+*
+* User Defined data types
+*
+* u8 1 byte
+* u16 2 bytes
+* u32 4 bytes / 1 word
+* u64 8 bytes / double word
+*
+*
+*
+* MODIFICATION HISTORY:
+*
+* Ver Who Date Changes
+* ----- ------ -------- -----------------------------------------------------
+* 1.00a drg/jz 01/20/10 First release..
+* 2.0 adk 12/10/13 Updated as per the New Tcl API's
+* 3.0 pkp 12/09/14 Added support for Zynq Ultrascale Mp.Also code
+* modified for MISRA-C:2012 compliance.
+* 3.2 mus 10/28/16 Modified XTtcPs_GetCounterValue and XTtcPs_SetInterval
+* macros to return 32 bit values for zynq ultrascale+mpsoc
+* ms 01/23/17 Modified xil_printf statement in main function for all
+* examples to ensure that "Successfully ran" and "Failed"
+* strings are available in all examples. This is a fix
+* for CR-965028.
+* ms 03/17/17 Added readme.txt file in examples folder for doxygen
+* generation.
+* 3.4 ms 04/18/17 Modified tcl file to add suffix U for all macros
+* definitions of ttcps in xparameters.h
+* 3.5 srm 10/06/17 Added new typedef XMatchRegValue for match register width
+* 3.8 aru 12/19/18 Modified in XTtcPs_ClearInterruptStatus function to clear
+* Interrupt status register by reading instead of writing it.
+* 3.14 mus 02/22/21 Updated XTtcPs_ClearInterruptStatus to fix compiler warning.
+* It fixes CR#1084697.
+* 3.16 adk 04/19/22 Fix infinite loop in the examples by adding polled
+* timeout loop.
+* 3.18 adk 04/14/23 Added support for system device-tree flow.
+*
+*
+******************************************************************************/
+
+#ifndef XTTCPS_H /* prevent circular inclusions */
+#define XTTCPS_H /* by using protection macros */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/***************************** Include Files *********************************/
+
+#include "xttcps_hw.h"
+#include "xstatus.h"
+
+/*****************************************************************************/
+typedef void (*XTtcPs_StatusHandler) (const void *CallBackRef, u32 StatusEvent);
+
+
+/************************** Constant Definitions *****************************/
+
+
+/*
+ * Maximum Value for interval counter
+ */
+ #if defined(ARMA9)
+ #define XTTCPS_MAX_INTERVAL_COUNT 0xFFFFU
+ #else
+ #define XTTCPS_MAX_INTERVAL_COUNT 0xFFFFFFFFU
+ #endif
+
+#define XTTCPS_NUM_COUNTERS 3U
+/** @name Configuration options
+ *
+ * Options for the device. Each of the options is bit field, so more than one
+ * options can be specified.
+ *
+ * @{
+ */
+#define XTTCPS_OPTION_EXTERNAL_CLK 0x00000001U /**< External clock source */
+#define XTTCPS_OPTION_CLK_EDGE_NEG 0x00000002U /**< Clock on trailing edge for
+ external clock*/
+#define XTTCPS_OPTION_INTERVAL_MODE 0x00000004U /**< Interval mode */
+#define XTTCPS_OPTION_DECREMENT 0x00000008U /**< Decrement the counter */
+#define XTTCPS_OPTION_MATCH_MODE 0x00000010U /**< Match mode */
+#define XTTCPS_OPTION_WAVE_DISABLE 0x00000020U /**< No waveform output */
+#define XTTCPS_OPTION_WAVE_POLARITY 0x00000040U /**< Waveform polarity */
+/*@}*/
+/**************************** Type Definitions *******************************/
+
+/**
+ * This typedef contains configuration information for the device.
+ */
+typedef struct {
+#ifndef SDT
+ u16 DeviceId; /**< Unique ID for device */
+#else
+ char *Name;
+#endif
+ u32 BaseAddress; /**< Base address for device */
+ u32 InputClockHz; /**< Input clock frequency */
+#if !defined(SDT) && defined(XIL_INTERRUPT)
+ u32 IntrId;
+ UINTPTR IntrParent; /** Bit[0] Interrupt parent type Bit[64/32:1] Parent base address */
+#elif defined(SDT)
+ u32 IntrId[XTTCPS_NUM_COUNTERS]; /** Bits[11:0] Interrupt-id Bits[15:12] trigger type and level flags */
+ UINTPTR IntrParent; /** Bit[0] Interrupt parent type Bit[64/32:1] Parent base address */
+#endif
+} XTtcPs_Config;
+
+/**
+ * The XTtcPs driver instance data. The user is required to allocate a
+ * variable of this type for each PS timer/counter device in the system. A
+ * pointer to a variable of this type is then passed to various driver API
+ * functions.
+ */
+typedef struct {
+ XTtcPs_Config Config; /**< Configuration structure */
+ u32 IsReady; /**< Device is initialized and ready */
+ XTtcPs_StatusHandler StatusHandler;
+ void *StatusRef; /**< Callback reference for status handler */
+} XTtcPs;
+
+/**
+ * This typedef contains interval count and Match register value
+ */
+#if defined(ARMA9)
+typedef u16 XInterval;
+typedef u16 XMatchRegValue;
+#else
+typedef u32 XInterval;
+typedef u32 XMatchRegValue;
+#endif
+/***************** Macros (Inline Functions) Definitions *********************/
+
+/*
+ * Internal helper macros
+ */
+#define InstReadReg(InstancePtr, RegOffset) \
+ (Xil_In32(((InstancePtr)->Config.BaseAddress) + (u32)(RegOffset)))
+
+#define InstWriteReg(InstancePtr, RegOffset, Data) \
+ (Xil_Out32(((InstancePtr)->Config.BaseAddress) + (u32)(RegOffset), (u32)(Data)))
+
+/*****************************************************************************/
+/**
+*
+* This function starts the counter/timer without resetting the counter value.
+*
+* @param InstancePtr is a pointer to the XTtcPs instance.
+*
+* @return None
+*
+* @note C-style signature:
+* void XTtcPs_Start(XTtcPs *InstancePtr)
+*
+****************************************************************************/
+#define XTtcPs_Start(InstancePtr) \
+ InstWriteReg((InstancePtr), XTTCPS_CNT_CNTRL_OFFSET, \
+ (InstReadReg((InstancePtr), XTTCPS_CNT_CNTRL_OFFSET) & \
+ ~XTTCPS_CNT_CNTRL_DIS_MASK))
+
+/*****************************************************************************/
+/**
+*
+* This function stops the counter/timer. This macro may be called at any time
+* to stop the counter. The counter holds the last value until it is reset,
+* restarted or enabled.
+*
+* @param InstancePtr is a pointer to the XTtcPs instance.
+*
+* @return None
+*
+* @note C-style signature:
+* void XTtcPs_Stop(XTtcPs *InstancePtr)
+*
+****************************************************************************/
+#define XTtcPs_Stop(InstancePtr) \
+ InstWriteReg((InstancePtr), XTTCPS_CNT_CNTRL_OFFSET, \
+ (InstReadReg((InstancePtr), XTTCPS_CNT_CNTRL_OFFSET) | \
+ XTTCPS_CNT_CNTRL_DIS_MASK))
+
+/*****************************************************************************/
+/**
+*
+* This function checks whether the timer counter has already started.
+*
+* @param InstancePtr is a pointer to the XTtcPs instance
+*
+* @return Non-zero if the device has started, '0' otherwise.
+*
+* @note C-style signature:
+* int XTtcPs_IsStarted(XTtcPs *InstancePtr)
+*
+****************************************************************************/
+#define XTtcPs_IsStarted(InstancePtr) \
+ ((InstReadReg((InstancePtr), XTTCPS_CNT_CNTRL_OFFSET) & \
+ XTTCPS_CNT_CNTRL_DIS_MASK) == 0U)
+
+/*****************************************************************************/
+/**
+*
+* This function returns the current 16-bit counter value. It may be called at
+* any time.
+*
+* @param InstancePtr is a pointer to the XTtcPs instance.
+*
+* @return zynq:16 bit counter value.
+* zynq ultrascale+mpsoc:32 bit counter value.
+*
+* @note C-style signature:
+* zynq: u16 XTtcPs_GetCounterValue(XTtcPs *InstancePtr)
+* zynq ultrascale+mpsoc: u32 XTtcPs_GetCounterValue(XTtcPs *InstancePtr)
+*
+****************************************************************************/
+#if defined(ARMA9)
+/*
+ * ttc supports 16 bit counter for zynq
+ */
+#define XTtcPs_GetCounterValue(InstancePtr) \
+ (u16)InstReadReg((InstancePtr), XTTCPS_COUNT_VALUE_OFFSET)
+#else
+/*
+ * ttc supports 32 bit counter for zynq ultrascale+mpsoc
+ */
+#define XTtcPs_GetCounterValue(InstancePtr) \
+ InstReadReg((InstancePtr), XTTCPS_COUNT_VALUE_OFFSET)
+#endif
+
+/*****************************************************************************/
+/**
+*
+* This function sets the interval value to be used in interval mode.
+*
+* @param InstancePtr is a pointer to the XTtcPs instance.
+* @param Value is the 16-bit value to be set in the interval register.
+*
+* @return None
+*
+* @note C-style signature:
+* void XTtcPs_SetInterval(XTtcPs *InstancePtr, XInterval Value)
+*
+****************************************************************************/
+#define XTtcPs_SetInterval(InstancePtr, Value) \
+ InstWriteReg((InstancePtr), XTTCPS_INTERVAL_VAL_OFFSET, (Value))
+
+/*****************************************************************************/
+/**
+*
+* This function gets the interval value from the interval register.
+*
+* @param InstancePtr is a pointer to the XTtcPs instance.
+*
+* @return zynq:16 bit interval value.
+* zynq ultrascale+mpsoc:32 bit interval value.
+*
+* @note C-style signature:
+* zynq: u16 XTtcPs_GetInterval(XTtcPs *InstancePtr)
+* zynq ultrascale+mpsoc: u32 XTtcPs_GetInterval(XTtcPs *InstancePtr)
+*
+****************************************************************************/
+#if defined(ARMA9)
+/*
+ * ttc supports 16 bit interval counter for zynq
+ */
+#define XTtcPs_GetInterval(InstancePtr) \
+ (u16)InstReadReg((InstancePtr), XTTCPS_INTERVAL_VAL_OFFSET)
+#else
+/*
+ * ttc supports 32 bit interval counter for zynq ultrascale+mpsoc
+ */
+#define XTtcPs_GetInterval(InstancePtr) \
+ InstReadReg((InstancePtr), XTTCPS_INTERVAL_VAL_OFFSET)
+#endif
+/*****************************************************************************/
+/**
+*
+* This macro resets the count register. It may be called at any time. The
+* counter is reset to either 0 or 0xFFFF, or the interval value, depending on
+* the increment/decrement mode. The state of the counter, as started or
+* stopped, is not affected by calling reset.
+*
+* @param InstancePtr is a pointer to the XTtcPs instance.
+*
+* @return None
+*
+* @note C-style signature:
+* void XTtcPs_ResetCounterValue(XTtcPs *InstancePtr)
+*
+****************************************************************************/
+#define XTtcPs_ResetCounterValue(InstancePtr) \
+ InstWriteReg((InstancePtr), XTTCPS_CNT_CNTRL_OFFSET, \
+ (InstReadReg((InstancePtr), XTTCPS_CNT_CNTRL_OFFSET) | \
+ (u32)XTTCPS_CNT_CNTRL_RST_MASK))
+
+/*****************************************************************************/
+/**
+*
+* This function enables the interrupts.
+*
+* @param InstancePtr is a pointer to the XTtcPs instance.
+* @param InterruptMask defines which interrupt should be enabled.
+* Constants are defined in xttcps_hw.h as XTTCPS_IXR_*.
+* This is a bit mask, all set bits will be enabled, cleared bits
+* will not be disabled.
+*
+* @return None.
+*
+* @note
+* C-style signature:
+* void XTtcPs_EnableInterrupts(XTtcPs *InstancePtr, u32 InterruptMask)
+*
+******************************************************************************/
+#define XTtcPs_EnableInterrupts(InstancePtr, InterruptMask) \
+ InstWriteReg((InstancePtr), XTTCPS_IER_OFFSET, \
+ (InstReadReg((InstancePtr), XTTCPS_IER_OFFSET) | \
+ (InterruptMask)))
+
+/*****************************************************************************/
+/**
+*
+* This function disables the interrupts.
+*
+* @param InstancePtr is a pointer to the XTtcPs instance.
+* @param InterruptMask defines which interrupt should be disabled.
+* Constants are defined in xttcps_hw.h as XTTCPS_IXR_*.
+* This is a bit mask, all set bits will be disabled, cleared bits
+* will not be disabled.
+*
+* @return None.
+*
+* @note
+* C-style signature:
+* void XTtcPs_DisableInterrupts(XTtcPs *InstancePtr, u32 InterruptMask)
+*
+******************************************************************************/
+#define XTtcPs_DisableInterrupts(InstancePtr, InterruptMask) \
+ InstWriteReg((InstancePtr), XTTCPS_IER_OFFSET, \
+ (InstReadReg((InstancePtr), XTTCPS_IER_OFFSET) & \
+ ~(InterruptMask)))
+
+/*****************************************************************************/
+/**
+*
+* This function reads the interrupt status.
+*
+* @param InstancePtr is a pointer to the XTtcPs instance.
+*
+* @return None.
+*
+* @note C-style signature:
+* u32 XTtcPs_GetInterruptStatus(XTtcPs *InstancePtr)
+*
+******************************************************************************/
+#define XTtcPs_GetInterruptStatus(InstancePtr) \
+ InstReadReg((InstancePtr), XTTCPS_ISR_OFFSET)
+
+/*****************************************************************************/
+/**
+*
+* This function clears the interrupt status.
+*
+* @param InstancePtr is a pointer to the XTtcPs instance.
+* @param InterruptMask defines which interrupt should be cleared.
+* Constants are defined in xttcps_hw.h as XTTCPS_IXR_*.
+* This is a bit mask, all set bits will be cleared, cleared bits
+* will not be cleared.
+*
+* @return None.
+*
+* @note
+* C-style signature:
+* void XTtcPs_ClearInterruptStatus(XTtcPs *InstancePtr, u32 InterruptMask)
+*
+******************************************************************************/
+#define XTtcPs_ClearInterruptStatus(InstancePtr, InterruptMask) \
+ (void) InterruptMask; \
+ InstReadReg((InstancePtr), XTTCPS_ISR_OFFSET)
+
+
+/************************** Function Prototypes ******************************/
+
+/*
+ * Initialization functions in xttcps_sinit.c
+ */
+#ifndef SDT
+XTtcPs_Config *XTtcPs_LookupConfig(u16 DeviceId);
+#else
+XTtcPs_Config *XTtcPs_LookupConfig(u32 BaseAddress);
+#endif
+
+/*
+ * Required functions, in xttcps.c
+ */
+s32 XTtcPs_CfgInitialize(XTtcPs *InstancePtr,
+ XTtcPs_Config * ConfigPtr, u32 EffectiveAddr);
+
+u32 XTtcPs_Release(XTtcPs *InstancePtr);
+void XTtcPs_SetMatchValue(XTtcPs *InstancePtr, u8 MatchIndex, XMatchRegValue Value);
+XMatchRegValue XTtcPs_GetMatchValue(XTtcPs *InstancePtr, u8 MatchIndex);
+
+void XTtcPs_SetPrescaler(XTtcPs *InstancePtr, u8 PrescalerValue);
+u8 XTtcPs_GetPrescaler(XTtcPs *InstancePtr);
+
+void XTtcPs_CalcIntervalFromFreq(XTtcPs *InstancePtr, u32 Freq,
+ XInterval *Interval, u8 *Prescaler);
+
+/*
+ * Functions for options, in file xttcps_options.c
+ */
+s32 XTtcPs_SetOptions(XTtcPs *InstancePtr, u32 Options);
+u32 XTtcPs_GetOptions(XTtcPs *InstancePtr);
+
+/*
+ * Function for self-test, in file xttcps_selftest.c
+ */
+s32 XTtcPs_SelfTest(XTtcPs *InstancePtr);
+u32 XTtcPs_InterruptHandler(XTtcPs *InstancePtr);
+void XTtcPs_SetStatusHandler(XTtcPs *InstancePtr, void *CallBackRef,
+ XTtcPs_StatusHandler FuncPointer);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* end of protection macro */
+/** @} */
diff --git a/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/include/xttcps_hw.h b/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/include/xttcps_hw.h
new file mode 100644
index 00000000..64354a35
--- /dev/null
+++ b/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/include/xttcps_hw.h
@@ -0,0 +1,208 @@
+/******************************************************************************
+* Copyright (C) 2010 - 2021 Xilinx, Inc. All rights reserved.
+* Copyright (c) 2022 Advanced Micro Devices, Inc. All Rights Reserved.
+* SPDX-License-Identifier: MIT
+******************************************************************************/
+
+/*****************************************************************************/
+/**
+*
+* @file xttcps_hw.h
+* @addtogroup ttcps Overview
+* @{
+*
+* This file defines the hardware interface to one of the three timer counters
+* in the Ps block.
+*
+*
+*
+* MODIFICATION HISTORY:
+*
+* Ver Who Date Changes
+* ----- ------ -------- -------------------------------------------------
+* 1.00a drg/jz 01/21/10 First release
+* 3.00 kvn 02/13/15 Modified code for MISRA-C:2012 compliance.
+* 3.5 srm 10/06/17 Updated XTTCPS_COUNT_VALUE_MASK,
+* XTTCPS_INTERVAL_VAL_MASK, XTTCPS_MATCH_MASK macros to
+* mask 16 bit values for zynq and 32 bit values for
+* zynq ultrascale+mpsoc "
+*
+*
+******************************************************************************/
+
+#ifndef XTTCPS_HW_H /* prevent circular inclusions */
+#define XTTCPS_HW_H /* by using protection macros */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/***************************** Include Files *********************************/
+
+#include "xil_types.h"
+#include "xil_assert.h"
+#include "xil_io.h"
+
+/************************** Constant Definitions *****************************/
+/*
+ * Flag for a9 processor
+ */
+ #if !defined (ARMR5) && !defined (__aarch64__) && !defined (ARMA53_32)
+ #define ARMA9
+ #endif
+
+/** @name Register Map
+ *
+ * Register offsets from the base address of the device.
+ *
+ * @{
+ */
+#define XTTCPS_CLK_CNTRL_OFFSET 0x00000000U /**< Clock Control Register */
+#define XTTCPS_CNT_CNTRL_OFFSET 0x0000000CU /**< Counter Control Register*/
+#define XTTCPS_COUNT_VALUE_OFFSET 0x00000018U /**< Current Counter Value */
+#define XTTCPS_INTERVAL_VAL_OFFSET 0x00000024U /**< Interval Count Value */
+#define XTTCPS_MATCH_0_OFFSET 0x00000030U /**< Match 1 value */
+#define XTTCPS_MATCH_1_OFFSET 0x0000003CU /**< Match 2 value */
+#define XTTCPS_MATCH_2_OFFSET 0x00000048U /**< Match 3 value */
+#define XTTCPS_ISR_OFFSET 0x00000054U /**< Interrupt Status Register */
+#define XTTCPS_IER_OFFSET 0x00000060U /**< Interrupt Enable Register */
+/* @} */
+
+/** @name Clock Control Register
+ * Clock Control Register definitions
+ * @{
+ */
+#define XTTCPS_CLK_CNTRL_PS_EN_MASK 0x00000001U /**< Prescale enable */
+#define XTTCPS_CLK_CNTRL_PS_VAL_MASK 0x0000001EU /**< Prescale value */
+#define XTTCPS_CLK_CNTRL_PS_VAL_SHIFT 1U /**< Prescale shift */
+#define XTTCPS_CLK_CNTRL_PS_DISABLE 16U /**< Prescale disable */
+#define XTTCPS_CLK_CNTRL_SRC_MASK 0x00000020U /**< Clock source */
+#define XTTCPS_CLK_CNTRL_EXT_EDGE_MASK 0x00000040U /**< External Clock edge */
+/* @} */
+
+/** @name Counter Control Register
+ * Counter Control Register definitions
+ * @{
+ */
+#define XTTCPS_CNT_CNTRL_DIS_MASK 0x00000001U /**< Disable the counter */
+#define XTTCPS_CNT_CNTRL_INT_MASK 0x00000002U /**< Interval mode */
+#define XTTCPS_CNT_CNTRL_DECR_MASK 0x00000004U /**< Decrement mode */
+#define XTTCPS_CNT_CNTRL_MATCH_MASK 0x00000008U /**< Match mode */
+#define XTTCPS_CNT_CNTRL_RST_MASK 0x00000010U /**< Reset counter */
+#define XTTCPS_CNT_CNTRL_EN_WAVE_MASK 0x00000020U /**< Enable waveform */
+#define XTTCPS_CNT_CNTRL_POL_WAVE_MASK 0x00000040U /**< Waveform polarity */
+#define XTTCPS_CNT_CNTRL_RESET_VALUE 0x00000021U /**< Reset value */
+/* @} */
+
+/** @name Current Counter Value Register
+ * Current Counter Value Register definitions
+ * @{
+ */
+#if defined(ARMA9)
+#define XTTCPS_COUNT_VALUE_MASK 0x0000FFFFU /**< 16-bit counter value */
+#else
+#define XTTCPS_COUNT_VALUE_MASK 0xFFFFFFFFU /**< 32-bit counter value */
+#endif
+/* @} */
+
+/** @name Interval Value Register
+ * Interval Value Register is the maximum value the counter will count up or
+ * down to.
+ * @{
+ */
+#if defined(ARMA9)
+#define XTTCPS_INTERVAL_VAL_MASK 0x0000FFFFU /**< 16-bit Interval value*/
+#else
+#define XTTCPS_INTERVAL_VAL_MASK 0xFFFFFFFFU /**< 32-bit Interval value*/
+#endif
+/* @} */
+
+/** @name Match Registers
+ * Definitions for Match registers, each timer counter has three match
+ * registers.
+ * @{
+ */
+#if defined(ARMA9)
+#define XTTCPS_MATCH_MASK 0x0000FFFFU /**< 16-bit Match value */
+#else
+#define XTTCPS_MATCH_MASK 0xFFFFFFFFU /**< 32-bit Match value */
+#endif
+#define XTTCPS_NUM_MATCH_REG 3U /**< Num of Match reg */
+/* @} */
+
+/** @name Interrupt Registers
+ * Following register bit mask is for all interrupt registers.
+ *
+ * @{
+ */
+#define XTTCPS_IXR_INTERVAL_MASK 0x00000001U /**< Interval Interrupt */
+#define XTTCPS_IXR_MATCH_0_MASK 0x00000002U /**< Match 1 Interrupt */
+#define XTTCPS_IXR_MATCH_1_MASK 0x00000004U /**< Match 2 Interrupt */
+#define XTTCPS_IXR_MATCH_2_MASK 0x00000008U /**< Match 3 Interrupt */
+#define XTTCPS_IXR_CNT_OVR_MASK 0x00000010U /**< Counter Overflow */
+#define XTTCPS_IXR_ALL_MASK 0x0000001FU /**< All valid Interrupts */
+/* @} */
+
+
+/***************** Macros (Inline Functions) Definitions *********************/
+
+/****************************************************************************/
+/**
+*
+* Read the given Timer Counter register.
+*
+* @param BaseAddress is the base address of the timer counter device.
+* @param RegOffset is the register offset to be read
+*
+* @return The 32-bit value of the register
+*
+* @note C-style signature:
+* u32 XTtcPs_ReadReg(u32 BaseAddress, u32 RegOffset)
+*
+*****************************************************************************/
+#define XTtcPs_ReadReg(BaseAddress, RegOffset) \
+ (Xil_In32((BaseAddress) + (u32)(RegOffset)))
+
+/****************************************************************************/
+/**
+*
+* Write the given Timer Counter register.
+*
+* @param BaseAddress is the base address of the timer counter device.
+* @param RegOffset is the register offset to be written
+* @param Data is the 32-bit value to write to the register
+*
+* @return None.
+*
+* @note C-style signature:
+* void XTtcPs_WriteReg(XTtcPs BaseAddress, u32 RegOffset,
+* u32 Data)
+*
+*****************************************************************************/
+#define XTtcPs_WriteReg(BaseAddress, RegOffset, Data) \
+ (Xil_Out32((BaseAddress) + (u32)(RegOffset), (u32)(Data)))
+
+/****************************************************************************/
+/**
+*
+* Calculate a match register offset using the Match Register index.
+*
+* @param MatchIndex is the 0-2 value of the match register
+*
+* @return MATCH_N_OFFSET.
+*
+* @note C-style signature:
+* u32 XTtcPs_Match_N_Offset(u8 MatchIndex)
+*
+*****************************************************************************/
+#define XTtcPs_Match_N_Offset(MatchIndex) \
+ ((u32)XTTCPS_MATCH_0_OFFSET + ((u32)(12U) * (u32)(MatchIndex)))
+
+/************************** Function Prototypes ******************************/
+
+/************************** Variable Definitions *****************************/
+#ifdef __cplusplus
+}
+#endif
+#endif /* end of protection macro */
+/** @} */
diff --git a/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/CMakeLists.txt b/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/CMakeLists.txt
new file mode 100644
index 00000000..325bbb0c
--- /dev/null
+++ b/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/CMakeLists.txt
@@ -0,0 +1,69 @@
+# Copyright (C) 2023 - 2024 Advanced Micro Devices, Inc. All rights reserved.
+# SPDX-License-Identifier: MIT
+cmake_minimum_required(VERSION 3.14.7)
+include(${CMAKE_CURRENT_SOURCE_DIR}/Lwip220Example.cmake NO_POLICY_SCOPE)
+project(lwip220)
+
+find_package(common)
+collector_create (PROJECT_LIB_HEADERS "${CMAKE_CURRENT_SOURCE_DIR}")
+collector_create (PROJECT_LIB_SOURCES "${CMAKE_CURRENT_SOURCE_DIR}")
+include_directories(${CMAKE_BINARY_DIR}/include)
+
+set(LWIP_DIR ${CMAKE_CURRENT_SOURCE_DIR}/lwip-2.2.0)
+set(LWIP_INCLUDE_DIRS
+ "${LWIP_DIR}/src"
+ "${LWIP_DIR}/src/include"
+ "${LWIP_DIR}/src/include/lwip"
+ "${LWIP_DIR}/contrib/ports/xilinx/include/arch"
+ "${LWIP_DIR}/contrib/ports/xilinx/include/netif"
+)
+include(${CMAKE_CURRENT_SOURCE_DIR}/Filelists.cmake NO_POLICY_SCOPE)
+collect (PROJECT_LIB_SOURCES ${lwipnoapps_SRCS})
+
+list(LENGTH EMACLITE_NUM_DRIVER_INSTANCES CONFIG_EMACLITE)
+list(LENGTH AXIETHERNET_NUM_DRIVER_INSTANCES CONFIG_AXIETHERNET)
+list(LENGTH EMACPS_NUM_DRIVER_INSTANCES CONFIG_EMACPS)
+foreach(x IN LISTS TOTAL_AXIETHERNET_PROP_LIST)
+ set(y ${${x}})
+ list(GET y -1 connected_ip)
+ list(GET y -2 axieth_rxcsum)
+ list(GET y -3 axieth_txcsum)
+ math(EXPR connected_ip "${connected_ip} & 0xF" OUTPUT_FORMAT HEXADECIMAL)
+ if (${connected_ip} EQUAL 0x1)
+ set(CONFIG_AXIFIFO 1)
+ elseif (${connected_ip} EQUAL 0x2)
+ set(CONFIG_AXIDMA 1)
+ elseif (${connected_ip} EQUAL 0x3)
+ set(CONFIG_AXIMCDMA 1)
+ endif()
+endforeach()
+add_subdirectory(${LWIP_DIR}/contrib/ports/xilinx/)
+include(${CMAKE_CURRENT_SOURCE_DIR}/lwip220.cmake NO_POLICY_SCOPE)
+
+list(APPEND TOTAL_MAC_INSTANCES ${EMACPS_NUM_DRIVER_INSTANCES})
+list(APPEND TOTAL_MAC_INSTANCES ${AXIETHERNET_NUM_DRIVER_INSTANCES})
+list(APPEND TOTAL_MAC_INSTANCES ${EMACLITE_NUM_DRIVER_INSTANCES})
+SET(MAC_INSTANCES "${TOTAL_MAC_INSTANCES}" CACHE STRING "MAC Instances")
+SET_PROPERTY(CACHE MAC_INSTANCES PROPERTY STRINGS "${TOTAL_MAC_INSTANCES}")
+list(LENGTH TOTAL_MAC_INSTANCES _len)
+if(${_len} EQUAL 0)
+ message(FATAL_ERROR "This library requires an Ethernet MAC IP instance in the hardware.")
+endif()
+
+collect (PROJECT_LIB_SOURCES xtopology_g.c)
+
+collector_list (_sources PROJECT_LIB_SOURCES)
+collector_list (_headers PROJECT_LIB_HEADERS)
+file(COPY ${_headers} DESTINATION ${CMAKE_BINARY_DIR}/include)
+file(COPY ${LWIP_INCLUDE_DIRS} DESTINATION ${CMAKE_BINARY_DIR}/include)
+if (NOT ${YOCTO})
+file(COPY_FILE ${CMAKE_BINARY_DIR}/include/lwipopts.h ${CMAKE_INCLUDE_PATH}/lwipopts.h)
+file(COPY_FILE ${CMAKE_BINARY_DIR}/include/xlwipconfig.h ${CMAKE_INCLUDE_PATH}/xlwipconfig.h)
+endif()
+add_library(lwip220 STATIC ${_sources})
+target_include_directories(lwip220 PUBLIC ${LWIP_INCLUDE_DIRS} "${LWIP_DIR}/src/include/lwip/")
+set_target_properties(lwip220 PROPERTIES LINKER_LANGUAGE C)
+get_headers(${_headers})
+set_target_properties(lwip220 PROPERTIES ADDITIONAL_CLEAN_FILES "${CMAKE_LIBRARY_PATH}/liblwip220.a;${CMAKE_INCLUDE_PATH}/lwipopts.h;${CMAKE_INCLUDE_PATH}/xlwipconfig.h;${clean_headers}")
+install(TARGETS lwip220 LIBRARY DESTINATION ${CMAKE_LIBRARY_PATH} ARCHIVE DESTINATION ${CMAKE_LIBRARY_PATH})
+install(DIRECTORY ${CMAKE_BINARY_DIR}/include DESTINATION ${CMAKE_INCLUDE_PATH}/..)
diff --git a/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/ChangeLog b/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/ChangeLog
new file mode 100644
index 00000000..edceb99f
--- /dev/null
+++ b/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/ChangeLog
@@ -0,0 +1,474 @@
+Change Log for lwip
+=================================
+2023-01-03
+ * PL Ethernet requires 8 byte padding when IEEE1588 is enabled;
+ Migrate this change from lwip202 to lwip211.
+2020-01-08
+ * Remove references to deprecated Xilkernel.
+2020-10-09
+ * Fix the optimization out of delay code with level O2 by
+ replacing the for loop with sleep for 1 second.
+2020-10-04
+ * Modify the sys_now function to return milliseconds instead
+ of ticks to fix lwip timers issue.
+2020-09-24
+ * Use Xil_In32 and Xil_Out32 functions to read/write
+ registers.
+2020-09-22
+ * Fix lwip application failure on VCU118 board.
+2020-08-18
+ * Add axiethernet support on versal.
+2020-08-14
+ * Fix RX pbuf freeing in GEM error handling path.
+2020-06-22
+ * Fix the Zynq base address check to use internal definition
+ instead of canonical definition.
+2020-05-08
+ * Fix the RX BD setup order to avoid clearing used bit without
+ buffer address.
+2019-08-24
+ * Add support for clock config in EL1 Non secure for Versal.
+2019-08-12
+ * Add support for clock setup for Versal.
+2019-07-30
+ * Add support for A53 32 bit compiler.
+2019-07-11
+ * Fix emacps hotplug bug.
+2019-05-17
+ * Add support for Versal
+2019-04-10
+ * Fix typos.
+2019-03-12
+ * Fix BYTE_ORDER redefined warnings in lwip arch/cpu.h.
+ * Fix warnings in emaclite adapter source.
+ * Fix xemacliteif_input() for freertos multi-packet scenario.
+2019-02-05
+ * Pick correct compiler for R5
+2019-01-21
+ * Fix freertos echo server compilation on emaclite platform.
+2019-01-11
+ * Upgrage to lwip211
+ * Fix cache handling in RX path for GEM
+2018-10-01
+ * Fix warning for redefining BYTE_ORDER
+2018-09-19
+ * In lwip tcl to support hierarchical designs pass -hier option to
+ get_cells command.
+2018-08-24
+ * Modify update_axi_ethernet_topology func(lwip202.tcl) to derive
+ interrupt source order programmatically. It fixes build error
+ due to change in HSI get_connected_intr_cntrl API output.
+2018-03-30
+ * Add AXI 2.5G Ethernet support
+2018-03-29
+ * Add mcdma support and handle IEEE_1588 for SGMII Phy in ethernet
+ * header
+2018-03-05
+ * Add Hot plug detect support for EmacPS and AXI Ethernet
+2018-03-14
+ * Avoid axi ethernet config initialize in two places.
+2018-01-19
+ * Add support for Realtek RTL8211 phy.
+2018-01-11
+ * Use UINTPTR for axidma baseaddr.
+2018-01-10
+ * Update xInsideISR flag in emacps_error_handler.
+2017-12-06
+ * Fix jumbo frame checks to work on R5
+2017-11-01
+ * Perform AXI DMA lookup based on base address.
+2017-10-27
+ * Correct proper references of TX BD ring in init_dma() and
+ emacps_error_handler().
+2017-10-04
+ * Include options to configure mbox in lwip202.mld and lwip202.tcl
+2017-10-13
+ * Add multicast MAC update for IPv6 in xemacpsif.c and xaxiemacif.c
+ * Add IPv6 source in lwip.makefile
+2017-09-20
+ * Disable L1 prefetch for ARMv8 in init_axi_dma function in xaxiemacif_dma.c.
+2017-09-12
+ * Disable L1 prefetch for ARMv8 in init_dma function in xemacpsif_dma.c.
+2017-09-09
+ * Add rx_reset_nodata workaround for Zynq GEM for freertos.
+2017-08-29
+ * Add support of IGMP in emacps
+2017-08-17
+ * Upgrade to LWIP2.0.2 version.
+ * Removed PPC References
+2017-08-14
+ * Don't perform data cache related operations when CCI is
+ enabled.
+2017-08-11
+ * Fix for conflicting types for xInsideISR. Fixes CR-981909.
+ * Fix for warnings in lwip141 axiethernet adapter.
+2017-08-03
+ * Correct compiler used for A9.
+2017-07-18
+ * Add freertos support for axiethernet fifo configuration.
+ * SW workaround for TI DP83867 PHY Data integrity issues on KCU116/VCU118 Boards.
+2017-06-14
+ * Add support for EL1 non secure mode.
+2017-03-07
+ * SW workaround for unstable link with TI DP83867 PHY
+ when RX CTRL is not strapped to MODE 3 or 4.
+2017-02-13
+ * Correct TI PHYCR register initialization
+2017-02-03
+ * Add jumbo frame support for ZynqMP ethernet
+2016-12-19
+ * Export options for user to change NO_SYS_NO_TIMERS and
+ LWIP_TCP_KEEP_ALIVE.
+2016-12-07
+ * Add Support for TI PHY DP83867 SGMII Mode configuration.
+2016-11-22
+ * Add support in xemaps_physpeed.c for newer version of Xilinx
+ PCS PMA core with phy address scanning.
+2016-11-09
+ * Fix compilation errors for microblaze based designs CR#963580
+ * dsb() is not available for Microblaze added checks for the same
+ * in the xaxiemacif_dma.c file.
+2016-11-06
+ * Axi Ethernet Lwip Performance issue on ZynqMP Fix for CR#953533
+ * The uncached memory needed for BDs were not aligned properly to meet
+ * AR3/R5 MMU requirements. The performance was low because of that anomaly.
+ * Fixed the issue by properly aligning the memory allocated for BDs.
+ * (Changes are made in the xaxiemacif_dma.c file).
+2016-08-30
+ * Add support for freertos in the emaclite adapter. Fix for CR#957572.
+2016-08-17
+ * Update divisors in CRL_APB (for ZynqMP) based on speed negotiated.
+2016-07-29
+ * Don't set clk dividers in Zynq SLCR when EMIO clock source is used.
+2016-07-11
+ * Change Zynq BD space attributes to device memory.
+2016-04-07
+ * Correct return handling in xemacps phy negotiation.
+2016-02-11
+ * Add Support for Axi Etherent on ZyqnMP.
+ * Update lwip.tcl to export proper gic baseadress for r5
+ to fix issues with AxiEthernet on ZynqMP R5.
+ * Fix compilation errors for Axi Ethernet on ZynqMP.
+2016-01-14
+ * Created a new version lwip141_v1_4
+ * Made changes for lwip to work with A53 with caches enabled.
+ * Corrected last tx and rx bd updation for corner scenarios.
+ * Make Zynq BD space normal non-cacheable instead of strongly ordered.
+ * Correct condition to select SLCR offset for emacps clk cfg(CR#930997).
+2015-10-12
+ * Created a new version lwip141_v1_3.
+ * Made changes in xemacpsif_dma.c to add required barriers.
+ * Remove repeated sysarch protect and unprotect calls.
+ * Replace printf with xil_printf.
+ * Add support for TI phy.
+2015-09-09
+ * Fix compilation issues with the non hier axi eth design
+2015-09-04
+ * Update makefile to allow incremental build.
+ * Add support for latest freertos (freertos821_xilinx)
+2015-08-19
+ * Fix bsp compilation errors when elite is configured
+ with interrupts though a concat IP (CR#875527)
+2015-08-18
+ * Error out for A53 32 bit compiler
+2015-08-10
+ * Add support for A53
+2015-07-19
+ * Add support for Zynq Ultrascale MPSoC emacps
+2015-07-15
+ * Add Support for Axi ethernet with fifo on zynq.
+2015-06-15
+ * Update the lwip tcl for Hier IP(To support User parameters).
+2015-05-15
+ * Don't inline the functions with the Toolchain. Fix RGMII Ethernet
+ Not working on Artix devices (CR#861391).
+2015-03-12
+ * Fix compilation Errors during generation of LWIP Echo server
+ application (CR#853861).
+2015-02-09
+ * Removed support for lltemac.
+ * Made changes in axiethernet adapter files as part of general
+ cleanup.
+ * Added support for 2 GigEs for GEM.
+ * Added support for non-Marvell PHY reporting.
+ * Made changes for axiethernet checksum validation logic that resulted
+ in performance improvement.
+2015-01-23
+ * Added support for the lwip141 stack.
+ * Created a New version of lwip141_v1_0.
+2014-9-12
+ * Created a new version lwip140_v2_4.
+ * It has CR fixes for 827638, 830976, 828866.
+2014-12-11
+ * Fixed the bug in the emaclite on zynq. Added the parameter
+ use_emaclite_on_zynq to the mld file.
+2014-11-11
+ * Fix for CR 835081 - lwip adapter for AxiEthernet does not
+ work for SGMII mode.
+2014-29-10
+ * Fix for CR 827686 - Gem connected 1000BASE-X in PL
+ getting "PHY not connected" error.
+ * Fix for CR 828796 - 2014.3 - AXI Ethernet - 1000BASEX interface not
+ working with echo server design on Zynq.
+ * Fix for CR 823736 - Fix typo error in xmaecliteif.c file.
+2014-13-06
+ * Fix for CR 802558 - LWIP library doesn't compile
+ with XilKernel/FreeRTOS BSP.
+ * Fix for CR 801076 - Few configurable options of
+ library are not propagated during compilation.
+2014-06-06
+ * Fix for CR 800240 - Removed the limitation of
+ supporting only Marvel PHY in AXI Ethernet adapter.
+2014-1-30
+ * Fix for CRs 771112 and 766087. The sys_arch.c
+ last made (related to freertos) are reverted back.
+2013-12-1
+ * A new version of lwip (v2_0) is created with tcl
+ changes related to HSM and new versioing scheme.
+2013-11-08
+ * Fix for CR#759896.
+2013-11-02
+ * Made changes in the file
+ src/contrib/ports/xilinx/sys_arch.c to fix issues
+ in the freertos port.
+2013-10-24
+ * New version of lwip140(1_07_a) created. Support
+ for emaclite on zynq is added by making changes in the
+ files:
+ data/lwip140_v2_1_0.mld
+ data/lwip140_v2_1_0.tcl
+ src/contrib/ports/xilinx/netif/xemacliteif.c
+ * Support for gmii to sgmii converter PHY is added by
+ making changes in the file:
+ src/contrib/ports/xilinx/netif/xemacpsif_physpeed.c
+2013-09-07
+ * Fix for CR# 735656. Modified
+ src/contrib/ports/xilinx/include/arch/cc.h
+ to add a hash define for LWIP_RAND
+2013-08-06
+ * New version of lwIP library (lwip140_v1_06a) is
+ created.
+ * Added support for AC701 board PHY and added
+ AxiEthernetUtilPhyDelay() API (CR 725551).
+ Files changed:
+ src/contrib/ports/xilinx/netif/xaxiemacif_physpeed.c
+ * Fixed CR 727441 - AXI Ethernet design on Zynq with
+ checksum configuration parameters disabled will fail
+ to work.
+ Files changed:
+ data/lwip140_v2_1_0.tcl
+
+2013-05-06
+ * Added new parameter 'ip_reass_max_pbufs' to IP options of
+ lwIP settings and removed unused parameter 'ip_reass_bufsize'.
+ Files Changed:
+ data/lwip140_v2_1_0.mld
+ data/lwip140_v2_1_0.tcl
+ * Increased PBUF Queue Size to fix TSR #715250 - "UDP RX mode is
+ not working for 64K datagram packets".
+ Files Changed:
+ src/contrib/ports/xilinx/netif/xpqueue.c
+ src/contrib/ports/xilinx/include/netif/xpqueue.h
+
+2013-05-01
+ * Modified the handling of fragmented packets in the
+ Zynq lwIP adapter (src/contrib/ports/xilinx/netif/xemacpsif_dma.c).
+ This is done to fix the CR 716040. The Used bit of the 1st BD
+ in the BD chain allocated for the packet fragments is cleared
+ at the end after clearing out the Used bits of all other BDs in
+ the chain.
+2013-04-26
+ * Modified parameter *_SGMII_PHYADDR to *_PHYADDR, the
+ config parameter C_PHYADDR applies to SGMII/1000BaseX
+ modes of operation (CR 704195).
+
+2013-04-19
+ * Created a new version of lwip140 (v1_05_a). The changes
+ are made in src/contrib/ports/xilinx/netif/xemacpsif_physpeed.c
+ to add support for the gmii2rgmii converter core.
+2013-02-18
+ * Added support for AXI Ethernet on Zynq. Changes
+ done in lwip140_v2_1_0.mld, lwip140_v2_1_0.tcl for
+ this support
+ Changed the AXI-Ethernet adapter files:
+ src/contrib/ports/xilinx/netif/xaxiemacif_physpeed.c,
+ src/contrib/ports/xilinx/netif/xaxiemacif.c,
+ src/contrib/ports/xilinx/netif/xaxiemacif_dma.c,
+ src/contrib/ports/xilinx/netif/xaxiemacif_hw.c
+ * A new configuration parameter 'use_axieth_on_zynq'
+ is added to lwIP software library. This parameter
+ should be selected if the AXI Ethernet adapter is
+ being used for lwIP on Zynq.
+
+2013-01-24
+ * Added SW workaround support for the SI #692601.
+ Description for the SI:
+ Under heavy Rx traffic, there will be a large
+ number of errors related to receive buffer not available
+ and the Rx data path can become unresponsive. To reduce the
+ probabilities for hitting this Silicon Issue, the SW writes
+ to bit 18 to flush a packet from Rx DPRAM immediately.
+
+2013-01-21
+ * Created a new version of lwIP (v1_04_a).
+ * Changed the Emac adapter file:
+ src/contrib/ports/xilinx/netif/xaxiemacif_physpeed.c,
+ Added support for SGMII mode (CR:676793);
+
+2012-08-17
+ * Created a new version of lwIP (v1_03_a).
+ * Changed data/lwip140_v2_1_0.tcl to fix UDP isses in FreeRTOS and
+ fix compilation issues when Emac1 is used (instead of Emac0).
+ * Changed the EmacPs adapter files:
+ src/contrib/ports/xilinx/netif/xemacpsif_dma.c,
+ src/contrib/ports/xilinx/netif/xemacpsif_hw.c,
+ src/contrib/ports/xilinx/netif/xemacpsif_physpeed.c,
+ src/contrib/ports/xilinx/netif/xemacpsif.c
+ src/contrib/ports/xilinx/include/netif/xemacpsif.h
+ to do code cleanups, modify the BD handling on Rx path for error cases,
+ modify error handling.
+ Added fast interrupt support for microblaze/axiethernet. Made
+ changes in xaxiemacif_dma.c for this.
+ Made changes to src/contrib/ports/xilinx/netif/xemacpsif_physpeed.c
+ to simplify the handling of SLCR register update for Emac0 and Emac1.
+ Made changes in tcl amd mld file to add a new configuration entry
+ for Zynq to specify the Emac Interface number. If only one
+ interface is present, then this entry will have no effect. But
+ if both the interfaces are present in the hardware, then depending
+ on this configuration entry a particular Emac will be chosen.
+ lwIP does not support use of both the interfaces simultaneously.
+
+2012-07-06
+ * Made changes in src/contrib/ports/xilinx/netif/xaxiemacif_dma.c
+ to make changes in some of AxiDMA API calls which are changed in
+ the latest version of AxiDma driver.
+
+2012-06-04
+ * Added support for freertos. Changes are done in lwip140_v2_1_0.mld,
+ lwip140_v2_1_0.tcl, sys_arch.h, xadapter.h, xadapter.c, xemacpsif.c,
+ xemacpsif_dma.c, xemacpsif_hw.c, sys_arch.c.
+ * Modified error handling for EmacPs errors. Changes are done in
+ xemacpsif.c, xemacpsif_dma.c, xemacpsif_hw.c.
+
+2012-04-15
+ * In function init_dma in file xemacpsif_dma.c, the calls to
+ Xil_DisableMMU and Xil_EnableMMU are removed. Now for changing
+ attributes in the translation table, the only function called is
+ Xil_SetTlbAttributes.
+
+2012-03-12
+ * In file xaxiemacif_dma.c, the function alloc_bdspace is updated
+ so that the assert calls are under #if DEBUG statement. This is
+ done to remove compilation issues with the new microblaze
+ toolchain.
+ Similar changes are done in xlltemacif_dma.c.
+
+2012-03-12
+ * In file xemacliteif.c the function xemacif_recv_handler is
+ updated to free the pbufs upon error conditions (before returning
+ back from the function).
+
+2012-03-03
+ * The SLCR divisor settings for GEM Tx clock for Zynq is now used
+ from xparameters.h. Corresponding changes are made in
+ src/contrib/ports/xilinx/netif/xemacpsif_physpeed.c.
+ * Changes are made in src/contrib/ports/xilinx/sys_arch_raw.c for
+ functions sys_arch_protect and sys_arch_unprotect. Earlier for
+ Zynq/PEEP cases for sys_arch_protect we used to disable only the
+ Emac interrupt and enable back it in sys_arch_unprotect. Now
+ for Zynq all interrupts are disabled in CPSR (sys_arch_protect)
+ and enabled back in sys_arch_unprotect.
+ * Changes are made in src/contrib/ports/xilinx/netif/xemacpsif_dma.c
+ for proper interrupt disabling and enabling for Tx. Also some
+ optimizations are done to improve performance numbers.
+
+2012-01-25
+ * Following changes are made in file
+ src/contrib/ports/xilinx/netif/xemacpsif_dma.c :
+ Changes are made for Zynq/PEEP adapter so that the BDs are allocated
+ at fixed addresses 0xFF00000 (for Rx Bds) and 0xFF10000 (for Tx Bds).
+ The address range of 1 MB starting at 0xFF00000 is made uncached by
+ setting attributes in the MMU table (in function init_dma).
+ * Changes are made in
+ src/contrib/ports/xilinx/netif/xemacpsif_physpeed.c to have separate
+ PHY initializations for PEEP and Zynq boards.
+ * Changes are made in src/contrib/ports/xilinx/sys_arch_raw.c. In
+ function sys_arch_protect the EmacIntr is disabled instead of disabling
+ the IRQ in CPSR. This change needs to be revisited later and a better
+ solution needs to be adapted. Similar changes are done in
+ sys_arch_unprotect.
+ * DMA/GEM Error handling is added/changed for Zynq/PEEP. Hence changes
+ are made in src/contrib/ports/xilinx/netif/xemacpsif.c and
+ src/contrib/ports/xilinx/netif/xemacpsif_hw.c.
+ * The MDIO divisor is set as 224 in file
+ src/contrib/ports/xilinx/netif/xemacpsif_hw.c.
+2011-11-18
+ * Upgraded the to lwip140. Because of it there are lots of changes
+ throughout the lwip files.
+ * There was an existing bug because of which txperf used to hang
+ after a few minutes. It is fixed in src/lwip-1.4.0/src/core/tcp_out.c.
+ After entering into the function tcp_output, we disable interrupts
+ and just before existing the function, we enable back the interrupts.
+ This is done for microblaze and ppc platforms.
+ * For lwip140 the semaphore, mutex, mailbox and pthread interfaces
+ have changed. Corresponding changes are done in file sys_arch.c.
+ * The functions SYS_ARCH_PROTECT and SYS_ARCH_UNPROTECT are now
+ made as macros for better performance.
+ * The file src/include/lwip/def.h is changed so that for endian
+ swapping only macros are used instead of functions. This is done
+ to have better performance.
+ * Support for Zynq is added.
+2011-08-29
+ * src/makefile: Made changes not to echo files being compiled.
+ * src/contrib/ports/xilinx/include/netif/xaxiemacif.h: Added function
+ prototypes for PHY configuration.
+ * src/contrib/ports/xilinx/include/netif/xlltemacif.h: Added function
+ prototypes for PHY configuration.
+ * src/contrib/ports/xilinx/netif/xadapter.c: Made changes in function
+ xemacif_input to remove compilation warnings. The exact change is,
+ replacing "return;" statements with "return 0;".
+ * src/contrib/ports/xilinx/netif/xaxiemacif_dma.c: Removed the unused
+ variable "csum_in_packet" in the function "is_checksum_valid".
+ * src/contrib/ports/xilinx/netif/xaxiemacif_hw.c: Removed unused variables
+ "rdy" and "lock_message_printed" in function "init_axiemac".
+ The PHY configuration related code is removed from the function
+ "init_axiemac", since it is now being done in a separate function.
+ * src/contrib/ports/xilinx/netif/xaxiemacif_physpeed.c: The unused function
+ "get_marvel_phy_speed" is removed.
+ The function "get_IEEE_phy_speed" is changed to correctly advertise speeds
+ and restart autonegotiation.
+ A new function "configure_IEEE_phy_speed" is added to configure PHY speeds
+ when autonegotiation is not done.
+ A new function "Phy_Setup" is added to configure the PHY.
+ Hash defines for PHY registers and PHY bit settings are added.
+ * src/contrib/ports/xilinx/netif/xemacliteif: The function
+ "low_level_init" is changed to start PHY autonegotiation when required
+ and to set correct PHY speeds when autonegotiation is not being used.
+ A new function "detect_phy_emaclite" is added to detect the PHY address
+ connected.
+ A new function "get_IEEE_phy_speed_emaclite" is added to correctly
+ advertise relevant PHY speeds (1000 Mbps not advertised) and to restart
+ PHY autonegotiation. This function returns the autonegotiated PHY speed.
+ A new function "configure_IEEE_phy_speed_emaclite" is added to
+ configure the proper PHY speed when PHY autonegotiation is not
+ happenning.
+ Hash defines for PHY registers and PHY bit settings are added.
+ * src/contrib/ports/xilinx/netif/xlltemacif_hw.c:The PHY configuration
+ related code is removed from the function "init_lltemac", since it is now
+ being done in a separate function.
+ * src/contrib/ports/xilinx/netif/xlltemacif_physpeed.c:The unused function
+ "get_marvel_phy_speed" is removed.
+ The function "get_IEEE_phy_speed" is changed to correctly advertise speeds
+ and restart autonegotiation.
+ A new function "configure_IEEE_phy_speed" is added to configure PHY speeds
+ when autonegotiation is not done.
+ A new function "Phy_Setup" is added to configure the PHY.
+ Hash defines for PHY registers and PHY bit settings are added.
+2014-02-12
+ * Change makefile to remove -p option with mkdir. CR# 773090.
+2014-04-16
+ * Fixed the CR#788954 Changes are Made in the xemacliteif.c file
+2014-04-20
+ * Fixed the CR#792040 Changes are Made in the lwip tcl file
+2014-04-23
+ * Fixed the CR#781147 Changes are made in the Makefile.
diff --git a/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/Filelists.cmake b/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/Filelists.cmake
new file mode 100644
index 00000000..8d552017
--- /dev/null
+++ b/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/Filelists.cmake
@@ -0,0 +1,248 @@
+# Copyright (C) 2023 - 2024 Advanced Micro Devices, Inc. All rights reserved.
+# SPDX-License-Identifier: MIT
+
+# This file is indended to be included in end-user CMakeLists.txt
+# include(/path/to/Filelists.cmake)
+# It assumes the variable LWIP_DIR is defined pointing to the
+# root path of lwIP sources.
+#
+# This file is NOT designed (on purpose) to be used as cmake
+# subdir via add_subdirectory()
+# The intention is to provide greater flexibility to users to
+# create their own targets using the *_SRCS variables.
+
+set(LWIP_VERSION_MAJOR "2")
+set(LWIP_VERSION_MINOR "2")
+set(LWIP_VERSION_REVISION "0")
+# LWIP_VERSION_RC is set to LWIP_RC_RELEASE for official releases
+# LWIP_VERSION_RC is set to LWIP_RC_DEVELOPMENT for Git versions
+# Numbers 1..31 are reserved for release candidates
+set(LWIP_VERSION_RC "LWIP_RC_RELEASE")
+
+if ("${LWIP_VERSION_RC}" STREQUAL "LWIP_RC_RELEASE")
+ set(LWIP_VERSION_STRING
+ "${LWIP_VERSION_MAJOR}.${LWIP_VERSION_MINOR}.${LWIP_VERSION_REVISION}"
+ )
+elseif ("${LWIP_VERSION_RC}" STREQUAL "LWIP_RC_DEVELOPMENT")
+ set(LWIP_VERSION_STRING
+ "${LWIP_VERSION_MAJOR}.${LWIP_VERSION_MINOR}.${LWIP_VERSION_REVISION}.dev"
+ )
+else ("${LWIP_VERSION_RC}" STREQUAL "LWIP_RC_RELEASE")
+ set(LWIP_VERSION_STRING
+ "${LWIP_VERSION_MAJOR}.${LWIP_VERSION_MINOR}.${LWIP_VERSION_REVISION}.rc${LWIP_VERSION_RC}"
+ )
+endif ("${LWIP_VERSION_RC}" STREQUAL "LWIP_RC_RELEASE")
+
+# The minimum set of files needed for lwIP.
+set(lwipcore_SRCS
+ ${LWIP_DIR}/src/core/init.c
+ ${LWIP_DIR}/src/core/def.c
+ ${LWIP_DIR}/src/core/dns.c
+ ${LWIP_DIR}/src/core/inet_chksum.c
+ ${LWIP_DIR}/src/core/ip.c
+ ${LWIP_DIR}/src/core/mem.c
+ ${LWIP_DIR}/src/core/memp.c
+ ${LWIP_DIR}/src/core/netif.c
+ ${LWIP_DIR}/src/core/pbuf.c
+ ${LWIP_DIR}/src/core/raw.c
+ ${LWIP_DIR}/src/core/stats.c
+ ${LWIP_DIR}/src/core/sys.c
+ ${LWIP_DIR}/src/core/altcp.c
+ ${LWIP_DIR}/src/core/altcp_alloc.c
+ ${LWIP_DIR}/src/core/altcp_tcp.c
+ ${LWIP_DIR}/src/core/tcp.c
+ ${LWIP_DIR}/src/core/tcp_in.c
+ ${LWIP_DIR}/src/core/tcp_out.c
+ ${LWIP_DIR}/src/core/timeouts.c
+ ${LWIP_DIR}/src/core/udp.c
+)
+set(lwipcore4_SRCS
+ ${LWIP_DIR}/src/core/ipv4/autoip.c
+ ${LWIP_DIR}/src/core/ipv4/dhcp.c
+ ${LWIP_DIR}/src/core/ipv4/etharp.c
+ ${LWIP_DIR}/src/core/ipv4/icmp.c
+ ${LWIP_DIR}/src/core/ipv4/igmp.c
+ ${LWIP_DIR}/src/core/ipv4/ip4_frag.c
+ ${LWIP_DIR}/src/core/ipv4/ip4.c
+ ${LWIP_DIR}/src/core/ipv4/ip4_addr.c
+ ${LWIP_DIR}/src/core/ipv4/acd.c
+)
+set(lwipcore6_SRCS
+ ${LWIP_DIR}/src/core/ipv6/dhcp6.c
+ ${LWIP_DIR}/src/core/ipv6/ethip6.c
+ ${LWIP_DIR}/src/core/ipv6/icmp6.c
+ ${LWIP_DIR}/src/core/ipv6/inet6.c
+ ${LWIP_DIR}/src/core/ipv6/ip6.c
+ ${LWIP_DIR}/src/core/ipv6/ip6_addr.c
+ ${LWIP_DIR}/src/core/ipv6/ip6_frag.c
+ ${LWIP_DIR}/src/core/ipv6/mld6.c
+ ${LWIP_DIR}/src/core/ipv6/nd6.c
+)
+
+# APIFILES: The files which implement the sequential and socket APIs.
+set(lwipapi_SRCS
+ ${LWIP_DIR}/src/api/api_lib.c
+ ${LWIP_DIR}/src/api/api_msg.c
+ ${LWIP_DIR}/src/api/err.c
+ ${LWIP_DIR}/src/api/if_api.c
+ ${LWIP_DIR}/src/api/netbuf.c
+ ${LWIP_DIR}/src/api/netdb.c
+ ${LWIP_DIR}/src/api/netifapi.c
+ ${LWIP_DIR}/src/api/sockets.c
+ ${LWIP_DIR}/src/api/tcpip.c
+)
+
+# Files implementing various generic network interface functions
+set(lwipnetif_SRCS
+ ${LWIP_DIR}/src/netif/ethernet.c
+ ${LWIP_DIR}/src/netif/bridgeif.c
+ ${LWIP_DIR}/src/netif/bridgeif_fdb.c
+ ${LWIP_DIR}/src/netif/slipif.c
+)
+
+# 6LoWPAN
+set(lwipsixlowpan_SRCS
+ ${LWIP_DIR}/src/netif/lowpan6_common.c
+ ${LWIP_DIR}/src/netif/lowpan6.c
+ ${LWIP_DIR}/src/netif/lowpan6_ble.c
+ ${LWIP_DIR}/src/netif/zepif.c
+)
+
+# PPP
+set(lwipppp_SRCS
+ ${LWIP_DIR}/src/netif/ppp/auth.c
+ ${LWIP_DIR}/src/netif/ppp/ccp.c
+ ${LWIP_DIR}/src/netif/ppp/chap-md5.c
+ ${LWIP_DIR}/src/netif/ppp/chap_ms.c
+ ${LWIP_DIR}/src/netif/ppp/chap-new.c
+ ${LWIP_DIR}/src/netif/ppp/demand.c
+ ${LWIP_DIR}/src/netif/ppp/eap.c
+ ${LWIP_DIR}/src/netif/ppp/ecp.c
+ ${LWIP_DIR}/src/netif/ppp/eui64.c
+ ${LWIP_DIR}/src/netif/ppp/fsm.c
+ ${LWIP_DIR}/src/netif/ppp/ipcp.c
+ ${LWIP_DIR}/src/netif/ppp/ipv6cp.c
+ ${LWIP_DIR}/src/netif/ppp/lcp.c
+ ${LWIP_DIR}/src/netif/ppp/magic.c
+ ${LWIP_DIR}/src/netif/ppp/mppe.c
+ ${LWIP_DIR}/src/netif/ppp/multilink.c
+ ${LWIP_DIR}/src/netif/ppp/ppp.c
+ ${LWIP_DIR}/src/netif/ppp/pppapi.c
+ ${LWIP_DIR}/src/netif/ppp/pppcrypt.c
+ ${LWIP_DIR}/src/netif/ppp/pppoe.c
+ ${LWIP_DIR}/src/netif/ppp/pppol2tp.c
+ ${LWIP_DIR}/src/netif/ppp/pppos.c
+ ${LWIP_DIR}/src/netif/ppp/upap.c
+ ${LWIP_DIR}/src/netif/ppp/utils.c
+ ${LWIP_DIR}/src/netif/ppp/vj.c
+ ${LWIP_DIR}/src/netif/ppp/polarssl/arc4.c
+ ${LWIP_DIR}/src/netif/ppp/polarssl/des.c
+ ${LWIP_DIR}/src/netif/ppp/polarssl/md4.c
+ ${LWIP_DIR}/src/netif/ppp/polarssl/md5.c
+ ${LWIP_DIR}/src/netif/ppp/polarssl/sha1.c
+)
+
+# SNMPv3 agent
+set(lwipsnmp_SRCS
+ ${LWIP_DIR}/src/apps/snmp/snmp_asn1.c
+ ${LWIP_DIR}/src/apps/snmp/snmp_core.c
+ ${LWIP_DIR}/src/apps/snmp/snmp_mib2.c
+ ${LWIP_DIR}/src/apps/snmp/snmp_mib2_icmp.c
+ ${LWIP_DIR}/src/apps/snmp/snmp_mib2_interfaces.c
+ ${LWIP_DIR}/src/apps/snmp/snmp_mib2_ip.c
+ ${LWIP_DIR}/src/apps/snmp/snmp_mib2_snmp.c
+ ${LWIP_DIR}/src/apps/snmp/snmp_mib2_system.c
+ ${LWIP_DIR}/src/apps/snmp/snmp_mib2_tcp.c
+ ${LWIP_DIR}/src/apps/snmp/snmp_mib2_udp.c
+ ${LWIP_DIR}/src/apps/snmp/snmp_snmpv2_framework.c
+ ${LWIP_DIR}/src/apps/snmp/snmp_snmpv2_usm.c
+ ${LWIP_DIR}/src/apps/snmp/snmp_msg.c
+ ${LWIP_DIR}/src/apps/snmp/snmpv3.c
+ ${LWIP_DIR}/src/apps/snmp/snmp_netconn.c
+ ${LWIP_DIR}/src/apps/snmp/snmp_pbuf_stream.c
+ ${LWIP_DIR}/src/apps/snmp/snmp_raw.c
+ ${LWIP_DIR}/src/apps/snmp/snmp_scalar.c
+ ${LWIP_DIR}/src/apps/snmp/snmp_table.c
+ ${LWIP_DIR}/src/apps/snmp/snmp_threadsync.c
+ ${LWIP_DIR}/src/apps/snmp/snmp_traps.c
+)
+
+# HTTP server + client
+set(lwiphttp_SRCS
+ ${LWIP_DIR}/src/apps/http/altcp_proxyconnect.c
+ ${LWIP_DIR}/src/apps/http/fs.c
+ ${LWIP_DIR}/src/apps/http/http_client.c
+ ${LWIP_DIR}/src/apps/http/httpd.c
+)
+
+# MAKEFSDATA HTTP server host utility
+set(lwipmakefsdata_SRCS
+ ${LWIP_DIR}/src/apps/http/makefsdata/makefsdata.c
+)
+
+# IPERF server
+set(lwipiperf_SRCS
+ ${LWIP_DIR}/src/apps/lwiperf/lwiperf.c
+)
+
+# SMTP client
+set(lwipsmtp_SRCS
+ ${LWIP_DIR}/src/apps/smtp/smtp.c
+)
+
+# SNTP client
+set(lwipsntp_SRCS
+ ${LWIP_DIR}/src/apps/sntp/sntp.c
+)
+
+# MDNS responder
+set(lwipmdns_SRCS
+ ${LWIP_DIR}/src/apps/mdns/mdns.c
+)
+
+# NetBIOS name server
+set(lwipnetbios_SRCS
+ ${LWIP_DIR}/src/apps/netbiosns/netbiosns.c
+)
+
+# TFTP server files
+set(lwiptftp_SRCS
+ ${LWIP_DIR}/src/apps/tftp/tftp_server.c
+)
+
+# MQTT client files
+set(lwipmqtt_SRCS
+ ${LWIP_DIR}/src/apps/mqtt/mqtt.c
+)
+
+# ARM MBEDTLS related files of lwIP rep
+set(lwipmbedtls_SRCS
+ ${LWIP_DIR}/src/apps/altcp_tls/altcp_tls_mbedtls.c
+ ${LWIP_DIR}/src/apps/altcp_tls/altcp_tls_mbedtls_mem.c
+ ${LWIP_DIR}/src/apps/snmp/snmpv3_mbedtls.c
+)
+
+# All LWIP files without apps
+set(lwipnoapps_SRCS
+ ${lwipcore_SRCS}
+ ${lwipcore4_SRCS}
+ ${lwipcore6_SRCS}
+ ${lwipapi_SRCS}
+ ${lwipnetif_SRCS}
+ ${lwipsixlowpan_SRCS}
+ ${lwipppp_SRCS}
+)
+
+# LWIPAPPFILES: All LWIP APPs
+set(lwipallapps_SRCS
+ ${lwipsnmp_SRCS}
+ ${lwiphttp_SRCS}
+ ${lwipiperf_SRCS}
+ ${lwipsmtp_SRCS}
+ ${lwipsntp_SRCS}
+ ${lwipmdns_SRCS}
+ ${lwipnetbios_SRCS}
+ ${lwiptftp_SRCS}
+ ${lwipmqtt_SRCS}
+ ${lwipmbedtls_SRCS}
+)
diff --git a/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/Makefile b/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/Makefile
new file mode 100644
index 00000000..e347e54e
--- /dev/null
+++ b/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/Makefile
@@ -0,0 +1,55 @@
+include Makefile.lwip
+include Makefile.adapter
+include Makefile.config
+
+COMPILER=
+ARCHIVER=
+CP=cp
+COMPILER_FLAGS=
+EXTRA_COMPILER_FLAGS=
+EXTRA_ARCHIVE_FLAGS=rc
+LIB=liblwip4.a
+
+ifeq ($(CONFIG_PROCESSOR_LITTLE_ENDIAN), y)
+ ENDIAN_FLAGS=-DPROCESSOR_LITTLE_ENDIAN
+else
+ ENDIAN_FLAGS=-DPROCESSOR_BIG_ENDIAN
+endif
+
+CC_FLAGS = $(COMPILER_FLAGS)
+CC_FLAGS += $(ENDIAN_FLAGS)
+
+RELEASEDIR=../../../lib
+INCLUDEDIR=../../../include
+INCLUDES=-I${INCLUDEDIR} -I$(LWIP_DIR)/src/include/ -I$(LWIP_DIR)/src/include/lwip -I$(PORT)/include
+OBJ_DIR = .
+LWIP_OBJ1 = $(LWIP_OBJS) $(ADAPTER_OBJS)
+VPATH = $(LWIP_DIR)/src/core/ $(LWIP_DIR)/src/core/ipv4/ $(LWIP_DIR)/src/core/ipv6 \
+ $(LWIP_DIR)/src/netif $(LWIP_DIR)/src/api $(PORT) $(PORT)/netif
+INCLUDEFILES = $(ADAPTER_INCLUDES)
+
+libs: liblwip4.a
+
+liblwip4.a: print_msg_lwip $(LWIP_OBJ1)
+ $(ARCHIVER) $(EXTRA_ARCHIVE_FLAGS) ${RELEASEDIR}/${LIB} $(LWIP_OBJ1)
+
+print_msg_lwip:
+ @echo "Compiling lwip src and adapter files"
+
+.PHONY: include
+include: liblwip4_includes
+
+liblwip4_includes:
+ ${CP} -r $(LWIP_DIR)/src/include/lwip ${INCLUDEDIR}
+ ${CP} -r $(LWIP_DIR)/src/include/netif ${INCLUDEDIR}
+ ${CP} -r $(LWIP_DIR)/contrib/ports/xilinx/include/netif ${INCLUDEDIR}
+ ${CP} -r $(LWIP_DIR)/contrib/ports/xilinx/include/arch ${INCLUDEDIR}
+ ${CP} -r $(LWIP_DIR)/contrib/ports/xilinx/include/lwipopts.h ${INCLUDEDIR}
+ ${CP} -r $(LWIP_DIR)/contrib/ports/xilinx/include/xlwipconfig.h ${INCLUDEDIR}
+
+clean:
+ rm -rf ${LWIP_OBJ1}
+ rm -rf ${RELEASEDIR}/${LIB}
+
+$(OBJ_DIR)/%.o: $(OBJ_DIR)/%.c $(INCLUDEFILES)
+ $(GCC_COMPILER) $(CC_FLAGS) $(EXTRA_COMPILER_FLAGS) $(INCLUDES) -c $< -o $@
diff --git a/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/Makefile.adapter b/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/Makefile.adapter
new file mode 100644
index 00000000..8d9516d4
--- /dev/null
+++ b/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/Makefile.adapter
@@ -0,0 +1,82 @@
+include Makefile.config
+
+PORT = lwip-2.2.0/contrib/ports/xilinx
+
+COMMON_SRCS = $(PORT)/sys_arch_raw.c \
+ $(PORT)/netif/xpqueue.c \
+ $(PORT)/netif/xadapter.c \
+ $(PORT)/netif/xtopology_g.c
+
+ADAPTER_INCLUDES = $(PORT)/include/arch/cc.h \
+ $(PORT)/include/arch/cpu.h \
+ $(PORT)/include/arch/perf.h \
+ $(PORT)/include/arch/sys_arch.h \
+ $(PORT)/include/netif/xadapter.h \
+ $(PORT)/include/netif/xaxiemacif.h \
+ $(PORT)/include/netif/xemacliteif.h \
+ $(PORT)/include/netif/xemacpsif.h \
+ $(PORT)/include/netif/xlltemacif.h \
+ $(PORT)/include/netif/xpqueue.h \
+ $(PORT)/include/netif/xtopology.h \
+ $(PORT)/netif/xaxiemacif_fifo.h \
+ $(PORT)/netif/xaxiemacif_hw.h \
+ $(PORT)/netif/xemacpsif_hw.h \
+ $(PORT)/include/lwipopts.h \
+ $(PORT)/include/xlwipconfig.h
+
+EMACLITE_SRCS = $(PORT)/netif/xemacliteif.c
+
+TEMAC_SRCS = $(PORT)/netif/xlltemacif_hw.c \
+ $(PORT)/netif/xlltemacif_physpeed.c \
+ $(PORT)/netif/xlltemacif_fifo.c \
+ $(PORT)/netif/xlltemacif_sdma.c \
+ $(PORT)/netif/xlltemacif.c
+
+AXI_ETHERNET_SRCS = $(PORT)/netif/xaxiemacif_hw.c \
+ $(PORT)/netif/xaxiemacif_physpeed.c \
+ $(PORT)/netif/xaxiemacif.c
+
+AXI_ETHERNET_FIFO_SRCS = $(PORT)/netif/xaxiemacif_fifo.c
+AXI_ETHERNET_DMA_SRCS = $(PORT)/netif/xaxiemacif_dma.c
+AXI_ETHERNET_MCDMA_SRCS = $(PORT)/netif/xaxiemacif_mcdma.c
+
+PS_ETHERNET_SRCS = $(PORT)/netif/xemacpsif_hw.c \
+ $(PORT)/netif/xemacpsif_physpeed.c \
+ $(PORT)/netif/xemacpsif.c \
+ $(PORT)/netif/xemacpsif_dma.c
+
+SYSARCH_SOCKET_SRCS = $(PORT)/sys_arch.c
+
+ADAPTER_SRCS = $(COMMON_SRCS)
+
+ifeq ($(CONFIG_SOCKETS), y)
+ADAPTER_SRCS += $(SYSARCH_SOCKET_SRCS)
+endif
+
+ifeq ($(CONFIG_XEMACLITE), y)
+ADAPTER_SRCS += $(EMACLITE_SRCS)
+endif
+
+ifeq ($(CONFIG_XLLTEMAC), y)
+ADAPTER_SRCS += $(TEMAC_SRCS)
+endif
+
+ifeq ($(CONFIG_AXI_ETHERNET), y)
+ADAPTER_SRCS += $(AXI_ETHERNET_SRCS)
+endif
+ifeq ($(CONFIG_AXI_ETHERNET_FIFO), y)
+ADAPTER_SRCS += $(AXI_ETHERNET_FIFO_SRCS)
+endif
+ifeq ($(CONFIG_AXI_ETHERNET_DMA), y)
+ADAPTER_SRCS += $(AXI_ETHERNET_DMA_SRCS)
+endif
+ifeq ($(CONFIG_AXI_ETHERNET_MCDMA), y)
+ADAPTER_SRCS += $(AXI_ETHERNET_MCDMA_SRCS)
+endif
+
+ifeq ($(CONFIG_PS_ETHERNET), y)
+ADAPTER_SRCS += $(PS_ETHERNET_SRCS)
+endif
+
+ADAPTER_OBJS1 = $(ADAPTER_SRCS:%.c=%.o)
+ADAPTER_OBJS = $(notdir $(ADAPTER_OBJS1))
diff --git a/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/Makefile.config b/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/Makefile.config
new file mode 100644
index 00000000..465b1d31
--- /dev/null
+++ b/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/Makefile.config
@@ -0,0 +1,3 @@
+GCC_COMPILER=aarch64-none-elf-gcc
+CONFIG_PROCESSOR_LITTLE_ENDIAN=y
+CONFIG_PS_ETHERNET=y
diff --git a/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/Makefile.lwip b/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/Makefile.lwip
new file mode 100644
index 00000000..0fca1be6
--- /dev/null
+++ b/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/Makefile.lwip
@@ -0,0 +1,142 @@
+include Makefile.config
+
+LWIP_DIR = lwip-2.2.0
+
+CORE_SRCS = $(LWIP_DIR)/src/core/init.c \
+ $(LWIP_DIR)/src/core/def.c \
+ $(LWIP_DIR)/src/core/dns.c \
+ $(LWIP_DIR)/src/core/inet_chksum.c \
+ $(LWIP_DIR)/src/core/ip.c \
+ $(LWIP_DIR)/src/core/mem.c \
+ $(LWIP_DIR)/src/core/memp.c \
+ $(LWIP_DIR)/src/core/netif.c \
+ $(LWIP_DIR)/src/core/pbuf.c \
+ $(LWIP_DIR)/src/core/raw.c \
+ $(LWIP_DIR)/src/core/stats.c \
+ $(LWIP_DIR)/src/core/def.c \
+ $(LWIP_DIR)/src/core/timeouts.c \
+ $(LWIP_DIR)/src/core/sys.c \
+ $(LWIP_DIR)/src/netif/ethernet.c
+
+CORE_IPV4_SRCS = $(LWIP_DIR)/src/core/ipv4/ip4_addr.c \
+ $(LWIP_DIR)/src/core/ipv4/icmp.c \
+ $(LWIP_DIR)/src/core/ipv4/igmp.c \
+ $(LWIP_DIR)/src/core/ipv4/ip4.c \
+ $(LWIP_DIR)/src/core/ipv4/ip4_frag.c \
+ $(LWIP_DIR)/src/core/ipv4/etharp.c \
+ $(LWIP_DIR)/src/core/ipv4/autoip.c \
+ $(LWIP_DIR)/src/core/ipv4/acd.c
+
+CORE_IPV6_SRCS = $(LWIP_DIR)/src/core/ipv6/inet6.c \
+ $(LWIP_DIR)/src/core/ipv6/ip6_addr.c \
+ $(LWIP_DIR)/src/core/ipv6/ip6_frag.c \
+ $(LWIP_DIR)/src/core/ipv6/icmp6.c \
+ $(LWIP_DIR)/src/core/ipv6/ip6.c \
+ $(LWIP_DIR)/src/core/ipv6/dhcp6.c \
+ $(LWIP_DIR)/src/core/ipv6/ethip6.c \
+ $(LWIP_DIR)/src/core/ipv6/mld6.c \
+ $(LWIP_DIR)/src/core/ipv6/nd6.c
+
+CORE_TCP_SRCS = $(LWIP_DIR)/src/core/tcp.c \
+ $(LWIP_DIR)/src/core/tcp_in.c \
+ $(LWIP_DIR)/src/core/tcp_out.c
+
+CORE_DHCP_SRCS = $(LWIP_DIR)/src/core/ipv4/dhcp.c
+
+CORE_UDP_SRCS = $(LWIP_DIR)/src/core/udp.c
+
+# SNMPFILES: SNMPv2c agent
+CORE_SNMP_SRCS=$(LWIP_DIR)/src/apps/snmp/snmp_asn1.c \
+ $(LWIP_DIR)/src/apps/snmp/snmp_core.c \
+ $(LWIP_DIR)/src/apps/snmp/snmp_mib2.c \
+ $(LWIP_DIR)/src/apps/snmp/snmp_mib2_icmp.c \
+ $(LWIP_DIR)/src/apps/snmp/snmp_mib2_interfaces.c \
+ $(LWIP_DIR)/src/apps/snmp/snmp_mib2_ip.c \
+ $(LWIP_DIR)/src/apps/snmp/snmp_mib2_snmp.c \
+ $(LWIP_DIR)/src/apps/snmp/snmp_mib2_system.c \
+ $(LWIP_DIR)/src/apps/snmp/snmp_mib2_tcp.c \
+ $(LWIP_DIR)/src/apps/snmp/snmp_mib2_udp.c \
+ $(LWIP_DIR)/src/apps/snmp/snmp_msg.c \
+ $(LWIP_DIR)/src/apps/snmp/snmpv3.c \
+ $(LWIP_DIR)/src/apps/snmp/snmp_netconn.c \
+ $(LWIP_DIR)/src/apps/snmp/snmp_pbuf_stream.c \
+ $(LWIP_DIR)/src/apps/snmp/snmp_raw.c \
+ $(LWIP_DIR)/src/apps/snmp/snmp_scalar.c \
+ $(LWIP_DIR)/src/apps/snmp/snmp_table.c \
+ $(LWIP_DIR)/src/apps/snmp/snmp_threadsync.c \
+ $(LWIP_DIR)/src/apps/snmp/snmp_traps.c \
+ $(LWIP_DIR)/src/apps/snmp/snmpv3_mbedtls.c \
+ $(LWIP_DIR)/src/apps/snmp/snmpv3_dummy.c
+
+
+CORE_ARP_SRCS = $(LWIP_DIR)/src/netif/etharp.c
+
+API_SOCK_SRCS = $(LWIP_DIR)/src/api/api_lib.c \
+ $(LWIP_DIR)/src/api/api_msg.c \
+ $(LWIP_DIR)/src/api/err.c \
+ $(LWIP_DIR)/src/api/netbuf.c \
+ $(LWIP_DIR)/src/api/netdb.c \
+ $(LWIP_DIR)/src/api/netifapi.c \
+ $(LWIP_DIR)/src/api/sockets.c \
+ $(LWIP_DIR)/src/api/tcpip.c
+
+LWIP_INCLUDES = $(LWIP_DIR)/src/include/lwip/autoip.h \
+ $(LWIP_DIR)/src/include/lwip/icmp.h \
+ $(LWIP_DIR)/src/include/lwip/igmp.h \
+ $(LWIP_DIR)/src/include/lwip/inet.h \
+ $(LWIP_DIR)/src/include/lwip/inet_chksum.h \
+ $(LWIP_DIR)/src/include/lwip/ip.h \
+ $(LWIP_DIR)/src/include/lwip/ip_addr.h \
+ $(LWIP_DIR)/src/include/lwip/ip4_frag.h \
+ $(LWIP_DIR)/src/include/lwip/icmp6.h \
+ $(LWIP_DIR)/src/include/lwip/api.h \
+ $(LWIP_DIR)/src/include/lwip/arch.h \
+ $(LWIP_DIR)/src/include/lwip/debug.h \
+ $(LWIP_DIR)/src/include/lwip/def.h \
+ $(LWIP_DIR)/src/include/lwip/dhcp.h \
+ $(LWIP_DIR)/src/include/lwip/dhcp6.h \
+ $(LWIP_DIR)/src/include/lwip/dns.h \
+ $(LWIP_DIR)/src/include/lwip/err.h \
+ $(LWIP_DIR)/src/include/lwip/init.h \
+ $(LWIP_DIR)/src/include/lwip/mem.h \
+ $(LWIP_DIR)/src/include/lwip/memp.h \
+ $(LWIP_DIR)/src/include/lwip/netbuf.h \
+ $(LWIP_DIR)/src/include/lwip/netdb.h \
+ $(LWIP_DIR)/src/include/lwip/netif.h \
+ $(LWIP_DIR)/src/include/lwip/netifapi.h \
+ $(LWIP_DIR)/src/include/lwip/opt.h \
+ $(LWIP_DIR)/src/include/lwip/raw.h \
+ $(LWIP_DIR)/src/include/lwip/pbuf.h \
+ $(LWIP_DIR)/src/include/lwip/sio.h \
+ $(LWIP_DIR)/src/include/lwip/snmp.h \
+ $(LWIP_DIR)/src/include/lwip/sockets.h \
+ $(LWIP_DIR)/src/include/lwip/stats.h \
+ $(LWIP_DIR)/src/include/lwip/sys.h \
+ $(LWIP_DIR)/src/include/lwip/tcp.h \
+ $(LWIP_DIR)/src/include/lwip/tcpip.h \
+ $(LWIP_DIR)/src/include/lwip/timeouts.h \
+ $(LWIP_DIR)/src/include/lwip/udp.h \
+ $(LWIP_DIR)/src/include/lwip/acd.h \
+ $(LWIP_DIR)/src/include/netif/etharp.h \
+ $(LWIP_DIR)/src/include/netif/ppp/ppp_oe.h \
+ $(LWIP_DIR)/src/include/netif/slipif.h
+
+
+# create LWIP_SRCS based on configured options
+
+LWIP_SRCS = $(CORE_SRCS)
+
+# we always include ARP, IPv4, TCP and UDP sources
+LWIP_SRCS += $(CORE_ARP_SRCS)
+LWIP_SRCS += $(CORE_IPV4_SRCS)
+LWIP_SRCS += $(CORE_IPV6_SRCS)
+LWIP_SRCS += $(CORE_TCP_SRCS)
+LWIP_SRCS += $(CORE_UDP_SRCS)
+LWIP_SRCS += $(CORE_DHCP_SRCS)
+
+ifeq ($(CONFIG_SOCKETS), y)
+LWIP_SRCS += $(API_SOCK_SRCS)
+endif
+
+LWIP_OBJS1 = $(LWIP_SRCS:%.c=%.o)
+LWIP_OBJS = $(notdir $(LWIP_OBJS1))
diff --git a/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/lwip-2.2.0/BUILDING b/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/lwip-2.2.0/BUILDING
new file mode 100644
index 00000000..a2adc626
--- /dev/null
+++ b/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/lwip-2.2.0/BUILDING
@@ -0,0 +1,119 @@
+Building lwIP
+=============
+
+lwIP uses a CMake based build system.
+
+The CMake files in this project are designed to
+be included into your own CMake files. They are
+mainly variable definitions containing a list of
+source files and predefined static libraries to
+be linked against application code.
+
+1) lwIP sources:
+ src/Filelists.cmake provides file lists containing
+ the lwIP core library.
+ The file also contains two static libraries, lwipcore
+ and lwipallapps, where you can link your app against.
+ This is the file that is useful to all lwIP users.
+
+2) Example applications:
+ contrib/Filelists.cmake provides several file lists
+ containing the example applications.
+ The file also contains several static libraries
+ for these example apps.
+ This file is only useful for you, if you can use one
+ of the examples in your application, which is normally
+ not the case.
+
+3) OS/platform port:
+ Usually the OS port needs to be provided by the user.
+ If a port to Linux, Windows or MacOS is useful for
+ you, you can use
+ contrib/ports/{win32, unix}/Filelists.cmake
+ that contains file lists and libraries for
+ these operating systems.
+
+VARIABLES
+=========
+In all cases, you need to provide two variables.
+
+"LWIP_DIR" pointing to the lwIP directory
+Example:
+set(LWIP_DIR ${CMAKE_CURRENT_SOURCE_DIR}/externals/lwip)
+
+"LWIP_INCLUDE_DIRS" that contains the include base paths
+- for lwIP itself (${LWIP_DIR}/src/include)
+- for lwIP contrib if you use it (${LWIP_DIR}/contrib)
+- to a directory containing an OS port
+- to a directory containing lwipopts.h
+
+Example:
+set (LWIP_INCLUDE_DIRS
+ "${LWIP_DIR}/src/include"
+ "${LWIP_DIR}/contrib"
+ "${LWIP_DIR}/contrib/ports/unix/port/include"
+ "${LWIP_DIR}/contrib/examples/example_app"
+)
+
+Putting it all together
+=======================
+To get a working application, your CMake system
+needs to provide the variables described above, e.g.
+set (LWIP_DIR )
+set (LWIP_INCLUDE_DIRS
+ "${LWIP_DIR}/src/include"
+ "${LWIP_DIR}/contrib"
+ "/include"
+ ""
+)
+
+You may add some defines:
+set (LWIP_DEFINITIONS LWIP_DEBUG=1)
+
+Then include the filelists you need:
+include(${LWIP_DIR}/src/Filelists.cmake)
+include(${LWIP_DIR}/contrib/Filelists.cmake)
+
+Then, declare you executable:
+add_executable(my_app )
+
+Add lwIP include dirs to your app:
+target_include_directories(my_app PRIVATE ${LWIP_INCLUDE_DIRS})
+
+Link your app against the lwIP libs from the filelists you need:
+target_link_libraries(my_app lwipcontribapps lwipallapps lwipcore)
+
+Working example
+===============
+Working build examples can be found in the
+contrib/ports/{win32, unix}/example_app
+subdirectory.
+To use them, create a build directory and call cmake with
+the lwIP root dir:
+
+- mkdir build
+- cd build
+- cmake ..
+- cmake --build .
+
+The CMakeLists.txt will autoselect the correct port
+for your system (supported: Linux, Windows, Darwin).
+
+To configure the example app to your needs, you need to copy the file
+ contrib/examples/example_app/lwipcfg.h.example
+to
+ contrib/examples/example_app/lwipcfg.h
+and edit to your needs.
+
+Makefile based build system
+===========================
+lwIP also maintains file lists for Makefile-based
+build systems. Look for Filelists.mk files
+in the source tree. We try to maintain them,
+but lwIP's mainly focused build system is CMake.
+
+MS Visual Studio
+================
+lwIP also provides basic support for MSVS in the win32 port
+folder under 'msvc'. We try to maintain these files,
+but lwIP's mainly focused build system is CMake.
diff --git a/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/lwip-2.2.0/CHANGELOG b/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/lwip-2.2.0/CHANGELOG
new file mode 100644
index 00000000..4a4c4c3b
--- /dev/null
+++ b/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/lwip-2.2.0/CHANGELOG
@@ -0,0 +1,4635 @@
+HISTORY
+ * These are only the most important changes. For a full list, use git log:
+ http://git.savannah.nongnu.org/cgit/lwip.git
+
+(git master)
+
+ * [Enter new changes just after this line - do not remove this line]
+
+(STABLE-2.2.0):
+
+ 2018-10-02: Dirk Ziegelmeier
+ * Integrate contrib repository into main lwIP repository
+
+ ++ New features:
+
+ 2022-04-05: David Cermak
+ * contrib/addons: Add example of using DHCP extra options hooks
+
+ 2023-05-11: David Cermak
+ * dhcp: Add macro for appending extra client's request options
+
+ 2023-05-11: xueyunfei
+ * dhcp: Enable custom config for timeouts, thresholds, backoff time
+
+ 2021-04-26
+ * test/unit: added more unit tests
+
+ 2020-03-27: Simon Goldschmidt
+ * test/fuzz: improve fuzz test
+
+ 2019-12-11: Simon Goldschmidt
+ * ip6addr_aton: support scoped address strings (via '%')
+
+ 2019-08-28: Joan Lledó
+ * Contrib: Add kFreeBSD to the Unix port
+
+ 2019-07-14: Joan Lledó
+ * Unix port: improve support for the Hurd
+
+ ++ Bugfixes:
+
+ 2019-12-11: David Girault
+ * altcp_tls: support for saving/restoring session information
+
+ 2018-11-16: Craig McQUeen
+ * dns: allow a DNS look-up with a trailing dot in the name
+
+ 2018-10-19: Timmy Brolin
+ * Add outgoing VLAN PCP support for Ethernet level QoS
+
+ 2018-10-08: Ben Wijen
+ * apps/tftp: added TFTP client
+
+ 2018-10-04: Jasper Verschueren
+ * Implement IPv4 ACD (Address Conflict Detection)
+
+ 2023-05-10
+ * altcp_tls_mbedtls: note which version of mbedtls we are compatible to
+ * altcp_tls_mbedtls: multiple compatibility fixes
+
+ 2023-04-26: Jan Breuer, Harrold Spier, Ognjen Bjelica, Dirk Ziegelmeier, Simon Goldschmidt
+ * apps/snmp: multiple fixes and improvements to snmp
+
+ 2022-01-12: Simon Goldschmidt
+ * httpd: clean up custom file handling
+
+ 2021-11-25: quanjia
+ * ping: fix sockaddr len in ping_send() for PING_USE_SOCKETS==1
+
+ 2021-11-12: Bas Prins
+ * http_client: reset timeout when receiving data
+
+ 2020-07-07: Erik Ekman
+ * Rename IP and Ethernet equality checkers from _cmp to _eq
+
+ 2020-03-05: Simon Goldschmidt
+ * tcp: tighten up checks for received SYN
+
+ 2020-01-30: Simon Goldschmidt, David Girault, David J. Fiddes, Tom Ferrin
+ * apps/sntp: multiple fixes and improvements for sntp
+
+ 2020-01-30: Simon Goldschmidt
+ * ip_forward: fix IPv4 forwarding with multiple netifs/offloading
+
+ 2019-06-11: David Girault, Giuseppe Modugno
+ * apps/mqtt: multiple fixes for mqtt
+
+ 2019-05-19: Joan Lledó
+ * New function tcpip_callback_wait()
+ Call a function inside the tcpip thread and block the calling thread until
+ the callback finishes
+
+ 2018-08-15: Jasper Verschueren, David Girault, Our Air Quality
+ * apps/mdns: greatly improved the mdns client
+
+(STABLE-2.1.2):
+
+ ++ Bugfixes:
+
+ 2018-11-21: Jens Nielsen
+ * netbiosns.c: fix expecting too large packet (bug #55069)
+
+ 2018-11-19: Dirk Ziegelmeier
+ * smtp.c: fix compiling with strict C compatibility because of strnlen (bug #55034)
+
+ 2018-11-12: Simon Goldschmidt
+ * tcp.c: fix overflow check in tcp_recved triggering invalid assertion (bug #55015)
+
+ 2018-11-12: Simon Goldschmidt
+ * tcp.c: fix a bug in sending RST segments (sent from port 0)
+
+(STABLE-2.1.1):
+
+ ++ Bugfixes:
+
+ 2018-11-01: Joan Lledó
+ * sockets.c: fix bad assertion in lwip_poll_dec_sockets_used() (bug #54933)
+
+ 2018-11-01: Dirk Ziegelmeier
+ * ip4.c: don't send 127.* to default netif (bug #54670)
+
+ 2018-10-23: David Girault
+ * altcp_tls_mbedtls.c: fix use-after free (bug #54774)
+
+ 2018-10-23: Ognjen Bjelica, Dirk Ziegelmeier
+ * snmp_scalar.c: Avoid NULL pointer dereference (bug #54886)
+
+ 2018-10-23: Simon Goldschmidt
+ * Fix missing standard includes in multiple files
+
+ 2018-10-17: Ivan Warren
+ * def.h: fix casting htonX and ntohX to u16_t (bug #54850)
+
+ 2018-10-12: Simon Goldschmidt
+ * Revert "tcp_abandon: no need to buffer pcb->local_port" (fix that source port was 0 for RST
+ called when aborting a connection)
+
+ 2018-10-11: Jonas Rabenstein
+ * tcp.c: tcp_recved: check for overflow and warn about too big values (patch #9699)
+
+ 2018-10-06: Joan Lledó
+ * sockets.c: alloc_socket(): Check for LWIP_SOCKET_POLL when setting select-
+ related variables (patch #9696)
+
+ 2018-10-04: Spencer
+ * tcp.c: Update prev pointer when skipping entries in tcp_slowtmr (patch #9694)
+
+ 2018-09-27: Martine Lenders
+ * lowpan6.c: Fix IEEE 802.15.4 address setting (bug #54749)
+
+(STABLE-2.1.0):
+
+ ++ New features:
+
+ 2018-06-17: Simon Goldschmidt
+ * lwiperf: implemented iPerf client mode
+
+ 2018-04-23: Dirk Ziegelmeier
+ * added cmake build files
+
+ 2018-03-04: Ray Abram
+ * netbios responder: respond to '*' queries
+
+ 2018-02-23: Benjamin Aigner
+ * 6lowpan: add 6lowpan-over-BLE netif (based on existing 6lowpan netif)
+
+ 2018-02-22: Simon Goldschmidt
+ * ipv6: add support for stateless DHCPv6 (to get DNS servers in SLAAC nets)
+
+ 2018-02-16: Simon Goldschmidt
+ * add raw API http(s) client (with proxy support)
+
+ 2018-02-01: Simon Goldschmidt
+ * tcp: add hooks to implement additional socket options
+
+ 2018-02-01: Simon Goldschmidt
+ * tcp: add hooks to implement tcp md5 signatures or similar (see contrib/addons for an example)
+
+ 2018-01-05: Simon Goldschmidt
+ * Added sys_mbox_trypost_fromisr() and tcpip_callbackmsg_trycallback_fromisr()
+ These can be used to post preallocated messages from an ISR to the tcpip thread
+ (e.g. when using FreeRTOS)
+
+ 2018-01-02: Dirk Ziegelmeier
+ * task #14780: Add debug helper asserts to ensure threading/locking requirements are met
+
+ 2017-11-21: Simon Goldschmidt
+ * task #14600: tcp_alloc(): kill TF_CLOSEPEND connections before other ESTABLISHED
+
+ 2017-11-21: Simon Goldschmidt
+ * makefsdata: added option "-ssi:" to control SSI tag checking/insertion
+ through a list of filenames, not by checking the file extension at runtime
+
+ 2017-11-20: Joel Cunningham
+ * netconn: add LWIP_HOOK_NETCONN_EXTERNAL_RESOLVE to use external DNS resolver (patch #9427)
+
+ 2017-11-14: Joel Cunningham
+ * netifapi: Add thread safe ARP cache APIs (task #14724)
+
+ 2017-11-06: Axel Lin
+ * TCP: kill existing connections with a LOWER priority than the one currently being opened.
+ Previous implementations also kill existing connections of the SAME priority.
+
+ 2017-09-21: Kalle Olavi Niemitalo
+ * sockets: add poll() implementation (patch #9450)
+
+ 2017-09-10: Joel Cunningham
+ * sockets: add readv() implementation (task #14610)
+
+ 2017-08-04: Simon Goldschmidt
+ * Clean up DHCP a bit: no need keep msg_out and msg_in as members in struct
+ dhcp - they are used in a call stack only (p_out and options_out_len as well)
+
+ 2017-08-04: Simon Goldschmidt
+ * pbuf: split pbuf_header(s16_t) into pbuf_add_header(size_t) and
+ pbuf_remove_header(size_t)
+
+ 2017-07-20: Douglas
+ * sys: deprecate sys_arch_sem_wait and sys_arch_mbox_fetch returning the
+ time waited rather they are now defined to return != SYS_ARCH_TIMEOUT
+ on success.
+
+ 2017-07-03: Jakub Schmidtke
+ * tcp: added support for sending TCP SACKs
+
+ 2017-06-20: Joel Cunningham
+ * netconn/netdb: added core locking support to netconn_gethostbyname (task #14523)
+
+ 2017-04-25: Simon Goldschmidt
+ * dhcp: added two hooks for adding and parsing user defined DHCP options
+
+ 2017-04-25: Joel Cunningham
+ * sockets: added recvmsg for UDP (together with CMSG and IP_PKTINFO) (task #14247)
+
+ 2017-04-20: Joel Cunningham
+ * tcp: added Appropriate Byte Counting support (task #14128)
+
+ 2017-04-11: Simon Goldschmidt
+ * netconn/sockets: remove fatal error handling, fix asynchronous error handling,
+ ensure data before RST can be received
+
+ 2017-03-30: Simon Goldschmidt
+ * added "application layered TCP" connection API (altcp) for seamless integration
+ of TLS or proxy connections
+
+ 2017-03-09: Simon Goldschmidt
+ * sockets: add recvmsg for TCP
+
+ 2017-03-02: Joel Cunningham
+ * netconn/sockets: vectorize netconn_write for TCP, treating a vectored I/O write
+ atomically in regards to TCP segmentation (patch #8882)
+
+ 2017-03-02: Simon Goldschmidt
+ * netconn: added nonblocking accept/recv to netconn API (task #14396)
+
+ 2017-02-28: Simon Goldschmidt
+ * Added LWIP_SINGLE_NETIF for small targets with only one netif
+
+ 2017-02-10: David van Moolenbroek
+ * Implement UDP and RAW multicast support for IPv6 (core API, not netconn/sockets)
+
+ 2017-02-04: David van Moolenbroek
+ * IPv6 scopes support
+
+ 2017-01-20: Joel Cunningham
+ * sockets: add interface name/index APIs (task #14314)
+
+ 2017-01-08: David van Moolenbroek
+ * Extensions to RAW API (patch #9208)
+ - Connected RAW PCBs
+ - Add raw_sendto_if_src()
+ - Support IP_HDRINCL socket option
+
+ ++ Bugfixes:
+
+ 2018-06-19: Simon Goldschmidt
+ * tcp: fix RTO timer not working if link is down
+
+ 2018-06-15: Sylvain Rochet
+ * ppp: multiple smaller bugfixes
+
+ 2018-05-17: Simon Goldschmidt
+ * etharp: arp table can now be bigger than 127 entries
+
+ 2018-04-25: Jens Nielsen
+ * tftp server: correctly handle retransmissions
+
+ 2018-04-18: Simon Goldschmidt
+ sockets: fix race conditions when closing full-duplex sockets
+
+ 2018-03-09: Simon Goldschmidt
+ * 6lowpan: fix to work against contiki; added ZigBee encapsulation netif for tests
+
+ 2018-02-04: Simon Goldschmidt
+ * sockets: fix inconsistencies on close (inconsistent error codes, double FIN)
+
+ 2018-01-05: Dirk Ziegelmeier
+ * Fix bug #52748: the bug in timeouts.c by reimplementing timer logic to use
+ absolute instead of relative timeout values
+
+ 2017-12-31: Dirk Ziegelmeier
+ * Fix bug #52704: DHCP and bad OFFER: Stop timeout only if offer is accepted
+
+ 2017-11-08: Joel Cunningham
+ * netif: ensure link and admin states are up in issue reports (bug #52353)
+
+ 2017-09-12: David Lockyer
+ * select: allocate select_cb from memp for LWIP_MPU_COMPATIBLE = 1 (bug #51990)
+
+ 2017-09-11: Simon Goldschmidt
+ * tcp_in.c: fix bug #51937 (leaking tcp_pcbs on passive close with unacked data)
+
+ 2017-08-11: Joel Cunningham
+ * lwip_itoa: fix converting the number 0 (previously converted to '\0') (bug #51729)
+
+ 2017-08-08: Dirk Ziegelmeier
+ * ip4_route_src: parameter order is reversed: ip4_route_src(dest, src) -> ip4_route_src(src, dest)
+ to make parameter order consistent with other ip*_route*() functions
+ Same also applies to LWIP_HOOK_IP4_ROUTE_SRC() parameter order.
+
+ 2017-08-04: Joel Cunningham
+ * tcp: re-work persist timer to fully close window (details in bug #50837)
+
+ 2017-07-26: Simon Goldschmidt
+ * snmp_msg.c: fix bug #51578 (SNMP failed to decode some values on non 32bit platforms)
+
+ 2017-07-20: Simon Goldschmidt
+ * compatibility headers: moved from 'src/include/posix' to 'src/include/compat/posix',
+ 'src/include/compat/stdc' etc.
+
+ 2017-05-09: Joel Cunningham
+ * tcp: add zero-window probe timeout (bug #50837)
+
+ 2017-04-11: Simon Goldschmidt
+ * sockets.c: task #14420 (Remove sys_sem_signal from inside SYS_ARCH_PROTECT
+ crit section) done for LWIP_TCPIP_CORE_LOCKING==1
+
+ 2017-02-24: Simon Goldschmidt
+ * sockets.c: fixed close race conditions in lwip_select (for LWIP_NETCONN_FULLDUPLEX)
+
+ 2017-02-24: Simon Goldschmidt
+ * sockets.c: fixed that select ignored invalid/not open sockets in the fd_sets (bug #50392)
+
+ 2017-01-11: David van Moolenbroek
+ * Lots of IPv6 related fixes and improvements
+
+(STABLE-2.0.3)
+
+ ++ Bugfixes:
+
+ 2017-09-11: Simon Goldschmidt
+ * tcp_in.c: fix bug #51937 (leaking tcp_pcbs on passive close with unacked data)
+
+ 2017-08-02: Abroz Bizjak/Simon Goldschmidt
+ * multiple fixes in IPv4 reassembly (leading to corrupted datagrams received)
+
+ 2017-03-30: Simon Goldschmidt
+ * dhcp.c: return ERR_VAL instead of asserting on offset-out-of-pbuf
+
+ 2017-03-23: Dirk Ziegelmeier
+ * dhcp.h: fix bug #50618 (dhcp_remove_struct() macro does not work)
+
+(STABLE-2.0.2)
+
+ ++ New features:
+
+ 2017-02-10: Dirk Ziegelmeier
+ * Implement task #14367: Hooks need a better place to be defined:
+ We now have a #define for a header file name that is #included in every .c
+ file that provides hooks.
+
+ 2017-02-10: Simon Goldschmidt
+ * tcp_close does not fail on memory error (instead, FIN is sent from tcp_tmr)
+
+ ++ Bugfixes:
+
+ 2017-03-08
+ * tcp: do not keep sending SYNs when getting ACKs
+
+ 2017-03-08: Joel Cunningham
+ * tcp: Initialize ssthresh to TCP_SND_BUF (bug #50476)
+
+ 2017-03-01: Simon Goldschmidt
+ * httpd: LWIP_HTTPD_POST_MANUAL_WND: fixed double-free when httpd_post_data_recved
+ is called nested from httpd_post_receive_data() (bug #50424)
+
+ 2017-02-28: David van Moolenbroek/Simon Goldschmidt
+ * tcp: fixed bug #50418: LWIP_EVENT_API: fix invalid calbacks for SYN_RCVD pcb
+
+ 2017-02-17: Simon Goldschmidt
+ * dns: Improved DNS_LOCAL_HOSTLIST interface (bug #50325)
+
+ 2017-02-16: Simon Goldschmidt
+ * LWIP_NETCONN_FULLDUPLEX: fixed shutdown during write (bug #50274)
+
+ 2017-02-13: Simon Goldschmidt/Dirk Ziegelmeier
+ * For tiny targtes, LWIP_RAND is optional (fix compile time checks)
+
+ 2017-02-10: Simon Goldschmidt
+ * tcp: Fixed bug #47485 (tcp_close() should not fail on memory error) by retrying
+ to send FIN from tcp_fasttmr
+
+ 2017-02-09: Simon Goldschmidt
+ * sockets: Fixed bug #44032 (LWIP_NETCONN_FULLDUPLEX: select might work on
+ invalid/reused socket) by not allowing to reallocate a socket that has
+ "select_waiting != 0"
+
+ 2017-02-09: Simon Goldschmidt
+ * httpd: Fixed bug #50059 (httpd LWIP_HTTPD_SUPPORT_11_KEEPALIVE vs.
+ LWIP_HTTPD_KILL_OLD_ON_CONNECTIONS_EXCEEDED)
+
+ 2017-02-08: Dirk Ziegelmeier
+ * Rename "IPv6 mapped IPv4 addresses" to their correct name from RFC4191:
+ "IPv4-mapped IPv6 address"
+
+ 2017-02-08: Luc Revardel
+ * mld6.c: Fix bug #50220 (mld6_leavegroup does not send ICMP6_TYPE_MLD, even
+ if last reporter)
+
+ 2017-02-08: David van Moolenbroek
+ * ip6.c: Patch #9250: fix source substitution in ip6_output_if()
+
+ 2017-02-08: Simon Goldschmidt
+ * tcp_out.c: Fixed bug #50090 (last_unsent->oversize_left can become wrong value
+ in tcp_write error path)
+
+ 2017-02-02: Dirk Ziegelmeier
+ * Fix bug #50206: UDP Netconn bind to IP6_ADDR_ANY fails
+
+ 2017-01-18: Dirk Ziegelmeier
+ * Fix zero-copy RX, see bug bug #50064. PBUF_REFs were not supported as ARP requests.
+
+ 2017-01-15: Axel Lin, Dirk Ziegelmeier
+ * minor bug fixes in mqtt
+
+ 2017-01-11: Knut Andre Tidemann
+ * sockets/netconn: fix broken default ICMPv6 handling of checksums
+
+(STABLE-2.0.1)
+
+ ++ New features:
+
+ 2016-12-31: Simon Goldschmidt
+ * tcp.h/.c: added function tcp_listen_with_backlog_and_err() to get the error
+ reason when listening fails (bug #49861)
+
+ 2016-12-20: Erik Andersen
+ * Add MQTT client
+
+ 2016-12-14: Jan Breuer:
+ * opt.h, ndc.h/.c: add support for RDNSS option (as per RFC 6106)
+
+ 2016-12-14: David van Moolenbroek
+ * opt.h, nd6.c: Added LWIP_HOOK_ND6_GET_GW()
+
+ 2016-12-09: Dirk Ziegelmeier
+ * ip6_frag.c: Implemented support for LWIP_NETIF_TX_SINGLE_PBUF
+
+ 2016-12-09: Simon Goldschmidt
+ * dns.c: added one-shot multicast DNS queries
+
+ 2016-11-24: Ambroz Bizjak, David van Moolenbroek
+ * tcp_out.c: Optimize passing contiguous nocopy buffers to tcp_write (bug #46290)
+
+ 2016-11-16: Dirk Ziegelmeier
+ * sockets.c: added support for IPv6 mapped IPv4 addresses
+
+ ++ Bugfixes:
+
+ 2016-12-16: Thomas Mueller
+ * api_lib.c: fixed race condition in return value of netconn_gethostbyname()
+ (and thus also lwip_gethostbyname/_r() and lwip_getaddrinfo())
+
+ 2016-12-15: David van Moolenbroek
+ * opt.h, tcp: added LWIP_HOOK_TCP_ISN() to implement less predictable initial
+ sequence numbers (see contrib/addons/tcp_isn for an example implementation)
+
+ 2016-12-05: Dirk Ziegelmeier
+ * fixed compiling with IPv4 disabled (IPv6 only case)
+
+ 2016-11-28: Simon Goldschmidt
+ * api_lib.c: fixed bug #49725 (send-timeout: netconn_write() can return
+ ERR_OK without all bytes being written)
+
+ 2016-11-28: Ambroz Bizjak
+ * tcpi_in.c: fixed bug #49717 (window size in received SYN and SYN-ACK
+ assumed scaled)
+
+ 2016-11-25: Simon Goldschmidt
+ * dhcp.c: fixed bug #49676 (Possible endless loop when parsing dhcp options)
+
+ 2016-11-23: Dirk Ziegelmeier
+ * udp.c: fixed bug #49662: multicast traffic is now only received on a UDP PCB
+ (and therefore on a UDP socket/netconn) when the PCB is bound to IP_ADDR_ANY
+
+ 2016-11-16: Dirk Ziegelmeier
+ * *: Fixed dual-stack behaviour, IPv6 mapped IPv4 support in socket API
+
+ 2016-11-14: Joel Cunningham
+ * tcp_out.c: fixed bug #49533 (start persist timer when unsent seg can't fit
+ in window)
+
+ 2016-11-16: Roberto Barbieri Carrera
+ * autoip.c: fixed bug #49610 (sometimes AutoIP fails to reuse the same address)
+
+ 2016-11-11: Dirk Ziegelmeier
+ * sockets.c: fixed bug #49578 (dropping multicast membership does not work
+ with LWIP_SOCKET_OFFSET)
+
+(STABLE-2.0.0)
+
+ ++ New features:
+
+ 2016-07-27: Simon Goldschmidt
+ * opt.h, timeouts.h/.c: added LWIP_TIMERS_CUSTOM to override the default
+ implementation of timeouts
+
+ 2016-07-xx: Dirk Ziegelmeier
+ * Large overhaul of doxygen documentation
+
+ 2016-04-05: Simon Goldschmidt
+ * timers.h/.c: prepare for overriding current timeout implementation: all
+ stack-internal caclic timers are avaliable in the lwip_cyclic_timers array
+
+ 2016-03-23: Simon Goldschmidt
+ * tcp: call accept-callback with ERR_MEM when allocating a pcb fails on
+ passive open to inform the application about this error
+ ATTENTION: applications have to handle NULL pcb in accept callback!
+
+ 2016-02-22: Ivan Delamer
+ * Initial 6LoWPAN support
+
+ 2016-02-XX to 2016-03-XX: Dirk Ziegelmeier
+ * Cleanup TCPIP thread sync methods in a way that it is possibe to use them
+ in arbitrary code that needs things to be done in TCPIP thread. Used to
+ decouple netconn, netif, ppp and 6LoWPAN from LWIP core.
+
+ 2016-02-XX: Dirk Ziegelmeier
+ * Implement dual-stack support in RAW, UDP and TCP. Add new IP address
+ type IPADDR_ANY_TYPE for this. Netconn/Socket API: Dual-stack is
+ automatically supported when an IPv6 netconn/socket is created.
+
+ 2015-12-26: Martin Hentschel and Dirk Ziegelmeier
+ * Rewrite SNMP agent. SNMPv2c + MIB compiler.
+
+ 2015-11-12: Dirk Ziegelmeier
+ * Decouple SNMP stack from lwIP core and move stack to apps/ directory.
+ Breaking change: Users have to call snmp_init() now!
+
+ 2015-11-12: Dirk Ziegelmeier
+ * Implement possibility to declare private memory pools. This is useful to
+ decouple some apps from the core (SNMP stack) or make contrib app usage
+ simpler (httpserver_raw)
+
+ 2015-10-09: Simon Goldschmidt
+ * started to move "private" header files containing implementation details to
+ "lwip/priv/" include directory to seperate the API from the implementation.
+
+ 2015-10-07: Simon Goldschmidt
+ * added sntp client as first "supported" application layer protocol implementation
+ added 'apps' folder
+
+ 2015-09-30: Dirk Ziegelmeier
+ * snmp_structs.h, mib_structs.c, mib2.c: snmp: fixed ugly inheritance
+ implementation by aggregating the "base class" (struct mib_node) in all
+ derived node classes to get more type-safe code
+
+ 2015-09-23: Simon Goldschmidt
+ * netif.h/.c, nd6.c: task #13729: Convert netif addresses (IPv4 & IPv6) to
+ ip_addr_t (so they can be used without conversion/temporary storage)
+
+ 2015-09-08: Dirk Ziegelmeier
+ * snmp: Separate mib2 counter/table callbacks from snmp agent. This both cleans
+ up the code and should allow integration of a 3rd party agent/mib2. Simple
+ counters are kept in MIB2_STATS, tree/table change function prototypes moved to
+ snmp_mib2.h.
+
+ 2015-09-03: Simon Goldschmidt
+ * opt.h, dns.h/.c: DNS/IPv6: added support for AAAA records
+
+ 2015-09-01: Simon Goldschmidt
+ * task #12178: hardware checksum capabilities can be configured per netif
+ (use NETIF_SET_CHECKSUM_CTRL() in your netif's init function)
+
+ 2015-08-30: Simon Goldschmidt
+ * PBUF_REF with "custom" pbufs is now supported for RX pbufs (see pcapif in
+ contrib for an example, LWIP_SUPPORT_CUSTOM_PBUF is required)
+
+ 2015-08-30: Simon Goldschmidt
+ * support IPv4 source based routing: define LWIP_HOOK_IP4_ROUTE_SRC to point
+ to a routing function
+
+ 2015-08-05: Simon Goldschmidt
+ * many files: allow multicast socket options IP_MULTICAST_TTL, IP_MULTICAST_IF
+ and IP_MULTICAST_LOOP to be used without IGMP
+
+ 2015-04-24: Simon Goldschmidt
+ * dhcp.h/c, autoip.h/.c: added functions dhcp/autoip_supplied_address() to
+ check for the source of address assignment (replacement for NETIF_FLAG_DHCP)
+
+ 2015-04-10: Simon Goldschmidt
+ * many files: task #13480: added LWIP_IPV4 define - IPv4 can be disabled,
+ leaving an IPv6-only stack
+
+ 2015-04-09: Simon Goldschmidt
+ * nearly all files: task #12722 (improve IPv4/v6 address handling): renamed
+ ip_addr_t to ip4_addr_t, renamed ipX_addr_t to ip_addr_t and added IP
+ version; ip_addr_t is used for all generic IP addresses for the API,
+ ip(4/6)_addr_t are only used internally or when initializing netifs or when
+ calling version-related functions
+
+ 2015-03-24: Simon Goldschmidt
+ * opt.h, ip4_addr.h, ip4.c, ip6.c: loopif is not required for loopback traffic
+ any more but passed through any netif (ENABLE_LOOPBACK has to be enabled)
+
+ 2015-03-23: Simon Goldschmidt
+ * opt.h, etharp.c: with ETHARP_TABLE_MATCH_NETIF== 1, duplicate (Auto)-IP
+ addresses on multiple netifs should now be working correctly (if correctly
+ addressed by routing, that is)
+
+ 2015-03-23: Simon Goldschmidt
+ * etharp.c: Stable etharp entries that are about to expire are now refreshed
+ using unicast to prevent unnecessary broadcast. Only if no answer is received
+ after 15 seconds, broadcast is used.
+
+ 2015-03-06: Philip Gladstone
+ * netif.h/.c: patch #8359 (Provide utility function to add an IPv6 address to
+ an interface)
+
+ 2015-03-05: Simon Goldschmidt
+ * netif.c, ip4.c, dhcp.c, autoip.c: fixed bug #37068 (netif up/down handling
+ is unclear): correclty separated administrative status of a netif (up/down)
+ from 'valid address' status
+ ATTENTION: netif_set_up() now always has to be called, even when dhcp/autoip
+ is used!
+
+ 2015-02-26: patch by TabascoEye
+ * netif.c, udp.h/.c: fixed bug #40753 (re-bind UDP pcbs on change of IP address)
+
+ 2015-02-22: chrysn, Simon Goldschmidt
+ * *.*: Changed nearly all functions taking 'ip(X)_addr_t' pointer to take
+ const pointers (changed user callbacks: raw_recv_fn, udp_recv_fn; changed
+ port callbacks: netif_output_fn, netif_igmp_mac_filter_fn)
+
+ 2015-02-19: Ivan Delamer
+ * netif.h, dhcp.c: Removed unused netif flag for DHCP. The preferred way to evaluate
+ if DHCP is active is through netif->dhcp field.
+
+ 2015-02-19: Ivan Delamer
+ * netif.h, slipif.c, ppp.c: Removed unused netif flag for point to point connections
+
+ 2015-02-18: Simon Goldschmidt
+ * api_lib.c: fixed bug #37958 "netconn API doesn't handle correctly
+ connections half-closed by peer"
+
+ 2015-02-18: Simon Goldschmidt
+ * tcp.c: tcp_alloc() prefers killing CLOSING/LAST_ACK over active connections
+ (see bug #39565)
+
+ 2015-02-16: Claudius Zingerli, Sergio Caprile
+ * opt.h, dhcp.h/.c: patch #8361 "Add support for NTP option in DHCP"
+
+ 2015-02-14: Simon Goldschmidt
+ * opt.h, snmp*: added support for write-access community and dedicated
+ community for sending traps
+
+ 2015-02-13: Simon Goldschmidt
+ * opt.h, memp.c: added hook LWIP_HOOK_MEMP_AVAILABLE() to get informed when
+ a memp pool was empty and an item is now available
+
+ 2015-02-13: Simon Goldschmidt
+ * opt.h, pbuf.h/.c, etharp.c: Added the option PBUF_LINK_ENCAPSULATION_HLEN to
+ allocate additional header space for TX on netifs requiring additional headers
+
+ 2015-02-12: chrysn
+ * timers.h/.c: introduce sys_timeouts_sleeptime (returns the time left before
+ the next timeout is due, for NO_SYS==1)
+
+ 2015-02-11: Nick van Ijzendoorn
+ * opt.h, sockets.h/c: patch #7702 "Include ability to increase the socket number
+ with defined offset"
+
+ 2015-02-11: Frederick Baksik
+ * opt.h, def.h, others: patch #8423 "arch/perf.h" should be made an optional item
+
+ 2015-02-11: Simon Goldschmidt
+ * api_msg.c, opt.h: started to implement fullduplex sockets/netconns
+ (note that this is highly unstable yet!)
+
+ 2015-01-17: Simon Goldschmidt
+ * api: allow enabling socket API without (public) netconn API - netconn API is
+ still used by sockets, but keeping it private (static) should allow better
+ compiler optimizations
+
+ 2015-01-16: Simon Goldschmidt
+ * tcp_in.c: fixed bug #20506 "Initial congestion window is very small" again
+ by implementing the calculation formula from RFC3390
+
+ 2014-12-10: Simon Goldschmidt
+ * api: added option LWIP_NETCONN_SEM_PER_THREAD to use a semaphore per thread
+ instead of using one per netconn and per select call
+
+ 2014-12-08: Simon Goldschmidt
+ * ip6.h: fixed bug #43778: IPv6 header version not set on 16-bit platform
+ (macro IP6H_VTCFL_SET())
+
+ 2014-12-08: Simon Goldschmidt
+ * icmp.c, ip4.c, pbuf.c, udp.c, pbuf.h: task #11472 Support PBUF_REF for RX
+ (IPv6 and IPv4/v6 reassembly might not work yet)
+
+ 2014-11-06: Simon Goldschmidt
+ * sockets.c/.h, init.c: lwip_socket_init() is not needed any more
+ -> compatibility define
+
+ 2014-09-16: Simon Goldschmidt
+ * dns.c, opt.h: reduced ram usage by parsing DNS responses in place
+
+ 2014-09-16: Simon Goldschmidt
+ * pbuf.h/.c: added pbuf_take_at() and pbuf_put_at()
+
+ 2014-09-15: Simon Goldschmidt
+ * dns.c: added source port randomization to make the DNS client more robust
+ (see bug #43144)
+
+ 2013-09-02: Simon Goldschmidt
+ * arch.h and many other files: added optional macros PACK_STRUCT_FLD_8() and
+ PACK_STRUCT_FLD_S() to prevent gcc 4 from warning about struct members that
+ do not need packing
+
+ 2013-08-19: Simon Goldschmidt
+ * netif.h: bug #42998: made NETIF_MAX_HWADDR_LEN overridable for some special
+ networks
+
+ 2013-03-17: Simon Goldschmidt (patch by Ghobad Emadi)
+ * opt.h, etharp.c: Added LWIP_HOOK_ETHARP_GET_GW to implement IPv4 routing with
+ multiple gateways
+
+ 2013-04-20: Fatih Asici
+ * opt.h, etharp.h/.c: patch #7993: Added support for transmitting packets
+ with VLAN headers via hook function LWIP_HOOK_VLAN_SET and to check them
+ via hook function LWIP_HOOK_VLAN_CHECK
+
+ 2014-02-20: Simon Goldschmidt (based on patch by Artem Pisarenko)
+ * patch #7885: modification of api modules to support FreeRTOS-MPU
+ (don't pass stack-pointers to other threads)
+
+ 2014-02-05: Simon Goldschmidt (patch by "xtian" and "alex_ab")
+ * patch #6537/#7858: TCP window scaling support
+
+ 2014-01-17: Jiri Engelthaler
+ * icmp, icmp6, opt.h: patch #8027: Completed HW checksuming for IPv4 and
+ IPv6 ICMP's
+
+ 2012-08-22: Sylvain Rochet
+ * New PPP stack for lwIP, developed in ppp-new branch.
+ Based from pppd 2.4.5, released 2009-11-17, with huge changes to match
+ code size and memory requirements for embedded devices, including:
+ - Gluing together the previous low-level PPP code in lwIP to pppd 2.4.5, which
+ is more or less what pppd sys-* files are, so that we get something working
+ using the unix port.
+ - Merged some patchs from lwIP Git repository which add interesting features
+ or fix bugs.
+ - Merged some patchs from Debian pppd package which add interesting features
+ or fix bugs.
+ - Ported PPP timeout handling to the lwIP timers system
+ - Disabled all the PPP code using filesystem access, replaced in necessary cases
+ to configuration variables.
+ - Disabled all the PPP code forking processes.
+ - Removed IPX support, lwIP does not support IPX.
+ - Ported and improved random module from the previous PPP port.
+ - Removed samba TDB (file-driven database) usage, because it needs a filesystem.
+ - MS-CHAP required a DES implementation, we added the latest PolarSSL DES
+ implementation which is under a BSD-ish license.
+ - Also switched to PolarSSL MD4,MD5,SHA1 implementations, which are meant to be
+ used in embedded devices with reduced memory footprint.
+ - Removed PPP configuration file parsing support.
+ - Added macro definition EAP_SUPPORT to make EAP support optional.
+ - Added macro definition CHAP_SUPPORT to make CHAP support optional.
+ - Added macro definition MSCHAP_SUPPORT to make MSCHAP support optional.
+ - Added macro definition PAP_SUPPORT to make PAP support optional.
+ - Cleared all Linux syscall calls.
+ - Disabled demand support using a macro, so that it can be ported later.
+ - Disabled ECP support using a macro, so that it can be ported later.
+ - Disabled CCP support using a macro, so that it can be ported later.
+ - Disabled CBCP support using a macro, so that it can be ported later.
+ - Disabled LQR support using a macro, so that it can be ported later.
+ - Print packet debug feature optional, through PRINTPKT_SUPPORT
+ - Removed POSIX signal usage.
+ - Fully ported PPPoS code from the previous port.
+ - Fully ported PPPoE code from the previous port.
+ - Fully ported VJ compression protocol code from the previous port.
+ - Removed all malloc()/free() use from PPP, replaced by stack usage or PBUF.
+ - Disabled PPP server support using a macro, so that it can be ported later.
+ - Switched all PPP debug to lwIP debug system.
+ - Created PPP Control Block (PPP PCB), removed PPP unit integer everywhere,
+ removed all global variables everywhere, did everything necessary for
+ the PPP stack to support more than one PPP session (pppd only support
+ one session per process).
+ - Removed the statically allocated output buffer, now using PBUF.
+ - Improved structure size of all PPP modules, deep analyze of code to reduce
+ variables size to the bare minimum. Switched all boolean type (char type in
+ most architecture) to compiler generated bitfields.
+ - Added PPP IPv6 support, glued lwIP IPv6 support to PPP.
+ - Now using a persistent netif interface which can then be used in lwIP
+ functions requiring a netif.
+ - Now initializing PPP in lwip_init() function.
+ - Reworked completely the PPP state machine, so that we don't end up in
+ anymore in inconsistent state, especially with PPPoE.
+ - Improved the way we handle PPP reconnection after disconnect, cleaning
+ everything required so that we start the PPP connection again from a
+ clean state.
+ - Added PPP holdoff support, allow the lwIP user to wait a little bit before
+ reconnecting, prevents connection flood, especially when using PPPoL2TP.
+ - Added PPPoL2TP LAC support (a.k.a. UDP tunnels), adding a VPN client
+ feature to lwIP, L2TP being a widely used tunnel protocol.
+ - Switched all used PPP types to lwIP types (u8t, u16t, u32t, ...)
+ - Added PPP API "sequential" thread-safe API, based from NETIFAPI.
+
+ 2011-07-21: Simon Goldschmidt
+ * sockets.c, opt.h: (bug #30185): added LWIP_FIONREAD_LINUXMODE that makes
+ ioctl/FIONREAD return the size of the next pending datagram.
+
+ 2011-05-25: Simon Goldschmidt
+ * again nearly the whole stack, renamed ip.c to ip4.c, ip_addr.c to ip4_addr.c,
+ combined ipv4/ipv6 inet_chksum.c, added ip.h, ip_addr.h: Combined IPv4
+ and IPv6 code where possible, added defines to access IPv4/IPv6 in non-IP
+ code so that the code is more readable.
+
+ 2011-05-17: Patch by Ivan Delamer (only checked in by Simon Goldschmidt)
+ * nearly the whole stack: Finally, we got decent IPv6 support, big thanks to
+ Ivan! (this is work in progress: we're just post release anyway :-)
+
+
+ ++ Bugfixes:
+
+ 2016-08-23: Simon Goldschmidt
+ * etharp: removed ETHARP_TRUST_IP_MAC since it is insecure and we don't need
+ it any more after implementing unicast ARP renewal towards arp entry timeout
+
+ 2016-07-20: Simon Goldschmidt
+ * memp.h/.c: fixed bug #48442 (memp stats don't work for MEMP_MEM_MALLOC)
+
+ 2016-07-21: Simon Goldschmidt (patch by Ambroz Bizjak)
+ * tcp_in.c, tcp_out.c: fixed bug #48543 (TCP sent callback may prematurely
+ report sent data when only part of a segment is acked) and don't include
+ SYN/FIN in snd_buf counter
+
+ 2016-07-19: Simon Goldschmidt
+ * etharp.c: fixed bug #48477 (ARP input packet might update static entry)
+
+ 2016-07-11: Simon Goldschmidt
+ * tcp_in.c: fixed bug #48476 (TCP sent callback called wrongly due to picking
+ up old pcb->acked
+
+ 2016-06-30: Simon Goldschmidt (original patch by Fabian Koch)
+ * tcp_in.c: fixed bug #48170 (Vulnerable to TCP RST spoofing)
+
+ 2016-05-20: Dirk Ziegelmeier
+ * sntp.h/.c: Fix return value of sntp_getserver() call to return a pointer
+
+ 2016-04-05: Simon Goldschmidt (patch by Philip Gladstone)
+ * udp.c: patch #8358: allow more combinations of listening PCB for IPv6
+
+ 2016-04-05: Simon Goldschmidt
+ * netconn/socket API: fixed bug# 43739 (Accept not reporting errors about
+ aborted connections): netconn_accept() returns ERR_ABRT (sockets: ECONNABORTED)
+ for aborted connections, ERR_CLSD (sockets: EINVAL) if the listening netconn
+ is closed, which better seems to follow the standard.
+
+ 2016-03-23: Florent Matignon
+ * dhcp.c: fixed bug #38203: DHCP options are not recorded in all DHCP ack messages
+
+ 2016-03-22: Simon Goldschmidt
+ * tcp: changed accept handling to be done internally: the application does not
+ have to call tcp_accepted() any more. Instead, when delaying accept (e.g. sockets
+ do), call tcp_backlog_delayed()/tcp_backlog_accepted() (fixes bug #46696)
+
+ 2016-03-22: Simon Goldschmidt
+ * dns.c: ignore dns response parsing errors, only abort resolving for correct
+ responses or error responses from correct server (bug #47459)
+
+ 2016-03-17: Simon Goldschmidt
+ * api_msg.c: fixed bug #47448 (netconn/socket leak if RST is received during close)
+
+ 2016-03-17: Joel Cunningham
+ * api_msg.c: don't fail closing a socket/netconn when failing to allocate the
+ FIN segment; blocking the calling thread for a while is better than risking
+ leaking a netconn/socket (see bug #46701)
+
+ 2016-03-16: Joel Cunningham
+ * tcp_out.c: reset rto timer on fast retransmission
+
+ 2016-03-16: Deomid Ryabkov
+ * tcp_out.c: fixed bug #46384 Segment size calculation bug with MSS != TCP_MSS
+
+ 2016-03-05: Simon Goldschmidt
+ * err.h/.c, sockets.c: ERR_IF is not necessarily a fatal error
+
+ 2015-11-19: fix by Kerem Hadimli
+ * sockets.c: fixed bug #46471: lwip_accept() leaks socket descriptors if new
+ netconn was already closed because of peer behavior
+
+ 2015-11-12: fix by Valery Ushakov
+ * tcp_in.c: fixed bug #46365 tcp_accept_null() should call tcp_abort()
+
+ 2015-10-02: Dirk Ziegelmeier/Simon Goldschmidt
+ * snmp: cleaned up snmp structs API (fixed race conditions from bug #46089,
+ reduce ram/rom usage of tables): incompatible change for private MIBs
+
+ 2015-09-30: Simon Goldschmidt
+ * ip4_addr.c: fixed bug #46072: ip4addr_aton() does not check the number range
+ of all address parts
+
+ 2015-08-28: Simon Goldschmidt
+ * tcp.c, tcp_in.c: fixed bug #44023: TCP ssthresh value is unclear: ssthresh
+ is set to the full send window for active open, too, and is updated once
+ after SYN to ensure the correct send window is used
+
+ 2015-08-28: Simon Goldschmidt
+ * tcp: fixed bug #45559: Window scaling casts u32_t to u16_t without checks
+
+ 2015-08-26: Simon Goldschmidt
+ * ip6_frag.h/.c: fixed bug bug #41009: IPv6 reassembly broken on 64-bit platforms:
+ define IPV6_FRAG_COPYHEADER==1 on these platforms to copy the IPv6 header
+ instead of referencing it, which gives more room for struct ip6_reass_helper
+
+ 2015-08-25: Simon Goldschmidt
+ * sockets.c: fixed bug #45827: recvfrom: TCP window is updated with MSG_PEEK
+
+ 2015-08-20: Manoj Kumar
+ * snmp_msg.h, msg_in.c: fixed bug #43790: Sending octet string of Length >255
+ from SNMP agent
+
+ 2015-08-19: Jens Nielsen
+ * icmp.c, ip4.c, tcp_in.c, udp.c, raw.c: fixed bug #45120: Broadcast & multiple
+ interfaces handling
+
+ 2015-08-19: Simon Goldschmidt (patch by "Sandra")
+ * dns.c: fixed bug #45004: dns response without answer might be discarded
+
+ 2015-08-18: Chrysn
+ * timers.c: patch #8704 fix sys_timeouts_sleeptime function
+
+ 2015-07-01: Erik Ekman
+ * puf.c: fixed bug #45454 (pbuf_take_at() skips write and returns OK if offset
+ is at start of pbuf in chain)
+
+ 2015-05-19: Simon Goldschmidt
+ * dhcp.h/.c: fixed bugs #45140 and #45141 (dhcp was not stopped correctly after
+ fixing bug #38204)
+
+ 2015-03-21: Simon Goldschmidt (patch by Homyak)
+ * tcp_in.c: fixed bug #44766 (LWIP_WND_SCALE: tcphdr->wnd was not scaled in
+ two places)
+
+ 2015-03-21: Simon Goldschmidt
+ * tcp_impl.h, tcp.c, tcp_in.c: fixed bug #41318 (Bad memory ref in tcp_input()
+ after tcp_close())
+
+ 2015-03-21: Simon Goldschmidt
+ * tcp_in.c: fixed bug #38468 (tcp_sent() not called on half-open connection for
+ data ACKed with the same ack as FIN)
+
+ 2015-03-21: Simon Goldschmidt (patch by Christoffer Lind)
+ * dhcp.h/.c: fixed bug #38204 (DHCP lease time not handled correctly)
+
+ 2015-03-20: Simon Goldschmidt
+ * dhcp.c: fixed bug #38714 (Missing option and client address in DHCPRELEASE message)
+
+ 2015-03-19: Simon Goldschmidt
+ * api.h, tcpip.h, api_lib.c, api_msg.c: fixed race conditions in assigning
+ netconn->last_err (fixed bugs #38121 and #37676)
+
+ 2015-03-09: Simon Goldschmidt
+ * ip4.c: fixed the IPv4 part of bug #43904 (ip_route() must detect linkup status)
+
+ 2015-03-04: Simon Goldschmidt
+ * nd6.c: fixed bug #43784 (a host should send at least one Router Solicitation)
+
+ 2015-03-04: Valery Ushakov
+ * ip6.c: fixed bug #41094 (Byte-order bug in IPv6 fragmentation header test)
+
+ 2015-03-04: Zach Smith
+ * nd6.c: fixed bug #38153 (nd6_input() byte order issues)
+
+ 2015-02-26: Simon Goldschmidt
+ * netif.c, tcp.h/.c: fixed bug #44378 (TCP connections are not aborted on netif
+ remove)
+
+ 2015-02-25: Simon Goldschmidt
+ * ip4.c, etharp.c: fixed bug #40177 (System hangs when dealing with corrupted
+ packets), implemented task #12357 (Ensure that malicious packets don't
+ assert-fail): improved some pbuf_header calls to not assert-fail.
+
+ 2015-02-25: patch by Joel Cunningham
+ * udp.h/.c, sockets.c: fixed bug #43028 (IP_MULTICAST_TTL affects unicast
+ datagrams)
+
+ 2015-02-25: patch by Greg Renda
+ * ip4_frag.c: fixed bug #38210 (ip reassembly while remove oldest datagram)
+
+ 2015-02-25: Simon Goldschmidt
+ * sockets.c: fixed bug #38165 (socket with mulicast): ensure igmp membership
+ are dropped when socket (not netconn!) is closed.
+
+ 2015-02-25: Simon Goldschmidt
+ * ip4.h/.c, udp.c: fixed bug #38061 (wrong multicast routing in IPv4) by
+ adding an optional default netif for multicast routing
+
+ 2015-02-25: Simon Goldschmidt
+ * netconn API: fixed that netconn_connect still used message passing for
+ LWIP_TCPIP_CORE_LOCKING==1
+
+ 2015-02-22: patch by Jens Nielsen
+ * icmp.c: fixed bug #38803 (Source address in broadcast ping reply)
+
+ 2015-02-22: Simon Goldschmidt
+ * udp.h, sockets.c: added proper accessor functions for pcb->multicast_ip
+ (previously used by get/setsockopt only)
+
+ 2015-02-18: Simon Goldschmidt
+ * sockets.c: Fixed select not reporting received FIN as 'readable' in certain
+ rare cases (bug #43779: select(), close(), and TCP retransmission error)
+
+ 2015-02-17: Simon Goldschmidt
+ * err.h, sockets.c, api_msg.c: fixed bug #38853 "connect() use a wrong errno":
+ return ERR_ALREADY/EALRADY during connect, ERR_ISCONN/EISCONN when already
+ connected
+
+ 2015-02-17: Simon Goldschmidt
+ * tcp_impl.h, tcp_out.c, tcp.c, api_msg.c: fixed bug #37614 "Errors from
+ ipX_output are not processed". Now tcp_output(_segment) checks for the return
+ value of ipX_output and does not try to send more on error. A netif driver
+ can call tcp_txnow() (from tcpip_thread!) to try to send again if TX buffers
+ are available again.
+
+ 2015-02-14: patches by Freddie Chopin
+ * snmp*: made community writable, fixed some const pointers
+
+ 2015-02-13: Simon Goldschmidt
+ * msg_in.c: fixed bug #22070 "MIB_OBJECT_WRITE_ONLY not implemented in SNMP"
+
+ 2015-02-12: Simon Goldschmidt
+ * ip.h, ip4.c, ip6.c: fixed bug #36403 "ip4_input() and ip6_input() always pass
+ inp to higher layers": now the accepting netif is passed up, but the input
+ netif is available through ip_current_input_netif() if required.
+
+ 2015-02-11: patch by hichard
+ * tcpip.c: fixed bug #43094 "The function tcpip_input() forget to handle IPv6"
+
+ 2015-02-10: Simon Goldschmidt
+ * netconn API: fixed that netconn_close/netconn_delete still used message passing
+ for LWIP_TCPIP_CORE_LOCKING==1
+
+ 2015-02-10: Simon Goldschmidt
+ * netconn/socket api: fixed bug #44225 "closing TCP socket should time out
+ eventually", implemented task #6930 "Implement SO_LINGER": closing TCP sockets
+ times out after 20 seconds or after the configured SND_TIMEOUT or depending
+ on the linger settings.
+
+ 2015-01-27: Simon Goldschmidt
+ * api_msg.c: fixed that SHUT_RD followed by SHUT_WR was different to SHUT_RDWR,
+ fixed return value of lwip_netconn_do_close on unconnected netconns
+
+ 2015-01-17: Simon Goldschmidt
+ * sockets.c: fixed bug #43361 select() crashes with stale FDs
+
+ 2015-01-17: Simon Goldschmidt
+ * sockets.c/.h, memp_std.h: fixed bug #40788 "lwip_setsockopt_internal() crashes"
+ by rewriting set/getsockopt functions to combine checks with the actual code
+ and add more NULL checks; this also fixes that CORE_LOCKING used message
+ passing for set/getsockopt.
+
+ 2014-12-19: Simon Goldschmidt
+ * opt.h, dhcp.h/.c: prevent dhcp from starting when netif link is down (only
+ when LWIP_DHCP_CHECK_LINK_UP==1, which is disabled by default for
+ compatibility reasons)
+
+ 2014-12-17: Simon Goldschmidt
+ * tcp_out.c: fixed bug #43840 Checksum error for TCP_CHECKSUM_ON_COPY==1 for
+ no-copy data with odd length
+
+ 2014-12-10: Simon Goldschmidt
+ * sockets.c, tcp.c, others: fixed bug #43797 set/getsockopt: SO_SNDTIMEO/SO_RCVTIMEO
+ take int as option but should take timeval (LWIP_SO_SNDRCVTIMEO_STANDARD==0 can
+ be used to revert to the old 'winsock' style behaviour)
+ Fixed implementation of SO_ACCEPTCONN to just look at the pcb state
+
+ 2014-12-09: Simon Goldschmidt
+ * ip4.c: fixed bug #43596 IGMP queries from 0.0.0.0 are discarded
+
+ 2014-10-21: Simon Goldschmidt (patch by Joel Cunningham and Albert Huitsing)
+ * sockts.c: fixed bugs #41495 Possible threading issue in select() and #43278
+ event_callback() handle context switch when calling sys_sem_signal()
+
+ 2014-10-21: Simon Goldschmidt
+ * api_msg.c: fixed bug #38219 Assert on TCP netconn_write with sndtimeout set
+
+ 2014-09-16: Kevin Cernekee
+ * dns.c: patch #8480 Fix handling of dns_seqno wraparound
+
+ 2014-09-16: Simon Goldschmidt
+ * tcp_out.c: fixed bug #43192 tcp_enqueue_flags() should not check TCP_SND_QUEUELEN
+ when sending FIN
+
+ 2014-09-03: Simon Goldschmidt
+ * msg_in.c: fixed bug #39355 SNMP Memory Leak in case of error
+
+ 2014-09-02: Simon Goldschmidt
+ * err.h/.c, sockets.c, api_msg.c: fixed bug #43110 call getpeername() before
+ listen() will cause a error
+
+ 2014-09-02: Simon Goldschmidt
+ * sockets.c: fixed bug #42117 lwip_fcntl does not set errno
+
+ 2014-09-02: Simon Goldschmidt
+ * tcp.c: fixed bug #42299 tcp_abort() leaves freed pcb on tcp_bound_pcbs list
+
+ 2014-08-20: Simon Goldschmidt
+ * dns.c: fixed bug #42987 lwIP is vulnerable to DNS cache poisoning due to
+ non-randomized TXIDs
+
+ 2014-06-03: Simon Goldschmidt
+ * tcp_impl.h, tcp_in.c: fixed bug #37969 SYN packet dropped as short packet in
+ tcp_input function
+
+ 2014-05-20: Simon Goldschmidt
+ * tcp_out.c: fixed bug #37184 tcp_write problem for pcbs in the SYN_SENT state
+
+ 2014-05-19: Simon Goldschmidt
+ * *.h: Fixed bug #35874 reserved identifier violation (removed leading underscores
+ from header include guards)
+
+ 2014-04-08: Simon Goldschmidt
+ * tcp.c: Fixed bug #36167 tcp server crash when client closes (maximum window)
+
+ 2014-04-06: Simon Goldschmidt
+ * tcp_in.c: Fixed bug #36210 lwIP does not elicit an empty ACK when received
+ unacceptable ACK
+
+ 2014-04-06: Simon Goldschmidt
+ * dhcp.c, ip4.c/.h, ip6.c/.h, udp.c/.h, ip.h: Fixed bug #41787 DHCP Discovery
+ is invalid when an IP is set to thet netif.
+
+ 2014-03-14: Simon Goldschmidt
+ * tcp_out.c: Fixed bug #36153 TCP Cheksum error if LWIP_CHECKSUM_ON_COPY=1
+
+ 2014-03-11: Simon Goldschmidt (patch by Mason)
+ * opt.h, sockets.c: fixed bug #35928 BSD sockets functions must set errno for
+ POSIX-compliance
+
+ 2014-02-27: Simon Goldschmidt
+ * dhcp.c: fixed bug #40303 DHCP xid renewed when sending a DHCPREQUEST
+
+ 2014-02-27: Simon Goldschmidt
+ * raw.c: fixed bug #41680 raw socket can not receive IPv6 packet when
+ IP_SOF_BROADCAST_RECV==1
+
+ 2014-02-27: Simon Goldschmidt
+ * api_msg.c, sockets.c: fixed bug #38404 getpeeraddr returns success on
+ unconnected/listening TCP sockets
+
+ 2014-02-27: Simon Goldschmidt
+ * sockets.c: fixed bug #41729 Some socket functions return Exyz instead of -1
+
+ 2014-02-25: Simon Goldschmidt
+ * ip4.c: fixed bug #39514 ip_route() may return an IPv6-only interface
+
+ 2014-02-25: Simon Goldschmidt, patch by Fatih Asici
+ * pbuf.c: fixed bug #39356 Wrong increment in pbuf_memfind()
+
+ 2014-02-25: Simon Goldschmidt
+ * netif.c/.h, udp.c: fixed bug #39225 udp.c uses netif_matches_ip6_addr() incorrectly;
+ renamed function netif_matches_ip6_addr() to netif_get_ip6_addr_match()
+
+ 2014-02-25: Simon Goldschmidt
+ * igmp.c: fixed bug #39145 IGMP membership report for 224.0.0.1
+
+ 2014-02-22: Simon Goldschmidt (patch by Amir Shalem)
+ * etharp.c, opt.h: fixed bug #34681 Limit ARP queue length by ARP_QUEUE_LEN (=3)
+
+ 2014-02-22: Simon Goldschmidt (patch by Amir Shalem)
+ * etharp.h/.c: fixed bug #34682 Limit ARP request flood for unresolved entry
+
+ 2014-02-20: Simon Goldschmidt
+ * tcp_out.c: fixed bug #39683 Assertion "seg->tcphdr not aligned" failed with
+ MEM_ALIGNMENT = 8
+
+ 2014-02-20: Simon Goldschmidt
+ * sockets.c: fixed bug #39882 No function shall set errno to 0
+
+ 2014-02-20: Simon Goldschmidt
+ * mib_structs.c: fixed bug #40050 SNMP problem with MIB arrays > 255
+
+ 2014-02-20: Simon Goldschmidt
+ * api.h, sockets.c: fixed bug #41499 netconn::recv_avail can overflow
+
+ 2014-01-08: Stathis Voukelatos
+ * memp_std.h: patch #7928 Fixed size calculation in MALLOC memory pool
+ creation macro
+
+ 2014-01-18: Brian Fahs
+ * tcp_out.c: patch #8237: tcp_rexmit_rto fails to update pcb->unsent_oversize
+ when necessary
+
+ 2014-01-17: Grant Erickson, Jay Logue, Simon Goldschmidt
+ * ipv6.c, netif.c: patch #7913 Enable Support for IPv6 Loopback
+
+ 2014-01-16: Stathis Voukelatos
+ * netif.c: patch #7902 Fixed netif_poll() operation when LWIP_LOOPBACK_MAX_PBUFS > 0
+
+ 2014-01-14: "Freddie Chopin"
+ * snmp.h, mib2.c: fixed constness and spelling of sysdescr
+
+ 2014-01-14: Simon Goldschmidt (patch by Thomas Faber)
+ * tcpip.c: patch #8241: Fix implicit declaration of ip_input with
+ LWIP_TCPIP_CORE_LOCKING_INPUT disabled
+
+ 2014-01-14: chrysn
+ * timers.c: patch #8244 make timeouts usable reliably from outside of the
+ timeout routine
+
+ 2014-01-10: Simon Goldschmidt
+ * ip_frag.c, ip6_frag.c: fixed bug #41041 Potential use-after-free in IPv6 reassembly
+
+ 2014-01-10: Simon Goldschmidt
+ * memp.c: fixed bug #41188 Alignment error in memp_init() when MEMP_SEPARATE_POOLS==1
+
+ 2014-01-10: Simon Goldschmidt
+ * tcp.c: fixed bug #39898 tcp_fasttmr() possible lock due to infinte queue process loop
+
+ 2013-06-29: Simon Goldschmidt
+ * inet.h, sockets.h: partially fixed bug #37585: IPv6 compatibility (in socket structs)
+
+ 2013-06-29: Simon Goldschmidt
+ * inet6.h: bug #37585/task #12600: fixed struct in6_addr.s6_addr to conform to spec
+
+ 2013-04-24: patch by Liam
+ * api_msg.c: patch #8008 Fix a potential null pointer dereference in assert
+
+ 2013-04-24: Simon Goldschmidt
+ * igmp.c: fixed possible division by zero
+
+ 2013-04-24: Simon Goldschmidt
+ * ip6.h, some ipv6 C files: fixed bug #38526 Coverity: Recursive Header Inclusion in ip6.h
+
+ 2013-04-24: Simon Goldschmidt (patch by Emil Ljungdahl):
+ * netif.c: fixed bug #38586 netif_loop_output() "deadlocks"
+
+ 2013-01-15: Simon Goldschmidt
+ * ip4.c: fixed bug #37665 ip_canforward operates on address in wrong byte order
+
+ 2013-01-15: Simon Goldschmidt
+ * pbuf.h: fixed bug #38097 pbuf_free_ooseq() warning
+
+ 2013-01-14: Simon Goldschmidt
+ * dns.c: fixed bug #37705 Possible memory corruption in DNS query
+
+ 2013-01-11: Simon Goldschmidt
+ * raw.c: fixed bug #38066 Raw pcbs can alter packet without eating it
+
+ 2012-08-22: Simon Goldschmidt
+ * memp.c: fixed bug #37166: memp_sanity check loops itself
+
+ 2012-08-13: Simon Goldschmidt
+ * dhcp.c: fixed bug #36645: Calling dhcp_release before dhcp_start
+ dereferences NULL
+
+ 2012-08-13: Simon Goldschmidt
+ * msg_out.c: fixed bug #36840 snmp_send_trap() NULL de-reference if traps
+ configured but no interfaces available
+
+ 2012-08-13: Simon Goldschmidt
+ * dns.c: fixed bug #36899 DNS TTL 0 is cached for a long time
+
+ 2012-05-11: Simon Goldschmidt (patch by Marty)
+ * memp.c: fixed bug #36412: memp.c does not compile when
+ MEMP_OVERFLOW_CHECK > zero and MEMP_SEPARATE_POOLS == 1
+
+ 2012-05-03: Simon Goldschmidt (patch by Sylvain Rochet)
+ * ppp.c: fixed bug #36283 (PPP struct used on header size computation and
+ not packed)
+
+ 2012-05-03: Simon Goldschmidt (patch by David Empson)
+ * ppp.c: fixed bug #36388 (PPP: checksum-only in last pbuf leads to pbuf with
+ zero length)
+
+ 2012-03-25: Simon Goldschmidt
+ * api_msg.c: Fixed bug #35817: do_connect() invalidly signals op_completed
+ for UDP/RAW with LWIP_TCPIP_CORE_LOCKING==1
+
+ 2012-03-25: Simon Goldschmidt
+ * api_msg.h, api_lib.c, api_msg.c, netifapi.c: fixed bug #35931: Name space
+ pollution in api_msg.c and netifapi.c
+
+ 2011-08-24: Simon Goldschmidt
+ * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
+
+
+
+(STABLE-1.4.1)
+
+ ++ New features:
+
+ 2012-03-25: Simon Goldschmidt (idea by Mason)
+ * posix/*: added posix-compatibility include files posix/netdb.h and posix/sys/socket.h
+ which are a simple wrapper to the correct lwIP include files.
+
+ 2012-01-16: Simon Goldschmidt
+ * opt.h, icmp.c: Added option CHECKSUM_GEN_ICMP
+
+ 2011-12-17: Simon Goldschmidt
+ * ip.h: implemented API functions to access so_options of IP pcbs (UDP, TCP, RAW)
+ (fixes bug #35061)
+
+ 2011-09-27: Simon Goldschmidt
+ * opt.h, tcp.c, tcp_in.c: Implemented limiting data on ooseq queue (task #9989)
+ (define TCP_OOSEQ_MAX_BYTES / TCP_OOSEQ_MAX_PBUFS in lwipopts.h)
+
+ 2011-09-21: Simon Goldschmidt
+ * opt.h, api.h, api_lib.c, api_msg.h/.c, sockets.c: Implemented timeout on
+ send (TCP only, bug #33820)
+
+ 2011-09-21: Simon Goldschmidt
+ * init.c: Converted runtime-sanity-checks into compile-time checks that can
+ be disabled (since runtime checks can often not be seen on embedded targets)
+
+ 2011-09-11: Simon Goldschmidt
+ * ppp.h, ppp_impl.h: splitted ppp.h to an internal and external header file
+ to get a clear separation of which functions an application or port may use
+ (task #11281)
+
+ 2011-09-11: Simon Goldschmidt
+ * opt.h, tcp_impl.h, tcp.c, udp.h/.c: Added a config option to randomize
+ initial local TCP/UDP ports (so that different port ranges are used after
+ a reboot; bug #33818; this one added tcp_init/udp_init functions again)
+
+ 2011-09-03: Simon Goldschmidt
+ * dhcp.c: DHCP uses LWIP_RAND() for xid's (bug #30302)
+
+ 2011-08-24: Simon Goldschmidt
+ * opt.h, netif.h/.c: added netif remove callback (bug #32397)
+
+ 2011-07-26: Simon Goldschmidt
+ * etharp.c: ETHARP_SUPPORT_VLAN: add support for an external VLAN filter
+ function instead of only checking for one VLAN (define ETHARP_VLAN_CHECK_FN)
+
+ 2011-07-21: Simon Goldschmidt (patch by hanhui)
+ * ip4.c, etharp.c, pbuf.h: bug #33634 ip_forward() have a faulty behaviour:
+ Added pbuf flags to mark incoming packets as link-layer broadcast/multicast.
+ Also added code to allow ip_forward() to forward non-broadcast packets to
+ the input netif (set IP_FORWARD_ALLOW_TX_ON_RX_NETIF==1).
+
+ 2011-06-26: Simon Goldschmidt (patch by Cameron Gutman)
+ * tcp.c, tcp_out.c: bug #33604: added some more asserts to check that
+ pcb->state != LISTEN
+
+ 2011-05-14: Simon Goldschmidt (patch by Stéphane Lesage)
+ * tcpip.c/.h: patch #7449 allow tcpip callback from interrupt with static
+ memory message
+
+
+ ++ Bugfixes:
+
+ 2012-09-26: Simon Goldschmidt
+ * api_msg.c: fixed bug #37405 'err_tcp()' uses already freed 'netconn' object
+
+ 2012-09-26: patch by Henrik Persson
+ * dhcp.c: patch #7843 Fix corner case with dhcp timeouts
+
+ 2012-09-26: patch by Henrik Persson
+ * dhcp.c: patch #7840 Segfault in dhcp_parse_reply if no end marker in dhcp packet
+
+ 2012-08-22: Simon Goldschmidt
+ * memp.c: fixed bug #37166: memp_sanity check loops itself
+
+ 2012-05-08: Simon Goldschmidt
+ * tcp_out.c: fixed bug: #36380 unsent_oversize mismatch in 1.4.1RC1 (this was
+ a debug-check issue only)
+
+ 2012-03-27: Simon Goldschmidt
+ * vj.c: fixed bug #35756 header length calculation problem in ppp/vj.c
+
+ 2012-03-27: Simon Goldschmidt (patch by Mason)
+ * tcp_out.c: fixed bug #35945: SYN packet should provide the recv MSS not the
+ send MSS
+
+ 2012-03-22: Simon Goldschmidt
+ * ip4.c: fixed bug #35927: missing refragmentaion in ip_forward
+
+ 2012-03-20: Simon Goldschmidt (patch by Mason)
+ * netdb.c: fixed bug #35907: lwip_gethostbyname_r returns an invalid h_addr_list
+
+ 2012-03-12: Simon Goldschmidt (patch by Bostjan Meglic)
+ * ppp.c: fixed bug #35809: PPP GetMask(): Compiler warning on big endian,
+ possible bug on little endian system
+
+ 2012-02-23: Simon Goldschmidt
+ * etharp.c: fixed bug #35595: Impossible to send broadcast without a gateway
+ (introduced when fixing bug# 33551)
+
+ 2012-02-16: Simon Goldschmidt
+ * ppp.c: fixed pbuf leak when PPP session is aborted through pppSigHUP()
+ (bug #35541: PPP Memory Leak)
+
+ 2012-02-16: Simon Goldschmidt
+ * etharp.c: fixed bug #35531: Impossible to send multicast without a gateway
+ (introduced when fixing bug# 33551)
+
+ 2012-02-16: Simon Goldschmidt (patch by Stéphane Lesage)
+ * msg_in.c, msg_out.c: fixed bug #35536 SNMP: error too big response is malformed
+
+ 2012-02-15: Simon Goldschmidt
+ * init.c: fixed bug #35537: MEMP_NUM_* sanity checks should be disabled with
+ MEMP_MEM_MALLOC==1
+
+ 2012-02-12: Simon Goldschmidt
+ * tcp.h, tcp_in.c, tcp_out.c: partly fixed bug #25882: TCP hangs on
+ MSS > pcb->snd_wnd (by not creating segments bigger than half the window)
+
+ 2012-02-11: Simon Goldschmidt
+ * tcp.c: fixed bug #35435: No pcb state check before adding it to time-wait
+ queue while closing
+
+ 2012-01-22: Simon Goldschmidt
+ * tcp.c, tcp_in.c: fixed bug #35305: pcb may be freed too early on shutdown(WR)
+
+ 2012-01-21: Simon Goldschmidt
+ * tcp.c: fixed bug #34636: FIN_WAIT_2 - Incorrect shutdown of TCP pcb
+
+ 2012-01-20: Simon Goldschmidt
+ * dhcp.c: fixed bug #35151: DHCP asserts on incoming option lengths
+
+ 2012-01-20: Simon Goldschmidt
+ * pbuf.c: fixed bug #35291: NULL pointer in pbuf_copy
+
+ 2011-11-25: Simon Goldschmidt
+ * tcp.h/.c, tcp_impl.h, tcp_in.c: fixed bug #31177: tcp timers can corrupt
+ tcp_active_pcbs in some cases
+
+ 2011-11-23: Simon Goldschmidt
+ * sys.c: fixed bug #34884: sys_msleep() body needs to be surrounded with
+ '#ifndef sys_msleep'
+
+ 2011-11-22: Simon Goldschmidt
+ * netif.c, etharp.h/.c: fixed bug #34684: Clear the arp table cache when
+ netif is brought down
+
+ 2011-10-28: Simon Goldschmidt
+ * tcp_in.c: fixed bug #34638: Dead code in tcp_receive - pcb->dupacks
+
+ 2011-10-23: Simon Goldschmidt
+ * mem.c: fixed bug #34429: possible memory corruption with
+ LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT set to 1
+
+ 2011-10-18: Simon Goldschmidt
+ * arch.h, netdb.c: fixed bug #34592: lwip_gethostbyname_r uses nonstandard
+ error value
+
+ 2011-10-18: Simon Goldschmidt
+ * opt.h: fixed default values of TCP_SNDLOWAT and TCP_SNDQUEUELOWAT for small
+ windows (bug #34176 select after non-blocking send times out)
+
+ 2011-10-18: Simon Goldschmidt
+ * tcp_impl.h, tcp_out.c: fixed bug #34587: TCP_BUILD_MSS_OPTION doesn't
+ consider netif->mtu, causes slow network
+
+ 2011-10-18: Simon Goldschmidt
+ * sockets.c: fixed bug #34581 missing parentheses in udplite sockets code
+
+ 2011-10-18: Simon Goldschmidt
+ * sockets.h: fixed bug #34580 fcntl() is missing in LWIP_COMPAT_SOCKETS
+
+ 2011-10-17: Simon Goldschmidt
+ * api_msg.c: fixed bug #34569: shutdown(SHUT_WR) crashes netconn/socket api
+
+ 2011-10-13: Simon Goldschmidt
+ * tcp_in.c, tcp_out.c: fixed bug #34517 (persist timer is started although no
+ zero window is received) by starting the persist timer when a zero window is
+ received, not when we have more data queued for sending than fits into the
+ window
+
+ 2011-10-13: Simon Goldschmidt
+ * def.h, timers.c: fixed bug #34541: LWIP_U32_DIFF is unnecessarily complex
+
+ 2011-10-13: Simon Goldschmidt
+ * sockets.c, api_lib.c: fixed bug #34540: compiler error when CORE_LOCKING is
+ used and not all protocols are enabled
+
+ 2011-10-12: Simon Goldschmidt
+ * pbuf.c: fixed bug #34534: Error in sending fragmented IP if MEM_ALIGNMENT > 4
+
+ 2011-10-09: Simon Goldschmidt
+ * tcp_out.c: fixed bug #34426: tcp_zero_window_probe() transmits incorrect
+ byte value when pcb->unacked != NULL
+
+ 2011-10-09: Simon Goldschmidt
+ * ip4.c: fixed bug #34447 LWIP_IP_ACCEPT_UDP_PORT(dst_port) wrong
+
+ 2011-09-27: Simon Goldschmidt
+ * tcp_in.c, tcp_out.c: Reset pcb->unsent_oversize in 2 more places...
+
+ 2011-09-27: Simon Goldschmidt
+ * tcp_in.c: fixed bug #28288: Data after FIN in oos queue
+
+ 2011-09-27: Simon Goldschmidt
+ * dhcp.c: fixed bug #34406 dhcp_option_hostname() can overflow the pbuf
+
+ 2011-09-24: Simon Goldschmidt
+ * mem.h: fixed bug #34377 MEM_SIZE_F is not defined if MEM_LIBC_MALLOC==1
+
+ 2011-09-23: Simon Goldschmidt
+ * pbuf.h, tcp.c, tcp_in.c: fixed bug #33871: rejecting TCP_EVENT_RECV() for
+ the last packet including FIN can lose data
+
+ 2011-09-22: Simon Goldschmidt
+ * tcp_impl.h: fixed bug #34355: nagle does not take snd_buf/snd_queuelen into
+ account
+
+ 2011-09-21: Simon Goldschmidt
+ * opt.h: fixed default value of TCP_SND_BUF to not violate the sanity checks
+ in init.c
+
+ 2011-09-20: Simon Goldschmidt
+ * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts)
+
+ 2011-09-11: Simon Goldschmidt
+ * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs
+ (bug #34019)
+
+ 2011-09-09: Simon Goldschmidt
+ * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
+ udp port matches
+
+ 2011-09-03: Simon Goldschmidt
+ * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
+ is aggregated and sent to application
+
+ 2011-09-01: Simon Goldschmidt
+ * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
+ to other options
+
+ 2011-09-01: Simon Goldschmidt
+ * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
+
+ 2011-08-24: Simon Goldschmidt
+ * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
+ accept() on UDP connections
+
+ 2011-08-24: Simon Goldschmidt
+ * sockets.h: fixed bug #34057 socklen_t should be a typedef
+
+ 2011-08-24: Simon Goldschmidt
+ * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
+
+ 2011-08-24: Simon Goldschmidt
+ * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
+
+ 2011-08-24: Simon Goldschmidt
+ * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
+
+ 2011-08-22: Simon Goldschmidt
+ * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
+ merely prevents nagle from not transmitting fast after closing.)
+
+ 2011-07-22: Simon Goldschmidt
+ * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
+ always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
+ lwip_send() sends as much as possible for non-blocking sockets
+
+ 2011-07-22: Simon Goldschmidt
+ * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
+ for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
+ at regular intervals from main level.
+
+ 2011-07-21: Simon Goldschmidt
+ * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
+ sending an ARP request when an ARP entry is used in the last minute before
+ it would time out.
+
+ 2011-07-04: Simon Goldschmidt
+ * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
+
+ 2011-06-26: Simon Goldschmidt
+ * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
+ updating its documentation only.
+
+ 2011-06-26: Simon Goldschmidt
+ * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
+ unaligned pointer.
+
+ 2011-06-26: Simon Goldschmidt
+ * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
+
+ 2011-05-25: Simon Goldschmidt
+ * tcp.c: fixed bug #33398 (pointless conversion when checking TCP port range)
+
+
+
+(STABLE-1.4.0)
+
+ ++ New features:
+
+ 2011-03-27: Simon Goldschmidt
+ * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
+ calculate it in tcp_zero_window_probe (the only place where it was used).
+
+ 2010-11-21: Simon Goldschmidt
+ * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
+ (fixes bug #31525).
+
+ 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
+ * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
+ IP_MULTICAST_LOOP at socket- and raw-API level.
+
+ 2010-06-16: Simon Goldschmidt
+ * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
+ link-layer-addressed UDP traffic to be received while a netif is down (just
+ like DHCP during configuration)
+
+ 2010-05-22: Simon Goldschmidt
+ * many many files: bug #27352: removed packing from ip_addr_t, the packed
+ version is now only used in protocol headers. Added global storage for
+ current src/dest IP address while in input functions.
+
+ 2010-05-16: Simon Goldschmidt
+ * def.h: task #10391: Add preprocessor-macros for compile-time htonl
+ calculation (and use them throughout the stack where applicable)
+
+ 2010-05-16: Simon Goldschmidt
+ * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
+ instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
+
+ 2010-05-16: Simon Goldschmidt
+ * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
+ MEMP pool instead of the heap
+
+ 2010-05-13: Simon Goldschmidt
+ * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
+ new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
+ packets to more than one pcb.
+
+ 2010-05-02: Simon Goldschmidt
+ * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
+ UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
+
+ 2010-04-30: Simon Goldschmidt
+ * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
+ take a precalculated checksum, added pbuf_fill_chksum() to copy data
+ into a pbuf and at the same time calculating the checksum for that data
+
+ 2010-04-29: Simon Goldschmidt
+ * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
+ 2-byte-aligned IP addresses and MAC addresses
+
+ 2010-04-28: Patch by Bill Auerbach
+ * ip.c: Inline generating IP checksum to save a function call
+
+ 2010-04-14: Simon Goldschmidt
+ * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
+ tcpip_thread processes messages or timeouts to implement a watchdog.
+
+ 2010-03-28: Simon Goldschmidt
+ * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
+ fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
+
+ 2010-03-27: Simon Goldschmidt
+ * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
+ etharp_query to prevent unnecessary function calls (inspired by
+ patch #7135).
+
+ 2010-03-20: Simon Goldschmidt
+ * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
+ since the linker cannot do this automatically to save space.
+
+ 2010-03-20: Simon Goldschmidt
+ * opt.h, etharp.c/.h: Added support for static ARP table entries
+
+ 2010-03-14: Simon Goldschmidt
+ * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
+ when creating TCP segments, not when (re-)transmitting them.
+
+ 2010-03-07: Simon Goldschmidt
+ * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
+ on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
+ This should speed up receiving data on sockets as the select code in
+ event_callback is only executed when select is waiting.
+
+ 2010-03-06: Simon Goldschmidt
+ * tcp_out.c: task #7013 (Create option to have all packets delivered to
+ netif->output in one piece): Always copy to try to create single pbufs
+ in tcp_write.
+
+ 2010-03-06: Simon Goldschmidt
+ * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
+ by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
+ for tcp netconns to receive pbufs, not netbufs; use that function
+ for tcp sockets.
+
+ 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
+ * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
+ Work on tcp_enqueue: Don't waste memory when chaining segments,
+ added option TCP_OVERSIZE to prevent creating many small pbufs when
+ calling tcp_write with many small blocks of data. Instead, pbufs are
+ allocated larger than needed and the space is used for later calls to
+ tcp_write.
+
+ 2010-02-21: Simon Goldschmidt
+ * stats.c/.h: Added const char* name to mem- and memp-stats for easier
+ debugging.
+
+ 2010-02-21: Simon Goldschmidt
+ * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
+ implementation of tcp to make API usage cleare to application programmers
+
+ 2010-02-14: Simon Goldschmidt/Stephane Lesage
+ * ip_addr.h: Improved some defines working on ip addresses, added faster
+ macro to copy addresses that cannot be NULL
+
+ 2010-02-13: Simon Goldschmidt
+ * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
+ blocking send operation)
+
+ 2010-02-12: Simon Goldschmidt
+ * sockets.c/.h: Added a minimal version of posix fctl() to have a
+ standardised way to set O_NONBLOCK for nonblocking sockets.
+
+ 2010-02-12: Simon Goldschmidt
+ * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
+ memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
+ and dhcp work with user-allocated structs instead of callin mem_malloc
+
+ 2010-02-12: Simon Goldschmidt/Jeff Barber
+ * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
+ SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
+
+ 2010-02-12: Simon Goldschmidt
+ * sys layer: task #10139 (Prefer statically allocated memory): converted
+ mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
+ converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
+ task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
+ to let sys.h use binary semaphores instead of mutexes - as before)
+
+ 2010-02-09: Simon Goldschmidt (Simon Kallweit)
+ * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
+ (Restart system timeout handling)
+
+ 2010-02-09: Simon Goldschmidt
+ * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
+ netif.c) - loopif does not have to be created by the port any more,
+ just define LWIP_HAVE_LOOPIF to 1.
+
+ 2010-02-08: Simon Goldschmidt
+ * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
+ inet_ntoa_r/ipaddr_ntoa_r
+
+ 2010-02-08: Simon Goldschmidt
+ * netif.h: Added netif_s/get_igmp_mac_filter() macros
+
+ 2010-02-05: Simon Goldschmidt
+ * netif.h: Added function-like macros to get/set the hostname on a netif
+
+ 2010-02-04: Simon Goldschmidt
+ * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
+ make changing the actual implementation behind the typedef easier.
+
+ 2010-02-01: Simon Goldschmidt
+ * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
+ for allocating memory when getaddrinfo() is called.
+
+ 2010-01-31: Simon Goldschmidt
+ * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
+ them once instead of parsing for every option. This also removes
+ the need for mem_malloc from dhcp_recv and makes it possible to
+ correctly retrieve the BOOTP file.
+
+ 2010-01-30: simon Goldschmidt
+ * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
+ the sockets array.
+
+ 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
+ * api.h, api_msg.c, sockets.c: Added except set support in select
+ (patch #6860)
+
+ 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
+ * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
+ Add non-blocking support for connect (partly from patch #6860),
+ plus many cleanups in socket & netconn API.
+
+ 2010-01-27: Simon Goldschmidt
+ * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
+ to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
+
+ 2010-01-26: Simon Goldschmidt
+ * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
+
+ 2010-01-14: Simon Goldschmidt
+ * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
+ by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
+
+ 2010-01-13: Simon Goldschmidt
+ * mem.c: The heap now may be moved to user-defined memory by defining
+ LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
+ (patch #6966 and bug #26133)
+
+ 2010-01-10: Simon Goldschmidt (Bill Auerbach)
+ * opt.h, memp.c: patch #6822 (Add option to place memory pools in
+ separate arrays)
+
+ 2010-01-10: Simon Goldschmidt
+ * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
+ LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
+
+ 2009-12-31: Simon Goldschmidt
+ * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
+ added timers.c/.h: Separated timer implementation from semaphore/mbox
+ implementation, moved timer implementation to timers.c/.h, timers are
+ now only called from tcpip_thread or by explicitly checking them.
+ (TASK#7235)
+
+ 2009-12-27: Simon Goldschmidt
+ * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
+ LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
+
+
+ ++ Bugfixes:
+
+ 2011-04-20: Simon Goldschmidt
+ * sys_arch.txt: sys_arch_timeouts() is not needed any more.
+
+ 2011-04-13: Simon Goldschmidt
+ * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
+ using ports in the IANA private/dynamic range (49152 through 65535).
+
+ 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
+ * etharp.h/.c: Fixed broken VLAN support.
+
+ 2011-03-27: Simon Goldschmidt
+ * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
+ pcbs) by checking if the pcb was bound (local_port != 0).
+
+ 2011-03-27: Simon Goldschmidt
+ * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
+
+ 2011-03-27: Simon Goldschmidt
+ * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
+ raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
+
+ 2011-03-27: Simon Goldschmidt
+ * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
+ is present never times out) by starting retransmission timer before checking
+ route.
+
+ 2011-03-22: Simon Goldschmidt
+ * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
+ calling sio_read_abort() if the file descriptor is valid.
+
+ 2011-03-14: Simon Goldschmidt
+ * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
+ more than once can render a socket useless) since it mainly involves changing
+ "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
+
+ 2011-03-13: Simon Goldschmidt
+ * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
+ err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
+ use EALRADY instead of -1
+
+ 2011-03-13: Simon Goldschmidt
+ * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
+ connection has been aborted by err_tcp (since this is not a normal closing
+ procedure).
+
+ 2011-03-13: Simon Goldschmidt
+ * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
+ with pcb->state != CLOSED
+
+ 2011-02-17: Simon Goldschmidt
+ * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
+ documentation
+
+ 2011-02-17: Simon Goldschmidt
+ * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
+
+ 2011-01-24: Simon Goldschmidt
+ * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
+
+ 2010-12-02: Simon Goldschmidt
+ * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
+
+ 2010-11-23: Simon Goldschmidt
+ * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
+ LWIP_SO_RCVBUF and ioctl/FIONREAD.
+
+ 2010-11-23: Simon Goldschmidt
+ * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
+ least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
+
+ 2010-11-23: Simon Goldschmidt
+ * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
+ refusing 'refused_data' again.
+
+ 2010-11-22: Simon Goldschmidt
+ * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
+ after a successful nonblocking connection.
+
+ 2010-11-22: Simon Goldschmidt
+ * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
+ must be sent link-local
+
+ 2010-11-22: Simon Goldschmidt
+ * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
+ LWIP_TIMERS==0
+
+ 2010-11-20: Simon Goldschmidt
+ * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
+
+ 2010-11-20: Simon Goldschmidt
+ * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
+ resemble other stacks.
+
+ 2010-11-20: Simon Goldschmidt
+ * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
+ no-copy TCP writes will never succeed.
+
+ 2010-11-20: Simon Goldschmidt
+ * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
+ not match documentation: return ERR_ARG instead of ERR_VAL if not
+ initialized or wrong argument.
+
+ 2010-10-20: Simon Goldschmidt
+ * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
+
+ 2010-10-05: Simon Goldschmidt
+ * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
+ replugging the network cable after an AutoIP address was assigned.
+
+ 2010-08-10: Simon Goldschmidt
+ * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
+
+ 2010-08-03: Simon Goldschmidt
+ * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
+
+ 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
+ * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
+ endian architectures)
+
+ 2010-07-28: Simon Goldschmidt
+ * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
+ disabled.
+
+ 2010-07-27: Simon Goldschmidt
+ * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
+ harm but never did anything
+
+ 2010-07-21: Simon Goldschmidt
+ * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
+ add IP options)
+
+ 2010-07-16: Kieran Mansley
+ * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
+
+ 2010-07-10: Simon Goldschmidt
+ * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
+
+ 2010-06-30: Simon Goldschmidt
+ * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
+ netconn_delete)
+
+ 2010-06-28: Kieran Mansley
+ * timers.c remove unportable printing of C function pointers
+
+ 2010-06-24: Simon Goldschmidt
+ * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
+ NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
+
+ 2010-06-24: Simon Goldschmidt
+ * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
+ implemented shutdown at socket level.
+
+ 2010-06-21: Simon Goldschmidt
+ * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
+ problems with zero-copy DMA MACs) by adding custom pbufs and implementing
+ custom pbufs that reference other (original) pbufs. Additionally set
+ IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
+
+ 2010-06-15: Simon Goldschmidt
+ * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
+
+ 2010-06-14: Simon Goldschmidt
+ * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
+
+ 2010-06-12: Simon Goldschmidt
+ * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
+ state
+
+ 2010-05-17: Simon Goldschmidt
+ * netdb.c: Correctly NULL-terminate h_addr_list
+
+ 2010-05-16: Simon Goldschmidt
+ * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
+ "symbol already defined" i.e. when linking to winsock
+
+ 2010-05-05: Simon Goldschmidt
+ * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
+ overflow)
+
+ 2010-04-21: Simon Goldschmidt
+ * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
+ connection)
+
+ 2010-03-28: Luca Ceresoli
+ * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
+
+ 2010-03-27: Luca Ceresoli
+ * mib2.c: patch #7130: remove meaningless const qualifiers
+
+ 2010-03-26: Simon Goldschmidt
+ * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
+
+ 2010-03-26: Simon Goldschmidt
+ * various files: Fixed compiling with different options disabled (TCP/UDP),
+ triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
+
+ 2010-03-25: Simon Goldschmidt
+ * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
+
+ 2010-03-25: Simon Goldschmidt
+ * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
+ overrunning our rcv_wnd in ooseq case.
+
+ 2010-03-22: Simon Goldschmidt
+ * tcp.c: tcp_listen() did not copy the pcb's prio.
+
+ 2010-03-19: Simon Goldschmidt
+ * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
+
+ 2010-03-14: Simon Goldschmidt
+ * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
+ where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
+ and basing PBUF_LINK_HLEN on it.
+
+ 2010-03-08: Simon Goldschmidt
+ * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
+ when assiging routable address): when checking incoming packets and
+ aborting existing connection on address change, filter out link-local
+ addresses.
+
+ 2010-03-06: Simon Goldschmidt
+ * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
+
+ 2010-03-06: Simon Goldschmidt
+ * ipv4/ip.c: Don't try to forward link-local addresses
+
+ 2010-03-06: Simon Goldschmidt
+ * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
+ addresses to gw
+
+ 2010-03-05: Simon Goldschmidt
+ * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
+ and state.
+
+ 2010-03-05: Simon Goldschmidt
+ * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
+ into multiple calls to tcp_write.
+
+ 2010-02-21: Simon Goldschmidt
+ * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
+ the implementation of DNS_USES_STATIC_BUF==1)
+
+ 2010-02-20: Simon Goldschmidt
+ * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
+ close() vs. shutdown(). Now the application does not get any more
+ recv callbacks after calling tcp_close(). Added tcp_shutdown().
+
+ 2010-02-19: Simon Goldschmidt
+ * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
+ confusion with realloc()
+
+ 2010-02-15: Simon Goldschmidt/Stephane Lesage
+ * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
+ (fixes bug #28899)
+
+ 2010-02-14: Simon Goldschmidt
+ * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
+ LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
+ admin-status of a netif are up
+
+ 2010-02-14: Simon Goldschmidt
+ * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
+ reception and is not really necessary
+
+ 2010-02-14: Simon Goldschmidt
+ * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
+ request was directed as us (RFC 826, Packet Reception), otherwise
+ only update existing entries; internalized some functions
+
+ 2010-02-14: Simon Goldschmidt
+ * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
+ disabled on netif used for PPPoE) by adding a new netif flag
+ (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
+ device but prevents usage of ARP (so that ethernet_input can be used
+ for PPPoE).
+
+ 2010-02-12: Simon Goldschmidt
+ * netif.c: netif_set_link_up/down: only do something if the link state
+ actually changes
+
+ 2010-02-12: Simon Goldschmidt/Stephane Lesage
+ * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
+ connect)
+
+ 2010-02-12: Simon Goldschmidt
+ * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
+
+ 2010-02-09: Simon Goldschmidt
+ * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
+ (recv() makes receive window update for data that wasn't received by
+ application)
+
+ 2010-02-09: Simon Goldschmidt/Stephane Lesage
+ * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
+ or any netconn_recv() error)
+
+ 2010-02-09: Simon Goldschmidt
+ * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
+
+ 2010-02-09: Simon Goldschmidt
+ * netif.c: For loopback packets, adjust the stats- and snmp-counters
+ for the loopback netif.
+
+ 2010-02-08: Simon Goldschmidt
+ * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
+ since they are not used anywhere else.
+
+ 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
+ * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
+ (patch from bug #28798)
+
+ 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
+ * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
+ another bug when LWIP_RAND() returns zero.
+
+ 2010-02-04: Simon Goldschmidt
+ * nearly every file: Use macros defined in ip_addr.h (some of them new)
+ to work with IP addresses (preparation for bug #27352 - Change ip_addr
+ from struct to typedef (u32_t) - and better code).
+
+ 2010-01-31: Simon Goldschmidt
+ * netif.c: Don't call the link-callback from netif_set_up/down() since
+ this invalidly retriggers DHCP.
+
+ 2010-01-29: Simon Goldschmidt
+ * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
+ portability file inet.h and its contents from the stack: moved htonX-
+ functions to def.h (and the new def.c - they are not ipv4 dependent),
+ let inet.h depend on ip_addr.h and not the other way round.
+ This fixes bug #28732.
+
+ 2010-01-28: Kieran Mansley
+ * tcp.c: Ensure ssthresh >= 2*MSS
+
+ 2010-01-27: Simon Goldschmidt
+ * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
+ callback can lead to accessing unallocated memory. As a consequence,
+ ERR_ABRT means the application has called tcp_abort()!
+
+ 2010-01-25: Simon Goldschmidt
+ * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
+ not implemented in SNMP): write-only or not-accessible are still
+ returned by getnext (though not by get)
+
+ 2010-01-24: Simon Goldschmidt
+ * snmp: Renamed the private mib node from 'private' to 'mib_private' to
+ not use reserved C/C++ keywords
+
+ 2010-01-23: Simon Goldschmidt
+ * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
+ than 1 ms
+
+ 2010-01-21: Simon Goldschmidt
+ * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
+ if tcp_enqueue fails) both in raw- and netconn-API
+
+ 2010-01-19: Simon Goldschmidt
+ * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
+
+ 2010-01-18: Iordan Neshev/Simon Goldschmidt
+ * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
+ bugfix backports from 2.4.x.
+
+ 2010-01-18: Simon Goldschmidt
+ * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
+
+ 2010-01-17: Simon Goldschmidt
+ * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
+ task #10102: "netconn: clean up conn->err threading issues" by adding
+ error return value to struct api_msg_msg
+
+ 2010-01-17: Simon Goldschmidt
+ * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
+ to return err_t (bugs #27709 and #28087)
+
+ 2010-01-14: Simon Goldschmidt
+ * ...: Use typedef for function prototypes throughout the stack.
+
+ 2010-01-13: Simon Goldschmidt
+ * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
+ window = 0) by correctly draining recvmbox/acceptmbox
+
+ 2010-01-11: Simon Goldschmidt
+ * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
+ erroneous callbacks) by copying the code from recent pppd
+
+ 2010-01-10: Simon Goldschmidt
+ * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
+
+ 2010-01-10: Simon Goldschmidt
+ * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
+
+ 2010-01-08: Simon Goldschmidt
+ * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
+
+ 2010-01-08: Simon Goldschmidt
+ * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
+ passed to dns_local_addhost() might be volatile
+
+ 2010-01-07: Simon Goldschmidt
+ * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
+
+ 2010-01-06: Simon Goldschmidt
+ * netdb.h: Fixed bug #28496: missing include guards in netdb.h
+
+ 2009-12-31: Simon Goldschmidt
+ * many ppp files: Reorganised PPP source code from ucip structure to pppd
+ structure to easily compare our code against the pppd code (around v2.3.1)
+
+ 2009-12-27: Simon Goldschmidt
+ * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
+ unit test
+
+
+(STABLE-1.3.2)
+
+ ++ New features:
+
+ 2009-10-27 Simon Goldschmidt/Stephan Lesage
+ * netifapi.c/.h: Added netifapi_netif_set_addr()
+
+ 2009-10-07 Simon Goldschmidt/Fabian Koch
+ * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
+ support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
+
+ 2009-08-26 Simon Goldschmidt/Simon Kallweit
+ * slipif.c/.h: bug #26397: SLIP polling support
+
+ 2009-08-25 Simon Goldschmidt
+ * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
+ New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
+
+ 2009-08-25 Simon Goldschmidt
+ * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
+
+ 2009-08-24 Jakob Stoklund Olesen
+ * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
+ to netif_set_link_up().
+
+ 2009-08-23 Simon Goldschmidt
+ * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
+ to a human-readable string.
+
+ ++ Bugfixes:
+
+ 2009-12-24: Kieran Mansley
+ * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
+ (BUG#28241)
+
+ 2009-12-06: Simon Goldschmidt
+ * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
+ be statically allocated (like in ucip)
+
+ 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
+ * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
+
+ 2009-12-03: Simon Goldschmidt
+ * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
+ could have non-zero length
+
+ 2009-12-02: Simon Goldschmidt
+ * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
+ tcp_input_pcb until after calling the pcb's callbacks
+
+ 2009-11-29: Simon Goldschmidt
+ * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
+ sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
+
+ 2009-11-29: Simon Goldschmidt
+ * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
+ queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
+
+ 2009-11-26: Simon Goldschmidt
+ * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
+ segment
+
+ 2009-11-26: Simon Goldschmidt
+ * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
+ algorithm at PCB level
+
+ 2009-11-22: Simon Goldschmidt
+ * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
+
+ 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
+ * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
+ reusing time-wait pcb
+
+ 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
+ * sockets.c: Fixed bug #28062: Data received directly after accepting
+ does not wake up select
+
+ 2009-11-11: Simon Goldschmidt
+ * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
+
+ 2009-10-30: Simon Goldschmidt
+ * opt.h: Increased default value for TCP_MSS to 536, updated default
+ value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
+
+ 2009-10-28: Kieran Mansley
+ * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
+ to follow algorithm from TCP/IP Illustrated
+
+ 2009-10-27: Kieran Mansley
+ * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
+
+ 2009-10-25: Simon Goldschmidt
+ * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
+ pcb->recv is NULL to keep rcv_wnd correct)
+
+ 2009-10-25: Simon Goldschmidt
+ * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
+
+ 2009-10-23: Simon Goldschmidt (David Empson)
+ * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
+
+ 2009-10-21: Simon Goldschmidt
+ * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
+ trailing 1 byte len (SYN/FIN)
+
+ 2009-10-21: Simon Goldschmidt
+ * tcp_out.c: Fixed bug #27315: zero window probe and FIN
+
+ 2009-10-19: Simon Goldschmidt
+ * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
+ conditional code to assert where applicable), check pbuf length before
+ testing for valid reply
+
+ 2009-10-19: Simon Goldschmidt
+ * dhcp.c: Removed most calls to udp_connect since they aren't necessary
+ when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
+
+ 2009-10-16: Simon Goldschmidt
+ * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
+ valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
+ enabled
+
+ 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
+ * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
+
+ 2009-10-15: Simon Goldschmidt
+ * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
+ timeout
+
+ 2009-10-15: Simon Goldschmidt
+ * autoip.c: Fixed bug #27704: autoip starts with wrong address
+ LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
+ of network byte order
+
+ 2009-10-11 Simon Goldschmidt (Jörg Kesten)
+ * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
+ which are not consecutive when retransmitting unacked segments
+
+ 2009-10-09 Simon Goldschmidt
+ * opt.h: Fixed default values of some stats to only be enabled if used
+ Fixes bug #27338: sys_stats is defined when NO_SYS = 1
+
+ 2009-08-30 Simon Goldschmidt
+ * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
+ function" by checking for loopback before calling ip_frag
+
+ 2009-08-25 Simon Goldschmidt
+ * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
+
+ 2009-08-23 Simon Goldschmidt
+ * ppp.c: bug #27078: Possible memory leak in pppInit()
+
+ 2009-08-23 Simon Goldschmidt
+ * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
+ is error.
+
+ 2009-08-23 Simon Goldschmidt
+ * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
+ Fixed wrong parenthesis, added check in init.c
+
+ 2009-08-23 Simon Goldschmidt
+ * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
+
+ 2009-08-23 Simon Goldschmidt
+ * many ppp files: bug #27267: Added include to string.h where needed
+
+ 2009-08-23 Simon Goldschmidt
+ * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
+
+
+(STABLE-1.3.1)
+
+ ++ New features:
+
+ 2009-05-10 Simon Goldschmidt
+ * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
+ LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
+ one pbuf to help MACs that don't support scatter-gather DMA.
+
+ 2009-05-09 Simon Goldschmidt
+ * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
+ ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
+
+ 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
+ * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
+ extended info about the currently received packet.
+
+ 2009-04-27 Simon Goldschmidt
+ * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
+
+ 2009-04-25 Simon Goldschmidt
+ * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
+ bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
+
+ 2009-04-21 Simon Goldschmidt
+ * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
+ hosts table. New configuration options DNS_LOCAL_HOSTLIST and
+ DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
+ as an external function for lookup.
+
+ 2009-04-15 Simon Goldschmidt
+ * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
+
+ 2009-03-31 Kieran Mansley
+ * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
+ TCP timestamp options, off by default. Rework tcp_enqueue() to
+ take option flags rather than specified option data
+
+ 2009-02-18 Simon Goldschmidt
+ * cc.h: Added printf formatter for size_t: SZT_F
+
+ 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
+ * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
+ pings
+
+ 2009-02-12 Simon Goldschmidt
+ * init.h: Added LWIP_VERSION to get the current version of the stack
+
+ 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
+ * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
+ of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
+ is otherwise used)
+
+ 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
+ * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
+ is only used by UDPLITE at present, so conditionalise it.
+
+ 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
+ * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
+ "seed" address. This should reduce AUTOIP conflicts if
+ LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
+
+ 2008-10-02 Jonathan Larmour and Rishi Khan
+ * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
+ socket.
+
+ 2008-06-30 Simon Goldschmidt
+ * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
+ interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
+ mem_free to run between mem_malloc iterations. Added illegal counter for
+ mem stats.
+
+ 2008-06-27 Simon Goldschmidt
+ * stats.h/.c, some other files: patch #6483: stats module improvement:
+ Added defines to display each module's statistic individually, added stats
+ defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
+
+ 2008-06-17 Simon Goldschmidt
+ * err.h: patch #6459: Made err_t overridable to use a more efficient type
+ (define LWIP_ERR_T in cc.h)
+
+ 2008-06-17 Simon Goldschmidt
+ * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
+ to loopif
+
+ 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
+ * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
+ modified version of patch # 6370: Moved loopif code to netif.c so that
+ loopback traffic is supported on all netifs (all local IPs).
+ Added option to limit loopback packets for each netifs.
+
+
+ ++ Bugfixes:
+ 2009-08-12 Kieran Mansley
+ * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
+ out of window or out of order properly
+
+ 2009-08-12 Kieran Mansley
+ * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
+
+ 2009-07-28 Simon Goldschmidt
+ * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
+
+ 2009-07-27 Kieran Mansley
+ * api.h api_msg.h netdb.h sockets.h: add missing #include directives
+
+ 2009-07-09 Kieran Mansley
+ * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
+ recv_avail and don't increment counters until message successfully
+ sent to mbox
+
+ 2009-06-25 Kieran Mansley
+ * api_msg.c api.h: BUG26722: initialise netconn write variables
+ in netconn_alloc
+
+ 2009-06-25 Kieran Mansley
+ * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
+
+ 2009-06-25 Kieran Mansley
+ * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
+ simultaneous close behaviour, and make snd_nxt have the same meaning
+ as in the RFCs.
+
+ 2009-05-12 Simon Goldschmidt
+ * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
+ arp_table / uses etharp_query" by adding etharp_gratuitous()
+
+ 2009-05-12 Simon Goldschmidt
+ * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
+ to the IP header (used by igmp_ip_output_if)
+
+ 2009-05-06 Simon Goldschmidt
+ * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
+ defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
+
+ 2009-05-05 Simon Goldschmidt
+ * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
+ to crash
+
+ 2009-05-04 Simon Goldschmidt
+ * init.c: snmp was not initialized in lwip_init()
+
+ 2009-05-04 Frédéric Bernon
+ * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
+
+ 2009-05-03 Simon Goldschmidt
+ * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
+ (and unsent->next == NULL)
+
+ 2009-05-02 Simon Goldschmidt
+ * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
+ 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
+
+ 2009-05-02 Simon Goldschmidt
+ * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
+
+ 2009-05-01 Simon Goldschmidt
+ * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
+
+ 2009-05-01 Simon Goldschmidt
+ * ppp.c: bug #24228: Memory corruption with PPP and DHCP
+
+ 2009-04-29 Frédéric Bernon
+ * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
+ SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
+ of broadcast packets even when this option wasn't set. Port maintainers
+ which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
+ If you want this option also filter broadcast on recv operations, you also
+ have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
+
+ 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
+ * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
+ DHCP/AUTOIP cooperation
+
+ 2009-04-25 Simon Goldschmidt, Oleg Tyshev
+ * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
+ Fixed by sorting the unsent and unacked queues (segments are inserted at the
+ right place in tcp_output and tcp_rexmit).
+
+ 2009-04-25 Simon Goldschmidt
+ * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
+ when debugging": memp_sizes contained the wrong sizes (including sanity
+ regions); memp pools for MEM_USE_POOLS were too small
+
+ 2009-04-24 Simon Goldschmidt, Frédéric Bernon
+ * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
+ behavior, with with ip address string not ended by a '\0', a space or a
+ end of line)
+
+ 2009-04-19 Simon Goldschmidt
+ * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
+ pcb->err is called, not pcb->connected (with an error code).
+
+ 2009-04-19 Simon Goldschmidt
+ * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
+ no-copy-tcpwrite": deallocate option data, only concat segments with same flags
+
+ 2009-04-19 Simon Goldschmidt
+ * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
+ in the header pbuf, not the data pbuf)
+
+ 2009-04-18 Simon Goldschmidt
+ * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
+
+ 2009-04-15 Simon Goldschmidt
+ * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
+
+ 2009-04-15 Simon Goldschmidt
+ * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
+
+ 2009-04-15 Simon Goldschmidt
+ * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
+ ip_hinted_output() (for smaller code mainly)
+
+ 2009-04-15 Simon Goldschmidt
+ * inet.c: patch #6765: Supporting new line characters in inet_aton()
+
+ 2009-04-15 Simon Goldschmidt
+ * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
+ Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
+ is big enough in dhcp_start
+
+ 2009-04-15 Simon Goldschmidt
+ * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
+
+ 2009-04-15 Simon Goldschmidt
+ * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
+
+ 2009-04-15 Simon Goldschmidt
+ * sockets.c: bug #26121: set_errno can be overridden
+
+ 2009-04-09 Kieran Mansley (patch from Luca Ceresoli )
+ * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
+ LWIP_TCP==0
+
+ 2009-04-09 Kieran Mansley (patch from Roy Lee )
+ * tcp.h: Patch#6802 Add do-while-clauses to those function like
+ macros in tcp.h
+
+ 2009-03-31 Kieran Mansley
+ * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
+ updates are calculated and sent (BUG20515)
+
+ * tcp_in.c: cope with SYN packets received during established states,
+ and retransmission of initial SYN.
+
+ * tcp_out.c: set push bit correctly when tcp segments are merged
+
+ 2009-03-27 Kieran Mansley
+ * tcp_out.c set window correctly on probes (correcting change made
+ yesterday)
+
+ 2009-03-26 Kieran Mansley
+ * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
+ connections where no reset required (bug #25622)
+
+ * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
+ (bug #20779)
+
+ 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
+ * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
+ too small depending on MEM_ALIGNMENT
+
+ 2009-02-16 Simon Goldschmidt
+ * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
+ converted size argument of netconn_write to 'size_t'
+
+ 2009-02-16 Simon Goldschmidt
+ * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
+ by moving accept callback function pointer to TCP_PCB_COMMON
+
+ 2009-02-12 Simon Goldschmidt
+ * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
+ option)
+
+ 2009-02-11 Simon Goldschmidt
+ * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
+
+ 2009-02-11 Simon Goldschmidt
+ * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
+ RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
+
+ 2009-02-10 Simon Goldschmidt
+ * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
+ Accepts_pending is decrease on a corresponding listen pcb when a connection
+ in state SYN_RCVD is close.
+
+ 2009-01-28 Jonathan Larmour
+ * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
+ out of pool pbufs.
+
+ 2008-12-19 Simon Goldschmidt
+ * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
+
+ 2008-12-10 Tamas Somogyi, Frédéric Bernon
+ * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
+ port uses deleted netbuf.
+
+ 2008-10-18 Simon Goldschmidt
+ * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
+ in tcp_parseopt
+
+ 2008-10-15 Simon Goldschmidt
+ * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
+ by packing the struct ip_reass_helper.
+
+ 2008-10-03 David Woodhouse, Jonathan Larmour
+ * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
+
+ 2008-10-02 Jonathan Larmour
+ * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
+ padding is included.
+
+ 2008-09-30 Jonathan Larmour
+ * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
+ assertion check that addrlen isn't NULL.
+
+ 2008-09-30 Jonathan Larmour
+ * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
+
+ 2008-08-26 Simon Goldschmidt
+ * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
+ inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
+
+ 2008-08-14 Simon Goldschmidt
+ * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
+ tcp_close returns != ERR_OK)
+
+ 2008-07-08 Frédéric Bernon
+ * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
+ in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
+
+ 2008-06-24 Jonathan Larmour
+ * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
+ if tcp_seg_copy fails.
+
+ 2008-06-17 Simon Goldschmidt
+ * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
+ and created defines for swapping bytes and folding u32 to u16.
+
+ 2008-05-30 Kieran Mansley
+ * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
+ rather than rcv_ann_wnd when deciding if packets are in-window.
+ Contributed by
+
+ 2008-05-30 Kieran Mansley
+ * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
+ passing as function pointers when MEM_LIBC_MALLOC is defined.
+
+ 2008-05-09 Jonathan Larmour
+ * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
+ stop it being treated as a fatal error.
+
+ 2008-04-15 Simon Goldschmidt
+ * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
+ (flag now cleared)
+
+ 2008-03-27 Simon Goldschmidt
+ * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
+ from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
+ in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
+ or heap memory from interrupt context
+
+ 2008-03-26 Simon Goldschmidt
+ * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
+ host sent a zero mss as TCP option.
+
+
+(STABLE-1.3.0)
+
+ ++ New features:
+
+ 2008-03-10 Jonathan Larmour
+ * inet_chksum.c: Allow choice of one of the sample algorithms to be
+ made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
+
+ 2008-01-22 Frédéric Bernon
+ * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
+ TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
+
+ 2008-01-14 Frédéric Bernon
+ * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
+ to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
+ tcp_recv callback (see rawapi.txt).
+
+ 2008-01-14 Frédéric Bernon, Marc Chaland
+ * ip.c: Integrate patch #6369" ip_input : checking before realloc".
+
+ 2008-01-12 Frédéric Bernon
+ * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
+ netconn::sem per netconn::op_completed like suggested for the task #7490
+ "Add return value to sys_mbox_post".
+
+ 2008-01-12 Frédéric Bernon
+ * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
+ DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
+ sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
+
+ 2008-01-10 Frédéric Bernon
+ * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
+ "Add return value to sys_mbox_post". tcpip_callback is always defined as
+ "blocking" ("block" parameter = 1).
+
+ 2008-01-10 Frédéric Bernon
+ * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
+ netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
+ "Add return value to sys_mbox_post".
+
+ 2008-01-05 Frédéric Bernon
+ * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
+ Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
+ modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
+ indicate the number of pointers query by the mailbox. There is three defines
+ in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
+ netconn::acceptmbox. Port maintainers, you can decide to just add this new
+ parameter in your implementation, but to ignore it to keep the previous behavior.
+ The new sys_mbox_trypost function return a value to know if the mailbox is
+ full or if the message is posted. Take a look to sys_arch.txt for more details.
+ This new function is used in tcpip_input (so, can be called in an interrupt
+ context since the function is not blocking), and in recv_udp and recv_raw.
+
+ 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
+ * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
+ tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
+ "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
+ documentation in the rawapi.txt file.
+
+ 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
+ * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
+
+ 2007-12-31 Frédéric Bernon, Luca Ceresoli
+ * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
+ in autoip". The change in etharp_raw could be removed, since all calls to
+ etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
+ wrong in the future.
+
+ 2007-12-30 Frédéric Bernon, Tom Evans
+ * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
+ Filtering" reported by Tom Evans.
+
+ 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
+ * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
+ sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
+ applications have to call 'tcp_accepted(pcb)' in their accept callback to
+ keep accepting new connections.
+
+ 2007-12-13 Frédéric Bernon
+ * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
+ by err_t type. Add a new err_t code "ERR_INPROGRESS".
+
+ 2007-12-12 Frédéric Bernon
+ * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
+ are the one which have ram usage.
+
+ 2007-12-05 Frédéric Bernon
+ * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
+ set of variables (=0) or a local one (=1). In this last case, your port should
+ provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
+ which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
+
+ 2007-12-03 Simon Goldschmidt
+ * ip.c: ip_input: check if a packet is for inp first before checking all other
+ netifs on netif_list (speeds up packet receiving in most cases)
+
+ 2007-11-30 Simon Goldschmidt
+ * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
+ UDP: move a (connected) pcb selected for input to the front of the list of
+ pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
+ a packet.
+
+ 2007-11-28 Simon Goldschmidt
+ * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
+
+ 2007-11-25 Simon Goldschmidt
+ * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
+ algorithm.
+
+ 2007-11-24 Simon Goldschmidt
+ * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
+ to the new file netdb.c; included lwip_getaddrinfo.
+
+ 2007-11-21 Simon Goldschmidt
+ * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
+ based on the MTU of the netif used to send. Enabled by default. Disable by
+ setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
+
+ 2007-11-19 Frédéric Bernon
+ * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
+ received match the name query), implement DNS_USES_STATIC_BUF (the place where
+ copy dns payload to parse the response), return an error if there is no place
+ for a new query, and fix some minor problems.
+
+ 2007-11-16 Simon Goldschmidt
+ * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
+ removed files: core/inet.c, core/inet6.c
+ Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
+ inet and chksum part; changed includes in all lwIP files as appropriate
+
+ 2007-11-16 Simon Goldschmidt
+ * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
+ dns resolver function for netconn api (netconn_gethostbyname) and socket api
+ (gethostbyname/gethostbyname_r).
+
+ 2007-11-15 Jim Pettinato, Frédéric Bernon
+ * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
+ requests with RAW api interface. Initialization is done in lwip_init() with
+ build time options. DNS timer is added in tcpip_thread context. DHCP can set
+ DNS server ip addresses when options are received. You need to set LWIP_DNS=1
+ in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
+ some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
+ list with points to improve.
+
+ 2007-11-06 Simon Goldschmidt
+ * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
+ enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
+ for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
+
+ 2007-11-06 Simon Goldschmidt
+ * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
+ core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
+ implementation from netconn api applications.
+
+ 2007-11-03 Frédéric Bernon
+ * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
+ RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
+ by default). Netconn API users can use the netconn_recv_bufsize macro to access
+ it. This is a first release which have to be improve for TCP. Note it used the
+ netconn::recv_avail which need to be more "thread-safe" (note there is already
+ the problem for FIONREAD with lwip_ioctl/ioctlsocket).
+
+ 2007-11-01 Frédéric Bernon, Marc Chaland
+ * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
+ Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
+ layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
+ layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
+ Note that previous "copy" parameter for "write" APIs is now called "apiflags".
+
+ 2007-10-24 Frédéric Bernon
+ * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
+ TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
+ some code (like we have talk in "patch #5919 : Create compile switch to remove
+ select code"), but it could be done later.
+
+ 2007-10-08 Simon Goldschmidt
+ * many files: Changed initialization: many init functions are not needed any
+ more since we now rely on the compiler initializing global and static
+ variables to zero!
+
+ 2007-10-06 Simon Goldschmidt
+ * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
+ to enqueue the received pbufs so that multiple packets can be reassembled
+ simultaneously and no static reassembly buffer is needed.
+
+ 2007-10-05 Simon Goldschmidt
+ * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
+ all netifs (or ports) can use it.
+
+ 2007-10-05 Frédéric Bernon
+ * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
+ common function to reduce a little bit the footprint (for all functions using
+ only the "netif" parameter).
+
+ 2007-10-03 Frédéric Bernon
+ * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
+ netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
+ a little bit the footprint (for all functions using only the "netif" parameter).
+
+ 2007-09-15 Frédéric Bernon
+ * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
+ option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
+ netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
+ IP_MULTICAST_TTL and IP_MULTICAST_IF.
+
+ 2007-09-10 Frédéric Bernon
+ * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
+ even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
+ each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
+ decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
+ call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
+ or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
+ This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
+ snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
+ when it's queried (any direct call to "sysuptime" is changed by a call to
+ snmp_get_sysuptime).
+
+ 2007-09-09 Frédéric Bernon, Bill Florac
+ * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
+ and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
+ if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
+ igmp_report_groups() is now called inside netif_set_link_up() (need to have
+ LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
+ the next query message to receive the matching multicast streams).
+
+ 2007-09-08 Frédéric Bernon
+ * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
+ IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
+ Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
+ Enable to access to these fields with LWIP_TCP=0.
+
+ 2007-09-05 Frédéric Bernon
+ * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
+ ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
+ LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
+ Be careful, disabling ICMP make your product non-compliant to RFC1122, but
+ help to reduce footprint, and to reduce "visibility" on the Internet.
+
+ 2007-09-05 Frédéric Bernon, Bill Florac
+ * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
+ for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
+ parameters have to be provided: a task name, and a task stack size. For this
+ one, since it's platform dependant, you could define the best one for you in
+ your lwipopts.h. For port maintainers, you can just add these new parameters
+ in your sys_arch.c file, and but it's not mandatory, use them in your OS
+ specific functions.
+
+ 2007-09-05 Frédéric Bernon
+ * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
+ inside init.c for task #7142 "Sanity check user-configurable values".
+
+ 2007-09-04 Frédéric Bernon, Bill Florac
+ * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
+ memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
+ value). It will avoid potential fragmentation problems, use a counter to know
+ how many times a group is used on an netif, and free it when all applications
+ leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
+ check if LWIP_IGMP!=0).
+
+ 2007-09-03 Frédéric Bernon
+ * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
+ Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
+ the netif's "init" function). Use the "imr_interface" field (for socket layer)
+ and/or the "interface" field (for netconn layer), for join/leave operations.
+ The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
+ This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
+
+ 2007-08-30 Frédéric Bernon
+ * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
+ from api/api_lib". Now netbuf API is independant of netconn, and can be used
+ with other API (application based on raw API, or future "socket2" API). Ports
+ maintainers just have to add src/api/netbuf.c in their makefile/projects.
+
+ 2007-08-30 Frédéric Bernon, Jonathan Larmour
+ * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
+ user-configurable values".
+
+ 2007-08-29 Frédéric Bernon
+ * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
+ igmp_start is call inside netif_add. Now, igmp initialization is in the same
+ spirit than the others modules. Modify some IGMP debug traces.
+
+ 2007-08-29 Frédéric Bernon
+ * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
+ Add lwip_init function to regroup all modules initializations, and to provide
+ a place to add code for task #7142 "Sanity check user-configurable values".
+ Ports maintainers should remove direct initializations calls from their code,
+ and add init.c in their makefiles. Note that lwip_init() function is called
+ inside tcpip_init, but can also be used by raw api users since all calls are
+ disabled when matching options are disabled. Also note that their is new options
+ in opt.h, you should configure in your lwipopts.h (they are enabled per default).
+
+ 2007-08-26 Marc Boucher
+ * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
+ since they can under certain circumstances be called with an invalid conn
+ pointer after the connection has been closed (and conn has been freed).
+
+ 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
+ * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
+ Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
+
+ 2007-08-22 Frédéric Bernon
+ * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
+ to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
+
+ 2007-08-22 Frédéric Bernon
+ * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
+ ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
+ name is tcpip_input (we keep the name of 1.2.0 function).
+
+ 2007-08-17 Jared Grubb
+ * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
+ settings into new memp_std.h and optional user file lwippools.h. This adds
+ more dynamic mempools, and allows the user to create an arbitrary number of
+ mempools for mem_malloc.
+
+ 2007-08-16 Marc Boucher
+ * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
+ otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
+ close the connection.
+
+ 2007-08-16 Marc Boucher
+ * sockets.c: lwip_accept(): check netconn_peer() error return.
+
+ 2007-08-16 Marc Boucher
+ * mem.c, mem.h: Added mem_calloc().
+
+ 2007-08-16 Marc Boucher
+ * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
+ for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
+ and starving other message types.
+ Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
+
+ 2007-08-16 Marc Boucher
+ * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
+ type and flgs (later renamed to flags).
+ Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
+ Improved lwip_recvfrom(). TCP push now propagated.
+
+ 2007-08-16 Marc Boucher
+ * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
+ provided by etharp.
+
+ 2007-08-16 Marc Boucher
+ * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
+ etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
+ Added PPPoE support and various PPP improvements.
+
+ 2007-07-25 Simon Goldschmidt
+ * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
+ making netbuf_copy_partial use this function.
+
+ 2007-07-25 Simon Goldschmidt
+ * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
+ 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
+ other stacks.
+
+ 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
+ * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
+ a link callback in the netif struct, and functions to handle it. Be carefull
+ for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
+ if you want to be sure to be compatible with future changes...
+
+ 2007-06-30 Frédéric Bernon
+ * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
+
+ 2007-06-21 Simon Goldschmidt
+ * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
+ LWIP_AUTOIP =0 and =1 to remove redundant code.
+
+ 2007-06-21 Simon Goldschmidt
+ * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
+ MEM_USE_POOLS to use 4 pools with different sized elements instead of a
+ heap. This both prevents memory fragmentation and gives a higher speed
+ at the cost of more memory consumption. Turned off by default.
+
+ 2007-06-21 Simon Goldschmidt
+ * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
+ netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
+ int to be able to send a bigger buffer than 64K with one time (mainly
+ used from lwip_send).
+
+ 2007-06-21 Simon Goldschmidt
+ * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
+ into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
+
+ 2007-06-21 Simon Goldschmidt
+ * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
+ netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
+ changes on low memory or empty send-buffer.
+
+ 2007-06-18 Simon Goldschmidt
+ * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
+ of 6 to avoid loading netif->hwaddr_len every time (since this file is only
+ used for ethernet and struct eth_addr already had a defined length of 6).
+
+ 2007-06-17 Simon Goldschmidt
+ * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
+ to disable UDP checksum generation on transmit.
+
+ 2007-06-13 Frédéric Bernon, Simon Goldschmidt
+ * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
+ pointers or parameters, and let the possibility to redefined it in cc.h. Use
+ this macro to check "conn" parameter in api_msg.c functions.
+
+ 2007-06-11 Simon Goldschmidt
+ * sockets.c, sockets.h: Added UDP lite support for sockets
+
+ 2007-06-10 Simon Goldschmidt
+ * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
+ by default) to switch off UDP-Lite support if not needed (reduces udp.c code
+ size)
+
+ 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
+ * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
+ AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
+ LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
+ (see TODO mark in the source code).
+
+ 2007-06-09 Simon Goldschmidt
+ * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
+ etharp_output() to match netif->output so etharp_output() can be used
+ directly as netif->output to save one function call.
+
+ 2007-06-08 Simon Goldschmidt
+ * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
+ NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
+ added initialization of those to ethernetif, slipif and loopif.
+
+ 2007-05-18 Simon Goldschmidt
+ * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
+ (defaulting to off for now) that can be set to 0 to send fragmented
+ packets by passing PBUF_REFs down the stack.
+
+ 2007-05-23 Frédéric Bernon
+ * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
+ connections, such present in patch #5959.
+
+ 2007-05-23 Frédéric Bernon
+ * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
+ code in only one part...
+
+ 2007-05-18 Simon Goldschmidt
+ * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
+ elements to overflow. This is achieved by adding some bytes before and after
+ each pool element (increasing their size, of course), filling them with a
+ prominent value and checking them on freeing the element.
+ Set it to 2 to also check every element in every pool each time memp_malloc()
+ or memp_free() is called (slower but more helpful).
+
+ 2007-05-10 Simon Goldschmidt
+ * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
+ PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
+ code size.
+
+ 2007-05-11 Frédéric Bernon
+ * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
+ Include a function pointer instead of a table index in the message to reduce
+ footprint. Disable some part of lwip_send and lwip_sendto if some options are
+ not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
+
+ 2007-05-10 Simon Goldschmidt
+ * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
+ \ extern "C" {' in all header files. Now you can write your application using
+ the lwIP stack in C++ and simply #include the core files. Note I have left
+ out the netif/ppp/*h header files for now, since I don't know which files are
+ included by applications and which are for internal use only.
+
+ 2007-05-09 Simon Goldschmidt
+ * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
+ memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
+ situations where some compilers might inline the copy and save a function
+ call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
+
+ 2007-05-08 Simon Goldschmidt
+ * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
+ to be overriden in case the C-library malloc implementation is not protected
+ against concurrent access.
+
+ 2007-05-04 Simon Goldschmidt (Atte Kojo)
+ * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
+ multiple packets to the same host.
+
+ 2007-05-04 Frédéric Bernon, Jonathan Larmour
+ * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
+ to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
+ netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
+ sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
+ Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
+ these fields are now renamed "addr" & "port".
+
+ 2007-04-11 Jonathan Larmour
+ * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
+ sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
+ with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
+ by the port in sys_arch.h if desired.
+
+ 2007-04-06 Frédéric Bernon, Simon Goldschmidt
+ * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
+ allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
+ clients, using new functions from netifapi.h. Disable as default (no port change to do).
+
+ 2007-04-05 Frédéric Bernon
+ * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
+
+ 2007-04-04 Simon Goldschmidt
+ * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
+ use this for and architecture-independent form to tell the compiler you intentionally
+ are not using this variable. Can be overriden in cc.h.
+
+ 2007-03-28 Frédéric Bernon
+ * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
+ define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
+ string, point on one of your's ethernetif field, or alloc a string you will free yourself).
+ It will be used by DHCP to register a client hostname, but can also be use when you call
+ snmp_set_sysname.
+
+ 2007-03-28 Frédéric Bernon
+ * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
+ initialize a network interface's flag with. It tell this interface is an ethernet
+ device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
+ Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
+
+ 2007-03-26 Frédéric Bernon, Jonathan Larmour
+ * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
+ time if you only use PPP or SLIP. The default is enable. Note we don't have to call
+ etharp_init in your port's initilization sequence if you use tcpip.c, because this call
+ is done in tcpip_init function.
+
+ 2007-03-22 Frédéric Bernon
+ * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
+ new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
+ your lwipopts.h. More, unused counters are not defined in the stats structs, and not
+ display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
+ but never used. Fix msg_in.c with the correct #if test for a stat display.
+
+ 2007-03-21 Kieran Mansley
+ * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
+ Provides callback on netif up/down state change.
+
+ 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
+ * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
+ ip.c, netif.h, tcpip.c, opt.h:
+ New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
+ filter per all network interfaces. Declare a new function in netif to enable to
+ control the MAC filter (to reduce lwIP traffic processing).
+
+ 2007-03-11 Frédéric Bernon
+ * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
+ be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
+ unless you know what you're doing (default are RFC1122 compliant). Note
+ that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
+
+ 2007-03-08 Frédéric Bernon
+ * tcp.h: Keepalive values can be configured at compile time, but don't change
+ this unless you know what you're doing (default are RFC1122 compliant).
+
+ 2007-03-08 Frédéric Bernon
+ * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
+ Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
+ on UDP sockets/netconn.
+
+ 2007-03-08 Simon Goldschmidt
+ * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
+
+ 2007-03-06 Frédéric Bernon
+ * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
+ Implement SO_RCVTIMEO on UDP sockets/netconn.
+
+ 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
+ * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
+ on the stack and remove the API msg type from memp
+
+ 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
+ * sockets.h, sockets.c: Move socket initialization to new
+ lwip_socket_init() function.
+ NOTE: this changes the API with ports. Ports will have to be
+ updated to call lwip_socket_init() now.
+
+ 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
+ * api_lib.c: Use memcpy in netbuf_copy_partial.
+
+
+ ++ Bug fixes:
+
+ 2008-03-17 Frédéric Bernon, Ed Kerekes
+ * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
+ some problems to fill the IP header on some targets, use now the
+ ip.h macros to do it).
+
+ 2008-03-13 Frédéric Bernon
+ * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
+ (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
+ TCP connection caused a crash. Note that using (lwip_)recvfrom
+ like this is a bit slow and that using (lwip)getpeername is the
+ good lwip way to do it (so, using recv is faster on tcp sockets).
+
+ 2008-03-12 Frédéric Bernon, Jonathan Larmour
+ * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
+ recv_raw() does not consume data", and the ping sample (with
+ LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
+ returned the IP payload, without the IP header).
+
+ 2008-03-04 Jonathan Larmour
+ * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
+ and/or warnings on some systems where mem_size_t and size_t differ.
+ * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
+
+ 2008-03-04 Kieran Mansley (contributions by others)
+ * Numerous small compiler error/warning fixes from contributions to
+ mailing list after 1.3.0 release candidate made.
+
+ 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
+ * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
+
+ 2008-01-15 Kieran Mansley
+ * tcp_out.c: BUG20511. Modify persist timer to start when we are
+ prevented from sending by a small send window, not just a zero
+ send window.
+
+ 2008-01-09 Jonathan Larmour
+ * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
+ conflict with Linux system headers.
+
+ 2008-01-06 Jonathan Larmour
+ * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
+ address entirely on receiving a DHCPNAK, and restarting discovery.
+
+ 2007-12-21 Simon Goldschmidt
+ * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
+ is not protected" by using new macros for interlocked access to modify/test
+ netconn->recv_avail.
+
+ 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
+ * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
+
+ 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
+ * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
+ of silly window avoidance and prevent lwIP from shrinking the window)
+
+ 2007-12-04 Simon Goldschmidt
+ * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
+ data packet was lost): add assert that all segment lists are empty in
+ tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
+ state from LAST_ACK in tcp_process
+
+ 2007-12-02 Simon Goldschmidt
+ * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
+ If including for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
+ has to be set to 0 in lwipopts.h
+
+ 2007-12-02 Simon Goldschmidt
+ * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
+ allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
+ netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
+ This is a fix for thread-safety and allocates all items needed for a netconn
+ when the netconn is created.
+
+ 2007-11-30 Simon Goldschmidt
+ * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
+ netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
+ to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
+ port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
+
+ 2007-11-27 Simon Goldschmidt
+ * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
+ letting ip_route only use netifs that are up.
+
+ 2007-11-27 Simon Goldschmidt
+ * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
+ and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
+ sockets block most operations once they have seen a fatal error.
+
+ 2007-11-27 Simon Goldschmidt
+ * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
+ netif to send as an argument (to be able to send on netifs that are down).
+
+ 2007-11-26 Simon Goldschmidt
+ * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
+ arrive out-of-order
+
+ 2007-11-21 Simon Goldschmidt
+ * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
+ Fixed the nagle algorithm; nagle now also works for all raw API applications
+ and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
+
+ 2007-11-12 Frédéric Bernon
+ * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
+ of the netconn_peer and netconn_addr processing is done inside tcpip_thread
+ context in do_getaddr.
+
+ 2007-11-10 Simon Goldschmidt
+ * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
+ happen any time). Now the packet simply isn't enqueued when out of memory.
+
+ 2007-11-01 Simon Goldschmidt
+ * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
+ TCP_MSS if that is smaller) as long as no MSS option is received from the
+ remote host.
+
+ 2007-11-01 Simon Goldschmidt
+ * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
+ is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
+ sending our configured TCP_MSS instead of the one received).
+
+ 2007-11-01 Simon Goldschmidt
+ * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
+ calculated based on the configured TCP_MSS, not on the MSS option received
+ with SYN+ACK.
+
+ 2007-10-09 Simon Goldschmidt
+ * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
+ short and also was generated wrong if checksum coverage != tot_len;
+ receive: checksum was calculated wrong if checksum coverage != tot_len
+
+ 2007-10-08 Simon Goldschmidt
+ * mem.c: lfree was not updated in mem_realloc!
+
+ 2007-10-07 Frédéric Bernon
+ * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
+ crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
+ this change cause an API breakage for netconn_addr, since a parameter
+ type change. Any compiler should cause an error without any changes in
+ yours netconn_peer calls (so, it can't be a "silent change"). It also
+ reduce a little bit the footprint for socket layer (lwip_getpeername &
+ lwip_getsockname use now a common lwip_getaddrname function since
+ netconn_peer & netconn_addr have the same parameters).
+
+ 2007-09-20 Simon Goldschmidt
+ * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
+ by checking tcp_tw_pcbs also
+
+ 2007-09-19 Simon Goldschmidt
+ * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
+
+ 2007-09-15 Mike Kleshov
+ * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
+
+ 2007-09-06 Frédéric Bernon
+ * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
+ it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
+ already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
+ if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
+
+ 2007-08-30 Frédéric Bernon
+ * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
+ and fix some coding style.
+
+ 2007-08-28 Frédéric Bernon
+ * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
+ kind of packets. These packets are considered like Ethernet packets (payload
+ pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
+ are considered like IP packets (payload pointing to iphdr).
+
+ 2007-08-27 Frédéric Bernon
+ * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
+ problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
+ and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
+
+ 2007-08-24 Kieran Mansley
+ * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
+ compiler (Paradigm C++)
+
+ 2007-08-09 Frédéric Bernon, Bill Florac
+ * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
+ Introduce IGMP_STATS to centralize statistics management.
+
+ 2007-08-09 Frédéric Bernon, Bill Florac
+ * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
+ packet on a udp pcb binded on an netif's IP address, and not on "any".
+
+ 2007-08-09 Frédéric Bernon, Bill Florac
+ * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
+ This is mainly on using lookup/lookfor, and some coding styles...
+
+ 2007-07-26 Frédéric Bernon (and "thedoctor")
+ * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
+
+ 2007-07-25 Simon Goldschmidt
+ * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
+ tcp_output fails in tcp_close, the code in do_close_internal gets simpler
+ (tcp_output is called again later from tcp timers).
+
+ 2007-07-25 Simon Goldschmidt
+ * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
+ copy_from_pbuf, which illegally modified the given pbuf.
+
+ 2007-07-25 Simon Goldschmidt
+ * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
+ changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
+
+ 2007-07-24 Simon Goldschmidt
+ * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
+ correct state (must be CLOSED).
+
+ 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
+ * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
+ allocation. It now returns NULL.
+
+ 2007-07-13 Frédéric Bernon
+ * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
+ all error cases.
+
+ 2007-07-13 Frédéric Bernon
+ * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
+ because current code doesn't follow rawapi.txt documentation.
+
+ 2007-07-13 Kieran Mansley
+ * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
+ out of sequence processing of received packets
+
+ 2007-07-03 Simon Goldschmidt
+ * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
+ assumption is made that this pbuf is in one piece (i.e. not chained). These
+ assumptions clash with the possibility of converting to fully pool-based
+ pbuf implementations, where PBUF_RAM pbufs might be chained.
+
+ 2007-07-03 Simon Goldschmidt
+ * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
+ when closing tcp netconns: removed conn->sem, less context switches when
+ closing, both netconn_close and netconn_delete should safely close tcp
+ connections.
+
+ 2007-07-02 Simon Goldschmidt
+ * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
+ tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
+ to cache ARP table indices with each pcb instead of single-entry cache for
+ the complete stack.
+
+ 2007-07-02 Simon Goldschmidt
+ * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
+ warnings when assigning to smaller types.
+
+ 2007-06-28 Simon Goldschmidt
+ * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
+
+ 2007-06-28 Simon Goldschmidt
+ * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
+ a segment contained chained pbufs)
+
+ 2007-06-28 Frédéric Bernon
+ * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
+ a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
+ possible to define this macro in your own lwipopts.h to always use C library's
+ rand(). Note that autoip_create_rand_addr doesn't use this macro.
+
+ 2007-06-28 Frédéric Bernon
+ * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
+ LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
+ in api_lib/api_msg (use pointers and not type with table, etc...)
+
+ 2007-06-26 Simon Goldschmidt
+ * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
+
+ 2007-06-25 Simon Goldschmidt
+ * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
+ for udp packets with no matching pcb.
+
+ 2007-06-25 Simon Goldschmidt
+ * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
+ could get udp input packets if the remote side matched.
+
+ 2007-06-13 Simon Goldschmidt
+ * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
+ changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
+
+ 2007-06-13 Simon Goldschmidt
+ * api_msg.c: pcb_new sets conn->err if protocol is not implemented
+ -> netconn_new_..() does not allocate a new connection for unsupported
+ protocols.
+
+ 2007-06-13 Frédéric Bernon, Simon Goldschmidt
+ * api_lib.c: change return expression in netconn_addr and netconn_peer, because
+ conn->err was reset to ERR_OK without any reasons (and error was lost)...
+
+ 2007-06-13 Frédéric Bernon, Matthias Weisser
+ * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
+ MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
+ some macro names collision with some OS macros.
+
+ 2007-06-11 Simon Goldschmidt
+ * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
+ create checksum over the complete packet. On RX, if it's < 8 (and not 0),
+ discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
+ UDP & UDP Lite.
+
+ 2007-06-11 Srinivas Gollakota & Oleg Tyshev
+ * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
+ where TCP flags wasn't initialized in tcp_keepalive.
+
+ 2007-06-03 Simon Goldschmidt
+ * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
+ registered, p->payload was modified without modifying p->len if sending
+ icmp_dest_unreach() (had no negative effect but was definitively wrong).
+
+ 2007-06-03 Simon Goldschmidt
+ * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
+ re-used the input pbuf even if that didn't have enough space to include the
+ link headers. Now the space is tested and a new pbuf is allocated for the
+ echo response packet if the echo request pbuf isn't big enough.
+
+ 2007-06-01 Simon Goldschmidt
+ * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
+
+ 2007-05-23 Frédéric Bernon
+ * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
+ allocated by do_listen if success) and netconn_accept errors handling. In
+ most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
+ by ASSERT, except for netconn_delete.
+
+ 2007-05-23 Frédéric Bernon
+ * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
+ an error code if it's impossible to fetch a pbuf on a TCP connection (and not
+ directly close the recvmbox).
+
+ 2007-05-22 Simon Goldschmidt
+ * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
+ bound but unconnected (and non-listening) tcp_pcbs.
+
+ 2007-05-22 Frédéric Bernon
+ * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
+ used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
+ sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
+ like "sys_timeout" in their application threads.
+
+ 2007-05-22 Frédéric Bernon
+ * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
+ which parameters are used by which do_xxx function, and to avoid "misusing"
+ parameters (patch #5938).
+
+ 2007-05-22 Simon Goldschmidt
+ * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
+ changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
+ is only 8 bits wide. This affects the api, as there, the protocol was
+ u16_t, too.
+
+ 2007-05-18 Simon Goldschmidt
+ * memp.c: addition to patch #5913: smaller pointer was returned but
+ memp_memory was the same size -> did not save memory.
+
+ 2007-05-16 Simon Goldschmidt
+ * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
+ != ERR_OK.
+
+ 2007-05-16 Simon Goldschmidt
+ * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
+ as the one of the netif used for sending to prevent sending from old
+ addresses after a netif address gets changed (partly fixes bug #3168).
+
+ 2007-05-16 Frédéric Bernon
+ * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
+ with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
+ tcpip_init) because we have to be sure that network interfaces are already
+ added (mac filter is updated only in igmp_init for the moment).
+
+ 2007-05-16 Simon Goldschmidt
+ * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
+ into sys_arch_sem_wait calls to prevent timers from running while waiting
+ for the heap. This fixes bug #19167.
+
+ 2007-05-13 Simon Goldschmidt
+ * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
+ for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
+ tcp.h to sockets.h.
+
+ 2007-05-07 Simon Goldschmidt
+ * mem.c: Another attempt to fix bug #17922.
+
+ 2007-05-04 Simon Goldschmidt
+ * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
+ implementation so that it can be reused (don't allocate the target
+ pbuf inside pbuf_copy()).
+
+ 2007-05-04 Simon Goldschmidt
+ * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
+ to save a little RAM (next pointer of memp is not used while not in pool).
+
+ 2007-05-03 "maq"
+ * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
+ (patch #3574).
+
+ 2007-04-23 Simon Goldschmidt
+ * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
+ in NULL reference for incoming TCP packets". Loopif has to be configured
+ (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
+ (multithreading environments, e.g. netif->input() = tcpip_input()) or
+ putting packets on a list that is fed to the stack by calling loopif_poll()
+ (single-thread / NO_SYS / polling environment where e.g.
+ netif->input() = ip_input).
+
+ 2007-04-17 Jonathan Larmour
+ * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
+ the difference between two u16_t's.
+ * sockets.h: FD_SETSIZE needs to match number of sockets, which is
+ MEMP_NUM_NETCONN in sockets.c right now.
+
+ 2007-04-12 Jonathan Larmour
+ * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
+
+ 2007-04-12 Kieran Mansley
+ * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
+ timer is reset to fix bug#19434, with help from Oleg Tyshev.
+
+ 2007-04-11 Simon Goldschmidt
+ * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
+ previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
+ pbuf.c: removed functions no needed any more (by etharp).
+
+ 2007-04-11 Kieran Mansley
+ * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
+ "Constant is long" warnings with 16bit compilers. Contributed by
+ avatar@mmlab.cse.yzu.edu.tw
+
+ 2007-04-05 Frédéric Bernon, Jonathan Larmour
+ * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
+ the mailbox is active". Now, the post is only done during a connect, and do_send,
+ do_write and do_join_leave_group don't do anything if a previous error was signaled.
+
+ 2007-04-03 Frédéric Bernon
+ * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
+ packets. See patch #5834.
+
+ 2007-03-30 Frédéric Bernon
+ * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
+ missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
+
+ 2007-03-30 Frédéric Bernon
+ * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
+ others environment defines (these were too "generic").
+
+ 2007-03-28 Frédéric Bernon
+ * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
+ result and can cause a crash. lwip_send now check netbuf_ref result.
+
+ 2007-03-28 Simon Goldschmidt
+ * sockets.c Remove "#include " from sockets.c to avoid multiple
+ definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
+ defined. This is the way it should have been already (looking at
+ doc/sys_arch.txt)
+
+ 2007-03-28 Kieran Mansley
+ * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
+ IP and TCP headers *and* physical link headers
+
+ 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
+ * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
+ to send some garbage. It is not a definitive solution, but the patch does solve
+ the problem for most cases.
+
+ 2007-03-22 Frédéric Bernon
+ * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
+
+ 2007-03-22 Frédéric Bernon
+ * api_lib.c: somes resources couldn't be freed if there was errors during
+ netconn_new_with_proto_and_callback.
+
+ 2007-03-22 Frédéric Bernon
+ * ethernetif.c: update netif->input calls to check return value. In older ports,
+ it's a good idea to upgrade them, even if before, there could be another problem
+ (access to an uninitialized mailbox).
+
+ 2007-03-21 Simon Goldschmidt
+ * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
+ by casting to unsigned).
+
+ 2007-03-21 Frédéric Bernon
+ * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
+ api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
+ dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
+ Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
+ faster and more reliable communication between api_lib and tcpip.
+
+ 2007-03-21 Frédéric Bernon
+ * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
+
+ 2007-03-21 Frédéric Bernon
+ * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
+
+ 2007-03-21 Kieran Mansley
+ * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
+ IP and TCP headers
+
+ 2007-03-21 Kieran Mansley
+ * Fix all uses of pbuf_header to check the return value. In some
+ cases just assert if it fails as I'm not sure how to fix them, but
+ this is no worse than before when they would carry on regardless
+ of the failure.
+
+ 2007-03-21 Kieran Mansley
+ * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
+ comment out missing header include in icmp.c
+
+ 2007-03-20 Frédéric Bernon
+ * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
+ synchronized with memp.h.
+
+ 2007-03-20 Frédéric Bernon
+ * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
+ tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
+ network interfaces. Also fix a compiler warning.
+
+ 2007-03-20 Kieran Mansley
+ * udp.c: Only try and use pbuf_header() to make space for headers if
+ not a ROM or REF pbuf.
+
+ 2007-03-19 Frédéric Bernon
+ * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
+ and api_msg_post().
+
+ 2007-03-19 Frédéric Bernon
+ * Remove unimplemented "memp_realloc" function from memp.h.
+
+ 2007-03-11 Simon Goldschmidt
+ * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
+ memory corruption.
+
+ 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
+ * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
+ (missing `const' qualifier in socket functions), to get more compatible to
+ standard POSIX sockets.
+
+ 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
+ * sockets.c: Add asserts inside bind, connect and sendto to check input
+ parameters. Remove excessive set_errno() calls after get_socket(), because
+ errno is set inside of get_socket(). Move last sock_set_errno() inside
+ lwip_close.
+
+ 2007-03-09 Simon Goldschmidt
+ * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
+ was allocated too small.
+
+ 2007-03-06 Simon Goldschmidt
+ * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
+ the stack from concurrent access.
+
+ 2007-03-06 Frédéric Bernon, Dmitry Potapov
+ * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
+ call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
+
+ 2007-03-06 Simon Goldschmidt
+ * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
+ if IP_FRAG == 0 and IP_REASSEMBLY == 0
+
+ 2007-03-06 Frédéric Bernon, Simon Goldschmidt
+ * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
+ option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
+ Allow to do ARP processing for incoming packets inside tcpip_thread
+ (protecting ARP layer against concurrent access). You can also disable
+ old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
+ Older ports have to use tcpip_ethinput.
+
+ 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
+ * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
+ from pointer target type"
+
+ 2007-03-05 Frédéric Bernon
+ * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
+ ETHARP_TRUST_IP_MAC, review SO_REUSE)
+
+ 2007-03-04 Frédéric Bernon
+ * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
+ referenced.
+
+ 2007-03-04 Frédéric Bernon
+ * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
+ Dmitry Potapov).
+ The api_msg struct stay on the stack (not moved to netconn struct).
+
+ 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
+ * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
+ SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
+ Also fixed cast warning in pbuf_alloc()
+
+ 2007-03-04 Simon Goldschmidt
+ * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
+ existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
+
+ 2007-03-03 Frédéric Bernon
+ * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
+ It is static, and never used in udp.c except udp_init().
+
+ 2007-03-02 Simon Goldschmidt
+ * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
+ tcpip_thread() to tcpip_init(). This way, raw API connections can be
+ initialized before tcpip_thread is running (e.g. before OS is started)
+
+ 2007-03-02 Frédéric Bernon
+ * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
+ interval.
+
+ 2007-02-28 Kieran Mansley
+ * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
+ outside the region of the pbuf by pbuf_header()
+
+ 2007-02-28 Kieran Mansley
+ * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
+ when supplied timeout is also non-zero
+
+(STABLE-1.2.0)
+
+ 2006-12-05 Leon Woestenberg
+ * CHANGELOG: Mention STABLE-1.2.0 release.
+
+ ++ New features:
+
+ 2006-12-01 Christiaan Simons
+ * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
+ Note this is a workaround. Currently I have no other options left.
+
+ 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
+ * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
+ to include/lwip/opt.h.
+ * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
+ Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
+ * opt.h: Add above new options.
+
+ 2006-08-18 Christiaan Simons
+ * tcp_{in,out}.c: added SNMP counters.
+ * ipv4/ip.c: added SNMP counters.
+ * ipv4/ip_frag.c: added SNMP counters.
+
+ 2006-08-08 Christiaan Simons
+ * etharp.{c,h}: added etharp_find_addr() to read
+ (stable) ethernet/IP address pair from ARP table
+
+ 2006-07-14 Christiaan Simons
+ * mib_structs.c: added
+ * include/lwip/snmp_structs.h: added
+ * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
+
+ 2006-07-06 Christiaan Simons
+ * snmp/asn1_{enc,dec}.c added
+ * snmp/mib2.c added
+ * snmp/msg_{in,out}.c added
+ * include/lwip/snmp_asn1.h added
+ * include/lwip/snmp_msg.h added
+ * doc/snmp_agent.txt added
+
+ 2006-03-29 Christiaan Simons
+ * inet.c, inet.h: Added platform byteswap support.
+ Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
+ optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
+
+ ++ Bug fixes:
+
+ 2006-11-30 Christiaan Simons
+ * dhcp.c: Fixed false triggers of request_timeout.
+
+ 2006-11-28 Christiaan Simons
+ * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
+
+ 2006-10-11 Christiaan Simons
+ * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
+ Partially accepted patch #5449 for ANSI C compatibility / build fixes.
+ * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
+ identifier from 170 to 136 (bug #17574).
+
+ 2006-10-10 Christiaan Simons
+ * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
+
+ 2006-08-17 Christiaan Simons
+ * udp.c: Fixed bug #17200, added check for broadcast
+ destinations for PCBs bound to a unicast address.
+
+ 2006-08-07 Christiaan Simons
+ * api_msg.c: Flushing TCP output in do_close() (bug #15926).
+
+ 2006-06-27 Christiaan Simons
+ * api_msg.c: Applied patch for cold case (bug #11135).
+ In accept_function() ensure newconn->callback is always initialized.
+
+ 2006-06-15 Christiaan Simons
+ * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
+ facilitate printing of mem_size_t and u16_t statistics.
+
+ 2006-06-14 Christiaan Simons
+ * api_msg.c: Applied patch #5146 to handle allocation failures
+ in accept() by Kevin Lawson.
+
+ 2006-05-26 Christiaan Simons
+ * api_lib.c: Removed conn->sem creation and destruction
+ from netconn_write() and added sys_sem_new to netconn_new_*.
+
+(STABLE-1_1_1)
+
+ 2006-03-03 Christiaan Simons
+ * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
+ access and added pbuf_alloc() return value checks.
+
+ 2006-01-01 Leon Woestenberg
+ * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
+ now handled by the checksum routine properly.
+
+ 2006-02-27 Leon Woestenberg
+ * pbuf.c: Fix alignment; pbuf_init() would not work unless
+ pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
+
+ 2005-12-20 Leon Woestenberg
+ * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
+ submitted by Mitrani Hiroshi.
+
+ 2005-12-15 Christiaan Simons
+ * inet.c: Disabled the added summing routine to preserve code space.
+
+ 2005-12-14 Leon Woestenberg
+ * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
+ Added Curt McDowell's optimized checksumming routine for future
+ inclusion. Need to create test case for unaliged, aligned, odd,
+ even length combination of cases on various endianess machines.
+
+ 2005-12-09 Christiaan Simons
+ * inet.c: Rewrote standard checksum routine in proper portable C.
+
+ 2005-11-25 Christiaan Simons
+ * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
+ * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
+ u32_t, s32_t typedefs. This solves most debug word-length assumes.
+
+ 2005-07-17 Leon Woestenberg
+ * inet.c: Fixed unaligned 16-bit access in the standard checksum
+ routine by Peter Jolasson.
+ * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
+
+ 2005-02-04 Leon Woestenberg
+ * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
+ * tcp_{out|in}.c: Applied patch fixing unaligned access.
+
+ 2005-01-04 Leon Woestenberg
+ * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
+
+ 2005-01-03 Leon Woestenberg
+ * udp.c: UDP pcb->recv() was called even when it was NULL.
+
+(STABLE-1_1_0)
+
+ 2004-12-28 Leon Woestenberg
+ * etharp.*: Disabled multiple packets on the ARP queue.
+ This clashes with TCP queueing.
+
+ 2004-11-28 Leon Woestenberg
+ * etharp.*: Fixed race condition from ARP request to ARP timeout.
+ Halved the ARP period, doubled the period counts.
+ ETHARP_MAX_PENDING now should be at least 2. This prevents
+ the counter from reaching 0 right away (which would allow
+ too little time for ARP responses to be received).
+
+ 2004-11-25 Leon Woestenberg
+ * dhcp.c: Decline messages were not multicast but unicast.
+ * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
+ Do not try hard to insert arbitrary packet's source address,
+ etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
+ etharp_query() now always DOES call ETHARP_TRY_HARD so that users
+ querying an address will see it appear in the cache (DHCP could
+ suffer from this when a server invalidly gave an in-use address.)
+ * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
+ comparing network addresses (identifiers), not the network masks
+ themselves.
+ * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
+ IP address actually belongs to the network of the given interface.
+
+ 2004-11-24 Kieran Mansley
+ * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
+
+(STABLE-1_1_0-RC1)
+
+ 2004-10-16 Kieran Mansley
+ * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
+ even if one is already pending, if the rcv_wnd is above a threshold
+ (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
+ delayed ACK in order to open the window if the stack is only receiving data.
+
+ 2004-09-12 Kieran Mansley
+ * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
+
+ 2004-08-20 Tony Mountifield
+ * etharp.c: Make sure the first pbuf queued on an ARP entry
+ is properly ref counted.
+
+ 2004-07-27 Tony Mountifield
+ * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
+ warnings about comparison.
+ * pbuf.c: Stopped compiler complaining of empty if statement
+ when LWIP_DEBUGF() empty. Closed an unclosed comment.
+ * tcp.c: Stopped compiler complaining of empty if statement
+ when LWIP_DEBUGF() empty.
+ * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
+ * inet.c: Added a couple of casts to quiet the compiler.
+ No need to test isascii(c) before isdigit(c) or isxdigit(c).
+
+ 2004-07-22 Tony Mountifield
+ * inet.c: Made data types consistent in inet_ntoa().
+ Added casts for return values of checksum routines, to pacify compiler.
+ * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
+ Small corrections to some debugging statements, to pacify compiler.
+
+ 2004-07-21 Tony Mountifield
+ * etharp.c: Removed spurious semicolon and added missing end-of-comment.
+ * ethernetif.c Updated low_level_output() to match prototype for
+ netif->linkoutput and changed low_level_input() similarly for consistency.
+ * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
+ of raw_recv() in raw.h and so avoid compiler error.
+ * sockets.c: Added trivial (int) cast to keep compiler happier.
+ * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
+
+(STABLE-1_0_0)
+
+ ++ Changes:
+
+ 2004-07-05 Leon Woestenberg
+ * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
+ your cc.h file defines this either 1 or 0. If non-defined,
+ defaults to 1.
+ * .c: Added and includes where used.
+ * etharp.c: Made some array indices unsigned.
+
+ 2004-06-27 Leon Woestenberg
+ * netif.*: Added netif_set_up()/down().
+ * dhcp.c: Changes to restart program flow.
+
+ 2004-05-07 Leon Woestenberg
+ * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
+ single-pass lookup for different candidates. Should exploit locality.
+
+ 2004-04-29 Leon Woestenberg
+ * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
+ * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
+ * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
+ the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
+
+ ++ Bug fixes:
+
+ 2004-04-27 Leon Woestenberg
+ * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
+ suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
+ non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
+ is to prefix the 14-bit Ethernet headers with two padding bytes.
+
+ 2004-04-23 Leon Woestenberg
+ * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
+ * etharp.c: Fixed the case where the packet that initiates the ARP request
+ is not queued, and gets lost. Fixed the case where the packets destination
+ address is already known; we now always queue the packet and perform an ARP
+ request.
+
+(STABLE-0_7_0)
+
+ ++ Bug fixes:
+
+ * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
+ * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
+ * Fixed two possible NULL references in rare cases.
+
+(STABLE-0_6_6)
+
+ ++ Bug fixes:
+
+ * Fixed DHCP which did not include the IP address in DECLINE messages.
+
+ ++ Changes:
+
+ * etharp.c has been hauled over a bit.
+
+(STABLE-0_6_5)
+
+ ++ Bug fixes:
+
+ * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
+ * Packets sent from ARP queue had invalid source hardware address.
+
+ ++ Changes:
+
+ * Pass-by ARP requests do now update the cache.
+
+ ++ New features:
+
+ * No longer dependent on ctype.h.
+ * New socket options.
+ * Raw IP pcb support.
+
+(STABLE-0_6_4)
+
+ ++ Bug fixes:
+
+ * Some debug formatters and casts fixed.
+ * Numereous fixes in PPP.
+
+ ++ Changes:
+
+ * DEBUGF now is LWIP_DEBUGF
+ * pbuf_dechain() has been re-enabled.
+ * Mentioned the changed use of CVS branches in README.
+
+(STABLE-0_6_3)
+
+ ++ Bug fixes:
+
+ * Fixed pool pbuf memory leak in pbuf_alloc().
+ Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
+ Reported by Savin Zlobec.
+
+ * PBUF_POOL chains had their tot_len field not set for non-first
+ pbufs. Fixed in pbuf_alloc().
+
+ ++ New features:
+
+ * Added PPP stack contributed by Marc Boucher
+
+ ++ Changes:
+
+ * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
+
+ * ARP queueuing now queues the latest packet instead of the first.
+ This is the RFC recommended behaviour, but can be overridden in
+ lwipopts.h.
+
+(0.6.2)
+
+ ++ Bugfixes:
+
+ * TCP has been fixed to deal with the new use of the pbuf->ref
+ counter.
+
+ * DHCP dhcp_inform() crash bug fixed.
+
+ ++ Changes:
+
+ * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
+ pbuf_refresh(). This has sped up pbuf pool operations considerably.
+ Implemented by David Haas.
+
+(0.6.1)
+
+ ++ New features:
+
+ * The packet buffer implementation has been enhanced to support
+ zero-copy and copy-on-demand for packet buffers which have their
+ payloads in application-managed memory.
+ Implemented by David Haas.
+
+ Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
+ if an outgoing packet can be directly sent on the link, or perform
+ a copy-on-demand when necessary.
+
+ The application can safely assume the packet is sent, and the RAM
+ is available to the application directly after calling udp_send()
+ or similar function.
+
+ ++ Bugfixes:
+
+ * ARP_QUEUEING should now correctly work for all cases, including
+ PBUF_REF.
+ Implemented by Leon Woestenberg.
+
+ ++ Changes:
+
+ * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
+ to a '0.0.0.0' IP address.
+
+ * The packet buffer implementation is changed. The pbuf->ref counter
+ meaning has changed, and several pbuf functions have been
+ adapted accordingly.
+
+ * netif drivers have to be changed to set the hardware address length field
+ that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
+ See the contrib/ports/c16x cs8900 driver as a driver example.
+
+ * netif's have a dhcp field that must be initialized to NULL by the driver.
+ See the contrib/ports/c16x cs8900 driver as a driver example.
+
+(0.5.x) This file has been unmaintained up to 0.6.1. All changes are
+ logged in CVS but have not been explained here.
+
+(0.5.3) Changes since version 0.5.2
+
+ ++ Bugfixes:
+
+ * memp_malloc(MEMP_API_MSG) could fail with multiple application
+ threads because it wasn't protected by semaphores.
+
+ ++ Other changes:
+
+ * struct ip_addr now packed.
+
+ * The name of the time variable in arp.c has been changed to ctime
+ to avoid conflicts with the time() function.
+
+(0.5.2) Changes since version 0.5.1
+
+ ++ New features:
+
+ * A new TCP function, tcp_tmr(), now handles both TCP timers.
+
+ ++ Bugfixes:
+
+ * A bug in tcp_parseopt() could cause the stack to hang because of a
+ malformed TCP option.
+
+ * The address of new connections in the accept() function in the BSD
+ socket library was not handled correctly.
+
+ * pbuf_dechain() did not update the ->tot_len field of the tail.
+
+ * Aborted TCP connections were not handled correctly in all
+ situations.
+
+ ++ Other changes:
+
+ * All protocol header structs are now packed.
+
+ * The ->len field in the tcp_seg structure now counts the actual
+ amount of data, and does not add one for SYN and FIN segments.
+
+(0.5.1) Changes since version 0.5.0
+
+ ++ New features:
+
+ * Possible to run as a user process under Linux.
+
+ * Preliminary support for cross platform packed structs.
+
+ * ARP timer now implemented.
+
+ ++ Bugfixes:
+
+ * TCP output queue length was badly initialized when opening
+ connections.
+
+ * TCP delayed ACKs were not sent correctly.
+
+ * Explicit initialization of BSS segment variables.
+
+ * read() in BSD socket library could drop data.
+
+ * Problems with memory alignment.
+
+ * Situations when all TCP buffers were used could lead to
+ starvation.
+
+ * TCP MSS option wasn't parsed correctly.
+
+ * Problems with UDP checksum calculation.
+
+ * IP multicast address tests had endianess problems.
+
+ * ARP requests had wrong destination hardware address.
+
+ ++ Other changes:
+
+ * struct eth_addr changed from u16_t[3] array to u8_t[6].
+
+ * A ->linkoutput() member was added to struct netif.
+
+ * TCP and UDP ->dest_* struct members where changed to ->remote_*.
+
+ * ntoh* macros are now null definitions for big endian CPUs.
+
+(0.5.0) Changes since version 0.4.2
+
+ ++ New features:
+
+ * Redesigned operating system emulation layer to make porting easier.
+
+ * Better control over TCP output buffers.
+
+ * Documenation added.
+
+ ++ Bugfixes:
+
+ * Locking issues in buffer management.
+
+ * Bugfixes in the sequential API.
+
+ * IP forwarding could cause memory leakage. This has been fixed.
+
+ ++ Other changes:
+
+ * Directory structure somewhat changed; the core/ tree has been
+ collapsed.
+
+(0.4.2) Changes since version 0.4.1
+
+ ++ New features:
+
+ * Experimental ARP implementation added.
+
+ * Skeleton Ethernet driver added.
+
+ * Experimental BSD socket API library added.
+
+ ++ Bugfixes:
+
+ * In very intense situations, memory leakage could occur. This has
+ been fixed.
+
+ ++ Other changes:
+
+ * Variables named "data" and "code" have been renamed in order to
+ avoid name conflicts in certain compilers.
+
+ * Variable++ have in appliciable cases been translated to ++variable
+ since some compilers generate better code in the latter case.
+
+(0.4.1) Changes since version 0.4
+
+ ++ New features:
+
+ * TCP: Connection attempts time out earlier than data
+ transmissions. Nagle algorithm implemented. Push flag set on the
+ last segment in a burst.
+
+ * UDP: experimental support for UDP-Lite extensions.
+
+ ++ Bugfixes:
+
+ * TCP: out of order segments were in some cases handled incorrectly,
+ and this has now been fixed. Delayed acknowledgements was broken
+ in 0.4, has now been fixed. Binding to an address that is in use
+ now results in an error. Reset connections sometimes hung an
+ application; this has been fixed.
+
+ * Checksum calculation sometimes failed for chained pbufs with odd
+ lengths. This has been fixed.
+
+ * API: a lot of bug fixes in the API. The UDP API has been improved
+ and tested. Error reporting and handling has been
+ improved. Logical flaws and race conditions for incoming TCP
+ connections has been found and removed.
+
+ * Memory manager: alignment issues. Reallocating memory sometimes
+ failed, this has been fixed.
+
+ * Generic library: bcopy was flawed and has been fixed.
+
+ ++ Other changes:
+
+ * API: all datatypes has been changed from generic ones such as
+ ints, to specified ones such as u16_t. Functions that return
+ errors now have the correct type (err_t).
+
+ * General: A lot of code cleaned up and debugging code removed. Many
+ portability issues have been fixed.
+
+ * The license was changed; the advertising clause was removed.
+
+ * C64 port added.
+
+ * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
+ Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
+ fixing bugs!
+
+(0.4) Changes since version 0.3.1
+
+ * Memory management has been radically changed; instead of
+ allocating memory from a shared heap, memory for objects that are
+ rapidly allocated and deallocated is now kept in pools. Allocation
+ and deallocation from those memory pools is very fast. The shared
+ heap is still present but is used less frequently.
+
+ * The memory, memory pool, and packet buffer subsystems now support
+ 4-, 2-, or 1-byte alignment.
+
+ * "Out of memory" situations are handled in a more robust way.
+
+ * Stack usage has been reduced.
+
+ * Easier configuration of lwIP parameters such as memory usage,
+ TTLs, statistics gathering, etc. All configuration parameters are
+ now kept in a single header file "lwipopts.h".
+
+ * The directory structure has been changed slightly so that all
+ architecture specific files are kept under the src/arch
+ hierarchy.
+
+ * Error propagation has been improved, both in the protocol modules
+ and in the API.
+
+ * The code for the RTXC architecture has been implemented, tested
+ and put to use.
+
+ * Bugs have been found and corrected in the TCP, UDP, IP, API, and
+ the Internet checksum modules.
+
+ * Bugs related to porting between a 32-bit and a 16-bit architecture
+ have been found and corrected.
+
+ * The license has been changed slightly to conform more with the
+ original BSD license, including the advertisement clause.
+
+(0.3.1) Changes since version 0.3
+
+ * Fix of a fatal bug in the buffer management. Pbufs with allocated
+ RAM never returned the RAM when the pbuf was deallocated.
+
+ * TCP congestion control, window updates and retransmissions did not
+ work correctly. This has now been fixed.
+
+ * Bugfixes in the API.
+
+(0.3) Changes since version 0.2
+
+ * New and improved directory structure. All include files are now
+ kept in a dedicated include/ directory.
+
+ * The API now has proper error handling. A new function,
+ netconn_err(), now returns an error code for the connection in
+ case of errors.
+
+ * Improvements in the memory management subsystem. The system now
+ keeps a pointer to the lowest free memory block. A new function,
+ mem_malloc2() tries to allocate memory once, and if it fails tries
+ to free some memory and retry the allocation.
+
+ * Much testing has been done with limited memory
+ configurations. lwIP now does a better job when overloaded.
+
+ * Some bugfixes and improvements to the buffer (pbuf) subsystem.
+
+ * Many bugfixes in the TCP code:
+
+ - Fixed a bug in tcp_close().
+
+ - The TCP receive window was incorrectly closed when out of
+ sequence segments was received. This has been fixed.
+
+ - Connections are now timed-out of the FIN-WAIT-2 state.
+
+ - The initial congestion window could in some cases be too
+ large. This has been fixed.
+
+ - The retransmission queue could in some cases be screwed up. This
+ has been fixed.
+
+ - TCP RST flag now handled correctly.
+
+ - Out of sequence data was in some cases never delivered to the
+ application. This has been fixed.
+
+ - Retransmitted segments now contain the correct acknowledgment
+ number and advertised window.
+
+ - TCP retransmission timeout backoffs are not correctly computed
+ (ala BSD). After a number of retransmissions, TCP now gives up
+ the connection.
+
+ * TCP connections now are kept on three lists, one for active
+ connections, one for listening connections, and one for
+ connections that are in TIME-WAIT. This greatly speeds up the fast
+ timeout processing for sending delayed ACKs.
+
+ * TCP now provides proper feedback to the application when a
+ connection has been successfully set up.
+
+ * More comments have been added to the code. The code has also been
+ somewhat cleaned up.
+
+(0.2) Initial public release.
diff --git a/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/lwip-2.2.0/CMakeLists.txt b/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/lwip-2.2.0/CMakeLists.txt
new file mode 100644
index 00000000..55fc44a1
--- /dev/null
+++ b/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/lwip-2.2.0/CMakeLists.txt
@@ -0,0 +1,35 @@
+cmake_minimum_required(VERSION 3.10)
+
+set (CMAKE_CONFIGURATION_TYPES "Debug;Release")
+
+project(lwIP)
+
+# Example lwIP application
+set(LWIP_DIR ${CMAKE_CURRENT_SOURCE_DIR})
+
+set (LWIP_DEFINITIONS LWIP_DEBUG=1)
+
+if (${CMAKE_SYSTEM_NAME} STREQUAL "Windows")
+ add_subdirectory(${LWIP_DIR}/contrib/ports/win32/example_app)
+elseif(${CMAKE_SYSTEM_NAME} STREQUAL "Linux" OR ${CMAKE_SYSTEM_NAME} STREQUAL "Darwin")
+ add_subdirectory(${LWIP_DIR}/contrib/ports/unix/example_app)
+else()
+ message(WARNING "Host ${CMAKE_SYSTEM_NAME} is not supported to build example_app")
+endif()
+
+# Source package generation
+set(CPACK_SOURCE_GENERATOR "ZIP")
+set(CPACK_SOURCE_PACKAGE_DESCRIPTION_SUMMARY "lwIP lightweight IP stack")
+set(CPACK_PACKAGE_VERSION_MAJOR "${LWIP_VERSION_MAJOR}")
+set(CPACK_PACKAGE_VERSION_MINOR "${LWIP_VERSION_MINOR}")
+set(CPACK_PACKAGE_VERSION_PATCH "${LWIP_VERSION_REVISION}")
+set(CPACK_SOURCE_IGNORE_FILES "/build/;${CPACK_SOURCE_IGNORE_FILES};.git")
+set(CPACK_SOURCE_PACKAGE_FILE_NAME "lwip-${LWIP_VERSION_MAJOR}.${LWIP_VERSION_MINOR}.${LWIP_VERSION_REVISION}")
+include(CPack)
+
+# Generate docs before creating source package
+include(src/Filelists.cmake)
+add_custom_target(dist COMMAND ${CMAKE_MAKE_PROGRAM} package_source)
+if (TARGET lwipdocs)
+ add_dependencies(dist lwipdocs)
+endif()
diff --git a/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/lwip-2.2.0/COPYING b/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/lwip-2.2.0/COPYING
new file mode 100644
index 00000000..0303635c
--- /dev/null
+++ b/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/lwip-2.2.0/COPYING
@@ -0,0 +1,24 @@
+Copyright (c) 2001, 2002 Swedish Institute of Computer Science.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice,
+ this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+3. The name of the author may not be used to endorse or promote products
+ derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.
diff --git a/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/lwip-2.2.0/FEATURES b/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/lwip-2.2.0/FEATURES
new file mode 100644
index 00000000..87802d13
--- /dev/null
+++ b/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/lwip-2.2.0/FEATURES
@@ -0,0 +1,11 @@
+lwIP is a small independent implementation of the TCP/IP protocol suite targeted at embedded systems.
+
+The focus of the lwIP TCP/IP implementation is to reduce resource usage while still having a full scale TCP. This makes lwIP suitable for use in embedded systems with tens of kilobytes of free RAM and room for around 40 kilobytes of code ROM.
+
+Main features include:
+- Protocols: IP, IPv6, ICMP, ND, MLD, UDP, TCP, IGMP, ARP, PPPoS, PPPoE, 6LowPAN (via IEEE 802.15.4, BLE or ZEP; since v2.1.0)
+- DHCP client, stateless DHCPv6 (since v2.1.0), DNS client (incl. mDNS hostname resolver), AutoIP/APIPA (Zeroconf), ACD (Address Conflict Detection), SNMP agent (v1, v2c, v3 (since v2.1.0), private MIB support & MIB compiler)
+- APIs: specialized APIs for enhanced performance & zero copy, optional Berkeley-alike socket API
+- Extended features: IP forwarding over multiple network interfaces
+- Extended TCP features: congestion control, RTT estimation and fast recovery/fast retransmit, sending SACKs (since v2.1.0), "altcp": nearly transparent TLS for any tcp pcb (since v2.1.0)
+- Addon applications: HTTP server (HTTPS via altcp), HTTP(S) client (since v2.1.0), SNTP client, SMTP client (SMTPS via altcp), ping, NetBIOS nameserver, mDNS responder, MQTT client (TLS support since v2.1.0), TFTP server, iPerf2 counterpart
diff --git a/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/lwip-2.2.0/FILES b/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/lwip-2.2.0/FILES
new file mode 100644
index 00000000..2a7086c1
--- /dev/null
+++ b/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/lwip-2.2.0/FILES
@@ -0,0 +1,6 @@
+contrib/ - lwIP examples, ports, and small apps (formerly http://git.savannah.gnu.org/cgit/lwip/lwip-contrib.git/)
+src/ - The source code for the lwIP TCP/IP stack.
+doc/ - The documentation for lwIP.
+test/ - Some code to test whether the sources do what they should.
+
+See also the FILES file in each subdirectory.
diff --git a/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/lwip-2.2.0/README b/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/lwip-2.2.0/README
new file mode 100644
index 00000000..f831051b
--- /dev/null
+++ b/projects/dj_47dr/dj_47dr_demo/vitis_classic/dj_47dr_platform/psu_cortexa53_0/standalone_psu_cortexa53_0/bsp/psu_cortexa53_0/libsrc/lwip220_v1_0/src/lwip-2.2.0/README
@@ -0,0 +1,109 @@
+INTRODUCTION
+
+lwIP is a small independent implementation of the TCP/IP protocol suite.
+
+The focus of the lwIP TCP/IP implementation is to reduce the RAM usage
+while still having a full scale TCP. This making lwIP suitable for use
+in embedded systems with tens of kilobytes of free RAM and room for
+around 40 kilobytes of code ROM.
+
+lwIP was originally developed by Adam Dunkels at the Computer and Networks
+Architectures (CNA) lab at the Swedish Institute of Computer Science (SICS)
+and is now developed and maintained by a worldwide network of developers.
+
+FEATURES
+
+ * IP (Internet Protocol, IPv4 and IPv6) including packet forwarding over
+ multiple network interfaces
+ * ICMP (Internet Control Message Protocol) for network maintenance and debugging
+ * IGMP (Internet Group Management Protocol) for multicast traffic management
+ * MLD (Multicast listener discovery for IPv6). Aims to be compliant with
+ RFC 2710. No support for MLDv2
+ * ND (Neighbor discovery and stateless address autoconfiguration for IPv6).
+ Aims to be compliant with RFC 4861 (Neighbor discovery) and RFC 4862
+ (Address autoconfiguration)
+ * DHCP, AutoIP/APIPA (Zeroconf), ACD (Address Conflict Detection)
+ and (stateless) DHCPv6
+ * UDP (User Datagram Protocol) including experimental UDP-lite extensions
+ * TCP (Transmission Control Protocol) with congestion control, RTT estimation
+ fast recovery/fast retransmit and sending SACKs
+ * raw/native API for enhanced performance
+ * Optional Berkeley-like socket API
+ * TLS: optional layered TCP ("altcp") for nearly transparent TLS for any
+ TCP-based protocol (ported to mbedTLS) (see changelog for more info)
+ * PPPoS and PPPoE (Point-to-point protocol over Serial/Ethernet)
+ * DNS (Domain name resolver incl. mDNS)
+ * 6LoWPAN (via IEEE 802.15.4, BLE or ZEP)
+
+
+APPLICATIONS
+
+ * HTTP server with SSI and CGI (HTTPS via altcp)
+ * SNMPv2c agent with MIB compiler (Simple Network Management Protocol), v3 via altcp
+ * SNTP (Simple network time protocol)
+ * NetBIOS name service responder
+ * MDNS (Multicast DNS) responder
+ * iPerf server implementation
+ * MQTT client (TLS support via altcp)
+
+
+LICENSE
+
+lwIP is freely available under a BSD license.
+
+
+DEVELOPMENT
+
+lwIP has grown into an excellent TCP/IP stack for embedded devices,
+and developers using the stack often submit bug fixes, improvements,
+and additions to the stack to further increase its usefulness.
+
+Development of lwIP is hosted on Savannah, a central point for
+software development, maintenance and distribution. Everyone can
+help improve lwIP by use of Savannah's interface, Git and the
+mailing list. A core team of developers will commit changes to the
+Git source tree.
+
+The lwIP TCP/IP stack is maintained in the 'src' directory and
+contributions (such as platform ports and applications) are in
+the 'contrib' directory.
+
+See doc/savannah.txt for details on Git server access for users and
+developers.
+
+The current Git tree is web-browsable:
+ https://git.savannah.gnu.org/cgit/lwip.git
+
+Submit patches and bugs via the lwIP project page:
+ https://savannah.nongnu.org/projects/lwip/
+
+Continuous integration builds (GCC, clang):
+ https://github.com/lwip-tcpip/lwip/actions
+
+
+DOCUMENTATION
+
+Self documentation of the source code is regularly extracted from the current
+Git sources and is available from this web page:
+ https://www.nongnu.org/lwip/
+
+Also, there are mailing lists you can subscribe at
+ https://savannah.nongnu.org/mail/?group=lwip
+plus searchable archives:
+ https://lists.nongnu.org/archive/html/lwip-users/
+ https://lists.nongnu.org/archive/html/lwip-devel/
+
+There is a wiki about lwIP at
+ https://lwip.wikia.com/wiki/LwIP_Wiki
+You might get questions answered there, but unfortunately, it is not as
+well maintained as it should be.
+
+lwIP was originally written by Adam Dunkels:
+ http://dunkels.com/adam/
+
+Reading Adam's papers, the files in docs/, browsing the source code
+documentation and browsing the mailing list archives is a good way to
+become familiar with the design of lwIP.
+
+Adam Dunkels
+Leon Woestenberg