WIP: LInux Networking support via USB

apps/linux_mgr/CMakeLists.txt

@@ -0,0 +1,28 @@
+cmake_minimum_required(VERSION 3.15)
+
+# Get SDK path
+if(NOT SDK_PATH)
+    get_filename_component(SDK_PATH ../../ ABSOLUTE)
+    if(EXISTS $ENV{OBLFR_SDK_PATH})
+        set(SDK_PATH $ENV{OBLFR_SDK_PATH})
+    endif()
+endif()
+
+# Check SDK Path
+if(NOT EXISTS ${SDK_PATH})
+    message(FATAL_ERROR "SDK path Error, Please set OBLFR_SDK_PATH variable")
+endif()
+
+include(${SDK_PATH}/cmake/bflbsdk.cmake)
+
+target_compile_options(app PRIVATE -ggdb -O3)
+sdk_add_include_directories(include)
+target_sources(app PRIVATE 
+    ${CMAKE_CURRENT_SOURCE_DIR}/src/config.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/src/network/usbd_rndis_handler.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/src/network/usbd_rndis.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/src/network/rpmsg-net.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/src/network/network.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/src/shell_cmds.c)
+sdk_set_main_file(src/main.c)
+project(linux_mgr)

apps/linux_mgr/Makefile

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+OBLFR_SDK_PATH := $(realpath $(dir $(realpath $(lastword $(MAKEFILE_LIST))))../../)
+
+-include sdkconfig
+
+CPU_ID = m0
+
+include $(OBLFR_SDK_PATH)/cmake/project.build
+
+flash:
+	bflb-mcu-tool --port /dev/ttyUSB1 --baudrate 2000000 --chipname=bl808 --firmware build/build_out/linux_mgr_bl808_m0.bin
+
+monitor:
+	screen /dev/ttyUSB1 2000000

apps/linux_mgr/include/config.h

@@ -0,0 +1,49 @@
+#ifndef _CONFIG_H_
+#define _CONFIG_H_
+/**
+ * @file config.h
+ * @brief Confifguration for the Linux Manager
+ *
+ * Copyright (c) 2023 Justin Hammond
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+#include <lwip/inet.h>
+#include "oblfr_common.h"
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct {
+    uint32_t flags;
+    ip_addr_t ipaddr;
+    ip_addr_t netmask;
+    ip_addr_t gw;
+    ip_addr_t dns[2];
+    char hostname[16];
+} net_config_t;
+
+oblfr_err_t config_init();
+oblfr_err_t config_save();
+net_config_t *config_get();
+
+#ifdef __cplusplus
+}
+#endif
+#endif

apps/linux_mgr/include/lwipopts.h

@@ -0,0 +1,271 @@
+/**
+ * Copyright (c) 2022 Bouffalolab team
+ * Copyright (c) 2001-2004 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.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Adam Dunkels <[email protected]>
+ ******************************************************************************
+ */
+
+#ifndef __LWIPOPTS_H__
+#define __LWIPOPTS_H__
+
+/**
+ * NO_SYS==1: Provides VERY minimal functionality. Otherwise,
+ * use lwIP facilities.
+ */
+#define NO_SYS 0
+
+/* ---------- Memory options ---------- */
+/* MEM_ALIGNMENT: should be set to the alignment of the CPU for which
+   lwIP is compiled. 4 byte alignment -> define MEM_ALIGNMENT to 4, 2
+   byte alignment -> define MEM_ALIGNMENT to 2. */
+#define MEM_ALIGNMENT 4
+
+/* MEM_SIZE: the size of the heap memory. If the application will send
+a lot of data that needs to be copied, this should be set high. */
+#define MEM_SIZE (10 * 1024)
+
+/* MEMP_NUM_PBUF: the number of memp struct pbufs. If the application
+   sends a lot of data out of ROM (or other static memory), this
+   should be set high. */
+#define MEMP_NUM_PBUF 10
+/* MEMP_NUM_UDP_PCB: the number of UDP protocol control blocks. One
+   per active UDP "connection". */
+#define MEMP_NUM_UDP_PCB 6
+/* MEMP_NUM_TCP_PCB: the number of simulatenously active TCP
+   connections. */
+#define MEMP_NUM_TCP_PCB 10
+/* MEMP_NUM_TCP_PCB_LISTEN: the number of listening TCP
+   connections. */
+#define MEMP_NUM_TCP_PCB_LISTEN 5
+/* MEMP_NUM_SYS_TIMEOUT: the number of simulateously active
+   timeouts. */
+#define MEMP_NUM_SYS_TIMEOUT 10
+
+/* ---------- IPv4 options ---------- */
+#define LWIP_IPV4 1
+#define LWIP_IPV6 0
+/* ---------- TCP options ---------- */
+#define LWIP_TCP 1
+#define TCP_TTL  255
+
+/* Controls if TCP should queue segments that arrive out of
+   order. Define to 0 if your device is low on memory. */
+#define TCP_QUEUE_OOSEQ 0
+
+/* TCP Maximum segment size. */
+#define TCP_MSS (1500 - 40) /* TCP_MSS = (Ethernet MTU - IP header size - TCP header size) */
+
+/* TCP sender buffer space (bytes). */
+#define TCP_SND_BUF (4 * TCP_MSS)
+
+/*  TCP_SND_QUEUELEN: TCP sender buffer space (pbufs). This must be at least
+  as much as (2 * TCP_SND_BUF/TCP_MSS) for things to work. */
+
+#define TCP_SND_QUEUELEN (2 * TCP_SND_BUF / TCP_MSS)
+
+/* MEMP_NUM_TCP_SEG: the number of simultaneously queued TCP
+   segments. */
+#define MEMP_NUM_TCP_SEG TCP_SND_QUEUELEN
+
+/* TCP receive window. */
+#define TCP_WND (2 * TCP_MSS)
+
+/* ---------- Pbuf options ---------- */
+/* PBUF_POOL_SIZE: the number of buffers in the pbuf pool.
+   @ note: used to allocate Tx pbufs only
+   mix pbuf size is (TCP_WND / TCP_MSS)  */
+#define PBUF_POOL_SIZE (TCP_WND / TCP_MSS) * 2
+
+/* PBUF_POOL_BUFSIZE: the size of each pbuf in the pbuf pool. */
+#define PBUF_POOL_BUFSIZE 1600
+
+/* LWIP_SUPPORT_CUSTOM_PBUF == 1: to pass directly MAC Rx buffers to the stack
+   no copy is needed */
+#define LWIP_SUPPORT_CUSTOM_PBUF 1
+
+/* ---------- ICMP options ---------- */
+#define LWIP_ICMP 1
+
+/* ---------- DHCP options ---------- */
+#define LWIP_DHCP 0
+
+/* ---------- UDP options ---------- */
+#define LWIP_UDP 1
+#define UDP_TTL  255
+
+#define LWIP_DNS 1
+#define LWIP_RAND() ((u32_t)rand())
+
+#define LWIP_RAW 1
+#define LWIP_SO_RCVTIMEO 1
+
+/* ---------- Statistics options ---------- */
+#define LWIP_STATS 1
+#define MIB2_STATS 1
+#define LWIP_NUM_NETIF_CLIENT_DATA 1
+#define LWIP_NETIF_STATUS_CALLBACK 1
+#define LWIP_BROADCAST_PING 1
+
+/* ---------- link callback options ---------- */
+/* LWIP_NETIF_LINK_CALLBACK==1: Support a callback function from an interface
+ * whenever the link changes (i.e., link down)
+ */
+#define LWIP_NETIF_LINK_CALLBACK 1
+
+/*
+   --------------------------------------
+   ---------- Checksum options ----------
+   --------------------------------------
+*/
+/* LWIP_CHECKSUM_ON_COPY==1: Calculate checksum when copying data from application buffers to pbufs. */
+#define LWIP_CHECKSUM_ON_COPY 0
+
+#ifdef CHECKSUM_BY_HARDWARE
+/* CHECKSUM_GEN_IP==0: Generate checksums by hardware for outgoing IP packets.*/
+#define CHECKSUM_GEN_IP 0
+/* CHECKSUM_GEN_UDP==0: Generate checksums by hardware for outgoing UDP packets.*/
+#define CHECKSUM_GEN_UDP 0
+/* CHECKSUM_GEN_TCP==0: Generate checksums by hardware for outgoing TCP packets.*/
+#define CHECKSUM_GEN_TCP 0
+/* CHECKSUM_CHECK_IP==0: Check checksums by hardware for incoming IP packets.*/
+#define CHECKSUM_CHECK_IP 0
+/* CHECKSUM_CHECK_UDP==0: Check checksums by hardware for incoming UDP packets.*/
+#define CHECKSUM_CHECK_UDP 0
+/* CHECKSUM_CHECK_TCP==0: Check checksums by hardware for incoming TCP packets.*/
+#define CHECKSUM_CHECK_TCP 0
+/* CHECKSUM_CHECK_ICMP==0: Check checksums by hardware for incoming ICMP packets.*/
+#define CHECKSUM_GEN_ICMP 0
+#else
+/* CHECKSUM_GEN_IP==1: Generate checksums in software for outgoing IP packets.*/
+#define CHECKSUM_GEN_IP     1
+/* CHECKSUM_GEN_UDP==1: Generate checksums in software for outgoing UDP packets.*/
+#define CHECKSUM_GEN_UDP    1
+/* CHECKSUM_GEN_TCP==1: Generate checksums in software for outgoing TCP packets.*/
+#define CHECKSUM_GEN_TCP    1
+/* CHECKSUM_CHECK_IP==1: Check checksums in software for incoming IP packets.*/
+#define CHECKSUM_CHECK_IP   1
+/* CHECKSUM_CHECK_UDP==1: Check checksums in software for incoming UDP packets.*/
+#define CHECKSUM_CHECK_UDP  1
+/* CHECKSUM_CHECK_TCP==1: Check checksums in software for incoming TCP packets.*/
+#define CHECKSUM_CHECK_TCP  1
+/* CHECKSUM_CHECK_ICMP==1: Check checksums by hardware for incoming ICMP packets.*/
+#define CHECKSUM_GEN_ICMP   1
+#define CHECKSUM_CHECK_ICMP 1
+#endif
+
+/*
+   ----------------------------------------------
+   ---------- Sequential layer options ----------
+   ----------------------------------------------
+*/
+/**
+ * LWIP_NETCONN==1: Enable Netconn API (require to use api_lib.c)
+ */
+#define LWIP_NETCONN 1
+
+/*
+   ------------------------------------
+   ---------- Socket options ----------
+   ------------------------------------
+*/
+/**
+ * LWIP_SOCKET==1: Enable Socket API (require to use sockets.c)
+ */
+#define LWIP_SOCKET 1
+
+/* ---------------- httpd options --------------- */
+#define HTTPD_USE_CUSTOM_FSDATA 1
+
+// /** Set this to 1 to support CGI (old style).*/
+// #define LWIP_HTTPD_CGI 1
+
+// /** Set this to 1 to support SSI (Server-Side-Includes)*/
+// #define LWIP_HTTPD_SSI 0
+
+// /** Set this to 1 to support HTTP POST */
+// #define LWIP_HTTPD_SUPPORT_POST 0
+
+// /** Set this to 0 to not send the SSI tag (default is on, so the tag will
+//  * be sent in the HTML page */
+// #define LWIP_HTTPD_SSI_INCLUDE_TAG 0
+
+// /** This is the size of a static buffer used when URIs end with '/'.
+//  * In this buffer, the directory requested is concatenated with all the
+//  * configured default file names.
+//  * Set to 0 to disable checking default filenames on non-root directories.
+//  */
+// #define LWIP_HTTPD_MAX_REQUEST_URI_LEN 256
+
+// /** The server port for HTTPD to use */
+// #define HTTPD_SERVER_PORT LWIP_IANA_PORT_HTTP
+
+/*
+   ----------------------------------------
+   ---------- Lwip Debug options ----------
+   ----------------------------------------
+*/
+
+#define MASTER_DBG LWIP_DBG_OFF
+
+#define LWIP_DEBUG       MASTER_DBG
+#define ETHARP_DEBUG     MASTER_DBG 
+#define ICMP_DEBUG       MASTER_DBG
+#define TCPIP_DEBUG      MASTER_DBG
+#define TCP_DEBUG        MASTER_DBG
+#define TCP_OUTPUT_DEBUG MASTER_DBG
+#define UDP_DEBUG        MASTER_DBG
+#define SOCKET_DEBUG     MASTER_DBG
+#define API_LIB_DEBUG    MASTER_DBG
+#define HTTPD_DEBUG      MASTER_DBG
+#define PBUF_DEBUG       MASTER_DBG
+#define IP_DEBUG         MASTER_DBG
+#define NETIF_DEBUG      MASTER_DBG
+#define BRIDGEIF_FDB_DEBUG MASTER_DBG
+#define BRIDGEIF_FW_DEBUG MASTER_DBG
+#define IP_DEBUG       MASTER_DBG
+#define BRIDGEIF_DEBUG MASTER_DBG
+
+/*
+   ---------------------------------
+   ---------- OS options ----------
+   ---------------------------------
+*/
+
+#define TCPIP_THREAD_NAME         "TCP/IP"
+#define TCPIP_THREAD_STACKSIZE    1024
+#define TCPIP_MBOX_SIZE           50
+#define DEFAULT_UDP_RECVMBOX_SIZE 100
+#define DEFAULT_TCP_RECVMBOX_SIZE 100
+#define DEFAULT_ACCEPTMBOX_SIZE   100
+#define DEFAULT_THREAD_STACKSIZE  1024
+#define TCPIP_THREAD_PRIO         osPriorityHigh
+
+#endif /* __LWIPOPTS_H__ */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/