diff --git a/README.en.md b/README.en.md deleted file mode 100644 index 34ee3408978d670152f50a6087b7a142933e1106..0000000000000000000000000000000000000000 --- a/README.en.md +++ /dev/null @@ -1,36 +0,0 @@ -# communication_sfc_newip - -#### Description -{**When you're done, you can delete the content in this README and update the file with details for others getting started with your repository**} - -#### Software Architecture -Software architecture description - -#### Installation - -1. xxxx -2. xxxx -3. xxxx - -#### Instructions - -1. xxxx -2. xxxx -3. xxxx - -#### Contribution - -1. Fork the repository -2. Create Feat_xxx branch -3. Commit your code -4. Create Pull Request - - -#### Gitee Feature - -1. You can use Readme\_XXX.md to support different languages, such as Readme\_en.md, Readme\_zh.md -2. Gitee blog [blog.gitee.com](https://blog.gitee.com) -3. Explore open source project [https://gitee.com/explore](https://gitee.com/explore) -4. The most valuable open source project [GVP](https://gitee.com/gvp) -5. The manual of Gitee [https://gitee.com/help](https://gitee.com/help) -6. The most popular members [https://gitee.com/gitee-stars/](https://gitee.com/gitee-stars/) diff --git a/README.md b/README.md deleted file mode 100644 index edec071139065095e73dd75f457989a5d53f23d6..0000000000000000000000000000000000000000 --- a/README.md +++ /dev/null @@ -1,39 +0,0 @@ -# communication_sfc_newip - -#### 介绍 -{**以下是 Gitee 平台说明，您可以替换此简介** -Gitee 是 OSCHINA 推出的基于 Git 的代码托管平台（同时支持 SVN）。专为开发者提供稳定、高效、安全的云端软件开发协作平台 -无论是个人、团队、或是企业，都能够用 Gitee 实现代码托管、项目管理、协作开发。企业项目请看 [https://gitee.com/enterprises](https://gitee.com/enterprises)} - -#### 软件架构 -软件架构说明 - - -#### 安装教程 - -1. xxxx -2. xxxx -3. xxxx - -#### 使用说明 - -1. xxxx -2. xxxx -3. xxxx - -#### 参与贡献 - -1. Fork 本仓库 -2. 新建 Feat_xxx 分支 -3. 提交代码 -4. 新建 Pull Request - - -#### 特技 - -1. 使用 Readme\_XXX.md 来支持不同的语言，例如 Readme\_en.md, Readme\_zh.md -2. Gitee 官方博客 [blog.gitee.com](https://blog.gitee.com) -3. 你可以 [https://gitee.com/explore](https://gitee.com/explore) 这个地址来了解 Gitee 上的优秀开源项目 -4. [GVP](https://gitee.com/gvp) 全称是 Gitee 最有价值开源项目，是综合评定出的优秀开源项目 -5. Gitee 官方提供的使用手册 [https://gitee.com/help](https://gitee.com/help) -6. Gitee 封面人物是一档用来展示 Gitee 会员风采的栏目 [https://gitee.com/gitee-stars/](https://gitee.com/gitee-stars/) diff --git a/README_zh.md b/README_zh.md new file mode 100644 index 0000000000000000000000000000000000000000..36e5e7bc8992b94885a101a795404400b988a329 --- /dev/null +++ b/README_zh.md @@ -0,0 +1,270 @@ +# NewIP内核协议栈 + +## 简介 + +NewIP支持可变长多语义地址，可变长定制化报头封装，通过精简报文头开销，提升数据传输效率。 + +``` +备注： +IPv4地址长度固定4字节，IPv6地址长度固定16字节。 +IPv4网络层报头长度20~60字节，IPv6网络层报头长度40字节。 +``` + +NewIP灵活极简报文头如下图所示，通过LLC Header中的EtherType = 0xEADD标识。Bitmap是一组由0和1组成的二进制序列，每个二进制位的数值用于表示特定目标特性的存在性。 + +![image-20220901152326770](figures/image-20220901152326770.png) + +NewIP内核协议栈架构图如下，用户态调用Socket API创建NewIP socket，采用NewIP极简帧头封装进行收发包。 + +![image-20220901152539801](figures/image-20220901152539801.png) + + + +## 目录 + +NewIP内核协议栈主要代码目录结构如下： + +``` +/foundation/communication/sfc/newip +├── patches +│ └── linux-5.10 # NewIP内核侵入式修改对应的补丁文件 +└── code + ├── common # NewIP 通用代码 + └── linux # NewIP Linux内核代码 + ├── include # NewIP 头文件 + │ ├── linux + │ ├── net + │ └── uapi + └── net + └── newip # NewIP 功能代码 +``` + +## 编译构建 + +NewIP内核协议栈使能，需要在对应款型的内核defconfig文件中设置CONFIG_NEWIP=y，删除out/kernel目录后重新编译。 + +kernel\linux\config\linux-5.10\arch\arm64\configs\rk3568_standard_defconfig + +```c +CONFIG_NEWIP=y +``` + +代码编译完成后，通过下面命令可以确认newip协议栈代码是否使能成功。 + +```c +root@nip-server:~/harmony_master/harmony# find out/ -name *nip*.o +out/rk3568/obj/third_party/glib/glib/glib_source/guniprop.o +out/kernel/OBJ/linux-5.10/net/newip/nip_addrconf_core.o +out/kernel/OBJ/linux-5.10/net/newip/nip_hdr_decap.o +out/kernel/OBJ/linux-5.10/net/newip/nip_addr.o +out/kernel/OBJ/linux-5.10/net/newip/nip_checksum.o +out/kernel/OBJ/linux-5.10/net/newip/tcp_nip_output.o +... +``` + +禁用NewIP内核协议栈，删除CONFIG_NEWIP使能开关，删除out/kernel目录后重新编译。 + +```c +# CONFIG_NEWIP is not set +``` + +## 说明 + +### 报头字段说明 + +NewIP报文格式由NewIP报头与Payload两部分组成，如下图所示： + +![image-20220901155226078](figures/image-20220901155226078.png) + +1) Dispatch：指示封装子类，数值0b0表示其为极简封装子类，长度为1比特；(0b表示后面数值为二进制)。 + +2) Bitmap：变长，Bitmap默认为紧跟在Dispatch有效位后面的7比特，Bitmap字段长度可持续扩展。Bitmap最后一位置0表示Bitmap结束，最后一位置1表示Bitmap向后扩展1 Byte，直至最后一位置0。 +2) Value: 标识字段的值，长度为1 Byte的整数倍，类型及长度由报头字段语义表确定。 + + + +### 可变长地址格式说明 + +NewIP采用自解释编码，编码格式如下所示： + +| First Byte | Semantics | 地址段有效范围 | +| ---------- | ------------------------------------------------------------ | ------------------------------------------------------------ | +| 0x00 | Address is 0 | 【1字节】0 ~ 220 (0x00 ~ 0xDC) | +| 0x01 | Address is 1 | | +| 0x02 | Address is 2 | | +| ... | ... | | +| 0xDC | Address is 220 | | +| 0xDD | An 16-bit address, which is 0 + 256 * (0xDD - 0xDD) + the last byte value | 【2字节】221 ~ 255 (0x**DD**DD ~ 0x**DD**FF) | +| 0xDE | An 16-bit address, which is 0 + 256 * (0xDE - 0xDD) + the last byte value | 【2字节】256 ~ 511 (0x**DE**00 ~ 0x**DE**FF) | +| 0xDF | An 16-bit address, which is 0 + 256 * (0xDF - 0xDD) + the last byte value | 【2字节】512 ~ 767 (0x**DF**00 ~ 0x**DF**FF) | +| | | | +| ... | ... | | +| 0xF0 | An 16-bit address, which is 0 + 256 * (0xF0 - 0xDD) + the last byte value | 【2字节】4864 ~ 5119 (0x**F0**00 ~ 0x**F0**FF) | +| 0xF1 | An 16-bit address is followed | 【3字节】5120 ~ 65535 (0x**F1** 1400 ~ 0x**F1** FFFF) | +| 0xF2 | An 32-bit address is followed | 【5字节】65536 ~ 4,294,967,295 (0x**F2** 0001 0000 ~ 0x**F2** FFFF FFFF) | +| 0xF3 | An 48-bit address is followed | 【7字节】4,294,967,296 ~ 281,474,976,710,655 (0x**F3** 0001 0000 0000 ~ 0x**F3** FFFF FFFF FFFF) | +| 0xFE | An 56-bit address is followed | 【8字节】0 ~ 72,057,594,037,927,935 (0x**FE**00 0000 0000 0000 ~ 0x**FE**FF FFFF FFFF FFFF) | + +### 接口说明 + +NewIP短地址结构如下： + +```c +enum nip_8bit_addr_index { + NIP_8BIT_ADDR_INDEX_0 = 0, + NIP_8BIT_ADDR_INDEX_1 = 1, + NIP_8BIT_ADDR_INDEX_2 = 2, + NIP_8BIT_ADDR_INDEX_3 = 3, + NIP_8BIT_ADDR_INDEX_4 = 4, + NIP_8BIT_ADDR_INDEX_5 = 5, + NIP_8BIT_ADDR_INDEX_6 = 6, + NIP_8BIT_ADDR_INDEX_7 = 7, + NIP_8BIT_ADDR_INDEX_MAX, +}; + +enum nip_16bit_addr_index { + NIP_16BIT_ADDR_INDEX_0 = 0, + NIP_16BIT_ADDR_INDEX_1 = 1, + NIP_16BIT_ADDR_INDEX_2 = 2, + NIP_16BIT_ADDR_INDEX_3 = 3, + NIP_16BIT_ADDR_INDEX_MAX, +}; + +enum nip_32bit_addr_index { + NIP_32BIT_ADDR_INDEX_0 = 0, + NIP_32BIT_ADDR_INDEX_1 = 1, + NIP_32BIT_ADDR_INDEX_MAX, +}; + +#define nip_addr_field8 v.u.field8 +#define nip_addr_field16 v.u.field16 +#define nip_addr_field32 v.u.field32 + +#pragma pack(1) +struct nip_addr_field { + union { + unsigned char field8[NIP_8BIT_ADDR_INDEX_MAX]; + unsigned short field16[NIP_16BIT_ADDR_INDEX_MAX]; /* big-endian */ + unsigned int field32[NIP_32BIT_ADDR_INDEX_MAX]; /* big-endian */ + } u; +}; + +struct nip_addr { + unsigned char bitlen; /* The address length is in bit (not byte) */ + struct nip_addr_field v; +}; +#pragma pack() + +/* The following structure must be larger than V4. System calls use V4. + * If the definition is smaller than V4, the read process will have memory overruns + * v4: include\linux\socket.h --> sockaddr (16Byte) + */ +#define POD_SOCKADDR_SIZE 3 +struct sockaddr_nin { + unsigned short sin_family; /* [2Byte] AF_NINET */ + unsigned short sin_port; /* [2Byte] Transport layer port, big-endian */ + struct nip_addr sin_addr; /* [9Byte] NIP address */ + + unsigned char sin_zero[POD_SOCKADDR_SIZE]; /* [3Byte] Byte alignment */ +}; +``` + + + +NewIP协议socket接口列表如下： + +| 函数 | 输入 | 输出 | 返回值 | 接口具体描述 | +| -------- | ------------------------------------------------------------ | ---------------------------------------------- | ---------------- | ------------------------------------------------------------ | +| socket | int **domain**, int type, int **protocol** | NA | Socket句柄sockfd | 创建NewIP 协议类型socket，并返回socket实例所对应的句柄。**domain参数填写 AF_NINET，表示创建NewIP协议类型socket。protocol参数填写IPPROTO_TCP或IPPROTO_UDP**。 | +| bind | int sockfd, const **struct sockaddr_nin** *myaddr, socklen_t addrlen | NA | int，返回错误码 | 将创建的socket绑定到指定的IP地址和端口上。**myaddr->sin_family填写AF_NINET**。 | +| listen | int socket, int backlog | NA | int，返回错误码 | 服务端监听NewIP地址和端口 | +| connect | int sockfd, const **struct sockaddr_nin** *addr, aocklen_t addrlen | NA | int，返回错误码 | 客户端创建至服务端的连接 | +| accept | int sockfd, **struct sockaddr_nin** *address, socklen_t *address_len | NA | 返回socket的fd | 服务端返回已建链成功的socket | +| send | int sockfd, const void *msg, int len, unsigned int flags, const **struct sockaddr_nin** *dst_addr, int addrlen | NA | int，返回错误码 | 用于socket已连接的NewIP类型数据发送 | +| recv | int sockfd, size_t len, int flags, **struct sockaddr_nin** *src_addr, | void **buf, int* *fromlen | int，返回错误码 | 用于socket已连接的NewIP类型数据接收 | +| close | int sockfd | NA | int，返回错误码 | 关闭socket，释放资源 | +| ioctl | int sockfd, unsigned long cmd, ... | NA | int，返回错误码 | 对NewIP协议栈相关信息进行查询或更改。 | +| sendto | int sockfd, const void *msg, int len, unsigned int flags, const **struct sockaddr** *dst_addr, int addrlen | NA | int，返回错误码 | 用于socket无连接的NewIP类型数据发送 | +| recvfrom | int sockfd, size_t len, int flags, | void *buf, struct sockaddr *from, int *fromlen | int，返回错误码 | 用于socket无连接的NewIP类型数据接收 | + +### 使用说明 + +NewIP可变长地址配置，路由配置，UDP/TCP收发包demo代码链接如下，NewIP协议栈用户态接口使用方法可以参考demo代码。 + +https://gitee.com/openharmony-sig/communication_sfc_newip/tree/master/examples + +| 文件名 | 功能 | +| --------------------- | ----------------------------- | +| nip_addr_cfg_demo.c | NewIP可变长地址配置demo代码 | +| nip_route_cfg_demo.c | NewIP路由配置demo代码 | +| nip_udp_server_demo.c | NewIP UDP收发包服务端demo代码 | +| nip_udp_client_demo.c | NewIP UDP收发包客户端demo代码 | +| nip_tcp_server_demo.c | NewIP TCP收发包服务端demo代码 | +| nip_tcp_client_demo.c | NewIP TCP收发包客户端demo代码 | +| nip_lib.c | 接口索引获取等API接口demo代码 | + +**基础操作步骤：** + +1、将demo代码拷贝到Linux编译机上，make clean，make all编译demo代码。 + +2、将编译生成二级制文件上传到xxx开发板。 + +3、执行“ifconfig xxx up”开启网卡设备，xxx表示网卡名，比如eth0，wlan0。 + +4、在1号开发板sh下执行“./nip_addr_cfg_demo server”给服务端配置0xDE00（2字节）变长地址，在2号开发板sh下执行“./nip_addr_cfg_demo client”给客户端配置0x50（1字节）变长地址，通过“cat /proc/net/nip_addr”查看内核地址配置结果。 + +5、在1号开发板sh下执行“./nip_route_cfg_demo server”给服务端配置路由，在2号开发板sh下执行“./nip_route_cfg_demo client”给客户端配置路由，通过“cat /proc/net/nip_route”查看内核路由配置结果。 + +以上步骤操作完成后，可以进行UDP/TCP收发包，收发包demo默认使用上面步骤中配置的地址和路由。 + + + +**UDP收发包操作步骤：** + +先在服务端执行“./nip_udp_server_demo”，然后再在客户端执行“./nip_udp_client_demo”，客户端会发送10个NewIP报文，客户端收到报文后再发送给服务端。 + +``` +服务端sh窗口打印内容： +Received -- 1661826989 498038 NIP_UDP # 0 -- from 0x50:57605 +Sending -- 1661826989 498038 NIP_UDP # 0 -- to 0x50:57605 +Received -- 1661826990 14641 NIP_UDP # 1 -- from 0x50:57605 +Sending -- 1661826990 14641 NIP_UDP # 1 -- to 0x50:57605 +Received -- 1661826990 518388 NIP_UDP # 2 -- from 0x50:57605 +Sending -- 1661826990 518388 NIP_UDP # 2 -- to 0x50:57605 +... +Received -- 1661827011 590576 NIP_UDP # 9 -- from 0x50:37758 +Sending -- 1661827011 590576 NIP_UDP # 9 -- to 0x50:37758 + +客户端sh窗口打印内容： +Received --1661827007 55221 NIP_UDP # 0 sock 3 success: 1/ 1/no= 0 +Received --1661827007 557926 NIP_UDP # 1 sock 3 success: 2/ 2/no= 1 +Received --1661827008 62653 NIP_UDP # 2 sock 3 success: 3/ 3/no= 2 +... +Received --1661827011 590576 NIP_UDP # 9 sock 3 success: 10/ 10/no= 9 +``` + + + +**TCP收发包操作步骤：** + +先在服务端执行“./nip_tcp_server_demo”，然后再在客户端执行“./nip_tcp_client_demo”，客户端会发送10个NewIP报文，客户端收到报文后再发送给服务端。 + +``` +服务端sh窗口打印内容： +Received -- 1661760202 560605 NIP_TCP # 0 --:1024 +Sending -- 1661760202 560605 NIP_TCP # 0 --:1024 +Received -- 1661760203 69254 NIP_TCP # 1 --:1024 +Sending -- 1661760203 69254 NIP_TCP # 1 --:1024 +Received -- 1661760203 571604 NIP_TCP # 2 --:1024 +Sending -- 1661760203 571604 NIP_TCP # 2 --:1024 +... +Received -- 1661760207 86544 NIP_TCP # 9 --:1024 +Sending -- 1661760207 86544 NIP_TCP # 9 --:1024 + +客户端sh窗口打印内容： +Received --1661760202 560605 NIP_TCP # 0 sock 3 success: 1/ 1/no= 0 +Received --1661760203 69254 NIP_TCP # 1 sock 3 success: 2/ 2/no= 1 +... +Received --1661760207 86544 NIP_TCP # 9 sock 3 success: 10/ 10/no= 9 +``` + diff --git a/code/linux/net/newip/Kconfig b/code/linux/net/newip/Kconfig index 85b19828550ffd3f8ad95f5bfa128c3f34796369..06cbebb5ca92bc50b48793891edd162bc55c5d87 100644 --- a/code/linux/net/newip/Kconfig +++ b/code/linux/net/newip/Kconfig @@ -14,3 +14,12 @@ menuconfig NEWIP To compile this protocol support as a module, choose M here: the module will be called NewIP. + +if NEWIP +config NEWIP_FAST_KEEPALIVE + tristate "NewIP fast keepalive" + default n + help + Support for NewIP fast keepalive. +endif # NEWIP + diff --git a/code/linux/net/newip/tcp_nip.c b/code/linux/net/newip/tcp_nip.c index 5d1aba3836ca4b7e0af0025563483d97b2e9efac..3d27c37c8510277843e5d2e5ebb1d5c3a31c6ac2 100644 --- a/code/linux/net/newip/tcp_nip.c +++ b/code/linux/net/newip/tcp_nip.c @@ -623,6 +623,7 @@ static const struct inet_connection_sock_af_ops newip_specific = { .mtu_reduced = NULL, }; +#if IS_ENABLED(CONFIG_NEWIP_FAST_KEEPALIVE) #define MAX_NIP_TCP_KEEPIDLE 32767 #define MAX_NIP_TCP_KEEPINTVL 32767 #define MAX_NIP_TCP_KEEPCNT 255 @@ -679,11 +680,13 @@ static int tcp_nip_keepalive_para_update(struct sock *sk, return 0; } +#endif #define NIP_PKT_TOTAL_LEN_BOUNDARY 100000 // 100K #define NIP_KEEPALIVE_PROBES 255 void tcp_nip_keepalive_enable(struct sock *sk) { +#if IS_ENABLED(CONFIG_NEWIP_FAST_KEEPALIVE) int ret; struct tcp_sock *tp = tcp_sk(sk); struct sk_buff *skb = tcp_nip_send_head(sk); @@ -734,10 +737,12 @@ void tcp_nip_keepalive_enable(struct sock *sk) __func__, HZ, tp->keepalive_time, tp->keepalive_probes, tp->keepalive_intvl); tp->nip_keepalive_enable = true; +#endif } void tcp_nip_keepalive_disable(struct sock *sk) { +#if IS_ENABLED(CONFIG_NEWIP_FAST_KEEPALIVE) struct tcp_sock *tp = tcp_sk(sk); if (!tp->nip_keepalive_enable) @@ -776,6 +781,7 @@ void tcp_nip_keepalive_disable(struct sock *sk) DEBUG("%s ok, HZ=%u, idle_ka_probes_out=%u", __func__, HZ, g_nip_idle_ka_probes_out); tp->nip_keepalive_enable = false; +#endif } static void tcp_nip_rtt_init(struct sock *sk) diff --git a/examples/nip_lib.h b/examples/nip_lib.h index d52e5f86bbb7a66dc32a93df732cf2d6b922b364..3a38b93cf48488a9195a3627e93847177c6f74bd 100644 --- a/examples/nip_lib.h +++ b/examples/nip_lib.h @@ -27,17 +27,22 @@ #ifndef _NIP_LIB_H #define _NIP_LIB_H +/* AF_NINET by reading/sys/module/newip/parameters/af_ninet file to get the type value */ +#define AF_NINET 45 + +#define DEMO_INPUT_1 2 /* The DEMO program contains one parameter */ + /* Eth0 and wlan0 are optional. Change the value based on the actual interface */ #define NIC_NAME "eth0" #define BUFLEN 2048 #define LISTEN_MAX 3 -#define PKTCNT 10 // Number of sent packets -#define PKTLEN 1024 // Length of sent packet -#define SLEEP_US 500000 // Packet sending interval (ms) +#define PKTCNT 10 /* Number of sent packets */ +#define PKTLEN 1024 /* Length of sent packet */ +#define SLEEP_US 500000 /* Packet sending interval (ms) */ #define SELECT_TIME 600 -#define TCP_SERVER_PORT 5556 // TCP Server Port -#define UDP_SERVER_PORT 9090 // UDP Server Port +#define TCP_SERVER_PORT 5556 /* TCP Server Port */ +#define UDP_SERVER_PORT 9090 /* UDP Server Port */ int nip_get_ifindex(const char *ifname, int *ifindex); diff --git a/examples/nip_uapi.h b/examples/nip_uapi.h index 6475ff3a614b7d2a7e895a8919a716ae65f58ff0..150c107392a65719208f1ed4260bfa953574cf5a 100644 --- a/examples/nip_uapi.h +++ b/examples/nip_uapi.h @@ -1,40 +1,10 @@ -/* SPDX-License-Identifier: BSD-2-Clause */ -/* - * Copyright (c) 2022 Huawei Device Co., Ltd. - * - * 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. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "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 COPYRIGHT HOLDER OR - * CONTRIBUTORS 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. - */ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ +/* Copyright (c) 2022 Huawei Device Co., Ltd. */ #ifndef _NIP_UAPI_H #define _NIP_UAPI_H #include "nip.h" -/* AF_NINET by reading/sys/module/newip/parameters/AF_NINET file to get the type value */ -#define PF_NINET 45 -#define AF_NINET PF_NINET - -#define DEMO_INPUT_1 2 // The DEMO program contains one parameter - /* The following structure must be larger than V4. 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