1. OpenSIPS 源码下载

使用以下命令即可下载 OpenSIPS 的源码，笔者下载的是比较稳定的 3.1 版本，读者有兴趣也可前往 官方传送门

sudo git clone https://github.com/OpenSIPS/opensips.git -b 3.1 opensips-3.1

2. 工具准备

在本地机器上编译 OpenSIPS 源码可能会有许多工具缺失，根据笔者的经验可以先执行以下命令下载相关工具。如果在编译过程中出现类似 make : flex: Command not found 这种报错，一般是本地缺少对应的软件或者依赖，直接按照提示使用 yum 命令下载相应工具即可，如本例可使用 yum install -y flex 命令

sudo yum install -y mysql-devel libmicrohttpd-devel bison flex

3. 编译安装

1. 进入 OpenSIPS 源码根目录，执行 sudo make menuconfig 命令，则如下进入编译时配置界面，该界面使用右箭头进入下一级，左箭头返回上一级，空格选中

   

2. 笔者进入菜单 Configure Compile Options --> Configure Excluded Modules 空格勾选 db_mysql 和 httpd，然后返回 Configure Compile Options --> Save Changes 回车保存配置。最后返回上一级菜单，回车选中 Compile And Install OpenSIPS 开始编译安装 OpenSIPS

   

3. 编译完成后会回到菜单界面，回车选中 Exit & Save All Changes 即可完成安装。由于笔者指定了 mysql 作为 OpenSIPS 的数据库，则需要使用 opensips-cli 工具初始化数据库后才能启动 OpenSIPS 实例

4. opensips-cli 工具安装

1. 该工具需要匹配 OpenSIPS 版本，读者可前往 官方传送门 选择相应的参数，最终确定一个命令并终端执行。笔者是 CentOS 7 系统的 3.1 版本 OpenSIPS，故执行以下命令即可

   sudo yum install https://yum.opensips.org/3.1/releases/el/7/x86_64/opensips-yum-releases-3.1-6.el7.noarch.rpm

2. 以上命令执行完成，执行下面的命令安装 opensips-cli 工具

   sudo yum install -y opensips-cli

3. 安装完成后，执行命令 vim ~/.opensips-cli.cfg 在当前用户目录下本地新增一个 opensips-cli 配置文件，读者可复制以下内容，但需要自行配置关键的数据库连接串信息

   [default]
   log_level: WARNING
   prompt_name: opensips-cli
   prompt_intro: Welcome to OpenSIPS Command Line Interface!
   prompt_emptyline_repeat_cmd: False
   history_file: ~/.opensips-cli.history
   history_file_size: 1000
   output_type: pretty-print
   fifo_file: /tmp/opensips_fifo
   communication_type: http#database_modules: acc clusterer dialog dialplan dispatcher domain rtpproxy usrloc
   database_modules: ALL
   # 管理员账号连接串，自行修改
   database_admin_url: mysql://root:123456@localhost:3306
   # 普通账户连接串，自行修改
   database_url: mysql://root:123456@localhost:3306
   database_name: opensips
   # 修改成 opensips 源码路径下的scripts
   database_schema_path: /home/root/opensips-3.1/scripts
   

4. 以上步骤执行完，执行命令 opensips-cli -x database create 创建 OpenSIPS 依赖的数据库表

5. OpenSIPS 实例启动后，可以通过执行 opensips-cli -i default 连接到 OpenSIPS，在命令界面查看 OpenSIPS 实例信息，读者如有兴趣可前往 官方传送门 了解支持的命令

5. 启动 OpenSIPS 实例

1. 经过以上步骤，OpenSIPS 依赖的数据库表已经建好，接下来使用命令 vim ~/opensips.cfg 在当前用户目录创建 OpenSIPS 配置文件，读者可以复制以下内容，自行修改数据库连接及监听 IP 端口等内容

   ####### Global Parameters #########log_level=4log_stderror=nolog_facility=LOG_LOCAL0/* uncomment the following lines to enable debugging */#debug_mode=yes/* uncomment the next line to enable the auto temporary blacklisting of
   not available destinations (default disabled) */#disable_dns_blacklist=no/* uncomment the next line to enable IPv6 lookup after IPv4 dns
   lookup failures (default disabled) */#dns_try_ipv6=yes/* comment the next line to enable the auto discovery of local aliases
   based on reverse DNS on IPs */auto_aliases=nomhomed=yes#alias=35.187.154.207listen=udp:127.0.0.1:8060   # CUSTOMIZE MEsocket=ws:127.0.0.1:8090  # CUSTOMIZE ME####### Modules Section #########set module pathmpath="/usr/local//lib64/opensips/modules/"#### udp protocol moduleloadmodule "proto_udp.so"loadmodule "proto_ws.so"modparam("proto_ws", "ws_port", 8090)#### SIGNALING moduleloadmodule "signaling.so"#### StateLess moduleloadmodule "sl.so"#### Transaction Moduleloadmodule "tm.so"modparam("tm", "fr_timeout", 5)modparam("tm", "fr_inv_timeout", 30)modparam("tm", "restart_fr_on_each_reply", 0)modparam("tm", "onreply_avp_mode", 1)#### Record Route Moduleloadmodule "rr.so"/* do not append from tag to the RR (no need for this script) */#modparam("rr", "append_fromtag", 0)modparam("rr", "enable_double_rr", 1)#### MAX ForWarD moduleloadmodule "maxfwd.so"#### SIP MSG OPerationS moduleloadmodule "sipmsgops.so"#### MYSQL moduleloadmodule "db_mysql.so"#### drouting moduleloadmodule "drouting.so"modparam("drouting", "db_url","mysql://root:123456@localhost:3306/opensips")modparam("drouting", "default_group", 1)loadmodule "httpd.so"modparam("httpd", "port", 8888)loadmodule "mi_fifo.so"loadmodule "mi_http.so"loadmodule "acc.so"modparam("acc", "early_media", 0)modparam("acc", "report_cancels", 0)modparam("acc", "detect_direction", 0)modparam("acc", "db_url","mysql://root:123456@localhost:3306/opensips") # CUSTOMIZE ME#### USeR LOCation moduleloadmodule "usrloc.so"modparam("usrloc", "nat_bflag", "NAT")modparam("usrloc", "db_mode",   2)modparam("usrloc", "db_url","mysql://root:123456@localhost:3306/opensips") # CUSTOMIZE ME#### REGISTRAR moduleloadmodule "registrar.so"#### AUTHentication modulesloadmodule "auth.so"loadmodule "auth_db.so"modparam("auth_db", "calculate_ha1", 1)modparam("auth_db|uri", "db_url","mysql://root:123456@localhost:3306/opensips") # CUSTOMIZE MEmodparam("auth_db", "load_credentials", "")#### Nathelper protocolloadmodule "nathelper.so"modparam("registrar|nathelper", "received_avp", "$avp(rcv)")#### DIALOG moduleloadmodule "dialog.so"modparam("dialog", "dlg_match_mode", 1)modparam("dialog", "default_timeout", 21600)  # 6 hours timeoutmodparam("dialog", "db_mode", 1)modparam("dialog", "db_url","mysql://root:123456@localhost:3306/opensips") # CUSTOMIZE ME# main request routing logicroute{if (!mf_process_maxfwd_header(10)) {send_reply(483,"Too Many Hops");exit;}# 有 totag 意味着dialog已经建立if (has_totag()) {# handle hop-by-hop ACK (no routing required)if ( is_method("ACK") && t_check_trans() ) {t_relay();exit;}# sequential request within a dialog should# take the path determined by record-routingif ( !loose_route() ) {# we do record-routing for all our traffic, so we should not# receive any sequential requests without Route hdr.send_reply(404,"Not here");exit;}#loose_route();if (is_method("BYE")) {# do accounting even if the transaction faileddo_accounting("db","failed");}# 这里lookup是为了转成注册到opensips 的ua对应r-urilookup("location");# route it out to whatever destination was set by loose_route()# in $du (destination URI).route(relay);exit;}# handle cancel and re-transmissionsif ( is_method("CANCEL") ) {if ( t_check_trans() )t_relay();exit;}# absorb retransmissions, but do not create transactiont_check_trans();if ( !(is_method("REGISTER")  ) ) {if (!is_from_gw(1)) {# authenticate if from local subscriber# authenticate all initial non-REGISTER request that pretend to be# generated by local subscriber (domain from FROM URI is local)if (!proxy_authorize("", "subscriber")) {proxy_challenge("");exit;}consume_credentials();# caller authenticated}}# preloaded route checkingif (loose_route()) {xlog("L_ERR","Attempt to route with preloaded Route's [$fu/$tu/$ru/$ci]");if (!is_method("ACK"))send_reply(403,"Preload Route denied");exit;}# record routingif (!is_method("REGISTER|MESSAGE"))record_route();# account only INVITEsif (is_method("INVITE")) {# create dialog with timeoutif ( !create_dialog("B") ) {send_reply(500,"Internal Server Error");exit;}# 通过动态路由找到合适的duif (!do_routing()) {if (!lookup("location")) {send_reply(404,"Not Found");exit;}}#$du = "sip:0.0.0.0:8060";do_accounting("db");}if (is_method("REGISTER")) {# authenticate the REGISTER requestsif (!www_authorize("", "subscriber")) {www_challenge("");exit;}fix_nated_register();setbflag("NAT");if (!save("location"))sl_reply_error();exit;}# requests for my domainif (is_method("PUBLISH|SUBSCRIBE")) {send_reply(503, "Service Unavailable");exit;}if ($rU==NULL) {# request with no Username in RURIsend_reply(484,"Address Incomplete");exit;}do_accounting("db","missed");route(relay);}route[relay] {# for INVITEs enable some additional helper routesif (is_method("INVITE")) {rtpproxy_offer();t_on_branch("per_branch_ops");t_on_reply("handle_nat");t_on_failure("missed_call");}if (!t_relay()) {send_reply(500,"Internal Error");}exit;}branch_route[per_branch_ops] {xlog("new branch at $ru\n");}onreply_route[handle_nat] {rtpproxy_answer();fix_nated_contact();xlog("test");}failure_route[missed_call] {if (t_was_cancelled()) {exit;}}
   

2. 配置脚本准备好后，执行 opensips -f ~/opensips.cfg -D 命令启动OpenSIPS 实例，该命令中 -f 用于指定启动配置文件，-D 用于指定前台启动模式