版本 kamailio 5.7.x
IP 地址 192.168.43.68
窥视 usrloc 细节，重点是内存跟数据库的同步
慢慢测试，慢慢写
ul.rm vs ul.rm_contact
这二个不一样，比如 eyebeam 以 1000 注册，同时 microsip 也以 1000 注册
执行 ul.rm location 1000@192.168.43.68
就把 eyebeam 和 microsip 都删除掉了
ul.rm_contact 可以按需删除，比如只删除 eybeam
下面是例子：
eyebeam 注册，
ul.dump 得知 Address: sip:1000@192.168.43.68:57492;rinstance=020b7ff3f71cb288
ul.rm_contact location 1000@192.168.43.68 sip:1000@192.168.43.68:57492;rinstance=020b7ff3f71cb288
就成功删除了 eyebeam
ul.rm 和删表
ul.rm 之后内存里面已经找不到 eyebeam, 但 location 表是不是马上就删除 eybeam？
配置下面几个参数，进行测试:
modparam("usrloc", "timer_interval", 3600) # 这么大仅仅 是为了测试，生产上不建议
modparam("usrloc", "timer_procs", 1)
modparam("usrloc", "use_domain", MULTIDOMAIN)
modparam("usrloc", "db_url", DBURL)
modparam("usrloc", "db_mode", 1)
modparam("usrloc", "db_timer_clean", 1)
modparam("usrloc", "handle_lost_tcp", 1)
modparam("usrloc", "close_expired_tcp", 1)
结果是 ul.rm 之后， location 表马上就删除了 eyebeam
注册过期和删表
eybeam 用 tcp 方式注册
之后在任务管理器里面删除 eyebeam
测试的结果是 ul.dump 等到过期后 Expires 的值是 expired，但 location 表里面照样有 eyebeam, 要等到 timer_interval 到期才会自动删表
在路由里面处理注册过期事件，调用 ul.rm_contact 才能起到删表的目的(ul.flush也可，强迫缓存写表)
到底要怎样做，回头再补充
基本的思路是：
检查 save 返回值，如果是新注册，就要记录下来
加载 tcpops 模块，tcp 事件里面，如果是 close 或者是 reset, 调用 ul.rm_contact
当然，如果是 udp 注册，就要使能 usrloc 的 ka_mode 参数（这个暂时不做测试，我的客户主要用 JsSIP）
路由处理
usrloc 模块同上
loadmodule "tcpops.so"
loadmodule "htable.so"
loadmodule "jansson.so"
modparam("registrar", "method_filtering", 1)
/* uncomment the next line to disable parallel forking via location */
modparam("registrar", "append_branches", 0)
/* uncomment the next line not to allow more than 10 contacts per AOR */
modparam("registrar", "max_contacts", 10)
/* max value for expires of registrations */
modparam("registrar", "max_expires", 3600)
/* set it to 1 to enable GRUU */
modparam("registrar", "gruu_enabled", 0)
/* set it to 0 to disable Path handling */
modparam("registrar", "use_path", 1)
/* save Path even if not listed in Supported header */
modparam("registrar", "path_mode", 0)
modparam("registrar", "xavp_cfg", "reg")
modparam("registrar", "xavp_rcd", "ulrcd")
modparam("registrar", "case_sensitive", 1)
modparam("registrar", "xavp_rcd_mask", 0)
modparam("htable", "htable", "tcpusrloc=>size=8;autoexpire=3600;")
Handle SIP registrations
route[REGISTRAR] {
if (!is_method("REGISTER")) return;
if(isflagset(FLT_NATS)) {
setbflag(FLB_NATB);
#!ifdef WITH_NATSIPPING
do SIP NAT pinging
setbflag(FLB_NATSIPPING);
#!endif
}
if (!save("location")) {
sl_reply_error();
}
if ((rc == 1) \|\| (rc == 2)){
xnotice("ruid = $xavp(ulrcd[0]=>ruid)\n");
xnotice("contact = $xavp(ulrcd[0]=>contact)\n");
if(reg_fetch_contacts("location", "$fu", "caller")){
$avp(i) = 0;
while(avp(i) \< (ulc(caller=>count))){
#xnotice("i=$avp(i)\n");
xnotice("$xavp(ulrcd[0]=>ruid)\n");
xnotice("(ulc(caller=\>ruid)\[avp(i)])");
if(xavp(ulrcd\[0\]=\>ruid) == (ulc(caller=>ruid)[$avp(i)])) {
avp(aor) = _s(fU@fd);
avp(conid) = (ulc(caller=>conid)[$avp(i)]);
if (avp(conid) == null) {
xnotice("udpconn\n");
} else {
avp(k) = avp(conid);
avp(v) = _s({"contact": "xavp(ulrcd\[0\]=\>contact)", "aor": "avp(aor)"});
sht(tcpusrloc=\>avp(k)) = $avp(v);
xnotice("tcpconn\n");
}
}
avp(i) = avp(i) + 1;
}
reg_free_contacts("caller");
} else {
xerr("reg_fetch_contacts err\n");
}
}
exit;
}
eyebeam tcp 注册
kamcmd htable.dump tcpusrloc
{
entry: 55
size: 1
slot: {
{
name: 1
value: {"contact": "sip:1000@192.168.43.68:54071;transport=TCP;rinstance=e65785e1e29b4605", "aor"： "1000@192.168.43.68"}
type: str
}
}
}
event_route[tcp:closed] {
xlog("L_INFO", "proto connection closed (conid)\n");
route(rm_contact);
}
event_route[tcp:timeout] {
xlog("L_INFO", "proto connection timed out (conid)\n");
route(rm_contact);
}
event_route[tcp:reset] {
xlog("L_INFO", "proto connection reset by peer (conid)\n");
route(rm_contact);
}
route[rm_contact] {
avp(k) = conid;
avp(j) = sht(tcpusrloc=>$avp(k));
if (avp(j) == null){
return;
}
xnotice("rm_contact, json = $avp(j)\n");
if (!jansson_get("contact", avp(j), "avp(contact)")) {
return;
}
xnotice("contact = $avp(contact)\n");
if (!jansson_get("aor", avp(j), "avp(aor)")) {
return;
}
xnotice("aor = $avp(aor)\n" );
rpc
jansson_set("string", "jsonrpc", "2.0", "$avp(req)");
jansson_set("string", "method", "ul.rm_contact", "$avp(req)");
$avp(params) = "[]";
jansson_append("string", "", "location", "$avp(params)");
jansson_append("string", "", "avp(aor)", "avp(params)");
jansson_append("string", "", "avp(contact)", "avp(params)");
jansson_set("array", "params", avp(params), "avp(req)");
xnotice("req = $avp(req)\n");
jsonrpc_exec("$avp(req)");
xinfo("code = $jsonrpl(code)\n");
xinfo("body = $jsonrpl(body)\n");
}
逻辑看起来没有问题，但实际执行起来，不对
req = {"jsonrpc":"2.0","method":"ul.rm_contact","params":["location","1000@192.168.43.61","sip:1000@192.168.43.68:60146;transport=TCP;rinstance=1d88e94f64296775"]}
<core> [db.c:489]: db_use_table(): invalid connection parameter
usrloc [ucontact.c:1602]: db_delete_ucontact_ruid(): sql use_table failed
usrloc [urecord.c:656]: delete_ucontact(): failed to remove contact from database
有可能 tcp事件路由里面不能调用 rpc, 我不太确定
引人 mqueue 模块，完美解决，哈哈
loadmodule "mqueue.so"
loadmodule "rtimer.so"
modparam("mqueue", "mqueue", "name=myq;size=20;")
modparam("rtimer", "timer", "name=nsqt;interval=1;mode=1;")
modparam("rtimer", "exec", "timer=nsqt;route=RUN_CDR_PUBLISH")
。。。
细节不再提供，别再等了