=== Description === use $sel() in event_route from evapi module will cause segfault and kamailio crash.
=== How to re-produce ===
--- Step 1. kamailio.cfg: ---
# --- evapi params --- # loadmodule "evapi.so" modparam("evapi", "bind_addr", "127.0.0.1:8448") modparam("evapi", "netstring_format", 1) modparam("evapi", "workers", 4)
# --- set a custom options outside any route block self.MYIP = "1.2.3.4"
# --- set event_route for evapi and invoke $sel; both route will segfault and crash
event_route[evapi:connection-new] { xlog("L_NOTICE", "[ROUTEDEBUG][evapi:connection-new] new connection from $evapi(srcaddr):$evapi(srcport)"); xlog("L_NOTICE", "[ROUTEDEBUG][evapi:connection-new] TEST sel: $sel(cfg_get.self.MYIP)"); } event_route[evapi:message-received] { xlog("L_NOTICE", "[ROUTEDEBUG][evapi:message-received] test sel: $sel(cfg_get.self.MYIP)"); }
--- 2. try connect to evapi ---
You can use any client to try to connect or send message. in bash, you can just use the following command to connect to and send a message:
exec 3<>/dev/tcp/127.0.0.1/5014; printf "5:Hello," >&3;
=== Debug level 3 error log at event_route[evapi:connection-new] ===
Aug 12 16:35:07 SIP /home/pkg/kamailio/sbin/kamailio[47034]: NOTICE: <script>: [ROUTEDEBUG][evapi:connection-new] new connection from 127.0.0.1:27088 Aug 12 16:35:07 SIP /home/pkg/kamailio/sbin/kamailio[46977]: ALERT: <core> [main.c:728]: handle_sigs(): child process 47034 exited by a signal 11 Aug 12 16:35:07 SIP /home/pkg/kamailio/sbin/kamailio[46977]: ALERT: <core> [main.c:731]: handle_sigs(): core was not generated Aug 12 16:35:07 SIP /home/pkg/kamailio/sbin/kamailio[46977]: INFO: <core> [main.c:743]: handle_sigs(): terminating due to SIGCHLD Aug 12 16:35:07 SIP kernel: [28325875.619264] kamailio[47034]: segfault at 10 ip 00007f062cd91470 sp 00007fff5518e068 error 4 in libc-2.13.so[7f062cc6e000+182000] Aug 12 16:35:07 SIP /home/pkg/kamailio/sbin/kamailio[47056]: INFO: <core> [main.c:794]: sig_usr(): signal 15 received Aug 12 16:35:07 SIP /home/pkg/kamailio/sbin/kamailio[47057]: INFO: <core> [main.c:794]: sig_usr(): signal 15 received
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