1 Aug
2022
1 Aug
'22
3:15 a.m.
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### Description
<!--
Explain what you did, what you expected to happen, and what actually happened.
--
some unexpected error in kamailio.log when KSR.xhttp.xhttp_reply(404...)
### Troubleshooting
#### Reproduction
cat /etc/kamailio/kamailio.cfg
```
listen=tcp:127.0.0.1:5060
tcp_accept_no_cl=yes
debug=3
log_stderror=yes
loadmodule "jsonrpcs.so"
loadmodule "tm.so"
loadmodule "sl.so"
loadmodule "pv.so"
loadmodule "xlog.so"
loadmodule "ctl.so"
loadmodule "cfg_rpc.so"
loadmodule "xhttp.so"
loadmodule "app_lua.so"
modparam("xhttp", "event_callback", "ksr_xhttp_event")
modparam("app_lua", "load", "/etc/kamailio/kamailio.lua")
cfgengine "lua"
```
cat /etc/kamailio/kamailio.lua
```
function ksr_request_route()
KSR.sl.send_reply(200, "OK")
KSR.x.exit()
end
function ksr_xhttp_event()
KSR.set_reply_no_connect()
KSR.set_reply_close()
KSR.xhttp.xhttp_reply(404, "Not Found", "", "")
KSR.x.exit()
end
```
curl http://127.0.0.1:5060 -v
<!--
If the issue can be reproduced, describe how it can be done.
--
#### Debugging Data
<!--
If you got a core dump, use gdb to extract troubleshooting data - full backtrace,
local variables and the list of the code at the issue location.
gdb /path/to/kamailio /path/to/corefile
bt full
info locals
list
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```
(paste your debugging data here)
```
#### Log Messages
<!--
Check the syslog file and if there are relevant log messages printed by Kamailio, add them
next, or attach to issue, or provide a link to download them (e.g., to a pastebin site).
--
```
15(5845) DEBUG: <core> [core/ip_addr.c:571]: print_ip(): tcpconn_new: new tcp
connection: 127.0.0.1
15(5845) DEBUG: <core> [core/tcp_main.c:1216]: tcpconn_new(): on port 54884, type 2,
socket 29
15(5845) DEBUG: <core> [core/tcp_main.c:1548]: tcpconn_add(): hashes:
1846:1992:1067, 1
15(5845) DEBUG: <core> [core/io_wait.h:374]: io_watch_add(): processing
io_watch_add(0x563c94544c20, 29, 2, 0x7fb2e4691088) - fd_no=23
15(5845) DEBUG: <core> [core/io_wait.h:599]: io_watch_del(): DBG: io_watch_del
(0x563c94544c20, 29, -1, 0x0) fd_no=24 called
15(5845) DEBUG: <core> [core/tcp_main.c:4545]: handle_tcpconn_ev(): sending to
child, events 1
15(5845) DEBUG: <core> [core/tcp_main.c:4215]: send2child(): selected tcp worker
idx:0 proc:7 pid:5837 for activity on [tcp:127.0.0.1:5060], 0x7fb2e4691088
7(5837) DEBUG: <core> [core/tcp_read.c:1735]: handle_io(): received n=8
con=0x7fb2e4691088, fd=6
7(5837) DEBUG: <core> [core/parser/parse_fline.c:249]: parse_first_line(): first
line type 1 (request) flags 2
7(5837) DEBUG: <core> [core/parser/parse_fline.c:249]: parse_first_line(): first
line type 1 (request) flags 2
7(5837) DEBUG: <core> [core/parser/msg_parser.c:677]: parse_msg(): SIP Request:
7(5837) DEBUG: <core> [core/parser/msg_parser.c:678]: parse_msg(): method:
<GET 7(5837) DEBUG: <core>
[core/parser/msg_parser.c:680]: parse_msg(): uri: </
7(5837) DEBUG: <core> [core/parser/msg_parser.c:682]: parse_msg(): version:
<HTTP/1.1 7(5837) DEBUG:
<core> [core/parser/parse_hname2.c:301]: parse_sip_header_name(): parsed header name
[Host] type 0
7(5837) DEBUG: <core> [core/parser/parse_hname2.c:301]: parse_sip_header_name():
parsed header name [User-Agent] type 28
7(5837) DEBUG: <core> [core/parser/parse_hname2.c:301]: parse_sip_header_name():
parsed header name [Accept] type 23
7(5837) DEBUG: <core> [core/parser/msg_parser.c:91]: get_hdr_field(): found end of
header
7(5837) DEBUG: <core> [core/receive.c:389]: receive_msg(): --- received sip message
- request - call-id: [] - cseq: []
7(5837) DEBUG: <core> [core/receive.c:261]: ksr_evrt_pre_routing(): event route
core:pre-routing not defined
7(5837) DEBUG: <core> [core/receive.c:426]: receive_msg(): handling non-sip request
message
7(5837) DEBUG: xhttp [xhttp_mod.c:371]: xhttp_handler(): new fake msg created (112
bytes):
<GET / HTTP/1.1
Via: SIP/2.0/TCP 127.0.0.1:54884
Host: 127.0.0.1:5060
User-Agent: curl/7.74.0
Accept: */*
7(5837) DEBUG: <core>
[core/parser/parse_fline.c:249]: parse_first_line(): first line type 1 (request) flags 2
7(5837) DEBUG: <core> [core/parser/msg_parser.c:677]: parse_msg(): SIP Request:
7(5837) DEBUG: <core> [core/parser/msg_parser.c:678]: parse_msg(): method:
<GET 7(5837) DEBUG: <core>
[core/parser/msg_parser.c:680]: parse_msg(): uri: </
7(5837) DEBUG: <core> [core/parser/msg_parser.c:682]: parse_msg(): version:
<HTTP/1.1 7(5837) DEBUG:
<core> [core/parser/parse_hname2.c:301]: parse_sip_header_name(): parsed header name
[Via] type 1
7(5837) DEBUG: <core> [core/parser/parse_via.c:2639]: parse_via(): end of header
reached, state=5
7(5837) DEBUG: <core> [core/parser/msg_parser.c:555]: parse_headers(): Via found,
flags=2
7(5837) DEBUG: <core> [core/parser/msg_parser.c:557]: parse_headers(): this is the
first via
7(5837) DEBUG: app_lua [app_lua_api.c:549]: sr_lua_reload_script(): No need to reload
[/etc/kamailio/kamailio.lua] is version 0
7(5837) DEBUG: app_lua [app_lua_api.c:733]: app_lua_run_ex(): executing Lua function:
[[ksr_xhttp_event]]
7(5837) DEBUG: app_lua [app_lua_api.c:735]: app_lua_run_ex(): lua top index is: 11
7(5837) DEBUG: app_lua [app_lua_api.c:1067]: sr_kemi_lua_exec_func_ex(): param[0] for:
xhttp_reply is int: 404
7(5837) DEBUG: app_lua [app_lua_api.c:1063]: sr_kemi_lua_exec_func_ex(): param[1] for:
xhttp_reply is str: Not Found
7(5837) DEBUG: app_lua [app_lua_api.c:1063]: sr_kemi_lua_exec_func_ex(): param[2] for:
xhttp_reply is str:
7(5837) DEBUG: app_lua [app_lua_api.c:1063]: sr_kemi_lua_exec_func_ex(): param[3] for:
xhttp_reply is str:
7(5837) DEBUG: xhttp [xhttp_mod.c:426]: xhttp_send_reply(): sending out response: 404 Not
Found
7(5837) DEBUG: <core> [core/parser/parse_hname2.c:301]: parse_sip_header_name():
parsed header name [Host] type 0
7(5837) DEBUG: <core> [core/parser/parse_hname2.c:301]: parse_sip_header_name():
parsed header name [User-Agent] type 28
7(5837) DEBUG: <core> [core/parser/parse_hname2.c:301]: parse_sip_header_name():
parsed header name [Accept] type 23
7(5837) DEBUG: <core> [core/parser/msg_parser.c:91]: get_hdr_field(): found end of
header
7(5837) DEBUG: <core> [core/msg_translator.c:162]: check_via_address(): (127.0.0.1,
127.0.0.1, 0)
7(5837) DEBUG: <core> [core/tcp_main.c:1644]: _tcpconn_find(): found connection by
id: 1
7(5837) DEBUG: <core> [core/tcp_main.c:2526]: tcpconn_send_put(): send from reader
(5837 (7)), reusing fd
7(5837) DEBUG: <core> [core/tcp_main.c:2761]: tcpconn_do_send(): sending...
7(5837) DEBUG: <core> [core/tcp_main.c:2794]: tcpconn_do_send(): after real write:
c= 0x7fb2e4691088 n=120 fd=6
7(5837) DEBUG: <core> [core/tcp_main.c:2795]: tcpconn_do_send(): buf=
HTTP/1.1 404 Not Found
Sia: SIP/2.0/TCP 127.0.0.1:54884
Server: kamailio (5.6.1 (x86_64/linux))
Content-Length: 0
15(5845) DEBUG: <core> [core/tcp_main.c:3880]: handle_ser_child(): read response=
7fb2e4691088, -1, fd -1 from 7 (5837)
7(5837) DEBUG: <core> [core/parser/parse_fline.c:255]: parse_first_line(): bad
request first line
7(5837) DEBUG: <core> [core/parser/parse_fline.c:258]: parse_first_line(): at line
0 char 16:
7(5837) DEBUG: <core> [core/parser/parse_fline.c:264]: parse_first_line(): parsed
so far: HTTP/1.1 404 Not
7(5837) ERROR: <core> [core/parser/parse_fline.c:271]: parse_first_line():
parse_first_line: bad message (offset: 16)
7(5837) DEBUG: <core> [core/parser/msg_parser.c:673]: parse_msg(): invalid message
7(5837) ERROR: <core> [core/parser/msg_parser.c:747]: parse_msg(): ERROR:
parse_msg: message=<HTTP/1.1 404 Not Found
Sia: SIP/2.0/TCP 127.0.0.1:54884
Server: kamailio (5.6.1 (x86_64/linux))
Content-Length: 0
7(5837) ERROR: <core>
[core/msg_translator.c:3256]: build_sip_msg_from_buf(): parsing failed 7(5837) DEBUG:
app_lua [app_lua_mod.c:164]: sr_kemi_config_engine_lua(): execution of route type 513 with
name [ksr_xhttp_event] returned 1
7(5837) DEBUG: <core> [core/receive.c:432]: receive_msg(): finished handling
non-sip request message
7(5837) DEBUG: <core> [core/usr_avp.c:637]: destroy_avp_list(): destroying list
(nil)
7(5837) DEBUG: <core> [core/usr_avp.c:637]: destroy_avp_list(): destroying list
(nil)
7(5837) DEBUG: <core> [core/usr_avp.c:637]: destroy_avp_list(): destroying list
(nil)
7(5837) DEBUG: <core> [core/usr_avp.c:637]: destroy_avp_list(): destroying list
(nil)
7(5837) DEBUG: <core> [core/usr_avp.c:637]: destroy_avp_list(): destroying list
(nil)
7(5837) DEBUG: <core> [core/usr_avp.c:637]: destroy_avp_list(): destroying list
(nil)
7(5837) DEBUG: <core> [core/xavp.c:541]: xavp_destroy_list(): destroying xavp list
(nil)
7(5837) DEBUG: <core> [core/xavp.c:541]: xavp_destroy_list(): destroying xavp list
(nil)
7(5837) DEBUG: <core> [core/xavp.c:541]: xavp_destroy_list(): destroying xavp list
(nil)
7(5837) DEBUG: <core> [core/receive.c:628]: receive_msg(): cleaning up
7(5837) DEBUG: <core> [core/io_wait.h:374]: io_watch_add(): processing
io_watch_add(0x563c94588ec0, 6, 2, 0x7fb2e4691088) - fd_no=1
7(5837) DEBUG: <core> [core/io_wait.h:599]: io_watch_del(): DBG: io_watch_del
(0x563c94588ec0, 6, -1, 0x10) fd_no=2 called
7(5837) DEBUG: <core> [core/tcp_read.c:1870]: handle_io(): removing from list
0x7fb2e4691088 id 1 fd 6, state -1, flags 4028, main fd -1, refcnt 1 ([127.0.0.1]:54884
-> [127.0.0.1]:5060)
7(5837) DEBUG: <core> [core/tcp_read.c:1653]: release_tcpconn(): releasing con
0x7fb2e4691088, state -2, fd=6, id=1 ([127.0.0.1]:54884 -> [127.0.0.1]:5060)
7(5837) DEBUG: <core> [core/tcp_read.c:1657]: release_tcpconn(): extra_data (nil)
15(5845) DEBUG: <core> [core/tcp_main.c:3641]: handle_tcp_child(): reader response=
7fb2e4691088, -2 from 0
15(5845) DEBUG: <core> [core/tcp_main.c:3566]: tcp_emit_closed_event(): TCP closed
event creation triggered (reason: 0)
15(5845) DEBUG: <core> [core/tcp_main.c:3574]: tcp_emit_closed_event(): no callback
registering for handling TCP closed event
2(5832) DEBUG: <core> [core/timer.c:422]: adjust_ticks(): adjusting timer ticks
(677813966) with 312 ms (5 ticks)
2(5832) DEBUG: <core> [core/timer.c:422]: adjust_ticks(): adjusting timer ticks
(677815246) with 250 ms (4 ticks)
2(5832) DEBUG: <core> [core/timer.c:422]: adjust_ticks(): adjusting timer ticks
(677816206) with 250 ms (4 ticks)
2(5832) DEBUG: <core> [core/timer.c:422]: adjust_ticks(): adjusting timer ticks
(677817406) with 312 ms (5 ticks)
```
#### SIP Traffic
<!--
If the issue is exposed by processing specific SIP messages, grab them with ngrep or save
in a pcap file, then add them next, or attach to issue, or provide a link to download them
(e.g., to a pastebin site).
--
```
(paste your sip traffic here)
```
### Possible Solutions
<!--
If you found a solution or workaround for the issue, describe it. Ideally, provide a pull
request with a fix.
--
### Additional Information
* **Kamailio Version** - output of `kamailio -v`
```
Kamailio5.6.1
```
* **Operating System**:
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CentOS 7.1, ...), MacOS, xBSD, Solaris, ...;
Kernel details (output of `lsb_release -a` and `uname -a`)
--
```
Debian11
```
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