4 Oct
2016
4 Oct
'16
7:46 p.m.
When I enable SIP.js keep-alive, it sends double CR-LFs to Kamailio via websocket, however
Kamailio understands it as a malformed SIP message, and therefore does not reply with a
single CR-LF.
Debug log from websocket module upon arrival of keep-alive:
`15(88) DEBUG: websocket [ws_frame.c:415]: decode_and_validate_ws_frame(): decoding
WebSocket frame`
`15(88) DEBUG: websocket [ws_frame.c:451]: decode_and_validate_ws_frame(): supported
non-control frame: 0x1`
`15(88) DEBUG: websocket [ws_frame.c:550]: decode_and_validate_ws_frame(): Rx (decoded):`
`
`
`15(88) DEBUG: websocket [ws_frame.c:684]: ws_frame_receive(): Rx SIP message:`
`
`
`
`
`15(88) DEBUG: websocket [ws_conn.c:383]: wsconn_put(): wsconn_put start for
[0x7fc8cbd45860] refcnt [2]`
`15(88) DEBUG: websocket [ws_conn.c:416]: wsconn_put(): wsconn_put end for
[0x7fc8cbd45860] refcnt [1]`
`15(88) INFO: <core> [parser/parse_fline.c:87]: parse_first_line(): ERROR:
parse_first_line: message too short: 0`
`15(88) ERROR: <core> [parser/parse_fline.c:257]: parse_first_line():
parse_first_line: bad message (offset: 0)`
`15(88) ERROR: <core> [parser/msg_parser.c:671]: parse_msg(): ERROR: parse_msg:
message=<`
` `
`>`
`15(88) ERROR: <core> [receive.c:173]: receive_msg(): core parsing of SIP message
failed (10.0.1.73:1043/6)`
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