FreeCalypso > hg > themwi-system-sw
view sip-in/retrans.c @ 112:6aa63cf4620a
sip-in call clearing: select timeout implemented
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Wed, 28 Sep 2022 18:59:55 -0800 |
parents | c1c94b7fc2e2 |
children | bb9a75557f59 |
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/* * In this module we handle retransmission of INVITE responses * and BYE requests. */ #include <sys/types.h> #include <sys/socket.h> #include <sys/time.h> #include <netinet/in.h> #include <stdio.h> #include <stdint.h> #include <stdlib.h> #include <string.h> #include <strings.h> #include <syslog.h> #include "../include/gsm48_const.h" #include "../libsip/out_msg.h" #include "call.h" extern unsigned cfg_retrans_count; extern unsigned sip_linger_error; extern struct call *call_list; void run_periodic_retrans() { struct call *call; struct sip_msg_out msg; for (call = call_list; call; call = call->next) { switch (call->sip_state) { case SIP_STATE_RINGING_REL: if (call->sip_tx_count < cfg_retrans_count) { start_response_out_msg(&msg, "180 Ringing"); fill_invite_resp_from_call(&msg, call); out_msg_add_header(&msg, "Require", "100rel"); out_msg_add_header(&msg, "RSeq", "1"); out_msg_finish(&msg); sip_tx_packet(&msg, &call->udp_sin); call->sip_tx_count++; } else { call->overall_state = OVERALL_STATE_TEARDOWN; disconnect_mncc(call, GSM48_CAUSE_LOC_PRN_S_LU, GSM48_CC_CAUSE_INTERWORKING); disconnect_tmgw(call); strcpy(call->invite_fail, "504 100rel retransmissions exhausted"); signal_invite_error(call); } break; case SIP_STATE_INVITE_200: if (call->sip_tx_count < cfg_retrans_count) { fill_invite_200_resp(&msg, call); sip_tx_packet(&msg, &call->udp_sin); call->sip_tx_count++; } else { call->overall_state = OVERALL_STATE_TEARDOWN; disconnect_mncc(call, GSM48_CAUSE_LOC_PRN_S_LU, GSM48_CC_CAUSE_INTERWORKING); disconnect_tmgw(call); initiate_bye(call); } break; case SIP_STATE_INVITE_ERR: if (call->sip_tx_count < cfg_retrans_count) { start_response_out_msg(&msg, call->invite_fail); fill_invite_resp_from_call(&msg, call); out_msg_finish(&msg); sip_tx_packet(&msg, &call->udp_sin); call->sip_tx_count++; } else { call->sip_state = SIP_STATE_ENDED; sip_mark_end_time(call, sip_linger_error); transition_dead_sip(call); } break; case SIP_STATE_BYE_SENT: if (call->sip_tx_count < cfg_retrans_count) { fill_bye_out_msg(&msg, call); sip_tx_packet(&msg, &call->udp_sin); call->sip_tx_count++; } else { call->sip_state = SIP_STATE_ENDED; sip_mark_end_time(call, sip_linger_error); transition_dead_sip(call); } break; } } }