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Fixed the out of sequence frame condition 

Redmine Bug#1966
IAM ->
<-REL
<-ACM
<-ANM

ACM sets the reset flag
ANM sets the group reset flag
when both reset flags are set we got into infinite loop
This commit is contained in:
Nenad Corbic 2011-11-24 19:19:58 -05:00
parent cb1d5be5e6
commit 69c62f7b38
1 changed files with 20 additions and 12 deletions
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32
libs/freetdm/src/ftmod/ftmod_sangoma_ss7/ftmod_sangoma_ss7_handle.c
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@ -322,12 +322,14 @@ handle_glare:
default: /* should not have gotten an IAM while in this state */
SS7_ERROR_CHAN(ftdmchan, "Got IAM on channel in invalid state(%s)...reset!\n", ftdm_channel_state2str (ftdmchan->state));
/* reset the cic */
sngss7_set_ckt_flag(sngss7_info, FLAG_RESET_TX);
/* move the state of the channel to RESTART to force a reset */
ftdm_set_state(ftdmchan, FTDM_CHANNEL_STATE_RESTART);
/* throw the TX reset flag */
if (!sngss7_tx_reset_status_pending(sngss7_info)) {
sngss7_info->ckt_flags=0;
sngss7_set_ckt_flag(sngss7_info, FLAG_RESET_TX);
/* go to RESTART */
ftdm_set_state(ftdmchan, FTDM_CHANNEL_STATE_RESTART);
}
break;
/**************************************************************************/
} /* switch (ftdmchan->state) */
@ -393,11 +395,14 @@ ftdm_status_t handle_con_sta(uint32_t suInstId, uint32_t spInstId, uint32_t circ
SS7_ERROR_CHAN(ftdmchan, "RX ACM in invalid state :%s...resetting CIC\n",
ftdm_channel_state2str (ftdmchan->state));
/* reset the cic */
sngss7_set_ckt_flag(sngss7_info, FLAG_RESET_TX);
/* throw the TX reset flag */
if (!sngss7_tx_reset_status_pending(sngss7_info)) {
sngss7_info->ckt_flags=0;
sngss7_set_ckt_flag(sngss7_info, FLAG_RESET_TX);
/* go to RESTART */
ftdm_set_state(ftdmchan, FTDM_CHANNEL_STATE_RESTART);
/* go to RESTART */
ftdm_set_state(ftdmchan, FTDM_CHANNEL_STATE_RESTART);
}
break;
/**********************************************************************/
} /* switch (ftdmchan->state) */
@ -657,10 +662,13 @@ ftdm_status_t handle_con_cfm(uint32_t suInstId, uint32_t spInstId, uint32_t circ
SS7_INFO_CHAN(ftdmchan,"[CIC:%d]Rx ANM/CON\n", sngss7_info->circuit->cic);
/* throw the TX reset flag */
sngss7_set_ckt_flag(sngss7_info, FLAG_GRP_RESET_TX);
if (!sngss7_tx_reset_status_pending(sngss7_info)) {
sngss7_info->ckt_flags=0;
sngss7_set_ckt_flag(sngss7_info, FLAG_RESET_TX);
/* go to RESTART */
ftdm_set_state(ftdmchan, FTDM_CHANNEL_STATE_RESTART);
/* go to RESTART */
ftdm_set_state(ftdmchan, FTDM_CHANNEL_STATE_RESTART);
}
break;
/**************************************************************************/