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Wifi-5798. Fix for SM crash during VoIP calls

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nf_uccdetect module tries and analyze the traffic to detect
VoIP calls, and generate events up to the user space. This module
assigns value -1 as RadioID for packets from Ethernet interface
which eventually is used as an array index, eventually running
into an Assert and crash. Fix is to skip these packets from
Ethernet interface for the analysis.

Signed-off-by: ravi vaishnav <ravi.vaishnav@netexperience.com>
This commit is contained in:
ravi vaishnav
2021-11-18 13:10:57 -05:00
committed by Arif
parent e8483f021b
commit 06ca778908
1 changed files with 13 additions and 1 deletions
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14
feeds/wlan-ap/modules/nf_uccdetect/src/nf_uccdetect.c
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@@ -359,7 +359,7 @@ int get_if_type(char *name) {
*/
int get_radio_id(char *name) {
char id[4] = {'\0','\0','\0'};
long res;
long res = -2;
int i;
if (!strncmp(name, "wlan", 4)) {
@@ -1124,6 +1124,9 @@ void voip_generate_report_event(struct mac_entry * HashPtr,
}
WiFiIf = get_radio_id(Intrf->name);
if (WiFiIf < 0)
return;
memset( &SipCallEnd, 0, sizeof( SipCallEnd ) );
SipCallEnd.SessionId = HashPtr->SipSessionId;
@@ -1227,6 +1230,9 @@ void voip_generate_end_event(struct mac_entry * HashPtr, unsigned int Reason)
int WiFiIf = 0;
WiFiIf = get_radio_id(HashPtr->port->name);
if (WiFiIf < 0)
return;
memset( &SipCallEnd, 0, sizeof( SipCallEnd ) );
SipCallEnd.SessionId = HashPtr->SipSessionId;
@@ -1631,6 +1637,9 @@ int voip_sip_packet_analyze(unsigned char * Message, unsigned char * EndPtr,
WiFiIf = get_radio_id(HashPtr->port->name);
if (WiFiIf < 0)
return (-1);
iac_send_message(&VoipSession, sizeof(struct voip_session));
voip_generate_start_event( HashPtr, VoipSession.SipSessionId, WiFiIf );
@@ -1761,6 +1770,9 @@ void voip_heuristic_flow_call_start(struct mac_entry * hash_ptr,
WiFiIf = get_radio_id(hash_ptr->port->name);
if (WiFiIf < 0)
return;
if( IsTcp )
{
hash_ptr->RtpIpTo = hash_ptr->TcpFlows[flow_index].SrcIp;