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work on role and tie-break value

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git-svn-id: svn+ssh://svn.savannah.nongnu.org/linphone/trunk@289 3f6dc0c8-ddfe-455d-9043-3cd528dc4637
This commit is contained in:
aymeric 2009-03-03 16:37:07 +00:00
parent a02f26a025
commit 0374f3e092
1 changed files with 45 additions and 19 deletions
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64
linphone/mediastreamer2/src/ice.c
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@ -86,13 +86,10 @@ ice_sendtest( struct CandidatePair *remote_candidate, Socket myFd, StunAddress4
if (remote_candidate->connectivity_check==VALID)
req.hasUseCandidate = TRUE;
if (remote_candidate->rem_controlvalue==0)
{
/* calculated once only */
remote_candidate->rem_controlvalue = random();
remote_candidate->rem_controlvalue = remote_candidate->rem_controlvalue >> 32;
remote_candidate->rem_controlvalue = random();
}
if (remote_candidate->rem_controlvalue==0) {
/* calculated once only */
remote_candidate->rem_controlvalue = random() * (0x7fffffffffffffff/0x7fff);
}
if (remote_candidate->rem_controlling==1)
{
@ -413,20 +410,49 @@ int ice_process_stun_message(RtpSession *session, struct CandidatePair *remote_c
return -1;
}
if ((remote_candidates[0].rem_controlling==0 && msg.hasIceControlling)
||(remote_candidates[0].rem_controlling==1 && msg.hasIceControlled))
{
char buf[STUN_MAX_MESSAGE_SIZE];
int len = sizeof(buf);
ms_error("487 Role Conflict");
_ice_createErrorResponse(&resp, 4, 87, "Role Conflict");
len = stunEncodeMessage(&resp, buf, len, &hmacPassword );
if (len)
sendMessage( rtp_socket, buf, len, remote_addr.addr, remote_addr.port);
return -1;
}
if (remote_candidates->rem_controlvalue==0) {
/* calculated once only */
remote_candidates->rem_controlvalue = random() * (0x7fffffffffffffff/0x7fff);
}
if (remote_candidates[0].rem_controlling==0 && msg.hasIceControlling) {
/* If the agent's tie-breaker is larger than or equal
to the contents of the ICE-CONTROLLING attribute
-> send 487, and do not change ROLE */
if (remote_candidates->rem_controlvalue >= msg.iceControlling.value) {
char buf[STUN_MAX_MESSAGE_SIZE];
int len = sizeof(buf);
ms_error("487 Role Conflict");
_ice_createErrorResponse(&resp, 4, 87, "Role Conflict");
len = stunEncodeMessage(&resp, buf, len, &hmacPassword );
if (len)
sendMessage( rtp_socket, buf, len, remote_addr.addr, remote_addr.port);
return -1;
}
else {
remote_candidates[0].rem_controlling = 1;
}
}
if (remote_candidates[0].rem_controlling==1 && msg.hasIceControlled) {
/* If the agent's tie-breaker is larger than or equal
to the contents of the ICE-CONTROLLED attribute
-> change ROLE */
if (remote_candidates->rem_controlvalue >= msg.iceControlled.value) {
remote_candidates[0].rem_controlling = 0;
}
else {
char buf[STUN_MAX_MESSAGE_SIZE];
int len = sizeof(buf);
ms_error("487 Role Conflict");
_ice_createErrorResponse(&resp, 4, 87, "Role Conflict");
len = stunEncodeMessage(&resp, buf, len, &hmacPassword );
if (len)
sendMessage( rtp_socket, buf, len, remote_addr.addr, remote_addr.port);
return -1;
}
}
/* 7.2.1.3. Learning Peer Reflexive Candidates */
#if 0