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sdp: ignore legacy sctpmap line

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and reorganise the parsing

Bug: None
Change-Id: I21f08297429a0cc0265da00daa681d934fc43d66
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/196643
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#32843}
This commit is contained in:
Philipp Hancke
2020-12-15 12:40:57 +01:00
committed by Commit Bot
parent ce42cbeba8
commit 4793e9e3ce
1 changed files with 35 additions and 29 deletions
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64
pc/webrtc_sdp.cc
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@ -3128,38 +3128,44 @@ bool ParseContent(const std::string& message,
if (!ParseDtlsSetup(line, &(transport->connection_role), error)) {
return false;
}
} else if (cricket::IsDtlsSctp(protocol) &&
HasAttribute(line, kAttributeSctpPort)) {
if (media_type != cricket::MEDIA_TYPE_DATA) {
return ParseFailed(
line, "sctp-port attribute found in non-data media description.",
error);
} else if (cricket::IsDtlsSctp(protocol)) {
//
// SCTP specific attributes
//
if (HasAttribute(line, kAttributeSctpPort)) {
if (media_type != cricket::MEDIA_TYPE_DATA) {
return ParseFailed(
line, "sctp-port attribute found in non-data media description.",
error);
}
if (media_desc->as_sctp()->use_sctpmap()) {
return ParseFailed(
line, "sctp-port attribute can't be used with sctpmap.", error);
}
int sctp_port;
if (!ParseSctpPort(line, &sctp_port, error)) {
return false;
}
media_desc->as_sctp()->set_port(sctp_port);
} else if (HasAttribute(line, kAttributeMaxMessageSize)) {
if (media_type != cricket::MEDIA_TYPE_DATA) {
return ParseFailed(
line,
"max-message-size attribute found in non-data media description.",
error);
}
int max_message_size;
if (!ParseSctpMaxMessageSize(line, &max_message_size, error)) {
return false;
}
media_desc->as_sctp()->set_max_message_size(max_message_size);
} else if (HasAttribute(line, kAttributeSctpmap)) {
// Ignore a=sctpmap: from early versions of draft-ietf-mmusic-sctp-sdp
continue;
}
if (media_desc->as_sctp()->use_sctpmap()) {
return ParseFailed(
line, "sctp-port attribute can't be used with sctpmap.", error);
}
int sctp_port;
if (!ParseSctpPort(line, &sctp_port, error)) {
return false;
}
media_desc->as_sctp()->set_port(sctp_port);
} else if (cricket::IsDtlsSctp(protocol) &&
HasAttribute(line, kAttributeMaxMessageSize)) {
if (media_type != cricket::MEDIA_TYPE_DATA) {
return ParseFailed(
line,
"max-message-size attribute found in non-data media description.",
error);
}
int max_message_size;
if (!ParseSctpMaxMessageSize(line, &max_message_size, error)) {
return false;
}
media_desc->as_sctp()->set_max_message_size(max_message_size);
} else if (cricket::IsRtpProtocol(protocol)) {
//
// RTP specific attrubtes
// RTP specific attributes
//
if (HasAttribute(line, kAttributeRtcpMux)) {
media_desc->set_rtcp_mux(true);