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[#2522] Add basic SRTP attribute in sdp

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This commit is contained in:
Alexandre Savard
2010-01-06 12:59:09 -05:00
parent 25332552e7
commit c0ae25bbc5
2 changed files with 41 additions and 0 deletions
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33
sflphone-common/src/sip/sdp.cpp
View File

@ -130,6 +130,8 @@ void Sdp::set_media_descriptor_line (sdpMedia *media, pjmedia_sdp_media** p_med)
_debug ("No hash specified");
}
// sdp_add_srtp_attribute (med);
*p_med = med;
}
@ -360,6 +362,37 @@ void Sdp::sdp_add_media_description()
}
}
void Sdp::sdp_add_srtp_attribute (pjmedia_sdp_media* media)
{
char tempbuf[256];
std::string crypto_suite = "AES_CM_128_HMAC_SHA1_32";
std::string application = "srtp";
std::string key = "inline:16/14/NzB4d1BINUAvLEw6UzF3WSJ+PSdFcGdUJShpX1Zj/2^20/1:32";
pjmedia_sdp_attr *attribute = (pjmedia_sdp_attr*) pj_pool_zalloc(_pool, sizeof(pjmedia_sdp_attr));
attribute->name = pj_strdup3(_pool, "crypto");
int len = pj_ansi_snprintf(tempbuf, sizeof(tempbuf),
"%.*s %.*s %.*s",
(int)crypto_suite.size(), crypto_suite.c_str(),
(int)application.size(), application.c_str(),
(int)key.size(), key.c_str());
attribute->value.slen = len;
attribute->value.ptr = (char*) pj_pool_alloc (_pool, attribute->value.slen+1);
pj_memcpy (attribute->value.ptr, tempbuf, attribute->value.slen+1);
if(pjmedia_sdp_media_add_attr(media, attribute) != PJ_SUCCESS) {
throw sdpException();
}
}
void Sdp::sdp_add_zrtp_attribute (pjmedia_sdp_media* media, std::string hash)
{
pjmedia_sdp_attr *attribute;

8
sflphone-common/src/sip/sdp.h
View File

@ -336,6 +336,14 @@ class Sdp {
void get_remote_sdp_media_from_offer (const pjmedia_sdp_session* r_sdp, pjmedia_sdp_media** r_media);
/*
* Adds a srtp attribute to the given media section.
*
* @param media The media to add the srtp attribute to
*/
void sdp_add_srtp_attribute(pjmedia_sdp_media* media);
/*
* Adds a zrtp-hash attribute to
* the given media section. The hello hash is