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rtsp-stream: Add support for GCM (RFC 7714)

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Follow-up to !198
This commit is contained in:
Ulf Olsson 2019-04-10 10:32:53 +02:00 committed by Sebastian Dröge
parent a9d3bcc03e
commit d09b7c8e4f
1 changed files with 22 additions and 8 deletions
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26
gst/rtsp-server/rtsp-stream.c
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@ -5424,6 +5424,7 @@ mikey_apply_policy (GstCaps * caps, GstMIKEYMessage * msg, guint8 policy)
/* now override the defaults with what is in the Security Policy */
if (sp != NULL) {
guint len;
guint enc_alg = GST_MIKEY_ENC_AES_CM_128;
/* collect all the params and go over them */
len = gst_mikey_payload_sp_get_n_params (sp);
@ -5433,14 +5434,18 @@ mikey_apply_policy (GstCaps * caps, GstMIKEYMessage * msg, guint8 policy)
switch (param->type) {
case GST_MIKEY_SP_SRTP_ENC_ALG:
enc_alg = param->val[0];
switch (param->val[0]) {
case 0:
case GST_MIKEY_ENC_NULL:
srtp_cipher = "null";
break;
case 2:
case 1:
case GST_MIKEY_ENC_AES_CM_128:
case GST_MIKEY_ENC_AES_KW_128:
srtp_cipher = "aes-128-icm";
break;
case GST_MIKEY_ENC_AES_GCM_128:
srtp_cipher = "aes-128-gcm";
break;
default:
break;
}
@ -5448,10 +5453,20 @@ mikey_apply_policy (GstCaps * caps, GstMIKEYMessage * msg, guint8 policy)
case GST_MIKEY_SP_SRTP_ENC_KEY_LEN:
switch (param->val[0]) {
case AES_128_KEY_LEN:
if (enc_alg == GST_MIKEY_ENC_AES_CM_128 ||
enc_alg == GST_MIKEY_ENC_AES_KW_128) {
srtp_cipher = "aes-128-icm";
} else if (enc_alg == GST_MIKEY_ENC_AES_GCM_128) {
srtp_cipher = "aes-128-gcm";
}
break;
case AES_256_KEY_LEN:
if (enc_alg == GST_MIKEY_ENC_AES_CM_128 ||
enc_alg == GST_MIKEY_ENC_AES_KW_128) {
srtp_cipher = "aes-256-icm";
} else if (enc_alg == GST_MIKEY_ENC_AES_GCM_128) {
srtp_cipher = "aes-256-gcm";
}
break;
default:
break;
@ -5459,11 +5474,10 @@ mikey_apply_policy (GstCaps * caps, GstMIKEYMessage * msg, guint8 policy)
break;
case GST_MIKEY_SP_SRTP_AUTH_ALG:
switch (param->val[0]) {
case 0:
case GST_MIKEY_MAC_NULL:
srtp_auth = "null";
break;
case 2:
case 1:
case GST_MIKEY_MAC_HMAC_SHA_1_160:
srtp_auth = "hmac-sha1-80";
break;
default: