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sip: media-pipeline: Use cryptographic parameters

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Allows setting up cryptographic parameters with
calls_sip_media_pipeline_set_crypto() and use them to set GstCaps for
GstSrtpDec and GObject properties for GstSrtpEnc
This commit is contained in:
Evangelos Ribeiro Tzaras
2022-04-25 09:47:24 +02:00
parent 4937723541
commit ea5b4f2895
5 changed files with 515 additions and 8 deletions
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78
plugins/sip/calls-srtp-utils.c
View File

@@ -691,3 +691,81 @@ calls_srtp_crypto_attribute_free (calls_srtp_crypto_attribute *attr)
g_free (attr->b64_fec_key);
g_free (attr);
}
/**
* calls_srtp_crypto_get_srtpdec_params:
* @attr: A #calls_srtp_crypto_attribute
* @srtp_cipher (out): SRTP cipher
* @srtp_auth (out): SRTP auth
* @srtcp_cipher (out): SRTCP cipher
* @srtcp_auth (out): SRTCP auth
*
* Sets the parameters suitable for #GstSrtpDec (as a #GstCaps).
*/
gboolean
calls_srtp_crypto_get_srtpdec_params (calls_srtp_crypto_attribute *attr,
const char **srtp_cipher,
const char **srtp_auth,
const char **srtcp_cipher,
const char **srtcp_auth)
{
g_return_val_if_fail (attr, FALSE);
if (attr->crypto_suite == CALLS_SRTP_SUITE_AES_128_SHA1_32) {
*srtp_cipher = attr->unencrypted_srtp ? "null" : "aes-128-icm";
*srtp_auth = attr->unauthenticated_srtp ? "null" : "hmac-sha1-32";
*srtcp_cipher = attr->unencrypted_srtcp ? "null" : "aes-128-icm";
*srtcp_auth = attr->unencrypted_srtcp ? "null" : "hmac-sha1-32";
return TRUE;
} else if (attr->crypto_suite == CALLS_SRTP_SUITE_AES_128_SHA1_80) {
*srtp_cipher = attr->unencrypted_srtp ? "null" : "aes-128-icm";
*srtp_auth = attr->unauthenticated_srtp ? "null" : "hmac-sha1-80";
*srtcp_cipher = attr->unencrypted_srtcp ? "null" : "aes-128-icm";
*srtcp_auth = attr->unencrypted_srtcp ? "null" : "hmac-sha1-80";
return TRUE;
}
return FALSE;
}
/**
* calls_srtp_crypto_get_srtpenc_params:
* @attr: A #calls_srtp_crypto_attribute
* @srtp_cipher (out): SRTP cipher
* @srtp_auth (out): SRTP auth
* @srtcp_cipher (out): SRTCP cipher
* @srtcp_auth (out): SRTCP auth
*
* Sets the parameters suitable for #GstSrtpDec (as a #GstCaps).
*/
gboolean
calls_srtp_crypto_get_srtpenc_params (calls_srtp_crypto_attribute *attr,
GstSrtpCipherType *srtp_cipher,
GstSrtpAuthType *srtp_auth,
GstSrtpCipherType *srtcp_cipher,
GstSrtpAuthType *srtcp_auth)
{
g_return_val_if_fail (attr, FALSE);
if (attr->crypto_suite == CALLS_SRTP_SUITE_AES_128_SHA1_32) {
*srtp_cipher = attr->unencrypted_srtp ? GST_SRTP_CIPHER_NULL : GST_SRTP_CIPHER_AES_128_ICM;
*srtp_auth = attr->unauthenticated_srtp ? GST_SRTP_AUTH_NULL : GST_SRTP_AUTH_HMAC_SHA1_32;
*srtcp_cipher = attr->unencrypted_srtcp ? GST_SRTP_CIPHER_NULL : GST_SRTP_CIPHER_AES_128_ICM;
*srtcp_auth = attr->unencrypted_srtcp ? GST_SRTP_AUTH_NULL : GST_SRTP_AUTH_HMAC_SHA1_32;
return TRUE;
} else if (attr->crypto_suite == CALLS_SRTP_SUITE_AES_128_SHA1_80) {
*srtp_cipher = attr->unencrypted_srtp ? GST_SRTP_CIPHER_NULL : GST_SRTP_CIPHER_AES_128_ICM;
*srtp_auth = attr->unauthenticated_srtp ? GST_SRTP_AUTH_NULL : GST_SRTP_AUTH_HMAC_SHA1_80;
*srtcp_cipher = attr->unencrypted_srtcp ? GST_SRTP_CIPHER_NULL : GST_SRTP_CIPHER_AES_128_ICM;
*srtcp_auth = attr->unencrypted_srtcp ? GST_SRTP_AUTH_NULL : GST_SRTP_AUTH_HMAC_SHA1_80;
return TRUE;
}
return FALSE;
}