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res_pjsip: Add 'dtls_fingerprint' option to configure DTLS fingerprint hash.

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During the latest update to DTLS-SRTP support the ability to configure
the hash used for fingerprints was added. This gave us two supported ones:
SHA-1 and SHA-256. The default was accordingly updated to SHA-256.
Unfortunately this configuration ability was not exposed within res_pjsip.
This change adds a dtls_fingerprint option that controls it.

#SIPit31
........

Merged revisions 424290 from http://svn.asterisk.org/svn/asterisk/branches/12


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/13@424291 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Joshua Colp
2014-10-01 16:37:46 +00:00
parent 0de2d080c2
commit a1763a89a3
3 changed files with 30 additions and 0 deletions
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15
res/res_pjsip/pjsip_configuration.c
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@@ -726,6 +726,20 @@ static int dtlssetup_to_str(const void *obj, const intptr_t *args, char **buf)
return 0;
}
static const char *ast_rtp_dtls_fingerprint_map[] = {
[AST_RTP_DTLS_HASH_SHA256] = "SHA-256",
[AST_RTP_DTLS_HASH_SHA1] = "SHA-1",
};
static int dtlsfingerprint_to_str(const void *obj, const intptr_t *args, char **buf)
{
const struct ast_sip_endpoint *endpoint = obj;
if (ARRAY_IN_BOUNDS(endpoint->media.rtp.dtls_cfg.hash, ast_rtp_dtls_fingerprint_map)) {
*buf = ast_strdup(ast_rtp_dtls_fingerprint_map[endpoint->media.rtp.dtls_cfg.hash]);
}
return 0;
}
static int t38udptl_ec_handler(const struct aco_option *opt,
struct ast_variable *var, void *obj)
{
@@ -1738,6 +1752,7 @@ int ast_res_pjsip_initialize_configuration(const struct ast_module_info *ast_mod
ast_sorcery_object_field_register_custom(sip_sorcery, "endpoint", "dtls_ca_file", "", dtls_handler, dtlscafile_to_str, NULL, 0, 0);
ast_sorcery_object_field_register_custom(sip_sorcery, "endpoint", "dtls_ca_path", "", dtls_handler, dtlscapath_to_str, NULL, 0, 0);
ast_sorcery_object_field_register_custom(sip_sorcery, "endpoint", "dtls_setup", "", dtls_handler, dtlssetup_to_str, NULL, 0, 0);
ast_sorcery_object_field_register_custom(sip_sorcery, "endpoint", "dtls_fingerprint", "", dtls_handler, dtlsfingerprint_to_str, NULL, 0, 0);
ast_sorcery_object_field_register(sip_sorcery, "endpoint", "srtp_tag_32", "no", OPT_BOOL_T, 1, FLDSET(struct ast_sip_endpoint, media.rtp.srtp_tag_32));
ast_sorcery_object_field_register_custom(sip_sorcery, "endpoint", "redirect_method", "user", redirect_handler, NULL, NULL, 0, 0);
ast_sorcery_object_field_register_custom(sip_sorcery, "endpoint", "set_var", "", set_var_handler, set_var_to_str, set_var_to_vl, 0, 0);