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res_pjsip: Add mediasec capabilities.

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This patch adds support for mediasec SIP headers and SDP attributes.
These are defined in RFC 3329, 3GPP TS 24.229 and
draft-dawes-sipcore-mediasec-parameter. The new features are
implemented so that a backbone for RFC 3329 is present to streamline
future work on RFC 3329.

With this patch, Asterisk can communicate with Deutsche Telekom trunks
which require these fields.

ASTERISK-30032

Change-Id: Ia7f5b5ba42db18074fdd5428c4e1838728586be2
This commit is contained in:
Maximilian Fridrich
2022-07-26 14:01:04 +02:00
parent 7f80830ced
commit 0d2e140123
12 changed files with 942 additions and 4 deletions
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27
res/res_pjsip/pjsip_configuration.c
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@@ -256,6 +256,31 @@ static int timers_to_str(const void *obj, const intptr_t *args, char **buf)
return 0;
}
static int security_mechanism_handler(const struct aco_option *opt, struct ast_variable *var, void *obj)
{
struct ast_sip_endpoint *endpoint = obj;
return ast_sip_security_mechanism_vector_init(&endpoint->security_mechanisms, var->value);
}
int ast_sip_set_security_negotiation(enum ast_sip_security_negotiation *security_negotiation, const char *val) {
if (!strcasecmp("no", val)) {
*security_negotiation = AST_SIP_SECURITY_NEG_NONE;
} else if (!strcasecmp("mediasec", val)) {
*security_negotiation = AST_SIP_SECURITY_NEG_MEDIASEC;
} else {
return -1;
}
return 0;
}
static int security_negotiation_handler(const struct aco_option *opt, struct ast_variable *var, void *obj)
{
struct ast_sip_endpoint *endpoint = obj;
return ast_sip_set_security_negotiation(&endpoint->security_negotiation, var->value);
}
void ast_sip_auth_vector_destroy(struct ast_sip_auth_vector *auths)
{
int i;
@@ -2236,6 +2261,8 @@ int ast_res_pjsip_initialize_configuration(void)
ast_sorcery_object_field_register(sip_sorcery, "endpoint", "allow_unauthenticated_options", "no", OPT_BOOL_T, 1, FLDSET(struct ast_sip_endpoint, allow_unauthenticated_options));
ast_sorcery_object_field_register(sip_sorcery, "endpoint", "geoloc_incoming_call_profile", "", OPT_STRINGFIELD_T, 0, STRFLDSET(struct ast_sip_endpoint, geoloc_incoming_call_profile));
ast_sorcery_object_field_register(sip_sorcery, "endpoint", "geoloc_outgoing_call_profile", "", OPT_STRINGFIELD_T, 0, STRFLDSET(struct ast_sip_endpoint, geoloc_outgoing_call_profile));
ast_sorcery_object_field_register_custom(sip_sorcery, "endpoint", "security_mechanisms", "", security_mechanism_handler, NULL, NULL, 0, 0);
ast_sorcery_object_field_register_custom(sip_sorcery, "endpoint", "security_negotiation", "no", security_negotiation_handler, NULL, NULL, 0, 0);
if (ast_sip_initialize_sorcery_transport()) {
ast_log(LOG_ERROR, "Failed to register SIP transport support with sorcery\n");