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Code Issues Releases Wiki Activity

Ensure all pjsip_regc_* access occurs within a pjlib thread.

Browse Source 
(closes issue ASTERISK-22054)
Reported by: Rusty Newton


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@393870 65c4cc65-6c06-0410-ace0-fbb531ad65f3
changes/78/78/1
Joshua Colp 12 years ago
parent 6670f56027
commit 6e192a0f6f
1 changed files with 52 additions and 35 deletions
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87
res/res_sip_outbound_registration.c
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@ -568,33 +568,15 @@ static int can_reuse_registration(struct sip_outbound_registration *existing, st
return 1;
}
/*! \brief Apply function which finds or allocates a state structure */
static int sip_outbound_registration_apply(const struct ast_sorcery *sorcery, void *obj)
/*! \brief Helper function that allocates a pjsip registration client and configures it */
static int sip_outbound_registration_regc_alloc(void *data)
{
RAII_VAR(struct sip_outbound_registration *, existing, ast_sorcery_retrieve_by_id(sorcery, "registration", ast_sorcery_object_get_id(obj)), ao2_cleanup);
struct sip_outbound_registration *applied = obj;
struct sip_outbound_registration *registration = data;
pj_str_t server_uri, client_uri, contact_uri;
pjsip_tpselector selector = { .type = PJSIP_TPSELECTOR_NONE, };
if (!existing) {
/* If no existing registration exists we can just start fresh easily */
applied->state = sip_outbound_registration_state_alloc();
} else {
/* If there is an existing registration things are more complicated, we can immediately reuse this state if most stuff remains unchanged */
if (can_reuse_registration(existing, applied)) {
applied->state = existing->state;
ao2_ref(applied->state, +1);
return 0;
}
applied->state = sip_outbound_registration_state_alloc();
}
if (!applied->state) {
return -1;
}
if (!ast_strlen_zero(applied->transport)) {
RAII_VAR(struct ast_sip_transport *, transport, ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "transport", applied->transport), ao2_cleanup);
if (!ast_strlen_zero(registration->transport)) {
RAII_VAR(struct ast_sip_transport *, transport, ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "transport", registration->transport), ao2_cleanup);
if (!transport || !transport->state) {
return -1;
@ -611,43 +593,69 @@ static int sip_outbound_registration_apply(const struct ast_sorcery *sorcery, vo
}
}
pjsip_regc_set_transport(applied->state->client_state->client, &selector);
pjsip_regc_set_transport(registration->state->client_state->client, &selector);
if (!ast_strlen_zero(applied->outbound_proxy)) {
if (!ast_strlen_zero(registration->outbound_proxy)) {
pjsip_route_hdr route_set, *route;
static const pj_str_t ROUTE_HNAME = { "Route", 5 };
pj_str_t tmp;
pj_list_init(&route_set);
pj_strdup2_with_null(pjsip_regc_get_pool(applied->state->client_state->client), &tmp, applied->outbound_proxy);
if (!(route = pjsip_parse_hdr(pjsip_regc_get_pool(applied->state->client_state->client), &ROUTE_HNAME, tmp.ptr, tmp.slen, NULL))) {
pj_strdup2_with_null(pjsip_regc_get_pool(registration->state->client_state->client), &tmp, registration->outbound_proxy);
if (!(route = pjsip_parse_hdr(pjsip_regc_get_pool(registration->state->client_state->client), &ROUTE_HNAME, tmp.ptr, tmp.slen, NULL))) {
return -1;
}
pj_list_push_back(&route_set, route);
pjsip_regc_set_route_set(applied->state->client_state->client, &route_set);
pjsip_regc_set_route_set(registration->state->client_state->client, &route_set);
}
pj_cstr(&server_uri, applied->server_uri);
pj_cstr(&server_uri, registration->server_uri);
if (sip_dialog_create_contact(pjsip_regc_get_pool(applied->state->client_state->client), &contact_uri, S_OR(applied->contact_user, "s"), &server_uri, &selector)) {
if (sip_dialog_create_contact(pjsip_regc_get_pool(registration->state->client_state->client), &contact_uri, S_OR(registration->contact_user, "s"), &server_uri, &selector)) {
return -1;
}
pj_cstr(&client_uri, applied->client_uri);
pj_cstr(&client_uri, registration->client_uri);
if (pjsip_regc_init(applied->state->client_state->client, &server_uri, &client_uri, &client_uri, 1, &contact_uri, applied->expiration) != PJ_SUCCESS) {
if (pjsip_regc_init(registration->state->client_state->client, &server_uri, &client_uri, &client_uri, 1, &contact_uri, registration->expiration) != PJ_SUCCESS) {
return -1;
}
return 0;
}
/*! \brief Apply function which finds or allocates a state structure */
static int sip_outbound_registration_apply(const struct ast_sorcery *sorcery, void *obj)
{
RAII_VAR(struct sip_outbound_registration *, existing, ast_sorcery_retrieve_by_id(sorcery, "registration", ast_sorcery_object_get_id(obj)), ao2_cleanup);
struct sip_outbound_registration *applied = obj;
if (!existing) {
/* If no existing registration exists we can just start fresh easily */
applied->state = sip_outbound_registration_state_alloc();
} else {
/* If there is an existing registration things are more complicated, we can immediately reuse this state if most stuff remains unchanged */
if (can_reuse_registration(existing, applied)) {
applied->state = existing->state;
ao2_ref(applied->state, +1);
return 0;
}
applied->state = sip_outbound_registration_state_alloc();
}
if (!applied->state) {
return -1;
}
return ast_sip_push_task_synchronous(NULL, sip_outbound_registration_regc_alloc, applied);
}
/*! \brief Helper function which performs a single registration */
static int sip_outbound_registration_perform(void *obj, void *arg, int flags)
static int sip_outbound_registration_perform(void *data)
{
struct sip_outbound_registration *registration = obj;
RAII_VAR(struct sip_outbound_registration *, registration, data, ao2_cleanup);
size_t i;
/* Just in case the client state is being reused for this registration, free the auth information */
@ -675,12 +683,21 @@ static int sip_outbound_registration_perform(void *obj, void *arg, int flags)
static void sip_outbound_registration_perform_all(void)
{
RAII_VAR(struct ao2_container *, registrations, ast_sorcery_retrieve_by_fields(ast_sip_get_sorcery(), "registration", AST_RETRIEVE_FLAG_MULTIPLE | AST_RETRIEVE_FLAG_ALL, NULL), ao2_cleanup);
struct ao2_iterator i;
struct sip_outbound_registration *registration;
if (!registrations) {
return;
}
ao2_callback(registrations, OBJ_NODATA, sip_outbound_registration_perform, NULL);
i = ao2_iterator_init(registrations, 0);
while ((registration = ao2_iterator_next(&i))) {
if (ast_sip_push_task(registration->state->client_state->serializer, sip_outbound_registration_perform, registration)) {
ast_log(LOG_ERROR, "Failed to perform outbound registration on '%s'\n", ast_sorcery_object_get_id(registration));
ao2_ref(registration, -1);
}
}
ao2_iterator_destroy(&i);
}
#define AUTH_INCREMENT 4

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