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simauth: add register/unregister API's

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Forcing a plugin to create and register simauth at once is sometimes
inconvenient. This patch separates the creation and registration
into two API's, and also adds several others to add the required simauth
data incrementally (identity, driver data, sim/aka support). This also
allows for the driver to unregister the auth provider without freeing
up the simauth object itself e.g. if the driver temporarily becomes
unavailable, but will come back sometime in the future.

The simauth watch API's were also renamed. Watchers will now get a
callback when the provider has been unregistered, so they have been
renamed to sim_auth_unregistered_watch_[add|remove].
This commit is contained in:
James Prestwood 2017-12-11 15:55:46 -08:00 committed by Denis Kenzior
parent dd867a1e13
commit 36804b1b5c
2 changed files with 68 additions and 42 deletions
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84
src/simauth.c
View File

@ -37,30 +37,58 @@ struct iwd_sim_auth {
bool sim_supported : 1;
char *nai;
int pending;
struct watchlist destory_watches;
struct watchlist auth_watchers;
};
struct iwd_sim_auth *iwd_sim_auth_create(bool sim_supported, bool aka_supported,
char *nai, const struct iwd_sim_auth_driver *driver,
void *driver_data)
struct iwd_sim_auth *iwd_sim_auth_create(
const struct iwd_sim_auth_driver *driver)
{
struct iwd_sim_auth *auth = l_new(struct iwd_sim_auth, 1);
if (!auth)
return NULL;
auth->aka_supported = aka_supported;
auth->sim_supported = sim_supported;
auth->nai = l_strdup(nai);
auth->driver = driver;
auth->driver_data = driver_data;
watchlist_init(&auth->destory_watches, NULL);
l_queue_push_head(auth_providers, auth);
watchlist_init(&auth->auth_watchers, NULL);
return auth;
}
void iwd_sim_auth_set_nai(struct iwd_sim_auth *auth, const char *nai)
{
auth->nai = l_strdup(nai);
}
void iwd_sim_auth_set_capabilities(struct iwd_sim_auth *auth,
bool sim_supported, bool aka_supported)
{
auth->sim_supported = sim_supported;
auth->aka_supported = aka_supported;
}
void iwd_sim_auth_set_data(struct iwd_sim_auth *auth, void *driver_data)
{
auth->driver_data = driver_data;
}
bool iwd_sim_auth_register(struct iwd_sim_auth *auth)
{
return l_queue_push_head(auth_providers, auth);
}
void iwd_sim_auth_unregister(struct iwd_sim_auth *auth)
{
if (auth->driver->cancel_request)
auth->driver->cancel_request(auth, auth->pending);
WATCHLIST_NOTIFY_NO_ARGS(&auth->auth_watchers,
sim_auth_unregistered_cb_t);
l_free(auth->nai);
auth->aka_supported = false;
auth->sim_supported = false;
l_queue_remove(auth_providers, auth);
}
void *iwd_sim_auth_get_data(struct iwd_sim_auth *auth)
{
return auth->driver_data;
@ -70,32 +98,20 @@ static void destroy_provider(void *data)
{
struct iwd_sim_auth *auth = data;
if (auth->driver->cancel_request)
auth->driver->cancel_request(auth, auth->pending);
WATCHLIST_NOTIFY_NO_ARGS(&auth->destory_watches,
sim_auth_destroyed_cb_t);
if (auth->driver->remove)
auth->driver->remove(auth);
watchlist_destroy(&auth->destory_watches);
watchlist_destroy(&auth->auth_watchers);
l_free(auth->nai);
l_free(auth);
}
int iwd_sim_auth_remove(struct iwd_sim_auth *auth)
void iwd_sim_auth_remove(struct iwd_sim_auth *auth)
{
bool r;
r = l_queue_remove(auth_providers, auth);
if (!r)
return -ENOENT;
iwd_sim_auth_unregister(auth);
destroy_provider(auth);
return 0;
}
const char *iwd_sim_auth_get_nai(struct iwd_sim_auth *auth)
@ -124,16 +140,16 @@ struct iwd_sim_auth *iwd_sim_auth_find(bool sim, bool aka)
return NULL;
}
unsigned int sim_auth_destroyed_watch_add(struct iwd_sim_auth *auth,
sim_auth_destroyed_cb_t cb, void *data)
unsigned int sim_auth_unregistered_watch_add(struct iwd_sim_auth *auth,
sim_auth_unregistered_cb_t cb, void *data)
{
return watchlist_add(&auth->destory_watches, cb, data, NULL);
return watchlist_add(&auth->auth_watchers, cb, data, NULL);
}
void sim_auth_destroyed_watch_remove(struct iwd_sim_auth *auth,
void sim_auth_unregistered_watch_remove(struct iwd_sim_auth *auth,
unsigned int id)
{
watchlist_remove(&auth->destory_watches, id);
watchlist_remove(&auth->auth_watchers, id);
}
bool sim_auth_check_milenage(struct iwd_sim_auth *auth,

26
src/simauth.h
View File

@ -34,7 +34,7 @@
struct iwd_sim_auth;
typedef void (*sim_auth_destroyed_cb_t)(void *data);
typedef void (*sim_auth_unregistered_cb_t)(void *data);
/*
* Callback containing Milenage keys.
@ -83,20 +83,30 @@ struct iwd_sim_auth_driver {
* the list of available providers. It is expected that the auth provider
* should be immediately available for auth requests.
*/
struct iwd_sim_auth *iwd_sim_auth_create(bool sim_supported,
bool aka_supported, char *nai,
const struct iwd_sim_auth_driver *driver, void *driver_data);
struct iwd_sim_auth *iwd_sim_auth_create(
const struct iwd_sim_auth_driver *driver);
void iwd_sim_auth_set_nai(struct iwd_sim_auth *auth, const char *nai);
void iwd_sim_auth_set_capabilities(struct iwd_sim_auth *auth,
bool sim_supported, bool aka_supported);
void iwd_sim_auth_set_data(struct iwd_sim_auth *auth, void *driver_data);
bool iwd_sim_auth_register(struct iwd_sim_auth *auth);
void iwd_sim_auth_unregister(struct iwd_sim_auth *auth);
void *iwd_sim_auth_get_data(struct iwd_sim_auth *auth);
int iwd_sim_auth_remove(struct iwd_sim_auth *auth);
void iwd_sim_auth_remove(struct iwd_sim_auth *auth);
const char *iwd_sim_auth_get_nai(struct iwd_sim_auth *auth);
unsigned int sim_auth_destroyed_watch_add(struct iwd_sim_auth *auth,
sim_auth_destroyed_cb_t cb, void *data);
unsigned int sim_auth_unregistered_watch_add(struct iwd_sim_auth *auth,
sim_auth_unregistered_cb_t cb, void *data);
void sim_auth_destroyed_watch_remove(struct iwd_sim_auth *auth,
void sim_auth_unregistered_watch_remove(struct iwd_sim_auth *auth,
unsigned int id);
/*
* Find an appropriate driver for running SIM/AKA algorithms