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Android: nl80211: Work around limited genl_ctrl_resolve()

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Android ICS system/core/libnl_2 has very limited genl_ctrl_resolve()
implementation that cannot handle names other than nlctrl. Work
around that by implementing more complete genl_ctrl_resolve()
functionality within driver_nl80211.c for Android builds.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Jouni Malinen 2011-11-30 13:41:55 +02:00 committed by Jouni Malinen
parent 653c4893be
commit b088cf82c9
1 changed files with 36 additions and 0 deletions
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36
src/drivers/driver_nl80211.c
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@ -2572,6 +2572,42 @@ static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv)
}
#ifdef ANDROID
static int android_genl_ctrl_resolve(struct nl_handle *handle,
const char *name)
{
/*
* Android ICS has very minimal genl_ctrl_resolve() implementation, so
* need to work around that.
*/
struct nl_cache *cache = NULL;
struct genl_family *nl80211 = NULL;
int id = -1;
if (genl_ctrl_alloc_cache(handle, &cache) < 0) {
wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
"netlink cache");
goto fail;
}
nl80211 = genl_ctrl_search_by_name(cache, name);
if (nl80211 == NULL)
goto fail;
id = genl_family_get_id(nl80211);
fail:
if (nl80211)
genl_family_put(nl80211);
if (cache)
nl_cache_free(cache);
return id;
}
#define genl_ctrl_resolve android_genl_ctrl_resolve
#endif /* ANDROID */
static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global)
{
int ret;