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nl80211: Dump scan results in debug log if association command fails

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This may help in debugging why cfg80211 refused the association
command since the scan results should include information about all
pending authentication and association states.
This commit is contained in:
Jouni Malinen 2010-01-24 18:11:30 -08:00
parent b85e772449
commit 8856462d61
1 changed files with 44 additions and 8 deletions
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52
src/drivers/driver_nl80211.c
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@ -1654,15 +1654,9 @@ static void wpa_scan_results_free(struct wpa_scan_results *res)
} }
/**
* wpa_driver_nl80211_get_scan_results - Fetch the latest scan results
* @priv: Pointer to private wext data from wpa_driver_nl80211_init()
* Returns: Scan results on success, -1 on failure
*/
static struct wpa_scan_results * static struct wpa_scan_results *
wpa_driver_nl80211_get_scan_results(void *priv) nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv)
{ {
struct wpa_driver_nl80211_data *drv = priv;
struct nl_msg *msg; struct nl_msg *msg;
struct wpa_scan_results *res; struct wpa_scan_results *res;
int ret; int ret;
@ -1683,7 +1677,6 @@ wpa_driver_nl80211_get_scan_results(void *priv)
if (ret == 0) { if (ret == 0) {
wpa_printf(MSG_DEBUG, "Received scan results (%lu BSSes)", wpa_printf(MSG_DEBUG, "Received scan results (%lu BSSes)",
(unsigned long) res->num); (unsigned long) res->num);
wpa_driver_nl80211_check_bss_status(drv, res);
return res; return res;
} }
wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d " wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
@ -1695,6 +1688,48 @@ nla_put_failure:
} }
/**
* wpa_driver_nl80211_get_scan_results - Fetch the latest scan results
* @priv: Pointer to private wext data from wpa_driver_nl80211_init()
* Returns: Scan results on success, -1 on failure
*/
static struct wpa_scan_results *
wpa_driver_nl80211_get_scan_results(void *priv)
{
struct wpa_driver_nl80211_data *drv = priv;
struct wpa_scan_results *res;
res = nl80211_get_scan_results(drv);
if (res)
wpa_driver_nl80211_check_bss_status(drv, res);
return res;
}
static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv)
{
struct wpa_scan_results *res;
size_t i;
res = nl80211_get_scan_results(drv);
if (res == NULL) {
wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results");
return;
}
wpa_printf(MSG_DEBUG, "nl80211: Scan result dump");
for (i = 0; i < res->num; i++) {
struct wpa_scan_res *r = res->res[i];
wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s",
(int) i, (int) res->num, MAC2STR(r->bssid),
r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "",
r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : "");
}
wpa_scan_results_free(res);
}
static int wpa_driver_nl80211_set_key(const char *ifname, void *priv, static int wpa_driver_nl80211_set_key(const char *ifname, void *priv,
enum wpa_alg alg, const u8 *addr, enum wpa_alg alg, const u8 *addr,
int key_idx, int set_tx, int key_idx, int set_tx,
@ -3572,6 +3607,7 @@ static int wpa_driver_nl80211_associate(
if (ret) { if (ret) {
wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d " wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
"(%s)", ret, strerror(-ret)); "(%s)", ret, strerror(-ret));
nl80211_dump_scan(drv);
goto nla_put_failure; goto nla_put_failure;
} }
ret = 0; ret = 0;