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P2P: Save group common frequencies

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Once a P2P GO interface is configured, save the group common
frequencies, as this can be useful later for channel selection
considerations during channel switch, etc.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
This commit is contained in:
Ilan Peer 2014-07-07 14:20:59 +03:00 committed by Jouni Malinen
parent f64d3f0e15
commit 20beb96ff9
2 changed files with 49 additions and 0 deletions
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45
wpa_supplicant/p2p_supplicant.c
View file

@ -610,6 +610,10 @@ static int wpas_p2p_group_delete(struct wpa_supplicant *wpa_s,
os_free(wpa_s->go_params);
wpa_s->go_params = NULL;
os_free(wpa_s->p2p_group_common_freqs);
wpa_s->p2p_group_common_freqs = NULL;
wpa_s->p2p_group_common_freqs_num = 0;
wpa_s->waiting_presence_resp = 0;
wpa_printf(MSG_DEBUG, "P2P: Remove temporary group network");
@ -1298,6 +1302,40 @@ static void wpas_p2p_add_psk_list(struct wpa_supplicant *wpa_s,
}
static void p2p_go_dump_common_freqs(struct wpa_supplicant *wpa_s)
{
unsigned int i;
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Common group frequencies (len=%u):",
wpa_s->p2p_group_common_freqs_num);
for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++)
wpa_dbg(wpa_s, MSG_DEBUG, "freq[%u]: %d",
i, wpa_s->p2p_group_common_freqs[i]);
}
static void p2p_go_save_group_common_freqs(struct wpa_supplicant *wpa_s,
struct p2p_go_neg_results *params)
{
unsigned int i, len = int_array_len(wpa_s->go_params->freq_list);
wpa_s->p2p_group_common_freqs_num = 0;
os_free(wpa_s->p2p_group_common_freqs);
wpa_s->p2p_group_common_freqs = os_calloc(len, sizeof(int));
if (!wpa_s->p2p_group_common_freqs)
return;
for (i = 0; i < len; i++) {
if (!wpa_s->go_params->freq_list[i])
break;
wpa_s->p2p_group_common_freqs[i] =
wpa_s->go_params->freq_list[i];
}
wpa_s->p2p_group_common_freqs_num = i;
}
static void p2p_go_configured(void *ctx, void *data)
{
struct wpa_supplicant *wpa_s = ctx;
@ -1305,6 +1343,9 @@ static void p2p_go_configured(void *ctx, void *data)
struct wpa_ssid *ssid;
int network_id = -1;
p2p_go_save_group_common_freqs(wpa_s, params);
p2p_go_dump_common_freqs(wpa_s);
ssid = wpa_s->current_ssid;
if (ssid && ssid->mode == WPAS_MODE_P2P_GO) {
wpa_printf(MSG_DEBUG, "P2P: Group setup without provisioning");
@ -4153,6 +4194,10 @@ void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
wpabuf_free(wpa_s->p2p_oob_dev_pw);
wpa_s->p2p_oob_dev_pw = NULL;
os_free(wpa_s->p2p_group_common_freqs);
wpa_s->p2p_group_common_freqs = NULL;
wpa_s->p2p_group_common_freqs_num = 0;
/* TODO: remove group interface from the driver if this wpa_s instance
* is on top of a P2P group interface */
}

4
wpa_supplicant/wpa_supplicant_i.h
View file

@ -779,6 +779,10 @@ struct wpa_supplicant {
* formation */
u8 p2p_peer_oob_pubkey_hash[WPS_OOB_PUBKEY_HASH_LEN];
u8 p2p_ip_addr_info[3 * 4];
/* group common frequencies */
int *p2p_group_common_freqs;
unsigned int p2p_group_common_freqs_num;
#endif /* CONFIG_P2P */
struct wpa_ssid *bgscan_ssid;