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P2P: Use 500 ms search delay by default during concurrent operations

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If the p2p_find command is used without the delay parameter, a 500 ms
default search delay will now be used when any interface using the same
radio is in an concurrent operation. "p2p_find delay=0" can be used to
enforce the old behavior in such a case if needed.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Jouni Malinen 2012-08-23 18:34:57 +03:00 committed by Jouni Malinen
parent 37448ede31
commit 05a77b3b46
3 changed files with 46 additions and 2 deletions
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5
wpa_supplicant/ctrl_iface.c
View File

@ -2958,7 +2958,7 @@ static int p2p_ctrl_find(struct wpa_supplicant *wpa_s, char *cmd)
enum p2p_discovery_type type = P2P_FIND_START_WITH_FULL; enum p2p_discovery_type type = P2P_FIND_START_WITH_FULL;
u8 dev_id[ETH_ALEN], *_dev_id = NULL; u8 dev_id[ETH_ALEN], *_dev_id = NULL;
char *pos; char *pos;
unsigned int search_delay = 0; unsigned int search_delay;
if (os_strstr(cmd, "type=social")) if (os_strstr(cmd, "type=social"))
type = P2P_FIND_ONLY_SOCIAL; type = P2P_FIND_ONLY_SOCIAL;
@ -2977,7 +2977,8 @@ static int p2p_ctrl_find(struct wpa_supplicant *wpa_s, char *cmd)
if (pos) { if (pos) {
pos += 6; pos += 6;
search_delay = atoi(pos); search_delay = atoi(pos);
} } else
search_delay = wpas_p2p_search_delay(wpa_s);
return wpas_p2p_find(wpa_s, timeout, type, 0, NULL, _dev_id, return wpas_p2p_find(wpa_s, timeout, type, 0, NULL, _dev_id,
search_delay); search_delay);

42
wpa_supplicant/p2p_supplicant.c
View File

@ -57,6 +57,10 @@
#define P2P_MAX_INITIAL_CONN_WAIT 10 #define P2P_MAX_INITIAL_CONN_WAIT 10
#endif /* P2P_MAX_INITIAL_CONN_WAIT */ #endif /* P2P_MAX_INITIAL_CONN_WAIT */
#ifndef P2P_CONCURRENT_SEARCH_DELAY
#define P2P_CONCURRENT_SEARCH_DELAY 500
#endif /* P2P_CONCURRENT_SEARCH_DELAY */
enum p2p_group_removal_reason { enum p2p_group_removal_reason {
P2P_GROUP_REMOVAL_UNKNOWN, P2P_GROUP_REMOVAL_UNKNOWN,
P2P_GROUP_REMOVAL_SILENT, P2P_GROUP_REMOVAL_SILENT,
@ -4982,3 +4986,41 @@ int wpas_p2p_scan_no_go_seen(struct wpa_supplicant *wpa_s)
return 1; return 1;
} }
unsigned int wpas_p2p_search_delay(struct wpa_supplicant *wpa_s)
{
const char *rn, *rn2;
struct wpa_supplicant *ifs;
if (wpa_s->wpa_state > WPA_SCANNING) {
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search delay due to "
"concurrent operation",
P2P_CONCURRENT_SEARCH_DELAY);
return P2P_CONCURRENT_SEARCH_DELAY;
}
if (!wpa_s->driver->get_radio_name)
return 0;
rn = wpa_s->driver->get_radio_name(wpa_s->drv_priv);
if (rn == NULL || rn[0] == '\0')
return 0;
for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
if (ifs == wpa_s || !ifs->driver->get_radio_name)
continue;
rn2 = ifs->driver->get_radio_name(ifs->drv_priv);
if (!rn2 || os_strcmp(rn, rn2) != 0)
continue;
if (ifs->wpa_state > WPA_SCANNING) {
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search "
"delay due to concurrent operation on "
"interface %s",
P2P_CONCURRENT_SEARCH_DELAY, ifs->ifname);
return P2P_CONCURRENT_SEARCH_DELAY;
}
}
return 0;
}

1
wpa_supplicant/p2p_supplicant.h
View File

@ -143,5 +143,6 @@ void wpas_p2p_notify_ap_sta_authorized(struct wpa_supplicant *wpa_s,
int wpas_p2p_scan_no_go_seen(struct wpa_supplicant *wpa_s); int wpas_p2p_scan_no_go_seen(struct wpa_supplicant *wpa_s);
int wpas_p2p_get_ht40_mode(struct wpa_supplicant *wpa_s, int wpas_p2p_get_ht40_mode(struct wpa_supplicant *wpa_s,
struct hostapd_hw_modes *mode, u8 channel); struct hostapd_hw_modes *mode, u8 channel);
unsigned int wpas_p2p_search_delay(struct wpa_supplicant *wpa_s);
#endif /* P2P_SUPPLICANT_H */ #endif /* P2P_SUPPLICANT_H */