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Allow IBSS/AP mode networks to be created in ap_scan=1 mode

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If no BSSes/IBSSes matching the enabled networks are found in the scan
results, IBSS/AP mode network (if configured) can be created in
ap_scan=1 mode instead of requiring ap_scan=2 mode to be used whenever
using IBSS or AP mode.
This commit is contained in:
Jouni Malinen 2009-09-29 17:11:36 +03:00 committed by Jouni Malinen
parent 09b9df4e4a
commit b55aaa5fdf
2 changed files with 35 additions and 4 deletions
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25
wpa_supplicant/events.c
View File

@ -697,6 +697,26 @@ static void wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
}
static struct wpa_ssid *
wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
{
int prio;
struct wpa_ssid *ssid;
for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext)
{
if (ssid->disabled)
continue;
if (ssid->mode == IEEE80211_MODE_IBSS ||
ssid->mode == IEEE80211_MODE_AP)
return ssid;
}
}
return NULL;
}
static void wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s)
{
struct wpa_scan_res *selected;
@ -744,6 +764,11 @@ static void wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s)
wpa_supplicant_connect(wpa_s, selected, ssid);
} else {
wpa_printf(MSG_DEBUG, "No suitable network found");
ssid = wpa_supplicant_pick_new_network(wpa_s);
if (ssid) {
wpa_printf(MSG_DEBUG, "Setup a new network");
wpa_supplicant_associate(wpa_s, NULL, ssid);
} else
wpa_supplicant_req_new_scan(wpa_s, 5);
}
}

12
wpa_supplicant/wpa_supplicant.conf
View File

@ -89,7 +89,9 @@ eapol_version=1
# allow the driver to take care of AP scanning and selection and use
# wpa_supplicant just to process EAPOL frames based on IEEE 802.11 association
# information from the driver.
# 1: wpa_supplicant initiates scanning and AP selection
# 1: wpa_supplicant initiates scanning and AP selection; if no APs matching to
# the currently enabled networks are found, a new network (IBSS or AP mode
# operation) may be initialized (if configured) (default)
# 0: driver takes care of scanning, AP selection, and IEEE 802.11 association
# parameters (e.g., WPA IE generation); this mode can also be used with
# non-WPA drivers when using IEEE 802.1X mode; do not try to associate with
@ -102,6 +104,10 @@ eapol_version=1
# the driver reports successful association; each network block should have
# explicit security policy (i.e., only one option in the lists) for
# key_mgmt, pairwise, group, proto variables
# When using IBSS or AP mode, ap_scan=2 mode can force the new network to be
# created immediately regardless of scan results. ap_scan=1 mode will first try
# to scan for existing networks and only if no matches with the enabled
# networks are found, a new IBSS or AP mode network is created.
ap_scan=1
# EAP fast re-authentication
@ -244,8 +250,8 @@ fast_reauth=1
# 1 = IBSS (ad-hoc, peer-to-peer)
# 2 = AP (access point)
# Note: IBSS can only be used with key_mgmt NONE (plaintext and static WEP)
# and key_mgmt=WPA-NONE (fixed group key TKIP/CCMP). In addition, ap_scan has
# to be set to 2 for IBSS. WPA-None requires following network block options:
# and key_mgmt=WPA-NONE (fixed group key TKIP/CCMP). WPA-None requires
# following network block options:
# proto=WPA, key_mgmt=WPA-NONE, pairwise=NONE, group=TKIP (or CCMP, but not
# both), and psk must also be set.
#