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P2P: Allow discoverable interval for p2p_find to be configured

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The new P2P_SET parameter disc_int can now be used to configure
discoverable interval for p2p_find operations. The format of the command
for setting the values is "P2P_SET disc_int <minDiscoverableInterval>
<maxDiscoverableInterval> <max TUs for discoverable interval>". The
first two parameters are given in units of 100 TUs (102.4 ms). The third
parameter can be used to further limit the interval into a specific TU
amount. If it is set to -1, no such additional limitation is enforced.
It should be noted that the P2P specification describes the random
Listen state interval to be in units of 100 TUs, so setting the max TU
value to anything else than -1 is not compliant with the specification
and should not be used in normal cases. The default parameters can be
set with "P2P_SET disc_int 1 3 -1".

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Jouni Malinen 2012-10-30 15:12:04 +02:00 • committed by Jouni Malinen
parent 23270cd8f5
commit 96beff11d1
5 changed files with 93 additions and 5 deletions
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24
wpa_supplicant/ctrl_iface.c
View file

@ -4223,6 +4223,30 @@ static int p2p_ctrl_set(struct wpa_supplicant *wpa_s, char *cmd)
if (os_strcmp(cmd, "disallow_freq") == 0)
return p2p_ctrl_disallow_freq(wpa_s, param);
if (os_strcmp(cmd, "disc_int") == 0) {
int min_disc_int, max_disc_int, max_disc_tu;
char *pos;
pos = param;
min_disc_int = atoi(pos);
pos = os_strchr(pos, ' ');
if (pos == NULL)
return -1;
*pos++ = '\0';
max_disc_int = atoi(pos);
pos = os_strchr(pos, ' ');
if (pos == NULL)
return -1;
*pos++ = '\0';
max_disc_tu = atoi(pos);
return p2p_set_disc_int(wpa_s->global->p2p, min_disc_int,
max_disc_int, max_disc_tu);
}
wpa_printf(MSG_DEBUG, "CTRL_IFACE: Unknown P2P_SET field value '%s'",
cmd);

2
wpa_supplicant/p2p_supplicant.c
View file

@ -2760,6 +2760,8 @@ int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
p2p.p2p_intra_bss = wpa_s->conf->p2p_intra_bss;
p2p.max_listen = wpa_s->max_remain_on_chan;
global->p2p = p2p_init(&p2p);
if (global->p2p == NULL)
return -1;