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P2P: Continue scanning specified channel with P2P_FIND freq argument

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This makes the "P2P_FIND freq=<MHz>" operation more robust by continuing
to include the specified frequency in the consecutive scan rounds
instead of including it only once in the first scan. In other words, the
first scan is only for the specified frequency just like the previous
behavior, but the following scans include all the social channels and
the specified frequency instead of just the previously used social
channels.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Jouni Malinen 2017-03-13 12:50:50 +02:00 committed by Jouni Malinen
parent 98b04522de
commit d3bb082a73
2 changed files with 10 additions and 3 deletions
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12
src/p2p/p2p.c
View File

@ -1010,8 +1010,10 @@ static void p2p_search(struct p2p_data *p2p)
}
p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
if (p2p->find_type == P2P_FIND_PROGRESSIVE &&
(freq = p2p_get_next_prog_freq(p2p)) > 0) {
if ((p2p->find_type == P2P_FIND_PROGRESSIVE &&
(freq = p2p_get_next_prog_freq(p2p)) > 0) ||
(p2p->find_type == P2P_FIND_START_WITH_FULL &&
(freq = p2p->find_specified_freq) > 0)) {
type = P2P_SCAN_SOCIAL_PLUS_ONE;
p2p_dbg(p2p, "Starting search (+ freq %u)", freq);
} else {
@ -1235,6 +1237,10 @@ int p2p_find(struct p2p_data *p2p, unsigned int timeout,
}
p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
p2p->find_type = type;
if (freq != 2412 && freq != 2437 && freq != 2462 && freq != 60480)
p2p->find_specified_freq = freq;
else
p2p->find_specified_freq = 0;
p2p_device_clear_reported(p2p);
os_memset(p2p->sd_query_no_ack, 0, ETH_ALEN);
p2p_set_state(p2p, P2P_SEARCH);
@ -1250,7 +1256,7 @@ int p2p_find(struct p2p_data *p2p, unsigned int timeout,
if (freq > 0) {
/*
* Start with the specified channel and then move to
* social channels only scans.
* scans for social channels and this specific channel.
*/
res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx,
P2P_SCAN_SPECIFIC, freq,

1
src/p2p/p2p_i.h
View File

@ -437,6 +437,7 @@ struct p2p_data {
int inv_persistent;
enum p2p_discovery_type find_type;
int find_specified_freq;
unsigned int last_p2p_find_timeout;
u8 last_prog_scan_class;
u8 last_prog_scan_chan;