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scan: make scan_freq_set const in scan_passive

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The scan_passive API wasn't using a const struct scan_freq_set as it
should be since it's not modifying the contents. Changing this to
const did require some additional changes like making the scan_parameters
'freqs' member const as well.

After changing scan_parameters, p2p needed updating since it was using
scan_parameters.freqs directly. This was changed to using a separate
scan_freq_set pointer, then setting to scan_parameters.freqs when needed.
This commit is contained in:
James Prestwood 2022-07-26 10:09:15 -07:00 committed by Denis Kenzior
parent 7d6a38de93
commit b52ed27b72
3 changed files with 17 additions and 12 deletions
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21
src/p2p.c
View File

@ -1977,6 +1977,7 @@ static bool p2p_provision_scan_notify(int err, struct l_queue *bss_list,
static void p2p_provision_scan_start(struct p2p_device *dev)
{
struct scan_parameters params = {};
struct scan_freq_set *freqs = NULL;
uint8_t buf[256];
params.flush = true;
@ -2005,16 +2006,17 @@ static void p2p_provision_scan_start(struct p2p_device *dev)
* contain all of the 2.4 and 5G channels.
*/
if (dev->conn_go_scan_retry < 12) {
params.freqs = scan_freq_set_new();
scan_freq_set_add(params.freqs, dev->conn_go_oper_freq);
freqs = scan_freq_set_new();
scan_freq_set_add(freqs, dev->conn_go_oper_freq);
params.freqs = freqs;
}
dev->scan_id = scan_active_full(dev->wdev_id, &params, NULL,
p2p_provision_scan_notify, dev,
p2p_scan_destroy);
if (params.freqs)
scan_freq_set_free(params.freqs);
if (freqs)
scan_freq_set_free(freqs);
}
static void p2p_start_client_provision(struct p2p_device *dev)
@ -3777,6 +3779,7 @@ schedule:
static bool p2p_device_scan_start(struct p2p_device *dev)
{
struct scan_parameters params = {};
struct scan_freq_set *freqs;
uint8_t buf[256];
unsigned int i;
@ -3812,13 +3815,13 @@ static bool p2p_device_scan_start(struct p2p_device *dev)
* Request frames intended for both P2P Devices and non-P2P Devices."
*/
params.no_cck_rates = true;
params.freqs = scan_freq_set_new();
freqs = scan_freq_set_new();
for (i = 0; i < L_ARRAY_SIZE(channels_social); i++) {
int chan = channels_social[i];
uint32_t freq = band_channel_to_freq(chan, BAND_FREQ_2_4_GHZ);
scan_freq_set_add(params.freqs, freq);
scan_freq_set_add(freqs, freq);
}
/*
@ -3845,12 +3848,14 @@ static bool p2p_device_scan_start(struct p2p_device *dev)
dev->chans_per_scan = CHANS_PER_SCAN;
}
scan_freq_set_add(params.freqs, freq);
scan_freq_set_add(freqs, freq);
}
params.freqs = freqs;
dev->scan_id = scan_active_full(dev->wdev_id, &params, NULL,
p2p_scan_notify, dev, p2p_scan_destroy);
scan_freq_set_free(params.freqs);
scan_freq_set_free(freqs);
return dev->scan_id != 0;
}

4
src/scan.c
View File

@ -279,7 +279,7 @@ static void scan_freq_append(uint32_t freq, void *user_data)
}
static void scan_build_attr_scan_frequencies(struct l_genl_msg *msg,
struct scan_freq_set *freqs)
const struct scan_freq_set *freqs)
{
struct scan_freq_append_data append_data = { msg, 0 };
@ -654,7 +654,7 @@ static uint32_t scan_common(uint64_t wdev_id, bool passive,
priority, &work_ops);
}
uint32_t scan_passive(uint64_t wdev_id, struct scan_freq_set *freqs,
uint32_t scan_passive(uint64_t wdev_id, const struct scan_freq_set *freqs,
scan_trigger_func_t trigger, scan_notify_func_t notify,
void *userdata, scan_destroy_func_t destroy)
{

4
src/scan.h
View File

@ -92,7 +92,7 @@ struct scan_bss {
struct scan_parameters {
const uint8_t *extra_ie;
size_t extra_ie_size;
struct scan_freq_set *freqs;
const struct scan_freq_set *freqs;
uint16_t duration;
bool flush : 1;
bool randomize_mac_addr_hint : 1;
@ -129,7 +129,7 @@ struct l_genl_msg *scan_build_trigger_scan_bss(uint32_t ifindex,
const uint8_t *ssid,
uint32_t ssid_len);
uint32_t scan_passive(uint64_t wdev_id, struct scan_freq_set *freqs,
uint32_t scan_passive(uint64_t wdev_id, const struct scan_freq_set *freqs,
scan_trigger_func_t trigger, scan_notify_func_t notify,
void *userdata, scan_destroy_func_t destroy);
uint32_t scan_passive_full(uint64_t wdev_id,