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nl80211: Add frequency info in start AP command

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When ACS is configured in multiple BSS case, sometimes a virtual AP
interface does not come up as the channel context information between
different BSSs of the same band does not match.

Same behavior is observed in case of multiple band/hardware under a
single wiphy, when we bring up multiple virtual interface in various
bands simultaneously and the kernel maps a random channel as it has more
than one channel context, e.g., say a 2.4 GHz channel to a 5 GHz virtual
AP interface when the start AP command is sent. This is because the
frequency information is not present in the command.

Add the frequency information into the start AP netlink command so that
the kernel maps the appropriate channel context by parsing it instead of
using a previous set channel information.

Signed-off-by: Harshitha Prem <quic_hprem@quicinc.com>
This commit is contained in:
Harshitha Prem 2023-02-22 09:29:01 +05:30 committed by Jouni Malinen
parent f710eba172
commit b3921db426
1 changed files with 5 additions and 0 deletions
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5
src/drivers/driver_nl80211.c
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@ -173,6 +173,8 @@ static int nl80211_send_frame_cmd(struct i802_bss *bss,
const u16 *csa_offs, size_t csa_offs_len); const u16 *csa_offs, size_t csa_offs_len);
static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss,
int report); int report);
static int nl80211_put_freq_params(struct nl_msg *msg,
const struct hostapd_freq_params *freq);
#define IFIDX_ANY -1 #define IFIDX_ANY -1
@ -4948,6 +4950,9 @@ static int wpa_driver_nl80211_set_ap(void *priv,
nla_nest_end(msg, spr); nla_nest_end(msg, spr);
} }
if (params->freq && nl80211_put_freq_params(msg, params->freq) < 0)
goto fail;
if (params->freq && params->freq->he_enabled) { if (params->freq && params->freq->he_enabled) {
struct nlattr *bss_color; struct nlattr *bss_color;