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ap: include PROBE_RESP attribute if required by driver

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Certain drivers support/require probe response offloading which
IWD did not check for or properly handle. If probe response
offloading is required the probe response frame watch will not
be added and instead the ATTR_PROBE_RESP will be included with
START_AP.

The head/tail builders were reused but slightly modified to check
if the probe request frame is NULL, since it will be for use with
START_AP.
This commit is contained in:
James Prestwood 2022-09-28 12:48:52 -07:00 committed by Denis Kenzior
parent 06ec89d6b8
commit bead4745ac
1 changed files with 22 additions and 3 deletions
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21
src/ap.c
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@ -699,7 +699,7 @@ static size_t ap_write_wsc_ie(struct ap_state *ap,
size_t len = 0;
/* WSC IE */
if (type == MPDU_MANAGEMENT_SUBTYPE_PROBE_RESPONSE) {
if (type == MPDU_MANAGEMENT_SUBTYPE_PROBE_RESPONSE && client_frame) {
const uint8_t *from = client_frame->address_2;
struct wsc_probe_response wsc_pr = {};
const struct mmpdu_probe_request *req =
@ -2416,6 +2416,8 @@ static struct l_genl_msg *ap_build_cmd_start_ap(struct ap_state *ap)
0xff, 0xff, 0xff, 0xff, 0xff, 0xff
};
static const uint8_t zero_addr[6] = { 0 };
for (i = 0, nl_ciphers_cnt = 0; i < 8; i++)
if (ap->ciphers & (1 << i))
nl_ciphers[nl_ciphers_cnt++] =
@ -2458,6 +2460,21 @@ static struct l_genl_msg *ap_build_cmd_start_ap(struct ap_state *ap)
l_genl_msg_append_attr(cmd, NL80211_ATTR_WIPHY_FREQ, 4, &ch_freq);
l_genl_msg_append_attr(cmd, NL80211_ATTR_CHANNEL_WIDTH, 4, &ch_width);
if (wiphy_supports_probe_resp_offload(wiphy)) {
uint8_t probe_resp[head_len + tail_len];
uint8_t *ptr = probe_resp;
ptr += ap_build_beacon_pr_head(ap,
MPDU_MANAGEMENT_SUBTYPE_PROBE_RESPONSE,
zero_addr, ptr, sizeof(probe_resp));
ptr += ap_build_beacon_pr_tail(ap,
MPDU_MANAGEMENT_SUBTYPE_PROBE_RESPONSE,
NULL, 0, ptr);
l_genl_msg_append_attr(cmd, NL80211_ATTR_PROBE_RESP,
ptr - probe_resp, probe_resp);
}
if (wiphy_has_ext_feature(wiphy,
NL80211_EXT_FEATURE_CONTROL_PORT_OVER_NL80211)) {
l_genl_msg_append_attr(cmd, NL80211_ATTR_SOCKET_OWNER, 0, NULL);
@ -3321,10 +3338,12 @@ struct ap_state *ap_start(struct netdev *netdev, struct l_settings *config,
NULL, 0, ap_reassoc_req_cb, ap, NULL))
goto error;
if (!wiphy_supports_probe_resp_offload(wiphy)) {
if (!frame_watch_add(wdev_id, 0, 0x0000 |
(MPDU_MANAGEMENT_SUBTYPE_PROBE_REQUEST << 4),
NULL, 0, ap_probe_req_cb, ap, NULL))
goto error;
}
if (!frame_watch_add(wdev_id, 0, 0x0000 |
(MPDU_MANAGEMENT_SUBTYPE_DISASSOCIATION << 4),