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nl80211: Support get_sta_mlo_info for SME-in-wpa_supplicant drivers

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Query updated MLO information using NL80211_CMD_GET_INTERFACE command.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
This commit is contained in:
Andrei Otcheretianski 2022-11-30 15:09:36 +02:00 committed by Jouni Malinen
parent 06eb608d54
commit 7216f79b94
1 changed files with 54 additions and 0 deletions
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54
src/drivers/driver_nl80211.c
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@ -1025,6 +1025,51 @@ static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid)
}
static int get_mlo_info(struct nl_msg *msg, void *arg)
{
struct nlattr *tb[NL80211_ATTR_MAX + 1];
struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
struct nlattr *link_attr, *link_data[NL80211_ATTR_MAX + 1];
static struct nla_policy link_policy[NL80211_ATTR_MAX + 1] = {
[NL80211_ATTR_MLO_LINK_ID] = { .type = NLA_U8 },
[NL80211_ATTR_MAC] = { .minlen = ETH_ALEN, .maxlen = ETH_ALEN },
};
struct driver_sta_mlo_info *info = arg;
int rem;
nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
genlmsg_attrlen(gnlh, 0), NULL);
if (!tb[NL80211_ATTR_MLO_LINKS])
return NL_SKIP;
info->valid_links = 0;
nla_for_each_nested(link_attr, tb[NL80211_ATTR_MLO_LINKS], rem) {
u8 link_id;
if (nla_parse_nested(link_data, NL80211_ATTR_MAX,
link_attr, link_policy) != 0)
continue;
if (!link_data[NL80211_ATTR_MLO_LINK_ID] ||
!link_data[NL80211_ATTR_MAC])
continue;
link_id = nla_get_u8(link_data[NL80211_ATTR_MLO_LINK_ID]);
if (link_id >= MAX_NUM_MLD_LINKS)
continue;
info->valid_links |= BIT(link_id);
os_memcpy(info->links[link_id].addr,
nla_data(link_data[NL80211_ATTR_MAC]), ETH_ALEN);
if (link_data[NL80211_ATTR_WIPHY_FREQ])
info->links[link_id].freq =
nla_get_u32(link_data[NL80211_ATTR_WIPHY_FREQ]);
}
return NL_SKIP;
}
static int nl80211_get_sta_mlo_info(void *priv,
struct driver_sta_mlo_info *mlo_info)
{
@ -1034,6 +1079,15 @@ static int nl80211_get_sta_mlo_info(void *priv,
if (!drv->associated)
return -1;
if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
struct nl_msg *msg;
msg = nl80211_drv_msg(drv, 0, NL80211_CMD_GET_INTERFACE);
if (send_and_recv_msgs(drv, msg, get_mlo_info,
&drv->sta_mlo_info, NULL, NULL))
return -1;
}
os_memcpy(mlo_info, &drv->sta_mlo_info, sizeof(*mlo_info));
return 0;
}