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nl80211: Add support for FILS Cache Identifier in add/remove_pmkid()

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This is needed for configuring PMKSA cache entries to the driver with
the FILS Cache Identifier and SSID.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Vidyullatha Kanchanapally 2017-03-30 19:27:15 +05:30 committed by Jouni Malinen
parent 6fbb54140b
commit 061a3d3d53
2 changed files with 53 additions and 15 deletions
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12
src/drivers/driver.h
View file

@ -1964,7 +1964,12 @@ struct wpa_bss_candidate_info {
struct wpa_pmkid_params {
const u8 *bssid;
const u8 *ssid;
size_t ssid_len;
const u8 *fils_cache_id;
const u8 *pmkid;
const u8 *pmk;
size_t pmk_len;
};
/**
@ -2153,7 +2158,9 @@ struct wpa_driver_ops {
* Returns: 0 on success, -1 on failure
*
* This function is called when a new PMK is received, as a result of
* either normal authentication or RSN pre-authentication.
* either normal authentication or RSN pre-authentication. The PMKSA
* parameters are either a set of bssid, pmkid, and pmk; or a set of
* ssid, fils_cache_id, pmkid, and pmk.
*
* If the driver generates RSN IE, i.e., it does not use wpa_ie in
* associate(), add_pmkid() can be used to add new PMKSA cache entries
@ -2171,7 +2178,8 @@ struct wpa_driver_ops {
* Returns: 0 on success, -1 on failure
*
* This function is called when the supplicant drops a PMKSA cache
* entry for any reason.
* entry for any reason. The PMKSA parameters are either a set of
* bssid and pmkid; or a set of ssid, fils_cache_id, and pmkid.
*
* If the driver generates RSN IE, i.e., it does not use wpa_ie in
* associate(), remove_pmkid() can be used to synchronize PMKSA caches

56
src/drivers/driver_nl80211.c
View file

@ -7460,14 +7460,23 @@ static const char * nl80211_get_radio_name(void *priv)
}
static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid,
const u8 *pmkid)
static int nl80211_pmkid(struct i802_bss *bss, int cmd,
struct wpa_pmkid_params *params)
{
struct nl_msg *msg;
if (!(msg = nl80211_bss_msg(bss, 0, cmd)) ||
(pmkid && nla_put(msg, NL80211_ATTR_PMKID, 16, pmkid)) ||
(bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))) {
(params->pmkid &&
nla_put(msg, NL80211_ATTR_PMKID, 16, params->pmkid)) ||
(params->bssid &&
nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid)) ||
(params->ssid_len &&
nla_put(msg, NL80211_ATTR_SSID, params->ssid_len, params->ssid)) ||
(params->fils_cache_id &&
nla_put(msg, NL80211_ATTR_FILS_CACHE_ID, 2,
params->fils_cache_id)) ||
(params->pmk_len &&
nla_put(msg, NL80211_ATTR_PMK, params->pmk_len, params->pmk))) {
nlmsg_free(msg);
return -ENOBUFS;
}
@ -7479,28 +7488,49 @@ static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid,
static int nl80211_add_pmkid(void *priv, struct wpa_pmkid_params *params)
{
struct i802_bss *bss = priv;
wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR,
MAC2STR(params->bssid));
return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, params->bssid,
params->pmkid);
if (params->bssid)
wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR,
MAC2STR(params->bssid));
else if (params->fils_cache_id && params->ssid_len) {
wpa_printf(MSG_DEBUG,
"nl80211: Add PMKSA for cache id %02x%02x SSID %s",
params->fils_cache_id[0], params->fils_cache_id[1],
wpa_ssid_txt(params->ssid, params->ssid_len));
}
return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, params);
}
static int nl80211_remove_pmkid(void *priv, struct wpa_pmkid_params *params)
{
struct i802_bss *bss = priv;
wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR,
MAC2STR(params->bssid));
return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, params->bssid,
params->pmkid);
if (params->bssid)
wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR,
MAC2STR(params->bssid));
else if (params->fils_cache_id && params->ssid_len) {
wpa_printf(MSG_DEBUG,
"nl80211: Delete PMKSA for cache id %02x%02x SSID %s",
params->fils_cache_id[0], params->fils_cache_id[1],
wpa_ssid_txt(params->ssid, params->ssid_len));
}
return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, params);
}
static int nl80211_flush_pmkid(void *priv)
{
struct i802_bss *bss = priv;
struct nl_msg *msg;
wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs");
return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL);
msg = nl80211_bss_msg(bss, 0, NL80211_CMD_FLUSH_PMKSA);
if (!msg)
return -ENOBUFS;
return send_and_recv_msgs(bss->drv, msg, NULL, NULL);
}