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nl80211: Add support for driver-based PMKSA cache

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Implement PMKSA cache operations add, remove, and flush using nl80211
commands NL80211_CMD_{SET,DEL,FLUSH}_PMKSA to support PMKSA caching
with drivers that select the AP and generate the RSN IE internally.
This commit is contained in:
Jouni Malinen 2011-06-20 10:17:33 +03:00 committed by Jouni Malinen
parent 692cb2266f
commit a6efc65ddb
1 changed files with 52 additions and 0 deletions
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52
src/drivers/driver_nl80211.c
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@ -6555,6 +6555,55 @@ 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)
{
struct nl_msg *msg;
msg = nlmsg_alloc();
if (!msg)
return -ENOMEM;
genlmsg_put(msg, 0, 0, genl_family_get_id(bss->drv->nl80211), 0, 0,
cmd, 0);
NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
if (pmkid)
NLA_PUT(msg, NL80211_ATTR_PMKID, 16, pmkid);
if (bssid)
NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
return send_and_recv_msgs(bss->drv, msg, NULL, NULL);
nla_put_failure:
return -ENOBUFS;
}
static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid)
{
struct i802_bss *bss = priv;
wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid));
return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid);
}
static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid)
{
struct i802_bss *bss = priv;
wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR,
MAC2STR(bssid));
return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid);
}
static int nl80211_flush_pmkid(void *priv)
{
struct i802_bss *bss = priv;
wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs");
return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL);
}
const struct wpa_driver_ops wpa_driver_nl80211_ops = {
.name = "nl80211",
.desc = "Linux nl80211/cfg80211",
@ -6624,4 +6673,7 @@ const struct wpa_driver_ops wpa_driver_nl80211_ops = {
.set_intra_bss = nl80211_set_intra_bss,
.set_param = nl80211_set_param,
.get_radio_name = nl80211_get_radio_name,
.add_pmkid = nl80211_add_pmkid,
.remove_pmkid = nl80211_remove_pmkid,
.flush_pmkid = nl80211_flush_pmkid,
};