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wiphy: Install group key

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This commit is contained in:
Denis Kenzior 2015-03-25 23:27:37 -05:00
parent 6ec364cb86
commit 0412360d77
1 changed files with 78 additions and 1 deletions
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79
src/wiphy.c
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@ -878,11 +878,87 @@ static void wiphy_set_tk(uint32_t ifindex, const uint8_t *aa,
* TODO: Save pending command ids so the commands can be canceled
* in case we de-authenticate
*/
mlme_new_pairwise_key(netdev, cipher,
mlme_new_pairwise_key(netdev, cipher, aa,
tk, crypto_cipher_key_len(cipher));
mlme_set_pairwise_key(netdev);
}
static void mlme_new_group_key_cb(struct l_genl_msg *msg, void *data)
{
/* TODO: De-authenticate */
if (l_genl_msg_get_error(msg) < 0)
return;
}
static unsigned int mlme_new_group_key(struct netdev *netdev,
uint32_t cipher, uint8_t key_id,
const uint8_t *gtk, size_t gtk_len,
const uint8_t *rsc, size_t rsc_len)
{
struct l_genl_msg *msg;
unsigned int id;
msg = l_genl_msg_new_sized(NL80211_CMD_NEW_KEY, 512);
if (!msg)
return 0;
l_genl_msg_append_attr(msg, NL80211_ATTR_KEY_DATA, gtk_len, gtk);
l_genl_msg_append_attr(msg, NL80211_ATTR_KEY_CIPHER, 4, &cipher);
l_genl_msg_append_attr(msg, NL80211_ATTR_KEY_SEQ, rsc_len, rsc);
l_genl_msg_enter_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES);
l_genl_msg_append_attr(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST,
0, NULL);
l_genl_msg_leave_nested(msg);
l_genl_msg_append_attr(msg, NL80211_ATTR_KEY_IDX, 1, &key_id);
l_genl_msg_append_attr(msg, NL80211_ATTR_IFINDEX, 4, &netdev->index);
id = l_genl_family_send(nl80211, msg, mlme_new_group_key_cb,
netdev, NULL);
if (!id)
l_genl_msg_unref(msg);
return id;
}
static void wiphy_set_gtk(uint32_t ifindex, uint8_t key_index,
const uint8_t *gtk, uint8_t gtk_len,
const uint8_t *rsc, uint8_t rsc_len,
const uint8_t *rsn, void *user_data)
{
struct netdev *netdev = user_data;
struct ie_rsn_info info;
enum crypto_cipher cipher;
l_debug("");
ie_parse_rsne_from_data(rsn, rsn[1] + 2, &info);
switch (info.group_cipher) {
case IE_RSN_CIPHER_SUITE_CCMP:
cipher = CRYPTO_CIPHER_CCMP;
break;
default:
l_error("Unexpected cipher suite: %d", info.group_cipher);
/* TODO: De-authenticate */
return;
}
if (crypto_cipher_key_len(cipher) != gtk_len) {
l_error("Unexpected key length: %d", gtk_len);
return;
}
/*
* TODO: Save pending command id so the command can be canceled
* in case we de-authenticate
*/
mlme_new_group_key(netdev, cipher, key_index,
gtk, crypto_cipher_key_len(cipher),
rsc, rsc_len);
}
static void mlme_associate_event(struct l_genl_msg *msg, struct netdev *netdev)
{
struct l_dbus_message *reply;
@ -1968,6 +2044,7 @@ bool wiphy_init(void)
eapol_init();
__eapol_set_install_tk_func(wiphy_set_tk);
__eapol_set_install_gtk_func(wiphy_set_gtk);
return true;