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wiphy: Install pairwise key

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This commit is contained in:
Denis Kenzior 2015-03-25 22:36:06 -05:00
parent bf5a6a3999
commit 75bacbb896
1 changed files with 101 additions and 0 deletions
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101
src/wiphy.c
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@ -783,6 +783,106 @@ static bool wiphy_match(const void *a, const void *b)
return (wiphy->id == id);
}
static void mlme_set_pairwise_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_set_pairwise_key(struct netdev *netdev)
{
uint8_t key_id = 0;
struct l_genl_msg *msg;
unsigned int id;
msg = l_genl_msg_new_sized(NL80211_CMD_SET_KEY, 512);
if (!msg)
return 0;
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);
l_genl_msg_append_attr(msg, NL80211_ATTR_KEY_DEFAULT, 0, NULL);
l_genl_msg_enter_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES);
l_genl_msg_append_attr(msg, NL80211_KEY_DEFAULT_TYPE_UNICAST, 0, NULL);
l_genl_msg_leave_nested(msg);
id = l_genl_family_send(nl80211, msg, mlme_set_pairwise_key_cb,
netdev, NULL);
if (!id)
l_genl_msg_unref(msg);
return id;
}
static void mlme_new_pairwise_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_pairwise_key(struct netdev *netdev,
uint32_t cipher,
const uint8_t *aa,
const uint8_t *tk,
size_t tk_len)
{
uint8_t key_id = 0;
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, tk_len, tk);
l_genl_msg_append_attr(msg, NL80211_ATTR_KEY_CIPHER, 4, &cipher);
l_genl_msg_append_attr(msg, NL80211_ATTR_MAC, ETH_ALEN, aa);
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_pairwise_key_cb,
netdev, NULL);
if (!id)
l_genl_msg_unref(msg);
return id;
}
static void wiphy_set_tk(uint32_t ifindex, const uint8_t *aa,
const uint8_t *tk, 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.pairwise_ciphers) {
case IE_RSN_CIPHER_SUITE_CCMP:
cipher = CRYPTO_CIPHER_CCMP;
break;
default:
l_error("Unexpected cipher suite: %d", info.pairwise_ciphers);
/* TODO: De-authenticate */
return;
}
/*
* TODO: Save pending command ids so the commands can be canceled
* in case we de-authenticate
*/
mlme_new_pairwise_key(netdev, cipher,
tk, crypto_cipher_key_len(cipher));
mlme_set_pairwise_key(netdev);
}
static void mlme_associate_event(struct l_genl_msg *msg, struct netdev *netdev)
{
struct l_dbus_message *reply;
@ -1867,6 +1967,7 @@ bool wiphy_init(void)
NULL, NULL);
eapol_init();
__eapol_set_install_tk_func(wiphy_set_tk);
return true;