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netdev: unify ft/auth_proto authenticate builders

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build_cmd_ft_authenticate and build_cmd_authenticate were virtually
identical. These have been unified into a single builder.

We were also incorrectly including ATTR_IE to every authenticate
command, which violates the spec for certain protocols, This was
removed and any auth protocols will now add any IEs that they require.
This commit is contained in:
James Prestwood 2020-05-07 14:50:58 -07:00 committed by Denis Kenzior
parent cbfaef09d6
commit c7a17e5987
1 changed files with 8 additions and 38 deletions
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46
src/netdev.c
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@ -2129,8 +2129,7 @@ static void netdev_cmd_connect_cb(struct l_genl_msg *msg, void *user_data)
}
static struct l_genl_msg *netdev_build_cmd_authenticate(struct netdev *netdev,
uint32_t auth_type,
const uint8_t *addr)
uint32_t auth_type)
{
struct handshake_state *hs = netdev->handshake;
struct l_genl_msg *msg;
@ -2139,13 +2138,11 @@ static struct l_genl_msg *netdev_build_cmd_authenticate(struct netdev *netdev,
l_genl_msg_append_attr(msg, NL80211_ATTR_IFINDEX, 4, &netdev->index);
l_genl_msg_append_attr(msg, NL80211_ATTR_WIPHY_FREQ,
4, &netdev->frequency);
l_genl_msg_append_attr(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
l_genl_msg_append_attr(msg, NL80211_ATTR_MAC, ETH_ALEN,
netdev->handshake->aa);
l_genl_msg_append_attr(msg, NL80211_ATTR_SSID, hs->ssid_len, hs->ssid);
l_genl_msg_append_attr(msg, NL80211_ATTR_AUTH_TYPE, 4, &auth_type);
l_genl_msg_append_attr(msg, NL80211_ATTR_IE, hs->supplicant_ie[1] + 2,
hs->supplicant_ie);
return msg;
}
@ -2181,8 +2178,7 @@ static void netdev_sae_tx_authenticate(const uint8_t *body,
struct netdev *netdev = user_data;
struct l_genl_msg *msg;
msg = netdev_build_cmd_authenticate(netdev, NL80211_AUTHTYPE_SAE,
netdev->handshake->aa);
msg = netdev_build_cmd_authenticate(netdev, NL80211_AUTHTYPE_SAE);
l_genl_msg_append_attr(msg, NL80211_ATTR_AUTH_DATA, body_len, body);
@ -2228,8 +2224,7 @@ static void netdev_owe_tx_authenticate(void *user_data)
struct l_genl_msg *msg;
msg = netdev_build_cmd_authenticate(netdev,
NL80211_AUTHTYPE_OPEN_SYSTEM,
netdev->handshake->aa);
NL80211_AUTHTYPE_OPEN_SYSTEM);
if (!l_genl_family_send(nl80211, msg, netdev_auth_cb,
netdev, NULL)) {
@ -2265,8 +2260,7 @@ static void netdev_fils_tx_authenticate(const uint8_t *body,
struct netdev *netdev = user_data;
struct l_genl_msg *msg;
msg = netdev_build_cmd_authenticate(netdev, NL80211_AUTHTYPE_FILS_SK,
netdev->handshake->aa);
msg = netdev_build_cmd_authenticate(netdev, NL80211_AUTHTYPE_FILS_SK);
l_genl_msg_append_attr(msg, NL80211_ATTR_AUTH_DATA, body_len, body);
@ -2941,30 +2935,6 @@ static uint32_t netdev_send_action_frame(struct netdev *netdev,
return netdev_send_action_framev(netdev, to, iov, 1, freq, callback);
}
/*
* Build an FT Authentication Request frame according to 12.5.2 / 12.5.4:
* RSN or non-RSN Over-the-air FT Protocol, with the IE contents
* according to 12.8.2: FT authentication sequence: contents of first message.
*/
static struct l_genl_msg *netdev_build_cmd_ft_authenticate(
struct netdev *netdev,
const struct handshake_state *hs)
{
uint32_t auth_type = NL80211_AUTHTYPE_FT;
struct l_genl_msg *msg;
msg = l_genl_msg_new_sized(NL80211_CMD_AUTHENTICATE, 512);
l_genl_msg_append_attr(msg, NL80211_ATTR_IFINDEX, 4, &netdev->index);
l_genl_msg_append_attr(msg, NL80211_ATTR_WIPHY_FREQ,
4, &netdev->frequency);
l_genl_msg_append_attr(msg, NL80211_ATTR_MAC, ETH_ALEN, hs->aa);
l_genl_msg_append_attr(msg, NL80211_ATTR_SSID, hs->ssid_len, hs->ssid);
l_genl_msg_append_attr(msg, NL80211_ATTR_AUTH_TYPE, 4, &auth_type);
return msg;
}
static void netdev_cmd_authenticate_ft_cb(struct l_genl_msg *msg,
void *user_data)
{
@ -2984,8 +2954,8 @@ static void netdev_ft_tx_authenticate(struct iovec *iov,
struct netdev *netdev = user_data;
struct l_genl_msg *cmd_authenticate;
cmd_authenticate = netdev_build_cmd_ft_authenticate(netdev,
netdev->handshake);
cmd_authenticate = netdev_build_cmd_authenticate(netdev,
NL80211_AUTHTYPE_FT);
if (!cmd_authenticate)
goto restore_snonce;