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netdev: Send addititional IEs for FT/SAE/OWE/FILS

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RM Enabled Capabilities and Extended Capabilities IEs were correctly
being sent when using CMD_CONNECT for initial connections and
re-associations.  However, for SoftMac SAE, FT, FILS and OWE connections,
these additional IEs were not added properly during the Associate step.
This commit is contained in:
Denis Kenzior 2021-08-05 09:44:11 -05:00
parent 289b8826bf
commit 8f9e6b3f76
1 changed files with 94 additions and 46 deletions
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140
src/netdev.c
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@ -268,6 +268,29 @@ static inline bool is_offload(struct handshake_state *hs)
return false;
}
static unsigned int netdev_populate_common_ies(struct netdev *netdev,
struct l_genl_msg *msg,
struct iovec *iov,
unsigned int n_iov,
unsigned int c_iov)
{
const uint8_t *extended_capabilities;
const uint8_t *rm_enabled_capabilities;
extended_capabilities = wiphy_get_extended_capabilities(netdev->wiphy,
netdev->type);
c_iov = iov_ie_append(iov, n_iov, c_iov, extended_capabilities);
rm_enabled_capabilities =
wiphy_get_rm_enabled_capabilities(netdev->wiphy);
c_iov = iov_ie_append(iov, n_iov, c_iov, rm_enabled_capabilities);
if (rm_enabled_capabilities)
l_genl_msg_append_attr(msg, NL80211_ATTR_USE_RRM, 0, NULL);
return c_iov;
}
/* Cancels ongoing GTK/IGTK related commands (if any) */
static void netdev_handshake_state_cancel_rekey(
struct netdev_handshake_state *nhs)
@ -2702,15 +2725,19 @@ static void netdev_sae_tx_associate(void *user_data)
struct netdev *netdev = user_data;
struct handshake_state *hs = netdev->handshake;
struct l_genl_msg *msg;
struct iovec iov[3];
struct iovec iov[64];
unsigned int n_iov = L_ARRAY_SIZE(iov);
unsigned int n_used = 0;
enum mpdu_management_subtype subtype =
MPDU_MANAGEMENT_SUBTYPE_ASSOCIATION_REQUEST;
msg = netdev_build_cmd_associate_common(netdev);
n_used = iov_ie_append(iov, n_iov, n_used, hs->supplicant_ie);
n_used = iov_ie_append(iov, n_iov, n_used, hs->mde);
n_used = iov_ie_append(iov, n_iov, n_used, hs->supplicant_rsnxe);
n_used = netdev_populate_common_ies(netdev, msg, iov, n_iov, n_used);
mpdu_sort_ies(subtype, iov, n_used);
l_genl_msg_append_attrv(msg, NL80211_ATTR_IE, iov, n_used);
@ -2741,15 +2768,29 @@ static void netdev_owe_tx_authenticate(void *user_data)
netdev->auth_cmd = l_genl_msg_ref(msg);
}
static void netdev_owe_tx_associate(struct iovec *ie_iov, size_t iov_len,
static void netdev_owe_tx_associate(struct iovec *owe_iov, size_t n_owe_iov,
void *user_data)
{
struct netdev *netdev = user_data;
struct l_genl_msg *msg;
struct iovec iov[64];
unsigned int n_iov = L_ARRAY_SIZE(iov);
unsigned int c_iov = 0;
enum mpdu_management_subtype subtype =
MPDU_MANAGEMENT_SUBTYPE_ASSOCIATION_REQUEST;
msg = netdev_build_cmd_associate_common(netdev);
l_genl_msg_append_attrv(msg, NL80211_ATTR_IE, ie_iov, iov_len);
c_iov = netdev_populate_common_ies(netdev, msg, iov, n_iov, c_iov);
if (!L_WARN_ON(n_iov - c_iov < n_owe_iov)) {
memcpy(iov + c_iov, owe_iov, sizeof(*owe_iov) * n_owe_iov);
c_iov += n_owe_iov;
}
mpdu_sort_ies(subtype, iov, c_iov);
l_genl_msg_append_attrv(msg, NL80211_ATTR_IE, iov, c_iov);
if (!l_genl_family_send(nl80211, msg, netdev_assoc_cb,
netdev, NULL)) {
@ -2782,20 +2823,35 @@ static void netdev_fils_tx_authenticate(const uint8_t *body,
netdev->auth_cmd = l_genl_msg_ref(msg);
}
static void netdev_fils_tx_associate(struct iovec *iov, size_t iov_len,
static void netdev_fils_tx_associate(struct iovec *fils_iov, size_t n_fils_iov,
const uint8_t *kek, size_t kek_len,
const uint8_t *nonces, size_t nonces_len,
const uint8_t *nonces,
size_t nonces_len,
void *user_data)
{
struct netdev *netdev = user_data;
struct l_genl_msg *msg;
struct iovec iov[64];
unsigned int n_iov = L_ARRAY_SIZE(iov);
unsigned int c_iov = 0;
enum mpdu_management_subtype subtype =
MPDU_MANAGEMENT_SUBTYPE_ASSOCIATION_REQUEST;
msg = netdev_build_cmd_associate_common(netdev);
c_iov = netdev_populate_common_ies(netdev, msg, iov, n_iov, c_iov);
l_genl_msg_append_attrv(msg, NL80211_ATTR_IE, iov, iov_len);
if (!L_WARN_ON(n_iov - c_iov < n_fils_iov)) {
memcpy(iov + c_iov, fils_iov, sizeof(*fils_iov) * n_fils_iov);
c_iov += n_fils_iov;
}
mpdu_sort_ies(subtype, iov, c_iov);
l_genl_msg_append_attrv(msg, NL80211_ATTR_IE, iov, c_iov);
l_genl_msg_append_attr(msg, NL80211_ATTR_FILS_KEK, kek_len, kek);
l_genl_msg_append_attr(msg, NL80211_ATTR_FILS_NONCES, nonces_len, nonces);
l_genl_msg_append_attr(msg, NL80211_ATTR_FILS_NONCES,
nonces_len, nonces);
if (!l_genl_family_send(nl80211, msg, netdev_assoc_cb,
netdev, NULL)) {
@ -2817,12 +2873,14 @@ static struct l_genl_msg *netdev_build_cmd_connect(struct netdev *netdev,
uint32_t auth_type = IE_AKM_IS_SAE(hs->akm_suite) ?
NL80211_AUTHTYPE_SAE :
NL80211_AUTHTYPE_OPEN_SYSTEM;
enum mpdu_management_subtype subtype = prev_bssid ?
MPDU_MANAGEMENT_SUBTYPE_REASSOCIATION_REQUEST :
MPDU_MANAGEMENT_SUBTYPE_ASSOCIATION_REQUEST;
struct l_genl_msg *msg;
struct iovec iov[4 + num_vendor_ies];
int iov_elems = 0;
struct iovec iov[64];
unsigned int n_iov = L_ARRAY_SIZE(iov);
unsigned int c_iov = 0;
bool is_rsn = hs->supplicant_ie != NULL;
const uint8_t *extended_capabilities;
const uint8_t *rm_enabled_capabilities;
msg = l_genl_msg_new_sized(NL80211_CMD_CONNECT, 512);
l_genl_msg_append_attr(msg, NL80211_ATTR_IFINDEX, 4, &netdev->index);
@ -2901,10 +2959,7 @@ static struct l_genl_msg *netdev_build_cmd_connect(struct netdev *netdev,
4, &wpa_version);
l_genl_msg_append_attr(msg, NL80211_ATTR_CONTROL_PORT, 0, NULL);
iov[iov_elems].iov_base = (void *) hs->supplicant_ie;
iov[iov_elems].iov_len = hs->supplicant_ie[1] + 2;
iov_elems += 1;
c_iov = iov_ie_append(iov, n_iov, c_iov, hs->supplicant_ie);
}
if (netdev->pae_over_nl80211)
@ -2912,40 +2967,19 @@ static struct l_genl_msg *netdev_build_cmd_connect(struct netdev *netdev,
NL80211_ATTR_CONTROL_PORT_OVER_NL80211,
0, NULL);
rm_enabled_capabilities =
wiphy_get_rm_enabled_capabilities(netdev->wiphy);
if (rm_enabled_capabilities) {
iov[iov_elems].iov_base = (void *) rm_enabled_capabilities;
iov[iov_elems].iov_len = rm_enabled_capabilities[1] + 2;
iov_elems += 1;
c_iov = iov_ie_append(iov, n_iov, c_iov, hs->mde);
c_iov = netdev_populate_common_ies(netdev, msg, iov, n_iov, c_iov);
l_genl_msg_append_attr(msg, NL80211_ATTR_USE_RRM, 0, NULL);
}
mpdu_sort_ies(subtype, iov, c_iov);
if (hs->mde) {
iov[iov_elems].iov_base = (void *) hs->mde;
iov[iov_elems].iov_len = hs->mde[1] + 2;
iov_elems += 1;
}
/*
* This element should be added after MDE
* See 802.11-2016, Section 9.3.3.6
*/
extended_capabilities = wiphy_get_extended_capabilities(netdev->wiphy,
netdev->type);
iov[iov_elems].iov_base = (void *) extended_capabilities;
iov[iov_elems].iov_len = extended_capabilities[1] + 2;
iov_elems += 1;
if (vendor_ies) {
memcpy(iov + iov_elems, vendor_ies,
if (vendor_ies && !L_WARN_ON(n_iov - c_iov < num_vendor_ies)) {
memcpy(iov + c_iov, vendor_ies,
sizeof(*vendor_ies) * num_vendor_ies);
iov_elems += num_vendor_ies;
c_iov += num_vendor_ies;
}
if (iov_elems)
l_genl_msg_append_attrv(msg, NL80211_ATTR_IE, iov, iov_elems);
if (c_iov)
l_genl_msg_append_attrv(msg, NL80211_ATTR_IE, iov, c_iov);
return msg;
}
@ -3810,18 +3844,32 @@ restore_snonce:
MMPDU_STATUS_CODE_UNSPECIFIED);
}
static int netdev_ft_tx_associate(struct iovec *ie_iov, size_t iov_len,
static int netdev_ft_tx_associate(struct iovec *ft_iov, size_t n_ft_iov,
void *user_data)
{
struct netdev *netdev = user_data;
struct auth_proto *ap = netdev->ap;
struct l_genl_msg *msg;
struct iovec iov[64];
unsigned int n_iov = L_ARRAY_SIZE(iov);
unsigned int c_iov = 0;
enum mpdu_management_subtype subtype =
MPDU_MANAGEMENT_SUBTYPE_REASSOCIATION_REQUEST;
msg = netdev_build_cmd_associate_common(netdev);
c_iov = netdev_populate_common_ies(netdev, msg, iov, n_iov, c_iov);
if (!L_WARN_ON(n_iov - c_iov < n_ft_iov)) {
memcpy(iov + c_iov, ft_iov, sizeof(*ft_iov) * n_ft_iov);
c_iov += n_ft_iov;
}
mpdu_sort_ies(subtype, iov, c_iov);
l_genl_msg_append_attr(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN,
ap->prev_bssid);
l_genl_msg_append_attrv(msg, NL80211_ATTR_IE, ie_iov, iov_len);
l_genl_msg_append_attrv(msg, NL80211_ATTR_IE, iov, c_iov);
netdev->connect_cmd_id = l_genl_family_send(nl80211, msg,
netdev_cmd_ft_reassociate_cb,