#include "ap/hostapd.h"
#include "ap/sta_info.h"
#include "ap/ieee802_11.h"
+#include "ap/wpa_auth.h"
#include "wpa_supplicant_i.h"
#include "driver_i.h"
#include "mesh_mpm.h"
#include "mesh_rsn.h"
struct mesh_peer_mgmt_ie {
- const u8 *proto_id;
- const u8 *llid;
- const u8 *plid;
- const u8 *reason;
- const u8 *pmk;
+ const u8 *proto_id; /* Mesh Peering Protocol Identifier (2 octets) */
+ const u8 *llid; /* Local Link ID (2 octets) */
+ const u8 *plid; /* Peer Link ID (conditional, 2 octets) */
+ const u8 *reason; /* Reason Code (conditional, 2 octets) */
+ const u8 *chosen_pmk; /* Chosen PMK (optional, 16 octets) */
};
static void plink_timer(void *eloop_ctx, void *user_data);
};
static const char * const mplstate[] = {
+ [0] = "UNINITIALIZED",
[PLINK_LISTEN] = "LISTEN",
[PLINK_OPEN_SENT] = "OPEN_SENT",
[PLINK_OPEN_RCVD] = "OPEN_RCVD",
{
os_memset(mpm_ie, 0, sizeof(*mpm_ie));
- /* remove optional PMK at end */
- if (len >= 16) {
- len -= 16;
- mpm_ie->pmk = ie + len - 16;
+ /* Remove optional Chosen PMK field at end */
+ if (len >= SAE_PMKID_LEN) {
+ mpm_ie->chosen_pmk = ie + len - SAE_PMKID_LEN;
+ len -= SAE_PMKID_LEN;
}
if ((action_field == PLINK_OPEN && len != 4) ||
len -= 2;
}
- /* plid, present for confirm, and possibly close */
- if (len)
+ /* Peer Link ID, present for confirm, and possibly close */
+ if (len >= 2)
mpm_ie->plid = ie;
return 0;
struct hostapd_data *bss = ifmsh->bss[0];
struct mesh_conf *conf = ifmsh->mconf;
u8 supp_rates[2 + 2 + 32];
-#ifdef CONFIG_IEEE80211N
- u8 ht_capa_oper[2 + 26 + 2 + 22];
-#endif /* CONFIG_IEEE80211N */
u8 *pos, *cat;
u8 ie_len, add_plid = 0;
int ret;
2 + 22; /* HT operation */
}
#endif /* CONFIG_IEEE80211N */
+#ifdef CONFIG_IEEE80211AC
+ if (type != PLINK_CLOSE && wpa_s->mesh_vht_enabled) {
+ buf_len += 2 + 12 + /* VHT Capabilities */
+ 2 + 5; /* VHT Operation */
+ }
+#endif /* CONFIG_IEEE80211AC */
+ if (type != PLINK_CLOSE)
+ buf_len += conf->rsn_ie_len; /* RSN IE */
+
buf = wpabuf_alloc(buf_len);
if (!buf)
return;
/* aid */
if (type == PLINK_CONFIRM)
- wpabuf_put_le16(buf, sta->peer_lid);
+ wpabuf_put_le16(buf, sta->aid);
/* IE: supp + ext. supp rates */
pos = hostapd_eid_supp_rates(bss, supp_rates);
pos = hostapd_eid_ext_supp_rates(bss, pos);
wpabuf_put_data(buf, supp_rates, pos - supp_rates);
+ /* IE: RSN IE */
+ wpabuf_put_data(buf, conf->rsn_ie, conf->rsn_ie_len);
+
/* IE: Mesh ID */
wpabuf_put_u8(buf, WLAN_EID_MESH_ID);
wpabuf_put_u8(buf, conf->meshid_len);
/* TODO: Add Connected to Mesh Gate/AS subfields */
wpabuf_put_u8(buf, info);
/* always forwarding & accepting plinks for now */
- wpabuf_put_u8(buf, 0x1 | 0x8);
+ wpabuf_put_u8(buf, MESH_CAP_ACCEPT_ADDITIONAL_PEER |
+ MESH_CAP_FORWARDING);
} else { /* Peer closing frame */
/* IE: Mesh ID */
wpabuf_put_u8(buf, WLAN_EID_MESH_ID);
#ifdef CONFIG_IEEE80211N
if (type != PLINK_CLOSE && wpa_s->mesh_ht_enabled) {
+ u8 ht_capa_oper[2 + 26 + 2 + 22];
+
pos = hostapd_eid_ht_capabilities(bss, ht_capa_oper);
pos = hostapd_eid_ht_operation(bss, pos);
wpabuf_put_data(buf, ht_capa_oper, pos - ht_capa_oper);
}
#endif /* CONFIG_IEEE80211N */
+#ifdef CONFIG_IEEE80211AC
+ if (type != PLINK_CLOSE && wpa_s->mesh_vht_enabled) {
+ u8 vht_capa_oper[2 + 12 + 2 + 5];
+
+ pos = hostapd_eid_vht_capabilities(bss, vht_capa_oper);
+ pos = hostapd_eid_vht_operation(bss, pos);
+ wpabuf_put_data(buf, vht_capa_oper, pos - vht_capa_oper);
+ }
+#endif /* CONFIG_IEEE80211AC */
if (ampe && mesh_rsn_protect_frame(wpa_s->mesh_rsn, sta, cat, buf)) {
wpa_msg(wpa_s, MSG_INFO,
goto fail;
}
+ wpa_msg(wpa_s, MSG_DEBUG, "Mesh MPM: Sending peering frame type %d to "
+ MACSTR " (my_lid=0x%x peer_lid=0x%x)",
+ type, MAC2STR(sta->addr), sta->my_lid, sta->peer_lid);
ret = wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0,
sta->addr, wpa_s->own_addr, wpa_s->own_addr,
wpabuf_head(buf), wpabuf_len(buf), 0);
struct hostapd_sta_add_params params;
int ret;
+ wpa_msg(wpa_s, MSG_DEBUG, "MPM set " MACSTR " from %s into %s",
+ MAC2STR(sta->addr), mplstate[sta->plink_state],
+ mplstate[state]);
sta->plink_state = state;
os_memset(¶ms, 0, sizeof(params));
params.plink_state = state;
params.set = 1;
- wpa_msg(wpa_s, MSG_DEBUG, "MPM set " MACSTR " into %s",
- MAC2STR(sta->addr), mplstate[state]);
ret = wpa_drv_sta_add(wpa_s, ¶ms);
if (ret) {
wpa_msg(wpa_s, MSG_ERROR, "Driver failed to set " MACSTR
eloop_cancel_timeout(plink_timer, wpa_s, sta);
- if (sta->mpm_close_reason == WLAN_REASON_MESH_CLOSE_RCVD) {
- ap_free_sta(hapd, sta);
- return;
- }
-
- wpa_mesh_set_plink_state(wpa_s, sta, PLINK_LISTEN);
- sta->my_lid = sta->peer_lid = sta->mpm_close_reason = 0;
- sta->mpm_retries = 0;
+ ap_free_sta(hapd, sta);
}
struct sta_info *sta = user_data;
u16 reason = 0;
struct mesh_conf *conf = wpa_s->ifmsh->mconf;
+ struct hostapd_data *hapd = wpa_s->ifmsh->bss[0];
switch (sta->plink_state) {
case PLINK_OPEN_RCVD:
break;
case PLINK_HOLDING:
/* holding timer */
+
+ if (sta->mesh_sae_pmksa_caching) {
+ wpa_printf(MSG_DEBUG, "MPM: Peer " MACSTR
+ " looks like it does not support mesh SAE PMKSA caching, so remove the cached entry for it",
+ MAC2STR(sta->addr));
+ wpa_auth_pmksa_remove(hapd->wpa_auth, sta->addr);
+ }
mesh_mpm_fsm_restart(wpa_s, sta);
break;
default:
}
-int mesh_mpm_plink_close(struct hostapd_data *hapd,
- struct sta_info *sta, void *ctx)
+static int mesh_mpm_plink_close(struct hostapd_data *hapd, struct sta_info *sta,
+ void *ctx)
{
struct wpa_supplicant *wpa_s = ctx;
int reason = WLAN_REASON_MESH_PEERING_CANCELLED;
}
+int mesh_mpm_close_peer(struct wpa_supplicant *wpa_s, const u8 *addr)
+{
+ struct hostapd_data *hapd;
+ struct sta_info *sta;
+
+ if (!wpa_s->ifmsh) {
+ wpa_msg(wpa_s, MSG_INFO, "Mesh is not prepared yet");
+ return -1;
+ }
+
+ hapd = wpa_s->ifmsh->bss[0];
+ sta = ap_get_sta(hapd, addr);
+ if (!sta) {
+ wpa_msg(wpa_s, MSG_INFO, "No such mesh peer");
+ return -1;
+ }
+
+ return mesh_mpm_plink_close(hapd, sta, wpa_s) == 0 ? 0 : -1;
+}
+
+
+static void peer_add_timer(void *eloop_ctx, void *user_data)
+{
+ struct wpa_supplicant *wpa_s = eloop_ctx;
+ struct hostapd_data *hapd = wpa_s->ifmsh->bss[0];
+
+ os_memset(hapd->mesh_required_peer, 0, ETH_ALEN);
+}
+
+
+int mesh_mpm_connect_peer(struct wpa_supplicant *wpa_s, const u8 *addr,
+ int duration)
+{
+ struct wpa_ssid *ssid = wpa_s->current_ssid;
+ struct hostapd_data *hapd;
+ struct sta_info *sta;
+ struct mesh_conf *conf;
+
+ if (!wpa_s->ifmsh) {
+ wpa_msg(wpa_s, MSG_INFO, "Mesh is not prepared yet");
+ return -1;
+ }
+
+ if (!ssid || !ssid->no_auto_peer) {
+ wpa_msg(wpa_s, MSG_INFO,
+ "This command is available only with no_auto_peer mesh network");
+ return -1;
+ }
+
+ hapd = wpa_s->ifmsh->bss[0];
+ conf = wpa_s->ifmsh->mconf;
+
+ sta = ap_get_sta(hapd, addr);
+ if (!sta) {
+ wpa_msg(wpa_s, MSG_INFO, "No such mesh peer");
+ return -1;
+ }
+
+ if ((PLINK_OPEN_SENT <= sta->plink_state &&
+ sta->plink_state <= PLINK_ESTAB) ||
+ (sta->sae && sta->sae->state > SAE_NOTHING)) {
+ wpa_msg(wpa_s, MSG_INFO,
+ "Specified peer is connecting/connected");
+ return -1;
+ }
+
+ if (conf->security == MESH_CONF_SEC_NONE) {
+ mesh_mpm_plink_open(wpa_s, sta, PLINK_OPEN_SENT);
+ } else {
+ mesh_rsn_auth_sae_sta(wpa_s, sta);
+ os_memcpy(hapd->mesh_required_peer, addr, ETH_ALEN);
+ eloop_register_timeout(duration == -1 ? 10 : duration, 0,
+ peer_add_timer, wpa_s, NULL);
+ }
+
+ return 0;
+}
+
+
void mesh_mpm_deinit(struct wpa_supplicant *wpa_s, struct hostapd_iface *ifmsh)
{
struct hostapd_data *hapd = ifmsh->bss[0];
hapd->num_plinks = 0;
hostapd_free_stas(hapd);
+ eloop_cancel_timeout(peer_add_timer, wpa_s, NULL);
}
mesh_mpm_plink_open(wpa_s, sta, PLINK_OPEN_SENT);
}
-
-void wpa_mesh_new_mesh_peer(struct wpa_supplicant *wpa_s, const u8 *addr,
- struct ieee802_11_elems *elems)
+/*
+ * Initialize a sta_info structure for a peer and upload it into the driver
+ * in preparation for beginning authentication or peering. This is done when a
+ * Beacon (secure or open mesh) or a peering open frame (for open mesh) is
+ * received from the peer for the first time.
+ */
+static struct sta_info * mesh_mpm_add_peer(struct wpa_supplicant *wpa_s,
+ const u8 *addr,
+ struct ieee802_11_elems *elems)
{
struct hostapd_sta_add_params params;
struct mesh_conf *conf = wpa_s->ifmsh->mconf;
struct hostapd_data *data = wpa_s->ifmsh->bss[0];
struct sta_info *sta;
- struct wpa_ssid *ssid = wpa_s->current_ssid;
- int ret = 0;
+ int ret;
+
+ if (elems->mesh_config_len >= 7 &&
+ !(elems->mesh_config[6] & MESH_CAP_ACCEPT_ADDITIONAL_PEER)) {
+ wpa_msg(wpa_s, MSG_DEBUG,
+ "mesh: Ignore a crowded peer " MACSTR,
+ MAC2STR(addr));
+ return NULL;
+ }
sta = ap_get_sta(data, addr);
if (!sta) {
sta = ap_sta_add(data, addr);
if (!sta)
- return;
+ return NULL;
}
+ /* Set WMM by default since Mesh STAs are QoS STAs */
+ sta->flags |= WLAN_STA_WMM;
+
/* initialize sta */
- if (copy_supp_rates(wpa_s, sta, elems))
- return;
+ if (copy_supp_rates(wpa_s, sta, elems)) {
+ ap_free_sta(data, sta);
+ return NULL;
+ }
- mesh_mpm_init_link(wpa_s, sta);
+ if (!sta->my_lid)
+ mesh_mpm_init_link(wpa_s, sta);
#ifdef CONFIG_IEEE80211N
- copy_sta_ht_capab(data, sta, elems->ht_capabilities,
- elems->ht_capabilities_len);
+ copy_sta_ht_capab(data, sta, elems->ht_capabilities);
update_ht_state(data, sta);
#endif /* CONFIG_IEEE80211N */
+#ifdef CONFIG_IEEE80211AC
+ copy_sta_vht_capab(data, sta, elems->vht_capabilities);
+ set_sta_vht_opmode(data, sta, elems->vht_opmode_notif);
+#endif /* CONFIG_IEEE80211AC */
+
+ if (hostapd_get_aid(data, sta) < 0) {
+ wpa_msg(wpa_s, MSG_ERROR, "No AIDs available");
+ ap_free_sta(data, sta);
+ return NULL;
+ }
+
/* insert into driver */
os_memset(¶ms, 0, sizeof(params));
params.supp_rates = sta->supported_rates;
params.supp_rates_len = sta->supported_rates_len;
params.addr = addr;
params.plink_state = sta->plink_state;
- params.aid = sta->peer_lid;
+ params.aid = sta->aid;
params.listen_interval = 100;
params.ht_capabilities = sta->ht_capabilities;
+ params.vht_capabilities = sta->vht_capabilities;
params.flags |= WPA_STA_WMM;
params.flags_mask |= WPA_STA_AUTHENTICATED;
if (conf->security == MESH_CONF_SEC_NONE) {
wpa_msg(wpa_s, MSG_ERROR,
"Driver failed to insert " MACSTR ": %d",
MAC2STR(addr), ret);
- return;
+ ap_free_sta(data, sta);
+ return NULL;
}
- if (ssid && ssid->no_auto_peer) {
+ return sta;
+}
+
+
+void wpa_mesh_new_mesh_peer(struct wpa_supplicant *wpa_s, const u8 *addr,
+ struct ieee802_11_elems *elems)
+{
+ struct mesh_conf *conf = wpa_s->ifmsh->mconf;
+ struct hostapd_data *data = wpa_s->ifmsh->bss[0];
+ struct sta_info *sta;
+ struct wpa_ssid *ssid = wpa_s->current_ssid;
+
+ sta = mesh_mpm_add_peer(wpa_s, addr, elems);
+ if (!sta)
+ return;
+
+ if (ssid && ssid->no_auto_peer &&
+ (is_zero_ether_addr(data->mesh_required_peer) ||
+ os_memcmp(data->mesh_required_peer, addr, ETH_ALEN) != 0)) {
wpa_msg(wpa_s, MSG_INFO, "will not initiate new peer link with "
MACSTR " because of no_auto_peer", MAC2STR(addr));
if (data->mesh_pending_auth) {
return;
}
- if (conf->security == MESH_CONF_SEC_NONE)
- mesh_mpm_plink_open(wpa_s, sta, PLINK_OPEN_SENT);
- else
+ if (conf->security == MESH_CONF_SEC_NONE) {
+ if (sta->plink_state < PLINK_OPEN_SENT ||
+ sta->plink_state > PLINK_ESTAB)
+ mesh_mpm_plink_open(wpa_s, sta, PLINK_OPEN_SENT);
+ } else {
mesh_rsn_auth_sae_sta(wpa_s, sta);
+ }
}
MAC2STR(sta->addr));
if (conf->security & MESH_CONF_SEC_AMPE) {
- wpa_drv_set_key(wpa_s, WPA_ALG_CCMP, sta->addr, 0, 0,
- seq, sizeof(seq), sta->mtk, sizeof(sta->mtk));
- wpa_drv_set_key(wpa_s, WPA_ALG_CCMP, sta->addr, 1, 0,
- seq, sizeof(seq),
- sta->mgtk, sizeof(sta->mgtk));
- wpa_drv_set_key(wpa_s, WPA_ALG_IGTK, sta->addr, 4, 0,
- seq, sizeof(seq),
- sta->mgtk, sizeof(sta->mgtk));
-
- wpa_hexdump_key(MSG_DEBUG, "mtk:", sta->mtk, sizeof(sta->mtk));
- wpa_hexdump_key(MSG_DEBUG, "mgtk:",
- sta->mgtk, sizeof(sta->mgtk));
+ wpa_hexdump_key(MSG_DEBUG, "mesh: MTK", sta->mtk, sta->mtk_len);
+ wpa_drv_set_key(wpa_s, wpa_cipher_to_alg(conf->pairwise_cipher),
+ sta->addr, 0, 0, seq, sizeof(seq),
+ sta->mtk, sta->mtk_len);
+
+ wpa_hexdump_key(MSG_DEBUG, "mesh: RX MGTK Key RSC",
+ sta->mgtk_rsc, sizeof(sta->mgtk_rsc));
+ wpa_hexdump_key(MSG_DEBUG, "mesh: RX MGTK",
+ sta->mgtk, sta->mgtk_len);
+ wpa_drv_set_key(wpa_s, wpa_cipher_to_alg(conf->group_cipher),
+ sta->addr, sta->mgtk_key_id, 0,
+ sta->mgtk_rsc, sizeof(sta->mgtk_rsc),
+ sta->mgtk, sta->mgtk_len);
+
+ if (sta->igtk_len) {
+ wpa_hexdump_key(MSG_DEBUG, "mesh: RX IGTK Key RSC",
+ sta->igtk_rsc, sizeof(sta->igtk_rsc));
+ wpa_hexdump_key(MSG_DEBUG, "mesh: RX IGTK",
+ sta->igtk, sta->igtk_len);
+ wpa_drv_set_key(
+ wpa_s,
+ wpa_cipher_to_alg(conf->mgmt_group_cipher),
+ sta->addr, sta->igtk_key_id, 0,
+ sta->igtk_rsc, sizeof(sta->igtk_rsc),
+ sta->igtk, sta->igtk_len);
+ }
}
wpa_mesh_set_plink_state(wpa_s, sta, PLINK_ESTAB);
hapd->num_plinks++;
sta->flags |= WLAN_STA_ASSOC;
+ sta->mesh_sae_pmksa_caching = 0;
+ eloop_cancel_timeout(peer_add_timer, wpa_s, NULL);
+ peer_add_timer(wpa_s, NULL);
eloop_cancel_timeout(plink_timer, wpa_s, sta);
/* Send ctrl event */
- wpa_msg_ctrl(wpa_s, MSG_INFO, MESH_PEER_CONNECTED MACSTR,
- MAC2STR(sta->addr));
+ wpa_msg(wpa_s, MSG_INFO, MESH_PEER_CONNECTED MACSTR,
+ MAC2STR(sta->addr));
}
break;
case CNF_ACPT:
wpa_mesh_set_plink_state(wpa_s, sta, PLINK_CNF_RCVD);
+ eloop_cancel_timeout(plink_timer, wpa_s, sta);
eloop_register_timeout(
conf->dot11MeshConfirmTimeout / 1000,
(conf->dot11MeshConfirmTimeout % 1000) * 1000,
PLINK_CLOSE, reason);
break;
case OPN_ACPT:
+ if (conf->security & MESH_CONF_SEC_AMPE)
+ mesh_rsn_derive_mtk(wpa_s, sta);
mesh_mpm_plink_estab(wpa_s, sta);
mesh_mpm_send_plink_action(wpa_s, sta,
PLINK_CONFIRM, 0);
" closed with reason %d",
MAC2STR(sta->addr), reason);
- wpa_msg_ctrl(wpa_s, MSG_INFO,
- MESH_PEER_DISCONNECTED MACSTR,
- MAC2STR(sta->addr));
+ wpa_msg(wpa_s, MSG_INFO, MESH_PEER_DISCONNECTED MACSTR,
+ MAC2STR(sta->addr));
hapd->num_plinks--;
llid = WPA_GET_LE16(peer_mgmt_ie.plid);
wpa_printf(MSG_DEBUG, "MPM: plid=0x%x llid=0x%x", plid, llid);
+ if (action_field == PLINK_CLOSE)
+ wpa_printf(MSG_DEBUG, "MPM: close reason=%u",
+ WPA_GET_LE16(peer_mgmt_ie.reason));
+
sta = ap_get_sta(hapd, mgmt->sa);
+
+ /*
+ * If this is an open frame from an unknown STA, and this is an
+ * open mesh, then go ahead and add the peer before proceeding.
+ */
+ if (!sta && action_field == PLINK_OPEN &&
+ (!(mconf->security & MESH_CONF_SEC_AMPE) ||
+ wpa_auth_pmksa_get(hapd->wpa_auth, mgmt->sa)))
+ sta = mesh_mpm_add_peer(wpa_s, mgmt->sa, &elems);
+
if (!sta) {
wpa_printf(MSG_DEBUG, "MPM: No STA entry for peer");
return;
if ((mconf->security & MESH_CONF_SEC_AMPE) &&
mesh_rsn_process_ampe(wpa_s, sta, &elems,
&mgmt->u.action.category,
+ peer_mgmt_ie.chosen_pmk,
ies, ie_len)) {
wpa_printf(MSG_DEBUG, "MPM: RSN process rejected frame");
return;
/* called by ap_free_sta */
-void mesh_mpm_free_sta(struct sta_info *sta)
+void mesh_mpm_free_sta(struct hostapd_data *hapd, struct sta_info *sta)
{
+ if (sta->plink_state == PLINK_ESTAB)
+ hapd->num_plinks--;
eloop_cancel_timeout(plink_timer, ELOOP_ALL_CTX, sta);
eloop_cancel_timeout(mesh_auth_timer, ELOOP_ALL_CTX, sta);
}
projects / mech_eap.git / blobdiff