/*
- * WPA Supplicant - driver interaction with Linux nl80211/cfg80211
+ * Driver interaction with Linux nl80211/cfg80211
* Copyright (c) 2003-2008, Jouni Malinen <j@w1.fi>
*
* This program is free software; you can redistribute it and/or modify
#include <netlink/genl/family.h>
#include <netlink/genl/ctrl.h>
#include "nl80211_copy.h"
-#ifdef CONFIG_CLIENT_MLME
-#include <netpacket/packet.h>
-#include <linux/if_ether.h>
-#include "radiotap.h"
-#include "radiotap_iter.h"
-#endif /* CONFIG_CLIENT_MLME */
-
#include "wireless_copy.h"
+
#include "common.h"
#include "driver.h"
#include "eloop.h"
#include "ieee802_11_defs.h"
+#if defined(CONFIG_AP) || defined(HOSTAPD)
+#include <netpacket/packet.h>
+#include <linux/filter.h>
+#include "radiotap.h"
+#include "radiotap_iter.h"
+#endif /* CONFIG_AP || HOSTAPD */
+
+#ifdef CONFIG_AP
+
+#include "../hostapd/hostapd_defs.h"
+
+#ifndef ETH_P_ALL
+#define ETH_P_ALL 0x0003
+#endif
+
+#endif /* CONFIG_AP */
+
+#ifdef HOSTAPD
+#include <netlink/msg.h>
+#include <netlink/attr.h>
+#include <net/if.h>
+#include <net/if_arp.h>
+
+#include "../../hostapd/hostapd.h"
+#include "../../hostapd/config.h"
+#include "../../hostapd/hw_features.h"
+#include "../../hostapd/mlme.h"
+#include "../../hostapd/sta_flags.h"
+#include "ieee802_11_common.h"
+
+#ifdef CONFIG_LIBNL20
+/* libnl 2.0 compatibility code */
+#define nl_handle_alloc_cb nl_socket_alloc_cb
+#define nl_handle_destroy nl_socket_free
+#endif /* CONFIG_LIBNL20 */
+
+#endif /* HOSTAPD */
+
+
#ifndef IFF_LOWER_UP
#define IFF_LOWER_UP 0x10000 /* driver signals L1 up */
#endif
#define IF_OPER_UP 6
#endif
+struct i802_bss {
+ struct i802_bss *next;
+ char ifname[IFNAMSIZ + 1];
+ unsigned int beacon_set:1;
+};
struct wpa_driver_nl80211_data {
void *ctx;
- int event_sock;
- int ioctl_sock;
+ int link_event_sock;
+ int ioctl_sock; /* socket for ioctl() use */
char ifname[IFNAMSIZ + 1];
int ifindex;
int if_removed;
- u8 *assoc_req_ies;
- size_t assoc_req_ies_len;
- u8 *assoc_resp_ies;
- size_t assoc_resp_ies_len;
struct wpa_driver_capa capa;
int has_capability;
- int we_version_compiled;
-
- /* for set_auth_alg fallback */
- int use_crypt;
- int auth_alg_fallback;
int operstate;
- char mlmedev[IFNAMSIZ + 1];
-
int scan_complete_events;
struct nl_handle *nl_handle;
struct nl_cb *nl_cb;
struct genl_family *nl80211;
-#ifdef CONFIG_CLIENT_MLME
+ u8 bssid[ETH_ALEN];
+ int associated;
+ u8 ssid[32];
+ size_t ssid_len;
+
+#ifdef CONFIG_AP
+ int beacon_int;
+ unsigned int beacon_set:1;
+ int monitor_sock;
+ int monitor_ifidx;
+#endif /* CONFIG_AP */
+
+#ifdef HOSTAPD
+ struct hostapd_data *hapd;
+
+ int eapol_sock; /* socket for EAPOL frames */
int monitor_sock; /* socket for monitor */
int monitor_ifidx;
-#endif /* CONFIG_CLIENT_MLME */
+
+ int default_if_indices[16];
+ int *if_indices;
+ int num_if_indices;
+
+ int beacon_int;
+ struct i802_bss bss;
+ unsigned int ht_40mhz_scan:1;
+
+ int last_freq;
+ int last_freq_ht;
+ struct hostapd_neighbor_bss *neighbors;
+ size_t num_neighbors;
+#endif /* HOSTAPD */
};
static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx,
void *timeout_ctx);
-static int wpa_driver_nl80211_set_mode(void *priv, int mode);
-static int wpa_driver_nl80211_flush_pmkid(void *priv);
-static int wpa_driver_nl80211_get_range(void *priv);
-static void
+static int wpa_driver_nl80211_set_mode(struct wpa_driver_nl80211_data *drv,
+ int mode);
+static int
wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv);
+#ifdef CONFIG_AP
+static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv,
+ int ifidx);
+#endif /* CONFIG_AP */
+
/* nl80211 code */
static int ack_handler(struct nl_msg *msg, void *arg)
return NL_SKIP;
}
+
+static int no_seq_check(struct nl_msg *msg, void *arg)
+{
+ return NL_OK;
+}
+
+
static int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv,
struct nl_msg *msg,
int (*valid_handler)(struct nl_msg *, void *),
}
+struct family_data {
+ const char *group;
+ int id;
+};
+
+
+static int family_handler(struct nl_msg *msg, void *arg)
+{
+ struct family_data *res = arg;
+ struct nlattr *tb[CTRL_ATTR_MAX + 1];
+ struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
+ struct nlattr *mcgrp;
+ int i;
+
+ nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
+ genlmsg_attrlen(gnlh, 0), NULL);
+ if (!tb[CTRL_ATTR_MCAST_GROUPS])
+ return NL_SKIP;
+
+ nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) {
+ struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1];
+ nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp),
+ nla_len(mcgrp), NULL);
+ if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] ||
+ !tb2[CTRL_ATTR_MCAST_GRP_ID] ||
+ os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]),
+ res->group,
+ nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0)
+ continue;
+ res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]);
+ break;
+ };
+
+ return NL_SKIP;
+}
+
+
+static int nl_get_multicast_id(struct wpa_driver_nl80211_data *drv,
+ const char *family, const char *group)
+{
+ struct nl_msg *msg;
+ int ret = -1;
+ struct family_data res = { group, -ENOENT };
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
+ genlmsg_put(msg, 0, 0, genl_ctrl_resolve(drv->nl_handle, "nlctrl"),
+ 0, 0, CTRL_CMD_GETFAMILY, 0);
+ NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family);
+
+ ret = send_and_recv_msgs(drv, msg, family_handler, &res);
+ msg = NULL;
+ if (ret == 0)
+ ret = res.id;
+
+nla_put_failure:
+ nlmsg_free(msg);
+ return ret;
+}
+
+
static int wpa_driver_nl80211_send_oper_ifla(
struct wpa_driver_nl80211_data *drv,
int linkmode, int operstate)
wpa_printf(MSG_DEBUG, "WEXT: Operstate: linkmode=%d, operstate=%d",
linkmode, operstate);
- ret = send(drv->event_sock, &req, req.hdr.nlmsg_len, 0);
+ ret = send(drv->link_event_sock, &req, req.hdr.nlmsg_len, 0);
if (ret < 0) {
wpa_printf(MSG_DEBUG, "WEXT: Sending operstate IFLA failed: "
"%s (assume operstate is not supported)",
static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid)
{
struct wpa_driver_nl80211_data *drv = priv;
- struct iwreq iwr;
- int ret = 0;
-
- os_memset(&iwr, 0, sizeof(iwr));
- os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
-
- if (ioctl(drv->ioctl_sock, SIOCGIWAP, &iwr) < 0) {
- perror("ioctl[SIOCGIWAP]");
- ret = -1;
- }
- os_memcpy(bssid, iwr.u.ap_addr.sa_data, ETH_ALEN);
-
- return ret;
+ if (!drv->associated)
+ return -1;
+ os_memcpy(bssid, drv->bssid, ETH_ALEN);
+ return 0;
}
-static int wpa_driver_nl80211_set_bssid(void *priv, const u8 *bssid)
+static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid)
{
struct wpa_driver_nl80211_data *drv = priv;
- struct iwreq iwr;
- int ret = 0;
-
- os_memset(&iwr, 0, sizeof(iwr));
- os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
- iwr.u.ap_addr.sa_family = ARPHRD_ETHER;
- if (bssid)
- os_memcpy(iwr.u.ap_addr.sa_data, bssid, ETH_ALEN);
- else
- os_memset(iwr.u.ap_addr.sa_data, 0, ETH_ALEN);
-
- if (ioctl(drv->ioctl_sock, SIOCSIWAP, &iwr) < 0) {
- perror("ioctl[SIOCSIWAP]");
- ret = -1;
- }
-
- return ret;
+ if (!drv->associated)
+ return -1;
+ os_memcpy(ssid, drv->ssid, drv->ssid_len);
+ return drv->ssid_len;
}
-static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid)
+#ifndef HOSTAPD
+static void wpa_driver_nl80211_event_link(struct wpa_driver_nl80211_data *drv,
+ void *ctx, char *buf, size_t len,
+ int del)
{
- struct wpa_driver_nl80211_data *drv = priv;
- struct iwreq iwr;
- int ret = 0;
+ union wpa_event_data event;
- os_memset(&iwr, 0, sizeof(iwr));
- os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
- iwr.u.essid.pointer = (caddr_t) ssid;
- iwr.u.essid.length = 32;
+ os_memset(&event, 0, sizeof(event));
+ if (len > sizeof(event.interface_status.ifname))
+ len = sizeof(event.interface_status.ifname) - 1;
+ os_memcpy(event.interface_status.ifname, buf, len);
+ event.interface_status.ievent = del ? EVENT_INTERFACE_REMOVED :
+ EVENT_INTERFACE_ADDED;
- if (ioctl(drv->ioctl_sock, SIOCGIWESSID, &iwr) < 0) {
- perror("ioctl[SIOCGIWESSID]");
- ret = -1;
- } else {
- ret = iwr.u.essid.length;
- if (ret > 32)
- ret = 32;
- /* Some drivers include nul termination in the SSID, so let's
- * remove it here before further processing. WE-21 changes this
- * to explicitly require the length _not_ to include nul
- * termination. */
- if (ret > 0 && ssid[ret - 1] == '\0' &&
- drv->we_version_compiled < 21)
- ret--;
+ wpa_printf(MSG_DEBUG, "RTM_%sLINK, IFLA_IFNAME: Interface '%s' %s",
+ del ? "DEL" : "NEW",
+ event.interface_status.ifname,
+ del ? "removed" : "added");
+
+ if (os_strcmp(drv->ifname, event.interface_status.ifname) == 0) {
+ if (del)
+ drv->if_removed = 1;
+ else
+ drv->if_removed = 0;
}
- return ret;
+ wpa_supplicant_event(ctx, EVENT_INTERFACE_STATUS, &event);
}
-static int wpa_driver_nl80211_set_ssid(void *priv, const u8 *ssid,
- size_t ssid_len)
+static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv,
+ struct nlmsghdr *h)
{
- struct wpa_driver_nl80211_data *drv = priv;
- struct iwreq iwr;
- int ret = 0;
- char buf[33];
-
- if (ssid_len > 32)
- return -1;
-
- os_memset(&iwr, 0, sizeof(iwr));
- os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
- /* flags: 1 = ESSID is active, 0 = not (promiscuous) */
- iwr.u.essid.flags = (ssid_len != 0);
- os_memset(buf, 0, sizeof(buf));
- os_memcpy(buf, ssid, ssid_len);
- iwr.u.essid.pointer = (caddr_t) buf;
- if (drv->we_version_compiled < 21) {
- /* For historic reasons, set SSID length to include one extra
- * character, C string nul termination, even though SSID is
- * really an octet string that should not be presented as a C
- * string. Some Linux drivers decrement the length by one and
- * can thus end up missing the last octet of the SSID if the
- * length is not incremented here. WE-21 changes this to
- * explicitly require the length _not_ to include nul
- * termination. */
- if (ssid_len)
- ssid_len++;
- }
- iwr.u.essid.length = ssid_len;
-
- if (ioctl(drv->ioctl_sock, SIOCSIWESSID, &iwr) < 0) {
- perror("ioctl[SIOCSIWESSID]");
- ret = -1;
- }
+ struct ifinfomsg *ifi;
+ int attrlen, _nlmsg_len, rta_len;
+ struct rtattr *attr;
- return ret;
-}
+ ifi = NLMSG_DATA(h);
+ _nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
-static int wpa_driver_nl80211_set_freq(void *priv, int freq)
-{
- struct wpa_driver_nl80211_data *drv = priv;
- struct iwreq iwr;
- int ret = 0;
+ attrlen = h->nlmsg_len - _nlmsg_len;
+ if (attrlen < 0)
+ return 0;
- os_memset(&iwr, 0, sizeof(iwr));
- os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
- iwr.u.freq.m = freq * 100000;
- iwr.u.freq.e = 1;
+ attr = (struct rtattr *) (((char *) ifi) + _nlmsg_len);
- if (ioctl(drv->ioctl_sock, SIOCSIWFREQ, &iwr) < 0) {
- perror("ioctl[SIOCSIWFREQ]");
- ret = -1;
+ rta_len = RTA_ALIGN(sizeof(struct rtattr));
+ while (RTA_OK(attr, attrlen)) {
+ if (attr->rta_type == IFLA_IFNAME) {
+ if (os_strcmp(((char *) attr) + rta_len, drv->ifname)
+ == 0)
+ return 1;
+ else
+ break;
+ }
+ attr = RTA_NEXT(attr, attrlen);
}
- return ret;
+ return 0;
}
-static void
-wpa_driver_nl80211_event_wireless_custom(void *ctx, char *custom)
+static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv,
+ int ifindex, struct nlmsghdr *h)
{
- union wpa_event_data data;
+ if (drv->ifindex == ifindex)
+ return 1;
- wpa_printf(MSG_MSGDUMP, "WEXT: Custom wireless event: '%s'",
- custom);
+ if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, h)) {
+ drv->ifindex = if_nametoindex(drv->ifname);
+ wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed "
+ "interface");
+ wpa_driver_nl80211_finish_drv_init(drv);
+ return 1;
+ }
- os_memset(&data, 0, sizeof(data));
- /* Host AP driver */
- if (os_strncmp(custom, "MLME-MICHAELMICFAILURE.indication", 33) == 0) {
- data.michael_mic_failure.unicast =
- os_strstr(custom, " unicast ") != NULL;
- /* TODO: parse parameters(?) */
- wpa_supplicant_event(ctx, EVENT_MICHAEL_MIC_FAILURE, &data);
- } else if (os_strncmp(custom, "ASSOCINFO(ReqIEs=", 17) == 0) {
- char *spos;
- int bytes;
-
- spos = custom + 17;
-
- bytes = strspn(spos, "0123456789abcdefABCDEF");
- if (!bytes || (bytes & 1))
- return;
- bytes /= 2;
+ return 0;
+}
- data.assoc_info.req_ies = os_malloc(bytes);
- if (data.assoc_info.req_ies == NULL)
- return;
- data.assoc_info.req_ies_len = bytes;
- hexstr2bin(spos, data.assoc_info.req_ies, bytes);
+static void wpa_driver_nl80211_event_rtm_newlink(struct wpa_driver_nl80211_data *drv,
+ void *ctx, struct nlmsghdr *h,
+ size_t len)
+{
+ struct ifinfomsg *ifi;
+ int attrlen, _nlmsg_len, rta_len;
+ struct rtattr * attr;
- spos += bytes * 2;
+ if (len < sizeof(*ifi))
+ return;
- data.assoc_info.resp_ies = NULL;
- data.assoc_info.resp_ies_len = 0;
+ ifi = NLMSG_DATA(h);
- if (os_strncmp(spos, " RespIEs=", 9) == 0) {
- spos += 9;
+ if (!wpa_driver_nl80211_own_ifindex(drv, ifi->ifi_index, h)) {
+ wpa_printf(MSG_DEBUG, "Ignore event for foreign ifindex %d",
+ ifi->ifi_index);
+ return;
+ }
- bytes = strspn(spos, "0123456789abcdefABCDEF");
- if (!bytes || (bytes & 1))
- goto done;
- bytes /= 2;
+ wpa_printf(MSG_DEBUG, "RTM_NEWLINK: operstate=%d ifi_flags=0x%x "
+ "(%s%s%s%s)",
+ drv->operstate, ifi->ifi_flags,
+ (ifi->ifi_flags & IFF_UP) ? "[UP]" : "",
+ (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "",
+ (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "",
+ (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : "");
+ /*
+ * Some drivers send the association event before the operup event--in
+ * this case, lifting operstate in wpa_driver_nl80211_set_operstate()
+ * fails. This will hit us when wpa_supplicant does not need to do
+ * IEEE 802.1X authentication
+ */
+ if (drv->operstate == 1 &&
+ (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP &&
+ !(ifi->ifi_flags & IFF_RUNNING))
+ wpa_driver_nl80211_send_oper_ifla(drv, -1, IF_OPER_UP);
- data.assoc_info.resp_ies = os_malloc(bytes);
- if (data.assoc_info.resp_ies == NULL)
- goto done;
+ _nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
- data.assoc_info.resp_ies_len = bytes;
- hexstr2bin(spos, data.assoc_info.resp_ies, bytes);
- }
+ attrlen = h->nlmsg_len - _nlmsg_len;
+ if (attrlen < 0)
+ return;
- wpa_supplicant_event(ctx, EVENT_ASSOCINFO, &data);
+ attr = (struct rtattr *) (((char *) ifi) + _nlmsg_len);
- done:
- os_free(data.assoc_info.resp_ies);
- os_free(data.assoc_info.req_ies);
-#ifdef CONFIG_PEERKEY
- } else if (os_strncmp(custom, "STKSTART.request=", 17) == 0) {
- if (hwaddr_aton(custom + 17, data.stkstart.peer)) {
- wpa_printf(MSG_DEBUG, "WEXT: unrecognized "
- "STKSTART.request '%s'", custom + 17);
- return;
+ rta_len = RTA_ALIGN(sizeof(struct rtattr));
+ while (RTA_OK(attr, attrlen)) {
+ if (attr->rta_type == IFLA_IFNAME) {
+ wpa_driver_nl80211_event_link(
+ drv, ctx,
+ ((char *) attr) + rta_len,
+ attr->rta_len - rta_len, 0);
}
- wpa_supplicant_event(ctx, EVENT_STKSTART, &data);
-#endif /* CONFIG_PEERKEY */
+ attr = RTA_NEXT(attr, attrlen);
}
}
-static int wpa_driver_nl80211_event_wireless_michaelmicfailure(
- void *ctx, const char *ev, size_t len)
+static void wpa_driver_nl80211_event_rtm_dellink(struct wpa_driver_nl80211_data *drv,
+ void *ctx, struct nlmsghdr *h,
+ size_t len)
{
- const struct iw_michaelmicfailure *mic;
- union wpa_event_data data;
+ struct ifinfomsg *ifi;
+ int attrlen, _nlmsg_len, rta_len;
+ struct rtattr * attr;
- if (len < sizeof(*mic))
- return -1;
+ if (len < sizeof(*ifi))
+ return;
- mic = (const struct iw_michaelmicfailure *) ev;
+ ifi = NLMSG_DATA(h);
- wpa_printf(MSG_DEBUG, "Michael MIC failure wireless event: "
- "flags=0x%x src_addr=" MACSTR, mic->flags,
- MAC2STR(mic->src_addr.sa_data));
+ _nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
- os_memset(&data, 0, sizeof(data));
- data.michael_mic_failure.unicast = !(mic->flags & IW_MICFAILURE_GROUP);
- wpa_supplicant_event(ctx, EVENT_MICHAEL_MIC_FAILURE, &data);
+ attrlen = h->nlmsg_len - _nlmsg_len;
+ if (attrlen < 0)
+ return;
- return 0;
+ attr = (struct rtattr *) (((char *) ifi) + _nlmsg_len);
+
+ rta_len = RTA_ALIGN(sizeof(struct rtattr));
+ while (RTA_OK(attr, attrlen)) {
+ if (attr->rta_type == IFLA_IFNAME) {
+ wpa_driver_nl80211_event_link(
+ drv, ctx,
+ ((char *) attr) + rta_len,
+ attr->rta_len - rta_len, 1);
+ }
+ attr = RTA_NEXT(attr, attrlen);
+ }
}
-static int wpa_driver_nl80211_event_wireless_pmkidcand(
- struct wpa_driver_nl80211_data *drv, const char *ev, size_t len)
+static void wpa_driver_nl80211_event_receive_link(int sock, void *eloop_ctx,
+ void *sock_ctx)
{
- const struct iw_pmkid_cand *cand;
- union wpa_event_data data;
- const u8 *addr;
-
- if (len < sizeof(*cand))
- return -1;
-
- cand = (const struct iw_pmkid_cand *) ev;
- addr = (const u8 *) cand->bssid.sa_data;
+ char buf[8192];
+ int left;
+ struct sockaddr_nl from;
+ socklen_t fromlen;
+ struct nlmsghdr *h;
+ int max_events = 10;
- wpa_printf(MSG_DEBUG, "PMKID candidate wireless event: "
- "flags=0x%x index=%d bssid=" MACSTR, cand->flags,
- cand->index, MAC2STR(addr));
+try_again:
+ fromlen = sizeof(from);
+ left = recvfrom(sock, buf, sizeof(buf), MSG_DONTWAIT,
+ (struct sockaddr *) &from, &fromlen);
+ if (left < 0) {
+ if (errno != EINTR && errno != EAGAIN)
+ perror("recvfrom(netlink)");
+ return;
+ }
- os_memset(&data, 0, sizeof(data));
- os_memcpy(data.pmkid_candidate.bssid, addr, ETH_ALEN);
- data.pmkid_candidate.index = cand->index;
- data.pmkid_candidate.preauth = cand->flags & IW_PMKID_CAND_PREAUTH;
- wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data);
+ h = (struct nlmsghdr *) buf;
+ while (left >= (int) sizeof(*h)) {
+ int len, plen;
- return 0;
-}
+ len = h->nlmsg_len;
+ plen = len - sizeof(*h);
+ if (len > left || plen < 0) {
+ wpa_printf(MSG_DEBUG, "Malformed netlink message: "
+ "len=%d left=%d plen=%d",
+ len, left, plen);
+ break;
+ }
+ switch (h->nlmsg_type) {
+ case RTM_NEWLINK:
+ wpa_driver_nl80211_event_rtm_newlink(eloop_ctx, sock_ctx,
+ h, plen);
+ break;
+ case RTM_DELLINK:
+ wpa_driver_nl80211_event_rtm_dellink(eloop_ctx, sock_ctx,
+ h, plen);
+ break;
+ }
-static int wpa_driver_nl80211_event_wireless_assocreqie(
- struct wpa_driver_nl80211_data *drv, const char *ev, int len)
-{
- if (len < 0)
- return -1;
+ len = NLMSG_ALIGN(len);
+ left -= len;
+ h = (struct nlmsghdr *) ((char *) h + len);
+ }
- wpa_hexdump(MSG_DEBUG, "AssocReq IE wireless event", (const u8 *) ev,
- len);
- os_free(drv->assoc_req_ies);
- drv->assoc_req_ies = os_malloc(len);
- if (drv->assoc_req_ies == NULL) {
- drv->assoc_req_ies_len = 0;
- return -1;
+ if (left > 0) {
+ wpa_printf(MSG_DEBUG, "%d extra bytes in the end of netlink "
+ "message", left);
}
- os_memcpy(drv->assoc_req_ies, ev, len);
- drv->assoc_req_ies_len = len;
- return 0;
+ if (--max_events > 0) {
+ /*
+ * Try to receive all events in one eloop call in order to
+ * limit race condition on cases where AssocInfo event, Assoc
+ * event, and EAPOL frames are received more or less at the
+ * same time. We want to process the event messages first
+ * before starting EAPOL processing.
+ */
+ goto try_again;
+ }
}
-static int wpa_driver_nl80211_event_wireless_assocrespie(
- struct wpa_driver_nl80211_data *drv, const char *ev, int len)
+static void mlme_event_auth(struct wpa_driver_nl80211_data *drv,
+ const u8 *frame, size_t len)
{
- if (len < 0)
- return -1;
+ const struct ieee80211_mgmt *mgmt;
+ union wpa_event_data event;
- wpa_hexdump(MSG_DEBUG, "AssocResp IE wireless event", (const u8 *) ev,
- len);
- os_free(drv->assoc_resp_ies);
- drv->assoc_resp_ies = os_malloc(len);
- if (drv->assoc_resp_ies == NULL) {
- drv->assoc_resp_ies_len = 0;
- return -1;
+ mgmt = (const struct ieee80211_mgmt *) frame;
+ if (len < 24 + sizeof(mgmt->u.auth)) {
+ wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
+ "frame");
+ return;
}
- os_memcpy(drv->assoc_resp_ies, ev, len);
- drv->assoc_resp_ies_len = len;
- return 0;
+ os_memset(&event, 0, sizeof(event));
+ os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN);
+ event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg);
+ event.auth.status_code = le_to_host16(mgmt->u.auth.status_code);
+ if (len > 24 + sizeof(mgmt->u.auth)) {
+ event.auth.ies = mgmt->u.auth.variable;
+ event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth);
+ }
+
+ wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event);
}
-static void wpa_driver_nl80211_event_assoc_ies(struct wpa_driver_nl80211_data *drv)
+static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv,
+ const u8 *frame, size_t len)
{
- union wpa_event_data data;
+ const struct ieee80211_mgmt *mgmt;
+ union wpa_event_data event;
+ u16 status;
- if (drv->assoc_req_ies == NULL && drv->assoc_resp_ies == NULL)
+ mgmt = (const struct ieee80211_mgmt *) frame;
+ if (len < 24 + sizeof(mgmt->u.assoc_resp)) {
+ wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
+ "frame");
return;
-
- os_memset(&data, 0, sizeof(data));
- if (drv->assoc_req_ies) {
- data.assoc_info.req_ies = drv->assoc_req_ies;
- drv->assoc_req_ies = NULL;
- data.assoc_info.req_ies_len = drv->assoc_req_ies_len;
}
- if (drv->assoc_resp_ies) {
- data.assoc_info.resp_ies = drv->assoc_resp_ies;
- drv->assoc_resp_ies = NULL;
- data.assoc_info.resp_ies_len = drv->assoc_resp_ies_len;
+
+ status = le_to_host16(mgmt->u.assoc_resp.status_code);
+ if (status != WLAN_STATUS_SUCCESS) {
+ os_memset(&event, 0, sizeof(event));
+ if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
+ event.assoc_reject.resp_ies =
+ (u8 *) mgmt->u.assoc_resp.variable;
+ event.assoc_reject.resp_ies_len =
+ len - 24 - sizeof(mgmt->u.assoc_resp);
+ }
+ event.assoc_reject.status_code = status;
+
+ wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
+ return;
}
- wpa_supplicant_event(drv->ctx, EVENT_ASSOCINFO, &data);
+ drv->associated = 1;
+ os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN);
+
+ os_memset(&event, 0, sizeof(event));
+ if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
+ event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable;
+ event.assoc_info.resp_ies_len =
+ len - 24 - sizeof(mgmt->u.assoc_resp);
+ }
- os_free(data.assoc_info.req_ies);
- os_free(data.assoc_info.resp_ies);
+ wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
}
-static void wpa_driver_nl80211_event_wireless(struct wpa_driver_nl80211_data *drv,
- void *ctx, char *data, int len)
+static void mlme_event(struct wpa_driver_nl80211_data *drv,
+ enum nl80211_commands cmd, struct nlattr *frame)
{
- struct iw_event iwe_buf, *iwe = &iwe_buf;
- char *pos, *end, *custom, *buf;
+ if (frame == NULL) {
+ wpa_printf(MSG_DEBUG, "nl80211: MLME event %d without frame "
+ "data", cmd);
+ return;
+ }
- pos = data;
- end = data + len;
+ wpa_printf(MSG_DEBUG, "nl80211: MLME event %d", cmd);
+ wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame",
+ nla_data(frame), nla_len(frame));
+
+ switch (cmd) {
+ case NL80211_CMD_AUTHENTICATE:
+ mlme_event_auth(drv, nla_data(frame), nla_len(frame));
+ break;
+ case NL80211_CMD_ASSOCIATE:
+ mlme_event_assoc(drv, nla_data(frame), nla_len(frame));
+ break;
+ case NL80211_CMD_DEAUTHENTICATE:
+ drv->associated = 0;
+ wpa_supplicant_event(drv->ctx, EVENT_DEAUTH, NULL);
+ break;
+ case NL80211_CMD_DISASSOCIATE:
+ drv->associated = 0;
+ wpa_supplicant_event(drv->ctx, EVENT_DISASSOC, NULL);
+ break;
+ default:
+ break;
+ }
+}
- while (pos + IW_EV_LCP_LEN <= end) {
- /* Event data may be unaligned, so make a local, aligned copy
- * before processing. */
- os_memcpy(&iwe_buf, pos, IW_EV_LCP_LEN);
- wpa_printf(MSG_DEBUG, "Wireless event: cmd=0x%x len=%d",
- iwe->cmd, iwe->len);
- if (iwe->len <= IW_EV_LCP_LEN)
- return;
+#endif /* HOSTAPD */
- custom = pos + IW_EV_POINT_LEN;
- if (drv->we_version_compiled > 18 &&
- (iwe->cmd == IWEVMICHAELMICFAILURE ||
- iwe->cmd == IWEVCUSTOM ||
- iwe->cmd == IWEVASSOCREQIE ||
- iwe->cmd == IWEVASSOCRESPIE ||
- iwe->cmd == IWEVPMKIDCAND)) {
- /* WE-19 removed the pointer from struct iw_point */
- char *dpos = (char *) &iwe_buf.u.data.length;
- int dlen = dpos - (char *) &iwe_buf;
- os_memcpy(dpos, pos + IW_EV_LCP_LEN,
- sizeof(struct iw_event) - dlen);
- } else {
- os_memcpy(&iwe_buf, pos, sizeof(struct iw_event));
- custom += IW_EV_POINT_OFF;
- }
- switch (iwe->cmd) {
- case SIOCGIWAP:
- wpa_printf(MSG_DEBUG, "Wireless event: new AP: "
- MACSTR,
- MAC2STR((u8 *) iwe->u.ap_addr.sa_data));
- if (is_zero_ether_addr(
- (const u8 *) iwe->u.ap_addr.sa_data) ||
- os_memcmp(iwe->u.ap_addr.sa_data,
- "\x44\x44\x44\x44\x44\x44", ETH_ALEN) ==
- 0) {
- os_free(drv->assoc_req_ies);
- drv->assoc_req_ies = NULL;
- os_free(drv->assoc_resp_ies);
- drv->assoc_resp_ies = NULL;
- wpa_supplicant_event(ctx, EVENT_DISASSOC,
- NULL);
-
- } else {
- wpa_driver_nl80211_event_assoc_ies(drv);
- wpa_supplicant_event(ctx, EVENT_ASSOC, NULL);
- }
- break;
- case IWEVMICHAELMICFAILURE:
- wpa_driver_nl80211_event_wireless_michaelmicfailure(
- ctx, custom, iwe->u.data.length);
- break;
- case IWEVCUSTOM:
- if (custom + iwe->u.data.length > end)
- return;
- buf = os_malloc(iwe->u.data.length + 1);
- if (buf == NULL)
- return;
- os_memcpy(buf, custom, iwe->u.data.length);
- buf[iwe->u.data.length] = '\0';
- wpa_driver_nl80211_event_wireless_custom(ctx, buf);
- os_free(buf);
- break;
- case SIOCGIWSCAN:
- drv->scan_complete_events = 1;
- eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout,
- drv, ctx);
- wpa_supplicant_event(ctx, EVENT_SCAN_RESULTS, NULL);
- break;
- case IWEVASSOCREQIE:
- wpa_driver_nl80211_event_wireless_assocreqie(
- drv, custom, iwe->u.data.length);
- break;
- case IWEVASSOCRESPIE:
- wpa_driver_nl80211_event_wireless_assocrespie(
- drv, custom, iwe->u.data.length);
- break;
- case IWEVPMKIDCAND:
- wpa_driver_nl80211_event_wireless_pmkidcand(
- drv, custom, iwe->u.data.length);
- break;
- }
+static void mlme_event_michael_mic_failure(struct wpa_driver_nl80211_data *drv,
+ struct nlattr *tb[])
+{
+#ifdef HOSTAPD
+ if (tb[NL80211_ATTR_MAC])
+ hostapd_michael_mic_failure(drv->hapd,
+ nla_data(tb[NL80211_ATTR_MAC]));
+#else /* HOSTAPD */
+ union wpa_event_data data;
- pos += iwe->len;
+ wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure");
+ os_memset(&data, 0, sizeof(data));
+ if (tb[NL80211_ATTR_MAC]) {
+ wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address",
+ nla_data(tb[NL80211_ATTR_MAC]),
+ nla_len(tb[NL80211_ATTR_MAC]));
+ }
+ if (tb[NL80211_ATTR_KEY_SEQ]) {
+ wpa_hexdump(MSG_DEBUG, "nl80211: TSC",
+ nla_data(tb[NL80211_ATTR_KEY_SEQ]),
+ nla_len(tb[NL80211_ATTR_KEY_SEQ]));
+ }
+ if (tb[NL80211_ATTR_KEY_TYPE]) {
+ enum nl80211_key_type key_type =
+ nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]);
+ wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type);
+ if (key_type == NL80211_KEYTYPE_PAIRWISE)
+ data.michael_mic_failure.unicast = 1;
+ } else
+ data.michael_mic_failure.unicast = 1;
+
+ if (tb[NL80211_ATTR_KEY_IDX]) {
+ u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]);
+ wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id);
}
+
+ wpa_supplicant_event(drv->ctx, EVENT_MICHAEL_MIC_FAILURE, &data);
+#endif /* HOSTAPD */
}
-static void wpa_driver_nl80211_event_link(struct wpa_driver_nl80211_data *drv,
- void *ctx, char *buf, size_t len,
- int del)
+static int process_event(struct nl_msg *msg, void *arg)
{
- union wpa_event_data event;
+ struct wpa_driver_nl80211_data *drv = arg;
+ struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
+ struct nlattr *tb[NL80211_ATTR_MAX + 1];
- os_memset(&event, 0, sizeof(event));
- if (len > sizeof(event.interface_status.ifname))
- len = sizeof(event.interface_status.ifname) - 1;
- os_memcpy(event.interface_status.ifname, buf, len);
- event.interface_status.ievent = del ? EVENT_INTERFACE_REMOVED :
- EVENT_INTERFACE_ADDED;
+ nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
+ genlmsg_attrlen(gnlh, 0), NULL);
- wpa_printf(MSG_DEBUG, "RTM_%sLINK, IFLA_IFNAME: Interface '%s' %s",
- del ? "DEL" : "NEW",
- event.interface_status.ifname,
- del ? "removed" : "added");
+ if (tb[NL80211_ATTR_IFINDEX]) {
+ int ifindex = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
+ if (ifindex != drv->ifindex) {
+ wpa_printf(MSG_DEBUG, "nl80211: Ignored event (cmd=%d)"
+ " for foreign interface (ifindex %d)",
+ gnlh->cmd, ifindex);
+ return NL_SKIP;
+ }
+ }
- if (os_strcmp(drv->ifname, event.interface_status.ifname) == 0) {
- if (del)
- drv->if_removed = 1;
- else
- drv->if_removed = 0;
+ switch (gnlh->cmd) {
+#ifndef HOSTAPD
+ case NL80211_CMD_NEW_SCAN_RESULTS:
+ wpa_printf(MSG_DEBUG, "nl80211: New scan results available");
+ drv->scan_complete_events = 1;
+ eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
+ drv->ctx);
+ wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, NULL);
+ break;
+ case NL80211_CMD_SCAN_ABORTED:
+ wpa_printf(MSG_DEBUG, "nl80211: Scan aborted");
+ /*
+ * Need to indicate that scan results are available in order
+ * not to make wpa_supplicant stop its scanning.
+ */
+ eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
+ drv->ctx);
+ wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, NULL);
+ break;
+ case NL80211_CMD_AUTHENTICATE:
+ case NL80211_CMD_ASSOCIATE:
+ case NL80211_CMD_DEAUTHENTICATE:
+ case NL80211_CMD_DISASSOCIATE:
+ mlme_event(drv, gnlh->cmd, tb[NL80211_ATTR_FRAME]);
+ break;
+#endif /* HOSTAPD */
+ case NL80211_CMD_MICHAEL_MIC_FAILURE:
+ mlme_event_michael_mic_failure(drv, tb);
+ break;
+ default:
+ wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event "
+ "(cmd=%d)", gnlh->cmd);
+ break;
}
- wpa_supplicant_event(ctx, EVENT_INTERFACE_STATUS, &event);
+ return NL_SKIP;
}
-static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv,
- struct nlmsghdr *h)
+static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx,
+ void *sock_ctx)
{
- struct ifinfomsg *ifi;
- int attrlen, _nlmsg_len, rta_len;
- struct rtattr *attr;
+ struct nl_cb *cb;
+ struct wpa_driver_nl80211_data *drv = eloop_ctx;
- ifi = NLMSG_DATA(h);
+ wpa_printf(MSG_DEBUG, "nl80211: Event message available");
- _nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
+ cb = nl_cb_clone(drv->nl_cb);
+ if (!cb)
+ return;
+ nl_cb_set(cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL);
+ nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, process_event, drv);
+ nl_recvmsgs(drv->nl_handle, cb);
+ nl_cb_put(cb);
+}
- attrlen = h->nlmsg_len - _nlmsg_len;
- if (attrlen < 0)
- return 0;
- attr = (struct rtattr *) (((char *) ifi) + _nlmsg_len);
+static int wpa_driver_nl80211_get_ifflags_ifname(struct wpa_driver_nl80211_data *drv,
+ const char *ifname, int *flags)
+{
+ struct ifreq ifr;
- rta_len = RTA_ALIGN(sizeof(struct rtattr));
- while (RTA_OK(attr, attrlen)) {
- if (attr->rta_type == IFLA_IFNAME) {
- if (os_strcmp(((char *) attr) + rta_len, drv->ifname)
- == 0)
- return 1;
- else
- break;
- }
- attr = RTA_NEXT(attr, attrlen);
+ os_memset(&ifr, 0, sizeof(ifr));
+ os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
+ if (ioctl(drv->ioctl_sock, SIOCGIFFLAGS, (caddr_t) &ifr) < 0) {
+ perror("ioctl[SIOCGIFFLAGS]");
+ return -1;
}
-
+ *flags = ifr.ifr_flags & 0xffff;
return 0;
}
-static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv,
- int ifindex, struct nlmsghdr *h)
+/**
+ * wpa_driver_nl80211_get_ifflags - Get interface flags (SIOCGIFFLAGS)
+ * @drv: driver_nl80211 private data
+ * @flags: Pointer to returned flags value
+ * Returns: 0 on success, -1 on failure
+ */
+static int wpa_driver_nl80211_get_ifflags(struct wpa_driver_nl80211_data *drv,
+ int *flags)
{
- if (drv->ifindex == ifindex)
- return 1;
+ return wpa_driver_nl80211_get_ifflags_ifname(drv, drv->ifname, flags);
+}
- if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, h)) {
- drv->ifindex = if_nametoindex(drv->ifname);
- wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed "
- "interface");
- wpa_driver_nl80211_finish_drv_init(drv);
- return 1;
- }
+static int wpa_driver_nl80211_set_ifflags_ifname(
+ struct wpa_driver_nl80211_data *drv,
+ const char *ifname, int flags)
+{
+ struct ifreq ifr;
+
+ os_memset(&ifr, 0, sizeof(ifr));
+ os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
+ ifr.ifr_flags = flags & 0xffff;
+ if (ioctl(drv->ioctl_sock, SIOCSIFFLAGS, (caddr_t) &ifr) < 0) {
+ perror("SIOCSIFFLAGS");
+ return -1;
+ }
return 0;
}
-static void wpa_driver_nl80211_event_rtm_newlink(struct wpa_driver_nl80211_data *drv,
- void *ctx, struct nlmsghdr *h,
- size_t len)
+/**
+ * wpa_driver_nl80211_set_ifflags - Set interface flags (SIOCSIFFLAGS)
+ * @drv: driver_nl80211 private data
+ * @flags: New value for flags
+ * Returns: 0 on success, -1 on failure
+ */
+static int wpa_driver_nl80211_set_ifflags(struct wpa_driver_nl80211_data *drv,
+ int flags)
{
- struct ifinfomsg *ifi;
- int attrlen, _nlmsg_len, rta_len;
- struct rtattr * attr;
-
- if (len < sizeof(*ifi))
- return;
+ return wpa_driver_nl80211_set_ifflags_ifname(drv, drv->ifname, flags);
+}
- ifi = NLMSG_DATA(h);
- if (!wpa_driver_nl80211_own_ifindex(drv, ifi->ifi_index, h)) {
- wpa_printf(MSG_DEBUG, "Ignore event for foreign ifindex %d",
- ifi->ifi_index);
- return;
+/**
+ * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain
+ * @priv: driver_nl80211 private data
+ * @alpha2_arg: country to which to switch to
+ * Returns: 0 on success, -1 on failure
+ *
+ * This asks nl80211 to set the regulatory domain for given
+ * country ISO / IEC alpha2.
+ */
+static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+ char alpha2[3];
+ struct nl_msg *msg;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
+
+ alpha2[0] = alpha2_arg[0];
+ alpha2[1] = alpha2_arg[1];
+ alpha2[2] = '\0';
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, NL80211_CMD_REQ_SET_REG, 0);
+
+ NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2);
+ if (send_and_recv_msgs(drv, msg, NULL, NULL))
+ return -EINVAL;
+ return 0;
+nla_put_failure:
+ return -EINVAL;
+}
+
+
+struct wiphy_info_data {
+ int max_scan_ssids;
+ int ap_supported;
+};
+
+
+static int wiphy_info_handler(struct nl_msg *msg, void *arg)
+{
+ struct nlattr *tb[NL80211_ATTR_MAX + 1];
+ struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
+ struct wiphy_info_data *info = arg;
+
+ nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
+ genlmsg_attrlen(gnlh, 0), NULL);
+
+ if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS])
+ info->max_scan_ssids =
+ nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]);
+
+ if (tb[NL80211_ATTR_SUPPORTED_IFTYPES]) {
+ struct nlattr *nl_mode;
+ int i;
+ nla_for_each_nested(nl_mode,
+ tb[NL80211_ATTR_SUPPORTED_IFTYPES], i) {
+ if (nl_mode->nla_type == NL80211_IFTYPE_AP) {
+ info->ap_supported = 1;
+ break;
+ }
+ }
+ }
+
+ return NL_SKIP;
+}
+
+
+static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv,
+ struct wiphy_info_data *info)
+{
+ struct nl_msg *msg;
+
+ os_memset(info, 0, sizeof(*info));
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -1;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, NL80211_CMD_GET_WIPHY, 0);
+
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+
+ if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info) == 0)
+ return 0;
+ msg = NULL;
+nla_put_failure:
+ nlmsg_free(msg);
+ return -1;
+}
+
+
+static void wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv)
+{
+ struct wiphy_info_data info;
+ if (wpa_driver_nl80211_get_info(drv, &info))
+ return;
+ drv->has_capability = 1;
+ /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */
+ drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
+ WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
+ WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
+ WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
+ drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 |
+ WPA_DRIVER_CAPA_ENC_WEP104 |
+ WPA_DRIVER_CAPA_ENC_TKIP |
+ WPA_DRIVER_CAPA_ENC_CCMP;
+
+ drv->capa.max_scan_ssids = info.max_scan_ssids;
+ if (info.ap_supported)
+ drv->capa.flags |= WPA_DRIVER_FLAGS_AP;
+}
+
+
+/**
+ * wpa_driver_nl80211_init - Initialize nl80211 driver interface
+ * @ctx: context to be used when calling wpa_supplicant functions,
+ * e.g., wpa_supplicant_event()
+ * @ifname: interface name, e.g., wlan0
+ * Returns: Pointer to private data, %NULL on failure
+ */
+static void * wpa_driver_nl80211_init(void *ctx, const char *ifname)
+{
+ int s, ret;
+ struct sockaddr_nl local;
+ struct wpa_driver_nl80211_data *drv;
+
+ drv = os_zalloc(sizeof(*drv));
+ if (drv == NULL)
+ return NULL;
+ drv->ctx = ctx;
+ os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname));
+#ifdef CONFIG_AP
+ drv->monitor_ifidx = -1;
+ drv->monitor_sock = -1;
+#endif /* CONFIG_AP */
+
+ drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
+ if (drv->nl_cb == NULL) {
+ wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
+ "callbacks");
+ goto err1;
+ }
+
+ drv->nl_handle = nl_handle_alloc_cb(drv->nl_cb);
+ if (drv->nl_handle == NULL) {
+ wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
+ "callbacks");
+ goto err2;
+ }
+
+ if (genl_connect(drv->nl_handle)) {
+ wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic "
+ "netlink");
+ goto err3;
+ }
+
+ drv->nl_cache = genl_ctrl_alloc_cache(drv->nl_handle);
+ if (drv->nl_cache == NULL) {
+ wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
+ "netlink cache");
+ goto err3;
+ }
+
+ drv->nl80211 = genl_ctrl_search_by_name(drv->nl_cache, "nl80211");
+ if (drv->nl80211 == NULL) {
+ wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not "
+ "found");
+ goto err4;
+ }
+
+ ret = nl_get_multicast_id(drv, "nl80211", "scan");
+ if (ret >= 0)
+ ret = nl_socket_add_membership(drv->nl_handle, ret);
+ if (ret < 0) {
+ wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
+ "membership for scan events: %d (%s)",
+ ret, strerror(-ret));
+ goto err4;
+ }
+
+ ret = nl_get_multicast_id(drv, "nl80211", "mlme");
+ if (ret >= 0)
+ ret = nl_socket_add_membership(drv->nl_handle, ret);
+ if (ret < 0) {
+ wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
+ "membership for mlme events: %d (%s)",
+ ret, strerror(-ret));
+ goto err4;
+ }
+ drv->capa.flags |= WPA_DRIVER_FLAGS_SME;
+
+ eloop_register_read_sock(nl_socket_get_fd(drv->nl_handle),
+ wpa_driver_nl80211_event_receive, drv, ctx);
+
+ drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
+ if (drv->ioctl_sock < 0) {
+ perror("socket(PF_INET,SOCK_DGRAM)");
+ goto err5;
+ }
+
+ s = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
+ if (s < 0) {
+ perror("socket(PF_NETLINK,SOCK_RAW,NETLINK_ROUTE)");
+ goto err6;
+ }
+
+ os_memset(&local, 0, sizeof(local));
+ local.nl_family = AF_NETLINK;
+ local.nl_groups = RTMGRP_LINK;
+ if (bind(s, (struct sockaddr *) &local, sizeof(local)) < 0) {
+ perror("bind(netlink)");
+ close(s);
+ goto err6;
+ }
+
+#ifndef HOSTAPD
+ eloop_register_read_sock(s, wpa_driver_nl80211_event_receive_link, drv,
+ ctx);
+#endif /* HOSTAPD */
+ drv->link_event_sock = s;
+
+ if (wpa_driver_nl80211_finish_drv_init(drv))
+ goto err7;
+
+ return drv;
+
+err7:
+ eloop_unregister_read_sock(drv->link_event_sock);
+ close(drv->link_event_sock);
+err6:
+ close(drv->ioctl_sock);
+err5:
+ genl_family_put(drv->nl80211);
+err4:
+ nl_cache_free(drv->nl_cache);
+err3:
+ nl_handle_destroy(drv->nl_handle);
+err2:
+ nl_cb_put(drv->nl_cb);
+err1:
+ os_free(drv);
+ return NULL;
+}
+
+
+static int
+wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv)
+{
+ int flags;
+
+ drv->ifindex = if_nametoindex(drv->ifname);
+
+ if (wpa_driver_nl80211_set_mode(drv, 0) < 0) {
+ wpa_printf(MSG_DEBUG, "nl80211: Could not configure driver to "
+ "use managed mode");
+ }
+
+ if (wpa_driver_nl80211_get_ifflags(drv, &flags) != 0) {
+ wpa_printf(MSG_ERROR, "Could not get interface '%s' flags",
+ drv->ifname);
+ return -1;
+ }
+ if (!(flags & IFF_UP)) {
+ if (wpa_driver_nl80211_set_ifflags(drv, flags | IFF_UP) != 0) {
+ wpa_printf(MSG_ERROR, "Could not set interface '%s' "
+ "UP", drv->ifname);
+ return -1;
+ }
+ }
+
+ wpa_driver_nl80211_capa(drv);
+
+ wpa_driver_nl80211_send_oper_ifla(drv, 1, IF_OPER_DORMANT);
+
+ return 0;
+}
+
+
+/**
+ * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface
+ * @priv: Pointer to private nl80211 data from wpa_driver_nl80211_init()
+ *
+ * Shut down driver interface and processing of driver events. Free
+ * private data buffer if one was allocated in wpa_driver_nl80211_init().
+ */
+static void wpa_driver_nl80211_deinit(void *priv)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+ int flags;
+
+#ifdef CONFIG_AP
+ if (drv->monitor_ifidx >= 0)
+ nl80211_remove_iface(drv, drv->monitor_ifidx);
+ if (drv->monitor_sock >= 0) {
+ eloop_unregister_read_sock(drv->monitor_sock);
+ close(drv->monitor_sock);
+ }
+#endif /* CONFIG_AP */
+
+ eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
+
+ wpa_driver_nl80211_set_auth_param(drv, IW_AUTH_DROP_UNENCRYPTED, 0);
+
+ wpa_driver_nl80211_send_oper_ifla(priv, 0, IF_OPER_UP);
+
+ eloop_unregister_read_sock(drv->link_event_sock);
+
+ if (wpa_driver_nl80211_get_ifflags(drv, &flags) == 0)
+ (void) wpa_driver_nl80211_set_ifflags(drv, flags & ~IFF_UP);
+ wpa_driver_nl80211_set_mode(drv, 0);
+
+ close(drv->link_event_sock);
+ close(drv->ioctl_sock);
+
+ eloop_unregister_read_sock(nl_socket_get_fd(drv->nl_handle));
+ genl_family_put(drv->nl80211);
+ nl_cache_free(drv->nl_cache);
+ nl_handle_destroy(drv->nl_handle);
+ nl_cb_put(drv->nl_cb);
+
+ os_free(drv);
+}
+
+
+/**
+ * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion
+ * @eloop_ctx: Unused
+ * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init()
+ *
+ * This function can be used as registered timeout when starting a scan to
+ * generate a scan completed event if the driver does not report this.
+ */
+static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx)
+{
+ wpa_printf(MSG_DEBUG, "Scan timeout - try to get results");
+#ifndef HOSTAPD
+ wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL);
+#endif /* HOSTAPD */
+}
+
+
+/**
+ * wpa_driver_nl80211_scan - Request the driver to initiate scan
+ * @priv: Pointer to private wext data from wpa_driver_nl80211_init()
+ * @params: Scan parameters
+ * Returns: 0 on success, -1 on failure
+ */
+static int wpa_driver_nl80211_scan(void *priv,
+ struct wpa_driver_scan_params *params)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+ int ret = 0, timeout;
+ struct nl_msg *msg, *ssids, *freqs;
+ size_t i;
+
+ msg = nlmsg_alloc();
+ ssids = nlmsg_alloc();
+ freqs = nlmsg_alloc();
+ if (!msg || !ssids || !freqs) {
+ nlmsg_free(msg);
+ nlmsg_free(ssids);
+ nlmsg_free(freqs);
+ return -1;
+ }
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
+ NL80211_CMD_TRIGGER_SCAN, 0);
+
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+
+ for (i = 0; i < params->num_ssids; i++) {
+ NLA_PUT(ssids, i + 1, params->ssids[i].ssid_len,
+ params->ssids[i].ssid);
+ }
+ if (params->num_ssids)
+ nla_put_nested(msg, NL80211_ATTR_SCAN_SSIDS, ssids);
+
+ if (params->extra_ies) {
+ NLA_PUT(msg, NL80211_ATTR_IE, params->extra_ies_len,
+ params->extra_ies);
+ }
+
+ if (params->freqs) {
+ for (i = 0; params->freqs[i]; i++)
+ NLA_PUT_U32(freqs, i + 1, params->freqs[i]);
+ nla_put_nested(msg, NL80211_ATTR_SCAN_FREQUENCIES, freqs);
+ }
+
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ msg = NULL;
+ if (ret) {
+ wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d "
+ "(%s)", ret, strerror(-ret));
+ goto nla_put_failure;
+ }
+
+ /* Not all drivers generate "scan completed" wireless event, so try to
+ * read results after a timeout. */
+ timeout = 10;
+ if (drv->scan_complete_events) {
+ /*
+ * The driver seems to deliver events to notify when scan is
+ * complete, so use longer timeout to avoid race conditions
+ * with scanning and following association request.
+ */
+ timeout = 30;
+ }
+ wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d "
+ "seconds", ret, timeout);
+ eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
+ eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout,
+ drv, drv->ctx);
+
+nla_put_failure:
+ nlmsg_free(ssids);
+ nlmsg_free(msg);
+ nlmsg_free(freqs);
+ return ret;
+}
+
+
+static int bss_info_handler(struct nl_msg *msg, void *arg)
+{
+ struct nlattr *tb[NL80211_ATTR_MAX + 1];
+ struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
+ struct nlattr *bss[NL80211_BSS_MAX + 1];
+ static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = {
+ [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC },
+ [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 },
+ [NL80211_BSS_TSF] = { .type = NLA_U64 },
+ [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 },
+ [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 },
+ [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC },
+ [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 },
+ [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 },
+ };
+ struct wpa_scan_results *res = arg;
+ struct wpa_scan_res **tmp;
+ struct wpa_scan_res *r;
+ const u8 *ie;
+ size_t ie_len;
+
+ nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
+ genlmsg_attrlen(gnlh, 0), NULL);
+ if (!tb[NL80211_ATTR_BSS])
+ return NL_SKIP;
+ if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS],
+ bss_policy))
+ return NL_SKIP;
+ if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) {
+ ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
+ ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
+ } else {
+ ie = NULL;
+ ie_len = 0;
+ }
+
+ r = os_zalloc(sizeof(*r) + ie_len);
+ if (r == NULL)
+ return NL_SKIP;
+ if (bss[NL80211_BSS_BSSID])
+ os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]),
+ ETH_ALEN);
+ if (bss[NL80211_BSS_FREQUENCY])
+ r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
+ if (bss[NL80211_BSS_BEACON_INTERVAL])
+ r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]);
+ if (bss[NL80211_BSS_CAPABILITY])
+ r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]);
+ r->flags |= WPA_SCAN_NOISE_INVALID;
+ if (bss[NL80211_BSS_SIGNAL_MBM]) {
+ r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]);
+ r->level /= 100; /* mBm to dBm */
+ r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID;
+ } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) {
+ r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]);
+ r->flags |= WPA_SCAN_LEVEL_INVALID;
+ } else
+ r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID;
+ if (bss[NL80211_BSS_TSF])
+ r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]);
+ r->ie_len = ie_len;
+ if (ie)
+ os_memcpy(r + 1, ie, ie_len);
+
+ tmp = os_realloc(res->res,
+ (res->num + 1) * sizeof(struct wpa_scan_res *));
+ if (tmp == NULL) {
+ os_free(r);
+ return NL_SKIP;
+ }
+ tmp[res->num++] = r;
+ res->res = tmp;
+
+ return NL_SKIP;
+}
+
+
+/**
+ * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results
+ * @priv: Pointer to private wext data from wpa_driver_nl80211_init()
+ * Returns: Scan results on success, -1 on failure
+ */
+static struct wpa_scan_results *
+wpa_driver_nl80211_get_scan_results(void *priv)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+ struct nl_msg *msg;
+ struct wpa_scan_results *res;
+ int ret;
+
+ res = os_zalloc(sizeof(*res));
+ if (res == NULL)
+ return 0;
+ msg = nlmsg_alloc();
+ if (!msg)
+ goto nla_put_failure;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, NLM_F_DUMP,
+ NL80211_CMD_GET_SCAN, 0);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+
+ ret = send_and_recv_msgs(drv, msg, bss_info_handler, res);
+ msg = NULL;
+ if (ret == 0) {
+ wpa_printf(MSG_DEBUG, "Received scan results (%lu BSSes)",
+ (unsigned long) res->num);
+ return res;
+ }
+ wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
+ "(%s)", ret, strerror(-ret));
+nla_put_failure:
+ nlmsg_free(msg);
+ wpa_scan_results_free(res);
+ return NULL;
+}
+
+
+static int nl_set_encr(int ifindex, struct wpa_driver_nl80211_data *drv,
+ wpa_alg alg, const u8 *addr, int key_idx, int set_tx,
+ const u8 *seq, size_t seq_len,
+ const u8 *key, size_t key_len)
+{
+ struct nl_msg *msg;
+ int ret;
+
+ wpa_printf(MSG_DEBUG, "%s: ifindex=%d alg=%d addr=%p key_idx=%d "
+ "set_tx=%d seq_len=%lu key_len=%lu",
+ __func__, ifindex, alg, addr, key_idx, set_tx,
+ (unsigned long) seq_len, (unsigned long) key_len);
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
+
+ if (alg == WPA_ALG_NONE) {
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, NL80211_CMD_DEL_KEY, 0);
+ } else {
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, NL80211_CMD_NEW_KEY, 0);
+ NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key);
+ switch (alg) {
+ case WPA_ALG_WEP:
+ if (key_len == 5)
+ NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
+ 0x000FAC01);
+ else
+ NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
+ 0x000FAC05);
+ break;
+ case WPA_ALG_TKIP:
+ NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 0x000FAC02);
+ break;
+ case WPA_ALG_CCMP:
+ NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 0x000FAC04);
+ break;
+ case WPA_ALG_IGTK:
+ NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 0x000FAC06);
+ break;
+ default:
+ wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
+ "algorithm %d", __func__, alg);
+ nlmsg_free(msg);
+ return -1;
+ }
+ }
+
+ if (seq)
+ NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq);
+
+ if (addr && os_memcmp(addr, "\xff\xff\xff\xff\xff\xff", ETH_ALEN) != 0)
+ {
+ wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr));
+ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
+ }
+ NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
+
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ if (ret == -ENOENT && alg == WPA_ALG_NONE)
+ ret = 0;
+ if (ret)
+ wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)",
+ ret, strerror(-ret));
+
+ /*
+ * If we failed or don't need to set the default TX key (below),
+ * we're done here.
+ */
+ if (ret || !set_tx || alg == WPA_ALG_NONE)
+ return ret;
+#ifdef HOSTAPD /* FIX: is this needed? */
+ if (addr)
+ return ret;
+#endif /* HOSTAPD */
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, NL80211_CMD_SET_KEY, 0);
+ NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
+ if (alg == WPA_ALG_IGTK)
+ NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT);
+ else
+ NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT);
+
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ if (ret == -ENOENT)
+ ret = 0;
+ if (ret)
+ wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; "
+ "err=%d %s)", ret, strerror(-ret));
+ return ret;
+
+nla_put_failure:
+ return -ENOBUFS;
+}
+
+
+static int wpa_driver_nl80211_set_key(void *priv, wpa_alg alg,
+ const u8 *addr, int key_idx,
+ int set_tx, const u8 *seq,
+ size_t seq_len,
+ const u8 *key, size_t key_len)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+ return nl_set_encr(drv->ifindex, drv, alg, addr, key_idx, set_tx, seq,
+ seq_len, key, key_len);
+}
+
+
+static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
+ const u8 *addr, int cmd, u16 reason_code)
+{
+ int ret = -1;
+ struct nl_msg *msg;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -1;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0, cmd, 0);
+
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+ NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code);
+ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
+
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ msg = NULL;
+ if (ret) {
+ wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
+ "(%s)", ret, strerror(-ret));
+ goto nla_put_failure;
+ }
+ ret = 0;
+
+nla_put_failure:
+ nlmsg_free(msg);
+ return ret;
+}
+
+
+static int wpa_driver_nl80211_deauthenticate(void *priv, const u8 *addr,
+ int reason_code)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+ wpa_printf(MSG_DEBUG, "%s", __func__);
+ return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE,
+ reason_code);
+}
+
+
+static int wpa_driver_nl80211_disassociate(void *priv, const u8 *addr,
+ int reason_code)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+ wpa_printf(MSG_DEBUG, "%s", __func__);
+ return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DISASSOCIATE,
+ reason_code);
+}
+
+
+static int wpa_driver_nl80211_authenticate(
+ void *priv, struct wpa_driver_auth_params *params)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+ int ret = -1, i;
+ struct nl_msg *msg;
+ enum nl80211_auth_type type;
+
+ drv->associated = 0;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -1;
+
+ wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)",
+ drv->ifindex);
+
+ for (i = 0; i < 4; i++) {
+ if (!params->wep_key[i])
+ continue;
+ wpa_driver_nl80211_set_key(drv, WPA_ALG_WEP, NULL, i,
+ i == params->wep_tx_keyidx, NULL, 0,
+ params->wep_key[i],
+ params->wep_key_len[i]);
+ }
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
+ NL80211_CMD_AUTHENTICATE, 0);
+
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+ if (params->bssid) {
+ wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
+ MAC2STR(params->bssid));
+ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
+ }
+ if (params->freq) {
+ wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
+ }
+ if (params->ssid) {
+ wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
+ params->ssid, params->ssid_len);
+ NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
+ params->ssid);
+ }
+ wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len);
+ if (params->ie)
+ NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie);
+ /*
+ * TODO: if multiple auth_alg options enabled, try them one by one if
+ * the AP rejects authentication due to unknown auth alg
+ */
+ if (params->auth_alg & AUTH_ALG_OPEN_SYSTEM)
+ type = NL80211_AUTHTYPE_OPEN_SYSTEM;
+ else if (params->auth_alg & AUTH_ALG_SHARED_KEY)
+ type = NL80211_AUTHTYPE_SHARED_KEY;
+ else if (params->auth_alg & AUTH_ALG_LEAP)
+ type = NL80211_AUTHTYPE_NETWORK_EAP;
+ else if (params->auth_alg & AUTH_ALG_FT)
+ type = NL80211_AUTHTYPE_FT;
+ else
+ goto nla_put_failure;
+ wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
+ NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
+
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ msg = NULL;
+ if (ret) {
+ wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
+ "(%s)", ret, strerror(-ret));
+ goto nla_put_failure;
+ }
+ ret = 0;
+ wpa_printf(MSG_DEBUG, "nl80211: Authentication request send "
+ "successfully");
+
+nla_put_failure:
+ nlmsg_free(msg);
+ return ret;
+}
+
+
+#if defined(CONFIG_AP) || defined(HOSTAPD)
+
+struct phy_info_arg {
+ u16 *num_modes;
+ struct hostapd_hw_modes *modes;
+};
+
+static int phy_info_handler(struct nl_msg *msg, void *arg)
+{
+ struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
+ struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
+ struct phy_info_arg *phy_info = arg;
+
+ struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1];
+
+ struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1];
+ static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
+ [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
+ [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
+ [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG },
+ [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG },
+ [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
+ [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
+ };
+
+ struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1];
+ static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = {
+ [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 },
+ [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = { .type = NLA_FLAG },
+ };
+
+ struct nlattr *nl_band;
+ struct nlattr *nl_freq;
+ struct nlattr *nl_rate;
+ int rem_band, rem_freq, rem_rate;
+ struct hostapd_hw_modes *mode;
+ int idx, mode_is_set;
+
+ nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
+ genlmsg_attrlen(gnlh, 0), NULL);
+
+ if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
+ return NL_SKIP;
+
+ nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) {
+ mode = realloc(phy_info->modes, (*phy_info->num_modes + 1) * sizeof(*mode));
+ if (!mode)
+ return NL_SKIP;
+ phy_info->modes = mode;
+
+ mode_is_set = 0;
+
+ mode = &phy_info->modes[*(phy_info->num_modes)];
+ memset(mode, 0, sizeof(*mode));
+ *(phy_info->num_modes) += 1;
+
+ nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
+ nla_len(nl_band), NULL);
+
+ if (tb_band[NL80211_BAND_ATTR_HT_CAPA]) {
+ mode->ht_capab = nla_get_u16(
+ tb_band[NL80211_BAND_ATTR_HT_CAPA]);
+ }
+
+ nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
+ nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
+ nla_len(nl_freq), freq_policy);
+ if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
+ continue;
+ mode->num_channels++;
+ }
+
+ mode->channels = calloc(mode->num_channels, sizeof(struct hostapd_channel_data));
+ if (!mode->channels)
+ return NL_SKIP;
+
+ idx = 0;
+
+ nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
+ nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
+ nla_len(nl_freq), freq_policy);
+ if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
+ continue;
+
+ mode->channels[idx].freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
+ mode->channels[idx].flag = 0;
+
+ if (!mode_is_set) {
+ /* crude heuristic */
+ if (mode->channels[idx].freq < 4000)
+ mode->mode = HOSTAPD_MODE_IEEE80211B;
+ else
+ mode->mode = HOSTAPD_MODE_IEEE80211A;
+ mode_is_set = 1;
+ }
+
+ /* crude heuristic */
+ if (mode->channels[idx].freq < 4000)
+ if (mode->channels[idx].freq == 2484)
+ mode->channels[idx].chan = 14;
+ else
+ mode->channels[idx].chan = (mode->channels[idx].freq - 2407) / 5;
+ else
+ mode->channels[idx].chan = mode->channels[idx].freq/5 - 1000;
+
+ if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
+ mode->channels[idx].flag |=
+ HOSTAPD_CHAN_DISABLED;
+ if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN])
+ mode->channels[idx].flag |=
+ HOSTAPD_CHAN_PASSIVE_SCAN;
+ if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS])
+ mode->channels[idx].flag |=
+ HOSTAPD_CHAN_NO_IBSS;
+ if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
+ mode->channels[idx].flag |=
+ HOSTAPD_CHAN_RADAR;
+
+ if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] &&
+ !tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
+ mode->channels[idx].max_tx_power =
+ nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100;
+
+ idx++;
+ }
+
+ nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
+ nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
+ nla_len(nl_rate), rate_policy);
+ if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
+ continue;
+ mode->num_rates++;
+ }
+
+ mode->rates = calloc(mode->num_rates, sizeof(struct hostapd_rate_data));
+ if (!mode->rates)
+ return NL_SKIP;
+
+ idx = 0;
+
+ nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
+ nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
+ nla_len(nl_rate), rate_policy);
+ if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
+ continue;
+ mode->rates[idx].rate = nla_get_u32(tb_rate[NL80211_BITRATE_ATTR_RATE]);
+
+ /* crude heuristic */
+ if (mode->mode == HOSTAPD_MODE_IEEE80211B &&
+ mode->rates[idx].rate > 200)
+ mode->mode = HOSTAPD_MODE_IEEE80211G;
+
+ if (tb_rate[NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE])
+ mode->rates[idx].flags |= HOSTAPD_RATE_PREAMBLE2;
+
+ idx++;
+ }
+ }
+
+ return NL_SKIP;
+}
+
+static struct hostapd_hw_modes *
+wpa_driver_nl80211_add_11b(struct hostapd_hw_modes *modes, u16 *num_modes)
+{
+ u16 m;
+ struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode;
+ int i, mode11g_idx = -1;
+
+ /* If only 802.11g mode is included, use it to construct matching
+ * 802.11b mode data. */
+
+ for (m = 0; m < *num_modes; m++) {
+ if (modes[m].mode == HOSTAPD_MODE_IEEE80211B)
+ return modes; /* 802.11b already included */
+ if (modes[m].mode == HOSTAPD_MODE_IEEE80211G)
+ mode11g_idx = m;
+ }
+
+ if (mode11g_idx < 0)
+ return modes; /* 2.4 GHz band not supported at all */
+
+ nmodes = os_realloc(modes, (*num_modes + 1) * sizeof(*nmodes));
+ if (nmodes == NULL)
+ return modes; /* Could not add 802.11b mode */
+
+ mode = &nmodes[*num_modes];
+ os_memset(mode, 0, sizeof(*mode));
+ (*num_modes)++;
+ modes = nmodes;
+
+ mode->mode = HOSTAPD_MODE_IEEE80211B;
+
+ mode11g = &modes[mode11g_idx];
+ mode->num_channels = mode11g->num_channels;
+ mode->channels = os_malloc(mode11g->num_channels *
+ sizeof(struct hostapd_channel_data));
+ if (mode->channels == NULL) {
+ (*num_modes)--;
+ return modes; /* Could not add 802.11b mode */
+ }
+ os_memcpy(mode->channels, mode11g->channels,
+ mode11g->num_channels * sizeof(struct hostapd_channel_data));
+
+ mode->num_rates = 0;
+ mode->rates = os_malloc(4 * sizeof(struct hostapd_rate_data));
+ if (mode->rates == NULL) {
+ os_free(mode->channels);
+ (*num_modes)--;
+ return modes; /* Could not add 802.11b mode */
+ }
+
+ for (i = 0; i < mode11g->num_rates; i++) {
+ if (mode11g->rates[i].rate > 110 ||
+ mode11g->rates[i].flags &
+ (HOSTAPD_RATE_ERP | HOSTAPD_RATE_OFDM))
+ continue;
+ mode->rates[mode->num_rates] = mode11g->rates[i];
+ mode->num_rates++;
+ if (mode->num_rates == 4)
+ break;
+ }
+
+ if (mode->num_rates == 0) {
+ os_free(mode->channels);
+ os_free(mode->rates);
+ (*num_modes)--;
+ return modes; /* No 802.11b rates */
+ }
+
+ wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g "
+ "information");
+
+ return modes;
+}
+
+
+static struct hostapd_hw_modes *
+wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+ struct nl_msg *msg;
+ struct phy_info_arg result = {
+ .num_modes = num_modes,
+ .modes = NULL,
+ };
+
+ *num_modes = 0;
+ *flags = 0;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return NULL;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, NL80211_CMD_GET_WIPHY, 0);
+
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+
+ if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0)
+ return wpa_driver_nl80211_add_11b(result.modes, num_modes);
+ nla_put_failure:
+ return NULL;
+}
+
+
+static int wpa_driver_nl80211_send_frame(struct wpa_driver_nl80211_data *drv,
+ const void *data, size_t len,
+ int encrypt)
+{
+ __u8 rtap_hdr[] = {
+ 0x00, 0x00, /* radiotap version */
+ 0x0e, 0x00, /* radiotap length */
+ 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */
+ IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */
+ 0x00, /* padding */
+ 0x00, 0x00, /* RX and TX flags to indicate that */
+ 0x00, 0x00, /* this is the injected frame directly */
+ };
+ struct iovec iov[2] = {
+ {
+ .iov_base = &rtap_hdr,
+ .iov_len = sizeof(rtap_hdr),
+ },
+ {
+ .iov_base = (void *) data,
+ .iov_len = len,
+ }
+ };
+ struct msghdr msg = {
+ .msg_name = NULL,
+ .msg_namelen = 0,
+ .msg_iov = iov,
+ .msg_iovlen = 2,
+ .msg_control = NULL,
+ .msg_controllen = 0,
+ .msg_flags = 0,
+ };
+
+ if (encrypt)
+ rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP;
+
+ return sendmsg(drv->monitor_sock, &msg, 0);
+}
+
+
+static int wpa_driver_nl80211_send_mlme(void *priv, const u8 *data,
+ size_t data_len)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+ struct ieee80211_mgmt *mgmt;
+ int do_not_encrypt = 0;
+ u16 fc;
+
+ mgmt = (struct ieee80211_mgmt *) data;
+ fc = le_to_host16(mgmt->frame_control);
+
+ if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
+ WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) {
+ /*
+ * Only one of the authentication frame types is encrypted.
+ * In order for static WEP encryption to work properly (i.e.,
+ * to not encrypt the frame), we need to tell mac80211 about
+ * the frames that must not be encrypted.
+ */
+ u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg);
+ u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction);
+ if (auth_alg == WLAN_AUTH_OPEN ||
+ (auth_alg == WLAN_AUTH_SHARED_KEY && auth_trans != 3))
+ do_not_encrypt = 1;
+ }
+
+ return wpa_driver_nl80211_send_frame(drv, data, data_len,
+ !do_not_encrypt);
+}
+
+#endif /* CONFIG_AP || HOSTAPD */
+
+
+#ifdef CONFIG_AP
+
+static int wpa_driver_nl80211_set_beacon(void *priv,
+ const u8 *head, size_t head_len,
+ const u8 *tail, size_t tail_len,
+ int dtim_period)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+ struct nl_msg *msg;
+ u8 cmd = NL80211_CMD_NEW_BEACON;
+ int ret;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
+
+ wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)",
+ drv->beacon_set);
+ if (drv->beacon_set)
+ cmd = NL80211_CMD_SET_BEACON;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, cmd, 0);
+ NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, head_len, head);
+ NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, tail_len, tail);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+ if (!drv->beacon_int)
+ drv->beacon_int = 100;
+ NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, drv->beacon_int);
+ NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, dtim_period);
+
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ if (ret) {
+ wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)",
+ ret, strerror(-ret));
+ } else
+ drv->beacon_set = 1;
+ return ret;
+ nla_put_failure:
+ return -ENOBUFS;
+}
+
+
+static int wpa_driver_nl80211_set_beacon_int(void *priv, int value)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+ struct nl_msg *msg;
+
+ drv->beacon_int = value;
+
+ if (!drv->beacon_set)
+ return 0;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
+
+ wpa_printf(MSG_DEBUG, "nl80211: Set beacon interval %d "
+ "(beacon_set=%d)", value, drv->beacon_set);
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, NL80211_CMD_SET_BEACON, 0);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+
+ NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, value);
+
+ return send_and_recv_msgs(drv, msg, NULL, NULL);
+ nla_put_failure:
+ return -ENOBUFS;
+}
+
+
+static int wpa_driver_nl80211_set_freq2(
+ struct wpa_driver_nl80211_data *drv,
+ struct wpa_driver_associate_params *params)
+{
+ struct nl_msg *msg;
+ int ret;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -1;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
+ NL80211_CMD_SET_WIPHY, 0);
+
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
+
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ if (ret == 0)
+ return 0;
+ wpa_printf(MSG_DEBUG, "nl80211: MLME Failed to set channel (freq=%d): "
+ "%d (%s)", params->freq, ret, strerror(-ret));
+nla_put_failure:
+ return -1;
+}
+
+
+static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv,
+ int ifidx)
+{
+ struct nl_msg *msg;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ goto nla_put_failure;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, NL80211_CMD_DEL_INTERFACE, 0);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx);
+
+ if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
+ return;
+ nla_put_failure:
+ wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d).\n",
+ ifidx);
+}
+
+
+static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv,
+ const char *ifname, enum nl80211_iftype iftype)
+{
+ struct nl_msg *msg, *flags = NULL;
+ int ifidx;
+ int ret = -ENOBUFS;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -1;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, NL80211_CMD_NEW_INTERFACE, 0);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+ NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype);
+
+ if (iftype == NL80211_IFTYPE_MONITOR) {
+ int err;
+
+ flags = nlmsg_alloc();
+ if (!flags)
+ goto nla_put_failure;
+
+ NLA_PUT_FLAG(flags, NL80211_MNTR_FLAG_COOK_FRAMES);
+
+ err = nla_put_nested(msg, NL80211_ATTR_MNTR_FLAGS, flags);
+
+ nlmsg_free(flags);
+
+ if (err)
+ goto nla_put_failure;
+ }
+
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ if (ret) {
+ nla_put_failure:
+ wpa_printf(MSG_ERROR, "Failed to create interface %s.",
+ ifname);
+ return ret;
+ }
+
+ ifidx = if_nametoindex(ifname);
+
+ if (ifidx <= 0)
+ return -1;
+
+ return ifidx;
+}
+
+
+enum ieee80211_msg_type {
+ ieee80211_msg_normal = 0,
+ ieee80211_msg_tx_callback_ack = 1,
+ ieee80211_msg_tx_callback_fail = 2,
+};
+
+
+void ap_tx_status(void *ctx, const u8 *addr,
+ const u8 *buf, size_t len, int ack);
+void ap_rx_from_unknown_sta(void *ctx, const u8 *addr);
+void ap_mgmt_rx(void *ctx, u8 *buf, size_t len, u16 stype,
+ struct hostapd_frame_info *fi);
+void ap_mgmt_tx_cb(void *ctx, u8 *buf, size_t len, u16 stype, int ok);
+
+
+static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok)
+{
+ struct ieee80211_hdr *hdr;
+ u16 fc, type, stype;
+
+ hdr = (struct ieee80211_hdr *) buf;
+ fc = le_to_host16(hdr->frame_control);
+
+ type = WLAN_FC_GET_TYPE(fc);
+ stype = WLAN_FC_GET_STYPE(fc);
+
+ switch (type) {
+ case WLAN_FC_TYPE_MGMT:
+ wpa_printf(MSG_DEBUG, "MGMT (TX callback) %s",
+ ok ? "ACK" : "fail");
+ ap_mgmt_tx_cb(ctx, buf, len, stype, ok);
+ break;
+ case WLAN_FC_TYPE_CTRL:
+ wpa_printf(MSG_DEBUG, "CTRL (TX callback) %s",
+ ok ? "ACK" : "fail");
+ break;
+ case WLAN_FC_TYPE_DATA:
+ ap_tx_status(ctx, hdr->addr1, buf, len, ok);
+ break;
+ default:
+ wpa_printf(MSG_DEBUG, "unknown TX callback frame type %d",
+ type);
+ break;
+ }
+}
+
+
+static void handle_frame(struct wpa_driver_nl80211_data *drv,
+ u8 *buf, size_t len,
+ struct hostapd_frame_info *hfi,
+ enum ieee80211_msg_type msg_type)
+{
+ struct ieee80211_hdr *hdr;
+ u16 fc, type, stype;
+ size_t data_len = len;
+
+ /*
+ * PS-Poll frames are 16 bytes. All other frames are
+ * 24 bytes or longer.
+ */
+ if (len < 16)
+ return;
+
+ hdr = (struct ieee80211_hdr *) buf;
+ fc = le_to_host16(hdr->frame_control);
+
+ type = WLAN_FC_GET_TYPE(fc);
+ stype = WLAN_FC_GET_STYPE(fc);
+
+ switch (type) {
+ case WLAN_FC_TYPE_DATA:
+ if (len < 24)
+ return;
+ switch (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) {
+ case WLAN_FC_TODS:
+ break;
+ case WLAN_FC_FROMDS:
+ break;
+ default:
+ /* discard */
+ return;
+ }
+ break;
+ case WLAN_FC_TYPE_CTRL:
+ /* discard non-ps-poll frames */
+ if (stype != WLAN_FC_STYPE_PSPOLL)
+ return;
+ break;
+ case WLAN_FC_TYPE_MGMT:
+ break;
+ default:
+ /* discard */
+ return;
+ }
+
+ switch (msg_type) {
+ case ieee80211_msg_normal:
+ /* continue processing */
+ break;
+ case ieee80211_msg_tx_callback_ack:
+ handle_tx_callback(drv->ctx, buf, data_len, 1);
+ return;
+ case ieee80211_msg_tx_callback_fail:
+ handle_tx_callback(drv->ctx, buf, data_len, 0);
+ return;
+ }
+
+ switch (type) {
+ case WLAN_FC_TYPE_MGMT:
+ if (stype != WLAN_FC_STYPE_BEACON &&
+ stype != WLAN_FC_STYPE_PROBE_REQ)
+ wpa_printf(MSG_MSGDUMP, "MGMT");
+ ap_mgmt_rx(drv->ctx, buf, data_len, stype, hfi);
+ break;
+ case WLAN_FC_TYPE_CTRL:
+ /* can only get here with PS-Poll frames */
+ wpa_printf(MSG_DEBUG, "CTRL");
+ ap_rx_from_unknown_sta(drv->ctx, hdr->addr2);
+ break;
+ case WLAN_FC_TYPE_DATA:
+ ap_rx_from_unknown_sta(drv->ctx, hdr->addr2);
+ break;
+ }
+}
+
+
+static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx)
+{
+ struct wpa_driver_nl80211_data *drv = eloop_ctx;
+ int len;
+ unsigned char buf[3000];
+ struct ieee80211_radiotap_iterator iter;
+ int ret;
+ struct hostapd_frame_info hfi;
+ int injected = 0, failed = 0, msg_type, rxflags = 0;
+
+ len = recv(sock, buf, sizeof(buf), 0);
+ if (len < 0) {
+ perror("recv");
+ return;
+ }
+
+ if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) {
+ printf("received invalid radiotap frame\n");
+ return;
+ }
+
+ memset(&hfi, 0, sizeof(hfi));
+
+ while (1) {
+ ret = ieee80211_radiotap_iterator_next(&iter);
+ if (ret == -ENOENT)
+ break;
+ if (ret) {
+ printf("received invalid radiotap frame (%d)\n", ret);
+ return;
+ }
+ switch (iter.this_arg_index) {
+ case IEEE80211_RADIOTAP_FLAGS:
+ if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS)
+ len -= 4;
+ break;
+ case IEEE80211_RADIOTAP_RX_FLAGS:
+ rxflags = 1;
+ break;
+ case IEEE80211_RADIOTAP_TX_FLAGS:
+ injected = 1;
+ failed = le_to_host16((*(uint16_t *) iter.this_arg)) &
+ IEEE80211_RADIOTAP_F_TX_FAIL;
+ break;
+ case IEEE80211_RADIOTAP_DATA_RETRIES:
+ break;
+ case IEEE80211_RADIOTAP_CHANNEL:
+ /* TODO convert from freq/flags to channel number
+ hfi.channel = XXX;
+ hfi.phytype = XXX;
+ */
+ break;
+ case IEEE80211_RADIOTAP_RATE:
+ hfi.datarate = *iter.this_arg * 5;
+ break;
+ case IEEE80211_RADIOTAP_DB_ANTSIGNAL:
+ hfi.ssi_signal = *iter.this_arg;
+ break;
+ }
+ }
+
+ if (rxflags && injected)
+ return;
+
+ if (!injected)
+ msg_type = ieee80211_msg_normal;
+ else if (failed)
+ msg_type = ieee80211_msg_tx_callback_fail;
+ else
+ msg_type = ieee80211_msg_tx_callback_ack;
+
+ handle_frame(drv, buf + iter.max_length,
+ len - iter.max_length, &hfi, msg_type);
+}
+
+
+/*
+ * we post-process the filter code later and rewrite
+ * this to the offset to the last instruction
+ */
+#define PASS 0xFF
+#define FAIL 0xFE
+
+static struct sock_filter msock_filter_insns[] = {
+ /*
+ * do a little-endian load of the radiotap length field
+ */
+ /* load lower byte into A */
+ BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2),
+ /* put it into X (== index register) */
+ BPF_STMT(BPF_MISC| BPF_TAX, 0),
+ /* load upper byte into A */
+ BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3),
+ /* left-shift it by 8 */
+ BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8),
+ /* or with X */
+ BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0),
+ /* put result into X */
+ BPF_STMT(BPF_MISC| BPF_TAX, 0),
+
+ /*
+ * Allow management frames through, this also gives us those
+ * management frames that we sent ourselves with status
+ */
+ /* load the lower byte of the IEEE 802.11 frame control field */
+ BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
+ /* mask off frame type and version */
+ BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF),
+ /* accept frame if it's both 0, fall through otherwise */
+ BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0),
+
+ /*
+ * TODO: add a bit to radiotap RX flags that indicates
+ * that the sending station is not associated, then
+ * add a filter here that filters on our DA and that flag
+ * to allow us to deauth frames to that bad station.
+ *
+ * Not a regression -- we didn't do it before either.
+ */
+
+#if 0
+ /*
+ * drop non-data frames, WDS frames
+ */
+ /* load the lower byte of the frame control field */
+ BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
+ /* mask off QoS bit */
+ BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c),
+ /* drop non-data frames */
+ BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL),
+ /* load the upper byte of the frame control field */
+ BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
+ /* mask off toDS/fromDS */
+ BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03),
+ /* drop WDS frames */
+ BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, FAIL, 0),
+#endif
+
+ /*
+ * add header length to index
+ */
+ /* load the lower byte of the frame control field */
+ BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
+ /* mask off QoS bit */
+ BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80),
+ /* right shift it by 6 to give 0 or 2 */
+ BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6),
+ /* add data frame header length */
+ BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24),
+ /* add index, was start of 802.11 header */
+ BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0),
+ /* move to index, now start of LL header */
+ BPF_STMT(BPF_MISC | BPF_TAX, 0),
+
+ /*
+ * Accept empty data frames, we use those for
+ * polling activity.
+ */
+ BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0),
+ BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0),
+
+ /*
+ * Accept EAPOL frames
+ */
+ BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0),
+ BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL),
+ BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4),
+ BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL),
+
+ /* keep these last two statements or change the code below */
+ /* return 0 == "DROP" */
+ BPF_STMT(BPF_RET | BPF_K, 0),
+ /* return ~0 == "keep all" */
+ BPF_STMT(BPF_RET | BPF_K, ~0),
+};
+
+static struct sock_fprog msock_filter = {
+ .len = sizeof(msock_filter_insns)/sizeof(msock_filter_insns[0]),
+ .filter = msock_filter_insns,
+};
+
+
+static int add_monitor_filter(int s)
+{
+ int idx;
+
+ /* rewrite all PASS/FAIL jump offsets */
+ for (idx = 0; idx < msock_filter.len; idx++) {
+ struct sock_filter *insn = &msock_filter_insns[idx];
+
+ if (BPF_CLASS(insn->code) == BPF_JMP) {
+ if (insn->code == (BPF_JMP|BPF_JA)) {
+ if (insn->k == PASS)
+ insn->k = msock_filter.len - idx - 2;
+ else if (insn->k == FAIL)
+ insn->k = msock_filter.len - idx - 3;
+ }
+
+ if (insn->jt == PASS)
+ insn->jt = msock_filter.len - idx - 2;
+ else if (insn->jt == FAIL)
+ insn->jt = msock_filter.len - idx - 3;
+
+ if (insn->jf == PASS)
+ insn->jf = msock_filter.len - idx - 2;
+ else if (insn->jf == FAIL)
+ insn->jf = msock_filter.len - idx - 3;
+ }
+ }
+
+ if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER,
+ &msock_filter, sizeof(msock_filter))) {
+ perror("SO_ATTACH_FILTER");
+ return -1;
+ }
+
+ return 0;
+}
+
+
+static int
+nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv)
+{
+ char buf[IFNAMSIZ];
+ struct sockaddr_ll ll;
+ int optval;
+ socklen_t optlen;
+ int flags;
+
+ snprintf(buf, IFNAMSIZ, "mon.%s", drv->ifname);
+ buf[IFNAMSIZ - 1] = '\0';
+
+ drv->monitor_ifidx =
+ nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR);
+
+ if (drv->monitor_ifidx < 0)
+ return -1;
+
+ if (wpa_driver_nl80211_get_ifflags_ifname(drv, buf, &flags) != 0) {
+ wpa_printf(MSG_ERROR, "Could not get interface '%s' flags",
+ buf);
+ goto error;
+ }
+ if (!(flags & IFF_UP)) {
+ if (wpa_driver_nl80211_set_ifflags_ifname(drv, buf,
+ flags | IFF_UP) != 0)
+ {
+ wpa_printf(MSG_ERROR, "Could not set interface '%s' "
+ "UP", buf);
+ goto error;
+ }
+ }
+
+ memset(&ll, 0, sizeof(ll));
+ ll.sll_family = AF_PACKET;
+ ll.sll_ifindex = drv->monitor_ifidx;
+ drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
+ if (drv->monitor_sock < 0) {
+ perror("socket[PF_PACKET,SOCK_RAW]");
+ goto error;
+ }
+
+ if (add_monitor_filter(drv->monitor_sock)) {
+ wpa_printf(MSG_INFO, "Failed to set socket filter for monitor "
+ "interface; do filtering in user space");
+ /* This works, but will cost in performance. */
+ }
+
+ if (bind(drv->monitor_sock, (struct sockaddr *) &ll,
+ sizeof(ll)) < 0) {
+ perror("monitor socket bind");
+ goto error;
+ }
+
+ optlen = sizeof(optval);
+ optval = 20;
+ if (setsockopt
+ (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) {
+ perror("Failed to set socket priority");
+ goto error;
+ }
+
+ if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read,
+ drv, NULL)) {
+ printf("Could not register monitor read socket\n");
+ goto error;
+ }
+
+ return 0;
+ error:
+ nl80211_remove_iface(drv, drv->monitor_ifidx);
+ return -1;
+}
+
+
+static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv,
+ struct wpa_driver_associate_params *params)
+{
+ if (drv->monitor_ifidx < 0 &&
+ nl80211_create_monitor_interface(drv))
+ return -1;
+
+ if (wpa_driver_nl80211_set_mode(drv, params->mode) ||
+ wpa_driver_nl80211_set_freq2(drv, params)) {
+ nl80211_remove_iface(drv, drv->monitor_ifidx);
+ drv->monitor_ifidx = -1;
+ return -1;
}
- wpa_printf(MSG_DEBUG, "RTM_NEWLINK: operstate=%d ifi_flags=0x%x "
- "(%s%s%s%s)",
- drv->operstate, ifi->ifi_flags,
- (ifi->ifi_flags & IFF_UP) ? "[UP]" : "",
- (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "",
- (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "",
- (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : "");
- /*
- * Some drivers send the association event before the operup event--in
- * this case, lifting operstate in wpa_driver_nl80211_set_operstate()
- * fails. This will hit us when wpa_supplicant does not need to do
- * IEEE 802.1X authentication
- */
- if (drv->operstate == 1 &&
- (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP &&
- !(ifi->ifi_flags & IFF_RUNNING))
- wpa_driver_nl80211_send_oper_ifla(drv, -1, IF_OPER_UP);
+ /* TODO: setup monitor interface (and add code somewhere to remove this
+ * when AP mode is stopped; associate with mode != 2 or drv_deinit) */
- _nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
+ return 0;
+}
+#endif /* CONFIG_AP */
- attrlen = h->nlmsg_len - _nlmsg_len;
- if (attrlen < 0)
- return;
- attr = (struct rtattr *) (((char *) ifi) + _nlmsg_len);
+static int wpa_driver_nl80211_associate(
+ void *priv, struct wpa_driver_associate_params *params)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+ int ret = -1;
+ struct nl_msg *msg;
- rta_len = RTA_ALIGN(sizeof(struct rtattr));
- while (RTA_OK(attr, attrlen)) {
- if (attr->rta_type == IFLA_WIRELESS) {
- wpa_driver_nl80211_event_wireless(
- drv, ctx, ((char *) attr) + rta_len,
- attr->rta_len - rta_len);
- } else if (attr->rta_type == IFLA_IFNAME) {
- wpa_driver_nl80211_event_link(
- drv, ctx,
- ((char *) attr) + rta_len,
- attr->rta_len - rta_len, 0);
- }
- attr = RTA_NEXT(attr, attrlen);
+#ifdef CONFIG_AP
+ if (params->mode == 2)
+ return wpa_driver_nl80211_ap(drv, params);
+#endif /* CONFIG_AP */
+
+ wpa_driver_nl80211_set_auth_param(drv, IW_AUTH_DROP_UNENCRYPTED,
+ params->drop_unencrypted);
+
+ drv->associated = 0;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -1;
+
+ wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)",
+ drv->ifindex);
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
+ NL80211_CMD_ASSOCIATE, 0);
+
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+ if (params->bssid) {
+ wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
+ MAC2STR(params->bssid));
+ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
+ }
+ if (params->freq) {
+ wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
+ }
+ if (params->ssid) {
+ wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
+ params->ssid, params->ssid_len);
+ NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
+ params->ssid);
+ if (params->ssid_len > sizeof(drv->ssid))
+ goto nla_put_failure;
+ os_memcpy(drv->ssid, params->ssid, params->ssid_len);
+ drv->ssid_len = params->ssid_len;
+ }
+ wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
+ if (params->wpa_ie)
+ NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
+ params->wpa_ie);
+
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ msg = NULL;
+ if (ret) {
+ wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
+ "(%s)", ret, strerror(-ret));
+ goto nla_put_failure;
}
+ ret = 0;
+ wpa_printf(MSG_DEBUG, "nl80211: Association request send "
+ "successfully");
+
+nla_put_failure:
+ nlmsg_free(msg);
+ return ret;
}
-static void wpa_driver_nl80211_event_rtm_dellink(struct wpa_driver_nl80211_data *drv,
- void *ctx, struct nlmsghdr *h,
- size_t len)
+/**
+ * wpa_driver_nl80211_set_mode - Set wireless mode (infra/adhoc)
+ * @drv: Pointer to private driver data from wpa_driver_nl80211_init()
+ * @mode: 0 = infra/BSS (associate with an AP), 1 = adhoc/IBSS
+ * Returns: 0 on success, -1 on failure
+ */
+static int wpa_driver_nl80211_set_mode(struct wpa_driver_nl80211_data *drv,
+ int mode)
{
- struct ifinfomsg *ifi;
- int attrlen, _nlmsg_len, rta_len;
- struct rtattr * attr;
+ int ret = -1, flags;
+ struct nl_msg *msg;
+ int nlmode;
+
+ switch (mode) {
+ case 0:
+ nlmode = NL80211_IFTYPE_STATION;
+ break;
+ case 1:
+ nlmode = NL80211_IFTYPE_ADHOC;
+ break;
+ case 2:
+ nlmode = NL80211_IFTYPE_AP;
+ break;
+ default:
+ return -1;
+ }
- if (len < sizeof(*ifi))
- return;
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -1;
- ifi = NLMSG_DATA(h);
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, NL80211_CMD_SET_INTERFACE, 0);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, nlmode);
- _nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ if (!ret)
+ return 0;
+ else
+ goto try_again;
- attrlen = h->nlmsg_len - _nlmsg_len;
- if (attrlen < 0)
- return;
+nla_put_failure:
+ wpa_printf(MSG_ERROR, "nl80211: Failed to set interface mode: %d (%s)",
+ ret, strerror(-ret));
+ return -1;
- attr = (struct rtattr *) (((char *) ifi) + _nlmsg_len);
+try_again:
+ /* mac80211 doesn't allow mode changes while the device is up, so
+ * take the device down, try to set the mode again, and bring the
+ * device back up.
+ */
+ if (wpa_driver_nl80211_get_ifflags(drv, &flags) == 0) {
+ (void) wpa_driver_nl80211_set_ifflags(drv, flags & ~IFF_UP);
- rta_len = RTA_ALIGN(sizeof(struct rtattr));
- while (RTA_OK(attr, attrlen)) {
- if (attr->rta_type == IFLA_IFNAME) {
- wpa_driver_nl80211_event_link(
- drv, ctx,
- ((char *) attr) + rta_len,
- attr->rta_len - rta_len, 1);
+ /* Try to set the mode again while the interface is down */
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -1;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, NL80211_CMD_SET_INTERFACE, 0);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, nlmode);
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ if (ret) {
+ wpa_printf(MSG_ERROR, "Failed to set interface %s "
+ "mode(try_again): %d (%s)",
+ drv->ifname, ret, strerror(-ret));
}
- attr = RTA_NEXT(attr, attrlen);
+
+ /* Ignore return value of get_ifflags to ensure that the device
+ * is always up like it was before this function was called.
+ */
+ (void) wpa_driver_nl80211_get_ifflags(drv, &flags);
+ (void) wpa_driver_nl80211_set_ifflags(drv, flags | IFF_UP);
}
+
+ return ret;
}
-static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx,
- void *sock_ctx)
+static int wpa_driver_nl80211_get_capa(void *priv,
+ struct wpa_driver_capa *capa)
{
- char buf[8192];
- int left;
- struct sockaddr_nl from;
- socklen_t fromlen;
- struct nlmsghdr *h;
- int max_events = 10;
+ struct wpa_driver_nl80211_data *drv = priv;
+ if (!drv->has_capability)
+ return -1;
+ os_memcpy(capa, &drv->capa, sizeof(*capa));
+ return 0;
+}
-try_again:
- fromlen = sizeof(from);
- left = recvfrom(sock, buf, sizeof(buf), MSG_DONTWAIT,
- (struct sockaddr *) &from, &fromlen);
- if (left < 0) {
- if (errno != EINTR && errno != EAGAIN)
- perror("recvfrom(netlink)");
- return;
- }
- h = (struct nlmsghdr *) buf;
- while (left >= (int) sizeof(*h)) {
- int len, plen;
+static int wpa_driver_nl80211_set_operstate(void *priv, int state)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
- len = h->nlmsg_len;
- plen = len - sizeof(*h);
- if (len > left || plen < 0) {
- wpa_printf(MSG_DEBUG, "Malformed netlink message: "
- "len=%d left=%d plen=%d",
- len, left, plen);
- break;
- }
+ wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)",
+ __func__, drv->operstate, state, state ? "UP" : "DORMANT");
+ drv->operstate = state;
+ return wpa_driver_nl80211_send_oper_ifla(
+ drv, -1, state ? IF_OPER_UP : IF_OPER_DORMANT);
+}
- switch (h->nlmsg_type) {
- case RTM_NEWLINK:
- wpa_driver_nl80211_event_rtm_newlink(eloop_ctx, sock_ctx,
- h, plen);
- break;
- case RTM_DELLINK:
- wpa_driver_nl80211_event_rtm_dellink(eloop_ctx, sock_ctx,
- h, plen);
- break;
- }
- len = NLMSG_ALIGN(len);
- left -= len;
- h = (struct nlmsghdr *) ((char *) h + len);
+#ifdef HOSTAPD
+
+static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
+
+enum ieee80211_msg_type {
+ ieee80211_msg_normal = 0,
+ ieee80211_msg_tx_callback_ack = 1,
+ ieee80211_msg_tx_callback_fail = 2,
+};
+
+
+static int i802_sta_deauth(void *priv, const u8 *addr, int reason);
+static int i802_sta_disassoc(void *priv, const u8 *addr, int reason);
+
+
+static struct i802_bss * get_bss(struct wpa_driver_nl80211_data *drv,
+ const char *iface)
+{
+ struct i802_bss *bss = &drv->bss;
+ while (bss) {
+ if (os_strncmp(iface, bss->ifname, IFNAMSIZ) == 0)
+ return bss;
+ bss = bss->next;
}
+ wpa_printf(MSG_DEBUG, "nl80211: get_bss(%s) failed", iface);
+ return NULL;
+}
- if (left > 0) {
- wpa_printf(MSG_DEBUG, "%d extra bytes in the end of netlink "
- "message", left);
+
+static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
+{
+ int i;
+ int *old;
+
+ wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d",
+ ifidx);
+ for (i = 0; i < drv->num_if_indices; i++) {
+ if (drv->if_indices[i] == 0) {
+ drv->if_indices[i] = ifidx;
+ return;
+ }
}
- if (--max_events > 0) {
- /*
- * Try to receive all events in one eloop call in order to
- * limit race condition on cases where AssocInfo event, Assoc
- * event, and EAPOL frames are received more or less at the
- * same time. We want to process the event messages first
- * before starting EAPOL processing.
- */
- goto try_again;
+ if (drv->if_indices != drv->default_if_indices)
+ old = drv->if_indices;
+ else
+ old = NULL;
+
+ drv->if_indices = realloc(old,
+ sizeof(int) * (drv->num_if_indices + 1));
+ if (!drv->if_indices) {
+ if (!old)
+ drv->if_indices = drv->default_if_indices;
+ else
+ drv->if_indices = old;
+ wpa_printf(MSG_ERROR, "Failed to reallocate memory for "
+ "interfaces");
+ wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx);
+ return;
}
+ drv->if_indices[drv->num_if_indices] = ifidx;
+ drv->num_if_indices++;
}
-static int wpa_driver_nl80211_get_ifflags_ifname(struct wpa_driver_nl80211_data *drv,
- const char *ifname, int *flags)
+static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
{
- struct ifreq ifr;
+ int i;
- os_memset(&ifr, 0, sizeof(ifr));
- os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
- if (ioctl(drv->ioctl_sock, SIOCGIFFLAGS, (caddr_t) &ifr) < 0) {
- perror("ioctl[SIOCGIFFLAGS]");
- return -1;
+ for (i = 0; i < drv->num_if_indices; i++) {
+ if (drv->if_indices[i] == ifidx) {
+ drv->if_indices[i] = 0;
+ break;
+ }
}
- *flags = ifr.ifr_flags & 0xffff;
- return 0;
}
-/**
- * wpa_driver_nl80211_get_ifflags - Get interface flags (SIOCGIFFLAGS)
- * @drv: driver_nl80211 private data
- * @flags: Pointer to returned flags value
- * Returns: 0 on success, -1 on failure
- */
-static int wpa_driver_nl80211_get_ifflags(struct wpa_driver_nl80211_data *drv,
- int *flags)
+static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
{
- return wpa_driver_nl80211_get_ifflags_ifname(drv, drv->ifname, flags);
+ int i;
+
+ for (i = 0; i < drv->num_if_indices; i++)
+ if (drv->if_indices[i] == ifidx)
+ return 1;
+
+ return 0;
}
-static int wpa_driver_nl80211_set_ifflags_ifname(
- struct wpa_driver_nl80211_data *drv,
- const char *ifname, int flags)
+static int hostapd_set_iface_flags(struct wpa_driver_nl80211_data *drv,
+ const char *ifname, int dev_up)
{
struct ifreq ifr;
- os_memset(&ifr, 0, sizeof(ifr));
+ if (drv->ioctl_sock < 0)
+ return -1;
+
+ memset(&ifr, 0, sizeof(ifr));
os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
- ifr.ifr_flags = flags & 0xffff;
- if (ioctl(drv->ioctl_sock, SIOCSIFFLAGS, (caddr_t) &ifr) < 0) {
- perror("SIOCSIFFLAGS");
+
+ if (ioctl(drv->ioctl_sock, SIOCGIFFLAGS, &ifr) != 0) {
+ perror("ioctl[SIOCGIFFLAGS]");
+ wpa_printf(MSG_DEBUG, "Could not read interface flags (%s)",
+ drv->ifname);
return -1;
}
+
+ if (dev_up)
+ ifr.ifr_flags |= IFF_UP;
+ else
+ ifr.ifr_flags &= ~IFF_UP;
+
+ if (ioctl(drv->ioctl_sock, SIOCSIFFLAGS, &ifr) != 0) {
+ perror("ioctl[SIOCSIFFLAGS]");
+ return -1;
+ }
+
return 0;
}
-/**
- * wpa_driver_nl80211_set_ifflags - Set interface flags (SIOCSIFFLAGS)
- * @drv: driver_nl80211 private data
- * @flags: New value for flags
- * Returns: 0 on success, -1 on failure
- */
-static int wpa_driver_nl80211_set_ifflags(struct wpa_driver_nl80211_data *drv,
- int flags)
+static int i802_set_key(const char *iface, void *priv, wpa_alg alg,
+ const u8 *addr, int key_idx, int set_tx, const u8 *seq,
+ size_t seq_len, const u8 *key, size_t key_len)
{
- return wpa_driver_nl80211_set_ifflags_ifname(drv, drv->ifname, flags);
+ struct wpa_driver_nl80211_data *drv = priv;
+ return nl_set_encr(if_nametoindex(iface), drv, alg, addr, key_idx,
+ set_tx, seq, seq_len, key, key_len);
}
-/**
- * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain
- * @priv: driver_nl80211 private data
- * @alpha2_arg: country to which to switch to
- * Returns: 0 on success, -1 on failure
- *
- * This asks nl80211 to set the regulatory domain for given
- * country ISO / IEC alpha2.
- */
-static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg)
+static inline int min_int(int a, int b)
{
- struct wpa_driver_nl80211_data *drv = priv;
- char alpha2[3];
- struct nl_msg *msg;
+ if (a < b)
+ return a;
+ return b;
+}
- msg = nlmsg_alloc();
- if (!msg)
- goto nla_put_failure;
- alpha2[0] = alpha2_arg[0];
- alpha2[1] = alpha2_arg[1];
- alpha2[2] = '\0';
+static int get_key_handler(struct nl_msg *msg, void *arg)
+{
+ struct nlattr *tb[NL80211_ATTR_MAX + 1];
+ struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
- genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
- 0, NL80211_CMD_REQ_SET_REG, 0);
+ nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
+ genlmsg_attrlen(gnlh, 0), NULL);
- NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2);
- if (send_and_recv_msgs(drv, msg, NULL, NULL))
- return -EINVAL;
- return 0;
-nla_put_failure:
- return -EINVAL;
+ /*
+ * TODO: validate the key index and mac address!
+ * Otherwise, there's a race condition as soon as
+ * the kernel starts sending key notifications.
+ */
+
+ if (tb[NL80211_ATTR_KEY_SEQ])
+ memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]),
+ min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6));
+ return NL_SKIP;
}
-static int wpa_driver_nl80211_set_probe_req_ie(void *priv, const u8 *ies,
- size_t ies_len)
+static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr,
+ int idx, u8 *seq)
{
struct wpa_driver_nl80211_data *drv = priv;
struct nl_msg *msg;
- int ret = -1;
msg = nlmsg_alloc();
if (!msg)
return -ENOMEM;
- genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
- NL80211_CMD_SET_MGMT_EXTRA_IE, 0);
-
- NLA_PUT_U8(msg, NL80211_ATTR_MGMT_SUBTYPE, 4 /* ProbeReq */);
- if (ies)
- NLA_PUT(msg, NL80211_ATTR_IE, ies_len, ies);
-
- ret = 0;
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, NL80211_CMD_GET_KEY, 0);
- NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+ if (addr)
+ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
+ NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
- ret = send_and_recv_msgs(drv, msg, NULL, NULL);
- return ret;
+ memset(seq, 0, 6);
-nla_put_failure:
+ return send_and_recv_msgs(drv, msg, get_key_handler, seq);
+ nla_put_failure:
return -ENOBUFS;
}
-#ifdef CONFIG_CLIENT_MLME
-
-static int nl80211_set_vif(struct wpa_driver_nl80211_data *drv,
- int drop_unencrypted, int userspace_mlme)
+static int i802_set_rate_sets(void *priv, int *supp_rates, int *basic_rates,
+ int mode)
{
-#ifdef NL80211_CMD_SET_VIF
+ struct wpa_driver_nl80211_data *drv = priv;
struct nl_msg *msg;
- int ret = -1;
+ u8 rates[NL80211_MAX_SUPP_RATES];
+ u8 rates_len = 0;
+ int i;
msg = nlmsg_alloc();
if (!msg)
return -ENOMEM;
genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
- NL80211_CMD_SET_VIF, 0);
-
- if (drop_unencrypted >= 0)
- NLA_PUT_U8(msg, NL80211_ATTR_VIF_DROP_UNENCRYPTED,
- drop_unencrypted);
- if (userspace_mlme >= 0)
- NLA_PUT_U8(msg, NL80211_ATTR_VIF_USERSPACE_MLME,
- userspace_mlme);
+ NL80211_CMD_SET_BSS, 0);
- ret = 0;
+ for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; i++)
+ rates[rates_len++] = basic_rates[i] / 5;
- NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+ NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates);
- ret = send_and_recv_msgs(drv, msg, NULL, NULL);
- return ret;
+ /* TODO: multi-BSS support */
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->ifname));
-nla_put_failure:
+ return send_and_recv_msgs(drv, msg, NULL, NULL);
+ nla_put_failure:
return -ENOBUFS;
-#else /* NL80211_CMD_SET_VIF */
- return -1;
-#endif /* NL80211_CMD_SET_VIF */
-}
-
-
-static int wpa_driver_nl80211_set_userspace_mlme(
- struct wpa_driver_nl80211_data *drv, int enabled)
-{
- return nl80211_set_vif(drv, -1, enabled);
}
-static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv,
- int ifidx)
+/* Set kernel driver on given frequency (MHz) */
+static int i802_set_freq(void *priv, struct hostapd_freq_params *freq)
{
+ struct wpa_driver_nl80211_data *drv = priv;
struct nl_msg *msg;
msg = nlmsg_alloc();
if (!msg)
- goto nla_put_failure;
+ return -1;
+
+ drv->last_freq = freq->freq;
+ drv->last_freq_ht = freq->ht_enabled;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
+ NL80211_CMD_SET_WIPHY, 0);
+
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->ifname));
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq);
+ if (freq->ht_enabled) {
+ switch (freq->sec_channel_offset) {
+ case -1:
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
+ NL80211_CHAN_HT40MINUS);
+ break;
+ case 1:
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
+ NL80211_CHAN_HT40PLUS);
+ break;
+ default:
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
+ NL80211_CHAN_HT20);
+ break;
+ }
+ }
- genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
- 0, NL80211_CMD_DEL_INTERFACE, 0);
- NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx);
if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
- return;
-nla_put_failure:
- wpa_printf(MSG_ERROR, "nl80211: Failed to remove interface.");
+ return 0;
+ nla_put_failure:
+ return -1;
}
-static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv,
- const char *ifname, enum nl80211_iftype iftype)
+static int i802_set_rts(void *priv, int rts)
{
- struct nl_msg *msg, *flags = NULL;
- int ifidx, err;
- int ret = -ENOBUFS;
-
- msg = nlmsg_alloc();
- if (!msg)
- return -1;
-
- genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
- 0, NL80211_CMD_NEW_INTERFACE, 0);
- NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->ifname));
- NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname);
- NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype);
+ struct wpa_driver_nl80211_data *drv = priv;
+ struct iwreq iwr;
- if (iftype == NL80211_IFTYPE_MONITOR) {
- flags = nlmsg_alloc();
- if (!flags)
- goto nla_put_failure;
+ memset(&iwr, 0, sizeof(iwr));
+ os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
+ iwr.u.rts.value = rts;
+ iwr.u.rts.fixed = 1;
- NLA_PUT_FLAG(flags, NL80211_MNTR_FLAG_COOK_FRAMES);
+ if (ioctl(drv->ioctl_sock, SIOCSIWRTS, &iwr) < 0) {
+ perror("ioctl[SIOCSIWRTS]");
+ return -1;
+ }
- err = nla_put_nested(msg, NL80211_ATTR_MNTR_FLAGS, flags);
+ return 0;
+}
- nlmsg_free(flags);
- if (err)
- goto nla_put_failure;
- }
+static int i802_set_frag(void *priv, int frag)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+ struct iwreq iwr;
- ret = send_and_recv_msgs(drv, msg, NULL, NULL);
- if (ret) {
- nla_put_failure:
- wpa_printf(MSG_ERROR, "nl80211: Failed to create interface %d",
- ret);
- return ret;
- }
+ memset(&iwr, 0, sizeof(iwr));
+ os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
+ iwr.u.frag.value = frag;
+ iwr.u.frag.fixed = 1;
- ifidx = if_nametoindex(ifname);
- if (ifidx <= 0)
+ if (ioctl(drv->ioctl_sock, SIOCSIWFRAG, &iwr) < 0) {
+ perror("ioctl[SIOCSIWFRAG]");
return -1;
+ }
- return ifidx;
+ return 0;
}
-static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx)
+static int i802_set_retry(void *priv, int short_retry, int long_retry)
{
- struct wpa_driver_nl80211_data *drv = eloop_ctx;
- int len;
- unsigned char buf[3000];
- struct ieee80211_radiotap_iterator iter;
- int ret;
- int injected = 0, failed = 0, rxflags = 0;
- struct ieee80211_rx_status rx_status;
+ struct wpa_driver_nl80211_data *drv = priv;
+ struct iwreq iwr;
- len = recv(sock, buf, sizeof(buf), 0);
- if (len < 0) {
- perror("recv");
- return;
- }
+ memset(&iwr, 0, sizeof(iwr));
+ os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
- if (ieee80211_radiotap_iterator_init(&iter, (void *) buf, len)) {
- wpa_printf(MSG_DEBUG, "nl80211: received invalid radiotap "
- "frame");
- return;
+ iwr.u.retry.value = short_retry;
+ iwr.u.retry.flags = IW_RETRY_LIMIT | IW_RETRY_MIN;
+ if (ioctl(drv->ioctl_sock, SIOCSIWRETRY, &iwr) < 0) {
+ perror("ioctl[SIOCSIWRETRY(short)]");
+ return -1;
}
- os_memset(&rx_status, 0, sizeof(rx_status));
-
- while (1) {
- ret = ieee80211_radiotap_iterator_next(&iter);
- if (ret == -ENOENT)
- break;
- if (ret) {
- wpa_printf(MSG_DEBUG, "nl80211: received invalid "
- "radiotap frame (%d)", ret);
- return;
- }
- switch (iter.this_arg_index) {
- case IEEE80211_RADIOTAP_FLAGS:
- if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS)
- len -= 4;
- break;
- case IEEE80211_RADIOTAP_RX_FLAGS:
- rxflags = 1;
- break;
- case IEEE80211_RADIOTAP_TX_FLAGS:
- injected = 1;
- failed = le_to_host16((*(u16 *) iter.this_arg)) &
- IEEE80211_RADIOTAP_F_TX_FAIL;
- break;
- case IEEE80211_RADIOTAP_DATA_RETRIES:
- break;
- case IEEE80211_RADIOTAP_CHANNEL:
- /* TODO convert from freq/flags to channel number
- * rx_status.channel = XXX;
- */
- break;
- case IEEE80211_RADIOTAP_RATE:
- break;
- case IEEE80211_RADIOTAP_DB_ANTSIGNAL:
- rx_status.ssi = *iter.this_arg;
- break;
- }
+ iwr.u.retry.value = long_retry;
+ iwr.u.retry.flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
+ if (ioctl(drv->ioctl_sock, SIOCSIWRETRY, &iwr) < 0) {
+ perror("ioctl[SIOCSIWRETRY(long)]");
+ return -1;
}
- if (rxflags && injected)
- return;
-
- if (!injected) {
- wpa_supplicant_sta_rx(drv->ctx, buf + iter.max_length,
- len - iter.max_length, &rx_status);
- } else if (failed) {
- /* TX failure callback */
- } else {
- /* TX success (ACK) callback */
- }
+ return 0;
}
-static int wpa_driver_nl80211_create_monitor_interface(
- struct wpa_driver_nl80211_data *drv)
+static int i802_flush(void *priv)
{
- char buf[IFNAMSIZ];
- struct sockaddr_ll ll;
- int optval, flags;
- socklen_t optlen;
+ struct wpa_driver_nl80211_data *drv = priv;
+ struct nl_msg *msg;
- os_snprintf(buf, IFNAMSIZ, "mon.%s", drv->ifname);
- buf[IFNAMSIZ - 1] = '\0';
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -1;
- drv->monitor_ifidx =
- nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR);
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, NL80211_CMD_DEL_STATION, 0);
- if (drv->monitor_ifidx < 0)
- return -1;
+ /*
+ * XXX: FIX! this needs to flush all VLANs too
+ */
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
+ if_nametoindex(drv->ifname));
- if (wpa_driver_nl80211_get_ifflags_ifname(drv, buf, &flags) != 0 ||
- wpa_driver_nl80211_set_ifflags_ifname(drv, buf, flags | IFF_UP) !=
- 0) {
- wpa_printf(MSG_ERROR, "nl80211: Could not set interface '%s' "
- "UP", buf);
- goto error;
- }
+ return send_and_recv_msgs(drv, msg, NULL, NULL);
+ nla_put_failure:
+ return -ENOBUFS;
+}
- os_memset(&ll, 0, sizeof(ll));
- ll.sll_family = AF_PACKET;
- ll.sll_ifindex = drv->monitor_ifidx;
- drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
- if (drv->monitor_sock < 0) {
- perror("socket[PF_PACKET,SOCK_RAW]");
- goto error;
- }
- if (bind(drv->monitor_sock, (struct sockaddr *) &ll,
- sizeof(ll)) < 0) {
- perror("monitor socket bind");
- goto error;
- }
+static int get_sta_handler(struct nl_msg *msg, void *arg)
+{
+ struct nlattr *tb[NL80211_ATTR_MAX + 1];
+ struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
+ struct hostap_sta_driver_data *data = arg;
+ struct nlattr *stats[NL80211_STA_INFO_MAX + 1];
+ static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
+ [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 },
+ [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 },
+ [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 },
+ [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 },
+ [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 },
+ };
- optlen = sizeof(optval);
- optval = 20;
- if (setsockopt
- (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) {
- perror("Failed to set socket priority");
- goto error;
- }
+ nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
+ genlmsg_attrlen(gnlh, 0), NULL);
- if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read,
- drv, NULL)) {
- wpa_printf(MSG_ERROR, "nl80211: Could not register monitor "
- "read socket");
- goto error;
+ /*
+ * TODO: validate the interface and mac address!
+ * Otherwise, there's a race condition as soon as
+ * the kernel starts sending station notifications.
+ */
+
+ if (!tb[NL80211_ATTR_STA_INFO]) {
+ wpa_printf(MSG_DEBUG, "sta stats missing!");
+ return NL_SKIP;
+ }
+ if (nla_parse_nested(stats, NL80211_STA_INFO_MAX,
+ tb[NL80211_ATTR_STA_INFO],
+ stats_policy)) {
+ wpa_printf(MSG_DEBUG, "failed to parse nested attributes!");
+ return NL_SKIP;
}
- return 0;
+ if (stats[NL80211_STA_INFO_INACTIVE_TIME])
+ data->inactive_msec =
+ nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]);
+ if (stats[NL80211_STA_INFO_RX_BYTES])
+ data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]);
+ if (stats[NL80211_STA_INFO_TX_BYTES])
+ data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]);
+ if (stats[NL80211_STA_INFO_RX_PACKETS])
+ data->rx_packets =
+ nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]);
+ if (stats[NL80211_STA_INFO_TX_PACKETS])
+ data->tx_packets =
+ nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]);
- error:
- nl80211_remove_iface(drv, drv->monitor_ifidx);
- return -1;
+ return NL_SKIP;
}
-#endif /* CONFIG_CLIENT_MLME */
+static int i802_read_sta_data(void *priv, struct hostap_sta_driver_data *data,
+ const u8 *addr)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+ struct nl_msg *msg;
+ os_memset(data, 0, sizeof(*data));
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
-/**
- * wpa_driver_nl80211_init - Initialize nl80211 driver interface
- * @ctx: context to be used when calling wpa_supplicant functions,
- * e.g., wpa_supplicant_event()
- * @ifname: interface name, e.g., wlan0
- * Returns: Pointer to private data, %NULL on failure
- */
-static void * wpa_driver_nl80211_init(void *ctx, const char *ifname)
-{
- int s;
- struct sockaddr_nl local;
- struct wpa_driver_nl80211_data *drv;
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, NL80211_CMD_GET_STATION, 0);
- drv = os_zalloc(sizeof(*drv));
- if (drv == NULL)
- return NULL;
- drv->ctx = ctx;
- os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname));
+ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->ifname));
- drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
- if (drv->nl_cb == NULL) {
- wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
- "callbacks");
- goto err1;
- }
+ return send_and_recv_msgs(drv, msg, get_sta_handler, data);
+ nla_put_failure:
+ return -ENOBUFS;
+}
- drv->nl_handle = nl_handle_alloc_cb(drv->nl_cb);
- if (drv->nl_handle == NULL) {
- wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
- "callbacks");
- goto err2;
- }
- if (genl_connect(drv->nl_handle)) {
- wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic "
- "netlink");
- goto err3;
- }
+static int i802_send_eapol(void *priv, const u8 *addr, const u8 *data,
+ size_t data_len, int encrypt, const u8 *own_addr)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+ struct ieee80211_hdr *hdr;
+ size_t len;
+ u8 *pos;
+ int res;
+#if 0 /* FIX */
+ int qos = sta->flags & WLAN_STA_WME;
+#else
+ int qos = 0;
+#endif
- drv->nl_cache = genl_ctrl_alloc_cache(drv->nl_handle);
- if (drv->nl_cache == NULL) {
- wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
- "netlink cache");
- goto err3;
+ len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 +
+ data_len;
+ hdr = os_zalloc(len);
+ if (hdr == NULL) {
+ printf("malloc() failed for i802_send_data(len=%lu)\n",
+ (unsigned long) len);
+ return -1;
}
- drv->nl80211 = genl_ctrl_search_by_name(drv->nl_cache, "nl80211");
- if (drv->nl80211 == NULL) {
- wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not "
- "found");
- goto err4;
+ hdr->frame_control =
+ IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA);
+ hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS);
+ if (encrypt)
+ hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP);
+#if 0 /* To be enabled if qos determination is added above */
+ if (qos) {
+ hdr->frame_control |=
+ host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4);
}
+#endif
- drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
- if (drv->ioctl_sock < 0) {
- perror("socket(PF_INET,SOCK_DGRAM)");
- goto err5;
+ memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN);
+ memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
+ memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
+ pos = (u8 *) (hdr + 1);
+
+#if 0 /* To be enabled if qos determination is added above */
+ if (qos) {
+ /* add an empty QoS header if needed */
+ pos[0] = 0;
+ pos[1] = 0;
+ pos += 2;
}
+#endif
- s = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
- if (s < 0) {
- perror("socket(PF_NETLINK,SOCK_RAW,NETLINK_ROUTE)");
- goto err6;
+ memcpy(pos, rfc1042_header, sizeof(rfc1042_header));
+ pos += sizeof(rfc1042_header);
+ WPA_PUT_BE16(pos, ETH_P_PAE);
+ pos += 2;
+ memcpy(pos, data, data_len);
+
+ res = wpa_driver_nl80211_send_frame(drv, (u8 *) hdr, len, encrypt);
+ if (res < 0) {
+ wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - "
+ "failed: %d (%s)",
+ (unsigned long) len, errno, strerror(errno));
}
+ free(hdr);
- os_memset(&local, 0, sizeof(local));
- local.nl_family = AF_NETLINK;
- local.nl_groups = RTMGRP_LINK;
- if (bind(s, (struct sockaddr *) &local, sizeof(local)) < 0) {
- perror("bind(netlink)");
- close(s);
- goto err6;
+ return res;
+}
+
+
+static int i802_sta_add(const char *ifname, void *priv,
+ struct hostapd_sta_add_params *params)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+ struct nl_msg *msg;
+ int ret = -ENOBUFS;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, NL80211_CMD_NEW_STATION, 0);
+
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
+ if_nametoindex(drv->ifname));
+ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr);
+ NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid);
+ NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len,
+ params->supp_rates);
+ NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL,
+ params->listen_interval);
+
+#ifdef CONFIG_IEEE80211N
+ if (params->ht_capabilities) {
+ NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY,
+ params->ht_capabilities->length,
+ ¶ms->ht_capabilities->data);
}
+#endif /* CONFIG_IEEE80211N */
- eloop_register_read_sock(s, wpa_driver_nl80211_event_receive, drv,
- ctx);
- drv->event_sock = s;
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ if (ret)
+ wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_NEW_STATION "
+ "result: %d (%s)", ret, strerror(-ret));
+ if (ret == -EEXIST)
+ ret = 0;
+ nla_put_failure:
+ return ret;
+}
- wpa_driver_nl80211_finish_drv_init(drv);
- return drv;
+static int i802_sta_remove(void *priv, const u8 *addr)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+ struct nl_msg *msg;
+ int ret;
-err6:
- close(drv->ioctl_sock);
-err5:
- genl_family_put(drv->nl80211);
-err4:
- nl_cache_free(drv->nl_cache);
-err3:
- nl_handle_destroy(drv->nl_handle);
-err2:
- nl_cb_put(drv->nl_cb);
-err1:
- os_free(drv);
- return NULL;
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, NL80211_CMD_DEL_STATION, 0);
+
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
+ if_nametoindex(drv->ifname));
+ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
+
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ if (ret == -ENOENT)
+ return 0;
+ return ret;
+ nla_put_failure:
+ return -ENOBUFS;
}
-static void
-wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv)
+static int i802_sta_set_flags(void *priv, const u8 *addr,
+ int total_flags, int flags_or, int flags_and)
{
- int flags;
+ struct wpa_driver_nl80211_data *drv = priv;
+ struct nl_msg *msg, *flags = NULL;
- if (wpa_driver_nl80211_get_ifflags(drv, &flags) != 0)
- printf("Could not get interface '%s' flags\n", drv->ifname);
- else if (!(flags & IFF_UP)) {
- if (wpa_driver_nl80211_set_ifflags(drv, flags | IFF_UP) != 0) {
- printf("Could not set interface '%s' UP\n",
- drv->ifname);
- } else {
- /*
- * Wait some time to allow driver to initialize before
- * starting configuring the driver. This seems to be
- * needed at least some drivers that load firmware etc.
- * when the interface is set up.
- */
- wpa_printf(MSG_DEBUG, "Interface %s set UP - waiting "
- "a second for the driver to complete "
- "initialization", drv->ifname);
- sleep(1);
- }
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
+
+ flags = nlmsg_alloc();
+ if (!flags) {
+ nlmsg_free(msg);
+ return -ENOMEM;
}
- /*
- * Make sure that the driver does not have any obsolete PMKID entries.
- */
- wpa_driver_nl80211_flush_pmkid(drv);
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, NL80211_CMD_SET_STATION, 0);
- if (wpa_driver_nl80211_set_mode(drv, 0) < 0) {
- printf("Could not configure driver to use managed mode\n");
- }
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
+ if_nametoindex(drv->ifname));
+ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
- wpa_driver_nl80211_get_range(drv);
+ if (total_flags & WLAN_STA_AUTHORIZED)
+ NLA_PUT_FLAG(flags, NL80211_STA_FLAG_AUTHORIZED);
- drv->ifindex = if_nametoindex(drv->ifname);
+ if (total_flags & WLAN_STA_WMM)
+ NLA_PUT_FLAG(flags, NL80211_STA_FLAG_WME);
- wpa_driver_nl80211_send_oper_ifla(drv, 1, IF_OPER_DORMANT);
+ if (total_flags & WLAN_STA_SHORT_PREAMBLE)
+ NLA_PUT_FLAG(flags, NL80211_STA_FLAG_SHORT_PREAMBLE);
+
+ if (total_flags & WLAN_STA_MFP)
+ NLA_PUT_FLAG(flags, NL80211_STA_FLAG_MFP);
+
+ if (nla_put_nested(msg, NL80211_ATTR_STA_FLAGS, flags))
+ goto nla_put_failure;
+
+ nlmsg_free(flags);
+
+ return send_and_recv_msgs(drv, msg, NULL, NULL);
+ nla_put_failure:
+ nlmsg_free(flags);
+ return -ENOBUFS;
}
-/**
- * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface
- * @priv: Pointer to private nl80211 data from wpa_driver_nl80211_init()
- *
- * Shut down driver interface and processing of driver events. Free
- * private data buffer if one was allocated in wpa_driver_nl80211_init().
- */
-static void wpa_driver_nl80211_deinit(void *priv)
+static int i802_set_tx_queue_params(void *priv, int queue, int aifs,
+ int cw_min, int cw_max, int burst_time)
{
struct wpa_driver_nl80211_data *drv = priv;
- int flags;
+ struct nl_msg *msg;
+ struct nlattr *txq, *params;
-#ifdef CONFIG_CLIENT_MLME
- if (drv->monitor_sock >= 0) {
- eloop_unregister_read_sock(drv->monitor_sock);
- close(drv->monitor_sock);
- }
- if (drv->monitor_ifidx > 0)
- nl80211_remove_iface(drv, drv->monitor_ifidx);
- if (drv->capa.flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME)
- wpa_driver_nl80211_set_userspace_mlme(drv, 0);
-#endif /* CONFIG_CLIENT_MLME */
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -1;
- eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, NL80211_CMD_SET_WIPHY, 0);
- /*
- * Clear possibly configured driver parameters in order to make it
- * easier to use the driver after wpa_supplicant has been terminated.
- */
- (void) wpa_driver_nl80211_set_bssid(drv,
- (u8 *) "\x00\x00\x00\x00\x00\x00");
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->ifname));
- wpa_driver_nl80211_send_oper_ifla(priv, 0, IF_OPER_UP);
+ txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS);
+ if (!txq)
+ goto nla_put_failure;
- eloop_unregister_read_sock(drv->event_sock);
+ /* We are only sending parameters for a single TXQ at a time */
+ params = nla_nest_start(msg, 1);
+ if (!params)
+ goto nla_put_failure;
- if (wpa_driver_nl80211_get_ifflags(drv, &flags) == 0)
- (void) wpa_driver_nl80211_set_ifflags(drv, flags & ~IFF_UP);
+ NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, queue);
+ /* Burst time is configured in units of 0.1 msec and TXOP parameter in
+ * 32 usec, so need to convert the value here. */
+ NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32);
+ NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min);
+ NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max);
+ NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs);
- close(drv->event_sock);
- close(drv->ioctl_sock);
- os_free(drv->assoc_req_ies);
- os_free(drv->assoc_resp_ies);
+ nla_nest_end(msg, params);
- genl_family_put(drv->nl80211);
- nl_cache_free(drv->nl_cache);
- nl_handle_destroy(drv->nl_handle);
- nl_cb_put(drv->nl_cb);
+ nla_nest_end(msg, txq);
- os_free(drv);
+ if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
+ return 0;
+ nla_put_failure:
+ return -1;
}
-/**
- * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion
- * @eloop_ctx: Unused
- * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init()
- *
- * This function can be used as registered timeout when starting a scan to
- * generate a scan completed event if the driver does not report this.
- */
-static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx)
+static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv, int ifidx)
{
- wpa_printf(MSG_DEBUG, "Scan timeout - try to get results");
- wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL);
+ struct nl_msg *msg;
+
+ /* stop listening for EAPOL on this interface */
+ del_ifidx(drv, ifidx);
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ goto nla_put_failure;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, NL80211_CMD_DEL_INTERFACE, 0);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx);
+
+ if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
+ return;
+ nla_put_failure:
+ printf("Failed to remove interface.\n");
}
-/**
- * wpa_driver_nl80211_scan - Request the driver to initiate scan
- * @priv: Pointer to private wext data from wpa_driver_nl80211_init()
- * @ssid: Specific SSID to scan for (ProbeReq) or %NULL to scan for
- * all SSIDs (either active scan with broadcast SSID or passive
- * scan
- * @ssid_len: Length of the SSID
- * Returns: 0 on success, -1 on failure
- */
-static int wpa_driver_nl80211_scan(void *priv, const u8 *ssid, size_t ssid_len)
+static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv,
+ const char *ifname,
+ enum nl80211_iftype iftype,
+ const u8 *addr)
{
- struct wpa_driver_nl80211_data *drv = priv;
+ struct nl_msg *msg, *flags = NULL;
+ int ifidx;
+ struct ifreq ifreq;
struct iwreq iwr;
- int ret = 0, timeout;
- struct iw_scan_req req;
+ int ret = -ENOBUFS;
- if (ssid_len > IW_ESSID_MAX_SIZE) {
- wpa_printf(MSG_DEBUG, "%s: too long SSID (%lu)",
- __FUNCTION__, (unsigned long) ssid_len);
+ msg = nlmsg_alloc();
+ if (!msg)
return -1;
- }
- os_memset(&iwr, 0, sizeof(iwr));
- os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, NL80211_CMD_NEW_INTERFACE, 0);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->ifname));
+ NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype);
- if (ssid && ssid_len) {
- os_memset(&req, 0, sizeof(req));
- req.essid_len = ssid_len;
- req.bssid.sa_family = ARPHRD_ETHER;
- os_memset(req.bssid.sa_data, 0xff, ETH_ALEN);
- os_memcpy(req.essid, ssid, ssid_len);
- iwr.u.data.pointer = (caddr_t) &req;
- iwr.u.data.length = sizeof(req);
- iwr.u.data.flags = IW_SCAN_THIS_ESSID;
- }
+ if (iftype == NL80211_IFTYPE_MONITOR) {
+ int err;
- if (ioctl(drv->ioctl_sock, SIOCSIWSCAN, &iwr) < 0) {
- perror("ioctl[SIOCSIWSCAN]");
- ret = -1;
+ flags = nlmsg_alloc();
+ if (!flags)
+ goto nla_put_failure;
+
+ NLA_PUT_FLAG(flags, NL80211_MNTR_FLAG_COOK_FRAMES);
+
+ err = nla_put_nested(msg, NL80211_ATTR_MNTR_FLAGS, flags);
+
+ nlmsg_free(flags);
+
+ if (err)
+ goto nla_put_failure;
}
- /* Not all drivers generate "scan completed" wireless event, so try to
- * read results after a timeout. */
- timeout = 5;
- if (drv->scan_complete_events) {
- /*
- * The driver seems to deliver SIOCGIWSCAN events to notify
- * when scan is complete, so use longer timeout to avoid race
- * conditions with scanning and following association request.
- */
- timeout = 30;
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ if (ret) {
+ nla_put_failure:
+ printf("Failed to create interface %s.\n", ifname);
+ return ret;
}
- wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d "
- "seconds", ret, timeout);
- eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
- eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout, drv,
- drv->ctx);
- return ret;
-}
+ ifidx = if_nametoindex(ifname);
+ if (ifidx <= 0)
+ return -1;
-static u8 * wpa_driver_nl80211_giwscan(struct wpa_driver_nl80211_data *drv,
- size_t *len)
-{
- struct iwreq iwr;
- u8 *res_buf;
- size_t res_buf_len;
+ /* start listening for EAPOL on this interface */
+ add_ifidx(drv, ifidx);
- res_buf_len = IW_SCAN_MAX_DATA;
- for (;;) {
- res_buf = os_malloc(res_buf_len);
- if (res_buf == NULL)
- return NULL;
- os_memset(&iwr, 0, sizeof(iwr));
- os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
- iwr.u.data.pointer = res_buf;
- iwr.u.data.length = res_buf_len;
+ if (addr) {
+ switch (iftype) {
+ case NL80211_IFTYPE_AP:
+ os_strlcpy(ifreq.ifr_name, ifname, IFNAMSIZ);
+ memcpy(ifreq.ifr_hwaddr.sa_data, addr, ETH_ALEN);
+ ifreq.ifr_hwaddr.sa_family = ARPHRD_ETHER;
- if (ioctl(drv->ioctl_sock, SIOCGIWSCAN, &iwr) == 0)
+ if (ioctl(drv->ioctl_sock, SIOCSIFHWADDR, &ifreq)) {
+ nl80211_remove_iface(drv, ifidx);
+ return -1;
+ }
+ break;
+ case NL80211_IFTYPE_WDS:
+ memset(&iwr, 0, sizeof(iwr));
+ os_strlcpy(iwr.ifr_name, ifname, IFNAMSIZ);
+ iwr.u.addr.sa_family = ARPHRD_ETHER;
+ memcpy(iwr.u.addr.sa_data, addr, ETH_ALEN);
+ if (ioctl(drv->ioctl_sock, SIOCSIWAP, &iwr))
+ return -1;
+ break;
+ default:
+ /* nothing */
break;
-
- if (errno == E2BIG && res_buf_len < 65535) {
- os_free(res_buf);
- res_buf = NULL;
- res_buf_len *= 2;
- if (res_buf_len > 65535)
- res_buf_len = 65535; /* 16-bit length field */
- wpa_printf(MSG_DEBUG, "Scan results did not fit - "
- "trying larger buffer (%lu bytes)",
- (unsigned long) res_buf_len);
- } else {
- perror("ioctl[SIOCGIWSCAN]");
- os_free(res_buf);
- return NULL;
}
}
- if (iwr.u.data.length > res_buf_len) {
- os_free(res_buf);
- return NULL;
- }
- *len = iwr.u.data.length;
-
- return res_buf;
+ return ifidx;
}
-/*
- * Data structure for collecting WEXT scan results. This is needed to allow
- * the various methods of reporting IEs to be combined into a single IE buffer.
- */
-struct wext_scan_data {
- struct wpa_scan_res res;
- u8 *ie;
- size_t ie_len;
- u8 ssid[32];
- size_t ssid_len;
- int maxrate;
-};
+static int i802_bss_add(void *priv, const char *ifname, const u8 *bssid)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+ int ifidx;
+ struct i802_bss *bss;
+ bss = os_zalloc(sizeof(*bss));
+ if (bss == NULL)
+ return -1;
+ os_strlcpy(bss->ifname, ifname, IFNAMSIZ);
-static void wext_get_scan_mode(struct iw_event *iwe,
- struct wext_scan_data *res)
-{
- if (iwe->u.mode == IW_MODE_ADHOC)
- res->res.caps |= IEEE80211_CAP_IBSS;
- else if (iwe->u.mode == IW_MODE_MASTER || iwe->u.mode == IW_MODE_INFRA)
- res->res.caps |= IEEE80211_CAP_ESS;
+ ifidx = nl80211_create_iface(priv, ifname, NL80211_IFTYPE_AP, bssid);
+ if (ifidx < 0) {
+ os_free(bss);
+ return -1;
+ }
+ if (hostapd_set_iface_flags(priv, ifname, 1)) {
+ nl80211_remove_iface(priv, ifidx);
+ os_free(bss);
+ return -1;
+ }
+ bss->next = drv->bss.next;
+ drv->bss.next = bss;
+ return 0;
}
-static void wext_get_scan_ssid(struct iw_event *iwe,
- struct wext_scan_data *res, char *custom,
- char *end)
+static int i802_bss_remove(void *priv, const char *ifname)
{
- int ssid_len = iwe->u.essid.length;
- if (custom + ssid_len > end)
- return;
- if (iwe->u.essid.flags &&
- ssid_len > 0 &&
- ssid_len <= IW_ESSID_MAX_SIZE) {
- os_memcpy(res->ssid, custom, ssid_len);
- res->ssid_len = ssid_len;
+ struct wpa_driver_nl80211_data *drv = priv;
+ struct i802_bss *bss, *prev;
+ nl80211_remove_iface(priv, if_nametoindex(ifname));
+ prev = &drv->bss;
+ bss = drv->bss.next;
+ while (bss) {
+ if (os_strncmp(ifname, bss->ifname, IFNAMSIZ) == 0) {
+ prev->next = bss->next;
+ os_free(bss);
+ break;
+ }
+ prev = bss;
+ bss = bss->next;
}
+ return 0;
}
-static void wext_get_scan_freq(struct iw_event *iwe,
- struct wext_scan_data *res)
+static int i802_set_beacon(const char *iface, void *priv,
+ const u8 *head, size_t head_len,
+ const u8 *tail, size_t tail_len, int dtim_period)
{
- int divi = 1000000, i;
+ struct wpa_driver_nl80211_data *drv = priv;
+ struct nl_msg *msg;
+ u8 cmd = NL80211_CMD_NEW_BEACON;
+ int ret;
+ struct i802_bss *bss;
- if (iwe->u.freq.e == 0) {
- /*
- * Some drivers do not report frequency, but a channel.
- * Try to map this to frequency by assuming they are using
- * IEEE 802.11b/g. But don't overwrite a previously parsed
- * frequency if the driver sends both frequency and channel,
- * since the driver may be sending an A-band channel that we
- * don't handle here.
- */
+ bss = get_bss(drv, iface);
+ if (bss == NULL)
+ return -ENOENT;
- if (res->res.freq)
- return;
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
- if (iwe->u.freq.m >= 1 && iwe->u.freq.m <= 13) {
- res->res.freq = 2407 + 5 * iwe->u.freq.m;
- return;
- } else if (iwe->u.freq.m == 14) {
- res->res.freq = 2484;
- return;
- }
- }
+ wpa_printf(MSG_DEBUG, "nl80211: Set beacon (iface=%s beacon_set=%d)",
+ iface, bss->beacon_set);
+ if (bss->beacon_set)
+ cmd = NL80211_CMD_SET_BEACON;
- if (iwe->u.freq.e > 6) {
- wpa_printf(MSG_DEBUG, "Invalid freq in scan results (BSSID="
- MACSTR " m=%d e=%d)",
- MAC2STR(res->res.bssid), iwe->u.freq.m,
- iwe->u.freq.e);
- return;
- }
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, cmd, 0);
+ NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, head_len, head);
+ NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, tail_len, tail);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
+ NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, drv->beacon_int);
+ NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, dtim_period);
- for (i = 0; i < iwe->u.freq.e; i++)
- divi /= 10;
- res->res.freq = iwe->u.freq.m / divi;
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ if (!ret)
+ bss->beacon_set = 1;
+ return ret;
+ nla_put_failure:
+ return -ENOBUFS;
}
-static void wext_get_scan_qual(struct iw_event *iwe,
- struct wext_scan_data *res)
+static int i802_del_beacon(struct wpa_driver_nl80211_data *drv)
{
- res->res.qual = iwe->u.qual.qual;
- res->res.noise = iwe->u.qual.noise;
- res->res.level = iwe->u.qual.level;
-}
+ struct nl_msg *msg;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, NL80211_CMD_DEL_BEACON, 0);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->ifname));
-static void wext_get_scan_encode(struct iw_event *iwe,
- struct wext_scan_data *res)
-{
- if (!(iwe->u.data.flags & IW_ENCODE_DISABLED))
- res->res.caps |= IEEE80211_CAP_PRIVACY;
+ return send_and_recv_msgs(drv, msg, NULL, NULL);
+ nla_put_failure:
+ return -ENOBUFS;
}
-static void wext_get_scan_rate(struct iw_event *iwe,
- struct wext_scan_data *res, char *pos,
- char *end)
+static int i802_set_beacon_int(void *priv, int value)
{
- int maxrate;
- char *custom = pos + IW_EV_LCP_LEN;
- struct iw_param p;
- size_t clen;
+ struct wpa_driver_nl80211_data *drv = priv;
+ struct nl_msg *msg;
- clen = iwe->len;
- if (custom + clen > end)
- return;
- maxrate = 0;
- while (((ssize_t) clen) >= (ssize_t) sizeof(struct iw_param)) {
- /* Note: may be misaligned, make a local, aligned copy */
- os_memcpy(&p, custom, sizeof(struct iw_param));
- if (p.value > maxrate)
- maxrate = p.value;
- clen -= sizeof(struct iw_param);
- custom += sizeof(struct iw_param);
- }
-
- /* Convert the maxrate from WE-style (b/s units) to
- * 802.11 rates (500000 b/s units).
- */
- res->maxrate = maxrate / 500000;
+ drv->beacon_int = value;
+
+ if (!drv->bss.beacon_set)
+ return 0;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
+
+ wpa_printf(MSG_DEBUG, "nl80211: Set beacon interval %d "
+ "(beacon_set=%d)", value, drv->bss.beacon_set);
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, NL80211_CMD_SET_BEACON, 0);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->ifname));
+
+ NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, value);
+
+ return send_and_recv_msgs(drv, msg, NULL, NULL);
+ nla_put_failure:
+ return -ENOBUFS;
}
-static void wext_get_scan_iwevgenie(struct iw_event *iwe,
- struct wext_scan_data *res, char *custom,
- char *end)
+static int i802_set_bss(void *priv, int cts, int preamble, int slot)
{
- char *genie, *gpos, *gend;
- u8 *tmp;
+ struct wpa_driver_nl80211_data *drv = priv;
+ struct nl_msg *msg;
- if (iwe->u.data.length == 0)
- return;
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
- gpos = genie = custom;
- gend = genie + iwe->u.data.length;
- if (gend > end) {
- wpa_printf(MSG_INFO, "IWEVGENIE overflow");
- return;
- }
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
+ NL80211_CMD_SET_BSS, 0);
- tmp = os_realloc(res->ie, res->ie_len + gend - gpos);
- if (tmp == NULL)
- return;
- os_memcpy(tmp + res->ie_len, gpos, gend - gpos);
- res->ie = tmp;
- res->ie_len += gend - gpos;
+ if (cts >= 0)
+ NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts);
+ if (preamble >= 0)
+ NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble);
+ if (slot >= 0)
+ NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot);
+
+ /* TODO: multi-BSS support */
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->ifname));
+
+ return send_and_recv_msgs(drv, msg, NULL, NULL);
+ nla_put_failure:
+ return -ENOBUFS;
}
-static void wext_get_scan_custom(struct iw_event *iwe,
- struct wext_scan_data *res, char *custom,
- char *end)
+static int i802_set_cts_protect(void *priv, int value)
{
- size_t clen;
- u8 *tmp;
+ return i802_set_bss(priv, value, -1, -1);
+}
- clen = iwe->u.data.length;
- if (custom + clen > end)
- return;
- if (clen > 7 && os_strncmp(custom, "wpa_ie=", 7) == 0) {
- char *spos;
- int bytes;
- spos = custom + 7;
- bytes = custom + clen - spos;
- if (bytes & 1 || bytes == 0)
- return;
- bytes /= 2;
- tmp = os_realloc(res->ie, res->ie_len + bytes);
- if (tmp == NULL)
- return;
- hexstr2bin(spos, tmp + res->ie_len, bytes);
- res->ie = tmp;
- res->ie_len += bytes;
- } else if (clen > 7 && os_strncmp(custom, "rsn_ie=", 7) == 0) {
- char *spos;
- int bytes;
- spos = custom + 7;
- bytes = custom + clen - spos;
- if (bytes & 1 || bytes == 0)
- return;
- bytes /= 2;
- tmp = os_realloc(res->ie, res->ie_len + bytes);
- if (tmp == NULL)
- return;
- hexstr2bin(spos, tmp + res->ie_len, bytes);
- res->ie = tmp;
- res->ie_len += bytes;
- } else if (clen > 4 && os_strncmp(custom, "tsf=", 4) == 0) {
- char *spos;
- int bytes;
- u8 bin[8];
- spos = custom + 4;
- bytes = custom + clen - spos;
- if (bytes != 16) {
- wpa_printf(MSG_INFO, "Invalid TSF length (%d)", bytes);
- return;
- }
- bytes /= 2;
- hexstr2bin(spos, bin, bytes);
- res->res.tsf += WPA_GET_BE64(bin);
- }
+static int i802_set_preamble(void *priv, int value)
+{
+ return i802_set_bss(priv, -1, value, -1);
}
-static int wext_19_iw_point(struct wpa_driver_nl80211_data *drv, u16 cmd)
+static int i802_set_short_slot_time(void *priv, int value)
{
- return drv->we_version_compiled > 18 &&
- (cmd == SIOCGIWESSID || cmd == SIOCGIWENCODE ||
- cmd == IWEVGENIE || cmd == IWEVCUSTOM);
+ return i802_set_bss(priv, -1, -1, value);
}
-static void wpa_driver_nl80211_add_scan_entry(struct wpa_scan_results *res,
- struct wext_scan_data *data)
+static enum nl80211_iftype i802_if_type(enum hostapd_driver_if_type type)
{
- struct wpa_scan_res **tmp;
- struct wpa_scan_res *r;
- size_t extra_len;
- u8 *pos, *end, *ssid_ie = NULL, *rate_ie = NULL;
-
- /* Figure out whether we need to fake any IEs */
- pos = data->ie;
- end = pos + data->ie_len;
- while (pos && pos + 1 < end) {
- if (pos + 2 + pos[1] > end)
- break;
- if (pos[0] == WLAN_EID_SSID)
- ssid_ie = pos;
- else if (pos[0] == WLAN_EID_SUPP_RATES)
- rate_ie = pos;
- else if (pos[0] == WLAN_EID_EXT_SUPP_RATES)
- rate_ie = pos;
- pos += 2 + pos[1];
- }
-
- extra_len = 0;
- if (ssid_ie == NULL)
- extra_len += 2 + data->ssid_len;
- if (rate_ie == NULL && data->maxrate)
- extra_len += 3;
-
- r = os_zalloc(sizeof(*r) + extra_len + data->ie_len);
- if (r == NULL)
- return;
- os_memcpy(r, &data->res, sizeof(*r));
- r->ie_len = extra_len + data->ie_len;
- pos = (u8 *) (r + 1);
- if (ssid_ie == NULL) {
- /*
- * Generate a fake SSID IE since the driver did not report
- * a full IE list.
- */
- *pos++ = WLAN_EID_SSID;
- *pos++ = data->ssid_len;
- os_memcpy(pos, data->ssid, data->ssid_len);
- pos += data->ssid_len;
- }
- if (rate_ie == NULL && data->maxrate) {
- /*
- * Generate a fake Supported Rates IE since the driver did not
- * report a full IE list.
- */
- *pos++ = WLAN_EID_SUPP_RATES;
- *pos++ = 1;
- *pos++ = data->maxrate;
+ switch (type) {
+ case HOSTAPD_IF_VLAN:
+ return NL80211_IFTYPE_AP_VLAN;
+ case HOSTAPD_IF_WDS:
+ return NL80211_IFTYPE_WDS;
}
- if (data->ie)
- os_memcpy(pos, data->ie, data->ie_len);
+ return -1;
+}
- tmp = os_realloc(res->res,
- (res->num + 1) * sizeof(struct wpa_scan_res *));
- if (tmp == NULL) {
- os_free(r);
- return;
- }
- tmp[res->num++] = r;
- res->res = tmp;
+
+static int i802_if_add(const char *iface, void *priv,
+ enum hostapd_driver_if_type type, char *ifname,
+ const u8 *addr)
+{
+ if (nl80211_create_iface(priv, ifname, i802_if_type(type), addr) < 0)
+ return -1;
+ return 0;
}
-
-/**
- * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results
- * @priv: Pointer to private wext data from wpa_driver_nl80211_init()
- * Returns: Scan results on success, -1 on failure
- */
-static struct wpa_scan_results *
-wpa_driver_nl80211_get_scan_results(void *priv)
+
+static int i802_if_update(void *priv, enum hostapd_driver_if_type type,
+ char *ifname, const u8 *addr)
{
- struct wpa_driver_nl80211_data *drv = priv;
- size_t ap_num = 0, len;
- int first;
- u8 *res_buf;
- struct iw_event iwe_buf, *iwe = &iwe_buf;
- char *pos, *end, *custom;
- struct wpa_scan_results *res;
- struct wext_scan_data data;
+ /* unused at the moment */
+ return -1;
+}
- res_buf = wpa_driver_nl80211_giwscan(drv, &len);
- if (res_buf == NULL)
- return NULL;
- ap_num = 0;
- first = 1;
+static int i802_if_remove(void *priv, enum hostapd_driver_if_type type,
+ const char *ifname, const u8 *addr)
+{
+ nl80211_remove_iface(priv, if_nametoindex(ifname));
+ return 0;
+}
- res = os_zalloc(sizeof(*res));
- if (res == NULL) {
- os_free(res_buf);
- return NULL;
- }
- pos = (char *) res_buf;
- end = (char *) res_buf + len;
- os_memset(&data, 0, sizeof(data));
+static int i802_set_sta_vlan(void *priv, const u8 *addr,
+ const char *ifname, int vlan_id)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+ struct nl_msg *msg;
- while (pos + IW_EV_LCP_LEN <= end) {
- /* Event data may be unaligned, so make a local, aligned copy
- * before processing. */
- os_memcpy(&iwe_buf, pos, IW_EV_LCP_LEN);
- if (iwe->len <= IW_EV_LCP_LEN)
- break;
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
- custom = pos + IW_EV_POINT_LEN;
- if (wext_19_iw_point(drv, iwe->cmd)) {
- /* WE-19 removed the pointer from struct iw_point */
- char *dpos = (char *) &iwe_buf.u.data.length;
- int dlen = dpos - (char *) &iwe_buf;
- os_memcpy(dpos, pos + IW_EV_LCP_LEN,
- sizeof(struct iw_event) - dlen);
- } else {
- os_memcpy(&iwe_buf, pos, sizeof(struct iw_event));
- custom += IW_EV_POINT_OFF;
- }
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, NL80211_CMD_SET_STATION, 0);
- switch (iwe->cmd) {
- case SIOCGIWAP:
- if (!first)
- wpa_driver_nl80211_add_scan_entry(res, &data);
- first = 0;
- os_free(data.ie);
- os_memset(&data, 0, sizeof(data));
- os_memcpy(data.res.bssid,
- iwe->u.ap_addr.sa_data, ETH_ALEN);
- break;
- case SIOCGIWMODE:
- wext_get_scan_mode(iwe, &data);
- break;
- case SIOCGIWESSID:
- wext_get_scan_ssid(iwe, &data, custom, end);
- break;
- case SIOCGIWFREQ:
- wext_get_scan_freq(iwe, &data);
- break;
- case IWEVQUAL:
- wext_get_scan_qual(iwe, &data);
- break;
- case SIOCGIWENCODE:
- wext_get_scan_encode(iwe, &data);
- break;
- case SIOCGIWRATE:
- wext_get_scan_rate(iwe, &data, pos, end);
- break;
- case IWEVGENIE:
- wext_get_scan_iwevgenie(iwe, &data, custom, end);
- break;
- case IWEVCUSTOM:
- wext_get_scan_custom(iwe, &data, custom, end);
- break;
- }
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
+ if_nametoindex(drv->ifname));
+ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
+ if_nametoindex(ifname));
- pos += iwe->len;
- }
- os_free(res_buf);
- res_buf = NULL;
- if (!first)
- wpa_driver_nl80211_add_scan_entry(res, &data);
- os_free(data.ie);
+ return send_and_recv_msgs(drv, msg, NULL, NULL);
+ nla_put_failure:
+ return -ENOBUFS;
+}
- wpa_printf(MSG_DEBUG, "Received %lu bytes of scan results (%lu BSSes)",
- (unsigned long) len, (unsigned long) res->num);
- return res;
+static void handle_tx_callback(struct hostapd_data *hapd, u8 *buf, size_t len,
+ int ok)
+{
+ struct ieee80211_hdr *hdr;
+ u16 fc, type, stype;
+
+ hdr = (struct ieee80211_hdr *) buf;
+ fc = le_to_host16(hdr->frame_control);
+
+ type = WLAN_FC_GET_TYPE(fc);
+ stype = WLAN_FC_GET_STYPE(fc);
+
+ switch (type) {
+ case WLAN_FC_TYPE_MGMT:
+ wpa_printf(MSG_DEBUG, "MGMT (TX callback) %s",
+ ok ? "ACK" : "fail");
+ hostapd_mgmt_tx_cb(hapd, buf, len, stype, ok);
+ break;
+ case WLAN_FC_TYPE_CTRL:
+ wpa_printf(MSG_DEBUG, "CTRL (TX callback) %s",
+ ok ? "ACK" : "fail");
+ break;
+ case WLAN_FC_TYPE_DATA:
+ hostapd_tx_status(hapd, hdr->addr1, buf, len, ok);
+ break;
+ default:
+ printf("unknown TX callback frame type %d\n", type);
+ break;
+ }
}
-static int wpa_driver_nl80211_get_range(void *priv)
+static void handle_frame(struct wpa_driver_nl80211_data *drv,
+ struct hostapd_iface *iface, u8 *buf, size_t len,
+ struct hostapd_frame_info *hfi,
+ enum ieee80211_msg_type msg_type)
{
- struct wpa_driver_nl80211_data *drv = priv;
- struct iw_range *range;
- struct iwreq iwr;
- int minlen;
- size_t buflen;
+ struct ieee80211_hdr *hdr;
+ u16 fc, type, stype;
+ size_t data_len = len;
+ struct hostapd_data *hapd = NULL;
+ int broadcast_bssid = 0;
+ size_t i;
+ u8 *bssid;
/*
- * Use larger buffer than struct iw_range in order to allow the
- * structure to grow in the future.
+ * PS-Poll frames are 16 bytes. All other frames are
+ * 24 bytes or longer.
*/
- buflen = sizeof(struct iw_range) + 500;
- range = os_zalloc(buflen);
- if (range == NULL)
- return -1;
+ if (len < 16)
+ return;
- os_memset(&iwr, 0, sizeof(iwr));
- os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
- iwr.u.data.pointer = (caddr_t) range;
- iwr.u.data.length = buflen;
+ hdr = (struct ieee80211_hdr *) buf;
+ fc = le_to_host16(hdr->frame_control);
- minlen = ((char *) &range->enc_capa) - (char *) range +
- sizeof(range->enc_capa);
+ type = WLAN_FC_GET_TYPE(fc);
+ stype = WLAN_FC_GET_STYPE(fc);
- if (ioctl(drv->ioctl_sock, SIOCGIWRANGE, &iwr) < 0) {
- perror("ioctl[SIOCGIWRANGE]");
- os_free(range);
- return -1;
- } else if (iwr.u.data.length >= minlen &&
- range->we_version_compiled >= 18) {
- wpa_printf(MSG_DEBUG, "SIOCGIWRANGE: WE(compiled)=%d "
- "WE(source)=%d enc_capa=0x%x",
- range->we_version_compiled,
- range->we_version_source,
- range->enc_capa);
- drv->has_capability = 1;
- drv->we_version_compiled = range->we_version_compiled;
- if (range->enc_capa & IW_ENC_CAPA_WPA) {
- drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_WPA |
- WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK;
+ switch (type) {
+ case WLAN_FC_TYPE_DATA:
+ if (len < 24)
+ return;
+ switch (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) {
+ case WLAN_FC_TODS:
+ bssid = hdr->addr1;
+ break;
+ case WLAN_FC_FROMDS:
+ bssid = hdr->addr2;
+ break;
+ default:
+ /* discard */
+ return;
}
- if (range->enc_capa & IW_ENC_CAPA_WPA2) {
- drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
- WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
+ break;
+ case WLAN_FC_TYPE_CTRL:
+ /* discard non-ps-poll frames */
+ if (stype != WLAN_FC_STYPE_PSPOLL)
+ return;
+ bssid = hdr->addr1;
+ break;
+ case WLAN_FC_TYPE_MGMT:
+ bssid = hdr->addr3;
+ break;
+ default:
+ /* discard */
+ return;
+ }
+
+ /* find interface frame belongs to */
+ for (i = 0; i < iface->num_bss; i++) {
+ if (memcmp(bssid, iface->bss[i]->own_addr, ETH_ALEN) == 0) {
+ hapd = iface->bss[i];
+ break;
}
- drv->capa.enc |= WPA_DRIVER_CAPA_ENC_WEP40 |
- WPA_DRIVER_CAPA_ENC_WEP104;
- if (range->enc_capa & IW_ENC_CAPA_CIPHER_TKIP)
- drv->capa.enc |= WPA_DRIVER_CAPA_ENC_TKIP;
- if (range->enc_capa & IW_ENC_CAPA_CIPHER_CCMP)
- drv->capa.enc |= WPA_DRIVER_CAPA_ENC_CCMP;
- wpa_printf(MSG_DEBUG, " capabilities: key_mgmt 0x%x enc 0x%x",
- drv->capa.key_mgmt, drv->capa.enc);
- } else {
- wpa_printf(MSG_DEBUG, "SIOCGIWRANGE: too old (short) data - "
- "assuming WPA is not supported");
}
- os_free(range);
- return 0;
+ if (hapd == NULL) {
+ hapd = iface->bss[0];
+
+ if (bssid[0] != 0xff || bssid[1] != 0xff ||
+ bssid[2] != 0xff || bssid[3] != 0xff ||
+ bssid[4] != 0xff || bssid[5] != 0xff) {
+ /*
+ * Unknown BSSID - drop frame if this is not from
+ * passive scanning or a beacon (at least ProbeReq
+ * frames to other APs may be allowed through RX
+ * filtering in the wlan hw/driver)
+ */
+ if ((type != WLAN_FC_TYPE_MGMT ||
+ stype != WLAN_FC_STYPE_BEACON))
+ return;
+ } else
+ broadcast_bssid = 1;
+ }
+
+ switch (msg_type) {
+ case ieee80211_msg_normal:
+ /* continue processing */
+ break;
+ case ieee80211_msg_tx_callback_ack:
+ handle_tx_callback(hapd, buf, data_len, 1);
+ return;
+ case ieee80211_msg_tx_callback_fail:
+ handle_tx_callback(hapd, buf, data_len, 0);
+ return;
+ }
+
+ switch (type) {
+ case WLAN_FC_TYPE_MGMT:
+ if (stype != WLAN_FC_STYPE_BEACON &&
+ stype != WLAN_FC_STYPE_PROBE_REQ)
+ wpa_printf(MSG_MSGDUMP, "MGMT");
+ if (broadcast_bssid) {
+ for (i = 0; i < iface->num_bss; i++)
+ hostapd_mgmt_rx(iface->bss[i], buf, data_len,
+ stype, hfi);
+ } else
+ hostapd_mgmt_rx(hapd, buf, data_len, stype, hfi);
+ break;
+ case WLAN_FC_TYPE_CTRL:
+ /* can only get here with PS-Poll frames */
+ wpa_printf(MSG_DEBUG, "CTRL");
+ hostapd_rx_from_unknown_sta(drv->hapd, hdr->addr2);
+ break;
+ case WLAN_FC_TYPE_DATA:
+ hostapd_rx_from_unknown_sta(drv->hapd, hdr->addr2);
+ break;
+ }
}
-static int wpa_driver_nl80211_set_wpa(void *priv, int enabled)
+static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx)
{
- struct wpa_driver_nl80211_data *drv = priv;
- wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
+ struct wpa_driver_nl80211_data *drv = eloop_ctx;
+ struct sockaddr_ll lladdr;
+ unsigned char buf[3000];
+ int len;
+ socklen_t fromlen = sizeof(lladdr);
+
+ len = recvfrom(sock, buf, sizeof(buf), 0,
+ (struct sockaddr *)&lladdr, &fromlen);
+ if (len < 0) {
+ perror("recv");
+ return;
+ }
- return wpa_driver_nl80211_set_auth_param(drv, IW_AUTH_WPA_ENABLED,
- enabled);
+ if (have_ifidx(drv, lladdr.sll_ifindex)) {
+ struct hostapd_data *hapd;
+ hapd = hostapd_sta_get_bss(drv->hapd, lladdr.sll_addr);
+ if (!hapd)
+ return;
+ hostapd_eapol_receive(hapd, lladdr.sll_addr, buf, len);
+ }
}
-static int wpa_driver_nl80211_set_key(void *priv, wpa_alg alg,
- const u8 *addr, int key_idx,
- int set_tx, const u8 *seq,
- size_t seq_len,
- const u8 *key, size_t key_len)
+static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx)
{
- struct wpa_driver_nl80211_data *drv = priv;
- int err;
- struct nl_msg *msg;
+ struct wpa_driver_nl80211_data *drv = eloop_ctx;
+ int len;
+ unsigned char buf[3000];
+ struct hostapd_data *hapd = drv->hapd;
+ struct ieee80211_radiotap_iterator iter;
+ int ret;
+ struct hostapd_frame_info hfi;
+ int injected = 0, failed = 0, msg_type, rxflags = 0;
- wpa_printf(MSG_DEBUG, "%s: alg=%d addr=%p key_idx=%d set_tx=%d "
- "seq_len=%lu key_len=%lu",
- __func__, alg, addr, key_idx, set_tx,
- (unsigned long) seq_len, (unsigned long) key_len);
+ len = recv(sock, buf, sizeof(buf), 0);
+ if (len < 0) {
+ perror("recv");
+ return;
+ }
- msg = nlmsg_alloc();
- if (msg == NULL)
- return -1;
+ if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) {
+ printf("received invalid radiotap frame\n");
+ return;
+ }
- if (alg == WPA_ALG_NONE) {
- genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
- NL80211_CMD_DEL_KEY, 0);
- } else {
- genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
- NL80211_CMD_NEW_KEY, 0);
- NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key);
- switch (alg) {
- case WPA_ALG_WEP:
- if (key_len == 5)
- NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
- 0x000FAC01);
- else
- NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
- 0x000FAC05);
+ memset(&hfi, 0, sizeof(hfi));
+
+ while (1) {
+ ret = ieee80211_radiotap_iterator_next(&iter);
+ if (ret == -ENOENT)
break;
- case WPA_ALG_TKIP:
- NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 0x000FAC02);
+ if (ret) {
+ printf("received invalid radiotap frame (%d)\n", ret);
+ return;
+ }
+ switch (iter.this_arg_index) {
+ case IEEE80211_RADIOTAP_FLAGS:
+ if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS)
+ len -= 4;
break;
- case WPA_ALG_CCMP:
- NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 0x000FAC04);
+ case IEEE80211_RADIOTAP_RX_FLAGS:
+ rxflags = 1;
+ break;
+ case IEEE80211_RADIOTAP_TX_FLAGS:
+ injected = 1;
+ failed = le_to_host16((*(uint16_t *) iter.this_arg)) &
+ IEEE80211_RADIOTAP_F_TX_FAIL;
+ break;
+ case IEEE80211_RADIOTAP_DATA_RETRIES:
+ break;
+ case IEEE80211_RADIOTAP_CHANNEL:
+ /* TODO convert from freq/flags to channel number
+ hfi.channel = XXX;
+ hfi.phytype = XXX;
+ */
+ break;
+ case IEEE80211_RADIOTAP_RATE:
+ hfi.datarate = *iter.this_arg * 5;
+ break;
+ case IEEE80211_RADIOTAP_DB_ANTSIGNAL:
+ hfi.ssi_signal = *iter.this_arg;
break;
- default:
- nlmsg_free(msg);
- return -1;
}
}
- if (addr && os_memcmp(addr, "\xff\xff\xff\xff\xff\xff", ETH_ALEN) != 0)
- {
- wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr));
- NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
- }
- NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
- NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+ if (rxflags && injected)
+ return;
- err = send_and_recv_msgs(drv, msg, NULL, NULL);
- if (err) {
- wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d", err);
- return -1;
- }
+ if (!injected)
+ msg_type = ieee80211_msg_normal;
+ else if (failed)
+ msg_type = ieee80211_msg_tx_callback_fail;
+ else
+ msg_type = ieee80211_msg_tx_callback_ack;
- if (set_tx && alg != WPA_ALG_NONE) {
- msg = nlmsg_alloc();
- if (msg == NULL)
- return -1;
+ handle_frame(drv, hapd->iface, buf + iter.max_length,
+ len - iter.max_length, &hfi, msg_type);
+}
- genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
- 0, NL80211_CMD_SET_KEY, 0);
- NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
- NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
- NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT);
- err = send_and_recv_msgs(drv, msg, NULL, NULL);
- if (err) {
- wpa_printf(MSG_DEBUG, "nl80211: set default key "
- "failed; err=%d", err);
- return -1;
- }
- }
+/*
+ * we post-process the filter code later and rewrite
+ * this to the offset to the last instruction
+ */
+#define PASS 0xFF
+#define FAIL 0xFE
- return 0;
+static struct sock_filter msock_filter_insns[] = {
+ /*
+ * do a little-endian load of the radiotap length field
+ */
+ /* load lower byte into A */
+ BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2),
+ /* put it into X (== index register) */
+ BPF_STMT(BPF_MISC| BPF_TAX, 0),
+ /* load upper byte into A */
+ BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3),
+ /* left-shift it by 8 */
+ BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8),
+ /* or with X */
+ BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0),
+ /* put result into X */
+ BPF_STMT(BPF_MISC| BPF_TAX, 0),
-nla_put_failure:
- return -ENOBUFS;
-}
+ /*
+ * Allow management frames through, this also gives us those
+ * management frames that we sent ourselves with status
+ */
+ /* load the lower byte of the IEEE 802.11 frame control field */
+ BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
+ /* mask off frame type and version */
+ BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF),
+ /* accept frame if it's both 0, fall through otherwise */
+ BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0),
+ /*
+ * TODO: add a bit to radiotap RX flags that indicates
+ * that the sending station is not associated, then
+ * add a filter here that filters on our DA and that flag
+ * to allow us to deauth frames to that bad station.
+ *
+ * Not a regression -- we didn't do it before either.
+ */
-static int wpa_driver_nl80211_set_countermeasures(void *priv,
- int enabled)
-{
- struct wpa_driver_nl80211_data *drv = priv;
- wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
- return wpa_driver_nl80211_set_auth_param(drv,
- IW_AUTH_TKIP_COUNTERMEASURES,
- enabled);
-}
+#if 0
+ /*
+ * drop non-data frames, WDS frames
+ */
+ /* load the lower byte of the frame control field */
+ BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
+ /* mask off QoS bit */
+ BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c),
+ /* drop non-data frames */
+ BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL),
+ /* load the upper byte of the frame control field */
+ BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
+ /* mask off toDS/fromDS */
+ BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03),
+ /* drop WDS frames */
+ BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, FAIL, 0),
+#endif
+ /*
+ * add header length to index
+ */
+ /* load the lower byte of the frame control field */
+ BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
+ /* mask off QoS bit */
+ BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80),
+ /* right shift it by 6 to give 0 or 2 */
+ BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6),
+ /* add data frame header length */
+ BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24),
+ /* add index, was start of 802.11 header */
+ BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0),
+ /* move to index, now start of LL header */
+ BPF_STMT(BPF_MISC | BPF_TAX, 0),
-static int wpa_driver_nl80211_set_drop_unencrypted(void *priv,
- int enabled)
-{
- struct wpa_driver_nl80211_data *drv = priv;
- wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
- drv->use_crypt = enabled;
- return wpa_driver_nl80211_set_auth_param(drv, IW_AUTH_DROP_UNENCRYPTED,
- enabled);
-}
+ /*
+ * Accept empty data frames, we use those for
+ * polling activity.
+ */
+ BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0),
+ BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0),
+
+ /*
+ * Accept EAPOL frames
+ */
+ BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0),
+ BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL),
+ BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4),
+ BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL),
+
+ /* keep these last two statements or change the code below */
+ /* return 0 == "DROP" */
+ BPF_STMT(BPF_RET | BPF_K, 0),
+ /* return ~0 == "keep all" */
+ BPF_STMT(BPF_RET | BPF_K, ~0),
+};
+
+static struct sock_fprog msock_filter = {
+ .len = sizeof(msock_filter_insns)/sizeof(msock_filter_insns[0]),
+ .filter = msock_filter_insns,
+};
-static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
- const u8 *addr, int cmd, int reason_code)
+static int add_monitor_filter(int s)
{
- struct iwreq iwr;
- struct iw_mlme mlme;
- int ret = 0;
+ int idx;
+
+ /* rewrite all PASS/FAIL jump offsets */
+ for (idx = 0; idx < msock_filter.len; idx++) {
+ struct sock_filter *insn = &msock_filter_insns[idx];
+
+ if (BPF_CLASS(insn->code) == BPF_JMP) {
+ if (insn->code == (BPF_JMP|BPF_JA)) {
+ if (insn->k == PASS)
+ insn->k = msock_filter.len - idx - 2;
+ else if (insn->k == FAIL)
+ insn->k = msock_filter.len - idx - 3;
+ }
- os_memset(&iwr, 0, sizeof(iwr));
- os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
- os_memset(&mlme, 0, sizeof(mlme));
- mlme.cmd = cmd;
- mlme.reason_code = reason_code;
- mlme.addr.sa_family = ARPHRD_ETHER;
- os_memcpy(mlme.addr.sa_data, addr, ETH_ALEN);
- iwr.u.data.pointer = (caddr_t) &mlme;
- iwr.u.data.length = sizeof(mlme);
+ if (insn->jt == PASS)
+ insn->jt = msock_filter.len - idx - 2;
+ else if (insn->jt == FAIL)
+ insn->jt = msock_filter.len - idx - 3;
- if (ioctl(drv->ioctl_sock, SIOCSIWMLME, &iwr) < 0) {
- perror("ioctl[SIOCSIWMLME]");
- ret = -1;
+ if (insn->jf == PASS)
+ insn->jf = msock_filter.len - idx - 2;
+ else if (insn->jf == FAIL)
+ insn->jf = msock_filter.len - idx - 3;
+ }
}
- return ret;
-}
-
+ if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER,
+ &msock_filter, sizeof(msock_filter))) {
+ perror("SO_ATTACH_FILTER");
+ return -1;
+ }
-static int wpa_driver_nl80211_deauthenticate(void *priv, const u8 *addr,
- int reason_code)
-{
- struct wpa_driver_nl80211_data *drv = priv;
- wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
- return wpa_driver_nl80211_mlme(drv, addr, IW_MLME_DEAUTH, reason_code);
+ return 0;
}
-static int wpa_driver_nl80211_disassociate(void *priv, const u8 *addr,
- int reason_code)
+static int nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv)
{
- struct wpa_driver_nl80211_data *drv = priv;
- wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
- return wpa_driver_nl80211_mlme(drv, addr, IW_MLME_DISASSOC,
- reason_code);
-}
+ char buf[IFNAMSIZ];
+ struct sockaddr_ll ll;
+ int optval;
+ socklen_t optlen;
+ snprintf(buf, IFNAMSIZ, "mon.%s", drv->ifname);
+ buf[IFNAMSIZ - 1] = '\0';
-static int wpa_driver_nl80211_set_gen_ie(void *priv, const u8 *ie,
- size_t ie_len)
-{
- struct wpa_driver_nl80211_data *drv = priv;
- struct iwreq iwr;
- int ret = 0;
+ drv->monitor_ifidx =
+ nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL);
- os_memset(&iwr, 0, sizeof(iwr));
- os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
- iwr.u.data.pointer = (caddr_t) ie;
- iwr.u.data.length = ie_len;
+ if (drv->monitor_ifidx < 0)
+ return -1;
- if (ioctl(drv->ioctl_sock, SIOCSIWGENIE, &iwr) < 0) {
- perror("ioctl[SIOCSIWGENIE]");
- ret = -1;
- }
+ if (hostapd_set_iface_flags(drv, buf, 1))
+ goto error;
- return ret;
-}
+ memset(&ll, 0, sizeof(ll));
+ ll.sll_family = AF_PACKET;
+ ll.sll_ifindex = drv->monitor_ifidx;
+ drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
+ if (drv->monitor_sock < 0) {
+ perror("socket[PF_PACKET,SOCK_RAW]");
+ goto error;
+ }
+ if (add_monitor_filter(drv->monitor_sock)) {
+ wpa_printf(MSG_INFO, "Failed to set socket filter for monitor "
+ "interface; do filtering in user space");
+ /* This works, but will cost in performance. */
+ }
-static int wpa_driver_nl80211_cipher2wext(int cipher)
-{
- switch (cipher) {
- case CIPHER_NONE:
- return IW_AUTH_CIPHER_NONE;
- case CIPHER_WEP40:
- return IW_AUTH_CIPHER_WEP40;
- case CIPHER_TKIP:
- return IW_AUTH_CIPHER_TKIP;
- case CIPHER_CCMP:
- return IW_AUTH_CIPHER_CCMP;
- case CIPHER_WEP104:
- return IW_AUTH_CIPHER_WEP104;
- default:
- return 0;
+ if (bind(drv->monitor_sock, (struct sockaddr *) &ll,
+ sizeof(ll)) < 0) {
+ perror("monitor socket bind");
+ goto error;
}
-}
+ optlen = sizeof(optval);
+ optval = 20;
+ if (setsockopt
+ (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) {
+ perror("Failed to set socket priority");
+ goto error;
+ }
-static int wpa_driver_nl80211_keymgmt2wext(int keymgmt)
-{
- switch (keymgmt) {
- case KEY_MGMT_802_1X:
- case KEY_MGMT_802_1X_NO_WPA:
- return IW_AUTH_KEY_MGMT_802_1X;
- case KEY_MGMT_PSK:
- return IW_AUTH_KEY_MGMT_PSK;
- default:
- return 0;
+ if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read,
+ drv, NULL)) {
+ printf("Could not register monitor read socket\n");
+ goto error;
}
+
+ return 0;
+ error:
+ nl80211_remove_iface(drv, drv->monitor_ifidx);
+ return -1;
}
-static int
-wpa_driver_nl80211_auth_alg_fallback(struct wpa_driver_nl80211_data *drv,
- struct wpa_driver_associate_params *params)
+static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv, const char *ifname,
+ int mode)
{
- struct iwreq iwr;
- int ret = 0;
+ struct nl_msg *msg;
+ int ret = -ENOBUFS;
- wpa_printf(MSG_DEBUG, "WEXT: Driver did not support "
- "SIOCSIWAUTH for AUTH_ALG, trying SIOCSIWENCODE");
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
- os_memset(&iwr, 0, sizeof(iwr));
- os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
- /* Just changing mode, not actual keys */
- iwr.u.encoding.flags = 0;
- iwr.u.encoding.pointer = (caddr_t) NULL;
- iwr.u.encoding.length = 0;
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, NL80211_CMD_SET_INTERFACE, 0);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
+ if_nametoindex(ifname));
+ NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode);
- /*
- * Note: IW_ENCODE_{OPEN,RESTRICTED} can be interpreted to mean two
- * different things. Here they are used to indicate Open System vs.
- * Shared Key authentication algorithm. However, some drivers may use
- * them to select between open/restricted WEP encrypted (open = allow
- * both unencrypted and encrypted frames; restricted = only allow
- * encrypted frames).
- */
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ if (!ret)
+ return 0;
+ nla_put_failure:
+ wpa_printf(MSG_ERROR, "Failed to set interface %s to master "
+ "mode.", ifname);
+ return ret;
+}
- if (!drv->use_crypt) {
- iwr.u.encoding.flags |= IW_ENCODE_DISABLED;
- } else {
- if (params->auth_alg & AUTH_ALG_OPEN_SYSTEM)
- iwr.u.encoding.flags |= IW_ENCODE_OPEN;
- if (params->auth_alg & AUTH_ALG_SHARED_KEY)
- iwr.u.encoding.flags |= IW_ENCODE_RESTRICTED;
- }
- if (ioctl(drv->ioctl_sock, SIOCSIWENCODE, &iwr) < 0) {
- perror("ioctl[SIOCSIWENCODE]");
- ret = -1;
+#ifdef CONFIG_IEEE80211N
+static void i802_add_neighbor(struct wpa_driver_nl80211_data *drv, u8 *bssid,
+ int freq, u8 *ie, size_t ie_len)
+{
+ struct ieee802_11_elems elems;
+ int ht, pri_chan = 0, sec_chan = 0;
+ struct ieee80211_ht_operation *oper;
+ struct hostapd_neighbor_bss *nnei;
+
+ ieee802_11_parse_elems(ie, ie_len, &elems, 0);
+ ht = elems.ht_capabilities || elems.ht_operation;
+ if (elems.ht_operation && elems.ht_operation_len >= sizeof(*oper)) {
+ oper = (struct ieee80211_ht_operation *) elems.ht_operation;
+ pri_chan = oper->control_chan;
+ if (oper->ht_param & HT_INFO_HT_PARAM_REC_TRANS_CHNL_WIDTH) {
+ if (oper->ht_param &
+ HT_INFO_HT_PARAM_SECONDARY_CHNL_ABOVE)
+ sec_chan = pri_chan + 4;
+ else if (oper->ht_param &
+ HT_INFO_HT_PARAM_SECONDARY_CHNL_BELOW)
+ sec_chan = pri_chan - 4;
+ }
}
- return ret;
+ wpa_printf(MSG_DEBUG, "nl80211: Neighboring BSS - bssid=" MACSTR
+ " freq=%d MHz HT=%d pri_chan=%d sec_chan=%d",
+ MAC2STR(bssid), freq, ht, pri_chan, sec_chan);
+
+ nnei = os_realloc(drv->neighbors, (drv->num_neighbors + 1) *
+ sizeof(struct hostapd_neighbor_bss));
+ if (nnei == NULL)
+ return;
+ drv->neighbors = nnei;
+ nnei = &nnei[drv->num_neighbors];
+ os_memcpy(nnei->bssid, bssid, ETH_ALEN);
+ nnei->freq = freq;
+ nnei->ht = !!ht;
+ nnei->pri_chan = pri_chan;
+ nnei->sec_chan = sec_chan;
+ drv->num_neighbors++;
}
-static int wpa_driver_nl80211_associate(
- void *priv, struct wpa_driver_associate_params *params)
+static int i802_get_scan_freq(struct iw_event *iwe, int *freq)
{
- struct wpa_driver_nl80211_data *drv = priv;
- int ret = 0;
- int allow_unencrypted_eapol;
- int value;
+ int divi = 1000000, i;
- wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
+ if (iwe->u.freq.e == 0) {
+ /*
+ * Some drivers do not report frequency, but a channel.
+ * Try to map this to frequency by assuming they are using
+ * IEEE 802.11b/g. But don't overwrite a previously parsed
+ * frequency if the driver sends both frequency and channel,
+ * since the driver may be sending an A-band channel that we
+ * don't handle here.
+ */
- /*
- * If the driver did not support SIOCSIWAUTH, fallback to
- * SIOCSIWENCODE here.
- */
- if (drv->auth_alg_fallback &&
- wpa_driver_nl80211_auth_alg_fallback(drv, params) < 0)
- ret = -1;
-
- if (!params->bssid &&
- wpa_driver_nl80211_set_bssid(drv, NULL) < 0)
- ret = -1;
-
- /* TODO: should consider getting wpa version and cipher/key_mgmt suites
- * from configuration, not from here, where only the selected suite is
- * available */
- if (wpa_driver_nl80211_set_gen_ie(drv, params->wpa_ie, params->wpa_ie_len)
- < 0)
- ret = -1;
- if (params->wpa_ie == NULL || params->wpa_ie_len == 0)
- value = IW_AUTH_WPA_VERSION_DISABLED;
- else if (params->wpa_ie[0] == WLAN_EID_RSN)
- value = IW_AUTH_WPA_VERSION_WPA2;
- else
- value = IW_AUTH_WPA_VERSION_WPA;
- if (wpa_driver_nl80211_set_auth_param(drv,
- IW_AUTH_WPA_VERSION, value) < 0)
- ret = -1;
- value = wpa_driver_nl80211_cipher2wext(params->pairwise_suite);
- if (wpa_driver_nl80211_set_auth_param(drv,
- IW_AUTH_CIPHER_PAIRWISE, value) < 0)
- ret = -1;
- value = wpa_driver_nl80211_cipher2wext(params->group_suite);
- if (wpa_driver_nl80211_set_auth_param(drv,
- IW_AUTH_CIPHER_GROUP, value) < 0)
- ret = -1;
- value = wpa_driver_nl80211_keymgmt2wext(params->key_mgmt_suite);
- if (wpa_driver_nl80211_set_auth_param(drv,
- IW_AUTH_KEY_MGMT, value) < 0)
- ret = -1;
- value = params->key_mgmt_suite != KEY_MGMT_NONE ||
- params->pairwise_suite != CIPHER_NONE ||
- params->group_suite != CIPHER_NONE ||
- params->wpa_ie_len;
- if (wpa_driver_nl80211_set_auth_param(drv,
- IW_AUTH_PRIVACY_INVOKED, value) < 0)
- ret = -1;
-
- /* Allow unencrypted EAPOL messages even if pairwise keys are set when
- * not using WPA. IEEE 802.1X specifies that these frames are not
- * encrypted, but WPA encrypts them when pairwise keys are in use. */
- if (params->key_mgmt_suite == KEY_MGMT_802_1X ||
- params->key_mgmt_suite == KEY_MGMT_PSK)
- allow_unencrypted_eapol = 0;
- else
- allow_unencrypted_eapol = 1;
-
- if (wpa_driver_nl80211_set_auth_param(drv,
- IW_AUTH_RX_UNENCRYPTED_EAPOL,
- allow_unencrypted_eapol) < 0)
- ret = -1;
- if (params->freq && wpa_driver_nl80211_set_freq(drv, params->freq) < 0)
- ret = -1;
- if (wpa_driver_nl80211_set_ssid(drv, params->ssid, params->ssid_len) < 0)
- ret = -1;
- if (params->bssid &&
- wpa_driver_nl80211_set_bssid(drv, params->bssid) < 0)
- ret = -1;
+ if (*freq)
+ return 0;
- return ret;
-}
+ if (iwe->u.freq.m >= 1 && iwe->u.freq.m <= 13) {
+ *freq = 2407 + 5 * iwe->u.freq.m;
+ return 0;
+ } else if (iwe->u.freq.m == 14) {
+ *freq = 2484;
+ return 0;
+ }
+ }
+ if (iwe->u.freq.e > 6) {
+ wpa_printf(MSG_DEBUG, "Invalid freq in scan results: "
+ "m=%d e=%d", iwe->u.freq.m, iwe->u.freq.e);
+ return -1;
+ }
-static int wpa_driver_nl80211_set_auth_alg(void *priv, int auth_alg)
-{
- struct wpa_driver_nl80211_data *drv = priv;
- int algs = 0, res;
-
- if (auth_alg & AUTH_ALG_OPEN_SYSTEM)
- algs |= IW_AUTH_ALG_OPEN_SYSTEM;
- if (auth_alg & AUTH_ALG_SHARED_KEY)
- algs |= IW_AUTH_ALG_SHARED_KEY;
- if (auth_alg & AUTH_ALG_LEAP)
- algs |= IW_AUTH_ALG_LEAP;
- if (algs == 0) {
- /* at least one algorithm should be set */
- algs = IW_AUTH_ALG_OPEN_SYSTEM;
- }
-
- res = wpa_driver_nl80211_set_auth_param(drv, IW_AUTH_80211_AUTH_ALG,
- algs);
- drv->auth_alg_fallback = res == -2;
- return res;
+ for (i = 0; i < iwe->u.freq.e; i++)
+ divi /= 10;
+ *freq = iwe->u.freq.m / divi;
+ return 0;
}
-/**
- * wpa_driver_nl80211_set_mode - Set wireless mode (infra/adhoc), SIOCSIWMODE
- * @priv: Pointer to private wext data from wpa_driver_nl80211_init()
- * @mode: 0 = infra/BSS (associate with an AP), 1 = adhoc/IBSS
- * Returns: 0 on success, -1 on failure
- */
-static int wpa_driver_nl80211_set_mode(void *priv, int mode)
+static int i802_parse_scan(struct wpa_driver_nl80211_data *drv, u8 *res_buf,
+ size_t len)
{
- struct wpa_driver_nl80211_data *drv = priv;
- int ret = -1, flags;
- struct nl_msg *msg;
-
- msg = nlmsg_alloc();
- if (!msg)
- return -1;
-
- genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
- 0, NL80211_CMD_SET_INTERFACE, 0);
- NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
- NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE,
- mode ? NL80211_IFTYPE_ADHOC : NL80211_IFTYPE_STATION);
+ size_t ap_num = 0;
+ int first;
+ struct iw_event iwe_buf, *iwe = &iwe_buf;
+ char *pos, *end, *custom;
+ u8 bssid[ETH_ALEN];
+ int freq = 0;
+ u8 *ie = NULL;
+ size_t ie_len = 0;
- ret = send_and_recv_msgs(drv, msg, NULL, NULL);
- if (!ret)
- return 0;
- else
- goto try_again;
+ ap_num = 0;
+ first = 1;
-nla_put_failure:
- wpa_printf(MSG_ERROR, "nl80211: Failed to set interface mode");
- return -1;
+ pos = (char *) res_buf;
+ end = (char *) res_buf + len;
-try_again:
- /* mac80211 doesn't allow mode changes while the device is up, so
- * take the device down, try to set the mode again, and bring the
- * device back up.
- */
- if (wpa_driver_nl80211_get_ifflags(drv, &flags) == 0) {
- (void) wpa_driver_nl80211_set_ifflags(drv, flags & ~IFF_UP);
+ while (pos + IW_EV_LCP_LEN <= end) {
+ /* Event data may be unaligned, so make a local, aligned copy
+ * before processing. */
+ os_memcpy(&iwe_buf, pos, IW_EV_LCP_LEN);
+ if (iwe->len <= IW_EV_LCP_LEN)
+ break;
- /* Try to set the mode again while the interface is down */
- msg = nlmsg_alloc();
- if (!msg)
- return -1;
+ custom = pos + IW_EV_POINT_LEN;
+ if (iwe->cmd == IWEVGENIE) {
+ /* WE-19 removed the pointer from struct iw_point */
+ char *dpos = (char *) &iwe_buf.u.data.length;
+ int dlen = dpos - (char *) &iwe_buf;
+ os_memcpy(dpos, pos + IW_EV_LCP_LEN,
+ sizeof(struct iw_event) - dlen);
+ } else {
+ os_memcpy(&iwe_buf, pos, sizeof(struct iw_event));
+ custom += IW_EV_POINT_OFF;
+ }
- genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
- 0, NL80211_CMD_SET_INTERFACE, 0);
- NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
- NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE,
- mode ? NL80211_IFTYPE_ADHOC :
- NL80211_IFTYPE_STATION);
- ret = send_and_recv_msgs(drv, msg, NULL, NULL);
- if (ret) {
- wpa_printf(MSG_ERROR, "Failed to set interface %s "
- "mode", drv->ifname);
+ switch (iwe->cmd) {
+ case SIOCGIWAP:
+ if (!first)
+ i802_add_neighbor(drv, bssid, freq, ie,
+ ie_len);
+ first = 0;
+ os_memcpy(bssid, iwe->u.ap_addr.sa_data, ETH_ALEN);
+ freq = 0;
+ ie = NULL;
+ ie_len = 0;
+ break;
+ case SIOCGIWFREQ:
+ i802_get_scan_freq(iwe, &freq);
+ break;
+ case IWEVGENIE:
+ if (custom + iwe->u.data.length > end) {
+ wpa_printf(MSG_ERROR, "IWEVGENIE overflow");
+ return -1;
+ }
+ ie = (u8 *) custom;
+ ie_len = iwe->u.data.length;
+ break;
}
- /* Ignore return value of get_ifflags to ensure that the device
- * is always up like it was before this function was called.
- */
- (void) wpa_driver_nl80211_get_ifflags(drv, &flags);
- (void) wpa_driver_nl80211_set_ifflags(drv, flags | IFF_UP);
+ pos += iwe->len;
}
- return ret;
+ if (!first)
+ i802_add_neighbor(drv, bssid, freq, ie, ie_len);
+
+ return 0;
}
-static int wpa_driver_nl80211_pmksa(struct wpa_driver_nl80211_data *drv,
- u32 cmd, const u8 *bssid, const u8 *pmkid)
+static int i802_get_ht_scan_res(struct wpa_driver_nl80211_data *drv)
{
struct iwreq iwr;
- struct iw_pmksa pmksa;
- int ret = 0;
+ u8 *res_buf;
+ size_t res_buf_len;
+ int res;
- os_memset(&iwr, 0, sizeof(iwr));
- os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
- os_memset(&pmksa, 0, sizeof(pmksa));
- pmksa.cmd = cmd;
- pmksa.bssid.sa_family = ARPHRD_ETHER;
- if (bssid)
- os_memcpy(pmksa.bssid.sa_data, bssid, ETH_ALEN);
- if (pmkid)
- os_memcpy(pmksa.pmkid, pmkid, IW_PMKID_LEN);
- iwr.u.data.pointer = (caddr_t) &pmksa;
- iwr.u.data.length = sizeof(pmksa);
-
- if (ioctl(drv->ioctl_sock, SIOCSIWPMKSA, &iwr) < 0) {
- if (errno != EOPNOTSUPP)
- perror("ioctl[SIOCSIWPMKSA]");
- ret = -1;
+ res_buf_len = IW_SCAN_MAX_DATA;
+ for (;;) {
+ res_buf = os_malloc(res_buf_len);
+ if (res_buf == NULL)
+ return -1;
+ os_memset(&iwr, 0, sizeof(iwr));
+ os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
+ iwr.u.data.pointer = res_buf;
+ iwr.u.data.length = res_buf_len;
+
+ if (ioctl(drv->ioctl_sock, SIOCGIWSCAN, &iwr) == 0)
+ break;
+
+ if (errno == E2BIG && res_buf_len < 65535) {
+ os_free(res_buf);
+ res_buf = NULL;
+ res_buf_len *= 2;
+ if (res_buf_len > 65535)
+ res_buf_len = 65535; /* 16-bit length field */
+ wpa_printf(MSG_DEBUG, "Scan results did not fit - "
+ "trying larger buffer (%lu bytes)",
+ (unsigned long) res_buf_len);
+ } else {
+ perror("ioctl[SIOCGIWSCAN]");
+ os_free(res_buf);
+ return -1;
+ }
}
- return ret;
-}
+ if (iwr.u.data.length > res_buf_len) {
+ os_free(res_buf);
+ return -1;
+ }
+ res = i802_parse_scan(drv, res_buf, iwr.u.data.length);
+ os_free(res_buf);
-static int wpa_driver_nl80211_add_pmkid(void *priv, const u8 *bssid,
- const u8 *pmkid)
-{
- struct wpa_driver_nl80211_data *drv = priv;
- return wpa_driver_nl80211_pmksa(drv, IW_PMKSA_ADD, bssid, pmkid);
+ return res;
}
-static int wpa_driver_nl80211_remove_pmkid(void *priv, const u8 *bssid,
- const u8 *pmkid)
+static int i802_is_event_wireless_scan_complete(char *data, int len)
{
- struct wpa_driver_nl80211_data *drv = priv;
- return wpa_driver_nl80211_pmksa(drv, IW_PMKSA_REMOVE, bssid, pmkid);
-}
+ struct iw_event iwe_buf, *iwe = &iwe_buf;
+ char *pos, *end;
+ pos = data;
+ end = data + len;
-static int wpa_driver_nl80211_flush_pmkid(void *priv)
-{
- struct wpa_driver_nl80211_data *drv = priv;
- return wpa_driver_nl80211_pmksa(drv, IW_PMKSA_FLUSH, NULL, NULL);
-}
+ while (pos + IW_EV_LCP_LEN <= end) {
+ /* Event data may be unaligned, so make a local, aligned copy
+ * before processing. */
+ os_memcpy(&iwe_buf, pos, IW_EV_LCP_LEN);
+ if (iwe->cmd == SIOCGIWSCAN)
+ return 1;
+ pos += iwe->len;
+ }
-static int wpa_driver_nl80211_get_capa(void *priv,
- struct wpa_driver_capa *capa)
-{
- struct wpa_driver_nl80211_data *drv = priv;
- if (!drv->has_capability)
- return -1;
- os_memcpy(capa, &drv->capa, sizeof(*capa));
return 0;
}
-static int wpa_driver_nl80211_set_operstate(void *priv, int state)
+static int i802_is_rtm_scan_complete(int ifindex, struct nlmsghdr *h, int len)
{
- struct wpa_driver_nl80211_data *drv = priv;
+ struct ifinfomsg *ifi;
+ int attrlen, _nlmsg_len, rta_len;
+ struct rtattr *attr;
- wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)",
- __func__, drv->operstate, state, state ? "UP" : "DORMANT");
- drv->operstate = state;
- return wpa_driver_nl80211_send_oper_ifla(
- drv, -1, state ? IF_OPER_UP : IF_OPER_DORMANT);
-}
+ if (len < (int) sizeof(*ifi))
+ return 0;
+ ifi = NLMSG_DATA(h);
-#ifdef CONFIG_CLIENT_MLME
-static int wpa_driver_nl80211_open_mlme(struct wpa_driver_nl80211_data *drv)
-{
- if (wpa_driver_nl80211_set_userspace_mlme(drv, 1) < 0) {
- wpa_printf(MSG_ERROR, "nl80211: Failed to enable userspace "
- "MLME");
- return -1;
- }
- if (wpa_driver_nl80211_create_monitor_interface(drv)) {
- wpa_printf(MSG_ERROR, "nl80211: Failed to create monitor "
- "interface");
- return -1;
+ if (ifindex != ifi->ifi_index)
+ return 0; /* event for foreign ifindex */
+
+ _nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
+
+ attrlen = h->nlmsg_len - _nlmsg_len;
+ if (attrlen < 0)
+ return 0;
+
+ attr = (struct rtattr *) (((char *) ifi) + _nlmsg_len);
+
+ rta_len = RTA_ALIGN(sizeof(struct rtattr));
+ while (RTA_OK(attr, attrlen)) {
+ if (attr->rta_type == IFLA_WIRELESS &&
+ i802_is_event_wireless_scan_complete(
+ ((char *) attr) + rta_len,
+ attr->rta_len - rta_len))
+ return 1;
+ attr = RTA_NEXT(attr, attrlen);
}
+
return 0;
}
-#endif /* CONFIG_CLIENT_MLME */
-static int wpa_driver_nl80211_set_param(void *priv, const char *param)
+static int i802_is_scan_complete(int s, int ifindex)
{
-#ifdef CONFIG_CLIENT_MLME
- struct wpa_driver_nl80211_data *drv = priv;
+ char buf[1024];
+ int left;
+ struct nlmsghdr *h;
- if (param == NULL)
+ left = recv(s, buf, sizeof(buf), MSG_DONTWAIT);
+ if (left < 0) {
+ perror("recv(netlink)");
return 0;
+ }
+
+ h = (struct nlmsghdr *) buf;
+ while (left >= (int) sizeof(*h)) {
+ int len, plen;
- wpa_printf(MSG_DEBUG, "%s: param='%s'", __func__, param);
+ len = h->nlmsg_len;
+ plen = len - sizeof(*h);
+ if (len > left || plen < 0) {
+ wpa_printf(MSG_DEBUG, "Malformed netlink message: "
+ "len=%d left=%d plen=%d",
+ len, left, plen);
+ break;
+ }
- if (os_strstr(param, "use_mlme=1")) {
- wpa_printf(MSG_DEBUG, "nl80211: Using user space MLME");
- drv->capa.flags |= WPA_DRIVER_FLAGS_USER_SPACE_MLME;
+ switch (h->nlmsg_type) {
+ case RTM_NEWLINK:
+ if (i802_is_rtm_scan_complete(ifindex, h, plen))
+ return 1;
+ break;
+ }
- if (wpa_driver_nl80211_open_mlme(drv))
- return -1;
+ len = NLMSG_ALIGN(len);
+ left -= len;
+ h = (struct nlmsghdr *) ((char *) h + len);
}
-#endif /* CONFIG_CLIENT_MLME */
return 0;
}
-#ifdef CONFIG_CLIENT_MLME
+static int i802_ht_scan(struct wpa_driver_nl80211_data *drv)
+{
+ struct iwreq iwr;
+ int s, res, ifindex;
+ struct sockaddr_nl local;
+ time_t now, end;
+ fd_set rfds;
+ struct timeval tv;
-struct phy_info_arg {
- u16 *num_modes;
- struct wpa_hw_modes *modes;
-};
+ wpa_printf(MSG_DEBUG, "nl80211: Scanning overlapping BSSes before "
+ "starting HT 20/40 MHz BSS");
+
+ /* Request a new scan */
+ /* TODO: would be enough to scan the selected band */
+ os_memset(&iwr, 0, sizeof(iwr));
+ os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
+ if (ioctl(drv->ioctl_sock, SIOCSIWSCAN, &iwr) < 0) {
+ perror("ioctl[SIOCSIWSCAN]");
+ return -1;
+ }
+ ifindex = if_nametoindex(drv->ifname);
-static int phy_info_handler(struct nl_msg *msg, void *arg)
-{
- struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
- struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
- struct phy_info_arg *phy_info = arg;
+ /* Wait for scan completion event or timeout */
+ s = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
+ if (s < 0) {
+ perror("socket(PF_NETLINK,SOCK_RAW,NETLINK_ROUTE)");
+ return -1;
+ }
- struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1];
+ os_memset(&local, 0, sizeof(local));
+ local.nl_family = AF_NETLINK;
+ local.nl_groups = RTMGRP_LINK;
+ if (bind(s, (struct sockaddr *) &local, sizeof(local)) < 0) {
+ perror("bind(netlink)");
+ close(s);
+ return -1;
+ }
- struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1];
- static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1]
- = {
- [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
- [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
- [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG },
- [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG },
- [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
- };
+ time(&end);
+ end += 30; /* Wait at most 30 seconds for scan results */
+ for (;;) {
+ time(&now);
+ tv.tv_sec = end > now ? end - now : 0;
+ tv.tv_usec = 0;
+ FD_ZERO(&rfds);
+ FD_SET(s, &rfds);
+ res = select(s + 1, &rfds, NULL, NULL, &tv);
+ if (res < 0) {
+ perror("select");
+ /* Assume results are ready after 10 seconds wait */
+ os_sleep(10, 0);
+ break;
+ } else if (res) {
+ if (i802_is_scan_complete(s, ifindex)) {
+ wpa_printf(MSG_DEBUG, "nl80211: Scan "
+ "completed");
+ break;
+ }
+ } else {
+ wpa_printf(MSG_DEBUG, "nl80211: Scan timeout");
+ /* Assume results are ready to be read now */
+ break;
+ }
+ }
- struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1];
- static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = {
- [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 },
- [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] =
- { .type = NLA_FLAG },
- };
+ close(s);
- struct nlattr *nl_band;
- struct nlattr *nl_freq;
- struct nlattr *nl_rate;
- int rem_band, rem_freq, rem_rate;
- struct wpa_hw_modes *mode;
- int idx, mode_is_set;
+ return i802_get_ht_scan_res(drv);
+}
+#endif /* CONFIG_IEEE80211N */
- nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
- genlmsg_attrlen(gnlh, 0), NULL);
- if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
- return NL_SKIP;
+static int i802_init_sockets(struct wpa_driver_nl80211_data *drv, const u8 *bssid)
+{
+ struct ifreq ifr;
+ int ret;
- nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS],
- rem_band) {
- mode = os_realloc(phy_info->modes,
- (*phy_info->num_modes + 1) * sizeof(*mode));
- if (!mode)
- return NL_SKIP;
- phy_info->modes = mode;
+ drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
+ if (drv->ioctl_sock < 0) {
+ perror("socket[PF_INET,SOCK_DGRAM]");
+ return -1;
+ }
- mode_is_set = 0;
+ /* start listening for EAPOL on the default AP interface */
+ add_ifidx(drv, if_nametoindex(drv->ifname));
- mode = &phy_info->modes[*(phy_info->num_modes)];
- os_memset(mode, 0, sizeof(*mode));
- *(phy_info->num_modes) += 1;
+ if (hostapd_set_iface_flags(drv, drv->ifname, 0))
+ return -1;
- nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
- nla_len(nl_band), NULL);
+ if (bssid) {
+ os_strlcpy(ifr.ifr_name, drv->ifname, IFNAMSIZ);
+ memcpy(ifr.ifr_hwaddr.sa_data, bssid, ETH_ALEN);
+ ifr.ifr_hwaddr.sa_family = ARPHRD_ETHER;
- nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS],
- rem_freq) {
- nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX,
- nla_data(nl_freq), nla_len(nl_freq),
- freq_policy);
- if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
- continue;
- mode->num_channels++;
+ if (ioctl(drv->ioctl_sock, SIOCSIFHWADDR, &ifr)) {
+ perror("ioctl(SIOCSIFHWADDR)");
+ return -1;
}
+ }
- mode->channels = os_zalloc(mode->num_channels *
- sizeof(struct wpa_channel_data));
- if (!mode->channels)
- return NL_SKIP;
+ /*
+ * initialise generic netlink and nl80211
+ */
+ drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
+ if (!drv->nl_cb) {
+ printf("Failed to allocate netlink callbacks.\n");
+ return -1;
+ }
- idx = 0;
+ drv->nl_handle = nl_handle_alloc_cb(drv->nl_cb);
+ if (!drv->nl_handle) {
+ printf("Failed to allocate netlink handle.\n");
+ return -1;
+ }
- nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS],
- rem_freq) {
- nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX,
- nla_data(nl_freq), nla_len(nl_freq),
- freq_policy);
- if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
- continue;
+ if (genl_connect(drv->nl_handle)) {
+ printf("Failed to connect to generic netlink.\n");
+ return -1;
+ }
- mode->channels[idx].freq = nla_get_u32(
- tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
- mode->channels[idx].flag |= WPA_CHAN_W_SCAN |
- WPA_CHAN_W_ACTIVE_SCAN |
- WPA_CHAN_W_IBSS;
+#ifdef CONFIG_LIBNL20
+ if (genl_ctrl_alloc_cache(drv->nl_handle, &drv->nl_cache) < 0) {
+ printf("Failed to allocate generic netlink cache.\n");
+ return -1;
+ }
+#else /* CONFIG_LIBNL20 */
+ drv->nl_cache = genl_ctrl_alloc_cache(drv->nl_handle);
+ if (!drv->nl_cache) {
+ printf("Failed to allocate generic netlink cache.\n");
+ return -1;
+ }
+#endif /* CONFIG_LIBNL20 */
- if (!mode_is_set) {
- /* crude heuristic */
- if (mode->channels[idx].freq < 4000)
- mode->mode = WPA_MODE_IEEE80211B;
- else
- mode->mode = WPA_MODE_IEEE80211A;
- mode_is_set = 1;
- }
+ drv->nl80211 = genl_ctrl_search_by_name(drv->nl_cache, "nl80211");
+ if (!drv->nl80211) {
+ printf("nl80211 not found.\n");
+ return -1;
+ }
- /* crude heuristic */
- if (mode->channels[idx].freq < 4000) {
- if (mode->channels[idx].freq == 2848)
- mode->channels[idx].chan = 14;
- else
- mode->channels[idx].chan =
- (mode->channels[idx].freq -
- 2407) / 5;
- } else
- mode->channels[idx].chan =
- mode->channels[idx].freq / 5 - 1000;
+ ret = nl_get_multicast_id(drv, "nl80211", "scan");
+ if (ret >= 0)
+ ret = nl_socket_add_membership(drv->nl_handle, ret);
+ if (ret < 0) {
+ wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast "
+ "membership for scan events: %d (%s)",
+ ret, strerror(-ret));
+ }
- if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
- mode->channels[idx].flag &= ~WPA_CHAN_W_SCAN;
- if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN])
- mode->channels[idx].flag &=
- ~WPA_CHAN_W_ACTIVE_SCAN;
- if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS])
- mode->channels[idx].flag &= ~WPA_CHAN_W_IBSS;
- idx++;
- }
+ ret = nl_get_multicast_id(drv, "nl80211", "mlme");
+ if (ret >= 0)
+ ret = nl_socket_add_membership(drv->nl_handle, ret);
+ if (ret < 0) {
+ wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast "
+ "membership for mlme events: %d (%s)",
+ ret, strerror(-ret));
+ }
- nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES],
- rem_rate) {
- nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX,
- nla_data(nl_rate), nla_len(nl_rate),
- rate_policy);
- if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
- continue;
- mode->num_rates++;
+ eloop_register_read_sock(nl_socket_get_fd(drv->nl_handle),
+ wpa_driver_nl80211_event_receive, drv,
+ drv->hapd);
+
+#ifdef CONFIG_IEEE80211N
+ if (drv->ht_40mhz_scan) {
+ if (nl80211_set_mode(drv, drv->ifname, NL80211_IFTYPE_STATION)
+ || hostapd_set_iface_flags(drv, drv->ifname, 1) ||
+ i802_ht_scan(drv) ||
+ hostapd_set_iface_flags(drv, drv->ifname, 0)) {
+ wpa_printf(MSG_ERROR, "Failed to scan channels for "
+ "HT 40 MHz operations");
+ return -1;
}
+ }
+#endif /* CONFIG_IEEE80211N */
- mode->rates = os_zalloc(mode->num_rates *
- sizeof(struct wpa_rate_data));
- if (!mode->rates)
- return NL_SKIP;
+ /* Initialise a monitor interface */
+ if (nl80211_create_monitor_interface(drv))
+ return -1;
- idx = 0;
+ if (nl80211_set_mode(drv, drv->ifname, NL80211_IFTYPE_AP))
+ goto fail1;
- nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES],
- rem_rate) {
- nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX,
- nla_data(nl_rate), nla_len(nl_rate),
- rate_policy);
- if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
- continue;
- mode->rates[idx].rate = nla_get_u32(
- tb_rate[NL80211_BITRATE_ATTR_RATE]);
+ if (hostapd_set_iface_flags(drv, drv->ifname, 1))
+ goto fail1;
- /* crude heuristic */
- if (mode->mode == WPA_MODE_IEEE80211B &&
- mode->rates[idx].rate > 200)
- mode->mode = WPA_MODE_IEEE80211G;
+ drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE));
+ if (drv->eapol_sock < 0) {
+ perror("socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE)");
+ goto fail1;
+ }
- if (tb_rate[NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE])
- mode->rates[idx].flags |= WPA_RATE_PREAMBLE2;
+ if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL))
+ {
+ printf("Could not register read socket for eapol\n");
+ return -1;
+ }
- idx++;
- }
+ memset(&ifr, 0, sizeof(ifr));
+ os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
+ if (ioctl(drv->ioctl_sock, SIOCGIFHWADDR, &ifr) != 0) {
+ perror("ioctl(SIOCGIFHWADDR)");
+ goto fail1;
}
- return NL_SKIP;
-}
+ if (ifr.ifr_hwaddr.sa_family != ARPHRD_ETHER) {
+ printf("Invalid HW-addr family 0x%04x\n",
+ ifr.ifr_hwaddr.sa_family);
+ goto fail1;
+ }
+ memcpy(drv->hapd->own_addr, ifr.ifr_hwaddr.sa_data, ETH_ALEN);
+ return 0;
-static struct wpa_hw_modes *
-wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags)
-{
- struct wpa_driver_nl80211_data *drv = priv;
- struct nl_msg *msg;
- struct phy_info_arg result = {
- .num_modes = num_modes,
- .modes = NULL,
- };
+fail1:
+ nl80211_remove_iface(drv, drv->monitor_ifidx);
+ return -1;
+}
- *num_modes = 0;
- *flags = 0;
- msg = nlmsg_alloc();
- if (!msg)
- return NULL;
+static int i802_get_inact_sec(void *priv, const u8 *addr)
+{
+ struct hostap_sta_driver_data data;
+ int ret;
- genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
- 0, NL80211_CMD_GET_WIPHY, 0);
+ data.inactive_msec = (unsigned long) -1;
+ ret = i802_read_sta_data(priv, &data, addr);
+ if (ret || data.inactive_msec == (unsigned long) -1)
+ return -1;
+ return data.inactive_msec / 1000;
+}
- NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
- if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0)
- return result.modes;
-nla_put_failure:
- return NULL;
+static int i802_sta_clear_stats(void *priv, const u8 *addr)
+{
+#if 0
+ /* TODO */
+#endif
+ return 0;
}
-static int wpa_driver_nl80211_set_channel(void *priv, wpa_hw_mode phymode,
- int chan, int freq)
+static int i802_sta_deauth(void *priv, const u8 *addr, int reason)
{
- return wpa_driver_nl80211_set_freq(priv, freq);
+ struct wpa_driver_nl80211_data *drv = priv;
+ struct ieee80211_mgmt mgmt;
+
+ memset(&mgmt, 0, sizeof(mgmt));
+ mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
+ WLAN_FC_STYPE_DEAUTH);
+ memcpy(mgmt.da, addr, ETH_ALEN);
+ memcpy(mgmt.sa, drv->hapd->own_addr, ETH_ALEN);
+ memcpy(mgmt.bssid, drv->hapd->own_addr, ETH_ALEN);
+ mgmt.u.deauth.reason_code = host_to_le16(reason);
+ return wpa_driver_nl80211_send_mlme(drv, (u8 *) &mgmt,
+ IEEE80211_HDRLEN +
+ sizeof(mgmt.u.deauth));
}
-static int wpa_driver_nl80211_send_mlme(void *priv, const u8 *data,
- size_t data_len)
+static int i802_sta_disassoc(void *priv, const u8 *addr, int reason)
{
struct wpa_driver_nl80211_data *drv = priv;
- __u8 rtap_hdr[] = {
- 0x00, 0x00, /* radiotap version */
- 0x0e, 0x00, /* radiotap length */
- 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */
- 0x0c, /* F_WEP | F_FRAG (encrypt/fragment if required) */
- 0x00, /* padding */
- 0x00, 0x00, /* RX and TX flags to indicate that */
- 0x00, 0x00, /* this is the injected frame directly */
- };
- struct iovec iov[2] = {
- {
- .iov_base = &rtap_hdr,
- .iov_len = sizeof(rtap_hdr),
- },
- {
- .iov_base = (void *) data,
- .iov_len = data_len,
- }
- };
- struct msghdr msg = {
- .msg_name = NULL,
- .msg_namelen = 0,
- .msg_iov = iov,
- .msg_iovlen = 2,
- .msg_control = NULL,
- .msg_controllen = 0,
- .msg_flags = 0,
- };
+ struct ieee80211_mgmt mgmt;
+
+ memset(&mgmt, 0, sizeof(mgmt));
+ mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
+ WLAN_FC_STYPE_DISASSOC);
+ memcpy(mgmt.da, addr, ETH_ALEN);
+ memcpy(mgmt.sa, drv->hapd->own_addr, ETH_ALEN);
+ memcpy(mgmt.bssid, drv->hapd->own_addr, ETH_ALEN);
+ mgmt.u.disassoc.reason_code = host_to_le16(reason);
+ return wpa_driver_nl80211_send_mlme(drv, (u8 *) &mgmt,
+ IEEE80211_HDRLEN +
+ sizeof(mgmt.u.disassoc));
+}
- if (sendmsg(drv->monitor_sock, &msg, 0) < 0) {
- perror("send[MLME]");
- return -1;
- }
- return 0;
+static const struct hostapd_neighbor_bss *
+i802_get_neighbor_bss(void *priv, size_t *num)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+ *num = drv->num_neighbors;
+ return drv->neighbors;
}
-static int wpa_driver_nl80211_mlme_add_sta(void *priv, const u8 *addr,
- const u8 *supp_rates,
- size_t supp_rates_len)
+static void *i802_init_bssid(struct hostapd_data *hapd, const u8 *bssid)
{
- struct wpa_driver_nl80211_data *drv = priv;
- struct nl_msg *msg;
- int ret = -1;
+ struct wpa_driver_nl80211_data *drv;
+ size_t i;
- msg = nlmsg_alloc();
- if (!msg)
- return -ENOMEM;
+ drv = os_zalloc(sizeof(struct wpa_driver_nl80211_data));
+ if (drv == NULL) {
+ printf("Could not allocate memory for i802 driver data\n");
+ return NULL;
+ }
- genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
- 0, NL80211_CMD_NEW_STATION, 0);
+ drv->hapd = hapd;
+ memcpy(drv->ifname, hapd->conf->iface, sizeof(drv->ifname));
+ memcpy(drv->bss.ifname, hapd->conf->iface, sizeof(drv->bss.ifname));
+ drv->ifindex = if_nametoindex(drv->ifname);
- NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
- NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
- /* TODO: Get proper Association ID and listen interval */
- NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, 1);
- NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, supp_rates_len,
- supp_rates);
- NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL, 1);
+ drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int);
+ drv->if_indices = drv->default_if_indices;
+ for (i = 0; i < hapd->iface->num_bss; i++) {
+ struct hostapd_data *bss = hapd->iface->bss[i];
+ if (bss->conf->bridge)
+ add_ifidx(drv, if_nametoindex(bss->conf->bridge));
+ }
+ drv->ht_40mhz_scan = hapd->iconf->secondary_channel != 0;
- ret = send_and_recv_msgs(drv, msg, NULL, NULL);
- /* ignore EEXIST, this happens if a STA associates while associated */
- if (ret == -EEXIST || ret >= 0)
- ret = 0;
+ if (i802_init_sockets(drv, bssid))
+ goto failed;
-nla_put_failure:
- return ret;
+ return drv;
+
+failed:
+ free(drv);
+ return NULL;
+}
+
+
+static void *i802_init(struct hostapd_data *hapd)
+{
+ return i802_init_bssid(hapd, NULL);
}
-static int wpa_driver_nl80211_mlme_remove_sta(void *priv, const u8 *addr)
+static void i802_deinit(void *priv)
{
struct wpa_driver_nl80211_data *drv = priv;
- struct nl_msg *msg;
- int ret = -1;
+ struct i802_bss *bss, *prev;
+
+ if (drv->last_freq_ht) {
+ /* Clear HT flags from the driver */
+ struct hostapd_freq_params freq;
+ os_memset(&freq, 0, sizeof(freq));
+ freq.freq = drv->last_freq;
+ i802_set_freq(priv, &freq);
+ }
- msg = nlmsg_alloc();
- if (!msg)
- return -ENOMEM;
+ i802_del_beacon(drv);
- genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
- 0, NL80211_CMD_DEL_STATION, 0);
+ /* remove monitor interface */
+ nl80211_remove_iface(drv, drv->monitor_ifidx);
- NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
- NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
+ (void) hostapd_set_iface_flags(drv, drv->ifname, 0);
- ret = 0;
+ if (drv->monitor_sock >= 0) {
+ eloop_unregister_read_sock(drv->monitor_sock);
+ close(drv->monitor_sock);
+ }
+ if (drv->ioctl_sock >= 0)
+ close(drv->ioctl_sock);
+ if (drv->eapol_sock >= 0) {
+ eloop_unregister_read_sock(drv->eapol_sock);
+ close(drv->eapol_sock);
+ }
- ret = send_and_recv_msgs(drv, msg, NULL, NULL);
- return ret;
+ eloop_unregister_read_sock(nl_socket_get_fd(drv->nl_handle));
+ genl_family_put(drv->nl80211);
+ nl_cache_free(drv->nl_cache);
+ nl_handle_destroy(drv->nl_handle);
+ nl_cb_put(drv->nl_cb);
-nla_put_failure:
- return -ENOBUFS;
+ if (drv->if_indices != drv->default_if_indices)
+ free(drv->if_indices);
+
+ os_free(drv->neighbors);
+
+ bss = drv->bss.next;
+ while (bss) {
+ prev = bss;
+ bss = bss->next;
+ os_free(bss);
+ }
+
+ free(drv);
}
-#endif /* CONFIG_CLIENT_MLME */
+#endif /* HOSTAPD */
const struct wpa_driver_ops wpa_driver_nl80211_ops = {
.desc = "Linux nl80211/cfg80211",
.get_bssid = wpa_driver_nl80211_get_bssid,
.get_ssid = wpa_driver_nl80211_get_ssid,
- .set_wpa = wpa_driver_nl80211_set_wpa,
.set_key = wpa_driver_nl80211_set_key,
- .set_countermeasures = wpa_driver_nl80211_set_countermeasures,
- .set_drop_unencrypted = wpa_driver_nl80211_set_drop_unencrypted,
- .scan = wpa_driver_nl80211_scan,
+ .scan2 = wpa_driver_nl80211_scan,
.get_scan_results2 = wpa_driver_nl80211_get_scan_results,
.deauthenticate = wpa_driver_nl80211_deauthenticate,
.disassociate = wpa_driver_nl80211_disassociate,
- .set_mode = wpa_driver_nl80211_set_mode,
+ .authenticate = wpa_driver_nl80211_authenticate,
.associate = wpa_driver_nl80211_associate,
- .set_auth_alg = wpa_driver_nl80211_set_auth_alg,
.init = wpa_driver_nl80211_init,
.deinit = wpa_driver_nl80211_deinit,
- .set_param = wpa_driver_nl80211_set_param,
- .add_pmkid = wpa_driver_nl80211_add_pmkid,
- .remove_pmkid = wpa_driver_nl80211_remove_pmkid,
- .flush_pmkid = wpa_driver_nl80211_flush_pmkid,
.get_capa = wpa_driver_nl80211_get_capa,
.set_operstate = wpa_driver_nl80211_set_operstate,
.set_country = wpa_driver_nl80211_set_country,
- .set_probe_req_ie = wpa_driver_nl80211_set_probe_req_ie,
-#ifdef CONFIG_CLIENT_MLME
- .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data,
- .set_channel = wpa_driver_nl80211_set_channel,
- .set_ssid = wpa_driver_nl80211_set_ssid,
- .set_bssid = wpa_driver_nl80211_set_bssid,
+#ifdef CONFIG_AP
+ .set_beacon = wpa_driver_nl80211_set_beacon,
+ .set_beacon_int = wpa_driver_nl80211_set_beacon_int,
.send_mlme = wpa_driver_nl80211_send_mlme,
- .mlme_add_sta = wpa_driver_nl80211_mlme_add_sta,
- .mlme_remove_sta = wpa_driver_nl80211_mlme_remove_sta,
-#endif /* CONFIG_CLIENT_MLME */
+#endif /* CONFIG_AP */
+#if defined(CONFIG_AP) || defined(HOSTAPD)
+ .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data,
+#endif /* CONFIG_AP || HOSTAPD */
+#ifdef HOSTAPD
+ .hapd_init = i802_init,
+ .init_bssid = i802_init_bssid,
+ .hapd_deinit = i802_deinit,
+ .hapd_set_key = i802_set_key,
+ .get_seqnum = i802_get_seqnum,
+ .flush = i802_flush,
+ .read_sta_data = i802_read_sta_data,
+ .hapd_send_eapol = i802_send_eapol,
+ .sta_set_flags = i802_sta_set_flags,
+ .sta_deauth = i802_sta_deauth,
+ .sta_disassoc = i802_sta_disassoc,
+ .sta_remove = i802_sta_remove,
+ .sta_add = i802_sta_add,
+ .get_inact_sec = i802_get_inact_sec,
+ .sta_clear_stats = i802_sta_clear_stats,
+ .set_freq = i802_set_freq,
+ .set_rts = i802_set_rts,
+ .set_frag = i802_set_frag,
+ .set_retry = i802_set_retry,
+ .set_rate_sets = i802_set_rate_sets,
+ .hapd_set_beacon = i802_set_beacon,
+ .hapd_set_beacon_int = i802_set_beacon_int,
+ .set_cts_protect = i802_set_cts_protect,
+ .set_preamble = i802_set_preamble,
+ .set_short_slot_time = i802_set_short_slot_time,
+ .set_tx_queue_params = i802_set_tx_queue_params,
+ .bss_add = i802_bss_add,
+ .bss_remove = i802_bss_remove,
+ .if_add = i802_if_add,
+ .if_update = i802_if_update,
+ .if_remove = i802_if_remove,
+ .set_sta_vlan = i802_set_sta_vlan,
+ .get_neighbor_bss = i802_get_neighbor_bss,
+#endif /* HOSTAPD */
};
projects / wpasupplicant / blobdiff