hostapd/mac80211: implement support for AP+STA

SVN-Revision: 23602
This commit is contained in:
Felix Fietkau 2010-10-23 23:39:54 +00:00
parent 0fbff7de83
commit 35cdc5d722
7 changed files with 386 additions and 3 deletions

View file

@ -239,7 +239,7 @@ endef
define Build/Compile/wpad
echo ` \
$(call Build/RunMake,hostapd,-s MULTICALL=1 dump_cflags); \
$(call Build/RunMake,wpa_supplicant,-s dump_cflags) | \
$(call Build/RunMake,wpa_supplicant,-s MULTICALL=1 dump_cflags) | \
sed -e 's,-n ,,g' -e 's,$(TARGET_CFLAGS),,' \
` > $(PKG_BUILD_DIR)/.cflags
$(call Build/RunMake,hostapd, \

View file

@ -2,6 +2,7 @@ wpa_supplicant_setup_vif() {
local vif="$1"
local driver="$2"
local key="$key"
local options="$3"
# wpa_supplicant should use wext for mac80211 cards
[ "$driver" = "mac80211" ] && driver='wext'
@ -133,5 +134,5 @@ network={
}
EOF
[ -z "$proto" -a "$key_mgmt" != "NONE" ] || \
wpa_supplicant ${bridge:+ -b $bridge} -B -P "/var/run/wifi-${ifname}.pid" -D ${driver:-wext} -i "$ifname" -c /var/run/wpa_supplicant-$ifname.conf
wpa_supplicant ${bridge:+ -b $bridge} -B -P "/var/run/wifi-${ifname}.pid" -D ${driver:-wext} -i "$ifname" -c /var/run/wpa_supplicant-$ifname.conf $options
}

View file

@ -0,0 +1,13 @@
--- a/src/ap/hostapd.c
+++ b/src/ap/hostapd.c
@@ -112,6 +112,10 @@ int hostapd_reload_config(struct hostapd
oldconf = hapd->iconf;
iface->conf = newconf;
+ iface->freq = hostapd_hw_get_freq(hapd, hapd->iconf->channel);
+ if (iface->current_mode)
+ hostapd_prepare_rates(hapd, iface->current_mode);
+
for (j = 0; j < iface->num_bss; j++) {
hapd = iface->bss[j];
hapd->iconf = newconf;

View file

@ -0,0 +1,63 @@
--- a/src/drivers/driver_nl80211.c
+++ b/src/drivers/driver_nl80211.c
@@ -1604,23 +1604,41 @@ wpa_driver_nl80211_finish_drv_init(struc
}
-static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv)
+static int wpa_driver_nl80211_del_bss_beacon(struct i802_bss *bss)
{
+ struct wpa_driver_nl80211_data *drv = bss->drv;
struct nl_msg *msg;
+ bss->beacon_set = 0;
+
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, drv->ifindex);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
return send_and_recv_msgs(drv, msg, NULL, NULL);
nla_put_failure:
+ nlmsg_free(msg);
return -ENOBUFS;
}
+static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv)
+{
+ struct i802_bss *bss;
+
+ for (bss = &drv->first_bss; bss; bss = bss->next)
+ wpa_driver_nl80211_del_bss_beacon(bss);
+}
+
+static int wpa_driver_nl80211_stop_ap(void *priv)
+{
+ struct i802_bss *bss = priv;
+
+ wpa_driver_nl80211_del_beacon(bss->drv);
+}
/**
* wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface
@@ -5512,4 +5530,5 @@ const struct wpa_driver_ops wpa_driver_n
.send_ft_action = nl80211_send_ft_action,
.signal_monitor = nl80211_signal_monitor,
.send_frame = nl80211_send_frame,
+ .stop_ap = wpa_driver_nl80211_stop_ap,
};
--- a/src/drivers/driver.h
+++ b/src/drivers/driver.h
@@ -1774,6 +1774,8 @@ struct wpa_driver_ops {
*/
int (*send_frame)(void *priv, const u8 *data, size_t data_len,
int encrypt);
+
+ int (*stop_ap)(void *priv);
};

View file

@ -0,0 +1,96 @@
--- a/hostapd/ctrl_iface.c
+++ b/hostapd/ctrl_iface.c
@@ -35,6 +35,7 @@
#include "ap/wps_hostapd.h"
#include "ap/ctrl_iface_ap.h"
#include "ctrl_iface.h"
+#include "config_file.h"
struct wpa_ctrl_dst {
@@ -45,6 +46,7 @@ struct wpa_ctrl_dst {
int errors;
};
+static char *reload_opts = NULL;
static void hostapd_ctrl_iface_send(struct hostapd_data *hapd, int level,
const char *buf, size_t len);
@@ -315,6 +317,66 @@ static int hostapd_ctrl_iface_wps_oob(st
#endif /* CONFIG_WPS_OOB */
#endif /* CONFIG_WPS */
+static int hostapd_ctrl_iface_set_down(struct hostapd_data *hapd)
+{
+ if (hapd->driver->stop_ap)
+ hapd->driver->stop_ap(hapd->drv_priv);
+ return 0;
+}
+
+static char *get_option(char *opt, char *str)
+{
+ int len = strlen(str);
+
+ if (!strncmp(opt, str, len))
+ return opt + len;
+ else
+ return NULL;
+}
+
+static struct hostapd_config *hostapd_ctrl_iface_config_read(const char *fname)
+{
+ struct hostapd_config *conf;
+ char *opt, *val;
+
+ conf = hostapd_config_read(fname);
+ if (!conf)
+ return NULL;
+
+ for (opt = strtok(reload_opts, " ");
+ opt;
+ opt = strtok(NULL, " ")) {
+
+ if ((val = get_option(opt, "channel=")))
+ conf->channel = atoi(val);
+ else if ((val = get_option(opt, "ht_capab=")))
+ conf->ht_capab = atoi(val);
+ else if ((val = get_option(opt, "ht_capab_mask=")))
+ conf->ht_capab &= atoi(val);
+ else if ((val = get_option(opt, "sec_chan=")))
+ conf->secondary_channel = atoi(val);
+ else if ((val = get_option(opt, "hwmode=")))
+ conf->hw_mode = atoi(val);
+ else if ((val = get_option(opt, "ieee80211n=")))
+ conf->ieee80211n = atoi(val);
+ else
+ break;
+ }
+
+ return conf;
+}
+
+static int hostapd_ctrl_iface_reload(struct hostapd_data *hapd, char *txt)
+{
+ struct hostapd_iface *iface = hapd->iface;
+
+ iface->config_read_cb = hostapd_ctrl_iface_config_read;
+ reload_opts = txt;
+
+ hostapd_reload_config(iface);
+
+ iface->config_read_cb = hostapd_config_read;
+}
static void hostapd_ctrl_iface_receive(int sock, void *eloop_ctx,
void *sock_ctx)
@@ -379,6 +441,10 @@ static void hostapd_ctrl_iface_receive(i
reply_len += res;
}
#endif /* CONFIG_NO_RADIUS */
+ } else if (os_strcmp(buf, "DOWN") == 0) {
+ hostapd_ctrl_iface_set_down(hapd);
+ } else if (os_strncmp(buf, "RELOAD ", 7) == 0) {
+ hostapd_ctrl_iface_reload(hapd, buf + 7);
} else if (os_strcmp(buf, "STA-FIRST") == 0) {
reply_len = hostapd_ctrl_iface_sta_first(hapd, reply,
reply_size);

View file

@ -0,0 +1,208 @@
--- a/wpa_supplicant/wpa_supplicant_i.h
+++ b/wpa_supplicant/wpa_supplicant_i.h
@@ -98,6 +98,8 @@ struct wpa_interface {
* receiving of EAPOL frames from an additional interface.
*/
const char *bridge_ifname;
+
+ const char *hostapd_ctrl;
};
/**
@@ -316,6 +318,8 @@ struct wpa_supplicant {
#endif /* CONFIG_CTRL_IFACE_DBUS_NEW */
char bridge_ifname[16];
+ struct wpa_ctrl *hostapd;
+
char *confname;
struct wpa_config *conf;
int countermeasures;
--- a/wpa_supplicant/Makefile
+++ b/wpa_supplicant/Makefile
@@ -51,6 +51,11 @@ OBJS_p += ../src/utils/wpa_debug.o
OBJS_p += ../src/utils/wpabuf.o
OBJS_c = wpa_cli.o ../src/common/wpa_ctrl.o
+ifdef MULTICALL
+OBJS += ../src/common/wpa_ctrl.o
+CFLAGS += -DMULTICALL
+endif
+
-include .config
-include $(if $(MULTICALL),../hostapd/.config)
--- a/wpa_supplicant/wpa_supplicant.c
+++ b/wpa_supplicant/wpa_supplicant.c
@@ -120,6 +120,58 @@ extern int wpa_debug_show_keys;
extern int wpa_debug_timestamp;
extern struct wpa_driver_ops *wpa_drivers[];
+#ifdef MULTICALL
+static int hostapd_stop(struct wpa_supplicant *wpa_s)
+{
+ const char *cmd = "DOWN";
+ char buf[256];
+ int len = sizeof(buf);
+
+ if (wpa_ctrl_request(wpa_s->hostapd, cmd, os_strlen(cmd), buf, &len, NULL) < 0) {
+ wpa_printf(MSG_ERROR, "\nFailed to stop hostapd AP interfaces\n");
+ return -1;
+ }
+ return 0;
+}
+
+static int hostapd_reload(struct wpa_supplicant *wpa_s, struct wpa_bss *bss)
+{
+ char *cmd = NULL;
+ char buf[256];
+ int len = sizeof(buf);
+ int channel, hw_mode;
+ int ret;
+
+ if (!bss)
+ return;
+
+ if (bss->freq < 4000) {
+ hw_mode = HOSTAPD_MODE_IEEE80211G;
+ channel = (bss->freq - 2407) / 5;
+ } else {
+ hw_mode = HOSTAPD_MODE_IEEE80211A;
+ channel = (bss->freq - 5000) / 5;
+ }
+
+ if (asprintf(&cmd, "RELOAD channel=%d sec_chan=0 hw_mode=%d ht_capab_mask=%d ieee80211n=%d",
+ channel, hw_mode, bss->ht_capab, !!bss->ht_capab) < 0) {
+ fprintf(stderr, "ASPRINTF FAILED\n");
+ exit(1);
+ return -1;
+ }
+
+ wpa_printf(MSG_ERROR, "\n\n-------- RUN COMMAND: %s\n\n", cmd);
+ ret = wpa_ctrl_request(wpa_s->hostapd, cmd, os_strlen(cmd), buf, &len, NULL);
+ free(cmd);
+
+ if (ret < 0) {
+ wpa_printf(MSG_ERROR, "\nFailed to reload hostapd AP interfaces\n");
+ return -1;
+ }
+ return 0;
+}
+#endif
+
/* Configure default/group WEP keys for static WEP */
int wpa_set_wep_keys(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid)
{
@@ -548,6 +600,10 @@ void wpa_supplicant_set_state(struct wpa
#ifndef IEEE8021X_EAPOL
wpa_drv_set_supp_port(wpa_s, 1);
#endif
+#ifdef MULTICALL
+ if (wpa_s->hostapd)
+ hostapd_reload(wpa_s, wpa_s->current_bss);
+#endif
} else if (state == WPA_DISCONNECTED || state == WPA_ASSOCIATING ||
state == WPA_ASSOCIATED) {
wpa_s->new_connection = 1;
@@ -1957,6 +2013,21 @@ static int wpa_supplicant_init_iface(str
os_strlcpy(wpa_s->bridge_ifname, iface->bridge_ifname,
sizeof(wpa_s->bridge_ifname));
}
+#ifdef MULTICALL
+ if (iface->hostapd_ctrl) {
+ char *cmd = "DOWN";
+ char buf[256];
+ int len = sizeof(buf);
+
+ wpa_s->hostapd = wpa_ctrl_open(iface->hostapd_ctrl);
+ if (!wpa_s->hostapd) {
+ wpa_printf(MSG_ERROR, "\nFailed to connect to hostapd\n");
+ return -1;
+ }
+ if (hostapd_stop(wpa_s) < 0)
+ return -1;
+ }
+#endif
/* RSNA Supplicant Key Management - INITIALIZE */
eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
--- a/wpa_supplicant/bss.c
+++ b/wpa_supplicant/bss.c
@@ -17,6 +17,7 @@
#include "utils/common.h"
#include "utils/eloop.h"
#include "common/ieee802_11_defs.h"
+#include "common/ieee802_11_common.h"
#include "drivers/driver.h"
#include "wpa_supplicant_i.h"
#include "config.h"
@@ -89,6 +90,8 @@ struct wpa_bss * wpa_bss_get(struct wpa_
static void wpa_bss_copy_res(struct wpa_bss *dst, struct wpa_scan_res *src)
{
+ struct ieee80211_ht_capabilities *capab;
+ struct ieee802_11_elems elems;
os_time_t usec;
dst->flags = src->flags;
@@ -101,6 +104,12 @@ static void wpa_bss_copy_res(struct wpa_
dst->level = src->level;
dst->tsf = src->tsf;
+ memset(&elems, 0, sizeof(elems));
+ ieee802_11_parse_elems((u8 *) (src + 1), src->ie_len, &elems, 0);
+ capab = (struct ieee80211_ht_capabilities *) elems.ht_capabilities;
+ if (capab)
+ dst->ht_capab = le_to_host16(capab->ht_capabilities_info);
+
os_get_time(&dst->last_update);
dst->last_update.sec -= src->age / 1000;
usec = (src->age % 1000) * 1000;
--- a/wpa_supplicant/bss.h
+++ b/wpa_supplicant/bss.h
@@ -56,6 +56,7 @@ struct wpa_bss {
unsigned int flags;
u8 bssid[ETH_ALEN];
u8 ssid[32];
+ u16 ht_capab;
size_t ssid_len;
int freq;
u16 beacon_int;
--- a/wpa_supplicant/main.c
+++ b/wpa_supplicant/main.c
@@ -31,7 +31,7 @@ static void usage(void)
"usage:\n"
" wpa_supplicant [-BddhKLqqstuvW] [-P<pid file>] "
"[-g<global ctrl>] \\\n"
- " -i<ifname> -c<config file> [-C<ctrl>] [-D<driver>] "
+ " -i<ifname> -c<config file> [-C<ctrl>] [-D<driver>] [-H<hostapd path>]"
"[-p<driver_param>] \\\n"
" [-b<br_ifname>] [-f<debug file>] \\\n"
" [-o<override driver>] [-O<override ctrl>] \\\n"
@@ -67,6 +67,7 @@ static void usage(void)
#endif /* CONFIG_DEBUG_SYSLOG */
printf(" -t = include timestamp in debug messages\n"
" -h = show this help text\n"
+ " -H = connect to a hostapd instance to manage state changes\n"
" -L = show license (GPL and BSD)\n"
" -o = override driver parameter for new interfaces\n"
" -O = override ctrl_interface parameter for new interfaces\n"
@@ -143,7 +144,7 @@ int main(int argc, char *argv[])
wpa_supplicant_fd_workaround();
for (;;) {
- c = getopt(argc, argv, "b:Bc:C:D:df:g:hi:KLNo:O:p:P:qstuvW");
+ c = getopt(argc, argv, "b:Bc:C:D:df:g:hH:i:KLNo:O:p:P:qstuvW");
if (c < 0)
break;
switch (c) {
@@ -184,6 +185,9 @@ int main(int argc, char *argv[])
usage();
exitcode = 0;
goto out;
+ case 'H':
+ iface->hostapd_ctrl = optarg;
+ break;
case 'i':
iface->ifname = optarg;
break;

View file

@ -222,6 +222,7 @@ enable_mac80211() {
local macidx=0
local apidx=0
fixed=""
local hostapd_ctrl=""
[ -n "$country" ] && iw reg set "$country"
[ "$channel" = "auto" -o "$channel" = "0" ] || {
@ -344,6 +345,7 @@ enable_mac80211() {
config_get mode "$vif" mode
config_get ifname "$vif" ifname
[ "$mode" = "ap" ] || continue
hostapd_ctrl="${hostapd_ctrl:-/var/run/hostapd-$phy/$ifname}"
mac80211_start_vif "$vif" "$ifname"
done
}
@ -364,7 +366,7 @@ enable_mac80211() {
;;
sta)
if eval "type wpa_supplicant_setup_vif" 2>/dev/null >/dev/null; then
wpa_supplicant_setup_vif "$vif" nl80211 || {
wpa_supplicant_setup_vif "$vif" nl80211 "${hostapd_ctrl:+-H $hostapd_ctrl}" || {
echo "enable_mac80211($device): Failed to set up wpa_supplicant for interface $ifname" >&2
# make sure this wifi interface won't accidentally stay open without encryption
ifconfig "$ifname" down