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nl80211: Share more code between hostapd and wpa_supplicant

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This gets rid of some ifdef HOSTAPD constructs and shares more
of the initialization code between hostapd and wpa_supplicant.

Signed-hostap: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2013-11-09 16:18:39 +02:00
parent 7b7de4cf94
commit 0d547d5ff8
1 changed files with 49 additions and 60 deletions
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109
src/drivers/driver_nl80211.c
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@ -297,6 +297,7 @@ struct wpa_driver_nl80211_data {
unsigned int use_monitor:1; unsigned int use_monitor:1;
unsigned int ignore_next_local_disconnect:1; unsigned int ignore_next_local_disconnect:1;
unsigned int allow_p2p_device:1; unsigned int allow_p2p_device:1;
unsigned int hostapd:1;
u64 remain_on_chan_cookie; u64 remain_on_chan_cookie;
u64 send_action_cookie; u64 send_action_cookie;
@ -310,13 +311,11 @@ struct wpa_driver_nl80211_data {
int eapol_tx_sock; int eapol_tx_sock;
#ifdef HOSTAPD
int eapol_sock; /* socket for EAPOL frames */ int eapol_sock; /* socket for EAPOL frames */
int default_if_indices[16]; int default_if_indices[16];
int *if_indices; int *if_indices;
int num_if_indices; int num_if_indices;
#endif /* HOSTAPD */
/* From failed authentication command */ /* From failed authentication command */
int auth_freq; int auth_freq;
@ -340,7 +339,8 @@ static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx,
static int wpa_driver_nl80211_set_mode(struct i802_bss *bss, static int wpa_driver_nl80211_set_mode(struct i802_bss *bss,
enum nl80211_iftype nlmode); enum nl80211_iftype nlmode);
static int static int
wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv); wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv,
const u8 *set_addr);
static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
const u8 *addr, int cmd, u16 reason_code, const u8 *addr, int cmd, u16 reason_code,
int local_state_change); int local_state_change);
@ -802,7 +802,6 @@ nla_put_failure:
} }
#ifndef HOSTAPD
static int nl80211_get_macaddr(struct i802_bss *bss) static int nl80211_get_macaddr(struct i802_bss *bss)
{ {
struct nl_msg *msg; struct nl_msg *msg;
@ -824,7 +823,6 @@ nla_put_failure:
nlmsg_free(msg); nlmsg_free(msg);
return NL80211_IFTYPE_UNSPECIFIED; return NL80211_IFTYPE_UNSPECIFIED;
} }
#endif /* HOSTAPD */
static int nl80211_register_beacons(struct wpa_driver_nl80211_data *drv, static int nl80211_register_beacons(struct wpa_driver_nl80211_data *drv,
@ -1109,7 +1107,7 @@ static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv,
if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) { if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) {
wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed " wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed "
"interface"); "interface");
wpa_driver_nl80211_finish_drv_init(drv); wpa_driver_nl80211_finish_drv_init(drv, NULL);
return 1; return 1;
} }
@ -3716,16 +3714,9 @@ static void nl80211_destroy_bss(struct i802_bss *bss)
} }
/** static void * wpa_driver_nl80211_drv_init(void *ctx, const char *ifname,
* wpa_driver_nl80211_init - Initialize nl80211 driver interface void *global_priv, int hostapd,
* @ctx: context to be used when calling wpa_supplicant functions, const u8 *set_addr)
* e.g., wpa_supplicant_event()
* @ifname: interface name, e.g., wlan0
* @global_priv: private driver global data from global_init()
* Returns: Pointer to private data, %NULL on failure
*/
static void * wpa_driver_nl80211_init(void *ctx, const char *ifname,
void *global_priv)
{ {
struct wpa_driver_nl80211_data *drv; struct wpa_driver_nl80211_data *drv;
struct rfkill_config *rcfg; struct rfkill_config *rcfg;
@ -3738,6 +3729,10 @@ static void * wpa_driver_nl80211_init(void *ctx, const char *ifname,
return NULL; return NULL;
drv->global = global_priv; drv->global = global_priv;
drv->ctx = ctx; drv->ctx = ctx;
drv->hostapd = !!hostapd;
drv->eapol_sock = -1;
drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int);
drv->if_indices = drv->default_if_indices;
drv->first_bss = os_zalloc(sizeof(*drv->first_bss)); drv->first_bss = os_zalloc(sizeof(*drv->first_bss));
if (!drv->first_bss) { if (!drv->first_bss) {
@ -3775,7 +3770,7 @@ static void * wpa_driver_nl80211_init(void *ctx, const char *ifname,
os_free(rcfg); os_free(rcfg);
} }
if (wpa_driver_nl80211_finish_drv_init(drv)) if (wpa_driver_nl80211_finish_drv_init(drv, set_addr))
goto failed; goto failed;
drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0); drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0);
@ -3813,6 +3808,21 @@ failed:
} }
/**
* 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
* @global_priv: private driver global data from global_init()
* Returns: Pointer to private data, %NULL on failure
*/
static void * wpa_driver_nl80211_init(void *ctx, const char *ifname,
void *global_priv)
{
return wpa_driver_nl80211_drv_init(ctx, ifname, global_priv, 0, NULL);
}
static int nl80211_register_frame(struct i802_bss *bss, static int nl80211_register_frame(struct i802_bss *bss,
struct nl_handle *nl_handle, struct nl_handle *nl_handle,
u16 type, const u8 *match, size_t match_len) u16 type, const u8 *match, size_t match_len)
@ -4160,13 +4170,12 @@ static int i802_set_iface_flags(struct i802_bss *bss, int up)
static int static int
wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv) wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv,
const u8 *set_addr)
{ {
#ifndef HOSTAPD
enum nl80211_iftype nlmode = NL80211_IFTYPE_STATION;
#endif /* HOSTAPD */
struct i802_bss *bss = drv->first_bss; struct i802_bss *bss = drv->first_bss;
int send_rfkill_event = 0; int send_rfkill_event = 0;
enum nl80211_iftype nlmode;
drv->ifindex = if_nametoindex(bss->ifname); drv->ifindex = if_nametoindex(bss->ifname);
bss->ifindex = drv->ifindex; bss->ifindex = drv->ifindex;
@ -4183,20 +4192,23 @@ wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv)
wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s", wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s",
bss->ifname, drv->phyname); bss->ifname, drv->phyname);
#ifndef HOSTAPD if (set_addr &&
if (bss->if_dynamic) (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0) ||
nlmode = nl80211_get_ifmode(bss); linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
set_addr)))
return -1;
if (drv->hostapd)
nlmode = NL80211_IFTYPE_AP;
else if (bss->if_dynamic)
nlmode = nl80211_get_ifmode(bss);
else
nlmode = NL80211_IFTYPE_STATION;
/*
* Make sure the interface starts up in station mode unless this is a
* dynamically added interface (e.g., P2P) that was already configured
* with proper iftype.
*/
if (wpa_driver_nl80211_set_mode(bss, nlmode) < 0) { if (wpa_driver_nl80211_set_mode(bss, nlmode) < 0) {
wpa_printf(MSG_ERROR, "nl80211: Could not configure driver to use managed mode"); wpa_printf(MSG_ERROR, "nl80211: Could not configure driver mode");
return -1; return -1;
} }
drv->nlmode = nlmode;
if (nlmode == NL80211_IFTYPE_P2P_DEVICE) { if (nlmode == NL80211_IFTYPE_P2P_DEVICE) {
int ret = nl80211_set_p2pdev(bss, 1); int ret = nl80211_set_p2pdev(bss, 1);
@ -4220,9 +4232,9 @@ wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv)
} }
} }
netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, if (!drv->hostapd)
1, IF_OPER_DORMANT); netlink_send_oper_ifla(drv->global->netlink, drv->ifindex,
#endif /* HOSTAPD */ 1, IF_OPER_DORMANT);
if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
bss->addr)) bss->addr))
@ -4295,7 +4307,6 @@ static void wpa_driver_nl80211_deinit(struct i802_bss *bss)
if (is_ap_interface(drv->nlmode)) if (is_ap_interface(drv->nlmode))
wpa_driver_nl80211_del_beacon(drv); wpa_driver_nl80211_del_beacon(drv);
#ifdef HOSTAPD
if (drv->eapol_sock >= 0) { if (drv->eapol_sock >= 0) {
eloop_unregister_read_sock(drv->eapol_sock); eloop_unregister_read_sock(drv->eapol_sock);
close(drv->eapol_sock); close(drv->eapol_sock);
@ -4303,7 +4314,6 @@ static void wpa_driver_nl80211_deinit(struct i802_bss *bss)
if (drv->if_indices != drv->default_if_indices) if (drv->if_indices != drv->default_if_indices)
os_free(drv->if_indices); os_free(drv->if_indices);
#endif /* HOSTAPD */
if (drv->disabled_11b_rates) if (drv->disabled_11b_rates)
nl80211_disable_11b_rates(drv, drv->ifindex, 0); nl80211_disable_11b_rates(drv, drv->ifindex, 0);
@ -9135,14 +9145,13 @@ static void *i802_init(struct hostapd_data *hapd,
int ifindex, br_ifindex; int ifindex, br_ifindex;
int br_added = 0; int br_added = 0;
bss = wpa_driver_nl80211_init(hapd, params->ifname, bss = wpa_driver_nl80211_drv_init(hapd, params->ifname,
params->global_priv); params->global_priv, 1,
params->bssid);
if (bss == NULL) if (bss == NULL)
return NULL; return NULL;
drv = bss->drv; drv = bss->drv;
drv->nlmode = NL80211_IFTYPE_AP;
drv->eapol_sock = -1;
if (linux_br_get(brname, params->ifname) == 0) { if (linux_br_get(brname, params->ifname) == 0) {
wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s", wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s",
@ -9153,8 +9162,6 @@ static void *i802_init(struct hostapd_data *hapd,
br_ifindex = 0; br_ifindex = 0;
} }
drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int);
drv->if_indices = drv->default_if_indices;
for (i = 0; i < params->num_bridge; i++) { for (i = 0; i < params->num_bridge; i++) {
if (params->bridge[i]) { if (params->bridge[i]) {
ifindex = if_nametoindex(params->bridge[i]); ifindex = if_nametoindex(params->bridge[i]);
@ -9171,28 +9178,10 @@ static void *i802_init(struct hostapd_data *hapd,
/* start listening for EAPOL on the default AP interface */ /* start listening for EAPOL on the default AP interface */
add_ifidx(drv, drv->ifindex); add_ifidx(drv, drv->ifindex);
if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0))
goto failed;
if (params->bssid) {
if (linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
params->bssid))
goto failed;
}
if (wpa_driver_nl80211_set_mode(bss, drv->nlmode)) {
wpa_printf(MSG_ERROR, "nl80211: Failed to set interface %s "
"into AP mode", bss->ifname);
goto failed;
}
if (params->num_bridge && params->bridge[0] && if (params->num_bridge && params->bridge[0] &&
i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0) i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0)
goto failed; goto failed;
if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1))
goto failed;
drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE)); drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE));
if (drv->eapol_sock < 0) { if (drv->eapol_sock < 0) {
wpa_printf(MSG_ERROR, "nl80211: socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE) failed: %s", wpa_printf(MSG_ERROR, "nl80211: socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE) failed: %s",