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/*
* FST module implementation
* Copyright (c) 2014, Qualcomm Atheros, Inc.
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
*/
#include "utils/includes.h"
#include "utils/common.h"
#include "utils/eloop.h"
#include "fst/fst.h"
#include "fst/fst_internal.h"
#include "fst/fst_defs.h"
#include "fst/fst_ctrl_iface.h"
struct dl_list fst_global_ctrls_list;
static void fst_ctrl_iface_notify_peer_state_change(struct fst_iface *iface,
Boolean connected,
const u8 *peer_addr)
{
union fst_event_extra extra;
extra.peer_state.connected = connected;
os_strlcpy(extra.peer_state.ifname, fst_iface_get_name(iface),
sizeof(extra.peer_state.ifname));
os_memcpy(extra.peer_state.addr, peer_addr, ETH_ALEN);
foreach_fst_ctrl_call(on_event, EVENT_PEER_STATE_CHANGED,
iface, NULL, &extra);
}
struct fst_iface * fst_attach(const char *ifname, const u8 *own_addr,
const struct fst_wpa_obj *iface_obj,
const struct fst_iface_cfg *cfg)
{
struct fst_group *g;
struct fst_group *group = NULL;
struct fst_iface *iface = NULL;
Boolean new_group = FALSE;
WPA_ASSERT(ifname != NULL);
WPA_ASSERT(iface_obj != NULL);
WPA_ASSERT(cfg != NULL);
foreach_fst_group(g) {
if (os_strcmp(cfg->group_id, fst_group_get_id(g)) == 0) {
group = g;
break;
}
}
if (!group) {
group = fst_group_create(cfg->group_id);
if (!group) {
fst_printf(MSG_ERROR, "%s: FST group cannot be created",
cfg->group_id);
return NULL;
}
new_group = TRUE;
}
iface = fst_iface_create(group, ifname, own_addr, iface_obj, cfg);
if (!iface) {
fst_printf_group(group, MSG_ERROR, "cannot create iface for %s",
ifname);
if (new_group)
fst_group_delete(group);
return NULL;
}
fst_group_attach_iface(group, iface);
fst_group_update_ie(group);
foreach_fst_ctrl_call(on_iface_added, iface);
fst_printf_iface(iface, MSG_DEBUG,
"iface attached to group %s (prio=%d, llt=%d)",
cfg->group_id, cfg->priority, cfg->llt);
return iface;
}
void fst_detach(struct fst_iface *iface)
{
struct fst_group *group = fst_iface_get_group(iface);
fst_printf_iface(iface, MSG_DEBUG, "iface detached from group %s",
fst_group_get_id(group));
fst_session_global_on_iface_detached(iface);
foreach_fst_ctrl_call(on_iface_removed, iface);
fst_group_detach_iface(group, iface);
fst_iface_delete(iface);
fst_group_update_ie(group);
fst_group_delete_if_empty(group);
}
int fst_global_init(void)
{
dl_list_init(&fst_global_groups_list);
dl_list_init(&fst_global_ctrls_list);
fst_session_global_init();
return 0;
}
void fst_global_deinit(void)
{
struct fst_group *group;
struct fst_ctrl_handle *h;
fst_session_global_deinit();
while ((group = fst_first_group()) != NULL)
fst_group_delete(group);
while ((h = dl_list_first(&fst_global_ctrls_list,
struct fst_ctrl_handle,
global_ctrls_lentry)))
fst_global_del_ctrl(h);
}
struct fst_ctrl_handle * fst_global_add_ctrl(const struct fst_ctrl *ctrl)
{
struct fst_ctrl_handle *h;
if (!ctrl)
return NULL;
h = os_zalloc(sizeof(*h));
if (!h)
return NULL;
if (ctrl->init && ctrl->init()) {
os_free(h);
return NULL;
}
h->ctrl = *ctrl;
dl_list_add_tail(&fst_global_ctrls_list, &h->global_ctrls_lentry);
return h;
}
void fst_global_del_ctrl(struct fst_ctrl_handle *h)
{
dl_list_del(&h->global_ctrls_lentry);
if (h->ctrl.deinit)
h->ctrl.deinit();
os_free(h);
}
void fst_rx_action(struct fst_iface *iface, const struct ieee80211_mgmt *mgmt,
size_t len)
{
if (fst_iface_is_connected(iface, mgmt->sa))
fst_session_on_action_rx(iface, mgmt, len);
else
wpa_printf(MSG_DEBUG,
"FST: Ignore FST Action frame - no FST connection with "
MACSTR, MAC2STR(mgmt->sa));
}
void fst_notify_peer_connected(struct fst_iface *iface, const u8 *addr)
{
if (is_zero_ether_addr(addr))
return;
#ifndef HOSTAPD
fst_group_update_ie(fst_iface_get_group(iface));
#endif /* HOSTAPD */
fst_printf_iface(iface, MSG_DEBUG, MACSTR " became connected",
MAC2STR(addr));
fst_ctrl_iface_notify_peer_state_change(iface, TRUE, addr);
}
void fst_notify_peer_disconnected(struct fst_iface *iface, const u8 *addr)
{
if (is_zero_ether_addr(addr))
return;
#ifndef HOSTAPD
fst_group_update_ie(fst_iface_get_group(iface));
#endif /* HOSTAPD */
fst_printf_iface(iface, MSG_DEBUG, MACSTR " became disconnected",
MAC2STR(addr));
fst_ctrl_iface_notify_peer_state_change(iface, FALSE, addr);
}
Boolean fst_are_ifaces_aggregated(struct fst_iface *iface1,
struct fst_iface *iface2)
{
return fst_iface_get_group(iface1) == fst_iface_get_group(iface2);
}
enum mb_band_id fst_hw_mode_to_band(enum hostapd_hw_mode mode)
{
switch (mode) {
case HOSTAPD_MODE_IEEE80211B:
case HOSTAPD_MODE_IEEE80211G:
return MB_BAND_ID_WIFI_2_4GHZ;
case HOSTAPD_MODE_IEEE80211A:
return MB_BAND_ID_WIFI_5GHZ;
case HOSTAPD_MODE_IEEE80211AD:
return MB_BAND_ID_WIFI_60GHZ;
default:
WPA_ASSERT(0);
return MB_BAND_ID_WIFI_2_4GHZ;
}
}
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