struct fst_session * fst_session_create(struct fst_group *g)
{
struct fst_session *s;
u32 id;
WPA_ASSERT(!is_zero_ether_addr(own_addr));
id = fst_find_free_session_id();
if (id == FST_INVALID_SESSION_ID) {
fst_printf(MSG_ERROR, "Cannot assign new session ID");
return NULL;
}
s = os_zalloc(sizeof(*s));
if (!s) {
fst_printf(MSG_ERROR, "Cannot allocate new session object");
return NULL;
}
s->id = id;
s->group = g;
s->state = FST_SESSION_STATE_INITIAL;
s->data.llt_ms = FST_LLT_MS_DEFAULT;
fst_printf(MSG_INFO, "Session %u created", s->id);
dl_list_add_tail(&global_sessions_list, &s->global_sessions_lentry);
foreach_fst_ctrl_call(on_session_added, s);
return s;
}
void fst_session_delete(struct fst_session *s)
{
fst_printf(MSG_INFO, "Session %u deleted", s->id);
dl_list_del(&s->global_sessions_lentry);
foreach_fst_ctrl_call(on_session_removed, s);
os_free(s);
}
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);
}
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;
}
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);
}
static inline void fst_session_notify_ctrl(struct fst_session *s,
enum fst_event_type event_type,
union fst_event_extra *extra)
{
foreach_fst_ctrl_call(on_event, event_type, NULL, s, extra);
}