记录wpa_supplicant启动过程
ini脚本：
service wpa_supplicant /vendor/bin/hw/wpa_supplicant \
-ip2p0 -Dnl80211 -c/data/misc/wifi/p2p_supplicant.conf \
-I/vendor/etc/wifi/p2p_supplicant_overlay.conf -N \
-iwlan0 -Dnl80211 -c/data/misc/wifi/wpa_supplicant.conf \
-I/vendor/etc/wifi/wpa_supplicant_overlay.conf \
-O/data/misc/wifi/sockets -puse_p2p_group_interface=1 -dd \
-e/data/misc/wifi/entropy.bin -g@android:wpa_wlan0
# we will start as root and wpa_supplicant will switch to user wifi
# after setting up the capabilities required for WEXT
# user wifi
# group wifi inet keystore
class main
socket wpa_wlan0 dgram 660 wifi wifi
disabled
oneshot
external\wpa_supplicant_8\wpa_supplicant\main.c
int main(int argc, char *argv[])
{
int c, i;
struct wpa_interface *ifaces, *iface;
int iface_count, exitcode = -1;
struct wpa_params params;
struct wpa_global *global;
if (os_program_init())
return -1;
os_memset(¶ms, 0, sizeof(params));
params.wpa_debug_level = MSG_INFO; // 日志等级
iface = ifaces = os_zalloc(sizeof(struct wpa_interface));
if (ifaces == NULL)
return -1;
iface_count = 1;
wpa_supplicant_fd_workaround(1);
for (;;) {
c = getopt(argc, argv,
"b:Bc:C:D:de:f:g:G:hi:I:KLMm:No:O:p:P:qsS:TtuvW");
if (c < 0)
break;
switch (c) {
case 'b':
iface->bridge_ifname = optarg;
break;
case 'B':
params.daemonize++;
break;
case 'c': // 配置文件 /data/misc/wifi/wpa_supplicant.conf
iface->confname = optarg;
break;
case 'C':
iface->ctrl_interface = optarg;
break;
case 'D': // 驱动 nl80211
iface->driver = optarg;
break;
case 'd':
#ifdef CONFIG_NO_STDOUT_DEBUG
printf("Debugging disabled with "
"CONFIG_NO_STDOUT_DEBUG=y build time "
"option.\n");
goto out;
#else /* CONFIG_NO_STDOUT_DEBUG */
params.wpa_debug_level--;
break;
#endif /* CONFIG_NO_STDOUT_DEBUG */
case 'e': // 加密文件 /data/misc/wifi/entropy.bin
params.entropy_file = optarg;
break;
#ifdef CONFIG_DEBUG_FILE
case 'f':
params.wpa_debug_file_path = optarg;
break;
#endif /* CONFIG_DEBUG_FILE */
case 'g': // 接口 @android:wpa_wlan0
params.ctrl_interface = optarg;
break;
case 'G':
params.ctrl_interface_group = optarg;
break;
case 'h':
usage();
exitcode = 0;
goto out;
case 'i': // 接口名称 wlan0
iface->ifname = optarg;
break;
......
default:
usage();
exitcode = 0;
goto out;
}
}
exitcode = 0;
global = wpa_supplicant_init(¶ms); //
if (global == NULL) {
wpa_printf(MSG_ERROR, "Failed to initialize wpa_supplicant");
exitcode = -1;
goto out;
} else {
wpa_printf(MSG_INFO, "Successfully initialized "
"wpa_supplicant");
}
if (fst_global_init()) {
wpa_printf(MSG_ERROR, "Failed to initialize FST");
exitcode = -1;
goto out;
}
#if defined(CONFIG_FST) && defined(CONFIG_CTRL_IFACE)
if (!fst_global_add_ctrl(fst_ctrl_cli))
wpa_printf(MSG_WARNING, "Failed to add CLI FST ctrl");
#endif
for (i = 0; exitcode == 0 && i < iface_count; i++) {
struct wpa_supplicant *wpa_s;
if ((ifaces[i].confname == NULL &&
ifaces[i].ctrl_interface == NULL) ||
ifaces[i].ifname == NULL) {
if (iface_count == 1 && (params.ctrl_interface ||
#ifdef CONFIG_MATCH_IFACE
params.match_iface_count ||
#endif /* CONFIG_MATCH_IFACE */
params.dbus_ctrl_interface))
break;
usage();
exitcode = -1;
break;
}
wpa_s = wpa_supplicant_add_iface(global, &ifaces[i], NULL); // 添加接口
if (wpa_s == NULL) {
exitcode = -1;
break;
}
}
#ifdef CONFIG_MATCH_IFACE
if (exitcode == 0)
exitcode = wpa_supplicant_init_match(global);
#endif /* CONFIG_MATCH_IFACE */
if (exitcode == 0)
exitcode = wpa_supplicant_run(global); // 启动eloop，监听wpa的事件
wpa_supplicant_deinit(global);
fst_global_deinit();
out:
wpa_supplicant_fd_workaround(0);
os_free(ifaces);
#ifdef CONFIG_MATCH_IFACE
os_free(params.match_ifaces);
#endif /* CONFIG_MATCH_IFACE */
os_free(params.pid_file);
os_program_deinit();
return exitcode;
}
external\wpa_supplicant_8\wpa_supplicant\wpa_supplicant.c
struct wpa_global * wpa_supplicant_init(struct wpa_params *params)
{
struct wpa_global *global;
int ret, i;
if (params == NULL)
return NULL;
#ifdef CONFIG_DRIVER_NDIS
{
void driver_ndis_init_ops(void);
driver_ndis_init_ops();
}
#endif /* CONFIG_DRIVER_NDIS */
#ifndef CONFIG_NO_WPA_MSG
wpa_msg_register_ifname_cb(wpa_supplicant_msg_ifname_cb);
#endif /* CONFIG_NO_WPA_MSG */
// 如果没有设置debug文件，将日志写道stdout
if (params->wpa_debug_file_path)
wpa_debug_open_file(params->wpa_debug_file_path);
else
wpa_debug_setup_stdout();
if (params->wpa_debug_syslog)
wpa_debug_open_syslog();
if (params->wpa_debug_tracing) {
ret = wpa_debug_open_linux_tracing();
if (ret) {
wpa_printf(MSG_ERROR,
"Failed to enable trace logging");
return NULL;
}
}
// 注册eap方法，是一个链表，将支持的eap方法添加到链表中
ret = eap_register_methods(); // 注册eap方法
if (ret) {
wpa_printf(MSG_ERROR, "Failed to register EAP methods");
if (ret == -2)
wpa_printf(MSG_ERROR, "Two or more EAP methods used "
"the same EAP type.");
return NULL;
}
global = os_zalloc(sizeof(*global));
if (global == NULL)
return NULL;
dl_list_init(&global->p2p_srv_bonjour);
dl_list_init(&global->p2p_srv_upnp);
/// 将启动参数添加到global->params中
global->params.daemonize = params->daemonize;
global->params.wait_for_monitor = params->wait_for_monitor;
global->params.dbus_ctrl_interface = params->dbus_ctrl_interface;
if (params->pid_file)
global->params.pid_file = os_strdup(params->pid_file);
if (params->ctrl_interface)
global->params.ctrl_interface =
os_strdup(params->ctrl_interface);
if (params->ctrl_interface_group)
global->params.ctrl_interface_group =
os_strdup(params->ctrl_interface_group);
if (params->override_driver)
global->params.override_driver =
os_strdup(params->override_driver);
if (params->override_ctrl_interface)
global->params.override_ctrl_interface =
os_strdup(params->override_ctrl_interface);
#ifdef CONFIG_MATCH_IFACE
global->params.match_iface_count = params->match_iface_count;
if (params->match_iface_count) {
global->params.match_ifaces =
os_calloc(params->match_iface_count,
sizeof(struct wpa_interface));
os_memcpy(global->params.match_ifaces,
params->match_ifaces,
params->match_iface_count *
sizeof(struct wpa_interface));
}
#endif /* CONFIG_MATCH_IFACE */
#ifdef CONFIG_P2P
if (params->conf_p2p_dev)
global->params.conf_p2p_dev =
os_strdup(params->conf_p2p_dev);
#endif /* CONFIG_P2P */
wpa_debug_level = global->params.wpa_debug_level =
params->wpa_debug_level;
wpa_debug_show_keys = global->params.wpa_debug_show_keys =
params->wpa_debug_show_keys;
wpa_debug_timestamp = global->params.wpa_debug_timestamp =
params->wpa_debug_timestamp;
#ifdef CONFIG_HIDL
if (params->hidl_service_name)
global->params.hidl_service_name =
os_strdup(params->hidl_service_name);
#endif /* CONFIG_HIDL */
wpa_printf(MSG_DEBUG, "wpa_supplicant v" VERSION_STR);
if (eloop_init()) {
wpa_printf(MSG_ERROR, "Failed to initialize event loop");
wpa_supplicant_deinit(global);
return NULL;
}
// 随机数
random_init(params->entropy_file);
global->ctrl_iface = wpa_supplicant_global_ctrl_iface_init(global);
if (global->ctrl_iface == NULL) {
wpa_supplicant_deinit(global);
return NULL;
}
if (wpas_notify_supplicant_initialized(global)) {
wpa_supplicant_deinit(global);
return NULL;
}
// wpa_drivers记录了不同接口的操作方法。
for (i = 0; wpa_drivers[i]; i++)
global->drv_count++;
if (global->drv_count == 0) {
wpa_printf(MSG_ERROR, "No drivers enabled");
wpa_supplicant_deinit(global);
return NULL;
}
global->drv_priv = os_zalloc(global->drv_count * sizeof(void *));
if (global->drv_priv == NULL) {
wpa_supplicant_deinit(global);
return NULL;
}
#ifdef CONFIG_WIFI_DISPLAY
if (wifi_display_init(global) < 0) {
wpa_printf(MSG_ERROR, "Failed to initialize Wi-Fi Display");
wpa_supplicant_deinit(global);
return NULL;
}
#endif /* CONFIG_WIFI_DISPLAY */
eloop_register_timeout(WPA_SUPPLICANT_CLEANUP_INTERVAL, 0,
wpas_periodic, global, NULL);
#ifdef CONFIG_WAPI
if (wapi_asue_init()) {
wpa_printf(MSG_ERROR, "wapi: wapi_asue_init fail\n");
return NULL;
}
#endif
return global;
}
external\wpa_supplicant_8\src\drivers\drivers.c
const struct wpa_driver_ops *const wpa_drivers[] =
{
#ifdef CONFIG_DRIVER_NL80211
&wpa_driver_nl80211_ops,
#endif /* CONFIG_DRIVER_NL80211 */
#ifdef CONFIG_DRIVER_WEXT
&wpa_driver_wext_ops,
#endif /* CONFIG_DRIVER_WEXT */
#ifdef CONFIG_DRIVER_HOSTAP
&wpa_driver_hostap_ops,
#endif /* CONFIG_DRIVER_HOSTAP */
#ifdef CONFIG_DRIVER_BSD
&wpa_driver_bsd_ops,
#endif /* CONFIG_DRIVER_BSD */
#ifdef CONFIG_DRIVER_OPENBSD
&wpa_driver_openbsd_ops,
#endif /* CONFIG_DRIVER_OPENBSD */
#ifdef CONFIG_DRIVER_NDIS
&wpa_driver_ndis_ops,
#endif /* CONFIG_DRIVER_NDIS */
#ifdef CONFIG_DRIVER_WIRED
&wpa_driver_wired_ops,
#endif /* CONFIG_DRIVER_WIRED */
#ifdef CONFIG_DRIVER_MACSEC_LINUX
&wpa_driver_macsec_linux_ops,
#endif /* CONFIG_DRIVER_MACSEC_LINUX */
#ifdef CONFIG_DRIVER_MACSEC_QCA
&wpa_driver_macsec_qca_ops,
#endif /* CONFIG_DRIVER_MACSEC_QCA */
#ifdef CONFIG_DRIVER_ROBOSWITCH
&wpa_driver_roboswitch_ops,
#endif /* CONFIG_DRIVER_ROBOSWITCH */
#ifdef CONFIG_DRIVER_ATHEROS
&wpa_driver_atheros_ops,
#endif /* CONFIG_DRIVER_ATHEROS */
#ifdef CONFIG_DRIVER_NONE
&wpa_driver_none_ops,
#endif /* CONFIG_DRIVER_NONE */
NULL
};
对应驱动函数
external\wpa_supplicant_8\src\drivers\driver_nl80211.c
const struct wpa_driver_ops wpa_driver_nl80211_ops = {
.name = "nl80211",
.desc = "Linux nl80211/cfg80211",
.get_bssid = wpa_driver_nl80211_get_bssid,
.get_ssid = wpa_driver_nl80211_get_ssid,
.set_key = driver_nl80211_set_key,
.scan2 = driver_nl80211_scan2,
.sched_scan = wpa_driver_nl80211_sched_scan,
.stop_sched_scan = wpa_driver_nl80211_stop_sched_scan,
.get_scan_results2 = wpa_driver_nl80211_get_scan_results,
.abort_scan = wpa_driver_nl80211_abort_scan,
.deauthenticate = driver_nl80211_deauthenticate,
.authenticate = driver_nl80211_authenticate,
.associate = wpa_driver_nl80211_associate,
.global_init = nl80211_global_init,
.global_deinit = nl80211_global_deinit,
.init2 = wpa_driver_nl80211_init,
.deinit = driver_nl80211_deinit,
.get_capa = wpa_driver_nl80211_get_capa,
.set_operstate = wpa_driver_nl80211_set_operstate,
.set_supp_port = wpa_driver_nl80211_set_supp_port,
.set_country = wpa_driver_nl80211_set_country,
.get_country = wpa_driver_nl80211_get_country,
.set_ap = wpa_driver_nl80211_set_ap,
.set_acl = wpa_driver_nl80211_set_acl,
.if_add = wpa_driver_nl80211_if_add,
.if_remove = driver_nl80211_if_remove,
.send_mlme = driver_nl80211_send_mlme,
.get_hw_feature_data = nl80211_get_hw_feature_data,
.sta_add = wpa_driver_nl80211_sta_add,
.sta_remove = driver_nl80211_sta_remove,
.hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol,
.sta_set_flags = wpa_driver_nl80211_sta_set_flags,
.hapd_init = i802_init,
.hapd_deinit = i802_deinit,
.set_wds_sta = i802_set_wds_sta,
.get_seqnum = i802_get_seqnum,
.flush = i802_flush,
.get_inact_sec = i802_get_inact_sec,
.sta_clear_stats = i802_sta_clear_stats,
.set_rts = i802_set_rts,
.set_frag = i802_set_frag,
.set_tx_queue_params = i802_set_tx_queue_params,
.set_sta_vlan = driver_nl80211_set_sta_vlan,
.sta_deauth = i802_sta_deauth,
.sta_disassoc = i802_sta_disassoc,
.read_sta_data = driver_nl80211_read_sta_data,
.set_freq = i802_set_freq,
.send_action = driver_nl80211_send_action,
.send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait,
.remain_on_channel = wpa_driver_nl80211_remain_on_channel,
.cancel_remain_on_channel =
wpa_driver_nl80211_cancel_remain_on_channel,
.probe_req_report = driver_nl80211_probe_req_report,
.deinit_ap = wpa_driver_nl80211_deinit_ap,
.deinit_p2p_cli = wpa_driver_nl80211_deinit_p2p_cli,
.resume = wpa_driver_nl80211_resume,
.signal_monitor = nl80211_signal_monitor,
...}
struct wpa_supplicant * wpa_supplicant_add_iface(struct wpa_global *global,
struct wpa_interface *iface,
struct wpa_supplicant *parent)
{
struct wpa_supplicant *wpa_s;
struct wpa_interface t_iface;
struct wpa_ssid *ssid;
if (global == NULL || iface == NULL)
return NULL;
wpa_s = wpa_supplicant_alloc(parent);
if (wpa_s == NULL)
return NULL;
wpa_s->global = global;
t_iface = *iface;
if (global->params.override_driver) {
wpa_printf(MSG_DEBUG, "Override interface parameter: driver "
"('%s' -> '%s')",
iface->driver, global->params.override_driver);
t_iface.driver = global->params.override_driver;
}
if (global->params.override_ctrl_interface) {
wpa_printf(MSG_DEBUG, "Override interface parameter: "
"ctrl_interface ('%s' -> '%s')",
iface->ctrl_interface,
global->params.override_ctrl_interface);
t_iface.ctrl_interface =
global->params.override_ctrl_interface;
}
if (wpa_supplicant_init_iface(wpa_s, &t_iface)) {
wpa_printf(MSG_DEBUG, "Failed to add interface %s",
iface->ifname);
wpa_supplicant_deinit_iface(wpa_s, 0, 0);
return NULL;
}
/* Notify the control interfaces about new iface */
if (wpas_notify_iface_added(wpa_s)) {
wpa_supplicant_deinit_iface(wpa_s, 1, 0);
return NULL;
}
/* Notify the control interfaces about new networks for non p2p mgmt
* ifaces. */
if (iface->p2p_mgmt == 0) {
for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next)
wpas_notify_network_added(wpa_s, ssid);
}
wpa_s->next = global->ifaces;
global->ifaces = wpa_s;
wpa_dbg(wpa_s, MSG_DEBUG, "Added interface %s", wpa_s->ifname);
wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
#ifdef CONFIG_P2P
if (wpa_s->global->p2p == NULL &&
!wpa_s->global->p2p_disabled && !wpa_s->conf->p2p_disabled &&
(wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
wpas_p2p_add_p2pdev_interface(
wpa_s, wpa_s->global->params.conf_p2p_dev) < 0) {
wpa_printf(MSG_INFO,
"P2P: Failed to enable P2P Device interface");
/* Try to continue without. P2P will be disabled. */
}
#endif /* CONFIG_P2P */
return wpa_s;
}
static int wpa_supplicant_init_iface(struct wpa_supplicant *wpa_s,
struct wpa_interface *iface)
{
struct wpa_driver_capa capa;
int capa_res;
u8 dfs_domain;
wpa_printf(MSG_DEBUG, "Initializing interface '%s' conf '%s' driver "
"'%s' ctrl_interface '%s' bridge '%s'", iface->ifname,
iface->confname ? iface->confname : "N/A",
iface->driver ? iface->driver : "default",
iface->ctrl_interface ? iface->ctrl_interface : "N/A",
iface->bridge_ifname ? iface->bridge_ifname : "N/A");
if (iface->confname) {
#ifdef CONFIG_BACKEND_FILE
wpa_s->confname = os_rel2abs_path(iface->confname);
if (wpa_s->confname == NULL) {
wpa_printf(MSG_ERROR, "Failed to get absolute path "
"for configuration file '%s'.",
iface->confname);
return -1;
}
wpa_printf(MSG_DEBUG, "Configuration file '%s' -> '%s'",
iface->confname, wpa_s->confname);
#else /* CONFIG_BACKEND_FILE */
wpa_s->confname = os_strdup(iface->confname);
#endif /* CONFIG_BACKEND_FILE */
// 读取conf文件
wpa_s->conf = wpa_config_read(wpa_s->confname, NULL);
if (wpa_s->conf == NULL) {
wpa_printf(MSG_ERROR, "Failed to read or parse "
"configuration '%s'.", wpa_s->confname);
return -1;
}
// 为什么还有一个文件
wpa_s->confanother = os_rel2abs_path(iface->confanother);
wpa_config_read(wpa_s->confanother, wpa_s->conf);
}
}
external\wpa_supplicant_8\wpa_supplicant\wpa_supplicant.c
int wpa_supplicant_run(struct wpa_global *global)
{
struct wpa_supplicant *wpa_s;
if (global->params.daemonize &&
(wpa_supplicant_daemon(global->params.pid_file) ||
eloop_sock_requeue()))
return -1;
#ifdef CONFIG_MATCH_IFACE
if (wpa_supplicant_match_existing(global))
return -1;
#endif
if (global->params.wait_for_monitor) {
for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next)
if (wpa_s->ctrl_iface && !wpa_s->p2p_mgmt)
wpa_supplicant_ctrl_iface_wait(
wpa_s->ctrl_iface);
}
eloop_register_signal_terminate(wpa_supplicant_terminate, global);
eloop_register_signal_reconfig(wpa_supplicant_reconfig, global);
eloop_run();
return 0;
}
external\wpa_supplicant_8\wpa_supplicant\src\utils\eloop.c
void eloop_run(void)
{
#ifdef CONFIG_ELOOP_POLL
int num_poll_fds;
int timeout_ms = 0;
#endif /* CONFIG_ELOOP_POLL */
#ifdef CONFIG_ELOOP_SELECT
fd_set *rfds, *wfds, *efds;
struct timeval _tv;
#endif /* CONFIG_ELOOP_SELECT */
#ifdef CONFIG_ELOOP_EPOLL
int timeout_ms = -1;
#endif /* CONFIG_ELOOP_EPOLL */
#ifdef CONFIG_ELOOP_KQUEUE
struct timespec ts;
#endif /* CONFIG_ELOOP_KQUEUE */
int res;
struct os_reltime tv, now;
#ifdef CONFIG_ELOOP_SELECT
rfds = os_malloc(sizeof(*rfds));
wfds = os_malloc(sizeof(*wfds));
efds = os_malloc(sizeof(*efds));
if (rfds == NULL || wfds == NULL || efds == NULL)
goto out;
#endif /* CONFIG_ELOOP_SELECT */
while (!eloop.terminate &&
(!dl_list_empty(&eloop.timeout) || eloop.readers.count > 0 ||
eloop.writers.count > 0 || eloop.exceptions.count > 0)) {
struct eloop_timeout *timeout;
if (eloop.pending_terminate) {
/*
* This may happen in some corner cases where a signal
* is received during a blocking operation. We need to
* process the pending signals and exit if requested to
* avoid hitting the SIGALRM limit if the blocking
* operation took more than two seconds.
*/
eloop_process_pending_signals();
if (eloop.terminate)
break;
}
timeout = dl_list_first(&eloop.timeout, struct eloop_timeout,
list);
if (timeout) {
os_get_reltime(&now);
if (os_reltime_before(&now, &timeout->time))
os_reltime_sub(&timeout->time, &now, &tv);
else
tv.sec = tv.usec = 0;
#if defined(CONFIG_ELOOP_POLL) || defined(CONFIG_ELOOP_EPOLL)
timeout_ms = tv.sec * 1000 + tv.usec / 1000;
#endif /* defined(CONFIG_ELOOP_POLL) || defined(CONFIG_ELOOP_EPOLL) */
#ifdef CONFIG_ELOOP_SELECT
_tv.tv_sec = tv.sec;
_tv.tv_usec = tv.usec;
#endif /* CONFIG_ELOOP_SELECT */
#ifdef CONFIG_ELOOP_KQUEUE
ts.tv_sec = tv.sec;
ts.tv_nsec = tv.usec * 1000L;
#endif /* CONFIG_ELOOP_KQUEUE */
}
#ifdef CONFIG_ELOOP_POLL
// 将事件添加到监听队列里面
num_poll_fds = eloop_sock_table_set_fds(
&eloop.readers, &eloop.writers, &eloop.exceptions,
eloop.pollfds, eloop.pollfds_map,
eloop.max_pollfd_map);
// 监听事件变化
res = poll(eloop.pollfds, num_poll_fds,
timeout ? timeout_ms : -1);
#endif /* CONFIG_ELOOP_POLL */
#ifdef CONFIG_ELOOP_SELECT
// 将事件添加到监听队列里面
eloop_sock_table_set_fds(&eloop.readers, rfds);
eloop_sock_table_set_fds(&eloop.writers, wfds);
eloop_sock_table_set_fds(&eloop.exceptions, efds);
// 监听事件变化
res = select(eloop.max_sock + 1, rfds, wfds, efds,
timeout ? &_tv : NULL);
#endif /* CONFIG_ELOOP_SELECT */
#ifdef CONFIG_ELOOP_EPOLL
if (eloop.count == 0) {
res = 0;
} else {
res = epoll_wait(eloop.epollfd, eloop.epoll_events,
eloop.count, timeout_ms);
}
#endif /* CONFIG_ELOOP_EPOLL */
#ifdef CONFIG_ELOOP_KQUEUE
if (eloop.count == 0) {
res = 0;
} else {
res = kevent(eloop.kqueuefd, NULL, 0,
eloop.kqueue_events, eloop.kqueue_nevents,
timeout ? &ts : NULL);
}
#endif /* CONFIG_ELOOP_KQUEUE */
if (res < 0 && errno != EINTR && errno != 0) {
wpa_printf(MSG_ERROR, "eloop: %s: %s",
#ifdef CONFIG_ELOOP_POLL
"poll"
#endif /* CONFIG_ELOOP_POLL */
#ifdef CONFIG_ELOOP_SELECT
"select"
#endif /* CONFIG_ELOOP_SELECT */
#ifdef CONFIG_ELOOP_EPOLL
"epoll"
#endif /* CONFIG_ELOOP_EPOLL */
#ifdef CONFIG_ELOOP_KQUEUE
"kqueue"
#endif /* CONFIG_ELOOP_EKQUEUE */
, strerror(errno));
goto out;
}
eloop.readers.changed = 0;
eloop.writers.changed = 0;
eloop.exceptions.changed = 0;
eloop_process_pending_signals();
......
}
eloop.terminate = 0;
out:
#ifdef CONFIG_ELOOP_SELECT
os_free(rfds);
os_free(wfds);
os_free(efds);
#endif /* CONFIG_ELOOP_SELECT */
return;
}