int __system_property_get(const char *name, char *value)
{
const prop_info *pi = __system_property_find(name);
if (pi != 0) {
return __system_property_read(pi, 0, value);
} else {
value[0] = 0;
return 0;
}
}
static void refresh_cache_property(struct cache_property* cache, const char* key)
{
if (!cache->cache.pinfo) {
cache->cache.pinfo = __system_property_find(key);
if (!cache->cache.pinfo) {
return;
}
}
cache->cache.serial = __system_property_serial(cache->cache.pinfo);
__system_property_read(cache->cache.pinfo, 0, cache->property);
}
static void print_sys_prop(const struct prop_info *pi, void *cookies)
{
char key[PROP_NAME_MAX];
char name[PROP_VALUE_MAX];
unsigned int serial;
int valuelen;
serial = __system_property_serial(pi);
valuelen = __system_property_read(pi, key, name);
if (valuelen < 1 || valuelen > PROP_VALUE_MAX)
return;
klog_write(6, "<6> [+%3u]%-32s = %s\n",
(serial & 0xffffff) >> 1, key, name);
}
int property_list(void (*propfn)(const char *key, const char *value, void *cookie),
void *cookie)
{
char name[PROP_NAME_MAX];
char value[PROP_VALUE_MAX];
const prop_info *pi;
unsigned n;
for(n = 0; (pi = __system_property_find_nth(n)); n++) {
__system_property_read(pi, name, value);
propfn(name, value, cookie);
}
return 0;
}
int wifi_stop_supplicant()
{
char supp_status[PROPERTY_VALUE_MAX] = {'\0'};
int count = 50; /* wait at most 5 seconds for completion */
#ifdef HAVE_LIBC_SYSTEM_PROPERTIES
char supp_rdy_status[PROPERTY_VALUE_MAX] = "";
const prop_info *rdy_pi = NULL;
int rdy_loop_count = 0;
#endif
/* Check whether supplicant already stopped */
if (property_get(supplicant_prop_name, supp_status, NULL)
&& strcmp(supp_status, "stopped") == 0) {
return 0;
}
#ifdef HAVE_LIBC_SYSTEM_PROPERTIES
/* Wait for the supplicant to deinitialize and set the
property (SUPP_RDY_PROP_NAME) to 0 before killing
the supplicant */
for (rdy_loop_count = 0; rdy_loop_count < 15000/RDY_WAIT_MS;
rdy_loop_count ++) {
if (rdy_pi == NULL) {
rdy_pi = __system_property_find(SUPP_RDY_PROP_NAME);
} else {
__system_property_read(rdy_pi, NULL, supp_rdy_status);
if (strcmp(supp_rdy_status, "0") == 0)
{
break;
}
}
usleep (RDY_WAIT_MS * 1000);
}
#endif
property_set("ctl.stop", supplicant_name);
sched_yield();
while (count-- > 0) {
if (property_get(supplicant_prop_name, supp_status, NULL)) {
if (strcmp(supp_status, "stopped") == 0)
return 0;
}
usleep(100000);
}
return -1;
}
static void refresh_cache(struct cache *cache, const char *key)
{
uint32_t serial;
char buf[PROP_VALUE_MAX];
if (!cache->pinfo) {
cache->pinfo = __system_property_find(key);
if (!cache->pinfo) {
return;
}
}
serial = __system_property_serial(cache->pinfo);
if (serial == cache->serial) {
return;
}
cache->serial = serial;
__system_property_read(cache->pinfo, 0, buf);
cache->c = buf[0];
}
static void refresh_cache(struct cache_char* cache, const char* key)
{
char buf[PROP_VALUE_MAX];
if (!cache->cache.pinfo) {
cache->cache.pinfo = __system_property_find(key);
if (!cache->cache.pinfo) {
return;
}
}
cache->cache.serial = __system_property_serial(cache->cache.pinfo);
__system_property_read(cache->cache.pinfo, 0, buf);
switch(buf[0]) {
case 't': case 'T':
cache->c = strcasecmp(buf + 1, "rue") ? buf[0] : BOOLEAN_TRUE;
break;
case 'f': case 'F':
cache->c = strcasecmp(buf + 1, "alse") ? buf[0] : BOOLEAN_FALSE;
break;
default:
cache->c = buf[0];
}
}
static void hierarchical_test_callback(const prop_info *pi, void *cookie) {
bool (*ok)[8][8] = static_cast<bool (*)[8][8]>(cookie);
char name[PROP_NAME_MAX];
char value[PROP_VALUE_MAX];
__system_property_read(pi, name, value);
int name_i, name_j, name_k;
int value_i, value_j, value_k;
ASSERT_EQ(3, sscanf(name, "property_%d.%d.%d", &name_i, &name_j, &name_k));
ASSERT_EQ(3, sscanf(value, "value_%d.%d.%d", &value_i, &value_j, &value_k));
ASSERT_EQ(name_i, value_i);
ASSERT_GE(name_i, 0);
ASSERT_LT(name_i, 8);
ASSERT_EQ(name_j, value_j);
ASSERT_GE(name_j, 0);
ASSERT_LT(name_j, 8);
ASSERT_EQ(name_k, value_k);
ASSERT_GE(name_k, 0);
ASSERT_LT(name_k, 8);
ok[name_i][name_j][name_k] = true;
}
int
getprop_main(const struct cmd_getprop_info* info)
{
const char* format = info->getprop.format;
const char* format_not_found = info->getprop.format_not_found;
bool null = info->getprop.null;
if (null && format == NULL && format_not_found == NULL)
usage_error("must supply --format or "
"--format-not-found or both if using -0");
find_symbol_in_libc("__system_property_foreach",
&property_foreach);
if (property_foreach == NULL)
property_foreach = compat_property_foreach;
dbg("using %s for property enumeration",
property_foreach == compat_property_foreach
? "compat_property_foreach"
: "__system_property_foreach");
int exit_status = 0;
struct json_writer* writer = NULL;
if (format == NULL && format_not_found == NULL) {
writer = json_writer_create(xstdout);
json_begin_object(writer);
}
const char** properties = ARGV_CONCAT(info->properties);
bool first = true;
char sep = null ? '\0' : '\n';
if (*properties == NULL) {
struct property_vector* pv = find_all_properties();
char prev_name[PROP_NAME_MAX];
for (size_t i = 0; i < pv->size; ++i) {
char name[PROP_NAME_MAX];
char value[PROP_VALUE_MAX];
(void) __system_property_read(pv->props[i], name, value);
if (i > 0 && strcmp(name, prev_name) == 0)
continue;
if (writer != NULL) {
json_begin_field(writer, name);
json_emit_string(writer, value);
} else {
output_property(&first, sep, format, name, value);
}
strcpy(prev_name, name);
}
} else {
size_t nproperties = argv_count(properties);
qsort(properties,
nproperties,
sizeof (properties[0]),
property_argv_compare);
const char* property;
const char* prev_property = NULL;
while ((property = *properties++)) {
if (prev_property != NULL && !strcmp(prev_property, property))
continue;
if (writer != NULL)
json_begin_field(writer, property);
const prop_info* pi = __system_property_find(property);
if (pi) {
char value[PROP_VALUE_MAX];
__system_property_read(pi, NULL, value);
if (writer != NULL)
json_emit_string(writer, value);
else if (format != NULL)
output_property(&first, sep, format, property, value);
} else {
if (writer != NULL)
json_emit_null(writer);
else if (format_not_found != NULL)
output_property(&first, sep,
format_not_found,
property, NULL);
exit_status = 4;
}
prev_property = property;
}
}
if (writer == NULL && !first && !null)
xputc(sep, xstdout);
if (writer != NULL)
json_end_object(writer);
xflush(xstdout);
return exit_status;
}
int wifi_start_supplicant(int p2p_supported)
{
char supp_status[PROPERTY_VALUE_MAX] = {'\0'};
int count = 200; /* wait at most 20 seconds for completion */
#ifdef HAVE_LIBC_SYSTEM_PROPERTIES
const prop_info *pi;
unsigned serial = 0, i;
#endif
if (p2p_supported) {
strcpy(supplicant_name, P2P_SUPPLICANT_NAME);
strcpy(supplicant_prop_name, P2P_PROP_NAME);
/* Ensure p2p config file is created */
if (ensure_config_file_exists(P2P_CONFIG_FILE) < 0) {
ALOGE("Failed to create a p2p config file");
return -1;
}
} else {
strcpy(supplicant_name, SUPPLICANT_NAME);
strcpy(supplicant_prop_name, SUPP_PROP_NAME);
}
/* Check whether already running */
if (property_get(supplicant_prop_name, supp_status, NULL)
&& strcmp(supp_status, "running") == 0) {
return 0;
}
/* Before starting the daemon, make sure its config file exists */
if (ensure_config_file_exists(SUPP_CONFIG_FILE) < 0) {
ALOGE("Wi-Fi will not be enabled");
return -1;
}
if (ensure_entropy_file_exists() < 0) {
ALOGE("Wi-Fi entropy file was not created");
}
/* Clear out any stale socket files that might be left over. */
wpa_ctrl_cleanup();
/* Reset sockets used for exiting from hung state */
exit_sockets[0] = exit_sockets[1] = -1;
#ifdef HAVE_LIBC_SYSTEM_PROPERTIES
/*
* Get a reference to the status property, so we can distinguish
* the case where it goes stopped => running => stopped (i.e.,
* it start up, but fails right away) from the case in which
* it starts in the stopped state and never manages to start
* running at all.
*/
pi = __system_property_find(supplicant_prop_name);
if (pi != NULL) {
serial = __system_property_serial(pi);
}
#endif
property_get("wifi.interface", primary_iface, WIFI_TEST_INTERFACE);
property_set("ctl.start", supplicant_name);
sched_yield();
while (count-- > 0) {
#ifdef HAVE_LIBC_SYSTEM_PROPERTIES
if (pi == NULL) {
pi = __system_property_find(supplicant_prop_name);
}
if (pi != NULL) {
/*
* property serial updated means that init process is scheduled
* after we sched_yield, further property status checking is based on this */
if (__system_property_serial(pi) != serial) {
__system_property_read(pi, NULL, supp_status);
if (strcmp(supp_status, "running") == 0) {
return 0;
} else if (strcmp(supp_status, "stopped") == 0) {
return -1;
}
}
}
#else
if (property_get(supplicant_prop_name, supp_status, NULL)) {
if (strcmp(supp_status, "running") == 0)
return 0;
}
#endif
usleep(100000);
}
return -1;
}
int wifi_start_supplicant_common(const char *config_file)
{
char daemon_cmd[PROPERTY_VALUE_MAX];
char supp_status[PROPERTY_VALUE_MAX] = {'\0'};
int count = 200; /* wait at most 20 seconds for completion */
#ifdef HAVE_LIBC_SYSTEM_PROPERTIES
const prop_info *pi;
unsigned serial = 0;
#endif
/* Check whether already running */
if (property_get(SUPP_PROP_NAME, supp_status, NULL)
&& strcmp(supp_status, "running") == 0) {
return 0;
}
/* Before starting the daemon, make sure its config file exists */
if (ensure_config_file_exists(config_file) < 0) {
LOGE("Wi-Fi will not be enabled");
return -1;
}
if (ensure_entropy_file_exists() < 0) {
LOGE("Wi-Fi entropy file was not created");
}
/* Clear out any stale socket files that might be left over. */
wifi_wpa_ctrl_cleanup();
#ifdef HAVE_LIBC_SYSTEM_PROPERTIES
/*
* Get a reference to the status property, so we can distinguish
* the case where it goes stopped => running => stopped (i.e.,
* it start up, but fails right away) from the case in which
* it starts in the stopped state and never manages to start
* running at all.
*/
pi = __system_property_find(SUPP_PROP_NAME);
if (pi != NULL) {
serial = pi->serial;
}
#endif
property_get("wifi.interface", iface, WIFI_TEST_INTERFACE);
snprintf(daemon_cmd, PROPERTY_VALUE_MAX, "%s:-i%s -c%s", SUPPLICANT_NAME, iface, config_file);
property_set("ctl.start", daemon_cmd);
sched_yield();
while (count-- > 0) {
#ifdef HAVE_LIBC_SYSTEM_PROPERTIES
if (pi == NULL) {
pi = __system_property_find(SUPP_PROP_NAME);
}
if (pi != NULL) {
__system_property_read(pi, NULL, supp_status);
if (strcmp(supp_status, "running") == 0) {
return 0;
} else if (pi->serial != serial &&
strcmp(supp_status, "stopped") == 0) {
return -1;
}
}
#else
if (property_get(SUPP_PROP_NAME, supp_status, NULL)) {
if (strcmp(supp_status, "running") == 0)
return 0;
}
#endif
usleep(100000);
}
return -1;
}
int start_supplicant(const struct _SUPPLICANT_PARA_T * prTar, const char *pcIface)
{
char daemon_cmd[PROPERTY_VALUE_MAX];
char supp_status[PROPERTY_VALUE_MAX] = {'\0'};
int count = 200; /* wait at most 20 seconds for completion */
#ifdef HAVE_LIBC_SYSTEM_PROPERTIES
const prop_info *pi;
unsigned serial = 0;
#endif
/* Check whether already running */
if (property_get(prTar->acSuppPropName, supp_status, NULL)
&& strcmp(supp_status, "running") == 0) {
return 0;
}
/* Before starting the daemon, make sure its config file exists */
if (ensure_config_file_exists(prTar->acSuppConfigFile, prTar->acSuppConfigTemplate) < 0) {
LOGE("[%s] %s will not be enabled", pcIface, prTar->acSuppName);
return -1;
}
/*Set interface UP (ifconfig "iface" up)*/
if(set_iface(pcIface, 1) < 0 ) {
/*If interface up failed, skip the following actions*/
return -1;
}
/* Clear out any stale socket files that might be left over. */
LOGD("[%s] clear out stale sockets with prefix \"%s\" in %s", pcIface, prTar->acSuppCtrlPrefix, CONFIG_CTRL_IFACE_CLIENT_DIR);
ctrl_cleanup(prTar->acSuppCtrlPrefix);
LOGI("[%s] start %s", pcIface, prTar->acSuppName);
#ifdef HAVE_LIBC_SYSTEM_PROPERTIES
/*
* Get a reference to the status property, so we can distinguish
* the case where it goes stopped => running => stopped (i.e.,
* it start up, but fails right away) from the case in which
* it starts in the stopped state and never manages to start
* running at all.
*/
pi = __system_property_find(prTar->acSuppPropName);
if (pi != NULL) {
serial = pi->serial;
}
#endif
property_get(prTar->acIfPropName, (char *)pcIface, prTar->acIfDefName);
snprintf(daemon_cmd, PROPERTY_VALUE_MAX, prTar->acSuppDeamonCmd, prTar->acSuppName, pcIface, prTar->acSuppConfigFile);
property_set("ctl.start", daemon_cmd);
LOGD("[%s] supplicant start command: \"%s\"", pcIface, daemon_cmd);
//property_set("ctl.start", prTar->acSuppName);
sched_yield();
while (count-- > 0) {
#ifdef HAVE_LIBC_SYSTEM_PROPERTIES
if (pi == NULL) {
pi = __system_property_find(prTar->acSuppPropName);
}
if (pi != NULL) {
__system_property_read(pi, NULL, supp_status);
if (strcmp(supp_status, "running") == 0) {
return 0;
} else if (pi->serial != serial &&
strcmp(supp_status, "stopped") == 0) {
return -1;
}
}
#else
if (property_get(prTar->acSuppPropName, supp_status, NULL)) {
if (strcmp(supp_status, "running") == 0)
return 0;
}
#endif
usleep(100000);
}
return -1;
}
int wifi_start_supplicant()
{
char supp_status[PROPERTY_VALUE_MAX] = {'\0'};
int count = 200; /* wait at most 20 seconds for completion */
#ifdef HAVE_LIBC_SYSTEM_PROPERTIES
const prop_info *pi;
unsigned serial = 0;
#endif
/* Check whether already running */
if (property_get(SUPP_PROP_NAME, supp_status, NULL)
&& strcmp(supp_status, "running") == 0) {
return 0;
}
/* Before starting the daemon, make sure its config file exists */
if (ensure_config_file_exists() < 0) {
LOGE("Wi-Fi will not be enabled");
return -1;
}
/* Clear out any stale socket files that might be left over. */
wpa_ctrl_cleanup();
#ifdef HAVE_LIBC_SYSTEM_PROPERTIES
/*
* Get a reference to the status property, so we can distinguish
* the case where it goes stopped => running => stopped (i.e.,
* it start up, but fails right away) from the case in which
* it starts in the stopped state and never manages to start
* running at all.
*/
pi = __system_property_find(SUPP_PROP_NAME);
if (pi != NULL) {
serial = pi->serial;
}
#endif
/* The ar6k driver needs the interface up in order to scan! */
if (!strncmp(DRIVER_MODULE_NAME, "ar6000", 6)) {
ifc_init();
ifc_up("wlan0");
sleep(1);
}
property_set("ctl.start", SUPPLICANT_NAME);
sched_yield();
while (count-- > 0) {
#ifdef HAVE_LIBC_SYSTEM_PROPERTIES
if (pi == NULL) {
pi = __system_property_find(SUPP_PROP_NAME);
}
if (pi != NULL) {
__system_property_read(pi, NULL, supp_status);
if (strcmp(supp_status, "running") == 0) {
return 0;
} else if (pi->serial != serial &&
strcmp(supp_status, "stopped") == 0) {
return -1;
}
}
#else
if (property_get(SUPP_PROP_NAME, supp_status, NULL)) {
if (strcmp(supp_status, "running") == 0)
return 0;
}
#endif
usleep(100000);
}
return -1;
}
