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NetworkManager/src/nm-cloud-setup/main.c
Thomas Haller e57b3c8072
cloud-setup: log a warning when no provider is detected 
When using nm-cloud-setup (and enabling any providers), then we expect
to also detect a provider. Otherwise, the user is running in an
environment where none of the provider exists (in which case they should
disable nm-cloud-setup) or there is an unexpected failure. In either
case, that's worth a warning message.

https://bugzilla.redhat.com/show_bug.cgi?id=2214880

https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1659
2023-06-14 16:24:21 +02:00

824 lines
29 KiB
C
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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include "libnm-client-aux-extern/nm-default-client.h"
#include "libnm-client-aux-extern/nm-libnm-aux.h"
#include <linux/rtnetlink.h>
#include "nm-cloud-setup-utils.h"
#include "nmcs-provider-ec2.h"
#include "nmcs-provider-gcp.h"
#include "nmcs-provider-azure.h"
#include "nmcs-provider-aliyun.h"
#include "libnm-core-aux-intern/nm-libnm-core-utils.h"
/*****************************************************************************/
typedef struct {
GCancellable *cancellable;
gboolean enabled;
gboolean signal_received;
} SigTermData;
typedef struct {
SigTermData *sigterm_data;
GMainLoop *main_loop;
GCancellable *cancellable;
NMCSProvider *provider_result;
guint detect_count;
gboolean any_provider_enabled;
} ProviderDetectData;
static void
_provider_detect_cb(GObject *source, GAsyncResult *result, gpointer user_data)
{
gs_unref_object NMCSProvider *provider = NMCS_PROVIDER(source);
gs_free_error GError *error = NULL;
ProviderDetectData *dd = user_data;
gboolean success;
nm_assert(dd->detect_count > 0);
dd->detect_count--;
success = nmcs_provider_detect_finish(provider, result, &error);
nm_assert(success != (!!error));
if (nm_utils_error_is_cancelled(error)) {
_LOGD("provider %s detection cancelled", nmcs_provider_get_name(provider));
goto out;
}
if (error) {
if (nm_g_error_matches(error, NM_UTILS_ERROR, NM_UTILS_ERROR_NOT_READY)) {
/* This error tells us, that the provider was not enabled in configuration. */
} else
dd->any_provider_enabled = TRUE;
_LOGI("provider %s not detected: %s", nmcs_provider_get_name(provider), error->message);
goto out;
}
_LOGI("provider %s detected", nmcs_provider_get_name(provider));
dd->provider_result = g_steal_pointer(&provider);
g_cancellable_cancel(dd->cancellable);
out:
if (dd->detect_count == 0) {
if (!dd->provider_result) {
NMLogLevel level = LOGL_INFO;
if (dd->any_provider_enabled && !dd->sigterm_data->signal_received)
level = LOGL_WARN;
_NMLOG(level, "no provider detected");
}
g_main_loop_quit(dd->main_loop);
}
}
static void
_provider_detect_sigterm_cb(GCancellable *source, gpointer user_data)
{
ProviderDetectData *dd = user_data;
g_cancellable_cancel(dd->cancellable);
g_clear_object(&dd->provider_result);
}
static NMCSProvider *
_provider_detect(SigTermData *sigterm_data)
{
nm_auto_unref_gmainloop GMainLoop *main_loop = g_main_loop_new(NULL, FALSE);
gs_unref_object GCancellable *cancellable = g_cancellable_new();
gs_unref_object NMHttpClient *http_client = NULL;
ProviderDetectData dd = {
.sigterm_data = sigterm_data,
.cancellable = cancellable,
.main_loop = main_loop,
.detect_count = 0,
.provider_result = NULL,
.any_provider_enabled = FALSE,
};
const GType gtypes[] = {
NMCS_TYPE_PROVIDER_EC2,
NMCS_TYPE_PROVIDER_GCP,
NMCS_TYPE_PROVIDER_AZURE,
NMCS_TYPE_PROVIDER_ALIYUN,
};
int i;
gulong cancellable_signal_id;
cancellable_signal_id = g_cancellable_connect(sigterm_data->cancellable,
G_CALLBACK(_provider_detect_sigterm_cb),
&dd,
NULL);
if (!cancellable_signal_id)
goto out;
http_client = nmcs_wait_for_objects_register(nm_http_client_new());
for (i = 0; i < G_N_ELEMENTS(gtypes); i++) {
NMCSProvider *provider;
provider = g_object_new(gtypes[i], NMCS_PROVIDER_HTTP_CLIENT, http_client, NULL);
nmcs_wait_for_objects_register(provider);
_LOGD("start detecting %s provider...", nmcs_provider_get_name(provider));
dd.detect_count++;
nmcs_provider_detect(provider, cancellable, _provider_detect_cb, &dd);
}
if (dd.detect_count > 0)
g_main_loop_run(main_loop);
out:
nm_clear_g_signal_handler(sigterm_data->cancellable, &cancellable_signal_id);
return dd.provider_result;
}
/*****************************************************************************/
static NMUtilsNamedValue *
_map_interfaces_parse(void)
{
gs_free const char **split = NULL;
NMUtilsNamedValue *map_interfaces;
const char *env_var;
gsize i;
gsize j;
gsize alloc_len;
env_var = g_getenv(NMCS_ENV_NM_CLOUD_SETUP_MAP_INTERFACES);
if (nm_str_is_empty(env_var))
return NULL;
split = nm_strsplit_set_full(env_var, ";", NM_STRSPLIT_SET_FLAGS_STRSTRIP);
alloc_len = NM_PTRARRAY_LEN(split) + 1u;
map_interfaces = g_new(NMUtilsNamedValue, alloc_len);
_LOGD("test: map interfaces via NM_CLOUD_SETUP_MAP_INTERFACES=\"%s\"", env_var);
for (i = 0, j = 0; split && split[i]; i++) {
NMUtilsNamedValue *m;
const char *str = split[i];
char *hwaddr;
const char *s;
s = strchr(str, '=');
if (!s || str == s)
continue;
hwaddr = nmcs_utils_hwaddr_normalize(&s[1], -1);
if (!hwaddr)
continue;
nm_assert(j < alloc_len);
m = &map_interfaces[j++];
*m = (NMUtilsNamedValue){
.name = g_strndup(str, s - str),
.value_str = hwaddr,
};
_LOGD("test: map \"%s\" -> %s", m->name, m->value_str);
}
nm_assert(j < alloc_len);
map_interfaces[j++] = (NMUtilsNamedValue){
.name = NULL,
.value_str = NULL,
};
return g_steal_pointer(&map_interfaces);
}
static const char *
_device_get_hwaddr(NMDeviceEthernet *device)
{
static const NMUtilsNamedValue *gl_map_interfaces_map = NULL;
static gsize gl_initialized = 0;
const NMUtilsNamedValue *map = NULL;
nm_assert(NM_IS_DEVICE_ETHERNET(device));
/* Network interfaces in cloud environments are identified by their permanent
* MAC address.
*
* For testing, we can set NMCS_ENV_NM_CLOUD_SETUP_MAP_INTERFACES
* to a ';' separate list of "$INTERFACE=$HWADDR", which means that we
* pretend that device with ip-interface "$INTERFACE" has the specified permanent
* MAC address. */
if (g_once_init_enter(&gl_initialized)) {
gl_map_interfaces_map = _map_interfaces_parse();
g_once_init_leave(&gl_initialized, 1);
}
map = gl_map_interfaces_map;
if (G_UNLIKELY(map)) {
const char *const iface = nm_device_get_iface(NM_DEVICE(device));
/* For testing, the device<->hwaddr is remapped and the actual permanent
* MAC address of the device ignored. This mapping is configured via
* NMCS_ENV_NM_CLOUD_SETUP_MAP_INTERFACES environment variable. */
if (!iface)
return NULL;
for (; map->name; map++) {
if (nm_streq(map->name, iface))
return map->value_str;
}
return NULL;
}
return nm_device_ethernet_get_permanent_hw_address(device);
}
static char **
_nmc_get_hwaddrs(NMClient *nmc)
{
gs_unref_ptrarray GPtrArray *hwaddrs = NULL;
const GPtrArray *devices;
char **hwaddrs_v;
gs_free char *str = NULL;
guint i;
devices = nm_client_get_devices(nmc);
for (i = 0; i < devices->len; i++) {
NMDevice *device = devices->pdata[i];
const char *hwaddr;
char *s;
if (!NM_IS_DEVICE_ETHERNET(device))
continue;
if (nm_device_get_state(device) < NM_DEVICE_STATE_UNAVAILABLE)
continue;
hwaddr = _device_get_hwaddr(NM_DEVICE_ETHERNET(device));
if (!hwaddr)
continue;
s = nmcs_utils_hwaddr_normalize(hwaddr, -1);
if (!s)
continue;
if (!hwaddrs)
hwaddrs = g_ptr_array_new_with_free_func(g_free);
g_ptr_array_add(hwaddrs, s);
}
if (!hwaddrs) {
_LOGD("found interfaces: none");
return NULL;
}
g_ptr_array_add(hwaddrs, NULL);
hwaddrs_v = (char **) g_ptr_array_free(g_steal_pointer(&hwaddrs), FALSE);
_LOGD("found interfaces: %s", (str = g_strjoinv(", ", hwaddrs_v)));
return hwaddrs_v;
}
static NMDevice *
_nmc_get_device_by_hwaddr(NMClient *nmc, const char *hwaddr)
{
const GPtrArray *devices;
guint i;
devices = nm_client_get_devices(nmc);
for (i = 0; i < devices->len; i++) {
NMDevice *device = devices->pdata[i];
const char *hwaddr_dev;
gs_free char *s = NULL;
if (!NM_IS_DEVICE_ETHERNET(device))
continue;
hwaddr_dev = _device_get_hwaddr(NM_DEVICE_ETHERNET(device));
if (!hwaddr_dev)
continue;
s = nmcs_utils_hwaddr_normalize(hwaddr_dev, -1);
if (s && nm_streq(s, hwaddr))
return device;
}
return NULL;
}
/*****************************************************************************/
typedef struct {
GMainLoop *main_loop;
NMCSProviderGetConfigResult *result;
} GetConfigData;
static void
_get_config_cb(GObject *source, GAsyncResult *res, gpointer user_data)
{
GetConfigData *data = user_data;
nm_auto_free_nmcs_provider_get_config_result NMCSProviderGetConfigResult *result = NULL;
gs_free_error GError *error = NULL;
result = nmcs_provider_get_config_finish(NMCS_PROVIDER(source), res, &error);
if (!result) {
if (!nm_utils_error_is_cancelled(error))
_LOGI("failure to get meta data: %s", error->message);
} else
_LOGD("meta data received");
data->result = g_steal_pointer(&result);
g_main_loop_quit(data->main_loop);
}
static NMCSProviderGetConfigResult *
_get_config(GCancellable *sigterm_cancellable, NMCSProvider *provider, NMClient *nmc)
{
nm_auto_unref_gmainloop GMainLoop *main_loop = g_main_loop_new(NULL, FALSE);
GetConfigData data = {
.main_loop = main_loop,
};
gs_strfreev char **hwaddrs = NULL;
hwaddrs = _nmc_get_hwaddrs(nmc);
nmcs_provider_get_config(provider,
TRUE,
(const char *const *) hwaddrs,
sigterm_cancellable,
_get_config_cb,
&data);
g_main_loop_run(main_loop);
return data.result;
}
/*****************************************************************************/
static gboolean
_nmc_skip_connection_by_user_data(NMConnection *connection)
{
NMSettingUser *s_user;
const char *v;
#define USER_TAG_SKIP "org.freedesktop.nm-cloud-setup.skip"
nm_assert(nm_setting_user_check_key(USER_TAG_SKIP, NULL));
s_user = NM_SETTING_USER(nm_connection_get_setting(connection, NM_TYPE_SETTING_USER));
if (s_user) {
v = nm_setting_user_get_data(s_user, USER_TAG_SKIP);
if (_nm_utils_ascii_str_to_bool(v, FALSE))
return TRUE;
}
return FALSE;
}
static gboolean
_nmc_skip_connection_by_type(NMConnection *connection)
{
if (!nm_streq0(nm_connection_get_connection_type(connection), NM_SETTING_WIRED_SETTING_NAME))
return TRUE;
if (!nm_connection_get_setting_ip4_config(connection))
return TRUE;
return FALSE;
}
static void
_nmc_mangle_connection(NMDevice *device,
NMConnection *connection,
const NMCSProviderGetConfigResult *result,
const NMCSProviderGetConfigIfaceData *config_data,
gboolean *out_skipped_single_addr,
gboolean *out_changed)
{
NMSettingIPConfig *s_ip;
NMActiveConnection *ac;
NMConnection *remote_connection;
NMSettingIPConfig *remote_s_ip = NULL;
gsize i;
gboolean addrs_changed = FALSE;
gboolean rules_changed = FALSE;
gboolean routes_changed = FALSE;
gs_unref_ptrarray GPtrArray *addrs_new = NULL;
gs_unref_ptrarray GPtrArray *rules_new = NULL;
gs_unref_ptrarray GPtrArray *routes_new = NULL;
NM_SET_OUT(out_skipped_single_addr, FALSE);
NM_SET_OUT(out_changed, FALSE);
s_ip = nm_connection_get_setting_ip4_config(connection);
nm_assert(NM_IS_SETTING_IP4_CONFIG(s_ip));
if ((ac = nm_device_get_active_connection(device))
&& (remote_connection = NM_CONNECTION(nm_active_connection_get_connection(ac))))
remote_s_ip = nm_connection_get_setting_ip4_config(remote_connection);
addrs_new = g_ptr_array_new_full(config_data->ipv4s_len, (GDestroyNotify) nm_ip_address_unref);
rules_new =
g_ptr_array_new_full(config_data->ipv4s_len, (GDestroyNotify) nm_ip_routing_rule_unref);
routes_new =
g_ptr_array_new_full(nm_g_ptr_array_len(config_data->iproutes) + !!config_data->ipv4s_len,
(GDestroyNotify) nm_ip_route_unref);
if (remote_s_ip) {
guint len;
guint j;
len = nm_setting_ip_config_get_num_addresses(remote_s_ip);
for (j = 0; j < len; j++) {
g_ptr_array_add(addrs_new,
nm_ip_address_dup(nm_setting_ip_config_get_address(remote_s_ip, j)));
}
len = nm_setting_ip_config_get_num_routes(remote_s_ip);
for (j = 0; j < len; j++) {
g_ptr_array_add(routes_new,
nm_ip_route_dup(nm_setting_ip_config_get_route(remote_s_ip, j)));
}
len = nm_setting_ip_config_get_num_routing_rules(remote_s_ip);
for (j = 0; j < len; j++) {
g_ptr_array_add(
rules_new,
nm_ip_routing_rule_ref(nm_setting_ip_config_get_routing_rule(remote_s_ip, j)));
}
}
if (result->num_valid_ifaces <= 1 && result->num_ipv4s <= 1) {
/* this setup only has one interface and one IPv4 address (or less).
* We don't need to configure policy routing in this case. */
NM_SET_OUT(out_skipped_single_addr, TRUE);
} else if (config_data->has_ipv4s && config_data->has_cidr) {
gs_unref_hashtable GHashTable *unique_subnets = g_hash_table_new(nm_direct_hash, NULL);
NMIPAddress *addr_entry;
NMIPRoute *route_entry;
NMIPRoutingRule *rule_entry;
in_addr_t gateway;
char sbuf[NM_INET_ADDRSTRLEN];
for (i = 0; i < config_data->ipv4s_len; i++) {
addr_entry = nm_ip_address_new_binary(AF_INET,
&config_data->ipv4s_arr[i],
config_data->cidr_prefix,
NULL);
nm_assert(addr_entry);
g_ptr_array_add(addrs_new, addr_entry);
}
if (config_data->has_gateway && config_data->gateway) {
gateway = config_data->gateway;
} else {
gateway =
nm_ip4_addr_clear_host_address(config_data->cidr_addr, config_data->cidr_prefix);
if (config_data->cidr_prefix < 32)
((guint8 *) &gateway)[3] += 1;
}
for (i = 0; i < config_data->ipv4s_len; i++) {
in_addr_t a = config_data->ipv4s_arr[i];
a = nm_ip4_addr_clear_host_address(a, config_data->cidr_prefix);
G_STATIC_ASSERT_EXPR(sizeof(gsize) >= sizeof(in_addr_t));
if (g_hash_table_add(unique_subnets, GSIZE_TO_POINTER(a))) {
route_entry =
nm_ip_route_new_binary(AF_INET, &a, config_data->cidr_prefix, NULL, 10, NULL);
nm_ip_route_set_attribute(route_entry,
NM_IP_ROUTE_ATTRIBUTE_TABLE,
g_variant_new_uint32(30200 + config_data->iface_idx));
g_ptr_array_add(routes_new, route_entry);
}
rule_entry = nm_ip_routing_rule_new(AF_INET);
nm_ip_routing_rule_set_priority(rule_entry, 30200 + config_data->iface_idx);
nm_ip_routing_rule_set_from(rule_entry,
nm_inet4_ntop(config_data->ipv4s_arr[i], sbuf),
32);
nm_ip_routing_rule_set_table(rule_entry, 30200 + config_data->iface_idx);
nm_assert(nm_ip_routing_rule_validate(rule_entry, NULL));
g_ptr_array_add(rules_new, rule_entry);
}
rule_entry = nm_ip_routing_rule_new(AF_INET);
nm_ip_routing_rule_set_priority(rule_entry, 30350);
nm_ip_routing_rule_set_table(rule_entry, RT_TABLE_MAIN);
nm_ip_routing_rule_set_suppress_prefixlength(rule_entry, 0);
nm_assert(nm_ip_routing_rule_validate(rule_entry, NULL));
g_ptr_array_add(rules_new, rule_entry);
route_entry = nm_ip_route_new_binary(AF_INET, &nm_ip_addr_zero, 0, &gateway, 10, NULL);
nm_ip_route_set_attribute(route_entry,
NM_IP_ROUTE_ATTRIBUTE_TABLE,
g_variant_new_uint32(30400 + config_data->iface_idx));
g_ptr_array_add(routes_new, route_entry);
for (i = 0; i < config_data->ipv4s_len; i++) {
rule_entry = nm_ip_routing_rule_new(AF_INET);
nm_ip_routing_rule_set_priority(rule_entry, 30400 + config_data->iface_idx);
nm_ip_routing_rule_set_from(rule_entry,
nm_inet4_ntop(config_data->ipv4s_arr[i], sbuf),
32);
nm_ip_routing_rule_set_table(rule_entry, 30400 + config_data->iface_idx);
nm_assert(nm_ip_routing_rule_validate(rule_entry, NULL));
g_ptr_array_add(rules_new, rule_entry);
}
}
for (i = 0; i < nm_g_ptr_array_len(config_data->iproutes); i++)
g_ptr_array_add(routes_new, _nm_ip_route_ref(config_data->iproutes->pdata[i]));
addrs_changed = nmcs_setting_ip_replace_ipv4_addresses(s_ip,
(NMIPAddress **) addrs_new->pdata,
addrs_new->len);
routes_changed = nmcs_setting_ip_replace_ipv4_routes(s_ip,
(NMIPRoute **) routes_new->pdata,
routes_new->len);
rules_changed = nmcs_setting_ip_replace_ipv4_rules(s_ip,
(NMIPRoutingRule **) rules_new->pdata,
rules_new->len);
NM_SET_OUT(out_changed, addrs_changed || routes_changed || rules_changed);
}
/*****************************************************************************/
static gboolean
_config_one(SigTermData *sigterm_data,
NMClient *nmc,
const NMCSProviderGetConfigResult *result,
guint idx)
{
const NMCSProviderGetConfigIfaceData *config_data = result->iface_datas_arr[idx];
const char *hwaddr = config_data->hwaddr;
gs_unref_object NMDevice *device = NULL;
gs_unref_object NMConnection *applied_connection = NULL;
guint64 applied_version_id;
gs_free_error GError *error = NULL;
gboolean changed;
gboolean skipped_single_addr;
gboolean version_id_changed;
guint try_count;
gboolean any_changes = FALSE;
gboolean maybe_no_preserved_external_ip;
g_main_context_iteration(NULL, FALSE);
if (g_cancellable_is_cancelled(sigterm_data->cancellable))
return FALSE;
device = nm_g_object_ref(_nmc_get_device_by_hwaddr(nmc, hwaddr));
if (!device) {
_LOGD("config device %s: skip because device not found", hwaddr);
return FALSE;
}
if (!nmcs_provider_get_config_iface_data_is_valid(config_data)) {
_LOGD("config device %s: skip because meta data not successfully fetched", hwaddr);
return FALSE;
}
if (config_data->iface_idx >= 100) {
/* since we use the iface_idx to select a table number, the range is limited from
* 0 to 99. Note that the providers are required to provide increasing numbers,
* so this means we bail out after the first 100 devices. */
_LOGD("config device %s: skip because number of supported interfaces reached", hwaddr);
return FALSE;
}
_LOGD("config device %s: configuring \"%s\" (%s)...",
hwaddr,
nm_device_get_iface(device) ?: "/unknown/",
nm_object_get_path(NM_OBJECT(device)));
try_count = 0;
try_again:
g_clear_object(&applied_connection);
g_clear_error(&error);
applied_connection = nmcs_device_get_applied_connection(device,
sigterm_data->cancellable,
&applied_version_id,
&error);
if (!applied_connection) {
if (!nm_utils_error_is_cancelled(error))
_LOGD("config device %s: device has no applied connection (%s). Skip",
hwaddr,
error->message);
return any_changes;
}
if (_nmc_skip_connection_by_user_data(applied_connection)) {
_LOGD("config device %s: skip applied connection due to user data %s",
hwaddr,
USER_TAG_SKIP);
return any_changes;
}
if (_nmc_skip_connection_by_type(applied_connection)) {
_LOGD("config device %s: device has no suitable applied connection. Skip", hwaddr);
return any_changes;
}
_nmc_mangle_connection(device,
applied_connection,
result,
config_data,
&skipped_single_addr,
&changed);
if (!changed) {
if (skipped_single_addr) {
_LOGD("config device %s: device needs no update to applied connection \"%s\" (%s) "
"because there are not multiple IP addresses. Skip",
hwaddr,
nm_connection_get_id(applied_connection),
nm_connection_get_uuid(applied_connection));
} else {
_LOGD(
"config device %s: device needs no update to applied connection \"%s\" (%s). Skip",
hwaddr,
nm_connection_get_id(applied_connection),
nm_connection_get_uuid(applied_connection));
}
return any_changes;
}
_LOGD("config device %s: reapply connection \"%s\" (%s)",
hwaddr,
nm_connection_get_id(applied_connection),
nm_connection_get_uuid(applied_connection));
/* we are about to call Reapply(). Even if that fails, it counts as if we changed something. */
any_changes = TRUE;
/* "preserve-external-ip" flag was only introduced in 1.41.6 (but maybe backported!).
* If we run 1.41.6+, we are sure that it's gonna work. Otherwise, we take into account
* that the call might fail due to the invalid flag and we retry. */
maybe_no_preserved_external_ip =
(nmc_client_has_version_info_v(nmc) < NM_ENCODE_VERSION(1, 41, 6));
/* Once we start reconfiguring the system, we cannot abort in the middle. From now on,
* any SIGTERM gets ignored until we are done. */
sigterm_data->enabled = FALSE;
if (!nmcs_device_reapply(device,
NULL,
applied_connection,
applied_version_id,
maybe_no_preserved_external_ip,
&version_id_changed,
&error)) {
if (version_id_changed && try_count < 5) {
_LOGD("config device %s: applied connection changed in the meantime. Retry...", hwaddr);
try_count++;
goto try_again;
}
if (!nm_utils_error_is_cancelled(error)) {
_LOGD("config device %s: failure to reapply connection \"%s\" (%s): %s",
hwaddr,
nm_connection_get_id(applied_connection),
nm_connection_get_uuid(applied_connection),
error->message);
}
return any_changes;
}
_LOGD("config device %s: connection \"%s\" (%s) reapplied",
hwaddr,
nm_connection_get_id(applied_connection),
nm_connection_get_uuid(applied_connection));
return any_changes;
}
static gboolean
_config_all(SigTermData *sigterm_data, NMClient *nmc, const NMCSProviderGetConfigResult *result)
{
gboolean any_changes = FALSE;
guint i;
for (i = 0; i < result->n_iface_datas; i++) {
if (_config_one(sigterm_data, nmc, result, i))
any_changes = TRUE;
}
return any_changes;
}
/*****************************************************************************/
static gboolean
sigterm_handler(gpointer user_data)
{
SigTermData *sigterm_data = user_data;
_LOGD("SIGTERM received (%s) (%s)",
sigterm_data->signal_received ? "first time" : "again",
sigterm_data->enabled ? "cancel operation" : "ignore");
sigterm_data->signal_received = TRUE;
if (sigterm_data->enabled)
g_cancellable_cancel(sigterm_data->cancellable);
return G_SOURCE_CONTINUE;
}
/*****************************************************************************/
int
main(int argc, const char *const *argv)
{
gs_unref_object GCancellable *sigterm_cancellable = NULL;
nm_auto_destroy_and_unref_gsource GSource *sigterm_source = NULL;
gs_unref_object NMCSProvider *provider = NULL;
gs_unref_object NMClient *nmc = NULL;
nm_auto_free_nmcs_provider_get_config_result NMCSProviderGetConfigResult *result = NULL;
gs_free_error GError *error = NULL;
SigTermData sigterm_data;
_nm_logging_enabled_init(g_getenv(NMCS_ENV_NM_CLOUD_SETUP_LOG));
_LOGD("nm-cloud-setup %s starting...", NM_DIST_VERSION);
if (argc != 1) {
g_printerr("%s: no command line arguments supported\n", argv[0]);
return EXIT_FAILURE;
}
sigterm_cancellable = g_cancellable_new();
sigterm_data = (SigTermData){
.cancellable = sigterm_cancellable,
.enabled = TRUE,
.signal_received = FALSE,
};
sigterm_source = nm_g_unix_signal_add_source(SIGTERM, sigterm_handler, &sigterm_data);
provider = _provider_detect(&sigterm_data);
if (!provider)
goto done;
nmc_client_new_waitsync(sigterm_cancellable,
&nmc,
&error,
NM_CLIENT_INSTANCE_FLAGS,
(guint) NM_CLIENT_INSTANCE_FLAGS_NO_AUTO_FETCH_PERMISSIONS,
NULL);
nmcs_wait_for_objects_register(nmc);
nmcs_wait_for_objects_register(nm_client_get_context_busy_watcher(nmc));
if (error) {
if (!nm_utils_error_is_cancelled(error))
_LOGI("failure to talk to NetworkManager: %s", error->message);
goto done;
}
if (!nm_client_get_nm_running(nmc)) {
_LOGI("NetworkManager is not running");
goto done;
}
result = _get_config(sigterm_cancellable, provider, nmc);
if (!result)
goto done;
if (_config_all(&sigterm_data, nmc, result))
_LOGI("some changes were applied for provider %s", nmcs_provider_get_name(provider));
else
_LOGD("no changes were applied for provider %s", nmcs_provider_get_name(provider));
done:
nm_clear_pointer(&result, nmcs_provider_get_config_result_free);
g_clear_object(&nmc);
g_clear_object(&provider);
if (!nmcs_wait_for_objects_iterate_until_done(NULL, 2000)) {
_LOGE("shutdown: timeout waiting to application to quit. This is a bug");
nm_assert_not_reached();
}
nm_clear_g_source_inst(&sigterm_source);
g_clear_object(&sigterm_cancellable);
return 0;
}
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