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/* SPDX-License-Identifier: GPL-2.0-or-later */
#include "src/core/nm-default-daemon.h"
#include "src/core/dns/nm-dns-manager.h"
#include "src/core/dns/nm-dns-systemd-resolved.h"
#include "nm-device-utils.h"
#include "nm-core-utils.h"
/*****************************************************************************/
NM_UTILS_LOOKUP_STR_DEFINE(
nm_device_state_queued_state_to_string,
NMDeviceState,
NM_UTILS_LOOKUP_DEFAULT(NM_PENDING_ACTIONPREFIX_QUEUED_STATE_CHANGE "???"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_UNKNOWN,
NM_PENDING_ACTIONPREFIX_QUEUED_STATE_CHANGE "unknown"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_UNMANAGED,
NM_PENDING_ACTIONPREFIX_QUEUED_STATE_CHANGE "unmanaged"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_UNAVAILABLE,
NM_PENDING_ACTIONPREFIX_QUEUED_STATE_CHANGE "unavailable"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_DISCONNECTED,
NM_PENDING_ACTIONPREFIX_QUEUED_STATE_CHANGE "disconnected"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_PREPARE,
NM_PENDING_ACTIONPREFIX_QUEUED_STATE_CHANGE "prepare"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_CONFIG,
NM_PENDING_ACTIONPREFIX_QUEUED_STATE_CHANGE "config"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_NEED_AUTH,
NM_PENDING_ACTIONPREFIX_QUEUED_STATE_CHANGE "need-auth"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_IP_CONFIG,
NM_PENDING_ACTIONPREFIX_QUEUED_STATE_CHANGE "ip-config"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_IP_CHECK,
NM_PENDING_ACTIONPREFIX_QUEUED_STATE_CHANGE "ip-check"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_SECONDARIES,
NM_PENDING_ACTIONPREFIX_QUEUED_STATE_CHANGE "secondaries"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_ACTIVATED,
NM_PENDING_ACTIONPREFIX_QUEUED_STATE_CHANGE "activated"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_DEACTIVATING,
NM_PENDING_ACTIONPREFIX_QUEUED_STATE_CHANGE "deactivating"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_FAILED,
NM_PENDING_ACTIONPREFIX_QUEUED_STATE_CHANGE "failed"), );
const char *
nm_device_state_to_string(NMDeviceState state)
{
return nm_device_state_queued_state_to_string(state)
+ NM_STRLEN(NM_PENDING_ACTIONPREFIX_QUEUED_STATE_CHANGE);
}
NM_UTILS_LOOKUP_STR_DEFINE(
nm_device_state_reason_to_string,
NMDeviceStateReason,
NM_UTILS_LOOKUP_DEFAULT(NULL),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_UNKNOWN, "unknown"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_NONE, "none"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_NOW_MANAGED, "managed"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_NOW_UNMANAGED, "unmanaged"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_CONFIG_FAILED, "config-failed"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_IP_CONFIG_UNAVAILABLE, "ip-config-unavailable"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_IP_CONFIG_EXPIRED, "ip-config-expired"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_NO_SECRETS, "no-secrets"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_SUPPLICANT_DISCONNECT, "supplicant-disconnect"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_SUPPLICANT_CONFIG_FAILED,
"supplicant-config-failed"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_SUPPLICANT_FAILED, "supplicant-failed"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_SUPPLICANT_TIMEOUT, "supplicant-timeout"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_PPP_START_FAILED, "ppp-start-failed"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_PPP_DISCONNECT, "ppp-disconnect"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_PPP_FAILED, "ppp-failed"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_DHCP_START_FAILED, "dhcp-start-failed"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_DHCP_ERROR, "dhcp-error"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_DHCP_FAILED, "dhcp-failed"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_SHARED_START_FAILED, "sharing-start-failed"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_SHARED_FAILED, "sharing-failed"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_AUTOIP_START_FAILED, "autoip-start-failed"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_AUTOIP_ERROR, "autoip-error"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_AUTOIP_FAILED, "autoip-failed"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_MODEM_BUSY, "modem-busy"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_MODEM_NO_DIAL_TONE, "modem-no-dialtone"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_MODEM_NO_CARRIER, "modem-no-carrier"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_MODEM_DIAL_TIMEOUT, "modem-dial-timeout"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_MODEM_DIAL_FAILED, "modem-dial-failed"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_MODEM_INIT_FAILED, "modem-init-failed"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_GSM_APN_FAILED, "gsm-apn-failed"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_GSM_REGISTRATION_NOT_SEARCHING,
"gsm-registration-idle"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_GSM_REGISTRATION_DENIED,
"gsm-registration-denied"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_GSM_REGISTRATION_TIMEOUT,
"gsm-registration-timeout"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_GSM_REGISTRATION_FAILED,
"gsm-registration-failed"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_GSM_PIN_CHECK_FAILED, "gsm-pin-check-failed"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_FIRMWARE_MISSING, "firmware-missing"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_REMOVED, "removed"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_SLEEPING, "sleeping"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_CONNECTION_REMOVED, "connection-removed"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_USER_REQUESTED, "user-requested"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_CARRIER, "carrier-changed"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_CONNECTION_ASSUMED, "connection-assumed"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_SUPPLICANT_AVAILABLE, "supplicant-available"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_MODEM_NOT_FOUND, "modem-not-found"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_BT_FAILED, "bluetooth-failed"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_GSM_SIM_NOT_INSERTED, "gsm-sim-not-inserted"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_GSM_SIM_PIN_REQUIRED, "gsm-sim-pin-required"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_GSM_SIM_PUK_REQUIRED, "gsm-sim-puk-required"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_GSM_SIM_WRONG, "gsm-sim-wrong"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_INFINIBAND_MODE, "infiniband-mode"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_DEPENDENCY_FAILED, "dependency-failed"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_BR2684_FAILED, "br2684-bridge-failed"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_MODEM_MANAGER_UNAVAILABLE,
"modem-manager-unavailable"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_SSID_NOT_FOUND, "ssid-not-found"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_SECONDARY_CONNECTION_FAILED,
"secondary-connection-failed"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_DCB_FCOE_FAILED, "dcb-fcoe-failed"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_TEAMD_CONTROL_FAILED, "teamd-control-failed"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_MODEM_FAILED, "modem-failed"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_MODEM_AVAILABLE, "modem-available"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_SIM_PIN_INCORRECT, "sim-pin-incorrect"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_NEW_ACTIVATION, "new-activation"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_PARENT_CHANGED, "parent-changed"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_PARENT_MANAGED_CHANGED,
"parent-managed-changed"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_OVSDB_FAILED, "ovsdb-failed"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_IP_ADDRESS_DUPLICATE, "ip-address-duplicate"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_IP_METHOD_UNSUPPORTED, "ip-method-unsupported"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_SRIOV_CONFIGURATION_FAILED,
"sriov-configuration-failed"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_STATE_REASON_PEER_NOT_FOUND, "peer-not-found"), );
NM_UTILS_LOOKUP_STR_DEFINE(nm_device_mtu_source_to_string,
NMDeviceMtuSource,
NM_UTILS_LOOKUP_DEFAULT_NM_ASSERT("unknown"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_MTU_SOURCE_NONE, "none"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_MTU_SOURCE_PARENT, "parent"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_MTU_SOURCE_IP_CONFIG, "ip-config"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_MTU_SOURCE_CONNECTION,
"connection"), );
NM_UTILS_LOOKUP_STR_DEFINE(nm_device_sys_iface_state_to_string,
NMDeviceSysIfaceState,
NM_UTILS_LOOKUP_DEFAULT_NM_ASSERT("unknown"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_SYS_IFACE_STATE_EXTERNAL, "external"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_SYS_IFACE_STATE_ASSUME, "assume"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_SYS_IFACE_STATE_MANAGED, "managed"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_SYS_IFACE_STATE_REMOVED,
"removed"), );
NM_UTILS_LOOKUP_STR_DEFINE(nm_device_ip_state_to_string,
NMDeviceIPState,
NM_UTILS_LOOKUP_DEFAULT_WARN("unknown"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_IP_STATE_NONE, "none"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_IP_STATE_PENDING, "pending"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_IP_STATE_READY, "done"),
NM_UTILS_LOOKUP_STR_ITEM(NM_DEVICE_IP_STATE_FAILED, "fail"), );
/*****************************************************************************/
#define SD_RESOLVED_DNS (1UL << 0)
/* Don't answer request from locally synthesized records (which includes /etc/hosts) */
#define SD_RESOLVED_NO_SYNTHESIZE (1UL << 11)
typedef struct {
int addr_family;
NMIPAddr address;
gulong cancellable_id;
GTask *task;
NMDnsSystemdResolvedResolveHandle *resolved_handle;
} ResolveAddrInfo;
#define _NMLOG_PREFIX_NAME "resolve-addr"
#define _NMLOG_DOMAIN LOGD_CORE
#define _NMLOG2(level, info, ...) \
G_STMT_START \
{ \
if (nm_logging_enabled((level), (_NMLOG_DOMAIN))) { \
ResolveAddrInfo *_info = (info); \
char _addr_str[NM_UTILS_INET_ADDRSTRLEN]; \
\
_nm_log((level), \
(_NMLOG_DOMAIN), \
0, \
NULL, \
NULL, \
_NMLOG_PREFIX_NAME "[" NM_HASH_OBFUSCATE_PTR_FMT \
",%s]: " _NM_UTILS_MACRO_FIRST(__VA_ARGS__), \
NM_HASH_OBFUSCATE_PTR(_info), \
nm_utils_inet_ntop(_info->addr_family, &_info->address, _addr_str) \
_NM_UTILS_MACRO_REST(__VA_ARGS__)); \
} \
} \
G_STMT_END
static void
resolve_addr_info_free(ResolveAddrInfo *info)
{
nm_assert(info->cancellable_id == 0);
nm_assert(!info->resolved_handle);
g_object_unref(info->task);
g_free(info);
}
static void
resolve_addr_complete(ResolveAddrInfo *info, char *hostname_take, GError *error_take)
{
nm_assert(!!hostname_take != !!error_take);
nm_clear_g_cancellable_disconnect(g_task_get_cancellable(info->task), &info->cancellable_id);
if (error_take)
g_task_return_error(info->task, error_take);
else
g_task_return_pointer(info->task, hostname_take, g_free);
resolve_addr_info_free(info);
}
static void
resolve_addr_helper_cb(GObject *source, GAsyncResult *result, gpointer user_data)
{
ResolveAddrInfo *info = user_data;
gs_free_error GError *error = NULL;
gs_free char *output = NULL;
output = nm_utils_spawn_helper_finish(result, &error);
if (nm_utils_error_is_cancelled(error))
return;
_LOG2D(info, "helper returned hostname '%s'", output);
resolve_addr_complete(info, g_steal_pointer(&output), g_steal_pointer(&error));
}
static void
resolve_addr_spawn_helper(ResolveAddrInfo *info)
{
char addr_str[NM_UTILS_INET_ADDRSTRLEN];
nm_utils_inet_ntop(info->addr_family, &info->address, addr_str);
_LOG2D(info, "start lookup via nm-daemon-helper");
nm_utils_spawn_helper(NM_MAKE_STRV("resolve-address", addr_str),
g_task_get_cancellable(info->task),
resolve_addr_helper_cb,
info);
}
static void
resolve_addr_resolved_cb(NMDnsSystemdResolved *resolved,
NMDnsSystemdResolvedResolveHandle *handle,
const NMDnsSystemdResolvedAddressResult *names,
guint names_len,
guint64 flags,
GError *error,
gpointer user_data)
{
ResolveAddrInfo *info = user_data;
info->resolved_handle = NULL;
if (nm_utils_error_is_cancelled(error))
return;
if (error) {
gs_free char *dbus_error = NULL;
_LOG2D(info, "error resolving via systemd-resolved: %s", error->message);
dbus_error = g_dbus_error_get_remote_error(error);
if (NM_STR_HAS_PREFIX(dbus_error, "org.freedesktop.resolve1.")) {
/* systemd-resolved is enabled but it couldn't resolve the
* address via DNS. Don't fall back to spawning the helper,
* because the helper will possibly ask again to
* systemd-resolved (via /etc/resolv.conf), potentially using
* other protocols than DNS or returning synthetic results.
*
* Consider the error as the final indication that the address
* can't be resolved.
*
* See: https://www.freedesktop.org/wiki/Software/systemd/resolved/#commonerrors
*/
resolve_addr_complete(info, NULL, g_error_copy(error));
return;
}
resolve_addr_spawn_helper(info);
return;
}
if (names_len == 0) {
_LOG2D(info, "systemd-resolved returned no result");
resolve_addr_complete(info, g_strdup(""), NULL);
return;
}
_LOG2D(info, "systemd-resolved returned hostname '%s'", names[0].name);
resolve_addr_complete(info, g_strdup(names[0].name), NULL);
}
static void
resolve_addr_cancelled(GObject *object, gpointer user_data)
{
ResolveAddrInfo *info = user_data;
GError *error = NULL;
nm_clear_g_signal_handler(g_task_get_cancellable(info->task), &info->cancellable_id);
nm_clear_pointer(&info->resolved_handle, nm_dns_systemd_resolved_resolve_cancel);
nm_utils_error_set_cancelled(&error, FALSE, NULL);
resolve_addr_complete(info, NULL, error);
}
void
nm_device_resolve_address(int addr_family,
gconstpointer address,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer cb_data)
{
ResolveAddrInfo *info;
NMDnsSystemdResolved *resolved;
info = g_new(ResolveAddrInfo, 1);
*info = (ResolveAddrInfo){
.task = nm_g_task_new(NULL, cancellable, nm_device_resolve_address, callback, cb_data),
.addr_family = addr_family,
.address = nm_ip_addr_init(addr_family, address),
};
if (cancellable) {
gulong signal_id;
signal_id =
g_cancellable_connect(cancellable, G_CALLBACK(resolve_addr_cancelled), info, NULL);
if (signal_id == 0) {
/* the request is already cancelled. Return. */
return;
}
info->cancellable_id = signal_id;
}
resolved = (NMDnsSystemdResolved *) nm_dns_manager_get_systemd_resolved(nm_dns_manager_get());
if (resolved) {
_LOG2D(info, "start lookup via systemd-resolved");
info->resolved_handle =
nm_dns_systemd_resolved_resolve_address(resolved,
0,
addr_family,
address,
SD_RESOLVED_DNS | SD_RESOLVED_NO_SYNTHESIZE,
20000,
resolve_addr_resolved_cb,
info);
return;
}
resolve_addr_spawn_helper(info);
}
char *
nm_device_resolve_address_finish(GAsyncResult *result, GError **error)
{
GTask *task = G_TASK(result);
nm_assert(nm_g_task_is_valid(result, NULL, nm_device_resolve_address));
return g_task_propagate_pointer(task, error);
}
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