// SPDX-License-Identifier: GPL-2.0+ /* * Copyright 2015 Red Hat, Inc. */ #include "nm-default.h" #include "nm-device-ip-tunnel.h" #include #include #include #include #include #include "nm-device-private.h" #include "nm-manager.h" #include "platform/nm-platform.h" #include "nm-device-factory.h" #include "nm-core-internal.h" #include "settings/nm-settings.h" #include "nm-act-request.h" #include "nm-ip4-config.h" #include "nm-device-logging.h" _LOG_DECLARE_SELF(NMDeviceIPTunnel); /*****************************************************************************/ NM_GOBJECT_PROPERTIES_DEFINE (NMDeviceIPTunnel, PROP_MODE, PROP_LOCAL, PROP_REMOTE, PROP_TTL, PROP_TOS, PROP_PATH_MTU_DISCOVERY, PROP_INPUT_KEY, PROP_OUTPUT_KEY, PROP_ENCAPSULATION_LIMIT, PROP_FLOW_LABEL, PROP_FLAGS, ); typedef struct { NMIPTunnelMode mode; char *local; char *remote; guint8 ttl; guint8 tos; gboolean path_mtu_discovery; int addr_family; char *input_key; char *output_key; guint8 encap_limit; guint32 flow_label; NMIPTunnelFlags flags; } NMDeviceIPTunnelPrivate; struct _NMDeviceIPTunnel { NMDevice parent; NMDeviceIPTunnelPrivate _priv; }; struct _NMDeviceIPTunnelClass { NMDeviceClass parent; }; G_DEFINE_TYPE (NMDeviceIPTunnel, nm_device_ip_tunnel, NM_TYPE_DEVICE) #define NM_DEVICE_IP_TUNNEL_GET_PRIVATE(self) _NM_GET_PRIVATE (self, NMDeviceIPTunnel, NM_IS_DEVICE_IP_TUNNEL) /*****************************************************************************/ static guint32 ip6tnl_flags_setting_to_plat (NMIPTunnelFlags flags) { G_STATIC_ASSERT (NM_IP_TUNNEL_FLAG_IP6_IGN_ENCAP_LIMIT == IP6_TNL_F_IGN_ENCAP_LIMIT); G_STATIC_ASSERT (NM_IP_TUNNEL_FLAG_IP6_USE_ORIG_TCLASS == IP6_TNL_F_USE_ORIG_TCLASS); G_STATIC_ASSERT (NM_IP_TUNNEL_FLAG_IP6_USE_ORIG_FLOWLABEL == IP6_TNL_F_USE_ORIG_FLOWLABEL); G_STATIC_ASSERT (NM_IP_TUNNEL_FLAG_IP6_MIP6_DEV == IP6_TNL_F_MIP6_DEV); G_STATIC_ASSERT (NM_IP_TUNNEL_FLAG_IP6_RCV_DSCP_COPY == IP6_TNL_F_RCV_DSCP_COPY); G_STATIC_ASSERT (NM_IP_TUNNEL_FLAG_IP6_USE_ORIG_FWMARK == IP6_TNL_F_USE_ORIG_FWMARK); /* NOTE: "accidentally", the numeric values correspond. * For flags added in the future, that might no longer * be the case. */ return flags & _NM_IP_TUNNEL_FLAG_ALL_IP6TNL; } static NMIPTunnelFlags ip6tnl_flags_plat_to_setting (guint32 flags) { return flags & ((guint32) _NM_IP_TUNNEL_FLAG_ALL_IP6TNL); } /*****************************************************************************/ static gboolean address_equal_pp (int family, const char *a, const char *b) { char buffer1[sizeof (struct in6_addr)] = { }; char buffer2[sizeof (struct in6_addr)] = { }; g_return_val_if_fail (family == AF_INET || family == AF_INET6, FALSE); if (a) inet_pton (family, a, buffer1); if (b) inet_pton (family, b, buffer2); return !memcmp (buffer1, buffer2, family == AF_INET ? sizeof (in_addr_t) : sizeof (struct in6_addr)); } static gboolean address_equal_pn (int family, const char *a, const void *b) { char buffer1[sizeof (struct in6_addr)] = { }; g_return_val_if_fail (family == AF_INET || family == AF_INET6, FALSE); if (a) inet_pton (family, a, buffer1); return !memcmp (buffer1, b, family == AF_INET ? sizeof (in_addr_t) : sizeof (struct in6_addr)); } static void update_properties_from_ifindex (NMDevice *device, int ifindex) { NMDeviceIPTunnel *self = NM_DEVICE_IP_TUNNEL (device); NMDeviceIPTunnelPrivate *priv = NM_DEVICE_IP_TUNNEL_GET_PRIVATE (self); int parent_ifindex = 0; in_addr_t local4 = 0; in_addr_t remote4 = 0; struct in6_addr local6 = IN6ADDR_ANY_INIT; struct in6_addr remote6 = IN6ADDR_ANY_INIT; guint8 ttl = 0; guint8 tos = 0; guint8 encap_limit = 0; gboolean pmtud = FALSE; guint32 flow_label = 0; NMIPTunnelFlags flags = NM_IP_TUNNEL_FLAG_NONE; char *key; if (ifindex <= 0) { clear: nm_device_parent_set_ifindex (device, 0); if (priv->local) { g_clear_pointer (&priv->local, g_free); _notify (self, PROP_LOCAL); } if (priv->remote) { g_clear_pointer (&priv->remote, g_free); _notify (self, PROP_REMOTE); } if (priv->input_key) { g_clear_pointer (&priv->input_key, g_free); _notify (self, PROP_INPUT_KEY); } if (priv->output_key) { g_clear_pointer (&priv->output_key, g_free); _notify (self, PROP_OUTPUT_KEY); } goto out; } if (NM_IN_SET (priv->mode, NM_IP_TUNNEL_MODE_GRE, NM_IP_TUNNEL_MODE_GRETAP)) { const NMPlatformLnkGre *lnk; if (priv->mode == NM_IP_TUNNEL_MODE_GRE) lnk = nm_platform_link_get_lnk_gre (nm_device_get_platform (device), ifindex, NULL); else lnk = nm_platform_link_get_lnk_gretap (nm_device_get_platform (device), ifindex, NULL); if (!lnk) { _LOGW (LOGD_PLATFORM, "could not read %s properties", "gre"); goto clear; } parent_ifindex = lnk->parent_ifindex; local4 = lnk->local; remote4 = lnk->remote; ttl = lnk->ttl; tos = lnk->tos; pmtud = lnk->path_mtu_discovery; if (NM_FLAGS_HAS (lnk->input_flags, NM_GRE_KEY)) { key = g_strdup_printf ("%u", lnk->input_key); if (g_strcmp0 (priv->input_key, key)) { g_free (priv->input_key); priv->input_key = key; _notify (self, PROP_INPUT_KEY); } else g_free (key); } else { if (priv->input_key) { g_clear_pointer (&priv->input_key, g_free); _notify (self, PROP_INPUT_KEY); } } if (NM_FLAGS_HAS (lnk->output_flags, NM_GRE_KEY)) { key = g_strdup_printf ("%u", lnk->output_key); if (g_strcmp0 (priv->output_key, key)) { g_free (priv->output_key); priv->output_key = key; _notify (self, PROP_OUTPUT_KEY); } else g_free (key); } else { if (priv->output_key) { g_clear_pointer (&priv->output_key, g_free); _notify (self, PROP_OUTPUT_KEY); } } } else if (priv->mode == NM_IP_TUNNEL_MODE_SIT) { const NMPlatformLnkSit *lnk; lnk = nm_platform_link_get_lnk_sit (nm_device_get_platform (device), ifindex, NULL); if (!lnk) { _LOGW (LOGD_PLATFORM, "could not read %s properties", "sit"); goto clear; } parent_ifindex = lnk->parent_ifindex; local4 = lnk->local; remote4 = lnk->remote; ttl = lnk->ttl; tos = lnk->tos; pmtud = lnk->path_mtu_discovery; } else if (priv->mode == NM_IP_TUNNEL_MODE_IPIP) { const NMPlatformLnkIpIp *lnk; lnk = nm_platform_link_get_lnk_ipip (nm_device_get_platform (device), ifindex, NULL); if (!lnk) { _LOGW (LOGD_PLATFORM, "could not read %s properties", "ipip"); goto clear; } parent_ifindex = lnk->parent_ifindex; local4 = lnk->local; remote4 = lnk->remote; ttl = lnk->ttl; tos = lnk->tos; pmtud = lnk->path_mtu_discovery; } else if (NM_IN_SET (priv->mode, NM_IP_TUNNEL_MODE_IPIP6, NM_IP_TUNNEL_MODE_IP6IP6, NM_IP_TUNNEL_MODE_IP6GRE, NM_IP_TUNNEL_MODE_IP6GRETAP)) { const NMPlatformLnkIp6Tnl *lnk; NMPlatform *plat = nm_device_get_platform (device); if (priv->mode == NM_IP_TUNNEL_MODE_IP6GRE) lnk = nm_platform_link_get_lnk_ip6gre (plat, ifindex, NULL); else if (priv->mode == NM_IP_TUNNEL_MODE_IP6GRETAP) lnk = nm_platform_link_get_lnk_ip6gretap (plat, ifindex, NULL); else lnk = nm_platform_link_get_lnk_ip6tnl (plat, ifindex, NULL); if (!lnk) { _LOGW (LOGD_PLATFORM, "could not read %s properties", "ip6tnl"); goto clear; } parent_ifindex = lnk->parent_ifindex; local6 = lnk->local; remote6 = lnk->remote; ttl = lnk->ttl; tos = lnk->tclass; encap_limit = lnk->encap_limit; flow_label = lnk->flow_label; flags = ip6tnl_flags_plat_to_setting (lnk->flags); if (NM_IN_SET (priv->mode, NM_IP_TUNNEL_MODE_IP6GRE, NM_IP_TUNNEL_MODE_IP6GRETAP)) { if (NM_FLAGS_HAS (lnk->input_flags, NM_GRE_KEY)) { key = g_strdup_printf ("%u", lnk->input_key); if (g_strcmp0 (priv->input_key, key)) { g_free (priv->input_key); priv->input_key = key; _notify (self, PROP_INPUT_KEY); } else g_free (key); } else { if (priv->input_key) { g_clear_pointer (&priv->input_key, g_free); _notify (self, PROP_INPUT_KEY); } } if (NM_FLAGS_HAS (lnk->output_flags, NM_GRE_KEY)) { key = g_strdup_printf ("%u", lnk->output_key); if (g_strcmp0 (priv->output_key, key)) { g_free (priv->output_key); priv->output_key = key; _notify (self, PROP_OUTPUT_KEY); } else g_free (key); } else { if (priv->output_key) { g_clear_pointer (&priv->output_key, g_free); _notify (self, PROP_OUTPUT_KEY); } } } } else g_return_if_reached (); nm_device_parent_set_ifindex (device, parent_ifindex); if (priv->addr_family == AF_INET) { if (!address_equal_pn (AF_INET, priv->local, &local4)) { g_clear_pointer (&priv->local, g_free); if (local4) priv->local = nm_utils_inet4_ntop_dup (local4); _notify (self, PROP_LOCAL); } if (!address_equal_pn (AF_INET, priv->remote, &remote4)) { g_clear_pointer (&priv->remote, g_free); if (remote4) priv->remote = nm_utils_inet4_ntop_dup (remote4); _notify (self, PROP_REMOTE); } } else { if (!address_equal_pn (AF_INET6, priv->local, &local6)) { g_clear_pointer (&priv->local, g_free); if (memcmp (&local6, &in6addr_any, sizeof (in6addr_any))) priv->local = nm_utils_inet6_ntop_dup (&local6); _notify (self, PROP_LOCAL); } if (!address_equal_pn (AF_INET6, priv->remote, &remote6)) { g_clear_pointer (&priv->remote, g_free); if (memcmp (&remote6, &in6addr_any, sizeof (in6addr_any))) priv->remote = nm_utils_inet6_ntop_dup (&remote6); _notify (self, PROP_REMOTE); } } out: if (priv->ttl != ttl) { priv->ttl = ttl; _notify (self, PROP_TTL); } if (priv->tos != tos) { priv->tos = tos; _notify (self, PROP_TOS); } if (priv->path_mtu_discovery != pmtud) { priv->path_mtu_discovery = pmtud; _notify (self, PROP_PATH_MTU_DISCOVERY); } if (priv->encap_limit != encap_limit) { priv->encap_limit = encap_limit; _notify (self, PROP_ENCAPSULATION_LIMIT); } if (priv->flow_label != flow_label) { priv->flow_label = flow_label; _notify (self, PROP_FLOW_LABEL); } if (priv->flags != flags) { priv->flags = flags; _notify (self, PROP_FLAGS); } } static void update_properties (NMDevice *device) { update_properties_from_ifindex (device, nm_device_get_ifindex (device)); } static void link_changed (NMDevice *device, const NMPlatformLink *pllink) { NM_DEVICE_CLASS (nm_device_ip_tunnel_parent_class)->link_changed (device, pllink); update_properties (device); } static gboolean complete_connection (NMDevice *device, NMConnection *connection, const char *specific_object, NMConnection *const*existing_connections, GError **error) { NMSettingIPTunnel *s_ip_tunnel; nm_utils_complete_generic (nm_device_get_platform (device), connection, NM_SETTING_IP_TUNNEL_SETTING_NAME, existing_connections, NULL, _("IP tunnel connection"), NULL, NULL, TRUE); s_ip_tunnel = nm_connection_get_setting_ip_tunnel (connection); if (!s_ip_tunnel) { g_set_error_literal (error, NM_DEVICE_ERROR, NM_DEVICE_ERROR_INVALID_CONNECTION, "A 'tunnel' setting is required."); return FALSE; } return TRUE; } static void update_connection (NMDevice *device, NMConnection *connection) { NMDeviceIPTunnel *self = NM_DEVICE_IP_TUNNEL (device); NMDeviceIPTunnelPrivate *priv = NM_DEVICE_IP_TUNNEL_GET_PRIVATE (self); NMSettingIPTunnel *s_ip_tunnel = nm_connection_get_setting_ip_tunnel (connection); if (!s_ip_tunnel) { s_ip_tunnel = (NMSettingIPTunnel *) nm_setting_ip_tunnel_new (); nm_connection_add_setting (connection, (NMSetting *) s_ip_tunnel); } if (nm_setting_ip_tunnel_get_mode (s_ip_tunnel) != priv->mode) g_object_set (G_OBJECT (s_ip_tunnel), NM_SETTING_IP_TUNNEL_MODE, priv->mode, NULL); g_object_set (s_ip_tunnel, NM_SETTING_IP_TUNNEL_PARENT, nm_device_parent_find_for_connection (device, nm_setting_ip_tunnel_get_parent (s_ip_tunnel)), NULL); if (!address_equal_pp (priv->addr_family, nm_setting_ip_tunnel_get_local (s_ip_tunnel), priv->local)) g_object_set (G_OBJECT (s_ip_tunnel), NM_SETTING_IP_TUNNEL_LOCAL, priv->local, NULL); if (!address_equal_pp (priv->addr_family, nm_setting_ip_tunnel_get_remote (s_ip_tunnel), priv->remote)) g_object_set (G_OBJECT (s_ip_tunnel), NM_SETTING_IP_TUNNEL_REMOTE, priv->remote, NULL); if (nm_setting_ip_tunnel_get_ttl (s_ip_tunnel) != priv->ttl) g_object_set (G_OBJECT (s_ip_tunnel), NM_SETTING_IP_TUNNEL_TTL, priv->ttl, NULL); if (nm_setting_ip_tunnel_get_tos (s_ip_tunnel) != priv->tos) g_object_set (G_OBJECT (s_ip_tunnel), NM_SETTING_IP_TUNNEL_TOS, priv->tos, NULL); if (nm_setting_ip_tunnel_get_path_mtu_discovery (s_ip_tunnel) != priv->path_mtu_discovery) { g_object_set (G_OBJECT (s_ip_tunnel), NM_SETTING_IP_TUNNEL_PATH_MTU_DISCOVERY, priv->path_mtu_discovery, NULL); } if (nm_setting_ip_tunnel_get_encapsulation_limit (s_ip_tunnel) != priv->encap_limit) { g_object_set (G_OBJECT (s_ip_tunnel), NM_SETTING_IP_TUNNEL_ENCAPSULATION_LIMIT, priv->encap_limit, NULL); } if (nm_setting_ip_tunnel_get_flow_label (s_ip_tunnel) != priv->flow_label) { g_object_set (G_OBJECT (s_ip_tunnel), NM_SETTING_IP_TUNNEL_FLOW_LABEL, priv->flow_label, NULL); } if (NM_IN_SET (priv->mode, NM_IP_TUNNEL_MODE_GRE, NM_IP_TUNNEL_MODE_GRETAP, NM_IP_TUNNEL_MODE_IP6GRE, NM_IP_TUNNEL_MODE_IP6GRETAP)) { if (g_strcmp0 (nm_setting_ip_tunnel_get_input_key (s_ip_tunnel), priv->input_key)) { g_object_set (G_OBJECT (s_ip_tunnel), NM_SETTING_IP_TUNNEL_INPUT_KEY, priv->input_key, NULL); } if (g_strcmp0 (nm_setting_ip_tunnel_get_output_key (s_ip_tunnel), priv->output_key)) { g_object_set (G_OBJECT (s_ip_tunnel), NM_SETTING_IP_TUNNEL_OUTPUT_KEY, priv->output_key, NULL); } } } static gboolean check_connection_compatible (NMDevice *device, NMConnection *connection, GError **error) { NMDeviceIPTunnel *self = NM_DEVICE_IP_TUNNEL (device); NMDeviceIPTunnelPrivate *priv = NM_DEVICE_IP_TUNNEL_GET_PRIVATE (self); NMSettingIPTunnel *s_ip_tunnel; const char *parent; if (!NM_DEVICE_CLASS (nm_device_ip_tunnel_parent_class)->check_connection_compatible (device, connection, error)) return FALSE; s_ip_tunnel = nm_connection_get_setting_ip_tunnel (connection); if (nm_setting_ip_tunnel_get_mode (s_ip_tunnel) != priv->mode) { nm_utils_error_set_literal (error, NM_UTILS_ERROR_CONNECTION_AVAILABLE_TEMPORARY, "incompatible IP tunnel mode"); return FALSE; } if (nm_device_is_real (device)) { /* Check parent interface; could be an interface name or a UUID */ parent = nm_setting_ip_tunnel_get_parent (s_ip_tunnel); if (parent && !nm_device_match_parent (device, parent)) { nm_utils_error_set_literal (error, NM_UTILS_ERROR_CONNECTION_AVAILABLE_TEMPORARY, "IP tunnel parent mismatches"); return FALSE; } if (!address_equal_pp (priv->addr_family, nm_setting_ip_tunnel_get_local (s_ip_tunnel), priv->local)) { nm_utils_error_set_literal (error, NM_UTILS_ERROR_CONNECTION_AVAILABLE_TEMPORARY, "local IP tunnel address mismatches"); return FALSE; } if (!address_equal_pp (priv->addr_family, nm_setting_ip_tunnel_get_remote (s_ip_tunnel), priv->remote)) { nm_utils_error_set_literal (error, NM_UTILS_ERROR_CONNECTION_AVAILABLE_TEMPORARY, "remote IP tunnel address mismatches"); return FALSE; } if (nm_setting_ip_tunnel_get_ttl (s_ip_tunnel) != priv->ttl) { nm_utils_error_set_literal (error, NM_UTILS_ERROR_CONNECTION_AVAILABLE_TEMPORARY, "TTL of IP tunnel mismatches"); return FALSE; } if (nm_setting_ip_tunnel_get_tos (s_ip_tunnel) != priv->tos) { nm_utils_error_set_literal (error, NM_UTILS_ERROR_CONNECTION_AVAILABLE_TEMPORARY, "TOS of IP tunnel mismatches"); return FALSE; } if (priv->addr_family == AF_INET) { if (nm_setting_ip_tunnel_get_path_mtu_discovery (s_ip_tunnel) != priv->path_mtu_discovery) { nm_utils_error_set_literal (error, NM_UTILS_ERROR_CONNECTION_AVAILABLE_TEMPORARY, "MTU discovery setting of IP tunnel mismatches"); return FALSE; } } else { if (nm_setting_ip_tunnel_get_encapsulation_limit (s_ip_tunnel) != priv->encap_limit) { nm_utils_error_set_literal (error, NM_UTILS_ERROR_CONNECTION_AVAILABLE_TEMPORARY, "encapsulation limit of IP tunnel mismatches"); return FALSE; } if (nm_setting_ip_tunnel_get_flow_label (s_ip_tunnel) != priv->flow_label) { nm_utils_error_set_literal (error, NM_UTILS_ERROR_CONNECTION_AVAILABLE_TEMPORARY, "flow-label of IP tunnel mismatches"); return FALSE; } } } return TRUE; } static NMIPTunnelMode platform_link_to_tunnel_mode (const NMPlatformLink *link) { const NMPlatformLnkIp6Tnl *lnk; switch (link->type) { case NM_LINK_TYPE_GRE: return NM_IP_TUNNEL_MODE_GRE; case NM_LINK_TYPE_GRETAP: return NM_IP_TUNNEL_MODE_GRETAP; case NM_LINK_TYPE_IP6TNL: lnk = nm_platform_link_get_lnk_ip6tnl (NM_PLATFORM_GET, link->ifindex, NULL); if (lnk) { if (lnk->proto == IPPROTO_IPIP) return NM_IP_TUNNEL_MODE_IPIP6; if (lnk->proto == IPPROTO_IPV6) return NM_IP_TUNNEL_MODE_IP6IP6; } return NM_IP_TUNNEL_MODE_UNKNOWN; case NM_LINK_TYPE_IP6GRE: return NM_IP_TUNNEL_MODE_IP6GRE; case NM_LINK_TYPE_IP6GRETAP: return NM_IP_TUNNEL_MODE_IP6GRETAP; case NM_LINK_TYPE_IPIP: return NM_IP_TUNNEL_MODE_IPIP; case NM_LINK_TYPE_SIT: return NM_IP_TUNNEL_MODE_SIT; default: g_return_val_if_reached (NM_IP_TUNNEL_MODE_UNKNOWN); } } static NMLinkType tunnel_mode_to_link_type (NMIPTunnelMode tunnel_mode) { switch (tunnel_mode) { case NM_IP_TUNNEL_MODE_GRE: return NM_LINK_TYPE_GRE; case NM_IP_TUNNEL_MODE_GRETAP: return NM_LINK_TYPE_GRETAP; case NM_IP_TUNNEL_MODE_IPIP6: case NM_IP_TUNNEL_MODE_IP6IP6: return NM_LINK_TYPE_IP6TNL; case NM_IP_TUNNEL_MODE_IP6GRE: return NM_LINK_TYPE_IP6GRE; case NM_IP_TUNNEL_MODE_IP6GRETAP: return NM_LINK_TYPE_IP6GRETAP; case NM_IP_TUNNEL_MODE_IPIP: return NM_LINK_TYPE_IPIP; case NM_IP_TUNNEL_MODE_SIT: return NM_LINK_TYPE_SIT; case NM_IP_TUNNEL_MODE_VTI: case NM_IP_TUNNEL_MODE_VTI6: case NM_IP_TUNNEL_MODE_ISATAP: return NM_LINK_TYPE_UNKNOWN; case NM_IP_TUNNEL_MODE_UNKNOWN: break; } g_return_val_if_reached (NM_LINK_TYPE_UNKNOWN); } /*****************************************************************************/ static gboolean create_and_realize (NMDevice *device, NMConnection *connection, NMDevice *parent, const NMPlatformLink **out_plink, GError **error) { const char *iface = nm_device_get_iface (device); NMSettingIPTunnel *s_ip_tunnel; NMPlatformLnkGre lnk_gre = { }; NMPlatformLnkSit lnk_sit = { }; NMPlatformLnkIpIp lnk_ipip = { }; NMPlatformLnkIp6Tnl lnk_ip6tnl = { }; const char *str; gint64 val; NMIPTunnelMode mode; int r; s_ip_tunnel = nm_connection_get_setting_ip_tunnel (connection); g_assert (s_ip_tunnel); mode = nm_setting_ip_tunnel_get_mode (s_ip_tunnel); switch (mode) { case NM_IP_TUNNEL_MODE_GRETAP: lnk_gre.is_tap = TRUE; /* fall-through */ case NM_IP_TUNNEL_MODE_GRE: if (parent) lnk_gre.parent_ifindex = nm_device_get_ifindex (parent); str = nm_setting_ip_tunnel_get_local (s_ip_tunnel); if (str) inet_pton (AF_INET, str, &lnk_gre.local); str = nm_setting_ip_tunnel_get_remote (s_ip_tunnel); g_assert (str); inet_pton (AF_INET, str, &lnk_gre.remote); lnk_gre.ttl = nm_setting_ip_tunnel_get_ttl (s_ip_tunnel); lnk_gre.tos = nm_setting_ip_tunnel_get_tos (s_ip_tunnel); lnk_gre.path_mtu_discovery = nm_setting_ip_tunnel_get_path_mtu_discovery (s_ip_tunnel); val = _nm_utils_ascii_str_to_int64 (nm_setting_ip_tunnel_get_input_key (s_ip_tunnel), 10, 0, G_MAXUINT32, -1); if (val != -1) { lnk_gre.input_key = val; lnk_gre.input_flags = NM_GRE_KEY; } val = _nm_utils_ascii_str_to_int64 (nm_setting_ip_tunnel_get_output_key (s_ip_tunnel), 10, 0, G_MAXUINT32, -1); if (val != -1) { lnk_gre.output_key = val; lnk_gre.output_flags = NM_GRE_KEY; } r = nm_platform_link_gre_add (nm_device_get_platform (device), iface, &lnk_gre, out_plink); if (r < 0) { g_set_error (error, NM_DEVICE_ERROR, NM_DEVICE_ERROR_CREATION_FAILED, "Failed to create GRE interface '%s' for '%s': %s", iface, nm_connection_get_id (connection), nm_strerror (r)); return FALSE; } break; case NM_IP_TUNNEL_MODE_SIT: if (parent) lnk_sit.parent_ifindex = nm_device_get_ifindex (parent); str = nm_setting_ip_tunnel_get_local (s_ip_tunnel); if (str) inet_pton (AF_INET, str, &lnk_sit.local); str = nm_setting_ip_tunnel_get_remote (s_ip_tunnel); g_assert (str); inet_pton (AF_INET, str, &lnk_sit.remote); lnk_sit.ttl = nm_setting_ip_tunnel_get_ttl (s_ip_tunnel); lnk_sit.tos = nm_setting_ip_tunnel_get_tos (s_ip_tunnel); lnk_sit.path_mtu_discovery = nm_setting_ip_tunnel_get_path_mtu_discovery (s_ip_tunnel); r = nm_platform_link_sit_add (nm_device_get_platform (device), iface, &lnk_sit, out_plink); if (r < 0) { g_set_error (error, NM_DEVICE_ERROR, NM_DEVICE_ERROR_CREATION_FAILED, "Failed to create SIT interface '%s' for '%s': %s", iface, nm_connection_get_id (connection), nm_strerror (r)); return FALSE; } break; case NM_IP_TUNNEL_MODE_IPIP: if (parent) lnk_ipip.parent_ifindex = nm_device_get_ifindex (parent); str = nm_setting_ip_tunnel_get_local (s_ip_tunnel); if (str) inet_pton (AF_INET, str, &lnk_ipip.local); str = nm_setting_ip_tunnel_get_remote (s_ip_tunnel); g_assert (str); inet_pton (AF_INET, str, &lnk_ipip.remote); lnk_ipip.ttl = nm_setting_ip_tunnel_get_ttl (s_ip_tunnel); lnk_ipip.tos = nm_setting_ip_tunnel_get_tos (s_ip_tunnel); lnk_ipip.path_mtu_discovery = nm_setting_ip_tunnel_get_path_mtu_discovery (s_ip_tunnel); r = nm_platform_link_ipip_add (nm_device_get_platform (device), iface, &lnk_ipip, out_plink); if (r < 0) { g_set_error (error, NM_DEVICE_ERROR, NM_DEVICE_ERROR_CREATION_FAILED, "Failed to create IPIP interface '%s' for '%s': %s", iface, nm_connection_get_id (connection), nm_strerror (r)); return FALSE; } break; case NM_IP_TUNNEL_MODE_IPIP6: case NM_IP_TUNNEL_MODE_IP6IP6: case NM_IP_TUNNEL_MODE_IP6GRE: case NM_IP_TUNNEL_MODE_IP6GRETAP: if (parent) lnk_ip6tnl.parent_ifindex = nm_device_get_ifindex (parent); str = nm_setting_ip_tunnel_get_local (s_ip_tunnel); if (str) inet_pton (AF_INET6, str, &lnk_ip6tnl.local); str = nm_setting_ip_tunnel_get_remote (s_ip_tunnel); g_assert (str); inet_pton (AF_INET6, str, &lnk_ip6tnl.remote); lnk_ip6tnl.ttl = nm_setting_ip_tunnel_get_ttl (s_ip_tunnel); lnk_ip6tnl.tclass = nm_setting_ip_tunnel_get_tos (s_ip_tunnel); lnk_ip6tnl.encap_limit = nm_setting_ip_tunnel_get_encapsulation_limit (s_ip_tunnel); lnk_ip6tnl.flow_label = nm_setting_ip_tunnel_get_flow_label (s_ip_tunnel); lnk_ip6tnl.flags = ip6tnl_flags_setting_to_plat (nm_setting_ip_tunnel_get_flags (s_ip_tunnel)); if (NM_IN_SET (mode, NM_IP_TUNNEL_MODE_IP6GRE, NM_IP_TUNNEL_MODE_IP6GRETAP)) { val = _nm_utils_ascii_str_to_int64 (nm_setting_ip_tunnel_get_input_key (s_ip_tunnel), 10, 0, G_MAXUINT32, -1); if (val != -1) { lnk_ip6tnl.input_key = val; lnk_ip6tnl.input_flags = NM_GRE_KEY; } val = _nm_utils_ascii_str_to_int64 (nm_setting_ip_tunnel_get_output_key (s_ip_tunnel), 10, 0, G_MAXUINT32, -1); if (val != -1) { lnk_ip6tnl.output_key = val; lnk_ip6tnl.output_flags = NM_GRE_KEY; } lnk_ip6tnl.is_gre = TRUE; lnk_ip6tnl.is_tap = (mode == NM_IP_TUNNEL_MODE_IP6GRETAP); r = nm_platform_link_ip6gre_add (nm_device_get_platform (device), iface, &lnk_ip6tnl, out_plink); } else { lnk_ip6tnl.proto = nm_setting_ip_tunnel_get_mode (s_ip_tunnel) == NM_IP_TUNNEL_MODE_IPIP6 ? IPPROTO_IPIP : IPPROTO_IPV6; r = nm_platform_link_ip6tnl_add (nm_device_get_platform (device), iface, &lnk_ip6tnl, out_plink); } if (r < 0) { g_set_error (error, NM_DEVICE_ERROR, NM_DEVICE_ERROR_CREATION_FAILED, "Failed to create IPv6 tunnel interface '%s' for '%s': %s", iface, nm_connection_get_id (connection), nm_strerror (r)); return FALSE; } break; default: g_set_error (error, NM_DEVICE_ERROR, NM_DEVICE_ERROR_CREATION_FAILED, "Failed to create IP tunnel interface '%s' for '%s': mode %d not supported", iface, nm_connection_get_id (connection), (int) nm_setting_ip_tunnel_get_mode (s_ip_tunnel)); return FALSE; } return TRUE; } static guint32 get_configured_mtu (NMDevice *device, NMDeviceMtuSource *out_source) { return nm_device_get_configured_mtu_from_connection (device, NM_TYPE_SETTING_IP_TUNNEL, out_source); } static NMDeviceCapabilities get_generic_capabilities (NMDevice *device) { return NM_DEVICE_CAP_IS_SOFTWARE; } static void unrealize_notify (NMDevice *device) { NM_DEVICE_CLASS (nm_device_ip_tunnel_parent_class)->unrealize_notify (device); update_properties_from_ifindex (device, 0); } static gboolean can_reapply_change (NMDevice *device, const char *setting_name, NMSetting *s_old, NMSetting *s_new, GHashTable *diffs, GError **error) { NMDeviceClass *device_class; /* Only handle ip-tunnel setting here, delegate other settings to parent class */ if (nm_streq (setting_name, NM_SETTING_IP_TUNNEL_SETTING_NAME)) { return nm_device_hash_check_invalid_keys (diffs, NM_SETTING_IP_TUNNEL_SETTING_NAME, error, NM_SETTING_IP_TUNNEL_MTU); /* reapplied with IP config */ } device_class = NM_DEVICE_CLASS (nm_device_ip_tunnel_parent_class); return device_class->can_reapply_change (device, setting_name, s_old, s_new, diffs, error); } /*****************************************************************************/ static void get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) { NMDeviceIPTunnelPrivate *priv = NM_DEVICE_IP_TUNNEL_GET_PRIVATE ((NMDeviceIPTunnel *) object); switch (prop_id) { case PROP_MODE: g_value_set_uint (value, priv->mode); break; case PROP_LOCAL: g_value_set_string (value, priv->local); break; case PROP_REMOTE: g_value_set_string (value, priv->remote); break; case PROP_TTL: g_value_set_uchar (value, priv->ttl); break; case PROP_TOS: g_value_set_uchar (value, priv->tos); break; case PROP_PATH_MTU_DISCOVERY: g_value_set_boolean (value, priv->path_mtu_discovery); break; case PROP_INPUT_KEY: g_value_set_string (value, priv->input_key); break; case PROP_OUTPUT_KEY: g_value_set_string (value, priv->output_key); break; case PROP_ENCAPSULATION_LIMIT: g_value_set_uchar (value, priv->encap_limit); break; case PROP_FLOW_LABEL: g_value_set_uint (value, priv->flow_label); break; case PROP_FLAGS: g_value_set_uint (value, priv->flags); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec) { NMDeviceIPTunnelPrivate *priv = NM_DEVICE_IP_TUNNEL_GET_PRIVATE ((NMDeviceIPTunnel *) object); switch (prop_id) { case PROP_MODE: priv->mode = g_value_get_uint (value); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); } } /*****************************************************************************/ static void nm_device_ip_tunnel_init (NMDeviceIPTunnel *self) { } static void constructed (GObject *object) { NMDeviceIPTunnelPrivate *priv = NM_DEVICE_IP_TUNNEL_GET_PRIVATE ((NMDeviceIPTunnel *) object); if (NM_IN_SET (priv->mode, NM_IP_TUNNEL_MODE_IPIP6, NM_IP_TUNNEL_MODE_IP6IP6, NM_IP_TUNNEL_MODE_IP6GRE, NM_IP_TUNNEL_MODE_IP6GRETAP)) priv->addr_family = AF_INET6; else priv->addr_family = AF_INET; G_OBJECT_CLASS (nm_device_ip_tunnel_parent_class)->constructed (object); } static void dispose (GObject *object) { NMDeviceIPTunnel *self = NM_DEVICE_IP_TUNNEL (object); NMDeviceIPTunnelPrivate *priv = NM_DEVICE_IP_TUNNEL_GET_PRIVATE (self); g_clear_pointer (&priv->local, g_free); g_clear_pointer (&priv->remote, g_free); g_clear_pointer (&priv->input_key, g_free); g_clear_pointer (&priv->output_key, g_free); G_OBJECT_CLASS (nm_device_ip_tunnel_parent_class)->dispose (object); } static const NMDBusInterfaceInfoExtended interface_info_device_ip_tunnel = { .parent = NM_DEFINE_GDBUS_INTERFACE_INFO_INIT ( NM_DBUS_INTERFACE_DEVICE_IP_TUNNEL, .signals = NM_DEFINE_GDBUS_SIGNAL_INFOS ( &nm_signal_info_property_changed_legacy, ), .properties = NM_DEFINE_GDBUS_PROPERTY_INFOS ( NM_DEFINE_DBUS_PROPERTY_INFO_EXTENDED_READABLE_L ("Mode", "u", NM_DEVICE_IP_TUNNEL_MODE), NM_DEFINE_DBUS_PROPERTY_INFO_EXTENDED_READABLE_L ("Parent", "o", NM_DEVICE_PARENT), NM_DEFINE_DBUS_PROPERTY_INFO_EXTENDED_READABLE_L ("Local", "s", NM_DEVICE_IP_TUNNEL_LOCAL), NM_DEFINE_DBUS_PROPERTY_INFO_EXTENDED_READABLE_L ("Remote", "s", NM_DEVICE_IP_TUNNEL_REMOTE), NM_DEFINE_DBUS_PROPERTY_INFO_EXTENDED_READABLE_L ("Ttl", "y", NM_DEVICE_IP_TUNNEL_TTL), NM_DEFINE_DBUS_PROPERTY_INFO_EXTENDED_READABLE_L ("Tos", "y", NM_DEVICE_IP_TUNNEL_TOS), NM_DEFINE_DBUS_PROPERTY_INFO_EXTENDED_READABLE_L ("PathMtuDiscovery", "b", NM_DEVICE_IP_TUNNEL_PATH_MTU_DISCOVERY), NM_DEFINE_DBUS_PROPERTY_INFO_EXTENDED_READABLE_L ("InputKey", "s", NM_DEVICE_IP_TUNNEL_INPUT_KEY), NM_DEFINE_DBUS_PROPERTY_INFO_EXTENDED_READABLE_L ("OutputKey", "s", NM_DEVICE_IP_TUNNEL_OUTPUT_KEY), NM_DEFINE_DBUS_PROPERTY_INFO_EXTENDED_READABLE_L ("EncapsulationLimit", "y", NM_DEVICE_IP_TUNNEL_ENCAPSULATION_LIMIT), NM_DEFINE_DBUS_PROPERTY_INFO_EXTENDED_READABLE_L ("FlowLabel", "u", NM_DEVICE_IP_TUNNEL_FLOW_LABEL), NM_DEFINE_DBUS_PROPERTY_INFO_EXTENDED_READABLE_L ("Flags", "u", NM_DEVICE_IP_TUNNEL_FLAGS), ), ), .legacy_property_changed = TRUE, }; static void nm_device_ip_tunnel_class_init (NMDeviceIPTunnelClass *klass) { GObjectClass *object_class = G_OBJECT_CLASS (klass); NMDBusObjectClass *dbus_object_class = NM_DBUS_OBJECT_CLASS (klass); NMDeviceClass *device_class = NM_DEVICE_CLASS (klass); object_class->constructed = constructed; object_class->dispose = dispose; object_class->get_property = get_property; object_class->set_property = set_property; dbus_object_class->interface_infos = NM_DBUS_INTERFACE_INFOS (&interface_info_device_ip_tunnel); device_class->connection_type_supported = NM_SETTING_IP_TUNNEL_SETTING_NAME; device_class->connection_type_check_compatible = NM_SETTING_IP_TUNNEL_SETTING_NAME; device_class->link_types = NM_DEVICE_DEFINE_LINK_TYPES (NM_LINK_TYPE_GRE, NM_LINK_TYPE_GRETAP, NM_LINK_TYPE_IP6TNL, NM_LINK_TYPE_IP6GRE, NM_LINK_TYPE_IP6GRETAP, NM_LINK_TYPE_IPIP, NM_LINK_TYPE_SIT); device_class->act_stage1_prepare_set_hwaddr_ethernet = TRUE; device_class->link_changed = link_changed; device_class->can_reapply_change = can_reapply_change; device_class->complete_connection = complete_connection; device_class->update_connection = update_connection; device_class->check_connection_compatible = check_connection_compatible; device_class->create_and_realize = create_and_realize; device_class->get_generic_capabilities = get_generic_capabilities; device_class->get_configured_mtu = get_configured_mtu; device_class->unrealize_notify = unrealize_notify; obj_properties[PROP_MODE] = g_param_spec_uint (NM_DEVICE_IP_TUNNEL_MODE, "", "", 0, G_MAXUINT, 0, G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS); obj_properties[PROP_LOCAL] = g_param_spec_string (NM_DEVICE_IP_TUNNEL_LOCAL, "", "", NULL, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS); obj_properties[PROP_REMOTE] = g_param_spec_string (NM_DEVICE_IP_TUNNEL_REMOTE, "", "", NULL, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS); obj_properties[PROP_TTL] = g_param_spec_uchar (NM_DEVICE_IP_TUNNEL_TTL, "", "", 0, 255, 0, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS); obj_properties[PROP_TOS] = g_param_spec_uchar (NM_DEVICE_IP_TUNNEL_TOS, "", "", 0, 255, 0, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS); obj_properties[PROP_PATH_MTU_DISCOVERY] = g_param_spec_boolean (NM_DEVICE_IP_TUNNEL_PATH_MTU_DISCOVERY, "", "", FALSE, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS); obj_properties[PROP_INPUT_KEY] = g_param_spec_string (NM_DEVICE_IP_TUNNEL_INPUT_KEY, "", "", NULL, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS); obj_properties[PROP_OUTPUT_KEY] = g_param_spec_string (NM_DEVICE_IP_TUNNEL_OUTPUT_KEY, "", "", NULL, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS); obj_properties[PROP_ENCAPSULATION_LIMIT] = g_param_spec_uchar (NM_DEVICE_IP_TUNNEL_ENCAPSULATION_LIMIT, "", "", 0, 255, 0, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS); obj_properties[PROP_FLOW_LABEL] = g_param_spec_uint (NM_DEVICE_IP_TUNNEL_FLOW_LABEL, "", "", 0, (1 << 20) - 1, 0, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS); obj_properties[PROP_FLAGS] = g_param_spec_uint (NM_DEVICE_IP_TUNNEL_FLAGS, "", "", 0, G_MAXUINT32, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS); g_object_class_install_properties (object_class, _PROPERTY_ENUMS_LAST, obj_properties); } /*****************************************************************************/ #define NM_TYPE_IP_TUNNEL_DEVICE_FACTORY (nm_ip_tunnel_device_factory_get_type ()) #define NM_IP_TUNNEL_DEVICE_FACTORY(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), NM_TYPE_IP_TUNNEL_DEVICE_FACTORY, NMIPTunnelDeviceFactory)) static NMDevice * create_device (NMDeviceFactory *factory, const char *iface, const NMPlatformLink *plink, NMConnection *connection, gboolean *out_ignore) { NMSettingIPTunnel *s_ip_tunnel; NMIPTunnelMode mode; NMLinkType link_type; if (connection) { s_ip_tunnel = nm_connection_get_setting_ip_tunnel (connection); mode = nm_setting_ip_tunnel_get_mode (s_ip_tunnel); link_type = tunnel_mode_to_link_type (mode); } else { link_type = plink->type; mode = platform_link_to_tunnel_mode (plink); } if (mode == NM_IP_TUNNEL_MODE_UNKNOWN || link_type == NM_LINK_TYPE_UNKNOWN) return NULL; return (NMDevice *) g_object_new (NM_TYPE_DEVICE_IP_TUNNEL, NM_DEVICE_IFACE, iface, NM_DEVICE_TYPE_DESC, "IPTunnel", NM_DEVICE_DEVICE_TYPE, NM_DEVICE_TYPE_IP_TUNNEL, NM_DEVICE_LINK_TYPE, link_type, NM_DEVICE_IP_TUNNEL_MODE, mode, NULL); } static const char * get_connection_parent (NMDeviceFactory *factory, NMConnection *connection) { NMSettingIPTunnel *s_ip_tunnel; g_return_val_if_fail (nm_connection_is_type (connection, NM_SETTING_IP_TUNNEL_SETTING_NAME), NULL); s_ip_tunnel = nm_connection_get_setting_ip_tunnel (connection); g_assert (s_ip_tunnel); return nm_setting_ip_tunnel_get_parent (s_ip_tunnel); } static char * get_connection_iface (NMDeviceFactory *factory, NMConnection *connection, const char *parent_iface) { const char *ifname; NMSettingIPTunnel *s_ip_tunnel; g_return_val_if_fail (nm_connection_is_type (connection, NM_SETTING_IP_TUNNEL_SETTING_NAME), NULL); s_ip_tunnel = nm_connection_get_setting_ip_tunnel (connection); g_assert (s_ip_tunnel); if (nm_setting_ip_tunnel_get_parent (s_ip_tunnel) && !parent_iface) return NULL; ifname = nm_connection_get_interface_name (connection); return g_strdup (ifname); } NM_DEVICE_FACTORY_DEFINE_INTERNAL (IP_TUNNEL, IPTunnel, ip_tunnel, NM_DEVICE_FACTORY_DECLARE_LINK_TYPES (NM_LINK_TYPE_GRE, NM_LINK_TYPE_GRETAP, NM_LINK_TYPE_SIT, NM_LINK_TYPE_IPIP, NM_LINK_TYPE_IP6TNL, NM_LINK_TYPE_IP6GRE, NM_LINK_TYPE_IP6GRETAP) NM_DEVICE_FACTORY_DECLARE_SETTING_TYPES (NM_SETTING_IP_TUNNEL_SETTING_NAME), factory_class->create_device = create_device; factory_class->get_connection_parent = get_connection_parent; factory_class->get_connection_iface = get_connection_iface; );