/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */ /* NetworkManager -- Network link manager * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * * Copyright (C) 2005 - 2013 Red Hat, Inc. * Copyright (C) 2006 - 2008 Novell, Inc. */ #include "config.h" #include #include #include "nm-default.h" #include "nm-ip6-config.h" #include "nm-utils.h" #include "nm-platform.h" #include "nm-route-manager.h" #include "nm-core-internal.h" #include "NetworkManagerUtils.h" #include "nm-macros-internal.h" #include "nmdbus-ip6-config.h" G_DEFINE_TYPE (NMIP6Config, nm_ip6_config, NM_TYPE_EXPORTED_OBJECT) #define NM_IP6_CONFIG_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), NM_TYPE_IP6_CONFIG, NMIP6ConfigPrivate)) typedef struct { gboolean never_default; struct in6_addr gateway; GArray *addresses; GArray *routes; GArray *nameservers; GPtrArray *domains; GPtrArray *searches; GPtrArray *dns_options; guint32 mss; int ifindex; gint64 route_metric; } NMIP6ConfigPrivate; enum { PROP_0, PROP_IFINDEX, PROP_ADDRESS_DATA, PROP_ADDRESSES, PROP_ROUTE_DATA, PROP_ROUTES, PROP_GATEWAY, PROP_NAMESERVERS, PROP_DOMAINS, PROP_SEARCHES, PROP_DNS_OPTIONS, LAST_PROP }; static GParamSpec *obj_properties[LAST_PROP] = { NULL, }; #define _NOTIFY(config, prop) G_STMT_START { g_object_notify_by_pspec (G_OBJECT (config), obj_properties[prop]); } G_STMT_END NMIP6Config * nm_ip6_config_new (int ifindex) { g_return_val_if_fail (ifindex >= -1, NULL); return (NMIP6Config *) g_object_new (NM_TYPE_IP6_CONFIG, NM_IP6_CONFIG_IFINDEX, ifindex, NULL); } int nm_ip6_config_get_ifindex (const NMIP6Config *config) { return NM_IP6_CONFIG_GET_PRIVATE (config)->ifindex; } /******************************************************************/ static gboolean same_prefix (const struct in6_addr *address1, const struct in6_addr *address2, int plen) { const guint8 *bytes1 = (const guint8 *) address1; const guint8 *bytes2 = (const guint8 *) address2; int nbytes = plen / 8; int nbits = plen % 8; int masked1 = bytes1[nbytes] >> (8 - nbits); int masked2 = bytes2[nbytes] >> (8 - nbits); if (nbytes && memcmp (bytes1, bytes2, nbytes)) return FALSE; return masked1 == masked2; } /******************************************************************/ /** * nm_ip6_config_capture_resolv_conf(): * @nameservers: array of struct in6_addr * @rc_contents: the contents of a resolv.conf or %NULL to read /etc/resolv.conf * * Reads all resolv.conf IPv6 nameservers and adds them to @nameservers. * * Returns: %TRUE if nameservers were added, %FALSE if @nameservers is unchanged */ gboolean nm_ip6_config_capture_resolv_conf (GArray *nameservers, GPtrArray *dns_options, const char *rc_contents) { GPtrArray *read_ns, *read_options; guint i, j; gboolean changed = FALSE; g_return_val_if_fail (nameservers != NULL, FALSE); read_ns = nm_utils_read_resolv_conf_nameservers (rc_contents); if (!read_ns) return FALSE; for (i = 0; i < read_ns->len; i++) { const char *s = g_ptr_array_index (read_ns, i); struct in6_addr ns = IN6ADDR_ANY_INIT; if (!inet_pton (AF_INET6, s, (void *) &ns) || IN6_IS_ADDR_UNSPECIFIED (&ns)) continue; /* Ignore duplicates */ for (j = 0; j < nameservers->len; j++) { struct in6_addr *t = &g_array_index (nameservers, struct in6_addr, j); if (IN6_ARE_ADDR_EQUAL (t, &ns)) break; } if (j == nameservers->len) { g_array_append_val (nameservers, ns); changed = TRUE; } } g_ptr_array_unref (read_ns); if (dns_options) { read_options = nm_utils_read_resolv_conf_dns_options (rc_contents); if (!read_options) return changed; for (i = 0; i < read_options->len; i++) { const char *s = g_ptr_array_index (read_options, i); if (_nm_utils_dns_option_validate (s, NULL, NULL, TRUE, _nm_utils_dns_option_descs) && _nm_utils_dns_option_find_idx (dns_options, s) < 0) { g_ptr_array_add (dns_options, g_strdup (s)); changed = TRUE; } } g_ptr_array_unref (read_options); } return changed; } static gboolean addresses_are_duplicate (const NMPlatformIP6Address *a, const NMPlatformIP6Address *b) { return IN6_ARE_ADDR_EQUAL (&a->address, &b->address); } static gboolean routes_are_duplicate (const NMPlatformIP6Route *a, const NMPlatformIP6Route *b, gboolean consider_gateway_and_metric) { return IN6_ARE_ADDR_EQUAL (&a->network, &b->network) && a->plen == b->plen && ( !consider_gateway_and_metric || ( IN6_ARE_ADDR_EQUAL (&a->gateway, &b->gateway) && nm_utils_ip6_route_metric_normalize (a->metric) == nm_utils_ip6_route_metric_normalize (b->metric))); } static gint _addresses_sort_cmp_get_prio (const struct in6_addr *addr) { if (IN6_IS_ADDR_V4MAPPED (addr)) return 0; if (IN6_IS_ADDR_V4COMPAT (addr)) return 1; if (IN6_IS_ADDR_UNSPECIFIED (addr)) return 2; if (IN6_IS_ADDR_LOOPBACK (addr)) return 3; if (IN6_IS_ADDR_LINKLOCAL (addr)) return 4; if (IN6_IS_ADDR_SITELOCAL (addr)) return 5; return 6; } static gint _addresses_sort_cmp (gconstpointer a, gconstpointer b, gpointer user_data) { gint p1, p2, c; gboolean perm1, perm2, tent1, tent2; gboolean ipv6_privacy1, ipv6_privacy2; const NMPlatformIP6Address *a1 = a, *a2 = b; /* tentative addresses are always sorted back... */ /* sort tentative addresses after non-tentative. */ tent1 = (a1->flags & IFA_F_TENTATIVE); tent2 = (a2->flags & IFA_F_TENTATIVE); if (tent1 != tent2) return tent1 ? 1 : -1; /* Sort by address type. For example link local will * be sorted *after* site local or global. */ p1 = _addresses_sort_cmp_get_prio (&a1->address); p2 = _addresses_sort_cmp_get_prio (&a2->address); if (p1 != p2) return p1 > p2 ? -1 : 1; ipv6_privacy1 = !!(a1->flags & (IFA_F_MANAGETEMPADDR | IFA_F_TEMPORARY)); ipv6_privacy2 = !!(a2->flags & (IFA_F_MANAGETEMPADDR | IFA_F_TEMPORARY)); if (ipv6_privacy1 || ipv6_privacy2) { gboolean prefer_temp = ((NMSettingIP6ConfigPrivacy) GPOINTER_TO_INT (user_data)) == NM_SETTING_IP6_CONFIG_PRIVACY_PREFER_TEMP_ADDR; gboolean public1 = TRUE, public2 = TRUE; if (ipv6_privacy1) { if (a1->flags & IFA_F_TEMPORARY) public1 = prefer_temp; else public1 = !prefer_temp; } if (ipv6_privacy2) { if (a2->flags & IFA_F_TEMPORARY) public2 = prefer_temp; else public2 = !prefer_temp; } if (public1 != public2) return public1 ? -1 : 1; } /* Sort the addresses based on their source. */ if (a1->source != a2->source) return a1->source > a2->source ? -1 : 1; /* sort permanent addresses before non-permanent. */ perm1 = (a1->flags & IFA_F_PERMANENT); perm2 = (a2->flags & IFA_F_PERMANENT); if (perm1 != perm2) return perm1 ? -1 : 1; /* finally sort addresses lexically */ c = memcmp (&a1->address, &a2->address, sizeof (a2->address)); return c != 0 ? c : memcmp (a1, a2, sizeof (*a1)); } gboolean nm_ip6_config_addresses_sort (NMIP6Config *self, NMSettingIP6ConfigPrivacy use_temporary) { NMIP6ConfigPrivate *priv; size_t data_len = 0; char *data_pre = NULL; gboolean changed; g_return_val_if_fail (NM_IS_IP6_CONFIG (self), FALSE); priv = NM_IP6_CONFIG_GET_PRIVATE (self); if (priv->addresses->len > 1) { data_len = priv->addresses->len * g_array_get_element_size (priv->addresses); data_pre = g_new (char, data_len); memcpy (data_pre, priv->addresses->data, data_len); g_array_sort_with_data (priv->addresses, _addresses_sort_cmp, GINT_TO_POINTER (use_temporary)); changed = memcmp (data_pre, priv->addresses->data, data_len) != 0; g_free (data_pre); if (changed) { _NOTIFY (self, PROP_ADDRESS_DATA); _NOTIFY (self, PROP_ADDRESSES); return TRUE; } } return FALSE; } NMIP6Config * nm_ip6_config_capture (int ifindex, gboolean capture_resolv_conf, NMSettingIP6ConfigPrivacy use_temporary) { NMIP6Config *config; NMIP6ConfigPrivate *priv; guint i; guint32 lowest_metric = G_MAXUINT32; struct in6_addr old_gateway = IN6ADDR_ANY_INIT; gboolean has_gateway = FALSE; gboolean notify_nameservers = FALSE; /* Slaves have no IP configuration */ if (nm_platform_link_get_master (NM_PLATFORM_GET, ifindex) > 0) return NULL; config = nm_ip6_config_new (ifindex); priv = NM_IP6_CONFIG_GET_PRIVATE (config); g_array_unref (priv->addresses); g_array_unref (priv->routes); priv->addresses = nm_platform_ip6_address_get_all (NM_PLATFORM_GET, ifindex); priv->routes = nm_platform_ip6_route_get_all (NM_PLATFORM_GET, ifindex, NM_PLATFORM_GET_ROUTE_FLAGS_WITH_DEFAULT | NM_PLATFORM_GET_ROUTE_FLAGS_WITH_NON_DEFAULT); /* Extract gateway from default route */ old_gateway = priv->gateway; for (i = 0; i < priv->routes->len; ) { const NMPlatformIP6Route *route = &g_array_index (priv->routes, NMPlatformIP6Route, i); if (NM_PLATFORM_IP_ROUTE_IS_DEFAULT (route)) { if (route->metric < lowest_metric) { priv->gateway = route->gateway; lowest_metric = route->metric; } has_gateway = TRUE; /* Remove the default route from the list */ g_array_remove_index_fast (priv->routes, i); continue; } i++; } /* we detect the route metric based on the default route. All non-default * routes have their route metrics explicitly set. */ priv->route_metric = has_gateway ? (gint64) lowest_metric : (gint64) -1; /* If there is a host route to the gateway, ignore that route. It is * automatically added by NetworkManager when needed. */ if (has_gateway) { for (i = 0; i < priv->routes->len; i++) { const NMPlatformIP6Route *route = &g_array_index (priv->routes, NMPlatformIP6Route, i); if ( route->plen == 128 && IN6_ARE_ADDR_EQUAL (&route->network, &priv->gateway) && IN6_IS_ADDR_UNSPECIFIED (&route->gateway)) { g_array_remove_index (priv->routes, i); i--; } } } /* If the interface has the default route, and has IPv6 addresses, capture * nameservers from /etc/resolv.conf. */ if (priv->addresses->len && has_gateway && capture_resolv_conf) notify_nameservers = nm_ip6_config_capture_resolv_conf (priv->nameservers, priv->dns_options, NULL); g_array_sort_with_data (priv->addresses, _addresses_sort_cmp, GINT_TO_POINTER (use_temporary)); /* actually, nobody should be connected to the signal, just to be sure, notify */ if (notify_nameservers) _NOTIFY (config, PROP_NAMESERVERS); _NOTIFY (config, PROP_ADDRESS_DATA); _NOTIFY (config, PROP_ADDRESSES); _NOTIFY (config, PROP_ROUTE_DATA); _NOTIFY (config, PROP_ROUTES); if (!IN6_ARE_ADDR_EQUAL (&priv->gateway, &old_gateway)) _NOTIFY (config, PROP_GATEWAY); return config; } gboolean nm_ip6_config_commit (const NMIP6Config *config, int ifindex, gboolean routes_full_sync) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config); int i; gboolean success; g_return_val_if_fail (ifindex > 0, FALSE); g_return_val_if_fail (config != NULL, FALSE); /* Addresses */ nm_platform_ip6_address_sync (NM_PLATFORM_GET, ifindex, priv->addresses, TRUE); /* Routes */ { int count = nm_ip6_config_get_num_routes (config); GArray *routes = g_array_sized_new (FALSE, FALSE, sizeof (NMPlatformIP6Route), count); const NMPlatformIP6Route *route; for (i = 0; i < count; i++) { route = nm_ip6_config_get_route (config, i); /* Don't add the route if it's more specific than one of the subnets * the device already has an IP address on. */ if ( IN6_IS_ADDR_UNSPECIFIED (&route->gateway) && nm_ip6_config_destination_is_direct (config, &route->network, route->plen)) continue; g_array_append_vals (routes, route, 1); } success = nm_route_manager_ip6_route_sync (nm_route_manager_get (), ifindex, routes, TRUE, routes_full_sync); g_array_unref (routes); } return success; } void nm_ip6_config_merge_setting (NMIP6Config *config, NMSettingIPConfig *setting, guint32 default_route_metric) { NMIP6ConfigPrivate *priv; guint naddresses, nroutes, nnameservers, nsearches; const char *gateway_str; int i; if (!setting) return; g_return_if_fail (NM_IS_SETTING_IP6_CONFIG (setting)); priv = NM_IP6_CONFIG_GET_PRIVATE (config); naddresses = nm_setting_ip_config_get_num_addresses (setting); nroutes = nm_setting_ip_config_get_num_routes (setting); nnameservers = nm_setting_ip_config_get_num_dns (setting); nsearches = nm_setting_ip_config_get_num_dns_searches (setting); g_object_freeze_notify (G_OBJECT (config)); /* Gateway */ if (nm_setting_ip_config_get_never_default (setting)) nm_ip6_config_set_never_default (config, TRUE); else if (nm_setting_ip_config_get_ignore_auto_routes (setting)) nm_ip6_config_set_never_default (config, FALSE); gateway_str = nm_setting_ip_config_get_gateway (setting); if (gateway_str) { struct in6_addr gateway; inet_pton (AF_INET6, gateway_str, &gateway); nm_ip6_config_set_gateway (config, &gateway); } if (priv->route_metric == -1) priv->route_metric = nm_setting_ip_config_get_route_metric (setting); /* Addresses */ for (i = 0; i < naddresses; i++) { NMIPAddress *s_addr = nm_setting_ip_config_get_address (setting, i); NMPlatformIP6Address address; memset (&address, 0, sizeof (address)); nm_ip_address_get_address_binary (s_addr, &address.address); address.plen = nm_ip_address_get_prefix (s_addr); address.lifetime = NM_PLATFORM_LIFETIME_PERMANENT; address.preferred = NM_PLATFORM_LIFETIME_PERMANENT; address.source = NM_IP_CONFIG_SOURCE_USER; nm_ip6_config_add_address (config, &address); } /* Routes */ if (nm_setting_ip_config_get_ignore_auto_routes (setting)) nm_ip6_config_reset_routes (config); for (i = 0; i < nroutes; i++) { NMIPRoute *s_route = nm_setting_ip_config_get_route (setting, i); NMPlatformIP6Route route; memset (&route, 0, sizeof (route)); nm_ip_route_get_dest_binary (s_route, &route.network); route.plen = nm_ip_route_get_prefix (s_route); nm_ip_route_get_next_hop_binary (s_route, &route.gateway); if (nm_ip_route_get_metric (s_route) == -1) route.metric = default_route_metric; else route.metric = nm_ip_route_get_metric (s_route); route.source = NM_IP_CONFIG_SOURCE_USER; g_assert (route.plen > 0); nm_ip6_config_add_route (config, &route); } /* DNS */ if (nm_setting_ip_config_get_ignore_auto_dns (setting)) { nm_ip6_config_reset_nameservers (config); nm_ip6_config_reset_domains (config); nm_ip6_config_reset_searches (config); } for (i = 0; i < nnameservers; i++) { struct in6_addr ip; if (inet_pton (AF_INET6, nm_setting_ip_config_get_dns (setting, i), &ip) == 1) nm_ip6_config_add_nameserver (config, &ip); } for (i = 0; i < nsearches; i++) nm_ip6_config_add_search (config, nm_setting_ip_config_get_dns_search (setting, i)); i = 0; while ((i = nm_setting_ip_config_next_valid_dns_option (setting, i)) >= 0) { nm_ip6_config_add_dns_option (config, nm_setting_ip_config_get_dns_option (setting, i)); i++; } g_object_thaw_notify (G_OBJECT (config)); } NMSetting * nm_ip6_config_create_setting (const NMIP6Config *config) { NMSettingIPConfig *s_ip6; const struct in6_addr *gateway; guint naddresses, nroutes, nnameservers, nsearches, noptions; const char *method = NULL; int i; gint64 route_metric; s_ip6 = NM_SETTING_IP_CONFIG (nm_setting_ip6_config_new ()); if (!config) { g_object_set (s_ip6, NM_SETTING_IP_CONFIG_METHOD, NM_SETTING_IP6_CONFIG_METHOD_IGNORE, NULL); return NM_SETTING (s_ip6); } gateway = nm_ip6_config_get_gateway (config); naddresses = nm_ip6_config_get_num_addresses (config); nroutes = nm_ip6_config_get_num_routes (config); nnameservers = nm_ip6_config_get_num_nameservers (config); nsearches = nm_ip6_config_get_num_searches (config); noptions = nm_ip6_config_get_num_dns_options (config); route_metric = nm_ip6_config_get_route_metric (config); /* Addresses */ for (i = 0; i < naddresses; i++) { const NMPlatformIP6Address *address = nm_ip6_config_get_address (config, i); NMIPAddress *s_addr; /* Ignore link-local address. */ if (IN6_IS_ADDR_LINKLOCAL (&address->address)) { if (!method) method = NM_SETTING_IP6_CONFIG_METHOD_LINK_LOCAL; continue; } /* Detect dynamic address */ if (address->lifetime != NM_PLATFORM_LIFETIME_PERMANENT) { method = NM_SETTING_IP6_CONFIG_METHOD_AUTO; continue; } /* Static address found. */ if (!method || strcmp (method, NM_SETTING_IP6_CONFIG_METHOD_LINK_LOCAL) == 0) method = NM_SETTING_IP6_CONFIG_METHOD_MANUAL; s_addr = nm_ip_address_new_binary (AF_INET6, &address->address, address->plen, NULL); nm_setting_ip_config_add_address (s_ip6, s_addr); nm_ip_address_unref (s_addr); } /* Gateway */ if ( gateway && nm_setting_ip_config_get_num_addresses (s_ip6) > 0) { g_object_set (s_ip6, NM_SETTING_IP_CONFIG_GATEWAY, nm_utils_inet6_ntop (gateway, NULL), NULL); } /* Use 'ignore' if the method wasn't previously set */ if (!method) method = NM_SETTING_IP6_CONFIG_METHOD_IGNORE; g_object_set (s_ip6, NM_SETTING_IP_CONFIG_METHOD, method, NM_SETTING_IP_CONFIG_ROUTE_METRIC, (gint64) route_metric, NULL); /* Routes */ for (i = 0; i < nroutes; i++) { const NMPlatformIP6Route *route = nm_ip6_config_get_route (config, i); NMIPRoute *s_route; /* Ignore link-local route. */ if (IN6_IS_ADDR_LINKLOCAL (&route->network)) continue; /* Ignore default route. */ if (!route->plen) continue; /* Ignore routes provided by external sources */ if (route->source != NM_IP_CONFIG_SOURCE_USER) continue; s_route = nm_ip_route_new_binary (AF_INET6, &route->network, route->plen, &route->gateway, route->metric, NULL); nm_setting_ip_config_add_route (s_ip6, s_route); nm_ip_route_unref (s_route); } /* DNS */ for (i = 0; i < nnameservers; i++) { const struct in6_addr *nameserver = nm_ip6_config_get_nameserver (config, i); nm_setting_ip_config_add_dns (s_ip6, nm_utils_inet6_ntop (nameserver, NULL)); } for (i = 0; i < nsearches; i++) { const char *search = nm_ip6_config_get_search (config, i); nm_setting_ip_config_add_dns_search (s_ip6, search); } for (i = 0; i < noptions; i++) { const char *option = nm_ip6_config_get_dns_option (config, i); nm_setting_ip_config_add_dns_option (s_ip6, option); } return NM_SETTING (s_ip6); } /******************************************************************/ void nm_ip6_config_merge (NMIP6Config *dst, const NMIP6Config *src, NMIPConfigMergeFlags merge_flags) { NMIP6ConfigPrivate *dst_priv, *src_priv; guint32 i; g_return_if_fail (src != NULL); g_return_if_fail (dst != NULL); dst_priv = NM_IP6_CONFIG_GET_PRIVATE (dst); src_priv = NM_IP6_CONFIG_GET_PRIVATE (src); g_object_freeze_notify (G_OBJECT (dst)); /* addresses */ for (i = 0; i < nm_ip6_config_get_num_addresses (src); i++) nm_ip6_config_add_address (dst, nm_ip6_config_get_address (src, i)); /* nameservers */ if (!NM_FLAGS_HAS (merge_flags, NM_IP_CONFIG_MERGE_NO_DNS)) { for (i = 0; i < nm_ip6_config_get_num_nameservers (src); i++) nm_ip6_config_add_nameserver (dst, nm_ip6_config_get_nameserver (src, i)); } /* default gateway */ if (nm_ip6_config_get_gateway (src)) nm_ip6_config_set_gateway (dst, nm_ip6_config_get_gateway (src)); /* routes */ if (!NM_FLAGS_HAS (merge_flags, NM_IP_CONFIG_MERGE_NO_ROUTES)) { for (i = 0; i < nm_ip6_config_get_num_routes (src); i++) nm_ip6_config_add_route (dst, nm_ip6_config_get_route (src, i)); } if (dst_priv->route_metric == -1) dst_priv->route_metric = src_priv->route_metric; else if (src_priv->route_metric != -1) dst_priv->route_metric = MIN (dst_priv->route_metric, src_priv->route_metric); /* domains */ if (!NM_FLAGS_HAS (merge_flags, NM_IP_CONFIG_MERGE_NO_DNS)) { for (i = 0; i < nm_ip6_config_get_num_domains (src); i++) nm_ip6_config_add_domain (dst, nm_ip6_config_get_domain (src, i)); } /* dns searches */ if (!NM_FLAGS_HAS (merge_flags, NM_IP_CONFIG_MERGE_NO_DNS)) { for (i = 0; i < nm_ip6_config_get_num_searches (src); i++) nm_ip6_config_add_search (dst, nm_ip6_config_get_search (src, i)); } /* dns options */ if (!NM_FLAGS_HAS (merge_flags, NM_IP_CONFIG_MERGE_NO_DNS)) { for (i = 0; i < nm_ip6_config_get_num_dns_options (src); i++) nm_ip6_config_add_dns_option (dst, nm_ip6_config_get_dns_option (src, i)); } if (nm_ip6_config_get_mss (src)) nm_ip6_config_set_mss (dst, nm_ip6_config_get_mss (src)); g_object_thaw_notify (G_OBJECT (dst)); } gboolean nm_ip6_config_destination_is_direct (const NMIP6Config *config, const struct in6_addr *network, int plen) { int num = nm_ip6_config_get_num_addresses (config); int i; for (i = 0; i < num; i++) { const NMPlatformIP6Address *item = nm_ip6_config_get_address (config, i); if (item->plen <= plen && same_prefix (&item->address, network, item->plen) && !(item->flags & IFA_F_NOPREFIXROUTE)) return TRUE; } return FALSE; } /*******************************************************************************/ static int _addresses_get_index (const NMIP6Config *self, const NMPlatformIP6Address *addr) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (self); guint i; for (i = 0; i < priv->addresses->len; i++) { const NMPlatformIP6Address *a = &g_array_index (priv->addresses, NMPlatformIP6Address, i); if (addresses_are_duplicate (a, addr)) return (int) i; } return -1; } static int _nameservers_get_index (const NMIP6Config *self, const struct in6_addr *ns) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (self); guint i; for (i = 0; i < priv->nameservers->len; i++) { const struct in6_addr *n = &g_array_index (priv->nameservers, struct in6_addr, i); if (IN6_ARE_ADDR_EQUAL (ns, n)) return (int) i; } return -1; } static int _routes_get_index (const NMIP6Config *self, const NMPlatformIP6Route *route) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (self); guint i; for (i = 0; i < priv->routes->len; i++) { const NMPlatformIP6Route *r = &g_array_index (priv->routes, NMPlatformIP6Route, i); if (routes_are_duplicate (route, r, FALSE)) return (int) i; } return -1; } static int _domains_get_index (const NMIP6Config *self, const char *domain) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (self); guint i; for (i = 0; i < priv->domains->len; i++) { const char *d = g_ptr_array_index (priv->domains, i); if (g_strcmp0 (domain, d) == 0) return (int) i; } return -1; } static int _searches_get_index (const NMIP6Config *self, const char *search) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (self); guint i; for (i = 0; i < priv->searches->len; i++) { const char *s = g_ptr_array_index (priv->searches, i); if (g_strcmp0 (search, s) == 0) return (int) i; } return -1; } static int _dns_options_get_index (const NMIP6Config *self, const char *option) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (self); guint i; for (i = 0; i < priv->dns_options->len; i++) { const char *s = g_ptr_array_index (priv->dns_options, i); if (g_strcmp0 (option, s) == 0) return (int) i; } return -1; } /*******************************************************************************/ /** * nm_ip6_config_subtract: * @dst: config from which to remove everything in @src * @src: config to remove from @dst * * Removes everything in @src from @dst. */ void nm_ip6_config_subtract (NMIP6Config *dst, const NMIP6Config *src) { guint i; gint idx; const struct in6_addr *dst_tmp, *src_tmp; g_return_if_fail (src != NULL); g_return_if_fail (dst != NULL); g_object_freeze_notify (G_OBJECT (dst)); /* addresses */ for (i = 0; i < nm_ip6_config_get_num_addresses (src); i++) { idx = _addresses_get_index (dst, nm_ip6_config_get_address (src, i)); if (idx >= 0) nm_ip6_config_del_address (dst, idx); } /* nameservers */ for (i = 0; i < nm_ip6_config_get_num_nameservers (src); i++) { idx = _nameservers_get_index (dst, nm_ip6_config_get_nameserver (src, i)); if (idx >= 0) nm_ip6_config_del_nameserver (dst, idx); } /* default gateway */ src_tmp = nm_ip6_config_get_gateway (src); dst_tmp = nm_ip6_config_get_gateway (dst); if (src_tmp && dst_tmp && IN6_ARE_ADDR_EQUAL (src_tmp, dst_tmp)) nm_ip6_config_set_gateway (dst, NULL); if (!nm_ip6_config_get_num_addresses (dst)) nm_ip6_config_set_gateway (dst, NULL); /* ignore route_metric */ /* routes */ for (i = 0; i < nm_ip6_config_get_num_routes (src); i++) { idx = _routes_get_index (dst, nm_ip6_config_get_route (src, i)); if (idx >= 0) nm_ip6_config_del_route (dst, idx); } /* domains */ for (i = 0; i < nm_ip6_config_get_num_domains (src); i++) { idx = _domains_get_index (dst, nm_ip6_config_get_domain (src, i)); if (idx >= 0) nm_ip6_config_del_domain (dst, idx); } /* dns searches */ for (i = 0; i < nm_ip6_config_get_num_searches (src); i++) { idx = _searches_get_index (dst, nm_ip6_config_get_search (src, i)); if (idx >= 0) nm_ip6_config_del_search (dst, idx); } /* dns options */ for (i = 0; i < nm_ip6_config_get_num_dns_options (src); i++) { idx = _dns_options_get_index (dst, nm_ip6_config_get_dns_option (src, i)); if (idx >= 0) nm_ip6_config_del_dns_option (dst, idx); } if (nm_ip6_config_get_mss (src) == nm_ip6_config_get_mss (dst)) nm_ip6_config_set_mss (dst, 0); g_object_thaw_notify (G_OBJECT (dst)); } void nm_ip6_config_intersect (NMIP6Config *dst, const NMIP6Config *src) { guint i; gint idx; const struct in6_addr *dst_tmp, *src_tmp; g_return_if_fail (src != NULL); g_return_if_fail (dst != NULL); g_object_freeze_notify (G_OBJECT (dst)); /* addresses */ for (i = 0; i < nm_ip6_config_get_num_addresses (dst); ) { idx = _addresses_get_index (src, nm_ip6_config_get_address (dst, i)); if (idx < 0) nm_ip6_config_del_address (dst, i); else i++; } /* ignore route_metric */ /* ignore nameservers */ /* default gateway */ dst_tmp = nm_ip6_config_get_gateway (dst); if (dst_tmp) { src_tmp = nm_ip6_config_get_gateway (src); if ( !nm_ip6_config_get_num_addresses (dst) || !src_tmp || !IN6_ARE_ADDR_EQUAL (src_tmp, dst_tmp)) nm_ip6_config_set_gateway (dst, NULL); } /* routes */ for (i = 0; i < nm_ip6_config_get_num_routes (dst); ) { idx = _routes_get_index (src, nm_ip6_config_get_route (dst, i)); if (idx < 0) nm_ip6_config_del_route (dst, i); else i++; } /* ignore domains */ /* ignore dns searches */ /* ignome dns options */ g_object_thaw_notify (G_OBJECT (dst)); } /** * nm_ip6_config_replace: * @dst: config which will be replaced with everything in @src * @src: config to copy over to @dst * @relevant_changes: return whether there are changes to the * destination object that are relevant. This is equal to * nm_ip6_config_equal() showing any difference. * * Replaces everything in @dst with @src so that the two configurations * contain the same content -- with the exception of the dbus path. * * Returns: whether the @dst instance changed in any way (including minor changes, * that are not signaled by the output parameter @relevant_changes). */ gboolean nm_ip6_config_replace (NMIP6Config *dst, const NMIP6Config *src, gboolean *relevant_changes) { #if NM_MORE_ASSERTS gboolean config_equal; #endif gboolean has_minor_changes = FALSE, has_relevant_changes = FALSE, are_equal; guint i, num; NMIP6ConfigPrivate *dst_priv, *src_priv; const NMPlatformIP6Address *dst_addr, *src_addr; const NMPlatformIP6Route *dst_route, *src_route; g_return_val_if_fail (src != NULL, FALSE); g_return_val_if_fail (dst != NULL, FALSE); g_return_val_if_fail (src != dst, FALSE); #if NM_MORE_ASSERTS config_equal = nm_ip6_config_equal (dst, src); #endif dst_priv = NM_IP6_CONFIG_GET_PRIVATE (dst); src_priv = NM_IP6_CONFIG_GET_PRIVATE (src); g_object_freeze_notify (G_OBJECT (dst)); /* ifindex */ if (src_priv->ifindex != dst_priv->ifindex) { dst_priv->ifindex = src_priv->ifindex; has_minor_changes = TRUE; } /* never_default */ if (src_priv->never_default != dst_priv->never_default) { dst_priv->never_default = src_priv->never_default; has_minor_changes = TRUE; } /* default gateway */ if (!IN6_ARE_ADDR_EQUAL (&src_priv->gateway, &dst_priv->gateway)) { nm_ip6_config_set_gateway (dst, &src_priv->gateway); has_relevant_changes = TRUE; } if (src_priv->route_metric != dst_priv->route_metric) { dst_priv->route_metric = src_priv->route_metric; has_minor_changes = TRUE; } /* addresses */ num = nm_ip6_config_get_num_addresses (src); are_equal = num == nm_ip6_config_get_num_addresses (dst); if (are_equal) { for (i = 0; i < num; i++ ) { if (nm_platform_ip6_address_cmp (src_addr = nm_ip6_config_get_address (src, i), dst_addr = nm_ip6_config_get_address (dst, i))) { are_equal = FALSE; if ( !addresses_are_duplicate (src_addr, dst_addr) || src_addr->plen != dst_addr->plen || !IN6_ARE_ADDR_EQUAL (nm_platform_ip6_address_get_peer (src_addr), nm_platform_ip6_address_get_peer (dst_addr))) { has_relevant_changes = TRUE; break; } } } } else has_relevant_changes = TRUE; if (!are_equal) { nm_ip6_config_reset_addresses (dst); for (i = 0; i < num; i++) nm_ip6_config_add_address (dst, nm_ip6_config_get_address (src, i)); has_minor_changes = TRUE; } /* routes */ num = nm_ip6_config_get_num_routes (src); are_equal = num == nm_ip6_config_get_num_routes (dst); if (are_equal) { for (i = 0; i < num; i++ ) { if (nm_platform_ip6_route_cmp (src_route = nm_ip6_config_get_route (src, i), dst_route = nm_ip6_config_get_route (dst, i))) { are_equal = FALSE; if (!routes_are_duplicate (src_route, dst_route, TRUE)) { has_relevant_changes = TRUE; break; } } } } else has_relevant_changes = TRUE; if (!are_equal) { nm_ip6_config_reset_routes (dst); for (i = 0; i < num; i++) nm_ip6_config_add_route (dst, nm_ip6_config_get_route (src, i)); has_minor_changes = TRUE; } /* nameservers */ num = nm_ip6_config_get_num_nameservers (src); are_equal = num == nm_ip6_config_get_num_nameservers (dst); if (are_equal) { for (i = 0; i < num; i++ ) { if (!IN6_ARE_ADDR_EQUAL (nm_ip6_config_get_nameserver (src, i), nm_ip6_config_get_nameserver (dst, i))) { are_equal = FALSE; break; } } } if (!are_equal) { nm_ip6_config_reset_nameservers (dst); for (i = 0; i < num; i++) nm_ip6_config_add_nameserver (dst, nm_ip6_config_get_nameserver (src, i)); has_relevant_changes = TRUE; } /* domains */ num = nm_ip6_config_get_num_domains (src); are_equal = num == nm_ip6_config_get_num_domains (dst); if (are_equal) { for (i = 0; i < num; i++ ) { if (g_strcmp0 (nm_ip6_config_get_domain (src, i), nm_ip6_config_get_domain (dst, i))) { are_equal = FALSE; break; } } } if (!are_equal) { nm_ip6_config_reset_domains (dst); for (i = 0; i < num; i++) nm_ip6_config_add_domain (dst, nm_ip6_config_get_domain (src, i)); has_relevant_changes = TRUE; } /* dns searches */ num = nm_ip6_config_get_num_searches (src); are_equal = num == nm_ip6_config_get_num_searches (dst); if (are_equal) { for (i = 0; i < num; i++ ) { if (g_strcmp0 (nm_ip6_config_get_search (src, i), nm_ip6_config_get_search (dst, i))) { are_equal = FALSE; break; } } } if (!are_equal) { nm_ip6_config_reset_searches (dst); for (i = 0; i < num; i++) nm_ip6_config_add_search (dst, nm_ip6_config_get_search (src, i)); has_relevant_changes = TRUE; } /* dns options */ num = nm_ip6_config_get_num_dns_options (src); are_equal = num == nm_ip6_config_get_num_dns_options (dst); if (are_equal) { for (i = 0; i < num; i++ ) { if (g_strcmp0 (nm_ip6_config_get_dns_option (src, i), nm_ip6_config_get_dns_option (dst, i))) { are_equal = FALSE; break; } } } if (!are_equal) { nm_ip6_config_reset_dns_options (dst); for (i = 0; i < num; i++) nm_ip6_config_add_dns_option (dst, nm_ip6_config_get_dns_option (src, i)); has_relevant_changes = TRUE; } /* mss */ if (src_priv->mss != dst_priv->mss) { nm_ip6_config_set_mss (dst, src_priv->mss); has_minor_changes = TRUE; } #if NM_MORE_ASSERTS /* config_equal does not compare *all* the fields, therefore, we might have has_minor_changes * regardless of config_equal. But config_equal must correspond to has_relevant_changes. */ nm_assert (config_equal == !has_relevant_changes); #endif g_object_thaw_notify (G_OBJECT (dst)); if (relevant_changes) *relevant_changes = has_relevant_changes; return has_relevant_changes || has_minor_changes; } void nm_ip6_config_dump (const NMIP6Config *config, const char *detail) { const struct in6_addr *tmp; guint32 i; const char *str; g_return_if_fail (config != NULL); g_message ("--------- NMIP6Config %p (%s)", config, detail); str = nm_exported_object_get_path (NM_EXPORTED_OBJECT (config)); if (str) g_message (" path: %s", str); /* addresses */ for (i = 0; i < nm_ip6_config_get_num_addresses (config); i++) g_message (" a: %s", nm_platform_ip6_address_to_string (nm_ip6_config_get_address (config, i), NULL, 0)); /* default gateway */ tmp = nm_ip6_config_get_gateway (config); if (tmp) g_message (" gw: %s", nm_utils_inet6_ntop (tmp, NULL)); /* nameservers */ for (i = 0; i < nm_ip6_config_get_num_nameservers (config); i++) { tmp = nm_ip6_config_get_nameserver (config, i); g_message (" ns: %s", nm_utils_inet6_ntop (tmp, NULL)); } /* routes */ for (i = 0; i < nm_ip6_config_get_num_routes (config); i++) g_message (" rt: %s", nm_platform_ip6_route_to_string (nm_ip6_config_get_route (config, i), NULL, 0)); /* domains */ for (i = 0; i < nm_ip6_config_get_num_domains (config); i++) g_message (" domain: %s", nm_ip6_config_get_domain (config, i)); /* dns searches */ for (i = 0; i < nm_ip6_config_get_num_searches (config); i++) g_message (" search: %s", nm_ip6_config_get_search (config, i)); /* dns options */ for (i = 0; i < nm_ip6_config_get_num_dns_options (config); i++) g_message (" dnsopt: %s", nm_ip6_config_get_dns_option (config, i)); g_message (" mss: %"G_GUINT32_FORMAT, nm_ip6_config_get_mss (config)); g_message (" n-dflt: %d", nm_ip6_config_get_never_default (config)); } /******************************************************************/ void nm_ip6_config_set_never_default (NMIP6Config *config, gboolean never_default) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config); priv->never_default = !!never_default; } gboolean nm_ip6_config_get_never_default (const NMIP6Config *config) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config); return priv->never_default; } void nm_ip6_config_set_gateway (NMIP6Config *config, const struct in6_addr *gateway) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config); if (gateway) { if (IN6_ARE_ADDR_EQUAL (&priv->gateway, gateway)) return; priv->gateway = *gateway; } else { if (IN6_IS_ADDR_UNSPECIFIED (&priv->gateway)) return; memset (&priv->gateway, 0, sizeof (priv->gateway)); } _NOTIFY (config, PROP_GATEWAY); } const struct in6_addr * nm_ip6_config_get_gateway (const NMIP6Config *config) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config); return IN6_IS_ADDR_UNSPECIFIED (&priv->gateway) ? NULL : &priv->gateway; } gint64 nm_ip6_config_get_route_metric (const NMIP6Config *config) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config); return priv->route_metric; } /******************************************************************/ void nm_ip6_config_reset_addresses (NMIP6Config *config) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config); if (priv->addresses->len != 0) { g_array_set_size (priv->addresses, 0); _NOTIFY (config, PROP_ADDRESS_DATA); _NOTIFY (config, PROP_ADDRESSES); } } /** * nm_ip6_config_add_address: * @config: the #NMIP6Config * @new: the new address to add to @config * * Adds the new address to @config. If an address with the same basic properties * (address, prefix) already exists in @config, it is overwritten with the * lifetime and preferred of @new. The source is also overwritten by the source * from @new if that source is higher priority. */ void nm_ip6_config_add_address (NMIP6Config *config, const NMPlatformIP6Address *new) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config); NMPlatformIP6Address item_old; int i; g_return_if_fail (new != NULL); for (i = 0; i < priv->addresses->len; i++ ) { NMPlatformIP6Address *item = &g_array_index (priv->addresses, NMPlatformIP6Address, i); if (addresses_are_duplicate (item, new)) { if (nm_platform_ip6_address_cmp (item, new) == 0) return; /* remember the old values. */ item_old = *item; /* Copy over old item to get new lifetime, timestamp, preferred */ *item = *new; /* But restore highest priority source */ item->source = MAX (item_old.source, new->source); /* for addresses that we read from the kernel, we keep the timestamps as defined * by the previous source (item_old). The reason is, that the other source configured the lifetimes * with "what should be" and the kernel values are "what turned out after configuring it". * * For other sources, the longer lifetime wins. */ if ( (new->source == NM_IP_CONFIG_SOURCE_KERNEL && new->source != item_old.source) || nm_platform_ip_address_cmp_expiry ((const NMPlatformIPAddress *) &item_old, (const NMPlatformIPAddress *) new) > 0) { item->timestamp = item_old.timestamp; item->lifetime = item_old.lifetime; item->preferred = item_old.preferred; } if (nm_platform_ip6_address_cmp (&item_old, item) == 0) return; goto NOTIFY; } } g_array_append_val (priv->addresses, *new); NOTIFY: _NOTIFY (config, PROP_ADDRESS_DATA); _NOTIFY (config, PROP_ADDRESSES); } void nm_ip6_config_del_address (NMIP6Config *config, guint i) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config); g_return_if_fail (i < priv->addresses->len); g_array_remove_index (priv->addresses, i); _NOTIFY (config, PROP_ADDRESS_DATA); _NOTIFY (config, PROP_ADDRESSES); } guint nm_ip6_config_get_num_addresses (const NMIP6Config *config) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config); return priv->addresses->len; } const NMPlatformIP6Address * nm_ip6_config_get_address (const NMIP6Config *config, guint i) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config); return &g_array_index (priv->addresses, NMPlatformIP6Address, i); } gboolean nm_ip6_config_address_exists (const NMIP6Config *config, const NMPlatformIP6Address *needle) { return _addresses_get_index (config, needle) >= 0; } /******************************************************************/ void nm_ip6_config_reset_routes (NMIP6Config *config) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config); if (priv->routes->len != 0) { g_array_set_size (priv->routes, 0); _NOTIFY (config, PROP_ROUTE_DATA); _NOTIFY (config, PROP_ROUTES); } } /** * nm_ip6_config_add_route: * @config: the #NMIP6Config * @new: the new route to add to @config * * Adds the new route to @config. If a route with the same basic properties * (network, prefix) already exists in @config, it is overwritten including the * gateway and metric of @new. The source is also overwritten by the source * from @new if that source is higher priority. */ void nm_ip6_config_add_route (NMIP6Config *config, const NMPlatformIP6Route *new) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config); NMIPConfigSource old_source; int i; g_return_if_fail (new != NULL); g_return_if_fail (new->plen > 0); g_assert (priv->ifindex); for (i = 0; i < priv->routes->len; i++ ) { NMPlatformIP6Route *item = &g_array_index (priv->routes, NMPlatformIP6Route, i); if (routes_are_duplicate (item, new, FALSE)) { if (nm_platform_ip6_route_cmp (item, new) == 0) return; old_source = item->source; *item = *new; /* Restore highest priority source */ item->source = MAX (old_source, new->source); item->ifindex = priv->ifindex; goto NOTIFY; } } g_array_append_val (priv->routes, *new); g_array_index (priv->routes, NMPlatformIP6Route, priv->routes->len - 1).ifindex = priv->ifindex; NOTIFY: _NOTIFY (config, PROP_ROUTE_DATA); _NOTIFY (config, PROP_ROUTES); } void nm_ip6_config_del_route (NMIP6Config *config, guint i) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config); g_return_if_fail (i < priv->routes->len); g_array_remove_index (priv->routes, i); _NOTIFY (config, PROP_ROUTE_DATA); _NOTIFY (config, PROP_ROUTES); } guint nm_ip6_config_get_num_routes (const NMIP6Config *config) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config); return priv->routes->len; } const NMPlatformIP6Route * nm_ip6_config_get_route (const NMIP6Config *config, guint i) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config); return &g_array_index (priv->routes, NMPlatformIP6Route, i); } const NMPlatformIP6Route * nm_ip6_config_get_direct_route_for_host (const NMIP6Config *config, const struct in6_addr *host) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config); guint i; struct in6_addr network2, host2; NMPlatformIP6Route *best_route = NULL; g_return_val_if_fail (host && !IN6_IS_ADDR_UNSPECIFIED (host), NULL); for (i = 0; i < priv->routes->len; i++) { NMPlatformIP6Route *item = &g_array_index (priv->routes, NMPlatformIP6Route, i); if (!IN6_IS_ADDR_UNSPECIFIED (&item->gateway)) continue; if (best_route && best_route->plen > item->plen) continue; nm_utils_ip6_address_clear_host_address (&host2, host, item->plen); nm_utils_ip6_address_clear_host_address (&network2, &item->network, item->plen); if (!IN6_ARE_ADDR_EQUAL (&network2, &host2)) continue; if (best_route && nm_utils_ip6_route_metric_normalize (best_route->metric) <= nm_utils_ip6_route_metric_normalize (item->metric)) continue; best_route = item; } return best_route; } const NMPlatformIP6Address * nm_ip6_config_get_subnet_for_host (const NMIP6Config *config, const struct in6_addr *host) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config); guint i; NMPlatformIP6Address *subnet = NULL; struct in6_addr subnet2, host2; g_return_val_if_fail (host && !IN6_IS_ADDR_UNSPECIFIED (host), NULL); for (i = 0; i < priv->addresses->len; i++) { NMPlatformIP6Address *item = &g_array_index (priv->addresses, NMPlatformIP6Address, i); if (subnet && subnet->plen >= item->plen) continue; nm_utils_ip6_address_clear_host_address (&host2, host, item->plen); nm_utils_ip6_address_clear_host_address (&subnet2, &item->address, item->plen); if (IN6_ARE_ADDR_EQUAL (&subnet2, &host2)) subnet = item; } return subnet; } /******************************************************************/ void nm_ip6_config_reset_nameservers (NMIP6Config *config) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config); if (priv->nameservers->len != 0) { g_array_set_size (priv->nameservers, 0); _NOTIFY (config, PROP_NAMESERVERS); } } void nm_ip6_config_add_nameserver (NMIP6Config *config, const struct in6_addr *new) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config); int i; g_return_if_fail (new != NULL); for (i = 0; i < priv->nameservers->len; i++) if (IN6_ARE_ADDR_EQUAL (new, &g_array_index (priv->nameservers, struct in6_addr, i))) return; g_array_append_val (priv->nameservers, *new); _NOTIFY (config, PROP_NAMESERVERS); } void nm_ip6_config_del_nameserver (NMIP6Config *config, guint i) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config); g_return_if_fail (i < priv->nameservers->len); g_array_remove_index (priv->nameservers, i); _NOTIFY (config, PROP_NAMESERVERS); } guint32 nm_ip6_config_get_num_nameservers (const NMIP6Config *config) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config); return priv->nameservers->len; } const struct in6_addr * nm_ip6_config_get_nameserver (const NMIP6Config *config, guint i) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config); return &g_array_index (priv->nameservers, struct in6_addr, i); } /******************************************************************/ void nm_ip6_config_reset_domains (NMIP6Config *config) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config); if (priv->domains->len != 0) { g_ptr_array_set_size (priv->domains, 0); _NOTIFY (config, PROP_DOMAINS); } } void nm_ip6_config_add_domain (NMIP6Config *config, const char *domain) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config); int i; g_return_if_fail (domain != NULL); g_return_if_fail (domain[0] != '\0'); for (i = 0; i < priv->domains->len; i++) if (!g_strcmp0 (g_ptr_array_index (priv->domains, i), domain)) return; g_ptr_array_add (priv->domains, g_strdup (domain)); _NOTIFY (config, PROP_DOMAINS); } void nm_ip6_config_del_domain (NMIP6Config *config, guint i) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config); g_return_if_fail (i < priv->domains->len); g_ptr_array_remove_index (priv->domains, i); _NOTIFY (config, PROP_DOMAINS); } guint32 nm_ip6_config_get_num_domains (const NMIP6Config *config) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config); return priv->domains->len; } const char * nm_ip6_config_get_domain (const NMIP6Config *config, guint i) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config); return g_ptr_array_index (priv->domains, i); } /******************************************************************/ void nm_ip6_config_reset_searches (NMIP6Config *config) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config); if (priv->searches->len != 0) { g_ptr_array_set_size (priv->searches, 0); _NOTIFY (config, PROP_SEARCHES); } } void nm_ip6_config_add_search (NMIP6Config *config, const char *new) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config); char *search; size_t len; g_return_if_fail (new != NULL); g_return_if_fail (new[0] != '\0'); search = g_strdup (new); /* Remove trailing dot as it has no effect */ len = strlen (search); if (search[len - 1] == '.') search[len - 1] = 0; if (!search[0]) { g_free (search); return; } if (_nm_utils_strv_find_first ((char **) priv->searches->pdata, priv->searches->len, search) >= 0) { g_free (search); return; } g_ptr_array_add (priv->searches, search); _NOTIFY (config, PROP_SEARCHES); } void nm_ip6_config_del_search (NMIP6Config *config, guint i) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config); g_return_if_fail (i < priv->searches->len); g_ptr_array_remove_index (priv->searches, i); _NOTIFY (config, PROP_SEARCHES); } guint32 nm_ip6_config_get_num_searches (const NMIP6Config *config) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config); return priv->searches->len; } const char * nm_ip6_config_get_search (const NMIP6Config *config, guint i) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config); return g_ptr_array_index (priv->searches, i); } /******************************************************************/ void nm_ip6_config_reset_dns_options (NMIP6Config *config) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config); if (priv->dns_options->len != 0) { g_ptr_array_set_size (priv->dns_options, 0); _NOTIFY (config, PROP_DNS_OPTIONS); } } void nm_ip6_config_add_dns_option (NMIP6Config *config, const char *new) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config); int i; g_return_if_fail (new != NULL); g_return_if_fail (new[0] != '\0'); for (i = 0; i < priv->dns_options->len; i++) if (!g_strcmp0 (g_ptr_array_index (priv->dns_options, i), new)) return; g_ptr_array_add (priv->dns_options, g_strdup (new)); _NOTIFY (config, PROP_DNS_OPTIONS); } void nm_ip6_config_del_dns_option (NMIP6Config *config, guint i) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config); g_return_if_fail (i < priv->dns_options->len); g_ptr_array_remove_index (priv->dns_options, i); _NOTIFY (config, PROP_DNS_OPTIONS); } guint32 nm_ip6_config_get_num_dns_options (const NMIP6Config *config) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config); return priv->dns_options->len; } const char * nm_ip6_config_get_dns_option (const NMIP6Config *config, guint i) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config); return g_ptr_array_index (priv->dns_options, i); } /******************************************************************/ void nm_ip6_config_set_mss (NMIP6Config *config, guint32 mss) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config); priv->mss = mss; } guint32 nm_ip6_config_get_mss (const NMIP6Config *config) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config); return priv->mss; } /******************************************************************/ static inline void hash_u32 (GChecksum *sum, guint32 n) { g_checksum_update (sum, (const guint8 *) &n, sizeof (n)); } static inline void hash_in6addr (GChecksum *sum, const struct in6_addr *a) { if (a) g_checksum_update (sum, (const guint8 *) a, sizeof (*a)); else g_checksum_update (sum, (const guint8 *) &in6addr_any, sizeof (in6addr_any)); } void nm_ip6_config_hash (const NMIP6Config *config, GChecksum *sum, gboolean dns_only) { guint32 i; const char *s; g_return_if_fail (config); g_return_if_fail (sum); if (dns_only == FALSE) { hash_in6addr (sum, nm_ip6_config_get_gateway (config)); for (i = 0; i < nm_ip6_config_get_num_addresses (config); i++) { const NMPlatformIP6Address *address = nm_ip6_config_get_address (config, i); hash_in6addr (sum, &address->address); hash_u32 (sum, address->plen); } for (i = 0; i < nm_ip6_config_get_num_routes (config); i++) { const NMPlatformIP6Route *route = nm_ip6_config_get_route (config, i); hash_in6addr (sum, &route->network); hash_u32 (sum, route->plen); hash_in6addr (sum, &route->gateway); hash_u32 (sum, route->metric); } } for (i = 0; i < nm_ip6_config_get_num_nameservers (config); i++) hash_in6addr (sum, nm_ip6_config_get_nameserver (config, i)); for (i = 0; i < nm_ip6_config_get_num_domains (config); i++) { s = nm_ip6_config_get_domain (config, i); g_checksum_update (sum, (const guint8 *) s, strlen (s)); } for (i = 0; i < nm_ip6_config_get_num_searches (config); i++) { s = nm_ip6_config_get_search (config, i); g_checksum_update (sum, (const guint8 *) s, strlen (s)); } for (i = 0; i < nm_ip6_config_get_num_dns_options (config); i++) { s = nm_ip6_config_get_dns_option (config, i); g_checksum_update (sum, (const guint8 *) s, strlen (s)); } } /** * nm_ip6_config_equal: * @a: first config to compare * @b: second config to compare * * Compares two #NMIP6Configs for basic equality. This means that all * attributes must exist in the same order in both configs (addresses, routes, * domains, DNS servers, etc) but some attributes (address lifetimes, and address * and route sources) are ignored. * * Returns: %TRUE if the configurations are basically equal to each other, * %FALSE if not */ gboolean nm_ip6_config_equal (const NMIP6Config *a, const NMIP6Config *b) { GChecksum *a_checksum = g_checksum_new (G_CHECKSUM_SHA1); GChecksum *b_checksum = g_checksum_new (G_CHECKSUM_SHA1); gsize a_len = g_checksum_type_get_length (G_CHECKSUM_SHA1); gsize b_len = g_checksum_type_get_length (G_CHECKSUM_SHA1); guchar a_data[a_len], b_data[b_len]; gboolean equal; if (a) nm_ip6_config_hash (a, a_checksum, FALSE); if (b) nm_ip6_config_hash (b, b_checksum, FALSE); g_checksum_get_digest (a_checksum, a_data, &a_len); g_checksum_get_digest (b_checksum, b_data, &b_len); g_assert (a_len == b_len); equal = !memcmp (a_data, b_data, a_len); g_checksum_free (a_checksum); g_checksum_free (b_checksum); return equal; } /******************************************************************/ static void nm_ip6_config_init (NMIP6Config *config) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (config); priv->addresses = g_array_new (FALSE, TRUE, sizeof (NMPlatformIP6Address)); priv->routes = g_array_new (FALSE, TRUE, sizeof (NMPlatformIP6Route)); priv->nameservers = g_array_new (FALSE, TRUE, sizeof (struct in6_addr)); priv->domains = g_ptr_array_new_with_free_func (g_free); priv->searches = g_ptr_array_new_with_free_func (g_free); priv->dns_options = g_ptr_array_new_with_free_func (g_free); priv->route_metric = -1; } static void finalize (GObject *object) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (object); g_array_unref (priv->addresses); g_array_unref (priv->routes); g_array_unref (priv->nameservers); g_ptr_array_unref (priv->domains); g_ptr_array_unref (priv->searches); g_ptr_array_unref (priv->dns_options); G_OBJECT_CLASS (nm_ip6_config_parent_class)->finalize (object); } static void nameservers_to_gvalue (GArray *array, GValue *value) { GVariantBuilder builder; guint i = 0; g_variant_builder_init (&builder, G_VARIANT_TYPE ("aay")); while (array && (i < array->len)) { struct in6_addr *addr; addr = &g_array_index (array, struct in6_addr, i++); g_variant_builder_add (&builder, "@ay", g_variant_new_fixed_array (G_VARIANT_TYPE_BYTE, addr, 16, 1)); } g_value_take_variant (value, g_variant_builder_end (&builder)); } static void get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) { NMIP6Config *config = NM_IP6_CONFIG (object); NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (object); switch (prop_id) { case PROP_IFINDEX: g_value_set_int (value, priv->ifindex); break; case PROP_ADDRESS_DATA: { GVariantBuilder array_builder, addr_builder; int naddr = nm_ip6_config_get_num_addresses (config); int i; g_variant_builder_init (&array_builder, G_VARIANT_TYPE ("aa{sv}")); for (i = 0; i < naddr; i++) { const NMPlatformIP6Address *address = nm_ip6_config_get_address (config, i); g_variant_builder_init (&addr_builder, G_VARIANT_TYPE ("a{sv}")); g_variant_builder_add (&addr_builder, "{sv}", "address", g_variant_new_string (nm_utils_inet6_ntop (&address->address, NULL))); g_variant_builder_add (&addr_builder, "{sv}", "prefix", g_variant_new_uint32 (address->plen)); if ( !IN6_IS_ADDR_UNSPECIFIED (&address->peer_address) && !IN6_ARE_ADDR_EQUAL (&address->peer_address, &address->address)) { g_variant_builder_add (&addr_builder, "{sv}", "peer", g_variant_new_string (nm_utils_inet6_ntop (&address->peer_address, NULL))); } g_variant_builder_add (&array_builder, "a{sv}", &addr_builder); } g_value_take_variant (value, g_variant_builder_end (&array_builder)); } break; case PROP_ADDRESSES: { GVariantBuilder array_builder; const struct in6_addr *gateway = nm_ip6_config_get_gateway (config); int naddr = nm_ip6_config_get_num_addresses (config); int i; g_variant_builder_init (&array_builder, G_VARIANT_TYPE ("a(ayuay)")); for (i = 0; i < naddr; i++) { const NMPlatformIP6Address *address = nm_ip6_config_get_address (config, i); g_variant_builder_add (&array_builder, "(@ayu@ay)", g_variant_new_fixed_array (G_VARIANT_TYPE_BYTE, &address->address, 16, 1), address->plen, g_variant_new_fixed_array (G_VARIANT_TYPE_BYTE, (i == 0 && gateway ? gateway : &in6addr_any), 16, 1)); } g_value_take_variant (value, g_variant_builder_end (&array_builder)); } break; case PROP_ROUTE_DATA: { GVariantBuilder array_builder, route_builder; guint nroutes = nm_ip6_config_get_num_routes (config); int i; g_variant_builder_init (&array_builder, G_VARIANT_TYPE ("aa{sv}")); for (i = 0; i < nroutes; i++) { const NMPlatformIP6Route *route = nm_ip6_config_get_route (config, i); g_variant_builder_init (&route_builder, G_VARIANT_TYPE ("a{sv}")); g_variant_builder_add (&route_builder, "{sv}", "dest", g_variant_new_string (nm_utils_inet6_ntop (&route->network, NULL))); g_variant_builder_add (&route_builder, "{sv}", "prefix", g_variant_new_uint32 (route->plen)); if (!IN6_IS_ADDR_UNSPECIFIED (&route->gateway)) { g_variant_builder_add (&route_builder, "{sv}", "next-hop", g_variant_new_string (nm_utils_inet6_ntop (&route->gateway, NULL))); } g_variant_builder_add (&route_builder, "{sv}", "metric", g_variant_new_uint32 (route->metric)); g_variant_builder_add (&array_builder, "a{sv}", &route_builder); } g_value_take_variant (value, g_variant_builder_end (&array_builder)); } break; case PROP_ROUTES: { GVariantBuilder array_builder; int nroutes = nm_ip6_config_get_num_routes (config); int i; g_variant_builder_init (&array_builder, G_VARIANT_TYPE ("a(ayuayu)")); for (i = 0; i < nroutes; i++) { const NMPlatformIP6Route *route = nm_ip6_config_get_route (config, i); /* legacy versions of nm_ip6_route_set_prefix() in libnm-util assert that the * plen is positive. Skip the default routes not to break older clients. */ if (NM_PLATFORM_IP_ROUTE_IS_DEFAULT (route)) continue; g_variant_builder_add (&array_builder, "(@ayu@ayu)", g_variant_new_fixed_array (G_VARIANT_TYPE_BYTE, &route->network, 16, 1), (guint32) route->plen, g_variant_new_fixed_array (G_VARIANT_TYPE_BYTE, &route->gateway, 16, 1), (guint32) route->metric); } g_value_take_variant (value, g_variant_builder_end (&array_builder)); } break; case PROP_GATEWAY: if (!IN6_IS_ADDR_UNSPECIFIED (&priv->gateway)) g_value_set_string (value, nm_utils_inet6_ntop (&priv->gateway, NULL)); else g_value_set_string (value, NULL); break; case PROP_NAMESERVERS: nameservers_to_gvalue (priv->nameservers, value); break; case PROP_DOMAINS: nm_utils_g_value_set_strv (value, priv->domains); break; case PROP_SEARCHES: nm_utils_g_value_set_strv (value, priv->searches); break; case PROP_DNS_OPTIONS: nm_utils_g_value_set_strv (value, priv->dns_options); 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) { NMIP6ConfigPrivate *priv = NM_IP6_CONFIG_GET_PRIVATE (object); switch (prop_id) { case PROP_IFINDEX: priv->ifindex = g_value_get_int (value); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void nm_ip6_config_class_init (NMIP6ConfigClass *config_class) { GObjectClass *object_class = G_OBJECT_CLASS (config_class); NMExportedObjectClass *exported_object_class = NM_EXPORTED_OBJECT_CLASS (config_class); g_type_class_add_private (config_class, sizeof (NMIP6ConfigPrivate)); exported_object_class->export_path = NM_DBUS_PATH "/IP6Config/%u"; /* virtual methods */ object_class->get_property = get_property; object_class->set_property = set_property; object_class->finalize = finalize; /* properties */ obj_properties[PROP_IFINDEX] = g_param_spec_int (NM_IP6_CONFIG_IFINDEX, "", "", -1, G_MAXINT, -1, G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS); obj_properties[PROP_ADDRESS_DATA] = g_param_spec_variant (NM_IP6_CONFIG_ADDRESS_DATA, "", "", G_VARIANT_TYPE ("aa{sv}"), NULL, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS); obj_properties[PROP_ADDRESSES] = g_param_spec_variant (NM_IP6_CONFIG_ADDRESSES, "", "", G_VARIANT_TYPE ("a(ayuay)"), NULL, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS); obj_properties[PROP_ROUTE_DATA] = g_param_spec_variant (NM_IP6_CONFIG_ROUTE_DATA, "", "", G_VARIANT_TYPE ("aa{sv}"), NULL, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS); obj_properties[PROP_ROUTES] = g_param_spec_variant (NM_IP6_CONFIG_ROUTES, "", "", G_VARIANT_TYPE ("a(ayuayu)"), NULL, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS); obj_properties[PROP_GATEWAY] = g_param_spec_string (NM_IP6_CONFIG_GATEWAY, "", "", NULL, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS); obj_properties[PROP_NAMESERVERS] = g_param_spec_variant (NM_IP6_CONFIG_NAMESERVERS, "", "", G_VARIANT_TYPE ("aay"), NULL, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS); obj_properties[PROP_DOMAINS] = g_param_spec_boxed (NM_IP6_CONFIG_DOMAINS, "", "", G_TYPE_STRV, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS); obj_properties[PROP_SEARCHES] = g_param_spec_boxed (NM_IP6_CONFIG_SEARCHES, "", "", G_TYPE_STRV, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS); obj_properties[PROP_DNS_OPTIONS] = g_param_spec_boxed (NM_IP6_CONFIG_DNS_OPTIONS, "", "", G_TYPE_STRV, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS); g_object_class_install_properties (object_class, LAST_PROP, obj_properties); nm_exported_object_class_add_interface (NM_EXPORTED_OBJECT_CLASS (config_class), NMDBUS_TYPE_IP6_CONFIG_SKELETON, NULL); }