/* GIO - GLib Input, Output and Streaming Library * * Copyright (C) 2008 Christian Kellner, Samuel Cormier-Iijima * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General * Public License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place, Suite 330, * Boston, MA 02111-1307, USA. * * Authors: Christian Kellner * Samuel Cormier-Iijima */ #include #include #include #include "ginetaddress.h" #include "gioenums.h" #include "gioenumtypes.h" #include "glibintl.h" #include "gnetworkingprivate.h" /** * SECTION:ginetaddress * @short_description: An IPv4/IPv6 address * * #GInetAddress represents an IPv4 or IPv6 internet address. Use * g_resolver_lookup_by_name() or g_resolver_lookup_by_name_async() to * look up the #GInetAddress for a hostname. Use * g_resolver_lookup_by_address() or * g_resolver_lookup_by_address_async() to look up the hostname for a * #GInetAddress. * * To actually connect to a remote host, you will need a * #GInetSocketAddress (which includes a #GInetAddress as well as a * port number). */ /** * GInetAddress: * * An IPv4 or IPv6 internet address. */ /* Networking initialization function, called from inside the g_once of * g_inet_address_get_type() */ static void _g_networking_init (void) { #ifdef G_OS_WIN32 WSADATA wsadata; if (WSAStartup (MAKEWORD (2, 0), &wsadata) != 0) g_error ("Windows Sockets could not be initialized"); #endif } G_DEFINE_TYPE_WITH_CODE (GInetAddress, g_inet_address, G_TYPE_OBJECT, _g_networking_init ();) struct _GInetAddressPrivate { GSocketFamily family; union { struct in_addr ipv4; struct in6_addr ipv6; } addr; }; enum { PROP_0, PROP_FAMILY, PROP_BYTES, PROP_IS_ANY, PROP_IS_LOOPBACK, PROP_IS_LINK_LOCAL, PROP_IS_SITE_LOCAL, PROP_IS_MULTICAST, PROP_IS_MC_GLOBAL, PROP_IS_MC_LINK_LOCAL, PROP_IS_MC_NODE_LOCAL, PROP_IS_MC_ORG_LOCAL, PROP_IS_MC_SITE_LOCAL, }; static void g_inet_address_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec) { GInetAddress *address = G_INET_ADDRESS (object); switch (prop_id) { case PROP_FAMILY: address->priv->family = g_value_get_enum (value); break; case PROP_BYTES: memcpy (&address->priv->addr, g_value_get_pointer (value), address->priv->family == AF_INET ? sizeof (address->priv->addr.ipv4) : sizeof (address->priv->addr.ipv6)); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void g_inet_address_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) { GInetAddress *address = G_INET_ADDRESS (object); switch (prop_id) { case PROP_FAMILY: g_value_set_enum (value, address->priv->family); break; case PROP_BYTES: g_value_set_pointer (value, &address->priv->addr); break; case PROP_IS_ANY: g_value_set_boolean (value, g_inet_address_get_is_any (address)); break; case PROP_IS_LOOPBACK: g_value_set_boolean (value, g_inet_address_get_is_loopback (address)); break; case PROP_IS_LINK_LOCAL: g_value_set_boolean (value, g_inet_address_get_is_link_local (address)); break; case PROP_IS_SITE_LOCAL: g_value_set_boolean (value, g_inet_address_get_is_site_local (address)); break; case PROP_IS_MULTICAST: g_value_set_boolean (value, g_inet_address_get_is_multicast (address)); break; case PROP_IS_MC_GLOBAL: g_value_set_boolean (value, g_inet_address_get_is_mc_global (address)); break; case PROP_IS_MC_LINK_LOCAL: g_value_set_boolean (value, g_inet_address_get_is_mc_link_local (address)); break; case PROP_IS_MC_NODE_LOCAL: g_value_set_boolean (value, g_inet_address_get_is_mc_node_local (address)); break; case PROP_IS_MC_ORG_LOCAL: g_value_set_boolean (value, g_inet_address_get_is_mc_org_local (address)); break; case PROP_IS_MC_SITE_LOCAL: g_value_set_boolean (value, g_inet_address_get_is_mc_site_local (address)); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); } } static void g_inet_address_class_init (GInetAddressClass *klass) { GObjectClass *gobject_class = G_OBJECT_CLASS (klass); g_type_class_add_private (klass, sizeof (GInetAddressPrivate)); gobject_class->set_property = g_inet_address_set_property; gobject_class->get_property = g_inet_address_get_property; g_object_class_install_property (gobject_class, PROP_FAMILY, g_param_spec_enum ("family", P_("Address family"), P_("The address family (IPv4 or IPv6)"), G_TYPE_SOCKET_FAMILY, G_SOCKET_FAMILY_INVALID, G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_BYTES, g_param_spec_pointer ("bytes", P_("Bytes"), P_("The raw address data"), G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS)); /** * GInetAddress:is-any: * * Whether this is the "any" address for its family. * See g_inet_address_get_is_any(). * * Since: 2.22 */ g_object_class_install_property (gobject_class, PROP_IS_ANY, g_param_spec_boolean ("is-any", P_("Is any"), P_("Whether this is the \"any\" address for its family"), FALSE, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS)); /** * GInetAddress:is-link-local: * * Whether this is a link-local address. * See g_inet_address_get_is_link_local(). * * Since: 2.22 */ g_object_class_install_property (gobject_class, PROP_IS_LINK_LOCAL, g_param_spec_boolean ("is-link-local", P_("Is link-local"), P_("Whether this is a link-local address"), FALSE, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS)); /** * GInetAddress:is-loopback: * * Whether this is the loopback address for its family. * See g_inet_address_get_is_loopback(). * * Since: 2.22 */ g_object_class_install_property (gobject_class, PROP_IS_LOOPBACK, g_param_spec_boolean ("is-loopback", P_("Is loopback"), P_("Whether this is the loopback address for its family"), FALSE, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS)); /** * GInetAddress:is-site-local: * * Whether this is a site-local address. * See g_inet_address_get_is_loopback(). * * Since: 2.22 */ g_object_class_install_property (gobject_class, PROP_IS_SITE_LOCAL, g_param_spec_boolean ("is-site-local", P_("Is site-local"), P_("Whether this is a site-local address"), FALSE, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS)); /** * GInetAddress:is-multicast: * * Whether this is a multicast address. * See g_inet_address_get_is_multicast(). * * Since: 2.22 */ g_object_class_install_property (gobject_class, PROP_IS_MULTICAST, g_param_spec_boolean ("is-multicast", P_("Is multicast"), P_("Whether this is a multicast address"), FALSE, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS)); /** * GInetAddress:is-mc-global: * * Whether this is a global multicast address. * See g_inet_address_get_is_mc_global(). * * Since: 2.22 */ g_object_class_install_property (gobject_class, PROP_IS_MC_GLOBAL, g_param_spec_boolean ("is-mc-global", P_("Is multicast global"), P_("Whether this is a global multicast address"), FALSE, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS)); /** * GInetAddress:is-mc-link-local: * * Whether this is a link-local multicast address. * See g_inet_address_get_is_mc_link_local(). * * Since: 2.22 */ g_object_class_install_property (gobject_class, PROP_IS_MC_LINK_LOCAL, g_param_spec_boolean ("is-mc-link-local", P_("Is multicast link-local"), P_("Whether this is a link-local multicast address"), FALSE, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS)); /** * GInetAddress:is-mc-node-local: * * Whether this is a node-local multicast address. * See g_inet_address_get_is_mc_node_local(). * * Since: 2.22 */ g_object_class_install_property (gobject_class, PROP_IS_MC_NODE_LOCAL, g_param_spec_boolean ("is-mc-node-local", P_("Is multicast node-local"), P_("Whether this is a node-local multicast address"), FALSE, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS)); /** * GInetAddress:is-mc-org-local: * * Whether this is an organization-local multicast address. * See g_inet_address_get_is_mc_org_local(). * * Since: 2.22 */ g_object_class_install_property (gobject_class, PROP_IS_MC_ORG_LOCAL, g_param_spec_boolean ("is-mc-org-local", P_("Is multicast org-local"), P_("Whether this is an organization-local multicast address"), FALSE, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS)); /** * GInetAddress:is-mc-site-local: * * Whether this is a site-local multicast address. * See g_inet_address_get_is_mc_site_local(). * * Since: 2.22 */ g_object_class_install_property (gobject_class, PROP_IS_MC_SITE_LOCAL, g_param_spec_boolean ("is-mc-site-local", P_("Is multicast site-local"), P_("Whether this is a site-local multicast address"), FALSE, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS)); } static void g_inet_address_init (GInetAddress *address) { address->priv = G_TYPE_INSTANCE_GET_PRIVATE (address, G_TYPE_INET_ADDRESS, GInetAddressPrivate); } /** * g_inet_address_new_from_string: * @string: a string representation of an IP address * * Parses @string as an IP address and creates a new #GInetAddress. * * Returns: a new #GInetAddress corresponding to @string, or %NULL if * @string could not be parsed. * * Since: 2.22 */ GInetAddress * g_inet_address_new_from_string (const gchar *string) { volatile GType type; #ifdef G_OS_WIN32 struct sockaddr_storage sa; struct sockaddr_in *sin = (struct sockaddr_in *)&sa; struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)&sa; gint len; #else /* !G_OS_WIN32 */ struct in_addr in_addr; struct in6_addr in6_addr; #endif /* Make sure _g_networking_init() has been called */ type = g_inet_address_get_type (); #ifdef G_OS_WIN32 memset (&sa, 0, sizeof (sa)); len = sizeof (sa); if (WSAStringToAddress ((LPTSTR) string, AF_INET, NULL, (LPSOCKADDR) &sa, &len) == 0) return g_inet_address_new_from_bytes ((guint8 *)&sin->sin_addr, AF_INET); else if (WSAStringToAddress ((LPTSTR) string, AF_INET6, NULL, (LPSOCKADDR) &sa, &len) == 0) return g_inet_address_new_from_bytes ((guint8 *)&sin6->sin6_addr, AF_INET6); #else /* !G_OS_WIN32 */ if (inet_pton (AF_INET, string, &in_addr) > 0) return g_inet_address_new_from_bytes ((guint8 *)&in_addr, AF_INET); else if (inet_pton (AF_INET6, string, &in6_addr) > 0) return g_inet_address_new_from_bytes ((guint8 *)&in6_addr, AF_INET6); #endif return NULL; } #define G_INET_ADDRESS_FAMILY_IS_VALID(family) ((family) == AF_INET || (family) == AF_INET6) /** * g_inet_address_new_from_bytes: * @bytes: raw address data * @family: the address family of @bytes * * Creates a new #GInetAddress from the given @family and @bytes. * @bytes should be 4 bytes for %G_INET_ADDRESS_IPV4 and 16 bytes for * %G_INET_ADDRESS_IPV6. * * Returns: a new #GInetAddress corresponding to @family and @bytes. * * Since: 2.22 */ GInetAddress * g_inet_address_new_from_bytes (const guint8 *bytes, GSocketFamily family) { g_return_val_if_fail (G_INET_ADDRESS_FAMILY_IS_VALID (family), NULL); return g_object_new (G_TYPE_INET_ADDRESS, "family", family, "bytes", bytes, NULL); } /** * g_inet_address_new_loopback: * @family: the address family * * Creates a #GInetAddress for the loopback address for @family. * * Returns: a new #GInetAddress corresponding to the loopback address * for @family. * * Since: 2.22 */ GInetAddress * g_inet_address_new_loopback (GSocketFamily family) { g_return_val_if_fail (G_INET_ADDRESS_FAMILY_IS_VALID (family), NULL); if (family == AF_INET) { guint8 addr[4] = {127, 0, 0, 1}; return g_inet_address_new_from_bytes (addr, family); } else return g_inet_address_new_from_bytes (in6addr_loopback.s6_addr, family); } /** * g_inet_address_new_any: * @family: the address family * * Creates a #GInetAddress for the "any" address (unassigned/"don't * care") for @family. * * Returns: a new #GInetAddress corresponding to the "any" address * for @family. * * Since: 2.22 */ GInetAddress * g_inet_address_new_any (GSocketFamily family) { g_return_val_if_fail (G_INET_ADDRESS_FAMILY_IS_VALID (family), NULL); if (family == AF_INET) { guint8 addr[4] = {0, 0, 0, 0}; return g_inet_address_new_from_bytes (addr, family); } else return g_inet_address_new_from_bytes (in6addr_any.s6_addr, family); } /** * g_inet_address_to_string: * @address: a #GInetAddress * * Converts @address to string form. * * Returns: a representation of @address as a string, which should be * freed after use. * * Since: 2.22 */ gchar * g_inet_address_to_string (GInetAddress *address) { gchar buffer[INET6_ADDRSTRLEN]; #ifdef G_OS_WIN32 DWORD buflen = sizeof (buffer), addrlen; struct sockaddr_storage sa; struct sockaddr_in *sin = (struct sockaddr_in *)&sa; struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)&sa; #endif g_return_val_if_fail (G_IS_INET_ADDRESS (address), NULL); #ifdef G_OS_WIN32 sa.ss_family = address->priv->family; if (address->priv->family == AF_INET) { addrlen = sizeof (*sin); memcpy (&sin->sin_addr, &address->priv->addr.ipv4, sizeof (sin->sin_addr)); sin->sin_port = 0; } else { addrlen = sizeof (*sin6); memcpy (&sin6->sin6_addr, &address->priv->addr.ipv6, sizeof (sin6->sin6_addr)); sin6->sin6_port = 0; } if (WSAAddressToString ((LPSOCKADDR) &sa, addrlen, NULL, buffer, &buflen) != 0) return NULL; #else /* !G_OS_WIN32 */ if (address->priv->family == AF_INET) inet_ntop (AF_INET, &address->priv->addr.ipv4, buffer, sizeof (buffer)); else inet_ntop (AF_INET6, &address->priv->addr.ipv6, buffer, sizeof (buffer)); #endif return g_strdup (buffer); } /** * g_inet_address_to_bytes: (skip) * @address: a #GInetAddress * * Gets the raw binary address data from @address. * * Returns: a pointer to an internal array of the bytes in @address, * which should not be modified, stored, or freed. The size of this * array can be gotten with g_inet_address_get_native_size(). * * Since: 2.22 */ const guint8 * g_inet_address_to_bytes (GInetAddress *address) { g_return_val_if_fail (G_IS_INET_ADDRESS (address), NULL); return (guint8 *)&address->priv->addr; } /** * g_inet_address_get_native_size: * @address: a #GInetAddress * * Gets the size of the native raw binary address for @address. This * is the size of the data that you get from g_inet_address_to_bytes(). * * Returns: the number of bytes used for the native version of @address. * * Since: 2.22 */ gsize g_inet_address_get_native_size (GInetAddress *address) { if (address->priv->family == AF_INET) return sizeof (address->priv->addr.ipv4); return sizeof (address->priv->addr.ipv6); } /** * g_inet_address_get_family: * @address: a #GInetAddress * * Gets @address's family * * Returns: @address's family * * Since: 2.22 */ GSocketFamily g_inet_address_get_family (GInetAddress *address) { g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE); return address->priv->family; } /** * g_inet_address_get_is_any: * @address: a #GInetAddress * * Tests whether @address is the "any" address for its family. * * Returns: %TRUE if @address is the "any" address for its family. * * Since: 2.22 */ gboolean g_inet_address_get_is_any (GInetAddress *address) { g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE); if (address->priv->family == AF_INET) { guint32 addr4 = g_ntohl (address->priv->addr.ipv4.s_addr); return addr4 == INADDR_ANY; } else return IN6_IS_ADDR_UNSPECIFIED (&address->priv->addr.ipv6); } /** * g_inet_address_get_is_loopback: * @address: a #GInetAddress * * Tests whether @address is the loopback address for its family. * * Returns: %TRUE if @address is the loopback address for its family. * * Since: 2.22 */ gboolean g_inet_address_get_is_loopback (GInetAddress *address) { g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE); if (address->priv->family == AF_INET) { guint32 addr4 = g_ntohl (address->priv->addr.ipv4.s_addr); /* 127.0.0.0/8 */ return ((addr4 & 0xff000000) == 0x7f000000); } else return IN6_IS_ADDR_LOOPBACK (&address->priv->addr.ipv6); } /** * g_inet_address_get_is_link_local: * @address: a #GInetAddress * * Tests whether @address is a link-local address (that is, if it * identifies a host on a local network that is not connected to the * Internet). * * Returns: %TRUE if @address is a link-local address. * * Since: 2.22 */ gboolean g_inet_address_get_is_link_local (GInetAddress *address) { g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE); if (address->priv->family == AF_INET) { guint32 addr4 = g_ntohl (address->priv->addr.ipv4.s_addr); /* 169.254.0.0/16 */ return ((addr4 & 0xffff0000) == 0xa9fe0000); } else return IN6_IS_ADDR_LINKLOCAL (&address->priv->addr.ipv6); } /** * g_inet_address_get_is_site_local: * @address: a #GInetAddress * * Tests whether @address is a site-local address such as 10.0.0.1 * (that is, the address identifies a host on a local network that can * not be reached directly from the Internet, but which may have * outgoing Internet connectivity via a NAT or firewall). * * Returns: %TRUE if @address is a site-local address. * * Since: 2.22 */ gboolean g_inet_address_get_is_site_local (GInetAddress *address) { g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE); if (address->priv->family == AF_INET) { guint32 addr4 = g_ntohl (address->priv->addr.ipv4.s_addr); /* 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16 */ return ((addr4 & 0xff000000) == 0x0a000000 || (addr4 & 0xfff00000) == 0xac100000 || (addr4 & 0xffff0000) == 0xc0a80000); } else return IN6_IS_ADDR_SITELOCAL (&address->priv->addr.ipv6); } /** * g_inet_address_get_is_multicast: * @address: a #GInetAddress * * Tests whether @address is a multicast address. * * Returns: %TRUE if @address is a multicast address. * * Since: 2.22 */ gboolean g_inet_address_get_is_multicast (GInetAddress *address) { g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE); if (address->priv->family == AF_INET) { guint32 addr4 = g_ntohl (address->priv->addr.ipv4.s_addr); return IN_MULTICAST (addr4); } else return IN6_IS_ADDR_MULTICAST (&address->priv->addr.ipv6); } /** * g_inet_address_get_is_mc_global: * @address: a #GInetAddress * * Tests whether @address is a global multicast address. * * Returns: %TRUE if @address is a global multicast address. * * Since: 2.22 */ gboolean g_inet_address_get_is_mc_global (GInetAddress *address) { g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE); if (address->priv->family == AF_INET) return FALSE; else return IN6_IS_ADDR_MC_GLOBAL (&address->priv->addr.ipv6); } /** * g_inet_address_get_is_mc_link_local: * @address: a #GInetAddress * * Tests whether @address is a link-local multicast address. * * Returns: %TRUE if @address is a link-local multicast address. * * Since: 2.22 */ gboolean g_inet_address_get_is_mc_link_local (GInetAddress *address) { g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE); if (address->priv->family == AF_INET) return FALSE; else return IN6_IS_ADDR_MC_LINKLOCAL (&address->priv->addr.ipv6); } /** * g_inet_address_get_is_mc_node_local: * @address: a #GInetAddress * * Tests whether @address is a node-local multicast address. * * Returns: %TRUE if @address is a node-local multicast address. * * Since: 2.22 */ gboolean g_inet_address_get_is_mc_node_local (GInetAddress *address) { g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE); if (address->priv->family == AF_INET) return FALSE; else return IN6_IS_ADDR_MC_NODELOCAL (&address->priv->addr.ipv6); } /** * g_inet_address_get_is_mc_org_local: * @address: a #GInetAddress * * Tests whether @address is an organization-local multicast address. * * Returns: %TRUE if @address is an organization-local multicast address. * * Since: 2.22 */ gboolean g_inet_address_get_is_mc_org_local (GInetAddress *address) { g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE); if (address->priv->family == AF_INET) return FALSE; else return IN6_IS_ADDR_MC_ORGLOCAL (&address->priv->addr.ipv6); } /** * g_inet_address_get_is_mc_site_local: * @address: a #GInetAddress * * Tests whether @address is a site-local multicast address. * * Returns: %TRUE if @address is a site-local multicast address. * * Since: 2.22 */ gboolean g_inet_address_get_is_mc_site_local (GInetAddress *address) { g_return_val_if_fail (G_IS_INET_ADDRESS (address), FALSE); if (address->priv->family == AF_INET) return FALSE; else return IN6_IS_ADDR_MC_SITELOCAL (&address->priv->addr.ipv6); }