mirror of
https://gitlab.freedesktop.org/NetworkManager/NetworkManager.git
synced 2025-12-30 06:10:11 +01:00
a94e716ecb
git-svn-id: http://svn-archive.gnome.org/svn/NetworkManager/trunk@1942 4912f4e0-d625-0410-9fb7-b9a5a253dbdc
442 lines
10 KiB
C
442 lines
10 KiB
C
/* NetworkManager -- Network link manager
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*
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* Dan Williams <dcbw@redhat.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* (C) Copyright 2005 Red Hat, Inc.
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*/
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#include <glib.h>
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#include <stdio.h>
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#include <string.h>
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#include "NetworkManager.h"
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#include "NetworkManagerUtils.h"
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#include "nm-ip4-config.h"
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#include <netlink/route/addr.h>
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#include <netlink/utils.h>
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#include <netinet/in.h>
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struct NMIP4Config
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{
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guint refcount;
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guint32 ip4_address;
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guint32 ip4_ptp_address;
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guint32 ip4_gateway;
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guint32 ip4_netmask;
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guint32 ip4_broadcast;
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guint32 mtu; /* Maximum Transmission Unit of the interface */
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guint32 mss; /* Maximum Segment Size of the route */
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GSList * nameservers;
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GSList * domains;
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gchar * hostname;
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gchar * nis_domain;
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GSList * nis_servers;
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/* If this is a VPN/etc config that requires
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* another device (like Ethernet) to already have
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* an IP4Config before it can be used.
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*/
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gboolean secondary;
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};
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NMIP4Config *nm_ip4_config_new (void)
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{
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NMIP4Config *config = g_slice_new0 (NMIP4Config);
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config->refcount = 1;
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return config;
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}
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NMIP4Config *nm_ip4_config_copy (NMIP4Config *src_config)
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{
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NMIP4Config * dst_config;
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int i, len;
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g_return_val_if_fail (src_config != NULL, NULL);
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dst_config = g_slice_new0 (NMIP4Config);
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dst_config->refcount = 1;
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dst_config->ip4_address = nm_ip4_config_get_address (src_config);
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dst_config->ip4_ptp_address = nm_ip4_config_get_ptp_address (src_config);
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dst_config->ip4_gateway = nm_ip4_config_get_gateway (src_config);
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dst_config->ip4_netmask = nm_ip4_config_get_netmask (src_config);
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dst_config->ip4_broadcast = nm_ip4_config_get_broadcast (src_config);
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dst_config->hostname = g_strdup (nm_ip4_config_get_hostname (src_config));
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dst_config->nis_domain = g_strdup (nm_ip4_config_get_nis_domain (src_config));
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len = nm_ip4_config_get_num_nameservers (src_config);
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for (i = 0; i < len; i++)
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nm_ip4_config_add_nameserver (dst_config, nm_ip4_config_get_nameserver (src_config, i));
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len = nm_ip4_config_get_num_domains (src_config);
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for (i = 0; i < len; i++)
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nm_ip4_config_add_domain (dst_config, nm_ip4_config_get_domain (src_config, i));
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len = nm_ip4_config_get_num_nis_servers (src_config);
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for (i = 0; i < len; i++)
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nm_ip4_config_add_nis_server (dst_config, nm_ip4_config_get_nis_server (src_config, i));
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return dst_config;
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}
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void nm_ip4_config_ref (NMIP4Config *config)
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{
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g_return_if_fail (config != NULL);
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config->refcount++;
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}
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void nm_ip4_config_unref (NMIP4Config *config)
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{
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g_return_if_fail (config != NULL);
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config->refcount--;
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if (config->refcount <= 0)
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{
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g_free (config->hostname);
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g_free (config->nis_domain);
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g_slist_free (config->nameservers);
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g_slist_foreach (config->domains, (GFunc) g_free, NULL);
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g_slist_free (config->domains);
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g_slist_free (config->nis_servers);
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memset (config, 0, sizeof (NMIP4Config));
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g_slice_free (NMIP4Config, config);
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}
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}
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gboolean nm_ip4_config_get_secondary (NMIP4Config *config)
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{
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g_return_val_if_fail (config != NULL, FALSE);
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return config->secondary;
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}
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void nm_ip4_config_set_secondary (NMIP4Config *config, gboolean secondary)
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{
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g_return_if_fail (config != NULL);
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config->secondary = secondary;
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}
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guint32 nm_ip4_config_get_address (NMIP4Config *config)
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{
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g_return_val_if_fail (config != NULL, 0);
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return config->ip4_address;
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}
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void nm_ip4_config_set_address (NMIP4Config *config, guint32 addr)
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{
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g_return_if_fail (config != NULL);
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config->ip4_address = addr;
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}
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guint32 nm_ip4_config_get_ptp_address (NMIP4Config *config)
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{
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g_return_val_if_fail (config != NULL, 0);
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return config->ip4_ptp_address;
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}
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void nm_ip4_config_set_ptp_address (NMIP4Config *config, guint32 ptp_addr)
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{
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g_return_if_fail (config != NULL);
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config->ip4_ptp_address = ptp_addr;
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}
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guint32 nm_ip4_config_get_gateway (NMIP4Config *config)
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{
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g_return_val_if_fail (config != NULL, 0);
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return config->ip4_gateway;
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}
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void nm_ip4_config_set_gateway (NMIP4Config *config, guint32 gateway)
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{
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g_return_if_fail (config != NULL);
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config->ip4_gateway = gateway;
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}
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guint32 nm_ip4_config_get_netmask (NMIP4Config *config)
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{
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g_return_val_if_fail (config != NULL, 0);
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return config->ip4_netmask;
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}
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void nm_ip4_config_set_netmask (NMIP4Config *config, guint32 netmask)
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{
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g_return_if_fail (config != NULL);
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config->ip4_netmask = netmask;
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}
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guint32 nm_ip4_config_get_broadcast (NMIP4Config *config)
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{
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g_return_val_if_fail (config != NULL, 0);
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return config->ip4_broadcast;
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}
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void nm_ip4_config_set_broadcast (NMIP4Config *config, guint32 broadcast)
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{
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g_return_if_fail (config != NULL);
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config->ip4_broadcast = broadcast;
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}
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void nm_ip4_config_add_nameserver (NMIP4Config *config, guint32 nameserver)
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{
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g_return_if_fail (config != NULL);
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if (nameserver != 0)
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config->nameservers = g_slist_append (config->nameservers, GINT_TO_POINTER (nameserver));
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}
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guint32 nm_ip4_config_get_nameserver (NMIP4Config *config, guint i)
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{
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guint nameserver;
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g_return_val_if_fail (config != NULL, 0);
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g_return_val_if_fail (i < g_slist_length (config->nameservers), 0);
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if ((nameserver = GPOINTER_TO_UINT (g_slist_nth_data (config->nameservers, i))))
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return nameserver;
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return 0;
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}
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guint32 nm_ip4_config_get_num_nameservers (NMIP4Config *config)
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{
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g_return_val_if_fail (config != NULL, 0);
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return (g_slist_length (config->nameservers));
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}
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void nm_ip4_config_add_nis_server (NMIP4Config *config, guint32 nis_server)
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{
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g_return_if_fail (config != NULL);
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config->nis_servers = g_slist_append (config->nis_servers, GINT_TO_POINTER (nis_server));
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}
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guint32 nm_ip4_config_get_nis_server (NMIP4Config *config, guint i)
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{
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guint nis_server;
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g_return_val_if_fail (config != NULL, 0);
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g_return_val_if_fail (i < g_slist_length (config->nis_servers), 0);
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if ((nis_server = GPOINTER_TO_UINT (g_slist_nth_data (config->nis_servers, i))))
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return nis_server;
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return 0;
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}
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guint32 nm_ip4_config_get_num_nis_servers (NMIP4Config *config)
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{
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g_return_val_if_fail (config != NULL, 0);
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return (g_slist_length (config->nis_servers));
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}
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void nm_ip4_config_add_domain (NMIP4Config *config, const char *domain)
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{
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g_return_if_fail (config != NULL);
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g_return_if_fail (domain != NULL);
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if (!strlen (domain))
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return;
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config->domains = g_slist_append (config->domains, g_strdup (domain));
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}
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void nm_ip4_config_set_hostname (NMIP4Config *config, const char *hostname)
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{
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g_return_if_fail (config != NULL);
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g_return_if_fail (hostname != NULL);
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if (!strlen (hostname))
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return;
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config->hostname = g_strdup (hostname);
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}
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const char *nm_ip4_config_get_hostname (NMIP4Config *config)
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{
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g_return_val_if_fail (config != NULL, NULL);
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return config->hostname;
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}
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void nm_ip4_config_set_nis_domain (NMIP4Config *config, const char *domain)
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{
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g_return_if_fail (config != NULL);
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g_return_if_fail (domain != NULL);
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if (!strlen (domain))
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return;
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config->nis_domain = g_strdup (domain);
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}
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const char *nm_ip4_config_get_nis_domain (NMIP4Config *config)
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{
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g_return_val_if_fail( config != NULL, NULL);
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return config->nis_domain;
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}
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const char *nm_ip4_config_get_domain (NMIP4Config *config, guint i)
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{
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const char *domain;
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g_return_val_if_fail (config != NULL, NULL);
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g_return_val_if_fail (i < g_slist_length (config->domains), NULL);
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if ((domain = (const char *) g_slist_nth_data (config->domains, i)))
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return domain;
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return NULL;
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}
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guint32 nm_ip4_config_get_num_domains (NMIP4Config *config)
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{
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g_return_val_if_fail (config != NULL, 0);
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return (g_slist_length (config->domains));
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}
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guint32 nm_ip4_config_get_mtu (NMIP4Config *config)
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{
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g_return_val_if_fail (config != NULL, 0);
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return config->mtu;
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}
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void nm_ip4_config_set_mtu (NMIP4Config *config, guint32 mtu)
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{
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g_return_if_fail (config != NULL);
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config->mtu = mtu;
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}
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guint32 nm_ip4_config_get_mss (NMIP4Config *config)
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{
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g_return_val_if_fail (config != NULL, 0);
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return config->mss;
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}
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void nm_ip4_config_set_mss (NMIP4Config *config, guint32 mss)
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{
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g_return_if_fail (config != NULL);
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config->mss = mss;
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}
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/* libnl convenience/conversion functions */
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static int ip4_addr_to_rtnl_local (guint32 ip4_address, struct rtnl_addr *addr)
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{
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struct nl_addr * local = NULL;
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int err = 0;
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g_return_val_if_fail (addr != NULL, -1);
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local = nm_utils_ip4_addr_to_nl_addr (ip4_address);
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err = rtnl_addr_set_local (addr, local);
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nl_addr_put (local);
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return err;
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}
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static int ip4_addr_to_rtnl_peer (guint32 ip4_address, struct rtnl_addr *addr)
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{
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struct nl_addr * peer = NULL;
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int err = 0;
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g_return_val_if_fail (addr != NULL, -1);
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peer = nm_utils_ip4_addr_to_nl_addr (ip4_address);
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err = rtnl_addr_set_peer (addr, peer);
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nl_addr_put (peer);
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return err;
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}
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static void ip4_addr_to_rtnl_prefixlen (guint32 ip4_netmask, struct rtnl_addr *addr)
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{
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g_return_if_fail (addr != NULL);
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rtnl_addr_set_prefixlen (addr, nm_utils_ip4_netmask_to_prefix (ip4_netmask));
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}
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static int ip4_addr_to_rtnl_broadcast (guint32 ip4_broadcast, struct rtnl_addr *addr)
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{
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struct nl_addr * local = NULL;
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int err = 0;
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g_return_val_if_fail (addr != NULL, -1);
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local = nm_utils_ip4_addr_to_nl_addr (ip4_broadcast);
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err = rtnl_addr_set_broadcast (addr, local);
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nl_addr_put (local);
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return err;
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}
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struct rtnl_addr * nm_ip4_config_to_rtnl_addr (NMIP4Config *config, guint32 flags)
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{
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struct rtnl_addr * addr = NULL;
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gboolean success = TRUE;
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g_return_val_if_fail (config != NULL, NULL);
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if (!(addr = rtnl_addr_alloc()))
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return NULL;
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if (flags & NM_RTNL_ADDR_ADDR)
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success = (ip4_addr_to_rtnl_local (config->ip4_address, addr) >= 0);
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if (flags & NM_RTNL_ADDR_PTP_ADDR)
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success = (ip4_addr_to_rtnl_peer (config->ip4_ptp_address, addr) >= 0);
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if (flags & NM_RTNL_ADDR_NETMASK)
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ip4_addr_to_rtnl_prefixlen (config->ip4_netmask, addr);
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if (flags & NM_RTNL_ADDR_BROADCAST)
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success = (ip4_addr_to_rtnl_broadcast (config->ip4_broadcast, addr) >= 0);
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if (!success)
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{
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rtnl_addr_put (addr);
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addr = NULL;
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}
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return addr;
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}
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