/* NetworkManager -- Network link manager * * Backend implementation for the Arch Linux distribution http://www.archlinux.org * * Tor Krill and Will Rea * * Updated by Wael Nasreddine * * Updated by Valentine Sinitsyn * * Heavily based on NetworkManagerDebian.c by Matthew Garrett * * Heavily based on NetworkManagerRedhat.c by Dan Williams * * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * * (C) Copyright 2004 Tom Parker * (C) Copyright 2004 Matthew Garrett * (C) Copyright 2004 Red Hat, Inc. */ #ifdef HAVE_CONFIG_H #include #endif #include #include #include #include #include #include #include #include "NetworkManagerGeneric.h" #include "NetworkManagerSystem.h" #include "NetworkManagerUtils.h" #include "nm-device.h" #include "nm-device-802-3-ethernet.h" #include "nm-device-802-11-wireless.h" #include "interface_parser.h" #include "nm-utils.h" #define ARPING "/usr/sbin/arping" /* * nm_system_init * * Initializes the distribution-specific system backend * */ void nm_system_init (void) { nm_generic_init (); } /* * nm_system_device_add_default_route_via_device * * Add default route to the given device * */ void nm_system_device_add_default_route_via_device (NMDevice *dev) { nm_generic_device_add_default_route_via_device (dev); } /* * nm_system_device_add_default_route_via_device_with_iface * * Add default route to the given device * */ void nm_system_device_add_default_route_via_device_with_iface (const char *iface) { nm_generic_device_add_default_route_via_device_with_iface (iface); } /* * nm_system_device_add_route_via_device_with_iface * * Add route to the given device * */ void nm_system_device_add_route_via_device_with_iface (const char *iface, const char *route) { nm_generic_device_add_route_via_device_with_iface (iface, route); } /* * nm_system_device_flush_addresses * * Flush all network addresses associated with a network device * */ void nm_system_device_flush_routes (NMDevice *dev) { nm_generic_device_flush_routes (dev); } /* * nm_system_device_flush_routes_with_iface * * Flush all routes associated with a network device * */ void nm_system_device_flush_routes_with_iface (const char *iface) { nm_generic_device_flush_routes_with_iface (iface); } /* * nm_system_device_flush_addresses * * Flush all network addresses associated with a network device * */ void nm_system_device_flush_addresses (NMDevice *dev) { nm_generic_device_flush_addresses (dev); } /* * nm_system_device_flush_addresses_with_iface * * Flush all network addresses associated with a network device * */ void nm_system_device_flush_addresses_with_iface (const char *iface) { nm_generic_device_flush_addresses_with_iface (iface); } /* * nm_system_device_setup_static_ip4_config * * Set up the device with a particular IPv4 address/netmask/gateway. * * Returns: TRUE on success * FALSE on error * */ #if 0 gboolean nm_system_device_setup_static_ip4_config (NMDevice *dev) { #define IPBITS (sizeof (guint32) * 8) struct in_addr temp_addr; struct in_addr temp_addr2; char *s_tmp; char *s_tmp2; int i; guint32 addr; guint32 netmask; guint32 prefix = IPBITS; /* initialize with # bits in ipv4 address */ guint32 broadcast; char *buf; int err; const char *iface; g_return_val_if_fail (dev != NULL, FALSE); g_return_val_if_fail (!nm_device_config_get_use_dhcp (dev), FALSE); addr = nm_device_config_get_ip4_address (dev); netmask = nm_device_config_get_ip4_netmask (dev); iface = nm_device_get_iface (dev); broadcast = nm_device_config_get_ip4_broadcast (dev); /* get the prefix from the netmask */ for (i = 0; i < IPBITS; i++) { if (!(ntohl (netmask) & ((2 << i) - 1))) prefix--; } /* Calculate the broadcast address if the user didn't specify one */ if (!broadcast) broadcast = ((addr & (int)netmask) | ~(int)netmask); /* * Try and work out if someone else has our IP * using RFC 2131 Duplicate Address Detection */ temp_addr.s_addr = addr; buf = g_strdup_printf ("%s -q -D -c 1 -I %s %s",ARPING, iface, inet_ntoa (temp_addr)); if ((err = nm_spawn_process (buf))) { nm_warning ("Error: Duplicate address '%s' detected for " "device '%s' \n", iface, inet_ntoa (temp_addr)); goto error; } g_free (buf); /* set our IP address */ temp_addr.s_addr = addr; temp_addr2.s_addr = broadcast; s_tmp = g_strdup (inet_ntoa (temp_addr)); s_tmp2 = g_strdup (inet_ntoa (temp_addr2)); buf = g_strdup_printf ("/sbin/ip addr add %s/%d brd %s dev %s label %s", s_tmp, prefix, s_tmp2, iface, iface); g_free (s_tmp); g_free (s_tmp2); if ((err = nm_spawn_process (buf))) { nm_warning ("Error: could not set network configuration for " "device '%s' using command:\n '%s'", iface, buf); goto error; } g_free (buf); /* Alert other computers of our new address */ temp_addr.s_addr = addr; buf = g_strdup_printf ("%s -q -A -c 1 -I %s %s", ARPING,iface, inet_ntoa (temp_addr)); nm_spawn_process (buf); g_free (buf); g_usleep (G_USEC_PER_SEC * 2); buf = g_strdup_printf ("%s -q -U -c 1 -I %s %s", ARPING, iface, inet_ntoa (temp_addr)); nm_spawn_process (buf); g_free (buf); /* set the default route to be this device's gateway */ temp_addr.s_addr = nm_device_config_get_ip4_gateway (dev); buf = g_strdup_printf ("/sbin/ip route replace default via %s dev %s", inet_ntoa (temp_addr), iface); if ((err = nm_spawn_process (buf))) { nm_warning ("Error: could not set default route using " "command:\n '%s'", buf); goto error; } g_free (buf); return(TRUE); error: g_free (buf); nm_system_device_flush_addresses (dev); nm_system_device_flush_routes (dev); return(FALSE); } #endif /* * nm_system_enable_loopback * * Bring up the loopback interface * */ void nm_system_enable_loopback (void) { nm_system_device_set_up_down_with_iface ("lo", TRUE); } /* * nm_system_flush_loopback_routes * * Flush all routes associated with the loopback device, because it * sometimes gets the first route for ZeroConf/Link-Local traffic. * */ void nm_system_flush_loopback_routes (void) { nm_generic_flush_loopback_routes (); } /* * nm_system_delete_default_route * * Remove the old default route in preparation for a new one * */ void nm_system_delete_default_route (void) { nm_generic_delete_default_route (); } /* * nm_system_flush_arp_cache * * Flush all entries in the arp cache. * */ void nm_system_flush_arp_cache (void) { nm_generic_flush_arp_cache (); } /* * nm_system_kill_all_dhcp_daemons * * Kill all DHCP daemons currently running, done at startup. * */ void nm_system_kill_all_dhcp_daemons (void) { nm_spawn_process ("/usr/bin/killall -q dhclient"); } /* * nm_system_update_dns * * Make glibc/nscd aware of any changes to the resolv.conf file by * restarting nscd. * */ void nm_system_update_dns (void) { /* Check if the daemon was already running - do not start a new instance */ if (g_file_test("/var/run/daemons/nscd", G_FILE_TEST_EXISTS)) { nm_spawn_process ("/etc/rc.d/nscd restart"); } } /* * nm_system_restart_mdns_responder * * Restart the multicast DNS responder so that it knows about new * network interfaces and IP addresses. * */ void nm_system_restart_mdns_responder (void) { /* Check if the daemon was already running - do not start a new instance */ if (g_file_test("/var/run/daemons/avahi-daemon", G_FILE_TEST_EXISTS)) { nm_spawn_process ("/etc/rc.d/avahi-daemon restart"); } } /* * nm_system_device_add_ip6_link_address * * Add a default link-local IPv6 address to a device. * */ void nm_system_device_add_ip6_link_address (NMDevice *dev) { nm_generic_device_add_ip6_link_address (dev); } /* * ArchReadConfig * * Read platform dependant config file and fill hash with relevant info */ static GHashTable * ArchReadConfig(const char* file, const char* dev) { gchar *contents=NULL; gchar **split_contents=NULL; GHashTable *cfg,*ifs; guint len; gint i; gpointer val; if (!g_file_get_contents (file, &contents, NULL, NULL) || (contents == NULL)) { return NULL; } if (!(split_contents = g_strsplit (contents, "\n", 0))) { g_free(contents); return NULL; } cfg=g_hash_table_new_full(g_str_hash,g_str_equal,g_free,g_free); if (cfg==NULL) { g_free(contents); return NULL; } ifs=g_hash_table_new_full(g_str_hash,g_str_equal,g_free,g_free); if (ifs==NULL) { g_free(contents); g_hash_table_destroy(cfg); return NULL; } /* load hash with key value pairs from config file */ len = g_strv_length (split_contents); for (i = 0; i < len; i++) { char *line = split_contents[i]; gchar** splt; /* Ignore comments */ if (!line || (line[0] == ';') || (line[0] == '#')) { continue; } line = g_strstrip(line); splt=g_strsplit(line,"=",0); if (g_strv_length(splt)==2) { g_hash_table_insert(cfg,g_strstrip(splt[0]),g_strstrip(splt[1])); } else { g_strfreev(splt); } } /* Find our network device */ if ((val=g_hash_table_lookup(cfg,dev))) { char hit[128]; gchar** splt; gint hits; if (sscanf(val,"\"%[0-9a-zA-Z .]\"",hit)) { splt=g_strsplit(hit," ",0); hits=g_strv_length(splt); if (hits>1) { guint j=0; while ((hits-=2)>=0) { g_hash_table_insert(ifs,splt[j],splt[j+1]); j+=2; } } else { /* This interface is probably using DHCP - check this */ if (!g_ascii_strcasecmp(splt[0],"dhcp")) { g_hash_table_insert(ifs,g_strdup("dhcp"),g_strdup("true")); } } } } /* Find out any default route */ if ((val=g_hash_table_lookup(cfg,"ROUTES"))) { char hit[128]; gchar** splt; gint hits,i; if (sscanf(val,"( %[!0-9a-zA-z ] )",hit)) { splt=g_strsplit(hit," ",0); hits=g_strv_length(splt); for (i=0;iuse_dhcp = TRUE; sys_data->config=NULL; ifh=ArchReadConfig("/etc/rc.conf",nm_device_get_iface(dev)); if (ifh==NULL) { g_free(sys_data); return NULL; } val=g_hash_table_lookup(ifh,nm_device_get_iface(dev)); if (val && !g_hash_table_lookup(ifh, "dhcp")) { /* This device does not use DHCP */ sys_data->use_dhcp=FALSE; sys_data->config = nm_ip4_config_new(); nm_ip4_config_set_address (sys_data->config, inet_addr (val)); val = g_hash_table_lookup(ifh, "gateway"); if (val) nm_ip4_config_set_gateway (sys_data->config, inet_addr (val)); val = g_hash_table_lookup(ifh, "netmask"); if (val) nm_ip4_config_set_netmask (sys_data->config, inet_addr (val)); else { guint32 addr = nm_ip4_config_get_address (sys_data->config); /* Make a default netmask if we have an IP address */ if (((ntohl (addr) & 0xFF000000) >> 24) <= 127) nm_ip4_config_set_netmask (sys_data->config, htonl (0xFF000000)); else if (((ntohl (addr) & 0xFF000000) >> 24) <= 191) nm_ip4_config_set_netmask (sys_data->config, htonl (0xFFFF0000)); else nm_ip4_config_set_netmask (sys_data->config, htonl (0xFFFFFF00)); } val = g_hash_table_lookup(ifh, "broadcast"); if (val) nm_ip4_config_set_broadcast (sys_data->config, inet_addr (val)); else { guint32 broadcast = ((nm_ip4_config_get_address (sys_data->config) & nm_ip4_config_get_netmask (sys_data->config)) | ~nm_ip4_config_get_netmask (sys_data->config)); nm_ip4_config_set_broadcast (sys_data->config, broadcast); } nm_generic_set_ip4_config_from_resolv_conf (SYSCONFDIR"/resolv.conf", sys_data->config); #if 0 { int j; nm_debug ("------ Config (%s)", nm_device_get_iface (dev)); nm_debug (" ADDR=%d", nm_ip4_config_get_address (sys_data->config)); nm_debug (" GW =%d", nm_ip4_config_get_gateway (sys_data->config)); nm_debug (" NM =%d", nm_ip4_config_get_netmask (sys_data->config)); nm_debug (" NSs =%d",nm_ip4_config_get_num_nameservers(sys_data->config)); for (j=0;jconfig);j++) { nm_debug (" NS =%d",nm_ip4_config_get_nameserver(sys_data->config,j)); } nm_debug ("---------------------\n"); } #endif } g_hash_table_destroy(ifh); return (void *)sys_data; } /* * nm_system_device_free_system_config * * Free stored system config data * */ void nm_system_device_free_system_config (NMDevice *dev, void *system_config_data) { ArchSystemConfigData *sys_data = (ArchSystemConfigData*) system_config_data; g_return_if_fail (dev != NULL); if (!sys_data) { return; } if (sys_data->config) g_object_unref (sys_data->config); } /* * nm_system_device_get_disabled * * Return whether the distro-specific system config tells us to use * dhcp for this device. * */ gboolean nm_system_device_get_disabled (NMDevice *dev) { return FALSE; } /* * nm_system_activate_nis * * set up the nis domain and write a yp.conf * */ void nm_system_activate_nis (NMIP4Config *config) { } /* * nm_system_should_modify_resolv_conf * * Can NM update resolv.conf, or is it locked down? */ gboolean nm_system_should_modify_resolv_conf (void) { return TRUE; } /* * nm_system_shutdown_nis * * shutdown ypbind * */ void nm_system_shutdown_nis (void) { } /* * nm_system_set_hostname * * set the hostname * */ void nm_system_set_hostname (NMIP4Config *config) { } /* * nm_system_get_mtu * * Return a user-provided or system-mandated MTU for this device or zero if * no such MTU is provided. */ guint32 nm_system_get_mtu (NMDevice *dev) { return 0; }