/* NetworkManager -- Network link manager * * Dan Williams * Dan Willemsen * Robert Paskowitz * * 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 Red Hat, Inc. * (C) Copyright 2004 Dan Willemsen * (C) Copyright 2004 Robert Paskowitz */ #include #include #include #include #include "nm-utils.h" /* get strnlen */ #define __USE_GNU #include #include "NetworkManagerSystem.h" #include "NetworkManagerUtils.h" /* * nm_system_init * * Initializes the distribution-specific system backend * */ void nm_system_init (void) { /* While dhcpcd is the client of choice, it's not forced upon the user * So we should probably put in a check for available clients, and * modify our commands appropriatly. */ } /* * nm_system_device_flush_routes * * Flush all routes associated with a network device * */ void nm_system_device_flush_routes (NMDevice *dev) { g_return_if_fail (dev != NULL); /* Not really applicable for test devices */ if (nm_device_is_test_device (dev)) return; nm_system_device_flush_routes_with_iface (nm_device_get_iface (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) { char *buf; g_return_if_fail (iface != NULL); /* Remove routing table entries */ buf = g_strdup_printf ("/sbin/ip route flush dev %s", iface); nm_spawn_process (buf); g_free (buf); } /* * nm_system_device_flush_addresses * * Flush all network addresses associated with a network device * */ void nm_system_device_flush_addresses (NMDevice *dev) { g_return_if_fail (dev != NULL); /* Not really applicable for test devices */ if (nm_device_is_test_device (dev)) return; nm_system_device_flush_addresses_with_iface (nm_device_get_iface (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) { char *buf; g_return_if_fail (iface != NULL); /* Remove all IP addresses for a device */ buf = g_strdup_printf ("/sbin/ip address flush dev %s", iface); nm_spawn_process (buf); g_free (buf); } /* * 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) { char *buf; g_return_if_fail (iface != NULL); /* Add default gateway */ buf = g_strdup_printf ("/sbin/ip route add %s dev %s", route, iface); nm_spawn_process (buf); g_free (buf); } /* * nm_system_enable_loopback * * Bring up the loopback interface * */ void nm_system_enable_loopback (void) { nm_spawn_process ("/sbin/ip link set dev lo up"); nm_spawn_process ("/sbin/ip addr add 127.0.0.1/8 brd 127.255.255.255 dev lo label loopback"); } /* * nm_system_delete_default_route * * Remove the old default route in preparation for a new one * */ void nm_system_delete_default_route (void) { nm_spawn_process ("/sbin/ip route del default"); } /* * 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 dhcpcd"); } /* * nm_system_update_dns * * Make glibc/nscd aware of any changes to the resolv.conf file by * restarting nscd. Only restart if already running. * */ void nm_system_update_dns (void) { if(nm_spawn_process ("/etc/init.d/nscd status")) nm_spawn_process ("/etc/init.d/nscd restart"); } /* * nm_system_load_device_modules * * Loads any network adapter kernel modules, these should already be loaded * by /etc/modules.autoload.d/kernel-2.x * */ void nm_system_load_device_modules (void) { } /* * 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) { } /* * 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) { } typedef struct GentooSystemConfigData { NMIP4Config * config; gboolean use_dhcp; } GentooSystemConfigData; /* * nm_system_device_get_system_config * * Retrieve any relevant configuration info for a particular device * from the system network configuration information. Clear out existing * info before setting stuff too. * */ void *nm_system_device_get_system_config (NMDevice *dev) { char *cfg_file_path = NULL; FILE *file = NULL; char buffer[100]; char confline[100], dhcpline[100], ipline[100]; int ipa, ipb, ipc, ipd; int nNext = 0, bNext = 0, count = 0; char *confToken; gboolean data_good = FALSE; gboolean use_dhcp = TRUE; GentooSystemConfigData *sys_data = NULL; guint32 ip4_address = 0; guint32 ip4_netmask = 0; guint32 ip4_gateway = 0; guint32 ip4_broadcast = 0; g_return_val_if_fail (dev != NULL, NULL); sys_data = g_malloc0 (sizeof (GentooSystemConfigData)); sys_data->config = nm_device_get_ip4_config(dev); /* We use DHCP on an interface unless told not to */ sys_data->use_dhcp = TRUE; nm_device_set_use_dhcp (dev, TRUE); // nm_ip4_config_set_address (sys_data->config, 0); // nm_ip4_config_set_gateway (sys_data->config, 0); // nm_ip4_config_set_netmask (sys_data->config, 0); /* Gentoo systems store this information in * /etc/conf.d/net, this is for all interfaces. */ cfg_file_path = g_strdup_printf ("/etc/conf.d/net"); if (!cfg_file_path) return NULL; if (!(file = fopen (cfg_file_path, "r"))) { g_free (cfg_file_path); return NULL; } sprintf(confline, "iface_%s", nm_device_get_iface (dev)); sprintf(dhcpline, "iface_%s=\"dhcp\"", nm_device_get_iface (dev)); while (fgets (buffer, 499, file) && !feof (file)) { /* Kock off newline if any */ g_strstrip (buffer); if (strncmp (buffer, confline, strlen(confline)) == 0) { /* Make sure this config file is for this device */ if (strncmp (&buffer[strlen(confline) - strlen(nm_device_get_iface (dev))], nm_device_get_iface (dev), strlen(nm_device_get_iface (dev))) != 0) { nm_warning ("System config file '%s' does not define device '%s'\n", cfg_file_path, nm_device_get_iface (dev)); break; } else data_good = TRUE; if (strncmp (buffer, dhcpline, strlen(dhcpline)) == 0) { use_dhcp = TRUE; } else { use_dhcp = FALSE; confToken = strtok(&buffer[strlen(confline) + 2], " "); while (count < 3) { if (nNext == 1 && bNext == 1) { ip4_address = inet_addr (confToken); count++; continue; } if (strcmp(confToken, "netmask") == 0) { confToken = strtok(NULL, " "); ip4_netmask = inet_addr (confToken); count++; nNext = 1; } else if (strcmp(confToken, "broadcast") == 0) { confToken = strtok(NULL, " "); count++; bNext = 1; } else { ip4_address = inet_addr (confToken); count++; } confToken = strtok(NULL, " "); } } } /* If we aren't using dhcp, then try to get the gateway */ if (!use_dhcp) { sprintf(ipline, "gateway=\"%s/", nm_device_get_iface (dev)); if (strncmp(buffer, ipline, strlen(ipline) - 1) == 0) { sprintf(ipline, "gateway=\"%s/%%d.%%d.%%d.%%d\"", nm_device_get_iface (dev) ); sscanf(buffer, ipline, &ipa, &ipb, &ipc, &ipd); sprintf(ipline, "%d.%d.%d.%d", ipa, ipb, ipc, ipd); ip4_gateway = inet_addr (ipline); } } } fclose (file); g_free (cfg_file_path); /* If successful, set values on the device */ if (data_good) { nm_warning("data good :-)"); nm_device_set_use_dhcp (dev, use_dhcp); if (ip4_address) nm_ip4_config_set_address (sys_data->config, ip4_address); if (ip4_gateway) nm_ip4_config_set_gateway (sys_data->config, ip4_gateway); if (ip4_netmask) nm_ip4_config_set_netmask (sys_data->config, ip4_netmask); if (ip4_broadcast) nm_ip4_config_set_broadcast (sys_data->config, ip4_broadcast); } return (void *)sys_data; } /* * nm_system_device_add_default_route_via_device * * Flush all routes associated with a network device * */ void nm_system_device_add_default_route_via_device (NMDevice *dev) { g_return_if_fail (dev != NULL); /* Not really applicable for test devices */ if (nm_device_is_test_device (dev)) return; nm_system_device_add_default_route_via_device_with_iface (nm_device_get_iface (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) { char *buf; g_return_if_fail (iface != NULL); /* Add default gateway */ buf = g_strdup_printf ("/sbin/ip route add default dev %s", iface); nm_spawn_process (buf); g_free (buf); } /* * 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) { /* Remove routing table entries for lo */ nm_spawn_process ("/sbin/ip route flush dev lo"); } /* * nm_system_flush_arp_cache * * Flush all entries in the arp cache. * */ void nm_system_flush_arp_cache (void) { nm_spawn_process ("/sbin/ip neigh flush all"); } void nm_system_device_free_system_config (NMDevice *dev, void *system_config_data) { GentooSystemConfigData *sys_data = (GentooSystemConfigData *)system_config_data; g_return_if_fail (dev != NULL); if (!sys_data) return; if (sys_data->config) nm_ip4_config_unref (sys_data->config); } NMIP4Config *nm_system_device_new_ip4_system_config (NMDevice *dev) { GentooSystemConfigData *sys_data; NMIP4Config *new_config = NULL; g_return_val_if_fail (dev != NULL, NULL); if ((sys_data = nm_device_get_system_config_data (dev))) new_config = nm_ip4_config_copy (sys_data->config); return new_config; } gboolean nm_system_device_get_use_dhcp (NMDevice *dev) { GentooSystemConfigData *sys_data; g_return_val_if_fail (dev != NULL, TRUE); if ((sys_data = nm_device_get_system_config_data (dev))) return sys_data->use_dhcp; return TRUE; }