/* 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 "NetworkManagerSystem.h" #include "NetworkManagerUtils.h" typedef enum GENTOOConfType { GENTOO_CONF_TYPE_IFCONFIG = 0, GENTOO_CONF_TYPE_IPROUTE } GENTOOConfType; static GENTOOConfType nm_system_gentoo_conf_type; /* * nm_system_init * * Initializes the distribution-specific system backend * */ void nm_system_init (void) { // TODO: autodetect conf type, probably by checking if /sbin/ip exists /* It's not safe to assume the the iproute stuff exists, but seeing as it * is far more convinient to flush stuff with /sbin/ip with iproute * I think it would be acceptable to introduce the sys-apps/iproute2 * package as a dependancy for Gentoo. */ nm_system_gentoo_conf_type = GENTOO_CONF_TYPE_IPROUTE; } /* * nm_system_device_run_dhcp * * Run the dhcp daemon for a particular interface. * * Returns: TRUE on success * FALSE on dhcp error * */ gboolean nm_system_device_run_dhcp (NMDevice *dev) { char buf [500]; char *iface; int err; g_return_val_if_fail (dev != NULL, FALSE); /* Fake it for a test device */ if (nm_device_is_test_device (dev)) { g_usleep (2000); return (TRUE); } iface = nm_device_get_iface (dev); snprintf (buf, 500, "/sbin/dhcpcd %s", iface); err = nm_spawn_process (buf); return (err == 0); } /* * nm_system_device_stop_dhcp * * Kill any dhcp daemon that happens to be around. We may be changing * interfaces and we're going to bring the previous one down, so there's * no sense in keeping the dhcp daemon running on the old interface. * */ void nm_system_device_stop_dhcp (NMDevice *dev) { FILE *pidfile; char buf [500]; g_return_if_fail (dev != NULL); /* Not really applicable for test devices */ if (nm_device_is_test_device (dev)) return; snprintf (buf, 500, "/var/run/dhcpcd-%s.pid", nm_device_get_iface(dev)); pidfile = fopen (buf, "r"); if (pidfile) { int len; unsigned char s_pid[20]; pid_t n_pid = -1; memset (s_pid, 0, 20); fgets (s_pid, 19, pidfile); len = strnlen (s_pid, 20); fclose (pidfile); n_pid = atoi (s_pid); if (n_pid > 0) kill (n_pid, SIGTERM); } } /* * nm_system_device_flush_routes * * Flush all routes associated with a network device * */ void nm_system_device_flush_routes (NMDevice *dev) { char buf [100]; g_return_if_fail (dev != NULL); /* Not really applicable for test devices */ if (nm_device_is_test_device (dev)) return; if (nm_system_gentoo_conf_type == GENTOO_CONF_TYPE_IPROUTE) { snprintf (buf, 100, "/sbin/ip route flush dev %s", nm_device_get_iface (dev)); } else if (nm_system_gentoo_conf_type == GENTOO_CONF_TYPE_IFCONFIG) { // FIXME: this command still isn't right /* See note above */ snprintf (buf, 100, "/sbin/route del dev %s", nm_device_get_iface (dev)); } else { snprintf (buf, 100, "/bin/false"); } nm_spawn_process (buf); } /* * nm_system_device_flush_addresses * * Flush all network addresses associated with a network device * */ void nm_system_device_flush_addresses (NMDevice *dev) { char buf [100]; g_return_if_fail (dev != NULL); /* Not really applicable for test devices */ if (nm_device_is_test_device (dev)) return; if (nm_system_gentoo_conf_type == GENTOO_CONF_TYPE_IPROUTE) { snprintf (buf, 100, "/sbin/ip address flush dev %s", nm_device_get_iface (dev)); } else if (nm_system_gentoo_conf_type == GENTOO_CONF_TYPE_IFCONFIG) { // FIXME: find the correct command /* See note above */ snprintf (buf, 100, "/bin/false"); } else { snprintf (buf, 100, "/bin/false"); } nm_spawn_process (buf); } /* * 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 * */ gboolean nm_system_device_setup_static_ip4_config (NMDevice *dev) { syslog (LOG_WARNING, "nm_system_device_setup_static_ip4_config() is not implemented yet for this distribution.\n"); } /* * nm_system_enable_loopback * * Bring up the loopback interface * */ void nm_system_enable_loopback (void) { if (nm_system_gentoo_conf_type == GENTOO_CONF_TYPE_IPROUTE) { 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"); } else if (nm_system_gentoo_conf_type == GENTOO_CONF_TYPE_IFCONFIG) { nm_spawn_process ("/sbin/ifconfig lo 127.0.0.1 up"); nm_spawn_process ("/sbin/route add -net 127.0.0.0 netmask 255.0.0.0 gw 127.0.0.1 dev lo"); } } /* * nm_system_delete_default_route * * Remove the old default route in preparation for a new one * */ void nm_system_delete_default_route (void) { if (nm_system_gentoo_conf_type == GENTOO_CONF_TYPE_IPROUTE) { nm_spawn_process ("/sbin/ip route del default"); } else if (nm_system_gentoo_conf_type == GENTOO_CONF_TYPE_IFCONFIG) { nm_spawn_process ("/sbin/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_device_update_config_info * * 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_update_config_info (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; guint32 ip4_address = 0; guint32 ip4_netmask = 0; guint32 ip4_gateway = 0; guint32 ip4_broadcast = 0; g_return_if_fail (dev != NULL); /* We use DHCP on an interface unless told not to */ nm_device_config_set_use_dhcp (dev, TRUE); nm_device_config_set_ip4_address (dev, 0); nm_device_config_set_ip4_gateway (dev, 0); nm_device_config_set_ip4_netmask (dev, 0); nm_device_config_set_ip4_broadcast (dev, 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; if (!(file = fopen (cfg_file_path, "r"))) { g_free (cfg_file_path); return; } 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) { syslog (LOG_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, " "); ip4_broadcast = inet_addr (confToken); 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_device_config_set_use_dhcp (dev, use_dhcp); if (ip4_address) nm_device_config_set_ip4_address (dev, ip4_address); if (ip4_gateway) nm_device_config_set_ip4_gateway (dev, ip4_gateway); if (ip4_netmask) nm_device_config_set_ip4_netmask (dev, ip4_netmask); if (ip4_broadcast) nm_device_config_set_ip4_broadcast (dev, ip4_broadcast); } }