Initial version of a SuSE backend

[Kay Sievers <kay sievers vrfy org>]

Hi,
here is a first rough cut on a SuSE backend for NetworkManager. I got it
running and it can successfully change over from wired to wireless. :)
It's only a one night hack, so don't expect too much.

(The currently SuSE shipped D-BUS, can't authorize the on_console user.
So if anyone wants to try this, the policy-file needs to be to adapted.
We will add the missing stuff to D-BUS soon.)

Btw: NM seems to read the config files for static setups, but static
configurations are not supported until now, or do I miss something?

Thanks,
Kay

Index: configure.in
===================================================================
RCS file: /cvs/gnome/NetworkManager/configure.in,v
retrieving revision 1.78
diff -u -p -r1.78 configure.in
--- configure.in	16 May 2005 17:24:55 -0000	1.78
+++ configure.in	8 Jun 2005 00:53:00 -0000
@@ -40,10 +40,10 @@ AC_DEFINE_UNQUOTED(GETTEXT_PACKAGE,"$GET
 ALL_LINGUAS="bs cs da de el en_CA es fr gu hr hu it ja nb ne nl no pa pt_BR rw sk sq sr sr Latn sv uk wa zh_CN zh_TW"
 AM_GLIB_GNU_GETTEXT
 
-AC_ARG_WITH(distro, AC_HELP_STRING([--with-distro=DISTRO], [Specify the Linux distribution to target: One of redhat, gentoo, debian, or slackware]))
+AC_ARG_WITH(distro, AC_HELP_STRING([--with-distro=DISTRO], [Specify the Linux distribution to target: One of redhat, suse, gentoo, debian, or slackware]))
 if test "z$with_distro" = "z"; then
-	AC_CHECK_FILE(/etc/mandrake-release,with_distro="mandrake")
 	AC_CHECK_FILE(/etc/redhat-release,with_distro="redhat")
+	AC_CHECK_FILE(/etc/SuSE-release,with_distro="suse")
 	AC_CHECK_FILE(/etc/fedora-release,with_distro="redhat")
 	AC_CHECK_FILE(/etc/gentoo-release,with_distro="gentoo")
 	AC_CHECK_FILE(/etc/debian_version,with_distro="debian")
@@ -56,7 +56,7 @@ if test "z$with_distro" = "z"; then
 	exit 1
 else
 	case $with_distro in
-		redhat|gentoo|debian|slackware) ;;
+		redhat|suse|gentoo|debian|slackware) ;;
 		*)
 			echo "Your distribution (${with_distro}) is not yet supported!  (patches welcome)"
 			exit 1
@@ -64,9 +64,9 @@ else
 	esac
 fi
 AM_CONDITIONAL(TARGET_REDHAT, test x"$with_distro" = xredhat)
+AM_CONDITIONAL(TARGET_SUSE, test x"$with_distro" = xsuse)
 AM_CONDITIONAL(TARGET_GENTOO, test x"$with_distro" = xgentoo)
 AM_CONDITIONAL(TARGET_DEBIAN, test x"$with_distro" = xdebian)
-AM_CONDITIONAL(TARGET_MANDRAKE, test x"$with_distro" = xmandrake)
 AM_CONDITIONAL(TARGET_SLACKWARE, test x"$with_distro" = xslackware)
 
 AC_CHECK_HEADER(iwlib.h, [],
Index: src/backends/Makefile.am
===================================================================
RCS file: /cvs/gnome/NetworkManager/src/backends/Makefile.am,v
retrieving revision 1.3
diff -u -p -r1.3 Makefile.am
--- src/backends/Makefile.am	16 May 2005 18:35:20 -0000	1.3
+++ src/backends/Makefile.am	8 Jun 2005 00:53:03 -0000
@@ -10,6 +10,12 @@ libnmbackend_la_SOURCES +=	NetworkManage
 						shvar.h
 endif
 
+if TARGET_SUSE
+libnmbackend_la_SOURCES +=	NetworkManagerSuSE.c				\
+						shvar.c				\
+						shvar.h
+endif
+
 if TARGET_GENTOO
 libnmbackend_la_SOURCES +=	NetworkManagerGentoo.c
 endif
@@ -36,5 +42,3 @@ libnmbackend_la_CPPFLAGS =	$(DBUS_CFLAGS
 					-DDATADIR=\"$(datadir)\"			\
 					-DSYSCONFDIR=\"$(sysconfdir)\"
 
-
-
Index: src/backends/NetworkManagerSuSE.c
===================================================================
--- /dev/null	2005-06-05 17:34:46.000000000 +0200
+++ src/backends/NetworkManagerSuSE.c	2005-06-07 18:40:01.000000000 +0200
@@ -0,0 +1,565 @@
+/* NetworkManager -- Network link manager
+ *
+ * Dan Williams <dcbw redhat com>
+ * Kay Sievers <kay sievers suse de>
+ *
+ * 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 2005 SuSE GmbH
+ */
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <signal.h>
+#include <sys/stat.h>
+#include <arpa/inet.h>
+#include "NetworkManagerSystem.h"
+#include "NetworkManagerUtils.h"
+#include "NetworkManagerDevice.h"
+#include "nm-utils.h"
+#include "shvar.h"
+
+/*
+ * nm_system_init
+ *
+ * Initializes the distribution-specific system backend
+ *
+ */
+void nm_system_init (void)
+{
+	/* Kill any dhclients lying around */
+	nm_system_kill_all_dhcp_daemons ();
+}
+
+
+/*
+ * 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_add_default_route_via_device
+ *
+ * Add default route to the given 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_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_device_has_active_routes
+ *
+ * Find out whether the specified device has any routes in the routing
+ * table.
+ *
+ */
+gboolean nm_system_device_has_active_routes (NMDevice *dev)
+{
+	return (FALSE);
+}
+
+
+/*
+ * 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_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 scope host label loopback");
+}
+
+
+/*
+ * 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_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_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");
+}
+
+
+/*
+ * nm_system_kill_all_dhcp_daemons
+ *
+ * Kill all DHCP daemons currently running, done at startup.
+ *
+ */
+void nm_system_kill_all_dhcp_daemons (void)
+{
+}
+
+
+/*
+ * nm_system_update_dns
+ *
+ * Invalidate the nscd host cache, if it exists, since
+ * we changed resolv.conf.
+ *
+ */
+void nm_system_update_dns (void)
+{
+#ifdef NM_NO_NAMED
+	if (nm_spawn_process ("/etc/init.d/nscd status") != 0)
+		nm_spawn_process ("/etc/init.d/nscd restart");
+
+	nm_info ("Clearing nscd hosts cache.");
+	nm_spawn_process ("/usr/sbin/nscd -i hosts");
+#else
+	nm_spawn_process ("/usr/bin/killall -q nscd");
+#endif
+}
+
+
+/*
+ * nm_system_load_device_modules
+ *
+ * Load any network adapter kernel modules that we need to, since Fedora doesn't
+ * autoload them at this time.
+ *
+ */
+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)
+{
+	FILE 		*fp  = NULL;
+
+	if ((fp = fopen ("/var/run/mdnsd.pid", "rt")))
+	{
+		int pid;
+		int res = fscanf (fp, "%d", &pid);
+		fclose (fp);
+		if (res == 1)
+		{
+			nm_info ("Restarting mdnsd.");
+			kill (pid, SIGUSR1);
+		}
+	}
+}
+
+
+/*
+ * 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)
+{
+	char *buf;
+	char	*addr;
+	struct ether_addr hw_addr;
+	unsigned char eui[8];
+
+	nm_device_get_hw_address(dev, &hw_addr);
+
+	memcpy (eui, &(hw_addr.ether_addr_octet), sizeof (hw_addr.ether_addr_octet));
+	memmove (eui+5, eui+3, 3);
+	eui[3] = 0xff;
+	eui[4] = 0xfe;
+	eui[0] ^= 2;
+
+	/* Add the default link-local IPv6 address to a device */
+	buf = g_strdup_printf ("/sbin/ip -6 address add fe80::%x%02x:%x%02x:%x%02x:%x%02x/64 dev %s",
+						eui[0], eui[1], eui[2], eui[3], eui[4], eui[5],
+						eui[6], eui[7], nm_device_get_iface (dev));
+	nm_spawn_process (buf);
+	g_free (buf);
+}
+
+
+typedef struct SuSESystemConfigData
+{
+	NMIP4Config *	config;
+	gboolean		use_dhcp;
+} SuSESystemConfigData;
+
+/*
+ * nm_system_device_get_system_config
+ *
+ * Read in the config file for a device.
+ *
+ */
+void *nm_system_device_get_system_config (NMDevice *dev)
+{
+	char *cfg_file_path = NULL;
+	char mac[18];
+	struct stat statbuf;
+	shvarFile *file;
+	char *buf = NULL;
+	SuSESystemConfigData *sys_data = NULL;
+	struct ether_addr addr;
+	FILE *f = NULL;
+	char buffer[512];
+	gboolean error = FALSE;
+
+	g_return_val_if_fail (dev != NULL, NULL);
+
+	/* SuSE store this information in /etc/sysconfig/network/ifcfg-<MAC address> */
+
+	sys_data = g_malloc0 (sizeof (SuSESystemConfigData));
+	sys_data->use_dhcp = TRUE;
+
+	memset (&addr, 0, sizeof(addr));
+	nm_device_get_hw_address (dev, &addr);
+	sprintf (mac, "%02x:%02x:%02x:%02x:%02x:%02x",
+			addr.ether_addr_octet[0], addr.ether_addr_octet[1],
+			addr.ether_addr_octet[2], addr.ether_addr_octet[3],
+			addr.ether_addr_octet[4], addr.ether_addr_octet[5]);
+	cfg_file_path = g_strdup_printf (SYSCONFDIR"/sysconfig/network/ifcfg-eth-id-%s", mac);
+	if (!cfg_file_path)
+		return sys_data;
+	if (stat(cfg_file_path, &statbuf) == 0)
+		goto found;
+
+	g_free(cfg_file_path);
+	cfg_file_path = g_strdup_printf (SYSCONFDIR"/sysconfig/network/ifcfg-wlan-id-%s", mac);
+	if (!cfg_file_path)
+		return sys_data;
+	if (stat(cfg_file_path, &statbuf) == 0)
+		goto found;
+
+	g_free(cfg_file_path);
+	cfg_file_path = g_strdup_printf (SYSCONFDIR"/sysconfig/network/ifcfg-%s", nm_device_get_iface (dev));
+	if (!cfg_file_path)
+		return sys_data;
+	if (stat(cfg_file_path, &statbuf) == 0)
+		goto found;
+
+	g_free(mac);
+	g_free (cfg_file_path);
+	return sys_data;
+
+found:
+	nm_debug ("found config %s for if %s", cfg_file_path, nm_device_get_iface (dev));
+	if (!(file = svNewFile (cfg_file_path)))
+	{
+		g_free (cfg_file_path);
+		return sys_data;
+	}
+	g_free (cfg_file_path);
+
+	if ((buf = svGetValue (file, "BOOTPROTO")))
+	{
+		if (strcasecmp (buf, "dhcp"))
+			sys_data->use_dhcp = FALSE;
+		free (buf);
+	}
+
+	sys_data->config = nm_ip4_config_new ();
+
+	if (!(sys_data->use_dhcp))
+	{
+		if ((buf = svGetValue (file, "IPADDR")))
+		{
+			nm_ip4_config_set_address (sys_data->config, inet_addr (buf));
+			free (buf);
+		}
+		else
+		{
+			nm_warning ("Network configuration for device '%s' was invalid (non-DHCP configuration, "
+						"but no IP address specified.  Will use DHCP instead.", nm_device_get_iface (dev));
+			error = TRUE;
+			goto out;
+		}
+
+		if ((buf = svGetValue (file, "NETMASK")))
+		{
+			nm_ip4_config_set_netmask (sys_data->config, inet_addr (buf));
+			free (buf);
+		}
+		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));
+		}
+
+		if ((buf = svGetValue (file, "BROADCAST")))
+		{
+			nm_ip4_config_set_broadcast (sys_data->config, inet_addr (buf));
+			free (buf);
+		}
+		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);
+		}
+
+		buf = NULL;
+		if ((f = fopen ("/etc/sysconfig/network/routes", "r")))
+		{
+			while (fgets (buffer, 512, f) && !feof (f))
+			{
+				buf = strtok(buffer, " ");
+				if (strcmp(buf, "default") == 0)
+				{
+					buf = strtok(NULL, " ");
+					if (buf)
+						nm_ip4_config_set_gateway (sys_data->config, inet_addr (buf));
+					break;
+				}
+			}
+			fclose (f);
+		}
+		if (!buf)
+		{
+			nm_warning ("Network configuration for device '%s' was invalid (non-DHCP configuration, "
+						"but no gateway specified.  Will use DHCP instead.", nm_device_get_iface (dev));
+			error = TRUE;
+			goto out;
+		}
+	}
+
+out:
+	svCloseFile (file);
+
+	if (error)
+	{
+		sys_data->use_dhcp = TRUE;
+		/* Clear out the config */
+		nm_ip4_config_unref (sys_data->config);
+		sys_data->config = NULL;
+	}
+
+	nm_debug ("------ Config (%s)", nm_device_get_iface (dev));
+	nm_debug ("    DHCP=%u", sys_data->use_dhcp);
+	nm_debug ("    ADDR=0x%08x", GUINT_FROM_BE(nm_ip4_config_get_address (sys_data->config)));
+	nm_debug ("    GW=  0x%08x", GUINT_FROM_BE(nm_ip4_config_get_gateway (sys_data->config)));
+	nm_debug ("    NM=  0x%08x", GUINT_FROM_BE(nm_ip4_config_get_netmask (sys_data->config)));
+	nm_debug ("---------------------\n");
+
+	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)
+{
+	SuSESystemConfigData *sys_data = (SuSESystemConfigData *)system_config_data;
+
+	g_return_if_fail (dev != NULL);
+
+	if (!sys_data)
+		return;
+
+	if (sys_data->config)
+		nm_ip4_config_unref (sys_data->config);
+}
+
+
+/*
+ * nm_system_device_get_use_dhcp
+ *
+ * Return whether the distro-specific system config tells us to use
+ * dhcp for this device.
+ *
+ */
+gboolean nm_system_device_get_use_dhcp (NMDevice *dev)
+{
+	SuSESystemConfigData	*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;
+}
+
+
+NMIP4Config *nm_system_device_new_ip4_system_config (NMDevice *dev)
+{
+	SuSESystemConfigData	*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;
+}
+