[thirdparty/systemd.git] / udev_add.c

/*
 * udev-add.c
 *
 * Userspace devfs
 *
 * Copyright (C) 2003 Greg Kroah-Hartman <greg@kroah.com>
 *
 *
 *	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 version 2 of the License.
 * 
 *	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.,
 *	675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */

#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <grp.h>
#include <net/if.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <linux/sockios.h>
#ifndef __KLIBC__
#include <pwd.h>
#include <utmp.h>
#endif

#include "libsysfs/sysfs/libsysfs.h"
#include "udev.h"
#include "udev_lib.h"
#include "udev_version.h"
#include "logging.h"
#include "namedev.h"
#include "udevdb.h"
#include "klibc_fixups.h"

#include "selinux.h"

/*
 * the major/minor of a device is stored in a file called "dev"
 * The number is stored in decimal values in the format: M:m
 */
static int get_major_minor(struct sysfs_class_device *class_dev, struct udevice *udev)
{
	struct sysfs_attribute *attr = NULL;

	attr = sysfs_get_classdev_attr(class_dev, "dev");
	if (attr == NULL)
		goto error;
	dbg("dev='%s'", attr->value);

	if (sscanf(attr->value, "%u:%u", &udev->major, &udev->minor) != 2)
		goto error;
	dbg("found major=%d, minor=%d", udev->major, udev->minor);

	return 0;
error:
	return -1;
}

static int create_path(char *file)
{
	char p[NAME_SIZE];
	char *pos;
	int retval;
	struct stat stats;
	
	strfieldcpy(p, file);
	pos = strchr(p+1, '/');
	while (1) {
		pos = strchr(pos+1, '/');
		if (pos == NULL)
			break;
		*pos = 0x00;
		if (stat(p, &stats)) {
			selinux_setfscreatecon(p, S_IFDIR);
			retval = mkdir(p, 0755);
			if (retval != 0) {
				dbg("mkdir(%s) failed with error '%s'",
				    p, strerror(errno));
				return retval;
			}
			dbg("created '%s'", p);
		} else {
			selinux_setfilecon(p, S_IFDIR);
		}
		*pos = '/';
	}
	return 0;
}

static int make_node(char *file, int major, int minor, unsigned int mode, uid_t uid, gid_t gid)
{
	struct stat stats;
	int retval = 0;

	if (stat(file, &stats) != 0)
		goto create;

	/* preserve node with already correct numbers, to not change the inode number */
	if (((stats.st_mode & S_IFMT) == S_IFBLK || (stats.st_mode & S_IFMT) == S_IFCHR) &&
	    (stats.st_rdev == makedev(major, minor))) {
		dbg("preserve file '%s', cause it has correct dev_t", file);
		selinux_setfilecon(file,stats.st_mode);
		goto perms;
	}

	if (unlink(file) != 0)
		dbg("unlink(%s) failed with error '%s'", file, strerror(errno));
	else
		dbg("already present file '%s' unlinked", file);

create:
	selinux_setfscreatecon(file, mode);
	retval = mknod(file, mode, makedev(major, minor));
	if (retval != 0) {
		dbg("mknod(%s, %#o, %u, %u) failed with error '%s'",
		    file, mode, major, minor, strerror(errno));
		goto exit;
	}

perms:
	dbg("chmod(%s, %#o)", file, mode);
	if (chmod(file, mode) != 0) {
		dbg("chmod(%s, %#o) failed with error '%s'", file, mode, strerror(errno));
		goto exit;
	}

	if (uid != 0 || gid != 0) {
		dbg("chown(%s, %u, %u)", file, uid, gid);
		if (chown(file, uid, gid) != 0) {
			dbg("chown(%s, %u, %u) failed with error '%s'",
			    file, uid, gid, strerror(errno));
			goto exit;
		}
	}

exit:
	return retval;
}

static int create_node(struct udevice *udev)
{
	char filename[NAME_SIZE];
	char linkname[NAME_SIZE];
	char linktarget[NAME_SIZE];
	char partitionname[NAME_SIZE];
	uid_t uid = 0;
	gid_t gid = 0;
	int i;
	int tail;
	char *pos;
	int len;

	strfieldcpy(filename, udev_root);
	strfieldcat(filename, udev->name);

	switch (udev->type) {
	case 'b':
		udev->mode |= S_IFBLK;
		break;
	case 'c':
	case 'u':
		udev->mode |= S_IFCHR;
		break;
	case 'p':
		udev->mode |= S_IFIFO;
		break;
	default:
		dbg("unknown node type %c\n", udev->type);
		return -EINVAL;
	}

	/* create parent directories if needed */
	if (strrchr(udev->name, '/'))
		create_path(filename);

	if (udev->owner[0] != '\0') {
		char *endptr;
		unsigned long id = strtoul(udev->owner, &endptr, 10);
		if (endptr[0] == '\0')
			uid = (uid_t) id;
		else {
			struct passwd *pw;

			pw = getpwnam(udev->owner);
			if (pw == NULL)
				dbg("specified user unknown '%s'", udev->owner);
			else
				uid = pw->pw_uid;
		}
	}

	if (udev->group[0] != '\0') {
		char *endptr;
		unsigned long id = strtoul(udev->group, &endptr, 10);
		if (endptr[0] == '\0')
			gid = (gid_t) id;
		else {
			struct group *gr = getgrnam(udev->group);
			if (gr == NULL)
				dbg("specified group unknown '%s'", udev->group);
			else
				gid = gr->gr_gid;
		}
	}

	if (!udev->test_run) {
		info("creating device node '%s'", filename);
		if (make_node(filename, udev->major, udev->minor, udev->mode, uid, gid) != 0)
			goto error;
	} else {
		info("creating device node '%s', major = '%d', minor = '%d', "
		     "mode = '%#o', uid = '%d', gid = '%d'", filename,
		     udev->major, udev->minor, (mode_t)udev->mode, uid, gid);
	}

	/* create all_partitions if requested */
	if (udev->partitions > 0) {
		info("creating device partition nodes '%s[1-%i]'", filename, udev->partitions);
		if (!udev->test_run) {
			for (i = 1; i <= udev->partitions; i++) {
				strfieldcpy(partitionname, filename);
				strintcat(partitionname, i);
				make_node(partitionname, udev->major, udev->minor + i, udev->mode, uid, gid);
			}
		}
	}

	/* create symlink(s) if requested */
	foreach_strpart(udev->symlink, " ", pos, len) {
		strfieldcpymax(linkname, pos, len+1);
		strfieldcpy(filename, udev_root);
		strfieldcat(filename, linkname);
		dbg("symlink '%s' to node '%s' requested", filename, udev->name);
		if (!udev->test_run)
			if (strrchr(linkname, '/'))
				create_path(filename);

		/* optimize relative link */
		linktarget[0] = '\0';
		i = 0;
		tail = 0;
		while ((udev->name[i] == linkname[i]) && udev->name[i]) {
			if (udev->name[i] == '/')
				tail = i+1;
			i++;
		}
		while (linkname[i] != '\0') {
			if (linkname[i] == '/')
				strfieldcat(linktarget, "../");
			i++;
		}

		strfieldcat(linktarget, &udev->name[tail]);

		dbg("symlink(%s, %s)", linktarget, filename);
		if (!udev->test_run) {
			selinux_setfscreatecon(filename, S_IFLNK);
			unlink(filename);
			if (symlink(linktarget, filename) != 0)
				dbg("symlink(%s, %s) failed with error '%s'",
				    linktarget, filename, strerror(errno));
		}
	}

	return 0;
error:
	return -1;
}

static int rename_net_if(struct udevice *udev)
{
	int sk;
	struct ifreq ifr;
	int retval;

	dbg("changing net interface name from '%s' to '%s'", udev->kernel_name, udev->name);
	if (udev->test_run)
		return 0;

	sk = socket(PF_INET, SOCK_DGRAM, 0);
	if (sk < 0) {
		dbg("error opening socket");
		return -1;
	}

	memset(&ifr, 0x00, sizeof(struct ifreq));
	strfieldcpy(ifr.ifr_name, udev->kernel_name);
	strfieldcpy(ifr.ifr_newname, udev->name);

	retval = ioctl(sk, SIOCSIFNAME, &ifr);
	if (retval != 0)
		dbg("error changing net interface name");
	close(sk);

	return retval;
}

int udev_add_device(struct udevice *udev, struct sysfs_class_device *class_dev)
{
	char *pos;
	int retval = 0;

	if (udev->type == 'b' || udev->type == 'c') {
		retval = get_major_minor(class_dev, udev);
		if (retval != 0) {
			dbg("no dev-file found, do nothing");
			return 0;
		}
	}

	if (namedev_name_device(udev, class_dev) != 0)
		goto exit;

	dbg("adding name='%s'", udev->name);

	selinux_init();

	if (udev->type == 'b' || udev->type == 'c') {
		retval = create_node(udev);
		if (retval != 0)
			goto exit;

		if (udevdb_add_dev(udev) != 0)
			dbg("udevdb_add_dev failed, but we create the node anyway, "
			    "remove might not work for custom names");

		/* use full path to the environment */
		snprintf(udev->devname, NAME_SIZE-1, "%s%s", udev_root, udev->name);

	} else if (udev->type == 'n') {
		/* look if we want to change the name of the netif */
		if (strcmp(udev->name, udev->kernel_name) != 0) {
			retval = rename_net_if(udev);
			if (retval != 0)
				goto exit;

			/* we've changed the name, now fake the devpath,
			 * cause original kernel name sleeps with the fishes
			 * and we don't get any event from the kernel now
			 */
			pos = strrchr(udev->devpath, '/');
			if (pos != NULL) {
				pos[1] = '\0';
				strfieldcat(udev->devpath, udev->name);
				setenv("DEVPATH", udev->devpath, 1);
			}

			/* use netif name for the environment */
			strfieldcpy(udev->devname, udev->name);
		}
	}

exit:
	selinux_restore();

	return retval;
}
Commit	Line	Data
ea733a2f GKH	1	/*
	2	* udev-add.c
	3	*
	4	* Userspace devfs
	5	*
	6	* Copyright (C) 2003 Greg Kroah-Hartman <greg@kroah.com>
	7	*
	8	*
	9	* This program is free software; you can redistribute it and/or modify it
	10	* under the terms of the GNU General Public License as published by the
	11	* Free Software Foundation version 2 of the License.
	12	*
	13	* This program is distributed in the hope that it will be useful, but
	14	* WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	16	* General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU General Public License along
	19	* with this program; if not, write to the Free Software Foundation, Inc.,
	20	* 675 Mass Ave, Cambridge, MA 02139, USA.
	21	*
	22	*/
	23
	24	#include <stdlib.h>
	25	#include <string.h>
	26	#include <stdio.h>
	27	#include <fcntl.h>
	28	#include <unistd.h>
	29	#include <errno.h>
32ff5bca	30	#include <sys/stat.h>
10950dfe GKH	31	#include <sys/types.h>
10950dfe GKH	32	#include <grp.h>
f61d732a KS	33	#include <net/if.h>
	34	#include <sys/socket.h>
	35	#include <sys/ioctl.h>
	36	#include <linux/sockios.h>
10950dfe GKH	37	#ifndef __KLIBC__
10950dfe GKH	38	#include <pwd.h>
534c853d	39	#include <utmp.h>
10950dfe	40	#endif
ea733a2f	41
c80da508	42	#include "libsysfs/sysfs/libsysfs.h"
ea733a2f	43	#include "udev.h"
c81b35c0	44	#include "udev_lib.h"
ea733a2f	45	#include "udev_version.h"
54988802	46	#include "logging.h"
ea733a2f	47	#include "namedev.h"
8e41d35d	48	#include "udevdb.h"
10950dfe	49	#include "klibc_fixups.h"
ea733a2f	50
9825617b HH	51	#include "selinux.h"
9825617b HH	52
707680b1 KS	53	/*
	54	* the major/minor of a device is stored in a file called "dev"
	55	* The number is stored in decimal values in the format: M:m
ea733a2f	56	*/
30defadd	57	static int get_major_minor(struct sysfs_class_device class_dev, struct udevice udev)
ea733a2f	58	{
5d4754f1	59	struct sysfs_attribute *attr = NULL;
ea733a2f	60
5d4754f1 DS	61	attr = sysfs_get_classdev_attr(class_dev, "dev");
5d4754f1 DS	62	if (attr == NULL)
bbbe503e	63	goto error;
5d4754f1	64	dbg("dev='%s'", attr->value);
ea733a2f	65
5d4754f1	66	if (sscanf(attr->value, "%u:%u", &udev->major, &udev->minor) != 2)
bbbe503e	67	goto error;
f7b4eca4	68	dbg("found major=%d, minor=%d", udev->major, udev->minor);
ea733a2f	69
bbbe503e KS	70	return 0;
	71	error:
	72	return -1;
ea733a2f GKH	73	}
ea733a2f GKH	74
3d150dfb KS	75	static int create_path(char *file)
	76	{
	77	char p[NAME_SIZE];
	78	char *pos;
	79	int retval;
	80	struct stat stats;
	81
c472e3c8	82	strfieldcpy(p, file);
3d150dfb KS	83	pos = strchr(p+1, '/');
	84	while (1) {
	85	pos = strchr(pos+1, '/');
	86	if (pos == NULL)
	87	break;
	88	*pos = 0x00;
	89	if (stat(p, &stats)) {
9825617b	90	selinux_setfscreatecon(p, S_IFDIR);
3d150dfb	91	retval = mkdir(p, 0755);
c5118442	92	if (retval != 0) {
3d150dfb KS	93	dbg("mkdir(%s) failed with error '%s'",
	94	p, strerror(errno));
	95	return retval;
	96	}
	97	dbg("created '%s'", p);
9825617b HH	98	} else {
9825617b HH	99	selinux_setfilecon(p, S_IFDIR);
3d150dfb KS	100	}
	101	*pos = '/';
	102	}
	103	return 0;
	104	}
	105
49747bdc	106	static int make_node(char *file, int major, int minor, unsigned int mode, uid_t uid, gid_t gid)
50e5de03	107	{
49747bdc KS	108	struct stat stats;
	109	int retval = 0;
	110
	111	if (stat(file, &stats) != 0)
	112	goto create;
	113
	114	/* preserve node with already correct numbers, to not change the inode number */
	115	if (((stats.st_mode & S_IFMT) == S_IFBLK \|\| (stats.st_mode & S_IFMT) == S_IFCHR) &&
	116	(stats.st_rdev == makedev(major, minor))) {
	117	dbg("preserve file '%s', cause it has correct dev_t", file);
9825617b	118	selinux_setfilecon(file,stats.st_mode);
49747bdc KS	119	goto perms;
	120	}
	121
	122	if (unlink(file) != 0)
	123	dbg("unlink(%s) failed with error '%s'", file, strerror(errno));
	124	else
	125	dbg("already present file '%s' unlinked", file);
50e5de03	126
49747bdc	127	create:
9825617b	128	selinux_setfscreatecon(file, mode);
49747bdc	129	retval = mknod(file, mode, makedev(major, minor));
50e5de03 KS	130	if (retval != 0) {
50e5de03 KS	131	dbg("mknod(%s, %#o, %u, %u) failed with error '%s'",
49747bdc	132	file, mode, major, minor, strerror(errno));
bbbe503e	133	goto exit;
50e5de03 KS	134	}
50e5de03 KS	135
49747bdc KS	136	perms:
	137	dbg("chmod(%s, %#o)", file, mode);
	138	if (chmod(file, mode) != 0) {
	139	dbg("chmod(%s, %#o) failed with error '%s'", file, mode, strerror(errno));
bbbe503e	140	goto exit;
50e5de03 KS	141	}
	142
	143	if (uid != 0 \|\| gid != 0) {
49747bdc KS	144	dbg("chown(%s, %u, %u)", file, uid, gid);
49747bdc KS	145	if (chown(file, uid, gid) != 0) {
50e5de03	146	dbg("chown(%s, %u, %u) failed with error '%s'",
49747bdc	147	file, uid, gid, strerror(errno));
bbbe503e	148	goto exit;
50e5de03 KS	149	}
	150	}
	151
bbbe503e KS	152	exit:
bbbe503e KS	153	return retval;
50e5de03 KS	154	}
50e5de03 KS	155
7a947ce5	156	static int create_node(struct udevice *udev)
97853b4f	157	{
9fe3f9a9 KS	158	char filename[NAME_SIZE];
	159	char linkname[NAME_SIZE];
	160	char linktarget[NAME_SIZE];
	161	char partitionname[NAME_SIZE];
e308ebb7 GKH	162	uid_t uid = 0;
e308ebb7 GKH	163	gid_t gid = 0;
3d150dfb KS	164	int i;
3d150dfb KS	165	int tail;
ef672b3d KS	166	char *pos;
ef672b3d KS	167	int len;
3d150dfb	168
c472e3c8	169	strfieldcpy(filename, udev_root);
7a947ce5	170	strfieldcat(filename, udev->name);
5840bc63	171
7a947ce5	172	switch (udev->type) {
1331c889	173	case 'b':
7a947ce5	174	udev->mode \|= S_IFBLK;
1331c889 GKH	175	break;
	176	case 'c':
	177	case 'u':
7a947ce5	178	udev->mode \|= S_IFCHR;
1331c889 GKH	179	break;
1331c889 GKH	180	case 'p':
7a947ce5	181	udev->mode \|= S_IFIFO;
1331c889 GKH	182	break;
1331c889 GKH	183	default:
7a947ce5	184	dbg("unknown node type %c\n", udev->type);
1331c889 GKH	185	return -EINVAL;
1331c889 GKH	186	}
0abf54fc	187
3d150dfb	188	/* create parent directories if needed */
7a947ce5	189	if (strrchr(udev->name, '/'))
3d150dfb	190	create_path(filename);
218eae87	191
7a947ce5	192	if (udev->owner[0] != '\0') {
c19a6b30	193	char *endptr;
7a947ce5	194	unsigned long id = strtoul(udev->owner, &endptr, 10);
765cbd97	195	if (endptr[0] == '\0')
c19a6b30	196	uid = (uid_t) id;
10950dfe	197	else {
5895eb31	198	struct passwd *pw;
534c853d	199
7a947ce5	200	pw = getpwnam(udev->owner);
765cbd97	201	if (pw == NULL)
7a947ce5	202	dbg("specified user unknown '%s'", udev->owner);
10950dfe GKH	203	else
	204	uid = pw->pw_uid;
	205	}
c19a6b30 KS	206	}
c19a6b30 KS	207
7a947ce5	208	if (udev->group[0] != '\0') {
c19a6b30	209	char *endptr;
7a947ce5	210	unsigned long id = strtoul(udev->group, &endptr, 10);
765cbd97	211	if (endptr[0] == '\0')
c19a6b30	212	gid = (gid_t) id;
10950dfe	213	else {
7a947ce5	214	struct group *gr = getgrnam(udev->group);
765cbd97	215	if (gr == NULL)
7a947ce5	216	dbg("specified group unknown '%s'", udev->group);
10950dfe GKH	217	else
	218	gid = gr->gr_gid;
	219	}
c19a6b30 KS	220	}
c19a6b30 KS	221
7a947ce5	222	if (!udev->test_run) {
50e5de03	223	info("creating device node '%s'", filename);
7a947ce5	224	if (make_node(filename, udev->major, udev->minor, udev->mode, uid, gid) != 0)
bbbe503e	225	goto error;
ab2e5bd9 GKH	226	} else {
	227	info("creating device node '%s', major = '%d', minor = '%d', "
	228	"mode = '%#o', uid = '%d', gid = '%d'", filename,
7a947ce5	229	udev->major, udev->minor, (mode_t)udev->mode, uid, gid);
ab2e5bd9	230	}
50e5de03	231
bbbe503e	232	/* create all_partitions if requested */
7a947ce5 KS	233	if (udev->partitions > 0) {
	234	info("creating device partition nodes '%s[1-%i]'", filename, udev->partitions);
	235	if (!udev->test_run) {
	236	for (i = 1; i <= udev->partitions; i++) {
c58e36c0 KS	237	strfieldcpy(partitionname, filename);
c58e36c0 KS	238	strintcat(partitionname, i);
7a947ce5	239	make_node(partitionname, udev->major, udev->minor + i, udev->mode, uid, gid);
ab2e5bd9	240	}
50e5de03	241	}
3d150dfb KS	242	}
3d150dfb KS	243
bbbe503e	244	/* create symlink(s) if requested */
7a947ce5	245	foreach_strpart(udev->symlink, " ", pos, len) {
17794d77	246	strfieldcpymax(linkname, pos, len+1);
9fe3f9a9 KS	247	strfieldcpy(filename, udev_root);
9fe3f9a9 KS	248	strfieldcat(filename, linkname);
7a947ce5 KS	249	dbg("symlink '%s' to node '%s' requested", filename, udev->name);
7a947ce5 KS	250	if (!udev->test_run)
9fe3f9a9 KS	251	if (strrchr(linkname, '/'))
	252	create_path(filename);
	253
	254	/* optimize relative link */
	255	linktarget[0] = '\0';
	256	i = 0;
	257	tail = 0;
7a947ce5 KS	258	while ((udev->name[i] == linkname[i]) && udev->name[i]) {
7a947ce5 KS	259	if (udev->name[i] == '/')
9fe3f9a9 KS	260	tail = i+1;
	261	i++;
	262	}
	263	while (linkname[i] != '\0') {
	264	if (linkname[i] == '/')
	265	strfieldcat(linktarget, "../");
	266	i++;
	267	}
3d150dfb	268
7a947ce5	269	strfieldcat(linktarget, &udev->name[tail]);
3d150dfb	270
9fe3f9a9	271	dbg("symlink(%s, %s)", linktarget, filename);
7a947ce5	272	if (!udev->test_run) {
9825617b	273	selinux_setfscreatecon(filename, S_IFLNK);
49747bdc	274	unlink(filename);
bbbe503e	275	if (symlink(linktarget, filename) != 0)
9fe3f9a9 KS	276	dbg("symlink(%s, %s) failed with error '%s'",
9fe3f9a9 KS	277	linktarget, filename, strerror(errno));
4763256c	278	}
c19a6b30 KS	279	}
c19a6b30 KS	280
bbbe503e KS	281	return 0;
	282	error:
	283	return -1;
ea733a2f GKH	284	}
ea733a2f GKH	285
7a947ce5	286	static int rename_net_if(struct udevice *udev)
f61d732a KS	287	{
	288	int sk;
	289	struct ifreq ifr;
	290	int retval;
	291
7a947ce5 KS	292	dbg("changing net interface name from '%s' to '%s'", udev->kernel_name, udev->name);
7a947ce5 KS	293	if (udev->test_run)
bbbe503e KS	294	return 0;
bbbe503e KS	295
f61d732a KS	296	sk = socket(PF_INET, SOCK_DGRAM, 0);
	297	if (sk < 0) {
	298	dbg("error opening socket");
	299	return -1;
	300	}
	301
	302	memset(&ifr, 0x00, sizeof(struct ifreq));
7a947ce5 KS	303	strfieldcpy(ifr.ifr_name, udev->kernel_name);
7a947ce5 KS	304	strfieldcpy(ifr.ifr_newname, udev->name);
f61d732a	305
f61d732a KS	306	retval = ioctl(sk, SIOCSIFNAME, &ifr);
	307	if (retval != 0)
	308	dbg("error changing net interface name");
4a539daf	309	close(sk);
f61d732a KS	310
	311	return retval;
	312	}
	313
7a947ce5	314	int udev_add_device(struct udevice udev, struct sysfs_class_device class_dev)
ea733a2f	315	{
bbbe503e	316	char *pos;
707680b1	317	int retval = 0;
ea733a2f	318
7a947ce5 KS	319	if (udev->type == 'b' \|\| udev->type == 'c') {
7a947ce5 KS	320	retval = get_major_minor(class_dev, udev);
f61d732a	321	if (retval != 0) {
707680b1	322	dbg("no dev-file found, do nothing");
5d24c6ca	323	return 0;
f61d732a	324	}
ea733a2f GKH	325	}
ea733a2f GKH	326
7a947ce5	327	if (namedev_name_device(udev, class_dev) != 0)
30defadd GKH	328	goto exit;
30defadd GKH	329
7a947ce5	330	dbg("adding name='%s'", udev->name);
bbbe503e	331
9825617b	332	selinux_init();
5d24c6ca KS	333
5d24c6ca KS	334	if (udev->type == 'b' \|\| udev->type == 'c') {
7a947ce5	335	retval = create_node(udev);
c4603a07	336	if (retval != 0)
bbbe503e	337	goto exit;
9b28a52a	338
5d24c6ca KS	339	if (udevdb_add_dev(udev) != 0)
	340	dbg("udevdb_add_dev failed, but we create the node anyway, "
	341	"remove might not work for custom names");
f61d732a	342
5d24c6ca KS	343	/* use full path to the environment */
	344	snprintf(udev->devname, NAME_SIZE-1, "%s%s", udev_root, udev->name);
	345
	346	} else if (udev->type == 'n') {
	347	/* look if we want to change the name of the netif */
7a947ce5 KS	348	if (strcmp(udev->name, udev->kernel_name) != 0) {
7a947ce5 KS	349	retval = rename_net_if(udev);
c4603a07	350	if (retval != 0)
bbbe503e	351	goto exit;
5d24c6ca KS	352
	353	/* we've changed the name, now fake the devpath,
	354	* cause original kernel name sleeps with the fishes
	355	* and we don't get any event from the kernel now
bbbe503e	356	*/
7a947ce5	357	pos = strrchr(udev->devpath, '/');
bbbe503e KS	358	if (pos != NULL) {
bbbe503e KS	359	pos[1] = '\0';
7a947ce5	360	strfieldcat(udev->devpath, udev->name);
5d24c6ca	361	setenv("DEVPATH", udev->devpath, 1);
bbbe503e	362	}
9b28a52a	363
5d24c6ca KS	364	/* use netif name for the environment */
	365	strfieldcpy(udev->devname, udev->name);
	366	}
f61d732a	367	}
ea733a2f GKH	368
ea733a2f GKH	369	exit:
9825617b	370	selinux_restore();
30defadd	371
ea733a2f GKH	372	return retval;
ea733a2f GKH	373	}