allow programs in /lib/udev called without the path

[elogind.git] / udev_add.c

diff --git a/udev_add.c b/udev_add.c
index 9764cb9bcd6c07aabbe625ca07d8b6ebddde0d78..128917e519db9457720fdca27c15ebc9ca32a76c 100644 (file)
--- a/udev_add.c
+++ b/udev_add.c
@@ -1,10 +1,8 @@
 /*
  * udev-add.c
  *
- * Userspace devfs
- *
  * Copyright (C) 2003 Greg Kroah-Hartman <greg@kroah.com>
- *
+ * Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
  *
  *     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
@@ -39,11 +37,9 @@
 #include "udev_libc_wrapper.h"
 #include "udev.h"
 #include "udev_utils.h"
-#include "udev_sysfs.h"
 #include "udev_version.h"
 #include "logging.h"
 #include "udev_rules.h"
-#include "udev_db.h"
 #include "udev_selinux.h"
 
 
@@ -52,40 +48,39 @@ int udev_make_node(struct udevice *udev, const char *file, dev_t devt, mode_t mo
        struct stat stats;
        int retval = 0;
 
+       switch (udev->type) {
+       case DEV_BLOCK:
+               mode |= S_IFBLK;
+               break;
+       case DEV_CLASS:
+               mode |= S_IFCHR;
+               break;
+       default:
+               dbg("unknown node type %c\n", udev->type);
+               return -EINVAL;
+       }
+
        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 == devt)) {
+       if ((stats.st_mode & S_IFMT) == (mode & S_IFMT) && (stats.st_rdev == devt)) {
                info("preserve file '%s', cause it has correct dev_t", file);
                selinux_setfilecon(file, udev->kernel_name, stats.st_mode);
                goto perms;
        }
 
        if (unlink(file) != 0)
-               dbg("unlink(%s) failed with error '%s'", file, strerror(errno));
+               err("unlink(%s) failed: %s", file, strerror(errno));
        else
                dbg("already present file '%s' unlinked", file);
 
 create:
-       switch (udev->type) {
-       case DEV_BLOCK:
-               mode |= S_IFBLK;
-               break;
-       case DEV_CLASS:
-               mode |= S_IFCHR;
-               break;
-       default:
-               dbg("unknown node type %c\n", udev->type);
-               return -EINVAL;
-       }
-
        selinux_setfscreatecon(file, udev->kernel_name, mode);
        retval = mknod(file, mode, devt);
        selinux_resetfscreatecon();
        if (retval != 0) {
-               err("mknod(%s, %#o, %u, %u) failed with error '%s'",
+               err("mknod(%s, %#o, %u, %u) failed: %s",
                    file, mode, major(devt), minor(devt), strerror(errno));
                goto exit;
        }
@@ -93,14 +88,14 @@ create:
 perms:
        dbg("chmod(%s, %#o)", file, mode);
        if (chmod(file, mode) != 0) {
-               dbg("chmod(%s, %#o) failed with error '%s'", file, mode, strerror(errno));
+               err("chmod(%s, %#o) failed: %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'",
+                       err("chown(%s, %u, %u) failed: %s",
                            file, uid, gid, strerror(errno));
                        goto exit;
                }
@@ -218,14 +213,14 @@ static int create_node(struct udevice *udev, struct sysfs_class_device *class_de
 
                strlcat(linktarget, &udev->name[tail], sizeof(linktarget));
 
-               dbg("symlink(%s, %s)", linktarget, filename);
+               info("creating symlink '%s' to '%s'", filename, linktarget);
                if (!udev->test_run) {
                        unlink(filename);
                        selinux_setfscreatecon(filename, NULL, S_IFLNK);
                        retval = symlink(linktarget, filename);
                        selinux_resetfscreatecon();
                        if (retval != 0)
-                               dbg("symlink(%s, %s) failed with error '%s'",
+                               err("symlink(%s, %s) failed: %s",
                                    linktarget, filename, strerror(errno));
                }
        }
@@ -247,7 +242,7 @@ static int rename_net_if(struct udevice *udev)
 
        sk = socket(PF_INET, SOCK_DGRAM, 0);
        if (sk < 0) {
-               dbg("error opening socket");
+               err("error opening socket: %s", strerror(errno));
                return -1;
        }
 
@@ -257,7 +252,7 @@ static int rename_net_if(struct udevice *udev)
 
        retval = ioctl(sk, SIOCSIFNAME, &ifr);
        if (retval != 0)
-               dbg("error changing net interface name");
+               err("error changing net interface name: %s", strerror(errno));
        close(sk);
 
        return retval;
@@ -268,22 +263,7 @@ int udev_add_device(struct udevice *udev, struct sysfs_class_device *class_dev)
        char *pos;
        int retval = 0;
 
-       if (udev->type == DEV_BLOCK || udev->type == DEV_CLASS) {
-               udev->devt = get_devt(class_dev);
-               if (!udev->devt) {
-                       dbg("no dev-file found, do nothing");
-                       return 0;
-               }
-       }
-
-       udev_rules_get_name(udev, class_dev);
-       if (udev->ignore_device) {
-               dbg("device event will be ignored");
-               return 0;
-       }
-
        dbg("adding name='%s'", udev->name);
-
        selinux_init();
 
        if (udev->type == DEV_BLOCK || udev->type == DEV_CLASS) {
@@ -306,6 +286,7 @@ int udev_add_device(struct udevice *udev, struct sysfs_class_device *class_dev)
                        if (retval != 0)
                                goto exit;
 
+                       info("renamed netif to '%s'", udev->name);
                        /* we've changed the name, now fake the devpath, cause the
                         * original kernel name sleeps with the fishes and we don't
                         * get an event from the kernel with the new name
@@ -314,6 +295,7 @@ int udev_add_device(struct udevice *udev, struct sysfs_class_device *class_dev)
                        if (pos != NULL) {
                                pos[1] = '\0';
                                strlcat(udev->devpath, udev->name, sizeof(udev->devpath));
+                               strlcpy(udev->kernel_name, udev->name, sizeof(udev->kernel_name));
                                setenv("DEVPATH", udev->devpath, 1);
                                setenv("INTERFACE", udev->name, 1);
                        }
@@ -325,6 +307,5 @@ int udev_add_device(struct udevice *udev, struct sysfs_class_device *class_dev)
 
 exit:
        selinux_exit();
-
        return retval;
 }