[PATCH] udev - create all partitions of blockdevice

[elogind.git] / udev-add.c

diff --git a/udev-add.c b/udev-add.c
index 8867c8f5afc2ee5d6e125df73ea6a2ce4fa1a08b..3b3ebd5bbbcce4e397cc5fe1c9a8f7d016ac5daa 100644 (file)
--- a/udev-add.c
+++ b/udev-add.c
@@ -99,11 +99,44 @@ static int create_path(char *file)
        return 0;
 }
 
+static int make_node(char *filename, int major, int minor, unsigned int mode, uid_t uid, gid_t gid)
+{
+       int retval;
+
+       retval = mknod(filename, mode, makedev(major, minor));
+       if (retval != 0) {
+               dbg("mknod(%s, %#o, %u, %u) failed with error '%s'",
+                   filename, mode, major, minor, strerror(errno));
+               return retval;
+       }
+
+       dbg("chmod(%s, %#o)", filename, mode);
+       retval = chmod(filename, mode);
+       if (retval != 0) {
+               dbg("chmod(%s, %#o) failed with error '%s'",
+                   filename, mode, strerror(errno));
+               return retval;
+       }
+
+       if (uid != 0 || gid != 0) {
+               dbg("chown(%s, %u, %u)", filename, uid, gid);
+               retval = chown(filename, uid, gid);
+               if (retval != 0) {
+                       dbg("chown(%s, %u, %u) failed with error '%s'",
+                           filename, uid, gid, strerror(errno));
+                       return retval;
+               }
+       }
+
+       return 0;
+}
+
 static int create_node(struct udevice *dev, int fake)
 {
        struct stat stats;
        char filename[255];
        char linktarget[255];
+       char partitionname[255];
        char *linkname;
        char *symlinks;
        int retval = 0;
@@ -135,23 +168,6 @@ static int create_node(struct udevice *dev, int fake)
        if (strrchr(dev->name, '/'))
                create_path(filename);
 
-       info("creating device node '%s'", filename);
-       dbg("mknod(%s, %#o, %u, %u)", filename, dev->mode, dev->major, dev->minor);
-       if (!fake) {
-               retval = mknod(filename, dev->mode, makedev(dev->major, dev->minor));
-               if (retval != 0)
-                       dbg("mknod(%s, %#o, %u, %u) failed with error '%s'",
-                           filename, dev->mode, dev->major, dev->minor, strerror(errno));
-       }
-
-       dbg("chmod(%s, %#o)", filename, dev->mode);
-       if (!fake) {
-               retval = chmod(filename, dev->mode);
-               if (retval != 0)
-                       dbg("chmod(%s, %#o) failed with error '%s'",
-                           filename, dev->mode, strerror(errno));
-       }
-
        if (dev->owner[0] != '\0') {
                char *endptr;
                unsigned long id = strtoul(dev->owner, &endptr, 10);
@@ -180,12 +196,18 @@ static int create_node(struct udevice *dev, int fake)
                }
        }
 
-       if (uid != 0 || gid != 0) {
-               dbg("chown(%s, %u, %u)", filename, uid, gid);
-               retval = chown(filename, uid, gid);
-               if (retval != 0)
-                       dbg("chown(%s, %u, %u) failed with error '%s'",
-                           filename, uid, gid, strerror(errno));
+       if (!fake)
+               info("creating device node '%s'", filename);
+               make_node(filename, dev->major, dev->minor, dev->mode, uid, gid);
+
+       /* create partitions if requested */
+       if (dev->partitions > 0) {
+               info("creating device partition nodes '%s[1-%i]'", filename, dev->partitions);
+               for (i = 1; i <= dev->partitions; i++) {
+                       sprintf(partitionname, "%s%i", filename, i);
+                       make_node(partitionname, dev->major, dev->minor + i,
+                                   dev->mode, uid, gid);
+               }
        }
 
        /* create symlink if requested */
@@ -222,8 +244,7 @@ static int create_node(struct udevice *dev, int fake)
                                strcpy(linktarget, "./");
                        strcat(linktarget, &dev->name[tail]);
 
-                       /* unlink existing non-directories to ensure that our symlink
-                        * is created */
+                       /* unlink existing files to ensure that our symlink is created */
                        if (!fake && (lstat(filename, &stats) == 0)) {
                                if ((stats.st_mode & S_IFMT) != S_IFDIR) {
                                        if (unlink(filename))