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authorkay.sievers@vrfy.org <kay.sievers@vrfy.org>2004-02-16 21:44:28 -0800
committerGreg KH <gregkh@suse.de>2005-04-26 21:32:28 -0700
commit50e5de03d16be3e35e65cdf65f552807ad24e996 (patch)
tree46c83042e99cf64eb308ac6bd47fab4f75525733 /udev-add.c
parentbb7386472466e55f75df024d18e8da37a222bb41 (diff)
[PATCH] udev - create all partitions of blockdevice
Here is the first try to create all partitons of a blockdevice, since removable media devices may need to acces the expected partition to revalidate the media. It uses the attribute syntax introduced with the last %s{file} patch. I'm using this with my multi-slot-flash-card-reader: SYSFS{model}="USB Storage-SMC ", NAME{all_partitions}="smartmedia" SYSFS{model}="USB Storage-CFC ", NAME{all_partitions}="compactflash" SYSFS{model}="USB Storage-MSC ", NAME{all_partitions}="memorystick" SYSFS{model}="USB Storage-MMC ", NAME{all_partitions}="multimedia" and I get: tree /udev/ /udev/ |-- memorystick |-- memorystick1 |-- memorystick10 |-- memorystick11 |-- memorystick12 |-- memorystick13 |-- memorystick14 |-- memorystick15 |-- memorystick2 |-- memorystick3 |-- memorystick4 |-- memorystick5 |-- memorystick6 |-- memorystick7 |-- memorystick8 |-- memorystick9 |-- multimedia |-- multimedia1 |-- multimedia10 |-- multimedia11 |-- multimedia12 |-- multimedia13 |-- multimedia14 |-- multimedia15 |-- multimedia2 |-- multimedia3 |-- multimedia4 |-- multimedia5 |-- multimedia6 |-- multimedia7 |-- multimedia8 |-- multimedia9 ... If needed, we can make the number of partions to create adjustable with the attribute?
Diffstat (limited to 'udev-add.c')
-rw-r--r--udev-add.c71
1 files changed, 46 insertions, 25 deletions
diff --git a/udev-add.c b/udev-add.c
index 8867c8f5af..3b3ebd5bbb 100644
--- 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))