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busybox 1.21.0: update mdev patch and add ntfs volume patch

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Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
This commit is contained in:
Gustavo Zacarias 2013-05-13 12:20:42 +00:00 committed by Peter Korsgaard
parent f8a6a1b94a
commit 32a2f502c6
2 changed files with 99 additions and 30 deletions
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118
package/busybox/1.21.0/busybox-1.21.0-mdev.patch
View File

@ -68,20 +68,24 @@
} FIX_ALIASING;
#define G (*(struct globals*)&bb_common_bufsiz1)
#define INIT_G() do { \
@@ -270,13 +298,6 @@ struct globals {
/* We use additional 64+ bytes in make_device() */
#define SCRATCH_SIZE 80
@@ -267,15 +295,8 @@ struct globals {
/* Prevent infinite loops in /sys symlinks */
#define MAX_SYSFS_DEPTH 3
-/* We use additional 64+ bytes in make_device() */
-#define SCRATCH_SIZE 80
-
-#if 0
-# define dbg(...) bb_error_msg(__VA_ARGS__)
-#else
-# define dbg(...) ((void)0)
-#endif
-
-
+/* We use additional bytes in make_device() */
+#define SCRATCH_SIZE 128
#if ENABLE_FEATURE_MDEV_CONF
static void make_default_cur_rule(void)
@@ -288,14 +309,65 @@ static void make_default_cur_rule(void)
static void clean_up_cur_rule(void)
@ -233,37 +237,91 @@
#else
# define next_rule() (&G.cur_rule)
@@ -479,9 +569,6 @@ static void make_device(char *device_nam
@@ -468,7 +558,7 @@ static char *build_alias(char *alias, co
/* mknod in /dev based on a path like "/sys/block/hda/hda1"
* NB1: path parameter needs to have SCRATCH_SIZE scratch bytes
- * after NUL, but we promise to not mangle (IOW: to restore if needed)
+ * after NUL, but we promise to not mangle (IOW: to restore NUL if needed)
* path string.
* NB2: "mdev -s" may call us many times, do not leak memory/fds!
*
@@ -478,9 +568,7 @@ static char *build_alias(char *alias, co
static void make_device(char *device_name, char *path, int operation)
{
int major, minor, type, len;
-
- if (G.verbose)
- bb_error_msg("device: %s, %s", device_name, path);
-
+ char *path_end = path + strlen(path);
/* Try to read major/minor string. Note that the kernel puts \n after
* the data, so we don't need to worry about null terminating the string
* because sscanf() will stop at the first nondigit, which \n is.
@@ -500,8 +587,7 @@ static void make_device(char *device_nam
@@ -489,29 +577,51 @@ static void make_device(char *device_nam
*/
major = -1;
if (operation == OP_add) {
- char *dev_maj_min = path + strlen(path);
-
- strcpy(dev_maj_min, "/dev");
- len = open_read_close(path, dev_maj_min + 1, 64);
- *dev_maj_min = '\0';
+ strcpy(path_end, "/dev");
+ len = open_read_close(path, path_end + 1, SCRATCH_SIZE - 1);
+ *path_end = '\0';
if (len < 1) {
if (!ENABLE_FEATURE_MDEV_EXEC)
return;
/* no "dev" file, but we can still run scripts
* based on device name */
} else if (sscanf(++dev_maj_min, "%u:%u", &major, &minor) == 2) {
- } else if (sscanf(++dev_maj_min, "%u:%u", &major, &minor) == 2) {
- if (G.verbose)
- bb_error_msg("maj,min: %u,%u", major, minor);
+ } else if (sscanf(path_end + 1, "%u:%u", &major, &minor) == 2) {
+ dbg1("dev %u,%u", major, minor);
} else {
major = -1;
}
@@ -511,7 +597,8 @@ static void make_device(char *device_nam
/* Determine device name, type, major and minor */
if (!device_name)
device_name = (char*) bb_basename(path);
}
/* else: for delete, -1 still deletes the node, but < -1 suppresses that */
- /* Determine device name, type, major and minor */
- if (!device_name)
- device_name = (char*) bb_basename(path);
- /* http://kernel.org/doc/pending/hotplug.txt says that only
+ /* Determine device name */
+ if (!device_name) {
+ /*
+ * There was no $DEVNAME envvar (for example, mdev -s never has).
+ * But it is very useful: it contains the *path*, not only basename,
+ * Thankfully, uevent file has it.
+ * Example of .../sound/card0/controlC0/uevent file on Linux-3.7.7:
+ * MAJOR=116
+ * MINOR=7
+ * DEVNAME=snd/controlC0
+ */
+ strcpy(path_end, "/uevent");
+ len = open_read_close(path, path_end + 1, SCRATCH_SIZE - 1);
+ if (len < 0)
+ len = 0;
+ *path_end = '\0';
+ path_end[1 + len] = '\0';
+ device_name = strstr(path_end + 1, "\nDEVNAME=");
+ if (device_name) {
+ device_name += sizeof("\nDEVNAME=")-1;
+ strchrnul(device_name, '\n')[0] = '\0';
+ } else {
+ /* Fall back to just basename */
+ device_name = (char*) bb_basename(path);
+ }
+ }
+ /* Determine device type */
+ /*
+ * http://kernel.org/doc/pending/hotplug.txt says that only
* "/sys/block/..." is for block devices. "/sys/bus" etc is not.
* But since 2.6.25 block devices are also in /sys/class/block.
* We use strstr("/block/") to forestall future surprises.
@@ -537,6 +624,8 @@ static void make_device(char *device_nam
@@ -537,6 +647,8 @@ static void make_device(char *device_nam
rule = next_rule();
#if ENABLE_FEATURE_MDEV_CONF
@ -272,7 +330,7 @@
if (rule->maj >= 0) { /* @maj,min rule */
if (major != rule->maj)
continue;
@@ -547,7 +636,7 @@ static void make_device(char *device_nam
@@ -547,7 +659,7 @@ static void make_device(char *device_nam
}
if (rule->envvar) { /* $envvar=regex rule */
str_to_match = getenv(rule->envvar);
@ -281,7 +339,7 @@
if (!str_to_match)
continue;
}
@@ -555,7 +644,7 @@ static void make_device(char *device_nam
@@ -555,7 +667,7 @@ static void make_device(char *device_nam
if (rule->regex_compiled) {
int regex_match = regexec(&rule->match, str_to_match, ARRAY_SIZE(off), off, 0);
@ -290,7 +348,7 @@
//bb_error_msg("matches:");
//for (int i = 0; i < ARRAY_SIZE(off); i++) {
// if (off[i].rm_so < 0) continue;
@@ -574,9 +663,8 @@ static void make_device(char *device_nam
@@ -574,9 +686,8 @@ static void make_device(char *device_nam
}
/* else: it's final implicit "match-all" rule */
rule_matches:
@ -301,7 +359,7 @@
/* Build alias name */
alias = NULL;
if (ENABLE_FEATURE_MDEV_RENAME && rule->ren_mov) {
@@ -619,34 +707,30 @@ static void make_device(char *device_nam
@@ -619,34 +730,30 @@ static void make_device(char *device_nam
}
}
}
@ -344,7 +402,7 @@
}
if (operation == OP_add && major >= 0) {
@@ -656,8 +740,17 @@ static void make_device(char *device_nam
@@ -656,8 +763,17 @@ static void make_device(char *device_nam
mkdir_recursive(node_name);
*slash = '/';
}
@ -364,7 +422,7 @@
if (mknod(node_name, rule->mode | type, makedev(major, minor)) && errno != EEXIST)
bb_perror_msg("can't create '%s'", node_name);
if (ENABLE_FEATURE_MDEV_CONF) {
@@ -671,8 +764,7 @@ static void make_device(char *device_nam
@@ -671,8 +787,7 @@ static void make_device(char *device_nam
//TODO: on devtmpfs, device_name already exists and symlink() fails.
//End result is that instead of symlink, we have two nodes.
//What should be done?
@ -374,7 +432,7 @@
symlink(node_name, device_name);
}
}
@@ -681,27 +773,21 @@ static void make_device(char *device_nam
@@ -681,27 +796,21 @@ static void make_device(char *device_nam
if (ENABLE_FEATURE_MDEV_EXEC && command) {
/* setenv will leak memory, use putenv/unsetenv/free */
char *s = xasprintf("%s=%s", "MDEV", node_name);
@ -405,7 +463,7 @@
unlink(node_name);
}
@@ -746,9 +832,16 @@ static int FAST_FUNC dirAction(const cha
@@ -746,9 +855,16 @@ static int FAST_FUNC dirAction(const cha
* under /sys/class/ */
if (1 == depth) {
free(G.subsystem);
@ -423,7 +481,7 @@
}
return (depth >= MAX_SYSFS_DEPTH ? SKIP : TRUE);
@@ -813,12 +906,107 @@ static void load_firmware(const char *fi
@@ -813,12 +929,107 @@ static void load_firmware(const char *fi
full_write(loading_fd, "-1", 2);
out:
@ -531,7 +589,7 @@
int mdev_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int mdev_main(int argc UNUSED_PARAM, char **argv)
{
@@ -840,8 +1028,8 @@ int mdev_main(int argc UNUSED_PARAM, cha
@@ -840,8 +1051,8 @@ int mdev_main(int argc UNUSED_PARAM, cha
xchdir("/dev");
if (argv[1] && strcmp(argv[1], "-s") == 0) {
@ -542,7 +600,7 @@
*/
struct stat st;
@@ -853,6 +1041,8 @@ int mdev_main(int argc UNUSED_PARAM, cha
@@ -853,6 +1064,8 @@ int mdev_main(int argc UNUSED_PARAM, cha
G.root_major = major(st.st_dev);
G.root_minor = minor(st.st_dev);
@ -551,7 +609,7 @@
/* ACTION_FOLLOWLINKS is needed since in newer kernels
* /sys/block/loop* (for example) are symlinks to dirs,
* not real directories.
@@ -878,11 +1068,13 @@ int mdev_main(int argc UNUSED_PARAM, cha
@@ -878,11 +1091,13 @@ int mdev_main(int argc UNUSED_PARAM, cha
char *action;
char *env_devname;
char *env_devpath;
@ -566,7 +624,7 @@
* DEVPATH is like "/block/sda" or "/class/input/mice"
*/
action = getenv("ACTION");
@@ -893,39 +1085,20 @@ int mdev_main(int argc UNUSED_PARAM, cha
@@ -893,39 +1108,20 @@ int mdev_main(int argc UNUSED_PARAM, cha
if (!action || !env_devpath /*|| !G.subsystem*/)
bb_show_usage();
fw = getenv("FIRMWARE");
@ -618,7 +676,7 @@
snprintf(temp, PATH_MAX, "/sys%s", env_devpath);
if (op == OP_remove) {
@@ -935,16 +1108,18 @@ int mdev_main(int argc UNUSED_PARAM, cha
@@ -935,16 +1131,18 @@ int mdev_main(int argc UNUSED_PARAM, cha
if (!fw)
make_device(env_devname, temp, op);
}

11
package/busybox/1.21.0/busybox-1.21.0-ntfs.patch Normal file
View File

@ -0,0 +1,11 @@
--- busybox-1.21.0/util-linux/volume_id/ntfs.c
+++ busybox-1.21.0-ntfs/util-linux/volume_id/ntfs.c
@@ -150,7 +150,7 @@ int FAST_FUNC volume_id_probe_ntfs(struc
attr = (struct file_attribute*) &buf[attr_off];
attr_type = le32_to_cpu(attr->type);
- attr_len = le16_to_cpu(attr->len);
+ attr_len = le32_to_cpu(attr->len);
val_off = le16_to_cpu(attr->value_offset);
val_len = le32_to_cpu(attr->value_len);
attr_off += attr_len;