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authorGravatar Denys Vlasenko <vda.linux@googlemail.com>2015-01-01 19:02:40 +0100
committerGravatar Denys Vlasenko <vda.linux@googlemail.com>2015-01-01 19:02:40 +0100
commit78854520ebecfd24d5c80a266d6779bd1e069016 (patch)
tree43b2a405b44b07348a26312488513ad1aa171361 /modutils
parent6c19d35f689c911b83073ab1faeffb8040c4b3d9 (diff)
downloadbusybox-78854520ebecfd24d5c80a266d6779bd1e069016.tar.gz
busybox-78854520ebecfd24d5c80a266d6779bd1e069016.tar.bz2
modprobe: revert checking for /, stop doing basename() on modprobe args
function old new delta process_module 726 719 -7 filename2modname 81 67 -14 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-21) Total: -21 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'modutils')
-rw-r--r--modutils/modprobe-small.c8
-rw-r--r--modutils/modprobe.c11
-rw-r--r--modutils/modutils.c8
3 files changed, 12 insertions, 15 deletions
diff --git a/modutils/modprobe-small.c b/modutils/modprobe-small.c
index b7990bff1..dafe91ed7 100644
--- a/modutils/modprobe-small.c
+++ b/modutils/modprobe-small.c
@@ -149,9 +149,13 @@ static void replace(char *s, char what, char with)
static char *filename2modname(const char *filename, char *modname)
{
int i;
- char *from;
+ const char *from;
- from = bb_get_last_path_component_nostrip(filename);
+ // Disabled since otherwise "modprobe dir/name" would work
+ // as if it is "modprobe name". It is unclear why
+ // 'basenamization' was here in the first place.
+ //from = bb_get_last_path_component_nostrip(filename);
+ from = filename;
for (i = 0; i < (MODULE_NAME_LEN-1) && from[i] != '\0' && from[i] != '.'; i++)
modname[i] = (from[i] == '-') ? '_' : from[i];
modname[i] = '\0';
diff --git a/modutils/modprobe.c b/modutils/modprobe.c
index f0904285b..f08f0850d 100644
--- a/modutils/modprobe.c
+++ b/modutils/modprobe.c
@@ -238,17 +238,6 @@ static void add_probe(const char *name)
{
struct module_entry *m;
- /*
- * get_or_add_modentry() strips path from name and works
- * on remaining basename.
- * This would make "rmmod dir/name" and "modprobe dir/name"
- * to work like "rmmod name" and "modprobe name",
- * which is wrong, and can be abused via implicit modprobing:
- * "ifconfig /usbserial up" tries to modprobe netdev-/usbserial.
- */
- if (strchr(name, '/'))
- bb_error_msg_and_die("malformed module name '%s'", name);
-
m = get_or_add_modentry(name);
if (!(option_mask32 & (OPT_REMOVE | OPT_SHOW_DEPS))
&& (m->flags & MODULE_FLAG_LOADED)
diff --git a/modutils/modutils.c b/modutils/modutils.c
index 6187ca72f..ff79d3fac 100644
--- a/modutils/modutils.c
+++ b/modutils/modutils.c
@@ -48,13 +48,17 @@ int FAST_FUNC string_to_llist(char *string, llist_t **llist, const char *delim)
char* FAST_FUNC filename2modname(const char *filename, char *modname)
{
int i;
- char *from;
+ const char *from;
if (filename == NULL)
return NULL;
if (modname == NULL)
modname = xmalloc(MODULE_NAME_LEN);
- from = bb_get_last_path_component_nostrip(filename);
+ // Disabled since otherwise "modprobe dir/name" would work
+ // as if it is "modprobe name". It is unclear why
+ // 'basenamization' was here in the first place.
+ //from = bb_get_last_path_component_nostrip(filename);
+ from = filename;
for (i = 0; i < (MODULE_NAME_LEN-1) && from[i] != '\0' && from[i] != '.'; i++)
modname[i] = (from[i] == '-') ? '_' : from[i];
modname[i] = '\0';