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authorAl Viro <viro@zeniv.linux.org.uk>2006-12-01 03:24:12 (GMT)
committerDavid S. Miller <davem@sunset.davemloft.net>2006-12-03 05:31:54 (GMT)
commit40642f95f5f818579bc4cc3ee084b033e662d5b3 (patch)
tree6c510017836a0ff75146a9a4e79ca487ed3f62d5 /net
parentbb2ef25c2c62444b8fdb0346a23658a419803df9 (diff)
downloadlinux-40642f95f5f818579bc4cc3ee084b033e662d5b3.tar.xz
[EBTABLES]: Verify that ebt_entries have zero ->distinguisher.
We need that for iterator to work; existing check had been too weak. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/bridge/netfilter/ebtables.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index 0dcebf2..6ab7674 100644
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -417,7 +417,7 @@ ebt_check_entry_size_and_hooks(struct ebt_entry *e,
/* beginning of a new chain
if i == NF_BR_NUMHOOKS it must be a user defined chain */
if (i != NF_BR_NUMHOOKS || !(e->bitmask & EBT_ENTRY_OR_ENTRIES)) {
- if ((e->bitmask & EBT_ENTRY_OR_ENTRIES) != 0) {
+ if (e->bitmask != 0) {
/* we make userspace set this right,
so there is no misunderstanding */
BUGPRINT("EBT_ENTRY_OR_ENTRIES shouldn't be set "
@@ -500,7 +500,7 @@ ebt_get_udc_positions(struct ebt_entry *e, struct ebt_table_info *newinfo,
int i;
/* we're only interested in chain starts */
- if (e->bitmask & EBT_ENTRY_OR_ENTRIES)
+ if (e->bitmask)
return 0;
for (i = 0; i < NF_BR_NUMHOOKS; i++) {
if ((valid_hooks & (1 << i)) == 0)
@@ -550,7 +550,7 @@ ebt_cleanup_entry(struct ebt_entry *e, unsigned int *cnt)
{
struct ebt_entry_target *t;
- if ((e->bitmask & EBT_ENTRY_OR_ENTRIES) == 0)
+ if (e->bitmask == 0)
return 0;
/* we're done */
if (cnt && (*cnt)-- == 0)
@@ -576,7 +576,7 @@ ebt_check_entry(struct ebt_entry *e, struct ebt_table_info *newinfo,
int ret;
/* don't mess with the struct ebt_entries */
- if ((e->bitmask & EBT_ENTRY_OR_ENTRIES) == 0)
+ if (e->bitmask == 0)
return 0;
if (e->bitmask & ~EBT_F_MASK) {
@@ -1309,7 +1309,7 @@ static inline int ebt_make_names(struct ebt_entry *e, char *base, char *ubase)
char *hlp;
struct ebt_entry_target *t;
- if ((e->bitmask & EBT_ENTRY_OR_ENTRIES) == 0)
+ if (e->bitmask == 0)
return 0;
hlp = ubase - base + (char *)e + e->target_offset;