diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2006-12-01 04:24:12 +0100 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-12-03 06:31:54 +0100 |
| commit | 40642f95f5f818579bc4cc3ee084b033e662d5b3 (patch) | |
| tree | 6c510017836a0ff75146a9a4e79ca487ed3f62d5 /net/bridge | |
| parent | [EBTABLES]: Fix wraparounds in ebt_entries verification. (diff) | |
| download | linux-40642f95f5f818579bc4cc3ee084b033e662d5b3.tar.xz linux-40642f95f5f818579bc4cc3ee084b033e662d5b3.zip | |
[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/bridge')
| -rw-r--r-- | net/bridge/netfilter/ebtables.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c index 0dcebf20d6ce..6ab7674ea454 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; |