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authorFlorian Westphal <fw@strlen.de>2016-04-01 14:17:26 +0200
committerPablo Neira Ayuso <pablo@netfilter.org>2016-04-14 00:30:36 +0200
commitfc1221b3a163d1386d1052184202d5dc50d302d1 (patch)
treef19b11e231938bc79c3f3596765703ef7de00082 /include/linux/netfilter
parenta08e4e190b866579896c09af59b3bdca821da2cd (diff)
netfilter: x_tables: add compat version of xt_check_entry_offsets
32bit rulesets have different layout and alignment requirements, so once more integrity checks get added to xt_check_entry_offsets it will reject well-formed 32bit rulesets. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include/linux/netfilter')
-rw-r--r--include/linux/netfilter/x_tables.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/netfilter/x_tables.h b/include/linux/netfilter/x_tables.h
index 0de0862897a4..08de48bbe92e 100644
--- a/include/linux/netfilter/x_tables.h
+++ b/include/linux/netfilter/x_tables.h
@@ -494,6 +494,9 @@ void xt_compat_target_from_user(struct xt_entry_target *t, void **dstptr,
unsigned int *size);
int xt_compat_target_to_user(const struct xt_entry_target *t,
void __user **dstptr, unsigned int *size);
+int xt_compat_check_entry_offsets(const void *base,
+ unsigned int target_offset,
+ unsigned int next_offset);
#endif /* CONFIG_COMPAT */
#endif /* _X_TABLES_H */