summaryrefslogtreecommitdiffstats
path: root/include/datatype.h
diff options
context:
space:
mode:
authorPablo Neira Ayuso <pablo@netfilter.org>2017-02-25 13:15:14 +0100
committerPablo Neira Ayuso <pablo@netfilter.org>2017-02-25 13:40:34 +0100
commit1db6c61f233a0488bc4c9b8fc47d205d4885ef50 (patch)
tree5f200eb44710d1a4d0b7ff789a9e15e1bc3717a1 /include/datatype.h
parent51a09ac313cccff1dd65f546d218e9a6fa2a668f (diff)
datatype: add DTYPE_F_CLONE flag
This flag allows us to identify datatypes that are instances from original datatypes. This fixes a possible double free when attaching a concatenation datatype to set->keytype while being also referenced from concatenation expressions. ip6/flowtable.t: ERROR: line 5: src/nft add rule --debug=netlink ip6 test-ip6 input flow table acct_out { meta iif . ip6 saddr timeout 600s counter }: This rule should not have failed. *** Error in `src/nft': double free or corruption (fasttop): 0x000000000117ce70 *** Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include/datatype.h')
-rw-r--r--include/datatype.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/datatype.h b/include/datatype.h
index 68fb2a6c..3ce3a888 100644
--- a/include/datatype.h
+++ b/include/datatype.h
@@ -109,10 +109,12 @@ struct expr;
*
* @DTYPE_F_ALLOC: datatype is dynamically allocated
* @DTYPE_F_PREFIX: preferred representation for ranges is a prefix
+ * @DTYPE_F_CLONE: this is an instance from original datatype
*/
enum datatype_flags {
DTYPE_F_ALLOC = (1 << 0),
DTYPE_F_PREFIX = (1 << 1),
+ DTYPE_F_CLONE = (1 << 2),
};
/**