@@ -187,4 +187,17 @@ struct nft_set_elem {
#define __init __attribute__((constructor))
+void __nft_assert_fail(uint16_t attr, const char *filename, int line);
+
+#define nft_assert(attr, expr) \
+ ((expr) \
+ ? (void)0 \
+ : __nft_assert_fail(attr, __FILE__, __LINE__))
+
+#define nft_assert_validate(_validate_array, _attr, _data_len) \
+({ \
+ if (_validate_array[_attr]) \
+ nft_assert(attr, _validate_array[_attr] == _data_len); \
+})
+
#endif
@@ -211,3 +211,10 @@ int nft_fprintf(FILE *fp, void *obj, uint32_t type, uint32_t flags,
return ret;
}
+
+void __nft_assert_fail(uint16_t attr, const char *filename, int line)
+{
+ fprintf(stderr, "libnftnl: attribute %d assertion failed in %s:%d\n",
+ attr, filename, line);
+ exit(EXIT_FAILURE);
+}
This will be used to validate that the size is correct according to the expected attribute size. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> --- src/internal.h | 13 +++++++++++++ src/utils.c | 7 +++++++ 2 files changed, 20 insertions(+)