src: replace size_t by uint32_t in set/get interfaces

This patch breaks the ABI to shrink the size parameter from 8
to 4 bytes in x86_64. The maximum length of netlink attributes
is 2 bytes, so 4 bytes as attribute payload length should be
enough.

After this patch, size_t is only used in the nft_*_snprintf
interfaces.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/expr/data_reg.h b/src/expr/data_reg.h
index 98c3a4c..8a6a235 100644
--- a/src/expr/data_reg.h
+++ b/src/expr/data_reg.h
@@ -11,7 +11,7 @@ enum {
 union nft_data_reg {
 	struct {
 		uint32_t	val[4];
-		size_t		len;
+		uint32_t	len;
 	};
 	struct {
 		int		verdict;