The res_id member of struct nfgenmsg is supposed to be in network byte order (big endian). Call htons() in __nftnl_nlmsg_build_hdr() to ensure that this is true on little endian systems. Signed-off-by: Ian Pilcher <arequipeno@xxxxxxxxx> --- src/common.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/src/common.c b/src/common.c index 2d83c12..08572c3 100644 --- a/src/common.c +++ b/src/common.c @@ -10,6 +10,7 @@ #include <stdlib.h> #include <sys/socket.h> #include <time.h> +#include <arpa/inet.h> #include <linux/netlink.h> #include <linux/netfilter/nfnetlink.h> #include <linux/netfilter/nf_tables.h> @@ -37,7 +38,7 @@ static struct nlmsghdr *__nftnl_nlmsg_build_hdr(char *buf, uint16_t type, nfh = mnl_nlmsg_put_extra_header(nlh, sizeof(struct nfgenmsg)); nfh->nfgen_family = family; nfh->version = NFNETLINK_V0; - nfh->res_id = res_id; + nfh->res_id = htons(res_id); return nlh; } -- 2.37.3
