[conntrack-tools PATCH] nfct: helper: Fix NFCTH_ATTR_PROTO_L4NUM size

[Phil Sutter]

Kernel defines NFCTH_TUPLE_L4PROTONUM as of type NLA_U8. When adding a
helper, NFCTH_ATTR_PROTO_L4NUM attribute is correctly set using
nfct_helper_attr_set_u8(), though when deleting
nfct_helper_attr_set_u32() was incorrectly used. Due to alignment, this
causes trouble only on Big Endian.

Fixes: 5e8f64f46cb1d ("conntrackd: add cthelper infrastructure (+ example FTP 
helper)")
Signed-off-by: Phil Sutter <p...@nwl.cc>
---
 src/nfct-extensions/helper.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/nfct-extensions/helper.c b/src/nfct-extensions/helper.c
index 0569827612f06..e5d8d0a905df0 100644
--- a/src/nfct-extensions/helper.c
+++ b/src/nfct-extensions/helper.c
@@ -284,7 +284,7 @@ nfct_cmd_helper_delete(struct mnl_socket *nl, int argc, 
char *argv[])
                        nfct_perror("unsupported layer 4 protocol");
                        return -1;
                }
-               nfct_helper_attr_set_u32(t, NFCTH_ATTR_PROTO_L4NUM, l4proto);
+               nfct_helper_attr_set_u8(t, NFCTH_ATTR_PROTO_L4NUM, l4proto);
        }
 
        seq = time(NULL);
-- 
2.22.0