Here's a simple iw patch that shows the error message string:
--- a/iw.c
+++ b/iw.c
@@ -62,6 +62,10 @@ static int nl80211_init(struct nl80211_state *state)
nl_socket_set_buffer_size(state->nl_sock, 8192, 8192);
+ /* try to set NETLINK_EXT_ACK to 1 (ignore errors) */
+ err =
I thought a little bit more about the part of reporting the broken and
missing attributes, and I'm not sure I'm entirely happy with that part.
For reporting broken attributes, I think the pointer is really the best
thing we can do - adding the attribute number in addition to that would
seem to be
Changes since v2:
* add NUM_NLMSGERR_ATTRS, NLMSGERR_ATTR_MAX
* fix cookie length to 20 (sha-1 length)
* move struct members for cookie to patch 3 where they should be
* another cleanup suggested by David Ahern
johannes
