On 09/04/2014 11:33 PM, Johannes Berg wrote:
> On Thu, 2014-09-04 at 10:51 -0700, Ben Greear wrote:
>> I'm having issues with udev renaming newly created stations when I have
>> udev rules for wlanX, when wlanX is not already existing.
>>
>> I think specifying MAC on station creation time would solve my problems,
>> but haven't looked closely yet.
>>
>> My version of 'iw' doesn't support setting the MAC on creation, from
>> what I can tel.
>>
>> Curious if anyone else is working on this?
>
> I think Marcel mentioned wanting this before. There's even an attribute
> in nl80211 already, but it can only be used for P2P_DEVICE I believe, so
> a feature flag or so would be needed to be able to know whether or not
> this would be expected to take any effect (kernels before those future
> changes would ignore the attribute for non-P2P-DEVICE I believe)
>
> Haven't looked at the code right now, this is all I know.
In the iw code, it seems that the arguments: mesh_id, 4addr, flags
cannot be used at the same time?
I want to add an option pass an optional mac-address as
well. It would be easier if I processed args in a loop
and removed the exclusivity on those 3 above, but if they
do need to remain exclusive, then I can do that too:
static int handle_interface_add(struct nl80211_state *state,
struct nl_cb *cb,
struct nl_msg *msg,
int argc, char **argv,
enum id_input id)
{
char *name;
char *mesh_id = NULL;
enum nl80211_iftype type;
int tpset;
if (argc < 1)
return 1;
name = argv[0];
argc--;
argv++;
tpset = get_if_type(&argc, &argv, &type, true);
if (tpset)
return tpset;
if (argc) {
if (strcmp(argv[0], "mesh_id") == 0) {
argc--;
argv++;
if (!argc)
return 1;
mesh_id = argv[0];
argc--;
argv++;
} else if (strcmp(argv[0], "4addr") == 0) {
argc--;
argv++;
if (parse_4addr_flag(argv[0], msg)) {
fprintf(stderr, "4addr error\n");
return 2;
}
argc--;
argv++;
} else if (strcmp(argv[0], "flags") == 0) {
argc--;
argv++;
if (parse_mntr_flags(&argc, &argv, msg)) {
fprintf(stderr, "flags error\n");
return 2;
}
} else {
return 1;
}
}
if (argc)
return 1;
Thanks,
Ben
--
Ben Greear <[email protected]>
Candela Technologies Inc http://www.candelatech.com
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