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Re: [RFC] make wext wireless bits optional and deprecate them

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On Mon, May 19, 2008 at 8:22 AM, Johannes Berg
<johannes@xxxxxxxxxxxxxxxx> wrote:
> [removing linux-kernel and netdev from CC, I suppose they won't care too
> much about these details]
>
> On Mon, 2008-05-19 at 14:18 +0200, Johannes Berg wrote:
>> > Instead of testing for wireless/, best thing would probably be to call
>> > SIOCGIWRANGE on the device and if it returns EOPNOTSUP then it's not
>> > wireless.  Some drivers may have to load firmware to figure out
>> > supported rates and encryption capabilities, but to be honest, NM does
>> > this to detect wireless devices and I haven't run into any issues in 4
>> > years using it.  If there are issues with drivers, then we need to fix
>> > the driver too.
>>
>> I was about to propose calling SIOCGIWNAME since that is what
>> wireless-tools do and that linux/wireless.h indicates.
>
> Here's a patch, comments?
>
> johannes
>
> ---
>  hald/linux/device.c |   16 ++++++++++++----
>  1 file changed, 12 insertions(+), 4 deletions(-)
>
> --- hal.orig/hald/linux/device.c        2008-05-19 06:46:23.000000000 +0200
> +++ hal/hald/linux/device.c     2008-05-19 06:55:25.000000000 +0200
> @@ -45,6 +45,10 @@
>   #include <linux/input.h>
>  #endif
>
> +/* for wireless extensions */
> +#include <linux/if.h>
> +#include <linux/wireless.h>
> +
>  #include <dbus/dbus.h>
>  #include <dbus/dbus-glib.h>
>
> @@ -532,10 +536,14 @@ net_add (const gchar *sysfs_path, const
>                const char *addr;
>                const char *parent_subsys;
>                char bridge_path[HAL_PATH_MAX];
> -               char wireless_path[HAL_PATH_MAX];
>                char phy80211_path[HAL_PATH_MAX];
>                struct stat s;
>                dbus_uint64_t mac_address = 0;
> +               int ioctl_fd;
> +               struct iwreq iwr;
> +
> +               ioctl_fd = socket (PF_INET, SOCK_DGRAM, 0);
> +               strncpy (iwr.ifr_ifrn.ifrn_name, IFNAMSIZ, ifname);

IFNAMSIZ should be the last argument.

  Luis
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