On Fri, 2010-03-26 at 07:46 +0200, Juuso Oikarinen wrote:
> This patch adds the cqm option to iw allowing enabling/disabling the
> rssi connection quality monitoring mode, and configuring rssi threshold and
> hysteresis.
>
> Signed-off-by: Juuso Oikarinen <juuso.oikarinen@xxxxxxxxx>
> ---
> Makefile | 2 +-
> cqm.c | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
> event.c | 33 +++++++++++++++++++++++++++++++++
> nl80211.h | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
> 4 files changed, 138 insertions(+), 1 deletions(-)
> create mode 100644 cqm.c
>
> diff --git a/Makefile b/Makefile
> index c51706b..e21900a 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -17,7 +17,7 @@ CFLAGS += -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing
> OBJS = iw.o genl.o event.o info.o phy.o \
> interface.o ibss.o station.o survey.o util.o \
> mesh.o mpath.o scan.o reg.o version.o \
> - reason.o status.o connect.o link.o offch.o ps.o
> + reason.o status.o connect.o link.o offch.o ps.o cqm.c
> OBJS += sections.o
> ALL = iw
>
> diff --git a/cqm.c b/cqm.c
> new file mode 100644
> index 0000000..3da2b54
> --- /dev/null
> +++ b/cqm.c
> @@ -0,0 +1,54 @@
> +#include <errno.h>
> +
> +#include <netlink/genl/genl.h>
> +#include <netlink/genl/family.h>
> +#include <netlink/genl/ctrl.h>
> +#include <netlink/msg.h>
> +#include <netlink/attr.h>
> +
> +#include "nl80211.h"
> +#include "iw.h"
> +
> +static int iw_cqm_rssi(struct nl80211_state *state, struct nl_cb *cb,
> + struct nl_msg *msg, int argc, char **argv)
> +{
> + struct nl_msg *cqm = NULL;
> + int thold = 0;
> + int hyst = 0;
> + int ret = -ENOSPC;
> +
> + /* get the required args */
> + if (argc < 1 || argc > 2)
> + return 1;
> +
> + if (strcmp(argv[0], "off")) {
> + thold = atoi(argv[0]);
> +
> + if (thold == 0)
> + return -EINVAL;
> +
> + if (argc == 2)
> + hyst = atoi(argv[1]);
> + }
> +
> + /* connection quality monitor attributes */
> + cqm = nlmsg_alloc();
> +
> + NLA_PUT_U32(cqm, NL80211_ATTR_CQM_RSSI_THOLD, thold);
> + NLA_PUT_U32(cqm, NL80211_ATTR_CQM_RSSI_HYST, hyst);
Hmm. guess I missed that in the kernel side review, but should we change
the API so that leaving them out means disabling?
johannes
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