Begin abstracting out the access method for ath(4) ioctls.
Each of the ath* commands do their own direct socket/ioctl calls, which makes it difficult to forklift upgrade things. So, this is the beginning of abstracting out the stats API calls in the hope that I can migrate things to use a /dev/athX file for ioctls and use a more general interface. Tested: * QCA9565 NIC, STA mode
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Adrian Chadd
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218
tools/tools/ath/common/ctrl.c
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218
tools/tools/ath/common/ctrl.c
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/*-
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* Copyright (c) 2016 Adrian Chadd <adrian@FreeBSD.org>.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
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* redistribution must be conditioned upon including a substantially
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* similar Disclaimer requirement for further binary redistribution.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
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* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGES.
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*
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* $FreeBSD$
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*/
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/*
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* This is a simple abstraction of the control channel used to access
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* device specific data.
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*
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* In the past it used a ifnet socket on athX, but since those devices
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* are now gone, they can use wlanX. However, there are debug cases
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* where you'll instead want to talk to the hardware before any VAPs are
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* up, so we should also handle the case of talking to /dev/athX.
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*
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* For now this'll be a drop-in replacement for the existing ioctl()
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* based method until the /dev/athX (and associated new ioctls) land
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* in the tree.
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*/
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#include <sys/param.h>
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#include <sys/file.h>
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#include <sys/sockio.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#include <net/if_media.h>
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#include <net/if_var.h>
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#include <err.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "ah.h"
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#include "ah_desc.h"
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#include "net80211/ieee80211_ioctl.h"
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#include "net80211/ieee80211_radiotap.h"
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#include "if_athioctl.h"
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#include "if_athrate.h"
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#include "ctrl.h"
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int
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ath_driver_req_init(struct ath_driver_req *req)
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{
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bzero(req, sizeof(*req));
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req->s = -1;
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return (0);
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}
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/*
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* Open a suitable file descriptor and populate the relevant interface
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* information for ioctls.
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*
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* For file path based access the ifreq isn't required; it'll just be
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* a direct ioctl on the file descriptor.
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*/
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int
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ath_driver_req_open(struct ath_driver_req *req, const char *ifname)
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{
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int s;
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if (s != -1)
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ath_driver_req_close(req);
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/* For now, netif socket, not /dev/ filedescriptor */
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s = socket(AF_INET, SOCK_DGRAM, 0);
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if (s < 0) {
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warn("%s: socket", __func__);
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return (-1);
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}
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req->ifname = strdup(ifname);
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req->s = s;
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return (0);
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}
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/*
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* Close an open descriptor.
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*/
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int
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ath_driver_req_close(struct ath_driver_req *req)
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{
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if (req->s == -1)
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return (0);
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close(req->s);
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free(req->ifname);
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req->s = -1;
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req->ifname = NULL;
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return (0);
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}
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/*
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* Issue a diagnostic API request.
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*/
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int
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ath_driver_req_fetch_diag(struct ath_driver_req *req, unsigned long cmd,
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struct ath_diag *ad)
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{
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int ret;
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ret = ioctl(req->s, cmd, ad);
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if (ret < 0)
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warn("%s: ioctl", __func__);
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return (ret);
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}
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/*
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* Issue a zero statistics API request.
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*/
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int
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ath_driver_req_zero_stats(struct ath_driver_req *req)
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{
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struct ifreq ifr;
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int ret;
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/* Setup ifreq */
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bzero(&ifr, sizeof(ifr));
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strncpy(ifr.ifr_name, req->ifname, sizeof (ifr.ifr_name));
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ifr.ifr_data = NULL;
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/* ioctl */
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ret = ioctl(req->s, SIOCZATHSTATS, &ifr);
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if (ret < 0)
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warn("%s: ioctl", __func__);
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return (ret);
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}
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/*
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* Fetch general statistics.
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*/
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int
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ath_driver_req_fetch_stats(struct ath_driver_req *req, struct ath_stats *st)
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{
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struct ifreq ifr;
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int ret;
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/* Setup ifreq */
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bzero(&ifr, sizeof(ifr));
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strncpy(ifr.ifr_name, req->ifname, sizeof (ifr.ifr_name));
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ifr.ifr_data = (caddr_t) st;
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/* ioctl */
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ret = ioctl(req->s, SIOCGATHSTATS, &ifr);
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if (ret < 0)
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warn("%s: ioctl", __func__);
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return (ret);
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}
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/*
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* Fetch aggregate statistics.
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*/
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int
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ath_drive_req_fetch_aggr_stats(struct ath_driver_req *req,
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struct ath_tx_aggr_stats *tx)
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{
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struct ifreq ifr;
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int ret;
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/* Setup ifreq */
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bzero(&ifr, sizeof(ifr));
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strncpy(ifr.ifr_name, req->ifname, sizeof (ifr.ifr_name));
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ifr.ifr_data = (caddr_t) tx;
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/* ioctl */
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ret = ioctl(req->s, SIOCGATHAGSTATS, &ifr);
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if (ret < 0)
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warn("%s: ioctl", __func__);
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return (ret);
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}
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/*
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* Fetch rate control statistics.
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*
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* Caller has to populate the interface name and MAC address.
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*/
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int
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ath_drive_req_fetch_ratectrl_stats(struct ath_driver_req *req,
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struct ath_rateioctl *r)
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{
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int ret;
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/* ioctl */
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ret = ioctl(req->s, SIOCGATHNODERATESTATS, r);
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if (ret < 0)
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warn("%s: ioctl", __func__);
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return (ret);
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}
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59
tools/tools/ath/common/ctrl.h
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59
tools/tools/ath/common/ctrl.h
Normal file
@ -0,0 +1,59 @@
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/*-
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* Copyright (c) 2016 Adrian Chadd <adrian@FreeBSD.org>.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
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* redistribution must be conditioned upon including a substantially
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* similar Disclaimer requirement for further binary redistribution.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
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* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGES.
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*
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* $FreeBSD$
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*/
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#ifndef __ATH_CTRL_H__
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#define __ATH_CTRL_H__
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struct ath_stats;
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struct ath_diag;
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struct ath_tx_aggr_stats;
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struct ath_rateioctl;
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struct ath_driver_req {
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/* Open socket, or -1 */
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int s;
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/* The interface name in question */
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char *ifname;
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};
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extern int ath_driver_req_init(struct ath_driver_req *req);
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extern int ath_driver_req_open(struct ath_driver_req *req, const char *ifname);
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extern int ath_driver_req_close(struct ath_driver_req *req);
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extern int ath_driver_req_fetch_diag(struct ath_driver_req *req,
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unsigned long cmd, struct ath_diag *ad);
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extern int ath_driver_req_zero_stats(struct ath_driver_req *req);
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extern int ath_driver_req_fetch_stats(struct ath_driver_req *req,
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struct ath_stats *st);
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extern int ath_drive_req_fetch_aggr_stats(struct ath_driver_req *req,
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struct ath_tx_aggr_stats *tx);
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extern int ath_drive_req_fetch_ratectrl_stats(struct ath_driver_req *req,
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struct ath_rateioctl *r);
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#endif
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