e21a34c25e
passed to sysctl_createv() actually matches the declared type for the item itself. In the places where the caller specifies a function and a structure address (typically the 'softc') an explicit (void *) cast is now needed. Fixes bugs in sys/dev/acpi/asus_acpi.c sys/dev/bluetooth/bcsp.c sys/kern/vfs_bio.c sys/miscfs/syncfs/sync_subr.c and setting AcpiGbl_EnableAmlDebugObject. (mostly passing the address of a uint64_t when typed as CTLTYPE_INT). I've test built quite a few kernels, but there may be some unfixed MD fallout. Most likely passing &char[] to char *. Also add CTLFLAG_UNSIGNED for unsiged decimals - not set yet.
772 lines
21 KiB
C
772 lines
21 KiB
C
/* $NetBSD: ieee80211_netbsd.c,v 1.21 2012/06/02 21:36:47 dsl Exp $ */
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/*-
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* Copyright (c) 2003-2005 Sam Leffler, Errno Consulting
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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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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifdef __FreeBSD__
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__FBSDID("$FreeBSD: src/sys/net80211/ieee80211_freebsd.c,v 1.8 2005/08/08 18:46:35 sam Exp $");
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#else
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__KERNEL_RCSID(0, "$NetBSD: ieee80211_netbsd.c,v 1.21 2012/06/02 21:36:47 dsl Exp $");
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#endif
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/*
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* IEEE 802.11 support (NetBSD-specific code)
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*/
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/systm.h>
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#include <sys/mbuf.h>
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#include <sys/proc.h>
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#include <sys/sysctl.h>
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#include <sys/once.h>
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#include <sys/socket.h>
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#include <sys/cprng.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_ether.h>
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#include <net/route.h>
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#include <net80211/ieee80211_netbsd.h>
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#include <net80211/ieee80211_var.h>
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#include <net80211/ieee80211_sysctl.h>
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#define LOGICALLY_EQUAL(x, y) (!(x) == !(y))
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static void ieee80211_sysctl_fill_node(struct ieee80211_node *,
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struct ieee80211_node_sysctl *, int, const struct ieee80211_channel *,
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uint32_t);
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static struct ieee80211_node *ieee80211_node_walknext(
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struct ieee80211_node_walk *);
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static struct ieee80211_node *ieee80211_node_walkfirst(
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struct ieee80211_node_walk *, u_short);
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static int ieee80211_sysctl_node(SYSCTLFN_ARGS);
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#ifdef IEEE80211_DEBUG
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int ieee80211_debug = 0;
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#endif
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typedef void (*ieee80211_setup_func)(void);
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__link_set_decl(ieee80211_funcs, ieee80211_setup_func);
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static int
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ieee80211_init0(void)
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{
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ieee80211_setup_func * const *ieee80211_setup, f;
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__link_set_foreach(ieee80211_setup, ieee80211_funcs) {
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f = (void*)*ieee80211_setup;
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(*f)();
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}
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return 0;
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}
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void
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ieee80211_init(void)
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{
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static ONCE_DECL(ieee80211_init_once);
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RUN_ONCE(&ieee80211_init_once, ieee80211_init0);
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}
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static int
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ieee80211_sysctl_inact(SYSCTLFN_ARGS)
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{
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int error, t;
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struct sysctlnode node;
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node = *rnode;
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/* sysctl_lookup copies the product from t. Then, it
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* copies the new value onto t.
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*/
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t = *(int*)rnode->sysctl_data * IEEE80211_INACT_WAIT;
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node.sysctl_data = &t;
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error = sysctl_lookup(SYSCTLFN_CALL(&node));
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if (error || newp == NULL)
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return (error);
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/* The new value was in seconds. Convert to inactivity-wait
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* intervals. There are IEEE80211_INACT_WAIT seconds per
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* interval.
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*/
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*(int*)rnode->sysctl_data = t / IEEE80211_INACT_WAIT;
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return (0);
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}
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static int
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ieee80211_sysctl_parent(SYSCTLFN_ARGS)
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{
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struct ieee80211com *ic;
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char pname[IFNAMSIZ];
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struct sysctlnode node;
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node = *rnode;
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ic = node.sysctl_data;
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strncpy(pname, ic->ic_ifp->if_xname, IFNAMSIZ);
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node.sysctl_data = pname;
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return sysctl_lookup(SYSCTLFN_CALL(&node));
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}
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/*
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* Create or get top of sysctl tree net.link.ieee80211.
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*/
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static const struct sysctlnode *
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ieee80211_sysctl_treetop(struct sysctllog **log)
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{
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int rc;
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const struct sysctlnode *rnode;
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if ((rc = sysctl_createv(log, 0, NULL, &rnode,
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CTLFLAG_PERMANENT, CTLTYPE_NODE, "net", NULL,
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NULL, 0, NULL, 0, CTL_NET, CTL_EOL)) != 0)
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goto err;
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if ((rc = sysctl_createv(log, 0, &rnode, &rnode,
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CTLFLAG_PERMANENT, CTLTYPE_NODE, "link",
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"link-layer statistics and controls",
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NULL, 0, NULL, 0, PF_LINK, CTL_EOL)) != 0)
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goto err;
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if ((rc = sysctl_createv(log, 0, &rnode, &rnode,
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CTLFLAG_PERMANENT, CTLTYPE_NODE, "ieee80211",
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"IEEE 802.11 WLAN statistics and controls",
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NULL, 0, NULL, 0, CTL_CREATE, CTL_EOL)) != 0)
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goto err;
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return rnode;
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err:
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printf("%s: sysctl_createv failed, rc = %d\n", __func__, rc);
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return NULL;
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}
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void
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ieee80211_sysctl_attach(struct ieee80211com *ic)
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{
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int rc;
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const struct sysctlnode *cnode, *rnode;
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char num[sizeof("vap") + 14]; /* sufficient for 32 bits */
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if ((rnode = ieee80211_sysctl_treetop(NULL)) == NULL)
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return;
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snprintf(num, sizeof(num), "vap%u", ic->ic_vap);
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if ((rc = sysctl_createv(&ic->ic_sysctllog, 0, &rnode, &rnode,
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CTLFLAG_PERMANENT, CTLTYPE_NODE, num, SYSCTL_DESCR("virtual AP"),
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NULL, 0, NULL, 0, CTL_CREATE, CTL_EOL)) != 0)
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goto err;
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/* control debugging printfs */
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if ((rc = sysctl_createv(&ic->ic_sysctllog, 0, &rnode, &cnode,
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CTLFLAG_PERMANENT|CTLFLAG_READONLY, CTLTYPE_STRING,
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"parent", SYSCTL_DESCR("parent device"),
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ieee80211_sysctl_parent, 0, (void *)ic, IFNAMSIZ, CTL_CREATE,
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CTL_EOL)) != 0)
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goto err;
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#ifdef IEEE80211_DEBUG
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/* control debugging printfs */
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if ((rc = sysctl_createv(&ic->ic_sysctllog, 0, &rnode, &cnode,
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CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT,
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"debug", SYSCTL_DESCR("control debugging printfs"),
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NULL, ieee80211_debug, &ic->ic_debug, 0,
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CTL_CREATE, CTL_EOL)) != 0)
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goto err;
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#endif
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/* XXX inherit from tunables */
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if ((rc = sysctl_createv(&ic->ic_sysctllog, 0, &rnode, &cnode,
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CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT,
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"inact_run", SYSCTL_DESCR("station inactivity timeout (sec)"),
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ieee80211_sysctl_inact, 0, &ic->ic_inact_run, 0,
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CTL_CREATE, CTL_EOL)) != 0)
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goto err;
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if ((rc = sysctl_createv(&ic->ic_sysctllog, 0, &rnode, &cnode,
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CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT,
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"inact_probe",
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SYSCTL_DESCR("station inactivity probe timeout (sec)"),
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ieee80211_sysctl_inact, 0, &ic->ic_inact_probe, 0,
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CTL_CREATE, CTL_EOL)) != 0)
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goto err;
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if ((rc = sysctl_createv(&ic->ic_sysctllog, 0, &rnode, &cnode,
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CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT,
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"inact_auth",
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SYSCTL_DESCR("station authentication timeout (sec)"),
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ieee80211_sysctl_inact, 0, &ic->ic_inact_auth, 0,
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CTL_CREATE, CTL_EOL)) != 0)
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goto err;
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if ((rc = sysctl_createv(&ic->ic_sysctllog, 0, &rnode, &cnode,
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CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT,
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"inact_init",
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SYSCTL_DESCR("station initial state timeout (sec)"),
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ieee80211_sysctl_inact, 0, &ic->ic_inact_init, 0,
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CTL_CREATE, CTL_EOL)) != 0)
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goto err;
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if ((rc = sysctl_createv(&ic->ic_sysctllog, 0, &rnode, &cnode,
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CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT,
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"driver_caps", SYSCTL_DESCR("driver capabilities"),
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NULL, 0, &ic->ic_caps, 0, CTL_CREATE, CTL_EOL)) != 0)
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goto err;
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if ((rc = sysctl_createv(&ic->ic_sysctllog, 0, &rnode, &cnode,
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CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT,
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"bmiss_max", SYSCTL_DESCR("consecutive beacon misses before scanning"),
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NULL, 0, &ic->ic_bmiss_max, 0, CTL_CREATE, CTL_EOL)) != 0)
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goto err;
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return;
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err:
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printf("%s: sysctl_createv failed, rc = %d\n", __func__, rc);
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}
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void
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ieee80211_sysctl_detach(struct ieee80211com *ic)
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{
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sysctl_teardown(&ic->ic_sysctllog);
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}
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/*
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* Pointers for testing:
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*
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* If there are no interfaces, or else no 802.11 interfaces,
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* ieee80211_node_walkfirst must return NULL.
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*
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* If there is any single 802.11 interface, ieee80211_node_walkfirst
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* must not return NULL.
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*/
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static struct ieee80211_node *
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ieee80211_node_walkfirst(struct ieee80211_node_walk *nw, u_short if_index)
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{
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(void)memset(nw, 0, sizeof(*nw));
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nw->nw_ifindex = if_index;
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LIST_FOREACH(nw->nw_ic, &ieee80211com_head, ic_list) {
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if (if_index != 0 && nw->nw_ic->ic_ifp->if_index != if_index)
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continue;
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if (!TAILQ_EMPTY(&nw->nw_ic->ic_sta.nt_node))
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nw->nw_nt = &nw->nw_ic->ic_sta;
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else if (!TAILQ_EMPTY(&nw->nw_ic->ic_scan.nt_node))
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nw->nw_nt = &nw->nw_ic->ic_scan;
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else if (nw->nw_ic->ic_bss == NULL)
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continue;
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break;
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}
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if (nw->nw_ic == NULL)
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return NULL;
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if (nw->nw_nt == NULL)
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nw->nw_ni = nw->nw_ic->ic_bss;
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else
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nw->nw_ni = TAILQ_FIRST(&nw->nw_nt->nt_node);
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return nw->nw_ni;
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}
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static struct ieee80211_node *
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ieee80211_node_walknext(struct ieee80211_node_walk *nw)
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{
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if (nw->nw_nt != NULL)
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nw->nw_ni = TAILQ_NEXT(nw->nw_ni, ni_list);
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else
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nw->nw_ni = NULL;
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while (nw->nw_ni == NULL) {
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if (nw->nw_nt == &nw->nw_ic->ic_sta) {
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nw->nw_nt = &nw->nw_ic->ic_scan;
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nw->nw_ni = TAILQ_FIRST(&nw->nw_nt->nt_node);
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continue;
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} else if (nw->nw_nt == &nw->nw_ic->ic_scan) {
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nw->nw_nt = NULL;
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nw->nw_ni = nw->nw_ic->ic_bss;
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continue;
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}
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KASSERT(nw->nw_nt == NULL);
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if (nw->nw_ifindex != 0)
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return NULL;
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nw->nw_ic = LIST_NEXT(nw->nw_ic, ic_list);
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if (nw->nw_ic == NULL)
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return NULL;
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nw->nw_nt = &nw->nw_ic->ic_sta;
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nw->nw_ni = TAILQ_FIRST(&nw->nw_nt->nt_node);
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}
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return nw->nw_ni;
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}
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static void
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ieee80211_sysctl_fill_node(struct ieee80211_node *ni,
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struct ieee80211_node_sysctl *ns, int ifindex,
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const struct ieee80211_channel *chan0, uint32_t flags)
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{
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ns->ns_ifindex = ifindex;
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ns->ns_capinfo = ni->ni_capinfo;
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ns->ns_flags = flags;
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(void)memcpy(ns->ns_macaddr, ni->ni_macaddr, sizeof(ns->ns_macaddr));
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(void)memcpy(ns->ns_bssid, ni->ni_bssid, sizeof(ns->ns_bssid));
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if (ni->ni_chan != IEEE80211_CHAN_ANYC) {
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ns->ns_freq = ni->ni_chan->ic_freq;
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ns->ns_chanflags = ni->ni_chan->ic_flags;
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ns->ns_chanidx = ni->ni_chan - chan0;
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} else {
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ns->ns_freq = ns->ns_chanflags = 0;
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ns->ns_chanidx = 0;
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}
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ns->ns_rssi = ni->ni_rssi;
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ns->ns_esslen = ni->ni_esslen;
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(void)memcpy(ns->ns_essid, ni->ni_essid, sizeof(ns->ns_essid));
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ns->ns_erp = ni->ni_erp;
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ns->ns_associd = ni->ni_associd;
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ns->ns_inact = ni->ni_inact * IEEE80211_INACT_WAIT;
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ns->ns_rstamp = ni->ni_rstamp;
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ns->ns_rates = ni->ni_rates;
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ns->ns_txrate = ni->ni_txrate;
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ns->ns_intval = ni->ni_intval;
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(void)memcpy(ns->ns_tstamp, &ni->ni_tstamp, sizeof(ns->ns_tstamp));
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ns->ns_txseq = ni->ni_txseqs[0];
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ns->ns_rxseq = ni->ni_rxseqs[0];
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ns->ns_fhdwell = ni->ni_fhdwell;
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ns->ns_fhindex = ni->ni_fhindex;
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ns->ns_fails = ni->ni_fails;
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}
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/* Between two examinations of the sysctl tree, I expect each
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* interface to add no more than 5 nodes.
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*/
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#define IEEE80211_SYSCTL_NODE_GROWTH 5
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static int
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ieee80211_sysctl_node(SYSCTLFN_ARGS)
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{
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struct ieee80211_node_walk nw;
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struct ieee80211_node *ni;
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struct ieee80211_node_sysctl ns;
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char *dp;
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u_int cur_ifindex, ifcount, ifindex, last_ifindex, op, arg, hdr_type;
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uint32_t flags;
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size_t len, needed, eltsize, out_size;
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int error, s, saw_bss = 0, nelt;
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if (namelen == 1 && name[0] == CTL_QUERY)
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return (sysctl_query(SYSCTLFN_CALL(rnode)));
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if (namelen != IEEE80211_SYSCTL_NODENAMELEN)
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return (EINVAL);
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/* ifindex.op.arg.header-type.eltsize.nelt */
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dp = oldp;
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len = (oldp != NULL) ? *oldlenp : 0;
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ifindex = name[IEEE80211_SYSCTL_NODENAME_IF];
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op = name[IEEE80211_SYSCTL_NODENAME_OP];
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arg = name[IEEE80211_SYSCTL_NODENAME_ARG];
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hdr_type = name[IEEE80211_SYSCTL_NODENAME_TYPE];
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eltsize = name[IEEE80211_SYSCTL_NODENAME_ELTSIZE];
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nelt = name[IEEE80211_SYSCTL_NODENAME_ELTCOUNT];
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out_size = MIN(sizeof(ns), eltsize);
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if (op != IEEE80211_SYSCTL_OP_ALL || arg != 0 ||
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hdr_type != IEEE80211_SYSCTL_T_NODE || eltsize < 1 || nelt < 0)
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return (EINVAL);
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error = 0;
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needed = 0;
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ifcount = 0;
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last_ifindex = 0;
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|
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s = splnet();
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for (ni = ieee80211_node_walkfirst(&nw, ifindex); ni != NULL;
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ni = ieee80211_node_walknext(&nw)) {
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struct ieee80211com *ic;
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|
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ic = nw.nw_ic;
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cur_ifindex = ic->ic_ifp->if_index;
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|
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if (cur_ifindex != last_ifindex) {
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saw_bss = 0;
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ifcount++;
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last_ifindex = cur_ifindex;
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}
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|
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if (nelt <= 0)
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continue;
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|
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if (saw_bss && ni == ic->ic_bss)
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continue;
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else if (ni == ic->ic_bss) {
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saw_bss = 1;
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flags = IEEE80211_NODE_SYSCTL_F_BSS;
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} else
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flags = 0;
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if (ni->ni_table == &ic->ic_scan)
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flags |= IEEE80211_NODE_SYSCTL_F_SCAN;
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else if (ni->ni_table == &ic->ic_sta)
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flags |= IEEE80211_NODE_SYSCTL_F_STA;
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if (len >= eltsize) {
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ieee80211_sysctl_fill_node(ni, &ns, cur_ifindex,
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&ic->ic_channels[0], flags);
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error = copyout(&ns, dp, out_size);
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if (error)
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goto cleanup;
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dp += eltsize;
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len -= eltsize;
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}
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needed += eltsize;
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if (nelt != INT_MAX)
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nelt--;
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}
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cleanup:
|
|
splx(s);
|
|
|
|
*oldlenp = needed;
|
|
if (oldp == NULL)
|
|
*oldlenp += ifcount * IEEE80211_SYSCTL_NODE_GROWTH * eltsize;
|
|
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Setup sysctl(3) MIB, net.ieee80211.*
|
|
*
|
|
* TBD condition CTLFLAG_PERMANENT on being a module or not
|
|
*/
|
|
SYSCTL_SETUP(sysctl_ieee80211, "sysctl ieee80211 subtree setup")
|
|
{
|
|
int rc;
|
|
const struct sysctlnode *cnode, *rnode;
|
|
|
|
if ((rnode = ieee80211_sysctl_treetop(clog)) == NULL)
|
|
return;
|
|
|
|
if ((rc = sysctl_createv(clog, 0, &rnode, NULL,
|
|
CTLFLAG_PERMANENT, CTLTYPE_NODE, "nodes", "client/peer stations",
|
|
ieee80211_sysctl_node, 0, NULL, 0, CTL_CREATE, CTL_EOL)) != 0)
|
|
goto err;
|
|
|
|
#ifdef IEEE80211_DEBUG
|
|
/* control debugging printfs */
|
|
if ((rc = sysctl_createv(clog, 0, &rnode, &cnode,
|
|
CTLFLAG_PERMANENT|CTLFLAG_READWRITE, CTLTYPE_INT,
|
|
"debug", SYSCTL_DESCR("control debugging printfs"),
|
|
NULL, 0, &ieee80211_debug, 0, CTL_CREATE, CTL_EOL)) != 0)
|
|
goto err;
|
|
#endif /* IEEE80211_DEBUG */
|
|
|
|
return;
|
|
err:
|
|
printf("%s: sysctl_createv failed (rc = %d)\n", __func__, rc);
|
|
}
|
|
|
|
int
|
|
ieee80211_node_dectestref(struct ieee80211_node *ni)
|
|
{
|
|
if (atomic_dec_uint_nv(&ni->ni_refcnt) == 0) {
|
|
atomic_inc_uint(&ni->ni_refcnt);
|
|
return 1;
|
|
} else
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
ieee80211_drain_ifq(struct ifqueue *ifq)
|
|
{
|
|
struct ieee80211_node *ni;
|
|
struct mbuf *m;
|
|
|
|
for (;;) {
|
|
IF_DEQUEUE(ifq, m);
|
|
if (m == NULL)
|
|
break;
|
|
|
|
ni = (struct ieee80211_node *)m->m_pkthdr.rcvif;
|
|
KASSERT(ni != NULL);
|
|
ieee80211_free_node(ni);
|
|
m->m_pkthdr.rcvif = NULL;
|
|
|
|
m_freem(m);
|
|
}
|
|
}
|
|
|
|
|
|
void
|
|
if_printf(struct ifnet *ifp, const char *fmt, ...)
|
|
{
|
|
va_list ap;
|
|
va_start(ap, fmt);
|
|
|
|
printf("%s: ", ifp->if_xname);
|
|
vprintf(fmt, ap);
|
|
|
|
va_end(ap);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Set the m_data pointer of a newly-allocated mbuf
|
|
* to place an object of the specified size at the
|
|
* end of the mbuf, longword aligned.
|
|
*/
|
|
void
|
|
m_align(struct mbuf *m, int len)
|
|
{
|
|
int adjust;
|
|
|
|
if (m->m_flags & M_EXT)
|
|
adjust = m->m_ext.ext_size - len;
|
|
else if (m->m_flags & M_PKTHDR)
|
|
adjust = MHLEN - len;
|
|
else
|
|
adjust = MLEN - len;
|
|
m->m_data += adjust &~ (sizeof(long)-1);
|
|
}
|
|
|
|
/*
|
|
* Append the specified data to the indicated mbuf chain,
|
|
* Extend the mbuf chain if the new data does not fit in
|
|
* existing space.
|
|
*
|
|
* Return 1 if able to complete the job; otherwise 0.
|
|
*/
|
|
int
|
|
m_append(struct mbuf *m0, int len, const void *cpv)
|
|
{
|
|
struct mbuf *m, *n;
|
|
int remainder, space;
|
|
const char *cp = cpv;
|
|
|
|
for (m = m0; m->m_next != NULL; m = m->m_next)
|
|
continue;
|
|
remainder = len;
|
|
space = M_TRAILINGSPACE(m);
|
|
if (space > 0) {
|
|
/*
|
|
* Copy into available space.
|
|
*/
|
|
if (space > remainder)
|
|
space = remainder;
|
|
memmove(mtod(m, char *) + m->m_len, cp, space);
|
|
m->m_len += space;
|
|
cp = cp + space, remainder -= space;
|
|
}
|
|
while (remainder > 0) {
|
|
/*
|
|
* Allocate a new mbuf; could check space
|
|
* and allocate a cluster instead.
|
|
*/
|
|
n = m_get(M_DONTWAIT, m->m_type);
|
|
if (n == NULL)
|
|
break;
|
|
n->m_len = min(MLEN, remainder);
|
|
memmove(mtod(n, void *), cp, n->m_len);
|
|
cp += n->m_len, remainder -= n->m_len;
|
|
m->m_next = n;
|
|
m = n;
|
|
}
|
|
if (m0->m_flags & M_PKTHDR)
|
|
m0->m_pkthdr.len += len - remainder;
|
|
return (remainder == 0);
|
|
}
|
|
|
|
/*
|
|
* Allocate and setup a management frame of the specified
|
|
* size. We return the mbuf and a pointer to the start
|
|
* of the contiguous data area that's been reserved based
|
|
* on the packet length. The data area is forced to 32-bit
|
|
* alignment and the buffer length to a multiple of 4 bytes.
|
|
* This is done mainly so beacon frames (that require this)
|
|
* can use this interface too.
|
|
*/
|
|
struct mbuf *
|
|
ieee80211_getmgtframe(u_int8_t **frm, u_int pktlen)
|
|
{
|
|
struct mbuf *m;
|
|
u_int len;
|
|
|
|
/*
|
|
* NB: we know the mbuf routines will align the data area
|
|
* so we don't need to do anything special.
|
|
*/
|
|
/* XXX 4-address frame? */
|
|
len = roundup(sizeof(struct ieee80211_frame) + pktlen, 4);
|
|
IASSERT(len <= MCLBYTES, ("802.11 mgt frame too large: %u", len));
|
|
if (len <= MHLEN) {
|
|
m = m_gethdr(M_NOWAIT, MT_HEADER);
|
|
/*
|
|
* Align the data in case additional headers are added.
|
|
* This should only happen when a WEP header is added
|
|
* which only happens for shared key authentication mgt
|
|
* frames which all fit in MHLEN.
|
|
*/
|
|
if (m != NULL)
|
|
MH_ALIGN(m, len);
|
|
} else
|
|
m = m_getcl(M_NOWAIT, MT_HEADER, M_PKTHDR);
|
|
if (m != NULL) {
|
|
m->m_data += sizeof(struct ieee80211_frame);
|
|
*frm = m->m_data;
|
|
IASSERT((uintptr_t)*frm % 4 == 0, ("bad beacon boundary"));
|
|
}
|
|
return m;
|
|
}
|
|
|
|
void
|
|
get_random_bytes(void *p, size_t n)
|
|
{
|
|
cprng_fast(p, n);
|
|
}
|
|
|
|
void
|
|
ieee80211_notify_node_join(struct ieee80211com *ic, struct ieee80211_node *ni, int newassoc)
|
|
{
|
|
struct ifnet *ifp = ic->ic_ifp;
|
|
struct ieee80211_join_event iev;
|
|
|
|
IEEE80211_DPRINTF(ic, IEEE80211_MSG_NODE, "%s: %snode %s join\n",
|
|
ifp->if_xname, (ni == ic->ic_bss) ? "bss " : "",
|
|
ether_sprintf(ni->ni_macaddr));
|
|
|
|
memset(&iev, 0, sizeof(iev));
|
|
if (ni == ic->ic_bss) {
|
|
IEEE80211_ADDR_COPY(iev.iev_addr, ni->ni_bssid);
|
|
rt_ieee80211msg(ifp, newassoc ?
|
|
RTM_IEEE80211_ASSOC : RTM_IEEE80211_REASSOC,
|
|
&iev, sizeof(iev));
|
|
if_link_state_change(ifp, LINK_STATE_UP);
|
|
} else {
|
|
IEEE80211_ADDR_COPY(iev.iev_addr, ni->ni_macaddr);
|
|
rt_ieee80211msg(ifp, newassoc ?
|
|
RTM_IEEE80211_JOIN : RTM_IEEE80211_REJOIN,
|
|
&iev, sizeof(iev));
|
|
}
|
|
}
|
|
|
|
void
|
|
ieee80211_notify_node_leave(struct ieee80211com *ic, struct ieee80211_node *ni)
|
|
{
|
|
struct ifnet *ifp = ic->ic_ifp;
|
|
struct ieee80211_leave_event iev;
|
|
|
|
IEEE80211_DPRINTF(ic, IEEE80211_MSG_NODE, "%s: %snode %s leave\n",
|
|
ifp->if_xname, (ni == ic->ic_bss) ? "bss " : "",
|
|
ether_sprintf(ni->ni_macaddr));
|
|
|
|
if (ni == ic->ic_bss) {
|
|
rt_ieee80211msg(ifp, RTM_IEEE80211_DISASSOC, NULL, 0);
|
|
if_link_state_change(ifp, LINK_STATE_DOWN);
|
|
} else {
|
|
/* fire off wireless event station leaving */
|
|
memset(&iev, 0, sizeof(iev));
|
|
IEEE80211_ADDR_COPY(iev.iev_addr, ni->ni_macaddr);
|
|
rt_ieee80211msg(ifp, RTM_IEEE80211_LEAVE, &iev, sizeof(iev));
|
|
}
|
|
}
|
|
|
|
void
|
|
ieee80211_notify_scan_done(struct ieee80211com *ic)
|
|
{
|
|
struct ifnet *ifp = ic->ic_ifp;
|
|
|
|
IEEE80211_DPRINTF(ic, IEEE80211_MSG_SCAN,
|
|
"%s: notify scan done\n", ic->ic_ifp->if_xname);
|
|
|
|
/* dispatch wireless event indicating scan completed */
|
|
rt_ieee80211msg(ifp, RTM_IEEE80211_SCAN, NULL, 0);
|
|
}
|
|
|
|
void
|
|
ieee80211_notify_replay_failure(struct ieee80211com *ic,
|
|
const struct ieee80211_frame *wh, const struct ieee80211_key *k,
|
|
u_int64_t rsc)
|
|
{
|
|
struct ifnet *ifp = ic->ic_ifp;
|
|
|
|
IEEE80211_DPRINTF(ic, IEEE80211_MSG_CRYPTO,
|
|
"[%s] %s replay detected <rsc %ju, csc %ju, keyix %u rxkeyix %u>\n",
|
|
ether_sprintf(wh->i_addr2), k->wk_cipher->ic_name,
|
|
(intmax_t) rsc, (intmax_t) k->wk_keyrsc,
|
|
k->wk_keyix, k->wk_rxkeyix);
|
|
|
|
if (ifp != NULL) { /* NB: for cipher test modules */
|
|
struct ieee80211_replay_event iev;
|
|
|
|
IEEE80211_ADDR_COPY(iev.iev_dst, wh->i_addr1);
|
|
IEEE80211_ADDR_COPY(iev.iev_src, wh->i_addr2);
|
|
iev.iev_cipher = k->wk_cipher->ic_cipher;
|
|
if (k->wk_rxkeyix != IEEE80211_KEYIX_NONE)
|
|
iev.iev_keyix = k->wk_rxkeyix;
|
|
else
|
|
iev.iev_keyix = k->wk_keyix;
|
|
iev.iev_keyrsc = k->wk_keyrsc;
|
|
iev.iev_rsc = rsc;
|
|
rt_ieee80211msg(ifp, RTM_IEEE80211_REPLAY, &iev, sizeof(iev));
|
|
}
|
|
}
|
|
|
|
void
|
|
ieee80211_notify_michael_failure(struct ieee80211com *ic,
|
|
const struct ieee80211_frame *wh, u_int keyix)
|
|
{
|
|
struct ifnet *ifp = ic->ic_ifp;
|
|
|
|
IEEE80211_DPRINTF(ic, IEEE80211_MSG_CRYPTO,
|
|
"[%s] michael MIC verification failed <keyix %u>\n",
|
|
ether_sprintf(wh->i_addr2), keyix);
|
|
ic->ic_stats.is_rx_tkipmic++;
|
|
|
|
if (ifp != NULL) { /* NB: for cipher test modules */
|
|
struct ieee80211_michael_event iev;
|
|
|
|
IEEE80211_ADDR_COPY(iev.iev_dst, wh->i_addr1);
|
|
IEEE80211_ADDR_COPY(iev.iev_src, wh->i_addr2);
|
|
iev.iev_cipher = IEEE80211_CIPHER_TKIP;
|
|
iev.iev_keyix = keyix;
|
|
rt_ieee80211msg(ifp, RTM_IEEE80211_MICHAEL, &iev, sizeof(iev));
|
|
}
|
|
}
|
|
|
|
void
|
|
ieee80211_load_module(const char *modname)
|
|
{
|
|
#ifdef notyet
|
|
struct thread *td = curthread;
|
|
|
|
if (suser(td) == 0 && securelevel_gt(td->td_ucred, 0) == 0) {
|
|
mtx_lock(&Giant);
|
|
(void) linker_load_module(modname, NULL, NULL, NULL, NULL);
|
|
mtx_unlock(&Giant);
|
|
}
|
|
#else
|
|
printf("%s: load the %s module by hand for now.\n", __func__, modname);
|
|
#endif
|
|
}
|