57c1493b3a
OR the flags bits with the driver managed status flags. This fixes an issue where RUNNING flags would not be reported to processes, which conflicts with the flags information provided by ifconfig(8).
145 lines
4.5 KiB
C
145 lines
4.5 KiB
C
/*-
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* Copyright 1996 Massachusetts Institute of Technology
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*
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* Permission to use, copy, modify, and distribute this software and
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* its documentation for any purpose and without fee is hereby
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* granted, provided that both the above copyright notice and this
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* permission notice appear in all copies, that both the above
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* copyright notice and this permission notice appear in all
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* supporting documentation, and that the name of M.I.T. not be used
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* in advertising or publicity pertaining to distribution of the
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* software without specific, written prior permission. M.I.T. makes
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* no representations about the suitability of this software for any
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* purpose. It is provided "as is" without express or implied
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* warranty.
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*
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* THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''. M.I.T. DISCLAIMS
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* ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
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* SHALL M.I.T. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/socket.h>
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#include <sys/sysctl.h>
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#include <net/if.h>
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#include <net/if_mib.h>
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/*
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* A sysctl(3) MIB for generic interface information. This information
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* is exported in the net.link.generic branch, which has the following
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* structure:
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*
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* net.link.generic .system - system-wide control variables
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* and statistics (node)
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* .ifdata.<ifindex>.general
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* - what's in `struct ifdata'
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* plus some other info
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* .ifdata.<ifindex>.linkspecific
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* - a link-type-specific data
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* structure (as might be used
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* by an SNMP agent
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*
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* Perhaps someday we will make addresses accessible via this interface
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* as well (then there will be four such...). The reason that the
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* index comes before the last element in the name is because it
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* seems more orthogonal that way, particularly with the possibility
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* of other per-interface data living down here as well (e.g., integrated
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* services stuff).
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*/
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SYSCTL_DECL(_net_link_generic);
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SYSCTL_NODE(_net_link_generic, IFMIB_SYSTEM, system, CTLFLAG_RW, 0,
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"Variables global to all interfaces");
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SYSCTL_INT(_net_link_generic_system, IFMIB_IFCOUNT, ifcount, CTLFLAG_RD,
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&if_index, 0, "Number of configured interfaces");
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static int
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sysctl_ifdata(SYSCTL_HANDLER_ARGS) /* XXX bad syntax! */
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{
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int *name = (int *)arg1;
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int error;
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u_int namelen = arg2;
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struct ifnet *ifp;
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struct ifmibdata ifmd;
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if (namelen != 2)
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return EINVAL;
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if (name[0] <= 0 || name[0] > if_index ||
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ifaddr_byindex(name[0]) == NULL)
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return ENOENT;
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ifp = ifaddr_byindex(name[0])->ifa_ifp;
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switch(name[1]) {
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default:
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return ENOENT;
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case IFDATA_GENERAL:
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bzero(&ifmd, sizeof(ifmd));
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strlcpy(ifmd.ifmd_name, ifp->if_xname, sizeof(ifmd.ifmd_name));
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#define COPY(fld) ifmd.ifmd_##fld = ifp->if_##fld
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COPY(pcount);
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COPY(data);
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#undef COPY
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ifmd.ifmd_flags = ifp->if_flags | ifp->if_drv_flags;
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ifmd.ifmd_snd_len = ifp->if_snd.ifq_len;
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ifmd.ifmd_snd_maxlen = ifp->if_snd.ifq_maxlen;
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ifmd.ifmd_snd_drops = ifp->if_snd.ifq_drops;
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error = SYSCTL_OUT(req, &ifmd, sizeof ifmd);
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if (error || !req->newptr)
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return error;
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error = SYSCTL_IN(req, &ifmd, sizeof ifmd);
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if (error)
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return error;
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#define DONTCOPY(fld) ifmd.ifmd_data.ifi_##fld = ifp->if_data.ifi_##fld
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DONTCOPY(type);
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DONTCOPY(physical);
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DONTCOPY(addrlen);
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DONTCOPY(hdrlen);
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DONTCOPY(mtu);
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DONTCOPY(metric);
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DONTCOPY(baudrate);
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#undef DONTCOPY
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#define COPY(fld) ifp->if_##fld = ifmd.ifmd_##fld
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COPY(data);
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ifp->if_snd.ifq_maxlen = ifmd.ifmd_snd_maxlen;
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ifp->if_snd.ifq_drops = ifmd.ifmd_snd_drops;
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#undef COPY
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break;
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case IFDATA_LINKSPECIFIC:
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error = SYSCTL_OUT(req, ifp->if_linkmib, ifp->if_linkmiblen);
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if (error || !req->newptr)
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return error;
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error = SYSCTL_IN(req, ifp->if_linkmib, ifp->if_linkmiblen);
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if (error)
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return error;
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}
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return 0;
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}
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SYSCTL_NODE(_net_link_generic, IFMIB_IFDATA, ifdata, CTLFLAG_RW,
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sysctl_ifdata, "Interface table");
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