xnu-4570.51.1.tar.gz

[apple/xnu.git] / bsd / net / if_mib.c

diff --git a/bsd/net/if_mib.c b/bsd/net/if_mib.c
index 483d739fb096f3b72f2e77e7b67a6f63a79fbf99..92544dd1e744e0214344da96b20c9cc434e8d6fc 100644 (file)
--- a/bsd/net/if_mib.c
+++ b/bsd/net/if_mib.c
@@ -1,16 +1,19 @@
 /*
 /*

- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2013 Apple Inc. All rights reserved.

  *
  *

- * @APPLE_LICENSE_HEADER_START@
- * 
- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@

  * 
  * This file contains Original Code and/or Modifications of Original Code
  * as defined in and that are subject to the Apple Public Source License
  * Version 2.0 (the 'License'). You may not use this file except in
  * 
  * This file contains Original Code and/or Modifications of Original Code
  * as defined in and that are subject to the Apple Public Source License
  * Version 2.0 (the 'License'). You may not use this file except in

- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ * 
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.

  * 
  * The Original Code and all software distributed under the License are
  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * 
  * The Original Code and all software distributed under the License are
  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER


@@ -20,7 +23,7 @@
  * Please see the License for the specific language governing rights and
  * limitations under the License.
  * 
  * Please see the License for the specific language governing rights and
  * limitations under the License.
  * 

- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@

  */
 /*
  * Copyright 1996 Massachusetts Institute of Technology
  */
 /*
  * Copyright 1996 Massachusetts Institute of Technology


@@ -58,11 +61,11 @@
 #include <sys/kernel.h>
 #include <sys/socket.h>
 #include <sys/sysctl.h>
 #include <sys/kernel.h>
 #include <sys/socket.h>
 #include <sys/sysctl.h>

+#include <sys/systm.h>

 
 #include <net/if.h>
 #include <net/if_mib.h>
 
 #include <net/if.h>
 #include <net/if_mib.h>

-
-#if NETMIBS
+#include <net/if_var.h>

 
 /*
  * A sysctl(3) MIB for generic interface information.  This information
 
 /*
  * A sysctl(3) MIB for generic interface information.  This information


@@ -88,60 +91,60 @@
  */
 
 SYSCTL_DECL(_net_link_generic);
  */
 
 SYSCTL_DECL(_net_link_generic);

-SYSCTL_NODE(_net_link_generic, IFMIB_SYSTEM, system, CTLFLAG_RW, 0,
+
+SYSCTL_NODE(_net_link_generic, IFMIB_SYSTEM, system, CTLFLAG_RD|CTLFLAG_LOCKED, 0,

            "Variables global to all interfaces");
            "Variables global to all interfaces");

-SYSCTL_INT(_net_link_generic_system, IFMIB_IFCOUNT, ifcount, CTLFLAG_RD,
+
+SYSCTL_INT(_net_link_generic_system, IFMIB_IFCOUNT, ifcount, CTLFLAG_RD | CTLFLAG_LOCKED,

           &if_index, 0, "Number of configured interfaces");
 
           &if_index, 0, "Number of configured interfaces");
 

-static int
-sysctl_ifdata SYSCTL_HANDLER_ARGS /* XXX bad syntax! */
-{
-       int *name = (int *)arg1;
-       int error, ifnlen;
-       u_int namelen = arg2;
-       struct ifnet *ifp;
-       char workbuf[64];
-       struct ifmibdata ifmd;
+static int sysctl_ifdata SYSCTL_HANDLER_ARGS;
+SYSCTL_NODE(_net_link_generic, IFMIB_IFDATA, ifdata, CTLFLAG_RD | CTLFLAG_LOCKED,
+            sysctl_ifdata, "Interface table");

 
 

-       if (namelen != 2)
-               return EINVAL;
+static int sysctl_ifalldata SYSCTL_HANDLER_ARGS;
+SYSCTL_NODE(_net_link_generic, IFMIB_IFALLDATA, ifalldata, CTLFLAG_RD | CTLFLAG_LOCKED,
+            sysctl_ifalldata, "Interface table");

 
 

-       if (name[0] <= 0 || name[0] > if_index)
-               return ENOENT;
+static int make_ifmibdata(struct ifnet *, int *, struct sysctl_req *);

 
 

-       ifp = ifnet_addrs[name[0] - 1]->ifa_ifp;
+int
+make_ifmibdata(struct ifnet *ifp, int *name, struct sysctl_req *req)
+{
+       struct ifmibdata        ifmd;
+       int error = 0;

 
        switch(name[1]) {
        default:
 
        switch(name[1]) {
        default:

-               return ENOENT;
+               error = ENOENT;
+               break;

 
        case IFDATA_GENERAL:
 
        case IFDATA_GENERAL:

-           /*
-               ifnlen = snprintf(workbuf, sizeof(workbuf),
-                   "%s%d", ifp->if_name, ifp->if_unit);
-               if(ifnlen + 1 > sizeof ifmd.ifmd_name) {
-                       return ENAMETOOLONG;
-               } else {
-                       strcpy(ifmd.ifmd_name, workbuf);
-               }
-           */
+               bzero(&ifmd, sizeof(ifmd));
+               /*
+                * Make sure the interface is in use
+                */
+               if (ifnet_is_attached(ifp, 0)) {
+                       snprintf(ifmd.ifmd_name, sizeof(ifmd.ifmd_name), "%s",
+                               if_name(ifp));

 
 #define COPY(fld) ifmd.ifmd_##fld = ifp->if_##fld
 
 #define COPY(fld) ifmd.ifmd_##fld = ifp->if_##fld

-               COPY(pcount);
-               COPY(flags);
-               COPY(data);
+                       COPY(pcount);
+                       COPY(flags);
+                       if_data_internal_to_if_data64(ifp, &ifp->if_data, &ifmd.ifmd_data);

 #undef COPY
 #undef COPY

-               ifmd.ifmd_snd_len = ifp->if_snd.ifq_len;
-               ifmd.ifmd_snd_maxlen = ifp->if_snd.ifq_maxlen;
-               ifmd.ifmd_snd_drops = ifp->if_snd.ifq_drops;
-
+                       ifmd.ifmd_snd_len = IFCQ_LEN(&ifp->if_snd);
+                       ifmd.ifmd_snd_maxlen = IFCQ_MAXLEN(&ifp->if_snd);
+                       ifmd.ifmd_snd_drops = ifp->if_snd.ifcq_dropcnt.packets;
+               }

                error = SYSCTL_OUT(req, &ifmd, sizeof ifmd);
                if (error || !req->newptr)
                error = SYSCTL_OUT(req, &ifmd, sizeof ifmd);
                if (error || !req->newptr)

-                       return error;
+                       break;

 
 

+#ifdef IF_MIB_WR

                error = SYSCTL_IN(req, &ifmd, sizeof ifmd);
                if (error)
                error = SYSCTL_IN(req, &ifmd, sizeof ifmd);
                if (error)

-                       return error;
+                       break;

 
 #define DONTCOPY(fld) ifmd.ifmd_data.ifi_##fld = ifp->if_data.ifi_##fld
                DONTCOPY(type);
 
 #define DONTCOPY(fld) ifmd.ifmd_data.ifi_##fld = ifp->if_data.ifi_##fld
                DONTCOPY(type);


@@ -157,22 +160,101 @@ sysctl_ifdata SYSCTL_HANDLER_ARGS /* XXX bad syntax! */
                ifp->if_snd.ifq_maxlen = ifmd.ifmd_snd_maxlen;
                ifp->if_snd.ifq_drops = ifmd.ifmd_snd_drops;
 #undef COPY
                ifp->if_snd.ifq_maxlen = ifmd.ifmd_snd_maxlen;
                ifp->if_snd.ifq_drops = ifmd.ifmd_snd_drops;
 #undef COPY

+#endif /* IF_MIB_WR */

                break;
 
        case IFDATA_LINKSPECIFIC:
                error = SYSCTL_OUT(req, ifp->if_linkmib, ifp->if_linkmiblen);
                if (error || !req->newptr)
                break;
 
        case IFDATA_LINKSPECIFIC:
                error = SYSCTL_OUT(req, ifp->if_linkmib, ifp->if_linkmiblen);
                if (error || !req->newptr)

-                       return error;
+                       break;

 
 

+#ifdef IF_MIB_WR

                error = SYSCTL_IN(req, ifp->if_linkmib, ifp->if_linkmiblen);
                if (error)
                error = SYSCTL_IN(req, ifp->if_linkmib, ifp->if_linkmiblen);
                if (error)

-                       return error;
-               
+                       break;
+#endif /* IF_MIB_WR */
+               break;
+
+       case IFDATA_SUPPLEMENTAL: {
+               struct ifmibdata_supplemental *ifmd_supp;
+
+               if ((ifmd_supp = _MALLOC(sizeof (*ifmd_supp), M_TEMP,
+                   M_NOWAIT | M_ZERO)) == NULL) {
+                       error = ENOMEM;
+                       break;
+               }
+
+               if_copy_traffic_class(ifp, &ifmd_supp->ifmd_traffic_class);
+               if_copy_data_extended(ifp, &ifmd_supp->ifmd_data_extended);
+               if_copy_packet_stats(ifp, &ifmd_supp->ifmd_packet_stats);
+               if_copy_rxpoll_stats(ifp, &ifmd_supp->ifmd_rxpoll_stats);
+
+               if (req->oldptr == USER_ADDR_NULL)
+                       req->oldlen = sizeof (*ifmd_supp);
+
+               error = SYSCTL_OUT(req, ifmd_supp, MIN(sizeof (*ifmd_supp),
+                   req->oldlen));
+
+               _FREE(ifmd_supp, M_TEMP);
+               break;

        }
        }

-       return 0;
+       }
+
+       return error;
+}
+
+int
+sysctl_ifdata SYSCTL_HANDLER_ARGS /* XXX bad syntax! */
+{
+#pragma unused(oidp)
+       int *name = (int *)arg1;
+       int error = 0;
+       u_int namelen = arg2;
+       struct ifnet *ifp;
+
+       if (namelen != 2)
+               return (EINVAL);
+
+       ifnet_head_lock_shared();
+       if (name[0] <= 0 || name[0] > if_index ||
+           (ifp = ifindex2ifnet[name[0]]) == NULL) {
+               ifnet_head_done();
+               return (ENOENT);
+       }
+       ifnet_reference(ifp);
+       ifnet_head_done();
+
+       ifnet_lock_shared(ifp);
+       error = make_ifmibdata(ifp, name, req);
+       ifnet_lock_done(ifp);
+
+       ifnet_release(ifp);
+
+       return (error);

 }
 
 }
 

-SYSCTL_NODE(_net_link_generic, IFMIB_IFDATA, ifdata, CTLFLAG_RW,
-           sysctl_ifdata, "Interface table");
+int
+sysctl_ifalldata SYSCTL_HANDLER_ARGS /* XXX bad syntax! */
+{
+#pragma unused(oidp)
+       int *name = (int *)arg1;
+       int error = 0;
+       u_int namelen = arg2;
+       struct ifnet *ifp;

 
 

-#endif
+       if (namelen != 2)
+               return (EINVAL);
+
+       ifnet_head_lock_shared();
+       TAILQ_FOREACH(ifp, &ifnet_head, if_link) {
+               ifnet_lock_shared(ifp);
+
+               error = make_ifmibdata(ifp, name, req);
+
+               ifnet_lock_done(ifp);
+               if (error != 0)
+                       break;
+       }
+       ifnet_head_done();
+       return error;
+}