xnu-7195.81.3.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 b4abc7f16c522a6cc23ecfc92a49b0662e8dbdb4..a3ca1b89e8c11c8e63fa16ccd0cc5a48cb78ab5a 100644 (file)
--- a/bsd/net/if_mib.c
+++ b/bsd/net/if_mib.c
@@ -1,8 +1,8 @@
 /*
 /*

- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2020 Apple Inc. All rights reserved.

  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  *
  * @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


@@ -11,10 +11,10 @@
  * 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.
  * 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.
  * 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
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * The Original Code and all software distributed under the License are
  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,


@@ -22,7 +22,7 @@
  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  * Please see the License for the specific language governing rights and
  * limitations under the License.
  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  * Please see the License for the specific language governing rights and
  * limitations under the License.

- * 
+ *

  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /*
  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /*


@@ -39,7 +39,7 @@
  * no representations about the suitability of this software for any
  * purpose.  It is provided "as is" without express or implied
  * warranty.
  * no representations about the suitability of this software for any
  * purpose.  It is provided "as is" without express or implied
  * warranty.

- * 
+ *

  * THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''.  M.I.T. DISCLAIMS
  * ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  * THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''.  M.I.T. DISCLAIMS
  * ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF


@@ -65,8 +65,7 @@
 
 #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


@@ -93,71 +92,61 @@
 
 SYSCTL_DECL(_net_link_generic);
 
 
 SYSCTL_DECL(_net_link_generic);
 

-SYSCTL_NODE(_net_link_generic, IFMIB_SYSTEM, system, CTLFLAG_RD|CTLFLAG_LOCKED, 0,
-           "Variables global to all interfaces");
+SYSCTL_NODE(_net_link_generic, IFMIB_SYSTEM, system, CTLFLAG_RD | CTLFLAG_LOCKED, 0,
+    "Variables global to all interfaces");

 
 

-SYSCTL_INT(_net_link_generic_system, IFMIB_IFCOUNT, ifcount, CTLFLAG_RD,
-          &if_index, 0, "Number of configured interfaces");
+SYSCTL_INT(_net_link_generic_system, IFMIB_IFCOUNT, ifcount, CTLFLAG_RD | CTLFLAG_LOCKED,
+    &if_index, 0, "Number of configured interfaces");

 
 static int sysctl_ifdata SYSCTL_HANDLER_ARGS;
 
 static int sysctl_ifdata SYSCTL_HANDLER_ARGS;

-SYSCTL_NODE(_net_link_generic, IFMIB_IFDATA, ifdata, CTLFLAG_RD,
-            sysctl_ifdata, "Interface table");
+SYSCTL_NODE(_net_link_generic, IFMIB_IFDATA, ifdata, CTLFLAG_RD | CTLFLAG_LOCKED,
+    sysctl_ifdata, "Interface table");

 
 static int sysctl_ifalldata SYSCTL_HANDLER_ARGS;
 
 static int sysctl_ifalldata SYSCTL_HANDLER_ARGS;

-SYSCTL_NODE(_net_link_generic, IFMIB_IFALLDATA, ifalldata, CTLFLAG_RD,
-            sysctl_ifalldata, "Interface table");
-
-extern int dlil_multithreaded_input;
-SYSCTL_INT(_net_link_generic_system, OID_AUTO, multi_threaded_input, CTLFLAG_RW,
-                   &dlil_multithreaded_input , 0, "Uses multiple input thread for DLIL input");
-#ifdef IFNET_INPUT_SANITY_CHK
-extern int dlil_input_sanity_check;
-SYSCTL_INT(_net_link_generic_system, OID_AUTO, dlil_input_sanity_check, CTLFLAG_RW,
-                   &dlil_input_sanity_check , 0, "Turn on sanity checking in DLIL input");
-#endif
-
-extern int dlil_verbose;
-SYSCTL_INT(_net_link_generic_system, OID_AUTO, dlil_verbose, CTLFLAG_RW,
-           &dlil_verbose, 0, "Log DLIL error messages");
-
+SYSCTL_NODE(_net_link_generic, IFMIB_IFALLDATA, ifalldata, CTLFLAG_RD | CTLFLAG_LOCKED,
+    sysctl_ifalldata, "Interface table");

 
 static int make_ifmibdata(struct ifnet *, int *, struct sysctl_req *);
 
 
 static int make_ifmibdata(struct ifnet *, int *, struct sysctl_req *);
 

-
-int 
+int

 make_ifmibdata(struct ifnet *ifp, int *name, struct sysctl_req *req)
 {
 make_ifmibdata(struct ifnet *ifp, int *name, struct sysctl_req *req)
 {

-       struct ifmibdata        ifmd;
+       struct ifmibdata        ifmd;

        int error = 0;
        int error = 0;

-       
-       switch(name[1]) {
+
+       switch (name[1]) {

        default:
                error = ENOENT;
                break;
 
        case IFDATA_GENERAL:
        default:
                error = ENOENT;
                break;
 
        case IFDATA_GENERAL:

-               

                bzero(&ifmd, sizeof(ifmd));
                bzero(&ifmd, sizeof(ifmd));

-               snprintf(ifmd.ifmd_name, sizeof(ifmd.ifmd_name), "%s%d",
-                       ifp->if_name, ifp->if_unit);
+               /*
+                * 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);
-               if_data_internal_to_if_data64(ifp, &ifp->if_data, &ifmd.ifmd_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 = (unsigned int)ifp->if_snd.ifcq_dropcnt.packets;
+               }

                error = SYSCTL_OUT(req, &ifmd, sizeof ifmd);
                error = SYSCTL_OUT(req, &ifmd, sizeof ifmd);

-               if (error || !req->newptr)
+               if (error || !req->newptr) {

                        break;
                        break;

+               }

 
 #ifdef IF_MIB_WR
                error = SYSCTL_IN(req, &ifmd, sizeof ifmd);
 
 #ifdef IF_MIB_WR
                error = SYSCTL_IN(req, &ifmd, sizeof ifmd);

-               if (error)
+               if (error) {

                        break;
                        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);


@@ -178,70 +167,103 @@ make_ifmibdata(struct ifnet *ifp, int *name, struct sysctl_req *req)
 
        case IFDATA_LINKSPECIFIC:
                error = SYSCTL_OUT(req, ifp->if_linkmib, ifp->if_linkmiblen);
 
        case IFDATA_LINKSPECIFIC:
                error = SYSCTL_OUT(req, ifp->if_linkmib, ifp->if_linkmiblen);

-               if (error || !req->newptr)
+               if (error || !req->newptr) {

                        break;
                        break;

+               }

 
 #ifdef IF_MIB_WR
                error = SYSCTL_IN(req, ifp->if_linkmib, ifp->if_linkmiblen);
 
 #ifdef IF_MIB_WR
                error = SYSCTL_IN(req, ifp->if_linkmib, ifp->if_linkmiblen);

-               if (error)
+               if (error) {

                        break;
                        break;

+               }

 #endif /* IF_MIB_WR */
                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_copy_netif_stats(ifp, &ifmd_supp->ifmd_netif_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 error;
 }
 
 int
 sysctl_ifdata SYSCTL_HANDLER_ARGS /* XXX bad syntax! */
 {
        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;
 
        int *name = (int *)arg1;
        int error = 0;
        u_int namelen = arg2;
        struct ifnet *ifp;
 

-       if (namelen != 2)
+       if (namelen != 2) {

                return EINVAL;
                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_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);
        ifnet_head_done();
 
        ifnet_lock_shared(ifp);

-       

        error = make_ifmibdata(ifp, name, req);
        error = make_ifmibdata(ifp, name, req);

-       

        ifnet_lock_done(ifp);
        ifnet_lock_done(ifp);

-       
+
+       ifnet_release(ifp);
+

        return error;
 }
 
 int
 sysctl_ifalldata SYSCTL_HANDLER_ARGS /* XXX bad syntax! */
 {
        return error;
 }
 
 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;
 
        int *name = (int *)arg1;
        int error = 0;
        u_int namelen = arg2;
        struct ifnet *ifp;
 

-       if (namelen != 2)
+       if (namelen != 2) {

                return EINVAL;
                return EINVAL;

+       }

 
        ifnet_head_lock_shared();
        TAILQ_FOREACH(ifp, &ifnet_head, if_link) {
                ifnet_lock_shared(ifp);
 
        ifnet_head_lock_shared();
        TAILQ_FOREACH(ifp, &ifnet_head, if_link) {
                ifnet_lock_shared(ifp);

-               
+

                error = make_ifmibdata(ifp, name, req);
                error = make_ifmibdata(ifp, name, req);

-               
+

                ifnet_lock_done(ifp);
                ifnet_lock_done(ifp);

-               if (error)
+               if (error != 0) {

                        break;
                        break;

+               }

        }
        ifnet_head_done();
        return error;
 }
        }
        ifnet_head_done();
        return error;
 }

-
-#endif