X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/3a60a9f5b85abb8c2cf24e1926c5c7b3f608a5e2..a991bd8d3e7fe02dbca0644054bab73c5b75324a:/bsd/net/if_mib.c?ds=sidebyside diff --git a/bsd/net/if_mib.c b/bsd/net/if_mib.c index d78dabb5b..a3ca1b89e 100644 --- a/bsd/net/if_mib.c +++ b/bsd/net/if_mib.c @@ -1,23 +1,29 @@ /* - * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. + * Copyright (c) 2000-2020 Apple Inc. All rights reserved. * - * @APPLE_LICENSE_HEADER_START@ - * - * The contents of this file constitute Original Code as defined in and - * are subject to the Apple Public Source License Version 1.1 (the - * "License"). You may not use this file except in compliance with the - * License. Please obtain a copy of the License at - * http://www.apple.com/publicsource and read it before using this file. - * - * This Original Code and all software distributed under the License are - * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER + * @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 + * 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 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the - * License for the specific language governing rights and limitations - * under the License. - * - * @APPLE_LICENSE_HEADER_END@ + * 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@ */ /* * Copyright 1996 Massachusetts Institute of Technology @@ -33,7 +39,7 @@ * 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 @@ -59,8 +65,7 @@ #include #include - -#if NETMIBS +#include /* * A sysctl(3) MIB for generic interface information. This information @@ -87,57 +92,61 @@ SYSCTL_DECL(_net_link_generic); -SYSCTL_NODE(_net_link_generic, IFMIB_SYSTEM, system, CTLFLAG_RD, 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; -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; -SYSCTL_NODE(_net_link_generic, IFMIB_IFALLDATA, ifalldata, CTLFLAG_RD, - sysctl_ifalldata, "Interface table"); +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 *); - -int +int make_ifmibdata(struct ifnet *ifp, int *name, struct sysctl_req *req) { - struct ifmibdata ifmd; + struct ifmibdata ifmd; int error = 0; - - switch(name[1]) { + + switch (name[1]) { default: error = ENOENT; break; case IFDATA_GENERAL: - 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 - COPY(pcount); - COPY(flags); - if_data_internal_to_if_data64(&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 - 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); - if (error || !req->newptr) + if (error || !req->newptr) { break; + } #ifdef IF_MIB_WR error = SYSCTL_IN(req, &ifmd, sizeof ifmd); - if (error) + if (error) { break; + } #define DONTCOPY(fld) ifmd.ifmd_data.ifi_##fld = ifp->if_data.ifi_##fld DONTCOPY(type); @@ -158,67 +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); - if (error || !req->newptr) + if (error || !req->newptr) { break; + } #ifdef IF_MIB_WR error = SYSCTL_IN(req, ifp->if_linkmib, ifp->if_linkmiblen); - if (error) + if (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_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! */ { +#pragma unused(oidp) int *name = (int *)arg1; int error = 0; u_int namelen = arg2; struct ifnet *ifp; - if (namelen != 2) + if (namelen != 2) { return EINVAL; + } + ifnet_head_lock_shared(); if (name[0] <= 0 || name[0] > if_index || - (ifp = ifindex2ifnet[name[0]]) == NULL) + (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; } 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; - if (namelen != 2) + 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) + if (error != 0) { break; + } } ifnet_head_done(); return error; } - -#endif