/* * Copyright (c) 1999-2024 Apple 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 * 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, 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 (c) 1998, 1999 Apple Computer, Inc. All Rights Reserved */ /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */ /* * Mach Operating System * Copyright (c) 1987 Carnegie-Mellon University * All rights reserved. The CMU software License Agreement specifies * the terms and conditions for use and redistribution. */ /* * Copyright (c) 1994 NeXT Computer, Inc. All rights reserved. * * Copyright (c) 1982, 1986, 1988 Regents of the University of California. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)mbuf.h 8.3 (Berkeley) 1/21/94 */ /* * NOTICE: This file was modified by SPARTA, Inc. in 2005 to introduce * support for mandatory and extensible security protections. This notice * is included in support of clause 2.2 (b) of the Apple Public License, * Version 2.0. */ #ifndef _SYS_MBUF_H_ #define _SYS_MBUF_H_ #include #include #include /* u_int32_t */ #include /* u_int64_t */ #include /* u_short */ /* mbuf types */ #define MT_FREE 0 /* should be on free list */ #define MT_DATA 1 /* dynamic (data) allocation */ #define MT_HEADER 2 /* packet header */ #define MT_SOCKET 3 /* socket structure */ #define MT_PCB 4 /* protocol control block */ #define MT_RTABLE 5 /* routing tables */ #define MT_HTABLE 6 /* IMP host tables */ #define MT_ATABLE 7 /* address resolution tables */ #define MT_SONAME 8 /* socket name */ #define MT_SOOPTS 10 /* socket options */ #define MT_FTABLE 11 /* fragment reassembly header */ #define MT_RIGHTS 12 /* access rights */ #define MT_IFADDR 13 /* interface address */ #define MT_CONTROL 14 /* extra-data protocol message */ #define MT_OOBDATA 15 /* expedited data */ #define MT_TAG 16 /* volatile metadata associated to pkts */ #define MT_MAX 32 /* enough? */ enum { MTF_FREE = (1 << MT_FREE), MTF_DATA = (1 << MT_DATA), MTF_HEADER = (1 << MT_HEADER), MTF_SOCKET = (1 << MT_SOCKET), MTF_PCB = (1 << MT_PCB), MTF_RTABLE = (1 << MT_RTABLE), MTF_HTABLE = (1 << MT_HTABLE), MTF_ATABLE = (1 << MT_ATABLE), MTF_SONAME = (1 << MT_SONAME), MTF_SOOPTS = (1 << MT_SOOPTS), MTF_FTABLE = (1 << MT_FTABLE), MTF_RIGHTS = (1 << MT_RIGHTS), MTF_IFADDR = (1 << MT_IFADDR), MTF_CONTROL = (1 << MT_CONTROL), MTF_OOBDATA = (1 << MT_OOBDATA), MTF_TAG = (1 << MT_TAG), }; /* * Mbuf statistics (legacy). */ struct mbstat { u_int32_t m_mbufs; /* mbufs obtained from page pool */ u_int32_t m_clusters; /* clusters obtained from page pool */ u_int32_t m_spare; /* spare field */ u_int32_t m_clfree; /* free clusters */ u_int32_t m_drops; /* times failed to find space */ u_int32_t m_wait; /* times waited for space */ u_int32_t m_drain; /* times drained protocols for space */ u_short m_mtypes[256]; /* type specific mbuf allocations */ u_int32_t m_mcfail; /* times m_copym failed */ u_int32_t m_mpfail; /* times m_pullup failed */ u_int32_t m_msize; /* length of an mbuf */ u_int32_t m_mclbytes; /* length of an mbuf cluster */ u_int32_t m_minclsize; /* min length of data to allocate a cluster */ u_int32_t m_mlen; /* length of data in an mbuf */ u_int32_t m_mhlen; /* length of data in a header mbuf */ u_int32_t m_bigclusters; /* clusters obtained from page pool */ u_int32_t m_bigclfree; /* free clusters */ u_int32_t m_bigmclbytes; /* length of an mbuf cluster */ u_int32_t m_forcedefunct; /* times we force defunct'ed an app's sockets */ }; /* Compatibillity with 10.3 */ struct ombstat { u_int32_t m_mbufs; /* mbufs obtained from page pool */ u_int32_t m_clusters; /* clusters obtained from page pool */ u_int32_t m_spare; /* spare field */ u_int32_t m_clfree; /* free clusters */ u_int32_t m_drops; /* times failed to find space */ u_int32_t m_wait; /* times waited for space */ u_int32_t m_drain; /* times drained protocols for space */ u_short m_mtypes[256]; /* type specific mbuf allocations */ u_int32_t m_mcfail; /* times m_copym failed */ u_int32_t m_mpfail; /* times m_pullup failed */ u_int32_t m_msize; /* length of an mbuf */ u_int32_t m_mclbytes; /* length of an mbuf cluster */ u_int32_t m_minclsize; /* min length of data to allocate a cluster */ u_int32_t m_mlen; /* length of data in an mbuf */ u_int32_t m_mhlen; /* length of data in a header mbuf */ }; /* * mbuf class statistics. */ #define MAX_MBUF_CNAME 15 typedef struct mb_class_stat { char mbcl_cname[MAX_MBUF_CNAME + 1]; /* class name */ u_int32_t mbcl_size; /* buffer size */ u_int32_t mbcl_total; /* # of buffers created */ u_int32_t mbcl_active; /* # of active buffers */ u_int32_t mbcl_infree; /* # of available buffers */ u_int32_t mbcl_slab_cnt; /* # of available slabs */ #if defined(KERNEL) || defined(__LP64__) u_int32_t mbcl_pad; /* padding */ #endif /* KERNEL || __LP64__ */ u_int64_t mbcl_alloc_cnt; /* # of times alloc is called */ u_int64_t mbcl_free_cnt; /* # of times free is called */ u_int64_t mbcl_notified; /* # of notified wakeups */ u_int64_t mbcl_purge_cnt; /* # of purges so far */ u_int64_t mbcl_fail_cnt; /* # of allocation failures */ u_int32_t mbcl_ctotal; /* total only for this class */ u_int32_t mbcl_release_cnt; /* amount of memory returned */ /* * Cache layer statistics */ u_int32_t mbcl_mc_state; /* cache state (see below) */ u_int32_t mbcl_mc_cached; /* # of cached buffers */ u_int32_t mbcl_mc_waiter_cnt; /* # waiters on the cache */ u_int32_t mbcl_mc_wretry_cnt; /* # of wait retries */ u_int32_t mbcl_mc_nwretry_cnt; /* # of no-wait retry attempts */ u_int32_t mbcl_reserved[7]; /* for future use */ } mb_class_stat_t; #define MCS_DISABLED 0 /* cache is permanently disabled */ #define MCS_ONLINE 1 /* cache is online */ #define MCS_PURGING 2 /* cache is being purged */ #define MCS_OFFLINE 3 /* cache is offline (resizing) */ typedef struct mb_stat { u_int32_t mbs_cnt; /* number of classes */ #if defined(KERNEL) || defined(__LP64__) u_int32_t mbs_pad; /* padding */ #endif /* KERNEL || __LP64__ */ mb_class_stat_t mbs_class[1]; /* class array */ } mb_stat_t; #endif /* !_SYS_MBUF_H_ */