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1c79356b 1/*
39236c6e 2 * Copyright (c) 2000-2013 Apple Inc. All rights reserved.
5d5c5d0d 3 *
2d21ac55 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
1c79356b 5 *
2d21ac55
A		 6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
8f6c56a5 14 *
2d21ac55
A		 15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
8f6c56a5
A		 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
2d21ac55
A		 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
8f6c56a5 25 *
2d21ac55 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
1c79356b
A		 27 */
28/* Copyright (c) 1995, 1997 Apple Computer, Inc. All Rights Reserved */
29/*
30 * Copyright (c) 1987, 1991, 1993
31 * The Regents of the University of California. All rights reserved.
32 *
33 * Redistribution and use in source and binary forms, with or without
34 * modification, are permitted provided that the following conditions
35 * are met:
36 * 1. Redistributions of source code must retain the above copyright
37 * notice, this list of conditions and the following disclaimer.
38 * 2. Redistributions in binary form must reproduce the above copyright
39 * notice, this list of conditions and the following disclaimer in the
40 * documentation and/or other materials provided with the distribution.
41 * 3. All advertising materials mentioning features or use of this software
42 * must display the following acknowledgement:
43 * This product includes software developed by the University of
44 * California, Berkeley and its contributors.
45 * 4. Neither the name of the University nor the names of its contributors
46 * may be used to endorse or promote products derived from this software
47 * without specific prior written permission.
48 *
49 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
50 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
51 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
52 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
53 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
54 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
55 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
56 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
57 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
58 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
59 * SUCH DAMAGE.
60 *
61 * @(#)kern_malloc.c 8.4 (Berkeley) 5/20/95
62 */
2d21ac55
A		 63/*
64 * NOTICE: This file was modified by SPARTA, Inc. in 2005 to introduce
65 * support for mandatory and extensible security protections. This notice
66 * is included in support of clause 2.2 (b) of the Apple Public License,
67 * Version 2.0.
68 */
1c79356b
A		 69
70#include <sys/param.h>
71#include <sys/malloc.h>
72
73#include <sys/socket.h>
74#include <sys/socketvar.h>
75
76#include <net/route.h>
fe8ab488 77#include <net/necp.h>
1c79356b
A		 78
79#include <netinet/in.h>
80#include <netinet/in_systm.h>
81#include <netinet/ip.h>
82#include <netinet/in_pcb.h>
39236c6e 83#include <netinet/flow_divert.h>
1c79356b 84
55e303ae
A		 85#include <sys/event.h>
86#include <sys/eventvar.h>
87
91447636
A		 88#include <sys/proc_internal.h>
89#include <sys/mount_internal.h>
90#include <sys/vnode_internal.h>
91#include <sys/ubc_internal.h>
1c79356b 92#include <sys/namei.h>
91447636 93#include <sys/file_internal.h>
1c79356b
A		 94#include <sys/filedesc.h>
95#include <sys/tty.h>
9bccf70c 96#include <sys/quota.h>
91447636 97#include <sys/uio_internal.h>
0c530ab8 98#include <sys/resourcevar.h>
2d21ac55 99#include <sys/signalvar.h>
39037602 100#include <sys/decmpfs.h>
1c79356b 101
55e303ae 102#include <miscfs/specfs/specdev.h>
1c79356b
A		 103
104#include <nfs/rpcv2.h>
105#include <nfs/nfsproto.h>
106#include <nfs/nfsnode.h>
107#include <nfs/nfsmount.h>
1c79356b
A		 108
109#include <mach/mach_types.h>
110
111#include <kern/zalloc.h>
112#include <kern/kalloc.h>
113
39236c6e 114void kmeminit(void);
1c79356b 115
2d21ac55
A		 116/* Strings corresponding to types of memory.
117 * Must be in synch with the #defines is sys/malloc.h
118 * NOTE - the reason we pass null strings in some cases is to reduce of foot
119 * print as much as possible for systems where a tiny kernel is needed.
39037602 120 * todo - We should probably redesign this and use enums for our types and only
2d21ac55
A		 121 * include types needed for that configuration of the kernel. This can't be
122 * done without some kind of kpi since several types are hardwired and exported
39037602 123 * (for example see types M_UDFMNT, M_TEMP, etc in sys/malloc.h)
2d21ac55
A		 124 */
125const char *memname[] = {
126 "free", /* 0 M_FREE */
127 "mbuf", /* 1 M_MBUF */
128 "devbuf", /* 2 M_DEVBUF */
129 "socket", /* 3 M_SOCKET */
130 "pcb", /* 4 M_PCB */
131 "routetbl", /* 5 M_RTABLE */
132 "hosttbl", /* 6 M_HTABLE */
133 "fragtbl", /* 7 M_FTABLE */
134 "zombie", /* 8 M_ZOMBIE */
135 "ifaddr", /* 9 M_IFADDR */
136 "soopts", /* 10 M_SOOPTS */
137 "soname", /* 11 M_SONAME */
138 "namei", /* 12 M_NAMEI */
139 "gprof", /* 13 M_GPROF */
140 "ioctlops", /* 14 M_IOCTLOPS */
141 "mapmem", /* 15 M_MAPMEM */
142 "cred", /* 16 M_CRED */
143 "pgrp", /* 17 M_PGRP */
144 "session", /* 18 M_SESSION */
145 "iov32", /* 19 M_IOV32 */
146 "mount", /* 20 M_MOUNT */
147 "fhandle", /* 21 M_FHANDLE */
148#if (NFSCLIENT || NFSSERVER)
149 "NFS req", /* 22 M_NFSREQ */
150 "NFS mount", /* 23 M_NFSMNT */
151 "NFS node", /* 24 M_NFSNODE */
152#else
153 "", /* 22 M_NFSREQ */
154 "", /* 23 M_NFSMNT */
155 "", /* 24 M_NFSNODE */
156#endif
157 "vnodes", /* 25 M_VNODE */
158 "namecache", /* 26 M_CACHE */
159#if QUOTA
160 "UFS quota", /* 27 M_DQUOT */
161#else
162 "", /* 27 M_DQUOT */
163#endif
39236c6e 164 "proc uuid policy", /* 28 M_PROC_UUID_POLICY */
2d21ac55
A		 165#if (SYSV_SEM || SYSV_MSG || SYSV_SHM)
166 "shm", /* 29 M_SHM */
167#else
168 "", /* 29 M_SHM */
169#endif
170 "plimit", /* 30 M_VMMAP */
171 "sigacts", /* 31 M_VMMAPENT */
172 "VM object", /* 32 M_VMOBJ */
173 "VM objhash", /* 33 M_VMOBJHASH */
174 "VM pmap", /* 34 M_VMPMAP */
175 "VM pvmap", /* 35 M_VMPVENT */
176 "VM pager", /* 36 M_VMPAGER */
177 "VM pgdata", /* 37 M_VMPGDATA */
178 "fileproc", /* 38 M_FILEPROC */
179 "file desc", /* 39 M_FILEDESC */
180 "lockf", /* 40 M_LOCKF */
181 "proc", /* 41 M_PROC */
182 "pstats", /* 42 M_SUBPROC */
183 "LFS segment", /* 43 M_SEGMENT */
184 "LFS node", /* 44 M_LFSNODE */
2d21ac55 185 "", /* 45 M_FFSNODE */
2d21ac55
A		 186 "MFS node", /* 46 M_MFSNODE */
187 "NQNFS Lease", /* 47 M_NQLEASE */
188 "NQNFS Host", /* 48 M_NQMHOST */
189 "Export Host", /* 49 M_NETADDR */
190#if (NFSCLIENT || NFSSERVER)
191 "NFS srvsock", /* 50 M_NFSSVC */
192 "NFS uid", /* 51 M_NFSUID */
193 "NFS daemon", /* 52 M_NFSD */
194#else
195 "", /* 50 M_NFSSVC */
196 "", /* 51 M_NFSUID */
197 "", /* 52 M_NFSD */
198#endif
199 "ip_moptions", /* 53 M_IPMOPTS */
200 "in_multi", /* 54 M_IPMADDR */
201 "ether_multi", /* 55 M_IFMADDR */
202 "mrt", /* 56 M_MRTABLE */
b0d623f7
A		 203 "", /* 57 unused entry */
204 "", /* 58 unused entry */
2d21ac55
A		 205#if (NFSCLIENT || NFSSERVER)
206 "NFSV3 srvdesc",/* 59 M_NFSRVDESC */
207 "NFSV3 diroff", /* 60 M_NFSDIROFF */
208 "NFSV3 bigfh", /* 61 M_NFSBIGFH */
209#else
210 "", /* 59 M_NFSRVDESC */
211 "", /* 60 M_NFSDIROFF */
212 "", /* 61 M_NFSBIGFH */
213#endif
214 "MSDOSFS mount",/* 62 M_MSDOSFSMNT */
215 "MSDOSFS fat", /* 63 M_MSDOSFSFAT */
216 "MSDOSFS node", /* 64 M_MSDOSFSNODE */
217 "ttys", /* 65 M_TTYS */
218 "exec", /* 66 M_EXEC */
219 "miscfs mount", /* 67 M_MISCFSMNT */
220 "miscfs node", /* 68 M_MISCFSNODE */
221 "adosfs mount", /* 69 M_ADOSFSMNT */
222 "adosfs node", /* 70 M_ADOSFSNODE */
223 "adosfs anode", /* 71 M_ANODE */
224 "buf hdrs", /* 72 M_BUFHDR */
225 "ofile tabl", /* 73 M_OFILETABL */
226 "mbuf clust", /* 74 M_MCLUST */
39037602
A		 227 "", /* 75 unused */
228 "", /* 76 unused */
229 "", /* 77 unused */
230 "", /* 78 unused */
231 "", /* 79 unused */
2d21ac55
A		 232 "temp", /* 80 M_TEMP */
233 "key mgmt", /* 81 M_SECA */
234 "DEVFS", /* 82 M_DEVFS */
235 "IpFw/IpAcct", /* 83 M_IPFW */
236 "UDF node", /* 84 M_UDFNODE */
237 "UDF mount", /* 85 M_UDFMNT */
238#if INET6
239 "IPv6 NDP", /* 86 M_IP6NDP */
240 "IPv6 options", /* 87 M_IP6OPT */
241 "IPv6 Misc", /* 88 M_IP6MISC */
242#else
243 "", /* 86 M_IP6NDP */
244 "", /* 87 M_IP6OPT */
245 "", /* 88 M_IP6MISC */
246#endif
247 "TCP Segment Q",/* 89 M_TSEGQ */
248 "IGMP state", /* 90 M_IGMP */
39037602
A		 249 "", /* 91 unused */
250 "", /* 92 unused */
2d21ac55
A		 251 "specinfo", /* 93 M_SPECINFO */
252 "kqueue", /* 94 M_KQUEUE */
39037602
A		 253 "", /* 95 unused */
254 "cluster_read", /* 96 M_CLRDAHEAD */
2d21ac55
A		 255 "cluster_write",/* 97 M_CLWRBEHIND */
256 "iov64", /* 98 M_IOV64 */
257 "fileglob", /* 99 M_FILEGLOB */
258 "kauth", /* 100 M_KAUTH */
259 "dummynet", /* 101 M_DUMMYNET */
b0d623f7 260 "", /* 102 M_UNSAFEFS */
2d21ac55
A		 261 "macpipelabel", /* 103 M_MACPIPELABEL */
262 "mactemp", /* 104 M_MACTEMP */
263 "sbuf", /* 105 M_SBUF */
264 "extattr", /* 106 M_EXTATTR */
3e170ce0 265 "select", /* 107 M_SELECT */
2d21ac55
A		 266#if TRAFFIC_MGT
267 "traffic_mgt", /* 108 M_TRAFFIC_MGT */
268#else
269 "", /* 108 M_TRAFFIC_MGT */
270#endif
39037602 271#if FS_COMPRESSION
b0d623f7
A		 272 "decmpfs_cnode",/* 109 M_DECMPFS_CNODE */
273#else
274 "", /* 109 M_DECMPFS_CNODE */
39037602 275#endif /* FS_COMPRESSION */
6d2010ae
A		 276 "ipmfilter", /* 110 M_INMFILTER */
277 "ipmsource", /* 111 M_IPMSOURCE */
278 "in6mfilter", /* 112 M_IN6MFILTER */
279 "ip6mopts", /* 113 M_IP6MOPTS */
280 "ip6msource", /* 114 M_IP6MSOURCE */
39236c6e
A		 281#if FLOW_DIVERT
282 "flow_divert_pcb", /* 115 M_FLOW_DIVERT_PCB */
283 "flow_divert_group", /* 116 M_FLOW_DIVERT_GROUP */
284#else
285 "", /* 115 M_FLOW_DIVERT_PCB */
286 "", /* 116 M_FLOW_DIVERT_GROUP */
287#endif
288 "ip6cga", /* 117 M_IP6CGA */
fe8ab488
A		 289#if NECP
290 "necp", /* 118 M_NECP */
291 "necp_session_policy", /* 119 M_NECP_SESSION_POLICY */
292 "necp_socket_policy", /* 120 M_NECP_SOCKET_POLICY */
293 "necp_ip_policy", /* 121 M_NECP_IP_POLICY */
294#else
295 "", /* 118 M_NECP */
296 "", /* 119 M_NECP_SESSION_POLICY */
297 "", /* 120 M_NECP_SOCKET_POLICY */
298 "", /* 121 M_NECP_IP_POLICY */
299#endif
300 "fdvnodedata" /* 122 M_FD_VN_DATA */
301 "fddirbuf", /* 123 M_FD_DIRBUF */
3e170ce0 302 "netagent", /* 124 M_NETAGENT */
fe8ab488 303 ""
2d21ac55
A		 304};
305
306/* for use with kmzones.kz_zalloczone */
6d2010ae 307#define KMZ_CREATEZONE_ACCT ((void *)-3)
1c79356b
A		 308#define KMZ_CREATEZONE ((void *)-2)
309#define KMZ_LOOKUPZONE ((void *)-1)
2d21ac55 310#define KMZ_MALLOC ((void *)0)
1c79356b 311#define KMZ_SHAREZONE ((void *)1)
2d21ac55
A		 312
313struct kmzones {
314 size_t kz_elemsize;
315 void *kz_zalloczone;
0b4c1975 316 boolean_t kz_noencrypt;
1c79356b
A		 317} kmzones[M_LAST] = {
318#define SOS(sname) sizeof (struct sname)
319#define SOX(sname) -1
0b4c1975
A		 320 { -1, 0, FALSE }, /* 0 M_FREE */
321 { MSIZE, KMZ_CREATEZONE, FALSE }, /* 1 M_MBUF */
322 { 0, KMZ_MALLOC, FALSE }, /* 2 M_DEVBUF */
323 { SOS(socket), KMZ_CREATEZONE, TRUE }, /* 3 M_SOCKET */
324 { SOS(inpcb), KMZ_LOOKUPZONE, TRUE }, /* 4 M_PCB */
325 { M_MBUF, KMZ_SHAREZONE, FALSE }, /* 5 M_RTABLE */
326 { M_MBUF, KMZ_SHAREZONE, FALSE }, /* 6 M_HTABLE */
327 { M_MBUF, KMZ_SHAREZONE, FALSE }, /* 7 M_FTABLE */
328 { SOS(rusage), KMZ_CREATEZONE, TRUE }, /* 8 M_ZOMBIE */
329 { 0, KMZ_MALLOC, FALSE }, /* 9 M_IFADDR */
330 { M_MBUF, KMZ_SHAREZONE, FALSE }, /* 10 M_SOOPTS */
331 { 0, KMZ_MALLOC, FALSE }, /* 11 M_SONAME */
332 { MAXPATHLEN, KMZ_CREATEZONE, FALSE }, /* 12 M_NAMEI */
333 { 0, KMZ_MALLOC, FALSE }, /* 13 M_GPROF */
334 { 0, KMZ_MALLOC, FALSE }, /* 14 M_IOCTLOPS */
335 { 0, KMZ_MALLOC, FALSE }, /* 15 M_MAPMEM */
336 { SOS(ucred), KMZ_CREATEZONE, FALSE }, /* 16 M_CRED */
337 { SOS(pgrp), KMZ_CREATEZONE, FALSE }, /* 17 M_PGRP */
338 { SOS(session), KMZ_CREATEZONE, FALSE }, /* 18 M_SESSION */
339 { SOS(user32_iovec), KMZ_LOOKUPZONE, FALSE },/* 19 M_IOV32 */
340 { SOS(mount), KMZ_CREATEZONE, FALSE }, /* 20 M_MOUNT */
341 { 0, KMZ_MALLOC, FALSE }, /* 21 M_FHANDLE */
2d21ac55 342#if (NFSCLIENT || NFSSERVER)
0b4c1975 343 { SOS(nfsreq), KMZ_CREATEZONE, FALSE }, /* 22 M_NFSREQ */
6d2010ae 344 { SOS(nfsmount),KMZ_CREATEZONE, FALSE }, /* 23 M_NFSMNT */
0b4c1975 345 { SOS(nfsnode), KMZ_CREATEZONE, FALSE }, /* 24 M_NFSNODE */
2d21ac55 346#else
0b4c1975
A		 347 { 0, KMZ_MALLOC, FALSE }, /* 22 M_NFSREQ */
348 { 0, KMZ_MALLOC, FALSE }, /* 23 M_NFSMNT */
349 { 0, KMZ_MALLOC, FALSE }, /* 24 M_NFSNODE */
2d21ac55 350#endif
0b4c1975 351 { SOS(vnode), KMZ_CREATEZONE, TRUE }, /* 25 M_VNODE */
6d2010ae 352 { SOS(namecache), KMZ_CREATEZONE, FALSE }, /* 26 M_CACHE */
2d21ac55 353#if QUOTA
0b4c1975 354 { SOX(dquot), KMZ_LOOKUPZONE, FALSE }, /* 27 M_DQUOT */
2d21ac55 355#else
0b4c1975 356 { 0, KMZ_MALLOC, FALSE }, /* 27 M_DQUOT */
2d21ac55 357#endif
39236c6e 358 { 0, KMZ_MALLOC, FALSE }, /* 28 M_PROC_UUID_POLICY */
6d2010ae 359 { 0, KMZ_MALLOC, FALSE }, /* 29 M_SHM */
0b4c1975 360 { SOS(plimit), KMZ_CREATEZONE, TRUE }, /* 30 M_PLIMIT */
6d2010ae 361 { SOS(sigacts), KMZ_CREATEZONE_ACCT, TRUE }, /* 31 M_SIGACTS */
0b4c1975
A		 362 { 0, KMZ_MALLOC, FALSE }, /* 32 M_VMOBJ */
363 { 0, KMZ_MALLOC, FALSE }, /* 33 M_VMOBJHASH */
364 { 0, KMZ_MALLOC, FALSE }, /* 34 M_VMPMAP */
365 { 0, KMZ_MALLOC, FALSE }, /* 35 M_VMPVENT */
366 { 0, KMZ_MALLOC, FALSE }, /* 36 M_VMPAGER */
367 { 0, KMZ_MALLOC, FALSE }, /* 37 M_VMPGDATA */
6d2010ae
A		 368 { SOS(fileproc),KMZ_CREATEZONE_ACCT, TRUE }, /* 38 M_FILEPROC */
369 { SOS(filedesc),KMZ_CREATEZONE_ACCT, TRUE }, /* 39 M_FILEDESC */
370 { SOX(lockf), KMZ_CREATEZONE_ACCT, TRUE }, /* 40 M_LOCKF */
0b4c1975
A		 371 { SOS(proc), KMZ_CREATEZONE, FALSE }, /* 41 M_PROC */
372 { SOS(pstats), KMZ_CREATEZONE, TRUE }, /* 42 M_PSTATS */
373 { 0, KMZ_MALLOC, FALSE }, /* 43 M_SEGMENT */
374 { M_FFSNODE, KMZ_SHAREZONE, FALSE }, /* 44 M_LFSNODE */
375 { 0, KMZ_MALLOC, FALSE }, /* 45 M_FFSNODE */
376 { M_FFSNODE, KMZ_SHAREZONE, FALSE }, /* 46 M_MFSNODE */
377 { 0, KMZ_MALLOC, FALSE }, /* 47 M_NQLEASE */
378 { 0, KMZ_MALLOC, FALSE }, /* 48 M_NQMHOST */
379 { 0, KMZ_MALLOC, FALSE }, /* 49 M_NETADDR */
2d21ac55
A		 380#if (NFSCLIENT || NFSSERVER)
381 { SOX(nfsrv_sock),
6d2010ae 382 KMZ_CREATEZONE_ACCT, FALSE }, /* 50 M_NFSSVC */
0b4c1975 383 { 0, KMZ_MALLOC, FALSE }, /* 51 M_NFSUID */
2d21ac55 384 { SOX(nfsrvcache),
6d2010ae 385 KMZ_CREATEZONE_ACCT, FALSE }, /* 52 M_NFSD */
2d21ac55 386#else
0b4c1975
A		 387 { 0, KMZ_MALLOC, FALSE }, /* 50 M_NFSSVC */
388 { 0, KMZ_MALLOC, FALSE }, /* 51 M_NFSUID */
389 { 0, KMZ_MALLOC, FALSE }, /* 52 M_NFSD */
2d21ac55
A		 390#endif
391 { SOX(ip_moptions),
0b4c1975
A		 392 KMZ_LOOKUPZONE, FALSE }, /* 53 M_IPMOPTS */
393 { SOX(in_multi),KMZ_LOOKUPZONE, FALSE }, /* 54 M_IPMADDR */
2d21ac55 394 { SOX(ether_multi),
0b4c1975
A		 395 KMZ_LOOKUPZONE, FALSE }, /* 55 M_IFMADDR */
396 { SOX(mrt), KMZ_CREATEZONE, TRUE }, /* 56 M_MRTABLE */
397 { 0, KMZ_MALLOC, FALSE }, /* 57 unused entry */
398 { 0, KMZ_MALLOC, FALSE }, /* 58 unused entry */
2d21ac55
A		 399#if (NFSCLIENT || NFSSERVER)
400 { SOS(nfsrv_descript),
6d2010ae 401 KMZ_CREATEZONE_ACCT, FALSE }, /* 59 M_NFSRVDESC */
0b4c1975
A		 402 { SOS(nfsdmap), KMZ_CREATEZONE, FALSE }, /* 60 M_NFSDIROFF */
403 { SOS(fhandle), KMZ_LOOKUPZONE, FALSE }, /* 61 M_NFSBIGFH */
2d21ac55 404#else
0b4c1975
A		 405 { 0, KMZ_MALLOC, FALSE }, /* 59 M_NFSRVDESC */
406 { 0, KMZ_MALLOC, FALSE }, /* 60 M_NFSDIROFF */
407 { 0, KMZ_MALLOC, FALSE }, /* 61 M_NFSBIGFH */
2d21ac55 408#endif
0b4c1975
A		 409 { 0, KMZ_MALLOC, FALSE }, /* 62 M_MSDOSFSMNT */
410 { 0, KMZ_MALLOC, FALSE }, /* 63 M_MSDOSFSFAT */
411 { 0, KMZ_MALLOC, FALSE }, /* 64 M_MSDOSFSNODE */
412 { SOS(tty), KMZ_CREATEZONE, FALSE }, /* 65 M_TTYS */
413 { 0, KMZ_MALLOC, FALSE }, /* 66 M_EXEC */
414 { 0, KMZ_MALLOC, FALSE }, /* 67 M_MISCFSMNT */
415 { 0, KMZ_MALLOC, FALSE }, /* 68 M_MISCFSNODE */
416 { 0, KMZ_MALLOC, FALSE }, /* 69 M_ADOSFSMNT */
417 { 0, KMZ_MALLOC, FALSE }, /* 70 M_ADOSFSNODE */
418 { 0, KMZ_MALLOC, FALSE }, /* 71 M_ANODE */
6d2010ae 419 { 0, KMZ_MALLOC, TRUE }, /* 72 M_BUFHDR */
2d21ac55 420 { (NDFILE * OFILESIZE),
6d2010ae 421 KMZ_CREATEZONE_ACCT, FALSE }, /* 73 M_OFILETABL */
0b4c1975 422 { MCLBYTES, KMZ_CREATEZONE, FALSE }, /* 74 M_MCLUST */
39037602
A		 423 { 0, KMZ_MALLOC, FALSE }, /* 75 unused */
424 { 0, KMZ_MALLOC, FALSE }, /* 76 unused */
425 { 0, KMZ_MALLOC, FALSE }, /* 77 unused */
39236c6e
A		 426 { 0, KMZ_MALLOC, FALSE }, /* 78 unused */
427 { 0, KMZ_MALLOC, FALSE }, /* 79 unused */
0b4c1975
A		 428 { 0, KMZ_MALLOC, FALSE }, /* 80 M_TEMP */
429 { 0, KMZ_MALLOC, FALSE }, /* 81 M_SECA */
430 { 0, KMZ_MALLOC, FALSE }, /* 82 M_DEVFS */
431 { 0, KMZ_MALLOC, FALSE }, /* 83 M_IPFW */
432 { 0, KMZ_MALLOC, FALSE }, /* 84 M_UDFNODE */
433 { 0, KMZ_MALLOC, FALSE }, /* 85 M_UDFMOUNT */
434 { 0, KMZ_MALLOC, FALSE }, /* 86 M_IP6NDP */
435 { 0, KMZ_MALLOC, FALSE }, /* 87 M_IP6OPT */
436 { 0, KMZ_MALLOC, FALSE }, /* 88 M_IP6MISC */
437 { 0, KMZ_MALLOC, FALSE }, /* 89 M_TSEGQ */
438 { 0, KMZ_MALLOC, FALSE }, /* 90 M_IGMP */
39037602
A		 439 { 0, KMZ_MALLOC, FALSE }, /* 91 unused */
440 { 0, KMZ_MALLOC, FALSE }, /* 92 unused */
6d2010ae
A		 441 { SOS(specinfo),KMZ_CREATEZONE, TRUE }, /* 93 M_SPECINFO */
442 { SOS(kqueue), KMZ_CREATEZONE, FALSE }, /* 94 M_KQUEUE */
39037602 443 { 0, KMZ_MALLOC, FALSE }, /* 95 unused */
0b4c1975
A		 444 { SOS(cl_readahead), KMZ_CREATEZONE, TRUE }, /* 96 M_CLRDAHEAD */
445 { SOS(cl_writebehind),KMZ_CREATEZONE, TRUE }, /* 97 M_CLWRBEHIND */
446 { SOS(user64_iovec), KMZ_LOOKUPZONE, FALSE },/* 98 M_IOV64 */
447 { SOS(fileglob), KMZ_CREATEZONE, TRUE }, /* 99 M_FILEGLOB */
448 { 0, KMZ_MALLOC, FALSE }, /* 100 M_KAUTH */
449 { 0, KMZ_MALLOC, FALSE }, /* 101 M_DUMMYNET */
0b4c1975 450 { 0, KMZ_MALLOC, FALSE }, /* 102 M_UNSAFEFS */
0b4c1975
A		 451 { 0, KMZ_MALLOC, FALSE }, /* 103 M_MACPIPELABEL */
452 { 0, KMZ_MALLOC, FALSE }, /* 104 M_MACTEMP */
453 { 0, KMZ_MALLOC, FALSE }, /* 105 M_SBUF */
454 { 0, KMZ_MALLOC, FALSE }, /* 106 M_HFS_EXTATTR */
3e170ce0 455 { 0, KMZ_MALLOC, FALSE }, /* 107 M_SELECT */
0b4c1975 456 { 0, KMZ_MALLOC, FALSE }, /* 108 M_TRAFFIC_MGT */
39037602 457#if FS_COMPRESSION
6d2010ae 458 { SOS(decmpfs_cnode),KMZ_CREATEZONE , FALSE}, /* 109 M_DECMPFS_CNODE */
b0d623f7 459#else
0b4c1975 460 { 0, KMZ_MALLOC, FALSE }, /* 109 M_DECMPFS_CNODE */
39037602 461#endif /* FS_COMPRESSION */
6d2010ae
A		 462 { 0, KMZ_MALLOC, FALSE }, /* 110 M_INMFILTER */
463 { 0, KMZ_MALLOC, FALSE }, /* 111 M_IPMSOURCE */
464 { 0, KMZ_MALLOC, FALSE }, /* 112 M_IN6MFILTER */
465 { 0, KMZ_MALLOC, FALSE }, /* 113 M_IP6MOPTS */
466 { 0, KMZ_MALLOC, FALSE }, /* 114 M_IP6MSOURCE */
39236c6e
A		 467#if FLOW_DIVERT
468 { SOS(flow_divert_pcb), KMZ_CREATEZONE, TRUE }, /* 115 M_FLOW_DIVERT_PCB */
469 { SOS(flow_divert_group), KMZ_CREATEZONE, TRUE }, /* 116 M_FLOW_DIVERT_GROUP */
470#else
471 { 0, KMZ_MALLOC, FALSE }, /* 115 M_FLOW_DIVERT_PCB */
472 { 0, KMZ_MALLOC, FALSE }, /* 116 M_FLOW_DIVERT_GROUP */
473#endif /* FLOW_DIVERT */
474 { 0, KMZ_MALLOC, FALSE }, /* 117 M_IP6CGA */
fe8ab488
A		 475 { 0, KMZ_MALLOC, FALSE }, /* 118 M_NECP */
476#if NECP
477 { SOS(necp_session_policy), KMZ_CREATEZONE, TRUE }, /* 119 M_NECP_SESSION_POLICY */
478 { SOS(necp_kernel_socket_policy), KMZ_CREATEZONE, TRUE }, /* 120 M_NECP_SOCKET_POLICY */
479 { SOS(necp_kernel_ip_output_policy), KMZ_CREATEZONE, TRUE }, /* 121 M_NECP_IP_POLICY */
480#else
481 { 0, KMZ_MALLOC, FALSE }, /* 119 M_NECP_SESSION_POLICY */
482 { 0, KMZ_MALLOC, FALSE }, /* 120 M_NECP_SOCKET_POLICY */
483 { 0, KMZ_MALLOC, FALSE }, /* 121 M_NECP_IP_POLICY */
484#endif /* NECP */
3e170ce0
A		 485 { 0, KMZ_MALLOC, FALSE }, /* 122 M_FD_VN_DATA */
486 { 0, KMZ_MALLOC, FALSE }, /* 123 M_FD_DIRBUF */
487 { 0, KMZ_MALLOC, FALSE }, /* 124 M_NETAGENT */
1c79356b
A		 488#undef SOS
489#undef SOX
490};
491
55e303ae 492extern zone_t kalloc_zone(vm_size_t); /* XXX */
1c79356b
A		 493
494/*
495 * Initialize the kernel memory allocator
496 */
497void
498kmeminit(void)
499{
500 struct kmzones *kmz;
501
d7e50217 502 if ((sizeof(kmzones)/sizeof(kmzones[0])) != (sizeof(memname)/sizeof(memname[0]))) {
2d21ac55 503 panic("kmeminit: kmzones has %lu elements but memname has %lu\n",
d7e50217
A		 504 (sizeof(kmzones)/sizeof(kmzones[0])), (sizeof(memname)/sizeof(memname[0])));
505 }
506
1c79356b
A		 507 kmz = kmzones;
508 while (kmz < &kmzones[M_LAST]) {
509/* XXX */
2d21ac55 510 if (kmz->kz_elemsize == (size_t)(-1))
1c79356b
A		 511 ;
512 else
513/* XXX */
6d2010ae
A		 514 if (kmz->kz_zalloczone == KMZ_CREATEZONE ||
515 kmz->kz_zalloczone == KMZ_CREATEZONE_ACCT) {
1c79356b
A		 516 kmz->kz_zalloczone = zinit(kmz->kz_elemsize,
517 1024 * 1024, PAGE_SIZE,
518 memname[kmz - kmzones]);
6d2010ae
A		 519 zone_change(kmz->kz_zalloczone, Z_CALLERACCT,
520 (kmz->kz_zalloczone == KMZ_CREATEZONE_ACCT));
521
0b4c1975
A		 522 if (kmz->kz_noencrypt == TRUE)
523 zone_change(kmz->kz_zalloczone, Z_NOENCRYPT, TRUE);
1c79356b
A		 524 }
525 else if (kmz->kz_zalloczone == KMZ_LOOKUPZONE)
526 kmz->kz_zalloczone = kalloc_zone(kmz->kz_elemsize);
527
528 kmz++;
529 }
530
531 kmz = kmzones;
532 while (kmz < &kmzones[M_LAST]) {
533/* XXX */
2d21ac55 534 if (kmz->kz_elemsize == (size_t)(-1))
1c79356b
A		 535 ;
536 else
537/* XXX */
538 if (kmz->kz_zalloczone == KMZ_SHAREZONE) {
539 kmz->kz_zalloczone =
540 kmzones[kmz->kz_elemsize].kz_zalloczone;
541 kmz->kz_elemsize =
542 kmzones[kmz->kz_elemsize].kz_elemsize;
543 }
544
545 kmz++;
546 }
547}
548
91447636 549void *
3e170ce0
A		 550_MALLOC_external(
551 size_t size,
552 int type,
553 int flags);
554void *
555_MALLOC_external(
1c79356b
A		 556 size_t size,
557 int type,
558 int flags)
3e170ce0
A		 559{
560 static vm_allocation_site_t site = { VM_KERN_MEMORY_KALLOC, VM_TAG_BT };
561 return (__MALLOC(size, type, flags, &site));
562}
563
564void *
565__MALLOC(
566 size_t size,
567 int type,
568 int flags,
569 vm_allocation_site_t *site)
1c79356b 570{
39037602
A		 571 void *addr = NULL;
572 vm_size_t msize = size;
1c79356b
A		 573
574 if (type >= M_LAST)
575 panic("_malloc TYPE");
576
577 if (size == 0)
2d21ac55 578 return (NULL);
1c79356b 579
39037602
A		 580 if (msize != size) {
581 panic("Requested size to __MALLOC is too large (%llx)!\n", (uint64_t)size);
582 }
583
1c79356b 584 if (flags & M_NOWAIT) {
39037602 585 addr = (void *)kalloc_canblock(&msize, FALSE, site);
1c79356b 586 } else {
39037602
A		 587 addr = (void *)kalloc_canblock(&msize, TRUE, site);
588 if (addr == NULL) {
b0d623f7
A		 589 /*
590 * We get here when the caller told us to block waiting for memory, but
591 * kalloc said there's no memory left to get. Generally, this means there's a
592 * leak or the caller asked for an impossibly large amount of memory. Since there's
593 * nothing left to wait for and the caller isn't expecting a NULL return code, we
594 * just panic. This is less than ideal, but returning NULL doesn't help since the
595 * majority of callers don't check the return value and will just dereference the pointer and
596 * trap anyway. We may as well get a more descriptive message out while we can.
597 */
598
599 panic("_MALLOC: kalloc returned NULL (potential leak), size %llu", (uint64_t) size);
600 }
1c79356b 601 }
39037602 602 if (!addr)
1c79356b
A		 603 return (0);
604
55e303ae 605 if (flags & M_ZERO)
39037602 606 bzero(addr, size);
55e303ae 607
39037602 608 return (addr);
1c79356b
A		 609}
610
91447636
A		 611void
612_FREE(
1c79356b
A		 613 void *addr,
614 int type)
615{
1c79356b
A		 616 if (type >= M_LAST)
617 panic("_free TYPE");
618
9bccf70c
A		 619 if (!addr)
620 return; /* correct (convenient bsd kernel legacy) */
1c79356b 621
39037602 622 kfree_addr(addr);
1c79356b
A		 623}
624
6d2010ae 625void *
3e170ce0 626__REALLOC(
6d2010ae
A		 627 void *addr,
628 size_t size,
629 int type,
3e170ce0
A		 630 int flags,
631 vm_allocation_site_t *site)
6d2010ae 632{
6d2010ae
A		 633 void *newaddr;
634 size_t alloc;
635
636 /* realloc(NULL, ...) is equivalent to malloc(...) */
637 if (addr == NULL)
3e170ce0 638 return (__MALLOC(size, type, flags, site));
6d2010ae 639
39037602
A		 640 alloc = kalloc_size(addr);
641 /*
642 * Find out the size of the bucket in which the new sized allocation
643 * would land. If it matches the bucket of the original allocation,
644 * simply return the address.
645 */
646 if (kalloc_bucket_size(size) == alloc)
647 return addr;
648
6d2010ae 649 /* Allocate a new, bigger (or smaller) block */
3e170ce0 650 if ((newaddr = __MALLOC(size, type, flags, site)) == NULL)
6d2010ae
A		 651 return (NULL);
652
6d2010ae
A		 653 /* Copy over original contents */
654 bcopy(addr, newaddr, MIN(size, alloc));
655 _FREE(addr, type);
656
657 return (newaddr);
658}
659
91447636 660void *
3e170ce0
A		 661_MALLOC_ZONE_external(
662 size_t size,
663 int type,
664 int flags);
665void *
666_MALLOC_ZONE_external(
1c79356b
A		 667 size_t size,
668 int type,
669 int flags)
3e170ce0
A		 670{
671 return (__MALLOC_ZONE(size, type, flags, NULL));
672}
673
674void *
675__MALLOC_ZONE(
676 size_t size,
677 int type,
678 int flags,
679 vm_allocation_site_t *site)
1c79356b
A		 680{
681 struct kmzones *kmz;
682 void *elem;
683
684 if (type >= M_LAST)
685 panic("_malloc_zone TYPE");
686
687 kmz = &kmzones[type];
688 if (kmz->kz_zalloczone == KMZ_MALLOC)
91447636 689 panic("_malloc_zone ZONE: type = %d", type);
1c79356b
A		 690
691/* XXX */
2d21ac55 692 if (kmz->kz_elemsize == (size_t)(-1))
1c79356b
A		 693 panic("_malloc_zone XXX");
694/* XXX */
695 if (size == kmz->kz_elemsize)
696 if (flags & M_NOWAIT) {
697 elem = (void *)zalloc_noblock(kmz->kz_zalloczone);
698 } else {
699 elem = (void *)zalloc(kmz->kz_zalloczone);
700 }
39037602
A		 701 else {
702 vm_size_t kalloc_size = size;
703 if (size > kalloc_size) {
704 elem = NULL;
705 } else if (flags & M_NOWAIT) {
706 elem = (void *)kalloc_canblock(&kalloc_size, FALSE, site);
1c79356b 707 } else {
39037602 708 elem = (void *)kalloc_canblock(&kalloc_size, TRUE, site);
1c79356b 709 }
39037602 710 }
1c79356b
A		 711
712 return (elem);
713}
714
91447636
A		 715void
716_FREE_ZONE(
1c79356b
A		 717 void *elem,
718 size_t size,
719 int type)
720{
721 struct kmzones *kmz;
722
723 if (type >= M_LAST)
724 panic("FREE_SIZE");
725
726 kmz = &kmzones[type];
727 if (kmz->kz_zalloczone == KMZ_MALLOC)
728 panic("free_zone ZONE");
729
730/* XXX */
2d21ac55 731 if (kmz->kz_elemsize == (size_t)(-1))
1c79356b
A		 732 panic("FREE_SIZE XXX");
733/* XXX */
734 if (size == kmz->kz_elemsize)
91447636 735 zfree(kmz->kz_zalloczone, elem);
1c79356b 736 else
91447636 737 kfree(elem, size);
1c79356b 738}
6d2010ae
A		 739
740#if CONFIG_ZLEAKS
741
742SYSCTL_DECL(_kern_zleak);
743SYSCTL_NODE(_kern, OID_AUTO, zleak, CTLFLAG_RW | CTLFLAG_LOCKED, 0, "zleak");
744
745/*
746 * kern.zleak.active
747 *
748 * Show the status of the zleak subsystem (0 = enabled, 1 = active,
749 * and -1 = failed), and if enabled, allow it to be activated immediately.
750 */
751static int
752sysctl_zleak_active SYSCTL_HANDLER_ARGS
753{
754#pragma unused(arg1, arg2)
755 int oldval, val, error;
756
757 val = oldval = get_zleak_state();
758 error = sysctl_handle_int(oidp, &val, 0, req);
759 if (error || !req->newptr)
760 return (error);
761 /*
762 * Can only be activated if it's off (and not failed.)
763 * Cannot be deactivated once it's on.
764 */
765 if (val == 1 && oldval == 0) {
766 kern_return_t kr = zleak_activate();
767
768 if (KERN_SUCCESS != kr)
769 printf("zleak_active: failed to activate "
770 "live zone leak debugging (%d).\n", kr);
771 } if (val == 0 && oldval == 1) {
772 printf("zleak_active: active, cannot be disabled.\n");
773 return (EINVAL);
774 }
775 return (0);
776}
777
778SYSCTL_PROC(_kern_zleak, OID_AUTO, active,
779 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
780 0, 0, sysctl_zleak_active, "I", "zleak activity");
781
782/*
783 * kern.zleak.max_zonemap_size
784 *
785 * Read the value of the maximum zonemap size in bytes; useful
786 * as the maximum size that zleak.global_threshold and
787 * zleak.zone_threshold should be set to.
788 */
789static int
790sysctl_zleak_max_zonemap_size SYSCTL_HANDLER_ARGS
791{
792 uint64_t zmap_max_size = *(vm_size_t *)arg1;
793
794 return sysctl_handle_quad(oidp, &zmap_max_size, arg2, req);
795}
796
797SYSCTL_PROC(_kern_zleak, OID_AUTO, max_zonemap_size,
798 CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
799 &zleak_max_zonemap_size, 0,
800 sysctl_zleak_max_zonemap_size, "Q", "zleak max zonemap size");
801
802
803static int
804sysctl_zleak_threshold SYSCTL_HANDLER_ARGS
805{
806#pragma unused(oidp, arg2)
807 int error;
808 uint64_t value = *(vm_size_t *)arg1;
809
810 error = sysctl_io_number(req, value, sizeof (value), &value, NULL);
811
812 if (error || !req->newptr)
813 return (error);
814
815 if (value > (uint64_t)zleak_max_zonemap_size)
816 return (ERANGE);
817
818 *(vm_size_t *)arg1 = value;
819 return (0);
820}
821
822/*
823 * kern.zleak.global_threshold
824 *
825 * Set the global zleak threshold size (in bytes). If the zone map
826 * grows larger than this value, zleaks are automatically activated.
827 *
828 * The default value is set in zleak_init().
829 */
830SYSCTL_PROC(_kern_zleak, OID_AUTO, global_threshold,
831 CTLTYPE_QUAD | CTLFLAG_RW | CTLFLAG_LOCKED,
832 &zleak_global_tracking_threshold, 0,
833 sysctl_zleak_threshold, "Q", "zleak global threshold");
834
835/*
836 * kern.zleak.zone_threshold
837 *
838 * Set the per-zone threshold size (in bytes) above which any
839 * zone will automatically start zleak tracking.
840 *
841 * The default value is set in zleak_init().
842 *
843 * Setting this variable will have no effect until zleak tracking is
844 * activated (See above.)
845 */
846SYSCTL_PROC(_kern_zleak, OID_AUTO, zone_threshold,
847 CTLTYPE_QUAD | CTLFLAG_RW | CTLFLAG_LOCKED,
848 &zleak_per_zone_tracking_threshold, 0,
849 sysctl_zleak_threshold, "Q", "zleak per-zone threshold");
850
851#endif /* CONFIG_ZLEAKS */
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