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uts: Allow for address space randomisation.
Randomise the base addresses of shared objects, non-fixed mappings, the
stack and the heap. Introduce a service, svc:/system/process-security,
and a tool psecflags(1) to control and observe it
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--- old/usr/src/cmd/sgs/elfdump/common/struct_layout_i386.c
+++ new/usr/src/cmd/sgs/elfdump/common/struct_layout_i386.c
1 1 /*
2 2 * CDDL HEADER START
3 3 *
4 4 * The contents of this file are subject to the terms of the
5 5 * Common Development and Distribution License (the "License").
6 6 * You may not use this file except in compliance with the License.
7 7 *
8 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 9 * or http://www.opensolaris.org/os/licensing.
10 10 * See the License for the specific language governing permissions
11 11 * and limitations under the License.
12 12 *
13 13 * When distributing Covered Code, include this CDDL HEADER in each
14 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 15 * If applicable, add the following below this CDDL HEADER, with the
16 16 * fields enclosed by brackets "[]" replaced with your own identifying
17 17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 18 *
19 19 * CDDL HEADER END
20 20 */
21 21
22 22 /*
23 23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
24 24 * Use is subject to license terms.
25 25 */
26 26 /*
27 27 * Copyright 2012 DEY Storage Systems, Inc. All rights reserved.
28 28 */
29 29
30 30 #include <struct_layout.h>
31 31
32 32
33 33 static const sl_auxv_layout_t auxv_layout = {
34 34 { 0, 8, 0, 0 }, /* sizeof (auxv_t) */
35 35 { 0, 4, 0, 1 }, /* a_type */
36 36 { 4, 4, 0, 1 }, /* a_un.a_val */
37 37 { 4, 4, 0, 0 }, /* a_un.a_ptr */
38 38 { 4, 4, 0, 0 }, /* a_un.a_fcn */
39 39 };
40 40
41 41
42 42 static const sl_prgregset_layout_t prgregset_layout = {
43 43 { 0, 76, 0, 0 }, /* sizeof (prgregset_t) */
44 44 { 0, 4, 19, 0 }, /* elt0 */
45 45 };
46 46
47 47
48 48 static const sl_lwpstatus_layout_t lwpstatus_layout = {
49 49 { 0, 800, 0, 0 }, /* sizeof (lwpstatus_t) */
50 50 { 0, 4, 0, 0 }, /* pr_flags */
51 51 { 4, 4, 0, 0 }, /* pr_lwpid */
52 52 { 8, 2, 0, 0 }, /* pr_why */
53 53 { 10, 2, 0, 0 }, /* pr_what */
54 54 { 12, 2, 0, 0 }, /* pr_cursig */
55 55 { 16, 128, 0, 0 }, /* pr_info */
56 56 { 144, 16, 0, 0 }, /* pr_lwppend */
57 57 { 160, 16, 0, 0 }, /* pr_lwphold */
58 58 { 176, 32, 0, 0 }, /* pr_action */
59 59 { 208, 12, 0, 0 }, /* pr_altstack */
60 60 { 220, 4, 0, 0 }, /* pr_oldcontext */
61 61 { 224, 2, 0, 0 }, /* pr_syscall */
62 62 { 226, 2, 0, 0 }, /* pr_nsysarg */
63 63 { 228, 4, 0, 0 }, /* pr_errno */
64 64 { 232, 4, 8, 0 }, /* pr_sysarg[] */
65 65 { 264, 4, 0, 0 }, /* pr_rval1 */
66 66 { 268, 4, 0, 0 }, /* pr_rval2 */
67 67 { 272, 1, 8, 0 }, /* pr_clname[] */
68 68 { 280, 8, 0, 0 }, /* pr_tstamp */
69 69 { 288, 8, 0, 0 }, /* pr_utime */
70 70 { 296, 8, 0, 0 }, /* pr_stime */
71 71 { 332, 4, 0, 0 }, /* pr_errpriv */
72 72 { 336, 4, 0, 0 }, /* pr_ustack */
73 73 { 340, 4, 0, 0 }, /* pr_instr */
74 74 { 344, 76, 0, 0 }, /* pr_reg */
75 75 { 420, 380, 0, 0 }, /* pr_fpreg */
76 76 };
77 77
78 78
79 79 static const sl_pstatus_layout_t pstatus_layout = {
80 80 { 0, 1136, 0, 0 }, /* sizeof (pstatus_t) */
81 81 { 0, 4, 0, 1 }, /* pr_flags */
82 82 { 4, 4, 0, 1 }, /* pr_nlwp */
83 83 { 8, 4, 0, 0 }, /* pr_pid */
84 84 { 12, 4, 0, 0 }, /* pr_ppid */
85 85 { 16, 4, 0, 0 }, /* pr_pgid */
86 86 { 20, 4, 0, 0 }, /* pr_sid */
87 87 { 24, 4, 0, 1 }, /* pr_aslwpid */
88 88 { 28, 4, 0, 1 }, /* pr_agentid */
89 89 { 32, 16, 0, 0 }, /* pr_sigpend */
90 90 { 48, 4, 0, 0 }, /* pr_brkbase */
91 91 { 52, 4, 0, 0 }, /* pr_brksize */
92 92 { 56, 4, 0, 0 }, /* pr_stkbase */
93 93 { 60, 4, 0, 0 }, /* pr_stksize */
94 94 { 64, 8, 0, 0 }, /* pr_utime */
95 95 { 72, 8, 0, 0 }, /* pr_stime */
96 96 { 80, 8, 0, 0 }, /* pr_cutime */
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97 97 { 88, 8, 0, 0 }, /* pr_cstime */
98 98 { 96, 16, 0, 0 }, /* pr_sigtrace */
99 99 { 112, 16, 0, 0 }, /* pr_flttrace */
100 100 { 128, 64, 0, 0 }, /* pr_sysentry */
101 101 { 192, 64, 0, 0 }, /* pr_sysexit */
102 102 { 256, 1, 0, 0 }, /* pr_dmodel */
103 103 { 260, 4, 0, 1 }, /* pr_taskid */
104 104 { 264, 4, 0, 1 }, /* pr_projid */
105 105 { 268, 4, 0, 1 }, /* pr_nzomb */
106 106 { 272, 4, 0, 1 }, /* pr_zoneid */
107 + { 276, 8, 0, 0 }, /* pr_secflags */
107 108 { 336, 800, 0, 0 }, /* pr_lwp */
108 109 };
109 110
110 111
111 112 static const sl_prstatus_layout_t prstatus_layout = {
112 113 { 0, 432, 0, 0 }, /* sizeof (prstatus_t) */
113 114 { 0, 4, 0, 1 }, /* pr_flags */
114 115 { 4, 2, 0, 1 }, /* pr_why */
115 116 { 6, 2, 0, 1 }, /* pr_what */
116 117 { 8, 128, 0, 0 }, /* pr_info */
117 118 { 136, 2, 0, 1 }, /* pr_cursig */
118 119 { 138, 2, 0, 0 }, /* pr_nlwp */
119 120 { 140, 16, 0, 0 }, /* pr_sigpend */
120 121 { 156, 16, 0, 0 }, /* pr_sighold */
121 122 { 172, 12, 0, 0 }, /* pr_altstack */
122 123 { 184, 32, 0, 0 }, /* pr_action */
123 124 { 216, 4, 0, 0 }, /* pr_pid */
124 125 { 220, 4, 0, 0 }, /* pr_ppid */
125 126 { 224, 4, 0, 0 }, /* pr_pgrp */
126 127 { 228, 4, 0, 0 }, /* pr_sid */
127 128 { 232, 8, 0, 0 }, /* pr_utime */
128 129 { 240, 8, 0, 0 }, /* pr_stime */
129 130 { 248, 8, 0, 0 }, /* pr_cutime */
130 131 { 256, 8, 0, 0 }, /* pr_cstime */
131 132 { 264, 1, 8, 0 }, /* pr_clname[] */
132 133 { 272, 2, 0, 1 }, /* pr_syscall */
133 134 { 274, 2, 0, 1 }, /* pr_nsysarg */
134 135 { 276, 4, 8, 1 }, /* pr_sysarg[] */
135 136 { 308, 4, 0, 0 }, /* pr_who */
136 137 { 312, 16, 0, 0 }, /* pr_lwppend */
137 138 { 328, 4, 0, 0 }, /* pr_oldcontext */
138 139 { 332, 4, 0, 0 }, /* pr_brkbase */
139 140 { 336, 4, 0, 0 }, /* pr_brksize */
140 141 { 340, 4, 0, 0 }, /* pr_stkbase */
141 142 { 344, 4, 0, 0 }, /* pr_stksize */
142 143 { 348, 2, 0, 1 }, /* pr_processor */
143 144 { 350, 2, 0, 1 }, /* pr_bind */
144 145 { 352, 4, 0, 1 }, /* pr_instr */
145 146 { 356, 76, 0, 0 }, /* pr_reg */
146 147 };
147 148
148 149
149 150 static const sl_psinfo_layout_t psinfo_layout = {
150 151 { 0, 336, 0, 0 }, /* sizeof (psinfo_t) */
151 152 { 0, 4, 0, 1 }, /* pr_flag */
152 153 { 4, 4, 0, 1 }, /* pr_nlwp */
153 154 { 8, 4, 0, 0 }, /* pr_pid */
154 155 { 12, 4, 0, 0 }, /* pr_ppid */
155 156 { 16, 4, 0, 0 }, /* pr_pgid */
156 157 { 20, 4, 0, 0 }, /* pr_sid */
157 158 { 24, 4, 0, 0 }, /* pr_uid */
158 159 { 28, 4, 0, 0 }, /* pr_euid */
159 160 { 32, 4, 0, 0 }, /* pr_gid */
160 161 { 36, 4, 0, 0 }, /* pr_egid */
161 162 { 40, 4, 0, 0 }, /* pr_addr */
162 163 { 44, 4, 0, 0 }, /* pr_size */
163 164 { 48, 4, 0, 0 }, /* pr_rssize */
164 165 { 56, 4, 0, 0 }, /* pr_ttydev */
165 166 { 60, 2, 0, 0 }, /* pr_pctcpu */
166 167 { 62, 2, 0, 0 }, /* pr_pctmem */
167 168 { 64, 8, 0, 0 }, /* pr_start */
168 169 { 72, 8, 0, 0 }, /* pr_time */
169 170 { 80, 8, 0, 0 }, /* pr_ctime */
170 171 { 88, 1, 16, 0 }, /* pr_fname[] */
171 172 { 104, 1, 80, 0 }, /* pr_psargs[] */
172 173 { 184, 4, 0, 1 }, /* pr_wstat */
173 174 { 188, 4, 0, 1 }, /* pr_argc */
174 175 { 192, 4, 0, 0 }, /* pr_argv */
175 176 { 196, 4, 0, 0 }, /* pr_envp */
176 177 { 200, 1, 0, 0 }, /* pr_dmodel */
177 178 { 204, 4, 0, 0 }, /* pr_taskid */
178 179 { 208, 4, 0, 0 }, /* pr_projid */
179 180 { 212, 4, 0, 1 }, /* pr_nzomb */
180 181 { 216, 4, 0, 0 }, /* pr_poolid */
181 182 { 220, 4, 0, 0 }, /* pr_zoneid */
182 183 { 224, 4, 0, 0 }, /* pr_contract */
183 184 { 232, 104, 0, 0 }, /* pr_lwp */
184 185 };
185 186
186 187
187 188 static const sl_prpsinfo_layout_t prpsinfo_layout = {
188 189 { 0, 260, 0, 0 }, /* sizeof (prpsinfo_t) */
189 190 { 0, 1, 0, 0 }, /* pr_state */
190 191 { 1, 1, 0, 0 }, /* pr_sname */
191 192 { 2, 1, 0, 0 }, /* pr_zomb */
192 193 { 3, 1, 0, 0 }, /* pr_nice */
193 194 { 4, 4, 0, 0 }, /* pr_flag */
194 195 { 8, 4, 0, 0 }, /* pr_uid */
195 196 { 12, 4, 0, 0 }, /* pr_gid */
196 197 { 16, 4, 0, 0 }, /* pr_pid */
197 198 { 20, 4, 0, 0 }, /* pr_ppid */
198 199 { 24, 4, 0, 0 }, /* pr_pgrp */
199 200 { 28, 4, 0, 0 }, /* pr_sid */
200 201 { 32, 4, 0, 0 }, /* pr_addr */
201 202 { 36, 4, 0, 0 }, /* pr_size */
202 203 { 40, 4, 0, 0 }, /* pr_rssize */
203 204 { 44, 4, 0, 0 }, /* pr_wchan */
204 205 { 48, 8, 0, 0 }, /* pr_start */
205 206 { 56, 8, 0, 0 }, /* pr_time */
206 207 { 64, 4, 0, 1 }, /* pr_pri */
207 208 { 68, 1, 0, 0 }, /* pr_oldpri */
208 209 { 69, 1, 0, 0 }, /* pr_cpu */
209 210 { 70, 2, 0, 0 }, /* pr_ottydev */
210 211 { 72, 4, 0, 0 }, /* pr_lttydev */
211 212 { 76, 1, 8, 0 }, /* pr_clname[] */
212 213 { 84, 1, 16, 0 }, /* pr_fname[] */
213 214 { 100, 1, 80, 0 }, /* pr_psargs[] */
214 215 { 180, 2, 0, 1 }, /* pr_syscall */
215 216 { 184, 8, 0, 0 }, /* pr_ctime */
216 217 { 192, 4, 0, 0 }, /* pr_bysize */
217 218 { 196, 4, 0, 0 }, /* pr_byrssize */
218 219 { 200, 4, 0, 1 }, /* pr_argc */
219 220 { 204, 4, 0, 0 }, /* pr_argv */
220 221 { 208, 4, 0, 0 }, /* pr_envp */
221 222 { 212, 4, 0, 1 }, /* pr_wstat */
222 223 { 216, 2, 0, 0 }, /* pr_pctcpu */
223 224 { 218, 2, 0, 0 }, /* pr_pctmem */
224 225 { 220, 4, 0, 0 }, /* pr_euid */
225 226 { 224, 4, 0, 0 }, /* pr_egid */
226 227 { 228, 4, 0, 0 }, /* pr_aslwpid */
227 228 { 232, 1, 0, 0 }, /* pr_dmodel */
228 229 };
229 230
230 231
231 232 static const sl_lwpsinfo_layout_t lwpsinfo_layout = {
232 233 { 0, 104, 0, 0 }, /* sizeof (lwpsinfo_t) */
233 234 { 0, 4, 0, 1 }, /* pr_flag */
234 235 { 4, 4, 0, 0 }, /* pr_lwpid */
235 236 { 8, 4, 0, 0 }, /* pr_addr */
236 237 { 12, 4, 0, 0 }, /* pr_wchan */
237 238 { 16, 1, 0, 0 }, /* pr_stype */
238 239 { 17, 1, 0, 0 }, /* pr_state */
239 240 { 18, 1, 0, 0 }, /* pr_sname */
240 241 { 19, 1, 0, 0 }, /* pr_nice */
241 242 { 20, 2, 0, 0 }, /* pr_syscall */
242 243 { 22, 1, 0, 0 }, /* pr_oldpri */
243 244 { 23, 1, 0, 0 }, /* pr_cpu */
244 245 { 24, 4, 0, 1 }, /* pr_pri */
245 246 { 28, 2, 0, 0 }, /* pr_pctcpu */
246 247 { 32, 8, 0, 0 }, /* pr_start */
247 248 { 40, 8, 0, 0 }, /* pr_time */
248 249 { 48, 1, 8, 0 }, /* pr_clname[] */
249 250 { 56, 1, 16, 0 }, /* pr_name[] */
250 251 { 72, 4, 0, 1 }, /* pr_onpro */
251 252 { 76, 4, 0, 1 }, /* pr_bindpro */
252 253 { 80, 4, 0, 1 }, /* pr_bindpset */
253 254 { 84, 4, 0, 1 }, /* pr_lgrp */
254 255 };
255 256
256 257
257 258 static const sl_prcred_layout_t prcred_layout = {
258 259 { 0, 32, 0, 0 }, /* sizeof (prcred_t) */
259 260 { 0, 4, 0, 0 }, /* pr_euid */
260 261 { 4, 4, 0, 0 }, /* pr_ruid */
261 262 { 8, 4, 0, 0 }, /* pr_suid */
262 263 { 12, 4, 0, 0 }, /* pr_egid */
263 264 { 16, 4, 0, 0 }, /* pr_rgid */
264 265 { 20, 4, 0, 0 }, /* pr_sgid */
265 266 { 24, 4, 0, 1 }, /* pr_ngroups */
266 267 { 28, 4, 1, 0 }, /* pr_groups[] */
267 268 };
268 269
269 270
270 271 static const sl_prpriv_layout_t prpriv_layout = {
271 272 { 0, 16, 0, 0 }, /* sizeof (prpriv_t) */
272 273 { 0, 4, 0, 0 }, /* pr_nsets */
273 274 { 4, 4, 0, 0 }, /* pr_setsize */
274 275 { 8, 4, 0, 0 }, /* pr_infosize */
275 276 { 12, 4, 1, 0 }, /* pr_sets[] */
276 277 };
277 278
278 279
279 280 static const sl_priv_impl_info_layout_t priv_impl_info_layout = {
280 281 { 0, 28, 0, 0 }, /* sizeof (priv_impl_info_t) */
281 282 { 0, 4, 0, 0 }, /* priv_headersize */
282 283 { 4, 4, 0, 0 }, /* priv_flags */
283 284 { 8, 4, 0, 0 }, /* priv_nsets */
284 285 { 12, 4, 0, 0 }, /* priv_setsize */
285 286 { 16, 4, 0, 0 }, /* priv_max */
286 287 { 20, 4, 0, 0 }, /* priv_infosize */
287 288 { 24, 4, 0, 0 }, /* priv_globalinfosize */
288 289 };
289 290
290 291
291 292 static const sl_fltset_layout_t fltset_layout = {
292 293 { 0, 16, 0, 0 }, /* sizeof (fltset_t) */
293 294 { 0, 4, 4, 0 }, /* word[] */
294 295 };
295 296
296 297
297 298 static const sl_siginfo_layout_t siginfo_layout = {
298 299 { 0, 128, 0, 0 }, /* sizeof (siginfo_t) */
299 300 { 0, 4, 0, 0 }, /* si_signo */
300 301 { 8, 4, 0, 0 }, /* si_errno */
301 302 { 4, 4, 0, 1 }, /* si_code */
302 303 { 20, 4, 0, 0 }, /* si_value.sival_int */
303 304 { 20, 4, 0, 0 }, /* si_value.sival_ptr */
304 305 { 12, 4, 0, 0 }, /* si_pid */
305 306 { 16, 4, 0, 0 }, /* si_uid */
306 307 { 28, 4, 0, 0 }, /* si_ctid */
307 308 { 32, 4, 0, 0 }, /* si_zoneid */
308 309 { 12, 4, 0, 0 }, /* si_entity */
309 310 { 12, 4, 0, 0 }, /* si_addr */
310 311 { 20, 4, 0, 0 }, /* si_status */
311 312 { 16, 4, 0, 0 }, /* si_band */
312 313 };
313 314
314 315
315 316 static const sl_sigset_layout_t sigset_layout = {
316 317 { 0, 16, 0, 0 }, /* sizeof (sigset_t) */
317 318 { 0, 4, 4, 0 }, /* __sigbits[] */
318 319 };
319 320
320 321
321 322 static const sl_sigaction_layout_t sigaction_layout = {
322 323 { 0, 32, 0, 0 }, /* sizeof (struct sigaction) */
323 324 { 0, 4, 0, 0 }, /* sa_flags */
324 325 { 4, 4, 0, 0 }, /* sa_handler */
325 326 { 4, 4, 0, 0 }, /* sa_sigaction */
326 327 { 8, 16, 0, 0 }, /* sa_mask */
327 328 };
328 329
329 330
330 331 static const sl_stack_layout_t stack_layout = {
331 332 { 0, 12, 0, 0 }, /* sizeof (stack_t) */
332 333 { 0, 4, 0, 0 }, /* ss_sp */
333 334 { 4, 4, 0, 0 }, /* ss_size */
334 335 { 8, 4, 0, 0 }, /* ss_flags */
335 336 };
336 337
337 338
338 339 static const sl_sysset_layout_t sysset_layout = {
339 340 { 0, 64, 0, 0 }, /* sizeof (sysset_t) */
340 341 { 0, 4, 16, 0 }, /* word[] */
341 342 };
342 343
343 344
344 345 static const sl_timestruc_layout_t timestruc_layout = {
345 346 { 0, 8, 0, 0 }, /* sizeof (timestruc_t) */
346 347 { 0, 4, 0, 0 }, /* tv_sec */
347 348 { 4, 4, 0, 0 }, /* tv_nsec */
348 349 };
349 350
350 351
351 352 static const sl_utsname_layout_t utsname_layout = {
352 353 { 0, 1285, 0, 0 }, /* sizeof (struct utsname) */
353 354 { 0, 1, 257, 0 }, /* sysname[] */
354 355 { 257, 1, 257, 0 }, /* nodename[] */
355 356 { 514, 1, 257, 0 }, /* release[] */
356 357 { 771, 1, 257, 0 }, /* version[] */
357 358 { 1028, 1, 257, 0 }, /* machine[] */
358 359 };
359 360
360 361
361 362 static const sl_prfdinfo_layout_t prfdinfo_layout = {
362 363 { 0, 1088, 0, 0 }, /* sizeof (prfdinfo_t) */
363 364 { 0, 4, 0, 0 }, /* pr_fd */
364 365 { 4, 4, 0, 0 }, /* pr_mode */
365 366 { 8, 4, 0, 0 }, /* pr_uid */
366 367 { 12, 4, 0, 0 }, /* pr_gid */
367 368 { 16, 4, 0, 0 }, /* pr_major */
368 369 { 20, 4, 0, 0 }, /* pr_minor */
369 370 { 24, 4, 0, 0 }, /* pr_rmajor */
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370 371 { 28, 4, 0, 0 }, /* pr_rminor */
371 372 { 32, 8, 0, 0 }, /* pr_ino */
372 373 { 40, 8, 0, 0 }, /* pr_offset */
373 374 { 48, 8, 0, 0 }, /* pr_size */
374 375 { 56, 4, 0, 0 }, /* pr_fileflags */
375 376 { 60, 4, 0, 0 }, /* pr_fdflags */
376 377 { 64, 1, 1024, 0 }, /* pr_path[] */
377 378 };
378 379
379 380
381 +static const sl_psecflags_layout_t psecflags_layout = {
382 + { 0, 8, 0, 0 }, /* sizeof (psecflags_t) */
383 + { 0, 4, 0, 0 }, /* psf_effective */
384 + { 4, 4, 0, 0 }, /* psf_inherit */
385 +};
386 +
387 +
380 388
381 389
382 390 static const sl_arch_layout_t layout_i386 = {
383 391 &auxv_layout,
384 392 &fltset_layout,
385 393 &lwpsinfo_layout,
386 394 &lwpstatus_layout,
387 395 &prcred_layout,
388 396 &priv_impl_info_layout,
389 397 &prpriv_layout,
390 398 &psinfo_layout,
391 399 &pstatus_layout,
392 400 &prgregset_layout,
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393 401 &prpsinfo_layout,
394 402 &prstatus_layout,
395 403 &sigaction_layout,
396 404 &siginfo_layout,
397 405 &sigset_layout,
398 406 &stack_layout,
399 407 &sysset_layout,
400 408 ×truc_layout,
401 409 &utsname_layout,
402 410 &prfdinfo_layout,
411 + &psecflags_layout,
403 412 };
404 413
405 414
406 415 const sl_arch_layout_t *
407 416 struct_layout_i386(void)
408 417 {
409 418 return (&layout_i386);
410 419 }
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