1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 #pragma ident "%Z%%M% %I% %E% SMI"
28
29 #include <sys/kmem.h>
30 #include <sys/errno.h>
31 #include <sys/thread.h>
32 #include <sys/systm.h>
33 #include <sys/syscall.h>
34 #include <sys/proc.h>
35 #include <sys/modctl.h>
36 #include <sys/cmn_err.h>
37 #include <sys/model.h>
38 #include <sys/brand.h>
39 #include <sys/machbrand.h>
40 #include <sys/lx_syscalls.h>
41 #include <sys/lx_brand.h>
42 #include <sys/lx_impl.h>
43
44 /*
45 * Some system calls return either a 32-bit or a 64-bit value, depending
46 * on the datamodel.
47 */
48 #ifdef _LP64
49 #define V_RVAL SE_64RVAL
50 #else
51 #define V_RVAL SE_32RVAL1
52 #endif
53
54 /*
55 * Define system calls that return a native 'long' quantity i.e. a 32-bit
56 * or 64-bit integer - depending on how the kernel is itself compiled
57 * e.g. read(2) returns 'ssize_t' in the kernel and in userland.
58 */
59 #define LX_CL(name, call, narg) \
60 { V_RVAL, (name), (llfcn_t)(call), (narg) }
61
62 /*
63 * Returns a 32 bit quantity regardless of datamodel
64 */
65 #define LX_CI(name, call, narg) \
66 { SE_32RVAL1, (name), (llfcn_t)(call), (narg) }
67
68 extern longlong_t lx_nosys(void);
69 #define LX_NOSYS(name) \
70 {SE_64RVAL, (name), (llfcn_t)lx_nosys, 0}
71
72 lx_sysent_t lx_sysent[] =
73 {
74 LX_NOSYS("lx_nosys"), /* 0 */
75 LX_NOSYS("exit"), /* 0 */
76 LX_NOSYS("lx_fork"),
77 LX_NOSYS("read"),
78 LX_NOSYS("write"),
79 LX_NOSYS("open"),
80 LX_NOSYS("close"),
81 LX_NOSYS("waitpid"),
82 LX_NOSYS("creat"),
83 LX_NOSYS("link"),
84 LX_NOSYS("unlink"), /* 10 */
85 LX_NOSYS("exec"),
86 LX_NOSYS("chdir"),
87 LX_NOSYS("gtime"),
88 LX_NOSYS("mknod"),
89 LX_NOSYS("chmod"),
90 LX_NOSYS("lchown16"),
91 LX_NOSYS("break"),
92 LX_NOSYS("stat"),
93 LX_NOSYS("lseek"),
94 LX_CL("getpid", lx_getpid, 0), /* 20 */
95 LX_NOSYS("mount"),
96 LX_NOSYS("umount"),
97 LX_NOSYS("setuid16"),
98 LX_NOSYS("getuid16"),
99 LX_NOSYS("stime"),
100 LX_NOSYS("ptrace"),
101 LX_NOSYS("alarm"),
102 LX_NOSYS("fstat"),
103 LX_NOSYS("pause"),
104 LX_NOSYS("utime"), /* 30 */
105 LX_NOSYS("stty"),
106 LX_NOSYS("gtty"),
107 LX_NOSYS("access"),
108 LX_NOSYS("nice"),
109 LX_NOSYS("ftime"),
110 LX_NOSYS("sync"),
111 LX_CL("kill", lx_kill, 2),
112 LX_NOSYS("rename"),
113 LX_NOSYS("mkdir"),
114 LX_NOSYS("rmdir"), /* 40 */
115 LX_NOSYS("dup"),
116 LX_NOSYS("pipe"),
117 LX_NOSYS("times"),
118 LX_NOSYS("prof"),
119 LX_CL("brk", lx_brk, 1),
120 LX_NOSYS("setgid16"),
121 LX_NOSYS("getgid16"),
122 LX_NOSYS("signal"),
123 LX_NOSYS("geteuid16"),
124 LX_NOSYS("getegid16"), /* 50 */
125 LX_NOSYS("sysacct"),
126 LX_NOSYS("umount2"),
127 LX_NOSYS("lock"),
128 LX_NOSYS("ioctl"),
129 LX_NOSYS("fcntl"),
130 LX_NOSYS("mpx"),
131 LX_NOSYS("setpgid"),
132 LX_NOSYS("ulimit"),
133 LX_NOSYS("olduname"),
134 LX_NOSYS("umask"), /* 60 */
135 LX_NOSYS("chroot"),
136 LX_NOSYS("ustat"),
137 LX_NOSYS("dup2"),
138 LX_CL("getppid", lx_getppid, 0),
139 LX_NOSYS("pgrp"),
140 LX_NOSYS("setsid"),
141 LX_NOSYS("sigaction"),
142 LX_NOSYS("sgetmask"),
143 LX_NOSYS("ssetmask"),
144 LX_NOSYS("setreuid16"), /* 70 */
145 LX_NOSYS("setregid16"),
146 LX_NOSYS("sigsuspend"),
147 LX_NOSYS("sigpending"),
148 LX_NOSYS("sethostname"),
149 LX_NOSYS("setrlimit"),
150 LX_NOSYS("old_getrlimit"),
151 LX_NOSYS("getrusage"),
152 LX_NOSYS("gettimeofday"),
153 LX_NOSYS("settimeofday"),
154 LX_NOSYS("getgroups16"), /* 80 */
155 LX_NOSYS("setgroups16"),
156 LX_NOSYS("old_select"),
157 LX_NOSYS("symlink"),
158 LX_NOSYS("oldlstat"),
159 LX_NOSYS("readlink"),
160 LX_NOSYS("uselib"),
161 LX_NOSYS("swapon"),
162 LX_NOSYS("reboot"),
163 LX_NOSYS("old_readdir"),
164 LX_NOSYS("old_mmap"), /* 90 */
165 LX_NOSYS("munmap"),
166 LX_NOSYS("truncate"),
167 LX_NOSYS("ftruncate"),
168 LX_NOSYS("fchmod"),
169 LX_NOSYS("fchown16"),
170 LX_NOSYS("getpriority"),
171 LX_NOSYS("setpriority"),
172 LX_NOSYS("profil"),
173 LX_NOSYS("statfs"),
174 LX_NOSYS("fstatfs"), /* 100 */
175 LX_NOSYS("ioperm"),
176 LX_NOSYS("socketcall"),
177 LX_NOSYS("syslog"),
178 LX_NOSYS("setitimer"),
179 LX_NOSYS("getitimer"),
180 LX_NOSYS("newstat"),
181 LX_NOSYS("newsltat"),
182 LX_NOSYS("newsftat"),
183 LX_NOSYS("uname"),
184 LX_NOSYS("oldiopl"), /* 110 */
185 LX_NOSYS("oldvhangup"),
186 LX_NOSYS("idle"),
187 LX_NOSYS("vm86old"),
188 LX_NOSYS("wait4"),
189 LX_NOSYS("swapoff"),
190 LX_CL("sysinfo", lx_sysinfo, 1),
191 LX_NOSYS("ipc"),
192 LX_NOSYS("fsync"),
193 LX_NOSYS("sigreturn"),
194 LX_CL("clone", lx_clone, 5), /* 120 */
195 LX_NOSYS("setdomainname"),
196 LX_NOSYS("newuname"),
197 LX_CL("modify_ldt", lx_modify_ldt, 3),
198 LX_NOSYS("adjtimex"),
199 LX_NOSYS("mprotect"),
200 LX_NOSYS("sigprocmask"),
201 LX_NOSYS("create_module"),
202 LX_NOSYS("init_module"),
203 LX_NOSYS("delete_module"),
204 LX_NOSYS("get_kernel_syms"), /* 130 */
205 LX_NOSYS("quotactl"),
206 LX_NOSYS("getpgid"),
207 LX_NOSYS("fchdir"),
208 LX_NOSYS("bdflush"),
209 LX_NOSYS("sysfs"),
210 LX_NOSYS("personality"),
211 LX_NOSYS("afs_syscall"),
212 LX_NOSYS("setfsuid16"),
213 LX_NOSYS("setfsgid16"),
214 LX_NOSYS("llseek"), /* 140 */
215 LX_NOSYS("getdents"),
216 LX_NOSYS("select"),
217 LX_NOSYS("flock"),
218 LX_NOSYS("msync"),
219 LX_NOSYS("readv"),
220 LX_NOSYS("writev"),
221 LX_NOSYS("getsid"),
222 LX_NOSYS("fdatasync"),
223 LX_NOSYS("sysctl"),
224 LX_NOSYS("mlock"), /* 150 */
225 LX_NOSYS("munlock"),
226 LX_NOSYS("mlockall"),
227 LX_NOSYS("munlockall"),
228 LX_CL("sched_setparam", lx_sched_setparam, 2),
229 LX_CL("sched_getparam", lx_sched_getparam, 2),
230 LX_NOSYS("sched_setscheduler"),
231 LX_NOSYS("sched_getscheduler"),
232 LX_NOSYS("yield"),
233 LX_NOSYS("sched_get_priority_max"),
234 LX_NOSYS("sched_get_priority_min"), /* 160 */
235 LX_CL("sched_rr_get_interval", lx_sched_rr_get_interval, 2),
236 LX_NOSYS("nanosleep"),
237 LX_NOSYS("mremap"),
238 LX_CL("setresuid16", lx_setresuid16, 3),
239 LX_NOSYS("getresuid16"),
240 LX_NOSYS("vm86"),
241 LX_NOSYS("query_module"),
242 LX_NOSYS("poll"),
243 LX_NOSYS("nfsserctl"),
244 LX_CL("setresgid16", lx_setresgid16, 3), /* 170 */
245 LX_NOSYS("getresgid16"),
246 LX_NOSYS("prctl"),
247 LX_NOSYS("rt_sigreturn"),
248 LX_NOSYS("rt_sigaction"),
249 LX_NOSYS("rt_sigprocmask"),
250 LX_NOSYS("rt_sigpending"),
251 LX_NOSYS("rt_sigtimedwait"),
252 LX_NOSYS("rt_sigqueueinfo"),
253 LX_NOSYS("rt_sigsuspend"),
254 LX_NOSYS("pread64"), /* 180 */
255 LX_NOSYS("pwrite64"),
256 LX_NOSYS("chown16"),
257 LX_NOSYS("getcwd"),
258 LX_NOSYS("capget"),
259 LX_NOSYS("capset"),
260 LX_NOSYS("sigaltstack"),
261 LX_NOSYS("sendfile"),
262 LX_NOSYS("getpmsg"),
263 LX_NOSYS("putpmsg"),
264 LX_NOSYS("vfork"), /* 190 */
265 LX_NOSYS("getrlimit"),
266 LX_NOSYS("mmap2"),
267 LX_NOSYS("truncate64"),
268 LX_NOSYS("ftruncate64"),
269 LX_NOSYS("stat64"),
270 LX_NOSYS("lstat64"),
271 LX_NOSYS("fstat64"),
272 LX_NOSYS("lchown"),
273 LX_NOSYS("getuid"),
274 LX_NOSYS("getgid"), /* 200 */
275 LX_NOSYS("geteuid"),
276 LX_NOSYS("getegid"),
277 LX_NOSYS("setreuid"),
278 LX_NOSYS("setregid"),
279 LX_NOSYS("getgroups"),
280 LX_CL("setgroups", lx_setgroups, 2),
281 LX_NOSYS("fchown"),
282 LX_CL("setresuid", lx_setresuid, 3),
283 LX_NOSYS("getresuid"),
284 LX_CL("setresgid", lx_setresgid, 3), /* 210 */
285 LX_NOSYS("getresgid"),
286 LX_NOSYS("chown"),
287 LX_NOSYS("setuid"),
288 LX_NOSYS("setgid"),
289 LX_NOSYS("setfsuid"),
290 LX_NOSYS("setfsgid"),
291 LX_NOSYS("pivot_root"),
292 LX_NOSYS("mincore"),
293 LX_NOSYS("madvise"),
294 LX_NOSYS("getdents64"), /* 220 */
295 LX_NOSYS("fcntl64"),
296 LX_NOSYS("lx_nosys"),
297 LX_NOSYS("security"),
298 LX_CL("gettid", lx_gettid, 0),
299 LX_NOSYS("readahead"),
300 LX_NOSYS("setxattr"),
301 LX_NOSYS("lsetxattr"),
302 LX_NOSYS("fsetxattr"),
303 LX_NOSYS("getxattr"),
304 LX_NOSYS("lgetxattr"), /* 230 */
305 LX_NOSYS("fgetxattr"),
306 LX_NOSYS("listxattr"),
307 LX_NOSYS("llistxattr"),
308 LX_NOSYS("flistxattr"),
309 LX_NOSYS("removexattr"),
310 LX_NOSYS("lremovexattr"),
311 LX_NOSYS("fremovexattr"),
312 LX_CL("tkill", lx_tkill, 2),
313 LX_NOSYS("sendfile64"),
314 LX_CL("futex", lx_futex, 6), /* 240 */
315 LX_NOSYS("sched_setaffinity"),
316 LX_NOSYS("sched_getaffinity"),
317 LX_CL("set_thread_area", lx_set_thread_area, 1),
318 LX_CL("get_thread_area", lx_get_thread_area, 1),
319 LX_NOSYS("io_setup"),
320 LX_NOSYS("io_destroy"),
321 LX_NOSYS("io_getevents"),
322 LX_NOSYS("io_submit"),
323 LX_NOSYS("io_cancel"),
324 LX_NOSYS("fadvise64"), /* 250 */
325 LX_NOSYS("lx_nosys"),
326 LX_NOSYS("exit_group"),
327 LX_NOSYS("lookup_dcookie"),
328 LX_NOSYS("epoll_create"),
329 LX_NOSYS("epoll_ctl"),
330 LX_NOSYS("epoll_wait"),
331 LX_NOSYS("remap_file_pages"),
332 LX_CL("set_tid_address", lx_set_tid_address, 1),
333 LX_NOSYS("timer_create"),
334 LX_NOSYS("timer_settime"), /* 260 */
335 LX_NOSYS("timer_gettime"),
336 LX_NOSYS("timer_getoverrun"),
337 LX_NOSYS("timer_delete"),
338 LX_NOSYS("clock_settime"),
339 LX_NOSYS("clock_gettime"),
340 LX_NOSYS("clock_getres"),
341 LX_NOSYS("clock_nanosleep"),
342 LX_NOSYS("statfs64"),
343 LX_NOSYS("fstatfs64"),
344 LX_NOSYS("tgkill"), /* 270 */
345 /* The following are Linux 2.6 system calls */
346 LX_NOSYS("utimes"),
347 LX_NOSYS("fadvise64_64"),
348 LX_NOSYS("vserver"),
349 LX_NOSYS("mbind"),
350 LX_NOSYS("get_mempolicy"),
351 LX_NOSYS("set_mempolicy"),
352 LX_NOSYS("mq_open"),
353 LX_NOSYS("mq_unlink"),
354 LX_NOSYS("mq_timedsend"),
355 LX_NOSYS("mq_timedreceive"), /* 280 */
356 LX_NOSYS("mq_notify"),
357 LX_NOSYS("mq_getsetattr"),
358 LX_NOSYS("kexec_load"),
359 LX_NOSYS("waitid"),
360 LX_NOSYS("sys_setaltroot"),
361 LX_NOSYS("add_key"),
362 LX_NOSYS("request_key"),
363 LX_NOSYS("keyctl"),
364 LX_NOSYS("ioprio_set"),
365 LX_NOSYS("ioprio_get"), /* 290 */
366 LX_NOSYS("inotify_init"),
367 LX_NOSYS("inotify_add_watch"),
368 LX_NOSYS("inotify_rm_watch"),
369 LX_NOSYS("migrate_pages"),
370 LX_NOSYS("openat"),
371 LX_NOSYS("mkdirat"),
372 LX_NOSYS("mknodat"),
373 LX_NOSYS("fchownat"),
374 LX_NOSYS("futimesat"),
375 LX_NOSYS("fstatat64"), /* 300 */
376 LX_NOSYS("unlinkat"),
377 LX_NOSYS("renameat"),
378 LX_NOSYS("linkat"),
379 LX_NOSYS("syslinkat"),
380 LX_NOSYS("readlinkat"),
381 LX_NOSYS("fchmodat"),
382 LX_NOSYS("faccessat"),
383 LX_NOSYS("pselect6"),
384 LX_NOSYS("ppoll"),
385 LX_NOSYS("unshare"), /* 310 */
386 LX_NOSYS("set_robust_list"),
387 LX_NOSYS("get_robust_list"),
388 LX_NOSYS("splice"),
389 LX_NOSYS("sync_file_range"),
390 LX_NOSYS("tee"),
391 LX_NOSYS("vmsplice"),
392 LX_NOSYS("move_pages"),
393 NULL /* NULL-termination is required for lx_systrace */
394 };
395
396 int64_t
397 lx_emulate_syscall(int num, uintptr_t arg1, uintptr_t arg2,
398 uintptr_t arg3, uintptr_t arg4, uintptr_t arg5, uintptr_t arg6)
399 {
400 struct lx_sysent *jsp;
401 int64_t rval;
402
403 rval = (int64_t)0;
404
405 jsp = &(lx_sysent[num]);
406
407 switch (jsp->sy_narg) {
408 case 0: {
409 lx_print("--> %s()\n", jsp->sy_name);
410 rval = (int64_t)jsp->sy_callc();
411 break;
412 }
413 case 1: {
414 lx_print("--> %s(0x%lx)\n", jsp->sy_name, arg1);
415 rval = (int64_t)jsp->sy_callc(arg1);
416 break;
417 }
418 case 2: {
419 lx_print("--> %s(0x%lx, 0x%lx)\n", jsp->sy_name, arg1, arg2);
420 rval = (int64_t)jsp->sy_callc(arg1, arg2);
421 break;
422 }
423 case 3: {
424 lx_print("--> %s(0x%lx, 0x%lx, 0x%lx)\n",
425 jsp->sy_name, arg1, arg2, arg3);
426 rval = (int64_t)jsp->sy_callc(arg1, arg2, arg3);
427 break;
428 }
429 case 4: {
430 lx_print("--> %s(0x%lx, 0x%lx, 0x%lx, 0x%lx)\n",
431 jsp->sy_name, arg1, arg2, arg3, arg4);
432 rval = (int64_t)jsp->sy_callc(arg1, arg2, arg3, arg4);
433 break;
434 }
435 case 5: {
436 lx_print("--> %s(0x%lx, 0x%lx, 0x%lx, 0x%lx, 0x%lx)\n",
437 jsp->sy_name, arg1, arg2, arg3, arg4, arg5);
438 rval = (int64_t)jsp->sy_callc(arg1, arg2, arg3, arg4, arg5);
439 break;
440 }
441 case 6: {
442 lx_print("--> %s(0x%lx, 0x%lx, 0x%lx, 0x%lx,"
443 " 0x%lx, 0x%lx)\n",
444 jsp->sy_name, arg1, arg2, arg3, arg4, arg5, arg6);
445 rval = (int64_t)jsp->sy_callc(arg1, arg2, arg3, arg4, arg5,
446 arg6);
447 break;
448 }
449 default:
450 panic("Invalid syscall entry: #%d at 0x%p\n", num, (void *)jsp);
451 }
452 lx_print("----------> return (0x%llx)\n", (long long)rval);
453 return (rval);
454 }