2 * Copyright 1997 Sean Eric Fagan
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * 3. All advertising materials mentioning features or use of this software
13 * must display the following acknowledgement:
14 * This product includes software developed by Sean Eric Fagan
15 * 4. Neither the name of the author may be used to endorse or promote
16 * products derived from this software without specific prior written
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 static const char rcsid[] =
38 * This file has routines used to print out system calls and their
42 #include <sys/types.h>
44 #include <sys/ptrace.h>
45 #include <sys/socket.h>
49 #include <netinet/in.h>
50 #include <arpa/inet.h>
51 #include <sys/ioccom.h>
52 #include <machine/atomic.h>
55 #include <sys/event.h>
57 #include <sys/resource.h>
76 /* 64-bit alignment on 32-bit platforms. */
83 /* Number of slots needed for a 64-bit argument. */
91 * This should probably be in its own file, sorted alphabetically.
93 struct syscall syscalls[] = {
94 { .name = "fcntl", .ret_type = 1, .nargs = 3,
95 .args = { { Int, 0 } , { Fcntl, 1 }, { Fcntlflag | OUT, 2 } } },
96 { .name = "fork", .ret_type = 1, .nargs = 0 },
97 { .name = "vfork", .ret_type = 1, .nargs = 0 },
98 { .name = "rfork", .ret_type = 1, .nargs = 1,
99 .args = { { Rforkflags, 0 } } },
100 { .name = "getegid", .ret_type = 1, .nargs = 0 },
101 { .name = "geteuid", .ret_type = 1, .nargs = 0 },
102 { .name = "getgid", .ret_type = 1, .nargs = 0 },
103 { .name = "getpid", .ret_type = 1, .nargs = 0 },
104 { .name = "getpgid", .ret_type = 1, .nargs = 1,
105 .args = { { Int, 0 } } },
106 { .name = "getpgrp", .ret_type = 1, .nargs = 0 },
107 { .name = "getppid", .ret_type = 1, .nargs = 0 },
108 { .name = "getsid", .ret_type = 1, .nargs = 1,
109 .args = { { Int, 0 } } },
110 { .name = "getuid", .ret_type = 1, .nargs = 0 },
111 { .name = "readlink", .ret_type = 1, .nargs = 3,
112 .args = { { Name, 0 } , { Readlinkres | OUT, 1 }, { Int, 2 } } },
113 { .name = "lseek", .ret_type = 2, .nargs = 3,
114 .args = { { Int, 0 }, { Quad, 1 + QUAD_ALIGN }, { Whence, 1 + QUAD_SLOTS + QUAD_ALIGN } } },
115 { .name = "linux_lseek", .ret_type = 2, .nargs = 3,
116 .args = { { Int, 0 }, { Int, 1 }, { Whence, 2 } } },
117 { .name = "mmap", .ret_type = 2, .nargs = 6,
118 .args = { { Ptr, 0 }, { Int, 1 }, { Mprot, 2 }, { Mmapflags, 3 }, { Int, 4 }, { Quad, 5 + QUAD_ALIGN } } },
119 { .name = "mprotect", .ret_type = 1, .nargs = 3,
120 .args = { { Ptr, 0 }, { Int, 1 }, { Mprot, 2 } } },
121 { .name = "open", .ret_type = 1, .nargs = 3,
122 .args = { { Name | IN, 0 } , { Open, 1 }, { Octal, 2 } } },
123 { .name = "mkdir", .ret_type = 1, .nargs = 2,
124 .args = { { Name, 0 } , { Octal, 1 } } },
125 { .name = "linux_open", .ret_type = 1, .nargs = 3,
126 .args = { { Name, 0 }, { Hex, 1 }, { Octal, 2 } } },
127 { .name = "close", .ret_type = 1, .nargs = 1,
128 .args = { { Int, 0 } } },
129 { .name = "link", .ret_type = 0, .nargs = 2,
130 .args = { { Name, 0 }, { Name, 1 } } },
131 { .name = "unlink", .ret_type = 0, .nargs = 1,
132 .args = { { Name, 0 } } },
133 { .name = "chdir", .ret_type = 0, .nargs = 1,
134 .args = { { Name, 0 } } },
135 { .name = "chroot", .ret_type = 0, .nargs = 1,
136 .args = { { Name, 0 } } },
137 { .name = "mknod", .ret_type = 0, .nargs = 3,
138 .args = { { Name, 0 }, { Octal, 1 }, { Int, 3 } } },
139 { .name = "chmod", .ret_type = 0, .nargs = 2,
140 .args = { { Name, 0 }, { Octal, 1 } } },
141 { .name = "chown", .ret_type = 0, .nargs = 3,
142 .args = { { Name, 0 }, { Int, 1 }, { Int, 2 } } },
143 { .name = "mount", .ret_type = 0, .nargs = 4,
144 .args = { { Name, 0 }, { Name, 1 }, { Int, 2 }, { Ptr, 3 } } },
145 { .name = "umount", .ret_type = 0, .nargs = 2,
146 .args = { { Name, 0 }, { Int, 2 } } },
147 { .name = "fstat", .ret_type = 1, .nargs = 2,
148 .args = { { Int, 0 }, { Stat | OUT , 1 } } },
149 { .name = "stat", .ret_type = 1, .nargs = 2,
150 .args = { { Name | IN, 0 }, { Stat | OUT, 1 } } },
151 { .name = "lstat", .ret_type = 1, .nargs = 2,
152 .args = { { Name | IN, 0 }, { Stat | OUT, 1 } } },
153 { .name = "linux_newstat", .ret_type = 1, .nargs = 2,
154 .args = { { Name | IN, 0 }, { Ptr | OUT, 1 } } },
155 { .name = "linux_newfstat", .ret_type = 1, .nargs = 2,
156 .args = { { Int, 0 }, { Ptr | OUT, 1 } } },
157 { .name = "write", .ret_type = 1, .nargs = 3,
158 .args = { { Int, 0 }, { BinString | IN, 1 }, { Int, 2 } } },
159 { .name = "ioctl", .ret_type = 1, .nargs = 3,
160 .args = { { Int, 0 }, { Ioctl, 1 }, { Hex, 2 } } },
161 { .name = "break", .ret_type = 1, .nargs = 1,
162 .args = { { Ptr, 0 } } },
163 { .name = "exit", .ret_type = 0, .nargs = 1,
164 .args = { { Hex, 0 } } },
165 { .name = "access", .ret_type = 1, .nargs = 2,
166 .args = { { Name | IN, 0 }, { Int, 1 } } },
167 { .name = "sigaction", .ret_type = 1, .nargs = 3,
168 .args = { { Signal, 0 }, { Sigaction | IN, 1 }, { Sigaction | OUT, 2 } } },
169 { .name = "accept", .ret_type = 1, .nargs = 3,
170 .args = { { Int, 0 }, { Sockaddr | OUT, 1 }, { Ptr | OUT, 2 } } },
171 { .name = "bind", .ret_type = 1, .nargs = 3,
172 .args = { { Int, 0 }, { Sockaddr | IN, 1 }, { Int, 2 } } },
173 { .name = "connect", .ret_type = 1, .nargs = 3,
174 .args = { { Int, 0 }, { Sockaddr | IN, 1 }, { Int, 2 } } },
175 { .name = "getpeername", .ret_type = 1, .nargs = 3,
176 .args = { { Int, 0 }, { Sockaddr | OUT, 1 }, { Ptr | OUT, 2 } } },
177 { .name = "getsockname", .ret_type = 1, .nargs = 3,
178 .args = { { Int, 0 }, { Sockaddr | OUT, 1 }, { Ptr | OUT, 2 } } },
179 { .name = "recvfrom", .ret_type = 1, .nargs = 6,
180 .args = { { Int, 0 }, { BinString | OUT, 1 }, { Int, 2 }, { Hex, 3 }, { Sockaddr | OUT, 4 }, { Ptr | OUT, 5 } } },
181 { .name = "sendto", .ret_type = 1, .nargs = 6,
182 .args = { { Int, 0 }, { BinString | IN, 1 }, { Int, 2 }, { Hex, 3 }, { Sockaddr | IN, 4 }, { Ptr | IN, 5 } } },
183 { .name = "execve", .ret_type = 1, .nargs = 3,
184 .args = { { Name | IN, 0 }, { StringArray | IN, 1 }, { StringArray | IN, 2 } } },
185 { .name = "linux_execve", .ret_type = 1, .nargs = 3,
186 .args = { { Name | IN, 0 }, { StringArray | IN, 1 }, { StringArray | IN, 2 } } },
187 { .name = "kldload", .ret_type = 0, .nargs = 1,
188 .args = { { Name | IN, 0 } } },
189 { .name = "kldunload", .ret_type = 0, .nargs = 1,
190 .args = { { Int, 0 } } },
191 { .name = "kldfind", .ret_type = 0, .nargs = 1,
192 .args = { { Name | IN, 0 } } },
193 { .name = "kldnext", .ret_type = 0, .nargs = 1,
194 .args = { { Int, 0 } } },
195 { .name = "kldstat", .ret_type = 0, .nargs = 2,
196 .args = { { Int, 0 }, { Ptr, 1 } } },
197 { .name = "kldfirstmod", .ret_type = 0, .nargs = 1,
198 .args = { { Int, 0 } } },
199 { .name = "nanosleep", .ret_type = 0, .nargs = 1,
200 .args = { { Timespec, 0 } } },
201 { .name = "select", .ret_type = 1, .nargs = 5,
202 .args = { { Int, 0 }, { Fd_set, 1 }, { Fd_set, 2 }, { Fd_set, 3 }, { Timeval, 4 } } },
203 { .name = "poll", .ret_type = 1, .nargs = 3,
204 .args = { { Pollfd, 0 }, { Int, 1 }, { Int, 2 } } },
205 { .name = "gettimeofday", .ret_type = 1, .nargs = 2,
206 .args = { { Timeval | OUT, 0 }, { Ptr, 1 } } },
207 { .name = "clock_gettime", .ret_type = 1, .nargs = 2,
208 .args = { { Int, 0 }, { Timespec | OUT, 1 } } },
209 { .name = "getitimer", .ret_type = 1, .nargs = 2,
210 .args = { { Int, 0 }, { Itimerval | OUT, 2 } } },
211 { .name = "setitimer", .ret_type = 1, .nargs = 3,
212 .args = { { Int, 0 }, { Itimerval, 1 } , { Itimerval | OUT, 2 } } },
213 { .name = "kse_release", .ret_type = 0, .nargs = 1,
214 .args = { { Timespec, 0 } } },
215 { .name = "kevent", .ret_type = 0, .nargs = 6,
216 .args = { { Int, 0 }, { Kevent, 1 }, { Int, 2 }, { Kevent | OUT, 3 }, { Int, 4 }, { Timespec, 5 } } },
217 { .name = "_umtx_lock", .ret_type = 0, .nargs = 1,
218 .args = { { Umtx, 0 } } },
219 { .name = "_umtx_unlock", .ret_type = 0, .nargs = 1,
220 .args = { { Umtx, 0 } } },
221 { .name = "sigprocmask", .ret_type = 0, .nargs = 3,
222 .args = { { Sigprocmask, 0 }, { Sigset, 1 }, { Sigset | OUT, 2 } } },
223 { .name = "unmount", .ret_type = 1, .nargs = 2,
224 .args = { { Name, 0 }, { Int, 1 } } },
225 { .name = "socket", .ret_type = 1, .nargs = 3,
226 .args = { { Sockdomain, 0 }, { Socktype, 1 }, { Int, 2 } } },
227 { .name = "getrusage", .ret_type = 1, .nargs = 2,
228 .args = { { Int, 0 }, { Rusage | OUT, 1 } } },
229 { .name = "__getcwd", .ret_type = 1, .nargs = 2,
230 .args = { { Name | OUT, 0 }, { Int, 1 } } },
231 { .name = "shutdown", .ret_type = 1, .nargs = 2,
232 .args = { { Int, 0 }, { Shutdown, 1 } } },
233 { .name = "getrlimit", .ret_type = 1, .nargs = 2,
234 .args = { { Resource, 0 }, { Rlimit | OUT, 1 } } },
235 { .name = "setrlimit", .ret_type = 1, .nargs = 2,
236 .args = { { Resource, 0 }, { Rlimit | IN, 1 } } },
237 { .name = "utimes", .ret_type = 1, .nargs = 2,
238 .args = { { Name | IN, 0 }, { Timeval2 | IN, 1 } } },
239 { .name = "lutimes", .ret_type = 1, .nargs = 2,
240 .args = { { Name | IN, 0 }, { Timeval2 | IN, 1 } } },
241 { .name = "futimes", .ret_type = 1, .nargs = 2,
242 .args = { { Int, 0 }, { Timeval | IN, 1 } } },
243 { .name = "chflags", .ret_type = 1, .nargs = 2,
244 .args = { { Name | IN, 0 }, { Hex, 1 } } },
245 { .name = "lchflags", .ret_type = 1, .nargs = 2,
246 .args = { { Name | IN, 0 }, { Hex, 1 } } },
247 { .name = "pathconf", .ret_type = 1, .nargs = 2,
248 .args = { { Name | IN, 0 }, { Pathconf, 1 } } },
249 { .name = "pipe", .ret_type = 1, .nargs = 1,
250 .args = { { Ptr, 0 } } },
251 { .name = "truncate", .ret_type = 1, .nargs = 3,
252 .args = { { Name | IN, 0 }, { Int | IN, 1 }, { Quad | IN, 2 } } },
253 { .name = "ftruncate", .ret_type = 1, .nargs = 3,
254 .args = { { Int | IN, 0 }, { Int | IN, 1 }, { Quad | IN, 2 } } },
255 { .name = "kill", .ret_type = 1, .nargs = 2,
256 .args = { { Int | IN, 0 }, { Signal | IN, 1 } } },
257 { .name = "munmap", .ret_type = 1, .nargs = 2,
258 .args = { { Ptr, 0 }, { Int, 1 } } },
259 { .name = "read", .ret_type = 1, .nargs = 3,
260 .args = { { Int, 0 }, { BinString | OUT, 1 }, { Int, 2 } } },
261 { .name = "rename", .ret_type = 1, .nargs = 2,
262 .args = { { Name , 0 } , { Name, 1 } } },
263 { .name = "symlink", .ret_type = 1, .nargs = 2,
264 .args = { { Name , 0 } , { Name, 1 } } },
265 { .name = "posix_openpt", .ret_type = 1, .nargs = 1,
266 .args = { { Open, 0 } } },
267 { .name = "wait4", .ret_type = 1, .nargs = 4,
268 .args = { { Int, 0 }, { ExitStatus | OUT, 1 }, { Waitoptions, 2 },
269 { Rusage | OUT, 3 } } },
270 { .name = "wait6", .ret_type = 1, .nargs = 6,
271 .args = { { Idtype, 0 }, { Int, 1 }, { ExitStatus | OUT, 2 },
272 { Waitoptions, 3 }, { Rusage | OUT, 4 }, { Ptr, 5 } } },
276 /* Xlat idea taken from strace */
282 #define X(a) { a, #a },
283 #define XEND { 0, NULL }
285 static struct xlat kevent_filters[] = {
286 X(EVFILT_READ) X(EVFILT_WRITE) X(EVFILT_AIO) X(EVFILT_VNODE)
287 X(EVFILT_PROC) X(EVFILT_SIGNAL) X(EVFILT_TIMER)
288 X(EVFILT_FS) X(EVFILT_READ) XEND
291 static struct xlat kevent_flags[] = {
292 X(EV_ADD) X(EV_DELETE) X(EV_ENABLE) X(EV_DISABLE) X(EV_ONESHOT)
293 X(EV_CLEAR) X(EV_FLAG1) X(EV_ERROR) X(EV_EOF) XEND
296 struct xlat poll_flags[] = {
297 X(POLLSTANDARD) X(POLLIN) X(POLLPRI) X(POLLOUT) X(POLLERR)
298 X(POLLHUP) X(POLLNVAL) X(POLLRDNORM) X(POLLRDBAND)
299 X(POLLWRBAND) X(POLLINIGNEOF) XEND
302 static struct xlat mmap_flags[] = {
303 X(MAP_SHARED) X(MAP_PRIVATE) X(MAP_FIXED) X(MAP_RENAME)
304 X(MAP_NORESERVE) X(MAP_RESERVED0080) X(MAP_RESERVED0100)
305 X(MAP_HASSEMAPHORE) X(MAP_STACK) X(MAP_NOSYNC) X(MAP_ANON)
306 X(MAP_NOCORE) X(MAP_PREFAULT_READ) XEND
309 static struct xlat mprot_flags[] = {
310 X(PROT_NONE) X(PROT_READ) X(PROT_WRITE) X(PROT_EXEC) XEND
313 static struct xlat whence_arg[] = {
314 X(SEEK_SET) X(SEEK_CUR) X(SEEK_END) XEND
317 static struct xlat sigaction_flags[] = {
318 X(SA_ONSTACK) X(SA_RESTART) X(SA_RESETHAND) X(SA_NOCLDSTOP)
319 X(SA_NODEFER) X(SA_NOCLDWAIT) X(SA_SIGINFO) XEND
322 static struct xlat fcntl_arg[] = {
323 X(F_DUPFD) X(F_GETFD) X(F_SETFD) X(F_GETFL) X(F_SETFL)
324 X(F_GETOWN) X(F_SETOWN) X(F_GETLK) X(F_SETLK) X(F_SETLKW) XEND
327 static struct xlat fcntlfd_arg[] = {
331 static struct xlat fcntlfl_arg[] = {
332 X(O_APPEND) X(O_ASYNC) X(O_FSYNC) X(O_NONBLOCK) X(O_NOFOLLOW)
336 static struct xlat sockdomain_arg[] = {
337 X(PF_UNSPEC) X(PF_LOCAL) X(PF_UNIX) X(PF_INET) X(PF_IMPLINK)
338 X(PF_PUP) X(PF_CHAOS) X(PF_NETBIOS) X(PF_ISO) X(PF_OSI)
339 X(PF_ECMA) X(PF_DATAKIT) X(PF_CCITT) X(PF_SNA) X(PF_DECnet)
340 X(PF_DLI) X(PF_LAT) X(PF_HYLINK) X(PF_APPLETALK) X(PF_ROUTE)
341 X(PF_LINK) X(PF_XTP) X(PF_COIP) X(PF_CNT) X(PF_SIP) X(PF_IPX)
342 X(PF_RTIP) X(PF_PIP) X(PF_ISDN) X(PF_KEY) X(PF_INET6)
343 X(PF_NATM) X(PF_ATM) X(PF_NETGRAPH) X(PF_SLOW) X(PF_SCLUSTER)
344 X(PF_ARP) X(PF_BLUETOOTH) XEND
347 static struct xlat socktype_arg[] = {
348 X(SOCK_STREAM) X(SOCK_DGRAM) X(SOCK_RAW) X(SOCK_RDM)
349 X(SOCK_SEQPACKET) XEND
352 static struct xlat open_flags[] = {
353 X(O_RDONLY) X(O_WRONLY) X(O_RDWR) X(O_ACCMODE) X(O_NONBLOCK)
354 X(O_APPEND) X(O_SHLOCK) X(O_EXLOCK) X(O_ASYNC) X(O_FSYNC)
355 X(O_NOFOLLOW) X(O_CREAT) X(O_TRUNC) X(O_EXCL) X(O_NOCTTY)
356 X(O_DIRECT) X(O_DIRECTORY) X(O_EXEC) X(O_TTY_INIT) X(O_CLOEXEC) XEND
359 static struct xlat shutdown_arg[] = {
360 X(SHUT_RD) X(SHUT_WR) X(SHUT_RDWR) XEND
363 static struct xlat resource_arg[] = {
364 X(RLIMIT_CPU) X(RLIMIT_FSIZE) X(RLIMIT_DATA) X(RLIMIT_STACK)
365 X(RLIMIT_CORE) X(RLIMIT_RSS) X(RLIMIT_MEMLOCK) X(RLIMIT_NPROC)
366 X(RLIMIT_NOFILE) X(RLIMIT_SBSIZE) X(RLIMIT_VMEM) XEND
369 static struct xlat pathconf_arg[] = {
370 X(_PC_LINK_MAX) X(_PC_MAX_CANON) X(_PC_MAX_INPUT)
371 X(_PC_NAME_MAX) X(_PC_PATH_MAX) X(_PC_PIPE_BUF)
372 X(_PC_CHOWN_RESTRICTED) X(_PC_NO_TRUNC) X(_PC_VDISABLE)
373 X(_PC_ASYNC_IO) X(_PC_PRIO_IO) X(_PC_SYNC_IO)
374 X(_PC_ALLOC_SIZE_MIN) X(_PC_FILESIZEBITS)
375 X(_PC_REC_INCR_XFER_SIZE) X(_PC_REC_MAX_XFER_SIZE)
376 X(_PC_REC_MIN_XFER_SIZE) X(_PC_REC_XFER_ALIGN)
377 X(_PC_SYMLINK_MAX) X(_PC_ACL_EXTENDED) X(_PC_ACL_PATH_MAX)
378 X(_PC_CAP_PRESENT) X(_PC_INF_PRESENT) X(_PC_MAC_PRESENT)
382 static struct xlat rfork_flags[] = {
383 X(RFPROC) X(RFNOWAIT) X(RFFDG) X(RFCFDG) X(RFTHREAD) X(RFMEM)
384 X(RFSIGSHARE) X(RFTSIGZMB) X(RFLINUXTHPN) XEND
387 static struct xlat wait_options[] = {
388 X(WNOHANG) X(WUNTRACED) X(WCONTINUED) X(WNOWAIT) X(WEXITED)
392 static struct xlat idtype_arg[] = {
393 X(P_PID) X(P_PPID) X(P_PGID) X(P_SID) X(P_CID) X(P_UID) X(P_GID)
394 X(P_ALL) X(P_LWPID) X(P_TASKID) X(P_PROJID) X(P_POOLID) X(P_JAILID)
395 X(P_CTID) X(P_CPUID) X(P_PSETID) XEND
402 * Searches an xlat array for a value, and returns it if found. Otherwise
403 * return a string representation.
406 lookup(struct xlat *xlat, int val, int base)
410 for (; xlat->str != NULL; xlat++)
411 if (xlat->val == val)
415 sprintf(tmp, "0%o", val);
418 sprintf(tmp, "0x%x", val);
421 sprintf(tmp, "%u", val);
424 errx(1,"Unknown lookup base");
431 xlookup(struct xlat *xlat, int val)
434 return (lookup(xlat, val, 16));
437 /* Searches an xlat array containing bitfield values. Remaining bits
438 set after removing the known ones are printed at the end:
441 xlookup_bits(struct xlat *xlat, int val)
444 static char str[512];
448 for (; xlat->str != NULL; xlat++) {
449 if ((xlat->val & rem) == xlat->val) {
450 /* don't print the "all-bits-zero" string unless all
451 bits are really zero */
452 if (xlat->val == 0 && val != 0)
454 len += sprintf(str + len, "%s|", xlat->str);
458 /* if we have leftover bits or didn't match anything */
460 len += sprintf(str + len, "0x%x", rem);
461 if (len && str[len - 1] == '|')
468 * If/when the list gets big, it might be desirable to do it
469 * as a hash table or binary search.
473 get_syscall(const char *name)
481 if (strcmp(name, sc->name) == 0)
491 * Copy a fixed amount of bytes from the process.
495 get_struct(pid_t pid, void *offset, void *buf, int len)
497 struct ptrace_io_desc iorequest;
499 iorequest.piod_op = PIOD_READ_D;
500 iorequest.piod_offs = offset;
501 iorequest.piod_addr = buf;
502 iorequest.piod_len = len;
503 if (ptrace(PT_IO, pid, (caddr_t)&iorequest, 0) < 0)
509 #define BLOCKSIZE 1024
512 * Copy a string from the process. Note that it is
513 * expected to be a C string, but if max is set, it will
514 * only get that much.
518 get_string(pid_t pid, void *offset, int max)
520 struct ptrace_io_desc iorequest;
522 int diff, i, size, totalsize;
525 totalsize = size = max ? (max + 1) : BLOCKSIZE;
526 buf = malloc(totalsize);
530 diff = totalsize - size;
531 iorequest.piod_op = PIOD_READ_D;
532 iorequest.piod_offs = (char *)offset + diff;
533 iorequest.piod_addr = buf + diff;
534 iorequest.piod_len = size;
535 if (ptrace(PT_IO, pid, (caddr_t)&iorequest, 0) < 0) {
539 for (i = 0 ; i < size; i++) {
540 if (buf[diff + i] == '\0')
543 if (totalsize < MAXSIZE - BLOCKSIZE && max == 0) {
544 totalsize += BLOCKSIZE;
545 buf = realloc(buf, totalsize);
548 buf[totalsize - 1] = '\0';
561 asprintf(&tmp, "%d", sig);
567 * Converts a syscall argument into a string. Said string is
568 * allocated via malloc(), so needs to be free()'d. The file
569 * descriptor is for the process' memory (via /proc), and is used
570 * to get any data (where the argument is a pointer). sc is
571 * a pointer to the syscall description (see above); args is
572 * an array of all of the system call arguments.
576 print_arg(struct syscall_args *sc, unsigned long *args, long retval,
577 struct trussinfo *trussinfo)
583 pid = trussinfo->pid;
584 switch (sc->type & ARG_MASK) {
586 asprintf(&tmp, "0x%x", (int)args[sc->offset]);
589 asprintf(&tmp, "0%o", (int)args[sc->offset]);
592 asprintf(&tmp, "%d", (int)args[sc->offset]);
595 /* NULL-terminated string. */
597 tmp2 = get_string(pid, (void*)args[sc->offset], 0);
598 asprintf(&tmp, "\"%s\"", tmp2);
603 /* Binary block of data that might have printable characters.
604 XXX If type|OUT, assume that the length is the syscall's
605 return value. Otherwise, assume that the length of the block
606 is in the next syscall argument. */
607 int max_string = trussinfo->strsize;
608 char tmp2[max_string+1], *tmp3;
615 len = args[sc->offset + 1];
617 /* Don't print more than max_string characters, to avoid word
618 wrap. If we have to truncate put some ... after the string.
620 if (len > max_string) {
624 if (len && get_struct(pid, (void*)args[sc->offset], &tmp2, len)
626 tmp3 = malloc(len * 4 + 1);
628 if (strvisx(tmp3, tmp2, len,
629 VIS_CSTYLE|VIS_TAB|VIS_NL) <= max_string)
634 asprintf(&tmp, "\"%s\"%s", tmp3, truncated ?
638 asprintf(&tmp, "0x%lx", args[sc->offset]);
646 char *strarray[100]; /* XXX This is ugly. */
648 if (get_struct(pid, (void *)args[sc->offset],
649 (void *)&strarray, sizeof(strarray)) == -1)
650 err(1, "get_struct %p", (void *)args[sc->offset]);
654 /* Find out how large of a buffer we'll need. */
655 while (strarray[num] != NULL) {
656 string = get_string(pid, (void*)strarray[num], 0);
657 size += strlen(string);
661 size += 4 + (num * 4);
662 tmp = (char *)malloc(size);
665 tmp2 += sprintf(tmp2, " [");
666 for (i = 0; i < num; i++) {
667 string = get_string(pid, (void*)strarray[i], 0);
668 tmp2 += sprintf(tmp2, " \"%s\"%c", string,
669 (i + 1 == num) ? ' ' : ',');
672 tmp2 += sprintf(tmp2, "]");
677 asprintf(&tmp, "0x%lx", args[sc->offset]);
681 unsigned long long ll;
682 ll = *(unsigned long long *)(args + sc->offset);
683 asprintf(&tmp, "0x%llx", ll);
688 asprintf(&tmp, "0x%lx", args[sc->offset]);
696 tmp2 = get_string(pid, (void*)args[sc->offset], retval);
697 asprintf(&tmp, "\"%s\"", tmp2);
702 const char *temp = ioctlname(args[sc->offset]);
706 unsigned long arg = args[sc->offset];
707 asprintf(&tmp, "0x%lx { IO%s%s 0x%lx('%c'), %lu, %lu }",
708 arg, arg & IOC_OUT ? "R" : "",
709 arg & IOC_IN ? "W" : "", IOCGROUP(arg),
710 isprint(IOCGROUP(arg)) ? (char)IOCGROUP(arg) : '?',
711 arg & 0xFF, IOCPARM_LEN(arg));
717 if (get_struct(pid, (void *)args[sc->offset], &umtx,
719 asprintf(&tmp, "{ 0x%lx }", (long)umtx.u_owner);
721 asprintf(&tmp, "0x%lx", args[sc->offset]);
726 if (get_struct(pid, (void *)args[sc->offset], &ts,
728 asprintf(&tmp, "{%ld.%09ld }", (long)ts.tv_sec,
731 asprintf(&tmp, "0x%lx", args[sc->offset]);
736 if (get_struct(pid, (void *)args[sc->offset], &tv, sizeof(tv))
738 asprintf(&tmp, "{%ld.%06ld }", (long)tv.tv_sec,
741 asprintf(&tmp, "0x%lx", args[sc->offset]);
745 struct timeval tv[2];
746 if (get_struct(pid, (void *)args[sc->offset], &tv, sizeof(tv))
748 asprintf(&tmp, "{%ld.%06ld, %ld.%06ld }",
749 (long)tv[0].tv_sec, tv[0].tv_usec,
750 (long)tv[1].tv_sec, tv[1].tv_usec);
752 asprintf(&tmp, "0x%lx", args[sc->offset]);
756 struct itimerval itv;
757 if (get_struct(pid, (void *)args[sc->offset], &itv,
759 asprintf(&tmp, "{%ld.%06ld, %ld.%06ld }",
760 (long)itv.it_interval.tv_sec,
761 itv.it_interval.tv_usec,
762 (long)itv.it_value.tv_sec,
763 itv.it_value.tv_usec);
765 asprintf(&tmp, "0x%lx", args[sc->offset]);
770 * XXX: A Pollfd argument expects the /next/ syscall argument
771 * to be the number of fds in the array. This matches the poll
775 int numfds = args[sc->offset+1];
776 int bytes = sizeof(struct pollfd) * numfds;
777 int i, tmpsize, u, used;
778 const int per_fd = 100;
780 if ((pfd = malloc(bytes)) == NULL)
781 err(1, "Cannot malloc %d bytes for pollfd array",
783 if (get_struct(pid, (void *)args[sc->offset], pfd, bytes)
786 tmpsize = 1 + per_fd * numfds + 2;
787 if ((tmp = malloc(tmpsize)) == NULL)
788 err(1, "Cannot alloc %d bytes for poll output",
792 for (i = 0; i < numfds; i++) {
794 u = snprintf(tmp + used, per_fd, "%s%d/%s",
795 i > 0 ? " " : "", pfd[i].fd,
796 xlookup_bits(poll_flags, pfd[i].events));
798 used += u < per_fd ? u : per_fd;
803 asprintf(&tmp, "0x%lx", args[sc->offset]);
810 * XXX: A Fd_set argument expects the /first/ syscall argument
811 * to be the number of fds in the array. This matches the
815 int numfds = args[0];
816 int bytes = _howmany(numfds, _NFDBITS) * _NFDBITS;
817 int i, tmpsize, u, used;
818 const int per_fd = 20;
820 if ((fds = malloc(bytes)) == NULL)
821 err(1, "Cannot malloc %d bytes for fd_set array",
823 if (get_struct(pid, (void *)args[sc->offset], fds, bytes)
826 tmpsize = 1 + numfds * per_fd + 2;
827 if ((tmp = malloc(tmpsize)) == NULL)
828 err(1, "Cannot alloc %d bytes for fd_set "
832 for (i = 0; i < numfds; i++) {
833 if (FD_ISSET(i, fds)) {
834 u = snprintf(tmp + used, per_fd, "%d ",
837 used += u < per_fd ? u : per_fd;
840 if (tmp[used-1] == ' ')
845 asprintf(&tmp, "0x%lx", args[sc->offset]);
850 tmp = strsig2(args[sc->offset]);
858 sig = args[sc->offset];
859 if (get_struct(pid, (void *)args[sc->offset], (void *)&ss,
861 asprintf(&tmp, "0x%lx", args[sc->offset]);
864 tmp = malloc(sys_nsig * 8); /* 7 bytes avg per signal name */
866 for (i = 1; i < sys_nsig; i++) {
867 if (sigismember(&ss, i)) {
869 used += sprintf(tmp + used, "%s|", signame);
880 switch (args[sc->offset]) {
881 #define S(a) case a: tmp = strdup(#a); break;
888 asprintf(&tmp, "0x%lx", args[sc->offset]);
892 /* XXX output depends on the value of the previous argument */
893 switch (args[sc->offset-1]) {
895 tmp = strdup(xlookup_bits(fcntlfd_arg,
899 tmp = strdup(xlookup_bits(fcntlfl_arg,
908 asprintf(&tmp, "0x%lx", args[sc->offset]);
914 tmp = strdup(xlookup_bits(open_flags, args[sc->offset]));
917 tmp = strdup(xlookup(fcntl_arg, args[sc->offset]));
920 tmp = strdup(xlookup_bits(mprot_flags, args[sc->offset]));
923 char *base, *alignstr;
927 * MAP_ALIGNED can't be handled by xlookup_bits(), so
928 * generate that string manually and prepend it to the
929 * string from xlookup_bits(). Have to be careful to
930 * avoid outputting MAP_ALIGNED|0 if MAP_ALIGNED is
933 flags = args[sc->offset] & ~MAP_ALIGNMENT_MASK;
934 align = args[sc->offset] & MAP_ALIGNMENT_MASK;
936 if (align == MAP_ALIGNED_SUPER)
937 alignstr = strdup("MAP_ALIGNED_SUPER");
939 asprintf(&alignstr, "MAP_ALIGNED(%d)",
940 align >> MAP_ALIGNMENT_SHIFT);
947 base = strdup(xlookup_bits(mmap_flags, flags));
948 if (alignstr == NULL) {
952 asprintf(&tmp, "%s|%s", alignstr, base);
958 tmp = strdup(xlookup(whence_arg, args[sc->offset]));
961 tmp = strdup(xlookup(sockdomain_arg, args[sc->offset]));
964 tmp = strdup(xlookup(socktype_arg, args[sc->offset]));
967 tmp = strdup(xlookup(shutdown_arg, args[sc->offset]));
970 tmp = strdup(xlookup(resource_arg, args[sc->offset]));
973 tmp = strdup(xlookup(pathconf_arg, args[sc->offset]));
976 tmp = strdup(xlookup_bits(rfork_flags, args[sc->offset]));
979 struct sockaddr_storage ss;
981 struct sockaddr_in *lsin;
982 struct sockaddr_in6 *lsin6;
983 struct sockaddr_un *sun;
989 if (args[sc->offset] == 0) {
990 asprintf(&tmp, "NULL");
994 /* yuck: get ss_len */
995 if (get_struct(pid, (void *)args[sc->offset], (void *)&ss,
996 sizeof(ss.ss_len) + sizeof(ss.ss_family)) == -1)
997 err(1, "get_struct %p", (void *)args[sc->offset]);
999 * If ss_len is 0, then try to guess from the sockaddr type.
1000 * AF_UNIX may be initialized incorrectly, so always frob
1001 * it by using the "right" size.
1003 if (ss.ss_len == 0 || ss.ss_family == AF_UNIX) {
1004 switch (ss.ss_family) {
1006 ss.ss_len = sizeof(*lsin);
1009 ss.ss_len = sizeof(*sun);
1016 if (get_struct(pid, (void *)args[sc->offset], (void *)&ss,
1018 err(2, "get_struct %p", (void *)args[sc->offset]);
1021 switch (ss.ss_family) {
1023 lsin = (struct sockaddr_in *)&ss;
1024 inet_ntop(AF_INET, &lsin->sin_addr, addr, sizeof addr);
1025 asprintf(&tmp, "{ AF_INET %s:%d }", addr,
1026 htons(lsin->sin_port));
1029 lsin6 = (struct sockaddr_in6 *)&ss;
1030 inet_ntop(AF_INET6, &lsin6->sin6_addr, addr,
1032 asprintf(&tmp, "{ AF_INET6 [%s]:%d }", addr,
1033 htons(lsin6->sin6_port));
1036 sun = (struct sockaddr_un *)&ss;
1037 asprintf(&tmp, "{ AF_UNIX \"%s\" }", sun->sun_path);
1040 sa = (struct sockaddr *)&ss;
1041 asprintf(&tmp, "{ sa_len = %d, sa_family = %d, sa_data "
1042 "= {%n%*s } }", (int)sa->sa_len, (int)sa->sa_family,
1043 &i, 6 * (int)(sa->sa_len - ((char *)&sa->sa_data -
1047 for (q = (u_char *)&sa->sa_data;
1048 q < (u_char *)sa + sa->sa_len; q++)
1049 p += sprintf(p, " %#02x,", *q);
1055 struct sigaction sa;
1059 if (get_struct(pid, (void *)args[sc->offset], &sa, sizeof(sa))
1061 asprintf(&hand, "%p", sa.sa_handler);
1062 if (sa.sa_handler == SIG_DFL)
1064 else if (sa.sa_handler == SIG_IGN)
1069 asprintf(&tmp, "{ %s %s ss_t }", h,
1070 xlookup_bits(sigaction_flags, sa.sa_flags));
1073 asprintf(&tmp, "0x%lx", args[sc->offset]);
1078 * XXX XXX: the size of the array is determined by either the
1079 * next syscall argument, or by the syscall returnvalue,
1080 * depending on which argument number we are. This matches the
1081 * kevent syscall, but luckily that's the only syscall that uses
1087 int i, tmpsize, u, used;
1088 const int per_ke = 100;
1090 if (sc->offset == 1)
1091 numevents = args[sc->offset+1];
1092 else if (sc->offset == 3 && retval != -1)
1096 bytes = sizeof(struct kevent) * numevents;
1097 if ((ke = malloc(bytes)) == NULL)
1098 err(1, "Cannot malloc %d bytes for kevent array",
1100 if (numevents >= 0 && get_struct(pid, (void *)args[sc->offset],
1103 tmpsize = 1 + per_ke * numevents + 2;
1104 if ((tmp = malloc(tmpsize)) == NULL)
1105 err(1, "Cannot alloc %d bytes for kevent "
1109 for (i = 0; i < numevents; i++) {
1110 u = snprintf(tmp + used, per_ke,
1111 "%s%p,%s,%s,%d,%p,%p",
1113 (void *)ke[i].ident,
1114 xlookup(kevent_filters, ke[i].filter),
1115 xlookup_bits(kevent_flags, ke[i].flags),
1118 (void *)ke[i].udata);
1120 used += u < per_ke ? u : per_ke;
1125 asprintf(&tmp, "0x%lx", args[sc->offset]);
1132 if (get_struct(pid, (void *)args[sc->offset], &st, sizeof(st))
1135 strmode(st.st_mode, mode);
1137 "{ mode=%s,inode=%jd,size=%jd,blksize=%ld }", mode,
1138 (intmax_t)st.st_ino, (intmax_t)st.st_size,
1139 (long)st.st_blksize);
1141 asprintf(&tmp, "0x%lx", args[sc->offset]);
1147 if (get_struct(pid, (void *)args[sc->offset], &ru, sizeof(ru))
1150 "{ u=%ld.%06ld,s=%ld.%06ld,in=%ld,out=%ld }",
1151 (long)ru.ru_utime.tv_sec, ru.ru_utime.tv_usec,
1152 (long)ru.ru_stime.tv_sec, ru.ru_stime.tv_usec,
1153 ru.ru_inblock, ru.ru_oublock);
1155 asprintf(&tmp, "0x%lx", args[sc->offset]);
1160 if (get_struct(pid, (void *)args[sc->offset], &rl, sizeof(rl))
1162 asprintf(&tmp, "{ cur=%ju,max=%ju }",
1163 rl.rlim_cur, rl.rlim_max);
1165 asprintf(&tmp, "0x%lx", args[sc->offset]);
1172 if (get_struct(pid, (void *)args[sc->offset], &status,
1173 sizeof(status)) != -1) {
1174 if (WIFCONTINUED(status))
1175 tmp = strdup("{ CONTINUED }");
1176 else if (WIFEXITED(status))
1177 asprintf(&tmp, "{ EXITED,val=%d }",
1178 WEXITSTATUS(status));
1179 else if (WIFSIGNALED(status))
1180 asprintf(&tmp, "{ SIGNALED,sig=%s%s }",
1181 signame = strsig2(WTERMSIG(status)),
1182 WCOREDUMP(status) ? ",cored" : "");
1184 asprintf(&tmp, "{ STOPPED,sig=%s }",
1185 signame = strsig2(WTERMSIG(status)));
1187 asprintf(&tmp, "0x%lx", args[sc->offset]);
1192 tmp = strdup(xlookup_bits(wait_options, args[sc->offset]));
1195 tmp = strdup(xlookup(idtype_arg, args[sc->offset]));
1198 errx(1, "Invalid argument type %d\n", sc->type & ARG_MASK);
1205 * Print (to outfile) the system call and its arguments. Note that
1206 * nargs is the number of arguments (not the number of words; this is
1207 * potentially confusing, I know).
1211 print_syscall(struct trussinfo *trussinfo, const char *name, int nargs,
1214 struct timespec timediff;
1218 if (trussinfo->flags & FOLLOWFORKS)
1219 len += fprintf(trussinfo->outfile, "%5d: ", trussinfo->pid);
1221 if (name != NULL && (strcmp(name, "execve") == 0 ||
1222 strcmp(name, "exit") == 0)) {
1223 clock_gettime(CLOCK_REALTIME, &trussinfo->curthread->after);
1226 if (trussinfo->flags & ABSOLUTETIMESTAMPS) {
1227 timespecsubt(&trussinfo->curthread->after,
1228 &trussinfo->start_time, &timediff);
1229 len += fprintf(trussinfo->outfile, "%ld.%09ld ",
1230 (long)timediff.tv_sec, timediff.tv_nsec);
1233 if (trussinfo->flags & RELATIVETIMESTAMPS) {
1234 timespecsubt(&trussinfo->curthread->after,
1235 &trussinfo->curthread->before, &timediff);
1236 len += fprintf(trussinfo->outfile, "%ld.%09ld ",
1237 (long)timediff.tv_sec, timediff.tv_nsec);
1240 len += fprintf(trussinfo->outfile, "%s(", name);
1242 for (i = 0; i < nargs; i++) {
1244 len += fprintf(trussinfo->outfile, "%s", s_args[i]);
1246 len += fprintf(trussinfo->outfile,
1247 "<missing argument>");
1248 len += fprintf(trussinfo->outfile, "%s", i < (nargs - 1) ?
1251 len += fprintf(trussinfo->outfile, ")");
1252 for (i = 0; i < 6 - (len / 8); i++)
1253 fprintf(trussinfo->outfile, "\t");
1257 print_syscall_ret(struct trussinfo *trussinfo, const char *name, int nargs,
1258 char **s_args, int errorp, long retval, struct syscall *sc)
1260 struct timespec timediff;
1262 if (trussinfo->flags & COUNTONLY) {
1265 clock_gettime(CLOCK_REALTIME, &trussinfo->curthread->after);
1266 timespecsubt(&trussinfo->curthread->after,
1267 &trussinfo->curthread->before, &timediff);
1268 timespecadd(&sc->time, &timediff, &sc->time);
1275 print_syscall(trussinfo, name, nargs, s_args);
1276 fflush(trussinfo->outfile);
1278 fprintf(trussinfo->outfile, " ERR#%ld '%s'\n", retval,
1282 * Because pipe(2) has a special assembly glue to provide the
1283 * libc API, we have to adjust retval.
1285 if (name != NULL && strcmp(name, "pipe") == 0)
1287 fprintf(trussinfo->outfile, " = %ld (0x%lx)\n", retval, retval);
1292 print_summary(struct trussinfo *trussinfo)
1294 struct timespec total = {0, 0};
1298 fprintf(trussinfo->outfile, "%-20s%15s%8s%8s\n",
1299 "syscall", "seconds", "calls", "errors");
1301 for (sc = syscalls; sc->name != NULL; sc++)
1303 fprintf(trussinfo->outfile, "%-20s%5jd.%09ld%8d%8d\n",
1304 sc->name, (intmax_t)sc->time.tv_sec,
1305 sc->time.tv_nsec, sc->ncalls, sc->nerror);
1306 timespecadd(&total, &sc->time, &total);
1307 ncall += sc->ncalls;
1308 nerror += sc->nerror;
1310 fprintf(trussinfo->outfile, "%20s%15s%8s%8s\n",
1311 "", "-------------", "-------", "-------");
1312 fprintf(trussinfo->outfile, "%-20s%5jd.%09ld%8d%8d\n",
1313 "", (intmax_t)total.tv_sec, total.tv_nsec, ncall, nerror);