1 /*- 2 * SPDX-License-Identifier: BSD-4-Clause 3 * 4 * Copyright 1997 Sean Eric Fagan 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Sean Eric Fagan 17 * 4. Neither the name of the author may be used to endorse or promote 18 * products derived from this software without specific prior written 19 * permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #include <sys/cdefs.h> 35 __FBSDID("$FreeBSD$"); 36 37 /* 38 * This file has routines used to print out system calls and their 39 * arguments. 40 */ 41 42 #include <sys/aio.h> 43 #include <sys/capsicum.h> 44 #include <sys/types.h> 45 #define _WANT_FREEBSD11_KEVENT 46 #include <sys/event.h> 47 #include <sys/ioccom.h> 48 #include <sys/mman.h> 49 #include <sys/mount.h> 50 #include <sys/poll.h> 51 #include <sys/procfs.h> 52 #include <sys/ptrace.h> 53 #include <sys/resource.h> 54 #include <sys/sched.h> 55 #include <sys/socket.h> 56 #define _WANT_FREEBSD11_STAT 57 #include <sys/stat.h> 58 #include <sys/sysctl.h> 59 #include <sys/time.h> 60 #include <sys/un.h> 61 #include <sys/wait.h> 62 #include <netinet/in.h> 63 #include <netinet/sctp.h> 64 #include <arpa/inet.h> 65 66 #include <assert.h> 67 #include <ctype.h> 68 #include <err.h> 69 #define _WANT_KERNEL_ERRNO 70 #include <errno.h> 71 #include <fcntl.h> 72 #include <signal.h> 73 #include <stdbool.h> 74 #include <stddef.h> 75 #include <stdio.h> 76 #include <stdlib.h> 77 #include <string.h> 78 #include <sysdecode.h> 79 #include <unistd.h> 80 #include <vis.h> 81 82 #include "truss.h" 83 #include "extern.h" 84 #include "syscall.h" 85 86 /* 87 * This should probably be in its own file, sorted alphabetically. 88 * 89 * Note: We only scan this table on the initial syscall number to calling 90 * convention lookup, i.e. once each time a new syscall is encountered. This 91 * is unlikely to be a performance issue, but if it is we could sort this array 92 * and use a binary search instead. 93 */ 94 static const struct syscall_decode decoded_syscalls[] = { 95 /* Native ABI */ 96 { .name = "__acl_aclcheck_fd", .ret_type = 1, .nargs = 3, 97 .args = { { Int, 0 }, { Acltype, 1 }, { Ptr, 2 } } }, 98 { .name = "__acl_aclcheck_file", .ret_type = 1, .nargs = 3, 99 .args = { { Name, 0 }, { Acltype, 1 }, { Ptr, 2 } } }, 100 { .name = "__acl_aclcheck_link", .ret_type = 1, .nargs = 3, 101 .args = { { Name, 0 }, { Acltype, 1 }, { Ptr, 2 } } }, 102 { .name = "__acl_delete_fd", .ret_type = 1, .nargs = 2, 103 .args = { { Int, 0 }, { Acltype, 1 } } }, 104 { .name = "__acl_delete_file", .ret_type = 1, .nargs = 2, 105 .args = { { Name, 0 }, { Acltype, 1 } } }, 106 { .name = "__acl_delete_link", .ret_type = 1, .nargs = 2, 107 .args = { { Name, 0 }, { Acltype, 1 } } }, 108 { .name = "__acl_get_fd", .ret_type = 1, .nargs = 3, 109 .args = { { Int, 0 }, { Acltype, 1 }, { Ptr, 2 } } }, 110 { .name = "__acl_get_file", .ret_type = 1, .nargs = 3, 111 .args = { { Name, 0 }, { Acltype, 1 }, { Ptr, 2 } } }, 112 { .name = "__acl_get_link", .ret_type = 1, .nargs = 3, 113 .args = { { Name, 0 }, { Acltype, 1 }, { Ptr, 2 } } }, 114 { .name = "__acl_set_fd", .ret_type = 1, .nargs = 3, 115 .args = { { Int, 0 }, { Acltype, 1 }, { Ptr, 2 } } }, 116 { .name = "__acl_set_file", .ret_type = 1, .nargs = 3, 117 .args = { { Name, 0 }, { Acltype, 1 }, { Ptr, 2 } } }, 118 { .name = "__acl_set_link", .ret_type = 1, .nargs = 3, 119 .args = { { Name, 0 }, { Acltype, 1 }, { Ptr, 2 } } }, 120 { .name = "__cap_rights_get", .ret_type = 1, .nargs = 3, 121 .args = { { Int, 0 }, { Int, 1 }, { CapRights | OUT, 2 } } }, 122 { .name = "__getcwd", .ret_type = 1, .nargs = 2, 123 .args = { { Name | OUT, 0 }, { Int, 1 } } }, 124 { .name = "__realpathat", .ret_type = 1, .nargs = 5, 125 .args = { { Atfd, 0 }, { Name | IN, 1 }, { Name | OUT, 2 }, 126 { Sizet, 3 }, { Int, 4} } }, 127 { .name = "_umtx_op", .ret_type = 1, .nargs = 5, 128 .args = { { Ptr, 0 }, { Umtxop, 1 }, { LongHex, 2 }, { Ptr, 3 }, 129 { Ptr, 4 } } }, 130 { .name = "accept", .ret_type = 1, .nargs = 3, 131 .args = { { Int, 0 }, { Sockaddr | OUT, 1 }, { Ptr | OUT, 2 } } }, 132 { .name = "access", .ret_type = 1, .nargs = 2, 133 .args = { { Name | IN, 0 }, { Accessmode, 1 } } }, 134 { .name = "aio_cancel", .ret_type = 1, .nargs = 2, 135 .args = { { Int, 0 }, { Aiocb, 1 } } }, 136 { .name = "aio_error", .ret_type = 1, .nargs = 1, 137 .args = { { Aiocb, 0 } } }, 138 { .name = "aio_fsync", .ret_type = 1, .nargs = 2, 139 .args = { { AiofsyncOp, 0 }, { Aiocb, 1 } } }, 140 { .name = "aio_mlock", .ret_type = 1, .nargs = 1, 141 .args = { { Aiocb, 0 } } }, 142 { .name = "aio_read", .ret_type = 1, .nargs = 1, 143 .args = { { Aiocb, 0 } } }, 144 { .name = "aio_return", .ret_type = 1, .nargs = 1, 145 .args = { { Aiocb, 0 } } }, 146 { .name = "aio_suspend", .ret_type = 1, .nargs = 3, 147 .args = { { AiocbArray, 0 }, { Int, 1 }, { Timespec, 2 } } }, 148 { .name = "aio_waitcomplete", .ret_type = 1, .nargs = 2, 149 .args = { { AiocbPointer | OUT, 0 }, { Timespec, 1 } } }, 150 { .name = "aio_write", .ret_type = 1, .nargs = 1, 151 .args = { { Aiocb, 0 } } }, 152 { .name = "bind", .ret_type = 1, .nargs = 3, 153 .args = { { Int, 0 }, { Sockaddr | IN, 1 }, { Socklent, 2 } } }, 154 { .name = "bindat", .ret_type = 1, .nargs = 4, 155 .args = { { Atfd, 0 }, { Int, 1 }, { Sockaddr | IN, 2 }, 156 { Int, 3 } } }, 157 { .name = "break", .ret_type = 1, .nargs = 1, 158 .args = { { Ptr, 0 } } }, 159 { .name = "cap_fcntls_get", .ret_type = 1, .nargs = 2, 160 .args = { { Int, 0 }, { CapFcntlRights | OUT, 1 } } }, 161 { .name = "cap_fcntls_limit", .ret_type = 1, .nargs = 2, 162 .args = { { Int, 0 }, { CapFcntlRights, 1 } } }, 163 { .name = "cap_getmode", .ret_type = 1, .nargs = 1, 164 .args = { { PUInt | OUT, 0 } } }, 165 { .name = "cap_rights_limit", .ret_type = 1, .nargs = 2, 166 .args = { { Int, 0 }, { CapRights, 1 } } }, 167 { .name = "chdir", .ret_type = 1, .nargs = 1, 168 .args = { { Name, 0 } } }, 169 { .name = "chflags", .ret_type = 1, .nargs = 2, 170 .args = { { Name | IN, 0 }, { FileFlags, 1 } } }, 171 { .name = "chflagsat", .ret_type = 1, .nargs = 4, 172 .args = { { Atfd, 0 }, { Name | IN, 1 }, { FileFlags, 2 }, 173 { Atflags, 3 } } }, 174 { .name = "chmod", .ret_type = 1, .nargs = 2, 175 .args = { { Name, 0 }, { Octal, 1 } } }, 176 { .name = "chown", .ret_type = 1, .nargs = 3, 177 .args = { { Name, 0 }, { Int, 1 }, { Int, 2 } } }, 178 { .name = "chroot", .ret_type = 1, .nargs = 1, 179 .args = { { Name, 0 } } }, 180 { .name = "clock_gettime", .ret_type = 1, .nargs = 2, 181 .args = { { Int, 0 }, { Timespec | OUT, 1 } } }, 182 { .name = "close", .ret_type = 1, .nargs = 1, 183 .args = { { Int, 0 } } }, 184 { .name = "closefrom", .ret_type = 1, .nargs = 1, 185 .args = { { Int, 0 } } }, 186 { .name = "close_range", .ret_type = 1, .nargs = 3, 187 .args = { { Int, 0 }, { Int, 1 }, { Closerangeflags, 2 } } }, 188 { .name = "compat11.fstat", .ret_type = 1, .nargs = 2, 189 .args = { { Int, 0 }, { Stat11 | OUT, 1 } } }, 190 { .name = "compat11.fstatat", .ret_type = 1, .nargs = 4, 191 .args = { { Atfd, 0 }, { Name | IN, 1 }, { Stat11 | OUT, 2 }, 192 { Atflags, 3 } } }, 193 { .name = "compat11.kevent", .ret_type = 1, .nargs = 6, 194 .args = { { Int, 0 }, { Kevent11, 1 }, { Int, 2 }, 195 { Kevent11 | OUT, 3 }, { Int, 4 }, { Timespec, 5 } } }, 196 { .name = "compat11.lstat", .ret_type = 1, .nargs = 2, 197 .args = { { Name | IN, 0 }, { Stat11 | OUT, 1 } } }, 198 { .name = "compat11.mknod", .ret_type = 1, .nargs = 3, 199 .args = { { Name, 0 }, { Octal, 1 }, { Int, 2 } } }, 200 { .name = "compat11.mknodat", .ret_type = 1, .nargs = 4, 201 .args = { { Atfd, 0 }, { Name, 1 }, { Octal, 2 }, { Int, 3 } } }, 202 { .name = "compat11.stat", .ret_type = 1, .nargs = 2, 203 .args = { { Name | IN, 0 }, { Stat11 | OUT, 1 } } }, 204 { .name = "connect", .ret_type = 1, .nargs = 3, 205 .args = { { Int, 0 }, { Sockaddr | IN, 1 }, { Socklent, 2 } } }, 206 { .name = "connectat", .ret_type = 1, .nargs = 4, 207 .args = { { Atfd, 0 }, { Int, 1 }, { Sockaddr | IN, 2 }, 208 { Int, 3 } } }, 209 { .name = "dup", .ret_type = 1, .nargs = 1, 210 .args = { { Int, 0 } } }, 211 { .name = "dup2", .ret_type = 1, .nargs = 2, 212 .args = { { Int, 0 }, { Int, 1 } } }, 213 { .name = "eaccess", .ret_type = 1, .nargs = 2, 214 .args = { { Name | IN, 0 }, { Accessmode, 1 } } }, 215 { .name = "execve", .ret_type = 1, .nargs = 3, 216 .args = { { Name | IN, 0 }, { ExecArgs | IN, 1 }, 217 { ExecEnv | IN, 2 } } }, 218 { .name = "exit", .ret_type = 0, .nargs = 1, 219 .args = { { Hex, 0 } } }, 220 { .name = "extattr_delete_fd", .ret_type = 1, .nargs = 3, 221 .args = { { Int, 0 }, { Extattrnamespace, 1 }, { Name, 2 } } }, 222 { .name = "extattr_delete_file", .ret_type = 1, .nargs = 3, 223 .args = { { Name, 0 }, { Extattrnamespace, 1 }, { Name, 2 } } }, 224 { .name = "extattr_delete_link", .ret_type = 1, .nargs = 3, 225 .args = { { Name, 0 }, { Extattrnamespace, 1 }, { Name, 2 } } }, 226 { .name = "extattr_get_fd", .ret_type = 1, .nargs = 5, 227 .args = { { Int, 0 }, { Extattrnamespace, 1 }, { Name, 2 }, 228 { BinString | OUT, 3 }, { Sizet, 4 } } }, 229 { .name = "extattr_get_file", .ret_type = 1, .nargs = 5, 230 .args = { { Name, 0 }, { Extattrnamespace, 1 }, { Name, 2 }, 231 { BinString | OUT, 3 }, { Sizet, 4 } } }, 232 { .name = "extattr_get_link", .ret_type = 1, .nargs = 5, 233 .args = { { Name, 0 }, { Extattrnamespace, 1 }, { Name, 2 }, 234 { BinString | OUT, 3 }, { Sizet, 4 } } }, 235 { .name = "extattr_list_fd", .ret_type = 1, .nargs = 4, 236 .args = { { Int, 0 }, { Extattrnamespace, 1 }, { BinString | OUT, 2 }, 237 { Sizet, 3 } } }, 238 { .name = "extattr_list_file", .ret_type = 1, .nargs = 4, 239 .args = { { Name, 0 }, { Extattrnamespace, 1 }, { BinString | OUT, 2 }, 240 { Sizet, 3 } } }, 241 { .name = "extattr_list_link", .ret_type = 1, .nargs = 4, 242 .args = { { Name, 0 }, { Extattrnamespace, 1 }, { BinString | OUT, 2 }, 243 { Sizet, 3 } } }, 244 { .name = "extattr_set_fd", .ret_type = 1, .nargs = 5, 245 .args = { { Int, 0 }, { Extattrnamespace, 1 }, { Name, 2 }, 246 { BinString | IN, 3 }, { Sizet, 4 } } }, 247 { .name = "extattr_set_file", .ret_type = 1, .nargs = 5, 248 .args = { { Name, 0 }, { Extattrnamespace, 1 }, { Name, 2 }, 249 { BinString | IN, 3 }, { Sizet, 4 } } }, 250 { .name = "extattr_set_link", .ret_type = 1, .nargs = 5, 251 .args = { { Name, 0 }, { Extattrnamespace, 1 }, { Name, 2 }, 252 { BinString | IN, 3 }, { Sizet, 4 } } }, 253 { .name = "extattrctl", .ret_type = 1, .nargs = 5, 254 .args = { { Name, 0 }, { Hex, 1 }, { Name, 2 }, 255 { Extattrnamespace, 3 }, { Name, 4 } } }, 256 { .name = "faccessat", .ret_type = 1, .nargs = 4, 257 .args = { { Atfd, 0 }, { Name | IN, 1 }, { Accessmode, 2 }, 258 { Atflags, 3 } } }, 259 { .name = "fchflags", .ret_type = 1, .nargs = 2, 260 .args = { { Int, 0 }, { FileFlags, 1 } } }, 261 { .name = "fchmod", .ret_type = 1, .nargs = 2, 262 .args = { { Int, 0 }, { Octal, 1 } } }, 263 { .name = "fchmodat", .ret_type = 1, .nargs = 4, 264 .args = { { Atfd, 0 }, { Name, 1 }, { Octal, 2 }, { Atflags, 3 } } }, 265 { .name = "fchown", .ret_type = 1, .nargs = 3, 266 .args = { { Int, 0 }, { Int, 1 }, { Int, 2 } } }, 267 { .name = "fchownat", .ret_type = 1, .nargs = 5, 268 .args = { { Atfd, 0 }, { Name, 1 }, { Int, 2 }, { Int, 3 }, 269 { Atflags, 4 } } }, 270 { .name = "fcntl", .ret_type = 1, .nargs = 3, 271 .args = { { Int, 0 }, { Fcntl, 1 }, { Fcntlflag, 2 } } }, 272 { .name = "fdatasync", .ret_type = 1, .nargs = 1, 273 .args = { { Int, 0 } } }, 274 { .name = "flock", .ret_type = 1, .nargs = 2, 275 .args = { { Int, 0 }, { Flockop, 1 } } }, 276 { .name = "fstat", .ret_type = 1, .nargs = 2, 277 .args = { { Int, 0 }, { Stat | OUT, 1 } } }, 278 { .name = "fstatat", .ret_type = 1, .nargs = 4, 279 .args = { { Atfd, 0 }, { Name | IN, 1 }, { Stat | OUT, 2 }, 280 { Atflags, 3 } } }, 281 { .name = "fstatfs", .ret_type = 1, .nargs = 2, 282 .args = { { Int, 0 }, { StatFs | OUT, 1 } } }, 283 { .name = "fsync", .ret_type = 1, .nargs = 1, 284 .args = { { Int, 0 } } }, 285 { .name = "ftruncate", .ret_type = 1, .nargs = 2, 286 .args = { { Int | IN, 0 }, { QuadHex | IN, 1 } } }, 287 { .name = "futimens", .ret_type = 1, .nargs = 2, 288 .args = { { Int, 0 }, { Timespec2 | IN, 1 } } }, 289 { .name = "futimes", .ret_type = 1, .nargs = 2, 290 .args = { { Int, 0 }, { Timeval2 | IN, 1 } } }, 291 { .name = "futimesat", .ret_type = 1, .nargs = 3, 292 .args = { { Atfd, 0 }, { Name | IN, 1 }, { Timeval2 | IN, 2 } } }, 293 { .name = "getdirentries", .ret_type = 1, .nargs = 4, 294 .args = { { Int, 0 }, { BinString | OUT, 1 }, { Int, 2 }, 295 { PQuadHex | OUT, 3 } } }, 296 { .name = "getfsstat", .ret_type = 1, .nargs = 3, 297 .args = { { Ptr, 0 }, { Long, 1 }, { Getfsstatmode, 2 } } }, 298 { .name = "getitimer", .ret_type = 1, .nargs = 2, 299 .args = { { Itimerwhich, 0 }, { Itimerval | OUT, 2 } } }, 300 { .name = "getpeername", .ret_type = 1, .nargs = 3, 301 .args = { { Int, 0 }, { Sockaddr | OUT, 1 }, { Ptr | OUT, 2 } } }, 302 { .name = "getpgid", .ret_type = 1, .nargs = 1, 303 .args = { { Int, 0 } } }, 304 { .name = "getpriority", .ret_type = 1, .nargs = 2, 305 .args = { { Priowhich, 0 }, { Int, 1 } } }, 306 { .name = "getrandom", .ret_type = 1, .nargs = 3, 307 .args = { { BinString | OUT, 0 }, { Sizet, 1 }, { UInt, 2 } } }, 308 { .name = "getrlimit", .ret_type = 1, .nargs = 2, 309 .args = { { Resource, 0 }, { Rlimit | OUT, 1 } } }, 310 { .name = "getrusage", .ret_type = 1, .nargs = 2, 311 .args = { { RusageWho, 0 }, { Rusage | OUT, 1 } } }, 312 { .name = "getsid", .ret_type = 1, .nargs = 1, 313 .args = { { Int, 0 } } }, 314 { .name = "getsockname", .ret_type = 1, .nargs = 3, 315 .args = { { Int, 0 }, { Sockaddr | OUT, 1 }, { Ptr | OUT, 2 } } }, 316 { .name = "getsockopt", .ret_type = 1, .nargs = 5, 317 .args = { { Int, 0 }, { Sockoptlevel, 1 }, { Sockoptname, 2 }, 318 { Ptr | OUT, 3 }, { Ptr | OUT, 4 } } }, 319 { .name = "gettimeofday", .ret_type = 1, .nargs = 2, 320 .args = { { Timeval | OUT, 0 }, { Ptr, 1 } } }, 321 { .name = "ioctl", .ret_type = 1, .nargs = 3, 322 .args = { { Int, 0 }, { Ioctl, 1 }, { Ptr, 2 } } }, 323 { .name = "kevent", .ret_type = 1, .nargs = 6, 324 .args = { { Int, 0 }, { Kevent, 1 }, { Int, 2 }, { Kevent | OUT, 3 }, 325 { Int, 4 }, { Timespec, 5 } } }, 326 { .name = "kill", .ret_type = 1, .nargs = 2, 327 .args = { { Int | IN, 0 }, { Signal | IN, 1 } } }, 328 { .name = "kldfind", .ret_type = 1, .nargs = 1, 329 .args = { { Name | IN, 0 } } }, 330 { .name = "kldfirstmod", .ret_type = 1, .nargs = 1, 331 .args = { { Int, 0 } } }, 332 { .name = "kldload", .ret_type = 1, .nargs = 1, 333 .args = { { Name | IN, 0 } } }, 334 { .name = "kldnext", .ret_type = 1, .nargs = 1, 335 .args = { { Int, 0 } } }, 336 { .name = "kldstat", .ret_type = 1, .nargs = 2, 337 .args = { { Int, 0 }, { Ptr, 1 } } }, 338 { .name = "kldsym", .ret_type = 1, .nargs = 3, 339 .args = { { Int, 0 }, { Kldsymcmd, 1 }, { Ptr, 2 } } }, 340 { .name = "kldunload", .ret_type = 1, .nargs = 1, 341 .args = { { Int, 0 } } }, 342 { .name = "kldunloadf", .ret_type = 1, .nargs = 2, 343 .args = { { Int, 0 }, { Kldunloadflags, 1 } } }, 344 { .name = "kse_release", .ret_type = 0, .nargs = 1, 345 .args = { { Timespec, 0 } } }, 346 { .name = "lchflags", .ret_type = 1, .nargs = 2, 347 .args = { { Name | IN, 0 }, { FileFlags, 1 } } }, 348 { .name = "lchmod", .ret_type = 1, .nargs = 2, 349 .args = { { Name, 0 }, { Octal, 1 } } }, 350 { .name = "lchown", .ret_type = 1, .nargs = 3, 351 .args = { { Name, 0 }, { Int, 1 }, { Int, 2 } } }, 352 { .name = "link", .ret_type = 1, .nargs = 2, 353 .args = { { Name, 0 }, { Name, 1 } } }, 354 { .name = "linkat", .ret_type = 1, .nargs = 5, 355 .args = { { Atfd, 0 }, { Name, 1 }, { Atfd, 2 }, { Name, 3 }, 356 { Atflags, 4 } } }, 357 { .name = "lio_listio", .ret_type = 1, .nargs = 4, 358 .args = { { LioMode, 0 }, { AiocbArray, 1 }, { Int, 2 }, 359 { Sigevent, 3 } } }, 360 { .name = "listen", .ret_type = 1, .nargs = 2, 361 .args = { { Int, 0 }, { Int, 1 } } }, 362 { .name = "lseek", .ret_type = 2, .nargs = 3, 363 .args = { { Int, 0 }, { QuadHex, 1 }, { Whence, 2 } } }, 364 { .name = "lstat", .ret_type = 1, .nargs = 2, 365 .args = { { Name | IN, 0 }, { Stat | OUT, 1 } } }, 366 { .name = "lutimes", .ret_type = 1, .nargs = 2, 367 .args = { { Name | IN, 0 }, { Timeval2 | IN, 1 } } }, 368 { .name = "madvise", .ret_type = 1, .nargs = 3, 369 .args = { { Ptr, 0 }, { Sizet, 1 }, { Madvice, 2 } } }, 370 { .name = "minherit", .ret_type = 1, .nargs = 3, 371 .args = { { Ptr, 0 }, { Sizet, 1 }, { Minherit, 2 } } }, 372 { .name = "mkdir", .ret_type = 1, .nargs = 2, 373 .args = { { Name, 0 }, { Octal, 1 } } }, 374 { .name = "mkdirat", .ret_type = 1, .nargs = 3, 375 .args = { { Atfd, 0 }, { Name, 1 }, { Octal, 2 } } }, 376 { .name = "mkfifo", .ret_type = 1, .nargs = 2, 377 .args = { { Name, 0 }, { Octal, 1 } } }, 378 { .name = "mkfifoat", .ret_type = 1, .nargs = 3, 379 .args = { { Atfd, 0 }, { Name, 1 }, { Octal, 2 } } }, 380 { .name = "mknod", .ret_type = 1, .nargs = 3, 381 .args = { { Name, 0 }, { Octal, 1 }, { Quad, 2 } } }, 382 { .name = "mknodat", .ret_type = 1, .nargs = 4, 383 .args = { { Atfd, 0 }, { Name, 1 }, { Octal, 2 }, { Quad, 3 } } }, 384 { .name = "mlock", .ret_type = 1, .nargs = 2, 385 .args = { { Ptr, 0 }, { Sizet, 1 } } }, 386 { .name = "mlockall", .ret_type = 1, .nargs = 1, 387 .args = { { Mlockall, 0 } } }, 388 { .name = "mmap", .ret_type = 1, .nargs = 6, 389 .args = { { Ptr, 0 }, { Sizet, 1 }, { Mprot, 2 }, { Mmapflags, 3 }, 390 { Int, 4 }, { QuadHex, 5 } } }, 391 { .name = "modfind", .ret_type = 1, .nargs = 1, 392 .args = { { Name | IN, 0 } } }, 393 { .name = "mount", .ret_type = 1, .nargs = 4, 394 .args = { { Name, 0 }, { Name, 1 }, { Mountflags, 2 }, { Ptr, 3 } } }, 395 { .name = "mprotect", .ret_type = 1, .nargs = 3, 396 .args = { { Ptr, 0 }, { Sizet, 1 }, { Mprot, 2 } } }, 397 { .name = "msync", .ret_type = 1, .nargs = 3, 398 .args = { { Ptr, 0 }, { Sizet, 1 }, { Msync, 2 } } }, 399 { .name = "munlock", .ret_type = 1, .nargs = 2, 400 .args = { { Ptr, 0 }, { Sizet, 1 } } }, 401 { .name = "munmap", .ret_type = 1, .nargs = 2, 402 .args = { { Ptr, 0 }, { Sizet, 1 } } }, 403 { .name = "nanosleep", .ret_type = 1, .nargs = 1, 404 .args = { { Timespec, 0 } } }, 405 { .name = "nmount", .ret_type = 1, .nargs = 3, 406 .args = { { Ptr, 0 }, { UInt, 1 }, { Mountflags, 2 } } }, 407 { .name = "open", .ret_type = 1, .nargs = 3, 408 .args = { { Name | IN, 0 }, { Open, 1 }, { Octal, 2 } } }, 409 { .name = "openat", .ret_type = 1, .nargs = 4, 410 .args = { { Atfd, 0 }, { Name | IN, 1 }, { Open, 2 }, 411 { Octal, 3 } } }, 412 { .name = "pathconf", .ret_type = 1, .nargs = 2, 413 .args = { { Name | IN, 0 }, { Pathconf, 1 } } }, 414 { .name = "pipe", .ret_type = 1, .nargs = 1, 415 .args = { { PipeFds | OUT, 0 } } }, 416 { .name = "pipe2", .ret_type = 1, .nargs = 2, 417 .args = { { Ptr, 0 }, { Pipe2, 1 } } }, 418 { .name = "poll", .ret_type = 1, .nargs = 3, 419 .args = { { Pollfd, 0 }, { Int, 1 }, { Int, 2 } } }, 420 { .name = "posix_fadvise", .ret_type = 1, .nargs = 4, 421 .args = { { Int, 0 }, { QuadHex, 1 }, { QuadHex, 2 }, 422 { Fadvice, 3 } } }, 423 { .name = "posix_openpt", .ret_type = 1, .nargs = 1, 424 .args = { { Open, 0 } } }, 425 { .name = "ppoll", .ret_type = 1, .nargs = 4, 426 .args = { { Pollfd, 0 }, { Int, 1 }, { Timespec | IN, 2 }, 427 { Sigset | IN, 3 } } }, 428 { .name = "pread", .ret_type = 1, .nargs = 4, 429 .args = { { Int, 0 }, { BinString | OUT, 1 }, { Sizet, 2 }, 430 { QuadHex, 3 } } }, 431 { .name = "preadv", .ret_type = 1, .nargs = 4, 432 .args = { { Int, 0 }, { Iovec | OUT, 1 }, { Int, 2 }, 433 { QuadHex, 3 } } }, 434 { .name = "procctl", .ret_type = 1, .nargs = 4, 435 .args = { { Idtype, 0 }, { Quad, 1 }, { Procctl, 2 }, { Ptr, 3 } } }, 436 { .name = "ptrace", .ret_type = 1, .nargs = 4, 437 .args = { { Ptraceop, 0 }, { Int, 1 }, { Ptr, 2 }, { Int, 3 } } }, 438 { .name = "pwrite", .ret_type = 1, .nargs = 4, 439 .args = { { Int, 0 }, { BinString | IN, 1 }, { Sizet, 2 }, 440 { QuadHex, 3 } } }, 441 { .name = "pwritev", .ret_type = 1, .nargs = 4, 442 .args = { { Int, 0 }, { Iovec | IN, 1 }, { Int, 2 }, 443 { QuadHex, 3 } } }, 444 { .name = "quotactl", .ret_type = 1, .nargs = 4, 445 .args = { { Name, 0 }, { Quotactlcmd, 1 }, { Int, 2 }, { Ptr, 3 } } }, 446 { .name = "read", .ret_type = 1, .nargs = 3, 447 .args = { { Int, 0 }, { BinString | OUT, 1 }, { Sizet, 2 } } }, 448 { .name = "readlink", .ret_type = 1, .nargs = 3, 449 .args = { { Name, 0 }, { Readlinkres | OUT, 1 }, { Sizet, 2 } } }, 450 { .name = "readlinkat", .ret_type = 1, .nargs = 4, 451 .args = { { Atfd, 0 }, { Name, 1 }, { Readlinkres | OUT, 2 }, 452 { Sizet, 3 } } }, 453 { .name = "readv", .ret_type = 1, .nargs = 3, 454 .args = { { Int, 0 }, { Iovec | OUT, 1 }, { Int, 2 } } }, 455 { .name = "reboot", .ret_type = 1, .nargs = 1, 456 .args = { { Reboothowto, 0 } } }, 457 { .name = "recvfrom", .ret_type = 1, .nargs = 6, 458 .args = { { Int, 0 }, { BinString | OUT, 1 }, { Sizet, 2 }, 459 { Msgflags, 3 }, { Sockaddr | OUT, 4 }, 460 { Ptr | OUT, 5 } } }, 461 { .name = "recvmsg", .ret_type = 1, .nargs = 3, 462 .args = { { Int, 0 }, { Msghdr | OUT, 1 }, { Msgflags, 2 } } }, 463 { .name = "rename", .ret_type = 1, .nargs = 2, 464 .args = { { Name, 0 }, { Name, 1 } } }, 465 { .name = "renameat", .ret_type = 1, .nargs = 4, 466 .args = { { Atfd, 0 }, { Name, 1 }, { Atfd, 2 }, { Name, 3 } } }, 467 { .name = "rfork", .ret_type = 1, .nargs = 1, 468 .args = { { Rforkflags, 0 } } }, 469 { .name = "rmdir", .ret_type = 1, .nargs = 1, 470 .args = { { Name, 0 } } }, 471 { .name = "rtprio", .ret_type = 1, .nargs = 3, 472 .args = { { Rtpriofunc, 0 }, { Int, 1 }, { Ptr, 2 } } }, 473 { .name = "rtprio_thread", .ret_type = 1, .nargs = 3, 474 .args = { { Rtpriofunc, 0 }, { Int, 1 }, { Ptr, 2 } } }, 475 { .name = "sched_get_priority_max", .ret_type = 1, .nargs = 1, 476 .args = { { Schedpolicy, 0 } } }, 477 { .name = "sched_get_priority_min", .ret_type = 1, .nargs = 1, 478 .args = { { Schedpolicy, 0 } } }, 479 { .name = "sched_getparam", .ret_type = 1, .nargs = 2, 480 .args = { { Int, 0 }, { Schedparam | OUT, 1 } } }, 481 { .name = "sched_getscheduler", .ret_type = 1, .nargs = 1, 482 .args = { { Int, 0 } } }, 483 { .name = "sched_rr_get_interval", .ret_type = 1, .nargs = 2, 484 .args = { { Int, 0 }, { Timespec | OUT, 1 } } }, 485 { .name = "sched_setparam", .ret_type = 1, .nargs = 2, 486 .args = { { Int, 0 }, { Schedparam, 1 } } }, 487 { .name = "sched_setscheduler", .ret_type = 1, .nargs = 3, 488 .args = { { Int, 0 }, { Schedpolicy, 1 }, { Schedparam, 2 } } }, 489 { .name = "sctp_generic_recvmsg", .ret_type = 1, .nargs = 7, 490 .args = { { Int, 0 }, { Iovec | OUT, 1 }, { Int, 2 }, 491 { Sockaddr | OUT, 3 }, { Ptr | OUT, 4 }, 492 { Sctpsndrcvinfo | OUT, 5 }, { Ptr | OUT, 6 } } }, 493 { .name = "sctp_generic_sendmsg", .ret_type = 1, .nargs = 7, 494 .args = { { Int, 0 }, { BinString | IN, 1 }, { Int, 2 }, 495 { Sockaddr | IN, 3 }, { Socklent, 4 }, 496 { Sctpsndrcvinfo | IN, 5 }, { Msgflags, 6 } } }, 497 { .name = "sctp_generic_sendmsg_iov", .ret_type = 1, .nargs = 7, 498 .args = { { Int, 0 }, { Iovec | IN, 1 }, { Int, 2 }, 499 { Sockaddr | IN, 3 }, { Socklent, 4 }, 500 { Sctpsndrcvinfo | IN, 5 }, { Msgflags, 6 } } }, 501 { .name = "sendfile", .ret_type = 1, .nargs = 7, 502 .args = { { Int, 0 }, { Int, 1 }, { QuadHex, 2 }, { Sizet, 3 }, 503 { Sendfilehdtr, 4 }, { QuadHex | OUT, 5 }, 504 { Sendfileflags, 6 } } }, 505 { .name = "select", .ret_type = 1, .nargs = 5, 506 .args = { { Int, 0 }, { Fd_set, 1 }, { Fd_set, 2 }, { Fd_set, 3 }, 507 { Timeval, 4 } } }, 508 { .name = "sendmsg", .ret_type = 1, .nargs = 3, 509 .args = { { Int, 0 }, { Msghdr | IN, 1 }, { Msgflags, 2 } } }, 510 { .name = "sendto", .ret_type = 1, .nargs = 6, 511 .args = { { Int, 0 }, { BinString | IN, 1 }, { Sizet, 2 }, 512 { Msgflags, 3 }, { Sockaddr | IN, 4 }, 513 { Socklent | IN, 5 } } }, 514 { .name = "setitimer", .ret_type = 1, .nargs = 3, 515 .args = { { Itimerwhich, 0 }, { Itimerval, 1 }, 516 { Itimerval | OUT, 2 } } }, 517 { .name = "setpriority", .ret_type = 1, .nargs = 3, 518 .args = { { Priowhich, 0 }, { Int, 1 }, { Int, 2 } } }, 519 { .name = "setrlimit", .ret_type = 1, .nargs = 2, 520 .args = { { Resource, 0 }, { Rlimit | IN, 1 } } }, 521 { .name = "setsockopt", .ret_type = 1, .nargs = 5, 522 .args = { { Int, 0 }, { Sockoptlevel, 1 }, { Sockoptname, 2 }, 523 { Ptr | IN, 3 }, { Socklent, 4 } } }, 524 { .name = "shm_open", .ret_type = 1, .nargs = 3, 525 .args = { { ShmName | IN, 0 }, { Open, 1 }, { Octal, 2 } } }, 526 { .name = "shm_open2", .ret_type = 1, .nargs = 5, 527 .args = { { ShmName | IN, 0 }, { Open, 1 }, { Octal, 2 }, 528 { ShmFlags, 3 }, { Name | IN, 4 } } }, 529 { .name = "shm_rename", .ret_type = 1, .nargs = 3, 530 .args = { { Name | IN, 0 }, { Name | IN, 1 }, { Hex, 2 } } }, 531 { .name = "shm_unlink", .ret_type = 1, .nargs = 1, 532 .args = { { Name | IN, 0 } } }, 533 { .name = "shutdown", .ret_type = 1, .nargs = 2, 534 .args = { { Int, 0 }, { Shutdown, 1 } } }, 535 { .name = "sigaction", .ret_type = 1, .nargs = 3, 536 .args = { { Signal, 0 }, { Sigaction | IN, 1 }, 537 { Sigaction | OUT, 2 } } }, 538 { .name = "sigpending", .ret_type = 1, .nargs = 1, 539 .args = { { Sigset | OUT, 0 } } }, 540 { .name = "sigprocmask", .ret_type = 1, .nargs = 3, 541 .args = { { Sigprocmask, 0 }, { Sigset, 1 }, { Sigset | OUT, 2 } } }, 542 { .name = "sigqueue", .ret_type = 1, .nargs = 3, 543 .args = { { Int, 0 }, { Signal, 1 }, { LongHex, 2 } } }, 544 { .name = "sigreturn", .ret_type = 1, .nargs = 1, 545 .args = { { Ptr, 0 } } }, 546 { .name = "sigsuspend", .ret_type = 1, .nargs = 1, 547 .args = { { Sigset | IN, 0 } } }, 548 { .name = "sigtimedwait", .ret_type = 1, .nargs = 3, 549 .args = { { Sigset | IN, 0 }, { Siginfo | OUT, 1 }, 550 { Timespec | IN, 2 } } }, 551 { .name = "sigwait", .ret_type = 1, .nargs = 2, 552 .args = { { Sigset | IN, 0 }, { PSig | OUT, 1 } } }, 553 { .name = "sigwaitinfo", .ret_type = 1, .nargs = 2, 554 .args = { { Sigset | IN, 0 }, { Siginfo | OUT, 1 } } }, 555 { .name = "socket", .ret_type = 1, .nargs = 3, 556 .args = { { Sockdomain, 0 }, { Socktype, 1 }, { Sockprotocol, 2 } } }, 557 { .name = "stat", .ret_type = 1, .nargs = 2, 558 .args = { { Name | IN, 0 }, { Stat | OUT, 1 } } }, 559 { .name = "statfs", .ret_type = 1, .nargs = 2, 560 .args = { { Name | IN, 0 }, { StatFs | OUT, 1 } } }, 561 { .name = "symlink", .ret_type = 1, .nargs = 2, 562 .args = { { Name, 0 }, { Name, 1 } } }, 563 { .name = "symlinkat", .ret_type = 1, .nargs = 3, 564 .args = { { Name, 0 }, { Atfd, 1 }, { Name, 2 } } }, 565 { .name = "sysarch", .ret_type = 1, .nargs = 2, 566 .args = { { Sysarch, 0 }, { Ptr, 1 } } }, 567 { .name = "__sysctl", .ret_type = 1, .nargs = 6, 568 .args = { { Sysctl, 0 }, { Sizet, 1 }, { Ptr, 2 }, { Ptr, 3 }, 569 { Ptr, 4 }, { Sizet, 5 } } }, 570 { .name = "__sysctlbyname", .ret_type = 1, .nargs = 6, 571 .args = { { Name, 0 }, { Sizet, 1 }, { Ptr, 2 }, { Ptr, 3 }, 572 { Ptr, 4}, { Sizet, 5 } } }, 573 { .name = "thr_kill", .ret_type = 1, .nargs = 2, 574 .args = { { Long, 0 }, { Signal, 1 } } }, 575 { .name = "thr_self", .ret_type = 1, .nargs = 1, 576 .args = { { Ptr, 0 } } }, 577 { .name = "thr_set_name", .ret_type = 1, .nargs = 2, 578 .args = { { Long, 0 }, { Name, 1 } } }, 579 { .name = "truncate", .ret_type = 1, .nargs = 2, 580 .args = { { Name | IN, 0 }, { QuadHex | IN, 1 } } }, 581 #if 0 582 /* Does not exist */ 583 { .name = "umount", .ret_type = 1, .nargs = 2, 584 .args = { { Name, 0 }, { Int, 2 } } }, 585 #endif 586 { .name = "unlink", .ret_type = 1, .nargs = 1, 587 .args = { { Name, 0 } } }, 588 { .name = "unlinkat", .ret_type = 1, .nargs = 3, 589 .args = { { Atfd, 0 }, { Name, 1 }, { Atflags, 2 } } }, 590 { .name = "unmount", .ret_type = 1, .nargs = 2, 591 .args = { { Name, 0 }, { Mountflags, 1 } } }, 592 { .name = "utimensat", .ret_type = 1, .nargs = 4, 593 .args = { { Atfd, 0 }, { Name | IN, 1 }, { Timespec2 | IN, 2 }, 594 { Atflags, 3 } } }, 595 { .name = "utimes", .ret_type = 1, .nargs = 2, 596 .args = { { Name | IN, 0 }, { Timeval2 | IN, 1 } } }, 597 { .name = "utrace", .ret_type = 1, .nargs = 1, 598 .args = { { Utrace, 0 } } }, 599 { .name = "wait4", .ret_type = 1, .nargs = 4, 600 .args = { { Int, 0 }, { ExitStatus | OUT, 1 }, { Waitoptions, 2 }, 601 { Rusage | OUT, 3 } } }, 602 { .name = "wait6", .ret_type = 1, .nargs = 6, 603 .args = { { Idtype, 0 }, { Quad, 1 }, { ExitStatus | OUT, 2 }, 604 { Waitoptions, 3 }, { Rusage | OUT, 4 }, 605 { Siginfo | OUT, 5 } } }, 606 { .name = "write", .ret_type = 1, .nargs = 3, 607 .args = { { Int, 0 }, { BinString | IN, 1 }, { Sizet, 2 } } }, 608 { .name = "writev", .ret_type = 1, .nargs = 3, 609 .args = { { Int, 0 }, { Iovec | IN, 1 }, { Int, 2 } } }, 610 611 /* Linux ABI */ 612 { .name = "linux_access", .ret_type = 1, .nargs = 2, 613 .args = { { Name, 0 }, { Accessmode, 1 } } }, 614 { .name = "linux_execve", .ret_type = 1, .nargs = 3, 615 .args = { { Name | IN, 0 }, { ExecArgs | IN, 1 }, 616 { ExecEnv | IN, 2 } } }, 617 { .name = "linux_getitimer", .ret_type = 1, .nargs = 2, 618 .args = { { Itimerwhich, 0 }, { Itimerval | OUT, 2 } } }, 619 { .name = "linux_lseek", .ret_type = 2, .nargs = 3, 620 .args = { { Int, 0 }, { Int, 1 }, { Whence, 2 } } }, 621 { .name = "linux_mkdir", .ret_type = 1, .nargs = 2, 622 .args = { { Name | IN, 0 }, { Int, 1 } } }, 623 { .name = "linux_newfstat", .ret_type = 1, .nargs = 2, 624 .args = { { Int, 0 }, { Ptr | OUT, 1 } } }, 625 { .name = "linux_newstat", .ret_type = 1, .nargs = 2, 626 .args = { { Name | IN, 0 }, { Ptr | OUT, 1 } } }, 627 { .name = "linux_open", .ret_type = 1, .nargs = 3, 628 .args = { { Name, 0 }, { Hex, 1 }, { Octal, 2 } } }, 629 { .name = "linux_readlink", .ret_type = 1, .nargs = 3, 630 .args = { { Name, 0 }, { Name | OUT, 1 }, { Sizet, 2 } } }, 631 { .name = "linux_setitimer", .ret_type = 1, .nargs = 3, 632 .args = { { Itimerwhich, 0 }, { Itimerval, 1 }, 633 { Itimerval | OUT, 2 } } }, 634 { .name = "linux_socketcall", .ret_type = 1, .nargs = 2, 635 .args = { { Int, 0 }, { LinuxSockArgs, 1 } } }, 636 { .name = "linux_stat64", .ret_type = 1, .nargs = 2, 637 .args = { { Name | IN, 0 }, { Ptr | OUT, 1 } } }, 638 }; 639 static STAILQ_HEAD(, syscall) seen_syscalls; 640 641 /* Xlat idea taken from strace */ 642 struct xlat { 643 int val; 644 const char *str; 645 }; 646 647 #define X(a) { a, #a }, 648 #define XEND { 0, NULL } 649 650 static struct xlat poll_flags[] = { 651 X(POLLSTANDARD) X(POLLIN) X(POLLPRI) X(POLLOUT) X(POLLERR) 652 X(POLLHUP) X(POLLNVAL) X(POLLRDNORM) X(POLLRDBAND) 653 X(POLLWRBAND) X(POLLINIGNEOF) X(POLLRDHUP) XEND 654 }; 655 656 static struct xlat sigaction_flags[] = { 657 X(SA_ONSTACK) X(SA_RESTART) X(SA_RESETHAND) X(SA_NOCLDSTOP) 658 X(SA_NODEFER) X(SA_NOCLDWAIT) X(SA_SIGINFO) XEND 659 }; 660 661 static struct xlat linux_socketcall_ops[] = { 662 X(LINUX_SOCKET) X(LINUX_BIND) X(LINUX_CONNECT) X(LINUX_LISTEN) 663 X(LINUX_ACCEPT) X(LINUX_GETSOCKNAME) X(LINUX_GETPEERNAME) 664 X(LINUX_SOCKETPAIR) X(LINUX_SEND) X(LINUX_RECV) X(LINUX_SENDTO) 665 X(LINUX_RECVFROM) X(LINUX_SHUTDOWN) X(LINUX_SETSOCKOPT) 666 X(LINUX_GETSOCKOPT) X(LINUX_SENDMSG) X(LINUX_RECVMSG) 667 XEND 668 }; 669 670 static struct xlat lio_modes[] = { 671 X(LIO_WAIT) X(LIO_NOWAIT) 672 XEND 673 }; 674 675 static struct xlat lio_opcodes[] = { 676 X(LIO_WRITE) X(LIO_READ) X(LIO_READV) X(LIO_WRITEV) X(LIO_NOP) 677 XEND 678 }; 679 680 static struct xlat aio_fsync_ops[] = { 681 X(O_SYNC) 682 XEND 683 }; 684 685 #undef X 686 #undef XEND 687 688 /* 689 * Searches an xlat array for a value, and returns it if found. Otherwise 690 * return a string representation. 691 */ 692 static const char * 693 lookup(struct xlat *xlat, int val, int base) 694 { 695 static char tmp[16]; 696 697 for (; xlat->str != NULL; xlat++) 698 if (xlat->val == val) 699 return (xlat->str); 700 switch (base) { 701 case 8: 702 sprintf(tmp, "0%o", val); 703 break; 704 case 16: 705 sprintf(tmp, "0x%x", val); 706 break; 707 case 10: 708 sprintf(tmp, "%u", val); 709 break; 710 default: 711 errx(1, "Unknown lookup base"); 712 } 713 return (tmp); 714 } 715 716 static const char * 717 xlookup(struct xlat *xlat, int val) 718 { 719 720 return (lookup(xlat, val, 16)); 721 } 722 723 /* 724 * Searches an xlat array containing bitfield values. Remaining bits 725 * set after removing the known ones are printed at the end: 726 * IN|0x400. 727 */ 728 static char * 729 xlookup_bits(struct xlat *xlat, int val) 730 { 731 int len, rem; 732 static char str[512]; 733 734 len = 0; 735 rem = val; 736 for (; xlat->str != NULL; xlat++) { 737 if ((xlat->val & rem) == xlat->val) { 738 /* 739 * Don't print the "all-bits-zero" string unless all 740 * bits are really zero. 741 */ 742 if (xlat->val == 0 && val != 0) 743 continue; 744 len += sprintf(str + len, "%s|", xlat->str); 745 rem &= ~(xlat->val); 746 } 747 } 748 749 /* 750 * If we have leftover bits or didn't match anything, print 751 * the remainder. 752 */ 753 if (rem || len == 0) 754 len += sprintf(str + len, "0x%x", rem); 755 if (len && str[len - 1] == '|') 756 len--; 757 str[len] = 0; 758 return (str); 759 } 760 761 static void 762 print_integer_arg(const char *(*decoder)(int), FILE *fp, int value) 763 { 764 const char *str; 765 766 str = decoder(value); 767 if (str != NULL) 768 fputs(str, fp); 769 else 770 fprintf(fp, "%d", value); 771 } 772 773 static bool 774 print_mask_arg_part(bool (*decoder)(FILE *, int, int *), FILE *fp, int value, 775 int *rem) 776 { 777 778 return (decoder(fp, value, rem)); 779 } 780 781 static void 782 print_mask_arg(bool (*decoder)(FILE *, int, int *), FILE *fp, int value) 783 { 784 int rem; 785 786 if (!print_mask_arg_part(decoder, fp, value, &rem)) 787 fprintf(fp, "0x%x", rem); 788 else if (rem != 0) 789 fprintf(fp, "|0x%x", rem); 790 } 791 792 static void 793 print_mask_arg32(bool (*decoder)(FILE *, uint32_t, uint32_t *), FILE *fp, 794 uint32_t value) 795 { 796 uint32_t rem; 797 798 if (!decoder(fp, value, &rem)) 799 fprintf(fp, "0x%x", rem); 800 else if (rem != 0) 801 fprintf(fp, "|0x%x", rem); 802 } 803 804 /* 805 * Add argument padding to subsequent system calls after Quad 806 * syscall arguments as needed. This used to be done by hand in the 807 * decoded_syscalls table which was ugly and error prone. It is 808 * simpler to do the fixup of offsets at initialization time than when 809 * decoding arguments. 810 */ 811 static void 812 quad_fixup(struct syscall_decode *sc) 813 { 814 int offset, prev; 815 u_int i; 816 817 offset = 0; 818 prev = -1; 819 for (i = 0; i < sc->nargs; i++) { 820 /* This arg type is a dummy that doesn't use offset. */ 821 if ((sc->args[i].type & ARG_MASK) == PipeFds) 822 continue; 823 824 assert(prev < sc->args[i].offset); 825 prev = sc->args[i].offset; 826 sc->args[i].offset += offset; 827 switch (sc->args[i].type & ARG_MASK) { 828 case Quad: 829 case QuadHex: 830 #if defined(__powerpc__) || defined(__arm__) || defined(__aarch64__) 831 /* 832 * 64-bit arguments on 32-bit powerpc and arm must be 833 * 64-bit aligned. If the current offset is 834 * not aligned, the calling convention inserts 835 * a 32-bit pad argument that should be skipped. 836 */ 837 if (sc->args[i].offset % 2 == 1) { 838 sc->args[i].offset++; 839 offset++; 840 } 841 #endif 842 offset++; 843 default: 844 break; 845 } 846 } 847 } 848 849 static struct syscall * 850 find_syscall(struct procabi *abi, u_int number) 851 { 852 struct extra_syscall *es; 853 854 if (number < nitems(abi->syscalls)) 855 return (abi->syscalls[number]); 856 STAILQ_FOREACH(es, &abi->extra_syscalls, entries) { 857 if (es->number == number) 858 return (es->sc); 859 } 860 return (NULL); 861 } 862 863 static void 864 add_syscall(struct procabi *abi, u_int number, struct syscall *sc) 865 { 866 struct extra_syscall *es; 867 868 /* 869 * quad_fixup() is currently needed for all 32-bit ABIs. 870 * TODO: This should probably be a function pointer inside struct 871 * procabi instead. 872 */ 873 if (abi->pointer_size == 4) 874 quad_fixup(&sc->decode); 875 876 if (number < nitems(abi->syscalls)) { 877 assert(abi->syscalls[number] == NULL); 878 abi->syscalls[number] = sc; 879 } else { 880 es = malloc(sizeof(*es)); 881 es->sc = sc; 882 es->number = number; 883 STAILQ_INSERT_TAIL(&abi->extra_syscalls, es, entries); 884 } 885 886 STAILQ_INSERT_HEAD(&seen_syscalls, sc, entries); 887 } 888 889 /* 890 * If/when the list gets big, it might be desirable to do it 891 * as a hash table or binary search. 892 */ 893 struct syscall * 894 get_syscall(struct threadinfo *t, u_int number, u_int nargs) 895 { 896 struct syscall *sc; 897 struct procabi *procabi; 898 const char *sysdecode_name; 899 const char *lookup_name; 900 const char *name; 901 u_int i; 902 903 procabi = t->proc->abi; 904 sc = find_syscall(procabi, number); 905 if (sc != NULL) 906 return (sc); 907 908 /* Memory is not explicitly deallocated, it's released on exit(). */ 909 sysdecode_name = sysdecode_syscallname(procabi->abi, number); 910 if (sysdecode_name == NULL) 911 asprintf(__DECONST(char **, &name), "#%d", number); 912 else 913 name = sysdecode_name; 914 915 sc = calloc(1, sizeof(*sc)); 916 sc->name = name; 917 918 /* Also decode compat syscalls arguments by stripping the prefix. */ 919 lookup_name = name; 920 if (procabi->compat_prefix != NULL && strncmp(procabi->compat_prefix, 921 name, strlen(procabi->compat_prefix)) == 0) 922 lookup_name += strlen(procabi->compat_prefix); 923 924 for (i = 0; i < nitems(decoded_syscalls); i++) { 925 if (strcmp(lookup_name, decoded_syscalls[i].name) == 0) { 926 sc->decode = decoded_syscalls[i]; 927 add_syscall(t->proc->abi, number, sc); 928 return (sc); 929 } 930 } 931 932 /* It is unknown. Add it into the list. */ 933 #if DEBUG 934 fprintf(stderr, "unknown syscall %s -- setting args to %d\n", name, 935 nargs); 936 #endif 937 sc->unknown = sysdecode_name == NULL; 938 sc->decode.ret_type = 1; /* Assume 1 return value. */ 939 sc->decode.nargs = nargs; 940 for (i = 0; i < nargs; i++) { 941 sc->decode.args[i].offset = i; 942 /* Treat all unknown arguments as LongHex. */ 943 sc->decode.args[i].type = LongHex; 944 } 945 add_syscall(t->proc->abi, number, sc); 946 return (sc); 947 } 948 949 /* 950 * Copy a fixed amount of bytes from the process. 951 */ 952 static int 953 get_struct(pid_t pid, psaddr_t offset, void *buf, size_t len) 954 { 955 struct ptrace_io_desc iorequest; 956 957 iorequest.piod_op = PIOD_READ_D; 958 iorequest.piod_offs = (void *)(uintptr_t)offset; 959 iorequest.piod_addr = buf; 960 iorequest.piod_len = len; 961 if (ptrace(PT_IO, pid, (caddr_t)&iorequest, 0) < 0) 962 return (-1); 963 return (0); 964 } 965 966 #define MAXSIZE 4096 967 968 /* 969 * Copy a string from the process. Note that it is 970 * expected to be a C string, but if max is set, it will 971 * only get that much. 972 */ 973 static char * 974 get_string(pid_t pid, psaddr_t addr, int max) 975 { 976 struct ptrace_io_desc iorequest; 977 char *buf, *nbuf; 978 size_t offset, size, totalsize; 979 980 offset = 0; 981 if (max) 982 size = max + 1; 983 else { 984 /* Read up to the end of the current page. */ 985 size = PAGE_SIZE - (addr % PAGE_SIZE); 986 if (size > MAXSIZE) 987 size = MAXSIZE; 988 } 989 totalsize = size; 990 buf = malloc(totalsize); 991 if (buf == NULL) 992 return (NULL); 993 for (;;) { 994 iorequest.piod_op = PIOD_READ_D; 995 iorequest.piod_offs = (void *)((uintptr_t)addr + offset); 996 iorequest.piod_addr = buf + offset; 997 iorequest.piod_len = size; 998 if (ptrace(PT_IO, pid, (caddr_t)&iorequest, 0) < 0) { 999 free(buf); 1000 return (NULL); 1001 } 1002 if (memchr(buf + offset, '\0', size) != NULL) 1003 return (buf); 1004 offset += size; 1005 if (totalsize < MAXSIZE && max == 0) { 1006 size = MAXSIZE - totalsize; 1007 if (size > PAGE_SIZE) 1008 size = PAGE_SIZE; 1009 nbuf = realloc(buf, totalsize + size); 1010 if (nbuf == NULL) { 1011 buf[totalsize - 1] = '\0'; 1012 return (buf); 1013 } 1014 buf = nbuf; 1015 totalsize += size; 1016 } else { 1017 buf[totalsize - 1] = '\0'; 1018 return (buf); 1019 } 1020 } 1021 } 1022 1023 static const char * 1024 strsig2(int sig) 1025 { 1026 static char tmp[32]; 1027 const char *signame; 1028 1029 signame = sysdecode_signal(sig); 1030 if (signame == NULL) { 1031 snprintf(tmp, sizeof(tmp), "%d", sig); 1032 signame = tmp; 1033 } 1034 return (signame); 1035 } 1036 1037 static void 1038 print_kevent(FILE *fp, struct kevent *ke) 1039 { 1040 1041 switch (ke->filter) { 1042 case EVFILT_READ: 1043 case EVFILT_WRITE: 1044 case EVFILT_VNODE: 1045 case EVFILT_PROC: 1046 case EVFILT_TIMER: 1047 case EVFILT_PROCDESC: 1048 case EVFILT_EMPTY: 1049 fprintf(fp, "%ju", (uintmax_t)ke->ident); 1050 break; 1051 case EVFILT_SIGNAL: 1052 fputs(strsig2(ke->ident), fp); 1053 break; 1054 default: 1055 fprintf(fp, "%p", (void *)ke->ident); 1056 } 1057 fprintf(fp, ","); 1058 print_integer_arg(sysdecode_kevent_filter, fp, ke->filter); 1059 fprintf(fp, ","); 1060 print_mask_arg(sysdecode_kevent_flags, fp, ke->flags); 1061 fprintf(fp, ","); 1062 sysdecode_kevent_fflags(fp, ke->filter, ke->fflags, 16); 1063 fprintf(fp, ",%#jx,%p", (uintmax_t)ke->data, ke->udata); 1064 } 1065 1066 static void 1067 print_utrace(FILE *fp, void *utrace_addr, size_t len) 1068 { 1069 unsigned char *utrace_buffer; 1070 1071 fprintf(fp, "{ "); 1072 if (sysdecode_utrace(fp, utrace_addr, len)) { 1073 fprintf(fp, " }"); 1074 return; 1075 } 1076 1077 utrace_buffer = utrace_addr; 1078 fprintf(fp, "%zu:", len); 1079 while (len--) 1080 fprintf(fp, " %02x", *utrace_buffer++); 1081 fprintf(fp, " }"); 1082 } 1083 1084 static void 1085 print_pointer(FILE *fp, uintptr_t arg) 1086 { 1087 1088 fprintf(fp, "%p", (void *)arg); 1089 } 1090 1091 static void 1092 print_sockaddr(FILE *fp, struct trussinfo *trussinfo, uintptr_t arg, 1093 socklen_t len) 1094 { 1095 char addr[64]; 1096 struct sockaddr_in *lsin; 1097 struct sockaddr_in6 *lsin6; 1098 struct sockaddr_un *sun; 1099 struct sockaddr *sa; 1100 u_char *q; 1101 pid_t pid = trussinfo->curthread->proc->pid; 1102 1103 if (arg == 0) { 1104 fputs("NULL", fp); 1105 return; 1106 } 1107 /* If the length is too small, just bail. */ 1108 if (len < sizeof(*sa)) { 1109 print_pointer(fp, arg); 1110 return; 1111 } 1112 1113 sa = calloc(1, len); 1114 if (get_struct(pid, arg, sa, len) == -1) { 1115 free(sa); 1116 print_pointer(fp, arg); 1117 return; 1118 } 1119 1120 switch (sa->sa_family) { 1121 case AF_INET: 1122 if (len < sizeof(*lsin)) 1123 goto sockaddr_short; 1124 lsin = (struct sockaddr_in *)(void *)sa; 1125 inet_ntop(AF_INET, &lsin->sin_addr, addr, sizeof(addr)); 1126 fprintf(fp, "{ AF_INET %s:%d }", addr, 1127 htons(lsin->sin_port)); 1128 break; 1129 case AF_INET6: 1130 if (len < sizeof(*lsin6)) 1131 goto sockaddr_short; 1132 lsin6 = (struct sockaddr_in6 *)(void *)sa; 1133 inet_ntop(AF_INET6, &lsin6->sin6_addr, addr, 1134 sizeof(addr)); 1135 fprintf(fp, "{ AF_INET6 [%s]:%d }", addr, 1136 htons(lsin6->sin6_port)); 1137 break; 1138 case AF_UNIX: 1139 sun = (struct sockaddr_un *)sa; 1140 fprintf(fp, "{ AF_UNIX \"%.*s\" }", 1141 (int)(len - offsetof(struct sockaddr_un, sun_path)), 1142 sun->sun_path); 1143 break; 1144 default: 1145 sockaddr_short: 1146 fprintf(fp, 1147 "{ sa_len = %d, sa_family = %d, sa_data = {", 1148 (int)sa->sa_len, (int)sa->sa_family); 1149 for (q = (u_char *)sa->sa_data; 1150 q < (u_char *)sa + len; q++) 1151 fprintf(fp, "%s 0x%02x", 1152 q == (u_char *)sa->sa_data ? "" : ",", 1153 *q); 1154 fputs(" } }", fp); 1155 } 1156 free(sa); 1157 } 1158 1159 #define IOV_LIMIT 16 1160 1161 static void 1162 print_iovec(FILE *fp, struct trussinfo *trussinfo, uintptr_t arg, int iovcnt) 1163 { 1164 struct iovec iov[IOV_LIMIT]; 1165 size_t max_string = trussinfo->strsize; 1166 char tmp2[max_string + 1], *tmp3; 1167 size_t len; 1168 pid_t pid = trussinfo->curthread->proc->pid; 1169 int i; 1170 bool buf_truncated, iov_truncated; 1171 1172 if (iovcnt <= 0) { 1173 print_pointer(fp, arg); 1174 return; 1175 } 1176 if (iovcnt > IOV_LIMIT) { 1177 iovcnt = IOV_LIMIT; 1178 iov_truncated = true; 1179 } else { 1180 iov_truncated = false; 1181 } 1182 if (get_struct(pid, arg, &iov, iovcnt * sizeof(struct iovec)) == -1) { 1183 print_pointer(fp, arg); 1184 return; 1185 } 1186 1187 fputs("[", fp); 1188 for (i = 0; i < iovcnt; i++) { 1189 len = iov[i].iov_len; 1190 if (len > max_string) { 1191 len = max_string; 1192 buf_truncated = true; 1193 } else { 1194 buf_truncated = false; 1195 } 1196 fprintf(fp, "%s{", (i > 0) ? "," : ""); 1197 if (len && get_struct(pid, (uintptr_t)iov[i].iov_base, &tmp2, len) != -1) { 1198 tmp3 = malloc(len * 4 + 1); 1199 while (len) { 1200 if (strvisx(tmp3, tmp2, len, 1201 VIS_CSTYLE|VIS_TAB|VIS_NL) <= 1202 (int)max_string) 1203 break; 1204 len--; 1205 buf_truncated = true; 1206 } 1207 fprintf(fp, "\"%s\"%s", tmp3, 1208 buf_truncated ? "..." : ""); 1209 free(tmp3); 1210 } else { 1211 print_pointer(fp, (uintptr_t)iov[i].iov_base); 1212 } 1213 fprintf(fp, ",%zu}", iov[i].iov_len); 1214 } 1215 fprintf(fp, "%s%s", iov_truncated ? ",..." : "", "]"); 1216 } 1217 1218 static void 1219 print_sigval(FILE *fp, union sigval *sv) 1220 { 1221 fprintf(fp, "{ %d, %p }", sv->sival_int, sv->sival_ptr); 1222 } 1223 1224 static void 1225 print_sigevent(FILE *fp, struct sigevent *se) 1226 { 1227 fputs("{ sigev_notify=", fp); 1228 switch (se->sigev_notify) { 1229 case SIGEV_NONE: 1230 fputs("SIGEV_NONE", fp); 1231 break; 1232 case SIGEV_SIGNAL: 1233 fprintf(fp, "SIGEV_SIGNAL, sigev_signo=%s, sigev_value=", 1234 strsig2(se->sigev_signo)); 1235 print_sigval(fp, &se->sigev_value); 1236 break; 1237 case SIGEV_THREAD: 1238 fputs("SIGEV_THREAD, sigev_value=", fp); 1239 print_sigval(fp, &se->sigev_value); 1240 break; 1241 case SIGEV_KEVENT: 1242 fprintf(fp, "SIGEV_KEVENT, sigev_notify_kqueue=%d, sigev_notify_kevent_flags=", 1243 se->sigev_notify_kqueue); 1244 print_mask_arg(sysdecode_kevent_flags, fp, se->sigev_notify_kevent_flags); 1245 break; 1246 case SIGEV_THREAD_ID: 1247 fprintf(fp, "SIGEV_THREAD_ID, sigev_notify_thread_id=%d, sigev_signo=%s, sigev_value=", 1248 se->sigev_notify_thread_id, strsig2(se->sigev_signo)); 1249 print_sigval(fp, &se->sigev_value); 1250 break; 1251 default: 1252 fprintf(fp, "%d", se->sigev_notify); 1253 break; 1254 } 1255 fputs(" }", fp); 1256 } 1257 1258 static void 1259 print_aiocb(FILE *fp, struct aiocb *cb) 1260 { 1261 fprintf(fp, "{ %d,%jd,%p,%zu,%s,", 1262 cb->aio_fildes, 1263 cb->aio_offset, 1264 cb->aio_buf, 1265 cb->aio_nbytes, 1266 xlookup(lio_opcodes, cb->aio_lio_opcode)); 1267 print_sigevent(fp, &cb->aio_sigevent); 1268 fputs(" }", fp); 1269 } 1270 1271 static void 1272 print_gen_cmsg(FILE *fp, struct cmsghdr *cmsghdr) 1273 { 1274 u_char *q; 1275 1276 fputs("{", fp); 1277 for (q = CMSG_DATA(cmsghdr); 1278 q < (u_char *)cmsghdr + cmsghdr->cmsg_len; q++) { 1279 fprintf(fp, "%s0x%02x", q == CMSG_DATA(cmsghdr) ? "" : ",", *q); 1280 } 1281 fputs("}", fp); 1282 } 1283 1284 static void 1285 print_sctp_initmsg(FILE *fp, struct sctp_initmsg *init) 1286 { 1287 fprintf(fp, "{out=%u,", init->sinit_num_ostreams); 1288 fprintf(fp, "in=%u,", init->sinit_max_instreams); 1289 fprintf(fp, "max_rtx=%u,", init->sinit_max_attempts); 1290 fprintf(fp, "max_rto=%u}", init->sinit_max_init_timeo); 1291 } 1292 1293 static void 1294 print_sctp_sndrcvinfo(FILE *fp, bool receive, struct sctp_sndrcvinfo *info) 1295 { 1296 fprintf(fp, "{sid=%u,", info->sinfo_stream); 1297 if (receive) { 1298 fprintf(fp, "ssn=%u,", info->sinfo_ssn); 1299 } 1300 fputs("flgs=", fp); 1301 sysdecode_sctp_sinfo_flags(fp, info->sinfo_flags); 1302 fprintf(fp, ",ppid=%u,", ntohl(info->sinfo_ppid)); 1303 if (!receive) { 1304 fprintf(fp, "ctx=%u,", info->sinfo_context); 1305 fprintf(fp, "ttl=%u,", info->sinfo_timetolive); 1306 } 1307 if (receive) { 1308 fprintf(fp, "tsn=%u,", info->sinfo_tsn); 1309 fprintf(fp, "cumtsn=%u,", info->sinfo_cumtsn); 1310 } 1311 fprintf(fp, "id=%u}", info->sinfo_assoc_id); 1312 } 1313 1314 static void 1315 print_sctp_sndinfo(FILE *fp, struct sctp_sndinfo *info) 1316 { 1317 fprintf(fp, "{sid=%u,", info->snd_sid); 1318 fputs("flgs=", fp); 1319 print_mask_arg(sysdecode_sctp_snd_flags, fp, info->snd_flags); 1320 fprintf(fp, ",ppid=%u,", ntohl(info->snd_ppid)); 1321 fprintf(fp, "ctx=%u,", info->snd_context); 1322 fprintf(fp, "id=%u}", info->snd_assoc_id); 1323 } 1324 1325 static void 1326 print_sctp_rcvinfo(FILE *fp, struct sctp_rcvinfo *info) 1327 { 1328 fprintf(fp, "{sid=%u,", info->rcv_sid); 1329 fprintf(fp, "ssn=%u,", info->rcv_ssn); 1330 fputs("flgs=", fp); 1331 print_mask_arg(sysdecode_sctp_rcv_flags, fp, info->rcv_flags); 1332 fprintf(fp, ",ppid=%u,", ntohl(info->rcv_ppid)); 1333 fprintf(fp, "tsn=%u,", info->rcv_tsn); 1334 fprintf(fp, "cumtsn=%u,", info->rcv_cumtsn); 1335 fprintf(fp, "ctx=%u,", info->rcv_context); 1336 fprintf(fp, "id=%u}", info->rcv_assoc_id); 1337 } 1338 1339 static void 1340 print_sctp_nxtinfo(FILE *fp, struct sctp_nxtinfo *info) 1341 { 1342 fprintf(fp, "{sid=%u,", info->nxt_sid); 1343 fputs("flgs=", fp); 1344 print_mask_arg(sysdecode_sctp_nxt_flags, fp, info->nxt_flags); 1345 fprintf(fp, ",ppid=%u,", ntohl(info->nxt_ppid)); 1346 fprintf(fp, "len=%u,", info->nxt_length); 1347 fprintf(fp, "id=%u}", info->nxt_assoc_id); 1348 } 1349 1350 static void 1351 print_sctp_prinfo(FILE *fp, struct sctp_prinfo *info) 1352 { 1353 fputs("{pol=", fp); 1354 print_integer_arg(sysdecode_sctp_pr_policy, fp, info->pr_policy); 1355 fprintf(fp, ",val=%u}", info->pr_value); 1356 } 1357 1358 static void 1359 print_sctp_authinfo(FILE *fp, struct sctp_authinfo *info) 1360 { 1361 fprintf(fp, "{num=%u}", info->auth_keynumber); 1362 } 1363 1364 static void 1365 print_sctp_ipv4_addr(FILE *fp, struct in_addr *addr) 1366 { 1367 char buf[INET_ADDRSTRLEN]; 1368 const char *s; 1369 1370 s = inet_ntop(AF_INET, addr, buf, INET_ADDRSTRLEN); 1371 if (s != NULL) 1372 fprintf(fp, "{addr=%s}", s); 1373 else 1374 fputs("{addr=???}", fp); 1375 } 1376 1377 static void 1378 print_sctp_ipv6_addr(FILE *fp, struct in6_addr *addr) 1379 { 1380 char buf[INET6_ADDRSTRLEN]; 1381 const char *s; 1382 1383 s = inet_ntop(AF_INET6, addr, buf, INET6_ADDRSTRLEN); 1384 if (s != NULL) 1385 fprintf(fp, "{addr=%s}", s); 1386 else 1387 fputs("{addr=???}", fp); 1388 } 1389 1390 static void 1391 print_sctp_cmsg(FILE *fp, bool receive, struct cmsghdr *cmsghdr) 1392 { 1393 void *data; 1394 socklen_t len; 1395 1396 len = cmsghdr->cmsg_len; 1397 data = CMSG_DATA(cmsghdr); 1398 switch (cmsghdr->cmsg_type) { 1399 case SCTP_INIT: 1400 if (len == CMSG_LEN(sizeof(struct sctp_initmsg))) 1401 print_sctp_initmsg(fp, (struct sctp_initmsg *)data); 1402 else 1403 print_gen_cmsg(fp, cmsghdr); 1404 break; 1405 case SCTP_SNDRCV: 1406 if (len == CMSG_LEN(sizeof(struct sctp_sndrcvinfo))) 1407 print_sctp_sndrcvinfo(fp, receive, 1408 (struct sctp_sndrcvinfo *)data); 1409 else 1410 print_gen_cmsg(fp, cmsghdr); 1411 break; 1412 #if 0 1413 case SCTP_EXTRCV: 1414 if (len == CMSG_LEN(sizeof(struct sctp_extrcvinfo))) 1415 print_sctp_extrcvinfo(fp, 1416 (struct sctp_extrcvinfo *)data); 1417 else 1418 print_gen_cmsg(fp, cmsghdr); 1419 break; 1420 #endif 1421 case SCTP_SNDINFO: 1422 if (len == CMSG_LEN(sizeof(struct sctp_sndinfo))) 1423 print_sctp_sndinfo(fp, (struct sctp_sndinfo *)data); 1424 else 1425 print_gen_cmsg(fp, cmsghdr); 1426 break; 1427 case SCTP_RCVINFO: 1428 if (len == CMSG_LEN(sizeof(struct sctp_rcvinfo))) 1429 print_sctp_rcvinfo(fp, (struct sctp_rcvinfo *)data); 1430 else 1431 print_gen_cmsg(fp, cmsghdr); 1432 break; 1433 case SCTP_NXTINFO: 1434 if (len == CMSG_LEN(sizeof(struct sctp_nxtinfo))) 1435 print_sctp_nxtinfo(fp, (struct sctp_nxtinfo *)data); 1436 else 1437 print_gen_cmsg(fp, cmsghdr); 1438 break; 1439 case SCTP_PRINFO: 1440 if (len == CMSG_LEN(sizeof(struct sctp_prinfo))) 1441 print_sctp_prinfo(fp, (struct sctp_prinfo *)data); 1442 else 1443 print_gen_cmsg(fp, cmsghdr); 1444 break; 1445 case SCTP_AUTHINFO: 1446 if (len == CMSG_LEN(sizeof(struct sctp_authinfo))) 1447 print_sctp_authinfo(fp, (struct sctp_authinfo *)data); 1448 else 1449 print_gen_cmsg(fp, cmsghdr); 1450 break; 1451 case SCTP_DSTADDRV4: 1452 if (len == CMSG_LEN(sizeof(struct in_addr))) 1453 print_sctp_ipv4_addr(fp, (struct in_addr *)data); 1454 else 1455 print_gen_cmsg(fp, cmsghdr); 1456 break; 1457 case SCTP_DSTADDRV6: 1458 if (len == CMSG_LEN(sizeof(struct in6_addr))) 1459 print_sctp_ipv6_addr(fp, (struct in6_addr *)data); 1460 else 1461 print_gen_cmsg(fp, cmsghdr); 1462 break; 1463 default: 1464 print_gen_cmsg(fp, cmsghdr); 1465 } 1466 } 1467 1468 static void 1469 print_cmsgs(FILE *fp, pid_t pid, bool receive, struct msghdr *msghdr) 1470 { 1471 struct cmsghdr *cmsghdr; 1472 char *cmsgbuf; 1473 const char *temp; 1474 socklen_t len; 1475 int level, type; 1476 bool first; 1477 1478 len = msghdr->msg_controllen; 1479 if (len == 0) { 1480 fputs("{}", fp); 1481 return; 1482 } 1483 cmsgbuf = calloc(1, len); 1484 if (get_struct(pid, (uintptr_t)msghdr->msg_control, cmsgbuf, len) == -1) { 1485 print_pointer(fp, (uintptr_t)msghdr->msg_control); 1486 free(cmsgbuf); 1487 return; 1488 } 1489 msghdr->msg_control = cmsgbuf; 1490 first = true; 1491 fputs("{", fp); 1492 for (cmsghdr = CMSG_FIRSTHDR(msghdr); 1493 cmsghdr != NULL; 1494 cmsghdr = CMSG_NXTHDR(msghdr, cmsghdr)) { 1495 if (cmsghdr->cmsg_len < sizeof(*cmsghdr)) { 1496 fprintf(fp, "{<invalid cmsg, len=%u>}", 1497 cmsghdr->cmsg_len); 1498 if (cmsghdr->cmsg_len == 0) { 1499 /* Avoid looping forever. */ 1500 break; 1501 } 1502 continue; 1503 } 1504 1505 level = cmsghdr->cmsg_level; 1506 type = cmsghdr->cmsg_type; 1507 len = cmsghdr->cmsg_len; 1508 fprintf(fp, "%s{level=", first ? "" : ","); 1509 print_integer_arg(sysdecode_sockopt_level, fp, level); 1510 fputs(",type=", fp); 1511 temp = sysdecode_cmsg_type(level, type); 1512 if (temp) { 1513 fputs(temp, fp); 1514 } else { 1515 fprintf(fp, "%d", type); 1516 } 1517 fputs(",data=", fp); 1518 switch (level) { 1519 case IPPROTO_SCTP: 1520 print_sctp_cmsg(fp, receive, cmsghdr); 1521 break; 1522 default: 1523 print_gen_cmsg(fp, cmsghdr); 1524 break; 1525 } 1526 fputs("}", fp); 1527 first = false; 1528 } 1529 fputs("}", fp); 1530 free(cmsgbuf); 1531 } 1532 1533 static void 1534 print_sysctl_oid(FILE *fp, int *oid, size_t len) 1535 { 1536 size_t i; 1537 bool first; 1538 1539 first = true; 1540 fprintf(fp, "{ "); 1541 for (i = 0; i < len; i++) { 1542 fprintf(fp, "%s%d", first ? "" : ".", oid[i]); 1543 first = false; 1544 } 1545 fprintf(fp, " }"); 1546 } 1547 1548 static void 1549 print_sysctl(FILE *fp, int *oid, size_t len) 1550 { 1551 char name[BUFSIZ]; 1552 int qoid[CTL_MAXNAME + 2]; 1553 size_t i; 1554 1555 qoid[0] = CTL_SYSCTL; 1556 qoid[1] = CTL_SYSCTL_NAME; 1557 memcpy(qoid + 2, oid, len * sizeof(int)); 1558 i = sizeof(name); 1559 if (sysctl(qoid, len + 2, name, &i, 0, 0) == -1) 1560 print_sysctl_oid(fp, oid, len); 1561 else 1562 fprintf(fp, "%s", name); 1563 } 1564 1565 /* 1566 * Convert a 32-bit user-space pointer to psaddr_t by zero-extending. 1567 */ 1568 static psaddr_t 1569 user_ptr32_to_psaddr(int32_t user_pointer) 1570 { 1571 return ((psaddr_t)(uintptr_t)user_pointer); 1572 } 1573 1574 /* 1575 * Converts a syscall argument into a string. Said string is 1576 * allocated via malloc(), so needs to be free()'d. sc is 1577 * a pointer to the syscall description (see above); args is 1578 * an array of all of the system call arguments. 1579 */ 1580 char * 1581 print_arg(struct syscall_arg *sc, syscallarg_t *args, syscallarg_t *retval, 1582 struct trussinfo *trussinfo) 1583 { 1584 FILE *fp; 1585 char *tmp; 1586 size_t tmplen; 1587 pid_t pid; 1588 1589 fp = open_memstream(&tmp, &tmplen); 1590 pid = trussinfo->curthread->proc->pid; 1591 switch (sc->type & ARG_MASK) { 1592 case Hex: 1593 fprintf(fp, "0x%x", (int)args[sc->offset]); 1594 break; 1595 case Octal: 1596 fprintf(fp, "0%o", (int)args[sc->offset]); 1597 break; 1598 case Int: 1599 fprintf(fp, "%d", (int)args[sc->offset]); 1600 break; 1601 case UInt: 1602 fprintf(fp, "%u", (unsigned int)args[sc->offset]); 1603 break; 1604 case PUInt: { 1605 unsigned int val; 1606 1607 if (get_struct(pid, args[sc->offset], &val, 1608 sizeof(val)) == 0) 1609 fprintf(fp, "{ %u }", val); 1610 else 1611 print_pointer(fp, args[sc->offset]); 1612 break; 1613 } 1614 case LongHex: 1615 fprintf(fp, "0x%lx", (long)args[sc->offset]); 1616 break; 1617 case Long: 1618 fprintf(fp, "%ld", (long)args[sc->offset]); 1619 break; 1620 case Sizet: 1621 fprintf(fp, "%zu", (size_t)args[sc->offset]); 1622 break; 1623 case ShmName: 1624 /* Handle special SHM_ANON value. */ 1625 if ((char *)(uintptr_t)args[sc->offset] == SHM_ANON) { 1626 fprintf(fp, "SHM_ANON"); 1627 break; 1628 } 1629 /* FALLTHROUGH */ 1630 case Name: { 1631 /* NULL-terminated string. */ 1632 char *tmp2; 1633 1634 tmp2 = get_string(pid, args[sc->offset], 0); 1635 fprintf(fp, "\"%s\"", tmp2); 1636 free(tmp2); 1637 break; 1638 } 1639 case BinString: { 1640 /* 1641 * Binary block of data that might have printable characters. 1642 * XXX If type|OUT, assume that the length is the syscall's 1643 * return value. Otherwise, assume that the length of the block 1644 * is in the next syscall argument. 1645 */ 1646 int max_string = trussinfo->strsize; 1647 char tmp2[max_string + 1], *tmp3; 1648 int len; 1649 int truncated = 0; 1650 1651 if (sc->type & OUT) 1652 len = retval[0]; 1653 else 1654 len = args[sc->offset + 1]; 1655 1656 /* 1657 * Don't print more than max_string characters, to avoid word 1658 * wrap. If we have to truncate put some ... after the string. 1659 */ 1660 if (len > max_string) { 1661 len = max_string; 1662 truncated = 1; 1663 } 1664 if (len && get_struct(pid, args[sc->offset], &tmp2, len) 1665 != -1) { 1666 tmp3 = malloc(len * 4 + 1); 1667 while (len) { 1668 if (strvisx(tmp3, tmp2, len, 1669 VIS_CSTYLE|VIS_TAB|VIS_NL) <= max_string) 1670 break; 1671 len--; 1672 truncated = 1; 1673 } 1674 fprintf(fp, "\"%s\"%s", tmp3, truncated ? 1675 "..." : ""); 1676 free(tmp3); 1677 } else { 1678 print_pointer(fp, args[sc->offset]); 1679 } 1680 break; 1681 } 1682 case ExecArgs: 1683 case ExecEnv: 1684 case StringArray: { 1685 psaddr_t addr; 1686 union { 1687 int32_t strarray32[PAGE_SIZE / sizeof(int32_t)]; 1688 int64_t strarray64[PAGE_SIZE / sizeof(int64_t)]; 1689 char buf[PAGE_SIZE]; 1690 } u; 1691 char *string; 1692 size_t len; 1693 u_int first, i; 1694 size_t pointer_size = 1695 trussinfo->curthread->proc->abi->pointer_size; 1696 1697 /* 1698 * Only parse argv[] and environment arrays from exec calls 1699 * if requested. 1700 */ 1701 if (((sc->type & ARG_MASK) == ExecArgs && 1702 (trussinfo->flags & EXECVEARGS) == 0) || 1703 ((sc->type & ARG_MASK) == ExecEnv && 1704 (trussinfo->flags & EXECVEENVS) == 0)) { 1705 print_pointer(fp, args[sc->offset]); 1706 break; 1707 } 1708 1709 /* 1710 * Read a page of pointers at a time. Punt if the top-level 1711 * pointer is not aligned. Note that the first read is of 1712 * a partial page. 1713 */ 1714 addr = args[sc->offset]; 1715 if (!__is_aligned(addr, pointer_size)) { 1716 print_pointer(fp, args[sc->offset]); 1717 break; 1718 } 1719 1720 len = PAGE_SIZE - (addr & PAGE_MASK); 1721 if (get_struct(pid, addr, u.buf, len) == -1) { 1722 print_pointer(fp, args[sc->offset]); 1723 break; 1724 } 1725 assert(len > 0); 1726 1727 fputc('[', fp); 1728 first = 1; 1729 i = 0; 1730 for (;;) { 1731 psaddr_t straddr; 1732 if (pointer_size == 4) { 1733 straddr = user_ptr32_to_psaddr(u.strarray32[i]); 1734 } else if (pointer_size == 8) { 1735 straddr = (psaddr_t)u.strarray64[i]; 1736 } else { 1737 errx(1, "Unsupported pointer size: %zu", 1738 pointer_size); 1739 } 1740 1741 /* Stop once we read the first NULL pointer. */ 1742 if (straddr == 0) 1743 break; 1744 string = get_string(pid, straddr, 0); 1745 fprintf(fp, "%s \"%s\"", first ? "" : ",", string); 1746 free(string); 1747 first = 0; 1748 1749 i++; 1750 if (i == len / pointer_size) { 1751 addr += len; 1752 len = PAGE_SIZE; 1753 if (get_struct(pid, addr, u.buf, len) == -1) { 1754 fprintf(fp, ", <inval>"); 1755 break; 1756 } 1757 i = 0; 1758 } 1759 } 1760 fputs(" ]", fp); 1761 break; 1762 } 1763 case Quad: 1764 case QuadHex: { 1765 uint64_t value; 1766 size_t pointer_size = 1767 trussinfo->curthread->proc->abi->pointer_size; 1768 1769 if (pointer_size == 4) { 1770 #if _BYTE_ORDER == _LITTLE_ENDIAN 1771 value = (uint64_t)args[sc->offset + 1] << 32 | 1772 args[sc->offset]; 1773 #else 1774 value = (uint64_t)args[sc->offset] << 32 | 1775 args[sc->offset + 1]; 1776 #endif 1777 } else { 1778 value = (uint64_t)args[sc->offset]; 1779 } 1780 if ((sc->type & ARG_MASK) == Quad) 1781 fprintf(fp, "%jd", (intmax_t)value); 1782 else 1783 fprintf(fp, "0x%jx", (intmax_t)value); 1784 break; 1785 } 1786 case PQuadHex: { 1787 uint64_t val; 1788 1789 if (get_struct(pid, args[sc->offset], &val, 1790 sizeof(val)) == 0) 1791 fprintf(fp, "{ 0x%jx }", (uintmax_t)val); 1792 else 1793 print_pointer(fp, args[sc->offset]); 1794 break; 1795 } 1796 case Ptr: 1797 print_pointer(fp, args[sc->offset]); 1798 break; 1799 case Readlinkres: { 1800 char *tmp2; 1801 1802 if (retval[0] == -1) 1803 break; 1804 tmp2 = get_string(pid, args[sc->offset], retval[0]); 1805 fprintf(fp, "\"%s\"", tmp2); 1806 free(tmp2); 1807 break; 1808 } 1809 case Ioctl: { 1810 const char *temp; 1811 unsigned long cmd; 1812 1813 cmd = args[sc->offset]; 1814 temp = sysdecode_ioctlname(cmd); 1815 if (temp) 1816 fputs(temp, fp); 1817 else { 1818 fprintf(fp, "0x%lx { IO%s%s 0x%lx('%c'), %lu, %lu }", 1819 cmd, cmd & IOC_OUT ? "R" : "", 1820 cmd & IOC_IN ? "W" : "", IOCGROUP(cmd), 1821 isprint(IOCGROUP(cmd)) ? (char)IOCGROUP(cmd) : '?', 1822 cmd & 0xFF, IOCPARM_LEN(cmd)); 1823 } 1824 break; 1825 } 1826 case Timespec: { 1827 struct timespec ts; 1828 1829 if (get_struct(pid, args[sc->offset], &ts, sizeof(ts)) != -1) 1830 fprintf(fp, "{ %jd.%09ld }", (intmax_t)ts.tv_sec, 1831 ts.tv_nsec); 1832 else 1833 print_pointer(fp, args[sc->offset]); 1834 break; 1835 } 1836 case Timespec2: { 1837 struct timespec ts[2]; 1838 const char *sep; 1839 unsigned int i; 1840 1841 if (get_struct(pid, args[sc->offset], &ts, sizeof(ts)) != -1) { 1842 fputs("{ ", fp); 1843 sep = ""; 1844 for (i = 0; i < nitems(ts); i++) { 1845 fputs(sep, fp); 1846 sep = ", "; 1847 switch (ts[i].tv_nsec) { 1848 case UTIME_NOW: 1849 fprintf(fp, "UTIME_NOW"); 1850 break; 1851 case UTIME_OMIT: 1852 fprintf(fp, "UTIME_OMIT"); 1853 break; 1854 default: 1855 fprintf(fp, "%jd.%09ld", 1856 (intmax_t)ts[i].tv_sec, 1857 ts[i].tv_nsec); 1858 break; 1859 } 1860 } 1861 fputs(" }", fp); 1862 } else 1863 print_pointer(fp, args[sc->offset]); 1864 break; 1865 } 1866 case Timeval: { 1867 struct timeval tv; 1868 1869 if (get_struct(pid, args[sc->offset], &tv, sizeof(tv)) != -1) 1870 fprintf(fp, "{ %jd.%06ld }", (intmax_t)tv.tv_sec, 1871 tv.tv_usec); 1872 else 1873 print_pointer(fp, args[sc->offset]); 1874 break; 1875 } 1876 case Timeval2: { 1877 struct timeval tv[2]; 1878 1879 if (get_struct(pid, args[sc->offset], &tv, sizeof(tv)) != -1) 1880 fprintf(fp, "{ %jd.%06ld, %jd.%06ld }", 1881 (intmax_t)tv[0].tv_sec, tv[0].tv_usec, 1882 (intmax_t)tv[1].tv_sec, tv[1].tv_usec); 1883 else 1884 print_pointer(fp, args[sc->offset]); 1885 break; 1886 } 1887 case Itimerval: { 1888 struct itimerval itv; 1889 1890 if (get_struct(pid, args[sc->offset], &itv, sizeof(itv)) != -1) 1891 fprintf(fp, "{ %jd.%06ld, %jd.%06ld }", 1892 (intmax_t)itv.it_interval.tv_sec, 1893 itv.it_interval.tv_usec, 1894 (intmax_t)itv.it_value.tv_sec, 1895 itv.it_value.tv_usec); 1896 else 1897 print_pointer(fp, args[sc->offset]); 1898 break; 1899 } 1900 case LinuxSockArgs: 1901 { 1902 struct linux_socketcall_args largs; 1903 1904 if (get_struct(pid, args[sc->offset], (void *)&largs, 1905 sizeof(largs)) != -1) 1906 fprintf(fp, "{ %s, 0x%lx }", 1907 lookup(linux_socketcall_ops, largs.what, 10), 1908 (long unsigned int)largs.args); 1909 else 1910 print_pointer(fp, args[sc->offset]); 1911 break; 1912 } 1913 case Pollfd: { 1914 /* 1915 * XXX: A Pollfd argument expects the /next/ syscall argument 1916 * to be the number of fds in the array. This matches the poll 1917 * syscall. 1918 */ 1919 struct pollfd *pfd; 1920 int numfds = args[sc->offset + 1]; 1921 size_t bytes = sizeof(struct pollfd) * numfds; 1922 int i; 1923 1924 if ((pfd = malloc(bytes)) == NULL) 1925 err(1, "Cannot malloc %zu bytes for pollfd array", 1926 bytes); 1927 if (get_struct(pid, args[sc->offset], pfd, bytes) != -1) { 1928 fputs("{", fp); 1929 for (i = 0; i < numfds; i++) { 1930 fprintf(fp, " %d/%s", pfd[i].fd, 1931 xlookup_bits(poll_flags, pfd[i].events)); 1932 } 1933 fputs(" }", fp); 1934 } else { 1935 print_pointer(fp, args[sc->offset]); 1936 } 1937 free(pfd); 1938 break; 1939 } 1940 case Fd_set: { 1941 /* 1942 * XXX: A Fd_set argument expects the /first/ syscall argument 1943 * to be the number of fds in the array. This matches the 1944 * select syscall. 1945 */ 1946 fd_set *fds; 1947 int numfds = args[0]; 1948 size_t bytes = _howmany(numfds, _NFDBITS) * _NFDBITS; 1949 int i; 1950 1951 if ((fds = malloc(bytes)) == NULL) 1952 err(1, "Cannot malloc %zu bytes for fd_set array", 1953 bytes); 1954 if (get_struct(pid, args[sc->offset], fds, bytes) != -1) { 1955 fputs("{", fp); 1956 for (i = 0; i < numfds; i++) { 1957 if (FD_ISSET(i, fds)) 1958 fprintf(fp, " %d", i); 1959 } 1960 fputs(" }", fp); 1961 } else 1962 print_pointer(fp, args[sc->offset]); 1963 free(fds); 1964 break; 1965 } 1966 case Signal: 1967 fputs(strsig2(args[sc->offset]), fp); 1968 break; 1969 case Sigset: { 1970 sigset_t ss; 1971 int i, first; 1972 1973 if (get_struct(pid, args[sc->offset], (void *)&ss, 1974 sizeof(ss)) == -1) { 1975 print_pointer(fp, args[sc->offset]); 1976 break; 1977 } 1978 fputs("{ ", fp); 1979 first = 1; 1980 for (i = 1; i < sys_nsig; i++) { 1981 if (sigismember(&ss, i)) { 1982 fprintf(fp, "%s%s", !first ? "|" : "", 1983 strsig2(i)); 1984 first = 0; 1985 } 1986 } 1987 if (!first) 1988 fputc(' ', fp); 1989 fputc('}', fp); 1990 break; 1991 } 1992 case Sigprocmask: 1993 print_integer_arg(sysdecode_sigprocmask_how, fp, 1994 args[sc->offset]); 1995 break; 1996 case Fcntlflag: 1997 /* XXX: Output depends on the value of the previous argument. */ 1998 if (sysdecode_fcntl_arg_p(args[sc->offset - 1])) 1999 sysdecode_fcntl_arg(fp, args[sc->offset - 1], 2000 args[sc->offset], 16); 2001 break; 2002 case Open: 2003 print_mask_arg(sysdecode_open_flags, fp, args[sc->offset]); 2004 break; 2005 case Fcntl: 2006 print_integer_arg(sysdecode_fcntl_cmd, fp, args[sc->offset]); 2007 break; 2008 case Closerangeflags: 2009 print_mask_arg(sysdecode_close_range_flags, fp, args[sc->offset]); 2010 break; 2011 case Mprot: 2012 print_mask_arg(sysdecode_mmap_prot, fp, args[sc->offset]); 2013 break; 2014 case Mmapflags: 2015 print_mask_arg(sysdecode_mmap_flags, fp, args[sc->offset]); 2016 break; 2017 case Whence: 2018 print_integer_arg(sysdecode_whence, fp, args[sc->offset]); 2019 break; 2020 case ShmFlags: 2021 print_mask_arg(sysdecode_shmflags, fp, args[sc->offset]); 2022 break; 2023 case Sockdomain: 2024 print_integer_arg(sysdecode_socketdomain, fp, args[sc->offset]); 2025 break; 2026 case Socktype: 2027 print_mask_arg(sysdecode_socket_type, fp, args[sc->offset]); 2028 break; 2029 case Shutdown: 2030 print_integer_arg(sysdecode_shutdown_how, fp, args[sc->offset]); 2031 break; 2032 case Resource: 2033 print_integer_arg(sysdecode_rlimit, fp, args[sc->offset]); 2034 break; 2035 case RusageWho: 2036 print_integer_arg(sysdecode_getrusage_who, fp, args[sc->offset]); 2037 break; 2038 case Pathconf: 2039 print_integer_arg(sysdecode_pathconf_name, fp, args[sc->offset]); 2040 break; 2041 case Rforkflags: 2042 print_mask_arg(sysdecode_rfork_flags, fp, args[sc->offset]); 2043 break; 2044 case Sockaddr: { 2045 socklen_t len; 2046 2047 if (args[sc->offset] == 0) { 2048 fputs("NULL", fp); 2049 break; 2050 } 2051 2052 /* 2053 * Extract the address length from the next argument. If 2054 * this is an output sockaddr (OUT is set), then the 2055 * next argument is a pointer to a socklen_t. Otherwise 2056 * the next argument contains a socklen_t by value. 2057 */ 2058 if (sc->type & OUT) { 2059 if (get_struct(pid, args[sc->offset + 1], &len, 2060 sizeof(len)) == -1) { 2061 print_pointer(fp, args[sc->offset]); 2062 break; 2063 } 2064 } else 2065 len = args[sc->offset + 1]; 2066 2067 print_sockaddr(fp, trussinfo, args[sc->offset], len); 2068 break; 2069 } 2070 case Sigaction: { 2071 struct sigaction sa; 2072 2073 if (get_struct(pid, args[sc->offset], &sa, sizeof(sa)) != -1) { 2074 fputs("{ ", fp); 2075 if (sa.sa_handler == SIG_DFL) 2076 fputs("SIG_DFL", fp); 2077 else if (sa.sa_handler == SIG_IGN) 2078 fputs("SIG_IGN", fp); 2079 else 2080 fprintf(fp, "%p", sa.sa_handler); 2081 fprintf(fp, " %s ss_t }", 2082 xlookup_bits(sigaction_flags, sa.sa_flags)); 2083 } else 2084 print_pointer(fp, args[sc->offset]); 2085 break; 2086 } 2087 case Sigevent: { 2088 struct sigevent se; 2089 2090 if (get_struct(pid, args[sc->offset], &se, sizeof(se)) != -1) 2091 print_sigevent(fp, &se); 2092 else 2093 print_pointer(fp, args[sc->offset]); 2094 break; 2095 } 2096 case Kevent: { 2097 /* 2098 * XXX XXX: The size of the array is determined by either the 2099 * next syscall argument, or by the syscall return value, 2100 * depending on which argument number we are. This matches the 2101 * kevent syscall, but luckily that's the only syscall that uses 2102 * them. 2103 */ 2104 struct kevent *ke; 2105 int numevents = -1; 2106 size_t bytes; 2107 int i; 2108 2109 if (sc->offset == 1) 2110 numevents = args[sc->offset+1]; 2111 else if (sc->offset == 3 && retval[0] != -1) 2112 numevents = retval[0]; 2113 2114 if (numevents >= 0) { 2115 bytes = sizeof(struct kevent) * numevents; 2116 if ((ke = malloc(bytes)) == NULL) 2117 err(1, 2118 "Cannot malloc %zu bytes for kevent array", 2119 bytes); 2120 } else 2121 ke = NULL; 2122 if (numevents >= 0 && get_struct(pid, args[sc->offset], 2123 ke, bytes) != -1) { 2124 fputc('{', fp); 2125 for (i = 0; i < numevents; i++) { 2126 fputc(' ', fp); 2127 print_kevent(fp, &ke[i]); 2128 } 2129 fputs(" }", fp); 2130 } else { 2131 print_pointer(fp, args[sc->offset]); 2132 } 2133 free(ke); 2134 break; 2135 } 2136 case Kevent11: { 2137 struct freebsd11_kevent *ke11; 2138 struct kevent ke; 2139 int numevents = -1; 2140 size_t bytes; 2141 int i; 2142 2143 if (sc->offset == 1) 2144 numevents = args[sc->offset+1]; 2145 else if (sc->offset == 3 && retval[0] != -1) 2146 numevents = retval[0]; 2147 2148 if (numevents >= 0) { 2149 bytes = sizeof(struct freebsd11_kevent) * numevents; 2150 if ((ke11 = malloc(bytes)) == NULL) 2151 err(1, 2152 "Cannot malloc %zu bytes for kevent array", 2153 bytes); 2154 } else 2155 ke11 = NULL; 2156 memset(&ke, 0, sizeof(ke)); 2157 if (numevents >= 0 && get_struct(pid, args[sc->offset], 2158 ke11, bytes) != -1) { 2159 fputc('{', fp); 2160 for (i = 0; i < numevents; i++) { 2161 fputc(' ', fp); 2162 ke.ident = ke11[i].ident; 2163 ke.filter = ke11[i].filter; 2164 ke.flags = ke11[i].flags; 2165 ke.fflags = ke11[i].fflags; 2166 ke.data = ke11[i].data; 2167 ke.udata = ke11[i].udata; 2168 print_kevent(fp, &ke); 2169 } 2170 fputs(" }", fp); 2171 } else { 2172 print_pointer(fp, args[sc->offset]); 2173 } 2174 free(ke11); 2175 break; 2176 } 2177 case Stat: { 2178 struct stat st; 2179 2180 if (get_struct(pid, args[sc->offset], &st, sizeof(st)) 2181 != -1) { 2182 char mode[12]; 2183 2184 strmode(st.st_mode, mode); 2185 fprintf(fp, 2186 "{ mode=%s,inode=%ju,size=%jd,blksize=%ld }", mode, 2187 (uintmax_t)st.st_ino, (intmax_t)st.st_size, 2188 (long)st.st_blksize); 2189 } else { 2190 print_pointer(fp, args[sc->offset]); 2191 } 2192 break; 2193 } 2194 case Stat11: { 2195 struct freebsd11_stat st; 2196 2197 if (get_struct(pid, args[sc->offset], &st, sizeof(st)) 2198 != -1) { 2199 char mode[12]; 2200 2201 strmode(st.st_mode, mode); 2202 fprintf(fp, 2203 "{ mode=%s,inode=%ju,size=%jd,blksize=%ld }", mode, 2204 (uintmax_t)st.st_ino, (intmax_t)st.st_size, 2205 (long)st.st_blksize); 2206 } else { 2207 print_pointer(fp, args[sc->offset]); 2208 } 2209 break; 2210 } 2211 case StatFs: { 2212 unsigned int i; 2213 struct statfs buf; 2214 2215 if (get_struct(pid, args[sc->offset], &buf, 2216 sizeof(buf)) != -1) { 2217 char fsid[17]; 2218 2219 bzero(fsid, sizeof(fsid)); 2220 if (buf.f_fsid.val[0] != 0 || buf.f_fsid.val[1] != 0) { 2221 for (i = 0; i < sizeof(buf.f_fsid); i++) 2222 snprintf(&fsid[i*2], 2223 sizeof(fsid) - (i*2), "%02x", 2224 ((u_char *)&buf.f_fsid)[i]); 2225 } 2226 fprintf(fp, 2227 "{ fstypename=%s,mntonname=%s,mntfromname=%s," 2228 "fsid=%s }", buf.f_fstypename, buf.f_mntonname, 2229 buf.f_mntfromname, fsid); 2230 } else 2231 print_pointer(fp, args[sc->offset]); 2232 break; 2233 } 2234 2235 case Rusage: { 2236 struct rusage ru; 2237 2238 if (get_struct(pid, args[sc->offset], &ru, sizeof(ru)) 2239 != -1) { 2240 fprintf(fp, 2241 "{ u=%jd.%06ld,s=%jd.%06ld,in=%ld,out=%ld }", 2242 (intmax_t)ru.ru_utime.tv_sec, ru.ru_utime.tv_usec, 2243 (intmax_t)ru.ru_stime.tv_sec, ru.ru_stime.tv_usec, 2244 ru.ru_inblock, ru.ru_oublock); 2245 } else 2246 print_pointer(fp, args[sc->offset]); 2247 break; 2248 } 2249 case Rlimit: { 2250 struct rlimit rl; 2251 2252 if (get_struct(pid, args[sc->offset], &rl, sizeof(rl)) 2253 != -1) { 2254 fprintf(fp, "{ cur=%ju,max=%ju }", 2255 rl.rlim_cur, rl.rlim_max); 2256 } else 2257 print_pointer(fp, args[sc->offset]); 2258 break; 2259 } 2260 case ExitStatus: { 2261 int status; 2262 2263 if (get_struct(pid, args[sc->offset], &status, 2264 sizeof(status)) != -1) { 2265 fputs("{ ", fp); 2266 if (WIFCONTINUED(status)) 2267 fputs("CONTINUED", fp); 2268 else if (WIFEXITED(status)) 2269 fprintf(fp, "EXITED,val=%d", 2270 WEXITSTATUS(status)); 2271 else if (WIFSIGNALED(status)) 2272 fprintf(fp, "SIGNALED,sig=%s%s", 2273 strsig2(WTERMSIG(status)), 2274 WCOREDUMP(status) ? ",cored" : ""); 2275 else 2276 fprintf(fp, "STOPPED,sig=%s", 2277 strsig2(WTERMSIG(status))); 2278 fputs(" }", fp); 2279 } else 2280 print_pointer(fp, args[sc->offset]); 2281 break; 2282 } 2283 case Waitoptions: 2284 print_mask_arg(sysdecode_wait6_options, fp, args[sc->offset]); 2285 break; 2286 case Idtype: 2287 print_integer_arg(sysdecode_idtype, fp, args[sc->offset]); 2288 break; 2289 case Procctl: 2290 print_integer_arg(sysdecode_procctl_cmd, fp, args[sc->offset]); 2291 break; 2292 case Umtxop: { 2293 int rem; 2294 2295 if (print_mask_arg_part(sysdecode_umtx_op_flags, fp, 2296 args[sc->offset], &rem)) 2297 fprintf(fp, "|"); 2298 print_integer_arg(sysdecode_umtx_op, fp, rem); 2299 break; 2300 } 2301 case Atfd: 2302 print_integer_arg(sysdecode_atfd, fp, args[sc->offset]); 2303 break; 2304 case Atflags: 2305 print_mask_arg(sysdecode_atflags, fp, args[sc->offset]); 2306 break; 2307 case Accessmode: 2308 print_mask_arg(sysdecode_access_mode, fp, args[sc->offset]); 2309 break; 2310 case Sysarch: 2311 print_integer_arg(sysdecode_sysarch_number, fp, 2312 args[sc->offset]); 2313 break; 2314 case Sysctl: { 2315 char name[BUFSIZ]; 2316 int oid[CTL_MAXNAME + 2]; 2317 size_t len; 2318 2319 memset(name, 0, sizeof(name)); 2320 len = args[sc->offset + 1]; 2321 if (get_struct(pid, args[sc->offset], oid, 2322 len * sizeof(oid[0])) != -1) { 2323 fprintf(fp, "\""); 2324 if (oid[0] == CTL_SYSCTL) { 2325 fprintf(fp, "sysctl."); 2326 switch (oid[1]) { 2327 case CTL_SYSCTL_DEBUG: 2328 fprintf(fp, "debug"); 2329 break; 2330 case CTL_SYSCTL_NAME: 2331 fprintf(fp, "name "); 2332 print_sysctl_oid(fp, oid + 2, len - 2); 2333 break; 2334 case CTL_SYSCTL_NEXT: 2335 fprintf(fp, "next"); 2336 break; 2337 case CTL_SYSCTL_NAME2OID: 2338 fprintf(fp, "name2oid %s", 2339 get_string(pid, 2340 args[sc->offset + 4], 2341 args[sc->offset + 5])); 2342 break; 2343 case CTL_SYSCTL_OIDFMT: 2344 fprintf(fp, "oidfmt "); 2345 print_sysctl(fp, oid + 2, len - 2); 2346 break; 2347 case CTL_SYSCTL_OIDDESCR: 2348 fprintf(fp, "oiddescr "); 2349 print_sysctl(fp, oid + 2, len - 2); 2350 break; 2351 case CTL_SYSCTL_OIDLABEL: 2352 fprintf(fp, "oidlabel "); 2353 print_sysctl(fp, oid + 2, len - 2); 2354 break; 2355 case CTL_SYSCTL_NEXTNOSKIP: 2356 fprintf(fp, "nextnoskip"); 2357 break; 2358 default: 2359 print_sysctl(fp, oid + 1, len - 1); 2360 } 2361 } else { 2362 print_sysctl(fp, oid, len); 2363 } 2364 fprintf(fp, "\""); 2365 } 2366 break; 2367 } 2368 case PipeFds: 2369 /* 2370 * The pipe() system call in the kernel returns its 2371 * two file descriptors via return values. However, 2372 * the interface exposed by libc is that pipe() 2373 * accepts a pointer to an array of descriptors. 2374 * Format the output to match the libc API by printing 2375 * the returned file descriptors as a fake argument. 2376 * 2377 * Overwrite the first retval to signal a successful 2378 * return as well. 2379 */ 2380 fprintf(fp, "{ %d, %d }", (int)retval[0], (int)retval[1]); 2381 retval[0] = 0; 2382 break; 2383 case Utrace: { 2384 size_t len; 2385 void *utrace_addr; 2386 2387 len = args[sc->offset + 1]; 2388 utrace_addr = calloc(1, len); 2389 if (get_struct(pid, args[sc->offset], 2390 (void *)utrace_addr, len) != -1) 2391 print_utrace(fp, utrace_addr, len); 2392 else 2393 print_pointer(fp, args[sc->offset]); 2394 free(utrace_addr); 2395 break; 2396 } 2397 case IntArray: { 2398 int descriptors[16]; 2399 unsigned long i, ndescriptors; 2400 bool truncated; 2401 2402 ndescriptors = args[sc->offset + 1]; 2403 truncated = false; 2404 if (ndescriptors > nitems(descriptors)) { 2405 ndescriptors = nitems(descriptors); 2406 truncated = true; 2407 } 2408 if (get_struct(pid, args[sc->offset], 2409 descriptors, ndescriptors * sizeof(descriptors[0])) != -1) { 2410 fprintf(fp, "{"); 2411 for (i = 0; i < ndescriptors; i++) 2412 fprintf(fp, i == 0 ? " %d" : ", %d", 2413 descriptors[i]); 2414 fprintf(fp, truncated ? ", ... }" : " }"); 2415 } else 2416 print_pointer(fp, args[sc->offset]); 2417 break; 2418 } 2419 case Pipe2: 2420 print_mask_arg(sysdecode_pipe2_flags, fp, args[sc->offset]); 2421 break; 2422 case CapFcntlRights: { 2423 uint32_t rights; 2424 2425 if (sc->type & OUT) { 2426 if (get_struct(pid, args[sc->offset], &rights, 2427 sizeof(rights)) == -1) { 2428 print_pointer(fp, args[sc->offset]); 2429 break; 2430 } 2431 } else 2432 rights = args[sc->offset]; 2433 print_mask_arg32(sysdecode_cap_fcntlrights, fp, rights); 2434 break; 2435 } 2436 case Fadvice: 2437 print_integer_arg(sysdecode_fadvice, fp, args[sc->offset]); 2438 break; 2439 case FileFlags: { 2440 fflags_t rem; 2441 2442 if (!sysdecode_fileflags(fp, args[sc->offset], &rem)) 2443 fprintf(fp, "0x%x", rem); 2444 else if (rem != 0) 2445 fprintf(fp, "|0x%x", rem); 2446 break; 2447 } 2448 case Flockop: 2449 print_mask_arg(sysdecode_flock_operation, fp, args[sc->offset]); 2450 break; 2451 case Getfsstatmode: 2452 print_integer_arg(sysdecode_getfsstat_mode, fp, 2453 args[sc->offset]); 2454 break; 2455 case Itimerwhich: 2456 print_integer_arg(sysdecode_itimer, fp, args[sc->offset]); 2457 break; 2458 case Kldsymcmd: 2459 print_integer_arg(sysdecode_kldsym_cmd, fp, args[sc->offset]); 2460 break; 2461 case Kldunloadflags: 2462 print_integer_arg(sysdecode_kldunload_flags, fp, 2463 args[sc->offset]); 2464 break; 2465 case AiofsyncOp: 2466 fputs(xlookup(aio_fsync_ops, args[sc->offset]), fp); 2467 break; 2468 case LioMode: 2469 fputs(xlookup(lio_modes, args[sc->offset]), fp); 2470 break; 2471 case Madvice: 2472 print_integer_arg(sysdecode_madvice, fp, args[sc->offset]); 2473 break; 2474 case Socklent: 2475 fprintf(fp, "%u", (socklen_t)args[sc->offset]); 2476 break; 2477 case Sockprotocol: { 2478 const char *temp; 2479 int domain, protocol; 2480 2481 domain = args[sc->offset - 2]; 2482 protocol = args[sc->offset]; 2483 if (protocol == 0) { 2484 fputs("0", fp); 2485 } else { 2486 temp = sysdecode_socket_protocol(domain, protocol); 2487 if (temp) { 2488 fputs(temp, fp); 2489 } else { 2490 fprintf(fp, "%d", protocol); 2491 } 2492 } 2493 break; 2494 } 2495 case Sockoptlevel: 2496 print_integer_arg(sysdecode_sockopt_level, fp, 2497 args[sc->offset]); 2498 break; 2499 case Sockoptname: { 2500 const char *temp; 2501 int level, name; 2502 2503 level = args[sc->offset - 1]; 2504 name = args[sc->offset]; 2505 temp = sysdecode_sockopt_name(level, name); 2506 if (temp) { 2507 fputs(temp, fp); 2508 } else { 2509 fprintf(fp, "%d", name); 2510 } 2511 break; 2512 } 2513 case Msgflags: 2514 print_mask_arg(sysdecode_msg_flags, fp, args[sc->offset]); 2515 break; 2516 case CapRights: { 2517 cap_rights_t rights; 2518 2519 if (get_struct(pid, args[sc->offset], &rights, 2520 sizeof(rights)) != -1) { 2521 fputs("{ ", fp); 2522 sysdecode_cap_rights(fp, &rights); 2523 fputs(" }", fp); 2524 } else 2525 print_pointer(fp, args[sc->offset]); 2526 break; 2527 } 2528 case Acltype: 2529 print_integer_arg(sysdecode_acltype, fp, args[sc->offset]); 2530 break; 2531 case Extattrnamespace: 2532 print_integer_arg(sysdecode_extattrnamespace, fp, 2533 args[sc->offset]); 2534 break; 2535 case Minherit: 2536 print_integer_arg(sysdecode_minherit_inherit, fp, 2537 args[sc->offset]); 2538 break; 2539 case Mlockall: 2540 print_mask_arg(sysdecode_mlockall_flags, fp, args[sc->offset]); 2541 break; 2542 case Mountflags: 2543 print_mask_arg(sysdecode_mount_flags, fp, args[sc->offset]); 2544 break; 2545 case Msync: 2546 print_mask_arg(sysdecode_msync_flags, fp, args[sc->offset]); 2547 break; 2548 case Priowhich: 2549 print_integer_arg(sysdecode_prio_which, fp, args[sc->offset]); 2550 break; 2551 case Ptraceop: 2552 print_integer_arg(sysdecode_ptrace_request, fp, 2553 args[sc->offset]); 2554 break; 2555 case Sendfileflags: 2556 print_mask_arg(sysdecode_sendfile_flags, fp, args[sc->offset]); 2557 break; 2558 case Sendfilehdtr: { 2559 struct sf_hdtr hdtr; 2560 2561 if (get_struct(pid, args[sc->offset], &hdtr, sizeof(hdtr)) != 2562 -1) { 2563 fprintf(fp, "{"); 2564 print_iovec(fp, trussinfo, (uintptr_t)hdtr.headers, 2565 hdtr.hdr_cnt); 2566 print_iovec(fp, trussinfo, (uintptr_t)hdtr.trailers, 2567 hdtr.trl_cnt); 2568 fprintf(fp, "}"); 2569 } else 2570 print_pointer(fp, args[sc->offset]); 2571 break; 2572 } 2573 case Quotactlcmd: 2574 if (!sysdecode_quotactl_cmd(fp, args[sc->offset])) 2575 fprintf(fp, "%#x", (int)args[sc->offset]); 2576 break; 2577 case Reboothowto: 2578 print_mask_arg(sysdecode_reboot_howto, fp, args[sc->offset]); 2579 break; 2580 case Rtpriofunc: 2581 print_integer_arg(sysdecode_rtprio_function, fp, 2582 args[sc->offset]); 2583 break; 2584 case Schedpolicy: 2585 print_integer_arg(sysdecode_scheduler_policy, fp, 2586 args[sc->offset]); 2587 break; 2588 case Schedparam: { 2589 struct sched_param sp; 2590 2591 if (get_struct(pid, args[sc->offset], &sp, sizeof(sp)) != -1) 2592 fprintf(fp, "{ %d }", sp.sched_priority); 2593 else 2594 print_pointer(fp, args[sc->offset]); 2595 break; 2596 } 2597 case PSig: { 2598 int sig; 2599 2600 if (get_struct(pid, args[sc->offset], &sig, sizeof(sig)) == 0) 2601 fprintf(fp, "{ %s }", strsig2(sig)); 2602 else 2603 print_pointer(fp, args[sc->offset]); 2604 break; 2605 } 2606 case Siginfo: { 2607 siginfo_t si; 2608 2609 if (get_struct(pid, args[sc->offset], &si, sizeof(si)) != -1) { 2610 fprintf(fp, "{ signo=%s", strsig2(si.si_signo)); 2611 decode_siginfo(fp, &si); 2612 fprintf(fp, " }"); 2613 } else 2614 print_pointer(fp, args[sc->offset]); 2615 break; 2616 } 2617 case Iovec: 2618 /* 2619 * Print argument as an array of struct iovec, where the next 2620 * syscall argument is the number of elements of the array. 2621 */ 2622 2623 print_iovec(fp, trussinfo, args[sc->offset], 2624 (int)args[sc->offset + 1]); 2625 break; 2626 case Aiocb: { 2627 struct aiocb cb; 2628 2629 if (get_struct(pid, args[sc->offset], &cb, sizeof(cb)) != -1) 2630 print_aiocb(fp, &cb); 2631 else 2632 print_pointer(fp, args[sc->offset]); 2633 break; 2634 } 2635 case AiocbArray: { 2636 /* 2637 * Print argment as an array of pointers to struct aiocb, where 2638 * the next syscall argument is the number of elements. 2639 */ 2640 uintptr_t cbs[16]; 2641 unsigned int nent; 2642 bool truncated; 2643 2644 nent = args[sc->offset + 1]; 2645 truncated = false; 2646 if (nent > nitems(cbs)) { 2647 nent = nitems(cbs); 2648 truncated = true; 2649 } 2650 2651 if (get_struct(pid, args[sc->offset], cbs, sizeof(uintptr_t) * nent) != -1) { 2652 unsigned int i; 2653 fputs("[", fp); 2654 for (i = 0; i < nent; ++i) { 2655 struct aiocb cb; 2656 if (i > 0) 2657 fputc(',', fp); 2658 if (get_struct(pid, cbs[i], &cb, sizeof(cb)) != -1) 2659 print_aiocb(fp, &cb); 2660 else 2661 print_pointer(fp, cbs[i]); 2662 } 2663 if (truncated) 2664 fputs(",...", fp); 2665 fputs("]", fp); 2666 } else 2667 print_pointer(fp, args[sc->offset]); 2668 break; 2669 } 2670 case AiocbPointer: { 2671 /* 2672 * aio_waitcomplete(2) assigns a pointer to a pointer to struct 2673 * aiocb, so we need to handle the extra layer of indirection. 2674 */ 2675 uintptr_t cbp; 2676 struct aiocb cb; 2677 2678 if (get_struct(pid, args[sc->offset], &cbp, sizeof(cbp)) != -1) { 2679 if (get_struct(pid, cbp, &cb, sizeof(cb)) != -1) 2680 print_aiocb(fp, &cb); 2681 else 2682 print_pointer(fp, cbp); 2683 } else 2684 print_pointer(fp, args[sc->offset]); 2685 break; 2686 } 2687 case Sctpsndrcvinfo: { 2688 struct sctp_sndrcvinfo info; 2689 2690 if (get_struct(pid, args[sc->offset], 2691 &info, sizeof(struct sctp_sndrcvinfo)) == -1) { 2692 print_pointer(fp, args[sc->offset]); 2693 break; 2694 } 2695 print_sctp_sndrcvinfo(fp, sc->type & OUT, &info); 2696 break; 2697 } 2698 case Msghdr: { 2699 struct msghdr msghdr; 2700 2701 if (get_struct(pid, args[sc->offset], 2702 &msghdr, sizeof(struct msghdr)) == -1) { 2703 print_pointer(fp, args[sc->offset]); 2704 break; 2705 } 2706 fputs("{", fp); 2707 print_sockaddr(fp, trussinfo, (uintptr_t)msghdr.msg_name, msghdr.msg_namelen); 2708 fprintf(fp, ",%d,", msghdr.msg_namelen); 2709 print_iovec(fp, trussinfo, (uintptr_t)msghdr.msg_iov, msghdr.msg_iovlen); 2710 fprintf(fp, ",%d,", msghdr.msg_iovlen); 2711 print_cmsgs(fp, pid, sc->type & OUT, &msghdr); 2712 fprintf(fp, ",%u,", msghdr.msg_controllen); 2713 print_mask_arg(sysdecode_msg_flags, fp, msghdr.msg_flags); 2714 fputs("}", fp); 2715 break; 2716 } 2717 2718 default: 2719 errx(1, "Invalid argument type %d\n", sc->type & ARG_MASK); 2720 } 2721 fclose(fp); 2722 return (tmp); 2723 } 2724 2725 /* 2726 * Print (to outfile) the system call and its arguments. 2727 */ 2728 void 2729 print_syscall(struct trussinfo *trussinfo) 2730 { 2731 struct threadinfo *t; 2732 const char *name; 2733 char **s_args; 2734 int i, len, nargs; 2735 2736 t = trussinfo->curthread; 2737 2738 name = t->cs.sc->name; 2739 nargs = t->cs.nargs; 2740 s_args = t->cs.s_args; 2741 2742 len = print_line_prefix(trussinfo); 2743 len += fprintf(trussinfo->outfile, "%s(", name); 2744 2745 for (i = 0; i < nargs; i++) { 2746 if (s_args[i] != NULL) 2747 len += fprintf(trussinfo->outfile, "%s", s_args[i]); 2748 else 2749 len += fprintf(trussinfo->outfile, 2750 "<missing argument>"); 2751 len += fprintf(trussinfo->outfile, "%s", i < (nargs - 1) ? 2752 "," : ""); 2753 } 2754 len += fprintf(trussinfo->outfile, ")"); 2755 for (i = 0; i < 6 - (len / 8); i++) 2756 fprintf(trussinfo->outfile, "\t"); 2757 } 2758 2759 void 2760 print_syscall_ret(struct trussinfo *trussinfo, int error, syscallarg_t *retval) 2761 { 2762 struct timespec timediff; 2763 struct threadinfo *t; 2764 struct syscall *sc; 2765 2766 t = trussinfo->curthread; 2767 sc = t->cs.sc; 2768 if (trussinfo->flags & COUNTONLY) { 2769 timespecsub(&t->after, &t->before, &timediff); 2770 timespecadd(&sc->time, &timediff, &sc->time); 2771 sc->ncalls++; 2772 if (error != 0) 2773 sc->nerror++; 2774 return; 2775 } 2776 2777 print_syscall(trussinfo); 2778 fflush(trussinfo->outfile); 2779 2780 if (retval == NULL) { 2781 /* 2782 * This system call resulted in the current thread's exit, 2783 * so there is no return value or error to display. 2784 */ 2785 fprintf(trussinfo->outfile, "\n"); 2786 return; 2787 } 2788 2789 if (error == ERESTART) 2790 fprintf(trussinfo->outfile, " ERESTART\n"); 2791 else if (error == EJUSTRETURN) 2792 fprintf(trussinfo->outfile, " EJUSTRETURN\n"); 2793 else if (error != 0) { 2794 fprintf(trussinfo->outfile, " ERR#%d '%s'\n", 2795 sysdecode_freebsd_to_abi_errno(t->proc->abi->abi, error), 2796 strerror(error)); 2797 } else if (sc->decode.ret_type == 2 && 2798 t->proc->abi->pointer_size == 4) { 2799 off_t off; 2800 #if _BYTE_ORDER == _LITTLE_ENDIAN 2801 off = (off_t)retval[1] << 32 | retval[0]; 2802 #else 2803 off = (off_t)retval[0] << 32 | retval[1]; 2804 #endif 2805 fprintf(trussinfo->outfile, " = %jd (0x%jx)\n", (intmax_t)off, 2806 (intmax_t)off); 2807 } else { 2808 fprintf(trussinfo->outfile, " = %jd (0x%jx)\n", 2809 (intmax_t)retval[0], (intmax_t)retval[0]); 2810 } 2811 } 2812 2813 void 2814 print_summary(struct trussinfo *trussinfo) 2815 { 2816 struct timespec total = {0, 0}; 2817 struct syscall *sc; 2818 int ncall, nerror; 2819 2820 fprintf(trussinfo->outfile, "%-20s%15s%8s%8s\n", 2821 "syscall", "seconds", "calls", "errors"); 2822 ncall = nerror = 0; 2823 STAILQ_FOREACH(sc, &seen_syscalls, entries) { 2824 if (sc->ncalls) { 2825 fprintf(trussinfo->outfile, "%-20s%5jd.%09ld%8d%8d\n", 2826 sc->name, (intmax_t)sc->time.tv_sec, 2827 sc->time.tv_nsec, sc->ncalls, sc->nerror); 2828 timespecadd(&total, &sc->time, &total); 2829 ncall += sc->ncalls; 2830 nerror += sc->nerror; 2831 } 2832 } 2833 fprintf(trussinfo->outfile, "%20s%15s%8s%8s\n", 2834 "", "-------------", "-------", "-------"); 2835 fprintf(trussinfo->outfile, "%-20s%5jd.%09ld%8d%8d\n", 2836 "", (intmax_t)total.tv_sec, total.tv_nsec, ncall, nerror); 2837 } 2838