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 { .name = "unlink", .ret_type = 1, .nargs = 1, 582 .args = { { Name, 0 } } }, 583 { .name = "unlinkat", .ret_type = 1, .nargs = 3, 584 .args = { { Atfd, 0 }, { Name, 1 }, { Atflags, 2 } } }, 585 { .name = "unmount", .ret_type = 1, .nargs = 2, 586 .args = { { Name, 0 }, { Mountflags, 1 } } }, 587 { .name = "utimensat", .ret_type = 1, .nargs = 4, 588 .args = { { Atfd, 0 }, { Name | IN, 1 }, { Timespec2 | IN, 2 }, 589 { Atflags, 3 } } }, 590 { .name = "utimes", .ret_type = 1, .nargs = 2, 591 .args = { { Name | IN, 0 }, { Timeval2 | IN, 1 } } }, 592 { .name = "utrace", .ret_type = 1, .nargs = 1, 593 .args = { { Utrace, 0 } } }, 594 { .name = "wait4", .ret_type = 1, .nargs = 4, 595 .args = { { Int, 0 }, { ExitStatus | OUT, 1 }, { Waitoptions, 2 }, 596 { Rusage | OUT, 3 } } }, 597 { .name = "wait6", .ret_type = 1, .nargs = 6, 598 .args = { { Idtype, 0 }, { Quad, 1 }, { ExitStatus | OUT, 2 }, 599 { Waitoptions, 3 }, { Rusage | OUT, 4 }, 600 { Siginfo | OUT, 5 } } }, 601 { .name = "write", .ret_type = 1, .nargs = 3, 602 .args = { { Int, 0 }, { BinString | IN, 1 }, { Sizet, 2 } } }, 603 { .name = "writev", .ret_type = 1, .nargs = 3, 604 .args = { { Int, 0 }, { Iovec | IN, 1 }, { Int, 2 } } }, 605 606 /* Linux ABI */ 607 { .name = "linux_access", .ret_type = 1, .nargs = 2, 608 .args = { { Name, 0 }, { Accessmode, 1 } } }, 609 { .name = "linux_execve", .ret_type = 1, .nargs = 3, 610 .args = { { Name | IN, 0 }, { ExecArgs | IN, 1 }, 611 { ExecEnv | IN, 2 } } }, 612 { .name = "linux_getitimer", .ret_type = 1, .nargs = 2, 613 .args = { { Itimerwhich, 0 }, { Itimerval | OUT, 2 } } }, 614 { .name = "linux_lseek", .ret_type = 2, .nargs = 3, 615 .args = { { Int, 0 }, { Int, 1 }, { Whence, 2 } } }, 616 { .name = "linux_mkdir", .ret_type = 1, .nargs = 2, 617 .args = { { Name | IN, 0 }, { Int, 1 } } }, 618 { .name = "linux_newfstat", .ret_type = 1, .nargs = 2, 619 .args = { { Int, 0 }, { Ptr | OUT, 1 } } }, 620 { .name = "linux_newstat", .ret_type = 1, .nargs = 2, 621 .args = { { Name | IN, 0 }, { Ptr | OUT, 1 } } }, 622 { .name = "linux_open", .ret_type = 1, .nargs = 3, 623 .args = { { Name, 0 }, { Hex, 1 }, { Octal, 2 } } }, 624 { .name = "linux_readlink", .ret_type = 1, .nargs = 3, 625 .args = { { Name, 0 }, { Name | OUT, 1 }, { Sizet, 2 } } }, 626 { .name = "linux_setitimer", .ret_type = 1, .nargs = 3, 627 .args = { { Itimerwhich, 0 }, { Itimerval, 1 }, 628 { Itimerval | OUT, 2 } } }, 629 { .name = "linux_socketcall", .ret_type = 1, .nargs = 2, 630 .args = { { Int, 0 }, { LinuxSockArgs, 1 } } }, 631 { .name = "linux_stat64", .ret_type = 1, .nargs = 2, 632 .args = { { Name | IN, 0 }, { Ptr | OUT, 1 } } }, 633 }; 634 static STAILQ_HEAD(, syscall) seen_syscalls; 635 636 /* Xlat idea taken from strace */ 637 struct xlat { 638 int val; 639 const char *str; 640 }; 641 642 #define X(a) { a, #a }, 643 #define XEND { 0, NULL } 644 645 static struct xlat poll_flags[] = { 646 X(POLLSTANDARD) X(POLLIN) X(POLLPRI) X(POLLOUT) X(POLLERR) 647 X(POLLHUP) X(POLLNVAL) X(POLLRDNORM) X(POLLRDBAND) 648 X(POLLWRBAND) X(POLLINIGNEOF) X(POLLRDHUP) XEND 649 }; 650 651 static struct xlat sigaction_flags[] = { 652 X(SA_ONSTACK) X(SA_RESTART) X(SA_RESETHAND) X(SA_NOCLDSTOP) 653 X(SA_NODEFER) X(SA_NOCLDWAIT) X(SA_SIGINFO) XEND 654 }; 655 656 static struct xlat linux_socketcall_ops[] = { 657 X(LINUX_SOCKET) X(LINUX_BIND) X(LINUX_CONNECT) X(LINUX_LISTEN) 658 X(LINUX_ACCEPT) X(LINUX_GETSOCKNAME) X(LINUX_GETPEERNAME) 659 X(LINUX_SOCKETPAIR) X(LINUX_SEND) X(LINUX_RECV) X(LINUX_SENDTO) 660 X(LINUX_RECVFROM) X(LINUX_SHUTDOWN) X(LINUX_SETSOCKOPT) 661 X(LINUX_GETSOCKOPT) X(LINUX_SENDMSG) X(LINUX_RECVMSG) 662 XEND 663 }; 664 665 static struct xlat lio_modes[] = { 666 X(LIO_WAIT) X(LIO_NOWAIT) 667 XEND 668 }; 669 670 static struct xlat lio_opcodes[] = { 671 X(LIO_WRITE) X(LIO_READ) X(LIO_READV) X(LIO_WRITEV) X(LIO_NOP) 672 XEND 673 }; 674 675 static struct xlat aio_fsync_ops[] = { 676 X(O_SYNC) 677 XEND 678 }; 679 680 #undef X 681 #undef XEND 682 683 /* 684 * Searches an xlat array for a value, and returns it if found. Otherwise 685 * return a string representation. 686 */ 687 static const char * 688 lookup(struct xlat *xlat, int val, int base) 689 { 690 static char tmp[16]; 691 692 for (; xlat->str != NULL; xlat++) 693 if (xlat->val == val) 694 return (xlat->str); 695 switch (base) { 696 case 8: 697 sprintf(tmp, "0%o", val); 698 break; 699 case 16: 700 sprintf(tmp, "0x%x", val); 701 break; 702 case 10: 703 sprintf(tmp, "%u", val); 704 break; 705 default: 706 errx(1, "Unknown lookup base"); 707 } 708 return (tmp); 709 } 710 711 static const char * 712 xlookup(struct xlat *xlat, int val) 713 { 714 715 return (lookup(xlat, val, 16)); 716 } 717 718 /* 719 * Searches an xlat array containing bitfield values. Remaining bits 720 * set after removing the known ones are printed at the end: 721 * IN|0x400. 722 */ 723 static char * 724 xlookup_bits(struct xlat *xlat, int val) 725 { 726 int len, rem; 727 static char str[512]; 728 729 len = 0; 730 rem = val; 731 for (; xlat->str != NULL; xlat++) { 732 if ((xlat->val & rem) == xlat->val) { 733 /* 734 * Don't print the "all-bits-zero" string unless all 735 * bits are really zero. 736 */ 737 if (xlat->val == 0 && val != 0) 738 continue; 739 len += sprintf(str + len, "%s|", xlat->str); 740 rem &= ~(xlat->val); 741 } 742 } 743 744 /* 745 * If we have leftover bits or didn't match anything, print 746 * the remainder. 747 */ 748 if (rem || len == 0) 749 len += sprintf(str + len, "0x%x", rem); 750 if (len && str[len - 1] == '|') 751 len--; 752 str[len] = 0; 753 return (str); 754 } 755 756 static void 757 print_integer_arg(const char *(*decoder)(int), FILE *fp, int value) 758 { 759 const char *str; 760 761 str = decoder(value); 762 if (str != NULL) 763 fputs(str, fp); 764 else 765 fprintf(fp, "%d", value); 766 } 767 768 static bool 769 print_mask_arg_part(bool (*decoder)(FILE *, int, int *), FILE *fp, int value, 770 int *rem) 771 { 772 773 return (decoder(fp, value, rem)); 774 } 775 776 static void 777 print_mask_arg(bool (*decoder)(FILE *, int, int *), FILE *fp, int value) 778 { 779 int rem; 780 781 if (!print_mask_arg_part(decoder, fp, value, &rem)) 782 fprintf(fp, "0x%x", rem); 783 else if (rem != 0) 784 fprintf(fp, "|0x%x", rem); 785 } 786 787 static void 788 print_mask_arg32(bool (*decoder)(FILE *, uint32_t, uint32_t *), FILE *fp, 789 uint32_t value) 790 { 791 uint32_t rem; 792 793 if (!decoder(fp, value, &rem)) 794 fprintf(fp, "0x%x", rem); 795 else if (rem != 0) 796 fprintf(fp, "|0x%x", rem); 797 } 798 799 /* 800 * Add argument padding to subsequent system calls after Quad 801 * syscall arguments as needed. This used to be done by hand in the 802 * decoded_syscalls table which was ugly and error prone. It is 803 * simpler to do the fixup of offsets at initialization time than when 804 * decoding arguments. 805 */ 806 static void 807 quad_fixup(struct syscall_decode *sc) 808 { 809 int offset, prev; 810 u_int i; 811 812 offset = 0; 813 prev = -1; 814 for (i = 0; i < sc->nargs; i++) { 815 /* This arg type is a dummy that doesn't use offset. */ 816 if ((sc->args[i].type & ARG_MASK) == PipeFds) 817 continue; 818 819 assert(prev < sc->args[i].offset); 820 prev = sc->args[i].offset; 821 sc->args[i].offset += offset; 822 switch (sc->args[i].type & ARG_MASK) { 823 case Quad: 824 case QuadHex: 825 #if defined(__powerpc__) || defined(__arm__) || defined(__aarch64__) 826 /* 827 * 64-bit arguments on 32-bit powerpc and arm must be 828 * 64-bit aligned. If the current offset is 829 * not aligned, the calling convention inserts 830 * a 32-bit pad argument that should be skipped. 831 */ 832 if (sc->args[i].offset % 2 == 1) { 833 sc->args[i].offset++; 834 offset++; 835 } 836 #endif 837 offset++; 838 default: 839 break; 840 } 841 } 842 } 843 844 static struct syscall * 845 find_syscall(struct procabi *abi, u_int number) 846 { 847 struct extra_syscall *es; 848 849 if (number < nitems(abi->syscalls)) 850 return (abi->syscalls[number]); 851 STAILQ_FOREACH(es, &abi->extra_syscalls, entries) { 852 if (es->number == number) 853 return (es->sc); 854 } 855 return (NULL); 856 } 857 858 static void 859 add_syscall(struct procabi *abi, u_int number, struct syscall *sc) 860 { 861 struct extra_syscall *es; 862 863 /* 864 * quad_fixup() is currently needed for all 32-bit ABIs. 865 * TODO: This should probably be a function pointer inside struct 866 * procabi instead. 867 */ 868 if (abi->pointer_size == 4) 869 quad_fixup(&sc->decode); 870 871 if (number < nitems(abi->syscalls)) { 872 assert(abi->syscalls[number] == NULL); 873 abi->syscalls[number] = sc; 874 } else { 875 es = malloc(sizeof(*es)); 876 es->sc = sc; 877 es->number = number; 878 STAILQ_INSERT_TAIL(&abi->extra_syscalls, es, entries); 879 } 880 881 STAILQ_INSERT_HEAD(&seen_syscalls, sc, entries); 882 } 883 884 /* 885 * If/when the list gets big, it might be desirable to do it 886 * as a hash table or binary search. 887 */ 888 struct syscall * 889 get_syscall(struct threadinfo *t, u_int number, u_int nargs) 890 { 891 struct syscall *sc; 892 struct procabi *procabi; 893 const char *sysdecode_name; 894 const char *lookup_name; 895 const char *name; 896 u_int i; 897 898 procabi = t->proc->abi; 899 sc = find_syscall(procabi, number); 900 if (sc != NULL) 901 return (sc); 902 903 /* Memory is not explicitly deallocated, it's released on exit(). */ 904 sysdecode_name = sysdecode_syscallname(procabi->abi, number); 905 if (sysdecode_name == NULL) 906 asprintf(__DECONST(char **, &name), "#%d", number); 907 else 908 name = sysdecode_name; 909 910 sc = calloc(1, sizeof(*sc)); 911 sc->name = name; 912 913 /* Also decode compat syscalls arguments by stripping the prefix. */ 914 lookup_name = name; 915 if (procabi->compat_prefix != NULL && strncmp(procabi->compat_prefix, 916 name, strlen(procabi->compat_prefix)) == 0) 917 lookup_name += strlen(procabi->compat_prefix); 918 919 for (i = 0; i < nitems(decoded_syscalls); i++) { 920 if (strcmp(lookup_name, decoded_syscalls[i].name) == 0) { 921 sc->decode = decoded_syscalls[i]; 922 add_syscall(t->proc->abi, number, sc); 923 return (sc); 924 } 925 } 926 927 /* It is unknown. Add it into the list. */ 928 #if DEBUG 929 fprintf(stderr, "unknown syscall %s -- setting args to %d\n", name, 930 nargs); 931 #endif 932 sc->unknown = sysdecode_name == NULL; 933 sc->decode.ret_type = 1; /* Assume 1 return value. */ 934 sc->decode.nargs = nargs; 935 for (i = 0; i < nargs; i++) { 936 sc->decode.args[i].offset = i; 937 /* Treat all unknown arguments as LongHex. */ 938 sc->decode.args[i].type = LongHex; 939 } 940 add_syscall(t->proc->abi, number, sc); 941 return (sc); 942 } 943 944 /* 945 * Copy a fixed amount of bytes from the process. 946 */ 947 static int 948 get_struct(pid_t pid, psaddr_t offset, void *buf, size_t len) 949 { 950 struct ptrace_io_desc iorequest; 951 952 iorequest.piod_op = PIOD_READ_D; 953 iorequest.piod_offs = (void *)(uintptr_t)offset; 954 iorequest.piod_addr = buf; 955 iorequest.piod_len = len; 956 if (ptrace(PT_IO, pid, (caddr_t)&iorequest, 0) < 0) 957 return (-1); 958 return (0); 959 } 960 961 #define MAXSIZE 4096 962 963 /* 964 * Copy a string from the process. Note that it is 965 * expected to be a C string, but if max is set, it will 966 * only get that much. 967 */ 968 static char * 969 get_string(pid_t pid, psaddr_t addr, int max) 970 { 971 struct ptrace_io_desc iorequest; 972 char *buf, *nbuf; 973 size_t offset, size, totalsize; 974 975 offset = 0; 976 if (max) 977 size = max + 1; 978 else { 979 /* Read up to the end of the current page. */ 980 size = PAGE_SIZE - (addr % PAGE_SIZE); 981 if (size > MAXSIZE) 982 size = MAXSIZE; 983 } 984 totalsize = size; 985 buf = malloc(totalsize); 986 if (buf == NULL) 987 return (NULL); 988 for (;;) { 989 iorequest.piod_op = PIOD_READ_D; 990 iorequest.piod_offs = (void *)((uintptr_t)addr + offset); 991 iorequest.piod_addr = buf + offset; 992 iorequest.piod_len = size; 993 if (ptrace(PT_IO, pid, (caddr_t)&iorequest, 0) < 0) { 994 free(buf); 995 return (NULL); 996 } 997 if (memchr(buf + offset, '\0', size) != NULL) 998 return (buf); 999 offset += size; 1000 if (totalsize < MAXSIZE && max == 0) { 1001 size = MAXSIZE - totalsize; 1002 if (size > PAGE_SIZE) 1003 size = PAGE_SIZE; 1004 nbuf = realloc(buf, totalsize + size); 1005 if (nbuf == NULL) { 1006 buf[totalsize - 1] = '\0'; 1007 return (buf); 1008 } 1009 buf = nbuf; 1010 totalsize += size; 1011 } else { 1012 buf[totalsize - 1] = '\0'; 1013 return (buf); 1014 } 1015 } 1016 } 1017 1018 static const char * 1019 strsig2(int sig) 1020 { 1021 static char tmp[32]; 1022 const char *signame; 1023 1024 signame = sysdecode_signal(sig); 1025 if (signame == NULL) { 1026 snprintf(tmp, sizeof(tmp), "%d", sig); 1027 signame = tmp; 1028 } 1029 return (signame); 1030 } 1031 1032 static void 1033 print_kevent(FILE *fp, struct kevent *ke) 1034 { 1035 1036 switch (ke->filter) { 1037 case EVFILT_READ: 1038 case EVFILT_WRITE: 1039 case EVFILT_VNODE: 1040 case EVFILT_PROC: 1041 case EVFILT_TIMER: 1042 case EVFILT_PROCDESC: 1043 case EVFILT_EMPTY: 1044 fprintf(fp, "%ju", (uintmax_t)ke->ident); 1045 break; 1046 case EVFILT_SIGNAL: 1047 fputs(strsig2(ke->ident), fp); 1048 break; 1049 default: 1050 fprintf(fp, "%p", (void *)ke->ident); 1051 } 1052 fprintf(fp, ","); 1053 print_integer_arg(sysdecode_kevent_filter, fp, ke->filter); 1054 fprintf(fp, ","); 1055 print_mask_arg(sysdecode_kevent_flags, fp, ke->flags); 1056 fprintf(fp, ","); 1057 sysdecode_kevent_fflags(fp, ke->filter, ke->fflags, 16); 1058 fprintf(fp, ",%#jx,%p", (uintmax_t)ke->data, ke->udata); 1059 } 1060 1061 static void 1062 print_utrace(FILE *fp, void *utrace_addr, size_t len) 1063 { 1064 unsigned char *utrace_buffer; 1065 1066 fprintf(fp, "{ "); 1067 if (sysdecode_utrace(fp, utrace_addr, len)) { 1068 fprintf(fp, " }"); 1069 return; 1070 } 1071 1072 utrace_buffer = utrace_addr; 1073 fprintf(fp, "%zu:", len); 1074 while (len--) 1075 fprintf(fp, " %02x", *utrace_buffer++); 1076 fprintf(fp, " }"); 1077 } 1078 1079 static void 1080 print_pointer(FILE *fp, uintptr_t arg) 1081 { 1082 1083 fprintf(fp, "%p", (void *)arg); 1084 } 1085 1086 static void 1087 print_sockaddr(FILE *fp, struct trussinfo *trussinfo, uintptr_t arg, 1088 socklen_t len) 1089 { 1090 char addr[64]; 1091 struct sockaddr_in *lsin; 1092 struct sockaddr_in6 *lsin6; 1093 struct sockaddr_un *sun; 1094 struct sockaddr *sa; 1095 u_char *q; 1096 pid_t pid = trussinfo->curthread->proc->pid; 1097 1098 if (arg == 0) { 1099 fputs("NULL", fp); 1100 return; 1101 } 1102 /* If the length is too small, just bail. */ 1103 if (len < sizeof(*sa)) { 1104 print_pointer(fp, arg); 1105 return; 1106 } 1107 1108 sa = calloc(1, len); 1109 if (get_struct(pid, arg, sa, len) == -1) { 1110 free(sa); 1111 print_pointer(fp, arg); 1112 return; 1113 } 1114 1115 switch (sa->sa_family) { 1116 case AF_INET: 1117 if (len < sizeof(*lsin)) 1118 goto sockaddr_short; 1119 lsin = (struct sockaddr_in *)(void *)sa; 1120 inet_ntop(AF_INET, &lsin->sin_addr, addr, sizeof(addr)); 1121 fprintf(fp, "{ AF_INET %s:%d }", addr, 1122 htons(lsin->sin_port)); 1123 break; 1124 case AF_INET6: 1125 if (len < sizeof(*lsin6)) 1126 goto sockaddr_short; 1127 lsin6 = (struct sockaddr_in6 *)(void *)sa; 1128 inet_ntop(AF_INET6, &lsin6->sin6_addr, addr, 1129 sizeof(addr)); 1130 fprintf(fp, "{ AF_INET6 [%s]:%d }", addr, 1131 htons(lsin6->sin6_port)); 1132 break; 1133 case AF_UNIX: 1134 sun = (struct sockaddr_un *)sa; 1135 fprintf(fp, "{ AF_UNIX \"%.*s\" }", 1136 (int)(len - offsetof(struct sockaddr_un, sun_path)), 1137 sun->sun_path); 1138 break; 1139 default: 1140 sockaddr_short: 1141 fprintf(fp, 1142 "{ sa_len = %d, sa_family = %d, sa_data = {", 1143 (int)sa->sa_len, (int)sa->sa_family); 1144 for (q = (u_char *)sa->sa_data; 1145 q < (u_char *)sa + len; q++) 1146 fprintf(fp, "%s 0x%02x", 1147 q == (u_char *)sa->sa_data ? "" : ",", 1148 *q); 1149 fputs(" } }", fp); 1150 } 1151 free(sa); 1152 } 1153 1154 #define IOV_LIMIT 16 1155 1156 static void 1157 print_iovec(FILE *fp, struct trussinfo *trussinfo, uintptr_t arg, int iovcnt) 1158 { 1159 struct iovec iov[IOV_LIMIT]; 1160 size_t max_string = trussinfo->strsize; 1161 char tmp2[max_string + 1], *tmp3; 1162 size_t len; 1163 pid_t pid = trussinfo->curthread->proc->pid; 1164 int i; 1165 bool buf_truncated, iov_truncated; 1166 1167 if (iovcnt <= 0) { 1168 print_pointer(fp, arg); 1169 return; 1170 } 1171 if (iovcnt > IOV_LIMIT) { 1172 iovcnt = IOV_LIMIT; 1173 iov_truncated = true; 1174 } else { 1175 iov_truncated = false; 1176 } 1177 if (get_struct(pid, arg, &iov, iovcnt * sizeof(struct iovec)) == -1) { 1178 print_pointer(fp, arg); 1179 return; 1180 } 1181 1182 fputs("[", fp); 1183 for (i = 0; i < iovcnt; i++) { 1184 len = iov[i].iov_len; 1185 if (len > max_string) { 1186 len = max_string; 1187 buf_truncated = true; 1188 } else { 1189 buf_truncated = false; 1190 } 1191 fprintf(fp, "%s{", (i > 0) ? "," : ""); 1192 if (len && get_struct(pid, (uintptr_t)iov[i].iov_base, &tmp2, len) != -1) { 1193 tmp3 = malloc(len * 4 + 1); 1194 while (len) { 1195 if (strvisx(tmp3, tmp2, len, 1196 VIS_CSTYLE|VIS_TAB|VIS_NL) <= 1197 (int)max_string) 1198 break; 1199 len--; 1200 buf_truncated = true; 1201 } 1202 fprintf(fp, "\"%s\"%s", tmp3, 1203 buf_truncated ? "..." : ""); 1204 free(tmp3); 1205 } else { 1206 print_pointer(fp, (uintptr_t)iov[i].iov_base); 1207 } 1208 fprintf(fp, ",%zu}", iov[i].iov_len); 1209 } 1210 fprintf(fp, "%s%s", iov_truncated ? ",..." : "", "]"); 1211 } 1212 1213 static void 1214 print_sigval(FILE *fp, union sigval *sv) 1215 { 1216 fprintf(fp, "{ %d, %p }", sv->sival_int, sv->sival_ptr); 1217 } 1218 1219 static void 1220 print_sigevent(FILE *fp, struct sigevent *se) 1221 { 1222 fputs("{ sigev_notify=", fp); 1223 switch (se->sigev_notify) { 1224 case SIGEV_NONE: 1225 fputs("SIGEV_NONE", fp); 1226 break; 1227 case SIGEV_SIGNAL: 1228 fprintf(fp, "SIGEV_SIGNAL, sigev_signo=%s, sigev_value=", 1229 strsig2(se->sigev_signo)); 1230 print_sigval(fp, &se->sigev_value); 1231 break; 1232 case SIGEV_THREAD: 1233 fputs("SIGEV_THREAD, sigev_value=", fp); 1234 print_sigval(fp, &se->sigev_value); 1235 break; 1236 case SIGEV_KEVENT: 1237 fprintf(fp, "SIGEV_KEVENT, sigev_notify_kqueue=%d, sigev_notify_kevent_flags=", 1238 se->sigev_notify_kqueue); 1239 print_mask_arg(sysdecode_kevent_flags, fp, se->sigev_notify_kevent_flags); 1240 break; 1241 case SIGEV_THREAD_ID: 1242 fprintf(fp, "SIGEV_THREAD_ID, sigev_notify_thread_id=%d, sigev_signo=%s, sigev_value=", 1243 se->sigev_notify_thread_id, strsig2(se->sigev_signo)); 1244 print_sigval(fp, &se->sigev_value); 1245 break; 1246 default: 1247 fprintf(fp, "%d", se->sigev_notify); 1248 break; 1249 } 1250 fputs(" }", fp); 1251 } 1252 1253 static void 1254 print_aiocb(FILE *fp, struct aiocb *cb) 1255 { 1256 fprintf(fp, "{ %d,%jd,%p,%zu,%s,", 1257 cb->aio_fildes, 1258 cb->aio_offset, 1259 cb->aio_buf, 1260 cb->aio_nbytes, 1261 xlookup(lio_opcodes, cb->aio_lio_opcode)); 1262 print_sigevent(fp, &cb->aio_sigevent); 1263 fputs(" }", fp); 1264 } 1265 1266 static void 1267 print_gen_cmsg(FILE *fp, struct cmsghdr *cmsghdr) 1268 { 1269 u_char *q; 1270 1271 fputs("{", fp); 1272 for (q = CMSG_DATA(cmsghdr); 1273 q < (u_char *)cmsghdr + cmsghdr->cmsg_len; q++) { 1274 fprintf(fp, "%s0x%02x", q == CMSG_DATA(cmsghdr) ? "" : ",", *q); 1275 } 1276 fputs("}", fp); 1277 } 1278 1279 static void 1280 print_sctp_initmsg(FILE *fp, struct sctp_initmsg *init) 1281 { 1282 fprintf(fp, "{out=%u,", init->sinit_num_ostreams); 1283 fprintf(fp, "in=%u,", init->sinit_max_instreams); 1284 fprintf(fp, "max_rtx=%u,", init->sinit_max_attempts); 1285 fprintf(fp, "max_rto=%u}", init->sinit_max_init_timeo); 1286 } 1287 1288 static void 1289 print_sctp_sndrcvinfo(FILE *fp, bool receive, struct sctp_sndrcvinfo *info) 1290 { 1291 fprintf(fp, "{sid=%u,", info->sinfo_stream); 1292 if (receive) { 1293 fprintf(fp, "ssn=%u,", info->sinfo_ssn); 1294 } 1295 fputs("flgs=", fp); 1296 sysdecode_sctp_sinfo_flags(fp, info->sinfo_flags); 1297 fprintf(fp, ",ppid=%u,", ntohl(info->sinfo_ppid)); 1298 if (!receive) { 1299 fprintf(fp, "ctx=%u,", info->sinfo_context); 1300 fprintf(fp, "ttl=%u,", info->sinfo_timetolive); 1301 } 1302 if (receive) { 1303 fprintf(fp, "tsn=%u,", info->sinfo_tsn); 1304 fprintf(fp, "cumtsn=%u,", info->sinfo_cumtsn); 1305 } 1306 fprintf(fp, "id=%u}", info->sinfo_assoc_id); 1307 } 1308 1309 static void 1310 print_sctp_sndinfo(FILE *fp, struct sctp_sndinfo *info) 1311 { 1312 fprintf(fp, "{sid=%u,", info->snd_sid); 1313 fputs("flgs=", fp); 1314 print_mask_arg(sysdecode_sctp_snd_flags, fp, info->snd_flags); 1315 fprintf(fp, ",ppid=%u,", ntohl(info->snd_ppid)); 1316 fprintf(fp, "ctx=%u,", info->snd_context); 1317 fprintf(fp, "id=%u}", info->snd_assoc_id); 1318 } 1319 1320 static void 1321 print_sctp_rcvinfo(FILE *fp, struct sctp_rcvinfo *info) 1322 { 1323 fprintf(fp, "{sid=%u,", info->rcv_sid); 1324 fprintf(fp, "ssn=%u,", info->rcv_ssn); 1325 fputs("flgs=", fp); 1326 print_mask_arg(sysdecode_sctp_rcv_flags, fp, info->rcv_flags); 1327 fprintf(fp, ",ppid=%u,", ntohl(info->rcv_ppid)); 1328 fprintf(fp, "tsn=%u,", info->rcv_tsn); 1329 fprintf(fp, "cumtsn=%u,", info->rcv_cumtsn); 1330 fprintf(fp, "ctx=%u,", info->rcv_context); 1331 fprintf(fp, "id=%u}", info->rcv_assoc_id); 1332 } 1333 1334 static void 1335 print_sctp_nxtinfo(FILE *fp, struct sctp_nxtinfo *info) 1336 { 1337 fprintf(fp, "{sid=%u,", info->nxt_sid); 1338 fputs("flgs=", fp); 1339 print_mask_arg(sysdecode_sctp_nxt_flags, fp, info->nxt_flags); 1340 fprintf(fp, ",ppid=%u,", ntohl(info->nxt_ppid)); 1341 fprintf(fp, "len=%u,", info->nxt_length); 1342 fprintf(fp, "id=%u}", info->nxt_assoc_id); 1343 } 1344 1345 static void 1346 print_sctp_prinfo(FILE *fp, struct sctp_prinfo *info) 1347 { 1348 fputs("{pol=", fp); 1349 print_integer_arg(sysdecode_sctp_pr_policy, fp, info->pr_policy); 1350 fprintf(fp, ",val=%u}", info->pr_value); 1351 } 1352 1353 static void 1354 print_sctp_authinfo(FILE *fp, struct sctp_authinfo *info) 1355 { 1356 fprintf(fp, "{num=%u}", info->auth_keynumber); 1357 } 1358 1359 static void 1360 print_sctp_ipv4_addr(FILE *fp, struct in_addr *addr) 1361 { 1362 char buf[INET_ADDRSTRLEN]; 1363 const char *s; 1364 1365 s = inet_ntop(AF_INET, addr, buf, INET_ADDRSTRLEN); 1366 if (s != NULL) 1367 fprintf(fp, "{addr=%s}", s); 1368 else 1369 fputs("{addr=???}", fp); 1370 } 1371 1372 static void 1373 print_sctp_ipv6_addr(FILE *fp, struct in6_addr *addr) 1374 { 1375 char buf[INET6_ADDRSTRLEN]; 1376 const char *s; 1377 1378 s = inet_ntop(AF_INET6, addr, buf, INET6_ADDRSTRLEN); 1379 if (s != NULL) 1380 fprintf(fp, "{addr=%s}", s); 1381 else 1382 fputs("{addr=???}", fp); 1383 } 1384 1385 static void 1386 print_sctp_cmsg(FILE *fp, bool receive, struct cmsghdr *cmsghdr) 1387 { 1388 void *data; 1389 socklen_t len; 1390 1391 len = cmsghdr->cmsg_len; 1392 data = CMSG_DATA(cmsghdr); 1393 switch (cmsghdr->cmsg_type) { 1394 case SCTP_INIT: 1395 if (len == CMSG_LEN(sizeof(struct sctp_initmsg))) 1396 print_sctp_initmsg(fp, (struct sctp_initmsg *)data); 1397 else 1398 print_gen_cmsg(fp, cmsghdr); 1399 break; 1400 case SCTP_SNDRCV: 1401 if (len == CMSG_LEN(sizeof(struct sctp_sndrcvinfo))) 1402 print_sctp_sndrcvinfo(fp, receive, 1403 (struct sctp_sndrcvinfo *)data); 1404 else 1405 print_gen_cmsg(fp, cmsghdr); 1406 break; 1407 #if 0 1408 case SCTP_EXTRCV: 1409 if (len == CMSG_LEN(sizeof(struct sctp_extrcvinfo))) 1410 print_sctp_extrcvinfo(fp, 1411 (struct sctp_extrcvinfo *)data); 1412 else 1413 print_gen_cmsg(fp, cmsghdr); 1414 break; 1415 #endif 1416 case SCTP_SNDINFO: 1417 if (len == CMSG_LEN(sizeof(struct sctp_sndinfo))) 1418 print_sctp_sndinfo(fp, (struct sctp_sndinfo *)data); 1419 else 1420 print_gen_cmsg(fp, cmsghdr); 1421 break; 1422 case SCTP_RCVINFO: 1423 if (len == CMSG_LEN(sizeof(struct sctp_rcvinfo))) 1424 print_sctp_rcvinfo(fp, (struct sctp_rcvinfo *)data); 1425 else 1426 print_gen_cmsg(fp, cmsghdr); 1427 break; 1428 case SCTP_NXTINFO: 1429 if (len == CMSG_LEN(sizeof(struct sctp_nxtinfo))) 1430 print_sctp_nxtinfo(fp, (struct sctp_nxtinfo *)data); 1431 else 1432 print_gen_cmsg(fp, cmsghdr); 1433 break; 1434 case SCTP_PRINFO: 1435 if (len == CMSG_LEN(sizeof(struct sctp_prinfo))) 1436 print_sctp_prinfo(fp, (struct sctp_prinfo *)data); 1437 else 1438 print_gen_cmsg(fp, cmsghdr); 1439 break; 1440 case SCTP_AUTHINFO: 1441 if (len == CMSG_LEN(sizeof(struct sctp_authinfo))) 1442 print_sctp_authinfo(fp, (struct sctp_authinfo *)data); 1443 else 1444 print_gen_cmsg(fp, cmsghdr); 1445 break; 1446 case SCTP_DSTADDRV4: 1447 if (len == CMSG_LEN(sizeof(struct in_addr))) 1448 print_sctp_ipv4_addr(fp, (struct in_addr *)data); 1449 else 1450 print_gen_cmsg(fp, cmsghdr); 1451 break; 1452 case SCTP_DSTADDRV6: 1453 if (len == CMSG_LEN(sizeof(struct in6_addr))) 1454 print_sctp_ipv6_addr(fp, (struct in6_addr *)data); 1455 else 1456 print_gen_cmsg(fp, cmsghdr); 1457 break; 1458 default: 1459 print_gen_cmsg(fp, cmsghdr); 1460 } 1461 } 1462 1463 static void 1464 print_cmsgs(FILE *fp, pid_t pid, bool receive, struct msghdr *msghdr) 1465 { 1466 struct cmsghdr *cmsghdr; 1467 char *cmsgbuf; 1468 const char *temp; 1469 socklen_t len; 1470 int level, type; 1471 bool first; 1472 1473 len = msghdr->msg_controllen; 1474 if (len == 0) { 1475 fputs("{}", fp); 1476 return; 1477 } 1478 cmsgbuf = calloc(1, len); 1479 if (get_struct(pid, (uintptr_t)msghdr->msg_control, cmsgbuf, len) == -1) { 1480 print_pointer(fp, (uintptr_t)msghdr->msg_control); 1481 free(cmsgbuf); 1482 return; 1483 } 1484 msghdr->msg_control = cmsgbuf; 1485 first = true; 1486 fputs("{", fp); 1487 for (cmsghdr = CMSG_FIRSTHDR(msghdr); 1488 cmsghdr != NULL; 1489 cmsghdr = CMSG_NXTHDR(msghdr, cmsghdr)) { 1490 if (cmsghdr->cmsg_len < sizeof(*cmsghdr)) { 1491 fprintf(fp, "{<invalid cmsg, len=%u>}", 1492 cmsghdr->cmsg_len); 1493 if (cmsghdr->cmsg_len == 0) { 1494 /* Avoid looping forever. */ 1495 break; 1496 } 1497 continue; 1498 } 1499 1500 level = cmsghdr->cmsg_level; 1501 type = cmsghdr->cmsg_type; 1502 len = cmsghdr->cmsg_len; 1503 fprintf(fp, "%s{level=", first ? "" : ","); 1504 print_integer_arg(sysdecode_sockopt_level, fp, level); 1505 fputs(",type=", fp); 1506 temp = sysdecode_cmsg_type(level, type); 1507 if (temp) { 1508 fputs(temp, fp); 1509 } else { 1510 fprintf(fp, "%d", type); 1511 } 1512 fputs(",data=", fp); 1513 switch (level) { 1514 case IPPROTO_SCTP: 1515 print_sctp_cmsg(fp, receive, cmsghdr); 1516 break; 1517 default: 1518 print_gen_cmsg(fp, cmsghdr); 1519 break; 1520 } 1521 fputs("}", fp); 1522 first = false; 1523 } 1524 fputs("}", fp); 1525 free(cmsgbuf); 1526 } 1527 1528 static void 1529 print_sysctl_oid(FILE *fp, int *oid, size_t len) 1530 { 1531 size_t i; 1532 bool first; 1533 1534 first = true; 1535 fprintf(fp, "{ "); 1536 for (i = 0; i < len; i++) { 1537 fprintf(fp, "%s%d", first ? "" : ".", oid[i]); 1538 first = false; 1539 } 1540 fprintf(fp, " }"); 1541 } 1542 1543 static void 1544 print_sysctl(FILE *fp, int *oid, size_t len) 1545 { 1546 char name[BUFSIZ]; 1547 int qoid[CTL_MAXNAME + 2]; 1548 size_t i; 1549 1550 qoid[0] = CTL_SYSCTL; 1551 qoid[1] = CTL_SYSCTL_NAME; 1552 memcpy(qoid + 2, oid, len * sizeof(int)); 1553 i = sizeof(name); 1554 if (sysctl(qoid, len + 2, name, &i, 0, 0) == -1) 1555 print_sysctl_oid(fp, oid, len); 1556 else 1557 fprintf(fp, "%s", name); 1558 } 1559 1560 /* 1561 * Convert a 32-bit user-space pointer to psaddr_t by zero-extending. 1562 */ 1563 static psaddr_t 1564 user_ptr32_to_psaddr(int32_t user_pointer) 1565 { 1566 return ((psaddr_t)(uintptr_t)user_pointer); 1567 } 1568 1569 /* 1570 * Converts a syscall argument into a string. Said string is 1571 * allocated via malloc(), so needs to be free()'d. sc is 1572 * a pointer to the syscall description (see above); args is 1573 * an array of all of the system call arguments. 1574 */ 1575 char * 1576 print_arg(struct syscall_arg *sc, syscallarg_t *args, syscallarg_t *retval, 1577 struct trussinfo *trussinfo) 1578 { 1579 FILE *fp; 1580 char *tmp; 1581 size_t tmplen; 1582 pid_t pid; 1583 1584 fp = open_memstream(&tmp, &tmplen); 1585 pid = trussinfo->curthread->proc->pid; 1586 switch (sc->type & ARG_MASK) { 1587 case Hex: 1588 fprintf(fp, "0x%x", (int)args[sc->offset]); 1589 break; 1590 case Octal: 1591 fprintf(fp, "0%o", (int)args[sc->offset]); 1592 break; 1593 case Int: 1594 fprintf(fp, "%d", (int)args[sc->offset]); 1595 break; 1596 case UInt: 1597 fprintf(fp, "%u", (unsigned int)args[sc->offset]); 1598 break; 1599 case PUInt: { 1600 unsigned int val; 1601 1602 if (get_struct(pid, args[sc->offset], &val, 1603 sizeof(val)) == 0) 1604 fprintf(fp, "{ %u }", val); 1605 else 1606 print_pointer(fp, args[sc->offset]); 1607 break; 1608 } 1609 case LongHex: 1610 fprintf(fp, "0x%lx", (long)args[sc->offset]); 1611 break; 1612 case Long: 1613 fprintf(fp, "%ld", (long)args[sc->offset]); 1614 break; 1615 case Sizet: 1616 fprintf(fp, "%zu", (size_t)args[sc->offset]); 1617 break; 1618 case ShmName: 1619 /* Handle special SHM_ANON value. */ 1620 if ((char *)(uintptr_t)args[sc->offset] == SHM_ANON) { 1621 fprintf(fp, "SHM_ANON"); 1622 break; 1623 } 1624 /* FALLTHROUGH */ 1625 case Name: { 1626 /* NULL-terminated string. */ 1627 char *tmp2; 1628 1629 tmp2 = get_string(pid, args[sc->offset], 0); 1630 fprintf(fp, "\"%s\"", tmp2); 1631 free(tmp2); 1632 break; 1633 } 1634 case BinString: { 1635 /* 1636 * Binary block of data that might have printable characters. 1637 * XXX If type|OUT, assume that the length is the syscall's 1638 * return value. Otherwise, assume that the length of the block 1639 * is in the next syscall argument. 1640 */ 1641 int max_string = trussinfo->strsize; 1642 char tmp2[max_string + 1], *tmp3; 1643 int len; 1644 int truncated = 0; 1645 1646 if (sc->type & OUT) 1647 len = retval[0]; 1648 else 1649 len = args[sc->offset + 1]; 1650 1651 /* 1652 * Don't print more than max_string characters, to avoid word 1653 * wrap. If we have to truncate put some ... after the string. 1654 */ 1655 if (len > max_string) { 1656 len = max_string; 1657 truncated = 1; 1658 } 1659 if (len && get_struct(pid, args[sc->offset], &tmp2, len) 1660 != -1) { 1661 tmp3 = malloc(len * 4 + 1); 1662 while (len) { 1663 if (strvisx(tmp3, tmp2, len, 1664 VIS_CSTYLE|VIS_TAB|VIS_NL) <= max_string) 1665 break; 1666 len--; 1667 truncated = 1; 1668 } 1669 fprintf(fp, "\"%s\"%s", tmp3, truncated ? 1670 "..." : ""); 1671 free(tmp3); 1672 } else { 1673 print_pointer(fp, args[sc->offset]); 1674 } 1675 break; 1676 } 1677 case ExecArgs: 1678 case ExecEnv: 1679 case StringArray: { 1680 psaddr_t addr; 1681 union { 1682 int32_t strarray32[PAGE_SIZE / sizeof(int32_t)]; 1683 int64_t strarray64[PAGE_SIZE / sizeof(int64_t)]; 1684 char buf[PAGE_SIZE]; 1685 } u; 1686 char *string; 1687 size_t len; 1688 u_int first, i; 1689 size_t pointer_size = 1690 trussinfo->curthread->proc->abi->pointer_size; 1691 1692 /* 1693 * Only parse argv[] and environment arrays from exec calls 1694 * if requested. 1695 */ 1696 if (((sc->type & ARG_MASK) == ExecArgs && 1697 (trussinfo->flags & EXECVEARGS) == 0) || 1698 ((sc->type & ARG_MASK) == ExecEnv && 1699 (trussinfo->flags & EXECVEENVS) == 0)) { 1700 print_pointer(fp, args[sc->offset]); 1701 break; 1702 } 1703 1704 /* 1705 * Read a page of pointers at a time. Punt if the top-level 1706 * pointer is not aligned. Note that the first read is of 1707 * a partial page. 1708 */ 1709 addr = args[sc->offset]; 1710 if (!__is_aligned(addr, pointer_size)) { 1711 print_pointer(fp, args[sc->offset]); 1712 break; 1713 } 1714 1715 len = PAGE_SIZE - (addr & PAGE_MASK); 1716 if (get_struct(pid, addr, u.buf, len) == -1) { 1717 print_pointer(fp, args[sc->offset]); 1718 break; 1719 } 1720 assert(len > 0); 1721 1722 fputc('[', fp); 1723 first = 1; 1724 i = 0; 1725 for (;;) { 1726 psaddr_t straddr; 1727 if (pointer_size == 4) { 1728 straddr = user_ptr32_to_psaddr(u.strarray32[i]); 1729 } else if (pointer_size == 8) { 1730 straddr = (psaddr_t)u.strarray64[i]; 1731 } else { 1732 errx(1, "Unsupported pointer size: %zu", 1733 pointer_size); 1734 } 1735 1736 /* Stop once we read the first NULL pointer. */ 1737 if (straddr == 0) 1738 break; 1739 string = get_string(pid, straddr, 0); 1740 fprintf(fp, "%s \"%s\"", first ? "" : ",", string); 1741 free(string); 1742 first = 0; 1743 1744 i++; 1745 if (i == len / pointer_size) { 1746 addr += len; 1747 len = PAGE_SIZE; 1748 if (get_struct(pid, addr, u.buf, len) == -1) { 1749 fprintf(fp, ", <inval>"); 1750 break; 1751 } 1752 i = 0; 1753 } 1754 } 1755 fputs(" ]", fp); 1756 break; 1757 } 1758 case Quad: 1759 case QuadHex: { 1760 uint64_t value; 1761 size_t pointer_size = 1762 trussinfo->curthread->proc->abi->pointer_size; 1763 1764 if (pointer_size == 4) { 1765 #if _BYTE_ORDER == _LITTLE_ENDIAN 1766 value = (uint64_t)args[sc->offset + 1] << 32 | 1767 args[sc->offset]; 1768 #else 1769 value = (uint64_t)args[sc->offset] << 32 | 1770 args[sc->offset + 1]; 1771 #endif 1772 } else { 1773 value = (uint64_t)args[sc->offset]; 1774 } 1775 if ((sc->type & ARG_MASK) == Quad) 1776 fprintf(fp, "%jd", (intmax_t)value); 1777 else 1778 fprintf(fp, "0x%jx", (intmax_t)value); 1779 break; 1780 } 1781 case PQuadHex: { 1782 uint64_t val; 1783 1784 if (get_struct(pid, args[sc->offset], &val, 1785 sizeof(val)) == 0) 1786 fprintf(fp, "{ 0x%jx }", (uintmax_t)val); 1787 else 1788 print_pointer(fp, args[sc->offset]); 1789 break; 1790 } 1791 case Ptr: 1792 print_pointer(fp, args[sc->offset]); 1793 break; 1794 case Readlinkres: { 1795 char *tmp2; 1796 1797 if (retval[0] == -1) 1798 break; 1799 tmp2 = get_string(pid, args[sc->offset], retval[0]); 1800 fprintf(fp, "\"%s\"", tmp2); 1801 free(tmp2); 1802 break; 1803 } 1804 case Ioctl: { 1805 const char *temp; 1806 unsigned long cmd; 1807 1808 cmd = args[sc->offset]; 1809 temp = sysdecode_ioctlname(cmd); 1810 if (temp) 1811 fputs(temp, fp); 1812 else { 1813 fprintf(fp, "0x%lx { IO%s%s 0x%lx('%c'), %lu, %lu }", 1814 cmd, cmd & IOC_OUT ? "R" : "", 1815 cmd & IOC_IN ? "W" : "", IOCGROUP(cmd), 1816 isprint(IOCGROUP(cmd)) ? (char)IOCGROUP(cmd) : '?', 1817 cmd & 0xFF, IOCPARM_LEN(cmd)); 1818 } 1819 break; 1820 } 1821 case Timespec: { 1822 struct timespec ts; 1823 1824 if (get_struct(pid, args[sc->offset], &ts, sizeof(ts)) != -1) 1825 fprintf(fp, "{ %jd.%09ld }", (intmax_t)ts.tv_sec, 1826 ts.tv_nsec); 1827 else 1828 print_pointer(fp, args[sc->offset]); 1829 break; 1830 } 1831 case Timespec2: { 1832 struct timespec ts[2]; 1833 const char *sep; 1834 unsigned int i; 1835 1836 if (get_struct(pid, args[sc->offset], &ts, sizeof(ts)) != -1) { 1837 fputs("{ ", fp); 1838 sep = ""; 1839 for (i = 0; i < nitems(ts); i++) { 1840 fputs(sep, fp); 1841 sep = ", "; 1842 switch (ts[i].tv_nsec) { 1843 case UTIME_NOW: 1844 fprintf(fp, "UTIME_NOW"); 1845 break; 1846 case UTIME_OMIT: 1847 fprintf(fp, "UTIME_OMIT"); 1848 break; 1849 default: 1850 fprintf(fp, "%jd.%09ld", 1851 (intmax_t)ts[i].tv_sec, 1852 ts[i].tv_nsec); 1853 break; 1854 } 1855 } 1856 fputs(" }", fp); 1857 } else 1858 print_pointer(fp, args[sc->offset]); 1859 break; 1860 } 1861 case Timeval: { 1862 struct timeval tv; 1863 1864 if (get_struct(pid, args[sc->offset], &tv, sizeof(tv)) != -1) 1865 fprintf(fp, "{ %jd.%06ld }", (intmax_t)tv.tv_sec, 1866 tv.tv_usec); 1867 else 1868 print_pointer(fp, args[sc->offset]); 1869 break; 1870 } 1871 case Timeval2: { 1872 struct timeval tv[2]; 1873 1874 if (get_struct(pid, args[sc->offset], &tv, sizeof(tv)) != -1) 1875 fprintf(fp, "{ %jd.%06ld, %jd.%06ld }", 1876 (intmax_t)tv[0].tv_sec, tv[0].tv_usec, 1877 (intmax_t)tv[1].tv_sec, tv[1].tv_usec); 1878 else 1879 print_pointer(fp, args[sc->offset]); 1880 break; 1881 } 1882 case Itimerval: { 1883 struct itimerval itv; 1884 1885 if (get_struct(pid, args[sc->offset], &itv, sizeof(itv)) != -1) 1886 fprintf(fp, "{ %jd.%06ld, %jd.%06ld }", 1887 (intmax_t)itv.it_interval.tv_sec, 1888 itv.it_interval.tv_usec, 1889 (intmax_t)itv.it_value.tv_sec, 1890 itv.it_value.tv_usec); 1891 else 1892 print_pointer(fp, args[sc->offset]); 1893 break; 1894 } 1895 case LinuxSockArgs: 1896 { 1897 struct linux_socketcall_args largs; 1898 1899 if (get_struct(pid, args[sc->offset], (void *)&largs, 1900 sizeof(largs)) != -1) 1901 fprintf(fp, "{ %s, 0x%lx }", 1902 lookup(linux_socketcall_ops, largs.what, 10), 1903 (long unsigned int)largs.args); 1904 else 1905 print_pointer(fp, args[sc->offset]); 1906 break; 1907 } 1908 case Pollfd: { 1909 /* 1910 * XXX: A Pollfd argument expects the /next/ syscall argument 1911 * to be the number of fds in the array. This matches the poll 1912 * syscall. 1913 */ 1914 struct pollfd *pfd; 1915 int numfds = args[sc->offset + 1]; 1916 size_t bytes = sizeof(struct pollfd) * numfds; 1917 int i; 1918 1919 if ((pfd = malloc(bytes)) == NULL) 1920 err(1, "Cannot malloc %zu bytes for pollfd array", 1921 bytes); 1922 if (get_struct(pid, args[sc->offset], pfd, bytes) != -1) { 1923 fputs("{", fp); 1924 for (i = 0; i < numfds; i++) { 1925 fprintf(fp, " %d/%s", pfd[i].fd, 1926 xlookup_bits(poll_flags, pfd[i].events)); 1927 } 1928 fputs(" }", fp); 1929 } else { 1930 print_pointer(fp, args[sc->offset]); 1931 } 1932 free(pfd); 1933 break; 1934 } 1935 case Fd_set: { 1936 /* 1937 * XXX: A Fd_set argument expects the /first/ syscall argument 1938 * to be the number of fds in the array. This matches the 1939 * select syscall. 1940 */ 1941 fd_set *fds; 1942 int numfds = args[0]; 1943 size_t bytes = _howmany(numfds, _NFDBITS) * _NFDBITS; 1944 int i; 1945 1946 if ((fds = malloc(bytes)) == NULL) 1947 err(1, "Cannot malloc %zu bytes for fd_set array", 1948 bytes); 1949 if (get_struct(pid, args[sc->offset], fds, bytes) != -1) { 1950 fputs("{", fp); 1951 for (i = 0; i < numfds; i++) { 1952 if (FD_ISSET(i, fds)) 1953 fprintf(fp, " %d", i); 1954 } 1955 fputs(" }", fp); 1956 } else 1957 print_pointer(fp, args[sc->offset]); 1958 free(fds); 1959 break; 1960 } 1961 case Signal: 1962 fputs(strsig2(args[sc->offset]), fp); 1963 break; 1964 case Sigset: { 1965 sigset_t ss; 1966 int i, first; 1967 1968 if (get_struct(pid, args[sc->offset], (void *)&ss, 1969 sizeof(ss)) == -1) { 1970 print_pointer(fp, args[sc->offset]); 1971 break; 1972 } 1973 fputs("{ ", fp); 1974 first = 1; 1975 for (i = 1; i < sys_nsig; i++) { 1976 if (sigismember(&ss, i)) { 1977 fprintf(fp, "%s%s", !first ? "|" : "", 1978 strsig2(i)); 1979 first = 0; 1980 } 1981 } 1982 if (!first) 1983 fputc(' ', fp); 1984 fputc('}', fp); 1985 break; 1986 } 1987 case Sigprocmask: 1988 print_integer_arg(sysdecode_sigprocmask_how, fp, 1989 args[sc->offset]); 1990 break; 1991 case Fcntlflag: 1992 /* XXX: Output depends on the value of the previous argument. */ 1993 if (sysdecode_fcntl_arg_p(args[sc->offset - 1])) 1994 sysdecode_fcntl_arg(fp, args[sc->offset - 1], 1995 args[sc->offset], 16); 1996 break; 1997 case Open: 1998 print_mask_arg(sysdecode_open_flags, fp, args[sc->offset]); 1999 break; 2000 case Fcntl: 2001 print_integer_arg(sysdecode_fcntl_cmd, fp, args[sc->offset]); 2002 break; 2003 case Closerangeflags: 2004 print_mask_arg(sysdecode_close_range_flags, fp, args[sc->offset]); 2005 break; 2006 case Mprot: 2007 print_mask_arg(sysdecode_mmap_prot, fp, args[sc->offset]); 2008 break; 2009 case Mmapflags: 2010 print_mask_arg(sysdecode_mmap_flags, fp, args[sc->offset]); 2011 break; 2012 case Whence: 2013 print_integer_arg(sysdecode_whence, fp, args[sc->offset]); 2014 break; 2015 case ShmFlags: 2016 print_mask_arg(sysdecode_shmflags, fp, args[sc->offset]); 2017 break; 2018 case Sockdomain: 2019 print_integer_arg(sysdecode_socketdomain, fp, args[sc->offset]); 2020 break; 2021 case Socktype: 2022 print_mask_arg(sysdecode_socket_type, fp, args[sc->offset]); 2023 break; 2024 case Shutdown: 2025 print_integer_arg(sysdecode_shutdown_how, fp, args[sc->offset]); 2026 break; 2027 case Resource: 2028 print_integer_arg(sysdecode_rlimit, fp, args[sc->offset]); 2029 break; 2030 case RusageWho: 2031 print_integer_arg(sysdecode_getrusage_who, fp, args[sc->offset]); 2032 break; 2033 case Pathconf: 2034 print_integer_arg(sysdecode_pathconf_name, fp, args[sc->offset]); 2035 break; 2036 case Rforkflags: 2037 print_mask_arg(sysdecode_rfork_flags, fp, args[sc->offset]); 2038 break; 2039 case Sockaddr: { 2040 socklen_t len; 2041 2042 if (args[sc->offset] == 0) { 2043 fputs("NULL", fp); 2044 break; 2045 } 2046 2047 /* 2048 * Extract the address length from the next argument. If 2049 * this is an output sockaddr (OUT is set), then the 2050 * next argument is a pointer to a socklen_t. Otherwise 2051 * the next argument contains a socklen_t by value. 2052 */ 2053 if (sc->type & OUT) { 2054 if (get_struct(pid, args[sc->offset + 1], &len, 2055 sizeof(len)) == -1) { 2056 print_pointer(fp, args[sc->offset]); 2057 break; 2058 } 2059 } else 2060 len = args[sc->offset + 1]; 2061 2062 print_sockaddr(fp, trussinfo, args[sc->offset], len); 2063 break; 2064 } 2065 case Sigaction: { 2066 struct sigaction sa; 2067 2068 if (get_struct(pid, args[sc->offset], &sa, sizeof(sa)) != -1) { 2069 fputs("{ ", fp); 2070 if (sa.sa_handler == SIG_DFL) 2071 fputs("SIG_DFL", fp); 2072 else if (sa.sa_handler == SIG_IGN) 2073 fputs("SIG_IGN", fp); 2074 else 2075 fprintf(fp, "%p", sa.sa_handler); 2076 fprintf(fp, " %s ss_t }", 2077 xlookup_bits(sigaction_flags, sa.sa_flags)); 2078 } else 2079 print_pointer(fp, args[sc->offset]); 2080 break; 2081 } 2082 case Sigevent: { 2083 struct sigevent se; 2084 2085 if (get_struct(pid, args[sc->offset], &se, sizeof(se)) != -1) 2086 print_sigevent(fp, &se); 2087 else 2088 print_pointer(fp, args[sc->offset]); 2089 break; 2090 } 2091 case Kevent: { 2092 /* 2093 * XXX XXX: The size of the array is determined by either the 2094 * next syscall argument, or by the syscall return value, 2095 * depending on which argument number we are. This matches the 2096 * kevent syscall, but luckily that's the only syscall that uses 2097 * them. 2098 */ 2099 struct kevent *ke; 2100 int numevents = -1; 2101 size_t bytes; 2102 int i; 2103 2104 if (sc->offset == 1) 2105 numevents = args[sc->offset+1]; 2106 else if (sc->offset == 3 && retval[0] != -1) 2107 numevents = retval[0]; 2108 2109 if (numevents >= 0) { 2110 bytes = sizeof(struct kevent) * numevents; 2111 if ((ke = malloc(bytes)) == NULL) 2112 err(1, 2113 "Cannot malloc %zu bytes for kevent array", 2114 bytes); 2115 } else 2116 ke = NULL; 2117 if (numevents >= 0 && get_struct(pid, args[sc->offset], 2118 ke, bytes) != -1) { 2119 fputc('{', fp); 2120 for (i = 0; i < numevents; i++) { 2121 fputc(' ', fp); 2122 print_kevent(fp, &ke[i]); 2123 } 2124 fputs(" }", fp); 2125 } else { 2126 print_pointer(fp, args[sc->offset]); 2127 } 2128 free(ke); 2129 break; 2130 } 2131 case Kevent11: { 2132 struct freebsd11_kevent *ke11; 2133 struct kevent ke; 2134 int numevents = -1; 2135 size_t bytes; 2136 int i; 2137 2138 if (sc->offset == 1) 2139 numevents = args[sc->offset+1]; 2140 else if (sc->offset == 3 && retval[0] != -1) 2141 numevents = retval[0]; 2142 2143 if (numevents >= 0) { 2144 bytes = sizeof(struct freebsd11_kevent) * numevents; 2145 if ((ke11 = malloc(bytes)) == NULL) 2146 err(1, 2147 "Cannot malloc %zu bytes for kevent array", 2148 bytes); 2149 } else 2150 ke11 = NULL; 2151 memset(&ke, 0, sizeof(ke)); 2152 if (numevents >= 0 && get_struct(pid, args[sc->offset], 2153 ke11, bytes) != -1) { 2154 fputc('{', fp); 2155 for (i = 0; i < numevents; i++) { 2156 fputc(' ', fp); 2157 ke.ident = ke11[i].ident; 2158 ke.filter = ke11[i].filter; 2159 ke.flags = ke11[i].flags; 2160 ke.fflags = ke11[i].fflags; 2161 ke.data = ke11[i].data; 2162 ke.udata = ke11[i].udata; 2163 print_kevent(fp, &ke); 2164 } 2165 fputs(" }", fp); 2166 } else { 2167 print_pointer(fp, args[sc->offset]); 2168 } 2169 free(ke11); 2170 break; 2171 } 2172 case Stat: { 2173 struct stat st; 2174 2175 if (get_struct(pid, args[sc->offset], &st, sizeof(st)) 2176 != -1) { 2177 char mode[12]; 2178 2179 strmode(st.st_mode, mode); 2180 fprintf(fp, 2181 "{ mode=%s,inode=%ju,size=%jd,blksize=%ld }", mode, 2182 (uintmax_t)st.st_ino, (intmax_t)st.st_size, 2183 (long)st.st_blksize); 2184 } else { 2185 print_pointer(fp, args[sc->offset]); 2186 } 2187 break; 2188 } 2189 case Stat11: { 2190 struct freebsd11_stat st; 2191 2192 if (get_struct(pid, args[sc->offset], &st, sizeof(st)) 2193 != -1) { 2194 char mode[12]; 2195 2196 strmode(st.st_mode, mode); 2197 fprintf(fp, 2198 "{ mode=%s,inode=%ju,size=%jd,blksize=%ld }", mode, 2199 (uintmax_t)st.st_ino, (intmax_t)st.st_size, 2200 (long)st.st_blksize); 2201 } else { 2202 print_pointer(fp, args[sc->offset]); 2203 } 2204 break; 2205 } 2206 case StatFs: { 2207 unsigned int i; 2208 struct statfs buf; 2209 2210 if (get_struct(pid, args[sc->offset], &buf, 2211 sizeof(buf)) != -1) { 2212 char fsid[17]; 2213 2214 bzero(fsid, sizeof(fsid)); 2215 if (buf.f_fsid.val[0] != 0 || buf.f_fsid.val[1] != 0) { 2216 for (i = 0; i < sizeof(buf.f_fsid); i++) 2217 snprintf(&fsid[i*2], 2218 sizeof(fsid) - (i*2), "%02x", 2219 ((u_char *)&buf.f_fsid)[i]); 2220 } 2221 fprintf(fp, 2222 "{ fstypename=%s,mntonname=%s,mntfromname=%s," 2223 "fsid=%s }", buf.f_fstypename, buf.f_mntonname, 2224 buf.f_mntfromname, fsid); 2225 } else 2226 print_pointer(fp, args[sc->offset]); 2227 break; 2228 } 2229 2230 case Rusage: { 2231 struct rusage ru; 2232 2233 if (get_struct(pid, args[sc->offset], &ru, sizeof(ru)) 2234 != -1) { 2235 fprintf(fp, 2236 "{ u=%jd.%06ld,s=%jd.%06ld,in=%ld,out=%ld }", 2237 (intmax_t)ru.ru_utime.tv_sec, ru.ru_utime.tv_usec, 2238 (intmax_t)ru.ru_stime.tv_sec, ru.ru_stime.tv_usec, 2239 ru.ru_inblock, ru.ru_oublock); 2240 } else 2241 print_pointer(fp, args[sc->offset]); 2242 break; 2243 } 2244 case Rlimit: { 2245 struct rlimit rl; 2246 2247 if (get_struct(pid, args[sc->offset], &rl, sizeof(rl)) 2248 != -1) { 2249 fprintf(fp, "{ cur=%ju,max=%ju }", 2250 rl.rlim_cur, rl.rlim_max); 2251 } else 2252 print_pointer(fp, args[sc->offset]); 2253 break; 2254 } 2255 case ExitStatus: { 2256 int status; 2257 2258 if (get_struct(pid, args[sc->offset], &status, 2259 sizeof(status)) != -1) { 2260 fputs("{ ", fp); 2261 if (WIFCONTINUED(status)) 2262 fputs("CONTINUED", fp); 2263 else if (WIFEXITED(status)) 2264 fprintf(fp, "EXITED,val=%d", 2265 WEXITSTATUS(status)); 2266 else if (WIFSIGNALED(status)) 2267 fprintf(fp, "SIGNALED,sig=%s%s", 2268 strsig2(WTERMSIG(status)), 2269 WCOREDUMP(status) ? ",cored" : ""); 2270 else 2271 fprintf(fp, "STOPPED,sig=%s", 2272 strsig2(WTERMSIG(status))); 2273 fputs(" }", fp); 2274 } else 2275 print_pointer(fp, args[sc->offset]); 2276 break; 2277 } 2278 case Waitoptions: 2279 print_mask_arg(sysdecode_wait6_options, fp, args[sc->offset]); 2280 break; 2281 case Idtype: 2282 print_integer_arg(sysdecode_idtype, fp, args[sc->offset]); 2283 break; 2284 case Procctl: 2285 print_integer_arg(sysdecode_procctl_cmd, fp, args[sc->offset]); 2286 break; 2287 case Umtxop: { 2288 int rem; 2289 2290 if (print_mask_arg_part(sysdecode_umtx_op_flags, fp, 2291 args[sc->offset], &rem)) 2292 fprintf(fp, "|"); 2293 print_integer_arg(sysdecode_umtx_op, fp, rem); 2294 break; 2295 } 2296 case Atfd: 2297 print_integer_arg(sysdecode_atfd, fp, args[sc->offset]); 2298 break; 2299 case Atflags: 2300 print_mask_arg(sysdecode_atflags, fp, args[sc->offset]); 2301 break; 2302 case Accessmode: 2303 print_mask_arg(sysdecode_access_mode, fp, args[sc->offset]); 2304 break; 2305 case Sysarch: 2306 print_integer_arg(sysdecode_sysarch_number, fp, 2307 args[sc->offset]); 2308 break; 2309 case Sysctl: { 2310 char name[BUFSIZ]; 2311 int oid[CTL_MAXNAME + 2]; 2312 size_t len; 2313 2314 memset(name, 0, sizeof(name)); 2315 len = args[sc->offset + 1]; 2316 if (get_struct(pid, args[sc->offset], oid, 2317 len * sizeof(oid[0])) != -1) { 2318 fprintf(fp, "\""); 2319 if (oid[0] == CTL_SYSCTL) { 2320 fprintf(fp, "sysctl."); 2321 switch (oid[1]) { 2322 case CTL_SYSCTL_DEBUG: 2323 fprintf(fp, "debug"); 2324 break; 2325 case CTL_SYSCTL_NAME: 2326 fprintf(fp, "name "); 2327 print_sysctl_oid(fp, oid + 2, len - 2); 2328 break; 2329 case CTL_SYSCTL_NEXT: 2330 fprintf(fp, "next"); 2331 break; 2332 case CTL_SYSCTL_NAME2OID: 2333 fprintf(fp, "name2oid %s", 2334 get_string(pid, 2335 args[sc->offset + 4], 2336 args[sc->offset + 5])); 2337 break; 2338 case CTL_SYSCTL_OIDFMT: 2339 fprintf(fp, "oidfmt "); 2340 print_sysctl(fp, oid + 2, len - 2); 2341 break; 2342 case CTL_SYSCTL_OIDDESCR: 2343 fprintf(fp, "oiddescr "); 2344 print_sysctl(fp, oid + 2, len - 2); 2345 break; 2346 case CTL_SYSCTL_OIDLABEL: 2347 fprintf(fp, "oidlabel "); 2348 print_sysctl(fp, oid + 2, len - 2); 2349 break; 2350 case CTL_SYSCTL_NEXTNOSKIP: 2351 fprintf(fp, "nextnoskip"); 2352 break; 2353 default: 2354 print_sysctl(fp, oid + 1, len - 1); 2355 } 2356 } else { 2357 print_sysctl(fp, oid, len); 2358 } 2359 fprintf(fp, "\""); 2360 } 2361 break; 2362 } 2363 case PipeFds: 2364 /* 2365 * The pipe() system call in the kernel returns its 2366 * two file descriptors via return values. However, 2367 * the interface exposed by libc is that pipe() 2368 * accepts a pointer to an array of descriptors. 2369 * Format the output to match the libc API by printing 2370 * the returned file descriptors as a fake argument. 2371 * 2372 * Overwrite the first retval to signal a successful 2373 * return as well. 2374 */ 2375 fprintf(fp, "{ %d, %d }", (int)retval[0], (int)retval[1]); 2376 retval[0] = 0; 2377 break; 2378 case Utrace: { 2379 size_t len; 2380 void *utrace_addr; 2381 2382 len = args[sc->offset + 1]; 2383 utrace_addr = calloc(1, len); 2384 if (get_struct(pid, args[sc->offset], 2385 (void *)utrace_addr, len) != -1) 2386 print_utrace(fp, utrace_addr, len); 2387 else 2388 print_pointer(fp, args[sc->offset]); 2389 free(utrace_addr); 2390 break; 2391 } 2392 case IntArray: { 2393 int descriptors[16]; 2394 unsigned long i, ndescriptors; 2395 bool truncated; 2396 2397 ndescriptors = args[sc->offset + 1]; 2398 truncated = false; 2399 if (ndescriptors > nitems(descriptors)) { 2400 ndescriptors = nitems(descriptors); 2401 truncated = true; 2402 } 2403 if (get_struct(pid, args[sc->offset], 2404 descriptors, ndescriptors * sizeof(descriptors[0])) != -1) { 2405 fprintf(fp, "{"); 2406 for (i = 0; i < ndescriptors; i++) 2407 fprintf(fp, i == 0 ? " %d" : ", %d", 2408 descriptors[i]); 2409 fprintf(fp, truncated ? ", ... }" : " }"); 2410 } else 2411 print_pointer(fp, args[sc->offset]); 2412 break; 2413 } 2414 case Pipe2: 2415 print_mask_arg(sysdecode_pipe2_flags, fp, args[sc->offset]); 2416 break; 2417 case CapFcntlRights: { 2418 uint32_t rights; 2419 2420 if (sc->type & OUT) { 2421 if (get_struct(pid, args[sc->offset], &rights, 2422 sizeof(rights)) == -1) { 2423 print_pointer(fp, args[sc->offset]); 2424 break; 2425 } 2426 } else 2427 rights = args[sc->offset]; 2428 print_mask_arg32(sysdecode_cap_fcntlrights, fp, rights); 2429 break; 2430 } 2431 case Fadvice: 2432 print_integer_arg(sysdecode_fadvice, fp, args[sc->offset]); 2433 break; 2434 case FileFlags: { 2435 fflags_t rem; 2436 2437 if (!sysdecode_fileflags(fp, args[sc->offset], &rem)) 2438 fprintf(fp, "0x%x", rem); 2439 else if (rem != 0) 2440 fprintf(fp, "|0x%x", rem); 2441 break; 2442 } 2443 case Flockop: 2444 print_mask_arg(sysdecode_flock_operation, fp, args[sc->offset]); 2445 break; 2446 case Getfsstatmode: 2447 print_integer_arg(sysdecode_getfsstat_mode, fp, 2448 args[sc->offset]); 2449 break; 2450 case Itimerwhich: 2451 print_integer_arg(sysdecode_itimer, fp, args[sc->offset]); 2452 break; 2453 case Kldsymcmd: 2454 print_integer_arg(sysdecode_kldsym_cmd, fp, args[sc->offset]); 2455 break; 2456 case Kldunloadflags: 2457 print_integer_arg(sysdecode_kldunload_flags, fp, 2458 args[sc->offset]); 2459 break; 2460 case AiofsyncOp: 2461 fputs(xlookup(aio_fsync_ops, args[sc->offset]), fp); 2462 break; 2463 case LioMode: 2464 fputs(xlookup(lio_modes, args[sc->offset]), fp); 2465 break; 2466 case Madvice: 2467 print_integer_arg(sysdecode_madvice, fp, args[sc->offset]); 2468 break; 2469 case Socklent: 2470 fprintf(fp, "%u", (socklen_t)args[sc->offset]); 2471 break; 2472 case Sockprotocol: { 2473 const char *temp; 2474 int domain, protocol; 2475 2476 domain = args[sc->offset - 2]; 2477 protocol = args[sc->offset]; 2478 if (protocol == 0) { 2479 fputs("0", fp); 2480 } else { 2481 temp = sysdecode_socket_protocol(domain, protocol); 2482 if (temp) { 2483 fputs(temp, fp); 2484 } else { 2485 fprintf(fp, "%d", protocol); 2486 } 2487 } 2488 break; 2489 } 2490 case Sockoptlevel: 2491 print_integer_arg(sysdecode_sockopt_level, fp, 2492 args[sc->offset]); 2493 break; 2494 case Sockoptname: { 2495 const char *temp; 2496 int level, name; 2497 2498 level = args[sc->offset - 1]; 2499 name = args[sc->offset]; 2500 temp = sysdecode_sockopt_name(level, name); 2501 if (temp) { 2502 fputs(temp, fp); 2503 } else { 2504 fprintf(fp, "%d", name); 2505 } 2506 break; 2507 } 2508 case Msgflags: 2509 print_mask_arg(sysdecode_msg_flags, fp, args[sc->offset]); 2510 break; 2511 case CapRights: { 2512 cap_rights_t rights; 2513 2514 if (get_struct(pid, args[sc->offset], &rights, 2515 sizeof(rights)) != -1) { 2516 fputs("{ ", fp); 2517 sysdecode_cap_rights(fp, &rights); 2518 fputs(" }", fp); 2519 } else 2520 print_pointer(fp, args[sc->offset]); 2521 break; 2522 } 2523 case Acltype: 2524 print_integer_arg(sysdecode_acltype, fp, args[sc->offset]); 2525 break; 2526 case Extattrnamespace: 2527 print_integer_arg(sysdecode_extattrnamespace, fp, 2528 args[sc->offset]); 2529 break; 2530 case Minherit: 2531 print_integer_arg(sysdecode_minherit_inherit, fp, 2532 args[sc->offset]); 2533 break; 2534 case Mlockall: 2535 print_mask_arg(sysdecode_mlockall_flags, fp, args[sc->offset]); 2536 break; 2537 case Mountflags: 2538 print_mask_arg(sysdecode_mount_flags, fp, args[sc->offset]); 2539 break; 2540 case Msync: 2541 print_mask_arg(sysdecode_msync_flags, fp, args[sc->offset]); 2542 break; 2543 case Priowhich: 2544 print_integer_arg(sysdecode_prio_which, fp, args[sc->offset]); 2545 break; 2546 case Ptraceop: 2547 print_integer_arg(sysdecode_ptrace_request, fp, 2548 args[sc->offset]); 2549 break; 2550 case Sendfileflags: 2551 print_mask_arg(sysdecode_sendfile_flags, fp, args[sc->offset]); 2552 break; 2553 case Sendfilehdtr: { 2554 struct sf_hdtr hdtr; 2555 2556 if (get_struct(pid, args[sc->offset], &hdtr, sizeof(hdtr)) != 2557 -1) { 2558 fprintf(fp, "{"); 2559 print_iovec(fp, trussinfo, (uintptr_t)hdtr.headers, 2560 hdtr.hdr_cnt); 2561 print_iovec(fp, trussinfo, (uintptr_t)hdtr.trailers, 2562 hdtr.trl_cnt); 2563 fprintf(fp, "}"); 2564 } else 2565 print_pointer(fp, args[sc->offset]); 2566 break; 2567 } 2568 case Quotactlcmd: 2569 if (!sysdecode_quotactl_cmd(fp, args[sc->offset])) 2570 fprintf(fp, "%#x", (int)args[sc->offset]); 2571 break; 2572 case Reboothowto: 2573 print_mask_arg(sysdecode_reboot_howto, fp, args[sc->offset]); 2574 break; 2575 case Rtpriofunc: 2576 print_integer_arg(sysdecode_rtprio_function, fp, 2577 args[sc->offset]); 2578 break; 2579 case Schedpolicy: 2580 print_integer_arg(sysdecode_scheduler_policy, fp, 2581 args[sc->offset]); 2582 break; 2583 case Schedparam: { 2584 struct sched_param sp; 2585 2586 if (get_struct(pid, args[sc->offset], &sp, sizeof(sp)) != -1) 2587 fprintf(fp, "{ %d }", sp.sched_priority); 2588 else 2589 print_pointer(fp, args[sc->offset]); 2590 break; 2591 } 2592 case PSig: { 2593 int sig; 2594 2595 if (get_struct(pid, args[sc->offset], &sig, sizeof(sig)) == 0) 2596 fprintf(fp, "{ %s }", strsig2(sig)); 2597 else 2598 print_pointer(fp, args[sc->offset]); 2599 break; 2600 } 2601 case Siginfo: { 2602 siginfo_t si; 2603 2604 if (get_struct(pid, args[sc->offset], &si, sizeof(si)) != -1) { 2605 fprintf(fp, "{ signo=%s", strsig2(si.si_signo)); 2606 decode_siginfo(fp, &si); 2607 fprintf(fp, " }"); 2608 } else 2609 print_pointer(fp, args[sc->offset]); 2610 break; 2611 } 2612 case Iovec: 2613 /* 2614 * Print argument as an array of struct iovec, where the next 2615 * syscall argument is the number of elements of the array. 2616 */ 2617 2618 print_iovec(fp, trussinfo, args[sc->offset], 2619 (int)args[sc->offset + 1]); 2620 break; 2621 case Aiocb: { 2622 struct aiocb cb; 2623 2624 if (get_struct(pid, args[sc->offset], &cb, sizeof(cb)) != -1) 2625 print_aiocb(fp, &cb); 2626 else 2627 print_pointer(fp, args[sc->offset]); 2628 break; 2629 } 2630 case AiocbArray: { 2631 /* 2632 * Print argment as an array of pointers to struct aiocb, where 2633 * the next syscall argument is the number of elements. 2634 */ 2635 uintptr_t cbs[16]; 2636 unsigned int nent; 2637 bool truncated; 2638 2639 nent = args[sc->offset + 1]; 2640 truncated = false; 2641 if (nent > nitems(cbs)) { 2642 nent = nitems(cbs); 2643 truncated = true; 2644 } 2645 2646 if (get_struct(pid, args[sc->offset], cbs, sizeof(uintptr_t) * nent) != -1) { 2647 unsigned int i; 2648 fputs("[", fp); 2649 for (i = 0; i < nent; ++i) { 2650 struct aiocb cb; 2651 if (i > 0) 2652 fputc(',', fp); 2653 if (get_struct(pid, cbs[i], &cb, sizeof(cb)) != -1) 2654 print_aiocb(fp, &cb); 2655 else 2656 print_pointer(fp, cbs[i]); 2657 } 2658 if (truncated) 2659 fputs(",...", fp); 2660 fputs("]", fp); 2661 } else 2662 print_pointer(fp, args[sc->offset]); 2663 break; 2664 } 2665 case AiocbPointer: { 2666 /* 2667 * aio_waitcomplete(2) assigns a pointer to a pointer to struct 2668 * aiocb, so we need to handle the extra layer of indirection. 2669 */ 2670 uintptr_t cbp; 2671 struct aiocb cb; 2672 2673 if (get_struct(pid, args[sc->offset], &cbp, sizeof(cbp)) != -1) { 2674 if (get_struct(pid, cbp, &cb, sizeof(cb)) != -1) 2675 print_aiocb(fp, &cb); 2676 else 2677 print_pointer(fp, cbp); 2678 } else 2679 print_pointer(fp, args[sc->offset]); 2680 break; 2681 } 2682 case Sctpsndrcvinfo: { 2683 struct sctp_sndrcvinfo info; 2684 2685 if (get_struct(pid, args[sc->offset], 2686 &info, sizeof(struct sctp_sndrcvinfo)) == -1) { 2687 print_pointer(fp, args[sc->offset]); 2688 break; 2689 } 2690 print_sctp_sndrcvinfo(fp, sc->type & OUT, &info); 2691 break; 2692 } 2693 case Msghdr: { 2694 struct msghdr msghdr; 2695 2696 if (get_struct(pid, args[sc->offset], 2697 &msghdr, sizeof(struct msghdr)) == -1) { 2698 print_pointer(fp, args[sc->offset]); 2699 break; 2700 } 2701 fputs("{", fp); 2702 print_sockaddr(fp, trussinfo, (uintptr_t)msghdr.msg_name, msghdr.msg_namelen); 2703 fprintf(fp, ",%d,", msghdr.msg_namelen); 2704 print_iovec(fp, trussinfo, (uintptr_t)msghdr.msg_iov, msghdr.msg_iovlen); 2705 fprintf(fp, ",%d,", msghdr.msg_iovlen); 2706 print_cmsgs(fp, pid, sc->type & OUT, &msghdr); 2707 fprintf(fp, ",%u,", msghdr.msg_controllen); 2708 print_mask_arg(sysdecode_msg_flags, fp, msghdr.msg_flags); 2709 fputs("}", fp); 2710 break; 2711 } 2712 2713 default: 2714 errx(1, "Invalid argument type %d\n", sc->type & ARG_MASK); 2715 } 2716 fclose(fp); 2717 return (tmp); 2718 } 2719 2720 /* 2721 * Print (to outfile) the system call and its arguments. 2722 */ 2723 void 2724 print_syscall(struct trussinfo *trussinfo) 2725 { 2726 struct threadinfo *t; 2727 const char *name; 2728 char **s_args; 2729 int i, len, nargs; 2730 2731 t = trussinfo->curthread; 2732 2733 name = t->cs.sc->name; 2734 nargs = t->cs.nargs; 2735 s_args = t->cs.s_args; 2736 2737 len = print_line_prefix(trussinfo); 2738 len += fprintf(trussinfo->outfile, "%s(", name); 2739 2740 for (i = 0; i < nargs; i++) { 2741 if (s_args[i] != NULL) 2742 len += fprintf(trussinfo->outfile, "%s", s_args[i]); 2743 else 2744 len += fprintf(trussinfo->outfile, 2745 "<missing argument>"); 2746 len += fprintf(trussinfo->outfile, "%s", i < (nargs - 1) ? 2747 "," : ""); 2748 } 2749 len += fprintf(trussinfo->outfile, ")"); 2750 for (i = 0; i < 6 - (len / 8); i++) 2751 fprintf(trussinfo->outfile, "\t"); 2752 } 2753 2754 void 2755 print_syscall_ret(struct trussinfo *trussinfo, int error, syscallarg_t *retval) 2756 { 2757 struct timespec timediff; 2758 struct threadinfo *t; 2759 struct syscall *sc; 2760 2761 t = trussinfo->curthread; 2762 sc = t->cs.sc; 2763 if (trussinfo->flags & COUNTONLY) { 2764 timespecsub(&t->after, &t->before, &timediff); 2765 timespecadd(&sc->time, &timediff, &sc->time); 2766 sc->ncalls++; 2767 if (error != 0) 2768 sc->nerror++; 2769 return; 2770 } 2771 2772 print_syscall(trussinfo); 2773 fflush(trussinfo->outfile); 2774 2775 if (retval == NULL) { 2776 /* 2777 * This system call resulted in the current thread's exit, 2778 * so there is no return value or error to display. 2779 */ 2780 fprintf(trussinfo->outfile, "\n"); 2781 return; 2782 } 2783 2784 if (error == ERESTART) 2785 fprintf(trussinfo->outfile, " ERESTART\n"); 2786 else if (error == EJUSTRETURN) 2787 fprintf(trussinfo->outfile, " EJUSTRETURN\n"); 2788 else if (error != 0) { 2789 fprintf(trussinfo->outfile, " ERR#%d '%s'\n", 2790 sysdecode_freebsd_to_abi_errno(t->proc->abi->abi, error), 2791 strerror(error)); 2792 } else if (sc->decode.ret_type == 2 && 2793 t->proc->abi->pointer_size == 4) { 2794 off_t off; 2795 #if _BYTE_ORDER == _LITTLE_ENDIAN 2796 off = (off_t)retval[1] << 32 | retval[0]; 2797 #else 2798 off = (off_t)retval[0] << 32 | retval[1]; 2799 #endif 2800 fprintf(trussinfo->outfile, " = %jd (0x%jx)\n", (intmax_t)off, 2801 (intmax_t)off); 2802 } else { 2803 fprintf(trussinfo->outfile, " = %jd (0x%jx)\n", 2804 (intmax_t)retval[0], (intmax_t)retval[0]); 2805 } 2806 } 2807 2808 void 2809 print_summary(struct trussinfo *trussinfo) 2810 { 2811 struct timespec total = {0, 0}; 2812 struct syscall *sc; 2813 int ncall, nerror; 2814 2815 fprintf(trussinfo->outfile, "%-20s%15s%8s%8s\n", 2816 "syscall", "seconds", "calls", "errors"); 2817 ncall = nerror = 0; 2818 STAILQ_FOREACH(sc, &seen_syscalls, entries) { 2819 if (sc->ncalls) { 2820 fprintf(trussinfo->outfile, "%-20s%5jd.%09ld%8d%8d\n", 2821 sc->name, (intmax_t)sc->time.tv_sec, 2822 sc->time.tv_nsec, sc->ncalls, sc->nerror); 2823 timespecadd(&total, &sc->time, &total); 2824 ncall += sc->ncalls; 2825 nerror += sc->nerror; 2826 } 2827 } 2828 fprintf(trussinfo->outfile, "%20s%15s%8s%8s\n", 2829 "", "-------------", "-------", "-------"); 2830 fprintf(trussinfo->outfile, "%-20s%5jd.%09ld%8d%8d\n", 2831 "", (intmax_t)total.tv_sec, total.tv_nsec, ncall, nerror); 2832 } 2833