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 /* 35 * This file has routines used to print out system calls and their 36 * arguments. 37 */ 38 39 #include <sys/aio.h> 40 #include <sys/capsicum.h> 41 #include <sys/types.h> 42 #define _WANT_FREEBSD11_KEVENT 43 #include <sys/event.h> 44 #include <sys/ioccom.h> 45 #include <sys/mman.h> 46 #include <sys/mount.h> 47 #include <sys/poll.h> 48 #include <sys/procfs.h> 49 #include <sys/ptrace.h> 50 #include <sys/resource.h> 51 #include <sys/sched.h> 52 #include <sys/socket.h> 53 #define _WANT_FREEBSD11_STAT 54 #include <sys/stat.h> 55 #include <sys/sysctl.h> 56 #include <sys/time.h> 57 #include <sys/un.h> 58 #include <sys/wait.h> 59 #include <netinet/in.h> 60 #include <netinet/sctp.h> 61 #include <netlink/netlink.h> 62 #include <arpa/inet.h> 63 64 #include <assert.h> 65 #include <ctype.h> 66 #include <err.h> 67 #define _WANT_KERNEL_ERRNO 68 #include <errno.h> 69 #include <fcntl.h> 70 #include <signal.h> 71 #include <stdbool.h> 72 #include <stddef.h> 73 #include <stdio.h> 74 #include <stdlib.h> 75 #include <string.h> 76 #include <sysdecode.h> 77 #include <unistd.h> 78 #include <vis.h> 79 80 #include "truss.h" 81 #include "extern.h" 82 #include "syscall.h" 83 84 /* 85 * This should probably be in its own file, sorted alphabetically. 86 * 87 * Note: We only scan this table on the initial syscall number to calling 88 * convention lookup, i.e. once each time a new syscall is encountered. This 89 * is unlikely to be a performance issue, but if it is we could sort this array 90 * and use a binary search instead. 91 */ 92 static const struct syscall_decode decoded_syscalls[] = { 93 /* Native ABI */ 94 { .name = "__acl_aclcheck_fd", .ret_type = 1, .nargs = 3, 95 .args = { { Int, 0 }, { Acltype, 1 }, { Ptr, 2 } } }, 96 { .name = "__acl_aclcheck_file", .ret_type = 1, .nargs = 3, 97 .args = { { Name, 0 }, { Acltype, 1 }, { Ptr, 2 } } }, 98 { .name = "__acl_aclcheck_link", .ret_type = 1, .nargs = 3, 99 .args = { { Name, 0 }, { Acltype, 1 }, { Ptr, 2 } } }, 100 { .name = "__acl_delete_fd", .ret_type = 1, .nargs = 2, 101 .args = { { Int, 0 }, { Acltype, 1 } } }, 102 { .name = "__acl_delete_file", .ret_type = 1, .nargs = 2, 103 .args = { { Name, 0 }, { Acltype, 1 } } }, 104 { .name = "__acl_delete_link", .ret_type = 1, .nargs = 2, 105 .args = { { Name, 0 }, { Acltype, 1 } } }, 106 { .name = "__acl_get_fd", .ret_type = 1, .nargs = 3, 107 .args = { { Int, 0 }, { Acltype, 1 }, { Ptr, 2 } } }, 108 { .name = "__acl_get_file", .ret_type = 1, .nargs = 3, 109 .args = { { Name, 0 }, { Acltype, 1 }, { Ptr, 2 } } }, 110 { .name = "__acl_get_link", .ret_type = 1, .nargs = 3, 111 .args = { { Name, 0 }, { Acltype, 1 }, { Ptr, 2 } } }, 112 { .name = "__acl_set_fd", .ret_type = 1, .nargs = 3, 113 .args = { { Int, 0 }, { Acltype, 1 }, { Ptr, 2 } } }, 114 { .name = "__acl_set_file", .ret_type = 1, .nargs = 3, 115 .args = { { Name, 0 }, { Acltype, 1 }, { Ptr, 2 } } }, 116 { .name = "__acl_set_link", .ret_type = 1, .nargs = 3, 117 .args = { { Name, 0 }, { Acltype, 1 }, { Ptr, 2 } } }, 118 { .name = "__cap_rights_get", .ret_type = 1, .nargs = 3, 119 .args = { { Int, 0 }, { Int, 1 }, { CapRights | OUT, 2 } } }, 120 { .name = "__getcwd", .ret_type = 1, .nargs = 2, 121 .args = { { Name | OUT, 0 }, { Int, 1 } } }, 122 { .name = "__realpathat", .ret_type = 1, .nargs = 5, 123 .args = { { Atfd, 0 }, { Name | IN, 1 }, { Name | OUT, 2 }, 124 { Sizet, 3 }, { Int, 4} } }, 125 { .name = "_umtx_op", .ret_type = 1, .nargs = 5, 126 .args = { { Ptr, 0 }, { Umtxop, 1 }, { LongHex, 2 }, { Ptr, 3 }, 127 { Ptr, 4 } } }, 128 { .name = "accept", .ret_type = 1, .nargs = 3, 129 .args = { { Int, 0 }, { Sockaddr | OUT, 1 }, { Ptr | OUT, 2 } } }, 130 { .name = "access", .ret_type = 1, .nargs = 2, 131 .args = { { Name | IN, 0 }, { Accessmode, 1 } } }, 132 { .name = "aio_cancel", .ret_type = 1, .nargs = 2, 133 .args = { { Int, 0 }, { Aiocb, 1 } } }, 134 { .name = "aio_error", .ret_type = 1, .nargs = 1, 135 .args = { { Aiocb, 0 } } }, 136 { .name = "aio_fsync", .ret_type = 1, .nargs = 2, 137 .args = { { AiofsyncOp, 0 }, { Aiocb, 1 } } }, 138 { .name = "aio_mlock", .ret_type = 1, .nargs = 1, 139 .args = { { Aiocb, 0 } } }, 140 { .name = "aio_read", .ret_type = 1, .nargs = 1, 141 .args = { { Aiocb, 0 } } }, 142 { .name = "aio_return", .ret_type = 1, .nargs = 1, 143 .args = { { Aiocb, 0 } } }, 144 { .name = "aio_suspend", .ret_type = 1, .nargs = 3, 145 .args = { { AiocbArray, 0 }, { Int, 1 }, { Timespec, 2 } } }, 146 { .name = "aio_waitcomplete", .ret_type = 1, .nargs = 2, 147 .args = { { AiocbPointer | OUT, 0 }, { Timespec, 1 } } }, 148 { .name = "aio_write", .ret_type = 1, .nargs = 1, 149 .args = { { Aiocb, 0 } } }, 150 { .name = "bind", .ret_type = 1, .nargs = 3, 151 .args = { { Int, 0 }, { Sockaddr | IN, 1 }, { Socklent, 2 } } }, 152 { .name = "bindat", .ret_type = 1, .nargs = 4, 153 .args = { { Atfd, 0 }, { Int, 1 }, { Sockaddr | IN, 2 }, 154 { Int, 3 } } }, 155 { .name = "break", .ret_type = 1, .nargs = 1, 156 .args = { { Ptr, 0 } } }, 157 { .name = "cap_fcntls_get", .ret_type = 1, .nargs = 2, 158 .args = { { Int, 0 }, { CapFcntlRights | OUT, 1 } } }, 159 { .name = "cap_fcntls_limit", .ret_type = 1, .nargs = 2, 160 .args = { { Int, 0 }, { CapFcntlRights, 1 } } }, 161 { .name = "cap_getmode", .ret_type = 1, .nargs = 1, 162 .args = { { PUInt | OUT, 0 } } }, 163 { .name = "cap_rights_limit", .ret_type = 1, .nargs = 2, 164 .args = { { Int, 0 }, { CapRights, 1 } } }, 165 { .name = "chdir", .ret_type = 1, .nargs = 1, 166 .args = { { Name, 0 } } }, 167 { .name = "chflags", .ret_type = 1, .nargs = 2, 168 .args = { { Name | IN, 0 }, { FileFlags, 1 } } }, 169 { .name = "chflagsat", .ret_type = 1, .nargs = 4, 170 .args = { { Atfd, 0 }, { Name | IN, 1 }, { FileFlags, 2 }, 171 { Atflags, 3 } } }, 172 { .name = "chmod", .ret_type = 1, .nargs = 2, 173 .args = { { Name, 0 }, { Octal, 1 } } }, 174 { .name = "chown", .ret_type = 1, .nargs = 3, 175 .args = { { Name, 0 }, { Int, 1 }, { Int, 2 } } }, 176 { .name = "chroot", .ret_type = 1, .nargs = 1, 177 .args = { { Name, 0 } } }, 178 { .name = "clock_gettime", .ret_type = 1, .nargs = 2, 179 .args = { { Int, 0 }, { Timespec | OUT, 1 } } }, 180 { .name = "close", .ret_type = 1, .nargs = 1, 181 .args = { { Int, 0 } } }, 182 { .name = "closefrom", .ret_type = 1, .nargs = 1, 183 .args = { { Int, 0 } } }, 184 { .name = "close_range", .ret_type = 1, .nargs = 3, 185 .args = { { Int, 0 }, { Int, 1 }, { Closerangeflags, 2 } } }, 186 { .name = "compat11.fstat", .ret_type = 1, .nargs = 2, 187 .args = { { Int, 0 }, { Stat11 | OUT, 1 } } }, 188 { .name = "compat11.fstatat", .ret_type = 1, .nargs = 4, 189 .args = { { Atfd, 0 }, { Name | IN, 1 }, { Stat11 | OUT, 2 }, 190 { Atflags, 3 } } }, 191 { .name = "compat11.kevent", .ret_type = 1, .nargs = 6, 192 .args = { { Int, 0 }, { Kevent11, 1 }, { Int, 2 }, 193 { Kevent11 | OUT, 3 }, { Int, 4 }, { Timespec, 5 } } }, 194 { .name = "compat11.lstat", .ret_type = 1, .nargs = 2, 195 .args = { { Name | IN, 0 }, { Stat11 | OUT, 1 } } }, 196 { .name = "compat11.mknod", .ret_type = 1, .nargs = 3, 197 .args = { { Name, 0 }, { Octal, 1 }, { Int, 2 } } }, 198 { .name = "compat11.mknodat", .ret_type = 1, .nargs = 4, 199 .args = { { Atfd, 0 }, { Name, 1 }, { Octal, 2 }, { Int, 3 } } }, 200 { .name = "compat11.stat", .ret_type = 1, .nargs = 2, 201 .args = { { Name | IN, 0 }, { Stat11 | OUT, 1 } } }, 202 { .name = "connect", .ret_type = 1, .nargs = 3, 203 .args = { { Int, 0 }, { Sockaddr | IN, 1 }, { Socklent, 2 } } }, 204 { .name = "connectat", .ret_type = 1, .nargs = 4, 205 .args = { { Atfd, 0 }, { Int, 1 }, { Sockaddr | IN, 2 }, 206 { Int, 3 } } }, 207 { .name = "dup", .ret_type = 1, .nargs = 1, 208 .args = { { Int, 0 } } }, 209 { .name = "dup2", .ret_type = 1, .nargs = 2, 210 .args = { { Int, 0 }, { Int, 1 } } }, 211 { .name = "eaccess", .ret_type = 1, .nargs = 2, 212 .args = { { Name | IN, 0 }, { Accessmode, 1 } } }, 213 { .name = "execve", .ret_type = 1, .nargs = 3, 214 .args = { { Name | IN, 0 }, { ExecArgs | IN, 1 }, 215 { ExecEnv | IN, 2 } } }, 216 { .name = "exit", .ret_type = 0, .nargs = 1, 217 .args = { { Hex, 0 } } }, 218 { .name = "extattr_delete_fd", .ret_type = 1, .nargs = 3, 219 .args = { { Int, 0 }, { Extattrnamespace, 1 }, { Name, 2 } } }, 220 { .name = "extattr_delete_file", .ret_type = 1, .nargs = 3, 221 .args = { { Name, 0 }, { Extattrnamespace, 1 }, { Name, 2 } } }, 222 { .name = "extattr_delete_link", .ret_type = 1, .nargs = 3, 223 .args = { { Name, 0 }, { Extattrnamespace, 1 }, { Name, 2 } } }, 224 { .name = "extattr_get_fd", .ret_type = 1, .nargs = 5, 225 .args = { { Int, 0 }, { Extattrnamespace, 1 }, { Name, 2 }, 226 { BinString | OUT, 3 }, { Sizet, 4 } } }, 227 { .name = "extattr_get_file", .ret_type = 1, .nargs = 5, 228 .args = { { Name, 0 }, { Extattrnamespace, 1 }, { Name, 2 }, 229 { BinString | OUT, 3 }, { Sizet, 4 } } }, 230 { .name = "extattr_get_link", .ret_type = 1, .nargs = 5, 231 .args = { { Name, 0 }, { Extattrnamespace, 1 }, { Name, 2 }, 232 { BinString | OUT, 3 }, { Sizet, 4 } } }, 233 { .name = "extattr_list_fd", .ret_type = 1, .nargs = 4, 234 .args = { { Int, 0 }, { Extattrnamespace, 1 }, { BinString | OUT, 2 }, 235 { Sizet, 3 } } }, 236 { .name = "extattr_list_file", .ret_type = 1, .nargs = 4, 237 .args = { { Name, 0 }, { Extattrnamespace, 1 }, { BinString | OUT, 2 }, 238 { Sizet, 3 } } }, 239 { .name = "extattr_list_link", .ret_type = 1, .nargs = 4, 240 .args = { { Name, 0 }, { Extattrnamespace, 1 }, { BinString | OUT, 2 }, 241 { Sizet, 3 } } }, 242 { .name = "extattr_set_fd", .ret_type = 1, .nargs = 5, 243 .args = { { Int, 0 }, { Extattrnamespace, 1 }, { Name, 2 }, 244 { BinString | IN, 3 }, { Sizet, 4 } } }, 245 { .name = "extattr_set_file", .ret_type = 1, .nargs = 5, 246 .args = { { Name, 0 }, { Extattrnamespace, 1 }, { Name, 2 }, 247 { BinString | IN, 3 }, { Sizet, 4 } } }, 248 { .name = "extattr_set_link", .ret_type = 1, .nargs = 5, 249 .args = { { Name, 0 }, { Extattrnamespace, 1 }, { Name, 2 }, 250 { BinString | IN, 3 }, { Sizet, 4 } } }, 251 { .name = "extattrctl", .ret_type = 1, .nargs = 5, 252 .args = { { Name, 0 }, { Hex, 1 }, { Name, 2 }, 253 { Extattrnamespace, 3 }, { Name, 4 } } }, 254 { .name = "faccessat", .ret_type = 1, .nargs = 4, 255 .args = { { Atfd, 0 }, { Name | IN, 1 }, { Accessmode, 2 }, 256 { Atflags, 3 } } }, 257 { .name = "fchflags", .ret_type = 1, .nargs = 2, 258 .args = { { Int, 0 }, { FileFlags, 1 } } }, 259 { .name = "fchmod", .ret_type = 1, .nargs = 2, 260 .args = { { Int, 0 }, { Octal, 1 } } }, 261 { .name = "fchmodat", .ret_type = 1, .nargs = 4, 262 .args = { { Atfd, 0 }, { Name, 1 }, { Octal, 2 }, { Atflags, 3 } } }, 263 { .name = "fchown", .ret_type = 1, .nargs = 3, 264 .args = { { Int, 0 }, { Int, 1 }, { Int, 2 } } }, 265 { .name = "fchownat", .ret_type = 1, .nargs = 5, 266 .args = { { Atfd, 0 }, { Name, 1 }, { Int, 2 }, { Int, 3 }, 267 { Atflags, 4 } } }, 268 { .name = "fcntl", .ret_type = 1, .nargs = 3, 269 .args = { { Int, 0 }, { Fcntl, 1 }, { Fcntlflag, 2 } } }, 270 { .name = "fdatasync", .ret_type = 1, .nargs = 1, 271 .args = { { Int, 0 } } }, 272 { .name = "flock", .ret_type = 1, .nargs = 2, 273 .args = { { Int, 0 }, { Flockop, 1 } } }, 274 { .name = "fstat", .ret_type = 1, .nargs = 2, 275 .args = { { Int, 0 }, { Stat | OUT, 1 } } }, 276 { .name = "fstatat", .ret_type = 1, .nargs = 4, 277 .args = { { Atfd, 0 }, { Name | IN, 1 }, { Stat | OUT, 2 }, 278 { Atflags, 3 } } }, 279 { .name = "fstatfs", .ret_type = 1, .nargs = 2, 280 .args = { { Int, 0 }, { StatFs | OUT, 1 } } }, 281 { .name = "fsync", .ret_type = 1, .nargs = 1, 282 .args = { { Int, 0 } } }, 283 { .name = "ftruncate", .ret_type = 1, .nargs = 2, 284 .args = { { Int | IN, 0 }, { QuadHex | IN, 1 } } }, 285 { .name = "futimens", .ret_type = 1, .nargs = 2, 286 .args = { { Int, 0 }, { Timespec2 | IN, 1 } } }, 287 { .name = "futimes", .ret_type = 1, .nargs = 2, 288 .args = { { Int, 0 }, { Timeval2 | IN, 1 } } }, 289 { .name = "futimesat", .ret_type = 1, .nargs = 3, 290 .args = { { Atfd, 0 }, { Name | IN, 1 }, { Timeval2 | IN, 2 } } }, 291 { .name = "getdirentries", .ret_type = 1, .nargs = 4, 292 .args = { { Int, 0 }, { BinString | OUT, 1 }, { Int, 2 }, 293 { PQuadHex | OUT, 3 } } }, 294 { .name = "getfsstat", .ret_type = 1, .nargs = 3, 295 .args = { { Ptr, 0 }, { Long, 1 }, { Getfsstatmode, 2 } } }, 296 { .name = "getitimer", .ret_type = 1, .nargs = 2, 297 .args = { { Itimerwhich, 0 }, { Itimerval | OUT, 2 } } }, 298 { .name = "getpeername", .ret_type = 1, .nargs = 3, 299 .args = { { Int, 0 }, { Sockaddr | OUT, 1 }, { Ptr | OUT, 2 } } }, 300 { .name = "getpgid", .ret_type = 1, .nargs = 1, 301 .args = { { Int, 0 } } }, 302 { .name = "getpriority", .ret_type = 1, .nargs = 2, 303 .args = { { Priowhich, 0 }, { Int, 1 } } }, 304 { .name = "getrandom", .ret_type = 1, .nargs = 3, 305 .args = { { BinString | OUT, 0 }, { Sizet, 1 }, { UInt, 2 } } }, 306 { .name = "getrlimit", .ret_type = 1, .nargs = 2, 307 .args = { { Resource, 0 }, { Rlimit | OUT, 1 } } }, 308 { .name = "getrusage", .ret_type = 1, .nargs = 2, 309 .args = { { RusageWho, 0 }, { Rusage | OUT, 1 } } }, 310 { .name = "getsid", .ret_type = 1, .nargs = 1, 311 .args = { { Int, 0 } } }, 312 { .name = "getsockname", .ret_type = 1, .nargs = 3, 313 .args = { { Int, 0 }, { Sockaddr | OUT, 1 }, { Ptr | OUT, 2 } } }, 314 { .name = "getsockopt", .ret_type = 1, .nargs = 5, 315 .args = { { Int, 0 }, { Sockoptlevel, 1 }, { Sockoptname, 2 }, 316 { Ptr | OUT, 3 }, { Ptr | OUT, 4 } } }, 317 { .name = "gettimeofday", .ret_type = 1, .nargs = 2, 318 .args = { { Timeval | OUT, 0 }, { Ptr, 1 } } }, 319 { .name = "inotify_add_watch_at", .ret_type = 1, .nargs = 4, 320 .args = { { Int, 0 }, { Atfd, 1 }, { Name | IN, 2 }, 321 { Inotifyflags, 3 } } }, 322 { .name = "ioctl", .ret_type = 1, .nargs = 3, 323 .args = { { Int, 0 }, { Ioctl, 1 }, { Ptr, 2 } } }, 324 { .name = "kevent", .ret_type = 1, .nargs = 6, 325 .args = { { Int, 0 }, { Kevent, 1 }, { Int, 2 }, { Kevent | OUT, 3 }, 326 { Int, 4 }, { Timespec, 5 } } }, 327 { .name = "kill", .ret_type = 1, .nargs = 2, 328 .args = { { Int | IN, 0 }, { Signal | IN, 1 } } }, 329 { .name = "kldfind", .ret_type = 1, .nargs = 1, 330 .args = { { Name | IN, 0 } } }, 331 { .name = "kldfirstmod", .ret_type = 1, .nargs = 1, 332 .args = { { Int, 0 } } }, 333 { .name = "kldload", .ret_type = 1, .nargs = 1, 334 .args = { { Name | IN, 0 } } }, 335 { .name = "kldnext", .ret_type = 1, .nargs = 1, 336 .args = { { Int, 0 } } }, 337 { .name = "kldstat", .ret_type = 1, .nargs = 2, 338 .args = { { Int, 0 }, { Ptr, 1 } } }, 339 { .name = "kldsym", .ret_type = 1, .nargs = 3, 340 .args = { { Int, 0 }, { Kldsymcmd, 1 }, { Ptr, 2 } } }, 341 { .name = "kldunload", .ret_type = 1, .nargs = 1, 342 .args = { { Int, 0 } } }, 343 { .name = "kldunloadf", .ret_type = 1, .nargs = 2, 344 .args = { { Int, 0 }, { Kldunloadflags, 1 } } }, 345 { .name = "kse_release", .ret_type = 0, .nargs = 1, 346 .args = { { Timespec, 0 } } }, 347 { .name = "lchflags", .ret_type = 1, .nargs = 2, 348 .args = { { Name | IN, 0 }, { FileFlags, 1 } } }, 349 { .name = "lchmod", .ret_type = 1, .nargs = 2, 350 .args = { { Name, 0 }, { Octal, 1 } } }, 351 { .name = "lchown", .ret_type = 1, .nargs = 3, 352 .args = { { Name, 0 }, { Int, 1 }, { Int, 2 } } }, 353 { .name = "link", .ret_type = 1, .nargs = 2, 354 .args = { { Name, 0 }, { Name, 1 } } }, 355 { .name = "linkat", .ret_type = 1, .nargs = 5, 356 .args = { { Atfd, 0 }, { Name, 1 }, { Atfd, 2 }, { Name, 3 }, 357 { Atflags, 4 } } }, 358 { .name = "lio_listio", .ret_type = 1, .nargs = 4, 359 .args = { { LioMode, 0 }, { AiocbArray, 1 }, { Int, 2 }, 360 { Sigevent, 3 } } }, 361 { .name = "listen", .ret_type = 1, .nargs = 2, 362 .args = { { Int, 0 }, { Int, 1 } } }, 363 { .name = "lseek", .ret_type = 2, .nargs = 3, 364 .args = { { Int, 0 }, { QuadHex, 1 }, { Whence, 2 } } }, 365 { .name = "lstat", .ret_type = 1, .nargs = 2, 366 .args = { { Name | IN, 0 }, { Stat | OUT, 1 } } }, 367 { .name = "lutimes", .ret_type = 1, .nargs = 2, 368 .args = { { Name | IN, 0 }, { Timeval2 | IN, 1 } } }, 369 { .name = "madvise", .ret_type = 1, .nargs = 3, 370 .args = { { Ptr, 0 }, { Sizet, 1 }, { Madvice, 2 } } }, 371 { .name = "minherit", .ret_type = 1, .nargs = 3, 372 .args = { { Ptr, 0 }, { Sizet, 1 }, { Minherit, 2 } } }, 373 { .name = "mkdir", .ret_type = 1, .nargs = 2, 374 .args = { { Name, 0 }, { Octal, 1 } } }, 375 { .name = "mkdirat", .ret_type = 1, .nargs = 3, 376 .args = { { Atfd, 0 }, { Name, 1 }, { Octal, 2 } } }, 377 { .name = "mkfifo", .ret_type = 1, .nargs = 2, 378 .args = { { Name, 0 }, { Octal, 1 } } }, 379 { .name = "mkfifoat", .ret_type = 1, .nargs = 3, 380 .args = { { Atfd, 0 }, { Name, 1 }, { Octal, 2 } } }, 381 { .name = "mknod", .ret_type = 1, .nargs = 3, 382 .args = { { Name, 0 }, { Octal, 1 }, { Quad, 2 } } }, 383 { .name = "mknodat", .ret_type = 1, .nargs = 4, 384 .args = { { Atfd, 0 }, { Name, 1 }, { Octal, 2 }, { Quad, 3 } } }, 385 { .name = "mlock", .ret_type = 1, .nargs = 2, 386 .args = { { Ptr, 0 }, { Sizet, 1 } } }, 387 { .name = "mlockall", .ret_type = 1, .nargs = 1, 388 .args = { { Mlockall, 0 } } }, 389 { .name = "mmap", .ret_type = 1, .nargs = 6, 390 .args = { { Ptr, 0 }, { Sizet, 1 }, { Mprot, 2 }, { Mmapflags, 3 }, 391 { Int, 4 }, { QuadHex, 5 } } }, 392 { .name = "modfind", .ret_type = 1, .nargs = 1, 393 .args = { { Name | IN, 0 } } }, 394 { .name = "mount", .ret_type = 1, .nargs = 4, 395 .args = { { Name, 0 }, { Name, 1 }, { Mountflags, 2 }, { Ptr, 3 } } }, 396 { .name = "mprotect", .ret_type = 1, .nargs = 3, 397 .args = { { Ptr, 0 }, { Sizet, 1 }, { Mprot, 2 } } }, 398 { .name = "msync", .ret_type = 1, .nargs = 3, 399 .args = { { Ptr, 0 }, { Sizet, 1 }, { Msync, 2 } } }, 400 { .name = "munlock", .ret_type = 1, .nargs = 2, 401 .args = { { Ptr, 0 }, { Sizet, 1 } } }, 402 { .name = "munmap", .ret_type = 1, .nargs = 2, 403 .args = { { Ptr, 0 }, { Sizet, 1 } } }, 404 { .name = "nanosleep", .ret_type = 1, .nargs = 1, 405 .args = { { Timespec, 0 } } }, 406 { .name = "nmount", .ret_type = 1, .nargs = 3, 407 .args = { { Iovec | IN, 0 }, { UInt, 1 }, { Mountflags, 2 } } }, 408 { .name = "open", .ret_type = 1, .nargs = 3, 409 .args = { { Name | IN, 0 }, { Open, 1 }, { Octal, 2 } } }, 410 { .name = "openat", .ret_type = 1, .nargs = 4, 411 .args = { { Atfd, 0 }, { Name | IN, 1 }, { Open, 2 }, 412 { Octal, 3 } } }, 413 { .name = "pathconf", .ret_type = 1, .nargs = 2, 414 .args = { { Name | IN, 0 }, { Pathconf, 1 } } }, 415 { .name = "pipe", .ret_type = 1, .nargs = 1, 416 .args = { { PipeFds | OUT, 0 } } }, 417 { .name = "pipe2", .ret_type = 1, .nargs = 2, 418 .args = { { Ptr, 0 }, { Pipe2, 1 } } }, 419 { .name = "poll", .ret_type = 1, .nargs = 3, 420 .args = { { Pollfd, 0 }, { Int, 1 }, { Int, 2 } } }, 421 { .name = "posix_fadvise", .ret_type = 1, .nargs = 4, 422 .args = { { Int, 0 }, { QuadHex, 1 }, { QuadHex, 2 }, 423 { Fadvice, 3 } } }, 424 { .name = "posix_openpt", .ret_type = 1, .nargs = 1, 425 .args = { { Open, 0 } } }, 426 { .name = "ppoll", .ret_type = 1, .nargs = 4, 427 .args = { { Pollfd, 0 }, { Int, 1 }, { Timespec | IN, 2 }, 428 { Sigset | IN, 3 } } }, 429 { .name = "pread", .ret_type = 1, .nargs = 4, 430 .args = { { Int, 0 }, { BinString | OUT, 1 }, { Sizet, 2 }, 431 { QuadHex, 3 } } }, 432 { .name = "preadv", .ret_type = 1, .nargs = 4, 433 .args = { { Int, 0 }, { Iovec | OUT, 1 }, { Int, 2 }, 434 { QuadHex, 3 } } }, 435 { .name = "procctl", .ret_type = 1, .nargs = 4, 436 .args = { { Idtype, 0 }, { Quad, 1 }, { Procctl, 2 }, { Ptr, 3 } } }, 437 { .name = "ptrace", .ret_type = 1, .nargs = 4, 438 .args = { { Ptraceop, 0 }, { Int, 1 }, { Ptr, 2 }, { Int, 3 } } }, 439 { .name = "pwrite", .ret_type = 1, .nargs = 4, 440 .args = { { Int, 0 }, { BinString | IN, 1 }, { Sizet, 2 }, 441 { QuadHex, 3 } } }, 442 { .name = "pwritev", .ret_type = 1, .nargs = 4, 443 .args = { { Int, 0 }, { Iovec | IN, 1 }, { Int, 2 }, 444 { QuadHex, 3 } } }, 445 { .name = "quotactl", .ret_type = 1, .nargs = 4, 446 .args = { { Name, 0 }, { Quotactlcmd, 1 }, { Int, 2 }, { Ptr, 3 } } }, 447 { .name = "read", .ret_type = 1, .nargs = 3, 448 .args = { { Int, 0 }, { BinString | OUT, 1 }, { Sizet, 2 } } }, 449 { .name = "readlink", .ret_type = 1, .nargs = 3, 450 .args = { { Name, 0 }, { Readlinkres | OUT, 1 }, { Sizet, 2 } } }, 451 { .name = "readlinkat", .ret_type = 1, .nargs = 4, 452 .args = { { Atfd, 0 }, { Name, 1 }, { Readlinkres | OUT, 2 }, 453 { Sizet, 3 } } }, 454 { .name = "readv", .ret_type = 1, .nargs = 3, 455 .args = { { Int, 0 }, { Iovec | OUT, 1 }, { Int, 2 } } }, 456 { .name = "reboot", .ret_type = 1, .nargs = 1, 457 .args = { { Reboothowto, 0 } } }, 458 { .name = "recvfrom", .ret_type = 1, .nargs = 6, 459 .args = { { Int, 0 }, { BinString | OUT, 1 }, { Sizet, 2 }, 460 { Msgflags, 3 }, { Sockaddr | OUT, 4 }, 461 { Ptr | OUT, 5 } } }, 462 { .name = "recvmsg", .ret_type = 1, .nargs = 3, 463 .args = { { Int, 0 }, { Msghdr | OUT, 1 }, { Msgflags, 2 } } }, 464 { .name = "rename", .ret_type = 1, .nargs = 2, 465 .args = { { Name, 0 }, { Name, 1 } } }, 466 { .name = "renameat", .ret_type = 1, .nargs = 4, 467 .args = { { Atfd, 0 }, { Name, 1 }, { Atfd, 2 }, { Name, 3 } } }, 468 { .name = "rfork", .ret_type = 1, .nargs = 1, 469 .args = { { Rforkflags, 0 } } }, 470 { .name = "rmdir", .ret_type = 1, .nargs = 1, 471 .args = { { Name, 0 } } }, 472 { .name = "rtprio", .ret_type = 1, .nargs = 3, 473 .args = { { Rtpriofunc, 0 }, { Int, 1 }, { Ptr, 2 } } }, 474 { .name = "rtprio_thread", .ret_type = 1, .nargs = 3, 475 .args = { { Rtpriofunc, 0 }, { Int, 1 }, { Ptr, 2 } } }, 476 { .name = "sched_get_priority_max", .ret_type = 1, .nargs = 1, 477 .args = { { Schedpolicy, 0 } } }, 478 { .name = "sched_get_priority_min", .ret_type = 1, .nargs = 1, 479 .args = { { Schedpolicy, 0 } } }, 480 { .name = "sched_getparam", .ret_type = 1, .nargs = 2, 481 .args = { { Int, 0 }, { Schedparam | OUT, 1 } } }, 482 { .name = "sched_getscheduler", .ret_type = 1, .nargs = 1, 483 .args = { { Int, 0 } } }, 484 { .name = "sched_rr_get_interval", .ret_type = 1, .nargs = 2, 485 .args = { { Int, 0 }, { Timespec | OUT, 1 } } }, 486 { .name = "sched_setparam", .ret_type = 1, .nargs = 2, 487 .args = { { Int, 0 }, { Schedparam, 1 } } }, 488 { .name = "sched_setscheduler", .ret_type = 1, .nargs = 3, 489 .args = { { Int, 0 }, { Schedpolicy, 1 }, { Schedparam, 2 } } }, 490 { .name = "sctp_generic_recvmsg", .ret_type = 1, .nargs = 7, 491 .args = { { Int, 0 }, { Iovec | OUT, 1 }, { Int, 2 }, 492 { Sockaddr | OUT, 3 }, { Ptr | OUT, 4 }, 493 { Sctpsndrcvinfo | OUT, 5 }, { Ptr | OUT, 6 } } }, 494 { .name = "sctp_generic_sendmsg", .ret_type = 1, .nargs = 7, 495 .args = { { Int, 0 }, { BinString | IN, 1 }, { Int, 2 }, 496 { Sockaddr | IN, 3 }, { Socklent, 4 }, 497 { Sctpsndrcvinfo | IN, 5 }, { Msgflags, 6 } } }, 498 { .name = "sctp_generic_sendmsg_iov", .ret_type = 1, .nargs = 7, 499 .args = { { Int, 0 }, { Iovec | IN, 1 }, { Int, 2 }, 500 { Sockaddr | IN, 3 }, { Socklent, 4 }, 501 { Sctpsndrcvinfo | IN, 5 }, { Msgflags, 6 } } }, 502 { .name = "sendfile", .ret_type = 1, .nargs = 7, 503 .args = { { Int, 0 }, { Int, 1 }, { QuadHex, 2 }, { Sizet, 3 }, 504 { Sendfilehdtr, 4 }, { QuadHex | OUT, 5 }, 505 { Sendfileflags, 6 } } }, 506 { .name = "select", .ret_type = 1, .nargs = 5, 507 .args = { { Int, 0 }, { Fd_set, 1 }, { Fd_set, 2 }, { Fd_set, 3 }, 508 { Timeval, 4 } } }, 509 { .name = "sendmsg", .ret_type = 1, .nargs = 3, 510 .args = { { Int, 0 }, { Msghdr | IN, 1 }, { Msgflags, 2 } } }, 511 { .name = "sendto", .ret_type = 1, .nargs = 6, 512 .args = { { Int, 0 }, { BinString | IN, 1 }, { Sizet, 2 }, 513 { Msgflags, 3 }, { Sockaddr | IN, 4 }, 514 { Socklent | IN, 5 } } }, 515 { .name = "setitimer", .ret_type = 1, .nargs = 3, 516 .args = { { Itimerwhich, 0 }, { Itimerval, 1 }, 517 { Itimerval | OUT, 2 } } }, 518 { .name = "setpriority", .ret_type = 1, .nargs = 3, 519 .args = { { Priowhich, 0 }, { Int, 1 }, { Int, 2 } } }, 520 { .name = "setrlimit", .ret_type = 1, .nargs = 2, 521 .args = { { Resource, 0 }, { Rlimit | IN, 1 } } }, 522 { .name = "setsockopt", .ret_type = 1, .nargs = 5, 523 .args = { { Int, 0 }, { Sockoptlevel, 1 }, { Sockoptname, 2 }, 524 { Ptr | IN, 3 }, { Socklent, 4 } } }, 525 { .name = "shm_open", .ret_type = 1, .nargs = 3, 526 .args = { { ShmName | IN, 0 }, { Open, 1 }, { Octal, 2 } } }, 527 { .name = "shm_open2", .ret_type = 1, .nargs = 5, 528 .args = { { ShmName | IN, 0 }, { Open, 1 }, { Octal, 2 }, 529 { ShmFlags, 3 }, { Name | IN, 4 } } }, 530 { .name = "shm_rename", .ret_type = 1, .nargs = 3, 531 .args = { { Name | IN, 0 }, { Name | IN, 1 }, { Hex, 2 } } }, 532 { .name = "shm_unlink", .ret_type = 1, .nargs = 1, 533 .args = { { Name | IN, 0 } } }, 534 { .name = "shutdown", .ret_type = 1, .nargs = 2, 535 .args = { { Int, 0 }, { Shutdown, 1 } } }, 536 { .name = "sigaction", .ret_type = 1, .nargs = 3, 537 .args = { { Signal, 0 }, { Sigaction | IN, 1 }, 538 { Sigaction | OUT, 2 } } }, 539 { .name = "sigpending", .ret_type = 1, .nargs = 1, 540 .args = { { Sigset | OUT, 0 } } }, 541 { .name = "sigprocmask", .ret_type = 1, .nargs = 3, 542 .args = { { Sigprocmask, 0 }, { Sigset, 1 }, { Sigset | OUT, 2 } } }, 543 { .name = "sigqueue", .ret_type = 1, .nargs = 3, 544 .args = { { Int, 0 }, { Signal, 1 }, { LongHex, 2 } } }, 545 { .name = "sigreturn", .ret_type = 1, .nargs = 1, 546 .args = { { Ptr, 0 } } }, 547 { .name = "sigsuspend", .ret_type = 1, .nargs = 1, 548 .args = { { Sigset | IN, 0 } } }, 549 { .name = "sigtimedwait", .ret_type = 1, .nargs = 3, 550 .args = { { Sigset | IN, 0 }, { Siginfo | OUT, 1 }, 551 { Timespec | IN, 2 } } }, 552 { .name = "sigwait", .ret_type = 1, .nargs = 2, 553 .args = { { Sigset | IN, 0 }, { PSig | OUT, 1 } } }, 554 { .name = "sigwaitinfo", .ret_type = 1, .nargs = 2, 555 .args = { { Sigset | IN, 0 }, { Siginfo | OUT, 1 } } }, 556 { .name = "socket", .ret_type = 1, .nargs = 3, 557 .args = { { Sockdomain, 0 }, { Socktype, 1 }, { Sockprotocol, 2 } } }, 558 { .name = "stat", .ret_type = 1, .nargs = 2, 559 .args = { { Name | IN, 0 }, { Stat | OUT, 1 } } }, 560 { .name = "statfs", .ret_type = 1, .nargs = 2, 561 .args = { { Name | IN, 0 }, { StatFs | OUT, 1 } } }, 562 { .name = "symlink", .ret_type = 1, .nargs = 2, 563 .args = { { Name, 0 }, { Name, 1 } } }, 564 { .name = "symlinkat", .ret_type = 1, .nargs = 3, 565 .args = { { Name, 0 }, { Atfd, 1 }, { Name, 2 } } }, 566 { .name = "sysarch", .ret_type = 1, .nargs = 2, 567 .args = { { Sysarch, 0 }, { Ptr, 1 } } }, 568 { .name = "__sysctl", .ret_type = 1, .nargs = 6, 569 .args = { { Sysctl, 0 }, { Sizet, 1 }, { Ptr, 2 }, { Ptr, 3 }, 570 { Ptr, 4 }, { Sizet, 5 } } }, 571 { .name = "__sysctlbyname", .ret_type = 1, .nargs = 6, 572 .args = { { Name, 0 }, { Sizet, 1 }, { Ptr, 2 }, { Ptr, 3 }, 573 { Ptr, 4}, { Sizet, 5 } } }, 574 { .name = "thr_kill", .ret_type = 1, .nargs = 2, 575 .args = { { Long, 0 }, { Signal, 1 } } }, 576 { .name = "thr_self", .ret_type = 1, .nargs = 1, 577 .args = { { Ptr, 0 } } }, 578 { .name = "thr_set_name", .ret_type = 1, .nargs = 2, 579 .args = { { Long, 0 }, { Name, 1 } } }, 580 { .name = "truncate", .ret_type = 1, .nargs = 2, 581 .args = { { Name | IN, 0 }, { QuadHex | IN, 1 } } }, 582 { .name = "unlink", .ret_type = 1, .nargs = 1, 583 .args = { { Name, 0 } } }, 584 { .name = "unlinkat", .ret_type = 1, .nargs = 3, 585 .args = { { Atfd, 0 }, { Name, 1 }, { Atflags, 2 } } }, 586 { .name = "unmount", .ret_type = 1, .nargs = 2, 587 .args = { { Name, 0 }, { Mountflags, 1 } } }, 588 { .name = "utimensat", .ret_type = 1, .nargs = 4, 589 .args = { { Atfd, 0 }, { Name | IN, 1 }, { Timespec2 | IN, 2 }, 590 { Atflags, 3 } } }, 591 { .name = "utimes", .ret_type = 1, .nargs = 2, 592 .args = { { Name | IN, 0 }, { Timeval2 | IN, 1 } } }, 593 { .name = "utrace", .ret_type = 1, .nargs = 1, 594 .args = { { Utrace, 0 } } }, 595 { .name = "wait4", .ret_type = 1, .nargs = 4, 596 .args = { { Int, 0 }, { ExitStatus | OUT, 1 }, { Waitoptions, 2 }, 597 { Rusage | OUT, 3 } } }, 598 { .name = "wait6", .ret_type = 1, .nargs = 6, 599 .args = { { Idtype, 0 }, { Quad, 1 }, { ExitStatus | OUT, 2 }, 600 { Waitoptions, 3 }, { Rusage | OUT, 4 }, 601 { Siginfo | OUT, 5 } } }, 602 { .name = "write", .ret_type = 1, .nargs = 3, 603 .args = { { Int, 0 }, { BinString | IN, 1 }, { Sizet, 2 } } }, 604 { .name = "writev", .ret_type = 1, .nargs = 3, 605 .args = { { Int, 0 }, { Iovec | IN, 1 }, { Int, 2 } } }, 606 607 /* Linux ABI */ 608 { .name = "linux_access", .ret_type = 1, .nargs = 2, 609 .args = { { Name, 0 }, { Accessmode, 1 } } }, 610 { .name = "linux_execve", .ret_type = 1, .nargs = 3, 611 .args = { { Name | IN, 0 }, { ExecArgs | IN, 1 }, 612 { ExecEnv | IN, 2 } } }, 613 { .name = "linux_getitimer", .ret_type = 1, .nargs = 2, 614 .args = { { Itimerwhich, 0 }, { Itimerval | OUT, 2 } } }, 615 { .name = "linux_lseek", .ret_type = 2, .nargs = 3, 616 .args = { { Int, 0 }, { Int, 1 }, { Whence, 2 } } }, 617 { .name = "linux_mkdir", .ret_type = 1, .nargs = 2, 618 .args = { { Name | IN, 0 }, { Int, 1 } } }, 619 { .name = "linux_newfstat", .ret_type = 1, .nargs = 2, 620 .args = { { Int, 0 }, { Ptr | OUT, 1 } } }, 621 { .name = "linux_newlstat", .ret_type = 1, .nargs = 2, 622 .args = { { Name | IN, 0 }, { Ptr | OUT, 1 } } }, 623 { .name = "linux_newstat", .ret_type = 1, .nargs = 2, 624 .args = { { Name | IN, 0 }, { Ptr | OUT, 1 } } }, 625 { .name = "linux_open", .ret_type = 1, .nargs = 3, 626 .args = { { Name, 0 }, { Hex, 1 }, { Octal, 2 } } }, 627 { .name = "linux_readlink", .ret_type = 1, .nargs = 3, 628 .args = { { Name, 0 }, { Name | OUT, 1 }, { Sizet, 2 } } }, 629 { .name = "linux_setitimer", .ret_type = 1, .nargs = 3, 630 .args = { { Itimerwhich, 0 }, { Itimerval, 1 }, 631 { Itimerval | OUT, 2 } } }, 632 { .name = "linux_socketcall", .ret_type = 1, .nargs = 2, 633 .args = { { Int, 0 }, { LinuxSockArgs, 1 } } }, 634 { .name = "linux_stat64", .ret_type = 1, .nargs = 2, 635 .args = { { Name | IN, 0 }, { Ptr | OUT, 1 } } }, 636 }; 637 static STAILQ_HEAD(, syscall) seen_syscalls; 638 639 /* Xlat idea taken from strace */ 640 struct xlat { 641 int val; 642 const char *str; 643 }; 644 645 #define X(a) { a, #a }, 646 #define XEND { 0, NULL } 647 648 static struct xlat poll_flags[] = { 649 X(POLLSTANDARD) X(POLLIN) X(POLLPRI) X(POLLOUT) X(POLLERR) 650 X(POLLHUP) X(POLLNVAL) X(POLLRDNORM) X(POLLRDBAND) 651 X(POLLWRBAND) X(POLLINIGNEOF) X(POLLRDHUP) XEND 652 }; 653 654 static struct xlat sigaction_flags[] = { 655 X(SA_ONSTACK) X(SA_RESTART) X(SA_RESETHAND) X(SA_NOCLDSTOP) 656 X(SA_NODEFER) X(SA_NOCLDWAIT) X(SA_SIGINFO) XEND 657 }; 658 659 static struct xlat linux_socketcall_ops[] = { 660 X(LINUX_SOCKET) X(LINUX_BIND) X(LINUX_CONNECT) X(LINUX_LISTEN) 661 X(LINUX_ACCEPT) X(LINUX_GETSOCKNAME) X(LINUX_GETPEERNAME) 662 X(LINUX_SOCKETPAIR) X(LINUX_SEND) X(LINUX_RECV) X(LINUX_SENDTO) 663 X(LINUX_RECVFROM) X(LINUX_SHUTDOWN) X(LINUX_SETSOCKOPT) 664 X(LINUX_GETSOCKOPT) X(LINUX_SENDMSG) X(LINUX_RECVMSG) 665 XEND 666 }; 667 668 static struct xlat lio_modes[] = { 669 X(LIO_WAIT) X(LIO_NOWAIT) 670 XEND 671 }; 672 673 static struct xlat lio_opcodes[] = { 674 X(LIO_WRITE) X(LIO_READ) X(LIO_READV) X(LIO_WRITEV) X(LIO_NOP) 675 XEND 676 }; 677 678 static struct xlat aio_fsync_ops[] = { 679 X(O_SYNC) 680 XEND 681 }; 682 683 #undef X 684 #undef XEND 685 686 /* 687 * Searches an xlat array for a value, and returns it if found. Otherwise 688 * return a string representation. 689 */ 690 static const char * 691 lookup(struct xlat *xlat, int val, int base) 692 { 693 static char tmp[16]; 694 695 for (; xlat->str != NULL; xlat++) 696 if (xlat->val == val) 697 return (xlat->str); 698 switch (base) { 699 case 8: 700 sprintf(tmp, "0%o", val); 701 break; 702 case 16: 703 sprintf(tmp, "0x%x", val); 704 break; 705 case 10: 706 sprintf(tmp, "%u", val); 707 break; 708 default: 709 errx(1, "Unknown lookup base"); 710 } 711 return (tmp); 712 } 713 714 static const char * 715 xlookup(struct xlat *xlat, int val) 716 { 717 718 return (lookup(xlat, val, 16)); 719 } 720 721 /* 722 * Searches an xlat array containing bitfield values. Remaining bits 723 * set after removing the known ones are printed at the end: 724 * IN|0x400. 725 */ 726 static char * 727 xlookup_bits(struct xlat *xlat, int val) 728 { 729 int len, rem; 730 static char str[512]; 731 732 len = 0; 733 rem = val; 734 for (; xlat->str != NULL; xlat++) { 735 if ((xlat->val & rem) == xlat->val) { 736 /* 737 * Don't print the "all-bits-zero" string unless all 738 * bits are really zero. 739 */ 740 if (xlat->val == 0 && val != 0) 741 continue; 742 len += sprintf(str + len, "%s|", xlat->str); 743 rem &= ~(xlat->val); 744 } 745 } 746 747 /* 748 * If we have leftover bits or didn't match anything, print 749 * the remainder. 750 */ 751 if (rem || len == 0) 752 len += sprintf(str + len, "0x%x", rem); 753 if (len && str[len - 1] == '|') 754 len--; 755 str[len] = 0; 756 return (str); 757 } 758 759 static void 760 print_integer_arg(const char *(*decoder)(int), FILE *fp, int value) 761 { 762 const char *str; 763 764 str = decoder(value); 765 if (str != NULL) 766 fputs(str, fp); 767 else 768 fprintf(fp, "%d", value); 769 } 770 771 static bool 772 print_mask_arg_part(bool (*decoder)(FILE *, int, int *), FILE *fp, int value, 773 int *rem) 774 { 775 776 return (decoder(fp, value, rem)); 777 } 778 779 static void 780 print_mask_arg(bool (*decoder)(FILE *, int, int *), FILE *fp, int value) 781 { 782 int rem; 783 784 if (!print_mask_arg_part(decoder, fp, value, &rem)) 785 fprintf(fp, "0x%x", rem); 786 else if (rem != 0) 787 fprintf(fp, "|0x%x", rem); 788 } 789 790 static void 791 print_mask_arg32(bool (*decoder)(FILE *, uint32_t, uint32_t *), FILE *fp, 792 uint32_t value) 793 { 794 uint32_t rem; 795 796 if (!decoder(fp, value, &rem)) 797 fprintf(fp, "0x%x", rem); 798 else if (rem != 0) 799 fprintf(fp, "|0x%x", rem); 800 } 801 802 /* 803 * Add argument padding to subsequent system calls after Quad 804 * syscall arguments as needed. This used to be done by hand in the 805 * decoded_syscalls table which was ugly and error prone. It is 806 * simpler to do the fixup of offsets at initialization time than when 807 * decoding arguments. 808 */ 809 static void 810 quad_fixup(struct syscall_decode *sc) 811 { 812 int offset, prev; 813 u_int i; 814 815 offset = 0; 816 prev = -1; 817 for (i = 0; i < sc->nargs; i++) { 818 /* This arg type is a dummy that doesn't use offset. */ 819 if ((sc->args[i].type & ARG_MASK) == PipeFds) 820 continue; 821 822 assert(prev < sc->args[i].offset); 823 prev = sc->args[i].offset; 824 sc->args[i].offset += offset; 825 switch (sc->args[i].type & ARG_MASK) { 826 case Quad: 827 case QuadHex: 828 #if defined(__powerpc__) || defined(__arm__) || defined(__aarch64__) 829 /* 830 * 64-bit arguments on 32-bit powerpc and arm must be 831 * 64-bit aligned. If the current offset is 832 * not aligned, the calling convention inserts 833 * a 32-bit pad argument that should be skipped. 834 */ 835 if (sc->args[i].offset % 2 == 1) { 836 sc->args[i].offset++; 837 offset++; 838 } 839 #endif 840 offset++; 841 default: 842 break; 843 } 844 } 845 } 846 847 static struct syscall * 848 find_syscall(struct procabi *abi, u_int number) 849 { 850 struct extra_syscall *es; 851 852 if (number < nitems(abi->syscalls)) 853 return (abi->syscalls[number]); 854 STAILQ_FOREACH(es, &abi->extra_syscalls, entries) { 855 if (es->number == number) 856 return (es->sc); 857 } 858 return (NULL); 859 } 860 861 static void 862 add_syscall(struct procabi *abi, u_int number, struct syscall *sc) 863 { 864 struct extra_syscall *es; 865 866 /* 867 * quad_fixup() is currently needed for all 32-bit ABIs. 868 * TODO: This should probably be a function pointer inside struct 869 * procabi instead. 870 */ 871 if (abi->pointer_size == 4) 872 quad_fixup(&sc->decode); 873 874 if (number < nitems(abi->syscalls)) { 875 assert(abi->syscalls[number] == NULL); 876 abi->syscalls[number] = sc; 877 } else { 878 es = malloc(sizeof(*es)); 879 es->sc = sc; 880 es->number = number; 881 STAILQ_INSERT_TAIL(&abi->extra_syscalls, es, entries); 882 } 883 884 STAILQ_INSERT_HEAD(&seen_syscalls, sc, entries); 885 } 886 887 /* 888 * If/when the list gets big, it might be desirable to do it 889 * as a hash table or binary search. 890 */ 891 struct syscall * 892 get_syscall(struct threadinfo *t, u_int number, u_int nargs) 893 { 894 struct syscall *sc; 895 struct procabi *procabi; 896 const char *sysdecode_name; 897 const char *lookup_name; 898 const char *name; 899 u_int i; 900 901 procabi = t->proc->abi; 902 sc = find_syscall(procabi, number); 903 if (sc != NULL) 904 return (sc); 905 906 /* Memory is not explicitly deallocated, it's released on exit(). */ 907 sysdecode_name = sysdecode_syscallname(procabi->abi, number); 908 if (sysdecode_name == NULL) 909 asprintf(__DECONST(char **, &name), "#%d", number); 910 else 911 name = sysdecode_name; 912 913 sc = calloc(1, sizeof(*sc)); 914 sc->name = name; 915 916 /* Also decode compat syscalls arguments by stripping the prefix. */ 917 lookup_name = name; 918 if (procabi->compat_prefix != NULL && strncmp(procabi->compat_prefix, 919 name, strlen(procabi->compat_prefix)) == 0) 920 lookup_name += strlen(procabi->compat_prefix); 921 922 sc->trace = syscall_filter_match(name, number); 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 * Check whether a file descriptor belongs to an AF_NETLINK socket 1576 * for the current traced process. 1577 */ 1578 static int 1579 get_netlink_protocol(struct trussinfo *trussinfo, int num_fd) 1580 { 1581 struct procinfo *p = trussinfo->curthread->proc; 1582 struct fd_domain *f; 1583 1584 LIST_FOREACH(f, &p->fdlist, entries) { 1585 if (f->fd == num_fd && f->domain == AF_NETLINK) 1586 return (f->protocol); 1587 } 1588 return (-1); 1589 } 1590 1591 #define NETLINK_MAX_DECODE 4096 1592 1593 /* 1594 * Copy a potential Netlink message buffer from the traced process 1595 * and attempt to decode and print it. 1596 */ 1597 static bool 1598 print_netlink(FILE *fp, struct trussinfo *trussinfo, void *msg, size_t len, 1599 int protocol) 1600 { 1601 char *buf; 1602 pid_t pid = trussinfo->curthread->proc->pid; 1603 bool success = false; 1604 1605 if (msg == NULL || len == 0) 1606 return (false); 1607 1608 size_t read_len = MIN(len, NETLINK_MAX_DECODE); 1609 if (read_len == 0) 1610 return (false); 1611 1612 buf = malloc(read_len); 1613 if (buf == NULL) 1614 return (false); 1615 1616 if (get_struct(pid, (uintptr_t)msg, buf, read_len) == -1) { 1617 free(buf); 1618 return (false); 1619 } 1620 1621 if (sysdecode_netlink(fp, buf, read_len, protocol)) { 1622 success = true; 1623 } 1624 free(buf); 1625 1626 return (success); 1627 } 1628 1629 /* 1630 * Converts a syscall argument into a string. Said string is 1631 * allocated via malloc(), so needs to be free()'d. sc is 1632 * a pointer to the syscall description (see above); args is 1633 * an array of all of the system call arguments. 1634 */ 1635 char * 1636 print_arg(struct syscall_arg *sc, syscallarg_t *args, syscallarg_t *retval, 1637 struct trussinfo *trussinfo, struct syscall_decode *decode) 1638 { 1639 FILE *fp; 1640 char *tmp; 1641 size_t tmplen; 1642 pid_t pid; 1643 1644 fp = open_memstream(&tmp, &tmplen); 1645 pid = trussinfo->curthread->proc->pid; 1646 switch (sc->type & ARG_MASK) { 1647 case Hex: 1648 fprintf(fp, "0x%x", (int)args[sc->offset]); 1649 break; 1650 case Octal: 1651 fprintf(fp, "0%o", (int)args[sc->offset]); 1652 break; 1653 case Int: 1654 fprintf(fp, "%d", (int)args[sc->offset]); 1655 break; 1656 case UInt: 1657 fprintf(fp, "%u", (unsigned int)args[sc->offset]); 1658 break; 1659 case PUInt: { 1660 unsigned int val; 1661 1662 if (get_struct(pid, args[sc->offset], &val, 1663 sizeof(val)) == 0) 1664 fprintf(fp, "{ %u }", val); 1665 else 1666 print_pointer(fp, args[sc->offset]); 1667 break; 1668 } 1669 case LongHex: 1670 fprintf(fp, "0x%lx", (long)args[sc->offset]); 1671 break; 1672 case Long: 1673 fprintf(fp, "%ld", (long)args[sc->offset]); 1674 break; 1675 case Sizet: 1676 fprintf(fp, "%zu", (size_t)args[sc->offset]); 1677 break; 1678 case ShmName: 1679 /* Handle special SHM_ANON value. */ 1680 if ((char *)(uintptr_t)args[sc->offset] == SHM_ANON) { 1681 fprintf(fp, "SHM_ANON"); 1682 break; 1683 } 1684 /* FALLTHROUGH */ 1685 case Name: { 1686 /* NULL-terminated string. */ 1687 char *tmp2; 1688 1689 tmp2 = get_string(pid, args[sc->offset], 0); 1690 fprintf(fp, "\"%s\"", tmp2); 1691 free(tmp2); 1692 break; 1693 } 1694 case BinString: { 1695 if ((strcmp(decode->name, "sendto") == 0 || 1696 strcmp(decode->name, "recvfrom") == 0)) { 1697 1698 int protocol = 1699 get_netlink_protocol(trussinfo, (int)args[0]); 1700 1701 if ((protocol != -1) && 1702 print_netlink(fp, trussinfo, 1703 (void *)args[sc->offset], 1704 (size_t)args[sc->offset + 1], 1705 protocol)) 1706 break; 1707 } 1708 /* 1709 * Binary block of data that might have printable characters. 1710 * XXX If type|OUT, assume that the length is the syscall's 1711 * return value. Otherwise, assume that the length of the block 1712 * is in the next syscall argument. 1713 */ 1714 int max_string = trussinfo->strsize; 1715 char tmp2[max_string + 1], *tmp3; 1716 int len; 1717 int truncated = 0; 1718 1719 if (sc->type & OUT) 1720 len = retval[0]; 1721 else 1722 len = args[sc->offset + 1]; 1723 1724 /* 1725 * Don't print more than max_string characters, to avoid word 1726 * wrap. If we have to truncate put some ... after the string. 1727 */ 1728 if (len > max_string) { 1729 len = max_string; 1730 truncated = 1; 1731 } 1732 if (len && get_struct(pid, args[sc->offset], &tmp2, len) 1733 != -1) { 1734 tmp3 = malloc(len * 4 + 1); 1735 while (len) { 1736 if (strvisx(tmp3, tmp2, len, 1737 VIS_CSTYLE|VIS_TAB|VIS_NL) <= max_string) 1738 break; 1739 len--; 1740 truncated = 1; 1741 } 1742 fprintf(fp, "\"%s\"%s", tmp3, truncated ? 1743 "..." : ""); 1744 free(tmp3); 1745 } else { 1746 print_pointer(fp, args[sc->offset]); 1747 } 1748 break; 1749 } 1750 case ExecArgs: 1751 case ExecEnv: 1752 case StringArray: { 1753 psaddr_t addr; 1754 union { 1755 int32_t strarray32[PAGE_SIZE / sizeof(int32_t)]; 1756 int64_t strarray64[PAGE_SIZE / sizeof(int64_t)]; 1757 char buf[PAGE_SIZE]; 1758 } u; 1759 char *string; 1760 size_t len; 1761 u_int first, i; 1762 size_t pointer_size = 1763 trussinfo->curthread->proc->abi->pointer_size; 1764 1765 /* 1766 * Only parse argv[] and environment arrays from exec calls 1767 * if requested. 1768 */ 1769 if (((sc->type & ARG_MASK) == ExecArgs && 1770 (trussinfo->flags & EXECVEARGS) == 0) || 1771 ((sc->type & ARG_MASK) == ExecEnv && 1772 (trussinfo->flags & EXECVEENVS) == 0)) { 1773 print_pointer(fp, args[sc->offset]); 1774 break; 1775 } 1776 1777 /* 1778 * Read a page of pointers at a time. Punt if the top-level 1779 * pointer is not aligned. Note that the first read is of 1780 * a partial page. 1781 */ 1782 addr = args[sc->offset]; 1783 if (!__is_aligned(addr, pointer_size)) { 1784 print_pointer(fp, args[sc->offset]); 1785 break; 1786 } 1787 1788 len = PAGE_SIZE - (addr & PAGE_MASK); 1789 if (get_struct(pid, addr, u.buf, len) == -1) { 1790 print_pointer(fp, args[sc->offset]); 1791 break; 1792 } 1793 assert(len > 0); 1794 1795 fputc('[', fp); 1796 first = 1; 1797 i = 0; 1798 for (;;) { 1799 psaddr_t straddr; 1800 if (pointer_size == 4) { 1801 straddr = user_ptr32_to_psaddr(u.strarray32[i]); 1802 } else if (pointer_size == 8) { 1803 straddr = (psaddr_t)u.strarray64[i]; 1804 } else { 1805 errx(1, "Unsupported pointer size: %zu", 1806 pointer_size); 1807 } 1808 1809 /* Stop once we read the first NULL pointer. */ 1810 if (straddr == 0) 1811 break; 1812 string = get_string(pid, straddr, 0); 1813 fprintf(fp, "%s \"%s\"", first ? "" : ",", string); 1814 free(string); 1815 first = 0; 1816 1817 i++; 1818 if (i == len / pointer_size) { 1819 addr += len; 1820 len = PAGE_SIZE; 1821 if (get_struct(pid, addr, u.buf, len) == -1) { 1822 fprintf(fp, ", <inval>"); 1823 break; 1824 } 1825 i = 0; 1826 } 1827 } 1828 fputs(" ]", fp); 1829 break; 1830 } 1831 case Quad: 1832 case QuadHex: { 1833 uint64_t value; 1834 size_t pointer_size = 1835 trussinfo->curthread->proc->abi->pointer_size; 1836 1837 if (pointer_size == 4) { 1838 #if _BYTE_ORDER == _LITTLE_ENDIAN 1839 value = (uint64_t)args[sc->offset + 1] << 32 | 1840 args[sc->offset]; 1841 #else 1842 value = (uint64_t)args[sc->offset] << 32 | 1843 args[sc->offset + 1]; 1844 #endif 1845 } else { 1846 value = (uint64_t)args[sc->offset]; 1847 } 1848 if ((sc->type & ARG_MASK) == Quad) 1849 fprintf(fp, "%jd", (intmax_t)value); 1850 else 1851 fprintf(fp, "0x%jx", (intmax_t)value); 1852 break; 1853 } 1854 case PQuadHex: { 1855 uint64_t val; 1856 1857 if (get_struct(pid, args[sc->offset], &val, 1858 sizeof(val)) == 0) 1859 fprintf(fp, "{ 0x%jx }", (uintmax_t)val); 1860 else 1861 print_pointer(fp, args[sc->offset]); 1862 break; 1863 } 1864 case Ptr: 1865 print_pointer(fp, args[sc->offset]); 1866 break; 1867 case Readlinkres: { 1868 char *tmp2; 1869 1870 if (retval[0] == -1) 1871 break; 1872 tmp2 = get_string(pid, args[sc->offset], retval[0]); 1873 fprintf(fp, "\"%s\"", tmp2); 1874 free(tmp2); 1875 break; 1876 } 1877 case Ioctl: { 1878 const char *temp; 1879 unsigned long cmd; 1880 1881 cmd = args[sc->offset]; 1882 temp = sysdecode_ioctlname(cmd); 1883 if (temp) 1884 fputs(temp, fp); 1885 else { 1886 fprintf(fp, "0x%lx { IO%s%s 0x%lx('%c'), %lu, %lu }", 1887 cmd, cmd & IOC_OUT ? "R" : "", 1888 cmd & IOC_IN ? "W" : "", IOCGROUP(cmd), 1889 isprint(IOCGROUP(cmd)) ? (char)IOCGROUP(cmd) : '?', 1890 cmd & 0xFF, IOCPARM_LEN(cmd)); 1891 } 1892 break; 1893 } 1894 case Timespec: { 1895 struct timespec ts; 1896 1897 if (get_struct(pid, args[sc->offset], &ts, sizeof(ts)) != -1) 1898 fprintf(fp, "{ %jd.%09ld }", (intmax_t)ts.tv_sec, 1899 ts.tv_nsec); 1900 else 1901 print_pointer(fp, args[sc->offset]); 1902 break; 1903 } 1904 case Timespec2: { 1905 struct timespec ts[2]; 1906 const char *sep; 1907 unsigned int i; 1908 1909 if (get_struct(pid, args[sc->offset], &ts, sizeof(ts)) != -1) { 1910 fputs("{ ", fp); 1911 sep = ""; 1912 for (i = 0; i < nitems(ts); i++) { 1913 fputs(sep, fp); 1914 sep = ", "; 1915 switch (ts[i].tv_nsec) { 1916 case UTIME_NOW: 1917 fprintf(fp, "UTIME_NOW"); 1918 break; 1919 case UTIME_OMIT: 1920 fprintf(fp, "UTIME_OMIT"); 1921 break; 1922 default: 1923 fprintf(fp, "%jd.%09ld", 1924 (intmax_t)ts[i].tv_sec, 1925 ts[i].tv_nsec); 1926 break; 1927 } 1928 } 1929 fputs(" }", fp); 1930 } else 1931 print_pointer(fp, args[sc->offset]); 1932 break; 1933 } 1934 case Timeval: { 1935 struct timeval tv; 1936 1937 if (get_struct(pid, args[sc->offset], &tv, sizeof(tv)) != -1) 1938 fprintf(fp, "{ %jd.%06ld }", (intmax_t)tv.tv_sec, 1939 tv.tv_usec); 1940 else 1941 print_pointer(fp, args[sc->offset]); 1942 break; 1943 } 1944 case Timeval2: { 1945 struct timeval tv[2]; 1946 1947 if (get_struct(pid, args[sc->offset], &tv, sizeof(tv)) != -1) 1948 fprintf(fp, "{ %jd.%06ld, %jd.%06ld }", 1949 (intmax_t)tv[0].tv_sec, tv[0].tv_usec, 1950 (intmax_t)tv[1].tv_sec, tv[1].tv_usec); 1951 else 1952 print_pointer(fp, args[sc->offset]); 1953 break; 1954 } 1955 case Itimerval: { 1956 struct itimerval itv; 1957 1958 if (get_struct(pid, args[sc->offset], &itv, sizeof(itv)) != -1) 1959 fprintf(fp, "{ %jd.%06ld, %jd.%06ld }", 1960 (intmax_t)itv.it_interval.tv_sec, 1961 itv.it_interval.tv_usec, 1962 (intmax_t)itv.it_value.tv_sec, 1963 itv.it_value.tv_usec); 1964 else 1965 print_pointer(fp, args[sc->offset]); 1966 break; 1967 } 1968 case LinuxSockArgs: 1969 { 1970 struct linux_socketcall_args largs; 1971 1972 if (get_struct(pid, args[sc->offset], (void *)&largs, 1973 sizeof(largs)) != -1) 1974 fprintf(fp, "{ %s, 0x%lx }", 1975 lookup(linux_socketcall_ops, largs.what, 10), 1976 (long unsigned int)largs.args); 1977 else 1978 print_pointer(fp, args[sc->offset]); 1979 break; 1980 } 1981 case Pollfd: { 1982 /* 1983 * XXX: A Pollfd argument expects the /next/ syscall argument 1984 * to be the number of fds in the array. This matches the poll 1985 * syscall. 1986 */ 1987 struct pollfd *pfd; 1988 int numfds = args[sc->offset + 1]; 1989 size_t bytes = sizeof(struct pollfd) * numfds; 1990 int i; 1991 1992 if ((pfd = malloc(bytes)) == NULL) 1993 err(1, "Cannot malloc %zu bytes for pollfd array", 1994 bytes); 1995 if (get_struct(pid, args[sc->offset], pfd, bytes) != -1) { 1996 fputs("{", fp); 1997 for (i = 0; i < numfds; i++) { 1998 fprintf(fp, " %d/%s", pfd[i].fd, 1999 xlookup_bits(poll_flags, pfd[i].events)); 2000 } 2001 fputs(" }", fp); 2002 } else { 2003 print_pointer(fp, args[sc->offset]); 2004 } 2005 free(pfd); 2006 break; 2007 } 2008 case Fd_set: { 2009 /* 2010 * XXX: A Fd_set argument expects the /first/ syscall argument 2011 * to be the number of fds in the array. This matches the 2012 * select syscall. 2013 */ 2014 fd_set *fds; 2015 int numfds = args[0]; 2016 size_t bytes = _howmany(numfds, _NFDBITS) * _NFDBITS; 2017 int i; 2018 2019 if ((fds = malloc(bytes)) == NULL) 2020 err(1, "Cannot malloc %zu bytes for fd_set array", 2021 bytes); 2022 if (get_struct(pid, args[sc->offset], fds, bytes) != -1) { 2023 fputs("{", fp); 2024 for (i = 0; i < numfds; i++) { 2025 if (FD_ISSET(i, fds)) 2026 fprintf(fp, " %d", i); 2027 } 2028 fputs(" }", fp); 2029 } else 2030 print_pointer(fp, args[sc->offset]); 2031 free(fds); 2032 break; 2033 } 2034 case Signal: 2035 fputs(strsig2(args[sc->offset]), fp); 2036 break; 2037 case Sigset: { 2038 sigset_t ss; 2039 int i, first; 2040 2041 if (get_struct(pid, args[sc->offset], (void *)&ss, 2042 sizeof(ss)) == -1) { 2043 print_pointer(fp, args[sc->offset]); 2044 break; 2045 } 2046 fputs("{ ", fp); 2047 first = 1; 2048 for (i = 1; i < sys_nsig; i++) { 2049 if (sigismember(&ss, i)) { 2050 fprintf(fp, "%s%s", !first ? "|" : "", 2051 strsig2(i)); 2052 first = 0; 2053 } 2054 } 2055 if (!first) 2056 fputc(' ', fp); 2057 fputc('}', fp); 2058 break; 2059 } 2060 case Sigprocmask: 2061 print_integer_arg(sysdecode_sigprocmask_how, fp, 2062 args[sc->offset]); 2063 break; 2064 case Fcntlflag: 2065 /* XXX: Output depends on the value of the previous argument. */ 2066 if (sysdecode_fcntl_arg_p(args[sc->offset - 1])) 2067 sysdecode_fcntl_arg(fp, args[sc->offset - 1], 2068 args[sc->offset], 16); 2069 break; 2070 case Open: 2071 print_mask_arg(sysdecode_open_flags, fp, args[sc->offset]); 2072 break; 2073 case Fcntl: 2074 print_integer_arg(sysdecode_fcntl_cmd, fp, args[sc->offset]); 2075 break; 2076 case Closerangeflags: 2077 print_mask_arg(sysdecode_close_range_flags, fp, args[sc->offset]); 2078 break; 2079 case Mprot: 2080 print_mask_arg(sysdecode_mmap_prot, fp, args[sc->offset]); 2081 break; 2082 case Mmapflags: 2083 print_mask_arg(sysdecode_mmap_flags, fp, args[sc->offset]); 2084 break; 2085 case Whence: 2086 print_integer_arg(sysdecode_whence, fp, args[sc->offset]); 2087 break; 2088 case ShmFlags: 2089 print_mask_arg(sysdecode_shmflags, fp, args[sc->offset]); 2090 break; 2091 case Sockdomain: 2092 print_integer_arg(sysdecode_socketdomain, fp, args[sc->offset]); 2093 break; 2094 case Socktype: 2095 print_mask_arg(sysdecode_socket_type, fp, args[sc->offset]); 2096 break; 2097 case Shutdown: 2098 print_integer_arg(sysdecode_shutdown_how, fp, args[sc->offset]); 2099 break; 2100 case Resource: 2101 print_integer_arg(sysdecode_rlimit, fp, args[sc->offset]); 2102 break; 2103 case RusageWho: 2104 print_integer_arg(sysdecode_getrusage_who, fp, args[sc->offset]); 2105 break; 2106 case Pathconf: 2107 print_integer_arg(sysdecode_pathconf_name, fp, args[sc->offset]); 2108 break; 2109 case Rforkflags: 2110 print_mask_arg(sysdecode_rfork_flags, fp, args[sc->offset]); 2111 break; 2112 case Sockaddr: { 2113 socklen_t len; 2114 2115 if (args[sc->offset] == 0) { 2116 fputs("NULL", fp); 2117 break; 2118 } 2119 2120 /* 2121 * Extract the address length from the next argument. If 2122 * this is an output sockaddr (OUT is set), then the 2123 * next argument is a pointer to a socklen_t. Otherwise 2124 * the next argument contains a socklen_t by value. 2125 */ 2126 if (sc->type & OUT) { 2127 if (get_struct(pid, args[sc->offset + 1], &len, 2128 sizeof(len)) == -1) { 2129 print_pointer(fp, args[sc->offset]); 2130 break; 2131 } 2132 } else 2133 len = args[sc->offset + 1]; 2134 2135 print_sockaddr(fp, trussinfo, args[sc->offset], len); 2136 break; 2137 } 2138 case Sigaction: { 2139 struct sigaction sa; 2140 2141 if (get_struct(pid, args[sc->offset], &sa, sizeof(sa)) != -1) { 2142 fputs("{ ", fp); 2143 if (sa.sa_handler == SIG_DFL) 2144 fputs("SIG_DFL", fp); 2145 else if (sa.sa_handler == SIG_IGN) 2146 fputs("SIG_IGN", fp); 2147 else 2148 fprintf(fp, "%p", sa.sa_handler); 2149 fprintf(fp, " %s ss_t }", 2150 xlookup_bits(sigaction_flags, sa.sa_flags)); 2151 } else 2152 print_pointer(fp, args[sc->offset]); 2153 break; 2154 } 2155 case Sigevent: { 2156 struct sigevent se; 2157 2158 if (get_struct(pid, args[sc->offset], &se, sizeof(se)) != -1) 2159 print_sigevent(fp, &se); 2160 else 2161 print_pointer(fp, args[sc->offset]); 2162 break; 2163 } 2164 case Kevent: { 2165 /* 2166 * XXX XXX: The size of the array is determined by either the 2167 * next syscall argument, or by the syscall return value, 2168 * depending on which argument number we are. This matches the 2169 * kevent syscall, but luckily that's the only syscall that uses 2170 * them. 2171 */ 2172 struct kevent *ke; 2173 int numevents = -1; 2174 size_t bytes; 2175 int i; 2176 2177 if (sc->offset == 1) 2178 numevents = args[sc->offset+1]; 2179 else if (sc->offset == 3 && retval[0] != -1) 2180 numevents = retval[0]; 2181 2182 if (numevents >= 0) { 2183 bytes = sizeof(struct kevent) * numevents; 2184 if ((ke = malloc(bytes)) == NULL) 2185 err(1, 2186 "Cannot malloc %zu bytes for kevent array", 2187 bytes); 2188 } else 2189 ke = NULL; 2190 if (numevents >= 0 && get_struct(pid, args[sc->offset], 2191 ke, bytes) != -1) { 2192 fputc('{', fp); 2193 for (i = 0; i < numevents; i++) { 2194 fputc(' ', fp); 2195 print_kevent(fp, &ke[i]); 2196 } 2197 fputs(" }", fp); 2198 } else { 2199 print_pointer(fp, args[sc->offset]); 2200 } 2201 free(ke); 2202 break; 2203 } 2204 case Kevent11: { 2205 struct freebsd11_kevent *ke11; 2206 struct kevent ke; 2207 int numevents = -1; 2208 size_t bytes; 2209 int i; 2210 2211 if (sc->offset == 1) 2212 numevents = args[sc->offset+1]; 2213 else if (sc->offset == 3 && retval[0] != -1) 2214 numevents = retval[0]; 2215 2216 if (numevents >= 0) { 2217 bytes = sizeof(struct freebsd11_kevent) * numevents; 2218 if ((ke11 = malloc(bytes)) == NULL) 2219 err(1, 2220 "Cannot malloc %zu bytes for kevent array", 2221 bytes); 2222 } else 2223 ke11 = NULL; 2224 memset(&ke, 0, sizeof(ke)); 2225 if (numevents >= 0 && get_struct(pid, args[sc->offset], 2226 ke11, bytes) != -1) { 2227 fputc('{', fp); 2228 for (i = 0; i < numevents; i++) { 2229 fputc(' ', fp); 2230 ke.ident = ke11[i].ident; 2231 ke.filter = ke11[i].filter; 2232 ke.flags = ke11[i].flags; 2233 ke.fflags = ke11[i].fflags; 2234 ke.data = ke11[i].data; 2235 ke.udata = ke11[i].udata; 2236 print_kevent(fp, &ke); 2237 } 2238 fputs(" }", fp); 2239 } else { 2240 print_pointer(fp, args[sc->offset]); 2241 } 2242 free(ke11); 2243 break; 2244 } 2245 case Stat: { 2246 struct stat st; 2247 2248 if (get_struct(pid, args[sc->offset], &st, sizeof(st)) 2249 != -1) { 2250 char mode[12]; 2251 2252 strmode(st.st_mode, mode); 2253 fprintf(fp, 2254 "{ mode=%s,inode=%ju,size=%jd,blksize=%ld }", mode, 2255 (uintmax_t)st.st_ino, (intmax_t)st.st_size, 2256 (long)st.st_blksize); 2257 } else { 2258 print_pointer(fp, args[sc->offset]); 2259 } 2260 break; 2261 } 2262 case Stat11: { 2263 struct freebsd11_stat st; 2264 2265 if (get_struct(pid, args[sc->offset], &st, sizeof(st)) 2266 != -1) { 2267 char mode[12]; 2268 2269 strmode(st.st_mode, mode); 2270 fprintf(fp, 2271 "{ mode=%s,inode=%ju,size=%jd,blksize=%ld }", mode, 2272 (uintmax_t)st.st_ino, (intmax_t)st.st_size, 2273 (long)st.st_blksize); 2274 } else { 2275 print_pointer(fp, args[sc->offset]); 2276 } 2277 break; 2278 } 2279 case StatFs: { 2280 unsigned int i; 2281 struct statfs buf; 2282 2283 if (get_struct(pid, args[sc->offset], &buf, 2284 sizeof(buf)) != -1) { 2285 char fsid[17]; 2286 2287 bzero(fsid, sizeof(fsid)); 2288 if (buf.f_fsid.val[0] != 0 || buf.f_fsid.val[1] != 0) { 2289 for (i = 0; i < sizeof(buf.f_fsid); i++) 2290 snprintf(&fsid[i*2], 2291 sizeof(fsid) - (i*2), "%02x", 2292 ((u_char *)&buf.f_fsid)[i]); 2293 } 2294 fprintf(fp, 2295 "{ fstypename=%s,mntonname=%s,mntfromname=%s," 2296 "fsid=%s }", buf.f_fstypename, buf.f_mntonname, 2297 buf.f_mntfromname, fsid); 2298 } else 2299 print_pointer(fp, args[sc->offset]); 2300 break; 2301 } 2302 2303 case Rusage: { 2304 struct rusage ru; 2305 2306 if (get_struct(pid, args[sc->offset], &ru, sizeof(ru)) 2307 != -1) { 2308 fprintf(fp, 2309 "{ u=%jd.%06ld,s=%jd.%06ld,in=%ld,out=%ld }", 2310 (intmax_t)ru.ru_utime.tv_sec, ru.ru_utime.tv_usec, 2311 (intmax_t)ru.ru_stime.tv_sec, ru.ru_stime.tv_usec, 2312 ru.ru_inblock, ru.ru_oublock); 2313 } else 2314 print_pointer(fp, args[sc->offset]); 2315 break; 2316 } 2317 case Rlimit: { 2318 struct rlimit rl; 2319 2320 if (get_struct(pid, args[sc->offset], &rl, sizeof(rl)) 2321 != -1) { 2322 fprintf(fp, "{ cur=%ju,max=%ju }", 2323 rl.rlim_cur, rl.rlim_max); 2324 } else 2325 print_pointer(fp, args[sc->offset]); 2326 break; 2327 } 2328 case ExitStatus: { 2329 int status; 2330 2331 if (get_struct(pid, args[sc->offset], &status, 2332 sizeof(status)) != -1) { 2333 fputs("{ ", fp); 2334 if (WIFCONTINUED(status)) 2335 fputs("CONTINUED", fp); 2336 else if (WIFEXITED(status)) 2337 fprintf(fp, "EXITED,val=%d", 2338 WEXITSTATUS(status)); 2339 else if (WIFSIGNALED(status)) 2340 fprintf(fp, "SIGNALED,sig=%s%s", 2341 strsig2(WTERMSIG(status)), 2342 WCOREDUMP(status) ? ",cored" : ""); 2343 else 2344 fprintf(fp, "STOPPED,sig=%s", 2345 strsig2(WTERMSIG(status))); 2346 fputs(" }", fp); 2347 } else 2348 print_pointer(fp, args[sc->offset]); 2349 break; 2350 } 2351 case Waitoptions: 2352 print_mask_arg(sysdecode_wait6_options, fp, args[sc->offset]); 2353 break; 2354 case Idtype: 2355 print_integer_arg(sysdecode_idtype, fp, args[sc->offset]); 2356 break; 2357 case Procctl: 2358 print_integer_arg(sysdecode_procctl_cmd, fp, args[sc->offset]); 2359 break; 2360 case Umtxop: { 2361 int rem; 2362 2363 if (print_mask_arg_part(sysdecode_umtx_op_flags, fp, 2364 args[sc->offset], &rem)) 2365 fprintf(fp, "|"); 2366 print_integer_arg(sysdecode_umtx_op, fp, rem); 2367 break; 2368 } 2369 case Atfd: 2370 print_integer_arg(sysdecode_atfd, fp, args[sc->offset]); 2371 break; 2372 case Atflags: 2373 print_mask_arg(sysdecode_atflags, fp, args[sc->offset]); 2374 break; 2375 case Accessmode: 2376 print_mask_arg(sysdecode_access_mode, fp, args[sc->offset]); 2377 break; 2378 case Sysarch: 2379 print_integer_arg(sysdecode_sysarch_number, fp, 2380 args[sc->offset]); 2381 break; 2382 case Sysctl: { 2383 char name[BUFSIZ]; 2384 int oid[CTL_MAXNAME + 2]; 2385 size_t len; 2386 2387 memset(name, 0, sizeof(name)); 2388 len = args[sc->offset + 1]; 2389 if (get_struct(pid, args[sc->offset], oid, 2390 len * sizeof(oid[0])) != -1) { 2391 fprintf(fp, "\""); 2392 if (oid[0] == CTL_SYSCTL) { 2393 fprintf(fp, "sysctl."); 2394 switch (oid[1]) { 2395 case CTL_SYSCTL_DEBUG: 2396 fprintf(fp, "debug"); 2397 break; 2398 case CTL_SYSCTL_NAME: 2399 fprintf(fp, "name "); 2400 print_sysctl_oid(fp, oid + 2, len - 2); 2401 break; 2402 case CTL_SYSCTL_NEXT: 2403 fprintf(fp, "next"); 2404 break; 2405 case CTL_SYSCTL_NAME2OID: 2406 fprintf(fp, "name2oid %s", 2407 get_string(pid, 2408 args[sc->offset + 4], 2409 args[sc->offset + 5])); 2410 break; 2411 case CTL_SYSCTL_OIDFMT: 2412 fprintf(fp, "oidfmt "); 2413 print_sysctl(fp, oid + 2, len - 2); 2414 break; 2415 case CTL_SYSCTL_OIDDESCR: 2416 fprintf(fp, "oiddescr "); 2417 print_sysctl(fp, oid + 2, len - 2); 2418 break; 2419 case CTL_SYSCTL_OIDLABEL: 2420 fprintf(fp, "oidlabel "); 2421 print_sysctl(fp, oid + 2, len - 2); 2422 break; 2423 case CTL_SYSCTL_NEXTNOSKIP: 2424 fprintf(fp, "nextnoskip"); 2425 break; 2426 default: 2427 print_sysctl(fp, oid + 1, len - 1); 2428 } 2429 } else { 2430 print_sysctl(fp, oid, len); 2431 } 2432 fprintf(fp, "\""); 2433 } 2434 break; 2435 } 2436 case PipeFds: 2437 /* 2438 * The pipe() system call in the kernel returns its 2439 * two file descriptors via return values. However, 2440 * the interface exposed by libc is that pipe() 2441 * accepts a pointer to an array of descriptors. 2442 * Format the output to match the libc API by printing 2443 * the returned file descriptors as a fake argument. 2444 * 2445 * Overwrite the first retval to signal a successful 2446 * return as well. 2447 */ 2448 fprintf(fp, "{ %d, %d }", (int)retval[0], (int)retval[1]); 2449 retval[0] = 0; 2450 break; 2451 case Utrace: { 2452 size_t len; 2453 void *utrace_addr; 2454 2455 len = args[sc->offset + 1]; 2456 utrace_addr = calloc(1, len); 2457 if (get_struct(pid, args[sc->offset], 2458 (void *)utrace_addr, len) != -1) 2459 print_utrace(fp, utrace_addr, len); 2460 else 2461 print_pointer(fp, args[sc->offset]); 2462 free(utrace_addr); 2463 break; 2464 } 2465 case IntArray: { 2466 int descriptors[16]; 2467 unsigned long i, ndescriptors; 2468 bool truncated; 2469 2470 ndescriptors = args[sc->offset + 1]; 2471 truncated = false; 2472 if (ndescriptors > nitems(descriptors)) { 2473 ndescriptors = nitems(descriptors); 2474 truncated = true; 2475 } 2476 if (get_struct(pid, args[sc->offset], 2477 descriptors, ndescriptors * sizeof(descriptors[0])) != -1) { 2478 fprintf(fp, "{"); 2479 for (i = 0; i < ndescriptors; i++) 2480 fprintf(fp, i == 0 ? " %d" : ", %d", 2481 descriptors[i]); 2482 fprintf(fp, truncated ? ", ... }" : " }"); 2483 } else 2484 print_pointer(fp, args[sc->offset]); 2485 break; 2486 } 2487 case Pipe2: 2488 print_mask_arg(sysdecode_pipe2_flags, fp, args[sc->offset]); 2489 break; 2490 case CapFcntlRights: { 2491 uint32_t rights; 2492 2493 if (sc->type & OUT) { 2494 if (get_struct(pid, args[sc->offset], &rights, 2495 sizeof(rights)) == -1) { 2496 print_pointer(fp, args[sc->offset]); 2497 break; 2498 } 2499 } else 2500 rights = args[sc->offset]; 2501 print_mask_arg32(sysdecode_cap_fcntlrights, fp, rights); 2502 break; 2503 } 2504 case Fadvice: 2505 print_integer_arg(sysdecode_fadvice, fp, args[sc->offset]); 2506 break; 2507 case FileFlags: { 2508 fflags_t rem; 2509 2510 if (!sysdecode_fileflags(fp, args[sc->offset], &rem)) 2511 fprintf(fp, "0x%x", rem); 2512 else if (rem != 0) 2513 fprintf(fp, "|0x%x", rem); 2514 break; 2515 } 2516 case Flockop: 2517 print_mask_arg(sysdecode_flock_operation, fp, args[sc->offset]); 2518 break; 2519 case Getfsstatmode: 2520 print_integer_arg(sysdecode_getfsstat_mode, fp, 2521 args[sc->offset]); 2522 break; 2523 case Inotifyflags: 2524 print_mask_arg(sysdecode_inotifyflags, fp, args[sc->offset]); 2525 break; 2526 case Itimerwhich: 2527 print_integer_arg(sysdecode_itimer, fp, args[sc->offset]); 2528 break; 2529 case Kldsymcmd: 2530 print_integer_arg(sysdecode_kldsym_cmd, fp, args[sc->offset]); 2531 break; 2532 case Kldunloadflags: 2533 print_integer_arg(sysdecode_kldunload_flags, fp, 2534 args[sc->offset]); 2535 break; 2536 case AiofsyncOp: 2537 fputs(xlookup(aio_fsync_ops, args[sc->offset]), fp); 2538 break; 2539 case LioMode: 2540 fputs(xlookup(lio_modes, args[sc->offset]), fp); 2541 break; 2542 case Madvice: 2543 print_integer_arg(sysdecode_madvice, fp, args[sc->offset]); 2544 break; 2545 case Socklent: 2546 fprintf(fp, "%u", (socklen_t)args[sc->offset]); 2547 break; 2548 case Sockprotocol: { 2549 const char *temp; 2550 int domain, protocol; 2551 2552 domain = args[sc->offset - 2]; 2553 protocol = args[sc->offset]; 2554 if (protocol == 0) { 2555 fputs("0", fp); 2556 } else { 2557 temp = sysdecode_socket_protocol(domain, protocol); 2558 if (temp) { 2559 fputs(temp, fp); 2560 } else { 2561 fprintf(fp, "%d", protocol); 2562 } 2563 } 2564 break; 2565 } 2566 case Sockoptlevel: 2567 print_integer_arg(sysdecode_sockopt_level, fp, 2568 args[sc->offset]); 2569 break; 2570 case Sockoptname: { 2571 const char *temp; 2572 int level, name; 2573 2574 level = args[sc->offset - 1]; 2575 name = args[sc->offset]; 2576 temp = sysdecode_sockopt_name(level, name); 2577 if (temp) { 2578 fputs(temp, fp); 2579 } else { 2580 fprintf(fp, "%d", name); 2581 } 2582 break; 2583 } 2584 case Msgflags: 2585 print_mask_arg(sysdecode_msg_flags, fp, args[sc->offset]); 2586 break; 2587 case CapRights: { 2588 cap_rights_t rights; 2589 2590 if (get_struct(pid, args[sc->offset], &rights, 2591 sizeof(rights)) != -1) { 2592 fputs("{ ", fp); 2593 sysdecode_cap_rights(fp, &rights); 2594 fputs(" }", fp); 2595 } else 2596 print_pointer(fp, args[sc->offset]); 2597 break; 2598 } 2599 case Acltype: 2600 print_integer_arg(sysdecode_acltype, fp, args[sc->offset]); 2601 break; 2602 case Extattrnamespace: 2603 print_integer_arg(sysdecode_extattrnamespace, fp, 2604 args[sc->offset]); 2605 break; 2606 case Minherit: 2607 print_integer_arg(sysdecode_minherit_inherit, fp, 2608 args[sc->offset]); 2609 break; 2610 case Mlockall: 2611 print_mask_arg(sysdecode_mlockall_flags, fp, args[sc->offset]); 2612 break; 2613 case Mountflags: 2614 print_mask_arg(sysdecode_mount_flags, fp, args[sc->offset]); 2615 break; 2616 case Msync: 2617 print_mask_arg(sysdecode_msync_flags, fp, args[sc->offset]); 2618 break; 2619 case Priowhich: 2620 print_integer_arg(sysdecode_prio_which, fp, args[sc->offset]); 2621 break; 2622 case Ptraceop: 2623 print_integer_arg(sysdecode_ptrace_request, fp, 2624 args[sc->offset]); 2625 break; 2626 case Sendfileflags: 2627 print_mask_arg(sysdecode_sendfile_flags, fp, args[sc->offset]); 2628 break; 2629 case Sendfilehdtr: { 2630 struct sf_hdtr hdtr; 2631 2632 if (get_struct(pid, args[sc->offset], &hdtr, sizeof(hdtr)) != 2633 -1) { 2634 fprintf(fp, "{"); 2635 print_iovec(fp, trussinfo, (uintptr_t)hdtr.headers, 2636 hdtr.hdr_cnt); 2637 print_iovec(fp, trussinfo, (uintptr_t)hdtr.trailers, 2638 hdtr.trl_cnt); 2639 fprintf(fp, "}"); 2640 } else 2641 print_pointer(fp, args[sc->offset]); 2642 break; 2643 } 2644 case Quotactlcmd: 2645 if (!sysdecode_quotactl_cmd(fp, args[sc->offset])) 2646 fprintf(fp, "%#x", (int)args[sc->offset]); 2647 break; 2648 case Reboothowto: 2649 print_mask_arg(sysdecode_reboot_howto, fp, args[sc->offset]); 2650 break; 2651 case Rtpriofunc: 2652 print_integer_arg(sysdecode_rtprio_function, fp, 2653 args[sc->offset]); 2654 break; 2655 case Schedpolicy: 2656 print_integer_arg(sysdecode_scheduler_policy, fp, 2657 args[sc->offset]); 2658 break; 2659 case Schedparam: { 2660 struct sched_param sp; 2661 2662 if (get_struct(pid, args[sc->offset], &sp, sizeof(sp)) != -1) 2663 fprintf(fp, "{ %d }", sp.sched_priority); 2664 else 2665 print_pointer(fp, args[sc->offset]); 2666 break; 2667 } 2668 case PSig: { 2669 int sig; 2670 2671 if (get_struct(pid, args[sc->offset], &sig, sizeof(sig)) == 0) 2672 fprintf(fp, "{ %s }", strsig2(sig)); 2673 else 2674 print_pointer(fp, args[sc->offset]); 2675 break; 2676 } 2677 case Siginfo: { 2678 siginfo_t si; 2679 2680 if (get_struct(pid, args[sc->offset], &si, sizeof(si)) != -1) { 2681 fprintf(fp, "{ signo=%s", strsig2(si.si_signo)); 2682 decode_siginfo(fp, &si); 2683 fprintf(fp, " }"); 2684 } else 2685 print_pointer(fp, args[sc->offset]); 2686 break; 2687 } 2688 case Iovec: 2689 /* 2690 * Print argument as an array of struct iovec, where the next 2691 * syscall argument is the number of elements of the array. 2692 */ 2693 2694 print_iovec(fp, trussinfo, args[sc->offset], 2695 (int)args[sc->offset + 1]); 2696 break; 2697 case Aiocb: { 2698 struct aiocb cb; 2699 2700 if (get_struct(pid, args[sc->offset], &cb, sizeof(cb)) != -1) 2701 print_aiocb(fp, &cb); 2702 else 2703 print_pointer(fp, args[sc->offset]); 2704 break; 2705 } 2706 case AiocbArray: { 2707 /* 2708 * Print argment as an array of pointers to struct aiocb, where 2709 * the next syscall argument is the number of elements. 2710 */ 2711 uintptr_t cbs[16]; 2712 unsigned int nent; 2713 bool truncated; 2714 2715 nent = args[sc->offset + 1]; 2716 truncated = false; 2717 if (nent > nitems(cbs)) { 2718 nent = nitems(cbs); 2719 truncated = true; 2720 } 2721 2722 if (get_struct(pid, args[sc->offset], cbs, sizeof(uintptr_t) * nent) != -1) { 2723 unsigned int i; 2724 fputs("[", fp); 2725 for (i = 0; i < nent; ++i) { 2726 struct aiocb cb; 2727 if (i > 0) 2728 fputc(',', fp); 2729 if (get_struct(pid, cbs[i], &cb, sizeof(cb)) != -1) 2730 print_aiocb(fp, &cb); 2731 else 2732 print_pointer(fp, cbs[i]); 2733 } 2734 if (truncated) 2735 fputs(",...", fp); 2736 fputs("]", fp); 2737 } else 2738 print_pointer(fp, args[sc->offset]); 2739 break; 2740 } 2741 case AiocbPointer: { 2742 /* 2743 * aio_waitcomplete(2) assigns a pointer to a pointer to struct 2744 * aiocb, so we need to handle the extra layer of indirection. 2745 */ 2746 uintptr_t cbp; 2747 struct aiocb cb; 2748 2749 if (get_struct(pid, args[sc->offset], &cbp, sizeof(cbp)) != -1) { 2750 if (get_struct(pid, cbp, &cb, sizeof(cb)) != -1) 2751 print_aiocb(fp, &cb); 2752 else 2753 print_pointer(fp, cbp); 2754 } else 2755 print_pointer(fp, args[sc->offset]); 2756 break; 2757 } 2758 case Sctpsndrcvinfo: { 2759 struct sctp_sndrcvinfo info; 2760 2761 if (get_struct(pid, args[sc->offset], 2762 &info, sizeof(struct sctp_sndrcvinfo)) == -1) { 2763 print_pointer(fp, args[sc->offset]); 2764 break; 2765 } 2766 print_sctp_sndrcvinfo(fp, sc->type & OUT, &info); 2767 break; 2768 } 2769 case Msghdr: { 2770 struct msghdr msghdr; 2771 struct iovec iov; 2772 2773 if (get_struct(pid, args[sc->offset], 2774 &msghdr, sizeof(struct msghdr)) == -1) { 2775 print_pointer(fp, args[sc->offset]); 2776 break; 2777 } 2778 fputs("{", fp); 2779 print_sockaddr(fp, trussinfo, (uintptr_t)msghdr.msg_name, msghdr.msg_namelen); 2780 fprintf(fp, ",%d,", msghdr.msg_namelen); 2781 /* Attempt Netlink decode; fallback to standard iovec if it fails. */ 2782 int protocol = get_netlink_protocol(trussinfo, (int)args[0]); 2783 if ((protocol == -1) || 2784 (get_struct(pid, (uintptr_t)msghdr.msg_iov, 2785 &iov, sizeof(iov)) == -1) || 2786 (!print_netlink(fp, trussinfo, (void *)iov.iov_base, 2787 (size_t)iov.iov_len, protocol))) { 2788 print_iovec(fp, trussinfo, (uintptr_t)msghdr.msg_iov, 2789 msghdr.msg_iovlen); 2790 } 2791 fprintf(fp, ",%d,", msghdr.msg_iovlen); 2792 print_cmsgs(fp, pid, sc->type & OUT, &msghdr); 2793 fprintf(fp, ",%u,", msghdr.msg_controllen); 2794 print_mask_arg(sysdecode_msg_flags, fp, msghdr.msg_flags); 2795 fputs("}", fp); 2796 break; 2797 } 2798 2799 default: 2800 errx(1, "Invalid argument type %d\n", sc->type & ARG_MASK); 2801 } 2802 fclose(fp); 2803 return (tmp); 2804 } 2805 2806 /* 2807 * Print (to outfile) the system call and its arguments. 2808 */ 2809 void 2810 print_syscall(struct trussinfo *trussinfo) 2811 { 2812 struct threadinfo *t; 2813 const char *name; 2814 char **s_args; 2815 int i, len, nargs; 2816 2817 t = trussinfo->curthread; 2818 2819 name = t->cs.sc->name; 2820 nargs = t->cs.nargs; 2821 s_args = t->cs.s_args; 2822 2823 len = print_line_prefix(trussinfo); 2824 len += fprintf(trussinfo->outfile, "%s(", name); 2825 2826 for (i = 0; i < nargs; i++) { 2827 if (s_args[i] != NULL) 2828 len += fprintf(trussinfo->outfile, "%s", s_args[i]); 2829 else 2830 len += fprintf(trussinfo->outfile, 2831 "<missing argument>"); 2832 len += fprintf(trussinfo->outfile, "%s", i < (nargs - 1) ? 2833 "," : ""); 2834 } 2835 len += fprintf(trussinfo->outfile, ")"); 2836 for (i = 0; i < 6 - (len / 8); i++) 2837 fprintf(trussinfo->outfile, "\t"); 2838 } 2839 2840 void 2841 print_syscall_ret(struct trussinfo *trussinfo, int error, syscallarg_t *retval) 2842 { 2843 struct timespec timediff; 2844 struct threadinfo *t; 2845 struct syscall *sc; 2846 2847 t = trussinfo->curthread; 2848 sc = t->cs.sc; 2849 if (!sc->trace) 2850 return; 2851 if (trussinfo->flags & COUNTONLY) { 2852 timespecsub(&t->after, &t->before, &timediff); 2853 timespecadd(&sc->time, &timediff, &sc->time); 2854 sc->ncalls++; 2855 if (error != 0) 2856 sc->nerror++; 2857 return; 2858 } 2859 2860 print_syscall(trussinfo); 2861 fflush(trussinfo->outfile); 2862 2863 if (retval == NULL) { 2864 /* 2865 * This system call resulted in the current thread's exit, 2866 * so there is no return value or error to display. 2867 */ 2868 fprintf(trussinfo->outfile, "\n"); 2869 return; 2870 } 2871 2872 if (error == ERESTART) 2873 fprintf(trussinfo->outfile, " ERESTART\n"); 2874 else if (error == EJUSTRETURN) 2875 fprintf(trussinfo->outfile, " EJUSTRETURN\n"); 2876 else if (error != 0) { 2877 fprintf(trussinfo->outfile, " ERR#%d '%s'\n", 2878 sysdecode_freebsd_to_abi_errno(t->proc->abi->abi, error), 2879 strerror(error)); 2880 } else if (sc->decode.ret_type == 2 && 2881 t->proc->abi->pointer_size == 4) { 2882 off_t off; 2883 #if _BYTE_ORDER == _LITTLE_ENDIAN 2884 off = (off_t)retval[1] << 32 | retval[0]; 2885 #else 2886 off = (off_t)retval[0] << 32 | retval[1]; 2887 #endif 2888 fprintf(trussinfo->outfile, " = %jd (0x%jx)\n", (intmax_t)off, 2889 (intmax_t)off); 2890 } else { 2891 fprintf(trussinfo->outfile, " = %jd (0x%jx)\n", 2892 (intmax_t)retval[0], (intmax_t)retval[0]); 2893 } 2894 } 2895 2896 void 2897 print_summary(struct trussinfo *trussinfo) 2898 { 2899 struct timespec total = {0, 0}; 2900 struct syscall *sc; 2901 int ncall, nerror; 2902 2903 fprintf(trussinfo->outfile, "%-20s%15s%8s%8s\n", 2904 "syscall", "seconds", "calls", "errors"); 2905 ncall = nerror = 0; 2906 STAILQ_FOREACH(sc, &seen_syscalls, entries) { 2907 if (sc->ncalls) { 2908 fprintf(trussinfo->outfile, "%-20s%5jd.%09ld%8d%8d\n", 2909 sc->name, (intmax_t)sc->time.tv_sec, 2910 sc->time.tv_nsec, sc->ncalls, sc->nerror); 2911 timespecadd(&total, &sc->time, &total); 2912 ncall += sc->ncalls; 2913 nerror += sc->nerror; 2914 } 2915 } 2916 fprintf(trussinfo->outfile, "%20s%15s%8s%8s\n", 2917 "", "-------------", "-------", "-------"); 2918 fprintf(trussinfo->outfile, "%-20s%5jd.%09ld%8d%8d\n", 2919 "", (intmax_t)total.tv_sec, total.tv_nsec, ncall, nerror); 2920 } 2921