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 for (i = 0; i < nitems(decoded_syscalls); i++) { 923 if (strcmp(lookup_name, decoded_syscalls[i].name) == 0) { 924 sc->decode = decoded_syscalls[i]; 925 add_syscall(t->proc->abi, number, sc); 926 return (sc); 927 } 928 } 929 930 /* It is unknown. Add it into the list. */ 931 #if DEBUG 932 fprintf(stderr, "unknown syscall %s -- setting args to %d\n", name, 933 nargs); 934 #endif 935 sc->unknown = sysdecode_name == NULL; 936 sc->decode.ret_type = 1; /* Assume 1 return value. */ 937 sc->decode.nargs = nargs; 938 for (i = 0; i < nargs; i++) { 939 sc->decode.args[i].offset = i; 940 /* Treat all unknown arguments as LongHex. */ 941 sc->decode.args[i].type = LongHex; 942 } 943 add_syscall(t->proc->abi, number, sc); 944 return (sc); 945 } 946 947 /* 948 * Copy a fixed amount of bytes from the process. 949 */ 950 static int 951 get_struct(pid_t pid, psaddr_t offset, void *buf, size_t len) 952 { 953 struct ptrace_io_desc iorequest; 954 955 iorequest.piod_op = PIOD_READ_D; 956 iorequest.piod_offs = (void *)(uintptr_t)offset; 957 iorequest.piod_addr = buf; 958 iorequest.piod_len = len; 959 if (ptrace(PT_IO, pid, (caddr_t)&iorequest, 0) < 0) 960 return (-1); 961 return (0); 962 } 963 964 #define MAXSIZE 4096 965 966 /* 967 * Copy a string from the process. Note that it is 968 * expected to be a C string, but if max is set, it will 969 * only get that much. 970 */ 971 static char * 972 get_string(pid_t pid, psaddr_t addr, int max) 973 { 974 struct ptrace_io_desc iorequest; 975 char *buf, *nbuf; 976 size_t offset, size, totalsize; 977 978 offset = 0; 979 if (max) 980 size = max + 1; 981 else { 982 /* Read up to the end of the current page. */ 983 size = PAGE_SIZE - (addr % PAGE_SIZE); 984 if (size > MAXSIZE) 985 size = MAXSIZE; 986 } 987 totalsize = size; 988 buf = malloc(totalsize); 989 if (buf == NULL) 990 return (NULL); 991 for (;;) { 992 iorequest.piod_op = PIOD_READ_D; 993 iorequest.piod_offs = (void *)((uintptr_t)addr + offset); 994 iorequest.piod_addr = buf + offset; 995 iorequest.piod_len = size; 996 if (ptrace(PT_IO, pid, (caddr_t)&iorequest, 0) < 0) { 997 free(buf); 998 return (NULL); 999 } 1000 if (memchr(buf + offset, '\0', size) != NULL) 1001 return (buf); 1002 offset += size; 1003 if (totalsize < MAXSIZE && max == 0) { 1004 size = MAXSIZE - totalsize; 1005 if (size > PAGE_SIZE) 1006 size = PAGE_SIZE; 1007 nbuf = realloc(buf, totalsize + size); 1008 if (nbuf == NULL) { 1009 buf[totalsize - 1] = '\0'; 1010 return (buf); 1011 } 1012 buf = nbuf; 1013 totalsize += size; 1014 } else { 1015 buf[totalsize - 1] = '\0'; 1016 return (buf); 1017 } 1018 } 1019 } 1020 1021 static const char * 1022 strsig2(int sig) 1023 { 1024 static char tmp[32]; 1025 const char *signame; 1026 1027 signame = sysdecode_signal(sig); 1028 if (signame == NULL) { 1029 snprintf(tmp, sizeof(tmp), "%d", sig); 1030 signame = tmp; 1031 } 1032 return (signame); 1033 } 1034 1035 static void 1036 print_kevent(FILE *fp, struct kevent *ke) 1037 { 1038 1039 switch (ke->filter) { 1040 case EVFILT_READ: 1041 case EVFILT_WRITE: 1042 case EVFILT_VNODE: 1043 case EVFILT_PROC: 1044 case EVFILT_TIMER: 1045 case EVFILT_PROCDESC: 1046 case EVFILT_EMPTY: 1047 fprintf(fp, "%ju", (uintmax_t)ke->ident); 1048 break; 1049 case EVFILT_SIGNAL: 1050 fputs(strsig2(ke->ident), fp); 1051 break; 1052 default: 1053 fprintf(fp, "%p", (void *)ke->ident); 1054 } 1055 fprintf(fp, ","); 1056 print_integer_arg(sysdecode_kevent_filter, fp, ke->filter); 1057 fprintf(fp, ","); 1058 print_mask_arg(sysdecode_kevent_flags, fp, ke->flags); 1059 fprintf(fp, ","); 1060 sysdecode_kevent_fflags(fp, ke->filter, ke->fflags, 16); 1061 fprintf(fp, ",%#jx,%p", (uintmax_t)ke->data, ke->udata); 1062 } 1063 1064 static void 1065 print_utrace(FILE *fp, void *utrace_addr, size_t len) 1066 { 1067 unsigned char *utrace_buffer; 1068 1069 fprintf(fp, "{ "); 1070 if (sysdecode_utrace(fp, utrace_addr, len)) { 1071 fprintf(fp, " }"); 1072 return; 1073 } 1074 1075 utrace_buffer = utrace_addr; 1076 fprintf(fp, "%zu:", len); 1077 while (len--) 1078 fprintf(fp, " %02x", *utrace_buffer++); 1079 fprintf(fp, " }"); 1080 } 1081 1082 static void 1083 print_pointer(FILE *fp, uintptr_t arg) 1084 { 1085 1086 fprintf(fp, "%p", (void *)arg); 1087 } 1088 1089 static void 1090 print_sockaddr(FILE *fp, struct trussinfo *trussinfo, uintptr_t arg, 1091 socklen_t len) 1092 { 1093 char addr[64]; 1094 struct sockaddr_in *lsin; 1095 struct sockaddr_in6 *lsin6; 1096 struct sockaddr_un *sun; 1097 struct sockaddr *sa; 1098 u_char *q; 1099 pid_t pid = trussinfo->curthread->proc->pid; 1100 1101 if (arg == 0) { 1102 fputs("NULL", fp); 1103 return; 1104 } 1105 /* If the length is too small, just bail. */ 1106 if (len < sizeof(*sa)) { 1107 print_pointer(fp, arg); 1108 return; 1109 } 1110 1111 sa = calloc(1, len); 1112 if (get_struct(pid, arg, sa, len) == -1) { 1113 free(sa); 1114 print_pointer(fp, arg); 1115 return; 1116 } 1117 1118 switch (sa->sa_family) { 1119 case AF_INET: 1120 if (len < sizeof(*lsin)) 1121 goto sockaddr_short; 1122 lsin = (struct sockaddr_in *)(void *)sa; 1123 inet_ntop(AF_INET, &lsin->sin_addr, addr, sizeof(addr)); 1124 fprintf(fp, "{ AF_INET %s:%d }", addr, 1125 htons(lsin->sin_port)); 1126 break; 1127 case AF_INET6: 1128 if (len < sizeof(*lsin6)) 1129 goto sockaddr_short; 1130 lsin6 = (struct sockaddr_in6 *)(void *)sa; 1131 inet_ntop(AF_INET6, &lsin6->sin6_addr, addr, 1132 sizeof(addr)); 1133 fprintf(fp, "{ AF_INET6 [%s]:%d }", addr, 1134 htons(lsin6->sin6_port)); 1135 break; 1136 case AF_UNIX: 1137 sun = (struct sockaddr_un *)sa; 1138 fprintf(fp, "{ AF_UNIX \"%.*s\" }", 1139 (int)(len - offsetof(struct sockaddr_un, sun_path)), 1140 sun->sun_path); 1141 break; 1142 default: 1143 sockaddr_short: 1144 fprintf(fp, 1145 "{ sa_len = %d, sa_family = %d, sa_data = {", 1146 (int)sa->sa_len, (int)sa->sa_family); 1147 for (q = (u_char *)sa->sa_data; 1148 q < (u_char *)sa + len; q++) 1149 fprintf(fp, "%s 0x%02x", 1150 q == (u_char *)sa->sa_data ? "" : ",", 1151 *q); 1152 fputs(" } }", fp); 1153 } 1154 free(sa); 1155 } 1156 1157 #define IOV_LIMIT 16 1158 1159 static void 1160 print_iovec(FILE *fp, struct trussinfo *trussinfo, uintptr_t arg, int iovcnt) 1161 { 1162 struct iovec iov[IOV_LIMIT]; 1163 size_t max_string = trussinfo->strsize; 1164 char tmp2[max_string + 1], *tmp3; 1165 size_t len; 1166 pid_t pid = trussinfo->curthread->proc->pid; 1167 int i; 1168 bool buf_truncated, iov_truncated; 1169 1170 if (iovcnt <= 0) { 1171 print_pointer(fp, arg); 1172 return; 1173 } 1174 if (iovcnt > IOV_LIMIT) { 1175 iovcnt = IOV_LIMIT; 1176 iov_truncated = true; 1177 } else { 1178 iov_truncated = false; 1179 } 1180 if (get_struct(pid, arg, &iov, iovcnt * sizeof(struct iovec)) == -1) { 1181 print_pointer(fp, arg); 1182 return; 1183 } 1184 1185 fputs("[", fp); 1186 for (i = 0; i < iovcnt; i++) { 1187 len = iov[i].iov_len; 1188 if (len > max_string) { 1189 len = max_string; 1190 buf_truncated = true; 1191 } else { 1192 buf_truncated = false; 1193 } 1194 fprintf(fp, "%s{", (i > 0) ? "," : ""); 1195 if (len && get_struct(pid, (uintptr_t)iov[i].iov_base, &tmp2, len) != -1) { 1196 tmp3 = malloc(len * 4 + 1); 1197 while (len) { 1198 if (strvisx(tmp3, tmp2, len, 1199 VIS_CSTYLE|VIS_TAB|VIS_NL) <= 1200 (int)max_string) 1201 break; 1202 len--; 1203 buf_truncated = true; 1204 } 1205 fprintf(fp, "\"%s\"%s", tmp3, 1206 buf_truncated ? "..." : ""); 1207 free(tmp3); 1208 } else { 1209 print_pointer(fp, (uintptr_t)iov[i].iov_base); 1210 } 1211 fprintf(fp, ",%zu}", iov[i].iov_len); 1212 } 1213 fprintf(fp, "%s%s", iov_truncated ? ",..." : "", "]"); 1214 } 1215 1216 static void 1217 print_sigval(FILE *fp, union sigval *sv) 1218 { 1219 fprintf(fp, "{ %d, %p }", sv->sival_int, sv->sival_ptr); 1220 } 1221 1222 static void 1223 print_sigevent(FILE *fp, struct sigevent *se) 1224 { 1225 fputs("{ sigev_notify=", fp); 1226 switch (se->sigev_notify) { 1227 case SIGEV_NONE: 1228 fputs("SIGEV_NONE", fp); 1229 break; 1230 case SIGEV_SIGNAL: 1231 fprintf(fp, "SIGEV_SIGNAL, sigev_signo=%s, sigev_value=", 1232 strsig2(se->sigev_signo)); 1233 print_sigval(fp, &se->sigev_value); 1234 break; 1235 case SIGEV_THREAD: 1236 fputs("SIGEV_THREAD, sigev_value=", fp); 1237 print_sigval(fp, &se->sigev_value); 1238 break; 1239 case SIGEV_KEVENT: 1240 fprintf(fp, "SIGEV_KEVENT, sigev_notify_kqueue=%d, sigev_notify_kevent_flags=", 1241 se->sigev_notify_kqueue); 1242 print_mask_arg(sysdecode_kevent_flags, fp, se->sigev_notify_kevent_flags); 1243 break; 1244 case SIGEV_THREAD_ID: 1245 fprintf(fp, "SIGEV_THREAD_ID, sigev_notify_thread_id=%d, sigev_signo=%s, sigev_value=", 1246 se->sigev_notify_thread_id, strsig2(se->sigev_signo)); 1247 print_sigval(fp, &se->sigev_value); 1248 break; 1249 default: 1250 fprintf(fp, "%d", se->sigev_notify); 1251 break; 1252 } 1253 fputs(" }", fp); 1254 } 1255 1256 static void 1257 print_aiocb(FILE *fp, struct aiocb *cb) 1258 { 1259 fprintf(fp, "{ %d,%jd,%p,%zu,%s,", 1260 cb->aio_fildes, 1261 cb->aio_offset, 1262 cb->aio_buf, 1263 cb->aio_nbytes, 1264 xlookup(lio_opcodes, cb->aio_lio_opcode)); 1265 print_sigevent(fp, &cb->aio_sigevent); 1266 fputs(" }", fp); 1267 } 1268 1269 static void 1270 print_gen_cmsg(FILE *fp, struct cmsghdr *cmsghdr) 1271 { 1272 u_char *q; 1273 1274 fputs("{", fp); 1275 for (q = CMSG_DATA(cmsghdr); 1276 q < (u_char *)cmsghdr + cmsghdr->cmsg_len; q++) { 1277 fprintf(fp, "%s0x%02x", q == CMSG_DATA(cmsghdr) ? "" : ",", *q); 1278 } 1279 fputs("}", fp); 1280 } 1281 1282 static void 1283 print_sctp_initmsg(FILE *fp, struct sctp_initmsg *init) 1284 { 1285 fprintf(fp, "{out=%u,", init->sinit_num_ostreams); 1286 fprintf(fp, "in=%u,", init->sinit_max_instreams); 1287 fprintf(fp, "max_rtx=%u,", init->sinit_max_attempts); 1288 fprintf(fp, "max_rto=%u}", init->sinit_max_init_timeo); 1289 } 1290 1291 static void 1292 print_sctp_sndrcvinfo(FILE *fp, bool receive, struct sctp_sndrcvinfo *info) 1293 { 1294 fprintf(fp, "{sid=%u,", info->sinfo_stream); 1295 if (receive) { 1296 fprintf(fp, "ssn=%u,", info->sinfo_ssn); 1297 } 1298 fputs("flgs=", fp); 1299 sysdecode_sctp_sinfo_flags(fp, info->sinfo_flags); 1300 fprintf(fp, ",ppid=%u,", ntohl(info->sinfo_ppid)); 1301 if (!receive) { 1302 fprintf(fp, "ctx=%u,", info->sinfo_context); 1303 fprintf(fp, "ttl=%u,", info->sinfo_timetolive); 1304 } 1305 if (receive) { 1306 fprintf(fp, "tsn=%u,", info->sinfo_tsn); 1307 fprintf(fp, "cumtsn=%u,", info->sinfo_cumtsn); 1308 } 1309 fprintf(fp, "id=%u}", info->sinfo_assoc_id); 1310 } 1311 1312 static void 1313 print_sctp_sndinfo(FILE *fp, struct sctp_sndinfo *info) 1314 { 1315 fprintf(fp, "{sid=%u,", info->snd_sid); 1316 fputs("flgs=", fp); 1317 print_mask_arg(sysdecode_sctp_snd_flags, fp, info->snd_flags); 1318 fprintf(fp, ",ppid=%u,", ntohl(info->snd_ppid)); 1319 fprintf(fp, "ctx=%u,", info->snd_context); 1320 fprintf(fp, "id=%u}", info->snd_assoc_id); 1321 } 1322 1323 static void 1324 print_sctp_rcvinfo(FILE *fp, struct sctp_rcvinfo *info) 1325 { 1326 fprintf(fp, "{sid=%u,", info->rcv_sid); 1327 fprintf(fp, "ssn=%u,", info->rcv_ssn); 1328 fputs("flgs=", fp); 1329 print_mask_arg(sysdecode_sctp_rcv_flags, fp, info->rcv_flags); 1330 fprintf(fp, ",ppid=%u,", ntohl(info->rcv_ppid)); 1331 fprintf(fp, "tsn=%u,", info->rcv_tsn); 1332 fprintf(fp, "cumtsn=%u,", info->rcv_cumtsn); 1333 fprintf(fp, "ctx=%u,", info->rcv_context); 1334 fprintf(fp, "id=%u}", info->rcv_assoc_id); 1335 } 1336 1337 static void 1338 print_sctp_nxtinfo(FILE *fp, struct sctp_nxtinfo *info) 1339 { 1340 fprintf(fp, "{sid=%u,", info->nxt_sid); 1341 fputs("flgs=", fp); 1342 print_mask_arg(sysdecode_sctp_nxt_flags, fp, info->nxt_flags); 1343 fprintf(fp, ",ppid=%u,", ntohl(info->nxt_ppid)); 1344 fprintf(fp, "len=%u,", info->nxt_length); 1345 fprintf(fp, "id=%u}", info->nxt_assoc_id); 1346 } 1347 1348 static void 1349 print_sctp_prinfo(FILE *fp, struct sctp_prinfo *info) 1350 { 1351 fputs("{pol=", fp); 1352 print_integer_arg(sysdecode_sctp_pr_policy, fp, info->pr_policy); 1353 fprintf(fp, ",val=%u}", info->pr_value); 1354 } 1355 1356 static void 1357 print_sctp_authinfo(FILE *fp, struct sctp_authinfo *info) 1358 { 1359 fprintf(fp, "{num=%u}", info->auth_keynumber); 1360 } 1361 1362 static void 1363 print_sctp_ipv4_addr(FILE *fp, struct in_addr *addr) 1364 { 1365 char buf[INET_ADDRSTRLEN]; 1366 const char *s; 1367 1368 s = inet_ntop(AF_INET, addr, buf, INET_ADDRSTRLEN); 1369 if (s != NULL) 1370 fprintf(fp, "{addr=%s}", s); 1371 else 1372 fputs("{addr=???}", fp); 1373 } 1374 1375 static void 1376 print_sctp_ipv6_addr(FILE *fp, struct in6_addr *addr) 1377 { 1378 char buf[INET6_ADDRSTRLEN]; 1379 const char *s; 1380 1381 s = inet_ntop(AF_INET6, addr, buf, INET6_ADDRSTRLEN); 1382 if (s != NULL) 1383 fprintf(fp, "{addr=%s}", s); 1384 else 1385 fputs("{addr=???}", fp); 1386 } 1387 1388 static void 1389 print_sctp_cmsg(FILE *fp, bool receive, struct cmsghdr *cmsghdr) 1390 { 1391 void *data; 1392 socklen_t len; 1393 1394 len = cmsghdr->cmsg_len; 1395 data = CMSG_DATA(cmsghdr); 1396 switch (cmsghdr->cmsg_type) { 1397 case SCTP_INIT: 1398 if (len == CMSG_LEN(sizeof(struct sctp_initmsg))) 1399 print_sctp_initmsg(fp, (struct sctp_initmsg *)data); 1400 else 1401 print_gen_cmsg(fp, cmsghdr); 1402 break; 1403 case SCTP_SNDRCV: 1404 if (len == CMSG_LEN(sizeof(struct sctp_sndrcvinfo))) 1405 print_sctp_sndrcvinfo(fp, receive, 1406 (struct sctp_sndrcvinfo *)data); 1407 else 1408 print_gen_cmsg(fp, cmsghdr); 1409 break; 1410 #if 0 1411 case SCTP_EXTRCV: 1412 if (len == CMSG_LEN(sizeof(struct sctp_extrcvinfo))) 1413 print_sctp_extrcvinfo(fp, 1414 (struct sctp_extrcvinfo *)data); 1415 else 1416 print_gen_cmsg(fp, cmsghdr); 1417 break; 1418 #endif 1419 case SCTP_SNDINFO: 1420 if (len == CMSG_LEN(sizeof(struct sctp_sndinfo))) 1421 print_sctp_sndinfo(fp, (struct sctp_sndinfo *)data); 1422 else 1423 print_gen_cmsg(fp, cmsghdr); 1424 break; 1425 case SCTP_RCVINFO: 1426 if (len == CMSG_LEN(sizeof(struct sctp_rcvinfo))) 1427 print_sctp_rcvinfo(fp, (struct sctp_rcvinfo *)data); 1428 else 1429 print_gen_cmsg(fp, cmsghdr); 1430 break; 1431 case SCTP_NXTINFO: 1432 if (len == CMSG_LEN(sizeof(struct sctp_nxtinfo))) 1433 print_sctp_nxtinfo(fp, (struct sctp_nxtinfo *)data); 1434 else 1435 print_gen_cmsg(fp, cmsghdr); 1436 break; 1437 case SCTP_PRINFO: 1438 if (len == CMSG_LEN(sizeof(struct sctp_prinfo))) 1439 print_sctp_prinfo(fp, (struct sctp_prinfo *)data); 1440 else 1441 print_gen_cmsg(fp, cmsghdr); 1442 break; 1443 case SCTP_AUTHINFO: 1444 if (len == CMSG_LEN(sizeof(struct sctp_authinfo))) 1445 print_sctp_authinfo(fp, (struct sctp_authinfo *)data); 1446 else 1447 print_gen_cmsg(fp, cmsghdr); 1448 break; 1449 case SCTP_DSTADDRV4: 1450 if (len == CMSG_LEN(sizeof(struct in_addr))) 1451 print_sctp_ipv4_addr(fp, (struct in_addr *)data); 1452 else 1453 print_gen_cmsg(fp, cmsghdr); 1454 break; 1455 case SCTP_DSTADDRV6: 1456 if (len == CMSG_LEN(sizeof(struct in6_addr))) 1457 print_sctp_ipv6_addr(fp, (struct in6_addr *)data); 1458 else 1459 print_gen_cmsg(fp, cmsghdr); 1460 break; 1461 default: 1462 print_gen_cmsg(fp, cmsghdr); 1463 } 1464 } 1465 1466 static void 1467 print_cmsgs(FILE *fp, pid_t pid, bool receive, struct msghdr *msghdr) 1468 { 1469 struct cmsghdr *cmsghdr; 1470 char *cmsgbuf; 1471 const char *temp; 1472 socklen_t len; 1473 int level, type; 1474 bool first; 1475 1476 len = msghdr->msg_controllen; 1477 if (len == 0) { 1478 fputs("{}", fp); 1479 return; 1480 } 1481 cmsgbuf = calloc(1, len); 1482 if (get_struct(pid, (uintptr_t)msghdr->msg_control, cmsgbuf, len) == -1) { 1483 print_pointer(fp, (uintptr_t)msghdr->msg_control); 1484 free(cmsgbuf); 1485 return; 1486 } 1487 msghdr->msg_control = cmsgbuf; 1488 first = true; 1489 fputs("{", fp); 1490 for (cmsghdr = CMSG_FIRSTHDR(msghdr); 1491 cmsghdr != NULL; 1492 cmsghdr = CMSG_NXTHDR(msghdr, cmsghdr)) { 1493 if (cmsghdr->cmsg_len < sizeof(*cmsghdr)) { 1494 fprintf(fp, "{<invalid cmsg, len=%u>}", 1495 cmsghdr->cmsg_len); 1496 if (cmsghdr->cmsg_len == 0) { 1497 /* Avoid looping forever. */ 1498 break; 1499 } 1500 continue; 1501 } 1502 1503 level = cmsghdr->cmsg_level; 1504 type = cmsghdr->cmsg_type; 1505 len = cmsghdr->cmsg_len; 1506 fprintf(fp, "%s{level=", first ? "" : ","); 1507 print_integer_arg(sysdecode_sockopt_level, fp, level); 1508 fputs(",type=", fp); 1509 temp = sysdecode_cmsg_type(level, type); 1510 if (temp) { 1511 fputs(temp, fp); 1512 } else { 1513 fprintf(fp, "%d", type); 1514 } 1515 fputs(",data=", fp); 1516 switch (level) { 1517 case IPPROTO_SCTP: 1518 print_sctp_cmsg(fp, receive, cmsghdr); 1519 break; 1520 default: 1521 print_gen_cmsg(fp, cmsghdr); 1522 break; 1523 } 1524 fputs("}", fp); 1525 first = false; 1526 } 1527 fputs("}", fp); 1528 free(cmsgbuf); 1529 } 1530 1531 static void 1532 print_sysctl_oid(FILE *fp, int *oid, size_t len) 1533 { 1534 size_t i; 1535 bool first; 1536 1537 first = true; 1538 fprintf(fp, "{ "); 1539 for (i = 0; i < len; i++) { 1540 fprintf(fp, "%s%d", first ? "" : ".", oid[i]); 1541 first = false; 1542 } 1543 fprintf(fp, " }"); 1544 } 1545 1546 static void 1547 print_sysctl(FILE *fp, int *oid, size_t len) 1548 { 1549 char name[BUFSIZ]; 1550 int qoid[CTL_MAXNAME + 2]; 1551 size_t i; 1552 1553 qoid[0] = CTL_SYSCTL; 1554 qoid[1] = CTL_SYSCTL_NAME; 1555 memcpy(qoid + 2, oid, len * sizeof(int)); 1556 i = sizeof(name); 1557 if (sysctl(qoid, len + 2, name, &i, 0, 0) == -1) 1558 print_sysctl_oid(fp, oid, len); 1559 else 1560 fprintf(fp, "%s", name); 1561 } 1562 1563 /* 1564 * Convert a 32-bit user-space pointer to psaddr_t by zero-extending. 1565 */ 1566 static psaddr_t 1567 user_ptr32_to_psaddr(int32_t user_pointer) 1568 { 1569 return ((psaddr_t)(uintptr_t)user_pointer); 1570 } 1571 1572 /* 1573 * Check whether a file descriptor belongs to an AF_NETLINK socket 1574 * for the current traced process. 1575 */ 1576 static int 1577 get_netlink_protocol(struct trussinfo *trussinfo, int num_fd) 1578 { 1579 struct procinfo *p = trussinfo->curthread->proc; 1580 struct fd_domain *f; 1581 1582 LIST_FOREACH(f, &p->fdlist, entries) { 1583 if (f->fd == num_fd && f->domain == AF_NETLINK) 1584 return (f->protocol); 1585 } 1586 return (-1); 1587 } 1588 1589 #define NETLINK_MAX_DECODE 4096 1590 1591 /* 1592 * Copy a potential Netlink message buffer from the traced process 1593 * and attempt to decode and print it. 1594 */ 1595 static bool 1596 print_netlink(FILE *fp, struct trussinfo *trussinfo, void *msg, size_t len, 1597 int protocol) 1598 { 1599 char *buf; 1600 pid_t pid = trussinfo->curthread->proc->pid; 1601 bool success = false; 1602 1603 if (msg == NULL || len == 0) 1604 return (false); 1605 1606 size_t read_len = MIN(len, NETLINK_MAX_DECODE); 1607 if (read_len == 0) 1608 return (false); 1609 1610 buf = malloc(read_len); 1611 if (buf == NULL) 1612 return (false); 1613 1614 if (get_struct(pid, (uintptr_t)msg, buf, read_len) == -1) { 1615 free(buf); 1616 return (false); 1617 } 1618 1619 if (sysdecode_netlink(fp, buf, read_len, protocol)) { 1620 success = true; 1621 } 1622 free(buf); 1623 1624 return (success); 1625 } 1626 1627 /* 1628 * Converts a syscall argument into a string. Said string is 1629 * allocated via malloc(), so needs to be free()'d. sc is 1630 * a pointer to the syscall description (see above); args is 1631 * an array of all of the system call arguments. 1632 */ 1633 char * 1634 print_arg(struct syscall_arg *sc, syscallarg_t *args, syscallarg_t *retval, 1635 struct trussinfo *trussinfo, struct syscall_decode *decode) 1636 { 1637 FILE *fp; 1638 char *tmp; 1639 size_t tmplen; 1640 pid_t pid; 1641 1642 fp = open_memstream(&tmp, &tmplen); 1643 pid = trussinfo->curthread->proc->pid; 1644 switch (sc->type & ARG_MASK) { 1645 case Hex: 1646 fprintf(fp, "0x%x", (int)args[sc->offset]); 1647 break; 1648 case Octal: 1649 fprintf(fp, "0%o", (int)args[sc->offset]); 1650 break; 1651 case Int: 1652 fprintf(fp, "%d", (int)args[sc->offset]); 1653 break; 1654 case UInt: 1655 fprintf(fp, "%u", (unsigned int)args[sc->offset]); 1656 break; 1657 case PUInt: { 1658 unsigned int val; 1659 1660 if (get_struct(pid, args[sc->offset], &val, 1661 sizeof(val)) == 0) 1662 fprintf(fp, "{ %u }", val); 1663 else 1664 print_pointer(fp, args[sc->offset]); 1665 break; 1666 } 1667 case LongHex: 1668 fprintf(fp, "0x%lx", (long)args[sc->offset]); 1669 break; 1670 case Long: 1671 fprintf(fp, "%ld", (long)args[sc->offset]); 1672 break; 1673 case Sizet: 1674 fprintf(fp, "%zu", (size_t)args[sc->offset]); 1675 break; 1676 case ShmName: 1677 /* Handle special SHM_ANON value. */ 1678 if ((char *)(uintptr_t)args[sc->offset] == SHM_ANON) { 1679 fprintf(fp, "SHM_ANON"); 1680 break; 1681 } 1682 /* FALLTHROUGH */ 1683 case Name: { 1684 /* NULL-terminated string. */ 1685 char *tmp2; 1686 1687 tmp2 = get_string(pid, args[sc->offset], 0); 1688 fprintf(fp, "\"%s\"", tmp2); 1689 free(tmp2); 1690 break; 1691 } 1692 case BinString: { 1693 if ((strcmp(decode->name, "sendto") == 0 || 1694 strcmp(decode->name, "recvfrom") == 0)) { 1695 1696 int protocol = 1697 get_netlink_protocol(trussinfo, (int)args[0]); 1698 1699 if ((protocol != -1) && 1700 print_netlink(fp, trussinfo, 1701 (void *)args[sc->offset], 1702 (size_t)args[sc->offset + 1], 1703 protocol)) 1704 break; 1705 } 1706 /* 1707 * Binary block of data that might have printable characters. 1708 * XXX If type|OUT, assume that the length is the syscall's 1709 * return value. Otherwise, assume that the length of the block 1710 * is in the next syscall argument. 1711 */ 1712 int max_string = trussinfo->strsize; 1713 char tmp2[max_string + 1], *tmp3; 1714 int len; 1715 int truncated = 0; 1716 1717 if (sc->type & OUT) 1718 len = retval[0]; 1719 else 1720 len = args[sc->offset + 1]; 1721 1722 /* 1723 * Don't print more than max_string characters, to avoid word 1724 * wrap. If we have to truncate put some ... after the string. 1725 */ 1726 if (len > max_string) { 1727 len = max_string; 1728 truncated = 1; 1729 } 1730 if (len && get_struct(pid, args[sc->offset], &tmp2, len) 1731 != -1) { 1732 tmp3 = malloc(len * 4 + 1); 1733 while (len) { 1734 if (strvisx(tmp3, tmp2, len, 1735 VIS_CSTYLE|VIS_TAB|VIS_NL) <= max_string) 1736 break; 1737 len--; 1738 truncated = 1; 1739 } 1740 fprintf(fp, "\"%s\"%s", tmp3, truncated ? 1741 "..." : ""); 1742 free(tmp3); 1743 } else { 1744 print_pointer(fp, args[sc->offset]); 1745 } 1746 break; 1747 } 1748 case ExecArgs: 1749 case ExecEnv: 1750 case StringArray: { 1751 psaddr_t addr; 1752 union { 1753 int32_t strarray32[PAGE_SIZE / sizeof(int32_t)]; 1754 int64_t strarray64[PAGE_SIZE / sizeof(int64_t)]; 1755 char buf[PAGE_SIZE]; 1756 } u; 1757 char *string; 1758 size_t len; 1759 u_int first, i; 1760 size_t pointer_size = 1761 trussinfo->curthread->proc->abi->pointer_size; 1762 1763 /* 1764 * Only parse argv[] and environment arrays from exec calls 1765 * if requested. 1766 */ 1767 if (((sc->type & ARG_MASK) == ExecArgs && 1768 (trussinfo->flags & EXECVEARGS) == 0) || 1769 ((sc->type & ARG_MASK) == ExecEnv && 1770 (trussinfo->flags & EXECVEENVS) == 0)) { 1771 print_pointer(fp, args[sc->offset]); 1772 break; 1773 } 1774 1775 /* 1776 * Read a page of pointers at a time. Punt if the top-level 1777 * pointer is not aligned. Note that the first read is of 1778 * a partial page. 1779 */ 1780 addr = args[sc->offset]; 1781 if (!__is_aligned(addr, pointer_size)) { 1782 print_pointer(fp, args[sc->offset]); 1783 break; 1784 } 1785 1786 len = PAGE_SIZE - (addr & PAGE_MASK); 1787 if (get_struct(pid, addr, u.buf, len) == -1) { 1788 print_pointer(fp, args[sc->offset]); 1789 break; 1790 } 1791 assert(len > 0); 1792 1793 fputc('[', fp); 1794 first = 1; 1795 i = 0; 1796 for (;;) { 1797 psaddr_t straddr; 1798 if (pointer_size == 4) { 1799 straddr = user_ptr32_to_psaddr(u.strarray32[i]); 1800 } else if (pointer_size == 8) { 1801 straddr = (psaddr_t)u.strarray64[i]; 1802 } else { 1803 errx(1, "Unsupported pointer size: %zu", 1804 pointer_size); 1805 } 1806 1807 /* Stop once we read the first NULL pointer. */ 1808 if (straddr == 0) 1809 break; 1810 string = get_string(pid, straddr, 0); 1811 fprintf(fp, "%s \"%s\"", first ? "" : ",", string); 1812 free(string); 1813 first = 0; 1814 1815 i++; 1816 if (i == len / pointer_size) { 1817 addr += len; 1818 len = PAGE_SIZE; 1819 if (get_struct(pid, addr, u.buf, len) == -1) { 1820 fprintf(fp, ", <inval>"); 1821 break; 1822 } 1823 i = 0; 1824 } 1825 } 1826 fputs(" ]", fp); 1827 break; 1828 } 1829 case Quad: 1830 case QuadHex: { 1831 uint64_t value; 1832 size_t pointer_size = 1833 trussinfo->curthread->proc->abi->pointer_size; 1834 1835 if (pointer_size == 4) { 1836 #if _BYTE_ORDER == _LITTLE_ENDIAN 1837 value = (uint64_t)args[sc->offset + 1] << 32 | 1838 args[sc->offset]; 1839 #else 1840 value = (uint64_t)args[sc->offset] << 32 | 1841 args[sc->offset + 1]; 1842 #endif 1843 } else { 1844 value = (uint64_t)args[sc->offset]; 1845 } 1846 if ((sc->type & ARG_MASK) == Quad) 1847 fprintf(fp, "%jd", (intmax_t)value); 1848 else 1849 fprintf(fp, "0x%jx", (intmax_t)value); 1850 break; 1851 } 1852 case PQuadHex: { 1853 uint64_t val; 1854 1855 if (get_struct(pid, args[sc->offset], &val, 1856 sizeof(val)) == 0) 1857 fprintf(fp, "{ 0x%jx }", (uintmax_t)val); 1858 else 1859 print_pointer(fp, args[sc->offset]); 1860 break; 1861 } 1862 case Ptr: 1863 print_pointer(fp, args[sc->offset]); 1864 break; 1865 case Readlinkres: { 1866 char *tmp2; 1867 1868 if (retval[0] == -1) 1869 break; 1870 tmp2 = get_string(pid, args[sc->offset], retval[0]); 1871 fprintf(fp, "\"%s\"", tmp2); 1872 free(tmp2); 1873 break; 1874 } 1875 case Ioctl: { 1876 const char *temp; 1877 unsigned long cmd; 1878 1879 cmd = args[sc->offset]; 1880 temp = sysdecode_ioctlname(cmd); 1881 if (temp) 1882 fputs(temp, fp); 1883 else { 1884 fprintf(fp, "0x%lx { IO%s%s 0x%lx('%c'), %lu, %lu }", 1885 cmd, cmd & IOC_OUT ? "R" : "", 1886 cmd & IOC_IN ? "W" : "", IOCGROUP(cmd), 1887 isprint(IOCGROUP(cmd)) ? (char)IOCGROUP(cmd) : '?', 1888 cmd & 0xFF, IOCPARM_LEN(cmd)); 1889 } 1890 break; 1891 } 1892 case Timespec: { 1893 struct timespec ts; 1894 1895 if (get_struct(pid, args[sc->offset], &ts, sizeof(ts)) != -1) 1896 fprintf(fp, "{ %jd.%09ld }", (intmax_t)ts.tv_sec, 1897 ts.tv_nsec); 1898 else 1899 print_pointer(fp, args[sc->offset]); 1900 break; 1901 } 1902 case Timespec2: { 1903 struct timespec ts[2]; 1904 const char *sep; 1905 unsigned int i; 1906 1907 if (get_struct(pid, args[sc->offset], &ts, sizeof(ts)) != -1) { 1908 fputs("{ ", fp); 1909 sep = ""; 1910 for (i = 0; i < nitems(ts); i++) { 1911 fputs(sep, fp); 1912 sep = ", "; 1913 switch (ts[i].tv_nsec) { 1914 case UTIME_NOW: 1915 fprintf(fp, "UTIME_NOW"); 1916 break; 1917 case UTIME_OMIT: 1918 fprintf(fp, "UTIME_OMIT"); 1919 break; 1920 default: 1921 fprintf(fp, "%jd.%09ld", 1922 (intmax_t)ts[i].tv_sec, 1923 ts[i].tv_nsec); 1924 break; 1925 } 1926 } 1927 fputs(" }", fp); 1928 } else 1929 print_pointer(fp, args[sc->offset]); 1930 break; 1931 } 1932 case Timeval: { 1933 struct timeval tv; 1934 1935 if (get_struct(pid, args[sc->offset], &tv, sizeof(tv)) != -1) 1936 fprintf(fp, "{ %jd.%06ld }", (intmax_t)tv.tv_sec, 1937 tv.tv_usec); 1938 else 1939 print_pointer(fp, args[sc->offset]); 1940 break; 1941 } 1942 case Timeval2: { 1943 struct timeval tv[2]; 1944 1945 if (get_struct(pid, args[sc->offset], &tv, sizeof(tv)) != -1) 1946 fprintf(fp, "{ %jd.%06ld, %jd.%06ld }", 1947 (intmax_t)tv[0].tv_sec, tv[0].tv_usec, 1948 (intmax_t)tv[1].tv_sec, tv[1].tv_usec); 1949 else 1950 print_pointer(fp, args[sc->offset]); 1951 break; 1952 } 1953 case Itimerval: { 1954 struct itimerval itv; 1955 1956 if (get_struct(pid, args[sc->offset], &itv, sizeof(itv)) != -1) 1957 fprintf(fp, "{ %jd.%06ld, %jd.%06ld }", 1958 (intmax_t)itv.it_interval.tv_sec, 1959 itv.it_interval.tv_usec, 1960 (intmax_t)itv.it_value.tv_sec, 1961 itv.it_value.tv_usec); 1962 else 1963 print_pointer(fp, args[sc->offset]); 1964 break; 1965 } 1966 case LinuxSockArgs: 1967 { 1968 struct linux_socketcall_args largs; 1969 1970 if (get_struct(pid, args[sc->offset], (void *)&largs, 1971 sizeof(largs)) != -1) 1972 fprintf(fp, "{ %s, 0x%lx }", 1973 lookup(linux_socketcall_ops, largs.what, 10), 1974 (long unsigned int)largs.args); 1975 else 1976 print_pointer(fp, args[sc->offset]); 1977 break; 1978 } 1979 case Pollfd: { 1980 /* 1981 * XXX: A Pollfd argument expects the /next/ syscall argument 1982 * to be the number of fds in the array. This matches the poll 1983 * syscall. 1984 */ 1985 struct pollfd *pfd; 1986 int numfds = args[sc->offset + 1]; 1987 size_t bytes = sizeof(struct pollfd) * numfds; 1988 int i; 1989 1990 if ((pfd = malloc(bytes)) == NULL) 1991 err(1, "Cannot malloc %zu bytes for pollfd array", 1992 bytes); 1993 if (get_struct(pid, args[sc->offset], pfd, bytes) != -1) { 1994 fputs("{", fp); 1995 for (i = 0; i < numfds; i++) { 1996 fprintf(fp, " %d/%s", pfd[i].fd, 1997 xlookup_bits(poll_flags, pfd[i].events)); 1998 } 1999 fputs(" }", fp); 2000 } else { 2001 print_pointer(fp, args[sc->offset]); 2002 } 2003 free(pfd); 2004 break; 2005 } 2006 case Fd_set: { 2007 /* 2008 * XXX: A Fd_set argument expects the /first/ syscall argument 2009 * to be the number of fds in the array. This matches the 2010 * select syscall. 2011 */ 2012 fd_set *fds; 2013 int numfds = args[0]; 2014 size_t bytes = _howmany(numfds, _NFDBITS) * _NFDBITS; 2015 int i; 2016 2017 if ((fds = malloc(bytes)) == NULL) 2018 err(1, "Cannot malloc %zu bytes for fd_set array", 2019 bytes); 2020 if (get_struct(pid, args[sc->offset], fds, bytes) != -1) { 2021 fputs("{", fp); 2022 for (i = 0; i < numfds; i++) { 2023 if (FD_ISSET(i, fds)) 2024 fprintf(fp, " %d", i); 2025 } 2026 fputs(" }", fp); 2027 } else 2028 print_pointer(fp, args[sc->offset]); 2029 free(fds); 2030 break; 2031 } 2032 case Signal: 2033 fputs(strsig2(args[sc->offset]), fp); 2034 break; 2035 case Sigset: { 2036 sigset_t ss; 2037 int i, first; 2038 2039 if (get_struct(pid, args[sc->offset], (void *)&ss, 2040 sizeof(ss)) == -1) { 2041 print_pointer(fp, args[sc->offset]); 2042 break; 2043 } 2044 fputs("{ ", fp); 2045 first = 1; 2046 for (i = 1; i < sys_nsig; i++) { 2047 if (sigismember(&ss, i)) { 2048 fprintf(fp, "%s%s", !first ? "|" : "", 2049 strsig2(i)); 2050 first = 0; 2051 } 2052 } 2053 if (!first) 2054 fputc(' ', fp); 2055 fputc('}', fp); 2056 break; 2057 } 2058 case Sigprocmask: 2059 print_integer_arg(sysdecode_sigprocmask_how, fp, 2060 args[sc->offset]); 2061 break; 2062 case Fcntlflag: 2063 /* XXX: Output depends on the value of the previous argument. */ 2064 if (sysdecode_fcntl_arg_p(args[sc->offset - 1])) 2065 sysdecode_fcntl_arg(fp, args[sc->offset - 1], 2066 args[sc->offset], 16); 2067 break; 2068 case Open: 2069 print_mask_arg(sysdecode_open_flags, fp, args[sc->offset]); 2070 break; 2071 case Fcntl: 2072 print_integer_arg(sysdecode_fcntl_cmd, fp, args[sc->offset]); 2073 break; 2074 case Closerangeflags: 2075 print_mask_arg(sysdecode_close_range_flags, fp, args[sc->offset]); 2076 break; 2077 case Mprot: 2078 print_mask_arg(sysdecode_mmap_prot, fp, args[sc->offset]); 2079 break; 2080 case Mmapflags: 2081 print_mask_arg(sysdecode_mmap_flags, fp, args[sc->offset]); 2082 break; 2083 case Whence: 2084 print_integer_arg(sysdecode_whence, fp, args[sc->offset]); 2085 break; 2086 case ShmFlags: 2087 print_mask_arg(sysdecode_shmflags, fp, args[sc->offset]); 2088 break; 2089 case Sockdomain: 2090 print_integer_arg(sysdecode_socketdomain, fp, args[sc->offset]); 2091 break; 2092 case Socktype: 2093 print_mask_arg(sysdecode_socket_type, fp, args[sc->offset]); 2094 break; 2095 case Shutdown: 2096 print_integer_arg(sysdecode_shutdown_how, fp, args[sc->offset]); 2097 break; 2098 case Resource: 2099 print_integer_arg(sysdecode_rlimit, fp, args[sc->offset]); 2100 break; 2101 case RusageWho: 2102 print_integer_arg(sysdecode_getrusage_who, fp, args[sc->offset]); 2103 break; 2104 case Pathconf: 2105 print_integer_arg(sysdecode_pathconf_name, fp, args[sc->offset]); 2106 break; 2107 case Rforkflags: 2108 print_mask_arg(sysdecode_rfork_flags, fp, args[sc->offset]); 2109 break; 2110 case Sockaddr: { 2111 socklen_t len; 2112 2113 if (args[sc->offset] == 0) { 2114 fputs("NULL", fp); 2115 break; 2116 } 2117 2118 /* 2119 * Extract the address length from the next argument. If 2120 * this is an output sockaddr (OUT is set), then the 2121 * next argument is a pointer to a socklen_t. Otherwise 2122 * the next argument contains a socklen_t by value. 2123 */ 2124 if (sc->type & OUT) { 2125 if (get_struct(pid, args[sc->offset + 1], &len, 2126 sizeof(len)) == -1) { 2127 print_pointer(fp, args[sc->offset]); 2128 break; 2129 } 2130 } else 2131 len = args[sc->offset + 1]; 2132 2133 print_sockaddr(fp, trussinfo, args[sc->offset], len); 2134 break; 2135 } 2136 case Sigaction: { 2137 struct sigaction sa; 2138 2139 if (get_struct(pid, args[sc->offset], &sa, sizeof(sa)) != -1) { 2140 fputs("{ ", fp); 2141 if (sa.sa_handler == SIG_DFL) 2142 fputs("SIG_DFL", fp); 2143 else if (sa.sa_handler == SIG_IGN) 2144 fputs("SIG_IGN", fp); 2145 else 2146 fprintf(fp, "%p", sa.sa_handler); 2147 fprintf(fp, " %s ss_t }", 2148 xlookup_bits(sigaction_flags, sa.sa_flags)); 2149 } else 2150 print_pointer(fp, args[sc->offset]); 2151 break; 2152 } 2153 case Sigevent: { 2154 struct sigevent se; 2155 2156 if (get_struct(pid, args[sc->offset], &se, sizeof(se)) != -1) 2157 print_sigevent(fp, &se); 2158 else 2159 print_pointer(fp, args[sc->offset]); 2160 break; 2161 } 2162 case Kevent: { 2163 /* 2164 * XXX XXX: The size of the array is determined by either the 2165 * next syscall argument, or by the syscall return value, 2166 * depending on which argument number we are. This matches the 2167 * kevent syscall, but luckily that's the only syscall that uses 2168 * them. 2169 */ 2170 struct kevent *ke; 2171 int numevents = -1; 2172 size_t bytes; 2173 int i; 2174 2175 if (sc->offset == 1) 2176 numevents = args[sc->offset+1]; 2177 else if (sc->offset == 3 && retval[0] != -1) 2178 numevents = retval[0]; 2179 2180 if (numevents >= 0) { 2181 bytes = sizeof(struct kevent) * numevents; 2182 if ((ke = malloc(bytes)) == NULL) 2183 err(1, 2184 "Cannot malloc %zu bytes for kevent array", 2185 bytes); 2186 } else 2187 ke = NULL; 2188 if (numevents >= 0 && get_struct(pid, args[sc->offset], 2189 ke, bytes) != -1) { 2190 fputc('{', fp); 2191 for (i = 0; i < numevents; i++) { 2192 fputc(' ', fp); 2193 print_kevent(fp, &ke[i]); 2194 } 2195 fputs(" }", fp); 2196 } else { 2197 print_pointer(fp, args[sc->offset]); 2198 } 2199 free(ke); 2200 break; 2201 } 2202 case Kevent11: { 2203 struct freebsd11_kevent *ke11; 2204 struct kevent ke; 2205 int numevents = -1; 2206 size_t bytes; 2207 int i; 2208 2209 if (sc->offset == 1) 2210 numevents = args[sc->offset+1]; 2211 else if (sc->offset == 3 && retval[0] != -1) 2212 numevents = retval[0]; 2213 2214 if (numevents >= 0) { 2215 bytes = sizeof(struct freebsd11_kevent) * numevents; 2216 if ((ke11 = malloc(bytes)) == NULL) 2217 err(1, 2218 "Cannot malloc %zu bytes for kevent array", 2219 bytes); 2220 } else 2221 ke11 = NULL; 2222 memset(&ke, 0, sizeof(ke)); 2223 if (numevents >= 0 && get_struct(pid, args[sc->offset], 2224 ke11, bytes) != -1) { 2225 fputc('{', fp); 2226 for (i = 0; i < numevents; i++) { 2227 fputc(' ', fp); 2228 ke.ident = ke11[i].ident; 2229 ke.filter = ke11[i].filter; 2230 ke.flags = ke11[i].flags; 2231 ke.fflags = ke11[i].fflags; 2232 ke.data = ke11[i].data; 2233 ke.udata = ke11[i].udata; 2234 print_kevent(fp, &ke); 2235 } 2236 fputs(" }", fp); 2237 } else { 2238 print_pointer(fp, args[sc->offset]); 2239 } 2240 free(ke11); 2241 break; 2242 } 2243 case Stat: { 2244 struct stat st; 2245 2246 if (get_struct(pid, args[sc->offset], &st, sizeof(st)) 2247 != -1) { 2248 char mode[12]; 2249 2250 strmode(st.st_mode, mode); 2251 fprintf(fp, 2252 "{ mode=%s,inode=%ju,size=%jd,blksize=%ld }", mode, 2253 (uintmax_t)st.st_ino, (intmax_t)st.st_size, 2254 (long)st.st_blksize); 2255 } else { 2256 print_pointer(fp, args[sc->offset]); 2257 } 2258 break; 2259 } 2260 case Stat11: { 2261 struct freebsd11_stat st; 2262 2263 if (get_struct(pid, args[sc->offset], &st, sizeof(st)) 2264 != -1) { 2265 char mode[12]; 2266 2267 strmode(st.st_mode, mode); 2268 fprintf(fp, 2269 "{ mode=%s,inode=%ju,size=%jd,blksize=%ld }", mode, 2270 (uintmax_t)st.st_ino, (intmax_t)st.st_size, 2271 (long)st.st_blksize); 2272 } else { 2273 print_pointer(fp, args[sc->offset]); 2274 } 2275 break; 2276 } 2277 case StatFs: { 2278 unsigned int i; 2279 struct statfs buf; 2280 2281 if (get_struct(pid, args[sc->offset], &buf, 2282 sizeof(buf)) != -1) { 2283 char fsid[17]; 2284 2285 bzero(fsid, sizeof(fsid)); 2286 if (buf.f_fsid.val[0] != 0 || buf.f_fsid.val[1] != 0) { 2287 for (i = 0; i < sizeof(buf.f_fsid); i++) 2288 snprintf(&fsid[i*2], 2289 sizeof(fsid) - (i*2), "%02x", 2290 ((u_char *)&buf.f_fsid)[i]); 2291 } 2292 fprintf(fp, 2293 "{ fstypename=%s,mntonname=%s,mntfromname=%s," 2294 "fsid=%s }", buf.f_fstypename, buf.f_mntonname, 2295 buf.f_mntfromname, fsid); 2296 } else 2297 print_pointer(fp, args[sc->offset]); 2298 break; 2299 } 2300 2301 case Rusage: { 2302 struct rusage ru; 2303 2304 if (get_struct(pid, args[sc->offset], &ru, sizeof(ru)) 2305 != -1) { 2306 fprintf(fp, 2307 "{ u=%jd.%06ld,s=%jd.%06ld,in=%ld,out=%ld }", 2308 (intmax_t)ru.ru_utime.tv_sec, ru.ru_utime.tv_usec, 2309 (intmax_t)ru.ru_stime.tv_sec, ru.ru_stime.tv_usec, 2310 ru.ru_inblock, ru.ru_oublock); 2311 } else 2312 print_pointer(fp, args[sc->offset]); 2313 break; 2314 } 2315 case Rlimit: { 2316 struct rlimit rl; 2317 2318 if (get_struct(pid, args[sc->offset], &rl, sizeof(rl)) 2319 != -1) { 2320 fprintf(fp, "{ cur=%ju,max=%ju }", 2321 rl.rlim_cur, rl.rlim_max); 2322 } else 2323 print_pointer(fp, args[sc->offset]); 2324 break; 2325 } 2326 case ExitStatus: { 2327 int status; 2328 2329 if (get_struct(pid, args[sc->offset], &status, 2330 sizeof(status)) != -1) { 2331 fputs("{ ", fp); 2332 if (WIFCONTINUED(status)) 2333 fputs("CONTINUED", fp); 2334 else if (WIFEXITED(status)) 2335 fprintf(fp, "EXITED,val=%d", 2336 WEXITSTATUS(status)); 2337 else if (WIFSIGNALED(status)) 2338 fprintf(fp, "SIGNALED,sig=%s%s", 2339 strsig2(WTERMSIG(status)), 2340 WCOREDUMP(status) ? ",cored" : ""); 2341 else 2342 fprintf(fp, "STOPPED,sig=%s", 2343 strsig2(WTERMSIG(status))); 2344 fputs(" }", fp); 2345 } else 2346 print_pointer(fp, args[sc->offset]); 2347 break; 2348 } 2349 case Waitoptions: 2350 print_mask_arg(sysdecode_wait6_options, fp, args[sc->offset]); 2351 break; 2352 case Idtype: 2353 print_integer_arg(sysdecode_idtype, fp, args[sc->offset]); 2354 break; 2355 case Procctl: 2356 print_integer_arg(sysdecode_procctl_cmd, fp, args[sc->offset]); 2357 break; 2358 case Umtxop: { 2359 int rem; 2360 2361 if (print_mask_arg_part(sysdecode_umtx_op_flags, fp, 2362 args[sc->offset], &rem)) 2363 fprintf(fp, "|"); 2364 print_integer_arg(sysdecode_umtx_op, fp, rem); 2365 break; 2366 } 2367 case Atfd: 2368 print_integer_arg(sysdecode_atfd, fp, args[sc->offset]); 2369 break; 2370 case Atflags: 2371 print_mask_arg(sysdecode_atflags, fp, args[sc->offset]); 2372 break; 2373 case Accessmode: 2374 print_mask_arg(sysdecode_access_mode, fp, args[sc->offset]); 2375 break; 2376 case Sysarch: 2377 print_integer_arg(sysdecode_sysarch_number, fp, 2378 args[sc->offset]); 2379 break; 2380 case Sysctl: { 2381 char name[BUFSIZ]; 2382 int oid[CTL_MAXNAME + 2]; 2383 size_t len; 2384 2385 memset(name, 0, sizeof(name)); 2386 len = args[sc->offset + 1]; 2387 if (get_struct(pid, args[sc->offset], oid, 2388 len * sizeof(oid[0])) != -1) { 2389 fprintf(fp, "\""); 2390 if (oid[0] == CTL_SYSCTL) { 2391 fprintf(fp, "sysctl."); 2392 switch (oid[1]) { 2393 case CTL_SYSCTL_DEBUG: 2394 fprintf(fp, "debug"); 2395 break; 2396 case CTL_SYSCTL_NAME: 2397 fprintf(fp, "name "); 2398 print_sysctl_oid(fp, oid + 2, len - 2); 2399 break; 2400 case CTL_SYSCTL_NEXT: 2401 fprintf(fp, "next"); 2402 break; 2403 case CTL_SYSCTL_NAME2OID: 2404 fprintf(fp, "name2oid %s", 2405 get_string(pid, 2406 args[sc->offset + 4], 2407 args[sc->offset + 5])); 2408 break; 2409 case CTL_SYSCTL_OIDFMT: 2410 fprintf(fp, "oidfmt "); 2411 print_sysctl(fp, oid + 2, len - 2); 2412 break; 2413 case CTL_SYSCTL_OIDDESCR: 2414 fprintf(fp, "oiddescr "); 2415 print_sysctl(fp, oid + 2, len - 2); 2416 break; 2417 case CTL_SYSCTL_OIDLABEL: 2418 fprintf(fp, "oidlabel "); 2419 print_sysctl(fp, oid + 2, len - 2); 2420 break; 2421 case CTL_SYSCTL_NEXTNOSKIP: 2422 fprintf(fp, "nextnoskip"); 2423 break; 2424 default: 2425 print_sysctl(fp, oid + 1, len - 1); 2426 } 2427 } else { 2428 print_sysctl(fp, oid, len); 2429 } 2430 fprintf(fp, "\""); 2431 } 2432 break; 2433 } 2434 case PipeFds: 2435 /* 2436 * The pipe() system call in the kernel returns its 2437 * two file descriptors via return values. However, 2438 * the interface exposed by libc is that pipe() 2439 * accepts a pointer to an array of descriptors. 2440 * Format the output to match the libc API by printing 2441 * the returned file descriptors as a fake argument. 2442 * 2443 * Overwrite the first retval to signal a successful 2444 * return as well. 2445 */ 2446 fprintf(fp, "{ %d, %d }", (int)retval[0], (int)retval[1]); 2447 retval[0] = 0; 2448 break; 2449 case Utrace: { 2450 size_t len; 2451 void *utrace_addr; 2452 2453 len = args[sc->offset + 1]; 2454 utrace_addr = calloc(1, len); 2455 if (get_struct(pid, args[sc->offset], 2456 (void *)utrace_addr, len) != -1) 2457 print_utrace(fp, utrace_addr, len); 2458 else 2459 print_pointer(fp, args[sc->offset]); 2460 free(utrace_addr); 2461 break; 2462 } 2463 case IntArray: { 2464 int descriptors[16]; 2465 unsigned long i, ndescriptors; 2466 bool truncated; 2467 2468 ndescriptors = args[sc->offset + 1]; 2469 truncated = false; 2470 if (ndescriptors > nitems(descriptors)) { 2471 ndescriptors = nitems(descriptors); 2472 truncated = true; 2473 } 2474 if (get_struct(pid, args[sc->offset], 2475 descriptors, ndescriptors * sizeof(descriptors[0])) != -1) { 2476 fprintf(fp, "{"); 2477 for (i = 0; i < ndescriptors; i++) 2478 fprintf(fp, i == 0 ? " %d" : ", %d", 2479 descriptors[i]); 2480 fprintf(fp, truncated ? ", ... }" : " }"); 2481 } else 2482 print_pointer(fp, args[sc->offset]); 2483 break; 2484 } 2485 case Pipe2: 2486 print_mask_arg(sysdecode_pipe2_flags, fp, args[sc->offset]); 2487 break; 2488 case CapFcntlRights: { 2489 uint32_t rights; 2490 2491 if (sc->type & OUT) { 2492 if (get_struct(pid, args[sc->offset], &rights, 2493 sizeof(rights)) == -1) { 2494 print_pointer(fp, args[sc->offset]); 2495 break; 2496 } 2497 } else 2498 rights = args[sc->offset]; 2499 print_mask_arg32(sysdecode_cap_fcntlrights, fp, rights); 2500 break; 2501 } 2502 case Fadvice: 2503 print_integer_arg(sysdecode_fadvice, fp, args[sc->offset]); 2504 break; 2505 case FileFlags: { 2506 fflags_t rem; 2507 2508 if (!sysdecode_fileflags(fp, args[sc->offset], &rem)) 2509 fprintf(fp, "0x%x", rem); 2510 else if (rem != 0) 2511 fprintf(fp, "|0x%x", rem); 2512 break; 2513 } 2514 case Flockop: 2515 print_mask_arg(sysdecode_flock_operation, fp, args[sc->offset]); 2516 break; 2517 case Getfsstatmode: 2518 print_integer_arg(sysdecode_getfsstat_mode, fp, 2519 args[sc->offset]); 2520 break; 2521 case Inotifyflags: 2522 print_mask_arg(sysdecode_inotifyflags, fp, args[sc->offset]); 2523 break; 2524 case Itimerwhich: 2525 print_integer_arg(sysdecode_itimer, fp, args[sc->offset]); 2526 break; 2527 case Kldsymcmd: 2528 print_integer_arg(sysdecode_kldsym_cmd, fp, args[sc->offset]); 2529 break; 2530 case Kldunloadflags: 2531 print_integer_arg(sysdecode_kldunload_flags, fp, 2532 args[sc->offset]); 2533 break; 2534 case AiofsyncOp: 2535 fputs(xlookup(aio_fsync_ops, args[sc->offset]), fp); 2536 break; 2537 case LioMode: 2538 fputs(xlookup(lio_modes, args[sc->offset]), fp); 2539 break; 2540 case Madvice: 2541 print_integer_arg(sysdecode_madvice, fp, args[sc->offset]); 2542 break; 2543 case Socklent: 2544 fprintf(fp, "%u", (socklen_t)args[sc->offset]); 2545 break; 2546 case Sockprotocol: { 2547 const char *temp; 2548 int domain, protocol; 2549 2550 domain = args[sc->offset - 2]; 2551 protocol = args[sc->offset]; 2552 if (protocol == 0) { 2553 fputs("0", fp); 2554 } else { 2555 temp = sysdecode_socket_protocol(domain, protocol); 2556 if (temp) { 2557 fputs(temp, fp); 2558 } else { 2559 fprintf(fp, "%d", protocol); 2560 } 2561 } 2562 break; 2563 } 2564 case Sockoptlevel: 2565 print_integer_arg(sysdecode_sockopt_level, fp, 2566 args[sc->offset]); 2567 break; 2568 case Sockoptname: { 2569 const char *temp; 2570 int level, name; 2571 2572 level = args[sc->offset - 1]; 2573 name = args[sc->offset]; 2574 temp = sysdecode_sockopt_name(level, name); 2575 if (temp) { 2576 fputs(temp, fp); 2577 } else { 2578 fprintf(fp, "%d", name); 2579 } 2580 break; 2581 } 2582 case Msgflags: 2583 print_mask_arg(sysdecode_msg_flags, fp, args[sc->offset]); 2584 break; 2585 case CapRights: { 2586 cap_rights_t rights; 2587 2588 if (get_struct(pid, args[sc->offset], &rights, 2589 sizeof(rights)) != -1) { 2590 fputs("{ ", fp); 2591 sysdecode_cap_rights(fp, &rights); 2592 fputs(" }", fp); 2593 } else 2594 print_pointer(fp, args[sc->offset]); 2595 break; 2596 } 2597 case Acltype: 2598 print_integer_arg(sysdecode_acltype, fp, args[sc->offset]); 2599 break; 2600 case Extattrnamespace: 2601 print_integer_arg(sysdecode_extattrnamespace, fp, 2602 args[sc->offset]); 2603 break; 2604 case Minherit: 2605 print_integer_arg(sysdecode_minherit_inherit, fp, 2606 args[sc->offset]); 2607 break; 2608 case Mlockall: 2609 print_mask_arg(sysdecode_mlockall_flags, fp, args[sc->offset]); 2610 break; 2611 case Mountflags: 2612 print_mask_arg(sysdecode_mount_flags, fp, args[sc->offset]); 2613 break; 2614 case Msync: 2615 print_mask_arg(sysdecode_msync_flags, fp, args[sc->offset]); 2616 break; 2617 case Priowhich: 2618 print_integer_arg(sysdecode_prio_which, fp, args[sc->offset]); 2619 break; 2620 case Ptraceop: 2621 print_integer_arg(sysdecode_ptrace_request, fp, 2622 args[sc->offset]); 2623 break; 2624 case Sendfileflags: 2625 print_mask_arg(sysdecode_sendfile_flags, fp, args[sc->offset]); 2626 break; 2627 case Sendfilehdtr: { 2628 struct sf_hdtr hdtr; 2629 2630 if (get_struct(pid, args[sc->offset], &hdtr, sizeof(hdtr)) != 2631 -1) { 2632 fprintf(fp, "{"); 2633 print_iovec(fp, trussinfo, (uintptr_t)hdtr.headers, 2634 hdtr.hdr_cnt); 2635 print_iovec(fp, trussinfo, (uintptr_t)hdtr.trailers, 2636 hdtr.trl_cnt); 2637 fprintf(fp, "}"); 2638 } else 2639 print_pointer(fp, args[sc->offset]); 2640 break; 2641 } 2642 case Quotactlcmd: 2643 if (!sysdecode_quotactl_cmd(fp, args[sc->offset])) 2644 fprintf(fp, "%#x", (int)args[sc->offset]); 2645 break; 2646 case Reboothowto: 2647 print_mask_arg(sysdecode_reboot_howto, fp, args[sc->offset]); 2648 break; 2649 case Rtpriofunc: 2650 print_integer_arg(sysdecode_rtprio_function, fp, 2651 args[sc->offset]); 2652 break; 2653 case Schedpolicy: 2654 print_integer_arg(sysdecode_scheduler_policy, fp, 2655 args[sc->offset]); 2656 break; 2657 case Schedparam: { 2658 struct sched_param sp; 2659 2660 if (get_struct(pid, args[sc->offset], &sp, sizeof(sp)) != -1) 2661 fprintf(fp, "{ %d }", sp.sched_priority); 2662 else 2663 print_pointer(fp, args[sc->offset]); 2664 break; 2665 } 2666 case PSig: { 2667 int sig; 2668 2669 if (get_struct(pid, args[sc->offset], &sig, sizeof(sig)) == 0) 2670 fprintf(fp, "{ %s }", strsig2(sig)); 2671 else 2672 print_pointer(fp, args[sc->offset]); 2673 break; 2674 } 2675 case Siginfo: { 2676 siginfo_t si; 2677 2678 if (get_struct(pid, args[sc->offset], &si, sizeof(si)) != -1) { 2679 fprintf(fp, "{ signo=%s", strsig2(si.si_signo)); 2680 decode_siginfo(fp, &si); 2681 fprintf(fp, " }"); 2682 } else 2683 print_pointer(fp, args[sc->offset]); 2684 break; 2685 } 2686 case Iovec: 2687 /* 2688 * Print argument as an array of struct iovec, where the next 2689 * syscall argument is the number of elements of the array. 2690 */ 2691 2692 print_iovec(fp, trussinfo, args[sc->offset], 2693 (int)args[sc->offset + 1]); 2694 break; 2695 case Aiocb: { 2696 struct aiocb cb; 2697 2698 if (get_struct(pid, args[sc->offset], &cb, sizeof(cb)) != -1) 2699 print_aiocb(fp, &cb); 2700 else 2701 print_pointer(fp, args[sc->offset]); 2702 break; 2703 } 2704 case AiocbArray: { 2705 /* 2706 * Print argment as an array of pointers to struct aiocb, where 2707 * the next syscall argument is the number of elements. 2708 */ 2709 uintptr_t cbs[16]; 2710 unsigned int nent; 2711 bool truncated; 2712 2713 nent = args[sc->offset + 1]; 2714 truncated = false; 2715 if (nent > nitems(cbs)) { 2716 nent = nitems(cbs); 2717 truncated = true; 2718 } 2719 2720 if (get_struct(pid, args[sc->offset], cbs, sizeof(uintptr_t) * nent) != -1) { 2721 unsigned int i; 2722 fputs("[", fp); 2723 for (i = 0; i < nent; ++i) { 2724 struct aiocb cb; 2725 if (i > 0) 2726 fputc(',', fp); 2727 if (get_struct(pid, cbs[i], &cb, sizeof(cb)) != -1) 2728 print_aiocb(fp, &cb); 2729 else 2730 print_pointer(fp, cbs[i]); 2731 } 2732 if (truncated) 2733 fputs(",...", fp); 2734 fputs("]", fp); 2735 } else 2736 print_pointer(fp, args[sc->offset]); 2737 break; 2738 } 2739 case AiocbPointer: { 2740 /* 2741 * aio_waitcomplete(2) assigns a pointer to a pointer to struct 2742 * aiocb, so we need to handle the extra layer of indirection. 2743 */ 2744 uintptr_t cbp; 2745 struct aiocb cb; 2746 2747 if (get_struct(pid, args[sc->offset], &cbp, sizeof(cbp)) != -1) { 2748 if (get_struct(pid, cbp, &cb, sizeof(cb)) != -1) 2749 print_aiocb(fp, &cb); 2750 else 2751 print_pointer(fp, cbp); 2752 } else 2753 print_pointer(fp, args[sc->offset]); 2754 break; 2755 } 2756 case Sctpsndrcvinfo: { 2757 struct sctp_sndrcvinfo info; 2758 2759 if (get_struct(pid, args[sc->offset], 2760 &info, sizeof(struct sctp_sndrcvinfo)) == -1) { 2761 print_pointer(fp, args[sc->offset]); 2762 break; 2763 } 2764 print_sctp_sndrcvinfo(fp, sc->type & OUT, &info); 2765 break; 2766 } 2767 case Msghdr: { 2768 struct msghdr msghdr; 2769 struct iovec iov; 2770 2771 if (get_struct(pid, args[sc->offset], 2772 &msghdr, sizeof(struct msghdr)) == -1) { 2773 print_pointer(fp, args[sc->offset]); 2774 break; 2775 } 2776 fputs("{", fp); 2777 print_sockaddr(fp, trussinfo, (uintptr_t)msghdr.msg_name, msghdr.msg_namelen); 2778 fprintf(fp, ",%d,", msghdr.msg_namelen); 2779 /* Attempt Netlink decode; fallback to standard iovec if it fails. */ 2780 int protocol = get_netlink_protocol(trussinfo, (int)args[0]); 2781 if ((protocol == -1) || 2782 (get_struct(pid, (uintptr_t)msghdr.msg_iov, 2783 &iov, sizeof(iov)) == -1) || 2784 (!print_netlink(fp, trussinfo, (void *)iov.iov_base, 2785 (size_t)iov.iov_len, protocol))) { 2786 print_iovec(fp, trussinfo, (uintptr_t)msghdr.msg_iov, 2787 msghdr.msg_iovlen); 2788 } 2789 fprintf(fp, ",%d,", msghdr.msg_iovlen); 2790 print_cmsgs(fp, pid, sc->type & OUT, &msghdr); 2791 fprintf(fp, ",%u,", msghdr.msg_controllen); 2792 print_mask_arg(sysdecode_msg_flags, fp, msghdr.msg_flags); 2793 fputs("}", fp); 2794 break; 2795 } 2796 2797 default: 2798 errx(1, "Invalid argument type %d\n", sc->type & ARG_MASK); 2799 } 2800 fclose(fp); 2801 return (tmp); 2802 } 2803 2804 /* 2805 * Print (to outfile) the system call and its arguments. 2806 */ 2807 void 2808 print_syscall(struct trussinfo *trussinfo) 2809 { 2810 struct threadinfo *t; 2811 const char *name; 2812 char **s_args; 2813 int i, len, nargs; 2814 2815 t = trussinfo->curthread; 2816 2817 name = t->cs.sc->name; 2818 nargs = t->cs.nargs; 2819 s_args = t->cs.s_args; 2820 2821 len = print_line_prefix(trussinfo); 2822 len += fprintf(trussinfo->outfile, "%s(", name); 2823 2824 for (i = 0; i < nargs; i++) { 2825 if (s_args[i] != NULL) 2826 len += fprintf(trussinfo->outfile, "%s", s_args[i]); 2827 else 2828 len += fprintf(trussinfo->outfile, 2829 "<missing argument>"); 2830 len += fprintf(trussinfo->outfile, "%s", i < (nargs - 1) ? 2831 "," : ""); 2832 } 2833 len += fprintf(trussinfo->outfile, ")"); 2834 for (i = 0; i < 6 - (len / 8); i++) 2835 fprintf(trussinfo->outfile, "\t"); 2836 } 2837 2838 void 2839 print_syscall_ret(struct trussinfo *trussinfo, int error, syscallarg_t *retval) 2840 { 2841 struct timespec timediff; 2842 struct threadinfo *t; 2843 struct syscall *sc; 2844 2845 t = trussinfo->curthread; 2846 sc = t->cs.sc; 2847 if (trussinfo->flags & COUNTONLY) { 2848 timespecsub(&t->after, &t->before, &timediff); 2849 timespecadd(&sc->time, &timediff, &sc->time); 2850 sc->ncalls++; 2851 if (error != 0) 2852 sc->nerror++; 2853 return; 2854 } 2855 2856 print_syscall(trussinfo); 2857 fflush(trussinfo->outfile); 2858 2859 if (retval == NULL) { 2860 /* 2861 * This system call resulted in the current thread's exit, 2862 * so there is no return value or error to display. 2863 */ 2864 fprintf(trussinfo->outfile, "\n"); 2865 return; 2866 } 2867 2868 if (error == ERESTART) 2869 fprintf(trussinfo->outfile, " ERESTART\n"); 2870 else if (error == EJUSTRETURN) 2871 fprintf(trussinfo->outfile, " EJUSTRETURN\n"); 2872 else if (error != 0) { 2873 fprintf(trussinfo->outfile, " ERR#%d '%s'\n", 2874 sysdecode_freebsd_to_abi_errno(t->proc->abi->abi, error), 2875 strerror(error)); 2876 } else if (sc->decode.ret_type == 2 && 2877 t->proc->abi->pointer_size == 4) { 2878 off_t off; 2879 #if _BYTE_ORDER == _LITTLE_ENDIAN 2880 off = (off_t)retval[1] << 32 | retval[0]; 2881 #else 2882 off = (off_t)retval[0] << 32 | retval[1]; 2883 #endif 2884 fprintf(trussinfo->outfile, " = %jd (0x%jx)\n", (intmax_t)off, 2885 (intmax_t)off); 2886 } else { 2887 fprintf(trussinfo->outfile, " = %jd (0x%jx)\n", 2888 (intmax_t)retval[0], (intmax_t)retval[0]); 2889 } 2890 } 2891 2892 void 2893 print_summary(struct trussinfo *trussinfo) 2894 { 2895 struct timespec total = {0, 0}; 2896 struct syscall *sc; 2897 int ncall, nerror; 2898 2899 fprintf(trussinfo->outfile, "%-20s%15s%8s%8s\n", 2900 "syscall", "seconds", "calls", "errors"); 2901 ncall = nerror = 0; 2902 STAILQ_FOREACH(sc, &seen_syscalls, entries) { 2903 if (sc->ncalls) { 2904 fprintf(trussinfo->outfile, "%-20s%5jd.%09ld%8d%8d\n", 2905 sc->name, (intmax_t)sc->time.tv_sec, 2906 sc->time.tv_nsec, sc->ncalls, sc->nerror); 2907 timespecadd(&total, &sc->time, &total); 2908 ncall += sc->ncalls; 2909 nerror += sc->nerror; 2910 } 2911 } 2912 fprintf(trussinfo->outfile, "%20s%15s%8s%8s\n", 2913 "", "-------------", "-------", "-------"); 2914 fprintf(trussinfo->outfile, "%-20s%5jd.%09ld%8d%8d\n", 2915 "", (intmax_t)total.tv_sec, total.tv_nsec, ncall, nerror); 2916 } 2917