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 * $FreeBSD$ 34 */ 35 36 /* 37 * System call arguments come in several flavours: 38 * Hex -- values that should be printed in hex (addresses) 39 * Octal -- Same as above, but octal 40 * Int -- normal integer values (file descriptors, for example) 41 * LongHex -- long value that should be printed in hex 42 * Name -- pointer to a NULL-terminated string. 43 * BinString -- pointer to an array of chars, printed via strvisx(). 44 * Ptr -- pointer to some unspecified structure. Just print as hex for now. 45 * Stat -- a pointer to a stat buffer. Prints a couple fields. 46 * Stat11 -- a pointer to a freebsd 11 stat buffer. Prints a couple fields. 47 * StatFs -- a pointer to a statfs buffer. Prints a few fields. 48 * Ioctl -- an ioctl command. Woefully limited. 49 * Quad -- a double-word value. e.g., lseek(int, offset_t, int) 50 * Signal -- a signal number. Prints the signal name (SIGxxx) 51 * Sockaddr -- a pointer to a struct sockaddr. Prints symbolic AF, and IP:Port 52 * StringArray -- a pointer to an array of string pointers. 53 * Timespec -- a pointer to a struct timespec. Prints both elements. 54 * Timeval -- a pointer to a struct timeval. Prints both elements. 55 * Timeval2 -- a pointer to two struct timevals. Prints both elements of both. 56 * Itimerval -- a pointer to a struct itimerval. Prints all elements. 57 * Pollfd -- a pointer to an array of struct pollfd. Prints .fd and .events. 58 * Fd_set -- a pointer to an array of fd_set. Prints the fds that are set. 59 * Sigaction -- a pointer to a struct sigaction. Prints all elements. 60 * Sigset -- a pointer to a sigset_t. Prints the signals that are set. 61 * Sigprocmask -- the first argument to sigprocmask(). Prints the name. 62 * Kevent -- a pointer to an array of struct kevents. Prints all elements. 63 * Pathconf -- the 2nd argument of pathconf(). 64 * Utrace -- utrace(2) buffer. 65 * CapRights -- a pointer to a cap_rights_t. Prints all set capabilities. 66 * 67 * In addition, the pointer types (String, Ptr) may have OUT masked in -- 68 * this means that the data is set on *return* from the system call -- or 69 * IN (meaning that the data is passed *into* the system call). 70 */ 71 72 enum Argtype { 73 None = 1, 74 75 /* Scalar integers. */ 76 Socklent, 77 Octal, 78 Int, 79 UInt, 80 Hex, 81 Long, 82 LongHex, 83 Sizet, 84 Quad, 85 QuadHex, 86 87 /* Encoded scalar values. */ 88 Accessmode, 89 Acltype, 90 Atfd, 91 Atflags, 92 CapFcntlRights, 93 Extattrnamespace, 94 Fadvice, 95 Fcntl, 96 Fcntlflag, 97 FileFlags, 98 Flockop, 99 Getfsstatmode, 100 Idtype, 101 Ioctl, 102 Kldsymcmd, 103 Kldunloadflags, 104 Madvice, 105 Minherit, 106 Msgflags, 107 Mlockall, 108 Mmapflags, 109 Mountflags, 110 Mprot, 111 Msync, 112 Open, 113 Pathconf, 114 Pipe2, 115 Procctl, 116 Priowhich, 117 Ptraceop, 118 Quotactlcmd, 119 Reboothowto, 120 Resource, 121 Rforkflags, 122 Rtpriofunc, 123 RusageWho, 124 Schedpolicy, 125 Shutdown, 126 Signal, 127 Sigprocmask, 128 Sockdomain, 129 Sockoptlevel, 130 Sockoptname, 131 Sockprotocol, 132 Socktype, 133 Sysarch, 134 Sysctl, 135 Umtxop, 136 Waitoptions, 137 Whence, 138 139 /* Pointers to non-structures. */ 140 Ptr, 141 BinString, 142 CapRights, 143 ExecArgs, 144 ExecEnv, 145 ExitStatus, 146 Fd_set, 147 IntArray, 148 Iovec, 149 Name, 150 PipeFds, 151 PSig, 152 PQuadHex, 153 PUInt, 154 Readlinkres, 155 ShmName, 156 StringArray, 157 158 /* Pointers to structures. */ 159 Itimerval, 160 Kevent, 161 Kevent11, 162 LinuxSockArgs, 163 Msghdr, 164 Pollfd, 165 Rlimit, 166 Rusage, 167 Schedparam, 168 Sctpsndrcvinfo, 169 Sigaction, 170 Siginfo, 171 Sigset, 172 Sockaddr, 173 Stat, 174 Stat11, 175 StatFs, 176 Timespec, 177 Timespec2, 178 Timeval, 179 Timeval2, 180 Utrace, 181 182 CloudABIAdvice, 183 CloudABIClockID, 184 CloudABIFDSFlags, 185 CloudABIFDStat, 186 CloudABIFileStat, 187 CloudABIFileType, 188 CloudABIFSFlags, 189 CloudABILookup, 190 CloudABIMFlags, 191 CloudABIMProt, 192 CloudABIMSFlags, 193 CloudABIOFlags, 194 CloudABISDFlags, 195 CloudABISignal, 196 CloudABISockStat, 197 CloudABISSFlags, 198 CloudABITimestamp, 199 CloudABIULFlags, 200 CloudABIWhence, 201 202 MAX_ARG_TYPE, 203 }; 204 205 #define ARG_MASK 0xff 206 #define OUT 0x100 207 #define IN /*0x20*/0 208 209 _Static_assert(ARG_MASK > MAX_ARG_TYPE, 210 "ARG_MASK overlaps with Argtype values"); 211 212 struct syscall_args { 213 enum Argtype type; 214 int offset; 215 }; 216 217 struct syscall { 218 STAILQ_ENTRY(syscall) entries; 219 const char *name; 220 u_int ret_type; /* 0, 1, or 2 return values */ 221 u_int nargs; /* actual number of meaningful arguments */ 222 /* Hopefully, no syscalls with > 10 args */ 223 struct syscall_args args[10]; 224 struct timespec time; /* Time spent for this call */ 225 int ncalls; /* Number of calls */ 226 int nerror; /* Number of calls that returned with error */ 227 bool unknown; /* Unknown system call */ 228 }; 229 230 struct syscall *get_syscall(struct threadinfo *, u_int, u_int); 231 char *print_arg(struct syscall_args *, unsigned long*, register_t *, 232 struct trussinfo *); 233 234 /* 235 * Linux Socket defines 236 */ 237 #define LINUX_SOCKET 1 238 #define LINUX_BIND 2 239 #define LINUX_CONNECT 3 240 #define LINUX_LISTEN 4 241 #define LINUX_ACCEPT 5 242 #define LINUX_GETSOCKNAME 6 243 #define LINUX_GETPEERNAME 7 244 #define LINUX_SOCKETPAIR 8 245 #define LINUX_SEND 9 246 #define LINUX_RECV 10 247 #define LINUX_SENDTO 11 248 #define LINUX_RECVFROM 12 249 #define LINUX_SHUTDOWN 13 250 #define LINUX_SETSOCKOPT 14 251 #define LINUX_GETSOCKOPT 15 252 #define LINUX_SENDMSG 16 253 #define LINUX_RECVMSG 17 254 255 #define PAD_(t) (sizeof(register_t) <= sizeof(t) ? \ 256 0 : sizeof(register_t) - sizeof(t)) 257 258 #if BYTE_ORDER == LITTLE_ENDIAN 259 #define PADL_(t) 0 260 #define PADR_(t) PAD_(t) 261 #else 262 #define PADL_(t) PAD_(t) 263 #define PADR_(t) 0 264 #endif 265 266 typedef int l_int; 267 typedef uint32_t l_ulong; 268 269 struct linux_socketcall_args { 270 char what_l_[PADL_(l_int)]; l_int what; char what_r_[PADR_(l_int)]; 271 char args_l_[PADL_(l_ulong)]; l_ulong args; char args_r_[PADR_(l_ulong)]; 272 }; 273 274 void init_syscalls(void); 275 void print_syscall(struct trussinfo *); 276 void print_syscall_ret(struct trussinfo *, int, register_t *); 277 void print_summary(struct trussinfo *trussinfo); 278