sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1 | |
| 2 | /*--------------------------------------------------------------------*/ |
| 3 | /*--- Update the byte permission maps following a system call. ---*/ |
| 4 | /*--- vg_syscall_mem.c ---*/ |
| 5 | /*--------------------------------------------------------------------*/ |
| 6 | |
| 7 | /* |
| 8 | This file is part of Valgrind, an x86 protected-mode emulator |
| 9 | designed for debugging and profiling binaries on x86-Unixes. |
| 10 | |
| 11 | Copyright (C) 2000-2002 Julian Seward |
| 12 | jseward@acm.org |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 13 | |
| 14 | This program is free software; you can redistribute it and/or |
| 15 | modify it under the terms of the GNU General Public License as |
| 16 | published by the Free Software Foundation; either version 2 of the |
| 17 | License, or (at your option) any later version. |
| 18 | |
| 19 | This program is distributed in the hope that it will be useful, but |
| 20 | WITHOUT ANY WARRANTY; without even the implied warranty of |
| 21 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 22 | General Public License for more details. |
| 23 | |
| 24 | You should have received a copy of the GNU General Public License |
| 25 | along with this program; if not, write to the Free Software |
| 26 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 27 | 02111-1307, USA. |
| 28 | |
| 29 | The GNU General Public License is contained in the file LICENSE. |
| 30 | */ |
| 31 | |
| 32 | #include "vg_include.h" |
| 33 | |
| 34 | /* vg_unsafe.h should NOT be included into any file except this |
| 35 | one. */ |
| 36 | #include "vg_unsafe.h" |
| 37 | |
| 38 | |
| 39 | /* All system calls are channelled through vg_wrap_syscall. It does |
| 40 | three things: |
| 41 | |
| 42 | * optionally, checks the permissions for the args to the call |
| 43 | |
| 44 | * perform the syscall, usually by passing it along to the kernel |
| 45 | unmodified. However, because we simulate signals ourselves, |
| 46 | signal-related syscalls are routed to vg_signal.c, and are not |
| 47 | delivered to the kernel. |
| 48 | |
| 49 | * Update the permission maps following the syscall. |
| 50 | |
| 51 | A magical piece of assembly code, vg_do_syscall(), in vg_syscall.S |
| 52 | does the tricky bit of passing a syscall to the kernel, whilst |
| 53 | having the simulator retain control. |
| 54 | */ |
| 55 | |
| 56 | static void make_noaccess ( Addr a, UInt len ) |
| 57 | { |
| 58 | if (VG_(clo_instrument)) |
| 59 | VGM_(make_noaccess) ( a, len ); |
| 60 | } |
| 61 | |
| 62 | static void make_writable ( Addr a, UInt len ) |
| 63 | { |
| 64 | if (VG_(clo_instrument)) |
| 65 | VGM_(make_writable) ( a, len ); |
| 66 | } |
| 67 | |
| 68 | static void make_readable ( Addr a, UInt len ) |
| 69 | { |
| 70 | if (VG_(clo_instrument)) |
| 71 | VGM_(make_readable) ( a, len ); |
| 72 | } |
| 73 | |
| 74 | static void make_readwritable ( Addr a, UInt len ) |
| 75 | { |
| 76 | if (VG_(clo_instrument)) |
| 77 | VGM_(make_readwritable) ( a, len ); |
| 78 | } |
| 79 | |
| 80 | static |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 81 | void must_be_writable ( ThreadState* tst, |
| 82 | Char* syscall_name, UInt base, UInt size ) |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 83 | { |
| 84 | Bool ok; |
| 85 | Addr bad_addr; |
| 86 | /* VG_(message)(Vg_DebugMsg,"must be writable: %x .. %x", |
| 87 | base,base+size-1); */ |
| 88 | if (!VG_(clo_instrument)) |
| 89 | return; |
| 90 | ok = VGM_(check_writable) ( base, size, &bad_addr ); |
| 91 | if (!ok) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 92 | VG_(record_param_err) ( tst, bad_addr, True, syscall_name ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 93 | } |
| 94 | |
| 95 | static |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 96 | void must_be_readable ( ThreadState* tst, |
| 97 | Char* syscall_name, UInt base, UInt size ) |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 98 | { |
| 99 | Bool ok; |
| 100 | Addr bad_addr; |
| 101 | /* VG_(message)(Vg_DebugMsg,"must be readable: %x .. %x", |
| 102 | base,base+size-1); */ |
| 103 | if (!VG_(clo_instrument)) |
| 104 | return; |
| 105 | ok = VGM_(check_readable) ( base, size, &bad_addr ); |
| 106 | if (!ok) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 107 | VG_(record_param_err) ( tst, bad_addr, False, syscall_name ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 108 | } |
| 109 | |
| 110 | static |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 111 | void must_be_readable_asciiz ( ThreadState* tst, |
| 112 | Char* syscall_name, UInt str ) |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 113 | { |
| 114 | Bool ok = True; |
| 115 | Addr bad_addr; |
| 116 | /* VG_(message)(Vg_DebugMsg,"must be readable asciiz: 0x%x",str); */ |
| 117 | if (!VG_(clo_instrument)) |
| 118 | return; |
| 119 | ok = VGM_(check_readable_asciiz) ( (Addr)str, &bad_addr ); |
| 120 | if (!ok) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 121 | VG_(record_param_err) ( tst, bad_addr, False, syscall_name ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 122 | } |
| 123 | |
| 124 | |
| 125 | /* Set memory permissions, based on PROT_* values for mmap/mprotect, |
| 126 | into the permissions our scheme understands. Dunno if this is |
| 127 | really correct. */ |
| 128 | |
| 129 | static void approximate_mmap_permissions ( Addr a, UInt len, UInt prot ) |
| 130 | { |
| 131 | /* PROT_READ and PROT_WRITE --> readable |
| 132 | PROT_READ only --> readable |
| 133 | PROT_WRITE only --> writable |
| 134 | NEITHER --> noaccess |
| 135 | */ |
| 136 | if (prot & PROT_READ) |
| 137 | make_readable(a,len); |
| 138 | else |
| 139 | if (prot & PROT_WRITE) |
| 140 | make_writable(a,len); |
| 141 | else |
| 142 | make_noaccess(a,len); |
| 143 | } |
| 144 | |
| 145 | |
| 146 | /* Dereference a pointer, but only after checking that it's |
| 147 | safe to do so. If not, return the default. |
| 148 | */ |
| 149 | static |
| 150 | UInt safe_dereference ( Addr aa, UInt defawlt ) |
| 151 | { |
| 152 | if (!VG_(clo_instrument)) |
| 153 | return * (UInt*)aa; |
| 154 | if (VGM_(check_readable)(aa,4,NULL)) |
| 155 | return * (UInt*)aa; |
| 156 | else |
| 157 | return defawlt; |
| 158 | } |
| 159 | |
| 160 | |
| 161 | /* Is this a Linux kernel error return value? */ |
| 162 | /* From: |
| 163 | http://sources.redhat.com/cgi-bin/cvsweb.cgi/libc/sysdeps/unix/sysv/ |
| 164 | linux/i386/sysdep.h? |
| 165 | rev=1.28&content-type=text/x-cvsweb-markup&cvsroot=glibc |
| 166 | |
| 167 | QUOTE: |
| 168 | |
| 169 | Linux uses a negative return value to indicate syscall errors, |
| 170 | unlike most Unices, which use the condition codes' carry flag. |
| 171 | |
| 172 | Since version 2.1 the return value of a system call might be |
| 173 | negative even if the call succeeded. E.g., the `lseek' system call |
| 174 | might return a large offset. Therefore we must not anymore test |
| 175 | for < 0, but test for a real error by making sure the value in %eax |
| 176 | is a real error number. Linus said he will make sure the no syscall |
| 177 | returns a value in -1 .. -4095 as a valid result so we can savely |
| 178 | test with -4095. |
| 179 | |
| 180 | END QUOTE |
| 181 | */ |
| 182 | Bool VG_(is_kerror) ( Int res ) |
| 183 | { |
| 184 | if (res >= -4095 && res <= -1) |
| 185 | return True; |
| 186 | else |
| 187 | return False; |
| 188 | } |
| 189 | |
| 190 | static |
| 191 | UInt get_shm_size ( Int shmid ) |
| 192 | { |
| 193 | struct shmid_ds buf; |
| 194 | long __res; |
| 195 | __asm__ volatile ( "int $0x80" |
| 196 | : "=a" (__res) |
| 197 | : "0" (__NR_ipc), |
| 198 | "b" ((long)(24) /*IPCOP_shmctl*/), |
| 199 | "c" ((long)(shmid)), |
| 200 | "d" ((long)(IPC_STAT)), |
| 201 | "S" ((long)(0)), |
| 202 | "D" ((long)(&buf)) ); |
| 203 | if ( VG_(is_kerror) ( __res ) ) |
| 204 | return 0; |
| 205 | |
| 206 | return buf.shm_segsz; |
| 207 | } |
| 208 | |
| 209 | static |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 210 | Char *strdupcat ( const Char *s1, const Char *s2, ArenaId aid ) |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 211 | { |
| 212 | UInt len = VG_(strlen) ( s1 ) + VG_(strlen) ( s2 ) + 1; |
| 213 | Char *result = VG_(malloc) ( aid, len ); |
| 214 | VG_(strcpy) ( result, s1 ); |
| 215 | VG_(strcat) ( result, s2 ); |
| 216 | return result; |
| 217 | } |
| 218 | |
| 219 | static |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 220 | void must_be_readable_sendmsg ( ThreadState* tst, |
| 221 | Char *msg, UInt base, UInt size ) |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 222 | { |
| 223 | Char *outmsg = strdupcat ( "socketcall.sendmsg", msg, VG_AR_TRANSIENT ); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 224 | must_be_readable ( tst, outmsg, base, size ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 225 | VG_(free) ( VG_AR_TRANSIENT, outmsg ); |
| 226 | } |
| 227 | |
| 228 | static |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 229 | void must_be_writable_recvmsg ( ThreadState* tst, |
| 230 | Char *msg, UInt base, UInt size ) |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 231 | { |
| 232 | Char *outmsg = strdupcat ( "socketcall.recvmsg", msg, VG_AR_TRANSIENT ); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 233 | must_be_writable ( tst, outmsg, base, size ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 234 | VG_(free) ( VG_AR_TRANSIENT, outmsg ); |
| 235 | } |
| 236 | |
| 237 | static |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 238 | void make_readable_recvmsg ( ThreadState* tst, |
| 239 | Char *fieldName, UInt base, UInt size ) |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 240 | { |
| 241 | make_readable( base, size ); |
| 242 | } |
| 243 | |
| 244 | static |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 245 | void msghdr_foreachfield ( |
| 246 | ThreadState* tst, |
| 247 | struct msghdr *msg, |
| 248 | void (*foreach_func)( ThreadState*, Char *, UInt, UInt ) |
| 249 | ) |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 250 | { |
| 251 | if ( !msg ) |
| 252 | return; |
| 253 | |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 254 | foreach_func ( tst, "(msg)", (Addr)msg, sizeof( struct msghdr ) ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 255 | |
| 256 | if ( msg->msg_name ) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 257 | foreach_func ( tst, |
| 258 | "(msg.msg_name)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 259 | (Addr)msg->msg_name, msg->msg_namelen ); |
| 260 | |
| 261 | if ( msg->msg_iov ) { |
| 262 | struct iovec *iov = msg->msg_iov; |
| 263 | UInt i; |
| 264 | |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 265 | foreach_func ( tst, |
| 266 | "(msg.msg_iov)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 267 | (Addr)iov, msg->msg_iovlen * sizeof( struct iovec ) ); |
| 268 | |
| 269 | for ( i = 0; i < msg->msg_iovlen; ++i, ++iov ) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 270 | foreach_func ( tst, |
| 271 | "(msg.msg_iov[i]", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 272 | (Addr)iov->iov_base, iov->iov_len ); |
| 273 | } |
| 274 | |
| 275 | if ( msg->msg_control ) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 276 | foreach_func ( tst, |
| 277 | "(msg.msg_control)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 278 | (Addr)msg->msg_control, msg->msg_controllen ); |
| 279 | } |
| 280 | |
| 281 | |
| 282 | /* Records the current end of the data segment so we can make sense of |
| 283 | calls to brk(). Initial value set by hdm_init_memory_audit(). */ |
| 284 | Addr VGM_(curr_dataseg_end); |
| 285 | |
| 286 | |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 287 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 288 | /* The Main Entertainment ... */ |
| 289 | |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 290 | void VG_(perform_assumed_nonblocking_syscall) ( ThreadId tid ) |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 291 | { |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 292 | Bool sane_before_call = True; |
| 293 | Bool sane_after_call = True; |
| 294 | ThreadState* tst = VG_(get_thread_state)( tid ); |
| 295 | UInt syscallno = tst->m_eax; |
| 296 | UInt arg1 = tst->m_ebx; |
| 297 | UInt arg2 = tst->m_ecx; |
| 298 | UInt arg3 = tst->m_edx; |
| 299 | UInt arg4 = tst->m_esi; |
| 300 | UInt arg5 = tst->m_edi; |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 301 | |
| 302 | /* Do not make this unsigned! */ |
| 303 | Int res; |
| 304 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 305 | VGP_PUSHCC(VgpSyscall); |
| 306 | |
| 307 | /* Since buggy syscall wrappers sometimes break this, we may as well |
| 308 | check ourselves. */ |
| 309 | if (! VG_(first_and_last_secondaries_look_plausible)) |
| 310 | sane_before_call = False; |
| 311 | |
| 312 | /* the syscall no is in %eax. For syscalls with <= 5 args, |
| 313 | args 1 .. 5 to the syscall are in %ebx %ecx %edx %esi %edi. |
| 314 | For calls with > 5 args, %ebx points to a lump of memory |
| 315 | containing the args. |
| 316 | |
| 317 | The result is returned in %eax. If this value >= 0, the call |
| 318 | succeeded, and this is the return value. If < 0, it failed, and |
| 319 | the negation of this value is errno. To be more specific, |
| 320 | if res is in the range -EMEDIUMTYPE (-124) .. -EPERM (-1) |
| 321 | (kernel 2.4.9 sources, include/asm-i386/errno.h) |
| 322 | then it indicates an error. Otherwise it doesn't. |
| 323 | |
| 324 | Dirk Mueller (mueller@kde.org) says that values -4095 .. -1 |
| 325 | (inclusive?) indicate error returns. Not sure where the -4095 |
| 326 | comes from. |
| 327 | */ |
| 328 | |
| 329 | if (VG_(clo_trace_syscalls)) |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 330 | VG_(printf)("SYSCALL[%d,%d](%3d): ", |
| 331 | VG_(getpid)(), tid, syscallno); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 332 | |
| 333 | switch (syscallno) { |
| 334 | |
| 335 | case __NR_sigaltstack: |
| 336 | VG_(unimplemented) |
| 337 | ("client signals on alternative stack (SA_ONSTACK)"); |
| 338 | break; |
| 339 | |
| 340 | case __NR_clone: |
| 341 | VG_(unimplemented) |
sewardj | 827d95b | 2002-04-16 02:09:31 +0000 | [diff] [blame] | 342 | ("clone(): not supported by Valgrind.\n " |
| 343 | "We do now support programs linked against\n " |
| 344 | "libpthread.so, though. Re-run with -v and ensure that\n " |
| 345 | "you are picking up Valgrind's implementation of libpthread.so."); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 346 | break; |
| 347 | |
| 348 | # if defined(__NR_modify_ldt) |
| 349 | case __NR_modify_ldt: |
| 350 | VG_(unimplemented) |
| 351 | ("modify_ldt(): I (JRS) haven't investigated this yet; sorry."); |
| 352 | break; |
| 353 | # endif |
| 354 | |
sewardj | 73f1f07 | 2002-03-29 14:22:46 +0000 | [diff] [blame] | 355 | /* !!!!!!!!!! New, untested syscalls !!!!!!!!!!!!!!!!!!!!! */ |
| 356 | |
sewardj | 6e435c0 | 2002-04-24 02:24:44 +0000 | [diff] [blame] | 357 | # if defined(__NR_madvise) |
| 358 | case __NR_madvise: /* syscall 219 */ |
| 359 | /* int madvise(void *start, size_t length, int advice ); */ |
| 360 | if (VG_(clo_trace_syscalls)) |
| 361 | VG_(printf)("madvise ( %p, %d, %d )\n", arg1,arg2,arg3); |
| 362 | KERNEL_DO_SYSCALL(tid,res); |
| 363 | break; |
| 364 | # endif |
| 365 | |
sewardj | 6af4b5d | 2002-04-16 04:40:49 +0000 | [diff] [blame] | 366 | # if defined(__NR_mremap) |
| 367 | /* Is this really right? Perhaps it should copy the permissions |
| 368 | from the old area into the new. Unclear from the Linux man |
| 369 | pages what this really does. Also, the flags don't look like |
| 370 | they mean the same as the standard mmap flags, so that's |
| 371 | probably wrong too. */ |
| 372 | case __NR_mremap: /* syscall 163 */ |
| 373 | /* void* mremap(void * old_address, size_t old_size, |
| 374 | size_t new_size, unsigned long flags); */ |
| 375 | if (VG_(clo_trace_syscalls)) |
| 376 | VG_(printf)("mremap ( %p, %d, %d, 0x%x )\n", |
| 377 | arg1, arg2, arg3, arg4); |
| 378 | must_be_writable ( tst, "mremap(old_address)", arg1, arg2 ); |
| 379 | KERNEL_DO_SYSCALL(tid,res); |
| 380 | if (!VG_(is_kerror)(res)) { |
| 381 | /* Copied from munmap() wrapper. */ |
| 382 | Addr start = arg1; |
| 383 | Addr length = arg2; |
| 384 | while ((start % VKI_BYTES_PER_PAGE) > 0) { start--; length++; } |
| 385 | while (((start+length) % VKI_BYTES_PER_PAGE) > 0) { length++; } |
| 386 | make_noaccess( start, length ); |
| 387 | VG_(symtab_notify_munmap) ( start, length ); |
| 388 | approximate_mmap_permissions( (Addr)res, arg3, arg4 ); |
| 389 | } |
| 390 | break; |
| 391 | # endif |
| 392 | |
sewardj | 73f1f07 | 2002-03-29 14:22:46 +0000 | [diff] [blame] | 393 | case __NR_nice: /* syscall 34 */ |
| 394 | /* int nice(int inc); */ |
| 395 | if (VG_(clo_trace_syscalls)) |
| 396 | VG_(printf)("nice ( %d )\n", arg1); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 397 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | 73f1f07 | 2002-03-29 14:22:46 +0000 | [diff] [blame] | 398 | break; |
| 399 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 400 | /* !!!!!!!!!! New, untested syscalls, 14 Mar 02 !!!!!!!!!! */ |
| 401 | |
sewardj | d7f0766 | 2002-03-24 10:49:46 +0000 | [diff] [blame] | 402 | # if defined(__NR_setresgid32) |
| 403 | case __NR_setresgid32: /* syscall 210 */ |
| 404 | /* int setresgid(gid_t rgid, gid_t egid, gid_t sgid); */ |
| 405 | if (VG_(clo_trace_syscalls)) |
| 406 | VG_(printf)("setresgid32 ( %d, %d, %d )\n", arg1, arg2, arg3); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 407 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | d7f0766 | 2002-03-24 10:49:46 +0000 | [diff] [blame] | 408 | break; |
| 409 | # endif |
| 410 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 411 | # if defined(__NR_setfsuid32) |
| 412 | case __NR_setfsuid32: /* syscall 215 */ |
| 413 | /* int setfsuid(uid_t fsuid); */ |
| 414 | if (VG_(clo_trace_syscalls)) |
| 415 | VG_(printf)("setfsuid ( %d )\n", arg1); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 416 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 417 | break; |
| 418 | # endif |
| 419 | |
| 420 | # if defined(__NR__sysctl) |
| 421 | case __NR__sysctl: |
| 422 | /* int _sysctl(struct __sysctl_args *args); */ |
| 423 | if (VG_(clo_trace_syscalls)) |
| 424 | VG_(printf)("_sysctl ( %p )\n", arg1 ); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 425 | must_be_writable ( tst, "_sysctl(args)", arg1, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 426 | sizeof(struct __sysctl_args) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 427 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 428 | if (!VG_(is_kerror)(res)) |
| 429 | make_readable ( arg1, sizeof(struct __sysctl_args) ); |
| 430 | break; |
| 431 | # endif |
| 432 | |
| 433 | # if defined(__NR_sched_getscheduler) |
| 434 | case __NR_sched_getscheduler: |
| 435 | /* int sched_getscheduler(pid_t pid); */ |
| 436 | if (VG_(clo_trace_syscalls)) |
| 437 | VG_(printf)("sched_getscheduler ( %d )\n", arg1); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 438 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 439 | break; |
| 440 | # endif |
| 441 | |
| 442 | # if defined(__NR_sched_setscheduler) |
| 443 | case __NR_sched_setscheduler: |
| 444 | /* int sched_setscheduler(pid_t pid, int policy, |
| 445 | const struct sched_param *p); */ |
| 446 | if (VG_(clo_trace_syscalls)) |
| 447 | VG_(printf)("sched_setscheduler ( %d, %d, %p )\n",arg1,arg2,arg3); |
| 448 | if (arg3 != (UInt)NULL) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 449 | must_be_readable( tst, |
| 450 | "sched_setscheduler(struct sched_param *p)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 451 | arg3, sizeof(struct sched_param)); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 452 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 453 | break; |
| 454 | # endif |
| 455 | |
| 456 | # if defined(__NR_mlockall) |
| 457 | case __NR_mlockall: |
| 458 | /* int mlockall(int flags); */ |
| 459 | if (VG_(clo_trace_syscalls)) |
| 460 | VG_(printf)("mlockall ( %x )\n", arg1); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 461 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 462 | break; |
| 463 | # endif |
| 464 | |
| 465 | # if defined(__NR_munlockall) |
| 466 | case __NR_munlockall: |
| 467 | /* int munlockall(void); */ |
| 468 | if (VG_(clo_trace_syscalls)) |
| 469 | VG_(printf)("munlockall ( )\n"); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 470 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 471 | break; |
| 472 | # endif |
| 473 | |
| 474 | #if defined(__NR_sched_get_priority_max) |
| 475 | case __NR_sched_get_priority_max: |
| 476 | /* int sched_get_priority_max(int policy); */ |
| 477 | if (VG_(clo_trace_syscalls)) |
| 478 | VG_(printf)("sched_get_priority_max ( %d )\n", arg1); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 479 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 480 | break; |
| 481 | # endif |
| 482 | |
sewardj | 9dfb4a7 | 2002-04-27 01:56:30 +0000 | [diff] [blame] | 483 | #if defined(__NR_sched_get_priority_min) |
| 484 | case __NR_sched_get_priority_min: /* syscall 160 */ |
| 485 | /* int sched_get_priority_min(int policy); */ |
| 486 | if (VG_(clo_trace_syscalls)) |
| 487 | VG_(printf)("sched_get_priority_min ( %d )\n", arg1); |
| 488 | KERNEL_DO_SYSCALL(tid,res); |
| 489 | break; |
| 490 | # endif |
| 491 | |
| 492 | #if defined(__NR_setpriority) |
| 493 | case __NR_setpriority: /* syscall 97 */ |
| 494 | /* int setpriority(int which, int who, int prio); */ |
| 495 | if (VG_(clo_trace_syscalls)) |
| 496 | VG_(printf)("setpriority ( %d, %d, %d )\n", arg1, arg2, arg3); |
| 497 | KERNEL_DO_SYSCALL(tid,res); |
| 498 | break; |
| 499 | # endif |
| 500 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 501 | # if defined(__NR_setfsgid) |
| 502 | case __NR_setfsgid: /* syscall 139 */ |
| 503 | /* int setfsgid(gid_t gid); */ |
| 504 | if (VG_(clo_trace_syscalls)) |
| 505 | VG_(printf)("setfsgid ( %d )\n", arg1); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 506 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 507 | break; |
| 508 | # endif |
| 509 | |
| 510 | # if defined(__NR_setregid) |
| 511 | case __NR_setregid: /* syscall 71 */ |
| 512 | /* int setregid(gid_t rgid, gid_t egid); */ |
| 513 | if (VG_(clo_trace_syscalls)) |
| 514 | VG_(printf)("setregid ( %d, %d )\n", arg1, arg2); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 515 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 516 | break; |
| 517 | # endif |
| 518 | |
| 519 | # if defined(__NR_setresuid) |
| 520 | case __NR_setresuid: /* syscall 164 */ |
| 521 | /* int setresuid(uid_t ruid, uid_t euid, uid_t suid); */ |
| 522 | if (VG_(clo_trace_syscalls)) |
| 523 | VG_(printf)("setresuid ( %d, %d, %d )\n", arg1, arg2, arg3); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 524 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 525 | break; |
| 526 | # endif |
| 527 | |
| 528 | # if defined(__NR_setfsuid) |
| 529 | case __NR_setfsuid: /* syscall 138 */ |
| 530 | /* int setfsuid(uid_t uid); */ |
| 531 | if (VG_(clo_trace_syscalls)) |
| 532 | VG_(printf)("setfsuid ( %d )\n", arg1); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 533 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 534 | break; |
| 535 | # endif |
| 536 | |
| 537 | /* !!!!!!!!!! New, untested syscalls, 8 Mar 02 !!!!!!!!!!! */ |
| 538 | |
| 539 | # if defined(__NR_sendfile) |
| 540 | case __NR_sendfile: /* syscall 187 */ |
| 541 | /* ssize_t sendfile(int out_fd, int in_fd, off_t *offset, |
| 542 | size_t count) */ |
| 543 | if (VG_(clo_trace_syscalls)) |
| 544 | VG_(printf)("sendfile ( %d, %d, %p, %d )\n",arg1,arg2,arg3,arg4); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 545 | must_be_writable( tst, "sendfile(offset)", arg3, sizeof(off_t) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 546 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 547 | if (!VG_(is_kerror)(res)) { |
| 548 | make_readable( arg3, sizeof( off_t ) ); |
| 549 | } |
| 550 | break; |
| 551 | # endif |
| 552 | |
| 553 | /* !!!!!!!!!! New, untested syscalls, 7 Mar 02 !!!!!!!!!!! */ |
| 554 | |
| 555 | # if defined(__NR_pwrite) |
| 556 | case __NR_pwrite: /* syscall 181 */ |
| 557 | /* ssize_t pwrite (int fd, const void *buf, size_t nbytes, |
| 558 | off_t offset); */ |
| 559 | if (VG_(clo_trace_syscalls)) |
| 560 | VG_(printf)("pwrite ( %d, %p, %d, %d )\n", arg1, arg2, arg3, arg4); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 561 | must_be_readable( tst, "pwrite(buf)", arg2, arg3 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 562 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 563 | break; |
| 564 | # endif |
| 565 | |
| 566 | /* !!!!!!!!!! New, untested syscalls, 6 Mar 02 !!!!!!!!!!! */ |
| 567 | |
| 568 | case __NR_sync: /* syscall 36 */ |
| 569 | /* int sync(); */ |
| 570 | if (VG_(clo_trace_syscalls)) |
| 571 | VG_(printf)("sync ( )\n"); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 572 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 573 | break; |
| 574 | |
| 575 | case __NR_fstatfs: /* syscall 100 */ |
| 576 | /* int fstatfs(int fd, struct statfs *buf); */ |
| 577 | if (VG_(clo_trace_syscalls)) |
| 578 | VG_(printf)("fstatfs ( %d, %p )\n",arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 579 | must_be_writable( tst, "stat(buf)", arg2, sizeof(struct statfs) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 580 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 581 | if (!VG_(is_kerror)(res)) |
| 582 | make_readable( arg2, sizeof(struct statfs) ); |
| 583 | break; |
| 584 | |
| 585 | /* !!!!!!!!!! New, untested syscalls, 4 Mar 02 !!!!!!!!!!! */ |
| 586 | |
| 587 | case __NR_pause: /* syscall 29 */ |
| 588 | /* int pause(void); */ |
| 589 | if (VG_(clo_trace_syscalls)) |
| 590 | VG_(printf)("pause ( )\n"); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 591 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 592 | break; |
| 593 | |
| 594 | case __NR_getsid: /* syscall 147 */ |
| 595 | /* pid_t getsid(pid_t pid); */ |
| 596 | if (VG_(clo_trace_syscalls)) |
| 597 | VG_(printf)("getsid ( %d )\n", arg1); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 598 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 599 | break; |
| 600 | |
| 601 | # if defined(__NR_pread) |
| 602 | case __NR_pread: /* syscall 180 */ |
| 603 | /* ssize_t pread(int fd, void *buf, size_t count, off_t offset); */ |
| 604 | if (VG_(clo_trace_syscalls)) |
| 605 | VG_(printf)("pread ( %d, %p, %d, %d ) ...\n",arg1,arg2,arg3,arg4); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 606 | must_be_writable( tst, "pread(buf)", arg2, arg3 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 607 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 608 | if (VG_(clo_trace_syscalls)) |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 609 | VG_(printf)("SYSCALL[%d] pread ( %d, %p, %d, %d ) --> %d\n", |
| 610 | VG_(getpid)(), |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 611 | arg1, arg2, arg3, arg4, res); |
| 612 | if (!VG_(is_kerror)(res) && res > 0) { |
| 613 | make_readable( arg2, res ); |
| 614 | } |
| 615 | break; |
| 616 | # endif |
| 617 | |
| 618 | /* !!!!!!!!!! New, untested syscalls, 27 Feb 02 !!!!!!!!!! */ |
| 619 | |
| 620 | case __NR_mknod: /* syscall 14 */ |
| 621 | /* int mknod(const char *pathname, mode_t mode, dev_t dev); */ |
| 622 | if (VG_(clo_trace_syscalls)) |
| 623 | VG_(printf)("mknod ( %p, 0x%x, 0x%x )\n", arg1, arg2, arg3 ); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 624 | must_be_readable_asciiz( tst, "mknod(pathname)", arg1 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 625 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 626 | break; |
| 627 | |
| 628 | case __NR_flock: /* syscall 143 */ |
| 629 | /* int flock(int fd, int operation); */ |
| 630 | if (VG_(clo_trace_syscalls)) |
| 631 | VG_(printf)("flock ( %d, %d )\n", arg1, arg2 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 632 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 633 | break; |
| 634 | |
| 635 | # if defined(__NR_rt_sigsuspend) |
| 636 | /* Viewed with great suspicion by me, but, hey, let's do it |
| 637 | anyway ... */ |
| 638 | case __NR_rt_sigsuspend: /* syscall 179 */ |
| 639 | /* int sigsuspend(const sigset_t *mask); */ |
| 640 | if (VG_(clo_trace_syscalls)) |
| 641 | VG_(printf)("sigsuspend ( %p )\n", arg1 ); |
| 642 | if (arg1 != (Addr)NULL) { |
| 643 | /* above NULL test is paranoia */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 644 | must_be_readable( tst, "sigsuspend(mask)", arg1, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 645 | sizeof(vki_ksigset_t) ); |
| 646 | } |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 647 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 648 | break; |
| 649 | # endif |
| 650 | |
| 651 | case __NR_init_module: /* syscall 128 */ |
| 652 | /* int init_module(const char *name, struct module *image); */ |
| 653 | if (VG_(clo_trace_syscalls)) |
| 654 | VG_(printf)("init_module ( %p, %p )\n", arg1, arg2 ); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 655 | must_be_readable_asciiz( tst, "init_module(name)", arg1 ); |
| 656 | must_be_readable( tst, "init_module(image)", arg2, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 657 | sizeof(struct module) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 658 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 659 | break; |
| 660 | |
| 661 | case __NR_ioperm: /* syscall 101 */ |
| 662 | /* int ioperm(unsigned long from, unsigned long num, int turn_on); */ |
| 663 | if (VG_(clo_trace_syscalls)) |
| 664 | VG_(printf)("ioperm ( %d, %d, %d )\n", arg1, arg2, arg3 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 665 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 666 | break; |
| 667 | |
| 668 | case __NR_capget: /* syscall 184 */ |
| 669 | /* int capget(cap_user_header_t header, cap_user_data_t data); */ |
| 670 | if (VG_(clo_trace_syscalls)) |
| 671 | VG_(printf)("capget ( %p, %p )\n", arg1, arg2 ); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 672 | must_be_readable( tst, "capget(header)", arg1, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 673 | sizeof(vki_cap_user_header_t) ); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 674 | must_be_writable( tst, "capget(data)", arg2, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 675 | sizeof( vki_cap_user_data_t) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 676 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 677 | if (!VG_(is_kerror)(res) && arg2 != (Addr)NULL) |
| 678 | make_readable ( arg2, sizeof( vki_cap_user_data_t) ); |
| 679 | break; |
| 680 | |
| 681 | /* !!!!!!!!!!!!!!!!!!!!! mutant ones !!!!!!!!!!!!!!!!!!!!! */ |
| 682 | |
| 683 | case __NR_execve: |
| 684 | /* int execve (const char *filename, |
| 685 | char *const argv [], |
| 686 | char *const envp[]); */ |
| 687 | if (VG_(clo_trace_syscalls)) |
| 688 | VG_(printf)("execve ( %p(%s), %p, %p ) --- NOT CHECKED\n", |
| 689 | arg1, arg1, arg2, arg3); |
| 690 | /* Make any binding for LD_PRELOAD disappear, so that child |
| 691 | processes don't get traced into. */ |
| 692 | if (!VG_(clo_trace_children)) { |
| 693 | Int i; |
| 694 | Char** envp = (Char**)arg3; |
| 695 | for (i = 0; envp[i] != NULL; i++) { |
| 696 | if (VG_(strncmp)(envp[i], "LD_PRELOAD=", 11) == 0) { |
| 697 | VG_(mash_LD_PRELOAD_string)(&envp[i][11]); |
| 698 | } |
| 699 | } |
| 700 | } |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 701 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 702 | /* Should we still be alive here? Don't think so. */ |
| 703 | /* Actually, above comment is wrong. execve can fail, just |
| 704 | like any other syscall -- typically the file to exec does |
| 705 | not exist. Hence: */ |
| 706 | vg_assert(VG_(is_kerror)(res)); |
| 707 | break; |
| 708 | |
| 709 | case __NR_exit: /* syscall 1 */ |
| 710 | /* void _exit(int status); */ |
| 711 | if (VG_(clo_trace_syscalls)) |
| 712 | VG_(printf)("exit ( %d )\n", arg1); |
| 713 | VG_(message)(Vg_UserMsg, |
| 714 | "Warning: client exiting by calling exit(%d). Bye!", |
| 715 | arg1); |
| 716 | |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 717 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 718 | /* Definitely should not be alive here :) */ |
| 719 | break; |
| 720 | |
| 721 | /* !!!!!!!!!!!!!!!!!!!!! end !!!!!!!!!!!!!!!!!!!!! */ |
| 722 | |
| 723 | case __NR_access: /* syscall 33 */ |
| 724 | /* int access(const char *pathname, int mode); */ |
| 725 | if (VG_(clo_trace_syscalls)) |
| 726 | VG_(printf)("access ( %p, %d )\n", arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 727 | must_be_readable_asciiz( tst, "access(pathname)", arg1 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 728 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 729 | break; |
| 730 | |
| 731 | case __NR_alarm: /* syscall 27 */ |
| 732 | /* unsigned int alarm(unsigned int seconds); */ |
| 733 | if (VG_(clo_trace_syscalls)) |
| 734 | VG_(printf)("alarm ( %d )\n", arg1); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 735 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 736 | break; |
| 737 | |
| 738 | case __NR_brk: /* syscall 45 */ |
| 739 | /* Haven't a clue if this is really right. */ |
| 740 | /* int brk(void *end_data_segment); */ |
| 741 | if (VG_(clo_trace_syscalls)) |
| 742 | VG_(printf)("brk ( %p ) --> ",arg1); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 743 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 744 | if (VG_(clo_trace_syscalls)) |
| 745 | VG_(printf)("0x%x\n", res); |
| 746 | |
| 747 | if (!VG_(is_kerror)(res)) { |
| 748 | if (arg1 == 0) { |
| 749 | /* Just asking where the current end is. (???) */ |
| 750 | VGM_(curr_dataseg_end) = res; |
| 751 | } else |
| 752 | if (arg1 < VGM_(curr_dataseg_end)) { |
| 753 | /* shrinking the data segment. */ |
| 754 | make_noaccess( (Addr)arg1, |
| 755 | VGM_(curr_dataseg_end)-arg1 ); |
| 756 | VGM_(curr_dataseg_end) = arg1; |
| 757 | } else |
| 758 | if (arg1 > VGM_(curr_dataseg_end) && res != 0) { |
| 759 | /* asked for more memory, and got it */ |
| 760 | /* |
| 761 | VG_(printf)("BRK: new area %x .. %x\n", |
| 762 | VGM_(curr_dataseg_end, arg1-1 ); |
| 763 | */ |
| 764 | make_writable ( (Addr)VGM_(curr_dataseg_end), |
| 765 | arg1-VGM_(curr_dataseg_end) ); |
| 766 | VGM_(curr_dataseg_end) = arg1; |
| 767 | } |
| 768 | } |
| 769 | break; |
| 770 | |
| 771 | case __NR_chdir: /* syscall 12 */ |
| 772 | /* int chdir(const char *path); */ |
| 773 | if (VG_(clo_trace_syscalls)) |
| 774 | VG_(printf)("chdir ( %p )\n", arg1); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 775 | must_be_readable_asciiz( tst, "chdir(path)", arg1 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 776 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 777 | break; |
| 778 | |
| 779 | case __NR_chmod: /* syscall 15 */ |
| 780 | /* int chmod(const char *path, mode_t mode); */ |
| 781 | if (VG_(clo_trace_syscalls)) |
| 782 | VG_(printf)("chmod ( %p, %d )\n", arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 783 | must_be_readable_asciiz( tst, "chmod(path)", arg1 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 784 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 785 | break; |
| 786 | |
| 787 | # if defined(__NR_chown32) |
| 788 | case __NR_chown32: /* syscall 212 */ |
| 789 | # endif |
| 790 | # if defined(__NR_lchown32) |
| 791 | case __NR_lchown32: /* syscall 198 */ |
| 792 | # endif |
| 793 | case __NR_chown: /* syscall 16 */ |
| 794 | /* int chown(const char *path, uid_t owner, gid_t group); */ |
| 795 | if (VG_(clo_trace_syscalls)) |
| 796 | VG_(printf)("chown ( %p, 0x%x, 0x%x )\n", arg1,arg2,arg3); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 797 | must_be_readable_asciiz( tst, "chown(path)", arg1 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 798 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 799 | break; |
| 800 | |
| 801 | case __NR_close: /* syscall 6 */ |
| 802 | /* int close(int fd); */ |
| 803 | if (VG_(clo_trace_syscalls)) |
| 804 | VG_(printf)("close ( %d )\n",arg1); |
| 805 | /* Detect and negate attempts by the client to close Valgrind's |
| 806 | logfile fd ... */ |
| 807 | if (arg1 == VG_(clo_logfile_fd)) { |
| 808 | VG_(message)(Vg_UserMsg, |
| 809 | "Warning: client attempted to close " |
| 810 | "Valgrind's logfile fd (%d).", |
| 811 | VG_(clo_logfile_fd)); |
| 812 | VG_(message)(Vg_UserMsg, |
| 813 | " Use --logfile-fd=<number> to select an " |
| 814 | "alternative logfile fd." ); |
| 815 | } else { |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 816 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 817 | } |
| 818 | break; |
| 819 | |
| 820 | case __NR_dup: /* syscall 41 */ |
| 821 | /* int dup(int oldfd); */ |
| 822 | if (VG_(clo_trace_syscalls)) |
| 823 | VG_(printf)("dup ( %d ) --> ", arg1); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 824 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 825 | if (VG_(clo_trace_syscalls)) |
| 826 | VG_(printf)("%d\n", res); |
| 827 | break; |
| 828 | |
| 829 | case __NR_dup2: /* syscall 63 */ |
| 830 | /* int dup2(int oldfd, int newfd); */ |
| 831 | if (VG_(clo_trace_syscalls)) |
| 832 | VG_(printf)("dup2 ( %d, %d ) ...\n", arg1,arg2); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 833 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 834 | if (VG_(clo_trace_syscalls)) |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 835 | VG_(printf)("SYSCALL[%d] dup2 ( %d, %d ) = %d\n", |
| 836 | VG_(getpid)(), |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 837 | arg1, arg2, res); |
| 838 | break; |
| 839 | |
| 840 | case __NR_fcntl: /* syscall 55 */ |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 841 | /* int fcntl(int fd, int cmd, int arg); */ |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 842 | if (VG_(clo_trace_syscalls)) |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 843 | VG_(printf)("fcntl ( %d, %d, %d )\n",arg1,arg2,arg3); |
| 844 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 845 | break; |
| 846 | |
| 847 | case __NR_fchdir: /* syscall 133 */ |
| 848 | /* int fchdir(int fd); */ |
| 849 | if (VG_(clo_trace_syscalls)) |
| 850 | VG_(printf)("fchdir ( %d )\n", arg1); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 851 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 852 | break; |
| 853 | |
sewardj | 2f0de32 | 2002-03-24 10:17:25 +0000 | [diff] [blame] | 854 | # if defined(__NR_fchown32) |
| 855 | case __NR_fchown32: /* syscall 207 */ |
| 856 | # endif |
| 857 | case __NR_fchown: /* syscall 95 */ |
| 858 | /* int fchown(int filedes, uid_t owner, gid_t group); */ |
| 859 | if (VG_(clo_trace_syscalls)) |
| 860 | VG_(printf)("fchown ( %d, %d, %d )\n", arg1,arg2,arg3); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 861 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | 2f0de32 | 2002-03-24 10:17:25 +0000 | [diff] [blame] | 862 | break; |
| 863 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 864 | case __NR_fchmod: /* syscall 94 */ |
| 865 | /* int fchmod(int fildes, mode_t mode); */ |
| 866 | if (VG_(clo_trace_syscalls)) |
| 867 | VG_(printf)("fchmod ( %d, %d )\n", arg1,arg2); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 868 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 869 | break; |
sewardj | 2f0de32 | 2002-03-24 10:17:25 +0000 | [diff] [blame] | 870 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 871 | # if defined(__NR_fcntl64) |
| 872 | case __NR_fcntl64: /* syscall 221 */ |
| 873 | /* I don't know what the prototype for this is supposed to be. */ |
| 874 | /* ??? int fcntl(int fd, int cmd); */ |
| 875 | if (VG_(clo_trace_syscalls)) |
| 876 | VG_(printf)("fcntl64 (?!) ( %d, %d )\n", arg1,arg2); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 877 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 878 | break; |
| 879 | # endif |
| 880 | |
| 881 | case __NR_fstat: /* syscall 108 */ |
| 882 | /* int fstat(int filedes, struct stat *buf); */ |
| 883 | if (VG_(clo_trace_syscalls)) |
| 884 | VG_(printf)("fstat ( %d, %p )\n",arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 885 | must_be_writable( tst, "fstat", arg2, sizeof(struct stat) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 886 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 887 | if (!VG_(is_kerror)(res)) |
| 888 | make_readable( arg2, sizeof(struct stat) ); |
| 889 | break; |
| 890 | |
| 891 | case __NR_vfork: /* syscall 190 */ |
| 892 | /* pid_t vfork(void); */ |
| 893 | if (VG_(clo_trace_syscalls)) |
| 894 | VG_(printf)("vfork ( ) ... becomes ... "); |
| 895 | /* KLUDGE: we prefer to do a fork rather than vfork. |
| 896 | vfork gives a SIGSEGV, and the stated semantics looks |
| 897 | pretty much impossible for us. */ |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 898 | tst->m_eax = __NR_fork; |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 899 | /* fall through ... */ |
| 900 | case __NR_fork: /* syscall 2 */ |
| 901 | /* pid_t fork(void); */ |
| 902 | if (VG_(clo_trace_syscalls)) |
| 903 | VG_(printf)("fork ()\n"); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 904 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 905 | break; |
| 906 | |
| 907 | case __NR_fsync: /* syscall 118 */ |
| 908 | /* int fsync(int fd); */ |
| 909 | if (VG_(clo_trace_syscalls)) |
| 910 | VG_(printf)("fsync ( %d )\n", arg1); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 911 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 912 | break; |
| 913 | |
| 914 | case __NR_ftruncate: /* syscall 93 */ |
| 915 | /* int ftruncate(int fd, size_t length); */ |
| 916 | if (VG_(clo_trace_syscalls)) |
| 917 | VG_(printf)("ftruncate ( %d, %d )\n", arg1,arg2); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 918 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 919 | break; |
| 920 | |
sewardj | 2f0de32 | 2002-03-24 10:17:25 +0000 | [diff] [blame] | 921 | # if defined(__NR_ftruncate64) |
| 922 | case __NR_ftruncate64: /* syscall 194 */ |
| 923 | /* int ftruncate64(int fd, off64_t length); */ |
| 924 | if (VG_(clo_trace_syscalls)) |
| 925 | VG_(printf)("ftruncate64 ( %d, %lld )\n", |
| 926 | arg1,arg2|((long long) arg3 << 32)); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 927 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 928 | break; |
| 929 | # endif |
| 930 | |
| 931 | case __NR_getdents: /* syscall 141 */ |
| 932 | /* int getdents(unsigned int fd, struct dirent *dirp, |
| 933 | unsigned int count); */ |
| 934 | if (VG_(clo_trace_syscalls)) |
| 935 | VG_(printf)("getdents ( %d, %p, %d )\n",arg1,arg2,arg3); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 936 | must_be_writable( tst, "getdents(dirp)", arg2, arg3 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 937 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 938 | if (!VG_(is_kerror)(res) && res > 0) |
| 939 | make_readable( arg2, res ); |
| 940 | break; |
| 941 | |
| 942 | # if defined(__NR_getdents64) |
| 943 | case __NR_getdents64: /* syscall 220 */ |
| 944 | /* int getdents(unsigned int fd, struct dirent64 *dirp, |
| 945 | unsigned int count); */ |
| 946 | if (VG_(clo_trace_syscalls)) |
| 947 | VG_(printf)("getdents64 ( %d, %p, %d )\n",arg1,arg2,arg3); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 948 | must_be_writable( tst, "getdents64(dirp)", arg2, arg3 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 949 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 950 | if (!VG_(is_kerror)(res) && res > 0) |
| 951 | make_readable( arg2, res ); |
| 952 | break; |
| 953 | # endif |
| 954 | |
| 955 | # if defined(__NR_getgroups32) |
| 956 | case __NR_getgroups32: /* syscall 205 */ |
| 957 | # endif |
| 958 | case __NR_getgroups: /* syscall 80 */ |
| 959 | /* int getgroups(int size, gid_t list[]); */ |
| 960 | if (VG_(clo_trace_syscalls)) |
| 961 | VG_(printf)("getgroups ( %d, %p )\n", arg1, arg2); |
| 962 | if (arg1 > 0) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 963 | must_be_writable ( tst, "getgroups(list)", arg2, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 964 | arg1 * sizeof(gid_t) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 965 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 966 | if (arg1 > 0 && !VG_(is_kerror)(res) && res > 0) |
| 967 | make_readable ( arg2, res * sizeof(gid_t) ); |
| 968 | break; |
| 969 | |
| 970 | case __NR_getcwd: /* syscall 183 */ |
| 971 | /* char *getcwd(char *buf, size_t size); */ |
| 972 | if (VG_(clo_trace_syscalls)) |
| 973 | VG_(printf)("getcwd ( %p, %d )\n",arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 974 | must_be_writable( tst, "getcwd(buf)", arg1, arg2 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 975 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 976 | if (!VG_(is_kerror)(res) && res != (Addr)NULL) |
| 977 | make_readable ( arg1, arg2 ); |
| 978 | /* Not really right -- really we should have the asciiz |
| 979 | string starting at arg1 readable, or up to arg2 bytes, |
| 980 | whichever finishes first. */ |
| 981 | break; |
| 982 | |
| 983 | case __NR_geteuid: /* syscall 49 */ |
| 984 | /* uid_t geteuid(void); */ |
| 985 | if (VG_(clo_trace_syscalls)) |
| 986 | VG_(printf)("geteuid ( )\n"); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 987 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 988 | break; |
| 989 | |
| 990 | # if defined(__NR_geteuid32) |
| 991 | case __NR_geteuid32: /* syscall 201 */ |
| 992 | /* ?? uid_t geteuid32(void); */ |
| 993 | if (VG_(clo_trace_syscalls)) |
| 994 | VG_(printf)("geteuid32(?) ( )\n"); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 995 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 996 | break; |
| 997 | # endif |
| 998 | |
| 999 | case __NR_getegid: /* syscall 50 */ |
| 1000 | /* gid_t getegid(void); */ |
| 1001 | if (VG_(clo_trace_syscalls)) |
| 1002 | VG_(printf)("getegid ()\n"); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1003 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1004 | break; |
| 1005 | |
| 1006 | # if defined(__NR_getegid32) |
| 1007 | case __NR_getegid32: /* syscall 202 */ |
| 1008 | /* gid_t getegid32(void); */ |
| 1009 | if (VG_(clo_trace_syscalls)) |
| 1010 | VG_(printf)("getegid32 ()\n"); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1011 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1012 | break; |
| 1013 | # endif |
| 1014 | |
| 1015 | case __NR_getgid: /* syscall 47 */ |
| 1016 | /* gid_t getgid(void); */ |
| 1017 | if (VG_(clo_trace_syscalls)) |
| 1018 | VG_(printf)("getgid ()\n"); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1019 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1020 | break; |
| 1021 | |
| 1022 | # if defined(__NR_getgid32) |
| 1023 | case __NR_getgid32: /* syscall 200 */ |
| 1024 | /* gid_t getgid32(void); */ |
| 1025 | if (VG_(clo_trace_syscalls)) |
| 1026 | VG_(printf)("getgid32 ()\n"); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1027 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1028 | break; |
| 1029 | # endif |
| 1030 | |
| 1031 | case __NR_getpid: /* syscall 20 */ |
| 1032 | /* pid_t getpid(void); */ |
| 1033 | if (VG_(clo_trace_syscalls)) |
| 1034 | VG_(printf)("getpid ()\n"); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1035 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1036 | break; |
| 1037 | |
| 1038 | case __NR_getpgid: /* syscall 132 */ |
| 1039 | /* pid_t getpgid(pid_t pid); */ |
| 1040 | if (VG_(clo_trace_syscalls)) |
| 1041 | VG_(printf)("getpgid ( %d )\n", arg1); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1042 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1043 | break; |
| 1044 | |
| 1045 | case __NR_getpgrp: /* syscall 65 */ |
| 1046 | /* pid_t getpprp(void); */ |
| 1047 | if (VG_(clo_trace_syscalls)) |
| 1048 | VG_(printf)("getpgrp ()\n"); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1049 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1050 | break; |
| 1051 | |
| 1052 | case __NR_getppid: /* syscall 64 */ |
| 1053 | /* pid_t getppid(void); */ |
| 1054 | if (VG_(clo_trace_syscalls)) |
| 1055 | VG_(printf)("getppid ()\n"); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1056 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1057 | break; |
| 1058 | |
| 1059 | case __NR_getresgid: /* syscall 171 */ |
| 1060 | /* int getresgid(gid_t *rgid, gid_t *egid, gid_t *sgid); */ |
| 1061 | if (VG_(clo_trace_syscalls)) |
| 1062 | VG_(printf)("getresgid ( %p, %p, %p )\n", arg1,arg2,arg3); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1063 | must_be_writable ( tst, "getresgid(rgid)", arg1, sizeof(gid_t) ); |
| 1064 | must_be_writable ( tst, "getresgid(egid)", arg2, sizeof(gid_t) ); |
| 1065 | must_be_writable ( tst, "getresgid(sgid)", arg3, sizeof(gid_t) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1066 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1067 | if (!VG_(is_kerror)(res) && res == 0) { |
| 1068 | make_readable ( arg1, sizeof(gid_t) ); |
| 1069 | make_readable ( arg2, sizeof(gid_t) ); |
| 1070 | make_readable ( arg3, sizeof(gid_t) ); |
| 1071 | } |
| 1072 | break; |
| 1073 | |
| 1074 | # if defined(__NR_getresgid32) |
| 1075 | case __NR_getresgid32: /* syscall 211 */ |
| 1076 | /* int getresgid(gid_t *rgid, gid_t *egid, gid_t *sgid); */ |
| 1077 | if (VG_(clo_trace_syscalls)) |
| 1078 | VG_(printf)("getresgid32 ( %p, %p, %p )\n", arg1,arg2,arg3); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1079 | must_be_writable ( tst, "getresgid32(rgid)", arg1, sizeof(gid_t) ); |
| 1080 | must_be_writable ( tst, "getresgid32(egid)", arg2, sizeof(gid_t) ); |
| 1081 | must_be_writable ( tst, "getresgid32(sgid)", arg3, sizeof(gid_t) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1082 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1083 | if (!VG_(is_kerror)(res) && res == 0) { |
| 1084 | make_readable ( arg1, sizeof(gid_t) ); |
| 1085 | make_readable ( arg2, sizeof(gid_t) ); |
| 1086 | make_readable ( arg3, sizeof(gid_t) ); |
| 1087 | } |
| 1088 | break; |
| 1089 | # endif |
| 1090 | |
| 1091 | case __NR_getresuid: /* syscall 165 */ |
| 1092 | /* int getresuid(uid_t *ruid, uid_t *euid, uid_t *suid); */ |
| 1093 | if (VG_(clo_trace_syscalls)) |
| 1094 | VG_(printf)("getresuid ( %p, %p, %p )\n", arg1,arg2,arg3); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1095 | must_be_writable ( tst, "getresuid(ruid)", arg1, sizeof(uid_t) ); |
| 1096 | must_be_writable ( tst, "getresuid(euid)", arg2, sizeof(uid_t) ); |
| 1097 | must_be_writable ( tst, "getresuid(suid)", arg3, sizeof(uid_t) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1098 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1099 | if (!VG_(is_kerror)(res) && res == 0) { |
| 1100 | make_readable ( arg1, sizeof(uid_t) ); |
| 1101 | make_readable ( arg2, sizeof(uid_t) ); |
| 1102 | make_readable ( arg3, sizeof(uid_t) ); |
| 1103 | } |
| 1104 | break; |
| 1105 | |
| 1106 | # if defined(__NR_getresuid32) |
| 1107 | case __NR_getresuid32: /* syscall 209 */ |
| 1108 | /* int getresuid(uid_t *ruid, uid_t *euid, uid_t *suid); */ |
| 1109 | if (VG_(clo_trace_syscalls)) |
| 1110 | VG_(printf)("getresuid32 ( %p, %p, %p )\n", arg1,arg2,arg3); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1111 | must_be_writable ( tst, "getresuid32(ruid)", arg1, sizeof(uid_t) ); |
| 1112 | must_be_writable ( tst, "getresuid32(euid)", arg2, sizeof(uid_t) ); |
| 1113 | must_be_writable ( tst, "getresuid32(suid)", arg3, sizeof(uid_t) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1114 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1115 | if (!VG_(is_kerror)(res) && res == 0) { |
| 1116 | make_readable ( arg1, sizeof(uid_t) ); |
| 1117 | make_readable ( arg2, sizeof(uid_t) ); |
| 1118 | make_readable ( arg3, sizeof(uid_t) ); |
| 1119 | } |
| 1120 | break; |
| 1121 | # endif |
| 1122 | |
| 1123 | # if defined(__NR_ugetrlimit) |
| 1124 | case __NR_ugetrlimit: /* syscall 191 */ |
| 1125 | # endif |
| 1126 | case __NR_getrlimit: /* syscall 76 */ |
| 1127 | /* int getrlimit (int resource, struct rlimit *rlim); */ |
| 1128 | if (VG_(clo_trace_syscalls)) |
| 1129 | VG_(printf)("getrlimit ( %d, %p )\n", arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1130 | must_be_writable( tst, "getrlimit(rlim)", arg2, |
| 1131 | sizeof(struct rlimit) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1132 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1133 | if (!VG_(is_kerror)(res) && res == 0) |
| 1134 | make_readable( arg2, sizeof(struct rlimit) ); |
| 1135 | break; |
| 1136 | |
| 1137 | case __NR_getrusage: /* syscall 77 */ |
| 1138 | /* int getrusage (int who, struct rusage *usage); */ |
| 1139 | if (VG_(clo_trace_syscalls)) |
| 1140 | VG_(printf)("getrusage ( %d, %p )\n", arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1141 | must_be_writable( tst, "getrusage(usage)", arg2, |
| 1142 | sizeof(struct rusage) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1143 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1144 | if (!VG_(is_kerror)(res) && res == 0) |
| 1145 | make_readable(arg2, sizeof(struct rusage) ); |
| 1146 | break; |
| 1147 | |
| 1148 | case __NR_gettimeofday: /* syscall 78 */ |
| 1149 | /* int gettimeofday(struct timeval *tv, struct timezone *tz); */ |
| 1150 | if (VG_(clo_trace_syscalls)) |
| 1151 | VG_(printf)("gettimeofday ( %p, %p )\n",arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1152 | must_be_writable( tst, "gettimeofday(tv)", arg1, |
| 1153 | sizeof(struct timeval) ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1154 | if (arg2 != 0) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1155 | must_be_writable( tst, "gettimeofday(tz)", arg2, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1156 | sizeof(struct timezone) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1157 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1158 | if (!VG_(is_kerror)(res) && res == 0) { |
| 1159 | make_readable( arg1, sizeof(struct timeval) ); |
| 1160 | if (arg2 != 0) |
| 1161 | make_readable( arg2, sizeof(struct timezone) ); |
| 1162 | } |
| 1163 | break; |
| 1164 | |
| 1165 | case __NR_getuid: /* syscall 24 */ |
| 1166 | /* uid_t getuid(void); */ |
| 1167 | if (VG_(clo_trace_syscalls)) |
| 1168 | VG_(printf)("getuid ( )\n"); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1169 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1170 | break; |
| 1171 | |
| 1172 | # if defined(__NR_getuid32) |
| 1173 | case __NR_getuid32: /* syscall 199 */ |
| 1174 | /* ???uid_t getuid32(void); */ |
| 1175 | if (VG_(clo_trace_syscalls)) |
| 1176 | VG_(printf)("getuid32 ( )\n"); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1177 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1178 | break; |
| 1179 | # endif |
| 1180 | |
| 1181 | case __NR_ipc: /* syscall 117 */ |
| 1182 | /* int ipc ( unsigned int call, int first, int second, |
| 1183 | int third, void *ptr, long fifth); */ |
| 1184 | { |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1185 | UInt arg6 = tst->m_ebp; |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1186 | |
| 1187 | if (VG_(clo_trace_syscalls)) |
| 1188 | VG_(printf)("ipc ( %d, %d, %d, %d, %p, %d )\n", |
| 1189 | arg1,arg2,arg3,arg4,arg5,arg6); |
| 1190 | switch (arg1 /* call */) { |
| 1191 | case 1: /* IPCOP_semop */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1192 | must_be_readable ( tst, "semop(sops)", arg5, |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1193 | arg3 * sizeof(struct sembuf) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1194 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1195 | break; |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1196 | case 2: /* IPCOP_semget */ |
| 1197 | case 3: /* IPCOP_semctl */ |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1198 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1199 | break; |
| 1200 | case 11: /* IPCOP_msgsnd */ |
| 1201 | { |
| 1202 | struct msgbuf *msgp = (struct msgbuf *)arg5; |
| 1203 | Int msgsz = arg3; |
| 1204 | |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1205 | must_be_readable ( tst, "msgsnd(msgp->mtype)", |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1206 | (UInt)&msgp->mtype, sizeof(msgp->mtype) ); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1207 | must_be_readable ( tst, "msgsnd(msgp->mtext)", |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1208 | (UInt)msgp->mtext, msgsz ); |
| 1209 | |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1210 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1211 | break; |
| 1212 | } |
| 1213 | case 12: /* IPCOP_msgrcv */ |
| 1214 | { |
sewardj | 59c255c | 2002-04-27 02:06:15 +0000 | [diff] [blame^] | 1215 | struct msgbuf *msgp; |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1216 | Int msgsz = arg3; |
sewardj | 59c255c | 2002-04-27 02:06:15 +0000 | [diff] [blame^] | 1217 | |
| 1218 | msgp = (struct msgbuf *)safe_dereference( |
| 1219 | (Addr) (&((struct ipc_kludge *)arg5)->msgp), 0 ); |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1220 | |
sewardj | 59c255c | 2002-04-27 02:06:15 +0000 | [diff] [blame^] | 1221 | must_be_writable ( tst, "msgrcv(msgp->mtype)", |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1222 | (UInt)&msgp->mtype, sizeof(msgp->mtype) ); |
sewardj | 59c255c | 2002-04-27 02:06:15 +0000 | [diff] [blame^] | 1223 | must_be_writable ( tst, "msgrcv(msgp->mtext)", |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1224 | (UInt)msgp->mtext, msgsz ); |
| 1225 | |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1226 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1227 | |
| 1228 | if ( !VG_(is_kerror)(res) && res > 0 ) { |
| 1229 | make_readable ( (UInt)&msgp->mtype, sizeof(msgp->mtype) ); |
| 1230 | make_readable ( (UInt)msgp->mtext, res ); |
| 1231 | } |
| 1232 | break; |
| 1233 | } |
| 1234 | case 13: /* IPCOP_msgget */ |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1235 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1236 | break; |
| 1237 | case 14: /* IPCOP_msgctl */ |
| 1238 | { |
| 1239 | switch (arg3 /* cmd */) { |
| 1240 | case IPC_STAT: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1241 | must_be_writable ( tst, "msgctl(buf)", arg5, |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1242 | sizeof(struct msqid_ds) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1243 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1244 | if ( !VG_(is_kerror)(res) && res > 0 ) { |
| 1245 | make_readable ( arg5, sizeof(struct msqid_ds) ); |
| 1246 | } |
| 1247 | break; |
| 1248 | case IPC_SET: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1249 | must_be_readable ( tst, "msgctl(buf)", arg5, |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1250 | sizeof(struct msqid_ds) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1251 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1252 | break; |
sewardj | c9add3b | 2002-04-16 01:58:19 +0000 | [diff] [blame] | 1253 | # if defined(IPC_64) |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1254 | case IPC_STAT|IPC_64: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1255 | must_be_writable ( tst, "msgctl(buf)", arg5, |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1256 | sizeof(struct msqid64_ds) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1257 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1258 | if ( !VG_(is_kerror)(res) && res > 0 ) { |
| 1259 | make_readable ( arg5, sizeof(struct msqid64_ds) ); |
| 1260 | } |
| 1261 | break; |
sewardj | c9add3b | 2002-04-16 01:58:19 +0000 | [diff] [blame] | 1262 | # endif |
| 1263 | # if defined(IPC_64) |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1264 | case IPC_SET|IPC_64: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1265 | must_be_readable ( tst, "msgctl(buf)", arg5, |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1266 | sizeof(struct msqid64_ds) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1267 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1268 | break; |
sewardj | c9add3b | 2002-04-16 01:58:19 +0000 | [diff] [blame] | 1269 | # endif |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1270 | default: |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1271 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1272 | break; |
| 1273 | } |
| 1274 | break; |
| 1275 | } |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1276 | case 21: /* IPCOP_shmat */ |
| 1277 | { |
| 1278 | Int shmid = arg2; |
| 1279 | Int shmflag = arg3; |
| 1280 | UInt addr; |
| 1281 | |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1282 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1283 | |
| 1284 | if ( VG_(is_kerror) ( res ) ) |
| 1285 | break; |
| 1286 | |
| 1287 | /* force readability. before the syscall it is |
| 1288 | * indeed uninitialized, as can be seen in |
| 1289 | * glibc/sysdeps/unix/sysv/linux/shmat.c */ |
| 1290 | make_readable ( arg4, sizeof( ULong ) ); |
| 1291 | |
| 1292 | addr = safe_dereference ( arg4, 0 ); |
| 1293 | if ( addr > 0 ) { |
| 1294 | UInt segmentSize = get_shm_size ( shmid ); |
| 1295 | if ( segmentSize > 0 ) { |
| 1296 | if ( shmflag & SHM_RDONLY ) |
| 1297 | make_readable ( addr, segmentSize ); |
| 1298 | else |
| 1299 | make_readwritable ( addr, segmentSize ); |
| 1300 | } |
| 1301 | } |
| 1302 | break; |
| 1303 | } |
| 1304 | case 22: /* IPCOP_shmdt */ |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1305 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1306 | /* ### FIXME: this should call make_noaccess on the |
| 1307 | * area passed to shmdt. But there's no way to |
| 1308 | * figure out the size of the shared memory segment |
| 1309 | * just from the address... Maybe we want to keep a |
| 1310 | * copy of the exiting mappings inside valgrind? */ |
| 1311 | break; |
| 1312 | case 23: /* IPCOP_shmget */ |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1313 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1314 | break; |
| 1315 | case 24: /* IPCOP_shmctl */ |
| 1316 | { |
| 1317 | if ( arg3 > 0 ) { |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1318 | must_be_readable ( tst, "shmctl(buf)", arg3, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1319 | sizeof( struct shmid_ds ) ); |
| 1320 | |
| 1321 | if ( arg2 == SHM_STAT ) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1322 | must_be_writable( tst, "shmctl(IPC_STAT,buf)", arg3, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1323 | sizeof( struct shmid_ds ) ); |
| 1324 | } |
| 1325 | |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1326 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1327 | break; |
| 1328 | } |
| 1329 | default: |
| 1330 | VG_(message)(Vg_DebugMsg, |
| 1331 | "FATAL: unhandled syscall(ipc) %d", |
| 1332 | arg1 ); |
| 1333 | VG_(panic)("... bye!\n"); |
| 1334 | break; /*NOTREACHED*/ |
| 1335 | } |
| 1336 | } |
| 1337 | break; |
| 1338 | |
| 1339 | case __NR_ioctl: /* syscall 54 */ |
| 1340 | /* int ioctl(int d, int request, ...) |
| 1341 | [The "third" argument is traditionally char *argp, |
| 1342 | and will be so named for this discussion.] |
| 1343 | */ |
| 1344 | /* |
| 1345 | VG_(message)( |
| 1346 | Vg_DebugMsg, |
| 1347 | "is an IOCTL, request = 0x%x, d = %d, argp = 0x%x", |
| 1348 | arg2,arg1,arg3); |
| 1349 | */ |
| 1350 | if (VG_(clo_trace_syscalls)) |
| 1351 | VG_(printf)("ioctl ( %d, 0x%x, %p )\n",arg1,arg2,arg3); |
| 1352 | switch (arg2 /* request */) { |
| 1353 | case TCSETS: |
| 1354 | case TCSETSW: |
| 1355 | case TCSETSF: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1356 | must_be_readable( tst, "ioctl(TCSETSW)", arg3, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1357 | VKI_SIZEOF_STRUCT_TERMIOS ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1358 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1359 | break; |
| 1360 | case TCGETS: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1361 | must_be_writable( tst, "ioctl(TCGETS)", arg3, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1362 | VKI_SIZEOF_STRUCT_TERMIOS ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1363 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1364 | if (!VG_(is_kerror)(res) && res == 0) |
| 1365 | make_readable ( arg3, VKI_SIZEOF_STRUCT_TERMIOS ); |
| 1366 | break; |
sewardj | 2f0de32 | 2002-03-24 10:17:25 +0000 | [diff] [blame] | 1367 | case TCSETA: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1368 | must_be_readable( tst, "ioctl(TCSETA)", arg3, |
sewardj | 2f0de32 | 2002-03-24 10:17:25 +0000 | [diff] [blame] | 1369 | VKI_SIZEOF_STRUCT_TERMIO ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1370 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | 2f0de32 | 2002-03-24 10:17:25 +0000 | [diff] [blame] | 1371 | break; |
| 1372 | case TCGETA: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1373 | must_be_writable( tst, "ioctl(TCGETA)", arg3, |
sewardj | 2f0de32 | 2002-03-24 10:17:25 +0000 | [diff] [blame] | 1374 | VKI_SIZEOF_STRUCT_TERMIO ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1375 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | 2f0de32 | 2002-03-24 10:17:25 +0000 | [diff] [blame] | 1376 | if (!VG_(is_kerror)(res) && res == 0) |
| 1377 | make_readable ( arg3, VKI_SIZEOF_STRUCT_TERMIO ); |
| 1378 | break; |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1379 | case TCSBRK: |
| 1380 | case TCSBRKP: |
| 1381 | case TCFLSH: |
| 1382 | /* These just take an int by value */ |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1383 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1384 | break; |
| 1385 | case TIOCGWINSZ: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1386 | must_be_writable( tst, "ioctl(TIOCGWINSZ)", arg3, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1387 | sizeof(struct winsize) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1388 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1389 | if (!VG_(is_kerror)(res) && res == 0) |
| 1390 | make_readable ( arg3, sizeof(struct winsize) ); |
| 1391 | break; |
| 1392 | case TIOCSWINSZ: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1393 | must_be_readable( tst, "ioctl(TIOCSWINSZ)", arg3, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1394 | sizeof(struct winsize) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1395 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1396 | break; |
sewardj | 19fe3d0 | 2002-03-29 04:39:00 +0000 | [diff] [blame] | 1397 | case TIOCGPGRP: |
| 1398 | /* Get process group ID for foreground processing group. */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1399 | must_be_writable( tst, "ioctl(TIOCGPGRP)", arg3, |
sewardj | 19fe3d0 | 2002-03-29 04:39:00 +0000 | [diff] [blame] | 1400 | sizeof(pid_t) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1401 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | 19fe3d0 | 2002-03-29 04:39:00 +0000 | [diff] [blame] | 1402 | if (!VG_(is_kerror)(res) && res == 0) |
| 1403 | make_readable ( arg3, sizeof(pid_t) ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1404 | case TIOCGPTN: /* Get Pty Number (of pty-mux device) */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1405 | must_be_writable(tst, "ioctl(TIOCGPTN)", arg3, sizeof(int) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1406 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1407 | if (!VG_(is_kerror)(res) && res == 0) |
| 1408 | make_readable ( arg3, sizeof(int)); |
| 1409 | break; |
sewardj | 73f1f07 | 2002-03-29 14:22:46 +0000 | [diff] [blame] | 1410 | case TIOCSCTTY: |
| 1411 | /* Just takes an int value. */ |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1412 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | 73f1f07 | 2002-03-29 14:22:46 +0000 | [diff] [blame] | 1413 | break; |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1414 | case TIOCSPTLCK: /* Lock/unlock Pty */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1415 | must_be_readable( tst, "ioctl(TIOCSPTLCK)", arg3, sizeof(int) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1416 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1417 | break; |
| 1418 | case FIONBIO: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1419 | must_be_readable( tst, "ioctl(FIONBIO)", arg3, sizeof(int) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1420 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1421 | break; |
| 1422 | case FIOASYNC: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1423 | must_be_readable( tst, "ioctl(FIOASYNC)", arg3, sizeof(int) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1424 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1425 | break; |
| 1426 | case FIONREAD: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1427 | must_be_writable( tst, "ioctl(FIONREAD)", arg3, sizeof(int) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1428 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1429 | if (!VG_(is_kerror)(res) && res == 0) |
| 1430 | make_readable( arg3, sizeof(int) ); |
| 1431 | break; |
| 1432 | |
| 1433 | /* If you get compilation problems here, change the #if |
| 1434 | 1 to #if 0 and get rid of <scsi/sg.h> in |
| 1435 | vg_unsafe.h. */ |
| 1436 | # if 1 |
| 1437 | case SG_SET_COMMAND_Q: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1438 | must_be_readable( tst, "ioctl(SG_SET_COMMAND_Q)", |
| 1439 | arg3, sizeof(int) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1440 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1441 | break; |
| 1442 | # if defined(SG_IO) |
| 1443 | case SG_IO: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1444 | must_be_writable( tst, "ioctl(SG_IO)", arg3, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1445 | sizeof(struct sg_io_hdr) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1446 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1447 | if (!VG_(is_kerror)(res) && res == 0) |
| 1448 | make_readable (arg3, sizeof(struct sg_io_hdr)); |
| 1449 | break; |
| 1450 | # endif /* SG_IO */ |
| 1451 | case SG_GET_SCSI_ID: |
| 1452 | /* Note: sometimes sg_scsi_id is called sg_scsi_id_t */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1453 | must_be_writable( tst, "ioctl(SG_GET_SCSI_ID)", arg3, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1454 | sizeof(struct sg_scsi_id) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1455 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1456 | if (!VG_(is_kerror)(res) && res == 0) |
| 1457 | make_readable (arg3, sizeof(struct sg_scsi_id)); |
| 1458 | break; |
| 1459 | case SG_SET_RESERVED_SIZE: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1460 | must_be_readable( tst, "ioctl(SG_SET_RESERVED_SIZE)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1461 | arg3, sizeof(int) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1462 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1463 | break; |
| 1464 | case SG_SET_TIMEOUT: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1465 | must_be_readable( tst, "ioctl(SG_SET_TIMEOUT)", arg3, |
| 1466 | sizeof(int) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1467 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1468 | break; |
| 1469 | case SG_GET_RESERVED_SIZE: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1470 | must_be_writable( tst, "ioctl(SG_GET_RESERVED_SIZE)", arg3, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1471 | sizeof(int) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1472 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1473 | if (!VG_(is_kerror)(res) && res == 0) |
| 1474 | make_readable (arg3, sizeof(int)); |
| 1475 | break; |
| 1476 | case SG_GET_TIMEOUT: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1477 | must_be_writable( tst, "ioctl(SG_GET_TIMEOUT)", arg3, |
| 1478 | sizeof(int) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1479 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1480 | if (!VG_(is_kerror)(res) && res == 0) |
| 1481 | make_readable (arg3, sizeof(int)); |
| 1482 | break; |
| 1483 | case SG_GET_VERSION_NUM: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1484 | must_be_readable( tst, "ioctl(SG_GET_VERSION_NUM)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1485 | arg3, sizeof(int) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1486 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1487 | break; |
| 1488 | # endif |
| 1489 | |
| 1490 | case IIOCGETCPS: |
| 1491 | /* In early 2.4 kernels, ISDN_MAX_CHANNELS was only defined |
| 1492 | * when KERNEL was. I never saw a larger value than 64 though */ |
| 1493 | # ifndef ISDN_MAX_CHANNELS |
| 1494 | # define ISDN_MAX_CHANNELS 64 |
| 1495 | # endif |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1496 | must_be_writable( tst, "ioctl(IIOCGETCPS)", arg3, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1497 | ISDN_MAX_CHANNELS |
| 1498 | * 2 * sizeof(unsigned long) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1499 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1500 | if (!VG_(is_kerror)(res) && res == 0) |
| 1501 | make_readable ( arg3, ISDN_MAX_CHANNELS |
| 1502 | * 2 * sizeof(unsigned long) ); |
| 1503 | break; |
| 1504 | case IIOCNETGPN: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1505 | must_be_readable( tst, "ioctl(IIOCNETGPN)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1506 | (UInt)&((isdn_net_ioctl_phone *)arg3)->name, |
| 1507 | sizeof(((isdn_net_ioctl_phone *)arg3)->name) ); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1508 | must_be_writable( tst, "ioctl(IIOCNETGPN)", arg3, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1509 | sizeof(isdn_net_ioctl_phone) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1510 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1511 | if (!VG_(is_kerror)(res) && res == 0) |
| 1512 | make_readable ( arg3, sizeof(isdn_net_ioctl_phone) ); |
| 1513 | break; |
| 1514 | |
| 1515 | /* These all use struct ifreq AFAIK */ |
| 1516 | case SIOCGIFINDEX: |
| 1517 | case SIOCGIFFLAGS: /* get flags */ |
| 1518 | case SIOCGIFHWADDR: /* Get hardware address */ |
| 1519 | case SIOCGIFMTU: /* get MTU size */ |
| 1520 | case SIOCGIFADDR: /* get PA address */ |
| 1521 | case SIOCGIFNETMASK: /* get network PA mask */ |
| 1522 | case SIOCGIFMETRIC: /* get metric */ |
| 1523 | case SIOCGIFMAP: /* Get device parameters */ |
| 1524 | case SIOCGIFTXQLEN: /* Get the tx queue length */ |
| 1525 | case SIOCGIFDSTADDR: /* get remote PA address */ |
| 1526 | case SIOCGIFBRDADDR: /* get broadcast PA address */ |
| 1527 | case SIOCGIFNAME: /* get iface name */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1528 | must_be_writable(tst, "ioctl(SIOCGIFINDEX)", arg3, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1529 | sizeof(struct ifreq)); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1530 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1531 | if (!VG_(is_kerror)(res) && res == 0) |
| 1532 | make_readable (arg3, sizeof(struct ifreq)); |
| 1533 | break; |
| 1534 | case SIOCGIFCONF: /* get iface list */ |
| 1535 | /* WAS: |
| 1536 | must_be_writable("ioctl(SIOCGIFCONF)", arg3, |
| 1537 | sizeof(struct ifconf)); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1538 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1539 | if (!VG_(is_kerror)(res) && res == 0) |
| 1540 | make_readable (arg3, sizeof(struct ifconf)); |
| 1541 | */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1542 | must_be_readable(tst, "ioctl(SIOCGIFCONF)", arg3, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1543 | sizeof(struct ifconf)); |
| 1544 | if ( arg3 ) { |
| 1545 | // TODO len must be readable and writable |
| 1546 | // buf pointer only needs to be readable |
| 1547 | struct ifconf *ifc = (struct ifconf *) arg3; |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1548 | must_be_writable(tst, "ioctl(SIOCGIFCONF).ifc_buf", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1549 | (Addr)(ifc->ifc_buf), (UInt)(ifc->ifc_len) ); |
| 1550 | } |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1551 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1552 | if (!VG_(is_kerror)(res) && res == 0 && arg3 ) { |
| 1553 | struct ifconf *ifc = (struct ifconf *) arg3; |
| 1554 | make_readable ( (Addr)(ifc->ifc_buf), (UInt)(ifc->ifc_len) ); |
| 1555 | } |
| 1556 | break; |
| 1557 | case SIOCGSTAMP: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1558 | must_be_writable(tst, "ioctl(SIOCGSTAMP)", arg3, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1559 | sizeof(struct timeval)); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1560 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1561 | if (!VG_(is_kerror)(res) && res == 0) |
| 1562 | make_readable (arg3, sizeof(struct timeval)); |
| 1563 | break; |
| 1564 | case SIOCGRARP: /* get RARP table entry */ |
| 1565 | case SIOCGARP: /* get ARP table entry */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1566 | must_be_writable(tst, "ioctl(SIOCGARP)", arg3, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1567 | sizeof(struct arpreq)); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1568 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1569 | if (!VG_(is_kerror)(res) && res == 0) |
| 1570 | make_readable (arg3, sizeof(struct arpreq)); |
| 1571 | break; |
| 1572 | |
| 1573 | case SIOCSIFFLAGS: /* set flags */ |
| 1574 | case SIOCSIFMAP: /* Set device parameters */ |
| 1575 | case SIOCSIFTXQLEN: /* Set the tx queue length */ |
| 1576 | case SIOCSIFDSTADDR: /* set remote PA address */ |
| 1577 | case SIOCSIFBRDADDR: /* set broadcast PA address */ |
| 1578 | case SIOCSIFNETMASK: /* set network PA mask */ |
| 1579 | case SIOCSIFMETRIC: /* set metric */ |
| 1580 | case SIOCSIFADDR: /* set PA address */ |
| 1581 | case SIOCSIFMTU: /* set MTU size */ |
| 1582 | case SIOCSIFHWADDR: /* set hardware address */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1583 | must_be_readable(tst,"ioctl(SIOCSIFFLAGS)", arg3, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1584 | sizeof(struct ifreq)); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1585 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1586 | break; |
| 1587 | /* Routing table calls. */ |
| 1588 | case SIOCADDRT: /* add routing table entry */ |
| 1589 | case SIOCDELRT: /* delete routing table entry */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1590 | must_be_readable(tst,"ioctl(SIOCADDRT/DELRT)", arg3, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1591 | sizeof(struct rtentry)); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1592 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1593 | break; |
| 1594 | |
| 1595 | /* RARP cache control calls. */ |
| 1596 | case SIOCDRARP: /* delete RARP table entry */ |
| 1597 | case SIOCSRARP: /* set RARP table entry */ |
| 1598 | /* ARP cache control calls. */ |
| 1599 | case SIOCSARP: /* set ARP table entry */ |
| 1600 | case SIOCDARP: /* delete ARP table entry */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1601 | must_be_readable(tst, "ioctl(SIOCSIFFLAGS)", arg3, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1602 | sizeof(struct ifreq)); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1603 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1604 | break; |
| 1605 | |
| 1606 | case SIOCSPGRP: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1607 | must_be_readable( tst, "ioctl(SIOCSPGRP)", arg3, sizeof(int) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1608 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1609 | break; |
| 1610 | |
| 1611 | /* linux/soundcard interface (OSS) */ |
| 1612 | case SNDCTL_SEQ_GETOUTCOUNT: |
| 1613 | case SNDCTL_SEQ_GETINCOUNT: |
| 1614 | case SNDCTL_SEQ_PERCMODE: |
| 1615 | case SNDCTL_SEQ_TESTMIDI: |
| 1616 | case SNDCTL_SEQ_RESETSAMPLES: |
| 1617 | case SNDCTL_SEQ_NRSYNTHS: |
| 1618 | case SNDCTL_SEQ_NRMIDIS: |
| 1619 | case SNDCTL_SEQ_GETTIME: |
| 1620 | case SNDCTL_DSP_GETFMTS: |
| 1621 | case SNDCTL_DSP_GETTRIGGER: |
| 1622 | case SNDCTL_DSP_GETODELAY: |
| 1623 | # if defined(SNDCTL_DSP_GETSPDIF) |
| 1624 | case SNDCTL_DSP_GETSPDIF: |
| 1625 | # endif |
| 1626 | case SNDCTL_DSP_GETCAPS: |
| 1627 | case SOUND_PCM_READ_RATE: |
| 1628 | case SOUND_PCM_READ_CHANNELS: |
| 1629 | case SOUND_PCM_READ_BITS: |
| 1630 | case (SOUND_PCM_READ_BITS|0x40000000): /* what the fuck ? */ |
| 1631 | case SOUND_PCM_READ_FILTER: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1632 | must_be_writable(tst,"ioctl(SNDCTL_XXX|SOUND_XXX (SIOR, int))", |
| 1633 | arg3, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1634 | sizeof(int)); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1635 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1636 | if (!VG_(is_kerror)(res) && res == 0) |
| 1637 | make_readable (arg3, sizeof(int)); |
| 1638 | break; |
| 1639 | case SNDCTL_SEQ_CTRLRATE: |
| 1640 | case SNDCTL_DSP_SPEED: |
| 1641 | case SNDCTL_DSP_STEREO: |
| 1642 | case SNDCTL_DSP_GETBLKSIZE: |
| 1643 | case SNDCTL_DSP_CHANNELS: |
| 1644 | case SOUND_PCM_WRITE_FILTER: |
| 1645 | case SNDCTL_DSP_SUBDIVIDE: |
| 1646 | case SNDCTL_DSP_SETFRAGMENT: |
sewardj | 8a5089d | 2002-03-24 11:43:56 +0000 | [diff] [blame] | 1647 | # if defined(SNDCTL_DSP_GETCHANNELMASK) |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1648 | case SNDCTL_DSP_GETCHANNELMASK: |
sewardj | 8a5089d | 2002-03-24 11:43:56 +0000 | [diff] [blame] | 1649 | # endif |
| 1650 | # if defined(SNDCTL_DSP_BIND_CHANNEL) |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1651 | case SNDCTL_DSP_BIND_CHANNEL: |
sewardj | 8a5089d | 2002-03-24 11:43:56 +0000 | [diff] [blame] | 1652 | # endif |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1653 | case SNDCTL_TMR_TIMEBASE: |
| 1654 | case SNDCTL_TMR_TEMPO: |
| 1655 | case SNDCTL_TMR_SOURCE: |
| 1656 | case SNDCTL_MIDI_PRETIME: |
| 1657 | case SNDCTL_MIDI_MPUMODE: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1658 | must_be_readable(tst, "ioctl(SNDCTL_XXX|SOUND_XXX " |
| 1659 | "(SIOWR, int))", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1660 | arg3, sizeof(int)); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1661 | must_be_writable(tst, "ioctl(SNDCTL_XXX|SOUND_XXX " |
| 1662 | "(SIOWR, int))", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1663 | arg3, sizeof(int)); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1664 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1665 | break; |
| 1666 | case SNDCTL_DSP_GETOSPACE: |
| 1667 | case SNDCTL_DSP_GETISPACE: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1668 | must_be_writable(tst, |
| 1669 | "ioctl(SNDCTL_XXX|SOUND_XXX " |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1670 | "(SIOR, audio_buf_info))", arg3, |
| 1671 | sizeof(audio_buf_info)); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1672 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1673 | if (!VG_(is_kerror)(res) && res == 0) |
| 1674 | make_readable (arg3, sizeof(audio_buf_info)); |
| 1675 | break; |
| 1676 | case SNDCTL_DSP_SETTRIGGER: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1677 | must_be_readable(tst, "ioctl(SNDCTL_XXX|SOUND_XXX (SIOW, int))", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1678 | arg3, sizeof(int)); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1679 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1680 | break; |
| 1681 | |
| 1682 | /* We don't have any specific information on it, so |
| 1683 | try to do something reasonable based on direction and |
| 1684 | size bits. The encoding scheme is described in |
| 1685 | /usr/include/asm/ioctl.h. */ |
| 1686 | default: { |
| 1687 | UInt dir = _IOC_DIR(arg2); |
| 1688 | UInt size = _IOC_SIZE(arg2); |
| 1689 | if (/* size == 0 || */ dir == _IOC_NONE) { |
| 1690 | VG_(message)(Vg_UserMsg, |
| 1691 | "Warning: noted but unhandled ioctl 0x%x" |
| 1692 | " with no size/direction hints", |
| 1693 | arg2); |
| 1694 | VG_(message)(Vg_UserMsg, |
| 1695 | " This could cause spurious value errors" |
| 1696 | " to appear."); |
| 1697 | VG_(message)(Vg_UserMsg, |
| 1698 | " See README_MISSING_SYSCALL_OR_IOCTL for guidance on" |
| 1699 | " writing a proper wrapper." ); |
| 1700 | } else { |
| 1701 | if ((dir & _IOC_READ) && size > 0) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1702 | must_be_readable(tst, "ioctl(generic)", arg3, size); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1703 | if ((dir & _IOC_WRITE) && size > 0) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1704 | must_be_writable(tst, "ioctl(generic)", arg3, size); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1705 | } |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1706 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1707 | if (size > 0 && (dir & _IOC_WRITE) |
| 1708 | && !VG_(is_kerror)(res) && res == 0) |
| 1709 | make_readable (arg3, size); |
| 1710 | break; |
| 1711 | } |
| 1712 | } |
| 1713 | break; |
| 1714 | |
| 1715 | case __NR_kill: /* syscall 37 */ |
| 1716 | /* int kill(pid_t pid, int sig); */ |
| 1717 | if (VG_(clo_trace_syscalls)) |
| 1718 | VG_(printf)("kill ( %d, %d )\n", arg1,arg2); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1719 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1720 | break; |
| 1721 | |
| 1722 | case __NR_link: /* syscall 9 */ |
| 1723 | /* int link(const char *oldpath, const char *newpath); */ |
| 1724 | if (VG_(clo_trace_syscalls)) |
| 1725 | VG_(printf)("link ( %p, %p)\n", arg1, arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1726 | must_be_readable_asciiz( tst, "link(oldpath)", arg1); |
| 1727 | must_be_readable_asciiz( tst, "link(newpath)", arg2); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1728 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1729 | break; |
| 1730 | |
| 1731 | case __NR_lseek: /* syscall 19 */ |
| 1732 | /* off_t lseek(int fildes, off_t offset, int whence); */ |
| 1733 | if (VG_(clo_trace_syscalls)) |
| 1734 | VG_(printf)("lseek ( %d, %d, %d )\n",arg1,arg2,arg3); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1735 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1736 | break; |
| 1737 | |
| 1738 | case __NR__llseek: /* syscall 140 */ |
| 1739 | /* int _llseek(unsigned int fd, unsigned long offset_high, |
| 1740 | unsigned long offset_low, |
| 1741 | loff_t * result, unsigned int whence); */ |
| 1742 | if (VG_(clo_trace_syscalls)) |
| 1743 | VG_(printf)("llseek ( %d, 0x%x, 0x%x, %p, %d )\n", |
| 1744 | arg1,arg2,arg3,arg4,arg5); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1745 | must_be_writable( tst, "llseek(result)", arg4, sizeof(loff_t)); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1746 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1747 | if (!VG_(is_kerror)(res) && res == 0) |
| 1748 | make_readable( arg4, sizeof(loff_t) ); |
| 1749 | break; |
| 1750 | |
| 1751 | case __NR_lstat: /* syscall 107 */ |
| 1752 | /* int lstat(const char *file_name, struct stat *buf); */ |
| 1753 | if (VG_(clo_trace_syscalls)) |
| 1754 | VG_(printf)("lstat ( %p, %p )\n",arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1755 | must_be_readable_asciiz( tst, "lstat(file_name)", arg1 ); |
| 1756 | must_be_writable( tst, "lstat(buf)", arg2, sizeof(struct stat) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1757 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1758 | if (!VG_(is_kerror)(res) && res == 0) { |
| 1759 | make_readable( arg2, sizeof(struct stat) ); |
| 1760 | } |
| 1761 | break; |
| 1762 | |
| 1763 | # if defined(__NR_lstat64) |
| 1764 | case __NR_lstat64: /* syscall 196 */ |
| 1765 | /* int lstat64(const char *file_name, struct stat64 *buf); */ |
| 1766 | if (VG_(clo_trace_syscalls)) |
| 1767 | VG_(printf)("lstat64 ( %p, %p )\n",arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1768 | must_be_readable_asciiz( tst, "lstat64(file_name)", arg1 ); |
| 1769 | must_be_writable( tst, "lstat64(buf)", arg2, sizeof(struct stat64) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1770 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1771 | if (!VG_(is_kerror)(res) && res == 0) { |
| 1772 | make_readable( arg2, sizeof(struct stat64) ); |
| 1773 | } |
| 1774 | break; |
| 1775 | # endif |
| 1776 | |
| 1777 | case __NR_mkdir: /* syscall 39 */ |
| 1778 | /* int mkdir(const char *pathname, mode_t mode); */ |
| 1779 | if (VG_(clo_trace_syscalls)) |
| 1780 | VG_(printf)("mkdir ( %p, %d )\n", arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1781 | must_be_readable_asciiz( tst, "mkdir(pathname)", arg1 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1782 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1783 | break; |
| 1784 | |
| 1785 | # if defined(__NR_mmap2) |
| 1786 | case __NR_mmap2: /* syscall 192 */ |
| 1787 | /* My impression is that this is exactly like __NR_mmap |
| 1788 | except that all 6 args are passed in regs, rather than in |
| 1789 | a memory-block. */ |
| 1790 | /* void* mmap(void *start, size_t length, int prot, |
| 1791 | int flags, int fd, off_t offset); |
| 1792 | */ |
| 1793 | { |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1794 | UInt arg6 = tst->m_ebp; |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1795 | if (VG_(clo_trace_syscalls)) |
| 1796 | VG_(printf)("mmap2 ( %p, %d, %d, %d, %d, %d )\n", |
| 1797 | arg1, arg2, arg3, arg4, arg5, arg6 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1798 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1799 | /* !!! shouldn't we also be doing the symtab loading stuff as |
| 1800 | in __NR_mmap ? */ |
| 1801 | if (!VG_(is_kerror)(res)) |
| 1802 | approximate_mmap_permissions( (Addr)res, arg2, arg3 ); |
| 1803 | } |
| 1804 | break; |
| 1805 | # endif |
| 1806 | |
| 1807 | case __NR_mmap: /* syscall 90 */ |
| 1808 | /* void* mmap(void *start, size_t length, int prot, |
| 1809 | int flags, int fd, off_t offset); |
| 1810 | */ |
| 1811 | { |
| 1812 | Bool arg_block_readable |
| 1813 | = VG_(clo_instrument) |
| 1814 | ? VGM_(check_readable)(arg1, 6*sizeof(UInt), NULL) |
| 1815 | : True; |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1816 | must_be_readable( tst, "mmap(args)", arg1, 6*sizeof(UInt) ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1817 | if (arg_block_readable) { |
| 1818 | UInt* arg_block = (UInt*)arg1; |
| 1819 | UInt arg6; |
| 1820 | arg1 = arg_block[0]; |
| 1821 | arg2 = arg_block[1]; |
| 1822 | arg3 = arg_block[2]; |
| 1823 | arg4 = arg_block[3]; |
| 1824 | arg5 = arg_block[4]; |
| 1825 | arg6 = arg_block[5]; |
| 1826 | if (VG_(clo_trace_syscalls)) |
| 1827 | VG_(printf)("mmap ( %p, %d, %d, %d, %d, %d )\n", |
| 1828 | arg1, arg2, arg3, arg4, arg5, arg6 ); |
| 1829 | } |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1830 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1831 | if (arg_block_readable && !VG_(is_kerror)(res)) |
| 1832 | approximate_mmap_permissions( (Addr)res, arg2, arg3 ); |
| 1833 | if (arg_block_readable && !VG_(is_kerror)(res) |
| 1834 | && (arg3 & PROT_EXEC)) { |
| 1835 | /* The client mmap'ed a segment with executable |
| 1836 | permissions. Tell the symbol-table loader, so that it |
| 1837 | has an opportunity to pick up more symbols if this mmap |
| 1838 | was caused by the client loading a new .so via |
| 1839 | dlopen(). This is important for debugging KDE. */ |
| 1840 | VG_(read_symbols)(); |
| 1841 | } |
| 1842 | } |
| 1843 | |
| 1844 | break; |
| 1845 | |
| 1846 | case __NR_mprotect: /* syscall 125 */ |
| 1847 | /* int mprotect(const void *addr, size_t len, int prot); */ |
| 1848 | /* should addr .. addr+len-1 be checked before the call? */ |
| 1849 | if (VG_(clo_trace_syscalls)) |
| 1850 | VG_(printf)("mprotect ( %p, %d, %d )\n", arg1,arg2,arg3); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1851 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1852 | if (!VG_(is_kerror)(res)) |
| 1853 | approximate_mmap_permissions ( arg1, arg2, arg3 ); |
| 1854 | break; |
| 1855 | |
| 1856 | case __NR_munmap: /* syscall 91 */ |
| 1857 | /* int munmap(void *start, size_t length); */ |
| 1858 | /* should start .. start+length-1 be checked before the call? */ |
| 1859 | if (VG_(clo_trace_syscalls)) |
| 1860 | VG_(printf)("munmap ( %p, %d )\n", arg1,arg2); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1861 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1862 | if (!VG_(is_kerror)(res)) { |
| 1863 | /* Mash around start and length so that the area passed to |
| 1864 | make_noaccess() exactly covers an integral number of |
| 1865 | pages. If we don't do that, our idea of addressible |
| 1866 | memory diverges from that of the kernel's, which causes |
| 1867 | the leak detector to crash. */ |
| 1868 | Addr start = arg1; |
| 1869 | Addr length = arg2; |
| 1870 | while ((start % VKI_BYTES_PER_PAGE) > 0) { start--; length++; } |
| 1871 | while (((start+length) % VKI_BYTES_PER_PAGE) > 0) { length++; } |
| 1872 | /* |
| 1873 | VG_(printf)("MUNMAP: correct (%p for %d) to (%p for %d) %s\n", |
| 1874 | arg1, arg2, start, length, (arg1!=start || arg2!=length) |
| 1875 | ? "CHANGE" : ""); |
| 1876 | */ |
| 1877 | make_noaccess( start, length ); |
| 1878 | /* Tell our symbol table machinery about this, so that if |
| 1879 | this happens to be a .so being unloaded, the relevant |
| 1880 | symbols are removed too. */ |
| 1881 | VG_(symtab_notify_munmap) ( start, length ); |
| 1882 | } |
| 1883 | break; |
| 1884 | |
| 1885 | case __NR_nanosleep: /* syscall 162 */ |
| 1886 | /* int nanosleep(const struct timespec *req, struct timespec *rem); */ |
| 1887 | if (VG_(clo_trace_syscalls)) |
| 1888 | VG_(printf)("nanosleep ( %p, %p )\n", arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1889 | must_be_readable ( tst, "nanosleep(req)", arg1, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1890 | sizeof(struct timespec) ); |
| 1891 | if (arg2 != (UInt)NULL) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1892 | must_be_writable ( tst, "nanosleep(rem)", arg2, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1893 | sizeof(struct timespec) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1894 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1895 | /* Somewhat bogus ... is only written by the kernel if |
| 1896 | res == -1 && errno == EINTR. */ |
| 1897 | if (!VG_(is_kerror)(res) && arg2 != (UInt)NULL) |
| 1898 | make_readable ( arg2, sizeof(struct timespec) ); |
| 1899 | break; |
| 1900 | |
| 1901 | case __NR__newselect: /* syscall 142 */ |
| 1902 | /* int select(int n, |
| 1903 | fd_set *readfds, fd_set *writefds, fd_set *exceptfds, |
| 1904 | struct timeval *timeout); |
| 1905 | */ |
| 1906 | if (VG_(clo_trace_syscalls)) |
| 1907 | VG_(printf)("newselect ( %d, %p, %p, %p, %p )\n", |
| 1908 | arg1,arg2,arg3,arg4,arg5); |
| 1909 | if (arg2 != 0) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1910 | must_be_readable( tst, "newselect(readfds)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1911 | arg2, arg1/8 /* __FD_SETSIZE/8 */ ); |
| 1912 | if (arg3 != 0) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1913 | must_be_readable( tst, "newselect(writefds)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1914 | arg3, arg1/8 /* __FD_SETSIZE/8 */ ); |
| 1915 | if (arg4 != 0) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1916 | must_be_readable( tst, "newselect(exceptfds)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1917 | arg4, arg1/8 /* __FD_SETSIZE/8 */ ); |
| 1918 | if (arg5 != 0) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1919 | must_be_readable( tst, "newselect(timeout)", arg5, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1920 | sizeof(struct timeval) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1921 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1922 | break; |
| 1923 | |
| 1924 | case __NR_open: /* syscall 5 */ |
| 1925 | /* int open(const char *pathname, int flags); */ |
| 1926 | if (VG_(clo_trace_syscalls)) |
| 1927 | VG_(printf)("open ( %p(%s), %d ) --> ",arg1,arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1928 | must_be_readable_asciiz( tst, "open(pathname)", arg1 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1929 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1930 | if (VG_(clo_trace_syscalls)) |
| 1931 | VG_(printf)("%d\n",res); |
| 1932 | break; |
| 1933 | |
| 1934 | case __NR_pipe: /* syscall 42 */ |
| 1935 | /* int pipe(int filedes[2]); */ |
| 1936 | if (VG_(clo_trace_syscalls)) |
| 1937 | VG_(printf)("pipe ( %p ) ...\n", arg1); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1938 | must_be_writable( tst, "pipe(filedes)", arg1, 2*sizeof(int) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1939 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1940 | if (!VG_(is_kerror)(res)) |
| 1941 | make_readable ( arg1, 2*sizeof(int) ); |
| 1942 | if (VG_(clo_trace_syscalls) && !VG_(is_kerror)(res)) |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1943 | VG_(printf)("SYSCALL[%d] pipe --> (rd %d, wr %d)\n", |
| 1944 | VG_(getpid)(), |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1945 | ((UInt*)arg1)[0], ((UInt*)arg1)[1] ); |
| 1946 | break; |
| 1947 | |
| 1948 | case __NR_poll: /* syscall 168 */ |
| 1949 | /* struct pollfd { |
| 1950 | int fd; -- file descriptor |
| 1951 | short events; -- requested events |
| 1952 | short revents; -- returned events |
| 1953 | }; |
| 1954 | int poll(struct pollfd *ufds, unsigned int nfds, |
| 1955 | int timeout) |
| 1956 | */ |
| 1957 | if (VG_(clo_trace_syscalls)) |
| 1958 | VG_(printf)("poll ( %d, %d, %d )\n",arg1,arg2,arg3); |
| 1959 | /* In fact some parts of this struct should be readable too. |
| 1960 | This should be fixed properly. */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1961 | must_be_writable( tst, "poll(ufds)", |
| 1962 | arg1, arg2 * sizeof(struct pollfd) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1963 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1964 | if (!VG_(is_kerror)(res) && res > 0) { |
| 1965 | Int i; |
| 1966 | struct pollfd * arr = (struct pollfd *)arg1; |
| 1967 | for (i = 0; i < arg2; i++) |
| 1968 | make_readable( (Addr)(&arr[i].revents), sizeof(Short) ); |
| 1969 | } |
| 1970 | break; |
| 1971 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1972 | case __NR_readlink: /* syscall 85 */ |
| 1973 | /* int readlink(const char *path, char *buf, size_t bufsiz); */ |
| 1974 | if (VG_(clo_trace_syscalls)) |
| 1975 | VG_(printf)("readlink ( %p, %p, %d )\n", arg1,arg2,arg3); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1976 | must_be_readable_asciiz( tst, "readlink(path)", arg1 ); |
| 1977 | must_be_writable ( tst, "readlink(buf)", arg2,arg3 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1978 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1979 | if (!VG_(is_kerror)(res) && res > 0) { |
| 1980 | make_readable ( arg2, res ); |
| 1981 | } |
| 1982 | break; |
| 1983 | |
| 1984 | case __NR_readv: { /* syscall 145 */ |
| 1985 | /* int readv(int fd, const struct iovec * vector, size_t count); */ |
| 1986 | UInt i; |
| 1987 | struct iovec * vec; |
| 1988 | if (VG_(clo_trace_syscalls)) |
| 1989 | VG_(printf)("readv ( %d, %p, %d )\n",arg1,arg2,arg3); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1990 | must_be_readable( tst, "readv(vector)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1991 | arg2, arg3 * sizeof(struct iovec) ); |
| 1992 | /* ToDo: don't do any of the following if the vector is invalid */ |
| 1993 | vec = (struct iovec *)arg2; |
| 1994 | for (i = 0; i < arg3; i++) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1995 | must_be_writable( tst, "readv(vector[...])", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1996 | (UInt)vec[i].iov_base,vec[i].iov_len ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1997 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1998 | if (!VG_(is_kerror)(res) && res > 0) { |
| 1999 | /* res holds the number of bytes read. */ |
| 2000 | for (i = 0; i < arg3; i++) { |
| 2001 | Int nReadThisBuf = vec[i].iov_len; |
| 2002 | if (nReadThisBuf > res) nReadThisBuf = res; |
| 2003 | make_readable( (UInt)vec[i].iov_base, nReadThisBuf ); |
| 2004 | res -= nReadThisBuf; |
| 2005 | if (res < 0) VG_(panic)("vg_wrap_syscall: readv: res < 0"); |
| 2006 | } |
| 2007 | } |
| 2008 | break; |
| 2009 | } |
| 2010 | |
| 2011 | case __NR_rename: /* syscall 38 */ |
| 2012 | /* int rename(const char *oldpath, const char *newpath); */ |
| 2013 | if (VG_(clo_trace_syscalls)) |
| 2014 | VG_(printf)("rename ( %p, %p )\n", arg1, arg2 ); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2015 | must_be_readable_asciiz( tst, "rename(oldpath)", arg1 ); |
| 2016 | must_be_readable_asciiz( tst, "rename(newpath)", arg2 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2017 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2018 | break; |
| 2019 | |
| 2020 | case __NR_rmdir: /* syscall 40 */ |
| 2021 | /* int rmdir(const char *pathname); */ |
| 2022 | if (VG_(clo_trace_syscalls)) |
| 2023 | VG_(printf)("rmdir ( %p )\n", arg1); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2024 | must_be_readable_asciiz( tst, "rmdir(pathname)", arg1 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2025 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2026 | break; |
| 2027 | |
| 2028 | case __NR_sched_setparam: |
| 2029 | case __NR_sched_getparam: |
| 2030 | case __NR_sched_yield: |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2031 | if (VG_(clo_instrument)) { |
| 2032 | VG_(message)(Vg_UserMsg, |
| 2033 | "Warning: noted but unhandled __NR_sched_* syscall (%d).", |
| 2034 | syscallno); |
| 2035 | VG_(message)(Vg_UserMsg, |
| 2036 | " This could cause spurious value errors" |
| 2037 | " to appear."); |
| 2038 | } |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2039 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2040 | break; |
| 2041 | |
| 2042 | case __NR_select: /* syscall 82 */ |
| 2043 | /* struct sel_arg_struct { |
| 2044 | unsigned long n; |
| 2045 | fd_set *inp, *outp, *exp; |
| 2046 | struct timeval *tvp; |
| 2047 | }; |
| 2048 | int old_select(struct sel_arg_struct *arg); |
| 2049 | */ |
| 2050 | { |
| 2051 | Bool arg_block_readable |
| 2052 | = VG_(clo_instrument) |
| 2053 | ? VGM_(check_readable)(arg1, 5*sizeof(UInt), NULL) |
| 2054 | : True; |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2055 | must_be_readable ( tst, "select(args)", arg1, 5*sizeof(UInt) ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2056 | if (arg_block_readable) { |
| 2057 | UInt* arg_struct = (UInt*)arg1; |
| 2058 | arg1 = arg_struct[0]; |
| 2059 | arg2 = arg_struct[1]; |
| 2060 | arg3 = arg_struct[2]; |
| 2061 | arg4 = arg_struct[3]; |
| 2062 | arg5 = arg_struct[4]; |
| 2063 | |
| 2064 | if (VG_(clo_trace_syscalls)) |
| 2065 | VG_(printf)("select ( %d, %p, %p, %p, %p )\n", |
| 2066 | arg1,arg2,arg3,arg4,arg5); |
| 2067 | if (arg2 != (Addr)NULL) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2068 | must_be_readable(tst, "select(readfds)", arg2, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2069 | arg1/8 /* __FD_SETSIZE/8 */ ); |
| 2070 | if (arg3 != (Addr)NULL) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2071 | must_be_readable(tst, "select(writefds)", arg3, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2072 | arg1/8 /* __FD_SETSIZE/8 */ ); |
| 2073 | if (arg4 != (Addr)NULL) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2074 | must_be_readable(tst, "select(exceptfds)", arg4, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2075 | arg1/8 /* __FD_SETSIZE/8 */ ); |
| 2076 | if (arg5 != (Addr)NULL) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2077 | must_be_readable(tst, "select(timeout)", arg5, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2078 | sizeof(struct timeval) ); |
| 2079 | } |
| 2080 | } |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2081 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2082 | break; |
| 2083 | |
| 2084 | case __NR_setitimer: /* syscall 104 */ |
| 2085 | /* setitimer(int which, const struct itimerval *value, |
| 2086 | struct itimerval *ovalue); */ |
| 2087 | if (VG_(clo_trace_syscalls)) |
| 2088 | VG_(printf)("setitimer ( %d, %p, %p )\n", arg1,arg2,arg3); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2089 | must_be_readable(tst, "setitimer(value)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2090 | arg2, sizeof(struct itimerval) ); |
| 2091 | if (arg3 != (Addr)NULL) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2092 | must_be_writable(tst, "setitimer(ovalue)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2093 | arg3, sizeof(struct itimerval)); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2094 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2095 | if (!VG_(is_kerror)(res) && arg3 != (Addr)NULL) { |
| 2096 | make_readable(arg3, sizeof(struct itimerval)); |
| 2097 | } |
| 2098 | break; |
| 2099 | |
| 2100 | # if defined(__NR_setfsgid32) |
| 2101 | case __NR_setfsgid32: /* syscall 216 */ |
| 2102 | /* int setfsgid(uid_t fsgid); */ |
| 2103 | if (VG_(clo_trace_syscalls)) |
| 2104 | VG_(printf)("setfsgid ( %d )\n", arg1); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2105 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2106 | break; |
| 2107 | # endif |
| 2108 | |
| 2109 | # if defined(__NR_setgid32) |
| 2110 | case __NR_setgid32: /* syscall 214 */ |
| 2111 | # endif |
| 2112 | case __NR_setgid: /* syscall 46 */ |
| 2113 | /* int setgid(gid_t gid); */ |
| 2114 | if (VG_(clo_trace_syscalls)) |
| 2115 | VG_(printf)("setgid ( %d )\n", arg1); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2116 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2117 | break; |
| 2118 | |
| 2119 | case __NR_setsid: /* syscall 66 */ |
| 2120 | /* pid_t setsid(void); */ |
| 2121 | if (VG_(clo_trace_syscalls)) |
| 2122 | VG_(printf)("setsid ()\n"); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2123 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2124 | break; |
| 2125 | |
| 2126 | # if defined(__NR_setgroups32) |
| 2127 | case __NR_setgroups32: /* syscall 206 */ |
sewardj | 2f0de32 | 2002-03-24 10:17:25 +0000 | [diff] [blame] | 2128 | # endif |
| 2129 | case __NR_setgroups: /* syscall 81 */ |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2130 | /* int setgroups(size_t size, const gid_t *list); */ |
| 2131 | if (VG_(clo_trace_syscalls)) |
| 2132 | VG_(printf)("setgroups ( %d, %p )\n", arg1, arg2); |
| 2133 | if (arg1 > 0) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2134 | must_be_readable ( tst, "setgroups(list)", arg2, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2135 | arg1 * sizeof(gid_t) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2136 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2137 | break; |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2138 | |
| 2139 | case __NR_setpgid: /* syscall 57 */ |
| 2140 | /* int setpgid(pid_t pid, pid_t pgid); */ |
| 2141 | if (VG_(clo_trace_syscalls)) |
| 2142 | VG_(printf)("setpgid ( %d, %d )\n", arg1, arg2); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2143 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2144 | break; |
| 2145 | |
| 2146 | # if defined(__NR_setregid32) |
| 2147 | case __NR_setregid32: /* syscall 204 */ |
| 2148 | /* int setregid(gid_t rgid, gid_t egid); */ |
| 2149 | if (VG_(clo_trace_syscalls)) |
| 2150 | VG_(printf)("setregid32(?) ( %d, %d )\n", arg1, arg2); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2151 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2152 | break; |
| 2153 | # endif |
| 2154 | |
| 2155 | # if defined(__NR_setresuid32) |
| 2156 | case __NR_setresuid32: /* syscall 208 */ |
| 2157 | /* int setresuid(uid_t ruid, uid_t euid, uid_t suid); */ |
| 2158 | if (VG_(clo_trace_syscalls)) |
| 2159 | VG_(printf)("setresuid32(?) ( %d, %d, %d )\n", arg1, arg2, arg3); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2160 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2161 | break; |
| 2162 | # endif |
| 2163 | |
| 2164 | # if defined(__NR_setreuid32) |
| 2165 | case __NR_setreuid32: /* syscall 203 */ |
| 2166 | # endif |
| 2167 | case __NR_setreuid: /* syscall 70 */ |
| 2168 | /* int setreuid(uid_t ruid, uid_t euid); */ |
| 2169 | if (VG_(clo_trace_syscalls)) |
| 2170 | VG_(printf)("setreuid ( 0x%x, 0x%x )\n", arg1, arg2); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2171 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2172 | break; |
| 2173 | |
| 2174 | case __NR_setrlimit: /* syscall 75 */ |
| 2175 | /* int setrlimit (int resource, const struct rlimit *rlim); */ |
| 2176 | if (VG_(clo_trace_syscalls)) |
| 2177 | VG_(printf)("setrlimit ( %d, %p )\n", arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2178 | must_be_readable( tst, "setrlimit(rlim)", arg2, sizeof(struct rlimit) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2179 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2180 | break; |
| 2181 | |
| 2182 | # if defined(__NR_setuid32) |
| 2183 | case __NR_setuid32: /* syscall 213 */ |
| 2184 | # endif |
| 2185 | case __NR_setuid: /* syscall 23 */ |
| 2186 | /* int setuid(uid_t uid); */ |
| 2187 | if (VG_(clo_trace_syscalls)) |
| 2188 | VG_(printf)("setuid ( %d )\n", arg1); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2189 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2190 | break; |
| 2191 | |
| 2192 | case __NR_socketcall: /* syscall 102 */ |
| 2193 | /* int socketcall(int call, unsigned long *args); */ |
| 2194 | if (VG_(clo_trace_syscalls)) |
| 2195 | VG_(printf)("socketcall ( %d, %p )\n",arg1,arg2); |
| 2196 | switch (arg1 /* request */) { |
| 2197 | |
| 2198 | case SYS_SOCKETPAIR: |
| 2199 | /* int socketpair(int d, int type, int protocol, int sv[2]); */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2200 | must_be_readable( tst, "socketcall.socketpair(args)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2201 | arg2, 4*sizeof(Addr) ); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2202 | must_be_writable( tst, "socketcall.socketpair(sv)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2203 | ((UInt*)arg2)[3], 2*sizeof(int) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2204 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2205 | if (!VG_(is_kerror)(res)) |
| 2206 | make_readable ( ((UInt*)arg2)[3], 2*sizeof(int) ); |
| 2207 | break; |
| 2208 | |
| 2209 | case SYS_SOCKET: |
| 2210 | /* int socket(int domain, int type, int protocol); */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2211 | must_be_readable( tst, "socketcall.socket(args)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2212 | arg2, 3*sizeof(Addr) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2213 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2214 | break; |
| 2215 | |
| 2216 | case SYS_BIND: |
| 2217 | /* int bind(int sockfd, struct sockaddr *my_addr, |
| 2218 | int addrlen); */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2219 | must_be_readable( tst, "socketcall.bind(args)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2220 | arg2, 3*sizeof(Addr) ); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2221 | must_be_readable( tst, "socketcall.bind(my_addr)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2222 | ((UInt*)arg2)[1], ((UInt*)arg2)[2] ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2223 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2224 | break; |
| 2225 | |
| 2226 | case SYS_LISTEN: |
| 2227 | /* int listen(int s, int backlog); */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2228 | must_be_readable( tst, "socketcall.listen(args)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2229 | arg2, 2*sizeof(Addr) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2230 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2231 | break; |
| 2232 | |
| 2233 | case SYS_ACCEPT: { |
| 2234 | /* int accept(int s, struct sockaddr *addr, int *p_addrlen); */ |
| 2235 | Addr addr; |
| 2236 | Addr p_addrlen; |
| 2237 | UInt addrlen_in, addrlen_out; |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2238 | must_be_readable( tst, "socketcall.accept(args)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2239 | arg2, 3*sizeof(Addr) ); |
| 2240 | addr = ((UInt*)arg2)[1]; |
| 2241 | p_addrlen = ((UInt*)arg2)[2]; |
| 2242 | if (p_addrlen != (Addr)NULL) { |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2243 | must_be_readable ( tst, "socketcall.accept(addrlen)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2244 | p_addrlen, sizeof(int) ); |
| 2245 | addrlen_in = safe_dereference( p_addrlen, 0 ); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2246 | must_be_writable ( tst, "socketcall.accept(addr)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2247 | addr, addrlen_in ); |
| 2248 | } |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2249 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2250 | if (!VG_(is_kerror)(res) && res >= 0 && p_addrlen != (Addr)NULL) { |
| 2251 | addrlen_out = safe_dereference( p_addrlen, 0 ); |
| 2252 | if (addrlen_out > 0) |
| 2253 | make_readable( addr, addrlen_out ); |
| 2254 | } |
| 2255 | break; |
| 2256 | } |
| 2257 | |
| 2258 | case SYS_SENDTO: |
| 2259 | /* int sendto(int s, const void *msg, int len, |
| 2260 | unsigned int flags, |
| 2261 | const struct sockaddr *to, int tolen); */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2262 | must_be_readable( tst, "socketcall.sendto(args)", arg2, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2263 | 6*sizeof(Addr) ); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2264 | must_be_readable( tst, "socketcall.sendto(msg)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2265 | ((UInt*)arg2)[1], /* msg */ |
| 2266 | ((UInt*)arg2)[2] /* len */ ); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2267 | must_be_readable( tst, "socketcall.sendto(to)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2268 | ((UInt*)arg2)[4], /* to */ |
| 2269 | ((UInt*)arg2)[5] /* tolen */ ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2270 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2271 | break; |
| 2272 | |
| 2273 | case SYS_SEND: |
| 2274 | /* int send(int s, const void *msg, size_t len, int flags); */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2275 | must_be_readable( tst, "socketcall.send(args)", arg2, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2276 | 4*sizeof(Addr) ); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2277 | must_be_readable( tst, "socketcall.send(msg)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2278 | ((UInt*)arg2)[1], /* msg */ |
| 2279 | ((UInt*)arg2)[2] /* len */ ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2280 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2281 | break; |
| 2282 | |
| 2283 | case SYS_RECVFROM: |
| 2284 | /* int recvfrom(int s, void *buf, int len, unsigned int flags, |
| 2285 | struct sockaddr *from, int *fromlen); */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2286 | must_be_readable( tst, "socketcall.recvfrom(args)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2287 | arg2, 6*sizeof(Addr) ); |
| 2288 | if ( ((UInt*)arg2)[4] /* from */ != 0) { |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2289 | must_be_readable( tst, "socketcall.recvfrom(fromlen)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2290 | ((UInt*)arg2)[5] /* fromlen */, |
| 2291 | sizeof(int) ); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2292 | must_be_writable( tst, "socketcall.recvfrom(from)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2293 | ((UInt*)arg2)[4], /*from*/ |
| 2294 | safe_dereference( (Addr) |
| 2295 | ((UInt*)arg2)[5], 0 ) ); |
| 2296 | } |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2297 | must_be_writable( tst, "socketcall.recvfrom(buf)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2298 | ((UInt*)arg2)[1], /* buf */ |
| 2299 | ((UInt*)arg2)[2] /* len */ ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2300 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2301 | if (!VG_(is_kerror)(res) && res >= 0) { |
| 2302 | make_readable( ((UInt*)arg2)[1], /* buf */ |
| 2303 | ((UInt*)arg2)[2] /* len */ ); |
| 2304 | if ( ((UInt*)arg2)[4] /* from */ != 0) { |
| 2305 | make_readable( |
| 2306 | ((UInt*)arg2)[4], /*from*/ |
| 2307 | safe_dereference( (Addr) ((UInt*)arg2)[5], 0 ) ); |
| 2308 | } |
| 2309 | } |
| 2310 | /* phew! */ |
| 2311 | break; |
| 2312 | |
| 2313 | case SYS_RECV: |
| 2314 | /* int recv(int s, void *buf, int len, unsigned int flags); */ |
| 2315 | /* man 2 recv says: |
| 2316 | The recv call is normally used only on a connected socket |
| 2317 | (see connect(2)) and is identical to recvfrom with a NULL |
| 2318 | from parameter. |
| 2319 | */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2320 | must_be_readable( tst, "socketcall.recv(args)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2321 | arg2, 4*sizeof(Addr) ); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2322 | must_be_writable( tst, "socketcall.recv(buf)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2323 | ((UInt*)arg2)[1], /* buf */ |
| 2324 | ((UInt*)arg2)[2] /* len */ ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2325 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2326 | if (!VG_(is_kerror)(res) && res >= 0 |
| 2327 | && ((UInt*)arg2)[1] != (UInt)NULL) { |
| 2328 | make_readable( ((UInt*)arg2)[1], /* buf */ |
| 2329 | ((UInt*)arg2)[2] /* len */ ); |
| 2330 | } |
| 2331 | break; |
| 2332 | |
| 2333 | case SYS_CONNECT: { |
| 2334 | struct sockaddr *sa; |
| 2335 | /* int connect(int sockfd, |
| 2336 | struct sockaddr *serv_addr, int addrlen ); */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2337 | must_be_readable( tst, "socketcall.connect(args)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2338 | arg2, 3*sizeof(Addr) ); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2339 | must_be_readable( tst, "socketcall.connect(serv_addr.sa_family)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2340 | ((UInt*)arg2)[1], /* serv_addr */ |
| 2341 | sizeof (sa_family_t)); |
| 2342 | sa = (struct sockaddr *) (((UInt*)arg2)[1]); |
| 2343 | if (sa->sa_family == AF_UNIX) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2344 | must_be_readable_asciiz( tst, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2345 | "socketcall.connect(serv_addr.sun_path)", |
| 2346 | (UInt) ((struct sockaddr_un *) sa)->sun_path); |
| 2347 | /* XXX There probably should be more cases here since not |
| 2348 | all of the struct sockaddr_XXX must be initialized. But |
| 2349 | wait until something pops up. */ |
| 2350 | else |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2351 | must_be_readable( tst, "socketcall.connect(serv_addr)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2352 | ((UInt*)arg2)[1], /* serv_addr */ |
| 2353 | ((UInt*)arg2)[2] /* addrlen */ ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2354 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2355 | break; |
| 2356 | } |
| 2357 | |
| 2358 | case SYS_SETSOCKOPT: |
| 2359 | /* int setsockopt(int s, int level, int optname, |
| 2360 | const void *optval, int optlen); */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2361 | must_be_readable( tst, "socketcall.setsockopt(args)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2362 | arg2, 5*sizeof(Addr) ); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2363 | must_be_readable( tst, "socketcall.setsockopt(optval)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2364 | ((UInt*)arg2)[3], /* optval */ |
| 2365 | ((UInt*)arg2)[4] /* optlen */ ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2366 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2367 | break; |
| 2368 | |
| 2369 | case SYS_GETSOCKOPT: |
| 2370 | /* int setsockopt(int s, int level, int optname, |
| 2371 | void *optval, socklen_t *optlen); */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2372 | must_be_readable( tst, "socketcall.getsockopt(args)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2373 | arg2, 5*sizeof(Addr) ); |
| 2374 | { |
| 2375 | Addr optval_p = ((UInt*)arg2)[3]; |
| 2376 | Addr optlen_p = ((UInt*)arg2)[4]; |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2377 | /* vg_assert(sizeof(socklen_t) == sizeof(UInt)); */ |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2378 | UInt optlen_after; |
| 2379 | UInt optlen = safe_dereference ( optlen_p, 0 ); |
| 2380 | if (optlen > 0) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2381 | must_be_writable( tst, "socketcall.getsockopt(optval)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2382 | optval_p, optlen ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2383 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2384 | optlen_after = safe_dereference ( optlen_p, 0 ); |
| 2385 | if (!VG_(is_kerror)(res) && optlen > 0 && optlen_after > 0) |
| 2386 | make_readable( optval_p, optlen_after ); |
| 2387 | } |
| 2388 | break; |
| 2389 | |
| 2390 | case SYS_GETSOCKNAME: |
| 2391 | /* int getsockname(int s, struct sockaddr* name, |
| 2392 | int* namelen) */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2393 | must_be_readable( tst, "socketcall.getsockname(args)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2394 | arg2, 3*sizeof(Addr) ); |
| 2395 | { |
| 2396 | UInt namelen = safe_dereference( (Addr) ((UInt*)arg2)[2], 0); |
| 2397 | if (namelen > 0) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2398 | must_be_writable( tst, "socketcall.getsockname(name)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2399 | ((UInt*)arg2)[1], namelen ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2400 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2401 | if (!VG_(is_kerror)(res)) { |
| 2402 | namelen = safe_dereference( (Addr) ((UInt*)arg2)[2], 0); |
| 2403 | if (namelen > 0 |
| 2404 | && ((UInt*)arg2)[1] != (UInt)NULL) |
| 2405 | make_readable( ((UInt*)arg2)[1], namelen ); |
| 2406 | } |
| 2407 | } |
| 2408 | break; |
| 2409 | |
| 2410 | case SYS_GETPEERNAME: |
| 2411 | /* int getpeername(int s, struct sockaddr* name, |
| 2412 | int* namelen) */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2413 | must_be_readable( tst, "socketcall.getpeername(args)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2414 | arg2, 3*sizeof(Addr) ); |
| 2415 | { |
| 2416 | UInt namelen = safe_dereference( (Addr) ((UInt*)arg2)[2], 0); |
| 2417 | if (namelen > 0) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2418 | must_be_writable( tst, "socketcall.getpeername(name)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2419 | ((UInt*)arg2)[1], namelen ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2420 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2421 | if (!VG_(is_kerror)(res)) { |
| 2422 | namelen = safe_dereference( (Addr) ((UInt*)arg2)[2], 0); |
| 2423 | if (namelen > 0 |
| 2424 | && ((UInt*)arg2)[1] != (UInt)NULL) |
| 2425 | make_readable( ((UInt*)arg2)[1], namelen ); |
| 2426 | } |
| 2427 | } |
| 2428 | break; |
| 2429 | |
| 2430 | case SYS_SHUTDOWN: |
| 2431 | /* int shutdown(int s, int how); */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2432 | must_be_readable( tst, "socketcall.shutdown(args)", |
| 2433 | arg2, 2*sizeof(Addr) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2434 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2435 | break; |
| 2436 | |
| 2437 | case SYS_SENDMSG: |
| 2438 | { |
| 2439 | /* int sendmsg(int s, const struct msghdr *msg, int flags); */ |
| 2440 | |
| 2441 | /* this causes warnings, and I don't get why. glibc bug? |
| 2442 | * (after all it's glibc providing the arguments array) |
| 2443 | must_be_readable( "socketcall.sendmsg(args)", |
| 2444 | arg2, 3*sizeof(Addr) ); |
| 2445 | */ |
| 2446 | |
| 2447 | struct msghdr *msg = (struct msghdr *)((UInt *)arg2)[ 1 ]; |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2448 | msghdr_foreachfield ( tst, msg, must_be_readable_sendmsg ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2449 | |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2450 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2451 | break; |
| 2452 | } |
| 2453 | |
| 2454 | case SYS_RECVMSG: |
| 2455 | { |
| 2456 | /* int recvmsg(int s, struct msghdr *msg, int flags); */ |
| 2457 | |
| 2458 | /* this causes warnings, and I don't get why. glibc bug? |
| 2459 | * (after all it's glibc providing the arguments array) |
| 2460 | must_be_readable( "socketcall.recvmsg(args)", |
| 2461 | arg2, 3*sizeof(Addr) ); |
| 2462 | */ |
| 2463 | |
| 2464 | struct msghdr *msg = (struct msghdr *)((UInt *)arg2)[ 1 ]; |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2465 | msghdr_foreachfield ( tst, msg, must_be_writable_recvmsg ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2466 | |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2467 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2468 | |
| 2469 | if ( !VG_(is_kerror)( res ) ) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2470 | msghdr_foreachfield( tst, msg, make_readable_recvmsg ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2471 | |
| 2472 | break; |
| 2473 | } |
| 2474 | |
| 2475 | default: |
| 2476 | VG_(message)(Vg_DebugMsg,"FATAL: unhandled socketcall 0x%x",arg1); |
| 2477 | VG_(panic)("... bye!\n"); |
| 2478 | break; /*NOTREACHED*/ |
| 2479 | } |
| 2480 | break; |
| 2481 | |
| 2482 | case __NR_stat: /* syscall 106 */ |
| 2483 | /* int stat(const char *file_name, struct stat *buf); */ |
| 2484 | if (VG_(clo_trace_syscalls)) |
| 2485 | VG_(printf)("stat ( %p, %p )\n",arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2486 | must_be_readable_asciiz( tst, "stat(file_name)", arg1 ); |
| 2487 | must_be_writable( tst, "stat(buf)", arg2, sizeof(struct stat) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2488 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2489 | if (!VG_(is_kerror)(res)) |
| 2490 | make_readable( arg2, sizeof(struct stat) ); |
| 2491 | break; |
| 2492 | |
| 2493 | case __NR_statfs: /* syscall 99 */ |
| 2494 | /* int statfs(const char *path, struct statfs *buf); */ |
| 2495 | if (VG_(clo_trace_syscalls)) |
| 2496 | VG_(printf)("statfs ( %p, %p )\n",arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2497 | must_be_readable_asciiz( tst, "statfs(path)", arg1 ); |
| 2498 | must_be_writable( tst, "stat(buf)", arg2, sizeof(struct statfs) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2499 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2500 | if (!VG_(is_kerror)(res)) |
| 2501 | make_readable( arg2, sizeof(struct statfs) ); |
| 2502 | break; |
| 2503 | |
| 2504 | case __NR_symlink: /* syscall 83 */ |
| 2505 | /* int symlink(const char *oldpath, const char *newpath); */ |
| 2506 | if (VG_(clo_trace_syscalls)) |
| 2507 | VG_(printf)("symlink ( %p, %p )\n",arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2508 | must_be_readable_asciiz( tst, "symlink(oldpath)", arg1 ); |
| 2509 | must_be_readable_asciiz( tst, "symlink(newpath)", arg2 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2510 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2511 | break; |
| 2512 | |
| 2513 | # if defined(__NR_stat64) |
| 2514 | case __NR_stat64: /* syscall 195 */ |
| 2515 | /* int stat64(const char *file_name, struct stat64 *buf); */ |
| 2516 | if (VG_(clo_trace_syscalls)) |
| 2517 | VG_(printf)("stat64 ( %p, %p )\n",arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2518 | must_be_readable_asciiz( tst, "stat64(file_name)", arg1 ); |
| 2519 | must_be_writable( tst, "stat64(buf)", arg2, sizeof(struct stat64) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2520 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2521 | if (!VG_(is_kerror)(res)) |
| 2522 | make_readable( arg2, sizeof(struct stat64) ); |
| 2523 | break; |
| 2524 | # endif |
| 2525 | |
| 2526 | # if defined(__NR_fstat64) |
| 2527 | case __NR_fstat64: /* syscall 197 */ |
| 2528 | /* int fstat64(int filedes, struct stat64 *buf); */ |
| 2529 | if (VG_(clo_trace_syscalls)) |
| 2530 | VG_(printf)("fstat64 ( %d, %p )\n",arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2531 | must_be_writable( tst, "fstat64(buf)", arg2, sizeof(struct stat64) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2532 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2533 | if (!VG_(is_kerror)(res)) |
| 2534 | make_readable( arg2, sizeof(struct stat64) ); |
| 2535 | break; |
| 2536 | # endif |
| 2537 | |
| 2538 | case __NR_sysinfo: /* syscall 116 */ |
| 2539 | /* int sysinfo(struct sysinfo *info); */ |
| 2540 | if (VG_(clo_trace_syscalls)) |
| 2541 | VG_(printf)("sysinfo ( %p )\n",arg1); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2542 | must_be_writable( tst, "sysinfo(info)", arg1, sizeof(struct sysinfo) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2543 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2544 | if (!VG_(is_kerror)(res)) |
| 2545 | make_readable( arg1, sizeof(struct sysinfo) ); |
| 2546 | break; |
| 2547 | |
| 2548 | case __NR_time: /* syscall 13 */ |
| 2549 | /* time_t time(time_t *t); */ |
| 2550 | if (VG_(clo_trace_syscalls)) |
| 2551 | VG_(printf)("time ( %p )\n",arg1); |
| 2552 | if (arg1 != (UInt)NULL) { |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2553 | must_be_writable( tst, "time", arg1, sizeof(time_t) ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2554 | } |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2555 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2556 | if (!VG_(is_kerror)(res) && arg1 != (UInt)NULL) { |
| 2557 | make_readable( arg1, sizeof(time_t) ); |
| 2558 | } |
| 2559 | break; |
| 2560 | |
| 2561 | case __NR_times: /* syscall 43 */ |
| 2562 | /* clock_t times(struct tms *buf); */ |
| 2563 | if (VG_(clo_trace_syscalls)) |
| 2564 | VG_(printf)("times ( %p )\n",arg1); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2565 | must_be_writable( tst, "times(buf)", arg1, sizeof(struct tms) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2566 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2567 | if (!VG_(is_kerror)(res) && arg1 != (UInt)NULL) { |
| 2568 | make_readable( arg1, sizeof(struct tms) ); |
| 2569 | } |
| 2570 | break; |
| 2571 | |
| 2572 | case __NR_truncate: /* syscall 92 */ |
| 2573 | /* int truncate(const char *path, size_t length); */ |
| 2574 | if (VG_(clo_trace_syscalls)) |
| 2575 | VG_(printf)("truncate ( %p, %d )\n", arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2576 | must_be_readable_asciiz( tst, "truncate(path)", arg1 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2577 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2578 | break; |
| 2579 | |
| 2580 | case __NR_umask: /* syscall 60 */ |
| 2581 | /* mode_t umask(mode_t mask); */ |
| 2582 | if (VG_(clo_trace_syscalls)) |
| 2583 | VG_(printf)("umask ( %d )\n", arg1); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2584 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2585 | break; |
| 2586 | |
| 2587 | case __NR_unlink: /* syscall 10 */ |
| 2588 | /* int unlink(const char *pathname) */ |
| 2589 | if (VG_(clo_trace_syscalls)) |
| 2590 | VG_(printf)("ulink ( %p )\n",arg1); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2591 | must_be_readable_asciiz( tst, "unlink(pathname)", arg1 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2592 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2593 | break; |
| 2594 | |
| 2595 | case __NR_uname: /* syscall 122 */ |
| 2596 | /* int uname(struct utsname *buf); */ |
| 2597 | if (VG_(clo_trace_syscalls)) |
| 2598 | VG_(printf)("uname ( %p )\n",arg1); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2599 | must_be_writable( tst, "uname(buf)", arg1, sizeof(struct utsname) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2600 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2601 | if (!VG_(is_kerror)(res) && arg1 != (UInt)NULL) { |
| 2602 | make_readable( arg1, sizeof(struct utsname) ); |
| 2603 | } |
| 2604 | break; |
| 2605 | |
| 2606 | case __NR_utime: /* syscall 30 */ |
| 2607 | /* int utime(const char *filename, struct utimbuf *buf); */ |
| 2608 | if (VG_(clo_trace_syscalls)) |
| 2609 | VG_(printf)("utime ( %p, %p )\n", arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2610 | must_be_readable_asciiz( tst, "utime(filename)", arg1 ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2611 | if (arg2 != (UInt)NULL) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2612 | must_be_readable( tst, "utime(buf)", arg2, |
| 2613 | sizeof(struct utimbuf) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2614 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2615 | break; |
| 2616 | |
| 2617 | case __NR_wait4: /* syscall 114 */ |
| 2618 | /* pid_t wait4(pid_t pid, int *status, int options, |
| 2619 | struct rusage *rusage) */ |
| 2620 | if (VG_(clo_trace_syscalls)) |
| 2621 | VG_(printf)("wait4 ( %d, %p, %d, %p )\n", |
| 2622 | arg1,arg2,arg3,arg4); |
| 2623 | if (arg2 != (Addr)NULL) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2624 | must_be_writable( tst, "wait4(status)", arg2, sizeof(int) ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2625 | if (arg4 != (Addr)NULL) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2626 | must_be_writable( tst, "wait4(rusage)", arg4, |
| 2627 | sizeof(struct rusage) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2628 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2629 | if (!VG_(is_kerror)(res)) { |
| 2630 | if (arg2 != (Addr)NULL) |
| 2631 | make_readable( arg2, sizeof(int) ); |
| 2632 | if (arg4 != (Addr)NULL) |
| 2633 | make_readable( arg4, sizeof(struct rusage) ); |
| 2634 | } |
| 2635 | break; |
| 2636 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2637 | case __NR_writev: { /* syscall 146 */ |
| 2638 | /* int writev(int fd, const struct iovec * vector, size_t count); */ |
| 2639 | UInt i; |
| 2640 | struct iovec * vec; |
| 2641 | if (VG_(clo_trace_syscalls)) |
| 2642 | VG_(printf)("writev ( %d, %p, %d )\n",arg1,arg2,arg3); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2643 | must_be_readable( tst, "writev(vector)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2644 | arg2, arg3 * sizeof(struct iovec) ); |
| 2645 | /* ToDo: don't do any of the following if the vector is invalid */ |
| 2646 | vec = (struct iovec *)arg2; |
| 2647 | for (i = 0; i < arg3; i++) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2648 | must_be_readable( tst, "writev(vector[...])", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2649 | (UInt)vec[i].iov_base,vec[i].iov_len ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2650 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2651 | break; |
| 2652 | } |
| 2653 | |
| 2654 | /*-------------------------- SIGNALS --------------------------*/ |
| 2655 | |
| 2656 | /* Normally set to 1, so that Valgrind's signal-simulation machinery |
| 2657 | is engaged. Sometimes useful to disable (set to 0), for |
| 2658 | debugging purposes, to make clients more deterministic. */ |
| 2659 | # define SIGNAL_SIMULATION 1 |
| 2660 | |
| 2661 | case __NR_rt_sigaction: |
| 2662 | case __NR_sigaction: |
| 2663 | /* int sigaction(int signum, struct k_sigaction *act, |
| 2664 | struct k_sigaction *oldact); */ |
| 2665 | if (VG_(clo_trace_syscalls)) |
| 2666 | VG_(printf)("sigaction ( %d, %p, %p )\n",arg1,arg2,arg3); |
| 2667 | if (arg2 != (UInt)NULL) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2668 | must_be_readable( tst, "sigaction(act)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2669 | arg2, sizeof(vki_ksigaction)); |
| 2670 | if (arg3 != (UInt)NULL) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2671 | must_be_writable( tst, "sigaction(oldact)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2672 | arg3, sizeof(vki_ksigaction)); |
| 2673 | /* We do this one ourselves! */ |
| 2674 | # if SIGNAL_SIMULATION |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2675 | VG_(do__NR_sigaction)(tid); |
| 2676 | res = tst->m_eax; |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2677 | # else |
| 2678 | /* debugging signals; when we don't handle them. */ |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2679 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2680 | # endif |
| 2681 | if (!VG_(is_kerror)(res) && res == 0 && arg3 != (UInt)NULL) |
| 2682 | make_readable( arg3, sizeof(vki_ksigaction)); |
| 2683 | break; |
| 2684 | |
| 2685 | case __NR_rt_sigprocmask: |
| 2686 | case __NR_sigprocmask: |
| 2687 | /* int sigprocmask(int how, k_sigset_t *set, |
| 2688 | k_sigset_t *oldset); */ |
| 2689 | if (VG_(clo_trace_syscalls)) |
| 2690 | VG_(printf)("sigprocmask ( %d, %p, %p )\n",arg1,arg2,arg3); |
| 2691 | if (arg2 != (UInt)NULL) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2692 | must_be_readable( tst, "sigprocmask(set)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2693 | arg2, sizeof(vki_ksigset_t)); |
| 2694 | if (arg3 != (UInt)NULL) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2695 | must_be_writable( tst, "sigprocmask(oldset)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2696 | arg3, sizeof(vki_ksigset_t)); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2697 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2698 | if (!VG_(is_kerror)(res) && res == 0 && arg3 != (UInt)NULL) |
| 2699 | make_readable( arg3, sizeof(vki_ksigset_t)); |
| 2700 | # if SIGNAL_SIMULATION |
| 2701 | /* For the reason why both the kernel and Valgrind process |
| 2702 | sigprocmask, see the detailed comment at |
| 2703 | vg_do__NR_sigprocmask(). */ |
| 2704 | VG_(do__NR_sigprocmask) ( arg1 /*how*/, (vki_ksigset_t*) arg2 ); |
| 2705 | # endif |
| 2706 | break; |
| 2707 | |
| 2708 | default: |
| 2709 | VG_(message) |
| 2710 | (Vg_DebugMsg,"FATAL: unhandled syscall: %d",syscallno); |
| 2711 | VG_(message) |
| 2712 | (Vg_DebugMsg,"Do not panic. You may be able to fix this easily."); |
| 2713 | VG_(message) |
| 2714 | (Vg_DebugMsg,"Read the file README_MISSING_SYSCALL_OR_IOCTL."); |
| 2715 | VG_(unimplemented)("no wrapper for the above system call"); |
| 2716 | vg_assert(3+3 == 7); |
| 2717 | break; /*NOTREACHED*/ |
| 2718 | } |
| 2719 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2720 | /* { void zzzmemscan(void); zzzmemscan(); } */ |
| 2721 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2722 | if (! VG_(first_and_last_secondaries_look_plausible)) |
| 2723 | sane_before_call = False; |
| 2724 | |
| 2725 | if (sane_before_call && (!sane_after_call)) { |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2726 | VG_(message)(Vg_DebugMsg, "perform_assumed_nonblocking_syscall: "); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2727 | VG_(message)(Vg_DebugMsg, |
| 2728 | "probable sanity check failure for syscall number %d\n", |
| 2729 | syscallno ); |
| 2730 | VG_(panic)("aborting due to the above ... bye!"); |
| 2731 | } |
| 2732 | |
| 2733 | VGP_POPCC; |
| 2734 | } |
| 2735 | |
| 2736 | |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2737 | |
| 2738 | /* Perform pre- and post- actions for a blocking syscall, but do not |
| 2739 | do the syscall itself. If res is NULL, the pre-syscall actions are |
| 2740 | to be performed. If res is non-NULL, the post-syscall actions are |
| 2741 | to be performed, and *res is assumed to hold the result of the |
| 2742 | syscall. This slightly strange scheme makes it impossible to |
| 2743 | mistakenly use the value of *res in the pre-syscall actions. |
| 2744 | |
| 2745 | This doesn't actually do the syscall itself, it is important to |
| 2746 | observe. |
| 2747 | |
| 2748 | Because %eax is used both for the syscall number before the call |
| 2749 | and the result value afterwards, we can't reliably use it to get |
| 2750 | the syscall number. So the caller has to pass it explicitly. |
| 2751 | */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2752 | void VG_(check_known_blocking_syscall) ( ThreadId tid, |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2753 | Int syscallno, |
| 2754 | Int* /*IN*/ res ) |
| 2755 | { |
| 2756 | Bool sane_before_post = True; |
| 2757 | Bool sane_after_post = True; |
| 2758 | ThreadState* tst = VG_(get_thread_state)( tid ); |
| 2759 | UInt arg1 = tst->m_ebx; |
| 2760 | UInt arg2 = tst->m_ecx; |
| 2761 | UInt arg3 = tst->m_edx; |
| 2762 | /* |
| 2763 | UInt arg4 = tst->m_esi; |
| 2764 | UInt arg5 = tst->m_edi; |
| 2765 | */ |
| 2766 | VGP_PUSHCC(VgpSyscall); |
| 2767 | |
| 2768 | if (res != NULL |
| 2769 | && ! VG_(first_and_last_secondaries_look_plausible)) |
| 2770 | sane_before_post = False; |
| 2771 | |
| 2772 | switch (syscallno) { |
| 2773 | |
| 2774 | case __NR_read: /* syscall 3 */ |
| 2775 | /* size_t read(int fd, void *buf, size_t count); */ |
| 2776 | if (res == NULL) { |
| 2777 | /* PRE */ |
| 2778 | if (VG_(clo_trace_syscalls)) |
| 2779 | VG_(printf)( |
| 2780 | "SYSCALL--PRE[%d,%d] read ( %d, %p, %d )\n", |
| 2781 | VG_(getpid)(), tid, |
| 2782 | arg1, arg2, arg3); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2783 | must_be_writable( tst, "read(buf)", arg2, arg3 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2784 | } else { |
| 2785 | /* POST */ |
| 2786 | if (VG_(clo_trace_syscalls)) |
| 2787 | VG_(printf)( |
| 2788 | "SYSCALL-POST[%d,%d] read ( %d, %p, %d ) --> %d\n", |
| 2789 | VG_(getpid)(), tid, |
| 2790 | arg1, arg2, arg3, *res); |
| 2791 | if (!VG_(is_kerror)(*res) && *res > 0) { |
| 2792 | make_readable( arg2, *res ); |
| 2793 | } |
| 2794 | } |
| 2795 | break; |
| 2796 | |
| 2797 | case __NR_write: /* syscall 4 */ |
| 2798 | /* size_t write(int fd, const void *buf, size_t count); */ |
| 2799 | if (res == NULL) { |
| 2800 | /* PRE */ |
| 2801 | if (VG_(clo_trace_syscalls)) |
| 2802 | VG_(printf)( |
| 2803 | "SYSCALL--PRE[%d,%d] write ( %d, %p, %d )\n", |
| 2804 | VG_(getpid)(), tid, |
| 2805 | arg1, arg2, arg3); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2806 | must_be_readable( tst, "write(buf)", arg2, arg3 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2807 | } else { |
| 2808 | /* POST */ |
| 2809 | if (VG_(clo_trace_syscalls)) |
| 2810 | VG_(printf)( |
| 2811 | "SYSCALL-POST[%d,%d] write ( %d, %p, %d ) --> %d\n", |
| 2812 | VG_(getpid)(), tid, |
| 2813 | arg1, arg2, arg3, *res); |
| 2814 | } |
| 2815 | break; |
| 2816 | |
| 2817 | default: |
| 2818 | VG_(printf)("check_known_blocking_syscall: unexpected %d\n", |
| 2819 | syscallno); |
| 2820 | VG_(panic)("check_known_blocking_syscall"); |
| 2821 | /*NOTREACHED*/ |
| 2822 | break; |
| 2823 | } |
| 2824 | |
| 2825 | if (res != NULL) { /* only check after syscall */ |
| 2826 | if (! VG_(first_and_last_secondaries_look_plausible)) |
| 2827 | sane_after_post = False; |
| 2828 | |
| 2829 | if (sane_before_post && (!sane_after_post)) { |
| 2830 | VG_(message)(Vg_DebugMsg, "perform_known_blocking_syscall: "); |
| 2831 | VG_(message)(Vg_DebugMsg, |
| 2832 | "probable sanity check failure for syscall number %d\n", |
| 2833 | syscallno ); |
| 2834 | VG_(panic)("aborting due to the above ... bye!"); |
| 2835 | } |
| 2836 | } |
| 2837 | |
| 2838 | VGP_POPCC; |
| 2839 | } |
| 2840 | |
| 2841 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2842 | /*--------------------------------------------------------------------*/ |
| 2843 | /*--- end vg_syscall_mem.c ---*/ |
| 2844 | /*--------------------------------------------------------------------*/ |