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 | |
| 483 | # if defined(__NR_setfsgid) |
| 484 | case __NR_setfsgid: /* syscall 139 */ |
| 485 | /* int setfsgid(gid_t gid); */ |
| 486 | if (VG_(clo_trace_syscalls)) |
| 487 | VG_(printf)("setfsgid ( %d )\n", arg1); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 488 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 489 | break; |
| 490 | # endif |
| 491 | |
| 492 | # if defined(__NR_setregid) |
| 493 | case __NR_setregid: /* syscall 71 */ |
| 494 | /* int setregid(gid_t rgid, gid_t egid); */ |
| 495 | if (VG_(clo_trace_syscalls)) |
| 496 | VG_(printf)("setregid ( %d, %d )\n", arg1, arg2); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 497 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 498 | break; |
| 499 | # endif |
| 500 | |
| 501 | # if defined(__NR_setresuid) |
| 502 | case __NR_setresuid: /* syscall 164 */ |
| 503 | /* int setresuid(uid_t ruid, uid_t euid, uid_t suid); */ |
| 504 | if (VG_(clo_trace_syscalls)) |
| 505 | VG_(printf)("setresuid ( %d, %d, %d )\n", arg1, arg2, arg3); |
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_setfsuid) |
| 511 | case __NR_setfsuid: /* syscall 138 */ |
| 512 | /* int setfsuid(uid_t uid); */ |
| 513 | if (VG_(clo_trace_syscalls)) |
| 514 | VG_(printf)("setfsuid ( %d )\n", arg1); |
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 | /* !!!!!!!!!! New, untested syscalls, 8 Mar 02 !!!!!!!!!!! */ |
| 520 | |
| 521 | # if defined(__NR_sendfile) |
| 522 | case __NR_sendfile: /* syscall 187 */ |
| 523 | /* ssize_t sendfile(int out_fd, int in_fd, off_t *offset, |
| 524 | size_t count) */ |
| 525 | if (VG_(clo_trace_syscalls)) |
| 526 | VG_(printf)("sendfile ( %d, %d, %p, %d )\n",arg1,arg2,arg3,arg4); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 527 | must_be_writable( tst, "sendfile(offset)", arg3, sizeof(off_t) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 528 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 529 | if (!VG_(is_kerror)(res)) { |
| 530 | make_readable( arg3, sizeof( off_t ) ); |
| 531 | } |
| 532 | break; |
| 533 | # endif |
| 534 | |
| 535 | /* !!!!!!!!!! New, untested syscalls, 7 Mar 02 !!!!!!!!!!! */ |
| 536 | |
| 537 | # if defined(__NR_pwrite) |
| 538 | case __NR_pwrite: /* syscall 181 */ |
| 539 | /* ssize_t pwrite (int fd, const void *buf, size_t nbytes, |
| 540 | off_t offset); */ |
| 541 | if (VG_(clo_trace_syscalls)) |
| 542 | VG_(printf)("pwrite ( %d, %p, %d, %d )\n", arg1, arg2, arg3, arg4); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 543 | must_be_readable( tst, "pwrite(buf)", arg2, arg3 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 544 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 545 | break; |
| 546 | # endif |
| 547 | |
| 548 | /* !!!!!!!!!! New, untested syscalls, 6 Mar 02 !!!!!!!!!!! */ |
| 549 | |
| 550 | case __NR_sync: /* syscall 36 */ |
| 551 | /* int sync(); */ |
| 552 | if (VG_(clo_trace_syscalls)) |
| 553 | VG_(printf)("sync ( )\n"); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 554 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 555 | break; |
| 556 | |
| 557 | case __NR_fstatfs: /* syscall 100 */ |
| 558 | /* int fstatfs(int fd, struct statfs *buf); */ |
| 559 | if (VG_(clo_trace_syscalls)) |
| 560 | VG_(printf)("fstatfs ( %d, %p )\n",arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 561 | must_be_writable( tst, "stat(buf)", arg2, sizeof(struct statfs) ); |
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 | if (!VG_(is_kerror)(res)) |
| 564 | make_readable( arg2, sizeof(struct statfs) ); |
| 565 | break; |
| 566 | |
| 567 | /* !!!!!!!!!! New, untested syscalls, 4 Mar 02 !!!!!!!!!!! */ |
| 568 | |
| 569 | case __NR_pause: /* syscall 29 */ |
| 570 | /* int pause(void); */ |
| 571 | if (VG_(clo_trace_syscalls)) |
| 572 | VG_(printf)("pause ( )\n"); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 573 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 574 | break; |
| 575 | |
| 576 | case __NR_getsid: /* syscall 147 */ |
| 577 | /* pid_t getsid(pid_t pid); */ |
| 578 | if (VG_(clo_trace_syscalls)) |
| 579 | VG_(printf)("getsid ( %d )\n", arg1); |
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 | break; |
| 582 | |
| 583 | # if defined(__NR_pread) |
| 584 | case __NR_pread: /* syscall 180 */ |
| 585 | /* ssize_t pread(int fd, void *buf, size_t count, off_t offset); */ |
| 586 | if (VG_(clo_trace_syscalls)) |
| 587 | VG_(printf)("pread ( %d, %p, %d, %d ) ...\n",arg1,arg2,arg3,arg4); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 588 | must_be_writable( tst, "pread(buf)", arg2, arg3 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 589 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 590 | if (VG_(clo_trace_syscalls)) |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 591 | VG_(printf)("SYSCALL[%d] pread ( %d, %p, %d, %d ) --> %d\n", |
| 592 | VG_(getpid)(), |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 593 | arg1, arg2, arg3, arg4, res); |
| 594 | if (!VG_(is_kerror)(res) && res > 0) { |
| 595 | make_readable( arg2, res ); |
| 596 | } |
| 597 | break; |
| 598 | # endif |
| 599 | |
| 600 | /* !!!!!!!!!! New, untested syscalls, 27 Feb 02 !!!!!!!!!! */ |
| 601 | |
| 602 | case __NR_mknod: /* syscall 14 */ |
| 603 | /* int mknod(const char *pathname, mode_t mode, dev_t dev); */ |
| 604 | if (VG_(clo_trace_syscalls)) |
| 605 | VG_(printf)("mknod ( %p, 0x%x, 0x%x )\n", arg1, arg2, arg3 ); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 606 | must_be_readable_asciiz( tst, "mknod(pathname)", arg1 ); |
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 | break; |
| 609 | |
| 610 | case __NR_flock: /* syscall 143 */ |
| 611 | /* int flock(int fd, int operation); */ |
| 612 | if (VG_(clo_trace_syscalls)) |
| 613 | VG_(printf)("flock ( %d, %d )\n", arg1, arg2 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 614 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 615 | break; |
| 616 | |
| 617 | # if defined(__NR_rt_sigsuspend) |
| 618 | /* Viewed with great suspicion by me, but, hey, let's do it |
| 619 | anyway ... */ |
| 620 | case __NR_rt_sigsuspend: /* syscall 179 */ |
| 621 | /* int sigsuspend(const sigset_t *mask); */ |
| 622 | if (VG_(clo_trace_syscalls)) |
| 623 | VG_(printf)("sigsuspend ( %p )\n", arg1 ); |
| 624 | if (arg1 != (Addr)NULL) { |
| 625 | /* above NULL test is paranoia */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 626 | must_be_readable( tst, "sigsuspend(mask)", arg1, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 627 | sizeof(vki_ksigset_t) ); |
| 628 | } |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 629 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 630 | break; |
| 631 | # endif |
| 632 | |
| 633 | case __NR_init_module: /* syscall 128 */ |
| 634 | /* int init_module(const char *name, struct module *image); */ |
| 635 | if (VG_(clo_trace_syscalls)) |
| 636 | VG_(printf)("init_module ( %p, %p )\n", arg1, arg2 ); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 637 | must_be_readable_asciiz( tst, "init_module(name)", arg1 ); |
| 638 | must_be_readable( tst, "init_module(image)", arg2, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 639 | sizeof(struct module) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 640 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 641 | break; |
| 642 | |
| 643 | case __NR_ioperm: /* syscall 101 */ |
| 644 | /* int ioperm(unsigned long from, unsigned long num, int turn_on); */ |
| 645 | if (VG_(clo_trace_syscalls)) |
| 646 | VG_(printf)("ioperm ( %d, %d, %d )\n", arg1, arg2, arg3 ); |
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 | |
| 650 | case __NR_capget: /* syscall 184 */ |
| 651 | /* int capget(cap_user_header_t header, cap_user_data_t data); */ |
| 652 | if (VG_(clo_trace_syscalls)) |
| 653 | VG_(printf)("capget ( %p, %p )\n", arg1, arg2 ); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 654 | must_be_readable( tst, "capget(header)", arg1, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 655 | sizeof(vki_cap_user_header_t) ); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 656 | must_be_writable( tst, "capget(data)", arg2, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 657 | sizeof( vki_cap_user_data_t) ); |
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 | if (!VG_(is_kerror)(res) && arg2 != (Addr)NULL) |
| 660 | make_readable ( arg2, sizeof( vki_cap_user_data_t) ); |
| 661 | break; |
| 662 | |
| 663 | /* !!!!!!!!!!!!!!!!!!!!! mutant ones !!!!!!!!!!!!!!!!!!!!! */ |
| 664 | |
| 665 | case __NR_execve: |
| 666 | /* int execve (const char *filename, |
| 667 | char *const argv [], |
| 668 | char *const envp[]); */ |
| 669 | if (VG_(clo_trace_syscalls)) |
| 670 | VG_(printf)("execve ( %p(%s), %p, %p ) --- NOT CHECKED\n", |
| 671 | arg1, arg1, arg2, arg3); |
| 672 | /* Make any binding for LD_PRELOAD disappear, so that child |
| 673 | processes don't get traced into. */ |
| 674 | if (!VG_(clo_trace_children)) { |
| 675 | Int i; |
| 676 | Char** envp = (Char**)arg3; |
| 677 | for (i = 0; envp[i] != NULL; i++) { |
| 678 | if (VG_(strncmp)(envp[i], "LD_PRELOAD=", 11) == 0) { |
| 679 | VG_(mash_LD_PRELOAD_string)(&envp[i][11]); |
| 680 | } |
| 681 | } |
| 682 | } |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 683 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 684 | /* Should we still be alive here? Don't think so. */ |
| 685 | /* Actually, above comment is wrong. execve can fail, just |
| 686 | like any other syscall -- typically the file to exec does |
| 687 | not exist. Hence: */ |
| 688 | vg_assert(VG_(is_kerror)(res)); |
| 689 | break; |
| 690 | |
| 691 | case __NR_exit: /* syscall 1 */ |
| 692 | /* void _exit(int status); */ |
| 693 | if (VG_(clo_trace_syscalls)) |
| 694 | VG_(printf)("exit ( %d )\n", arg1); |
| 695 | VG_(message)(Vg_UserMsg, |
| 696 | "Warning: client exiting by calling exit(%d). Bye!", |
| 697 | arg1); |
| 698 | |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 699 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 700 | /* Definitely should not be alive here :) */ |
| 701 | break; |
| 702 | |
| 703 | /* !!!!!!!!!!!!!!!!!!!!! end !!!!!!!!!!!!!!!!!!!!! */ |
| 704 | |
| 705 | case __NR_access: /* syscall 33 */ |
| 706 | /* int access(const char *pathname, int mode); */ |
| 707 | if (VG_(clo_trace_syscalls)) |
| 708 | VG_(printf)("access ( %p, %d )\n", arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 709 | must_be_readable_asciiz( tst, "access(pathname)", arg1 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 710 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 711 | break; |
| 712 | |
| 713 | case __NR_alarm: /* syscall 27 */ |
| 714 | /* unsigned int alarm(unsigned int seconds); */ |
| 715 | if (VG_(clo_trace_syscalls)) |
| 716 | VG_(printf)("alarm ( %d )\n", arg1); |
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 | break; |
| 719 | |
| 720 | case __NR_brk: /* syscall 45 */ |
| 721 | /* Haven't a clue if this is really right. */ |
| 722 | /* int brk(void *end_data_segment); */ |
| 723 | if (VG_(clo_trace_syscalls)) |
| 724 | VG_(printf)("brk ( %p ) --> ",arg1); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 725 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 726 | if (VG_(clo_trace_syscalls)) |
| 727 | VG_(printf)("0x%x\n", res); |
| 728 | |
| 729 | if (!VG_(is_kerror)(res)) { |
| 730 | if (arg1 == 0) { |
| 731 | /* Just asking where the current end is. (???) */ |
| 732 | VGM_(curr_dataseg_end) = res; |
| 733 | } else |
| 734 | if (arg1 < VGM_(curr_dataseg_end)) { |
| 735 | /* shrinking the data segment. */ |
| 736 | make_noaccess( (Addr)arg1, |
| 737 | VGM_(curr_dataseg_end)-arg1 ); |
| 738 | VGM_(curr_dataseg_end) = arg1; |
| 739 | } else |
| 740 | if (arg1 > VGM_(curr_dataseg_end) && res != 0) { |
| 741 | /* asked for more memory, and got it */ |
| 742 | /* |
| 743 | VG_(printf)("BRK: new area %x .. %x\n", |
| 744 | VGM_(curr_dataseg_end, arg1-1 ); |
| 745 | */ |
| 746 | make_writable ( (Addr)VGM_(curr_dataseg_end), |
| 747 | arg1-VGM_(curr_dataseg_end) ); |
| 748 | VGM_(curr_dataseg_end) = arg1; |
| 749 | } |
| 750 | } |
| 751 | break; |
| 752 | |
| 753 | case __NR_chdir: /* syscall 12 */ |
| 754 | /* int chdir(const char *path); */ |
| 755 | if (VG_(clo_trace_syscalls)) |
| 756 | VG_(printf)("chdir ( %p )\n", arg1); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 757 | must_be_readable_asciiz( tst, "chdir(path)", arg1 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 758 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 759 | break; |
| 760 | |
| 761 | case __NR_chmod: /* syscall 15 */ |
| 762 | /* int chmod(const char *path, mode_t mode); */ |
| 763 | if (VG_(clo_trace_syscalls)) |
| 764 | VG_(printf)("chmod ( %p, %d )\n", arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 765 | must_be_readable_asciiz( tst, "chmod(path)", arg1 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 766 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 767 | break; |
| 768 | |
| 769 | # if defined(__NR_chown32) |
| 770 | case __NR_chown32: /* syscall 212 */ |
| 771 | # endif |
| 772 | # if defined(__NR_lchown32) |
| 773 | case __NR_lchown32: /* syscall 198 */ |
| 774 | # endif |
| 775 | case __NR_chown: /* syscall 16 */ |
| 776 | /* int chown(const char *path, uid_t owner, gid_t group); */ |
| 777 | if (VG_(clo_trace_syscalls)) |
| 778 | VG_(printf)("chown ( %p, 0x%x, 0x%x )\n", arg1,arg2,arg3); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 779 | must_be_readable_asciiz( tst, "chown(path)", arg1 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 780 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 781 | break; |
| 782 | |
| 783 | case __NR_close: /* syscall 6 */ |
| 784 | /* int close(int fd); */ |
| 785 | if (VG_(clo_trace_syscalls)) |
| 786 | VG_(printf)("close ( %d )\n",arg1); |
| 787 | /* Detect and negate attempts by the client to close Valgrind's |
| 788 | logfile fd ... */ |
| 789 | if (arg1 == VG_(clo_logfile_fd)) { |
| 790 | VG_(message)(Vg_UserMsg, |
| 791 | "Warning: client attempted to close " |
| 792 | "Valgrind's logfile fd (%d).", |
| 793 | VG_(clo_logfile_fd)); |
| 794 | VG_(message)(Vg_UserMsg, |
| 795 | " Use --logfile-fd=<number> to select an " |
| 796 | "alternative logfile fd." ); |
| 797 | } else { |
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 | } |
| 800 | break; |
| 801 | |
| 802 | case __NR_dup: /* syscall 41 */ |
| 803 | /* int dup(int oldfd); */ |
| 804 | if (VG_(clo_trace_syscalls)) |
| 805 | VG_(printf)("dup ( %d ) --> ", arg1); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 806 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 807 | if (VG_(clo_trace_syscalls)) |
| 808 | VG_(printf)("%d\n", res); |
| 809 | break; |
| 810 | |
| 811 | case __NR_dup2: /* syscall 63 */ |
| 812 | /* int dup2(int oldfd, int newfd); */ |
| 813 | if (VG_(clo_trace_syscalls)) |
| 814 | VG_(printf)("dup2 ( %d, %d ) ...\n", arg1,arg2); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 815 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 816 | if (VG_(clo_trace_syscalls)) |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 817 | VG_(printf)("SYSCALL[%d] dup2 ( %d, %d ) = %d\n", |
| 818 | VG_(getpid)(), |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 819 | arg1, arg2, res); |
| 820 | break; |
| 821 | |
| 822 | case __NR_fcntl: /* syscall 55 */ |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 823 | /* int fcntl(int fd, int cmd, int arg); */ |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 824 | if (VG_(clo_trace_syscalls)) |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 825 | VG_(printf)("fcntl ( %d, %d, %d )\n",arg1,arg2,arg3); |
| 826 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 827 | break; |
| 828 | |
| 829 | case __NR_fchdir: /* syscall 133 */ |
| 830 | /* int fchdir(int fd); */ |
| 831 | if (VG_(clo_trace_syscalls)) |
| 832 | VG_(printf)("fchdir ( %d )\n", arg1); |
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 | break; |
| 835 | |
sewardj | 2f0de32 | 2002-03-24 10:17:25 +0000 | [diff] [blame] | 836 | # if defined(__NR_fchown32) |
| 837 | case __NR_fchown32: /* syscall 207 */ |
| 838 | # endif |
| 839 | case __NR_fchown: /* syscall 95 */ |
| 840 | /* int fchown(int filedes, uid_t owner, gid_t group); */ |
| 841 | if (VG_(clo_trace_syscalls)) |
| 842 | VG_(printf)("fchown ( %d, %d, %d )\n", arg1,arg2,arg3); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 843 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | 2f0de32 | 2002-03-24 10:17:25 +0000 | [diff] [blame] | 844 | break; |
| 845 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 846 | case __NR_fchmod: /* syscall 94 */ |
| 847 | /* int fchmod(int fildes, mode_t mode); */ |
| 848 | if (VG_(clo_trace_syscalls)) |
| 849 | VG_(printf)("fchmod ( %d, %d )\n", arg1,arg2); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 850 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 851 | break; |
sewardj | 2f0de32 | 2002-03-24 10:17:25 +0000 | [diff] [blame] | 852 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 853 | # if defined(__NR_fcntl64) |
| 854 | case __NR_fcntl64: /* syscall 221 */ |
| 855 | /* I don't know what the prototype for this is supposed to be. */ |
| 856 | /* ??? int fcntl(int fd, int cmd); */ |
| 857 | if (VG_(clo_trace_syscalls)) |
| 858 | VG_(printf)("fcntl64 (?!) ( %d, %d )\n", arg1,arg2); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 859 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 860 | break; |
| 861 | # endif |
| 862 | |
| 863 | case __NR_fstat: /* syscall 108 */ |
| 864 | /* int fstat(int filedes, struct stat *buf); */ |
| 865 | if (VG_(clo_trace_syscalls)) |
| 866 | VG_(printf)("fstat ( %d, %p )\n",arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 867 | must_be_writable( tst, "fstat", arg2, sizeof(struct stat) ); |
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 | if (!VG_(is_kerror)(res)) |
| 870 | make_readable( arg2, sizeof(struct stat) ); |
| 871 | break; |
| 872 | |
| 873 | case __NR_vfork: /* syscall 190 */ |
| 874 | /* pid_t vfork(void); */ |
| 875 | if (VG_(clo_trace_syscalls)) |
| 876 | VG_(printf)("vfork ( ) ... becomes ... "); |
| 877 | /* KLUDGE: we prefer to do a fork rather than vfork. |
| 878 | vfork gives a SIGSEGV, and the stated semantics looks |
| 879 | pretty much impossible for us. */ |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 880 | tst->m_eax = __NR_fork; |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 881 | /* fall through ... */ |
| 882 | case __NR_fork: /* syscall 2 */ |
| 883 | /* pid_t fork(void); */ |
| 884 | if (VG_(clo_trace_syscalls)) |
| 885 | VG_(printf)("fork ()\n"); |
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 | break; |
| 888 | |
| 889 | case __NR_fsync: /* syscall 118 */ |
| 890 | /* int fsync(int fd); */ |
| 891 | if (VG_(clo_trace_syscalls)) |
| 892 | VG_(printf)("fsync ( %d )\n", arg1); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 893 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 894 | break; |
| 895 | |
| 896 | case __NR_ftruncate: /* syscall 93 */ |
| 897 | /* int ftruncate(int fd, size_t length); */ |
| 898 | if (VG_(clo_trace_syscalls)) |
| 899 | VG_(printf)("ftruncate ( %d, %d )\n", arg1,arg2); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 900 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 901 | break; |
| 902 | |
sewardj | 2f0de32 | 2002-03-24 10:17:25 +0000 | [diff] [blame] | 903 | # if defined(__NR_ftruncate64) |
| 904 | case __NR_ftruncate64: /* syscall 194 */ |
| 905 | /* int ftruncate64(int fd, off64_t length); */ |
| 906 | if (VG_(clo_trace_syscalls)) |
| 907 | VG_(printf)("ftruncate64 ( %d, %lld )\n", |
| 908 | arg1,arg2|((long long) arg3 << 32)); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 909 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 910 | break; |
| 911 | # endif |
| 912 | |
| 913 | case __NR_getdents: /* syscall 141 */ |
| 914 | /* int getdents(unsigned int fd, struct dirent *dirp, |
| 915 | unsigned int count); */ |
| 916 | if (VG_(clo_trace_syscalls)) |
| 917 | VG_(printf)("getdents ( %d, %p, %d )\n",arg1,arg2,arg3); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 918 | must_be_writable( tst, "getdents(dirp)", arg2, arg3 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 919 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 920 | if (!VG_(is_kerror)(res) && res > 0) |
| 921 | make_readable( arg2, res ); |
| 922 | break; |
| 923 | |
| 924 | # if defined(__NR_getdents64) |
| 925 | case __NR_getdents64: /* syscall 220 */ |
| 926 | /* int getdents(unsigned int fd, struct dirent64 *dirp, |
| 927 | unsigned int count); */ |
| 928 | if (VG_(clo_trace_syscalls)) |
| 929 | VG_(printf)("getdents64 ( %d, %p, %d )\n",arg1,arg2,arg3); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 930 | must_be_writable( tst, "getdents64(dirp)", arg2, arg3 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 931 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 932 | if (!VG_(is_kerror)(res) && res > 0) |
| 933 | make_readable( arg2, res ); |
| 934 | break; |
| 935 | # endif |
| 936 | |
| 937 | # if defined(__NR_getgroups32) |
| 938 | case __NR_getgroups32: /* syscall 205 */ |
| 939 | # endif |
| 940 | case __NR_getgroups: /* syscall 80 */ |
| 941 | /* int getgroups(int size, gid_t list[]); */ |
| 942 | if (VG_(clo_trace_syscalls)) |
| 943 | VG_(printf)("getgroups ( %d, %p )\n", arg1, arg2); |
| 944 | if (arg1 > 0) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 945 | must_be_writable ( tst, "getgroups(list)", arg2, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 946 | arg1 * sizeof(gid_t) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 947 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 948 | if (arg1 > 0 && !VG_(is_kerror)(res) && res > 0) |
| 949 | make_readable ( arg2, res * sizeof(gid_t) ); |
| 950 | break; |
| 951 | |
| 952 | case __NR_getcwd: /* syscall 183 */ |
| 953 | /* char *getcwd(char *buf, size_t size); */ |
| 954 | if (VG_(clo_trace_syscalls)) |
| 955 | VG_(printf)("getcwd ( %p, %d )\n",arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 956 | must_be_writable( tst, "getcwd(buf)", arg1, arg2 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 957 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 958 | if (!VG_(is_kerror)(res) && res != (Addr)NULL) |
| 959 | make_readable ( arg1, arg2 ); |
| 960 | /* Not really right -- really we should have the asciiz |
| 961 | string starting at arg1 readable, or up to arg2 bytes, |
| 962 | whichever finishes first. */ |
| 963 | break; |
| 964 | |
| 965 | case __NR_geteuid: /* syscall 49 */ |
| 966 | /* uid_t geteuid(void); */ |
| 967 | if (VG_(clo_trace_syscalls)) |
| 968 | VG_(printf)("geteuid ( )\n"); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 969 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 970 | break; |
| 971 | |
| 972 | # if defined(__NR_geteuid32) |
| 973 | case __NR_geteuid32: /* syscall 201 */ |
| 974 | /* ?? uid_t geteuid32(void); */ |
| 975 | if (VG_(clo_trace_syscalls)) |
| 976 | VG_(printf)("geteuid32(?) ( )\n"); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 977 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 978 | break; |
| 979 | # endif |
| 980 | |
| 981 | case __NR_getegid: /* syscall 50 */ |
| 982 | /* gid_t getegid(void); */ |
| 983 | if (VG_(clo_trace_syscalls)) |
| 984 | VG_(printf)("getegid ()\n"); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 985 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 986 | break; |
| 987 | |
| 988 | # if defined(__NR_getegid32) |
| 989 | case __NR_getegid32: /* syscall 202 */ |
| 990 | /* gid_t getegid32(void); */ |
| 991 | if (VG_(clo_trace_syscalls)) |
| 992 | VG_(printf)("getegid32 ()\n"); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 993 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 994 | break; |
| 995 | # endif |
| 996 | |
| 997 | case __NR_getgid: /* syscall 47 */ |
| 998 | /* gid_t getgid(void); */ |
| 999 | if (VG_(clo_trace_syscalls)) |
| 1000 | VG_(printf)("getgid ()\n"); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1001 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1002 | break; |
| 1003 | |
| 1004 | # if defined(__NR_getgid32) |
| 1005 | case __NR_getgid32: /* syscall 200 */ |
| 1006 | /* gid_t getgid32(void); */ |
| 1007 | if (VG_(clo_trace_syscalls)) |
| 1008 | VG_(printf)("getgid32 ()\n"); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1009 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1010 | break; |
| 1011 | # endif |
| 1012 | |
| 1013 | case __NR_getpid: /* syscall 20 */ |
| 1014 | /* pid_t getpid(void); */ |
| 1015 | if (VG_(clo_trace_syscalls)) |
| 1016 | VG_(printf)("getpid ()\n"); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1017 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1018 | break; |
| 1019 | |
| 1020 | case __NR_getpgid: /* syscall 132 */ |
| 1021 | /* pid_t getpgid(pid_t pid); */ |
| 1022 | if (VG_(clo_trace_syscalls)) |
| 1023 | VG_(printf)("getpgid ( %d )\n", arg1); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1024 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1025 | break; |
| 1026 | |
| 1027 | case __NR_getpgrp: /* syscall 65 */ |
| 1028 | /* pid_t getpprp(void); */ |
| 1029 | if (VG_(clo_trace_syscalls)) |
| 1030 | VG_(printf)("getpgrp ()\n"); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1031 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1032 | break; |
| 1033 | |
| 1034 | case __NR_getppid: /* syscall 64 */ |
| 1035 | /* pid_t getppid(void); */ |
| 1036 | if (VG_(clo_trace_syscalls)) |
| 1037 | VG_(printf)("getppid ()\n"); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1038 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1039 | break; |
| 1040 | |
| 1041 | case __NR_getresgid: /* syscall 171 */ |
| 1042 | /* int getresgid(gid_t *rgid, gid_t *egid, gid_t *sgid); */ |
| 1043 | if (VG_(clo_trace_syscalls)) |
| 1044 | VG_(printf)("getresgid ( %p, %p, %p )\n", arg1,arg2,arg3); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1045 | must_be_writable ( tst, "getresgid(rgid)", arg1, sizeof(gid_t) ); |
| 1046 | must_be_writable ( tst, "getresgid(egid)", arg2, sizeof(gid_t) ); |
| 1047 | must_be_writable ( tst, "getresgid(sgid)", arg3, sizeof(gid_t) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1048 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1049 | if (!VG_(is_kerror)(res) && res == 0) { |
| 1050 | make_readable ( arg1, sizeof(gid_t) ); |
| 1051 | make_readable ( arg2, sizeof(gid_t) ); |
| 1052 | make_readable ( arg3, sizeof(gid_t) ); |
| 1053 | } |
| 1054 | break; |
| 1055 | |
| 1056 | # if defined(__NR_getresgid32) |
| 1057 | case __NR_getresgid32: /* syscall 211 */ |
| 1058 | /* int getresgid(gid_t *rgid, gid_t *egid, gid_t *sgid); */ |
| 1059 | if (VG_(clo_trace_syscalls)) |
| 1060 | VG_(printf)("getresgid32 ( %p, %p, %p )\n", arg1,arg2,arg3); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1061 | must_be_writable ( tst, "getresgid32(rgid)", arg1, sizeof(gid_t) ); |
| 1062 | must_be_writable ( tst, "getresgid32(egid)", arg2, sizeof(gid_t) ); |
| 1063 | must_be_writable ( tst, "getresgid32(sgid)", arg3, sizeof(gid_t) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1064 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1065 | if (!VG_(is_kerror)(res) && res == 0) { |
| 1066 | make_readable ( arg1, sizeof(gid_t) ); |
| 1067 | make_readable ( arg2, sizeof(gid_t) ); |
| 1068 | make_readable ( arg3, sizeof(gid_t) ); |
| 1069 | } |
| 1070 | break; |
| 1071 | # endif |
| 1072 | |
| 1073 | case __NR_getresuid: /* syscall 165 */ |
| 1074 | /* int getresuid(uid_t *ruid, uid_t *euid, uid_t *suid); */ |
| 1075 | if (VG_(clo_trace_syscalls)) |
| 1076 | VG_(printf)("getresuid ( %p, %p, %p )\n", arg1,arg2,arg3); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1077 | must_be_writable ( tst, "getresuid(ruid)", arg1, sizeof(uid_t) ); |
| 1078 | must_be_writable ( tst, "getresuid(euid)", arg2, sizeof(uid_t) ); |
| 1079 | must_be_writable ( tst, "getresuid(suid)", arg3, sizeof(uid_t) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1080 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1081 | if (!VG_(is_kerror)(res) && res == 0) { |
| 1082 | make_readable ( arg1, sizeof(uid_t) ); |
| 1083 | make_readable ( arg2, sizeof(uid_t) ); |
| 1084 | make_readable ( arg3, sizeof(uid_t) ); |
| 1085 | } |
| 1086 | break; |
| 1087 | |
| 1088 | # if defined(__NR_getresuid32) |
| 1089 | case __NR_getresuid32: /* syscall 209 */ |
| 1090 | /* int getresuid(uid_t *ruid, uid_t *euid, uid_t *suid); */ |
| 1091 | if (VG_(clo_trace_syscalls)) |
| 1092 | VG_(printf)("getresuid32 ( %p, %p, %p )\n", arg1,arg2,arg3); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1093 | must_be_writable ( tst, "getresuid32(ruid)", arg1, sizeof(uid_t) ); |
| 1094 | must_be_writable ( tst, "getresuid32(euid)", arg2, sizeof(uid_t) ); |
| 1095 | must_be_writable ( tst, "getresuid32(suid)", arg3, sizeof(uid_t) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1096 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1097 | if (!VG_(is_kerror)(res) && res == 0) { |
| 1098 | make_readable ( arg1, sizeof(uid_t) ); |
| 1099 | make_readable ( arg2, sizeof(uid_t) ); |
| 1100 | make_readable ( arg3, sizeof(uid_t) ); |
| 1101 | } |
| 1102 | break; |
| 1103 | # endif |
| 1104 | |
| 1105 | # if defined(__NR_ugetrlimit) |
| 1106 | case __NR_ugetrlimit: /* syscall 191 */ |
| 1107 | # endif |
| 1108 | case __NR_getrlimit: /* syscall 76 */ |
| 1109 | /* int getrlimit (int resource, struct rlimit *rlim); */ |
| 1110 | if (VG_(clo_trace_syscalls)) |
| 1111 | VG_(printf)("getrlimit ( %d, %p )\n", arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1112 | must_be_writable( tst, "getrlimit(rlim)", arg2, |
| 1113 | sizeof(struct rlimit) ); |
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( arg2, sizeof(struct rlimit) ); |
| 1117 | break; |
| 1118 | |
| 1119 | case __NR_getrusage: /* syscall 77 */ |
| 1120 | /* int getrusage (int who, struct rusage *usage); */ |
| 1121 | if (VG_(clo_trace_syscalls)) |
| 1122 | VG_(printf)("getrusage ( %d, %p )\n", arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1123 | must_be_writable( tst, "getrusage(usage)", arg2, |
| 1124 | sizeof(struct rusage) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1125 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1126 | if (!VG_(is_kerror)(res) && res == 0) |
| 1127 | make_readable(arg2, sizeof(struct rusage) ); |
| 1128 | break; |
| 1129 | |
| 1130 | case __NR_gettimeofday: /* syscall 78 */ |
| 1131 | /* int gettimeofday(struct timeval *tv, struct timezone *tz); */ |
| 1132 | if (VG_(clo_trace_syscalls)) |
| 1133 | VG_(printf)("gettimeofday ( %p, %p )\n",arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1134 | must_be_writable( tst, "gettimeofday(tv)", arg1, |
| 1135 | sizeof(struct timeval) ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1136 | if (arg2 != 0) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1137 | must_be_writable( tst, "gettimeofday(tz)", arg2, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1138 | sizeof(struct timezone) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1139 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1140 | if (!VG_(is_kerror)(res) && res == 0) { |
| 1141 | make_readable( arg1, sizeof(struct timeval) ); |
| 1142 | if (arg2 != 0) |
| 1143 | make_readable( arg2, sizeof(struct timezone) ); |
| 1144 | } |
| 1145 | break; |
| 1146 | |
| 1147 | case __NR_getuid: /* syscall 24 */ |
| 1148 | /* uid_t getuid(void); */ |
| 1149 | if (VG_(clo_trace_syscalls)) |
| 1150 | VG_(printf)("getuid ( )\n"); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1151 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1152 | break; |
| 1153 | |
| 1154 | # if defined(__NR_getuid32) |
| 1155 | case __NR_getuid32: /* syscall 199 */ |
| 1156 | /* ???uid_t getuid32(void); */ |
| 1157 | if (VG_(clo_trace_syscalls)) |
| 1158 | VG_(printf)("getuid32 ( )\n"); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1159 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1160 | break; |
| 1161 | # endif |
| 1162 | |
| 1163 | case __NR_ipc: /* syscall 117 */ |
| 1164 | /* int ipc ( unsigned int call, int first, int second, |
| 1165 | int third, void *ptr, long fifth); */ |
| 1166 | { |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1167 | UInt arg6 = tst->m_ebp; |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1168 | |
| 1169 | if (VG_(clo_trace_syscalls)) |
| 1170 | VG_(printf)("ipc ( %d, %d, %d, %d, %p, %d )\n", |
| 1171 | arg1,arg2,arg3,arg4,arg5,arg6); |
| 1172 | switch (arg1 /* call */) { |
| 1173 | case 1: /* IPCOP_semop */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1174 | must_be_readable ( tst, "semop(sops)", arg5, |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1175 | arg3 * sizeof(struct sembuf) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1176 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1177 | break; |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1178 | case 2: /* IPCOP_semget */ |
| 1179 | case 3: /* IPCOP_semctl */ |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1180 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1181 | break; |
| 1182 | case 11: /* IPCOP_msgsnd */ |
| 1183 | { |
| 1184 | struct msgbuf *msgp = (struct msgbuf *)arg5; |
| 1185 | Int msgsz = arg3; |
| 1186 | |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1187 | must_be_readable ( tst, "msgsnd(msgp->mtype)", |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1188 | (UInt)&msgp->mtype, sizeof(msgp->mtype) ); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1189 | must_be_readable ( tst, "msgsnd(msgp->mtext)", |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1190 | (UInt)msgp->mtext, msgsz ); |
| 1191 | |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1192 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1193 | break; |
| 1194 | } |
| 1195 | case 12: /* IPCOP_msgrcv */ |
| 1196 | { |
| 1197 | struct msgbuf *msgp = ((struct ipc_kludge *)arg5)->msgp; |
| 1198 | Int msgsz = arg3; |
| 1199 | |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1200 | must_be_writable ( tst, "msgsnd(msgp->mtype)", |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1201 | (UInt)&msgp->mtype, sizeof(msgp->mtype) ); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1202 | must_be_writable ( tst, "msgsnd(msgp->mtext)", |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1203 | (UInt)msgp->mtext, msgsz ); |
| 1204 | |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1205 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1206 | |
| 1207 | if ( !VG_(is_kerror)(res) && res > 0 ) { |
| 1208 | make_readable ( (UInt)&msgp->mtype, sizeof(msgp->mtype) ); |
| 1209 | make_readable ( (UInt)msgp->mtext, res ); |
| 1210 | } |
| 1211 | break; |
| 1212 | } |
| 1213 | case 13: /* IPCOP_msgget */ |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1214 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1215 | break; |
| 1216 | case 14: /* IPCOP_msgctl */ |
| 1217 | { |
| 1218 | switch (arg3 /* cmd */) { |
| 1219 | case IPC_STAT: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1220 | must_be_writable ( tst, "msgctl(buf)", arg5, |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1221 | sizeof(struct msqid_ds) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1222 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1223 | if ( !VG_(is_kerror)(res) && res > 0 ) { |
| 1224 | make_readable ( arg5, sizeof(struct msqid_ds) ); |
| 1225 | } |
| 1226 | break; |
| 1227 | case IPC_SET: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1228 | must_be_readable ( tst, "msgctl(buf)", arg5, |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1229 | sizeof(struct msqid_ds) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1230 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1231 | break; |
sewardj | c9add3b | 2002-04-16 01:58:19 +0000 | [diff] [blame] | 1232 | # if defined(IPC_64) |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1233 | case IPC_STAT|IPC_64: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1234 | must_be_writable ( tst, "msgctl(buf)", arg5, |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1235 | sizeof(struct msqid64_ds) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1236 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1237 | if ( !VG_(is_kerror)(res) && res > 0 ) { |
| 1238 | make_readable ( arg5, sizeof(struct msqid64_ds) ); |
| 1239 | } |
| 1240 | break; |
sewardj | c9add3b | 2002-04-16 01:58:19 +0000 | [diff] [blame] | 1241 | # endif |
| 1242 | # if defined(IPC_64) |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1243 | case IPC_SET|IPC_64: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1244 | must_be_readable ( tst, "msgctl(buf)", arg5, |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1245 | sizeof(struct msqid64_ds) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1246 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1247 | break; |
sewardj | c9add3b | 2002-04-16 01:58:19 +0000 | [diff] [blame] | 1248 | # endif |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1249 | default: |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1250 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | 5b9e350 | 2002-03-29 04:35:08 +0000 | [diff] [blame] | 1251 | break; |
| 1252 | } |
| 1253 | break; |
| 1254 | } |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1255 | case 21: /* IPCOP_shmat */ |
| 1256 | { |
| 1257 | Int shmid = arg2; |
| 1258 | Int shmflag = arg3; |
| 1259 | UInt addr; |
| 1260 | |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1261 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1262 | |
| 1263 | if ( VG_(is_kerror) ( res ) ) |
| 1264 | break; |
| 1265 | |
| 1266 | /* force readability. before the syscall it is |
| 1267 | * indeed uninitialized, as can be seen in |
| 1268 | * glibc/sysdeps/unix/sysv/linux/shmat.c */ |
| 1269 | make_readable ( arg4, sizeof( ULong ) ); |
| 1270 | |
| 1271 | addr = safe_dereference ( arg4, 0 ); |
| 1272 | if ( addr > 0 ) { |
| 1273 | UInt segmentSize = get_shm_size ( shmid ); |
| 1274 | if ( segmentSize > 0 ) { |
| 1275 | if ( shmflag & SHM_RDONLY ) |
| 1276 | make_readable ( addr, segmentSize ); |
| 1277 | else |
| 1278 | make_readwritable ( addr, segmentSize ); |
| 1279 | } |
| 1280 | } |
| 1281 | break; |
| 1282 | } |
| 1283 | case 22: /* IPCOP_shmdt */ |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1284 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1285 | /* ### FIXME: this should call make_noaccess on the |
| 1286 | * area passed to shmdt. But there's no way to |
| 1287 | * figure out the size of the shared memory segment |
| 1288 | * just from the address... Maybe we want to keep a |
| 1289 | * copy of the exiting mappings inside valgrind? */ |
| 1290 | break; |
| 1291 | case 23: /* IPCOP_shmget */ |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1292 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1293 | break; |
| 1294 | case 24: /* IPCOP_shmctl */ |
| 1295 | { |
| 1296 | if ( arg3 > 0 ) { |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1297 | must_be_readable ( tst, "shmctl(buf)", arg3, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1298 | sizeof( struct shmid_ds ) ); |
| 1299 | |
| 1300 | if ( arg2 == SHM_STAT ) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1301 | must_be_writable( tst, "shmctl(IPC_STAT,buf)", arg3, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1302 | sizeof( struct shmid_ds ) ); |
| 1303 | } |
| 1304 | |
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 | break; |
| 1307 | } |
| 1308 | default: |
| 1309 | VG_(message)(Vg_DebugMsg, |
| 1310 | "FATAL: unhandled syscall(ipc) %d", |
| 1311 | arg1 ); |
| 1312 | VG_(panic)("... bye!\n"); |
| 1313 | break; /*NOTREACHED*/ |
| 1314 | } |
| 1315 | } |
| 1316 | break; |
| 1317 | |
| 1318 | case __NR_ioctl: /* syscall 54 */ |
| 1319 | /* int ioctl(int d, int request, ...) |
| 1320 | [The "third" argument is traditionally char *argp, |
| 1321 | and will be so named for this discussion.] |
| 1322 | */ |
| 1323 | /* |
| 1324 | VG_(message)( |
| 1325 | Vg_DebugMsg, |
| 1326 | "is an IOCTL, request = 0x%x, d = %d, argp = 0x%x", |
| 1327 | arg2,arg1,arg3); |
| 1328 | */ |
| 1329 | if (VG_(clo_trace_syscalls)) |
| 1330 | VG_(printf)("ioctl ( %d, 0x%x, %p )\n",arg1,arg2,arg3); |
| 1331 | switch (arg2 /* request */) { |
| 1332 | case TCSETS: |
| 1333 | case TCSETSW: |
| 1334 | case TCSETSF: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1335 | must_be_readable( tst, "ioctl(TCSETSW)", arg3, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1336 | VKI_SIZEOF_STRUCT_TERMIOS ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1337 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1338 | break; |
| 1339 | case TCGETS: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1340 | must_be_writable( tst, "ioctl(TCGETS)", arg3, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1341 | VKI_SIZEOF_STRUCT_TERMIOS ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1342 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1343 | if (!VG_(is_kerror)(res) && res == 0) |
| 1344 | make_readable ( arg3, VKI_SIZEOF_STRUCT_TERMIOS ); |
| 1345 | break; |
sewardj | 2f0de32 | 2002-03-24 10:17:25 +0000 | [diff] [blame] | 1346 | case TCSETA: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1347 | must_be_readable( tst, "ioctl(TCSETA)", arg3, |
sewardj | 2f0de32 | 2002-03-24 10:17:25 +0000 | [diff] [blame] | 1348 | VKI_SIZEOF_STRUCT_TERMIO ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1349 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | 2f0de32 | 2002-03-24 10:17:25 +0000 | [diff] [blame] | 1350 | break; |
| 1351 | case TCGETA: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1352 | must_be_writable( tst, "ioctl(TCGETA)", arg3, |
sewardj | 2f0de32 | 2002-03-24 10:17:25 +0000 | [diff] [blame] | 1353 | VKI_SIZEOF_STRUCT_TERMIO ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1354 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | 2f0de32 | 2002-03-24 10:17:25 +0000 | [diff] [blame] | 1355 | if (!VG_(is_kerror)(res) && res == 0) |
| 1356 | make_readable ( arg3, VKI_SIZEOF_STRUCT_TERMIO ); |
| 1357 | break; |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1358 | case TCSBRK: |
| 1359 | case TCSBRKP: |
| 1360 | case TCFLSH: |
| 1361 | /* These just take an int by value */ |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1362 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1363 | break; |
| 1364 | case TIOCGWINSZ: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1365 | must_be_writable( tst, "ioctl(TIOCGWINSZ)", arg3, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1366 | sizeof(struct winsize) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1367 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1368 | if (!VG_(is_kerror)(res) && res == 0) |
| 1369 | make_readable ( arg3, sizeof(struct winsize) ); |
| 1370 | break; |
| 1371 | case TIOCSWINSZ: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1372 | must_be_readable( tst, "ioctl(TIOCSWINSZ)", arg3, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1373 | sizeof(struct winsize) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1374 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1375 | break; |
sewardj | 19fe3d0 | 2002-03-29 04:39:00 +0000 | [diff] [blame] | 1376 | case TIOCGPGRP: |
| 1377 | /* Get process group ID for foreground processing group. */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1378 | must_be_writable( tst, "ioctl(TIOCGPGRP)", arg3, |
sewardj | 19fe3d0 | 2002-03-29 04:39:00 +0000 | [diff] [blame] | 1379 | sizeof(pid_t) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1380 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | 19fe3d0 | 2002-03-29 04:39:00 +0000 | [diff] [blame] | 1381 | if (!VG_(is_kerror)(res) && res == 0) |
| 1382 | make_readable ( arg3, sizeof(pid_t) ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1383 | case TIOCGPTN: /* Get Pty Number (of pty-mux device) */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1384 | must_be_writable(tst, "ioctl(TIOCGPTN)", arg3, sizeof(int) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1385 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1386 | if (!VG_(is_kerror)(res) && res == 0) |
| 1387 | make_readable ( arg3, sizeof(int)); |
| 1388 | break; |
sewardj | 73f1f07 | 2002-03-29 14:22:46 +0000 | [diff] [blame] | 1389 | case TIOCSCTTY: |
| 1390 | /* Just takes an int value. */ |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1391 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | 73f1f07 | 2002-03-29 14:22:46 +0000 | [diff] [blame] | 1392 | break; |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1393 | case TIOCSPTLCK: /* Lock/unlock Pty */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1394 | must_be_readable( tst, "ioctl(TIOCSPTLCK)", arg3, sizeof(int) ); |
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; |
| 1397 | case FIONBIO: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1398 | must_be_readable( tst, "ioctl(FIONBIO)", arg3, sizeof(int) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1399 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1400 | break; |
| 1401 | case FIOASYNC: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1402 | must_be_readable( tst, "ioctl(FIOASYNC)", arg3, sizeof(int) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1403 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1404 | break; |
| 1405 | case FIONREAD: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1406 | must_be_writable( tst, "ioctl(FIONREAD)", arg3, sizeof(int) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1407 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1408 | if (!VG_(is_kerror)(res) && res == 0) |
| 1409 | make_readable( arg3, sizeof(int) ); |
| 1410 | break; |
| 1411 | |
| 1412 | /* If you get compilation problems here, change the #if |
| 1413 | 1 to #if 0 and get rid of <scsi/sg.h> in |
| 1414 | vg_unsafe.h. */ |
| 1415 | # if 1 |
| 1416 | case SG_SET_COMMAND_Q: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1417 | must_be_readable( tst, "ioctl(SG_SET_COMMAND_Q)", |
| 1418 | arg3, sizeof(int) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1419 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1420 | break; |
| 1421 | # if defined(SG_IO) |
| 1422 | case SG_IO: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1423 | must_be_writable( tst, "ioctl(SG_IO)", arg3, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1424 | sizeof(struct sg_io_hdr) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1425 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1426 | if (!VG_(is_kerror)(res) && res == 0) |
| 1427 | make_readable (arg3, sizeof(struct sg_io_hdr)); |
| 1428 | break; |
| 1429 | # endif /* SG_IO */ |
| 1430 | case SG_GET_SCSI_ID: |
| 1431 | /* Note: sometimes sg_scsi_id is called sg_scsi_id_t */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1432 | must_be_writable( tst, "ioctl(SG_GET_SCSI_ID)", arg3, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1433 | sizeof(struct sg_scsi_id) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1434 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1435 | if (!VG_(is_kerror)(res) && res == 0) |
| 1436 | make_readable (arg3, sizeof(struct sg_scsi_id)); |
| 1437 | break; |
| 1438 | case SG_SET_RESERVED_SIZE: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1439 | must_be_readable( tst, "ioctl(SG_SET_RESERVED_SIZE)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1440 | arg3, sizeof(int) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1441 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1442 | break; |
| 1443 | case SG_SET_TIMEOUT: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1444 | must_be_readable( tst, "ioctl(SG_SET_TIMEOUT)", arg3, |
| 1445 | sizeof(int) ); |
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 | break; |
| 1448 | case SG_GET_RESERVED_SIZE: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1449 | must_be_writable( tst, "ioctl(SG_GET_RESERVED_SIZE)", arg3, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1450 | sizeof(int) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1451 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1452 | if (!VG_(is_kerror)(res) && res == 0) |
| 1453 | make_readable (arg3, sizeof(int)); |
| 1454 | break; |
| 1455 | case SG_GET_TIMEOUT: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1456 | must_be_writable( tst, "ioctl(SG_GET_TIMEOUT)", arg3, |
| 1457 | sizeof(int) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1458 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1459 | if (!VG_(is_kerror)(res) && res == 0) |
| 1460 | make_readable (arg3, sizeof(int)); |
| 1461 | break; |
| 1462 | case SG_GET_VERSION_NUM: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1463 | must_be_readable( tst, "ioctl(SG_GET_VERSION_NUM)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1464 | arg3, sizeof(int) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1465 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1466 | break; |
| 1467 | # endif |
| 1468 | |
| 1469 | case IIOCGETCPS: |
| 1470 | /* In early 2.4 kernels, ISDN_MAX_CHANNELS was only defined |
| 1471 | * when KERNEL was. I never saw a larger value than 64 though */ |
| 1472 | # ifndef ISDN_MAX_CHANNELS |
| 1473 | # define ISDN_MAX_CHANNELS 64 |
| 1474 | # endif |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1475 | must_be_writable( tst, "ioctl(IIOCGETCPS)", arg3, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1476 | ISDN_MAX_CHANNELS |
| 1477 | * 2 * sizeof(unsigned long) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1478 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1479 | if (!VG_(is_kerror)(res) && res == 0) |
| 1480 | make_readable ( arg3, ISDN_MAX_CHANNELS |
| 1481 | * 2 * sizeof(unsigned long) ); |
| 1482 | break; |
| 1483 | case IIOCNETGPN: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1484 | must_be_readable( tst, "ioctl(IIOCNETGPN)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1485 | (UInt)&((isdn_net_ioctl_phone *)arg3)->name, |
| 1486 | sizeof(((isdn_net_ioctl_phone *)arg3)->name) ); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1487 | must_be_writable( tst, "ioctl(IIOCNETGPN)", arg3, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1488 | sizeof(isdn_net_ioctl_phone) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1489 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1490 | if (!VG_(is_kerror)(res) && res == 0) |
| 1491 | make_readable ( arg3, sizeof(isdn_net_ioctl_phone) ); |
| 1492 | break; |
| 1493 | |
| 1494 | /* These all use struct ifreq AFAIK */ |
| 1495 | case SIOCGIFINDEX: |
| 1496 | case SIOCGIFFLAGS: /* get flags */ |
| 1497 | case SIOCGIFHWADDR: /* Get hardware address */ |
| 1498 | case SIOCGIFMTU: /* get MTU size */ |
| 1499 | case SIOCGIFADDR: /* get PA address */ |
| 1500 | case SIOCGIFNETMASK: /* get network PA mask */ |
| 1501 | case SIOCGIFMETRIC: /* get metric */ |
| 1502 | case SIOCGIFMAP: /* Get device parameters */ |
| 1503 | case SIOCGIFTXQLEN: /* Get the tx queue length */ |
| 1504 | case SIOCGIFDSTADDR: /* get remote PA address */ |
| 1505 | case SIOCGIFBRDADDR: /* get broadcast PA address */ |
| 1506 | case SIOCGIFNAME: /* get iface name */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1507 | must_be_writable(tst, "ioctl(SIOCGIFINDEX)", arg3, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1508 | sizeof(struct ifreq)); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1509 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1510 | if (!VG_(is_kerror)(res) && res == 0) |
| 1511 | make_readable (arg3, sizeof(struct ifreq)); |
| 1512 | break; |
| 1513 | case SIOCGIFCONF: /* get iface list */ |
| 1514 | /* WAS: |
| 1515 | must_be_writable("ioctl(SIOCGIFCONF)", arg3, |
| 1516 | sizeof(struct ifconf)); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1517 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1518 | if (!VG_(is_kerror)(res) && res == 0) |
| 1519 | make_readable (arg3, sizeof(struct ifconf)); |
| 1520 | */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1521 | must_be_readable(tst, "ioctl(SIOCGIFCONF)", arg3, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1522 | sizeof(struct ifconf)); |
| 1523 | if ( arg3 ) { |
| 1524 | // TODO len must be readable and writable |
| 1525 | // buf pointer only needs to be readable |
| 1526 | struct ifconf *ifc = (struct ifconf *) arg3; |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1527 | must_be_writable(tst, "ioctl(SIOCGIFCONF).ifc_buf", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1528 | (Addr)(ifc->ifc_buf), (UInt)(ifc->ifc_len) ); |
| 1529 | } |
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 && arg3 ) { |
| 1532 | struct ifconf *ifc = (struct ifconf *) arg3; |
| 1533 | make_readable ( (Addr)(ifc->ifc_buf), (UInt)(ifc->ifc_len) ); |
| 1534 | } |
| 1535 | break; |
| 1536 | case SIOCGSTAMP: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1537 | must_be_writable(tst, "ioctl(SIOCGSTAMP)", arg3, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1538 | sizeof(struct timeval)); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1539 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1540 | if (!VG_(is_kerror)(res) && res == 0) |
| 1541 | make_readable (arg3, sizeof(struct timeval)); |
| 1542 | break; |
| 1543 | case SIOCGRARP: /* get RARP table entry */ |
| 1544 | case SIOCGARP: /* get ARP table entry */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1545 | must_be_writable(tst, "ioctl(SIOCGARP)", arg3, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1546 | sizeof(struct arpreq)); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1547 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1548 | if (!VG_(is_kerror)(res) && res == 0) |
| 1549 | make_readable (arg3, sizeof(struct arpreq)); |
| 1550 | break; |
| 1551 | |
| 1552 | case SIOCSIFFLAGS: /* set flags */ |
| 1553 | case SIOCSIFMAP: /* Set device parameters */ |
| 1554 | case SIOCSIFTXQLEN: /* Set the tx queue length */ |
| 1555 | case SIOCSIFDSTADDR: /* set remote PA address */ |
| 1556 | case SIOCSIFBRDADDR: /* set broadcast PA address */ |
| 1557 | case SIOCSIFNETMASK: /* set network PA mask */ |
| 1558 | case SIOCSIFMETRIC: /* set metric */ |
| 1559 | case SIOCSIFADDR: /* set PA address */ |
| 1560 | case SIOCSIFMTU: /* set MTU size */ |
| 1561 | case SIOCSIFHWADDR: /* set hardware address */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1562 | must_be_readable(tst,"ioctl(SIOCSIFFLAGS)", arg3, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1563 | sizeof(struct ifreq)); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1564 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1565 | break; |
| 1566 | /* Routing table calls. */ |
| 1567 | case SIOCADDRT: /* add routing table entry */ |
| 1568 | case SIOCDELRT: /* delete routing table entry */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1569 | must_be_readable(tst,"ioctl(SIOCADDRT/DELRT)", arg3, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1570 | sizeof(struct rtentry)); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1571 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1572 | break; |
| 1573 | |
| 1574 | /* RARP cache control calls. */ |
| 1575 | case SIOCDRARP: /* delete RARP table entry */ |
| 1576 | case SIOCSRARP: /* set RARP table entry */ |
| 1577 | /* ARP cache control calls. */ |
| 1578 | case SIOCSARP: /* set ARP table entry */ |
| 1579 | case SIOCDARP: /* delete ARP table entry */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1580 | must_be_readable(tst, "ioctl(SIOCSIFFLAGS)", arg3, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1581 | sizeof(struct ifreq)); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1582 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1583 | break; |
| 1584 | |
| 1585 | case SIOCSPGRP: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1586 | must_be_readable( tst, "ioctl(SIOCSPGRP)", arg3, sizeof(int) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1587 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1588 | break; |
| 1589 | |
| 1590 | /* linux/soundcard interface (OSS) */ |
| 1591 | case SNDCTL_SEQ_GETOUTCOUNT: |
| 1592 | case SNDCTL_SEQ_GETINCOUNT: |
| 1593 | case SNDCTL_SEQ_PERCMODE: |
| 1594 | case SNDCTL_SEQ_TESTMIDI: |
| 1595 | case SNDCTL_SEQ_RESETSAMPLES: |
| 1596 | case SNDCTL_SEQ_NRSYNTHS: |
| 1597 | case SNDCTL_SEQ_NRMIDIS: |
| 1598 | case SNDCTL_SEQ_GETTIME: |
| 1599 | case SNDCTL_DSP_GETFMTS: |
| 1600 | case SNDCTL_DSP_GETTRIGGER: |
| 1601 | case SNDCTL_DSP_GETODELAY: |
| 1602 | # if defined(SNDCTL_DSP_GETSPDIF) |
| 1603 | case SNDCTL_DSP_GETSPDIF: |
| 1604 | # endif |
| 1605 | case SNDCTL_DSP_GETCAPS: |
| 1606 | case SOUND_PCM_READ_RATE: |
| 1607 | case SOUND_PCM_READ_CHANNELS: |
| 1608 | case SOUND_PCM_READ_BITS: |
| 1609 | case (SOUND_PCM_READ_BITS|0x40000000): /* what the fuck ? */ |
| 1610 | case SOUND_PCM_READ_FILTER: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1611 | must_be_writable(tst,"ioctl(SNDCTL_XXX|SOUND_XXX (SIOR, int))", |
| 1612 | arg3, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1613 | sizeof(int)); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1614 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1615 | if (!VG_(is_kerror)(res) && res == 0) |
| 1616 | make_readable (arg3, sizeof(int)); |
| 1617 | break; |
| 1618 | case SNDCTL_SEQ_CTRLRATE: |
| 1619 | case SNDCTL_DSP_SPEED: |
| 1620 | case SNDCTL_DSP_STEREO: |
| 1621 | case SNDCTL_DSP_GETBLKSIZE: |
| 1622 | case SNDCTL_DSP_CHANNELS: |
| 1623 | case SOUND_PCM_WRITE_FILTER: |
| 1624 | case SNDCTL_DSP_SUBDIVIDE: |
| 1625 | case SNDCTL_DSP_SETFRAGMENT: |
sewardj | 8a5089d | 2002-03-24 11:43:56 +0000 | [diff] [blame] | 1626 | # if defined(SNDCTL_DSP_GETCHANNELMASK) |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1627 | case SNDCTL_DSP_GETCHANNELMASK: |
sewardj | 8a5089d | 2002-03-24 11:43:56 +0000 | [diff] [blame] | 1628 | # endif |
| 1629 | # if defined(SNDCTL_DSP_BIND_CHANNEL) |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1630 | case SNDCTL_DSP_BIND_CHANNEL: |
sewardj | 8a5089d | 2002-03-24 11:43:56 +0000 | [diff] [blame] | 1631 | # endif |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1632 | case SNDCTL_TMR_TIMEBASE: |
| 1633 | case SNDCTL_TMR_TEMPO: |
| 1634 | case SNDCTL_TMR_SOURCE: |
| 1635 | case SNDCTL_MIDI_PRETIME: |
| 1636 | case SNDCTL_MIDI_MPUMODE: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1637 | must_be_readable(tst, "ioctl(SNDCTL_XXX|SOUND_XXX " |
| 1638 | "(SIOWR, int))", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1639 | arg3, sizeof(int)); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1640 | must_be_writable(tst, "ioctl(SNDCTL_XXX|SOUND_XXX " |
| 1641 | "(SIOWR, int))", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1642 | arg3, sizeof(int)); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1643 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1644 | break; |
| 1645 | case SNDCTL_DSP_GETOSPACE: |
| 1646 | case SNDCTL_DSP_GETISPACE: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1647 | must_be_writable(tst, |
| 1648 | "ioctl(SNDCTL_XXX|SOUND_XXX " |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1649 | "(SIOR, audio_buf_info))", arg3, |
| 1650 | sizeof(audio_buf_info)); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1651 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1652 | if (!VG_(is_kerror)(res) && res == 0) |
| 1653 | make_readable (arg3, sizeof(audio_buf_info)); |
| 1654 | break; |
| 1655 | case SNDCTL_DSP_SETTRIGGER: |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1656 | must_be_readable(tst, "ioctl(SNDCTL_XXX|SOUND_XXX (SIOW, int))", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1657 | arg3, sizeof(int)); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1658 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1659 | break; |
| 1660 | |
| 1661 | /* We don't have any specific information on it, so |
| 1662 | try to do something reasonable based on direction and |
| 1663 | size bits. The encoding scheme is described in |
| 1664 | /usr/include/asm/ioctl.h. */ |
| 1665 | default: { |
| 1666 | UInt dir = _IOC_DIR(arg2); |
| 1667 | UInt size = _IOC_SIZE(arg2); |
| 1668 | if (/* size == 0 || */ dir == _IOC_NONE) { |
| 1669 | VG_(message)(Vg_UserMsg, |
| 1670 | "Warning: noted but unhandled ioctl 0x%x" |
| 1671 | " with no size/direction hints", |
| 1672 | arg2); |
| 1673 | VG_(message)(Vg_UserMsg, |
| 1674 | " This could cause spurious value errors" |
| 1675 | " to appear."); |
| 1676 | VG_(message)(Vg_UserMsg, |
| 1677 | " See README_MISSING_SYSCALL_OR_IOCTL for guidance on" |
| 1678 | " writing a proper wrapper." ); |
| 1679 | } else { |
| 1680 | if ((dir & _IOC_READ) && size > 0) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1681 | must_be_readable(tst, "ioctl(generic)", arg3, size); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1682 | if ((dir & _IOC_WRITE) && size > 0) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1683 | must_be_writable(tst, "ioctl(generic)", arg3, size); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1684 | } |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1685 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1686 | if (size > 0 && (dir & _IOC_WRITE) |
| 1687 | && !VG_(is_kerror)(res) && res == 0) |
| 1688 | make_readable (arg3, size); |
| 1689 | break; |
| 1690 | } |
| 1691 | } |
| 1692 | break; |
| 1693 | |
| 1694 | case __NR_kill: /* syscall 37 */ |
| 1695 | /* int kill(pid_t pid, int sig); */ |
| 1696 | if (VG_(clo_trace_syscalls)) |
| 1697 | VG_(printf)("kill ( %d, %d )\n", arg1,arg2); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1698 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1699 | break; |
| 1700 | |
| 1701 | case __NR_link: /* syscall 9 */ |
| 1702 | /* int link(const char *oldpath, const char *newpath); */ |
| 1703 | if (VG_(clo_trace_syscalls)) |
| 1704 | VG_(printf)("link ( %p, %p)\n", arg1, arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1705 | must_be_readable_asciiz( tst, "link(oldpath)", arg1); |
| 1706 | must_be_readable_asciiz( tst, "link(newpath)", arg2); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1707 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1708 | break; |
| 1709 | |
| 1710 | case __NR_lseek: /* syscall 19 */ |
| 1711 | /* off_t lseek(int fildes, off_t offset, int whence); */ |
| 1712 | if (VG_(clo_trace_syscalls)) |
| 1713 | VG_(printf)("lseek ( %d, %d, %d )\n",arg1,arg2,arg3); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1714 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1715 | break; |
| 1716 | |
| 1717 | case __NR__llseek: /* syscall 140 */ |
| 1718 | /* int _llseek(unsigned int fd, unsigned long offset_high, |
| 1719 | unsigned long offset_low, |
| 1720 | loff_t * result, unsigned int whence); */ |
| 1721 | if (VG_(clo_trace_syscalls)) |
| 1722 | VG_(printf)("llseek ( %d, 0x%x, 0x%x, %p, %d )\n", |
| 1723 | arg1,arg2,arg3,arg4,arg5); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1724 | must_be_writable( tst, "llseek(result)", arg4, sizeof(loff_t)); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1725 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1726 | if (!VG_(is_kerror)(res) && res == 0) |
| 1727 | make_readable( arg4, sizeof(loff_t) ); |
| 1728 | break; |
| 1729 | |
| 1730 | case __NR_lstat: /* syscall 107 */ |
| 1731 | /* int lstat(const char *file_name, struct stat *buf); */ |
| 1732 | if (VG_(clo_trace_syscalls)) |
| 1733 | VG_(printf)("lstat ( %p, %p )\n",arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1734 | must_be_readable_asciiz( tst, "lstat(file_name)", arg1 ); |
| 1735 | must_be_writable( tst, "lstat(buf)", arg2, sizeof(struct stat) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1736 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1737 | if (!VG_(is_kerror)(res) && res == 0) { |
| 1738 | make_readable( arg2, sizeof(struct stat) ); |
| 1739 | } |
| 1740 | break; |
| 1741 | |
| 1742 | # if defined(__NR_lstat64) |
| 1743 | case __NR_lstat64: /* syscall 196 */ |
| 1744 | /* int lstat64(const char *file_name, struct stat64 *buf); */ |
| 1745 | if (VG_(clo_trace_syscalls)) |
| 1746 | VG_(printf)("lstat64 ( %p, %p )\n",arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1747 | must_be_readable_asciiz( tst, "lstat64(file_name)", arg1 ); |
| 1748 | must_be_writable( tst, "lstat64(buf)", arg2, sizeof(struct stat64) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1749 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1750 | if (!VG_(is_kerror)(res) && res == 0) { |
| 1751 | make_readable( arg2, sizeof(struct stat64) ); |
| 1752 | } |
| 1753 | break; |
| 1754 | # endif |
| 1755 | |
| 1756 | case __NR_mkdir: /* syscall 39 */ |
| 1757 | /* int mkdir(const char *pathname, mode_t mode); */ |
| 1758 | if (VG_(clo_trace_syscalls)) |
| 1759 | VG_(printf)("mkdir ( %p, %d )\n", arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1760 | must_be_readable_asciiz( tst, "mkdir(pathname)", arg1 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1761 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1762 | break; |
| 1763 | |
| 1764 | # if defined(__NR_mmap2) |
| 1765 | case __NR_mmap2: /* syscall 192 */ |
| 1766 | /* My impression is that this is exactly like __NR_mmap |
| 1767 | except that all 6 args are passed in regs, rather than in |
| 1768 | a memory-block. */ |
| 1769 | /* void* mmap(void *start, size_t length, int prot, |
| 1770 | int flags, int fd, off_t offset); |
| 1771 | */ |
| 1772 | { |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1773 | UInt arg6 = tst->m_ebp; |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1774 | if (VG_(clo_trace_syscalls)) |
| 1775 | VG_(printf)("mmap2 ( %p, %d, %d, %d, %d, %d )\n", |
| 1776 | arg1, arg2, arg3, arg4, arg5, arg6 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1777 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1778 | /* !!! shouldn't we also be doing the symtab loading stuff as |
| 1779 | in __NR_mmap ? */ |
| 1780 | if (!VG_(is_kerror)(res)) |
| 1781 | approximate_mmap_permissions( (Addr)res, arg2, arg3 ); |
| 1782 | } |
| 1783 | break; |
| 1784 | # endif |
| 1785 | |
| 1786 | case __NR_mmap: /* syscall 90 */ |
| 1787 | /* void* mmap(void *start, size_t length, int prot, |
| 1788 | int flags, int fd, off_t offset); |
| 1789 | */ |
| 1790 | { |
| 1791 | Bool arg_block_readable |
| 1792 | = VG_(clo_instrument) |
| 1793 | ? VGM_(check_readable)(arg1, 6*sizeof(UInt), NULL) |
| 1794 | : True; |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1795 | must_be_readable( tst, "mmap(args)", arg1, 6*sizeof(UInt) ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1796 | if (arg_block_readable) { |
| 1797 | UInt* arg_block = (UInt*)arg1; |
| 1798 | UInt arg6; |
| 1799 | arg1 = arg_block[0]; |
| 1800 | arg2 = arg_block[1]; |
| 1801 | arg3 = arg_block[2]; |
| 1802 | arg4 = arg_block[3]; |
| 1803 | arg5 = arg_block[4]; |
| 1804 | arg6 = arg_block[5]; |
| 1805 | if (VG_(clo_trace_syscalls)) |
| 1806 | VG_(printf)("mmap ( %p, %d, %d, %d, %d, %d )\n", |
| 1807 | arg1, arg2, arg3, arg4, arg5, arg6 ); |
| 1808 | } |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1809 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1810 | if (arg_block_readable && !VG_(is_kerror)(res)) |
| 1811 | approximate_mmap_permissions( (Addr)res, arg2, arg3 ); |
| 1812 | if (arg_block_readable && !VG_(is_kerror)(res) |
| 1813 | && (arg3 & PROT_EXEC)) { |
| 1814 | /* The client mmap'ed a segment with executable |
| 1815 | permissions. Tell the symbol-table loader, so that it |
| 1816 | has an opportunity to pick up more symbols if this mmap |
| 1817 | was caused by the client loading a new .so via |
| 1818 | dlopen(). This is important for debugging KDE. */ |
| 1819 | VG_(read_symbols)(); |
| 1820 | } |
| 1821 | } |
| 1822 | |
| 1823 | break; |
| 1824 | |
| 1825 | case __NR_mprotect: /* syscall 125 */ |
| 1826 | /* int mprotect(const void *addr, size_t len, int prot); */ |
| 1827 | /* should addr .. addr+len-1 be checked before the call? */ |
| 1828 | if (VG_(clo_trace_syscalls)) |
| 1829 | VG_(printf)("mprotect ( %p, %d, %d )\n", arg1,arg2,arg3); |
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 (!VG_(is_kerror)(res)) |
| 1832 | approximate_mmap_permissions ( arg1, arg2, arg3 ); |
| 1833 | break; |
| 1834 | |
| 1835 | case __NR_munmap: /* syscall 91 */ |
| 1836 | /* int munmap(void *start, size_t length); */ |
| 1837 | /* should start .. start+length-1 be checked before the call? */ |
| 1838 | if (VG_(clo_trace_syscalls)) |
| 1839 | VG_(printf)("munmap ( %p, %d )\n", arg1,arg2); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1840 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1841 | if (!VG_(is_kerror)(res)) { |
| 1842 | /* Mash around start and length so that the area passed to |
| 1843 | make_noaccess() exactly covers an integral number of |
| 1844 | pages. If we don't do that, our idea of addressible |
| 1845 | memory diverges from that of the kernel's, which causes |
| 1846 | the leak detector to crash. */ |
| 1847 | Addr start = arg1; |
| 1848 | Addr length = arg2; |
| 1849 | while ((start % VKI_BYTES_PER_PAGE) > 0) { start--; length++; } |
| 1850 | while (((start+length) % VKI_BYTES_PER_PAGE) > 0) { length++; } |
| 1851 | /* |
| 1852 | VG_(printf)("MUNMAP: correct (%p for %d) to (%p for %d) %s\n", |
| 1853 | arg1, arg2, start, length, (arg1!=start || arg2!=length) |
| 1854 | ? "CHANGE" : ""); |
| 1855 | */ |
| 1856 | make_noaccess( start, length ); |
| 1857 | /* Tell our symbol table machinery about this, so that if |
| 1858 | this happens to be a .so being unloaded, the relevant |
| 1859 | symbols are removed too. */ |
| 1860 | VG_(symtab_notify_munmap) ( start, length ); |
| 1861 | } |
| 1862 | break; |
| 1863 | |
| 1864 | case __NR_nanosleep: /* syscall 162 */ |
| 1865 | /* int nanosleep(const struct timespec *req, struct timespec *rem); */ |
| 1866 | if (VG_(clo_trace_syscalls)) |
| 1867 | VG_(printf)("nanosleep ( %p, %p )\n", arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1868 | must_be_readable ( tst, "nanosleep(req)", arg1, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1869 | sizeof(struct timespec) ); |
| 1870 | if (arg2 != (UInt)NULL) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1871 | must_be_writable ( tst, "nanosleep(rem)", arg2, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1872 | sizeof(struct timespec) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1873 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1874 | /* Somewhat bogus ... is only written by the kernel if |
| 1875 | res == -1 && errno == EINTR. */ |
| 1876 | if (!VG_(is_kerror)(res) && arg2 != (UInt)NULL) |
| 1877 | make_readable ( arg2, sizeof(struct timespec) ); |
| 1878 | break; |
| 1879 | |
| 1880 | case __NR__newselect: /* syscall 142 */ |
| 1881 | /* int select(int n, |
| 1882 | fd_set *readfds, fd_set *writefds, fd_set *exceptfds, |
| 1883 | struct timeval *timeout); |
| 1884 | */ |
| 1885 | if (VG_(clo_trace_syscalls)) |
| 1886 | VG_(printf)("newselect ( %d, %p, %p, %p, %p )\n", |
| 1887 | arg1,arg2,arg3,arg4,arg5); |
| 1888 | if (arg2 != 0) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1889 | must_be_readable( tst, "newselect(readfds)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1890 | arg2, arg1/8 /* __FD_SETSIZE/8 */ ); |
| 1891 | if (arg3 != 0) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1892 | must_be_readable( tst, "newselect(writefds)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1893 | arg3, arg1/8 /* __FD_SETSIZE/8 */ ); |
| 1894 | if (arg4 != 0) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1895 | must_be_readable( tst, "newselect(exceptfds)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1896 | arg4, arg1/8 /* __FD_SETSIZE/8 */ ); |
| 1897 | if (arg5 != 0) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1898 | must_be_readable( tst, "newselect(timeout)", arg5, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1899 | sizeof(struct timeval) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1900 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1901 | break; |
| 1902 | |
| 1903 | case __NR_open: /* syscall 5 */ |
| 1904 | /* int open(const char *pathname, int flags); */ |
| 1905 | if (VG_(clo_trace_syscalls)) |
| 1906 | VG_(printf)("open ( %p(%s), %d ) --> ",arg1,arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1907 | must_be_readable_asciiz( tst, "open(pathname)", arg1 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1908 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1909 | if (VG_(clo_trace_syscalls)) |
| 1910 | VG_(printf)("%d\n",res); |
| 1911 | break; |
| 1912 | |
| 1913 | case __NR_pipe: /* syscall 42 */ |
| 1914 | /* int pipe(int filedes[2]); */ |
| 1915 | if (VG_(clo_trace_syscalls)) |
| 1916 | VG_(printf)("pipe ( %p ) ...\n", arg1); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1917 | must_be_writable( tst, "pipe(filedes)", arg1, 2*sizeof(int) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1918 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1919 | if (!VG_(is_kerror)(res)) |
| 1920 | make_readable ( arg1, 2*sizeof(int) ); |
| 1921 | if (VG_(clo_trace_syscalls) && !VG_(is_kerror)(res)) |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1922 | VG_(printf)("SYSCALL[%d] pipe --> (rd %d, wr %d)\n", |
| 1923 | VG_(getpid)(), |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1924 | ((UInt*)arg1)[0], ((UInt*)arg1)[1] ); |
| 1925 | break; |
| 1926 | |
| 1927 | case __NR_poll: /* syscall 168 */ |
| 1928 | /* struct pollfd { |
| 1929 | int fd; -- file descriptor |
| 1930 | short events; -- requested events |
| 1931 | short revents; -- returned events |
| 1932 | }; |
| 1933 | int poll(struct pollfd *ufds, unsigned int nfds, |
| 1934 | int timeout) |
| 1935 | */ |
| 1936 | if (VG_(clo_trace_syscalls)) |
| 1937 | VG_(printf)("poll ( %d, %d, %d )\n",arg1,arg2,arg3); |
| 1938 | /* In fact some parts of this struct should be readable too. |
| 1939 | This should be fixed properly. */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1940 | must_be_writable( tst, "poll(ufds)", |
| 1941 | arg1, arg2 * sizeof(struct pollfd) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1942 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1943 | if (!VG_(is_kerror)(res) && res > 0) { |
| 1944 | Int i; |
| 1945 | struct pollfd * arr = (struct pollfd *)arg1; |
| 1946 | for (i = 0; i < arg2; i++) |
| 1947 | make_readable( (Addr)(&arr[i].revents), sizeof(Short) ); |
| 1948 | } |
| 1949 | break; |
| 1950 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1951 | case __NR_readlink: /* syscall 85 */ |
| 1952 | /* int readlink(const char *path, char *buf, size_t bufsiz); */ |
| 1953 | if (VG_(clo_trace_syscalls)) |
| 1954 | VG_(printf)("readlink ( %p, %p, %d )\n", arg1,arg2,arg3); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1955 | must_be_readable_asciiz( tst, "readlink(path)", arg1 ); |
| 1956 | must_be_writable ( tst, "readlink(buf)", arg2,arg3 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1957 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1958 | if (!VG_(is_kerror)(res) && res > 0) { |
| 1959 | make_readable ( arg2, res ); |
| 1960 | } |
| 1961 | break; |
| 1962 | |
| 1963 | case __NR_readv: { /* syscall 145 */ |
| 1964 | /* int readv(int fd, const struct iovec * vector, size_t count); */ |
| 1965 | UInt i; |
| 1966 | struct iovec * vec; |
| 1967 | if (VG_(clo_trace_syscalls)) |
| 1968 | VG_(printf)("readv ( %d, %p, %d )\n",arg1,arg2,arg3); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1969 | must_be_readable( tst, "readv(vector)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1970 | arg2, arg3 * sizeof(struct iovec) ); |
| 1971 | /* ToDo: don't do any of the following if the vector is invalid */ |
| 1972 | vec = (struct iovec *)arg2; |
| 1973 | for (i = 0; i < arg3; i++) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1974 | must_be_writable( tst, "readv(vector[...])", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1975 | (UInt)vec[i].iov_base,vec[i].iov_len ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1976 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1977 | if (!VG_(is_kerror)(res) && res > 0) { |
| 1978 | /* res holds the number of bytes read. */ |
| 1979 | for (i = 0; i < arg3; i++) { |
| 1980 | Int nReadThisBuf = vec[i].iov_len; |
| 1981 | if (nReadThisBuf > res) nReadThisBuf = res; |
| 1982 | make_readable( (UInt)vec[i].iov_base, nReadThisBuf ); |
| 1983 | res -= nReadThisBuf; |
| 1984 | if (res < 0) VG_(panic)("vg_wrap_syscall: readv: res < 0"); |
| 1985 | } |
| 1986 | } |
| 1987 | break; |
| 1988 | } |
| 1989 | |
| 1990 | case __NR_rename: /* syscall 38 */ |
| 1991 | /* int rename(const char *oldpath, const char *newpath); */ |
| 1992 | if (VG_(clo_trace_syscalls)) |
| 1993 | VG_(printf)("rename ( %p, %p )\n", arg1, arg2 ); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 1994 | must_be_readable_asciiz( tst, "rename(oldpath)", arg1 ); |
| 1995 | must_be_readable_asciiz( tst, "rename(newpath)", arg2 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 1996 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 1997 | break; |
| 1998 | |
| 1999 | case __NR_rmdir: /* syscall 40 */ |
| 2000 | /* int rmdir(const char *pathname); */ |
| 2001 | if (VG_(clo_trace_syscalls)) |
| 2002 | VG_(printf)("rmdir ( %p )\n", arg1); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2003 | must_be_readable_asciiz( tst, "rmdir(pathname)", arg1 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2004 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2005 | break; |
| 2006 | |
| 2007 | case __NR_sched_setparam: |
| 2008 | case __NR_sched_getparam: |
| 2009 | case __NR_sched_yield: |
| 2010 | case __NR_sched_get_priority_min: |
| 2011 | if (VG_(clo_instrument)) { |
| 2012 | VG_(message)(Vg_UserMsg, |
| 2013 | "Warning: noted but unhandled __NR_sched_* syscall (%d).", |
| 2014 | syscallno); |
| 2015 | VG_(message)(Vg_UserMsg, |
| 2016 | " This could cause spurious value errors" |
| 2017 | " to appear."); |
| 2018 | } |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2019 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2020 | break; |
| 2021 | |
| 2022 | case __NR_select: /* syscall 82 */ |
| 2023 | /* struct sel_arg_struct { |
| 2024 | unsigned long n; |
| 2025 | fd_set *inp, *outp, *exp; |
| 2026 | struct timeval *tvp; |
| 2027 | }; |
| 2028 | int old_select(struct sel_arg_struct *arg); |
| 2029 | */ |
| 2030 | { |
| 2031 | Bool arg_block_readable |
| 2032 | = VG_(clo_instrument) |
| 2033 | ? VGM_(check_readable)(arg1, 5*sizeof(UInt), NULL) |
| 2034 | : True; |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2035 | must_be_readable ( tst, "select(args)", arg1, 5*sizeof(UInt) ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2036 | if (arg_block_readable) { |
| 2037 | UInt* arg_struct = (UInt*)arg1; |
| 2038 | arg1 = arg_struct[0]; |
| 2039 | arg2 = arg_struct[1]; |
| 2040 | arg3 = arg_struct[2]; |
| 2041 | arg4 = arg_struct[3]; |
| 2042 | arg5 = arg_struct[4]; |
| 2043 | |
| 2044 | if (VG_(clo_trace_syscalls)) |
| 2045 | VG_(printf)("select ( %d, %p, %p, %p, %p )\n", |
| 2046 | arg1,arg2,arg3,arg4,arg5); |
| 2047 | if (arg2 != (Addr)NULL) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2048 | must_be_readable(tst, "select(readfds)", arg2, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2049 | arg1/8 /* __FD_SETSIZE/8 */ ); |
| 2050 | if (arg3 != (Addr)NULL) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2051 | must_be_readable(tst, "select(writefds)", arg3, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2052 | arg1/8 /* __FD_SETSIZE/8 */ ); |
| 2053 | if (arg4 != (Addr)NULL) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2054 | must_be_readable(tst, "select(exceptfds)", arg4, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2055 | arg1/8 /* __FD_SETSIZE/8 */ ); |
| 2056 | if (arg5 != (Addr)NULL) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2057 | must_be_readable(tst, "select(timeout)", arg5, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2058 | sizeof(struct timeval) ); |
| 2059 | } |
| 2060 | } |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2061 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2062 | break; |
| 2063 | |
| 2064 | case __NR_setitimer: /* syscall 104 */ |
| 2065 | /* setitimer(int which, const struct itimerval *value, |
| 2066 | struct itimerval *ovalue); */ |
| 2067 | if (VG_(clo_trace_syscalls)) |
| 2068 | VG_(printf)("setitimer ( %d, %p, %p )\n", arg1,arg2,arg3); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2069 | must_be_readable(tst, "setitimer(value)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2070 | arg2, sizeof(struct itimerval) ); |
| 2071 | if (arg3 != (Addr)NULL) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2072 | must_be_writable(tst, "setitimer(ovalue)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2073 | arg3, sizeof(struct itimerval)); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2074 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2075 | if (!VG_(is_kerror)(res) && arg3 != (Addr)NULL) { |
| 2076 | make_readable(arg3, sizeof(struct itimerval)); |
| 2077 | } |
| 2078 | break; |
| 2079 | |
| 2080 | # if defined(__NR_setfsgid32) |
| 2081 | case __NR_setfsgid32: /* syscall 216 */ |
| 2082 | /* int setfsgid(uid_t fsgid); */ |
| 2083 | if (VG_(clo_trace_syscalls)) |
| 2084 | VG_(printf)("setfsgid ( %d )\n", arg1); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2085 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2086 | break; |
| 2087 | # endif |
| 2088 | |
| 2089 | # if defined(__NR_setgid32) |
| 2090 | case __NR_setgid32: /* syscall 214 */ |
| 2091 | # endif |
| 2092 | case __NR_setgid: /* syscall 46 */ |
| 2093 | /* int setgid(gid_t gid); */ |
| 2094 | if (VG_(clo_trace_syscalls)) |
| 2095 | VG_(printf)("setgid ( %d )\n", arg1); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2096 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2097 | break; |
| 2098 | |
| 2099 | case __NR_setsid: /* syscall 66 */ |
| 2100 | /* pid_t setsid(void); */ |
| 2101 | if (VG_(clo_trace_syscalls)) |
| 2102 | VG_(printf)("setsid ()\n"); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2103 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2104 | break; |
| 2105 | |
| 2106 | # if defined(__NR_setgroups32) |
| 2107 | case __NR_setgroups32: /* syscall 206 */ |
sewardj | 2f0de32 | 2002-03-24 10:17:25 +0000 | [diff] [blame] | 2108 | # endif |
| 2109 | case __NR_setgroups: /* syscall 81 */ |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2110 | /* int setgroups(size_t size, const gid_t *list); */ |
| 2111 | if (VG_(clo_trace_syscalls)) |
| 2112 | VG_(printf)("setgroups ( %d, %p )\n", arg1, arg2); |
| 2113 | if (arg1 > 0) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2114 | must_be_readable ( tst, "setgroups(list)", arg2, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2115 | arg1 * sizeof(gid_t) ); |
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; |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2118 | |
| 2119 | case __NR_setpgid: /* syscall 57 */ |
| 2120 | /* int setpgid(pid_t pid, pid_t pgid); */ |
| 2121 | if (VG_(clo_trace_syscalls)) |
| 2122 | VG_(printf)("setpgid ( %d, %d )\n", arg1, arg2); |
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_setregid32) |
| 2127 | case __NR_setregid32: /* syscall 204 */ |
| 2128 | /* int setregid(gid_t rgid, gid_t egid); */ |
| 2129 | if (VG_(clo_trace_syscalls)) |
| 2130 | VG_(printf)("setregid32(?) ( %d, %d )\n", arg1, arg2); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2131 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2132 | break; |
| 2133 | # endif |
| 2134 | |
| 2135 | # if defined(__NR_setresuid32) |
| 2136 | case __NR_setresuid32: /* syscall 208 */ |
| 2137 | /* int setresuid(uid_t ruid, uid_t euid, uid_t suid); */ |
| 2138 | if (VG_(clo_trace_syscalls)) |
| 2139 | VG_(printf)("setresuid32(?) ( %d, %d, %d )\n", arg1, arg2, arg3); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2140 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2141 | break; |
| 2142 | # endif |
| 2143 | |
| 2144 | # if defined(__NR_setreuid32) |
| 2145 | case __NR_setreuid32: /* syscall 203 */ |
| 2146 | # endif |
| 2147 | case __NR_setreuid: /* syscall 70 */ |
| 2148 | /* int setreuid(uid_t ruid, uid_t euid); */ |
| 2149 | if (VG_(clo_trace_syscalls)) |
| 2150 | VG_(printf)("setreuid ( 0x%x, 0x%x )\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 | |
| 2154 | case __NR_setrlimit: /* syscall 75 */ |
| 2155 | /* int setrlimit (int resource, const struct rlimit *rlim); */ |
| 2156 | if (VG_(clo_trace_syscalls)) |
| 2157 | VG_(printf)("setrlimit ( %d, %p )\n", arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2158 | must_be_readable( tst, "setrlimit(rlim)", arg2, sizeof(struct rlimit) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2159 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2160 | break; |
| 2161 | |
| 2162 | # if defined(__NR_setuid32) |
| 2163 | case __NR_setuid32: /* syscall 213 */ |
| 2164 | # endif |
| 2165 | case __NR_setuid: /* syscall 23 */ |
| 2166 | /* int setuid(uid_t uid); */ |
| 2167 | if (VG_(clo_trace_syscalls)) |
| 2168 | VG_(printf)("setuid ( %d )\n", arg1); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2169 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2170 | break; |
| 2171 | |
| 2172 | case __NR_socketcall: /* syscall 102 */ |
| 2173 | /* int socketcall(int call, unsigned long *args); */ |
| 2174 | if (VG_(clo_trace_syscalls)) |
| 2175 | VG_(printf)("socketcall ( %d, %p )\n",arg1,arg2); |
| 2176 | switch (arg1 /* request */) { |
| 2177 | |
| 2178 | case SYS_SOCKETPAIR: |
| 2179 | /* int socketpair(int d, int type, int protocol, int sv[2]); */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2180 | must_be_readable( tst, "socketcall.socketpair(args)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2181 | arg2, 4*sizeof(Addr) ); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2182 | must_be_writable( tst, "socketcall.socketpair(sv)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2183 | ((UInt*)arg2)[3], 2*sizeof(int) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2184 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2185 | if (!VG_(is_kerror)(res)) |
| 2186 | make_readable ( ((UInt*)arg2)[3], 2*sizeof(int) ); |
| 2187 | break; |
| 2188 | |
| 2189 | case SYS_SOCKET: |
| 2190 | /* int socket(int domain, int type, int protocol); */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2191 | must_be_readable( tst, "socketcall.socket(args)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2192 | arg2, 3*sizeof(Addr) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2193 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2194 | break; |
| 2195 | |
| 2196 | case SYS_BIND: |
| 2197 | /* int bind(int sockfd, struct sockaddr *my_addr, |
| 2198 | int addrlen); */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2199 | must_be_readable( tst, "socketcall.bind(args)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2200 | arg2, 3*sizeof(Addr) ); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2201 | must_be_readable( tst, "socketcall.bind(my_addr)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2202 | ((UInt*)arg2)[1], ((UInt*)arg2)[2] ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2203 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2204 | break; |
| 2205 | |
| 2206 | case SYS_LISTEN: |
| 2207 | /* int listen(int s, int backlog); */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2208 | must_be_readable( tst, "socketcall.listen(args)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2209 | arg2, 2*sizeof(Addr) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2210 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2211 | break; |
| 2212 | |
| 2213 | case SYS_ACCEPT: { |
| 2214 | /* int accept(int s, struct sockaddr *addr, int *p_addrlen); */ |
| 2215 | Addr addr; |
| 2216 | Addr p_addrlen; |
| 2217 | UInt addrlen_in, addrlen_out; |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2218 | must_be_readable( tst, "socketcall.accept(args)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2219 | arg2, 3*sizeof(Addr) ); |
| 2220 | addr = ((UInt*)arg2)[1]; |
| 2221 | p_addrlen = ((UInt*)arg2)[2]; |
| 2222 | if (p_addrlen != (Addr)NULL) { |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2223 | must_be_readable ( tst, "socketcall.accept(addrlen)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2224 | p_addrlen, sizeof(int) ); |
| 2225 | addrlen_in = safe_dereference( p_addrlen, 0 ); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2226 | must_be_writable ( tst, "socketcall.accept(addr)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2227 | addr, addrlen_in ); |
| 2228 | } |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2229 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2230 | if (!VG_(is_kerror)(res) && res >= 0 && p_addrlen != (Addr)NULL) { |
| 2231 | addrlen_out = safe_dereference( p_addrlen, 0 ); |
| 2232 | if (addrlen_out > 0) |
| 2233 | make_readable( addr, addrlen_out ); |
| 2234 | } |
| 2235 | break; |
| 2236 | } |
| 2237 | |
| 2238 | case SYS_SENDTO: |
| 2239 | /* int sendto(int s, const void *msg, int len, |
| 2240 | unsigned int flags, |
| 2241 | const struct sockaddr *to, int tolen); */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2242 | must_be_readable( tst, "socketcall.sendto(args)", arg2, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2243 | 6*sizeof(Addr) ); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2244 | must_be_readable( tst, "socketcall.sendto(msg)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2245 | ((UInt*)arg2)[1], /* msg */ |
| 2246 | ((UInt*)arg2)[2] /* len */ ); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2247 | must_be_readable( tst, "socketcall.sendto(to)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2248 | ((UInt*)arg2)[4], /* to */ |
| 2249 | ((UInt*)arg2)[5] /* tolen */ ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2250 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2251 | break; |
| 2252 | |
| 2253 | case SYS_SEND: |
| 2254 | /* int send(int s, const void *msg, size_t len, int flags); */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2255 | must_be_readable( tst, "socketcall.send(args)", arg2, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2256 | 4*sizeof(Addr) ); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2257 | must_be_readable( tst, "socketcall.send(msg)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2258 | ((UInt*)arg2)[1], /* msg */ |
| 2259 | ((UInt*)arg2)[2] /* len */ ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2260 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2261 | break; |
| 2262 | |
| 2263 | case SYS_RECVFROM: |
| 2264 | /* int recvfrom(int s, void *buf, int len, unsigned int flags, |
| 2265 | struct sockaddr *from, int *fromlen); */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2266 | must_be_readable( tst, "socketcall.recvfrom(args)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2267 | arg2, 6*sizeof(Addr) ); |
| 2268 | if ( ((UInt*)arg2)[4] /* from */ != 0) { |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2269 | must_be_readable( tst, "socketcall.recvfrom(fromlen)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2270 | ((UInt*)arg2)[5] /* fromlen */, |
| 2271 | sizeof(int) ); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2272 | must_be_writable( tst, "socketcall.recvfrom(from)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2273 | ((UInt*)arg2)[4], /*from*/ |
| 2274 | safe_dereference( (Addr) |
| 2275 | ((UInt*)arg2)[5], 0 ) ); |
| 2276 | } |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2277 | must_be_writable( tst, "socketcall.recvfrom(buf)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2278 | ((UInt*)arg2)[1], /* buf */ |
| 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 | if (!VG_(is_kerror)(res) && res >= 0) { |
| 2282 | make_readable( ((UInt*)arg2)[1], /* buf */ |
| 2283 | ((UInt*)arg2)[2] /* len */ ); |
| 2284 | if ( ((UInt*)arg2)[4] /* from */ != 0) { |
| 2285 | make_readable( |
| 2286 | ((UInt*)arg2)[4], /*from*/ |
| 2287 | safe_dereference( (Addr) ((UInt*)arg2)[5], 0 ) ); |
| 2288 | } |
| 2289 | } |
| 2290 | /* phew! */ |
| 2291 | break; |
| 2292 | |
| 2293 | case SYS_RECV: |
| 2294 | /* int recv(int s, void *buf, int len, unsigned int flags); */ |
| 2295 | /* man 2 recv says: |
| 2296 | The recv call is normally used only on a connected socket |
| 2297 | (see connect(2)) and is identical to recvfrom with a NULL |
| 2298 | from parameter. |
| 2299 | */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2300 | must_be_readable( tst, "socketcall.recv(args)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2301 | arg2, 4*sizeof(Addr) ); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2302 | must_be_writable( tst, "socketcall.recv(buf)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2303 | ((UInt*)arg2)[1], /* buf */ |
| 2304 | ((UInt*)arg2)[2] /* len */ ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2305 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2306 | if (!VG_(is_kerror)(res) && res >= 0 |
| 2307 | && ((UInt*)arg2)[1] != (UInt)NULL) { |
| 2308 | make_readable( ((UInt*)arg2)[1], /* buf */ |
| 2309 | ((UInt*)arg2)[2] /* len */ ); |
| 2310 | } |
| 2311 | break; |
| 2312 | |
| 2313 | case SYS_CONNECT: { |
| 2314 | struct sockaddr *sa; |
| 2315 | /* int connect(int sockfd, |
| 2316 | struct sockaddr *serv_addr, int addrlen ); */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2317 | must_be_readable( tst, "socketcall.connect(args)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2318 | arg2, 3*sizeof(Addr) ); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2319 | must_be_readable( tst, "socketcall.connect(serv_addr.sa_family)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2320 | ((UInt*)arg2)[1], /* serv_addr */ |
| 2321 | sizeof (sa_family_t)); |
| 2322 | sa = (struct sockaddr *) (((UInt*)arg2)[1]); |
| 2323 | if (sa->sa_family == AF_UNIX) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2324 | must_be_readable_asciiz( tst, |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2325 | "socketcall.connect(serv_addr.sun_path)", |
| 2326 | (UInt) ((struct sockaddr_un *) sa)->sun_path); |
| 2327 | /* XXX There probably should be more cases here since not |
| 2328 | all of the struct sockaddr_XXX must be initialized. But |
| 2329 | wait until something pops up. */ |
| 2330 | else |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2331 | must_be_readable( tst, "socketcall.connect(serv_addr)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2332 | ((UInt*)arg2)[1], /* serv_addr */ |
| 2333 | ((UInt*)arg2)[2] /* addrlen */ ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2334 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2335 | break; |
| 2336 | } |
| 2337 | |
| 2338 | case SYS_SETSOCKOPT: |
| 2339 | /* int setsockopt(int s, int level, int optname, |
| 2340 | const void *optval, int optlen); */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2341 | must_be_readable( tst, "socketcall.setsockopt(args)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2342 | arg2, 5*sizeof(Addr) ); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2343 | must_be_readable( tst, "socketcall.setsockopt(optval)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2344 | ((UInt*)arg2)[3], /* optval */ |
| 2345 | ((UInt*)arg2)[4] /* optlen */ ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2346 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2347 | break; |
| 2348 | |
| 2349 | case SYS_GETSOCKOPT: |
| 2350 | /* int setsockopt(int s, int level, int optname, |
| 2351 | void *optval, socklen_t *optlen); */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2352 | must_be_readable( tst, "socketcall.getsockopt(args)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2353 | arg2, 5*sizeof(Addr) ); |
| 2354 | { |
| 2355 | Addr optval_p = ((UInt*)arg2)[3]; |
| 2356 | Addr optlen_p = ((UInt*)arg2)[4]; |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2357 | /* vg_assert(sizeof(socklen_t) == sizeof(UInt)); */ |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2358 | UInt optlen_after; |
| 2359 | UInt optlen = safe_dereference ( optlen_p, 0 ); |
| 2360 | if (optlen > 0) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2361 | must_be_writable( tst, "socketcall.getsockopt(optval)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2362 | optval_p, optlen ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2363 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2364 | optlen_after = safe_dereference ( optlen_p, 0 ); |
| 2365 | if (!VG_(is_kerror)(res) && optlen > 0 && optlen_after > 0) |
| 2366 | make_readable( optval_p, optlen_after ); |
| 2367 | } |
| 2368 | break; |
| 2369 | |
| 2370 | case SYS_GETSOCKNAME: |
| 2371 | /* int getsockname(int s, struct sockaddr* name, |
| 2372 | int* namelen) */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2373 | must_be_readable( tst, "socketcall.getsockname(args)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2374 | arg2, 3*sizeof(Addr) ); |
| 2375 | { |
| 2376 | UInt namelen = safe_dereference( (Addr) ((UInt*)arg2)[2], 0); |
| 2377 | if (namelen > 0) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2378 | must_be_writable( tst, "socketcall.getsockname(name)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2379 | ((UInt*)arg2)[1], namelen ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2380 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2381 | if (!VG_(is_kerror)(res)) { |
| 2382 | namelen = safe_dereference( (Addr) ((UInt*)arg2)[2], 0); |
| 2383 | if (namelen > 0 |
| 2384 | && ((UInt*)arg2)[1] != (UInt)NULL) |
| 2385 | make_readable( ((UInt*)arg2)[1], namelen ); |
| 2386 | } |
| 2387 | } |
| 2388 | break; |
| 2389 | |
| 2390 | case SYS_GETPEERNAME: |
| 2391 | /* int getpeername(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.getpeername(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.getpeername(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_SHUTDOWN: |
| 2411 | /* int shutdown(int s, int how); */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2412 | must_be_readable( tst, "socketcall.shutdown(args)", |
| 2413 | arg2, 2*sizeof(Addr) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2414 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2415 | break; |
| 2416 | |
| 2417 | case SYS_SENDMSG: |
| 2418 | { |
| 2419 | /* int sendmsg(int s, const struct msghdr *msg, int flags); */ |
| 2420 | |
| 2421 | /* this causes warnings, and I don't get why. glibc bug? |
| 2422 | * (after all it's glibc providing the arguments array) |
| 2423 | must_be_readable( "socketcall.sendmsg(args)", |
| 2424 | arg2, 3*sizeof(Addr) ); |
| 2425 | */ |
| 2426 | |
| 2427 | struct msghdr *msg = (struct msghdr *)((UInt *)arg2)[ 1 ]; |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2428 | msghdr_foreachfield ( tst, msg, must_be_readable_sendmsg ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2429 | |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2430 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2431 | break; |
| 2432 | } |
| 2433 | |
| 2434 | case SYS_RECVMSG: |
| 2435 | { |
| 2436 | /* int recvmsg(int s, struct msghdr *msg, int flags); */ |
| 2437 | |
| 2438 | /* this causes warnings, and I don't get why. glibc bug? |
| 2439 | * (after all it's glibc providing the arguments array) |
| 2440 | must_be_readable( "socketcall.recvmsg(args)", |
| 2441 | arg2, 3*sizeof(Addr) ); |
| 2442 | */ |
| 2443 | |
| 2444 | struct msghdr *msg = (struct msghdr *)((UInt *)arg2)[ 1 ]; |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2445 | msghdr_foreachfield ( tst, msg, must_be_writable_recvmsg ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2446 | |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2447 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2448 | |
| 2449 | if ( !VG_(is_kerror)( res ) ) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2450 | msghdr_foreachfield( tst, msg, make_readable_recvmsg ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2451 | |
| 2452 | break; |
| 2453 | } |
| 2454 | |
| 2455 | default: |
| 2456 | VG_(message)(Vg_DebugMsg,"FATAL: unhandled socketcall 0x%x",arg1); |
| 2457 | VG_(panic)("... bye!\n"); |
| 2458 | break; /*NOTREACHED*/ |
| 2459 | } |
| 2460 | break; |
| 2461 | |
| 2462 | case __NR_stat: /* syscall 106 */ |
| 2463 | /* int stat(const char *file_name, struct stat *buf); */ |
| 2464 | if (VG_(clo_trace_syscalls)) |
| 2465 | VG_(printf)("stat ( %p, %p )\n",arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2466 | must_be_readable_asciiz( tst, "stat(file_name)", arg1 ); |
| 2467 | must_be_writable( tst, "stat(buf)", arg2, sizeof(struct stat) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2468 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2469 | if (!VG_(is_kerror)(res)) |
| 2470 | make_readable( arg2, sizeof(struct stat) ); |
| 2471 | break; |
| 2472 | |
| 2473 | case __NR_statfs: /* syscall 99 */ |
| 2474 | /* int statfs(const char *path, struct statfs *buf); */ |
| 2475 | if (VG_(clo_trace_syscalls)) |
| 2476 | VG_(printf)("statfs ( %p, %p )\n",arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2477 | must_be_readable_asciiz( tst, "statfs(path)", arg1 ); |
| 2478 | must_be_writable( tst, "stat(buf)", arg2, sizeof(struct statfs) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2479 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2480 | if (!VG_(is_kerror)(res)) |
| 2481 | make_readable( arg2, sizeof(struct statfs) ); |
| 2482 | break; |
| 2483 | |
| 2484 | case __NR_symlink: /* syscall 83 */ |
| 2485 | /* int symlink(const char *oldpath, const char *newpath); */ |
| 2486 | if (VG_(clo_trace_syscalls)) |
| 2487 | VG_(printf)("symlink ( %p, %p )\n",arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2488 | must_be_readable_asciiz( tst, "symlink(oldpath)", arg1 ); |
| 2489 | must_be_readable_asciiz( tst, "symlink(newpath)", arg2 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2490 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2491 | break; |
| 2492 | |
| 2493 | # if defined(__NR_stat64) |
| 2494 | case __NR_stat64: /* syscall 195 */ |
| 2495 | /* int stat64(const char *file_name, struct stat64 *buf); */ |
| 2496 | if (VG_(clo_trace_syscalls)) |
| 2497 | VG_(printf)("stat64 ( %p, %p )\n",arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2498 | must_be_readable_asciiz( tst, "stat64(file_name)", arg1 ); |
| 2499 | must_be_writable( tst, "stat64(buf)", arg2, sizeof(struct stat64) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2500 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2501 | if (!VG_(is_kerror)(res)) |
| 2502 | make_readable( arg2, sizeof(struct stat64) ); |
| 2503 | break; |
| 2504 | # endif |
| 2505 | |
| 2506 | # if defined(__NR_fstat64) |
| 2507 | case __NR_fstat64: /* syscall 197 */ |
| 2508 | /* int fstat64(int filedes, struct stat64 *buf); */ |
| 2509 | if (VG_(clo_trace_syscalls)) |
| 2510 | VG_(printf)("fstat64 ( %d, %p )\n",arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2511 | must_be_writable( tst, "fstat64(buf)", arg2, sizeof(struct stat64) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2512 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2513 | if (!VG_(is_kerror)(res)) |
| 2514 | make_readable( arg2, sizeof(struct stat64) ); |
| 2515 | break; |
| 2516 | # endif |
| 2517 | |
| 2518 | case __NR_sysinfo: /* syscall 116 */ |
| 2519 | /* int sysinfo(struct sysinfo *info); */ |
| 2520 | if (VG_(clo_trace_syscalls)) |
| 2521 | VG_(printf)("sysinfo ( %p )\n",arg1); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2522 | must_be_writable( tst, "sysinfo(info)", arg1, sizeof(struct sysinfo) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2523 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2524 | if (!VG_(is_kerror)(res)) |
| 2525 | make_readable( arg1, sizeof(struct sysinfo) ); |
| 2526 | break; |
| 2527 | |
| 2528 | case __NR_time: /* syscall 13 */ |
| 2529 | /* time_t time(time_t *t); */ |
| 2530 | if (VG_(clo_trace_syscalls)) |
| 2531 | VG_(printf)("time ( %p )\n",arg1); |
| 2532 | if (arg1 != (UInt)NULL) { |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2533 | must_be_writable( tst, "time", arg1, sizeof(time_t) ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2534 | } |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2535 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2536 | if (!VG_(is_kerror)(res) && arg1 != (UInt)NULL) { |
| 2537 | make_readable( arg1, sizeof(time_t) ); |
| 2538 | } |
| 2539 | break; |
| 2540 | |
| 2541 | case __NR_times: /* syscall 43 */ |
| 2542 | /* clock_t times(struct tms *buf); */ |
| 2543 | if (VG_(clo_trace_syscalls)) |
| 2544 | VG_(printf)("times ( %p )\n",arg1); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2545 | must_be_writable( tst, "times(buf)", arg1, sizeof(struct tms) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2546 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2547 | if (!VG_(is_kerror)(res) && arg1 != (UInt)NULL) { |
| 2548 | make_readable( arg1, sizeof(struct tms) ); |
| 2549 | } |
| 2550 | break; |
| 2551 | |
| 2552 | case __NR_truncate: /* syscall 92 */ |
| 2553 | /* int truncate(const char *path, size_t length); */ |
| 2554 | if (VG_(clo_trace_syscalls)) |
| 2555 | VG_(printf)("truncate ( %p, %d )\n", arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2556 | must_be_readable_asciiz( tst, "truncate(path)", arg1 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2557 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2558 | break; |
| 2559 | |
| 2560 | case __NR_umask: /* syscall 60 */ |
| 2561 | /* mode_t umask(mode_t mask); */ |
| 2562 | if (VG_(clo_trace_syscalls)) |
| 2563 | VG_(printf)("umask ( %d )\n", arg1); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2564 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2565 | break; |
| 2566 | |
| 2567 | case __NR_unlink: /* syscall 10 */ |
| 2568 | /* int unlink(const char *pathname) */ |
| 2569 | if (VG_(clo_trace_syscalls)) |
| 2570 | VG_(printf)("ulink ( %p )\n",arg1); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2571 | must_be_readable_asciiz( tst, "unlink(pathname)", arg1 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2572 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2573 | break; |
| 2574 | |
| 2575 | case __NR_uname: /* syscall 122 */ |
| 2576 | /* int uname(struct utsname *buf); */ |
| 2577 | if (VG_(clo_trace_syscalls)) |
| 2578 | VG_(printf)("uname ( %p )\n",arg1); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2579 | must_be_writable( tst, "uname(buf)", arg1, sizeof(struct utsname) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2580 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2581 | if (!VG_(is_kerror)(res) && arg1 != (UInt)NULL) { |
| 2582 | make_readable( arg1, sizeof(struct utsname) ); |
| 2583 | } |
| 2584 | break; |
| 2585 | |
| 2586 | case __NR_utime: /* syscall 30 */ |
| 2587 | /* int utime(const char *filename, struct utimbuf *buf); */ |
| 2588 | if (VG_(clo_trace_syscalls)) |
| 2589 | VG_(printf)("utime ( %p, %p )\n", arg1,arg2); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2590 | must_be_readable_asciiz( tst, "utime(filename)", arg1 ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2591 | if (arg2 != (UInt)NULL) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2592 | must_be_readable( tst, "utime(buf)", arg2, |
| 2593 | sizeof(struct utimbuf) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2594 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2595 | break; |
| 2596 | |
| 2597 | case __NR_wait4: /* syscall 114 */ |
| 2598 | /* pid_t wait4(pid_t pid, int *status, int options, |
| 2599 | struct rusage *rusage) */ |
| 2600 | if (VG_(clo_trace_syscalls)) |
| 2601 | VG_(printf)("wait4 ( %d, %p, %d, %p )\n", |
| 2602 | arg1,arg2,arg3,arg4); |
| 2603 | if (arg2 != (Addr)NULL) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2604 | must_be_writable( tst, "wait4(status)", arg2, sizeof(int) ); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2605 | if (arg4 != (Addr)NULL) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2606 | must_be_writable( tst, "wait4(rusage)", arg4, |
| 2607 | sizeof(struct rusage) ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2608 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2609 | if (!VG_(is_kerror)(res)) { |
| 2610 | if (arg2 != (Addr)NULL) |
| 2611 | make_readable( arg2, sizeof(int) ); |
| 2612 | if (arg4 != (Addr)NULL) |
| 2613 | make_readable( arg4, sizeof(struct rusage) ); |
| 2614 | } |
| 2615 | break; |
| 2616 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2617 | case __NR_writev: { /* syscall 146 */ |
| 2618 | /* int writev(int fd, const struct iovec * vector, size_t count); */ |
| 2619 | UInt i; |
| 2620 | struct iovec * vec; |
| 2621 | if (VG_(clo_trace_syscalls)) |
| 2622 | VG_(printf)("writev ( %d, %p, %d )\n",arg1,arg2,arg3); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2623 | must_be_readable( tst, "writev(vector)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2624 | arg2, arg3 * sizeof(struct iovec) ); |
| 2625 | /* ToDo: don't do any of the following if the vector is invalid */ |
| 2626 | vec = (struct iovec *)arg2; |
| 2627 | for (i = 0; i < arg3; i++) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2628 | must_be_readable( tst, "writev(vector[...])", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2629 | (UInt)vec[i].iov_base,vec[i].iov_len ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2630 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2631 | break; |
| 2632 | } |
| 2633 | |
| 2634 | /*-------------------------- SIGNALS --------------------------*/ |
| 2635 | |
| 2636 | /* Normally set to 1, so that Valgrind's signal-simulation machinery |
| 2637 | is engaged. Sometimes useful to disable (set to 0), for |
| 2638 | debugging purposes, to make clients more deterministic. */ |
| 2639 | # define SIGNAL_SIMULATION 1 |
| 2640 | |
| 2641 | case __NR_rt_sigaction: |
| 2642 | case __NR_sigaction: |
| 2643 | /* int sigaction(int signum, struct k_sigaction *act, |
| 2644 | struct k_sigaction *oldact); */ |
| 2645 | if (VG_(clo_trace_syscalls)) |
| 2646 | VG_(printf)("sigaction ( %d, %p, %p )\n",arg1,arg2,arg3); |
| 2647 | if (arg2 != (UInt)NULL) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2648 | must_be_readable( tst, "sigaction(act)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2649 | arg2, sizeof(vki_ksigaction)); |
| 2650 | if (arg3 != (UInt)NULL) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2651 | must_be_writable( tst, "sigaction(oldact)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2652 | arg3, sizeof(vki_ksigaction)); |
| 2653 | /* We do this one ourselves! */ |
| 2654 | # if SIGNAL_SIMULATION |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2655 | VG_(do__NR_sigaction)(tid); |
| 2656 | res = tst->m_eax; |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2657 | # else |
| 2658 | /* debugging signals; when we don't handle them. */ |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2659 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2660 | # endif |
| 2661 | if (!VG_(is_kerror)(res) && res == 0 && arg3 != (UInt)NULL) |
| 2662 | make_readable( arg3, sizeof(vki_ksigaction)); |
| 2663 | break; |
| 2664 | |
| 2665 | case __NR_rt_sigprocmask: |
| 2666 | case __NR_sigprocmask: |
| 2667 | /* int sigprocmask(int how, k_sigset_t *set, |
| 2668 | k_sigset_t *oldset); */ |
| 2669 | if (VG_(clo_trace_syscalls)) |
| 2670 | VG_(printf)("sigprocmask ( %d, %p, %p )\n",arg1,arg2,arg3); |
| 2671 | if (arg2 != (UInt)NULL) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2672 | must_be_readable( tst, "sigprocmask(set)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2673 | arg2, sizeof(vki_ksigset_t)); |
| 2674 | if (arg3 != (UInt)NULL) |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2675 | must_be_writable( tst, "sigprocmask(oldset)", |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2676 | arg3, sizeof(vki_ksigset_t)); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2677 | KERNEL_DO_SYSCALL(tid,res); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2678 | if (!VG_(is_kerror)(res) && res == 0 && arg3 != (UInt)NULL) |
| 2679 | make_readable( arg3, sizeof(vki_ksigset_t)); |
| 2680 | # if SIGNAL_SIMULATION |
| 2681 | /* For the reason why both the kernel and Valgrind process |
| 2682 | sigprocmask, see the detailed comment at |
| 2683 | vg_do__NR_sigprocmask(). */ |
| 2684 | VG_(do__NR_sigprocmask) ( arg1 /*how*/, (vki_ksigset_t*) arg2 ); |
| 2685 | # endif |
| 2686 | break; |
| 2687 | |
| 2688 | default: |
| 2689 | VG_(message) |
| 2690 | (Vg_DebugMsg,"FATAL: unhandled syscall: %d",syscallno); |
| 2691 | VG_(message) |
| 2692 | (Vg_DebugMsg,"Do not panic. You may be able to fix this easily."); |
| 2693 | VG_(message) |
| 2694 | (Vg_DebugMsg,"Read the file README_MISSING_SYSCALL_OR_IOCTL."); |
| 2695 | VG_(unimplemented)("no wrapper for the above system call"); |
| 2696 | vg_assert(3+3 == 7); |
| 2697 | break; /*NOTREACHED*/ |
| 2698 | } |
| 2699 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2700 | /* { void zzzmemscan(void); zzzmemscan(); } */ |
| 2701 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2702 | if (! VG_(first_and_last_secondaries_look_plausible)) |
| 2703 | sane_before_call = False; |
| 2704 | |
| 2705 | if (sane_before_call && (!sane_after_call)) { |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2706 | VG_(message)(Vg_DebugMsg, "perform_assumed_nonblocking_syscall: "); |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2707 | VG_(message)(Vg_DebugMsg, |
| 2708 | "probable sanity check failure for syscall number %d\n", |
| 2709 | syscallno ); |
| 2710 | VG_(panic)("aborting due to the above ... bye!"); |
| 2711 | } |
| 2712 | |
| 2713 | VGP_POPCC; |
| 2714 | } |
| 2715 | |
| 2716 | |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2717 | |
| 2718 | /* Perform pre- and post- actions for a blocking syscall, but do not |
| 2719 | do the syscall itself. If res is NULL, the pre-syscall actions are |
| 2720 | to be performed. If res is non-NULL, the post-syscall actions are |
| 2721 | to be performed, and *res is assumed to hold the result of the |
| 2722 | syscall. This slightly strange scheme makes it impossible to |
| 2723 | mistakenly use the value of *res in the pre-syscall actions. |
| 2724 | |
| 2725 | This doesn't actually do the syscall itself, it is important to |
| 2726 | observe. |
| 2727 | |
| 2728 | Because %eax is used both for the syscall number before the call |
| 2729 | and the result value afterwards, we can't reliably use it to get |
| 2730 | the syscall number. So the caller has to pass it explicitly. |
| 2731 | */ |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2732 | void VG_(check_known_blocking_syscall) ( ThreadId tid, |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2733 | Int syscallno, |
| 2734 | Int* /*IN*/ res ) |
| 2735 | { |
| 2736 | Bool sane_before_post = True; |
| 2737 | Bool sane_after_post = True; |
| 2738 | ThreadState* tst = VG_(get_thread_state)( tid ); |
| 2739 | UInt arg1 = tst->m_ebx; |
| 2740 | UInt arg2 = tst->m_ecx; |
| 2741 | UInt arg3 = tst->m_edx; |
| 2742 | /* |
| 2743 | UInt arg4 = tst->m_esi; |
| 2744 | UInt arg5 = tst->m_edi; |
| 2745 | */ |
| 2746 | VGP_PUSHCC(VgpSyscall); |
| 2747 | |
| 2748 | if (res != NULL |
| 2749 | && ! VG_(first_and_last_secondaries_look_plausible)) |
| 2750 | sane_before_post = False; |
| 2751 | |
| 2752 | switch (syscallno) { |
| 2753 | |
| 2754 | case __NR_read: /* syscall 3 */ |
| 2755 | /* size_t read(int fd, void *buf, size_t count); */ |
| 2756 | if (res == NULL) { |
| 2757 | /* PRE */ |
| 2758 | if (VG_(clo_trace_syscalls)) |
| 2759 | VG_(printf)( |
| 2760 | "SYSCALL--PRE[%d,%d] read ( %d, %p, %d )\n", |
| 2761 | VG_(getpid)(), tid, |
| 2762 | arg1, arg2, arg3); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2763 | must_be_writable( tst, "read(buf)", arg2, arg3 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2764 | } else { |
| 2765 | /* POST */ |
| 2766 | if (VG_(clo_trace_syscalls)) |
| 2767 | VG_(printf)( |
| 2768 | "SYSCALL-POST[%d,%d] read ( %d, %p, %d ) --> %d\n", |
| 2769 | VG_(getpid)(), tid, |
| 2770 | arg1, arg2, arg3, *res); |
| 2771 | if (!VG_(is_kerror)(*res) && *res > 0) { |
| 2772 | make_readable( arg2, *res ); |
| 2773 | } |
| 2774 | } |
| 2775 | break; |
| 2776 | |
| 2777 | case __NR_write: /* syscall 4 */ |
| 2778 | /* size_t write(int fd, const void *buf, size_t count); */ |
| 2779 | if (res == NULL) { |
| 2780 | /* PRE */ |
| 2781 | if (VG_(clo_trace_syscalls)) |
| 2782 | VG_(printf)( |
| 2783 | "SYSCALL--PRE[%d,%d] write ( %d, %p, %d )\n", |
| 2784 | VG_(getpid)(), tid, |
| 2785 | arg1, arg2, arg3); |
sewardj | 8c82451 | 2002-04-14 04:16:48 +0000 | [diff] [blame] | 2786 | must_be_readable( tst, "write(buf)", arg2, arg3 ); |
sewardj | 2e93c50 | 2002-04-12 11:12:52 +0000 | [diff] [blame] | 2787 | } else { |
| 2788 | /* POST */ |
| 2789 | if (VG_(clo_trace_syscalls)) |
| 2790 | VG_(printf)( |
| 2791 | "SYSCALL-POST[%d,%d] write ( %d, %p, %d ) --> %d\n", |
| 2792 | VG_(getpid)(), tid, |
| 2793 | arg1, arg2, arg3, *res); |
| 2794 | } |
| 2795 | break; |
| 2796 | |
| 2797 | default: |
| 2798 | VG_(printf)("check_known_blocking_syscall: unexpected %d\n", |
| 2799 | syscallno); |
| 2800 | VG_(panic)("check_known_blocking_syscall"); |
| 2801 | /*NOTREACHED*/ |
| 2802 | break; |
| 2803 | } |
| 2804 | |
| 2805 | if (res != NULL) { /* only check after syscall */ |
| 2806 | if (! VG_(first_and_last_secondaries_look_plausible)) |
| 2807 | sane_after_post = False; |
| 2808 | |
| 2809 | if (sane_before_post && (!sane_after_post)) { |
| 2810 | VG_(message)(Vg_DebugMsg, "perform_known_blocking_syscall: "); |
| 2811 | VG_(message)(Vg_DebugMsg, |
| 2812 | "probable sanity check failure for syscall number %d\n", |
| 2813 | syscallno ); |
| 2814 | VG_(panic)("aborting due to the above ... bye!"); |
| 2815 | } |
| 2816 | } |
| 2817 | |
| 2818 | VGP_POPCC; |
| 2819 | } |
| 2820 | |
| 2821 | |
sewardj | de4a1d0 | 2002-03-22 01:27:54 +0000 | [diff] [blame] | 2822 | /*--------------------------------------------------------------------*/ |
| 2823 | /*--- end vg_syscall_mem.c ---*/ |
| 2824 | /*--------------------------------------------------------------------*/ |