| File: | obj-scan-build/i386/i386/mach_i386.server.c |
| Location: | line 97, column 2 |
| Description: | Value stored to 'msgh_simple' is never read |
| 1 | /* Module mach_i386 */ |
| 2 | |
| 3 | #ifndef _GNU_SOURCE1 |
| 4 | #define _GNU_SOURCE1 1 |
| 5 | #endif |
| 6 | |
| 7 | #define EXPORT_BOOLEAN |
| 8 | #include <mach/boolean.h> |
| 9 | #include <mach/kern_return.h> |
| 10 | #include <mach/message.h> |
| 11 | #include <mach/mig_errors.h> |
| 12 | #include <mach/mig_support.h> |
| 13 | #include <ipc/ipc_port.h> |
| 14 | |
| 15 | #ifndef mig_internalstatic |
| 16 | #define mig_internalstatic static |
| 17 | #endif |
| 18 | |
| 19 | #ifndef mig_external |
| 20 | #define mig_external |
| 21 | #endif |
| 22 | |
| 23 | #ifndef TypeCheck1 |
| 24 | #define TypeCheck1 1 |
| 25 | #endif |
| 26 | |
| 27 | #ifndef UseExternRCSId1 |
| 28 | #define UseExternRCSId1 1 |
| 29 | #endif |
| 30 | |
| 31 | #define BAD_TYPECHECK(type, check)({ union { mach_msg_type_t t; unsigned32_t w; } _t, _c; _t.t = *(type); _c.t = *(check); _t.w != _c.w; }) ({\ |
| 32 | union { mach_msg_type_t t; unsigned32_t w; } _t, _c;\ |
| 33 | _t.t = *(type); _c.t = *(check); _t.w != _c.w; }) |
| 34 | #define msgh_request_portmsgh_remote_port msgh_remote_port |
| 35 | #define MACH_MSGH_BITS_REQUEST(bits)((bits) & 0x000000ff) MACH_MSGH_BITS_REMOTE(bits)((bits) & 0x000000ff) |
| 36 | #define msgh_reply_portmsgh_local_port msgh_local_port |
| 37 | #define MACH_MSGH_BITS_REPLY(bits)(((bits) & 0x0000ff00) >> 8) MACH_MSGH_BITS_LOCAL(bits)(((bits) & 0x0000ff00) >> 8) |
| 38 | |
| 39 | #include <mach/std_types.h> |
| 40 | #include <kern/ipc_kobject.h> |
| 41 | #include <kern/ipc_tt.h> |
| 42 | #include <kern/ipc_host.h> |
| 43 | #include <kern/task.h> |
| 44 | #include <kern/thread.h> |
| 45 | #include <kern/host.h> |
| 46 | #include <kern/processor.h> |
| 47 | #include <vm/vm_object.h> |
| 48 | #include <vm/vm_map.h> |
| 49 | #include <ipc/ipc_space.h> |
| 50 | #include <mach/mach_types.h> |
| 51 | #include <mach/machine/mach_i386_types.h> |
| 52 | #include <machine/io_perm.h> |
| 53 | |
| 54 | /* Routine i386_set_ldt */ |
| 55 | mig_internalstatic void _Xi386_set_ldt |
| 56 | (mach_msg_header_t *InHeadP, mach_msg_header_t *OutHeadP) |
| 57 | { |
| 58 | typedef struct { |
| 59 | mach_msg_header_t Head; |
| 60 | mach_msg_type_t first_selectorType; |
| 61 | int first_selector; |
| 62 | mach_msg_type_long_t desc_listType; |
| 63 | descriptor_t desc_list[256]; |
| 64 | } Request; |
| 65 | |
| 66 | typedef struct { |
| 67 | mach_msg_header_t Head; |
| 68 | mach_msg_type_t RetCodeType; |
| 69 | kern_return_t RetCode; |
| 70 | } Reply; |
| 71 | |
| 72 | Request *In0P = (Request *) InHeadP; |
| 73 | Reply *OutP = (Reply *) OutHeadP; |
| 74 | mig_external kern_return_t i386_set_ldt |
| 75 | (thread_t target_thread, int first_selector, descriptor_list_t desc_list, mach_msg_type_number_t desc_listCnt, boolean_t desc_listSCopy); |
| 76 | |
| 77 | #if TypeCheck1 |
| 78 | boolean_t msgh_simple; |
| 79 | #endif /* TypeCheck */ |
| 80 | |
| 81 | unsigned int msgh_size; |
| 82 | |
| 83 | const mach_msg_type_t first_selectorCheck = { |
| 84 | /* msgt_name = */ 2, |
| 85 | /* msgt_size = */ 32, |
| 86 | /* msgt_number = */ 1, |
| 87 | /* msgt_inline = */ TRUE((boolean_t) 1), |
| 88 | /* msgt_longform = */ FALSE((boolean_t) 0), |
| 89 | /* msgt_deallocate = */ FALSE((boolean_t) 0), |
| 90 | /* msgt_unused = */ 0 |
| 91 | }; |
| 92 | |
| 93 | thread_t target_thread; |
| 94 | |
| 95 | #if TypeCheck1 |
| 96 | msgh_size = In0P->Head.msgh_size; |
| 97 | msgh_simple = !(In0P->Head.msgh_bits & MACH_MSGH_BITS_COMPLEX0x80000000U); |
Value stored to 'msgh_simple' is never read | |
| 98 | if ((msgh_size < 44)) |
| 99 | { OutP->RetCode = MIG_BAD_ARGUMENTS-304; return; } |
| 100 | #endif /* TypeCheck */ |
| 101 | |
| 102 | #if TypeCheck1 |
| 103 | if (BAD_TYPECHECK(&In0P->first_selectorType, &first_selectorCheck)({ union { mach_msg_type_t t; unsigned32_t w; } _t, _c; _t.t = *(&In0P->first_selectorType); _c.t = *(&first_selectorCheck ); _t.w != _c.w; })) |
| 104 | { OutP->RetCode = MIG_BAD_ARGUMENTS-304; return; } |
| 105 | #endif /* TypeCheck */ |
| 106 | |
| 107 | #if TypeCheck1 |
| 108 | if ((In0P->desc_listType.msgtl_header.msgt_longform != TRUE((boolean_t) 1)) || |
| 109 | (In0P->desc_listType.msgtl_name != 2) || |
| 110 | (In0P->desc_listType.msgtl_size != 32)) |
| 111 | { OutP->RetCode = MIG_BAD_ARGUMENTS-304; return; } |
| 112 | #endif /* TypeCheck */ |
| 113 | |
| 114 | #if TypeCheck1 |
| 115 | if (msgh_size != 44 + ((In0P->desc_listType.msgtl_header.msgt_inline) ? 4 * In0P->desc_listType.msgtl_number : sizeof(descriptor_t *))) |
| 116 | { OutP->RetCode = MIG_BAD_ARGUMENTS-304; return; } |
| 117 | #endif /* TypeCheck */ |
| 118 | |
| 119 | target_thread = convert_port_to_thread((ipc_port_t) In0P->Head.msgh_request_portmsgh_remote_port); |
| 120 | |
| 121 | OutP->RetCode = i386_set_ldt(target_thread, In0P->first_selector, (In0P->desc_listType.msgtl_header.msgt_inline) ? In0P->desc_list : *((descriptor_t **)In0P->desc_list), In0P->desc_listType.msgtl_number / 2, In0P->desc_listType.msgtl_header.msgt_inline); |
| 122 | thread_deallocate(target_thread); |
| 123 | } |
| 124 | |
| 125 | /* Routine i386_get_ldt */ |
| 126 | mig_internalstatic void _Xi386_get_ldt |
| 127 | (mach_msg_header_t *InHeadP, mach_msg_header_t *OutHeadP) |
| 128 | { |
| 129 | typedef struct { |
| 130 | mach_msg_header_t Head; |
| 131 | mach_msg_type_t first_selectorType; |
| 132 | int first_selector; |
| 133 | mach_msg_type_t selector_countType; |
| 134 | int selector_count; |
| 135 | } Request; |
| 136 | |
| 137 | typedef struct { |
| 138 | mach_msg_header_t Head; |
| 139 | mach_msg_type_t RetCodeType; |
| 140 | kern_return_t RetCode; |
| 141 | mach_msg_type_long_t desc_listType; |
| 142 | descriptor_t desc_list[256]; |
| 143 | } Reply; |
| 144 | |
| 145 | Request *In0P = (Request *) InHeadP; |
| 146 | Reply *OutP = (Reply *) OutHeadP; |
| 147 | mig_external kern_return_t i386_get_ldt |
| 148 | (thread_t target_thread, int first_selector, int selector_count, descriptor_list_t *desc_list, mach_msg_type_number_t *desc_listCnt); |
| 149 | |
| 150 | boolean_t msgh_simple; |
| 151 | const mach_msg_type_t first_selectorCheck = { |
| 152 | /* msgt_name = */ 2, |
| 153 | /* msgt_size = */ 32, |
| 154 | /* msgt_number = */ 1, |
| 155 | /* msgt_inline = */ TRUE((boolean_t) 1), |
| 156 | /* msgt_longform = */ FALSE((boolean_t) 0), |
| 157 | /* msgt_deallocate = */ FALSE((boolean_t) 0), |
| 158 | /* msgt_unused = */ 0 |
| 159 | }; |
| 160 | |
| 161 | const mach_msg_type_t selector_countCheck = { |
| 162 | /* msgt_name = */ 2, |
| 163 | /* msgt_size = */ 32, |
| 164 | /* msgt_number = */ 1, |
| 165 | /* msgt_inline = */ TRUE((boolean_t) 1), |
| 166 | /* msgt_longform = */ FALSE((boolean_t) 0), |
| 167 | /* msgt_deallocate = */ FALSE((boolean_t) 0), |
| 168 | /* msgt_unused = */ 0 |
| 169 | }; |
| 170 | |
| 171 | const mach_msg_type_long_t desc_listType = { |
| 172 | { |
| 173 | /* msgt_name = */ 0, |
| 174 | /* msgt_size = */ 0, |
| 175 | /* msgt_number = */ 0, |
| 176 | /* msgt_inline = */ TRUE((boolean_t) 1), |
| 177 | /* msgt_longform = */ TRUE((boolean_t) 1), |
| 178 | /* msgt_deallocate = */ FALSE((boolean_t) 0), |
| 179 | /* msgt_unused = */ 0 |
| 180 | }, |
| 181 | /* msgtl_name = */ 2, |
| 182 | /* msgtl_size = */ 32, |
| 183 | /* msgtl_number = */ 512, |
| 184 | }; |
| 185 | |
| 186 | thread_t target_thread; |
| 187 | mach_msg_type_number_t desc_listCnt; |
| 188 | |
| 189 | descriptor_t *desc_listP; |
| 190 | |
| 191 | #if TypeCheck1 |
| 192 | if ((In0P->Head.msgh_size != 40) || |
| 193 | (In0P->Head.msgh_bits & MACH_MSGH_BITS_COMPLEX0x80000000U)) |
| 194 | { OutP->RetCode = MIG_BAD_ARGUMENTS-304; return; } |
| 195 | #endif /* TypeCheck */ |
| 196 | |
| 197 | #if TypeCheck1 |
| 198 | if (BAD_TYPECHECK(&In0P->first_selectorType, &first_selectorCheck)({ union { mach_msg_type_t t; unsigned32_t w; } _t, _c; _t.t = *(&In0P->first_selectorType); _c.t = *(&first_selectorCheck ); _t.w != _c.w; })) |
| 199 | { OutP->RetCode = MIG_BAD_ARGUMENTS-304; return; } |
| 200 | #endif /* TypeCheck */ |
| 201 | |
| 202 | #if TypeCheck1 |
| 203 | if (BAD_TYPECHECK(&In0P->selector_countType, &selector_countCheck)({ union { mach_msg_type_t t; unsigned32_t w; } _t, _c; _t.t = *(&In0P->selector_countType); _c.t = *(&selector_countCheck ); _t.w != _c.w; })) |
| 204 | { OutP->RetCode = MIG_BAD_ARGUMENTS-304; return; } |
| 205 | #endif /* TypeCheck */ |
| 206 | |
| 207 | target_thread = convert_port_to_thread((ipc_port_t) In0P->Head.msgh_request_portmsgh_remote_port); |
| 208 | |
| 209 | desc_listP = OutP->desc_list; |
| 210 | desc_listCnt = 256; |
| 211 | |
| 212 | OutP->RetCode = i386_get_ldt(target_thread, In0P->first_selector, In0P->selector_count, &desc_listP, &desc_listCnt); |
| 213 | thread_deallocate(target_thread); |
| 214 | if (OutP->RetCode != KERN_SUCCESS0) |
| 215 | return; |
| 216 | |
| 217 | msgh_simple = TRUE((boolean_t) 1); |
| 218 | |
| 219 | OutP->desc_listType = desc_listType; |
| 220 | if (desc_listP != OutP->desc_list) { |
| 221 | OutP->desc_listType.msgtl_header.msgt_inline = FALSE((boolean_t) 0); |
| 222 | *((descriptor_t **)OutP->desc_list) = desc_listP; |
| 223 | msgh_simple = FALSE((boolean_t) 0); |
| 224 | } |
| 225 | |
| 226 | OutP->desc_listType.msgtl_number = 2 * desc_listCnt; |
| 227 | OutP->Head.msgh_size = 44 + ((OutP->desc_listType.msgtl_header.msgt_inline) ? 8 * desc_listCnt : sizeof(descriptor_t *)); |
| 228 | |
| 229 | if (!msgh_simple) |
| 230 | OutP->Head.msgh_bits |= MACH_MSGH_BITS_COMPLEX0x80000000U; |
| 231 | } |
| 232 | |
| 233 | /* Routine i386_io_perm_create */ |
| 234 | mig_internalstatic void _Xi386_io_perm_create |
| 235 | (mach_msg_header_t *InHeadP, mach_msg_header_t *OutHeadP) |
| 236 | { |
| 237 | typedef struct { |
| 238 | mach_msg_header_t Head; |
| 239 | mach_msg_type_t fromType; |
| 240 | io_port_t from; |
| 241 | char fromPad[2]; |
| 242 | mach_msg_type_t toType; |
| 243 | io_port_t to; |
| 244 | char toPad[2]; |
| 245 | } Request; |
| 246 | |
| 247 | typedef struct { |
| 248 | mach_msg_header_t Head; |
| 249 | mach_msg_type_t RetCodeType; |
| 250 | kern_return_t RetCode; |
| 251 | mach_msg_type_t io_permType; |
| 252 | ipc_port_t io_perm; |
| 253 | } Reply; |
| 254 | |
| 255 | Request *In0P = (Request *) InHeadP; |
| 256 | Reply *OutP = (Reply *) OutHeadP; |
| 257 | mig_external kern_return_t i386_io_perm_create |
| 258 | (ipc_port_t master_port, io_port_t from, io_port_t to, io_perm_t *io_perm); |
| 259 | |
| 260 | const mach_msg_type_t fromCheck = { |
| 261 | /* msgt_name = */ 1, |
| 262 | /* msgt_size = */ 16, |
| 263 | /* msgt_number = */ 1, |
| 264 | /* msgt_inline = */ TRUE((boolean_t) 1), |
| 265 | /* msgt_longform = */ FALSE((boolean_t) 0), |
| 266 | /* msgt_deallocate = */ FALSE((boolean_t) 0), |
| 267 | /* msgt_unused = */ 0 |
| 268 | }; |
| 269 | |
| 270 | const mach_msg_type_t toCheck = { |
| 271 | /* msgt_name = */ 1, |
| 272 | /* msgt_size = */ 16, |
| 273 | /* msgt_number = */ 1, |
| 274 | /* msgt_inline = */ TRUE((boolean_t) 1), |
| 275 | /* msgt_longform = */ FALSE((boolean_t) 0), |
| 276 | /* msgt_deallocate = */ FALSE((boolean_t) 0), |
| 277 | /* msgt_unused = */ 0 |
| 278 | }; |
| 279 | |
| 280 | const mach_msg_type_t io_permType = { |
| 281 | /* msgt_name = */ 17, |
| 282 | /* msgt_size = */ 32, |
| 283 | /* msgt_number = */ 1, |
| 284 | /* msgt_inline = */ TRUE((boolean_t) 1), |
| 285 | /* msgt_longform = */ FALSE((boolean_t) 0), |
| 286 | /* msgt_deallocate = */ FALSE((boolean_t) 0), |
| 287 | /* msgt_unused = */ 0 |
| 288 | }; |
| 289 | |
| 290 | io_perm_t io_perm; |
| 291 | |
| 292 | #if TypeCheck1 |
| 293 | if ((In0P->Head.msgh_size != 40) || |
| 294 | (In0P->Head.msgh_bits & MACH_MSGH_BITS_COMPLEX0x80000000U)) |
| 295 | { OutP->RetCode = MIG_BAD_ARGUMENTS-304; return; } |
| 296 | #endif /* TypeCheck */ |
| 297 | |
| 298 | #if TypeCheck1 |
| 299 | if (BAD_TYPECHECK(&In0P->fromType, &fromCheck)({ union { mach_msg_type_t t; unsigned32_t w; } _t, _c; _t.t = *(&In0P->fromType); _c.t = *(&fromCheck); _t.w != _c.w; })) |
| 300 | { OutP->RetCode = MIG_BAD_ARGUMENTS-304; return; } |
| 301 | #endif /* TypeCheck */ |
| 302 | |
| 303 | #if TypeCheck1 |
| 304 | if (BAD_TYPECHECK(&In0P->toType, &toCheck)({ union { mach_msg_type_t t; unsigned32_t w; } _t, _c; _t.t = *(&In0P->toType); _c.t = *(&toCheck); _t.w != _c. w; })) |
| 305 | { OutP->RetCode = MIG_BAD_ARGUMENTS-304; return; } |
| 306 | #endif /* TypeCheck */ |
| 307 | |
| 308 | OutP->RetCode = i386_io_perm_create((ipc_port_t) In0P->Head.msgh_request_portmsgh_remote_port, In0P->from, In0P->to, &io_perm); |
| 309 | if (OutP->RetCode != KERN_SUCCESS0) |
| 310 | return; |
| 311 | |
| 312 | OutP->Head.msgh_bits |= MACH_MSGH_BITS_COMPLEX0x80000000U; |
| 313 | OutP->Head.msgh_size = 40; |
| 314 | |
| 315 | OutP->io_permType = io_permType; |
| 316 | |
| 317 | OutP->io_perm = convert_io_perm_to_port(io_perm); |
| 318 | } |
| 319 | |
| 320 | /* Routine i386_io_perm_modify */ |
| 321 | mig_internalstatic void _Xi386_io_perm_modify |
| 322 | (mach_msg_header_t *InHeadP, mach_msg_header_t *OutHeadP) |
| 323 | { |
| 324 | typedef struct { |
| 325 | mach_msg_header_t Head; |
| 326 | mach_msg_type_t io_permType; |
| 327 | ipc_port_t io_perm; |
| 328 | mach_msg_type_t enableType; |
| 329 | boolean_t enable; |
| 330 | } Request; |
| 331 | |
| 332 | typedef struct { |
| 333 | mach_msg_header_t Head; |
| 334 | mach_msg_type_t RetCodeType; |
| 335 | kern_return_t RetCode; |
| 336 | } Reply; |
| 337 | |
| 338 | Request *In0P = (Request *) InHeadP; |
| 339 | Reply *OutP = (Reply *) OutHeadP; |
| 340 | mig_external kern_return_t i386_io_perm_modify |
| 341 | (task_t target_task, io_perm_t io_perm, boolean_t enable); |
| 342 | |
| 343 | const mach_msg_type_t enableCheck = { |
| 344 | /* msgt_name = */ 0, |
| 345 | /* msgt_size = */ 32, |
| 346 | /* msgt_number = */ 1, |
| 347 | /* msgt_inline = */ TRUE((boolean_t) 1), |
| 348 | /* msgt_longform = */ FALSE((boolean_t) 0), |
| 349 | /* msgt_deallocate = */ FALSE((boolean_t) 0), |
| 350 | /* msgt_unused = */ 0 |
| 351 | }; |
| 352 | |
| 353 | task_t target_task; |
| 354 | |
| 355 | #if TypeCheck1 |
| 356 | if ((In0P->Head.msgh_size != 40) || |
| 357 | !(In0P->Head.msgh_bits & MACH_MSGH_BITS_COMPLEX0x80000000U)) |
| 358 | { OutP->RetCode = MIG_BAD_ARGUMENTS-304; return; } |
| 359 | #endif /* TypeCheck */ |
| 360 | |
| 361 | #if TypeCheck1 |
| 362 | if ((In0P->io_permType.msgt_inline != TRUE((boolean_t) 1)) || |
| 363 | (In0P->io_permType.msgt_longform != FALSE((boolean_t) 0)) || |
| 364 | (In0P->io_permType.msgt_name != 17) || |
| 365 | (In0P->io_permType.msgt_number != 1) || |
| 366 | (In0P->io_permType.msgt_size != 32)) |
| 367 | { OutP->RetCode = MIG_BAD_ARGUMENTS-304; return; } |
| 368 | #endif /* TypeCheck */ |
| 369 | |
| 370 | #if TypeCheck1 |
| 371 | if (BAD_TYPECHECK(&In0P->enableType, &enableCheck)({ union { mach_msg_type_t t; unsigned32_t w; } _t, _c; _t.t = *(&In0P->enableType); _c.t = *(&enableCheck); _t. w != _c.w; })) |
| 372 | { OutP->RetCode = MIG_BAD_ARGUMENTS-304; return; } |
| 373 | #endif /* TypeCheck */ |
| 374 | |
| 375 | target_task = convert_port_to_task((ipc_port_t) In0P->Head.msgh_request_portmsgh_remote_port); |
| 376 | |
| 377 | OutP->RetCode = i386_io_perm_modify(target_task, convert_port_to_io_perm(In0P->io_perm), In0P->enable); |
| 378 | task_deallocate(target_task); |
| 379 | if (OutP->RetCode != KERN_SUCCESS0) |
| 380 | return; |
| 381 | |
| 382 | if (IP_VALID(In0P->io_perm)(((&(In0P->io_perm)->ip_target.ipt_object) != ((ipc_object_t ) 0)) && ((&(In0P->io_perm)->ip_target.ipt_object ) != ((ipc_object_t) -1)))) |
| 383 | ipc_port_release_send(In0P->io_perm); |
| 384 | } |
| 385 | |
| 386 | /* Routine i386_set_gdt */ |
| 387 | mig_internalstatic void _Xi386_set_gdt |
| 388 | (mach_msg_header_t *InHeadP, mach_msg_header_t *OutHeadP) |
| 389 | { |
| 390 | typedef struct { |
| 391 | mach_msg_header_t Head; |
| 392 | mach_msg_type_t selectorType; |
| 393 | int selector; |
| 394 | mach_msg_type_t descType; |
| 395 | descriptor_t desc; |
| 396 | } Request; |
| 397 | |
| 398 | typedef struct { |
| 399 | mach_msg_header_t Head; |
| 400 | mach_msg_type_t RetCodeType; |
| 401 | kern_return_t RetCode; |
| 402 | mach_msg_type_t selectorType; |
| 403 | int selector; |
| 404 | } Reply; |
| 405 | |
| 406 | Request *In0P = (Request *) InHeadP; |
| 407 | Reply *OutP = (Reply *) OutHeadP; |
| 408 | mig_external kern_return_t i386_set_gdt |
| 409 | (thread_t target_thread, int *selector, descriptor_t desc); |
| 410 | |
| 411 | const mach_msg_type_t selectorCheck = { |
| 412 | /* msgt_name = */ 2, |
| 413 | /* msgt_size = */ 32, |
| 414 | /* msgt_number = */ 1, |
| 415 | /* msgt_inline = */ TRUE((boolean_t) 1), |
| 416 | /* msgt_longform = */ FALSE((boolean_t) 0), |
| 417 | /* msgt_deallocate = */ FALSE((boolean_t) 0), |
| 418 | /* msgt_unused = */ 0 |
| 419 | }; |
| 420 | |
| 421 | const mach_msg_type_t descCheck = { |
| 422 | /* msgt_name = */ 2, |
| 423 | /* msgt_size = */ 32, |
| 424 | /* msgt_number = */ 2, |
| 425 | /* msgt_inline = */ TRUE((boolean_t) 1), |
| 426 | /* msgt_longform = */ FALSE((boolean_t) 0), |
| 427 | /* msgt_deallocate = */ FALSE((boolean_t) 0), |
| 428 | /* msgt_unused = */ 0 |
| 429 | }; |
| 430 | |
| 431 | const mach_msg_type_t selectorType = { |
| 432 | /* msgt_name = */ 2, |
| 433 | /* msgt_size = */ 32, |
| 434 | /* msgt_number = */ 1, |
| 435 | /* msgt_inline = */ TRUE((boolean_t) 1), |
| 436 | /* msgt_longform = */ FALSE((boolean_t) 0), |
| 437 | /* msgt_deallocate = */ FALSE((boolean_t) 0), |
| 438 | /* msgt_unused = */ 0 |
| 439 | }; |
| 440 | |
| 441 | thread_t target_thread; |
| 442 | |
| 443 | #if TypeCheck1 |
| 444 | if ((In0P->Head.msgh_size != 44) || |
| 445 | (In0P->Head.msgh_bits & MACH_MSGH_BITS_COMPLEX0x80000000U)) |
| 446 | { OutP->RetCode = MIG_BAD_ARGUMENTS-304; return; } |
| 447 | #endif /* TypeCheck */ |
| 448 | |
| 449 | #if TypeCheck1 |
| 450 | if (BAD_TYPECHECK(&In0P->selectorType, &selectorCheck)({ union { mach_msg_type_t t; unsigned32_t w; } _t, _c; _t.t = *(&In0P->selectorType); _c.t = *(&selectorCheck); _t.w != _c.w; })) |
| 451 | { OutP->RetCode = MIG_BAD_ARGUMENTS-304; return; } |
| 452 | #endif /* TypeCheck */ |
| 453 | |
| 454 | #if TypeCheck1 |
| 455 | if (BAD_TYPECHECK(&In0P->descType, &descCheck)({ union { mach_msg_type_t t; unsigned32_t w; } _t, _c; _t.t = *(&In0P->descType); _c.t = *(&descCheck); _t.w != _c.w; })) |
| 456 | { OutP->RetCode = MIG_BAD_ARGUMENTS-304; return; } |
| 457 | #endif /* TypeCheck */ |
| 458 | |
| 459 | target_thread = convert_port_to_thread((ipc_port_t) In0P->Head.msgh_request_portmsgh_remote_port); |
| 460 | |
| 461 | OutP->RetCode = i386_set_gdt(target_thread, &In0P->selector, In0P->desc); |
| 462 | thread_deallocate(target_thread); |
| 463 | if (OutP->RetCode != KERN_SUCCESS0) |
| 464 | return; |
| 465 | |
| 466 | OutP->Head.msgh_size = 40; |
| 467 | |
| 468 | OutP->selectorType = selectorType; |
| 469 | |
| 470 | OutP->selector = In0P->selector; |
| 471 | } |
| 472 | |
| 473 | /* Routine i386_get_gdt */ |
| 474 | mig_internalstatic void _Xi386_get_gdt |
| 475 | (mach_msg_header_t *InHeadP, mach_msg_header_t *OutHeadP) |
| 476 | { |
| 477 | typedef struct { |
| 478 | mach_msg_header_t Head; |
| 479 | mach_msg_type_t selectorType; |
| 480 | int selector; |
| 481 | } Request; |
| 482 | |
| 483 | typedef struct { |
| 484 | mach_msg_header_t Head; |
| 485 | mach_msg_type_t RetCodeType; |
| 486 | kern_return_t RetCode; |
| 487 | mach_msg_type_t descType; |
| 488 | descriptor_t desc; |
| 489 | } Reply; |
| 490 | |
| 491 | Request *In0P = (Request *) InHeadP; |
| 492 | Reply *OutP = (Reply *) OutHeadP; |
| 493 | mig_external kern_return_t i386_get_gdt |
| 494 | (thread_t target_thread, int selector, descriptor_t *desc); |
| 495 | |
| 496 | const mach_msg_type_t selectorCheck = { |
| 497 | /* msgt_name = */ 2, |
| 498 | /* msgt_size = */ 32, |
| 499 | /* msgt_number = */ 1, |
| 500 | /* msgt_inline = */ TRUE((boolean_t) 1), |
| 501 | /* msgt_longform = */ FALSE((boolean_t) 0), |
| 502 | /* msgt_deallocate = */ FALSE((boolean_t) 0), |
| 503 | /* msgt_unused = */ 0 |
| 504 | }; |
| 505 | |
| 506 | const mach_msg_type_t descType = { |
| 507 | /* msgt_name = */ 2, |
| 508 | /* msgt_size = */ 32, |
| 509 | /* msgt_number = */ 2, |
| 510 | /* msgt_inline = */ TRUE((boolean_t) 1), |
| 511 | /* msgt_longform = */ FALSE((boolean_t) 0), |
| 512 | /* msgt_deallocate = */ FALSE((boolean_t) 0), |
| 513 | /* msgt_unused = */ 0 |
| 514 | }; |
| 515 | |
| 516 | thread_t target_thread; |
| 517 | |
| 518 | #if TypeCheck1 |
| 519 | if ((In0P->Head.msgh_size != 32) || |
| 520 | (In0P->Head.msgh_bits & MACH_MSGH_BITS_COMPLEX0x80000000U)) |
| 521 | { OutP->RetCode = MIG_BAD_ARGUMENTS-304; return; } |
| 522 | #endif /* TypeCheck */ |
| 523 | |
| 524 | #if TypeCheck1 |
| 525 | if (BAD_TYPECHECK(&In0P->selectorType, &selectorCheck)({ union { mach_msg_type_t t; unsigned32_t w; } _t, _c; _t.t = *(&In0P->selectorType); _c.t = *(&selectorCheck); _t.w != _c.w; })) |
| 526 | { OutP->RetCode = MIG_BAD_ARGUMENTS-304; return; } |
| 527 | #endif /* TypeCheck */ |
| 528 | |
| 529 | target_thread = convert_port_to_thread((ipc_port_t) In0P->Head.msgh_request_portmsgh_remote_port); |
| 530 | |
| 531 | OutP->RetCode = i386_get_gdt(target_thread, In0P->selector, &OutP->desc); |
| 532 | thread_deallocate(target_thread); |
| 533 | if (OutP->RetCode != KERN_SUCCESS0) |
| 534 | return; |
| 535 | |
| 536 | OutP->Head.msgh_size = 44; |
| 537 | |
| 538 | OutP->descType = descType; |
| 539 | } |
| 540 | |
| 541 | static mig_routine_t mach_i386_server_routines[] = { |
| 542 | 0, |
| 543 | 0, |
| 544 | 0, |
| 545 | _Xi386_set_ldt, |
| 546 | _Xi386_get_ldt, |
| 547 | _Xi386_io_perm_create, |
| 548 | _Xi386_io_perm_modify, |
| 549 | _Xi386_set_gdt, |
| 550 | _Xi386_get_gdt, |
| 551 | }; |
| 552 | |
| 553 | mig_external boolean_t mach_i386_server |
| 554 | (mach_msg_header_t *InHeadP, mach_msg_header_t *OutHeadP) |
| 555 | { |
| 556 | mach_msg_header_t *InP = InHeadP; |
| 557 | mig_reply_header_t *OutP = (mig_reply_header_t *) OutHeadP; |
| 558 | |
| 559 | const mach_msg_type_t RetCodeType = { |
| 560 | /* msgt_name = */ MACH_MSG_TYPE_INTEGER_322, |
| 561 | /* msgt_size = */ 32, |
| 562 | /* msgt_number = */ 1, |
| 563 | /* msgt_inline = */ TRUE((boolean_t) 1), |
| 564 | /* msgt_longform = */ FALSE((boolean_t) 0), |
| 565 | /* msgt_deallocate = */ FALSE((boolean_t) 0), |
| 566 | /* msgt_unused = */ 0 |
| 567 | }; |
| 568 | |
| 569 | mig_routine_t routine; |
| 570 | |
| 571 | OutP->Head.msgh_bits = MACH_MSGH_BITS(MACH_MSGH_BITS_REPLY(InP->msgh_bits), 0)(((((InP->msgh_bits) & 0x0000ff00) >> 8)) | ((0) << 8)); |
| 572 | OutP->Head.msgh_size = sizeof *OutP; |
| 573 | OutP->Head.msgh_remote_port = InP->msgh_reply_portmsgh_local_port; |
| 574 | OutP->Head.msgh_local_port = MACH_PORT_NULL((mach_port_t) 0); |
| 575 | OutP->Head.msgh_seqno = 0; |
| 576 | OutP->Head.msgh_id = InP->msgh_id + 100; |
| 577 | |
| 578 | OutP->RetCodeType = RetCodeType; |
| 579 | |
| 580 | if ((InP->msgh_id > 3808) || (InP->msgh_id < 3800) || |
| 581 | ((routine = mach_i386_server_routines[InP->msgh_id - 3800]) == 0)) { |
| 582 | OutP->RetCode = MIG_BAD_ID-303; |
| 583 | return FALSE((boolean_t) 0); |
| 584 | } |
| 585 | (*routine) (InP, &OutP->Head); |
| 586 | return TRUE((boolean_t) 1); |
| 587 | } |
| 588 | |
| 589 | mig_external mig_routine_t mach_i386_server_routine |
| 590 | (const mach_msg_header_t *InHeadP) |
| 591 | { |
| 592 | int msgh_id; |
| 593 | |
| 594 | msgh_id = InHeadP->msgh_id - 3800; |
| 595 | |
| 596 | if ((msgh_id > 8) || (msgh_id < 0)) |
| 597 | return 0; |
| 598 | |
| 599 | return mach_i386_server_routines[msgh_id]; |
| 600 | } |
| 601 |