| /* |
| * Unit test suite for ntdll exceptions |
| * |
| * Copyright 2005 Alexandre Julliard |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| |
| #include <stdarg.h> |
| |
| #ifndef _WIN32_WINNT |
| #define _WIN32_WINNT 0x500 /* For NTSTATUS */ |
| #endif |
| |
| #include "ntstatus.h" |
| #define WIN32_NO_STATUS |
| #include "windef.h" |
| #include "winbase.h" |
| #include "winnt.h" |
| #include "winreg.h" |
| #include "winternl.h" |
| #include "excpt.h" |
| #include "wine/test.h" |
| |
| #ifdef __i386__ |
| |
| static struct _TEB * (WINAPI *pNtCurrentTeb)(void); |
| |
| /* Test various instruction combinations that cause a protection fault on the i386, |
| * and check what the resulting exception looks like. |
| */ |
| |
| static const struct exception |
| { |
| BYTE code[18]; /* asm code */ |
| BYTE offset; /* offset of faulting instruction */ |
| BYTE length; /* length of faulting instruction */ |
| NTSTATUS status; /* expected status code */ |
| DWORD nb_params; /* expected number of parameters */ |
| DWORD params[4]; /* expected parameters */ |
| } exceptions[] = |
| { |
| /* test some privileged instructions */ |
| { { 0xfb, 0xc3 }, /* sti; ret */ |
| 0, 1, STATUS_PRIVILEGED_INSTRUCTION, 0 }, |
| { { 0x6c, 0xc3 }, /* insb (%dx); ret */ |
| 0, 1, STATUS_PRIVILEGED_INSTRUCTION, 0 }, |
| { { 0x6d, 0xc3 }, /* insl (%dx); ret */ |
| 0, 1, STATUS_PRIVILEGED_INSTRUCTION, 0 }, |
| { { 0x6e, 0xc3 }, /* outsb (%dx); ret */ |
| 0, 1, STATUS_PRIVILEGED_INSTRUCTION, 0 }, |
| { { 0x6f, 0xc3 }, /* outsl (%dx); ret */ |
| 0, 1, STATUS_PRIVILEGED_INSTRUCTION, 0 }, |
| { { 0xe4, 0x11, 0xc3 }, /* inb $0x11,%al; ret */ |
| 0, 2, STATUS_PRIVILEGED_INSTRUCTION, 0 }, |
| { { 0xe5, 0x11, 0xc3 }, /* inl $0x11,%eax; ret */ |
| 0, 2, STATUS_PRIVILEGED_INSTRUCTION, 0 }, |
| { { 0xe6, 0x11, 0xc3 }, /* outb %al,$0x11; ret */ |
| 0, 2, STATUS_PRIVILEGED_INSTRUCTION, 0 }, |
| { { 0xe7, 0x11, 0xc3 }, /* outl %eax,$0x11; ret */ |
| 0, 2, STATUS_PRIVILEGED_INSTRUCTION, 0 }, |
| { { 0xed, 0xc3 }, /* inl (%dx),%eax; ret */ |
| 0, 1, STATUS_PRIVILEGED_INSTRUCTION, 0 }, |
| { { 0xee, 0xc3 }, /* outb %al,(%dx); ret */ |
| 0, 1, STATUS_PRIVILEGED_INSTRUCTION, 0 }, |
| { { 0xef, 0xc3 }, /* outl %eax,(%dx); ret */ |
| 0, 1, STATUS_PRIVILEGED_INSTRUCTION, 0 }, |
| { { 0xf4, 0xc3 }, /* hlt; ret */ |
| 0, 1, STATUS_PRIVILEGED_INSTRUCTION, 0 }, |
| { { 0xfa, 0xc3 }, /* cli; ret */ |
| 0, 1, STATUS_PRIVILEGED_INSTRUCTION, 0 }, |
| |
| /* test long jump to invalid selector */ |
| { { 0xea, 0, 0, 0, 0, 0, 0, 0xc3 }, /* ljmp $0,$0; ret */ |
| 0, 7, STATUS_ACCESS_VIOLATION, 2, { 0, 0xffffffff } }, |
| |
| /* test iret to invalid selector */ |
| { { 0x6a, 0x00, 0x6a, 0x00, 0x6a, 0x00, 0xcf, 0x83, 0xc4, 0x0c, 0xc3 }, |
| /* pushl $0; pushl $0; pushl $0; iret; addl $12,%esp; ret */ |
| 6, 1, STATUS_ACCESS_VIOLATION, 2, { 0, 0xffffffff } }, |
| |
| /* test loading an invalid selector */ |
| { { 0xb8, 0xef, 0xbe, 0x00, 0x00, 0x8e, 0xe8, 0xc3 }, /* mov $beef,%ax; mov %ax,%gs; ret */ |
| 5, 2, STATUS_ACCESS_VIOLATION, 2, { 0, 0xbee8 } }, |
| |
| /* test accessing a zero selector */ |
| { { 0x06, 0x31, 0xc0, 0x8e, 0xc0, 0x26, 0xa1, 0, 0, 0, 0, 0x07, 0xc3 }, |
| /* push %es; xor %eax,%eax; mov %ax,%es; mov %es:(0),%ax; pop %es */ |
| 5, 6, STATUS_ACCESS_VIOLATION, 2, { 0, 0xffffffff } }, |
| |
| /* test moving %cs -> %ss */ |
| { { 0x0e, 0x17, 0x58, 0xc3 }, /* pushl %cs; popl %ss; popl %eax; ret */ |
| 1, 1, STATUS_ACCESS_VIOLATION, 2, { 0, 0xffffffff } }, |
| |
| /* test overlong instruction (limit is 16 bytes) */ |
| { { 0x64,0x64,0x64,0x64,0x64,0x64,0x64,0x64,0x64,0x64,0x64,0x64,0x64,0x64,0x64,0xfa,0xc3 }, |
| 0, 16, STATUS_ACCESS_VIOLATION, 2, { 0, 0xffffffff } }, |
| { { 0x64,0x64,0x64,0x64,0x64,0x64,0x64,0x64,0x64,0x64,0x64,0x64,0x64,0x64,0xfa,0xc3 }, |
| 0, 15, STATUS_PRIVILEGED_INSTRUCTION, 0 }, |
| |
| /* test invalid interrupt */ |
| { { 0xcd, 0xff, 0xc3 }, /* int $0xff; ret */ |
| 0, 2, STATUS_ACCESS_VIOLATION, 2, { 0, 0xffffffff } }, |
| |
| /* test moves to/from Crx */ |
| { { 0x0f, 0x20, 0xc0, 0xc3 }, /* movl %cr0,%eax; ret */ |
| 0, 3, STATUS_PRIVILEGED_INSTRUCTION, 0 }, |
| { { 0x0f, 0x20, 0xe0, 0xc3 }, /* movl %cr4,%eax; ret */ |
| 0, 3, STATUS_PRIVILEGED_INSTRUCTION, 0 }, |
| { { 0x0f, 0x22, 0xc0, 0xc3 }, /* movl %eax,%cr0; ret */ |
| 0, 3, STATUS_PRIVILEGED_INSTRUCTION, 0 }, |
| { { 0x0f, 0x22, 0xe0, 0xc3 }, /* movl %eax,%cr4; ret */ |
| 0, 3, STATUS_PRIVILEGED_INSTRUCTION, 0 }, |
| |
| /* test moves to/from Drx */ |
| { { 0x0f, 0x21, 0xc0, 0xc3 }, /* movl %dr0,%eax; ret */ |
| 0, 3, STATUS_PRIVILEGED_INSTRUCTION, 0 }, |
| { { 0x0f, 0x21, 0xc8, 0xc3 }, /* movl %dr1,%eax; ret */ |
| 0, 3, STATUS_PRIVILEGED_INSTRUCTION, 0 }, |
| { { 0x0f, 0x21, 0xf8, 0xc3 }, /* movl %dr7,%eax; ret */ |
| 0, 3, STATUS_PRIVILEGED_INSTRUCTION, 0 }, |
| { { 0x0f, 0x23, 0xc0, 0xc3 }, /* movl %eax,%dr0; ret */ |
| 0, 3, STATUS_PRIVILEGED_INSTRUCTION, 0 }, |
| { { 0x0f, 0x23, 0xc8, 0xc3 }, /* movl %eax,%dr1; ret */ |
| 0, 3, STATUS_PRIVILEGED_INSTRUCTION, 0 }, |
| { { 0x0f, 0x23, 0xf8, 0xc3 }, /* movl %eax,%dr7; ret */ |
| 0, 3, STATUS_PRIVILEGED_INSTRUCTION, 0 }, |
| |
| /* test memory reads */ |
| { { 0xa1, 0xfc, 0xff, 0xff, 0xff, 0xc3 }, /* movl 0xfffffffc,%eax; ret */ |
| 0, 5, STATUS_ACCESS_VIOLATION, 2, { 0, 0xfffffffc } }, |
| { { 0xa1, 0xfd, 0xff, 0xff, 0xff, 0xc3 }, /* movl 0xfffffffd,%eax; ret */ |
| 0, 5, STATUS_ACCESS_VIOLATION, 2, { 0, 0xffffffff } }, |
| { { 0xa1, 0xfe, 0xff, 0xff, 0xff, 0xc3 }, /* movl 0xfffffffe,%eax; ret */ |
| 0, 5, STATUS_ACCESS_VIOLATION, 2, { 0, 0xffffffff } }, |
| { { 0xa1, 0xff, 0xff, 0xff, 0xff, 0xc3 }, /* movl 0xffffffff,%eax; ret */ |
| 0, 5, STATUS_ACCESS_VIOLATION, 2, { 0, 0xffffffff } }, |
| |
| /* test memory writes */ |
| { { 0xa3, 0xfc, 0xff, 0xff, 0xff, 0xc3 }, /* movl %eax,0xfffffffc; ret */ |
| 0, 5, STATUS_ACCESS_VIOLATION, 2, { 1, 0xfffffffc } }, |
| { { 0xa3, 0xfd, 0xff, 0xff, 0xff, 0xc3 }, /* movl %eax,0xfffffffd; ret */ |
| 0, 5, STATUS_ACCESS_VIOLATION, 2, { 0, 0xffffffff } }, |
| { { 0xa3, 0xfe, 0xff, 0xff, 0xff, 0xc3 }, /* movl %eax,0xfffffffe; ret */ |
| 0, 5, STATUS_ACCESS_VIOLATION, 2, { 0, 0xffffffff } }, |
| { { 0xa3, 0xff, 0xff, 0xff, 0xff, 0xc3 }, /* movl %eax,0xffffffff; ret */ |
| 0, 5, STATUS_ACCESS_VIOLATION, 2, { 0, 0xffffffff } }, |
| }; |
| |
| static int got_exception; |
| |
| static DWORD handler( EXCEPTION_RECORD *rec, EXCEPTION_REGISTRATION_RECORD *frame, |
| CONTEXT *context, EXCEPTION_REGISTRATION_RECORD **dispatcher ) |
| { |
| const struct exception *except = *(const struct exception **)(frame + 1); |
| unsigned int i, entry = except - exceptions; |
| |
| got_exception++; |
| trace( "exception: %lx flags:%lx addr:%p\n", |
| rec->ExceptionCode, rec->ExceptionFlags, rec->ExceptionAddress ); |
| |
| ok( rec->ExceptionCode == except->status, |
| "%u: Wrong exception code %lx/%lx\n", entry, rec->ExceptionCode, except->status ); |
| ok( rec->ExceptionAddress == except->code + except->offset, |
| "%u: Wrong exception address %p/%p\n", entry, |
| rec->ExceptionAddress, except->code + except->offset ); |
| |
| ok( rec->NumberParameters == except->nb_params, |
| "%u: Wrong number of parameters %lu/%lu\n", entry, rec->NumberParameters, except->nb_params ); |
| for (i = 0; i < rec->NumberParameters; i++) |
| ok( rec->ExceptionInformation[i] == except->params[i], |
| "%u: Wrong parameter %d: %lx/%lx\n", |
| entry, i, rec->ExceptionInformation[i], except->params[i] ); |
| |
| /* don't handle exception if it's not the address we expected */ |
| if (rec->ExceptionAddress != except->code + except->offset) return ExceptionContinueSearch; |
| |
| context->Eip += except->length; |
| return ExceptionContinueExecution; |
| } |
| |
| static void test_prot_fault(void) |
| { |
| unsigned int i; |
| struct |
| { |
| EXCEPTION_REGISTRATION_RECORD frame; |
| const struct exception *except; |
| } exc_frame; |
| |
| pNtCurrentTeb = (void *)GetProcAddress( GetModuleHandleA("ntdll.dll"), "NtCurrentTeb" ); |
| if (!pNtCurrentTeb) |
| { |
| trace( "NtCurrentTeb not found, skipping tests\n" ); |
| return; |
| } |
| |
| exc_frame.frame.Handler = handler; |
| exc_frame.frame.Prev = pNtCurrentTeb()->Tib.ExceptionList; |
| pNtCurrentTeb()->Tib.ExceptionList = &exc_frame.frame; |
| for (i = 0; i < sizeof(exceptions)/sizeof(exceptions[0]); i++) |
| { |
| void (*func)(void) = (void *)exceptions[i].code; |
| exc_frame.except = &exceptions[i]; |
| got_exception = 0; |
| func(); |
| if (!i && !got_exception) |
| { |
| trace( "No exception, assuming win9x, no point in testing further\n" ); |
| break; |
| } |
| ok( got_exception == (exceptions[i].status != 0), |
| "%u: bad exception count %d\n", i, got_exception ); |
| } |
| pNtCurrentTeb()->Tib.ExceptionList = exc_frame.frame.Prev; |
| } |
| |
| #endif /* __i386__ */ |
| |
| START_TEST(exception) |
| { |
| #ifdef __i386__ |
| test_prot_fault(); |
| #endif |
| } |
