dlls/ntdll/ntdll_misc.h

   1 /*
   2  * Copyright 2000 Juergen Schmied
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #ifndef __WINE_NTDLL_MISC_H
  20 #define __WINE_NTDLL_MISC_H
  21
  22 #include <stdarg.h>
  23 #include <signal.h>
  24 #include <sys/types.h>
  25 #include <pthread.h>
  26
  27 #include "windef.h"
  28 #include "winnt.h"
  29 #include "winternl.h"
  30 #include "wine/server.h"
  31
  32 #define MAX_NT_PATH_LENGTH 277
  33
  34 #define MAX_DOS_DRIVES 26
  35
  36 struct drive_info
  37 {
  38     dev_t dev;
  39     ino_t ino;
  40 };
  41
  42 /* exceptions */
  43 extern void wait_suspend( CONTEXT *context );
  44 extern void WINAPI __regs_RtlRaiseException( PEXCEPTION_RECORD, PCONTEXT );
  45 extern void set_cpu_context( const CONTEXT *context );
  46 extern void copy_context( CONTEXT *to, const CONTEXT *from, DWORD flags );
  47 extern NTSTATUS context_to_server( context_t *to, const CONTEXT *from );
  48 extern NTSTATUS context_from_server( CONTEXT *to, const context_t *from );
  49
  50 /* debug helpers */
  51 extern LPCSTR debugstr_us( const UNICODE_STRING *str );
  52 extern LPCSTR debugstr_ObjectAttributes(const OBJECT_ATTRIBUTES *oa);
  53
  54 extern NTSTATUS NTDLL_queue_process_apc( HANDLE process, const apc_call_t *call, apc_result_t *result );
  55 extern NTSTATUS NTDLL_wait_for_multiple_objects( UINT count, const HANDLE *handles, UINT flags,
  56                                                  const LARGE_INTEGER *timeout, HANDLE signal_object );
  57
  58 /* init routines */
  59 extern void signal_init_thread( TEB *teb );
  60 extern void signal_init_process(void);
  61 extern size_t get_signal_stack_total_size(void);
  62 extern void version_init( const WCHAR *appname );
  63 extern void debug_init(void);
  64 extern HANDLE thread_init(void);
  65 extern void actctx_init(void);
  66 extern void virtual_init(void);
  67 extern void virtual_init_threading(void);
  68
  69 /* server support */
  70 extern timeout_t server_start_time;
  71 extern unsigned int server_cpus;
  72 extern void server_init_process(void);
  73 extern NTSTATUS server_init_process_done(void);
  74 extern size_t server_init_thread( void *entry_point );
  75 extern void DECLSPEC_NORETURN server_protocol_error( const char *err, ... );
  76 extern void DECLSPEC_NORETURN server_protocol_perror( const char *err );
  77 extern void DECLSPEC_NORETURN abort_thread( int status );
  78 extern sigset_t server_block_set;
  79 extern void server_enter_uninterrupted_section( RTL_CRITICAL_SECTION *cs, sigset_t *sigset );
  80 extern void server_leave_uninterrupted_section( RTL_CRITICAL_SECTION *cs, sigset_t *sigset );
  81 extern int server_remove_fd_from_cache( HANDLE handle );
  82 extern int server_get_unix_fd( HANDLE handle, unsigned int access, int *unix_fd,
  83                                int *needs_close, enum server_fd_type *type, unsigned int *options );
  84
  85 /* security descriptors */
  86 NTSTATUS NTDLL_create_struct_sd(PSECURITY_DESCRIPTOR nt_sd, struct security_descriptor **server_sd,
  87                                 data_size_t *server_sd_len);
  88 void NTDLL_free_struct_sd(struct security_descriptor *server_sd);
  89
  90 /* module handling */
  91 extern NTSTATUS MODULE_DllThreadAttach( LPVOID lpReserved );
  92 extern FARPROC RELAY_GetProcAddress( HMODULE module, const IMAGE_EXPORT_DIRECTORY *exports,
  93                                      DWORD exp_size, FARPROC proc, DWORD ordinal, const WCHAR *user );
  94 extern FARPROC SNOOP_GetProcAddress( HMODULE hmod, const IMAGE_EXPORT_DIRECTORY *exports, DWORD exp_size,
  95                                      FARPROC origfun, DWORD ordinal, const WCHAR *user );
  96 extern void RELAY_SetupDLL( HMODULE hmod );
  97 extern void SNOOP_SetupDLL( HMODULE hmod );
  98 extern UNICODE_STRING windows_dir;
  99 extern UNICODE_STRING system_dir;
 100
 101 typedef LONG (WINAPI *PUNHANDLED_EXCEPTION_FILTER)(PEXCEPTION_POINTERS);
 102 extern PUNHANDLED_EXCEPTION_FILTER unhandled_exception_filter;
 103
 104 /* redefine these to make sure we don't reference kernel symbols */
 105 #define GetProcessHeap()       (NtCurrentTeb()->Peb->ProcessHeap)
 106 #define GetCurrentProcessId()  (HandleToULong(NtCurrentTeb()->ClientId.UniqueProcess))
 107 #define GetCurrentThreadId()   (HandleToULong(NtCurrentTeb()->ClientId.UniqueThread))
 108
 109 /* Device IO */
 110 extern NTSTATUS CDROM_DeviceIoControl(HANDLE hDevice,
 111                                       HANDLE hEvent, PIO_APC_ROUTINE UserApcRoutine,
 112                                       PVOID UserApcContext,
 113                                       PIO_STATUS_BLOCK piosb,
 114                                       ULONG IoControlCode,
 115                                       LPVOID lpInBuffer, DWORD nInBufferSize,
 116                                       LPVOID lpOutBuffer, DWORD nOutBufferSize);
 117 extern NTSTATUS COMM_DeviceIoControl(HANDLE hDevice,
 118                                      HANDLE hEvent, PIO_APC_ROUTINE UserApcRoutine,
 119                                      PVOID UserApcContext,
 120                                      PIO_STATUS_BLOCK piosb,
 121                                      ULONG IoControlCode,
 122                                      LPVOID lpInBuffer, DWORD nInBufferSize,
 123                                      LPVOID lpOutBuffer, DWORD nOutBufferSize);
 124 extern NTSTATUS TAPE_DeviceIoControl(HANDLE hDevice,
 125                                      HANDLE hEvent, PIO_APC_ROUTINE UserApcRoutine,
 126                                      PVOID UserApcContext,
 127                                      PIO_STATUS_BLOCK piosb,
 128                                      ULONG IoControlCode,
 129                                      LPVOID lpInBuffer, DWORD nInBufferSize,
 130                                      LPVOID lpOutBuffer, DWORD nOutBufferSize);
 131
 132 /* file I/O */
 133 extern NTSTATUS FILE_GetNtStatus(void);
 134 extern BOOL DIR_is_hidden_file( const UNICODE_STRING *name );
 135 extern NTSTATUS DIR_unmount_device( HANDLE handle );
 136 extern NTSTATUS DIR_get_unix_cwd( char **cwd );
 137 extern unsigned int DIR_get_drives_info( struct drive_info info[MAX_DOS_DRIVES] );
 138
 139 /* virtual memory */
 140 extern void virtual_get_system_info( SYSTEM_BASIC_INFORMATION *info );
 141 extern NTSTATUS virtual_create_system_view( void *base, SIZE_T size, DWORD vprot );
 142 extern SIZE_T virtual_free_system_view( PVOID *addr_ptr );
 143 extern NTSTATUS virtual_alloc_thread_stack( TEB *teb, SIZE_T reserve_size, SIZE_T commit_size );
 144 extern void virtual_clear_thread_stack(void);
 145 extern BOOL virtual_handle_stack_fault( void *addr );
 146 extern NTSTATUS virtual_handle_fault( LPCVOID addr, DWORD err );
 147 extern BOOL virtual_check_buffer_for_read( const void *ptr, SIZE_T size );
 148 extern BOOL virtual_check_buffer_for_write( void *ptr, SIZE_T size );
 149 extern void VIRTUAL_SetForceExec( BOOL enable );
 150 extern void VIRTUAL_UseLargeAddressSpace(void);
 151 extern struct _KUSER_SHARED_DATA *user_shared_data;
 152
 153 /* completion */
 154 extern NTSTATUS NTDLL_AddCompletion( HANDLE hFile, ULONG_PTR CompletionValue,
 155                                      NTSTATUS CompletionStatus, ULONG Information );
 156
 157 /* code pages */
 158 extern int ntdll_umbstowcs(DWORD flags, const char* src, int srclen, WCHAR* dst, int dstlen);
 159 extern int ntdll_wcstoumbs(DWORD flags, const WCHAR* src, int srclen, char* dst, int dstlen,
 160                            const char* defchar, int *used );
 161
 162 extern int CDECL NTDLL__vsnprintf( char *str, SIZE_T len, const char *format, __ms_va_list args );
 163 extern int CDECL NTDLL__vsnwprintf( WCHAR *str, SIZE_T len, const WCHAR *format, __ms_va_list args );
 164
 165 /* load order */
 166
 167 enum loadorder
 168 {
 169     LO_INVALID,
 170     LO_DISABLED,
 171     LO_NATIVE,
 172     LO_BUILTIN,
 173     LO_NATIVE_BUILTIN,  /* native then builtin */
 174     LO_BUILTIN_NATIVE,  /* builtin then native */
 175     LO_DEFAULT          /* nothing specified, use default strategy */
 176 };
 177
 178 extern enum loadorder get_load_order( const WCHAR *app_name, const WCHAR *path );
 179
 180 struct debug_info
 181 {
 182     char *str_pos;       /* current position in strings buffer */
 183     char *out_pos;       /* current position in output buffer */
 184     char  strings[1024]; /* buffer for temporary strings */
 185     char  output[1024];  /* current output line */
 186 };
 187
 188 /* thread private data, stored in NtCurrentTeb()->SystemReserved2 */
 189 struct ntdll_thread_data
 190 {
 191     DWORD              fs;            /* 1d4/300 TEB selector */
 192     DWORD              gs;            /* 1d8/304 libc selector; update winebuild if you move this! */
 193     struct debug_info *debug_info;    /* 1dc/308 info for debugstr functions */
 194     int                request_fd;    /* 1e0/310 fd for sending server requests */
 195     int                reply_fd;      /* 1e4/314 fd for receiving server replies */
 196     int                wait_fd[2];    /* 1e8/318 fd for sleeping server requests */
 197     void              *vm86_ptr;      /* 1f0/320 data for vm86 mode */
 198     pthread_t          pthread_id;    /* 1f4/328 pthread thread id */
 199 };
 200
 201 static inline struct ntdll_thread_data *ntdll_get_thread_data(void)
 202 {
 203     return (struct ntdll_thread_data *)NtCurrentTeb()->SystemReserved2;
 204 }
 205
 206 /* thread debug_registers, stored in NtCurrentTeb()->SpareBytes1 */
 207 struct ntdll_thread_regs
 208 {
 209     DWORD dr0;
 210     DWORD dr1;
 211     DWORD dr2;
 212     DWORD dr3;
 213     DWORD dr6;
 214     DWORD dr7;
 215 };
 216
 217 static inline struct ntdll_thread_regs *ntdll_get_thread_regs(void)
 218 {
 219     return (struct ntdll_thread_regs *)NtCurrentTeb()->SpareBytes1;
 220 }
 221
 222 /* Register functions */
 223
 224 #ifdef __i386__
 225 #define DEFINE_REGS_ENTRYPOINT( name, args ) \
 226     __ASM_GLOBAL_FUNC( name, \
 227                        ".byte 0x68\n\t"  /* pushl $__regs_func */       \
 228                        ".long " __ASM_NAME("__regs_") #name "-.-11\n\t" \
 229                        ".byte 0x6a," #args "\n\t" /* pushl $args */     \
 230                        "call " __ASM_NAME("__wine_call_from_32_regs"))
 231 #elif defined(__x86_64__)
 232 #define DEFINE_REGS_ENTRYPOINT( name, args ) \
 233     __ASM_GLOBAL_FUNC( name, \
 234                        "movq %rcx,8(%rsp)\n\t"  \
 235                        "movq %rdx,16(%rsp)\n\t" \
 236                        "movq $" #args ",%rcx\n\t" \
 237                        "leaq " __ASM_NAME("__regs_") #name "(%rip),%rdx\n\t" \
 238                        "call " __ASM_NAME("__wine_call_from_regs"))
 239 #endif
 240
 241 #endif