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
  26 #include "windef.h"
  27 #include "winnt.h"
  28 #include "winternl.h"
  29 #include "wine/server.h"
  30
  31 #define MAX_NT_PATH_LENGTH 277
  32
  33 #define MAX_DOS_DRIVES 26
  34
  35 struct drive_info
  36 {
  37     dev_t dev;
  38     ino_t ino;
  39 };
  40
  41 /* exceptions */
  42 extern void wait_suspend( CONTEXT *context );
  43 extern void WINAPI __regs_RtlRaiseException( PEXCEPTION_RECORD, PCONTEXT );
  44 extern void get_cpu_context( CONTEXT *context );
  45 extern void set_cpu_context( const CONTEXT *context );
  46
  47 /* debug helper */
  48 extern LPCSTR debugstr_us( const UNICODE_STRING *str );
  49 extern void dump_ObjectAttributes (const OBJECT_ATTRIBUTES *ObjectAttributes);
  50
  51 extern NTSTATUS NTDLL_queue_process_apc( HANDLE process, const apc_call_t *call, apc_result_t *result );
  52 extern NTSTATUS NTDLL_wait_for_multiple_objects( UINT count, const HANDLE *handles, UINT flags,
  53                                                  const LARGE_INTEGER *timeout, HANDLE signal_object );
  54
  55 /* init routines */
  56 extern void signal_init_thread(void);
  57 extern void signal_init_process(void);
  58 extern size_t get_signal_stack_total_size(void);
  59 extern void version_init( const WCHAR *appname );
  60 extern void debug_init(void);
  61 extern HANDLE thread_init(void);
  62 extern void pthread_init(void);
  63 extern void actctx_init(void);
  64 extern void virtual_init(void);
  65 extern void virtual_init_threading(void);
  66
  67 /* server support */
  68 extern timeout_t server_start_time;
  69 extern void server_init_process(void);
  70 extern NTSTATUS server_init_process_done(void);
  71 extern size_t server_init_thread( int unix_pid, int unix_tid, void *entry_point );
  72 extern void DECLSPEC_NORETURN server_protocol_error( const char *err, ... );
  73 extern void DECLSPEC_NORETURN server_protocol_perror( const char *err );
  74 extern void DECLSPEC_NORETURN server_exit_thread( int status );
  75 extern void DECLSPEC_NORETURN server_abort_thread( int status );
  76 extern sigset_t server_block_set;
  77 extern void server_enter_uninterrupted_section( RTL_CRITICAL_SECTION *cs, sigset_t *sigset );
  78 extern void server_leave_uninterrupted_section( RTL_CRITICAL_SECTION *cs, sigset_t *sigset );
  79 extern int server_remove_fd_from_cache( HANDLE handle );
  80 extern int server_get_unix_fd( HANDLE handle, unsigned int access, int *unix_fd,
  81                                int *needs_close, enum server_fd_type *type, unsigned int *options );
  82
  83 /* security descriptors */
  84 NTSTATUS NTDLL_create_struct_sd(PSECURITY_DESCRIPTOR nt_sd, struct security_descriptor **server_sd,
  85                                 data_size_t *server_sd_len);
  86 void NTDLL_free_struct_sd(struct security_descriptor *server_sd);
  87
  88 /* module handling */
  89 extern NTSTATUS MODULE_DllThreadAttach( LPVOID lpReserved );
  90 extern FARPROC RELAY_GetProcAddress( HMODULE module, const IMAGE_EXPORT_DIRECTORY *exports,
  91                                      DWORD exp_size, FARPROC proc, DWORD ordinal, const WCHAR *user );
  92 extern FARPROC SNOOP_GetProcAddress( HMODULE hmod, const IMAGE_EXPORT_DIRECTORY *exports, DWORD exp_size,
  93                                      FARPROC origfun, DWORD ordinal, const WCHAR *user );
  94 extern void RELAY_SetupDLL( HMODULE hmod );
  95 extern void SNOOP_SetupDLL( HMODULE hmod );
  96 extern UNICODE_STRING windows_dir;
  97 extern UNICODE_STRING system_dir;
  98
  99 typedef LONG (WINAPI *PUNHANDLED_EXCEPTION_FILTER)(PEXCEPTION_POINTERS);
 100 extern PUNHANDLED_EXCEPTION_FILTER unhandled_exception_filter;
 101
 102 /* redefine these to make sure we don't reference kernel symbols */
 103 #define GetProcessHeap()       (NtCurrentTeb()->Peb->ProcessHeap)
 104 #define GetCurrentProcessId()  (HandleToULong(NtCurrentTeb()->ClientId.UniqueProcess))
 105 #define GetCurrentThreadId()   (HandleToULong(NtCurrentTeb()->ClientId.UniqueThread))
 106
 107 /* Device IO */
 108 extern NTSTATUS CDROM_DeviceIoControl(HANDLE hDevice,
 109                                       HANDLE hEvent, PIO_APC_ROUTINE UserApcRoutine,
 110                                       PVOID UserApcContext,
 111                                       PIO_STATUS_BLOCK piosb,
 112                                       ULONG IoControlCode,
 113                                       LPVOID lpInBuffer, DWORD nInBufferSize,
 114                                       LPVOID lpOutBuffer, DWORD nOutBufferSize);
 115 extern NTSTATUS COMM_DeviceIoControl(HANDLE hDevice,
 116                                      HANDLE hEvent, PIO_APC_ROUTINE UserApcRoutine,
 117                                      PVOID UserApcContext,
 118                                      PIO_STATUS_BLOCK piosb,
 119                                      ULONG IoControlCode,
 120                                      LPVOID lpInBuffer, DWORD nInBufferSize,
 121                                      LPVOID lpOutBuffer, DWORD nOutBufferSize);
 122 extern NTSTATUS TAPE_DeviceIoControl(HANDLE hDevice,
 123                                      HANDLE hEvent, PIO_APC_ROUTINE UserApcRoutine,
 124                                      PVOID UserApcContext,
 125                                      PIO_STATUS_BLOCK piosb,
 126                                      ULONG IoControlCode,
 127                                      LPVOID lpInBuffer, DWORD nInBufferSize,
 128                                      LPVOID lpOutBuffer, DWORD nOutBufferSize);
 129
 130 /* file I/O */
 131 extern NTSTATUS FILE_GetNtStatus(void);
 132 extern BOOL DIR_is_hidden_file( const UNICODE_STRING *name );
 133 extern NTSTATUS DIR_unmount_device( HANDLE handle );
 134 extern NTSTATUS DIR_get_unix_cwd( char **cwd );
 135 extern unsigned int DIR_get_drives_info( struct drive_info info[MAX_DOS_DRIVES] );
 136
 137 /* virtual memory */
 138 extern void virtual_get_system_info( SYSTEM_BASIC_INFORMATION *info );
 139 extern NTSTATUS virtual_create_system_view( void *base, SIZE_T size, DWORD vprot );
 140 extern SIZE_T virtual_free_system_view( PVOID *addr_ptr );
 141 extern NTSTATUS virtual_alloc_thread_stack( void *base, SIZE_T stack_size );
 142 extern void virtual_clear_thread_stack(void);
 143 extern BOOL virtual_handle_stack_fault( void *addr );
 144 extern NTSTATUS virtual_handle_fault( LPCVOID addr, DWORD err );
 145 extern void VIRTUAL_SetForceExec( BOOL enable );
 146 extern void VIRTUAL_UseLargeAddressSpace(void);
 147 extern struct _KUSER_SHARED_DATA *user_shared_data;
 148
 149 /* completion */
 150 extern NTSTATUS NTDLL_AddCompletion( HANDLE hFile, ULONG_PTR CompletionValue,
 151                                      NTSTATUS CompletionStatus, ULONG Information );
 152
 153 /* code pages */
 154 extern int ntdll_umbstowcs(DWORD flags, const char* src, int srclen, WCHAR* dst, int dstlen);
 155 extern int ntdll_wcstoumbs(DWORD flags, const WCHAR* src, int srclen, char* dst, int dstlen,
 156                            const char* defchar, int *used );
 157
 158 /* load order */
 159
 160 enum loadorder
 161 {
 162     LO_INVALID,
 163     LO_DISABLED,
 164     LO_NATIVE,
 165     LO_BUILTIN,
 166     LO_NATIVE_BUILTIN,  /* native then builtin */
 167     LO_BUILTIN_NATIVE,  /* builtin then native */
 168     LO_DEFAULT          /* nothing specified, use default strategy */
 169 };
 170
 171 extern enum loadorder get_load_order( const WCHAR *app_name, const WCHAR *path );
 172
 173 struct debug_info
 174 {
 175     char *str_pos;       /* current position in strings buffer */
 176     char *out_pos;       /* current position in output buffer */
 177     char  strings[1024]; /* buffer for temporary strings */
 178     char  output[1024];  /* current output line */
 179 };
 180
 181 /* thread private data, stored in NtCurrentTeb()->SystemReserved2 */
 182 struct ntdll_thread_data
 183 {
 184     DWORD              fs;            /* 1d4 TEB selector */
 185     DWORD              gs;            /* 1d8 libc selector; update winebuild if you move this! */
 186     struct debug_info *debug_info;    /* 1dc info for debugstr functions */
 187     int                request_fd;    /* 1e0 fd for sending server requests */
 188     int                reply_fd;      /* 1e4 fd for receiving server replies */
 189     int                wait_fd[2];    /* 1e8 fd for sleeping server requests */
 190     void              *vm86_ptr;      /* 1f0 data for vm86 mode */
 191     void              *pthread_data;  /* 1f4 private data for pthread emulation */
 192
 193     void              *pad[1];        /* 1f8 change this if you add fields! */
 194 };
 195
 196 static inline struct ntdll_thread_data *ntdll_get_thread_data(void)
 197 {
 198     return (struct ntdll_thread_data *)NtCurrentTeb()->SystemReserved2;
 199 }
 200
 201 /* thread debug_registers, stored in NtCurrentTeb()->SpareBytes1 */
 202 struct ntdll_thread_regs
 203 {
 204     DWORD dr0;
 205     DWORD dr1;
 206     DWORD dr2;
 207     DWORD dr3;
 208     DWORD dr6;
 209     DWORD dr7;
 210 };
 211
 212 static inline struct ntdll_thread_regs *ntdll_get_thread_regs(void)
 213 {
 214     return (struct ntdll_thread_regs *)NtCurrentTeb()->SpareBytes1;
 215 }
 216
 217 /* Register functions */
 218
 219 #ifdef __i386__
 220 #define DEFINE_REGS_ENTRYPOINT( name, args, pop_args ) \
 221     __ASM_GLOBAL_FUNC( name, \
 222                        "pushl %eax\n\t" \
 223                        "call " __ASM_NAME("__wine_call_from_32_regs") "\n\t" \
 224                        ".long " __ASM_NAME("__regs_") #name "-.\n\t" \
 225                        ".byte " #args "," #pop_args )
 226 /* FIXME: add support for other CPUs */
 227 #endif
 228
 229 #endif