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wine/dlls/ntdll/loader.c

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/*
* Loader functions
*
* Copyright 1995, 2003 Alexandre Julliard
* Copyright 2002 Dmitry Timoshkov for CodeWeavers
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include "wine/port.h"
#include <assert.h>
#include <stdarg.h>
#ifdef HAVE_SYS_MMAN_H
# include <sys/mman.h>
#endif
#define NONAMELESSUNION
#define NONAMELESSSTRUCT
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "windef.h"
#include "winnt.h"
#include "winternl.h"
#include "wine/exception.h"
#include "wine/library.h"
#include "wine/unicode.h"
#include "wine/debug.h"
#include "wine/server.h"
#include "ntdll_misc.h"
#include "ddk/wdm.h"
WINE_DEFAULT_DEBUG_CHANNEL(module);
WINE_DECLARE_DEBUG_CHANNEL(relay);
WINE_DECLARE_DEBUG_CHANNEL(snoop);
WINE_DECLARE_DEBUG_CHANNEL(loaddll);
WINE_DECLARE_DEBUG_CHANNEL(imports);
/* we don't want to include winuser.h */
#define RT_MANIFEST ((ULONG_PTR)24)
#define ISOLATIONAWARE_MANIFEST_RESOURCE_ID ((ULONG_PTR)2)
typedef DWORD (CALLBACK *DLLENTRYPROC)(HMODULE,DWORD,LPVOID);
static int process_detaching = 0; /* set on process detach to avoid deadlocks with thread detach */
static int free_lib_count; /* recursion depth of LdrUnloadDll calls */
static const char * const reason_names[] =
{
"PROCESS_DETACH",
"PROCESS_ATTACH",
"THREAD_ATTACH",
"THREAD_DETACH",
NULL, NULL, NULL, NULL,
"WINE_PREATTACH"
};
static const WCHAR dllW[] = {'.','d','l','l',0};
/* internal representation of 32bit modules. per process. */
typedef struct _wine_modref
{
LDR_MODULE ldr;
int nDeps;
struct _wine_modref **deps;
} WINE_MODREF;
/* info about the current builtin dll load */
/* used to keep track of things across the register_dll constructor call */
struct builtin_load_info
{
const WCHAR *load_path;
const WCHAR *filename;
NTSTATUS status;
WINE_MODREF *wm;
};
static struct builtin_load_info default_load_info;
static struct builtin_load_info *builtin_load_info = &default_load_info;
static HANDLE main_exe_file;
static UINT tls_module_count; /* number of modules with TLS directory */
static UINT tls_total_size; /* total size of TLS storage */
static const IMAGE_TLS_DIRECTORY **tls_dirs; /* array of TLS directories */
UNICODE_STRING windows_dir = { 0, 0, NULL }; /* windows directory */
UNICODE_STRING system_dir = { 0, 0, NULL }; /* system directory */
static RTL_CRITICAL_SECTION loader_section;
static RTL_CRITICAL_SECTION_DEBUG critsect_debug =
{
0, 0, &loader_section,
{ &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
0, 0, { (DWORD_PTR)(__FILE__ ": loader_section") }
};
static RTL_CRITICAL_SECTION loader_section = { &critsect_debug, -1, 0, 0, 0, 0 };
static WINE_MODREF *cached_modref;
static WINE_MODREF *current_modref;
static WINE_MODREF *last_failed_modref;
static NTSTATUS load_dll( LPCWSTR load_path, LPCWSTR libname, DWORD flags, WINE_MODREF** pwm );
static NTSTATUS process_attach( WINE_MODREF *wm, LPVOID lpReserved );
static FARPROC find_named_export( HMODULE module, const IMAGE_EXPORT_DIRECTORY *exports,
DWORD exp_size, const char *name, int hint, LPCWSTR load_path );
/* convert PE image VirtualAddress to Real Address */
static inline void *get_rva( HMODULE module, DWORD va )
{
return (void *)((char *)module + va);
}
/* check whether the file name contains a path */
static inline int contains_path( LPCWSTR name )
{
return ((*name && (name[1] == ':')) || strchrW(name, '/') || strchrW(name, '\\'));
}
/* convert from straight ASCII to Unicode without depending on the current codepage */
static inline void ascii_to_unicode( WCHAR *dst, const char *src, size_t len )
{
while (len--) *dst++ = (unsigned char)*src++;
}
/*************************************************************************
* call_dll_entry_point
*
* Some brain-damaged dlls (ir32_32.dll for instance) modify ebx in
* their entry point, so we need a small asm wrapper.
*/
#ifdef __i386__
extern BOOL call_dll_entry_point( DLLENTRYPROC proc, void *module, UINT reason, void *reserved );
__ASM_GLOBAL_FUNC(call_dll_entry_point,
"pushl %ebp\n\t"
__ASM_CFI(".cfi_adjust_cfa_offset 4\n\t")
__ASM_CFI(".cfi_rel_offset %ebp,0\n\t")
"movl %esp,%ebp\n\t"
__ASM_CFI(".cfi_def_cfa_register %ebp\n\t")
"pushl %ebx\n\t"
__ASM_CFI(".cfi_rel_offset %ebx,-4\n\t")
"subl $8,%esp\n\t"
"pushl 20(%ebp)\n\t"
"pushl 16(%ebp)\n\t"
"pushl 12(%ebp)\n\t"
"movl 8(%ebp),%eax\n\t"
"call *%eax\n\t"
"leal -4(%ebp),%esp\n\t"
"popl %ebx\n\t"
__ASM_CFI(".cfi_same_value %ebx\n\t")
"popl %ebp\n\t"
__ASM_CFI(".cfi_def_cfa %esp,4\n\t")
__ASM_CFI(".cfi_same_value %ebp\n\t")
"ret" )
#else /* __i386__ */
static inline BOOL call_dll_entry_point( DLLENTRYPROC proc, void *module,
UINT reason, void *reserved )
{
return proc( module, reason, reserved );
}
#endif /* __i386__ */
#if defined(__i386__) || defined(__x86_64__)
/*************************************************************************
* stub_entry_point
*
* Entry point for stub functions.
*/
static void stub_entry_point( const char *dll, const char *name, void *ret_addr )
{
EXCEPTION_RECORD rec;
rec.ExceptionCode = EXCEPTION_WINE_STUB;
rec.ExceptionFlags = EH_NONCONTINUABLE;
rec.ExceptionRecord = NULL;
rec.ExceptionAddress = ret_addr;
rec.NumberParameters = 2;
rec.ExceptionInformation[0] = (ULONG_PTR)dll;
rec.ExceptionInformation[1] = (ULONG_PTR)name;
for (;;) RtlRaiseException( &rec );
}
#include "pshpack1.h"
#ifdef __i386__
struct stub
{
BYTE pushl1; /* pushl $name */
const char *name;
BYTE pushl2; /* pushl $dll */
const char *dll;
BYTE call; /* call stub_entry_point */
DWORD entry;
};
#else
struct stub
{
BYTE movq_rdi[2]; /* movq $dll,%rdi */
const char *dll;
BYTE movq_rsi[2]; /* movq $name,%rsi */
const char *name;
BYTE movq_rsp_rdx[4]; /* movq (%rsp),%rdx */
BYTE movq_rax[2]; /* movq $entry, %rax */
const void* entry;
BYTE jmpq_rax[2]; /* jmp %rax */
};
#endif
#include "poppack.h"
/*************************************************************************
* allocate_stub
*
* Allocate a stub entry point.
*/
static ULONG_PTR allocate_stub( const char *dll, const char *name )
{
#define MAX_SIZE 65536
static struct stub *stubs;
static unsigned int nb_stubs;
struct stub *stub;
if (nb_stubs >= MAX_SIZE / sizeof(*stub)) return 0xdeadbeef;
if (!stubs)
{
SIZE_T size = MAX_SIZE;
if (NtAllocateVirtualMemory( NtCurrentProcess(), (void **)&stubs, 0, &size,
MEM_COMMIT, PAGE_EXECUTE_WRITECOPY ) != STATUS_SUCCESS)
return 0xdeadbeef;
}
stub = &stubs[nb_stubs++];
#ifdef __i386__
stub->pushl1 = 0x68; /* pushl $name */
stub->name = name;
stub->pushl2 = 0x68; /* pushl $dll */
stub->dll = dll;
stub->call = 0xe8; /* call stub_entry_point */
stub->entry = (BYTE *)stub_entry_point - (BYTE *)(&stub->entry + 1);
#else
stub->movq_rdi[0] = 0x48; /* movq $dll,%rdi */
stub->movq_rdi[1] = 0xbf;
stub->dll = dll;
stub->movq_rsi[0] = 0x48; /* movq $name,%rsi */
stub->movq_rsi[1] = 0xbe;
stub->name = name;
stub->movq_rsp_rdx[0] = 0x48; /* movq (%rsp),%rdx */
stub->movq_rsp_rdx[1] = 0x8b;
stub->movq_rsp_rdx[2] = 0x14;
stub->movq_rsp_rdx[3] = 0x24;
stub->movq_rax[0] = 0x48; /* movq $entry, %rax */
stub->movq_rax[1] = 0xb8;
stub->entry = stub_entry_point;
stub->jmpq_rax[0] = 0xff; /* jmp %rax */
stub->jmpq_rax[1] = 0xe0;
#endif
return (ULONG_PTR)stub;
}
#else /* __i386__ */
static inline ULONG_PTR allocate_stub( const char *dll, const char *name ) { return 0xdeadbeef; }
#endif /* __i386__ */
/*************************************************************************
* get_modref
*
* Looks for the referenced HMODULE in the current process
* The loader_section must be locked while calling this function.
*/
static WINE_MODREF *get_modref( HMODULE hmod )
{
PLIST_ENTRY mark, entry;
PLDR_MODULE mod;
if (cached_modref && cached_modref->ldr.BaseAddress == hmod) return cached_modref;
mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
for (entry = mark->Flink; entry != mark; entry = entry->Flink)
{
mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList);
if (mod->BaseAddress == hmod)
return cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
if (mod->BaseAddress > (void*)hmod) break;
}
return NULL;
}
/**********************************************************************
* find_basename_module
*
* Find a module from its base name.
* The loader_section must be locked while calling this function
*/
static WINE_MODREF *find_basename_module( LPCWSTR name )
{
PLIST_ENTRY mark, entry;
if (cached_modref && !strcmpiW( name, cached_modref->ldr.BaseDllName.Buffer ))
return cached_modref;
mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
for (entry = mark->Flink; entry != mark; entry = entry->Flink)
{
LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
if (!strcmpiW( name, mod->BaseDllName.Buffer ))
{
cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
return cached_modref;
}
}
return NULL;
}
/**********************************************************************
* find_fullname_module
*
* Find a module from its full path name.
* The loader_section must be locked while calling this function
*/
static WINE_MODREF *find_fullname_module( LPCWSTR name )
{
PLIST_ENTRY mark, entry;
if (cached_modref && !strcmpiW( name, cached_modref->ldr.FullDllName.Buffer ))
return cached_modref;
mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
for (entry = mark->Flink; entry != mark; entry = entry->Flink)
{
LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
if (!strcmpiW( name, mod->FullDllName.Buffer ))
{
cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
return cached_modref;
}
}
return NULL;
}
/*************************************************************************
* find_forwarded_export
*
* Find the final function pointer for a forwarded function.
* The loader_section must be locked while calling this function.
*/
static FARPROC find_forwarded_export( HMODULE module, const char *forward, LPCWSTR load_path )
{
const IMAGE_EXPORT_DIRECTORY *exports;
DWORD exp_size;
WINE_MODREF *wm;
WCHAR mod_name[32];
const char *end = strrchr(forward, '.');
FARPROC proc = NULL;
if (!end) return NULL;
if ((end - forward) * sizeof(WCHAR) >= sizeof(mod_name)) return NULL;
ascii_to_unicode( mod_name, forward, end - forward );
mod_name[end - forward] = 0;
if (!strchrW( mod_name, '.' ))
{
if ((end - forward) * sizeof(WCHAR) >= sizeof(mod_name) - sizeof(dllW)) return NULL;
memcpy( mod_name + (end - forward), dllW, sizeof(dllW) );
}
if (!(wm = find_basename_module( mod_name )))
{
TRACE( "delay loading %s for '%s'\n", debugstr_w(mod_name), forward );
if (load_dll( load_path, mod_name, 0, &wm ) == STATUS_SUCCESS &&
!(wm->ldr.Flags & LDR_DONT_RESOLVE_REFS))
{
if (process_attach( wm, NULL ) != STATUS_SUCCESS)
{
LdrUnloadDll( wm->ldr.BaseAddress );
wm = NULL;
}
}
if (!wm)
{
ERR( "module not found for forward '%s' used by %s\n",
forward, debugstr_w(get_modref(module)->ldr.FullDllName.Buffer) );
return NULL;
}
}
if ((exports = RtlImageDirectoryEntryToData( wm->ldr.BaseAddress, TRUE,
IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size )))
proc = find_named_export( wm->ldr.BaseAddress, exports, exp_size, end + 1, -1, load_path );
if (!proc)
{
ERR("function not found for forward '%s' used by %s."
" If you are using builtin %s, try using the native one instead.\n",
forward, debugstr_w(get_modref(module)->ldr.FullDllName.Buffer),
debugstr_w(get_modref(module)->ldr.BaseDllName.Buffer) );
}
return proc;
}
/*************************************************************************
* find_ordinal_export
*
* Find an exported function by ordinal.
* The exports base must have been subtracted from the ordinal already.
* The loader_section must be locked while calling this function.
*/
static FARPROC find_ordinal_export( HMODULE module, const IMAGE_EXPORT_DIRECTORY *exports,
DWORD exp_size, DWORD ordinal, LPCWSTR load_path )
{
FARPROC proc;
const DWORD *functions = get_rva( module, exports->AddressOfFunctions );
if (ordinal >= exports->NumberOfFunctions)
{
TRACE(" ordinal %d out of range!\n", ordinal + exports->Base );
return NULL;
}
if (!functions[ordinal]) return NULL;
proc = get_rva( module, functions[ordinal] );
/* if the address falls into the export dir, it's a forward */
if (((const char *)proc >= (const char *)exports) &&
((const char *)proc < (const char *)exports + exp_size))
return find_forwarded_export( module, (const char *)proc, load_path );
if (TRACE_ON(snoop))
{
const WCHAR *user = current_modref ? current_modref->ldr.BaseDllName.Buffer : NULL;
proc = SNOOP_GetProcAddress( module, exports, exp_size, proc, ordinal, user );
}
if (TRACE_ON(relay))
{
const WCHAR *user = current_modref ? current_modref->ldr.BaseDllName.Buffer : NULL;
proc = RELAY_GetProcAddress( module, exports, exp_size, proc, ordinal, user );
}
return proc;
}
/*************************************************************************
* find_named_export
*
* Find an exported function by name.
* The loader_section must be locked while calling this function.
*/
static FARPROC find_named_export( HMODULE module, const IMAGE_EXPORT_DIRECTORY *exports,
DWORD exp_size, const char *name, int hint, LPCWSTR load_path )
{
const WORD *ordinals = get_rva( module, exports->AddressOfNameOrdinals );
const DWORD *names = get_rva( module, exports->AddressOfNames );
int min = 0, max = exports->NumberOfNames - 1;
/* first check the hint */
if (hint >= 0 && hint <= max)
{
char *ename = get_rva( module, names[hint] );
if (!strcmp( ename, name ))
return find_ordinal_export( module, exports, exp_size, ordinals[hint], load_path );
}
/* then do a binary search */
while (min <= max)
{
int res, pos = (min + max) / 2;
char *ename = get_rva( module, names[pos] );
if (!(res = strcmp( ename, name )))
return find_ordinal_export( module, exports, exp_size, ordinals[pos], load_path );
if (res > 0) max = pos - 1;
else min = pos + 1;
}
return NULL;
}
/*************************************************************************
* import_dll
*
* Import the dll specified by the given import descriptor.
* The loader_section must be locked while calling this function.
*/
static WINE_MODREF *import_dll( HMODULE module, const IMAGE_IMPORT_DESCRIPTOR *descr, LPCWSTR load_path )
{
NTSTATUS status;
WINE_MODREF *wmImp;
HMODULE imp_mod;
const IMAGE_EXPORT_DIRECTORY *exports;
DWORD exp_size;
const IMAGE_THUNK_DATA *import_list;
IMAGE_THUNK_DATA *thunk_list;
WCHAR buffer[32];
const char *name = get_rva( module, descr->Name );
DWORD len = strlen(name);
PVOID protect_base;
SIZE_T protect_size = 0;
DWORD protect_old;
thunk_list = get_rva( module, (DWORD)descr->FirstThunk );
if (descr->u.OriginalFirstThunk)
import_list = get_rva( module, (DWORD)descr->u.OriginalFirstThunk );
else
import_list = thunk_list;
while (len && name[len-1] == ' ') len--; /* remove trailing spaces */
if (len * sizeof(WCHAR) < sizeof(buffer))
{
ascii_to_unicode( buffer, name, len );
buffer[len] = 0;
status = load_dll( load_path, buffer, 0, &wmImp );
}
else /* need to allocate a larger buffer */
{
WCHAR *ptr = RtlAllocateHeap( GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR) );
if (!ptr) return NULL;
ascii_to_unicode( ptr, name, len );
ptr[len] = 0;
status = load_dll( load_path, ptr, 0, &wmImp );
RtlFreeHeap( GetProcessHeap(), 0, ptr );
}
if (status)
{
if (status == STATUS_DLL_NOT_FOUND)
ERR("Library %s (which is needed by %s) not found\n",
name, debugstr_w(current_modref->ldr.FullDllName.Buffer));
else
ERR("Loading library %s (which is needed by %s) failed (error %x).\n",
name, debugstr_w(current_modref->ldr.FullDllName.Buffer), status);
return NULL;
}
/* unprotect the import address table since it can be located in
* readonly section */
while (import_list[protect_size].u1.Ordinal) protect_size++;
protect_base = thunk_list;
protect_size *= sizeof(*thunk_list);
NtProtectVirtualMemory( NtCurrentProcess(), &protect_base,
&protect_size, PAGE_WRITECOPY, &protect_old );
imp_mod = wmImp->ldr.BaseAddress;
exports = RtlImageDirectoryEntryToData( imp_mod, TRUE, IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size );
if (!exports)
{
/* set all imported function to deadbeef */
while (import_list->u1.Ordinal)
{
if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal))
{
int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal);
WARN("No implementation for %s.%d", name, ordinal );
thunk_list->u1.Function = allocate_stub( name, IntToPtr(ordinal) );
}
else
{
IMAGE_IMPORT_BY_NAME *pe_name = get_rva( module, (DWORD)import_list->u1.AddressOfData );
WARN("No implementation for %s.%s", name, pe_name->Name );
thunk_list->u1.Function = allocate_stub( name, (const char*)pe_name->Name );
}
WARN(" imported from %s, allocating stub %p\n",
debugstr_w(current_modref->ldr.FullDllName.Buffer),
(void *)thunk_list->u1.Function );
import_list++;
thunk_list++;
}
goto done;
}
while (import_list->u1.Ordinal)
{
if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal))
{
int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal);
thunk_list->u1.Function = (ULONG_PTR)find_ordinal_export( imp_mod, exports, exp_size,
ordinal - exports->Base, load_path );
if (!thunk_list->u1.Function)
{
thunk_list->u1.Function = allocate_stub( name, IntToPtr(ordinal) );
WARN("No implementation for %s.%d imported from %s, setting to %p\n",
name, ordinal, debugstr_w(current_modref->ldr.FullDllName.Buffer),
(void *)thunk_list->u1.Function );
}
TRACE_(imports)("--- Ordinal %s.%d = %p\n", name, ordinal, (void *)thunk_list->u1.Function );
}
else /* import by name */
{
IMAGE_IMPORT_BY_NAME *pe_name;
pe_name = get_rva( module, (DWORD)import_list->u1.AddressOfData );
thunk_list->u1.Function = (ULONG_PTR)find_named_export( imp_mod, exports, exp_size,
(const char*)pe_name->Name,
pe_name->Hint, load_path );
if (!thunk_list->u1.Function)
{
thunk_list->u1.Function = allocate_stub( name, (const char*)pe_name->Name );
WARN("No implementation for %s.%s imported from %s, setting to %p\n",
name, pe_name->Name, debugstr_w(current_modref->ldr.FullDllName.Buffer),
(void *)thunk_list->u1.Function );
}
TRACE_(imports)("--- %s %s.%d = %p\n",
pe_name->Name, name, pe_name->Hint, (void *)thunk_list->u1.Function);
}
import_list++;
thunk_list++;
}
done:
/* restore old protection of the import address table */
NtProtectVirtualMemory( NtCurrentProcess(), &protect_base, &protect_size, protect_old, NULL );
return wmImp;
}
/***********************************************************************
* create_module_activation_context
*/
static NTSTATUS create_module_activation_context( LDR_MODULE *module )
{
NTSTATUS status;
LDR_RESOURCE_INFO info;
const IMAGE_RESOURCE_DATA_ENTRY *entry;
info.Type = RT_MANIFEST;
info.Name = ISOLATIONAWARE_MANIFEST_RESOURCE_ID;
info.Language = 0;
if (!(status = LdrFindResource_U( module->BaseAddress, &info, 3, &entry )))
{
ACTCTXW ctx;
ctx.cbSize = sizeof(ctx);
ctx.lpSource = NULL;
ctx.dwFlags = ACTCTX_FLAG_RESOURCE_NAME_VALID | ACTCTX_FLAG_HMODULE_VALID;
ctx.hModule = module->BaseAddress;
ctx.lpResourceName = (LPCWSTR)ISOLATIONAWARE_MANIFEST_RESOURCE_ID;
status = RtlCreateActivationContext( &module->ActivationContext, &ctx );
}
return status;
}
/****************************************************************
* fixup_imports
*
* Fixup all imports of a given module.
* The loader_section must be locked while calling this function.
*/
static NTSTATUS fixup_imports( WINE_MODREF *wm, LPCWSTR load_path )
{
int i, nb_imports;
const IMAGE_IMPORT_DESCRIPTOR *imports;
WINE_MODREF *prev;
DWORD size;
NTSTATUS status;
ULONG_PTR cookie;
if (!(wm->ldr.Flags & LDR_DONT_RESOLVE_REFS)) return STATUS_SUCCESS; /* already done */
wm->ldr.Flags &= ~LDR_DONT_RESOLVE_REFS;
if (!(imports = RtlImageDirectoryEntryToData( wm->ldr.BaseAddress, TRUE,
IMAGE_DIRECTORY_ENTRY_IMPORT, &size )))
return STATUS_SUCCESS;
nb_imports = 0;
while (imports[nb_imports].Name && imports[nb_imports].FirstThunk) nb_imports++;
if (!nb_imports) return STATUS_SUCCESS; /* no imports */
if (!create_module_activation_context( &wm->ldr ))
RtlActivateActivationContext( 0, wm->ldr.ActivationContext, &cookie );
/* Allocate module dependency list */
wm->nDeps = nb_imports;
wm->deps = RtlAllocateHeap( GetProcessHeap(), 0, nb_imports*sizeof(WINE_MODREF *) );
/* load the imported modules. They are automatically
* added to the modref list of the process.
*/
prev = current_modref;
current_modref = wm;
status = STATUS_SUCCESS;
for (i = 0; i < nb_imports; i++)
{
if (!(wm->deps[i] = import_dll( wm->ldr.BaseAddress, &imports[i], load_path )))
status = STATUS_DLL_NOT_FOUND;
}
current_modref = prev;
if (wm->ldr.ActivationContext) RtlDeactivateActivationContext( 0, cookie );
return status;
}
/*************************************************************************
* is_dll_native_subsystem
*
* Check if dll is a proper native driver.
* Some dlls (corpol.dll from IE6 for instance) are incorrectly marked as native
* while being perfectly normal DLLs. This heuristic should catch such breakages.
*/
static BOOL is_dll_native_subsystem( HMODULE module, const IMAGE_NT_HEADERS *nt, LPCWSTR filename )
{
static const WCHAR ntdllW[] = {'n','t','d','l','l','.','d','l','l',0};
static const WCHAR kernel32W[] = {'k','e','r','n','e','l','3','2','.','d','l','l',0};
const IMAGE_IMPORT_DESCRIPTOR *imports;
DWORD i, size;
WCHAR buffer[16];
if (nt->OptionalHeader.Subsystem != IMAGE_SUBSYSTEM_NATIVE) return FALSE;
if (nt->OptionalHeader.SectionAlignment < getpagesize()) return TRUE;
if ((imports = RtlImageDirectoryEntryToData( module, TRUE,
IMAGE_DIRECTORY_ENTRY_IMPORT, &size )))
{
for (i = 0; imports[i].Name; i++)
{
const char *name = get_rva( module, imports[i].Name );
DWORD len = strlen(name);
if (len * sizeof(WCHAR) >= sizeof(buffer)) continue;
ascii_to_unicode( buffer, name, len + 1 );
if (!strcmpiW( buffer, ntdllW ) || !strcmpiW( buffer, kernel32W ))
{
TRACE( "%s imports %s, assuming not native\n", debugstr_w(filename), debugstr_w(buffer) );
return FALSE;
}
}
}
return TRUE;
}
/*************************************************************************
* alloc_module
*
* Allocate a WINE_MODREF structure and add it to the process list
* The loader_section must be locked while calling this function.
*/
static WINE_MODREF *alloc_module( HMODULE hModule, LPCWSTR filename )
{
WINE_MODREF *wm;
const WCHAR *p;
const IMAGE_NT_HEADERS *nt = RtlImageNtHeader(hModule);
PLIST_ENTRY entry, mark;
if (!(wm = RtlAllocateHeap( GetProcessHeap(), 0, sizeof(*wm) ))) return NULL;
wm->nDeps = 0;
wm->deps = NULL;
wm->ldr.BaseAddress = hModule;
wm->ldr.EntryPoint = NULL;
wm->ldr.SizeOfImage = nt->OptionalHeader.SizeOfImage;
wm->ldr.Flags = LDR_DONT_RESOLVE_REFS;
wm->ldr.LoadCount = 1;
wm->ldr.TlsIndex = -1;
wm->ldr.SectionHandle = NULL;
wm->ldr.CheckSum = 0;
wm->ldr.TimeDateStamp = 0;
wm->ldr.ActivationContext = 0;
RtlCreateUnicodeString( &wm->ldr.FullDllName, filename );
if ((p = strrchrW( wm->ldr.FullDllName.Buffer, '\\' ))) p++;
else p = wm->ldr.FullDllName.Buffer;
RtlInitUnicodeString( &wm->ldr.BaseDllName, p );
if ((nt->FileHeader.Characteristics & IMAGE_FILE_DLL) && !is_dll_native_subsystem( hModule, nt, p ))
{
wm->ldr.Flags |= LDR_IMAGE_IS_DLL;
if (nt->OptionalHeader.AddressOfEntryPoint)
wm->ldr.EntryPoint = (char *)hModule + nt->OptionalHeader.AddressOfEntryPoint;
}
InsertTailList(&NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList,
&wm->ldr.InLoadOrderModuleList);
/* insert module in MemoryList, sorted in increasing base addresses */
mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
for (entry = mark->Flink; entry != mark; entry = entry->Flink)
{
if (CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList)->BaseAddress > wm->ldr.BaseAddress)
break;
}
entry->Blink->Flink = &wm->ldr.InMemoryOrderModuleList;
wm->ldr.InMemoryOrderModuleList.Blink = entry->Blink;
wm->ldr.InMemoryOrderModuleList.Flink = entry;
entry->Blink = &wm->ldr.InMemoryOrderModuleList;
/* wait until init is called for inserting into this list */
wm->ldr.InInitializationOrderModuleList.Flink = NULL;
wm->ldr.InInitializationOrderModuleList.Blink = NULL;
if (!(nt->OptionalHeader.DllCharacteristics & IMAGE_DLLCHARACTERISTICS_NX_COMPAT))
{
WARN( "disabling no-exec because of %s\n", debugstr_w(wm->ldr.BaseDllName.Buffer) );
VIRTUAL_SetForceExec( TRUE );
}
return wm;
}
/*************************************************************************
* alloc_process_tls
*
* Allocate the process-wide structure for module TLS storage.
*/
static NTSTATUS alloc_process_tls(void)
{
PLIST_ENTRY mark, entry;
PLDR_MODULE mod;
const IMAGE_TLS_DIRECTORY *dir;
ULONG size, i;
mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
for (entry = mark->Flink; entry != mark; entry = entry->Flink)
{
mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList);
if (!(dir = RtlImageDirectoryEntryToData( mod->BaseAddress, TRUE,
IMAGE_DIRECTORY_ENTRY_TLS, &size )))
continue;
size = (dir->EndAddressOfRawData - dir->StartAddressOfRawData) + dir->SizeOfZeroFill;
if (!size) continue;
tls_total_size += size;
tls_module_count++;
}
if (!tls_module_count) return STATUS_SUCCESS;
TRACE( "count %u size %u\n", tls_module_count, tls_total_size );
tls_dirs = RtlAllocateHeap( GetProcessHeap(), 0, tls_module_count * sizeof(*tls_dirs) );
if (!tls_dirs) return STATUS_NO_MEMORY;
for (i = 0, entry = mark->Flink; entry != mark; entry = entry->Flink)
{
mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList);
if (!(dir = RtlImageDirectoryEntryToData( mod->BaseAddress, TRUE,
IMAGE_DIRECTORY_ENTRY_TLS, &size )))
continue;
tls_dirs[i] = dir;
*(DWORD *)dir->AddressOfIndex = i;
mod->TlsIndex = i;
mod->LoadCount = -1; /* can't unload it */
i++;
}
return STATUS_SUCCESS;
}
/*************************************************************************
* alloc_thread_tls
*
* Allocate the per-thread structure for module TLS storage.
*/
static NTSTATUS alloc_thread_tls(void)
{
void **pointers;
char *data;
UINT i;
if (!tls_module_count) return STATUS_SUCCESS;
if (!(pointers = RtlAllocateHeap( GetProcessHeap(), 0,
tls_module_count * sizeof(*pointers) )))
return STATUS_NO_MEMORY;
if (!(data = RtlAllocateHeap( GetProcessHeap(), 0, tls_total_size )))
{
RtlFreeHeap( GetProcessHeap(), 0, pointers );
return STATUS_NO_MEMORY;
}
for (i = 0; i < tls_module_count; i++)
{
const IMAGE_TLS_DIRECTORY *dir = tls_dirs[i];
ULONG size = dir->EndAddressOfRawData - dir->StartAddressOfRawData;
TRACE( "thread %04x idx %d: %d/%d bytes from %p to %p\n",
GetCurrentThreadId(), i, size, dir->SizeOfZeroFill,
(void *)dir->StartAddressOfRawData, data );
pointers[i] = data;
memcpy( data, (void *)dir->StartAddressOfRawData, size );
data += size;
memset( data, 0, dir->SizeOfZeroFill );
data += dir->SizeOfZeroFill;
}
NtCurrentTeb()->ThreadLocalStoragePointer = pointers;
return STATUS_SUCCESS;
}
/*************************************************************************
* call_tls_callbacks
*/
static void call_tls_callbacks( HMODULE module, UINT reason )
{
const IMAGE_TLS_DIRECTORY *dir;
const PIMAGE_TLS_CALLBACK *callback;
ULONG dirsize;
dir = RtlImageDirectoryEntryToData( module, TRUE, IMAGE_DIRECTORY_ENTRY_TLS, &dirsize );
if (!dir || !dir->AddressOfCallBacks) return;
for (callback = (const PIMAGE_TLS_CALLBACK *)dir->AddressOfCallBacks; *callback; callback++)
{
if (TRACE_ON(relay))
DPRINTF("%04x:Call TLS callback (proc=%p,module=%p,reason=%s,reserved=0)\n",
GetCurrentThreadId(), *callback, module, reason_names[reason] );
__TRY
{
(*callback)( module, reason, NULL );
}
__EXCEPT_ALL
{
if (TRACE_ON(relay))
DPRINTF("%04x:exception in TLS callback (proc=%p,module=%p,reason=%s,reserved=0)\n",
GetCurrentThreadId(), callback, module, reason_names[reason] );
return;
}
__ENDTRY
if (TRACE_ON(relay))
DPRINTF("%04x:Ret TLS callback (proc=%p,module=%p,reason=%s,reserved=0)\n",
GetCurrentThreadId(), *callback, module, reason_names[reason] );
}
}
/*************************************************************************
* MODULE_InitDLL
*/
static NTSTATUS MODULE_InitDLL( WINE_MODREF *wm, UINT reason, LPVOID lpReserved )
{
WCHAR mod_name[32];
NTSTATUS status = STATUS_SUCCESS;
DLLENTRYPROC entry = wm->ldr.EntryPoint;
void *module = wm->ldr.BaseAddress;
BOOL retv = TRUE;
/* Skip calls for modules loaded with special load flags */
if (wm->ldr.Flags & LDR_DONT_RESOLVE_REFS) return STATUS_SUCCESS;
if (wm->ldr.TlsIndex != -1) call_tls_callbacks( wm->ldr.BaseAddress, reason );
if (!entry) return STATUS_SUCCESS;
if (TRACE_ON(relay))
{
size_t len = min( wm->ldr.BaseDllName.Length, sizeof(mod_name)-sizeof(WCHAR) );
memcpy( mod_name, wm->ldr.BaseDllName.Buffer, len );
mod_name[len / sizeof(WCHAR)] = 0;
DPRINTF("%04x:Call PE DLL (proc=%p,module=%p %s,reason=%s,res=%p)\n",
GetCurrentThreadId(), entry, module, debugstr_w(mod_name),
reason_names[reason], lpReserved );
}
else TRACE("(%p %s,%s,%p) - CALL\n", module, debugstr_w(wm->ldr.BaseDllName.Buffer),
reason_names[reason], lpReserved );
__TRY
{
retv = call_dll_entry_point( entry, module, reason, lpReserved );
if (!retv)
status = STATUS_DLL_INIT_FAILED;
}
__EXCEPT_ALL
{
if (TRACE_ON(relay))
DPRINTF("%04x:exception in PE entry point (proc=%p,module=%p,reason=%s,res=%p)\n",
GetCurrentThreadId(), entry, module, reason_names[reason], lpReserved );
status = GetExceptionCode();
}
__ENDTRY
/* The state of the module list may have changed due to the call
to the dll. We cannot assume that this module has not been
deleted. */
if (TRACE_ON(relay))
DPRINTF("%04x:Ret PE DLL (proc=%p,module=%p %s,reason=%s,res=%p) retval=%x\n",
GetCurrentThreadId(), entry, module, debugstr_w(mod_name),
reason_names[reason], lpReserved, retv );
else TRACE("(%p,%s,%p) - RETURN %d\n", module, reason_names[reason], lpReserved, retv );
return status;
}
/*************************************************************************
* process_attach
*
* Send the process attach notification to all DLLs the given module
* depends on (recursively). This is somewhat complicated due to the fact that
*
* - we have to respect the module dependencies, i.e. modules implicitly
* referenced by another module have to be initialized before the module
* itself can be initialized
*
* - the initialization routine of a DLL can itself call LoadLibrary,
* thereby introducing a whole new set of dependencies (even involving
* the 'old' modules) at any time during the whole process
*
* (Note that this routine can be recursively entered not only directly
* from itself, but also via LoadLibrary from one of the called initialization
* routines.)
*
* Furthermore, we need to rearrange the main WINE_MODREF list to allow
* the process *detach* notifications to be sent in the correct order.
* This must not only take into account module dependencies, but also
* 'hidden' dependencies created by modules calling LoadLibrary in their
* attach notification routine.
*
* The strategy is rather simple: we move a WINE_MODREF to the head of the
* list after the attach notification has returned. This implies that the
* detach notifications are called in the reverse of the sequence the attach
* notifications *returned*.
*
* The loader_section must be locked while calling this function.
*/
static NTSTATUS process_attach( WINE_MODREF *wm, LPVOID lpReserved )
{
NTSTATUS status = STATUS_SUCCESS;
ULONG_PTR cookie;
int i;
if (process_detaching) return status;
/* prevent infinite recursion in case of cyclical dependencies */
if ( ( wm->ldr.Flags & LDR_LOAD_IN_PROGRESS )
|| ( wm->ldr.Flags & LDR_PROCESS_ATTACHED ) )
return status;
TRACE("(%s,%p) - START\n", debugstr_w(wm->ldr.BaseDllName.Buffer), lpReserved );
/* Tag current MODREF to prevent recursive loop */
wm->ldr.Flags |= LDR_LOAD_IN_PROGRESS;
if (lpReserved) wm->ldr.LoadCount = -1; /* pin it if imported by the main exe */
if (wm->ldr.ActivationContext) RtlActivateActivationContext( 0, wm->ldr.ActivationContext, &cookie );
/* Recursively attach all DLLs this one depends on */
for ( i = 0; i < wm->nDeps; i++ )
{
if (!wm->deps[i]) continue;
if ((status = process_attach( wm->deps[i], lpReserved )) != STATUS_SUCCESS) break;
}
/* Call DLL entry point */
if (status == STATUS_SUCCESS)
{
WINE_MODREF *prev = current_modref;
current_modref = wm;
status = MODULE_InitDLL( wm, DLL_PROCESS_ATTACH, lpReserved );
if (status == STATUS_SUCCESS)
wm->ldr.Flags |= LDR_PROCESS_ATTACHED;
else
{
/* point to the name so LdrInitializeThunk can print it */
last_failed_modref = wm;
WARN("Initialization of %s failed\n", debugstr_w(wm->ldr.BaseDllName.Buffer));
}
current_modref = prev;
}
if (!wm->ldr.InInitializationOrderModuleList.Flink)
InsertTailList(&NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList,
&wm->ldr.InInitializationOrderModuleList);
if (wm->ldr.ActivationContext) RtlDeactivateActivationContext( 0, cookie );
/* Remove recursion flag */
wm->ldr.Flags &= ~LDR_LOAD_IN_PROGRESS;
TRACE("(%s,%p) - END\n", debugstr_w(wm->ldr.BaseDllName.Buffer), lpReserved );
return status;
}
/**********************************************************************
* attach_implicitly_loaded_dlls
*
* Attach to the (builtin) dlls that have been implicitly loaded because
* of a dependency at the Unix level, but not imported at the Win32 level.
*/
static void attach_implicitly_loaded_dlls( LPVOID reserved )
{
for (;;)
{
PLIST_ENTRY mark, entry;
mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
for (entry = mark->Flink; entry != mark; entry = entry->Flink)
{
LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
if (mod->Flags & (LDR_LOAD_IN_PROGRESS | LDR_PROCESS_ATTACHED)) continue;
TRACE( "found implicitly loaded %s, attaching to it\n",
debugstr_w(mod->BaseDllName.Buffer));
process_attach( CONTAINING_RECORD(mod, WINE_MODREF, ldr), reserved );
break; /* restart the search from the start */
}
if (entry == mark) break; /* nothing found */
}
}
/*************************************************************************
* process_detach
*
* Send DLL process detach notifications. See the comment about calling
* sequence at process_attach. Unless the bForceDetach flag
* is set, only DLLs with zero refcount are notified.
*/
static void process_detach( BOOL bForceDetach, LPVOID lpReserved )
{
PLIST_ENTRY mark, entry;
PLDR_MODULE mod;
RtlEnterCriticalSection( &loader_section );
if (bForceDetach) process_detaching = 1;
mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
do
{
for (entry = mark->Blink; entry != mark; entry = entry->Blink)
{
mod = CONTAINING_RECORD(entry, LDR_MODULE,
InInitializationOrderModuleList);
/* Check whether to detach this DLL */
if ( !(mod->Flags & LDR_PROCESS_ATTACHED) )
continue;
if ( mod->LoadCount && !bForceDetach )
continue;
/* Call detach notification */
mod->Flags &= ~LDR_PROCESS_ATTACHED;
MODULE_InitDLL( CONTAINING_RECORD(mod, WINE_MODREF, ldr),
DLL_PROCESS_DETACH, lpReserved );
/* Restart at head of WINE_MODREF list, as entries might have
been added and/or removed while performing the call ... */
break;
}
} while (entry != mark);
RtlLeaveCriticalSection( &loader_section );
}
/*************************************************************************
* MODULE_DllThreadAttach
*
* Send DLL thread attach notifications. These are sent in the
* reverse sequence of process detach notification.
*
*/
NTSTATUS MODULE_DllThreadAttach( LPVOID lpReserved )
{
PLIST_ENTRY mark, entry;
PLDR_MODULE mod;
NTSTATUS status;
/* don't do any attach calls if process is exiting */
if (process_detaching) return STATUS_SUCCESS;
/* FIXME: there is still a race here */
RtlEnterCriticalSection( &loader_section );
if ((status = alloc_thread_tls()) != STATUS_SUCCESS) goto done;
mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
for (entry = mark->Flink; entry != mark; entry = entry->Flink)
{
mod = CONTAINING_RECORD(entry, LDR_MODULE,
InInitializationOrderModuleList);
if ( !(mod->Flags & LDR_PROCESS_ATTACHED) )
continue;
if ( mod->Flags & LDR_NO_DLL_CALLS )
continue;
MODULE_InitDLL( CONTAINING_RECORD(mod, WINE_MODREF, ldr),
DLL_THREAD_ATTACH, lpReserved );
}
done:
RtlLeaveCriticalSection( &loader_section );
return status;
}
/******************************************************************
* LdrDisableThreadCalloutsForDll (NTDLL.@)
*
*/
NTSTATUS WINAPI LdrDisableThreadCalloutsForDll(HMODULE hModule)
{
WINE_MODREF *wm;
NTSTATUS ret = STATUS_SUCCESS;
RtlEnterCriticalSection( &loader_section );
wm = get_modref( hModule );
if (!wm || wm->ldr.TlsIndex != -1)
ret = STATUS_DLL_NOT_FOUND;
else
wm->ldr.Flags |= LDR_NO_DLL_CALLS;
RtlLeaveCriticalSection( &loader_section );
return ret;
}
/******************************************************************
* LdrFindEntryForAddress (NTDLL.@)
*
* The loader_section must be locked while calling this function
*/
NTSTATUS WINAPI LdrFindEntryForAddress(const void* addr, PLDR_MODULE* pmod)
{
PLIST_ENTRY mark, entry;
PLDR_MODULE mod;
mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
for (entry = mark->Flink; entry != mark; entry = entry->Flink)
{
mod = CONTAINING_RECORD(entry, LDR_MODULE, InMemoryOrderModuleList);
if (mod->BaseAddress <= addr &&
(const char *)addr < (char*)mod->BaseAddress + mod->SizeOfImage)
{
*pmod = mod;
return STATUS_SUCCESS;
}
if (mod->BaseAddress > addr) break;
}
return STATUS_NO_MORE_ENTRIES;
}
/******************************************************************
* LdrLockLoaderLock (NTDLL.@)
*
* Note: flags are not implemented.
* Flag 0x01 is used to raise exceptions on errors.
* Flag 0x02 is used to avoid waiting on the section (does RtlTryEnterCriticalSection instead).
*/
NTSTATUS WINAPI LdrLockLoaderLock( ULONG flags, ULONG *result, ULONG *magic )
{
if (flags) FIXME( "flags %x not supported\n", flags );
if (result) *result = 1;
if (!magic) return STATUS_INVALID_PARAMETER_3;
RtlEnterCriticalSection( &loader_section );
*magic = GetCurrentThreadId();
return STATUS_SUCCESS;
}
/******************************************************************
* LdrUnlockLoaderUnlock (NTDLL.@)
*/
NTSTATUS WINAPI LdrUnlockLoaderLock( ULONG flags, ULONG magic )
{
if (magic)
{
if (magic != GetCurrentThreadId()) return STATUS_INVALID_PARAMETER_2;
RtlLeaveCriticalSection( &loader_section );
}
return STATUS_SUCCESS;
}
/******************************************************************
* LdrGetProcedureAddress (NTDLL.@)
*/
NTSTATUS WINAPI LdrGetProcedureAddress(HMODULE module, const ANSI_STRING *name,
ULONG ord, PVOID *address)
{
IMAGE_EXPORT_DIRECTORY *exports;
DWORD exp_size;
NTSTATUS ret = STATUS_PROCEDURE_NOT_FOUND;
RtlEnterCriticalSection( &loader_section );
/* check if the module itself is invalid to return the proper error */
if (!get_modref( module )) ret = STATUS_DLL_NOT_FOUND;
else if ((exports = RtlImageDirectoryEntryToData( module, TRUE,
IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size )))
{
LPCWSTR load_path = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
void *proc = name ? find_named_export( module, exports, exp_size, name->Buffer, -1, load_path )
: find_ordinal_export( module, exports, exp_size, ord - exports->Base, load_path );
if (proc)
{
*address = proc;
ret = STATUS_SUCCESS;
}
}
RtlLeaveCriticalSection( &loader_section );
return ret;
}
/***********************************************************************
* is_fake_dll
*
* Check if a loaded native dll is a Wine fake dll.
*/
static BOOL is_fake_dll( HANDLE handle )
{
static const char fakedll_signature[] = "Wine placeholder DLL";
char buffer[sizeof(IMAGE_DOS_HEADER) + sizeof(fakedll_signature)];
const IMAGE_DOS_HEADER *dos = (const IMAGE_DOS_HEADER *)buffer;
IO_STATUS_BLOCK io;
LARGE_INTEGER offset;
offset.QuadPart = 0;
if (NtReadFile( handle, 0, NULL, 0, &io, buffer, sizeof(buffer), &offset, NULL )) return FALSE;
if (io.Information < sizeof(buffer)) return FALSE;
if (dos->e_magic != IMAGE_DOS_SIGNATURE) return FALSE;
if (dos->e_lfanew >= sizeof(*dos) + sizeof(fakedll_signature) &&
!memcmp( dos + 1, fakedll_signature, sizeof(fakedll_signature) )) return TRUE;
return FALSE;
}
/***********************************************************************
* get_builtin_fullname
*
* Build the full pathname for a builtin dll.
*/
static WCHAR *get_builtin_fullname( const WCHAR *path, const char *filename )
{
static const WCHAR soW[] = {'.','s','o',0};
WCHAR *p, *fullname;
size_t i, len = strlen(filename);
/* check if path can correspond to the dll we have */
if (path && (p = strrchrW( path, '\\' )))
{
p++;
for (i = 0; i < len; i++)
if (tolowerW(p[i]) != tolowerW( (WCHAR)filename[i]) ) break;
if (i == len && (!p[len] || !strcmpiW( p + len, soW )))
{
/* the filename matches, use path as the full path */
len += p - path;
if ((fullname = RtlAllocateHeap( GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR) )))
{
memcpy( fullname, path, len * sizeof(WCHAR) );
fullname[len] = 0;
}
return fullname;
}
}
if ((fullname = RtlAllocateHeap( GetProcessHeap(), 0,
system_dir.MaximumLength + (len + 1) * sizeof(WCHAR) )))
{
memcpy( fullname, system_dir.Buffer, system_dir.Length );
p = fullname + system_dir.Length / sizeof(WCHAR);
if (p > fullname && p[-1] != '\\') *p++ = '\\';
ascii_to_unicode( p, filename, len + 1 );
}
return fullname;
}
/***********************************************************************
* load_builtin_callback
*
* Load a library in memory; callback function for wine_dll_register
*/
static void load_builtin_callback( void *module, const char *filename )
{
static const WCHAR emptyW[1];
IMAGE_NT_HEADERS *nt;
WINE_MODREF *wm;
WCHAR *fullname;
const WCHAR *load_path;
if (!module)
{
ERR("could not map image for %s\n", filename ? filename : "main exe" );
return;
}
if (!(nt = RtlImageNtHeader( module )))
{
ERR( "bad module for %s\n", filename ? filename : "main exe" );
builtin_load_info->status = STATUS_INVALID_IMAGE_FORMAT;
return;
}
virtual_create_system_view( module, nt->OptionalHeader.SizeOfImage,
VPROT_SYSTEM | VPROT_IMAGE | VPROT_COMMITTED |
VPROT_READ | VPROT_WRITECOPY | VPROT_EXEC );
/* create the MODREF */
if (!(fullname = get_builtin_fullname( builtin_load_info->filename, filename )))
{
ERR( "can't load %s\n", filename );
builtin_load_info->status = STATUS_NO_MEMORY;
return;
}
wm = alloc_module( module, fullname );
RtlFreeHeap( GetProcessHeap(), 0, fullname );
if (!wm)
{
ERR( "can't load %s\n", filename );
builtin_load_info->status = STATUS_NO_MEMORY;
return;
}
wm->ldr.Flags |= LDR_WINE_INTERNAL;
if (!(nt->FileHeader.Characteristics & IMAGE_FILE_DLL) &&
!NtCurrentTeb()->Peb->ImageBaseAddress) /* if we already have an executable, ignore this one */
{
NtCurrentTeb()->Peb->ImageBaseAddress = module;
}
else
{
/* fixup imports */
load_path = builtin_load_info->load_path;
if (!load_path) load_path = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
if (!load_path) load_path = emptyW;
if (fixup_imports( wm, load_path ) != STATUS_SUCCESS)
{
/* the module has only be inserted in the load & memory order lists */
RemoveEntryList(&wm->ldr.InLoadOrderModuleList);
RemoveEntryList(&wm->ldr.InMemoryOrderModuleList);
/* FIXME: free the modref */
builtin_load_info->status = STATUS_DLL_NOT_FOUND;
return;
}
}
builtin_load_info->wm = wm;
TRACE( "loaded %s %p %p\n", filename, wm, module );
/* send the DLL load event */
SERVER_START_REQ( load_dll )
{
req->handle = 0;
req->base = wine_server_client_ptr( module );
req->size = nt->OptionalHeader.SizeOfImage;
req->dbg_offset = nt->FileHeader.PointerToSymbolTable;
req->dbg_size = nt->FileHeader.NumberOfSymbols;
req->name = wine_server_client_ptr( &wm->ldr.FullDllName.Buffer );
wine_server_add_data( req, wm->ldr.FullDllName.Buffer, wm->ldr.FullDllName.Length );
wine_server_call( req );
}
SERVER_END_REQ;
/* setup relay debugging entry points */
if (TRACE_ON(relay)) RELAY_SetupDLL( module );
}
/******************************************************************************
* load_native_dll (internal)
*/
static NTSTATUS load_native_dll( LPCWSTR load_path, LPCWSTR name, HANDLE file,
DWORD flags, WINE_MODREF** pwm )
{
void *module;
HANDLE mapping;
LARGE_INTEGER size;
IMAGE_NT_HEADERS *nt;
SIZE_T len = 0;
WINE_MODREF *wm;
NTSTATUS status;
TRACE("Trying native dll %s\n", debugstr_w(name));
size.QuadPart = 0;
status = NtCreateSection( &mapping, STANDARD_RIGHTS_REQUIRED | SECTION_QUERY | SECTION_MAP_READ,
NULL, &size, PAGE_READONLY, SEC_IMAGE, file );
if (status != STATUS_SUCCESS) return status;
module = NULL;
status = NtMapViewOfSection( mapping, NtCurrentProcess(),
&module, 0, 0, &size, &len, ViewShare, 0, PAGE_READONLY );
NtClose( mapping );
if (status != STATUS_SUCCESS) return status;
/* create the MODREF */
if (!(wm = alloc_module( module, name ))) return STATUS_NO_MEMORY;
/* fixup imports */
if (!(flags & DONT_RESOLVE_DLL_REFERENCES))
{
if ((status = fixup_imports( wm, load_path )) != STATUS_SUCCESS)
{
/* the module has only be inserted in the load & memory order lists */
RemoveEntryList(&wm->ldr.InLoadOrderModuleList);
RemoveEntryList(&wm->ldr.InMemoryOrderModuleList);
/* FIXME: there are several more dangling references
* left. Including dlls loaded by this dll before the
* failed one. Unrolling is rather difficult with the
* current structure and we can leave them lying
* around with no problems, so we don't care.
* As these might reference our wm, we don't free it.
*/
return status;
}
}
/* send DLL load event */
nt = RtlImageNtHeader( module );
SERVER_START_REQ( load_dll )
{
req->handle = wine_server_obj_handle( file );
req->base = wine_server_client_ptr( module );
req->size = nt->OptionalHeader.SizeOfImage;
req->dbg_offset = nt->FileHeader.PointerToSymbolTable;
req->dbg_size = nt->FileHeader.NumberOfSymbols;
req->name = wine_server_client_ptr( &wm->ldr.FullDllName.Buffer );
wine_server_add_data( req, wm->ldr.FullDllName.Buffer, wm->ldr.FullDllName.Length );
wine_server_call( req );
}
SERVER_END_REQ;
if ((wm->ldr.Flags & LDR_IMAGE_IS_DLL) && TRACE_ON(snoop)) SNOOP_SetupDLL( module );
TRACE_(loaddll)( "Loaded %s at %p: native\n", debugstr_w(wm->ldr.FullDllName.Buffer), module );
wm->ldr.LoadCount = 1;
*pwm = wm;
return STATUS_SUCCESS;
}
/***********************************************************************
* load_builtin_dll
*/
static NTSTATUS load_builtin_dll( LPCWSTR load_path, LPCWSTR path, HANDLE file,
DWORD flags, WINE_MODREF** pwm )
{
char error[256], dllname[MAX_PATH];
const WCHAR *name, *p;
DWORD len, i;
void *handle = NULL;
struct builtin_load_info info, *prev_info;
/* Fix the name in case we have a full path and extension */
name = path;
if ((p = strrchrW( name, '\\' ))) name = p + 1;
if ((p = strrchrW( name, '/' ))) name = p + 1;
/* load_library will modify info.status. Note also that load_library can be
* called several times, if the .so file we're loading has dependencies.
* info.status will gather all the errors we may get while loading all these
* libraries
*/
info.load_path = load_path;
info.filename = NULL;
info.status = STATUS_SUCCESS;
info.wm = NULL;
if (file) /* we have a real file, try to load it */
{
UNICODE_STRING nt_name;
ANSI_STRING unix_name;
TRACE("Trying built-in %s\n", debugstr_w(path));
if (!RtlDosPathNameToNtPathName_U( path, &nt_name, NULL, NULL ))
return STATUS_DLL_NOT_FOUND;
if (wine_nt_to_unix_file_name( &nt_name, &unix_name, FILE_OPEN, FALSE ))
{
RtlFreeUnicodeString( &nt_name );
return STATUS_DLL_NOT_FOUND;
}
prev_info = builtin_load_info;
info.filename = nt_name.Buffer + 4; /* skip \??\ */
builtin_load_info = &info;
handle = wine_dlopen( unix_name.Buffer, RTLD_NOW, error, sizeof(error) );
builtin_load_info = prev_info;
RtlFreeUnicodeString( &nt_name );
RtlFreeHeap( GetProcessHeap(), 0, unix_name.Buffer );
if (!handle)
{
WARN( "failed to load .so lib for builtin %s: %s\n", debugstr_w(path), error );
return STATUS_INVALID_IMAGE_FORMAT;
}
}
else
{
int file_exists;
TRACE("Trying built-in %s\n", debugstr_w(name));
/* we don't want to depend on the current codepage here */
len = strlenW( name ) + 1;
if (len >= sizeof(dllname)) return STATUS_NAME_TOO_LONG;
for (i = 0; i < len; i++)
{
if (name[i] > 127) return STATUS_DLL_NOT_FOUND;
dllname[i] = (char)name[i];
if (dllname[i] >= 'A' && dllname[i] <= 'Z') dllname[i] += 'a' - 'A';
}
prev_info = builtin_load_info;
builtin_load_info = &info;
handle = wine_dll_load( dllname, error, sizeof(error), &file_exists );
builtin_load_info = prev_info;
if (!handle)
{
if (!file_exists)
{
/* The file does not exist -> WARN() */
WARN("cannot open .so lib for builtin %s: %s\n", debugstr_w(name), error);
return STATUS_DLL_NOT_FOUND;
}
/* ERR() for all other errors (missing functions, ...) */
ERR("failed to load .so lib for builtin %s: %s\n", debugstr_w(name), error );
return STATUS_PROCEDURE_NOT_FOUND;
}
}
if (info.status != STATUS_SUCCESS)
{
wine_dll_unload( handle );
return info.status;
}
if (!info.wm)
{
PLIST_ENTRY mark, entry;
/* The constructor wasn't called, this means the .so is already
* loaded under a different name. Try to find the wm for it. */
mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
for (entry = mark->Flink; entry != mark; entry = entry->Flink)
{
LDR_MODULE *mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
if (mod->Flags & LDR_WINE_INTERNAL && mod->SectionHandle == handle)
{
info.wm = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
TRACE( "Found %s at %p for builtin %s\n",
debugstr_w(info.wm->ldr.FullDllName.Buffer), info.wm->ldr.BaseAddress, debugstr_w(path) );
break;
}
}
wine_dll_unload( handle ); /* release the libdl refcount */
if (!info.wm) return STATUS_INVALID_IMAGE_FORMAT;
if (info.wm->ldr.LoadCount != -1) info.wm->ldr.LoadCount++;
}
else
{
TRACE_(loaddll)( "Loaded %s at %p: builtin\n", debugstr_w(info.wm->ldr.FullDllName.Buffer), info.wm->ldr.BaseAddress );
info.wm->ldr.LoadCount = 1;
info.wm->ldr.SectionHandle = handle;
}
*pwm = info.wm;
return STATUS_SUCCESS;
}
/***********************************************************************
* find_actctx_dll
*
* Find the full path (if any) of the dll from the activation context.
*/
static NTSTATUS find_actctx_dll( LPCWSTR libname, LPWSTR *fullname )
{
static const WCHAR winsxsW[] = {'\\','w','i','n','s','x','s','\\'};
static const WCHAR dotManifestW[] = {'.','m','a','n','i','f','e','s','t',0};
ACTIVATION_CONTEXT_ASSEMBLY_DETAILED_INFORMATION *info;
ACTCTX_SECTION_KEYED_DATA data;
UNICODE_STRING nameW;
NTSTATUS status;
SIZE_T needed, size = 1024;
WCHAR *p;
RtlInitUnicodeString( &nameW, libname );
data.cbSize = sizeof(data);
status = RtlFindActivationContextSectionString( FIND_ACTCTX_SECTION_KEY_RETURN_HACTCTX, NULL,
ACTIVATION_CONTEXT_SECTION_DLL_REDIRECTION,
&nameW, &data );
if (status != STATUS_SUCCESS) return status;
for (;;)
{
if (!(info = RtlAllocateHeap( GetProcessHeap(), 0, size )))
{
status = STATUS_NO_MEMORY;
goto done;
}
status = RtlQueryInformationActivationContext( 0, data.hActCtx, &data.ulAssemblyRosterIndex,
AssemblyDetailedInformationInActivationContext,
info, size, &needed );
if (status == STATUS_SUCCESS) break;
if (status != STATUS_BUFFER_TOO_SMALL) goto done;
RtlFreeHeap( GetProcessHeap(), 0, info );
size = needed;
/* restart with larger buffer */
}
if ((p = strrchrW( info->lpAssemblyManifestPath, '\\' )))
{
DWORD dirlen = info->ulAssemblyDirectoryNameLength / sizeof(WCHAR);
p++;
if (strncmpiW( p, info->lpAssemblyDirectoryName, dirlen ) || strcmpiW( p + dirlen, dotManifestW ))
{
/* manifest name does not match directory name, so it's not a global
* windows/winsxs manifest; use the manifest directory name instead */
dirlen = p - info->lpAssemblyManifestPath;
needed = (dirlen + 1) * sizeof(WCHAR) + nameW.Length;
if (!(*fullname = p = RtlAllocateHeap( GetProcessHeap(), 0, needed )))
{
status = STATUS_NO_MEMORY;
goto done;
}
memcpy( p, info->lpAssemblyManifestPath, dirlen * sizeof(WCHAR) );
p += dirlen;
strcpyW( p, libname );
goto done;
}
}
needed = (windows_dir.Length + sizeof(winsxsW) + info->ulAssemblyDirectoryNameLength +
nameW.Length + 2*sizeof(WCHAR));
if (!(*fullname = p = RtlAllocateHeap( GetProcessHeap(), 0, needed )))
{
status = STATUS_NO_MEMORY;
goto done;
}
memcpy( p, windows_dir.Buffer, windows_dir.Length );
p += windows_dir.Length / sizeof(WCHAR);
memcpy( p, winsxsW, sizeof(winsxsW) );
p += sizeof(winsxsW) / sizeof(WCHAR);
memcpy( p, info->lpAssemblyDirectoryName, info->ulAssemblyDirectoryNameLength );
p += info->ulAssemblyDirectoryNameLength / sizeof(WCHAR);
*p++ = '\\';
strcpyW( p, libname );
done:
RtlFreeHeap( GetProcessHeap(), 0, info );
RtlReleaseActivationContext( data.hActCtx );
return status;
}
/***********************************************************************
* find_dll_file
*
* Find the file (or already loaded module) for a given dll name.
*/
static NTSTATUS find_dll_file( const WCHAR *load_path, const WCHAR *libname,
WCHAR *filename, ULONG *size, WINE_MODREF **pwm, HANDLE *handle )
{
OBJECT_ATTRIBUTES attr;
IO_STATUS_BLOCK io;
UNICODE_STRING nt_name;
WCHAR *file_part, *ext, *dllname;
ULONG len;
/* first append .dll if needed */
dllname = NULL;
if (!(ext = strrchrW( libname, '.')) || strchrW( ext, '/' ) || strchrW( ext, '\\'))
{
if (!(dllname = RtlAllocateHeap( GetProcessHeap(), 0,
(strlenW(libname) * sizeof(WCHAR)) + sizeof(dllW) )))
return STATUS_NO_MEMORY;
strcpyW( dllname, libname );
strcatW( dllname, dllW );
libname = dllname;
}
nt_name.Buffer = NULL;
if (!contains_path( libname ))
{
NTSTATUS status;
WCHAR *fullname = NULL;
if ((*pwm = find_basename_module( libname )) != NULL) goto found;
status = find_actctx_dll( libname, &fullname );
if (status == STATUS_SUCCESS)
{
TRACE ("found %s for %s\n", debugstr_w(fullname), debugstr_w(libname) );
RtlFreeHeap( GetProcessHeap(), 0, dllname );
libname = dllname = fullname;
}
else if (status != STATUS_SXS_KEY_NOT_FOUND)
{
RtlFreeHeap( GetProcessHeap(), 0, dllname );
return status;
}
}
if (RtlDetermineDosPathNameType_U( libname ) == RELATIVE_PATH)
{
/* we need to search for it */
len = RtlDosSearchPath_U( load_path, libname, NULL, *size, filename, &file_part );
if (len)
{
if (len >= *size) goto overflow;
if ((*pwm = find_fullname_module( filename )) || !handle) goto found;
if (!RtlDosPathNameToNtPathName_U( filename, &nt_name, NULL, NULL ))
{
RtlFreeHeap( GetProcessHeap(), 0, dllname );
return STATUS_NO_MEMORY;
}
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.Attributes = OBJ_CASE_INSENSITIVE;
attr.ObjectName = &nt_name;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
if (NtOpenFile( handle, GENERIC_READ, &attr, &io, FILE_SHARE_READ|FILE_SHARE_DELETE, 0 )) *handle = 0;
goto found;
}
/* not found */
if (!contains_path( libname ))
{
/* if libname doesn't contain a path at all, we simply return the name as is,
* to be loaded as builtin */
len = strlenW(libname) * sizeof(WCHAR);
if (len >= *size) goto overflow;
strcpyW( filename, libname );
goto found;
}
}
/* absolute path name, or relative path name but not found above */
if (!RtlDosPathNameToNtPathName_U( libname, &nt_name, &file_part, NULL ))
{
RtlFreeHeap( GetProcessHeap(), 0, dllname );
return STATUS_NO_MEMORY;
}
len = nt_name.Length - 4*sizeof(WCHAR); /* for \??\ prefix */
if (len >= *size) goto overflow;
memcpy( filename, nt_name.Buffer + 4, len + sizeof(WCHAR) );
if (!(*pwm = find_fullname_module( filename )) && handle)
{
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.Attributes = OBJ_CASE_INSENSITIVE;
attr.ObjectName = &nt_name;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
if (NtOpenFile( handle, GENERIC_READ, &attr, &io, FILE_SHARE_READ|FILE_SHARE_DELETE, 0 )) *handle = 0;
}
found:
RtlFreeUnicodeString( &nt_name );
RtlFreeHeap( GetProcessHeap(), 0, dllname );
return STATUS_SUCCESS;
overflow:
RtlFreeUnicodeString( &nt_name );
RtlFreeHeap( GetProcessHeap(), 0, dllname );
*size = len + sizeof(WCHAR);
return STATUS_BUFFER_TOO_SMALL;
}
/***********************************************************************
* load_dll (internal)
*
* Load a PE style module according to the load order.
* The loader_section must be locked while calling this function.
*/
static NTSTATUS load_dll( LPCWSTR load_path, LPCWSTR libname, DWORD flags, WINE_MODREF** pwm )
{
enum loadorder loadorder;
WCHAR buffer[32];
WCHAR *filename;
ULONG size;
WINE_MODREF *main_exe;
HANDLE handle = 0;
NTSTATUS nts;
TRACE( "looking for %s in %s\n", debugstr_w(libname), debugstr_w(load_path) );
*pwm = NULL;
filename = buffer;
size = sizeof(buffer);
for (;;)
{
nts = find_dll_file( load_path, libname, filename, &size, pwm, &handle );
if (nts == STATUS_SUCCESS) break;
if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
if (nts != STATUS_BUFFER_TOO_SMALL) return nts;
/* grow the buffer and retry */
if (!(filename = RtlAllocateHeap( GetProcessHeap(), 0, size ))) return STATUS_NO_MEMORY;
}
if (*pwm) /* found already loaded module */
{
if ((*pwm)->ldr.LoadCount != -1) (*pwm)->ldr.LoadCount++;
if (!(flags & DONT_RESOLVE_DLL_REFERENCES)) fixup_imports( *pwm, load_path );
TRACE("Found %s for %s at %p, count=%d\n",
debugstr_w((*pwm)->ldr.FullDllName.Buffer), debugstr_w(libname),
(*pwm)->ldr.BaseAddress, (*pwm)->ldr.LoadCount);
if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
return STATUS_SUCCESS;
}
main_exe = get_modref( NtCurrentTeb()->Peb->ImageBaseAddress );
loadorder = get_load_order( main_exe ? main_exe->ldr.BaseDllName.Buffer : NULL, filename );
if (handle && is_fake_dll( handle ))
{
TRACE( "%s is a fake Wine dll\n", debugstr_w(filename) );
NtClose( handle );
handle = 0;
}
switch(loadorder)
{
case LO_INVALID:
nts = STATUS_NO_MEMORY;
break;
case LO_DISABLED:
nts = STATUS_DLL_NOT_FOUND;
break;
case LO_NATIVE:
case LO_NATIVE_BUILTIN:
if (!handle) nts = STATUS_DLL_NOT_FOUND;
else
{
nts = load_native_dll( load_path, filename, handle, flags, pwm );
if (nts == STATUS_INVALID_FILE_FOR_SECTION)
/* not in PE format, maybe it's a builtin */
nts = load_builtin_dll( load_path, filename, handle, flags, pwm );
}
if (nts == STATUS_DLL_NOT_FOUND && loadorder == LO_NATIVE_BUILTIN)
nts = load_builtin_dll( load_path, filename, 0, flags, pwm );
break;
case LO_BUILTIN:
case LO_BUILTIN_NATIVE:
case LO_DEFAULT: /* default is builtin,native */
nts = load_builtin_dll( load_path, filename, handle, flags, pwm );
if (!handle) break; /* nothing else we can try */
/* file is not a builtin library, try without using the specified file */
if (nts != STATUS_SUCCESS)
nts = load_builtin_dll( load_path, filename, 0, flags, pwm );
if (nts == STATUS_SUCCESS && loadorder == LO_DEFAULT &&
(MODULE_InitDLL( *pwm, DLL_WINE_PREATTACH, NULL ) != STATUS_SUCCESS))
{
/* stub-only dll, try native */
TRACE( "%s pre-attach returned FALSE, preferring native\n", debugstr_w(filename) );
LdrUnloadDll( (*pwm)->ldr.BaseAddress );
nts = STATUS_DLL_NOT_FOUND;
}
if (nts == STATUS_DLL_NOT_FOUND && loadorder != LO_BUILTIN)
nts = load_native_dll( load_path, filename, handle, flags, pwm );
break;
}
if (nts == STATUS_SUCCESS)
{
/* Initialize DLL just loaded */
TRACE("Loaded module %s (%s) at %p\n", debugstr_w(filename),
((*pwm)->ldr.Flags & LDR_WINE_INTERNAL) ? "builtin" : "native",
(*pwm)->ldr.BaseAddress);
if (handle) NtClose( handle );
if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
return nts;
}
WARN("Failed to load module %s; status=%x\n", debugstr_w(libname), nts);
if (handle) NtClose( handle );
if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
return nts;
}
/******************************************************************
* LdrLoadDll (NTDLL.@)
*/
NTSTATUS WINAPI LdrLoadDll(LPCWSTR path_name, DWORD flags,
const UNICODE_STRING *libname, HMODULE* hModule)
{
WINE_MODREF *wm;
NTSTATUS nts;
RtlEnterCriticalSection( &loader_section );
if (!path_name) path_name = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
nts = load_dll( path_name, libname->Buffer, flags, &wm );
if (nts == STATUS_SUCCESS && !(wm->ldr.Flags & LDR_DONT_RESOLVE_REFS))
{
nts = process_attach( wm, NULL );
if (nts != STATUS_SUCCESS)
{
LdrUnloadDll(wm->ldr.BaseAddress);
wm = NULL;
}
}
*hModule = (wm) ? wm->ldr.BaseAddress : NULL;
RtlLeaveCriticalSection( &loader_section );
return nts;
}
/******************************************************************
* LdrGetDllHandle (NTDLL.@)
*/
NTSTATUS WINAPI LdrGetDllHandle( LPCWSTR load_path, ULONG flags, const UNICODE_STRING *name, HMODULE *base )
{
NTSTATUS status;
WCHAR buffer[128];
WCHAR *filename;
ULONG size;
WINE_MODREF *wm;
RtlEnterCriticalSection( &loader_section );
if (!load_path) load_path = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
filename = buffer;
size = sizeof(buffer);
for (;;)
{
status = find_dll_file( load_path, name->Buffer, filename, &size, &wm, NULL );
if (filename != buffer) RtlFreeHeap( GetProcessHeap(), 0, filename );
if (status != STATUS_BUFFER_TOO_SMALL) break;
/* grow the buffer and retry */
if (!(filename = RtlAllocateHeap( GetProcessHeap(), 0, size )))
{
status = STATUS_NO_MEMORY;
break;
}
}
if (status == STATUS_SUCCESS)
{
if (wm) *base = wm->ldr.BaseAddress;
else status = STATUS_DLL_NOT_FOUND;
}
RtlLeaveCriticalSection( &loader_section );
TRACE( "%s -> %p (load path %s)\n", debugstr_us(name), status ? NULL : *base, debugstr_w(load_path) );
return status;
}
/******************************************************************
* LdrAddRefDll (NTDLL.@)
*/
NTSTATUS WINAPI LdrAddRefDll( ULONG flags, HMODULE module )
{
NTSTATUS ret = STATUS_SUCCESS;
WINE_MODREF *wm;
if (flags) FIXME( "%p flags %x not implemented\n", module, flags );
RtlEnterCriticalSection( &loader_section );
if ((wm = get_modref( module )))
{
if (wm->ldr.LoadCount != -1) wm->ldr.LoadCount++;
TRACE( "(%s) ldr.LoadCount: %d\n", debugstr_w(wm->ldr.BaseDllName.Buffer), wm->ldr.LoadCount );
}
else ret = STATUS_INVALID_PARAMETER;
RtlLeaveCriticalSection( &loader_section );
return ret;
}
/***********************************************************************
* LdrProcessRelocationBlock (NTDLL.@)
*
* Apply relocations to a given page of a mapped PE image.
*/
IMAGE_BASE_RELOCATION * WINAPI LdrProcessRelocationBlock( void *page, UINT count,
USHORT *relocs, INT_PTR delta )
{
while (count--)
{
USHORT offset = *relocs & 0xfff;
int type = *relocs >> 12;
switch(type)
{
case IMAGE_REL_BASED_ABSOLUTE:
break;
#ifdef __i386__
case IMAGE_REL_BASED_HIGH:
*(short *)((char *)page + offset) += HIWORD(delta);
break;
case IMAGE_REL_BASED_LOW:
*(short *)((char *)page + offset) += LOWORD(delta);
break;
case IMAGE_REL_BASED_HIGHLOW:
*(int *)((char *)page + offset) += delta;
break;
#elif defined(__x86_64__)
case IMAGE_REL_BASED_DIR64:
*(INT_PTR *)((char *)page + offset) += delta;
break;
#endif
default:
FIXME("Unknown/unsupported fixup type %x.\n", type);
return NULL;
}
relocs++;
}
return (IMAGE_BASE_RELOCATION *)relocs; /* return address of next block */
}
/******************************************************************
* LdrQueryProcessModuleInformation
*
*/
NTSTATUS WINAPI LdrQueryProcessModuleInformation(PSYSTEM_MODULE_INFORMATION smi,
ULONG buf_size, ULONG* req_size)
{
SYSTEM_MODULE* sm = &smi->Modules[0];
ULONG size = sizeof(ULONG);
NTSTATUS nts = STATUS_SUCCESS;
ANSI_STRING str;
char* ptr;
PLIST_ENTRY mark, entry;
PLDR_MODULE mod;
WORD id = 0;
smi->ModulesCount = 0;
RtlEnterCriticalSection( &loader_section );
mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
for (entry = mark->Flink; entry != mark; entry = entry->Flink)
{
mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
size += sizeof(*sm);
if (size <= buf_size)
{
sm->Reserved1 = 0; /* FIXME */
sm->Reserved2 = 0; /* FIXME */
sm->ImageBaseAddress = mod->BaseAddress;
sm->ImageSize = mod->SizeOfImage;
sm->Flags = mod->Flags;
sm->Id = id++;
sm->Rank = 0; /* FIXME */
sm->Unknown = 0; /* FIXME */
str.Length = 0;
str.MaximumLength = MAXIMUM_FILENAME_LENGTH;
str.Buffer = (char*)sm->Name;
RtlUnicodeStringToAnsiString(&str, &mod->FullDllName, FALSE);
ptr = strrchr(str.Buffer, '\\');
sm->NameOffset = (ptr != NULL) ? (ptr - str.Buffer + 1) : 0;
smi->ModulesCount++;
sm++;
}
else nts = STATUS_INFO_LENGTH_MISMATCH;
}
RtlLeaveCriticalSection( &loader_section );
if (req_size) *req_size = size;
return nts;
}
/******************************************************************
* RtlDllShutdownInProgress (NTDLL.@)
*/
BOOLEAN WINAPI RtlDllShutdownInProgress(void)
{
return process_detaching;
}
/******************************************************************
* LdrShutdownProcess (NTDLL.@)
*
*/
void WINAPI LdrShutdownProcess(void)
{
TRACE("()\n");
process_detach( TRUE, (LPVOID)1 );
}
/******************************************************************
* LdrShutdownThread (NTDLL.@)
*
*/
void WINAPI LdrShutdownThread(void)
{
PLIST_ENTRY mark, entry;
PLDR_MODULE mod;
TRACE("()\n");
/* don't do any detach calls if process is exiting */
if (process_detaching) return;
/* FIXME: there is still a race here */
RtlEnterCriticalSection( &loader_section );
mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
for (entry = mark->Blink; entry != mark; entry = entry->Blink)
{
mod = CONTAINING_RECORD(entry, LDR_MODULE,
InInitializationOrderModuleList);
if ( !(mod->Flags & LDR_PROCESS_ATTACHED) )
continue;
if ( mod->Flags & LDR_NO_DLL_CALLS )
continue;
MODULE_InitDLL( CONTAINING_RECORD(mod, WINE_MODREF, ldr),
DLL_THREAD_DETACH, NULL );
}
RtlLeaveCriticalSection( &loader_section );
RtlFreeHeap( GetProcessHeap(), 0, NtCurrentTeb()->ThreadLocalStoragePointer );
}
/***********************************************************************
* free_modref
*
*/
static void free_modref( WINE_MODREF *wm )
{
RemoveEntryList(&wm->ldr.InLoadOrderModuleList);
RemoveEntryList(&wm->ldr.InMemoryOrderModuleList);
if (wm->ldr.InInitializationOrderModuleList.Flink)
RemoveEntryList(&wm->ldr.InInitializationOrderModuleList);
TRACE(" unloading %s\n", debugstr_w(wm->ldr.FullDllName.Buffer));
if (!TRACE_ON(module))
TRACE_(loaddll)("Unloaded module %s : %s\n",
debugstr_w(wm->ldr.FullDllName.Buffer),
(wm->ldr.Flags & LDR_WINE_INTERNAL) ? "builtin" : "native" );
SERVER_START_REQ( unload_dll )
{
req->base = wine_server_client_ptr( wm->ldr.BaseAddress );
wine_server_call( req );
}
SERVER_END_REQ;
RtlReleaseActivationContext( wm->ldr.ActivationContext );
NtUnmapViewOfSection( NtCurrentProcess(), wm->ldr.BaseAddress );
if (wm->ldr.Flags & LDR_WINE_INTERNAL) wine_dll_unload( wm->ldr.SectionHandle );
if (cached_modref == wm) cached_modref = NULL;
RtlFreeUnicodeString( &wm->ldr.FullDllName );
RtlFreeHeap( GetProcessHeap(), 0, wm->deps );
RtlFreeHeap( GetProcessHeap(), 0, wm );
}
/***********************************************************************
* MODULE_FlushModrefs
*
* Remove all unused modrefs and call the internal unloading routines
* for the library type.
*
* The loader_section must be locked while calling this function.
*/
static void MODULE_FlushModrefs(void)
{
PLIST_ENTRY mark, entry, prev;
PLDR_MODULE mod;
WINE_MODREF*wm;
mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
for (entry = mark->Blink; entry != mark; entry = prev)
{
mod = CONTAINING_RECORD(entry, LDR_MODULE, InInitializationOrderModuleList);
wm = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
prev = entry->Blink;
if (!mod->LoadCount) free_modref( wm );
}
/* check load order list too for modules that haven't been initialized yet */
mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
for (entry = mark->Blink; entry != mark; entry = prev)
{
mod = CONTAINING_RECORD(entry, LDR_MODULE, InLoadOrderModuleList);
wm = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
prev = entry->Blink;
if (!mod->LoadCount) free_modref( wm );
}
}
/***********************************************************************
* MODULE_DecRefCount
*
* The loader_section must be locked while calling this function.
*/
static void MODULE_DecRefCount( WINE_MODREF *wm )
{
int i;
if ( wm->ldr.Flags & LDR_UNLOAD_IN_PROGRESS )
return;
if ( wm->ldr.LoadCount <= 0 )
return;
--wm->ldr.LoadCount;
TRACE("(%s) ldr.LoadCount: %d\n", debugstr_w(wm->ldr.BaseDllName.Buffer), wm->ldr.LoadCount );
if ( wm->ldr.LoadCount == 0 )
{
wm->ldr.Flags |= LDR_UNLOAD_IN_PROGRESS;
for ( i = 0; i < wm->nDeps; i++ )
if ( wm->deps[i] )
MODULE_DecRefCount( wm->deps[i] );
wm->ldr.Flags &= ~LDR_UNLOAD_IN_PROGRESS;
}
}
/******************************************************************
* LdrUnloadDll (NTDLL.@)
*
*
*/
NTSTATUS WINAPI LdrUnloadDll( HMODULE hModule )
{
NTSTATUS retv = STATUS_SUCCESS;
TRACE("(%p)\n", hModule);
RtlEnterCriticalSection( &loader_section );
/* if we're stopping the whole process (and forcing the removal of all
* DLLs) the library will be freed anyway
*/
if (!process_detaching)
{
WINE_MODREF *wm;
free_lib_count++;
if ((wm = get_modref( hModule )) != NULL)
{
TRACE("(%s) - START\n", debugstr_w(wm->ldr.BaseDllName.Buffer));
/* Recursively decrement reference counts */
MODULE_DecRefCount( wm );
/* Call process detach notifications */
if ( free_lib_count <= 1 )
{
process_detach( FALSE, NULL );
MODULE_FlushModrefs();
}
TRACE("END\n");
}
else
retv = STATUS_DLL_NOT_FOUND;
free_lib_count--;
}
RtlLeaveCriticalSection( &loader_section );
return retv;
}
/***********************************************************************
* RtlImageNtHeader (NTDLL.@)
*/
PIMAGE_NT_HEADERS WINAPI RtlImageNtHeader(HMODULE hModule)
{
IMAGE_NT_HEADERS *ret;
__TRY
{
IMAGE_DOS_HEADER *dos = (IMAGE_DOS_HEADER *)hModule;
ret = NULL;
if (dos->e_magic == IMAGE_DOS_SIGNATURE)
{
ret = (IMAGE_NT_HEADERS *)((char *)dos + dos->e_lfanew);
if (ret->Signature != IMAGE_NT_SIGNATURE) ret = NULL;
}
}
__EXCEPT_PAGE_FAULT
{
return NULL;
}
__ENDTRY
return ret;
}
/***********************************************************************
* attach_process_dlls
*
* Initial attach to all the dlls loaded by the process.
*/
static NTSTATUS attach_process_dlls( void *wm )
{
NTSTATUS status;
pthread_sigmask( SIG_UNBLOCK, &server_block_set, NULL );
RtlEnterCriticalSection( &loader_section );
if ((status = process_attach( wm, (LPVOID)1 )) != STATUS_SUCCESS)
{
if (last_failed_modref)
ERR( "%s failed to initialize, aborting\n",
debugstr_w(last_failed_modref->ldr.BaseDllName.Buffer) + 1 );
return status;
}
attach_implicitly_loaded_dlls( (LPVOID)1 );
RtlLeaveCriticalSection( &loader_section );
return status;
}
/******************************************************************
* LdrInitializeThunk (NTDLL.@)
*
*/
void WINAPI LdrInitializeThunk( ULONG unknown1, ULONG unknown2, ULONG unknown3, ULONG unknown4 )
{
NTSTATUS status;
WINE_MODREF *wm;
LPCWSTR load_path;
PEB *peb = NtCurrentTeb()->Peb;
IMAGE_NT_HEADERS *nt = RtlImageNtHeader( peb->ImageBaseAddress );
if (main_exe_file) NtClose( main_exe_file ); /* at this point the main module is created */
/* allocate the modref for the main exe (if not already done) */
wm = get_modref( peb->ImageBaseAddress );
assert( wm );
if (wm->ldr.Flags & LDR_IMAGE_IS_DLL)
{
ERR("%s is a dll, not an executable\n", debugstr_w(wm->ldr.FullDllName.Buffer) );
exit(1);
}
peb->LoaderLock = &loader_section;
peb->ProcessParameters->ImagePathName = wm->ldr.FullDllName;
version_init( wm->ldr.FullDllName.Buffer );
/* the main exe needs to be the first in the load order list */
RemoveEntryList( &wm->ldr.InLoadOrderModuleList );
InsertHeadList( &peb->LdrData->InLoadOrderModuleList, &wm->ldr.InLoadOrderModuleList );
if ((status = virtual_alloc_thread_stack( NtCurrentTeb(), 0, 0 )) != STATUS_SUCCESS) goto error;
if ((status = server_init_process_done()) != STATUS_SUCCESS) goto error;
actctx_init();
load_path = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
if ((status = fixup_imports( wm, load_path )) != STATUS_SUCCESS) goto error;
if ((status = alloc_process_tls()) != STATUS_SUCCESS) goto error;
if ((status = alloc_thread_tls()) != STATUS_SUCCESS) goto error;
status = wine_call_on_stack( attach_process_dlls, wm, NtCurrentTeb()->Tib.StackBase );
if (status != STATUS_SUCCESS) goto error;
virtual_release_address_space( nt->FileHeader.Characteristics & IMAGE_FILE_LARGE_ADDRESS_AWARE );
virtual_clear_thread_stack();
return;
error:
ERR( "Main exe initialization for %s failed, status %x\n",
debugstr_w(peb->ProcessParameters->ImagePathName.Buffer), status );
NtTerminateProcess( GetCurrentProcess(), status );
}
/***********************************************************************
* RtlImageDirectoryEntryToData (NTDLL.@)
*/
PVOID WINAPI RtlImageDirectoryEntryToData( HMODULE module, BOOL image, WORD dir, ULONG *size )
{
const IMAGE_NT_HEADERS *nt;
DWORD addr;
if ((ULONG_PTR)module & 1) /* mapped as data file */
{
module = (HMODULE)((ULONG_PTR)module & ~1);
image = FALSE;
}
if (!(nt = RtlImageNtHeader( module ))) return NULL;
if (dir >= nt->OptionalHeader.NumberOfRvaAndSizes) return NULL;
if (!(addr = nt->OptionalHeader.DataDirectory[dir].VirtualAddress)) return NULL;
*size = nt->OptionalHeader.DataDirectory[dir].Size;
if (image || addr < nt->OptionalHeader.SizeOfHeaders) return (char *)module + addr;
/* not mapped as image, need to find the section containing the virtual address */
return RtlImageRvaToVa( nt, module, addr, NULL );
}
/***********************************************************************
* RtlImageRvaToSection (NTDLL.@)
*/
PIMAGE_SECTION_HEADER WINAPI RtlImageRvaToSection( const IMAGE_NT_HEADERS *nt,
HMODULE module, DWORD rva )
{
int i;
const IMAGE_SECTION_HEADER *sec;
sec = (const IMAGE_SECTION_HEADER*)((const char*)&nt->OptionalHeader +
nt->FileHeader.SizeOfOptionalHeader);
for (i = 0; i < nt->FileHeader.NumberOfSections; i++, sec++)
{
if ((sec->VirtualAddress <= rva) && (sec->VirtualAddress + sec->SizeOfRawData > rva))
return (PIMAGE_SECTION_HEADER)sec;
}
return NULL;
}
/***********************************************************************
* RtlImageRvaToVa (NTDLL.@)
*/
PVOID WINAPI RtlImageRvaToVa( const IMAGE_NT_HEADERS *nt, HMODULE module,
DWORD rva, IMAGE_SECTION_HEADER **section )
{
IMAGE_SECTION_HEADER *sec;
if (section && *section) /* try this section first */
{
sec = *section;
if ((sec->VirtualAddress <= rva) && (sec->VirtualAddress + sec->SizeOfRawData > rva))
goto found;
}
if (!(sec = RtlImageRvaToSection( nt, module, rva ))) return NULL;
found:
if (section) *section = sec;
return (char *)module + sec->PointerToRawData + (rva - sec->VirtualAddress);
}
/***********************************************************************
* RtlPcToFileHeader (NTDLL.@)
*/
PVOID WINAPI RtlPcToFileHeader( PVOID pc, PVOID *address )
{
LDR_MODULE *module;
PVOID ret = NULL;
RtlEnterCriticalSection( &loader_section );
if (!LdrFindEntryForAddress( pc, &module )) ret = module->BaseAddress;
RtlLeaveCriticalSection( &loader_section );
*address = ret;
return ret;
}
/***********************************************************************
* NtLoadDriver (NTDLL.@)
* ZwLoadDriver (NTDLL.@)
*/
NTSTATUS WINAPI NtLoadDriver( const UNICODE_STRING *DriverServiceName )
{
FIXME("(%p), stub!\n",DriverServiceName);
return STATUS_NOT_IMPLEMENTED;
}
/***********************************************************************
* NtUnloadDriver (NTDLL.@)
* ZwUnloadDriver (NTDLL.@)
*/
NTSTATUS WINAPI NtUnloadDriver( const UNICODE_STRING *DriverServiceName )
{
FIXME("(%p), stub!\n",DriverServiceName);
return STATUS_NOT_IMPLEMENTED;
}
/******************************************************************
* DllMain (NTDLL.@)
*/
BOOL WINAPI DllMain( HINSTANCE inst, DWORD reason, LPVOID reserved )
{
if (reason == DLL_PROCESS_ATTACH) LdrDisableThreadCalloutsForDll( inst );
return TRUE;
}
/******************************************************************
* __wine_init_windows_dir (NTDLL.@)
*
* Windows and system dir initialization once kernel32 has been loaded.
*/
void CDECL __wine_init_windows_dir( const WCHAR *windir, const WCHAR *sysdir )
{
PLIST_ENTRY mark, entry;
LPWSTR buffer, p;
RtlCreateUnicodeString( &windows_dir, windir );
RtlCreateUnicodeString( &system_dir, sysdir );
strcpyW( user_shared_data->NtSystemRoot, windir );
/* prepend the system dir to the name of the already created modules */
mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
for (entry = mark->Flink; entry != mark; entry = entry->Flink)
{
LDR_MODULE *mod = CONTAINING_RECORD( entry, LDR_MODULE, InLoadOrderModuleList );
assert( mod->Flags & LDR_WINE_INTERNAL );
buffer = RtlAllocateHeap( GetProcessHeap(), 0,
system_dir.Length + mod->FullDllName.Length + 2*sizeof(WCHAR) );
if (!buffer) continue;
strcpyW( buffer, system_dir.Buffer );
p = buffer + strlenW( buffer );
if (p > buffer && p[-1] != '\\') *p++ = '\\';
strcpyW( p, mod->FullDllName.Buffer );
RtlInitUnicodeString( &mod->FullDllName, buffer );
RtlInitUnicodeString( &mod->BaseDllName, p );
}
}
/***********************************************************************
* __wine_process_init
*/
void __wine_process_init(void)
{
static const WCHAR kernel32W[] = {'k','e','r','n','e','l','3','2','.','d','l','l',0};
WINE_MODREF *wm;
NTSTATUS status;
ANSI_STRING func_name;
void (* DECLSPEC_NORETURN CDECL init_func)(void);
extern mode_t FILE_umask;
main_exe_file = thread_init();
/* retrieve current umask */
FILE_umask = umask(0777);
umask( FILE_umask );
/* setup the load callback and create ntdll modref */
wine_dll_set_callback( load_builtin_callback );
if ((status = load_builtin_dll( NULL, kernel32W, 0, 0, &wm )) != STATUS_SUCCESS)
{
MESSAGE( "wine: could not load kernel32.dll, status %x\n", status );
exit(1);
}
RtlInitAnsiString( &func_name, "UnhandledExceptionFilter" );
LdrGetProcedureAddress( wm->ldr.BaseAddress, &func_name, 0, (void **)&unhandled_exception_filter );
RtlInitAnsiString( &func_name, "__wine_kernel_init" );
if ((status = LdrGetProcedureAddress( wm->ldr.BaseAddress, &func_name,
0, (void **)&init_func )) != STATUS_SUCCESS)
{
MESSAGE( "wine: could not find __wine_kernel_init in kernel32.dll, status %x\n", status );
exit(1);
}
init_func();
}
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