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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 <assert.h>
#include <stdarg.h>
#include <stdlib.h>
#include "ntstatus.h"
#define WIN32_NO_STATUS
#define NONAMELESSUNION
#define NONAMELESSSTRUCT
#include "windef.h"
#include "winnt.h"
#include "winioctl.h"
#include "winternl.h"
#include "delayloadhandler.h"
#include "wine/exception.h"
#include "wine/debug.h"
#include "wine/list.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);
#ifdef _WIN64
#define DEFAULT_SECURITY_COOKIE_64 (((ULONGLONG)0x00002b99 << 32) | 0x2ddfa232)
#endif
#define DEFAULT_SECURITY_COOKIE_32 0xbb40e64e
#define DEFAULT_SECURITY_COOKIE_16 (DEFAULT_SECURITY_COOKIE_32 >> 16)
/* 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);
typedef void (CALLBACK *LDRENUMPROC)(LDR_DATA_TABLE_ENTRY *, void *, BOOLEAN *);
void (FASTCALL *pBaseThreadInitThunk)(DWORD,LPTHREAD_START_ROUTINE,void *) = NULL;
const struct unix_funcs *unix_funcs = NULL;
/* windows directory */
const WCHAR windows_dir[] = L"C:\\windows";
/* system directory with trailing backslash */
const WCHAR system_dir[] = L"C:\\windows\\system32\\";
const WCHAR syswow64_dir[] = L"C:\\windows\\syswow64\\";
HMODULE kernel32_handle = 0;
/* system search path */
static const WCHAR system_path[] = L"C:\\windows\\system32;C:\\windows\\system;C:\\windows";
static BOOL is_prefix_bootstrap; /* are we bootstrapping the prefix? */
static BOOL imports_fixup_done = FALSE; /* set once the imports have been fixed up, before attaching them */
static BOOL process_detaching = FALSE; /* set on process detach to avoid deadlocks with thread detach */
static int free_lib_count; /* recursion depth of LdrUnloadDll calls */
static ULONG path_safe_mode; /* path mode set by RtlSetSearchPathMode */
static ULONG dll_safe_mode = 1; /* dll search mode */
static UNICODE_STRING dll_directory; /* extra path for LdrSetDllDirectory */
static DWORD default_search_flags; /* default flags set by LdrSetDefaultDllDirectories */
static WCHAR *default_load_path; /* default dll search path */
struct dll_dir_entry
{
struct list entry;
WCHAR dir[1];
};
static struct list dll_dir_list = LIST_INIT( dll_dir_list ); /* extra dirs from LdrAddDllDirectory */
struct ldr_notification
{
struct list entry;
PLDR_DLL_NOTIFICATION_FUNCTION callback;
void *context;
};
static struct list ldr_notifications = LIST_INIT( ldr_notifications );
static const char * const reason_names[] =
{
"PROCESS_DETACH",
"PROCESS_ATTACH",
"THREAD_ATTACH",
"THREAD_DETACH",
};
struct file_id
{
BYTE ObjectId[16];
};
/* internal representation of loaded modules */
typedef struct _wine_modref
{
LDR_DATA_TABLE_ENTRY ldr;
struct file_id id;
int alloc_deps;
int nDeps;
struct _wine_modref **deps;
} WINE_MODREF;
static UINT tls_module_count; /* number of modules with TLS directory */
static IMAGE_TLS_DIRECTORY *tls_dirs; /* array of TLS directories */
LIST_ENTRY tls_links = { &tls_links, &tls_links };
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 CRITICAL_SECTION dlldir_section;
static CRITICAL_SECTION_DEBUG dlldir_critsect_debug =
{
0, 0, &dlldir_section,
{ &dlldir_critsect_debug.ProcessLocksList, &dlldir_critsect_debug.ProcessLocksList },
0, 0, { (DWORD_PTR)(__FILE__ ": dlldir_section") }
};
static CRITICAL_SECTION dlldir_section = { &dlldir_critsect_debug, -1, 0, 0, 0, 0 };
static RTL_CRITICAL_SECTION peb_lock;
static RTL_CRITICAL_SECTION_DEBUG peb_critsect_debug =
{
0, 0, &peb_lock,
{ &peb_critsect_debug.ProcessLocksList, &peb_critsect_debug.ProcessLocksList },
0, 0, { (DWORD_PTR)(__FILE__ ": peb_lock") }
};
static RTL_CRITICAL_SECTION peb_lock = { &peb_critsect_debug, -1, 0, 0, 0, 0 };
static PEB_LDR_DATA ldr =
{
sizeof(ldr), TRUE, NULL,
{ &ldr.InLoadOrderModuleList, &ldr.InLoadOrderModuleList },
{ &ldr.InMemoryOrderModuleList, &ldr.InMemoryOrderModuleList },
{ &ldr.InInitializationOrderModuleList, &ldr.InInitializationOrderModuleList }
};
static RTL_BITMAP tls_bitmap;
static RTL_BITMAP tls_expansion_bitmap;
static WINE_MODREF *cached_modref;
static WINE_MODREF *current_modref;
static WINE_MODREF *last_failed_modref;
static NTSTATUS load_dll( const WCHAR *load_path, const WCHAR *libname, const WCHAR *default_ext,
DWORD flags, WINE_MODREF** pwm );
static NTSTATUS process_attach( WINE_MODREF *wm, LPVOID lpReserved );
static FARPROC find_ordinal_export( HMODULE module, const IMAGE_EXPORT_DIRECTORY *exports,
DWORD exp_size, DWORD ordinal, LPCWSTR load_path );
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 BOOL contains_path( LPCWSTR name )
{
return ((*name && (name[1] == ':')) || wcschr(name, '/') || wcschr(name, '\\'));
}
#define RTL_UNLOAD_EVENT_TRACE_NUMBER 64
typedef struct _RTL_UNLOAD_EVENT_TRACE
{
void *BaseAddress;
SIZE_T SizeOfImage;
ULONG Sequence;
ULONG TimeDateStamp;
ULONG CheckSum;
WCHAR ImageName[32];
} RTL_UNLOAD_EVENT_TRACE, *PRTL_UNLOAD_EVENT_TRACE;
static RTL_UNLOAD_EVENT_TRACE unload_traces[RTL_UNLOAD_EVENT_TRACE_NUMBER];
static RTL_UNLOAD_EVENT_TRACE *unload_trace_ptr;
static unsigned int unload_trace_seq;
static void module_push_unload_trace( const LDR_DATA_TABLE_ENTRY *ldr )
{
RTL_UNLOAD_EVENT_TRACE *ptr = &unload_traces[unload_trace_seq];
unsigned int len = min(sizeof(ptr->ImageName) - sizeof(WCHAR), ldr->BaseDllName.Length);
ptr->BaseAddress = ldr->DllBase;
ptr->SizeOfImage = ldr->SizeOfImage;
ptr->Sequence = unload_trace_seq;
ptr->TimeDateStamp = ldr->TimeDateStamp;
ptr->CheckSum = ldr->CheckSum;
memcpy(ptr->ImageName, ldr->BaseDllName.Buffer, len);
ptr->ImageName[len / sizeof(*ptr->ImageName)] = 0;
unload_trace_seq = (unload_trace_seq + 1) % ARRAY_SIZE(unload_traces);
unload_trace_ptr = unload_traces;
}
/*********************************************************************
* RtlGetUnloadEventTrace [NTDLL.@]
*/
RTL_UNLOAD_EVENT_TRACE * WINAPI RtlGetUnloadEventTrace(void)
{
return unload_traces;
}
/*********************************************************************
* RtlGetUnloadEventTraceEx [NTDLL.@]
*/
void WINAPI RtlGetUnloadEventTraceEx(ULONG **size, ULONG **count, void **trace)
{
static unsigned int element_size = sizeof(*unload_traces);
static unsigned int element_count = ARRAY_SIZE(unload_traces);
*size = &element_size;
*count = &element_count;
*trace = &unload_trace_ptr;
}
/*************************************************************************
* 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. Testing indicates
* that only modifying esi leads to a crash, so use this one to backup
* ebp while running the dll entry proc.
*/
#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")
"pushl %esi\n\t"
__ASM_CFI(".cfi_rel_offset %esi,-8\n\t")
"pushl %edi\n\t"
__ASM_CFI(".cfi_rel_offset %edi,-12\n\t")
"movl %ebp,%esi\n\t"
__ASM_CFI(".cfi_def_cfa_register %esi\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"
"movl %esi,%ebp\n\t"
__ASM_CFI(".cfi_def_cfa_register %ebp\n\t")
"leal -12(%ebp),%esp\n\t"
"popl %edi\n\t"
__ASM_CFI(".cfi_same_value %edi\n\t")
"popl %esi\n\t"
__ASM_CFI(".cfi_same_value %esi\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__) || defined(__arm__) || defined(__aarch64__)
/*************************************************************************
* stub_entry_point
*
* Entry point for stub functions.
*/
static void WINAPI 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;
};
#elif defined(__arm__)
struct stub
{
DWORD ldr_r0; /* ldr r0, $dll */
DWORD ldr_r1; /* ldr r1, $name */
DWORD mov_r2_lr; /* mov r2, lr */
DWORD ldr_pc_pc; /* ldr pc, [pc, #4] */
const char *dll;
const char *name;
const void* entry;
};
#elif defined(__aarch64__)
struct stub
{
DWORD ldr_x0; /* ldr x0, $dll */
DWORD ldr_x1; /* ldr x1, $name */
DWORD mov_x2_lr; /* mov x2, lr */
DWORD ldr_x16; /* ldr x16, $entry */
DWORD br_x16; /* br x16 */
const char *dll;
const char *name;
const void *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_READWRITE ) != STATUS_SUCCESS)
return 0xdeadbeef;
}
stub = &stubs[nb_stubs++];
#ifdef __i386__
stub->pushl1 = 0x68; /* pushl $name */
stub->name = name;
stub->pushl2 = 0x68; /* pushl $dll */
stub->dll = dll;
stub->call = 0xe8; /* call stub_entry_point */
stub->entry = (BYTE *)stub_entry_point - (BYTE *)(&stub->entry + 1);
#elif defined(__arm__)
stub->ldr_r0 = 0xe59f0008; /* ldr r0, [pc, #8] ($dll) */
stub->ldr_r1 = 0xe59f1008; /* ldr r1, [pc, #8] ($name) */
stub->mov_r2_lr = 0xe1a0200e; /* mov r2, lr */
stub->ldr_pc_pc = 0xe59ff004; /* ldr pc, [pc, #4] */
stub->dll = dll;
stub->name = name;
stub->entry = stub_entry_point;
#elif defined(__aarch64__)
stub->ldr_x0 = 0x580000a0; /* ldr x0, #20 ($dll) */
stub->ldr_x1 = 0x580000c1; /* ldr x1, #24 ($name) */
stub->mov_x2_lr = 0xaa1e03e2; /* mov x2, lr */
stub->ldr_x16 = 0x580000d0; /* ldr x16, #24 ($entry) */
stub->br_x16 = 0xd61f0200; /* br x16 */
stub->dll = dll;
stub->name = name;
stub->entry = stub_entry_point;
#else
stub->movq_rdi[0] = 0x48; /* movq $dll,%rcx */
stub->movq_rdi[1] = 0xb9;
stub->dll = dll;
stub->movq_rsi[0] = 0x48; /* movq $name,%rdx */
stub->movq_rsi[1] = 0xba;
stub->name = name;
stub->movq_rsp_rdx[0] = 0x4c; /* movq (%rsp),%r8 */
stub->movq_rsp_rdx[1] = 0x8b;
stub->movq_rsp_rdx[2] = 0x04;
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__ */
/* call ldr notifications */
static void call_ldr_notifications( ULONG reason, LDR_DATA_TABLE_ENTRY *module )
{
struct ldr_notification *notify, *notify_next;
LDR_DLL_NOTIFICATION_DATA data;
data.Loaded.Flags = 0;
data.Loaded.FullDllName = &module->FullDllName;
data.Loaded.BaseDllName = &module->BaseDllName;
data.Loaded.DllBase = module->DllBase;
data.Loaded.SizeOfImage = module->SizeOfImage;
LIST_FOR_EACH_ENTRY_SAFE( notify, notify_next, &ldr_notifications, struct ldr_notification, entry )
{
TRACE_(relay)("\1Call LDR notification callback (proc=%p,reason=%u,data=%p,context=%p)\n",
notify->callback, reason, &data, notify->context );
notify->callback(reason, &data, notify->context);
TRACE_(relay)("\1Ret LDR notification callback (proc=%p,reason=%u,data=%p,context=%p)\n",
notify->callback, reason, &data, notify->context );
}
}
/*************************************************************************
* 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_DATA_TABLE_ENTRY mod;
if (cached_modref && cached_modref->ldr.DllBase == hmod) return cached_modref;
mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
for (entry = mark->Flink; entry != mark; entry = entry->Flink)
{
mod = CONTAINING_RECORD(entry, LDR_DATA_TABLE_ENTRY, InMemoryOrderLinks);
if (mod->DllBase == hmod)
return cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
}
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;
UNICODE_STRING name_str;
RtlInitUnicodeString( &name_str, name );
if (cached_modref && RtlEqualUnicodeString( &name_str, &cached_modref->ldr.BaseDllName, TRUE ))
return cached_modref;
mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
for (entry = mark->Flink; entry != mark; entry = entry->Flink)
{
LDR_DATA_TABLE_ENTRY *mod = CONTAINING_RECORD(entry, LDR_DATA_TABLE_ENTRY, InLoadOrderLinks);
if (RtlEqualUnicodeString( &name_str, &mod->BaseDllName, TRUE ))
{
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( const UNICODE_STRING *nt_name )
{
PLIST_ENTRY mark, entry;
UNICODE_STRING name = *nt_name;
if (name.Length <= 4 * sizeof(WCHAR)) return NULL;
name.Length -= 4 * sizeof(WCHAR); /* for \??\ prefix */
name.Buffer += 4;
if (cached_modref && RtlEqualUnicodeString( &name, &cached_modref->ldr.FullDllName, TRUE ))
return cached_modref;
mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
for (entry = mark->Flink; entry != mark; entry = entry->Flink)
{
LDR_DATA_TABLE_ENTRY *mod = CONTAINING_RECORD(entry, LDR_DATA_TABLE_ENTRY, InLoadOrderLinks);
if (RtlEqualUnicodeString( &name, &mod->FullDllName, TRUE ))
{
cached_modref = CONTAINING_RECORD(mod, WINE_MODREF, ldr);
return cached_modref;
}
}
return NULL;
}
/**********************************************************************
* find_fileid_module
*
* Find a module from its file id.
* The loader_section must be locked while calling this function
*/
static WINE_MODREF *find_fileid_module( const struct file_id *id )
{
LIST_ENTRY *mark, *entry;
if (cached_modref && !memcmp( &cached_modref->id, id, sizeof(*id) )) return cached_modref;
mark = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
for (entry = mark->Flink; entry != mark; entry = entry->Flink)
{
LDR_DATA_TABLE_ENTRY *mod = CONTAINING_RECORD( entry, LDR_DATA_TABLE_ENTRY, InLoadOrderLinks );
WINE_MODREF *wm = CONTAINING_RECORD( mod, WINE_MODREF, ldr );
if (!memcmp( &wm->id, id, sizeof(*id) ))
{
cached_modref = wm;
return wm;
}
}
return NULL;
}
/*************************************************************************
* grow_module_deps
*/
static WINE_MODREF **grow_module_deps( WINE_MODREF *wm, int count )
{
WINE_MODREF **deps;
if (wm->alloc_deps)
deps = RtlReAllocateHeap( GetProcessHeap(), HEAP_ZERO_MEMORY, wm->deps,
(wm->alloc_deps + count) * sizeof(*deps) );
else
deps = RtlAllocateHeap( GetProcessHeap(), HEAP_ZERO_MEMORY, count * sizeof(*deps) );
if (deps)
{
wm->deps = deps;
wm->alloc_deps += count;
}
return deps;
}
/*************************************************************************
* 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 buffer[32], *mod_name = buffer;
const char *end = strrchr(forward, '.');
FARPROC proc = NULL;
if (!end) return NULL;
if ((end - forward) * sizeof(WCHAR) > sizeof(buffer) - sizeof(L".dll"))
{
if (!(mod_name = RtlAllocateHeap( GetProcessHeap(), 0,
(end - forward + sizeof(L".dll")) * sizeof(WCHAR) )))
return NULL;
}
ascii_to_unicode( mod_name, forward, end - forward );
mod_name[end - forward] = 0;
if (!wcschr( mod_name, '.' ))
memcpy( mod_name + (end - forward), L".dll", sizeof(L".dll") );
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, L".dll", 0, &wm ) == STATUS_SUCCESS &&
!(wm->ldr.Flags & LDR_DONT_RESOLVE_REFS))
{
if (!imports_fixup_done && current_modref)
{
WINE_MODREF **deps = grow_module_deps( current_modref, 1 );
if (deps) deps[current_modref->nDeps++] = wm;
}
else if (process_attach( wm, NULL ) != STATUS_SUCCESS)
{
LdrUnloadDll( wm->ldr.DllBase );
wm = NULL;
}
}
if (!wm)
{
if (mod_name != buffer) RtlFreeHeap( GetProcessHeap(), 0, mod_name );
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.DllBase, TRUE,
IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size )))
{
const char *name = end + 1;
if (*name == '#') { /* ordinal */
proc = find_ordinal_export( wm->ldr.DllBase, exports, exp_size,
atoi(name+1) - exports->Base, load_path );
} else
proc = find_named_export( wm->ldr.DllBase, exports, exp_size, name, -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) );
}
if (mod_name != buffer) RtlFreeHeap( GetProcessHeap(), 0, mod_name );
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 BOOL import_dll( HMODULE module, const IMAGE_IMPORT_DESCRIPTOR *descr, LPCWSTR load_path, WINE_MODREF **pwm )
{
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;
if (!import_list->u1.Ordinal)
{
WARN( "Skipping unused import %s\n", name );
*pwm = NULL;
return TRUE;
}
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, L".dll", 0, &wmImp );
}
else /* need to allocate a larger buffer */
{
WCHAR *ptr = RtlAllocateHeap( GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR) );
if (!ptr) return FALSE;
ascii_to_unicode( ptr, name, len );
ptr[len] = 0;
status = load_dll( load_path, ptr, L".dll", 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 FALSE;
}
/* 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_READWRITE, &protect_old );
imp_mod = wmImp->ldr.DllBase;
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, &protect_old );
*pwm = wmImp;
return TRUE;
}
/***********************************************************************
* create_module_activation_context
*/
static NTSTATUS create_module_activation_context( LDR_DATA_TABLE_ENTRY *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->DllBase, &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->DllBase;
ctx.lpResourceName = (LPCWSTR)ISOLATIONAWARE_MANIFEST_RESOURCE_ID;
status = RtlCreateActivationContext( &module->ActivationContext, &ctx );
}
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( LDR_DATA_TABLE_ENTRY *mod, const IMAGE_NT_HEADERS *nt, LPCWSTR filename )
{
const IMAGE_IMPORT_DESCRIPTOR *imports;
DWORD i, size;
WCHAR buffer[16];
if (nt->OptionalHeader.Subsystem != IMAGE_SUBSYSTEM_NATIVE) return FALSE;
if (nt->OptionalHeader.SectionAlignment < page_size) return TRUE;
if (mod->Flags & LDR_WINE_INTERNAL) return TRUE;
if ((imports = RtlImageDirectoryEntryToData( mod->DllBase, TRUE,
IMAGE_DIRECTORY_ENTRY_IMPORT, &size )))
{
for (i = 0; imports[i].Name; i++)
{
const char *name = get_rva( mod->DllBase, imports[i].Name );
DWORD len = strlen(name);
if (len * sizeof(WCHAR) >= sizeof(buffer)) continue;
ascii_to_unicode( buffer, name, len + 1 );
if (!wcsicmp( buffer, L"ntdll.dll" ) || !wcsicmp( buffer, L"kernel32.dll" ))
{
TRACE( "%s imports %s, assuming not native\n", debugstr_w(filename), debugstr_w(buffer) );
return FALSE;
}
}
}
return TRUE;
}
/*************************************************************************
* alloc_tls_slot
*
* Allocate a TLS slot for a newly-loaded module.
* The loader_section must be locked while calling this function.
*/
static SHORT alloc_tls_slot( LDR_DATA_TABLE_ENTRY *mod )
{
const IMAGE_TLS_DIRECTORY *dir;
ULONG i, size;
void *new_ptr;
LIST_ENTRY *entry;
if (!(dir = RtlImageDirectoryEntryToData( mod->DllBase, TRUE, IMAGE_DIRECTORY_ENTRY_TLS, &size )))
return -1;
size = dir->EndAddressOfRawData - dir->StartAddressOfRawData;
if (!size && !dir->SizeOfZeroFill && !dir->AddressOfCallBacks) return -1;
for (i = 0; i < tls_module_count; i++)
{
if (!tls_dirs[i].StartAddressOfRawData && !tls_dirs[i].EndAddressOfRawData &&
!tls_dirs[i].SizeOfZeroFill && !tls_dirs[i].AddressOfCallBacks)
break;
}
TRACE( "module %p data %p-%p zerofill %u index %p callback %p flags %x -> slot %u\n", mod->DllBase,
(void *)dir->StartAddressOfRawData, (void *)dir->EndAddressOfRawData, dir->SizeOfZeroFill,
(void *)dir->AddressOfIndex, (void *)dir->AddressOfCallBacks, dir->Characteristics, i );
if (i == tls_module_count)
{
UINT new_count = max( 32, tls_module_count * 2 );
if (!tls_dirs)
new_ptr = RtlAllocateHeap( GetProcessHeap(), HEAP_ZERO_MEMORY, new_count * sizeof(*tls_dirs) );
else
new_ptr = RtlReAllocateHeap( GetProcessHeap(), HEAP_ZERO_MEMORY, tls_dirs,
new_count * sizeof(*tls_dirs) );
if (!new_ptr) return -1;
/* resize the pointer block in all running threads */
for (entry = tls_links.Flink; entry != &tls_links; entry = entry->Flink)
{
TEB *teb = CONTAINING_RECORD( entry, TEB, TlsLinks );
void **old = teb->ThreadLocalStoragePointer;
void **new = RtlAllocateHeap( GetProcessHeap(), HEAP_ZERO_MEMORY, new_count * sizeof(*new));
if (!new) return -1;
if (old) memcpy( new, old, tls_module_count * sizeof(*new) );
teb->ThreadLocalStoragePointer = new;
#ifdef __x86_64__ /* macOS-specific hack */
if (teb->Reserved5[0]) ((TEB *)teb->Reserved5[0])->ThreadLocalStoragePointer = new;
#endif
TRACE( "thread %04lx tls block %p -> %p\n", (ULONG_PTR)teb->ClientId.UniqueThread, old, new );
/* FIXME: can't free old block here, should be freed at thread exit */
}
tls_dirs = new_ptr;
tls_module_count = new_count;
}
/* allocate the data block in all running threads */
for (entry = tls_links.Flink; entry != &tls_links; entry = entry->Flink)
{
TEB *teb = CONTAINING_RECORD( entry, TEB, TlsLinks );
if (!(new_ptr = RtlAllocateHeap( GetProcessHeap(), 0, size + dir->SizeOfZeroFill ))) return -1;
memcpy( new_ptr, (void *)dir->StartAddressOfRawData, size );
memset( (char *)new_ptr + size, 0, dir->SizeOfZeroFill );
TRACE( "thread %04lx slot %u: %u/%u bytes at %p\n",
(ULONG_PTR)teb->ClientId.UniqueThread, i, size, dir->SizeOfZeroFill, new_ptr );
RtlFreeHeap( GetProcessHeap(), 0,
InterlockedExchangePointer( (void **)teb->ThreadLocalStoragePointer + i, new_ptr ));
}
*(DWORD *)dir->AddressOfIndex = i;
tls_dirs[i] = *dir;
return i;
}
/*************************************************************************
* free_tls_slot
*
* Free the module TLS slot on unload.
* The loader_section must be locked while calling this function.
*/
static void free_tls_slot( LDR_DATA_TABLE_ENTRY *mod )
{
ULONG i = (USHORT)mod->TlsIndex;
if (mod->TlsIndex == -1) return;
assert( i < tls_module_count );
memset( &tls_dirs[i], 0, sizeof(tls_dirs[i]) );
}
/****************************************************************
* fixup_imports_ilonly
*
* Fixup imports for an IL-only module. All we do is import mscoree.
* The loader_section must be locked while calling this function.
*/
static NTSTATUS fixup_imports_ilonly( WINE_MODREF *wm, LPCWSTR load_path, void **entry )
{
IMAGE_EXPORT_DIRECTORY *exports;
DWORD exp_size;
NTSTATUS status;
void *proc = NULL;
WINE_MODREF *prev, *imp;
if (!(wm->ldr.Flags & LDR_DONT_RESOLVE_REFS)) return STATUS_SUCCESS; /* already done */
wm->ldr.Flags &= ~LDR_DONT_RESOLVE_REFS;
if (!grow_module_deps( wm, 1 )) return STATUS_NO_MEMORY;
wm->nDeps = 1;
prev = current_modref;
current_modref = wm;
if (!(status = load_dll( load_path, L"mscoree.dll", NULL, 0, &imp ))) wm->deps[0] = imp;
current_modref = prev;
if (status)
{
ERR( "mscoree.dll not found, IL-only binary %s cannot be loaded\n",
debugstr_w(wm->ldr.BaseDllName.Buffer) );
return status;
}
TRACE( "loaded mscoree for %s\n", debugstr_w(wm->ldr.FullDllName.Buffer) );
if ((exports = RtlImageDirectoryEntryToData( imp->ldr.DllBase, TRUE,
IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size )))
{
const char *name = (wm->ldr.Flags & LDR_IMAGE_IS_DLL) ? "_CorDllMain" : "_CorExeMain";
proc = find_named_export( imp->ldr.DllBase, exports, exp_size, name, -1, load_path );
}
if (!proc) return STATUS_PROCEDURE_NOT_FOUND;
*entry = proc;
return STATUS_SUCCESS;
}
/****************************************************************
* 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, dep, nb_imports;
const IMAGE_IMPORT_DESCRIPTOR *imports;
WINE_MODREF *prev, *imp;
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;
wm->ldr.TlsIndex = alloc_tls_slot( &wm->ldr );
if (!(imports = RtlImageDirectoryEntryToData( wm->ldr.DllBase, 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 (!grow_module_deps( wm, nb_imports )) return STATUS_NO_MEMORY;
if (!create_module_activation_context( &wm->ldr ))
RtlActivateActivationContext( 0, wm->ldr.ActivationContext, &cookie );
/* 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++)
{
dep = wm->nDeps++;
if (!import_dll( wm->ldr.DllBase, &imports[i], load_path, &imp ))
{
imp = NULL;
status = STATUS_DLL_NOT_FOUND;
}
wm->deps[dep] = imp;
}
current_modref = prev;
if (wm->ldr.ActivationContext) RtlDeactivateActivationContext( 0, cookie );
return status;
}
/*************************************************************************
* 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, const UNICODE_STRING *nt_name, BOOL builtin )
{
WCHAR *buffer;
WINE_MODREF *wm;
const WCHAR *p;
const IMAGE_NT_HEADERS *nt = RtlImageNtHeader(hModule);
if (!(wm = RtlAllocateHeap( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*wm) ))) return NULL;
wm->ldr.DllBase = hModule;
wm->ldr.SizeOfImage = nt->OptionalHeader.SizeOfImage;
wm->ldr.Flags = LDR_DONT_RESOLVE_REFS | (builtin ? LDR_WINE_INTERNAL : 0);
wm->ldr.TlsIndex = -1;
wm->ldr.LoadCount = 1;
wm->ldr.CheckSum = nt->OptionalHeader.CheckSum;
wm->ldr.TimeDateStamp = nt->FileHeader.TimeDateStamp;
if (!(buffer = RtlAllocateHeap( GetProcessHeap(), 0, nt_name->Length - 3 * sizeof(WCHAR) )))
{
RtlFreeHeap( GetProcessHeap(), 0, wm );
return NULL;
}
memcpy( buffer, nt_name->Buffer + 4 /* \??\ prefix */, nt_name->Length - 4 * sizeof(WCHAR) );
buffer[nt_name->Length/sizeof(WCHAR) - 4] = 0;
if ((p = wcsrchr( buffer, '\\' ))) p++;
else p = buffer;
RtlInitUnicodeString( &wm->ldr.FullDllName, buffer );
RtlInitUnicodeString( &wm->ldr.BaseDllName, p );
if (!is_dll_native_subsystem( &wm->ldr, nt, p ))
{
if (nt->FileHeader.Characteristics & IMAGE_FILE_DLL)
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.InLoadOrderLinks);
InsertTailList(&NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList,
&wm->ldr.InMemoryOrderLinks);
/* wait until init is called for inserting into InInitializationOrderModuleList */
if (!(nt->OptionalHeader.DllCharacteristics & IMAGE_DLLCHARACTERISTICS_NX_COMPAT))
{
ULONG flags = MEM_EXECUTE_OPTION_ENABLE;
WARN( "disabling no-exec because of %s\n", debugstr_w(wm->ldr.BaseDllName.Buffer) );
NtSetInformationProcess( GetCurrentProcess(), ProcessExecuteFlags, &flags, sizeof(flags) );
}
return wm;
}
/*************************************************************************
* alloc_thread_tls
*
* Allocate the per-thread structure for module TLS storage.
*/
static NTSTATUS alloc_thread_tls(void)
{
void **pointers;
UINT i, size;
if (!tls_module_count) return STATUS_SUCCESS;
if (!(pointers = RtlAllocateHeap( GetProcessHeap(), HEAP_ZERO_MEMORY,
tls_module_count * sizeof(*pointers) )))
return STATUS_NO_MEMORY;
for (i = 0; i < tls_module_count; i++)
{
const IMAGE_TLS_DIRECTORY *dir = &tls_dirs[i];
if (!dir) continue;
size = dir->EndAddressOfRawData - dir->StartAddressOfRawData;
if (!size && !dir->SizeOfZeroFill) continue;
if (!(pointers[i] = RtlAllocateHeap( GetProcessHeap(), 0, size + dir->SizeOfZeroFill )))
{
while (i) RtlFreeHeap( GetProcessHeap(), 0, pointers[--i] );
RtlFreeHeap( GetProcessHeap(), 0, pointers );
return STATUS_NO_MEMORY;
}
memcpy( pointers[i], (void *)dir->StartAddressOfRawData, size );
memset( (char *)pointers[i] + size, 0, dir->SizeOfZeroFill );
TRACE( "thread %04x slot %u: %u/%u bytes at %p\n",
GetCurrentThreadId(), i, size, dir->SizeOfZeroFill, pointers[i] );
}
NtCurrentTeb()->ThreadLocalStoragePointer = pointers;
#ifdef __x86_64__ /* macOS-specific hack */
if (NtCurrentTeb()->Reserved5[0])
((TEB *)NtCurrentTeb()->Reserved5[0])->ThreadLocalStoragePointer = pointers;
#endif
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++)
{
TRACE_(relay)("\1Call TLS callback (proc=%p,module=%p,reason=%s,reserved=0)\n",
*callback, module, reason_names[reason] );
__TRY
{
call_dll_entry_point( (DLLENTRYPROC)*callback, module, reason, NULL );
}
__EXCEPT_ALL
{
TRACE_(relay)("\1exception %08x in TLS callback (proc=%p,module=%p,reason=%s,reserved=0)\n",
GetExceptionCode(), callback, module, reason_names[reason] );
return;
}
__ENDTRY
TRACE_(relay)("\1Ret TLS callback (proc=%p,module=%p,reason=%s,reserved=0)\n",
*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.DllBase;
BOOL retv = FALSE;
/* 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.DllBase, reason );
if (wm->ldr.Flags & LDR_WINE_INTERNAL && reason == DLL_PROCESS_ATTACH)
unix_funcs->init_builtin_dll( wm->ldr.DllBase );
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;
TRACE_(relay)("\1Call PE DLL (proc=%p,module=%p %s,reason=%s,res=%p)\n",
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
{
status = GetExceptionCode();
TRACE_(relay)("\1exception %08x in PE entry point (proc=%p,module=%p,reason=%s,res=%p)\n",
status, entry, module, reason_names[reason], lpReserved );
}
__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))
TRACE_(relay)("\1Ret PE DLL (proc=%p,module=%p %s,reason=%s,res=%p) retval=%x\n",
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;
}
if (!wm->ldr.InInitializationOrderLinks.Flink)
InsertTailList(&NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList,
&wm->ldr.InInitializationOrderLinks);
/* Call DLL entry point */
if (status == STATUS_SUCCESS)
{
WINE_MODREF *prev = current_modref;
current_modref = wm;
call_ldr_notifications( LDR_DLL_NOTIFICATION_REASON_LOADED, &wm->ldr );
status = MODULE_InitDLL( wm, DLL_PROCESS_ATTACH, lpReserved );
if (status == STATUS_SUCCESS)
{
wm->ldr.Flags |= LDR_PROCESS_ATTACHED;
}
else
{
MODULE_InitDLL( wm, DLL_PROCESS_DETACH, lpReserved );
call_ldr_notifications( LDR_DLL_NOTIFICATION_REASON_UNLOADED, &wm->ldr );
/* 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.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;
}
/*************************************************************************
* process_detach
*
* Send DLL process detach notifications. See the comment about calling
* sequence at process_attach.
*/
static void process_detach(void)
{
PLIST_ENTRY mark, entry;
PLDR_DATA_TABLE_ENTRY mod;
mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
do
{
for (entry = mark->Blink; entry != mark; entry = entry->Blink)
{
mod = CONTAINING_RECORD(entry, LDR_DATA_TABLE_ENTRY,
InInitializationOrderLinks);
/* Check whether to detach this DLL */
if ( !(mod->Flags & LDR_PROCESS_ATTACHED) )
continue;
if ( mod->LoadCount && !process_detaching )
continue;
/* Call detach notification */
mod->Flags &= ~LDR_PROCESS_ATTACHED;
MODULE_InitDLL( CONTAINING_RECORD(mod, WINE_MODREF, ldr),
DLL_PROCESS_DETACH, ULongToPtr(process_detaching) );
call_ldr_notifications( LDR_DLL_NOTIFICATION_REASON_UNLOADED, mod );
/* Restart at head of WINE_MODREF list, as entries might have
been added and/or removed while performing the call ... */
break;
}
} while (entry != mark);
}
/*************************************************************************
* thread_attach
*
* Send DLL thread attach notifications. These are sent in the
* reverse sequence of process detach notification.
* The loader_section must be locked while calling this function.
*/
static void thread_attach(void)
{
PLIST_ENTRY mark, entry;
PLDR_DATA_TABLE_ENTRY mod;
mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
for (entry = mark->Flink; entry != mark; entry = entry->Flink)
{
mod = CONTAINING_RECORD(entry, LDR_DATA_TABLE_ENTRY,
InInitializationOrderLinks);
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, NULL );
}
}
/******************************************************************
* 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_DATA_TABLE_ENTRY *pmod )
{
PLIST_ENTRY mark, entry;
PLDR_DATA_TABLE_ENTRY mod;
mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
for (entry = mark->Flink; entry != mark; entry = entry->Flink)
{
mod = CONTAINING_RECORD(entry, LDR_DATA_TABLE_ENTRY, InMemoryOrderLinks);
if (mod->DllBase <= addr &&
(const char *)addr < (char*)mod->DllBase + mod->SizeOfImage)
{
*pmod = mod;
return STATUS_SUCCESS;
}
}
return STATUS_NO_MORE_ENTRIES;
}
/******************************************************************
* LdrEnumerateLoadedModules (NTDLL.@)
*/
NTSTATUS WINAPI LdrEnumerateLoadedModules( void *unknown, LDRENUMPROC callback, void *context )
{
LIST_ENTRY *mark, *entry;
LDR_DATA_TABLE_ENTRY *mod;
BOOLEAN stop = FALSE;
TRACE( "(%p, %p, %p)\n", unknown, callback, context );
if (unknown || !callback)
return STATUS_INVALID_PARAMETER;
RtlEnterCriticalSection( &loader_section );
mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
for (entry = mark->Flink; entry != mark; entry = entry->Flink)
{
mod = CONTAINING_RECORD( entry, LDR_DATA_TABLE_ENTRY, InMemoryOrderLinks );
callback( mod, context, &stop );
if (stop) break;
}
RtlLeaveCriticalSection( &loader_section );
return STATUS_SUCCESS;
}
/******************************************************************
* LdrRegisterDllNotification (NTDLL.@)
*/
NTSTATUS WINAPI LdrRegisterDllNotification(ULONG flags, PLDR_DLL_NOTIFICATION_FUNCTION callback,
void *context, void **cookie)
{
struct ldr_notification *notify;
TRACE( "(%x, %p, %p, %p)\n", flags, callback, context, cookie );
if (!callback || !cookie)
return STATUS_INVALID_PARAMETER;
if (flags)
FIXME( "ignoring flags %x\n", flags );
notify = RtlAllocateHeap( GetProcessHeap(), 0, sizeof(*notify) );
if (!notify) return STATUS_NO_MEMORY;
notify->callback = callback;
notify->context = context;
RtlEnterCriticalSection( &loader_section );
list_add_tail( &ldr_notifications, &notify->entry );
RtlLeaveCriticalSection( &loader_section );
*cookie = notify;
return STATUS_SUCCESS;
}
/******************************************************************
* LdrUnregisterDllNotification (NTDLL.@)
*/
NTSTATUS WINAPI LdrUnregisterDllNotification( void *cookie )
{
struct ldr_notification *notify = cookie;
TRACE( "(%p)\n", cookie );
if (!notify) return STATUS_INVALID_PARAMETER;
RtlEnterCriticalSection( &loader_section );
list_remove( &notify->entry );
RtlLeaveCriticalSection( &loader_section );
RtlFreeHeap( GetProcessHeap(), 0, notify );
return STATUS_SUCCESS;
}
/******************************************************************
* LdrLockLoaderLock (NTDLL.@)
*
* Note: some flags are not implemented.
* Flag 0x01 is used to raise exceptions on errors.
*/
NTSTATUS WINAPI LdrLockLoaderLock( ULONG flags, ULONG *result, ULONG_PTR *magic )
{
if (flags & ~0x2) FIXME( "flags %x not supported\n", flags );
if (result) *result = 0;
if (magic) *magic = 0;
if (flags & ~0x3) return STATUS_INVALID_PARAMETER_1;
if (!result && (flags & 0x2)) return STATUS_INVALID_PARAMETER_2;
if (!magic) return STATUS_INVALID_PARAMETER_3;
if (flags & 0x2)
{
if (!RtlTryEnterCriticalSection( &loader_section ))
{
*result = 2;
return STATUS_SUCCESS;
}
*result = 1;
}
else
{
RtlEnterCriticalSection( &loader_section );
if (result) *result = 1;
}
*magic = GetCurrentThreadId();
return STATUS_SUCCESS;
}
/******************************************************************
* LdrUnlockLoaderUnlock (NTDLL.@)
*/
NTSTATUS WINAPI LdrUnlockLoaderLock( ULONG flags, ULONG_PTR 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 )))
{
void *proc = name ? find_named_export( module, exports, exp_size, name->Buffer, -1, NULL )
: find_ordinal_export( module, exports, exp_size, ord - exports->Base, NULL );
if (proc)
{
*address = proc;
ret = STATUS_SUCCESS;
}
}
RtlLeaveCriticalSection( &loader_section );
return ret;
}
/***********************************************************************
* set_security_cookie
*
* Create a random security cookie for buffer overflow protection. Make
* sure it does not accidentally match the default cookie value.
*/
static void set_security_cookie( void *module, SIZE_T len )
{
static ULONG seed;
IMAGE_LOAD_CONFIG_DIRECTORY *loadcfg;
ULONG loadcfg_size;
ULONG_PTR *cookie;
loadcfg = RtlImageDirectoryEntryToData( module, TRUE, IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG, &loadcfg_size );
if (!loadcfg) return;
if (loadcfg_size < offsetof(IMAGE_LOAD_CONFIG_DIRECTORY, SecurityCookie) + sizeof(loadcfg->SecurityCookie)) return;
if (!loadcfg->SecurityCookie) return;
if (loadcfg->SecurityCookie < (ULONG_PTR)module ||
loadcfg->SecurityCookie > (ULONG_PTR)module + len - sizeof(ULONG_PTR))
{
WARN( "security cookie %p outside of image %p-%p\n",
(void *)loadcfg->SecurityCookie, module, (char *)module + len );
return;
}
cookie = (ULONG_PTR *)loadcfg->SecurityCookie;
TRACE( "initializing security cookie %p\n", cookie );
if (!seed) seed = NtGetTickCount() ^ GetCurrentProcessId();
for (;;)
{
if (*cookie == DEFAULT_SECURITY_COOKIE_16)
*cookie = RtlRandom( &seed ) >> 16; /* leave the high word clear */
else if (*cookie == DEFAULT_SECURITY_COOKIE_32)
*cookie = RtlRandom( &seed );
#ifdef DEFAULT_SECURITY_COOKIE_64
else if (*cookie == DEFAULT_SECURITY_COOKIE_64)
{
*cookie = RtlRandom( &seed );
/* fill up, but keep the highest word clear */
*cookie ^= (ULONG_PTR)RtlRandom( &seed ) << 16;
}
#endif
else
break;
}
}
static NTSTATUS perform_relocations( void *module, IMAGE_NT_HEADERS *nt, SIZE_T len )
{
char *base;
IMAGE_BASE_RELOCATION *rel, *end;
const IMAGE_DATA_DIRECTORY *relocs;
const IMAGE_SECTION_HEADER *sec;
INT_PTR delta;
ULONG protect_old[96], i;
base = (char *)nt->OptionalHeader.ImageBase;
if (module == base) return STATUS_SUCCESS; /* nothing to do */
/* no relocations are performed on non page-aligned binaries */
if (nt->OptionalHeader.SectionAlignment < page_size)
return STATUS_SUCCESS;
if (!(nt->FileHeader.Characteristics & IMAGE_FILE_DLL) && NtCurrentTeb()->Peb->ImageBaseAddress)
return STATUS_SUCCESS;
relocs = &nt->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BASERELOC];
if (nt->FileHeader.Characteristics & IMAGE_FILE_RELOCS_STRIPPED)
{
WARN( "Need to relocate module from %p to %p, but there are no relocation records\n",
base, module );
return STATUS_CONFLICTING_ADDRESSES;
}
if (!relocs->Size) return STATUS_SUCCESS;
if (!relocs->VirtualAddress) return STATUS_CONFLICTING_ADDRESSES;
if (nt->FileHeader.NumberOfSections > ARRAY_SIZE( protect_old ))
return STATUS_INVALID_IMAGE_FORMAT;
sec = (const IMAGE_SECTION_HEADER *)((const char *)&nt->OptionalHeader +
nt->FileHeader.SizeOfOptionalHeader);
for (i = 0; i < nt->FileHeader.NumberOfSections; i++)
{
void *addr = get_rva( module, sec[i].VirtualAddress );
SIZE_T size = sec[i].SizeOfRawData;
NtProtectVirtualMemory( NtCurrentProcess(), &addr,
&size, PAGE_READWRITE, &protect_old[i] );
}
TRACE( "relocating from %p-%p to %p-%p\n",
base, base + len, module, (char *)module + len );
rel = get_rva( module, relocs->VirtualAddress );
end = get_rva( module, relocs->VirtualAddress + relocs->Size );
delta = (char *)module - base;
while (rel < end - 1 && rel->SizeOfBlock)
{
if (rel->VirtualAddress >= len)
{
WARN( "invalid address %p in relocation %p\n", get_rva( module, rel->VirtualAddress ), rel );
return STATUS_ACCESS_VIOLATION;
}
rel = LdrProcessRelocationBlock( get_rva( module, rel->VirtualAddress ),
(rel->SizeOfBlock - sizeof(*rel)) / sizeof(USHORT),
(USHORT *)(rel + 1), delta );
if (!rel) return STATUS_INVALID_IMAGE_FORMAT;
}
for (i = 0; i < nt->FileHeader.NumberOfSections; i++)
{
void *addr = get_rva( module, sec[i].VirtualAddress );
SIZE_T size = sec[i].SizeOfRawData;
NtProtectVirtualMemory( NtCurrentProcess(), &addr,
&size, protect_old[i], &protect_old[i] );
}
return STATUS_SUCCESS;
}
/*************************************************************************
* build_module
*
* Build the module data for a mapped dll.
*/
static NTSTATUS build_module( LPCWSTR load_path, const UNICODE_STRING *nt_name, void **module,
const SECTION_IMAGE_INFORMATION *image_info, const struct file_id *id,
DWORD flags, WINE_MODREF **pwm )
{
static const char builtin_signature[] = "Wine builtin DLL";
char *signature = (char *)((IMAGE_DOS_HEADER *)*module + 1);
BOOL is_builtin;
IMAGE_NT_HEADERS *nt;
WINE_MODREF *wm;
NTSTATUS status;
SIZE_T map_size;
if (!(nt = RtlImageNtHeader( *module ))) return STATUS_INVALID_IMAGE_FORMAT;
map_size = (nt->OptionalHeader.SizeOfImage + page_size - 1) & ~(page_size - 1);
if ((status = perform_relocations( *module, nt, map_size ))) return status;
is_builtin = ((char *)nt - signature >= sizeof(builtin_signature) &&
!memcmp( signature, builtin_signature, sizeof(builtin_signature) ));
/* create the MODREF */
if (!(wm = alloc_module( *module, nt_name, is_builtin ))) return STATUS_NO_MEMORY;
if (id) wm->id = *id;
if (image_info->LoaderFlags) wm->ldr.Flags |= LDR_COR_IMAGE;
if (image_info->u.s.ComPlusILOnly) wm->ldr.Flags |= LDR_COR_ILONLY;
set_security_cookie( *module, map_size );
/* fixup imports */
if (!(flags & DONT_RESOLVE_DLL_REFERENCES) &&
((nt->FileHeader.Characteristics & IMAGE_FILE_DLL) ||
nt->OptionalHeader.Subsystem == IMAGE_SUBSYSTEM_NATIVE))
{
if (wm->ldr.Flags & LDR_COR_ILONLY)
status = fixup_imports_ilonly( wm, load_path, &wm->ldr.EntryPoint );
else
status = fixup_imports( wm, load_path );
if (status != STATUS_SUCCESS)
{
/* the module has only be inserted in the load & memory order lists */
RemoveEntryList(&wm->ldr.InLoadOrderLinks);
RemoveEntryList(&wm->ldr.InMemoryOrderLinks);
/* 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.
*/
*module = NULL;
return status;
}
}
TRACE( "loaded %s %p %p\n", debugstr_us(nt_name), wm, *module );
if (is_builtin)
{
if (TRACE_ON(relay)) RELAY_SetupDLL( *module );
}
else
{
if ((wm->ldr.Flags & LDR_IMAGE_IS_DLL) && TRACE_ON(snoop)) SNOOP_SetupDLL( *module );
}
TRACE_(loaddll)( "Loaded %s at %p: %s\n", debugstr_w(wm->ldr.FullDllName.Buffer), *module,
is_builtin ? "builtin" : "native" );
wm->ldr.LoadCount = 1;
*pwm = wm;
*module = NULL;
return STATUS_SUCCESS;
}
/*************************************************************************
* build_ntdll_module
*
* Build the module data for the initially-loaded ntdll.
*/
static void build_ntdll_module(void)
{
MEMORY_BASIC_INFORMATION meminfo;
UNICODE_STRING nt_name;
WINE_MODREF *wm;
RtlInitUnicodeString( &nt_name, L"\\??\\C:\\windows\\system32\\ntdll.dll" );
NtQueryVirtualMemory( GetCurrentProcess(), build_ntdll_module, MemoryBasicInformation,
&meminfo, sizeof(meminfo), NULL );
wm = alloc_module( meminfo.AllocationBase, &nt_name, TRUE );
assert( wm );
wm->ldr.Flags &= ~LDR_DONT_RESOLVE_REFS;
if (TRACE_ON(relay)) RELAY_SetupDLL( meminfo.AllocationBase );
}
#ifdef _WIN64
/* convert PE header to 64-bit when loading a 32-bit IL-only module into a 64-bit process */
static BOOL convert_to_pe64( HMODULE module, const SECTION_IMAGE_INFORMATION *info )
{
static const ULONG copy_dirs[] = { IMAGE_DIRECTORY_ENTRY_RESOURCE,
IMAGE_DIRECTORY_ENTRY_SECURITY,
IMAGE_DIRECTORY_ENTRY_BASERELOC,
IMAGE_DIRECTORY_ENTRY_DEBUG,
IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR };
IMAGE_OPTIONAL_HEADER32 hdr32 = { IMAGE_NT_OPTIONAL_HDR32_MAGIC };
IMAGE_OPTIONAL_HEADER64 hdr64 = { IMAGE_NT_OPTIONAL_HDR64_MAGIC };
IMAGE_NT_HEADERS *nt = RtlImageNtHeader( module );
SIZE_T hdr_size = min( sizeof(hdr32), nt->FileHeader.SizeOfOptionalHeader );
IMAGE_SECTION_HEADER *sec = (IMAGE_SECTION_HEADER *)((char *)&nt->OptionalHeader + hdr_size);
SIZE_T size = min( nt->OptionalHeader.SizeOfHeaders, nt->OptionalHeader.SizeOfImage );
void *addr = module;
ULONG i, old_prot;
if (nt->OptionalHeader.Magic != IMAGE_NT_OPTIONAL_HDR32_MAGIC) return TRUE; /* already 64-bit */
if (!info->ImageContainsCode) return TRUE; /* no need to convert */
TRACE( "%p\n", module );
if (NtProtectVirtualMemory( NtCurrentProcess(), &addr, &size, PAGE_READWRITE, &old_prot ))
return FALSE;
if ((char *)module + size < (char *)(nt + 1) + nt->FileHeader.NumberOfSections * sizeof(*sec))
{
NtProtectVirtualMemory( NtCurrentProcess(), &addr, &size, old_prot, &old_prot );
return FALSE;
}
memcpy( &hdr32, &nt->OptionalHeader, hdr_size );
memcpy( &hdr64, &hdr32, offsetof( IMAGE_OPTIONAL_HEADER64, SizeOfStackReserve ));
hdr64.Magic = IMAGE_NT_OPTIONAL_HDR64_MAGIC;
hdr64.AddressOfEntryPoint = 0;
hdr64.ImageBase = hdr32.ImageBase;
hdr64.SizeOfStackReserve = hdr32.SizeOfStackReserve;
hdr64.SizeOfStackCommit = hdr32.SizeOfStackCommit;
hdr64.SizeOfHeapReserve = hdr32.SizeOfHeapReserve;
hdr64.SizeOfHeapCommit = hdr32.SizeOfHeapCommit;
hdr64.LoaderFlags = hdr32.LoaderFlags;
hdr64.NumberOfRvaAndSizes = hdr32.NumberOfRvaAndSizes;
for (i = 0; i < ARRAY_SIZE( copy_dirs ); i++)
hdr64.DataDirectory[copy_dirs[i]] = hdr32.DataDirectory[copy_dirs[i]];
memmove( nt + 1, sec, nt->FileHeader.NumberOfSections * sizeof(*sec) );
nt->FileHeader.SizeOfOptionalHeader = sizeof(hdr64);
nt->OptionalHeader = hdr64;
NtProtectVirtualMemory( NtCurrentProcess(), &addr, &size, old_prot, &old_prot );
return TRUE;
}
/* check COM header for ILONLY flag, ignoring runtime version */
static BOOL get_cor_header( HANDLE file, const SECTION_IMAGE_INFORMATION *info, IMAGE_COR20_HEADER *cor )
{
IMAGE_DOS_HEADER mz;
IMAGE_NT_HEADERS32 nt;
IO_STATUS_BLOCK io;
LARGE_INTEGER offset;
IMAGE_SECTION_HEADER sec[96];
unsigned int i, count;
DWORD va, size;
offset.QuadPart = 0;
if (NtReadFile( file, 0, NULL, NULL, &io, &mz, sizeof(mz), &offset, NULL )) return FALSE;
if (io.Information != sizeof(mz)) return FALSE;
if (mz.e_magic != IMAGE_DOS_SIGNATURE) return FALSE;
offset.QuadPart = mz.e_lfanew;
if (NtReadFile( file, 0, NULL, NULL, &io, &nt, sizeof(nt), &offset, NULL )) return FALSE;
if (io.Information != sizeof(nt)) return FALSE;
if (nt.Signature != IMAGE_NT_SIGNATURE) return FALSE;
if (nt.OptionalHeader.Magic != IMAGE_NT_OPTIONAL_HDR32_MAGIC) return FALSE;
va = nt.OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR].VirtualAddress;
size = nt.OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR].Size;
if (!va || size < sizeof(*cor)) return FALSE;
offset.QuadPart += offsetof( IMAGE_NT_HEADERS32, OptionalHeader ) + nt.FileHeader.SizeOfOptionalHeader;
count = min( 96, nt.FileHeader.NumberOfSections );
if (NtReadFile( file, 0, NULL, NULL, &io, &sec, count * sizeof(*sec), &offset, NULL )) return FALSE;
if (io.Information != count * sizeof(*sec)) return FALSE;
for (i = 0; i < count; i++)
{
if (va < sec[i].VirtualAddress) continue;
if (sec[i].Misc.VirtualSize && va - sec[i].VirtualAddress >= sec[i].Misc.VirtualSize) continue;
offset.QuadPart = sec->PointerToRawData + va - sec[i].VirtualAddress;
if (NtReadFile( file, 0, NULL, NULL, &io, cor, sizeof(*cor), &offset, NULL )) return FALSE;
return (io.Information == sizeof(*cor));
}
return FALSE;
}
#endif
/* On WoW64 setups, an image mapping can also be created for the other 32/64 CPU */
/* but it cannot necessarily be loaded as a dll, so we need some additional checks */
static BOOL is_valid_binary( HANDLE file, const SECTION_IMAGE_INFORMATION *info )
{
#ifdef __i386__
return info->Machine == IMAGE_FILE_MACHINE_I386;
#elif defined(__arm__)
return info->Machine == IMAGE_FILE_MACHINE_ARM ||
info->Machine == IMAGE_FILE_MACHINE_THUMB ||
info->Machine == IMAGE_FILE_MACHINE_ARMNT;
#elif defined(_WIN64) /* support 32-bit IL-only images on 64-bit */
#ifdef __x86_64__
if (info->Machine == IMAGE_FILE_MACHINE_AMD64) return TRUE;
#else
if (info->Machine == IMAGE_FILE_MACHINE_ARM64) return TRUE;
#endif
if (!info->ImageContainsCode) return TRUE;
if (!(info->u.s.ComPlusNativeReady))
{
IMAGE_COR20_HEADER cor_header;
if (!get_cor_header( file, info, &cor_header )) return FALSE;
if (!(cor_header.Flags & COMIMAGE_FLAGS_ILONLY)) return FALSE;
}
return TRUE;
#else
return FALSE; /* no wow64 support on other platforms */
#endif
}
/******************************************************************
* get_module_path_end
*
* Returns the end of the directory component of the module path.
*/
static inline const WCHAR *get_module_path_end( const WCHAR *module )
{
const WCHAR *p;
const WCHAR *mod_end = module;
if ((p = wcsrchr( mod_end, '\\' ))) mod_end = p;
if ((p = wcsrchr( mod_end, '/' ))) mod_end = p;
if (mod_end == module + 2 && module[1] == ':') mod_end++;
if (mod_end == module && module[0] && module[1] == ':') mod_end += 2;
return mod_end;
}
/******************************************************************
* append_path
*
* Append a counted string to the load path. Helper for get_dll_load_path.
*/
static inline WCHAR *append_path( WCHAR *p, const WCHAR *str, int len )
{
if (len == -1) len = wcslen(str);
if (!len) return p;
memcpy( p, str, len * sizeof(WCHAR) );
p[len] = ';';
return p + len + 1;
}
/******************************************************************
* get_dll_load_path
*/
static NTSTATUS get_dll_load_path( LPCWSTR module, LPCWSTR dll_dir, ULONG safe_mode, WCHAR **path )
{
const WCHAR *mod_end = module;
UNICODE_STRING name, value;
WCHAR *p, *ret;
int len = ARRAY_SIZE(system_path) + 1, path_len = 0;
if (module)
{
mod_end = get_module_path_end( module );
len += (mod_end - module) + 1;
}
RtlInitUnicodeString( &name, L"PATH" );
value.Length = 0;
value.MaximumLength = 0;
value.Buffer = NULL;
if (RtlQueryEnvironmentVariable_U( NULL, &name, &value ) == STATUS_BUFFER_TOO_SMALL)
path_len = value.Length;
if (dll_dir) len += wcslen( dll_dir ) + 1;
else len += 2; /* current directory */
if (!(p = ret = RtlAllocateHeap( GetProcessHeap(), 0, path_len + len * sizeof(WCHAR) )))
return STATUS_NO_MEMORY;
p = append_path( p, module, mod_end - module );
if (dll_dir) p = append_path( p, dll_dir, -1 );
else if (!safe_mode) p = append_path( p, L".", -1 );
p = append_path( p, system_path, -1 );
if (!dll_dir && safe_mode) p = append_path( p, L".", -1 );
value.Buffer = p;
value.MaximumLength = path_len;
while (RtlQueryEnvironmentVariable_U( NULL, &name, &value ) == STATUS_BUFFER_TOO_SMALL)
{
WCHAR *new_ptr;
/* grow the buffer and retry */
path_len = value.Length;
if (!(new_ptr = RtlReAllocateHeap( GetProcessHeap(), 0, ret, path_len + len * sizeof(WCHAR) )))
{
RtlFreeHeap( GetProcessHeap(), 0, ret );
return STATUS_NO_MEMORY;
}
value.Buffer = new_ptr + (value.Buffer - ret);
value.MaximumLength = path_len;
ret = new_ptr;
}
value.Buffer[value.Length / sizeof(WCHAR)] = 0;
*path = ret;
return STATUS_SUCCESS;
}
/******************************************************************
* get_dll_load_path_search_flags
*/
static NTSTATUS get_dll_load_path_search_flags( LPCWSTR module, DWORD flags, WCHAR **path )
{
const WCHAR *image = NULL, *mod_end, *image_end;
struct dll_dir_entry *dir;
WCHAR *p, *ret;
int len = 1;
if (flags & LOAD_LIBRARY_SEARCH_DEFAULT_DIRS)
flags |= (LOAD_LIBRARY_SEARCH_APPLICATION_DIR |
LOAD_LIBRARY_SEARCH_USER_DIRS |
LOAD_LIBRARY_SEARCH_SYSTEM32);
if (flags & LOAD_LIBRARY_SEARCH_DLL_LOAD_DIR)
{
DWORD type = RtlDetermineDosPathNameType_U( module );
if (type != ABSOLUTE_DRIVE_PATH && type != ABSOLUTE_PATH && type != DEVICE_PATH)
return STATUS_INVALID_PARAMETER;
mod_end = get_module_path_end( module );
len += (mod_end - module) + 1;
}
else module = NULL;
if (flags & LOAD_LIBRARY_SEARCH_APPLICATION_DIR)
{
image = NtCurrentTeb()->Peb->ProcessParameters->ImagePathName.Buffer;
image_end = get_module_path_end( image );
len += (image_end - image) + 1;
}
if (flags & LOAD_LIBRARY_SEARCH_USER_DIRS)
{
LIST_FOR_EACH_ENTRY( dir, &dll_dir_list, struct dll_dir_entry, entry )
len += wcslen( dir->dir + 4 /* \??\ */ ) + 1;
if (dll_directory.Length) len += dll_directory.Length / sizeof(WCHAR) + 1;
}
if (flags & LOAD_LIBRARY_SEARCH_SYSTEM32) len += wcslen( system_dir );
if ((p = ret = RtlAllocateHeap( GetProcessHeap(), 0, len * sizeof(WCHAR) )))
{
if (module) p = append_path( p, module, mod_end - module );
if (image) p = append_path( p, image, image_end - image );
if (flags & LOAD_LIBRARY_SEARCH_USER_DIRS)
{
LIST_FOR_EACH_ENTRY( dir, &dll_dir_list, struct dll_dir_entry, entry )
p = append_path( p, dir->dir + 4 /* \??\ */, -1 );
p = append_path( p, dll_directory.Buffer, dll_directory.Length / sizeof(WCHAR) );
}
if (flags & LOAD_LIBRARY_SEARCH_SYSTEM32) wcscpy( p, system_dir );
else
{
if (p > ret) p--;
*p = 0;
}
}
*path = ret;
return STATUS_SUCCESS;
}
/***********************************************************************
* open_dll_file
*
* Open a file for a new dll. Helper for find_dll_file.
*/
static NTSTATUS open_dll_file( UNICODE_STRING *nt_name, WINE_MODREF **pwm, HANDLE *mapping,
SECTION_IMAGE_INFORMATION *image_info, struct file_id *id )
{
FILE_BASIC_INFORMATION info;
OBJECT_ATTRIBUTES attr;
IO_STATUS_BLOCK io;
LARGE_INTEGER size;
FILE_OBJECTID_BUFFER fid;
NTSTATUS status;
HANDLE handle;
if ((*pwm = find_fullname_module( nt_name ))) return STATUS_SUCCESS;
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.Attributes = OBJ_CASE_INSENSITIVE;
attr.ObjectName = nt_name;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
if ((status = NtOpenFile( &handle, GENERIC_READ | SYNCHRONIZE, &attr, &io,
FILE_SHARE_READ | FILE_SHARE_DELETE,
FILE_SYNCHRONOUS_IO_NONALERT | FILE_NON_DIRECTORY_FILE )))
{
if (status != STATUS_OBJECT_PATH_NOT_FOUND &&
status != STATUS_OBJECT_NAME_NOT_FOUND &&
!NtQueryAttributesFile( &attr, &info ))
{
/* if the file exists but failed to open, report the error */
return status;
}
/* otherwise continue searching */
return STATUS_DLL_NOT_FOUND;
}
if (!NtFsControlFile( handle, 0, NULL, NULL, &io, FSCTL_GET_OBJECT_ID, NULL, 0, &fid, sizeof(fid) ))
{
memcpy( id, fid.ObjectId, sizeof(*id) );
if ((*pwm = find_fileid_module( id )))
{
TRACE( "%s is the same file as existing module %p %s\n", debugstr_w( nt_name->Buffer ),
(*pwm)->ldr.DllBase, debugstr_w( (*pwm)->ldr.FullDllName.Buffer ));
NtClose( handle );
return STATUS_SUCCESS;
}
}
size.QuadPart = 0;
status = NtCreateSection( mapping, STANDARD_RIGHTS_REQUIRED | SECTION_QUERY |
SECTION_MAP_READ | SECTION_MAP_EXECUTE,
NULL, &size, PAGE_EXECUTE_READ, SEC_IMAGE, handle );
if (!status)
{
NtQuerySection( *mapping, SectionImageInformation, image_info, sizeof(*image_info), NULL );
if (!is_valid_binary( handle, image_info ))
{
TRACE( "%s is for arch %x, continuing search\n", debugstr_us(nt_name), image_info->Machine );
status = STATUS_IMAGE_MACHINE_TYPE_MISMATCH;
NtClose( *mapping );
*mapping = NULL;
}
}
NtClose( handle );
return status;
}
/******************************************************************************
* find_existing_module
*
* Find an existing module that is the same mapping as the new module.
*/
static WINE_MODREF *find_existing_module( HMODULE module )
{
WINE_MODREF *wm;
LIST_ENTRY *mark, *entry;
LDR_DATA_TABLE_ENTRY *mod;
IMAGE_NT_HEADERS *nt = RtlImageNtHeader( module );
if ((wm = get_modref( module ))) return wm;
mark = &NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList;
for (entry = mark->Flink; entry != mark; entry = entry->Flink)
{
mod = CONTAINING_RECORD( entry, LDR_DATA_TABLE_ENTRY, InMemoryOrderLinks );
if (mod->TimeDateStamp != nt->FileHeader.TimeDateStamp) continue;
if (mod->CheckSum != nt->OptionalHeader.CheckSum) continue;
if (NtAreMappedFilesTheSame( mod->DllBase, module ) != STATUS_SUCCESS) continue;
return CONTAINING_RECORD( mod, WINE_MODREF, ldr );
}
return NULL;
}
/******************************************************************************
* load_native_dll (internal)
*/
static NTSTATUS load_native_dll( LPCWSTR load_path, const UNICODE_STRING *nt_name, HANDLE mapping,
const SECTION_IMAGE_INFORMATION *image_info, const struct file_id *id,
DWORD flags, WINE_MODREF** pwm )
{
void *module = NULL;
SIZE_T len = 0;
NTSTATUS status = NtMapViewOfSection( mapping, NtCurrentProcess(), &module, 0, 0, NULL, &len,
ViewShare, 0, PAGE_EXECUTE_READ );
if (status == STATUS_IMAGE_NOT_AT_BASE) status = STATUS_SUCCESS;
if (status) return status;
if ((*pwm = find_existing_module( module ))) /* already loaded */
{
if ((*pwm)->ldr.LoadCount != -1) (*pwm)->ldr.LoadCount++;
TRACE( "found %s for %s at %p, count=%d\n",
debugstr_us(&(*pwm)->ldr.FullDllName), debugstr_us(nt_name),
(*pwm)->ldr.DllBase, (*pwm)->ldr.LoadCount);
if (module != (*pwm)->ldr.DllBase) NtUnmapViewOfSection( NtCurrentProcess(), module );
return STATUS_SUCCESS;
}
#ifdef _WIN64
if (!convert_to_pe64( module, image_info )) status = STATUS_INVALID_IMAGE_FORMAT;
#endif
if (!status) status = build_module( load_path, nt_name, &module, image_info, id, flags, pwm );
if (status && module) NtUnmapViewOfSection( NtCurrentProcess(), module );
return status;
}
/***********************************************************************
* load_so_dll
*/
static NTSTATUS load_so_dll( LPCWSTR load_path, const UNICODE_STRING *nt_name,
DWORD flags, WINE_MODREF **pwm )
{
void *module;
NTSTATUS status;
WINE_MODREF *wm;
UNICODE_STRING win_name = *nt_name;
TRACE( "trying %s as so lib\n", debugstr_us(&win_name) );
if ((status = unix_funcs->load_so_dll( &win_name, &module )))
{
WARN( "failed to load .so lib %s\n", debugstr_us(nt_name) );
if (status == STATUS_INVALID_IMAGE_FORMAT) status = STATUS_INVALID_IMAGE_NOT_MZ;
return status;
}
if ((wm = get_modref( module ))) /* already loaded */
{
TRACE( "Found %s at %p for builtin %s\n",
debugstr_w(wm->ldr.FullDllName.Buffer), wm->ldr.DllBase, debugstr_us(nt_name) );
if (wm->ldr.LoadCount != -1) wm->ldr.LoadCount++;
}
else
{
SECTION_IMAGE_INFORMATION image_info = { 0 };
if ((status = build_module( load_path, &win_name, &module, &image_info, NULL, flags, &wm )))
{
if (module) NtUnmapViewOfSection( NtCurrentProcess(), module );
return status;
}
TRACE_(loaddll)( "Loaded %s at %p: builtin\n", debugstr_us(nt_name), module );
}
*pwm = wm;
return STATUS_SUCCESS;
}
/*************************************************************************
* build_main_module
*
* Build the module data for the main image.
*/
static WINE_MODREF *build_main_module(void)
{
SECTION_IMAGE_INFORMATION info;
UNICODE_STRING nt_name;
WINE_MODREF *wm;
NTSTATUS status;
RTL_USER_PROCESS_PARAMETERS *params = NtCurrentTeb()->Peb->ProcessParameters;
void *module = NtCurrentTeb()->Peb->ImageBaseAddress;
default_load_path = params->DllPath.Buffer;
if (!default_load_path)
get_dll_load_path( params->ImagePathName.Buffer, NULL, dll_safe_mode, &default_load_path );
NtQueryInformationProcess( GetCurrentProcess(), ProcessImageInformation, &info, sizeof(info), NULL );
if (info.ImageCharacteristics & IMAGE_FILE_DLL)
{
MESSAGE( "wine: %s is a dll, not an executable\n", debugstr_us(&params->ImagePathName) );
NtTerminateProcess( GetCurrentProcess(), STATUS_INVALID_IMAGE_FORMAT );
}
#ifdef _WIN64
if (!convert_to_pe64( module, &info ))
{
status = STATUS_INVALID_IMAGE_FORMAT;
goto failed;
}
#endif
status = RtlDosPathNameToNtPathName_U_WithStatus( params->ImagePathName.Buffer, &nt_name, NULL, NULL );
if (status) goto failed;
status = build_module( NULL, &nt_name, &module, &info, NULL, DONT_RESOLVE_DLL_REFERENCES, &wm );
RtlFreeUnicodeString( &nt_name );
if (!status) return wm;
failed:
MESSAGE( "wine: failed to create main module for %s, status %x\n",
debugstr_us(&params->ImagePathName), status );
NtTerminateProcess( GetCurrentProcess(), status );
return NULL; /* unreached */
}
/***********************************************************************
* 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','\\'};
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 (!info->lpAssemblyManifestPath)
{
status = STATUS_SXS_KEY_NOT_FOUND;
goto done;
}
if ((p = wcsrchr( info->lpAssemblyManifestPath, '\\' )))
{
DWORD len, dirlen = info->ulAssemblyDirectoryNameLength / sizeof(WCHAR);
p++;
len = wcslen( p );
if (!dirlen || len <= dirlen ||
RtlCompareUnicodeStrings( p, dirlen, info->lpAssemblyDirectoryName, dirlen, TRUE ) ||
wcsicmp( p + dirlen, L".manifest" ))
{
/* 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;
wcscpy( p, libname );
goto done;
}
}
if (!info->lpAssemblyDirectoryName)
{
status = STATUS_SXS_KEY_NOT_FOUND;
goto done;
}
needed = (wcslen(windows_dir) * sizeof(WCHAR) +
sizeof(winsxsW) + info->ulAssemblyDirectoryNameLength + nameW.Length + 2*sizeof(WCHAR));
if (!(*fullname = p = RtlAllocateHeap( GetProcessHeap(), 0, needed )))
{
status = STATUS_NO_MEMORY;
goto done;
}
wcscpy( p, windows_dir );
p += wcslen(p);
memcpy( p, winsxsW, sizeof(winsxsW) );
p += ARRAY_SIZE( winsxsW );
memcpy( p, info->lpAssemblyDirectoryName, info->ulAssemblyDirectoryNameLength );
p += info->ulAssemblyDirectoryNameLength / sizeof(WCHAR);
*p++ = '\\';
wcscpy( p, libname );
done:
RtlFreeHeap( GetProcessHeap(), 0, info );
RtlReleaseActivationContext( data.hActCtx );
return status;
}
/***********************************************************************
* get_env_var
*/
static NTSTATUS get_env_var( const WCHAR *name, SIZE_T extra, UNICODE_STRING *ret )
{
NTSTATUS status;
SIZE_T len, size = 1024 + extra;
for (;;)
{
ret->Buffer = RtlAllocateHeap( GetProcessHeap(), 0, size );
status = RtlQueryEnvironmentVariable( NULL, name, wcslen(name),
ret->Buffer, size - extra - 1, &len );
if (!status)
{
ret->Buffer[len] = 0;
ret->Length = len * sizeof(WCHAR);
ret->MaximumLength = size * sizeof(WCHAR);
return status;
}
RtlFreeHeap( GetProcessHeap(), 0, ret->Buffer );
if (status != STATUS_BUFFER_TOO_SMALL) return status;
size = len + 1 + extra;
}
}
/***********************************************************************
* find_builtin_without_file
*
* Find a builtin dll when the corresponding file cannot be found in the prefix.
* This is used during prefix bootstrap.
*/
static NTSTATUS find_builtin_without_file( const WCHAR *name, UNICODE_STRING *new_name,
WINE_MODREF **pwm, HANDLE *mapping,
SECTION_IMAGE_INFORMATION *image_info, struct file_id *id )
{
const WCHAR *ext;
WCHAR dllpath[32];
DWORD i, len;
NTSTATUS status = STATUS_DLL_NOT_FOUND;
BOOL found_image = FALSE;
if (!get_env_var( L"WINEBUILDDIR", 20 + 2 * wcslen(name), new_name ))
{
RtlAppendUnicodeToString( new_name, L"\\dlls\\" );
RtlAppendUnicodeToString( new_name, name );
if ((ext = wcsrchr( name, '.' )) && !wcscmp( ext, L".dll" )) new_name->Length -= 4 * sizeof(WCHAR);
RtlAppendUnicodeToString( new_name, L"\\" );
RtlAppendUnicodeToString( new_name, name );
status = open_dll_file( new_name, pwm, mapping, image_info, id );
if (status != STATUS_DLL_NOT_FOUND) goto done;
RtlAppendUnicodeToString( new_name, L".fake" );
status = open_dll_file( new_name, pwm, mapping, image_info, id );
if (status != STATUS_DLL_NOT_FOUND) goto done;
RtlFreeUnicodeString( new_name );
}
for (i = 0; ; i++)
{
swprintf( dllpath, ARRAY_SIZE(dllpath), L"WINEDLLDIR%u", i );
if (get_env_var( dllpath, 20 + wcslen(name), new_name )) break;
len = new_name->Length;
RtlAppendUnicodeToString( new_name, L"\\" );
RtlAppendUnicodeToString( new_name, name );
status = open_dll_file( new_name, pwm, mapping, image_info, id );
if (status == STATUS_IMAGE_MACHINE_TYPE_MISMATCH) found_image = TRUE;
else if (status != STATUS_DLL_NOT_FOUND) goto done;
new_name->Length = len;
RtlAppendUnicodeToString( new_name, L"\\fakedlls\\" );
RtlAppendUnicodeToString( new_name, name );
status = open_dll_file( new_name, pwm, mapping, image_info, id );
if (status == STATUS_IMAGE_MACHINE_TYPE_MISMATCH) found_image = TRUE;
else if (status != STATUS_DLL_NOT_FOUND) goto done;
RtlFreeUnicodeString( new_name );
}
if (found_image) status = STATUS_IMAGE_MACHINE_TYPE_MISMATCH;
done:
RtlFreeUnicodeString( new_name );
if (!status)
{
new_name->Length = (4 + wcslen(system_dir) + wcslen(name)) * sizeof(WCHAR);
new_name->Buffer = RtlAllocateHeap( GetProcessHeap(), 0, new_name->Length + sizeof(WCHAR) );
wcscpy( new_name->Buffer, L"\\??\\" );
wcscat( new_name->Buffer, system_dir );
wcscat( new_name->Buffer, name );
}
return status;
}
/***********************************************************************
* search_dll_file
*
* Search for dll in the specified paths.
*/
static NTSTATUS search_dll_file( LPCWSTR paths, LPCWSTR search, UNICODE_STRING *nt_name,
WINE_MODREF **pwm, HANDLE *mapping, SECTION_IMAGE_INFORMATION *image_info,
struct file_id *id )
{
WCHAR *name;
BOOL found_image = FALSE;
NTSTATUS status = STATUS_DLL_NOT_FOUND;
ULONG len;
if (!paths) paths = default_load_path;
len = wcslen( paths );
if (len < wcslen( system_dir )) len = wcslen( system_dir );
len += wcslen( search ) + 2;
if (!(name = RtlAllocateHeap( GetProcessHeap(), 0, len * sizeof(WCHAR) )))
return STATUS_NO_MEMORY;
while (*paths)
{
LPCWSTR ptr = paths;
while (*ptr && *ptr != ';') ptr++;
len = ptr - paths;
if (*ptr == ';') ptr++;
memcpy( name, paths, len * sizeof(WCHAR) );
if (len && name[len - 1] != '\\') name[len++] = '\\';
wcscpy( name + len, search );
nt_name->Buffer = NULL;
if ((status = RtlDosPathNameToNtPathName_U_WithStatus( name, nt_name, NULL, NULL ))) goto done;
status = open_dll_file( nt_name, pwm, mapping, image_info, id );
if (status == STATUS_IMAGE_MACHINE_TYPE_MISMATCH) found_image = TRUE;
else if (status != STATUS_DLL_NOT_FOUND) goto done;
RtlFreeUnicodeString( nt_name );
paths = ptr;
}
if (found_image)
status = STATUS_IMAGE_MACHINE_TYPE_MISMATCH;
else if (is_prefix_bootstrap && !contains_path( search ))
status = find_builtin_without_file( search, nt_name, pwm, mapping, image_info, id );
done:
RtlFreeHeap( GetProcessHeap(), 0, name );
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, const WCHAR *default_ext,
UNICODE_STRING *nt_name, WINE_MODREF **pwm, HANDLE *mapping,
SECTION_IMAGE_INFORMATION *image_info, struct file_id *id )
{
WCHAR *ext, *dllname;
NTSTATUS status;
ULONG wow64_old_value = 0;
*pwm = NULL;
dllname = NULL;
if (default_ext) /* first append default extension */
{
if (!(ext = wcsrchr( libname, '.')) || wcschr( ext, '/' ) || wcschr( ext, '\\'))
{
if (!(dllname = RtlAllocateHeap( GetProcessHeap(), 0,
(wcslen(libname)+wcslen(default_ext)+1) * sizeof(WCHAR))))
return STATUS_NO_MEMORY;
wcscpy( dllname, libname );
wcscat( dllname, default_ext );
libname = dllname;
}
}
/* Win 7/2008R2 and up seem to re-enable WoW64 FS redirection when loading libraries */
RtlWow64EnableFsRedirectionEx( 0, &wow64_old_value );
nt_name->Buffer = NULL;
if (!contains_path( libname ))
{
WCHAR *fullname = NULL;
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) goto done;
if ((*pwm = find_basename_module( libname )) != NULL)
{
status = STATUS_SUCCESS;
goto done;
}
/* 16-bit files can't be loaded from the prefix */
if (libname[0] && libname[1] && !wcscmp( libname + wcslen(libname) - 2, L"16" ))
{
status = find_builtin_without_file( libname, nt_name, pwm, mapping, image_info, id );
goto done;
}
}
}
if (RtlDetermineDosPathNameType_U( libname ) == RELATIVE_PATH)
status = search_dll_file( load_path, libname, nt_name, pwm, mapping, image_info, id );
else if (!(status = RtlDosPathNameToNtPathName_U_WithStatus( libname, nt_name, NULL, NULL )))
status = open_dll_file( nt_name, pwm, mapping, image_info, id );
if (status == STATUS_IMAGE_MACHINE_TYPE_MISMATCH) status = STATUS_INVALID_IMAGE_FORMAT;
done:
RtlFreeHeap( GetProcessHeap(), 0, dllname );
if (wow64_old_value) RtlWow64EnableFsRedirectionEx( 1, &wow64_old_value );
return status;
}
/***********************************************************************
* 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( const WCHAR *load_path, const WCHAR *libname, const WCHAR *default_ext,
DWORD flags, WINE_MODREF** pwm )
{
UNICODE_STRING nt_name;
struct file_id id;
HANDLE mapping = 0;
SECTION_IMAGE_INFORMATION image_info;
NTSTATUS nts;
void *prev;
TRACE( "looking for %s in %s\n", debugstr_w(libname), debugstr_w(load_path) );
nts = find_dll_file( load_path, libname, default_ext, &nt_name, pwm, &mapping, &image_info, &id );
if (*pwm) /* found already loaded module */
{
if ((*pwm)->ldr.LoadCount != -1) (*pwm)->ldr.LoadCount++;
TRACE("Found %s for %s at %p, count=%d\n",
debugstr_w((*pwm)->ldr.FullDllName.Buffer), debugstr_w(libname),
(*pwm)->ldr.DllBase, (*pwm)->ldr.LoadCount);
RtlFreeUnicodeString( &nt_name );
return STATUS_SUCCESS;
}
if (nts && nts != STATUS_INVALID_IMAGE_NOT_MZ) goto done;
prev = NtCurrentTeb()->Tib.ArbitraryUserPointer;
NtCurrentTeb()->Tib.ArbitraryUserPointer = nt_name.Buffer + 4;
switch (nts)
{
case STATUS_INVALID_IMAGE_NOT_MZ: /* not in PE format, maybe it's a .so file */
nts = load_so_dll( load_path, &nt_name, flags, pwm );
break;
case STATUS_SUCCESS: /* valid PE file */
nts = load_native_dll( load_path, &nt_name, mapping, &image_info, &id, flags, pwm );
break;
}
NtCurrentTeb()->Tib.ArbitraryUserPointer = prev;
done:
if (nts == STATUS_SUCCESS)
TRACE("Loaded module %s at %p\n", debugstr_us(&nt_name), (*pwm)->ldr.DllBase);
else
WARN("Failed to load module %s; status=%x\n", debugstr_w(libname), nts);
if (mapping) NtClose( mapping );
RtlFreeUnicodeString( &nt_name );
return nts;
}
/***********************************************************************
* __wine_init_unix_lib
*/
NTSTATUS __cdecl __wine_init_unix_lib( HMODULE module, DWORD reason, const void *ptr_in, void *ptr_out )
{
WINE_MODREF *wm;
NTSTATUS ret;
RtlEnterCriticalSection( &loader_section );
if ((wm = get_modref( module ))) ret = unix_funcs->init_unix_lib( module, reason, ptr_in, ptr_out );
else ret = STATUS_INVALID_HANDLE;
RtlLeaveCriticalSection( &loader_section );
return ret;
}
/******************************************************************
* LdrLoadDll (NTDLL.@)
*/
NTSTATUS WINAPI DECLSPEC_HOTPATCH LdrLoadDll(LPCWSTR path_name, DWORD flags,
const UNICODE_STRING *libname, HMODULE* hModule)
{
WINE_MODREF *wm;
NTSTATUS nts;
RtlEnterCriticalSection( &loader_section );
nts = load_dll( path_name, libname->Buffer, L".dll", 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.DllBase);
wm = NULL;
}
}
*hModule = (wm) ? wm->ldr.DllBase : NULL;
RtlLeaveCriticalSection( &loader_section );
return nts;
}
/******************************************************************
* LdrGetDllHandle (NTDLL.@)
*/
NTSTATUS WINAPI LdrGetDllHandle( LPCWSTR load_path, ULONG flags, const UNICODE_STRING *name, HMODULE *base )
{
NTSTATUS status;
UNICODE_STRING nt_name;
WINE_MODREF *wm;
HANDLE mapping;
SECTION_IMAGE_INFORMATION image_info;
struct file_id id;
RtlEnterCriticalSection( &loader_section );
status = find_dll_file( load_path, name->Buffer, L".dll", &nt_name, &wm, &mapping, &image_info, &id );
if (wm) *base = wm->ldr.DllBase;
else
{
if (status == STATUS_SUCCESS) NtClose( mapping );
status = STATUS_DLL_NOT_FOUND;
}
RtlFreeUnicodeString( &nt_name );
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 & ~LDR_ADDREF_DLL_PIN) FIXME( "%p flags %x not implemented\n", module, flags );
RtlEnterCriticalSection( &loader_section );
if ((wm = get_modref( module )))
{
if (flags & LDR_ADDREF_DLL_PIN)
wm->ldr.LoadCount = -1;
else
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;
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;
#ifdef _WIN64
case IMAGE_REL_BASED_DIR64:
*(INT_PTR *)((char *)page + offset) += delta;
break;
#elif defined(__arm__)
case IMAGE_REL_BASED_THUMB_MOV32:
{
DWORD *inst = (DWORD *)((char *)page + offset);
WORD lo = ((inst[0] << 1) & 0x0800) + ((inst[0] << 12) & 0xf000) +
((inst[0] >> 20) & 0x0700) + ((inst[0] >> 16) & 0x00ff);
WORD hi = ((inst[1] << 1) & 0x0800) + ((inst[1] << 12) & 0xf000) +
((inst[1] >> 20) & 0x0700) + ((inst[1] >> 16) & 0x00ff);
DWORD imm = MAKELONG( lo, hi ) + delta;
lo = LOWORD( imm );
hi = HIWORD( imm );
if ((inst[0] & 0x8000fbf0) != 0x0000f240 || (inst[1] & 0x8000fbf0) != 0x0000f2c0)
ERR("wrong Thumb2 instruction @%p %08x:%08x, expected MOVW/MOVT\n",
inst, inst[0], inst[1] );
inst[0] = (inst[0] & 0x8f00fbf0) + ((lo >> 1) & 0x0400) + ((lo >> 12) & 0x000f) +
((lo << 20) & 0x70000000) + ((lo << 16) & 0xff0000);
inst[1] = (inst[1] & 0x8f00fbf0) + ((hi >> 1) & 0x0400) + ((hi >> 12) & 0x000f) +
((hi << 20) & 0x70000000) + ((hi << 16) & 0xff0000);
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;
LDR_DATA_TABLE_ENTRY *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_DATA_TABLE_ENTRY, InLoadOrderLinks);
size += sizeof(*sm);
if (size <= buf_size)
{
sm->Section = 0; /* FIXME */
sm->MappedBaseAddress = mod->DllBase;
sm->ImageBaseAddress = mod->DllBase;
sm->ImageSize = mod->SizeOfImage;
sm->Flags = mod->Flags;
sm->LoadOrderIndex = id++;
sm->InitOrderIndex = 0; /* FIXME */
sm->LoadCount = mod->LoadCount;
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;
}
static NTSTATUS query_dword_option( HANDLE hkey, LPCWSTR name, ULONG *value )
{
NTSTATUS status;
UNICODE_STRING str;
ULONG size;
WCHAR buffer[64];
KEY_VALUE_PARTIAL_INFORMATION *info = (KEY_VALUE_PARTIAL_INFORMATION *)buffer;
RtlInitUnicodeString( &str, name );
size = sizeof(buffer) - sizeof(WCHAR);
if ((status = NtQueryValueKey( hkey, &str, KeyValuePartialInformation, buffer, size, &size )))
return status;
if (info->Type != REG_DWORD)
{
buffer[size / sizeof(WCHAR)] = 0;
*value = wcstoul( (WCHAR *)info->Data, 0, 16 );
}
else memcpy( value, info->Data, sizeof(*value) );
return status;
}
static NTSTATUS query_string_option( HANDLE hkey, LPCWSTR name, ULONG type,
void *data, ULONG in_size, ULONG *out_size )
{
NTSTATUS status;
UNICODE_STRING str;
ULONG size;
char *buffer;
KEY_VALUE_PARTIAL_INFORMATION *info;
static const int info_size = FIELD_OFFSET( KEY_VALUE_PARTIAL_INFORMATION, Data );
RtlInitUnicodeString( &str, name );
size = info_size + in_size;
if (!(buffer = RtlAllocateHeap( GetProcessHeap(), 0, size ))) return STATUS_NO_MEMORY;
info = (KEY_VALUE_PARTIAL_INFORMATION *)buffer;
status = NtQueryValueKey( hkey, &str, KeyValuePartialInformation, buffer, size, &size );
if (!status || status == STATUS_BUFFER_OVERFLOW)
{
if (out_size) *out_size = info->DataLength;
if (data && !status) memcpy( data, info->Data, info->DataLength );
}
RtlFreeHeap( GetProcessHeap(), 0, buffer );
return status;
}
/******************************************************************
* LdrQueryImageFileExecutionOptions (NTDLL.@)
*/
NTSTATUS WINAPI LdrQueryImageFileExecutionOptions( const UNICODE_STRING *key, LPCWSTR value, ULONG type,
void *data, ULONG in_size, ULONG *out_size )
{
static const WCHAR optionsW[] = {'M','a','c','h','i','n','e','\\',
'S','o','f','t','w','a','r','e','\\',
'M','i','c','r','o','s','o','f','t','\\',
'W','i','n','d','o','w','s',' ','N','T','\\',
'C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\',
'I','m','a','g','e',' ','F','i','l','e',' ',
'E','x','e','c','u','t','i','o','n',' ','O','p','t','i','o','n','s','\\'};
WCHAR path[MAX_PATH + ARRAY_SIZE( optionsW )];
OBJECT_ATTRIBUTES attr;
UNICODE_STRING name_str;
HANDLE hkey;
NTSTATUS status;
ULONG len;
WCHAR *p;
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.ObjectName = &name_str;
attr.Attributes = OBJ_CASE_INSENSITIVE;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
p = key->Buffer + key->Length / sizeof(WCHAR);
while (p > key->Buffer && p[-1] != '\\') p--;
len = key->Length - (p - key->Buffer) * sizeof(WCHAR);
name_str.Buffer = path;
name_str.Length = sizeof(optionsW) + len;
name_str.MaximumLength = name_str.Length;
memcpy( path, optionsW, sizeof(optionsW) );
memcpy( path + ARRAY_SIZE( optionsW ), p, len );
if ((status = NtOpenKey( &hkey, KEY_QUERY_VALUE, &attr ))) return status;
if (type == REG_DWORD)
{
if (out_size) *out_size = sizeof(ULONG);
if (in_size >= sizeof(ULONG)) status = query_dword_option( hkey, value, data );
else status = STATUS_BUFFER_OVERFLOW;
}
else status = query_string_option( hkey, value, type, data, in_size, out_size );
NtClose( hkey );
return status;
}
/******************************************************************
* RtlDllShutdownInProgress (NTDLL.@)
*/
BOOLEAN WINAPI RtlDllShutdownInProgress(void)
{
return process_detaching;
}
/****************************************************************************
* LdrResolveDelayLoadedAPI (NTDLL.@)
*/
void* WINAPI LdrResolveDelayLoadedAPI( void* base, const IMAGE_DELAYLOAD_DESCRIPTOR* desc,
PDELAYLOAD_FAILURE_DLL_CALLBACK dllhook,
PDELAYLOAD_FAILURE_SYSTEM_ROUTINE syshook,
IMAGE_THUNK_DATA* addr, ULONG flags )
{
IMAGE_THUNK_DATA *pIAT, *pINT;
DELAYLOAD_INFO delayinfo;
UNICODE_STRING mod;
const CHAR* name;
HMODULE *phmod;
NTSTATUS nts;
FARPROC fp;
DWORD id;
TRACE( "(%p, %p, %p, %p, %p, 0x%08x)\n", base, desc, dllhook, syshook, addr, flags );
phmod = get_rva(base, desc->ModuleHandleRVA);
pIAT = get_rva(base, desc->ImportAddressTableRVA);
pINT = get_rva(base, desc->ImportNameTableRVA);
name = get_rva(base, desc->DllNameRVA);
id = addr - pIAT;
if (!*phmod)
{
if (!RtlCreateUnicodeStringFromAsciiz(&mod, name))
{
nts = STATUS_NO_MEMORY;
goto fail;
}
nts = LdrLoadDll(NULL, 0, &mod, phmod);
RtlFreeUnicodeString(&mod);
if (nts) goto fail;
}
if (IMAGE_SNAP_BY_ORDINAL(pINT[id].u1.Ordinal))
nts = LdrGetProcedureAddress(*phmod, NULL, LOWORD(pINT[id].u1.Ordinal), (void**)&fp);
else
{
const IMAGE_IMPORT_BY_NAME* iibn = get_rva(base, pINT[id].u1.AddressOfData);
ANSI_STRING fnc;
RtlInitAnsiString(&fnc, (char*)iibn->Name);
nts = LdrGetProcedureAddress(*phmod, &fnc, 0, (void**)&fp);
}
if (!nts)
{
pIAT[id].u1.Function = (ULONG_PTR)fp;
return fp;
}
fail:
delayinfo.Size = sizeof(delayinfo);
delayinfo.DelayloadDescriptor = desc;
delayinfo.ThunkAddress = addr;
delayinfo.TargetDllName = name;
delayinfo.TargetApiDescriptor.ImportDescribedByName = !IMAGE_SNAP_BY_ORDINAL(pINT[id].u1.Ordinal);
delayinfo.TargetApiDescriptor.Description.Ordinal = LOWORD(pINT[id].u1.Ordinal);
delayinfo.TargetModuleBase = *phmod;
delayinfo.Unused = NULL;
delayinfo.LastError = nts;
if (dllhook)
return dllhook(4, &delayinfo);
if (IMAGE_SNAP_BY_ORDINAL(pINT[id].u1.Ordinal))
{
DWORD_PTR ord = LOWORD(pINT[id].u1.Ordinal);
return syshook(name, (const char *)ord);
}
else
{
const IMAGE_IMPORT_BY_NAME* iibn = get_rva(base, pINT[id].u1.AddressOfData);
return syshook(name, (const char *)iibn->Name);
}
}
/******************************************************************
* LdrShutdownProcess (NTDLL.@)
*
*/
void WINAPI LdrShutdownProcess(void)
{
BOOL detaching = process_detaching;
TRACE("()\n");
process_detaching = TRUE;
if (!detaching)
RtlProcessFlsData( NtCurrentTeb()->FlsSlots, 1 );
process_detach();
}
/******************************************************************
* RtlExitUserProcess (NTDLL.@)
*/
void WINAPI RtlExitUserProcess( DWORD status )
{
RtlEnterCriticalSection( &loader_section );
RtlAcquirePebLock();
NtTerminateProcess( 0, status );
LdrShutdownProcess();
for (;;) NtTerminateProcess( GetCurrentProcess(), status );
}
/******************************************************************
* LdrShutdownThread (NTDLL.@)
*
*/
void WINAPI LdrShutdownThread(void)
{
PLIST_ENTRY mark, entry;
LDR_DATA_TABLE_ENTRY *mod;
WINE_MODREF *wm;
UINT i;
void **pointers;
TRACE("()\n");
/* don't do any detach calls if process is exiting */
if (process_detaching) return;
RtlProcessFlsData( NtCurrentTeb()->FlsSlots, 1 );
RtlEnterCriticalSection( &loader_section );
wm = get_modref( NtCurrentTeb()->Peb->ImageBaseAddress );
mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
for (entry = mark->Blink; entry != mark; entry = entry->Blink)
{
mod = CONTAINING_RECORD(entry, LDR_DATA_TABLE_ENTRY,
InInitializationOrderLinks);
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 );
}
if (wm->ldr.TlsIndex != -1) call_tls_callbacks( wm->ldr.DllBase, DLL_THREAD_DETACH );
RtlAcquirePebLock();
RemoveEntryList( &NtCurrentTeb()->TlsLinks );
if ((pointers = NtCurrentTeb()->ThreadLocalStoragePointer))
{
for (i = 0; i < tls_module_count; i++) RtlFreeHeap( GetProcessHeap(), 0, pointers[i] );
RtlFreeHeap( GetProcessHeap(), 0, pointers );
}
RtlProcessFlsData( NtCurrentTeb()->FlsSlots, 2 );
NtCurrentTeb()->FlsSlots = NULL;
RtlFreeHeap( GetProcessHeap(), 0, NtCurrentTeb()->TlsExpansionSlots );
NtCurrentTeb()->TlsExpansionSlots = NULL;
RtlReleasePebLock();
RtlLeaveCriticalSection( &loader_section );
/* don't call DbgUiGetThreadDebugObject as some apps hook it and terminate if called */
if (NtCurrentTeb()->DbgSsReserved[1]) NtClose( NtCurrentTeb()->DbgSsReserved[1] );
RtlFreeThreadActivationContextStack();
}
/***********************************************************************
* free_modref
*
*/
static void free_modref( WINE_MODREF *wm )
{
RemoveEntryList(&wm->ldr.InLoadOrderLinks);
RemoveEntryList(&wm->ldr.InMemoryOrderLinks);
if (wm->ldr.InInitializationOrderLinks.Flink)
RemoveEntryList(&wm->ldr.InInitializationOrderLinks);
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" );
free_tls_slot( &wm->ldr );
RtlReleaseActivationContext( wm->ldr.ActivationContext );
NtUnmapViewOfSection( NtCurrentProcess(), wm->ldr.DllBase );
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;
LDR_DATA_TABLE_ENTRY *mod;
WINE_MODREF*wm;
mark = &NtCurrentTeb()->Peb->LdrData->InInitializationOrderModuleList;
for (entry = mark->Blink; entry != mark; entry = prev)
{
mod = CONTAINING_RECORD(entry, LDR_DATA_TABLE_ENTRY, InInitializationOrderLinks);
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_DATA_TABLE_ENTRY, InLoadOrderLinks);
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;
module_push_unload_trace( &wm->ldr );
}
}
/******************************************************************
* LdrUnloadDll (NTDLL.@)
*
*
*/
NTSTATUS WINAPI LdrUnloadDll( HMODULE hModule )
{
WINE_MODREF *wm;
NTSTATUS retv = STATUS_SUCCESS;
if (process_detaching) return retv;
TRACE("(%p)\n", hModule);
RtlEnterCriticalSection( &loader_section );
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();
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;
}
/***********************************************************************
* process_breakpoint
*
* Trigger a debug breakpoint if the process is being debugged.
*/
static void process_breakpoint(void)
{
DWORD_PTR port = 0;
NtQueryInformationProcess( GetCurrentProcess(), ProcessDebugPort, &port, sizeof(port), NULL );
if (!port) return;
__TRY
{
DbgBreakPoint();
}
__EXCEPT_ALL
{
/* do nothing */
}
__ENDTRY
}
/***********************************************************************
* load_global_options
*/
static void load_global_options(void)
{
OBJECT_ATTRIBUTES attr;
UNICODE_STRING name_str, val_str;
HANDLE hkey;
ULONG value;
RtlInitUnicodeString( &name_str, L"WINEBOOTSTRAPMODE" );
val_str.MaximumLength = 0;
is_prefix_bootstrap = RtlQueryEnvironmentVariable_U( NULL, &name_str, &val_str ) != STATUS_VARIABLE_NOT_FOUND;
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.ObjectName = &name_str;
attr.Attributes = OBJ_CASE_INSENSITIVE;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
RtlInitUnicodeString( &name_str, L"Machine\\System\\CurrentControlSet\\Control\\Session Manager" );
if (!NtOpenKey( &hkey, KEY_QUERY_VALUE, &attr ))
{
query_dword_option( hkey, L"GlobalFlag", &NtCurrentTeb()->Peb->NtGlobalFlag );
query_dword_option( hkey, L"SafeProcessSearchMode", &path_safe_mode );
query_dword_option( hkey, L"SafeDllSearchMode", &dll_safe_mode );
if (!query_dword_option( hkey, L"CriticalSectionTimeout", &value ))
NtCurrentTeb()->Peb->CriticalSectionTimeout.QuadPart = (ULONGLONG)value * -10000000;
if (!query_dword_option( hkey, L"HeapSegmentReserve", &value ))
NtCurrentTeb()->Peb->HeapSegmentReserve = value;
if (!query_dword_option( hkey, L"HeapSegmentCommit", &value ))
NtCurrentTeb()->Peb->HeapSegmentCommit = value;
if (!query_dword_option( hkey, L"HeapDeCommitTotalFreeThreshold", &value ))
NtCurrentTeb()->Peb->HeapDeCommitTotalFreeThreshold = value;
if (!query_dword_option( hkey, L"HeapDeCommitFreeBlockThreshold", &value ))
NtCurrentTeb()->Peb->HeapDeCommitFreeBlockThreshold = value;
NtClose( hkey );
}
LdrQueryImageFileExecutionOptions( &NtCurrentTeb()->Peb->ProcessParameters->ImagePathName,
L"GlobalFlag", REG_DWORD, &NtCurrentTeb()->Peb->NtGlobalFlag,
sizeof(DWORD), NULL );
heap_set_debug_flags( GetProcessHeap() );
}
#ifndef _WIN64
void *Wow64Transition = NULL;
static void map_wow64cpu(void)
{
SIZE_T size = 0;
OBJECT_ATTRIBUTES attr;
UNICODE_STRING string;
HANDLE file, section;
IO_STATUS_BLOCK io;
NTSTATUS status;
RtlInitUnicodeString( &string, L"\\??\\C:\\windows\\sysnative\\wow64cpu.dll" );
InitializeObjectAttributes( &attr, &string, 0, NULL, NULL );
if ((status = NtOpenFile( &file, GENERIC_READ | SYNCHRONIZE, &attr, &io, FILE_SHARE_READ,
FILE_SYNCHRONOUS_IO_NONALERT | FILE_NON_DIRECTORY_FILE )))
{
WARN("failed to open wow64cpu, status %#x\n", status);
return;
}
if (!NtCreateSection( &section, STANDARD_RIGHTS_REQUIRED | SECTION_QUERY |
SECTION_MAP_READ | SECTION_MAP_EXECUTE,
NULL, NULL, PAGE_EXECUTE_READ, SEC_COMMIT, file ))
{
NtMapViewOfSection( section, NtCurrentProcess(), &Wow64Transition, 0,
0, NULL, &size, ViewShare, 0, PAGE_EXECUTE_READ );
NtClose( section );
}
NtClose( file );
}
static void init_wow64(void)
{
PEB *peb = NtCurrentTeb()->Peb;
PEB64 *peb64;
if (!NtCurrentTeb64()) return;
peb64 = UlongToPtr( NtCurrentTeb64()->Peb );
peb64->ImageBaseAddress = PtrToUlong( peb->ImageBaseAddress );
peb64->OSMajorVersion = peb->OSMajorVersion;
peb64->OSMinorVersion = peb->OSMinorVersion;
peb64->OSBuildNumber = peb->OSBuildNumber;
peb64->OSPlatformId = peb->OSPlatformId;
peb64->SessionId = peb->SessionId;
map_wow64cpu();
}
#endif
/******************************************************************
* LdrInitializeThunk (NTDLL.@)
*
* Attach to all the loaded dlls.
* If this is the first time, perform the full process initialization.
*/
void WINAPI LdrInitializeThunk( CONTEXT *context, ULONG_PTR unknown2, ULONG_PTR unknown3, ULONG_PTR unknown4 )
{
static int attach_done;
int i;
NTSTATUS status;
ULONG_PTR cookie;
WINE_MODREF *wm;
void **entry;
#ifdef __i386__
entry = (void **)&context->Eax;
#elif defined(__x86_64__)
entry = (void **)&context->Rcx;
#elif defined(__arm__)
entry = (void **)&context->R0;
#elif defined(__aarch64__)
entry = (void **)&context->u.s.X0;
#endif
if (process_detaching) NtTerminateThread( GetCurrentThread(), 0 );
RtlEnterCriticalSection( &loader_section );
if (!imports_fixup_done)
{
ANSI_STRING func_name;
WINE_MODREF *kernel32;
PEB *peb = NtCurrentTeb()->Peb;
peb->LdrData = &ldr;
peb->FastPebLock = &peb_lock;
peb->TlsBitmap = &tls_bitmap;
peb->TlsExpansionBitmap = &tls_expansion_bitmap;
peb->LoaderLock = &loader_section;
peb->ProcessHeap = RtlCreateHeap( HEAP_GROWABLE, NULL, 0, 0, NULL, NULL );
RtlInitializeBitMap( &tls_bitmap, peb->TlsBitmapBits, sizeof(peb->TlsBitmapBits) * 8 );
RtlInitializeBitMap( &tls_expansion_bitmap, peb->TlsExpansionBitmapBits,
sizeof(peb->TlsExpansionBitmapBits) * 8 );
RtlSetBits( peb->TlsBitmap, 0, 1 ); /* TLS index 0 is reserved and should be initialized to NULL. */
init_user_process_params();
load_global_options();
version_init();
#ifndef _WIN64
init_wow64();
#endif
wm = build_main_module();
wm->ldr.LoadCount = -1;
build_ntdll_module();
if ((status = load_dll( NULL, L"kernel32.dll", NULL, 0, &kernel32 )) != STATUS_SUCCESS)
{
MESSAGE( "wine: could not load kernel32.dll, status %x\n", status );
NtTerminateProcess( GetCurrentProcess(), status );
}
kernel32_handle = kernel32->ldr.DllBase;
RtlInitAnsiString( &func_name, "BaseThreadInitThunk" );
if ((status = LdrGetProcedureAddress( kernel32_handle, &func_name,
0, (void **)&pBaseThreadInitThunk )) != STATUS_SUCCESS)
{
MESSAGE( "wine: could not find BaseThreadInitThunk in kernel32.dll, status %x\n", status );
NtTerminateProcess( GetCurrentProcess(), status );
}
actctx_init();
if (wm->ldr.Flags & LDR_COR_ILONLY)
status = fixup_imports_ilonly( wm, NULL, entry );
else
status = fixup_imports( wm, NULL );
if (status)
{
ERR( "Importing dlls for %s failed, status %x\n",
debugstr_w(NtCurrentTeb()->Peb->ProcessParameters->ImagePathName.Buffer), status );
NtTerminateProcess( GetCurrentProcess(), status );
}
imports_fixup_done = TRUE;
}
else wm = get_modref( NtCurrentTeb()->Peb->ImageBaseAddress );
RtlAcquirePebLock();
InsertHeadList( &tls_links, &NtCurrentTeb()->TlsLinks );
RtlReleasePebLock();
NtCurrentTeb()->FlsSlots = fls_alloc_data();
if (!attach_done) /* first time around */
{
attach_done = 1;
if ((status = alloc_thread_tls()) != STATUS_SUCCESS)
{
ERR( "TLS init failed when loading %s, status %x\n",
debugstr_w(NtCurrentTeb()->Peb->ProcessParameters->ImagePathName.Buffer), status );
NtTerminateProcess( GetCurrentProcess(), status );
}
wm->ldr.Flags |= LDR_PROCESS_ATTACHED; /* don't try to attach again */
if (wm->ldr.ActivationContext)
RtlActivateActivationContext( 0, wm->ldr.ActivationContext, &cookie );
for (i = 0; i < wm->nDeps; i++)
{
if (!wm->deps[i]) continue;
if ((status = process_attach( wm->deps[i], context )) != STATUS_SUCCESS)
{
if (last_failed_modref)
ERR( "%s failed to initialize, aborting\n",
debugstr_w(last_failed_modref->ldr.BaseDllName.Buffer) + 1 );
ERR( "Initializing dlls for %s failed, status %x\n",
debugstr_w(NtCurrentTeb()->Peb->ProcessParameters->ImagePathName.Buffer), status );
NtTerminateProcess( GetCurrentProcess(), status );
}
}
unix_funcs->virtual_release_address_space();
if (wm->ldr.TlsIndex != -1) call_tls_callbacks( wm->ldr.DllBase, DLL_PROCESS_ATTACH );
if (wm->ldr.Flags & LDR_WINE_INTERNAL) unix_funcs->init_builtin_dll( wm->ldr.DllBase );
if (wm->ldr.ActivationContext) RtlDeactivateActivationContext( 0, cookie );
process_breakpoint();
}
else
{
if ((status = alloc_thread_tls()) != STATUS_SUCCESS)
NtTerminateThread( GetCurrentThread(), status );
thread_attach();
if (wm->ldr.TlsIndex != -1) call_tls_callbacks( wm->ldr.DllBase, DLL_THREAD_ATTACH );
}
RtlLeaveCriticalSection( &loader_section );
signal_start_thread( context );
}
/***********************************************************************
* 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) image = FALSE; /* mapped as data file */
module = (HMODULE)((ULONG_PTR)module & ~3);
if (!(nt = RtlImageNtHeader( module ))) return NULL;
if (nt->OptionalHeader.Magic == IMAGE_NT_OPTIONAL_HDR64_MAGIC)
{
const IMAGE_NT_HEADERS64 *nt64 = (const IMAGE_NT_HEADERS64 *)nt;
if (dir >= nt64->OptionalHeader.NumberOfRvaAndSizes) return NULL;
if (!(addr = nt64->OptionalHeader.DataDirectory[dir].VirtualAddress)) return NULL;
*size = nt64->OptionalHeader.DataDirectory[dir].Size;
if (image || addr < nt64->OptionalHeader.SizeOfHeaders) return (char *)module + addr;
}
else if (nt->OptionalHeader.Magic == IMAGE_NT_OPTIONAL_HDR32_MAGIC)
{
const IMAGE_NT_HEADERS32 *nt32 = (const IMAGE_NT_HEADERS32 *)nt;
if (dir >= nt32->OptionalHeader.NumberOfRvaAndSizes) return NULL;
if (!(addr = nt32->OptionalHeader.DataDirectory[dir].VirtualAddress)) return NULL;
*size = nt32->OptionalHeader.DataDirectory[dir].Size;
if (image || addr < nt32->OptionalHeader.SizeOfHeaders) return (char *)module + addr;
}
else return NULL;
/* 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_DATA_TABLE_ENTRY *module;
PVOID ret = NULL;
RtlEnterCriticalSection( &loader_section );
if (!LdrFindEntryForAddress( pc, &module )) ret = module->DllBase;
RtlLeaveCriticalSection( &loader_section );
*address = ret;
return ret;
}
/****************************************************************************
* LdrGetDllDirectory (NTDLL.@)
*/
NTSTATUS WINAPI LdrGetDllDirectory( UNICODE_STRING *dir )
{
NTSTATUS status = STATUS_SUCCESS;
RtlEnterCriticalSection( &dlldir_section );
dir->Length = dll_directory.Length + sizeof(WCHAR);
if (dir->MaximumLength >= dir->Length) RtlCopyUnicodeString( dir, &dll_directory );
else
{
status = STATUS_BUFFER_TOO_SMALL;
if (dir->MaximumLength) dir->Buffer[0] = 0;
}
RtlLeaveCriticalSection( &dlldir_section );
return status;
}
/****************************************************************************
* LdrSetDllDirectory (NTDLL.@)
*/
NTSTATUS WINAPI LdrSetDllDirectory( const UNICODE_STRING *dir )
{
NTSTATUS status = STATUS_SUCCESS;
UNICODE_STRING new;
if (!dir->Buffer) RtlInitUnicodeString( &new, NULL );
else if ((status = RtlDuplicateUnicodeString( 1, dir, &new ))) return status;
RtlEnterCriticalSection( &dlldir_section );
RtlFreeUnicodeString( &dll_directory );
dll_directory = new;
RtlLeaveCriticalSection( &dlldir_section );
return status;
}
/****************************************************************************
* LdrAddDllDirectory (NTDLL.@)
*/
NTSTATUS WINAPI LdrAddDllDirectory( const UNICODE_STRING *dir, void **cookie )
{
FILE_BASIC_INFORMATION info;
UNICODE_STRING nt_name;
NTSTATUS status;
OBJECT_ATTRIBUTES attr;
DWORD len;
struct dll_dir_entry *ptr;
DOS_PATHNAME_TYPE type = RtlDetermineDosPathNameType_U( dir->Buffer );
if (type != ABSOLUTE_PATH && type != ABSOLUTE_DRIVE_PATH)
return STATUS_INVALID_PARAMETER;
status = RtlDosPathNameToNtPathName_U_WithStatus( dir->Buffer, &nt_name, NULL, NULL );
if (status) return status;
len = nt_name.Length / sizeof(WCHAR);
if (!(ptr = RtlAllocateHeap( GetProcessHeap(), 0, offsetof(struct dll_dir_entry, dir[++len] ))))
return STATUS_NO_MEMORY;
memcpy( ptr->dir, nt_name.Buffer, len * sizeof(WCHAR) );
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.Attributes = OBJ_CASE_INSENSITIVE;
attr.ObjectName = &nt_name;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
status = NtQueryAttributesFile( &attr, &info );
RtlFreeUnicodeString( &nt_name );
if (!status)
{
TRACE( "%s\n", debugstr_w( ptr->dir ));
RtlEnterCriticalSection( &dlldir_section );
list_add_head( &dll_dir_list, &ptr->entry );
RtlLeaveCriticalSection( &dlldir_section );
*cookie = ptr;
}
else RtlFreeHeap( GetProcessHeap(), 0, ptr );
return status;
}
/****************************************************************************
* LdrRemoveDllDirectory (NTDLL.@)
*/
NTSTATUS WINAPI LdrRemoveDllDirectory( void *cookie )
{
struct dll_dir_entry *ptr = cookie;
TRACE( "%s\n", debugstr_w( ptr->dir ));
RtlEnterCriticalSection( &dlldir_section );
list_remove( &ptr->entry );
RtlFreeHeap( GetProcessHeap(), 0, ptr );
RtlLeaveCriticalSection( &dlldir_section );
return STATUS_SUCCESS;
}
/*************************************************************************
* LdrSetDefaultDllDirectories (NTDLL.@)
*/
NTSTATUS WINAPI LdrSetDefaultDllDirectories( ULONG flags )
{
/* LOAD_LIBRARY_SEARCH_DLL_LOAD_DIR doesn't make sense in default dirs */
const ULONG load_library_search_flags = (LOAD_LIBRARY_SEARCH_APPLICATION_DIR |
LOAD_LIBRARY_SEARCH_USER_DIRS |
LOAD_LIBRARY_SEARCH_SYSTEM32 |
LOAD_LIBRARY_SEARCH_DEFAULT_DIRS);
if (!flags || (flags & ~load_library_search_flags)) return STATUS_INVALID_PARAMETER;
default_search_flags = flags;
return STATUS_SUCCESS;
}
/******************************************************************
* LdrGetDllPath (NTDLL.@)
*/
NTSTATUS WINAPI LdrGetDllPath( PCWSTR module, ULONG flags, PWSTR *path, PWSTR *unknown )
{
NTSTATUS status;
const ULONG load_library_search_flags = (LOAD_LIBRARY_SEARCH_DLL_LOAD_DIR |
LOAD_LIBRARY_SEARCH_APPLICATION_DIR |
LOAD_LIBRARY_SEARCH_USER_DIRS |
LOAD_LIBRARY_SEARCH_SYSTEM32 |
LOAD_LIBRARY_SEARCH_DEFAULT_DIRS);
if (flags & LOAD_WITH_ALTERED_SEARCH_PATH)
{
if (flags & load_library_search_flags) return STATUS_INVALID_PARAMETER;
if (default_search_flags) flags |= default_search_flags | LOAD_LIBRARY_SEARCH_DLL_LOAD_DIR;
}
else if (!(flags & load_library_search_flags)) flags |= default_search_flags;
RtlEnterCriticalSection( &dlldir_section );
if (flags & load_library_search_flags)
{
status = get_dll_load_path_search_flags( module, flags, path );
}
else
{
const WCHAR *dlldir = dll_directory.Length ? dll_directory.Buffer : NULL;
if (!(flags & LOAD_WITH_ALTERED_SEARCH_PATH))
module = NtCurrentTeb()->Peb->ProcessParameters->ImagePathName.Buffer;
status = get_dll_load_path( module, dlldir, dll_safe_mode, path );
}
RtlLeaveCriticalSection( &dlldir_section );
*unknown = NULL;
return status;
}
/*************************************************************************
* RtlSetSearchPathMode (NTDLL.@)
*/
NTSTATUS WINAPI RtlSetSearchPathMode( ULONG flags )
{
int val;
switch (flags)
{
case BASE_SEARCH_PATH_ENABLE_SAFE_SEARCHMODE:
val = 1;
break;
case BASE_SEARCH_PATH_DISABLE_SAFE_SEARCHMODE:
val = 0;
break;
case BASE_SEARCH_PATH_ENABLE_SAFE_SEARCHMODE | BASE_SEARCH_PATH_PERMANENT:
InterlockedExchange( (int *)&path_safe_mode, 2 );
return STATUS_SUCCESS;
default:
return STATUS_INVALID_PARAMETER;
}
for (;;)
{
int prev = path_safe_mode;
if (prev == 2) break; /* permanently set */
if (InterlockedCompareExchange( (int *)&path_safe_mode, val, prev ) == prev) return STATUS_SUCCESS;
}
return STATUS_ACCESS_DENIED;
}
/******************************************************************
* RtlGetExePath (NTDLL.@)
*/
NTSTATUS WINAPI RtlGetExePath( PCWSTR name, PWSTR *path )
{
const WCHAR *dlldir = L".";
const WCHAR *module = NtCurrentTeb()->Peb->ProcessParameters->ImagePathName.Buffer;
/* same check as NeedCurrentDirectoryForExePathW */
if (!wcschr( name, '\\' ))
{
UNICODE_STRING name, value = { 0 };
RtlInitUnicodeString( &name, L"NoDefaultCurrentDirectoryInExePath" );
if (RtlQueryEnvironmentVariable_U( NULL, &name, &value ) != STATUS_VARIABLE_NOT_FOUND)
dlldir = L"";
}
return get_dll_load_path( module, dlldir, FALSE, path );
}
/******************************************************************
* RtlGetSearchPath (NTDLL.@)
*/
NTSTATUS WINAPI RtlGetSearchPath( PWSTR *path )
{
const WCHAR *module = NtCurrentTeb()->Peb->ProcessParameters->ImagePathName.Buffer;
return get_dll_load_path( module, NULL, path_safe_mode, path );
}
/******************************************************************
* RtlReleasePath (NTDLL.@)
*/
void WINAPI RtlReleasePath( PWSTR path )
{
RtlFreeHeap( GetProcessHeap(), 0, path );
}
/******************************************************************
* DllMain (NTDLL.@)
*/
BOOL WINAPI DllMain( HINSTANCE inst, DWORD reason, LPVOID reserved )
{
if (reason == DLL_PROCESS_ATTACH) LdrDisableThreadCalloutsForDll( inst );
return TRUE;
}
/***********************************************************************
* __wine_set_unix_funcs
*/
NTSTATUS CDECL __wine_set_unix_funcs( int version, const struct unix_funcs *funcs )
{
if (version != NTDLL_UNIXLIB_VERSION) return STATUS_REVISION_MISMATCH;
unix_funcs = funcs;
return STATUS_SUCCESS;
}
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