mirror of
https://gitlab.winehq.org/wine/wine-staging.git
synced 2024-11-21 16:46:54 -08:00
217 lines
7.1 KiB
Diff
217 lines
7.1 KiB
Diff
From 2849190768a826d888577c820c52a593b660b64e Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Michael=20M=C3=BCller?= <michael@fds-team.de>
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Date: Mon, 3 Apr 2017 05:30:27 +0200
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Subject: [PATCH] ntdll: Implement HashLinks field in LDR module data.
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---
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dlls/kernel32/tests/loader.c | 75 ++++++++++++++++++++++++++++++++++++
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dlls/ntdll/loader.c | 41 ++++++++++++++++++++
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include/winternl.h | 2 +-
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3 files changed, 117 insertions(+), 1 deletion(-)
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diff --git a/dlls/kernel32/tests/loader.c b/dlls/kernel32/tests/loader.c
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index 1db68a191a3..bec46088518 100644
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--- a/dlls/kernel32/tests/loader.c
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+++ b/dlls/kernel32/tests/loader.c
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@@ -30,6 +30,7 @@
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#include "winbase.h"
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#include "winternl.h"
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#include "winnls.h"
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+#include "winuser.h"
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#include "wine/test.h"
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#include "delayloadhandler.h"
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@@ -4031,6 +4032,79 @@ static void test_Wow64Transition(void)
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debugstr_wn(name->SectionFileName.Buffer, name->SectionFileName.Length / sizeof(WCHAR)));
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}
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+static inline WCHAR toupperW(WCHAR c)
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+{
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+ WCHAR tmp = c;
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+ CharUpperBuffW(&tmp, 1);
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+ return tmp;
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+}
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+
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+static ULONG hash_basename(const WCHAR *basename)
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+{
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+ WORD version = MAKEWORD(NtCurrentTeb()->Peb->OSMinorVersion,
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+ NtCurrentTeb()->Peb->OSMajorVersion);
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+ ULONG hash = 0;
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+
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+ if (version >= 0x0602)
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+ {
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+ for (; *basename; basename++)
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+ hash = hash * 65599 + toupperW(*basename);
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+ }
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+ else if (version == 0x0601)
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+ {
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+ for (; *basename; basename++)
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+ hash = hash + 65599 * toupperW(*basename);
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+ }
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+ else
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+ hash = toupperW(basename[0]) - 'A';
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+
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+ return hash & 31;
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+}
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+
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+static void test_HashLinks(void)
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+{
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+ static WCHAR ntdllW[] = {'n','t','d','l','l','.','d','l','l',0};
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+ static WCHAR kernel32W[] = {'k','e','r','n','e','l','3','2','.','d','l','l',0};
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+
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+ LIST_ENTRY *hash_map, *entry, *mark;
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+ LDR_DATA_TABLE_ENTRY *module;
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+ BOOL found;
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+
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+ entry = &NtCurrentTeb()->Peb->LdrData->InLoadOrderModuleList;
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+ entry = entry->Flink;
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+
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+ module = CONTAINING_RECORD(entry, LDR_DATA_TABLE_ENTRY, InLoadOrderLinks);
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+ entry = module->HashLinks.Blink;
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+
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+ hash_map = entry - hash_basename(module->BaseDllName.Buffer);
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+
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+ mark = &hash_map[hash_basename(ntdllW)];
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+ found = FALSE;
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+ for (entry = mark->Flink; entry != mark; entry = entry->Flink)
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+ {
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+ module = CONTAINING_RECORD(entry, LDR_DATA_TABLE_ENTRY, HashLinks);
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+ if (!lstrcmpiW(module->BaseDllName.Buffer, ntdllW))
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+ {
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+ found = TRUE;
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+ break;
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+ }
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+ }
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+ ok(found, "Could not find ntdll\n");
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+
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+ mark = &hash_map[hash_basename(kernel32W)];
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+ found = FALSE;
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+ for (entry = mark->Flink; entry != mark; entry = entry->Flink)
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+ {
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+ module = CONTAINING_RECORD(entry, LDR_DATA_TABLE_ENTRY, HashLinks);
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+ if (!lstrcmpiW(module->BaseDllName.Buffer, kernel32W))
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+ {
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+ found = TRUE;
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+ break;
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+ }
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+ }
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+ ok(found, "Could not find kernel32\n");
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+}
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+
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START_TEST(loader)
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{
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int argc;
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@@ -4103,6 +4177,7 @@ START_TEST(loader)
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test_InMemoryOrderModuleList();
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test_LoadPackagedLibrary();
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test_wow64_redirection();
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+ test_HashLinks();
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test_dll_file( "ntdll.dll" );
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test_dll_file( "kernel32.dll" );
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test_dll_file( "advapi32.dll" );
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diff --git a/dlls/ntdll/loader.c b/dlls/ntdll/loader.c
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index f3a37d4e8a6..eb0f3f8741c 100644
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--- a/dlls/ntdll/loader.c
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+++ b/dlls/ntdll/loader.c
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@@ -124,6 +124,9 @@ struct file_id
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BYTE ObjectId[16];
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};
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+#define HASH_MAP_SIZE 32
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+static LIST_ENTRY hash_table[HASH_MAP_SIZE];
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+
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/* internal representation of loaded modules */
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typedef struct _wine_modref
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{
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@@ -469,6 +472,33 @@ static void call_ldr_notifications( ULONG reason, LDR_DATA_TABLE_ENTRY *module )
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}
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}
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+/*************************************************************************
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+ * hash_basename
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+ *
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+ * Calculates the bucket index of a dll using the basename.
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+ */
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+static ULONG hash_basename(const WCHAR *basename)
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+{
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+ WORD version = MAKEWORD(NtCurrentTeb()->Peb->OSMinorVersion,
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+ NtCurrentTeb()->Peb->OSMajorVersion);
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+ ULONG hash = 0;
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+
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+ if (version >= 0x0602)
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+ {
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+ for (; *basename; basename++)
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+ hash = hash * 65599 + towupper(*basename);
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+ }
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+ else if (version == 0x0601)
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+ {
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+ for (; *basename; basename++)
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+ hash = hash + 65599 * towupper(*basename);
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+ }
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+ else
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+ hash = towupper(basename[0]) - 'A';
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+
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+ return hash & (HASH_MAP_SIZE-1);
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+}
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+
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/*************************************************************************
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* get_modref
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*
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@@ -1245,7 +1275,12 @@ static WINE_MODREF *alloc_module( HMODULE hModule, const UNICODE_STRING *nt_name
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&wm->ldr.InLoadOrderLinks);
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InsertTailList(&NtCurrentTeb()->Peb->LdrData->InMemoryOrderModuleList,
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&wm->ldr.InMemoryOrderLinks);
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+ InsertTailList(&hash_table[hash_basename(wm->ldr.BaseDllName.Buffer)],
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+ &wm->ldr.HashLinks);
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+
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/* wait until init is called for inserting into InInitializationOrderModuleList */
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+ wm->ldr.InInitializationOrderLinks.Flink = NULL;
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+ wm->ldr.InInitializationOrderLinks.Blink = NULL;
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if (!(nt->OptionalHeader.DllCharacteristics & IMAGE_DLLCHARACTERISTICS_NX_COMPAT))
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{
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@@ -1925,6 +1960,7 @@ static NTSTATUS build_module( LPCWSTR load_path, const UNICODE_STRING *nt_name,
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/* the module has only be inserted in the load & memory order lists */
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RemoveEntryList(&wm->ldr.InLoadOrderLinks);
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RemoveEntryList(&wm->ldr.InMemoryOrderLinks);
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+ RemoveEntryList(&wm->ldr.HashLinks);
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/* FIXME: there are several more dangling references
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* left. Including dlls loaded by this dll before the
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@@ -3427,6 +3463,7 @@ static void free_modref( WINE_MODREF *wm )
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{
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RemoveEntryList(&wm->ldr.InLoadOrderLinks);
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RemoveEntryList(&wm->ldr.InMemoryOrderLinks);
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+ RemoveEntryList(&wm->ldr.HashLinks);
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if (wm->ldr.InInitializationOrderLinks.Flink)
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RemoveEntryList(&wm->ldr.InInitializationOrderLinks);
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@@ -3751,6 +3788,10 @@ void WINAPI LdrInitializeThunk( CONTEXT *context, ULONG_PTR unknown2, ULONG_PTR
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sizeof(peb->TlsExpansionBitmapBits) * 8 );
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RtlSetBits( peb->TlsBitmap, 0, 1 ); /* TLS index 0 is reserved and should be initialized to NULL. */
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+ /* initialize hash table */
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+ for (i = 0; i < HASH_MAP_SIZE; i++)
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+ InitializeListHead( &hash_table[i] );
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+
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init_user_process_params();
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load_global_options();
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version_init();
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diff --git a/include/winternl.h b/include/winternl.h
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index 7221c0632b0..b8227b4583f 100644
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--- a/include/winternl.h
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+++ b/include/winternl.h
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@@ -3310,8 +3310,8 @@ typedef struct _LDR_DATA_TABLE_ENTRY
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ULONG Flags;
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SHORT LoadCount;
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SHORT TlsIndex;
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- HANDLE SectionHandle;
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ULONG CheckSum;
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+ LIST_ENTRY HashLinks;
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ULONG TimeDateStamp;
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HANDLE ActivationContext;
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void* Lock;
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--
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2.30.2
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