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setupapi: Add support for installing PE builtins as fake dlls.

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Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alexandre Julliard 2019-04-22 11:40:41 +02:00
parent 948fc85186
commit 510e746718
1 changed files with 33 additions and 20 deletions
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53
dlls/setupapi/fakedll.c
View file

@ -51,6 +51,7 @@
WINE_DEFAULT_DEBUG_CHANNEL(setupapi);
static const char builtin_signature[] = "Wine builtin DLL";
static const char fakedll_signature[] = "Wine placeholder DLL";
static const unsigned int file_alignment = 512;
@ -191,14 +192,15 @@ failed:
/* read in the contents of a file into the global file buffer */
/* return 1 on success, 0 on nonexistent file, -1 on other error */
static int read_file( const char *name, void **data, SIZE_T *size )
static int read_file( const char *name, void **data, SIZE_T *size, BOOL expect_builtin )
{
struct stat st;
int fd, ret = -1;
size_t header_size;
IMAGE_DOS_HEADER *dos;
IMAGE_NT_HEADERS *nt;
const size_t min_size = sizeof(*dos) + sizeof(fakedll_signature) +
const char *signature = expect_builtin ? builtin_signature : fakedll_signature;
const size_t min_size = sizeof(*dos) + 32 +
FIELD_OFFSET( IMAGE_NT_HEADERS, OptionalHeader.MajorLinkerVersion );
if ((fd = open( name, O_RDONLY | O_BINARY )) == -1) return 0;
@ -220,8 +222,8 @@ static int read_file( const char *name, void **data, SIZE_T *size )
if (pread( fd, file_buffer, header_size, 0 ) != header_size) goto done;
dos = file_buffer;
if (dos->e_magic != IMAGE_DOS_SIGNATURE) goto done;
if (dos->e_lfanew < sizeof(fakedll_signature)) goto done;
if (memcmp( dos + 1, fakedll_signature, sizeof(fakedll_signature) )) goto done;
if (dos->e_lfanew < strlen(signature) + 1) goto done;
if (memcmp( dos + 1, signature, strlen(signature) + 1 )) goto done;
if (dos->e_lfanew + FIELD_OFFSET(IMAGE_NT_HEADERS,OptionalHeader.MajorLinkerVersion) > header_size)
goto done;
nt = (IMAGE_NT_HEADERS *)((char *)file_buffer + dos->e_lfanew);
@ -354,14 +356,15 @@ static BOOL is_fake_dll( HANDLE h )
{
IMAGE_DOS_HEADER *dos;
DWORD size;
BYTE buffer[sizeof(*dos) + sizeof(fakedll_signature)];
BYTE buffer[sizeof(*dos) + 32];
if (!ReadFile( h, buffer, sizeof(buffer), &size, NULL ) || size != sizeof(buffer))
return FALSE;
dos = (IMAGE_DOS_HEADER *)buffer;
if (dos->e_magic != IMAGE_DOS_SIGNATURE) return FALSE;
if (dos->e_lfanew < size) return FALSE;
return !memcmp( dos + 1, fakedll_signature, sizeof(fakedll_signature) );
return (!memcmp( dos + 1, builtin_signature, sizeof(builtin_signature) ) ||
!memcmp( dos + 1, fakedll_signature, sizeof(fakedll_signature) ));
}
/* create directories leading to a given file */
@ -417,33 +420,39 @@ static void *load_fake_dll( const WCHAR *name, SIZE_T *size )
if (build_dir)
{
strcpy( file + pos + len + 1, ".fake" );
/* try as a dll */
ptr = file + pos;
namelen = len + 1;
file[pos + len + 1] = 0;
if (namelen > 4 && !memcmp( ptr + namelen - 4, ".dll", 4 )) namelen -= 4;
ptr = prepend( ptr, ptr, namelen );
ptr = prepend( ptr, "/dlls", sizeof("/dlls") - 1 );
ptr = prepend( ptr, build_dir, strlen(build_dir) );
if ((res = read_file( ptr, &data, size ))) goto done;
if ((res = read_file( ptr, &data, size, TRUE ))) goto done;
strcpy( file + pos + len + 1, ".fake" );
if ((res = read_file( ptr, &data, size, FALSE ))) goto done;
/* now as a program */
ptr = file + pos;
namelen = len + 1;
file[pos + len + 1] = 0;
if (namelen > 4 && !memcmp( ptr + namelen - 4, ".exe", 4 )) namelen -= 4;
ptr = prepend( ptr, ptr, namelen );
ptr = prepend( ptr, "/programs", sizeof("/programs") - 1 );
ptr = prepend( ptr, build_dir, strlen(build_dir) );
if ((res = read_file( ptr, &data, size ))) goto done;
if ((res = read_file( ptr, &data, size, TRUE ))) goto done;
strcpy( file + pos + len + 1, ".fake" );
if ((res = read_file( ptr, &data, size, FALSE ))) goto done;
}
file[pos + len + 1] = 0;
for (i = 0; (path = wine_dll_enum_load_path( i )); i++)
{
ptr = prepend( file + pos, path, strlen(path) );
if ((res = read_file( ptr, &data, size, TRUE ))) break;
ptr = prepend( file + pos, "/fakedlls", sizeof("/fakedlls") - 1 );
ptr = prepend( ptr, path, strlen(path) );
if ((res = read_file( ptr, &data, size ))) break;
if ((res = read_file( ptr, &data, size, FALSE ))) break;
}
done:
@ -842,7 +851,7 @@ static void register_fake_dll( const WCHAR *name, const void *data, size_t size
}
/* copy a fake dll file to the dest directory */
static void install_fake_dll( WCHAR *dest, char *file, const char *ext )
static int install_fake_dll( WCHAR *dest, char *file, const char *ext, BOOL expect_builtin )
{
int ret;
SIZE_T size;
@ -852,8 +861,8 @@ static void install_fake_dll( WCHAR *dest, char *file, const char *ext )
char *name = strrchr( file, '/' ) + 1;
char *end = name + strlen(name);
if (ext) strcpy( end, ext );
if (!(ret = read_file( file, &data, &size ))) return;
strcpy( end, ext );
if (!(ret = read_file( file, &data, &size, expect_builtin ))) return 0;
if (end > name + 2 && !strncmp( end - 2, "16", 2 )) end -= 2; /* remove "16" suffix */
dll_name_AtoW( destname, name, end - name );
@ -875,10 +884,11 @@ static void install_fake_dll( WCHAR *dest, char *file, const char *ext )
}
}
*destname = 0; /* restore it for next file */
return ret;
}
/* find and install all fake dlls in a given lib directory */
static void install_lib_dir( WCHAR *dest, char *file, const char *default_ext )
static void install_lib_dir( WCHAR *dest, char *file, const char *default_ext, BOOL expect_builtin )
{
DIR *dir;
struct dirent *de;
@ -898,9 +908,10 @@ static void install_lib_dir( WCHAR *dest, char *file, const char *default_ext )
strcat( name, "/" );
strcat( name, de->d_name );
if (!strchr( de->d_name, '.' )) strcat( name, default_ext );
install_fake_dll( dest, file, ".fake" );
if (!install_fake_dll( dest, file, "", expect_builtin ))
install_fake_dll( dest, file, ".fake", FALSE );
}
else install_fake_dll( dest, file, NULL );
else install_fake_dll( dest, file, "", expect_builtin );
}
closedir( dir );
}
@ -931,16 +942,18 @@ static BOOL create_wildcard_dlls( const WCHAR *dirname )
{
strcpy( file, build_dir );
strcat( file, "/dlls" );
install_lib_dir( dest, file, ".dll" );
install_lib_dir( dest, file, ".dll", TRUE );
strcpy( file, build_dir );
strcat( file, "/programs" );
install_lib_dir( dest, file, ".exe" );
install_lib_dir( dest, file, ".exe", TRUE );
}
for (i = 0; (path = wine_dll_enum_load_path( i )); i++)
{
strcpy( file, path );
install_lib_dir( dest, file, NULL, TRUE );
strcpy( file, path );
strcat( file, "/fakedlls" );
install_lib_dir( dest, file, NULL );
install_lib_dir( dest, file, NULL, FALSE );
}
HeapFree( GetProcessHeap(), 0, file );
HeapFree( GetProcessHeap(), 0, dest );