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ntdll: Added manifest lookup in global winsxs directory (based on a patch by Jacek Caban).

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This commit is contained in:
Alexandre Julliard 2007-07-19 18:09:35 +02:00
parent 125e710ff1
commit 214fb6e84e
1 changed files with 142 additions and 0 deletions
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142
dlls/ntdll/actctx.c
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@ -1535,6 +1535,146 @@ static NTSTATUS get_manifest_in_associated_manifest( struct actctx_loader* acl,
return status;
}
static WCHAR *lookup_manifest_file( HANDLE dir, struct assembly_identity *ai )
{
static const WCHAR lookup_fmtW[] =
{'%','s','_','%','s','_','%','s','_','%','u','.','%','u','.','*','.','*','_',
'*', /* FIXME */
'.','m','a','n','i','f','e','s','t',0};
WCHAR *lookup, *ret = NULL;
UNICODE_STRING lookup_us;
IO_STATUS_BLOCK io;
unsigned int data_pos = 0, data_len;
char buffer[8192];
if (!(lookup = RtlAllocateHeap( GetProcessHeap(), 0,
(strlenW(ai->arch) + strlenW(ai->name)
+ strlenW(ai->public_key) + 20) * sizeof(WCHAR)
+ sizeof(lookup_fmtW) )))
return NULL;
sprintfW( lookup, lookup_fmtW, ai->arch, ai->name, ai->public_key, ai->version.major, ai->version.minor);
RtlInitUnicodeString( &lookup_us, lookup );
NtQueryDirectoryFile( dir, 0, NULL, NULL, &io, buffer, sizeof(buffer),
FileBothDirectoryInformation, FALSE, &lookup_us, TRUE );
if (io.u.Status == STATUS_SUCCESS)
{
FILE_BOTH_DIR_INFORMATION *dir_info;
WCHAR *tmp;
ULONG build, revision;
data_len = io.Information;
for (;;)
{
if (data_pos >= data_len)
{
NtQueryDirectoryFile( dir, 0, NULL, NULL, &io, buffer, sizeof(buffer),
FileBothDirectoryInformation, FALSE, &lookup_us, FALSE );
if (io.u.Status != STATUS_SUCCESS) break;
data_len = io.Information;
data_pos = 0;
}
dir_info = (FILE_BOTH_DIR_INFORMATION*)(buffer + data_pos);
if (dir_info->NextEntryOffset) data_pos += dir_info->NextEntryOffset;
else data_pos = data_len;
tmp = (WCHAR *)dir_info->FileName + (strchrW(lookup, '*') - lookup);
build = atoiW(tmp);
if (build < ai->version.build) continue;
tmp = strchrW(tmp, '.') + 1;
revision = atoiW(tmp);
if (build == ai->version.build && revision < ai->version.revision)
continue;
ai->version.build = build;
ai->version.revision = revision;
if ((ret = RtlAllocateHeap( GetProcessHeap(), 0, dir_info->FileNameLength + sizeof(WCHAR) )))
{
memcpy( ret, dir_info->FileName, dir_info->FileNameLength );
ret[dir_info->FileNameLength/sizeof(WCHAR)] = 0;
}
break;
}
}
RtlFreeHeap( GetProcessHeap(), 0, lookup );
return ret;
}
static NTSTATUS lookup_winsxs(struct actctx_loader* acl, struct assembly_identity* ai)
{
struct assembly_identity sxs_ai;
UNICODE_STRING path_us;
OBJECT_ATTRIBUTES attr;
IO_STATUS_BLOCK io;
WCHAR *path, *file = NULL;
HANDLE handle;
static const WCHAR manifest_dirW[] =
{'\\','w','i','n','s','x','s','\\','m','a','n','i','f','e','s','t','s',0};
if (!ai->arch || !ai->name || !ai->public_key) return STATUS_NO_SUCH_FILE;
if (!(path = RtlAllocateHeap( GetProcessHeap(), 0, windows_dir.Length + sizeof(manifest_dirW) )))
return STATUS_NO_MEMORY;
memcpy( path, windows_dir.Buffer, windows_dir.Length );
memcpy( path + windows_dir.Length/sizeof(WCHAR), manifest_dirW, sizeof(manifest_dirW) );
if (!RtlDosPathNameToNtPathName_U( path, &path_us, NULL, NULL ))
{
RtlFreeHeap( GetProcessHeap(), 0, path );
return STATUS_NO_SUCH_FILE;
}
RtlFreeHeap( GetProcessHeap(), 0, path );
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.Attributes = OBJ_CASE_INSENSITIVE;
attr.ObjectName = &path_us;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
if (!NtOpenFile( &handle, GENERIC_READ, &attr, &io, FILE_SHARE_READ | FILE_SHARE_WRITE,
FILE_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT ))
{
sxs_ai = *ai;
file = lookup_manifest_file( handle, &sxs_ai );
NtClose( handle );
}
if (!file)
{
RtlFreeUnicodeString( &path_us );
return STATUS_NO_SUCH_FILE;
}
/* append file name to directory path */
if (!(path = RtlReAllocateHeap( GetProcessHeap(), 0, path_us.Buffer,
path_us.Length + (strlenW(file) + 2) * sizeof(WCHAR) )))
{
RtlFreeHeap( GetProcessHeap(), 0, file );
RtlFreeUnicodeString( &path_us );
return STATUS_NO_MEMORY;
}
path[path_us.Length/sizeof(WCHAR)] = '\\';
strcpyW( path + path_us.Length/sizeof(WCHAR) + 1, file );
RtlFreeHeap( GetProcessHeap(), 0, file );
RtlInitUnicodeString( &path_us, path );
if (!open_nt_file( &handle, &path_us ))
{
io.u.Status = get_manifest_in_manifest_file(acl, &sxs_ai, path_us.Buffer, handle);
NtClose( handle );
}
else io.u.Status = STATUS_NO_SUCH_FILE;
RtlFreeUnicodeString( &path_us );
return io.u.Status;
}
static NTSTATUS lookup_assembly(struct actctx_loader* acl,
struct assembly_identity* ai)
{
@ -1545,6 +1685,8 @@ static NTSTATUS lookup_assembly(struct actctx_loader* acl,
UNICODE_STRING nameW;
HANDLE file;
if ((status = lookup_winsxs(acl, ai)) != STATUS_NO_SUCH_FILE) return status;
/* FIXME: add support for language specific lookup */
nameW.Buffer = NULL;