]> wimlib.net Git - wimlib/blobdiff - src/win32_apply.c
Win32: compile
[wimlib] / src / win32_apply.c
index ac7e37537e5456b0f9a3125df8d27b79c88ca813..c8f65ef0e2db218c4a1ba203c04900497bcee6af 100644 (file)
@@ -182,7 +182,7 @@ win32_extract_stream(const wchar_t *path, const wchar_t *stream_name,
                stream_path = alloca(sizeof(wchar_t) *
                                     (wcslen(path) + 1 +
                                      wcslen(stream_name) + 1));
-               swprintf(stream_path, L"%ls:%ls", path, stream_name);
+               tsprintf(stream_path, L"%ls:%ls", path, stream_name);
        }
 
        h = CreateFile(stream_path, FILE_WRITE_DATA, 0, NULL,
@@ -195,8 +195,7 @@ win32_extract_stream(const wchar_t *path, const wchar_t *stream_name,
        ret = 0;
        if (!lte)
                goto out_close_handle;
-       ret = extract_wim_resource(lte, wim_resource_size(lte),
-                                  win32_extract_wim_chunk, h);
+       ret = extract_stream(lte, lte->size, win32_extract_wim_chunk, h);
 out_close_handle:
        if (!CloseHandle(h))
                goto error;
@@ -239,9 +238,9 @@ win32_encrypted_import_cb(unsigned char *data, void *_import_ctx,
        unsigned long len = *len_p;
        const struct wim_lookup_table_entry *lte = import_ctx->lte;
 
-       len = min(len, wim_resource_size(lte) - import_ctx->offset);
+       len = min(len, lte->size - import_ctx->offset);
 
-       if (read_partial_wim_resource_into_buf(lte, len, import_ctx->offset, data))
+       if (read_partial_wim_stream_into_buf(lte, len, import_ctx->offset, data))
                return ERROR_READ_FAULT;
 
        import_ctx->offset += len;
@@ -250,11 +249,10 @@ win32_encrypted_import_cb(unsigned char *data, void *_import_ctx,
 }
 
 static int
-win32_extract_encrypted_stream(file_spec_t file,
+win32_extract_encrypted_stream(const wchar_t *path,
                               struct wim_lookup_table_entry *lte,
                               struct apply_ctx *ctx)
 {
-       const tchar *path = file.path;
        void *file_ctx;
        DWORD err;
        int ret;
@@ -262,7 +260,7 @@ win32_extract_encrypted_stream(file_spec_t file,
 
        err = OpenEncryptedFileRaw(path, CREATE_FOR_IMPORT, &file_ctx);
        if (err != ERROR_SUCCESS) {
-               errno = win32_error_to_errno(err);
+               set_errno_from_win32_error(err);
                ret = WIMLIB_ERR_OPEN;
                goto out;
        }
@@ -272,7 +270,7 @@ win32_extract_encrypted_stream(file_spec_t file,
        err = WriteEncryptedFileRaw(win32_encrypted_import_cb, &extract_ctx,
                                    file_ctx);
        if (err != ERROR_SUCCESS) {
-               errno = win32_error_to_errno(err);
+               set_errno_from_win32_error(err);
                ret = WIMLIB_ERR_WRITE;
                goto out_close;
        }
@@ -292,10 +290,7 @@ win32_set_special_file_attributes(const wchar_t *path, u32 attributes)
        USHORT compression_format = COMPRESSION_FORMAT_DEFAULT;
        DWORD bytes_returned;
 
-       h = CreateFile(path, GENERIC_READ | GENERIC_WRITE, 0, NULL,
-                      OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS |
-                                     FILE_FLAG_OPEN_REPARSE_POINT,
-                      NULL);
+       h = win32_open_existing_file(path, GENERIC_READ | GENERIC_WRITE);
        if (h == INVALID_HANDLE_VALUE)
                goto error;
 
@@ -342,10 +337,10 @@ win32_set_file_attributes(const wchar_t *path, u32 attributes,
                FILE_ATTRIBUTE_ENCRYPTED;
        u32 actual_attributes;
 
-       /* On FAT filesystems we can't set FILE_ATTRIBUTE_READONLY on the
-        * initial pass (when files are created, but data not extracted);
-        * otherwise the system will refuse access to the file even if the
-        * process has SeRestorePrivilege.  */
+       /* Delay setting FILE_ATTRIBUTE_READONLY on the initial pass (when files
+        * are created, but data not extracted); otherwise the system will
+        * refuse access to the file even if the process has SeRestorePrivilege.
+        */
        if (pass == 0)
                attributes &= ~FILE_ATTRIBUTE_READONLY;
 
@@ -379,10 +374,7 @@ win32_set_file_attributes(const wchar_t *path, u32 attributes,
                DWORD bytes_returned;
                USHORT compression_format = COMPRESSION_FORMAT_NONE;
 
-               h = CreateFile(path, GENERIC_READ | GENERIC_WRITE, 0, NULL,
-                              OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS |
-                                             FILE_FLAG_OPEN_REPARSE_POINT,
-                              NULL);
+               h = win32_open_existing_file(path, GENERIC_READ | GENERIC_WRITE);
                if (h == INVALID_HANDLE_VALUE)
                        goto error;
 
@@ -416,10 +408,7 @@ win32_set_reparse_data(const wchar_t *path, const u8 *rpbuf, u16 rpbuflen,
        DWORD err;
        DWORD bytes_returned;
 
-       h = CreateFile(path, GENERIC_WRITE, 0, NULL,
-                      OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS |
-                                     FILE_FLAG_OPEN_REPARSE_POINT,
-                      NULL);
+       h = win32_open_existing_file(path, GENERIC_WRITE);
        if (h == INVALID_HANDLE_VALUE)
                goto error;
 
@@ -449,10 +438,7 @@ win32_set_short_name(const wchar_t *path, const wchar_t *short_name,
        HANDLE h;
        DWORD err;
 
-       h = CreateFile(path, GENERIC_WRITE | DELETE, 0, NULL,
-                      OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS |
-                                     FILE_FLAG_OPEN_REPARSE_POINT,
-                      NULL);
+       h = win32_open_existing_file(path, GENERIC_WRITE | DELETE);
        if (h == INVALID_HANDLE_VALUE)
                goto error;
 
@@ -478,32 +464,87 @@ error:
        return WIMLIB_ERR_WRITE; /* XXX: need better error code */
 }
 
+static DWORD
+do_win32_set_security_descriptor(HANDLE h, const wchar_t *path,
+                                SECURITY_INFORMATION info,
+                                PSECURITY_DESCRIPTOR desc)
+{
+#ifdef WITH_NTDLL
+       if (func_NtSetSecurityObject) {
+               return (*func_RtlNtStatusToDosError)(
+                               (*func_NtSetSecurityObject)(h, info, desc));
+       }
+#endif
+       if (SetFileSecurity(path, info, desc))
+               return ERROR_SUCCESS;
+       else
+               return GetLastError();
+}
+
 static int
-win32_set_security_descriptor(const wchar_t *path, const u8 *desc, size_t desc_size,
-                             struct apply_ctx *ctx)
+win32_set_security_descriptor(const wchar_t *path, const u8 *desc,
+                             size_t desc_size, struct apply_ctx *ctx)
 {
        SECURITY_INFORMATION info;
+       HANDLE h;
+       DWORD err;
+       int ret;
+
+       info = OWNER_SECURITY_INFORMATION | GROUP_SECURITY_INFORMATION |
+              DACL_SECURITY_INFORMATION  | SACL_SECURITY_INFORMATION;
+       h = INVALID_HANDLE_VALUE;
 
-       info = OWNER_SECURITY_INFORMATION |
-               GROUP_SECURITY_INFORMATION |
-               DACL_SECURITY_INFORMATION  |
-               SACL_SECURITY_INFORMATION;
-retry:
-       if (!SetFileSecurity(path, info, (PSECURITY_DESCRIPTOR)desc)) {
-               if (!(ctx->extract_flags & WIMLIB_EXTRACT_FLAG_STRICT_ACLS) &&
-                   GetLastError() == ERROR_PRIVILEGE_NOT_HELD &&
-                   (info & SACL_SECURITY_INFORMATION))
+#ifdef WITH_NTDLL
+       if (func_NtSetSecurityObject) {
+               h = win32_open_existing_file(path, MAXIMUM_ALLOWED);
+               if (h == INVALID_HANDLE_VALUE) {
+                       ERROR_WITH_ERRNO("Can't open %ls (%u)", path, GetLastError());
+                       goto error;
+               }
+       }
+#endif
+
+       for (;;) {
+               err = do_win32_set_security_descriptor(h, path, info,
+                                                      (PSECURITY_DESCRIPTOR)desc);
+               if (err == ERROR_SUCCESS)
+                       break;
+               if ((err == ERROR_PRIVILEGE_NOT_HELD ||
+                    err == ERROR_ACCESS_DENIED) &&
+                   !(ctx->extract_flags & WIMLIB_EXTRACT_FLAG_STRICT_ACLS))
                {
-                       info &= ~SACL_SECURITY_INFORMATION;
-                       goto retry;
+                       if (info & SACL_SECURITY_INFORMATION) {
+                               info &= ~SACL_SECURITY_INFORMATION;
+                               ctx->partial_security_descriptors++;
+                               continue;
+                       }
+                       if (info & DACL_SECURITY_INFORMATION) {
+                               info &= ~DACL_SECURITY_INFORMATION;
+                               continue;
+                       }
+                       if (info & OWNER_SECURITY_INFORMATION) {
+                               info &= ~OWNER_SECURITY_INFORMATION;
+                               continue;
+                       }
+                       ctx->partial_security_descriptors--;
+                       ctx->no_security_descriptors++;
+                       break;
                }
+               SetLastError(err);
                goto error;
        }
-       return 0;
+       ret = 0;
+out_close:
+#ifdef WITH_NTDLL
+       if (func_NtSetSecurityObject)
+               CloseHandle(h);
+#endif
+       return ret;
 
 error:
        set_errno_from_GetLastError();
-       return WIMLIB_ERR_SET_SECURITY;
+       ret = WIMLIB_ERR_SET_SECURITY;
+       goto out_close;
 }
 
 static int
@@ -520,10 +561,7 @@ win32_set_timestamps(const wchar_t *path, u64 creation_time,
        FILETIME lastWriteTime = {.dwLowDateTime = last_write_time & 0xffffffff,
                                  .dwHighDateTime = last_write_time >> 32};
 
-       h = CreateFile(path, FILE_WRITE_ATTRIBUTES, 0, NULL,
-                      OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS |
-                                     FILE_FLAG_OPEN_REPARSE_POINT,
-                      NULL);
+       h = win32_open_existing_file(path, FILE_WRITE_ATTRIBUTES);
        if (h == INVALID_HANDLE_VALUE)
                goto error;
 
@@ -571,6 +609,8 @@ const struct apply_operations win32_apply_ops = {
        .realpath_works_on_nonexisting_files = 1,
        .root_directory_is_special = 1,
        .requires_final_set_attributes_pass = 1,
+       .extract_encrypted_stream_creates_file = 1,
+       .requires_short_name_reordering = 1, /* TODO: check if this is really needed  */
 };
 
 #endif /* __WIN32__ */