fs/smb/client/winucase.c

Source file repositories/reference/linux-study-clean/fs/smb/client/winucase.c

File Facts

System: Linux kernel
Corpus path: fs/smb/client/winucase.c
Extension: .c
Size: 37052 bytes
Lines: 650
Domain: Core OS
Bucket: VFS And Filesystem Core
Inferred role: Core OS: implementation source
Status: source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

linux/nls.h

Detected Declarations

function cifs_toupper

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *
 * Copyright (c) Jeffrey Layton <jlayton@redhat.com>, 2013
 *
 * The const tables in this file were converted from the following info
 * provided by Microsoft:
 *
 * 3.1.5.3 Mapping UTF-16 Strings to Upper Case:
 *
 * https://msdn.microsoft.com/en-us/library/hh877830.aspx
 * http://www.microsoft.com/en-us/download/details.aspx?displaylang=en&id=10921
 *
 * In particular, the table in "Windows 8 Upper Case Mapping Table.txt" was
 * post-processed using the winucase_convert.pl script.
 */

#include <linux/nls.h>

wchar_t cifs_toupper(wchar_t in);  /* quiet sparse */

static const wchar_t t2_00[256] = {
	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
	0x0000, 0x0041, 0x0042, 0x0043, 0x0044, 0x0045, 0x0046, 0x0047,
	0x0048, 0x0049, 0x004a, 0x004b, 0x004c, 0x004d, 0x004e, 0x004f,
	0x0050, 0x0051, 0x0052, 0x0053, 0x0054, 0x0055, 0x0056, 0x0057,
	0x0058, 0x0059, 0x005a, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
	0x00c0, 0x00c1, 0x00c2, 0x00c3, 0x00c4, 0x00c5, 0x00c6, 0x00c7,
	0x00c8, 0x00c9, 0x00ca, 0x00cb, 0x00cc, 0x00cd, 0x00ce, 0x00cf,
	0x00d0, 0x00d1, 0x00d2, 0x00d3, 0x00d4, 0x00d5, 0x00d6, 0x0000,
	0x00d8, 0x00d9, 0x00da, 0x00db, 0x00dc, 0x00dd, 0x00de, 0x0178,
};

static const wchar_t t2_01[256] = {
	0x0000, 0x0100, 0x0000, 0x0102, 0x0000, 0x0104, 0x0000, 0x0106,
	0x0000, 0x0108, 0x0000, 0x010a, 0x0000, 0x010c, 0x0000, 0x010e,
	0x0000, 0x0110, 0x0000, 0x0112, 0x0000, 0x0114, 0x0000, 0x0116,
	0x0000, 0x0118, 0x0000, 0x011a, 0x0000, 0x011c, 0x0000, 0x011e,
	0x0000, 0x0120, 0x0000, 0x0122, 0x0000, 0x0124, 0x0000, 0x0126,
	0x0000, 0x0128, 0x0000, 0x012a, 0x0000, 0x012c, 0x0000, 0x012e,
	0x0000, 0x0000, 0x0000, 0x0132, 0x0000, 0x0134, 0x0000, 0x0136,
	0x0000, 0x0000, 0x0139, 0x0000, 0x013b, 0x0000, 0x013d, 0x0000,
	0x013f, 0x0000, 0x0141, 0x0000, 0x0143, 0x0000, 0x0145, 0x0000,
	0x0147, 0x0000, 0x0000, 0x014a, 0x0000, 0x014c, 0x0000, 0x014e,
	0x0000, 0x0150, 0x0000, 0x0152, 0x0000, 0x0154, 0x0000, 0x0156,
	0x0000, 0x0158, 0x0000, 0x015a, 0x0000, 0x015c, 0x0000, 0x015e,
	0x0000, 0x0160, 0x0000, 0x0162, 0x0000, 0x0164, 0x0000, 0x0166,
	0x0000, 0x0168, 0x0000, 0x016a, 0x0000, 0x016c, 0x0000, 0x016e,
	0x0000, 0x0170, 0x0000, 0x0172, 0x0000, 0x0174, 0x0000, 0x0176,
	0x0000, 0x0000, 0x0179, 0x0000, 0x017b, 0x0000, 0x017d, 0x0000,
	0x0243, 0x0000, 0x0000, 0x0182, 0x0000, 0x0184, 0x0000, 0x0000,
	0x0187, 0x0000, 0x0000, 0x0000, 0x018b, 0x0000, 0x0000, 0x0000,
	0x0000, 0x0000, 0x0191, 0x0000, 0x0000, 0x01f6, 0x0000, 0x0000,
	0x0000, 0x0198, 0x023d, 0x0000, 0x0000, 0x0000, 0x0220, 0x0000,
	0x0000, 0x01a0, 0x0000, 0x01a2, 0x0000, 0x01a4, 0x0000, 0x0000,
	0x01a7, 0x0000, 0x0000, 0x0000, 0x0000, 0x01ac, 0x0000, 0x0000,
	0x01af, 0x0000, 0x0000, 0x0000, 0x01b3, 0x0000, 0x01b5, 0x0000,
	0x0000, 0x01b8, 0x0000, 0x0000, 0x0000, 0x01bc, 0x0000, 0x01f7,
	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x01c4, 0x0000,
	0x0000, 0x01c7, 0x0000, 0x0000, 0x01ca, 0x0000, 0x01cd, 0x0000,
	0x01cf, 0x0000, 0x01d1, 0x0000, 0x01d3, 0x0000, 0x01d5, 0x0000,
	0x01d7, 0x0000, 0x01d9, 0x0000, 0x01db, 0x018e, 0x0000, 0x01de,
	0x0000, 0x01e0, 0x0000, 0x01e2, 0x0000, 0x01e4, 0x0000, 0x01e6,
	0x0000, 0x01e8, 0x0000, 0x01ea, 0x0000, 0x01ec, 0x0000, 0x01ee,
	0x0000, 0x0000, 0x0000, 0x01f1, 0x0000, 0x01f4, 0x0000, 0x0000,
	0x0000, 0x01f8, 0x0000, 0x01fa, 0x0000, 0x01fc, 0x0000, 0x01fe,
};

Annotation

Immediate include surface: `linux/nls.h`.
Detected declarations: `function cifs_toupper`.
Atlas domain: Core OS / VFS And Filesystem Core.
Implementation status: source implementation candidate.

Implementation Notes

This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.