| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* |
| * Copyright (C) 2026 Namjae Jeon <linkinjeon@kernel.org> |
| */ |
| #ifndef _COMMON_SMB_COMPRESS_H |
| #define _COMMON_SMB_COMPRESS_H |
| |
| #include "../smb2pdu.h" |
| |
| /* |
| * SMB3_COMPRESS_NONE is valid only in chained payload headers. It is never |
| * negotiated as a compression algorithm. |
| */ |
| static __always_inline bool smb_compress_alg_valid(__le16 alg, bool valid_none) |
| { |
| if (alg == SMB3_COMPRESS_NONE) |
| return valid_none; |
| |
| return alg == SMB3_COMPRESS_LZ77 || alg == SMB3_COMPRESS_PATTERN; |
| } |
| |
| int smb_compression_decompress(__le16 alg, bool allow_chained, |
| bool allow_pattern, const void *src, u32 slen, |
| void *dst, u32 dlen); |
| int smb_compression_compress_chained(__le16 alg, bool allow_pattern, |
| const void *src, u32 slen, |
| void *dst, u32 *dlen); |
| |
| #endif /* _COMMON_SMB_COMPRESS_H */ |
