| 1 | // SPDX-License-Identifier: GPL-2.0 |
| 2 | /* |
| 3 | * base64 encoding, lifted from fs/crypto/fname.c. |
| 4 | */ |
| 5 | |
| 6 | #ifndef _LINUX_BASE64_H |
| 7 | #define _LINUX_BASE64_H |
| 8 | |
| 9 | #include <linux/types.h> |
| 10 | |
| 11 | enum base64_variant { |
| 12 | BASE64_STD, /* RFC 4648 (standard) */ |
| 13 | BASE64_URLSAFE, /* RFC 4648 (base64url) */ |
| 14 | BASE64_IMAP, /* RFC 3501 */ |
| 15 | }; |
| 16 | |
| 17 | #define BASE64_CHARS(nbytes) DIV_ROUND_UP((nbytes) * 4, 3) |
| 18 | |
| 19 | int base64_encode(const u8 *src, int len, char *dst, bool padding, enum base64_variant variant); |
| 20 | int base64_decode(const char *src, int len, u8 *dst, bool padding, enum base64_variant variant); |
| 21 | |
| 22 | #endif /* _LINUX_BASE64_H */ |
| 23 | |