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Merge pull request #748 from hreinecke/TP8018
Implement version 1 TLS identities as specified in TP8018
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@@ -15,6 +15,7 @@ sources = [ | |
'nvme/log.c', | ||
'nvme/tree.c', | ||
'nvme/util.c', | ||
'nvme/base64.c' | ||
] | ||
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mi_sources = [ | ||
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@@ -0,0 +1,94 @@ | ||
// SPDX-License-Identifier: GPL-2.0-or-later | ||
/* | ||
* base64.c - RFC4648-compliant base64 encoding | ||
* | ||
* Copyright (c) 2020 SUSE LLC | ||
* | ||
* Author: Hannes Reinecke <[email protected]> | ||
*/ | ||
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#include <stdlib.h> | ||
#include <string.h> | ||
#include <errno.h> | ||
#include <sys/types.h> | ||
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static const char base64_table[65] = | ||
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; | ||
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/** | ||
* base64_encode() - base64-encode some bytes | ||
* @src: the bytes to encode | ||
* @srclen: number of bytes to encode | ||
* @dst: (output) the base64-encoded string. Not NUL-terminated. | ||
* | ||
* Encodes the input string using characters from the set [A-Za-z0-9+,]. | ||
* The encoded string is roughly 4/3 times the size of the input string. | ||
* | ||
* Return: length of the encoded string | ||
*/ | ||
int base64_encode(const unsigned char *src, int srclen, char *dst) | ||
{ | ||
int i, bits = 0; | ||
u_int32_t ac = 0; | ||
char *cp = dst; | ||
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for (i = 0; i < srclen; i++) { | ||
ac = (ac << 8) | src[i]; | ||
bits += 8; | ||
do { | ||
bits -= 6; | ||
*cp++ = base64_table[(ac >> bits) & 0x3f]; | ||
} while (bits >= 6); | ||
} | ||
if (bits) { | ||
*cp++ = base64_table[(ac << (6 - bits)) & 0x3f]; | ||
bits -= 6; | ||
} | ||
while (bits < 0) { | ||
*cp++ = '='; | ||
bits += 2; | ||
} | ||
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return cp - dst; | ||
} | ||
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/** | ||
* base64_decode() - base64-decode some bytes | ||
* @src: the base64-encoded string to decode | ||
* @len: number of bytes to decode | ||
* @dst: (output) the decoded bytes. | ||
* | ||
* Decodes the base64-encoded bytes @src according to RFC 4648. | ||
* | ||
* Return: number of decoded bytes | ||
*/ | ||
int base64_decode(const char *src, int srclen, unsigned char *dst) | ||
{ | ||
u_int32_t ac = 0; | ||
int i, bits = 0; | ||
unsigned char *bp = dst; | ||
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for (i = 0; i < srclen; i++) { | ||
const char *p = strchr(base64_table, src[i]); | ||
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if (src[i] == '=') { | ||
ac = (ac << 6); | ||
bits += 6; | ||
if (bits >= 8) | ||
bits -= 8; | ||
continue; | ||
} | ||
if (!p || !src[i]) | ||
return -EINVAL; | ||
ac = (ac << 6) | (p - base64_table); | ||
bits += 6; | ||
if (bits >= 8) { | ||
bits -= 8; | ||
*bp++ = (unsigned char)(ac >> bits); | ||
} | ||
} | ||
if (ac && ((1 << bits) - 1)) | ||
return -EAGAIN; | ||
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return bp - dst; | ||
} |
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@@ -0,0 +1,8 @@ | ||
/* SPDX-License-Identifier: GPL-2.0-or-later */ | ||
#ifndef _BASE64_H | ||
#define _BASE64_H | ||
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int base64_encode(const unsigned char *src, int len, char *dst); | ||
int base64_decode(const char *src, int len, unsigned char *dst); | ||
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#endif /* _BASE64_H */ |
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