#include "suricata-common.h"

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Macros
#define	ASCII_BLOCK 3

#define	B64_BLOCK 4

Enumerations
enum	Base64Mode { BASE64_MODE_RELAX, BASE64_MODE_RFC2045, BASE64_MODE_STRICT, BASE64_MODE_RFC4648 }

enum	Base64Ecode { BASE64_ECODE_ERR = -1, BASE64_ECODE_OK = 0, BASE64_ECODE_BUF }

Functions
Base64Ecode	DecodeBase64 (uint8_t dest, uint32_t dest_size, const uint8_t src, uint32_t len, uint32_t consumed_bytes, uint32_t decoded_bytes, Base64Mode mode)
	Decodes a base64-encoded string buffer into an ascii-encoded byte buffer. More...

bool	IsBase64Alphabet (uint8_t encoded_byte)
	Checks if the given char in a byte array is Base64 alphabet. More...

void	Base64RegisterTests (void)

Detailed Description

Author: David Abarbanel david.nosp@m..aba.nosp@m.rbane.nosp@m.l@ba.nosp@m.esyst.nosp@m.ems..nosp@m.com

Definition in file util-base64.h.

Macro Definition Documentation

◆ ASCII_BLOCK

#define ASCII_BLOCK 3

Definition at line 32 of file util-base64.h.

◆ B64_BLOCK

#define B64_BLOCK 4

Definition at line 33 of file util-base64.h.

Enumeration Type Documentation

◆ Base64Ecode

enum Base64Ecode

Enumerator
BASE64_ECODE_ERR
BASE64_ECODE_OK
BASE64_ECODE_BUF

Definition at line 72 of file util-base64.h.

◆ Base64Mode

enum Base64Mode

Enumerator
BASE64_MODE_RELAX
BASE64_MODE_RFC2045
BASE64_MODE_STRICT
BASE64_MODE_RFC4648

Definition at line 34 of file util-base64.h.

Function Documentation

◆ Base64RegisterTests()

void Base64RegisterTests ( void )

Definition at line 404 of file util-base64.c.

References UtRegisterTest().

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◆ DecodeBase64()

Base64Ecode DecodeBase64	(	uint8_t *	dest,
		uint32_t	dest_size,
		const uint8_t *	src,
		uint32_t	len,
		uint32_t *	consumed_bytes,
		uint32_t *	decoded_bytes,
		Base64Mode	mode
	)

Decodes a base64-encoded string buffer into an ascii-encoded byte buffer.

Parameters

dest	The destination byte buffer
dest_size	The destination byte buffer size
src	The source string
len	The length of the source string
consumed_bytes	The bytes that were actually processed/consumed
decoded_bytes	The bytes that were decoded
mode	The mode in which decoding should happen

Returns: Error code indicating success or failures with parsing

Definition at line 109 of file util-base64.c.

References B64_BLOCK, BASE64_ECODE_OK, len, and padding.

Referenced by DetectBase64DecodeDoMatch().

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◆ IsBase64Alphabet()

bool IsBase64Alphabet ( uint8_t encoded_byte )

Checks if the given char in a byte array is Base64 alphabet.