ssl_util.c File Reference

#include "syshead.h"
#include "ssl_util.h"

Include dependency graph for ssl_util.c:

Go to the source code of this file.

Functions
char *	extract_var_peer_info (const char *peer_info, const char *var, struct gc_arena *gc)
	Extracts a variable from peer info, the returned string will be allocated using the supplied gc_arena.
unsigned int	extract_iv_proto (const char *peer_info)
	Extracts the IV_PROTO variable and returns its value or 0 if it cannot be extracted.
const char *	options_string_compat_lzo (const char *options, struct gc_arena *gc)
	Takes a locally produced OCC string for TLS server mode and modifies as if the option comp-lzo was enabled.
const tls_cipher_name_pair *	tls_get_cipher_name_pair (const char *cipher_name, size_t len)
int	get_num_elements (const char *string, char delimiter)
	Returns the occurrences of 'delimiter' in a string +1 This is typically used to find out the number elements in a cipher string or similar that is separated by : like.

Variables
static const tls_cipher_name_pair	tls_cipher_name_translation_table []
	SSL/TLS Cipher suite name translation table.

Function Documentation

extract_iv_proto()

unsigned int extract_iv_proto

(

const char *

peer_info

)

Extracts the IV_PROTO variable and returns its value or 0 if it cannot be extracted.

Parameters

peer_info

peer info string to search for IV_PROTO

Definition at line 62 of file ssl_util.c.

Referenced by multi_client_set_protocol_options(), p2p_ncp_set_options(), and send_auth_pending_messages().

extract_var_peer_info()

char * extract_var_peer_info	(	const char *	peer_info,
		const char *	var,
		struct gc_arena *	gc
	)

Extracts a variable from peer info, the returned string will be allocated using the supplied gc_arena.

Parameters

peer_info	The peer's peer_info
var	The variable including =, e.g. IV_CIPHERS=

Returns

The content of the variable as NULL terminated string or NULL if the variable cannot be found.

Definition at line 32 of file ssl_util.c.

References gc, and string_alloc().

Referenced by check_auth_pending_method(), get_p2p_ncp_cipher(), prepare_push_reply(), and tls_peer_ncp_list().

get_num_elements()

int get_num_elements	(	const char *	string,
		char	delimiter
	)

Returns the occurrences of 'delimiter' in a string +1 This is typically used to find out the number elements in a cipher string or similar that is separated by : like.

X25519:secp256r1:X448:secp512r1:secp384r1:brainpoolP384r1

Parameters

string	the string to work on
delimiter	the delimiter to count, typically ':'

Returns

occrrences of delimiter + 1

Definition at line 284 of file ssl_util.c.

References ASSERT, and buffer::len.

Referenced by tls_ctx_set_tls_groups().

options_string_compat_lzo()

const char * options_string_compat_lzo	(	const char *	options,
		struct gc_arena *	gc
	)

Takes a locally produced OCC string for TLS server mode and modifies as if the option comp-lzo was enabled.

This is to send a client in comp-lzo migrate mode the expected OCC string.

Note: This function expects the string to be in the locally generated format and does not accept arbitrary strings.

Parameters

options	the locally generated OCC string
gc	gc_arena to allocate the returned string in

Returns

the modified string or options on error

Definition at line 78 of file ssl_util.c.

References alloc_buf_gc(), BSTR, buf_printf(), buf_write(), gc, and buffer::len.

Referenced by key_method_2_read(), and test_compat_lzo_string().

tls_get_cipher_name_pair()

const tls_cipher_name_pair * tls_get_cipher_name_pair	(	const char *	cipher_name,
		size_t	len
	)

Definition at line 265 of file ssl_util.c.

References buffer::len, and tls_cipher_name_translation_table.

Referenced by convert_tls_list_to_openssl(), and show_available_tls_ciphers_list().

Variable Documentation

tls_cipher_name_translation_table

const tls_cipher_name_pair tls_cipher_name_translation_table[]

static

SSL/TLS Cipher suite name translation table.

Definition at line 121 of file ssl_util.c.

Referenced by tls_get_cipher_name_pair().