Functions for handling authentication. More...

Collaboration diagram for Authentication:

Classes
struct	asn1_der_iterator

struct	mpz_t

struct	names_blob_prefix_t

struct	rsa_public_key

struct	tds_answer

struct	tds_ntlm_auth

Macros
#define	dump(b) dumpl(b, sizeof(b))

#define	dumpl(b, l) tdsdump_dump_buf(TDS_DBG_INFO1, #b, b, l)

#define	hash_func sha1

#define	HAVE_GMP 1

#define	HAVE_NETTLE 1

#define	mpz_clear(n) gcry_mpi_release((n)->num)

#define	mpz_init(n) do { (n)->num = NULL; } while(0)

#define	mpz_powm(w, n, e, m) gcry_mpi_powm((w)->num, (n)->num, (e)->num, (m)->num);

Typedefs
typedef void	nettle_random_func(void ctx, size_t len, uint8_t out)

typedef struct tds_answer	TDSANSWER

typedef struct tds_ntlm_auth	TDSNTLMAUTH

Enumerations
enum	{ ASN1_SEQUENCE = ASN1_TAG_SEQUENCE }

enum	{ hash_len = 20 }

enum	{ key_size_max = 1024 }

enum	asn1_iterator_result { ASN1_ITERATOR_ERROR , ASN1_ITERATOR_PRIMITIVE , ASN1_ITERATOR_CONSTRUCTED , ASN1_ITERATOR_END }

Functions
static enum asn1_iterator_result	asn1_der_iterator_first (struct asn1_der_iterator der, int size, const void der_buf)

static enum asn1_iterator_result	asn1_der_iterator_next (struct asn1_der_iterator *der)

static void	convert_to_upper (char *buf, size_t len)

static size_t	convert_to_usc2le_string (TDSSOCKET tds, const char s, size_t len, char *out)

static void	fill_names_blob_prefix (names_blob_prefix_t *prefix)

static unsigned char *	make_lm_v2_response (const unsigned char ntlm_v2_hash[16], const unsigned char *client_data, int client_data_len, const unsigned char challenge[8])

static TDSRET	make_ntlm_hash (TDSSOCKET tds, const char passwd, unsigned char ntlm_hash[16])

static TDSRET	make_ntlm_v2_hash (TDSSOCKET tds, const char passwd, unsigned char ntlm_v2_hash[16])

static void	memxor (uint8_t dest, const uint8_t src, size_t len)

static void	mgf_mask (uint8_t dest, size_t dest_len, const uint8_t mask, size_t mask_len)

static void	nettle_mpz_get_str_256 (unsigned length, uint8_t *s, const mpz_t x)

static void	nettle_mpz_set_str_256_u (mpz_t x, unsigned length, const uint8_t *s)

static int	oaep_encrypt (size_t key_size, size_t length, const uint8_t *message, mpz_t m)

static int	rsa_encrypt_oaep (const struct rsa_public_key key, size_t length, const uint8_t message, mpz_t gibberish)

static const BIGNUM *	rsa_get_n (const RSA *rsa)

static void	rsa_public_key_clear (struct rsa_public_key *key)

static int	rsa_public_key_from_der_iterator (struct rsa_public_key key, unsigned key_bits, struct asn1_der_iterator der)

static void	rsa_public_key_init (struct rsa_public_key *key)

static void	sha1 (uint8_t hash, const void data, size_t len)

TDSAUTHENTICATION *	tds5_negotiate_get_auth (TDSSOCKET *tds TDS_UNUSED)

static void *	tds5_rsa_encrypt (const void key, size_t key_len, const void nonce, size_t nonce_len, const char pwd, size_t em_size)

static TDSRET	tds7_send_auth (TDSSOCKET tds, const unsigned char challenge, uint32_t flags, const unsigned char *names_blob, int names_blob_len)

static TDSRET	tds_answer_challenge (TDSSOCKET tds, TDSLOGIN login, const unsigned char challenge, uint32_t flags, const unsigned char names_blob, int names_blob_len, TDSANSWER answer, unsigned char **ntlm_v2_response)
	Crypt a given password using schema required for NTLMv1 or NTLM2 authentication.

static TDSRET	tds_answer_challenge_ntlmv2 (TDSSOCKET tds, TDSLOGIN login, const unsigned char challenge, uint32_t flags, const unsigned char names_blob, int names_blob_len, TDSANSWER answer, unsigned char **ntlm_v2_response)

static void	tds_convert_key (const unsigned char key_56, DES_KEY ks)

static void	tds_encrypt_answer (const unsigned char hash, const unsigned char challenge, unsigned char *answer)

static TDSRET	tds_ntlm_free (TDSCONNECTION conn TDS_UNUSED, TDSAUTHENTICATION tds_auth)

TDSAUTHENTICATION *	tds_ntlm_get_auth (TDSSOCKET *tds)
	Build a NTLMSPP packet to send to server.

static TDSRET	tds_ntlm_handle_next (TDSSOCKET tds, struct tds_authentication auth TDS_UNUSED, size_t len)

static void	unix_to_nt_time (uint64_t nt, struct timeval tv)
	put a 8 byte filetime from a time_t This takes GMT as input

Variables
static const char	label [] = ""

static const unsigned char	ntlm_id [] = "NTLMSSP"

Detailed Description

Functions for handling authentication.

Function Documentation

◆ tds_answer_challenge()

static TDSRET tds_answer_challenge	(	TDSSOCKET *	tds,
		TDSLOGIN *	login,
		const unsigned char *	challenge,
		uint32_t *	flags,
		const unsigned char *	names_blob,
		int	names_blob_len,
		TDSANSWER *	answer,
		unsigned char **	ntlm_v2_response
	)

static

Crypt a given password using schema required for NTLMv1 or NTLM2 authentication.

Parameters

passwd	clear text domain password
challenge	challenge data given by server
flags	NTLM flags from server side
answer	buffer where to store crypted password

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◆ tds_ntlm_get_auth()

TDSAUTHENTICATION * tds_ntlm_get_auth ( TDSSOCKET * tds )

Build a NTLMSPP packet to send to server.

Parameters

tds	A pointer to the TDSSOCKET structure managing a client/server operation.

Returns: authentication info

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Classes

Macros

Typedefs

Enumerations

Functions

Variables

Detailed Description

Function Documentation

◆ tds_answer_challenge()

◆ tds_ntlm_get_auth()