/*
* linux/include/linux/sunrpc/gss_spkm3.h
*
* Copyright (c) 2000 The Regents of the University of Michigan.
* All rights reserved.
*
* Andy Adamson <andros@umich.edu>
*/
#include <linux/sunrpc/auth_gss.h>
#include <linux/sunrpc/gss_err.h>
#include <linux/sunrpc/gss_asn1.h>
struct spkm3_ctx {
struct xdr_netobj ctx_id; /* per message context id */
int qop; /* negotiated qop */
struct xdr_netobj mech_used;
unsigned int ret_flags ;
unsigned int req_flags ;
struct xdr_netobj share_key;
int conf_alg;
struct crypto_tfm* derived_conf_key;
int intg_alg;
struct crypto_tfm* derived_integ_key;
int keyestb_alg; /* alg used to get share_key */
int owf_alg; /* one way function */
};
/* from openssl/objects.h */
/* XXX need SEAL_ALG_NONE */
#define NID_md5 4
#define NID_dhKeyAgreement 28
#define NID_des_cbc 31
#define NID_sha1 64
#define NID_cast5_cbc 108
/* SPKM InnerContext Token types */
#define SPKM_ERROR_TOK 3
#define SPKM_MIC_TOK 4
#define SPKM_WRAP_TOK 5
#define SPKM_DEL_TOK 6
u32 spkm3_make_token(struct spkm3_ctx *ctx, int qop_req, struct xdr_buf * text, struct xdr_netobj * token, int toktype);
u32 spkm3_read_token(struct spkm3_ctx *ctx, struct xdr_netobj *read_token, struct xdr_buf *message_buffer, int *qop_state, int toktype);
#define CKSUMTYPE_RSA_MD5 0x0007
s32 make_checksum(s32 cksumtype, char *header, int hdrlen, struct xdr_buf *body,
struct xdr_netobj *cksum);
void asn1_bitstring_len(struct xdr_netobj *in, int *enclen, int *zerobits);
int decode_asn1_bitstring(struct xdr_netobj *out, char *in, int enclen,
int explen);
void spkm3_mic_header(unsigned char **hdrbuf, unsigned int *hdrlen,
unsigned char *ctxhdr, int elen, int zbit);
void spkm3_make_mic_token(unsigned char **tokp, int toklen,
struct xdr_netobj *mic_hdr,
struct xdr_netobj *md5cksum, int md5elen, int md5zbit);
u32 spkm3_verify_mic_token(unsigned char **tokp, int *mic_hdrlen,
unsigned char **cksum);
