LXR linux/include/linux/sunrpc/gss

   1/*
   2 *  linux/include/linux/sunrpc/gss_spkm3.h
   3 *
   4 *  Copyright (c) 2000 The Regents of the University of Michigan.
   5 *  All rights reserved.
   6 *
   7 *  Andy Adamson   <andros@umich.edu>
   8 */
   9
  10#include <linux/sunrpc/auth_gss.h>
  11#include <linux/sunrpc/gss_err.h>
  12#include <linux/sunrpc/gss_asn1.h>
  13
  14struct spkm3_ctx {
  15        struct xdr_netobj       ctx_id;  /* per message context id */
  16        int                     endtime; /* endtime of the context */
  17        struct xdr_netobj       mech_used;
  18        unsigned int            ret_flags ;
  19        struct xdr_netobj       conf_alg;
  20        struct xdr_netobj       derived_conf_key;
  21        struct xdr_netobj       intg_alg;
  22        struct xdr_netobj       derived_integ_key;
  23};
  24
  25/* OIDs declarations for K-ALG, I-ALG, C-ALG, and OWF-ALG */
  26extern const struct xdr_netobj hmac_md5_oid;
  27extern const struct xdr_netobj cast5_cbc_oid;
  28
  29/* SPKM InnerContext Token types */
  30
  31#define SPKM_ERROR_TOK  3
  32#define SPKM_MIC_TOK    4
  33#define SPKM_WRAP_TOK   5
  34#define SPKM_DEL_TOK    6
  35
  36u32 spkm3_make_token(struct spkm3_ctx *ctx, struct xdr_buf * text, struct xdr_netobj * token, int toktype);
  37
  38u32 spkm3_read_token(struct spkm3_ctx *ctx, struct xdr_netobj *read_token, struct xdr_buf *message_buffer, int toktype);
  39
  40#define CKSUMTYPE_RSA_MD5            0x0007
  41#define CKSUMTYPE_HMAC_MD5           0x0008
  42
  43s32 make_spkm3_checksum(s32 cksumtype, struct xdr_netobj *key, char *header,
  44                unsigned int hdrlen, struct xdr_buf *body,
  45                unsigned int body_offset, struct xdr_netobj *cksum);
  46void asn1_bitstring_len(struct xdr_netobj *in, int *enclen, int *zerobits);
  47int decode_asn1_bitstring(struct xdr_netobj *out, char *in, int enclen,
  48                   int explen);
  49void spkm3_mic_header(unsigned char **hdrbuf, unsigned int *hdrlen, 
  50                   unsigned char *ctxhdr, int elen, int zbit);
  51void spkm3_make_mic_token(unsigned  char **tokp, int toklen, 
  52                   struct xdr_netobj *mic_hdr,
  53                   struct xdr_netobj *md5cksum, int md5elen, int md5zbit);
  54u32 spkm3_verify_mic_token(unsigned char **tokp, int *mic_hdrlen, 
  55                   unsigned char **cksum);
  56