include/linux/sunrpc/gss_spkm3.h

   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
  14 struct spkm3_ctx {
  15         struct xdr_netobj       ctx_id; /* per message context id */
  16         int                     qop;         /* negotiated qop */
  17         struct xdr_netobj       mech_used;
  18         unsigned int            ret_flags ;
  19         unsigned int            req_flags ;
  20         struct xdr_netobj       share_key;
  21         int                     conf_alg;
  22         struct crypto_tfm*      derived_conf_key;
  23         int                     intg_alg;
  24         struct crypto_tfm*      derived_integ_key;
  25         int                     keyestb_alg;   /* alg used to get share_key */
  26         int                     owf_alg;   /* one way function */
  27 };
  28
  29 /* from openssl/objects.h */
  30 /* XXX need SEAL_ALG_NONE */
  31 #define NID_md5         4
  32 #define NID_dhKeyAgreement      28
  33 #define NID_des_cbc             31
  34 #define NID_sha1                64
  35 #define NID_cast5_cbc           108
  36
  37 /* SPKM InnerContext Token types */
  38
  39 #define SPKM_ERROR_TOK  3
  40 #define SPKM_MIC_TOK    4
  41 #define SPKM_WRAP_TOK   5
  42 #define SPKM_DEL_TOK    6
  43
  44 u32 spkm3_make_token(struct spkm3_ctx *ctx, int qop_req, struct xdr_buf * text, struct xdr_netobj * token, int toktype);
  45
  46 u32 spkm3_read_token(struct spkm3_ctx *ctx, struct xdr_netobj *read_token, struct xdr_buf *message_buffer, int *qop_state, int toktype);
  47
  48 #define CKSUMTYPE_RSA_MD5            0x0007
  49
  50 s32 make_checksum(s32 cksumtype, char *header, int hdrlen, struct xdr_buf *body,
  51                    struct xdr_netobj *cksum);
  52 void asn1_bitstring_len(struct xdr_netobj *in, int *enclen, int *zerobits);
  53 int decode_asn1_bitstring(struct xdr_netobj *out, char *in, int enclen,
  54                    int explen);
  55 void spkm3_mic_header(unsigned char **hdrbuf, unsigned int *hdrlen,
  56                    unsigned char *ctxhdr, int elen, int zbit);
  57 void spkm3_make_mic_token(unsigned  char **tokp, int toklen,
  58                    struct xdr_netobj *mic_hdr,
  59                    struct xdr_netobj *md5cksum, int md5elen, int md5zbit);
  60 u32 spkm3_verify_mic_token(unsigned char **tokp, int *mic_hdrlen,
  61                    unsigned char **cksum);