1 /* @(#)auth.h 2.3 88/08/07 4.0 RPCSRC; from 1.17 88/02/08 SMI */ 2 /* 3 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for 4 * unrestricted use provided that this legend is included on all tape 5 * media and as a part of the software program in whole or part. Users 6 * may copy or modify Sun RPC without charge, but are not authorized 7 * to license or distribute it to anyone else except as part of a product or 8 * program developed by the user. 9 * 10 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE 11 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR 12 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. 13 * 14 * Sun RPC is provided with no support and without any obligation on the 15 * part of Sun Microsystems, Inc. to assist in its use, correction, 16 * modification or enhancement. 17 * 18 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE 19 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC 20 * OR ANY PART THEREOF. 21 * 22 * In no event will Sun Microsystems, Inc. be liable for any lost revenue 23 * or profits or other special, indirect and consequential damages, even if 24 * Sun has been advised of the possibility of such damages. 25 * 26 * Sun Microsystems, Inc. 27 * 2550 Garcia Avenue 28 * Mountain View, California 94043 29 */ 30 31 /* 32 * auth.h, Authentication interface. 33 * 34 * Copyright (C) 1984, Sun Microsystems, Inc. 35 * 36 * The data structures are completely opaque to the client. The client 37 * is required to pass a AUTH * to routines that create rpc 38 * "sessions". 39 */ 40 41 #ifndef _RPC_AUTH_H 42 43 #define _RPC_AUTH_H 1 44 #include <features.h> 45 #include <rpc/xdr.h> 46 47 __BEGIN_DECLS 48 49 #define MAX_AUTH_BYTES 400 50 #define MAXNETNAMELEN 255 /* maximum length of network user's name */ 51 52 /* 53 * Status returned from authentication check 54 */ 55 enum auth_stat { 56 AUTH_OK=0, 57 /* 58 * failed at remote end 59 */ 60 AUTH_BADCRED=1, /* bogus credentials (seal broken) */ 61 AUTH_REJECTEDCRED=2, /* client should begin new session */ 62 AUTH_BADVERF=3, /* bogus verifier (seal broken) */ 63 AUTH_REJECTEDVERF=4, /* verifier expired or was replayed */ 64 AUTH_TOOWEAK=5, /* rejected due to security reasons */ 65 /* 66 * failed locally 67 */ 68 AUTH_INVALIDRESP=6, /* bogus response verifier */ 69 AUTH_FAILED=7 /* some unknown reason */ 70 }; 71 72 union des_block { 73 struct { 74 u_int32_t high; 75 u_int32_t low; 76 } key; 77 char c[8]; 78 }; 79 typedef union des_block des_block; 80 extern bool_t xdr_des_block (XDR *__xdrs, des_block *__blkp) __THROW; 81 82 /* 83 * Authentication info. Opaque to client. 84 */ 85 struct opaque_auth { 86 enum_t oa_flavor; /* flavor of auth */ 87 caddr_t oa_base; /* address of more auth stuff */ 88 u_int oa_length; /* not to exceed MAX_AUTH_BYTES */ 89 }; 90 91 /* 92 * Auth handle, interface to client side authenticators. 93 */ 94 typedef struct AUTH AUTH; 95 struct AUTH { 96 struct opaque_auth ah_cred; 97 struct opaque_auth ah_verf; 98 union des_block ah_key; 99 /* not sure whether non-const-ness is a part of the spec... if it is, 100 * enclose "const" in #ifdef _LIBC / #endif 101 * to make it effective only for libc compile */ 102 const 103 struct auth_ops { 104 void (*ah_nextverf) (AUTH *); 105 int (*ah_marshal) (AUTH *, XDR *); /* nextverf & serialize */ 106 int (*ah_validate) (AUTH *, struct opaque_auth *); 107 /* validate verifier */ 108 int (*ah_refresh) (AUTH *); /* refresh credentials */ 109 void (*ah_destroy) (AUTH *); /* destroy this structure */ 110 } *ah_ops; 111 caddr_t ah_private; 112 }; 113 114 115 /* 116 * Authentication ops. 117 * The ops and the auth handle provide the interface to the authenticators. 118 * 119 * AUTH *auth; 120 * XDR *xdrs; 121 * struct opaque_auth verf; 122 */ 123 #define AUTH_NEXTVERF(auth) \ 124 ((*((auth)->ah_ops->ah_nextverf))(auth)) 125 #define auth_nextverf(auth) \ 126 ((*((auth)->ah_ops->ah_nextverf))(auth)) 127 128 #define AUTH_MARSHALL(auth, xdrs) \ 129 ((*((auth)->ah_ops->ah_marshal))(auth, xdrs)) 130 #define auth_marshall(auth, xdrs) \ 131 ((*((auth)->ah_ops->ah_marshal))(auth, xdrs)) 132 133 #define AUTH_VALIDATE(auth, verfp) \ 134 ((*((auth)->ah_ops->ah_validate))((auth), verfp)) 135 #define auth_validate(auth, verfp) \ 136 ((*((auth)->ah_ops->ah_validate))((auth), verfp)) 137 138 #define AUTH_REFRESH(auth) \ 139 ((*((auth)->ah_ops->ah_refresh))(auth)) 140 #define auth_refresh(auth) \ 141 ((*((auth)->ah_ops->ah_refresh))(auth)) 142 143 #define AUTH_DESTROY(auth) \ 144 ((*((auth)->ah_ops->ah_destroy))(auth)) 145 #define auth_destroy(auth) \ 146 ((*((auth)->ah_ops->ah_destroy))(auth)) 147 148 149 extern struct opaque_auth _null_auth; 150 151 152 /* 153 * These are the various implementations of client side authenticators. 154 */ 155 156 /* 157 * Unix style authentication 158 * AUTH *authunix_create(machname, uid, gid, len, aup_gids) 159 * char *machname; 160 * int uid; 161 * int gid; 162 * int len; 163 * int *aup_gids; 164 */ 165 extern AUTH *authunix_create (char *__machname, __uid_t __uid, __gid_t __gid, 166 int __len, __gid_t *__aup_gids); 167 libc_hidden_proto(authunix_create) 168 extern AUTH *authunix_create_default (void); 169 libc_hidden_proto(authunix_create_default) 170 extern AUTH *authnone_create (void) __THROW; 171 libc_hidden_proto(authnone_create) 172 #if 0 173 extern AUTH *authdes_create (const char *__servername, u_int __window, 174 struct sockaddr *__syncaddr, des_block *__ckey) 175 __THROW; 176 extern AUTH *authdes_pk_create (const char *, netobj *, u_int, 177 struct sockaddr *, des_block *) __THROW; 178 #endif 179 180 181 #define AUTH_NONE 0 /* no authentication */ 182 #define AUTH_NULL 0 /* backward compatibility */ 183 #define AUTH_SYS 1 /* unix style (uid, gids) */ 184 #define AUTH_UNIX AUTH_SYS 185 #define AUTH_SHORT 2 /* short hand unix style */ 186 #define AUTH_DES 3 /* des style (encrypted timestamps) */ 187 #define AUTH_DH AUTH_DES /* Diffie-Hellman (this is DES) */ 188 #define AUTH_KERB 4 /* kerberos style */ 189 190 #if 0 191 /* 192 * Netname manipulating functions 193 * 194 */ 195 extern int getnetname (char *) __THROW; 196 extern int host2netname (char *, const char *, const char *) __THROW; 197 extern int user2netname (char *, const uid_t, const char *) __THROW; 198 extern int netname2user (const char *, uid_t *, gid_t *, int *, gid_t *) 199 __THROW; 200 extern int netname2host (const char *, char *, const int) __THROW; 201 202 /* 203 * 204 * These routines interface to the keyserv daemon 205 * 206 */ 207 extern int key_decryptsession (char *, des_block *); 208 extern int key_decryptsession_pk (char *, netobj *, des_block *); 209 extern int key_encryptsession (char *, des_block *); 210 extern int key_encryptsession_pk (char *, netobj *, des_block *); 211 extern int key_gendes (des_block *); 212 extern int key_setsecret (char *); 213 extern int key_secretkey_is_set (void); 214 extern int key_get_conv (char *, des_block *); 215 #endif 216 217 /* 218 * XDR an opaque authentication struct. 219 */ 220 extern bool_t xdr_opaque_auth (XDR *, struct opaque_auth *) __THROW; 221 libc_hidden_proto(xdr_opaque_auth) 222 223 __END_DECLS 224 225 #endif /* rpc/auth.h */ 226