auth.h 6.3 KB

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  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. * auth.h, Authentication interface.
  32. *
  33. * Copyright (C) 1984, Sun Microsystems, Inc.
  34. *
  35. * The data structures are completely opaque to the client. The client
  36. * is required to pass a AUTH * to routines that create rpc
  37. * "sessions".
  38. */
  39. #ifndef _RPC_AUTH_H
  40. #define _RPC_AUTH_H 1
  41. #include <features.h>
  42. #include <rpc/xdr.h>
  43. __BEGIN_DECLS
  44. #define MAX_AUTH_BYTES 400
  45. #define MAXNETNAMELEN 255 /* maximum length of network user's name */
  46. /*
  47. * Status returned from authentication check
  48. */
  49. enum auth_stat {
  50. AUTH_OK=0,
  51. /*
  52. * failed at remote end
  53. */
  54. AUTH_BADCRED=1, /* bogus credentials (seal broken) */
  55. AUTH_REJECTEDCRED=2, /* client should begin new session */
  56. AUTH_BADVERF=3, /* bogus verifier (seal broken) */
  57. AUTH_REJECTEDVERF=4, /* verifier expired or was replayed */
  58. AUTH_TOOWEAK=5, /* rejected due to security reasons */
  59. /*
  60. * failed locally
  61. */
  62. AUTH_INVALIDRESP=6, /* bogus response verifier */
  63. AUTH_FAILED=7 /* some unknown reason */
  64. };
  65. union des_block {
  66. struct {
  67. u_int32_t high;
  68. u_int32_t low;
  69. } key;
  70. char c[8];
  71. };
  72. typedef union des_block des_block;
  73. extern bool_t xdr_des_block (XDR *__xdrs, des_block *__blkp) __THROW;
  74. /*
  75. * Authentication info. Opaque to client.
  76. */
  77. struct opaque_auth {
  78. enum_t oa_flavor; /* flavor of auth */
  79. caddr_t oa_base; /* address of more auth stuff */
  80. u_int oa_length; /* not to exceed MAX_AUTH_BYTES */
  81. };
  82. /*
  83. * Auth handle, interface to client side authenticators.
  84. */
  85. typedef struct AUTH AUTH;
  86. struct AUTH {
  87. struct opaque_auth ah_cred;
  88. struct opaque_auth ah_verf;
  89. union des_block ah_key;
  90. struct auth_ops {
  91. void (*ah_nextverf) (AUTH *);
  92. int (*ah_marshal) (AUTH *, XDR *); /* nextverf & serialize */
  93. int (*ah_validate) (AUTH *, struct opaque_auth *);
  94. /* validate verifier */
  95. int (*ah_refresh) (AUTH *); /* refresh credentials */
  96. void (*ah_destroy) (AUTH *); /* destroy this structure */
  97. } *ah_ops;
  98. caddr_t ah_private;
  99. };
  100. /*
  101. * Authentication ops.
  102. * The ops and the auth handle provide the interface to the authenticators.
  103. *
  104. * AUTH *auth;
  105. * XDR *xdrs;
  106. * struct opaque_auth verf;
  107. */
  108. #define AUTH_NEXTVERF(auth) \
  109. ((*((auth)->ah_ops->ah_nextverf))(auth))
  110. #define auth_nextverf(auth) \
  111. ((*((auth)->ah_ops->ah_nextverf))(auth))
  112. #define AUTH_MARSHALL(auth, xdrs) \
  113. ((*((auth)->ah_ops->ah_marshal))(auth, xdrs))
  114. #define auth_marshall(auth, xdrs) \
  115. ((*((auth)->ah_ops->ah_marshal))(auth, xdrs))
  116. #define AUTH_VALIDATE(auth, verfp) \
  117. ((*((auth)->ah_ops->ah_validate))((auth), verfp))
  118. #define auth_validate(auth, verfp) \
  119. ((*((auth)->ah_ops->ah_validate))((auth), verfp))
  120. #define AUTH_REFRESH(auth) \
  121. ((*((auth)->ah_ops->ah_refresh))(auth))
  122. #define auth_refresh(auth) \
  123. ((*((auth)->ah_ops->ah_refresh))(auth))
  124. #define AUTH_DESTROY(auth) \
  125. ((*((auth)->ah_ops->ah_destroy))(auth))
  126. #define auth_destroy(auth) \
  127. ((*((auth)->ah_ops->ah_destroy))(auth))
  128. extern struct opaque_auth _null_auth;
  129. /*
  130. * These are the various implementations of client side authenticators.
  131. */
  132. /*
  133. * Unix style authentication
  134. * AUTH *authunix_create(machname, uid, gid, len, aup_gids)
  135. * char *machname;
  136. * int uid;
  137. * int gid;
  138. * int len;
  139. * int *aup_gids;
  140. */
  141. extern AUTH *authunix_create (char *__machname, __uid_t __uid, __gid_t __gid,
  142. int __len, __gid_t *__aup_gids) __THROW;
  143. extern AUTH *authunix_create_default (void) __THROW;
  144. extern AUTH *authnone_create (void) __THROW;
  145. extern AUTH *authdes_create (const char *__servername, u_int __window,
  146. struct sockaddr *__syncaddr, des_block *__ckey)
  147. __THROW;
  148. extern AUTH *authdes_pk_create (const char *, netobj *, u_int,
  149. struct sockaddr *, des_block *) __THROW;
  150. #define AUTH_NONE 0 /* no authentication */
  151. #define AUTH_NULL 0 /* backward compatibility */
  152. #define AUTH_SYS 1 /* unix style (uid, gids) */
  153. #define AUTH_UNIX AUTH_SYS
  154. #define AUTH_SHORT 2 /* short hand unix style */
  155. #define AUTH_DES 3 /* des style (encrypted timestamps) */
  156. #define AUTH_DH AUTH_DES /* Diffie-Hellman (this is DES) */
  157. #define AUTH_KERB 4 /* kerberos style */
  158. /*
  159. * Netname manipulating functions
  160. *
  161. */
  162. extern int getnetname (char *) __THROW;
  163. extern int host2netname (char *, __const char *, __const char *) __THROW;
  164. extern int user2netname (char *, __const uid_t, __const char *) __THROW;
  165. extern int netname2user (__const char *, uid_t *, gid_t *, int *, gid_t *)
  166. __THROW;
  167. extern int netname2host (__const char *, char *, __const int) __THROW;
  168. /*
  169. *
  170. * These routines interface to the keyserv daemon
  171. *
  172. */
  173. extern int key_decryptsession (char *, des_block *) __THROW;
  174. extern int key_decryptsession_pk (char *, netobj *, des_block *) __THROW;
  175. extern int key_encryptsession (char *, des_block *) __THROW;
  176. extern int key_encryptsession_pk (char *, netobj *, des_block *) __THROW;
  177. extern int key_gendes (des_block *) __THROW;
  178. extern int key_setsecret (char *) __THROW;
  179. extern int key_secretkey_is_set (void) __THROW;
  180. extern int key_get_conv (char *, des_block *) __THROW;
  181. /*
  182. * XDR an opaque authentication struct.
  183. */
  184. extern bool_t xdr_opaque_auth (XDR *, struct opaque_auth *) __THROW;
  185. __END_DECLS
  186. #endif /* rpc/auth.h */