1 /* Copyright (C) 1996-2022 Free Software Foundation, Inc. 2 This file is part of the GNU C Library. 3 4 The GNU C Library is free software; you can redistribute it and/or 5 modify it under the terms of the GNU Lesser General Public 6 License as published by the Free Software Foundation; either 7 version 2.1 of the License, or (at your option) any later version. 8 9 The GNU C Library is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 Lesser General Public License for more details. 13 14 You should have received a copy of the GNU Lesser General Public 15 License along with the GNU C Library; if not, see 16 <https://www.gnu.org/licenses/>. */ 17 18 #ifndef _RPC_AUTH_DES_H 19 #define _RPC_AUTH_DES_H 1 20 21 #include <sys/cdefs.h> 22 #include <rpc/auth.h> 23 24 __BEGIN_DECLS 25 26 /* There are two kinds of "names": fullnames and nicknames */ 27 enum authdes_namekind 28 { 29 ADN_FULLNAME, 30 ADN_NICKNAME 31 }; 32 33 /* A fullname contains the network name of the client, 34 a conversation key and the window */ 35 struct authdes_fullname 36 { 37 char *name; /* network name of client, up to MAXNETNAMELEN */ 38 des_block key; /* conversation key */ 39 uint32_t window; /* associated window */ 40 }; 41 42 /* A credential */ 43 struct authdes_cred 44 { 45 enum authdes_namekind adc_namekind; 46 struct authdes_fullname adc_fullname; 47 uint32_t adc_nickname; 48 }; 49 50 /* A timeval replacement for !32bit platforms */ 51 struct rpc_timeval 52 { 53 uint32_t tv_sec; /* Seconds. */ 54 uint32_t tv_usec; /* Microseconds. */ 55 }; 56 57 /* A des authentication verifier */ 58 struct authdes_verf 59 { 60 union 61 { 62 struct rpc_timeval adv_ctime; /* clear time */ 63 des_block adv_xtime; /* crypt time */ 64 } 65 adv_time_u; 66 uint32_t adv_int_u; 67 }; 68 69 /* des authentication verifier: client variety 70 71 adv_timestamp is the current time. 72 adv_winverf is the credential window + 1. 73 Both are encrypted using the conversation key. */ 74 #define adv_timestamp adv_time_u.adv_ctime 75 #define adv_xtimestamp adv_time_u.adv_xtime 76 #define adv_winverf adv_int_u 77 78 /* des authentication verifier: server variety 79 80 adv_timeverf is the client's timestamp + client's window 81 adv_nickname is the server's nickname for the client. 82 adv_timeverf is encrypted using the conversation key. */ 83 #define adv_timeverf adv_time_u.adv_ctime 84 #define adv_xtimeverf adv_time_u.adv_xtime 85 #define adv_nickname adv_int_u 86 87 /* Map a des credential into a unix cred. */ 88 extern int authdes_getucred (const struct authdes_cred * __adc, 89 uid_t * __uid, gid_t * __gid, 90 short *__grouplen, gid_t * __groups) __THROW; 91 92 /* Get the public key for NAME and place it in KEY. NAME can only be 93 up to MAXNETNAMELEN bytes long and the destination buffer KEY should 94 have HEXKEYBYTES + 1 bytes long to fit all characters from the key. */ 95 extern int getpublickey (const char *__name, char *__key) __THROW; 96 97 /* Get the secret key for NAME and place it in KEY. PASSWD is used to 98 decrypt the encrypted key stored in the database. NAME can only be 99 up to MAXNETNAMELEN bytes long and the destination buffer KEY 100 should have HEXKEYBYTES + 1 bytes long to fit all characters from 101 the key. */ 102 extern int getsecretkey (const char *__name, char *__key, 103 const char *__passwd) __THROW; 104 105 extern int rtime (struct sockaddr_in *__addrp, struct rpc_timeval *__timep, 106 struct rpc_timeval *__timeout) __THROW; 107 108 __END_DECLS 109 110 111 #endif /* rpc/auth_des.h */ 112