diff options
Diffstat (limited to 'lib/libc/rpc/auth_des.c')
| -rw-r--r-- | lib/libc/rpc/auth_des.c | 554 |
1 files changed, 0 insertions, 554 deletions
diff --git a/lib/libc/rpc/auth_des.c b/lib/libc/rpc/auth_des.c deleted file mode 100644 index 3fd2bfe..0000000 --- a/lib/libc/rpc/auth_des.c +++ /dev/null @@ -1,554 +0,0 @@ -/* - * Sun RPC is a product of Sun Microsystems, Inc. and is provided for - * unrestricted use provided that this legend is included on all tape - * media and as a part of the software program in whole or part. Users - * may copy or modify Sun RPC without charge, but are not authorized - * to license or distribute it to anyone else except as part of a product or - * program developed by the user. - * - * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE - * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR - * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. - * - * Sun RPC is provided with no support and without any obligation on the - * part of Sun Microsystems, Inc. to assist in its use, correction, - * modification or enhancement. - * - * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE - * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC - * OR ANY PART THEREOF. - * - * In no event will Sun Microsystems, Inc. be liable for any lost revenue - * or profits or other special, indirect and consequential damages, even if - * Sun has been advised of the possibility of such damages. - * - * Sun Microsystems, Inc. - * 2550 Garcia Avenue - * Mountain View, California 94043 - */ -/* - * Copyright (c) 1988 by Sun Microsystems, Inc. - */ -/* - * auth_des.c, client-side implementation of DES authentication - */ -#include <string.h> -#include <stdlib.h> -#include <unistd.h> -#include <sys/cdefs.h> -#include <rpc/des_crypt.h> -#include <rpc/types.h> -#include <rpc/xdr.h> -#include <rpc/auth.h> -#include <rpc/auth_des.h> -#include <netinet/in.h> /* XXX: just to get htonl() and ntohl() */ -#include <sys/socket.h> -#undef NIS -#include <rpcsvc/nis.h> - -#if defined(LIBC_SCCS) && !defined(lint) -/* from: static char sccsid[] = "@(#)auth_des.c 2.2 88/07/29 4.0 RPCSRC; from 1.9 88/02/08 SMI"; */ -static const char rcsid[] = "$Id$"; -#endif - -extern bool_t __rpc_get_time_offset __P(( struct timeval *, nis_server *, - char *, char **, struct sockaddr_in * )); -extern int rtime __P(( struct sockaddr_in *, struct timeval *, struct timeval *)); -extern bool_t xdr_authdes_cred __P(( XDR *, struct authdes_cred * )); -extern bool_t xdr_authdes_verf __P(( XDR *, struct authdes_verf * )); - -#define MILLION 1000000L -#define RTIME_TIMEOUT 5 /* seconds to wait for sync */ - -#define AUTH_PRIVATE(auth) (struct ad_private *) auth->ah_private -#define ALLOC(object_type) (object_type *) mem_alloc(sizeof(object_type)) -#define FREE(ptr, size) mem_free((char *)(ptr), (int) size) -#define ATTEMPT(xdr_op) if (!(xdr_op)) return (FALSE) - -#define debug(msg) /*printf("%s\n", msg) */ - -/* - * DES authenticator operations vector - */ -static void authdes_nextverf(); -static bool_t authdes_marshal(); -static bool_t authdes_validate(); -static bool_t authdes_refresh(); -static void authdes_destroy(); -static struct auth_ops authdes_ops = { - authdes_nextverf, - authdes_marshal, - authdes_validate, - authdes_refresh, - authdes_destroy -}; -#ifdef foo -static bool_t synchronize __P(( struct sockaddr *, struct timeval *)); -#endif -/* - * This struct is pointed to by the ah_private field of an "AUTH *" - */ -struct ad_private { - char *ad_fullname; /* client's full name */ - u_int ad_fullnamelen; /* length of name, rounded up */ - char *ad_servername; /* server's full name */ - u_int ad_servernamelen; /* length of name, rounded up */ - u_int ad_window; /* client specified window */ - bool_t ad_dosync; /* synchronize? */ - struct sockaddr ad_syncaddr; /* remote host to synch with */ - char *ad_timehost; /* remote host to synch with */ - struct timeval ad_timediff; /* server's time - client's time */ - u_long ad_nickname; /* server's nickname for client */ - struct authdes_cred ad_cred; /* storage for credential */ - struct authdes_verf ad_verf; /* storage for verifier */ - struct timeval ad_timestamp; /* timestamp sent */ - des_block ad_xkey; /* encrypted conversation key */ - u_char ad_pkey[1024]; /* Server's actual public key */ - char *ad_netid; /* Timehost netid */ - char *ad_uaddr; /* Timehost uaddr */ - nis_server *ad_nis_srvr; /* NIS+ server struct */ -}; - - -/* - * Create the client des authentication object - */ -AUTH * -authdes_create(servername, window, syncaddr, ckey) - char *servername; /* network name of server */ - u_int window; /* time to live */ - struct sockaddr *syncaddr; /* optional addr of host to sync with */ - des_block *ckey; /* optional conversation key to use*/ -{ - - AUTH *auth; - struct ad_private *ad; - char namebuf[MAXNETNAMELEN+1]; - u_char pkey_data[1024]; - - if (!getpublickey(servername, pkey_data)) - return(NULL); - - /* - * Allocate everything now - */ - auth = ALLOC(AUTH); - ad = ALLOC(struct ad_private); - (void) getnetname(namebuf); - - ad->ad_fullnamelen = RNDUP(strlen(namebuf)); - ad->ad_fullname = (char *)mem_alloc(ad->ad_fullnamelen + 1); - - ad->ad_servernamelen = strlen(servername); - ad->ad_servername = (char *)mem_alloc(ad->ad_servernamelen + 1); - - if (auth == NULL || ad == NULL || ad->ad_fullname == NULL || - ad->ad_servername == NULL) { - debug("authdes_create: out of memory"); - goto failed; - } - - /* - * Set up private data - */ - bcopy(namebuf, ad->ad_fullname, ad->ad_fullnamelen + 1); - bcopy(servername, ad->ad_servername, ad->ad_servernamelen + 1); - bcopy(pkey_data, ad->ad_pkey, strlen(pkey_data) + 1); - if (syncaddr != NULL) { - ad->ad_syncaddr = *syncaddr; - ad->ad_dosync = TRUE; - } else { - ad->ad_dosync = FALSE; - } - ad->ad_window = window; - if (ckey == NULL) { - if (key_gendes(&auth->ah_key) < 0) { - debug("authdes_create: unable to gen conversation key"); - return (NULL); - } - } else { - auth->ah_key = *ckey; - } - - /* - * Set up auth handle - */ - auth->ah_cred.oa_flavor = AUTH_DES; - auth->ah_verf.oa_flavor = AUTH_DES; - auth->ah_ops = &authdes_ops; - auth->ah_private = (caddr_t)ad; - - if (!authdes_refresh(auth)) { - goto failed; - } - return (auth); - -failed: - if (auth != NULL) - FREE(auth, sizeof(AUTH)); - if (ad != NULL) - FREE(ad, sizeof(struct ad_private)); - if (ad->ad_fullname != NULL) - FREE(ad->ad_fullname, ad->ad_fullnamelen + 1); - if (ad->ad_servername != NULL) - FREE(ad->ad_servername, ad->ad_servernamelen + 1); - return (NULL); -} - -/* - * Slightly modified version of authdes_create which takes the public key - * of the server principal as an argument. This spares us a call to - * getpublickey() which in the nameserver context can cause a deadlock. - */ -AUTH * -authdes_pk_create(servername, pkey, window, timehost, ckey, srvr) - char *servername; /* network name of server */ - netobj *pkey; /* public key of server */ - u_int window; /* time to live */ - char *timehost; /* optional hostname to sync with */ - des_block *ckey; /* optional conversation key to use */ - nis_server *srvr; /* optional NIS+ server struct */ -{ - AUTH *auth; - struct ad_private *ad; - char namebuf[MAXNETNAMELEN+1]; - - /* - * Allocate everything now - */ - auth = ALLOC(AUTH); - if (auth == NULL) { - debug("authdes_pk_create: out of memory"); - return (NULL); - } - ad = ALLOC(struct ad_private); - if (ad == NULL) { - debug("authdes_pk_create: out of memory"); - goto failed; - } - ad->ad_fullname = ad->ad_servername = NULL; /* Sanity reasons */ - ad->ad_timehost = NULL; - ad->ad_netid = NULL; - ad->ad_uaddr = NULL; - ad->ad_nis_srvr = NULL; - ad->ad_timediff.tv_sec = 0; - ad->ad_timediff.tv_usec = 0; - memcpy(ad->ad_pkey, pkey->n_bytes, pkey->n_len); - if (!getnetname(namebuf)) - goto failed; - ad->ad_fullnamelen = RNDUP((u_int) strlen(namebuf)); - ad->ad_fullname = (char *)mem_alloc(ad->ad_fullnamelen + 1); - ad->ad_servernamelen = strlen(servername); - ad->ad_servername = (char *)mem_alloc(ad->ad_servernamelen + 1); - - if (ad->ad_fullname == NULL || ad->ad_servername == NULL) { - debug("authdes_pk_create: out of memory"); - goto failed; - } - if (timehost != NULL) { - ad->ad_timehost = (char *)mem_alloc(strlen(timehost) + 1); - if (ad->ad_timehost == NULL) { - debug("authdes_pk_create: out of memory"); - goto failed; - } - memcpy(ad->ad_timehost, timehost, strlen(timehost) + 1); - ad->ad_dosync = TRUE; - } else if (srvr != NULL) { - ad->ad_nis_srvr = srvr; /* transient */ - ad->ad_dosync = TRUE; - } else { - ad->ad_dosync = FALSE; - } - memcpy(ad->ad_fullname, namebuf, ad->ad_fullnamelen + 1); - memcpy(ad->ad_servername, servername, ad->ad_servernamelen + 1); - ad->ad_window = window; - if (ckey == NULL) { - if (key_gendes(&auth->ah_key) < 0) { - debug("authdes_pk_create: unable to gen conversation key"); - goto failed; - } - } else { - auth->ah_key = *ckey; - } - - /* - * Set up auth handle - */ - auth->ah_cred.oa_flavor = AUTH_DES; - auth->ah_verf.oa_flavor = AUTH_DES; - auth->ah_ops = &authdes_ops; - auth->ah_private = (caddr_t)ad; - - if (!authdes_refresh(auth)) { - goto failed; - } - ad->ad_nis_srvr = NULL; /* not needed any longer */ - return (auth); - -failed: - if (auth) - FREE(auth, sizeof (AUTH)); - if (ad) { - if (ad->ad_fullname) - FREE(ad->ad_fullname, ad->ad_fullnamelen + 1); - if (ad->ad_servername) - FREE(ad->ad_servername, ad->ad_servernamelen + 1); - if (ad->ad_timehost) - FREE(ad->ad_timehost, strlen(ad->ad_timehost) + 1); - if (ad->ad_netid) - free(ad->ad_netid); - if (ad->ad_uaddr) - free(ad->ad_uaddr); - FREE(ad, sizeof (struct ad_private)); - } - return (NULL); -} -/* - * Implement the five authentication operations - */ - - -/* - * 1. Next Verifier - */ -/*ARGSUSED*/ -static void -authdes_nextverf(auth) - AUTH *auth; -{ - /* what the heck am I supposed to do??? */ -} - - - -/* - * 2. Marshal - */ -static bool_t -authdes_marshal(auth, xdrs) - AUTH *auth; - XDR *xdrs; -{ - struct ad_private *ad = AUTH_PRIVATE(auth); - struct authdes_cred *cred = &ad->ad_cred; - struct authdes_verf *verf = &ad->ad_verf; - des_block cryptbuf[2]; - des_block ivec; - int status; - long len; - int32_t *ixdr; - - /* - * Figure out the "time", accounting for any time difference - * with the server if necessary. - */ - (void) gettimeofday(&ad->ad_timestamp, (struct timezone *)NULL); - ad->ad_timestamp.tv_sec += ad->ad_timediff.tv_sec; - ad->ad_timestamp.tv_usec += ad->ad_timediff.tv_usec; - if (ad->ad_timestamp.tv_usec >= MILLION) { - ad->ad_timestamp.tv_usec -= MILLION; - ad->ad_timestamp.tv_sec += 1; - } - - /* - * XDR the timestamp and possibly some other things, then - * encrypt them. - */ - ixdr = (int32_t *)cryptbuf; - IXDR_PUT_LONG(ixdr, ad->ad_timestamp.tv_sec); - IXDR_PUT_LONG(ixdr, ad->ad_timestamp.tv_usec); - if (ad->ad_cred.adc_namekind == ADN_FULLNAME) { - IXDR_PUT_U_LONG(ixdr, ad->ad_window); - IXDR_PUT_U_LONG(ixdr, ad->ad_window - 1); - ivec.key.high = ivec.key.low = 0; - status = cbc_crypt((char *)&auth->ah_key, (char *)cryptbuf, - 2*sizeof(des_block), DES_ENCRYPT | DES_HW, (char *)&ivec); - } else { - status = ecb_crypt((char *)&auth->ah_key, (char *)cryptbuf, - sizeof(des_block), DES_ENCRYPT | DES_HW); - } - if (DES_FAILED(status)) { - debug("authdes_marshal: DES encryption failure"); - return (FALSE); - } - ad->ad_verf.adv_xtimestamp = cryptbuf[0]; - if (ad->ad_cred.adc_namekind == ADN_FULLNAME) { - ad->ad_cred.adc_fullname.window = cryptbuf[1].key.high; - ad->ad_verf.adv_winverf = cryptbuf[1].key.low; - } else { - ad->ad_cred.adc_nickname = ad->ad_nickname; - ad->ad_verf.adv_winverf = 0; - } - - /* - * Serialize the credential and verifier into opaque - * authentication data. - */ - if (ad->ad_cred.adc_namekind == ADN_FULLNAME) { - len = ((1 + 1 + 2 + 1)*BYTES_PER_XDR_UNIT + ad->ad_fullnamelen); - } else { - len = (1 + 1)*BYTES_PER_XDR_UNIT; - } - - if ((ixdr = xdr_inline(xdrs, 2*BYTES_PER_XDR_UNIT))) { - IXDR_PUT_LONG(ixdr, AUTH_DES); - IXDR_PUT_LONG(ixdr, len); - } else { - ATTEMPT(xdr_putlong(xdrs, (long *)&auth->ah_cred.oa_flavor)); - ATTEMPT(xdr_putlong(xdrs, &len)); - } - ATTEMPT(xdr_authdes_cred(xdrs, cred)); - - len = (2 + 1)*BYTES_PER_XDR_UNIT; - if ((ixdr = xdr_inline(xdrs, 2*BYTES_PER_XDR_UNIT))) { - IXDR_PUT_LONG(ixdr, AUTH_DES); - IXDR_PUT_LONG(ixdr, len); - } else { - ATTEMPT(xdr_putlong(xdrs, (long *)&auth->ah_verf.oa_flavor)); - ATTEMPT(xdr_putlong(xdrs, &len)); - } - ATTEMPT(xdr_authdes_verf(xdrs, verf)); - return (TRUE); -} - - -/* - * 3. Validate - */ -static bool_t -authdes_validate(auth, rverf) - AUTH *auth; - struct opaque_auth *rverf; -{ - struct ad_private *ad = AUTH_PRIVATE(auth); - struct authdes_verf verf; - int status; - register u_long *ixdr; - - if (rverf->oa_length != (2 + 1) * BYTES_PER_XDR_UNIT) { - return (FALSE); - } - ixdr = (u_long *)rverf->oa_base; - verf.adv_xtimestamp.key.high = (u_long)*ixdr++; - verf.adv_xtimestamp.key.low = (u_long)*ixdr++; - verf.adv_int_u = (u_long)*ixdr++; /* nickname not XDR'd ! */ - - /* - * Decrypt the timestamp - */ - status = ecb_crypt((char *)&auth->ah_key, (char *)&verf.adv_xtimestamp, - sizeof(des_block), DES_DECRYPT | DES_HW); - - if (DES_FAILED(status)) { - debug("authdes_validate: DES decryption failure"); - return (FALSE); - } - - /* - * xdr the decrypted timestamp - */ - ixdr = (u_long *)verf.adv_xtimestamp.c; - verf.adv_timestamp.tv_sec = IXDR_GET_LONG(ixdr) + 1; - verf.adv_timestamp.tv_usec = IXDR_GET_LONG(ixdr); - - /* - * validate - */ - if (bcmp((char *)&ad->ad_timestamp, (char *)&verf.adv_timestamp, - sizeof(struct timeval)) != 0) { - debug("authdes_validate: verifier mismatch\n"); - return (FALSE); - } - - /* - * We have a nickname now, let's use it - */ - ad->ad_nickname = verf.adv_nickname; - ad->ad_cred.adc_namekind = ADN_NICKNAME; - return (TRUE); -} - -/* - * 4. Refresh - */ -static bool_t -authdes_refresh(auth) - AUTH *auth; -{ - struct ad_private *ad = AUTH_PRIVATE(auth); - struct authdes_cred *cred = &ad->ad_cred; - netobj pkey; - - if (ad->ad_dosync && -#ifdef old - !synchronize(&ad->ad_syncaddr, &ad->ad_timediff)) { -#else - !__rpc_get_time_offset(&ad->ad_timediff,ad->ad_nis_srvr, - ad->ad_timehost, &(ad->ad_uaddr), - (struct sockaddr_in *)&(ad->ad_syncaddr))) { -#endif - /* - * Hope the clocks are synced! - */ - ad->ad_timediff.tv_sec = ad->ad_timediff.tv_usec = 0; - ad->ad_dosync = 0; - debug("authdes_refresh: unable to synchronize with server"); - } - ad->ad_xkey = auth->ah_key; - pkey.n_bytes = (char *)(ad->ad_pkey); - pkey.n_len = strlen((char *)ad->ad_pkey) + 1; - if (key_encryptsession_pk(ad->ad_servername, &pkey, &ad->ad_xkey) < 0) { - debug("authdes_create: unable to encrypt conversation key"); - return (FALSE); - } - cred->adc_fullname.key = ad->ad_xkey; - cred->adc_namekind = ADN_FULLNAME; - cred->adc_fullname.name = ad->ad_fullname; - return (TRUE); -} - - -/* - * 5. Destroy - */ -static void -authdes_destroy(auth) - AUTH *auth; -{ - struct ad_private *ad = AUTH_PRIVATE(auth); - - FREE(ad->ad_fullname, ad->ad_fullnamelen + 1); - FREE(ad->ad_servername, ad->ad_servernamelen + 1); - FREE(ad, sizeof(struct ad_private)); - FREE(auth, sizeof(AUTH)); -} - - -#ifdef old -/* - * Synchronize with the server at the given address, that is, - * adjust timep to reflect the delta between our clocks - */ -static bool_t -synchronize(syncaddr, timep) - struct sockaddr *syncaddr; - struct timeval *timep; -{ - struct timeval mytime; - struct timeval timeout; - - timeout.tv_sec = RTIME_TIMEOUT; - timeout.tv_usec = 0; - if (rtime((struct sockaddr_in *)syncaddr, timep, NULL /*&timeout*/) < 0) { - return (FALSE); - } - (void) gettimeofday(&mytime, (struct timezone *)NULL); - timep->tv_sec -= mytime.tv_sec; - if (mytime.tv_usec > timep->tv_usec) { - timep->tv_sec -= 1; - timep->tv_usec += MILLION; - } - timep->tv_usec -= mytime.tv_usec; - return (TRUE); -} -#endif |
