diff options
Diffstat (limited to 'sunrpc')
| -rw-r--r-- | sunrpc/Makefile | 11 | ||||
| -rw-r--r-- | sunrpc/auth_des.c | 459 | ||||
| -rw-r--r-- | sunrpc/authdes_prot.c | 81 | ||||
| -rw-r--r-- | sunrpc/des.h | 83 | ||||
| -rw-r--r-- | sunrpc/des_crypt.c | 120 | ||||
| -rw-r--r-- | sunrpc/des_soft.c | 68 | ||||
| -rw-r--r-- | sunrpc/key_call.c | 363 | ||||
| -rw-r--r-- | sunrpc/key_prot.c | 161 | ||||
| -rw-r--r-- | sunrpc/netname.c | 201 | ||||
| -rw-r--r-- | sunrpc/openchild.c | 112 | ||||
| -rw-r--r-- | sunrpc/rpc/auth.h | 210 | ||||
| -rw-r--r-- | sunrpc/rpc/auth_des.h | 104 | ||||
| -rw-r--r-- | sunrpc/rpc/des_crypt.h | 97 | ||||
| -rw-r--r-- | sunrpc/rpc/key_prot.h | 345 | ||||
| -rw-r--r-- | sunrpc/rpcsvc/key_prot.x | 284 | ||||
| -rw-r--r-- | sunrpc/rtime.c | 146 | ||||
| -rw-r--r-- | sunrpc/svc_auth.c | 119 | ||||
| -rw-r--r-- | sunrpc/svcauth_des.c | 548 | ||||
| -rw-r--r-- | sunrpc/xcrypt.c | 180 |
19 files changed, 3688 insertions, 4 deletions
diff --git a/sunrpc/Makefile b/sunrpc/Makefile index b7c86d4..baee72e 100644 --- a/sunrpc/Makefile +++ b/sunrpc/Makefile @@ -47,10 +47,11 @@ subdir := sunrpc rpcsvc = bootparam.x nlm_prot.x rstat.x \ yppasswd.x klm_prot.x rex.x sm_inter.x mount.x \ - rusers.x spray.x nfs_prot.x rquota.x + rusers.x spray.x nfs_prot.x rquota.x key_prot.x headers = $(addprefix rpc/,auth.h auth_unix.h clnt.h netdb.h pmap_clnt.h \ pmap_prot.h pmap_rmt.h rpc.h rpc_msg.h svc.h \ - svc_auth.h types.h xdr.h auth_des.h) \ + svc_auth.h types.h xdr.h auth_des.h \ + des_crypt.h key_prot.h) \ $(rpcsvc:%=rpcsvc/%) install-others = $(inst_sysconfdir)/rpc generated = $(rpcsvc:%.x=rpcsvc/%.h) $(rpcsvc:%.x=x%.c) \ @@ -64,7 +65,9 @@ routines := auth_none auth_unix authuxprot bindrsvprt \ pmap_prot2 pmap_rmt rpc_prot rpc_common rpc_cmsg \ svc svc_auth svc_authux svc_raw svc_run svc_simple \ svc_tcp svc_udp xdr xdr_array xdr_float xdr_mem \ - xdr_rec xdr_ref xdr_stdio publickey xdr_sizeof + xdr_rec xdr_ref xdr_stdio publickey xdr_sizeof \ + auth_des authdes_prot des_crypt des_impl des_soft \ + key_call key_prot netname openchild rtime svcauth_des xcrypt others := rpcinfo install-bin := rpcgen @@ -73,7 +76,7 @@ rpcgen-objs = rpc_main.o rpc_hout.o rpc_cout.o rpc_parse.o \ rpc_scan.o rpc_util.o rpc_svcout.o rpc_clntout.o \ rpc_tblout.o rpc_sample.o # These headers are part of rpcgen. -distribute := proto.h rpc_util.h rpc_parse.h rpc_scan.h \ +distribute := proto.h rpc_util.h rpc_parse.h rpc_scan.h des.h \ $(rpcgen-objs:.o=.c) etc.rpc extra-objs = $(rpcgen-objs) diff --git a/sunrpc/auth_des.c b/sunrpc/auth_des.c new file mode 100644 index 0000000..4ea6391 --- /dev/null +++ b/sunrpc/auth_des.c @@ -0,0 +1,459 @@ +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)auth_des.c 2.2 88/07/29 4.0 RPCSRC; from 1.9 88/02/08 SMI"; +#endif +/* + * 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 <rpc/des_crypt.h> +#include <rpc/types.h> +#include <rpc/auth.h> +#include <rpc/auth_des.h> +#include <rpc/xdr.h> +#include <netinet/in.h> /* XXX: just to get htonl() and ntohl() */ +#include <sys/socket.h> + +#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) */ + +extern int rtime (struct sockaddr_in *, struct timeval *, struct timeval *); +extern bool_t xdr_authdes_cred (XDR *, struct authdes_cred *); +extern bool_t xdr_authdes_verf (XDR *, struct authdes_verf *); + +/* + * DES authenticator operations vector + */ +AUTH *authdes_create (const char *, u_int, struct sockaddr *, + des_block *); +AUTH *authdes_pk_create (const char *, netobj *, u_int, + struct sockaddr *, des_block *); +static void authdes_nextverf (AUTH *); +static bool_t authdes_marshal (AUTH *, XDR *); +static bool_t authdes_validate (AUTH *, struct opaque_auth *); +static bool_t authdes_refresh (AUTH *); +static void authdes_destroy (AUTH *); +static bool_t synchronize (struct sockaddr *, struct timeval *); + +static struct auth_ops authdes_ops = +{ + authdes_nextverf, + authdes_marshal, + authdes_validate, + authdes_refresh, + authdes_destroy +}; + + +/* + * 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 */ + 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]; /* Servers actual public key */ + }; + + +/* + * Create the client des authentication object + */ +AUTH * +authdes_create (const char *servername, u_int window, + struct sockaddr *syncaddr, des_block * ckey) + /* servername - network name of server */ + /* window - time to live */ + /* syncaddr - optional addr of host to sync with */ + /* ckey - optional conversation key to use */ +{ + u_char pkey_data[1024]; + netobj pkey; + + if (!getpublickey (servername, pkey_data)) + return (NULL); + + pkey.n_bytes = (char *) pkey_data; + pkey.n_len = strlen ((char *) pkey_data) + 1; + return authdes_pk_create (servername, &pkey, window, syncaddr, ckey); +} + +AUTH * +authdes_pk_create (const char *servername, netobj * pkey, u_int window, + struct sockaddr * syncaddr, des_block * ckey) +{ + AUTH *auth; + struct ad_private *ad; + char namebuf[MAXNETNAMELEN + 1]; + + /* + * Allocate everything now + */ + auth = ALLOC (AUTH); + ad = ALLOC (struct ad_private); + memcpy (ad->ad_pkey, pkey->n_bytes, pkey->n_len); + if (!getnetname (namebuf)) + goto failed; + ad->ad_fullnamelen = RNDUP (strlen (namebuf)); + ad->ad_fullname = mem_alloc (ad->ad_fullnamelen + 1); + + ad->ad_servernamelen = strlen (servername); + ad->ad_servername = 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); + 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); +} + +/* + * Implement the five authentication operations + */ + + +/* + * 1. Next Verifier + */ +/*ARGSUSED */ +static void +authdes_nextverf (AUTH * auth) +{ + /* what the heck am I supposed to do??? */ +} + + + +/* + * 2. Marshal + */ +static bool_t +authdes_marshal (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; + int len; + register long *ixdr; + + /* + * Figure out the "time", accounting for any time difference + * with the server if necessary. + */ + 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 = (long *) 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)) != NULL) + { + 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, (long *)&len)); + } + ATTEMPT (xdr_authdes_cred (xdrs, cred)); + + len = (2 + 1) * BYTES_PER_XDR_UNIT; + if ((ixdr = xdr_inline (xdrs, 2 * BYTES_PER_XDR_UNIT)) != NULL) + { + 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, (long *)&len)); + } + ATTEMPT (xdr_authdes_verf (xdrs, verf)); + return (TRUE); +} + + +/* + * 3. Validate + */ +static bool_t +authdes_validate (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) +{ + netobj pkey; + struct ad_private *ad = AUTH_PRIVATE (auth); + struct authdes_cred *cred = &ad->ad_cred; + + if (ad->ad_dosync && + !synchronize (&ad->ad_syncaddr, &ad->ad_timediff)) + { + /* + * Hope the clocks are synced! + */ + ad->ad_timediff.tv_sec = ad->ad_timediff.tv_usec = 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) +{ + 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)); +} + +/* + * Synchronize with the server at the given address, that is, + * adjust timep to reflect the delta between our clocks + */ +static bool_t +synchronize (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, &timeout) < 0) + return (FALSE); + + 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); +} diff --git a/sunrpc/authdes_prot.c b/sunrpc/authdes_prot.c new file mode 100644 index 0000000..3c6eacc --- /dev/null +++ b/sunrpc/authdes_prot.c @@ -0,0 +1,81 @@ +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)authdes_prot.c 2.1 88/07/29 4.0 RPCSRC; from 1.6 88/02/08 SMI"; +#endif +/* + * 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. + */ + +/* + * authdes_prot.c, XDR routines for DES authentication + */ + +#include <rpc/types.h> +#include <rpc/xdr.h> +#include <rpc/auth.h> +#include <rpc/auth_des.h> + +#define ATTEMPT(xdr_op) if (!(xdr_op)) return (FALSE) + +bool_t +xdr_authdes_cred (XDR * xdrs, struct authdes_cred *cred) +{ + /* + * Unrolled xdr + */ + ATTEMPT (xdr_enum (xdrs, (enum_t *) & cred->adc_namekind)); + switch (cred->adc_namekind) + { + case ADN_FULLNAME: + ATTEMPT (xdr_string (xdrs, &cred->adc_fullname.name, MAXNETNAMELEN)); + ATTEMPT (xdr_opaque (xdrs, (caddr_t) & cred->adc_fullname.key, sizeof (des_block))); + ATTEMPT (xdr_opaque (xdrs, (caddr_t) & cred->adc_fullname.window, sizeof (cred->adc_fullname.window))); + return (TRUE); + case ADN_NICKNAME: + ATTEMPT (xdr_opaque (xdrs, (caddr_t) & cred->adc_nickname, sizeof (cred->adc_nickname))); + return TRUE; + default: + return FALSE; + } +} + + +bool_t +xdr_authdes_verf (register XDR * xdrs, register struct authdes_verf * verf) +{ + /* + * Unrolled xdr + */ + ATTEMPT (xdr_opaque (xdrs, (caddr_t) & verf->adv_xtimestamp, + sizeof (des_block))); + ATTEMPT (xdr_opaque (xdrs, (caddr_t) & verf->adv_int_u, + sizeof (verf->adv_int_u))); + return TRUE; +} diff --git a/sunrpc/des.h b/sunrpc/des.h new file mode 100644 index 0000000..68bd7c4 --- /dev/null +++ b/sunrpc/des.h @@ -0,0 +1,83 @@ +/* @(#)des.h 2.2 88/08/10 4.0 RPCSRC; from 2.7 88/02/08 SMI */ +/* + * 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 + */ +/* + * Generic DES driver interface + * Keep this file hardware independent! + * Copyright (c) 1986 by Sun Microsystems, Inc. + */ + +#ifndef _DES_H +#define _DES_H + +#include <sys/types.h> + +#define DES_MAXLEN 65536 /* maximum # of bytes to encrypt */ +#define DES_QUICKLEN 16 /* maximum # of bytes to encrypt quickly */ + +enum desdir + { + ENCRYPT, DECRYPT + }; +enum desmode + { + CBC, ECB + }; + +/* + * parameters to ioctl call + */ +struct desparams + { + u_char des_key[8]; /* key (with low bit parity) */ + enum desdir des_dir; /* direction */ + enum desmode des_mode; /* mode */ + u_char des_ivec[8]; /* input vector */ + unsigned des_len; /* number of bytes to crypt */ + union + { + u_char UDES_data[DES_QUICKLEN]; + u_char *UDES_buf; + } + UDES; +#define des_data UDES.UDES_data /* direct data here if quick */ +#define des_buf UDES.UDES_buf /* otherwise, pointer to data */ + }; + +/* + * Encrypt an arbitrary sized buffer + */ +#define DESIOCBLOCK _IOWR(d, 6, struct desparams) + +/* + * Encrypt of small amount of data, quickly + */ +#define DESIOCQUICK _IOWR(d, 7, struct desparams) + +#endif diff --git a/sunrpc/des_crypt.c b/sunrpc/des_crypt.c new file mode 100644 index 0000000..7a4bc5d --- /dev/null +++ b/sunrpc/des_crypt.c @@ -0,0 +1,120 @@ +/* + * 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 + */ +#if !defined(lint) && defined(SCCSID) +static char sccsid[] = "@(#)des_crypt.c 2.2 88/08/10 4.0 RPCSRC; from 1.13 88/02/08 SMI"; +#endif +/* + * des_crypt.c, DES encryption library routines + * Copyright (C) 1986, Sun Microsystems, Inc. + */ + +#include <sys/types.h> +#include <rpc/des_crypt.h> +#include "des.h" + +extern int _des_crypt (char *, unsigned, struct desparams *); + +/* + * Copy 8 bytes + */ +#define COPY8(src, dst) { \ + register char *a = (char *) dst; \ + register char *b = (char *) src; \ + *a++ = *b++; *a++ = *b++; *a++ = *b++; *a++ = *b++; \ + *a++ = *b++; *a++ = *b++; *a++ = *b++; *a++ = *b++; \ +} + +/* + * Copy multiple of 8 bytes + */ +#define DESCOPY(src, dst, len) { \ + register char *a = (char *) dst; \ + register char *b = (char *) src; \ + register int i; \ + for (i = (int) len; i > 0; i -= 8) { \ + *a++ = *b++; *a++ = *b++; *a++ = *b++; *a++ = *b++; \ + *a++ = *b++; *a++ = *b++; *a++ = *b++; *a++ = *b++; \ + } \ +} + +/* + * Common code to cbc_crypt() & ecb_crypt() + */ +static int +common_crypt (char *key, char *buf, register unsigned len, + unsigned mode, register struct desparams *desp) +{ + register int desdev; + + if ((len % 8) != 0 || len > DES_MAXDATA) + return DESERR_BADPARAM; + + desp->des_dir = + ((mode & DES_DIRMASK) == DES_ENCRYPT) ? ENCRYPT : DECRYPT; + + desdev = mode & DES_DEVMASK; + COPY8 (key, desp->des_key); + /* + * software + */ + if (!_des_crypt (buf, len, desp)) + return DESERR_HWERROR; + + return desdev == DES_SW ? DESERR_NONE : DESERR_NOHWDEVICE; +} + +/* + * CBC mode encryption + */ +int +cbc_crypt (char *key, char *buf, unsigned int len, unsigned int mode, + char *ivec) +{ + int err; + struct desparams dp; + + dp.des_mode = CBC; + COPY8 (ivec, dp.des_ivec); + err = common_crypt (key, buf, len, mode, &dp); + COPY8 (dp.des_ivec, ivec); + return err; +} + + +/* + * ECB mode encryption + */ +int +ecb_crypt (char *key, char *buf, unsigned int len, unsigned int mode) +{ + struct desparams dp; + + dp.des_mode = ECB; + return common_crypt (key, buf, len, mode, &dp); +} diff --git a/sunrpc/des_soft.c b/sunrpc/des_soft.c new file mode 100644 index 0000000..ae12d7b --- /dev/null +++ b/sunrpc/des_soft.c @@ -0,0 +1,68 @@ +#if !defined(lint) && defined(SCCSIDS) +static char sccsid[] = "@(#)des_soft.c 2.2 88/08/10 4.0 RPCSRC; from 1.13 88/02/08 SMI"; +#endif +/* + * 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 + */ +/* + * Table giving odd parity in the low bit for ASCII characters + */ +static char partab[128] = +{ + 0x01, 0x01, 0x02, 0x02, 0x04, 0x04, 0x07, 0x07, + 0x08, 0x08, 0x0b, 0x0b, 0x0d, 0x0d, 0x0e, 0x0e, + 0x10, 0x10, 0x13, 0x13, 0x15, 0x15, 0x16, 0x16, + 0x19, 0x19, 0x1a, 0x1a, 0x1c, 0x1c, 0x1f, 0x1f, + 0x20, 0x20, 0x23, 0x23, 0x25, 0x25, 0x26, 0x26, + 0x29, 0x29, 0x2a, 0x2a, 0x2c, 0x2c, 0x2f, 0x2f, + 0x31, 0x31, 0x32, 0x32, 0x34, 0x34, 0x37, 0x37, + 0x38, 0x38, 0x3b, 0x3b, 0x3d, 0x3d, 0x3e, 0x3e, + 0x40, 0x40, 0x43, 0x43, 0x45, 0x45, 0x46, 0x46, + 0x49, 0x49, 0x4a, 0x4a, 0x4c, 0x4c, 0x4f, 0x4f, + 0x51, 0x51, 0x52, 0x52, 0x54, 0x54, 0x57, 0x57, + 0x58, 0x58, 0x5b, 0x5b, 0x5d, 0x5d, 0x5e, 0x5e, + 0x61, 0x61, 0x62, 0x62, 0x64, 0x64, 0x67, 0x67, + 0x68, 0x68, 0x6b, 0x6b, 0x6d, 0x6d, 0x6e, 0x6e, + 0x70, 0x70, 0x73, 0x73, 0x75, 0x75, 0x76, 0x76, + 0x79, 0x79, 0x7a, 0x7a, 0x7c, 0x7c, 0x7f, 0x7f, +}; + +/* + * Add odd parity to low bit of 8 byte key + */ +void +des_setparity (char *p) +{ + int i; + + for (i = 0; i < 8; i++) + { + *p = partab[*p & 0x7f]; + p++; + } +} diff --git a/sunrpc/key_call.c b/sunrpc/key_call.c new file mode 100644 index 0000000..ba1c263 --- /dev/null +++ b/sunrpc/key_call.c @@ -0,0 +1,363 @@ +/* + * Copyright (c) 1988 by Sun Microsystems, Inc. + */ +/* + * 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 + */ + +/* + * The original source is from the RPCSRC 4.0 package from Sun Microsystems. + * The Interface to keyserver protocoll 2 was added by + * Thorsten Kukuk <kukuk@vt.uni-paderborn.de> + */ + +#include <stdio.h> +#include <signal.h> +#include <unistd.h> +#include <string.h> +#include <rpc/rpc.h> +#include <rpc/auth.h> +#include <sys/wait.h> +#include <sys/param.h> +#include <sys/socket.h> +#include <rpc/key_prot.h> + +#define KEY_TIMEOUT 5 /* per-try timeout in seconds */ +#define KEY_NRETRY 12 /* number of retries */ + +#define debug(msg) /* turn off debugging */ + +extern int _openchild (char *command, FILE ** fto, FILE ** ffrom); + + +static int key_call (u_long, xdrproc_t xdr_arg, char *, + xdrproc_t xdr_rslt, char *); + +static struct timeval trytimeout = {KEY_TIMEOUT, 0}; +static struct timeval tottimeout = {KEY_TIMEOUT * KEY_NRETRY, 0}; + +int +key_setsecret (char *secretkey) +{ + keystatus status; + + if (!key_call ((u_long) KEY_SET, (xdrproc_t) xdr_keybuf, secretkey, + (xdrproc_t) xdr_keystatus, (char *) &status)) + return -1; + if (status != KEY_SUCCESS) + { + debug ("set status is nonzero"); + return -1; + } + return 0; +} + +/* key_secretkey_is_set() returns 1 if the keyserver has a secret key + * stored for the caller's effective uid; it returns 0 otherwise + * + * N.B.: The KEY_NET_GET key call is undocumented. Applications shouldn't + * be using it, because it allows them to get the user's secret key. + */ +int +key_secretkey_is_set (void) +{ + struct key_netstres kres; + + memset (&kres, 0, sizeof (kres)); + if (key_call ((u_long) KEY_NET_GET, (xdrproc_t) xdr_void, (char *) NULL, + (xdrproc_t) xdr_key_netstres, (char *) &kres) && + (kres.status == KEY_SUCCESS) && + (kres.key_netstres_u.knet.st_priv_key[0] != 0)) + { + /* avoid leaving secret key in memory */ + memset (kres.key_netstres_u.knet.st_priv_key, 0, HEXKEYBYTES); + return 1; + } + return 0; +} + +int +key_encryptsession (char *remotename, des_block * deskey) +{ + cryptkeyarg arg; + cryptkeyres res; + + arg.remotename = remotename; + arg.deskey = *deskey; + if (!key_call ((u_long) KEY_ENCRYPT, (xdrproc_t) xdr_cryptkeyarg, + (char *) &arg, (xdrproc_t) xdr_cryptkeyres, (char *) &res)) + return -1; + + if (res.status != KEY_SUCCESS) + { + debug ("encrypt status is nonzero"); + return -1; + } + *deskey = res.cryptkeyres_u.deskey; + return 0; +} + +int +key_decryptsession (char *remotename, des_block * deskey) +{ + cryptkeyarg arg; + cryptkeyres res; + + arg.remotename = remotename; + arg.deskey = *deskey; + if (!key_call ((u_long) KEY_DECRYPT, (xdrproc_t) xdr_cryptkeyarg, + (char *) &arg, (xdrproc_t) xdr_cryptkeyres, (char *) &res)) + return -1; + if (res.status != KEY_SUCCESS) + { + debug ("decrypt status is nonzero"); + return -1; + } + *deskey = res.cryptkeyres_u.deskey; + return 0; +} + +int +key_encryptsession_pk (char *remotename, netobj * remotekey, + des_block * deskey) +{ + cryptkeyarg2 arg; + cryptkeyres res; + + arg.remotename = remotename; + arg.remotekey = *remotekey; + arg.deskey = *deskey; + if (!key_call ((u_long) KEY_ENCRYPT_PK, (xdrproc_t) xdr_cryptkeyarg2, + (char *) &arg, (xdrproc_t) xdr_cryptkeyres, (char *) &res)) + return -1; + + if (res.status != KEY_SUCCESS) + { + debug ("encrypt status is nonzero"); + return -1; + } + *deskey = res.cryptkeyres_u.deskey; + return 0; +} + +int +key_decryptsession_pk (char *remotename, netobj * remotekey, + des_block * deskey) +{ + cryptkeyarg2 arg; + cryptkeyres res; + + arg.remotename = remotename; + arg.remotekey = *remotekey; + arg.deskey = *deskey; + if (!key_call ((u_long) KEY_DECRYPT_PK, (xdrproc_t) xdr_cryptkeyarg2, + (char *) &arg, (xdrproc_t) xdr_cryptkeyres, (char *) &res)) + return -1; + + if (res.status != KEY_SUCCESS) + { + debug ("decrypt status is nonzero"); + return -1; + } + *deskey = res.cryptkeyres_u.deskey; + return 0; +} + +int +key_gendes (des_block * key) +{ + struct sockaddr_in sin; + CLIENT *client; + int socket; + enum clnt_stat stat; + + sin.sin_family = AF_INET; + sin.sin_port = 0; + sin.sin_addr.s_addr = htonl (INADDR_LOOPBACK); + bzero (sin.sin_zero, sizeof (sin.sin_zero)); + socket = RPC_ANYSOCK; + client = clntudp_bufcreate (&sin, (u_long) KEY_PROG, (u_long) KEY_VERS, + trytimeout, &socket, RPCSMALLMSGSIZE, + RPCSMALLMSGSIZE); + if (client == NULL) + return -1; + + stat = clnt_call (client, KEY_GEN, (xdrproc_t) xdr_void, NULL, + (xdrproc_t) xdr_des_block, (caddr_t) key, tottimeout); + clnt_destroy (client); + close (socket); + if (stat != RPC_SUCCESS) + return -1; + + return 0; +} + +int +key_setnet (struct key_netstarg *arg) +{ + keystatus status; + + if (!key_call ((u_long) KEY_NET_PUT, (xdrproc_t) xdr_key_netstarg, + (char *) arg,(xdrproc_t) xdr_keystatus, (char *) &status)) + return -1; + + if (status != KEY_SUCCESS) + { + debug ("key_setnet status is nonzero"); + return -1; + } + return 1; +} + +int +key_get_conv (char *pkey, des_block * deskey) +{ + cryptkeyres res; + + if (!key_call ((u_long) KEY_GET_CONV, (xdrproc_t) xdr_keybuf, pkey, + (xdrproc_t) xdr_cryptkeyres, (char *) &res)) + return -1; + + if (res.status != KEY_SUCCESS) + { + debug ("get_conv status is nonzero"); + return -1; + } + *deskey = res.cryptkeyres_u.deskey; + return 0; +} + +/* + * Hack to allow the keyserver to use AUTH_DES (for authenticated + * NIS+ calls, for example). The only functions that get called + * are key_encryptsession_pk, key_decryptsession_pk, and key_gendes. + * + * The approach is to have the keyserver fill in pointers to local + * implementations of these functions, and to call those in key_call(). + */ + +cryptkeyres *(*__key_encryptsession_pk_LOCAL) (uid_t, char *) = 0; +cryptkeyres *(*__key_decryptsession_pk_LOCAL) (uid_t, char *) = 0; +des_block *(*__key_gendes_LOCAL) (uid_t, char *) = 0; + +static int +key_call (u_long proc, xdrproc_t xdr_arg, char *arg, + xdrproc_t xdr_rslt, char *rslt) +{ + XDR xdrargs; + XDR xdrrslt; + FILE *fargs; + FILE *frslt; + void (*osigchild) (int); + union wait status; + int pid; + int success; + uid_t ruid; + uid_t euid; + static char MESSENGER[] = "/usr/etc/keyenvoy"; + + success = 1; + osigchild = signal (SIGCHLD, SIG_IGN); + + if (proc == KEY_ENCRYPT_PK && __key_encryptsession_pk_LOCAL) + { + cryptkeyres *res; + res = (*__key_encryptsession_pk_LOCAL) (geteuid (), arg); + *(cryptkeyres *) rslt = *res; + return 1; + } + else if (proc == KEY_DECRYPT_PK && __key_decryptsession_pk_LOCAL) + { + cryptkeyres *res; + res = (*__key_decryptsession_pk_LOCAL) (geteuid (), arg); + *(cryptkeyres *) rslt = *res; + return 1; + } + else if (proc == KEY_GEN && __key_gendes_LOCAL) + { + des_block *res; + res = (*__key_gendes_LOCAL) (geteuid (), 0); + *(des_block *) rslt = *res; + return 1; + } + + /* + * We are going to exec a set-uid program which makes our effective uid + * zero, and authenticates us with our real uid. We need to make the + * effective uid be the real uid for the setuid program, and + * the real uid be the effective uid so that we can change things back. + */ + euid = geteuid (); + ruid = getuid (); + setreuid (euid, ruid); + pid = _openchild (MESSENGER, &fargs, &frslt); + setreuid (ruid, euid); + if (pid < 0) + { + debug ("open_streams"); + return (0); + } + xdrstdio_create (&xdrargs, fargs, XDR_ENCODE); + xdrstdio_create (&xdrrslt, frslt, XDR_DECODE); + + if (!xdr_u_long (&xdrargs, &proc) || !(*xdr_arg) (&xdrargs, arg)) + { + debug ("xdr args"); + success = 0; + } + fclose (fargs); + + if (success && !(*xdr_rslt) (&xdrrslt, rslt)) + { + debug ("xdr rslt"); + success = 0; + } + +#ifdef NOTDEF + /* + * WARNING! XXX + * The original code appears first. wait4 returns only after the process + * with the requested pid terminates. The effect of using wait() instead + * has not been determined. + */ + fclose (frslt); + if (wait4 (pid, &status, 0, NULL) < 0 || status.w_retcode != 0) + { + debug ("wait4"); + success = 0; + } +#endif /* def NOTDEF */ + if (wait (&status) < 0 || status.w_retcode != 0) + { + debug ("wait"); + success = 0; + } + signal (SIGCHLD, osigchild); + + return (success); +} diff --git a/sunrpc/key_prot.c b/sunrpc/key_prot.c new file mode 100644 index 0000000..5de8e25 --- /dev/null +++ b/sunrpc/key_prot.c @@ -0,0 +1,161 @@ +/* + * 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 + */ +#pragma ident "@(#)key_prot.x 1.7 94/04/29 SMI" + +/* Copyright (c) 1990, 1991 Sun Microsystems, Inc. */ + +#include "rpc/key_prot.h" + +bool_t +xdr_keystatus (XDR * xdrs, keystatus * objp) +{ + if (!xdr_enum (xdrs, (enum_t *) objp)) + return FALSE; + + return TRUE; +} + +bool_t +xdr_keybuf (XDR * xdrs, keybuf objp) +{ + if (!xdr_opaque (xdrs, objp, HEXKEYBYTES)) + return FALSE; + + return TRUE; +} + +bool_t +xdr_netnamestr (XDR * xdrs, netnamestr * objp) +{ + if (!xdr_string (xdrs, objp, MAXNETNAMELEN)) + return FALSE; + + return TRUE; +} + +bool_t +xdr_cryptkeyarg (XDR * xdrs, cryptkeyarg * objp) +{ + if (!xdr_netnamestr (xdrs, &objp->remotename)) + return FALSE; + + if (!xdr_des_block (xdrs, &objp->deskey)) + return FALSE; + + return TRUE; +} + +bool_t +xdr_cryptkeyarg2 (XDR * xdrs, cryptkeyarg2 * objp) +{ + if (!xdr_netnamestr (xdrs, &objp->remotename)) + return FALSE; + if (!xdr_netobj (xdrs, &objp->remotekey)) + return FALSE; + if (!xdr_des_block (xdrs, &objp->deskey)) + return FALSE; + return TRUE; +} + +bool_t +xdr_cryptkeyres (XDR * xdrs, cryptkeyres * objp) +{ + if (!xdr_keystatus (xdrs, &objp->status)) + return FALSE; + switch (objp->status) + { + case KEY_SUCCESS: + if (!xdr_des_block (xdrs, &objp->cryptkeyres_u.deskey)) + return FALSE; + break; + default: + break; + } + return TRUE; +} + +bool_t +xdr_unixcred (XDR * xdrs, unixcred * objp) +{ + if (!xdr_u_int (xdrs, &objp->uid)) + return FALSE; + if (!xdr_u_int (xdrs, &objp->gid)) + return FALSE; + if (!xdr_array (xdrs, (char **) &objp->gids.gids_val, + (u_int *) & objp->gids.gids_len, MAXGIDS, + sizeof (u_int), (xdrproc_t) xdr_u_int)) + return FALSE; + return TRUE; +} + +bool_t +xdr_getcredres (XDR * xdrs, getcredres * objp) +{ + if (!xdr_keystatus (xdrs, &objp->status)) + return FALSE; + switch (objp->status) + { + case KEY_SUCCESS: + if (!xdr_unixcred (xdrs, &objp->getcredres_u.cred)) + return FALSE; + break; + default: + break; + } + return TRUE; +} + +bool_t +xdr_key_netstarg (XDR * xdrs, key_netstarg * objp) +{ + if (!xdr_keybuf (xdrs, objp->st_priv_key)) + return FALSE; + if (!xdr_keybuf (xdrs, objp->st_pub_key)) + return FALSE; + if (!xdr_netnamestr (xdrs, &objp->st_netname)) + return FALSE; + return TRUE; +} + +bool_t +xdr_key_netstres (XDR * xdrs, key_netstres * objp) +{ + if (!xdr_keystatus (xdrs, &objp->status)) + return FALSE; + switch (objp->status) + { + case KEY_SUCCESS: + if (!xdr_key_netstarg (xdrs, &objp->key_netstres_u.knet)) + return FALSE; + break; + default: + break; + } + return TRUE; +} diff --git a/sunrpc/netname.c b/sunrpc/netname.c new file mode 100644 index 0000000..be6c2f2 --- /dev/null +++ b/sunrpc/netname.c @@ -0,0 +1,201 @@ +/* Copyright (C) 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <stdio.h> +#include <unistd.h> +#include <string.h> +#include <rpc/rpc.h> + +#include "nsswitch.h" + +#define OPSYS_LEN 4 +#define MAXIPRINT (11) /* max length of printed integer */ +static const char *OPSYS = "unix"; + +int +user2netname (char netname[MAXNETNAMELEN + 1], const uid_t uid, + const char *domain) +{ + char dfltdom[MAXNETNAMELEN + 1]; + size_t i; + + if (domain == NULL) + { + if (getdomainname (dfltdom, sizeof (dfltdom)) < 0) + return 0; + } + else + { + strncpy (dfltdom, domain, MAXNETNAMELEN); + dfltdom[MAXNETNAMELEN] = '\0'; + } + + if ((strlen (dfltdom) + OPSYS_LEN + 3 + MAXIPRINT) > (size_t) MAXNETNAMELEN) + return 0; + + sprintf (netname, "%s.%d@%s", OPSYS, uid, dfltdom); + i = strlen (netname); + if (netname[i - 1] == '.') + netname[i - 1] = '\0'; + return 1; +} + +int +host2netname (char netname[MAXNETNAMELEN + 1], const char *host, + const char *domain) +{ + char *p; + char hostname[MAXHOSTNAMELEN + 1]; + char domainname[MAXHOSTNAMELEN + 1]; + char *dot_in_host; + size_t i; + + netname[0] = '\0'; /* make null first (no need for memset) */ + + if (host == NULL) + gethostname (hostname, MAXHOSTNAMELEN); + else + { + strncpy (hostname, host, MAXHOSTNAMELEN); + hostname[MAXHOSTNAMELEN] = '\0'; + } + + dot_in_host = strchr (hostname, '.'); + if (domain == NULL) + { + p = dot_in_host; + if (p) + { + strncpy (domainname, p, MAXHOSTNAMELEN); + domainname[MAXHOSTNAMELEN] = '\0'; + } + else + { + domainname[0] = 0; + getdomainname (domainname, MAXHOSTNAMELEN); + } + } + else + { + strncpy (domainname, domain, MAXHOSTNAMELEN); + domainname[MAXHOSTNAMELEN] = '\0'; + } + + i = strlen (domainname); + if (i == 0) + /* No domainname */ + return 0; + if (domainname[i - 1] == '.') + domainname[i - 1] = 0; + + if (dot_in_host) /* strip off rest of name */ + *dot_in_host = '\0'; + + if ((strlen (domainname) + strlen (hostname) + OPSYS_LEN + 3) + > MAXNETNAMELEN) + return 0; + + sprintf (netname, "%s.%s@%s", OPSYS, hostname, domainname); + return 1; +} + +int +getnetname (char name[MAXNETNAMELEN + 1]) +{ + uid_t uid; + int dummy; + + uid = geteuid (); + if (uid == 0) + dummy = host2netname (name, NULL, NULL); + else + dummy = user2netname (name, uid, NULL); + return (dummy); +} + +/* Type of the lookup function for netname2user. */ +typedef int (*netname2user_function) (const char netname[MAXNETNAMELEN + 1], + uid_t *, gid_t *, int *, gid_t *); +/* The lookup function for the first entry of this service. */ +extern int __nss_publickey_lookup (service_user ** nip, const char *name, + void **fctp); + +int +netname2user (const char netname[MAXNETNAMELEN + 1], uid_t * uidp, gid_t * gidp, + int *gidlenp, gid_t * gidlist) +{ + static service_user *startp = NULL; + static netname2user_function start_fct; + service_user *nip; + netname2user_function fct; + enum nss_status status = NSS_STATUS_UNAVAIL; + int no_more; + + if (startp == NULL) + { + no_more = __nss_publickey_lookup (&nip, "netname2user", (void **) &fct); + if (no_more) + startp = (service_user *) - 1; + else + { + startp = nip; + start_fct = fct; + } + } + else + { + fct = start_fct; + no_more = (nip = startp) == (service_user *) - 1; + } + + while (!no_more) + { + status = (*fct) (netname, uidp, gidp, gidlenp, gidlist); + + no_more = __nss_next (&nip, "netname2user", (void **) &fct, status, 0); + } + + return status == NSS_STATUS_SUCCESS; +} + +int +netname2host (const char netname[MAXNETNAMELEN + 1], char *hostname, + const int hostlen) +{ + char *p1, *p2; + char buffer[MAXNETNAMELEN + 1]; + + p1 = strchr (buffer, '.'); + if (p1 == NULL) + return 0; + p1++; + + p2 = strchr (p1, '@'); + if (p2 == NULL) + return 0; + *p2 = '\0'; + + if (hostlen > MAXNETNAMELEN) + return 0; + + strncpy (hostname, p1, hostlen); + hostname[hostlen] = '\0'; + + return 1; +} diff --git a/sunrpc/openchild.c b/sunrpc/openchild.c new file mode 100644 index 0000000..2fa26fa --- /dev/null +++ b/sunrpc/openchild.c @@ -0,0 +1,112 @@ +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)openchild.c 2.3 88/08/15 4.0 RPCSRC; from 1.7 88/02/08 SMI"; +#endif +/* + * 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. + */ + +/* + * Open two pipes to a child process, one for reading, one for writing. + * The pipes are accessed by FILE pointers. This is NOT a public + * interface, but for internal use only! + */ +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <string.h> +#include <rpc/rpc.h> +#include <rpc/clnt.h> + +static char SHELL[] = "/bin/sh"; + +/* + * returns pid, or -1 for failure + */ +int +_openchild (char *command, FILE ** fto, FILE ** ffrom) +{ + int i; + int pid; + int pdto[2]; + int pdfrom[2]; + char *com; + + if (pipe (pdto) < 0) + goto error1; + if (pipe (pdfrom) < 0) + goto error2; + switch (pid = vfork ()) + { + case -1: + goto error3; + + case 0: + /* + * child: read from pdto[0], write into pdfrom[1] + */ + close (0); + dup (pdto[0]); + close (1); + dup (pdfrom[1]); + for (i = _rpc_dtablesize () - 1; i >= 3; i--) + close (i); + com = malloc (strlen (command) + 6); + if (com == NULL) + _exit (~0); + sprintf (com, "exec %s", command); + execl (SHELL, basename (SHELL), "-c", com, NULL); + _exit (~0); + + default: + /* + * parent: write into pdto[1], read from pdfrom[0] + */ + *fto = fdopen (pdto[1], "w"); + close (pdto[0]); + *ffrom = fdopen (pdfrom[0], "r"); + close (pdfrom[1]); + break; + } + return pid; + + /* + * error cleanup and return + */ +error3: + close (pdfrom[0]); + close (pdfrom[1]); +error2: + close (pdto[0]); + close (pdto[1]); +error1: + return -1; +} diff --git a/sunrpc/rpc/auth.h b/sunrpc/rpc/auth.h new file mode 100644 index 0000000..2217419 --- /dev/null +++ b/sunrpc/rpc/auth.h @@ -0,0 +1,210 @@ +/* @(#)auth.h 2.3 88/08/07 4.0 RPCSRC; from 1.17 88/02/08 SMI */ +/* + * 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 + */ + +/* + * auth.h, Authentication interface. + * + * Copyright (C) 1984, Sun Microsystems, Inc. + * + * The data structures are completely opaque to the client. The client + * is required to pass a AUTH * to routines that create rpc + * "sessions". + */ + +#ifndef _RPC_AUTH_H + +#define _RPC_AUTH_H 1 +#include <features.h> +#include <rpc/xdr.h> + +__BEGIN_DECLS + +#define MAX_AUTH_BYTES 400 +#define MAXNETNAMELEN 255 /* maximum length of network user's name */ + +/* + * Status returned from authentication check + */ +enum auth_stat { + AUTH_OK=0, + /* + * failed at remote end + */ + AUTH_BADCRED=1, /* bogus credentials (seal broken) */ + AUTH_REJECTEDCRED=2, /* client should begin new session */ + AUTH_BADVERF=3, /* bogus verifier (seal broken) */ + AUTH_REJECTEDVERF=4, /* verifier expired or was replayed */ + AUTH_TOOWEAK=5, /* rejected due to security reasons */ + /* + * failed locally + */ + AUTH_INVALIDRESP=6, /* bogus response verifier */ + AUTH_FAILED=7 /* some unknown reason */ +}; + +union des_block { + struct { + u_int32_t high; + u_int32_t low; + } key; + char c[8]; +}; +typedef union des_block des_block; +extern bool_t xdr_des_block __P ((XDR *__xdrs, des_block *__blkp)); + +/* + * Authentication info. Opaque to client. + */ +struct opaque_auth { + enum_t oa_flavor; /* flavor of auth */ + caddr_t oa_base; /* address of more auth stuff */ + u_int oa_length; /* not to exceed MAX_AUTH_BYTES */ +}; + +/* + * Auth handle, interface to client side authenticators. + */ +typedef struct AUTH AUTH; +struct AUTH { + struct opaque_auth ah_cred; + struct opaque_auth ah_verf; + union des_block ah_key; + struct auth_ops { + void (*ah_nextverf) __P ((AUTH *)); + int (*ah_marshal) __P ((AUTH *, XDR *)); /* nextverf & serialize */ + int (*ah_validate) __P ((AUTH *, struct opaque_auth *)); + /* validate verifier */ + int (*ah_refresh) __P ((AUTH *)); /* refresh credentials */ + void (*ah_destroy) __P ((AUTH *)); /* destroy this structure */ + } *ah_ops; + caddr_t ah_private; +}; + + +/* + * Authentication ops. + * The ops and the auth handle provide the interface to the authenticators. + * + * AUTH *auth; + * XDR *xdrs; + * struct opaque_auth verf; + */ +#define AUTH_NEXTVERF(auth) \ + ((*((auth)->ah_ops->ah_nextverf))(auth)) +#define auth_nextverf(auth) \ + ((*((auth)->ah_ops->ah_nextverf))(auth)) + +#define AUTH_MARSHALL(auth, xdrs) \ + ((*((auth)->ah_ops->ah_marshal))(auth, xdrs)) +#define auth_marshall(auth, xdrs) \ + ((*((auth)->ah_ops->ah_marshal))(auth, xdrs)) + +#define AUTH_VALIDATE(auth, verfp) \ + ((*((auth)->ah_ops->ah_validate))((auth), verfp)) +#define auth_validate(auth, verfp) \ + ((*((auth)->ah_ops->ah_validate))((auth), verfp)) + +#define AUTH_REFRESH(auth) \ + ((*((auth)->ah_ops->ah_refresh))(auth)) +#define auth_refresh(auth) \ + ((*((auth)->ah_ops->ah_refresh))(auth)) + +#define AUTH_DESTROY(auth) \ + ((*((auth)->ah_ops->ah_destroy))(auth)) +#define auth_destroy(auth) \ + ((*((auth)->ah_ops->ah_destroy))(auth)) + + +extern struct opaque_auth _null_auth; + + +/* + * These are the various implementations of client side authenticators. + */ + +/* + * Unix style authentication + * AUTH *authunix_create(machname, uid, gid, len, aup_gids) + * char *machname; + * int uid; + * int gid; + * int len; + * int *aup_gids; + */ +extern AUTH *authunix_create __P ((char *__machname, __uid_t __uid, + __gid_t __gid, int __len, + __gid_t *__aup_gids)); +extern AUTH *authunix_create_default __P ((void)); +extern AUTH *authnone_create __P ((void)); +extern AUTH *authdes_create __P ((const char *__servername, u_int __window, + struct sockaddr *__syncaddr, + des_block *__ckey)); + +#define AUTH_NONE 0 /* no authentication */ +#define AUTH_NULL 0 /* backward compatibility */ +#define AUTH_SYS 1 /* unix style (uid, gids) */ +#define AUTH_UNIX AUTH_SYS +#define AUTH_SHORT 2 /* short hand unix style */ +#define AUTH_DES 3 /* des style (encrypted timestamps) */ +#define AUTH_KERB 4 /* kerberos style */ + +/* + * Netname manipulating functions + * + */ +extern int getnetname __P ((char *)); +extern int host2netname __P ((char *, __const char *, __const char *)); +extern int user2netname __P ((char *, __const uid_t, __const char *)); +extern int netname2user __P ((__const char *, uid_t *, gid_t *, int *, + gid_t *)); +extern int netname2host __P ((__const char *, char *, __const int)); + +/* + * + * These routines interface to the keyserv daemon + * + */ +extern int key_decryptsession __P ((char *, des_block *)); +extern int key_decryptsession_pk __P ((char *, netobj *, des_block *)); +extern int key_encryptsession __P ((char *, des_block *)); +extern int key_encryptsession_pk __P ((char *, netobj *, des_block *)); +extern int key_gendes __P ((des_block *)); +extern int key_setsecret __P ((char *)); +extern int key_secretkey_is_set __P ((void)); +extern int key_get_conv __P ((char *, des_block *)); + +__END_DECLS + +/* This is for compiling the glibc NIS+ code with DES auth. */ +#ifdef _LIBC +#define HAVE_SECURE_RPC 1 +#endif + +#endif /* rpc/auth.h */ diff --git a/sunrpc/rpc/auth_des.h b/sunrpc/rpc/auth_des.h new file mode 100644 index 0000000..87fb8f0 --- /dev/null +++ b/sunrpc/rpc/auth_des.h @@ -0,0 +1,104 @@ +/* Copyright (C) 1996, 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef _RPC_AUTH_DES_H + +#define _RPC_AUTH_DES_H 1 +#include <sys/cdefs.h> + +__BEGIN_DECLS + +/* There are two kinds of "names": fullnames and nicknames */ +enum authdes_namekind + { + ADN_FULLNAME, + ADN_NICKNAME + }; + +/* A fullname contains the network name of the client, + a conversation key and the window */ +struct authdes_fullname + { + char *name; /* network name of client, up to MAXNETNAMELEN */ + des_block key; /* conversation key */ + u_long window; /* associated window */ + }; + +/* A credential */ +struct authdes_cred + { + enum authdes_namekind adc_namekind; + struct authdes_fullname adc_fullname; + u_long adc_nickname; + }; + +/* A des authentication verifier */ +struct authdes_verf + { + union + { + struct timeval adv_ctime; /* clear time */ + des_block adv_xtime; /* crypt time */ + } + adv_time_u; + u_long adv_int_u; + }; + +/* des authentication verifier: client variety + + adv_timestamp is the current time. + adv_winverf is the credential window + 1. + Both are encrypted using the conversation key. */ +#define adv_timestamp adv_time_u.adv_ctime +#define adv_xtimestamp adv_time_u.adv_xtime +#define adv_winverf adv_int_u + +/* des authentication verifier: server variety + + adv_timeverf is the client's timestamp + client's window + adv_nickname is the server's nickname for the client. + adv_timeverf is encrypted using the conversation key. */ +#define adv_timeverf adv_time_u.adv_ctime +#define adv_xtimeverf adv_time_u.adv_xtime +#define adv_nickname adv_int_u + +/* Map a des credential into a unix cred. */ +extern int authdes_getucred __P ((__const struct authdes_cred * __adc, + uid_t * __uid, gid_t * __gid, + short *__grouplen, gid_t * __groups)); + +/* Get the public key for NAME and place it in KEY. NAME can only be + up to MAXNETNAMELEN bytes long and the destination buffer KEY should + have HEXKEYBATES + 1 bytes long to fit all characters from the key. */ +extern int getpublickey __P ((__const char *__name, char *__key)); + +/* Get the secret key for NAME and place it in KEY. PASSWD is used to + decrypt the encrypted key stored in the database. NAME can only be + up to MAXNETNAMELEN bytes long and the destination buffer KEY + should have HEXKEYBATES + 1 bytes long to fit all characters from + the key. */ +extern int getsecretkey __P ((__const char *__name, char *__key, + __const char *__passwd)); + +extern int rtime __P ((struct sockaddr_in *__addrp, struct timeval *__timep, + struct timeval *__timeout)); + +__END_DECLS + + +#endif /* rpc/auth_des.h */ diff --git a/sunrpc/rpc/des_crypt.h b/sunrpc/rpc/des_crypt.h new file mode 100644 index 0000000..e20cc38 --- /dev/null +++ b/sunrpc/rpc/des_crypt.h @@ -0,0 +1,97 @@ +/* + * @(#)des_crypt.h 2.1 88/08/11 4.0 RPCSRC; from 1.4 88/02/08 (C) 1986 SMI + * + * des_crypt.h, des library routine interface + * Copyright (C) 1986, Sun Microsystems, Inc. + */ +/* + * 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 + */ + +#ifndef __DES_CRYPT_H__ +#define __DES_CRYPT_H__ 1 + +#include <features.h> + +__BEGIN_DECLS + +#define DES_MAXDATA 8192 /* max bytes encrypted in one call */ +#define DES_DIRMASK (1 << 0) +#define DES_ENCRYPT (0*DES_DIRMASK) /* Encrypt */ +#define DES_DECRYPT (1*DES_DIRMASK) /* Decrypt */ + + +#define DES_DEVMASK (1 << 1) +#define DES_HW (0*DES_DEVMASK) /* Use hardware device */ +#define DES_SW (1*DES_DEVMASK) /* Use software device */ + + +#define DESERR_NONE 0 /* succeeded */ +#define DESERR_NOHWDEVICE 1 /* succeeded, but hw device not available */ +#define DESERR_HWERROR 2 /* failed, hardware/driver error */ +#define DESERR_BADPARAM 3 /* failed, bad parameter to call */ + +#define DES_FAILED(err) \ + ((err) > DESERR_NOHWDEVICE) + +/* + * cbc_crypt() + * ecb_crypt() + * + * Encrypt (or decrypt) len bytes of a buffer buf. + * The length must be a multiple of eight. + * The key should have odd parity in the low bit of each byte. + * ivec is the input vector, and is updated to the new one (cbc only). + * The mode is created by oring together the appropriate parameters. + * DESERR_NOHWDEVICE is returned if DES_HW was specified but + * there was no hardware to do it on (the data will still be + * encrypted though, in software). + */ + + +/* + * Cipher Block Chaining mode + */ +extern int cbc_crypt __P ((char *__key, char *__buf, unsigned __len, + unsigned __mode, char *__ivec)); + +/* + * Electronic Code Book mode + */ +extern int ecb_crypt __P ((char *__key, char *__buf, unsigned __len, + unsigned __mode)); + +/* + * Set des parity for a key. + * DES parity is odd and in the low bit of each byte + */ +extern void des_setparity __P ((char *__key)); + +__END_DECLS + +#endif diff --git a/sunrpc/rpc/key_prot.h b/sunrpc/rpc/key_prot.h new file mode 100644 index 0000000..a23f2cd --- /dev/null +++ b/sunrpc/rpc/key_prot.h @@ -0,0 +1,345 @@ +/* + * Please do not edit this file. + * It was generated using rpcgen. + */ + +#ifndef _KEY_PROT_H_RPCGEN +#define _KEY_PROT_H_RPCGEN + +#include <rpc/rpc.h> + +/* + * 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 + */ +#pragma ident "@(#)key_prot.x 1.7 94/04/29 SMI" + +/* Copyright (c) 1990, 1991 Sun Microsystems, Inc. */ + +/* + * Compiled from key_prot.x using rpcgen. + * DO NOT EDIT THIS FILE! + * This is NOT source code! + */ +#define PROOT 3 +#define HEXMODULUS "d4a0ba0250b6fd2ec626e7efd637df76c716e22d0944b88b" +#define HEXKEYBYTES 48 +#define KEYSIZE 192 +#define KEYBYTES 24 +#define KEYCHECKSUMSIZE 16 + +enum keystatus { + KEY_SUCCESS = 0, + KEY_NOSECRET = 1, + KEY_UNKNOWN = 2, + KEY_SYSTEMERR = 3, +}; +typedef enum keystatus keystatus; +#ifdef __cplusplus +extern "C" bool_t xdr_keystatus(XDR *, keystatus*); +#elif __STDC__ +extern bool_t xdr_keystatus(XDR *, keystatus*); +#else /* Old Style C */ +bool_t xdr_keystatus(); +#endif /* Old Style C */ + + +typedef char keybuf[HEXKEYBYTES]; +#ifdef __cplusplus +extern "C" bool_t xdr_keybuf(XDR *, keybuf); +#elif __STDC__ +extern bool_t xdr_keybuf(XDR *, keybuf); +#else /* Old Style C */ +bool_t xdr_keybuf(); +#endif /* Old Style C */ + + +typedef char *netnamestr; +#ifdef __cplusplus +extern "C" bool_t xdr_netnamestr(XDR *, netnamestr*); +#elif __STDC__ +extern bool_t xdr_netnamestr(XDR *, netnamestr*); +#else /* Old Style C */ +bool_t xdr_netnamestr(); +#endif /* Old Style C */ + + +struct cryptkeyarg { + netnamestr remotename; + des_block deskey; +}; +typedef struct cryptkeyarg cryptkeyarg; +#ifdef __cplusplus +extern "C" bool_t xdr_cryptkeyarg(XDR *, cryptkeyarg*); +#elif __STDC__ +extern bool_t xdr_cryptkeyarg(XDR *, cryptkeyarg*); +#else /* Old Style C */ +bool_t xdr_cryptkeyarg(); +#endif /* Old Style C */ + + +struct cryptkeyarg2 { + netnamestr remotename; + netobj remotekey; + des_block deskey; +}; +typedef struct cryptkeyarg2 cryptkeyarg2; +#ifdef __cplusplus +extern "C" bool_t xdr_cryptkeyarg2(XDR *, cryptkeyarg2*); +#elif __STDC__ +extern bool_t xdr_cryptkeyarg2(XDR *, cryptkeyarg2*); +#else /* Old Style C */ +bool_t xdr_cryptkeyarg2(); +#endif /* Old Style C */ + + +struct cryptkeyres { + keystatus status; + union { + des_block deskey; + } cryptkeyres_u; +}; +typedef struct cryptkeyres cryptkeyres; +#ifdef __cplusplus +extern "C" bool_t xdr_cryptkeyres(XDR *, cryptkeyres*); +#elif __STDC__ +extern bool_t xdr_cryptkeyres(XDR *, cryptkeyres*); +#else /* Old Style C */ +bool_t xdr_cryptkeyres(); +#endif /* Old Style C */ + +#define MAXGIDS 16 + +struct unixcred { + u_int uid; + u_int gid; + struct { + u_int gids_len; + u_int *gids_val; + } gids; +}; +typedef struct unixcred unixcred; +#ifdef __cplusplus +extern "C" bool_t xdr_unixcred(XDR *, unixcred*); +#elif __STDC__ +extern bool_t xdr_unixcred(XDR *, unixcred*); +#else /* Old Style C */ +bool_t xdr_unixcred(); +#endif /* Old Style C */ + + +struct getcredres { + keystatus status; + union { + unixcred cred; + } getcredres_u; +}; +typedef struct getcredres getcredres; +#ifdef __cplusplus +extern "C" bool_t xdr_getcredres(XDR *, getcredres*); +#elif __STDC__ +extern bool_t xdr_getcredres(XDR *, getcredres*); +#else /* Old Style C */ +bool_t xdr_getcredres(); +#endif /* Old Style C */ + + +struct key_netstarg { + keybuf st_priv_key; + keybuf st_pub_key; + netnamestr st_netname; +}; +typedef struct key_netstarg key_netstarg; +#ifdef __cplusplus +extern "C" bool_t xdr_key_netstarg(XDR *, key_netstarg*); +#elif __STDC__ +extern bool_t xdr_key_netstarg(XDR *, key_netstarg*); +#else /* Old Style C */ +bool_t xdr_key_netstarg(); +#endif /* Old Style C */ + + +struct key_netstres { + keystatus status; + union { + key_netstarg knet; + } key_netstres_u; +}; +typedef struct key_netstres key_netstres; +#ifdef __cplusplus +extern "C" bool_t xdr_key_netstres(XDR *, key_netstres*); +#elif __STDC__ +extern bool_t xdr_key_netstres(XDR *, key_netstres*); +#else /* Old Style C */ +bool_t xdr_key_netstres(); +#endif /* Old Style C */ + + +#ifndef opaque +#define opaque char +#endif + + +#define KEY_PROG ((u_long)100029) +#define KEY_VERS ((u_long)1) + +#ifdef __cplusplus +#define KEY_SET ((u_long)1) +extern "C" keystatus * key_set_1(opaque *, CLIENT *); +extern "C" keystatus * key_set_1_svc(opaque *, struct svc_req *); +#define KEY_ENCRYPT ((u_long)2) +extern "C" cryptkeyres * key_encrypt_1(cryptkeyarg *, CLIENT *); +extern "C" cryptkeyres * key_encrypt_1_svc(cryptkeyarg *, struct svc_req *); +#define KEY_DECRYPT ((u_long)3) +extern "C" cryptkeyres * key_decrypt_1(cryptkeyarg *, CLIENT *); +extern "C" cryptkeyres * key_decrypt_1_svc(cryptkeyarg *, struct svc_req *); +#define KEY_GEN ((u_long)4) +extern "C" des_block * key_gen_1(void *, CLIENT *); +extern "C" des_block * key_gen_1_svc(void *, struct svc_req *); +#define KEY_GETCRED ((u_long)5) +extern "C" getcredres * key_getcred_1(netnamestr *, CLIENT *); +extern "C" getcredres * key_getcred_1_svc(netnamestr *, struct svc_req *); + +#elif __STDC__ +#define KEY_SET ((u_long)1) +extern keystatus * key_set_1(opaque *, CLIENT *); +extern keystatus * key_set_1_svc(opaque *, struct svc_req *); +#define KEY_ENCRYPT ((u_long)2) +extern cryptkeyres * key_encrypt_1(cryptkeyarg *, CLIENT *); +extern cryptkeyres * key_encrypt_1_svc(cryptkeyarg *, struct svc_req *); +#define KEY_DECRYPT ((u_long)3) +extern cryptkeyres * key_decrypt_1(cryptkeyarg *, CLIENT *); +extern cryptkeyres * key_decrypt_1_svc(cryptkeyarg *, struct svc_req *); +#define KEY_GEN ((u_long)4) +extern des_block * key_gen_1(void *, CLIENT *); +extern des_block * key_gen_1_svc(void *, struct svc_req *); +#define KEY_GETCRED ((u_long)5) +extern getcredres * key_getcred_1(netnamestr *, CLIENT *); +extern getcredres * key_getcred_1_svc(netnamestr *, struct svc_req *); + +#else /* Old Style C */ +#define KEY_SET ((u_long)1) +extern keystatus * key_set_1(); +extern keystatus * key_set_1_svc(); +#define KEY_ENCRYPT ((u_long)2) +extern cryptkeyres * key_encrypt_1(); +extern cryptkeyres * key_encrypt_1_svc(); +#define KEY_DECRYPT ((u_long)3) +extern cryptkeyres * key_decrypt_1(); +extern cryptkeyres * key_decrypt_1_svc(); +#define KEY_GEN ((u_long)4) +extern des_block * key_gen_1(); +extern des_block * key_gen_1_svc(); +#define KEY_GETCRED ((u_long)5) +extern getcredres * key_getcred_1(); +extern getcredres * key_getcred_1_svc(); +#endif /* Old Style C */ +#define KEY_VERS2 ((u_long)2) + +#ifdef __cplusplus +extern "C" keystatus * key_set_2(opaque *, CLIENT *); +extern "C" keystatus * key_set_2_svc(opaque *, struct svc_req *); +extern "C" cryptkeyres * key_encrypt_2(cryptkeyarg *, CLIENT *); +extern "C" cryptkeyres * key_encrypt_2_svc(cryptkeyarg *, struct svc_req *); +extern "C" cryptkeyres * key_decrypt_2(cryptkeyarg *, CLIENT *); +extern "C" cryptkeyres * key_decrypt_2_svc(cryptkeyarg *, struct svc_req *); +extern "C" des_block * key_gen_2(void *, CLIENT *); +extern "C" des_block * key_gen_2_svc(void *, struct svc_req *); +extern "C" getcredres * key_getcred_2(netnamestr *, CLIENT *); +extern "C" getcredres * key_getcred_2_svc(netnamestr *, struct svc_req *); +#define KEY_ENCRYPT_PK ((u_long)6) +extern "C" cryptkeyres * key_encrypt_pk_2(cryptkeyarg2 *, CLIENT *); +extern "C" cryptkeyres * key_encrypt_pk_2_svc(cryptkeyarg2 *, struct svc_req *); +#define KEY_DECRYPT_PK ((u_long)7) +extern "C" cryptkeyres * key_decrypt_pk_2(cryptkeyarg2 *, CLIENT *); +extern "C" cryptkeyres * key_decrypt_pk_2_svc(cryptkeyarg2 *, struct svc_req *); +#define KEY_NET_PUT ((u_long)8) +extern "C" keystatus * key_net_put_2(key_netstarg *, CLIENT *); +extern "C" keystatus * key_net_put_2_svc(key_netstarg *, struct svc_req *); +#define KEY_NET_GET ((u_long)9) +extern "C" key_netstres * key_net_get_2(void *, CLIENT *); +extern "C" key_netstres * key_net_get_2_svc(void *, struct svc_req *); +#define KEY_GET_CONV ((u_long)10) +extern "C" cryptkeyres * key_get_conv_2(opaque *, CLIENT *); +extern "C" cryptkeyres * key_get_conv_2_svc(opaque *, struct svc_req *); + +#elif __STDC__ +extern keystatus * key_set_2(opaque *, CLIENT *); +extern keystatus * key_set_2_svc(opaque *, struct svc_req *); +extern cryptkeyres * key_encrypt_2(cryptkeyarg *, CLIENT *); +extern cryptkeyres * key_encrypt_2_svc(cryptkeyarg *, struct svc_req *); +extern cryptkeyres * key_decrypt_2(cryptkeyarg *, CLIENT *); +extern cryptkeyres * key_decrypt_2_svc(cryptkeyarg *, struct svc_req *); +extern des_block * key_gen_2(void *, CLIENT *); +extern des_block * key_gen_2_svc(void *, struct svc_req *); +extern getcredres * key_getcred_2(netnamestr *, CLIENT *); +extern getcredres * key_getcred_2_svc(netnamestr *, struct svc_req *); +#define KEY_ENCRYPT_PK ((u_long)6) +extern cryptkeyres * key_encrypt_pk_2(cryptkeyarg2 *, CLIENT *); +extern cryptkeyres * key_encrypt_pk_2_svc(cryptkeyarg2 *, struct svc_req *); +#define KEY_DECRYPT_PK ((u_long)7) +extern cryptkeyres * key_decrypt_pk_2(cryptkeyarg2 *, CLIENT *); +extern cryptkeyres * key_decrypt_pk_2_svc(cryptkeyarg2 *, struct svc_req *); +#define KEY_NET_PUT ((u_long)8) +extern keystatus * key_net_put_2(key_netstarg *, CLIENT *); +extern keystatus * key_net_put_2_svc(key_netstarg *, struct svc_req *); +#define KEY_NET_GET ((u_long)9) +extern key_netstres * key_net_get_2(void *, CLIENT *); +extern key_netstres * key_net_get_2_svc(void *, struct svc_req *); +#define KEY_GET_CONV ((u_long)10) +extern cryptkeyres * key_get_conv_2(opaque *, CLIENT *); +extern cryptkeyres * key_get_conv_2_svc(opaque *, struct svc_req *); + +#else /* Old Style C */ +extern keystatus * key_set_2(); +extern keystatus * key_set_2_svc(); +extern cryptkeyres * key_encrypt_2(); +extern cryptkeyres * key_encrypt_2_svc(); +extern cryptkeyres * key_decrypt_2(); +extern cryptkeyres * key_decrypt_2_svc(); +extern des_block * key_gen_2(); +extern des_block * key_gen_2_svc(); +extern getcredres * key_getcred_2(); +extern getcredres * key_getcred_2_svc(); +#define KEY_ENCRYPT_PK ((u_long)6) +extern cryptkeyres * key_encrypt_pk_2(); +extern cryptkeyres * key_encrypt_pk_2_svc(); +#define KEY_DECRYPT_PK ((u_long)7) +extern cryptkeyres * key_decrypt_pk_2(); +extern cryptkeyres * key_decrypt_pk_2_svc(); +#define KEY_NET_PUT ((u_long)8) +extern keystatus * key_net_put_2(); +extern keystatus * key_net_put_2_svc(); +#define KEY_NET_GET ((u_long)9) +extern key_netstres * key_net_get_2(); +extern key_netstres * key_net_get_2_svc(); +#define KEY_GET_CONV ((u_long)10) +extern cryptkeyres * key_get_conv_2(); +extern cryptkeyres * key_get_conv_2_svc(); +#endif /* Old Style C */ + +#endif /* !_KEY_PROT_H_RPCGEN */ diff --git a/sunrpc/rpcsvc/key_prot.x b/sunrpc/rpcsvc/key_prot.x new file mode 100644 index 0000000..af22a20 --- /dev/null +++ b/sunrpc/rpcsvc/key_prot.x @@ -0,0 +1,284 @@ +%/* +% * 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 +% */ +/* + * Key server protocol definition + * Copyright (C) 1990, 1991 Sun Microsystems, Inc. + * + * The keyserver is a public key storage/encryption/decryption service + * The encryption method used is based on the Diffie-Hellman exponential + * key exchange technology. + * + * The key server is local to each machine, akin to the portmapper. + * Under TI-RPC, communication with the keyserver is through the + * loopback transport. + * + * NOTE: This .x file generates the USER level headers for the keyserver. + * the KERNEL level headers are created by hand as they kernel has special + * requirements. + */ + +%#pragma ident "@(#)key_prot.x 1.7 94/04/29 SMI" +% +%/* Copyright (c) 1990, 1991 Sun Microsystems, Inc. */ +% +%/* +% * Compiled from key_prot.x using rpcgen. +% * DO NOT EDIT THIS FILE! +% * This is NOT source code! +% */ + +/* + * PROOT and MODULUS define the way the Diffie-Hellman key is generated. + * + * MODULUS should be chosen as a prime of the form: MODULUS == 2*p + 1, + * where p is also prime. + * + * PROOT satisfies the following two conditions: + * (1) (PROOT ** 2) % MODULUS != 1 + * (2) (PROOT ** p) % MODULUS != 1 + * + */ + +const PROOT = 3; +const HEXMODULUS = "d4a0ba0250b6fd2ec626e7efd637df76c716e22d0944b88b"; + +const HEXKEYBYTES = 48; /* HEXKEYBYTES == strlen(HEXMODULUS) */ +const KEYSIZE = 192; /* KEYSIZE == bit length of key */ +const KEYBYTES = 24; /* byte length of key */ + +/* + * The first 16 hex digits of the encrypted secret key are used as + * a checksum in the database. + */ +const KEYCHECKSUMSIZE = 16; + +/* + * status of operation + */ +enum keystatus { + KEY_SUCCESS, /* no problems */ + KEY_NOSECRET, /* no secret key stored */ + KEY_UNKNOWN, /* unknown netname */ + KEY_SYSTEMERR /* system error (out of memory, encryption failure) */ +}; + +typedef opaque keybuf[HEXKEYBYTES]; /* store key in hex */ + +typedef string netnamestr<MAXNETNAMELEN>; + +/* + * Argument to ENCRYPT or DECRYPT + */ +struct cryptkeyarg { + netnamestr remotename; + des_block deskey; +}; + +/* + * Argument to ENCRYPT_PK or DECRYPT_PK + */ +struct cryptkeyarg2 { + netnamestr remotename; + netobj remotekey; /* Contains a length up to 1024 bytes */ + des_block deskey; +}; + + +/* + * Result of ENCRYPT, DECRYPT, ENCRYPT_PK, and DECRYPT_PK + */ +union cryptkeyres switch (keystatus status) { +case KEY_SUCCESS: + des_block deskey; +default: + void; +}; + +const MAXGIDS = 16; /* max number of gids in gid list */ + +/* + * Unix credential + */ +struct unixcred { + u_int uid; + u_int gid; + u_int gids<MAXGIDS>; +}; + +/* + * Result returned from GETCRED + */ +union getcredres switch (keystatus status) { +case KEY_SUCCESS: + unixcred cred; +default: + void; +}; +/* + * key_netstarg; + */ + +struct key_netstarg { + keybuf st_priv_key; + keybuf st_pub_key; + netnamestr st_netname; +}; + +union key_netstres switch (keystatus status){ +case KEY_SUCCESS: + key_netstarg knet; +default: + void; +}; + +#ifdef RPC_HDR +% +%#ifndef opaque +%#define opaque char +%#endif +% +#endif +program KEY_PROG { + version KEY_VERS { + + /* + * This is my secret key. + * Store it for me. + */ + keystatus + KEY_SET(keybuf) = 1; + + /* + * I want to talk to X. + * Encrypt a conversation key for me. + */ + cryptkeyres + KEY_ENCRYPT(cryptkeyarg) = 2; + + /* + * X just sent me a message. + * Decrypt the conversation key for me. + */ + cryptkeyres + KEY_DECRYPT(cryptkeyarg) = 3; + + /* + * Generate a secure conversation key for me + */ + des_block + KEY_GEN(void) = 4; + + /* + * Get me the uid, gid and group-access-list associated + * with this netname (for kernel which cannot use NIS) + */ + getcredres + KEY_GETCRED(netnamestr) = 5; + } = 1; + version KEY_VERS2 { + + /* + * ####### + * Procedures 1-5 are identical to version 1 + * ####### + */ + + /* + * This is my secret key. + * Store it for me. + */ + keystatus + KEY_SET(keybuf) = 1; + + /* + * I want to talk to X. + * Encrypt a conversation key for me. + */ + cryptkeyres + KEY_ENCRYPT(cryptkeyarg) = 2; + + /* + * X just sent me a message. + * Decrypt the conversation key for me. + */ + cryptkeyres + KEY_DECRYPT(cryptkeyarg) = 3; + + /* + * Generate a secure conversation key for me + */ + des_block + KEY_GEN(void) = 4; + + /* + * Get me the uid, gid and group-access-list associated + * with this netname (for kernel which cannot use NIS) + */ + getcredres + KEY_GETCRED(netnamestr) = 5; + + /* + * I want to talk to X. and I know X's public key + * Encrypt a conversation key for me. + */ + cryptkeyres + KEY_ENCRYPT_PK(cryptkeyarg2) = 6; + + /* + * X just sent me a message. and I know X's public key + * Decrypt the conversation key for me. + */ + cryptkeyres + KEY_DECRYPT_PK(cryptkeyarg2) = 7; + + /* + * Store my public key, netname and private key. + */ + keystatus + KEY_NET_PUT(key_netstarg) = 8; + + /* + * Retrieve my public key, netname and private key. + */ + key_netstres + KEY_NET_GET(void) = 9; + + /* + * Return me the conversation key that is constructed + * from my secret key and this publickey. + */ + + cryptkeyres + KEY_GET_CONV(keybuf) = 10; + + + } = 2; +} = 100029; + + diff --git a/sunrpc/rtime.c b/sunrpc/rtime.c new file mode 100644 index 0000000..baaced0 --- /dev/null +++ b/sunrpc/rtime.c @@ -0,0 +1,146 @@ +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)rtime.c 2.2 88/08/10 4.0 RPCSRC; from 1.8 88/02/08 SMI"; +#endif +/* + * 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. + */ +/* + * rtime - get time from remote machine + * + * gets time, obtaining value from host + * on the udp/time socket. Since timeserver returns + * with time of day in seconds since Jan 1, 1900, must + * subtract seconds before Jan 1, 1970 to get + * what unix uses. + */ +#include <stdio.h> +#include <unistd.h> +#include <rpc/rpc.h> +#include <rpc/clnt.h> +#include <sys/types.h> +#include <sys/socket.h> +#include <sys/time.h> +#include <rpc/auth_des.h> +#include <errno.h> +#include <netinet/in.h> + +#define NYEARS (u_long)(1970 - 1900) +#define TOFFSET (u_long)(60*60*24*(365*NYEARS + (NYEARS/4))) + +static void do_close (int); + +static void +do_close (int s) +{ + int save; + + save = errno; + close (s); + __set_errno (save); +} + +int +rtime (struct sockaddr_in *addrp, struct timeval *timep, + struct timeval *timeout) +{ + int s; + fd_set readfds; + int res; + unsigned long thetime; + struct sockaddr_in from; + int fromlen; + int type; + + if (timeout == NULL) + type = SOCK_STREAM; + else + type = SOCK_DGRAM; + + s = socket (AF_INET, type, 0); + if (s < 0) + return (-1); + + addrp->sin_family = AF_INET; + addrp->sin_port = htons (IPPORT_TIMESERVER); + if (type == SOCK_DGRAM) + { + res = sendto (s, (char *) &thetime, sizeof (thetime), 0, + (struct sockaddr *) addrp, sizeof (*addrp)); + if (res < 0) + { + do_close (s); + return -1; + } + do + { + FD_ZERO (&readfds); + FD_SET (s, &readfds); + res = select (_rpc_dtablesize (), &readfds, (void *) NULL, + (void *) NULL, timeout); + } + while (res < 0 && errno == EINTR); + if (res <= 0) + { + if (res == 0) + __set_errno (ETIMEDOUT); + do_close (s); + return (-1); + } + fromlen = sizeof (from); + res = recvfrom (s, (char *) &thetime, sizeof (thetime), 0, + (struct sockaddr *) &from, &fromlen); + do_close (s); + if (res < 0) + return -1; + } + else + { + if (connect (s, (struct sockaddr *) addrp, sizeof (*addrp)) < 0) + { + do_close (s); + return -1; + } + res = read (s, (char *) &thetime, sizeof (thetime)); + do_close (s); + if (res < 0) + return (-1); + } + if (res != sizeof (thetime)) + { + __set_errno (EIO); + return -1; + } + thetime = ntohl (thetime); + timep->tv_sec = thetime - TOFFSET; + timep->tv_usec = 0; + return 0; +} diff --git a/sunrpc/svc_auth.c b/sunrpc/svc_auth.c new file mode 100644 index 0000000..f0aebd5 --- /dev/null +++ b/sunrpc/svc_auth.c @@ -0,0 +1,119 @@ +/* @(#)svc_auth.c 2.4 88/08/15 4.0 RPCSRC */ +/* + * 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 + */ +#if !defined(lint) && defined(SCCSIDS) +static char sccsid[] = "@(#)svc_auth.c 1.19 87/08/11 Copyr 1984 Sun Micro"; +#endif + +/* + * svc_auth.c, Server-side rpc authenticator interface. + * + * Copyright (C) 1984, Sun Microsystems, Inc. + */ + +#include <rpc/rpc.h> +#include <rpc/svc.h> +#include <rpc/svc_auth.h> + +/* + * svcauthsw is the bdevsw of server side authentication. + * + * Server side authenticators are called from authenticate by + * using the client auth struct flavor field to index into svcauthsw. + * The server auth flavors must implement a routine that looks + * like: + * + * enum auth_stat + * flavorx_auth(rqst, msg) + * register struct svc_req *rqst; + * register struct rpc_msg *msg; + * + */ + +static enum auth_stat _svcauth_null (struct svc_req *, struct rpc_msg *); + /* no authentication */ +extern enum auth_stat _svcauth_unix (struct svc_req *, struct rpc_msg *); + /* unix style (uid, gids) */ +extern enum auth_stat _svcauth_short (struct svc_req *, struct rpc_msg *); + /* short hand unix style */ +extern enum auth_stat _svcauth_des (struct svc_req *, struct rpc_msg *); + /* des style */ + +static const struct + { + enum auth_stat (*authenticator) (struct svc_req *, struct rpc_msg *); + } +svcauthsw[] = +{ + { _svcauth_null }, /* AUTH_NULL */ + { _svcauth_unix }, /* AUTH_UNIX */ + { _svcauth_short }, /* AUTH_SHORT */ + { _svcauth_des } /* AUTH_DES */ +}; +#define AUTH_MAX 3 /* HIGHEST AUTH NUMBER */ + + +/* + * The call rpc message, msg has been obtained from the wire. The msg contains + * the raw form of credentials and verifiers. authenticate returns AUTH_OK + * if the msg is successfully authenticated. If AUTH_OK then the routine also + * does the following things: + * set rqst->rq_xprt->verf to the appropriate response verifier; + * sets rqst->rq_client_cred to the "cooked" form of the credentials. + * + * NB: rqst->rq_cxprt->verf must be pre-allocated; + * its length is set appropriately. + * + * The caller still owns and is responsible for msg->u.cmb.cred and + * msg->u.cmb.verf. The authentication system retains ownership of + * rqst->rq_client_cred, the cooked credentials. + * + * There is an assumption that any flavour less than AUTH_NULL is + * invalid. + */ +enum auth_stat +_authenticate (register struct svc_req *rqst, struct rpc_msg *msg) +{ + register int cred_flavor; + + rqst->rq_cred = msg->rm_call.cb_cred; + rqst->rq_xprt->xp_verf.oa_flavor = _null_auth.oa_flavor; + rqst->rq_xprt->xp_verf.oa_length = 0; + cred_flavor = rqst->rq_cred.oa_flavor; + if ((cred_flavor <= AUTH_MAX) && (cred_flavor >= AUTH_NULL)) + return (*(svcauthsw[cred_flavor].authenticator)) (rqst, msg); + + return AUTH_REJECTEDCRED; +} + +static enum auth_stat +_svcauth_null (struct svc_req *rqst, struct rpc_msg *msg) +{ + return AUTH_OK; +} diff --git a/sunrpc/svcauth_des.c b/sunrpc/svcauth_des.c new file mode 100644 index 0000000..3547830 --- /dev/null +++ b/sunrpc/svcauth_des.c @@ -0,0 +1,548 @@ +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)svcauth_des.c 2.3 89/07/11 4.0 RPCSRC; from 1.15 88/02/08 SMI"; +#endif + +/* + * Copyright (c) 1988 by Sun Microsystems, Inc. + */ + +/* + * 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 + */ + +/* + * svcauth_des.c, server-side des authentication + * + * We insure for the service the following: + * (1) The timestamp microseconds do not exceed 1 million. + * (2) The timestamp plus the window is less than the current time. + * (3) The timestamp is not less than the one previously + * seen in the current session. + * + * It is up to the server to determine if the window size is + * too small . + * + */ + +#include <string.h> +#include <sys/param.h> +#include <netinet/in.h> +#include <rpc/types.h> +#include <rpc/xdr.h> +#include <rpc/auth.h> +#include <rpc/auth_des.h> +#include <rpc/svc_auth.h> +#include <rpc/svc.h> +#include <rpc/des_crypt.h> + +#define debug(msg) /*printf("svcauth_des: %s\n", msg) */ + +#define USEC_PER_SEC ((u_long) 1000000L) +#define BEFORE(t1, t2) timercmp(t1, t2, <) + +/* + * LRU cache of conversation keys and some other useful items. + */ +#define AUTHDES_CACHESZ 64 +struct cache_entry + { + des_block key; /* conversation key */ + char *rname; /* client's name */ + u_int window; /* credential lifetime window */ + struct timeval laststamp; /* detect replays of creds */ + char *localcred; /* generic local credential */ + }; +static struct cache_entry *authdes_cache /* [AUTHDES_CACHESZ] */ ; +static short *authdes_lru /* [AUTHDES_CACHESZ] */ ; + +static void cache_init (void); /* initialize the cache */ +static short cache_spot (des_block *, char *, struct timeval *); + /* find an entry in the cache */ +static void cache_ref (short sid); /* note that sid was ref'd */ + +static void invalidate (char *cred); /* invalidate entry in cache */ + +/* + * cache statistics + */ +struct + { + u_long ncachehits; /* times cache hit, and is not replay */ + u_long ncachereplays; /* times cache hit, and is replay */ + u_long ncachemisses; /* times cache missed */ + } +svcauthdes_stats; + +/* + * Service side authenticator for AUTH_DES + */ +enum auth_stat +_svcauth_des (register struct svc_req *rqst, register struct rpc_msg *msg) +{ + register long *ixdr; + des_block cryptbuf[2]; + register struct authdes_cred *cred; + struct authdes_verf verf; + int status; + register struct cache_entry *entry; + short sid = 0; + des_block *sessionkey; + des_block ivec; + u_int window; + struct timeval timestamp; + u_long namelen; + struct area + { + struct authdes_cred area_cred; + char area_netname[MAXNETNAMELEN + 1]; + } + *area; + + if (authdes_cache == NULL) + cache_init (); + + area = (struct area *) rqst->rq_clntcred; + cred = (struct authdes_cred *) &area->area_cred; + + /* + * Get the credential + */ + ixdr = (long *) msg->rm_call.cb_cred.oa_base; + cred->adc_namekind = IXDR_GET_ENUM (ixdr, enum authdes_namekind); + switch (cred->adc_namekind) + { + case ADN_FULLNAME: + namelen = IXDR_GET_U_LONG (ixdr); + if (namelen > MAXNETNAMELEN) + { + return AUTH_BADCRED; + } + cred->adc_fullname.name = area->area_netname; + bcopy ((char *) ixdr, cred->adc_fullname.name, + (u_int) namelen); + cred->adc_fullname.name[namelen] = 0; + ixdr += (RNDUP (namelen) / BYTES_PER_XDR_UNIT); + cred->adc_fullname.key.key.high = (u_long) * ixdr++; + cred->adc_fullname.key.key.low = (u_long) * ixdr++; + cred->adc_fullname.window = (u_long) * ixdr++; + break; + case ADN_NICKNAME: + cred->adc_nickname = (u_long) * ixdr++; + break; + default: + return AUTH_BADCRED; + } + + /* + * Get the verifier + */ + ixdr = (long *) msg->rm_call.cb_verf.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++; + + + /* + * Get the conversation key + */ + if (cred->adc_namekind == ADN_FULLNAME) + { + sessionkey = &cred->adc_fullname.key; + if (key_decryptsession (cred->adc_fullname.name, + sessionkey) < 0) + { + debug ("decryptsessionkey"); + return AUTH_BADCRED; /* key not found */ + } + } + else + { /* ADN_NICKNAME */ + sid = (short) cred->adc_nickname; + if (sid >= AUTHDES_CACHESZ) + { + debug ("bad nickname"); + return AUTH_BADCRED; /* garbled credential */ + } + sessionkey = &authdes_cache[sid].key; + } + + + /* + * Decrypt the timestamp + */ + cryptbuf[0] = verf.adv_xtimestamp; + if (cred->adc_namekind == ADN_FULLNAME) + { + cryptbuf[1].key.high = cred->adc_fullname.window; + cryptbuf[1].key.low = verf.adv_winverf; + ivec.key.high = ivec.key.low = 0; + status = cbc_crypt ((char *) sessionkey, (char *) cryptbuf, + 2 * sizeof (des_block), DES_DECRYPT | DES_HW, + (char *) &ivec); + } + else + { + status = ecb_crypt ((char *) sessionkey, (char *) cryptbuf, + sizeof (des_block), DES_DECRYPT | DES_HW); + } + if (DES_FAILED (status)) + { + debug ("decryption failure"); + return AUTH_FAILED; /* system error */ + } + + /* + * XDR the decrypted timestamp + */ + ixdr = (long *) cryptbuf; + timestamp.tv_sec = IXDR_GET_LONG (ixdr); + timestamp.tv_usec = IXDR_GET_LONG (ixdr); + + /* + * Check for valid credentials and verifiers. + * They could be invalid because the key was flushed + * out of the cache, and so a new session should begin. + * Be sure and send AUTH_REJECTED{CRED, VERF} if this is the case. + */ + { + struct timeval current; + int nick; + u_int winverf; + + if (cred->adc_namekind == ADN_FULLNAME) + { + window = IXDR_GET_U_LONG (ixdr); + winverf = IXDR_GET_U_LONG (ixdr); + if (winverf != window - 1) + { + debug ("window verifier mismatch"); + return AUTH_BADCRED; /* garbled credential */ + } + sid = cache_spot (sessionkey, cred->adc_fullname.name, + ×tamp); + if (sid < 0) + { + debug ("replayed credential"); + return AUTH_REJECTEDCRED; /* replay */ + } + nick = 0; + } + else + { /* ADN_NICKNAME */ + window = authdes_cache[sid].window; + nick = 1; + } + + if ((u_long) timestamp.tv_usec >= USEC_PER_SEC) + { + debug ("invalid usecs"); + /* cached out (bad key), or garbled verifier */ + return nick ? AUTH_REJECTEDVERF : AUTH_BADVERF; + } + if (nick && BEFORE (×tamp, + &authdes_cache[sid].laststamp)) + { + debug ("timestamp before last seen"); + return (AUTH_REJECTEDVERF); /* replay */ + } + gettimeofday (¤t, (struct timezone *) NULL); + current.tv_sec -= window; /* allow for expiration */ + if (!BEFORE (¤t, ×tamp)) + { + debug ("timestamp expired"); + /* replay, or garbled credential */ + return nick ? AUTH_REJECTEDVERF : AUTH_BADCRED; + } + } + + /* + * Set up the reply verifier + */ + verf.adv_nickname = (u_long) sid; + + /* + * xdr the timestamp before encrypting + */ + ixdr = (long *) cryptbuf; + IXDR_PUT_LONG (ixdr, timestamp.tv_sec - 1); + IXDR_PUT_LONG (ixdr, timestamp.tv_usec); + + /* + * encrypt the timestamp + */ + status = ecb_crypt ((char *) sessionkey, (char *) cryptbuf, + sizeof (des_block), DES_ENCRYPT | DES_HW); + if (DES_FAILED (status)) + { + debug ("encryption failure"); + return AUTH_FAILED; /* system error */ + } + verf.adv_xtimestamp = cryptbuf[0]; + + /* + * Serialize the reply verifier, and update rqst + */ + ixdr = (long *) msg->rm_call.cb_verf.oa_base; + *ixdr++ = (long) verf.adv_xtimestamp.key.high; + *ixdr++ = (long) verf.adv_xtimestamp.key.low; + *ixdr++ = (long) verf.adv_int_u; + + rqst->rq_xprt->xp_verf.oa_flavor = AUTH_DES; + rqst->rq_xprt->xp_verf.oa_base = msg->rm_call.cb_verf.oa_base; + rqst->rq_xprt->xp_verf.oa_length = + (char *) ixdr - msg->rm_call.cb_verf.oa_base; + + /* + * We succeeded, commit the data to the cache now and + * finish cooking the credential. + */ + entry = &authdes_cache[sid]; + entry->laststamp = timestamp; + cache_ref (sid); + if (cred->adc_namekind == ADN_FULLNAME) + { + cred->adc_fullname.window = window; + cred->adc_nickname = (u_long) sid; /* save nickname */ + if (entry->rname != NULL) + { + mem_free (entry->rname, strlen (entry->rname) + 1); + } + entry->rname = mem_alloc ((u_int) strlen (cred->adc_fullname.name) + + 1); + if (entry->rname != NULL) + { + strcpy (entry->rname, cred->adc_fullname.name); + } + else + { + debug ("out of memory"); + } + entry->key = *sessionkey; + entry->window = window; + invalidate (entry->localcred); /* mark any cached cred invalid */ + } + else + { /* ADN_NICKNAME */ + /* + * nicknames are cooked into fullnames + */ + cred->adc_namekind = ADN_FULLNAME; + cred->adc_fullname.name = entry->rname; + cred->adc_fullname.key = entry->key; + cred->adc_fullname.window = entry->window; + } + return AUTH_OK; /* we made it! */ +} + + +/* + * Initialize the cache + */ +static void +cache_init (void) +{ + register int i; + + authdes_cache = (struct cache_entry *) + mem_alloc (sizeof (struct cache_entry) * AUTHDES_CACHESZ); + bzero ((char *) authdes_cache, + sizeof (struct cache_entry) * AUTHDES_CACHESZ); + + authdes_lru = (short *) mem_alloc (sizeof (short) * AUTHDES_CACHESZ); + /* + * Initialize the lru list + */ + for (i = 0; i < AUTHDES_CACHESZ; i++) + { + authdes_lru[i] = i; + } +} + + +/* + * Find the lru victim + */ +static short +cache_victim (void) +{ + return (authdes_lru[AUTHDES_CACHESZ - 1]); +} + +/* + * Note that sid was referenced + */ +static void +cache_ref (register short sid) +{ + register int i; + register short curr; + register short prev; + + prev = authdes_lru[0]; + authdes_lru[0] = sid; + for (i = 1; prev != sid; i++) + { + curr = authdes_lru[i]; + authdes_lru[i] = prev; + prev = curr; + } +} + + +/* + * Find a spot in the cache for a credential containing + * the items given. Return -1 if a replay is detected, otherwise + * return the spot in the cache. + */ +static short +cache_spot (register des_block * key, char *name, struct timeval *timestamp) +{ + register struct cache_entry *cp; + register int i; + register u_long hi; + + hi = key->key.high; + for (cp = authdes_cache, i = 0; i < AUTHDES_CACHESZ; i++, cp++) + { + if (cp->key.key.high == hi && + cp->key.key.low == key->key.low && + cp->rname != NULL && + bcmp (cp->rname, name, strlen (name) + 1) == 0) + { + if (BEFORE (timestamp, &cp->laststamp)) + { + svcauthdes_stats.ncachereplays++; + return -1; /* replay */ + } + svcauthdes_stats.ncachehits++; + return i; /* refresh */ + } + } + svcauthdes_stats.ncachemisses++; + return cache_victim (); /* new credential */ +} + + +/* + * Local credential handling stuff. + * NOTE: bsd unix dependent. + * Other operating systems should put something else here. + */ +#define UNKNOWN -2 /* grouplen, if cached cred is unknown user */ +#define INVALID -1 /* grouplen, if cache entry is invalid */ + +struct bsdcred +{ + uid_t uid; /* cached uid */ + gid_t gid; /* cached gid */ + short grouplen; /* length of cached groups */ + gid_t groups[NGROUPS]; /* cached groups */ +}; + +/* + * Map a des credential into a unix cred. + * We cache the credential here so the application does + * not have to make an rpc call every time to interpret + * the credential. + */ +int +authdes_getucred (const struct authdes_cred *adc, uid_t * uid, gid_t * gid, + short *grouplen, gid_t * groups) +{ + unsigned sid; + register int i; + uid_t i_uid; + gid_t i_gid; + int i_grouplen; + struct bsdcred *cred; + + sid = adc->adc_nickname; + if (sid >= AUTHDES_CACHESZ) + { + debug ("invalid nickname"); + return 0; + } + cred = (struct bsdcred *) authdes_cache[sid].localcred; + if (cred == NULL) + { + cred = (struct bsdcred *) mem_alloc (sizeof (struct bsdcred)); + authdes_cache[sid].localcred = (char *) cred; + cred->grouplen = INVALID; + } + if (cred->grouplen == INVALID) + { + /* + * not in cache: lookup + */ + if (!netname2user (adc->adc_fullname.name, &i_uid, &i_gid, + &i_grouplen, groups)) + { + debug ("unknown netname"); + cred->grouplen = UNKNOWN; /* mark as lookup up, but not found */ + return 0; + } + debug ("missed ucred cache"); + *uid = cred->uid = i_uid; + *gid = cred->gid = i_gid; + *grouplen = cred->grouplen = i_grouplen; + for (i = i_grouplen - 1; i >= 0; i--) + { + cred->groups[i] = groups[i]; /* int to short */ + } + return 1; + } + else if (cred->grouplen == UNKNOWN) + { + /* + * Already lookup up, but no match found + */ + return 0; + } + + /* + * cached credentials + */ + *uid = cred->uid; + *gid = cred->gid; + *grouplen = cred->grouplen; + for (i = cred->grouplen - 1; i >= 0; i--) + { + groups[i] = cred->groups[i]; /* short to int */ + } + return 1; +} + +static void +invalidate (char *cred) +{ + if (cred == NULL) + { + return; + } + ((struct bsdcred *) cred)->grouplen = INVALID; +} diff --git a/sunrpc/xcrypt.c b/sunrpc/xcrypt.c new file mode 100644 index 0000000..97c30d1 --- /dev/null +++ b/sunrpc/xcrypt.c @@ -0,0 +1,180 @@ +/* + * 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) 1986-1991 by Sun Microsystems Inc. + */ + +#ident "@(#)xcrypt.c 1.11 94/08/23 SMI" + +#if !defined(lint) && defined(SCCSIDS) +static char sccsid[] = "@(#)xcrypt.c 1.3 89/03/24 Copyr 1986 Sun Micro"; +#endif + +/* + * xcrypt.c: Hex encryption/decryption and utility routines + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/types.h> +#include <rpc/des_crypt.h> + +static char hex[16] = +{ + '0', '1', '2', '3', '4', '5', '6', '7', + '8', '9', 'a', 'b', 'c', 'd', 'e', 'f', +}; + +static char hexval (char); +static void hex2bin (int, char *, char *); +static void bin2hex (int, unsigned char *, char *); +void passwd2des (char *pw, char *key); + +/* + * Encrypt a secret key given passwd + * The secret key is passed and returned in hex notation. + * Its length must be a multiple of 16 hex digits (64 bits). + */ +int +xencrypt (char *secret, char *passwd) +{ + char key[8]; + char ivec[8]; + char *buf; + int err; + int len; + + len = strlen (secret) / 2; + buf = malloc ((unsigned) len); + hex2bin (len, secret, buf); + passwd2des (passwd, key); + memset (ivec, 0, 8); + + err = cbc_crypt (key, buf, len, DES_ENCRYPT | DES_HW, ivec); + if (DES_FAILED (err)) + { + free (buf); + return 0; + } + bin2hex (len, (unsigned char *) buf, secret); + free (buf); + return 1; +} + +/* + * Decrypt secret key using passwd + * The secret key is passed and returned in hex notation. + * Once again, the length is a multiple of 16 hex digits + */ +int +xdecrypt (char *secret, char *passwd) +{ + char key[8]; + char ivec[8]; + char *buf; + int err; + int len; + + len = strlen (secret) / 2; + buf = malloc ((unsigned) len); + + hex2bin (len, secret, buf); + passwd2des (passwd, key); + memset (ivec, 0, 8); + + err = cbc_crypt (key, buf, len, DES_DECRYPT | DES_HW, ivec); + if (DES_FAILED (err)) + { + free (buf); + return 0; + } + bin2hex (len, (unsigned char *) buf, secret); + free (buf); + return 1; +} + +/* + * Turn password into DES key + */ +void +passwd2des (char *pw, char *key) +{ + int i; + + memset (key, 0, 8); + for (i = 0; *pw; i = (i + 1) % 8) + key[i] ^= *pw++ << 1; + + des_setparity (key); +} + +/* + * Hex to binary conversion + */ +static void +hex2bin (int len, char *hexnum, char *binnum) +{ + int i; + + for (i = 0; i < len; i++) + *binnum++ = 16 * hexval (hexnum[2 * i]) + hexval (hexnum[2 * i + 1]); +} + +/* + * Binary to hex conversion + */ +static void +bin2hex (int len, unsigned char *binnum, char *hexnum) +{ + int i; + unsigned val; + + for (i = 0; i < len; i++) + { + val = binnum[i]; + hexnum[i * 2] = hex[val >> 4]; + hexnum[i * 2 + 1] = hex[val & 0xf]; + } + hexnum[len * 2] = 0; +} + +static char +hexval (char c) +{ + if (c >= '0' && c <= '9') + return (c - '0'); + else if (c >= 'a' && c <= 'z') + return (c - 'a' + 10); + else if (c >= 'A' && c <= 'Z') + return (c - 'A' + 10); + else + return -1; +} |