822 lines
19 KiB
C
822 lines
19 KiB
C
/*
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* Sun RPC is a product of Sun Microsystems, Inc. and is provided for
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* unrestricted use provided that this legend is included on all tape
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* media and as a part of the software program in whole or part. Users
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* may copy or modify Sun RPC without charge, but are not authorized
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* to license or distribute it to anyone else except as part of a product or
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* program developed by the user.
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*
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* SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
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* WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
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*
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* Sun RPC is provided with no support and without any obligation on the
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* part of Sun Microsystems, Inc. to assist in its use, correction,
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* modification or enhancement.
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*
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* SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
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* INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
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* OR ANY PART THEREOF.
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*
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* In no event will Sun Microsystems, Inc. be liable for any lost revenue
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* or profits or other special, indirect and consequential damages, even if
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* Sun has been advised of the possibility of such damages.
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*
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* Sun Microsystems, Inc.
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* 2550 Garcia Avenue
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* Mountain View, California 94043
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*/
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)keyserv.c 1.15 94/04/25 SMI";
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#endif
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static const char rcsid[] =
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"$FreeBSD$";
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#endif /* not lint */
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/*
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* Copyright (c) 1986 - 1991 by Sun Microsystems, Inc.
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*/
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/*
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* Keyserver
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* Store secret keys per uid. Do public key encryption and decryption
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* operations. Generate "random" keys.
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* Do not talk to anything but a local root
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* process on the local transport only
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*/
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#include <err.h>
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#include <pwd.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <rpc/rpc.h>
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#include <sys/param.h>
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#include <sys/file.h>
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#include <rpc/des_crypt.h>
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#include <rpc/des.h>
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#include <rpc/key_prot.h>
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#include <rpcsvc/crypt.h>
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#include "keyserv.h"
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#ifndef NGROUPS
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#define NGROUPS 16
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#endif
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#ifndef KEYSERVSOCK
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#define KEYSERVSOCK "/var/run/keyservsock"
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#endif
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static void randomize( des_block * );
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static void usage( void );
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static int getrootkey( des_block *, int );
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static int root_auth( SVCXPRT *, struct svc_req * );
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#ifdef DEBUG
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static int debugging = 1;
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#else
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static int debugging = 0;
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#endif
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static void keyprogram();
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static des_block masterkey;
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char *getenv();
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static char ROOTKEY[] = "/etc/.rootkey";
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/*
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* Hack to allow the keyserver to use AUTH_DES (for authenticated
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* NIS+ calls, for example). The only functions that get called
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* are key_encryptsession_pk, key_decryptsession_pk, and key_gendes.
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*
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* The approach is to have the keyserver fill in pointers to local
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* implementations of these functions, and to call those in key_call().
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*/
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extern cryptkeyres *(*__key_encryptsession_pk_LOCAL)();
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extern cryptkeyres *(*__key_decryptsession_pk_LOCAL)();
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extern des_block *(*__key_gendes_LOCAL)();
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extern int (*__des_crypt_LOCAL)();
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cryptkeyres *key_encrypt_pk_2_svc_prog( uid_t, cryptkeyarg2 * );
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cryptkeyres *key_decrypt_pk_2_svc_prog( uid_t, cryptkeyarg2 * );
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des_block *key_gen_1_svc_prog( void *, struct svc_req * );
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int
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main(argc, argv)
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int argc;
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char *argv[];
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{
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int nflag = 0;
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int c;
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int warn = 0;
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char *path = NULL;
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void *localhandle;
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register SVCXPRT *transp;
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struct netconfig *nconf = NULL;
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__key_encryptsession_pk_LOCAL = &key_encrypt_pk_2_svc_prog;
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__key_decryptsession_pk_LOCAL = &key_decrypt_pk_2_svc_prog;
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__key_gendes_LOCAL = &key_gen_1_svc_prog;
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while ((c = getopt(argc, argv, "ndDvp:")) != -1)
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switch (c) {
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case 'n':
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nflag++;
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break;
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case 'd':
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pk_nodefaultkeys();
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break;
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case 'D':
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debugging = 1;
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break;
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case 'v':
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warn = 1;
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break;
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case 'p':
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path = optarg;
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break;
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default:
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usage();
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}
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load_des(warn, path);
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__des_crypt_LOCAL = _my_crypt;
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if (svc_auth_reg(AUTH_DES, _svcauth_des) == -1)
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errx(1, "failed to register AUTH_DES authenticator");
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if (optind != argc) {
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usage();
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}
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/*
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* Initialize
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*/
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(void) umask(S_IXUSR|S_IXGRP|S_IXOTH);
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if (geteuid() != 0)
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errx(1, "keyserv must be run as root");
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setmodulus(HEXMODULUS);
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getrootkey(&masterkey, nflag);
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rpcb_unset(KEY_PROG, KEY_VERS, NULL);
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rpcb_unset(KEY_PROG, KEY_VERS2, NULL);
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if (svc_create(keyprogram, KEY_PROG, KEY_VERS,
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"netpath") == 0) {
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(void) fprintf(stderr,
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"%s: unable to create service\n", argv[0]);
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exit(1);
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}
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if (svc_create(keyprogram, KEY_PROG, KEY_VERS2,
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"netpath") == 0) {
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(void) fprintf(stderr,
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"%s: unable to create service\n", argv[0]);
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exit(1);
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}
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localhandle = setnetconfig();
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while ((nconf = getnetconfig(localhandle)) != NULL) {
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if (nconf->nc_protofmly != NULL &&
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strcmp(nconf->nc_protofmly, NC_LOOPBACK) == 0)
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break;
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}
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if (nconf == NULL)
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errx(1, "getnetconfig: %s", nc_sperror());
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unlink(KEYSERVSOCK);
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rpcb_unset(CRYPT_PROG, CRYPT_VERS, nconf);
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transp = svcunix_create(RPC_ANYSOCK, 0, 0, KEYSERVSOCK);
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if (transp == NULL)
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errx(1, "cannot create AF_LOCAL service");
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if (!svc_reg(transp, KEY_PROG, KEY_VERS, keyprogram, nconf))
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errx(1, "unable to register (KEY_PROG, KEY_VERS, unix)");
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if (!svc_reg(transp, KEY_PROG, KEY_VERS2, keyprogram, nconf))
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errx(1, "unable to register (KEY_PROG, KEY_VERS2, unix)");
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if (!svc_reg(transp, CRYPT_PROG, CRYPT_VERS, crypt_prog_1, nconf))
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errx(1, "unable to register (CRYPT_PROG, CRYPT_VERS, unix)");
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endnetconfig(localhandle);
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(void) umask(066); /* paranoia */
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if (!debugging) {
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daemon(0,0);
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}
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signal(SIGPIPE, SIG_IGN);
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svc_run();
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abort();
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/* NOTREACHED */
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}
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/*
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* In the event that we don't get a root password, we try to
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* randomize the master key the best we can
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*/
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static void
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randomize(master)
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des_block *master;
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{
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#ifndef __FreeBSD__
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int i;
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int seed;
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struct timeval tv;
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int shift;
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seed = 0;
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for (i = 0; i < 1024; i++) {
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(void)gettimeofday(&tv, NULL);
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shift = i % 8 * sizeof (int);
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seed ^= (tv.tv_usec << shift) | (tv.tv_usec >> (32 - shift));
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}
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#endif
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#ifdef KEYSERV_RANDOM
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#ifdef __FreeBSD__
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master->key.low = arc4random();
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master->key.high = arc4random();
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#else
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srandom(seed);
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master->key.low = random();
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master->key.high = random();
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#endif
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#else
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/* use stupid dangerous bad rand() */
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#ifdef __FreeBSD__
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sranddev();
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#else
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srand(seed);
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#endif
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master->key.low = rand();
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master->key.high = rand();
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#endif
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}
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/*
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* Try to get root's secret key, by prompting if terminal is a tty, else trying
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* from standard input.
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* Returns 1 on success.
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*/
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static int
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getrootkey(master, prompt)
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des_block *master;
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int prompt;
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{
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char *passwd;
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char name[MAXNETNAMELEN + 1];
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char secret[HEXKEYBYTES];
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key_netstarg netstore;
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int fd;
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if (!prompt) {
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/*
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* Read secret key out of ROOTKEY
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*/
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fd = open(ROOTKEY, O_RDONLY, 0);
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if (fd < 0) {
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randomize(master);
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return (0);
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}
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if (read(fd, secret, HEXKEYBYTES) < HEXKEYBYTES) {
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warnx("the key read from %s was too short", ROOTKEY);
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(void) close(fd);
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return (0);
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}
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(void) close(fd);
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if (!getnetname(name)) {
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warnx(
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"failed to generate host's netname when establishing root's key");
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return (0);
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}
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memcpy(netstore.st_priv_key, secret, HEXKEYBYTES);
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memset(netstore.st_pub_key, 0, HEXKEYBYTES);
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netstore.st_netname = name;
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if (pk_netput(0, &netstore) != KEY_SUCCESS) {
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warnx("could not set root's key and netname");
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return (0);
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}
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return (1);
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}
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/*
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* Decrypt yellow pages publickey entry to get secret key
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*/
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passwd = getpass("root password:");
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passwd2des(passwd, (char *)master);
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getnetname(name);
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if (!getsecretkey(name, secret, passwd)) {
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warnx("can't find %s's secret key", name);
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return (0);
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}
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if (secret[0] == 0) {
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warnx("password does not decrypt secret key for %s", name);
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return (0);
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}
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(void) pk_setkey(0, secret);
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/*
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* Store it for future use in $ROOTKEY, if possible
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*/
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fd = open(ROOTKEY, O_WRONLY|O_TRUNC|O_CREAT, 0);
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if (fd > 0) {
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char newline = '\n';
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write(fd, secret, strlen(secret));
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write(fd, &newline, sizeof (newline));
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close(fd);
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}
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return (1);
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}
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/*
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* Procedures to implement RPC service
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*/
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char *
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strstatus(status)
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keystatus status;
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{
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switch (status) {
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case KEY_SUCCESS:
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return ("KEY_SUCCESS");
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case KEY_NOSECRET:
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return ("KEY_NOSECRET");
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case KEY_UNKNOWN:
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return ("KEY_UNKNOWN");
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case KEY_SYSTEMERR:
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return ("KEY_SYSTEMERR");
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default:
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return ("(bad result code)");
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}
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}
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keystatus *
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key_set_1_svc_prog(uid, key)
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uid_t uid;
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keybuf key;
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{
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static keystatus status;
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if (debugging) {
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(void) fprintf(stderr, "set(%u, %.*s) = ", uid,
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(int) sizeof (keybuf), key);
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}
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status = pk_setkey(uid, key);
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if (debugging) {
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(void) fprintf(stderr, "%s\n", strstatus(status));
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(void) fflush(stderr);
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}
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return (&status);
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}
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cryptkeyres *
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key_encrypt_pk_2_svc_prog(uid, arg)
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uid_t uid;
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cryptkeyarg2 *arg;
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{
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static cryptkeyres res;
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if (debugging) {
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(void) fprintf(stderr, "encrypt(%u, %s, %08x%08x) = ", uid,
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arg->remotename, arg->deskey.key.high,
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arg->deskey.key.low);
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}
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res.cryptkeyres_u.deskey = arg->deskey;
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res.status = pk_encrypt(uid, arg->remotename, &(arg->remotekey),
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&res.cryptkeyres_u.deskey);
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if (debugging) {
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if (res.status == KEY_SUCCESS) {
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(void) fprintf(stderr, "%08x%08x\n",
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res.cryptkeyres_u.deskey.key.high,
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res.cryptkeyres_u.deskey.key.low);
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} else {
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(void) fprintf(stderr, "%s\n", strstatus(res.status));
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}
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(void) fflush(stderr);
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}
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return (&res);
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}
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cryptkeyres *
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key_decrypt_pk_2_svc_prog(uid, arg)
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uid_t uid;
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cryptkeyarg2 *arg;
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{
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static cryptkeyres res;
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if (debugging) {
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(void) fprintf(stderr, "decrypt(%u, %s, %08x%08x) = ", uid,
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arg->remotename, arg->deskey.key.high,
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arg->deskey.key.low);
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}
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res.cryptkeyres_u.deskey = arg->deskey;
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res.status = pk_decrypt(uid, arg->remotename, &(arg->remotekey),
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&res.cryptkeyres_u.deskey);
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if (debugging) {
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if (res.status == KEY_SUCCESS) {
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(void) fprintf(stderr, "%08x%08x\n",
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res.cryptkeyres_u.deskey.key.high,
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res.cryptkeyres_u.deskey.key.low);
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} else {
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(void) fprintf(stderr, "%s\n", strstatus(res.status));
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}
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(void) fflush(stderr);
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}
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return (&res);
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}
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keystatus *
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key_net_put_2_svc_prog(uid, arg)
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uid_t uid;
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key_netstarg *arg;
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{
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static keystatus status;
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if (debugging) {
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(void) fprintf(stderr, "net_put(%s, %.*s, %.*s) = ",
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arg->st_netname, (int)sizeof (arg->st_pub_key),
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arg->st_pub_key, (int)sizeof (arg->st_priv_key),
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arg->st_priv_key);
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}
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status = pk_netput(uid, arg);
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if (debugging) {
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(void) fprintf(stderr, "%s\n", strstatus(status));
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(void) fflush(stderr);
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}
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return (&status);
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}
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key_netstres *
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key_net_get_2_svc_prog(uid, arg)
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uid_t uid;
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void *arg;
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{
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static key_netstres keynetname;
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if (debugging)
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(void) fprintf(stderr, "net_get(%u) = ", uid);
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keynetname.status = pk_netget(uid, &keynetname.key_netstres_u.knet);
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if (debugging) {
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if (keynetname.status == KEY_SUCCESS) {
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fprintf(stderr, "<%s, %.*s, %.*s>\n",
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keynetname.key_netstres_u.knet.st_netname,
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(int)sizeof (keynetname.key_netstres_u.knet.st_pub_key),
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keynetname.key_netstres_u.knet.st_pub_key,
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(int)sizeof (keynetname.key_netstres_u.knet.st_priv_key),
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keynetname.key_netstres_u.knet.st_priv_key);
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} else {
|
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(void) fprintf(stderr, "NOT FOUND\n");
|
|
}
|
|
(void) fflush(stderr);
|
|
}
|
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|
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return (&keynetname);
|
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|
|
}
|
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|
|
cryptkeyres *
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key_get_conv_2_svc_prog(uid, arg)
|
|
uid_t uid;
|
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keybuf arg;
|
|
{
|
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static cryptkeyres res;
|
|
|
|
if (debugging)
|
|
(void) fprintf(stderr, "get_conv(%u, %.*s) = ", uid,
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(int)sizeof (keybuf), arg);
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|
|
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res.status = pk_get_conv_key(uid, arg, &res);
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|
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if (debugging) {
|
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if (res.status == KEY_SUCCESS) {
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(void) fprintf(stderr, "%08x%08x\n",
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res.cryptkeyres_u.deskey.key.high,
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res.cryptkeyres_u.deskey.key.low);
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|
} else {
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|
(void) fprintf(stderr, "%s\n", strstatus(res.status));
|
|
}
|
|
(void) fflush(stderr);
|
|
}
|
|
return (&res);
|
|
}
|
|
|
|
|
|
cryptkeyres *
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key_encrypt_1_svc_prog(uid, arg)
|
|
uid_t uid;
|
|
cryptkeyarg *arg;
|
|
{
|
|
static cryptkeyres res;
|
|
|
|
if (debugging) {
|
|
(void) fprintf(stderr, "encrypt(%u, %s, %08x%08x) = ", uid,
|
|
arg->remotename, arg->deskey.key.high,
|
|
arg->deskey.key.low);
|
|
}
|
|
res.cryptkeyres_u.deskey = arg->deskey;
|
|
res.status = pk_encrypt(uid, arg->remotename, NULL,
|
|
&res.cryptkeyres_u.deskey);
|
|
if (debugging) {
|
|
if (res.status == KEY_SUCCESS) {
|
|
(void) fprintf(stderr, "%08x%08x\n",
|
|
res.cryptkeyres_u.deskey.key.high,
|
|
res.cryptkeyres_u.deskey.key.low);
|
|
} else {
|
|
(void) fprintf(stderr, "%s\n", strstatus(res.status));
|
|
}
|
|
(void) fflush(stderr);
|
|
}
|
|
return (&res);
|
|
}
|
|
|
|
cryptkeyres *
|
|
key_decrypt_1_svc_prog(uid, arg)
|
|
uid_t uid;
|
|
cryptkeyarg *arg;
|
|
{
|
|
static cryptkeyres res;
|
|
|
|
if (debugging) {
|
|
(void) fprintf(stderr, "decrypt(%u, %s, %08x%08x) = ", uid,
|
|
arg->remotename, arg->deskey.key.high,
|
|
arg->deskey.key.low);
|
|
}
|
|
res.cryptkeyres_u.deskey = arg->deskey;
|
|
res.status = pk_decrypt(uid, arg->remotename, NULL,
|
|
&res.cryptkeyres_u.deskey);
|
|
if (debugging) {
|
|
if (res.status == KEY_SUCCESS) {
|
|
(void) fprintf(stderr, "%08x%08x\n",
|
|
res.cryptkeyres_u.deskey.key.high,
|
|
res.cryptkeyres_u.deskey.key.low);
|
|
} else {
|
|
(void) fprintf(stderr, "%s\n", strstatus(res.status));
|
|
}
|
|
(void) fflush(stderr);
|
|
}
|
|
return (&res);
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
des_block *
|
|
key_gen_1_svc_prog(v, s)
|
|
void *v;
|
|
struct svc_req *s;
|
|
{
|
|
struct timeval time;
|
|
static des_block keygen;
|
|
static des_block key;
|
|
|
|
(void)gettimeofday(&time, NULL);
|
|
keygen.key.high += (time.tv_sec ^ time.tv_usec);
|
|
keygen.key.low += (time.tv_sec ^ time.tv_usec);
|
|
ecb_crypt((char *)&masterkey, (char *)&keygen, sizeof (keygen),
|
|
DES_ENCRYPT | DES_HW);
|
|
key = keygen;
|
|
des_setparity((char *)&key);
|
|
if (debugging) {
|
|
(void) fprintf(stderr, "gen() = %08x%08x\n", key.key.high,
|
|
key.key.low);
|
|
(void) fflush(stderr);
|
|
}
|
|
return (&key);
|
|
}
|
|
|
|
getcredres *
|
|
key_getcred_1_svc_prog(uid, name)
|
|
uid_t uid;
|
|
netnamestr *name;
|
|
{
|
|
static getcredres res;
|
|
static u_int gids[NGROUPS];
|
|
struct unixcred *cred;
|
|
|
|
cred = &res.getcredres_u.cred;
|
|
cred->gids.gids_val = gids;
|
|
if (!netname2user(*name, (uid_t *) &cred->uid, (gid_t *) &cred->gid,
|
|
(int *)&cred->gids.gids_len, (gid_t *)gids)) {
|
|
res.status = KEY_UNKNOWN;
|
|
} else {
|
|
res.status = KEY_SUCCESS;
|
|
}
|
|
if (debugging) {
|
|
(void) fprintf(stderr, "getcred(%s) = ", *name);
|
|
if (res.status == KEY_SUCCESS) {
|
|
(void) fprintf(stderr, "uid=%d, gid=%d, grouplen=%d\n",
|
|
cred->uid, cred->gid, cred->gids.gids_len);
|
|
} else {
|
|
(void) fprintf(stderr, "%s\n", strstatus(res.status));
|
|
}
|
|
(void) fflush(stderr);
|
|
}
|
|
return (&res);
|
|
}
|
|
|
|
/*
|
|
* RPC boilerplate
|
|
*/
|
|
static void
|
|
keyprogram(rqstp, transp)
|
|
struct svc_req *rqstp;
|
|
SVCXPRT *transp;
|
|
{
|
|
union {
|
|
keybuf key_set_1_arg;
|
|
cryptkeyarg key_encrypt_1_arg;
|
|
cryptkeyarg key_decrypt_1_arg;
|
|
netnamestr key_getcred_1_arg;
|
|
cryptkeyarg key_encrypt_2_arg;
|
|
cryptkeyarg key_decrypt_2_arg;
|
|
netnamestr key_getcred_2_arg;
|
|
cryptkeyarg2 key_encrypt_pk_2_arg;
|
|
cryptkeyarg2 key_decrypt_pk_2_arg;
|
|
key_netstarg key_net_put_2_arg;
|
|
netobj key_get_conv_2_arg;
|
|
} argument;
|
|
char *result;
|
|
xdrproc_t xdr_argument, xdr_result;
|
|
char *(*local) ();
|
|
uid_t uid = -1;
|
|
int check_auth;
|
|
|
|
switch (rqstp->rq_proc) {
|
|
case NULLPROC:
|
|
svc_sendreply(transp, (xdrproc_t)xdr_void, NULL);
|
|
return;
|
|
|
|
case KEY_SET:
|
|
xdr_argument = (xdrproc_t)xdr_keybuf;
|
|
xdr_result = (xdrproc_t)xdr_int;
|
|
local = (char *(*)()) key_set_1_svc_prog;
|
|
check_auth = 1;
|
|
break;
|
|
|
|
case KEY_ENCRYPT:
|
|
xdr_argument = (xdrproc_t)xdr_cryptkeyarg;
|
|
xdr_result = (xdrproc_t)xdr_cryptkeyres;
|
|
local = (char *(*)()) key_encrypt_1_svc_prog;
|
|
check_auth = 1;
|
|
break;
|
|
|
|
case KEY_DECRYPT:
|
|
xdr_argument = (xdrproc_t)xdr_cryptkeyarg;
|
|
xdr_result = (xdrproc_t)xdr_cryptkeyres;
|
|
local = (char *(*)()) key_decrypt_1_svc_prog;
|
|
check_auth = 1;
|
|
break;
|
|
|
|
case KEY_GEN:
|
|
xdr_argument = (xdrproc_t)xdr_void;
|
|
xdr_result = (xdrproc_t)xdr_des_block;
|
|
local = (char *(*)()) key_gen_1_svc_prog;
|
|
check_auth = 0;
|
|
break;
|
|
|
|
case KEY_GETCRED:
|
|
xdr_argument = (xdrproc_t)xdr_netnamestr;
|
|
xdr_result = (xdrproc_t)xdr_getcredres;
|
|
local = (char *(*)()) key_getcred_1_svc_prog;
|
|
check_auth = 0;
|
|
break;
|
|
|
|
case KEY_ENCRYPT_PK:
|
|
xdr_argument = (xdrproc_t)xdr_cryptkeyarg2;
|
|
xdr_result = (xdrproc_t)xdr_cryptkeyres;
|
|
local = (char *(*)()) key_encrypt_pk_2_svc_prog;
|
|
check_auth = 1;
|
|
break;
|
|
|
|
case KEY_DECRYPT_PK:
|
|
xdr_argument = (xdrproc_t)xdr_cryptkeyarg2;
|
|
xdr_result = (xdrproc_t)xdr_cryptkeyres;
|
|
local = (char *(*)()) key_decrypt_pk_2_svc_prog;
|
|
check_auth = 1;
|
|
break;
|
|
|
|
|
|
case KEY_NET_PUT:
|
|
xdr_argument = (xdrproc_t)xdr_key_netstarg;
|
|
xdr_result = (xdrproc_t)xdr_keystatus;
|
|
local = (char *(*)()) key_net_put_2_svc_prog;
|
|
check_auth = 1;
|
|
break;
|
|
|
|
case KEY_NET_GET:
|
|
xdr_argument = (xdrproc_t) xdr_void;
|
|
xdr_result = (xdrproc_t)xdr_key_netstres;
|
|
local = (char *(*)()) key_net_get_2_svc_prog;
|
|
check_auth = 1;
|
|
break;
|
|
|
|
case KEY_GET_CONV:
|
|
xdr_argument = (xdrproc_t) xdr_keybuf;
|
|
xdr_result = (xdrproc_t)xdr_cryptkeyres;
|
|
local = (char *(*)()) key_get_conv_2_svc_prog;
|
|
check_auth = 1;
|
|
break;
|
|
|
|
default:
|
|
svcerr_noproc(transp);
|
|
return;
|
|
}
|
|
if (check_auth) {
|
|
if (root_auth(transp, rqstp) == 0) {
|
|
if (debugging) {
|
|
(void) fprintf(stderr,
|
|
"not local privileged process\n");
|
|
}
|
|
svcerr_weakauth(transp);
|
|
return;
|
|
}
|
|
if (rqstp->rq_cred.oa_flavor != AUTH_SYS) {
|
|
if (debugging) {
|
|
(void) fprintf(stderr,
|
|
"not unix authentication\n");
|
|
}
|
|
svcerr_weakauth(transp);
|
|
return;
|
|
}
|
|
uid = ((struct authsys_parms *)rqstp->rq_clntcred)->aup_uid;
|
|
}
|
|
|
|
memset(&argument, 0, sizeof (argument));
|
|
if (!svc_getargs(transp, xdr_argument, &argument)) {
|
|
svcerr_decode(transp);
|
|
return;
|
|
}
|
|
result = (*local) (uid, &argument);
|
|
if (!svc_sendreply(transp, xdr_result, result)) {
|
|
if (debugging)
|
|
(void) fprintf(stderr, "unable to reply\n");
|
|
svcerr_systemerr(transp);
|
|
}
|
|
if (!svc_freeargs(transp, xdr_argument, &argument)) {
|
|
if (debugging)
|
|
(void) fprintf(stderr,
|
|
"unable to free arguments\n");
|
|
exit(1);
|
|
}
|
|
return;
|
|
}
|
|
|
|
static int
|
|
root_auth(trans, rqstp)
|
|
SVCXPRT *trans;
|
|
struct svc_req *rqstp;
|
|
{
|
|
uid_t uid;
|
|
struct sockaddr *remote;
|
|
|
|
remote = svc_getrpccaller(trans)->buf;
|
|
if (remote->sa_family != AF_UNIX) {
|
|
if (debugging)
|
|
fprintf(stderr, "client didn't use AF_UNIX\n");
|
|
return (0);
|
|
}
|
|
|
|
if (__rpc_get_local_uid(trans, &uid) < 0) {
|
|
if (debugging)
|
|
fprintf(stderr, "__rpc_get_local_uid failed\n");
|
|
return (0);
|
|
}
|
|
|
|
if (debugging)
|
|
fprintf(stderr, "local_uid %u\n", uid);
|
|
if (uid == 0)
|
|
return (1);
|
|
if (rqstp->rq_cred.oa_flavor == AUTH_SYS) {
|
|
if (((uid_t) ((struct authunix_parms *)
|
|
rqstp->rq_clntcred)->aup_uid)
|
|
== uid) {
|
|
return (1);
|
|
} else {
|
|
if (debugging)
|
|
fprintf(stderr,
|
|
"local_uid %u mismatches auth %u\n", uid,
|
|
((uid_t) ((struct authunix_parms *)rqstp->rq_clntcred)->aup_uid));
|
|
return (0);
|
|
}
|
|
} else {
|
|
if (debugging)
|
|
fprintf(stderr, "Not auth sys\n");
|
|
return (0);
|
|
}
|
|
}
|
|
|
|
static void
|
|
usage()
|
|
{
|
|
(void) fprintf(stderr,
|
|
"usage: keyserv [-n] [-D] [-d] [-v] [-p path]\n");
|
|
(void) fprintf(stderr, "-d disables the use of default keys\n");
|
|
exit(1);
|
|
}
|