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-rw-r--r--usr.sbin/keyserv/keyserv.c821
1 files changed, 821 insertions, 0 deletions
diff --git a/usr.sbin/keyserv/keyserv.c b/usr.sbin/keyserv/keyserv.c
new file mode 100644
index 0000000..79bf90d
--- /dev/null
+++ b/usr.sbin/keyserv/keyserv.c
@@ -0,0 +1,821 @@
+/*
+ * 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 lint
+#if 0
+static char sccsid[] = "@(#)keyserv.c 1.15 94/04/25 SMI";
+#endif
+static const char rcsid[] =
+ "$FreeBSD$";
+#endif /* not lint */
+
+/*
+ * Copyright (c) 1986 - 1991 by Sun Microsystems, Inc.
+ */
+
+/*
+ * Keyserver
+ * Store secret keys per uid. Do public key encryption and decryption
+ * operations. Generate "random" keys.
+ * Do not talk to anything but a local root
+ * process on the local transport only
+ */
+
+#include <err.h>
+#include <pwd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <rpc/rpc.h>
+#include <sys/param.h>
+#include <sys/file.h>
+#include <rpc/des_crypt.h>
+#include <rpc/des.h>
+#include <rpc/key_prot.h>
+#include <rpcsvc/crypt.h>
+#include "keyserv.h"
+
+#ifndef NGROUPS
+#define NGROUPS 16
+#endif
+
+#ifndef KEYSERVSOCK
+#define KEYSERVSOCK "/var/run/keyservsock"
+#endif
+
+static void randomize( des_block * );
+static void usage( void );
+static int getrootkey( des_block *, int );
+static int root_auth( SVCXPRT *, struct svc_req * );
+
+#ifdef DEBUG
+static int debugging = 1;
+#else
+static int debugging = 0;
+#endif
+
+static void keyprogram();
+static des_block masterkey;
+char *getenv();
+static char ROOTKEY[] = "/etc/.rootkey";
+
+/*
+ * 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().
+ */
+
+extern cryptkeyres *(*__key_encryptsession_pk_LOCAL)();
+extern cryptkeyres *(*__key_decryptsession_pk_LOCAL)();
+extern des_block *(*__key_gendes_LOCAL)();
+extern int (*__des_crypt_LOCAL)();
+
+cryptkeyres *key_encrypt_pk_2_svc_prog( uid_t, cryptkeyarg2 * );
+cryptkeyres *key_decrypt_pk_2_svc_prog( uid_t, cryptkeyarg2 * );
+des_block *key_gen_1_svc_prog( void *, struct svc_req * );
+
+int
+main(argc, argv)
+ int argc;
+ char *argv[];
+{
+ int nflag = 0;
+ int c;
+ int warn = 0;
+ char *path = NULL;
+ void *localhandle;
+ register SVCXPRT *transp;
+ struct netconfig *nconf = NULL;
+
+ __key_encryptsession_pk_LOCAL = &key_encrypt_pk_2_svc_prog;
+ __key_decryptsession_pk_LOCAL = &key_decrypt_pk_2_svc_prog;
+ __key_gendes_LOCAL = &key_gen_1_svc_prog;
+
+ while ((c = getopt(argc, argv, "ndDvp:")) != -1)
+ switch (c) {
+ case 'n':
+ nflag++;
+ break;
+ case 'd':
+ pk_nodefaultkeys();
+ break;
+ case 'D':
+ debugging = 1;
+ break;
+ case 'v':
+ warn = 1;
+ break;
+ case 'p':
+ path = optarg;
+ break;
+ default:
+ usage();
+ }
+
+ load_des(warn, path);
+ __des_crypt_LOCAL = _my_crypt;
+ if (svc_auth_reg(AUTH_DES, _svcauth_des) == -1)
+ errx(1, "failed to register AUTH_DES authenticator");
+
+ if (optind != argc) {
+ usage();
+ }
+
+ /*
+ * Initialize
+ */
+ (void) umask(S_IXUSR|S_IXGRP|S_IXOTH);
+ if (geteuid() != 0)
+ errx(1, "keyserv must be run as root");
+ setmodulus(HEXMODULUS);
+ getrootkey(&masterkey, nflag);
+
+ rpcb_unset(KEY_PROG, KEY_VERS, NULL);
+ rpcb_unset(KEY_PROG, KEY_VERS2, NULL);
+
+ if (svc_create(keyprogram, KEY_PROG, KEY_VERS,
+ "netpath") == 0) {
+ (void) fprintf(stderr,
+ "%s: unable to create service\n", argv[0]);
+ exit(1);
+ }
+
+ if (svc_create(keyprogram, KEY_PROG, KEY_VERS2,
+ "netpath") == 0) {
+ (void) fprintf(stderr,
+ "%s: unable to create service\n", argv[0]);
+ exit(1);
+ }
+
+ localhandle = setnetconfig();
+ while ((nconf = getnetconfig(localhandle)) != NULL) {
+ if (nconf->nc_protofmly != NULL &&
+ strcmp(nconf->nc_protofmly, NC_LOOPBACK) == 0)
+ break;
+ }
+
+ if (nconf == NULL)
+ errx(1, "getnetconfig: %s", nc_sperror());
+
+ unlink(KEYSERVSOCK);
+ rpcb_unset(CRYPT_PROG, CRYPT_VERS, nconf);
+ transp = svcunix_create(RPC_ANYSOCK, 0, 0, KEYSERVSOCK);
+ if (transp == NULL)
+ errx(1, "cannot create AF_LOCAL service");
+ if (!svc_reg(transp, KEY_PROG, KEY_VERS, keyprogram, nconf))
+ errx(1, "unable to register (KEY_PROG, KEY_VERS, unix)");
+ if (!svc_reg(transp, KEY_PROG, KEY_VERS2, keyprogram, nconf))
+ errx(1, "unable to register (KEY_PROG, KEY_VERS2, unix)");
+ if (!svc_reg(transp, CRYPT_PROG, CRYPT_VERS, crypt_prog_1, nconf))
+ errx(1, "unable to register (CRYPT_PROG, CRYPT_VERS, unix)");
+
+ endnetconfig(localhandle);
+
+ (void) umask(066); /* paranoia */
+
+ if (!debugging) {
+ daemon(0,0);
+ }
+
+ signal(SIGPIPE, SIG_IGN);
+
+ svc_run();
+ abort();
+ /* NOTREACHED */
+}
+
+/*
+ * In the event that we don't get a root password, we try to
+ * randomize the master key the best we can
+ */
+static void
+randomize(master)
+ des_block *master;
+{
+#ifndef __FreeBSD__
+ int i;
+ int seed;
+ struct timeval tv;
+ int shift;
+
+ seed = 0;
+ for (i = 0; i < 1024; i++) {
+ (void)gettimeofday(&tv, NULL);
+ shift = i % 8 * sizeof (int);
+ seed ^= (tv.tv_usec << shift) | (tv.tv_usec >> (32 - shift));
+ }
+#endif
+#ifdef KEYSERV_RANDOM
+#ifdef __FreeBSD__
+ master->key.low = arc4random();
+ master->key.high = arc4random();
+#else
+ srandom(seed);
+ master->key.low = random();
+ master->key.high = random();
+#endif
+#else
+ /* use stupid dangerous bad rand() */
+#ifdef __FreeBSD__
+ sranddev();
+#else
+ srand(seed);
+#endif
+ master->key.low = rand();
+ master->key.high = rand();
+#endif
+}
+
+/*
+ * Try to get root's secret key, by prompting if terminal is a tty, else trying
+ * from standard input.
+ * Returns 1 on success.
+ */
+static int
+getrootkey(master, prompt)
+ des_block *master;
+ int prompt;
+{
+ char *passwd;
+ char name[MAXNETNAMELEN + 1];
+ char secret[HEXKEYBYTES];
+ key_netstarg netstore;
+ int fd;
+
+ if (!prompt) {
+ /*
+ * Read secret key out of ROOTKEY
+ */
+ fd = open(ROOTKEY, O_RDONLY, 0);
+ if (fd < 0) {
+ randomize(master);
+ return (0);
+ }
+ if (read(fd, secret, HEXKEYBYTES) < HEXKEYBYTES) {
+ warnx("the key read from %s was too short", ROOTKEY);
+ (void) close(fd);
+ return (0);
+ }
+ (void) close(fd);
+ if (!getnetname(name)) {
+ warnx(
+ "failed to generate host's netname when establishing root's key");
+ return (0);
+ }
+ memcpy(netstore.st_priv_key, secret, HEXKEYBYTES);
+ memset(netstore.st_pub_key, 0, HEXKEYBYTES);
+ netstore.st_netname = name;
+ if (pk_netput(0, &netstore) != KEY_SUCCESS) {
+ warnx("could not set root's key and netname");
+ return (0);
+ }
+ return (1);
+ }
+ /*
+ * Decrypt yellow pages publickey entry to get secret key
+ */
+ passwd = getpass("root password:");
+ passwd2des(passwd, (char *)master);
+ getnetname(name);
+ if (!getsecretkey(name, secret, passwd)) {
+ warnx("can't find %s's secret key", name);
+ return (0);
+ }
+ if (secret[0] == 0) {
+ warnx("password does not decrypt secret key for %s", name);
+ return (0);
+ }
+ (void) pk_setkey(0, secret);
+ /*
+ * Store it for future use in $ROOTKEY, if possible
+ */
+ fd = open(ROOTKEY, O_WRONLY|O_TRUNC|O_CREAT, 0);
+ if (fd > 0) {
+ char newline = '\n';
+
+ write(fd, secret, strlen(secret));
+ write(fd, &newline, sizeof (newline));
+ close(fd);
+ }
+ return (1);
+}
+
+/*
+ * Procedures to implement RPC service
+ */
+char *
+strstatus(status)
+ keystatus status;
+{
+ switch (status) {
+ case KEY_SUCCESS:
+ return ("KEY_SUCCESS");
+ case KEY_NOSECRET:
+ return ("KEY_NOSECRET");
+ case KEY_UNKNOWN:
+ return ("KEY_UNKNOWN");
+ case KEY_SYSTEMERR:
+ return ("KEY_SYSTEMERR");
+ default:
+ return ("(bad result code)");
+ }
+}
+
+keystatus *
+key_set_1_svc_prog(uid, key)
+ uid_t uid;
+ keybuf key;
+{
+ static keystatus status;
+
+ if (debugging) {
+ (void) fprintf(stderr, "set(%u, %.*s) = ", uid,
+ (int) sizeof (keybuf), key);
+ }
+ status = pk_setkey(uid, key);
+ if (debugging) {
+ (void) fprintf(stderr, "%s\n", strstatus(status));
+ (void) fflush(stderr);
+ }
+ return (&status);
+}
+
+cryptkeyres *
+key_encrypt_pk_2_svc_prog(uid, arg)
+ uid_t uid;
+ cryptkeyarg2 *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, &(arg->remotekey),
+ &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_pk_2_svc_prog(uid, arg)
+ uid_t uid;
+ cryptkeyarg2 *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, &(arg->remotekey),
+ &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);
+}
+
+keystatus *
+key_net_put_2_svc_prog(uid, arg)
+ uid_t uid;
+ key_netstarg *arg;
+{
+ static keystatus status;
+
+ if (debugging) {
+ (void) fprintf(stderr, "net_put(%s, %.*s, %.*s) = ",
+ arg->st_netname, (int)sizeof (arg->st_pub_key),
+ arg->st_pub_key, (int)sizeof (arg->st_priv_key),
+ arg->st_priv_key);
+ };
+
+ status = pk_netput(uid, arg);
+
+ if (debugging) {
+ (void) fprintf(stderr, "%s\n", strstatus(status));
+ (void) fflush(stderr);
+ }
+
+ return (&status);
+}
+
+key_netstres *
+key_net_get_2_svc_prog(uid, arg)
+ uid_t uid;
+ void *arg;
+{
+ static key_netstres keynetname;
+
+ if (debugging)
+ (void) fprintf(stderr, "net_get(%u) = ", uid);
+
+ keynetname.status = pk_netget(uid, &keynetname.key_netstres_u.knet);
+ if (debugging) {
+ if (keynetname.status == KEY_SUCCESS) {
+ fprintf(stderr, "<%s, %.*s, %.*s>\n",
+ keynetname.key_netstres_u.knet.st_netname,
+ (int)sizeof (keynetname.key_netstres_u.knet.st_pub_key),
+ keynetname.key_netstres_u.knet.st_pub_key,
+ (int)sizeof (keynetname.key_netstres_u.knet.st_priv_key),
+ keynetname.key_netstres_u.knet.st_priv_key);
+ } else {
+ (void) fprintf(stderr, "NOT FOUND\n");
+ }
+ (void) fflush(stderr);
+ }
+
+ return (&keynetname);
+
+}
+
+cryptkeyres *
+key_get_conv_2_svc_prog(uid, arg)
+ uid_t uid;
+ keybuf arg;
+{
+ static cryptkeyres res;
+
+ if (debugging)
+ (void) fprintf(stderr, "get_conv(%u, %.*s) = ", uid,
+ (int)sizeof (keybuf), arg);
+
+
+ res.status = pk_get_conv_key(uid, arg, &res);
+
+ 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_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);
+}
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