804 lines
19 KiB
C
804 lines
19 KiB
C
/*
|
|
* 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 <rpc/pmap_clnt.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 __P(( des_block * ));
|
|
static void usage __P(( void ));
|
|
static int getrootkey __P(( des_block *, int ));
|
|
static int root_auth __P(( 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 __P(( uid_t, cryptkeyarg2 * ));
|
|
cryptkeyres *key_decrypt_pk_2_svc_prog __P(( uid_t, cryptkeyarg2 * ));
|
|
des_block *key_gen_1_svc_prog __P(( void *, struct svc_req * ));
|
|
|
|
int
|
|
main(argc, argv)
|
|
int argc;
|
|
char *argv[];
|
|
{
|
|
int nflag = 0;
|
|
int c;
|
|
register SVCXPRT *transp;
|
|
int sock = RPC_ANYSOCK;
|
|
int warn = 0;
|
|
char *path = 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(066); /* paranoia */
|
|
if (geteuid() != 0)
|
|
errx(1, "keyserv must be run as root");
|
|
setmodulus(HEXMODULUS);
|
|
getrootkey(&masterkey, nflag);
|
|
|
|
|
|
/* Create services. */
|
|
|
|
(void) pmap_unset(KEY_PROG, KEY_VERS);
|
|
(void) pmap_unset(KEY_PROG, KEY_VERS2);
|
|
unlink(KEYSERVSOCK);
|
|
|
|
transp = svcudp_create(RPC_ANYSOCK);
|
|
if (transp == NULL)
|
|
errx(1, "cannot create udp service");
|
|
if (!svc_register(transp, KEY_PROG, KEY_VERS, keyprogram, IPPROTO_UDP))
|
|
errx(1, "unable to register (KEY_PROG, KEY_VERS, udp)");
|
|
if (!svc_register(transp, KEY_PROG, KEY_VERS2, keyprogram, IPPROTO_UDP))
|
|
errx(1, "unable to register (KEY_PROG, KEY_VERS2, udp)");
|
|
|
|
transp = svctcp_create(RPC_ANYSOCK, 0, 0);
|
|
if (transp == NULL)
|
|
errx(1, "cannot create tcp service");
|
|
if (!svc_register(transp, KEY_PROG, KEY_VERS, keyprogram, IPPROTO_TCP))
|
|
errx(1, "unable to register (KEY_PROG, KEY_VERS, tcp)");
|
|
if (!svc_register(transp, KEY_PROG, KEY_VERS2, keyprogram, IPPROTO_TCP))
|
|
errx(1, "unable to register (KEY_PROG, KEY_VERS2, tcp)");
|
|
|
|
transp = svcunix_create(sock, 0, 0, KEYSERVSOCK);
|
|
chmod(KEYSERVSOCK, 0666);
|
|
if (transp == NULL)
|
|
errx(1, "cannot create AF_UNIX service");
|
|
if (!svc_register(transp, KEY_PROG, KEY_VERS, keyprogram, 0))
|
|
errx(1, "unable to register (KEY_PROG, KEY_VERS, unix)");
|
|
if (!svc_register(transp, KEY_PROG, KEY_VERS2, keyprogram, 0))
|
|
errx(1, "unable to register (KEY_PROG, KEY_VERS2, unix)");
|
|
if (!svc_register(transp, CRYPT_PROG, CRYPT_VERS, crypt_prog_1, 0))
|
|
errx(1, "unable to register (CRYPT_PROG, CRYPT_VERS, unix)");
|
|
|
|
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;
|
|
{
|
|
int i;
|
|
int seed;
|
|
struct timeval tv;
|
|
int shift;
|
|
|
|
seed = 0;
|
|
for (i = 0; i < 1024; i++) {
|
|
(void) gettimeofday(&tv, (struct timezone *) NULL);
|
|
shift = i % 8 * sizeof (int);
|
|
seed ^= (tv.tv_usec << shift) | (tv.tv_usec >> (32 - shift));
|
|
}
|
|
#ifdef KEYSERV_RANDOM
|
|
srandom(seed);
|
|
master->key.low = random();
|
|
master->key.high = random();
|
|
srandom(seed);
|
|
#else
|
|
/* use stupid dangerous bad rand() */
|
|
srand(seed);
|
|
master->key.low = rand();
|
|
master->key.high = rand();
|
|
srand(seed);
|
|
#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(%ld, %.*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(%ld, %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(%ld, %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(%ld) = ", 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(%ld, %.*s) = ", uid,
|
|
(int)sizeof (arg), 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(%ld, %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(%ld, %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, (struct timezone *) 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;
|
|
bool_t(*xdr_argument)(), (*xdr_result)();
|
|
char *(*local) ();
|
|
uid_t uid = -1;
|
|
int check_auth;
|
|
|
|
switch (rqstp->rq_proc) {
|
|
case NULLPROC:
|
|
svc_sendreply(transp, xdr_void, (char *)NULL);
|
|
return;
|
|
|
|
case KEY_SET:
|
|
xdr_argument = xdr_keybuf;
|
|
xdr_result = xdr_int;
|
|
local = (char *(*)()) key_set_1_svc_prog;
|
|
check_auth = 1;
|
|
break;
|
|
|
|
case KEY_ENCRYPT:
|
|
xdr_argument = xdr_cryptkeyarg;
|
|
xdr_result = xdr_cryptkeyres;
|
|
local = (char *(*)()) key_encrypt_1_svc_prog;
|
|
check_auth = 1;
|
|
break;
|
|
|
|
case KEY_DECRYPT:
|
|
xdr_argument = xdr_cryptkeyarg;
|
|
xdr_result = xdr_cryptkeyres;
|
|
local = (char *(*)()) key_decrypt_1_svc_prog;
|
|
check_auth = 1;
|
|
break;
|
|
|
|
case KEY_GEN:
|
|
xdr_argument = xdr_void;
|
|
xdr_result = xdr_des_block;
|
|
local = (char *(*)()) key_gen_1_svc_prog;
|
|
check_auth = 0;
|
|
break;
|
|
|
|
case KEY_GETCRED:
|
|
xdr_argument = xdr_netnamestr;
|
|
xdr_result = xdr_getcredres;
|
|
local = (char *(*)()) key_getcred_1_svc_prog;
|
|
check_auth = 0;
|
|
break;
|
|
|
|
case KEY_ENCRYPT_PK:
|
|
xdr_argument = xdr_cryptkeyarg2;
|
|
xdr_result = xdr_cryptkeyres;
|
|
local = (char *(*)()) key_encrypt_pk_2_svc_prog;
|
|
check_auth = 1;
|
|
break;
|
|
|
|
case KEY_DECRYPT_PK:
|
|
xdr_argument = xdr_cryptkeyarg2;
|
|
xdr_result = xdr_cryptkeyres;
|
|
local = (char *(*)()) key_decrypt_pk_2_svc_prog;
|
|
check_auth = 1;
|
|
break;
|
|
|
|
|
|
case KEY_NET_PUT:
|
|
xdr_argument = xdr_key_netstarg;
|
|
xdr_result = 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 = 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 = 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((char *) &argument, 0, sizeof (argument));
|
|
if (!svc_getargs(transp, xdr_argument, (caddr_t)&argument)) {
|
|
svcerr_decode(transp);
|
|
return;
|
|
}
|
|
result = (*local) (uid, &argument);
|
|
if (!svc_sendreply(transp, xdr_result, (char *) result)) {
|
|
if (debugging)
|
|
(void) fprintf(stderr, "unable to reply\n");
|
|
svcerr_systemerr(transp);
|
|
}
|
|
if (!svc_freeargs(transp, xdr_argument, (caddr_t)&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_in *remote;
|
|
|
|
remote = svc_getcaller(trans);
|
|
if (remote->sin_family == AF_INET) {
|
|
if (debugging)
|
|
fprintf(stderr, "client didn't use AF_UNIX\n");
|
|
return (0);
|
|
}
|
|
|
|
if (__rpc_get_local_uid(&uid, trans) < 0) {
|
|
if (debugging)
|
|
fprintf(stderr, "__rpc_get_local_uid failed\n");
|
|
return (0);
|
|
}
|
|
|
|
if (debugging)
|
|
fprintf(stderr, "local_uid %ld\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 %ld mismatches auth %ld\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);
|
|
}
|