435 lines
11 KiB
C
435 lines
11 KiB
C
/*
|
|
* Copyright (c) 1997-2001 Kungliga Tekniska Högskolan
|
|
* (Royal Institute of Technology, Stockholm, Sweden).
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* 3. Neither the name of the Institute nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include "hprop.h"
|
|
|
|
RCSID("$Id: hpropd.c,v 1.32 2001/02/20 01:44:50 assar Exp $");
|
|
|
|
#ifdef KRB4
|
|
static des_cblock mkey4;
|
|
static des_key_schedule msched4;
|
|
|
|
static char *
|
|
time2str(time_t t)
|
|
{
|
|
static char buf[128];
|
|
strftime(buf, sizeof(buf), "%Y%m%d%H%M", gmtime(&t));
|
|
return buf;
|
|
}
|
|
|
|
static int
|
|
dump_krb4(krb5_context context, hdb_entry *ent, int fd)
|
|
{
|
|
char name[ANAME_SZ];
|
|
char instance[INST_SZ];
|
|
char realm[REALM_SZ];
|
|
char buf[1024];
|
|
char *p;
|
|
int i;
|
|
int ret;
|
|
char *princ_name;
|
|
Event *modifier;
|
|
krb5_realm *realms;
|
|
int cmp;
|
|
|
|
ret = krb5_524_conv_principal(context, ent->principal,
|
|
name, instance, realm);
|
|
if (ret) {
|
|
krb5_unparse_name(context, ent->principal, &princ_name);
|
|
krb5_warn(context, ret, "%s", princ_name);
|
|
free(princ_name);
|
|
return -1;
|
|
}
|
|
|
|
ret = krb5_get_default_realms (context, &realms);
|
|
if (ret) {
|
|
krb5_warn(context, ret, "krb5_get_default_realms");
|
|
return -1;
|
|
}
|
|
|
|
cmp = strcmp (realms[0], ent->principal->realm);
|
|
krb5_free_host_realm (context, realms);
|
|
if (cmp != 0)
|
|
return -1;
|
|
|
|
snprintf (buf, sizeof(buf), "%s %s ", name,
|
|
(strlen(instance) != 0) ? instance : "*");
|
|
|
|
if (ent->max_life) {
|
|
asprintf(&p, "%d", krb_time_to_life(0, *ent->max_life));
|
|
strcat(buf, p);
|
|
free(p);
|
|
} else
|
|
strcat(buf, "255");
|
|
strcat(buf, " ");
|
|
|
|
i = 0;
|
|
while (i < ent->keys.len &&
|
|
ent->keys.val[i].key.keytype != KEYTYPE_DES)
|
|
++i;
|
|
|
|
if (i == ent->keys.len) {
|
|
krb5_warnx(context, "No DES key for %s.%s", name, instance);
|
|
return -1;
|
|
}
|
|
|
|
if (ent->keys.val[i].mkvno)
|
|
asprintf(&p, "%d ", *ent->keys.val[i].mkvno);
|
|
else
|
|
asprintf(&p, "%d ", 1);
|
|
strcat(buf, p);
|
|
free(p);
|
|
|
|
asprintf(&p, "%d ", ent->kvno);
|
|
strcat(buf, p);
|
|
free(p);
|
|
|
|
asprintf(&p, "%d ", 0); /* Attributes are always 0*/
|
|
strcat(buf, p);
|
|
free(p);
|
|
|
|
{
|
|
u_int32_t *key = ent->keys.val[i].key.keyvalue.data;
|
|
kdb_encrypt_key((des_cblock*)key, (des_cblock*)key,
|
|
&mkey4, msched4, DES_ENCRYPT);
|
|
asprintf(&p, "%x %x ", (int)htonl(*key), (int)htonl(*(key+1)));
|
|
strcat(buf, p);
|
|
free(p);
|
|
}
|
|
|
|
if (ent->valid_end == NULL)
|
|
strcat(buf, time2str(60*60*24*365*50)); /* no expiration */
|
|
else
|
|
strcat(buf, time2str(*ent->valid_end));
|
|
strcat(buf, " ");
|
|
|
|
if (ent->modified_by == NULL)
|
|
modifier = &ent->created_by;
|
|
else
|
|
modifier = ent->modified_by;
|
|
|
|
ret = krb5_524_conv_principal(context, modifier->principal,
|
|
name, instance, realm);
|
|
if (ret) {
|
|
krb5_unparse_name(context, modifier->principal, &princ_name);
|
|
krb5_warn(context, ret, "%s", princ_name);
|
|
free(princ_name);
|
|
return -1;
|
|
}
|
|
asprintf(&p, "%s %s %s\n", time2str(modifier->time),
|
|
(strlen(name) != 0) ? name : "*",
|
|
(strlen(instance) != 0) ? instance : "*");
|
|
strcat(buf, p);
|
|
free(p);
|
|
|
|
ret = write(fd, buf, strlen(buf));
|
|
if (ret == -1)
|
|
krb5_warnx(context, "write");
|
|
return 0;
|
|
}
|
|
#endif /* KRB4 */
|
|
|
|
static int inetd_flag = -1;
|
|
static int help_flag;
|
|
static int version_flag;
|
|
static int print_dump;
|
|
static char *database = HDB_DEFAULT_DB;
|
|
static int from_stdin;
|
|
#ifdef KRB4
|
|
static int v4dump;
|
|
#endif
|
|
static char *ktname = NULL;
|
|
|
|
struct getargs args[] = {
|
|
{ "database", 'd', arg_string, &database, "database", "file" },
|
|
{ "stdin", 'n', arg_flag, &from_stdin, "read from stdin" },
|
|
{ "print", 0, arg_flag, &print_dump, "print dump to stdout" },
|
|
{ "inetd", 'i', arg_negative_flag, &inetd_flag,
|
|
"Not started from inetd" },
|
|
{ "keytab", 'k', arg_string, &ktname, "keytab to use for authentication", "keytab" },
|
|
#ifdef KRB4
|
|
{ "v4dump", '4', arg_flag, &v4dump, "create v4 type DB" },
|
|
#endif
|
|
{ "version", 0, arg_flag, &version_flag, NULL, NULL },
|
|
{ "help", 'h', arg_flag, &help_flag, NULL, NULL}
|
|
};
|
|
|
|
static int num_args = sizeof(args) / sizeof(args[0]);
|
|
|
|
static void
|
|
usage(int ret)
|
|
{
|
|
arg_printusage (args, num_args, NULL, "");
|
|
exit (ret);
|
|
}
|
|
|
|
int
|
|
main(int argc, char **argv)
|
|
{
|
|
krb5_error_code ret;
|
|
krb5_context context;
|
|
krb5_auth_context ac = NULL;
|
|
krb5_principal c1, c2;
|
|
krb5_authenticator authent;
|
|
krb5_keytab keytab;
|
|
int fd;
|
|
HDB *db;
|
|
int optind = 0;
|
|
char *tmp_db;
|
|
krb5_log_facility *fac;
|
|
int nprincs;
|
|
#ifdef KRB4
|
|
int e;
|
|
int fd_out = -1;
|
|
#endif
|
|
|
|
setprogname(argv[0]);
|
|
|
|
ret = krb5_init_context(&context);
|
|
if(ret)
|
|
exit(1);
|
|
|
|
ret = krb5_openlog(context, "hpropd", &fac);
|
|
if(ret)
|
|
;
|
|
krb5_set_warn_dest(context, fac);
|
|
|
|
if(getarg(args, num_args, argc, argv, &optind))
|
|
usage(1);
|
|
|
|
#ifdef KRB4
|
|
if (v4dump && database == HDB_DEFAULT_DB)
|
|
database = "/var/kerberos/524_dump";
|
|
#endif /* KRB4 */
|
|
|
|
if(help_flag)
|
|
usage(0);
|
|
if(version_flag) {
|
|
print_version(NULL);
|
|
exit(0);
|
|
}
|
|
|
|
argc -= optind;
|
|
argv += optind;
|
|
|
|
if (argc != 0)
|
|
usage(1);
|
|
|
|
if(from_stdin)
|
|
fd = STDIN_FILENO;
|
|
else {
|
|
struct sockaddr_storage ss;
|
|
struct sockaddr *sa = (struct sockaddr *)&ss;
|
|
socklen_t sin_len = sizeof(ss);
|
|
char addr_name[256];
|
|
krb5_ticket *ticket;
|
|
char *server;
|
|
|
|
fd = STDIN_FILENO;
|
|
if (inetd_flag == -1) {
|
|
if (getpeername (fd, sa, &sin_len) < 0)
|
|
inetd_flag = 0;
|
|
else
|
|
inetd_flag = 1;
|
|
}
|
|
if (!inetd_flag) {
|
|
mini_inetd (krb5_getportbyname (context, "hprop", "tcp",
|
|
HPROP_PORT));
|
|
}
|
|
sin_len = sizeof(ss);
|
|
if(getpeername(fd, sa, &sin_len) < 0)
|
|
krb5_err(context, 1, errno, "getpeername");
|
|
|
|
if (inet_ntop(sa->sa_family,
|
|
socket_get_address (sa),
|
|
addr_name,
|
|
sizeof(addr_name)) == NULL)
|
|
strlcpy (addr_name, "unknown address",
|
|
sizeof(addr_name));
|
|
|
|
krb5_log(context, fac, 0, "Connection from %s", addr_name);
|
|
|
|
ret = krb5_kt_register(context, &hdb_kt_ops);
|
|
if(ret)
|
|
krb5_err(context, 1, ret, "krb5_kt_register");
|
|
|
|
if (ktname != NULL) {
|
|
ret = krb5_kt_resolve(context, ktname, &keytab);
|
|
if (ret)
|
|
krb5_err (context, 1, ret, "krb5_kt_resolve %s", ktname);
|
|
} else {
|
|
ret = krb5_kt_default (context, &keytab);
|
|
if (ret)
|
|
krb5_err (context, 1, ret, "krb5_kt_default");
|
|
}
|
|
|
|
ret = krb5_recvauth(context, &ac, &fd, HPROP_VERSION, NULL,
|
|
0, keytab, &ticket);
|
|
if(ret)
|
|
krb5_err(context, 1, ret, "krb5_recvauth");
|
|
|
|
ret = krb5_unparse_name(context, ticket->server, &server);
|
|
if (ret)
|
|
krb5_err(context, 1, ret, "krb5_unparse_name");
|
|
if (strncmp(server, "hprop/", 5) != 0)
|
|
krb5_errx(context, 1, "ticket not for hprop (%s)", server);
|
|
|
|
free(server);
|
|
krb5_free_ticket (context, ticket);
|
|
|
|
ret = krb5_auth_getauthenticator(context, ac, &authent);
|
|
if(ret)
|
|
krb5_err(context, 1, ret, "krb5_auth_getauthenticator");
|
|
|
|
ret = krb5_make_principal(context, &c1, NULL, "kadmin", "hprop", NULL);
|
|
if(ret)
|
|
krb5_err(context, 1, ret, "krb5_make_principal");
|
|
principalname2krb5_principal(&c2, authent->cname, authent->crealm);
|
|
if(!krb5_principal_compare(context, c1, c2)) {
|
|
char *s;
|
|
krb5_unparse_name(context, c2, &s);
|
|
krb5_errx(context, 1, "Unauthorized connection from %s", s);
|
|
}
|
|
krb5_free_principal(context, c1);
|
|
krb5_free_principal(context, c2);
|
|
|
|
ret = krb5_kt_close(context, keytab);
|
|
if(ret)
|
|
krb5_err(context, 1, ret, "krb5_kt_close");
|
|
}
|
|
|
|
if(!print_dump) {
|
|
asprintf(&tmp_db, "%s~", database);
|
|
#ifdef KRB4
|
|
if (v4dump) {
|
|
fd_out = open(tmp_db, O_WRONLY | O_CREAT | O_TRUNC, 0600);
|
|
if (fd_out == -1)
|
|
krb5_errx(context, 1, "%s", strerror(errno));
|
|
}
|
|
else
|
|
#endif /* KRB4 */
|
|
{
|
|
ret = hdb_create(context, &db, tmp_db);
|
|
if(ret)
|
|
krb5_err(context, 1, ret, "hdb_create(%s)", tmp_db);
|
|
ret = db->open(context, db, O_RDWR | O_CREAT | O_TRUNC, 0600);
|
|
if(ret)
|
|
krb5_err(context, 1, ret, "hdb_open(%s)", tmp_db);
|
|
}
|
|
}
|
|
|
|
#ifdef KRB4
|
|
if (v4dump) {
|
|
e = kdb_get_master_key(0, &mkey4, msched4);
|
|
if(e)
|
|
krb5_errx(context, 1, "kdb_get_master_key: %s",
|
|
krb_get_err_text(e));
|
|
}
|
|
#endif /* KRB4 */
|
|
|
|
nprincs = 0;
|
|
while(1){
|
|
krb5_data data;
|
|
hdb_entry entry;
|
|
|
|
if(from_stdin) {
|
|
ret = krb5_read_message(context, &fd, &data);
|
|
if(ret != 0 && ret != HEIM_ERR_EOF)
|
|
krb5_err(context, 1, ret, "krb5_read_message");
|
|
} else {
|
|
ret = krb5_read_priv_message(context, ac, &fd, &data);
|
|
if(ret)
|
|
krb5_err(context, 1, ret, "krb5_read_priv_message");
|
|
}
|
|
|
|
if(ret == HEIM_ERR_EOF || data.length == 0) {
|
|
if(!from_stdin) {
|
|
data.data = NULL;
|
|
data.length = 0;
|
|
krb5_write_priv_message(context, ac, &fd, &data);
|
|
}
|
|
if(!print_dump) {
|
|
#ifdef KRB4
|
|
if (v4dump) {
|
|
ret = rename(tmp_db, database);
|
|
if (ret)
|
|
krb5_errx(context, 1, "rename");
|
|
ret = close(fd_out);
|
|
if (ret)
|
|
krb5_errx(context, 1, "close");
|
|
} else
|
|
#endif /* KRB4 */
|
|
{
|
|
ret = db->rename(context, db, database);
|
|
if(ret)
|
|
krb5_err(context, 1, ret, "db_rename");
|
|
ret = db->close(context, db);
|
|
if(ret)
|
|
krb5_err(context, 1, ret, "db_close");
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
ret = hdb_value2entry(context, &data, &entry);
|
|
if(ret)
|
|
krb5_err(context, 1, ret, "hdb_value2entry");
|
|
if(print_dump)
|
|
hdb_print_entry(context, db, &entry, stdout);
|
|
else {
|
|
#ifdef KRB4
|
|
if (v4dump) {
|
|
ret = dump_krb4(context, &entry, fd_out);
|
|
if(!ret) nprincs++;
|
|
}
|
|
else
|
|
#endif /* KRB4 */
|
|
{
|
|
ret = db->store(context, db, 0, &entry);
|
|
if(ret == HDB_ERR_EXISTS) {
|
|
char *s;
|
|
krb5_unparse_name(context, entry.principal, &s);
|
|
krb5_warnx(context, "Entry exists: %s", s);
|
|
free(s);
|
|
} else if(ret)
|
|
krb5_err(context, 1, ret, "db_store");
|
|
else
|
|
nprincs++;
|
|
}
|
|
}
|
|
hdb_free_entry(context, &entry);
|
|
}
|
|
if (!print_dump)
|
|
krb5_log(context, fac, 0, "Received %d principals", nprincs);
|
|
exit(0);
|
|
}
|