/*
* Initialize a realm control structure from the alternate profile or from
* the specified defaults.
*
* After we're complete here, the essence of the realm is embodied in the
* realm data and we should be all set to begin operation for that realm.
*/
static krb5_error_code
init_realm(kdc_realm_t * rdp, krb5_pointer aprof, char *realm,
char *def_mpname, krb5_enctype def_enctype, char *def_udp_listen,
char *def_tcp_listen, krb5_boolean def_manual,
krb5_boolean def_restrict_anon, char **db_args, char *no_referral,
char *hostbased)
{
krb5_error_code kret;
krb5_boolean manual;
int kdb_open_flags;
char *svalue = NULL;
const char *hierarchy[4];
krb5_kvno mkvno = IGNORE_VNO;
memset(rdp, 0, sizeof(kdc_realm_t));
if (!realm) {
kret = EINVAL;
goto whoops;
}
hierarchy[0] = KRB5_CONF_REALMS;
hierarchy[1] = realm;
hierarchy[3] = NULL;
rdp->realm_name = strdup(realm);
if (rdp->realm_name == NULL) {
kret = ENOMEM;
goto whoops;
}
kret = krb5int_init_context_kdc(&rdp->realm_context);
if (kret) {
kdc_err(NULL, kret, _("while getting context for realm %s"), realm);
goto whoops;
}
if (time_offset != 0)
(void)krb5_set_time_offsets(rdp->realm_context, time_offset, 0);
/* Handle master key name */
hierarchy[2] = KRB5_CONF_MASTER_KEY_NAME;
if (krb5_aprof_get_string(aprof, hierarchy, TRUE, &rdp->realm_mpname)) {
rdp->realm_mpname = (def_mpname) ? strdup(def_mpname) :
strdup(KRB5_KDB_M_NAME);
}
if (!rdp->realm_mpname) {
kret = ENOMEM;
goto whoops;
}
/* Handle KDC addresses/ports */
hierarchy[2] = KRB5_CONF_KDC_LISTEN;
if (krb5_aprof_get_string(aprof, hierarchy, TRUE, &rdp->realm_listen)) {
/* Try the old kdc_ports configuration option. */
hierarchy[2] = KRB5_CONF_KDC_PORTS;
if (krb5_aprof_get_string(aprof, hierarchy, TRUE, &rdp->realm_listen))
rdp->realm_listen = strdup(def_udp_listen);
}
if (!rdp->realm_listen) {
kret = ENOMEM;
goto whoops;
}
hierarchy[2] = KRB5_CONF_KDC_TCP_LISTEN;
if (krb5_aprof_get_string(aprof, hierarchy, TRUE,
&rdp->realm_tcp_listen)) {
/* Try the old kdc_tcp_ports configuration option. */
hierarchy[2] = KRB5_CONF_KDC_TCP_PORTS;
if (krb5_aprof_get_string(aprof, hierarchy, TRUE,
&rdp->realm_tcp_listen))
rdp->realm_tcp_listen = strdup(def_tcp_listen);
}
if (!rdp->realm_tcp_listen) {
kret = ENOMEM;
goto whoops;
}
/* Handle stash file */
hierarchy[2] = KRB5_CONF_KEY_STASH_FILE;
if (krb5_aprof_get_string(aprof, hierarchy, TRUE, &rdp->realm_stash))
manual = def_manual;
else
manual = FALSE;
hierarchy[2] = KRB5_CONF_RESTRICT_ANONYMOUS_TO_TGT;
if (krb5_aprof_get_boolean(aprof, hierarchy, TRUE,
&rdp->realm_restrict_anon))
rdp->realm_restrict_anon = def_restrict_anon;
/* Handle master key type */
hierarchy[2] = KRB5_CONF_MASTER_KEY_TYPE;
if (krb5_aprof_get_string(aprof, hierarchy, TRUE, &svalue) ||
krb5_string_to_enctype(svalue, &rdp->realm_mkey.enctype))
rdp->realm_mkey.enctype = manual ? def_enctype : ENCTYPE_UNKNOWN;
free(svalue);
svalue = NULL;
/* Handle reject-bad-transit flag */
hierarchy[2] = KRB5_CONF_REJECT_BAD_TRANSIT;
if (krb5_aprof_get_boolean(aprof, hierarchy, TRUE,
&rdp->realm_reject_bad_transit))
rdp->realm_reject_bad_transit = TRUE;
/* Handle assume des-cbc-crc is supported for session keys */
hierarchy[2] = KRB5_CONF_DES_CRC_SESSION_SUPPORTED;
if (krb5_aprof_get_boolean(aprof, hierarchy, TRUE,
&rdp->realm_assume_des_crc_sess))
rdp->realm_assume_des_crc_sess = TRUE;
/* Handle ticket maximum life */
hierarchy[2] = KRB5_CONF_MAX_LIFE;
if (krb5_aprof_get_deltat(aprof, hierarchy, TRUE, &rdp->realm_maxlife))
rdp->realm_maxlife = KRB5_KDB_MAX_LIFE;
/* Handle ticket renewable maximum life */
hierarchy[2] = KRB5_CONF_MAX_RENEWABLE_LIFE;
if (krb5_aprof_get_deltat(aprof, hierarchy, TRUE, &rdp->realm_maxrlife))
rdp->realm_maxrlife = KRB5_KDB_MAX_RLIFE;
/* Handle KDC referrals */
hierarchy[2] = KRB5_CONF_NO_HOST_REFERRAL;
(void)krb5_aprof_get_string_all(aprof, hierarchy, &svalue);
kret = combine(no_referral, svalue, &rdp->realm_no_referral);
if (kret)
goto whoops;
free(svalue);
svalue = NULL;
hierarchy[2] = KRB5_CONF_HOST_BASED_SERVICES;
(void)krb5_aprof_get_string_all(aprof, hierarchy, &svalue);
kret = combine(hostbased, svalue, &rdp->realm_hostbased);
if (kret)
goto whoops;
free(svalue);
svalue = NULL;
/*
* We've got our parameters, now go and setup our realm context.
*/
/* Set the default realm of this context */
if ((kret = krb5_set_default_realm(rdp->realm_context, realm))) {
kdc_err(rdp->realm_context, kret,
_("while setting default realm to %s"), realm);
goto whoops;
}
/* first open the database before doing anything */
kdb_open_flags = KRB5_KDB_OPEN_RW | KRB5_KDB_SRV_TYPE_KDC;
if ((kret = krb5_db_open(rdp->realm_context, db_args, kdb_open_flags))) {
kdc_err(rdp->realm_context, kret,
_("while initializing database for realm %s"), realm);
goto whoops;
}
/* Assemble and parse the master key name */
if ((kret = krb5_db_setup_mkey_name(rdp->realm_context, rdp->realm_mpname,
rdp->realm_name, (char **) NULL,
&rdp->realm_mprinc))) {
kdc_err(rdp->realm_context, kret,
_("while setting up master key name %s for realm %s"),
rdp->realm_mpname, realm);
goto whoops;
}
/*
* Get the master key (note, may not be the most current mkey).
*/
if ((kret = krb5_db_fetch_mkey(rdp->realm_context, rdp->realm_mprinc,
rdp->realm_mkey.enctype, manual,
FALSE, rdp->realm_stash,
&mkvno, NULL, &rdp->realm_mkey))) {
kdc_err(rdp->realm_context, kret,
_("while fetching master key %s for realm %s"),
rdp->realm_mpname, realm);
goto whoops;
}
if ((kret = krb5_db_fetch_mkey_list(rdp->realm_context, rdp->realm_mprinc,
&rdp->realm_mkey))) {
kdc_err(rdp->realm_context, kret,
_("while fetching master keys list for realm %s"), realm);
goto whoops;
}
/* Set up the keytab */
if ((kret = krb5_ktkdb_resolve(rdp->realm_context, NULL,
&rdp->realm_keytab))) {
kdc_err(rdp->realm_context, kret,
_("while resolving kdb keytab for realm %s"), realm);
goto whoops;
}
/* Preformat the TGS name */
if ((kret = krb5_build_principal(rdp->realm_context, &rdp->realm_tgsprinc,
strlen(realm), realm, KRB5_TGS_NAME,
realm, (char *) NULL))) {
kdc_err(rdp->realm_context, kret,
_("while building TGS name for realm %s"), realm);
goto whoops;
}
if (!rkey_init_done) {
krb5_data seed;
/*
* If all that worked, then initialize the random key
* generators.
*/
seed.length = rdp->realm_mkey.length;
seed.data = (char *)rdp->realm_mkey.contents;
if ((kret = krb5_c_random_add_entropy(rdp->realm_context,
KRB5_C_RANDSOURCE_TRUSTEDPARTY, &seed)))
goto whoops;
rkey_init_done = 1;
}
whoops:
/*
* If we choked, then clean up any dirt we may have dropped on the floor.
*/
if (kret) {
finish_realm(rdp);
}
return(kret);
}
static void
initialize_realms(krb5_context kcontext, int argc, char **argv)
{
int c;
char *db_name = (char *) NULL;
char *lrealm = (char *) NULL;
char *mkey_name = (char *) NULL;
krb5_error_code retval;
krb5_enctype menctype = ENCTYPE_UNKNOWN;
kdc_realm_t *rdatap = NULL;
krb5_boolean manual = FALSE;
krb5_boolean def_restrict_anon;
char *default_udp_ports = 0;
char *default_tcp_ports = 0;
krb5_pointer aprof;
const char *hierarchy[3];
char *no_refrls = NULL;
char *host_based_srvcs = NULL;
int db_args_size = 0;
char **db_args = NULL;
extern char *optarg;
if (!krb5_aprof_init(DEFAULT_KDC_PROFILE, KDC_PROFILE_ENV, &aprof)) {
hierarchy[0] = KRB5_CONF_KDCDEFAULTS;
hierarchy[1] = KRB5_CONF_KDC_PORTS;
hierarchy[2] = (char *) NULL;
if (krb5_aprof_get_string(aprof, hierarchy, TRUE, &default_udp_ports))
default_udp_ports = 0;
hierarchy[1] = KRB5_CONF_KDC_TCP_PORTS;
if (krb5_aprof_get_string(aprof, hierarchy, TRUE, &default_tcp_ports))
default_tcp_ports = 0;
hierarchy[1] = KRB5_CONF_MAX_DGRAM_REPLY_SIZE;
if (krb5_aprof_get_int32(aprof, hierarchy, TRUE, &max_dgram_reply_size))
max_dgram_reply_size = MAX_DGRAM_SIZE;
hierarchy[1] = KRB5_CONF_RESTRICT_ANONYMOUS_TO_TGT;
if (krb5_aprof_get_boolean(aprof, hierarchy, TRUE, &def_restrict_anon))
def_restrict_anon = FALSE;
hierarchy[1] = KRB5_CONF_NO_HOST_REFERRAL;
if (krb5_aprof_get_string_all(aprof, hierarchy, &no_refrls))
no_refrls = 0;
if (!no_refrls ||
krb5_match_config_pattern(no_refrls, KRB5_CONF_ASTERISK) == FALSE) {
hierarchy[1] = KRB5_CONF_HOST_BASED_SERVICES;
if (krb5_aprof_get_string_all(aprof, hierarchy, &host_based_srvcs))
host_based_srvcs = 0;
}
krb5_aprof_finish(aprof);
}
if (default_udp_ports == 0) {
default_udp_ports = strdup(DEFAULT_KDC_UDP_PORTLIST);
if (default_udp_ports == 0) {
fprintf(stderr, _(" KDC cannot initialize. Not enough memory\n"));
exit(1);
}
}
if (default_tcp_ports == 0) {
default_tcp_ports = strdup(DEFAULT_KDC_TCP_PORTLIST);
if (default_tcp_ports == 0) {
fprintf(stderr, _(" KDC cannot initialize. Not enough memory\n"));
exit(1);
}
}
/*
* Loop through the option list. Each time we encounter a realm name,
* use the previously scanned options to fill in for defaults.
*/
while ((c = getopt(argc, argv, "x:r:d:mM:k:R:e:P:p:s:nw:4:X3")) != -1) {
switch(c) {
case 'x':
db_args_size++;
{
char **temp = realloc( db_args, sizeof(char*) * (db_args_size+1)); /* one for NULL */
if( temp == NULL )
{
fprintf(stderr, _("%s: KDC cannot initialize. Not enough "
"memory\n"), argv[0]);
exit(1);
}
db_args = temp;
}
db_args[db_args_size-1] = optarg;
db_args[db_args_size] = NULL;
break;
case 'r': /* realm name for db */
if (!find_realm_data(optarg, (krb5_ui_4) strlen(optarg))) {
if ((rdatap = (kdc_realm_t *) malloc(sizeof(kdc_realm_t)))) {
if ((retval = init_realm(rdatap, optarg, mkey_name,
menctype, default_udp_ports,
default_tcp_ports, manual,
def_restrict_anon, db_args,
no_refrls, host_based_srvcs))) {
fprintf(stderr, _("%s: cannot initialize realm %s - "
"see log file for details\n"),
argv[0], optarg);
exit(1);
}
kdc_realmlist[kdc_numrealms] = rdatap;
kdc_numrealms++;
free(db_args), db_args=NULL, db_args_size = 0;
}
else
{
fprintf(stderr, _("%s: cannot initialize realm %s. Not "
"enough memory\n"), argv[0], optarg);
exit(1);
}
}
break;
case 'd': /* pathname for db */
/* now db_name is not a seperate argument.
* It has to be passed as part of the db_args
*/
if( db_name == NULL ) {
if (asprintf(&db_name, "dbname=%s", optarg) < 0) {
fprintf(stderr, _("%s: KDC cannot initialize. Not enough "
"memory\n"), argv[0]);
exit(1);
}
}
db_args_size++;
{
char **temp = realloc( db_args, sizeof(char*) * (db_args_size+1)); /* one for NULL */
if( temp == NULL )
{
fprintf(stderr, _("%s: KDC cannot initialize. Not enough "
"memory\n"), argv[0]);
exit(1);
}
db_args = temp;
}
db_args[db_args_size-1] = db_name;
db_args[db_args_size] = NULL;
break;
case 'm': /* manual type-in of master key */
manual = TRUE;
if (menctype == ENCTYPE_UNKNOWN)
menctype = ENCTYPE_DES_CBC_CRC;
break;
case 'M': /* master key name in DB */
mkey_name = optarg;
break;
case 'n':
nofork++; /* don't detach from terminal */
break;
case 'w': /* create multiple worker processes */
workers = atoi(optarg);
if (workers <= 0)
usage(argv[0]);
break;
case 'k': /* enctype for master key */
if (krb5_string_to_enctype(optarg, &menctype))
com_err(argv[0], 0, _("invalid enctype %s"), optarg);
break;
case 'R':
/* Replay cache name; defunct since we don't use a replay cache. */
break;
case 'P':
pid_file = optarg;
break;
case 'p':
if (default_udp_ports)
free(default_udp_ports);
default_udp_ports = strdup(optarg);
if (!default_udp_ports) {
fprintf(stderr, _(" KDC cannot initialize. Not enough "
"memory\n"));
exit(1);
}
#if 0 /* not yet */
if (default_tcp_ports)
free(default_tcp_ports);
default_tcp_ports = strdup(optarg);
#endif
break;
case '4':
break;
case 'X':
break;
case '?':
default:
usage(argv[0]);
}
}
/*
* Check to see if we processed any realms.
*/
if (kdc_numrealms == 0) {
/* no realm specified, use default realm */
if ((retval = krb5_get_default_realm(kcontext, &lrealm))) {
com_err(argv[0], retval,
_("while attempting to retrieve default realm"));
fprintf (stderr,
_("%s: %s, attempting to retrieve default realm\n"),
argv[0], krb5_get_error_message(kcontext, retval));
exit(1);
}
if ((rdatap = (kdc_realm_t *) malloc(sizeof(kdc_realm_t)))) {
if ((retval = init_realm(rdatap, lrealm, mkey_name, menctype,
default_udp_ports, default_tcp_ports,
manual, def_restrict_anon, db_args,
no_refrls, host_based_srvcs))) {
fprintf(stderr, _("%s: cannot initialize realm %s - see log "
"file for details\n"), argv[0], lrealm);
exit(1);
}
kdc_realmlist[0] = rdatap;
kdc_numrealms++;
}
krb5_free_default_realm(kcontext, lrealm);
}
/* Ensure that this is set for our first request. */
kdc_active_realm = kdc_realmlist[0];
if (default_udp_ports)
free(default_udp_ports);
if (default_tcp_ports)
free(default_tcp_ports);
if (db_args)
free(db_args);
if (db_name)
free(db_name);
if (host_based_srvcs)
free(host_based_srvcs);
if (no_refrls)
free(no_refrls);
return;
}
void
initialize_realms(krb5_context kcontext, int argc, char **argv)
{
int c;
char *db_name = (char *) NULL;
char *mkey_name = (char *) NULL;
char *rcname = KDCRCACHE;
char *lrealm = NULL;
krb5_error_code retval;
krb5_enctype menctype = ENCTYPE_UNKNOWN;
kdc_realm_t *rdatap;
krb5_boolean manual = FALSE;
char *default_udp_ports = 0;
char *default_tcp_ports = 0;
krb5_pointer aprof;
const char *hierarchy[3];
char **db_args = NULL;
int db_args_size = 0;
#ifdef KRB5_KRB4_COMPAT
char *v4mode = 0;
#endif
extern char *optarg;
if (!krb5_aprof_init(DEFAULT_KDC_PROFILE, KDC_PROFILE_ENV, &aprof)) {
hierarchy[0] = "kdcdefaults";
hierarchy[1] = "kdc_ports";
hierarchy[2] = (char *) NULL;
if (krb5_aprof_get_string(aprof, hierarchy, TRUE, &default_udp_ports))
default_udp_ports = 0;
hierarchy[1] = "kdc_tcp_ports";
if (krb5_aprof_get_string(aprof, hierarchy, TRUE, &default_tcp_ports))
default_tcp_ports = 0;
hierarchy[1] = "kdc_max_tcp_connections";
if (krb5_aprof_get_int32(aprof, hierarchy, TRUE,
&max_tcp_data_connections)) {
max_tcp_data_connections = DEFAULT_KDC_TCP_CONNECTIONS;
} else if (max_tcp_data_connections < MIN_KDC_TCP_CONNECTIONS) {
max_tcp_data_connections = DEFAULT_KDC_TCP_CONNECTIONS;
}
#ifdef KRB5_KRB4_COMPAT
hierarchy[1] = "v4_mode";
if (krb5_aprof_get_string(aprof, hierarchy, TRUE, &v4mode))
v4mode = 0;
#endif
/* aprof_init can return 0 with aprof == NULL */
if (aprof)
krb5_aprof_finish(aprof);
}
if (default_udp_ports == 0)
default_udp_ports = strdup(DEFAULT_KDC_UDP_PORTLIST);
if (default_tcp_ports == 0)
default_tcp_ports = strdup(DEFAULT_KDC_TCP_PORTLIST);
/*
* Loop through the option list. Each time we encounter a realm name,
* use the previously scanned options to fill in for defaults.
*/
while ((c = getopt(argc, argv, "x:r:d:mM:k:R:e:p:s:n4:X3")) != -1) {
switch(c) {
case 'x':
db_args_size++;
{
char **temp = realloc( db_args, sizeof(char*) * (db_args_size+1)); /* one for NULL */
if( temp == NULL )
{
/* Solaris Kerberos: Keep error messages consistent */
com_err(argv[0], errno, gettext("while initializing KDC"));
exit(1);
}
db_args = temp;
}
db_args[db_args_size-1] = optarg;
db_args[db_args_size] = NULL;
break;
case 'r': /* realm name for db */
if (!find_realm_data(optarg, (krb5_ui_4) strlen(optarg))) {
if ((rdatap = (kdc_realm_t *) malloc(sizeof(kdc_realm_t)))) {
if ((retval = init_realm(kcontext, argv[0], rdatap, optarg,
mkey_name, menctype,
default_udp_ports,
default_tcp_ports, manual, db_args))) {
/* Solaris Kerberos: Keep error messages consistent */
com_err(argv[0], retval, gettext("while initializing realm %s"), optarg);
exit(1);
}
kdc_realmlist[kdc_numrealms] = rdatap;
kdc_numrealms++;
free(db_args), db_args=NULL, db_args_size = 0;
}
else
{
/* Solaris Kerberos: Keep error messages consistent */
com_err(argv[0], errno, gettext("while initializing realm %s"), optarg);
exit(1);
}
}
break;
case 'd': /* pathname for db */
/* now db_name is not a seperate argument. It has to be passed as part of the db_args */
if( db_name == NULL )
{
db_name = malloc(sizeof("dbname=") + strlen(optarg));
if( db_name == NULL )
{
/* Solaris Kerberos: Keep error messages consistent */
com_err(argv[0], errno, gettext("while initializing KDC"));
exit(1);
}
sprintf( db_name, "dbname=%s", optarg);
}
db_args_size++;
{
char **temp = realloc( db_args, sizeof(char*) * (db_args_size+1)); /* one for NULL */
if( temp == NULL )
{
/* Solaris Kerberos: Keep error messages consistent */
com_err(argv[0], errno, gettext("while initializing KDC"));
exit(1);
}
db_args = temp;
}
db_args[db_args_size-1] = db_name;
db_args[db_args_size] = NULL;
break;
case 'm': /* manual type-in of master key */
manual = TRUE;
if (menctype == ENCTYPE_UNKNOWN)
menctype = ENCTYPE_DES_CBC_CRC;
break;
case 'M': /* master key name in DB */
mkey_name = optarg;
break;
case 'n':
nofork++; /* don't detach from terminal */
break;
case 'k': /* enctype for master key */
/* Solaris Kerberos: Keep error messages consistent */
if (retval = krb5_string_to_enctype(optarg, &menctype))
com_err(argv[0], retval,
gettext("while converting %s to an enctype"), optarg);
break;
case 'R':
rcname = optarg;
break;
case 'p':
if (default_udp_ports)
free(default_udp_ports);
default_udp_ports = strdup(optarg);
if (default_tcp_ports)
free(default_tcp_ports);
default_tcp_ports = strdup(optarg);
break;
case '4':
#ifdef KRB5_KRB4_COMPAT
if (v4mode)
free(v4mode);
v4mode = strdup(optarg);
#endif
break;
case 'X':
#ifdef KRB5_KRB4_COMPAT
enable_v4_crossrealm(argv[0]);
#endif
break;
case '?':
default:
usage(argv[0]);
exit(1);
}
}
#ifdef KRB5_KRB4_COMPAT
/*
* Setup the v4 mode
*/
process_v4_mode(argv[0], v4mode);
free(v4mode);
#endif
/*
* Check to see if we processed any realms.
*/
if (kdc_numrealms == 0) {
/* no realm specified, use default realm */
if ((retval = krb5_get_default_realm(kcontext, &lrealm))) {
com_err(argv[0], retval,
gettext("while attempting to retrieve default realm"));
/* Solaris Kerberos: avoid double logging */
#if 0
fprintf (stderr, "%s: %s, %s", argv[0], error_message (retval),
gettext("attempting to retrieve default realm\n"));
#endif
exit(1);
}
if ((rdatap = (kdc_realm_t *) malloc(sizeof(kdc_realm_t)))) {
if ((retval = init_realm(kcontext, argv[0], rdatap, lrealm,
mkey_name, menctype, default_udp_ports,
default_tcp_ports, manual, db_args))) {
/* Solaris Kerberos: Keep error messages consistent */
com_err(argv[0], retval, gettext("while initializing realm %s"), lrealm);
exit(1);
}
kdc_realmlist[0] = rdatap;
kdc_numrealms++;
} else {
if (lrealm)
free(lrealm);
}
}
#ifdef USE_RCACHE
/*
* Now handle the replay cache.
*/
if ((retval = kdc_initialize_rcache(kcontext, rcname))) {
com_err(argv[0], retval, gettext("while initializing KDC replay cache '%s'"),
rcname);
exit(1);
}
#endif
/* Ensure that this is set for our first request. */
kdc_active_realm = kdc_realmlist[0];
if (default_udp_ports)
free(default_udp_ports);
if (default_tcp_ports)
free(default_tcp_ports);
if (db_args)
free(db_args);
if (db_name)
free(db_name);
return;
}
