static krb5_error_code
get_cred_kdc_la(krb5_context context, krb5_ccache id, krb5_kdc_flags flags,
krb5_creds *in_creds, krb5_creds *krbtgt,
krb5_creds *out_creds)
{
krb5_error_code ret;
krb5_addresses addresses, *addrs = &addresses;
krb5_get_all_client_addrs(context, &addresses);
/* XXX this sucks. */
if(addresses.len == 0)
addrs = NULL;
ret = get_cred_kdc(context, id, flags, addrs,
in_creds, krbtgt, out_creds);
krb5_free_addresses(context, &addresses);
return ret;
}
int
main(int argc, char **argv)
{
krb5_context context;
krb5_error_code ret;
krb5_addresses addrs;
int optidx = 0;
setprogname (argv[0]);
if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optidx))
usage(1);
if (help_flag)
usage (0);
if(version_flag){
print_version(NULL);
exit(0);
}
argc -= optidx;
argv += optidx;
ret = krb5_init_context(&context);
if (ret)
errx (1, "krb5_init_context failed: %d", ret);
ret = krb5_get_all_client_addrs (context, &addrs);
if (ret)
krb5_err (context, 1, ret, "krb5_get_all_client_addrs");
printf ("client addresses\n");
print_addresses (context, &addrs);
krb5_free_addresses (context, &addrs);
ret = krb5_get_all_server_addrs (context, &addrs);
if (ret)
krb5_err (context, 1, ret, "krb5_get_all_server_addrs");
printf ("server addresses\n");
print_addresses (context, &addrs);
krb5_free_addresses (context, &addrs);
return 0;
}
static krb5_error_code
get_cred_kdc_address(krb5_context context,
krb5_ccache id,
krb5_kdc_flags flags,
krb5_addresses *addrs,
krb5_creds *in_creds,
krb5_creds *krbtgt,
krb5_principal impersonate_principal,
Ticket *second_ticket,
krb5_creds *out_creds)
{
krb5_error_code ret;
krb5_addresses addresses = { 0, NULL };
/*
* Inherit the address-ness of the krbtgt if the address is not
* specified.
*/
if (addrs == NULL && krbtgt->addresses.len != 0) {
krb5_boolean noaddr;
krb5_appdefault_boolean(context, NULL, krbtgt->server->realm,
"no-addresses", FALSE, &noaddr);
if (!noaddr) {
krb5_get_all_client_addrs(context, &addresses);
/* XXX this sucks. */
addrs = &addresses;
if(addresses.len == 0)
addrs = NULL;
}
}
ret = get_cred_kdc(context, id, flags, addrs, in_creds,
krbtgt, impersonate_principal,
second_ticket, out_creds);
krb5_free_addresses(context, &addresses);
return ret;
}
static krb5_error_code
init_as_req (krb5_context context,
KDCOptions opts,
krb5_creds *creds,
const krb5_addresses *addrs,
const krb5_enctype *etypes,
const krb5_preauthtype *ptypes,
const krb5_preauthdata *preauth,
krb5_key_proc key_proc,
krb5_const_pointer keyseed,
unsigned nonce,
AS_REQ *a)
{
krb5_error_code ret;
krb5_salt salt;
memset(a, 0, sizeof(*a));
a->pvno = 5;
a->msg_type = krb_as_req;
a->req_body.kdc_options = opts;
a->req_body.cname = malloc(sizeof(*a->req_body.cname));
if (a->req_body.cname == NULL) {
ret = ENOMEM;
krb5_set_error_message(context, ret, N_("malloc: out of memory", ""));
goto fail;
}
a->req_body.sname = malloc(sizeof(*a->req_body.sname));
if (a->req_body.sname == NULL) {
ret = ENOMEM;
krb5_set_error_message(context, ret, N_("malloc: out of memory", ""));
goto fail;
}
ret = _krb5_principal2principalname (a->req_body.cname, creds->client);
if (ret)
goto fail;
ret = _krb5_principal2principalname (a->req_body.sname, creds->server);
if (ret)
goto fail;
ret = copy_Realm(&creds->client->realm, &a->req_body.realm);
if (ret)
goto fail;
if(creds->times.starttime) {
a->req_body.from = malloc(sizeof(*a->req_body.from));
if (a->req_body.from == NULL) {
ret = ENOMEM;
krb5_set_error_message(context, ret, N_("malloc: out of memory", ""));
goto fail;
}
*a->req_body.from = creds->times.starttime;
}
if(creds->times.endtime){
ALLOC(a->req_body.till, 1);
*a->req_body.till = creds->times.endtime;
}
if(creds->times.renew_till){
a->req_body.rtime = malloc(sizeof(*a->req_body.rtime));
if (a->req_body.rtime == NULL) {
ret = ENOMEM;
krb5_set_error_message(context, ret, N_("malloc: out of memory", ""));
goto fail;
}
*a->req_body.rtime = creds->times.renew_till;
}
a->req_body.nonce = nonce;
ret = _krb5_init_etype(context,
KRB5_PDU_AS_REQUEST,
&a->req_body.etype.len,
&a->req_body.etype.val,
etypes);
if (ret)
goto fail;
/*
* This means no addresses
*/
if (addrs && addrs->len == 0) {
a->req_body.addresses = NULL;
} else {
a->req_body.addresses = malloc(sizeof(*a->req_body.addresses));
if (a->req_body.addresses == NULL) {
ret = ENOMEM;
krb5_set_error_message(context, ret, N_("malloc: out of memory", ""));
goto fail;
}
if (addrs)
ret = krb5_copy_addresses(context, addrs, a->req_body.addresses);
else {
ret = krb5_get_all_client_addrs (context, a->req_body.addresses);
if(ret == 0 && a->req_body.addresses->len == 0) {
free(a->req_body.addresses);
a->req_body.addresses = NULL;
}
}
if (ret)
return ret;
}
a->req_body.enc_authorization_data = NULL;
a->req_body.additional_tickets = NULL;
if(preauth != NULL) {
size_t i;
ALLOC(a->padata, 1);
if(a->padata == NULL) {
ret = ENOMEM;
krb5_set_error_message(context, ret, N_("malloc: out of memory", ""));
goto fail;
}
a->padata->val = NULL;
a->padata->len = 0;
for(i = 0; i < preauth->len; i++) {
if(preauth->val[i].type == KRB5_PADATA_ENC_TIMESTAMP){
size_t j;
for(j = 0; j < preauth->val[i].info.len; j++) {
krb5_salt *sp = &salt;
if(preauth->val[i].info.val[j].salttype)
salt.salttype = *preauth->val[i].info.val[j].salttype;
else
salt.salttype = KRB5_PW_SALT;
if(preauth->val[i].info.val[j].salt)
salt.saltvalue = *preauth->val[i].info.val[j].salt;
else
if(salt.salttype == KRB5_PW_SALT)
sp = NULL;
else
krb5_data_zero(&salt.saltvalue);
ret = add_padata(context, a->padata, creds->client,
key_proc, keyseed,
&preauth->val[i].info.val[j].etype, 1,
sp);
if (ret == 0)
break;
}
}
}
} else
/* not sure this is the way to use `ptypes' */
if (ptypes == NULL || *ptypes == KRB5_PADATA_NONE)
a->padata = NULL;
else if (*ptypes == KRB5_PADATA_ENC_TIMESTAMP) {
ALLOC(a->padata, 1);
if (a->padata == NULL) {
ret = ENOMEM;
krb5_set_error_message(context, ret, N_("malloc: out of memory", ""));
goto fail;
}
a->padata->len = 0;
a->padata->val = NULL;
/* make a v5 salted pa-data */
add_padata(context, a->padata, creds->client,
key_proc, keyseed, a->req_body.etype.val,
a->req_body.etype.len, NULL);
/* make a v4 salted pa-data */
salt.salttype = KRB5_PW_SALT;
krb5_data_zero(&salt.saltvalue);
add_padata(context, a->padata, creds->client,
key_proc, keyseed, a->req_body.etype.val,
a->req_body.etype.len, &salt);
} else {
ret = KRB5_PREAUTH_BAD_TYPE;
krb5_set_error_message (context, ret,
N_("pre-auth type %d not supported", ""),
*ptypes);
goto fail;
}
return 0;
fail:
free_AS_REQ(a);
return ret;
}
static int
create_krb5_tickets (krb5_context context, krb5_keytab kt)
{
krb5_error_code ret;
krb5_keytab_entry entry;
krb5_creds cred;
krb5_enctype etype;
krb5_ccache ccache;
memset (&cred, 0, sizeof(cred));
ret = krb5_string_to_enctype (context, enc_type, &etype);
if (ret)
krb5_err (context, 1, ret, "krb5_string_to_enctype");
ret = krb5_kt_get_entry (context, kt, server_principal,
0, etype, &entry);
if (ret)
krb5_err (context, 1, ret, "krb5_kt_get_entry");
/*
* setup cred
*/
ret = krb5_copy_principal (context, client_principal, &cred.client);
if (ret)
krb5_err (context, 1, ret, "krb5_copy_principal");
ret = krb5_copy_principal (context, server_principal, &cred.server);
if (ret)
krb5_err (context, 1, ret, "krb5_copy_principal");
krb5_generate_random_keyblock(context, etype, &cred.session);
cred.times.authtime = time(NULL);
cred.times.starttime = time(NULL);
cred.times.endtime = time(NULL) + expiration_time;
cred.times.renew_till = 0;
krb5_data_zero(&cred.second_ticket);
ret = krb5_get_all_client_addrs (context, &cred.addresses);
if (ret)
krb5_err (context, 1, ret, "krb5_get_all_client_addrs");
cred.flags.b = ticket_flags;
/*
* Encode encrypted part of ticket
*/
encode_ticket (context, &entry.keyblock, etype, entry.vno, &cred);
/*
* Write to cc
*/
if (ccache_str) {
ret = krb5_cc_resolve(context, ccache_str, &ccache);
if (ret)
krb5_err (context, 1, ret, "krb5_cc_resolve");
} else {
ret = krb5_cc_default (context, &ccache);
if (ret)
krb5_err (context, 1, ret, "krb5_cc_default");
}
ret = krb5_cc_initialize (context, ccache, cred.client);
if (ret)
krb5_err (context, 1, ret, "krb5_cc_initialize");
ret = krb5_cc_store_cred (context, ccache, &cred);
if (ret)
krb5_err (context, 1, ret, "krb5_cc_store_cred");
krb5_free_cred_contents (context, &cred);
krb5_cc_close (context, ccache);
return 0;
}
static krb5_error_code
init_as_req (krb5_context context,
KDCOptions opts,
const krb5_creds *creds,
const krb5_addresses *addrs,
const krb5_enctype *etypes,
AS_REQ *a)
{
krb5_error_code ret;
memset(a, 0, sizeof(*a));
a->pvno = 5;
a->msg_type = krb_as_req;
a->req_body.kdc_options = opts;
a->req_body.cname = malloc(sizeof(*a->req_body.cname));
if (a->req_body.cname == NULL) {
ret = ENOMEM;
krb5_set_error_message(context, ret, N_("malloc: out of memory", ""));
goto fail;
}
a->req_body.sname = malloc(sizeof(*a->req_body.sname));
if (a->req_body.sname == NULL) {
ret = ENOMEM;
krb5_set_error_message(context, ret, N_("malloc: out of memory", ""));
goto fail;
}
ret = _krb5_principal2principalname (a->req_body.cname, creds->client);
if (ret)
goto fail;
ret = copy_Realm(&creds->client->realm, &a->req_body.realm);
if (ret)
goto fail;
ret = _krb5_principal2principalname (a->req_body.sname, creds->server);
if (ret)
goto fail;
if(creds->times.starttime) {
a->req_body.from = malloc(sizeof(*a->req_body.from));
if (a->req_body.from == NULL) {
ret = ENOMEM;
krb5_set_error_message(context, ret, N_("malloc: out of memory", ""));
goto fail;
}
*a->req_body.from = creds->times.starttime;
}
if(creds->times.endtime){
ALLOC(a->req_body.till, 1);
*a->req_body.till = creds->times.endtime;
}
if(creds->times.renew_till){
a->req_body.rtime = malloc(sizeof(*a->req_body.rtime));
if (a->req_body.rtime == NULL) {
ret = ENOMEM;
krb5_set_error_message(context, ret, N_("malloc: out of memory", ""));
goto fail;
}
*a->req_body.rtime = creds->times.renew_till;
}
a->req_body.nonce = 0;
ret = krb5_init_etype (context,
&a->req_body.etype.len,
&a->req_body.etype.val,
etypes);
if (ret)
goto fail;
/*
* This means no addresses
*/
if (addrs && addrs->len == 0) {
a->req_body.addresses = NULL;
} else {
a->req_body.addresses = malloc(sizeof(*a->req_body.addresses));
if (a->req_body.addresses == NULL) {
ret = ENOMEM;
krb5_set_error_message(context, ret, N_("malloc: out of memory", ""));
goto fail;
}
if (addrs)
ret = krb5_copy_addresses(context, addrs, a->req_body.addresses);
else {
ret = krb5_get_all_client_addrs (context, a->req_body.addresses);
if(ret == 0 && a->req_body.addresses->len == 0) {
free(a->req_body.addresses);
a->req_body.addresses = NULL;
}
}
if (ret)
goto fail;
}
a->req_body.enc_authorization_data = NULL;
a->req_body.additional_tickets = NULL;
a->padata = NULL;
return 0;
fail:
free_AS_REQ(a);
memset(a, 0, sizeof(*a));
return ret;
}
