static krb5_error_code
kdc_as_req(krb5_context context,
krb5_kdc_configuration *config,
krb5_data *req_buffer,
krb5_data *reply,
const char *from,
struct sockaddr *addr,
int datagram_reply,
int *claim)
{
struct kdc_request_desc r;
krb5_error_code ret;
size_t len;
memset(&r, 0, sizeof(r));
ret = decode_AS_REQ(req_buffer->data, req_buffer->length, &r.req, &len);
if (ret)
return ret;
r.context = context;
r.config = config;
r.request.data = req_buffer->data;
r.request.length = req_buffer->length;
*claim = 1;
ret = _kdc_as_rep(&r, reply, from, addr, datagram_reply);
free_AS_REQ(&r.req);
return ret;
}
static krb5_error_code
kdc_as_req(krb5_context context,
krb5_kdc_configuration *config,
krb5_data *req_buffer,
krb5_data *reply,
const char *from,
struct sockaddr *addr,
int datagram_reply,
int *claim)
{
krb5_error_code ret;
KDC_REQ req;
size_t len;
ret = decode_AS_REQ(req_buffer->data, req_buffer->length, &req, &len);
if (ret)
return ret;
*claim = 1;
ret = _kdc_as_rep(context, config, &req, req_buffer,
reply, from, addr, datagram_reply);
free_AS_REQ(&req);
return ret;
}
int
krb5_kdc_process_krb5_request(krb5_context context,
krb5_kdc_configuration *config,
unsigned char *buf,
size_t len,
krb5_data *reply,
const char *from,
struct sockaddr *addr,
int datagram_reply)
{
KDC_REQ req;
krb5_error_code ret;
size_t i;
gettimeofday(&_kdc_now, NULL);
if(decode_AS_REQ(buf, len, &req, &i) == 0){
krb5_data req_buffer;
req_buffer.data = buf;
req_buffer.length = len;
ret = _kdc_as_rep(context, config, &req, &req_buffer,
reply, from, addr, datagram_reply);
free_AS_REQ(&req);
return ret;
}else if(decode_TGS_REQ(buf, len, &req, &i) == 0){
ret = _kdc_tgs_rep(context, config, &req, reply, from, addr);
free_TGS_REQ(&req);
return ret;
}
return -1;
}
int
decode_AS_REQ(const unsigned char *p, size_t len, AS_REQ *data, size_t *size)
{
size_t ret = 0, reallen;
size_t l;
int e;
memset(data, 0, sizeof(*data));
reallen = 0;
e = der_match_tag_and_length (p, len, ASN1_C_APPL, CONS, 10, &reallen, &l);
FORW;
{
int dce_fix;
if((dce_fix = fix_dce(reallen, &len)) < 0)
return ASN1_BAD_FORMAT;
e = decode_KDC_REQ(p, len, data, &l);
FORW;
if(dce_fix){
e = der_match_tag_and_length (p, len, (Der_class)0, (Der_type)0, 0, &reallen, &l);
FORW;
}
}
if(size) *size = ret;
return 0;
fail:
free_AS_REQ(data);
return e;
}
int
krb5_kdc_process_request(krb5_context context,
krb5_kdc_configuration *config,
unsigned char *buf,
size_t len,
krb5_data *reply,
krb5_boolean *prependlength,
const char *from,
struct sockaddr *addr,
int datagram_reply)
{
KDC_REQ req;
Ticket ticket;
DigestREQ digestreq;
krb5_error_code ret;
size_t i;
gettimeofday(&_kdc_now, NULL);
if(decode_AS_REQ(buf, len, &req, &i) == 0){
krb5_data req_buffer;
req_buffer.data = buf;
req_buffer.length = len;
ret = _kdc_as_rep(context, config, &req, &req_buffer,
reply, from, addr, datagram_reply);
free_AS_REQ(&req);
return ret;
}else if(decode_TGS_REQ(buf, len, &req, &i) == 0){
ret = _kdc_tgs_rep(context, config, &req, reply, from, addr);
free_TGS_REQ(&req);
return ret;
}else if(decode_Ticket(buf, len, &ticket, &i) == 0){
ret = _kdc_do_524(context, config, &ticket, reply, from, addr);
free_Ticket(&ticket);
return ret;
}else if(decode_DigestREQ(buf, len, &digestreq, &i) == 0){
ret = _kdc_do_digest(context, config, &digestreq, reply, from, addr);
free_DigestREQ(&digestreq);
return ret;
} else if(_kdc_maybe_version4(buf, len)){
*prependlength = FALSE; /* elbitapmoc sdrawkcab XXX */
_kdc_do_version4(context, config, buf, len, reply, from,
(struct sockaddr_in*)addr);
return 0;
} else if (config->enable_kaserver) {
ret = _kdc_do_kaserver(context, config, buf, len, reply, from,
(struct sockaddr_in*)addr);
return ret;
}
return -1;
}
static void
free_init_creds_ctx(krb5_context context, krb5_init_creds_context ctx)
{
if (ctx->etypes)
free(ctx->etypes);
if (ctx->pre_auth_types)
free (ctx->pre_auth_types);
if (ctx->in_tkt_service)
free(ctx->in_tkt_service);
if (ctx->keytab_data)
free(ctx->keytab_data);
krb5_data_free(&ctx->req_buffer);
krb5_free_cred_contents(context, &ctx->cred);
free_METHOD_DATA(&ctx->md);
free_AS_REP(&ctx->as_rep);
free_EncKDCRepPart(&ctx->enc_part);
free_KRB_ERROR(&ctx->error);
free_AS_REQ(&ctx->as_req);
memset(ctx, 0, sizeof(*ctx));
}
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 bool torture_krb5_post_recv_test(struct torture_krb5_context *test_context, const krb5_data *recv_buf)
{
KRB_ERROR error;
size_t used;
switch (test_context->test)
{
case TORTURE_KRB5_TEST_PLAIN:
if (test_context->packet_count == 0) {
torture_assert_int_equal(test_context->tctx,
decode_KRB_ERROR(recv_buf->data, recv_buf->length, &error, &used), 0,
"decode_AS_REP failed");
torture_assert_int_equal(test_context->tctx, used, recv_buf->length, "length mismatch");
torture_assert_int_equal(test_context->tctx, error.pvno, 5, "Got wrong error.pvno");
torture_assert_int_equal(test_context->tctx, error.error_code, KRB5KDC_ERR_PREAUTH_REQUIRED - KRB5KDC_ERR_NONE,
"Got wrong error.error_code");
free_KRB_ERROR(&error);
} else if ((decode_KRB_ERROR(recv_buf->data, recv_buf->length, &error, &used) == 0)
&& (test_context->packet_count == 1)) {
torture_assert_int_equal(test_context->tctx, used, recv_buf->length, "length mismatch");
torture_assert_int_equal(test_context->tctx, error.pvno, 5, "Got wrong error.pvno");
torture_assert_int_equal(test_context->tctx, error.error_code, KRB5KRB_ERR_RESPONSE_TOO_BIG - KRB5KDC_ERR_NONE,
"Got wrong error.error_code");
free_KRB_ERROR(&error);
} else {
torture_assert_int_equal(test_context->tctx,
decode_AS_REP(recv_buf->data, recv_buf->length, &test_context->as_rep, &used), 0,
"decode_AS_REP failed");
torture_assert_int_equal(test_context->tctx, used, recv_buf->length, "length mismatch");
torture_assert_int_equal(test_context->tctx,
test_context->as_rep.pvno, 5,
"Got wrong as_rep->pvno");
torture_assert_int_equal(test_context->tctx,
test_context->as_rep.ticket.tkt_vno, 5,
"Got wrong as_rep->ticket.tkt_vno");
torture_assert(test_context->tctx,
test_context->as_rep.ticket.enc_part.kvno,
"Did not get a KVNO in test_context->as_rep.ticket.enc_part.kvno");
if (torture_setting_bool(test_context->tctx, "expect_cached_at_rodc", false)) {
torture_assert_int_not_equal(test_context->tctx,
*test_context->as_rep.ticket.enc_part.kvno & 0xFFFF0000,
0, "Did not get a RODC number in the KVNO");
} else {
torture_assert_int_equal(test_context->tctx,
*test_context->as_rep.ticket.enc_part.kvno & 0xFFFF0000,
0, "Unexpecedly got a RODC number in the KVNO");
}
free_AS_REP(&test_context->as_rep);
}
torture_assert(test_context->tctx, test_context->packet_count < 3, "too many packets");
free_AS_REQ(&test_context->as_req);
break;
/*
* Confirm correct error codes when we ask for the PAC. This behaviour is rather odd...
*/
case TORTURE_KRB5_TEST_PAC_REQUEST:
if (test_context->packet_count == 0) {
torture_assert_int_equal(test_context->tctx,
decode_KRB_ERROR(recv_buf->data, recv_buf->length, &error, &used), 0,
"decode_AS_REP failed");
torture_assert_int_equal(test_context->tctx, used, recv_buf->length, "length mismatch");
torture_assert_int_equal(test_context->tctx, error.pvno, 5, "Got wrong error.pvno");
torture_assert_int_equal(test_context->tctx, error.error_code, KRB5KRB_ERR_RESPONSE_TOO_BIG - KRB5KDC_ERR_NONE,
"Got wrong error.error_code");
free_KRB_ERROR(&error);
} else if (test_context->packet_count == 1) {
torture_assert_int_equal(test_context->tctx,
decode_KRB_ERROR(recv_buf->data, recv_buf->length, &error, &used), 0,
"decode_AS_REP failed");
torture_assert_int_equal(test_context->tctx, used, recv_buf->length, "length mismatch");
torture_assert_int_equal(test_context->tctx, error.pvno, 5, "Got wrong error.pvno");
torture_assert_int_equal(test_context->tctx, error.error_code, KRB5KDC_ERR_PREAUTH_REQUIRED - KRB5KDC_ERR_NONE,
"Got wrong error.error_code");
free_KRB_ERROR(&error);
} else if ((decode_KRB_ERROR(recv_buf->data, recv_buf->length, &error, &used) == 0)
&& (test_context->packet_count == 2)) {
torture_assert_int_equal(test_context->tctx, used, recv_buf->length, "length mismatch");
torture_assert_int_equal(test_context->tctx, error.pvno, 5, "Got wrong error.pvno");
torture_assert_int_equal(test_context->tctx, error.error_code, KRB5KRB_ERR_RESPONSE_TOO_BIG - KRB5KDC_ERR_NONE,
"Got wrong error.error_code");
free_KRB_ERROR(&error);
} else {
torture_assert_int_equal(test_context->tctx,
decode_AS_REP(recv_buf->data, recv_buf->length, &test_context->as_rep, &used), 0,
"decode_AS_REP failed");
torture_assert_int_equal(test_context->tctx, used, recv_buf->length, "length mismatch");
torture_assert_int_equal(test_context->tctx, test_context->as_rep.pvno, 5, "Got wrong as_rep->pvno");
free_AS_REP(&test_context->as_rep);
}
torture_assert(test_context->tctx, test_context->packet_count < 3, "too many packets");
free_AS_REQ(&test_context->as_req);
break;
/*
* Confirm correct error codes when we deliberatly send the wrong password
*/
case TORTURE_KRB5_TEST_BREAK_PW:
if (test_context->packet_count == 0) {
torture_assert_int_equal(test_context->tctx,
decode_KRB_ERROR(recv_buf->data, recv_buf->length, &error, &used), 0,
"decode_AS_REP failed");
torture_assert_int_equal(test_context->tctx, used, recv_buf->length, "length mismatch");
torture_assert_int_equal(test_context->tctx, error.pvno, 5, "Got wrong error.pvno");
torture_assert_int_equal(test_context->tctx, error.error_code, KRB5KDC_ERR_PREAUTH_REQUIRED - KRB5KDC_ERR_NONE,
"Got wrong error.error_code");
free_KRB_ERROR(&error);
} else if (test_context->packet_count == 1) {
torture_assert_int_equal(test_context->tctx,
decode_KRB_ERROR(recv_buf->data, recv_buf->length, &error, &used), 0,
"decode_AS_REP failed");
torture_assert_int_equal(test_context->tctx, used, recv_buf->length, "length mismatch");
torture_assert_int_equal(test_context->tctx, error.pvno, 5, "Got wrong error.pvno");
torture_assert_int_equal(test_context->tctx, error.error_code, KRB5KDC_ERR_PREAUTH_FAILED - KRB5KDC_ERR_NONE,
"Got wrong error.error_code");
free_KRB_ERROR(&error);
}
torture_assert(test_context->tctx, test_context->packet_count < 2, "too many packets");
free_AS_REQ(&test_context->as_req);
break;
/*
* Confirm correct error codes when we deliberatly skew the client clock
*/
case TORTURE_KRB5_TEST_CLOCK_SKEW:
if (test_context->packet_count == 0) {
torture_assert_int_equal(test_context->tctx,
decode_KRB_ERROR(recv_buf->data, recv_buf->length, &error, &used), 0,
"decode_AS_REP failed");
torture_assert_int_equal(test_context->tctx, used, recv_buf->length, "length mismatch");
torture_assert_int_equal(test_context->tctx, error.pvno, 5, "Got wrong error.pvno");
torture_assert_int_equal(test_context->tctx, error.error_code, KRB5KDC_ERR_PREAUTH_REQUIRED - KRB5KDC_ERR_NONE,
"Got wrong error.error_code");
free_KRB_ERROR(&error);
} else if (test_context->packet_count == 1) {
torture_assert_int_equal(test_context->tctx,
decode_KRB_ERROR(recv_buf->data, recv_buf->length, &error, &used), 0,
"decode_AS_REP failed");
torture_assert_int_equal(test_context->tctx, used, recv_buf->length, "length mismatch");
torture_assert_int_equal(test_context->tctx, error.pvno, 5, "Got wrong error.pvno");
torture_assert_int_equal(test_context->tctx, error.error_code, KRB5KRB_AP_ERR_SKEW - KRB5KDC_ERR_NONE,
"Got wrong error.error_code");
free_KRB_ERROR(&error);
}
torture_assert(test_context->tctx, test_context->packet_count < 2, "too many packets");
free_AS_REQ(&test_context->as_req);
break;
}
return true;
}
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;
}
krb5_error_code KRB5_LIB_FUNCTION
krb5_get_in_cred(krb5_context context,
krb5_flags options,
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,
krb5_decrypt_proc decrypt_proc,
krb5_const_pointer decryptarg,
krb5_creds *creds,
krb5_kdc_rep *ret_as_reply)
{
krb5_error_code ret;
AS_REQ a;
krb5_kdc_rep rep;
krb5_data req, resp;
size_t len;
krb5_salt salt;
krb5_keyblock *key;
size_t size;
KDCOptions opts;
PA_DATA *pa;
krb5_enctype etype;
krb5_preauthdata *my_preauth = NULL;
unsigned nonce;
int done;
opts = int2KDCOptions(options);
krb5_generate_random_block (&nonce, sizeof(nonce));
nonce &= 0xffffffff;
do {
done = 1;
ret = init_as_req (context,
opts,
creds,
addrs,
etypes,
ptypes,
preauth,
key_proc,
keyseed,
nonce,
&a);
if (my_preauth) {
free_ETYPE_INFO(&my_preauth->val[0].info);
free (my_preauth->val);
my_preauth = NULL;
}
if (ret)
return ret;
ASN1_MALLOC_ENCODE(AS_REQ, req.data, req.length, &a, &len, ret);
free_AS_REQ(&a);
if (ret)
return ret;
if(len != req.length)
krb5_abortx(context, "internal error in ASN.1 encoder");
ret = krb5_sendto_kdc (context, &req, &creds->client->realm, &resp);
krb5_data_free(&req);
if (ret)
return ret;
memset (&rep, 0, sizeof(rep));
ret = decode_AS_REP(resp.data, resp.length, &rep.kdc_rep, &size);
if(ret) {
/* let's try to parse it as a KRB-ERROR */
KRB_ERROR error;
int ret2;
ret2 = krb5_rd_error(context, &resp, &error);
if(ret2 && resp.data && ((char*)resp.data)[0] == 4)
ret = KRB5KRB_AP_ERR_V4_REPLY;
krb5_data_free(&resp);
if (ret2 == 0) {
ret = krb5_error_from_rd_error(context, &error, creds);
/* if no preauth was set and KDC requires it, give it
one more try */
if (!ptypes && !preauth
&& ret == KRB5KDC_ERR_PREAUTH_REQUIRED
#if 0
|| ret == KRB5KDC_ERR_BADOPTION
#endif
&& set_ptypes(context, &error, &ptypes, &my_preauth)) {
done = 0;
preauth = my_preauth;
krb5_free_error_contents(context, &error);
krb5_clear_error_string(context);
continue;
}
if(ret_as_reply)
ret_as_reply->error = error;
else
free_KRB_ERROR (&error);
return ret;
}
return ret;
}
krb5_data_free(&resp);
} while(!done);
pa = NULL;
etype = rep.kdc_rep.enc_part.etype;
if(rep.kdc_rep.padata){
int i = 0;
pa = krb5_find_padata(rep.kdc_rep.padata->val, rep.kdc_rep.padata->len,
KRB5_PADATA_PW_SALT, &i);
if(pa == NULL) {
i = 0;
pa = krb5_find_padata(rep.kdc_rep.padata->val,
rep.kdc_rep.padata->len,
KRB5_PADATA_AFS3_SALT, &i);
}
}
if(pa) {
salt.salttype = pa->padata_type;
salt.saltvalue = pa->padata_value;
ret = (*key_proc)(context, etype, salt, keyseed, &key);
} else {
/* make a v5 salted pa-data */
ret = krb5_get_pw_salt (context, creds->client, &salt);
if (ret)
goto out;
ret = (*key_proc)(context, etype, salt, keyseed, &key);
krb5_free_salt(context, salt);
}
if (ret)
goto out;
{
unsigned flags = 0;
if (opts.request_anonymous)
flags |= EXTRACT_TICKET_ALLOW_SERVER_MISMATCH;
ret = _krb5_extract_ticket(context,
&rep,
creds,
key,
keyseed,
KRB5_KU_AS_REP_ENC_PART,
NULL,
nonce,
flags,
decrypt_proc,
decryptarg);
}
memset (key->keyvalue.data, 0, key->keyvalue.length);
krb5_free_keyblock_contents (context, key);
free (key);
out:
if (ret == 0 && ret_as_reply)
*ret_as_reply = rep;
else
krb5_free_kdc_rep (context, &rep);
return ret;
}
