Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2003
Copyright (C) Andrew Bartlett <abartlet@samba.org> 2004-2005
+ Copyright (C) Stefan Metzmacher <metze@samba.org> 2004-2008
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
-#include "auth/auth.h"
+#include "auth/gensec/spnego.h"
+#include "librpc/gen_ndr/ndr_dcerpc.h"
+#include "auth/credentials/credentials.h"
+#include "auth/gensec/gensec.h"
+#include "auth/gensec/gensec_proto.h"
enum spnego_state_position {
SPNEGO_SERVER_START,
};
struct spnego_state {
- uint_t ref_count;
enum spnego_message_type expected_packet;
enum spnego_state_position state_position;
struct gensec_security *sub_sec_security;
- BOOL no_response_expected;
+ bool no_response_expected;
const char *neg_oid;
+
+ DATA_BLOB mech_types;
};
{
struct spnego_state *spnego_state;
- spnego_state = talloc(gensec_security, struct spnego_state);
+ spnego_state = talloc(gensec_security, struct spnego_state);
if (!spnego_state) {
return NT_STATUS_NO_MEMORY;
}
spnego_state->expected_packet = SPNEGO_NEG_TOKEN_INIT;
spnego_state->state_position = SPNEGO_CLIENT_START;
spnego_state->sub_sec_security = NULL;
- spnego_state->no_response_expected = False;
+ spnego_state->no_response_expected = false;
+ spnego_state->mech_types = data_blob(NULL, 0);
gensec_security->private_data = spnego_state;
return NT_STATUS_OK;
spnego_state->expected_packet = SPNEGO_NEG_TOKEN_INIT;
spnego_state->state_position = SPNEGO_SERVER_START;
spnego_state->sub_sec_security = NULL;
- spnego_state->no_response_expected = False;
+ spnego_state->no_response_expected = false;
+ spnego_state->mech_types = data_blob(NULL, 0);
gensec_security->private_data = spnego_state;
return NT_STATUS_OK;
const uint8_t *whole_pdu, size_t pdu_length,
const DATA_BLOB *sig)
{
- struct spnego_state *spnego_state = gensec_security->private_data;
+ struct spnego_state *spnego_state = (struct spnego_state *)gensec_security->private_data;
if (spnego_state->state_position != SPNEGO_DONE
&& spnego_state->state_position != SPNEGO_FALLBACK) {
const uint8_t *whole_pdu, size_t pdu_length,
const DATA_BLOB *sig)
{
- struct spnego_state *spnego_state = gensec_security->private_data;
+ struct spnego_state *spnego_state = (struct spnego_state *)gensec_security->private_data;
if (spnego_state->state_position != SPNEGO_DONE
&& spnego_state->state_position != SPNEGO_FALLBACK) {
const uint8_t *whole_pdu, size_t pdu_length,
DATA_BLOB *sig)
{
- struct spnego_state *spnego_state = gensec_security->private_data;
+ struct spnego_state *spnego_state = (struct spnego_state *)gensec_security->private_data;
if (spnego_state->state_position != SPNEGO_DONE
&& spnego_state->state_position != SPNEGO_FALLBACK) {
const uint8_t *whole_pdu, size_t pdu_length,
DATA_BLOB *sig)
{
- struct spnego_state *spnego_state = gensec_security->private_data;
+ struct spnego_state *spnego_state = (struct spnego_state *)gensec_security->private_data;
if (spnego_state->state_position != SPNEGO_DONE
&& spnego_state->state_position != SPNEGO_FALLBACK) {
const DATA_BLOB *in,
DATA_BLOB *out)
{
- struct spnego_state *spnego_state = gensec_security->private_data;
+ struct spnego_state *spnego_state = (struct spnego_state *)gensec_security->private_data;
if (spnego_state->state_position != SPNEGO_DONE
&& spnego_state->state_position != SPNEGO_FALLBACK) {
const DATA_BLOB *in,
DATA_BLOB *out)
{
- struct spnego_state *spnego_state = gensec_security->private_data;
+ struct spnego_state *spnego_state = (struct spnego_state *)gensec_security->private_data;
if (spnego_state->state_position != SPNEGO_DONE
&& spnego_state->state_position != SPNEGO_FALLBACK) {
mem_ctx, in, out);
}
+static NTSTATUS gensec_spnego_wrap_packets(struct gensec_security *gensec_security,
+ TALLOC_CTX *mem_ctx,
+ const DATA_BLOB *in,
+ DATA_BLOB *out,
+ size_t *len_processed)
+{
+ struct spnego_state *spnego_state = (struct spnego_state *)gensec_security->private_data;
+
+ if (spnego_state->state_position != SPNEGO_DONE
+ && spnego_state->state_position != SPNEGO_FALLBACK) {
+ DEBUG(1, ("gensec_spnego_wrap: wrong state for wrap\n"));
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ return gensec_wrap_packets(spnego_state->sub_sec_security,
+ mem_ctx, in, out,
+ len_processed);
+}
+
+static NTSTATUS gensec_spnego_packet_full_request(struct gensec_security *gensec_security,
+ DATA_BLOB blob, size_t *size)
+{
+ struct spnego_state *spnego_state = (struct spnego_state *)gensec_security->private_data;
+
+ if (spnego_state->state_position != SPNEGO_DONE
+ && spnego_state->state_position != SPNEGO_FALLBACK) {
+ DEBUG(1, ("gensec_spnego_unwrap: wrong state for unwrap\n"));
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ return gensec_packet_full_request(spnego_state->sub_sec_security,
+ blob, size);
+}
+
+static NTSTATUS gensec_spnego_unwrap_packets(struct gensec_security *gensec_security,
+ TALLOC_CTX *mem_ctx,
+ const DATA_BLOB *in,
+ DATA_BLOB *out,
+ size_t *len_processed)
+{
+ struct spnego_state *spnego_state = (struct spnego_state *)gensec_security->private_data;
+
+ if (spnego_state->state_position != SPNEGO_DONE
+ && spnego_state->state_position != SPNEGO_FALLBACK) {
+ DEBUG(1, ("gensec_spnego_unwrap: wrong state for unwrap\n"));
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ return gensec_unwrap_packets(spnego_state->sub_sec_security,
+ mem_ctx, in, out,
+ len_processed);
+}
+
static size_t gensec_spnego_sig_size(struct gensec_security *gensec_security, size_t data_size)
{
- struct spnego_state *spnego_state = gensec_security->private_data;
+ struct spnego_state *spnego_state = (struct spnego_state *)gensec_security->private_data;
if (spnego_state->state_position != SPNEGO_DONE
&& spnego_state->state_position != SPNEGO_FALLBACK) {
return gensec_sig_size(spnego_state->sub_sec_security, data_size);
}
+static size_t gensec_spnego_max_input_size(struct gensec_security *gensec_security)
+{
+ struct spnego_state *spnego_state = (struct spnego_state *)gensec_security->private_data;
+
+ if (spnego_state->state_position != SPNEGO_DONE
+ && spnego_state->state_position != SPNEGO_FALLBACK) {
+ return 0;
+ }
+
+ return gensec_max_input_size(spnego_state->sub_sec_security);
+}
+
+static size_t gensec_spnego_max_wrapped_size(struct gensec_security *gensec_security)
+{
+ struct spnego_state *spnego_state = (struct spnego_state *)gensec_security->private_data;
+
+ if (spnego_state->state_position != SPNEGO_DONE
+ && spnego_state->state_position != SPNEGO_FALLBACK) {
+ return 0;
+ }
+
+ return gensec_max_wrapped_size(spnego_state->sub_sec_security);
+}
+
static NTSTATUS gensec_spnego_session_key(struct gensec_security *gensec_security,
DATA_BLOB *session_key)
{
- struct spnego_state *spnego_state = gensec_security->private_data;
+ struct spnego_state *spnego_state = (struct spnego_state *)gensec_security->private_data;
if (!spnego_state->sub_sec_security) {
return NT_STATUS_INVALID_PARAMETER;
}
static NTSTATUS gensec_spnego_session_info(struct gensec_security *gensec_security,
struct auth_session_info **session_info)
{
- struct spnego_state *spnego_state = gensec_security->private_data;
+ struct spnego_state *spnego_state = (struct spnego_state *)gensec_security->private_data;
if (!spnego_state->sub_sec_security) {
return NT_STATUS_INVALID_PARAMETER;
}
const DATA_BLOB in, DATA_BLOB *out)
{
int i,j;
- int num_ops;
- const struct gensec_security_ops **all_ops = gensec_security_all(&num_ops);
- for (i=0; i < num_ops; i++) {
- BOOL is_spnego;
+ struct gensec_security_ops **all_ops
+ = gensec_security_mechs(gensec_security, out_mem_ctx);
+ for (i=0; all_ops[i]; i++) {
+ bool is_spnego;
NTSTATUS nt_status;
+
+ if (gensec_security != NULL &&
+ !gensec_security_ops_enabled(all_ops[i], gensec_security->settings->lp_ctx))
+ continue;
+
if (!all_ops[i]->oid) {
continue;
}
- is_spnego = False;
+ is_spnego = false;
for (j=0; all_ops[i]->oid[j]; j++) {
if (strcasecmp(GENSEC_OID_SPNEGO,all_ops[i]->oid[j]) == 0) {
- is_spnego = True;
+ is_spnego = true;
}
}
if (is_spnego) {
int i;
NTSTATUS nt_status = NT_STATUS_INVALID_PARAMETER;
DATA_BLOB null_data_blob = data_blob(NULL,0);
+ bool ok;
const struct gensec_security_ops_wrapper *all_sec
- = gensec_security_by_oid_list(out_mem_ctx,
+ = gensec_security_by_oid_list(gensec_security,
+ out_mem_ctx,
mechType,
GENSEC_OID_SPNEGO);
- for (i=0; all_sec && all_sec[i].op; i++) {
- nt_status = gensec_subcontext_start(spnego_state,
- gensec_security,
- &spnego_state->sub_sec_security);
- if (!NT_STATUS_IS_OK(nt_status)) {
- return nt_status;
- }
- /* select the sub context */
- nt_status = gensec_start_mech_by_ops(spnego_state->sub_sec_security,
- all_sec[i].op);
- if (!NT_STATUS_IS_OK(nt_status)) {
- talloc_free(spnego_state->sub_sec_security);
- spnego_state->sub_sec_security = NULL;
- continue;
+
+ ok = spnego_write_mech_types(spnego_state,
+ mechType,
+ &spnego_state->mech_types);
+ if (!ok) {
+ DEBUG(1, ("SPNEGO: Failed to write mechTypes\n"));
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ if (spnego_state->state_position == SPNEGO_SERVER_START) {
+ for (i=0; all_sec && all_sec[i].op; i++) {
+ /* optomisitic token */
+ if (strcmp(all_sec[i].oid, mechType[0]) == 0) {
+ nt_status = gensec_subcontext_start(spnego_state,
+ gensec_security,
+ &spnego_state->sub_sec_security);
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ return nt_status;
+ }
+ /* select the sub context */
+ nt_status = gensec_start_mech_by_ops(spnego_state->sub_sec_security,
+ all_sec[i].op);
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ talloc_free(spnego_state->sub_sec_security);
+ spnego_state->sub_sec_security = NULL;
+ break;
+ }
+
+ nt_status = gensec_update(spnego_state->sub_sec_security,
+ out_mem_ctx,
+ unwrapped_in,
+ unwrapped_out);
+ if (NT_STATUS_EQUAL(nt_status, NT_STATUS_INVALID_PARAMETER) ||
+ NT_STATUS_EQUAL(nt_status, NT_STATUS_CANT_ACCESS_DOMAIN_INFO)) {
+ /* Pretend we never started it (lets the first run find some incompatible demand) */
+
+ DEBUG(1, ("SPNEGO(%s) NEG_TOKEN_INIT failed to parse contents: %s\n",
+ spnego_state->sub_sec_security->ops->name, nt_errstr(nt_status)));
+ talloc_free(spnego_state->sub_sec_security);
+ spnego_state->sub_sec_security = NULL;
+ break;
+ }
+
+ spnego_state->neg_oid = all_sec[i].oid;
+ break;
+ }
}
+ }
+
+ /* Having tried any optomisitc token from the client (if we
+ * were the server), if we didn't get anywhere, walk our list
+ * in our preference order */
+
+ if (!spnego_state->sub_sec_security) {
+ for (i=0; all_sec && all_sec[i].op; i++) {
+ nt_status = gensec_subcontext_start(spnego_state,
+ gensec_security,
+ &spnego_state->sub_sec_security);
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ return nt_status;
+ }
+ /* select the sub context */
+ nt_status = gensec_start_mech_by_ops(spnego_state->sub_sec_security,
+ all_sec[i].op);
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ talloc_free(spnego_state->sub_sec_security);
+ spnego_state->sub_sec_security = NULL;
+ continue;
+ }
+
+ spnego_state->neg_oid = all_sec[i].oid;
- if ((i == 0) && (strcmp(all_sec[0].oid, mechType[0]) == 0)) {
- nt_status = gensec_update(spnego_state->sub_sec_security,
- out_mem_ctx,
- unwrapped_in,
- unwrapped_out);
- } else {
/* only get the helping start blob for the first OID */
nt_status = gensec_update(spnego_state->sub_sec_security,
out_mem_ctx,
null_data_blob,
unwrapped_out);
+
/* it is likely that a NULL input token will
- * not be liked by most server mechs, but this
- * does the right thing in the CIFS client.
- * just push us along the merry-go-round
- * again, and hope for better luck next
- * time */
-
- if (NT_STATUS_EQUAL(nt_status, NT_STATUS_INVALID_PARAMETER)) {
- *unwrapped_out = data_blob(NULL, 0);
- nt_status = NT_STATUS_MORE_PROCESSING_REQUIRED;
+ * not be liked by most server mechs, but if
+ * we are in the client, we want the first
+ * update packet to be able to abort the use
+ * of this mech */
+ if (spnego_state->state_position != SPNEGO_SERVER_START) {
+ if (NT_STATUS_EQUAL(nt_status, NT_STATUS_INVALID_PARAMETER) ||
+ NT_STATUS_EQUAL(nt_status, NT_STATUS_CANT_ACCESS_DOMAIN_INFO)) {
+ /* Pretend we never started it (lets the first run find some incompatible demand) */
+
+ DEBUG(1, ("SPNEGO(%s) NEG_TOKEN_INIT failed to parse: %s\n",
+ spnego_state->sub_sec_security->ops->name, nt_errstr(nt_status)));
+ talloc_free(spnego_state->sub_sec_security);
+ spnego_state->sub_sec_security = NULL;
+ continue;
+ }
}
+
+ break;
}
-
+ }
+
+ if (spnego_state->sub_sec_security) {
+ /* it is likely that a NULL input token will
+ * not be liked by most server mechs, but this
+ * does the right thing in the CIFS client.
+ * just push us along the merry-go-round
+ * again, and hope for better luck next
+ * time */
+
+ if (NT_STATUS_EQUAL(nt_status, NT_STATUS_INVALID_PARAMETER)) {
+ *unwrapped_out = data_blob(NULL, 0);
+ nt_status = NT_STATUS_MORE_PROCESSING_REQUIRED;
+ }
+
if (!NT_STATUS_EQUAL(nt_status, NT_STATUS_INVALID_PARAMETER)
&& !NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)
&& !NT_STATUS_IS_OK(nt_status)) {
spnego_state->sub_sec_security->ops->name, nt_errstr(nt_status)));
talloc_free(spnego_state->sub_sec_security);
spnego_state->sub_sec_security = NULL;
-
+
/* We started the mech correctly, and the
* input from the other side was valid.
* Return the error (say bad password, invalid
* ticket) */
return nt_status;
-
- } else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_INVALID_PARAMETER)) {
- /* Pretend we never started it (lets the first run find some incompatible demand) */
-
- DEBUG(1, ("SPNEGO(%s) NEG_TOKEN_INIT failed to parse: %s\n",
- spnego_state->sub_sec_security->ops->name, nt_errstr(nt_status)));
- talloc_free(spnego_state->sub_sec_security);
- spnego_state->sub_sec_security = NULL;
- continue;
}
-
- spnego_state->neg_oid = all_sec[i].oid;
-
+
+
return nt_status; /* OK, INVALID_PARAMETER ore MORE PROCESSING */
}
* support the first time. Lets keep this code to
* reality */
- return NT_STATUS_INVALID_PARAMETER;
+ return nt_status;
}
/** create a negTokenInit
const char **mechTypes = NULL;
DATA_BLOB unwrapped_out = data_blob(NULL, 0);
const struct gensec_security_ops_wrapper *all_sec;
+ const char *principal = NULL;
- mechTypes = gensec_security_oids(out_mem_ctx, GENSEC_OID_SPNEGO);
+ mechTypes = gensec_security_oids(gensec_security,
+ out_mem_ctx, GENSEC_OID_SPNEGO);
- all_sec = gensec_security_by_oid_list(out_mem_ctx,
+ all_sec = gensec_security_by_oid_list(gensec_security,
+ out_mem_ctx,
mechTypes,
GENSEC_OID_SPNEGO);
for (i=0; all_sec && all_sec[i].op; i++) {
struct spnego_data spnego_out;
+ const char **send_mech_types;
+ bool ok;
+
nt_status = gensec_subcontext_start(spnego_state,
gensec_security,
&spnego_state->sub_sec_security);
}
spnego_out.type = SPNEGO_NEG_TOKEN_INIT;
-
+
+ send_mech_types = gensec_security_oids_from_ops_wrapped(out_mem_ctx,
+ &all_sec[i]);
+
+ ok = spnego_write_mech_types(spnego_state,
+ send_mech_types,
+ &spnego_state->mech_types);
+ if (!ok) {
+ DEBUG(1, ("SPNEGO: Failed to write mechTypes\n"));
+ return NT_STATUS_NO_MEMORY;
+ }
+
/* List the remaining mechs as options */
- spnego_out.negTokenInit.mechTypes = gensec_security_oids_from_ops_wrapped(out_mem_ctx,
- &all_sec[i]);
+ spnego_out.negTokenInit.mechTypes = send_mech_types;
spnego_out.negTokenInit.reqFlags = 0;
if (spnego_state->state_position == SPNEGO_SERVER_START) {
+ /* server credentials */
+ struct cli_credentials *creds = gensec_get_credentials(gensec_security);
+ if (creds) {
+ principal = cli_credentials_get_principal(creds, out_mem_ctx);
+ }
+ }
+ if (principal) {
spnego_out.negTokenInit.mechListMIC
- = data_blob_string_const(talloc_asprintf(out_mem_ctx, "%s$@%s", lp_netbios_name(), lp_realm()));
+ = data_blob_string_const(principal);
} else {
spnego_out.negTokenInit.mechListMIC = null_data_blob;
}
+
spnego_out.negTokenInit.mechToken = unwrapped_out;
if (spnego_write_data(out_mem_ctx, out, &spnego_out) == -1) {
}
/* set next state */
- spnego_state->expected_packet = SPNEGO_NEG_TOKEN_TARG;
spnego_state->neg_oid = all_sec[i].oid;
if (NT_STATUS_IS_OK(nt_status)) {
- spnego_state->no_response_expected = True;
+ spnego_state->no_response_expected = true;
}
return NT_STATUS_MORE_PROCESSING_REQUIRED;
struct spnego_state *spnego_state,
TALLOC_CTX *out_mem_ctx,
NTSTATUS nt_status,
- const DATA_BLOB unwrapped_out, DATA_BLOB *out)
+ const DATA_BLOB unwrapped_out,
+ DATA_BLOB mech_list_mic,
+ DATA_BLOB *out)
{
struct spnego_data spnego_out;
DATA_BLOB null_data_blob = data_blob(NULL, 0);
spnego_out.negTokenTarg.supportedMech = spnego_state->neg_oid;
}
spnego_out.negTokenTarg.negResult = SPNEGO_ACCEPT_COMPLETED;
+ spnego_out.negTokenTarg.mechListMIC = mech_list_mic;
spnego_state->state_position = SPNEGO_DONE;
} else {
spnego_out.negTokenTarg.negResult = SPNEGO_REJECT;
static NTSTATUS gensec_spnego_update(struct gensec_security *gensec_security, TALLOC_CTX *out_mem_ctx,
const DATA_BLOB in, DATA_BLOB *out)
{
- struct spnego_state *spnego_state = gensec_security->private_data;
+ struct spnego_state *spnego_state = (struct spnego_state *)gensec_security->private_data;
DATA_BLOB null_data_blob = data_blob(NULL, 0);
+ DATA_BLOB mech_list_mic = data_blob(NULL, 0);
DATA_BLOB unwrapped_out = data_blob(NULL, 0);
struct spnego_data spnego_out;
struct spnego_data spnego;
NTSTATUS nt_status;
if (in.length) {
- len = spnego_read_data(in, &spnego);
+ len = spnego_read_data(gensec_security, in, &spnego);
if (len == -1) {
return gensec_spnego_server_try_fallback(gensec_security, spnego_state,
out_mem_ctx, in, out);
spnego_state,
out_mem_ctx,
nt_status,
- unwrapped_out,
+ unwrapped_out,
+ null_data_blob,
out);
spnego_free_data(&spnego);
} else {
nt_status = gensec_spnego_create_negTokenInit(gensec_security, spnego_state,
out_mem_ctx, in, out);
- spnego_state->state_position = SPNEGO_SERVER_TARG;
+ spnego_state->state_position = SPNEGO_SERVER_START;
+ spnego_state->expected_packet = SPNEGO_NEG_TOKEN_INIT;
return nt_status;
}
}
nt_status = gensec_spnego_create_negTokenInit(gensec_security, spnego_state,
out_mem_ctx, in, out);
spnego_state->state_position = SPNEGO_CLIENT_TARG;
+ spnego_state->expected_packet = SPNEGO_NEG_TOKEN_TARG;
return nt_status;
}
- len = spnego_read_data(in, &spnego);
+ len = spnego_read_data(gensec_security, in, &spnego);
if (len == -1) {
DEBUG(1, ("Invalid SPNEGO request:\n"));
spnego_state->state_position = SPNEGO_CLIENT_TARG;
if (NT_STATUS_IS_OK(nt_status)) {
- spnego_state->no_response_expected = True;
+ spnego_state->no_response_expected = true;
}
spnego_free_data(&spnego);
case SPNEGO_SERVER_TARG:
{
NTSTATUS nt_status;
+ bool new_spnego = false;
+
if (!in.length) {
return NT_STATUS_INVALID_PARAMETER;
}
- len = spnego_read_data(in, &spnego);
+ len = spnego_read_data(gensec_security, in, &spnego);
if (len == -1) {
DEBUG(1, ("Invalid SPNEGO request:\n"));
out_mem_ctx,
spnego.negTokenTarg.responseToken,
&unwrapped_out);
+ if (NT_STATUS_IS_OK(nt_status) && spnego.negTokenTarg.mechListMIC.length > 0) {
+ new_spnego = true;
+ nt_status = gensec_check_packet(spnego_state->sub_sec_security,
+ out_mem_ctx,
+ spnego_state->mech_types.data,
+ spnego_state->mech_types.length,
+ spnego_state->mech_types.data,
+ spnego_state->mech_types.length,
+ &spnego.negTokenTarg.mechListMIC);
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ DEBUG(2,("GENSEC SPNEGO: failed to verify mechListMIC: %s\n",
+ nt_errstr(nt_status)));
+ }
+ }
+ if (NT_STATUS_IS_OK(nt_status) && new_spnego) {
+ nt_status = gensec_sign_packet(spnego_state->sub_sec_security,
+ out_mem_ctx,
+ spnego_state->mech_types.data,
+ spnego_state->mech_types.length,
+ spnego_state->mech_types.data,
+ spnego_state->mech_types.length,
+ &mech_list_mic);
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ DEBUG(2,("GENSEC SPNEGO: failed to sign mechListMIC: %s\n",
+ nt_errstr(nt_status)));
+ }
+ }
nt_status = gensec_spnego_server_negTokenTarg(gensec_security,
spnego_state,
out_mem_ctx,
nt_status,
- unwrapped_out,
+ unwrapped_out,
+ mech_list_mic,
out);
spnego_free_data(&spnego);
return NT_STATUS_INVALID_PARAMETER;
}
- len = spnego_read_data(in, &spnego);
+ len = spnego_read_data(gensec_security, in, &spnego);
if (len == -1) {
DEBUG(1, ("Invalid SPNEGO request:\n"));
/* Server didn't like our choice of mech, and chose something else */
if ((spnego.negTokenTarg.negResult == SPNEGO_ACCEPT_INCOMPLETE) &&
+ spnego.negTokenTarg.supportedMech &&
strcmp(spnego.negTokenTarg.supportedMech, spnego_state->neg_oid) != 0) {
DEBUG(3,("GENSEC SPNEGO: client preferred mech (%s) not accepted, server wants: %s\n",
- gensec_get_name_by_oid(spnego.negTokenTarg.supportedMech),
- gensec_get_name_by_oid(spnego_state->neg_oid)));
+ gensec_get_name_by_oid(gensec_security, spnego.negTokenTarg.supportedMech),
+ gensec_get_name_by_oid(gensec_security, spnego_state->neg_oid)));
talloc_free(spnego_state->sub_sec_security);
nt_status = gensec_subcontext_start(spnego_state,
} else {
nt_status = NT_STATUS_OK;
}
+ if (NT_STATUS_IS_OK(nt_status) && spnego.negTokenTarg.mechListMIC.length > 0) {
+ nt_status = gensec_check_packet(spnego_state->sub_sec_security,
+ out_mem_ctx,
+ spnego_state->mech_types.data,
+ spnego_state->mech_types.length,
+ spnego_state->mech_types.data,
+ spnego_state->mech_types.length,
+ &spnego.negTokenTarg.mechListMIC);
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ DEBUG(2,("GENSEC SPNEGO: failed to verify mechListMIC: %s\n",
+ nt_errstr(nt_status)));
+ }
+ }
} else {
+ bool new_spnego = false;
+
nt_status = gensec_update(spnego_state->sub_sec_security,
out_mem_ctx,
spnego.negTokenTarg.responseToken,
&unwrapped_out);
+ if (NT_STATUS_IS_OK(nt_status)
+ && spnego.negTokenTarg.negResult != SPNEGO_ACCEPT_COMPLETED) {
+ new_spnego = gensec_have_feature(spnego_state->sub_sec_security,
+ GENSEC_FEATURE_NEW_SPNEGO);
+ }
+ if (NT_STATUS_IS_OK(nt_status) && new_spnego) {
+ nt_status = gensec_sign_packet(spnego_state->sub_sec_security,
+ out_mem_ctx,
+ spnego_state->mech_types.data,
+ spnego_state->mech_types.length,
+ spnego_state->mech_types.data,
+ spnego_state->mech_types.length,
+ &mech_list_mic);
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ DEBUG(2,("GENSEC SPNEGO: failed to sign mechListMIC: %s\n",
+ nt_errstr(nt_status)));
+ }
+ }
if (NT_STATUS_IS_OK(nt_status)) {
- spnego_state->no_response_expected = True;
+ spnego_state->no_response_expected = true;
}
}
return nt_status;
}
- if (unwrapped_out.length) {
+ if (unwrapped_out.length || mech_list_mic.length) {
/* compose reply */
spnego_out.type = SPNEGO_NEG_TOKEN_TARG;
spnego_out.negTokenTarg.negResult = SPNEGO_NONE_RESULT;
spnego_out.negTokenTarg.supportedMech = NULL;
spnego_out.negTokenTarg.responseToken = unwrapped_out;
- spnego_out.negTokenTarg.mechListMIC = null_data_blob;
+ spnego_out.negTokenTarg.mechListMIC = mech_list_mic;
if (spnego_write_data(out_mem_ctx, out, &spnego_out) == -1) {
DEBUG(1, ("Failed to write SPNEGO reply to NEG_TOKEN_TARG\n"));
return NT_STATUS_INVALID_PARAMETER;
}
-static BOOL gensec_spnego_have_feature(struct gensec_security *gensec_security,
+static void gensec_spnego_want_feature(struct gensec_security *gensec_security,
+ uint32_t feature)
+{
+ struct spnego_state *spnego_state = (struct spnego_state *)gensec_security->private_data;
+
+ if (!spnego_state || !spnego_state->sub_sec_security) {
+ gensec_security->want_features |= feature;
+ return;
+ }
+
+ gensec_want_feature(spnego_state->sub_sec_security,
+ feature);
+}
+
+static bool gensec_spnego_have_feature(struct gensec_security *gensec_security,
uint32_t feature)
{
- struct spnego_state *spnego_state = gensec_security->private_data;
+ struct spnego_state *spnego_state = (struct spnego_state *)gensec_security->private_data;
if (!spnego_state->sub_sec_security) {
- return False;
+ return false;
}
return gensec_have_feature(spnego_state->sub_sec_security,
};
static const struct gensec_security_ops gensec_spnego_security_ops = {
- .name = "spnego",
- .sasl_name = "GSS-SPNEGO",
- .auth_type = DCERPC_AUTH_TYPE_SPNEGO,
- .oid = gensec_spnego_oids,
- .client_start = gensec_spnego_client_start,
- .server_start = gensec_spnego_server_start,
- .update = gensec_spnego_update,
- .seal_packet = gensec_spnego_seal_packet,
- .sign_packet = gensec_spnego_sign_packet,
- .sig_size = gensec_spnego_sig_size,
- .check_packet = gensec_spnego_check_packet,
- .unseal_packet = gensec_spnego_unseal_packet,
- .wrap = gensec_spnego_wrap,
- .unwrap = gensec_spnego_unwrap,
- .session_key = gensec_spnego_session_key,
- .session_info = gensec_spnego_session_info,
- .have_feature = gensec_spnego_have_feature,
- .enabled = True
+ .name = "spnego",
+ .sasl_name = "GSS-SPNEGO",
+ .auth_type = DCERPC_AUTH_TYPE_SPNEGO,
+ .oid = gensec_spnego_oids,
+ .client_start = gensec_spnego_client_start,
+ .server_start = gensec_spnego_server_start,
+ .update = gensec_spnego_update,
+ .seal_packet = gensec_spnego_seal_packet,
+ .sign_packet = gensec_spnego_sign_packet,
+ .sig_size = gensec_spnego_sig_size,
+ .max_wrapped_size = gensec_spnego_max_wrapped_size,
+ .max_input_size = gensec_spnego_max_input_size,
+ .check_packet = gensec_spnego_check_packet,
+ .unseal_packet = gensec_spnego_unseal_packet,
+ .packet_full_request = gensec_spnego_packet_full_request,
+ .wrap = gensec_spnego_wrap,
+ .unwrap = gensec_spnego_unwrap,
+ .wrap_packets = gensec_spnego_wrap_packets,
+ .unwrap_packets = gensec_spnego_unwrap_packets,
+ .session_key = gensec_spnego_session_key,
+ .session_info = gensec_spnego_session_info,
+ .want_feature = gensec_spnego_want_feature,
+ .have_feature = gensec_spnego_have_feature,
+ .enabled = true,
+ .priority = GENSEC_SPNEGO
};
-NTSTATUS gensec_spnego_init(void)
+_PUBLIC_ NTSTATUS gensec_spnego_init(void)
{
NTSTATUS ret;
ret = gensec_register(&gensec_spnego_security_ops);
git.samba.org / ira / wip.git / blobdiff