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-rw-r--r--source4/auth/gensec/spnego.c1402
1 files changed, 0 insertions, 1402 deletions
diff --git a/source4/auth/gensec/spnego.c b/source4/auth/gensec/spnego.c
deleted file mode 100644
index 65738092f4..0000000000
--- a/source4/auth/gensec/spnego.c
+++ /dev/null
@@ -1,1402 +0,0 @@
-/*
- Unix SMB/CIFS implementation.
-
- RFC2478 Compliant SPNEGO implementation
-
- 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 3 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
-
-#include "includes.h"
-#include "../libcli/auth/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"
-#include "auth/gensec/gensec_toplevel_proto.h"
-#include "param/param.h"
-#include "lib/util/asn1.h"
-
-_PUBLIC_ NTSTATUS gensec_spnego_init(void);
-
-enum spnego_state_position {
- SPNEGO_SERVER_START,
- SPNEGO_CLIENT_START,
- SPNEGO_SERVER_TARG,
- SPNEGO_CLIENT_TARG,
- SPNEGO_FALLBACK,
- SPNEGO_DONE
-};
-
-struct spnego_state {
- enum spnego_message_type expected_packet;
- enum spnego_state_position state_position;
- struct gensec_security *sub_sec_security;
- bool no_response_expected;
-
- const char *neg_oid;
-
- DATA_BLOB mech_types;
-
- /*
- * The following is used to implement
- * the update token fragmentation
- */
- size_t in_needed;
- DATA_BLOB in_frag;
- size_t out_max_length;
- DATA_BLOB out_frag;
- NTSTATUS out_status;
-};
-
-
-static NTSTATUS gensec_spnego_client_start(struct gensec_security *gensec_security)
-{
- struct spnego_state *spnego_state;
-
- spnego_state = talloc_zero(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->mech_types = data_blob(NULL, 0);
- spnego_state->out_max_length = gensec_max_update_size(gensec_security);
- spnego_state->out_status = NT_STATUS_MORE_PROCESSING_REQUIRED;
-
- gensec_security->private_data = spnego_state;
- return NT_STATUS_OK;
-}
-
-static NTSTATUS gensec_spnego_server_start(struct gensec_security *gensec_security)
-{
- struct spnego_state *spnego_state;
-
- spnego_state = talloc_zero(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_SERVER_START;
- spnego_state->sub_sec_security = NULL;
- spnego_state->no_response_expected = false;
- spnego_state->mech_types = data_blob(NULL, 0);
- spnego_state->out_max_length = gensec_max_update_size(gensec_security);
- spnego_state->out_status = NT_STATUS_MORE_PROCESSING_REQUIRED;
-
- gensec_security->private_data = spnego_state;
- return NT_STATUS_OK;
-}
-
-/*
- wrappers for the spnego_*() functions
-*/
-static NTSTATUS gensec_spnego_unseal_packet(struct gensec_security *gensec_security,
- uint8_t *data, size_t length,
- const uint8_t *whole_pdu, size_t pdu_length,
- const DATA_BLOB *sig)
-{
- 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 NT_STATUS_INVALID_PARAMETER;
- }
-
- return gensec_unseal_packet(spnego_state->sub_sec_security,
- data, length,
- whole_pdu, pdu_length,
- sig);
-}
-
-static NTSTATUS gensec_spnego_check_packet(struct gensec_security *gensec_security,
- const uint8_t *data, size_t length,
- const uint8_t *whole_pdu, size_t pdu_length,
- const DATA_BLOB *sig)
-{
- 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 NT_STATUS_INVALID_PARAMETER;
- }
-
- return gensec_check_packet(spnego_state->sub_sec_security,
- data, length,
- whole_pdu, pdu_length,
- sig);
-}
-
-static NTSTATUS gensec_spnego_seal_packet(struct gensec_security *gensec_security,
- TALLOC_CTX *mem_ctx,
- uint8_t *data, size_t length,
- const uint8_t *whole_pdu, size_t pdu_length,
- DATA_BLOB *sig)
-{
- 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 NT_STATUS_INVALID_PARAMETER;
- }
-
- return gensec_seal_packet(spnego_state->sub_sec_security,
- mem_ctx,
- data, length,
- whole_pdu, pdu_length,
- sig);
-}
-
-static NTSTATUS gensec_spnego_sign_packet(struct gensec_security *gensec_security,
- TALLOC_CTX *mem_ctx,
- const uint8_t *data, size_t length,
- const uint8_t *whole_pdu, size_t pdu_length,
- DATA_BLOB *sig)
-{
- 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 NT_STATUS_INVALID_PARAMETER;
- }
-
- return gensec_sign_packet(spnego_state->sub_sec_security,
- mem_ctx,
- data, length,
- whole_pdu, pdu_length,
- sig);
-}
-
-static NTSTATUS gensec_spnego_wrap(struct gensec_security *gensec_security,
- TALLOC_CTX *mem_ctx,
- const DATA_BLOB *in,
- DATA_BLOB *out)
-{
- 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(spnego_state->sub_sec_security,
- mem_ctx, in, out);
-}
-
-static NTSTATUS gensec_spnego_unwrap(struct gensec_security *gensec_security,
- TALLOC_CTX *mem_ctx,
- const DATA_BLOB *in,
- DATA_BLOB *out)
-{
- 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(spnego_state->sub_sec_security,
- 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 = (struct spnego_state *)gensec_security->private_data;
-
- if (spnego_state->state_position != SPNEGO_DONE
- && spnego_state->state_position != SPNEGO_FALLBACK) {
- return 0;
- }
-
- 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,
- TALLOC_CTX *mem_ctx,
- DATA_BLOB *session_key)
-{
- struct spnego_state *spnego_state = (struct spnego_state *)gensec_security->private_data;
- if (!spnego_state->sub_sec_security) {
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- return gensec_session_key(spnego_state->sub_sec_security,
- mem_ctx,
- session_key);
-}
-
-static NTSTATUS gensec_spnego_session_info(struct gensec_security *gensec_security,
- TALLOC_CTX *mem_ctx,
- struct auth_session_info **session_info)
-{
- struct spnego_state *spnego_state = (struct spnego_state *)gensec_security->private_data;
- if (!spnego_state->sub_sec_security) {
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- return gensec_session_info(spnego_state->sub_sec_security,
- mem_ctx,
- session_info);
-}
-
-/** Fallback to another GENSEC mechanism, based on magic strings
- *
- * This is the 'fallback' case, where we don't get SPNEGO, and have to
- * try all the other options (and hope they all have a magic string
- * they check)
-*/
-
-static NTSTATUS gensec_spnego_server_try_fallback(struct gensec_security *gensec_security,
- struct spnego_state *spnego_state,
- struct tevent_context *ev,
- TALLOC_CTX *out_mem_ctx,
- const DATA_BLOB in, DATA_BLOB *out)
-{
- int i,j;
- 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))
- continue;
-
- if (!all_ops[i]->oid) {
- continue;
- }
-
- 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;
- }
- }
- if (is_spnego) {
- continue;
- }
-
- if (!all_ops[i]->magic) {
- continue;
- }
-
- nt_status = all_ops[i]->magic(gensec_security, &in);
- if (!NT_STATUS_IS_OK(nt_status)) {
- continue;
- }
-
- spnego_state->state_position = SPNEGO_FALLBACK;
-
- 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_ops[i]);
- if (!NT_STATUS_IS_OK(nt_status)) {
- return nt_status;
- }
- nt_status = gensec_update(spnego_state->sub_sec_security,
- ev, out_mem_ctx, in, out);
- return nt_status;
- }
- DEBUG(1, ("Failed to parse SPNEGO request\n"));
- return NT_STATUS_INVALID_PARAMETER;
-
-}
-
-/*
- Parse the netTokenInit, either from the client, to the server, or
- from the server to the client.
-*/
-
-static NTSTATUS gensec_spnego_parse_negTokenInit(struct gensec_security *gensec_security,
- struct spnego_state *spnego_state,
- TALLOC_CTX *out_mem_ctx,
- struct tevent_context *ev,
- const char **mechType,
- const DATA_BLOB unwrapped_in, DATA_BLOB *unwrapped_out)
-{
- 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(gensec_security,
- out_mem_ctx,
- mechType,
- GENSEC_OID_SPNEGO);
-
- 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) {
- uint32_t j;
- for (j=0; mechType && mechType[j]; j++) {
- for (i=0; all_sec && all_sec[i].op; i++) {
- if (strcmp(mechType[j], all_sec[i].oid) != 0) {
- continue;
- }
-
- 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;
- }
-
- if (j > 0) {
- /* no optimistic token */
- spnego_state->neg_oid = all_sec[i].oid;
- *unwrapped_out = data_blob_null;
- nt_status = NT_STATUS_MORE_PROCESSING_REQUIRED;
- break;
- }
-
- nt_status = gensec_update(spnego_state->sub_sec_security,
- out_mem_ctx,
- ev,
- 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;
- }
- if (spnego_state->sub_sec_security) {
- break;
- }
- }
-
- if (!spnego_state->sub_sec_security) {
- DEBUG(1, ("SPNEGO: Could not find a suitable mechtype in NEG_TOKEN_INIT\n"));
- return NT_STATUS_INVALID_PARAMETER;
- }
- }
-
- /* Having tried any optimistic 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;
-
- /* only get the helping start blob for the first OID */
- nt_status = gensec_update(spnego_state->sub_sec_security,
- out_mem_ctx,
- ev,
- null_data_blob,
- unwrapped_out);
-
- /* it is likely that a NULL input token will
- * 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_NO_LOGON_SERVERS) ||
- NT_STATUS_EQUAL(nt_status, NT_STATUS_TIME_DIFFERENCE_AT_DC) ||
- 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(3, ("SPNEGO(%s) NEG_TOKEN_INIT failed: %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)) {
- DEBUG(1, ("SPNEGO(%s) NEG_TOKEN_INIT failed: %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;
-
- /* 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;
- }
-
-
- return nt_status; /* OK, INVALID_PARAMETER ore MORE PROCESSING */
- }
-
- DEBUG(1, ("SPNEGO: Could not find a suitable mechtype in NEG_TOKEN_INIT\n"));
- /* we could re-negotiate here, but it would only work
- * if the client or server lied about what it could
- * support the first time. Lets keep this code to
- * reality */
-
- return nt_status;
-}
-
-/** create a negTokenInit
- *
- * This is the same packet, no matter if the client or server sends it first, but it is always the first packet
-*/
-static NTSTATUS gensec_spnego_create_negTokenInit(struct gensec_security *gensec_security,
- struct spnego_state *spnego_state,
- TALLOC_CTX *out_mem_ctx,
- struct tevent_context *ev,
- const DATA_BLOB in, DATA_BLOB *out)
-{
- int i;
- NTSTATUS nt_status = NT_STATUS_INVALID_PARAMETER;
- DATA_BLOB null_data_blob = data_blob(NULL,0);
- const char **mechTypes = NULL;
- DATA_BLOB unwrapped_out = data_blob(NULL, 0);
- const struct gensec_security_ops_wrapper *all_sec;
-
- mechTypes = gensec_security_oids(gensec_security,
- out_mem_ctx, GENSEC_OID_SPNEGO);
-
- 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);
- 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;
- }
-
- /* In the client, try and produce the first (optimistic) packet */
- if (spnego_state->state_position == SPNEGO_CLIENT_START) {
- nt_status = gensec_update(spnego_state->sub_sec_security,
- out_mem_ctx,
- ev,
- null_data_blob,
- &unwrapped_out);
-
- if (!NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)
- && !NT_STATUS_IS_OK(nt_status)) {
- DEBUG(1, ("SPNEGO(%s) creating NEG_TOKEN_INIT failed: %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;
- /* Pretend we never started it (lets the first run find some incompatible demand) */
-
- continue;
- }
- }
-
- 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 = send_mech_types;
- spnego_out.negTokenInit.reqFlags = null_data_blob;
- spnego_out.negTokenInit.reqFlagsPadding = 0;
-
- if (spnego_state->state_position == SPNEGO_SERVER_START) {
- spnego_out.negTokenInit.mechListMIC
- = data_blob_string_const(ADS_IGNORE_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) {
- DEBUG(1, ("Failed to write NEG_TOKEN_INIT\n"));
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- /* set next state */
- spnego_state->neg_oid = all_sec[i].oid;
-
- if (NT_STATUS_IS_OK(nt_status)) {
- spnego_state->no_response_expected = true;
- }
-
- return NT_STATUS_MORE_PROCESSING_REQUIRED;
- }
- talloc_free(spnego_state->sub_sec_security);
- spnego_state->sub_sec_security = NULL;
-
- DEBUG(1, ("Failed to setup SPNEGO negTokenInit request: %s\n", nt_errstr(nt_status)));
- return NT_STATUS_INVALID_PARAMETER;
-}
-
-
-/** create a server negTokenTarg
- *
- * This is the case, where the client is the first one who sends data
-*/
-
-static NTSTATUS gensec_spnego_server_negTokenTarg(struct gensec_security *gensec_security,
- struct spnego_state *spnego_state,
- TALLOC_CTX *out_mem_ctx,
- NTSTATUS nt_status,
- 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);
-
- /* compose reply */
- spnego_out.type = SPNEGO_NEG_TOKEN_TARG;
- spnego_out.negTokenTarg.responseToken = unwrapped_out;
- spnego_out.negTokenTarg.mechListMIC = null_data_blob;
- spnego_out.negTokenTarg.supportedMech = NULL;
-
- if (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
- spnego_out.negTokenTarg.supportedMech = spnego_state->neg_oid;
- spnego_out.negTokenTarg.negResult = SPNEGO_ACCEPT_INCOMPLETE;
- spnego_state->state_position = SPNEGO_SERVER_TARG;
- } else if (NT_STATUS_IS_OK(nt_status)) {
- if (unwrapped_out.data) {
- 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;
- DEBUG(2, ("SPNEGO login failed: %s\n", nt_errstr(nt_status)));
- spnego_state->state_position = SPNEGO_DONE;
- }
-
- 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;
- }
-
- spnego_state->expected_packet = SPNEGO_NEG_TOKEN_TARG;
-
- return nt_status;
-}
-
-
-static NTSTATUS gensec_spnego_update(struct gensec_security *gensec_security, TALLOC_CTX *out_mem_ctx,
- struct tevent_context *ev,
- const DATA_BLOB in, DATA_BLOB *out)
-{
- 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;
-
- ssize_t len;
-
- *out = data_blob(NULL, 0);
-
- if (!out_mem_ctx) {
- out_mem_ctx = spnego_state;
- }
-
- /* and switch into the state machine */
-
- switch (spnego_state->state_position) {
- case SPNEGO_FALLBACK:
- return gensec_update(spnego_state->sub_sec_security, ev,
- out_mem_ctx, in, out);
- case SPNEGO_SERVER_START:
- {
- NTSTATUS nt_status;
- if (in.length) {
-
- len = spnego_read_data(gensec_security, in, &spnego);
- if (len == -1) {
- return gensec_spnego_server_try_fallback(gensec_security, spnego_state,
- out_mem_ctx, ev, in, out);
- }
- /* client sent NegTargetInit, we send NegTokenTarg */
-
- /* OK, so it's real SPNEGO, check the packet's the one we expect */
- if (spnego.type != spnego_state->expected_packet) {
- DEBUG(1, ("Invalid SPNEGO request: %d, expected %d\n", spnego.type,
- spnego_state->expected_packet));
- dump_data(1, in.data, in.length);
- spnego_free_data(&spnego);
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- nt_status = gensec_spnego_parse_negTokenInit(gensec_security,
- spnego_state,
- out_mem_ctx,
- ev,
- spnego.negTokenInit.mechTypes,
- spnego.negTokenInit.mechToken,
- &unwrapped_out);
-
- nt_status = gensec_spnego_server_negTokenTarg(gensec_security,
- spnego_state,
- out_mem_ctx,
- nt_status,
- unwrapped_out,
- null_data_blob,
- out);
-
- spnego_free_data(&spnego);
-
- return nt_status;
- } else {
- nt_status = gensec_spnego_create_negTokenInit(gensec_security, spnego_state,
- out_mem_ctx, ev, in, out);
- spnego_state->state_position = SPNEGO_SERVER_START;
- spnego_state->expected_packet = SPNEGO_NEG_TOKEN_INIT;
- return nt_status;
- }
- }
-
- case SPNEGO_CLIENT_START:
- {
- /* The server offers a list of mechanisms */
-
- const char *my_mechs[] = {NULL, NULL};
- NTSTATUS nt_status = NT_STATUS_INVALID_PARAMETER;
-
- if (!in.length) {
- /* client to produce negTokenInit */
- nt_status = gensec_spnego_create_negTokenInit(gensec_security, spnego_state,
- out_mem_ctx, ev, in, out);
- spnego_state->state_position = SPNEGO_CLIENT_TARG;
- spnego_state->expected_packet = SPNEGO_NEG_TOKEN_TARG;
- return nt_status;
- }
-
- len = spnego_read_data(gensec_security, in, &spnego);
-
- if (len == -1) {
- DEBUG(1, ("Invalid SPNEGO request:\n"));
- dump_data(1, in.data, in.length);
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- /* OK, so it's real SPNEGO, check the packet's the one we expect */
- if (spnego.type != spnego_state->expected_packet) {
- DEBUG(1, ("Invalid SPNEGO request: %d, expected %d\n", spnego.type,
- spnego_state->expected_packet));
- dump_data(1, in.data, in.length);
- spnego_free_data(&spnego);
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- if (spnego.negTokenInit.targetPrincipal
- && strcmp(spnego.negTokenInit.targetPrincipal, ADS_IGNORE_PRINCIPAL) != 0) {
- DEBUG(5, ("Server claims it's principal name is %s\n", spnego.negTokenInit.targetPrincipal));
- if (lpcfg_client_use_spnego_principal(gensec_security->settings->lp_ctx)) {
- gensec_set_target_principal(gensec_security, spnego.negTokenInit.targetPrincipal);
- }
- }
-
- nt_status = gensec_spnego_parse_negTokenInit(gensec_security,
- spnego_state,
- out_mem_ctx,
- ev,
- spnego.negTokenInit.mechTypes,
- spnego.negTokenInit.mechToken,
- &unwrapped_out);
-
- if (!NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED) && !NT_STATUS_IS_OK(nt_status)) {
- spnego_free_data(&spnego);
- return nt_status;
- }
-
- my_mechs[0] = spnego_state->neg_oid;
- /* compose reply */
- spnego_out.type = SPNEGO_NEG_TOKEN_INIT;
- spnego_out.negTokenInit.mechTypes = my_mechs;
- spnego_out.negTokenInit.reqFlags = null_data_blob;
- spnego_out.negTokenInit.reqFlagsPadding = 0;
- spnego_out.negTokenInit.mechListMIC = null_data_blob;
- spnego_out.negTokenInit.mechToken = unwrapped_out;
-
- if (spnego_write_data(out_mem_ctx, out, &spnego_out) == -1) {
- DEBUG(1, ("Failed to write SPNEGO reply to NEG_TOKEN_INIT\n"));
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- /* set next state */
- spnego_state->expected_packet = SPNEGO_NEG_TOKEN_TARG;
- spnego_state->state_position = SPNEGO_CLIENT_TARG;
-
- if (NT_STATUS_IS_OK(nt_status)) {
- spnego_state->no_response_expected = true;
- }
-
- spnego_free_data(&spnego);
- return NT_STATUS_MORE_PROCESSING_REQUIRED;
- }
- case SPNEGO_SERVER_TARG:
- {
- NTSTATUS nt_status;
- bool new_spnego = false;
-
- if (!in.length) {
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- len = spnego_read_data(gensec_security, in, &spnego);
-
- if (len == -1) {
- DEBUG(1, ("Invalid SPNEGO request:\n"));
- dump_data(1, in.data, in.length);
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- /* OK, so it's real SPNEGO, check the packet's the one we expect */
- if (spnego.type != spnego_state->expected_packet) {
- DEBUG(1, ("Invalid SPNEGO request: %d, expected %d\n", spnego.type,
- spnego_state->expected_packet));
- dump_data(1, in.data, in.length);
- spnego_free_data(&spnego);
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- if (!spnego_state->sub_sec_security) {
- DEBUG(1, ("SPNEGO: Did not setup a mech in NEG_TOKEN_INIT\n"));
- spnego_free_data(&spnego);
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- nt_status = gensec_update(spnego_state->sub_sec_security,
- out_mem_ctx, ev,
- 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,
- 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,
- mech_list_mic,
- out);
-
- spnego_free_data(&spnego);
-
- return nt_status;
- }
- case SPNEGO_CLIENT_TARG:
- {
- NTSTATUS nt_status;
- if (!in.length) {
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- len = spnego_read_data(gensec_security, in, &spnego);
-
- if (len == -1) {
- DEBUG(1, ("Invalid SPNEGO request:\n"));
- dump_data(1, in.data, in.length);
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- /* OK, so it's real SPNEGO, check the packet's the one we expect */
- if (spnego.type != spnego_state->expected_packet) {
- DEBUG(1, ("Invalid SPNEGO request: %d, expected %d\n", spnego.type,
- spnego_state->expected_packet));
- dump_data(1, in.data, in.length);
- spnego_free_data(&spnego);
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- if (spnego.negTokenTarg.negResult == SPNEGO_REJECT) {
- spnego_free_data(&spnego);
- return NT_STATUS_ACCESS_DENIED;
- }
-
- /* 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(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,
- gensec_security,
- &spnego_state->sub_sec_security);
- if (!NT_STATUS_IS_OK(nt_status)) {
- spnego_free_data(&spnego);
- return nt_status;
- }
- /* select the sub context */
- nt_status = gensec_start_mech_by_oid(spnego_state->sub_sec_security,
- spnego.negTokenTarg.supportedMech);
- if (!NT_STATUS_IS_OK(nt_status)) {
- spnego_free_data(&spnego);
- return nt_status;
- }
-
- nt_status = gensec_update(spnego_state->sub_sec_security,
- out_mem_ctx, ev,
- spnego.negTokenTarg.responseToken,
- &unwrapped_out);
- spnego_state->neg_oid = talloc_strdup(spnego_state, spnego.negTokenTarg.supportedMech);
- } else if (spnego_state->no_response_expected) {
- if (spnego.negTokenTarg.negResult != SPNEGO_ACCEPT_COMPLETED) {
- DEBUG(3,("GENSEC SPNEGO: client GENSEC accepted, but server rejected (bad password?)\n"));
- nt_status = NT_STATUS_INVALID_PARAMETER;
- } else if (spnego.negTokenTarg.responseToken.length) {
- DEBUG(2,("GENSEC SPNEGO: client GENSEC accepted, but server continued negotiation!\n"));
- nt_status = NT_STATUS_INVALID_PARAMETER;
- } 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,
- 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, ev,
- 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_free_data(&spnego);
-
- if (!NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)
- && !NT_STATUS_IS_OK(nt_status)) {
- DEBUG(1, ("SPNEGO(%s) login failed: %s\n",
- spnego_state->sub_sec_security->ops->name,
- nt_errstr(nt_status)));
- return nt_status;
- }
-
- 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 = 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;
- }
-
- spnego_state->state_position = SPNEGO_CLIENT_TARG;
- nt_status = NT_STATUS_MORE_PROCESSING_REQUIRED;
- } else {
-
- /* all done - server has accepted, and we agree */
- *out = null_data_blob;
-
- if (spnego.negTokenTarg.negResult != SPNEGO_ACCEPT_COMPLETED) {
- /* unless of course it did not accept */
- DEBUG(1,("gensec_update ok but not accepted\n"));
- nt_status = NT_STATUS_INVALID_PARAMETER;
- }
-
- spnego_state->state_position = SPNEGO_DONE;
- }
-
- return nt_status;
- }
- case SPNEGO_DONE:
- /* We should not be called after we are 'done' */
- return NT_STATUS_INVALID_PARAMETER;
- }
- return NT_STATUS_INVALID_PARAMETER;
-}
-
-static NTSTATUS gensec_spnego_update_in(struct gensec_security *gensec_security,
- const DATA_BLOB in, DATA_BLOB *full_in)
-{
- struct spnego_state *spnego_state = (struct spnego_state *)gensec_security->private_data;
- size_t expected;
- NTSTATUS status;
- bool ok;
-
- *full_in = data_blob_null;
-
- if (spnego_state->in_needed == 0) {
- size_t size = 0;
-
- /*
- * try to work out the size of the full
- * input token, it might be fragmented
- */
- status = asn1_peek_full_tag(in, ASN1_APPLICATION(0), &size);
- if (!NT_STATUS_IS_OK(status) &&
- !NT_STATUS_EQUAL(status, STATUS_MORE_ENTRIES)) {
- status = asn1_peek_full_tag(in, ASN1_CONTEXT(1), &size);
- }
-
- if (NT_STATUS_IS_OK(status) ||
- NT_STATUS_EQUAL(status, STATUS_MORE_ENTRIES)) {
- spnego_state->in_needed = size;
- } else {
- /*
- * If it is not an asn1 message
- * just call the next layer.
- */
- spnego_state->in_needed = in.length;
- }
- }
-
- if (spnego_state->in_needed > UINT16_MAX) {
- /*
- * limit the incoming message to 0xFFFF
- * to avoid DoS attacks.
- */
- return NT_STATUS_INVALID_BUFFER_SIZE;
- }
-
- if ((spnego_state->in_needed > 0) && (in.length == 0)) {
- /*
- * If we reach this, we know we got at least
- * part of an asn1 message, getting 0 means
- * the remote peer wants us to spin.
- */
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- expected = spnego_state->in_needed - spnego_state->in_frag.length;
- if (in.length > expected) {
- /*
- * we got more than expected
- */
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- if (in.length == spnego_state->in_needed) {
- /*
- * if the in.length contains the full blob
- * we are done.
- *
- * Note: this implies spnego_state->in_frag.length == 0,
- * but we do not need to check this explicitly
- * because we already know that we did not get
- * more than expected.
- */
- *full_in = in;
- return NT_STATUS_OK;
- }
-
- ok = data_blob_append(spnego_state, &spnego_state->in_frag,
- in.data, in.length);
- if (!ok) {
- return NT_STATUS_NO_MEMORY;
- }
-
- if (spnego_state->in_needed > spnego_state->in_frag.length) {
- return NT_STATUS_MORE_PROCESSING_REQUIRED;
- }
-
- *full_in = spnego_state->in_frag;
- return NT_STATUS_OK;
-}
-
-static NTSTATUS gensec_spnego_update_out(struct gensec_security *gensec_security,
- TALLOC_CTX *out_mem_ctx,
- DATA_BLOB *_out)
-{
- struct spnego_state *spnego_state = (struct spnego_state *)gensec_security->private_data;
- DATA_BLOB out = data_blob_null;
-
- *_out = data_blob_null;
-
- if (spnego_state->out_frag.length == 0) {
- return spnego_state->out_status;
- }
-
- /*
- * There is still more data to be delivered
- * to the remote peer.
- */
-
- if (spnego_state->out_frag.length <= spnego_state->out_max_length) {
- /*
- * Fast path, we can deliver everything
- */
-
- *_out = spnego_state->out_frag;
- talloc_steal(out_mem_ctx, _out->data);
- spnego_state->out_frag = data_blob_null;
- return spnego_state->out_status;
- }
-
- out = spnego_state->out_frag;
-
- /*
- * copy the remaining bytes
- */
- spnego_state->out_frag = data_blob_talloc(spnego_state,
- out.data + spnego_state->out_max_length,
- out.length - spnego_state->out_max_length);
- if (spnego_state->out_frag.data == NULL) {
- return NT_STATUS_NO_MEMORY;
- }
-
- /*
- * truncate the buffer
- */
- data_blob_realloc(spnego_state, &out, spnego_state->out_max_length);
-
- talloc_steal(out_mem_ctx, out.data);
- *_out = out;
- return NT_STATUS_MORE_PROCESSING_REQUIRED;
-}
-
-static NTSTATUS gensec_spnego_update_wrapper(struct gensec_security *gensec_security,
- TALLOC_CTX *out_mem_ctx,
- struct tevent_context *ev,
- const DATA_BLOB in, DATA_BLOB *out)
-{
- struct spnego_state *spnego_state = (struct spnego_state *)gensec_security->private_data;
- DATA_BLOB full_in = data_blob_null;
- NTSTATUS status;
-
- *out = data_blob_null;
-
- if (spnego_state->out_frag.length > 0) {
- if (in.length > 0) {
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- return gensec_spnego_update_out(gensec_security,
- out_mem_ctx,
- out);
- }
-
- status = gensec_spnego_update_in(gensec_security,
- in, &full_in);
- if (!NT_STATUS_IS_OK(status)) {
- return status;
- }
-
- status = gensec_spnego_update(gensec_security,
- spnego_state, ev,
- full_in,
- &spnego_state->out_frag);
- data_blob_free(&spnego_state->in_frag);
- spnego_state->in_needed = 0;
- if (!NT_STATUS_IS_OK(status) &&
- !NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
- return status;
- }
-
- spnego_state->out_status = status;
-
- return gensec_spnego_update_out(gensec_security,
- out_mem_ctx,
- out);
-}
-
-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 = (struct spnego_state *)gensec_security->private_data;
- if (!spnego_state->sub_sec_security) {
- return false;
- }
-
- return gensec_have_feature(spnego_state->sub_sec_security,
- feature);
-}
-
-static const char *gensec_spnego_oids[] = {
- GENSEC_OID_SPNEGO,
- NULL
-};
-
-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_wrapper,
- .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
-};
-
-_PUBLIC_ NTSTATUS gensec_spnego_init(void)
-{
- NTSTATUS ret;
- ret = gensec_register(&gensec_spnego_security_ops);
- if (!NT_STATUS_IS_OK(ret)) {
- DEBUG(0,("Failed to register '%s' gensec backend!\n",
- gensec_spnego_security_ops.name));
- return ret;
- }
-
- return ret;
-}