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
*/
#include "includes.h"
-#include "auth/gensec/spnego.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/socket.h"
+#include "auth/gensec/gensec_proto.h"
+#include "auth/gensec/gensec_toplevel_proto.h"
+#include "param/param.h"
+
+_PUBLIC_ NTSTATUS gensec_spnego_init(void);
enum spnego_state_position {
SPNEGO_SERVER_START,
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;
wrappers for the spnego_*() functions
*/
static NTSTATUS gensec_spnego_unseal_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,
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) {
}
return gensec_unseal_packet(spnego_state->sub_sec_security,
- mem_ctx,
data, length,
whole_pdu, pdu_length,
sig);
}
static NTSTATUS gensec_spnego_check_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,
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) {
}
return gensec_check_packet(spnego_state->sub_sec_security,
- mem_ctx,
data, length,
whole_pdu, pdu_length,
sig);
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) {
DATA_BLOB *out,
size_t *len_processed)
{
- 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) {
static NTSTATUS gensec_spnego_packet_full_request(struct gensec_security *gensec_security,
DATA_BLOB blob, size_t *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) {
DATA_BLOB *out,
size_t *len_processed)
{
- 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) {
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) {
static size_t gensec_spnego_max_input_size(struct gensec_security *gensec_security)
{
- 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) {
static size_t gensec_spnego_max_wrapped_size(struct gensec_security *gensec_security)
{
- 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) {
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;
}
struct gensec_security_ops **all_ops
= gensec_security_mechs(gensec_security, out_mem_ctx);
for (i=0; all_ops[i]; i++) {
- BOOL is_spnego;
+ 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;
+ 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(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) {
- for (i=0; all_sec && all_sec[i].op; i++) {
- /* optomisitic token */
- if (strcmp(all_sec[i].oid, mechType[0]) == 0) {
+ uint32_t j;
+ for (j=0; mechType && mechType[j]; j++) {
+ for (i=0; all_sec && all_sec[i].op; i++) {
nt_status = gensec_subcontext_start(spnego_state,
gensec_security,
&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,
unwrapped_in,
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 optomisitc token from the client (if we
+ /* 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 */
* 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) */
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(gensec_security,
out_mem_ctx, GENSEC_OID_SPNEGO);
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.reqFlags = 0;
+ 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) {
- /* server credentails */
- 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(principal);
+ = data_blob_string_const(ADS_IGNORE_PRINCIPAL);
} else {
spnego_out.negTokenInit.mechListMIC = null_data_blob;
}
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;
spnego_state,
out_mem_ctx,
nt_status,
- unwrapped_out,
+ unwrapped_out,
+ null_data_blob,
out);
spnego_free_data(&spnego);
return NT_STATUS_INVALID_PARAMETER;
}
- if (spnego.negTokenInit.targetPrincipal) {
+ 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));
- gensec_set_target_principal(gensec_security, 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,
/* compose reply */
spnego_out.type = SPNEGO_NEG_TOKEN_INIT;
spnego_out.negTokenInit.mechTypes = my_mechs;
- spnego_out.negTokenInit.reqFlags = 0;
+ 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;
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;
}
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,
+ 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);
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,
+ 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,
.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,
+ .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 / nivanova / samba-autobuild / .git / blobdiff