handle NLTMSSP, server side
Copyright (C) Andrew Tridgell 2001
- Copyright (C) Andrew Bartlett 2001-2003
+ Copyright (C) Andrew Bartlett 2001-2003,2011
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.h"
+#include "../auth/ntlmssp/ntlmssp.h"
+#include "ntlmssp_wrap.h"
+#include "../librpc/gen_ndr/netlogon.h"
+#include "../librpc/gen_ndr/dcerpc.h"
+#include "../lib/tsocket/tsocket.h"
+#include "auth/gensec/gensec.h"
+#include "librpc/rpc/dcerpc.h"
+#include "lib/param/param.h"
+
+static NTSTATUS gensec_ntlmssp3_server_session_info(struct gensec_security *gensec_security,
+ TALLOC_CTX *mem_ctx,
+ struct auth_session_info **session_info)
+{
+ struct gensec_ntlmssp_context *gensec_ntlmssp =
+ talloc_get_type_abort(gensec_security->private_data,
+ struct gensec_ntlmssp_context);
+ NTSTATUS nt_status;
+
+ nt_status = create_local_token(mem_ctx,
+ gensec_ntlmssp->server_info,
+ &gensec_ntlmssp->ntlmssp_state->session_key,
+ gensec_ntlmssp->ntlmssp_state->user,
+ session_info);
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ DEBUG(10, ("create_local_token failed: %s\n",
+ nt_errstr(nt_status)));
+ return nt_status;
+ }
+
+ return NT_STATUS_OK;
+}
+
+static NTSTATUS gensec_ntlmssp3_server_update(struct gensec_security *gensec_security,
+ TALLOC_CTX *out_mem_ctx,
+ struct tevent_context *ev,
+ const DATA_BLOB request,
+ DATA_BLOB *reply)
+{
+ NTSTATUS status;
+ struct gensec_ntlmssp_context *gensec_ntlmssp =
+ talloc_get_type_abort(gensec_security->private_data,
+ struct gensec_ntlmssp_context);
+
+ status = ntlmssp_update(gensec_ntlmssp->ntlmssp_state, request, reply);
+ if (NT_STATUS_IS_OK(status) ||
+ NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
+ talloc_steal(out_mem_ctx, reply->data);
+ }
+
+ return status;
+}
/**
* Return the challenge as determined by the authentication subsystem
* @return an 8 byte random challenge
*/
-static const uint8 *auth_ntlmssp_get_challenge(const struct ntlmssp_state *ntlmssp_state)
+static NTSTATUS auth_ntlmssp_get_challenge(const struct ntlmssp_state *ntlmssp_state,
+ uint8_t chal[8])
{
- AUTH_NTLMSSP_STATE *auth_ntlmssp_state =
- (AUTH_NTLMSSP_STATE *)ntlmssp_state->auth_context;
- return auth_ntlmssp_state->auth_context->get_ntlm_challenge(auth_ntlmssp_state->auth_context);
+ struct gensec_ntlmssp_context *gensec_ntlmssp =
+ (struct gensec_ntlmssp_context *)ntlmssp_state->callback_private;
+ gensec_ntlmssp->auth_context->get_ntlm_challenge(
+ gensec_ntlmssp->auth_context, chal);
+ return NT_STATUS_OK;
}
/**
*/
static bool auth_ntlmssp_may_set_challenge(const struct ntlmssp_state *ntlmssp_state)
{
- AUTH_NTLMSSP_STATE *auth_ntlmssp_state =
- (AUTH_NTLMSSP_STATE *)ntlmssp_state->auth_context;
- struct auth_context *auth_context = auth_ntlmssp_state->auth_context;
+ struct gensec_ntlmssp_context *gensec_ntlmssp =
+ (struct gensec_ntlmssp_context *)ntlmssp_state->callback_private;
+ struct auth_context *auth_context = gensec_ntlmssp->auth_context;
return auth_context->challenge_may_be_modified;
}
*/
static NTSTATUS auth_ntlmssp_set_challenge(struct ntlmssp_state *ntlmssp_state, DATA_BLOB *challenge)
{
- AUTH_NTLMSSP_STATE *auth_ntlmssp_state =
- (AUTH_NTLMSSP_STATE *)ntlmssp_state->auth_context;
- struct auth_context *auth_context = auth_ntlmssp_state->auth_context;
+ struct gensec_ntlmssp_context *gensec_ntlmssp =
+ (struct gensec_ntlmssp_context *)ntlmssp_state->callback_private;
+ struct auth_context *auth_context = gensec_ntlmssp->auth_context;
SMB_ASSERT(challenge->length == 8);
- auth_context->challenge = data_blob_talloc(auth_context->mem_ctx,
+ auth_context->challenge = data_blob_talloc(auth_context,
challenge->data, challenge->length);
auth_context->challenge_set_by = "NTLMSSP callback (NTLM2)";
* Return the session keys used on the connection.
*/
-static NTSTATUS auth_ntlmssp_check_password(struct ntlmssp_state *ntlmssp_state, DATA_BLOB *user_session_key, DATA_BLOB *lm_session_key)
+static NTSTATUS auth_ntlmssp_check_password(struct ntlmssp_state *ntlmssp_state, TALLOC_CTX *mem_ctx,
+ DATA_BLOB *session_key, DATA_BLOB *lm_session_key)
{
- AUTH_NTLMSSP_STATE *auth_ntlmssp_state =
- (AUTH_NTLMSSP_STATE *)ntlmssp_state->auth_context;
- auth_usersupplied_info *user_info = NULL;
+ struct gensec_ntlmssp_context *gensec_ntlmssp =
+ (struct gensec_ntlmssp_context *)ntlmssp_state->callback_private;
+ struct auth_usersupplied_info *user_info = NULL;
NTSTATUS nt_status;
bool username_was_mapped;
/* the client has given us its machine name (which we otherwise would not get on port 445).
we need to possibly reload smb.conf if smb.conf includes depend on the machine name */
- set_remote_machine_name(auth_ntlmssp_state->ntlmssp_state->workstation, True);
+ set_remote_machine_name(gensec_ntlmssp->ntlmssp_state->client.netbios_name, True);
/* setup the string used by %U */
/* sub_set_smb_name checks for weird internally */
- sub_set_smb_name(auth_ntlmssp_state->ntlmssp_state->user);
+ sub_set_smb_name(gensec_ntlmssp->ntlmssp_state->user);
- reload_services(True);
+ lp_load(get_dyn_CONFIGFILE(), false, false, true, true);
- nt_status = make_user_info_map(&user_info,
- auth_ntlmssp_state->ntlmssp_state->user,
- auth_ntlmssp_state->ntlmssp_state->domain,
- auth_ntlmssp_state->ntlmssp_state->workstation,
- auth_ntlmssp_state->ntlmssp_state->lm_resp.data ? &auth_ntlmssp_state->ntlmssp_state->lm_resp : NULL,
- auth_ntlmssp_state->ntlmssp_state->nt_resp.data ? &auth_ntlmssp_state->ntlmssp_state->nt_resp : NULL,
+ nt_status = make_user_info_map(&user_info,
+ gensec_ntlmssp->ntlmssp_state->user,
+ gensec_ntlmssp->ntlmssp_state->domain,
+ gensec_ntlmssp->ntlmssp_state->client.netbios_name,
+ gensec_get_remote_address(gensec_ntlmssp->gensec_security),
+ gensec_ntlmssp->ntlmssp_state->lm_resp.data ? &gensec_ntlmssp->ntlmssp_state->lm_resp : NULL,
+ gensec_ntlmssp->ntlmssp_state->nt_resp.data ? &gensec_ntlmssp->ntlmssp_state->nt_resp : NULL,
NULL, NULL, NULL,
- True);
-
- user_info->logon_parameters = MSV1_0_ALLOW_SERVER_TRUST_ACCOUNT | MSV1_0_ALLOW_WORKSTATION_TRUST_ACCOUNT;
+ AUTH_PASSWORD_RESPONSE);
if (!NT_STATUS_IS_OK(nt_status)) {
return nt_status;
}
- nt_status = auth_ntlmssp_state->auth_context->check_ntlm_password(auth_ntlmssp_state->auth_context,
- user_info, &auth_ntlmssp_state->server_info);
+ user_info->logon_parameters = MSV1_0_ALLOW_SERVER_TRUST_ACCOUNT | MSV1_0_ALLOW_WORKSTATION_TRUST_ACCOUNT;
+
+ nt_status = gensec_ntlmssp->auth_context->check_ntlm_password(gensec_ntlmssp->auth_context,
+ user_info, &gensec_ntlmssp->server_info);
username_was_mapped = user_info->was_mapped;
free_user_info(&user_info);
if (!NT_STATUS_IS_OK(nt_status)) {
+ nt_status = do_map_to_guest_server_info(nt_status,
+ &gensec_ntlmssp->server_info,
+ gensec_ntlmssp->ntlmssp_state->user,
+ gensec_ntlmssp->ntlmssp_state->domain);
return nt_status;
}
- auth_ntlmssp_state->server_info->was_mapped |= username_was_mapped;
-
- nt_status = create_local_token(auth_ntlmssp_state->server_info);
-
if (!NT_STATUS_IS_OK(nt_status)) {
- DEBUG(10, ("create_local_token failed\n"));
return nt_status;
}
- if (auth_ntlmssp_state->server_info->user_session_key.length) {
+ gensec_ntlmssp->server_info->nss_token |= username_was_mapped;
+
+ /* Clear out the session keys, and pass them to the caller.
+ * They will not be used in this form again - instead the
+ * NTLMSSP code will decide on the final correct session key,
+ * and supply it to create_local_token() */
+ if (gensec_ntlmssp->server_info->session_key.length) {
DEBUG(10, ("Got NT session key of length %u\n",
- (unsigned int)auth_ntlmssp_state->server_info->user_session_key.length));
- *user_session_key = data_blob_talloc(auth_ntlmssp_state->mem_ctx,
- auth_ntlmssp_state->server_info->user_session_key.data,
- auth_ntlmssp_state->server_info->user_session_key.length);
+ (unsigned int)gensec_ntlmssp->server_info->session_key.length));
+ *session_key = gensec_ntlmssp->server_info->session_key;
+ talloc_steal(mem_ctx, gensec_ntlmssp->server_info->session_key.data);
+ gensec_ntlmssp->server_info->session_key = data_blob_null;
}
- if (auth_ntlmssp_state->server_info->lm_session_key.length) {
+ if (gensec_ntlmssp->server_info->lm_session_key.length) {
DEBUG(10, ("Got LM session key of length %u\n",
- (unsigned int)auth_ntlmssp_state->server_info->lm_session_key.length));
- *lm_session_key = data_blob_talloc(auth_ntlmssp_state->mem_ctx,
- auth_ntlmssp_state->server_info->lm_session_key.data,
- auth_ntlmssp_state->server_info->lm_session_key.length);
+ (unsigned int)gensec_ntlmssp->server_info->lm_session_key.length));
+ *lm_session_key = gensec_ntlmssp->server_info->lm_session_key;
+ talloc_steal(mem_ctx, gensec_ntlmssp->server_info->lm_session_key.data);
+ gensec_ntlmssp->server_info->lm_session_key = data_blob_null;
}
return nt_status;
}
-NTSTATUS auth_ntlmssp_start(AUTH_NTLMSSP_STATE **auth_ntlmssp_state)
+static NTSTATUS gensec_ntlmssp3_server_start(struct gensec_security *gensec_security)
{
NTSTATUS nt_status;
- TALLOC_CTX *mem_ctx;
-
- mem_ctx = talloc_init("AUTH NTLMSSP context");
-
- *auth_ntlmssp_state = TALLOC_ZERO_P(mem_ctx, AUTH_NTLMSSP_STATE);
- if (!*auth_ntlmssp_state) {
- DEBUG(0,("auth_ntlmssp_start: talloc failed!\n"));
- talloc_destroy(mem_ctx);
- return NT_STATUS_NO_MEMORY;
+ bool is_standalone;
+ const char *netbios_name;
+ const char *netbios_domain;
+ const char *dns_name;
+ char *dns_domain;
+ struct gensec_ntlmssp_context *gensec_ntlmssp;
+
+ if ((enum server_role)lp_server_role() == ROLE_STANDALONE) {
+ is_standalone = true;
+ } else {
+ is_standalone = false;
}
- ZERO_STRUCTP(*auth_ntlmssp_state);
-
- (*auth_ntlmssp_state)->mem_ctx = mem_ctx;
-
- if (!NT_STATUS_IS_OK(nt_status = ntlmssp_server_start(&(*auth_ntlmssp_state)->ntlmssp_state))) {
- return nt_status;
+ netbios_name = lp_netbios_name();
+ netbios_domain = lp_workgroup();
+ /* This should be a 'netbios domain -> DNS domain' mapping */
+ dns_domain = get_mydnsdomname(talloc_tos());
+ if (dns_domain) {
+ strlower_m(dns_domain);
}
-
- if (!NT_STATUS_IS_OK(nt_status = make_auth_context_subsystem(&(*auth_ntlmssp_state)->auth_context))) {
+ dns_name = get_mydnsfullname();
+
+ nt_status = gensec_ntlmssp_start(gensec_security);
+ NT_STATUS_NOT_OK_RETURN(nt_status);
+
+ gensec_ntlmssp =
+ talloc_get_type_abort(gensec_security->private_data,
+ struct gensec_ntlmssp_context);
+
+ nt_status = ntlmssp_server_start(gensec_ntlmssp,
+ is_standalone,
+ netbios_name,
+ netbios_domain,
+ dns_name,
+ dns_domain,
+ &gensec_ntlmssp->ntlmssp_state);
+ if (!NT_STATUS_IS_OK(nt_status)) {
return nt_status;
}
- (*auth_ntlmssp_state)->ntlmssp_state->auth_context = (*auth_ntlmssp_state);
- (*auth_ntlmssp_state)->ntlmssp_state->get_challenge = auth_ntlmssp_get_challenge;
- (*auth_ntlmssp_state)->ntlmssp_state->may_set_challenge = auth_ntlmssp_may_set_challenge;
- (*auth_ntlmssp_state)->ntlmssp_state->set_challenge = auth_ntlmssp_set_challenge;
- (*auth_ntlmssp_state)->ntlmssp_state->check_password = auth_ntlmssp_check_password;
- (*auth_ntlmssp_state)->ntlmssp_state->server_role = (enum server_types)lp_server_role();
+ gensec_ntlmssp->ntlmssp_state->callback_private = gensec_ntlmssp;
- return NT_STATUS_OK;
-}
+ gensec_ntlmssp->ntlmssp_state->get_challenge = auth_ntlmssp_get_challenge;
+ gensec_ntlmssp->ntlmssp_state->may_set_challenge = auth_ntlmssp_may_set_challenge;
+ gensec_ntlmssp->ntlmssp_state->set_challenge = auth_ntlmssp_set_challenge;
+ gensec_ntlmssp->ntlmssp_state->check_password = auth_ntlmssp_check_password;
-void auth_ntlmssp_end(AUTH_NTLMSSP_STATE **auth_ntlmssp_state)
-{
- TALLOC_CTX *mem_ctx = (*auth_ntlmssp_state)->mem_ctx;
-
- if ((*auth_ntlmssp_state)->ntlmssp_state) {
- ntlmssp_end(&(*auth_ntlmssp_state)->ntlmssp_state);
+ if (gensec_ntlmssp->gensec_security->want_features & GENSEC_FEATURE_SESSION_KEY) {
+ gensec_ntlmssp->ntlmssp_state->neg_flags |= NTLMSSP_NEGOTIATE_SIGN;
}
- if ((*auth_ntlmssp_state)->auth_context) {
- ((*auth_ntlmssp_state)->auth_context->free)(&(*auth_ntlmssp_state)->auth_context);
+ if (gensec_ntlmssp->gensec_security->want_features & GENSEC_FEATURE_SIGN) {
+ gensec_ntlmssp->ntlmssp_state->neg_flags |= NTLMSSP_NEGOTIATE_SIGN;
}
- if ((*auth_ntlmssp_state)->server_info) {
- TALLOC_FREE((*auth_ntlmssp_state)->server_info);
+ if (gensec_ntlmssp->gensec_security->want_features & GENSEC_FEATURE_SEAL) {
+ gensec_ntlmssp->ntlmssp_state->neg_flags |= NTLMSSP_NEGOTIATE_SIGN;
+ gensec_ntlmssp->ntlmssp_state->neg_flags |= NTLMSSP_NEGOTIATE_SEAL;
}
- talloc_destroy(mem_ctx);
- *auth_ntlmssp_state = NULL;
-}
-NTSTATUS auth_ntlmssp_update(AUTH_NTLMSSP_STATE *auth_ntlmssp_state,
- const DATA_BLOB request, DATA_BLOB *reply)
-{
- return ntlmssp_update(auth_ntlmssp_state->ntlmssp_state, request, reply);
+ return NT_STATUS_OK;
}
+
+static const char *gensec_ntlmssp3_server_oids[] = {
+ GENSEC_OID_NTLMSSP,
+ NULL
+};
+
+const struct gensec_security_ops gensec_ntlmssp3_server_ops = {
+ .name = "ntlmssp3_server",
+ .sasl_name = GENSEC_SASL_NAME_NTLMSSP, /* "NTLM" */
+ .auth_type = DCERPC_AUTH_TYPE_NTLMSSP,
+ .oid = gensec_ntlmssp3_server_oids,
+ .server_start = gensec_ntlmssp3_server_start,
+ .magic = gensec_ntlmssp_magic,
+ .update = gensec_ntlmssp3_server_update,
+ .sig_size = gensec_ntlmssp_sig_size,
+ .sign_packet = gensec_ntlmssp_sign_packet,
+ .check_packet = gensec_ntlmssp_check_packet,
+ .seal_packet = gensec_ntlmssp_seal_packet,
+ .unseal_packet = gensec_ntlmssp_unseal_packet,
+ .wrap = gensec_ntlmssp_wrap,
+ .unwrap = gensec_ntlmssp_unwrap,
+ .session_key = gensec_ntlmssp_session_key,
+ .session_info = gensec_ntlmssp3_server_session_info,
+ .have_feature = gensec_ntlmssp_have_feature,
+ .enabled = true,
+ .priority = GENSEC_NTLMSSP
+};
+
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