static bool try_failed_login(struct torture_context *tctx, struct smbcli_state *cli)
{
NTSTATUS status;
struct smb_composite_sesssetup setup;
struct smbcli_session *session;
struct smbcli_session_options options;
lpcfg_smbcli_session_options(tctx->lp_ctx, &options);
session = smbcli_session_init(cli->transport, cli, false, options);
setup.in.sesskey = cli->transport->negotiate.sesskey;
setup.in.capabilities = cli->transport->negotiate.capabilities;
setup.in.workgroup = lpcfg_workgroup(tctx->lp_ctx);
setup.in.credentials = cli_credentials_init(session);
setup.in.gensec_settings = lpcfg_gensec_settings(tctx, tctx->lp_ctx);
cli_credentials_set_conf(setup.in.credentials, tctx->lp_ctx);
cli_credentials_set_domain(setup.in.credentials, "INVALID-DOMAIN", CRED_SPECIFIED);
cli_credentials_set_username(setup.in.credentials, "INVALID-USERNAME", CRED_SPECIFIED);
cli_credentials_set_password(setup.in.credentials, "INVALID-PASSWORD", CRED_SPECIFIED);
status = smb_composite_sesssetup(session, &setup);
talloc_free(session);
if (NT_STATUS_IS_OK(status)) {
printf("Allowed session setup with invalid credentials?!\n");
return false;
}
return true;
}
static NTSTATUS smb2srv_negprot_secblob(struct smb2srv_request *req, DATA_BLOB *_blob)
{
struct gensec_security *gensec_security;
DATA_BLOB null_data_blob = data_blob(NULL, 0);
DATA_BLOB blob;
NTSTATUS nt_status;
struct cli_credentials *server_credentials;
server_credentials = cli_credentials_init(req);
if (!server_credentials) {
smbsrv_terminate_connection(req->smb_conn, "Failed to init server credentials\n");
return NT_STATUS_NO_MEMORY;
}
cli_credentials_set_conf(server_credentials, req->smb_conn->lp_ctx);
nt_status = cli_credentials_set_machine_account(server_credentials, req->smb_conn->lp_ctx);
if (!NT_STATUS_IS_OK(nt_status)) {
DEBUG(10, ("Failed to obtain server credentials, perhaps a standalone server?: %s\n", nt_errstr(nt_status)));
/*
* We keep the server_credentials as anonymous
* this is required for the spoolss.notify test
*/
}
req->smb_conn->negotiate.server_credentials = talloc_steal(req->smb_conn, server_credentials);
nt_status = samba_server_gensec_start(req,
req->smb_conn->connection->event.ctx,
req->smb_conn->connection->msg_ctx,
req->smb_conn->lp_ctx,
server_credentials,
"cifs",
&gensec_security);
if (!NT_STATUS_IS_OK(nt_status)) {
DEBUG(0, ("Failed to start GENSEC: %s\n", nt_errstr(nt_status)));
smbsrv_terminate_connection(req->smb_conn, "Failed to start GENSEC\n");
return nt_status;
}
gensec_set_target_service(gensec_security, "cifs");
gensec_set_credentials(gensec_security, server_credentials);
nt_status = gensec_start_mech_by_oid(gensec_security, GENSEC_OID_SPNEGO);
if (!NT_STATUS_IS_OK(nt_status)) {
DEBUG(0, ("Failed to start SPNEGO: %s\n", nt_errstr(nt_status)));
smbsrv_terminate_connection(req->smb_conn, "Failed to start SPNEGO\n");
return nt_status;
}
nt_status = gensec_update_ev(gensec_security, req, req->smb_conn->connection->event.ctx, null_data_blob, &blob);
if (!NT_STATUS_IS_OK(nt_status) && !NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
DEBUG(0, ("Failed to get SPNEGO to give us the first token: %s\n", nt_errstr(nt_status)));
smbsrv_terminate_connection(req->smb_conn, "Failed to start SPNEGO - no first token\n");
return nt_status;
}
*_blob = blob;
return NT_STATUS_OK;
}
NTSTATUS auth_system_session_info(TALLOC_CTX *parent_ctx,
struct loadparm_context *lp_ctx,
struct auth_session_info **_session_info)
{
NTSTATUS nt_status;
struct auth_user_info_dc *user_info_dc = NULL;
struct auth_session_info *session_info = NULL;
TALLOC_CTX *mem_ctx = talloc_new(parent_ctx);
nt_status = auth_system_user_info_dc(mem_ctx, lpcfg_netbios_name(lp_ctx),
&user_info_dc);
if (!NT_STATUS_IS_OK(nt_status)) {
talloc_free(mem_ctx);
return nt_status;
}
/* references the user_info_dc into the session_info */
nt_status = auth_generate_session_info(parent_ctx, NULL, NULL, user_info_dc, AUTH_SESSION_INFO_SIMPLE_PRIVILEGES, &session_info);
talloc_free(mem_ctx);
NT_STATUS_NOT_OK_RETURN(nt_status);
session_info->credentials = cli_credentials_init(session_info);
if (!session_info->credentials) {
return NT_STATUS_NO_MEMORY;
}
cli_credentials_set_conf(session_info->credentials, lp_ctx);
cli_credentials_set_machine_account_pending(session_info->credentials, lp_ctx);
*_session_info = session_info;
return NT_STATUS_OK;
}
NTSTATUS wbsrv_samba3_pam_auth(struct wbsrv_samba3_call *s3call)
{
struct composite_context *ctx;
struct wbsrv_service *service =
s3call->wbconn->listen_socket->service;
struct cli_credentials *credentials;
char *user, *domain;
if (!wb_samba3_split_username(s3call, s3call->wbconn->lp_ctx,
s3call->request.data.auth.user,
&domain, &user)) {
return NT_STATUS_NO_SUCH_USER;
}
credentials = cli_credentials_init(s3call);
if (!credentials) {
return NT_STATUS_NO_MEMORY;
}
cli_credentials_set_conf(credentials, service->task->lp_ctx);
cli_credentials_set_domain(credentials, domain, CRED_SPECIFIED);
cli_credentials_set_username(credentials, user, CRED_SPECIFIED);
cli_credentials_set_password(credentials, s3call->request.data.auth.pass, CRED_SPECIFIED);
ctx = wb_cmd_pam_auth_send(s3call, service, credentials);
NT_STATUS_HAVE_NO_MEMORY(ctx);
ctx->async.fn = pam_auth_recv;
ctx->async.private_data = s3call;
s3call->flags |= WBSRV_CALL_FLAGS_REPLY_ASYNC;
return NT_STATUS_OK;
}
NTSTATUS wbsrv_samba3_check_machacc(struct wbsrv_samba3_call *s3call)
{
NTSTATUS status;
struct cli_credentials *creds;
struct composite_context *ctx;
struct wbsrv_service *service =
s3call->wbconn->listen_socket->service;
/* Create a credentials structure */
creds = cli_credentials_init(s3call);
if (creds == NULL) {
return NT_STATUS_NO_MEMORY;
}
cli_credentials_set_conf(creds, service->task->lp_ctx);
/* Connect the machine account to the credentials */
status = cli_credentials_set_machine_account(creds, service->task->lp_ctx);
if (!NT_STATUS_IS_OK(status)) {
talloc_free(creds);
return status;
}
ctx = wb_cmd_pam_auth_send(s3call, service, creds);
if (!ctx) {
talloc_free(creds);
return NT_STATUS_NO_MEMORY;
}
ctx->async.fn = check_machacc_recv;
ctx->async.private_data = s3call;
s3call->flags |= WBSRV_CALL_FLAGS_REPLY_ASYNC;
return NT_STATUS_OK;
}
/*
parse any auth information from a dcerpc bind request
return false if we can't handle the auth request for some
reason (in which case we send a bind_nak)
*/
bool dcesrv_auth_bind(struct dcesrv_call_state *call)
{
struct cli_credentials *server_credentials;
struct ncacn_packet *pkt = &call->pkt;
struct dcesrv_connection *dce_conn = call->conn;
struct dcesrv_auth *auth = &dce_conn->auth_state;
NTSTATUS status;
uint32_t auth_length;
if (pkt->u.bind.auth_info.length == 0) {
dce_conn->auth_state.auth_info = NULL;
return true;
}
dce_conn->auth_state.auth_info = talloc(dce_conn, struct dcerpc_auth);
if (!dce_conn->auth_state.auth_info) {
return false;
}
status = dcerpc_pull_auth_trailer(pkt, call, &pkt->u.bind.auth_info,
dce_conn->auth_state.auth_info,
&auth_length, false);
server_credentials
= cli_credentials_init(call);
if (!server_credentials) {
DEBUG(1, ("Failed to init server credentials\n"));
return false;
}
cli_credentials_set_conf(server_credentials, call->conn->dce_ctx->lp_ctx);
status = cli_credentials_set_machine_account(server_credentials, call->conn->dce_ctx->lp_ctx);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(10, ("Failed to obtain server credentials, perhaps a standalone server?: %s\n", nt_errstr(status)));
talloc_free(server_credentials);
server_credentials = NULL;
}
status = samba_server_gensec_start(dce_conn, call->event_ctx,
call->msg_ctx,
call->conn->dce_ctx->lp_ctx,
server_credentials,
NULL,
&auth->gensec_security);
status = gensec_start_mech_by_authtype(auth->gensec_security, auth->auth_info->auth_type,
auth->auth_info->auth_level);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(3, ("Failed to start GENSEC mechanism for DCERPC server: auth_type=%d, auth_level=%d: %s\n",
(int)auth->auth_info->auth_type,
(int)auth->auth_info->auth_level,
nt_errstr(status)));
return false;
}
return true;
}
static int ejs_net_context(MprVarHandle eid, int argc, struct MprVar **argv)
{
TALLOC_CTX *event_mem_ctx = talloc_new(mprMemCtx());
struct cli_credentials *creds;
struct libnet_context *ctx;
struct MprVar obj;
struct event_context *ev;
if (!event_mem_ctx) {
ejsSetErrorMsg(eid, "talloc_new() failed");
return -1;
}
ev = event_context_find(event_mem_ctx);
ctx = libnet_context_init(ev);
/* IF we generated a new event context, it will be under here,
* and we need it to last as long as the libnet context, so
* make it a child */
talloc_steal(ctx, event_mem_ctx);
if (argc == 0 || (argc == 1 && argv[0]->type == MPR_TYPE_NULL)) {
creds = cli_credentials_init(ctx);
if (creds == NULL) {
ejsSetErrorMsg(eid, "cli_credential_init() failed");
talloc_free(ctx);
return -1;
}
cli_credentials_set_conf(creds);
cli_credentials_set_anonymous(creds);
} else if (argc == 1 && argv[0]->type == MPR_TYPE_OBJECT) {
/* get credential values from credentials object */
creds = mprGetPtr(argv[0], "creds");
if (creds == NULL) {
ejsSetErrorMsg(eid, "userAuth requires a 'creds' first parameter");
talloc_free(ctx);
return -1;
}
} else {
ejsSetErrorMsg(eid, "NetContext invalid arguments, this function requires an object.");
talloc_free(ctx);
return -1;
}
ctx->cred = creds;
obj = mprObject("NetCtx");
mprSetPtrChild(&obj, "ctx", ctx);
mprSetCFunction(&obj, "UserMgr", ejs_net_userman);
mprSetCFunction(&obj, "JoinDomain", ejs_net_join_domain);
mprSetCFunction(&obj, "SamSyncLdb", ejs_net_samsync_ldb);
mpr_Return(eid, obj);
return 0;
}
static int ejs_tree_connect(MprVarHandle eid, int argc, char **argv)
{
struct cli_credentials *creds;
struct smb_composite_connect io;
struct smbcli_tree *tree;
char *hostname, *sharename;
NTSTATUS result;
TALLOC_CTX *mem_ctx;
if (argc != 2) {
ejsSetErrorMsg(eid, "tree_connect(): invalid number of args");
return -1;
}
/* Set up host, share destination */
mem_ctx = talloc_new(mprMemCtx());
smbcli_parse_unc(argv[0], mem_ctx, &hostname, &sharename);
/* Set up credentials */
creds = cli_credentials_init(NULL);
cli_credentials_set_conf(creds);
cli_credentials_parse_string(creds, argv[1], CRED_SPECIFIED);
/* Do connect */
io.in.dest_host = hostname;
io.in.port = 0;
io.in.called_name = strupper_talloc(mem_ctx, hostname);
io.in.service = sharename;
io.in.service_type = "?????";
io.in.credentials = creds;
io.in.fallback_to_anonymous = False;
io.in.workgroup = lp_workgroup();
result = smb_composite_connect(&io, mem_ctx, NULL);
tree = io.out.tree;
talloc_free(mem_ctx);
if (!NT_STATUS_IS_OK(result)) {
mpr_Return(eid, mprNTSTATUS(result));
return 0;
}
mpr_Return(eid, mprCreatePtrVar(tree));
return 0;
}
/**
* Guess defaults for credentials from environment variables,
* and from the configuration file
*
* @param cred Credentials structure to fill in
*/
_PUBLIC_ void cli_credentials_guess(struct cli_credentials *cred,
struct loadparm_context *lp_ctx)
{
char *p;
const char *error_string;
if (lp_ctx != NULL) {
cli_credentials_set_conf(cred, lp_ctx);
}
if (getenv("LOGNAME")) {
cli_credentials_set_username(cred, getenv("LOGNAME"), CRED_GUESS_ENV);
}
if (getenv("USER")) {
cli_credentials_parse_string(cred, getenv("USER"), CRED_GUESS_ENV);
if ((p = strchr_m(getenv("USER"),'%'))) {
memset(p,0,strlen(cred->password));
}
}
if (getenv("PASSWD")) {
cli_credentials_set_password(cred, getenv("PASSWD"), CRED_GUESS_ENV);
}
if (getenv("PASSWD_FD")) {
cli_credentials_parse_password_fd(cred, atoi(getenv("PASSWD_FD")),
CRED_GUESS_FILE);
}
p = getenv("PASSWD_FILE");
if (p && p[0]) {
cli_credentials_parse_password_file(cred, p, CRED_GUESS_FILE);
}
if (cli_credentials_get_kerberos_state(cred) != CRED_DONT_USE_KERBEROS) {
cli_credentials_set_ccache(cred, lp_ctx, NULL, CRED_GUESS_FILE,
&error_string);
}
}
_PUBLIC_ NTSTATUS auth_anonymous_session_info(TALLOC_CTX *parent_ctx,
struct tevent_context *event_ctx,
struct loadparm_context *lp_ctx,
struct auth_session_info **_session_info)
{
NTSTATUS nt_status;
struct auth_serversupplied_info *server_info = NULL;
struct auth_session_info *session_info = NULL;
TALLOC_CTX *mem_ctx = talloc_new(parent_ctx);
nt_status = auth_anonymous_server_info(mem_ctx,
lp_netbios_name(lp_ctx),
&server_info);
if (!NT_STATUS_IS_OK(nt_status)) {
talloc_free(mem_ctx);
return nt_status;
}
/* references the server_info into the session_info */
nt_status = auth_generate_session_info(parent_ctx, event_ctx, lp_ctx, server_info, &session_info);
talloc_free(mem_ctx);
NT_STATUS_NOT_OK_RETURN(nt_status);
session_info->credentials = cli_credentials_init(session_info);
if (!session_info->credentials) {
return NT_STATUS_NO_MEMORY;
}
cli_credentials_set_conf(session_info->credentials, lp_ctx);
cli_credentials_set_anonymous(session_info->credentials);
*_session_info = session_info;
return NT_STATUS_OK;
}
struct composite_context *wb_init_domain_send(TALLOC_CTX *mem_ctx,
struct wbsrv_service *service,
struct wb_dom_info *dom_info)
{
struct composite_context *result, *ctx;
struct init_domain_state *state;
result = composite_create(mem_ctx, service->task->event_ctx);
if (result == NULL) goto failed;
state = talloc_zero(result, struct init_domain_state);
if (state == NULL) goto failed;
state->ctx = result;
result->private_data = state;
state->service = service;
state->domain = talloc(state, struct wbsrv_domain);
if (state->domain == NULL) goto failed;
state->domain->service = service;
state->domain->info = talloc_reference(state->domain, dom_info);
if (state->domain->info == NULL) goto failed;
state->domain->dc_name = dom_info->dc->name;
state->domain->dc_address = dom_info->dc->address;
state->domain->libnet_ctx = libnet_context_init(service->task->event_ctx,
service->task->lp_ctx);
if (state->domain->libnet_ctx == NULL) goto failed;
talloc_steal(state->domain, state->domain->libnet_ctx);
/* Create a credentials structure */
state->domain->libnet_ctx->cred = cli_credentials_init(state->domain);
if (state->domain->libnet_ctx->cred == NULL) goto failed;
cli_credentials_set_conf(state->domain->libnet_ctx->cred, service->task->lp_ctx);
/* Connect the machine account to the credentials */
state->ctx->status =
cli_credentials_set_machine_account(state->domain->libnet_ctx->cred, state->domain->libnet_ctx->lp_ctx);
if (!NT_STATUS_IS_OK(state->ctx->status)) goto failed;
state->domain->netlogon_binding = init_domain_binding(state, &ndr_table_netlogon);
state->domain->netlogon_pipe = NULL;
state->domain->netlogon_queue = tevent_queue_create(state->domain,
"netlogon_queue");
if (state->domain->netlogon_queue == NULL) goto failed;
/* We start the queue when the connection is usable */
tevent_queue_stop(state->domain->netlogon_queue);
if ((!cli_credentials_is_anonymous(state->domain->libnet_ctx->cred)) &&
((lpcfg_server_role(service->task->lp_ctx) == ROLE_DOMAIN_MEMBER) ||
(lpcfg_server_role(service->task->lp_ctx) == ROLE_ACTIVE_DIRECTORY_DC)) &&
(dom_sid_equal(state->domain->info->sid,
state->service->primary_sid))) {
uint32_t flags = DCERPC_SCHANNEL | DCERPC_SCHANNEL_AUTO;
/* For debugging, it can be a real pain if all the traffic is encrypted */
if (lpcfg_winbind_sealed_pipes(service->task->lp_ctx)) {
flags |= DCERPC_SIGN | DCERPC_SEAL;
} else {
flags |= DCERPC_SIGN;
}
state->ctx->status = dcerpc_binding_set_flags(state->domain->netlogon_binding,
flags, 0);
if (!NT_STATUS_IS_OK(state->ctx->status)) goto failed;
}
/* No encryption on anonymous pipes */
ctx = dcerpc_pipe_connect_b_send(state, state->domain->netlogon_binding,
&ndr_table_netlogon,
state->domain->libnet_ctx->cred,
service->task->event_ctx,
service->task->lp_ctx);
if (composite_nomem(ctx, state->ctx)) {
goto failed;
}
composite_continue(state->ctx, ctx, init_domain_recv_netlogonpipe,
state);
return result;
failed:
talloc_free(result);
return NULL;
}
NTSTATUS auth_generic_prepare(TALLOC_CTX *mem_ctx,
const struct tsocket_address *remote_address,
struct gensec_security **gensec_security_out)
{
struct gensec_security *gensec_security;
struct auth_context *auth_context;
NTSTATUS nt_status;
TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
NT_STATUS_HAVE_NO_MEMORY(tmp_ctx);
nt_status = make_auth_context_subsystem(tmp_ctx, &auth_context);
if (!NT_STATUS_IS_OK(nt_status)) {
TALLOC_FREE(tmp_ctx);
return nt_status;
}
if (auth_context->prepare_gensec) {
nt_status = auth_context->prepare_gensec(auth_context, tmp_ctx,
&gensec_security);
if (!NT_STATUS_IS_OK(nt_status)) {
TALLOC_FREE(tmp_ctx);
return nt_status;
}
} else {
const struct gensec_security_ops **backends = NULL;
struct gensec_settings *gensec_settings;
struct loadparm_context *lp_ctx;
size_t idx = 0;
struct cli_credentials *server_credentials;
const char *dns_name;
const char *dns_domain;
struct auth4_context *auth4_context = make_auth4_context_s3(tmp_ctx, auth_context);
if (auth4_context == NULL) {
TALLOC_FREE(tmp_ctx);
return NT_STATUS_NO_MEMORY;
}
lp_ctx = loadparm_init_s3(tmp_ctx, loadparm_s3_helpers());
if (lp_ctx == NULL) {
DEBUG(10, ("loadparm_init_s3 failed\n"));
TALLOC_FREE(tmp_ctx);
return NT_STATUS_INVALID_SERVER_STATE;
}
gensec_settings = lpcfg_gensec_settings(tmp_ctx, lp_ctx);
if (lp_ctx == NULL) {
DEBUG(10, ("lpcfg_gensec_settings failed\n"));
TALLOC_FREE(tmp_ctx);
return NT_STATUS_NO_MEMORY;
}
/*
* This should be a 'netbios domain -> DNS domain'
* mapping, and can currently validly return NULL on
* poorly configured systems.
*
* This is used for the NTLMSSP server
*
*/
dns_name = get_mydnsfullname();
if (dns_name == NULL) {
dns_name = "";
}
dns_domain = get_mydnsdomname(tmp_ctx);
if (dns_domain == NULL) {
dns_domain = "";
}
gensec_settings->server_dns_name = strlower_talloc(gensec_settings, dns_name);
if (gensec_settings->server_dns_name == NULL) {
TALLOC_FREE(tmp_ctx);
return NT_STATUS_NO_MEMORY;
}
gensec_settings->server_dns_domain = strlower_talloc(gensec_settings, dns_domain);
if (gensec_settings->server_dns_domain == NULL) {
TALLOC_FREE(tmp_ctx);
return NT_STATUS_NO_MEMORY;
}
backends = talloc_zero_array(gensec_settings,
const struct gensec_security_ops *, 6);
if (backends == NULL) {
TALLOC_FREE(tmp_ctx);
return NT_STATUS_NO_MEMORY;
}
gensec_settings->backends = backends;
gensec_init();
/* These need to be in priority order, krb5 before NTLMSSP */
#if defined(HAVE_KRB5)
backends[idx++] = &gensec_gse_krb5_security_ops;
#endif
backends[idx++] = gensec_security_by_oid(NULL, GENSEC_OID_NTLMSSP);
backends[idx++] = gensec_security_by_oid(NULL, GENSEC_OID_SPNEGO);
backends[idx++] = gensec_security_by_auth_type(NULL, DCERPC_AUTH_TYPE_SCHANNEL);
backends[idx++] = gensec_security_by_auth_type(NULL, DCERPC_AUTH_TYPE_NCALRPC_AS_SYSTEM);
/*
* This is anonymous for now, because we just use it
* to set the kerberos state at the moment
*/
server_credentials = cli_credentials_init_anon(tmp_ctx);
if (!server_credentials) {
DEBUG(0, ("auth_generic_prepare: Failed to init server credentials\n"));
return NT_STATUS_NO_MEMORY;
}
cli_credentials_set_conf(server_credentials, lp_ctx);
if (lp_security() == SEC_ADS || USE_KERBEROS_KEYTAB) {
cli_credentials_set_kerberos_state(server_credentials, CRED_AUTO_USE_KERBEROS);
} else {
cli_credentials_set_kerberos_state(server_credentials, CRED_DONT_USE_KERBEROS);
}
nt_status = gensec_server_start(tmp_ctx, gensec_settings,
auth4_context, &gensec_security);
if (!NT_STATUS_IS_OK(nt_status)) {
TALLOC_FREE(tmp_ctx);
return nt_status;
}
gensec_set_credentials(gensec_security, server_credentials);
talloc_unlink(tmp_ctx, lp_ctx);
talloc_unlink(tmp_ctx, server_credentials);
talloc_unlink(tmp_ctx, gensec_settings);
talloc_unlink(tmp_ctx, auth4_context);
}
nt_status = gensec_set_remote_address(gensec_security,
remote_address);
if (!NT_STATUS_IS_OK(nt_status)) {
TALLOC_FREE(tmp_ctx);
return nt_status;
}
*gensec_security_out = talloc_steal(mem_ctx, gensec_security);
TALLOC_FREE(tmp_ctx);
return NT_STATUS_OK;
}
/* Fill out the auth_session_info with a cli_credentials based on the
* auth_session_info we were forwarded over named pipe forwarding.
*
* NOTE: The stucture members of session_info_transport are stolen
* with talloc_move() into auth_session_info for long term use
*/
struct auth_session_info *auth_session_info_from_transport(TALLOC_CTX *mem_ctx,
struct auth_session_info_transport *session_info_transport,
struct loadparm_context *lp_ctx,
const char **reason)
{
struct auth_session_info *session_info;
session_info = talloc_steal(mem_ctx, session_info_transport->session_info);
if (session_info_transport->exported_gssapi_credentials.length) {
struct cli_credentials *creds;
OM_uint32 minor_status;
gss_buffer_desc cred_token;
gss_cred_id_t cred_handle;
const char *error_string;
int ret;
DEBUG(10, ("Delegated credentials supplied by client\n"));
cred_token.value = session_info_transport->exported_gssapi_credentials.data;
cred_token.length = session_info_transport->exported_gssapi_credentials.length;
ret = gss_import_cred(&minor_status,
&cred_token,
&cred_handle);
if (ret != GSS_S_COMPLETE) {
*reason = "Internal error in gss_import_cred()";
return NULL;
}
creds = cli_credentials_init(session_info);
if (!creds) {
*reason = "Out of memory in cli_credentials_init()";
return NULL;
}
session_info->credentials = creds;
cli_credentials_set_conf(creds, lp_ctx);
/* Just so we don't segfault trying to get at a username */
cli_credentials_set_anonymous(creds);
ret = cli_credentials_set_client_gss_creds(creds,
lp_ctx,
cred_handle,
CRED_SPECIFIED,
&error_string);
if (ret) {
*reason = talloc_asprintf(mem_ctx,
"Failed to set pipe forwarded"
"creds: %s\n", error_string);
return NULL;
}
/* This credential handle isn't useful for password
* authentication, so ensure nobody tries to do that */
cli_credentials_set_kerberos_state(creds,
CRED_MUST_USE_KERBEROS);
}
return session_info;
}
/*
test session ops
*/
static BOOL test_session(struct smbcli_state *cli, TALLOC_CTX *mem_ctx)
{
NTSTATUS status;
BOOL ret = True;
struct smbcli_session *session;
struct smbcli_session *session2;
struct smbcli_session *session3;
struct smbcli_session *session4;
struct cli_credentials *anon_creds;
struct smbcli_session *sessions[15];
struct composite_context *composite_contexts[15];
struct smbcli_tree *tree;
struct smb_composite_sesssetup setup;
struct smb_composite_sesssetup setups[15];
union smb_open io;
union smb_write wr;
union smb_close cl;
int fnum;
const char *fname = BASEDIR "\\test.txt";
uint8_t c = 1;
int i;
printf("TESTING SESSION HANDLING\n");
if (!torture_setup_dir(cli, BASEDIR)) {
return False;
}
printf("create a second security context on the same transport\n");
session = smbcli_session_init(cli->transport, mem_ctx, False);
setup.in.sesskey = cli->transport->negotiate.sesskey;
setup.in.capabilities = cli->transport->negotiate.capabilities; /* ignored in secondary session setup, except by our libs, which care about the extended security bit */
setup.in.workgroup = lp_workgroup();
setup.in.credentials = cmdline_credentials;
status = smb_composite_sesssetup(session, &setup);
CHECK_STATUS(status, NT_STATUS_OK);
session->vuid = setup.out.vuid;
printf("create a third security context on the same transport, with vuid set\n");
session2 = smbcli_session_init(cli->transport, mem_ctx, False);
session2->vuid = session->vuid;
setup.in.sesskey = cli->transport->negotiate.sesskey;
setup.in.capabilities = cli->transport->negotiate.capabilities; /* ignored in secondary session setup, except by our libs, which care about the extended security bit */
setup.in.workgroup = lp_workgroup();
setup.in.credentials = cmdline_credentials;
status = smb_composite_sesssetup(session2, &setup);
CHECK_STATUS(status, NT_STATUS_OK);
session2->vuid = setup.out.vuid;
printf("vuid1=%d vuid2=%d vuid3=%d\n", cli->session->vuid, session->vuid, session2->vuid);
if (cli->transport->negotiate.capabilities & CAP_EXTENDED_SECURITY) {
/* Samba4 currently fails this - we need to determine if this insane behaviour is important */
if (session2->vuid == session->vuid) {
printf("server allows the user to re-use an existing vuid in session setup \n");
}
} else {
CHECK_NOT_VALUE(session2->vuid, session->vuid);
}
talloc_free(session2);
if (cli->transport->negotiate.capabilities & CAP_EXTENDED_SECURITY) {
printf("create a fourth security context on the same transport, without extended security\n");
session3 = smbcli_session_init(cli->transport, mem_ctx, False);
session3->vuid = session->vuid;
setup.in.sesskey = cli->transport->negotiate.sesskey;
setup.in.capabilities &= ~CAP_EXTENDED_SECURITY; /* force a non extended security login (should fail) */
setup.in.workgroup = lp_workgroup();
setup.in.credentials = cmdline_credentials;
status = smb_composite_sesssetup(session3, &setup);
CHECK_STATUS(status, NT_STATUS_LOGON_FAILURE);
printf("create a fouth anonymous security context on the same transport, without extended security\n");
session4 = smbcli_session_init(cli->transport, mem_ctx, False);
session4->vuid = session->vuid;
setup.in.sesskey = cli->transport->negotiate.sesskey;
setup.in.capabilities &= ~CAP_EXTENDED_SECURITY; /* force a non extended security login (should fail) */
setup.in.workgroup = lp_workgroup();
anon_creds = cli_credentials_init(mem_ctx);
cli_credentials_set_conf(anon_creds);
cli_credentials_set_anonymous(anon_creds);
setup.in.credentials = anon_creds;
status = smb_composite_sesssetup(session3, &setup);
CHECK_STATUS(status, NT_STATUS_OK);
talloc_free(session4);
}
printf("use the same tree as the existing connection\n");
tree = smbcli_tree_init(session, mem_ctx, False);
tree->tid = cli->tree->tid;
printf("create a file using the new vuid\n");
io.generic.level = RAW_OPEN_NTCREATEX;
io.ntcreatex.in.root_fid = 0;
io.ntcreatex.in.flags = 0;
io.ntcreatex.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
io.ntcreatex.in.create_options = 0;
io.ntcreatex.in.file_attr = FILE_ATTRIBUTE_NORMAL;
io.ntcreatex.in.share_access = NTCREATEX_SHARE_ACCESS_READ | NTCREATEX_SHARE_ACCESS_WRITE;
io.ntcreatex.in.alloc_size = 0;
io.ntcreatex.in.open_disposition = NTCREATEX_DISP_CREATE;
io.ntcreatex.in.impersonation = NTCREATEX_IMPERSONATION_ANONYMOUS;
io.ntcreatex.in.security_flags = 0;
io.ntcreatex.in.fname = fname;
status = smb_raw_open(tree, mem_ctx, &io);
CHECK_STATUS(status, NT_STATUS_OK);
fnum = io.ntcreatex.out.file.fnum;
printf("write using the old vuid\n");
wr.generic.level = RAW_WRITE_WRITEX;
wr.writex.in.file.fnum = fnum;
wr.writex.in.offset = 0;
wr.writex.in.wmode = 0;
wr.writex.in.remaining = 0;
wr.writex.in.count = 1;
wr.writex.in.data = &c;
status = smb_raw_write(cli->tree, &wr);
CHECK_STATUS(status, NT_STATUS_INVALID_HANDLE);
printf("write with the new vuid\n");
status = smb_raw_write(tree, &wr);
CHECK_STATUS(status, NT_STATUS_OK);
CHECK_VALUE(wr.writex.out.nwritten, 1);
printf("logoff the new vuid\n");
status = smb_raw_ulogoff(session);
CHECK_STATUS(status, NT_STATUS_OK);
printf("the new vuid should not now be accessible\n");
status = smb_raw_write(tree, &wr);
CHECK_STATUS(status, NT_STATUS_INVALID_HANDLE);
printf("second logoff for the new vuid should fail\n");
status = smb_raw_ulogoff(session);
CHECK_STATUS(status, NT_STATUS_DOS(ERRSRV, ERRbaduid));
talloc_free(session);
printf("the fnum should have been auto-closed\n");
cl.close.level = RAW_CLOSE_CLOSE;
cl.close.in.file.fnum = fnum;
cl.close.in.write_time = 0;
status = smb_raw_close(cli->tree, &cl);
CHECK_STATUS(status, NT_STATUS_INVALID_HANDLE);
printf("create %d secondary security contexts on the same transport\n",
(int)ARRAY_SIZE(sessions));
for (i=0; i <ARRAY_SIZE(sessions); i++) {
setups[i].in.sesskey = cli->transport->negotiate.sesskey;
setups[i].in.capabilities = cli->transport->negotiate.capabilities; /* ignored in secondary session setup, except by our libs, which care about the extended security bit */
setups[i].in.workgroup = lp_workgroup();
setups[i].in.credentials = cmdline_credentials;
sessions[i] = smbcli_session_init(cli->transport, mem_ctx, False);
composite_contexts[i] = smb_composite_sesssetup_send(sessions[i], &setups[i]);
}
/* flush the queue */
for (i=0; i < ARRAY_SIZE(sessions); i++) {
event_loop_once(composite_contexts[0]->event_ctx);
}
printf("finishing %d secondary security contexts on the same transport\n",
(int)ARRAY_SIZE(sessions));
for (i=0; i< ARRAY_SIZE(sessions); i++) {
status = smb_composite_sesssetup_recv(composite_contexts[i]);
CHECK_STATUS(status, NT_STATUS_OK);
sessions[i]->vuid = setups[i].out.vuid;
printf("VUID: %d\n", sessions[i]->vuid);
status = smb_raw_ulogoff(sessions[i]);
CHECK_STATUS(status, NT_STATUS_OK);
}
talloc_free(tree);
done:
return ret;
}
bool kpasswdd_process(struct kdc_server *kdc,
TALLOC_CTX *mem_ctx,
DATA_BLOB *input,
DATA_BLOB *reply,
struct tsocket_address *peer_addr,
struct tsocket_address *my_addr,
int datagram_reply)
{
bool ret;
const uint16_t header_len = 6;
uint16_t len;
uint16_t ap_req_len;
uint16_t krb_priv_len;
uint16_t version;
NTSTATUS nt_status;
DATA_BLOB ap_req, krb_priv_req;
DATA_BLOB krb_priv_rep = data_blob(NULL, 0);
DATA_BLOB ap_rep = data_blob(NULL, 0);
DATA_BLOB kpasswd_req, kpasswd_rep;
struct cli_credentials *server_credentials;
struct gensec_security *gensec_security;
TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
char *keytab_name;
if (!tmp_ctx) {
return false;
}
/* Be parinoid. We need to ensure we don't just let the
* caller lead us into a buffer overflow */
if (input->length <= header_len) {
talloc_free(tmp_ctx);
return false;
}
len = RSVAL(input->data, 0);
if (input->length != len) {
talloc_free(tmp_ctx);
return false;
}
/* There are two different versions of this protocol so far,
* plus others in the standards pipe. Fortunetly they all
* take a very similar framing */
version = RSVAL(input->data, 2);
ap_req_len = RSVAL(input->data, 4);
if ((ap_req_len >= len) || (ap_req_len + header_len) >= len) {
talloc_free(tmp_ctx);
return false;
}
krb_priv_len = len - ap_req_len;
ap_req = data_blob_const(&input->data[header_len], ap_req_len);
krb_priv_req = data_blob_const(&input->data[header_len + ap_req_len], krb_priv_len);
server_credentials = cli_credentials_init(tmp_ctx);
if (!server_credentials) {
DEBUG(1, ("Failed to init server credentials\n"));
return false;
}
/* We want the credentials subsystem to use the krb5 context
* we already have, rather than a new context */
cli_credentials_set_krb5_context(server_credentials, kdc->smb_krb5_context);
cli_credentials_set_conf(server_credentials, kdc->task->lp_ctx);
keytab_name = talloc_asprintf(server_credentials, "HDB:samba4&%p", kdc->base_ctx);
cli_credentials_set_username(server_credentials, "kadmin/changepw", CRED_SPECIFIED);
ret = cli_credentials_set_keytab_name(server_credentials, kdc->task->event_ctx, kdc->task->lp_ctx, keytab_name, CRED_SPECIFIED);
if (ret != 0) {
ret = kpasswdd_make_unauth_error_reply(kdc, mem_ctx,
KRB5_KPASSWD_HARDERROR,
talloc_asprintf(mem_ctx,
"Failed to obtain server credentials for kadmin/changepw: %s\n",
nt_errstr(nt_status)),
&krb_priv_rep);
ap_rep.length = 0;
if (ret) {
goto reply;
}
talloc_free(tmp_ctx);
return ret;
}
/* We don't strictly need to call this wrapper, and could call
* gensec_server_start directly, as we have no need for NTLM
* and we have a PAC, but this ensures that the wrapper can be
* safely extended for other helpful things in future */
nt_status = samba_server_gensec_start(tmp_ctx, kdc->task->event_ctx,
kdc->task->msg_ctx,
kdc->task->lp_ctx,
server_credentials,
"kpasswd",
&gensec_security);
if (!NT_STATUS_IS_OK(nt_status)) {
talloc_free(tmp_ctx);
return false;
}
/* The kerberos PRIV packets include these addresses. MIT
* clients check that they are present */
#if 0
/* Skip this part for now, it breaks with a NetAPP filer and
* in any case where the client address is behind NAT. If
* older MIT clients need this, we might have to insert more
* complex code */
nt_status = gensec_set_local_address(gensec_security, peer_addr);
if (!NT_STATUS_IS_OK(nt_status)) {
talloc_free(tmp_ctx);
return false;
}
#endif
nt_status = gensec_set_local_address(gensec_security, my_addr);
if (!NT_STATUS_IS_OK(nt_status)) {
talloc_free(tmp_ctx);
return false;
}
/* We want the GENSEC wrap calls to generate PRIV tokens */
gensec_want_feature(gensec_security, GENSEC_FEATURE_SEAL);
nt_status = gensec_start_mech_by_name(gensec_security, "krb5");
if (!NT_STATUS_IS_OK(nt_status)) {
talloc_free(tmp_ctx);
return false;
}
/* Accept the AP-REQ and generate teh AP-REP we need for the reply */
nt_status = gensec_update(gensec_security, tmp_ctx, ap_req, &ap_rep);
if (!NT_STATUS_IS_OK(nt_status) && !NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
ret = kpasswdd_make_unauth_error_reply(kdc, mem_ctx,
KRB5_KPASSWD_HARDERROR,
talloc_asprintf(mem_ctx,
"gensec_update failed: %s",
nt_errstr(nt_status)),
&krb_priv_rep);
ap_rep.length = 0;
if (ret) {
goto reply;
}
talloc_free(tmp_ctx);
return ret;
}
/* Extract the data from the KRB-PRIV half of the message */
nt_status = gensec_unwrap(gensec_security, tmp_ctx, &krb_priv_req, &kpasswd_req);
if (!NT_STATUS_IS_OK(nt_status)) {
ret = kpasswdd_make_unauth_error_reply(kdc, mem_ctx,
KRB5_KPASSWD_HARDERROR,
talloc_asprintf(mem_ctx,
"gensec_unwrap failed: %s",
nt_errstr(nt_status)),
&krb_priv_rep);
ap_rep.length = 0;
if (ret) {
goto reply;
}
talloc_free(tmp_ctx);
return ret;
}
/* Figure out something to do with it (probably changing a password...) */
ret = kpasswd_process_request(kdc, tmp_ctx,
gensec_security,
version,
&kpasswd_req, &kpasswd_rep);
if (!ret) {
/* Argh! */
return false;
}
/* And wrap up the reply: This ensures that the error message
* or success can be verified by the client */
nt_status = gensec_wrap(gensec_security, tmp_ctx,
&kpasswd_rep, &krb_priv_rep);
if (!NT_STATUS_IS_OK(nt_status)) {
ret = kpasswdd_make_unauth_error_reply(kdc, mem_ctx,
KRB5_KPASSWD_HARDERROR,
talloc_asprintf(mem_ctx,
"gensec_wrap failed: %s",
nt_errstr(nt_status)),
&krb_priv_rep);
ap_rep.length = 0;
if (ret) {
goto reply;
}
talloc_free(tmp_ctx);
return ret;
}
reply:
*reply = data_blob_talloc(mem_ctx, NULL, krb_priv_rep.length + ap_rep.length + header_len);
if (!reply->data) {
return false;
}
RSSVAL(reply->data, 0, reply->length);
RSSVAL(reply->data, 2, 1); /* This is a version 1 reply, MS change/set or otherwise */
RSSVAL(reply->data, 4, ap_rep.length);
memcpy(reply->data + header_len,
ap_rep.data,
ap_rep.length);
memcpy(reply->data + header_len + ap_rep.length,
krb_priv_rep.data,
krb_priv_rep.length);
talloc_free(tmp_ctx);
return ret;
}
_PUBLIC_ struct test_join *torture_join_domain(struct torture_context *tctx,
const char *machine_name,
uint32_t acct_flags,
struct cli_credentials **machine_credentials)
{
NTSTATUS status;
struct libnet_context *libnet_ctx;
struct libnet_JoinDomain *libnet_r;
struct test_join *tj;
struct samr_SetUserInfo s;
union samr_UserInfo u;
tj = talloc(tctx, struct test_join);
if (!tj) return NULL;
libnet_r = talloc(tj, struct libnet_JoinDomain);
if (!libnet_r) {
talloc_free(tj);
return NULL;
}
libnet_ctx = libnet_context_init(tctx->ev, tctx->lp_ctx);
if (!libnet_ctx) {
talloc_free(tj);
return NULL;
}
tj->libnet_r = libnet_r;
libnet_ctx->cred = cmdline_credentials;
libnet_r->in.binding = torture_setting_string(tctx, "binding", NULL);
if (!libnet_r->in.binding) {
libnet_r->in.binding = talloc_asprintf(libnet_r, "ncacn_np:%s", torture_setting_string(tctx, "host", NULL));
}
libnet_r->in.level = LIBNET_JOINDOMAIN_SPECIFIED;
libnet_r->in.netbios_name = machine_name;
libnet_r->in.account_name = talloc_asprintf(libnet_r, "%s$", machine_name);
if (!libnet_r->in.account_name) {
talloc_free(tj);
return NULL;
}
libnet_r->in.acct_type = acct_flags;
libnet_r->in.recreate_account = true;
status = libnet_JoinDomain(libnet_ctx, libnet_r, libnet_r);
if (!NT_STATUS_IS_OK(status)) {
if (libnet_r->out.error_string) {
DEBUG(0, ("Domain join failed - %s\n", libnet_r->out.error_string));
} else {
DEBUG(0, ("Domain join failed - %s\n", nt_errstr(status)));
}
talloc_free(tj);
return NULL;
}
tj->p = libnet_r->out.samr_pipe;
tj->user_handle = *libnet_r->out.user_handle;
tj->dom_sid = libnet_r->out.domain_sid;
talloc_steal(tj, libnet_r->out.domain_sid);
tj->dom_netbios_name = libnet_r->out.domain_name;
talloc_steal(tj, libnet_r->out.domain_name);
tj->dom_dns_name = libnet_r->out.realm;
talloc_steal(tj, libnet_r->out.realm);
tj->user_guid = libnet_r->out.account_guid;
tj->netbios_name = talloc_strdup(tj, machine_name);
if (!tj->netbios_name) {
talloc_free(tj);
return NULL;
}
ZERO_STRUCT(u);
s.in.user_handle = &tj->user_handle;
s.in.info = &u;
s.in.level = 21;
u.info21.fields_present = SAMR_FIELD_DESCRIPTION | SAMR_FIELD_COMMENT | SAMR_FIELD_FULL_NAME;
u.info21.comment.string = talloc_asprintf(tj,
"Tortured by Samba4: %s",
timestring(tj, time(NULL)));
u.info21.full_name.string = talloc_asprintf(tj,
"Torture account for Samba4: %s",
timestring(tj, time(NULL)));
u.info21.description.string = talloc_asprintf(tj,
"Samba4 torture account created by host %s: %s",
lp_netbios_name(tctx->lp_ctx), timestring(tj, time(NULL)));
status = dcerpc_samr_SetUserInfo(tj->p, tj, &s);
if (!NT_STATUS_IS_OK(status)) {
printf("SetUserInfo (non-critical) failed - %s\n", nt_errstr(status));
}
*machine_credentials = cli_credentials_init(tj);
cli_credentials_set_conf(*machine_credentials, tctx->lp_ctx);
cli_credentials_set_workstation(*machine_credentials, machine_name, CRED_SPECIFIED);
cli_credentials_set_domain(*machine_credentials, libnet_r->out.domain_name, CRED_SPECIFIED);
if (libnet_r->out.realm) {
cli_credentials_set_realm(*machine_credentials, libnet_r->out.realm, CRED_SPECIFIED);
}
cli_credentials_set_username(*machine_credentials, libnet_r->in.account_name, CRED_SPECIFIED);
cli_credentials_set_password(*machine_credentials, libnet_r->out.join_password, CRED_SPECIFIED);
cli_credentials_set_kvno(*machine_credentials, libnet_r->out.kvno);
if (acct_flags & ACB_SVRTRUST) {
cli_credentials_set_secure_channel_type(*machine_credentials,
SEC_CHAN_BDC);
} else if (acct_flags & ACB_WSTRUST) {
cli_credentials_set_secure_channel_type(*machine_credentials,
SEC_CHAN_WKSTA);
} else {
DEBUG(0, ("Invalid account type specificed to torture_join_domain\n"));
talloc_free(*machine_credentials);
return NULL;
}
return tj;
}
static void manage_gensec_request(enum stdio_helper_mode stdio_helper_mode,
struct loadparm_context *lp_ctx,
char *buf, int length, void **private1,
unsigned int mux_id, void **private2)
{
DATA_BLOB in;
DATA_BLOB out = data_blob(NULL, 0);
char *out_base64 = NULL;
const char *reply_arg = NULL;
struct gensec_ntlm_state {
struct gensec_security *gensec_state;
const char *set_password;
};
struct gensec_ntlm_state *state;
struct tevent_context *ev;
struct imessaging_context *msg;
NTSTATUS nt_status;
bool first = false;
const char *reply_code;
struct cli_credentials *creds;
static char *want_feature_list = NULL;
static DATA_BLOB session_key;
TALLOC_CTX *mem_ctx;
if (*private1) {
state = (struct gensec_ntlm_state *)*private1;
} else {
state = talloc_zero(NULL, struct gensec_ntlm_state);
if (!state) {
mux_printf(mux_id, "BH No Memory\n");
exit(1);
}
*private1 = state;
if (opt_password) {
state->set_password = opt_password;
}
}
if (strlen(buf) < 2) {
DEBUG(1, ("query [%s] invalid", buf));
mux_printf(mux_id, "BH Query invalid\n");
return;
}
if (strlen(buf) > 3) {
if(strncmp(buf, "SF ", 3) == 0) {
DEBUG(10, ("Setting flags to negotiate\n"));
talloc_free(want_feature_list);
want_feature_list = talloc_strndup(state, buf+3, strlen(buf)-3);
mux_printf(mux_id, "OK\n");
return;
}
in = base64_decode_data_blob(buf + 3);
} else {
in = data_blob(NULL, 0);
}
if (strncmp(buf, "YR", 2) == 0) {
if (state->gensec_state) {
talloc_free(state->gensec_state);
state->gensec_state = NULL;
}
} else if ( (strncmp(buf, "OK", 2) == 0)) {
/* Just return BH, like ntlm_auth from Samba 3 does. */
mux_printf(mux_id, "BH Command expected\n");
data_blob_free(&in);
return;
} else if ( (strncmp(buf, "TT ", 3) != 0) &&
(strncmp(buf, "KK ", 3) != 0) &&
(strncmp(buf, "AF ", 3) != 0) &&
(strncmp(buf, "NA ", 3) != 0) &&
(strncmp(buf, "UG", 2) != 0) &&
(strncmp(buf, "PW ", 3) != 0) &&
(strncmp(buf, "GK", 2) != 0) &&
(strncmp(buf, "GF", 2) != 0)) {
DEBUG(1, ("SPNEGO request [%s] invalid\n", buf));
mux_printf(mux_id, "BH SPNEGO request invalid\n");
data_blob_free(&in);
return;
}
ev = s4_event_context_init(state);
if (!ev) {
exit(1);
}
mem_ctx = talloc_named(NULL, 0, "manage_gensec_request internal mem_ctx");
/* setup gensec */
if (!(state->gensec_state)) {
switch (stdio_helper_mode) {
case GSS_SPNEGO_CLIENT:
case NTLMSSP_CLIENT_1:
/* setup the client side */
nt_status = gensec_client_start(NULL, &state->gensec_state, ev,
lpcfg_gensec_settings(NULL, lp_ctx));
if (!NT_STATUS_IS_OK(nt_status)) {
talloc_free(mem_ctx);
exit(1);
}
break;
case GSS_SPNEGO_SERVER:
case SQUID_2_5_NTLMSSP:
{
const char *winbind_method[] = { "winbind", NULL };
struct auth4_context *auth_context;
msg = imessaging_client_init(state, lpcfg_imessaging_path(state, lp_ctx), ev);
if (!msg) {
talloc_free(mem_ctx);
exit(1);
}
nt_status = auth_context_create_methods(mem_ctx,
winbind_method,
ev,
msg,
lp_ctx,
NULL,
&auth_context);
if (!NT_STATUS_IS_OK(nt_status)) {
talloc_free(mem_ctx);
exit(1);
}
if (!NT_STATUS_IS_OK(gensec_server_start(state, ev,
lpcfg_gensec_settings(state, lp_ctx),
auth_context, &state->gensec_state))) {
talloc_free(mem_ctx);
exit(1);
}
break;
}
default:
talloc_free(mem_ctx);
abort();
}
creds = cli_credentials_init(state->gensec_state);
cli_credentials_set_conf(creds, lp_ctx);
if (opt_username) {
cli_credentials_set_username(creds, opt_username, CRED_SPECIFIED);
}
if (opt_domain) {
cli_credentials_set_domain(creds, opt_domain, CRED_SPECIFIED);
}
if (state->set_password) {
cli_credentials_set_password(creds, state->set_password, CRED_SPECIFIED);
} else {
cli_credentials_set_password_callback(creds, get_password);
creds->priv_data = (void*)(uintptr_t)mux_id;
}
if (opt_workstation) {
cli_credentials_set_workstation(creds, opt_workstation, CRED_SPECIFIED);
}
switch (stdio_helper_mode) {
case GSS_SPNEGO_SERVER:
case SQUID_2_5_NTLMSSP:
cli_credentials_set_machine_account(creds, lp_ctx);
break;
default:
break;
}
gensec_set_credentials(state->gensec_state, creds);
gensec_want_feature_list(state->gensec_state, want_feature_list);
switch (stdio_helper_mode) {
case GSS_SPNEGO_CLIENT:
case GSS_SPNEGO_SERVER:
nt_status = gensec_start_mech_by_oid(state->gensec_state, GENSEC_OID_SPNEGO);
if (!in.length) {
first = true;
}
break;
case NTLMSSP_CLIENT_1:
if (!in.length) {
first = true;
}
/* fall through */
case SQUID_2_5_NTLMSSP:
nt_status = gensec_start_mech_by_oid(state->gensec_state, GENSEC_OID_NTLMSSP);
break;
default:
talloc_free(mem_ctx);
abort();
}
if (!NT_STATUS_IS_OK(nt_status)) {
DEBUG(1, ("GENSEC mech failed to start: %s\n", nt_errstr(nt_status)));
mux_printf(mux_id, "BH GENSEC mech failed to start\n");
talloc_free(mem_ctx);
return;
}
}
/* update */
if (strncmp(buf, "PW ", 3) == 0) {
state->set_password = talloc_strndup(state,
(const char *)in.data,
in.length);
cli_credentials_set_password(gensec_get_credentials(state->gensec_state),
state->set_password,
CRED_SPECIFIED);
mux_printf(mux_id, "OK\n");
data_blob_free(&in);
talloc_free(mem_ctx);
return;
}
if (strncmp(buf, "UG", 2) == 0) {
int i;
char *grouplist = NULL;
struct auth_session_info *session_info;
nt_status = gensec_session_info(state->gensec_state, mem_ctx, &session_info);
if (!NT_STATUS_IS_OK(nt_status)) {
DEBUG(1, ("gensec_session_info failed: %s\n", nt_errstr(nt_status)));
mux_printf(mux_id, "BH %s\n", nt_errstr(nt_status));
data_blob_free(&in);
talloc_free(mem_ctx);
return;
}
/* get the string onto the context */
grouplist = talloc_strdup(mem_ctx, "");
for (i=0; i<session_info->security_token->num_sids; i++) {
struct security_token *token = session_info->security_token;
const char *sidstr = dom_sid_string(session_info,
&token->sids[i]);
grouplist = talloc_asprintf_append_buffer(grouplist, "%s,", sidstr);
}
mux_printf(mux_id, "GL %s\n", grouplist);
talloc_free(session_info);
data_blob_free(&in);
talloc_free(mem_ctx);
return;
}
if (strncmp(buf, "GK", 2) == 0) {
char *base64_key;
DEBUG(10, ("Requested session key\n"));
nt_status = gensec_session_key(state->gensec_state, mem_ctx, &session_key);
if(!NT_STATUS_IS_OK(nt_status)) {
DEBUG(1, ("gensec_session_key failed: %s\n", nt_errstr(nt_status)));
mux_printf(mux_id, "BH No session key\n");
talloc_free(mem_ctx);
return;
} else {
base64_key = base64_encode_data_blob(state, session_key);
mux_printf(mux_id, "GK %s\n", base64_key);
talloc_free(base64_key);
}
talloc_free(mem_ctx);
return;
}
if (strncmp(buf, "GF", 2) == 0) {
struct ntlmssp_state *ntlmssp_state;
uint32_t neg_flags;
ntlmssp_state = talloc_get_type(state->gensec_state->private_data,
struct ntlmssp_state);
neg_flags = ntlmssp_state->neg_flags;
DEBUG(10, ("Requested negotiated feature flags\n"));
mux_printf(mux_id, "GF 0x%08x\n", neg_flags);
return;
}
nt_status = gensec_update(state->gensec_state, mem_ctx, in, &out);
/* don't leak 'bad password'/'no such user' info to the network client */
nt_status = nt_status_squash(nt_status);
if (out.length) {
out_base64 = base64_encode_data_blob(mem_ctx, out);
} else {
out_base64 = NULL;
}
if (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
reply_arg = "*";
if (first) {
reply_code = "YR";
} else if (state->gensec_state->gensec_role == GENSEC_CLIENT) {
reply_code = "KK";
} else if (state->gensec_state->gensec_role == GENSEC_SERVER) {
reply_code = "TT";
} else {
abort();
}
} else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_ACCESS_DENIED)) {
reply_code = "BH NT_STATUS_ACCESS_DENIED";
reply_arg = nt_errstr(nt_status);
DEBUG(1, ("GENSEC login failed: %s\n", nt_errstr(nt_status)));
} else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_UNSUCCESSFUL)) {
reply_code = "BH NT_STATUS_UNSUCCESSFUL";
reply_arg = nt_errstr(nt_status);
DEBUG(1, ("GENSEC login failed: %s\n", nt_errstr(nt_status)));
} else if (!NT_STATUS_IS_OK(nt_status)) {
reply_code = "NA";
reply_arg = nt_errstr(nt_status);
DEBUG(1, ("GENSEC login failed: %s\n", nt_errstr(nt_status)));
} else if /* OK */ (state->gensec_state->gensec_role == GENSEC_SERVER) {
struct auth_session_info *session_info;
nt_status = gensec_session_info(state->gensec_state, mem_ctx, &session_info);
if (!NT_STATUS_IS_OK(nt_status)) {
reply_code = "BH Failed to retrive session info";
reply_arg = nt_errstr(nt_status);
DEBUG(1, ("GENSEC failed to retrieve the session info: %s\n", nt_errstr(nt_status)));
} else {
reply_code = "AF";
reply_arg = talloc_asprintf(state->gensec_state,
"%s%s%s", session_info->info->domain_name,
lpcfg_winbind_separator(lp_ctx), session_info->info->account_name);
talloc_free(session_info);
}
} else if (state->gensec_state->gensec_role == GENSEC_CLIENT) {
reply_code = "AF";
reply_arg = out_base64;
} else {
abort();
}
switch (stdio_helper_mode) {
case GSS_SPNEGO_SERVER:
mux_printf(mux_id, "%s %s %s\n", reply_code,
out_base64 ? out_base64 : "*",
reply_arg ? reply_arg : "*");
break;
default:
if (out_base64) {
mux_printf(mux_id, "%s %s\n", reply_code, out_base64);
} else if (reply_arg) {
mux_printf(mux_id, "%s %s\n", reply_code, reply_arg);
} else {
mux_printf(mux_id, "%s\n", reply_code);
}
}
talloc_free(mem_ctx);
return;
}
/* Hook to allow GENSEC to handle blob-based authentication
* mechanisms, without directly linking the mechansim code */
static NTSTATUS prepare_gensec(TALLOC_CTX *mem_ctx,
struct gensec_security **gensec_context)
{
NTSTATUS status;
struct loadparm_context *lp_ctx;
struct tevent_context *event_ctx;
TALLOC_CTX *frame = talloc_stackframe();
struct gensec_security *gensec_ctx;
struct imessaging_context *msg_ctx;
struct cli_credentials *server_credentials;
lp_ctx = loadparm_init_s3(frame, loadparm_s3_context());
if (lp_ctx == NULL) {
DEBUG(1, ("loadparm_init_s3 failed\n"));
TALLOC_FREE(frame);
return NT_STATUS_INVALID_SERVER_STATE;
}
event_ctx = s4_event_context_init(frame);
if (event_ctx == NULL) {
DEBUG(1, ("s4_event_context_init failed\n"));
TALLOC_FREE(frame);
return NT_STATUS_INVALID_SERVER_STATE;
}
msg_ctx = imessaging_client_init(frame,
lp_ctx,
event_ctx);
if (msg_ctx == NULL) {
DEBUG(1, ("imessaging_init failed\n"));
TALLOC_FREE(frame);
return NT_STATUS_INVALID_SERVER_STATE;
}
server_credentials
= cli_credentials_init(frame);
if (!server_credentials) {
DEBUG(1, ("Failed to init server credentials"));
TALLOC_FREE(frame);
return NT_STATUS_INVALID_SERVER_STATE;
}
cli_credentials_set_conf(server_credentials, lp_ctx);
status = cli_credentials_set_machine_account(server_credentials, lp_ctx);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(10, ("Failed to obtain server credentials, perhaps a standalone server?: %s\n", nt_errstr(status)));
talloc_free(server_credentials);
server_credentials = NULL;
}
status = samba_server_gensec_start(mem_ctx,
event_ctx, msg_ctx,
lp_ctx, server_credentials, "cifs",
&gensec_ctx);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(1, ("Failed to start GENSEC server code: %s\n", nt_errstr(status)));
TALLOC_FREE(frame);
return status;
}
talloc_reparent(frame, gensec_ctx, msg_ctx);
talloc_reparent(frame, gensec_ctx, event_ctx);
talloc_reparent(frame, gensec_ctx, lp_ctx);
talloc_reparent(frame, gensec_ctx, server_credentials);
gensec_want_feature(gensec_ctx, GENSEC_FEATURE_SESSION_KEY);
gensec_want_feature(gensec_ctx, GENSEC_FEATURE_UNIX_TOKEN);
*gensec_context = gensec_ctx;
TALLOC_FREE(frame);
return status;
}
/* Get some basic (and authorization) information about the user on
* this session. This uses either the PAC (if present) or a local
* database lookup */
static NTSTATUS gensec_gssapi_session_info(struct gensec_security *gensec_security,
TALLOC_CTX *mem_ctx,
struct auth_session_info **_session_info)
{
NTSTATUS nt_status;
TALLOC_CTX *tmp_ctx;
struct gensec_gssapi_state *gensec_gssapi_state
= talloc_get_type(gensec_security->private_data, struct gensec_gssapi_state);
struct auth_session_info *session_info = NULL;
OM_uint32 maj_stat, min_stat;
DATA_BLOB pac_blob, *pac_blob_ptr = NULL;
gss_buffer_desc name_token;
char *principal_string;
tmp_ctx = talloc_named(mem_ctx, 0, "gensec_gssapi_session_info context");
NT_STATUS_HAVE_NO_MEMORY(tmp_ctx);
maj_stat = gss_display_name (&min_stat,
gensec_gssapi_state->client_name,
&name_token,
NULL);
if (GSS_ERROR(maj_stat)) {
DEBUG(1, ("GSS display_name failed: %s\n",
gssapi_error_string(tmp_ctx, maj_stat, min_stat, gensec_gssapi_state->gss_oid)));
talloc_free(tmp_ctx);
return NT_STATUS_FOOBAR;
}
principal_string = talloc_strndup(tmp_ctx,
(const char *)name_token.value,
name_token.length);
gss_release_buffer(&min_stat, &name_token);
if (!principal_string) {
talloc_free(tmp_ctx);
return NT_STATUS_NO_MEMORY;
}
nt_status = gssapi_obtain_pac_blob(tmp_ctx, gensec_gssapi_state->gssapi_context,
gensec_gssapi_state->client_name,
&pac_blob);
/* IF we have the PAC - otherwise we need to get this
* data from elsewere - local ldb, or (TODO) lookup of some
* kind...
*/
if (NT_STATUS_IS_OK(nt_status)) {
pac_blob_ptr = &pac_blob;
}
nt_status = gensec_generate_session_info_pac(tmp_ctx,
gensec_security,
gensec_gssapi_state->smb_krb5_context,
pac_blob_ptr, principal_string,
gensec_get_remote_address(gensec_security),
&session_info);
if (!NT_STATUS_IS_OK(nt_status)) {
talloc_free(tmp_ctx);
return nt_status;
}
nt_status = gensec_gssapi_session_key(gensec_security, session_info, &session_info->session_key);
if (!NT_STATUS_IS_OK(nt_status)) {
talloc_free(tmp_ctx);
return nt_status;
}
if (gensec_gssapi_state->gss_got_flags & GSS_C_DELEG_FLAG &&
gensec_gssapi_state->delegated_cred_handle != GSS_C_NO_CREDENTIAL) {
krb5_error_code ret;
const char *error_string;
DEBUG(10, ("gensec_gssapi: delegated credentials supplied by client\n"));
session_info->credentials = cli_credentials_init(session_info);
if (!session_info->credentials) {
talloc_free(tmp_ctx);
return NT_STATUS_NO_MEMORY;
}
cli_credentials_set_conf(session_info->credentials, gensec_security->settings->lp_ctx);
/* Just so we don't segfault trying to get at a username */
cli_credentials_set_anonymous(session_info->credentials);
ret = cli_credentials_set_client_gss_creds(session_info->credentials,
gensec_security->settings->lp_ctx,
gensec_gssapi_state->delegated_cred_handle,
CRED_SPECIFIED, &error_string);
if (ret) {
talloc_free(tmp_ctx);
DEBUG(2,("Failed to get gss creds: %s\n", error_string));
return NT_STATUS_NO_MEMORY;
}
/* This credential handle isn't useful for password authentication, so ensure nobody tries to do that */
cli_credentials_set_kerberos_state(session_info->credentials, CRED_MUST_USE_KERBEROS);
/* It has been taken from this place... */
gensec_gssapi_state->delegated_cred_handle = GSS_C_NO_CREDENTIAL;
} else {
DEBUG(10, ("gensec_gssapi: NO delegated credentials supplied by client\n"));
}
*_session_info = talloc_steal(mem_ctx, session_info);
talloc_free(tmp_ctx);
return NT_STATUS_OK;
}
/*
initialise a server_context from a open socket and register a event handler
for reading from that socket
*/
static void ldapsrv_accept(struct stream_connection *c,
struct auth_session_info *session_info,
bool is_privileged)
{
struct ldapsrv_service *ldapsrv_service =
talloc_get_type(c->private_data, struct ldapsrv_service);
struct ldapsrv_connection *conn;
struct cli_credentials *server_credentials;
struct socket_address *socket_address;
NTSTATUS status;
int port;
int ret;
struct tevent_req *subreq;
struct timeval endtime;
conn = talloc_zero(c, struct ldapsrv_connection);
if (!conn) {
stream_terminate_connection(c, "ldapsrv_accept: out of memory");
return;
}
conn->is_privileged = is_privileged;
conn->sockets.send_queue = tevent_queue_create(conn, "ldapsev send queue");
if (conn->sockets.send_queue == NULL) {
stream_terminate_connection(c,
"ldapsrv_accept: tevent_queue_create failed");
return;
}
TALLOC_FREE(c->event.fde);
ret = tstream_bsd_existing_socket(conn,
socket_get_fd(c->socket),
&conn->sockets.raw);
if (ret == -1) {
stream_terminate_connection(c,
"ldapsrv_accept: out of memory");
return;
}
socket_set_flags(c->socket, SOCKET_FLAG_NOCLOSE);
conn->connection = c;
conn->service = ldapsrv_service;
conn->lp_ctx = ldapsrv_service->task->lp_ctx;
c->private_data = conn;
socket_address = socket_get_my_addr(c->socket, conn);
if (!socket_address) {
ldapsrv_terminate_connection(conn, "ldapsrv_accept: failed to obtain local socket address!");
return;
}
port = socket_address->port;
talloc_free(socket_address);
if (port == 3268 || port == 3269) /* Global catalog */ {
conn->global_catalog = true;
}
server_credentials = cli_credentials_init(conn);
if (!server_credentials) {
stream_terminate_connection(c, "Failed to init server credentials\n");
return;
}
cli_credentials_set_conf(server_credentials, conn->lp_ctx);
status = cli_credentials_set_machine_account(server_credentials, conn->lp_ctx);
if (!NT_STATUS_IS_OK(status)) {
stream_terminate_connection(c, talloc_asprintf(conn, "Failed to obtain server credentials, perhaps a standalone server?: %s\n", nt_errstr(status)));
return;
}
conn->server_credentials = server_credentials;
conn->session_info = session_info;
if (!NT_STATUS_IS_OK(ldapsrv_backend_Init(conn))) {
ldapsrv_terminate_connection(conn, "backend Init failed");
return;
}
/* load limits from the conf partition */
ldapsrv_load_limits(conn); /* should we fail on error ? */
/* register the server */
irpc_add_name(c->msg_ctx, "ldap_server");
conn->sockets.active = conn->sockets.raw;
if (port != 636 && port != 3269) {
ldapsrv_call_read_next(conn);
return;
}
endtime = timeval_current_ofs(conn->limits.conn_idle_time, 0);
subreq = tstream_tls_accept_send(conn,
conn->connection->event.ctx,
conn->sockets.raw,
conn->service->tls_params);
if (subreq == NULL) {
ldapsrv_terminate_connection(conn, "ldapsrv_accept: "
"no memory for tstream_tls_accept_send");
return;
}
tevent_req_set_endtime(subreq,
conn->connection->event.ctx,
endtime);
tevent_req_set_callback(subreq, ldapsrv_accept_tls_done, conn);
}
/*
authorize a zone update
*/
_PUBLIC_ isc_boolean_t dlz_ssumatch(const char *signer, const char *name, const char *tcpaddr,
const char *type, const char *key, uint32_t keydatalen, uint8_t *keydata,
void *dbdata)
{
struct dlz_bind9_data *state = talloc_get_type_abort(dbdata, struct dlz_bind9_data);
TALLOC_CTX *tmp_ctx;
DATA_BLOB ap_req;
struct cli_credentials *server_credentials;
char *keytab_name;
int ret;
int ldb_ret;
NTSTATUS nt_status;
struct gensec_security *gensec_ctx;
struct auth_session_info *session_info;
struct ldb_dn *dn;
isc_result_t result;
struct ldb_result *res;
const char * attrs[] = { NULL };
uint32_t access_mask;
/* Remove cached credentials, if any */
if (state->session_info) {
talloc_free(state->session_info);
state->session_info = NULL;
}
if (state->update_name) {
talloc_free(state->update_name);
state->update_name = NULL;
}
tmp_ctx = talloc_new(NULL);
if (tmp_ctx == NULL) {
state->log(ISC_LOG_ERROR, "samba_dlz: no memory");
return ISC_FALSE;
}
ap_req = data_blob_const(keydata, keydatalen);
server_credentials = cli_credentials_init(tmp_ctx);
if (!server_credentials) {
state->log(ISC_LOG_ERROR, "samba_dlz: failed to init server credentials");
talloc_free(tmp_ctx);
return ISC_FALSE;
}
cli_credentials_set_krb5_context(server_credentials, state->smb_krb5_ctx);
cli_credentials_set_conf(server_credentials, state->lp);
keytab_name = talloc_asprintf(tmp_ctx, "file:%s/dns.keytab",
lpcfg_private_dir(state->lp));
ret = cli_credentials_set_keytab_name(server_credentials, state->lp, keytab_name,
CRED_SPECIFIED);
if (ret != 0) {
state->log(ISC_LOG_ERROR, "samba_dlz: failed to obtain server credentials from %s",
keytab_name);
talloc_free(tmp_ctx);
return ISC_FALSE;
}
talloc_free(keytab_name);
nt_status = gensec_server_start(tmp_ctx,
lpcfg_gensec_settings(tmp_ctx, state->lp),
state->auth_context, &gensec_ctx);
if (!NT_STATUS_IS_OK(nt_status)) {
state->log(ISC_LOG_ERROR, "samba_dlz: failed to start gensec server");
talloc_free(tmp_ctx);
return ISC_FALSE;
}
gensec_set_credentials(gensec_ctx, server_credentials);
nt_status = gensec_start_mech_by_name(gensec_ctx, "spnego");
if (!NT_STATUS_IS_OK(nt_status)) {
state->log(ISC_LOG_ERROR, "samba_dlz: failed to start spnego");
talloc_free(tmp_ctx);
return ISC_FALSE;
}
nt_status = gensec_update(gensec_ctx, tmp_ctx, state->ev_ctx, ap_req, &ap_req);
if (!NT_STATUS_IS_OK(nt_status)) {
state->log(ISC_LOG_ERROR, "samba_dlz: spnego update failed");
talloc_free(tmp_ctx);
return ISC_FALSE;
}
nt_status = gensec_session_info(gensec_ctx, tmp_ctx, &session_info);
if (!NT_STATUS_IS_OK(nt_status)) {
state->log(ISC_LOG_ERROR, "samba_dlz: failed to create session info");
talloc_free(tmp_ctx);
return ISC_FALSE;
}
/* Get the DN from name */
result = b9_find_name_dn(state, name, tmp_ctx, &dn);
if (result != ISC_R_SUCCESS) {
state->log(ISC_LOG_ERROR, "samba_dlz: failed to find name %s", name);
talloc_free(tmp_ctx);
return ISC_FALSE;
}
/* make sure the dn exists, or find parent dn in case new object is being added */
ldb_ret = ldb_search(state->samdb, tmp_ctx, &res, dn, LDB_SCOPE_BASE,
attrs, "objectClass=dnsNode");
if (ldb_ret == LDB_ERR_NO_SUCH_OBJECT) {
ldb_dn_remove_child_components(dn, 1);
access_mask = SEC_ADS_CREATE_CHILD;
talloc_free(res);
} else if (ldb_ret == LDB_SUCCESS) {
access_mask = SEC_STD_REQUIRED | SEC_ADS_SELF_WRITE;
talloc_free(res);
} else {
talloc_free(tmp_ctx);
return ISC_FALSE;
}
/* Do ACL check */
ldb_ret = dsdb_check_access_on_dn(state->samdb, tmp_ctx, dn,
session_info->security_token,
access_mask, NULL);
if (ldb_ret != LDB_SUCCESS) {
state->log(ISC_LOG_INFO,
"samba_dlz: disallowing update of signer=%s name=%s type=%s error=%s",
signer, name, type, ldb_strerror(ldb_ret));
talloc_free(tmp_ctx);
return ISC_FALSE;
}
/* Cache session_info, so it can be used in the actual add/delete operation */
state->update_name = talloc_strdup(state, name);
if (state->update_name == NULL) {
state->log(ISC_LOG_ERROR, "samba_dlz: memory allocation error");
talloc_free(tmp_ctx);
return ISC_FALSE;
}
state->session_info = talloc_steal(state, session_info);
state->log(ISC_LOG_INFO, "samba_dlz: allowing update of signer=%s name=%s tcpaddr=%s type=%s key=%s",
signer, name, tcpaddr, type, key);
talloc_free(tmp_ctx);
return ISC_TRUE;
}
/*
initialise a server_context from a open socket and register a event handler
for reading from that socket
*/
static void ldapsrv_accept(struct stream_connection *c,
struct auth_session_info *session_info)
{
struct ldapsrv_service *ldapsrv_service =
talloc_get_type(c->private_data, struct ldapsrv_service);
struct ldapsrv_connection *conn;
struct cli_credentials *server_credentials;
struct socket_address *socket_address;
NTSTATUS status;
int port;
conn = talloc_zero(c, struct ldapsrv_connection);
if (!conn) {
stream_terminate_connection(c, "ldapsrv_accept: out of memory");
return;
}
conn->packet = NULL;
conn->connection = c;
conn->service = ldapsrv_service;
conn->sockets.raw = c->socket;
conn->lp_ctx = ldapsrv_service->task->lp_ctx;
c->private_data = conn;
socket_address = socket_get_my_addr(c->socket, conn);
if (!socket_address) {
ldapsrv_terminate_connection(conn, "ldapsrv_accept: failed to obtain local socket address!");
return;
}
port = socket_address->port;
talloc_free(socket_address);
if (port == 636) {
struct socket_context *tls_socket = tls_init_server(ldapsrv_service->tls_params, c->socket,
c->event.fde, NULL);
if (!tls_socket) {
ldapsrv_terminate_connection(conn, "ldapsrv_accept: tls_init_server() failed");
return;
}
talloc_steal(c, tls_socket);
c->socket = tls_socket;
conn->sockets.tls = tls_socket;
} else if (port == 3268) /* Global catalog */ {
conn->global_catalog = true;
}
conn->packet = packet_init(conn);
if (conn->packet == NULL) {
ldapsrv_terminate_connection(conn, "out of memory");
return;
}
packet_set_private(conn->packet, conn);
packet_set_socket(conn->packet, c->socket);
packet_set_callback(conn->packet, ldapsrv_decode);
packet_set_full_request(conn->packet, ldap_full_packet);
packet_set_error_handler(conn->packet, ldapsrv_error_handler);
packet_set_event_context(conn->packet, c->event.ctx);
packet_set_fde(conn->packet, c->event.fde);
packet_set_serialise(conn->packet);
if (conn->sockets.tls) {
packet_set_unreliable_select(conn->packet);
}
/* Ensure we don't get packets until the database is ready below */
packet_recv_disable(conn->packet);
server_credentials = cli_credentials_init(conn);
if (!server_credentials) {
stream_terminate_connection(c, "Failed to init server credentials\n");
return;
}
cli_credentials_set_conf(server_credentials, conn->lp_ctx);
status = cli_credentials_set_machine_account(server_credentials, conn->lp_ctx);
if (!NT_STATUS_IS_OK(status)) {
stream_terminate_connection(c, talloc_asprintf(conn, "Failed to obtain server credentials, perhaps a standalone server?: %s\n", nt_errstr(status)));
return;
}
conn->server_credentials = server_credentials;
conn->session_info = talloc_move(conn, &session_info);
if (!NT_STATUS_IS_OK(ldapsrv_backend_Init(conn))) {
ldapsrv_terminate_connection(conn, "backend Init failed");
return;
}
/* load limits from the conf partition */
ldapsrv_load_limits(conn); /* should we fail on error ? */
/* register the server */
irpc_add_name(c->msg_ctx, "ldap_server");
/* set connections limits */
conn->limits.ite = event_add_timed(c->event.ctx, conn,
timeval_current_ofs(conn->limits.initial_timeout, 0),
ldapsrv_conn_init_timeout, conn);
packet_recv_enable(conn->packet);
}
NTSTATUS libnet_SamSync_netlogon(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, struct libnet_SamSync *r)
{
NTSTATUS nt_status, dbsync_nt_status;
TALLOC_CTX *samsync_ctx, *loop_ctx, *delta_ctx;
struct netlogon_creds_CredentialState *creds;
struct netr_DatabaseSync dbsync;
struct netr_Authenticator credential, return_authenticator;
struct netr_DELTA_ENUM_ARRAY *delta_enum_array = NULL;
struct cli_credentials *machine_account;
struct dcerpc_pipe *p;
struct libnet_context *machine_net_ctx;
struct libnet_RpcConnect *c;
struct libnet_SamSync_state *state;
const enum netr_SamDatabaseID database_ids[] = {SAM_DATABASE_DOMAIN, SAM_DATABASE_BUILTIN, SAM_DATABASE_PRIVS};
unsigned int i;
samsync_ctx = talloc_named(mem_ctx, 0, "SamSync top context");
if (!r->in.machine_account) {
machine_account = cli_credentials_init(samsync_ctx);
if (!machine_account) {
talloc_free(samsync_ctx);
return NT_STATUS_NO_MEMORY;
}
cli_credentials_set_conf(machine_account, ctx->lp_ctx);
nt_status = cli_credentials_set_machine_account(machine_account, ctx->lp_ctx);
if (!NT_STATUS_IS_OK(nt_status)) {
r->out.error_string = talloc_strdup(mem_ctx, "Could not obtain machine account password - are we joined to the domain?");
talloc_free(samsync_ctx);
return nt_status;
}
} else {
machine_account = r->in.machine_account;
}
/* We cannot do this unless we are a BDC. Check, before we get odd errors later */
if (cli_credentials_get_secure_channel_type(machine_account) != SEC_CHAN_BDC) {
r->out.error_string
= talloc_asprintf(mem_ctx,
"Our join to domain %s is not as a BDC (%d), please rejoin as a BDC",
cli_credentials_get_domain(machine_account),
cli_credentials_get_secure_channel_type(machine_account));
talloc_free(samsync_ctx);
return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
}
c = talloc_zero(samsync_ctx, struct libnet_RpcConnect);
if (!c) {
r->out.error_string = NULL;
talloc_free(samsync_ctx);
return NT_STATUS_NO_MEMORY;
}
c->level = LIBNET_RPC_CONNECT_DC_INFO;
if (r->in.binding_string) {
c->in.binding = r->in.binding_string;
c->in.name = NULL;
} else {
c->in.binding = NULL;
c->in.name = cli_credentials_get_domain(machine_account);
}
/* prepare connect to the NETLOGON pipe of PDC */
c->in.dcerpc_iface = &ndr_table_netlogon;
/* We must do this as the machine, not as any command-line
* user. So we override the credentials in the
* libnet_context */
machine_net_ctx = talloc(samsync_ctx, struct libnet_context);
if (!machine_net_ctx) {
r->out.error_string = NULL;
talloc_free(samsync_ctx);
return NT_STATUS_NO_MEMORY;
}
*machine_net_ctx = *ctx;
machine_net_ctx->cred = machine_account;
/* connect to the NETLOGON pipe of the PDC */
nt_status = libnet_RpcConnect(machine_net_ctx, samsync_ctx, c);
if (!NT_STATUS_IS_OK(nt_status)) {
if (r->in.binding_string) {
r->out.error_string = talloc_asprintf(mem_ctx,
"Connection to NETLOGON pipe of DC %s failed: %s",
r->in.binding_string, c->out.error_string);
} else {
r->out.error_string = talloc_asprintf(mem_ctx,
"Connection to NETLOGON pipe of DC for %s failed: %s",
c->in.name, c->out.error_string);
}
talloc_free(samsync_ctx);
return nt_status;
}
/* This makes a new pipe, on which we can do schannel. We
* should do this in the RpcConnect code, but the abstaction
* layers do not suit yet */
nt_status = dcerpc_secondary_connection(c->out.dcerpc_pipe, &p,
c->out.dcerpc_pipe->binding);
if (!NT_STATUS_IS_OK(nt_status)) {
r->out.error_string = talloc_asprintf(mem_ctx,
"Secondary connection to NETLOGON pipe of DC %s failed: %s",
dcerpc_server_name(p), nt_errstr(nt_status));
talloc_free(samsync_ctx);
return nt_status;
}
nt_status = dcerpc_bind_auth_schannel(samsync_ctx, p, &ndr_table_netlogon,
machine_account, ctx->lp_ctx, DCERPC_AUTH_LEVEL_PRIVACY);
if (!NT_STATUS_IS_OK(nt_status)) {
r->out.error_string = talloc_asprintf(mem_ctx,
"SCHANNEL authentication to NETLOGON pipe of DC %s failed: %s",
dcerpc_server_name(p), nt_errstr(nt_status));
talloc_free(samsync_ctx);
return nt_status;
}
state = talloc(samsync_ctx, struct libnet_SamSync_state);
if (!state) {
r->out.error_string = NULL;
talloc_free(samsync_ctx);
return nt_status;
}
state->domain_name = c->out.domain_name;
state->domain_sid = c->out.domain_sid;
state->realm = c->out.realm;
state->domain_guid = c->out.guid;
state->machine_net_ctx = machine_net_ctx;
state->netlogon_pipe = p;
/* initialise the callback layer. It may wish to contact the
* server with ldap, now we know the name */
if (r->in.init_fn) {
char *error_string;
nt_status = r->in.init_fn(samsync_ctx,
r->in.fn_ctx,
state,
&error_string);
if (!NT_STATUS_IS_OK(nt_status)) {
r->out.error_string = talloc_steal(mem_ctx, error_string);
talloc_free(samsync_ctx);
return nt_status;
}
}
/* get NETLOGON credentials */
nt_status = dcerpc_schannel_creds(p->conn->security_state.generic_state, samsync_ctx, &creds);
if (!NT_STATUS_IS_OK(nt_status)) {
r->out.error_string = talloc_strdup(mem_ctx, "Could not obtain NETLOGON credentials from DCERPC/GENSEC layer");
talloc_free(samsync_ctx);
return nt_status;
}
/* Setup details for the synchronisation */
ZERO_STRUCT(return_authenticator);
dbsync.in.logon_server = talloc_asprintf(samsync_ctx, "\\\\%s", dcerpc_server_name(p));
dbsync.in.computername = cli_credentials_get_workstation(machine_account);
dbsync.in.preferredmaximumlength = (uint32_t)-1;
dbsync.in.return_authenticator = &return_authenticator;
dbsync.out.return_authenticator = &return_authenticator;
dbsync.out.delta_enum_array = &delta_enum_array;
for (i=0;i< ARRAY_SIZE(database_ids); i++) {
uint32_t sync_context = 0;
dbsync.in.database_id = database_ids[i];
dbsync.in.sync_context = &sync_context;
dbsync.out.sync_context = &sync_context;
do {
uint32_t d;
loop_ctx = talloc_named(samsync_ctx, 0, "DatabaseSync loop context");
netlogon_creds_client_authenticator(creds, &credential);
dbsync.in.credential = &credential;
dbsync_nt_status = dcerpc_netr_DatabaseSync_r(p->binding_handle, loop_ctx, &dbsync);
if (NT_STATUS_IS_OK(dbsync_nt_status) && !NT_STATUS_IS_OK(dbsync.out.result)) {
dbsync_nt_status = dbsync.out.result;
}
if (!NT_STATUS_IS_OK(dbsync_nt_status) &&
!NT_STATUS_EQUAL(dbsync_nt_status, STATUS_MORE_ENTRIES)) {
r->out.error_string = talloc_asprintf(mem_ctx, "DatabaseSync failed - %s", nt_errstr(nt_status));
talloc_free(samsync_ctx);
return nt_status;
}
if (!netlogon_creds_client_check(creds, &dbsync.out.return_authenticator->cred)) {
r->out.error_string = talloc_strdup(mem_ctx, "Credential chaining on incoming DatabaseSync failed");
talloc_free(samsync_ctx);
return NT_STATUS_ACCESS_DENIED;
}
dbsync.in.sync_context = dbsync.out.sync_context;
/* For every single remote 'delta' entry: */
for (d=0; d < delta_enum_array->num_deltas; d++) {
char *error_string = NULL;
delta_ctx = talloc_named(loop_ctx, 0, "DatabaseSync delta context");
/* 'Fix' elements, by decrypting and
* de-obfuscating the data */
nt_status = samsync_fix_delta(delta_ctx,
creds,
dbsync.in.database_id,
&delta_enum_array->delta_enum[d]);
if (!NT_STATUS_IS_OK(nt_status)) {
r->out.error_string = talloc_steal(mem_ctx, error_string);
talloc_free(samsync_ctx);
return nt_status;
}
/* Now call the callback. This will
* do something like print the data or
* write to an ldb */
nt_status = r->in.delta_fn(delta_ctx,
r->in.fn_ctx,
dbsync.in.database_id,
&delta_enum_array->delta_enum[d],
&error_string);
if (!NT_STATUS_IS_OK(nt_status)) {
r->out.error_string = talloc_steal(mem_ctx, error_string);
talloc_free(samsync_ctx);
return nt_status;
}
talloc_free(delta_ctx);
}
talloc_free(loop_ctx);
} while (NT_STATUS_EQUAL(dbsync_nt_status, STATUS_MORE_ENTRIES));
if (!NT_STATUS_IS_OK(dbsync_nt_status)) {
r->out.error_string = talloc_asprintf(mem_ctx, "libnet_SamSync_netlogon failed: unexpected inconsistancy. Should not get error %s here", nt_errstr(nt_status));
talloc_free(samsync_ctx);
return dbsync_nt_status;
}
nt_status = NT_STATUS_OK;
}
talloc_free(samsync_ctx);
return nt_status;
}
/*
connect to a share - used when a tree_connect operation comes in.
*/
static NTSTATUS cvfs_connect(struct ntvfs_module_context *ntvfs,
struct ntvfs_request *req,
union smb_tcon *tcon)
{
NTSTATUS status;
struct cvfs_private *p;
const char *host, *user, *pass, *domain, *remote_share;
struct smb_composite_connect io;
struct composite_context *creq;
struct share_config *scfg = ntvfs->ctx->config;
struct cli_credentials *credentials;
bool machine_account;
bool s4u2proxy;
const char* sharename;
switch (tcon->generic.level) {
case RAW_TCON_TCON:
sharename = tcon->tcon.in.service;
break;
case RAW_TCON_TCONX:
sharename = tcon->tconx.in.path;
break;
case RAW_TCON_SMB2:
sharename = tcon->smb2.in.path;
break;
default:
return NT_STATUS_INVALID_LEVEL;
}
if (strncmp(sharename, "\\\\", 2) == 0) {
char *str = strchr(sharename+2, '\\');
if (str) {
sharename = str + 1;
}
}
/* Here we need to determine which server to connect to.
* For now we use parametric options, type cifs.
* Later we will use security=server and auth_server.c.
*/
host = share_string_option(scfg, CIFS_SERVER, NULL);
user = share_string_option(scfg, CIFS_USER, NULL);
pass = share_string_option(scfg, CIFS_PASSWORD, NULL);
domain = share_string_option(scfg, CIFS_DOMAIN, NULL);
remote_share = share_string_option(scfg, CIFS_SHARE, NULL);
if (!remote_share) {
remote_share = sharename;
}
machine_account = share_bool_option(scfg, CIFS_USE_MACHINE_ACCT, CIFS_USE_MACHINE_ACCT_DEFAULT);
s4u2proxy = share_bool_option(scfg, CIFS_USE_S4U2PROXY, CIFS_USE_S4U2PROXY_DEFAULT);
p = talloc_zero(ntvfs, struct cvfs_private);
if (!p) {
return NT_STATUS_NO_MEMORY;
}
ntvfs->private_data = p;
if (!host) {
DEBUG(1,("CIFS backend: You must supply server\n"));
return NT_STATUS_INVALID_PARAMETER;
}
if (user && pass) {
DEBUG(5, ("CIFS backend: Using specified password\n"));
credentials = cli_credentials_init(p);
if (!credentials) {
return NT_STATUS_NO_MEMORY;
}
cli_credentials_set_conf(credentials, ntvfs->ctx->lp_ctx);
cli_credentials_set_username(credentials, user, CRED_SPECIFIED);
if (domain) {
cli_credentials_set_domain(credentials, domain, CRED_SPECIFIED);
}
cli_credentials_set_password(credentials, pass, CRED_SPECIFIED);
} else if (machine_account) {
DEBUG(5, ("CIFS backend: Using machine account\n"));
credentials = cli_credentials_init(p);
cli_credentials_set_conf(credentials, ntvfs->ctx->lp_ctx);
if (domain) {
cli_credentials_set_domain(credentials, domain, CRED_SPECIFIED);
}
status = cli_credentials_set_machine_account(credentials, ntvfs->ctx->lp_ctx);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
} else if (req->session_info->credentials) {
DEBUG(5, ("CIFS backend: Using delegated credentials\n"));
credentials = req->session_info->credentials;
} else if (s4u2proxy) {
struct ccache_container *ccc = NULL;
const char *err_str = NULL;
int ret;
char *impersonate_principal;
char *self_service;
char *target_service;
impersonate_principal = talloc_asprintf(req, "%s@%s",
req->session_info->info->account_name,
req->session_info->info->domain_name);
self_service = talloc_asprintf(req, "cifs/%s",
lpcfg_netbios_name(ntvfs->ctx->lp_ctx));
target_service = talloc_asprintf(req, "cifs/%s", host);
DEBUG(5, ("CIFS backend: Using S4U2Proxy credentials\n"));
credentials = cli_credentials_init(p);
cli_credentials_set_conf(credentials, ntvfs->ctx->lp_ctx);
if (domain) {
cli_credentials_set_domain(credentials, domain, CRED_SPECIFIED);
}
status = cli_credentials_set_machine_account(credentials, ntvfs->ctx->lp_ctx);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
cli_credentials_invalidate_ccache(credentials, CRED_SPECIFIED);
cli_credentials_set_impersonate_principal(credentials,
impersonate_principal,
self_service);
cli_credentials_set_target_service(credentials, target_service);
ret = cli_credentials_get_ccache(credentials,
ntvfs->ctx->event_ctx,
ntvfs->ctx->lp_ctx,
&ccc,
&err_str);
if (ret != 0) {
status = NT_STATUS_CROSSREALM_DELEGATION_FAILURE;
DEBUG(1,("S4U2Proxy: cli_credentials_get_ccache() gave: ret[%d] str[%s] - %s\n",
ret, err_str, nt_errstr(status)));
return status;
}
} else {
DEBUG(1,("CIFS backend: NO delegated credentials found: You must supply server, user and password or the client must supply delegated credentials\n"));
return NT_STATUS_INTERNAL_ERROR;
}
/* connect to the server, using the smbd event context */
io.in.dest_host = host;
io.in.dest_ports = lpcfg_smb_ports(ntvfs->ctx->lp_ctx);
io.in.socket_options = lpcfg_socket_options(ntvfs->ctx->lp_ctx);
io.in.called_name = host;
io.in.credentials = credentials;
io.in.fallback_to_anonymous = false;
io.in.workgroup = lpcfg_workgroup(ntvfs->ctx->lp_ctx);
io.in.service = remote_share;
io.in.service_type = "?????";
io.in.gensec_settings = lpcfg_gensec_settings(p, ntvfs->ctx->lp_ctx);
lpcfg_smbcli_options(ntvfs->ctx->lp_ctx, &io.in.options);
lpcfg_smbcli_session_options(ntvfs->ctx->lp_ctx, &io.in.session_options);
if (!(ntvfs->ctx->client_caps & NTVFS_CLIENT_CAP_LEVEL_II_OPLOCKS)) {
io.in.options.use_level2_oplocks = false;
}
creq = smb_composite_connect_send(&io, p,
lpcfg_resolve_context(ntvfs->ctx->lp_ctx),
ntvfs->ctx->event_ctx);
status = smb_composite_connect_recv(creq, p);
NT_STATUS_NOT_OK_RETURN(status);
p->tree = io.out.tree;
p->transport = p->tree->session->transport;
SETUP_PID;
p->ntvfs = ntvfs;
ntvfs->ctx->fs_type = talloc_strdup(ntvfs->ctx, "NTFS");
NT_STATUS_HAVE_NO_MEMORY(ntvfs->ctx->fs_type);
ntvfs->ctx->dev_type = talloc_strdup(ntvfs->ctx, "A:");
NT_STATUS_HAVE_NO_MEMORY(ntvfs->ctx->dev_type);
if (tcon->generic.level == RAW_TCON_TCONX) {
tcon->tconx.out.fs_type = ntvfs->ctx->fs_type;
tcon->tconx.out.dev_type = ntvfs->ctx->dev_type;
}
/* we need to receive oplock break requests from the server */
smbcli_oplock_handler(p->transport, oplock_handler, p);
p->map_generic = share_bool_option(scfg, CIFS_MAP_GENERIC, CIFS_MAP_GENERIC_DEFAULT);
p->map_trans2 = share_bool_option(scfg, CIFS_MAP_TRANS2, CIFS_MAP_TRANS2_DEFAULT);
return NT_STATUS_OK;
}
static int ejs_cli_ssetup(MprVarHandle eid, int argc, MprVar **argv)
{
struct smbcli_transport *transport;
struct smbcli_session *session;
struct smb_composite_sesssetup setup;
struct cli_credentials *creds;
NTSTATUS status;
int result = -1;
/* Argument parsing */
if (argc < 1 || argc > 4) {
ejsSetErrorMsg(eid, "session_setup invalid arguments");
return -1;
}
if (!mprVarIsPtr(argv[0]->type)) {
ejsSetErrorMsg(eid, "first arg is not a connect handle");
return -1;
}
transport = argv[0]->ptr;
creds = cli_credentials_init(transport);
cli_credentials_set_conf(creds);
if (argc == 4) {
/* DOMAIN, USERNAME, PASSWORD form */
if (!mprVarIsString(argv[1]->type)) {
ejsSetErrorMsg(eid, "arg 1 must be a string");
goto done;
}
cli_credentials_set_domain(creds, argv[1]->string,
CRED_SPECIFIED);
if (!mprVarIsString(argv[2]->type)) {
ejsSetErrorMsg(eid, "arg 2 must be a string");
goto done;
}
cli_credentials_set_username(creds, argv[2]->string,
CRED_SPECIFIED);
if (!mprVarIsString(argv[3]->type)) {
ejsSetErrorMsg(eid, "arg 3 must be a string");
goto done;
}
cli_credentials_set_password(creds, argv[3]->string,
CRED_SPECIFIED);
} else if (argc == 3) {
/* USERNAME, PASSWORD form */
if (!mprVarIsString(argv[1]->type)) {
ejsSetErrorMsg(eid, "arg1 must be a string");
goto done;
}
cli_credentials_set_username(creds, argv[1]->string,
CRED_SPECIFIED);
if (!mprVarIsString(argv[2]->type)) {
ejsSetErrorMsg(eid, "arg2 must be a string");
goto done;
}
cli_credentials_set_password(creds, argv[2]->string,
CRED_SPECIFIED);
} else if (argc == 2) {
/* DOMAIN/USERNAME%PASSWORD form */
cli_credentials_parse_string(creds, argv[1]->string,
CRED_SPECIFIED);
} else {
/* Anonymous connection */
cli_credentials_set_anonymous(creds);
}
/* Do session setup */
session = smbcli_session_init(transport, transport, False);
if (!session) {
ejsSetErrorMsg(eid, "session init failed");
return -1;
}
setup.in.sesskey = transport->negotiate.sesskey;
setup.in.capabilities = transport->negotiate.capabilities;
setup.in.credentials = creds;
setup.in.workgroup = lp_workgroup();
status = smb_composite_sesssetup(session, &setup);
if (!NT_STATUS_IS_OK(status)) {
ejsSetErrorMsg(eid, "session_setup: %s", nt_errstr(status));
return -1;
}
session->vuid = setup.out.vuid;
/* Return a session object */
mpr_Return(eid, mprCreatePtrVar(session));
result = 0;
done:
talloc_free(creds);
return result;
}
/*
connect to a share - used when a tree_connect operation comes in.
*/
static NTSTATUS cvfs_connect(struct ntvfs_module_context *ntvfs,
struct ntvfs_request *req,
union smb_tcon* tcon)
{
NTSTATUS status;
struct cvfs_private *p;
const char *host, *user, *pass, *domain, *remote_share, *sharename;
struct share_config *scfg = ntvfs->ctx->config;
struct smb2_tree *tree;
struct cli_credentials *credentials;
bool machine_account;
struct smbcli_options options;
switch (tcon->generic.level) {
case RAW_TCON_TCON:
sharename = tcon->tcon.in.service;
break;
case RAW_TCON_TCONX:
sharename = tcon->tconx.in.path;
break;
case RAW_TCON_SMB2:
sharename = tcon->smb2.in.path;
break;
default:
return NT_STATUS_INVALID_LEVEL;
}
if (strncmp(sharename, "\\\\", 2) == 0) {
char *str = strchr(sharename+2, '\\');
if (str) {
sharename = str + 1;
}
}
/* Here we need to determine which server to connect to.
* For now we use parametric options, type cifs.
*/
host = share_string_option(scfg, SMB2_SERVER, NULL);
user = share_string_option(scfg, SMB2_USER, NULL);
pass = share_string_option(scfg, SMB2_PASSWORD, NULL);
domain = share_string_option(scfg, SMB2_DOMAIN, NULL);
remote_share = share_string_option(scfg, SMB2_SHARE, NULL);
if (!remote_share) {
remote_share = sharename;
}
machine_account = share_bool_option(scfg, SMB2_USE_MACHINE_ACCT, SMB2_USE_MACHINE_ACCT_DEFAULT);
p = talloc_zero(ntvfs, struct cvfs_private);
if (!p) {
return NT_STATUS_NO_MEMORY;
}
ntvfs->private_data = p;
if (!host) {
DEBUG(1,("CIFS backend: You must supply server\n"));
return NT_STATUS_INVALID_PARAMETER;
}
if (user && pass) {
DEBUG(5, ("CIFS backend: Using specified password\n"));
credentials = cli_credentials_init(p);
if (!credentials) {
return NT_STATUS_NO_MEMORY;
}
cli_credentials_set_conf(credentials, ntvfs->ctx->lp_ctx);
cli_credentials_set_username(credentials, user, CRED_SPECIFIED);
if (domain) {
cli_credentials_set_domain(credentials, domain, CRED_SPECIFIED);
}
cli_credentials_set_password(credentials, pass, CRED_SPECIFIED);
} else if (machine_account) {
DEBUG(5, ("CIFS backend: Using machine account\n"));
credentials = cli_credentials_init(p);
cli_credentials_set_conf(credentials, ntvfs->ctx->lp_ctx);
if (domain) {
cli_credentials_set_domain(credentials, domain, CRED_SPECIFIED);
}
status = cli_credentials_set_machine_account(credentials, ntvfs->ctx->lp_ctx);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
} else if (req->session_info->credentials) {
DEBUG(5, ("CIFS backend: Using delegated credentials\n"));
credentials = req->session_info->credentials;
} else {
DEBUG(1,("CIFS backend: NO delegated credentials found: You must supply server, user and password or the client must supply delegated credentials\n"));
return NT_STATUS_INVALID_PARAMETER;
}
lpcfg_smbcli_options(ntvfs->ctx->lp_ctx, &options);
status = smb2_connect(p, host,
lpcfg_parm_string_list(p, ntvfs->ctx->lp_ctx, NULL, "smb2", "ports", NULL),
remote_share,
lpcfg_resolve_context(ntvfs->ctx->lp_ctx),
credentials,
&tree,
ntvfs->ctx->event_ctx, &options,
lpcfg_socket_options(ntvfs->ctx->lp_ctx),
lpcfg_gensec_settings(p, ntvfs->ctx->lp_ctx));
NT_STATUS_NOT_OK_RETURN(status);
status = smb2_get_roothandle(tree, &p->roothandle);
NT_STATUS_NOT_OK_RETURN(status);
p->tree = tree;
p->transport = p->tree->session->transport;
p->ntvfs = ntvfs;
ntvfs->ctx->fs_type = talloc_strdup(ntvfs->ctx, "NTFS");
NT_STATUS_HAVE_NO_MEMORY(ntvfs->ctx->fs_type);
ntvfs->ctx->dev_type = talloc_strdup(ntvfs->ctx, "A:");
NT_STATUS_HAVE_NO_MEMORY(ntvfs->ctx->dev_type);
if (tcon->generic.level == RAW_TCON_TCONX) {
tcon->tconx.out.fs_type = ntvfs->ctx->fs_type;
tcon->tconx.out.dev_type = ntvfs->ctx->dev_type;
}
/* we need to receive oplock break requests from the server */
/* TODO: enable oplocks
smbcli_oplock_handler(p->transport, oplock_handler, p);
*/
return NT_STATUS_OK;
}
static NTSTATUS remote_op_bind(struct dcesrv_call_state *dce_call, const struct dcesrv_interface *iface, uint32_t if_version)
{
NTSTATUS status;
const struct ndr_interface_table *table;
struct dcesrv_remote_private *priv;
const char *binding = lpcfg_parm_string(dce_call->conn->dce_ctx->lp_ctx, NULL, "dcerpc_remote", "binding");
const char *user, *pass, *domain;
struct cli_credentials *credentials;
bool must_free_credentials = true;
bool machine_account;
struct dcerpc_binding *b;
struct composite_context *pipe_conn_req;
machine_account = lpcfg_parm_bool(dce_call->conn->dce_ctx->lp_ctx, NULL, "dcerpc_remote", "use_machine_account", false);
priv = talloc(dce_call->conn, struct dcesrv_remote_private);
if (!priv) {
return NT_STATUS_NO_MEMORY;
}
priv->c_pipe = NULL;
dce_call->context->private_data = priv;
if (!binding) {
DEBUG(0,("You must specify a DCE/RPC binding string\n"));
return NT_STATUS_INVALID_PARAMETER;
}
user = lpcfg_parm_string(dce_call->conn->dce_ctx->lp_ctx, NULL, "dcerpc_remote", "user");
pass = lpcfg_parm_string(dce_call->conn->dce_ctx->lp_ctx, NULL, "dcerpc_remote", "password");
domain = lpcfg_parm_string(dce_call->conn->dce_ctx->lp_ctx, NULL, "dceprc_remote", "domain");
table = ndr_table_by_syntax(&iface->syntax_id);
if (!table) {
dce_call->fault_code = DCERPC_FAULT_UNK_IF;
return NT_STATUS_NET_WRITE_FAULT;
}
if (user && pass) {
DEBUG(5, ("dcerpc_remote: RPC Proxy: Using specified account\n"));
credentials = cli_credentials_init(priv);
if (!credentials) {
return NT_STATUS_NO_MEMORY;
}
cli_credentials_set_conf(credentials, dce_call->conn->dce_ctx->lp_ctx);
cli_credentials_set_username(credentials, user, CRED_SPECIFIED);
if (domain) {
cli_credentials_set_domain(credentials, domain, CRED_SPECIFIED);
}
cli_credentials_set_password(credentials, pass, CRED_SPECIFIED);
} else if (machine_account) {
DEBUG(5, ("dcerpc_remote: RPC Proxy: Using machine account\n"));
credentials = cli_credentials_init(priv);
cli_credentials_set_conf(credentials, dce_call->conn->dce_ctx->lp_ctx);
if (domain) {
cli_credentials_set_domain(credentials, domain, CRED_SPECIFIED);
}
status = cli_credentials_set_machine_account(credentials, dce_call->conn->dce_ctx->lp_ctx);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
} else if (dce_call->conn->auth_state.session_info->credentials) {
DEBUG(5, ("dcerpc_remote: RPC Proxy: Using delegated credentials\n"));
credentials = dce_call->conn->auth_state.session_info->credentials;
must_free_credentials = false;
} else {
DEBUG(1,("dcerpc_remote: RPC Proxy: You must supply binding, user and password or have delegated credentials\n"));
return NT_STATUS_INVALID_PARAMETER;
}
/* parse binding string to the structure */
status = dcerpc_parse_binding(dce_call->context, binding, &b);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, ("Failed to parse dcerpc binding '%s'\n", binding));
return status;
}
/* If we already have a remote association group ID, then use that */
if (dce_call->context->assoc_group->proxied_id != 0) {
status = dcerpc_binding_set_assoc_group_id(b,
dce_call->context->assoc_group->proxied_id);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, ("dcerpc_binding_set_assoc_group_id() - %s'\n",
nt_errstr(status)));
return status;
}
}
status = dcerpc_binding_set_abstract_syntax(b, &iface->syntax_id);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, ("dcerpc_binding_set_abstract_syntax() - %s'\n",
nt_errstr(status)));
return status;
}
DEBUG(3, ("Using binding %s\n", dcerpc_binding_string(dce_call->context, b)));
pipe_conn_req = dcerpc_pipe_connect_b_send(dce_call->context, b, table,
credentials, dce_call->event_ctx, dce_call->conn->dce_ctx->lp_ctx);
status = dcerpc_pipe_connect_b_recv(pipe_conn_req, dce_call->context, &(priv->c_pipe));
if (must_free_credentials) {
talloc_free(credentials);
}
if (!NT_STATUS_IS_OK(status)) {
return status;
}
if (dce_call->context->assoc_group->proxied_id == 0) {
dce_call->context->assoc_group->proxied_id =
dcerpc_binding_get_assoc_group_id(priv->c_pipe->binding);
}
if (!NT_STATUS_IS_OK(status)) {
return status;
}
return NT_STATUS_OK;
}
NTSTATUS cli_credentials_update_all_keytabs(TALLOC_CTX *parent_ctx)
{
TALLOC_CTX *mem_ctx;
int ldb_ret;
struct ldb_context *ldb;
struct ldb_message **msgs;
const char *attrs[] = { NULL };
struct cli_credentials *creds;
const char *filter;
NTSTATUS status;
int i, ret;
mem_ctx = talloc_new(parent_ctx);
if (!mem_ctx) {
return NT_STATUS_NO_MEMORY;
}
/* Local secrets are stored in secrets.ldb */
ldb = secrets_db_connect(mem_ctx);
if (!ldb) {
DEBUG(1, ("Could not open secrets.ldb\n"));
talloc_free(mem_ctx);
return NT_STATUS_ACCESS_DENIED;
}
/* search for the secret record, but only of things we can
* actually update */
ldb_ret = gendb_search(ldb,
mem_ctx, NULL,
&msgs, attrs,
"(&(objectClass=kerberosSecret)(|(secret=*)(ntPwdHash=*)))");
if (ldb_ret == -1) {
DEBUG(1, ("Error looking for kerberos type secrets to push into a keytab:: %s", ldb_errstring(ldb)));
talloc_free(mem_ctx);
return NT_STATUS_INTERNAL_DB_CORRUPTION;
}
for (i=0; i < ldb_ret; i++) {
/* Make a credentials structure from it */
creds = cli_credentials_init(mem_ctx);
if (!creds) {
DEBUG(1, ("cli_credentials_init failed!"));
talloc_free(mem_ctx);
return NT_STATUS_NO_MEMORY;
}
cli_credentials_set_conf(creds);
filter = talloc_asprintf(mem_ctx, "dn=%s", ldb_dn_get_linearized(msgs[i]->dn));
status = cli_credentials_set_secrets(creds, NULL, filter);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(1, ("Failed to read secrets for keytab update for %s\n",
filter));
continue;
}
ret = cli_credentials_update_keytab(creds);
if (ret != 0) {
DEBUG(1, ("Failed to update keytab for %s\n",
filter));
continue;
}
}
return NT_STATUS_OK;
}
struct composite_context *wb_init_domain_send(TALLOC_CTX *mem_ctx,
struct wbsrv_service *service,
struct wb_dom_info *dom_info)
{
struct composite_context *result, *ctx;
struct init_domain_state *state;
result = composite_create(mem_ctx, service->task->event_ctx);
if (result == NULL) goto failed;
state = talloc_zero(result, struct init_domain_state);
if (state == NULL) goto failed;
state->ctx = result;
result->private_data = state;
state->service = service;
state->domain = talloc(state, struct wbsrv_domain);
if (state->domain == NULL) goto failed;
state->domain->info = talloc_reference(state->domain, dom_info);
if (state->domain->info == NULL) goto failed;
/* Caller should check, but to be safe: */
if (dom_info->num_dcs < 1) {
goto failed;
}
/* For now, we just pick the first. The next step will be to
* walk the entire list. Also need to fix finddcs() to return
* the entire list */
state->domain->dc_name = dom_info->dcs[0].name;
state->domain->dc_address = dom_info->dcs[0].address;
/* Create a credentials structure */
state->domain->schannel_creds = cli_credentials_init(state->domain);
if (state->domain->schannel_creds == NULL) goto failed;
cli_credentials_set_event_context(state->domain->schannel_creds, service->task->event_ctx);
cli_credentials_set_conf(state->domain->schannel_creds);
/* Connect the machine account to the credentials */
state->ctx->status =
cli_credentials_set_machine_account(state->domain->
schannel_creds);
if (!NT_STATUS_IS_OK(state->ctx->status)) goto failed;
state->domain->netlogon_binding = init_domain_binding(state, &dcerpc_table_netlogon);
state->domain->netlogon_pipe = NULL;
if ((!cli_credentials_is_anonymous(state->domain->schannel_creds)) &&
((lp_server_role() == ROLE_DOMAIN_MEMBER) &&
(dom_sid_equal(state->domain->info->sid,
state->service->primary_sid)))) {
state->domain->netlogon_binding->flags |= DCERPC_SCHANNEL;
/* For debugging, it can be a real pain if all the traffic is encrypted */
if (lp_winbind_sealed_pipes()) {
state->domain->netlogon_binding->flags |= (DCERPC_SIGN | DCERPC_SEAL );
} else {
state->domain->netlogon_binding->flags |= (DCERPC_SIGN);
}
}
/* No encryption on anonymous pipes */
ctx = dcerpc_pipe_connect_b_send(state, state->domain->netlogon_binding,
&dcerpc_table_netlogon,
state->domain->schannel_creds,
service->task->event_ctx);
if (composite_nomem(ctx, state->ctx)) {
goto failed;
}
composite_continue(state->ctx, ctx, init_domain_recv_netlogonpipe,
state);
return result;
failed:
talloc_free(result);
return NULL;
}
