Adding upstream version 2:4.20.0+dfsg.upstream/2%4.20.0+dfsg

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 614 insertions, 0 deletions

diff --git a/source3/utils/net_util.c b/source3/utils/net_util.c
new file mode 100644
index 0000000..f3b7755
--- /dev/null
+++ b/source3/utils/net_util.c
@@ -0,0 +1,614 @@
+/*
+ *  Unix SMB/CIFS implementation.
+ *  Helper routines for net
+ *  Copyright (C) Volker Lendecke 2006
+ *  Copyright (C) Kai Blin 2008
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#include "includes.h"
+#include "utils/net.h"
+#include "libsmb/namequery.h"
+#include "rpc_client/cli_pipe.h"
+#include "../librpc/gen_ndr/ndr_lsa_c.h"
+#include "rpc_client/cli_lsarpc.h"
+#include "../librpc/gen_ndr/ndr_dssetup_c.h"
+#include "secrets.h"
+#include "../libcli/security/security.h"
+#include "libsmb/libsmb.h"
+#include "lib/param/param.h"
+#include "auth/gensec/gensec.h"
+#include "libcli/auth/netlogon_creds_cli.h"
+#include "lib/cmdline/cmdline.h"
+
+NTSTATUS net_rpc_lookup_name(struct net_context *c,
+			     TALLOC_CTX *mem_ctx, struct cli_state *cli,
+			     const char *name, const char **ret_domain,
+			     const char **ret_name, struct dom_sid *ret_sid,
+			     enum lsa_SidType *ret_type)
+{
+	struct rpc_pipe_client *lsa_pipe = NULL;
+	struct policy_handle pol;
+	NTSTATUS status, result;
+	const char **dom_names;
+	struct dom_sid *sids;
+	enum lsa_SidType *types;
+	struct dcerpc_binding_handle *b;
+
+	ZERO_STRUCT(pol);
+
+	status = cli_rpc_pipe_open_noauth(cli, &ndr_table_lsarpc,
+					  &lsa_pipe);
+	if (!NT_STATUS_IS_OK(status)) {
+		d_fprintf(stderr, _("Could not initialise lsa pipe\n"));
+		return status;
+	}
+
+	b = lsa_pipe->binding_handle;
+
+	status = rpccli_lsa_open_policy(lsa_pipe, mem_ctx, false,
+					SEC_FLAG_MAXIMUM_ALLOWED,
+					&pol);
+	if (!NT_STATUS_IS_OK(status)) {
+		d_fprintf(stderr, "open_policy %s: %s\n", _("failed"),
+			  nt_errstr(status));
+		return status;
+	}
+
+	status = rpccli_lsa_lookup_names(lsa_pipe, mem_ctx, &pol, 1,
+					 &name, &dom_names, 1, &sids, &types);
+
+	if (!NT_STATUS_IS_OK(status)) {
+		/* This can happen easily, don't log an error */
+		goto done;
+	}
+
+	if (ret_domain != NULL) {
+		*ret_domain = dom_names[0];
+	}
+	if (ret_name != NULL) {
+		*ret_name = talloc_strdup(mem_ctx, name);
+	}
+	if (ret_sid != NULL) {
+		sid_copy(ret_sid, &sids[0]);
+	}
+	if (ret_type != NULL) {
+		*ret_type = types[0];
+	}
+
+ done:
+	if (is_valid_policy_hnd(&pol)) {
+		dcerpc_lsa_Close(b, mem_ctx, &pol, &result);
+	}
+	TALLOC_FREE(lsa_pipe);
+
+	return status;
+}
+
+/****************************************************************************
+ Connect to \\server\service.
+****************************************************************************/
+
+NTSTATUS connect_to_service(struct net_context *c,
+			    struct cli_state **cli_ctx,
+			    const struct sockaddr_storage *server_ss,
+			    const char *server_name,
+			    const char *service_name,
+			    const char *service_type)
+{
+	NTSTATUS nt_status;
+	int flags = 0;
+
+	if (strequal(service_type, "IPC")) {
+		flags |= CLI_FULL_CONNECTION_IPC;
+	}
+
+	nt_status = cli_full_connection_creds(cli_ctx, NULL, server_name,
+					server_ss, c->opt_port,
+					service_name, service_type,
+					c->creds,
+					flags);
+	if (!NT_STATUS_IS_OK(nt_status)) {
+		d_fprintf(stderr, _("Could not connect to server %s\n"),
+			  server_name);
+
+		/* Display a nicer message depending on the result */
+
+		if (NT_STATUS_V(nt_status) ==
+		    NT_STATUS_V(NT_STATUS_LOGON_FAILURE))
+			d_fprintf(stderr,
+				  _("The username or password was not "
+				    "correct.\n"));
+
+		if (NT_STATUS_V(nt_status) ==
+		    NT_STATUS_V(NT_STATUS_ACCOUNT_LOCKED_OUT))
+			d_fprintf(stderr, _("The account was locked out.\n"));
+
+		if (NT_STATUS_V(nt_status) ==
+		    NT_STATUS_V(NT_STATUS_ACCOUNT_DISABLED))
+			d_fprintf(stderr, _("The account was disabled.\n"));
+		return nt_status;
+	}
+
+	return nt_status;
+}
+
+/****************************************************************************
+ Connect to \\server\ipc$.
+****************************************************************************/
+
+NTSTATUS connect_to_ipc(struct net_context *c,
+			struct cli_state **cli_ctx,
+			const struct sockaddr_storage *server_ss,
+			const char *server_name)
+{
+	return connect_to_service(c, cli_ctx, server_ss, server_name, "IPC$",
+				  "IPC");
+}
+
+/****************************************************************************
+ Connect to \\server\ipc$ anonymously.
+****************************************************************************/
+
+NTSTATUS connect_to_ipc_anonymous(struct net_context *c,
+				struct cli_state **cli_ctx,
+				const struct sockaddr_storage *server_ss,
+				const char *server_name)
+{
+	NTSTATUS nt_status;
+	struct cli_credentials *anon_creds = NULL;
+
+	anon_creds = cli_credentials_init_anon(c);
+	if (anon_creds == NULL) {
+		DBG_ERR("cli_credentials_init_anon() failed\n");
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	nt_status = cli_full_connection_creds(cli_ctx, c->opt_requester_name,
+					server_name, server_ss, c->opt_port,
+					"IPC$", "IPC",
+					anon_creds,
+					CLI_FULL_CONNECTION_IPC);
+
+	if (NT_STATUS_IS_OK(nt_status)) {
+		return nt_status;
+	} else {
+		DEBUG(1,("Cannot connect to server (anonymously).  Error was %s\n", nt_errstr(nt_status)));
+		return nt_status;
+	}
+}
+
+/**
+ * Connect a server and open a given pipe
+ *
+ * @param cli_dst		A cli_state
+ * @param pipe			The pipe to open
+ * @param got_pipe		boolean that stores if we got a pipe
+ *
+ * @return Normal NTSTATUS return.
+ **/
+NTSTATUS connect_dst_pipe(struct net_context *c, struct cli_state **cli_dst,
+			  struct rpc_pipe_client **pp_pipe_hnd,
+			  const struct ndr_interface_table *table)
+{
+	NTSTATUS nt_status;
+	char *server_name = SMB_STRDUP("127.0.0.1");
+	struct cli_state *cli_tmp = NULL;
+	struct rpc_pipe_client *pipe_hnd = NULL;
+
+	if (server_name == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	if (c->opt_destination) {
+		SAFE_FREE(server_name);
+		if ((server_name = SMB_STRDUP(c->opt_destination)) == NULL) {
+			return NT_STATUS_NO_MEMORY;
+		}
+	}
+
+	/* make a connection to a named pipe */
+	nt_status = connect_to_ipc(c, &cli_tmp, NULL, server_name);
+	if (!NT_STATUS_IS_OK(nt_status)) {
+		SAFE_FREE(server_name);
+		return nt_status;
+	}
+
+	nt_status = cli_rpc_pipe_open_noauth(cli_tmp, table,
+					     &pipe_hnd);
+	if (!NT_STATUS_IS_OK(nt_status)) {
+		DEBUG(0, ("couldn't not initialize pipe\n"));
+		cli_shutdown(cli_tmp);
+		SAFE_FREE(server_name);
+		return nt_status;
+	}
+
+	*cli_dst = cli_tmp;
+	*pp_pipe_hnd = pipe_hnd;
+	SAFE_FREE(server_name);
+
+	return nt_status;
+}
+
+/****************************************************************************
+ Use the local machine account (krb) and password for this session.
+****************************************************************************/
+
+int net_use_krb_machine_account(struct net_context *c)
+{
+	char *user_name = NULL;
+
+	if (!secrets_init()) {
+		d_fprintf(stderr,_("ERROR: Unable to open secrets database\n"));
+		exit(1);
+	}
+
+	c->opt_password = secrets_fetch_machine_password(
+				c->opt_target_workgroup, NULL, NULL);
+	if (asprintf(&user_name, "%s$@%s", lp_netbios_name(), lp_realm()) == -1) {
+		return -1;
+	}
+	c->opt_user_name = user_name;
+	c->opt_user_specified = true;
+
+	cli_credentials_set_machine_account(c->creds, c->lp_ctx);
+	return 0;
+}
+
+bool net_find_server(struct net_context *c,
+			const char *domain,
+			unsigned flags,
+			struct sockaddr_storage *server_ss,
+			char **server_name)
+{
+	const char *d = domain ? domain : c->opt_target_workgroup;
+
+	if (c->opt_host) {
+		*server_name = SMB_STRDUP(c->opt_host);
+	}
+
+	if (c->opt_have_ip) {
+		*server_ss = c->opt_dest_ip;
+		if (!*server_name) {
+			char addr[INET6_ADDRSTRLEN];
+			print_sockaddr(addr, sizeof(addr), &c->opt_dest_ip);
+			*server_name = SMB_STRDUP(addr);
+		}
+	} else if (*server_name) {
+		/* resolve the IP address */
+		if (!resolve_name(*server_name, server_ss, 0x20, false))  {
+			DEBUG(1,("Unable to resolve server name\n"));
+			return false;
+		}
+	} else if (flags & NET_FLAGS_PDC) {
+		fstring dc_name;
+		struct sockaddr_storage pdc_ss;
+
+		if (!get_pdc_ip(d, &pdc_ss)) {
+			DEBUG(1,("Unable to resolve PDC server address\n"));
+			return false;
+		}
+
+		if (is_zero_addr(&pdc_ss)) {
+			return false;
+		}
+
+		if (!name_status_find(d, 0x1b, 0x20, &pdc_ss, dc_name)) {
+			return false;
+		}
+
+		*server_name = SMB_STRDUP(dc_name);
+		*server_ss = pdc_ss;
+	} else if (flags & NET_FLAGS_DMB) {
+		struct sockaddr_storage msbrow_ss;
+		char addr[INET6_ADDRSTRLEN];
+
+		/*  if (!resolve_name(MSBROWSE, &msbrow_ip, 1, false)) */
+		if (!resolve_name(d, &msbrow_ss, 0x1B, false))  {
+			DEBUG(1,("Unable to resolve domain browser via name lookup\n"));
+			return false;
+		}
+		*server_ss = msbrow_ss;
+		print_sockaddr(addr, sizeof(addr), server_ss);
+		*server_name = SMB_STRDUP(addr);
+	} else if (flags & NET_FLAGS_MASTER) {
+		struct sockaddr_storage brow_ss;
+		char addr[INET6_ADDRSTRLEN];
+		if (!resolve_name(d, &brow_ss, 0x1D, false))  {
+				/* go looking for workgroups */
+			DEBUG(1,("Unable to resolve master browser via name lookup\n"));
+			return false;
+		}
+		*server_ss = brow_ss;
+		print_sockaddr(addr, sizeof(addr), server_ss);
+		*server_name = SMB_STRDUP(addr);
+	} else if (!(flags & NET_FLAGS_LOCALHOST_DEFAULT_INSANE)) {
+		if (!interpret_string_addr(server_ss,
+					"127.0.0.1", AI_NUMERICHOST)) {
+			DEBUG(1,("Unable to resolve 127.0.0.1\n"));
+			return false;
+		}
+		*server_name = SMB_STRDUP("127.0.0.1");
+	}
+
+	if (!*server_name) {
+		DEBUG(1,("no server to connect to\n"));
+		return false;
+	}
+
+	return true;
+}
+
+bool net_find_pdc(struct sockaddr_storage *server_ss,
+		fstring server_name,
+		const char *domain_name)
+{
+	if (!get_pdc_ip(domain_name, server_ss)) {
+		return false;
+	}
+	if (is_zero_addr(server_ss)) {
+		return false;
+	}
+
+	if (!name_status_find(domain_name, 0x1b, 0x20, server_ss, server_name)) {
+		return false;
+	}
+
+	return true;
+}
+
+NTSTATUS net_make_ipc_connection(struct net_context *c, unsigned flags,
+				 struct cli_state **pcli)
+{
+	return net_make_ipc_connection_ex(c, c->opt_workgroup, NULL, NULL, flags, pcli);
+}
+
+NTSTATUS net_make_ipc_connection_ex(struct net_context *c ,const char *domain,
+				    const char *server,
+				    const struct sockaddr_storage *pss,
+				    unsigned flags, struct cli_state **pcli)
+{
+	char *server_name = NULL;
+	struct sockaddr_storage server_ss;
+	struct cli_state *cli = NULL;
+	NTSTATUS nt_status;
+
+	if ( !server || !pss ) {
+		if (!net_find_server(c, domain, flags, &server_ss,
+				     &server_name)) {
+			d_fprintf(stderr, _("Unable to find a suitable server "
+				"for domain %s\n"), domain);
+			nt_status = NT_STATUS_UNSUCCESSFUL;
+			goto done;
+		}
+	} else {
+		server_name = SMB_STRDUP( server );
+		server_ss = *pss;
+	}
+
+	if (flags & NET_FLAGS_ANONYMOUS) {
+		nt_status = connect_to_ipc_anonymous(c, &cli, &server_ss,
+						     server_name);
+	} else {
+		nt_status = connect_to_ipc(c, &cli, &server_ss,
+					   server_name);
+	}
+
+	/* store the server in the affinity cache if it was a PDC */
+
+	if ( (flags & NET_FLAGS_PDC) && NT_STATUS_IS_OK(nt_status) )
+		saf_store(cli->server_domain, server_name);
+
+	SAFE_FREE(server_name);
+	if (!NT_STATUS_IS_OK(nt_status)) {
+		d_fprintf(stderr, _("Connection failed: %s\n"),
+			  nt_errstr(nt_status));
+		cli = NULL;
+	} else if (c->opt_request_timeout) {
+		cli_set_timeout(cli, c->opt_request_timeout * 1000);
+	}
+
+done:
+	if (pcli != NULL) {
+		*pcli = cli;
+	}
+	return nt_status;
+}
+
+/****************************************************************************
+****************************************************************************/
+
+/* TODO FIXME: Pass cli_creds via net_context and get rid of this function. */
+const char *net_prompt_pass(struct net_context *c, const char *user)
+{
+	struct cli_credentials *creds = samba_cmdline_get_creds();
+
+	if (c->opt_password == NULL) {
+		c->opt_password = cli_credentials_get_password(creds);
+	}
+
+	return c->opt_password;
+}
+
+int net_run_function(struct net_context *c, int argc, const char **argv,
+		      const char *whoami, struct functable *table)
+{
+	int i;
+
+	if (argc != 0) {
+		for (i=0; table[i].funcname != NULL; i++) {
+			if (strcasecmp_m(argv[0], table[i].funcname) == 0)
+				return table[i].fn(c, argc-1, argv+1);
+		}
+	}
+
+	if (c->display_usage == false) {
+		d_fprintf(stderr, _("Invalid command: %s %s\n"), whoami,
+			  (argc > 0)?argv[0]:"");
+	}
+	d_printf(_("Usage:\n"));
+	for (i=0; table[i].funcname != NULL; i++) {
+		if(c->display_usage == false)
+			d_printf("%s %-15s %s\n", whoami, table[i].funcname,
+				 _(table[i].description));
+		else
+			d_printf("%s\n", _(table[i].usage));
+	}
+
+	return c->display_usage?0:-1;
+}
+
+void net_display_usage_from_functable(struct functable *table)
+{
+	int i;
+	for (i=0; table[i].funcname != NULL; i++) {
+		d_printf("%s\n", _(table[i].usage));
+	}
+}
+
+void net_warn_member_options(void)
+{
+	TALLOC_CTX *frame = talloc_stackframe();
+	struct loadparm_context *lp_ctx = NULL;
+
+	lp_ctx = loadparm_init_s3(frame, loadparm_s3_helpers());
+	if (lp_ctx != NULL) {
+		netlogon_creds_cli_warn_options(lp_ctx);
+	}
+
+	TALLOC_FREE(frame);
+}
+
+const char *net_share_type_str(int num_type)
+{
+	switch(num_type) {
+		case 0: return _("Disk");
+		case 1: return _("Print");
+		case 2: return _("Dev");
+		case 3: return _("IPC");
+		default: return _("Unknown");
+	}
+}
+
+static NTSTATUS net_scan_dc_noad(struct net_context *c,
+				 struct cli_state *cli,
+				 struct net_dc_info *dc_info)
+{
+	TALLOC_CTX *mem_ctx = talloc_tos();
+	struct rpc_pipe_client *pipe_hnd = NULL;
+	struct dcerpc_binding_handle *b;
+	NTSTATUS status, result;
+	struct policy_handle pol;
+	union lsa_PolicyInformation *info;
+
+	ZERO_STRUCTP(dc_info);
+	ZERO_STRUCT(pol);
+
+	status = cli_rpc_pipe_open_noauth(cli, &ndr_table_lsarpc,
+					  &pipe_hnd);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	b = pipe_hnd->binding_handle;
+
+	status = dcerpc_lsa_open_policy(b, mem_ctx,
+					false,
+					SEC_FLAG_MAXIMUM_ALLOWED,
+					&pol,
+					&result);
+	if (!NT_STATUS_IS_OK(status)) {
+		goto done;
+	}
+	if (!NT_STATUS_IS_OK(result)) {
+		status = result;
+		goto done;
+	}
+
+	status = dcerpc_lsa_QueryInfoPolicy(b, mem_ctx,
+					    &pol,
+					    LSA_POLICY_INFO_ACCOUNT_DOMAIN,
+					    &info,
+					    &result);
+	if (!NT_STATUS_IS_OK(status)) {
+		goto done;
+	}
+	if (!NT_STATUS_IS_OK(result)) {
+		status = result;
+		goto done;
+	}
+
+	dc_info->netbios_domain_name = talloc_strdup(mem_ctx, info->account_domain.name.string);
+	if (dc_info->netbios_domain_name == NULL) {
+		status = NT_STATUS_NO_MEMORY;
+		goto done;
+	}
+
+ done:
+	if (is_valid_policy_hnd(&pol)) {
+		dcerpc_lsa_Close(b, mem_ctx, &pol, &result);
+	}
+
+	TALLOC_FREE(pipe_hnd);
+
+	return status;
+}
+
+NTSTATUS net_scan_dc(struct net_context *c,
+		     struct cli_state *cli,
+		     struct net_dc_info *dc_info)
+{
+	TALLOC_CTX *mem_ctx = talloc_tos();
+	struct rpc_pipe_client *dssetup_pipe = NULL;
+	struct dcerpc_binding_handle *dssetup_handle = NULL;
+	union dssetup_DsRoleInfo info;
+	NTSTATUS status;
+	WERROR werr;
+
+	ZERO_STRUCTP(dc_info);
+
+	status = cli_rpc_pipe_open_noauth(cli, &ndr_table_dssetup,
+					  &dssetup_pipe);
+        if (!NT_STATUS_IS_OK(status)) {
+		DEBUG(10,("net_scan_dc: failed to open dssetup pipe with %s, "
+			"retrying with lsa pipe\n", nt_errstr(status)));
+		return net_scan_dc_noad(c, cli, dc_info);
+	}
+	dssetup_handle = dssetup_pipe->binding_handle;
+
+	status = dcerpc_dssetup_DsRoleGetPrimaryDomainInformation(dssetup_handle, mem_ctx,
+								  DS_ROLE_BASIC_INFORMATION,
+								  &info,
+								  &werr);
+	TALLOC_FREE(dssetup_pipe);
+
+	if (NT_STATUS_IS_OK(status)) {
+		status = werror_to_ntstatus(werr);
+	}
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	dc_info->is_dc	= (info.basic.role & (DS_ROLE_PRIMARY_DC|DS_ROLE_BACKUP_DC));
+	dc_info->is_pdc	= (info.basic.role & DS_ROLE_PRIMARY_DC);
+	dc_info->is_ad	= (info.basic.flags & DS_ROLE_PRIMARY_DS_RUNNING);
+	dc_info->is_mixed_mode = (info.basic.flags & DS_ROLE_PRIMARY_DS_MIXED_MODE);
+	dc_info->netbios_domain_name = talloc_strdup(mem_ctx, info.basic.domain);
+	dc_info->dns_domain_name = talloc_strdup(mem_ctx, info.basic.dns_domain);
+	dc_info->forest_name = talloc_strdup(mem_ctx, info.basic.forest);
+
+	return NT_STATUS_OK;
+}