2 Unix SMB/CIFS implementation.
3 client connect/disconnect routines
4 Copyright (C) Andrew Tridgell 1994-1998
5 Copyright (C) Gerald (Jerry) Carter 2004
6 Copyright (C) Jeremy Allison 2007-2009
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>.
23 #include "libsmb/libsmb.h"
24 #include "libsmb/clirap.h"
27 #include "libsmb/nmblib.h"
28 #include "../libcli/smb/smbXcli_base.h"
29 #include "auth/credentials/credentials.h"
31 /********************************************************************
34 DFS paths are *always* of the form \server\share\<pathname> (the \ characters
35 are not C escaped here).
37 - but if we're using POSIX paths then <pathname> may contain
38 '/' separators, not '\\' separators. So cope with '\\' or '/'
39 as a separator when looking at the pathname part.... JRA.
40 ********************************************************************/
42 /********************************************************************
43 Ensure a connection is encrypted.
44 ********************************************************************/
46 NTSTATUS cli_cm_force_encryption_creds(struct cli_state *c,
47 struct cli_credentials *creds,
48 const char *sharename)
50 uint16_t major, minor;
51 uint32_t caplow, caphigh;
54 if (smbXcli_conn_protocol(c->conn) >= PROTOCOL_SMB2_02) {
55 status = smb2cli_session_encryption_on(c->smb2.session);
56 if (NT_STATUS_EQUAL(status,NT_STATUS_NOT_SUPPORTED)) {
57 d_printf("Encryption required and "
58 "server doesn't support "
59 "SMB3 encryption - failing connect\n");
60 } else if (!NT_STATUS_IS_OK(status)) {
61 d_printf("Encryption required and "
62 "setup failed with error %s.\n",
68 if (!SERVER_HAS_UNIX_CIFS(c)) {
69 d_printf("Encryption required and "
70 "server that doesn't support "
71 "UNIX extensions - failing connect\n");
72 return NT_STATUS_NOT_SUPPORTED;
75 status = cli_unix_extensions_version(c, &major, &minor, &caplow,
77 if (!NT_STATUS_IS_OK(status)) {
78 d_printf("Encryption required and "
79 "can't get UNIX CIFS extensions "
80 "version from server.\n");
81 return NT_STATUS_UNKNOWN_REVISION;
84 if (!(caplow & CIFS_UNIX_TRANSPORT_ENCRYPTION_CAP)) {
85 d_printf("Encryption required and "
86 "share %s doesn't support "
87 "encryption.\n", sharename);
88 return NT_STATUS_UNSUPPORTED_COMPRESSION;
91 status = cli_smb1_setup_encryption(c, creds);
92 if (!NT_STATUS_IS_OK(status)) {
93 d_printf("Encryption required and "
94 "setup failed with error %s.\n",
102 NTSTATUS cli_cm_force_encryption(struct cli_state *c,
103 const char *username,
104 const char *password,
106 const char *sharename)
108 struct cli_credentials *creds = NULL;
111 creds = cli_session_creds_init(c,
114 NULL, /* default realm */
117 c->fallback_after_kerberos,
121 return NT_STATUS_NO_MEMORY;
124 status = cli_cm_force_encryption_creds(c, creds, sharename);
125 /* gensec currently references the creds so we can't free them here */
126 talloc_unlink(c, creds);
130 /********************************************************************
131 Return a connection to a server.
132 ********************************************************************/
134 static NTSTATUS do_connect(TALLOC_CTX *ctx,
136 const struct sockaddr_storage *dest_ss,
138 const struct user_auth_info *auth_info,
144 struct cli_state **pcli)
146 struct cli_state *c = NULL;
149 char *newserver, *newshare;
152 enum protocol_types protocol = PROTOCOL_NONE;
153 int signing_state = get_cmdline_auth_info_signing_state(auth_info);
154 struct cli_credentials *creds = NULL;
157 signing_state = SMB_SIGNING_REQUIRED;
160 /* make a copy so we don't modify the global string 'service' */
161 servicename = talloc_strdup(ctx,share);
163 return NT_STATUS_NO_MEMORY;
165 sharename = servicename;
166 if (*sharename == '\\') {
168 if (server == NULL) {
171 sharename = strchr_m(sharename,'\\');
173 return NT_STATUS_NO_MEMORY;
178 if (server == NULL) {
179 return NT_STATUS_INVALID_PARAMETER;
182 if (get_cmdline_auth_info_use_kerberos(auth_info)) {
183 flags |= CLI_FULL_CONNECTION_USE_KERBEROS;
185 if (get_cmdline_auth_info_fallback_after_kerberos(auth_info)) {
186 flags |= CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS;
188 if (get_cmdline_auth_info_use_ccache(auth_info)) {
189 flags |= CLI_FULL_CONNECTION_USE_CCACHE;
191 if (get_cmdline_auth_info_use_pw_nt_hash(auth_info)) {
192 flags |= CLI_FULL_CONNECTION_USE_NT_HASH;
195 status = cli_connect_nb(
196 server, dest_ss, port, name_type, NULL,
200 if (!NT_STATUS_IS_OK(status)) {
201 if (NT_STATUS_EQUAL(status, NT_STATUS_NOT_SUPPORTED)) {
202 DBG_ERR("NetBIOS support disabled, unable to connect");
205 DBG_WARNING("Connection to %s failed (Error %s)\n",
211 if (max_protocol == 0) {
212 max_protocol = PROTOCOL_LATEST;
214 DEBUG(4,(" session request ok\n"));
216 status = smbXcli_negprot(c->conn, c->timeout,
217 lp_client_min_protocol(),
220 if (!NT_STATUS_IS_OK(status)) {
221 d_printf("protocol negotiation failed: %s\n",
226 protocol = smbXcli_conn_protocol(c->conn);
227 DEBUG(4,(" negotiated dialect[%s] against server[%s]\n",
228 smb_protocol_types_string(protocol),
229 smbXcli_conn_remote_name(c->conn)));
231 if (protocol >= PROTOCOL_SMB2_02) {
232 /* Ensure we ask for some initial credits. */
233 smb2cli_conn_set_max_credits(c->conn, DEFAULT_SMB2_MAX_CREDITS);
236 creds = get_cmdline_auth_info_creds(auth_info);
238 status = cli_session_setup_creds(c, creds);
239 if (!NT_STATUS_IS_OK(status)) {
240 /* If a password was not supplied then
241 * try again with a null username. */
242 if (force_encrypt || smbXcli_conn_signing_mandatory(c->conn) ||
243 cli_credentials_authentication_requested(creds) ||
244 cli_credentials_is_anonymous(creds) ||
245 !NT_STATUS_IS_OK(status = cli_session_setup_anon(c)))
247 d_printf("session setup failed: %s\n",
249 if (NT_STATUS_EQUAL(status,
250 NT_STATUS_MORE_PROCESSING_REQUIRED))
251 d_printf("did you forget to run kinit?\n");
255 d_printf("Anonymous login successful\n");
258 if (!NT_STATUS_IS_OK(status)) {
259 DEBUG(10,("cli_init_creds() failed: %s\n", nt_errstr(status)));
264 if ( show_sessetup ) {
265 if (*c->server_domain) {
266 DEBUG(0,("Domain=[%s] OS=[%s] Server=[%s]\n",
267 c->server_domain,c->server_os,c->server_type));
268 } else if (*c->server_os || *c->server_type) {
269 DEBUG(0,("OS=[%s] Server=[%s]\n",
270 c->server_os,c->server_type));
273 DEBUG(4,(" session setup ok\n"));
275 /* here's the fun part....to support 'msdfs proxy' shares
276 (on Samba or windows) we have to issues a TRANS_GET_DFS_REFERRAL
277 here before trying to connect to the original share.
278 cli_check_msdfs_proxy() will fail if it is a normal share. */
280 if (smbXcli_conn_dfs_supported(c->conn) &&
281 cli_check_msdfs_proxy(ctx, c, sharename,
282 &newserver, &newshare,
283 force_encrypt, creds)) {
285 return do_connect(ctx, newserver, NULL,
286 newshare, auth_info, false,
287 force_encrypt, max_protocol,
288 port, name_type, pcli);
291 /* must be a normal share */
293 status = cli_tree_connect_creds(c, sharename, "?????", creds);
294 if (!NT_STATUS_IS_OK(status)) {
295 d_printf("tree connect failed: %s\n", nt_errstr(status));
301 status = cli_cm_force_encryption_creds(c,
304 if (!NT_STATUS_IS_OK(status)) {
310 DEBUG(4,(" tconx ok\n"));
315 /****************************************************************************
316 ****************************************************************************/
318 static void cli_set_mntpoint(struct cli_state *cli, const char *mnt)
320 TALLOC_CTX *frame = talloc_stackframe();
321 char *name = clean_name(frame, mnt);
326 TALLOC_FREE(cli->dfs_mountpoint);
327 cli->dfs_mountpoint = talloc_strdup(cli, name);
331 /********************************************************************
332 Add a new connection to the list.
333 referring_cli == NULL means a new initial connection.
334 ********************************************************************/
336 static NTSTATUS cli_cm_connect(TALLOC_CTX *ctx,
337 struct cli_state *referring_cli,
339 const struct sockaddr_storage *dest_ss,
341 const struct user_auth_info *auth_info,
346 struct cli_state **pcli)
348 struct cli_state *cli;
351 status = do_connect(ctx, server, dest_ss, share,
353 show_hdr, force_encrypt, max_protocol,
354 port, name_type, &cli);
356 if (!NT_STATUS_IS_OK(status)) {
360 /* Enter into the list. */
362 DLIST_ADD_END(referring_cli, cli);
365 if (referring_cli && referring_cli->requested_posix_capabilities) {
366 uint16_t major, minor;
367 uint32_t caplow, caphigh;
368 status = cli_unix_extensions_version(cli, &major, &minor,
370 if (NT_STATUS_IS_OK(status)) {
371 cli_set_unix_extensions_capabilities(cli,
381 /********************************************************************
382 Return a connection to a server on a particular share.
383 ********************************************************************/
385 static struct cli_state *cli_cm_find(struct cli_state *cli,
395 /* Search to the start of the list. */
396 for (p = cli; p; p = DLIST_PREV(p)) {
397 const char *remote_name =
398 smbXcli_conn_remote_name(p->conn);
400 if (strequal(server, remote_name) &&
401 strequal(share,p->share)) {
406 /* Search to the end of the list. */
407 for (p = cli->next; p; p = p->next) {
408 const char *remote_name =
409 smbXcli_conn_remote_name(p->conn);
411 if (strequal(server, remote_name) &&
412 strequal(share,p->share)) {
420 /****************************************************************************
421 Open a client connection to a \\server\share.
422 ****************************************************************************/
424 NTSTATUS cli_cm_open(TALLOC_CTX *ctx,
425 struct cli_state *referring_cli,
428 const struct user_auth_info *auth_info,
433 struct cli_state **pcli)
435 /* Try to reuse an existing connection in this list. */
436 struct cli_state *c = cli_cm_find(referring_cli, server, share);
444 if (auth_info == NULL) {
445 /* Can't do a new connection
446 * without auth info. */
447 d_printf("cli_cm_open() Unable to open connection [\\%s\\%s] "
448 "without auth info\n",
450 return NT_STATUS_INVALID_PARAMETER;
453 status = cli_cm_connect(ctx,
464 if (!NT_STATUS_IS_OK(status)) {
471 /****************************************************************************
472 ****************************************************************************/
474 void cli_cm_display(struct cli_state *cli)
478 for (i=0; cli; cli = cli->next,i++ ) {
479 d_printf("%d:\tserver=%s, share=%s\n",
480 i, smbXcli_conn_remote_name(cli->conn), cli->share);
484 /****************************************************************************
485 ****************************************************************************/
487 /****************************************************************************
488 ****************************************************************************/
491 void cli_cm_set_credentials(struct user_auth_info *auth_info)
493 SAFE_FREE(cm_creds.username);
494 cm_creds.username = SMB_STRDUP(get_cmdline_auth_info_username(
497 if (get_cmdline_auth_info_got_pass(auth_info)) {
498 cm_set_password(get_cmdline_auth_info_password(auth_info));
501 cm_creds.use_kerberos = get_cmdline_auth_info_use_kerberos(auth_info);
502 cm_creds.fallback_after_kerberos = false;
503 cm_creds.signing_state = get_cmdline_auth_info_signing_state(auth_info);
507 /**********************************************************************
508 split a dfs path into the server, share name, and extrapath components
509 **********************************************************************/
511 static bool split_dfs_path(TALLOC_CTX *ctx,
512 const char *nodepath,
522 *pp_extrapath = NULL;
524 path = talloc_strdup(ctx, nodepath);
529 if ( path[0] != '\\' ) {
533 p = strchr_m( path + 1, '\\' );
541 /* Look for any extra/deep path */
542 q = strchr_m(p, '\\');
546 *pp_extrapath = talloc_strdup(ctx, q);
548 *pp_extrapath = talloc_strdup(ctx, "");
550 if (*pp_extrapath == NULL) {
554 *pp_share = talloc_strdup(ctx, p);
555 if (*pp_share == NULL) {
559 *pp_server = talloc_strdup(ctx, &path[1]);
560 if (*pp_server == NULL) {
568 TALLOC_FREE(*pp_share);
569 TALLOC_FREE(*pp_extrapath);
574 /****************************************************************************
575 Return the original path truncated at the directory component before
576 the first wildcard character. Trust the caller to provide a NULL
578 ****************************************************************************/
580 static char *clean_path(TALLOC_CTX *ctx, const char *path)
586 /* No absolute paths. */
587 while (IS_DIRECTORY_SEP(*path)) {
591 path_out = talloc_strdup(ctx, path);
596 p1 = strchr_m(path_out, '*');
597 p2 = strchr_m(path_out, '?');
609 /* Now go back to the start of this component. */
610 p1 = strrchr_m(path_out, '/');
611 p2 = strrchr_m(path_out, '\\');
618 /* Strip any trailing separator */
620 len = strlen(path_out);
621 if ( (len > 0) && IS_DIRECTORY_SEP(path_out[len-1])) {
622 path_out[len-1] = '\0';
628 /****************************************************************************
629 ****************************************************************************/
631 static char *cli_dfs_make_full_path(TALLOC_CTX *ctx,
632 struct cli_state *cli,
635 char path_sep = '\\';
637 /* Ensure the extrapath doesn't start with a separator. */
638 while (IS_DIRECTORY_SEP(*dir)) {
642 if (cli->requested_posix_capabilities & CIFS_UNIX_POSIX_PATHNAMES_CAP) {
645 return talloc_asprintf(ctx, "%c%s%c%s%c%s",
647 smbXcli_conn_remote_name(cli->conn),
654 /********************************************************************
655 check for dfs referral
656 ********************************************************************/
658 static bool cli_dfs_check_error(struct cli_state *cli, NTSTATUS expected,
661 /* only deal with DS when we negotiated NT_STATUS codes and UNICODE */
663 if (!(smbXcli_conn_use_unicode(cli->conn))) {
666 if (!(smb1cli_conn_capabilities(cli->conn) & CAP_STATUS32)) {
669 if (NT_STATUS_EQUAL(status, expected)) {
675 /********************************************************************
676 Get the dfs referral link.
677 ********************************************************************/
679 NTSTATUS cli_dfs_get_referral_ex(TALLOC_CTX *ctx,
680 struct cli_state *cli,
682 uint16_t max_referral_level,
683 struct client_dfs_referral **refs,
687 unsigned int param_len = 0;
688 uint16_t recv_flags2;
689 uint8_t *param = NULL;
690 uint8_t *rdata = NULL;
693 smb_ucs2_t *path_ucs;
694 char *consumed_path = NULL;
695 uint16_t consumed_ucs;
696 uint16_t num_referrals;
697 struct client_dfs_referral *referrals = NULL;
699 TALLOC_CTX *frame = talloc_stackframe();
704 param = talloc_array(talloc_tos(), uint8_t, 2);
706 status = NT_STATUS_NO_MEMORY;
709 SSVAL(param, 0, max_referral_level);
711 param = trans2_bytes_push_str(param, smbXcli_conn_use_unicode(cli->conn),
712 path, strlen(path)+1,
715 status = NT_STATUS_NO_MEMORY;
718 param_len = talloc_get_size(param);
719 path_ucs = (smb_ucs2_t *)¶m[2];
721 if (smbXcli_conn_protocol(cli->conn) >= PROTOCOL_SMB2_02) {
722 DATA_BLOB in_input_buffer;
723 DATA_BLOB in_output_buffer = data_blob_null;
724 DATA_BLOB out_input_buffer = data_blob_null;
725 DATA_BLOB out_output_buffer = data_blob_null;
727 in_input_buffer.data = param;
728 in_input_buffer.length = param_len;
730 status = smb2cli_ioctl(cli->conn,
734 UINT64_MAX, /* in_fid_persistent */
735 UINT64_MAX, /* in_fid_volatile */
736 FSCTL_DFS_GET_REFERRALS,
737 0, /* in_max_input_length */
739 CLI_BUFFER_SIZE, /* in_max_output_length */
741 SMB2_IOCTL_FLAG_IS_FSCTL,
745 if (!NT_STATUS_IS_OK(status)) {
749 if (out_output_buffer.length < 4) {
750 status = NT_STATUS_INVALID_NETWORK_RESPONSE;
754 recv_flags2 = FLAGS2_UNICODE_STRINGS;
755 rdata = out_output_buffer.data;
756 endp = (char *)rdata + out_output_buffer.length;
758 unsigned int data_len = 0;
761 SSVAL(setup, 0, TRANSACT2_GET_DFS_REFERRAL);
763 status = cli_trans(talloc_tos(), cli, SMBtrans2,
767 NULL, 0, CLI_BUFFER_SIZE,
769 NULL, 0, NULL, /* rsetup */
771 &rdata, 4, &data_len);
772 if (!NT_STATUS_IS_OK(status)) {
776 endp = (char *)rdata + data_len;
779 consumed_ucs = SVAL(rdata, 0);
780 num_referrals = SVAL(rdata, 2);
782 /* consumed_ucs is the number of bytes
783 * of the UCS2 path consumed not counting any
784 * terminating null. We need to convert
785 * back to unix charset and count again
786 * to get the number of bytes consumed from
787 * the incoming path. */
790 if (pull_string_talloc(talloc_tos(),
798 status = map_nt_error_from_unix(errno);
800 status = NT_STATUS_INVALID_NETWORK_RESPONSE;
804 if (consumed_path == NULL) {
805 status = map_nt_error_from_unix(errno);
808 *consumed = strlen(consumed_path);
810 if (num_referrals != 0) {
811 uint16_t ref_version;
814 uint16_t node_offset;
816 referrals = talloc_array(ctx, struct client_dfs_referral,
820 status = NT_STATUS_NO_MEMORY;
823 /* start at the referrals array */
826 for (i=0; i<num_referrals && p < endp; i++) {
830 ref_version = SVAL(p, 0);
831 ref_size = SVAL(p, 2);
832 node_offset = SVAL(p, 16);
834 if (ref_version != 3) {
839 referrals[i].proximity = SVAL(p, 8);
840 referrals[i].ttl = SVAL(p, 10);
842 if (p + node_offset > endp) {
843 status = NT_STATUS_INVALID_NETWORK_RESPONSE;
846 clistr_pull_talloc(referrals,
849 &referrals[i].dfspath,
851 PTR_DIFF(endp, p+node_offset),
852 STR_TERMINATE|STR_UNICODE);
854 if (!referrals[i].dfspath) {
855 status = map_nt_error_from_unix(errno);
860 if (i < num_referrals) {
861 status = NT_STATUS_INVALID_NETWORK_RESPONSE;
866 *num_refs = num_referrals;
875 NTSTATUS cli_dfs_get_referral(TALLOC_CTX *ctx,
876 struct cli_state *cli,
878 struct client_dfs_referral **refs,
882 return cli_dfs_get_referral_ex(ctx,
886 refs, /* Max referral level we want */
891 /********************************************************************
892 ********************************************************************/
893 struct cli_dfs_path_split {
899 NTSTATUS cli_resolve_path(TALLOC_CTX *ctx,
901 const struct user_auth_info *dfs_auth_info,
902 struct cli_state *rootcli,
904 struct cli_state **targetcli,
905 char **pp_targetpath)
907 struct client_dfs_referral *refs = NULL;
910 struct cli_state *cli_ipc = NULL;
911 char *dfs_path = NULL;
912 char *cleanpath = NULL;
913 char *extrapath = NULL;
915 struct cli_state *newcli = NULL;
916 struct cli_state *ccli = NULL;
918 char *newpath = NULL;
919 char *newmount = NULL;
921 SMB_STRUCT_STAT sbuf;
924 struct cli_credentials *dfs_creds = NULL;
925 bool force_encryption = true;
926 struct smbXcli_tcon *root_tcon = NULL;
927 struct smbXcli_tcon *target_tcon = NULL;
928 struct cli_dfs_path_split *dfs_refs = NULL;
930 if ( !rootcli || !path || !targetcli ) {
931 return NT_STATUS_INVALID_PARAMETER;
934 /* Don't do anything if this is not a DFS root. */
936 if (smbXcli_conn_protocol(rootcli->conn) >= PROTOCOL_SMB2_02) {
937 root_tcon = rootcli->smb2.tcon;
938 force_encryption = smb2cli_tcon_is_encryption_on(root_tcon);
940 root_tcon = rootcli->smb1.tcon;
941 force_encryption = smb1cli_conn_encryption_on(rootcli->conn);
945 * Avoid more than one leading directory separator
947 while (IS_DIRECTORY_SEP(path[0]) && IS_DIRECTORY_SEP(path[1])) {
951 if (!smbXcli_tcon_is_dfs_share(root_tcon)) {
952 *targetcli = rootcli;
953 *pp_targetpath = talloc_strdup(ctx, path);
954 if (!*pp_targetpath) {
955 return NT_STATUS_NO_MEMORY;
962 /* Send a trans2_query_path_info to check for a referral. */
964 cleanpath = clean_path(ctx, path);
966 return NT_STATUS_NO_MEMORY;
969 dfs_path = cli_dfs_make_full_path(ctx, rootcli, cleanpath);
971 return NT_STATUS_NO_MEMORY;
974 status = cli_qpathinfo_basic( rootcli, dfs_path, &sbuf, &attributes);
975 if (NT_STATUS_IS_OK(status)) {
976 /* This is an ordinary path, just return it. */
977 *targetcli = rootcli;
978 *pp_targetpath = talloc_strdup(ctx, path);
979 if (!*pp_targetpath) {
980 return NT_STATUS_NO_MEMORY;
985 /* Special case where client asked for a path that does not exist */
987 if (cli_dfs_check_error(rootcli, NT_STATUS_OBJECT_NAME_NOT_FOUND,
989 *targetcli = rootcli;
990 *pp_targetpath = talloc_strdup(ctx, path);
991 if (!*pp_targetpath) {
992 return NT_STATUS_NO_MEMORY;
997 /* We got an error, check for DFS referral. */
999 if (!cli_dfs_check_error(rootcli, NT_STATUS_PATH_NOT_COVERED,
1004 /* Check for the referral. */
1006 cli_ipc = cli_state_dup(ctx, rootcli);
1007 if (cli_ipc == NULL) {
1008 return NT_STATUS_NO_MEMORY;
1011 dfs_creds = get_cmdline_auth_info_creds(auth_info);
1013 status = cli_tree_connect_creds(cli_ipc, "IPC$", "IPC", dfs_creds);
1014 if (!NT_STATUS_IS_OK(status)) {
1015 d_printf("tree connect failed: %s\n", nt_errstr(status));
1016 cli_shutdown(cli_ipc);
1020 if (force_encrypt) {
1021 status = cli_cm_force_encryption_creds(cli_ipc,
1024 if (!NT_STATUS_IS_OK(status)) {
1025 cli_shutdown(cli_ipc);
1030 status = cli_dfs_get_referral(ctx, cli_ipc, dfs_path, &refs,
1031 &num_refs, &consumed);
1032 if (!NT_STATUS_IS_OK(status)) {
1036 if (!num_refs || !refs[0].dfspath) {
1037 return NT_STATUS_NOT_FOUND;
1041 * Bug#10123 - DFS referal entries can be provided in a random order,
1042 * so check the connection cache for each item to avoid unnecessary
1045 dfs_refs = talloc_array(ctx, struct cli_dfs_path_split, num_refs);
1046 if (dfs_refs == NULL) {
1047 return NT_STATUS_NO_MEMORY;
1050 for (count = 0; count < num_refs; count++) {
1051 if (!split_dfs_path(dfs_refs, refs[count].dfspath,
1052 &dfs_refs[count].server,
1053 &dfs_refs[count].share,
1054 &dfs_refs[count].extrapath)) {
1055 TALLOC_FREE(dfs_refs);
1056 return NT_STATUS_NOT_FOUND;
1059 ccli = cli_cm_find(rootcli, dfs_refs[count].server,
1060 dfs_refs[count].share);
1062 extrapath = dfs_refs[count].extrapath;
1069 * If no cached connection was found, then connect to the first live
1070 * referral server in the list.
1072 for (count = 0; (ccli == NULL) && (count < num_refs); count++) {
1073 /* Connect to the target server & share */
1074 status = cli_cm_connect(ctx, rootcli,
1075 dfs_refs[count].server,
1077 dfs_refs[count].share,
1079 cli_state_is_encryption_on(rootcli),
1080 smbXcli_conn_protocol(rootcli->conn),
1084 if (!NT_STATUS_IS_OK(status)) {
1085 d_printf("Unable to follow dfs referral [\\%s\\%s]\n",
1086 dfs_refs[count].server,
1087 dfs_refs[count].share);
1090 extrapath = dfs_refs[count].extrapath;
1095 /* No available referral server for the connection */
1096 if (*targetcli == NULL) {
1097 TALLOC_FREE(dfs_refs);
1101 /* Make sure to recreate the original string including any wildcards. */
1103 dfs_path = cli_dfs_make_full_path(ctx, rootcli, path);
1105 TALLOC_FREE(dfs_refs);
1106 return NT_STATUS_NO_MEMORY;
1108 pathlen = strlen(dfs_path);
1109 consumed = MIN(pathlen, consumed);
1110 *pp_targetpath = talloc_strdup(ctx, &dfs_path[consumed]);
1111 if (!*pp_targetpath) {
1112 TALLOC_FREE(dfs_refs);
1113 return NT_STATUS_NO_MEMORY;
1115 dfs_path[consumed] = '\0';
1118 * *pp_targetpath is now the unconsumed part of the path.
1119 * dfs_path is now the consumed part of the path
1120 * (in \server\share\path format).
1123 if (extrapath && strlen(extrapath) > 0) {
1124 /* EMC Celerra NAS version 5.6.50 (at least) doesn't appear to */
1125 /* put the trailing \ on the path, so to be save we put one in if needed */
1126 if (extrapath[strlen(extrapath)-1] != '\\' && **pp_targetpath != '\\') {
1127 *pp_targetpath = talloc_asprintf(ctx,
1132 *pp_targetpath = talloc_asprintf(ctx,
1137 if (!*pp_targetpath) {
1138 TALLOC_FREE(dfs_refs);
1139 return NT_STATUS_NO_MEMORY;
1143 /* parse out the consumed mount path */
1144 /* trim off the \server\share\ */
1148 if (*ppath != '\\') {
1149 d_printf("cli_resolve_path: "
1150 "dfs_path (%s) not in correct format.\n",
1152 TALLOC_FREE(dfs_refs);
1153 return NT_STATUS_NOT_FOUND;
1156 ppath++; /* Now pointing at start of server name. */
1158 if ((ppath = strchr_m( dfs_path, '\\' )) == NULL) {
1159 TALLOC_FREE(dfs_refs);
1160 return NT_STATUS_NOT_FOUND;
1163 ppath++; /* Now pointing at start of share name. */
1165 if ((ppath = strchr_m( ppath+1, '\\' )) == NULL) {
1166 TALLOC_FREE(dfs_refs);
1167 return NT_STATUS_NOT_FOUND;
1170 ppath++; /* Now pointing at path component. */
1172 newmount = talloc_asprintf(ctx, "%s\\%s", mountpt, ppath );
1174 TALLOC_FREE(dfs_refs);
1175 return NT_STATUS_NOT_FOUND;
1178 cli_set_mntpoint(*targetcli, newmount);
1180 /* Check for another dfs referral, note that we are not
1181 checking for loops here. */
1183 if (!strequal(*pp_targetpath, "\\") && !strequal(*pp_targetpath, "/")) {
1184 status = cli_resolve_path(ctx,
1191 if (NT_STATUS_IS_OK(status)) {
1193 * When cli_resolve_path returns true here it's always
1194 * returning the complete path in newpath, so we're done
1197 *targetcli = newcli;
1198 *pp_targetpath = newpath;
1199 TALLOC_FREE(dfs_refs);
1206 if (smbXcli_conn_protocol((*targetcli)->conn) >= PROTOCOL_SMB2_02) {
1207 target_tcon = (*targetcli)->smb2.tcon;
1209 target_tcon = (*targetcli)->smb1.tcon;
1212 /* If returning true ensure we return a dfs root full path. */
1213 if (smbXcli_tcon_is_dfs_share(target_tcon)) {
1214 dfs_path = talloc_strdup(ctx, *pp_targetpath);
1216 TALLOC_FREE(dfs_refs);
1217 return NT_STATUS_NO_MEMORY;
1219 *pp_targetpath = cli_dfs_make_full_path(ctx, *targetcli, dfs_path);
1220 if (*pp_targetpath == NULL) {
1221 TALLOC_FREE(dfs_refs);
1222 return NT_STATUS_NO_MEMORY;
1226 TALLOC_FREE(dfs_refs);
1227 return NT_STATUS_OK;
1230 /********************************************************************
1231 ********************************************************************/
1233 bool cli_check_msdfs_proxy(TALLOC_CTX *ctx,
1234 struct cli_state *cli,
1235 const char *sharename,
1236 char **pp_newserver,
1239 struct cli_credentials *creds)
1241 struct client_dfs_referral *refs = NULL;
1242 size_t num_refs = 0;
1243 size_t consumed = 0;
1244 char *fullpath = NULL;
1246 struct smbXcli_tcon *orig_tcon = NULL;
1247 char *newextrapath = NULL;
1249 const char *remote_name;
1251 if (!cli || !sharename) {
1255 remote_name = smbXcli_conn_remote_name(cli->conn);
1257 /* special case. never check for a referral on the IPC$ share */
1259 if (strequal(sharename, "IPC$")) {
1263 /* send a trans2_query_path_info to check for a referral */
1265 fullpath = talloc_asprintf(ctx, "\\%s\\%s", remote_name, sharename);
1270 /* Store tcon state. */
1271 if (cli_state_has_tcon(cli)) {
1272 orig_tcon = cli_state_save_tcon(cli);
1273 if (orig_tcon == NULL) {
1278 /* check for the referral */
1280 if (!NT_STATUS_IS_OK(cli_tree_connect(cli, "IPC$", "IPC", NULL))) {
1281 cli_state_restore_tcon(cli, orig_tcon);
1285 if (force_encrypt) {
1286 status = cli_cm_force_encryption_creds(cli, creds, "IPC$");
1287 if (!NT_STATUS_IS_OK(status)) {
1288 cli_state_restore_tcon(cli, orig_tcon);
1293 status = cli_dfs_get_referral(ctx, cli, fullpath, &refs,
1294 &num_refs, &consumed);
1295 res = NT_STATUS_IS_OK(status);
1297 status = cli_tdis(cli);
1299 cli_state_restore_tcon(cli, orig_tcon);
1301 if (!NT_STATUS_IS_OK(status)) {
1305 if (!res || !num_refs) {
1309 if (!refs[0].dfspath) {
1313 if (!split_dfs_path(ctx, refs[0].dfspath, pp_newserver,
1314 pp_newshare, &newextrapath)) {
1318 /* check that this is not a self-referral */
1320 if (strequal(remote_name, *pp_newserver) &&
1321 strequal(sharename, *pp_newshare)) {