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"
30 /********************************************************************
33 DFS paths are *always* of the form \server\share\<pathname> (the \ characters
34 are not C escaped here).
36 - but if we're using POSIX paths then <pathname> may contain
37 '/' separators, not '\\' separators. So cope with '\\' or '/'
38 as a separator when looking at the pathname part.... JRA.
39 ********************************************************************/
41 /********************************************************************
42 Ensure a connection is encrypted.
43 ********************************************************************/
45 NTSTATUS cli_cm_force_encryption(struct cli_state *c,
49 const char *sharename)
53 if (smbXcli_conn_protocol(c->conn) >= PROTOCOL_SMB2_02) {
54 status = smb2cli_session_encryption_on(c->smb2.session);
55 if (NT_STATUS_EQUAL(status,NT_STATUS_NOT_SUPPORTED)) {
56 d_printf("Encryption required and "
57 "server doesn't support "
58 "SMB3 encryption - failing connect\n");
59 } else if (!NT_STATUS_IS_OK(status)) {
60 d_printf("Encryption required and "
61 "setup failed with error %s.\n",
67 status = cli_force_encryption(c,
72 if (NT_STATUS_EQUAL(status,NT_STATUS_NOT_SUPPORTED)) {
73 d_printf("Encryption required and "
74 "server that doesn't support "
75 "UNIX extensions - failing connect\n");
76 } else if (NT_STATUS_EQUAL(status,NT_STATUS_UNKNOWN_REVISION)) {
77 d_printf("Encryption required and "
78 "can't get UNIX CIFS extensions "
79 "version from server.\n");
80 } else if (NT_STATUS_EQUAL(status,NT_STATUS_UNSUPPORTED_COMPRESSION)) {
81 d_printf("Encryption required and "
82 "share %s doesn't support "
83 "encryption.\n", sharename);
84 } else if (!NT_STATUS_IS_OK(status)) {
85 d_printf("Encryption required and "
86 "setup failed with error %s.\n",
93 /********************************************************************
94 Return a connection to a server.
95 ********************************************************************/
97 static NTSTATUS do_connect(TALLOC_CTX *ctx,
100 const struct user_auth_info *auth_info,
106 struct cli_state **pcli)
108 struct cli_state *c = NULL;
111 char *newserver, *newshare;
112 const char *username;
113 const char *password;
117 /* make a copy so we don't modify the global string 'service' */
118 servicename = talloc_strdup(ctx,share);
120 return NT_STATUS_NO_MEMORY;
122 sharename = servicename;
123 if (*sharename == '\\') {
125 if (server == NULL) {
128 sharename = strchr_m(sharename,'\\');
130 return NT_STATUS_NO_MEMORY;
135 if (server == NULL) {
136 return NT_STATUS_INVALID_PARAMETER;
139 if (get_cmdline_auth_info_use_kerberos(auth_info)) {
140 flags |= CLI_FULL_CONNECTION_USE_KERBEROS;
142 if (get_cmdline_auth_info_fallback_after_kerberos(auth_info)) {
143 flags |= CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS;
145 if (get_cmdline_auth_info_use_ccache(auth_info)) {
146 flags |= CLI_FULL_CONNECTION_USE_CCACHE;
148 if (get_cmdline_auth_info_use_pw_nt_hash(auth_info)) {
149 flags |= CLI_FULL_CONNECTION_USE_NT_HASH;
152 status = cli_connect_nb(
153 server, NULL, port, name_type, NULL,
154 get_cmdline_auth_info_signing_state(auth_info),
157 if (!NT_STATUS_IS_OK(status)) {
158 d_printf("Connection to %s failed (Error %s)\n",
164 if (max_protocol == 0) {
165 max_protocol = PROTOCOL_NT1;
167 DEBUG(4,(" session request ok\n"));
169 status = smbXcli_negprot(c->conn, c->timeout,
170 lp_client_min_protocol(),
173 if (!NT_STATUS_IS_OK(status)) {
174 d_printf("protocol negotiation failed: %s\n",
180 if (smbXcli_conn_protocol(c->conn) >= PROTOCOL_SMB2_02) {
181 /* Ensure we ask for some initial credits. */
182 smb2cli_conn_set_max_credits(c->conn, DEFAULT_SMB2_MAX_CREDITS);
185 username = get_cmdline_auth_info_username(auth_info);
186 password = get_cmdline_auth_info_password(auth_info);
188 status = cli_session_setup(c, username,
189 password, strlen(password),
190 password, strlen(password),
192 if (!NT_STATUS_IS_OK(status)) {
193 /* If a password was not supplied then
194 * try again with a null username. */
195 if (password[0] || !username[0] ||
196 get_cmdline_auth_info_use_kerberos(auth_info) ||
197 !NT_STATUS_IS_OK(status = cli_session_setup(c, "",
201 d_printf("session setup failed: %s\n",
203 if (NT_STATUS_EQUAL(status,
204 NT_STATUS_MORE_PROCESSING_REQUIRED))
205 d_printf("did you forget to run kinit?\n");
209 d_printf("Anonymous login successful\n");
212 if (!NT_STATUS_IS_OK(status)) {
213 DEBUG(10,("cli_init_creds() failed: %s\n", nt_errstr(status)));
218 if ( show_sessetup ) {
219 if (*c->server_domain) {
220 DEBUG(0,("Domain=[%s] OS=[%s] Server=[%s]\n",
221 c->server_domain,c->server_os,c->server_type));
222 } else if (*c->server_os || *c->server_type) {
223 DEBUG(0,("OS=[%s] Server=[%s]\n",
224 c->server_os,c->server_type));
227 DEBUG(4,(" session setup ok\n"));
229 /* here's the fun part....to support 'msdfs proxy' shares
230 (on Samba or windows) we have to issues a TRANS_GET_DFS_REFERRAL
231 here before trying to connect to the original share.
232 cli_check_msdfs_proxy() will fail if it is a normal share. */
234 if (smbXcli_conn_dfs_supported(c->conn) &&
235 cli_check_msdfs_proxy(ctx, c, sharename,
236 &newserver, &newshare,
242 return do_connect(ctx, newserver,
243 newshare, auth_info, false,
244 force_encrypt, max_protocol,
245 port, name_type, pcli);
248 /* must be a normal share */
250 status = cli_tree_connect(c, sharename, "?????",
251 password, strlen(password)+1);
252 if (!NT_STATUS_IS_OK(status)) {
253 d_printf("tree connect failed: %s\n", nt_errstr(status));
259 status = cli_cm_force_encryption(c,
264 if (!NT_STATUS_IS_OK(status)) {
270 DEBUG(4,(" tconx ok\n"));
275 /****************************************************************************
276 ****************************************************************************/
278 static void cli_set_mntpoint(struct cli_state *cli, const char *mnt)
280 TALLOC_CTX *frame = talloc_stackframe();
281 char *name = clean_name(frame, mnt);
286 TALLOC_FREE(cli->dfs_mountpoint);
287 cli->dfs_mountpoint = talloc_strdup(cli, name);
291 /********************************************************************
292 Add a new connection to the list.
293 referring_cli == NULL means a new initial connection.
294 ********************************************************************/
296 static NTSTATUS cli_cm_connect(TALLOC_CTX *ctx,
297 struct cli_state *referring_cli,
300 const struct user_auth_info *auth_info,
306 struct cli_state **pcli)
308 struct cli_state *cli;
311 status = do_connect(ctx, server, share,
313 show_hdr, force_encrypt, max_protocol,
314 port, name_type, &cli);
316 if (!NT_STATUS_IS_OK(status)) {
320 /* Enter into the list. */
322 DLIST_ADD_END(referring_cli, cli, struct cli_state *);
325 if (referring_cli && referring_cli->requested_posix_capabilities) {
327 uint32 caplow, caphigh;
328 status = cli_unix_extensions_version(cli, &major, &minor,
330 if (NT_STATUS_IS_OK(status)) {
331 cli_set_unix_extensions_capabilities(cli,
341 /********************************************************************
342 Return a connection to a server on a particular share.
343 ********************************************************************/
345 static struct cli_state *cli_cm_find(struct cli_state *cli,
355 /* Search to the start of the list. */
356 for (p = cli; p; p = DLIST_PREV(p)) {
357 const char *remote_name =
358 smbXcli_conn_remote_name(p->conn);
360 if (strequal(server, remote_name) &&
361 strequal(share,p->share)) {
366 /* Search to the end of the list. */
367 for (p = cli->next; p; p = p->next) {
368 const char *remote_name =
369 smbXcli_conn_remote_name(p->conn);
371 if (strequal(server, remote_name) &&
372 strequal(share,p->share)) {
380 /****************************************************************************
381 Open a client connection to a \\server\share.
382 ****************************************************************************/
384 NTSTATUS cli_cm_open(TALLOC_CTX *ctx,
385 struct cli_state *referring_cli,
388 const struct user_auth_info *auth_info,
394 struct cli_state **pcli)
396 /* Try to reuse an existing connection in this list. */
397 struct cli_state *c = cli_cm_find(referring_cli, server, share);
405 if (auth_info == NULL) {
406 /* Can't do a new connection
407 * without auth info. */
408 d_printf("cli_cm_open() Unable to open connection [\\%s\\%s] "
409 "without auth info\n",
411 return NT_STATUS_INVALID_PARAMETER;
414 status = cli_cm_connect(ctx,
425 if (!NT_STATUS_IS_OK(status)) {
432 /****************************************************************************
433 ****************************************************************************/
435 void cli_cm_display(struct cli_state *cli)
439 for (i=0; cli; cli = cli->next,i++ ) {
440 d_printf("%d:\tserver=%s, share=%s\n",
441 i, smbXcli_conn_remote_name(cli->conn), cli->share);
445 /****************************************************************************
446 ****************************************************************************/
448 /****************************************************************************
449 ****************************************************************************/
452 void cli_cm_set_credentials(struct user_auth_info *auth_info)
454 SAFE_FREE(cm_creds.username);
455 cm_creds.username = SMB_STRDUP(get_cmdline_auth_info_username(
458 if (get_cmdline_auth_info_got_pass(auth_info)) {
459 cm_set_password(get_cmdline_auth_info_password(auth_info));
462 cm_creds.use_kerberos = get_cmdline_auth_info_use_kerberos(auth_info);
463 cm_creds.fallback_after_kerberos = false;
464 cm_creds.signing_state = get_cmdline_auth_info_signing_state(auth_info);
468 /**********************************************************************
469 split a dfs path into the server, share name, and extrapath components
470 **********************************************************************/
472 static bool split_dfs_path(TALLOC_CTX *ctx,
473 const char *nodepath,
483 *pp_extrapath = NULL;
485 path = talloc_strdup(ctx, nodepath);
490 if ( path[0] != '\\' ) {
494 p = strchr_m( path + 1, '\\' );
502 /* Look for any extra/deep path */
503 q = strchr_m(p, '\\');
507 *pp_extrapath = talloc_strdup(ctx, q);
509 *pp_extrapath = talloc_strdup(ctx, "");
511 if (*pp_extrapath == NULL) {
515 *pp_share = talloc_strdup(ctx, p);
516 if (*pp_share == NULL) {
520 *pp_server = talloc_strdup(ctx, &path[1]);
521 if (*pp_server == NULL) {
529 TALLOC_FREE(*pp_share);
530 TALLOC_FREE(*pp_extrapath);
535 /****************************************************************************
536 Return the original path truncated at the directory component before
537 the first wildcard character. Trust the caller to provide a NULL
539 ****************************************************************************/
541 static char *clean_path(TALLOC_CTX *ctx, const char *path)
547 /* No absolute paths. */
548 while (IS_DIRECTORY_SEP(*path)) {
552 path_out = talloc_strdup(ctx, path);
557 p1 = strchr_m(path_out, '*');
558 p2 = strchr_m(path_out, '?');
570 /* Now go back to the start of this component. */
571 p1 = strrchr_m(path_out, '/');
572 p2 = strrchr_m(path_out, '\\');
579 /* Strip any trailing separator */
581 len = strlen(path_out);
582 if ( (len > 0) && IS_DIRECTORY_SEP(path_out[len-1])) {
583 path_out[len-1] = '\0';
589 /****************************************************************************
590 ****************************************************************************/
592 static char *cli_dfs_make_full_path(TALLOC_CTX *ctx,
593 struct cli_state *cli,
596 char path_sep = '\\';
598 /* Ensure the extrapath doesn't start with a separator. */
599 while (IS_DIRECTORY_SEP(*dir)) {
603 if (cli->requested_posix_capabilities & CIFS_UNIX_POSIX_PATHNAMES_CAP) {
606 return talloc_asprintf(ctx, "%c%s%c%s%c%s",
608 smbXcli_conn_remote_name(cli->conn),
615 /********************************************************************
616 check for dfs referral
617 ********************************************************************/
619 static bool cli_dfs_check_error(struct cli_state *cli, NTSTATUS expected,
622 /* only deal with DS when we negotiated NT_STATUS codes and UNICODE */
624 if (!(smbXcli_conn_use_unicode(cli->conn))) {
627 if (!(smb1cli_conn_capabilities(cli->conn) & CAP_STATUS32)) {
630 if (NT_STATUS_EQUAL(status, expected)) {
636 /********************************************************************
637 Get the dfs referral link.
638 ********************************************************************/
640 NTSTATUS cli_dfs_get_referral(TALLOC_CTX *ctx,
641 struct cli_state *cli,
643 struct client_dfs_referral **refs,
647 unsigned int param_len = 0;
648 uint16_t recv_flags2;
649 uint8_t *param = NULL;
650 uint8_t *rdata = NULL;
653 smb_ucs2_t *path_ucs;
654 char *consumed_path = NULL;
655 uint16_t consumed_ucs;
656 uint16 num_referrals;
657 struct client_dfs_referral *referrals = NULL;
659 TALLOC_CTX *frame = talloc_stackframe();
664 param = talloc_array(talloc_tos(), uint8_t, 2);
666 status = NT_STATUS_NO_MEMORY;
669 SSVAL(param, 0, 0x03); /* max referral level */
671 param = trans2_bytes_push_str(param, smbXcli_conn_use_unicode(cli->conn),
672 path, strlen(path)+1,
675 status = NT_STATUS_NO_MEMORY;
678 param_len = talloc_get_size(param);
679 path_ucs = (smb_ucs2_t *)¶m[2];
681 if (smbXcli_conn_protocol(cli->conn) >= PROTOCOL_SMB2_02) {
682 DATA_BLOB in_input_buffer;
683 DATA_BLOB in_output_buffer = data_blob_null;
684 DATA_BLOB out_input_buffer = data_blob_null;
685 DATA_BLOB out_output_buffer = data_blob_null;
687 in_input_buffer.data = param;
688 in_input_buffer.length = param_len;
690 status = smb2cli_ioctl(cli->conn,
694 UINT64_MAX, /* in_fid_persistent */
695 UINT64_MAX, /* in_fid_volatile */
696 FSCTL_DFS_GET_REFERRALS,
697 0, /* in_max_input_length */
699 CLI_BUFFER_SIZE, /* in_max_output_length */
701 SMB2_IOCTL_FLAG_IS_FSCTL,
705 if (!NT_STATUS_IS_OK(status)) {
709 if (out_output_buffer.length < 4) {
710 status = NT_STATUS_INVALID_NETWORK_RESPONSE;
714 recv_flags2 = FLAGS2_UNICODE_STRINGS;
715 rdata = out_output_buffer.data;
716 endp = (char *)rdata + out_output_buffer.length;
718 unsigned int data_len = 0;
721 SSVAL(setup, 0, TRANSACT2_GET_DFS_REFERRAL);
723 status = cli_trans(talloc_tos(), cli, SMBtrans2,
727 NULL, 0, CLI_BUFFER_SIZE,
729 NULL, 0, NULL, /* rsetup */
731 &rdata, 4, &data_len);
732 if (!NT_STATUS_IS_OK(status)) {
736 endp = (char *)rdata + data_len;
739 consumed_ucs = SVAL(rdata, 0);
740 num_referrals = SVAL(rdata, 2);
742 /* consumed_ucs is the number of bytes
743 * of the UCS2 path consumed not counting any
744 * terminating null. We need to convert
745 * back to unix charset and count again
746 * to get the number of bytes consumed from
747 * the incoming path. */
750 if (pull_string_talloc(talloc_tos(),
758 status = map_nt_error_from_unix(errno);
760 status = NT_STATUS_INVALID_NETWORK_RESPONSE;
764 if (consumed_path == NULL) {
765 status = map_nt_error_from_unix(errno);
768 *consumed = strlen(consumed_path);
770 if (num_referrals != 0) {
776 referrals = talloc_array(ctx, struct client_dfs_referral,
780 status = NT_STATUS_NO_MEMORY;
783 /* start at the referrals array */
786 for (i=0; i<num_referrals && p < endp; i++) {
790 ref_version = SVAL(p, 0);
791 ref_size = SVAL(p, 2);
792 node_offset = SVAL(p, 16);
794 if (ref_version != 3) {
799 referrals[i].proximity = SVAL(p, 8);
800 referrals[i].ttl = SVAL(p, 10);
802 if (p + node_offset > endp) {
803 status = NT_STATUS_INVALID_NETWORK_RESPONSE;
806 clistr_pull_talloc(referrals,
809 &referrals[i].dfspath,
811 PTR_DIFF(endp, p+node_offset),
812 STR_TERMINATE|STR_UNICODE);
814 if (!referrals[i].dfspath) {
815 status = map_nt_error_from_unix(errno);
820 if (i < num_referrals) {
821 status = NT_STATUS_INVALID_NETWORK_RESPONSE;
826 *num_refs = num_referrals;
835 /********************************************************************
836 ********************************************************************/
838 NTSTATUS cli_resolve_path(TALLOC_CTX *ctx,
840 const struct user_auth_info *dfs_auth_info,
841 struct cli_state *rootcli,
843 struct cli_state **targetcli,
844 char **pp_targetpath)
846 struct client_dfs_referral *refs = NULL;
849 struct cli_state *cli_ipc = NULL;
850 char *dfs_path = NULL;
851 char *cleanpath = NULL;
852 char *extrapath = NULL;
856 struct cli_state *newcli = NULL;
857 char *newpath = NULL;
858 char *newmount = NULL;
860 SMB_STRUCT_STAT sbuf;
863 struct smbXcli_tcon *root_tcon = NULL;
864 struct smbXcli_tcon *target_tcon = NULL;
866 if ( !rootcli || !path || !targetcli ) {
867 return NT_STATUS_INVALID_PARAMETER;
870 /* Don't do anything if this is not a DFS root. */
872 if (smbXcli_conn_protocol(rootcli->conn) >= PROTOCOL_SMB2_02) {
873 root_tcon = rootcli->smb2.tcon;
875 root_tcon = rootcli->smb1.tcon;
878 if (!smbXcli_tcon_is_dfs_share(root_tcon)) {
879 *targetcli = rootcli;
880 *pp_targetpath = talloc_strdup(ctx, path);
881 if (!*pp_targetpath) {
882 return NT_STATUS_NO_MEMORY;
889 /* Send a trans2_query_path_info to check for a referral. */
891 cleanpath = clean_path(ctx, path);
893 return NT_STATUS_NO_MEMORY;
896 dfs_path = cli_dfs_make_full_path(ctx, rootcli, cleanpath);
898 return NT_STATUS_NO_MEMORY;
901 status = cli_qpathinfo_basic( rootcli, dfs_path, &sbuf, &attributes);
902 if (NT_STATUS_IS_OK(status)) {
903 /* This is an ordinary path, just return it. */
904 *targetcli = rootcli;
905 *pp_targetpath = talloc_strdup(ctx, path);
906 if (!*pp_targetpath) {
907 return NT_STATUS_NO_MEMORY;
912 /* Special case where client asked for a path that does not exist */
914 if (cli_dfs_check_error(rootcli, NT_STATUS_OBJECT_NAME_NOT_FOUND,
916 *targetcli = rootcli;
917 *pp_targetpath = talloc_strdup(ctx, path);
918 if (!*pp_targetpath) {
919 return NT_STATUS_NO_MEMORY;
924 /* We got an error, check for DFS referral. */
926 if (!cli_dfs_check_error(rootcli, NT_STATUS_PATH_NOT_COVERED,
931 /* Check for the referral. */
933 status = cli_cm_open(ctx,
935 smbXcli_conn_remote_name(rootcli->conn),
939 smb1cli_conn_encryption_on(rootcli->conn),
940 smbXcli_conn_protocol(rootcli->conn),
944 if (!NT_STATUS_IS_OK(status)) {
948 status = cli_dfs_get_referral(ctx, cli_ipc, dfs_path, &refs,
949 &num_refs, &consumed);
950 if (!NT_STATUS_IS_OK(status) || !num_refs) {
954 /* Just store the first referral for now. */
956 if (!refs[0].dfspath) {
957 return NT_STATUS_NOT_FOUND;
959 if (!split_dfs_path(ctx, refs[0].dfspath, &server, &share,
961 return NT_STATUS_NOT_FOUND;
964 /* Make sure to recreate the original string including any wildcards. */
966 dfs_path = cli_dfs_make_full_path(ctx, rootcli, path);
968 return NT_STATUS_NO_MEMORY;
970 pathlen = strlen(dfs_path);
971 consumed = MIN(pathlen, consumed);
972 *pp_targetpath = talloc_strdup(ctx, &dfs_path[consumed]);
973 if (!*pp_targetpath) {
974 return NT_STATUS_NO_MEMORY;
976 dfs_path[consumed] = '\0';
979 * *pp_targetpath is now the unconsumed part of the path.
980 * dfs_path is now the consumed part of the path
981 * (in \server\share\path format).
984 /* Open the connection to the target server & share */
985 status = cli_cm_open(ctx, rootcli,
990 smb1cli_conn_encryption_on(rootcli->conn),
991 smbXcli_conn_protocol(rootcli->conn),
995 if (!NT_STATUS_IS_OK(status)) {
996 d_printf("Unable to follow dfs referral [\\%s\\%s]\n",
1001 if (extrapath && strlen(extrapath) > 0) {
1002 /* EMC Celerra NAS version 5.6.50 (at least) doesn't appear to */
1003 /* put the trailing \ on the path, so to be save we put one in if needed */
1004 if (extrapath[strlen(extrapath)-1] != '\\' && **pp_targetpath != '\\') {
1005 *pp_targetpath = talloc_asprintf(ctx,
1010 *pp_targetpath = talloc_asprintf(ctx,
1015 if (!*pp_targetpath) {
1016 return NT_STATUS_NO_MEMORY;
1020 /* parse out the consumed mount path */
1021 /* trim off the \server\share\ */
1025 if (*ppath != '\\') {
1026 d_printf("cli_resolve_path: "
1027 "dfs_path (%s) not in correct format.\n",
1029 return NT_STATUS_NOT_FOUND;
1032 ppath++; /* Now pointing at start of server name. */
1034 if ((ppath = strchr_m( dfs_path, '\\' )) == NULL) {
1035 return NT_STATUS_NOT_FOUND;
1038 ppath++; /* Now pointing at start of share name. */
1040 if ((ppath = strchr_m( ppath+1, '\\' )) == NULL) {
1041 return NT_STATUS_NOT_FOUND;
1044 ppath++; /* Now pointing at path component. */
1046 newmount = talloc_asprintf(ctx, "%s\\%s", mountpt, ppath );
1048 return NT_STATUS_NOT_FOUND;
1051 cli_set_mntpoint(*targetcli, newmount);
1053 /* Check for another dfs referral, note that we are not
1054 checking for loops here. */
1056 if (!strequal(*pp_targetpath, "\\") && !strequal(*pp_targetpath, "/")) {
1057 status = cli_resolve_path(ctx,
1064 if (NT_STATUS_IS_OK(status)) {
1066 * When cli_resolve_path returns true here it's always
1067 * returning the complete path in newpath, so we're done
1070 *targetcli = newcli;
1071 *pp_targetpath = newpath;
1078 if (smbXcli_conn_protocol((*targetcli)->conn) >= PROTOCOL_SMB2_02) {
1079 target_tcon = (*targetcli)->smb2.tcon;
1081 target_tcon = (*targetcli)->smb1.tcon;
1084 /* If returning true ensure we return a dfs root full path. */
1085 if (smbXcli_tcon_is_dfs_share(target_tcon)) {
1086 dfs_path = talloc_strdup(ctx, *pp_targetpath);
1088 return NT_STATUS_NO_MEMORY;
1090 *pp_targetpath = cli_dfs_make_full_path(ctx, *targetcli, dfs_path);
1091 if (*pp_targetpath == NULL) {
1092 return NT_STATUS_NO_MEMORY;
1096 return NT_STATUS_OK;
1099 /********************************************************************
1100 ********************************************************************/
1102 bool cli_check_msdfs_proxy(TALLOC_CTX *ctx,
1103 struct cli_state *cli,
1104 const char *sharename,
1105 char **pp_newserver,
1108 const char *username,
1109 const char *password,
1112 struct client_dfs_referral *refs = NULL;
1113 size_t num_refs = 0;
1114 size_t consumed = 0;
1115 char *fullpath = NULL;
1118 char *newextrapath = NULL;
1120 const char *remote_name;
1122 if (!cli || !sharename) {
1126 remote_name = smbXcli_conn_remote_name(cli->conn);
1127 cnum = cli_state_get_tid(cli);
1129 /* special case. never check for a referral on the IPC$ share */
1131 if (strequal(sharename, "IPC$")) {
1135 /* send a trans2_query_path_info to check for a referral */
1137 fullpath = talloc_asprintf(ctx, "\\%s\\%s", remote_name, sharename);
1142 /* check for the referral */
1144 if (!NT_STATUS_IS_OK(cli_tree_connect(cli, "IPC$", "IPC", NULL, 0))) {
1148 if (force_encrypt) {
1149 status = cli_cm_force_encryption(cli,
1154 if (!NT_STATUS_IS_OK(status)) {
1159 status = cli_dfs_get_referral(ctx, cli, fullpath, &refs,
1160 &num_refs, &consumed);
1161 res = NT_STATUS_IS_OK(status);
1163 status = cli_tdis(cli);
1164 if (!NT_STATUS_IS_OK(status)) {
1168 cli_state_set_tid(cli, cnum);
1170 if (!res || !num_refs) {
1174 if (!refs[0].dfspath) {
1178 if (!split_dfs_path(ctx, refs[0].dfspath, pp_newserver,
1179 pp_newshare, &newextrapath)) {
1183 /* check that this is not a self-referral */
1185 if (strequal(remote_name, *pp_newserver) &&
1186 strequal(sharename, *pp_newshare)) {