diff options
Diffstat (limited to 'source3/libsmb/clidfs.c')
| -rw-r--r-- | source3/libsmb/clidfs.c | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/source3/libsmb/clidfs.c b/source3/libsmb/clidfs.c new file mode 100644 index 0000000000..bb82fbfabb --- /dev/null +++ b/source3/libsmb/clidfs.c @@ -0,0 +1,154 @@ +/* + Unix SMB/CIFS implementation. + client connect/disconnect routines + Copyright (C) Gerald (Jerry) Carter + + 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 2 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, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#define NO_SYSLOG + +#include "includes.h" + +/******************************************************************** + check for dfs referral +********************************************************************/ + +BOOL check_for_dfs_referral( struct cli_state *cli ) +{ + uint32 flgs2 = SVAL(cli->inbuf,smb_flg2); + + /* only deal with DS when we negotiated NT_STATUS codes and UNICODE */ + + if ( !( (flgs2&FLAGS2_32_BIT_ERROR_CODES) && (flgs2&FLAGS2_UNICODE_STRINGS) ) ) + return False; + + if ( NT_STATUS_EQUAL( NT_STATUS_PATH_NOT_COVERED, NT_STATUS(IVAL(cli->inbuf,smb_rcls)) ) ) + return True; + + return False; +} + +/******************************************************************** + split a dfs path into the server and share name components +********************************************************************/ + +void split_dfs_path( const char *nodepath, fstring server, fstring share ) +{ + char *p; + pstring path; + + pstrcpy( path, nodepath ); + + if ( path[0] != '\\' ) + return; + + p = strrchr_m( path, '\\' ); + + if ( !p ) + return; + + *p = '\0'; + p++; + + fstrcpy( share, p ); + fstrcpy( server, &path[1] ); +} + +/******************************************************************** + get the dfs referral link +********************************************************************/ + +BOOL cli_dfs_get_referral( struct cli_state *cli, const char *path, + struct referral **refs, size_t *num_refs) +{ + unsigned int data_len = 0; + unsigned int param_len = 0; + uint16 setup = TRANSACT2_GET_DFS_REFERRAL; + char param[sizeof(pstring)+2]; + pstring data; + char *rparam=NULL, *rdata=NULL; + char *p; + size_t pathlen = 2*(strlen(path)+1); + uint16 num_referrals; + struct referral *referrals; + + memset(param, 0, sizeof(param)); + SSVAL(param, 0, 0x03); /* max referral level */ + p = ¶m[2]; + + p += clistr_push(cli, p, path, MIN(pathlen, sizeof(param)-2), STR_TERMINATE); + param_len = PTR_DIFF(p, param); + + if (!cli_send_trans(cli, SMBtrans2, + NULL, /* name */ + -1, 0, /* fid, flags */ + &setup, 1, 0, /* setup, length, max */ + param, param_len, 2, /* param, length, max */ + (char *)&data, data_len, cli->max_xmit /* data, length, max */ + )) { + return False; + } + + if (!cli_receive_trans(cli, SMBtrans2, + &rparam, ¶m_len, + &rdata, &data_len)) { + return False; + } + + num_referrals = SVAL( rdata, 2 ); + + if ( num_referrals != 0 ) { + uint16 ref_version; + uint16 ref_size; + int i; + uint16 node_offset; + + + referrals = SMB_XMALLOC_ARRAY( struct referral, num_referrals ); + + /* start at the referrals array */ + + p = rdata+8; + for ( i=0; i<num_referrals; i++ ) { + ref_version = SVAL( p, 0 ); + ref_size = SVAL( p, 2 ); + node_offset = SVAL( p, 16 ); + + if ( ref_version != 3 ) { + p += ref_size; + continue; + } + + referrals[0].proximity = SVAL( p, 8 ); + referrals[0].ttl = SVAL( p, 10 ); + + clistr_pull( cli, referrals[0].alternate_path, p+node_offset, + sizeof(referrals[0].alternate_path), -1, STR_TERMINATE|STR_UNICODE ); + + p += ref_size; + } + + } + + *num_refs = num_referrals; + *refs = referrals; + + SAFE_FREE(rdata); + SAFE_FREE(rparam); + + return True; +} + |