/* Unix SMB/CIFS implementation. SMB NT transaction handling Copyright (C) Jeremy Allison 1994-1998 Copyright (C) Stefan (metze) Metzmacher 2003 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. */ #include "includes.h" extern int max_send; extern enum protocol_types Protocol; extern int smb_read_error; extern struct current_user current_user; static const char *known_nt_pipes[] = { "\\LANMAN", "\\srvsvc", "\\samr", "\\wkssvc", "\\NETLOGON", "\\ntlsa", "\\ntsvcs", "\\lsass", "\\lsarpc", "\\winreg", "\\initshutdown", "\\spoolss", "\\netdfs", "\\rpcecho", "\\svcctl", "\\eventlog", "\\unixinfo", NULL }; static char *nttrans_realloc(char **ptr, size_t size) { if (ptr==NULL) { smb_panic("nttrans_realloc() called with NULL ptr\n"); } *ptr = (char *)SMB_REALLOC(*ptr, size); if(*ptr == NULL) { return NULL; } memset(*ptr,'\0',size); return *ptr; } /**************************************************************************** Send the required number of replies back. We assume all fields other than the data fields are set correctly for the type of call. HACK ! Always assumes smb_setup field is zero. ****************************************************************************/ int send_nt_replies(char *outbuf, int bufsize, NTSTATUS nt_error, char *params, int paramsize, char *pdata, int datasize) { int data_to_send = datasize; int params_to_send = paramsize; int useable_space; char *pp = params; char *pd = pdata; int params_sent_thistime, data_sent_thistime, total_sent_thistime; int alignment_offset = 3; int data_alignment_offset = 0; /* * Initially set the wcnt area to be 18 - this is true for all * transNT replies. */ set_message(outbuf,18,0,True); if (NT_STATUS_V(nt_error)) { ERROR_NT(nt_error); } /* * If there genuinely are no parameters or data to send just send * the empty packet. */ if(params_to_send == 0 && data_to_send == 0) { show_msg(outbuf); if (!send_smb(smbd_server_fd(),outbuf)) { exit_server_cleanly("send_nt_replies: send_smb failed."); } return 0; } /* * When sending params and data ensure that both are nicely aligned. * Only do this alignment when there is also data to send - else * can cause NT redirector problems. */ if (((params_to_send % 4) != 0) && (data_to_send != 0)) { data_alignment_offset = 4 - (params_to_send % 4); } /* * Space is bufsize minus Netbios over TCP header minus SMB header. * The alignment_offset is to align the param bytes on a four byte * boundary (2 bytes for data len, one byte pad). * NT needs this to work correctly. */ useable_space = bufsize - ((smb_buf(outbuf)+ alignment_offset+data_alignment_offset) - outbuf); /* * useable_space can never be more than max_send minus the * alignment offset. */ useable_space = MIN(useable_space, max_send - (alignment_offset+data_alignment_offset)); while (params_to_send || data_to_send) { /* * Calculate whether we will totally or partially fill this packet. */ total_sent_thistime = params_to_send + data_to_send + alignment_offset + data_alignment_offset; /* * We can never send more than useable_space. */ total_sent_thistime = MIN(total_sent_thistime, useable_space); set_message(outbuf, 18, total_sent_thistime, True); /* * Set total params and data to be sent. */ SIVAL(outbuf,smb_ntr_TotalParameterCount,paramsize); SIVAL(outbuf,smb_ntr_TotalDataCount,datasize); /* * Calculate how many parameters and data we can fit into * this packet. Parameters get precedence. */ params_sent_thistime = MIN(params_to_send,useable_space); data_sent_thistime = useable_space - params_sent_thistime; data_sent_thistime = MIN(data_sent_thistime,data_to_send); SIVAL(outbuf,smb_ntr_ParameterCount,params_sent_thistime); if(params_sent_thistime == 0) { SIVAL(outbuf,smb_ntr_ParameterOffset,0); SIVAL(outbuf,smb_ntr_ParameterDisplacement,0); } else { /* * smb_ntr_ParameterOffset is the offset from the start of the SMB header to the * parameter bytes, however the first 4 bytes of outbuf are * the Netbios over TCP header. Thus use smb_base() to subtract * them from the calculation. */ SIVAL(outbuf,smb_ntr_ParameterOffset, ((smb_buf(outbuf)+alignment_offset) - smb_base(outbuf))); /* * Absolute displacement of param bytes sent in this packet. */ SIVAL(outbuf,smb_ntr_ParameterDisplacement,pp - params); } /* * Deal with the data portion. */ SIVAL(outbuf,smb_ntr_DataCount, data_sent_thistime); if(data_sent_thistime == 0) { SIVAL(outbuf,smb_ntr_DataOffset,0); SIVAL(outbuf,smb_ntr_DataDisplacement, 0); } else { /* * The offset of the data bytes is the offset of the * parameter bytes plus the number of parameters being sent this time. */ SIVAL(outbuf,smb_ntr_DataOffset,((smb_buf(outbuf)+alignment_offset) - smb_base(outbuf)) + params_sent_thistime + data_alignment_offset); SIVAL(outbuf,smb_ntr_DataDisplacement, pd - pdata); } /* * Copy the param bytes into the packet. */ if(params_sent_thistime) { memcpy((smb_buf(outbuf)+alignment_offset),pp,params_sent_thistime); } /* * Copy in the data bytes */ if(data_sent_thistime) { memcpy(smb_buf(outbuf)+alignment_offset+params_sent_thistime+ data_alignment_offset,pd,data_sent_thistime); } DEBUG(9,("nt_rep: params_sent_thistime = %d, data_sent_thistime = %d, useable_space = %d\n", params_sent_thistime, data_sent_thistime, useable_space)); DEBUG(9,("nt_rep: params_to_send = %d, data_to_send = %d, paramsize = %d, datasize = %d\n", params_to_send, data_to_send, paramsize, datasize)); /* Send the packet */ show_msg(outbuf); if (!send_smb(smbd_server_fd(),outbuf)) { exit_server_cleanly("send_nt_replies: send_smb failed."); } pp += params_sent_thistime; pd += data_sent_thistime; params_to_send -= params_sent_thistime; data_to_send -= data_sent_thistime; /* * Sanity check */ if(params_to_send < 0 || data_to_send < 0) { DEBUG(0,("send_nt_replies failed sanity check pts = %d, dts = %d\n!!!", params_to_send, data_to_send)); return -1; } } return 0; } /**************************************************************************** Is it an NTFS stream name ? ****************************************************************************/ BOOL is_ntfs_stream_name(const char *fname) { if (lp_posix_pathnames()) { return False; } return (strchr_m(fname, ':') != NULL) ? True : False; } /**************************************************************************** Save case statics. ****************************************************************************/ static BOOL saved_case_sensitive; static BOOL saved_case_preserve; static BOOL saved_short_case_preserve; /**************************************************************************** Save case semantics. ****************************************************************************/ static uint32 set_posix_case_semantics(connection_struct *conn, uint32 file_attributes) { if(!(file_attributes & FILE_FLAG_POSIX_SEMANTICS)) { return file_attributes; } saved_case_sensitive = conn->case_sensitive; saved_case_preserve = conn->case_preserve; saved_short_case_preserve = conn->short_case_preserve; /* Set to POSIX. */ conn->case_sensitive = True; conn->case_preserve = True; conn->short_case_preserve = True; return (file_attributes & ~FILE_FLAG_POSIX_SEMANTICS); } /**************************************************************************** Restore case semantics. ****************************************************************************/ static void restore_case_semantics(connection_struct *conn, uint32 file_attributes) { if(!(file_attributes & FILE_FLAG_POSIX_SEMANTICS)) { return; } conn->case_sensitive = saved_case_sensitive; conn->case_preserve = saved_case_preserve; conn->short_case_preserve = saved_short_case_preserve; } /**************************************************************************** Reply to an NT create and X call on a pipe. ****************************************************************************/ static int nt_open_pipe(char *fname, connection_struct *conn, char *inbuf, char *outbuf, int *ppnum) { smb_np_struct *p = NULL; uint16 vuid = SVAL(inbuf, smb_uid); int i; DEBUG(4,("nt_open_pipe: Opening pipe %s.\n", fname)); /* See if it is one we want to handle. */ if (lp_disable_spoolss() && strequal(fname, "\\spoolss")) { return(ERROR_BOTH(NT_STATUS_OBJECT_NAME_NOT_FOUND,ERRDOS,ERRbadpipe)); } for( i = 0; known_nt_pipes[i]; i++ ) { if( strequal(fname,known_nt_pipes[i])) { break; } } if ( known_nt_pipes[i] == NULL ) { return(ERROR_BOTH(NT_STATUS_OBJECT_NAME_NOT_FOUND,ERRDOS,ERRbadpipe)); } /* Strip \\ off the name. */ fname++; DEBUG(3,("nt_open_pipe: Known pipe %s opening.\n", fname)); p = open_rpc_pipe_p(fname, conn, vuid); if (!p) { return(ERROR_DOS(ERRSRV,ERRnofids)); } /* Add pipe to db */ if ( !store_pipe_opendb( p ) ) { DEBUG(3,("nt_open_pipe: failed to store %s pipe open.\n", fname)); } *ppnum = p->pnum; return 0; } /**************************************************************************** Reply to an NT create and X call for pipes. ****************************************************************************/ static int do_ntcreate_pipe_open(connection_struct *conn, char *inbuf,char *outbuf,int length,int bufsize) { pstring fname; int ret; int pnum = -1; char *p = NULL; uint32 flags = IVAL(inbuf,smb_ntcreate_Flags); srvstr_pull_buf(inbuf, fname, smb_buf(inbuf), sizeof(fname), STR_TERMINATE); if ((ret = nt_open_pipe(fname, conn, inbuf, outbuf, &pnum)) != 0) { return ret; } /* * Deal with pipe return. */ if (flags & EXTENDED_RESPONSE_REQUIRED) { /* This is very strange. We * return 50 words, but only set * the wcnt to 42 ? It's definately * what happens on the wire.... */ set_message(outbuf,50,0,True); SCVAL(outbuf,smb_wct,42); } else { set_message(outbuf,34,0,True); } p = outbuf + smb_vwv2; p++; SSVAL(p,0,pnum); p += 2; SIVAL(p,0,FILE_WAS_OPENED); p += 4; p += 32; SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */ p += 20; /* File type. */ SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE); /* Device state. */ SSVAL(p,2, 0x5FF); /* ? */ p += 4; if (flags & EXTENDED_RESPONSE_REQUIRED) { p += 26; SIVAL(p,0,FILE_GENERIC_ALL); /* * For pipes W2K3 seems to return * 0x12019B next. * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA) */ SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA); } DEBUG(5,("do_ntcreate_pipe_open: open pipe = %s\n", fname)); return chain_reply(inbuf,outbuf,length,bufsize); } /**************************************************************************** Reply to an NT create and X call for a quota file. ****************************************************************************/ int reply_ntcreate_and_X_quota(connection_struct *conn, char *inbuf, char *outbuf, int length, int bufsize, enum FAKE_FILE_TYPE fake_file_type, const char *fname) { int result; char *p; uint32 desired_access = IVAL(inbuf,smb_ntcreate_DesiredAccess); files_struct *fsp; NTSTATUS status; status = open_fake_file(conn, fake_file_type, fname, desired_access, &fsp); if (!NT_STATUS_IS_OK(status)) { return ERROR_NT(status); } set_message(outbuf,34,0,True); p = outbuf + smb_vwv2; /* SCVAL(p,0,NO_OPLOCK_RETURN); */ p++; SSVAL(p,0,fsp->fnum); DEBUG(5,("reply_ntcreate_and_X_quota: fnum = %d, open name = %s\n", fsp->fnum, fsp->fsp_name)); result = chain_reply(inbuf,outbuf,length,bufsize); return result; } /**************************************************************************** Reply to an NT create and X call. ****************************************************************************/ int reply_ntcreate_and_X(connection_struct *conn, char *inbuf,char *outbuf,int length,int bufsize) { int result; pstring fname; uint32 flags = IVAL(inbuf,smb_ntcreate_Flags); uint32 access_mask = IVAL(inbuf,smb_ntcreate_DesiredAccess); uint32 file_attributes = IVAL(inbuf,smb_ntcreate_FileAttributes); uint32 new_file_attributes; uint32 share_access = IVAL(inbuf,smb_ntcreate_ShareAccess); uint32 create_disposition = IVAL(inbuf,smb_ntcreate_CreateDisposition); uint32 create_options = IVAL(inbuf,smb_ntcreate_CreateOptions); uint16 root_dir_fid = (uint16)IVAL(inbuf,smb_ntcreate_RootDirectoryFid); /* Breakout the oplock request bits so we can set the reply bits separately. */ int oplock_request = 0; uint32 fattr=0; SMB_OFF_T file_len = 0; SMB_STRUCT_STAT sbuf; int info = 0; files_struct *fsp = NULL; char *p = NULL; struct timespec c_timespec; struct timespec a_timespec; struct timespec m_timespec; BOOL extended_oplock_granted = False; NTSTATUS status; START_PROFILE(SMBntcreateX); DEBUG(10,("reply_ntcreate_and_X: flags = 0x%x, access_mask = 0x%x " "file_attributes = 0x%x, share_access = 0x%x, " "create_disposition = 0x%x create_options = 0x%x " "root_dir_fid = 0x%x\n", (unsigned int)flags, (unsigned int)access_mask, (unsigned int)file_attributes, (unsigned int)share_access, (unsigned int)create_disposition, (unsigned int)create_options, (unsigned int)root_dir_fid )); /* * If it's an IPC, use the pipe handler. */ if (IS_IPC(conn)) { if (lp_nt_pipe_support()) { END_PROFILE(SMBntcreateX); return do_ntcreate_pipe_open(conn,inbuf,outbuf,length,bufsize); } else { END_PROFILE(SMBntcreateX); return(ERROR_DOS(ERRDOS,ERRnoaccess)); } } if (create_options & FILE_OPEN_BY_FILE_ID) { END_PROFILE(SMBntcreateX); return ERROR_NT(NT_STATUS_NOT_SUPPORTED); } /* * Get the file name. */ if(root_dir_fid != 0) { /* * This filename is relative to a directory fid. */ pstring rel_fname; files_struct *dir_fsp = file_fsp(inbuf,smb_ntcreate_RootDirectoryFid); size_t dir_name_len; if(!dir_fsp) { END_PROFILE(SMBntcreateX); return ERROR_DOS(ERRDOS,ERRbadfid); } if(!dir_fsp->is_directory) { srvstr_get_path(inbuf, fname, smb_buf(inbuf), sizeof(fname), 0, STR_TERMINATE, &status); if (!NT_STATUS_IS_OK(status)) { END_PROFILE(SMBntcreateX); return ERROR_NT(status); } /* * Check to see if this is a mac fork of some kind. */ if( is_ntfs_stream_name(fname)) { END_PROFILE(SMBntcreateX); return ERROR_NT(NT_STATUS_OBJECT_PATH_NOT_FOUND); } /* we need to handle the case when we get a relative open relative to a file and the pathname is blank - this is a reopen! (hint from demyn plantenberg) */ END_PROFILE(SMBntcreateX); return(ERROR_DOS(ERRDOS,ERRbadfid)); } /* * Copy in the base directory name. */ pstrcpy( fname, dir_fsp->fsp_name ); dir_name_len = strlen(fname); /* * Ensure it ends in a '\'. */ if((fname[dir_name_len-1] != '\\') && (fname[dir_name_len-1] != '/')) { pstrcat(fname, "/"); dir_name_len++; } srvstr_get_path(inbuf, rel_fname, smb_buf(inbuf), sizeof(rel_fname), 0, STR_TERMINATE, &status); if (!NT_STATUS_IS_OK(status)) { END_PROFILE(SMBntcreateX); return ERROR_NT(status); } pstrcat(fname, rel_fname); } else { srvstr_get_path(inbuf, fname, smb_buf(inbuf), sizeof(fname), 0, STR_TERMINATE, &status); if (!NT_STATUS_IS_OK(status)) { END_PROFILE(SMBntcreateX); return ERROR_NT(status); } /* * Check to see if this is a mac fork of some kind. */ if( is_ntfs_stream_name(fname)) { enum FAKE_FILE_TYPE fake_file_type = is_fake_file(fname); if (fake_file_type!=FAKE_FILE_TYPE_NONE) { /* * Here we go! support for changing the disk quotas --metze * * We need to fake up to open this MAGIC QUOTA file * and return a valid FID. * * w2k close this file directly after openening * xp also tries a QUERY_FILE_INFO on the file and then close it */ result = reply_ntcreate_and_X_quota(conn, inbuf, outbuf, length, bufsize, fake_file_type, fname); END_PROFILE(SMBntcreateX); return result; } else { END_PROFILE(SMBntcreateX); return ERROR_NT(NT_STATUS_OBJECT_PATH_NOT_FOUND); } } } /* * Now contruct the smb_open_mode value from the filename, * desired access and the share access. */ status = resolve_dfspath(conn, SVAL(inbuf,smb_flg2) & FLAGS2_DFS_PATHNAMES, fname); if (!NT_STATUS_IS_OK(status)) { END_PROFILE(SMBntcreateX); if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) { return ERROR_BOTH(NT_STATUS_PATH_NOT_COVERED, ERRSRV, ERRbadpath); } return ERROR_NT(status); } oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0; if (oplock_request) { oplock_request |= (flags & REQUEST_BATCH_OPLOCK) ? BATCH_OPLOCK : 0; } /* * Ordinary file or directory. */ /* * Check if POSIX semantics are wanted. */ new_file_attributes = set_posix_case_semantics(conn, file_attributes); status = unix_convert(conn, fname, False, NULL, &sbuf); if (!NT_STATUS_IS_OK(status)) { restore_case_semantics(conn, file_attributes); END_PROFILE(SMBntcreateX); return ERROR_NT(status); } /* All file access must go through check_name() */ status = check_name(conn, fname); if (!NT_STATUS_IS_OK(status)) { restore_case_semantics(conn, file_attributes); END_PROFILE(SMBntcreateX); return ERROR_NT(status); } /* This is the correct thing to do (check every time) but can_delete is expensive (it may have to read the parent directory permissions). So for now we're not doing it unless we have a strong hint the client is really going to delete this file. If the client is forcing FILE_CREATE let the filesystem take care of the permissions. */ /* Setting FILE_SHARE_DELETE is the hint. */ if (lp_acl_check_permissions(SNUM(conn)) && (create_disposition != FILE_CREATE) && (share_access & FILE_SHARE_DELETE) && (access_mask & DELETE_ACCESS)) { if ((dos_mode(conn, fname, &sbuf) & FILE_ATTRIBUTE_READONLY) || !can_delete_file_in_directory(conn, fname)) { restore_case_semantics(conn, file_attributes); END_PROFILE(SMBntcreateX); return ERROR_NT(NT_STATUS_ACCESS_DENIED); } } /* * If it's a request for a directory open, deal with it separately. */ if(create_options & FILE_DIRECTORY_FILE) { /* Can't open a temp directory. IFS kit test. */ if (file_attributes & FILE_ATTRIBUTE_TEMPORARY) { END_PROFILE(SMBntcreateX); return ERROR_NT(NT_STATUS_INVALID_PARAMETER); } oplock_request = 0; status = open_directory(conn, fname, &sbuf, access_mask, share_access, create_disposition, create_options, new_file_attributes, &info, &fsp); restore_case_semantics(conn, file_attributes); if(!NT_STATUS_IS_OK(status)) { if (!use_nt_status() && NT_STATUS_EQUAL( status, NT_STATUS_OBJECT_NAME_COLLISION)) { status = NT_STATUS_DOS(ERRDOS, ERRfilexists); } END_PROFILE(SMBntcreateX); return ERROR_NT(status); } } else { /* * Ordinary file case. */ /* NB. We have a potential bug here. If we * cause an oplock break to ourselves, then we * could end up processing filename related * SMB requests whilst we await the oplock * break response. As we may have changed the * filename case semantics to be POSIX-like, * this could mean a filename request could * fail when it should succeed. This is a rare * condition, but eventually we must arrange * to restore the correct case semantics * before issuing an oplock break request to * our client. JRA. */ status = open_file_ntcreate(conn,fname,&sbuf, access_mask, share_access, create_disposition, create_options, new_file_attributes, oplock_request, &info, &fsp); if (!NT_STATUS_IS_OK(status)) { /* We cheat here. There are two cases we * care about. One is a directory rename, * where the NT client will attempt to * open the source directory for * DELETE access. Note that when the * NT client does this it does *not* * set the directory bit in the * request packet. This is translated * into a read/write open * request. POSIX states that any open * for write request on a directory * will generate an EISDIR error, so * we can catch this here and open a * pseudo handle that is flagged as a * directory. The second is an open * for a permissions read only, which * we handle in the open_file_stat case. JRA. */ if (NT_STATUS_EQUAL(status, NT_STATUS_FILE_IS_A_DIRECTORY)) { /* * Fail the open if it was explicitly a non-directory file. */ if (create_options & FILE_NON_DIRECTORY_FILE) { restore_case_semantics(conn, file_attributes); END_PROFILE(SMBntcreateX); return ERROR_FORCE_NT(NT_STATUS_FILE_IS_A_DIRECTORY); } oplock_request = 0; status = open_directory(conn, fname, &sbuf, access_mask, share_access, create_disposition, create_options, new_file_attributes, &info, &fsp); if(!NT_STATUS_IS_OK(status)) { restore_case_semantics(conn, file_attributes); if (!use_nt_status() && NT_STATUS_EQUAL( status, NT_STATUS_OBJECT_NAME_COLLISION)) { status = NT_STATUS_DOS(ERRDOS, ERRfilexists); } END_PROFILE(SMBntcreateX); return ERROR_NT(status); } } else { restore_case_semantics(conn, file_attributes); END_PROFILE(SMBntcreateX); if (open_was_deferred(SVAL(inbuf,smb_mid))) { /* We have re-scheduled this call. */ return -1; } return ERROR_NT(status); } } } restore_case_semantics(conn, file_attributes); file_len = sbuf.st_size; fattr = dos_mode(conn,fname,&sbuf); if(fattr == 0) { fattr = FILE_ATTRIBUTE_NORMAL; } if (!fsp->is_directory && (fattr & aDIR)) { close_file(fsp,ERROR_CLOSE); END_PROFILE(SMBntcreateX); return ERROR_DOS(ERRDOS,ERRnoaccess); } /* Save the requested allocation size. */ if ((info == FILE_WAS_CREATED) || (info == FILE_WAS_OVERWRITTEN)) { SMB_BIG_UINT allocation_size = (SMB_BIG_UINT)IVAL(inbuf,smb_ntcreate_AllocationSize); #ifdef LARGE_SMB_OFF_T allocation_size |= (((SMB_BIG_UINT)IVAL(inbuf,smb_ntcreate_AllocationSize + 4)) << 32); #endif if (allocation_size && (allocation_size > (SMB_BIG_UINT)file_len)) { fsp->initial_allocation_size = smb_roundup(fsp->conn, allocation_size); if (fsp->is_directory) { close_file(fsp,ERROR_CLOSE); END_PROFILE(SMBntcreateX); /* Can't set allocation size on a directory. */ return ERROR_NT(NT_STATUS_ACCESS_DENIED); } if (vfs_allocate_file_space(fsp, fsp->initial_allocation_size) == -1) { close_file(fsp,ERROR_CLOSE); END_PROFILE(SMBntcreateX); return ERROR_NT(NT_STATUS_DISK_FULL); } } else { fsp->initial_allocation_size = smb_roundup(fsp->conn,(SMB_BIG_UINT)file_len); } } /* * If the caller set the extended oplock request bit * and we granted one (by whatever means) - set the * correct bit for extended oplock reply. */ if (oplock_request && lp_fake_oplocks(SNUM(conn))) { extended_oplock_granted = True; } if(oplock_request && EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) { extended_oplock_granted = True; } if (flags & EXTENDED_RESPONSE_REQUIRED) { /* This is very strange. We * return 50 words, but only set * the wcnt to 42 ? It's definately * what happens on the wire.... */ set_message(outbuf,50,0,True); SCVAL(outbuf,smb_wct,42); } else { set_message(outbuf,34,0,True); } p = outbuf + smb_vwv2; /* * Currently as we don't support level II oplocks we just report * exclusive & batch here. */ if (extended_oplock_granted) { if (flags & REQUEST_BATCH_OPLOCK) { SCVAL(p,0, BATCH_OPLOCK_RETURN); } else { SCVAL(p,0, EXCLUSIVE_OPLOCK_RETURN); } } else if (fsp->oplock_type == LEVEL_II_OPLOCK) { SCVAL(p,0, LEVEL_II_OPLOCK_RETURN); } else { SCVAL(p,0,NO_OPLOCK_RETURN); } p++; SSVAL(p,0,fsp->fnum); p += 2; if ((create_disposition == FILE_SUPERSEDE) && (info == FILE_WAS_OVERWRITTEN)) { SIVAL(p,0,FILE_WAS_SUPERSEDED); } else { SIVAL(p,0,info); } p += 4; /* Create time. */ c_timespec = get_create_timespec(&sbuf,lp_fake_dir_create_times(SNUM(conn))); a_timespec = get_atimespec(&sbuf); m_timespec = get_mtimespec(&sbuf); if (lp_dos_filetime_resolution(SNUM(conn))) { dos_filetime_timespec(&c_timespec); dos_filetime_timespec(&a_timespec); dos_filetime_timespec(&m_timespec); } put_long_date_timespec(p, c_timespec); /* create time. */ p += 8; put_long_date_timespec(p, a_timespec); /* access time */ p += 8; put_long_date_timespec(p, m_timespec); /* write time */ p += 8; put_long_date_timespec(p, m_timespec); /* change time */ p += 8; SIVAL(p,0,fattr); /* File Attributes. */ p += 4; SOFF_T(p, 0, get_allocation_size(conn,fsp,&sbuf)); p += 8; SOFF_T(p,0,file_len); p += 8; if (flags & EXTENDED_RESPONSE_REQUIRED) { SSVAL(p,2,0x7); } p += 4; SCVAL(p,0,fsp->is_directory ? 1 : 0); if (flags & EXTENDED_RESPONSE_REQUIRED) { uint32 perms = 0; p += 26; if (fsp->is_directory || can_write_to_file(conn, fname, &sbuf)) { perms = FILE_GENERIC_ALL; } else { perms = FILE_GENERIC_READ|FILE_EXECUTE; } SIVAL(p,0,perms); } DEBUG(5,("reply_ntcreate_and_X: fnum = %d, open name = %s\n", fsp->fnum, fsp->fsp_name)); result = chain_reply(inbuf,outbuf,length,bufsize); END_PROFILE(SMBntcreateX); return result; } /**************************************************************************** Reply to a NT_TRANSACT_CREATE call to open a pipe. ****************************************************************************/ static int do_nt_transact_create_pipe( connection_struct *conn, char *inbuf, char *outbuf, int length, int bufsize, uint16 **ppsetup, uint32 setup_count, char **ppparams, uint32 parameter_count, char **ppdata, uint32 data_count) { pstring fname; char *params = *ppparams; int ret; int pnum = -1; char *p = NULL; NTSTATUS status; size_t param_len; uint32 flags; /* * Ensure minimum number of parameters sent. */ if(parameter_count < 54) { DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)parameter_count)); return ERROR_DOS(ERRDOS,ERRnoaccess); } flags = IVAL(params,0); srvstr_get_path(inbuf, fname, params+53, sizeof(fname), parameter_count-53, STR_TERMINATE, &status); if (!NT_STATUS_IS_OK(status)) { return ERROR_NT(status); } if ((ret = nt_open_pipe(fname, conn, inbuf, outbuf, &pnum)) != 0) { return ret; } /* Realloc the size of parameters and data we will return */ if (flags & EXTENDED_RESPONSE_REQUIRED) { /* Extended response is 32 more byyes. */ param_len = 101; } else { param_len = 69; } params = nttrans_realloc(ppparams, param_len); if(params == NULL) { return ERROR_DOS(ERRDOS,ERRnomem); } p = params; SCVAL(p,0,NO_OPLOCK_RETURN); p += 2; SSVAL(p,0,pnum); p += 2; SIVAL(p,0,FILE_WAS_OPENED); p += 8; p += 32; SIVAL(p,0,FILE_ATTRIBUTE_NORMAL); /* File Attributes. */ p += 20; /* File type. */ SSVAL(p,0,FILE_TYPE_MESSAGE_MODE_PIPE); /* Device state. */ SSVAL(p,2, 0x5FF); /* ? */ p += 4; if (flags & EXTENDED_RESPONSE_REQUIRED) { p += 26; SIVAL(p,0,FILE_GENERIC_ALL); /* * For pipes W2K3 seems to return * 0x12019B next. * This is ((FILE_GENERIC_READ|FILE_GENERIC_WRITE) & ~FILE_APPEND_DATA) */ SIVAL(p,4,(FILE_GENERIC_READ|FILE_GENERIC_WRITE)&~FILE_APPEND_DATA); } DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname)); /* Send the required number of replies */ send_nt_replies(outbuf, bufsize, NT_STATUS_OK, params, param_len, *ppdata, 0); return -1; } /**************************************************************************** Internal fn to set security descriptors. ****************************************************************************/ static NTSTATUS set_sd(files_struct *fsp, char *data, uint32 sd_len, uint32 security_info_sent) { prs_struct pd; SEC_DESC *psd = NULL; TALLOC_CTX *mem_ctx; BOOL ret; if (sd_len == 0 || !lp_nt_acl_support(SNUM(fsp->conn))) { return NT_STATUS_OK; } /* * Init the parse struct we will unmarshall from. */ if ((mem_ctx = talloc_init("set_sd")) == NULL) { DEBUG(0,("set_sd: talloc_init failed.\n")); return NT_STATUS_NO_MEMORY; } prs_init(&pd, 0, mem_ctx, UNMARSHALL); /* * Setup the prs_struct to point at the memory we just * allocated. */ prs_give_memory( &pd, data, sd_len, False); /* * Finally, unmarshall from the data buffer. */ if(!sec_io_desc( "sd data", &psd, &pd, 1)) { DEBUG(0,("set_sd: Error in unmarshalling security descriptor.\n")); /* * Return access denied for want of a better error message.. */ talloc_destroy(mem_ctx); return NT_STATUS_NO_MEMORY; } if (psd->owner_sid==0) { security_info_sent &= ~OWNER_SECURITY_INFORMATION; } if (psd->group_sid==0) { security_info_sent &= ~GROUP_SECURITY_INFORMATION; } if (psd->sacl==0) { security_info_sent &= ~SACL_SECURITY_INFORMATION; } if (psd->dacl==0) { security_info_sent &= ~DACL_SECURITY_INFORMATION; } ret = SMB_VFS_FSET_NT_ACL( fsp, fsp->fh->fd, security_info_sent, psd); if (!ret) { talloc_destroy(mem_ctx); return NT_STATUS_ACCESS_DENIED; } talloc_destroy(mem_ctx); return NT_STATUS_OK; } /**************************************************************************** Read a list of EA names and data from an incoming data buffer. Create an ea_list with them. ****************************************************************************/ static struct ea_list *read_nttrans_ea_list(TALLOC_CTX *ctx, const char *pdata, size_t data_size) { struct ea_list *ea_list_head = NULL; size_t offset = 0; if (data_size < 4) { return NULL; } while (offset + 4 <= data_size) { size_t next_offset = IVAL(pdata,offset); struct ea_list *eal = read_ea_list_entry(ctx, pdata + offset + 4, data_size - offset - 4, NULL); if (!eal) { return NULL; } DLIST_ADD_END(ea_list_head, eal, struct ea_list *); if (next_offset == 0) { break; } offset += next_offset; } return ea_list_head; } /**************************************************************************** Reply to a NT_TRANSACT_CREATE call (needs to process SD's). ****************************************************************************/ static int call_nt_transact_create(connection_struct *conn, char *inbuf, char *outbuf, int length, int bufsize, uint16 **ppsetup, uint32 setup_count, char **ppparams, uint32 parameter_count, char **ppdata, uint32 data_count, uint32 max_data_count) { pstring fname; char *params = *ppparams; char *data = *ppdata; /* Breakout the oplock request bits so we can set the reply bits separately. */ int oplock_request = 0; uint32 fattr=0; SMB_OFF_T file_len = 0; SMB_STRUCT_STAT sbuf; int info = 0; files_struct *fsp = NULL; char *p = NULL; BOOL extended_oplock_granted = False; uint32 flags; uint32 access_mask; uint32 file_attributes; uint32 new_file_attributes; uint32 share_access; uint32 create_disposition; uint32 create_options; uint32 sd_len; uint32 ea_len; uint16 root_dir_fid; struct timespec c_timespec; struct timespec a_timespec; struct timespec m_timespec; struct ea_list *ea_list = NULL; TALLOC_CTX *ctx = NULL; char *pdata = NULL; NTSTATUS status; size_t param_len; DEBUG(5,("call_nt_transact_create\n")); /* * If it's an IPC, use the pipe handler. */ if (IS_IPC(conn)) { if (lp_nt_pipe_support()) { return do_nt_transact_create_pipe(conn, inbuf, outbuf, length, bufsize, ppsetup, setup_count, ppparams, parameter_count, ppdata, data_count); } else { return ERROR_DOS(ERRDOS,ERRnoaccess); } } /* * Ensure minimum number of parameters sent. */ if(parameter_count < 54) { DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count)); return ERROR_NT(NT_STATUS_INVALID_PARAMETER); } flags = IVAL(params,0); access_mask = IVAL(params,8); file_attributes = IVAL(params,20); share_access = IVAL(params,24); create_disposition = IVAL(params,28); create_options = IVAL(params,32); sd_len = IVAL(params,36); ea_len = IVAL(params,40); root_dir_fid = (uint16)IVAL(params,4); /* Ensure the data_len is correct for the sd and ea values given. */ if ((ea_len + sd_len > data_count) || (ea_len > data_count) || (sd_len > data_count) || (ea_len + sd_len < ea_len) || (ea_len + sd_len < sd_len)) { DEBUG(10,("call_nt_transact_create - ea_len = %u, sd_len = %u, data_count = %u\n", (unsigned int)ea_len, (unsigned int)sd_len, (unsigned int)data_count )); return ERROR_NT(NT_STATUS_INVALID_PARAMETER); } if (ea_len) { if (!lp_ea_support(SNUM(conn))) { DEBUG(10,("call_nt_transact_create - ea_len = %u but EA's not supported.\n", (unsigned int)ea_len )); return ERROR_NT(NT_STATUS_EAS_NOT_SUPPORTED); } if (ea_len < 10) { DEBUG(10,("call_nt_transact_create - ea_len = %u - too small (should be more than 10)\n", (unsigned int)ea_len )); return ERROR_NT(NT_STATUS_INVALID_PARAMETER); } } if (create_options & FILE_OPEN_BY_FILE_ID) { return ERROR_NT(NT_STATUS_NOT_SUPPORTED); } /* * Get the file name. */ if(root_dir_fid != 0) { /* * This filename is relative to a directory fid. */ files_struct *dir_fsp = file_fsp(params,4); size_t dir_name_len; if(!dir_fsp) { return ERROR_DOS(ERRDOS,ERRbadfid); } if(!dir_fsp->is_directory) { srvstr_get_path(inbuf, fname, params+53, sizeof(fname), parameter_count-53, STR_TERMINATE, &status); if (!NT_STATUS_IS_OK(status)) { return ERROR_NT(status); } /* * Check to see if this is a mac fork of some kind. */ if( is_ntfs_stream_name(fname)) { return ERROR_NT(NT_STATUS_OBJECT_PATH_NOT_FOUND); } return ERROR_DOS(ERRDOS,ERRbadfid); } /* * Copy in the base directory name. */ pstrcpy( fname, dir_fsp->fsp_name ); dir_name_len = strlen(fname); /* * Ensure it ends in a '\'. */ if((fname[dir_name_len-1] != '\\') && (fname[dir_name_len-1] != '/')) { pstrcat(fname, "/"); dir_name_len++; } { pstring tmpname; srvstr_get_path(inbuf, tmpname, params+53, sizeof(tmpname), parameter_count-53, STR_TERMINATE, &status); if (!NT_STATUS_IS_OK(status)) { return ERROR_NT(status); } pstrcat(fname, tmpname); } } else { srvstr_get_path(inbuf, fname, params+53, sizeof(fname), parameter_count-53, STR_TERMINATE, &status); if (!NT_STATUS_IS_OK(status)) { return ERROR_NT(status); } /* * Check to see if this is a mac fork of some kind. */ if( is_ntfs_stream_name(fname)) { return ERROR_NT(NT_STATUS_OBJECT_PATH_NOT_FOUND); } } oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0; if (oplock_request) { oplock_request |= (flags & REQUEST_BATCH_OPLOCK) ? BATCH_OPLOCK : 0; } /* * Ordinary file or directory. */ /* * Check if POSIX semantics are wanted. */ new_file_attributes = set_posix_case_semantics(conn, file_attributes); status = resolve_dfspath(conn, SVAL(inbuf,smb_flg2) & FLAGS2_DFS_PATHNAMES, fname); if (!NT_STATUS_IS_OK(status)) { if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) { return ERROR_BOTH(NT_STATUS_PATH_NOT_COVERED, ERRSRV, ERRbadpath); } return ERROR_NT(status); } status = unix_convert(conn, fname, False, NULL, &sbuf); if (!NT_STATUS_IS_OK(status)) { restore_case_semantics(conn, file_attributes); return ERROR_NT(status); } /* All file access must go through check_name() */ status = check_name(conn, fname); if (!NT_STATUS_IS_OK(status)) { restore_case_semantics(conn, file_attributes); return ERROR_NT(status); } /* This is the correct thing to do (check every time) but can_delete is expensive (it may have to read the parent directory permissions). So for now we're not doing it unless we have a strong hint the client is really going to delete this file. If the client is forcing FILE_CREATE let the filesystem take care of the permissions. */ /* Setting FILE_SHARE_DELETE is the hint. */ if (lp_acl_check_permissions(SNUM(conn)) && (create_disposition != FILE_CREATE) && (share_access & FILE_SHARE_DELETE) && (access_mask & DELETE_ACCESS)) { if ((dos_mode(conn, fname, &sbuf) & FILE_ATTRIBUTE_READONLY) || !can_delete_file_in_directory(conn, fname)) { restore_case_semantics(conn, file_attributes); return ERROR_NT(NT_STATUS_ACCESS_DENIED); } } if (ea_len) { pdata = data + sd_len; /* We have already checked that ea_len <= data_count here. */ ea_list = read_nttrans_ea_list(tmp_talloc_ctx(), pdata, ea_len); if (!ea_list ) { restore_case_semantics(conn, file_attributes); return ERROR_NT(NT_STATUS_INVALID_PARAMETER); } } /* * If it's a request for a directory open, deal with it separately. */ if(create_options & FILE_DIRECTORY_FILE) { /* Can't open a temp directory. IFS kit test. */ if (file_attributes & FILE_ATTRIBUTE_TEMPORARY) { restore_case_semantics(conn, file_attributes); return ERROR_NT(NT_STATUS_INVALID_PARAMETER); } /* * We will get a create directory here if the Win32 * app specified a security descriptor in the * CreateDirectory() call. */ oplock_request = 0; status = open_directory(conn, fname, &sbuf, access_mask, share_access, create_disposition, create_options, new_file_attributes, &info, &fsp); if(!NT_STATUS_IS_OK(status)) { restore_case_semantics(conn, file_attributes); return ERROR_NT(status); } } else { /* * Ordinary file case. */ status = open_file_ntcreate(conn,fname,&sbuf, access_mask, share_access, create_disposition, create_options, new_file_attributes, oplock_request, &info, &fsp); if (!NT_STATUS_IS_OK(status)) { if (NT_STATUS_EQUAL(status, NT_STATUS_FILE_IS_A_DIRECTORY)) { /* * Fail the open if it was explicitly a non-directory file. */ if (create_options & FILE_NON_DIRECTORY_FILE) { restore_case_semantics(conn, file_attributes); return ERROR_FORCE_NT(NT_STATUS_FILE_IS_A_DIRECTORY); } oplock_request = 0; status = open_directory(conn, fname, &sbuf, access_mask, share_access, create_disposition, create_options, new_file_attributes, &info, &fsp); if(!NT_STATUS_IS_OK(status)) { restore_case_semantics(conn, file_attributes); return ERROR_NT(status); } } else { restore_case_semantics(conn, file_attributes); if (open_was_deferred(SVAL(inbuf,smb_mid))) { /* We have re-scheduled this call. */ return -1; } return ERROR_NT(status); } } } /* * According to the MS documentation, the only time the security * descriptor is applied to the opened file is iff we *created* the * file; an existing file stays the same. * * Also, it seems (from observation) that you can open the file with * any access mask but you can still write the sd. We need to override * the granted access before we call set_sd * Patch for bug #2242 from Tom Lackemann . */ if (lp_nt_acl_support(SNUM(conn)) && sd_len && info == FILE_WAS_CREATED) { uint32 saved_access_mask = fsp->access_mask; /* We have already checked that sd_len <= data_count here. */ fsp->access_mask = FILE_GENERIC_ALL; status = set_sd( fsp, data, sd_len, ALL_SECURITY_INFORMATION); if (!NT_STATUS_IS_OK(status)) { talloc_destroy(ctx); close_file(fsp,ERROR_CLOSE); restore_case_semantics(conn, file_attributes); return ERROR_NT(status); } fsp->access_mask = saved_access_mask; } if (ea_len && (info == FILE_WAS_CREATED)) { status = set_ea(conn, fsp, fname, ea_list); if (!NT_STATUS_IS_OK(status)) { close_file(fsp,ERROR_CLOSE); restore_case_semantics(conn, file_attributes); return ERROR_NT(status); } } restore_case_semantics(conn, file_attributes); file_len = sbuf.st_size; fattr = dos_mode(conn,fname,&sbuf); if(fattr == 0) { fattr = FILE_ATTRIBUTE_NORMAL; } if (!fsp->is_directory && (fattr & aDIR)) { close_file(fsp,ERROR_CLOSE); return ERROR_DOS(ERRDOS,ERRnoaccess); } /* Save the requested allocation size. */ if ((info == FILE_WAS_CREATED) || (info == FILE_WAS_OVERWRITTEN)) { SMB_BIG_UINT allocation_size = (SMB_BIG_UINT)IVAL(params,12); #ifdef LARGE_SMB_OFF_T allocation_size |= (((SMB_BIG_UINT)IVAL(params,16)) << 32); #endif if (allocation_size && (allocation_size > file_len)) { fsp->initial_allocation_size = smb_roundup(fsp->conn, allocation_size); if (fsp->is_directory) { close_file(fsp,ERROR_CLOSE); /* Can't set allocation size on a directory. */ return ERROR_NT(NT_STATUS_ACCESS_DENIED); } if (vfs_allocate_file_space(fsp, fsp->initial_allocation_size) == -1) { close_file(fsp,ERROR_CLOSE); return ERROR_NT(NT_STATUS_DISK_FULL); } } else { fsp->initial_allocation_size = smb_roundup(fsp->conn, (SMB_BIG_UINT)file_len); } } /* * If the caller set the extended oplock request bit * and we granted one (by whatever means) - set the * correct bit for extended oplock reply. */ if (oplock_request && lp_fake_oplocks(SNUM(conn))) { extended_oplock_granted = True; } if(oplock_request && EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) { extended_oplock_granted = True; } /* Realloc the size of parameters and data we will return */ if (flags & EXTENDED_RESPONSE_REQUIRED) { /* Extended response is 32 more byyes. */ param_len = 101; } else { param_len = 69; } params = nttrans_realloc(ppparams, param_len); if(params == NULL) { return ERROR_DOS(ERRDOS,ERRnomem); } p = params; if (extended_oplock_granted) { if (flags & REQUEST_BATCH_OPLOCK) { SCVAL(p,0, BATCH_OPLOCK_RETURN); } else { SCVAL(p,0, EXCLUSIVE_OPLOCK_RETURN); } } else if (fsp->oplock_type == LEVEL_II_OPLOCK) { SCVAL(p,0, LEVEL_II_OPLOCK_RETURN); } else { SCVAL(p,0,NO_OPLOCK_RETURN); } p += 2; SSVAL(p,0,fsp->fnum); p += 2; if ((create_disposition == FILE_SUPERSEDE) && (info == FILE_WAS_OVERWRITTEN)) { SIVAL(p,0,FILE_WAS_SUPERSEDED); } else { SIVAL(p,0,info); } p += 8; /* Create time. */ c_timespec = get_create_timespec(&sbuf,lp_fake_dir_create_times(SNUM(conn))); a_timespec = get_atimespec(&sbuf); m_timespec = get_mtimespec(&sbuf); if (lp_dos_filetime_resolution(SNUM(conn))) { dos_filetime_timespec(&c_timespec); dos_filetime_timespec(&a_timespec); dos_filetime_timespec(&m_timespec); } put_long_date_timespec(p, c_timespec); /* create time. */ p += 8; put_long_date_timespec(p, a_timespec); /* access time */ p += 8; put_long_date_timespec(p, m_timespec); /* write time */ p += 8; put_long_date_timespec(p, m_timespec); /* change time */ p += 8; SIVAL(p,0,fattr); /* File Attributes. */ p += 4; SOFF_T(p, 0, get_allocation_size(conn,fsp,&sbuf)); p += 8; SOFF_T(p,0,file_len); p += 8; if (flags & EXTENDED_RESPONSE_REQUIRED) { SSVAL(p,2,0x7); } p += 4; SCVAL(p,0,fsp->is_directory ? 1 : 0); if (flags & EXTENDED_RESPONSE_REQUIRED) { uint32 perms = 0; p += 26; if (fsp->is_directory || can_write_to_file(conn, fname, &sbuf)) { perms = FILE_GENERIC_ALL; } else { perms = FILE_GENERIC_READ|FILE_EXECUTE; } SIVAL(p,0,perms); } DEBUG(5,("call_nt_transact_create: open name = %s\n", fname)); /* Send the required number of replies */ send_nt_replies(outbuf, bufsize, NT_STATUS_OK, params, param_len, *ppdata, 0); return -1; } /**************************************************************************** Reply to a NT CANCEL request. conn POINTER CAN BE NULL HERE ! ****************************************************************************/ int reply_ntcancel(connection_struct *conn, char *inbuf,char *outbuf,int length,int bufsize) { /* * Go through and cancel any pending change notifies. */ int mid = SVAL(inbuf,smb_mid); START_PROFILE(SMBntcancel); remove_pending_change_notify_requests_by_mid(mid); remove_pending_lock_requests_by_mid(mid); srv_cancel_sign_response(mid); DEBUG(3,("reply_ntcancel: cancel called on mid = %d.\n", mid)); END_PROFILE(SMBntcancel); return(-1); } /**************************************************************************** Copy a file. ****************************************************************************/ static NTSTATUS copy_internals(connection_struct *conn, char *oldname, char *newname, uint32 attrs) { SMB_STRUCT_STAT sbuf1, sbuf2; pstring last_component_oldname; pstring last_component_newname; files_struct *fsp1,*fsp2; uint32 fattr; int info; SMB_OFF_T ret=-1; NTSTATUS status = NT_STATUS_OK; ZERO_STRUCT(sbuf1); ZERO_STRUCT(sbuf2); if (!CAN_WRITE(conn)) { return NT_STATUS_MEDIA_WRITE_PROTECTED; } status = unix_convert(conn, oldname, False, last_component_oldname, &sbuf1); if (!NT_STATUS_IS_OK(status)) { return status; } status = check_name(conn, oldname); if (!NT_STATUS_IS_OK(status)) { return status; } /* Source must already exist. */ if (!VALID_STAT(sbuf1)) { return NT_STATUS_OBJECT_NAME_NOT_FOUND; } /* Ensure attributes match. */ fattr = dos_mode(conn,oldname,&sbuf1); if ((fattr & ~attrs) & (aHIDDEN | aSYSTEM)) { return NT_STATUS_NO_SUCH_FILE; } status = unix_convert(conn, newname, False, last_component_newname, &sbuf2); if (!NT_STATUS_IS_OK(status)) { return status; } status = check_name(conn, newname); if (!NT_STATUS_IS_OK(status)) { return status; } /* Disallow if newname already exists. */ if (VALID_STAT(sbuf2)) { return NT_STATUS_OBJECT_NAME_COLLISION; } /* No links from a directory. */ if (S_ISDIR(sbuf1.st_mode)) { return NT_STATUS_FILE_IS_A_DIRECTORY; } /* Ensure this is within the share. */ status = reduce_name(conn, oldname); if (!NT_STATUS_IS_OK(status)) { return status; } DEBUG(10,("copy_internals: doing file copy %s to %s\n", oldname, newname)); status = open_file_ntcreate(conn,oldname,&sbuf1, FILE_READ_DATA, /* Read-only. */ FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE, FILE_OPEN, 0, /* No create options. */ FILE_ATTRIBUTE_NORMAL, NO_OPLOCK, &info, &fsp1); if (!NT_STATUS_IS_OK(status)) { return status; } status = open_file_ntcreate(conn,newname,&sbuf2, FILE_WRITE_DATA, /* Read-only. */ FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE, FILE_CREATE, 0, /* No create options. */ fattr, NO_OPLOCK, &info, &fsp2); if (!NT_STATUS_IS_OK(status)) { close_file(fsp1,ERROR_CLOSE); return status; } if (sbuf1.st_size) { ret = vfs_transfer_file(fsp1, fsp2, sbuf1.st_size); } /* * As we are opening fsp1 read-only we only expect * an error on close on fsp2 if we are out of space. * Thus we don't look at the error return from the * close of fsp1. */ close_file(fsp1,NORMAL_CLOSE); /* Ensure the modtime is set correctly on the destination file. */ fsp_set_pending_modtime(fsp2, get_mtimespec(&sbuf1)); status = close_file(fsp2,NORMAL_CLOSE); /* Grrr. We have to do this as open_file_ntcreate adds aARCH when it creates the file. This isn't the correct thing to do in the copy case. JRA */ file_set_dosmode(conn, newname, fattr, &sbuf2, parent_dirname(newname)); if (ret < (SMB_OFF_T)sbuf1.st_size) { return NT_STATUS_DISK_FULL; } if (!NT_STATUS_IS_OK(status)) { DEBUG(3,("copy_internals: Error %s copy file %s to %s\n", nt_errstr(status), oldname, newname)); } return status; } /**************************************************************************** Reply to a NT rename request. ****************************************************************************/ int reply_ntrename(connection_struct *conn, char *inbuf,char *outbuf,int length,int bufsize) { int outsize = 0; pstring oldname; pstring newname; char *p; NTSTATUS status; BOOL src_has_wcard = False; BOOL dest_has_wcard = False; uint32 attrs = SVAL(inbuf,smb_vwv0); uint16 rename_type = SVAL(inbuf,smb_vwv1); START_PROFILE(SMBntrename); p = smb_buf(inbuf) + 1; p += srvstr_get_path_wcard(inbuf, oldname, p, sizeof(oldname), 0, STR_TERMINATE, &status, &src_has_wcard); if (!NT_STATUS_IS_OK(status)) { END_PROFILE(SMBntrename); return ERROR_NT(status); } if( is_ntfs_stream_name(oldname)) { /* Can't rename a stream. */ END_PROFILE(SMBntrename); return ERROR_NT(NT_STATUS_ACCESS_DENIED); } if (ms_has_wild(oldname)) { END_PROFILE(SMBntrename); return ERROR_NT(NT_STATUS_OBJECT_PATH_SYNTAX_BAD); } p++; p += srvstr_get_path_wcard(inbuf, newname, p, sizeof(newname), 0, STR_TERMINATE, &status, &dest_has_wcard); if (!NT_STATUS_IS_OK(status)) { END_PROFILE(SMBntrename); return ERROR_NT(status); } status = resolve_dfspath(conn, SVAL(inbuf,smb_flg2) & FLAGS2_DFS_PATHNAMES, oldname); if (!NT_STATUS_IS_OK(status)) { END_PROFILE(SMBntrename); if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) { return ERROR_BOTH(NT_STATUS_PATH_NOT_COVERED, ERRSRV, ERRbadpath); } return ERROR_NT(status); } status = resolve_dfspath(conn, SVAL(inbuf,smb_flg2) & FLAGS2_DFS_PATHNAMES, newname); if (!NT_STATUS_IS_OK(status)) { END_PROFILE(SMBntrename); if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) { return ERROR_BOTH(NT_STATUS_PATH_NOT_COVERED, ERRSRV, ERRbadpath); } return ERROR_NT(status); } DEBUG(3,("reply_ntrename : %s -> %s\n",oldname,newname)); switch(rename_type) { case RENAME_FLAG_RENAME: status = rename_internals(conn, oldname, newname, attrs, False, src_has_wcard, dest_has_wcard); break; case RENAME_FLAG_HARD_LINK: if (src_has_wcard || dest_has_wcard) { /* No wildcards. */ status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD; } else { status = hardlink_internals(conn, oldname, newname); } break; case RENAME_FLAG_COPY: if (src_has_wcard || dest_has_wcard) { /* No wildcards. */ status = NT_STATUS_OBJECT_PATH_SYNTAX_BAD; } else { status = copy_internals(conn, oldname, newname, attrs); } break; case RENAME_FLAG_MOVE_CLUSTER_INFORMATION: status = NT_STATUS_INVALID_PARAMETER; break; default: status = NT_STATUS_ACCESS_DENIED; /* Default error. */ break; } if (!NT_STATUS_IS_OK(status)) { END_PROFILE(SMBntrename); if (open_was_deferred(SVAL(inbuf,smb_mid))) { /* We have re-scheduled this call. */ return -1; } return ERROR_NT(status); } outsize = set_message(outbuf,0,0,False); END_PROFILE(SMBntrename); return(outsize); } /**************************************************************************** Reply to a notify change - queue the request and don't allow a directory to be opened. ****************************************************************************/ static int call_nt_transact_notify_change(connection_struct *conn, char *inbuf, char *outbuf, int length, int bufsize, uint16 **ppsetup, uint32 setup_count, char **ppparams, uint32 parameter_count, char **ppdata, uint32 data_count, uint32 max_data_count, uint32 max_param_count) { uint16 *setup = *ppsetup; files_struct *fsp; uint32 filter; NTSTATUS status; BOOL recursive; if(setup_count < 6) { return ERROR_DOS(ERRDOS,ERRbadfunc); } fsp = file_fsp((char *)setup,4); filter = IVAL(setup, 0); recursive = (SVAL(setup, 6) != 0) ? True : False; DEBUG(3,("call_nt_transact_notify_change\n")); if(!fsp) { return ERROR_DOS(ERRDOS,ERRbadfid); } { char *filter_string; if (!(filter_string = notify_filter_string(NULL, filter))) { return ERROR_NT(NT_STATUS_NO_MEMORY); } DEBUG(3,("call_nt_transact_notify_change: notify change " "called on %s, filter = %s, recursive = %d\n", fsp->fsp_name, filter_string, recursive)); TALLOC_FREE(filter_string); } if((!fsp->is_directory) || (conn != fsp->conn)) { return ERROR_NT(NT_STATUS_INVALID_PARAMETER); } if (fsp->notify == NULL) { status = change_notify_create(fsp, filter, recursive); if (!NT_STATUS_IS_OK(status)) { DEBUG(10, ("change_notify_create returned %s\n", nt_errstr(status))); return ERROR_NT(status); } } if (fsp->notify->num_changes != 0) { /* * We've got changes pending, respond immediately */ /* * TODO: write a torture test to check the filtering behaviour * here. */ change_notify_reply(inbuf, max_param_count, fsp->notify); /* * change_notify_reply() above has independently sent its * results */ return -1; } /* * No changes pending, queue the request */ status = change_notify_add_request(inbuf, max_param_count, filter, recursive, fsp); if (!NT_STATUS_IS_OK(status)) { return ERROR_NT(status); } return -1; } /**************************************************************************** Reply to an NT transact rename command. ****************************************************************************/ static int call_nt_transact_rename(connection_struct *conn, char *inbuf, char *outbuf, int length, int bufsize, uint16 **ppsetup, uint32 setup_count, char **ppparams, uint32 parameter_count, char **ppdata, uint32 data_count, uint32 max_data_count) { char *params = *ppparams; pstring new_name; files_struct *fsp = NULL; BOOL replace_if_exists = False; BOOL dest_has_wcard = False; NTSTATUS status; if(parameter_count < 5) { return ERROR_DOS(ERRDOS,ERRbadfunc); } fsp = file_fsp(params, 0); replace_if_exists = (SVAL(params,2) & RENAME_REPLACE_IF_EXISTS) ? True : False; CHECK_FSP(fsp, conn); srvstr_get_path_wcard(inbuf, new_name, params+4, sizeof(new_name), parameter_count - 4, STR_TERMINATE, &status, &dest_has_wcard); if (!NT_STATUS_IS_OK(status)) { return ERROR_NT(status); } status = rename_internals(conn, fsp->fsp_name, new_name, 0, replace_if_exists, False, dest_has_wcard); if (!NT_STATUS_IS_OK(status)) { if (open_was_deferred(SVAL(inbuf,smb_mid))) { /* We have re-scheduled this call. */ return -1; } return ERROR_NT(status); } /* * Rename was successful. */ send_nt_replies(outbuf, bufsize, NT_STATUS_OK, NULL, 0, NULL, 0); DEBUG(3,("nt transact rename from = %s, to = %s succeeded.\n", fsp->fsp_name, new_name)); return -1; } /****************************************************************************** Fake up a completely empty SD. *******************************************************************************/ static size_t get_null_nt_acl(TALLOC_CTX *mem_ctx, SEC_DESC **ppsd) { size_t sd_size; *ppsd = make_standard_sec_desc( mem_ctx, &global_sid_World, &global_sid_World, NULL, &sd_size); if(!*ppsd) { DEBUG(0,("get_null_nt_acl: Unable to malloc space for security descriptor.\n")); sd_size = 0; } return sd_size; } /**************************************************************************** Reply to query a security descriptor. ****************************************************************************/ static int call_nt_transact_query_security_desc(connection_struct *conn, char *inbuf, char *outbuf, int length, int bufsize, uint16 **ppsetup, uint32 setup_count, char **ppparams, uint32 parameter_count, char **ppdata, uint32 data_count, uint32 max_data_count) { char *params = *ppparams; char *data = *ppdata; prs_struct pd; SEC_DESC *psd = NULL; size_t sd_size; uint32 security_info_wanted; TALLOC_CTX *mem_ctx; files_struct *fsp = NULL; if(parameter_count < 8) { return ERROR_DOS(ERRDOS,ERRbadfunc); } fsp = file_fsp(params,0); if(!fsp) { return ERROR_DOS(ERRDOS,ERRbadfid); } security_info_wanted = IVAL(params,4); DEBUG(3,("call_nt_transact_query_security_desc: file = %s, info_wanted = 0x%x\n", fsp->fsp_name, (unsigned int)security_info_wanted )); params = nttrans_realloc(ppparams, 4); if(params == NULL) { return ERROR_DOS(ERRDOS,ERRnomem); } if ((mem_ctx = talloc_init("call_nt_transact_query_security_desc")) == NULL) { DEBUG(0,("call_nt_transact_query_security_desc: talloc_init failed.\n")); return ERROR_DOS(ERRDOS,ERRnomem); } /* * Get the permissions to return. */ if (!lp_nt_acl_support(SNUM(conn))) { sd_size = get_null_nt_acl(mem_ctx, &psd); } else { sd_size = SMB_VFS_FGET_NT_ACL(fsp, fsp->fh->fd, security_info_wanted, &psd); } if (sd_size == 0) { talloc_destroy(mem_ctx); return(UNIXERROR(ERRDOS,ERRnoaccess)); } DEBUG(3,("call_nt_transact_query_security_desc: sd_size = %lu.\n",(unsigned long)sd_size)); SIVAL(params,0,(uint32)sd_size); if(max_data_count < sd_size) { send_nt_replies(outbuf, bufsize, NT_STATUS_BUFFER_TOO_SMALL, params, 4, *ppdata, 0); talloc_destroy(mem_ctx); return -1; } /* * Allocate the data we will point this at. */ data = nttrans_realloc(ppdata, sd_size); if(data == NULL) { talloc_destroy(mem_ctx); return ERROR_DOS(ERRDOS,ERRnomem); } /* * Init the parse struct we will marshall into. */ prs_init(&pd, 0, mem_ctx, MARSHALL); /* * Setup the prs_struct to point at the memory we just * allocated. */ prs_give_memory( &pd, data, (uint32)sd_size, False); /* * Finally, linearize into the outgoing buffer. */ if(!sec_io_desc( "sd data", &psd, &pd, 1)) { DEBUG(0,("call_nt_transact_query_security_desc: Error in marshalling \ security descriptor.\n")); /* * Return access denied for want of a better error message.. */ talloc_destroy(mem_ctx); return(UNIXERROR(ERRDOS,ERRnoaccess)); } /* * Now we can delete the security descriptor. */ talloc_destroy(mem_ctx); send_nt_replies(outbuf, bufsize, NT_STATUS_OK, params, 4, data, (int)sd_size); return -1; } /**************************************************************************** Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs. ****************************************************************************/ static int call_nt_transact_set_security_desc(connection_struct *conn, char *inbuf, char *outbuf, int length, int bufsize, uint16 **ppsetup, uint32 setup_count, char **ppparams, uint32 parameter_count, char **ppdata, uint32 data_count, uint32 max_data_count) { char *params= *ppparams; char *data = *ppdata; files_struct *fsp = NULL; uint32 security_info_sent = 0; NTSTATUS nt_status; if(parameter_count < 8) { return ERROR_DOS(ERRDOS,ERRbadfunc); } if((fsp = file_fsp(params,0)) == NULL) { return ERROR_DOS(ERRDOS,ERRbadfid); } if(!lp_nt_acl_support(SNUM(conn))) { goto done; } security_info_sent = IVAL(params,4); DEBUG(3,("call_nt_transact_set_security_desc: file = %s, sent 0x%x\n", fsp->fsp_name, (unsigned int)security_info_sent )); if (data_count == 0) { return ERROR_DOS(ERRDOS, ERRnoaccess); } if (!NT_STATUS_IS_OK(nt_status = set_sd( fsp, data, data_count, security_info_sent))) { return ERROR_NT(nt_status); } done: send_nt_replies(outbuf, bufsize, NT_STATUS_OK, NULL, 0, NULL, 0); return -1; } /**************************************************************************** Reply to NT IOCTL ****************************************************************************/ static int call_nt_transact_ioctl(connection_struct *conn, char *inbuf, char *outbuf, int length, int bufsize, uint16 **ppsetup, uint32 setup_count, char **ppparams, uint32 parameter_count, char **ppdata, uint32 data_count, uint32 max_data_count) { uint32 function; uint16 fidnum; files_struct *fsp; uint8 isFSctl; uint8 compfilter; static BOOL logged_message; char *pdata = *ppdata; if (setup_count != 8) { DEBUG(3,("call_nt_transact_ioctl: invalid setup count %d\n", setup_count)); return ERROR_NT(NT_STATUS_NOT_SUPPORTED); } function = IVAL(*ppsetup, 0); fidnum = SVAL(*ppsetup, 4); isFSctl = CVAL(*ppsetup, 6); compfilter = CVAL(*ppsetup, 7); DEBUG(10,("call_nt_transact_ioctl: function[0x%08X] FID[0x%04X] isFSctl[0x%02X] compfilter[0x%02X]\n", function, fidnum, isFSctl, compfilter)); fsp=file_fsp((char *)*ppsetup, 4); /* this check is done in each implemented function case for now because I don't want to break anything... --metze FSP_BELONGS_CONN(fsp,conn);*/ switch (function) { case FSCTL_SET_SPARSE: /* pretend this succeeded - tho strictly we should mark the file sparse (if the local fs supports it) so we can know if we need to pre-allocate or not */ DEBUG(10,("FSCTL_SET_SPARSE: called on FID[0x%04X](but not implemented)\n", fidnum)); send_nt_replies(outbuf, bufsize, NT_STATUS_OK, NULL, 0, NULL, 0); return -1; case FSCTL_0x000900C0: /* pretend this succeeded - don't know what this really is but works ok like this --metze */ DEBUG(10,("FSCTL_0x000900C0: called on FID[0x%04X](but not implemented)\n",fidnum)); send_nt_replies(outbuf, bufsize, NT_STATUS_OK, NULL, 0, NULL, 0); return -1; case FSCTL_GET_REPARSE_POINT: /* pretend this fail - my winXP does it like this * --metze */ DEBUG(10,("FSCTL_GET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum)); send_nt_replies(outbuf, bufsize, NT_STATUS_NOT_A_REPARSE_POINT, NULL, 0, NULL, 0); return -1; case FSCTL_SET_REPARSE_POINT: /* pretend this fail - I'm assuming this because of the FSCTL_GET_REPARSE_POINT case. * --metze */ DEBUG(10,("FSCTL_SET_REPARSE_POINT: called on FID[0x%04X](but not implemented)\n",fidnum)); send_nt_replies(outbuf, bufsize, NT_STATUS_NOT_A_REPARSE_POINT, NULL, 0, NULL, 0); return -1; case FSCTL_GET_SHADOW_COPY_DATA: /* don't know if this name is right...*/ { /* * This is called to retrieve the number of Shadow Copies (a.k.a. snapshots) * and return their volume names. If max_data_count is 16, then it is just * asking for the number of volumes and length of the combined names. * * pdata is the data allocated by our caller, but that uses * total_data_count (which is 0 in our case) rather than max_data_count. * Allocate the correct amount and return the pointer to let * it be deallocated when we return. */ SHADOW_COPY_DATA *shadow_data = NULL; TALLOC_CTX *shadow_mem_ctx = NULL; BOOL labels = False; uint32 labels_data_count = 0; uint32 i; char *cur_pdata; FSP_BELONGS_CONN(fsp,conn); if (max_data_count < 16) { DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) < 16 is invalid!\n", max_data_count)); return ERROR_NT(NT_STATUS_INVALID_PARAMETER); } if (max_data_count > 16) { labels = True; } shadow_mem_ctx = talloc_init("SHADOW_COPY_DATA"); if (shadow_mem_ctx == NULL) { DEBUG(0,("talloc_init(SHADOW_COPY_DATA) failed!\n")); return ERROR_NT(NT_STATUS_NO_MEMORY); } shadow_data = TALLOC_ZERO_P(shadow_mem_ctx,SHADOW_COPY_DATA); if (shadow_data == NULL) { DEBUG(0,("talloc_zero() failed!\n")); talloc_destroy(shadow_mem_ctx); return ERROR_NT(NT_STATUS_NO_MEMORY); } shadow_data->mem_ctx = shadow_mem_ctx; /* * Call the VFS routine to actually do the work. */ if (SMB_VFS_GET_SHADOW_COPY_DATA(fsp, shadow_data, labels)!=0) { talloc_destroy(shadow_data->mem_ctx); if (errno == ENOSYS) { DEBUG(5,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, not supported.\n", conn->connectpath)); return ERROR_NT(NT_STATUS_NOT_SUPPORTED); } else { DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, failed.\n", conn->connectpath)); return ERROR_NT(NT_STATUS_UNSUCCESSFUL); } } labels_data_count = (shadow_data->num_volumes*2*sizeof(SHADOW_COPY_LABEL))+2; if (!labels) { data_count = 16; } else { data_count = 12+labels_data_count+4; } if (max_data_countmem_ctx); return ERROR_NT(NT_STATUS_BUFFER_TOO_SMALL); } pdata = nttrans_realloc(ppdata, data_count); if (pdata == NULL) { talloc_destroy(shadow_data->mem_ctx); return ERROR_NT(NT_STATUS_NO_MEMORY); } cur_pdata = pdata; /* num_volumes 4 bytes */ SIVAL(pdata,0,shadow_data->num_volumes); if (labels) { /* num_labels 4 bytes */ SIVAL(pdata,4,shadow_data->num_volumes); } /* needed_data_count 4 bytes */ SIVAL(pdata,8,labels_data_count); cur_pdata+=12; DEBUG(10,("FSCTL_GET_SHADOW_COPY_DATA: %u volumes for path[%s].\n", shadow_data->num_volumes,fsp->fsp_name)); if (labels && shadow_data->labels) { for (i=0;inum_volumes;i++) { srvstr_push(outbuf, cur_pdata, shadow_data->labels[i], 2*sizeof(SHADOW_COPY_LABEL), STR_UNICODE|STR_TERMINATE); cur_pdata+=2*sizeof(SHADOW_COPY_LABEL); DEBUGADD(10,("Label[%u]: '%s'\n",i,shadow_data->labels[i])); } } talloc_destroy(shadow_data->mem_ctx); send_nt_replies(outbuf, bufsize, NT_STATUS_OK, NULL, 0, pdata, data_count); return -1; } case FSCTL_FIND_FILES_BY_SID: /* I hope this name is right */ { /* pretend this succeeded - * * we have to send back a list with all files owned by this SID * * but I have to check that --metze */ DOM_SID sid; uid_t uid; size_t sid_len = MIN(data_count-4,SID_MAX_SIZE); DEBUG(10,("FSCTL_FIND_FILES_BY_SID: called on FID[0x%04X]\n",fidnum)); FSP_BELONGS_CONN(fsp,conn); /* unknown 4 bytes: this is not the length of the sid :-( */ /*unknown = IVAL(pdata,0);*/ sid_parse(pdata+4,sid_len,&sid); DEBUGADD(10,("for SID: %s\n",sid_string_static(&sid))); if (!sid_to_uid(&sid, &uid)) { DEBUG(0,("sid_to_uid: failed, sid[%s] sid_len[%lu]\n", sid_string_static(&sid),(unsigned long)sid_len)); uid = (-1); } /* we can take a look at the find source :-) * * find ./ -uid $uid -name '*' is what we need here * * * and send 4bytes len and then NULL terminated unicode strings * for each file * * but I don't know how to deal with the paged results * (maybe we can hang the result anywhere in the fsp struct) * * we don't send all files at once * and at the next we should *not* start from the beginning, * so we have to cache the result * * --metze */ /* this works for now... */ send_nt_replies(outbuf, bufsize, NT_STATUS_OK, NULL, 0, NULL, 0); return -1; } default: if (!logged_message) { logged_message = True; /* Only print this once... */ DEBUG(0,("call_nt_transact_ioctl(0x%x): Currently not implemented.\n", function)); } } return ERROR_NT(NT_STATUS_NOT_SUPPORTED); } #ifdef HAVE_SYS_QUOTAS /**************************************************************************** Reply to get user quota ****************************************************************************/ static int call_nt_transact_get_user_quota(connection_struct *conn, char *inbuf, char *outbuf, int length, int bufsize, uint16 **ppsetup, uint32 setup_count, char **ppparams, uint32 parameter_count, char **ppdata, uint32 data_count, uint32 max_data_count) { NTSTATUS nt_status = NT_STATUS_OK; char *params = *ppparams; char *pdata = *ppdata; char *entry; int data_len=0,param_len=0; int qt_len=0; int entry_len = 0; files_struct *fsp = NULL; uint16 level = 0; size_t sid_len; DOM_SID sid; BOOL start_enum = True; SMB_NTQUOTA_STRUCT qt; SMB_NTQUOTA_LIST *tmp_list; SMB_NTQUOTA_HANDLE *qt_handle = NULL; ZERO_STRUCT(qt); /* access check */ if (current_user.ut.uid != 0) { DEBUG(1,("get_user_quota: access_denied service [%s] user [%s]\n", lp_servicename(SNUM(conn)),conn->user)); return ERROR_DOS(ERRDOS,ERRnoaccess); } /* * Ensure minimum number of parameters sent. */ if (parameter_count < 4) { DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count)); return ERROR_DOS(ERRDOS,ERRinvalidparam); } /* maybe we can check the quota_fnum */ fsp = file_fsp(params,0); if (!CHECK_NTQUOTA_HANDLE_OK(fsp,conn)) { DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n")); return ERROR_NT(NT_STATUS_INVALID_HANDLE); } /* the NULL pointer checking for fsp->fake_file_handle->pd * is done by CHECK_NTQUOTA_HANDLE_OK() */ qt_handle = (SMB_NTQUOTA_HANDLE *)fsp->fake_file_handle->pd; level = SVAL(params,2); /* unknown 12 bytes leading in params */ switch (level) { case TRANSACT_GET_USER_QUOTA_LIST_CONTINUE: /* seems that we should continue with the enum here --metze */ if (qt_handle->quota_list!=NULL && qt_handle->tmp_list==NULL) { /* free the list */ free_ntquota_list(&(qt_handle->quota_list)); /* Realloc the size of parameters and data we will return */ param_len = 4; params = nttrans_realloc(ppparams, param_len); if(params == NULL) { return ERROR_DOS(ERRDOS,ERRnomem); } data_len = 0; SIVAL(params,0,data_len); break; } start_enum = False; case TRANSACT_GET_USER_QUOTA_LIST_START: if (qt_handle->quota_list==NULL && qt_handle->tmp_list==NULL) { start_enum = True; } if (start_enum && vfs_get_user_ntquota_list(fsp,&(qt_handle->quota_list))!=0) return ERROR_DOS(ERRSRV,ERRerror); /* Realloc the size of parameters and data we will return */ param_len = 4; params = nttrans_realloc(ppparams, param_len); if(params == NULL) { return ERROR_DOS(ERRDOS,ERRnomem); } /* we should not trust the value in max_data_count*/ max_data_count = MIN(max_data_count,2048); pdata = nttrans_realloc(ppdata, max_data_count);/* should be max data count from client*/ if(pdata == NULL) { return ERROR_DOS(ERRDOS,ERRnomem); } entry = pdata; /* set params Size of returned Quota Data 4 bytes*/ /* but set it later when we know it */ /* for each entry push the data */ if (start_enum) { qt_handle->tmp_list = qt_handle->quota_list; } tmp_list = qt_handle->tmp_list; for (;((tmp_list!=NULL)&&((qt_len +40+SID_MAX_SIZE)next,entry+=entry_len,qt_len+=entry_len) { sid_len = sid_size(&tmp_list->quotas->sid); entry_len = 40 + sid_len; /* nextoffset entry 4 bytes */ SIVAL(entry,0,entry_len); /* then the len of the SID 4 bytes */ SIVAL(entry,4,sid_len); /* unknown data 8 bytes SMB_BIG_UINT */ SBIG_UINT(entry,8,(SMB_BIG_UINT)0); /* this is not 0 in windows...-metze*/ /* the used disk space 8 bytes SMB_BIG_UINT */ SBIG_UINT(entry,16,tmp_list->quotas->usedspace); /* the soft quotas 8 bytes SMB_BIG_UINT */ SBIG_UINT(entry,24,tmp_list->quotas->softlim); /* the hard quotas 8 bytes SMB_BIG_UINT */ SBIG_UINT(entry,32,tmp_list->quotas->hardlim); /* and now the SID */ sid_linearize(entry+40, sid_len, &tmp_list->quotas->sid); } qt_handle->tmp_list = tmp_list; /* overwrite the offset of the last entry */ SIVAL(entry-entry_len,0,0); data_len = 4+qt_len; /* overwrite the params quota_data_len */ SIVAL(params,0,data_len); break; case TRANSACT_GET_USER_QUOTA_FOR_SID: /* unknown 4 bytes IVAL(pdata,0) */ if (data_count < 8) { DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %d bytes data\n",data_count,8)); return ERROR_DOS(ERRDOS,ERRunknownlevel); } sid_len = IVAL(pdata,4); /* Ensure this is less than 1mb. */ if (sid_len > (1024*1024)) { return ERROR_DOS(ERRDOS,ERRnomem); } if (data_count < 8+sid_len) { DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: requires %d >= %lu bytes data\n",data_count,(unsigned long)(8+sid_len))); return ERROR_DOS(ERRDOS,ERRunknownlevel); } data_len = 4+40+sid_len; if (max_data_count < data_len) { DEBUG(0,("TRANSACT_GET_USER_QUOTA_FOR_SID: max_data_count(%d) < data_len(%d)\n", max_data_count, data_len)); param_len = 4; SIVAL(params,0,data_len); data_len = 0; nt_status = NT_STATUS_BUFFER_TOO_SMALL; break; } sid_parse(pdata+8,sid_len,&sid); if (vfs_get_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) { ZERO_STRUCT(qt); /* * we have to return zero's in all fields * instead of returning an error here * --metze */ } /* Realloc the size of parameters and data we will return */ param_len = 4; params = nttrans_realloc(ppparams, param_len); if(params == NULL) { return ERROR_DOS(ERRDOS,ERRnomem); } pdata = nttrans_realloc(ppdata, data_len); if(pdata == NULL) { return ERROR_DOS(ERRDOS,ERRnomem); } entry = pdata; /* set params Size of returned Quota Data 4 bytes*/ SIVAL(params,0,data_len); /* nextoffset entry 4 bytes */ SIVAL(entry,0,0); /* then the len of the SID 4 bytes */ SIVAL(entry,4,sid_len); /* unknown data 8 bytes SMB_BIG_UINT */ SBIG_UINT(entry,8,(SMB_BIG_UINT)0); /* this is not 0 in windows...-mezte*/ /* the used disk space 8 bytes SMB_BIG_UINT */ SBIG_UINT(entry,16,qt.usedspace); /* the soft quotas 8 bytes SMB_BIG_UINT */ SBIG_UINT(entry,24,qt.softlim); /* the hard quotas 8 bytes SMB_BIG_UINT */ SBIG_UINT(entry,32,qt.hardlim); /* and now the SID */ sid_linearize(entry+40, sid_len, &sid); break; default: DEBUG(0,("do_nt_transact_get_user_quota: fnum %d unknown level 0x%04hX\n",fsp->fnum,level)); return ERROR_DOS(ERRSRV,ERRerror); break; } send_nt_replies(outbuf, bufsize, nt_status, params, param_len, pdata, data_len); return -1; } /**************************************************************************** Reply to set user quota ****************************************************************************/ static int call_nt_transact_set_user_quota(connection_struct *conn, char *inbuf, char *outbuf, int length, int bufsize, uint16 **ppsetup, uint32 setup_count, char **ppparams, uint32 parameter_count, char **ppdata, uint32 data_count, uint32 max_data_count) { char *params = *ppparams; char *pdata = *ppdata; int data_len=0,param_len=0; SMB_NTQUOTA_STRUCT qt; size_t sid_len; DOM_SID sid; files_struct *fsp = NULL; ZERO_STRUCT(qt); /* access check */ if (current_user.ut.uid != 0) { DEBUG(1,("set_user_quota: access_denied service [%s] user [%s]\n", lp_servicename(SNUM(conn)),conn->user)); return ERROR_DOS(ERRDOS,ERRnoaccess); } /* * Ensure minimum number of parameters sent. */ if (parameter_count < 2) { DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count)); return ERROR_DOS(ERRDOS,ERRinvalidparam); } /* maybe we can check the quota_fnum */ fsp = file_fsp(params,0); if (!CHECK_NTQUOTA_HANDLE_OK(fsp,conn)) { DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n")); return ERROR_NT(NT_STATUS_INVALID_HANDLE); } if (data_count < 40) { DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40)); return ERROR_DOS(ERRDOS,ERRunknownlevel); } /* offset to next quota record. * 4 bytes IVAL(pdata,0) * unused here... */ /* sid len */ sid_len = IVAL(pdata,4); if (data_count < 40+sid_len) { DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %lu bytes data\n",data_count,(unsigned long)40+sid_len)); return ERROR_DOS(ERRDOS,ERRunknownlevel); } /* unknown 8 bytes in pdata * maybe its the change time in NTTIME */ /* the used space 8 bytes (SMB_BIG_UINT)*/ qt.usedspace = (SMB_BIG_UINT)IVAL(pdata,16); #ifdef LARGE_SMB_OFF_T qt.usedspace |= (((SMB_BIG_UINT)IVAL(pdata,20)) << 32); #else /* LARGE_SMB_OFF_T */ if ((IVAL(pdata,20) != 0)&& ((qt.usedspace != 0xFFFFFFFF)|| (IVAL(pdata,20)!=0xFFFFFFFF))) { /* more than 32 bits? */ return ERROR_DOS(ERRDOS,ERRunknownlevel); } #endif /* LARGE_SMB_OFF_T */ /* the soft quotas 8 bytes (SMB_BIG_UINT)*/ qt.softlim = (SMB_BIG_UINT)IVAL(pdata,24); #ifdef LARGE_SMB_OFF_T qt.softlim |= (((SMB_BIG_UINT)IVAL(pdata,28)) << 32); #else /* LARGE_SMB_OFF_T */ if ((IVAL(pdata,28) != 0)&& ((qt.softlim != 0xFFFFFFFF)|| (IVAL(pdata,28)!=0xFFFFFFFF))) { /* more than 32 bits? */ return ERROR_DOS(ERRDOS,ERRunknownlevel); } #endif /* LARGE_SMB_OFF_T */ /* the hard quotas 8 bytes (SMB_BIG_UINT)*/ qt.hardlim = (SMB_BIG_UINT)IVAL(pdata,32); #ifdef LARGE_SMB_OFF_T qt.hardlim |= (((SMB_BIG_UINT)IVAL(pdata,36)) << 32); #else /* LARGE_SMB_OFF_T */ if ((IVAL(pdata,36) != 0)&& ((qt.hardlim != 0xFFFFFFFF)|| (IVAL(pdata,36)!=0xFFFFFFFF))) { /* more than 32 bits? */ return ERROR_DOS(ERRDOS,ERRunknownlevel); } #endif /* LARGE_SMB_OFF_T */ sid_parse(pdata+40,sid_len,&sid); DEBUGADD(8,("SID: %s\n",sid_string_static(&sid))); /* 44 unknown bytes left... */ if (vfs_set_ntquota(fsp, SMB_USER_QUOTA_TYPE, &sid, &qt)!=0) { return ERROR_DOS(ERRSRV,ERRerror); } send_nt_replies(outbuf, bufsize, NT_STATUS_OK, params, param_len, pdata, data_len); return -1; } #endif /* HAVE_SYS_QUOTAS */ static int handle_nttrans(connection_struct *conn, struct trans_state *state, char *inbuf, char *outbuf, int size, int bufsize) { int outsize; if (Protocol >= PROTOCOL_NT1) { SSVAL(outbuf,smb_flg2,SVAL(outbuf,smb_flg2) | 0x40); /* IS_LONG_NAME */ } /* Now we must call the relevant NT_TRANS function */ switch(state->call) { case NT_TRANSACT_CREATE: { START_PROFILE(NT_transact_create); outsize = call_nt_transact_create(conn, inbuf, outbuf, size, bufsize, &state->setup, state->setup_count, &state->param, state->total_param, &state->data, state->total_data, state->max_data_return); END_PROFILE(NT_transact_create); break; } case NT_TRANSACT_IOCTL: { START_PROFILE(NT_transact_ioctl); outsize = call_nt_transact_ioctl(conn, inbuf, outbuf, size, bufsize, &state->setup, state->setup_count, &state->param, state->total_param, &state->data, state->total_data, state->max_data_return); END_PROFILE(NT_transact_ioctl); break; } case NT_TRANSACT_SET_SECURITY_DESC: { START_PROFILE(NT_transact_set_security_desc); outsize = call_nt_transact_set_security_desc(conn, inbuf, outbuf, size, bufsize, &state->setup, state->setup_count, &state->param, state->total_param, &state->data, state->total_data, state->max_data_return); END_PROFILE(NT_transact_set_security_desc); break; } case NT_TRANSACT_NOTIFY_CHANGE: { START_PROFILE(NT_transact_notify_change); outsize = call_nt_transact_notify_change( conn, inbuf, outbuf, size, bufsize, &state->setup, state->setup_count, &state->param, state->total_param, &state->data, state->total_data, state->max_data_return, state->max_param_return); END_PROFILE(NT_transact_notify_change); break; } case NT_TRANSACT_RENAME: { START_PROFILE(NT_transact_rename); outsize = call_nt_transact_rename(conn, inbuf, outbuf, size, bufsize, &state->setup, state->setup_count, &state->param, state->total_param, &state->data, state->total_data, state->max_data_return); END_PROFILE(NT_transact_rename); break; } case NT_TRANSACT_QUERY_SECURITY_DESC: { START_PROFILE(NT_transact_query_security_desc); outsize = call_nt_transact_query_security_desc(conn, inbuf, outbuf, size, bufsize, &state->setup, state->setup_count, &state->param, state->total_param, &state->data, state->total_data, state->max_data_return); END_PROFILE(NT_transact_query_security_desc); break; } #ifdef HAVE_SYS_QUOTAS case NT_TRANSACT_GET_USER_QUOTA: { START_PROFILE(NT_transact_get_user_quota); outsize = call_nt_transact_get_user_quota(conn, inbuf, outbuf, size, bufsize, &state->setup, state->setup_count, &state->param, state->total_param, &state->data, state->total_data, state->max_data_return); END_PROFILE(NT_transact_get_user_quota); break; } case NT_TRANSACT_SET_USER_QUOTA: { START_PROFILE(NT_transact_set_user_quota); outsize = call_nt_transact_set_user_quota(conn, inbuf, outbuf, size, bufsize, &state->setup, state->setup_count, &state->param, state->total_param, &state->data, state->total_data, state->max_data_return); END_PROFILE(NT_transact_set_user_quota); break; } #endif /* HAVE_SYS_QUOTAS */ default: /* Error in request */ DEBUG(0,("reply_nttrans: Unknown request %d in nttrans call\n", state->call)); return ERROR_DOS(ERRSRV,ERRerror); } return outsize; } /**************************************************************************** Reply to a SMBNTtrans. ****************************************************************************/ int reply_nttrans(connection_struct *conn, char *inbuf,char *outbuf,int size,int bufsize) { int outsize = 0; uint32 pscnt = IVAL(inbuf,smb_nt_ParameterCount); uint32 psoff = IVAL(inbuf,smb_nt_ParameterOffset); uint32 dscnt = IVAL(inbuf,smb_nt_DataCount); uint32 dsoff = IVAL(inbuf,smb_nt_DataOffset); uint16 function_code = SVAL( inbuf, smb_nt_Function); NTSTATUS result; struct trans_state *state; START_PROFILE(SMBnttrans); if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) { END_PROFILE(SMBnttrans); return ERROR_DOS(ERRSRV,ERRaccess); } result = allow_new_trans(conn->pending_trans, SVAL(inbuf, smb_mid)); if (!NT_STATUS_IS_OK(result)) { DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result))); END_PROFILE(SMBnttrans); return ERROR_NT(result); } if ((state = TALLOC_P(conn->mem_ctx, struct trans_state)) == NULL) { END_PROFILE(SMBnttrans); return ERROR_DOS(ERRSRV,ERRaccess); } state->cmd = SMBnttrans; state->mid = SVAL(inbuf,smb_mid); state->vuid = SVAL(inbuf,smb_uid); state->total_data = IVAL(inbuf, smb_nt_TotalDataCount); state->data = NULL; state->total_param = IVAL(inbuf, smb_nt_TotalParameterCount); state->param = NULL; state->max_data_return = IVAL(inbuf,smb_nt_MaxDataCount); state->max_param_return = IVAL(inbuf,smb_nt_MaxParameterCount); /* setup count is in *words* */ state->setup_count = 2*CVAL(inbuf,smb_nt_SetupCount); state->setup = NULL; state->call = function_code; /* * All nttrans messages we handle have smb_wct == 19 + * state->setup_count. Ensure this is so as a sanity check. */ if(CVAL(inbuf, smb_wct) != 19 + (state->setup_count/2)) { DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n", CVAL(inbuf, smb_wct), 19 + (state->setup_count/2))); goto bad_param; } /* Don't allow more than 128mb for each value. */ if ((state->total_data > (1024*1024*128)) || (state->total_param > (1024*1024*128))) { END_PROFILE(SMBnttrans); return ERROR_DOS(ERRDOS,ERRnomem); } if ((dscnt > state->total_data) || (pscnt > state->total_param)) goto bad_param; if (state->total_data) { /* Can't use talloc here, the core routines do realloc on the * params and data. */ if ((state->data = (char *)SMB_MALLOC(state->total_data)) == NULL) { DEBUG(0,("reply_nttrans: data malloc fail for %u " "bytes !\n", (unsigned int)state->total_data)); TALLOC_FREE(state); END_PROFILE(SMBnttrans); return(ERROR_DOS(ERRDOS,ERRnomem)); } if ((dsoff+dscnt < dsoff) || (dsoff+dscnt < dscnt)) goto bad_param; if ((smb_base(inbuf)+dsoff+dscnt > inbuf + size) || (smb_base(inbuf)+dsoff+dscnt < smb_base(inbuf))) goto bad_param; memcpy(state->data,smb_base(inbuf)+dsoff,dscnt); } if (state->total_param) { /* Can't use talloc here, the core routines do realloc on the * params and data. */ if ((state->param = (char *)SMB_MALLOC(state->total_param)) == NULL) { DEBUG(0,("reply_nttrans: param malloc fail for %u " "bytes !\n", (unsigned int)state->total_param)); SAFE_FREE(state->data); TALLOC_FREE(state); END_PROFILE(SMBnttrans); return(ERROR_DOS(ERRDOS,ERRnomem)); } if ((psoff+pscnt < psoff) || (psoff+pscnt < pscnt)) goto bad_param; if ((smb_base(inbuf)+psoff+pscnt > inbuf + size) || (smb_base(inbuf)+psoff+pscnt < smb_base(inbuf))) goto bad_param; memcpy(state->param,smb_base(inbuf)+psoff,pscnt); } state->received_data = dscnt; state->received_param = pscnt; if(state->setup_count > 0) { DEBUG(10,("reply_nttrans: state->setup_count = %d\n", state->setup_count)); state->setup = (uint16 *)TALLOC(state, state->setup_count); if (state->setup == NULL) { DEBUG(0,("reply_nttrans : Out of memory\n")); SAFE_FREE(state->data); SAFE_FREE(state->param); TALLOC_FREE(state); END_PROFILE(SMBnttrans); return ERROR_DOS(ERRDOS,ERRnomem); } if ((smb_nt_SetupStart + state->setup_count < smb_nt_SetupStart) || (smb_nt_SetupStart + state->setup_count < state->setup_count)) { goto bad_param; } if (smb_nt_SetupStart + state->setup_count > size) { goto bad_param; } memcpy( state->setup, &inbuf[smb_nt_SetupStart], state->setup_count); dump_data(10, (char *)state->setup, state->setup_count); } if ((state->received_data == state->total_data) && (state->received_param == state->total_param)) { outsize = handle_nttrans(conn, state, inbuf, outbuf, size, bufsize); SAFE_FREE(state->param); SAFE_FREE(state->data); TALLOC_FREE(state); END_PROFILE(SMBnttrans); return outsize; } DLIST_ADD(conn->pending_trans, state); /* We need to send an interim response then receive the rest of the parameter/data bytes */ outsize = set_message(outbuf,0,0,False); show_msg(outbuf); END_PROFILE(SMBnttrans); return outsize; bad_param: DEBUG(0,("reply_nttrans: invalid trans parameters\n")); SAFE_FREE(state->data); SAFE_FREE(state->param); TALLOC_FREE(state); END_PROFILE(SMBnttrans); return ERROR_NT(NT_STATUS_INVALID_PARAMETER); } /**************************************************************************** Reply to a SMBnttranss ****************************************************************************/ int reply_nttranss(connection_struct *conn, char *inbuf,char *outbuf, int size,int bufsize) { int outsize = 0; unsigned int pcnt,poff,dcnt,doff,pdisp,ddisp; struct trans_state *state; START_PROFILE(SMBnttranss); show_msg(inbuf); for (state = conn->pending_trans; state != NULL; state = state->next) { if (state->mid == SVAL(inbuf,smb_mid)) { break; } } if ((state == NULL) || (state->cmd != SMBnttrans)) { END_PROFILE(SMBnttranss); return ERROR_NT(NT_STATUS_INVALID_PARAMETER); } /* Revise state->total_param and state->total_data in case they have changed downwards */ if (IVAL(inbuf, smb_nts_TotalParameterCount) < state->total_param) { state->total_param = IVAL(inbuf, smb_nts_TotalParameterCount); } if (IVAL(inbuf, smb_nts_TotalDataCount) < state->total_data) { state->total_data = IVAL(inbuf, smb_nts_TotalDataCount); } pcnt = IVAL(inbuf,smb_nts_ParameterCount); poff = IVAL(inbuf, smb_nts_ParameterOffset); pdisp = IVAL(inbuf, smb_nts_ParameterDisplacement); dcnt = IVAL(inbuf, smb_nts_DataCount); ddisp = IVAL(inbuf, smb_nts_DataDisplacement); doff = IVAL(inbuf, smb_nts_DataOffset); state->received_param += pcnt; state->received_data += dcnt; if ((state->received_data > state->total_data) || (state->received_param > state->total_param)) goto bad_param; if (pcnt) { if (pdisp+pcnt > state->total_param) goto bad_param; if ((pdisp+pcnt < pdisp) || (pdisp+pcnt < pcnt)) goto bad_param; if (pdisp > state->total_param) goto bad_param; if ((smb_base(inbuf) + poff + pcnt > inbuf + size) || (smb_base(inbuf) + poff + pcnt < smb_base(inbuf))) goto bad_param; if (state->param + pdisp < state->param) goto bad_param; memcpy(state->param+pdisp,smb_base(inbuf)+poff, pcnt); } if (dcnt) { if (ddisp+dcnt > state->total_data) goto bad_param; if ((ddisp+dcnt < ddisp) || (ddisp+dcnt < dcnt)) goto bad_param; if (ddisp > state->total_data) goto bad_param; if ((smb_base(inbuf) + doff + dcnt > inbuf + size) || (smb_base(inbuf) + doff + dcnt < smb_base(inbuf))) goto bad_param; if (state->data + ddisp < state->data) goto bad_param; memcpy(state->data+ddisp, smb_base(inbuf)+doff, dcnt); } if ((state->received_param < state->total_param) || (state->received_data < state->total_data)) { END_PROFILE(SMBnttranss); return -1; } /* construct_reply_common has done us the favor to pre-fill the * command field with SMBnttranss which is wrong :-) */ SCVAL(outbuf,smb_com,SMBnttrans); outsize = handle_nttrans(conn, state, inbuf, outbuf, size, bufsize); DLIST_REMOVE(conn->pending_trans, state); SAFE_FREE(state->data); SAFE_FREE(state->param); TALLOC_FREE(state); if (outsize == 0) { END_PROFILE(SMBnttranss); return(ERROR_DOS(ERRSRV,ERRnosupport)); } END_PROFILE(SMBnttranss); return(outsize); bad_param: DEBUG(0,("reply_nttranss: invalid trans parameters\n")); DLIST_REMOVE(conn->pending_trans, state); SAFE_FREE(state->data); SAFE_FREE(state->param); TALLOC_FREE(state); END_PROFILE(SMBnttranss); return ERROR_NT(NT_STATUS_INVALID_PARAMETER); }