/* Unix SMB/Netbios implementation. Version 1.9. SMB NT transaction handling Copyright (C) Jeremy Allison 1994-1998 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 DEBUGLEVEL; extern int Protocol; extern int smb_read_error; extern int global_oplock_break; extern BOOL case_sensitive; extern BOOL case_preserve; extern BOOL short_case_preserve; static char *known_nt_pipes[] = { "\\LANMAN", "\\srvsvc", "\\samr", "\\wkssvc", "\\NETLOGON", "\\ntlsa", "\\ntsvcs", "\\lsass", "\\lsarpc", "\\winreg", "\\spoolss", #ifdef WITH_MSDFS "\\netdfs", #endif NULL }; /* Map generic permissions to file object specific permissions */ struct generic_mapping file_generic_mapping = { FILE_GENERIC_READ, FILE_GENERIC_WRITE, FILE_GENERIC_EXECUTE, FILE_GENERIC_ALL }; /**************************************************************************** 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. ****************************************************************************/ static int send_nt_replies(char *inbuf, char *outbuf, int bufsize, uint32 nt_error, char *params, int paramsize, char *pdata, int datasize) { extern int max_send; 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_error != 0) { /* NT Error. */ SSVAL(outbuf,smb_flg2, SVAL(outbuf,smb_flg2) | FLAGS2_32_BIT_ERROR_CODES); ERROR(0,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) { if (!send_smb(smbd_server_fd(),outbuf)) exit_server("send_nt_replies: send_smb failed.\n"); 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 */ if (!send_smb(smbd_server_fd(),outbuf)) exit_server("send_nt_replies: send_smb failed.\n"); 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; } /**************************************************************************** Save case statics. ****************************************************************************/ static BOOL saved_case_sensitive; static BOOL saved_case_preserve; static BOOL saved_short_case_preserve; /**************************************************************************** Save case semantics. ****************************************************************************/ static void set_posix_case_semantics(uint32 file_attributes) { if(!(file_attributes & FILE_FLAG_POSIX_SEMANTICS)) return; saved_case_sensitive = case_sensitive; saved_case_preserve = case_preserve; saved_short_case_preserve = short_case_preserve; /* Set to POSIX. */ case_sensitive = True; case_preserve = True; short_case_preserve = True; } /**************************************************************************** Restore case semantics. ****************************************************************************/ static void restore_case_semantics(uint32 file_attributes) { if(!(file_attributes & FILE_FLAG_POSIX_SEMANTICS)) return; case_sensitive = saved_case_sensitive; case_preserve = saved_case_preserve; short_case_preserve = saved_short_case_preserve; } /**************************************************************************** Utility function to map create disposition. ****************************************************************************/ static int map_create_disposition( uint32 create_disposition) { int ret; switch( create_disposition ) { case FILE_CREATE: /* create if not exist, fail if exist */ ret = (FILE_CREATE_IF_NOT_EXIST|FILE_EXISTS_FAIL); break; case FILE_SUPERSEDE: case FILE_OVERWRITE_IF: /* create if not exist, trunc if exist */ ret = (FILE_CREATE_IF_NOT_EXIST|FILE_EXISTS_TRUNCATE); break; case FILE_OPEN: /* fail if not exist, open if exists */ ret = (FILE_FAIL_IF_NOT_EXIST|FILE_EXISTS_OPEN); break; case FILE_OPEN_IF: /* create if not exist, open if exists */ ret = (FILE_CREATE_IF_NOT_EXIST|FILE_EXISTS_OPEN); break; case FILE_OVERWRITE: /* fail if not exist, truncate if exists */ ret = (FILE_FAIL_IF_NOT_EXIST|FILE_EXISTS_TRUNCATE); break; default: DEBUG(0,("map_create_disposition: Incorrect value for create_disposition = %d\n", create_disposition )); return -1; } DEBUG(10,("map_create_disposition: Mapped create_disposition %lx to %x\n", (unsigned long)create_disposition, ret )); return ret; } /**************************************************************************** Utility function to map share modes. ****************************************************************************/ static int map_share_mode( BOOL *pstat_open_only, char *fname, uint32 desired_access, uint32 share_access, uint32 file_attributes) { int smb_open_mode = -1; *pstat_open_only = False; /* * Convert GENERIC bits to specific bits. */ se_map_generic(&desired_access, &file_generic_mapping); switch( desired_access & (FILE_READ_DATA|FILE_WRITE_DATA|FILE_APPEND_DATA) ) { case FILE_READ_DATA: smb_open_mode = DOS_OPEN_RDONLY; break; case FILE_WRITE_DATA: case FILE_APPEND_DATA: case FILE_WRITE_DATA|FILE_APPEND_DATA: smb_open_mode = DOS_OPEN_WRONLY; break; case FILE_READ_DATA|FILE_WRITE_DATA: case FILE_READ_DATA|FILE_WRITE_DATA|FILE_APPEND_DATA: case FILE_READ_DATA|FILE_APPEND_DATA: smb_open_mode = DOS_OPEN_RDWR; break; } /* * NB. For DELETE_ACCESS we should really check the * directory permissions, as that is what controls * delete, and for WRITE_DAC_ACCESS we should really * check the ownership, as that is what controls the * chmod. Note that this is *NOT* a security hole (this * note is for you, Andrew) as we are not *allowing* * the access at this point, the actual unlink or * chown or chmod call would do this. We are just helping * clients out by telling them if they have a hope * of any of this succeeding. POSIX acls may still * deny the real call. JRA. */ if (smb_open_mode == -1) { if(desired_access == WRITE_DAC_ACCESS || desired_access == READ_CONTROL_ACCESS) *pstat_open_only = True; if(desired_access & (DELETE_ACCESS|WRITE_DAC_ACCESS|WRITE_OWNER_ACCESS| FILE_EXECUTE|FILE_READ_ATTRIBUTES| FILE_READ_EA|FILE_WRITE_EA|SYSTEM_SECURITY_ACCESS| FILE_WRITE_ATTRIBUTES|READ_CONTROL_ACCESS)) { smb_open_mode = DOS_OPEN_RDONLY; } else if(desired_access == 0) { /* * JRA - NT seems to sometimes send desired_access as zero. play it safe * and map to a stat open. */ *pstat_open_only = True; smb_open_mode = DOS_OPEN_RDONLY; } else { DEBUG(0,("map_share_mode: Incorrect value %lx for desired_access to file %s\n", (unsigned long)desired_access, fname)); return -1; } } /* * Set the special bit that means allow share delete. * This is held outside the normal share mode bits at 1<<15. * JRA. */ if(share_access & FILE_SHARE_DELETE) { smb_open_mode |= ALLOW_SHARE_DELETE; DEBUG(10,("map_share_mode: FILE_SHARE_DELETE requested. open_mode = %x\n", smb_open_mode)); } /* * We need to store the intent to open for Delete. This * is what determines if a delete on close flag can be set. * This is the wrong way (and place) to store this, but for 2.2 this * is the only practical way. JRA. */ if(desired_access & DELETE_ACCESS) { smb_open_mode |= DELETE_ACCESS_REQUESTED; DEBUG(10,("map_share_mode: DELETE_ACCESS requested. open_mode = %x\n", smb_open_mode)); } /* Add in the requested share mode. */ switch( share_access & (FILE_SHARE_READ|FILE_SHARE_WRITE)) { case FILE_SHARE_READ: smb_open_mode |= SET_DENY_MODE(DENY_WRITE); break; case FILE_SHARE_WRITE: smb_open_mode |= SET_DENY_MODE(DENY_READ); break; case (FILE_SHARE_READ|FILE_SHARE_WRITE): smb_open_mode |= SET_DENY_MODE(DENY_NONE); break; case FILE_SHARE_NONE: smb_open_mode |= SET_DENY_MODE(DENY_ALL); break; } /* * Handle an O_SYNC request. */ if(file_attributes & FILE_FLAG_WRITE_THROUGH) smb_open_mode |= FILE_SYNC_OPENMODE; DEBUG(10,("map_share_mode: Mapped desired access %lx, share access %lx, file attributes %lx \ to open_mode %x\n", (unsigned long)desired_access, (unsigned long)share_access, (unsigned long)file_attributes, smb_open_mode )); return smb_open_mode; } #if 0 /* * This is a *disgusting* hack. * This is *so* bad that even I'm embarrassed (and I * have no shame). Here's the deal : * Until we get the correct SPOOLSS code into smbd * then when we're running with NT SMB support then * NT makes this call with a level of zero, and then * immediately follows it with an open request to * the \\SRVSVC pipe. If we allow that open to * succeed then NT barfs when it cannot open the * \\SPOOLSS pipe immediately after and continually * whines saying "Printer name is invalid" forever * after. If we cause *JUST THIS NEXT OPEN* of \\SRVSVC * to fail, then NT downgrades to using the downlevel code * and everything works as well as before. I hate * myself for adding this code.... JRA. * * The HACK_FAIL_TIME define allows only a 2 * second window for this to occur, just in * case... */ static BOOL fail_next_srvsvc = False; static time_t fail_time; #define HACK_FAIL_TIME 2 /* In seconds. */ void fail_next_srvsvc_open(void) { /* Check client is WinNT proper; Win2K doesn't like Jeremy's hack - matty */ if (get_remote_arch() != RA_WINNT) return; fail_next_srvsvc = True; fail_time = time(NULL); DEBUG(10,("fail_next_srvsvc_open: setting up timeout close of \\srvsvc pipe for print fix.\n")); } /* * HACK alert.... see above - JRA. */ BOOL should_fail_next_srvsvc_open(const char *pipename) { DEBUG(10,("should_fail_next_srvsvc_open: fail = %d, pipe = %s\n", (int)fail_next_srvsvc, pipename)); if(fail_next_srvsvc && (time(NULL) > fail_time + HACK_FAIL_TIME)) { fail_next_srvsvc = False; fail_time = (time_t)0; DEBUG(10,("should_fail_next_srvsvc_open: End of timeout close of \\srvsvc pipe for print fix.\n")); } if(fail_next_srvsvc && strequal(pipename, "srvsvc")) { fail_next_srvsvc = False; DEBUG(10,("should_fail_next_srvsvc_open: Deliberately failing open of \\srvsvc pipe for print fix.\n")); return True; } return False; } #endif /**************************************************************************** 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) { pipes_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. */ for( i = 0; known_nt_pipes[i]; i++ ) if( strequal(fname,known_nt_pipes[i])) break; if ( known_nt_pipes[i] == NULL ) return(ERROR(ERRSRV,ERRaccess)); /* Strip \\ off the name. */ fname++; #if 0 if(should_fail_next_srvsvc_open(fname)) return (ERROR(ERRSRV,ERRaccess)); #endif DEBUG(3,("nt_open_pipe: Known pipe %s opening.\n", fname)); p = open_rpc_pipe_p(fname, conn, vuid); if (!p) return(ERROR(ERRSRV,ERRnofids)); *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; srvstr_pull(inbuf, fname, smb_buf(inbuf), sizeof(fname), -1, STR_TERMINATE); if ((ret = nt_open_pipe(fname, conn, inbuf, outbuf, &pnum)) != 0) return ret; /* * Deal with pipe return. */ 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); /* ? */ 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. ****************************************************************************/ 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 desired_access = IVAL(inbuf,smb_ntcreate_DesiredAccess); uint32 file_attributes = IVAL(inbuf,smb_ntcreate_FileAttributes); 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); int smb_ofun; int smb_open_mode; int smb_attr = (file_attributes & SAMBA_ATTRIBUTES_MASK); /* Breakout the oplock request bits so we can set the reply bits separately. */ int oplock_request = 0; mode_t unixmode; int fmode=0,rmode=0; SMB_OFF_T file_len = 0; SMB_STRUCT_STAT sbuf; int smb_action = 0; BOOL bad_path = False; files_struct *fsp=NULL; char *p = NULL; BOOL stat_open_only = False; time_t c_time; START_PROFILE(SMBntcreateX); /* 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(ERRDOS,ERRbadaccess)); } } /* * We need to construct the open_and_X ofun value from the * NT values, as that's what our code is structured to accept. */ if((smb_ofun = map_create_disposition( create_disposition )) == -1) { END_PROFILE(SMBntcreateX); return(ERROR(ERRDOS,ERRbadaccess)); } /* * Get the file name. */ if(root_dir_fid != 0) { /* * This filename is relative to a directory fid. */ files_struct *dir_fsp = file_fsp(inbuf,smb_ntcreate_RootDirectoryFid); size_t dir_name_len; if(!dir_fsp) { END_PROFILE(SMBntcreateX); return(ERROR(ERRDOS,ERRbadfid)); } if(!dir_fsp->is_directory) { /* * Check to see if this is a mac fork of some kind. */ srvstr_pull(inbuf, fname, smb_buf(inbuf), sizeof(fname), -1, STR_TERMINATE); if( strchr(fname, ':')) { SSVAL(outbuf, smb_flg2, SVAL(outbuf,smb_flg2) | FLAGS2_32_BIT_ERROR_CODES); END_PROFILE(SMBntcreateX); return(ERROR(0, NT_STATUS_OBJECT_PATH_NOT_FOUND)); } END_PROFILE(SMBntcreateX); return(ERROR(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_pull(inbuf, &fname[dir_name_len], smb_buf(inbuf), sizeof(fname)-dir_name_len, -1, STR_TERMINATE); } else { srvstr_pull(inbuf, fname, smb_buf(inbuf), sizeof(fname), -1, STR_TERMINATE); } /* * Now contruct the smb_open_mode value from the filename, * desired access and the share access. */ RESOLVE_DFSPATH(fname, conn, inbuf, outbuf); if((smb_open_mode = map_share_mode(&stat_open_only, fname, desired_access, share_access, file_attributes)) == -1) { END_PROFILE(SMBntcreateX); return(ERROR(ERRDOS,ERRbadaccess)); } oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0; oplock_request |= (flags & REQUEST_BATCH_OPLOCK) ? BATCH_OPLOCK : 0; /* * Ordinary file or directory. */ /* * Check if POSIX semantics are wanted. */ set_posix_case_semantics(file_attributes); unix_convert(fname,conn,0,&bad_path,&sbuf); unixmode = unix_mode(conn,smb_attr | aARCH, fname); /* * If it's a request for a directory open, deal with it separately. */ if(create_options & FILE_DIRECTORY_FILE) { oplock_request = 0; fsp = open_directory(conn, fname, &sbuf, smb_ofun, unixmode, &smb_action); restore_case_semantics(file_attributes); if(!fsp) { if((errno == ENOENT) && bad_path) { unix_ERR_class = ERRDOS; unix_ERR_code = ERRbadpath; } END_PROFILE(SMBntcreateX); return(UNIXERROR(ERRDOS,ERRnoaccess)); } } 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. */ fsp = open_file_shared(conn,fname,&sbuf,smb_open_mode, smb_ofun,unixmode, oplock_request,&rmode,&smb_action); if (!fsp) { /* 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(errno == EISDIR) { /* * Fail the open if it was explicitly a non-directory file. */ if (create_options & FILE_NON_DIRECTORY_FILE) { restore_case_semantics(file_attributes); SSVAL(outbuf, smb_flg2, SVAL(outbuf,smb_flg2) | FLAGS2_32_BIT_ERROR_CODES); END_PROFILE(SMBntcreateX); return(ERROR(0, NT_STATUS_FILE_IS_A_DIRECTORY)); } oplock_request = 0; fsp = open_directory(conn, fname, &sbuf, smb_ofun, unixmode, &smb_action); if(!fsp) { restore_case_semantics(file_attributes); if((errno == ENOENT) && bad_path) { unix_ERR_class = ERRDOS; unix_ERR_code = ERRbadpath; } END_PROFILE(SMBntcreateX); return(UNIXERROR(ERRDOS,ERRnoaccess)); } #ifdef EROFS } else if (((errno == EACCES) || (errno == EROFS)) && stat_open_only) { #else /* !EROFS */ } else if (errno == EACCES && stat_open_only) { #endif /* * We couldn't open normally and all we want * are the permissions. Try and do a stat open. */ oplock_request = 0; fsp = open_file_stat(conn,fname,&sbuf,smb_open_mode,&smb_action); if(!fsp) { restore_case_semantics(file_attributes); END_PROFILE(SMBntcreateX); return(UNIXERROR(ERRDOS,ERRnoaccess)); } } else { if((errno == ENOENT) && bad_path) { unix_ERR_class = ERRDOS; unix_ERR_code = ERRbadpath; } restore_case_semantics(file_attributes); END_PROFILE(SMBntcreateX); return(UNIXERROR(ERRDOS,ERRnoaccess)); } } } restore_case_semantics(file_attributes); file_len = sbuf.st_size; fmode = dos_mode(conn,fname,&sbuf); if(fmode == 0) fmode = FILE_ATTRIBUTE_NORMAL; if (!fsp->is_directory && (fmode & aDIR)) { close_file(fsp,False); END_PROFILE(SMBntcreateX); return(ERROR(ERRDOS,ERRnoaccess)); } /* * 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))) smb_action |= EXTENDED_OPLOCK_GRANTED; if(oplock_request && EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) smb_action |= EXTENDED_OPLOCK_GRANTED; 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 (smb_action & EXTENDED_OPLOCK_GRANTED) SCVAL(p,0, BATCH_OPLOCK_RETURN); else if (LEVEL_II_OPLOCK_TYPE(fsp->oplock_type)) SCVAL(p,0, LEVEL_II_OPLOCK_RETURN); else SCVAL(p,0,NO_OPLOCK_RETURN); p++; SSVAL(p,0,fsp->fnum); p += 2; SIVAL(p,0,smb_action); p += 4; /* Create time. */ c_time = get_create_time(&sbuf,lp_fake_dir_create_times(SNUM(conn))); if (lp_dos_filetime_resolution(SNUM(conn))) { c_time &= ~1; sbuf.st_atime &= ~1; sbuf.st_mtime &= ~1; sbuf.st_mtime &= ~1; } put_long_date(p,c_time); p += 8; put_long_date(p,sbuf.st_atime); /* access time */ p += 8; put_long_date(p,sbuf.st_mtime); /* write time */ p += 8; put_long_date(p,sbuf.st_mtime); /* change time */ p += 8; SIVAL(p,0,fmode); /* File Attributes. */ p += 4; SOFF_T(p, 0, file_len); p += 8; SOFF_T(p,0,file_len); p += 12; SCVAL(p,0,fsp->is_directory ? 1 : 0); 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, char **ppsetup, char **ppparams, char **ppdata) { pstring fname; int total_parameter_count = (int)IVAL(inbuf, smb_nt_TotalParameterCount); char *params = *ppparams; int ret; int pnum = -1; char *p = NULL; /* * Ensure minimum number of parameters sent. */ if(total_parameter_count < 54) { DEBUG(0,("do_nt_transact_create_pipe - insufficient parameters (%u)\n", (unsigned int)total_parameter_count)); return(ERROR(ERRDOS,ERRbadaccess)); } srvstr_pull(inbuf, fname, params+53, sizeof(fname), -1, STR_TERMINATE); if ((ret = nt_open_pipe(fname, conn, inbuf, outbuf, &pnum)) != 0) return ret; /* Realloc the size of parameters and data we will return */ params = Realloc(*ppparams, 69); if(params == NULL) return(ERROR(ERRDOS,ERRnomem)); *ppparams = params; memset((char *)params,'\0',69); 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); /* ? */ DEBUG(5,("do_nt_transact_create_pipe: open name = %s\n", fname)); /* Send the required number of replies */ send_nt_replies(inbuf, outbuf, bufsize, 0, params, 69, *ppdata, 0); return -1; } /**************************************************************************** Internal fn to set security descriptors. ****************************************************************************/ static BOOL set_sd(files_struct *fsp, char *data, uint32 sd_len, uint security_info_sent, int *pdef_class,uint32 *pdef_code) { prs_struct pd; SEC_DESC *psd = NULL; TALLOC_CTX *mem_ctx; BOOL ret; if (sd_len == 0) { *pdef_class = ERRDOS; *pdef_code = ERRbadaccess; return False; } /* * Init the parse struct we will unmarshall from. */ if ((mem_ctx = talloc_init()) == NULL) { DEBUG(0,("set_sd: talloc_init failed.\n")); *pdef_class = ERRDOS; *pdef_code = ERRnomem; return False; } 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); *pdef_class = ERRDOS; *pdef_code = ERRnomem; return False; } if (psd->off_owner_sid==0) security_info_sent &= ~OWNER_SECURITY_INFORMATION; if (psd->off_grp_sid==0) security_info_sent &= ~GROUP_SECURITY_INFORMATION; if (psd->off_sacl==0) security_info_sent &= ~SACL_SECURITY_INFORMATION; if (psd->off_dacl==0) security_info_sent &= ~DACL_SECURITY_INFORMATION; ret = fsp->conn->vfs_ops.fset_nt_acl( fsp, fsp->fd, security_info_sent, psd); if (!ret) { talloc_destroy(mem_ctx); *pdef_class = ERRDOS; *pdef_code = ERRnoaccess; return False; } talloc_destroy(mem_ctx); *pdef_class = 0; *pdef_code = 0; return True; } /**************************************************************************** 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, char **ppsetup, char **ppparams, char **ppdata) { pstring fname; char *params = *ppparams; char *data = *ppdata; int total_parameter_count = (int)IVAL(inbuf, smb_nt_TotalParameterCount); /* Breakout the oplock request bits so we can set the reply bits separately. */ int oplock_request = 0; mode_t unixmode; int fmode=0,rmode=0; SMB_OFF_T file_len = 0; SMB_STRUCT_STAT sbuf; int smb_action = 0; BOOL bad_path = False; files_struct *fsp = NULL; char *p = NULL; BOOL stat_open_only = False; uint32 flags; uint32 desired_access; uint32 file_attributes; uint32 share_access; uint32 create_disposition; uint32 create_options; uint32 sd_len; uint16 root_dir_fid; int smb_ofun; int smb_open_mode; int smb_attr; int error_class; uint32 error_code; time_t c_time; 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, ppparams, ppdata); else return(ERROR(ERRDOS,ERRbadaccess)); } /* * Ensure minimum number of parameters sent. */ if(total_parameter_count < 54) { DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)total_parameter_count)); return(ERROR(ERRDOS,ERRbadaccess)); } flags = IVAL(params,0); desired_access = 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); root_dir_fid = (uint16)IVAL(params,4); smb_attr = (file_attributes & SAMBA_ATTRIBUTES_MASK); /* * We need to construct the open_and_X ofun value from the * NT values, as that's what our code is structured to accept. */ if((smb_ofun = map_create_disposition( create_disposition )) == -1) return(ERROR(ERRDOS,ERRbadmem)); /* * 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(ERRDOS,ERRbadfid)); if(!dir_fsp->is_directory) { /* * Check to see if this is a mac fork of some kind. */ srvstr_pull(inbuf, fname, params+53, sizeof(fname), -1, STR_TERMINATE); if( strchr(fname, ':')) { SSVAL(outbuf, smb_flg2, SVAL(outbuf,smb_flg2) | FLAGS2_32_BIT_ERROR_CODES); return(ERROR(0, NT_STATUS_OBJECT_PATH_NOT_FOUND)); } return(ERROR(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_pull(inbuf, &fname[dir_name_len], params+53, sizeof(fname)-dir_name_len, -1, STR_TERMINATE); } else { srvstr_pull(inbuf, fname, params+53, sizeof(fname), -1, STR_TERMINATE); } /* * Now contruct the smb_open_mode value from the desired access * and the share access. */ if((smb_open_mode = map_share_mode( &stat_open_only, fname, desired_access, share_access, file_attributes)) == -1) return(ERROR(ERRDOS,ERRbadaccess)); oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0; oplock_request |= (flags & REQUEST_BATCH_OPLOCK) ? BATCH_OPLOCK : 0; /* * Check if POSIX semantics are wanted. */ set_posix_case_semantics(file_attributes); RESOLVE_DFSPATH(fname, conn, inbuf, outbuf); unix_convert(fname,conn,0,&bad_path,&sbuf); unixmode = unix_mode(conn,smb_attr | aARCH, fname); /* * If it's a request for a directory open, deal with it separately. */ if(create_options & FILE_DIRECTORY_FILE) { oplock_request = 0; /* * We will get a create directory here if the Win32 * app specified a security descriptor in the * CreateDirectory() call. */ fsp = open_directory(conn, fname, &sbuf, smb_ofun, unixmode, &smb_action); if(!fsp) { restore_case_semantics(file_attributes); if((errno == ENOENT) && bad_path) { unix_ERR_class = ERRDOS; unix_ERR_code = ERRbadpath; } return(UNIXERROR(ERRDOS,ERRnoaccess)); } } else { /* * Ordinary file case. */ fsp = open_file_shared(conn,fname,&sbuf,smb_open_mode,smb_ofun,unixmode, oplock_request,&rmode,&smb_action); if (!fsp) { if(errno == EISDIR) { /* * Fail the open if it was explicitly a non-directory file. */ if (create_options & FILE_NON_DIRECTORY_FILE) { restore_case_semantics(file_attributes); SSVAL(outbuf, smb_flg2, SVAL(outbuf,smb_flg2) | FLAGS2_32_BIT_ERROR_CODES); return(ERROR(0, NT_STATUS_FILE_IS_A_DIRECTORY)); } oplock_request = 0; fsp = open_directory(conn, fname, &sbuf, smb_ofun, unixmode, &smb_action); if(!fsp) { restore_case_semantics(file_attributes); if((errno == ENOENT) && bad_path) { unix_ERR_class = ERRDOS; unix_ERR_code = ERRbadpath; } return(UNIXERROR(ERRDOS,ERRnoaccess)); } #ifdef EROFS } else if (((errno == EACCES) || (errno == EROFS)) && stat_open_only) { #else /* !EROFS */ } else if (errno == EACCES && stat_open_only) { #endif /* * We couldn't open normally and all we want * are the permissions. Try and do a stat open. */ oplock_request = 0; fsp = open_file_stat(conn,fname,&sbuf,smb_open_mode,&smb_action); if(!fsp) { restore_case_semantics(file_attributes); return(UNIXERROR(ERRDOS,ERRnoaccess)); } } else { if((errno == ENOENT) && bad_path) { unix_ERR_class = ERRDOS; unix_ERR_code = ERRbadpath; } restore_case_semantics(file_attributes); return(UNIXERROR(ERRDOS,ERRnoaccess)); } } file_len = sbuf.st_size; fmode = dos_mode(conn,fname,&sbuf); if(fmode == 0) fmode = FILE_ATTRIBUTE_NORMAL; if (fmode & aDIR) { close_file(fsp,False); restore_case_semantics(file_attributes); return(ERROR(ERRDOS,ERRnoaccess)); } /* * 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))) smb_action |= EXTENDED_OPLOCK_GRANTED; if(oplock_request && EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) smb_action |= EXTENDED_OPLOCK_GRANTED; } /* * Now try and apply the desired SD. */ if (!set_sd( fsp, data, sd_len, ALL_SECURITY_INFORMATION, &error_class, &error_code)) { close_file(fsp,False); restore_case_semantics(file_attributes); return(ERROR(error_class, error_code)); } restore_case_semantics(file_attributes); /* Realloc the size of parameters and data we will return */ params = Realloc(*ppparams, 69); if(params == NULL) return(ERROR(ERRDOS,ERRnomem)); *ppparams = params; memset((char *)params,'\0',69); p = params; if (smb_action & EXTENDED_OPLOCK_GRANTED) SCVAL(p,0, BATCH_OPLOCK_RETURN); else if (LEVEL_II_OPLOCK_TYPE(fsp->oplock_type)) SCVAL(p,0, LEVEL_II_OPLOCK_RETURN); else SCVAL(p,0,NO_OPLOCK_RETURN); p += 2; SSVAL(p,0,fsp->fnum); p += 2; SIVAL(p,0,smb_action); p += 8; /* Create time. */ c_time = get_create_time(&sbuf,lp_fake_dir_create_times(SNUM(conn))); if (lp_dos_filetime_resolution(SNUM(conn))) { c_time &= ~1; sbuf.st_atime &= ~1; sbuf.st_mtime &= ~1; sbuf.st_mtime &= ~1; } put_long_date(p,c_time); p += 8; put_long_date(p,sbuf.st_atime); /* access time */ p += 8; put_long_date(p,sbuf.st_mtime); /* write time */ p += 8; put_long_date(p,sbuf.st_mtime); /* change time */ p += 8; SIVAL(p,0,fmode); /* File Attributes. */ p += 4; SOFF_T(p,0,file_len); p += 8; SOFF_T(p,0,file_len); DEBUG(5,("call_nt_transact_create: open name = %s\n", fname)); /* Send the required number of replies */ send_nt_replies(inbuf, outbuf, bufsize, 0, params, 69, *ppdata, 0); return -1; } /**************************************************************************** Reply to a NT CANCEL request. ****************************************************************************/ 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); DEBUG(3,("reply_ntcancel: cancel called on mid = %d.\n", mid)); END_PROFILE(SMBntcancel); return(-1); } /**************************************************************************** Reply to an unsolicited SMBNTtranss - just ignore it! ****************************************************************************/ int reply_nttranss(connection_struct *conn, char *inbuf,char *outbuf,int length,int bufsize) { START_PROFILE(SMBnttranss); DEBUG(4,("Ignoring nttranss of length %d\n",length)); END_PROFILE(SMBnttranss); return(-1); } /**************************************************************************** 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, char **ppsetup, char **ppparams, char **ppdata) { char *setup = *ppsetup; files_struct *fsp; uint32 flags; fsp = file_fsp(setup,4); flags = IVAL(setup, 0); DEBUG(3,("call_nt_transact_notify_change\n")); if(!fsp) return(ERROR(ERRDOS,ERRbadfid)); if((!fsp->is_directory) || (conn != fsp->conn)) return(ERROR(ERRDOS,ERRbadfid)); if (!change_notify_set(inbuf, fsp, conn, flags)) { return(UNIXERROR(ERRDOS,ERRbadfid)); } DEBUG(3,("call_nt_transact_notify_change: notify change called on directory \ name = %s\n", fsp->fsp_name )); 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, char **ppsetup, char **ppparams, char **ppdata) { char *params = *ppparams; pstring new_name; files_struct *fsp = file_fsp(params, 0); BOOL replace_if_exists = (SVAL(params,2) & RENAME_REPLACE_IF_EXISTS) ? True : False; int outsize = 0; CHECK_FSP(fsp, conn); srvstr_pull(inbuf, new_name, params+4, sizeof(new_name), -1, STR_TERMINATE); outsize = rename_internals(conn, inbuf, outbuf, fsp->fsp_name, new_name, replace_if_exists); if(outsize == 0) { /* * Rename was successful. */ send_nt_replies(inbuf, outbuf, bufsize, 0, NULL, 0, NULL, 0); DEBUG(3,("nt transact rename from = %s, to = %s succeeded.\n", fsp->fsp_name, new_name)); outsize = -1; /* * Win2k needs a changenotify request response before it will * update after a rename.. */ process_pending_change_notify_queue((time_t)0); } return(outsize); } /**************************************************************************** Reply to query a security descriptor - currently this is not implemented (it is planned to be though). Right now it just returns the same thing NT would when queried on a FAT filesystem. JRA. ****************************************************************************/ static int call_nt_transact_query_security_desc(connection_struct *conn, char *inbuf, char *outbuf, int length, int bufsize, char **ppsetup, char **ppparams, char **ppdata) { uint32 max_data_count = IVAL(inbuf,smb_nt_MaxDataCount); char *params = *ppparams; char *data = *ppdata; prs_struct pd; SEC_DESC *psd = NULL; size_t sd_size; TALLOC_CTX *mem_ctx; files_struct *fsp = file_fsp(params,0); if(!fsp) return(ERROR(ERRDOS,ERRbadfid)); DEBUG(3,("call_nt_transact_query_security_desc: file = %s\n", fsp->fsp_name )); params = Realloc(*ppparams, 4); if(params == NULL) return(ERROR(ERRDOS,ERRnomem)); *ppparams = params; /* * Get the permissions to return. */ if((sd_size = conn->vfs_ops.fget_nt_acl(fsp, fsp->fd, &psd)) == 0) return(UNIXERROR(ERRDOS,ERRnoaccess)); DEBUG(3,("call_nt_transact_query_security_desc: sd_size = %d.\n",(int)sd_size)); SIVAL(params,0,(uint32)sd_size); if(max_data_count < sd_size) { send_nt_replies(inbuf, outbuf, bufsize, NT_STATUS_BUFFER_TOO_SMALL, params, 4, *ppdata, 0); return -1; } /* * Allocate the data we will point this at. */ data = Realloc(*ppdata, sd_size); if(data == NULL) { return(ERROR(ERRDOS,ERRnomem)); } *ppdata = data; memset(data, '\0', sd_size); /* * Init the parse struct we will marshall into. */ if ((mem_ctx = talloc_init()) == NULL) { DEBUG(0,("call_nt_transact_query_security_desc: talloc_init failed.\n")); return(ERROR(ERRDOS,ERRnomem)); } 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(inbuf, outbuf, bufsize, 0, params, 4, data, (int)sd_size); return -1; } /**************************************************************************** Reply to set a security descriptor. Map to UNIX perms. ****************************************************************************/ static int call_nt_transact_set_security_desc(connection_struct *conn, char *inbuf, char *outbuf, int length, int bufsize, char **ppsetup, char **ppparams, char **ppdata) { uint32 total_parameter_count = IVAL(inbuf, smb_nts_TotalParameterCount); char *params= *ppparams; char *data = *ppdata; uint32 total_data_count = (uint32)IVAL(inbuf, smb_nts_TotalDataCount); files_struct *fsp = NULL; uint32 security_info_sent = 0; int error_class; uint32 error_code; if(!lp_nt_acl_support()) return(UNIXERROR(ERRDOS,ERRnoaccess)); if(total_parameter_count < 8) return(ERROR(ERRDOS,ERRbadfunc)); if((fsp = file_fsp(params,0)) == NULL) return(ERROR(ERRDOS,ERRbadfid)); 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 (!set_sd( fsp, data, total_data_count, security_info_sent, &error_class, &error_code)) return (ERROR(error_class, error_code)); send_nt_replies(inbuf, outbuf, bufsize, 0, NULL, 0, NULL, 0); return -1; } /**************************************************************************** Reply to IOCTL - not implemented - no plans. ****************************************************************************/ static int call_nt_transact_ioctl(connection_struct *conn, char *inbuf, char *outbuf, int length, int bufsize, char **ppsetup, char **ppparams, char **ppdata) { static BOOL logged_message = False; if(!logged_message) { DEBUG(0,("call_nt_transact_ioctl: Currently not implemented.\n")); logged_message = True; /* Only print this once... */ } return(ERROR(ERRSRV,ERRnosupport)); } /**************************************************************************** Reply to a SMBNTtrans. ****************************************************************************/ int reply_nttrans(connection_struct *conn, char *inbuf,char *outbuf,int length,int bufsize) { int outsize = 0; #if 0 /* Not used. */ uint16 max_setup_count = CVAL(inbuf, smb_nt_MaxSetupCount); uint32 max_parameter_count = IVAL(inbuf, smb_nt_MaxParameterCount); uint32 max_data_count = IVAL(inbuf,smb_nt_MaxDataCount); #endif /* Not used. */ uint32 total_parameter_count = IVAL(inbuf, smb_nt_TotalParameterCount); uint32 total_data_count = IVAL(inbuf, smb_nt_TotalDataCount); uint32 parameter_count = IVAL(inbuf,smb_nt_ParameterCount); uint32 parameter_offset = IVAL(inbuf,smb_nt_ParameterOffset); uint32 data_count = IVAL(inbuf,smb_nt_DataCount); uint32 data_offset = IVAL(inbuf,smb_nt_DataOffset); uint16 setup_count = 2*CVAL(inbuf,smb_nt_SetupCount); /* setup count is in *words* */ uint16 function_code = SVAL( inbuf, smb_nt_Function); char *params = NULL, *data = NULL, *setup = NULL; uint32 num_params_sofar, num_data_sofar; START_PROFILE(SMBnttrans); if(global_oplock_break && (function_code == NT_TRANSACT_CREATE)) { /* * Queue this open message as we are the process of an oplock break. */ DEBUG(2,("reply_nttrans: queueing message NT_TRANSACT_CREATE \ due to being in oplock break state.\n" )); push_oplock_pending_smb_message( inbuf, length); END_PROFILE(SMBnttrans); return -1; } if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) { END_PROFILE(SMBnttrans); return (ERROR(ERRSRV,ERRaccess)); } outsize = set_message(outbuf,0,0,True); /* * All nttrans messages we handle have smb_wct == 19 + setup_count. * Ensure this is so as a sanity check. */ if(CVAL(inbuf, smb_wct) != 19 + (setup_count/2)) { DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n", CVAL(inbuf, smb_wct), 19 + (setup_count/2))); END_PROFILE(SMBnttrans); return(ERROR(ERRSRV,ERRerror)); } /* Allocate the space for the setup, the maximum needed parameters and data */ if(setup_count > 0) setup = (char *)malloc(setup_count); if (total_parameter_count > 0) params = (char *)malloc(total_parameter_count); if (total_data_count > 0) data = (char *)malloc(total_data_count); if ((total_parameter_count && !params) || (total_data_count && !data) || (setup_count && !setup)) { safe_free(setup); safe_free(params); safe_free(data); DEBUG(0,("reply_nttrans : Out of memory\n")); END_PROFILE(SMBnttrans); return(ERROR(ERRDOS,ERRnomem)); } /* Copy the param and data bytes sent with this request into the params buffer */ num_params_sofar = parameter_count; num_data_sofar = data_count; if (parameter_count > total_parameter_count || data_count > total_data_count) exit_server("reply_nttrans: invalid sizes in packet.\n"); if(setup) { memcpy( setup, &inbuf[smb_nt_SetupStart], setup_count); DEBUG(10,("reply_nttrans: setup_count = %d\n", setup_count)); dump_data(10, setup, setup_count); } if(params) { memcpy( params, smb_base(inbuf) + parameter_offset, parameter_count); DEBUG(10,("reply_nttrans: parameter_count = %d\n", parameter_count)); dump_data(10, params, parameter_count); } if(data) { memcpy( data, smb_base(inbuf) + data_offset, data_count); DEBUG(10,("reply_nttrans: data_count = %d\n",data_count)); dump_data(10, data, data_count); } if(num_data_sofar < total_data_count || num_params_sofar < total_parameter_count) { /* We need to send an interim response then receive the rest of the parameter/data bytes */ outsize = set_message(outbuf,0,0,True); if (!send_smb(smbd_server_fd(),outbuf)) exit_server("reply_nttrans: send_smb failed.\n"); while( num_data_sofar < total_data_count || num_params_sofar < total_parameter_count) { BOOL ret; ret = receive_next_smb(inbuf,bufsize,SMB_SECONDARY_WAIT); if((ret && (CVAL(inbuf, smb_com) != SMBnttranss)) || !ret) { outsize = set_message(outbuf,0,0,True); if(ret) { DEBUG(0,("reply_nttrans: Invalid secondary nttrans packet\n")); } else { DEBUG(0,("reply_nttrans: %s in getting secondary nttrans response.\n", (smb_read_error == READ_ERROR) ? "error" : "timeout" )); } if(params) free(params); if(data) free(data); if(setup) free(setup); END_PROFILE(SMBnttrans); return(ERROR(ERRSRV,ERRerror)); } /* Revise total_params and total_data in case they have changed downwards */ total_parameter_count = IVAL(inbuf, smb_nts_TotalParameterCount); total_data_count = IVAL(inbuf, smb_nts_TotalDataCount); num_params_sofar += (parameter_count = IVAL(inbuf,smb_nts_ParameterCount)); num_data_sofar += ( data_count = IVAL(inbuf, smb_nts_DataCount)); if (num_params_sofar > total_parameter_count || num_data_sofar > total_data_count) exit_server("reply_nttrans2: data overflow in secondary nttrans packet\n"); memcpy( ¶ms[ IVAL(inbuf, smb_nts_ParameterDisplacement)], smb_base(inbuf) + IVAL(inbuf, smb_nts_ParameterOffset), parameter_count); memcpy( &data[IVAL(inbuf, smb_nts_DataDisplacement)], smb_base(inbuf)+ IVAL(inbuf, smb_nts_DataOffset), data_count); } } 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(function_code) { case NT_TRANSACT_CREATE: START_PROFILE_NESTED(NT_transact_create); outsize = call_nt_transact_create(conn, inbuf, outbuf, length, bufsize, &setup, ¶ms, &data); END_PROFILE_NESTED(NT_transact_create); break; case NT_TRANSACT_IOCTL: START_PROFILE_NESTED(NT_transact_ioctl); outsize = call_nt_transact_ioctl(conn, inbuf, outbuf, length, bufsize, &setup, ¶ms, &data); END_PROFILE_NESTED(NT_transact_ioctl); break; case NT_TRANSACT_SET_SECURITY_DESC: START_PROFILE_NESTED(NT_transact_set_security_desc); outsize = call_nt_transact_set_security_desc(conn, inbuf, outbuf, length, bufsize, &setup, ¶ms, &data); END_PROFILE_NESTED(NT_transact_set_security_desc); break; case NT_TRANSACT_NOTIFY_CHANGE: START_PROFILE_NESTED(NT_transact_notify_change); outsize = call_nt_transact_notify_change(conn, inbuf, outbuf, length, bufsize, &setup, ¶ms, &data); END_PROFILE_NESTED(NT_transact_notify_change); break; case NT_TRANSACT_RENAME: START_PROFILE_NESTED(NT_transact_rename); outsize = call_nt_transact_rename(conn, inbuf, outbuf, length, bufsize, &setup, ¶ms, &data); END_PROFILE_NESTED(NT_transact_rename); break; case NT_TRANSACT_QUERY_SECURITY_DESC: START_PROFILE_NESTED(NT_transact_query_security_desc); outsize = call_nt_transact_query_security_desc(conn, inbuf, outbuf, length, bufsize, &setup, ¶ms, &data); END_PROFILE_NESTED(NT_transact_query_security_desc); break; default: /* Error in request */ DEBUG(0,("reply_nttrans: Unknown request %d in nttrans call\n", function_code)); if(setup) free(setup); if(params) free(params); if(data) free(data); END_PROFILE(SMBnttrans); return (ERROR(ERRSRV,ERRerror)); } /* As we do not know how many data packets will need to be returned here the various call_nt_transact_xxxx calls must send their own. Thus a call_nt_transact_xxxx routine only returns a value other than -1 when it wants to send an error packet. */ if(setup) free(setup); if(params) free(params); if(data) free(data); END_PROFILE(SMBnttrans); return outsize; /* If a correct response was needed the call_nt_transact_xxxx calls have already sent it. If outsize != -1 then it is returning an error packet. */ }