/* Unix SMB/CIFS implementation. SMB NT transaction handling Copyright (C) Jeremy Allison 1994-2007 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 3 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, see . */ #include "includes.h" extern int max_send; extern enum protocol_types Protocol; 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"); } *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. ****************************************************************************/ void send_nt_replies(struct smb_request *req, 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; /* * If there genuinely are no parameters or data to send just send * the empty packet. */ if(params_to_send == 0 && data_to_send == 0) { reply_outbuf(req, 18, 0); show_msg((char *)req->outbuf); return; } /* * 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 = max_send - (smb_size + 2 * 18 /* wct */ + alignment_offset + data_alignment_offset); /* * 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); reply_outbuf(req, 18, total_sent_thistime); /* * Set total params and data to be sent. */ SIVAL(req->outbuf,smb_ntr_TotalParameterCount,paramsize); SIVAL(req->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(req->outbuf, smb_ntr_ParameterCount, params_sent_thistime); if(params_sent_thistime == 0) { SIVAL(req->outbuf,smb_ntr_ParameterOffset,0); SIVAL(req->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(req->outbuf,smb_ntr_ParameterOffset, ((smb_buf(req->outbuf)+alignment_offset) - smb_base(req->outbuf))); /* * Absolute displacement of param bytes sent in this packet. */ SIVAL(req->outbuf, smb_ntr_ParameterDisplacement, pp - params); } /* * Deal with the data portion. */ SIVAL(req->outbuf, smb_ntr_DataCount, data_sent_thistime); if(data_sent_thistime == 0) { SIVAL(req->outbuf,smb_ntr_DataOffset,0); SIVAL(req->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(req->outbuf, smb_ntr_DataOffset, ((smb_buf(req->outbuf)+alignment_offset) - smb_base(req->outbuf)) + params_sent_thistime + data_alignment_offset); SIVAL(req->outbuf,smb_ntr_DataDisplacement, pd - pdata); } /* * Copy the param bytes into the packet. */ if(params_sent_thistime) { if (alignment_offset != 0) { memset(smb_buf(req->outbuf), 0, alignment_offset); } memcpy((smb_buf(req->outbuf)+alignment_offset), pp, params_sent_thistime); } /* * Copy in the data bytes */ if(data_sent_thistime) { if (data_alignment_offset != 0) { memset((smb_buf(req->outbuf)+alignment_offset+ params_sent_thistime), 0, data_alignment_offset); } memcpy(smb_buf(req->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)); if (NT_STATUS_V(nt_error)) { error_packet_set((char *)req->outbuf, 0, 0, nt_error, __LINE__,__FILE__); } /* Send the packet */ show_msg((char *)req->outbuf); if (!send_smb(smbd_server_fd(),(char *)req->outbuf)) { exit_server_cleanly("send_nt_replies: send_smb failed."); } TALLOC_FREE(req->outbuf); 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; } } } /**************************************************************************** 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; } struct case_semantics_state { connection_struct *conn; bool case_sensitive; bool case_preserve; bool short_case_preserve; }; /**************************************************************************** Restore case semantics. ****************************************************************************/ static int restore_case_semantics(struct case_semantics_state *state) { state->conn->case_sensitive = state->case_sensitive; state->conn->case_preserve = state->case_preserve; state->conn->short_case_preserve = state->short_case_preserve; return 0; } /**************************************************************************** Save case semantics. ****************************************************************************/ static struct case_semantics_state *set_posix_case_semantics(TALLOC_CTX *mem_ctx, connection_struct *conn) { struct case_semantics_state *result; if (!(result = talloc(mem_ctx, struct case_semantics_state))) { DEBUG(0, ("talloc failed\n")); return NULL; } result->conn = conn; result->case_sensitive = conn->case_sensitive; result->case_preserve = conn->case_preserve; result->short_case_preserve = conn->short_case_preserve; /* Set to POSIX. */ conn->case_sensitive = True; conn->case_preserve = True; conn->short_case_preserve = True; talloc_set_destructor(result, restore_case_semantics); return result; } /**************************************************************************** Reply to an NT create and X call on a pipe ****************************************************************************/ static void nt_open_pipe(char *fname, connection_struct *conn, struct smb_request *req, int *ppnum) { smb_np_struct *p = NULL; 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")) { reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND, ERRDOS, ERRbadpipe); return; } for( i = 0; known_nt_pipes[i]; i++ ) { if( strequal(fname,known_nt_pipes[i])) { break; } } if ( known_nt_pipes[i] == NULL ) { reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND, ERRDOS, ERRbadpipe); return; } /* Strip \\ off the name. */ fname++; DEBUG(3,("nt_open_pipe: Known pipe %s opening.\n", fname)); p = open_rpc_pipe_p(fname, conn, req->vuid); if (!p) { reply_doserror(req, ERRSRV, ERRnofids); return; } /* TODO: 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; } /**************************************************************************** Reply to an NT create and X call for pipes. ****************************************************************************/ static void do_ntcreate_pipe_open(connection_struct *conn, struct smb_request *req) { char *fname = NULL; int pnum = -1; char *p = NULL; uint32 flags = IVAL(req->inbuf,smb_ntcreate_Flags); TALLOC_CTX *ctx = talloc_tos(); srvstr_pull_buf_talloc(ctx, (char *)req->inbuf, req->flags2, &fname, smb_buf(req->inbuf), STR_TERMINATE); if (!fname) { reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND, ERRDOS, ERRbadpipe); return; } nt_open_pipe(fname, conn, req, &pnum); if (req->outbuf) { /* error reply */ return; } /* * 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.... */ reply_outbuf(req, 50, 0); SCVAL(req->outbuf,smb_wct,42); } else { reply_outbuf(req, 34, 0); } p = (char *)req->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 += 25; 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)); chain_reply(req); } /**************************************************************************** Reply to an NT create and X call for a quota file. ****************************************************************************/ static void reply_ntcreate_and_X_quota(connection_struct *conn, struct smb_request *req, enum FAKE_FILE_TYPE fake_file_type, const char *fname) { char *p; uint32 desired_access = IVAL(req->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)) { reply_nterror(req, status); return; } reply_outbuf(req, 34, 0); p = (char *)req->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)); chain_reply(req); } /**************************************************************************** Reply to an NT create and X call. ****************************************************************************/ void reply_ntcreate_and_X(connection_struct *conn, struct smb_request *req) { char *fname = NULL; uint32 flags; uint32 access_mask; uint32 file_attributes; uint32 share_access; uint32 create_disposition; uint32 create_options; uint16 root_dir_fid; SMB_BIG_UINT allocation_size; /* 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; struct case_semantics_state *case_state = NULL; TALLOC_CTX *ctx = talloc_tos(); START_PROFILE(SMBntcreateX); if (req->wct < 24) { reply_nterror(req, NT_STATUS_INVALID_PARAMETER); return; } flags = IVAL(req->inbuf,smb_ntcreate_Flags); access_mask = IVAL(req->inbuf,smb_ntcreate_DesiredAccess); file_attributes = IVAL(req->inbuf,smb_ntcreate_FileAttributes); share_access = IVAL(req->inbuf,smb_ntcreate_ShareAccess); create_disposition = IVAL(req->inbuf,smb_ntcreate_CreateDisposition); create_options = IVAL(req->inbuf,smb_ntcreate_CreateOptions); root_dir_fid = (uint16)IVAL(req->inbuf,smb_ntcreate_RootDirectoryFid); allocation_size = (SMB_BIG_UINT)IVAL(req->inbuf,smb_ntcreate_AllocationSize); #ifdef LARGE_SMB_OFF_T allocation_size |= (((SMB_BIG_UINT)IVAL(req->inbuf,smb_ntcreate_AllocationSize + 4)) << 32); #endif 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()) { do_ntcreate_pipe_open(conn, req); END_PROFILE(SMBntcreateX); return; } else { reply_doserror(req, ERRDOS, ERRnoaccess); END_PROFILE(SMBntcreateX); return; } } if (create_options & FILE_OPEN_BY_FILE_ID) { reply_nterror(req, NT_STATUS_NOT_SUPPORTED); END_PROFILE(SMBntcreateX); return; } /* * Get the file name. */ if(root_dir_fid != 0) { /* * This filename is relative to a directory fid. */ char *rel_fname = NULL; files_struct *dir_fsp = file_fsp( SVAL(req->inbuf, smb_ntcreate_RootDirectoryFid)); if(!dir_fsp) { reply_doserror(req, ERRDOS, ERRbadfid); END_PROFILE(SMBntcreateX); return; } if(!dir_fsp->is_directory) { srvstr_get_path(ctx, (char *)req->inbuf, req->flags2, &fname, smb_buf(req->inbuf), 0, STR_TERMINATE, &status); if (!NT_STATUS_IS_OK(status)) { reply_nterror(req, status); END_PROFILE(SMBntcreateX); return; } /* * Check to see if this is a mac fork of some kind. */ if( is_ntfs_stream_name(fname)) { reply_nterror( req, NT_STATUS_OBJECT_PATH_NOT_FOUND); END_PROFILE(SMBntcreateX); return; } /* 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) */ reply_doserror(req, ERRDOS, ERRbadfid); END_PROFILE(SMBntcreateX); return; } if (ISDOT(dir_fsp->fsp_name)) { /* * We're at the toplevel dir, the final file name * must not contain ./, as this is filtered out * normally by srvstr_get_path and unix_convert * explicitly rejects paths containing ./. */ fname = talloc_strdup(ctx,""); if (!fname) { reply_nterror(req, NT_STATUS_NO_MEMORY); END_PROFILE(SMBntcreateX); return; } } else { size_t dir_name_len = strlen(dir_fsp->fsp_name); /* * Copy in the base directory name. */ fname = TALLOC_ARRAY(ctx, char, dir_name_len+2); if (!fname) { reply_nterror( req, NT_STATUS_NO_MEMORY); END_PROFILE(SMBntcreateX); return; } memcpy(fname, dir_fsp->fsp_name, dir_name_len+1); /* * Ensure it ends in a '/'. * We used TALLOC_SIZE +2 to add space for the '/'. */ if(dir_name_len && (fname[dir_name_len-1] != '\\') && (fname[dir_name_len-1] != '/')) { fname[dir_name_len] = '/'; fname[dir_name_len+1] = '\0'; } } srvstr_get_path(ctx, (char *)req->inbuf, req->flags2, &rel_fname, smb_buf(req->inbuf), 0, STR_TERMINATE, &status); if (!NT_STATUS_IS_OK(status)) { reply_nterror(req, status); END_PROFILE(SMBntcreateX); return; } fname = talloc_asprintf(ctx, "%s%s", fname, rel_fname); if (!fname) { reply_nterror( req, NT_STATUS_NO_MEMORY); END_PROFILE(SMBntcreateX); return; } } else { srvstr_get_path(ctx, (char *)req->inbuf, req->flags2, &fname, smb_buf(req->inbuf), 0, STR_TERMINATE, &status); if (!NT_STATUS_IS_OK(status)) { reply_nterror(req, status); END_PROFILE(SMBntcreateX); return; } /* * 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 */ reply_ntcreate_and_X_quota(conn, req, fake_file_type, fname); } else { reply_nterror(req, NT_STATUS_OBJECT_PATH_NOT_FOUND); } END_PROFILE(SMBntcreateX); return; } } /* * Now contruct the smb_open_mode value from the filename, * desired access and the share access. */ status = resolve_dfspath(ctx, conn, req->flags2 & FLAGS2_DFS_PATHNAMES, fname, &fname); if (!NT_STATUS_IS_OK(status)) { if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) { reply_botherror(req, NT_STATUS_PATH_NOT_COVERED, ERRSRV, ERRbadpath); } else { reply_nterror(req, status); } END_PROFILE(SMBntcreateX); return; } 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. */ if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) { case_state = set_posix_case_semantics(NULL, conn); file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS; } status = unix_convert(ctx, conn, fname, False, &fname, NULL, &sbuf); if (!NT_STATUS_IS_OK(status)) { TALLOC_FREE(case_state); reply_nterror(req, status); END_PROFILE(SMBntcreateX); return; } /* All file access must go through check_name() */ status = check_name(conn, fname); if (!NT_STATUS_IS_OK(status)) { TALLOC_FREE(case_state); reply_nterror(req, status); END_PROFILE(SMBntcreateX); return; } /* 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) && !lp_delete_readonly(SNUM(conn))) || !can_delete_file_in_directory(conn, fname)) { TALLOC_FREE(case_state); reply_nterror(req, NT_STATUS_ACCESS_DENIED); END_PROFILE(SMBntcreateX); return; } } #if 0 /* We need to support SeSecurityPrivilege for this. */ if ((access_mask & SEC_RIGHT_SYSTEM_SECURITY) && !user_has_privileges(current_user.nt_user_token, &se_security)) { TALLOC_FREE(case_state); END_PROFILE(SMBntcreateX); return ERROR_NT(NT_STATUS_PRIVILEGE_NOT_HELD); } #endif /* * 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) { TALLOC_FREE(case_state); reply_nterror(req, NT_STATUS_INVALID_PARAMETER); END_PROFILE(SMBntcreateX); return; } oplock_request = 0; status = open_directory(conn, req, fname, &sbuf, access_mask, share_access, create_disposition, create_options, file_attributes, &info, &fsp); } 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, req, fname, &sbuf, access_mask, share_access, create_disposition, create_options, file_attributes, oplock_request, &info, &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 (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) { TALLOC_FREE(case_state); reply_force_nterror(req, NT_STATUS_FILE_IS_A_DIRECTORY); END_PROFILE(SMBntcreateX); return; } oplock_request = 0; status = open_directory(conn, req, fname, &sbuf, access_mask, share_access, create_disposition, create_options, file_attributes, &info, &fsp); } } TALLOC_FREE(case_state); if (!NT_STATUS_IS_OK(status)) { if (open_was_deferred(req->mid)) { /* We have re-scheduled this call. */ END_PROFILE(SMBntcreateX); return; } reply_openerror(req, status); END_PROFILE(SMBntcreateX); return; } 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); reply_doserror(req, ERRDOS, ERRnoaccess); END_PROFILE(SMBntcreateX); return; } /* Save the requested allocation size. */ if ((info == FILE_WAS_CREATED) || (info == FILE_WAS_OVERWRITTEN)) { 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); /* Can't set allocation size on a directory. */ reply_nterror(req, NT_STATUS_ACCESS_DENIED); END_PROFILE(SMBntcreateX); return; } if (vfs_allocate_file_space(fsp, fsp->initial_allocation_size) == -1) { close_file(fsp,ERROR_CLOSE); reply_nterror(req, NT_STATUS_DISK_FULL); END_PROFILE(SMBntcreateX); return; } } 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.... */ reply_outbuf(req, 50, 0); SCVAL(req->outbuf,smb_wct,42); } else { reply_outbuf(req, 34, 0); } p = (char *)req->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 += 25; 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)); chain_reply(req); END_PROFILE(SMBntcreateX); return; } /**************************************************************************** Reply to a NT_TRANSACT_CREATE call to open a pipe. ****************************************************************************/ static void do_nt_transact_create_pipe(connection_struct *conn, struct smb_request *req, uint16 **ppsetup, uint32 setup_count, char **ppparams, uint32 parameter_count, char **ppdata, uint32 data_count) { char *fname = NULL; char *params = *ppparams; int pnum = -1; char *p = NULL; NTSTATUS status; size_t param_len; uint32 flags; TALLOC_CTX *ctx = talloc_tos(); /* * 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)); reply_doserror(req, ERRDOS, ERRnoaccess); return; } flags = IVAL(params,0); srvstr_get_path(ctx, params, req->flags2, &fname, params+53, parameter_count-53, STR_TERMINATE, &status); if (!NT_STATUS_IS_OK(status)) { reply_nterror(req, status); return; } nt_open_pipe(fname, conn, req, &pnum); if (req->outbuf) { /* Error return */ return; } /* 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) { reply_doserror(req, ERRDOS, ERRnomem); return; } 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 += 25; 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(req, NT_STATUS_OK, params, param_len, *ppdata, 0); return; } /**************************************************************************** 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; NTSTATUS status; 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; } status = SMB_VFS_FSET_NT_ACL( fsp, fsp->fh->fd, security_info_sent, psd); talloc_destroy(mem_ctx); return status; } /**************************************************************************** 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 void call_nt_transact_create(connection_struct *conn, struct smb_request *req, uint16 **ppsetup, uint32 setup_count, char **ppparams, uint32 parameter_count, char **ppdata, uint32 data_count, uint32 max_data_count) { char *fname = NULL; 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 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; char *pdata = NULL; NTSTATUS status; size_t param_len; struct case_semantics_state *case_state = NULL; TALLOC_CTX *ctx = talloc_tos(); 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()) { do_nt_transact_create_pipe( conn, req, ppsetup, setup_count, ppparams, parameter_count, ppdata, data_count); return; } else { reply_doserror(req, ERRDOS, ERRnoaccess); return; } } /* * Ensure minimum number of parameters sent. */ if(parameter_count < 54) { DEBUG(0,("call_nt_transact_create - insufficient parameters (%u)\n", (unsigned int)parameter_count)); reply_nterror(req, NT_STATUS_INVALID_PARAMETER); return; } 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 )); reply_nterror(req, NT_STATUS_INVALID_PARAMETER); return; } 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 )); reply_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED); return; } 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 )); reply_nterror(req, NT_STATUS_INVALID_PARAMETER); return; } } if (create_options & FILE_OPEN_BY_FILE_ID) { reply_nterror(req, NT_STATUS_NOT_SUPPORTED); return; } /* * Get the file name. */ if(root_dir_fid != 0) { /* * This filename is relative to a directory fid. */ char *tmpname = NULL; files_struct *dir_fsp = file_fsp(SVAL(params,4)); if(!dir_fsp) { reply_doserror(req, ERRDOS, ERRbadfid); return; } if(!dir_fsp->is_directory) { srvstr_get_path(ctx, params, req->flags2, &fname, params+53, parameter_count-53, STR_TERMINATE, &status); if (!NT_STATUS_IS_OK(status)) { reply_nterror(req, status); return; } /* * Check to see if this is a mac fork of some kind. */ if( is_ntfs_stream_name(fname)) { reply_nterror(req, NT_STATUS_OBJECT_PATH_NOT_FOUND); return; } reply_doserror(req, ERRDOS, ERRbadfid); return; } if (ISDOT(dir_fsp->fsp_name)) { /* * We're at the toplevel dir, the final file name * must not contain ./, as this is filtered out * normally by srvstr_get_path and unix_convert * explicitly rejects paths containing ./. */ fname = talloc_strdup(ctx,""); if (!fname) { reply_nterror(req, NT_STATUS_NO_MEMORY); return; } } else { size_t dir_name_len = strlen(dir_fsp->fsp_name); /* * Copy in the base directory name. */ fname = TALLOC_ARRAY(ctx, char, dir_name_len+2); if (!fname) { reply_nterror(req, NT_STATUS_NO_MEMORY); return; } memcpy(fname, dir_fsp->fsp_name, dir_name_len+1); /* * Ensure it ends in a '/'. * We used TALLOC_SIZE +2 to add space for the '/'. */ if(dir_name_len && (fname[dir_name_len-1] != '\\') && (fname[dir_name_len-1] != '/')) { fname[dir_name_len] = '/'; fname[dir_name_len+1] = '\0'; } } srvstr_get_path(ctx, params, req->flags2, &tmpname, params+53, parameter_count-53, STR_TERMINATE, &status); if (!NT_STATUS_IS_OK(status)) { reply_nterror(req, status); return; } fname = talloc_asprintf(ctx, "%s%s", fname, tmpname); if (!fname) { reply_nterror( req, NT_STATUS_NO_MEMORY); return; } } else { srvstr_get_path(ctx, params, req->flags2, &fname, params+53, parameter_count-53, STR_TERMINATE, &status); if (!NT_STATUS_IS_OK(status)) { reply_nterror(req, status); return; } /* * Check to see if this is a mac fork of some kind. */ if( is_ntfs_stream_name(fname)) { reply_nterror(req, NT_STATUS_OBJECT_PATH_NOT_FOUND); return; } } 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. */ if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) { case_state = set_posix_case_semantics(NULL, conn); file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS; } status = resolve_dfspath(ctx, conn, req->flags2 & FLAGS2_DFS_PATHNAMES, fname, &fname); if (!NT_STATUS_IS_OK(status)) { TALLOC_FREE(case_state); if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) { reply_botherror(req, NT_STATUS_PATH_NOT_COVERED, ERRSRV, ERRbadpath); return; } reply_nterror(req, status); return; } status = unix_convert(ctx, conn, fname, False, &fname, NULL, &sbuf); if (!NT_STATUS_IS_OK(status)) { TALLOC_FREE(case_state); reply_nterror(req, status); return; } /* All file access must go through check_name() */ status = check_name(conn, fname); if (!NT_STATUS_IS_OK(status)) { TALLOC_FREE(case_state); reply_nterror(req, status); return; } /* 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)) { TALLOC_FREE(case_state); reply_nterror(req, NT_STATUS_ACCESS_DENIED); return; } } #if 0 /* We need to support SeSecurityPrivilege for this. */ if ((access_mask & SEC_RIGHT_SYSTEM_SECURITY) && !user_has_privileges(current_user.nt_user_token, &se_security)) { TALLOC_FREE(case_state); reply_nterror(req, NT_STATUS_PRIVILEGE_NOT_HELD); return; } #endif if (ea_len) { pdata = data + sd_len; /* We have already checked that ea_len <= data_count here. */ ea_list = read_nttrans_ea_list(talloc_tos(), pdata, ea_len); if (!ea_list ) { TALLOC_FREE(case_state); reply_nterror(req, NT_STATUS_INVALID_PARAMETER); return; } } /* * 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) { TALLOC_FREE(case_state); reply_nterror(req, NT_STATUS_INVALID_PARAMETER); return; } /* * 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, req, fname, &sbuf, access_mask, share_access, create_disposition, create_options, file_attributes, &info, &fsp); } else { /* * Ordinary file case. */ status = open_file_ntcreate(conn,req,fname,&sbuf, access_mask, share_access, create_disposition, create_options, file_attributes, oplock_request, &info, &fsp); 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) { TALLOC_FREE(case_state); reply_force_nterror( req, NT_STATUS_FILE_IS_A_DIRECTORY); return; } oplock_request = 0; status = open_directory(conn, req, fname, &sbuf, access_mask, share_access, create_disposition, create_options, file_attributes, &info, &fsp); } } TALLOC_FREE(case_state); if(!NT_STATUS_IS_OK(status)) { if (open_was_deferred(req->mid)) { /* We have re-scheduled this call. */ return; } reply_openerror(req, status); return; } /* * 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)) { close_file(fsp,ERROR_CLOSE); TALLOC_FREE(case_state); reply_nterror(req, status); return; } 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); TALLOC_FREE(case_state); reply_nterror(req, status); return; } } TALLOC_FREE(case_state); 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); reply_doserror(req, ERRDOS, ERRnoaccess); return; } /* 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. */ reply_nterror(req, NT_STATUS_ACCESS_DENIED); return; } if (vfs_allocate_file_space(fsp, fsp->initial_allocation_size) == -1) { close_file(fsp,ERROR_CLOSE); reply_nterror(req, NT_STATUS_DISK_FULL); return; } } 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) { reply_doserror(req, ERRDOS, ERRnomem); return; } 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 += 25; 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(req, NT_STATUS_OK, params, param_len, *ppdata, 0); return; } /**************************************************************************** Reply to a NT CANCEL request. conn POINTER CAN BE NULL HERE ! ****************************************************************************/ void reply_ntcancel(connection_struct *conn, struct smb_request *req) { /* * Go through and cancel any pending change notifies. */ START_PROFILE(SMBntcancel); remove_pending_change_notify_requests_by_mid(req->mid); remove_pending_lock_requests_by_mid(req->mid); srv_cancel_sign_response(req->mid); DEBUG(3,("reply_ntcancel: cancel called on mid = %d.\n", req->mid)); END_PROFILE(SMBntcancel); return; } /**************************************************************************** Copy a file. ****************************************************************************/ static NTSTATUS copy_internals(TALLOC_CTX *ctx, connection_struct *conn, struct smb_request *req, const char *oldname_in, const char *newname_in, uint32 attrs) { SMB_STRUCT_STAT sbuf1, sbuf2; char *oldname = NULL; char *newname = NULL; char *last_component_oldname = NULL; char *last_component_newname = NULL; 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(ctx, conn, oldname_in, False, &oldname, &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(ctx, conn, newname_in, False, &newname, &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 = check_reduced_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, req, 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, req, 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),false); 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. ****************************************************************************/ void reply_ntrename(connection_struct *conn, struct smb_request *req) { char *oldname = NULL; char *newname = NULL; char *p; NTSTATUS status; bool src_has_wcard = False; bool dest_has_wcard = False; uint32 attrs; uint16 rename_type; TALLOC_CTX *ctx = talloc_tos(); START_PROFILE(SMBntrename); if (req->wct < 4) { reply_nterror(req, NT_STATUS_INVALID_PARAMETER); END_PROFILE(SMBntrename); return; } attrs = SVAL(req->inbuf,smb_vwv0); rename_type = SVAL(req->inbuf,smb_vwv1); p = smb_buf(req->inbuf) + 1; p += srvstr_get_path_wcard(ctx, (char *)req->inbuf, req->flags2, &oldname, p, 0, STR_TERMINATE, &status, &src_has_wcard); if (!NT_STATUS_IS_OK(status)) { reply_nterror(req, status); END_PROFILE(SMBntrename); return; } if( is_ntfs_stream_name(oldname)) { /* Can't rename a stream. */ reply_nterror(req, NT_STATUS_ACCESS_DENIED); END_PROFILE(SMBntrename); return; } if (ms_has_wild(oldname)) { reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD); END_PROFILE(SMBntrename); return; } p++; p += srvstr_get_path_wcard(ctx, (char *)req->inbuf, req->flags2, &newname, p, 0, STR_TERMINATE, &status, &dest_has_wcard); if (!NT_STATUS_IS_OK(status)) { reply_nterror(req, status); END_PROFILE(SMBntrename); return; } status = resolve_dfspath(ctx, conn, req->flags2 & FLAGS2_DFS_PATHNAMES, oldname, &oldname); if (!NT_STATUS_IS_OK(status)) { if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) { reply_botherror(req, NT_STATUS_PATH_NOT_COVERED, ERRSRV, ERRbadpath); END_PROFILE(SMBntrename); return; } reply_nterror(req, status); END_PROFILE(SMBntrename); return; } status = resolve_dfspath(ctx, conn, req->flags2 & FLAGS2_DFS_PATHNAMES, newname, &newname); if (!NT_STATUS_IS_OK(status)) { if (NT_STATUS_EQUAL(status,NT_STATUS_PATH_NOT_COVERED)) { reply_botherror(req, NT_STATUS_PATH_NOT_COVERED, ERRSRV, ERRbadpath); END_PROFILE(SMBntrename); return; } reply_nterror(req, status); END_PROFILE(SMBntrename); return; } DEBUG(3,("reply_ntrename : %s -> %s\n",oldname,newname)); switch(rename_type) { case RENAME_FLAG_RENAME: status = rename_internals(ctx, conn, req, 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(ctx, 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(ctx, conn, req, 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)) { if (open_was_deferred(req->mid)) { /* We have re-scheduled this call. */ END_PROFILE(SMBntrename); return; } reply_nterror(req, status); END_PROFILE(SMBntrename); return; } reply_outbuf(req, 0, 0); END_PROFILE(SMBntrename); return; } /**************************************************************************** Reply to a notify change - queue the request and don't allow a directory to be opened. ****************************************************************************/ static void call_nt_transact_notify_change(connection_struct *conn, struct smb_request *req, 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) { reply_doserror(req, ERRDOS, ERRbadfunc); return; } fsp = file_fsp(SVAL(setup,4)); filter = IVAL(setup, 0); recursive = (SVAL(setup, 6) != 0) ? True : False; DEBUG(3,("call_nt_transact_notify_change\n")); if(!fsp) { reply_doserror(req, ERRDOS, ERRbadfid); return; } { char *filter_string; if (!(filter_string = notify_filter_string(NULL, filter))) { reply_nterror(req,NT_STATUS_NO_MEMORY); return; } 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)) { reply_nterror(req, NT_STATUS_INVALID_PARAMETER); return; } 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))); reply_nterror(req, status); return; } } 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(req->inbuf, max_param_count, fsp->notify); /* * change_notify_reply() above has independently sent its * results */ return; } /* * No changes pending, queue the request */ status = change_notify_add_request(req->inbuf, max_param_count, filter, recursive, fsp); if (!NT_STATUS_IS_OK(status)) { reply_nterror(req, status); } return; } /**************************************************************************** Reply to an NT transact rename command. ****************************************************************************/ static void call_nt_transact_rename(connection_struct *conn, struct smb_request *req, uint16 **ppsetup, uint32 setup_count, char **ppparams, uint32 parameter_count, char **ppdata, uint32 data_count, uint32 max_data_count) { char *params = *ppparams; char *new_name = NULL; files_struct *fsp = NULL; bool replace_if_exists = False; bool dest_has_wcard = False; NTSTATUS status; TALLOC_CTX *ctx = talloc_tos(); if(parameter_count < 5) { reply_doserror(req, ERRDOS, ERRbadfunc); return; } fsp = file_fsp(SVAL(params, 0)); replace_if_exists = (SVAL(params,2) & RENAME_REPLACE_IF_EXISTS) ? True : False; if (!check_fsp(conn, req, fsp, ¤t_user)) { return; } srvstr_get_path_wcard(ctx, params, req->flags2, &new_name, params+4, parameter_count - 4, STR_TERMINATE, &status, &dest_has_wcard); if (!NT_STATUS_IS_OK(status)) { reply_nterror(req, status); return; } status = rename_internals(ctx, conn, req, fsp->fsp_name, new_name, 0, replace_if_exists, False, dest_has_wcard); if (!NT_STATUS_IS_OK(status)) { if (open_was_deferred(req->mid)) { /* We have re-scheduled this call. */ return; } reply_nterror(req, status); return; } /* * Rename was successful. */ send_nt_replies(req, NT_STATUS_OK, NULL, 0, NULL, 0); DEBUG(3,("nt transact rename from = %s, to = %s succeeded.\n", fsp->fsp_name, new_name)); return; } /****************************************************************************** Fake up a completely empty SD. *******************************************************************************/ static NTSTATUS 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")); return NT_STATUS_NO_MEMORY; } return NT_STATUS_OK; } /**************************************************************************** Reply to query a security descriptor. ****************************************************************************/ static void call_nt_transact_query_security_desc(connection_struct *conn, struct smb_request *req, 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; NTSTATUS status; if(parameter_count < 8) { reply_doserror(req, ERRDOS, ERRbadfunc); return; } fsp = file_fsp(SVAL(params,0)); if(!fsp) { reply_doserror(req, ERRDOS, ERRbadfid); return; } 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) { reply_doserror(req, ERRDOS, ERRnomem); return; } if ((mem_ctx = talloc_init("call_nt_transact_query_security_desc")) == NULL) { DEBUG(0,("call_nt_transact_query_security_desc: talloc_init failed.\n")); reply_doserror(req, ERRDOS, ERRnomem); return; } /* * Get the permissions to return. */ if (!lp_nt_acl_support(SNUM(conn))) { status = get_null_nt_acl(mem_ctx, &psd); } else { status = SMB_VFS_FGET_NT_ACL(fsp, fsp->fh->fd, security_info_wanted, &psd); } if (!NT_STATUS_IS_OK(status)) { talloc_destroy(mem_ctx); reply_nterror(req, status); return; } sd_size = sec_desc_size(psd); 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(req, NT_STATUS_BUFFER_TOO_SMALL, params, 4, *ppdata, 0); talloc_destroy(mem_ctx); return; } /* * Allocate the data we will point this at. */ data = nttrans_realloc(ppdata, sd_size); if(data == NULL) { talloc_destroy(mem_ctx); reply_doserror(req, ERRDOS, ERRnomem); return; } /* * 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); reply_unixerror(req, ERRDOS, ERRnoaccess); return; } /* * Now we can delete the security descriptor. */ talloc_destroy(mem_ctx); send_nt_replies(req, NT_STATUS_OK, params, 4, data, (int)sd_size); return; } /**************************************************************************** Reply to set a security descriptor. Map to UNIX perms or POSIX ACLs. ****************************************************************************/ static void call_nt_transact_set_security_desc(connection_struct *conn, struct smb_request *req, 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) { reply_doserror(req, ERRDOS, ERRbadfunc); return; } if((fsp = file_fsp(SVAL(params,0))) == NULL) { reply_doserror(req, ERRDOS, ERRbadfid); return; } 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) { reply_doserror(req, ERRDOS, ERRnoaccess); return; } if (!NT_STATUS_IS_OK(nt_status = set_sd( fsp, data, data_count, security_info_sent))) { reply_nterror(req, nt_status); return; } done: send_nt_replies(req, NT_STATUS_OK, NULL, 0, NULL, 0); return; } /**************************************************************************** Reply to NT IOCTL ****************************************************************************/ static void call_nt_transact_ioctl(connection_struct *conn, struct smb_request *req, 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)); reply_nterror(req, NT_STATUS_NOT_SUPPORTED); return; } 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(fidnum); /* 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(req, NT_STATUS_OK, NULL, 0, NULL, 0); return; case FSCTL_CREATE_OR_GET_OBJECT_ID: { unsigned char objid[16]; /* This should return the object-id on this file. * I think I'll make this be the inode+dev. JRA. */ DEBUG(10,("FSCTL_CREATE_OR_GET_OBJECT_ID: called on FID[0x%04X]\n",fidnum)); if (!fsp_belongs_conn(conn, req, fsp, ¤t_user)) { return; } data_count = 64; pdata = nttrans_realloc(ppdata, data_count); if (pdata == NULL) { reply_nterror(req, NT_STATUS_NO_MEMORY); return; } push_file_id_16(pdata, &fsp->file_id); memcpy(pdata+16,create_volume_objectid(conn,objid),16); push_file_id_16(pdata+32, &fsp->file_id); send_nt_replies(req, NT_STATUS_OK, NULL, 0, pdata, data_count); return; } 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)); reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT); return; 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)); reply_nterror(req, NT_STATUS_NOT_A_REPARSE_POINT); return; 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; if (!fsp_belongs_conn(conn, req, fsp, ¤t_user)) { return; } if (max_data_count < 16) { DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: max_data_count(%u) < 16 is invalid!\n", max_data_count)); reply_nterror(req, NT_STATUS_INVALID_PARAMETER); return; } 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")); reply_nterror(req, NT_STATUS_NO_MEMORY); return; } 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); reply_nterror(req, NT_STATUS_NO_MEMORY); return; } 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)); reply_nterror(req, NT_STATUS_NOT_SUPPORTED); return; } else { DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: connectpath %s, failed.\n", conn->connectpath)); reply_nterror(req, NT_STATUS_UNSUCCESSFUL); return; } } 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); reply_nterror(req, NT_STATUS_BUFFER_TOO_SMALL); return; } pdata = nttrans_realloc(ppdata, data_count); if (pdata == NULL) { talloc_destroy(shadow_data->mem_ctx); reply_nterror(req, NT_STATUS_NO_MEMORY); return; } 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(pdata, req->flags2, 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(req, NT_STATUS_OK, NULL, 0, pdata, data_count); return; } 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)); if (!fsp_belongs_conn(conn, req, fsp, ¤t_user)) { return; } /* 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(req, NT_STATUS_OK, NULL, 0, NULL, 0); return; } default: if (!logged_message) { logged_message = True; /* Only print this once... */ DEBUG(0,("call_nt_transact_ioctl(0x%x): Currently not implemented.\n", function)); } } reply_nterror(req, NT_STATUS_NOT_SUPPORTED); } #ifdef HAVE_SYS_QUOTAS /**************************************************************************** Reply to get user quota ****************************************************************************/ static void call_nt_transact_get_user_quota(connection_struct *conn, struct smb_request *req, 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)); reply_doserror(req, ERRDOS, ERRnoaccess); return; } /* * Ensure minimum number of parameters sent. */ if (parameter_count < 4) { DEBUG(0,("TRANSACT_GET_USER_QUOTA: requires %d >= 4 bytes parameters\n",parameter_count)); reply_doserror(req, ERRDOS, ERRinvalidparam); return; } /* maybe we can check the quota_fnum */ fsp = file_fsp(SVAL(params,0)); if (!CHECK_NTQUOTA_HANDLE_OK(fsp,conn)) { DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n")); reply_nterror(req, NT_STATUS_INVALID_HANDLE); return; } /* 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) { reply_doserror(req, ERRDOS, ERRnomem); return; } 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) { reply_doserror(req, ERRSRV, ERRerror); return; } /* Realloc the size of parameters and data we will return */ param_len = 4; params = nttrans_realloc(ppparams, param_len); if(params == NULL) { reply_doserror(req, ERRDOS, ERRnomem); return; } /* 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) { reply_doserror(req, ERRDOS, ERRnomem); return; } 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)); reply_doserror(req, ERRDOS, ERRunknownlevel); return; } sid_len = IVAL(pdata,4); /* Ensure this is less than 1mb. */ if (sid_len > (1024*1024)) { reply_doserror(req, ERRDOS, ERRnomem); return; } 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))); reply_doserror(req, ERRDOS, ERRunknownlevel); return; } 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) { reply_doserror(req, ERRDOS, ERRnomem); return; } pdata = nttrans_realloc(ppdata, data_len); if(pdata == NULL) { reply_doserror(req, ERRDOS, ERRnomem); return; } 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)); reply_doserror(req, ERRSRV, ERRerror); return; break; } send_nt_replies(req, nt_status, params, param_len, pdata, data_len); } /**************************************************************************** Reply to set user quota ****************************************************************************/ static void call_nt_transact_set_user_quota(connection_struct *conn, struct smb_request *req, 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)); reply_doserror(req, ERRDOS, ERRnoaccess); return; } /* * Ensure minimum number of parameters sent. */ if (parameter_count < 2) { DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= 2 bytes parameters\n",parameter_count)); reply_doserror(req, ERRDOS, ERRinvalidparam); return; } /* maybe we can check the quota_fnum */ fsp = file_fsp(SVAL(params,0)); if (!CHECK_NTQUOTA_HANDLE_OK(fsp,conn)) { DEBUG(3,("TRANSACT_GET_USER_QUOTA: no valid QUOTA HANDLE\n")); reply_nterror(req, NT_STATUS_INVALID_HANDLE); return; } if (data_count < 40) { DEBUG(0,("TRANSACT_SET_USER_QUOTA: requires %d >= %d bytes data\n",data_count,40)); reply_doserror(req, ERRDOS, ERRunknownlevel); return; } /* 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)); reply_doserror(req, ERRDOS, ERRunknownlevel); return; } /* 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? */ reply_doserror(req, ERRDOS, ERRunknownlevel); return; } #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? */ reply_doserror(req, ERRDOS, ERRunknownlevel); return; } #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? */ reply_doserror(req, ERRDOS, ERRunknownlevel); return; } #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) { reply_doserror(req, ERRSRV, ERRerror); return; } send_nt_replies(req, NT_STATUS_OK, params, param_len, pdata, data_len); } #endif /* HAVE_SYS_QUOTAS */ static void handle_nttrans(connection_struct *conn, struct trans_state *state, struct smb_request *req) { if (Protocol >= PROTOCOL_NT1) { req->flags2 |= 0x40; /* IS_LONG_NAME */ SSVAL(req->inbuf,smb_flg2,req->flags2); } /* Now we must call the relevant NT_TRANS function */ switch(state->call) { case NT_TRANSACT_CREATE: { START_PROFILE(NT_transact_create); call_nt_transact_create( conn, req, &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); call_nt_transact_ioctl( conn, req, &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); call_nt_transact_set_security_desc( conn, req, &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); call_nt_transact_notify_change( conn, req, &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); call_nt_transact_rename( conn, req, &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); call_nt_transact_query_security_desc( conn, req, &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); call_nt_transact_get_user_quota( conn, req, &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); call_nt_transact_set_user_quota( conn, req, &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,("handle_nttrans: Unknown request %d in " "nttrans call\n", state->call)); reply_doserror(req, ERRSRV, ERRerror); return; } return; } /**************************************************************************** Reply to a SMBNTtrans. ****************************************************************************/ void reply_nttrans(connection_struct *conn, struct smb_request *req) { uint32 pscnt; uint32 psoff; uint32 dscnt; uint32 dsoff; uint16 function_code; NTSTATUS result; struct trans_state *state; int size; START_PROFILE(SMBnttrans); if (req->wct < 19) { reply_nterror(req, NT_STATUS_INVALID_PARAMETER); END_PROFILE(SMBnttrans); return; } size = smb_len(req->inbuf) + 4; pscnt = IVAL(req->inbuf,smb_nt_ParameterCount); psoff = IVAL(req->inbuf,smb_nt_ParameterOffset); dscnt = IVAL(req->inbuf,smb_nt_DataCount); dsoff = IVAL(req->inbuf,smb_nt_DataOffset); function_code = SVAL(req->inbuf, smb_nt_Function); if (IS_IPC(conn) && (function_code != NT_TRANSACT_CREATE)) { reply_doserror(req, ERRSRV, ERRaccess); END_PROFILE(SMBnttrans); return; } result = allow_new_trans(conn->pending_trans, req->mid); if (!NT_STATUS_IS_OK(result)) { DEBUG(2, ("Got invalid nttrans request: %s\n", nt_errstr(result))); reply_nterror(req, result); END_PROFILE(SMBnttrans); return; } if ((state = TALLOC_P(conn->mem_ctx, struct trans_state)) == NULL) { reply_doserror(req, ERRSRV, ERRaccess); END_PROFILE(SMBnttrans); return; } state->cmd = SMBnttrans; state->mid = req->mid; state->vuid = req->vuid; state->total_data = IVAL(req->inbuf, smb_nt_TotalDataCount); state->data = NULL; state->total_param = IVAL(req->inbuf, smb_nt_TotalParameterCount); state->param = NULL; state->max_data_return = IVAL(req->inbuf,smb_nt_MaxDataCount); state->max_param_return = IVAL(req->inbuf,smb_nt_MaxParameterCount); /* setup count is in *words* */ state->setup_count = 2*CVAL(req->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(req->wct != 19 + (state->setup_count/2)) { DEBUG(2,("Invalid smb_wct %d in nttrans call (should be %d)\n", req->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))) { reply_doserror(req, ERRDOS, ERRnomem); END_PROFILE(SMBnttrans); return; } 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); reply_doserror(req, ERRDOS, ERRnomem); END_PROFILE(SMBnttrans); return; } if ((dsoff+dscnt < dsoff) || (dsoff+dscnt < dscnt)) goto bad_param; if ((smb_base(req->inbuf)+dsoff+dscnt > (char *)req->inbuf + size) || (smb_base(req->inbuf)+dsoff+dscnt < smb_base(req->inbuf))) goto bad_param; memcpy(state->data,smb_base(req->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); reply_doserror(req, ERRDOS, ERRnomem); END_PROFILE(SMBnttrans); return; } if ((psoff+pscnt < psoff) || (psoff+pscnt < pscnt)) goto bad_param; if ((smb_base(req->inbuf)+psoff+pscnt > (char *)req->inbuf + size) || (smb_base(req->inbuf)+psoff+pscnt < smb_base(req->inbuf))) goto bad_param; memcpy(state->param,smb_base(req->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); reply_doserror(req, ERRDOS, ERRnomem); END_PROFILE(SMBnttrans); return; } 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, &req->inbuf[smb_nt_SetupStart], state->setup_count); dump_data(10, (uint8 *)state->setup, state->setup_count); } if ((state->received_data == state->total_data) && (state->received_param == state->total_param)) { handle_nttrans(conn, state, req); SAFE_FREE(state->param); SAFE_FREE(state->data); TALLOC_FREE(state); END_PROFILE(SMBnttrans); return; } DLIST_ADD(conn->pending_trans, state); /* We need to send an interim response then receive the rest of the parameter/data bytes */ reply_outbuf(req, 0, 0); show_msg((char *)req->outbuf); END_PROFILE(SMBnttrans); return; bad_param: DEBUG(0,("reply_nttrans: invalid trans parameters\n")); SAFE_FREE(state->data); SAFE_FREE(state->param); TALLOC_FREE(state); reply_nterror(req, NT_STATUS_INVALID_PARAMETER); END_PROFILE(SMBnttrans); return; } /**************************************************************************** Reply to a SMBnttranss ****************************************************************************/ void reply_nttranss(connection_struct *conn, struct smb_request *req) { unsigned int pcnt,poff,dcnt,doff,pdisp,ddisp; struct trans_state *state; int size; START_PROFILE(SMBnttranss); show_msg((char *)req->inbuf); if (req->wct < 18) { reply_nterror(req, NT_STATUS_INVALID_PARAMETER); END_PROFILE(SMBnttranss); return; } for (state = conn->pending_trans; state != NULL; state = state->next) { if (state->mid == req->mid) { break; } } if ((state == NULL) || (state->cmd != SMBnttrans)) { reply_nterror(req, NT_STATUS_INVALID_PARAMETER); END_PROFILE(SMBnttranss); return; } /* Revise state->total_param and state->total_data in case they have changed downwards */ if (IVAL(req->inbuf, smb_nts_TotalParameterCount) < state->total_param) { state->total_param = IVAL(req->inbuf, smb_nts_TotalParameterCount); } if (IVAL(req->inbuf, smb_nts_TotalDataCount) < state->total_data) { state->total_data = IVAL(req->inbuf, smb_nts_TotalDataCount); } size = smb_len(req->inbuf) + 4; pcnt = IVAL(req->inbuf,smb_nts_ParameterCount); poff = IVAL(req->inbuf, smb_nts_ParameterOffset); pdisp = IVAL(req->inbuf, smb_nts_ParameterDisplacement); dcnt = IVAL(req->inbuf, smb_nts_DataCount); ddisp = IVAL(req->inbuf, smb_nts_DataDisplacement); doff = IVAL(req->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(req->inbuf) + poff + pcnt > (char *)req->inbuf + size) || (smb_base(req->inbuf) + poff + pcnt < smb_base(req->inbuf))) goto bad_param; if (state->param + pdisp < state->param) goto bad_param; memcpy(state->param+pdisp, smb_base(req->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(req->inbuf) + doff + dcnt > (char *)req->inbuf + size) || (smb_base(req->inbuf) + doff + dcnt < smb_base(req->inbuf))) goto bad_param; if (state->data + ddisp < state->data) goto bad_param; memcpy(state->data+ddisp, smb_base(req->inbuf)+doff, dcnt); } if ((state->received_param < state->total_param) || (state->received_data < state->total_data)) { END_PROFILE(SMBnttranss); return; } /* * construct_reply_common will copy smb_com from inbuf to * outbuf. SMBnttranss is wrong here. */ SCVAL(req->inbuf,smb_com,SMBnttrans); handle_nttrans(conn, state, req); DLIST_REMOVE(conn->pending_trans, state); SAFE_FREE(state->data); SAFE_FREE(state->param); TALLOC_FREE(state); END_PROFILE(SMBnttranss); return; 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); reply_nterror(req, NT_STATUS_INVALID_PARAMETER); END_PROFILE(SMBnttranss); return; }