*/
#include "includes.h"
+#include "nterr.h"
extern int DEBUGLEVEL;
extern int Protocol;
-extern int chain_fnum;
-extern connection_struct Connections[];
-extern files_struct Files[];
extern int Client;
-extern int oplock_sock;
extern int smb_read_error;
extern int global_oplock_break;
+extern int chain_size;
extern BOOL case_sensitive;
extern BOOL case_preserve;
extern BOOL short_case_preserve;
+static void remove_pending_change_notify_requests_by_mid(int mid);
+
static char *known_nt_pipes[] = {
"\\LANMAN",
"\\srvsvc",
"\\ntsvcs",
"\\lsass",
"\\lsarpc",
+ "\\winreg",
NULL
};
+/****************************************************************************
+ 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 *outbuf, int bufsize, 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 there genuinely are no parameters or data to send just send
+ * the empty packet.
+ */
+
+ if(params_to_send == 0 && data_to_send == 0) {
+ send_smb(Client,outbuf);
+ 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 */
+ send_smb(Client,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 -1;
+ }
+ }
+
+ return 0;
+}
+
+/****************************************************************************
+ (Hopefully) temporary call to fix bugs in NT5.0beta2. This OS sends unicode
+ strings in NT calls AND DOESN'T SET THE UNICODE BIT !!!!!!!
+****************************************************************************/
+
+static void my_wcstombs(char *dst, uint16 *src, size_t len)
+{
+ size_t i;
+
+ for(i = 0; i < len; i++)
+ dst[i] = (char)SVAL(src,i*2);
+}
+
+static void get_filename( char *fname, char *inbuf, int data_offset, int data_len, int fname_len)
+{
+ if(data_len - fname_len > 1) {
+ /*
+ * NT 5.0 Beta 2 has kindly sent us a UNICODE string
+ * without bothering to set the unicode bit. How kind.
+ *
+ * Firstly - ensure that the data offset is aligned
+ * on a 2 byte boundary - add one if not.
+ */
+ fname_len = fname_len/2;
+ if(data_offset & 1)
+ data_offset++;
+ my_wcstombs( fname, (uint16 *)(inbuf+data_offset), fname_len);
+ } else {
+ StrnCpy(fname,inbuf+data_offset,fname_len);
+ }
+ fname[fname_len] = '\0';
+}
+
/****************************************************************************
Save case statics.
****************************************************************************/
}
/****************************************************************************
- reply to an NT create and X call.
+ Utility function to map create disposition.
****************************************************************************/
-int reply_ntcreate_and_X(char *inbuf,char *outbuf,int length,int bufsize)
-{
- pstring fname;
- int cnum = SVAL(inbuf,smb_tid);
- int fnum = -1;
- uint32 flags = SIVAL(inbuf,smb_ntcreate_Flags);
- uint32 desired_access = SIVAL(inbuf,smb_ntcreate_DesiredAccess);
- uint32 file_attributes = SIVAL(inbuf,smb_ntcreate_FileAttributes);
- uint32 share_access = SIVAL(inbuf,smb_ntcreate_ShareAccess);
- uint32 create_disposition = SIVAL(inbuf,smb_ntcreate_CreateDisposition);
- uint32 fname_len = MIN(((uint32)SSVAL(inbuf,smb_ntcreate_NameLength)),
- ((uint32)sizeof(fname)-1));
- 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 = flags & (REQUEST_OPLOCK|REQUEST_BATCH_OPLOCK);
- int unixmode;
- int fmode=0,mtime=0,rmode=0;
- off_t file_size = 0;
- struct stat sbuf;
- int smb_action = 0;
- BOOL bad_path = False;
- files_struct *fsp;
- char *p = NULL;
-
- /* If it's an IPC, pass off the pipe handler. */
- if (IS_IPC(cnum))
- return nt_open_pipe_and_X(inbuf,outbuf,length,bufsize);
-
- /* If it's a request for a directory open, fail it. */
- if(flags & OPEN_DIRECTORY)
- return(ERROR(ERRDOS,ERRnoaccess));
-
- /*
- * We need to construct the open_and_X ofun value from the
- * NT values, as that's what our code is structured to accept.
- */
+static int map_create_disposition( uint32 create_disposition)
+{
+ int ret;
switch( create_disposition ) {
- case CREATE_NEW:
+ case FILE_CREATE:
/* create if not exist, fail if exist */
- smb_ofun = 0x10;
+ ret = (FILE_CREATE_IF_NOT_EXIST|FILE_EXISTS_FAIL);
break;
- case CREATE_ALWAYS:
+ case FILE_SUPERSEDE:
+ case FILE_OVERWRITE_IF:
/* create if not exist, trunc if exist */
- smb_ofun = 0x12;
+ ret = (FILE_CREATE_IF_NOT_EXIST|FILE_EXISTS_TRUNCATE);
break;
- case OPEN_EXISTING:
+ case FILE_OPEN:
/* fail if not exist, open if exists */
- smb_ofun = 0x1;
+ ret = (FILE_FAIL_IF_NOT_EXIST|FILE_EXISTS_OPEN);
break;
- case OPEN_ALWAYS:
+ case FILE_OPEN_IF:
/* create if not exist, open if exists */
- smb_ofun = 0x11;
+ ret = (FILE_CREATE_IF_NOT_EXIST|FILE_EXISTS_OPEN);
break;
- case TRUNCATE_EXISTING:
+ case FILE_OVERWRITE:
/* fail if not exist, truncate if exists */
- smb_ofun = 0x2;
+ ret = (FILE_FAIL_IF_NOT_EXIST|FILE_EXISTS_TRUNCATE);
break;
default:
- DEBUG(0,("reply_ntcreate_and_X: Incorrect value for create_disposition = %d\n",
+ DEBUG(0,("map_create_disposition: Incorrect value for create_disposition = %d\n",
create_disposition ));
- return(ERROR(ERRDOS,ERRbadaccess));
+ return -1;
}
- /*
- * Now contruct the smb_open_mode value from the desired access
- * and the share access.
- */
+ 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( char *fname, uint32 desired_access, uint32 share_access, uint32 file_attributes)
+{
+ int smb_open_mode = -1;
switch( desired_access & (FILE_READ_DATA|FILE_WRITE_DATA) ) {
case FILE_READ_DATA:
- smb_open_mode = 0;
+ smb_open_mode = DOS_OPEN_RDONLY;
break;
case FILE_WRITE_DATA:
- smb_open_mode = 1;
+ smb_open_mode = DOS_OPEN_WRONLY;
break;
case FILE_READ_DATA|FILE_WRITE_DATA:
- smb_open_mode = 2;
+ smb_open_mode = DOS_OPEN_RDWR;
break;
- default:
- DEBUG(0,("reply_ntcreate_and_X: Incorrect value for desired_access = %x\n",
- desired_access));
- return(ERROR(ERRDOS,ERRbadaccess));
}
- /* Add in the requested share mode - ignore FILE_SHARE_DELETE for now. */
+ /*
+ * 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 & (DELETE_ACCESS|WRITE_DAC_ACCESS|WRITE_OWNER_ACCESS|
+ FILE_EXECUTE|FILE_READ_ATTRIBUTES|
+ FILE_WRITE_ATTRIBUTES|READ_CONTROL_ACCESS))
+ 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;
+
+ /* Add in the requested share mode. */
switch( share_access & (FILE_SHARE_READ|FILE_SHARE_WRITE)) {
case FILE_SHARE_READ:
- smb_open_mode |= (DENY_WRITE<<4);
+ smb_open_mode |= SET_DENY_MODE(DENY_WRITE);
break;
case FILE_SHARE_WRITE:
- smb_open_mode |= (DENY_READ<<4);
+ smb_open_mode |= SET_DENY_MODE(DENY_READ);
break;
case (FILE_SHARE_READ|FILE_SHARE_WRITE):
- smb_open_mode |= (DENY_NONE<<4);
+ smb_open_mode |= SET_DENY_MODE(DENY_NONE);
break;
case FILE_SHARE_NONE:
- smb_open_mode |= (DENY_ALL<<4);
+ smb_open_mode |= SET_DENY_MODE(DENY_ALL);
break;
}
/*
- * Handle a O_SYNC request.
+ * Handle an O_SYNC request.
*/
+
if(file_attributes & FILE_FLAG_WRITE_THROUGH)
- smb_open_mode |= (1<<14);
+ 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;
+}
+
+/*
+ * 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)
+{
+ 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"));
+}
+
+/****************************************************************************
+ 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;
+
+ /*
+ * HACK alert.... see above - JRA.
+ */
+
+ if(fail_next_srvsvc && (time(NULL) > fail_time + HACK_FAIL_TIME)) {
+ fail_next_srvsvc = False;
+ fail_time = (time_t)0;
+ DEBUG(10,("nt_open_pipe: End of timeout close of \\srvsvc pipe for print fix.\n"));
+ }
+
+ if(fail_next_srvsvc && strequal(fname, "\\srvsvc")) {
+ fail_next_srvsvc = False;
+ DEBUG(10,("nt_open_pipe: Deliberately failing open of \\srvsvc pipe for print fix.\n"));
+ return(ERROR(ERRSRV,ERRaccess));
+ }
+
+ /*
+ * End hack alert.... see above - JRA.
+ */
+
+ if ( known_nt_pipes[i] == NULL )
+ return(ERROR(ERRSRV,ERRaccess));
+
+ /* Strip \\ off the name. */
+ fname++;
+
+ DEBUG(3,("nt_open_pipe: Known pipe %s opening.\n", fname));
+
+ p = open_rpc_pipe_p(fname, conn, vuid);
+ if (!p)
+ return(ERROR(ERRSRV,ERRnofids));
+
+ *ppnum = p->pnum;
+
+ return 0;
+}
+
+/****************************************************************************
+ Reply to an NT create and X call.
+****************************************************************************/
+
+int reply_ntcreate_and_X(connection_struct *conn,
+ char *inbuf,char *outbuf,int length,int bufsize)
+{
+ 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);
+ uint32 fname_len = MIN(((uint32)SVAL(inbuf,smb_ntcreate_NameLength)),
+ ((uint32)sizeof(fname)-1));
+ 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 pnum = -1;
+ 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;
+
+ /*
+ * 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,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 || !dir_fsp->is_directory)
+ 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++;
+ }
+
+ if(fname_len + dir_name_len >= sizeof(pstring))
+ return(ERROR(ERRSRV,ERRfilespecs));
+
+ get_filename(&fname[dir_name_len], inbuf, smb_buf(inbuf)-inbuf,
+ smb_buflen(inbuf),fname_len);
+#if 0
+ StrnCpy(&fname[dir_name_len], smb_buf(inbuf),fname_len);
+ fname[dir_name_len+fname_len] = '\0';
+#endif
+
+ } else {
+
+ get_filename(fname, inbuf, smb_buf(inbuf)-inbuf,
+ smb_buflen(inbuf),fname_len);
+
+#if 0
+ StrnCpy(fname,smb_buf(inbuf),fname_len);
+ fname[fname_len] = '\0';
+#endif
+ }
+
+ /* If it's an IPC, use the pipe handler. */
+
+ if (IS_IPC(conn) && lp_nt_pipe_support() && lp_security() != SEC_SHARE)
+ {
+ int ret = nt_open_pipe(fname, conn, inbuf, outbuf, &pnum);
+ if(ret != 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,("reply_ntcreate_and_X: open pipe = %s\n", fname));
+
+ return chain_reply(inbuf,outbuf,length,bufsize);
+ }
+
+ /*
+ * Now contruct the smb_open_mode value from the filename,
+ * desired access and the share access.
+ */
+
+ if((smb_open_mode = map_share_mode(fname, desired_access,
+ share_access,
+ file_attributes)) == -1) {
+ return(ERROR(ERRDOS,ERRbadaccess));
+ }
+
+ /*
+ * Ordinary file or directory.
+ */
+
+ /*
+ * Check if POSIX semantics are wanted.
+ */
+
+ set_posix_case_semantics(file_attributes);
+
+ unix_convert(fname,conn,0,&bad_path,NULL);
+
+ fsp = file_new();
+ if (!fsp) {
+ restore_case_semantics(file_attributes);
+ return(ERROR(ERRSRV,ERRnofids));
+ }
+
+ if (!check_name(fname,conn)) {
+ if((errno == ENOENT) && bad_path) {
+ unix_ERR_class = ERRDOS;
+ unix_ERR_code = ERRbadpath;
+ }
+ file_free(fsp);
+
+ restore_case_semantics(file_attributes);
+
+ return(UNIXERROR(ERRDOS,ERRnoaccess));
+ }
+
+ unixmode = unix_mode(conn,smb_attr | aARCH);
+
+ oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
+ oplock_request |= (flags & REQUEST_BATCH_OPLOCK) ? BATCH_OPLOCK : 0;
+
+ /*
+ * If it's a request for a directory open, deal with it separately.
+ */
+
+ if(create_options & FILE_DIRECTORY_FILE) {
+ oplock_request = 0;
+
+ open_directory(fsp, conn, fname, smb_ofun,
+ unixmode, &smb_action);
+
+ restore_case_semantics(file_attributes);
+
+ if(!fsp->open) {
+ file_free(fsp);
+ 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. */
+
+ open_file_shared(fsp,conn,fname,smb_open_mode,
+ smb_ofun,unixmode,
+ oplock_request,&rmode,&smb_action);
+
+ if (!fsp->open) {
+ /* We cheat here. The only case we
+ * care about 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. JRA. */
+
+ if(errno == EISDIR) {
+ oplock_request = 0;
+
+ open_directory(fsp, conn, fname, smb_ofun, unixmode, &smb_action);
+
+ if(!fsp->open) {
+ file_free(fsp);
+ restore_case_semantics(file_attributes);
+ return(UNIXERROR(ERRDOS,ERRnoaccess));
+ }
+ } else {
+ if((errno == ENOENT) && bad_path) {
+ unix_ERR_class = ERRDOS;
+ unix_ERR_code = ERRbadpath;
+ }
+
+ file_free(fsp);
+
+ restore_case_semantics(file_attributes);
+
+ return(UNIXERROR(ERRDOS,ERRnoaccess));
+ }
+ }
+ }
+
+ if(fsp->is_directory) {
+ if(dos_stat(fsp->fsp_name, &sbuf) != 0) {
+ close_directory(fsp);
+ restore_case_semantics(file_attributes);
+ return(ERROR(ERRDOS,ERRnoaccess));
+ }
+ } else {
+ if (sys_fstat(fsp->fd_ptr->fd,&sbuf) != 0) {
+ close_file(fsp,False);
+ restore_case_semantics(file_attributes);
+ return(ERROR(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);
+ 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 && fsp->granted_oplock)
+ 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.
+ */
+
+ SCVAL(p,0, (smb_action & EXTENDED_OPLOCK_GRANTED ? 1 : 0));
+ p++;
+ SSVAL(p,0,fsp->fnum);
+ p += 2;
+ SIVAL(p,0,smb_action);
+ p += 4;
+
+ /* Create time. */
+ put_long_date(p,get_create_time(&sbuf,lp_fake_dir_create_times(SNUM(conn))));
+ 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));
+
+ return chain_reply(inbuf,outbuf,length,bufsize);
+}
+
+/****************************************************************************
+ 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;
+ uint32 flags = IVAL(params,0);
+ uint32 desired_access = IVAL(params,8);
+ uint32 file_attributes = IVAL(params,20);
+ uint32 share_access = IVAL(params,24);
+ uint32 create_disposition = IVAL(params,28);
+ uint32 create_options = IVAL(params,32);
+ uint32 fname_len = MIN(((uint32)IVAL(params,44)),
+ ((uint32)sizeof(fname)-1));
+ uint16 root_dir_fid = (uint16)IVAL(params,4);
+ 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 pnum = -1;
+ 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;
+
+ /*
+ * 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,ERRbadaccess));
/*
- * Check if POSIX semantics are wanted.
+ * Get the file name.
*/
- set_posix_case_semantics(file_attributes);
+ 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;
- StrnCpy(fname,smb_buf(inbuf),fname_len);
- unix_convert(fname,cnum,0,&bad_path);
-
- fnum = find_free_file();
- if (fnum < 0) {
- restore_case_semantics(file_attributes);
- return(ERROR(ERRSRV,ERRnofids));
- }
+ if(!dir_fsp || !dir_fsp->is_directory)
+ return(ERROR(ERRDOS,ERRbadfid));
- if (!check_name(fname,cnum)) {
- if((errno == ENOENT) && bad_path) {
- unix_ERR_class = ERRDOS;
- unix_ERR_code = ERRbadpath;
+ /*
+ * 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++;
}
- Files[fnum].reserved = False;
- restore_case_semantics(file_attributes);
+ if(fname_len + dir_name_len >= sizeof(pstring))
+ return(ERROR(ERRSRV,ERRfilespecs));
- return(UNIXERROR(ERRDOS,ERRnoaccess));
- }
-
- unixmode = unix_mode(cnum,smb_attr | aARCH);
-
- open_file_shared(fnum,cnum,fname,smb_open_mode,smb_ofun,unixmode,
- oplock_request,&rmode,&smb_action);
+ StrnCpy(&fname[dir_name_len], params+53, fname_len);
+ fname[dir_name_len+fname_len] = '\0';
+
+ } else {
+ StrnCpy(fname,params+53,fname_len);
+ fname[fname_len] = '\0';
+ }
+
+ /* If it's an IPC, use the pipe handler. */
+ if (IS_IPC(conn)) {
+ int ret = nt_open_pipe(fname, conn, inbuf, outbuf, &pnum);
+ if(ret != 0)
+ return ret;
+ smb_action = FILE_WAS_OPENED;
+ } else {
+ /*
+ * Check if POSIX semantics are wanted.
+ */
+
+ set_posix_case_semantics(file_attributes);
- fsp = &Files[fnum];
+ unix_convert(fname,conn,0,&bad_path,NULL);
- if (!fsp->open) {
- if((errno == ENOENT) && bad_path) {
- unix_ERR_class = ERRDOS;
- unix_ERR_code = ERRbadpath;
+ fsp = file_new();
+ if (!fsp) {
+ restore_case_semantics(file_attributes);
+ return(ERROR(ERRSRV,ERRnofids));
}
- Files[fnum].reserved = False;
- restore_case_semantics(file_attributes);
+ if (!check_name(fname,conn)) {
+ if((errno == ENOENT) && bad_path) {
+ unix_ERR_class = ERRDOS;
+ unix_ERR_code = ERRbadpath;
+ }
+ file_free(fsp);
+
+ restore_case_semantics(file_attributes);
- return(UNIXERROR(ERRDOS,ERRnoaccess));
- }
+ return(UNIXERROR(ERRDOS,ERRnoaccess));
+ }
- if (fstat(fsp->fd_ptr->fd,&sbuf) != 0) {
- close_file(fnum,False);
+ unixmode = unix_mode(conn,smb_attr | aARCH);
+
+ oplock_request = (flags & REQUEST_OPLOCK) ? EXCLUSIVE_OPLOCK : 0;
+ oplock_request |= (flags & REQUEST_BATCH_OPLOCK) ? BATCH_OPLOCK : 0;
- restore_case_semantics(file_attributes);
+ /*
+ * Now contruct the smb_open_mode value from the desired access
+ * and the share access.
+ */
- return(ERROR(ERRDOS,ERRnoaccess));
- }
+ if((smb_open_mode = map_share_mode( fname, desired_access, share_access, file_attributes)) == -1)
+ return(ERROR(ERRDOS,ERRbadaccess));
+
+ /*
+ * 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.
+ */
+
+ open_directory(fsp, conn, fname, smb_ofun, unixmode, &smb_action);
+
+ if(!fsp->open) {
+ file_free(fsp);
+ return(UNIXERROR(ERRDOS,ERRnoaccess));
+ }
+ } else {
+
+ /*
+ * Ordinary file case.
+ */
+
+ open_file_shared(fsp,conn,fname,smb_open_mode,smb_ofun,unixmode,
+ oplock_request,&rmode,&smb_action);
+
+ if (!fsp->open) {
+ if((errno == ENOENT) && bad_path) {
+ unix_ERR_class = ERRDOS;
+ unix_ERR_code = ERRbadpath;
+ }
+ file_free(fsp);
+
+ restore_case_semantics(file_attributes);
+
+ return(UNIXERROR(ERRDOS,ERRnoaccess));
+ }
- size = sbuf.st_size;
- fmode = dos_mode(cnum,fname,&sbuf);
- mtime = sbuf.st_mtime;
- if (fmode & aDIR) {
- close_file(fnum,False);
+ if (sys_fstat(fsp->fd_ptr->fd,&sbuf) != 0) {
+ close_file(fsp,False);
- restore_case_semantics(file_attributes);
+ restore_case_semantics(file_attributes);
- return(ERROR(ERRDOS,ERRnoaccess));
- }
+ 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.
- */
+ 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(cnum))) {
- smb_action |= EXTENDED_OPLOCK_GRANTED;
- }
-
- if(oplock_request && fsp->granted_oplock) {
- smb_action |= EXTENDED_OPLOCK_GRANTED;
- }
+ if (oplock_request && lp_fake_oplocks(SNUM(conn)))
+ smb_action |= EXTENDED_OPLOCK_GRANTED;
- set_message(outbuf,34,0,True);
+ if(oplock_request && fsp->granted_oplock)
+ smb_action |= EXTENDED_OPLOCK_GRANTED;
+ }
+ }
- p = outbuf + smb_vwv2;
+ restore_case_semantics(file_attributes);
- /*
- * Currently as we don't support level II oplocks we just report
- * exclusive & batch here.
- */
+ /* Realloc the size of parameters and data we will return */
+ params = *ppparams = Realloc(*ppparams, 69);
+ if(params == NULL)
+ return(ERROR(ERRDOS,ERRnomem));
- SCVAL(p,0, (smb_action & EXTENDED_OPLOCK_GRANTED ? 3 : 0));
- p++;
- SSVAL(p,0,fnum);
+ p = params;
+ SCVAL(p,0, (smb_action & EXTENDED_OPLOCK_GRANTED ? 1 : 0));
+ p += 2;
+ if (IS_IPC(conn)) {
+ SSVAL(p,0,pnum);
+ } else {
+ SSVAL(p,0,fsp->fnum);
+ }
p += 2;
SIVAL(p,0,smb_action);
- p += 4;
-
- /* Create time. */
- put_long_date(p,get_create_time(&sbuf,lp_fake_dir_create_times(SNUM(cnum))));
- 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 += 12;
- SIVAL(p,0, size & 0xFFFFFFFF);
- SIVAL(p,4, (size >> 32));
- chain_fnum = fnum;
-
- restore_case_semantics(file_attributes);
+ if (IS_IPC(conn)) {
+ /*
+ * Deal with pipe return.
+ */
+ 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); /* ? */
+ } else {
+ /*
+ * Deal with file return.
+ */
+ /* Create time. */
+ put_long_date(p,get_create_time(&sbuf,lp_fake_dir_create_times(SNUM(conn))));
+ 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);
+ }
+
+ /* Send the required number of replies */
+ send_nt_replies(outbuf, bufsize, params, 69, *ppdata, 0);
+
+ return -1;
+}
- return chain_reply(inbuf,outbuf,length,bufsize);
+/****************************************************************************
+ 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);
+ 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));
+
+ return(-1);
}
/****************************************************************************
- reply to a NT_TRANSACT_CREATE call (needs to process SD's).
+ Reply to an unsolicited SMBNTtranss - just ignore it!
****************************************************************************/
+int reply_nttranss(connection_struct *conn,
+ char *inbuf,char *outbuf,int length,int bufsize)
+{
+ DEBUG(4,("Ignoring nttranss of length %d\n",length));
+ return(-1);
+}
-static int call_nt_transact_create(char *inbuf, char *outbuf, int bufsize, int cnum,
- char **setup, char **params, char **data)
+/****************************************************************************
+ 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 = *pparams;
- uint32 flags = SIVAL(params,0);
- uint32 desired_access =
- uint32 file_attributes = SIVAL(inbuf,smb_ntcreate_FileAttributes);
- uint32 share_access = SIVAL(inbuf,smb_ntcreate_ShareAccess);
- uint32 create_disposition = SIVAL(inbuf,smb_ntcreate_CreateDisposition);
- uint32 fname_len = MIN(((uint32)SSVAL(inbuf,smb_ntcreate_NameLength)),
- ((uint32)sizeof(fname)-1));
- int smb_ofun;
- int smb_open_mode;
- int smb_attr = (file_attributes & SAMBA_ATTRIBUTES_MASK);
+ 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;
+ uint32 fname_len = MIN((((uint32)IVAL(inbuf,smb_nt_TotalParameterCount)-4)),
+ ((uint32)sizeof(new_name)-1));
+ int outsize = 0;
+
+ CHECK_FSP(fsp, conn);
+ StrnCpy(new_name,params+4,fname_len);
+ new_name[fname_len] = '\0';
+
+ outsize = rename_internals(conn, inbuf, outbuf, fsp->fsp_name,
+ new_name, replace_if_exists);
+ if(outsize == 0) {
+ /*
+ * Rename was successful.
+ */
+ send_nt_replies(outbuf, bufsize, NULL, 0, NULL, 0);
+
+ DEBUG(3,("nt transact rename from = %s, to = %s succeeded.\n",
+ fsp->fsp_name, new_name));
+
+ outsize = -1;
+ }
+
+ return(outsize);
+}
+
+/****************************************************************************
+ This is the structure to queue to implement NT change
+ notify. It consists of smb_size bytes stored from the
+ transact command (to keep the mid, tid etc around).
+ Plus the fid to examine and the time to check next.
+*****************************************************************************/
+
+typedef struct {
+ ubi_slNode msg_next;
+ files_struct *fsp;
+ connection_struct *conn;
+ time_t next_check_time;
+ time_t modify_time; /* Info from the directory we're monitoring. */
+ time_t status_time; /* Info from the directory we're monitoring. */
+ char request_buf[smb_size];
+} change_notify_buf;
+
+static ubi_slList change_notify_queue = { NULL, (ubi_slNodePtr)&change_notify_queue, 0};
+
+/****************************************************************************
+ Setup the common parts of the return packet and send it.
+*****************************************************************************/
+
+static void change_notify_reply_packet(char *inbuf, int error_class, uint32 error_code)
+{
+ extern int Client;
+ char outbuf[smb_size+38];
+
+ memset(outbuf, '\0', sizeof(outbuf));
+ construct_reply_common(inbuf, outbuf);
+
+ /*
+ * If we're returning a 'too much in the directory changed' we need to
+ * set this is an NT error status flags. If we don't then the (probably
+ * untested) code in the NT redirector has a bug in that it doesn't re-issue
+ * the change notify.... Ah - I *love* it when I get so deeply into this I
+ * can even determine how MS failed to test stuff and why.... :-). JRA.
+ */
+
+ if(error_class == 0) /* NT Error. */
+ SSVAL(outbuf,smb_flg2, SVAL(outbuf,smb_flg2) | FLAGS2_32_BIT_ERROR_CODES);
+
+ ERROR(error_class,error_code);
+
+ /*
+ * Seems NT needs a transact command with an error code
+ * in it. This is a longer packet than a simple error.
+ */
+ set_message(outbuf,18,0,False);
+
+ send_smb(Client,outbuf);
+}
+
+/****************************************************************************
+ Delete entries by fnum from the change notify pending queue.
+*****************************************************************************/
+void remove_pending_change_notify_requests_by_fid(files_struct *fsp)
+{
+ change_notify_buf *cnbp = (change_notify_buf *)ubi_slFirst( &change_notify_queue );
+ change_notify_buf *prev = NULL;
+
+ while(cnbp != NULL) {
+ if(cnbp->fsp->fnum == fsp->fnum) {
+ free((char *)ubi_slRemNext( &change_notify_queue, prev));
+ cnbp = (change_notify_buf *)(prev ? ubi_slNext(prev) : ubi_slFirst(&change_notify_queue));
+ continue;
+ }
+
+ prev = cnbp;
+ cnbp = (change_notify_buf *)ubi_slNext(cnbp);
+ }
+}
+
+/****************************************************************************
+ Delete entries by mid from the change notify pending queue. Always send reply.
+*****************************************************************************/
+
+static void remove_pending_change_notify_requests_by_mid(int mid)
+{
+ change_notify_buf *cnbp = (change_notify_buf *)ubi_slFirst( &change_notify_queue );
+ change_notify_buf *prev = NULL;
+
+ while(cnbp != NULL) {
+ if(SVAL(cnbp->request_buf,smb_mid) == mid) {
+ change_notify_reply_packet(cnbp->request_buf,0,NT_STATUS_CANCELLED);
+ free((char *)ubi_slRemNext( &change_notify_queue, prev));
+ cnbp = (change_notify_buf *)(prev ? ubi_slNext(prev) : ubi_slFirst(&change_notify_queue));
+ continue;
+ }
+
+ prev = cnbp;
+ cnbp = (change_notify_buf *)ubi_slNext(cnbp);
+ }
+}
+
+/****************************************************************************
+ Process the change notify queue. Note that this is only called as root.
+*****************************************************************************/
+
+void process_pending_change_notify_queue(time_t t)
+{
+ change_notify_buf *cnbp = (change_notify_buf *)ubi_slFirst( &change_notify_queue );
+ change_notify_buf *prev = NULL;
+
+ if(cnbp == NULL)
+ return;
+
+ if(cnbp->next_check_time >= t)
+ return;
+
+ /*
+ * It's time to check. Go through the queue and see if
+ * the timestamps changed.
+ */
+
+ while((cnbp != NULL) && (cnbp->next_check_time <= t)) {
+ SMB_STRUCT_STAT st;
+ files_struct *fsp = cnbp->fsp;
+ connection_struct *conn = cnbp->conn;
+ uint16 vuid = (lp_security() == SEC_SHARE) ? UID_FIELD_INVALID :
+ SVAL(cnbp->request_buf,smb_uid);
+
+ /*
+ * Ensure we don't have any old chain_fsp values
+ * sitting around....
+ */
+ chain_size = 0;
+ file_chain_reset();
+
+ if(!become_user(conn,vuid)) {
+ DEBUG(0,("process_pending_change_notify_queue: Unable to become user vuid=%d.\n",
+ vuid ));
+ /*
+ * Remove the entry and return an error to the client.
+ */
+ change_notify_reply_packet(cnbp->request_buf,ERRSRV,ERRaccess);
+ free((char *)ubi_slRemNext( &change_notify_queue, prev));
+ cnbp = (change_notify_buf *)(prev ? ubi_slNext(prev) : ubi_slFirst(&change_notify_queue));
+ continue;
+ }
+
+ if(!become_service(conn,True)) {
+ DEBUG(0,("process_pending_change_notify_queue: Unable to become service Error was %s.\n", strerror(errno) ));
+ /*
+ * Remove the entry and return an error to the client.
+ */
+ change_notify_reply_packet(cnbp->request_buf,ERRSRV,ERRaccess);
+ free((char *)ubi_slRemNext( &change_notify_queue, prev));
+ cnbp = (change_notify_buf *)(prev ? ubi_slNext(prev) : ubi_slFirst(&change_notify_queue));
+ unbecome_user();
+ continue;
+ }
+
+ if(dos_stat(fsp->fsp_name, &st) < 0) {
+ DEBUG(0,("process_pending_change_notify_queue: Unable to stat directory %s. \
+Error was %s.\n", fsp->fsp_name, strerror(errno) ));
+ /*
+ * Remove the entry and return an error to the client.
+ */
+ change_notify_reply_packet(cnbp->request_buf,ERRSRV,ERRaccess);
+ free((char *)ubi_slRemNext( &change_notify_queue, prev));
+ cnbp = (change_notify_buf *)(prev ? ubi_slNext(prev) : ubi_slFirst(&change_notify_queue));
+ unbecome_user();
+ continue;
+ }
+
+ if(cnbp->modify_time != st.st_mtime ||
+ cnbp->status_time != st.st_ctime) {
+ /*
+ * Remove the entry and return a change notify to the client.
+ */
+ DEBUG(5,("process_pending_change_notify_queue: directory name = %s changed\n",
+ fsp->fsp_name ));
+ change_notify_reply_packet(cnbp->request_buf,0,NT_STATUS_NOTIFY_ENUM_DIR);
+ free((char *)ubi_slRemNext( &change_notify_queue, prev));
+ cnbp = (change_notify_buf *)(prev ? ubi_slNext(prev) : ubi_slFirst(&change_notify_queue));
+ unbecome_user();
+ continue;
+ }
+
+ unbecome_user();
+
+ /*
+ * Move to the next in the list.
+ */
+ prev = cnbp;
+ cnbp = (change_notify_buf *)ubi_slNext(cnbp);
+ }
}
/****************************************************************************
- reply to an unsolicited SMBNTtranss - just ignore it!
+ 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;
+ change_notify_buf *cnbp;
+ SMB_STRUCT_STAT st;
-int reply_nttranss(char *inbuf,char *outbuf,int length,int bufsize)
+ fsp = file_fsp(setup,4);
+
+ DEBUG(3,("call_nt_transact_notify_change\n"));
+
+ if(!fsp)
+ return(ERROR(ERRDOS,ERRbadfid));
+
+ if((!fsp->open) || (!fsp->is_directory) || (conn != fsp->conn))
+ return(ERROR(ERRDOS,ERRbadfid));
+
+ /*
+ * Now queue an entry on the notify change stack. We timestamp
+ * the entry we are adding so that we know when to scan next.
+ * We only need to save smb_size bytes from this incoming packet
+ * as we will always by returning a 'read the directory yourself'
+ * error.
+ */
+
+ if((cnbp = (change_notify_buf *)malloc(sizeof(change_notify_buf))) == NULL) {
+ DEBUG(0,("call_nt_transact_notify_change: Malloc fail (2) !\n" ));
+ return -1;
+ }
+
+ /*
+ * Store the current timestamp on the directory we are monitoring.
+ */
+
+ if(dos_stat(fsp->fsp_name, &st) < 0) {
+ DEBUG(0,("call_nt_transact_notify_change: Unable to stat name = %s. \
+Error was %s\n", fsp->fsp_name, strerror(errno) ));
+ free((char *)cnbp);
+ return(UNIXERROR(ERRDOS,ERRbadfid));
+ }
+
+ memcpy(cnbp->request_buf, inbuf, smb_size);
+ cnbp->fsp = fsp;
+ cnbp->conn = conn;
+ cnbp->modify_time = st.st_mtime;
+ cnbp->status_time = st.st_ctime;
+
+ cnbp->next_check_time = time(NULL) + lp_change_notify_timeout();
+
+ /*
+ * Adding to the tail enables us to check only
+ * the head when scanning for change, as this entry
+ * is forced to have the first timeout expiration.
+ */
+
+ ubi_slAddTail(&change_notify_queue, cnbp);
+
+ DEBUG(3,("call_nt_transact_notify_change: notify change called on directory \
+name = %s\n", fsp->fsp_name ));
+
+ return -1;
+}
+
+/****************************************************************************
+ Reply to query a security descriptor - currently this is not implemented (it
+ is planned to be though).
+****************************************************************************/
+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)
{
- DEBUG(4,("Ignoring nttranss of length %d\n",length));
- return(-1);
+ static BOOL logged_message = False;
+
+ if(!logged_message) {
+ DEBUG(0,("call_nt_transact_query_security_desc: Currently not implemented.\n"));
+ logged_message = True; /* Only print this once... */
+ }
+
+ return(ERROR(ERRSRV,ERRnosupport));
}
+
+/****************************************************************************
+ Reply to set a security descriptor - currently this is not implemented (it
+ is planned to be though).
+****************************************************************************/
+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)
+{
+ static BOOL logged_message = False;
+ if(!logged_message) {
+ DEBUG(0,("call_nt_transact_set_security_desc: Currently not implemented.\n"));
+ logged_message = True; /* Only print this once... */
+ }
+ return(ERROR(ERRSRV,ERRnosupport));
+}
+
/****************************************************************************
- reply to a SMBNTtrans
+ 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;
-int reply_nttrans(char *inbuf,char *outbuf,int length,int bufsize)
+ 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;
- int cnum = SVAL(inbuf,smb_tid);
+ 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 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 = SVAL(inbuf,smb_nt_SetupCount);
+ 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;
* Queue this open message as we are the process of an oplock break.
*/
- DEBUG(2,("%s: reply_nttrans: queueing message NT_TRANSACT_CREATE \
-due to being in oplock break state.\n", timestring() ));
+ DEBUG(2,("reply_nttrans: queueing message NT_TRANSACT_CREATE \
+due to being in oplock break state.\n" ));
- push_smb_message( inbuf, length);
+ push_oplock_pending_smb_message( inbuf, length);
return -1;
}
outsize = set_message(outbuf,0,0,True);
/*
- * All nttrans messages we handle have smb_wcnt == 19 + setup_count.
+ * All nttrans messages we handle have smb_wct == 19 + setup_count.
* Ensure this is so as a sanity check.
*/
- if(CVAL(inbuf, smb_wcnt) != 19 + setup_count) {
- DEBUG(2,("Invalid smb_wcnt in trans2 call\n"));
+ 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)));
return(ERROR(ERRSRV,ERRerror));
}
if (parameter_count > total_parameter_count || data_count > total_data_count)
exit_server("reply_nttrans: invalid sizes in packet.\n");
- if(setup)
+ if(setup) {
memcpy( setup, &inbuf[smb_nt_SetupStart], setup_count);
- if(params)
+ 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);
- if(data)
+ 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
while( num_data_sofar < total_data_count || num_params_sofar < total_parameter_count) {
BOOL ret;
- ret = receive_next_smb(Client,oplock_sock,inbuf,bufsize,
- SMB_SECONDARY_WAIT);
+ 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(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)
}
/* Revise total_params and total_data in case they have changed downwards */
- total_parameter_count = SIVAL(inbuf, smb_nts_TotalParameterCount);
- total_data_count = SIVAL(inbuf, smb_nts_TotalDataCount);
- num_params_sofar += (parameter_count = SIVAL(inbuf,smb_nts_ParameterCount));
- num_data_sofar += ( data_count = SIVAL(inbuf, smb_nts_DataCount));
+ 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[ SIVAL(inbuf, smb_nts_ParameterDisplacement)],
- smb_base(inbuf) + SVAL(inbuf, smb_nts_ParameterOffset), parameter_count);
- memcpy( &data[SVAL(inbuf, smb_nts_DataDisplacement)],
- smb_base(inbuf)+ SVAL(inbuf, smb_nts_DataOffset), data_count);
+ 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);
}
}
/* Now we must call the relevant NT_TRANS function */
switch(function_code) {
case NT_TRANSACT_CREATE:
- outsize = call_nt_transact_create(inbuf, outbuf, bufsize, cnum,
+ outsize = call_nt_transact_create(conn, inbuf, outbuf, length, bufsize,
&setup, ¶ms, &data);
break;
case NT_TRANSACT_IOCTL:
- outsize = call_nt_transact_ioctl(inbuf, outbuf, bufsize, cnum,
+ outsize = call_nt_transact_ioctl(conn,
+ inbuf, outbuf, length, bufsize,
&setup, ¶ms, &data);
break;
case NT_TRANSACT_SET_SECURITY_DESC:
- outsize = call_nt_transact_set_security_desc(inbuf, outbuf, length, bufsize, cnum,
+ outsize = call_nt_transact_set_security_desc(conn, inbuf, outbuf,
+ length, bufsize,
&setup, ¶ms, &data);
break;
case NT_TRANSACT_NOTIFY_CHANGE:
- outsize = call_nt_transact_notify_change(inbuf, outbuf, length, bufsize, cnum,
+ outsize = call_nt_transact_notify_change(conn, inbuf, outbuf,
+ length, bufsize,
&setup, ¶ms, &data);
break;
case NT_TRANSACT_RENAME:
- outsize = call_nt_transact_rename(inbuf, outbuf, length, bufsize, cnum,
+ outsize = call_nt_transact_rename(conn, inbuf, outbuf, length,
+ bufsize,
&setup, ¶ms, &data);
break;
+
case NT_TRANSACT_QUERY_SECURITY_DESC:
- outsize = call_nt_transact_query_security_desc(inbuf, outbuf, length, bufsize, cnum,
- &setup, ¶ms, &data, total_data);
+ outsize = call_nt_transact_query_security_desc(conn, inbuf, outbuf,
+ length, bufsize,
+ &setup, ¶ms, &data);
break;
- default:
- /* Error in request */
- DEBUG(0,("reply_nttrans: %s Unknown request %d in nttrans call\n",timestring(),
- tran_call));
- if(setup)
- free(setup);
- if(params)
- free(params);
- if(data)
- free(data);
- return (ERROR(ERRSRV,ERRerror));
+ 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);
+ return (ERROR(ERRSRV,ERRerror));
}
/* As we do not know how many data packets will need to be
git.samba.org / samba.git / blobdiff