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amiga-smbfs/documentation/history.doc
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obarthel 047be4f827 Updated to version 1.124
Please keep in mind that this is still a development version and might surprise you (not necessarily in a good way).

Do not let me discourage you to build and test this version, although there will be some risks involved such as data corruption or loss of data.
2018-05-06 16:50:02 +02:00

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smbfs 1.19 (27.11.2000)
- Fixed ACTION_FINDOUTPUT implementation; the memory to hold the
name of the file to be created was released before the file
was created. This could cause garbage to be written to the
output file.
- Fixed ACTION_COPY_DIR implementation; the name of the lock to
be duplicated did not get duplicated.
- Fixed ACTION_EXAMINE_OBJECT and ACTION_EXAMINE_NEXT
implementations; protection bits are now reported 'properly'
with respect to read/write access.
smbfs 1.20 (27.11.2000)
- ACTION_EXAMINE_NEXT now filters out SMB names that include
'/' or ':' characters.
smbfs 1.21 (28.11.2000)
- Modified ACTION_RENAME_DISK to remove the volume node before
changing it. It also sends the appropriate diskremove/diskinserted
input events now.
- Reorganized and rewrote the code to reduce dependencies on
the compiler runtime library.
- Unified error reporting code.
- SMBFS can now be launched from Workbench using the same parameters
you would use when starting it from Shell. Error reporting
has been adapted to show an error requester and to pool error
messages rather than printing them to the console.
smbfs 1.22 (30.11.2000)
- Fixed the test that looks for file/lock access mode collisions.
- No longer changes the case of the password; there is now an
option to make the change.
- Fixed ACTION_SAME_LOCK which was comparing the same lock with
itself.
- Added support for ACTION_EXAMINE_ALL, ACTION_EXAMINE_ALL_END
and ACTION_WRITE_PROTECT packet types.
- No longer allows for files and locks to refer to "." and "..".
The use of the backslash character '\' is also disallowed in
Amiga file/directory names.
smbfs 1.23 (30.11.2000)
- In the ExNext()/ExAll() handling functions local error variables
were shadowing each other. Fixed.
- The error reporting requester now also lists the name of the
service to connect to. This should help in telling different
invocations of the program apart.
- The size of the directory cache is now a configurable option.
- Added a new option which forces all name comparisons to be
done in a case-sensitive fashion.
- Reading/writing data to/from a file in chunks larger than
65535 bytes could fail and cause the file system to hang.
smbfs 1.24 (1.12.2000)
- Added an option to allow hidden files to be omitted from
directory listings.
- Improved upon the error reporting in the code that directly
calls the TCP/IP API functions.
- Reorganized the AmigaDOS packet handling switch..case
list.
- Added support for ACTION_MORE_CACHE packet type. The
cache in this context refers to the directory scanning
cache.
- Improved upon the host lookup error reporting code.
- Added support for file name translation such as via the
CrossDOS translation table files.
smbfs 1.25 (2.12.2000)
- SMBFS now displays some configuration information as soon as
it has successfully connected to the file server and is ready
for action. This output can be suppressed with the new
"QUIET" command line parameter.
- When removing a directory, the error code returned is examined
more closely to see whether the directory was not yet empty.
- When setting the protection bits of a file or directory, the
file system now treats either 'protected from deletion' and
'protected from writing' as indications to mark a file as
write protected. Previously, a file had to be both protected
from deletion and from writing to be treated as write protected.
- Cleaned up the program's data structures and eliminated all
static data that would hold state information. The entire
client side is now completely reentrant.
smbfs 1.26 (3.12.2000)
- File and directory names are no longer duplicated in the
SMB abstraction layer. The strings supplied by the Amiga
file system layer are referenced instead.
- Changed the way the ACTION_MORE_CACHE implementation returns
its result code to be compatible with current practices.
smbfs 1.27 (4.12.2000)
- The changes I made to the file read command in order to allow it
to read more than 65535 bytes at a time did not allow read
attempts at the end of the file to come out properly. Fixed.
- Integrated password encryption code lifted from Samba. Hope
it works as it should, because if it doesn't, I wouldn't know
how to fix it...
smbfs 1.28 (4.12.2000)
- Oh dear, more fixes to the password encryption code and the
connection setup to follow it. This time I managed to test the
code briefly with Samba and password encryption enabled.
Amazingly, it seems to work this time!
smbfs 1.29 (6.12.2000)
- Writes larger than 65535 bytes could stall and slow down the
file system. Fixed. [Thore Böckelmann]
- The ACTION_MORE_CACHE implementation never returned the total
number of cache entries allocated. Fixed. [Thore Böckelmann]
- Plain text passwords didn't seem to work any more after I made
the changes to allow for encrypted passwords to be used. Fixed.
smbfs 1.30 (6.12.2000)
- Changed the structure of the share names by which the file system
refers to the data on the server; they all start with a backslash
now. This seems to help NT and doesn't break the rest.
- For file shares exported using 'share level security', no passwords
will be transmitted.
smbfs 1.31 (7.12.2000)
- The ACTION_EXAMINE and ACTION_EXAMINE_FH implementations now verify
that the name to return will fit into the FileInfoBlock's limited
buffer space.
- Deleting files and directories from a directory currently being
scanned via ACTION_EXAMINE_NEXT or ACTION_EXAMINE_ALL will now cause
the directory scanner to restart. This is ugly, I know, but at least
it won't cause the scanning process to hickup or lose entries
directory entries during its course of duty. The flip side is that
the scanner will probably return some entries twice. There must
be a better way to implement this, but for now, this is it.
- Tried to make device and volume node removal safer.
- SMBFS now always adds a device node to go along with the volume node.
It's safer that way because for every file system you either have a
single device node in the system (and no volume node) or a volume
node *and* a device node. If the device node is missing, there's
typically something wrong and some application software cannot handle
this case properly. SMBFS will attempt to add a new, unique device
node every time it is launched.
- When specifying the name of the file system device to add, SMBFS
now complains if that name already exists.
smbfs 1.32 (8.12.2000)
- File and directory modification dates were always off by six hours and
one second. I don't know how that happens, it doesn't seem to be a bug
in the date conversion routines. I worked around the problem by adding
and subtracting an adjustment value.
smbfs 1.33 (10.12.2000)
- The ACTION_PARENT_DIR implementation did not return a ZERO lock for
the root directory. Fixed. [Rudolph Riedel]
- Replaced the doubly-linked Exec lists with skip lists which
are better suited for the repeated lookup operations that
are so common in the file system. This time the list code
seems to work properly.
- Added -- largely untested -- time and date decoding routines for
directory entries returned by NT.
smbfs 1.34 (10.12.2000)
- Had to take out the skip list code again since it did not seem to
work reliably.
- Further tweaking to the NT date and time decoding code.
smbfs 1.35 (10.12.2000)
- Small modification to the ACTION_EXAMINE_NEXT/ACTION_EXAMINE_ALL code
which tries to work around a strange effect caused by Amiga Samba
returning the contents of an empty drawer.
smbfs 1.36 (11.12.2000)
- More fixes to the NT date and time conversion code and the
strange six hour fixup that seems to be necessary for the
'regular' time conversion to work.
smbfs 1.37 (11.12.2000)
- Replaced the entire 'regular' date and time conversion code. The
strange six hour fixup is no longer necessary.
smbfs 1.38 (11.12.2000)
- Ditched the packet size kludges in "sock.c" and "proc.c" I had put
in there. It seems that only the 'smba_write()'/'smba_read()' code
could trigger it, and that code was fixed quite a while ago.
- Migrated some code changes from the Samba source over to the
directory scanner.
- Maximum transmission size per packet is now the same as the
number the server allowed us to use rather than a fixed number
imposed by VM page sizes.
- Tried to clean up more of the code.
- Discovered that the 'smb_valid_packet()' routine never could have
worked and fixed it so that it now finally does what it should do.
- Better error propagation for some routines in "proc.c".
- More streamlined error testing code.
smbfs 1.39 (11.12.2000)
- Almost fixed several bugs in 'smb_proc_readdir_long()'.
- 'smb_proc_readdir_long()' does not work correctly. It only seems to
work, but will fail if the scanner is to restart before the entire
directory is read. Restored the old behaviour :(
smbfs 1.40 (13.12.2000)
- Took out some more unused and unnecessary code.
- Rewrote the time and date conversion routines.
- Modified the directory reading code so that it no longer relies
upon the last directory entry index which doesn't seem to be
correct most of the time.
- Directory scanning errors are now flagged as such.
smbfs 1.41 (16.12.2000)
- In the SMB abstraction layer, the directory cache is now invalidated
only if the respective action that could have invalidated it succeeds.
- Now clears the directory cache only if the respective action would
have affected the directory being cached.
- In debug mode [Ctrl]+F will display a list of open files and allocated
locks.
- Added very silly support for ACTION_SET_COMMENT packet.
- Found an interesting bug fix for 'smb_proc_readdir_long()' in the
Linux 2.4.0 kernel which seemed worth integrating into the file system.
smbfs 1.42 (19.12.2000)
- Integrated Chris Hertel's broadcast name query code. This means that
the name of the host whose file shares you want to access need no
longer be in the hosts database. However, you still cannot refer to
a host solely by its IP address.
smbfs 1.43 (21.12.2000)
- The integrated broadcase name query code would conflict with the
DNS lookup. Fixed. [Thore Böckelmann]
- The NetBIOS name query code now retries four times to get a response
out of the network.
- Put the mysterious 6 hour time offset fix back in.
smbfs 1.44 (29.12.2000)
- Rewrote the host lookup error reporting code to use the appropriate
API function.
- Discovered that all the functionality required by SMBFS was supported
by the original free AmiTCP 3.0 release. Changed the "bsdsocket.library"
open parameters.
- The ACTION_EXAMINE_OBJECT implementation consistently got the name of
the root directory wrong. Fixed.
smbfs 1.45 (7.1.2001)
- Discovered why file and directory creation dates were wrong by about
six hours. Fixed.
- The order of the parameters passed to the 'ExAll()' filter hook was
wrong. Fixed [Thorsteinn Sveinsson and Matt Sealey].
smbfs 1.46 (1.2.2001)
- Removed the workarounds for the mysterious 'off by six hours' bug.
The time delta value added was consistently wrong.
smbfs 1.47 (18.2.2001)
- The name of the domain/workgroup, the name of the user and the
password to be used can now be preset using environment variables.
- Changed the command line argument template to work better with the
newly introduced environment variable settings.
smbfs 1.48 (3.3.2001)
- Modified the command template so that the final parameter can no
longer cause all other parameters to be swallowed. Also updated
the documentation.
smbfs 1.49 (3.3.2001)
- Handling of ACTION_FINDUPDATE needed improving. It should have
created a file that didn't already exist. It now does [David Gerber].
smbfs 1.50 (4.3.2001)
- ACTION_FINDUPDATE is now associated with a shared lock. It used
to be an exclusive lock [David Gerber].
- The test to follow ACTION_FINDUPDATE that determines whether the
file to open already exists now also tries to 'stat()' the file
in question to find out whether it exists.
smbfs 1.51 (13.3.2001)
- Whoops. The new code to pull data from environment variables didn't
actually check whether the work group name could be set up properly
and thus didn't complain about it either. It now notifies you if
no work group name was provided and none could be found.
smbfs 1.52 (22.6.2001)
- Added another option which allows you to preset the time zone offset
to use when translating between the local time and the SMB server
time. Using the default locale doesn't work for that purpose all the
time since there are so many misconfigured servers out there.
- The ACTION_DIE packet didn't have the desired effect if the file
system didn't have a reason to wait for any resources to be
released again. It just wouldn't quit. Now it does.
- Before it exits, the file system no longer posts a disk change
event if it was launched from Workbench. I found that the steps
taken so far could end up deadlocking Workbench.
smbfs 1.53 (26.6.2001)
- Changed the file name parser; it should now be possible to tie assigns
to files and directories on an smb volume. Since the updated file name
translation code also is a bit smarter about when to use which
file name separator character, accesses to the media should be a
bit faster, too.
- When translating path names, trailing '/' characters are now properly
parsed, i.e. Lock("/",...) should always bring up the parent directory
[Matt Sealey].
- Duplicating a ZERO lock now works as expected.
smbfs 1.54 (27.6.2001)
- Directory and file creation didn't work that properly after applying
the changes I made to the parser. Fixed [Matt Sealey].
smbfs 1.55 (3.3.2002)
- At least samba 2.2.2-12 on linux can send total_data of 0 bytes. This
caused sock.c/smb_receive_trans2() malloc() (==AllocVecPooled) to fail
on smba_readdir(). Fixed [Harry Sintonen].
- Added quickfix against crash if smb_abstraction.c/smb_smba_readdir()
fails. This is by no means a real fix, but at least it doesn't crash
[Harry Sintonen].
- There is definitely something fishy in the smbfs restart/retry scheme,
it just doesn't work properly (all state data has to be, and is,
reset when restarts occur, but still it tries to use the old data as if
nothing happened). Someone should really take a closer look at this
[Harry Sintonen].
smbfs 1.56 (3.9.2002)
- Rewrote the Setup() code which allocates and initializes the device and
volume nodes. Lost all Forbid()..Permit() pairs on the way, making the
code more robust and less weird.
- In proc.c/smb_proc_readdir_long() now specifically watches for the
smb_trans2_request() function return empty data and parameter values.
This is now treated as an attempt to read from an empty directory.
Previously, there was a slight change that the information was
taken seriously even if NULL was returned.
smbfs 1.57 (3.9.2002)
- Ran the code through GCC and rewrote the code to get rid of the compiler
warnings that appeared to have something more serious about them. This
includes, for example, comparisons between signed and unsigned values.
smbfs 1.58 (5.9.2002)
- Rebuilt using my own TCP/IP stack SDK. Rebuilding the code with the
Miami SDK should still be possible, though.
- Changed the way smb_proc_readdir_long() aborts the job if no valid
data is read.
smbfs 1.59 (10.9.2003) [Harry Sintonen <sintonen -at- iki -dot- fi>]
- Fixed ACTION_DELETE_OBJECT to restart directory scanning, it
searched for wrong object. Fixes the problem where every other
file was skipped when deleting directory.
smbfs 1.60 (11.2.2004) [Peter Riede <Noster-Riede -at- T-Online -dot- de>]
- Fixed ACTION_SEEK, it doesn't works if followed by ACTION_WRITE.
Fixes the problem by using the SMBlseek packet instead of just
remembering the position in the local FileNode structure
- Fixed ACTION_SETFILESIZE, has returned an errorcode of 37 instead
of 0L on success.
- Added support for the ACTION_LOCK_RECORD and ACTION_UNLOCK_RECORD
packets.
smbfs 1.61 (27.4.2004)
- Reworked the ACTION_SEEK implementation. Turns out that the SMB
lseek packet only seems to work for the Samba server but produces
unpredictable results with Microsoft flavoured servers. The new
code, which helps to avoid trouble with overlapping write access
and seeks, now performs much like the old one except that it
"notifies" the SMB server of the new file position to be used.
Tested both with Samba and Windows XP: works as it should.
smbfs 1.62 (8.5.2004)
- Added sanity checks to the record locking code. For example,
locking a record of length 0 must be considered illegal. Also,
since the protocol deals with 32 bit signed integers for
file position and record length, parameters that are "too large"
and come out as negative values are now rejected.
smbfs 1.63 (9.5.2004)
- Added more sanity checks to the record locking code, this time
to avoid integer overflows.
- Added support for the SMB 'archive' and 'system' file attributes,
which are mapped to the Amiga 'archived' and 'pure' protection
bits.
- Cleaned up the header files.
smbfs 1.64 (13.5.2004)
- ExamineFH() did not fill in the file protection bits. Fixed.
- Ported to AmigaOS4.
smbfs 1.65 (16.5.2004)
- The port numbers of the NetBIOS session and name services are no
longer hard-coded. They are now looked up (netbios-ns/udp and
netbios-ssn/tcp), and if that fails, the hard-coded default port
numbers are used instead.
- Tried to reduce the risk of triggering buffer overflows by replacing
calls to strcpy/strcat. This revealed weaknesses in a number of
places, including the code that fills in the names of the directory
entries.
- Instead of calling memcpy(), the code now invokes exec.library/CopyMem(),
which should be a wee bit faster than what the 'C' runtime library can do.
- Merged with Peter Riede's changes: for small packets to be sent,
SMBwrite is used instead of SMBwritebraw (which greatly enhances
performance), the server max_xmit field is initialized differently
if the session was opened with a SMBtconx packet and ACTION_SEEK
no longer sets the error code to an undefined value in case of
success.
smbfs 1.66 (10.6.2004)
- Added a paranoia check to the ExAll() implementation which should
avoid trouble with extremely short data buffers.
smbfs 1.67 (27.5.2005)
- Replaced the long NT date conversion code with something hopefully
much more robust. The results so far are both encouraging and
irritating. Dates that previously came out as "unknown" are now
processed, but there are differences between the dates shown in the
directory listing and by listing the files by name. Go figure...
- Transplanted some more code from Samba to handle directory entry
data conversion.
smbfs 1.68 (3.6.2005)
- It appears that Windows XP can produce directory listings with
file/directory modification times set to 0, indicating that no
such information is available, while the associated last file
write access data is present. Previously, smbfs only reported
the modification. If this data is unavailable and the date of
the last write access is, the last write access will be
reported instead.
smbfs 1.69 (13.6.2005)
- The time stamps used in "proc.c", as returned and submitted to
the SMB file system on the other end of the wire are apparently
all in Universally Coordinated Time already (or at least, this
seems to be the case with Samba and Windows XP). Hence no conversion
between local time and UTC is necessary, which would otherwise
distort all date stamps converted. I modified the file system to
leave all time stamps essentially unadjusted for local time in
"proc.c". The local time zone adjustments are now performed only
where the time in question is known to be Amiga-specific, such as
the current system time or the date stamp to set for a file.
The time conversion appears to be working correctly now, but it
does ignore the effects of daylight savings time, which you might
want to adjust for manually through the TIMEZONEOFFSET option
(careful though: this overrides your current locale-defined time
zone settings as far as smbfs is concerned).
Unsolved problem: at least Windows XP seems to return different
time stamps for directory listings and for indidivual files. As
far as I can tell, the sets of time stamps returned for either
doesn't match anywhere.
smbfs 1.70 (13.6.2005)
- Introduced a new option to account for daylight savings time
when appropriate.
- Looks like some of the time stamps used in "proc.c" are
transmitted in local time after all; brought back the
conversion functions.
smbfs 1.71 (13.6.2005)
- The extended directory scanning entry conversion code now swaps
the last modification and last write access date stamps. This
matches the time of the last modification, as returned by the
regular ACTION_EXAMINE_FH/ACTION_EXAMINE packets. Note that the
time resolution is a little bit coarser because the modification
time as expressed by the SMB getattr function cannot represent
60 distinct seconds per minute but only 30. The net effect is
that the resulting time stamps in a directory listing and by
examining a file can differ by one second.
- The DST option's time offset was added to rather than subtracted
from the local time. Fixed.
smbfs 1.72 (14.4.2009)
- In proc.c, smb_setup_header() initialized the SMB header length
field with a number which was too large by four bytes. Consequently,
what was later committed to the wire would have four trailing data
bytes which could contain random values. This often didn't do much
harm, but it seems that Samba 3.2.4 and Windows Vista don't like the
looks of the trailing junk bytes.
smbfs 1.73 (17.4.2009)
- Modified smb_valid_packet() in proc.c to check whether the packet
received is smaller than expected, not whether the length matches
exactly. This seems to fix the protocol negotiation with Samba 3.2.5
for now. Haven't checked Vista yet, though...
smbfs 1.74 (31.8.2009)
- Integrated Harry Sintonen's fix for the problem caused by large
writes to files. The respective packet size was off by one byte.
Thank you very much!
smbfs 1.75 (1.6.2011)
- The ACTION_INFO packet is now handled correctly if a ZERO lock
is provided. Previously, it would return failure, prompting DOS
to show its "please insert disk" requester.
smbfs 1.76 (10.12.2012)
- Added SMB over TCP support (port 445). smbfs now ignores the NetBIOS
transport and uses the raw SMB transport. This seems to work both
better with Windows 7 (and presumably Vista; it does work with Mac OS X
Snow Leopard and beyond), and still works with Windows XP. Currently,
this is enabled by default and still needs a command line switch to
disable it.
smbfs 1.77 (21.2.2016)
- Added command line switch/tool type "NETBIOS" which disables the
raw SMB transport mode, which is now the default.
smbfs 1.78 (21.2.2016)
- SMB packet decoding (and printing the results) can now be enabled
with a command line option. The decoding functions, however, must
be built into the program at compile time through the DUMP_SMB
preprocessor definition.
smbfs 1.79 (21.2.2016)
- SMB packet decoding now includes the contents of the two
packet buffers in the output, as well as the origin of the
packet (which is relevant because the data has different
meanings even if it shares the same command code).
smbfs 1.80 (28.2.2016)
This is the first release which incorporates changes from the MorphOS
smbfs version 50.3, which was kindly provided by Frank Mariak. The individual
changes came from Harry Sintonen, David Gerber and Frank Mariak. Thank
you very much!
- When converting the server's modification time for a FileInfoBlock->fib_Date
we now prefer the creation time record if the modification time is not
provided.
- When the file system enters its packet dispach loop, its Task priority
is increased to 10 unless it already uses a higher priority level;
the priority is restored when the dispatch loop terminates.
- The ACTION_READ_LINK packet is now properly rejected as being
unsupported.
- The default maximum transmission buffer size has been increased by 4 bytes.
- Added another error message ("ERRnosuchshare").
smbfs 1.81 (6.3.2016)
- There used to be four different "max_xmit" variables which shared either
the same name or were slightly different (e.g. "maxxmt"). It was hard
to tell which was which, and which type (some were 'int', some were
'word'). Turns out there were just two types which were relevant for
the operation of the file system.
- The maximum transmission buffer size is now a parameter which can be
preset through command line options or icon tool types. The file
system now respects this upper limit and never sends packets
larger than this number.
- Size of the packet buffer as allocated is now printed along with the
SMB dump output.
- Reworked several word/dword decoding and encoding macros and functions
which lacked proper casting from byte quantities to word/dword
quantities.
smbfs 1.82 (6.3.2016)
- More rework in the word/dword decoding code and type casting.
- In smb_proc_reconnect() the server session key is now a
local variable which is initialized as needed.
smbfs 1.83 (20.3.2016)
- Reworked the SMB decoding so that the ANDX commands can be
handled properly. Not that I have actually seen any of these
commands at work, mind you.
smbfs 1.84 (25.3.2016)
- Major rework of the code which decodes individual commands,
their parameters and the responses. This is still incomplete,
but it's a lot more useful now than before.
smbfs 1.85 (27.3.2016)
- Moved the SMB decoding code out of "sock.c" and into a
separate set of files.
- The SMB decoding code should be functionally complete now,
covering all the commands which smbfs uses.
smbfs 1.86 (27.3.2016)
- Figured why Action_Read->smba_read() could end up returning
random junk in the first few bytes of the file being read and
fixed it. All the work on the SMB message decoder has finally
paid off :-)
smbfs 1.87 (28.3.2016)
- The SMB message decoder now converts date and time formats
for display.
- The SMB message decoder now prints 64 bit numbers in
decimal format, too.
smbfs 1.88 (28.3.2016)
- Added decoding of capabilities described in "Implementing CIFS"
which are not described in "Common Internet File System (CIFS)
Protocol".
- Integers documented as being signed are now treated as such,
with the exception of the creation time field in directory
listings.
smbfs 1.89 (29.3.2016)
- SMB message decoder now also prints NetBIOS session header
information.
- Data transmitted by SMB_COM_WRITE and SMB_COM_WRITE_RAW as well
as data received by SMB_COM_READ and SMB_COM_READ_RAW is now
printed by the SMB message decoder.
smbfs 1.90 (29.3.2016)
- The respective fall-back code for smba_read() and smba_write()
would fail to catch the raw read/write operation failing properly
and end up skipping the non-raw read/write fallback operation
altogether. Whether or not this happened would depend upon the
number of bytes to be read/written, respectively. The net effect
was that newly-created short files would remain entirely empty
with no data written at all. A similar effect happened for
the read operation.
smbfs 1.91 (30.3.2016)
- Turns out that the payload size transmitted in the NetBIOS
session header was too short by 4 bytes due to a misinterpretation
of the code and a subsequent "bug fix".
- SMB_COM_WRITE_RAW server responses may be followed not just
by a single SMB_COM_WRITE_COMPLETE response, but might be
followed by any number of SMB_COM_WRITE_RAW responses. This
is now handled correctly.
- All functions in smb_abstraction.c now report and test for
error return values in a uniform fashion. Mixing up return
values and error codes is no longer so easy.
smbfs 1.92 (31.3.2016)
- Added NetBIOS header debug output.
smbfs 1.93 (31.3.2016)
- The DOS error status and code are now decoded properly.
- If there is no sufficient command data or other data in
the SMB message, the decoder no longer attempts to
decode it.
- Decoding of SMB_COM_SEARCH data had the client/server
information mixed up.
- SMB_COM_READ_RAW now properly updates the offset value,
and also sets the number of bytes read so far correctly
if the initial read operation succeeds. Previously, the
number of bytes read would remain 0.
- SMB_COM_WRITE_RAW now sets the offset value correctly,
which in turn will update the directory cache file
size information correctly, too.
smbfs 1.94 (1.4.2016)
- Added provisional conversion functions for UTF-8
and ISO 8859-1.
smbfs 1.95 (2.4.2016)
- Plugged in the UTF-8 conversion functionality.
smbfs 1.96 (2.4.2016)
- SMB_COM_NEGOTIATE capabilities field is no longer a 16 bit
unsigned integer, but a 32 bit unsigned integer, and it's
called "capabilities" rather than "blkmode".
- The client capabilities sent to the server no longer have
random data in the reserved and capapabilities fields.
- The client now identies as a Unix system if the server has
identified itself as such, too.
- Fixed the 32 bit status field decoding. 32 bit status code
("NT status" codes) could have accidentally been enabled
because the client capability field would contain random
data.
smbfs 1.97 (2.4.2016)
- New oplock level in SMB_COM_LOCKING_ANDX could have been
random.
- Last parameter word of SMB_COM_WRITE_RAW could have been
uninitialized.
smbfs 1.98 (2.4.2016)
- SMB header is set to zero during every setup, and needs
not be reset again.
- SMB_COM_TREE_CONNECT_ANDX no longer sets the error class
before sending a client request.
- Changed mapping of ERRnoaccess (permission denied) from
ERROR_OBJECT_IN_USE to ERROR_OBJECT_NOT_FOUND, which is
closer to its purpose.
smbfs 1.99 (3.4.2016)
- Figured out that smbfs needs a minimum stack size of
20000 bytes to run correctly. Modified the startup
code to provide as much, if possible.
smbfs 1.100 (3.4.2016)
- smb_proc_reconnect() is now much more paranoid when
it comes to verify that the negotiated protocol
makes sense. It actually bails out if the server
hasn't got a clue as to what protocol should be
used instead of doing who knows what.
- If smb_proc_reconnect() negotiates LAN Manager 2.0
protocol or worse, it now sets up the capabilities
field to match what NT LAN Manager would have used.
- smb_proc_reconnect() now reads and uses the maximum
raw read/write size from the server instead of just
assuming that it will be 65535 (appropriate for
LAN Manager 2.0 and older). Also, the challenge
key (crypt key) length is read correctly instead of
assuming that it will always be 8.
smbfs 1.101 (4.4.2016)
- Added documentation for SMB_COM_SESSION_SETUP_AND_X
with regard to the LANMAN 2.0 protocol variant of
the setup message in smb_proc_reconnect(). It really
does contain 10 parameter words.
smbfs 1.102 (9.4.2016)
- Now builds properly for AmigaOS4.
- in proc.c smb_encode_smb_length() now properly fills
in bit #17 of the message length instead of just
checking for the message to be longer than 65535
bytes.
- Added the few missing error messages for error codes
covered by the "Common Internet File System (CIFS) Protocol"
documentation.
- smba_write() now updates the cached file size if it
manages to execute one successful write operation.
smbfs 1.103 (14.4.2016)
- Added DUMPSMBLEVEL option which controls how much raw
data output is produced. By default (level 0) no raw
data output is produced at all. Level 1 will print the
contents of the command data area. Level 2 will print
the raw data used by the respective commands, with any
management/control information stripped off.
smbfs 1.104 (16.4.2016)
- For smb_request_write_raw() return values of 0 now indicate success.
- Simplified the raw read portion of smba_read() by removing the test
that avoids dropping into a read loop below. The loop handles the
special case well.
- Recalculated the overhead for SMB_COM_READ. It's still 52 bytes,
but now the documentation states how this number comes about.
- Recalculated the overhead for SMB_COM_WRITE. It's 52 bytes and
not 56 bytes.
- Recalculated the overhead for the SMB_COM_WRITE_RAW command, and
it's 63 bytes, not 4.
- Unless smb_proc_write_raw() finds that sending the packet results
in a transmission error, it will try to pick up the server responses.
Previously, it would not even try that, which could deadlock the
client<->server message exchange.
smbfs 1.105 (16.4.2016)
- Fixed decoding of maximum buffer size; this used to come out
as 0, which made smbfs switch back to the default minimum
supported (1024 bytes).
- Corrected use of the maximum raw write size as the size used
by the client to perform raw reads with. The maximum allowed
are 65535 bytes for a raw read request. Likewise, the
maximum raw write size is 65535 bytes, too.
smbfs 1.106 (17.4.2016)
- More detailed error class/code translation information now
shows up in the debug log.
- The SMB dump output can now be stored in a file, rather than
having to be redirected to one. When storing it in a file,
the output will be appended to an existing file, otherwise
a new file will be created.
- The raw read/write functions now respect the upper limit
for the amount of data to be written, as given by the server.
smbfs 1.107 (20.4.2016)
- Added WRITEBEHIND and PREFERWRITERAW options. WRITEBEHIND will
allow SMB_COM_WRITE_RAW commands to complete asynchronously.
PREFERWRITERAW will make the file system use SMB_COM_WRITE_RAW
over SMB_COM_WRITE when it has a choice.
smbfs 1.108 (23.4.2016)
- Now properly handles the error code returned when Samba
is asked to remove a non-empty directory. The error is
translated to ENOTEMPTY.
smbfs 1.109 (23.4.2016)
- Activated the PREFERWRITERAW option which had not been wired
up yet. Oops :-( Turns out that with this option enabled
write operations are indeed slower than the with the
adaptive SMB_COM_WRITE/SMB_COM_WRITE_RAW code, on account that
that SMB_COM_WRITE_RAW transmits the data in two packets, plus
overhead for the server response.
- Recalculated the threshold below which a write operation will
be performed using SMB_COM_WRITE instead of SMB_COM_WRITE_RAW.
- Fixed how the WRITEBEHIND option for the SMB_COM_WRITE_RAW
command is implemented: the client must not wait for the
server to acknowledge the command.
- Investigated the performance difference between SMB_COM_WRITE_RAW
using the "write behind" and "write through" modes. In my tests
the difference came down to about 10% performance gain for
the "write behind" mode.
- Compared the performance of plain SMB_COM_WRITE (Windows 7) and
the adaptive SMB_COM_WRITE/SMB_COM_WRITE_RAW (Samba 3.0.25).
The adaptive SMB_COM_WRITE/SMB_COM_WRITE_RAW is about as fast
as the plain SMB_COM_WRITE, with "Windows 7" running on the
same machine as WinUAE (with AmigaOS 3.9) and Samba running
on a local server connected via GBit Ethernet. This means that
SMB_COM_WRITE is significantly slower with Windows 7.
smbfs 1.110 (1.5.2016)
- Added the DEBUGFILE/K option. Not everybody has Sashimi or
a tool like it running in the background, which makes sharing
file system level debug information difficult.
smbfs 1.111 (11.5.2016)
- You can now identify smbfs by checking the DosList->dol_misc.dol_volume.dol_DiskType
field. It will read back as 0x534D4200, which is equivalent to the signature
"SMB\0". This change was suggested by Chris Handley and Chris Young.
Thank you very much!
smbfs 1.112 (26.9.2016)
- The negotiation in smb_proc_reconnect() picked up the server's
maximum buffer size and then always added 4 bytes on top of it.
From the looks of it, this was intended to account for the
4 byte NetBIOS session header to be prepended to each SMB
command block. In practice it could push the size of a
write operation beyond what the server would accept.
smbfs 1.113 (29.9.2016)
- Removed the SMB_HEADER_LEN constant, since it wasn't actually referring to the
length of the SMB header, but the NetBIOS session header plus the SMB header.
This led to some confusion as to what exactly the packet byte offsets used by
"proc.c" would reference.
- "proc.c" now lists the byte offset values into the packet buffer, so as
to make it clearer what exactly is being referenced.
- smb_valid_packet() now correctly displays the expected and actual
packet size.
- smb_setup_header() no longer includes the NetBIOS session header
in the total message length calculation. Which means that smbfs
no longer sends packets with a NetBIOS header which claims that
the messages should be longer than they actually are.
- smb_proc_write_raw() no longer cares about the number of
command words, but only about the number of data bytes and
the command, when waiting for a raw write operation to
conclude.
smbfs 1.114 (1.10.2016)
- The packet buffer size is now increased during the protocol
negotiation, if the default buffer size proves to be too
small. This avoids trouble with the MAXTRANSMIT option,
which used to leave the original packet buffer size
unchanged, and too short.
- The raw write operation no longer stumbles into a 0 length
write, which the server would not expect and not respond to.
- Moved the test for the "write behind" option in the
raw write operation so that it is handled before the
server response (which hasn't arrived yet) is checked.
- Verified that the raw write operation can deal properly
with the server response (interim update and write
completion).
smbfs 1.115 (2.10.2016)
- The MAXTRANSMIT option controls how much data smbfs is
prepared to receive. That value cannot be smaller than
8000 bytes, and it cannot be larger than 65535. The
code which sets up this parameter and verifies that it
is in range is now implemented only once, and not
twice in different places.
- The MAXTRANSMIT option also controls how much data
smbfs may send to the server. This limit is no longer
capped at 65535 bytes.
- The size of the message reception/transmission buffer
can no longer be smaller than 8000 bytes and it cannot
be smaller than the number of bytes which may be sent
to the server.
smbfs 1.116 (3.10.2016)
- smb_receive_trans2() now verifies that the amount of
data received is not larger than the maximum acceptable
by the client. Previously, it compared the amount of
data received against the server's upper limit. Ouch :-(
- smba_readdir() now stops immediately if no directory
entries are supplied. Previously, it could deliver
a bogus directory entry to the scanning function.
- The number of directory entries accepted by smb_proc_readdir_short()
is now calculated according to how much data the client will
accept, and not according to the server's limit.
- smb_proc_readdir_long() now reports how much data the
client will accept, rather than how much the server will
accept. This was problematic because that number is a
16 bit value, and the server's maximum transmission
value could be larger than 65535 bytes, causing directory
scanning to fail because the truncated 16 bit value
could be too tiny to report even a single result.
smbfs 1.117 (11.4.2018)
- Looks like the SMB_COM_WRITE_RAW implementation is really as simple
as the documentation suggested. Just two packets need to be sent to
to the server.
smbfs 1.118 (29.4.2018)
- Added const qualifier to pointers to immutable data, to identify
further trouble spots.
- Replaced some instances of memcpy() with memmove(). For all others
a debug version of memcpy() is being used which should log an error
if the source/destination should overlap.
- When started as a shell command, error messages now go to
stderr, if possible.
- Action_ExamineObject() could remove the leading '\' path separator
from the internal representation of the object's path name, but
fail to remember that it had truncated the name. This would result
in Examine() returning a file/directory name with a trailing NUL
character.
The file system cannot access an object by that name, which means
that it would report an error for an object which clearly exists.
Fixing this bug might just resolve a number of inexplicable file
access errors.
smbfs 1.119 (1.5.2018)
- Replaced the constant 4 with what it actually stands for,
this being the size of the NetBIOS frame header (NETBIOS_HEADER_SIZE).
- The debug output no longer includes any plain text passwords.
Note that weakly-encrypted password data may still show up,
though.
- The size of the packet buffer used for transmission and
reception of NetBIOS frames is now stored properly and does
not include the extra 512 byte safety margin added to the
end.
- How much data the SMB_COM_READ/SMB_COM_WRITE and SMB_COM_WRITE_RAW
may receive and transmit is now decoded much more accurately, with
the respective limitations (local transmit buffer size, server's
reported size limits) taken into account.
- Renamed the various "maximum whatever size" variables used by the
SMB_COM_READ/SMB_COM_READ_RAW and SMB_COM_WRITE/SMB_COM_WRITE_RAW
commands to make it slightly clearer which respective command the
limitations apply to.
smbfs 1.120 (1.5.2018)
- Both SMB_COM_WRITE and SMB_COM_WRITE_RAW commands would copy the
data to be transmitted into the transmit buffer and then send
the transmit buffer contents.
It is not actually necessary to make this redundant copy because
the contents of the NetBIOS frame header and the SMB commands do
not depend upon knowledge of what's in the data to be sent. So
we just send the header with send() and the data with another
send() call. This might improve write performance somewhat.
Note that the payload of the write operations will no longer
show up as part of the SMB dump, as it is transmitted later.
Similar code exists for SMB_COM_READ, but smbfs will always try
to use SMB_COM_READ_RAW first, which does not return its data
in a separate NetBIOS frame whose contents first have to be
picked apart. No change should be necessary here.
smbfs 1.121 (4.5.2018)
- Replaced sendto() with send(), and recvfrom() with recv() where
possible.
- When reading directory entries with ExNext(), entries with
names longer than 107 characters will now be skipped. It worked
like that for Examine() already, which flagged overly long
names with the error code ERROR_INVALID_COMPONENT_NAME.
- Dropped the stub functions smb_request_ok_unlock() and
smb_setu_header_exclusive() which were remnants of the
original smbfs kernel code but served no practical
purpose.
- Added additional buffer overflow checks.
- When reading and decoding directory entries, the buffer to
hold the individual names is no longer grown by single
bytes, but in steps of 16 characters, if needed.
- Simplified smb_request_write_raw().
- Removed unused local variables and function parameters.
smbfs 1.122 (5.5.2018)
- Rewrote smb_receive_trans2() for better readability, replacing
the multiple pointer dereferentiations. Any error code returned
is now converted from whatever seems most appropriate instead
of passing EIO to the caller, expecting the caller to perform
the conversion (which it doesn't).
- smb_release() now just closes the socket and does not
allocate it again. smb_connect() reallocates the socket
if necessary.
- smb_connect() now shows which server IPv4 address is being used.
- Added more debug output to sock.c, especially for all those
cases which just returned error code EIO without stating what
led to this point.
- proc.c no longer uses type 'word' function parameters and local
variables unless these absolutely have to be unsigned 16 bit
integers. This is what finally (!) made the SMB_COM_WRITE command
work properly with 65535 bytes to be written. Because the final
NetBIOS frame size came out as 65583 bytes (which the NetBIOS
frame handles fine), and the size parameter being a 16 bit integer,
the truncated size (47 bytes) wreaked havoc all over the place.
smbfs 1.123 (6.5.2018)
- smb_proc_readdir_long() could return an error code which would be
mistaken as the number of directory entries available. The error
code should have been negative. Fixed.
- Action_ExamineObject() failed to compare the correct file name
length against the maximum permitted file name length. It retained
the full path name length, which could lead to the operation being
aborted. The same problem also existed in Action_ExamineFH().
- The buffer size check in the UTF-8 conversion code used by
Action_ExamineObject() should have verified that the name in
ISO 8859-1 form fits into the name buffer. Fixed.
- Time stamps used for cache validation are now unsigned integers
rather than signed integers.
smbfs 1.124 (6.5.2018)
- recv() returning 0 is now consistently treated as it should
be: end of stream.
- SMB_COM_READ now receives the inbound data straight into the
file read buffer instead of into the packet buffer, from which
it would then be copied into the file read buffer.