Added a mmap file handler to struct _rtems_filesystem_file_handlers_r.
Updated each file handler object to support the default mmap handler.
Updated mmap() to call the mmap handler for MAP_SHARED.
Added a mmap file handler for shm
Added support for MAP_ANON in mmap().
Updates #2859
Don't use unsafe buffer operations, averting (stack) buffer overflow
when the syslog message length (including Facility and Level encoding)
would exceed 199 characters
1) The value of rtems_bsdnet_ntpserver_count is equal to 0 when no
server is set, so the check for (rtems_bsdnet_ntpserver_count < 0)
in rtems_bsdnet_get_ntp() is wrong. The check should be "<= 0".
2) Binding the listening socket port to 0 does not work. Packets
appear on the interface, but the recvfrom in tryServer() never
returns. Changing this to the well known NTP socket 123 allows
the packets to be seen.
3) In tryServer(), an explicit check for NTP version 3 packets is made.
If the NTP server is version 4, this check fails even though the
packets seem to be the right shape.
The readv() and writev() support was implemented in terms of multiple
calls to the read and write handlers. This imposes a problem on device
files which use an IO vector as single request entity. For example a
low-level network device (e.g. BPF(4)) may use an IO vector to create
one frame from multiple protocol layers each with its own IO vector
entry.
It is invalid to issue a SIZE command once a data transfer is
in progress. For reads we issue the SIZE command before the RETR
command and get a snapshot of the file size. For writes the file size
is initialized to zero and incremented for each write chunk.
The pathconf_limits_and_options field of
rtems_filesystem_mount_table_entry_t is now a const pointer to reduce
the read-write memory demands of file system instances.
The scope of the file system operations is the file system instance.
The scope of the file system node handlers is the file location. The
benefit of moving the operations to the mount table entry is a size
reduction of the file location (rtems_filesystem_location_info_t). The
code size is slightly increased due to additional load instructions.
Restructure rtems_filesystem_mount_table_entry_t to improve cache
efficiency.
Script does what is expected and tries to do it as
smartly as possible.
+ remove occurrences of two blank comment lines
next to each other after Id string line removed.
+ remove entire comment blocks which only exited to
contain CVS Ids
+ If the processing left a blank line at the top of
a file, it was removed.
o Removed RTEMS_LIBIO_PERMS_SEARCH.
o Renamed RTEMS_LIBIO_PERMS_READ in RTEMS_FS_PERMS_READ.
o Renamed RTEMS_LIBIO_PERMS_WRITE in RTEMS_FS_PERMS_WRITE.
o Renamed RTEMS_LIBIO_PERMS_EXEC in RTEMS_FS_PERMS_EXEC.
o Renamed RTEMS_LIBIO_FOLLOW_HARD_LINK in RTEMS_FS_FOLLOW_HARD_LINK.
o Renamed RTEMS_LIBIO_FOLLOW_SYM_LINK in RTEMS_FS_FOLLOW_SYM_LINK.
o Renamed RTEMS_LIBIO_MAKE in RTEMS_FS_MAKE.
o Renamed RTEMS_LIBIO_EXCLUSIVE in RTEMS_FS_EXCLUSIVE.
o Renamed RTEMS_LIBIO_ACCEPT_RESIDUAL_DELIMITERS in
RTEMS_FS_ACCEPT_RESIDUAL_DELIMITERS.
o Renamed RTEMS_LIBIO_REJECT_TERMINAL_DOT in
RTEMS_FS_REJECT_TERMINAL_DOT.
New defaults rtems_filesystem_default_fsync_or_fdatasync() and
rtems_filesystem_default_fsync_or_fdatasync_success() for fsync_h and
fdatasync_h. The rtems_filesystem_default_fsync_or_fdatasync() sets now
errno to EINVAL according to POSIX.
o A new data structure rtems_filesystem_global_location_t was
introduced to be used for
o the mount point location in the mount table entry,
o the file system root location in the mount table entry,
o the root directory location in the user environment, and
o the current directory location in the user environment.
During the path evaluation global start locations are obtained to
ensure that the current file system instance will be not unmounted in
the meantime.
o The user environment uses now reference counting and is protected
from concurrent access.
o The path evaluation process was completely rewritten and simplified.
The IMFS, RFS, NFS, and DOSFS use now a generic path evaluation
method. Recursive calls in the path evaluation have been replaced
with iteration to avoid stack overflows. Only the evaluation of
symbolic links is recursive. No dynamic memory allocations and
intermediate buffers are used in the high level path evaluation. No
global locks are held during the file system instance specific path
evaluation process.
o Recursive symbolic link evaluation is now limited by
RTEMS_FILESYSTEM_SYMLOOP_MAX. Applications can retrieve this value
via sysconf().
o The device file system (devFS) uses now no global variables and
allocation from the workspace. Node names are allocated from the
heap.
o The upper layer lseek() performs now some parameter checks.
o The upper layer ftruncate() performs now some parameter checks.
o unmask() is now restricted to the RWX flags and protected from
concurrent access.
o The fchmod_h and rmnod_h file system node handlers are now a file
system operation.
o The unlink_h operation has been removed. All nodes are now destroyed
with the rmnod_h operation.
o New lock_h, unlock_h, clonenod_h, and are_nodes_equal_h file system
operations.
o The path evaluation and file system operations are now protected by
per file system instance lock and unlock operations.
o Fix and test file descriptor duplicate in fcntl().
o New test fstests/fsnofs01.
* libnetworking/lib/tftpDriver.c: rtems_tftp_ops and
rtems_tftp_handlers are now const and static.
* libnetworking/rtems/tftp.h: Removed
rtems_bsdnet_initialize_tftp_filesystem and rtems_tftp_ops.
* libcsupport/Makefile.am: Add mount-mgr.c.
* libcsupport/src/mount-mgr.c: New.
* include/rtems/fs.h: Added rtems_filesystem_location_mount.
* libcsupport/include/rtems/libio.h, libcsupport/src/mount.c: New
mount interface. It is similar to Linux.
* libcsupport/include/rtems/libio_.h: Remove the
init_fs_mount_table call.
* libcsupport/src/base_fs.c: Remove init_fs_mount_table_call. Use
the new mount call. Remove setting the root node in the global
pathloc. Mount does this now.
* libcsupport/src/privateenv.c: Remove the hack to set the root
mount table entry in the environment.
* libcsupport/src/unmount.cL Free the target string.
* libblock/src/bdpart-mount.c: New mount API.
* libfs/src/devfs/devfs.h, libfs/src/devfs/devfs_init.c,
libfs/src/dosfs/dosfs.h, libfs/src/dosfs/msdos.h,
libfs/src/dosfs/msdos_init.c, libfs/src/imfs/imfs.h,
libfs/src/imfs/imfs_eval.c, libfs/src/imfs/imfs_init.c,
libfs/src/imfs/miniimfs_init.c,
libfs/src/nfsclient/src/librtemsNfs.h,
libfs/src/rfs/rtems-rfs-rtems.c, libfs/src/rfs/rtems-rfs.h,
libnetworking/lib/ftpfs.c, libnetworking/rtems/ftpfs.h,
libnetworking/rtems/tftp.h: New mount_h API.
* libfs/src/devfs/devfs_eval.c: Local include of extern ops.
* libfs/src/nfsclient/src/nfs.c: New mount API. Removed the mount
me call and fixed the initialisation to happen when mounting.
* libmisc/Makefile.am, libmisc/shell/shellconfig.h: Remove mount
filesystem files.
* libmisc/fsmount/fsmount.c, libmisc/fsmount/fsmount.h: Updated to
the new mount table values.
* libmisc/shell/main_mount_ftp.c,
libmisc/shell/main_mount_msdos.c, libmisc/shell/main_mount_rfs.c,
libmisc/shell/main_mount_tftp.c: Removed.
* libmisc/shell/main_mount.c: Use the new mount API. Also access
the file system table for the file system types.
* libnetworking/lib/tftpDriver.c: Updated to the new mount
API. Fixed to allow mounting from any mount point. Also can now
have more than file system mounted.
* sapi/include/confdefs.h: Add file system configuration support.
* libnetworking/lib/ftpfs.c: 16bit target fixes:
Use ioctl_command_t as arg to rtems_ftpfs_do_ioctl.
Explicitly cast to uint32_t in char[] to uint32_t
conversion.
