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common function
Signed-off-by: Henrique Carvalho <henrique.carvalho@suse.com>
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Remove no longer needed files, structs, macros, functions that were
only used by SMB1.
TODO: there are probably leftovers, so remove them as they're found.
Signed-off-by: Enzo Matsumiya <ematsumiya@suse.de>
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This commit removes all code guarded by the macro CONFIG_CIFS_ALLOW_INSECURE_LEGACY
as a first step of the cifs module cleanup.
Signed-off-by: Henrique Carvalho <henrique.carvalho@suse.com>
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When we're engaged in local caching of a cifs filesystem, we cannot perform
caching of a partially written cache granule unless we can read the rest of
the granule. This can result in unexpected access errors being reported to
the user.
Fix this by the following: if a file is opened O_WRONLY locally, but the
mount was given the "-o fsc" flag, try first opening the remote file with
GENERIC_READ|GENERIC_WRITE and if that returns -EACCES, try dropping the
GENERIC_READ and doing the open again. If that last succeeds, invalidate
the cache for that file as for O_DIRECT.
Fixes: 70431bfd825d ("cifs: Support fscache indexing rewrite")
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Shyam Prasad N <nspmangalore@gmail.com>
cc: Rohith Surabattula <rohiths.msft@gmail.com>
cc: Jeff Layton <jlayton@kernel.org>
cc: linux-cifs@vger.kernel.org
cc: netfs@lists.linux.dev
cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Steve French <stfrench@microsoft.com>
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Add trace points to help debug mknod and mkfifo:
smb3_mknod_done
smb3_mknod_enter
smb3_mknod_err
Example output:
TASK-PID CPU# ||||| TIMESTAMP FUNCTION
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mkfifo-6163 [003] ..... 960.425558: smb3_mknod_enter: xid=12 sid=0xb55130f6 tid=0x46e6241c path=\fifo1
mkfifo-6163 [003] ..... 960.432719: smb3_mknod_done: xid=12 sid=0xb55130f6 tid=0x46e6241c
Reviewed-by: Bharath SM <bharathsm@microsoft.com>
Reviewed-by: Meetakshi Setiya <msetiya@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
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Add support for creating special files (e.g. char/block devices,
sockets, fifos) via NFS reparse points on SMB2+, which are fully
supported by most SMB servers and documented in MS-FSCC.
smb2_get_reparse_inode() creates the file with a corresponding reparse
point buffer set in @iov through a single roundtrip to the server.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202311260746.HOJ039BV-lkp@intel.com/
Signed-off-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
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Automount code will handle both DFS links and reparse mount points.
Also, get rid of BUG_ON() in cifs_release_automount_timer() while
we're at it.
Signed-off-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
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Move CIFS/SMB3 related client and server files (cifs.ko and ksmbd.ko
and helper modules) to new fs/smb subdirectory:
fs/cifs --> fs/smb/client
fs/ksmbd --> fs/smb/server
fs/smbfs_common --> fs/smb/common
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
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