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author | Ronnie Sahlberg <lsahlber@redhat.com> | 2018-12-18 17:49:05 -0600 |
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committer | Steve French <stfrench@microsoft.com> | 2018-12-19 07:55:32 -0600 |
commit | 271b9c0c80076bb1dd868dc384ef3aac87ec7dec (patch) | |
tree | 020b815b1a0e8fb08e54888d495e82f5a4bfc8ce /fs/cifs/smbencrypt.c | |
parent | Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi (diff) | |
download | linux-dev-271b9c0c80076bb1dd868dc384ef3aac87ec7dec.tar.xz linux-dev-271b9c0c80076bb1dd868dc384ef3aac87ec7dec.zip |
smb3: Fix rmdir compounding regression to strict servers
Some servers require that the setinfo matches the exact size,
and in this case compounding changes introduced by
commit c2e0fe3f5aae ("cifs: make rmdir() use compounding")
caused us to send 8 bytes (padded length) instead of 1 byte
(the size of the structure). See MS-FSCC section 2.4.11.
Fixing this when we send a SET_INFO command for delete file
disposition, then ends up as an iov of a single byte but this
causes problems with SMB3 and encryption.
To avoid this, instead of creating a one byte iov for the disposition value
and then appending an additional iov with a 7 byte padding we now handle
this as a single 8 byte iov containing both the disposition byte as well as
the padding in one single buffer.
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Acked-by: Paulo Alcantara <palcantara@suse.de>
Diffstat (limited to 'fs/cifs/smbencrypt.c')
0 files changed, 0 insertions, 0 deletions