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| author | Steve French <smfrench@gmail.com> | 2019-04-27 05:36:08 +0200 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2019-05-08 06:24:55 +0200 |
| commit | 26ea888f6282b0f5c1977d8ddb2fff1ea0238bd7 (patch) | |
| tree | 5021f89c94babeac98e67aeac765f0590cdf71c8 /fs/cifs/cifsglob.h | |
| parent | cifs: rename and clarify CIFS_ASYNC_OP and CIFS_NO_RESP (diff) | |
| download | linux-26ea888f6282b0f5c1977d8ddb2fff1ea0238bd7.tar.xz linux-26ea888f6282b0f5c1977d8ddb2fff1ea0238bd7.zip | |
Negotiate and save preferred compression algorithms
New negotiate context (3) allows the server and client to
negotiate which compression algorithms to use. Add support
for this and save it off in the server structure.
Also now displayed in /proc/fs/cifs/DebugData (see below example
to Windows 10) where compression algoirthm "LZ77" was negotiated:
Servers:
Number of credits: 326 Dialect 0x311 COMPRESS_LZ77 signed
1) Name: 192.168.92.17 Uses: 1 Capability: 0x300067 Session Status: 1 TCP status: 1 Instance: 1
See MS-XCA and MS-SMB2 2.2.3.1 for more details.
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Diffstat (limited to 'fs/cifs/cifsglob.h')
| -rw-r--r-- | fs/cifs/cifsglob.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index c22ab330238c..561f1395eddd 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -734,6 +734,7 @@ struct TCP_Server_Info { #endif /* STATS2 */ unsigned int max_read; unsigned int max_write; + __le16 compress_algorithm; __le16 cipher_type; /* save initital negprot hash */ __u8 preauth_sha_hash[SMB2_PREAUTH_HASH_SIZE]; |