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authorSteve French <stfrench@microsoft.com>2020-10-14 20:24:09 -0500
committerSteve French <stfrench@microsoft.com>2020-10-15 23:58:15 -0500
commit29e279230413cdd5e00fb5d269cae1099184ab85 (patch)
tree8556337d076697bdbaba24dc949bdf2f33b3d179 /fs/cifs/cifsglob.h
parentfbfd0b46afa9a8b50a061b0f28204fc94c7bddcf (diff)
downloadlinux-29e279230413cdd5e00fb5d269cae1099184ab85.tar.gz
smb3.1.1: add new module load parm enable_gcm_256
Add new module load parameter enable_gcm_256. If set, then add AES-256-GCM (strongest encryption type) to the list of encryption types requested. Put it in the list as the second choice (since AES-128-GCM is faster and much more broadly supported by SMB3 servers). To make this stronger encryption type, GCM-256, required (the first and only choice, you would use module parameter "require_gcm_256." Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com> Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/cifs/cifsglob.h')
-rw-r--r--fs/cifs/cifsglob.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index ec21af833749..a1a1a16acb38 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -1956,6 +1956,7 @@ extern bool lookupCacheEnabled;
extern unsigned int global_secflags; /* if on, session setup sent
with more secure ntlmssp2 challenge/resp */
extern unsigned int sign_CIFS_PDUs; /* enable smb packet signing */
+extern bool enable_gcm_256; /* allow optional negotiate of strongest signing (aes-gcm-256) */
extern bool require_gcm_256; /* require use of strongest signing (aes-gcm-256) */
extern bool linuxExtEnabled;/*enable Linux/Unix CIFS extensions*/
extern unsigned int CIFSMaxBufSize; /* max size not including hdr */