diff options
| author | Steve French <stfrench@microsoft.com> | 2020-10-15 04:24:09 +0300 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2020-10-16 07:58:15 +0300 |
| commit | 29e279230413cdd5e00fb5d269cae1099184ab85 (patch) | |
| tree | 8556337d076697bdbaba24dc949bdf2f33b3d179 /fs/cifs/cifsfs.c | |
| parent | fbfd0b46afa9a8b50a061b0f28204fc94c7bddcf (diff) | |
| download | linux-29e279230413cdd5e00fb5d269cae1099184ab85.tar.xz | |
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/cifsfs.c')
| -rw-r--r-- | fs/cifs/cifsfs.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index 462dbbd17c5f..472cb7777e3e 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -71,6 +71,7 @@ bool enable_oplocks = true; bool linuxExtEnabled = true; bool lookupCacheEnabled = true; bool disable_legacy_dialects; /* false by default */ +bool enable_gcm_256; /* false by default, change when more servers support it */ bool require_gcm_256; /* false by default */ unsigned int global_secflags = CIFSSEC_DEF; /* unsigned int ntlmv2_support = 0; */ @@ -105,6 +106,9 @@ MODULE_PARM_DESC(slow_rsp_threshold, "Amount of time (in seconds) to wait " module_param(enable_oplocks, bool, 0644); MODULE_PARM_DESC(enable_oplocks, "Enable or disable oplocks. Default: y/Y/1"); +module_param(enable_gcm_256, bool, 0644); +MODULE_PARM_DESC(enable_gcm_256, "Enable requesting strongest (256 bit) GCM encryption. Default: n/N/0"); + module_param(require_gcm_256, bool, 0644); MODULE_PARM_DESC(require_gcm_256, "Require strongest (256 bit) GCM encryption. Default: n/N/0"); |