diff options
| author |   Steve French <stfrench@microsoft.com> | 2019-06-07 15:16:10 -0500 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2019-07-07 22:37:42 -0500 |
| commit | 2b2f7548076200b69ee377b4bb4f426696502b04 (patch) | |
| tree | 159754d3f327afeacbf9c27f2229aed2c5515b5f /fs/cifs/smb2transport.c | |
| parent | SMB3: Add SMB3.1.1 GCM to negotiated crypto algorigthms (diff) | |
| download | linux-dev-2b2f7548076200b69ee377b4bb4f426696502b04.tar.xz linux-dev-2b2f7548076200b69ee377b4bb4f426696502b04.zip | |
SMB3.1.1: Add GCM crypto to the encrypt and decrypt functions
SMB3.1.1 GCM performs much better than the older CCM default:
more than twice as fast in the write patch (copy to the Samba
server on localhost for example) and 80% faster on the read
patch (copy from the server).
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
Diffstat (limited to '')
| -rw-r--r-- | fs/cifs/smb2transport.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/fs/cifs/smb2transport.c b/fs/cifs/smb2transport.c index d1181572758b..1ccbcf9c2c3b 100644 --- a/fs/cifs/smb2transport.c +++ b/fs/cifs/smb2transport.c @@ -734,7 +734,10 @@ smb3_crypto_aead_allocate(struct TCP_Server_Info *server) struct crypto_aead *tfm; if (!server->secmech.ccmaesencrypt) { - tfm = crypto_alloc_aead("ccm(aes)", 0, 0); + if (server->cipher_type == SMB2_ENCRYPTION_AES128_GCM) + tfm = crypto_alloc_aead("gcm(aes)", 0, 0); + else + tfm = crypto_alloc_aead("ccm(aes)", 0, 0); if (IS_ERR(tfm)) { cifs_dbg(VFS, "%s: Failed to alloc encrypt aead\n", __func__); @@ -744,7 +747,10 @@ smb3_crypto_aead_allocate(struct TCP_Server_Info *server) } if (!server->secmech.ccmaesdecrypt) { - tfm = crypto_alloc_aead("ccm(aes)", 0, 0); + if (server->cipher_type == SMB2_ENCRYPTION_AES128_GCM) + tfm = crypto_alloc_aead("gcm(aes)", 0, 0); + else + tfm = crypto_alloc_aead("ccm(aes)", 0, 0); if (IS_ERR(tfm)) { crypto_free_aead(server->secmech.ccmaesencrypt); server->secmech.ccmaesencrypt = NULL; |