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| author | Aurelien Aptel <aaptel@suse.com> | 2018-02-16 19:19:28 +0100 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2018-04-01 20:24:39 -0500 |
| commit | 5fcd7f3f966f37f3f9a215af4cc1597fe338d0d5 (patch) | |
| tree | 205047056dc838730ff6f1acd73789b99671fa44 /fs/cifs/smb2transport.c | |
| parent | 82fb82be05585426405667dd5f0510aa953ba439 (diff) | |
| download | lwn-5fcd7f3f966f37f3f9a215af4cc1597fe338d0d5.tar.gz lwn-5fcd7f3f966f37f3f9a215af4cc1597fe338d0d5.zip | |
CIFS: add sha512 secmech
* prepare for SMB3.11 pre-auth integrity
* enable sha512 when SMB311 is enabled in Kconfig
* add sha512 as a soft dependency
Signed-off-by: Aurelien Aptel <aaptel@suse.com>
Signed-off-by: Steve French <smfrench@gmail.com>
CC: Stable <stable@vger.kernel.org>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Diffstat (limited to 'fs/cifs/smb2transport.c')
| -rw-r--r-- | fs/cifs/smb2transport.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/fs/cifs/smb2transport.c b/fs/cifs/smb2transport.c index c3c271f557a0..bf49cb73b9e6 100644 --- a/fs/cifs/smb2transport.c +++ b/fs/cifs/smb2transport.c @@ -70,6 +70,36 @@ err: return rc; } +#ifdef CONFIG_CIFS_SMB311 +int +smb311_crypto_shash_allocate(struct TCP_Server_Info *server) +{ + struct cifs_secmech *p = &server->secmech; + int rc = 0; + + rc = cifs_alloc_hash("hmac(sha256)", + &p->hmacsha256, + &p->sdeschmacsha256); + if (rc) + return rc; + + rc = cifs_alloc_hash("cmac(aes)", &p->cmacaes, &p->sdesccmacaes); + if (rc) + goto err; + + rc = cifs_alloc_hash("sha512", &p->sha512, &p->sdescsha512); + if (rc) + goto err; + + return 0; + +err: + cifs_free_hash(&p->cmacaes, &p->sdesccmacaes); + cifs_free_hash(&p->hmacsha256, &p->sdeschmacsha256); + return rc; +} +#endif + static struct cifs_ses * smb2_find_smb_ses_unlocked(struct TCP_Server_Info *server, __u64 ses_id) { |