diff options
| -rw-r--r-- | fs/cifs/Kconfig | 1 | ||||
| -rw-r--r-- | fs/cifs/cifsencrypt.c | 7 | ||||
| -rw-r--r-- | fs/cifs/cifsfs.c | 1 | ||||
| -rw-r--r-- | fs/cifs/cifsglob.h | 2 | ||||
| -rw-r--r-- | fs/cifs/smb2proto.h | 3 | ||||
| -rw-r--r-- | fs/cifs/smb2transport.c | 30 |
6 files changed, 44 insertions, 0 deletions
diff --git a/fs/cifs/Kconfig b/fs/cifs/Kconfig index 687da62daf4e..e901ef6a4813 100644 --- a/fs/cifs/Kconfig +++ b/fs/cifs/Kconfig @@ -189,6 +189,7 @@ config CIFS_NFSD_EXPORT config CIFS_SMB311 bool "SMB3.1.1 network file system support (Experimental)" depends on CIFS + select CRYPTO_SHA512 help This enables experimental support for the newest, SMB3.1.1, dialect. diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c index 478a145aa4d0..6fa6d459678e 100644 --- a/fs/cifs/cifsencrypt.c +++ b/fs/cifs/cifsencrypt.c @@ -829,6 +829,11 @@ cifs_crypto_secmech_release(struct TCP_Server_Info *server) server->secmech.md5 = NULL; } + if (server->secmech.md5) { + crypto_free_shash(server->secmech.sha512); + server->secmech.sha512 = NULL; + } + if (server->secmech.hmacmd5) { crypto_free_shash(server->secmech.hmacmd5); server->secmech.hmacmd5 = NULL; @@ -852,4 +857,6 @@ cifs_crypto_secmech_release(struct TCP_Server_Info *server) server->secmech.sdeschmacmd5 = NULL; kfree(server->secmech.sdescmd5); server->secmech.sdescmd5 = NULL; + kfree(server->secmech.sdescsha512); + server->secmech.sdescsha512 = NULL; } diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index 32cdea67bbfd..f715609b13f3 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -1486,6 +1486,7 @@ MODULE_SOFTDEP("pre: nls"); MODULE_SOFTDEP("pre: aes"); MODULE_SOFTDEP("pre: cmac"); MODULE_SOFTDEP("pre: sha256"); +MODULE_SOFTDEP("pre: sha512"); MODULE_SOFTDEP("pre: aead2"); MODULE_SOFTDEP("pre: ccm"); module_init(init_cifs) diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index 48f7c197cd2d..765fc2c9fd91 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -130,10 +130,12 @@ struct cifs_secmech { struct crypto_shash *md5; /* md5 hash function */ struct crypto_shash *hmacsha256; /* hmac-sha256 hash function */ struct crypto_shash *cmacaes; /* block-cipher based MAC function */ + struct crypto_shash *sha512; /* sha512 hash function */ struct sdesc *sdeschmacmd5; /* ctxt to generate ntlmv2 hash, CR1 */ struct sdesc *sdescmd5; /* ctxt to generate cifs/smb signature */ struct sdesc *sdeschmacsha256; /* ctxt to generate smb2 signature */ struct sdesc *sdesccmacaes; /* ctxt to generate smb3 signature */ + struct sdesc *sdescsha512; /* ctxt to generate smb3.11 signing key */ struct crypto_aead *ccmaesencrypt; /* smb3 encryption aead */ struct crypto_aead *ccmaesdecrypt; /* smb3 decryption aead */ }; diff --git a/fs/cifs/smb2proto.h b/fs/cifs/smb2proto.h index 05287b01f596..3b8e9c2e55bc 100644 --- a/fs/cifs/smb2proto.h +++ b/fs/cifs/smb2proto.h @@ -202,4 +202,7 @@ extern int smb3_validate_negotiate(const unsigned int, struct cifs_tcon *); extern enum securityEnum smb2_select_sectype(struct TCP_Server_Info *, enum securityEnum); +#ifdef CONFIG_CIFS_SMB311 +extern int smb311_crypto_shash_allocate(struct TCP_Server_Info *server); +#endif #endif /* _SMB2PROTO_H */ 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) { |