diff options
| -rw-r--r-- | fs/smb/client/cifsencrypt.c | 1 | ||||
| -rw-r--r-- | fs/smb/client/cifsglob.h | 1 | ||||
| -rw-r--r-- | fs/smb/client/sess.c | 2 | ||||
| -rw-r--r-- | fs/smb/client/smb2misc.c | 28 | ||||
| -rw-r--r-- | fs/smb/client/smb2proto.h | 2 | ||||
| -rw-r--r-- | fs/smb/client/smb2transport.c | 30 |
6 files changed, 47 insertions, 17 deletions
diff --git a/fs/smb/client/cifsencrypt.c b/fs/smb/client/cifsencrypt.c index 2d851f596a72..464e6ccdfa5f 100644 --- a/fs/smb/client/cifsencrypt.c +++ b/fs/smb/client/cifsencrypt.c @@ -700,6 +700,7 @@ cifs_crypto_secmech_release(struct TCP_Server_Info *server) cifs_free_hash(&server->secmech.aes_cmac); cifs_free_hash(&server->secmech.hmacsha256); cifs_free_hash(&server->secmech.md5); + cifs_free_hash(&server->secmech.sha512); if (!SERVER_IS_CHAN(server)) { if (server->secmech.enc) { diff --git a/fs/smb/client/cifsglob.h b/fs/smb/client/cifsglob.h index 315aac5dec05..da35c160e7dd 100644 --- a/fs/smb/client/cifsglob.h +++ b/fs/smb/client/cifsglob.h @@ -180,6 +180,7 @@ struct session_key { struct cifs_secmech { struct shash_desc *md5; /* md5 hash function, for CIFS/SMB1 signatures */ struct shash_desc *hmacsha256; /* hmac-sha256 hash function, for SMB2 signatures */ + struct shash_desc *sha512; /* sha512 hash function, for SMB3.1.1 preauth hash */ struct shash_desc *aes_cmac; /* block-cipher based MAC function, for SMB3 signatures */ struct crypto_aead *enc; /* smb3 encryption AEAD TFM (AES-CCM and AES-GCM) */ diff --git a/fs/smb/client/sess.c b/fs/smb/client/sess.c index 03c0b484a4b5..3216f786908f 100644 --- a/fs/smb/client/sess.c +++ b/fs/smb/client/sess.c @@ -624,7 +624,7 @@ cifs_ses_add_channel(struct cifs_ses *ses, * to sign packets before we generate the channel signing key * (we sign with the session key) */ - rc = smb3_crypto_shash_allocate(chan->server); + rc = smb311_crypto_shash_allocate(chan->server); if (rc) { cifs_dbg(VFS, "%s: crypto alloc failed\n", __func__); mutex_unlock(&ses->session_mutex); diff --git a/fs/smb/client/smb2misc.c b/fs/smb/client/smb2misc.c index bdeb12ff53e3..f3c4b70b77b9 100644 --- a/fs/smb/client/smb2misc.c +++ b/fs/smb/client/smb2misc.c @@ -906,41 +906,41 @@ smb311_update_preauth_hash(struct cifs_ses *ses, struct TCP_Server_Info *server, || (hdr->Status != cpu_to_le32(NT_STATUS_MORE_PROCESSING_REQUIRED)))) return 0; + ok: - rc = cifs_alloc_hash("sha512", &sha512); - if (rc) { - cifs_dbg(VFS, "%s: Could not allocate SHA512 shash, rc=%d\n", __func__, rc); + rc = smb311_crypto_shash_allocate(server); + if (rc) return rc; - } + sha512 = server->secmech.sha512; rc = crypto_shash_init(sha512); if (rc) { - cifs_dbg(VFS, "%s: Could not init SHA512 shash, rc=%d\n", __func__, rc); - goto err_free; + cifs_dbg(VFS, "%s: Could not init sha512 shash\n", __func__); + return rc; } rc = crypto_shash_update(sha512, ses->preauth_sha_hash, SMB2_PREAUTH_HASH_SIZE); if (rc) { - cifs_dbg(VFS, "%s: Could not update SHA512 shash, rc=%d\n", __func__, rc); - goto err_free; + cifs_dbg(VFS, "%s: Could not update sha512 shash\n", __func__); + return rc; } for (i = 0; i < nvec; i++) { rc = crypto_shash_update(sha512, iov[i].iov_base, iov[i].iov_len); if (rc) { - cifs_dbg(VFS, "%s: Could not update SHA512 shash, rc=%d\n", __func__, rc); - goto err_free; + cifs_dbg(VFS, "%s: Could not update sha512 shash\n", + __func__); + return rc; } } rc = crypto_shash_final(sha512, ses->preauth_sha_hash); if (rc) { - cifs_dbg(VFS, "%s: Could not finalize SHA12 shash, rc=%d\n", __func__, rc); - goto err_free; + cifs_dbg(VFS, "%s: Could not finalize sha512 shash\n", + __func__); + return rc; } -err_free: - cifs_free_hash(&sha512); return 0; } diff --git a/fs/smb/client/smb2proto.h b/fs/smb/client/smb2proto.h index 56a896ff7cd9..c7e1b149877a 100644 --- a/fs/smb/client/smb2proto.h +++ b/fs/smb/client/smb2proto.h @@ -291,7 +291,7 @@ extern int smb2_validate_and_copy_iov(unsigned int offset, extern void smb2_copy_fs_info_to_kstatfs( struct smb2_fs_full_size_info *pfs_inf, struct kstatfs *kst); -extern int smb3_crypto_shash_allocate(struct TCP_Server_Info *server); +extern int smb311_crypto_shash_allocate(struct TCP_Server_Info *server); extern int smb311_update_preauth_hash(struct cifs_ses *ses, struct TCP_Server_Info *server, struct kvec *iov, int nvec); diff --git a/fs/smb/client/smb2transport.c b/fs/smb/client/smb2transport.c index f7e04c40d22e..c8bf0000f73b 100644 --- a/fs/smb/client/smb2transport.c +++ b/fs/smb/client/smb2transport.c @@ -26,7 +26,8 @@ #include "../common/smb2status.h" #include "smb2glob.h" -int smb3_crypto_shash_allocate(struct TCP_Server_Info *server) +static int +smb3_crypto_shash_allocate(struct TCP_Server_Info *server) { struct cifs_secmech *p = &server->secmech; int rc; @@ -45,6 +46,33 @@ err: return rc; } +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); + if (rc) + return rc; + + rc = cifs_alloc_hash("cmac(aes)", &p->aes_cmac); + if (rc) + goto err; + + rc = cifs_alloc_hash("sha512", &p->sha512); + if (rc) + goto err; + + return 0; + +err: + cifs_free_hash(&p->aes_cmac); + cifs_free_hash(&p->hmacsha256); + return rc; +} + + static int smb2_get_sign_key(__u64 ses_id, struct TCP_Server_Info *server, u8 *key) { |