diff options
Diffstat (limited to 'fs/cifs')
| -rw-r--r-- | fs/cifs/cifsencrypt.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c index 259991bd2112..e76bfeb68267 100644 --- a/fs/cifs/cifsencrypt.c +++ b/fs/cifs/cifsencrypt.c @@ -87,9 +87,15 @@ int cifs_sign_smb(struct smb_hdr *cifs_pdu, struct TCP_Server_Info *server, if ((cifs_pdu == NULL) || (server == NULL)) return -EINVAL; - if ((cifs_pdu->Flags2 & SMBFLG2_SECURITY_SIGNATURE) == 0) + if (!(cifs_pdu->Flags2 & SMBFLG2_SECURITY_SIGNATURE) || + server->tcpStatus == CifsNeedNegotiate) return rc; + if (!server->session_estab) { + strncpy(cifs_pdu->Signature.SecuritySignature, "BSRSPYL", 8); + return rc; + } + cifs_pdu->Signature.Sequence.SequenceNumber = cpu_to_le32(server->sequence_number); cifs_pdu->Signature.Sequence.Reserved = 0; @@ -178,9 +184,15 @@ int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *server, if ((cifs_pdu == NULL) || (server == NULL)) return -EINVAL; - if ((cifs_pdu->Flags2 & SMBFLG2_SECURITY_SIGNATURE) == 0) + if (!(cifs_pdu->Flags2 & SMBFLG2_SECURITY_SIGNATURE) || + server->tcpStatus == CifsNeedNegotiate) return rc; + if (!server->session_estab) { + strncpy(cifs_pdu->Signature.SecuritySignature, "BSRSPYL", 8); + return rc; + } + cifs_pdu->Signature.Sequence.SequenceNumber = cpu_to_le32(server->sequence_number); cifs_pdu->Signature.Sequence.Reserved = 0; |