diff options
| -rw-r--r-- | fs/cifs/cifssmb.c | 25 |
1 files changed, 16 insertions, 9 deletions
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index 1a37763..e639610 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -539,6 +539,20 @@ decode_lanman_negprot_rsp(struct TCP_Server_Info *server, NEGOTIATE_RSP *pSMBr, } #endif +static bool +should_set_ext_sec_flag(unsigned int secFlags) +{ + if ((secFlags & CIFSSEC_MUST_KRB5) == CIFSSEC_MUST_KRB5) + return true; + else if ((secFlags & CIFSSEC_AUTH_MASK) == CIFSSEC_MAY_KRB5) + return true; + else if ((secFlags & CIFSSEC_MUST_NTLMSSP) == CIFSSEC_MUST_NTLMSSP) + return true; + else if ((secFlags & CIFSSEC_AUTH_MASK) == CIFSSEC_MAY_NTLMSSP) + return true; + return false; +} + int CIFSSMBNegotiate(const unsigned int xid, struct cifs_ses *ses) { @@ -572,15 +586,8 @@ CIFSSMBNegotiate(const unsigned int xid, struct cifs_ses *ses) pSMB->hdr.Mid = get_next_mid(server); pSMB->hdr.Flags2 |= (SMBFLG2_UNICODE | SMBFLG2_ERR_STATUS); - if ((secFlags & CIFSSEC_MUST_KRB5) == CIFSSEC_MUST_KRB5) - pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC; - else if ((secFlags & CIFSSEC_AUTH_MASK) == CIFSSEC_MAY_KRB5) { - cifs_dbg(FYI, "Kerberos only mechanism, enable extended security\n"); - pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC; - } else if ((secFlags & CIFSSEC_MUST_NTLMSSP) == CIFSSEC_MUST_NTLMSSP) - pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC; - else if ((secFlags & CIFSSEC_AUTH_MASK) == CIFSSEC_MAY_NTLMSSP) { - cifs_dbg(FYI, "NTLMSSP only mechanism, enable extended security\n"); + if (should_set_ext_sec_flag(secFlags)) { + cifs_dbg(FYI, "Requesting extended security."); pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC; } |
