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[CIFS] Support for setting up SMB sessions to legacy lanman servers part 2

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This commit is contained in:
Steve French
2006-06-01 19:20:10 +00:00
parent 9c53588ec9
commit 7c7b25bc8e
9 changed files with 150 additions and 75 deletions
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27
fs/cifs/cifssmb.c
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@@ -438,12 +438,19 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses)
goto neg_err_exit;
} else if((pSMBr->hdr.WordCount == 13) &&
(pSMBr->DialectIndex == LANMAN_PROT)) {
#ifdef CONFIG_CIFS_WEAK_PW_HASH
struct lanman_neg_rsp * rsp =
(struct lanman_neg_rsp *)pSMBr;
/* BB Mark ses struct as negotiated lanman level BB */
server->secType = LANMAN;
if((extended_security & CIFSSEC_MAY_LANMAN) ||
(extended_security & CIFSSEC_MAY_PLNTXT))
server->secType = LANMAN;
else {
cERROR(1, ("mount failed weak security disabled"
" in /proc/fs/cifs/SecurityFlags"));
rc = -EOPNOTSUPP;
goto neg_err_exit;
}
server->secMode = (__u8)le16_to_cpu(rsp->SecurityMode);
server->maxReq = le16_to_cpu(rsp->MaxMpxCount);
server->maxBuf = min((__u32)le16_to_cpu(rsp->MaxBufSize),
@@ -469,6 +476,11 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses)
}
cFYI(1,("LANMAN negotiated")); /* BB removeme BB */
#else /* weak security disabled */
cERROR(1,("mount failed, cifs module not built with "
"CIFS_WEAK_PW_HASH support"));
rc = -EOPNOTSUPP;
#endif /* WEAK_PW_HASH */
goto neg_err_exit;
} else if(pSMBr->hdr.WordCount != 17) {
/* unknown wct */
@@ -479,8 +491,13 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses)
server->secMode = pSMBr->SecurityMode;
if((server->secMode & SECMODE_USER) == 0)
cFYI(1,("share mode security"));
server->secType = NTLM; /* BB override default for
NTLMv2 or kerberos v5 */
if(extended_security & CIFSSEC_MUST_NTLMV2)
server->secType = NTLMv2;
else
server->secType = NTLM;
/* else krb5 ... */
/* one byte - no need to convert this or EncryptionKeyLen
from little endian */
server->maxReq = le16_to_cpu(pSMBr->MaxMpxCount);