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| author | Steve French <sfrench@us.ibm.com> | 2006-09-30 00:54:23 +0000 |
|---|---|---|
| committer | Steve French <sfrench@us.ibm.com> | 2006-09-30 00:54:23 +0000 |
| commit | 25ee4a98c662317a7973f3053567d4ec51857511 (patch) | |
| tree | 1795f787fb677c6941853b0e5a86b14dce5e7936 /fs/cifs/cifssmb.c | |
| parent | bf97d28711e2dc4dc947faa6477cd1b36b91a2da (diff) | |
| download | linux-3.10-25ee4a98c662317a7973f3053567d4ec51857511.tar.gz linux-3.10-25ee4a98c662317a7973f3053567d4ec51857511.tar.bz2 linux-3.10-25ee4a98c662317a7973f3053567d4ec51857511.zip | |
[CIFS] Handle legacy servers which return undefined time zone
Signed-off-by: Guenter Kukkukk <linux@kukkukk.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
Diffstat (limited to 'fs/cifs/cifssmb.c')
| -rw-r--r-- | fs/cifs/cifssmb.c | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index dcd7087a1ae..99718591ea2 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -447,6 +447,7 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) #ifdef CONFIG_CIFS_WEAK_PW_HASH } else if((pSMBr->hdr.WordCount == 13) && (pSMBr->DialectIndex == LANMAN_PROT)) { + int tmp, adjust; struct lanman_neg_rsp * rsp = (struct lanman_neg_rsp *)pSMBr; if((secFlags & CIFSSEC_MAY_LANMAN) || @@ -473,11 +474,36 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) server->capabilities = CAP_MPX_MODE; } server->timeZone = le16_to_cpu(rsp->ServerTimeZone); + tmp = le16_to_cpu(rsp->ServerTimeZone); + if (tmp == (int)0xffff) { + /* OS/2 often does not set timezone therefore + * we must use server time to calc time zone. + * Could deviate slightly from the right zone. Not easy + * to adjust, since timezones are not always a multiple + * of 60 (sometimes 30 minutes - are there smaller?) + */ + struct timespec ts, utc; + utc = CURRENT_TIME; + ts = cnvrtDosUnixTm(le16_to_cpu(rsp->SrvTime.Date), + le16_to_cpu(rsp->SrvTime.Time)); + cFYI(1,("SrvTime: %d sec since 1970 (utc: %d) diff: %d", + (int)ts.tv_sec, (int)utc.tv_sec, + (int)(utc.tv_sec - ts.tv_sec))); + tmp = (int)(utc.tv_sec - ts.tv_sec); + adjust = tmp < 0 ? -29 : 29; + tmp = ((tmp + adjust) / 60) * 60; + server->timeZone = tmp; + } else { + server->timeZone = tmp * 60; /* also in seconds */ + } + cFYI(1,("server->timeZone: %d seconds", server->timeZone)); + /* BB get server time for time conversions and add code to use it and timezone since this is not UTC */ - if (rsp->EncryptionKeyLength == cpu_to_le16(CIFS_CRYPTO_KEY_SIZE)) { + if (rsp->EncryptionKeyLength == + cpu_to_le16(CIFS_CRYPTO_KEY_SIZE)) { memcpy(server->cryptKey, rsp->EncryptionKey, CIFS_CRYPTO_KEY_SIZE); } else if (server->secMode & SECMODE_PW_ENCRYPT) { |