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authorSteve French <sfrench@us.ibm.com>2006-09-29 20:54:23 -0400
committerSteve French <sfrench@us.ibm.com>2006-09-29 20:54:23 -0400
commit25ee4a98c662317a7973f3053567d4ec51857511 (patch)
tree1795f787fb677c6941853b0e5a86b14dce5e7936 /fs/cifs/cifssmb.c
parentbf97d28711e2dc4dc947faa6477cd1b36b91a2da (diff)
[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.c28
1 files changed, 27 insertions, 1 deletions
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index dcd7087a1ae8..99718591ea29 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -447,6 +447,7 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses)
447#ifdef CONFIG_CIFS_WEAK_PW_HASH 447#ifdef CONFIG_CIFS_WEAK_PW_HASH
448 } else if((pSMBr->hdr.WordCount == 13) 448 } else if((pSMBr->hdr.WordCount == 13)
449 && (pSMBr->DialectIndex == LANMAN_PROT)) { 449 && (pSMBr->DialectIndex == LANMAN_PROT)) {
450 int tmp, adjust;
450 struct lanman_neg_rsp * rsp = (struct lanman_neg_rsp *)pSMBr; 451 struct lanman_neg_rsp * rsp = (struct lanman_neg_rsp *)pSMBr;
451 452
452 if((secFlags & CIFSSEC_MAY_LANMAN) || 453 if((secFlags & CIFSSEC_MAY_LANMAN) ||
@@ -473,11 +474,36 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses)
473 server->capabilities = CAP_MPX_MODE; 474 server->capabilities = CAP_MPX_MODE;
474 } 475 }
475 server->timeZone = le16_to_cpu(rsp->ServerTimeZone); 476 server->timeZone = le16_to_cpu(rsp->ServerTimeZone);
477 tmp = le16_to_cpu(rsp->ServerTimeZone);
478 if (tmp == (int)0xffff) {
479 /* OS/2 often does not set timezone therefore
480 * we must use server time to calc time zone.
481 * Could deviate slightly from the right zone. Not easy
482 * to adjust, since timezones are not always a multiple
483 * of 60 (sometimes 30 minutes - are there smaller?)
484 */
485 struct timespec ts, utc;
486 utc = CURRENT_TIME;
487 ts = cnvrtDosUnixTm(le16_to_cpu(rsp->SrvTime.Date),
488 le16_to_cpu(rsp->SrvTime.Time));
489 cFYI(1,("SrvTime: %d sec since 1970 (utc: %d) diff: %d",
490 (int)ts.tv_sec, (int)utc.tv_sec,
491 (int)(utc.tv_sec - ts.tv_sec)));
492 tmp = (int)(utc.tv_sec - ts.tv_sec);
493 adjust = tmp < 0 ? -29 : 29;
494 tmp = ((tmp + adjust) / 60) * 60;
495 server->timeZone = tmp;
496 } else {
497 server->timeZone = tmp * 60; /* also in seconds */
498 }
499 cFYI(1,("server->timeZone: %d seconds", server->timeZone));
500
476 501
477 /* BB get server time for time conversions and add 502 /* BB get server time for time conversions and add
478 code to use it and timezone since this is not UTC */ 503 code to use it and timezone since this is not UTC */
479 504
480 if (rsp->EncryptionKeyLength == cpu_to_le16(CIFS_CRYPTO_KEY_SIZE)) { 505 if (rsp->EncryptionKeyLength ==
506 cpu_to_le16(CIFS_CRYPTO_KEY_SIZE)) {
481 memcpy(server->cryptKey, rsp->EncryptionKey, 507 memcpy(server->cryptKey, rsp->EncryptionKey,
482 CIFS_CRYPTO_KEY_SIZE); 508 CIFS_CRYPTO_KEY_SIZE);
483 } else if (server->secMode & SECMODE_PW_ENCRYPT) { 509 } else if (server->secMode & SECMODE_PW_ENCRYPT) {