---

yaml
---
r: 39523
b: refs/heads/master
c: 9ac00b7
h: refs/heads/master
i:
  39521: 90293e0
  39519: 5173f1a
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: f46d3e11903e452924ef2996aa9aca2aae4427e2
+refs/heads/master: 9ac00b7d96045fa3ce573e0ad5cdc0350ad8e1d2

trunk/fs/cifs/cifsfs.c

@@ -199,10 +199,12 @@ cifs_statfs(struct dentry *dentry, struct kstatfs *buf)
     /* Only need to call the old QFSInfo if failed
     on newer one */
     if(rc)
-	rc = CIFSSMBQFSInfo(xid, pTcon, buf);
+	if((pTcon->ses->flags & CIFS_SES_LANMAN) == 0)
+		rc = CIFSSMBQFSInfo(xid, pTcon, buf); /* not supported by OS2 */
 
-	/* Old Windows servers do not support level 103, retry with level 
-	   one if old server failed the previous call */ 
+	/* Some old Windows servers also do not support level 103, retry with
+	   older level one if old server failed the previous call or we
+	   bypassed it because we detected that this was an older LANMAN sess */
 	if(rc)
 		rc = SMBOldQFSInfo(xid, pTcon, buf);
 	/*     

trunk/fs/cifs/cifsglob.h

@@ -203,9 +203,14 @@ struct cifsSesInfo {
 	char * domainName;
 	char * password;
 };
-/* session flags */
+/* no more than one of the following three session flags may be set */
 #define CIFS_SES_NT4 1
-
+#define CIFS_SES_OS2 2
+#define CIFS_SES_W9X 4
+/* following flag is set for old servers such as OS2 (and Win95?)
+   which do not negotiate NTLM or POSIX dialects, but instead
+   negotiate one of the older LANMAN dialects */
+#define CIFS_SES_LANMAN 8
 /*
  * there is one of these for each connection to a resource on a particular
  * session 

trunk/fs/cifs/cifspdu.h

@@ -26,7 +26,8 @@
 
 #ifdef CONFIG_CIFS_WEAK_PW_HASH
 #define LANMAN_PROT 0
-#define CIFS_PROT   1
+#define LANMAN2_PROT 1
+#define CIFS_PROT   2
 #else
 #define CIFS_PROT   0
 #endif

trunk/fs/cifs/cifssmb.c

@@ -46,6 +46,7 @@ static struct {
 } protocols[] = {
 #ifdef CONFIG_CIFS_WEAK_PW_HASH
 	{LANMAN_PROT, "\2LM1.2X002"},
+	{LANMAN2_PROT, "\2LANMAN2.1"},
 #endif /* weak password hashing for legacy clients */
 	{CIFS_PROT, "\2NT LM 0.12"}, 
 	{POSIX_PROT, "\2POSIX 2"},
@@ -67,13 +68,13 @@ static struct {
 /* define the number of elements in the cifs dialect array */
 #ifdef CONFIG_CIFS_POSIX
 #ifdef CONFIG_CIFS_WEAK_PW_HASH
-#define CIFS_NUM_PROT 3
+#define CIFS_NUM_PROT 4
 #else
 #define CIFS_NUM_PROT 2
 #endif /* CIFS_WEAK_PW_HASH */
 #else /* not posix */
 #ifdef CONFIG_CIFS_WEAK_PW_HASH
-#define CIFS_NUM_PROT 2
+#define CIFS_NUM_PROT 3
 #else
 #define CIFS_NUM_PROT 1
 #endif /* CONFIG_CIFS_WEAK_PW_HASH */
@@ -446,7 +447,8 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses)
 		goto neg_err_exit;
 #ifdef CONFIG_CIFS_WEAK_PW_HASH 
 	} else if((pSMBr->hdr.WordCount == 13)
-			&& (pSMBr->DialectIndex == LANMAN_PROT)) {
+			&& ((pSMBr->DialectIndex == LANMAN_PROT)
+				|| (pSMBr->DialectIndex == LANMAN2_PROT))) {
 		int tmp, adjust;
 		struct lanman_neg_rsp * rsp = (struct lanman_neg_rsp *)pSMBr;
 

trunk/fs/cifs/connect.c

@@ -3316,6 +3316,7 @@ int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo,
 		first_time = 1;
 	}
 	if (!rc) {
+		pSesInfo->flags = 0;
 		pSesInfo->capabilities = pSesInfo->server->capabilities;
 		if(linuxExtEnabled == 0)
 			pSesInfo->capabilities &= (~CAP_UNIX);

trunk/fs/cifs/sess.c

@@ -268,6 +268,10 @@ static int decode_ascii_ssetup(char ** pbcc_area, int bleft, struct cifsSesInfo
 	ses->serverOS = kzalloc(len + 1, GFP_KERNEL);
 	if(ses->serverOS)
 		strncpy(ses->serverOS, bcc_ptr, len);
+	if(strncmp(ses->serverOS, "OS/2",4) == 0) {
+			cFYI(1,("OS/2 server"));
+			ses->flags |= CIFS_SES_OS2;
+	}
 
 	bcc_ptr += len + 1;
 	bleft -= len + 1;
@@ -290,16 +294,11 @@ static int decode_ascii_ssetup(char ** pbcc_area, int bleft, struct cifsSesInfo
         if(len > bleft)
                 return rc;
 
-        if(ses->serverDomain)
-                kfree(ses->serverDomain);
-
-        ses->serverDomain = kzalloc(len + 1, GFP_KERNEL);
-        if(ses->serverOS)
-                strncpy(ses->serverOS, bcc_ptr, len);
-
-        bcc_ptr += len + 1;
-	bleft -= len + 1;
-
+	/* No domain field in LANMAN case. Domain is
+	   returned by old servers in the SMB negprot response */
+	/* BB For newer servers which do not support Unicode,
+	   but thus do return domain here we could add parsing
+	   for it later, but it is not very important */
 	cFYI(1,("ascii: bytes left %d",bleft));
 
 	return rc;
@@ -366,6 +365,8 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time,
 	str_area = kmalloc(2000, GFP_KERNEL);
 	bcc_ptr = str_area;
 
+	ses->flags &= ~CIFS_SES_LANMAN;
+
 	if(type == LANMAN) {
 #ifdef CONFIG_CIFS_WEAK_PW_HASH
 		char lnm_session_key[CIFS_SESS_KEY_SIZE];
@@ -377,7 +378,7 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time,
 		/* and copy into bcc */
 
 		calc_lanman_hash(ses, lnm_session_key);
-
+		ses->flags |= CIFS_SES_LANMAN; 
 /* #ifdef CONFIG_CIFS_DEBUG2
 		cifs_dump_mem("cryptkey: ",ses->server->cryptKey,
 			CIFS_SESS_KEY_SIZE);