Adding upstream version 6.10.6.upstream/6.10.6upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

8 files changed, 51 insertions, 13 deletions

diff --git a/fs/smb/client/cifs_debug.c b/fs/smb/client/cifs_debug.c
index c71ae5c043..4a20e92474 100644
--- a/fs/smb/client/cifs_debug.c
+++ b/fs/smb/client/cifs_debug.c
@@ -1072,7 +1072,7 @@ static int cifs_security_flags_proc_open(struct inode *inode, struct file *file)
 static void
 cifs_security_flags_handle_must_flags(unsigned int *flags)
 {
-	unsigned int signflags = *flags & CIFSSEC_MUST_SIGN;
+	unsigned int signflags = *flags & (CIFSSEC_MUST_SIGN | CIFSSEC_MUST_SEAL);
 
 	if ((*flags & CIFSSEC_MUST_KRB5) == CIFSSEC_MUST_KRB5)
 		*flags = CIFSSEC_MUST_KRB5;
diff --git a/fs/smb/client/cifsglob.h b/fs/smb/client/cifsglob.h
index a865941724..d4bcc7da70 100644
--- a/fs/smb/client/cifsglob.h
+++ b/fs/smb/client/cifsglob.h
@@ -1901,7 +1901,7 @@ static inline bool is_replayable_error(int error)
 #define   CIFSSEC_MAY_SIGN	0x00001
 #define   CIFSSEC_MAY_NTLMV2	0x00004
 #define   CIFSSEC_MAY_KRB5	0x00008
-#define   CIFSSEC_MAY_SEAL	0x00040 /* not supported yet */
+#define   CIFSSEC_MAY_SEAL	0x00040
 #define   CIFSSEC_MAY_NTLMSSP	0x00080 /* raw ntlmssp with ntlmv2 */
 
 #define   CIFSSEC_MUST_SIGN	0x01001
@@ -1911,11 +1911,11 @@ require use of the stronger protocol */
 #define   CIFSSEC_MUST_NTLMV2	0x04004
 #define   CIFSSEC_MUST_KRB5	0x08008
 #ifdef CONFIG_CIFS_UPCALL
-#define   CIFSSEC_MASK          0x8F08F /* flags supported if no weak allowed */
+#define   CIFSSEC_MASK          0xCF0CF /* flags supported if no weak allowed */
 #else
-#define	  CIFSSEC_MASK          0x87087 /* flags supported if no weak allowed */
+#define	  CIFSSEC_MASK          0xC70C7 /* flags supported if no weak allowed */
 #endif /* UPCALL */
-#define   CIFSSEC_MUST_SEAL	0x40040 /* not supported yet */
+#define   CIFSSEC_MUST_SEAL	0x40040
 #define   CIFSSEC_MUST_NTLMSSP	0x80080 /* raw ntlmssp with ntlmv2 */
 
 #define   CIFSSEC_DEF (CIFSSEC_MAY_SIGN | CIFSSEC_MAY_NTLMV2 | CIFSSEC_MAY_NTLMSSP | CIFSSEC_MAY_SEAL)
diff --git a/fs/smb/client/inode.c b/fs/smb/client/inode.c
index 4a8aa1de95..dd0afa2373 100644
--- a/fs/smb/client/inode.c
+++ b/fs/smb/client/inode.c
@@ -1042,13 +1042,26 @@ static int reparse_info_to_fattr(struct cifs_open_info_data *data,
 	}
 
 	rc = -EOPNOTSUPP;
-	switch ((data->reparse.tag = tag)) {
-	case 0: /* SMB1 symlink */
+	data->reparse.tag = tag;
+	if (!data->reparse.tag) {
 		if (server->ops->query_symlink) {
 			rc = server->ops->query_symlink(xid, tcon,
 							cifs_sb, full_path,
 							&data->symlink_target);
 		}
+		if (rc == -EOPNOTSUPP)
+			data->reparse.tag = IO_REPARSE_TAG_INTERNAL;
+	}
+
+	switch (data->reparse.tag) {
+	case 0: /* SMB1 symlink */
+		break;
+	case IO_REPARSE_TAG_INTERNAL:
+		rc = 0;
+		if (le32_to_cpu(data->fi.Attributes) & ATTR_DIRECTORY) {
+			cifs_create_junction_fattr(fattr, sb);
+			goto out;
+		}
 		break;
 	case IO_REPARSE_TAG_MOUNT_POINT:
 		cifs_create_junction_fattr(fattr, sb);
diff --git a/fs/smb/client/misc.c b/fs/smb/client/misc.c
index 07c468ddb8..65d4b72b4d 100644
--- a/fs/smb/client/misc.c
+++ b/fs/smb/client/misc.c
@@ -1288,6 +1288,7 @@ int cifs_inval_name_dfs_link_error(const unsigned int xid,
 				   const char *full_path,
 				   bool *islink)
 {
+	struct TCP_Server_Info *server = tcon->ses->server;
 	struct cifs_ses *ses = tcon->ses;
 	size_t len;
 	char *path;
@@ -1304,12 +1305,12 @@ int cifs_inval_name_dfs_link_error(const unsigned int xid,
 	    !is_tcon_dfs(tcon))
 		return 0;
 
-	spin_lock(&tcon->tc_lock);
-	if (!tcon->origin_fullpath) {
-		spin_unlock(&tcon->tc_lock);
+	spin_lock(&server->srv_lock);
+	if (!server->leaf_fullpath) {
+		spin_unlock(&server->srv_lock);
 		return 0;
 	}
-	spin_unlock(&tcon->tc_lock);
+	spin_unlock(&server->srv_lock);
 
 	/*
 	 * Slow path - tcon is DFS and @full_path has prefix path, so attempt
diff --git a/fs/smb/client/reparse.c b/fs/smb/client/reparse.c
index a0ffbda907..689d8a506d 100644
--- a/fs/smb/client/reparse.c
+++ b/fs/smb/client/reparse.c
@@ -505,6 +505,10 @@ bool cifs_reparse_point_to_fattr(struct cifs_sb_info *cifs_sb,
 	}
 
 	switch (tag) {
+	case IO_REPARSE_TAG_INTERNAL:
+		if (!(fattr->cf_cifsattrs & ATTR_DIRECTORY))
+			return false;
+		fallthrough;
 	case IO_REPARSE_TAG_DFS:
 	case IO_REPARSE_TAG_DFSR:
 	case IO_REPARSE_TAG_MOUNT_POINT:
diff --git a/fs/smb/client/reparse.h b/fs/smb/client/reparse.h
index 6b55d1df9e..2c0644bc4e 100644
--- a/fs/smb/client/reparse.h
+++ b/fs/smb/client/reparse.h
@@ -12,6 +12,12 @@
 #include "fs_context.h"
 #include "cifsglob.h"
 
+/*
+ * Used only by cifs.ko to ignore reparse points from files when client or
+ * server doesn't support FSCTL_GET_REPARSE_POINT.
+ */
+#define IO_REPARSE_TAG_INTERNAL ((__u32)~0U)
+
 static inline dev_t reparse_nfs_mkdev(struct reparse_posix_data *buf)
 {
 	u64 v = le64_to_cpu(*(__le64 *)buf->DataBuffer);
@@ -78,10 +84,19 @@ static inline u32 reparse_mode_wsl_tag(mode_t mode)
 static inline bool reparse_inode_match(struct inode *inode,
 				       struct cifs_fattr *fattr)
 {
+	struct cifsInodeInfo *cinode = CIFS_I(inode);
 	struct timespec64 ctime = inode_get_ctime(inode);
 
-	return (CIFS_I(inode)->cifsAttrs & ATTR_REPARSE) &&
-		CIFS_I(inode)->reparse_tag == fattr->cf_cifstag &&
+	/*
+	 * Do not match reparse tags when client or server doesn't support
+	 * FSCTL_GET_REPARSE_POINT.  @fattr->cf_cifstag should contain correct
+	 * reparse tag from query dir response but the client won't be able to
+	 * read the reparse point data anyway.  This spares us a revalidation.
+	 */
+	if (cinode->reparse_tag != IO_REPARSE_TAG_INTERNAL &&
+	    cinode->reparse_tag != fattr->cf_cifstag)
+		return false;
+	return (cinode->cifsAttrs & ATTR_REPARSE) &&
 		timespec64_equal(&ctime, &fattr->cf_ctime);
 }
 
diff --git a/fs/smb/client/smb2inode.c b/fs/smb/client/smb2inode.c
index 5c02a12251..062b86a493 100644
--- a/fs/smb/client/smb2inode.c
+++ b/fs/smb/client/smb2inode.c
@@ -930,6 +930,8 @@ int smb2_query_path_info(const unsigned int xid,
 
 	switch (rc) {
 	case 0:
+		rc = parse_create_response(data, cifs_sb, &out_iov[0]);
+		break;
 	case -EOPNOTSUPP:
 		/*
 		 * BB TODO: When support for special files added to Samba
diff --git a/fs/smb/client/smb2pdu.c b/fs/smb/client/smb2pdu.c
index bb84a89e59..896147ba66 100644
--- a/fs/smb/client/smb2pdu.c
+++ b/fs/smb/client/smb2pdu.c
@@ -82,6 +82,9 @@ int smb3_encryption_required(const struct cifs_tcon *tcon)
 	if (tcon->seal &&
 	    (tcon->ses->server->capabilities & SMB2_GLOBAL_CAP_ENCRYPTION))
 		return 1;
+	if (((global_secflags & CIFSSEC_MUST_SEAL) == CIFSSEC_MUST_SEAL) &&
+	    (tcon->ses->server->capabilities & SMB2_GLOBAL_CAP_ENCRYPTION))
+		return 1;
 	return 0;
 }