Merge branch 'for-linus' of git://git.samba.org/sfrench/cifs-2.6

Pull CIFS updates from Steve French:
 "Includes a couple of fixes, plus changes to make multiplex identifiers
  easier to read and correlate with network traces, and a set of
  enhancements for SMB3 dialect.  Also adds support for per-file
  compression for both cifs and smb2/smb3 ("chattr +c filename).

  Should have at least one other merge request ready by next week with
  some new SMB3 security features and copy offload support"

* 'for-linus' of git://git.samba.org/sfrench/cifs-2.6:
  Query network adapter info at mount time for debugging
  Fix unused variable warning when CIFS POSIX disabled
  Allow setting per-file compression via CIFS protocol
  Query File System Alignment
  Query device characteristics at mount time from server on SMB2/3 not just on cifs mounts
  cifs: Send a logoff request before removing a smb session
  cifs: Make big endian multiplex ID sequences monotonic on the wire
  cifs: Remove redundant multiplex identifier check from check_smb_hdr()
  Query file system attributes from server on SMB2, not just cifs, mounts
  Allow setting per-file compression via SMB2/3
  Fix corrupt SMB2 ioctl requests

1 files changed, 114 insertions, 0 deletions

diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 861b33214144..c571be8cb76e 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -209,6 +209,94 @@ smb2_negotiate_rsize(struct cifs_tcon *tcon, struct smb_vol *volume_info)
 	return rsize;
 }
 
+#ifdef CONFIG_CIFS_STATS2
+static int
+SMB3_request_interfaces(const unsigned int xid, struct cifs_tcon *tcon)
+{
+	int rc;
+	unsigned int ret_data_len = 0;
+	struct network_interface_info_ioctl_rsp *out_buf;
+
+	rc = SMB2_ioctl(xid, tcon, NO_FILE_ID, NO_FILE_ID,
+			FSCTL_QUERY_NETWORK_INTERFACE_INFO, true /* is_fsctl */,
+			NULL /* no data input */, 0 /* no data input */,
+			(char **)&out_buf, &ret_data_len);
+
+	if ((rc == 0)  && (ret_data_len > 0)) {
+		/* Dump info on first interface */
+		cifs_dbg(FYI, "Adapter Capability 0x%x\t",
+			le32_to_cpu(out_buf->Capability));
+		cifs_dbg(FYI, "Link Speed %lld\n",
+			le64_to_cpu(out_buf->LinkSpeed));
+	} else
+		cifs_dbg(VFS, "error %d on ioctl to get interface list\n", rc);
+
+	return rc;
+}
+#endif /* STATS2 */
+
+static void
+smb3_qfs_tcon(const unsigned int xid, struct cifs_tcon *tcon)
+{
+	int rc;
+	__le16 srch_path = 0; /* Null - open root of share */
+	u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
+	struct cifs_open_parms oparms;
+	struct cifs_fid fid;
+
+	oparms.tcon = tcon;
+	oparms.desired_access = FILE_READ_ATTRIBUTES;
+	oparms.disposition = FILE_OPEN;
+	oparms.create_options = 0;
+	oparms.fid = &fid;
+	oparms.reconnect = false;
+
+	rc = SMB2_open(xid, &oparms, &srch_path, &oplock, NULL, NULL);
+	if (rc)
+		return;
+
+#ifdef CONFIG_CIFS_STATS2
+	SMB3_request_interfaces(xid, tcon);
+#endif /* STATS2 */
+
+	SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid,
+			FS_ATTRIBUTE_INFORMATION);
+	SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid,
+			FS_DEVICE_INFORMATION);
+	SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid,
+			FS_SECTOR_SIZE_INFORMATION); /* SMB3 specific */
+	SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid);
+	return;
+}
+
+static void
+smb2_qfs_tcon(const unsigned int xid, struct cifs_tcon *tcon)
+{
+	int rc;
+	__le16 srch_path = 0; /* Null - open root of share */
+	u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
+	struct cifs_open_parms oparms;
+	struct cifs_fid fid;
+
+	oparms.tcon = tcon;
+	oparms.desired_access = FILE_READ_ATTRIBUTES;
+	oparms.disposition = FILE_OPEN;
+	oparms.create_options = 0;
+	oparms.fid = &fid;
+	oparms.reconnect = false;
+
+	rc = SMB2_open(xid, &oparms, &srch_path, &oplock, NULL, NULL);
+	if (rc)
+		return;
+
+	SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid,
+			FS_ATTRIBUTE_INFORMATION);
+	SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid,
+			FS_DEVICE_INFORMATION);
+	SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid);
+	return;
+}
+
 static int
 smb2_is_path_accessible(const unsigned int xid, struct cifs_tcon *tcon,
 			struct cifs_sb_info *cifs_sb, const char *full_path)
@@ -304,7 +392,19 @@ smb2_dump_share_caps(struct seq_file *m, struct cifs_tcon *tcon)
 		seq_puts(m, " ASYMMETRIC,");
 	if (tcon->capabilities == 0)
 		seq_puts(m, " None");
+	if (tcon->ss_flags & SSINFO_FLAGS_ALIGNED_DEVICE)
+		seq_puts(m, " Aligned,");
+	if (tcon->ss_flags & SSINFO_FLAGS_PARTITION_ALIGNED_ON_DEVICE)
+		seq_puts(m, " Partition Aligned,");
+	if (tcon->ss_flags & SSINFO_FLAGS_NO_SEEK_PENALTY)
+		seq_puts(m, " SSD,");
+	if (tcon->ss_flags & SSINFO_FLAGS_TRIM_ENABLED)
+		seq_puts(m, " TRIM-support,");
+
 	seq_printf(m, "\tShare Flags: 0x%x", tcon->share_flags);
+	if (tcon->perf_sector_size)
+		seq_printf(m, "\tOptimal sector size: 0x%x",
+			   tcon->perf_sector_size);
 }
 
 static void
@@ -446,6 +546,14 @@ smb2_set_file_size(const unsigned int xid, struct cifs_tcon *tcon,
 }
 
 static int
+smb2_set_compression(const unsigned int xid, struct cifs_tcon *tcon,
+		   struct cifsFileInfo *cfile)
+{
+	return SMB2_set_compression(xid, tcon, cfile->fid.persistent_fid,
+			    cfile->fid.volatile_fid);
+}
+
+static int
 smb2_query_dir_first(const unsigned int xid, struct cifs_tcon *tcon,
 		     const char *path, struct cifs_sb_info *cifs_sb,
 		     struct cifs_fid *fid, __u16 search_flags,
@@ -865,6 +973,7 @@ struct smb_version_operations smb20_operations = {
 	.logoff = SMB2_logoff,
 	.tree_connect = SMB2_tcon,
 	.tree_disconnect = SMB2_tdis,
+	.qfs_tcon = smb2_qfs_tcon,
 	.is_path_accessible = smb2_is_path_accessible,
 	.can_echo = smb2_can_echo,
 	.echo = SMB2_echo,
@@ -874,6 +983,7 @@ struct smb_version_operations smb20_operations = {
 	.set_path_size = smb2_set_path_size,
 	.set_file_size = smb2_set_file_size,
 	.set_file_info = smb2_set_file_info,
+	.set_compression = smb2_set_compression,
 	.mkdir = smb2_mkdir,
 	.mkdir_setinfo = smb2_mkdir_setinfo,
 	.rmdir = smb2_rmdir,
@@ -936,6 +1046,7 @@ struct smb_version_operations smb21_operations = {
 	.logoff = SMB2_logoff,
 	.tree_connect = SMB2_tcon,
 	.tree_disconnect = SMB2_tdis,
+	.qfs_tcon = smb2_qfs_tcon,
 	.is_path_accessible = smb2_is_path_accessible,
 	.can_echo = smb2_can_echo,
 	.echo = SMB2_echo,
@@ -945,6 +1056,7 @@ struct smb_version_operations smb21_operations = {
 	.set_path_size = smb2_set_path_size,
 	.set_file_size = smb2_set_file_size,
 	.set_file_info = smb2_set_file_info,
+	.set_compression = smb2_set_compression,
 	.mkdir = smb2_mkdir,
 	.mkdir_setinfo = smb2_mkdir_setinfo,
 	.rmdir = smb2_rmdir,
@@ -1008,6 +1120,7 @@ struct smb_version_operations smb30_operations = {
 	.logoff = SMB2_logoff,
 	.tree_connect = SMB2_tcon,
 	.tree_disconnect = SMB2_tdis,
+	.qfs_tcon = smb3_qfs_tcon,
 	.is_path_accessible = smb2_is_path_accessible,
 	.can_echo = smb2_can_echo,
 	.echo = SMB2_echo,
@@ -1017,6 +1130,7 @@ struct smb_version_operations smb30_operations = {
 	.set_path_size = smb2_set_path_size,
 	.set_file_size = smb2_set_file_size,
 	.set_file_info = smb2_set_file_info,
+	.set_compression = smb2_set_compression,
 	.mkdir = smb2_mkdir,
 	.mkdir_setinfo = smb2_mkdir_setinfo,
 	.rmdir = smb2_rmdir,