Wiki code for Heads Up: Flag Day (CIFS Service)

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1: == Heads Up: Flag Day (CIFS Service)
2: 
3: {{{
4: 
5: Date: Fri, 26 Oct 2007 01:05:12 -0700
6: From: "Alan.M.Wright" <amw at Sun dot COM>
7: To: onnv-gate at onnv dot eng dot sun dot com
8: Subject: Heads Up: Flag Day (CIFS Service)
9: 
10: PSARC 2006/715 CIFS Service
11: CR 6617183
12: 
13: The Common Internet File System (CIFS), also known as SMB, is the standard
14: for Microsoft file sharing services.  The Solaris CIFS Service provides
15: the file sharing and MSRPC administration services required for Windows-
16: like behavior for interoperability with CIFS clients.  This putback also
17: includes numerous other enhancements to support an integrated set of CIFS
18: file sharing services and technologies (see PSARC 2006/715 for associated
19: PSARC cases).
20: 
21: Heads Up and Flag Day Announcements
22: 
23:     1. VFS and file system changes
24:     2. Samba and the NetBIOS and SMB ports
25:     3. CIFS Service
26: 
27: 1. VFS and file system changes
28: 
29: Numerous interface changes have been made at the VFS layer to support CIFS
30: semantics.  All ON file systems have been updated to the new interface.
31: In addition, ZFS and NFS have been modified to support CIFS semantics.
32: 
33: Do not use file system kernel modules compiled on a previous build of
34: Solaris.  Attempts to load a file system with an older (non-CIFS enabled)
35: interface will result in a failure to load that module and the following
36: message will appear at the console:
37: 
38:         WARNING: file system ’xxx’ version mismatch
39: 
40: Where ’xxx’ is the name of the file system.
41: 
42: Most of the file system commands (ls, cp, chmod, and tar) have already
43: been modified to accommodate these changes.  The pax and cpio commands
44: have not yet been modified and will simply ignore the new Windows-style
45: attributes.  Please see the following PSARC cases for further details:
46: 
47:     PSARC 2007/124 Strong Type-Checking for VFS Operation Registration
48:     Mechanism
49:     PSARC 2007/218 caller_context_t in all VOPs
50:     PSARC 2007/227 VFS Feature Registration and ACL on Create
51:     PSARC 2007/244 ZFS case-insensitive support
52:     PSARC 2007/268 Support for CIFS share reservations
53:     PSARC 2007/315 Extensible Attribute Interfaces
54:     PSARC 2007/403 Modified Access Checks for CIFS
55:     PSARC 2007/440 nbmand changes for CIFS Service
56:     PSARC 2007/394 ls(1) new command line options ’-/’ and ’-%’: CIFS system
57:     attributes support
58:     PSARC 2007/410 Add system attribute support to chmod(1)
59:     PSARC 2007/432  CIFS system attributes support for cp(1), pack(1),
60:     unpack(1), compress(1) and uncompress(1)
61:     PSARC 2007/459  CIFS system attributes support for cpio(1), pax(1),
62: tar(1)
63: 
64: 2. Samba and the NetBIOS and SMB ports
65: 
66: The NetBIOS and SMB ports are now protected with a new privilege: sys_smb,
67: which is similar to sys_nfs.  The sys_smb privilege is required to bind to
68: ports 137, 138, 139 and/or 445.  Dependent on how Samba is launched, a
69: change may be required to bind to these ports.  See the smb/server manifest
70: for details of how the CIFS service is started.
71: 
72: Also, not that use of Samba and the CIFS service is mutually exclusive
73: on a system, since both attempt to bind to the same ports.
74: 
75: 3. Using the CIFS Services
76: 
77: The initial integration of the Solaris CIFS service supports both workgroup
78: and domain modes, and provides a comprehensive CIFS file sharing service
79: implementation.  For the highest level of CIFS interoperability, use ZFS
80: in mixed casesensitivity mode (see PSARC 2007/244).  This will retain the
81: expected behavior for local and NFS access whilst maximizing inter-
82: operability with Windows, MacOS and other CIFS clients.  Note that the
83: casesensitivity mode of a ZFS file system must be set at creation time
84: and cannot be changed after creation.
85: 
86: This is a phased project and there are limitations at this time:
87: 
88:     Partial support for SPARC platforms.  File sharing is available on
89:     SPARC but not all MSRPC services are available.  Parity across x86
90:     and SPARC is expected follow within 30 days.
91: 
92:     Support for NT4.0 domains requires additional integration with other
93:     services in Solaris.  Active Directory domains are supported, as is
94:     Workgroup mode, which allows use of Solaris CIFS in a NIS environment
95:     without any Windows domain infrastructure.
96: 
97:     Cross-protocol mandatory file lock integration is not yet complete.
98:     NFS and CIFS are self-consistent but it is still possible to access
99:     a file via NFS that has been locked by a CIFS client.  The ARC cases
100:     to support full cross-protocol lock integration have been approved
101:     and are included with this putback.  Integration will be completed in
102:     phase 2 of the CIFS project.
103: 
104:     CIFS print services are not included in this release.
105: 
106: A preliminary draft of System Administration Guide: Windows Interoperability
107: for the Solaris OS will be available in the near future on the Solaris CIFS
108: server project page at OpenSolaris.org (available soon).  The following man
109: pages are being prepared (also available in the PSARC 2006/715 materials).
110: 
111:     sharctl(1M)
112:     sharemgr(1M)
113:     smbadm(1M)
114:     smbd(1M)
115:     smbstat(1M)
116:     smb(4)
117:     smbautohome(4) (man page may appear as smb_autohome initially)
118: 
119: Bugster Categories
120: 
121:     solaris/kernel/cifs     CIFS server kernel
122:     solaris/utility/cifs      CIFS server user land
123: 
124: Contact Information
125: 
126: To contact the CIFS team, send mail to ’cifs-core at sun dot com’.
127: Join the CIFS discussion at ’cifs-discuss at opensolaris dot org’.
128: 
129: See also http://www.opensolaris.org/community/os/cifs (soon).
130: 
131: Alan
132: 
133: }}}
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