Fix a stack overflow in mount_smbfs when hostname is too long.

The local hostname was blindly copied into the to the nn_name array.
When the hostname exceeded 16 bytes, it would overflow. Truncate the
hostname to 15 bytes plus a 0 terminator which is the "workstation name"
suffix.

Use defensive strlcpy() when filling nn_name in all cases.

PR: 228354
Reported by: donald.buchholz@intel.com
Reviewed by: jpaetzel, ian (prior version)
Discussed with: Security Officer (gtetlow)
MFC after: 3 days
Security: Stack overflow with the hostname.
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D15936

Make it possible to use empty user name ("-U ''") for mount_smbfs(8).
It's just like "-U guest", except that it actually works, at least
with Samba 4, which seems to return authentication failure for "-U guest".

MFC after: 1 month
Sponsored by: The FreeBSD Foundation

Completely rewrite the interface to smbdev switching from dev_clone
to cdevpriv(9). This commit changes the semantic of mount_smbfs
in userland as well, which now passes file descriptor in order to
to mount a specific filesystem istance.

Reviewed by: attilio, ed
Tested by: martymac

A new jail(8) with a configuration file, to replace the work currently done
by /etc/rc.d/jail.

Create the altix project branch. The altix project will add support
for the SGI Altix 350 to FreeBSD/ia64. The hardware used for porting
is a two-module system, consisting of a base compute module and a
CPU expansion module. SGI's NUMAFlex architecture can be an excellent
platform to test CPU affinity and NUMA-aware features in FreeBSD.

- Import the HEAD csup code which is the basis for the cvsmode work.

Allow user to override default port numbers used by communication
protocols. This is very useful for tunneled SMB connections.

MFC after: 4 weeks

Tell nls_setlocale() the very locale name from command line option,
rather than using optarg variable which would be allways NULL.

Correct argument order of kiconv_add_xlat16_cspairs().

Security:

Make smbfs capable to use 16bit char set in filenames.

PR:78110

Fix some off-by-one errors dealing with limits of server names,
usernames, workgroup names and passwords. We can now connect to
servers with 15-character NetBIOS names. (Some versions of Windows
use semi-random 15-char names by default.)

PR: 46902

Fix a typo in the -O parsing code that caused a crash when the -O option
is used without supplying "sowner:sgroup".

Obtained from: NetBSD (jdolecek)
PR: 37171

Import smbfs-1.4.4.

Import smbfs-1.4.3.

Import smbfs-1.4.1.

This is Boris Popov's SMB/CIFS file system implementation for FreeBSD.

Obtained from: Boris Popov via ftp://ftp.butya.kz/pub/smbfs/