xref: /illumos-gate/usr/src/cmd/smbsrv/fksmbd/README (revision 0250c53ad267726f2438e3c6556199a0bbf588a2)
1
2#
3# This file and its contents are supplied under the terms of the
4# Common Development and Distribution License ("CDDL"), version 1.0.
5# You may only use this file in accordance with the terms of version
6# 1.0 of the CDDL.
7#
8# A full copy of the text of the CDDL should have accompanied this
9# source.  A copy of the CDDL is also available via the Internet at
10# http://www.illumos.org/license/CDDL.
11#
12
13#
14# Copyright 2013 Nexenta Systems, Inc.  All rights reserved.
15#
16
17This directory builds a program linking all of the SMB server code
18into a user-level process.  The result is not a fully functional
19SMB server but is very useful for some kinds of development work.
20
21The architecture of this roughly parallels the in-kernel version,
22where the fksmbd program corresponds to the real smbd, the library
23libfksmbsrv corresponds to the smbsrv kernel module, and all the
24required kernel interfaces are simulated in libfakekernel.
25
26Just as with the kernel code, there are mdb modules that know
27how to walk data structures in libfksmbsrv, etc.
28
29For debugging, etc. it's easiest to run this as a normal user,
30i.e. yourself (not root); but before you can do that, there are
31some prerequisites to take care of:
32
33  a: Install ../bind-helper in /usr/lib/smbsrv/.
34     It needs to be either setuid root (easiest) or added to
35     the exec_attr as described in the top of bind-helper.c
36     (This must be in /usr/lib/smbsrv, not the proto area.)
37
38  b: Setup an SMB account for guest, i.e.
39     Add pam_smb_passwd.so.1 to pam.conf if not already there
40     (other password required pam_smb_passwd.so.1 nowarn)
41     % useradd guest
42     % smbadm enable-user guest
43     % passwd guest    (sets the SMB p/w hash too)
44     Make sure guest shows in /var/smb/smbpasswd
45
46  c: chown/chmod the directories: /var/smb /var/run/smb
47     to yourself, mode 755.  Reboot will chown these
48     back to root, so repeat this after a reboot.
49
50Now you can run fksmbd from the proto area using this script:
51  ./Run.sh -df
52
53You can also run it under dbx (see the .dbxrc file).
54To run it under mdb (with mdb modules build here):
55  mdb -L $ROOT/usr/lib/mdb/proc:/usr/lib/mdb/proc ...
56where ... is one of: fksmbd, core.nnn, -p $PID
57
58There are also some dtrace scripts in here, and in ../dtrace
59for watching either all activity or only selected areas.
60Run these like:  dtrace -s Watch-all.d -p $PID -o output
61
62These two (from over in ../dtrace) also work with fksmbd:
63	dtrace -s smbd-authsvc.d -p `pgrep fksmbd`  -o output
64	dtrace -s smbd-pipesvc.d -p `pgrep fksmbd`  -o output
65
66
67Here are a couple simple, handy tests you can try:
68
69smbclient -L localhost -U guest%guest
70
71smbclient //localhost/test -U guest%guest -c dir
72
73smbtorture //localhost/test -U guest%guest base
74