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Issue 3581012: Upgrade from trousers 0.3.3 to 0.3.6 and from testsuite 0.2 to 0.3. (Closed) Base URL: ssh://git@gitrw.chromium.org:9222/trousers.git
Patch Set: git cl push Created 10 years, 2 months ago
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1 .\" Copyright (C) 2005 International Business Machines Corporation
2 .\"
3 .de Sh \" Subsection
4 .br
5 .if t .Sp
6 .ne 5
7 .PP
8 \fB\\$1\fR
9 .PP
10 ..
11 .de Sp \" Vertical space (when we can't use .PP)
12 .if t .sp .5v
13 .if n .sp
14 ..
15 .de Ip \" List item
16 .br
17 .ie \\n(.$>=3 .ne \\$3
18 .el .ne 3
19 .IP "\\$1" \\$2
20 ..
21 .TH "tcsd" 8 "2005-03-15" "TSS 1.1"
22 .ce 1
23 TCG Software Stack
24 .SH NAME
25 tcsd \- daemon that manages Trusted Computing resources
26 .SH "SYNOPSIS"
27 .ad l
28 .hy 0
29 .B tcsd
30 .RB [ \-f ]
31
32 .SH "DESCRIPTION"
33 .PP
34 Trousers is an open-source TCG Software Stack (TSS), released under the Common
35 Public License. Trousers aims to be compliant with the current (1.1b) and
36 upcoming (1.2) TSS specifications available from the Trusted Computing Group
37 website: http://www.trustedcomputinggroup.org.
38
39 \fBtcsd\fR is a user space daemon that should be (according to the TSS spec)
40 the only portal to the TPM device driver. At boot time, \fBtcsd\fR should
41 be started, it should open the TPM device driver and from that point on, all
42 requests to the TPM should go through the TSS stack. The \fBtcsd\fR manages TPM
43 resources and handles requests from TSP's both local and remote.
44
45 .TP
46 \fB\-f\fR
47 run the daemon in the foreground
48
49 .SH "ACCESS CONTROL"
50 .PP
51 There are two types of access control for the \fBtcsd\fR, access to the
52 daemon's socket itself and access to specific commands internal to the
53 \fBtcsd\fR. Access to the \fBtcsd\fR's port should be controlled by the system
54 administrator using firewall rules. If using iptables, the following rule
55 will allow a specific host access to the tcsd:
56
57 # iptables -A INPUT -s $IP_ADDRESS -p tcp --destination-port 30003 -j ACCEPT
58
59 Access to individual commands internal to the tcsd is configured by the
60 \fBtcsd\fR configuration file's "remote_ops" directive. Each function call
61 in the TCS API is reachable by a unique ordinal. Each labeled "remote op"
62 actually defines a set of ordinals (usually more than one) necessary to
63 accomplish the operation. So, for example, the "random" operation enables
64 the ordinals for opening and closing a context, calling TCS_StirRandom
65 and TCS_GetRandom, as well as TCS_FreeMemory. By default, connections from
66 localhost will allow any ordinals.
67
68 .SH "DATA FILES"
69 .PP
70 TSS applications have access to 2 different kinds of 'persistant' storage. 'User '
71 persistant storage has the lifetime of that of the application using it
72 and therefore is destroyed when an application exits. User PS is controlled
73 by the TSP of the application. 'System' persistent storage is controlled by
74 the TCS and stays valid across application lifetimes, \fBtcsd\fR restarts and
75 system resets. Data registered in system PS stays valid until an application
76 requests that it be removed. User PS files are by default stored as
77 /var/tpm/user.{pid} and the system PS file by default is /var/tpm/system.data.
78 The system PS file is initially created when ownership of the TPM is first
79 taken.
80
81 .SH "CONFIGURATION"
82 \fBtcsd\fR configuration is stored by default in /etc/tcsd.conf
83
84 .SH "DEBUG OUTPUT"
85 If TrouSerS has been compiled with debugging enabled, the debugging output
86 can be supressed by setting the TSS_DEBUG_OFF environment variable.
87
88 .SH "DEVICE DRIVERS"
89 .PP
90 \fBtcsd\fR is compatible with the IBM Research TPM device driver available
91 from http://www.research.ibm.com/gsal/tcpa and the TPM device driver available
92 from http://sf.net/projects/tmpdd
93
94 .SH "CONFORMING TO"
95 .PP
96 \fBtcsd\fR conforms to the Trusted Computing Group Software
97 Specification version 1.1 Golden
98
99 .SH "SEE ALSO"
100 .PP
101 \fBtcsd.conf\fR(5)
102
103 .SH "AUTHOR"
104 Kent Yoder
105
106 .SH "REPORTING BUGS"
107 Report bugs to <trousers-tech@lists.sf.net>
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