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'\" te .\" Copyright (C) 2005 International Business Machines Corporation .\" .de Sh \" Subsection .br .if t .Sp .ne 5 .PP \fB\\$1\fR .PP .. .de Sp \" Vertical space (when we can't use .PP) .if t .sp .5v .if n .sp .. .de Ip \" List item .br .ie \\n(.$>=3 .ne \\$3 .el .ne 3 .IP "\\$1" \\$2 .. .TH "tcsd" 8 "2005-03-15" "TSS 1.1" .ce 1 TCG Software Stack .SH NAME tcsd \- daemon that manages Trusted Computing resources .SH "SYNOPSIS" .ad l .hy 0 .B tcsd .RB [ \-f ] .RB [ \-e ] .RB [ \-c\ <configfile>\ ] .RB [ \-h ] .SH "DESCRIPTION" .PP Trousers is an open-source TCG Software Stack (TSS), released under the BSD License. Trousers aims to be compliant with the current (1.1b) and upcoming (1.2) TSS specifications available from the Trusted Computing Group website: http://www.trustedcomputinggroup.org. \fBtcsd\fR is a user space daemon that should be (according to the TSS spec) the only portal to the TPM device driver. At boot time, \fBtcsd\fR should be started, it should open the TPM device driver and from that point on, all requests to the TPM should go through the TSS stack. The \fBtcsd\fR manages TPM resources and handles requests from TSP's both local and remote. .TP \fB\-f,\ \-\-foreground\fR run the daemon in the foreground .TP \fB\-e\fR attempt to connect to software TPMs over TCP .TP \fB\-c,\ \-\-config <configfile>\fR use the provided configuration file rather than the default configuration file .TP \fB\-h,\ \-\-help\fR display help message .SH "ACCESS CONTROL" .PP There are two types of access control for the \fBtcsd\fR, access to the daemon's socket itself and access to specific commands internal to the \fBtcsd\fR. Access to the \fBtcsd\fR's port should be controlled by the system administrator using firewall rules. If port = 0 in /etc/security/tcsd.conf, \fBtcsd\R uses a UNIX Domain socket. Otherwise, \fBtcsd\fR uses a TCP port. By default the TCP port, when enabled, is accessible only from localhost, unless "remote_ops" in tcsd.conf is not empty. Access to individual commands internal to the tcsd is configured by the \fBtcsd\fR configuration file's "remote_ops" directive. Each function call in the TCS API is reachable by a unique ordinal. Each labeled "remote op" actually defines a set of ordinals (usually more than one) necessary to accomplish the operation. So, for example, the "random" operation enables the ordinals for opening and closing a context, calling TCS_StirRandom and TCS_GetRandom, as well as TCS_FreeMemory. By default, connections from localhost will allow any ordinals. .SH "DATA FILES" .PP TSS applications have access to 2 different kinds of 'persistant' storage. 'User' persistant storage has the lifetime of that of the application using it and therefore is destroyed when an application exits. User PS is controlled by the TSP of the application. 'System' persistent storage is controlled by the TCS and stays valid across application lifetimes, \fBtcsd\fR restarts and system resets. Data registered in system PS stays valid until an application requests that it be removed. User PS files are by default stored as /var/user/$USERNAME/tpm/userps/user.data and the system PS file by default is /var/tpm/system/system.data. The system PS file is initially created when ownership of the TPM is first taken. .PP \fB/var/tpm/system/system.data\fR .ad .RS 4n Contains the system PS (persistent storage) data controlled by the TCS. By default, the SRK key is installed in PS and does not require owner authorization to use. If the TPM has previously been provisioned and owner-auth is required to load the SRK, then the /var/tpm/system/system.data.auth file should be moved to /var/tpm/system/system.data before starting the TCS (See NOTES). .RE .sp .PP \fB/var/tpm/system/system.data.auth\fR .ad .RS 4n This is the default PS data file to use if the TPM has been previously configured to require owner-auth to access the SRK. Copy this file to /var/tpm/system/system.data prior to starting the TCS if owner-auth is needed, otherwise this file can be ignored. .RE .SH "CONFIGURATION" \fBtcsd\fR configuration is stored by default in /etc/security/tcsd.conf .SH "DEBUG OUTPUT" If TrouSerS has been compiled with debugging enabled, the debugging output can be supressed by setting the TSS_DEBUG_OFF environment variable. .SH "DEVICE DRIVERS" .PP \fBtcsd\fR is compatible with the IBM Research TPM device driver available from http://ibmswtpm.sourceforge.net/ and the TPM device driver available from http://sf.net/projects/tpmdd, which is also available in the upstream Linux kernel and many Linux distros. It is also compatible with the TPM device driver for Oracle Solaris which is available in package driver/crypto/tpm. .SH "CONFORMING TO" .PP \fBtcsd\fR conforms to the Trusted Computing Group Software Specification version 1.1 Golden .\" Oracle has added the ARC stability level to this manual page .SH ATTRIBUTES See .BR attributes (7) for descriptions of the following attributes: .sp .TS box; cbp-1 | cbp-1 l | l . ATTRIBUTE TYPE ATTRIBUTE VALUE = Availability library/security/trousers = Stability Uncommitted .TE .PP .SH "SEE ALSO" .PP \fBtcsd.conf\fR(5), \fBsvcadm\fR(8), \fBsmf\fR(7) .SH "NOTES" .sp .LP The \fBtcsd\fR service is managed by the service management facility, \fBsmf\fR(7), under the service identifier: .sp .in +2 .nf svc:/application/security/tcsd:default .fi .in -2 .sp .LP Administrative actions on this service, such as enabling, disabling, or requesting restart, can be performed using \fBsvcadm\fR(8). The service's status can be queried using the \fBsvcs\fR(1) command. .\" Oracle has added source availability information to this manual page Source code for open source software components in Oracle Solaris can be found at https://www.oracle.com/downloads/opensource/solaris-source-code-downloads.html. This software was built from source available at https://github.com/oracle/solaris-userland. The original community source was downloaded from https://sourceforge.net/projects/trousers/files/trousers/0.3.15/trousers-0.3.15.tar.gz. Further information about this software can be found on the open source community website at http://trousers.sourceforge.net/. .SH "AUTHOR" Kent Yoder .SH "REPORTING BUGS" Report bugs to <trousers-tech@lists.sf.net>