Copyright (c) 1999
Brett Lymn - blymn@baea.com.au, brett_lymn@yahoo.com.au
This code is donated to The NetBSD Foundation by the author.
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$Id: veriexecctl.8,v 1.12 2005/05/20 19:52:52 elad Exp $
.Dd April 22, 2005 .Dt VERIEXECCTL 8 .Os .Sh NAME .Nm veriexecctl .Nd load or report verified exec fingerprints .Sh SYNOPSIS .Nm .Cm fingerprints .Nm .Cm load Ar veriexec.conf .Sh DESCRIPTION The .Nm command is used to manipulate the Verified Exec feature. Verified Exec must have been configured into the booted kernel for this commaned to work. .Sh COMMANDS l -tag -width 25n t Cm load Ar veriexec.conf Load the fingerprint entries contained in .Ar veriexec.conf into the in kernel tables. This operation is only available if kern.securelevel is less than or equal to zero. Once loaded the kernel can then validate executed programs or files against the loaded fingerprints and report when fingerprints do not match. .El .Sh VERIEXEC.CONF The
a veriexec.conf file contains lines of fields (separated by one or more whitespace characters) of the form:
p .Dl path type fingerprint options
p Where .Em path is the full path to the file and .Em type is the type of fingerprint used, see above for the default list. Other fingerprints may be available depending on kernel configuration, use the .Cm fingerprints command option to extract the fingerprints supported by the currently running kernel. The .Em fingerprint field is a hexadecimal representation of the fingerprint for the file. The field .Em options contains the associated options for the file. Currently there are two valid options:
p l -tag -width INDIRECT -compact t Dv INDIRECT If this option is set then the executable cannot be invoked directly, it can only be used as an interpreter in shell scripts. t Dv FILE Indicates that the fingerprint is associated with a file, not an executable. Files have their fingerprints verified during .Xr open 2 and are automatically made read only. This option may be used to verify shared libraries have not been tampered with. .El
p There must be only one executable/fingerprint pair per line. Comments are indicated by the first character of a line being a .Sq # character. .Sh FILES l -tag -width /dev/veriexec -compact t Pa /dev/veriexec verified executable device node .El .Sh SEE ALSO .Xr veriexec 4 ,
a /usr/share/examples/veriexecctl/gen_md5 ,
a /usr/share/examples/veriexecctl/gen_rmd160 ,
a /usr/share/examples/veriexecctl/gen_sha1 .Sh HISTORY .Nm first appeared in .Nx 2.0 . .Sh NOTES .Nm requires the kernel to have been configured with the .Dv VERIFIED_EXEC option and the verifiedexec pseudo-device. .Sh BUGS There must be no whitespace in the path field of a fingerprint entry.