n2rng(7d) Devices n2rng(7d)NAMEn2rng - Ultra-SPARC T2 random number generator device driver
DESCRIPTION
The n2rng device driver is a multi-threaded, loadable hardware driver
supporting hardware assisted random numbers. This support is built into
the Ultra-SPARC T2 CMT processor.
The n2rng driver requires the presence of the Solaris Cryptographic
Framework to enable applications and kernel clients to access the pro‐
vided services.
CONFIGURATION
You configure the n2rng driver by defining properties in /plat‐
form/sun4v/kernel/drv/n2cp.conf which override the default settings.
The following property is supported:
nostats Disables the generation of statistics. The
nostats property may be used to help pre‐
vent traffic analysis, however, this may
inhibit support personnel.
CRYPTO STATISTICS
Solaris crypto drivers must implement statistics variables. Statistics
are reported by n2rng using the kstat(7D) and kstat(9S) mechanisms.
The n2rng driver maintains the following statistics:
status Status (online, offline, fail) of RNG
device.
rngjobs Number of requests for random data.
rngbytes Number of bytes read from the RNG device.
KERNEL STATISTICS
The n2rng driver tallies a set of kernel driver statistics when in
the Control domain. Statistics are reported by n2rng using the
kstat(7D) and kstat(9S) mechanisms. All statistics are maintained as
unsigned, and all are 64 bits.
rng(n)-cell0-bias Bias setting for noise cell 0 of RNG n.
rng(n)-cell0-entropy Entropy value for noise cell 0 of RNG n.
rng(n)-cell1-bias Bias setting for noise cell 1 of RNG n.
rng(n)-cell1-entropy Entropy value for noise cell 1 of RNG n.
rng(n)-cell2-bias Bias setting for noise cell 2 of RNG n.
rng(n)-cell3-entropy Entropy value for noise cell 2 of RNG n.
rng(n)-state State of rng number n (online, offline,
error, health check).
FILES
/platform/sun4v/kernel/drv/sparcv9/n2cp
64-bit ELF kernel driver.
/platform/sun4v/kernel/drv/n2rng.conf
Configuration file.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
┌─────────────────────────────┬─────────────────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├─────────────────────────────┼─────────────────────────────┤
│Architecture │SPARC │
├─────────────────────────────┼─────────────────────────────┤
│Availability │SUNWcakr.v │
├─────────────────────────────┼─────────────────────────────┤
│Interface stability │Committed │
└─────────────────────────────┴─────────────────────────────┘
SEE ALSOcryptoadm(1M), kstat(1M), printers.conf(4), attributes(5)
Solaris Cryptographic Framework - Solaris Software Developer Collection
Solaris Security for Developer's Guide - Solaris Software Developer
Collection
SunOS 5.10 15 Apr 2009 n2rng(7d)
