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freebsd-dev/sys/mips/conf/RT305X
Mark Murray d1b06863fb Huge cleanup of random(4) code. 
* GENERAL
- Update copyright.
- Make kernel options for RANDOM_YARROW and RANDOM_DUMMY. Set
  neither to ON, which means we want Fortuna
- If there is no 'device random' in the kernel, there will be NO
  random(4) device in the kernel, and the KERN_ARND sysctl will
  return nothing. With RANDOM_DUMMY there will be a random(4) that
  always blocks.
- Repair kern.arandom (KERN_ARND sysctl). The old version went
  through arc4random(9) and was a bit weird.
- Adjust arc4random stirring a bit - the existing code looks a little
  suspect.
- Fix the nasty pre- and post-read overloading by providing explictit
  functions to do these tasks.
- Redo read_random(9) so as to duplicate random(4)'s read internals.
  This makes it a first-class citizen rather than a hack.
- Move stuff out of locked regions when it does not need to be
  there.
- Trim RANDOM_DEBUG printfs. Some are excess to requirement, some
  behind boot verbose.
- Use SYSINIT to sequence the startup.
- Fix init/deinit sysctl stuff.
- Make relevant sysctls also tunables.
- Add different harvesting "styles" to allow for different requirements
  (direct, queue, fast).
- Add harvesting of FFS atime events. This needs to be checked for
  weighing down the FS code.
- Add harvesting of slab allocator events. This needs to be checked for
  weighing down the allocator code.
- Fix the random(9) manpage.
- Loadable modules are not present for now. These will be re-engineered
  when the dust settles.
- Use macros for locks.
- Fix comments.

* src/share/man/...
- Update the man pages.

* src/etc/...
- The startup/shutdown work is done in D2924.

* src/UPDATING
- Add UPDATING announcement.

* src/sys/dev/random/build.sh
- Add copyright.
- Add libz for unit tests.

* src/sys/dev/random/dummy.c
- Remove; no longer needed. Functionality incorporated into randomdev.*.

* live_entropy_sources.c live_entropy_sources.h
- Remove; content moved.
- move content to randomdev.[ch] and optimise.

* src/sys/dev/random/random_adaptors.c src/sys/dev/random/random_adaptors.h
- Remove; plugability is no longer used. Compile-time algorithm
  selection is the way to go.

* src/sys/dev/random/random_harvestq.c src/sys/dev/random/random_harvestq.h
- Add early (re)boot-time randomness caching.

* src/sys/dev/random/randomdev_soft.c src/sys/dev/random/randomdev_soft.h
- Remove; no longer needed.

* src/sys/dev/random/uint128.h
- Provide a fake uint128_t; if a real one ever arrived, we can use
  that instead. All that is needed here is N=0, N++, N==0, and some
  localised trickery is used to manufacture a 128-bit 0ULLL.

* src/sys/dev/random/unit_test.c src/sys/dev/random/unit_test.h
- Improve unit tests; previously the testing human needed clairvoyance;
  now the test will do a basic check of compressibility. Clairvoyant
  talent is still a good idea.
- This is still a long way off a proper unit test.

* src/sys/dev/random/fortuna.c src/sys/dev/random/fortuna.h
- Improve messy union to just uint128_t.
- Remove unneeded 'static struct fortuna_start_cache'.
- Tighten up up arithmetic.
- Provide a method to allow eternal junk to be introduced; harden
  it against blatant by compress/hashing.
- Assert that locks are held correctly.
- Fix the nasty pre- and post-read overloading by providing explictit
  functions to do these tasks.
- Turn into self-sufficient module (no longer requires randomdev_soft.[ch])

* src/sys/dev/random/yarrow.c src/sys/dev/random/yarrow.h
- Improve messy union to just uint128_t.
- Remove unneeded 'staic struct start_cache'.
- Tighten up up arithmetic.
- Provide a method to allow eternal junk to be introduced; harden
  it against blatant by compress/hashing.
- Assert that locks are held correctly.
- Fix the nasty pre- and post-read overloading by providing explictit
  functions to do these tasks.
- Turn into self-sufficient module (no longer requires randomdev_soft.[ch])
- Fix some magic numbers elsewhere used as FAST and SLOW.

Differential Revision: https://reviews.freebsd.org/D2025
Reviewed by: vsevolod,delphij,rwatson,trasz,jmg
Approved by: so (delphij)
2015-06-30 17:00:45 +00:00

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# RT305X -- Kernel configuration file for FreeBSD/mips for Ralink RT305xF systems
#
# For more information on this file, please read the handbook section on
# Kernel Configuration Files:
#
# http://www.FreeBSD.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig-config.html
#
# The handbook is also available locally in /usr/share/doc/handbook
# if you've installed the doc distribution, otherwise always see the
# FreeBSD World Wide Web server (http://www.FreeBSD.org/) for the
# latest information.
#
# An exhaustive list of options and more detailed explanations of the
# device lines is also present in the ../../conf/NOTES and NOTES files.
# If you are in doubt as to the purpose or necessity of a line, check first
# in NOTES.
#
# $FreeBSD$
ident RT305X
machine mips mipsel
makeoptions MIPS_LITTLE_ENDIAN=defined
makeoptions KERNLOADADDR=0x80001000
# Don't build any modules yet.
makeoptions MODULES_OVERRIDE="wlan_xauth wlan_wep wlan_tkip wlan_acl wlan_amrr wlan_ccmp wlan_rssadapt if_bridge bridgestp msdosfs md ipfw dummynet libalias geom/geom_label ufs usb/uplcom usb/u3g usb/umodem usb/umass usb/ucom cam zlib"
makeoptions RT3052F
include "../rt305x/std.rt305x"
hints "RT305X.hints" #Default places to look for devices.
#makeoptions DEBUG=-g #Build kernel with gdb(1) debug symbols
# Debugging for use in -current
#options DEADLKRES #Enable the deadlock resolver
#options INVARIANTS #Enable calls of extra sanity checking
#options INVARIANT_SUPPORT #Extra sanity checks of internal structures, required by INVARIANTS
#options WITNESS #Enable checks to detect deadlocks and cycles
#options WITNESS_SKIPSPIN #Don't run witness on spinlocks for speed
#options DIAGNOSTIC
#options DEBUG_LOCKS
#options DEBUG_VFS_LOCKS
#options GDB
options DDB
options KDB
options SCHED_ULE
#options SCHED_4BSD #4BSD scheduler
#options COMPAT_43
options INET #InterNETworking
options NFSCL #Network Filesystem Client
options NFS_ROOT #NFS usable as /, requires NFSCL
options PSEUDOFS #Pseudo-filesystem framework
#options _KPOSIX_PRIORITY_SCHEDULING #Posix P1003_1B real-time extensions
options BOOTP
#options BOOTP_NFSROOT
options BOOTP_NFSV3
options BOOTP_WIRED_TO=rt0
options BOOTP_COMPAT
options CD9660 # ISO 9660 Filesystem
options ROOTDEVNAME=\"cd9660:/dev/map/rootfs.uncompress\"
options TMPFS # TMP Memory Filesystem
#options FFS #Berkeley Fast Filesystem
#options SOFTUPDATES #Enable FFS soft updates support
#options UFS_ACL #Support for access control lists
#options UFS_DIRHASH #Improve performance on big directories
#options ROOTDEVNAME=\"nfs:10.0.0.1:/mnt/bsd\"
# Options for making kernel less hangry
makeoptions INLINE_LIMIT=1024
options MAXUSERS=3
options MAXFILES=512
options NSFBUFS=256
options SHMALL=128
options MSGBUF_SIZE=65536
# Options for making kernel smallest
options NO_SYSCTL_DESCR # No description string of sysctl
#options NO_FFS_SNAPSHOT # Disable Snapshot supporting
options SCSI_NO_SENSE_STRINGS
options SCSI_NO_OP_STRINGS
options RWLOCK_NOINLINE
options SX_NOINLINE
options NO_SWAPPING
options MROUTING # Multicast routing
options IPFIREWALL_DEFAULT_TO_ACCEPT
device random
device loop
# RT3050F, RT3052F have only pseudo PHYs, so mii not required
device rt
device ether
device bpf # Berkeley packet filter
device vlan
#device lagg
#device if_bridge
device uart
nodevice uart_ns8250
device tun # Packet tunnel.
device wlan
device gpio
device gpioled
device cfi # Detect Flash memmory
device cfid
device nvram2env
device usb
#device dotg # DWC like USB OTG Controller driver
#device u3g
#device umodem
#device uplcom
#device umass
#device da
#device pass
#device scbus
options SCSI_DELAY=1000 # Delay (in ms) before probing SCSI
#options USB_EHCI_BIG_ENDIAN_DESC # handle big-endian byte order
#options USB_DEBUG
#options USB_REQ_DEBUG
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