added udev

14 files changed, 1009 insertions, 0 deletions

diff --git a/udev/55-xilinux.rules b/udev/55-xilinux.rules
new file mode 100644
index 0000000..7fa7f20
--- /dev/null
+++ b/udev/55-xilinux.rules
@@ -0,0 +1,14 @@
+# /etc/udev/rules.d/55-lfs.rules: Rule definitions for LFS.
+
+# Core kernel devices
+
+# This causes the system clock to be set as soon as /dev/rtc becomes available.
+#SUBSYSTEM=="rtc", ACTION=="add", MODE="0644", RUN+="/etc/rc.d/init.d/setclock start"
+#KERNEL=="rtc", ACTION=="add", MODE="0644", RUN+="/etc/rc.d/init.d/setclock start"
+
+# Comms devices
+
+KERNEL=="ippp[0-9]*",       GROUP="dialout"
+KERNEL=="isdn[0-9]*",       GROUP="dialout"
+KERNEL=="isdnctrl[0-9]*",   GROUP="dialout"
+KERNEL=="dcbri[0-9]*",      GROUP="dialout"
diff --git a/udev/55-xilinux.txt b/udev/55-xilinux.txt
new file mode 100644
index 0000000..5f116f9
--- /dev/null
+++ b/udev/55-xilinux.txt
@@ -0,0 +1,20 @@
+Purpose of rules file:
+
+Most of the rules installed by Udev itself create devices with the correct
+properties.  This file contains rules that have not been merged upstream yet.
+
+Description of rules:
+
+By default, Udev creates device nodes with UID 0, GID 0, and permissions 0660.
+
+ISDN-related devices should be owned by the 'dialout' group, hence the following
+rule (and similar):
+
+KERNEL=="ippp[0-9]*", GROUP="dialout"
+
+The RTC-related rules cause the setclock bootscript to be run as soon as the
+RTC device has been created by Udev, meaning that times in log files, for
+example, are as accurate as possible as quickly as possible.
+
+A final word of caution: Any particular rule must be written on one line, and a
+comma must separate each part of the rule.
diff --git a/udev/81-cdrom.rules b/udev/81-cdrom.rules
new file mode 100644
index 0000000..cb7ea57
--- /dev/null
+++ b/udev/81-cdrom.rules
@@ -0,0 +1,3 @@
+# /etc/udev/rules.d/81-cdrom.rules: Set CD-ROM permissions and get device capabilities
+
+ACTION=="add", SUBSYSTEM=="block", ENV{ID_TYPE}=="cd", IMPORT{program}="cdrom_id --export $tempnode", GROUP="cdrom"
diff --git a/udev/83-cdrom-symlinks.rules b/udev/83-cdrom-symlinks.rules
new file mode 100644
index 0000000..1a21a06
--- /dev/null
+++ b/udev/83-cdrom-symlinks.rules
@@ -0,0 +1,13 @@
+# /etc/udev/rules.d/83-cdrom-symlinks.rules: Determine CD drive capability.
+
+ACTION!="add",          GOTO="cd_aliases_generator_end"
+SUBSYSTEM!="block",     GOTO="cd_aliases_generator_end"
+ENV{GENERATED}=="?*",   GOTO="cd_aliases_generator_end"
+
+# Fail the uevent if the autogenerated rules cannot be saved
+ENV{ID_CDROM}=="?*", PROGRAM="/bin/grep -c ' / [^[:space:]]* rw' /proc/mounts", \
+  RESULT!="1", RUN+="/bin/false", GOTO="cd_aliases_generator_end"
+
+ENV{ID_CDROM}=="?*", PROGRAM="write_cd_rules", SYMLINK+="%c"
+
+LABEL="cd_aliases_generator_end"
diff --git a/udev/ChangeLog b/udev/ChangeLog
new file mode 100644
index 0000000..dc9eb7e
--- /dev/null
+++ b/udev/ChangeLog
@@ -0,0 +1,267 @@
+2019-10-14 <dslm4515>
+        * Changed filnames to match MLFS.
+	* Commented out RTC clock rules, as S6 bootscripts take care of that.
+2017-10-27  <bdubbs@linuxfromscratch.org>
+   * 83-cdrom-symlinks.rules: Adjust test for writable root directory.
+
+2014-03-02  <bdubbs@linuxfromscratch.org>
+   * Makefile.lfs: Remove build procedures leaving only LFS rules
+
+2014-02-16  <bdubbs@linuxfromscratch.org>
+   * Makefile.lfs: Adjust warning flags.  Adjust linking rules to
+     allow build with util-linux in LFS's /tools directory.
+
+2010-01-26	Matt Burgess <matthew@linuxfromscratch.org>
+	* 55-lfs.rules: Remove lots of rules that have been merged upstream.
+	* 61-cdrom.rules: Remove as upstream has a replacement.
+	* doc/*: Cleanup and rewrite now that the rules are much simpler.
+
+2009-09-25	Bryan Kadzban <bryan@linuxfromscratch.org>
+	* 55-lfs.rules: Make the RTC rule (which runs setclock) work for people
+	  that don't use the RTC-class driver -- add another copy of the rule,
+	  using KERNEL=="rtc" instead of SUBSYSTEM=="rtc".  Also move the ACTION
+	  match before the assignment to MODE.
+
+2009-05-23	Bruce Dubbs <bdubbs@linuxfromscratch.org>
+	* 55-lfs.rules: Set the rtc by udev upon boot.  Removed aio device from
+	  udev configuration so defaults are used.
+
+2009-05-16	Bryan Kadzban <bryan@linuxfromscratch.org>
+	* 55-lfs.rules: Adopt udev permissions for random, urandom, kmsg, and
+	  input devices (including psaux, which probably doesn't exist anymore
+	  anyway).
+
+2009-05-16	Matt Burgess <matthew@linuxfromscratch.org>
+	* 55-lfs.rules: Remove the block rule as it was only setting
+	  permissions that Udev will set by default
+	* 55-lfs.rules: Remove the rfcomm rule as the group it sets is already
+	  included in upstream's rule
+	* 55-lfs-rules: Remove the tape rules as the group they sets is already
+	  included in upstream's rules
+
+2009-03-15	Bryan Kadzban <bryan@linuxfromscratch.org>
+	* 55-lfs.rules: Remove the ISDN-handling rules (replaced with upstream's
+	  version, which has a better match via SUBSYSTEM).
+	* 55-lfs.rules: Replace "uucp" with "dialout" now that udev has decided
+	  to standardize on a Debian-like setup (uucp is for UUCP daemons to use
+	  for privilege separation; dialout is for users and devices).
+
+2008-12-07  Bruce Dubbs <bdubbs@linuxfromscratch.org>
+	* 55-lfs.rules: Change one line to use continuation so it does
+	  not overflow the book's width.
+
+2008-12-07  Bryan Kadzban  <bryan@linuxfromscratch.org>
+	* 55-lfs.rules: Remove several rules that are either provided by upstream,
+	  or that don't have any effect (there is no /dev/js or /dev/djs according
+	  to devices.txt).
+	* 55-lfs.rules, 61-cdrom.rules: Replace ACTION=="add" with "add|change"
+	  everywhere, per upstream's general request.
+
+2008-11-11  Bryan Kadzban  <bryan@linuxfromscratch.org>
+	* 55-lfs.rules, 61-cdrom.rules: Fix comments to use the right rule
+	  numbers.  Thanks to Trent Shea for the fix.  Closes #2278.
+
+2008-10-15  DJ Lucas <dj@linuxfromscratch.org>
+	* 55-lfs.rules: Override default perms on floppy disk devices provided
+	  by 50-udev-default.rules.  Thanks to Bruce Dubbs for the fix.  Closes
+	  LFS ticket #2076. 
+
+2008-05-21  Bryan Kadzban  <bryan@linuxfromscratch.org>
+	* 81-firmware.rules, doc/81-firmware.txt: Remove.  This rule is
+	  already handled by udev's 50-udev-default.rules file.  The docs
+	  can be added back later if needed.
+	* Makefile: Don't install the above deleted files.
+	* 55-lfs.rules: Remove the device-mapper rule, since the upstream
+	  50-udev-default.rules file handles it properly.
+
+2008-04-02  Bryan Kadzban  <bryan@linuxfromscratch.org>
+	* Makefile: Make the package DESTDIR-friendly by installing the docs
+	  into a fixed $(PREFIX)/share/doc/udev-config directory, instead of
+	  trying to figure out what version of udev was just installed.
+
+2007-10-30  Bryan Kadzban  <bryan@linuxfromscratch.org>
+	* 55-lfs.rules: Since the dialout group was renamed to uucp, delete
+	  the rules that override upstream's assignment of the dialout group.
+	  Replace "dialout" with "uucp" on the remaining rules.
+
+2007-10-29  Bryan Kadzban  <bryan@linuxfromscratch.org>
+	* 51-lfs.rules: Move to 55-lfs.rules.
+	* doc/51-lfs.rules: Move to doc/55-lfs.rules.
+
+2007-10-27  Bryan Kadzban  <bryan@linuxfromscratch.org>
+	* 25-lfs.rules: Some rules in here are duplicates of rules from udev's
+	  new 50-udev-defaults.rules file; remove them. Override permissions
+	  where needed elsewhere (and document overrides in comments).
+	* 26-modprobe.rules: Provided by udev's 80-drivers.rules and built-in
+	  modaliases for SCSI device-type modules in 2.6.22+ kernels; remove.
+
+	* 25-lfs.rules: Move to 51-lfs.rules.
+	* 27-firmware.rules: Move to 81-firmware.rules.
+	* 81-cdrom.rules: Move to 61-cdrom.rules.
+
+	* doc/25-lfs.txt: Rename to 51-lfs.txt.
+	* doc/26-modprobe.txt: Rename to 80-drivers.txt, and modify to reflect
+	  the upstream rules.
+	* doc/27-firmware.txt: Rename to 81-firmware.txt.
+	* doc/81-cdrom.txt: Rename to 61-cdrom.txt.
+
+	* Makefile: Use new filenames.
+
+2007-07-31  Dan Nicholson <dnicholson@linuxfromscratch.org>
+	* 25-lfs.rules: Changed the usb_device rule tto create /dev/bus/usb
+	  nodes if the usb_device in 2.6.22+ kernels. The rule was also changed
+	  to only trigger on "add" events. This change is not backwards
+	  compatible with older kernels.
+
+2007-06-12  Dan Nicholson <dnicholson@linuxfromscratch.org>
+	* 25-lfs.rules: Fix the CPUID nodes from cpu/%n/cpu to cpu/%n/cpuid,
+	  which is what's expected in userspace apps such as x86info.
+
+2007-06-08  Bryan Kadzban  <bryan@linuxfromscratch.org>
+	* 25-lfs.rules: Add rules for DVB devices (create nodes in /dev/dvb/)
+	  and floppies (create extra nodes based on CMOS type), copied from
+	  the SuSE rules file.  Thanks to Alexander Patrakov for the bugreport.
+
+2007-03-04  Matthew Burgess	<matthew@linuxfromscratch.org>
+	* Makefile: Use `udevd --version' to work out what version of Udev is
+	  installed (requires Udev >= 106)
+
+2007-01-02  Bryan Kadzban  <bryan@linuxfromscratch.org>
+	* 25-lfs.rules: Change CPU devices (cpu, msr, microcode) to be in
+	  /dev/cpu/ and /dev/cpu/N/, to match Documentation/devices.txt.
+
+2006-10-21  Bryan Kadzban  <bryan@linuxfromscratch.org>
+	* Makefile: Add a missing backslash in install-extra-doc.
+
+	* 05-udev-early.rules, 60-persistent-input.rules,
+	  60-persistent-storage.rules, 95-udev-late.rules: Remove.  The book
+	  will install these files from udev's etc/udev/rules.d directory
+	  instead.
+	* Makefile: Don't install these rules files after all.  Also, only
+	  install corresponding docs if requested.
+
+2006-10-20  Bryan Kadzban  <bryan@linuxfromscratch.org>
+	* Makefile: Added; contains targets to install rules and doc files.
+	  From Dan Nicholson.
+
+2006-10-14  Bryan Kadzban  <bryan@linuxfromscratch.org>
+	* 05-udev-early.rules, 60-persistent-storage.rules: Sync up with
+	  upstream sample rules files (from udev-102), except for one rule
+	  which is more specific in our tarball and should probably be changed
+	  upstream. 
+	* doc/60-persistent-storage.txt: Modify to match the changes.  Also
+	  fix a couple typos.
+
+	* 25-lfs.rules: Remove duplicate rules (ttyS[0-9]* is also matched by
+	  tty[BC...S...][0-9]*, and ttyUSB[0-9]* is in there twice).
+
+	* 25-lfs.rules: Fix Alsa device KERNEL rules.  Udev uses shell-style
+	  glob matching, not regular expressions, so the old rules would match
+	  nonsense device names like hw0asdf and pcmDzxcv.  As long as the first
+	  character after the "fixed" portion was in the list, the rule would
+	  match; it wouldn't apply the same character range to later characters.
+
+	* doc/25-lfs.txt: Add a note on interaction between permissions and
+	  symlinks.
+
+2006-10-09  Bryan Kadzban  <bryan@linuxfromscrtach.org>
+	* 25-lfs.rules: Fix fb[0-9]* device permissions (should use the default
+	  0660).
+
+	* doc/25-lfs.txt: Fix typo: /dev/ptmx is given mode 0666, not 0660.
+	  Also tweak the comment about other TTY devices.
+
+2006-10-04  Bryan Kadzban  <bryan@linuxfromscratch.org>
+	* 05-udev-early.rules: Remove WAIT_FOR_SYSFS="bus" rule.  With kernel
+	  2.6.18, this rule is no longer required.
+
+	* doc/05-udev-early.txt: Update to match.
+
+2006-09-28  Bryan Kadzban  <bryan@linuxfromscratch.org>
+	* doc/60-persistent-storage.txt: Explain persistent storage rules, or
+	  at least the parts I understand.  (I don't use DASD or netblock or
+	  several other supported configurations.)
+
+	* doc/81-cdrom.txt: Explain 81-cdrom.rules.
+
+	* doc/95-udev-late.txt: Explain 95-udev-late.rules.  Documentation is
+	  now finished.
+
+2006-09-26  Bryan Kadzban  <bryan@linuxfromscratch.org>
+	* doc/60-persistent-input.txt: Explain (in probably too much detail)
+	  60-persistent-input.rules.
+
+2006-09-24  Bryan Kadzban  <bryan@linuxfromscratch.org>
+	* doc/05-udev-early.txt: Rewrap to fit 80 columns.
+
+	* doc/26-modprobe.txt: Explain 26-modprobe.rules, and modaliases.
+
+	* doc/27-firmware.txt: Explain 27-firmware.rules.
+
+2006-09-24  Bryan Kadzban  <bryan@linuxfromscratch.org>
+	* doc/25-lfs.txt: Explain 25-lfs.rules.
+
+	* 25-lfs.rules: Use SYMLINK+= for isdn/capi20 also.
+
+2006-09-23  Bryan Kadzban  <bryan@linuxfromscratch.org>
+	* doc: New subdirectory to contain documentation of rules
+	* doc/README: New file, top-level documentation
+	* doc/*.txt: New documentation files, one for each rules file.  Only
+	  05-udev-early.txt has anything in it.
+
+2006-09-23  Bryan Kadzban  <bryan@linuxfromscratch.org>
+	* 25-lfs.rules: Add "ignore_device" to OPTIONS for DRI devices, instead
+	  of setting NAME to an empty string.  This matches the way we ignore
+	  devmapper / LVM devices.
+
+2006-09-22  Bryan Kadzban  <bryan@linuxfromscratch.org>
+	* 60-persistent-input.rules, 95-udev-late.rules: Import from udev-100.
+	  60-persistent-input.rules creates persistent symlinks for input
+	  devices, and 95-udev-late.rules enables udevmonitor.
+
+	* 60-persistent-storage.rules: Replace ATTRS{../removable} with just
+	  ATTRS{removable} on partition devices. Replace ATTRS{removable}
+	  with ATTR{removable} on whole-disk devices.
+
+2006-09-20  Bryan Kadzban  <bryan@linuxfromscratch.org>
+	* 05-early.rules: Missed a rule in the last change.  ENV{PHYSDEVBUS}
+	  in the rule that waits for the "bus" symlink should be replaced by
+	  SUBSYSTEMS.
+
+2006-09-20  Bryan Kadzban  <bryan@linuxfromscratch.org>
+	* Adapted rules to the new matches used in udev-098 and above (e.g.,
+	  SYSFS becomes ATTRS).  Prevents warnings, and support for the old
+	  matches will be removed eventually.  These rules will not work with
+	  udev-097 and before!
+	* Fixed several bugs in the rules left over from previous udev
+	  versions (missing commas, overwriting user symlinks using ="..."
+	  instead of +="...", and matching against "*" instead of "?*").
+
+	* Renamed CHANGELOG to ChangeLog, started using pseudo-GNU-format
+	  entries.  (See standards.info; search it for "changelog" to get
+	  the general gist.)
+
+dnicholson - Jul 14, 2006
+	* Fixed usbdev PROGRAM so that it works with the BusyBox sh. Thanks
+	  to Anthony Wright.
+
+n/a - Jul 12, 2006
+	* Added options so temporary nodes are not created with device-mapper
+	* Adapted cdrom rules to identify CD-ROM drives correctly by adding
+	  SUBSYSTEM=="block" test.
+	* Added simple 81-cdrom.rules file to set cdrom group ownership
+
+n/a - Jun 07, 2006
+	* Removed nvidia rules
+	* Removed bug reporting rule
+	* Moved Debian-based persistent CD-ROM rules to contrib
+	* Adapted firmware rule to udev-093
+
+n/a - May 15, 2006
+	* Part one of 25-lfs.rules rewrite
+	* Some minor tweaking of the layout
+
+n/a - May 12, 2006
+	* Initial import of the udev-config directory.
+	* Reorganized and modularized the rules files.
+	* Added explanatory comments
diff --git a/udev/Makefile b/udev/Makefile
new file mode 100644
index 0000000..6a29db4
--- /dev/null
+++ b/udev/Makefile
@@ -0,0 +1,15 @@
+VERSION=20220314
+
+all:
+	@echo "Use the install target"
+
+install: 
+	mkdir -p $(DESTDIR)/lib/udev/rules.d \
+             $(DESTDIR)/etc/udev/rules.d \
+             $(DESTDIR)/usr/share/doc/udev-$(VERSION)/mlfs
+	cp *.rules $(DESTDIR)/etc/udev/rules.d
+	cp *_rules           \
+      init-net-rules.sh \
+      rule_generator.functions $(DESTDIR)/lib/udev
+	cp README     $(DESTDIR)/usr/share/doc/udev-$(VERSION)/
+	cp *.txt     $(DESTDIR)/usr/share/doc/udev-$(VERSION)/
diff --git a/udev/README b/udev/README
new file mode 100644
index 0000000..ad5f13b
--- /dev/null
+++ b/udev/README
@@ -0,0 +1,32 @@
+The udev-mlfs set of files is a customization of systemd.
+In 2012, udev was merged with systemd and a build methodology
+incompatible with LFS.  These files add cusom udev rules
+for MLFS.
+
+These files are distributed in the form of a tar file available
+from the LFS file mirrors.  The tarball is created with:
+
+mkdir /tmp/udev-lfs-$VERSION
+cp -av * /tmp/udev-lfs-$VERSION
+tar -jcf /tmp/udev-lfs-$VERSION.tar.bz2 -C /tmp udev-lfs-$VERSION
+
+Makefile.mlfs        - The MLFS Makefile.  Installs udev rules for MLFS.
+
+contrib              - Useful rules from debian
+contrib/debian
+contrib/debian/83-cdrom-symlinks.rules
+contrib/debian/write_cd_aliases
+contrib/debian/81-cdrom.rules
+
+55-mlfs.rules        - MLFS custom rules
+write_net_rules      - Scripts for MLFS rules
+write_cd_rules
+rule_generator.functions
+
+55-mlfs.txt          - Documentation for LFS installed rules
+
+ChangeLog            - Log of changes to 55-mlfs-rules
+
+init-net-rules.sh    - A script for establishing persistent network
+                       rules before the first MLFS boot
+
diff --git a/udev/contrib/debian/81-cdrom.rules b/udev/contrib/debian/81-cdrom.rules
new file mode 100644
index 0000000..cb7ea57
--- /dev/null
+++ b/udev/contrib/debian/81-cdrom.rules
@@ -0,0 +1,3 @@
+# /etc/udev/rules.d/81-cdrom.rules: Set CD-ROM permissions and get device capabilities
+
+ACTION=="add", SUBSYSTEM=="block", ENV{ID_TYPE}=="cd", IMPORT{program}="cdrom_id --export $tempnode", GROUP="cdrom"
diff --git a/udev/contrib/debian/83-cdrom-symlinks.rules b/udev/contrib/debian/83-cdrom-symlinks.rules
new file mode 100644
index 0000000..4713c0b
--- /dev/null
+++ b/udev/contrib/debian/83-cdrom-symlinks.rules
@@ -0,0 +1,12 @@
+# /etc/udev/rules.d/83-cdrom-symlinks.rules: Determine CD drive capability.
+
+ACTION!="add",          GOTO="cd_aliases_generator_end"
+SUBSYSTEM!="block",     GOTO="cd_aliases_generator_end"
+ENV{GENERATED}=="?*",   GOTO="cd_aliases_generator_end"
+
+# Fail the uevent if the autogenerated rules cannot be saved
+ENV{ID_CDROM}=="?*", PROGRAM="/bin/grep -c ' / [^[:space:]]* rw' /proc/mounts", RESULT!="2", RUN+="/bin/false", GOTO="cd_aliases_generator_end"
+
+ENV{ID_CDROM}=="?*", PROGRAM="write_cd_aliases", SYMLINK+="%c"
+
+LABEL="cd_aliases_generator_end"
diff --git a/udev/contrib/debian/write_cd_aliases b/udev/contrib/debian/write_cd_aliases
new file mode 100644
index 0000000..ea8eeb7
--- /dev/null
+++ b/udev/contrib/debian/write_cd_aliases
@@ -0,0 +1,120 @@
+#!/bin/sh -e
+
+# Updated for LFS by B. Dubbs, 2012-09-23
+# Fix RULES_LOCK location
+
+
+RULES_FILE="/etc/udev/rules.d/82-persistent-cd.rules"
+
+##############################################################################
+lock_rules_file() {
+  RULES_LOCK="/run/udev/lock-${RULES_FILE##*/}"
+
+  if [ ! -d /run/udev/ ]; then
+    echo "write_cd_aliases: /run/udev does not exist!" >&2
+    exit 2
+  fi
+
+  retry=10
+  while ! mkdir $RULES_LOCK 2> /dev/null; do
+    if [ $retry -eq 0 ]; then
+       echo "Cannot lock $RULES_FILE!" >&2
+       exit 2
+    fi
+    sleep 1
+    retry=$(($retry - 1))
+  done
+}
+
+unlock_rules_file() {
+  rmdir $RULES_LOCK || true
+}
+
+##############################################################################
+find_next_available() {
+  # use echo to convert newlines to spaces
+  local links=`echo $(find_all_symlinks $1)`
+  local basename=${links%%[ 0-9]*}
+  local max=-1
+  for name in $links; do
+    local num=${name#$basename}
+    [ "$num" ] || num=0
+    [ $num -gt $max ] && max=$num
+  done
+
+  max=$(($max + 1))
+  # "name0" actually is just "name"
+  [ $max -eq 0 ] && return
+  echo "$max"
+}
+
+find_all_symlinks() {
+  local linkre="$1"
+  local match="$2"
+
+  [ -e $RULES_FILE ] || return
+
+  local search='.*[[:space:],]SYMLINK+="\('"$linkre"'\)"[[:space:]]*\(,.*\|\\\|\)$'
+
+  sed -n -e "${match}s/${search}/\1/p" $RULES_FILE
+}
+
+write_rule() {
+  local match="$1"
+  local link="$2"
+  local comment="$3"
+
+  [ -e "$RULES_FILE" ] || PRINT_HEADER=1
+  {
+  if [ "$PRINT_HEADER" ]; then
+    PRINT_HEADER=
+    echo "# This file was automatically generated by the $0"
+    echo "# program, probably run by the 83-cdrom.rules rules file."
+    echo "#"
+    echo "# You can modify it, as long as you keep each rule on a single line"
+    echo "# and set the \$GENERATED variable."
+    echo ""
+  fi
+
+  [ "$comment" ] && echo "# $comment"
+  echo "ACTION==\"add\", SUBSYSTEM==\"block\", $match, ENV{ID_CDROM}==\"1\", SYMLINK+=\"$link\", ENV{GENERATED}=\"1\""
+  } >> $RULES_FILE
+  SYMLINKS="$SYMLINKS $link"
+}
+
+##############################################################################
+if [ -z "$DEVPATH" ]; then
+  echo "Missing \$DEVPATH." >&2
+  exit 1
+fi
+if [ -z "$ID_CDROM" ]; then
+  echo "$DEVPATH is not a CD reader." >&2
+  exit 1
+fi
+
+# Prevent parallel processes from modifying the file at the same time.
+lock_rules_file
+
+link_num=$(find_next_available 'cdrom[0-9]*')
+
+#match="ENV{ID_PATH}==\"$ID_PATH\""
+
+#kernel=${DEVPATH##*/}
+#match="KERNEL==\"$kernel\""
+
+id=${PHYSDEVPATH##*/}
+match="BUS==\"$PHYSDEVBUS\", ID==\"$id\""
+
+comment="$ID_MODEL ($ID_PATH)"
+
+			  write_rule "$match" "cdrom$link_num" "$comment"
+[ "$ID_CDROM_CD_RW" ]  && write_rule "$match" "cdrw$link_num"
+[ "$ID_CDROM_DVD" ]    && write_rule "$match" "dvd$link_num"
+[ "$ID_CDROM_DVD_RW" ] && write_rule "$match" "dvdrw$link_num"
+
+unlock_rules_file
+
+echo $SYMLINKS
+
+exit 0
+
diff --git a/udev/init-net-rules.sh b/udev/init-net-rules.sh
new file mode 100644
index 0000000..a90652e
--- /dev/null
+++ b/udev/init-net-rules.sh
@@ -0,0 +1,129 @@
+#! /bin/bash
+
+# This script generates rules for persistent network device naming
+# Data from udev-182 75-persistent-net-generator.rules
+# Updated fof udev-197 (DEVICES=en*)
+
+RULES=/etc/udev/rules.d/70-persistent-net.rules 
+DEVICES=$(eval echo /sys/class/net/{en*,eth*,ath*,wlan*[0-9],msh*,ra*,sta*,ctc*,lcs*,hsi*})
+
+function usage
+{
+  echo $msg
+  echo "init-net-rules.sh is an LFS-specific script to initialize"
+  echo "$RULES"
+  exit 1
+}
+
+declare -A VENDORS_IGNORED
+VENDORS_IGNORED['52:54:00:']="kvm"
+VENDORS_IGNORED['00:0c:29:']="vmware"
+VENDORS_IGNORED['00:50:56:']="vmware"
+VENDORS_IGNORED['00:15:5d:']="hyper-v"
+VENDORS_IGNORED['00:00:00:']="invalid"
+
+declare -A VENDORS
+VENDORS['02:07:01:']="Interlan, DEC, etc"
+VENDORS['02:60:60:']="3com"
+VENDORS['02:60:8c:']="3Com IBM PC; Imagen. etc"
+VENDORS['02:a0:c9:']="intel"
+VENDORS['02:aa:3c:']="Olivetti"
+VENDORS['02:cf:1f:']="Masscomp, Silicon Graphics, etc"
+VENDORS['02:e0:3b:']="Gigabit"
+VENDORS['02:e6:d3:']="BTI"
+VENDORS['52:54:00:']="Realtek"
+VENDORS['52:54:4c:']="Novell"
+VENDORS['52:54:ab:']="Realtek"
+VENDORS['e2:0c:0f:']="Kingston"
+VENDORS['00:16:3e:']="Xensource"
+
+function ignore_if
+{
+   if [[ "${VENDORS_IGNORED[$VENDOR]}" != "" ]]; then return 0; fi
+   if [[ "${VENDORS[$VENDOR]}"         != "" ]]; then return 1; fi
+
+   byte2=$(echo $VENDOR | cut -c2)
+   if echo $byte2 | grep -q "[2367abef]"; then return 0; fi
+
+   return 1  # Default is to not ignore
+}
+
+function comment
+{
+  # Not implemented
+  # SUBSYSTEMS=="pci"
+  # export COMMENT="PCI device $attr{vendor}:$attr{device} ($driver)"
+
+  # SUBSYSTEMS=="usb", ATTRS{idVendor}=="?*"
+  # export COMMENT="USB device 0x$attr{idVendor}:0x$attr{idProduct} ($driver)"
+
+  # SUBSYSTEMS=="pcmcia",
+  # export COMMENT="PCMCIA device $attr{card_id}:$attr{manf_id} ($driver)"
+
+  # SUBSYSTEMS=="ieee1394",
+  # export COMMENT="Firewire device $attr{host_id})"
+
+  # ibmveth likes to use "locally administered" MAC addresses
+  # DRIVERS=="ibmveth",
+  # export COMMENT="ibmveth ($id)"
+
+  # S/390 uses id matches only, do not use MAC address match
+  # SUBSYSTEMS=="ccwgroup", 
+  # export COMMENT="S/390 $driver device at $id", 
+  # export MATCHID="$id" 
+  # export MATCHDRV="$driver"
+  # export MATCHADDR=""
+
+  # Default
+  driver=$(basename $(readlink -f $NIC/device/driver/module))
+  export COMMENT="net device ${driver}"
+}
+
+if ! mountpoint -q /sys; then
+  msg="/sys must be mounted"
+  usage
+fi
+
+if ! mountpoint -q /proc; then
+  msg="/proc must be mounted"
+  usage
+fi
+
+if [ -e $RULES ]; then
+  msg="The rules file already exists"
+  usage
+fi
+
+# Ignore Xen virtual interfaces
+if [ -e /proc/xen ]; then
+  msg="The rules file should not be created in the Xen environment"
+  usage
+fi 
+
+# Variables used to communicate with write_net_rules:
+#   INTERFACE             simple interface name         
+#   MATCHADDR             MAC address used for the match
+#   MATCHID               bus_id used for the match
+#   MATCHDRV              driver name used for the match
+#   MATCHIFTYPE           interface type match
+#   COMMENT               comment to add to the generated rule
+#   INTERFACE_NAME        requested name supplied by external tool
+#   INTERFACE_NEW         new interface name returned by rule writer
+
+for NIC in $DEVICES; do
+     IF=${NIC##*/}
+     if echo $NIC | grep -q '*' ; then continue; fi
+
+     export INTERFACE=${NIC##*/}            # Simple interface name
+     export MATCHADDR="$(cat $NIC/address)" # Read MAC address
+
+     VENDOR=$(echo $MATCHADDR | cut -c-9)
+     if ignore_if; then continue; fi
+
+     export MATCHDEVID="$(cat $NIC/dev_id)"
+     export MATCHIFTYPE="$(cat $NIC/type)"  # Read interface type
+     comment
+
+     /lib/udev/write_net_rules 
+done
+
diff --git a/udev/rule_generator.functions b/udev/rule_generator.functions
new file mode 100644
index 0000000..7b8521f
--- /dev/null
+++ b/udev/rule_generator.functions
@@ -0,0 +1,115 @@
+# functions used by the udev rule generator
+
+# Copyright (C) 2006 Marco d'Itri <md@Linux.IT>
+# Updated for LFS by Bruce Dubbs <bdubbs@linuxfromscratch.org>
+#  Hardcoded RUNDIR
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 2 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+PATH='/usr/bin:/bin:/usr/sbin:/sbin'
+
+# Read a single line from file $1 in the $DEVPATH directory.
+# The function must not return an error even if the file does not exist.
+sysread() {
+        local file="$1"
+        [ -e "/sys$DEVPATH/$file" ] || return 0
+        local value
+        read value < "/sys$DEVPATH/$file" || return 0
+        echo "$value"
+}
+
+sysreadlink() {
+        local file="$1"
+        [ -e "/sys$DEVPATH/$file" ] || return 0
+        readlink -f /sys$DEVPATH/$file 2> /dev/null || true
+}
+
+# Return true if a directory is writeable.
+writeable() {
+        if ln -s test-link $1/.is-writeable 2> /dev/null; then
+                rm -f $1/.is-writeable
+                return 0
+        else
+                return 1
+        fi
+}
+
+# Create a lock file for the current rules file.
+lock_rules_file() {
+        RUNDIR=/run/udev
+        [ -e "$RUNDIR" ] || return 0
+
+        RULES_LOCK="$RUNDIR/.lock-${RULES_FILE##*/}"
+
+        retry=30
+        while ! mkdir $RULES_LOCK 2> /dev/null; do
+                if [ $retry -eq 0 ]; then
+                         echo "Cannot lock $RULES_FILE!" >&2
+                         exit 2
+                fi
+                sleep 1
+                retry=$(($retry - 1))
+        done
+}
+
+unlock_rules_file() {
+        [ "$RULES_LOCK" ] || return 0
+        rmdir $RULES_LOCK || true
+}
+
+# Choose the real rules file if it is writeable or a temporary file if not.
+# Both files should be checked later when looking for existing rules.
+choose_rules_file() {
+        RUNDIR=/run/udev
+        local tmp_rules_file="$RUNDIR/tmp-rules--${RULES_FILE##*/}"
+        [ -e "$RULES_FILE" -o -e "$tmp_rules_file" ] || PRINT_HEADER=1
+
+        if writeable ${RULES_FILE%/*}; then
+                RO_RULES_FILE='/dev/null'
+        else
+                RO_RULES_FILE=$RULES_FILE
+                RULES_FILE=$tmp_rules_file
+        fi
+}
+
+# Return the name of the first free device.
+raw_find_next_available() {
+        local links="$1"
+
+        local basename=${links%%[ 0-9]*}
+        local max=-1
+        for name in $links; do
+                local num=${name#$basename}
+                [ "$num" ] || num=0
+                [ $num -gt $max ] && max=$num
+        done
+
+        local max=$(($max + 1))
+        # "name0" actually is just "name"
+        [ $max -eq 0 ] && return
+        echo "$max"
+}
+
+# Find all rules matching a key (with action) and a pattern.
+find_all_rules() {
+        local key="$1"
+        local linkre="$2"
+        local match="$3"
+
+        local search='.*[[:space:],]'"$key"'"('"$linkre"')".*'
+        echo $(sed -n -r -e 's/^#.*//' -e "${match}s/${search}/\1/p" \
+                $RO_RULES_FILE \
+                $([ -e $RULES_FILE ] && echo $RULES_FILE) \
+                2>/dev/null)
+}
diff --git a/udev/write_cd_rules b/udev/write_cd_rules
new file mode 100755
index 0000000..645b9cd
--- /dev/null
+++ b/udev/write_cd_rules
@@ -0,0 +1,126 @@
+#!/bin/sh -e
+
+# This script is run if an optical drive lacks a rule for persistent naming.
+#
+# It adds symlinks for optical drives based on the device class determined
+# by cdrom_id and used ID_PATH to identify the device.
+
+# (C) 2006 Marco d'Itri <md@Linux.IT>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 2 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# debug, if UDEV_LOG=<debug>
+if [ -n "$UDEV_LOG" ]; then
+        if [ "$UDEV_LOG" -ge 7 ]; then
+                set -x
+        fi
+fi
+
+RULES_FILE="/etc/udev/rules.d/70-persistent-cd.rules"
+
+. /lib/udev/rule_generator.functions
+
+find_next_available() {
+        raw_find_next_available "$(find_all_rules 'SYMLINK\+=' "$1")"
+}
+
+write_rule() {
+        local match="$1"
+        local link="$2"
+        local comment="$3"
+
+        {
+        if [ "$PRINT_HEADER" ]; then
+                PRINT_HEADER=
+                echo "# This file was automatically generated by the $0"
+                echo "# program, run by the cd-aliases-generator.rules rules file."
+                echo "#"
+                echo "# You can modify it, as long as you keep each rule on a single"
+                echo "# line, and set the \$GENERATED variable."
+                echo ""
+        fi
+
+        [ "$comment" ] && echo "# $comment"
+        echo "$match, SYMLINK+=\"$link\", ENV{GENERATED}=\"1\""
+        } >> $RULES_FILE
+        SYMLINKS="$SYMLINKS $link"
+}
+
+if [ -z "$DEVPATH" ]; then
+        echo "Missing \$DEVPATH." >&2
+        exit 1
+fi
+if [ -z "$ID_CDROM" ]; then
+        echo "$DEVPATH is not a CD reader." >&2
+        exit 1
+fi
+
+if [ "$1" ]; then
+        METHOD="$1"
+else
+        METHOD='by-path'
+fi
+
+case "$METHOD" in
+        by-path)
+        if [ -z "$ID_PATH" ]; then
+                echo "$DEVPATH not supported by path_id. by-id may work." >&2
+                exit 1
+        fi
+        RULE="ENV{ID_PATH}==\"$ID_PATH\""
+        ;;
+
+        by-id)
+        if [ "$ID_SERIAL" ]; then
+                RULE="ENV{ID_SERIAL}==\"$ID_SERIAL\""
+        elif [ "$ID_MODEL" -a "$ID_REVISION" ]; then
+                RULE="ENV{ID_MODEL}==\"$ID_MODEL\", ENV{ID_REVISION}==\"$ID_REVISION\""
+        else
+                echo "$DEVPATH not supported by ata_id. by-path may work." >&2
+                exit 1
+        fi
+        ;;
+
+        *)
+        echo "Invalid argument (must be either by-path or by-id)." >&2
+        exit 1
+        ;;
+esac
+
+# Prevent concurrent processes from modifying the file at the same time.
+lock_rules_file
+
+# Check if the rules file is writeable.
+choose_rules_file
+
+link_num=$(find_next_available 'cdrom[0-9]*')
+
+match="SUBSYSTEM==\"block\", ENV{ID_CDROM}==\"?*\", $RULE"
+
+comment="$ID_MODEL ($ID_PATH)"
+
+        write_rule "$match" "cdrom$link_num" "$comment"
+[ "$ID_CDROM_CD_R" -o "$ID_CDROM_CD_RW" ] && \
+        write_rule "$match" "cdrw$link_num"
+[ "$ID_CDROM_DVD" ] && \
+        write_rule "$match" "dvd$link_num"
+[ "$ID_CDROM_DVD_R" -o "$ID_CDROM_DVD_RW" -o "$ID_CDROM_DVD_RAM" ] && \
+        write_rule "$match" "dvdrw$link_num"
+echo >> $RULES_FILE
+
+unlock_rules_file
+
+echo $SYMLINKS
+
+exit 0
diff --git a/udev/write_net_rules b/udev/write_net_rules
new file mode 100755
index 0000000..f7c7761
--- /dev/null
+++ b/udev/write_net_rules
@@ -0,0 +1,140 @@
+#!/bin/sh -e
+
+# This script is run to create persistent network device naming rules
+# based on properties of the device.
+# If the interface needs to be renamed, INTERFACE_NEW=<name> will be printed
+# on stdout to allow udev to IMPORT it.
+
+# variables used to communicate:
+#   MATCHADDR             MAC address used for the match
+#   MATCHID               bus_id used for the match
+#   MATCHDEVID            dev_id used for the match
+#   MATCHDRV              driver name used for the match
+#   MATCHIFTYPE           interface type match
+#   COMMENT               comment to add to the generated rule
+#   INTERFACE_NAME        requested name supplied by external tool
+#   INTERFACE_NEW         new interface name returned by rule writer
+
+# Copyright (C) 2006 Marco d'Itri <md@Linux.IT>
+# Copyright (C) 2007 Kay Sievers <kay.sievers@vrfy.org>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# debug, if UDEV_LOG=<debug>
+if [ -n "$UDEV_LOG" ]; then
+        if [ "$UDEV_LOG" -ge 7 ]; then
+                set -x
+        fi
+fi
+
+RULES_FILE='/etc/udev/rules.d/70-persistent-net.rules'
+
+. /lib/udev/rule_generator.functions
+
+interface_name_taken() {
+        local value="$(find_all_rules 'NAME=' $INTERFACE)"
+        if [ "$value" ]; then
+                return 0
+        else
+                return 1
+        fi
+}
+
+find_next_available() {
+        raw_find_next_available "$(find_all_rules 'NAME=' "$1")"
+}
+
+write_rule() {
+        local match="$1"
+        local name="$2"
+        local comment="$3"
+
+        {
+        if [ "$PRINT_HEADER" ]; then
+                PRINT_HEADER=
+                echo "# This file was automatically generated by the $0"
+                echo "# program, run by the persistent-net-generator.rules rules file."
+                echo "#"
+                echo "# You can modify it, as long as you keep each rule on a single"
+                echo "# line, and change only the value of the NAME= key."
+        fi
+
+        echo ""
+        [ "$comment" ] && echo "# $comment"
+        echo "SUBSYSTEM==\"net\", ACTION==\"add\"$match, NAME=\"$name\""
+        } >> $RULES_FILE
+}
+
+if [ -z "$INTERFACE" ]; then
+        echo "missing \$INTERFACE" >&2
+        exit 1
+fi
+
+# Prevent concurrent processes from modifying the file at the same time.
+lock_rules_file
+
+# Check if the rules file is writeable.
+choose_rules_file
+
+# the DRIVERS key is needed to not match bridges and VLAN sub-interfaces
+if [ "$MATCHADDR" ]; then
+        match="$match, DRIVERS==\"?*\", ATTR{address}==\"$MATCHADDR\""
+fi
+
+if [ "$MATCHDRV" ]; then
+        match="$match, DRIVERS==\"$MATCHDRV\""
+fi
+
+if [ "$MATCHDEVID" ]; then
+        match="$match, ATTR{dev_id}==\"$MATCHDEVID\""
+fi
+
+if [ "$MATCHID" ]; then
+        match="$match, KERNELS==\"$MATCHID\""
+fi
+
+if [ "$MATCHIFTYPE" ]; then
+        match="$match, ATTR{type}==\"$MATCHIFTYPE\""
+fi
+
+if [ -z "$match" ]; then
+        echo "missing valid match" >&2
+        unlock_rules_file
+        exit 1
+fi
+
+basename=${INTERFACE%%[0-9]*}
+
+if [ "$INTERFACE_NAME" ]; then
+        # external tools may request a custom name
+        COMMENT="$COMMENT (custom name provided by external tool)"
+        if [ "$INTERFACE_NAME" != "$INTERFACE" ]; then
+                INTERFACE=$INTERFACE_NAME;
+                echo "INTERFACE_NEW=$INTERFACE"
+        fi
+else
+        # if a rule using the current name already exists, find a new name
+        if interface_name_taken; then
+                INTERFACE="$basename$(find_next_available "$basename[0-9]*")"
+                # prevent INTERFACE from being "eth" instead of "eth0"
+                [ "$INTERFACE" = "${INTERFACE%%[ \[\]0-9]*}" ] && INTERFACE=${INTERFACE}0
+                echo "INTERFACE_NEW=$INTERFACE"
+        fi
+fi
+
+write_rule "$match" "$INTERFACE" "$COMMENT"
+
+unlock_rules_file
+
+exit 0