Linux за българи: Форуми

#ps -A | grep dhcp
3344 ?        00:00:00 dhcpcd <defunct>

#ps -A | grep dhcp

# grep dhcp* *
rc.0:# In case dhcpcd might have been manually started on the command line,
rc.0:# look for the .pid file, and shut dhcpcd down if it's found:
rc.0:if /bin/ls /etc/dhcpc/*.pid 1> /dev/null 2> /dev/null ; then
rc.0:  /sbin/dhcpcd -k 1> /dev/null 2> /dev/null
rc.6:# In case dhcpcd might have been manually started on the command line,
rc.6:# look for the .pid file, and shut dhcpcd down if it's found:
rc.6:if /bin/ls /etc/dhcpc/*.pid 1> /dev/null 2> /dev/null ; then
rc.6:  /sbin/dhcpcd -k 1> /dev/null 2> /dev/null
rc.S:  /etc/dhcpc/*.pid /etc/forcefsck /etc/fastboot \
rc.inet1:        echo "/etc/rc.d/rc.inet1:  /sbin/dhcpcd -d -t ${DHCP_TIMEOUT[$i]:-30} ${DHCP_OPTIONS} ${1}" | $LOGGER
rc.inet1:        /sbin/dhcpcd -d -t ${DHCP_TIMEOUT[$i]:-30} ${DHCP_OPTIONS} ${1}
rc.inet1:      echo "/etc/rc.d/rc.inet1:  /sbin/dhcpcd -k -d ${1}" | $LOGGER
rc.inet1:      /sbin/dhcpcd -k -d ${1} 2> /dev/null || /sbin/ifconfig ${1} down
rc.wireless:    # an IP address by manually setting the ESSID and then calling dhcpcd,

#cat rc.0
#! /bin/sh
#
# rc.6		This file is executed by init when it goes into runlevel
#		0 (halt) or runlevel 6 (reboot). It kills all processes,
#		unmounts file systems and then either halts or reboots.
#
# Version:	@(#)/etc/rc.d/rc.6	2.47 Sat Jan 13 13:37:26 PST 2001
#
# Author:	Miquel van Smoorenburg <miquels@drinkel.nl.mugnet.org>
# Modified by:  Patrick J. Volkerding, <volkerdi@slackware.com>
#

# Set the path.
PATH=/sbin:/etc:/bin:/usr/bin

# If there are SystemV init scripts for this runlevel, run them.
if [ -x /etc/rc.d/rc.sysvinit ]; then
  . /etc/rc.d/rc.sysvinit
fi

# Set linefeed mode to avoid staircase effect.
/bin/stty onlcr

echo "Running shutdown script $0:"

# Find out how we were called.
case "$0" in
	*0)
		command="halt"
		;;
	*6)
		command=reboot
		;;
	*)
		echo "$0: call me as \"rc.0\" or \"rc.6\" please!"
		exit 1
		;;
esac

# Save the system time to the hardware clock using hwclock --systohc.
if [ -x /sbin/hwclock ]; then
  # Check for a broken motherboard RTC clock (where ioports for rtc are
  # unknown) to prevent hwclock causing a hang:
  if ! grep -q -w rtc /proc/ioports ; then
    CLOCK_OPT="--directisa"
  fi
  if grep -q "^UTC" /etc/hardwareclock 2> /dev/null ; then
    echo "Saving system time to the hardware clock (UTC)."
    /sbin/hwclock $CLOCK_OPT --utc --systohc
  else
    echo "Saving system time to the hardware clock (localtime)."
    /sbin/hwclock  $CLOCK_OPT --localtime --systohc
  fi
fi

# Run any local shutdown scripts:
if [ -x /etc/rc.d/rc.local_shutdown ]; then
  /etc/rc.d/rc.local_shutdown stop
fi

# Stop the Apache web server:
if [ -x /etc/rc.d/rc.httpd ]; then
  /etc/rc.d/rc.httpd stop
fi

# Stop the MySQL database:
if [ -r /var/run/mysql/mysql.pid ]; then
  . /etc/rc.d/rc.mysqld stop
fi

# Stop the Samba server:
if [ -x /etc/rc.d/rc.samba ]; then
  . /etc/rc.d/rc.samba stop
fi

# Shut down the NFS server:
if [ -x /etc/rc.d/rc.nfsd ]; then
  /etc/rc.d/rc.nfsd stop
fi

# Shut down the SSH server:
if [ -x /etc/rc.d/rc.sshd ]; then
  /etc/rc.d/rc.sshd stop
fi

# Shut down the SASL authentication daemon:
if [ -x /etc/rc.d/rc.saslauthd ]; then
  /etc/rc.d/rc.saslauthd stop
fi

# Shut down OpenLDAP:
if [ -x /etc/rc.d/rc.openldap ]; then
  /etc/rc.d/rc.openldap stop
fi

# Stop D-Bus:
if [ -x /etc/rc.d/rc.messagebus ]; then
  sh /etc/rc.d/rc.messagebus stop
fi

# Unmount any NFS, SMB, or CIFS filesystems:
echo "Unmounting remote filesystems."
/bin/umount -v -a -r -t nfs,smbfs,cifs

# Try to shut down pppd:
PS="$(ps ax)"
if echo "$PS" | /bin/grep -q -w pppd ; then
  if [ -x /usr/sbin/ppp-off ]; then
    /usr/sbin/ppp-off
  fi
fi

# Bring down the networking system, but first make sure that this
# isn't a diskless client with the / partition mounted via NFS:
if ! /bin/mount | /bin/grep -q 'on / type nfs' ; then
  if [ -x /etc/rc.d/rc.inet1 ]; then
    . /etc/rc.d/rc.inet1 stop
  fi
fi

# In case dhcpcd might have been manually started on the command line,
# look for the .pid file, and shut dhcpcd down if it's found:
if /bin/ls /etc/dhcpc/*.pid 1> /dev/null 2> /dev/null ; then
  /sbin/dhcpcd -k 1> /dev/null 2> /dev/null
  # A little time for /etc/resolv.conf and/or other files to
  # restore themselves.
  sleep 2
fi

# Shut down PCMCIA devices:
if [ -x /etc/rc.d/rc.pcmcia ]; then
  . /etc/rc.d/rc.pcmcia stop
  # The cards might need a little extra time here to deactivate:
  /bin/sleep 5
fi

# Turn off process accounting:
if [ -x /sbin/accton -a -r /var/log/pacct ]; then
  /sbin/accton off
fi

# Terminate acpid before syslog:
if [ -x /etc/rc.d/rc.acpid -a -r /var/run/acpid.pid ]; then # quit
  . /etc/rc.d/rc.acpid stop
fi

# Kill all processes.
# INIT is supposed to handle this entirely now, but this didn't always
# work correctly without this second pass at killing off the processes.
# Since INIT already notified the user that processes were being killed,
# we'll avoid echoing this info this time around.
if [ ! "$1" = "fast" ]; then # shutdown did not already kill all processes
  /sbin/killall5 -15 
  /bin/sleep 5
  /sbin/killall5 -9
fi

# Try to turn off quota.
if /bin/grep -q quota /etc/fstab ; then
  if [ -x /sbin/quotaoff ]; then
    echo "Turning off filesystem quotas."
    /sbin/quotaoff -a
  fi
fi

# Carry a random seed between reboots.
echo "Saving random seed from /dev/urandom in /etc/random-seed."
# Use the pool size from /proc, or 512 bytes:
if [ -r /proc/sys/kernel/random/poolsize ]; then
  /bin/dd if=/dev/urandom of=/etc/random-seed count=1 bs=$(cat /proc/sys/kernel/random/poolsize) 2> /dev/null
else
  /bin/dd if=/dev/urandom of=/etc/random-seed count=1 bs=512 2> /dev/null
fi
/bin/chmod 600 /etc/random-seed

# Before unmounting file systems write a reboot or halt record to wtmp.
$command -w

# Clear /var/lock/subsys.
if [ -d /var/lock/subsys ]; then
  rm -f /var/lock/subsys/*
fi

# Turn off swap:
echo "Turning off swap."
/sbin/swapoff -a
/bin/sync

# Umount any LVM volumes:
if /bin/mount | /bin/grep -q '^/dev/mapper/' ; then
  echo "Unmounting LVM volumes."
  /bin/umount -v $(/bin/mount | /bin/grep '^/dev/mapper/' | /bin/cut -d ' ' -f 3 | /bin/tac)
fi

echo "Unmounting local file systems."
/bin/umount -v -a -t no,proc,sysfs

echo "Remounting root filesystem read-only."
/bin/mount -v -n -o remount,ro /

# This never hurts:
/bin/sync

# Close any volumes opened by cryptsetup:
if [ -f /etc/crypttab -a -x /sbin/cryptsetup.static ]; then
  cat /etc/crypttab | grep -v "^#" | grep -v "^$" | while read line; do
    # NOTE: we only support LUKS formatted volumes (except for swap)!
    LUKS=$(echo $line | tr '\t' ' ' | tr -s ' ' | cut -f1 -d' ')
    DEV=$(echo $line | tr '\t' ' ' | tr -s ' ' | cut -f2 -d' ')
    OPTS=$(echo $line | tr '\t' ' ' | tr -s ' ' | cut -f4 -d' ')
    if /sbin/cryptsetup.static isLuks $DEV 2>/dev/null ; then
      echo "Locking LUKS crypt volume '${LUKS}':"
      /sbin/cryptsetup.static luksClose ${LUKS}
    elif echo $OPTS | grep -wq swap ; then
      # If any of the volumes was used as encrypted swap,
      # then run mkswap on the underlying device -
      # in case other Linux installations on this computer should use it:
      echo "Erasing encrypted swap '${LUKS}' and restoring normal swap on ${DEV}:"
      /sbin/cryptsetup.static remove ${LUKS}
      mkswap $DEV
    fi
  done
fi

# Deactivate LVM volume groups:
if [ -r /etc/lvmtab -o -d /etc/lvm/backup ]; then
  echo "Deactivating LVM volume groups:"
  /sbin/vgchange -an --ignorelockingfailure
fi

# This never hurts again (especially since root-on-LVM always fails
# to deactivate the / logical volume...  but at least it was
# remounted as read-only first)
/bin/sync

# sleep 3 fixes problems with some hard drives that don't
# otherwise finish syncing before reboot or poweroff
/bin/sleep 3

# This is to ensure all processes have completed on SMP machines:
wait

if [ -x /sbin/genpowerd ]; then
  # See if this is a powerfail situation:
  if /bin/egrep -q "FAIL|SCRAM" /etc/upsstatus 2> /dev/null ; then
    # Signal UPS to shut off the inverter:
    /sbin/genpowerd -k
    if [ ! $? = 0 ]; then
      echo
      echo "There was an error signaling the UPS."
      echo "Perhaps you need to edit /etc/genpowerd.conf to configure"
      echo "the serial line and UPS type."
      # Wasting 15 seconds of precious power:
      /bin/sleep 15
    fi
  fi
fi

# Now halt (poweroff with APM or ACPI enabled kernels) or reboot.
if [ "$command" = "reboot" ]; then
  echo "Rebooting."
  /sbin/reboot
else
  /sbin/poweroff
fi

#cat rc.6

#! /bin/sh
#
# rc.6		This file is executed by init when it goes into runlevel
#		0 (halt) or runlevel 6 (reboot). It kills all processes,
#		unmounts file systems and then either halts or reboots.
#
# Version:	@(#)/etc/rc.d/rc.6	2.47 Sat Jan 13 13:37:26 PST 2001
#
# Author:	Miquel van Smoorenburg <miquels@drinkel.nl.mugnet.org>
# Modified by:  Patrick J. Volkerding, <volkerdi@slackware.com>
#

# Set the path.
PATH=/sbin:/etc:/bin:/usr/bin

# If there are SystemV init scripts for this runlevel, run them.
if [ -x /etc/rc.d/rc.sysvinit ]; then
  . /etc/rc.d/rc.sysvinit
fi

# Set linefeed mode to avoid staircase effect.
/bin/stty onlcr

echo "Running shutdown script $0:"

# Find out how we were called.
case "$0" in
	*0)
		command="halt"
		;;
	*6)
		command=reboot
		;;
	*)
		echo "$0: call me as \"rc.0\" or \"rc.6\" please!"
		exit 1
		;;
esac

# Save the system time to the hardware clock using hwclock --systohc.
if [ -x /sbin/hwclock ]; then
  # Check for a broken motherboard RTC clock (where ioports for rtc are
  # unknown) to prevent hwclock causing a hang:
  if ! grep -q -w rtc /proc/ioports ; then
    CLOCK_OPT="--directisa"
  fi
  if grep -q "^UTC" /etc/hardwareclock 2> /dev/null ; then
    echo "Saving system time to the hardware clock (UTC)."
    /sbin/hwclock $CLOCK_OPT --utc --systohc
  else
    echo "Saving system time to the hardware clock (localtime)."
    /sbin/hwclock  $CLOCK_OPT --localtime --systohc
  fi
fi

# Run any local shutdown scripts:
if [ -x /etc/rc.d/rc.local_shutdown ]; then
  /etc/rc.d/rc.local_shutdown stop
fi

# Stop the Apache web server:
if [ -x /etc/rc.d/rc.httpd ]; then
  /etc/rc.d/rc.httpd stop
fi

# Stop the MySQL database:
if [ -r /var/run/mysql/mysql.pid ]; then
  . /etc/rc.d/rc.mysqld stop
fi

# Stop the Samba server:
if [ -x /etc/rc.d/rc.samba ]; then
  . /etc/rc.d/rc.samba stop
fi

# Shut down the NFS server:
if [ -x /etc/rc.d/rc.nfsd ]; then
  /etc/rc.d/rc.nfsd stop
fi

# Shut down the SSH server:
if [ -x /etc/rc.d/rc.sshd ]; then
  /etc/rc.d/rc.sshd stop
fi

# Shut down the SASL authentication daemon:
if [ -x /etc/rc.d/rc.saslauthd ]; then
  /etc/rc.d/rc.saslauthd stop
fi

# Shut down OpenLDAP:
if [ -x /etc/rc.d/rc.openldap ]; then
  /etc/rc.d/rc.openldap stop
fi

# Stop D-Bus:
if [ -x /etc/rc.d/rc.messagebus ]; then
  sh /etc/rc.d/rc.messagebus stop
fi

# Unmount any NFS, SMB, or CIFS filesystems:
echo "Unmounting remote filesystems."
/bin/umount -v -a -r -t nfs,smbfs,cifs

# Try to shut down pppd:
PS="$(ps ax)"
if echo "$PS" | /bin/grep -q -w pppd ; then
  if [ -x /usr/sbin/ppp-off ]; then
    /usr/sbin/ppp-off
  fi
fi

# Bring down the networking system, but first make sure that this
# isn't a diskless client with the / partition mounted via NFS:
if ! /bin/mount | /bin/grep -q 'on / type nfs' ; then
  if [ -x /etc/rc.d/rc.inet1 ]; then
    . /etc/rc.d/rc.inet1 stop
  fi
fi

# In case dhcpcd might have been manually started on the command line,
# look for the .pid file, and shut dhcpcd down if it's found:
if /bin/ls /etc/dhcpc/*.pid 1> /dev/null 2> /dev/null ; then
  /sbin/dhcpcd -k 1> /dev/null 2> /dev/null
  # A little time for /etc/resolv.conf and/or other files to
  # restore themselves.
  sleep 2
fi

# Shut down PCMCIA devices:
if [ -x /etc/rc.d/rc.pcmcia ]; then
  . /etc/rc.d/rc.pcmcia stop
  # The cards might need a little extra time here to deactivate:
  /bin/sleep 5
fi

# Turn off process accounting:
if [ -x /sbin/accton -a -r /var/log/pacct ]; then
  /sbin/accton off
fi

# Terminate acpid before syslog:
if [ -x /etc/rc.d/rc.acpid -a -r /var/run/acpid.pid ]; then # quit
  . /etc/rc.d/rc.acpid stop
fi

# Kill all processes.
# INIT is supposed to handle this entirely now, but this didn't always
# work correctly without this second pass at killing off the processes.
# Since INIT already notified the user that processes were being killed,
# we'll avoid echoing this info this time around.
if [ ! "$1" = "fast" ]; then # shutdown did not already kill all processes
  /sbin/killall5 -15 
  /bin/sleep 5
  /sbin/killall5 -9
fi

# Try to turn off quota.
if /bin/grep -q quota /etc/fstab ; then
  if [ -x /sbin/quotaoff ]; then
    echo "Turning off filesystem quotas."
    /sbin/quotaoff -a
  fi
fi

# Carry a random seed between reboots.
echo "Saving random seed from /dev/urandom in /etc/random-seed."
# Use the pool size from /proc, or 512 bytes:
if [ -r /proc/sys/kernel/random/poolsize ]; then
  /bin/dd if=/dev/urandom of=/etc/random-seed count=1 bs=$(cat /proc/sys/kernel/random/poolsize) 2> /dev/null
else
  /bin/dd if=/dev/urandom of=/etc/random-seed count=1 bs=512 2> /dev/null
fi
/bin/chmod 600 /etc/random-seed

# Before unmounting file systems write a reboot or halt record to wtmp.
$command -w

# Clear /var/lock/subsys.
if [ -d /var/lock/subsys ]; then
  rm -f /var/lock/subsys/*
fi

# Turn off swap:
echo "Turning off swap."
/sbin/swapoff -a
/bin/sync

# Umount any LVM volumes:
if /bin/mount | /bin/grep -q '^/dev/mapper/' ; then
  echo "Unmounting LVM volumes."
  /bin/umount -v $(/bin/mount | /bin/grep '^/dev/mapper/' | /bin/cut -d ' ' -f 3 | /bin/tac)
fi

echo "Unmounting local file systems."
/bin/umount -v -a -t no,proc,sysfs

echo "Remounting root filesystem read-only."
/bin/mount -v -n -o remount,ro /

# This never hurts:
/bin/sync

# Close any volumes opened by cryptsetup:
if [ -f /etc/crypttab -a -x /sbin/cryptsetup.static ]; then
  cat /etc/crypttab | grep -v "^#" | grep -v "^$" | while read line; do
    # NOTE: we only support LUKS formatted volumes (except for swap)!
    LUKS=$(echo $line | tr '\t' ' ' | tr -s ' ' | cut -f1 -d' ')
    DEV=$(echo $line | tr '\t' ' ' | tr -s ' ' | cut -f2 -d' ')
    OPTS=$(echo $line | tr '\t' ' ' | tr -s ' ' | cut -f4 -d' ')
    if /sbin/cryptsetup.static isLuks $DEV 2>/dev/null ; then
      echo "Locking LUKS crypt volume '${LUKS}':"
      /sbin/cryptsetup.static luksClose ${LUKS}
    elif echo $OPTS | grep -wq swap ; then
      # If any of the volumes was used as encrypted swap,
      # then run mkswap on the underlying device -
      # in case other Linux installations on this computer should use it:
      echo "Erasing encrypted swap '${LUKS}' and restoring normal swap on ${DEV}:"
      /sbin/cryptsetup.static remove ${LUKS}
      mkswap $DEV
    fi
  done
fi

# Deactivate LVM volume groups:
if [ -r /etc/lvmtab -o -d /etc/lvm/backup ]; then
  echo "Deactivating LVM volume groups:"
  /sbin/vgchange -an --ignorelockingfailure
fi

# This never hurts again (especially since root-on-LVM always fails
# to deactivate the / logical volume...  but at least it was
# remounted as read-only first)
/bin/sync

# sleep 3 fixes problems with some hard drives that don't
# otherwise finish syncing before reboot or poweroff
/bin/sleep 3

# This is to ensure all processes have completed on SMP machines:
wait

if [ -x /sbin/genpowerd ]; then
  # See if this is a powerfail situation:
  if /bin/egrep -q "FAIL|SCRAM" /etc/upsstatus 2> /dev/null ; then
    # Signal UPS to shut off the inverter:
    /sbin/genpowerd -k
    if [ ! $? = 0 ]; then
      echo
      echo "There was an error signaling the UPS."
      echo "Perhaps you need to edit /etc/genpowerd.conf to configure"
      echo "the serial line and UPS type."
      # Wasting 15 seconds of precious power:
      /bin/sleep 15
    fi
  fi
fi

# Now halt (poweroff with APM or ACPI enabled kernels) or reboot.
if [ "$command" = "reboot" ]; then
  echo "Rebooting."
  /sbin/reboot
else
  /sbin/poweroff
fi

#cat rc.inet1
#! /bin/sh
# /etc/rc.d/rc.inet1
# This script is used to bring up the various network interfaces.
#
# @(#)/etc/rc.d/rc.inet1 10.2  Sun Jul 24 12:45:56 PDT 2005  (pjv)

############################
# READ NETWORK CONFIG FILE #
############################

# Get the configuration information from /etc/rc.d/rc.inet1.conf:
. /etc/rc.d/rc.inet1.conf

###########
# LOGGING #
###########

# If possible, log events in /var/log/messages:
if [ -f /var/run/syslogd.pid -a -x /usr/bin/logger ]; then
  LOGGER=/usr/bin/logger
else # output to stdout/stderr:
  LOGGER=/bin/cat
fi

############################
# DETERMINE INTERFACE LIST #
############################

# Compose a list of interfaces from /etc/rc.d/rc.inet1.conf (with a maximum
# of 6 interfaces, but you can easily enlarge the interface limit
# - send me a picture of such a box :-).
# If a value for IFNAME[n] is not set, we assume it is an eth'n' interface.
# This way, the new script is compatible with older rc.inet1.conf files.
# The IFNAME array will be used to determine which interfaces to bring up/down.
MAXNICS=${MAXNICS:-6}
i=0
while [ $i -lt $MAXNICS ];
do
  IFNAME[$i]=${IFNAME[$i]:=eth${i}}
  i=$(($i+1))
done
if [ "$DEBUG_ETH_UP" = "yes" ]; then
  echo "/etc/rc.d/rc.inet1:  List of interfaces: '${IFNAME[@]}'" | $LOGGER
fi

######################
# LOOPBACK FUNCTIONS #
######################

# Function to bring up the loopback interface.  If loopback is
# already up, do nothing.
lo_up() {
  if grep lo: /proc/net/dev 1> /dev/null ; then
    if ! /sbin/ifconfig | grep "^lo" 1> /dev/null ; then
      echo "/etc/rc.d/rc.inet1:  /sbin/ifconfig lo 127.0.0.1" | $LOGGER
      /sbin/ifconfig lo 127.0.0.1
      echo "/etc/rc.d/rc.inet1:  /sbin/route add -net 127.0.0.0 netmask 255.0.0.0 lo" | $LOGGER
      /sbin/route add -net 127.0.0.0 netmask 255.0.0.0 lo
    fi
  fi
}

# Function to take down the loopback interface:
lo_down() {
  if grep lo: /proc/net/dev 1> /dev/null ; then
    echo "/etc/rc.d/rc.inet1:  /sbin/ifconfig lo down" | $LOGGER
    /sbin/ifconfig lo down
  fi
}

#######################
# INTERFACE FUNCTIONS #
#######################

# Function to bring up a network interface.  If the interface is
# already up or does not yet exist (perhaps because the kernel driver
# is not loaded yet), do nothing.
if_up() {
  # Determine position 'i' of this interface in the IFNAME array:
  i=0
  while [ $i -lt $MAXNICS ]; do
    [ "${IFNAME[$i]}" = "${1}" ] && break
    i=$(($i+1))
  done
  # If the interface isn't in the kernel yet (but there's an alias for it in
  # modules.conf), then it should be loaded first:
  if ! grep `echo ${1}: | cut -f 1 -d :`: /proc/net/dev 1> /dev/null ; then # no interface yet
    if /sbin/modprobe -c | grep -v "^#" | grep -w "alias ${1}" | grep -vw "alias ${1} off" > /dev/null ; then
      echo "/etc/rc.d/rc.inet1:  /sbin/modprobe ${1}" | $LOGGER
      /sbin/modprobe ${1}
    fi
  fi
  if grep `echo ${1}: | cut -f 1 -d :`: /proc/net/dev 1> /dev/null ; then # interface exists
    if ! /sbin/ifconfig | grep -w "${1}" 1>/dev/null || \
      ! /sbin/ifconfig ${1} | grep "inet addr" 1> /dev/null ; then # interface not up or not configured
      if [ ! "${HWADDR[$i]}" = "" ]; then # Set hardware address _before_ the interface goes up:
        echo "/etc/rc.d/rc.inet1:  /sbin/ifconfig ${1} hw ether ${HWADDR[$i]}" | $LOGGER
        /sbin/ifconfig ${1} hw ether ${HWADDR[$i]}
      fi
      if [ ! "${MTU[$i]}" = "" ]; then # Set MTU to something else than 1500
        echo "/etc/rc.d/rc.inet1:  /sbin/ifconfig ${1} mtu ${MTU[$i]}" | $LOGGER
        /sbin/ifconfig ${1} mtu ${MTU[$i]}
      fi
      if [ -x /etc/rc.d/rc.wireless ]; then
        . /etc/rc.d/rc.wireless ${1} start # Initialize any wireless parameters
      fi
      if [ "${USE_DHCP[$i]}" = "yes" ]; then # use DHCP to bring interface up
        [ ${DHCP_HOSTNAME[$i]} ] && DHCP_OPTIONS="-h ${DHCP_HOSTNAME[$i]}"
        [ "${DHCP_KEEPRESOLV[$i]}" = "yes" ] && DHCP_OPTIONS="$DHCP_OPTIONS -R"
        [ "${DHCP_KEEPNTP[$i]}" = "yes" ] && DHCP_OPTIONS="$DHCP_OPTIONS -N"
        [ "${DHCP_KEEPGW[$i]}" = "yes" ] && DHCP_OPTIONS="$DHCP_OPTIONS -G"
        [ ${DHCP_IPADDR[$i]} ] && DHCP_OPTIONS="$DHCP_OPTIONS -s ${DHCP_IPADDR[$i]}"
        echo "Polling for DHCP server on interface ${1}:"
        # If you set a timeout, you get one, even if the kernel doesn't think that
        # your device is connected, in case /sys isn't right (which it usually isn't
        # except right after the device is loaded, when it usually is):
        #### (start commented out)
        # This is deactivated for now since the kernel has been returning incorrect
        # results concerning whether the interface carrier is detected.
        #if [ "${DHCP_TIMEOUT[$i]}" = "" ]; then
        #  ifconfig ${1} up && sleep 1
        #  CONNSTATUS="$(cat /sys/class/net/${1}/carrier 2> /dev/null)"
        #  ifconfig ${1} down
        #  if [ "$CONNSTATUS" = "0" ]; then
        #    # The kernel has just told us the cable isn't even plugged in, but we will
        #    # give any DHCP server a short chance to reply anyway:
        #    echo "No carrier detected on ${1}.  Reducing DHCP timeout to 10 seconds."
        #    DHCP_TIMEOUT[$i]=10
        #  fi
        #fi
        #### (end commented out)
        # 30 seconds should be a reasonable default DHCP timeout.  60 was too much.  :-)
        echo "/etc/rc.d/rc.inet1:  /sbin/dhcpcd -d -t ${DHCP_TIMEOUT[$i]:-30} ${DHCP_OPTIONS} ${1}" | $LOGGER
        /sbin/dhcpcd -d -t ${DHCP_TIMEOUT[$i]:-30} ${DHCP_OPTIONS} ${1}
      else # bring up interface using a static IP address
        if [ ! "${IPADDR[$i]}" = "" ]; then # skip unconfigured interfaces
          # Determine broadcast address from the IP address and netmask:
          BROADCAST[$i]=`/bin/ipmask ${NETMASK[$i]} ${IPADDR[$i]}|cut -f1 -d' '`
          # Set up the network card:
          echo "/etc/rc.d/rc.inet1:  /sbin/ifconfig ${1} ${IPADDR[$i]} broadcast ${BROADCAST[$i]} netmask ${NETMASK[$i]}" | $LOGGER
          /sbin/ifconfig ${1} ${IPADDR[$i]} broadcast ${BROADCAST[$i]} netmask ${NETMASK[$i]}
        else
          if [ "$DEBUG_ETH_UP" = "yes" ]; then
            echo "/etc/rc.d/rc.inet1:  ${1} interface is not configured in /etc/rc.d/rc.inet1.conf" | $LOGGER
          fi
        fi
      fi
    else
      if [ "$DEBUG_ETH_UP" = "yes" ]; then
        echo "/etc/rc.d/rc.inet1:  ${1} is already up, skipping" | $LOGGER
      fi
    fi 
  else
    if [ "$DEBUG_ETH_UP" = "yes" ]; then
      echo "/etc/rc.d/rc.inet1:  ${1} interface does not exist (yet)" | $LOGGER
    fi
  fi
}

# Function to take down a network interface:
if_down() {
  # Determine position 'i' of this interface in the IFNAME array:
  i=0
  while [ $i -lt $MAXNICS ]; do
    [ "${IFNAME[$i]}" = "${1}" ] && break
    i=$(($i+1))
  done
  if grep `echo ${1}: | cut -f 1 -d :`: /proc/net/dev 1> /dev/null ; then
    if [ "${USE_DHCP[$i]}" = "yes" ]; then
      echo "/etc/rc.d/rc.inet1:  /sbin/dhcpcd -k -d ${1}" | $LOGGER
      /sbin/dhcpcd -k -d ${1} 2> /dev/null || /sbin/ifconfig ${1} down
      sleep 1
    else
      echo "/etc/rc.d/rc.inet1:  /sbin/ifconfig ${1} down" | $LOGGER
      /sbin/ifconfig ${1} down
    fi
    if [ -x /etc/rc.d/rc.wireless ]; then
      . /etc/rc.d/rc.wireless ${1} stop # Kill wireless daemons if any.
    fi
  fi
}

#####################
# GATEWAY FUNCTIONS #
#####################

# Function to bring up the gateway if there is not yet a default route:
gateway_up() {
  if ! /sbin/route -n | grep "^0.0.0.0" 1> /dev/null ; then
    if [ ! "$GATEWAY" = "" ]; then
      echo "/etc/rc.d/rc.inet1:  /sbin/route add default gw ${GATEWAY} metric 1" | $LOGGER
      /sbin/route add default gw ${GATEWAY} metric 1 2>&1 | $LOGGER
    fi
  fi
}

# Function to take down an existing default gateway:
gateway_down() {
  if /sbin/route -n | grep "^0.0.0.0" 1> /dev/null ; then
    echo "/etc/rc.d/rc.inet1:  /sbin/route del default" | $LOGGER
    /sbin/route del default
  fi
}

# Function to start the network:
start() {
  lo_up
  for i in ${IFNAME[@]} ; do
    if_up $i
  done
  gateway_up
}

# Function to stop the network:
stop() {
  gateway_down
  for i in ${IFNAME[@]} ; do
    if_down $i
  done
  lo_down
}


############
### MAIN ###
############

case "$1" in
'start') # "start" brings up all configured interfaces:
  start
  ;;
'stop') # "stop" takes down all configured interfaces:
  stop
  ;;
'restart') # "restart" restarts the network:
  stop
  start
  ;;
*_start) # Example: "eth1_start" will start the specified interface 'eth1'
  INTERFACE=`echo $1 | /bin/cut -d '_' -f 1`
  if_up $INTERFACE
  gateway_up
  ;;
*_stop) # Example: "eth0_stop" will stop the specified interface 'eth0'
  INTERFACE=`echo $1 | /bin/cut -d '_' -f 1`
  if_down $INTERFACE
  ;;
*_restart) # Example: "wlan0_restart" will take 'wlan0' down and up again
  INTERFACE=`echo $1 | /bin/cut -d '_' -f 1`
  if_down $INTERFACE
  sleep 1
  if_up $INTERFACE
  gateway_up
  ;;
'up') # "up" does the same thing as "start"
  start
  ;;
'down') # "down" does the same thing as "stop"
  stop
  ;;
*_up) # "*_up" does the same thing as "*_start"
  INTERFACE=`echo $1 | /bin/cut -d '_' -f 1`
  if_up $INTERFACE
  gateway_up
  ;;
*_down) # "*_down" does the same thing as "*_stop"
  INTERFACE=`echo $1 | /bin/cut -d '_' -f 1`
  if_down $INTERFACE
  ;;
*) # The default is to bring up all configured interfaces:
  start
esac

# End of /etc/rc.d/rc.inet1

find: /proc/3344/net: Invalid argument

# ls -la /proc/3344/net
/bin/ls: reading directory /proc/3344/net: Invalid argument
total 0

# ls -la /proc/3344/
/bin/ls: cannot read symbolic link /proc/3344/cwd: No such file or directory
/bin/ls: cannot read symbolic link /proc/3344/root: No such file or directory
/bin/ls: cannot read symbolic link /proc/3344/exe: No such file or directory
total 0
dr-xr-xr-x   7 root root 0 2009-11-18 13:15 ./
dr-xr-xr-x 138 root root 0 2009-11-18 10:14 ../
dr-xr-xr-x   2 root root 0 2009-11-18 16:10 attr/
-r--------   1 root root 0 2009-11-18 16:10 auxv
--w-------   1 root root 0 2009-11-18 16:10 clear_refs
-r--r--r--   1 root root 0 2009-11-18 13:15 cmdline
-rw-r--r--   1 root root 0 2009-11-18 16:10 coredump_filter
lrwxrwxrwx   1 root root 0 2009-11-18 16:10 cwd
-r--------   1 root root 0 2009-11-18 16:10 environ
lrwxrwxrwx   1 root root 0 2009-11-18 16:10 exe
dr-x------   2 root root 0 2009-11-18 16:10 fd/
dr-x------   2 root root 0 2009-11-18 16:10 fdinfo/
-r--------   1 root root 0 2009-11-18 16:10 limits
-r--r--r--   1 root root 0 2009-11-18 16:10 maps
-rw-------   1 root root 0 2009-11-18 16:10 mem
-r--r--r--   1 root root 0 2009-11-18 16:10 mountinfo
-r--r--r--   1 root root 0 2009-11-18 16:10 mounts
-r--------   1 root root 0 2009-11-18 16:10 mountstats
dr-xr-xr-x   2 root root 0 2009-11-18 16:10 net/
-rw-r--r--   1 root root 0 2009-11-18 16:10 oom_adj
-r--r--r--   1 root root 0 2009-11-18 16:10 oom_score
-r--------   1 root root 0 2009-11-18 16:10 pagemap
lrwxrwxrwx   1 root root 0 2009-11-18 16:10 root
-r--r--r--   1 root root 0 2009-11-18 16:10 smaps
-r--r--r--   1 root root 0 2009-11-18 13:15 stat
-r--r--r--   1 root root 0 2009-11-18 16:10 statm
-r--r--r--   1 root root 0 2009-11-18 13:15 status
dr-xr-xr-x   3 root root 0 2009-11-18 16:10 task/
-r--r--r--   1 root root 0 2009-11-18 16:10 wchan

/proc/3344# rm -rf exe
rm: cannot remove `exe': Permission denied

# ps -A | grep dhcp*
 3353 ?        00:00:00 dhclient