+++ /dev/null
-udhcp server/client package
------------------------
-
-Russ Dill <Russ.Dill@asu.edu>
-Matthew Ramsay <matthewr@moreton.com.au>
-Chris Trew <christ@moreton.com.au>
-
-Other Credits:
---------------
-Moreton Bay (http://www.moretonbay.com/)
-Vladimir Oleynik <dzo@simtrea.ru> Size optimizations
-
-
+++ /dev/null
- GNU GENERAL PUBLIC LICENSE
- Version 2, June 1991
-
- Copyright (C) 1989, 1991 Free Software Foundation, Inc.
- 675 Mass Ave, Cambridge, MA 02139, USA
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-The hypothetical commands `show w' and `show c' should show the appropriate
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- `Gnomovision' (which makes passes at compilers) written by James Hacker.
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-
-This General Public License does not permit incorporating your program into
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-library. If this is what you want to do, use the GNU Library General
-Public License instead of this License.
+++ /dev/null
-0.9.9 (pending)
-+ Various other size optimizations (Vladimir)
-+ Change strerror(errno) to %m (Vladimir N. Oleynik <dzo@simtreas.ru>)
-+ Fixed a little endian problem in mton (Bastian Blank <waldi@debian.org>)
-+ Fixed a arpping alignment problem (Rui He <rhe@3eti.com>)
-+ Added sanity check for max_leases (udhcp bug #1285) (me)
-+ Finally got rid of the trailing space in enviromental vars (me)
-+ added an new enviromental variable: $mask. It contains the number
- of subnet bits for tools like ip route that require it.
- (Bastian Blank <waldi@debian.org>, me)
-
-0.9.8 (021031)
-+ split up README files (me)
-+ use /dev/urandom to seed xid's (instead of time(0)) (me)
-+ fixed renew behavior (me)
-+ udhcp now fits nicely into busybox
- (Glenn McGrath <bug1@iinet.net.au> as well as myself)
-+ updated client manpage (me)
-+ both client and server now use sockets for signal handling,
- hopefully, this will be the last needed change in signal
- handling, I'm fairly certain all the possible races are now
- closed. (me)
-+ The server now restarts the auto_time timer when it receives
- a SIGUSR1 (write out config file). (me)
-+ Improve signal handling (David Poole)
-+ Fix to config file parsing (Matt Kraai)
-+ Fix load lease logic (me)
-+ Fix clear_lease logic (me)
-+ -h is now an alias for -H (udhcp bug #1253)
-+ Shorter timeout on not receiving offers (me)
-+ Improved signal behavior by client (me)
-+ Would never assign end address (Keith Smith <keith@ksmith.com>)
-+ Was improperly reporting yiaddr as siaddr (ben-udhcp@bdlow.net)
- udhcp bug#1256
-+ Fixed reading of client id (David Poole <davep@portsmith.com>)
-+ change sys_errlist[] to strerror() as it aparently doesn't exist
- (Erik Andersen <andersee@codepoet.org>)
-+ fixed get_raw_packet so it returns -2 on non fatal errors
- (Ted Lemon <Ted.Lemon@nominum.com>)
-+ Improved (hopefully) NAKing behavior (me)
-+ Added -b option (Jouni Malinen)
-+ Compute checksums correctly on big endian hosts
- (Jouni Malinen <jkmaline@cc.hut.fi>)
-
-0.9.7 (020526)
-+ Use add_lease in read_leases, sanitizes leases more, and clears out exprired
- ones if there is no more room (me)
-+ Moved udhcpd.leases to /var/lib/misc/udhcpd.leases (Debian bug #147747)
-+ Change (obsolete) AF_INET in arping.c to PF_PACKET (Debian bug #127049)
-+ Added script hook for DHCPNAK (nak), as well as providing the message option
- (me)
-+ Generate the paramaters request list by seeing what options in options.c are
- ored with OPTION_REQ in options.c
-+ Fix dhcp renew forgetfullness on client (bug #1230)
-+ Fix dhcp release bug on client (bug #1231)
-+ Set option request list for DHCP renew (bug #1233)
-+ Set BOOTREQUEST/REPLY properly
-+ Change client-identifier field to popularly expected behavior (me)
-+ Only reopen port on errors (me)
-+ Change fork/close/setsid structures to daemon() (me)
-+ Allow user to specify udhcpd config file at run time (Steven, me)
-+ Write pidfile after changing it (Steven CTR Carr <Steven.CTR.Carr@tc.faa.gov>)
-+ Added env var docs to udhcpc man page (Matt)
-+ Standardized lowercase udhcp in documentation (me)
-+ Accept packets without a UDP checksum (me)
-+ Accept packets with extra garbage (me)
-+ Better error handling in files.c (me)
-+ Combined read_interface function to reduce COMBINED_BINARY size (me)
-+ Drop calc_length(), some servers choke on smaller packets (me)
-+ Try to clean some fat out (me)
-
-0.9.6 (011001)
-+ Added bootp paramaters to server (me)
-+ Added bootp paramaters to client (me)
-+ Added vendor id to client (me)
-+ Better pidfile handling in client and server (me)
-+ Added man pages (Matt Kraai <kraai@alumni.carnegiemellon.edu>)
-
-0.9.5 (010914)
-+ Fixed $HOME and $PATH env passing (me)
-+ Fixed client to only listen for raw packets on correct interface (me)
-+ added --quit,-q option to quit after a lease is obtained (me)
-+ Fixed 100% CPU utilization by client when interface is down (me)
-
-0.9.4 (010827)
-+ Force broadcast to broken clients that request unicast (ie, MSFT 98)
-+ Make install rules (Adam J. Richter <adam@yggdrasil.com>)
-+ One scripts, instead of many (Adam)
-+ Removed script paramater info files (env vars only) (Adam)
-+ Controlling of forking behavior in client (Adam)
-+ General script.c/dhcpc.c cleanups (Adam)
-
-0.9.3 (010820)
-+ Increased debugging verbosity (me)
-+ Cut trailing whitespace when reading config file (me)
-+ added hostname option to client (me)
-+ fixed a strncpy bug in script.c (me)
-+ fixed a leaky socket in dhcpc.c (me)
-+ fixed a leaky socket in dhcpd.c (me)
-
-0.9.2 (010810)
-+ Added raw sockets to client (me)
-+ alignment fixes (Mark Huang)
-+ compiler warning fixes (Mark Huang)
-+ client now sends parameter list (Mark Huang/me)
-+ added ipttl option
-+ Does now not request broadcast packets
-
-0.9.1 (010806)
-+ Added udhcpc client
-+ reorganized functions/files
-+ listening socket now only binds to one interface
-
-0.9.0 (010720) Major rewrite, current changes, goals:
-+ should not segfault on bogus packets.
-+ Options can be read from sname and file fields.
-+ supports all DHCP messages (release, decline, inform).
-+ IP block is now specified by a range of IP's.
-+ Leases file now contains lease time (relative, or absolute).
-+ Just about any DHCP option is now supported.
-+ DNS entries are no longer read from resolv.conf
-+ Lease file can be written periodically when the process receives a SIGUSR1
-+ arpping should be supported on all arches.
-+ support for DHCP relays.
-+ DHCP messages can be unicast if the client requests it.
-+ many, many, many other things.
-
-0.8.29 (000323)
-+ stable(?) release
-
-
-0.8.28 (000323)
-+ removed alarm as it was causing server to go down
-+ removed debugging
-+ break down dhcpd.c into manageable files
-
-
-0.8.27 (000221)
-+ OFFER also sends gateway/subnet (for picky dhcp clients)
-+ multiple DNS now handled from resolv.conf if available
-+ multiple WINS (from dhcpd.conf)
-
-0.8.25 (000120)
-+ now compiles *and* runs on a generic linux system
- tested with a windows 98 client and the sample config
- files in the samples directory.
-
-0.8.24 (000117)
-+ makeiplist tool has basic functionality in place
-+ new sample config files
-+ route add -host 255.255.255.255 dev eth0 added for generic linux
-
-0.8.23 (000117)
-+ NETtel specific fix for ignoring dhcp requests on 2nd interface
-
-0.8.22 (000113)
-+ minor changes to compile under a generic linux system
-+ minor config file location changes for a generic linux system
-+ makeiplist fixes.. still incomplete.. but etting closer
-
-0.8.21 (000113)
-+ now sends the correct server ip instead of hardcoded value
-+ minor debugging fixes for critical messages
-
-0.8.20 (000106)
-+ cut out dhcp server checking.. this was causing dialout ppp
- sessions with idle time set to never time out.
-+ also removed the 10 second pause before launching.. as this
- was originally to stop it replying to a dhcp client
- on a NETtel which was really a bad way to do it in the
- first place :-)
-
-0.8.19 (000104)
-+ fixes for route add -host on a machine that needs to run both
- a DHCP client and server (dual eth box)
-
-0.8.18 (991220)
-
-+ Race conditions fixed by disabling alarm whilst the server is busy
-+ Fixed continous clearing of the offered array so that it is only cleared
- when it is dirty - (could change the position of when dirty is set)
-
-0.8.17 (991212)
-
-- has problems clearing out the offered array
-
-0.8.16 (991203)
-+ Non blocking error is changes to informational as it is not really
- an error
-
-0.8.15 (991129)
-+ Servs the dns field 3 times (Nettel only) so that windows servers
- dont time out whilst nettel is booting
-
-0.8.14 (991126)
-+ added owner check for the offered array so clean out time may be
- increased
-+ added new func to print out chadder/MAC
-
-0.8.13 (991125)
-+ added win95 support (w95 changed xid halfway through conversation)
-+ had to change the offered array to use hardware addresses instead of xid
-+ fixed re offered bug
-+ added more debugging
-
-0.8.12 (991111)
-+ debugging was real bad.. cleaned up a bit.. needs overhaul
-
-
-0.8.11 (991110)
-+ fixed up offeredAddr array to actually be used now!! offeredAddr is
- used to see if another simultaneous connecting client was offered
- an address that we are about to offer another client (multiple
- client bug)
-+ removed re_offered variable as it breaks multiple client support
-+ added lease time to ACK -- doesn't work if in OFFER
-+ decreased internal array clear delay to 60 seconds
-+ minor findAddr bug (returning -1 instead of 0)
-+ if clients xid already in offeredAddr offer the same addr and don't add a
- new addr to offered (caused by a client issuing multiple DISCOVERs)
-
-0.8.10 (991105)
-+ \n bug in arpping
-+ minor debugging changes (removed printfs etc)
-+ started browseiplist (not finished)
-
-0.8.9 (19991105)
-+ fixed options array size bug (options were cut off)
-
-0.8.8 (19991105)
-+ ignores requests from dhcpcd on the same machine
-
-0.8.7 (19991104)
-+ don't die if we can't bind to search for existing DHCP server
-+ slightly more verbose syslogging
-
-0.8.6 (19991103)
-+ added makeiplist (not finished -- core dumps)
-+ minor debug changes
-
-0.8.5 (19991029)
-+ exits if another DHCP server is already on the network
-+ added Linux Makefile
-
-0.8.4 (19991026)
-+ minor bug fix in findaddr preventing an addr being found
-
-0.8.3 (19991025)
-+ fixed up debugging
-+ minor hwaddr issues
-
-0.8.2 (19991022)
-+ free leases (new arpping code from dhcpcd)
-+ fixed bug where crashes if no leases/iplist file
-+ syslogging and debugging switch
-+ serve DNS from resolv.conf
-+ fixed bug where new lease added if same mac offered
-+ now checks the ip is free b4 offering
-+ now supports wins server
-
+++ /dev/null
-ifneq ($(wildcard ../../networking/Config.in),)
-include Makefile.busybox
-else
-include Makefile.udhcp
-endif
+++ /dev/null
-# udhcp makefile
-
-DESTDIR =
-prefix = /usr
-SBINDIR = /sbin
-USRSBINDIR = $(DESTDIR)$(prefix)/sbin
-USRBINDIR = $(DESTDIR)$(prefix)/bin
-USRSHAREDIR = $(DESTDIR)$(prefix)/share
-
-# Uncomment this to get a shared binary. Call as udhcpd for the server,
-# and udhcpc for the client
-#COMBINED_BINARY=1
-
-# Uncomment this for extra output and to compile with debugging symbols
-#UDHCP_DEBUG=1
-
-# Uncomment this to output messages to syslog, otherwise, messages go to stdout
-#UDHCP_SYSLOG=1
-
-# Set to the prefix of your cross-compiler
-#CROSS_COMPILE=arm-uclibc-
-
-
-#---------------------------------------------------#
-# You should not have to change anything below here #
-#---------------------------------------------------#
-
-CC = $(CROSS_COMPILE)gcc
-LD = $(CROSS_COMPILE)gcc
-INSTALL = install
-
-OBJS_SHARED = common.o options.o packet.o pidfile.o signalpipe.o socket.o
-DHCPD_OBJS = dhcpd.o arpping.o files.o leases.o serverpacket.o static_leases.o
-DHCPC_OBJS = dhcpc.o clientpacket.o clientsocket.o script.o
-
-ifdef COMBINED_BINARY
-EXEC1 = udhcpd
-OBJS1 = $(DHCPD_OBJS) $(DHCPC_OBJS) $(OBJS_SHARED) frontend.o
-CFLAGS += -DCOMBINED_BINARY
-else
-EXEC1 = udhcpd
-OBJS1 = $(DHCPD_OBJS) $(OBJS_SHARED)
-
-EXEC2 = udhcpc
-OBJS2 = $(DHCPC_OBJS) $(OBJS_SHARED)
-endif
-
-EXEC3 = dumpleases
-OBJS3 = dumpleases.o
-
-BOOT_PROGRAM = udhcpc
-DAEMON = udhcpd
-COMMAND = dumpleases
-
-ifdef UDHCP_SYSLOG
-CFLAGS += -DUDHCP_SYSLOG
-endif
-
-CFLAGS += -W -Wall -Wstrict-prototypes -D_GNU_SOURCE
-
-ifdef UDHCP_DEBUG
-CFLAGS += -g -DUDHCP_DEBUG
-STRIP=true
-else
-CFLAGS += -Os -fomit-frame-pointer
-STRIP=$(CROSS_COMPILE)strip
-endif
-
-all: $(EXEC1) $(EXEC2) $(EXEC3)
- $(STRIP) --remove-section=.note --remove-section=.comment $(EXEC1) $(EXEC2) $(EXEC3)
-
-$(OBJS1) $(OBJS2) $(OBJS3): *.h Makefile
-$(EXEC1) $(EXEC2) $(EXEC3): Makefile
-
-.c.o:
- $(CC) -c $(CFLAGS) $<
-
-$(EXEC1): $(OBJS1)
- $(LD) $(CFLAGS) $(LDFLAGS) $(OBJS1) -o $(EXEC1)
-
-$(EXEC2): $(OBJS2)
- $(LD) $(CFLAGS) $(LDFLAGS) $(OBJS2) -o $(EXEC2)
-
-$(EXEC3): $(OBJS3)
- $(LD) $(CFLAGS) $(LDFLAGS) $(OBJS3) -o $(EXEC3)
-
-
-install: all
- mkdir -p $(USRSBINDIR) $(USRBINDIR)
- $(INSTALL) -m 755 $(DAEMON) $(USRSBINDIR)
- $(INSTALL) -m 755 $(COMMAND) $(USRBINDIR)
-ifdef COMBINED_BINARY
- ln -sf $(DAEMON) $(USRSBINDIR)/$(BOOT_PROGRAM)
-else
- $(INSTALL) -m 755 $(BOOT_PROGRAM) $(USRSBINDIR)
-endif
- mkdir -p $(USRSHAREDIR)/udhcpc
- for name in bound deconfig nak renew script ; do \
- $(INSTALL) -m 755 samples/sample.$$name \
- $(USRSHAREDIR)/udhcpc/default.$$name ; \
- done
- mkdir -p $(USRSHAREDIR)/man/man1
- $(INSTALL) -m 644 dumpleases.1 $(USRSHAREDIR)/man/man1
- mkdir -p $(USRSHAREDIR)/man/man5
- $(INSTALL) -m 644 udhcpd.conf.5 $(USRSHAREDIR)/man/man5
- mkdir -p $(USRSHAREDIR)/man/man8
- $(INSTALL) -m 644 udhcpc.8 udhcpd.8 $(USRSHAREDIR)/man/man8
-
-clean:
- -rm -f udhcpd udhcpc dumpleases *.o *.a core
+++ /dev/null
-udhcp server/client package readme
--------------------------
-
-The udhcp server/client package is primarily geared towards embedded
-systems. It does however, strive to be fully functional, and RFC
-compliant.
-
-
-compile time options
--------------------
-
-The Makefile contains three of the compile time options:
-
- UDHCP_DEBUG: If UDHCP_DEBUG is defined, udhcpd will output extra
- debugging output, compile with -g, and not fork to the background when
- run.
- UDHCP_SYSLOG: If UDHCP_SYSLOG is defined, udhcpd will log all its
- messages syslog, otherwise, it will attempt to log them to stdout.
-
- COMBINED_BINARY: If COMBINED_BINARY is define, one binary, udhcpd,
- is created. If called as udhcpd, the dhcp server will be started.
- If called as udhcpc, the dhcp client will be started.
-
-dhcpd.h contains the other three compile time options:
-
- LEASE_TIME: The default lease time if not specified in the config
- file.
-
- LEASES_FILE: The default file for storing leases.
-
- DHCPD_CONFIG_FILE: The defualt config file to use.
-
-options.c contains a set of dhcp options for the client:
-
- name[10]: The name of the option as it will appear in scripts
-
- flags: The type of option, as well as if it will be requested
- by the client (OPTION_REQ)
-
- code: The DHCP code for this option
-
-
-busybox drop-in
---------------
-udhcp is now a drop-in component for busybox (http://busybox.net).
-To update busybox to the latest revision, simply do a:
-
-cp *.[ch] README AUTHORS COPYING ChangeLog TODO \
- <busybox_source>/networking/udhcp
-
-The only two files udhcp does not provide are config.in and
-Makefile.in, so these may need to be updated from time to time.
-
+++ /dev/null
-udhcp lease dump (dumpleases)
-----------------------------
-
-dumpleases displays the leases written out by the udhcpd server. Lease
-times are stored in the file by time remaining in lease (for systems
-without clock that works when there is no power), or by the absolute
-time that it expires in seconds from epoch. dumpleases accepts the
-following command line options:
-
--a, --absolute Interpret lease times as expiration time.
--r, --remaining Interpret lease times as remaining time.
--f, --file=FILE Read lease information from FILE.
--h, --help Display help.
-
-Note that if udhcpd has not written a leases file recently, the output
-of may not be up to date.
-
+++ /dev/null
-udhcp client (udhcpc)
---------------------
-
-The udhcp client negotiates a lease with the DHCP server and notifies
-a set of scripts when a leases is obtained or lost.
-
-
-command line options
--------------------
-
-The command line options for the udhcp client are:
-
--c, --clientid=CLIENTID Set client identifier. Type is first char.
--C, --clientid-none Suppress default client identifier
--V, --vendorclass=CLASSID Set vendor class identifier
--H, --hostname=HOSTNAME Client hostname
--h, Alias for -H
--F, --fqdn=FQDN Client fully qualified domain name
--f, --foreground Do not fork after getting lease
--b, --background Fork to background if lease cannot be
- immediately negotiated.
--i, --interface=INTERFACE Interface to use (default: eth0)
--n, --now Exit with failure if lease cannot be
- immediately negotiated.
--p, --pidfile=file Store process ID of daemon in file
--q, --quit Quit after obtaining lease
--r, --request=IP IP address to request (default: none)
--s, --script=file Run file at dhcp events (default:
- /usr/share/udhcpc/default.script)
--t, --retries=NUM Send up to NUM request packets
--v, --version Display version
-
-
-If the requested IP address cannot be obtained, the client accepts the
-address that the server offers.
-
-
-udhcp client scripts
--------------------
-
-When an event occurs, udhcpc calls the action script. udhcpc never does
-any configuration of the network interface itself, but instead relies on
-a set of scripts. The script by default is
-/usr/share/udhcpc/default.script but this can be changed via the command
-line arguments. The three possible arguments to the script are:
-
- deconfig: This argument is used when udhcpc starts, and
- when a leases is lost. The script must put the interface in an
- up, but deconfigured state, ie: ifconfig $interface 0.0.0.0.
-
- bound: This argument is used when udhcpc moves from an
- unbound, to a bound state. All of the paramaters are set in
- enviromental variables, The script should configure the interface,
- and set any other relavent parameters (default gateway, dns server,
- etc).
-
- renew: This argument is used when a DHCP lease is renewed. All of
- the paramaters are set in enviromental variables. This argument is
- used when the interface is already configured, so the IP address,
- will not change, however, the other DHCP paramaters, such as the
- default gateway, subnet mask, and dns server may change.
-
- nak: This argument is used with udhcpc receives a NAK message.
- The script with the deconfig argument will be called directly
- afterwards, so no changes to the network interface are neccessary.
- This hook is provided for purely informational purposes (the
- message option may contain a reason for the NAK).
-
-The paramaters for enviromental variables are as follows:
-
- $HOME - The set $HOME env or "/"
- $PATH - the set $PATH env or "/bin:/usr/bin:/sbin:/usr/sbin"
- $1 - What action the script should perform
- interface - The interface this was obtained on
- ip - The obtained IP
- mask - The number of bits in the netmask (ie: 24)
- siaddr - The bootp next server option
- sname - The bootp server name option
- boot_file - The bootp boot file option
- subnet - The assigend subnet mask
- timezone - Offset in seconds from UTC
- router - A list of routers
- timesvr - A list of time servers
- namesvr - A list of IEN 116 name servers
- dns - A list of DNS server
- logsvr - A list of MIT-LCS UDP log servers
- cookiesvr - A list of RFC 865 cookie servers
- lprsvr - A list of LPR servers
- hostname - The assigned hostname
- bootsize - The length in 512 octect blocks of the bootfile
- domain - The domain name of the network
- swapsvr - The IP address of the client's swap server
- rootpath - The path name of the client's root disk
- ipttl - The TTL to use for this network
- mtu - The MTU to use for this network
- broadcast - The broadcast address for this network
- ntpsrv - A list of NTP servers
- wins - A list of WINS servers
- lease - The lease time, in seconds
- dhcptype - DHCP message type (safely ignored)
- serverid - The IP of the server
- message - Reason for a DHCPNAK
- tftp - The TFTP server name
- bootfile - The bootfile name
-
-additional options are easily added in options.c.
-
-
-note on udhcpc's random seed
----------------------------
-
-udhcpc will seed its random number generator (used for generating xid's)
-by reading /dev/urandom. If you have a lot of embedded systems on the same
-network, with no entropy, you can either seed /dev/urandom by a method of
-your own, or doing the following on startup:
-
-ifconfig eth0 > /dev/urandom
-
-in order to seed /dev/urandom with some data (mac address) unique to your
-system. If reading /dev/urandom fails, udhcpc will fall back to its old
-behavior of seeding with time(0).
-
-
-signals accepted by udhcpc
--------------------------
-
-udhcpc also responds to SIGUSR1 and SIGUSR2. SIGUSR1 will force a renew state,
-and SIGUSR2 will force a release of the current lease, and cause udhcpc to
-go into an inactive state (until it is killed, or receives a SIGUSR1). You do
-not need to sleep between sending signals, as signals received are processed
-sequencially in the order they are received.
-
-
-compile time options
--------------------
-
-options.c contains a set of dhcp options for the client:
-
- name[10]: The name of the option as it will appear in scripts
-
- flags: The type of option, as well as if it will be requested
- by the client (OPTION_REQ)
-
- code: The DHCP code for this option
-
+++ /dev/null
-udhcp server (udhcpd)
---------------------
-
-The only command line argument to udhcpd is an optional specifed
-config file. If no config file is specified, udhcpd uses the default
-config file, /etc/udhcpd.conf. Ex:
-
-udhcpd /etc/udhcpd.eth1.conf
-
-The udhcp server employs a number of simple config files:
-
-udhcpd.leases
-------------
-
-The udhcpd.leases behavior is designed for an embedded system. The
-file is written either every auto_time seconds, or when a SIGUSR1
-is received (the auto_time timer restarts if a SIGUSR1 is received).
-If you send a SIGTERM to udhcpd directly after a SIGUSR1, udhcpd will
-finish writing the leases file and wait for the aftermentioned script
-to be executed and finish before quiting, so you do not need to sleep
-between sending signals. When the file is written, a script can be
-optionally called to commit the file to flash. Lease times are stored
-in the file by time remaining in lease (for systems without clock
-that works when there is no power), or by the absolute time that it
-expires in seconds from epoch. In the remaining format, expired leases
-are stored as zero. The file is of the format:
-
-16 byte MAC
-4 byte ip address
-u32 expire time
-16 byte MAC
-4 byte ip address
-u32 expire time
-.
-etc.
-
-example: hexdump udhcpd.leases
-
-0000000 1000 c95a 27d9 0000 0000 0000 0000 0000
-0000010 a8c0 150a 0d00 2d29 5000 23fc 8566 0000
-0000020 0000 0000 0000 0000 a8c0 140a 0d00 4e29
-0000030
-
-
-udhcpd.conf
-----------
-
-The format is fairly simple, there is a sample file with all the
-available options and comments describing them in samples/udhcpd.conf
-
-compile time options
--------------------
-
-dhcpd.h contains the other two compile time options:
-
- LEASE_TIME: The default lease time if not specified in the config
- file.
-
- DHCPD_CONFIG_FILE: The defualt config file to use.
+++ /dev/null
-TODO
-----
-+ Check for valid IP, netmask, hostname, paths, strings, etc
-+ Integrade README.*'s with manpages
-+ using time(0) breaks if the system clock changes, find a portable solution
-+ make failure of reading functions revert to previous value, not the default
-+ sanity code for option[OPT_LEN]
-+ fix aliasing (ie: eth0:0)
-+ better standard linux distro support
-+ make sure packet generation works on a wide varitey of arches
-+ Interoperability testing
-+ Hooks within the DHCP server
- * Server notification when a lease is added/removed
-+ Additional bootp support in client/server
-+ Make serverid option in server configurable
-+ Possibly add failure message to DHCP NAK
+++ /dev/null
-.TH DUMPLEASES 1 2001-09-27 GNU/Linux "GNU/Linux Administrator's Manual"
-.SH NAME
-dumpleases \- display leases granted by udhcp server
-.SH SYNOPSIS
-.B dumpleases
-.RI [ OPTION ]...
-.SH DESCRIPTION
-Display the DHCP leases granted by
-.BR udhcpd (8).
-.SH OPTIONS
-.TP
-.BR \-a ,\ \-\-absolute
-Interpret lease times as expiration time.
-.TP
-.BI \-f\ FILE,\ \-\-file= FILE
-Read lease information from
-.IR FILE .
-.TP
-.BR \-h ,\ \-\-help
-Display help.
-.TP
-.BR \-r ,\ \-\-remaining
-Interpret lease times as remaining time.
-.SH FILES
-.TP
-.I /var/lib/misc/udhcpd.leases
-Lease information file.
-.SH SEE ALSO
-.BR udhcpd (8),
-.BR udhcpd.conf (5).
+++ /dev/null
-The files in this dir are:
-
- udhcpd.conf: A sample udhpcd configuration file.
-
- sample.script
- sample.nak
- sample.deconfig
- sample.bound
- sample.renew : sample scripts for the udhcpc client.
-
- simple.script : a simple sample script for the client.
+++ /dev/null
-#!/bin/sh
-# Sample udhcpc renew script
-
-RESOLV_CONF="/etc/udhcpc/resolv.conf"
-
-[ -n "$broadcast" ] && BROADCAST="broadcast $broadcast"
-[ -n "$subnet" ] && NETMASK="netmask $subnet"
-
-/sbin/ifconfig $interface $ip $BROADCAST $NETMASK
-
-if [ -n "$router" ]
-then
- echo "deleting routers"
- while /sbin/route del default gw 0.0.0.0 dev $interface
- do :
- done
-
- for i in $router
- do
- /sbin/route add default gw $i dev $interface
- done
-fi
-
-echo -n > $RESOLV_CONF
-[ -n "$domain" ] && echo domain $domain >> $RESOLV_CONF
-for i in $dns
-do
- echo adding dns $i
- echo nameserver $i >> $RESOLV_CONF
-done
\ No newline at end of file
+++ /dev/null
-#!/bin/sh
-# Sample udhcpc deconfig script
-
-/sbin/ifconfig $interface 0.0.0.0
+++ /dev/null
-#!/bin/sh
-# Sample udhcpc nak script
-
-echo Received a NAK: $message
+++ /dev/null
-#!/bin/sh
-# Sample udhcpc bound script
-
-RESOLV_CONF="/etc/udhcpc/resolv.conf"
-
-[ -n "$broadcast" ] && BROADCAST="broadcast $broadcast"
-[ -n "$subnet" ] && NETMASK="netmask $subnet"
-
-/sbin/ifconfig $interface $ip $BROADCAST $NETMASK
-
-if [ -n "$router" ]
-then
- echo "deleting routers"
- while /sbin/route del default gw 0.0.0.0 dev $interface
- do :
- done
-
- for i in $router
- do
- /sbin/route add default gw $i dev $interface
- done
-fi
-
-echo -n > $RESOLV_CONF
-[ -n "$domain" ] && echo domain $domain >> $RESOLV_CONF
-for i in $dns
-do
- echo adding dns $i
- echo nameserver $i >> $RESOLV_CONF
-done
\ No newline at end of file
+++ /dev/null
-#!/bin/sh
-# Currently, we only dispatch according to command. However, a more
-# elaborate system might dispatch by command and interface or do some
-# common initialization first, especially if more dhcp event notifications
-# are added.
-
-exec /usr/share/udhcpc/sample.$1
+++ /dev/null
-#!/bin/sh
-
-# udhcpc script edited by Tim Riker <Tim@Rikers.org>
-
-[ -z "$1" ] && echo "Error: should be called from udhcpc" && exit 1
-
-RESOLV_CONF="/etc/resolv.conf"
-[ -n "$broadcast" ] && BROADCAST="broadcast $broadcast"
-[ -n "$subnet" ] && NETMASK="netmask $subnet"
-
-case "$1" in
- deconfig)
- /sbin/ifconfig $interface 0.0.0.0
- ;;
-
- renew|bound)
- /sbin/ifconfig $interface $ip $BROADCAST $NETMASK
-
- if [ -n "$router" ] ; then
- echo "deleting routers"
- while route del default gw 0.0.0.0 dev $interface ; do
- :
- done
-
- for i in $router ; do
- route add default gw $i dev $interface
- done
- fi
-
- echo -n > $RESOLV_CONF
- [ -n "$domain" ] && echo search $domain >> $RESOLV_CONF
- for i in $dns ; do
- echo adding dns $i
- echo nameserver $i >> $RESOLV_CONF
- done
- ;;
-esac
-
-exit 0
+++ /dev/null
-# Sample udhcpd configuration file (/etc/udhcpd.conf)
-
-# The start and end of the IP lease block
-
-start 192.168.0.20 #default: 192.168.0.20
-end 192.168.0.254 #default: 192.168.0.254
-
-
-# The interface that udhcpd will use
-
-interface eth0 #default: eth0
-
-
-# The maximim number of leases (includes addressesd reserved
-# by OFFER's, DECLINE's, and ARP conficts
-
-#max_leases 254 #default: 254
-
-
-# If remaining is true (default), udhcpd will store the time
-# remaining for each lease in the udhcpd leases file. This is
-# for embedded systems that cannot keep time between reboots.
-# If you set remaining to no, the absolute time that the lease
-# expires at will be stored in the dhcpd.leases file.
-
-#remaining yes #default: yes
-
-
-# The time period at which udhcpd will write out a dhcpd.leases
-# file. If this is 0, udhcpd will never automatically write a
-# lease file. (specified in seconds)
-
-#auto_time 7200 #default: 7200 (2 hours)
-
-
-# The amount of time that an IP will be reserved (leased) for if a
-# DHCP decline message is received (seconds).
-
-#decline_time 3600 #default: 3600 (1 hour)
-
-
-# The amount of time that an IP will be reserved (leased) for if an
-# ARP conflct occurs. (seconds
-
-#conflict_time 3600 #default: 3600 (1 hour)
-
-
-# How long an offered address is reserved (leased) in seconds
-
-#offer_time 60 #default: 60 (1 minute)
-
-# If a lease to be given is below this value, the full lease time is
-# instead used (seconds).
-
-#min_lease 60 #defult: 60
-
-
-# The location of the leases file
-
-#lease_file /var/lib/misc/udhcpd.leases #defualt: /var/lib/misc/udhcpd.leases
-
-# The location of the pid file
-#pidfile /var/run/udhcpd.pid #default: /var/run/udhcpd.pid
-
-# Everytime udhcpd writes a leases file, the below script will be called.
-# Useful for writing the lease file to flash every few hours.
-
-#notify_file #default: (no script)
-
-#notify_file dumpleases # <--- usefull for debugging
-
-# The following are bootp specific options, setable by udhcpd.
-
-#siaddr 192.168.0.22 #default: 0.0.0.0
-
-#sname zorak #default: (none)
-
-#boot_file /var/nfs_root #default: (none)
-
-# The remainer of options are DHCP options and can be specifed with the
-# keyword 'opt' or 'option'. If an option can take multiple items, such
-# as the dns option, they can be listed on the same line, or multiple
-# lines. The only option with a default is 'lease'.
-
-#Examles
-opt dns 192.168.10.2 192.168.10.10
-option subnet 255.255.255.0
-opt router 192.168.10.2
-opt wins 192.168.10.10
-option dns 129.219.13.81 # appened to above DNS servers for a total of 3
-option domain local
-option lease 864000 # 10 days of seconds
-
-
-# Currently supported options, for more info, see options.c
-#opt subnet
-#opt timezone
-#opt router
-#opt timesvr
-#opt namesvr
-#opt dns
-#opt logsvr
-#opt cookiesvr
-#opt lprsvr
-#opt bootsize
-#opt domain
-#opt swapsvr
-#opt rootpath
-#opt ipttl
-#opt mtu
-#opt broadcast
-#opt wins
-#opt lease
-#opt ntpsrv
-#opt tftp
-#opt bootfile
+++ /dev/null
-.TH UDHCPC 8 2001-09-26 GNU/Linux "GNU/Linux Administrator's Manual"
-.SH NAME
-udhcpc \- very small DHCP client
-.SH SYNOPSIS
-.B udhcpc
-.RI [ OPTION ]...
-.SH DESCRIPTION
-The udhcp client negotiates a lease with the DHCP server and
-executes a script when it is obtained or lost.
-.SH OPTIONS
-.TP
-.BI \-c\ CLIENTID ,\ \-\-clientid= CLIENTID
-Send the client identifier
-.IR CLIENTID .
-.TP
-.BR -f ,\ \-\-foreground
-Do not fork after obtaining a lease.
-.TP
-.BI \-H\ HOSTNAME ,\ \-\-hostname= HOSTNAME
-Send the client hostname
-.IR HOSTNAME .
-.TP
-.BI \-h\ HOSTNAME
-Alias for -H
-.IR HOSTNAME .
-.TP
-.BI \-i\ INTERFACE ,\ \-\-interface= INTERFACE
-Configure
-.IR INTERFACE .
-.TP
-.BR -n ,\ \-\-now
-Exit with failure if a lease cannot be obtained.
-.TP
-.BI \-p\ FILE ,\ \-\-pidfile= FILE
-Write the process ID of the daemon to
-.IR FILE .
-.TP
-.BR -q ,\ \-\-quit
-Exit after obtaining a lease.
-.TP
-.BI \-r\ ADDRESS ,\ \-\-request= ADDRESS
-Request IP address
-.IR ADDRESS .
-.TP
-.BI \-s\ FILE ,\ \-\-script= FILE
-Use script
-.IR FILE .
-.TP
-.BR -v ,\ \-\-version
-Display version.
-.SH USAGE
-When an event occurs,
-.B udhcpc
-executes a script. There are four possible arguments to this
-script:
-.TP
-.B deconfig
-.B deconfig
-is used when
-.B udhcpc
-starts, and when a lease is lost. The script should put the
-interface in an up, but deconfigured, state.
-.TP
-.B bound
-.B bound
-is used when
-.B udhcpc
-moves from an unbound to a bound state. The script should
-configure the interface and set any other relevant parameters
-(e.g., default gateway, dns server, etc.).
-.TP
-.B renew
-.B renew
-is used when
-.B udhcpc
-when a lease is renewed. The interface is already
-configured, so the IP address will not change. Other parameters
-(e.g., default gateway, subnet mask, dns server) may.
-.TP
-.B nak
-.B nak
-is used when
-.B udhcpc
-receieves a NAK packet from the server. The
-enviromental variable
-.B $message
-will contain the reason for the
-NAK message if the server included one. Processing this message
-is optional, as the script will also be called with deconfig if
-need be.
-.PP
-Parameters are passed to the script via the following environment
-variables:
-.TP
-.B HOME
-The inherited HOME, or "/" if it is unset.
-.TP
-.B PATH
-The inherited PATH, or "/bin:/usr/bin:/sbin:/usr/sbin" if it is
-unset.
-.TP
-.B interface
-The interface.
-.TP
-.B ip
-The client IP address.
-.TP
-.B siaddr
-The BOOTP next server option.
-.TP
-.B sname
-The BOOTP server name option.
-.TP
-.B boot_file
-The BOOTP boot file option.
-.TP
-.B subnet
-The subnet mask.
-.TP
-.B timezone
-The timezone offset from UTC in seconds.
-.TP
-.B router
-The list of routers.
-.TP
-.B timesvr
-The list of time servers.
-.TP
-.B namesvr
-The list of IEN 116 name servers.
-.TP
-.B dns
-The list of DNS servers.
-.TP
-.B logsvr
-The list of MIT-LCS UDP log servers.
-.TP
-.B cookiesvr
-The list of RFC 865 cookie servers.
-.TP
-.B lprsvr
-The list of LPR servers.
-.TP
-.B hostname
-The host name.
-.TP
-.B bootsize
-The length in 512-octet blocks of the bootfile.
-.TP
-.B domain
-The domain name of the network.
-.TP
-.B swapsvr
-The client's swap server.
-.TP
-.B rootpath
-The path of the client's root dist.
-.TP
-.B ipttl
-The TTL.
-.TP
-.B mtu
-The MTU.
-.TP
-.B broadcast
-The broadcast address.
-.TP
-.B ntpsrv
-The list of NTP servers.
-.TP
-.B wins
-The list of WINS servers.
-.TP
-.B lease
-The lease time in seconds.
-.TP
-.B dhcptype
-The DHCP message type (safely ignored).
-.TP
-.B serverid
-The server IP address.
-.TP
-.B message
-Reason for a DHCPNAK.
-.TP
-.B tftp
-The TFTP server name.
-.TP
-.B bootfile
-The bootfile name.
-.SH FILES
-.TP
-.I /usr/share/udhcpc/default.script
-Script run when leases are obtained or lost.
-.SH NOTES
-.B udhcpc
-responds to the following signals:
-.TP
-.B SIGUSR1
-This signal causes
-.B udhcpc
-to renew the current lease or, if it does not have one, obtain a
-new lease.
-.TP
-.B SIGUSR2
-This signal caused
-.B udhcpc
-to release the current lease.
+++ /dev/null
-.TH UDHCPD 8 2001-09-27 GNU/Linux "GNU/Linux Administrator's Manual"
-.SH NAME
-udhcpd \- very small DHCP server
-.SH SYNOPSIS
-.B udhcpd
-.SH DESCRIPTION
-The udhcp server negotiates leases with DHCP clients.
-.SH FILES
-.TP
-.I /etc/udhcpd.conf
-Configuration file.
-.TP
-.I /var/lib/misc/udhcpd.leases
-Lease information file.
-.SH SEE ALSO
-.BR dumpleases (1),
-.BR udhcpd.conf (8).
+++ /dev/null
-.TH UDHCPD.CONF 5 2001-09-26 GNU/Linux "GNU/Linux Administrator's Manual"
-.SH NAME
-udhcpd.conf \- udhcp server configuration file
-.SH DESCRIPTION
-The file
-.I /etc/udhcpd.conf
-contains configuration information specific to the udhcp server.
-It should contain one configuration keyword per line, followed by
-appropriate configuration information.
-.SH OPTIONS
-.TP
-.BI start\ ADDRESS
-The starting address of the IP lease block is
-.IR ADDRESS .
-The default is
-.BR 192.168.0.20 .
-.TP
-.BI end\ ADDRESS
-The ending address of the IP lease block is
-.IR ADDRESS .
-The default is
-.BR 192.168.0.254 .
-.TP
-.BI interface\ INTERFACE
-The udhcp server should listen on
-.IR INTERFACE .
-The default is
-.BR eth0 .
-.TP
-.BI max_leases\ LEASES
-Offer at most
-.I LEASES
-leases (including those reserved by OFFERs, DECLINEs, and ARP
-conflicts). The default is
-.BR 254 .
-.TP
-.BI remaining\ REMAINING
-If
-.I REMAINING
-is
-.BR yes ,
-store the time remaining for each lease. If it is
-.BR no ,
-store the expiration time for each lease. The default is
-.BR yes .
-.TP
-.BI auto_time\ SECONDS
-Write the lease information to a file every
-.I SECONDS
-seconds. The default is
-.BR 7200 .
-.TP
-.BI decline_time\ SECONDS
-Reserve an IP for
-.I SECONDS
-seconds if a DHCP decline message is received. The default is
-.BR 3600 .
-.TP
-.BI conflict_time\ SECONDS
-Reserve an IP for
-.I SECONDS
-seconds if an ARP conflict occurs. The default is
-.BR 3600 .
-.TP
-.BI offer_time\ SECONDS
-Reserve an IP for
-.I SECONDS
-seconds if it is offered. The default is
-.BR 60 .
-.TP
-.BI min_lease\ SECONDS
-Reserve an IP for the full lease time if the lease to be given is less than
-.I SECONDS
-seconds. The default is
-.BR 60 .
-.TP
-.BI lease_file\ FILE
-Write the lease information to
-.IR FILE .
-The default is
-.BR /var/lib/misc/udhcpd.leases .
-.TP
-.BI pidfile\ FILE
-Write the process ID to
-.IR FILE .
-The default is
-.BR /var/run/udhcpd.pid .
-.TP
-.BI notify_file\ FILE
-Execute
-.I FILE
-after the lease information is written. By default, no file is executed.
-.TP
-.BI siaddr\ ADDRESS
-BOOTP specific option. The default is
-.BR 0.0.0.0 .
-.TP
-.BI sname\ NAME
-BOOTP specific option. There is no default.
-.TP
-.BI boot_file\ FILE
-BOOTP specific option. There is no default.
-.TP
-.BI option\ OPTION
-DHCP specific option.
-.RS
-.TP
-.BI subnet\ ADDRESS
-.TP
-.BI timezone\ OFFSET
-.TP
-.BI router\ ADDRESS...
-.TP
-.BI timesvr\ ADDRESS...
-.TP
-.BI namesvr\ ADDRESS...
-.TP
-.BI dns\ ADDRESS...
-.TP
-.BI logsvr\ ADDRESS...
-.TP
-.BI cookiesvr\ ADDRESS...
-.TP
-.BI lprsvr\ ADDRESS...
-.TP
-.BI hostname\ HOSTNAME
-.TP
-.BI bootsize\ SIZE
-.TP
-.BI domain\ DOMAIN
-.TP
-.BI swapsvr\ ADDRESS
-.TP
-.BI rootpath\ PATH
-.TP
-.BI ipttl\ TTL
-.TP
-.BI mtu\ MTU
-.TP
-.BI broadcast\ ADDRESS
-.TP
-.BI ntpsrv\ ADDRESS...
-.TP
-.BI wins\ ADDRESS...
-.TP
-.BI requestip\ ADDRESS
-.TP
-.BI lease\ SECONDS
-.TP
-.BI dhcptype\ TYPE
-.TP
-.BI serverid\ ADDRESS
-.TP
-.BI tftp\ FILE
-.TP
-.BI bootfile\ FILE
-The default for
-.B lease
-is
-.BR 864000 .
-There are no defaults for the other options.
-.RE
-.SH SEE ALSO
-.BR udhcpd (8).
projects / oweals / busybox.git / commitdiff