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38 Commits

Author SHA1 Message Date
Denys Vlasenko
2f1d13d56a examples/udhcp/udhcpd.conf: update 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2021-06-03 12:07:56 +02:00
Denys Vlasenko
1b367cbeda examples: remove /sbin/ prefixes, system should be configured with $PATH to find utilities 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-12-13 21:35:26 +01:00
Stefan Agner
62744efa47 examples/udhcp/simple.script: fix IPv6 support when using udhcpc 
The udhcpc script calls ip addr flush .. which flushes addresses
of any address family, including IPv6. However, busybox udhcpc is
IPv4 only and should not influence IPv6 addressing. Hence use ip
addr flush with family constraint.

The script particularly broke IPv6 SLAAC: Typically when udhcpc
calls the script the kernel already assigned the IPv6 link-local
address. The flush removes the link-local IPv6 address again and
prohibits proper IPv6 operation such as SLAAC since neighbor
discovery protocol relies on IPv6 link-local addressing.

Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
[Taken from https://git.openembedded.org/openembedded-core/commit/meta/recipes-core/busybox/files/simple.script?id=b77541dbb2f442e51842f9d24c8745a6df2d1478]
Signed-off-by: Quentin Schulz <quentin.schulz@streamunlimited.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2020-06-21 03:02:02 +02:00
Rolf Eike Beer
7f89ebe18f examples/udhcp/simple.script: print the filename actually changed 
Signed-off-by: Rolf Eike Beer <eb@emlix.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-09-12 12:06:46 +02:00
Denys Vlasenko
81a708393d examples/udhcp/simple.script: up interface on deconfig event 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-09-05 14:58:30 +02:00
Denys Vlasenko
a840884531 udhcpd: support per-client hostnames in static leases 
function                                             old     new   delta
read_staticlease                                     222     299     +77
add_server_options                                    92     154     +62
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 139/0)             Total: 139 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-05-16 11:18:49 +02:00
Rolf Eike Beer
7180d9ed86 examples/udhcp/simple.script: fix resolv.conf update if it is a dangling symlink 
If /etc/resolv.conf is a symlink to a tmpfs and the actual file does not
already exist, "readlink -f" will not detect it as symlink. Explicitely check
for that condition before and touch the file, making the other code work as
intended.

Signed-off-by: Rolf Eike Beer <eb@emlix.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-04-13 16:58:00 +02:00
Denys Vlasenko
edb74f4019 Update examples/udhcp/udhcpd.conf 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-01-15 13:19:01 +01:00
Jiří Prchal
47839ae679 examples/udhcp/simple.script: add possibility to use modern "ip" 
Script uses "ifconfig" only, not up-to-date so much.
This patch adds "ip" in condition if exists.

Signed-off-by: Jiří Prchal <jiri.prchal@aksignal.cz>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-10-30 12:05:03 +01:00
Denys Vlasenko
266f6f1973 udhcp: support string user options, closes 10946 
function                                             old     new   delta
udhcp_str2optset                                     536     628     +92
packed_usage                                       32757   32760      +3
udhcpc_main                                         2708    2692     -16
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/1 up/down: 95/-16)             Total: 79 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-04-13 13:27:52 +02:00
Denys Vlasenko
9c192e7f94 examples: make udhcpc script handle /32 netmasks 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2017-04-06 00:53:43 +02:00
Denys Vlasenko
2e66daca65 examples/udhcp: do not rewrite resolv.conf if no DNS servers. Closes 6788 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2014-01-13 13:38:53 +01:00
Mike Frysinger
bca5c556c4 udhcpc: use readlink rather than realpath 
The realpath utility requires all paths exist when canonicalizing
symlinks.  If /etc/resolv.conf points to a tmpfs, then it might
not exist initially.  Use `readlink -f` so that we follow all
symlinks that are available.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
 2013-03-12 10:48:09 -04:00
Mike Frysinger
9fed24c031 udhcpc: tweak math shell style with the metric var 
Some shells (like dash) are lame and omit the POSIX increment/decrement
feature (because it is listed as optional).  Tweak the shell script to
work in all POSIX variants.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
 2013-02-27 01:05:34 -05:00
Mike Frysinger
39b8fb41c5 udhcpc: support resolv.conf symlinks 
Often it is desirable to have /etc/ be on read-only storage (well, the
whole rootfs) but have things like /etc/resolv.conf be symlinks to a
writable location.  Tweak the simple script to support that.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
 2013-02-27 01:01:43 -05:00
Michael McTernan
7b57ff4436 udhcp: finish support of classless static routes 
function                                             old     new   delta
udhcp_str2optset                                     415     532    +117

Signed-off-by: Michael McTernan <Michael.McTernan.2001@cs.bris.ac.uk>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-12-16 17:05:52 +01:00
Denys Vlasenko
14b162f9ab tweak examples/udhcp/udhcpd.conf 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-05-04 21:17:23 +02:00
Nigel Hathaway
fb6b173ff7 udhcp: add FEATURE_UDHCP_8021Q option 
function                                             old     new   delta
dhcp_option_strings                                  217     237     +20
dhcp_optflags                                         64      68      +4

Signed-off-by: Nigel Hathaway <Nigel.Hathaway@ubiquisys.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-04-26 02:50:00 +02:00
Denys Vlasenko
f0b82142b2 *: fix unterminated last lines. no code changes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-07-26 12:26:04 +02:00
Denys Vlasenko
290346948d update examples/udhcp/udhcpd.conf 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-04-04 15:38:22 +02:00
Denys Vlasenko
2e7aa92836 udhcp: tweak udhcpd.conf example and comments. no code changes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-03-21 02:22:07 +01:00
Denys Vlasenko
e5ce91b41b udhcp: code shrink; disable time and log server options 
function                                             old     new   delta
add_server_options                                     -     100    +100
udhcp_add_simple_option                               92      90      -2
nobody_responds_to_arp                                88      85      -3
dhcp_options                                          66      62      -4
udhcp_add_option_string                              104      94     -10
udhcp_run_script                                     665     654     -11
dhcp_option_strings                                  203     188     -15
static.blank_chaddr                                   16       -     -16
send_ACK                                             211     180     -31
add_bootp_options                                     61       -     -61
udhcpd_main                                         1925    1846     -79
------------------------------------------------------------------------------
(add/remove: 1/2 grow/shrink: 0/8 up/down: 100/-232)         Total: -132 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-03-21 00:43:11 +01:00
Denys Vlasenko
87fa216e1e udhcpc: make it possible to disable vendor id; improve help text 
function                                             old     new   delta
init_packet                                          135     139      +4
packed_usage                                       26789   26786      -3
alloc_dhcp_option                                     67      63      -4
udhcpc_main                                         2467    2447     -20
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/3 up/down: 4/-27)             Total: -23 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-03-20 18:06:23 +01:00
Denys Vlasenko
0f62c4d065 udhcpd: remove five more options which do not make sense or not supported 
requestip, vendorclass, clientid are client-side variables,
          they do not make sense as udhcpd opts
dhcptype  is the packet type (not interesting, it's always 5)
userclass needs parser support in order to work

function                                             old     new   delta
dhcp_options                                          68      66      -2
read_opt                                             865     859      -6
dhcp_option_strings                                  253     203     -50
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-58)             Total: -58 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-03-20 07:12:21 +01:00
Denys Vlasenko
777706cb23 udhcp: remove support for some really old and odd options 
function                                             old     new   delta
dhcp_options                                          72      68      -4
dhcp_option_strings                                  271     253     -18

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-03-19 23:42:23 +01:00
Denys Vlasenko
7cc5a50465 chmod 755 some files in examples/* 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-07-23 21:30:30 +02:00
Denys Vlasenko
2b0e957808 examples/udhcp/udhcpd.conf: update 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-06-17 13:22:26 +02:00
Denys Vlasenko
c8ab67cad8 tftp: do not risk invoking Sorcerer's Apprentice syndrome 
examples/udhcp/simple.script: fix incorrect test for $1

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-05-10 23:27:43 +02:00
Denis Vlasenko
1b47bbdfa4 tweak example udhcp script 2009-04-21 00:17:00 +00:00
Denis Vlasenko
ea4f0847c3 update example udhcpc script 2009-04-16 20:04:09 +00:00
Denis Vlasenko
1d61416b5a sync examples to what actual actual code expects 2007-12-25 15:32:56 +00:00
Denis Vlasenko
f7be20e70c nameif: extended matching (Nico Erfurth <masta@perlgolf.de>) 
*: whitespace fixes

function                                             old     new   delta
prepend_new_eth_table                                  -     304    +304
nameif_main                                          620     684     +64
cc_macaddr                                            51       -     -51
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 1/0 up/down: 368/-51)           Total: 317 bytes
 2007-12-24 14:09:19 +00:00
Denis Vlasenko
3ef70d43ad adduser: trivial code movement 2006-12-26 17:37:38 +00:00
Eric Andersen
1aee3ff8bb Simon Poole writes: 
Erik,

Attached is a patch for the udhcpc sample scripts, to correct the order in
which routers are applied if the DHCP server provides more than one (as per
section 3.5 of RFC2132).

Apologies for not being on the mailing list and thanks for your continued
efforts.

Simon.
 2004-10-13 07:18:05 +00:00
Eric Andersen
abf58d6ba5 Wade Berrier writes: 
Hello,

Here's a patch for a first attempt at static leases for udhcpd.
Included in the tarball are 2 files (static_leases.c, static_leases.h)
and a patch against the latest cvs.

In the config file you can configure static leases with the following
format:

static_lease 00:60:08:11:CE:4E 192.168.0.54
static_lease 00:60:08:11:CE:3E 192.168.0.44

Comments/suggestions/improvements are welcome.


Wade
 2004-10-08 08:49:26 +00:00
Eric Andersen
c7bda1ce65 Remove trailing whitespace. Update copyright to include 2004. 2004-03-15 08:29:22 +00:00
Russ Dill
920c1e8d6c another sync to udhcp cvs 2002-12-11 21:39:13 +00:00
Russ Dill
61fb48930f added full udhcp integration 2002-10-14 21:41:28 +00:00