Commit Graph

18 Commits

Author SHA1 Message Date
Denis Vlasenko
b76b9a4328 udhcpc: filter unwanted packets in kernel
(Cristian Ionescu-Idbohrn <cristian.ionescu-idbohrn@axis.com>)
2008-01-25 22:46:34 +00:00
Denis Vlasenko
b539c8452f dhcp: heed TODO item - divorced options from their string descriptions
code shrink while at it.

function                                             old     new   delta
dhcp_option_strings                                    -     258    +258
udhcp_run_script                                    1135    1174     +39
dhcp_option_lengths                                    -      11     +11
udhcp_add_simple_option                               93      92      -1
packet_num                                             4       -      -4
read_opt                                             746     739      -7
udhcp_option_lengths                                  11       -     -11
udhcpc_main                                         2590    2494     -96
dhcp_options                                         490      70    -420
------------------------------------------------------------------------------
(add/remove: 2/2 grow/shrink: 1/4 up/down: 308/-539)         Total: -231 bytes
   text    data     bss     dec     hex filename
 775309     929    9100  785338   bfbba busybox_old
 775098     929    9084  785111   bfad7 busybox_unstripped
2007-11-29 08:17:45 +00:00
Denis Vlasenko
35ff74676b dhcpc: let server know we don't like oversized packets.
add TODO comment
2007-11-28 19:23:12 +00:00
Denis Vlasenko
6884f665bd dhcp: stop using magic constants; use (htonl(CONST) != a) - it's smaller
function                                             old     new   delta
udhcp_get_packet                                     146     134     -12
get_raw_packet                                       368     353     -15
2007-11-23 00:08:54 +00:00
Denis Vlasenko
fbd2918f5c udhcp: MAC_BCAST_ADDR and blank_chaddr are in fact constant, move to rodata.
a few global variables reduced to smallints
function                                             old     new   delta
add_lease                                             75     227    +152
static.blank_chaddr                                    -      16     +16
MAC_BCAST_ADDR                                         -       6      +6
sockfd                                                 4       8      +4
udhcp_run_script                                    1153    1155      +2
state                                                  8       5      -3
listen_mode                                            4       1      -3
perform_release                                      152     148      -4
fd                                                     8       4      -4
blank_chaddr                                          16       -     -16
udhcpc_main                                         2518    2497     -21
.rodata                                           131864  131832     -32
oldest_expired_lease                                  61       -     -61
clear_lease                                          127       -    -127
------------------------------------------------------------------------------
(add/remove: 2/3 grow/shrink: 3/6 up/down: 180/-271)          Total: -91 bytes
2007-04-07 01:05:47 +00:00
Denis Vlasenko
5066473d41 udhcp: optionally support RFC3397 (by Gabriel L. Somlo <somlo@cmu.edu>) 2007-02-27 21:15:08 +00:00
Denis Vlasenko
c90c3f30a8 add "wpad" DHCP option. Spotted some optimization opportunities: -80 bytes 2006-11-23 12:57:49 +00:00
Denis Vlasenko
5a3395bc01 udhcp: fix indentation and style.
Eliminate (group) a lot of smallish *.h files
Remove lots of unneeded #includes
2006-11-18 19:51:32 +00:00
Denis Vlasenko
e175ff252f several fixes from openWRT project 2006-09-26 17:41:00 +00:00
"Robert P. J. Day"
63fc1a9e08 Standardize on the vi editing directives being on the first line. 2006-07-02 19:47:05 +00:00
Mike Frysinger
7031f62d9b add back in udhcp support 2006-05-08 03:20:50 +00:00
Mike Frysinger
787140df39 remove in place of external link 2006-03-23 23:44:29 +00:00
Paul Fox
b6f71645f4 move a couple of functions from common code (options.c) to udhcpd private
code (files.c) to make udhcpc a little smaller.
2005-09-22 19:03:24 +00:00
Eric Andersen
ad95373efc Use standard C99 types 2004-01-30 23:45:53 +00:00
Russ Dill
4a9e34c148 options is a pretty common symbol, bad idea to use as a global in udhcp when compiling into busybox 2003-12-15 22:09:36 +00:00
Russ Dill
1eb7a17b12 resync with udhcp cvs 2002-12-11 21:12:45 +00:00
Glenn L McGrath
6b5bd0e5ab Support using ip in udhcpc scripts.
Slightly modified version of patch by Bastian Blank
2002-12-08 22:17:54 +00:00
Russ Dill
61fb48930f added full udhcp integration 2002-10-14 21:41:28 +00:00