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c7dc79e71d
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49 Commits

Author SHA1 Message Date
Denys Vlasenko
c7dc79e71d udhcpd: untangle incredibly messy handling of DHCPREQUEST 
Also fixes attacks possible via DHCPDECLINE / DHCPRELEASE

function                                             old     new   delta
udhcpd_main                                         1846    1949    +103
send_renew                                           105     142     +37
send_NAK                                              61       -     -61
send_ACK                                             180       -    -180
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 2/0 up/down: 140/-241)         Total: -101 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-03-21 06:15:28 +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
6331cf059c *: use "can't" instead of "cannot" 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-11-13 09:08:27 +01:00
Denys Vlasenko
043b1e5d99 more C standard compat fixes from Dan Fandrich 
function                                             old     new   delta
docolon                                              207     204      -3

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-09-06 12:47:55 +02:00
Denys Vlasenko
97ef65483a udhcpc: support option 0x79 (static routes) (part of bug 341) 
function                                             old     new   delta
xmalloc_optname_optval                                 -     583    +583
dhcp_option_strings                                  258     266      +8
dhcp_options                                          70      72      +2
len_of_option_as_string                               11      12      +1
dhcp_option_lengths                                   11      12      +1
udhcp_run_script                                    1187     669    -518
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 4/1 up/down: 595/-518)           Total: 77 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-07-03 18:14:03 +02:00
Denys Vlasenko
7895b91743 udhcp: dname_dec may return NULL, account for that case 
Other random cleanips included...

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-07-03 16:59:59 +02:00
Denys Vlasenko
6947d2c7e1 udhcp: logging improvements, field and variable renames 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-06-17 13:24:03 +02:00
Denys Vlasenko
31af3d5a1d udhcp: shorten mac len from 16 to 6 in lease file 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-06-17 11:57:09 +02:00
Denys Vlasenko
ac906fa85e udhcp: change UDHCP_DEBUG into int, make verbosity selectable with -v 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-06-17 11:54:52 +02:00
Denis Vlasenko
bd79c3d337 dhcpd: remember and record hostnames; optimize get_option 
dumpleases: show hostnames

function                                             old     new   delta
add_lease                                            230     292     +62
send_offer                                           403     421     +18
send_ACK                                             232     249     +17
read_leases                                          249     258      +9
dumpleases_main                                      604     609      +5
nobody_responds_to_arp                                84      86      +2
udhcp_end_option                                      32      30      -2
udhcp_get_option                                     222     171     -51
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 6/2 up/down: 113/-53)            Total: 60 bytes
 2009-04-01 12:36:09 +00:00
Denis Vlasenko
efb545b9bd optimize 16- and 32-bit moves 
function                                             old     new   delta
udhcpd_main                                         1239    1257     +18
udhcp_add_simple_option                               93      92      -1
buffer_read_le_u32                                    19      18      -1
unpack_gz_stream_with_info                           526     520      -6
dnsd_main                                           1470    1463      -7
udhcp_run_script                                    1208    1186     -22
send_ACK                                             255     229     -26
arping_main                                         1661    1623     -38
send_offer                                           470     428     -42
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/8 up/down: 18/-143)          Total: -125 bytes
 2008-12-08 22:56:18 +00:00
Denis Vlasenko
db12d1d733 Fix forgotten license comments 2008-12-07 00:52:58 +00:00
Denis Vlasenko
35a064b67f build system: tidying up CONFIG_xxx names (suggested by Rob) 2008-11-06 00:49:59 +00:00
Denis Vlasenko
f1980f67d3 dhcp: add FAST_FUNC as appropriate. -160 bytes. 2008-09-26 09:34:59 +00:00
Denis Vlasenko
191836845e udhcpc: support for -O <option>. 
Two important notes:
* nissrv and nisdomain are not requested by default anymore!
* inconsistency between "XXXsvr" and "XXsrv" in option names resolved,
  all are "XXXsrv" now.

function                                             old     new   delta
udhcpc_main                                         2494    2600    +106
packed_usage                                       23023   23067     +44
add_requests                                          91     119     +28
static.udhcpc_longopts                               209     226     +17
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 4/0 up/down: 195/0)             Total: 195 bytes
 2007-12-10 07:03:38 +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
72e76044cf dhcpc: cope with buggy DHCP servers which send oversized packets 
(Cristian Ionescu-Idbohrn <cristian.ionescu-idbohrn@axis.com>)
 2007-11-25 03:15:24 +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
6ca409e0e4 trylink: produce even more info about final link stage 
trylink: explain how to modify link and drastically decrease amount
  of padding (unfortunately, needs hand editing ATM).
*: add ALIGN1 / ALIGN2 to global strings and arrays of bytes and shorts

size saving: 0.5k
 2007-08-12 20:58:27 +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
c4d606e367 udhcpd: allow "domain" to be a list of DNS servers, not just one 2007-02-02 01:16:08 +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
e1a0d486e4 message string changes, mostly for consistency, also -32 bytes in .rodata 2006-10-20 13:28:22 +00:00
Denis Vlasenko
ea62077b85 add open_read_close() and similar stuff 2006-10-14 02:23:43 +00:00
Denis Vlasenko
e175ff252f several fixes from openWRT project 2006-09-26 17:41:00 +00:00
Denis Vlasenko
3538b9a882 Implement optional syslog logging using ordinary 
bb_xx_msg calls, and convert networking/* to it.
The rest of bbox will be converted gradually.
 2006-09-06 18:36:50 +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
Rob Landley
c8b360ebb7 Use BB endianness macro. 2006-05-31 22:24:33 +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
Mike Frysinger
13c8327b79 sync busybox and udhcp trees 2006-03-23 03:05:05 +00:00
Tim Riker
c1ef7bdd8d just whitespace 2006-01-25 00:08:53 +00:00
"Vladimir N. Oleynik"
b628409b1e more make safe the exported namespace for udhcp. Move to bb-specific file for reduce change into udhcp-CVS 2005-09-23 11:25:29 +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
Rob Landley
230b411de8 Fix the warning by rewriting the function to be smaller and simpler. 
I'd appreciate somebody on a __BIG_ENDIAN platform testing this out; I haven't
got the hardware...
 2005-09-08 03:22:09 +00:00
Mike Frysinger
d824853de3 merge from udhcp module 2004-12-06 14:59:45 +00:00
Eric Andersen
c7bda1ce65 Remove trailing whitespace. Update copyright to include 2004. 2004-03-15 08:29:22 +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
Glenn L McGrath
24833430bc Vodz, last_patch_88 2003-06-10 17:22:49 +00:00
Russ Dill
9f4395c54e sorry about all the noise, should be all synced up now 2002-12-11 21:40:46 +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