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459 Commits

Author SHA1 Message Date
Denys Vlasenko
b443a3780d udhcp: code shrink 
function                                             old     new   delta
attach_option                                        416     413      -3
allocate_tempopt_if_needed                            74       -     -74

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-05-17 15:19:47 +02:00
Denys Vlasenko
c133fa66f3 udhcpc: fix a problem with binary-encoded options #2 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-05-17 15:13:38 +02:00
Denys Vlasenko
7b5d5c1bdb udhcpd: also add -I ADDR to help text 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-03-14 02:18:52 +01:00
Denys Vlasenko
e3f5b73ad0 udhcpd: add -I LOCAL_ADDR option 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-03-13 22:27:37 +01:00
Denys Vlasenko
04ac6e03c3 udhcpc6: fix port numbers used if !FEATURE_UDHCP_PORT 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-01-28 15:25:35 +01:00
Denys Vlasenko
60cb48ca50 whitespace cleanup. no code changes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-01-14 15:57:44 +01:00
Felix Fietkau
1c7a58dfb8 udhcpc[6]: allow discover_retries == 0 (infinite) 
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-09-27 16:22:24 +02:00
Alexey Froloff
3c62bbae94 ushcpc: gracefully handle packets with CHECKSUM_PARTIAL 
function                                             old     new   delta
udhcp_recv_raw_packet                                415     579    +164
change_listen_mode                                   317     370     +53
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 217/0)             Total: 217 bytes

Signed-off-by: Alexey Froloff <raorn@raorn.name>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-09-17 16:02:44 +02:00
Denys Vlasenko
6567edd10b udhcp[cd]: fix binding to network aliases. Closes 5432, 5438 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-08-10 00:27:22 +02:00
Denys Vlasenko
293c94564c udhcpc: make -O <numeric_opt> work. Closes 5402 
function                                             old     new   delta
udhcpc_main                                         2642    2685     +43
udhcp_recv_raw_packet                                414     415      +1
d6_recv_raw_packet                                   248     249      +1
udhcpc6_main                                        2430    2413     -17
add_client_options                                   239     213     -26
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/2 up/down: 45/-43)              Total: 2 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-07-27 13:25:07 +02:00
Denys Vlasenko
5cfb818181 Add yet another missing ALIGN2 on a global declaration. 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-07-26 12:58:41 +02:00
Denys Vlasenko
71045cc819 dhcpd: write lease file on exit 
function                                             old     new   delta
udhcpd_main                                         1431    1403     -28

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-07-24 17:21:26 +02:00
Michael Tokarev
32f774cd34 *: declare strings with ALIGN1, as appropriate 
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-07-24 15:56:37 +02:00
Denys Vlasenko
085b293338 udhcpc[6]: show select timeout in log 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-06-02 23:53:53 +02:00
Mike Frysinger
3da46c8163 udhcpc6: depend on ipv6 
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
 2012-05-02 21:45:35 -04:00
Denys Vlasenko
d2266d43bf udhcpc: fix improper size calculation for OPTION_STRING_HOST 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-04-22 03:37:01 +02:00
Denys Vlasenko
8cab66730a fix build breakage found by randconfig 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-04-20 14:48:00 +02:00
Denys Vlasenko
6500d123d0 udhcp: make arpping code resistant to time jumps 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-04-17 17:10:31 +02:00
Michael McTernan
ee0f444f11 udhcp: finish support of classless static routes (now the correct patch!) 
Signed-off-by: Michael McTernan <Michael.McTernan.2001@cs.bris.ac.uk>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-12-16 17:10:09 +01:00
Denys Vlasenko
7280d2017d udhcpc: sanitize hostnames in incoming packets. Closes 3979. 
The following options are replaced with string "bad" if they
contain malformed hostname:
HOST_NAME, DOMAIN_NAME, NIS_DOMAIN, TFTP_SERVER_NAME

function                                             old     new   delta
xmalloc_optname_optval                               850     888     +38
attach_option                                        440     443      +3
len_of_option_as_string                               13      14      +1
dhcp_option_lengths                                   13      14      +1
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 4/0 up/down: 43/0)               Total: 43 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-12-08 16:41:05 +01:00
Denys Vlasenko
860491c525 udhcpc: shrink code by setting xid more economically 
function                                             old     new   delta
send_decline                                          90      82      -8
udhcpc_main                                         2649    2640      -9

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-11-18 02:09:13 +01:00
Denys Vlasenko
a092a89d8f udhcpc6: rudimentary code to export data to script; fix IAADDR parsing 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-11-16 20:17:12 +01:00
Denys Vlasenko
7e21f0491c udhcpc[6]: tweak help text, remove -B from udhcpc6 and "--version" from both 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-11-08 11:39:41 +01:00
Denys Vlasenko
2b6a6b90cc udhcpc6: set hop limit to 1 in emitted raw packets 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-11-07 18:22:06 +01:00
Denys Vlasenko
68c5b28156 udhcpc6: fix endianness 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-11-07 16:21:24 +01:00
Denys Vlasenko
9ba75048c0 udhcpc6: new applet. Not yet functional. 
It builds. It sends Solicit packets. Not sure these packets are well-formed.
I have no server to test it against.

function                                             old     new   delta
udhcpc6_main                                           -    2426   +2426
d6_send_raw_packet                                     -     428    +428
d6_send_kernel_packet                                  -     274    +274
d6_recv_raw_packet                                     -     248    +248
send_d6_discover                                       -     177    +177
packed_usage                                       28795   28966    +171
d6_run_script                                          -     156    +156
send_d6_renew                                          -     140    +140
send_d6_release                                        -     126    +126
d6_recv_kernel_packet                                  -     116    +116
send_d6_select                                         -      95     +95
perform_d6_release                                     -      78     +78
d6_find_option                                         -      74     +74
init_d6_packet                                         -      54     +54
d6_copy_option                                         -      48     +48
d6_mcast_from_client_config_ifindex                    -      42     +42
d6_dump_packet                                         -      24     +24
static.FF02__1_2                                       -      16     +16
d6_store_blob                                          -      13     +13
applet_names                                        2432    2440      +8
applet_main                                         1412    1416      +4
applet_nameofs                                       706     708      +2
add_d6_client_options                                  -       1      +1
------------------------------------------------------------------------------
(add/remove: 21/0 grow/shrink: 4/0 up/down: 4721/0)          Total: 4721 bytes
   text	   data	    bss	    dec	    hex	filename
 879080	    493	   7584	 887157	  d8975	busybox_old
 884585	    497	   7584	 892666	  d9efa	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-11-07 15:55:39 +01:00
Denys Vlasenko
50089fc61c udhcpc: trim help text, rename badly-named variable 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-11-07 15:44:46 +01:00
Denys Vlasenko
0fd4347ced udhcpc: code shrink 
function                                             old     new   delta
udhcpc_main                                         2646    2649      +3
udhcp_run_script                                     816     802     -14

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-11-07 00:54:27 +01:00
Denys Vlasenko
3b46fcb95d udhcpc: remove workaround for bugs in Win98 dhcp server ("MSFT 98" vendor string) 
Stats for last three commits:

function                                             old     new   delta
udhcpc_main                                         2635    2646     +11
udhcp_recv_raw_packet                                425     414     -11
udhcp_recv_kernel_packet                             210     134     -76
packed_usage                                       28940   28857     -83
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/3 up/down: 11/-170)          Total: -159 bytes
   text    data     bss     dec     hex filename
 879524     493    7584  887601   d8b31 busybox_old
 879340     493    7584  887417   d8a79 busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-11-05 01:26:18 +01:00
Denys Vlasenko
d38ca03946 udhcpc: reuse string constant; remove unneeded memset(0) 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-11-05 01:25:03 +01:00
Denys Vlasenko
2017d48c0d udhcpc: deprecate --hostname NAME 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-11-05 01:24:14 +01:00
Denys Vlasenko
ee320c6d9c getty: reset tty attrs on Ctrl-C and Ctrl-D too 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-10-23 18:05:58 +02:00
Denys Vlasenko
2af2acf9b5 udhcpc: add comment about server IP 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-10-20 14:47:41 +02:00
Denys Vlasenko
fbca0c68a7 udhcpc: in fill_envp, export BOOTP fields first 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-10-20 14:24:18 +02:00
Denys Vlasenko
cd4d78f525 dhcpc: fix the case where we might add extra space at the end of envvar. 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-10-20 13:21:55 +02:00
Denys Vlasenko
1dff672335 udhcpc: fix 6rd option formatting (was using 4 more bytes than there is) 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-10-20 12:29:18 +02:00
Denys Vlasenko
42816c204d udhcpc: remove unused argument in sprint_nip6 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-10-20 10:52:07 +02:00
Denys Vlasenko
7981d79ef0 udhcpc: small code shrink 
function                                             old     new   delta
udhcp_recv_raw_packet                                430     425      -5

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-10-20 10:34:05 +02:00
Denys Vlasenko
f461385521 typo fix in comment 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-10-20 08:54:16 +02:00
Denys Vlasenko
1f56e51ca1 udhcpc: add support for DHCP option 212 (RFC 5969) 
The patch is from OpenWRT people.

function                                             old     new   delta
xmalloc_optname_optval                               637     874    +237
dhcp_option_strings                                  237     243      +6
dhcp_optflags                                         68      70      +2
len_of_option_as_string                               12      13      +1
dhcp_option_lengths                                   12      13      +1
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 5/0 up/down: 247/0)             Total: 247 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-10-19 22:40:35 +02:00
Vladislav Grishenko
6464f15ddb udhcpc: on SIGUSR1, limit renew attempts time to 20 seconds; then do total reconfig 
Scenario:

1. udhcpc gets lease for 86400 secs and sleeps for 43200 before renew attempt

2. PC gets physically disconnected and connected to another network

3. some phy control software sends SIGUSR1 to renew the lease, SIGUSR2 isn't
used because newly connected network could be the same as before

4. udhcpc sends unicast renew requests until lease timeout fall to 60 sec.
They are ignored by new network dhcp servers

5. udhcpc sends broadcast rebind requests for 60 seconds, which are NAKed
or ignored too

6. udhcpc deconfigs and starting from discover state, gets new lease for the
new network

So, pt.4+5 it could take up to 86400 secs without correct lease, which is
too long and not acceptable.

Second SIGUSR1 will immediately run into deconfig/discover state, which is
not preferable in case of the same subnet replugged.

This patch makes sure after SIGUSR1 timeout is no more than -A NUM
(usually 20 sec). It means that renew will be requested via broadcast,
and if no replies come back, full deconf/reconf cycle will be initiated
in 20 seconds.

Signed-off-by: Vladislav Grishenko <themiron@mail.ru>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-10-18 01:37:47 +02:00
Leonid Lisovskiy
6c9c0a1dc9 udhcp: IF_UDHCP_VERBOSE() macro - improve code readability 
Signed-off-by: Leonid Lisovskiy <lly.dev@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-10-18 00:35:47 +02:00
Baruch Siach
289c47b049 udhcp: remove the declaration of non-existent udhcp_checksum 
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-09-09 11:03:45 +02:00
Baruch Siach
e8f36330d9 networking: consolidate the IP checksum code. -129 bytes. 
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-09-07 17:55:40 +02:00
Dan Fandrich
f533ec8767 *: simplify Ethernet header includes 
Signed-off-by: Dan Fandrich <dan@coneharvesters.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-06-10 05:17:59 +02:00
Denys Vlasenko
66426760be *: remove "Options:" string from help texts 
function                                             old     new   delta
packed_usage                                       28706   28623     -83

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-06-05 03:58:28 +02:00
Denys Vlasenko
5d3aaceb79 udhcpc: allow -O OPT take numeric params 
function                                             old     new   delta
udhcpc_main                                         2623    2654     +31

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-06-04 05:07:16 +02:00
Denys Vlasenko
7945808c87 udhcp: fix some default values from "" to NULL 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-05-03 16:46:47 +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
Nigel Hathaway
c37d4c67e8 dhcpc: export unrecognized options in "optNN=XXXXXXXXX" form 
function                                             old     new   delta
udhcp_run_script                                     609     818    +209

Signed-off-by: Nigel Hathaway <Nigel.Hathaway@ubiquisys.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-04-26 02:38:29 +02:00