Denys Vlasenko
52a515d187
udhcp: use poll() instead of select()
...
function old new delta
udhcp_sp_read 65 46 -19
udhcp_sp_fd_set 79 54 -25
udhcpd_main 1530 1482 -48
udhcpc_main 2780 2730 -50
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/4 up/down: 0/-142) Total: -142 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-02-16 23:25:44 +01:00
Denys Vlasenko
f7683cdf83
Convert all udhcp applets to "new style" applet definitions
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-11-23 18:54:59 +01:00
Brian Foley
f9beeb22e2
udhcpc: check read of option length byte to be within packet
...
function old new delta
udhcp_get_option 215 220 +5
udhcp_run_script 802 803 +1
Signed-off-by: Brian Foley <bpfoley@google.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-10-25 14:20:55 +02:00
Peter Korsgaard
b6355e2bb5
udhcpc: Unconditionally call deconfig script, not only if lease is active
...
The udhcpc script may be used to setup fallback configuration (E.G. IPv4LL,
fixed IP address, ..) that also needs to be cleaned up on release (E.G.
when SIGUSR2 is called or on shutdown with -R), so unconditionally call
deconfig.
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-08-26 18:46:34 +02:00
Denys Vlasenko
237bedd499
getopt32: add new syntax of 'o:+' and 'o:*' for -o NUM and -o LIST
...
In many cases, this aqllows to drop use of opt_complementary.
Approximately -400 bytes:
function old new delta
getopt32 1423 1502 +79
opt_string 17 18 +1
OPT_STR 24 25 +1
uniq_main 416 406 -10
timeout_main 279 269 -10
sulogin_main 270 260 -10
readprofile_main 1825 1815 -10
ps_main 543 533 -10
pidof_main 245 235 -10
pgrep_main 611 601 -10
od_main 2600 2590 -10
mkfs_minix_main 2684 2674 -10
mkfs_ext2_main 2603 2593 -10
microcom_main 712 702 -10
makemime_main 315 305 -10
ionice_main 282 272 -10
inetd_main 2074 2064 -10
ifplugd_main 1144 1134 -10
halt_main 353 343 -10
getopt_main 636 626 -10
fdisk_main 2854 2844 -10
env_main 206 196 -10
dmesg_main 319 309 -10
conspy_main 1214 1204 -10
awk_main 981 971 -10
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/22 up/down: 81/-220) Total: -139 bytes
text data bss dec hex filename
919373 906 14060 934339 e41c3 busybox_old
918969 906 14060 933935 e402f busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-07-06 21:58:02 +02:00
Denys Vlasenko
44399e00ff
udhcpc: run "deconfig" script in manual renew state too. closes 9061
...
The bug was seen when the following is done:
# killall 1 udhpc; killall 2 udhpc
Performing a DHCP renew
state: 2 -> 5
Sending renew...
Entering released state
state: 5 -> 6 <<<<<<<<<<<<<< not calling script!!!!
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-07-03 20:26:44 +02:00
Denys Vlasenko
3e134ebf6a
*: slap on a few ALIGN1/2s where appropriate
...
The result of looking at "grep -F -B2 '*fill*' busybox_unstripped.map"
text data bss dec hex filename
829901 4086 1904 835891 cc133 busybox_before
829665 4086 1904 835655 cc047 busybox
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-04-22 18:09:21 +02:00
Denys Vlasenko
df70a43af2
udhcp: add setup_common_bufsiz() as needed
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-04-21 18:54:36 +02:00
Denys Vlasenko
8f2e99c813
udhcp: get rid of bb_info_msg()
...
function old new delta
udhcpd_main 1501 1531 +30
d6_recv_raw_packet 251 264 +13
perform_d6_release 188 198 +10
udhcpc6_main 2443 2449 +6
udhcp_recv_raw_packet 582 588 +6
udhcp_recv_kernel_packet 132 138 +6
send_d6_renew 140 146 +6
d6_recv_kernel_packet 118 124 +6
send_renew 77 82 +5
send_discover 85 90 +5
send_decline 84 89 +5
send_d6_select 97 102 +5
send_d6_discover 174 179 +5
perform_release 167 172 +5
count_lines 72 74 +2
udhcpc_main 2836 2837 +1
bb_info_msg 125 - -125
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 17/4 up/down: 117/-180) Total: -63 bytes
text data bss dec hex filename
924935 906 17160 943001 e6399 busybox_old
924736 906 17160 942802 e62d2 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-03-30 18:41:23 +02:00
Denys Vlasenko
86d9f60f3a
udhcpc: do not use -t NUM for counting "select" packets, use 3
...
Otherwise, "-t 0" usage may end up sending them forever
if server does not respond.
function old new delta
udhcpc_main 2846 2836 -10
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-03-04 17:00:56 +01:00
Hans Dedecker
abe8f7515a
dhcpc: Use client IP address as source address for DHCP renew/rebind messages
...
RFC2131 paragraph 4.1 states DHCP messages broadcast by a client prior to
that client obtaining its IP address must have the source IP address
field in the header set to 0.
Request messages transmitted in renewing and rebinding state need to use
the obtained IP address as source IP address in the header; this behavior
lines up with other implementations like ISC dhcp client.
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-03-03 02:05:53 +01:00
Denys Vlasenko
352f79acbd
udhcpc: fix OPTION_6RD parsing (could overflow its malloced buffer)
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-02-26 15:54:56 +01:00
Denys Vlasenko
8efcc9589b
networking: allow dot at the end of the domain name in dhcp response
...
Patch based on Balaji Punnuru <balaji.punnuru@gmail.com> work.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-02-11 17:44:44 +01:00
Denys Vlasenko
f2bf20f5d5
udhcpc: fix for some Android toolchain breakage
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-10-08 18:13:57 +02:00
Denys Vlasenko
c52cbea2bb
libbb: add setsockopt_foo helpers
...
function old new delta
setsockopt_int - 23 +23
do_load 918 934 +16
setsockopt_SOL_SOCKET_int - 14 +14
setsockopt_keepalive - 10 +10
setsockopt_SOL_SOCKET_1 - 10 +10
buffer_fill_and_print 169 178 +9
setsockopt_1 - 8 +8
nfsmount 3560 3566 +6
redirect 1277 1282 +5
tcpudpsvd_main 1782 1786 +4
d6_send_kernel_packet 272 275 +3
i2cget_main 380 382 +2
ed_main 2544 2545 +1
scan_recursive 380 378 -2
nbdclient_main 492 490 -2
hash_find 235 233 -2
cmdputs 334 332 -2
parse_command 1443 1440 -3
static.two 4 - -4
ntpd_main 1039 1035 -4
const_int_1 4 - -4
const_IPTOS_LOWDELAY 4 - -4
RCVBUF 4 - -4
ntp_init 474 469 -5
change_listen_mode 316 310 -6
uevent_main 416 409 -7
arping_main 1697 1690 -7
telnet_main 1612 1603 -9
socket_want_pktinfo 42 33 -9
setsockopt_reuseaddr 21 10 -11
setsockopt_broadcast 21 10 -11
httpd_main 772 757 -15
get_remote_transfer_fd 109 94 -15
make_new_session 503 487 -16
ftpd_main 2177 2160 -17
read_bunzip 1896 1866 -30
common_traceroute_main 4099 4058 -41
common_ping_main 1836 1783 -53
------------------------------------------------------------------------------
(add/remove: 5/4 grow/shrink: 8/21 up/down: 111/-283) Total: -172 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-08-24 20:00:17 +02:00
Arthur Gautier
c29021e2a5
udhcpc: dns labels can actually start with a number
...
While RFC1035 recommends a label not to start with a number, there is
actually no such limitation in dns. One may buy a domain name like
0x1.net and use it.
This commit remove this check and allow a user to use such domains.
Signed-off-by: Arthur Gautier <baloo@gandi.net>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-07-30 03:03:58 +02:00
John Schroeder
8074a6ca4d
udhcpd: account for script delay in lease
...
Prevent nasty surprises if script runs longer than lease time / 2.
Signed-off-by: John Schroeder <jschroed@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-12-25 21:12:51 +01:00
Denys Vlasenko
28634924f0
udhcpc: account for script run time
...
Based on the following user report:
I ran into an issue where I was seeing a long delay in the scripts called
in udhcp_run_script. I was using an old version of OpenWrt (kamikaze)
and a satellite modem. An NTP script was being called and the modem
would sometimes take a long time to respond to the DNS lookup when
it was offline.
This delay started affecting my lease time. The lease that I would
get from my satellite modem before it was online would be short:
only 60 seconds. The delay with NTP and the modem would typically
be about 18 seconds. This would cause the first DHCP renew request
from dhcpc to be a little late. Under certain circumstances,
I could even see the first DHCP renew to occur after the lease
had expired!
function old new delta
udhcpc_main 2816 2837 +21
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-12-21 16:10:22 +01:00
Michel Stam
9f41271f3c
udhcpd: add option for tweaking arpping
...
Some clients have a very short timeout for sending the DHCP
DISCOVER, shorter than the arpping timeout of 2000 milliseconds
that udhcpd uses by default.
This patch allows tweaking the timeout, or disabling of arpping
altogether, at the risk of handing out addresses which are
already in use.
function old new delta
udhcpd_main 1460 1501 +41
udhcpc_main 2814 2851 +37
packed_usage 29957 29974 +17
arpping 477 493 +16
find_free_or_expired_nip 161 174 +13
send_offer 285 292 +7
nobody_responds_to_arp 85 89 +4
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 7/0 up/down: 135/0) Total: 135 bytes
Signed-off-by: Michel Stam <m.stam@fugro.nl>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-10-30 11:59:04 +01:00
Denys Vlasenko
85090c162b
udhcpc: make hostname sanitization optional. Closes 3979
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-06-16 00:17:00 +02:00
Denys Vlasenko
e2318bbad7
udhcpc: ignore NAKs from "wrong" servers. Closes 4267
...
function old new delta
udhcpc_main 2716 2814 +98
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-02-27 18:15:50 +01:00
Denys Vlasenko
ffc3a93d0d
udhcpc: fix BPF filter. Hopefully fixes the root cause of 4598 and 6746
...
Use a *signed* large positive value in BPF filter to indicate success.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-02-19 14:17:11 +01:00
Denys Vlasenko
744ee5db1c
udhcpc: in comments, explain the kind of raw socket we create
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-02-07 17:38:52 +01:00
Denys Vlasenko
e4785ca653
udhcpc: don't use BPF filter, users report problems (bugs 4598, 6746)
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-02-03 18:03:42 +01:00
Denys Vlasenko
8d3efaf35e
udhcpc: allow zero server-id. Closes 6614.
...
function old new delta
bcast_or_ucast - 47 +47
udhcp_send_kernel_packet 271 295 +24
udhcpc_main 2696 2705 +9
udhcp_send_raw_packet 456 459 +3
send_release 90 76 -14
send_renew 105 77 -28
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 3/2 up/down: 83/-42) Total: 41 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-11-03 19:20:54 +01:00
Denys Vlasenko
9ae6d79307
udhcpc: tweak help text more
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-08-08 12:45:45 +02:00
Denys Vlasenko
456687fff1
udhcpc: tweak help text
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-08-08 12:33:18 +02:00
Denys Vlasenko
aadb485bd0
udhcpc: tweak help text
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-08-05 02:21:36 +02:00
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
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
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
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
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
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
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
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
