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path: root/networking/udhcp
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2014-02-19udhcpc: fix BPF filter. Hopefully fixes the root cause of 4598 and 6746Denys Vlasenko
Use a *signed* large positive value in BPF filter to indicate success. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-02-07udhcpc: in comments, explain the kind of raw socket we createDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-02-03udhcpc: don't use BPF filter, users report problems (bugs 4598, 6746)Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-11-12udhcp: add PXELINUX config file option (code 209) definitionJeremy Kerr
This change adds a definition for DHCP option 209. RFC 5071 defines code 209 as a configuration file for a PXE bootloader; this change uses the string "pxeconffile" as its text identifier. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-11-03udhcpc: allow zero server-id. Closes 6614.Denys Vlasenko
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>
2013-10-28udhcpc: make DHCP packets to have at least 300 DHCP bytesJohannes Stezenbach
Commit b8b72f02 removed all padding from DHCP packets to fix operation with buggy servers which can't handle maximum sized packets. But it introduced a regression with buggy routers which drop DHCP packets smaller than 300 bytes (i.e. 342 byte ethernet packets). Add back some padding to work around. function old new delta udhcp_send_kernel_packet 268 292 +24 udhcp_send_raw_packet 462 473 +11 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 35/0) Total: 35 bytes Signed-off-by: Johannes Stezenbach <js@sig21.net> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-08-08udhcpc: tweak help text moreDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-08-08udhcpc: tweak help textDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-08-05udhcpc: tweak help textDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-05-17udhcp: code shrinkDenys Vlasenko
function old new delta attach_option 416 413 -3 allocate_tempopt_if_needed 74 - -74 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-05-17udhcpc: fix a problem with binary-encoded options #2Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-03-14udhcpd: also add -I ADDR to help textDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-03-13udhcpd: add -I LOCAL_ADDR optionDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-01-28udhcpc6: fix port numbers used if !FEATURE_UDHCP_PORTDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-01-14whitespace cleanup. no code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-09-27udhcpc[6]: allow discover_retries == 0 (infinite)Felix Fietkau
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-09-17ushcpc: gracefully handle packets with CHECKSUM_PARTIALAlexey Froloff
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>
2012-08-10udhcp[cd]: fix binding to network aliases. Closes 5432, 5438Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-07-27udhcpc: make -O <numeric_opt> work. Closes 5402Denys Vlasenko
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>
2012-07-26Add yet another missing ALIGN2 on a global declaration.Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-07-24dhcpd: write lease file on exitDenys Vlasenko
function old new delta udhcpd_main 1431 1403 -28 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-07-24*: declare strings with ALIGN1, as appropriateMichael Tokarev
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-06-02udhcpc[6]: show select timeout in logDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-05-02udhcpc6: depend on ipv6Mike Frysinger
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-04-22udhcpc: fix improper size calculation for OPTION_STRING_HOSTDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-04-20fix build breakage found by randconfigDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-04-17udhcp: make arpping code resistant to time jumpsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-12-16udhcp: finish support of classless static routes (now the correct patch!)Michael McTernan
Signed-off-by: Michael McTernan <Michael.McTernan.2001@cs.bris.ac.uk> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-12-08udhcpc: sanitize hostnames in incoming packets. Closes 3979.Denys Vlasenko
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>
2011-11-18udhcpc: shrink code by setting xid more economicallyDenys Vlasenko
function old new delta send_decline 90 82 -8 udhcpc_main 2649 2640 -9 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-11-16udhcpc6: rudimentary code to export data to script; fix IAADDR parsingDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-11-08udhcpc[6]: tweak help text, remove -B from udhcpc6 and "--version" from bothDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-11-07udhcpc6: set hop limit to 1 in emitted raw packetsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-11-07udhcpc6: fix endiannessDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-11-07udhcpc6: new applet. Not yet functional.Denys Vlasenko
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>
2011-11-07udhcpc: trim help text, rename badly-named variableDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-11-07udhcpc: code shrinkDenys Vlasenko
function old new delta udhcpc_main 2646 2649 +3 udhcp_run_script 816 802 -14 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-11-05udhcpc: remove workaround for bugs in Win98 dhcp server ("MSFT 98" vendor ↵Denys Vlasenko
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>
2011-11-05udhcpc: reuse string constant; remove unneeded memset(0)Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-11-05udhcpc: deprecate --hostname NAMEDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-10-23getty: reset tty attrs on Ctrl-C and Ctrl-D tooDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-10-20udhcpc: add comment about server IPDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-10-20udhcpc: in fill_envp, export BOOTP fields firstDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-10-20dhcpc: fix the case where we might add extra space at the end of envvar.Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-10-20udhcpc: fix 6rd option formatting (was using 4 more bytes than there is)Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-10-20udhcpc: remove unused argument in sprint_nip6Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-10-20udhcpc: small code shrinkDenys Vlasenko
function old new delta udhcp_recv_raw_packet 430 425 -5 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-10-20typo fix in commentDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-10-19udhcpc: add support for DHCP option 212 (RFC 5969)Denys Vlasenko
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>
2011-10-18udhcpc: on SIGUSR1, limit renew attempts time to 20 seconds; then do total ↵Vladislav Grishenko
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>
generated by cgit v1.1 at 2024-11-20 18:21:19 +0000