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path: root/networking/ping.c
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2016-06-23ping: populate icmp_id field for "simple" ping tooJonas Danielsson
The ICMP RFC says that identifier and sequence number may be zero. Having them zero for a Echo message, along with a data of zero's as well will result in a Echo reply message with only zero's. Some NAT implementations seem to get the checksum wrong on these packages. Setting a checksum of 0x0 instead of 0xffff. Through NAT: Internet Control Message Protocol Type: 0 (Echo (ping) reply) Code: 0 Checksum: 0x0000 [incorrect, should be 0xffff] Identifier (BE): 0 (0x0000) Identifier (LE): 0 (0x0000) Sequence number (BE): 0 (0x0000) Sequence number (LE): 0 (0x0000) Data (56 bytes) Data: 000000000000000000000000000000000000000000000000... [Length: 56] Without NAT: Internet Control Message Protocol Type: 0 (Echo (ping) reply) Code: 0 Checksum: 0xffff [correct] Identifier (BE): 0 (0x0000) Identifier (LE): 0 (0x0000) Sequence number (BE): 0 (0x0000) Sequence number (LE): 0 (0x0000) [Request frame: 189] [Response time: 0.024 ms] Data (56 bytes) Data: 000000000000000000000000000000000000000000000000... [Length: 56] And this in turn will make some hardware MAC checksum offloading engines drop the packet. (This was seen with a Synopsis MAC, the same one used in for instance the stmmac Ethernet driver in the linux kernel.) This change can be seen as a workaround for bugs in other layers. But just setting an identifier for the Echo message packet will avoid prodding the hornets nest. function old new delta common_ping_main 424 500 +76 Signed-off-by: Jonas Danielsson <jonasdn@axis.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-04-21*: add most of the required setup_common_bufsiz() callsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-04-21libbb: make bb_common_bufsiz1 1 kbyte, add capability to use bss tail for itDenys Vlasenko
The config item is FEATURE_USE_BSS_TAIL. When it is off (default): function old new delta read_config 210 228 +18 doCommands 2279 2294 +15 ipneigh_list_or_flush 763 772 +9 ipaddr_list_or_flush 1256 1261 +5 display_process_list 1301 1306 +5 conspy_main 1378 1383 +5 do_lzo_compress 352 355 +3 do_lzo_decompress 565 567 +2 push 46 44 -2 inetd_main 2136 2134 -2 uevent_main 421 418 -3 addLines 97 92 -5 bb_common_bufsiz1 8193 1024 -7169 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 8/5 up/down: 62/-7181) Total: -7119 bytes text data bss dec hex filename 829850 4086 9080 843016 cdd08 busybox_old 829901 4086 1904 835891 cc133 busybox_unstripped FEATURE_USE_BSS_TAIL=y: read_config 210 228 +18 doCommands 2279 2294 +15 ipneigh_list_or_flush 763 772 +9 ipaddr_list_or_flush 1256 1261 +5 display_process_list 1301 1306 +5 conspy_main 1378 1383 +5 do_lzo_compress 352 355 +3 do_lzo_decompress 565 567 +2 inetd_main 2136 2134 -2 bb_common_bufsiz1 8193 - -8193 ------------------------------------------------------------------------------ (add/remove: 0/1 grow/shrink: 8/1 up/down: 62/-8195) Total: -8133 bytes text data bss dec hex filename 829850 4086 9080 843016 cdd08 busybox_old 829911 4086 880 834877 cbd3d busybox_unstripped FIXME: setup_common_bufsiz() calls are missing. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-10-13libbb: introduce kernel-style BUILD_BUG_ON()Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-08-25ping: fix recently introduced build breakage for non-optimizing buildsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-08-24libbb: add setsockopt_foo helpersDenys Vlasenko
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>
2015-08-24Merge setsockopt error messagesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-08-27ping: add -p to specify data patternFlorian Fainelli
function old new delta common_ping_main 1788 1831 +43 sendping6 56 82 +26 sendping4 82 108 +26 packed_usage 29959 29938 -21 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 3/1 up/down: 95/-21) Total: 74 bytes Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-01-09ping: revert "try SOCK_DGRAM if no root privileges"Denys Vlasenko
It wasn't working, and fixes on top of it would make ping noticeably larger. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-11-28ping: try SOCK_DGRAM if no root privilegesDaniel Borca
Signed-off-by: Daniel Borca <dborca@yahoo.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-10-16Fix some compiler warnings emitted by gcc-4.8.0Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-06-28ping: code shrinkDenys Vlasenko
function old new delta unpack_tail 262 243 -19 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-06-28Move create_icmp[6]_socket to its only user, and simplify itDenys Vlasenko
function old new delta run_applet_and_exit 711 714 +3 sendping_tail 239 236 -3 common_ping_main 1798 1770 -28 create_icmp_socket 65 - -65 create_icmp6_socket 65 - -65 ------------------------------------------------------------------------------ (add/remove: 0/4 grow/shrink: 1/2 up/down: 3/-161) Total: -158 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-03-15ping[6]: accept and ignore -n. Code shrinkDenys Vlasenko
function old new delta print_stats_and_exit 270 232 -38 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-01-14whitespace fixes. no code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-09-11ping: display real IPv6 response address. Hopefully closes 3745.Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-09-07networking: consolidate the IP checksum code. -129 bytes.Baruch Siach
Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-07-08more tweak for bionicDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-06-05*: remove "Options:" string from help textsDenys Vlasenko
function old new delta packed_usage 28706 28623 -83 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-02-26Replace "depends on PLATFORM_LINUX" with "select PLATFORM_LINUX"Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-02-06ping: trivial simplification. -2 bytesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-02-05ping: fix IPv6 pinging. Closes bug 3187Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-01-18mass removal of underscores from _BB_DIR_foo and _BB_SUID_fooDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-01-03explain every non-SUID_DROP applet. No code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
2010-11-29ping: set not only IP_TTL, but also IP_MULTICAST_TTLDenys Vlasenko
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
2010-11-28ping: add -t TTL optionJoachim Nilsson
function old new delta common_ping_main 1755 1796 +41 packed_usage 27954 27971 +17 bbconfig_config_bz2 4965 4966 +1 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 3/0 up/down: 59/0) Total: 59 bytes Signed-off-by: Joachim Nilsson <joachim.nilsson@vmlinux.org> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-10-28*: whitespace fixesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-08-16*: make GNU licensing statement forms more regularDenys Vlasenko
This change retains "or later" state! No licensing _changes_ here, only form is adjusted (article, space between "GPL" and "v2" and so on). Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-03-03ping: do not leak data from stack; shrinkDenys Vlasenko
FANCY ping: function old new delta common_ping_main 386 1732 +1346 sendping6 98 83 -15 sendping4 188 158 -30 ping4 575 - -575 ping6 756 - -756 ------------------------------------------------------------------------------ (add/remove: 0/2 grow/shrink: 1/2 up/down: 1346/-1376) Total: -30 bytes !FANCY ping: function old new delta hostname 4 - -4 common_ping_main 566 499 -67 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-02-04*: suppress ~60% of "aliased warnings" on gcc-4.4.1Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-01-23ping: use ICMP_MINLENBernhard Reutner-Fischer
no code changes Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2009-11-26ping: fix unaligned access. closes bug 745.Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-11-21ping: use |=, not =, when combine option bit maskDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-11-20ping6: do not play dirty tricks with argvDenys Vlasenko
function old new delta common_ping_main - 368 +368 ping6_main 30 14 -16 ping_main 370 11 -359 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 0/2 up/down: 368/-375) Total: -7 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-11-02*: introduce and use ffulsh_all()Denys Vlasenko
function old new delta buffer_fill_and_print 179 196 +17 fflush_all - 9 +9 spawn 87 92 +5 rtcwake_main 455 453 -2 ... alarm_intr 93 84 -9 readcmd 1072 1062 -10 bb_ask 345 333 -12 more_main 845 832 -13 flush_stdout_stderr 42 23 -19 xfflush_stdout 27 - -27 flush_stderr 30 - -30 ------------------------------------------------------------------------------ (add/remove: 1/2 grow/shrink: 2/50 up/down: 31/-397) Total: -366 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-04-21*: mass renaming of USE_XXXX to IF_XXXXDenis Vlasenko
and SKIP_XXXX to IF_NOT_XXXX - the second one was especially badly named. It was not skipping anything!
2008-12-10*: fix SO_BINDTODEVICE. Kernel wants at least IFNAMSIZ bytes there.Denis Vlasenko
2008-10-27ping: trivial code shrinkDenis Vlasenko
function old new delta ping6_main 31 30 -1 ping_main 405 370 -35
2008-08-24ping: SO_RCVBUF must be bigger than packet size,Denis Vlasenko
otherwise large ping packets might fail to be received.
2008-07-05*: rename ATTRIBUTE_XXX to just XXX.Denis Vlasenko
2008-05-19- use EXIT_{SUCCESS,FAILURE}. No object-code changesBernhard Reutner-Fischer
2008-04-29ping: dont leak uninitialized data in ping packetsDenis Vlasenko
function old new delta sendping4 176 186 +10 sendping6 93 100 +7
2008-04-07ping: add -w, -W support (James Simmons <jsimmons AT infradead.org>)Denis Vlasenko
function old new delta print_stats_and_exit - 282 +282 sendping_tail 151 231 +80 packed_usage 23976 24054 +78 ping_main 401 412 +11 arm_ioctl 13 20 +7 pingstats 259 - -259 ------------------------------------------------------------------------------ (add/remove: 1/1 grow/shrink: 4/0 up/down: 458/-259) Total: 199 bytes
2008-03-17*: add -Wunused-parameter; fix resulting breakageDenis Vlasenko
function old new delta procps_scan 1265 1298 +33 aliascmd 278 283 +5 parse_file_cmd 116 120 +4 dname_enc 373 377 +4 setcmd 90 93 +3 execcmd 57 60 +3 count_lines 72 74 +2 process_command_subs 340 339 -1 test_main 409 407 -2 mknod_main 179 177 -2 handle_incoming_and_exit 2653 2651 -2 argstr 1312 1310 -2 shiftcmd 131 128 -3 exitcmd 46 43 -3 dotcmd 297 294 -3 breakcmd 86 83 -3 evalpipe 353 349 -4 evalcommand 1180 1176 -4 evalcmd 109 105 -4 send_tree 374 369 -5 mkfifo_main 82 77 -5 evalsubshell 152 147 -5 typecmd 75 69 -6 letcmd 61 55 -6 add_cmd 1190 1183 -7 main 891 883 -8 ash_main 1415 1407 -8 parse_stream 1377 1367 -10 alloc_procps_scan 55 - -55 ------------------------------------------------------------------------------ (add/remove: 0/1 grow/shrink: 7/21 up/down: 54/-148) Total: -94 bytes text data bss dec hex filename 797195 658 7428 805281 c49a1 busybox_old 797101 658 7428 805187 c4943 busybox_unstripped
2008-02-01Fix compilation error when FEATURE_FANCY_PING enabled. AlsoPaul Fox
reorder networking/Config.in moving FEATURE_FANCY_PING next to PING6. (Cristian Ionescu-Idbohrn)
2008-01-29- be C99 friendly. Anonymous unions are a GNU extension. This change isBernhard Reutner-Fischer
size-neutral WRT -std=gnu99 and fixes several compilation errors for strict C99 mode.
2008-01-07ps: fix build breakage from vda's recent commitDenis Vlasenko
*: whitespace fixes
2007-10-20ping: fix breakage from -I fixDenis Vlasenko
passwd: SELinux support by KaiGai Kohei <kaigai@ak.jp.nec.com>
2007-10-19paing: make -I ethN work too (-I addr already worked)Denis Vlasenko
2007-10-11add -fvisibility=hidden to CC flags, mark XXX_main functionsDenis Vlasenko
EXTERNALLY_VISIBLE. 5% size reduction of libbusybox.so
generated by cgit v1.1 at 2024-12-28 19:27:39 +0000