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path: root/networking/udhcp/packet.c (follow)
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* randomconfig fixesDenys Vlasenko2017-07-031-0/+2
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* udhcp: get rid of bb_info_msg()Denys Vlasenko2016-03-301-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* udhcpc: make DHCP packets to have at least 300 DHCP bytesJohannes Stezenbach2013-10-281-0/+9
| | | | | | | | | | | | | | | | | | 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>
* udhcpc: trim help text, rename badly-named variableDenys Vlasenko2011-11-071-12/+11
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* udhcpc: remove workaround for bugs in Win98 dhcp server ("MSFT 98" vendor ↵Denys Vlasenko2011-11-051-31/+3
| | | | | | | | | | | | | | | | | | | 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>
* networking: consolidate the IP checksum code. -129 bytes.Baruch Siach2011-09-071-31/+3
| | | | | Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* *: simplify Ethernet header includesDan Fandrich2011-06-101-10/+3
| | | | | Signed-off-by: Dan Fandrich <dan@coneharvesters.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* dhcp: typo fix: UPD_DHCP_SIZE -> UDP_DHCP_SIZEDenys Vlasenko2010-10-201-4/+4
| | | | Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
* *: make GNU licensing statement forms more regularDenys Vlasenko2010-08-161-1/+1
| | | | | | | 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>
* dhcp: truncate packets instead of padding them to 574 bytes. closes bug 1849Denys Vlasenko2010-05-311-12/+20
| | | | | | | | function old new delta udhcp_send_raw_packet 411 456 +45 udhcp_send_kernel_packet 259 271 +12 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* dhcp: readability cleanups and small code shrinkDenys Vlasenko2010-05-301-27/+19
| | | | | | | function old new delta udhcp_run_script 654 617 -37 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* udhcp: cosmetic cleanups; one case of s/full_read/xread/Denys Vlasenko2010-03-261-6/+7
| | | | | | | function old new delta dumpleases_main 632 623 -9 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* udhcp: pass pointer to whole packet to "add option" functionsDenys Vlasenko2010-03-261-1/+1
| | | | | | | | | | | | | | | | | | | | | This is needed for "overflow option" support function old new delta udhcp_find_option - 34 +34 udhcp_add_binary_option 94 106 +12 write_leases 227 223 -4 udhcp_init_header 86 82 -4 send_release 104 99 -5 init_packet 87 81 -6 add_client_options 160 154 -6 add_server_options 100 92 -8 udhcpd_main 1964 1954 -10 udhcpc_main 2859 2837 -22 find_option 34 - -34 ------------------------------------------------------------------------------ (add/remove: 1/1 grow/shrink: 1/8 up/down: 46/-99) Total: -53 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* udhcp: handle errors in read_staticleaseDenys Vlasenko2010-03-231-3/+3
| | | | | | | | | also gets rid of ether-aton's static buffer in ether-wake: text data bss dec hexfilename 838664 441 7572 846677 ceb55busybox_old 838650 441 7564 846655 ceb3fbusybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* udhcp: merge options.h into common.h, script.c into dhcpc.cDenys Vlasenko2010-03-221-4/+3
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* udhcpd: untangle incredibly messy handling of DHCPREQUESTDenys Vlasenko2010-03-211-4/+7
| | | | | | | | | | | | | | 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>
* remove trailing whitespaceDenys Vlasenko2009-07-151-1/+1
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* udhcp: fix trivial compile errorDenys Vlasenko2009-06-191-1/+1
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* udhcp: logging improvements, field and variable renamesDenys Vlasenko2009-06-171-1/+1
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* udhcp: shorten mac len from 16 to 6 in lease fileDenys Vlasenko2009-06-171-10/+10
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* udhcp: change UDHCP_DEBUG into int, make verbosity selectable with -vDenys Vlasenko2009-06-171-16/+60
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* Fix forgotten license commentsDenis Vlasenko2008-12-071-0/+6
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* udhcp: add inline docs; small code shrinkDenis Vlasenko2008-09-261-4/+4
| | | | | | | function old new delta send_packet 103 87 -16 udhcpc_main 2359 2323 -36
* udhcp: added some FIXMEs; code shrink. -49 bytesDenis Vlasenko2008-09-261-1/+2
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* dhcp: add FAST_FUNC as appropriate. -160 bytes.Denis Vlasenko2008-09-261-5/+5
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* udhcpc: regularize the names of receiving functions,Denis Vlasenko2008-05-211-1/+1
| | | | | | pause on "serious failure to receive". Some misc fixes are also folded in here.
* udhcp: we were forgetting to set right op byte in tha packetDenis Vlasenko2008-02-201-6/+1
| | | | | for DHCPDECLINE. Fixing, and making code smaller.
* Makefile: change version to 1.10.0.svnDenis Vlasenko2007-12-241-32/+41
| | | | | | | | | | | udhcpc: make UDP packet sending the same as raw sending in regards to error messages. Minor code size shrink. Total size grows due to added messages: text data bss dec hex filename 770312 683 7244 778239 bdfff busybox_old 770327 683 7244 778254 be00e busybox_unstripped
* udhcp: decided to not send "short" dhcp packets,Denis Vlasenko2007-12-211-1/+6
| | | | | but lets add comments how to do it if needed.
* udhcp: fix oversized packet sending (introduced by "slack for bad dhcp ↵Denis Vlasenko2007-12-201-13/+23
| | | | | | | | | | | | | | | | | servers" options); slight optimizations and function renaming udhcp_send_raw_packet - 391 +391 udhcp_send_kernel_packet - 197 +197 udhcp_recv_packet - 134 +134 get_raw_packet 353 326 -27 udhcp_get_packet 134 - -134 udhcp_kernel_packet 197 - -197 udhcp_raw_packet 391 - -391 ------------------------------------------------------------------------------ (add/remove: 3/3 grow/shrink: 0/1 up/down: 722/-749) Total: -27 bytes
* dhcp: stop using magic constants; use (htonl(CONST) != a) - it's smallerDenis Vlasenko2007-11-231-5/+1
| | | | | | | function old new delta udhcp_get_packet 146 134 -12 get_raw_packet 368 353 -15
* introduce and use xdup2(int, int)Denis Vlasenko2007-08-181-5/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | stop checking whether setsockopt_reuseaddr(int fd) was successful (it always is) remove second parameter (sockllen) from xmalloc_sockaddr2xxxxx functions sockaddr2str 142 156 +14 collect_blk 467 474 +7 xdup2 28 33 +5 singlemount 4456 4454 -2 print_host 214 212 -2 nslookup_main 139 137 -2 ftpgetput_main 414 412 -2 udhcpd_main 1258 1255 -3 udhcpc_main 2405 2402 -3 traceroute_main 4125 4122 -3 nc_main 1072 1069 -3 buffer_fill_and_print 76 73 -3 xmalloc_sockaddr2hostonly_noport 18 14 -4 xmalloc_sockaddr2host_noport 18 14 -4 xmalloc_sockaddr2host 15 11 -4 xmalloc_sockaddr2dotted_noport 18 14 -4 xmalloc_sockaddr2dotted 18 14 -4 wget_main 2618 2614 -4 ping_main 393 389 -4 ip_port_str 120 115 -5 dhcprelay_main 1146 1141 -5 dnsd_main 1531 1525 -6 passwd_main 1110 1102 -8 udhcp_kernel_packet 206 197 -9 udhcp_listen_socket 154 144 -10 getty_main 2576 2566 -10 setup 655 640 -15 xmove_fd 51 34 -17 dolisten 759 742 -17 tcpudpsvd_main 1866 1836 -30 startservice 339 299 -40
* udhcp: many small fixes:Denis Vlasenko2007-07-031-10/+24
| | | | | | | | | | | | | | | | | | | | | | | | * arpping(): smaller and even probably fixed * lots of variables/params converted: ulong -> uint32_t * uptime() nuked in favor of monotonic_sec() * udhcp_get_packet(): only one "bad vendor", simplify function old new delta reservedIp 36 35 -1 udhcpc_main 2462 2460 -2 addStaticLease 64 62 -2 static.broken_vendors 16 - -16 uptime 19 - -19 udhcpd_main 1273 1238 -35 udhcp_get_packet 223 184 -39 .rodata 144162 144106 -56 arpping 690 609 -81 ------------------------------------------------------------------------------ (add/remove: 0/2 grow/shrink: 0/7 up/down: 0/-251) Total: -251 bytes text data bss dec hex filename 734241 3028 14400 751669 b7835 busybox_old 734005 3028 14400 751433 b7749 busybox_unstripped
* udhcp: MAC_BCAST_ADDR and blank_chaddr are in fact constant, move to rodata.Denis Vlasenko2007-04-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | a few global variables reduced to smallints function old new delta add_lease 75 227 +152 static.blank_chaddr - 16 +16 MAC_BCAST_ADDR - 6 +6 sockfd 4 8 +4 udhcp_run_script 1153 1155 +2 state 8 5 -3 listen_mode 4 1 -3 perform_release 152 148 -4 fd 8 4 -4 blank_chaddr 16 - -16 udhcpc_main 2518 2497 -21 .rodata 131864 131832 -32 oldest_expired_lease 61 - -61 clear_lease 127 - -127 ------------------------------------------------------------------------------ (add/remove: 2/3 grow/shrink: 3/6 up/down: 180/-271) Total: -91 bytes
* A bunch of defined(__GLIBC__) added. static-linking warning expandedDenis Vlasenko2006-12-181-1/+1
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* introduce setsockopt_reuseaddr(int fd), setsockopt_broadcast(int fd),Denis Vlasenko2006-11-221-2/+1
| | | | | use them where appropriate. 200 bytes saved
* add compile-time check for correct DHCP packet sizeDenis Vlasenko2006-11-201-0/+4
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* udhcp: fix indentation and style.Denis Vlasenko2006-11-181-16/+16
| | | | | Eliminate (group) a lot of smallish *.h files Remove lots of unneeded #includes
* add -Wundef, fix uncovered bugsDenis Vlasenko2006-11-171-1/+1
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* message string changes, mostly for consistency, also -32 bytes in .rodataDenis Vlasenko2006-10-201-2/+2
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* Implement optional syslog logging using ordinaryDenis Vlasenko2006-09-061-7/+7
| | | | | | bb_xx_msg calls, and convert networking/* to it. The rest of bbox will be converted gradually.
* Standardize on the vi editing directives being on the first line."Robert P. J. Day"2006-07-021-0/+1
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* Remove all usage of the "register" storage class specifier."Robert P. J. Day"2006-07-011-1/+1
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* My first bout of untangling udhcp. Make lots of gratuitous #defines goRob Landley2006-05-281-7/+7
| | | | | | away, substitutie BB_VER for an external VERSION, use busybox CONFIG symbols rather than checking for them then defining others, etc. Lots more cleanup to do...
* add back in udhcp supportMike Frysinger2006-05-081-0/+207
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* remove in place of external linkMike Frysinger2006-03-231-207/+0
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* sync busybox and udhcp treesMike Frysinger2006-03-231-2/+0
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* Patch from Denis Vlasenko to constify things and fix a few typos.Rob Landley2006-02-221-3/+4
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* Bug 751: file handle leaks can add up until available filehandles for theRob Landley2006-02-221-3/+9
| | | | process are exhausted.
* fix up yet more annoying signed/unsigned and mixed type errorsEric Andersen2006-01-301-1/+1
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