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2017-04-06iproute: update help text, add commented-out code for unsupported optionsDenys Vlasenko
function old new delta packed_usage 31327 31372 +45 do_iproute 132 157 +25 iproute_modify 1162 1164 +2 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 3/0 up/down: 72/0) Total: 72 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-04-06iplink: implement "set promisc on|off". Closes 4682Denys Vlasenko
function old new delta do_iplink 1232 1269 +37 packed_usage 31337 31327 -10 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-04-06ip link: tidying upDenys Vlasenko
Misplaced comment. --help was wrong: dynamic on|off is not supported. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-04-06modprobe: do not descend into /etc/modprobe.d/DIR/. Closes 8686Denys Vlasenko
Also expanded comments in recursive_action.c Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-04-06modprobe-small: fix "modprobe non-existing-module" exitcode (should be 1)Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-04-06modprobe: read modules.builtinBen Hutchings
This allows explicit probing to succeed when the requested module is actually built-in, and corrects the error message for removal. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-04-06examples: make udhcpc script handle /32 netmasksDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-04-05Add help text for 'uniq -i'Jody Bruchon
Signed-off-by: Jody Bruchon <jody@jodybruchon.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-04-05nl: use CONFIG_NL, not CONFIG_UNIQDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-04-05nl: new applet; also implement cat -nb (similar functionality to nl)Denys Vlasenko
function old new delta nl_main - 201 +201 print_numbered_lines - 115 +115 cat_main 36 149 +113 static.nl_longopts - 106 +106 packed_usage 31081 31182 +101 applet_main 1488 1492 +4 applet_names 2575 2578 +3 applet_suid 93 94 +1 applet_install_loc 186 187 +1 ------------------------------------------------------------------------------ (add/remove: 4/0 grow/shrink: 6/0 up/down: 645/0) Total: 645 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-04-04tls: do not compile in TLS_RSA_WITH_NULL_SHA256 code if unreachableDenys Vlasenko
function old new delta tls_handshake 1595 1588 -7 xwrite_encrypted 244 209 -35 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-04-03tls: avoid using int16 in pstm codeDenys Vlasenko
function old new delta pstm_div 1472 1522 +50 psRsaEncryptPub 403 413 +10 pstm_2expt 91 96 +5 pstm_clear 68 72 +4 pstm_init 39 42 +3 pstm_unsigned_bin_size 36 37 +1 pstm_montgomery_reduce 398 399 +1 pstm_init_size 45 46 +1 pstm_zero 39 38 -1 pstm_set 35 34 -1 pstm_read_unsigned_bin 112 109 -3 pstm_mulmod 123 120 -3 pstm_mod 116 113 -3 pstm_cmp 57 54 -3 pstm_sub 107 102 -5 pstm_to_unsigned_bin 157 151 -6 pstm_clamp 63 57 -6 pstm_add 116 108 -8 pstm_grow 81 72 -9 pstm_count_bits 57 48 -9 pstm_init_copy 84 72 -12 pstm_cmp_mag 93 78 -15 pstm_sqr_comba 567 551 -16 pstm_montgomery_calc_normalization 158 140 -18 pstm_copy 115 92 -23 pstm_lshd 133 109 -24 pstm_mul_comba 525 500 -25 pstm_mul_d 251 224 -27 s_pstm_sub 256 228 -28 s_pstm_add 370 337 -33 pstm_div_2d 444 409 -35 pstm_mul_2 195 156 -39 pstm_rshd 154 104 -50 pstm_mul_2d 247 186 -61 pstm_exptmod 1524 1463 -61 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 8/27 up/down: 75/-524) Total: -449 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-04-03tls: merge sha1 and sha256 hmac functionsDenys Vlasenko
function old new delta hmac_begin - 196 +196 hmac_sha256 61 68 +7 hmac 250 87 -163 hmac_sha256_begin 190 - -190 ------------------------------------------------------------------------------ (add/remove: 1/1 grow/shrink: 1/1 up/down: 203/-353) Total: -150 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-04-01tls: replace aes encryption/decryption by much smaller oneDenys Vlasenko
The replacement code is ~6 times slower, but drastically decreases size of tls_aes.o: text data bss dec hex filename 8050 0 0 8050 1f72 tls_aes_OLD.o 2461 0 0 2461 99d tls_aes.o function old new delta sbox - 256 +256 rsbox - 256 +256 KeyExpansion - 197 +197 Subword - 66 +66 AddRoundKey - 61 +61 static.Rcon - 10 +10 rcon 40 - -40 setup_mix 80 - -80 setup_mix2 123 - -123 aes_cbc_decrypt 1377 971 -406 aes_cbc_encrypt 1375 644 -731 psAesInit 848 - -848 Te4 1024 - -1024 TE0 1024 - -1024 TD0 1024 - -1024 Td4 1040 - -1040 ------------------------------------------------------------------------------ (add/remove: 6/8 grow/shrink: 0/2 up/down: 846/-6340) Total: -5494 bytes This code is based on public domain "tiny-AES128-C" code. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-03-30uniq: add -i option to ignore caseJody Bruchon
Signed-off-by: Jody Bruchon <jody@jodybruchon.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-03-28Update depmod & modprobe upstream help text in commentsKang-Che Sung
No code changes. Signed-off-by: Kang-Che Sung <explorer09@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-03-27udhcp6: move misplaced commentDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-03-27udhcp6: fix releasingDenys Vlasenko
Patch is based on work by tiggerswelt.net. They say: " We wanted udhcpc6 to release its IPv6-Addresses on quit (-R-commandline-option) which turned out to generate once again kind of garbage on the network-link. We tracked this down to two issues: - udhcpc6 uses a variable called "srv6_buf" to send packets to the dhcp6-server, but this variable is never initialized correctly and contained kind of a garbage-address - The address of the dhcp6-server is usually a link-local-address, that requires an interface-index when using connect() on an AF_INET6- socket We added an additional parameter for ifindex to d6_send_kernel_packet() and made d6_recv_raw_packet() to capture the address of the dhcp6-server and forward it to its callee. " Three last patches together: function old new delta d6_read_interface - 454 +454 d6_recv_raw_packet - 283 +283 option_to_env 249 504 +255 .rodata 165226 165371 +145 send_d6_discover 195 237 +42 send_d6_select 118 159 +41 send_d6_renew 173 186 +13 send_d6_release 162 173 +11 opt_req - 10 +10 d6_send_kernel_packet 304 312 +8 opt_fqdn_req - 6 +6 d6_mcast_from_client_config_ifindex 48 51 +3 d6_find_option 63 61 -2 udhcpc6_main 2416 2411 -5 static.d6_recv_raw_packet 266 - -266 ------------------------------------------------------------------------------ (add/remove: 5/1 grow/shrink: 8/2 up/down: 1271/-273) Total: 998 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-03-27udhcp6: fix problems found running against dnsmasqDenys Vlasenko
Patch is based on work by tiggerswelt.net. They say: " But when we tried to use dnsmasq on server-side, udhcpc6 was unable to forward the acquired address to its setup-script although the IPv6-Address had been assigned by the server as we could see via tcpdump. We traced this issue down to a problem on how udhcpc6 parses DHCPv6-Options: When moving to next option, a pointer-address is increased and a length buffer is decreased by the length of the option. The problem is that it is done in this order: option += 4 + option[3]; len_m4 -= 4 + option[3]; But this has to be switched as the length is decreased by the length of the *next* option, not the current one. This affected both - internal checks if a required option is present and the function to expose options to the environment of the setup-script. There was also a bug parsing D6_OPT_STATUS_CODE Options, that made dnsmasq not work as udhcpc6 thought it is receiving a non-positive status-code (because it did not parse the status-code as required in RFC 3315). In addition we introduced basic support for RFC 3646 (OPTION_DNS_SERVERS and OPTION_DOMAIN_LIST) and RFC 4704 (OPTION_CLIENT_FQDN). " Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-03-27udhcp6: read_interface should save link-local ipv6 addressDenys Vlasenko
Patch is based on work by tiggerswelt.net. They say: "Using this patch it was no problem to acquire an IPv6-Address via DHCPv6 using ISC DHCPD6 on server-side." Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-03-24vi: avoid touching a new file with ZZ when no editing has been doneYousong Zhou
This is the behaviour observed with standard vim and busybox vi of at least 1.22.1. It was changed with commit "32afd3a vi: some simplifications" which happened before 1.23.0. Mistyping filename on command line happens fairly often and it's better we restore the old behaviour to avoid a few unnecessary flash writes and sometimes efforts of debugging bugs caused by those unneeded stray files. Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-03-24switch_root: don't bail out when console doesn't existAndrei Gherzan
Busybox is very often used in initramfs at the end of which usually there is a switch_root to the actual rootfs. There are many cases where the console kernel argument is either just a placeholder (for example RaspberryPi uses serial0 and serial1) or configured as null to avoid any console messages - usually you would see such of a setup in production environments. Currently busybox bails out if can't open the console argument. If this happenes in initramfs and if the console=null for example, you get in a blind kernel panic. Avoid this by only warning instead of dying. function old new delta switch_root_main 371 368 -3 Signed-off-by: Andrei Gherzan <andrei@gherzan.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-03-24whitespace fixDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-03-23paste: delimiter list use should restart for each new output lineDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-03-23typo fixDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-03-23paste: new appletMaxime Coste
function old new delta paste_main - 493 +493 packed_usage 31019 31070 +51 applet_names 2569 2575 +6 applet_main 1484 1488 +4 ------------------------------------------------------------------------------ (add/remove: 2/0 grow/shrink: 3/0 up/down: 554/0) Total: 554 bytes Signed-off-by: Maxime Coste <mawww@kakoune.org> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-03-16dd: call fsync() only once before exiting if conv=fsync is specifiedRostislav Skudnov
Signed-off-by: Rostislav Skudnov <rostislav@tuxera.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-03-16Revert "umount: make -d always active, add -D to suppress it"Denys Vlasenko
This reverts commit 86a03bee1d3d6990c03bf500836b19ec8a1c1f12. Since now our "mount -oloop" creates AUTOCLEARed loopdevs, we no longer need our umount to destroy loopdevs to match the usual util-linux behaviour. Now this revert fixes another, opposite bug: "explicit" mount /dev/loopN and then umount must not drop loopdevs! User complaint is as follows: It seems LOOP_CLR_FD called on a loop-*partition* removes the mapping of the whole *device* - which results in the following: root@LEDE:/# loop=$(losetup -f) root@LEDE:/# echo ${loop} /dev/loop2 root@LEDE:/# losetup ${loop} /IMAGE root@LEDE:/# ls -l ${loop}* brw------- 1 root root 7, 2 Mar 6 20:09 /dev/loop2 root@LEDE:/# partprobe ${loop} root@LEDE:/# ls -l ${loop}* brw------- 1 root root 7, 2 Mar 6 20:09 /dev/loop2 brw------- 1 root root 259, 8 Mar 6 21:59 /dev/loop2p1 brw------- 1 root root 259, 9 Mar 6 21:59 /dev/loop2p2 brw------- 1 root root 259, 10 Mar 6 21:59 /dev/loop2p3 brw------- 1 root root 259, 11 Mar 6 21:59 /dev/loop2p4 brw------- 1 root root 259, 12 Mar 6 21:59 /dev/loop2p5 brw------- 1 root root 259, 13 Mar 6 21:59 /dev/loop2p6 brw------- 1 root root 259, 14 Mar 6 21:59 /dev/loop2p7 brw------- 1 root root 259, 15 Mar 6 21:59 /dev/loop2p8 root@LEDE:/# mount ${loop}p8 /MOUNT # mount loop partition root@LEDE:/# losetup -a | grep $loop # loop dev mapping still there /dev/loop2: 0 /mnt/IMAGE root@LEDE:/# strace umount /MOUNT 2> /log # unmount loop partition root@LEDE:/# losetup -a | grep ${loop} # loop device mapping is gone root@LEDE:/# grep -i loop /log open("/dev/loop2p7", O_RDONLY|O_LARGEFILE) = 3 ioctl(3, LOOP_CLR_FD) = 0 root@LEDE:/# The strace was done to figure out, if maybe umount wrongly ioctl()'s the parent device instead of the partition - it doesn't. I already wasn't a fan of umount implicitly removing the mapping in the first place (as I usually setup and release loop devices with `losetup` and scripts needed to call umount differently in order to work and outside busybox). However taking above (kernel-)behaviour into account - umount calling ioctl(LOOP_CLR_FD) unconditionally potentially causes some nasty side effects Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-03-16mount: create loop devices with LO_FLAGS_AUTOCLEAR flagDenys Vlasenko
The "autolooped" mount (mount [-oloop] IMAGE /DIR/DIR) always creates AUTOCLEARed loopdevs, so that umounting drops them (and this does not require any code in the umount userspace). This happens since circa linux-2.6.25: commit 96c5865559cee0f9cbc5173f3c949f6ce3525581 Date: Wed Feb 6 01:36:27 2008 -0800 Subject: Allow auto-destruction of loop devices IOW: in this case, umount does not have to use -d to drop the loopdev. The explicit loop mount (mount /dev/loopN /DIR/DIR) does not do this. In this case, umount without -d should not drop loopdev. Unfortunately, bbox umount currently always implies -d, this probably needs fixing. function old new delta set_loop 537 597 +60 singlemount 1101 1138 +37 losetup_main 419 432 +13 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 3/0 up/down: 110/0) Total: 110 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-03-13runit: fix chpst -n -N -u USERDenys Vlasenko
busybox's chpst first switches user/group and then tries to call nice(). Once the root priviledges are dropped, process priority can only be lowered. So negative nice values don't work anymore. Upstream version of chpst correctly calls nice() before switching user. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-03-13vi: don't touch file with :x when modified_count == 0Denys Vlasenko
Along with it, there are other changes - Check for uppercase X is removed as the expression will be always false and :X itself is another totally different command in standard vim - The status line will show number of written lines instead of lines requested by the colon command. This is also how the standard vim is doing, though the difference is that '!' has to be explicitly specified in vim to allow partial writes Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-02-17reset: before calling execvp(), reset needs to flush stdoutGlenn Matthews
Signed-off-by: Glenn Matthews <glmatthe@cisco.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-02-17Fix FEATURE_{GZIP,BZIP2}_DECOMPRESS link errorKang-Che Sung
... when gzip is selected but not gunzip nor zcat, or when bzip2 is selected but not bunzip2 nor bzcat. This regression is introduced in b130f9f758b6404c6d0911a1c120937ae6ab47f8 ("Allow 'gzip -d' and 'bzip2 -d' without gunzip or bunzip2") Signed-off-by: Kang-Che Sung <explorer09@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-02-17udhcpc: make sure we do not overflow poll timeoutDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-02-17nc_bloaty: use poll() instead of select()Denys Vlasenko
function old new delta readwrite 829 715 -114 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-02-16udhcp: use poll() instead of select()Denys Vlasenko
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>
2017-02-16udhcp: do not clobber errno by signal handlerDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-02-16nc: use poll() instead of select()Denys Vlasenko
function old new delta nc_main 943 866 -77 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-02-16tls: covert i/o loop from using select() to poll()Denys Vlasenko
function old new delta tls_run_copy_loop 377 282 -95 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-02-12sendmail: allow "+" symbol in recipient. Closes 9646Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-02-12modprobe-small: define and use DEPMOD_OPT_n (option mask)Kang-Che Sung
Signed-off-by: Kang-Che Sung <explorer09@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-02-12modprobe-small: document '-n' in depmod usageKang-Che Sung
Signed-off-by: Kang-Che Sung <explorer09@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-02-07modprobe_small: if only MODPROBE and DEPMOD are selected, no need to test ↵Denys Vlasenko
for them function old new delta modprobe_main 321 306 -15 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-02-05Reorder modutils config options & fix yet more dependencyKang-Che Sung
- modprobe can indirectly benefit from FEATURE_2_4_MODULES and FEATURE_INSMOD_TRY_MAP options. - The position of config FEATURE_INSMOD_TRY_MMAP prevented some other config options from indenting under FEATURE_2_4_MODULES. Reorder to fix this. - FEATURE_MODPROBE_SMALL_CHECK_ALREADY_LOADED is now moved to Config.src under "Common options" section. (I wished to edit this config so that it also work with "big" modutils, but it's not done at the moment. Sorry.) Signed-off-by: Kang-Che Sung <explorer09@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-02-05modutils: fix config options dependency (2)Kang-Che Sung
- The modprobe-small implementation of rmmod no longer chdir's to "/lib/modules/`uname -r`" as it was not necessary for rmmod's operation. (And it no longer need to die if such modules directory doesn't exist.) - Configs DEFAULT_MODULES_DIR and DEFAULT_DEPMOD_FILE no longer depend on MODPROBE_SMALL as the latter may not enable depmod or modprobe that requires these configs. - Clarify DEFAULT_DEPMOD_FILE's description regarding the ".bb" name suffix. Signed-off-by: Kang-Che Sung <explorer09@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-02-04httpd: use "Content-Length", not "-length"Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-02-04Replace int -> uint to avoid signed integer overflowRostislav Skudnov
An example of such an error (should be compiled with DEBUG_SANITIZE): runtime error: left shift of 1 by 31 places cannot be represented in type 'int' Signed-off-by: Rostislav Skudnov <rostislav@tuxera.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-02-04tls: fold AES CBC en/decryption into single functionsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-02-03wget/tls: session_id of zero length is ok (arxiv.org responds with such)Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-02-03ash: add INT_OFF/ON around allocationsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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