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path: root/networking/ifupdown.c
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2022-02-06*: slap on a few ALIGN* where appropriateDenys Vlasenko
The result of looking at "grep -F -B2 '*fill*' busybox_unstripped.map" function old new delta .rodata 108586 108460 -126 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-126) Total: -126 bytes text data bss dec hex filename 970412 4219 1848 976479 ee65f busybox_old 970286 4219 1848 976353 ee5e1 busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-18help text tweaksDenys Vlasenko
function old new delta packed_usage 33570 33502 -68 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-12-11libbb: make msleep() result in only one syscall instead of loopingDenys Vlasenko
function old new delta msleep 45 52 +7 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-07-02libbb: reduce the overhead of single parameter bb_error_msg() callsJames Byrne
Back in 2007, commit 0c97c9d43707 ("'simple' error message functions by Loic Grenie") introduced bb_simple_perror_msg() to allow for a lower overhead call to bb_perror_msg() when only a string was being printed with no parameters. This saves space for some CPU architectures because it avoids the overhead of a call to a variadic function. However there has never been a simple version of bb_error_msg(), and since 2007 many new calls to bb_perror_msg() have been added that only take a single parameter and so could have been using bb_simple_perror_message(). This changeset introduces 'simple' versions of bb_info_msg(), bb_error_msg(), bb_error_msg_and_die(), bb_herror_msg() and bb_herror_msg_and_die(), and replaces all calls that only take a single parameter, or use something like ("%s", arg), with calls to the corresponding 'simple' version. Since it is likely that single parameter calls to the variadic functions may be accidentally reintroduced in the future a new debugging config option WARN_SIMPLE_MSG has been introduced. This uses some macro magic which will cause any such calls to generate a warning, but this is turned off by default to avoid use of the unpleasant macros in normal circumstances. This is a large changeset due to the number of calls that have been replaced. The only files that contain changes other than simple substitution of function calls are libbb.h, libbb/herror_msg.c, libbb/verror_msg.c and libbb/xfuncs_printf.c. In miscutils/devfsd.c, networking/udhcp/common.h and util-linux/mdev.c additonal macros have been added for logging so that single parameter and multiple parameter logging variants exist. The amount of space saved varies considerably by architecture, and was found to be as follows (for 'defconfig' using GCC 7.4): Arm: -92 bytes MIPS: -52 bytes PPC: -1836 bytes x86_64: -938 bytes Note that for the MIPS architecture only an exception had to be made disabling the 'simple' calls for 'udhcp' (in networking/udhcp/common.h) because it made these files larger on MIPS. Signed-off-by: James Byrne <james.byrne@origamienergy.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-04-28ifupdown: close memory leakDenys Vlasenko
function old new delta execute_all 80 91 +11 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-28config: update size informationDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-09-30ifupdown: support "source-directory" stanzaBrandon Maier
Support the "source-directory" stanza from ifupdown[1]. source-directory will include all files in the named directory. Similar to the Busybox version of the "source" stanza, this version of source-directory does not currently support shell wildcards. We only check that the stanza starts with "source-dir" as ifupdown does[2]. [1] https://manpages.debian.org/stretch/ifupdown/interfaces.5.en.html#INCLUDING_OTHER_FILES [2] https://salsa.debian.org/debian/ifupdown/blob/0.8.33/config.c#L498 function old new delta read_interfaces 1150 1241 +91 Signed-off-by: Brandon Maier <brandon.maier@rockwellcollins.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-03-28ifupdown: do not fail if interface disappears during ifdownKaarle Ritvanen
Interface may not exist because it got deleted by an ifdown hook script earlier. This may happen when a virtual interface, such as VLAN, has multiple iface blocks defined. function old new delta static_down6 14 40 +26 static_down 54 70 +16 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 42/0) Total: 42 bytes Signed-off-by: Kaarle Ritvanen <kaarle.ritvanen@datakunkku.fi> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-10-05whitespace and comment format fixes, no code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-09-18regularize format of source file headers, no code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-27config: trim/improve item names and help texts, take 2Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-21config: deindent all help textsDenys Vlasenko
Those two spaces after tab have no effect, and always a nuisance when editing. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-19Update remaining menuconfig items with approximate applet sizesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-01-29*: add comment about APPLET_ODDNAME formatDenys Vlasenko
It confused me more than once Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-01-10Big cleanup in config help and descriptionDenys Vlasenko
Redundant help texts (one which only repeats the description) are deleted. Descriptions and help texts are trimmed. Some config options are moved, even across menus. No config option _names_ are changed. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-12-23Remove FEATURE_IFUPDOWN_IP_BUILTIN and FEATURE_IFUPDOWN_IFCONFIG_BUILTINDenys Vlasenko
They merely enable ip or ifconfig/route. There is already a way to do this on the same menuconfig page. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-11-14Make ifup and ifdown individually selectable.Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-10-09ifupdown: rewrite state file atomicallyDenys Vlasenko
By user's request. Decided to not use fcntl(F_SETLKW) in lieu of problems with locking on networked filesystems. The existence of /var/run/ifstate.new is treated as a write lock. rename() provides atomicity. function old new delta ifupdown_main 1019 1122 +103 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-09-25ifupdown: improve help text, add comment about run-parts error msgDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-09-20ifupdown: when flushing addresses with "ip", add label %label%Denys Vlasenko
User report: or our board we setup eth0:0 on a 10.10.10.x/29 netwrok. The problem is ip addr flush dev eth0:0 removes all ip addresses from eth0. You can see this if you run ip -stat -stat addr flush dev eth0:0 2: eth0 inet 172.27.105.10/22 brd 172.27.107.255 scope global eth0 valid_lft forever preferred_lft forever 2: eth0 inet 10.10.10.9/29 scope global eth0:0 valid_lft forever preferred_lft forever 2: eth0 inet6 fe80::a2f6:fdff:fe18:2b13/64 scope link valid_lft forever preferred_lft forever *** Round 1, deleting 3 addresses *** *** Flush is complete after 1 round *** 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>
2016-03-03ifupdowm: fix "warning: unused variable 'iface_list'"Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-03-01ifupdown: allow duplicate interface definitionsNicolas Cavallari
This patch allow to have multiple interface definitions, much like Debian's ifupdown. More specifically, it removes the check for a duplicate definition, so the impact on binary size should be fairly minimal. This configuration: iface eth0 inet static address 192.168.0.15 netmask 255.255.0.0 gateway 192.168.0.1 iface eth0 inet static address 10.0.0.1 netmask 255.255.255.0 Will add two addresses to eth0 if ip is used. If ifconfig is used, the standards methods will likely not stack, but the administrator may still use the manual method. The DHCP method may work depending on the DHCP client in use. This is a fairly advanced feature for power users who knows what they are doing. There are not many other network configuration systems that allows multiple addresses on an interface. Signed-off-by: Nicolas Cavallari <nicolas.cavallari@green-communications.fr> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-10-31ifupdown: use -x hostname:NAME with udhcpcNatanael Copa
The -H NAME is deprecated in udhcpc. See commit 2017d48c0d70bef8768efb42909e605ea8eb5a21 Signed-off-by: Natanael Copa <ncopa@alpinelinux.org> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-10-26ifupdown: pass interface device name for ipv6 route commandsTimo Teräs
IPv6 routes need the device argument for link-local routes, or they cannot be used at all. E.g. "gateway fe80::def" seems to be used in some places, but kernel refuses to insert the route unless device name is explicitly specified in the route addition. Signed-off-by: Timo Teräs <timo.teras@iki.fi> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-08-24ifupdown: 'prio' should have been 'metric' in static_up and static_up6Alex Dowad
When a static interface with explicit gateway and metric in /etc/network/interfaces is enabled using 'ifup', and further, the BusyBox 'ip' applet is enabled, the following error message appears at the console (and no default route is added): ip: either "to" is duplicate, or "prio" is garbage Tracing ifup reveals that it is attempting to run the following shell command: ip route add default via <GW> dev <DEVICE> prio <METRIC> 'ip' does not understand the 'prio' argument, causing this error. With 'metric', it works fine. Signed-off-by: Alex Dowad <alexinbeijing@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-03-22ifupdown: shrink a messageDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-03-22ifupdown: correct ifstate update during 'ifup -a'. Closes 6212Frank Bergmann
When 'if -a' runs into an failure on an interface all further interfaces won't be correctly updated in ifstate. This patch inserts a new variable that only tracks the current interfaces failure so that the write to ifstate can rely on this and not the one for the functions return value. Fixes https://bugs.busybox.net/show_bug.cgi?id=6212 Signed-off-by: Frank Bergmann <frank.frajasalo@googlemail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-03-12libbb: introduce and use is_prefixed_with()Denys Vlasenko
function old new delta is_prefixed_with - 18 +18 complete_username 78 77 -1 man_main 737 735 -2 fsck_device 429 427 -2 unpack_ar_archive 80 76 -4 strip_unsafe_prefix 105 101 -4 singlemount 1054 1050 -4 rtc_adjtime_is_utc 90 86 -4 resolve_mount_spec 88 84 -4 parse_one_line 1029 1025 -4 parse_conf 1460 1456 -4 may_wakeup 83 79 -4 loadkmap_main 219 215 -4 get_irqs_from_stat 103 99 -4 get_header_cpio 913 909 -4 findfs_main 79 75 -4 fbsplash_main 1230 1226 -4 load_crontab 776 771 -5 expand_vars_to_list 1151 1146 -5 date_main 881 876 -5 skip_dev_pfx 30 24 -6 make_device 2199 2193 -6 complete_cmd_dir_file 773 767 -6 run_applet_and_exit 715 708 -7 uudecode_main 321 313 -8 pwdx_main 197 189 -8 execute 568 560 -8 i2cdetect_main 1186 1176 -10 procps_scan 1242 1230 -12 procps_read_smaps 1017 1005 -12 process_module 746 734 -12 patch_main 1903 1891 -12 nfsmount 3572 3560 -12 stack_machine 126 112 -14 process_timer_stats 449 435 -14 match_fstype 111 97 -14 do_ipaddr 1344 1330 -14 open_list_and_close 359 343 -16 get_header_tar 1795 1779 -16 prepend_new_eth_table 340 323 -17 fsck_main 1811 1794 -17 find_iface_state 56 38 -18 dnsd_main 1321 1303 -18 base_device 179 158 -21 find_keyword 104 82 -22 handle_incoming_and_exit 2785 2762 -23 parse_and_put_prompt 774 746 -28 modinfo 347 317 -30 find_action 204 171 -33 update_passwd 1470 1436 -34 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 0/49 up/down: 18/-540) Total: -522 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-05-02libbb: rename execable -> executable. No code changesDenys Vlasenko
English speakers complained that it sounded awfully broken. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-02-03ifupdown: support 'link' address familyKaarle Ritvanen
Does not configure anything. L2 configuration hook scripts should do their job on receiving ADDRFAM=link. Configuration will be done only once, irrespective of L3 protocols used. Using the 'link' family in the interfaces file conforms to the Debian implementation: http://sources.debian.net/src/ifupdown/0.7.47.1/link.defn function old new delta link_methods - 12 +12 addr_link - 12 +12 link_up_down - 6 +6 static.addr_fams 12 16 +4 ------------------------------------------------------------------------------ (add/remove: 3/0 grow/shrink: 1/0 up/down: 34/0) Total: 34 bytes Signed-off-by: Kaarle Ritvanen <kaarle.ritvanen@datakunkku.fi> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-02-28ifupdown: support "source" stanza in /etc/network/interfacesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-11-09ifupdown: code shrinkDenys Vlasenko
function old new delta execute 571 548 -23 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-11-05ifupdown: remove unused errno assignmentsDenys Vlasenko
function old new delta execute 607 571 -36 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-11-05ifupdown: simple code shrinkDenys Vlasenko
function old new delta execute 631 607 -24 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-09-02style fixes, no code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-04-23ifupdown: improve compatibility with DebianAndreas Oberritter
Set environment variable 'PHASE'. Treat post-up and pre-down as aliases for up and down. Uses the same logic as ifupdown.nw from ifupdown-0.6.16. Makes it possible to execute Debian's ifupdown script for wpa-supplicant. Signed-off-by: Andreas Oberritter <obi@opendreambox.org> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-02-19ifupdown: support metric for static default gwNatanael Copa
This is useful when you have multiple ISPs with failover. It allows setting the priority of the static gateway and makes it possible to specify multiple static gateways. The ubuntu ifupdown supports it. function old new delta .rodata 116725 116797 +72 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/0 up/down: 72/0) Total: 72 bytes text data bss dec hex filename 953343 7313 8984 969640 ecba8 busybox_old 953415 7313 8984 969712 ecbf0 busybox_unstripped Signed-off-by: Natanael Copa <natanael.copa@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-12-15*: style fixes. no code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-12-15ifupdown: remove interface from state_list if iface_up failsLauri Hintsala
Fix the issue where interface is set to the configured state even if configuration has failed. Add error check to state setting logic. Signed-off-by: Lauri Hintsala <lauri.hintsala@bluegiga.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-10-19ifupdown: code shrinkDenys Vlasenko
function old new delta keywords_up_down - 43 +43 set_environ 371 259 -112 ifupdown_main 2194 2073 -121 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 0/2 up/down: 43/-233) Total: -190 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-10-19ifupdown: support post-up / pre-down hooksPeter Korsgaard
function old new delta set_environ 330 371 +41 ifupdown_main 2156 2194 +38 iface_up 97 113 +16 iface_down 97 113 +16 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 4/0 up/down: 111/0) Total: 111 bytes Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> 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>
2011-04-11move remaining help text from include/usage.src.hPere Orga
Signed-off-by: Pere Orga <gotrunks@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-03-08use user's shell instead of hardwired "/bin/sh" (android needs this)Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-03-02don't leak malloced variables in the loop; remove double allocAlexey Fomenko
Signed-off-by: Alexey Fomenko <ext-alexey.fomenko@nokia.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-10-29ifupdown: add manual method for IPv6. Closes bug 2497.Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-10-28*: whitespace fixesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-09-03ifupdown: %client%, not %clientid%Denys Vlasenko
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
generated by cgit v1.1 at 2024-12-26 19:17:25 +0000