busybox-w32/networking/libiproute/iplink.c, branch zstd

networking/libiproute/iplink.c: fix support for older kernels

2024-10-06T16:25:01+00:00

- The CAN netlink interface has been added in Linux v2.6.31 with only 3 options [1]: CAN_CTRLMODE_LOOPBACK 0x1 /* Loopback mode */ CAN_CTRLMODE_LISTENONLY 0x2 /* Listen-only mode */ CAN_CTRLMODE_3_SAMPLES 0x4 /* Triple sampling mode */ So define the other options. - IFLA_CAN_TERMINATION has been added in Linux 4.11 [2], define it for older kernels. [1] https://github.com/torvalds/linux/blob/v2.6.31/include/linux/can/netlink.h#L80-L82 [2] https://github.com/torvalds/linux/commit/12a6075cabc0d9ffbc0366b44daa22f278606312 Signed-off-by: Thomas Devoogdt Signed-off-by: Denys Vlasenko

ip link: support for the CAN netlink

2024-02-26T13:10:10+00:00

I developed this application to test the Linux kernel series [1]. As described in it I could not use the iproute2 package since the microcontroller is without MMU. function old new delta do_set_can - 920 +920 packed_usage 34645 34908 +263 get_float_1000 - 164 +164 .rodata 105427 105539 +112 do_iplink 1313 1381 +68 ------------------------------------------------------------------------------ (add/remove: 2/0 grow/shrink: 3/0 up/down: 1527/0) Total: 1527 bytes cc: Marc Kleine-Budde [1] https://marc.info/?l=linux-netdev&m=167999323611710&w=2 Signed-off-by: Dario Binacchi Signed-off-by: Denys Vlasenko

libbb: code shrink: introduce and use [_]exit_FAILURE()

2023-06-15T09:55:56+00:00

function old new delta exit_FAILURE - 7 +7 _exit_FAILURE - 7 +7 run 198 199 +1 restore_state_and_exit 114 115 +1 xbsd_write_bootstrap 399 397 -2 vfork_compressor 209 207 -2 sig_handler 12 10 -2 serial_ctl 154 152 -2 parse_args 1169 1167 -2 onintr 21 19 -2 make_new_session 493 491 -2 login_main 988 986 -2 gotsig 35 33 -2 do_iplink 1315 1313 -2 addgroup_main 397 395 -2 inetd_main 1911 1908 -3 ------------------------------------------------------------------------------ (add/remove: 2/0 grow/shrink: 2/12 up/down: 16/-25) Total: -9 bytes Signed-off-by: Denys Vlasenko

ip: added support for setting netns on devices

2021-10-07T21:24:56+00:00

function old new delta set_netns - 130 +130 do_iplink 1252 1315 +63 .rodata 104173 104179 +6 packed_usage 34020 33993 -27 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 2/1 up/down: 199/-27) Total: 172 bytes Signed-off-by: Nicholas Niro Signed-off-by: Denys Vlasenko

ip link: Fix vlan proto, closes 8261 and 11638

2019-01-22T14:22:05+00:00

The proto has to be passed in network byte-order. While at it allow for ip link add link eth0 name eth0.2.24 type vlan proto 802.1ad id 24 ip link del link eth0 name eth0.2.24 type vlan proto 802.1ad id 24 The del was lacking a dev_str and thus errored out. Fix by using name/dev counterpart as fallback. The proto identifier 802.1Q was not recognized, just it's lowercase variant, fix that too. function old new delta do_add_or_delete 1275 1376 +101 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/0 up/down: 101/0) Total: 101 bytes Signed-off-by: Bernhard Reutner-Fischer

ip link: fix mismatched enums in vlan_parse_opt(), closes 11631

2019-01-22T09:07:50+00:00

Signed-off-by: Denys Vlasenko

ioctl(SIOCGIFINDEX) does not require clearing of entire ifr

2018-03-27T21:55:43+00:00

function old new delta INET6_setroute 492 472 -20 do_iplink 1357 1330 -27 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-47) Total: -47 bytes Signed-off-by: Denys Vlasenko

iplink: implement support for selecting a master interface

2018-02-20T18:43:32+00:00

Attaching an interface to a VRF is done by setting the interface's master. Besides VRF, this can also be used for bridges. function old new delta set_master - 142 +142 do_iplink 1262 1357 +95 packed_usage 32546 32539 -7 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 1/1 up/down: 237/-7) Total: 230 bytes Signed-off-by: Jan Luebbe Signed-off-by: Denys Vlasenko

ip link: support "add TYPE vrf", improve --help

2018-02-20T18:29:05+00:00

VRF interfaces have a mandatory table parameter, which needs to be specified using a RTNL attribute. function old new delta do_add_or_delete 1150 1254 +104 packed_usage 32444 32546 +102 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 206/0) Total: 206 bytes Signed-off-by: Jan Luebbe Signed-off-by: Denys Vlasenko

libbb: introduce and use bb_getsockname()

2018-02-11T13:55:46+00:00

function old new delta bb_getsockname - 18 +18 xrtnl_open 88 83 -5 do_iplink 1216 1209 -7 arping_main 1686 1668 -18 ------------------------------------------------------------------------------ (add/remove: 2/0 grow/shrink: 0/3 up/down: 18/-30) Total: -12 bytes Signed-off-by: Denys Vlasenko