From 696c511fb480be04a0ab4563b06b5e1b0d7eb684 Mon Sep 17 00:00:00 2001 From: Hannu Nyman Date: Sat, 15 Jun 2019 12:16:55 +0300 Subject: [PATCH] busybox: update to 1.31.0 * Update busybox to version 1.31.0. New applets: ts, i2ctransfer New (restored) feature: error/info levels in syslog messages. Leave new features disabled by default. * Refresh patches * Remove patch that was backported from upstream Config refreshed with commands below, after which the OpenWrt specific config defaults (ipv6, login session child) were corrected: make package/busybox/compile (to populate the build_dir) cd package/utils/busybox/config/ ../convert_menuconfig.pl ../../../../build_dir/target-mips_24kc_musl/busybox-1.31.0 cd package/utils/busybox ./convert_defaults.pl < ../../../build_dir/target-mips_24kc_musl/busybox-1.31.0/.config > Config-defaults.in Signed-off-by: Hannu Nyman --- package/utils/busybox/Config-defaults.in | 24 +- package/utils/busybox/Makefile | 6 +- package/utils/busybox/config/Config.in | 11 +- .../utils/busybox/config/coreutils/Config.in | 12 +- .../utils/busybox/config/miscutils/Config.in | 10 + .../utils/busybox/config/networking/Config.in | 5 + .../busybox/config/networking/udhcp/Config.in | 2 +- package/utils/busybox/config/shell/Config.in | 5 + .../utils/busybox/config/util-linux/Config.in | 11 + .../patches/200-udhcpc_reduce_msgs.patch | 4 +- .../patches/201-udhcpc_changed_ifindex.patch | 6 +- .../203-udhcpc_renew_no_deconfig.patch | 4 +- .../busybox/patches/240-telnetd_intr.patch | 2 +- .../busybox/patches/250-date-k-flag.patch | 2 +- ...se-rtnl_send_check-on-flush-commands.patch | 214 ------------------ 15 files changed, 81 insertions(+), 237 deletions(-) delete mode 100644 package/utils/busybox/patches/530-ip-use-rtnl_send_check-on-flush-commands.patch diff --git a/package/utils/busybox/Config-defaults.in b/package/utils/busybox/Config-defaults.in index aa2f70e499..e81747be3c 100644 --- a/package/utils/busybox/Config-defaults.in +++ b/package/utils/busybox/Config-defaults.in @@ -79,6 +79,9 @@ config BUSYBOX_DEFAULT_SELINUX config BUSYBOX_DEFAULT_FEATURE_CLEAN_UP bool default n +config BUSYBOX_DEFAULT_FEATURE_SYSLOG_INFO + bool + default n config BUSYBOX_DEFAULT_FEATURE_SYSLOG bool default y @@ -601,9 +604,6 @@ config BUSYBOX_DEFAULT_FALSE config BUSYBOX_DEFAULT_FOLD bool default n -config BUSYBOX_DEFAULT_FSYNC - bool - default y config BUSYBOX_DEFAULT_HEAD bool default y @@ -790,6 +790,9 @@ config BUSYBOX_DEFAULT_SYNC config BUSYBOX_DEFAULT_FEATURE_SYNC_FANCY bool default n +config BUSYBOX_DEFAULT_FSYNC + bool + default y config BUSYBOX_DEFAULT_TAC bool default n @@ -1618,6 +1621,9 @@ config BUSYBOX_DEFAULT_FEATURE_MDEV_EXEC config BUSYBOX_DEFAULT_FEATURE_MDEV_LOAD_FIRMWARE bool default n +config BUSYBOX_DEFAULT_FEATURE_MDEV_DAEMON + bool + default n config BUSYBOX_DEFAULT_MESG bool default n @@ -2023,6 +2029,9 @@ config BUSYBOX_DEFAULT_I2CDUMP config BUSYBOX_DEFAULT_I2CDETECT bool default n +config BUSYBOX_DEFAULT_I2CTRANSFER + bool + default n config BUSYBOX_DEFAULT_INOTIFYD bool default n @@ -2125,6 +2134,9 @@ config BUSYBOX_DEFAULT_STRINGS config BUSYBOX_DEFAULT_TIME bool default y +config BUSYBOX_DEFAULT_TS + bool + default n config BUSYBOX_DEFAULT_TTYSIZE bool default n @@ -2504,6 +2516,9 @@ config BUSYBOX_DEFAULT_TFTP config BUSYBOX_DEFAULT_FEATURE_TFTP_PROGRESS_BAR bool default n +config BUSYBOX_DEFAULT_FEATURE_TFTP_HPA_COMPAT + bool + default n config BUSYBOX_DEFAULT_TFTPD bool default n @@ -3047,6 +3062,9 @@ config BUSYBOX_DEFAULT_FEATURE_SH_MATH config BUSYBOX_DEFAULT_FEATURE_SH_MATH_64 bool default y +config BUSYBOX_DEFAULT_FEATURE_SH_MATH_BASE + bool + default n config BUSYBOX_DEFAULT_FEATURE_SH_EXTRA_QUIET bool default n diff --git a/package/utils/busybox/Makefile b/package/utils/busybox/Makefile index 9b80ed1f5e..1e1712fe71 100644 --- a/package/utils/busybox/Makefile +++ b/package/utils/busybox/Makefile @@ -8,14 +8,14 @@ include $(TOPDIR)/rules.mk PKG_NAME:=busybox -PKG_VERSION:=1.30.1 -PKG_RELEASE:=5 +PKG_VERSION:=1.31.0 +PKG_RELEASE:=1 PKG_FLAGS:=essential PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2 PKG_SOURCE_URL:=https://www.busybox.net/downloads \ http://sources.buildroot.net -PKG_HASH:=3d1d04a4dbd34048f4794815a5c48ebb9eb53c5277e09ffffc060323b95dfbdc +PKG_HASH:=0e4925392fd9f3743cc517e031b68b012b24a63b0cf6c1ff03cce7bb3846cc99 PKG_BUILD_DEPENDS:=BUSYBOX_CONFIG_PAM:libpam PKG_BUILD_PARALLEL:=1 diff --git a/package/utils/busybox/config/Config.in b/package/utils/busybox/config/Config.in index 74493aa475..8d1394c2e2 100644 --- a/package/utils/busybox/config/Config.in +++ b/package/utils/busybox/config/Config.in @@ -11,7 +11,7 @@ config BUSYBOX_CONFIG_HAVE_DOT_CONFIG menu "Settings" config BUSYBOX_CONFIG_DESKTOP - bool "Enable compatibility for full-blown desktop systems" + bool "Enable compatibility for full-blown desktop systems (8kb)" default BUSYBOX_DEFAULT_DESKTOP help Enable applet options and features which are not essential. @@ -338,6 +338,15 @@ config BUSYBOX_CONFIG_FEATURE_CLEAN_UP Don't enable this unless you have a really good reason to clean things up manually. +config BUSYBOX_CONFIG_FEATURE_SYSLOG_INFO + bool "Support LOG_INFO level syslog messages" + default BUSYBOX_DEFAULT_FEATURE_SYSLOG_INFO + depends on BUSYBOX_CONFIG_FEATURE_SYSLOG + help + Applets which send their output to syslog use either LOG_INFO or + LOG_ERR log levels, but by disabling this option all messages will + be logged at the LOG_ERR level, saving just under 200 bytes. + # These are auto-selected by other options config BUSYBOX_CONFIG_FEATURE_SYSLOG diff --git a/package/utils/busybox/config/coreutils/Config.in b/package/utils/busybox/config/coreutils/Config.in index 76e59a571d..c5cd54d7f6 100644 --- a/package/utils/busybox/config/coreutils/Config.in +++ b/package/utils/busybox/config/coreutils/Config.in @@ -131,7 +131,7 @@ config BUSYBOX_CONFIG_FEATURE_DATE_COMPAT date -s (and other commands like touch -d) use more sensible formats (for one, ISO format YYYY-MM-DD hh:mm:ss.ssssss). - With this option off, 'date DATE' is 'date -s DATE' support + With this option off, 'date DATE' and 'date -s DATE' support the same format. With it on, 'date DATE' additionally supports MMDDhhmm[[YY]YY][.ss] format. config BUSYBOX_CONFIG_DD @@ -282,11 +282,6 @@ config BUSYBOX_CONFIG_FOLD default BUSYBOX_DEFAULT_FOLD help Wrap text to fit a specific width. -config BUSYBOX_CONFIG_FSYNC - bool "fsync (3.6 kb)" - default BUSYBOX_DEFAULT_FSYNC - help - fsync is used to flush file-related cached blocks to disk. config BUSYBOX_CONFIG_HEAD bool "head (3.8 kb)" default BUSYBOX_DEFAULT_HEAD @@ -667,6 +662,11 @@ config BUSYBOX_CONFIG_FEATURE_SYNC_FANCY help sync -d FILE... executes fdatasync() on each FILE. sync -f FILE... executes syncfs() on each FILE. +config BUSYBOX_CONFIG_FSYNC + bool "fsync (3.6 kb)" + default BUSYBOX_DEFAULT_FSYNC + help + fsync is used to flush file-related cached blocks to disk. config BUSYBOX_CONFIG_TAC bool "tac (3.9 kb)" default BUSYBOX_DEFAULT_TAC diff --git a/package/utils/busybox/config/miscutils/Config.in b/package/utils/busybox/config/miscutils/Config.in index dfd04fbd56..6ce6d2d7e3 100644 --- a/package/utils/busybox/config/miscutils/Config.in +++ b/package/utils/busybox/config/miscutils/Config.in @@ -470,6 +470,13 @@ config BUSYBOX_CONFIG_I2CDETECT help Detect I2C chips. +config BUSYBOX_CONFIG_I2CTRANSFER + bool "i2ctransfer (4.0 kb)" + default BUSYBOX_DEFAULT_I2CTRANSFER + select BUSYBOX_CONFIG_PLATFORM_LINUX + help + Send user-defined I2C messages in one transfer. + config BUSYBOX_CONFIG_INOTIFYD bool "inotifyd (3.6 kb)" default BUSYBOX_DEFAULT_INOTIFYD # doesn't build on Knoppix 5 @@ -728,6 +735,9 @@ config BUSYBOX_CONFIG_TIME The time command runs the specified program with the given arguments. When the command finishes, time writes a message to standard output giving timing statistics about this program run. +config BUSYBOX_CONFIG_TS + bool "ts (450 bytes)" + default BUSYBOX_DEFAULT_TS config BUSYBOX_CONFIG_TTYSIZE bool "ttysize (432 bytes)" default BUSYBOX_DEFAULT_TTYSIZE diff --git a/package/utils/busybox/config/networking/Config.in b/package/utils/busybox/config/networking/Config.in index a7d3d5a2e1..1a740d998e 100644 --- a/package/utils/busybox/config/networking/Config.in +++ b/package/utils/busybox/config/networking/Config.in @@ -972,6 +972,11 @@ config BUSYBOX_CONFIG_FEATURE_TFTP_PROGRESS_BAR default BUSYBOX_DEFAULT_FEATURE_TFTP_PROGRESS_BAR depends on BUSYBOX_CONFIG_TFTP +config BUSYBOX_CONFIG_FEATURE_TFTP_HPA_COMPAT + bool "tftp-hpa compat (support -c get/put FILE)" + default BUSYBOX_DEFAULT_FEATURE_TFTP_HPA_COMPAT + depends on BUSYBOX_CONFIG_TFTP + config BUSYBOX_CONFIG_TFTPD bool "tftpd (10 kb)" default BUSYBOX_DEFAULT_TFTPD diff --git a/package/utils/busybox/config/networking/udhcp/Config.in b/package/utils/busybox/config/networking/udhcp/Config.in index 212e4a0bcb..99d5bb9d21 100644 --- a/package/utils/busybox/config/networking/udhcp/Config.in +++ b/package/utils/busybox/config/networking/udhcp/Config.in @@ -104,7 +104,7 @@ config BUSYBOX_CONFIG_UDHCPC_DEFAULT_SCRIPT # udhcpc6 config is inserted here: config BUSYBOX_CONFIG_UDHCPC6 bool "udhcpc6 (21 kb)" - default BUSYBOX_DEFAULT_UDHCPC6 # not yet ready + default BUSYBOX_DEFAULT_UDHCPC6 depends on BUSYBOX_CONFIG_FEATURE_IPV6 help udhcpc6 is a DHCPv6 client diff --git a/package/utils/busybox/config/shell/Config.in b/package/utils/busybox/config/shell/Config.in index ddaa333e04..1ae6eb042e 100644 --- a/package/utils/busybox/config/shell/Config.in +++ b/package/utils/busybox/config/shell/Config.in @@ -497,6 +497,11 @@ config BUSYBOX_CONFIG_FEATURE_SH_MATH_64 slightly larger, but will allow computation with very large numbers. This is not in POSIX, so do not rely on this in portable code. +config BUSYBOX_CONFIG_FEATURE_SH_MATH_BASE + bool "Support BASE#nnnn literals" + default BUSYBOX_DEFAULT_FEATURE_SH_MATH_BASE + depends on BUSYBOX_CONFIG_FEATURE_SH_MATH + config BUSYBOX_CONFIG_FEATURE_SH_EXTRA_QUIET bool "Hide message on interactive shell startup" default BUSYBOX_DEFAULT_FEATURE_SH_EXTRA_QUIET diff --git a/package/utils/busybox/config/util-linux/Config.in b/package/utils/busybox/config/util-linux/Config.in index 20d7818f00..1cb2245e32 100644 --- a/package/utils/busybox/config/util-linux/Config.in +++ b/package/utils/busybox/config/util-linux/Config.in @@ -473,6 +473,17 @@ config BUSYBOX_CONFIG_FEATURE_MDEV_LOAD_FIRMWARE These devices will request userspace look up the files in /lib/firmware/ and if it exists, send it to the kernel for loading into the hardware. + +config BUSYBOX_CONFIG_FEATURE_MDEV_DAEMON + bool "Support daemon mode" + default BUSYBOX_DEFAULT_FEATURE_MDEV_DAEMON + depends on BUSYBOX_CONFIG_MDEV + help + Adds the -d option to run mdev in daemon mode handling hotplug + events from the kernel like udev. If the system generates many + hotplug events this mode of operation will consume less + resources than registering mdev as hotplug helper or using the + uevent applet. config BUSYBOX_CONFIG_MESG bool "mesg (1.4 kb)" default BUSYBOX_DEFAULT_MESG diff --git a/package/utils/busybox/patches/200-udhcpc_reduce_msgs.patch b/package/utils/busybox/patches/200-udhcpc_reduce_msgs.patch index 2d61a2d77d..4bab25a8d5 100644 --- a/package/utils/busybox/patches/200-udhcpc_reduce_msgs.patch +++ b/package/utils/busybox/patches/200-udhcpc_reduce_msgs.patch @@ -13,6 +13,6 @@ add_client_options(&packet); + if (msgs++ < 3) - bb_error_msg("sending %s", "discover"); - return raw_bcast_from_client_config_ifindex(&packet, INADDR_ANY); + bb_info_msg("sending %s", "discover"); + return raw_bcast_from_client_data_ifindex(&packet, INADDR_ANY); } diff --git a/package/utils/busybox/patches/201-udhcpc_changed_ifindex.patch b/package/utils/busybox/patches/201-udhcpc_changed_ifindex.patch index 51b15a73cc..256b049d9e 100644 --- a/package/utils/busybox/patches/201-udhcpc_changed_ifindex.patch +++ b/package/utils/busybox/patches/201-udhcpc_changed_ifindex.patch @@ -1,6 +1,6 @@ --- a/networking/udhcp/dhcpc.c +++ b/networking/udhcp/dhcpc.c -@@ -1417,6 +1417,12 @@ int udhcpc_main(int argc UNUSED_PARAM, c +@@ -1416,6 +1416,12 @@ int udhcpc_main(int argc UNUSED_PARAM, c /* silence "uninitialized!" warning */ unsigned timestamp_before_wait = timestamp_before_wait; @@ -8,8 +8,8 @@ + * member interfaces were added/removed or if the status of the + * bridge changed). + * Workaround: refresh it here before processing the next packet */ -+ udhcp_read_interface(client_config.interface, &client_config.ifindex, NULL, client_config.client_mac); ++ udhcp_read_interface(client_data.interface, &client_data.ifindex, NULL, client_data.client_mac); + - //bb_error_msg("sockfd:%d, listen_mode:%d", sockfd, listen_mode); + //bb_error_msg("sockfd:%d, listen_mode:%d", client_data.sockfd, client_data.listen_mode); /* Was opening raw or udp socket here diff --git a/package/utils/busybox/patches/203-udhcpc_renew_no_deconfig.patch b/package/utils/busybox/patches/203-udhcpc_renew_no_deconfig.patch index 6f5d3cc8bf..3d3c0cc403 100644 --- a/package/utils/busybox/patches/203-udhcpc_renew_no_deconfig.patch +++ b/package/utils/busybox/patches/203-udhcpc_renew_no_deconfig.patch @@ -1,7 +1,7 @@ --- a/networking/udhcp/dhcpc.c +++ b/networking/udhcp/dhcpc.c -@@ -1128,7 +1128,6 @@ static void perform_renew(void) - state = RENEW_REQUESTED; +@@ -1126,7 +1126,6 @@ static void perform_renew(void) + client_data.state = RENEW_REQUESTED; break; case RENEW_REQUESTED: /* impatient are we? fine, square 1 */ - udhcp_run_script(NULL, "deconfig"); diff --git a/package/utils/busybox/patches/240-telnetd_intr.patch b/package/utils/busybox/patches/240-telnetd_intr.patch index fec2a3a5d0..773ba44db5 100644 --- a/package/utils/busybox/patches/240-telnetd_intr.patch +++ b/package/utils/busybox/patches/240-telnetd_intr.patch @@ -1,6 +1,6 @@ --- a/networking/telnetd.c +++ b/networking/telnetd.c -@@ -497,6 +497,7 @@ make_new_session( +@@ -509,6 +509,7 @@ make_new_session( /* Restore default signal handling ASAP */ bb_signals((1 << SIGCHLD) + (1 << SIGPIPE), SIG_DFL); diff --git a/package/utils/busybox/patches/250-date-k-flag.patch b/package/utils/busybox/patches/250-date-k-flag.patch index 3a85312e2f..5aadbb233c 100644 --- a/package/utils/busybox/patches/250-date-k-flag.patch +++ b/package/utils/busybox/patches/250-date-k-flag.patch @@ -2,7 +2,7 @@ +++ b/coreutils/date.c @@ -123,6 +123,7 @@ //usage: IF_FEATURE_DATE_ISOFMT( - //usage: "\n -D FMT Use FMT for -d TIME conversion" + //usage: "\n -D FMT Use FMT (strptime format) for -d TIME conversion" //usage: ) +//usage: "\n -k Set Kernel timezone from localtime and exit" //usage: "\n" diff --git a/package/utils/busybox/patches/530-ip-use-rtnl_send_check-on-flush-commands.patch b/package/utils/busybox/patches/530-ip-use-rtnl_send_check-on-flush-commands.patch deleted file mode 100644 index 0e8ec37f80..0000000000 --- a/package/utils/busybox/patches/530-ip-use-rtnl_send_check-on-flush-commands.patch +++ /dev/null @@ -1,214 +0,0 @@ -From 028c5aa18b5273c029f0278232d922ee1a164de6 Mon Sep 17 00:00:00 2001 -From: Denys Vlasenko -Date: Wed, 22 May 2019 13:54:46 +0200 -Subject: ip: use rtnl_send_check() on flush commands, closes 6962 - -function old new delta -rtnl_send_check - 160 +160 -xrtnl_wilddump_request 64 66 +2 -ipneigh_list_or_flush 714 706 -8 -rtnl_send 69 - -69 ------------------------------------------------------------------------------- -(add/remove: 1/1 grow/shrink: 1/1 up/down: 162/-77) Total: 85 bytes - -Signed-off-by: Denys Vlasenko ---- - networking/libiproute/ipaddress.c | 6 ++++-- - networking/libiproute/ipneigh.c | 9 ++++---- - networking/libiproute/iproute.c | 5 ++++- - networking/libiproute/libnetlink.c | 43 +++++++++++++++++++++++++++++++------- - networking/libiproute/libnetlink.h | 19 +++++++++++++++-- - 5 files changed, 65 insertions(+), 17 deletions(-) - ---- a/networking/libiproute/ipaddress.c -+++ b/networking/libiproute/ipaddress.c -@@ -23,6 +23,7 @@ - - struct filter_t { - char *label; -+ /* Flush cmd buf. If !NULL, print_addrinfo() constructs flush commands in it */ - char *flushb; - struct rtnl_handle *rth; - int scope, scopemask; -@@ -34,6 +35,8 @@ struct filter_t { - smallint showqueue; - smallint oneline; - smallint up; -+ /* Misnomer. Does not mean "flushed something" */ -+ /* More like "flush commands were constructed by print_addrinfo()" */ - smallint flushed; - inet_prefix pfx; - } FIX_ALIASING; -@@ -201,7 +204,7 @@ static NOINLINE int print_linkinfo(const - - static int flush_update(void) - { -- if (rtnl_send(G_filter.rth, G_filter.flushb, G_filter.flushp) < 0) { -+ if (rtnl_send_check(G_filter.rth, G_filter.flushb, G_filter.flushp) < 0) { - bb_perror_msg("can't send flush request"); - return -1; - } -@@ -507,7 +510,6 @@ int FAST_FUNC ipaddr_list_or_flush(char - xrtnl_dump_filter(&rth, store_nlmsg, &ainfo); - } - -- - if (G_filter.family && G_filter.family != AF_PACKET) { - struct nlmsg_list **lp; - lp = &linfo; ---- a/networking/libiproute/ipneigh.c -+++ b/networking/libiproute/ipneigh.c -@@ -32,7 +32,10 @@ struct filter_t { - int state; - int unused_only; - inet_prefix pfx; -+ /* Misnomer. Does not mean "flushed N something" */ -+ /* More like "no_of_flush_commands_constructed_by_print_neigh()" */ - int flushed; -+ /* Flush cmd buf. If !NULL, print_neigh() constructs flush commands in it */ - char *flushb; - int flushp; - int flushe; -@@ -45,7 +48,7 @@ typedef struct filter_t filter_t; - - static int flush_update(void) - { -- if (rtnl_send(G_filter.rth, G_filter.flushb, G_filter.flushp) < 0) { -+ if (rtnl_send_check(G_filter.rth, G_filter.flushb, G_filter.flushp) < 0) { - bb_perror_msg("can't send flush request"); - return -1; - } -@@ -299,9 +302,7 @@ static int FAST_FUNC ipneigh_list_or_flu - G_filter.rth = &rth; - - while (round < MAX_ROUNDS) { -- if (xrtnl_wilddump_request(&rth, G_filter.family, RTM_GETNEIGH) < 0) { -- bb_perror_msg_and_die("can't send dump request"); -- } -+ xrtnl_wilddump_request(&rth, G_filter.family, RTM_GETNEIGH); - G_filter.flushed = 0; - if (xrtnl_dump_filter(&rth, print_neigh, NULL) < 0) { - bb_perror_msg_and_die("flush terminated"); ---- a/networking/libiproute/iproute.c -+++ b/networking/libiproute/iproute.c -@@ -26,7 +26,10 @@ - - struct filter_t { - int tb; -+ /* Misnomer. Does not mean "flushed something" */ -+ /* More like "flush commands were constructed by print_route()" */ - smallint flushed; -+ /* Flush cmd buf. If !NULL, print_route() constructs flush commands in it */ - char *flushb; - int flushp; - int flushe; -@@ -53,7 +56,7 @@ typedef struct filter_t filter_t; - - static int flush_update(void) - { -- if (rtnl_send(G_filter.rth, G_filter.flushb, G_filter.flushp) < 0) { -+ if (rtnl_send_check(G_filter.rth, G_filter.flushb, G_filter.flushp) < 0) { - bb_perror_msg("can't send flush request"); - return -1; - } ---- a/networking/libiproute/libnetlink.c -+++ b/networking/libiproute/libnetlink.c -@@ -34,7 +34,7 @@ void FAST_FUNC xrtnl_open(struct rtnl_ha - rth->seq = time(NULL); - } - --int FAST_FUNC xrtnl_wilddump_request(struct rtnl_handle *rth, int family, int type) -+void FAST_FUNC xrtnl_wilddump_request(struct rtnl_handle *rth, int family, int type) - { - struct { - struct nlmsghdr nlh; -@@ -48,18 +48,45 @@ int FAST_FUNC xrtnl_wilddump_request(str - req.nlh.nlmsg_seq = rth->dump = ++rth->seq; - req.g.rtgen_family = family; - -- return rtnl_send(rth, (void*)&req, sizeof(req)); -+ rtnl_send(rth, (void*)&req, sizeof(req)); - } - --//TODO: pass rth->fd instead of full rth? --int FAST_FUNC rtnl_send(struct rtnl_handle *rth, char *buf, int len) -+/* A version which checks for e.g. EPERM errors. -+ * Try: setuidgid 1:1 ip addr flush dev eth0 -+ */ -+int FAST_FUNC rtnl_send_check(struct rtnl_handle *rth, const void *buf, int len) - { -- struct sockaddr_nl nladdr; -+ struct nlmsghdr *h; -+ int status; -+ char resp[1024]; -+ -+ status = write(rth->fd, buf, len); -+ if (status < 0) -+ return status; -+ -+ /* Check for immediate errors */ -+ status = recv(rth->fd, resp, sizeof(resp), MSG_DONTWAIT|MSG_PEEK); -+ if (status < 0) { -+ if (errno == EAGAIN) /* if no error, this happens */ -+ return 0; -+ return -1; -+ } -+ -+ for (h = (struct nlmsghdr *)resp; -+ NLMSG_OK(h, status); -+ h = NLMSG_NEXT(h, status) -+ ) { -+ if (h->nlmsg_type == NLMSG_ERROR) { -+ struct nlmsgerr *err = (struct nlmsgerr*)NLMSG_DATA(h); -+ if (h->nlmsg_len < NLMSG_LENGTH(sizeof(struct nlmsgerr))) -+ bb_error_msg("ERROR truncated"); -+ else -+ errno = -err->error; -+ return -1; -+ } -+ } - -- memset(&nladdr, 0, sizeof(nladdr)); -- nladdr.nl_family = AF_NETLINK; -- -- return xsendto(rth->fd, buf, len, (struct sockaddr*)&nladdr, sizeof(nladdr)); -+ return 0; - } - - int FAST_FUNC rtnl_dump_request(struct rtnl_handle *rth, int type, void *req, int len) ---- a/networking/libiproute/libnetlink.h -+++ b/networking/libiproute/libnetlink.h -@@ -20,7 +20,7 @@ struct rtnl_handle { - - extern void xrtnl_open(struct rtnl_handle *rth) FAST_FUNC; - #define rtnl_close(rth) (close((rth)->fd)) --extern int xrtnl_wilddump_request(struct rtnl_handle *rth, int fam, int type) FAST_FUNC; -+extern void xrtnl_wilddump_request(struct rtnl_handle *rth, int fam, int type) FAST_FUNC; - extern int rtnl_dump_request(struct rtnl_handle *rth, int type, void *req, int len) FAST_FUNC; - extern int xrtnl_dump_filter(struct rtnl_handle *rth, - int (*filter)(const struct sockaddr_nl*, struct nlmsghdr *n, void*) FAST_FUNC, -@@ -34,8 +34,23 @@ extern int rtnl_talk(struct rtnl_handle - int (*junk)(struct sockaddr_nl *,struct nlmsghdr *n, void *), - void *jarg) FAST_FUNC; - --extern int rtnl_send(struct rtnl_handle *rth, char *buf, int) FAST_FUNC; -+int rtnl_send_check(struct rtnl_handle *rth, const void *buf, int len) FAST_FUNC; -+//TODO: pass rth->fd instead of full rth? -+static ALWAYS_INLINE void rtnl_send(struct rtnl_handle *rth, const void *buf, int len) -+{ -+ // Used to be: -+ //struct sockaddr_nl nladdr; -+ //memset(&nladdr, 0, sizeof(nladdr)); -+ //nladdr.nl_family = AF_NETLINK; -+ //return xsendto(rth->fd, buf, len, (struct sockaddr*)&nladdr, sizeof(nladdr)); - -+ // iproute2-4.2.0 simplified the above to: -+ //return send(rth->fd, buf, len, 0); -+ -+ // We are using even shorter: -+ xwrite(rth->fd, buf, len); -+ // and convert to void, inline. -+} - - extern int addattr32(struct nlmsghdr *n, int maxlen, int type, uint32_t data) FAST_FUNC; - extern int addattr_l(struct nlmsghdr *n, int maxlen, int type, void *data, int alen) FAST_FUNC; -- 2.25.1