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softflowd: add traffic capture filter

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softflowd can filter the traffic with an optional bpf program,
specified on the command-line as a BPF expression

Signed-off-by: Jesus Fernandez Manzano <jesus.manzano@galgus.net>
This commit is contained in:
Jesus Fernandez Manzano 2022-04-26 12:10:23 +02:00 committed by Rosen Penev
parent b05dac5671
commit faf414d0ea
3 changed files with 4 additions and 2 deletions
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2
net/softflowd/Makefile
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@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
PKG_NAME:=softflowd PKG_NAME:=softflowd
PKG_VERSION:=1.0.0 PKG_VERSION:=1.0.0
PKG_RELEASE:=2 PKG_RELEASE:=3
PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
PKG_SOURCE_URL:=https://codeload.github.com/irino/softflowd/tar.gz/softflowd-$(PKG_VERSION)? PKG_SOURCE_URL:=https://codeload.github.com/irino/softflowd/tar.gz/softflowd-$(PKG_VERSION)?

1
net/softflowd/files/softflowd.config
View file

@ -12,3 +12,4 @@ config softflowd
option tracking_level 'full' option tracking_level 'full'
option track_ipv6 '0' option track_ipv6 '0'
option sampling_rate '100' option sampling_rate '100'
option filter ''

3
net/softflowd/files/softflowd.init
View file

@ -29,6 +29,7 @@ start_instance() {
[ "$enabled" -gt 0 ] || return 1 [ "$enabled" -gt 0 ] || return 1
config_get pid_file "$section" 'pid_file' config_get pid_file "$section" 'pid_file'
config_get filter "$section" 'filter'
args="" args=""
append_string "$section" 'interface' '-i' append_string "$section" 'interface' '-i'
@ -45,7 +46,7 @@ start_instance() {
append_bool "$section" track_ipv6 '-6' append_bool "$section" track_ipv6 '-6'
procd_open_instance procd_open_instance
procd_set_param command /usr/sbin/softflowd -d $args${pid_file:+ -p $pid_file} procd_set_param command /usr/sbin/softflowd -d $args${pid_file:+ -p $pid_file} "$filter"
procd_set_param respawn procd_set_param respawn
procd_close_instance procd_close_instance
} }