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# $FreeBSD$
#
# Please read and meditate on netgraph(4), ipacctctl(8) and ngctl(8).
# Enable ng_ipacct (i.e. enable run startup script "ng_ipacct.sh")
#ng_ipacct_enable="YES"
# Enable kernel modules loading.
# On "ng_ipacct.sh start" all kernel modules specified
# in ${ng_ipacct_modules_list} will be loaded.
# Note: on "ng_ipacct.sh stop" only "ng_ipacct" will be unloaded.
ng_ipacct_modules_load="YES"
# Netgraph can load required ng_* modules automatically on the hook creation
# - except for "ng_ether". Generally, preloading modules is recommended.
# Do not add to this list modules which are statically compiled into kernel.
#ng_ipacct_modules_list="netgraph ng_ether ng_cisco ng_socket ng_tee ng_ipacct"
ng_ipacct_modules_list="netgraph ng_ether ng_ipacct"
# List of monitored interfaces. For each interface additional vars must be
# specified in corresponding variables 'ng_ipacct_IFACE_*'.
# See examples below.
#ng_ipacct_interfaces="xl0 cx0 vpn0"
# Default start/stop scripts.
#
# Single quotes is required to preserve newlines.
# '%%iface%%' will be automatically expanded with relevant interface.
# This feature should be applied to reuse indentical rules
# for similar interfaces.
ng_ipacct_default_ether_start='
mkpeer %%iface%%: tee lower right
name %%iface%%:lower %%iface%%_tee
connect %%iface%%: lower upper left
mkpeer %%iface%%_tee: ipacct right2left %%iface%%_in
name %%iface%%_tee:right2left %%iface%%_ip_acct
connect %%iface%%_tee: %%iface%%_ip_acct: left2right %%iface%%_out
'
ng_ipacct_default_ether_stop='
shutdown %%iface%%_ip_acct:
shutdown %%iface%%_tee:
shutdown %%iface%%:
'
ng_ipacct_bpf_ether_start='
mkpeer %%iface%%: tee lower right
name %%iface%%:lower %%iface%%_tee
connect %%iface%%: lower upper left
mkpeer %%iface%%_tee: bpf right2left %%iface%%_in
name %%iface%%_tee:right2left %%iface%%_bpf
connect %%iface%%_tee: right2left left2right %%iface%%_out
mkpeer %%iface%%_bpf: ipacct %%iface%%_match_in %%iface%%_in
name %%iface%%_bpf:%%iface%%_match_in %%iface%%_ip_acct
connect %%iface%%_bpf: %%iface%%_ip_acct: %%iface%%_match_out %%iface%%_out
'
ng_ipacct_bpf_ether_stop='
shutdown %%iface%%_ip_acct:
shutdown %%iface%%_bpf:
shutdown %%iface%%_tee:
shutdown %%iface%%:
'
# EXAMPLE 1. Ethernet interface
# +-------------------------------+
# | |
# (upper) (left2right)-----------(xl0_in)
# | | | |
# xl0 +--(left)-xl0_tee-(right) xl0_ip_acct
# | | | |
# (lower) | (right2left)-----------(xl0_out)
# | |
# +----------+
#
# xl0 - ng_ether
# xl0_tee - ng_tee
# xl0_ip_acct - ng_ipacct
# Configuration for 'xl0_ip_acct' node:
ng_ipacct_xl0_dlt="EN10MB" # required line; see ipacctctl(8)
ng_ipacct_xl0_threshold="15000" # '5000' by default
ng_ipacct_xl0_verbose="yes" # 'yes' by default
ng_ipacct_xl0_saveuid="yes" # 'no' by default
ng_ipacct_xl0_savetime="no" # 'no' by default
ng_ipacct_xl0_start=${ng_ipacct_default_ether_start}
ng_ipacct_xl0_stop=${ng_ipacct_default_ether_stop}
ng_ipacct_xl0_checkpoint_script="path/to/your/script --checkpoint-and-save xl0"
# this script is called on stop (to save accumulated
# data) or via "rc.d/ng_ipacct.sh checkpoint"
# EXAMPLE 2. Cronyx Sigma WAN adapter with HDLC encapsulation
# cx0_hdlc-(downstream)----(rawdata)-cx0
# |
# (inet) (left2right)--------------------(cx0_in)
# | | |
# (left)-cx0_tee-(right)---(inet)-ng0 cx0_ip_acct
# | |
# (right2left)--------------------(cx0_out)
#
# cx0 - ng_cx
# cx0_hdlc - ng_cisco
# cx0_tee - ng_tee
# cx0_ip_acct - ng_ipacct
# Configuration for 'cx0_ip_acct' node:
ng_ipacct_cx0_dlt="RAW"
ng_ipacct_cx0_start='
mkpeer %%iface%%: cisco rawdata downstream
name %%iface%%:rawdata %%iface%%_hdlc
mkpeer %%iface%%_hdlc: tee inet left
name %%iface%%_hdlc:inet %%iface%%_tee
mkpeer %%iface%%_tee: iface right inet
mkpeer %%iface%%_tee: ipacct right2left %%iface%%_in
name %%iface%%_tee:right2left %%iface%%_ip_acct
connect %%iface%%_tee: %%iface%%_ip_acct: left2right %%iface%%_out
'
ng_ipacct_cx0_stop='
shutdown %%iface%%_ip_acct:
shutdown %%iface%%_tee:
shutdown %%iface%%_hdlc:
'
# EXAMPLE 3. PPTP (via mpd), divert traffic to ng_ksocket
# ipfw add tee 4001 ip from any to any via ng0 in
# ipfw add tee 4002 ip from any to any via ng0 out
# USER-LEVEL | KERNEL-LEVEL
# |
# div4 *.4001 ------> | ----> ks_vpn0_in
# | |
# | (inet/raw/divert)------(vpn0_in)
# | |
# | vpn0_ip_acct
# | |
# | (inet/raw/divert)------(vpn0_out)
# | |
# div4 *.4002 ------> | ----> ks_vpn0_out
#
# ks_vpn0_in - ng_ksocket
# ks_vpn0_out - ng_ksocket
# vpn0_ip_acct - ng_ipacct
ng_ipacct_vpn0_dlt="RAW"
ng_ipacct_vpn0_start='
mkpeer ipacct dummy dummy
name .:dummy %%iface%%_ip_acct
mkpeer %%iface%%_ip_acct: ksocket %%iface%%_in inet/raw/divert
name %%iface%%_ip_acct:%%iface%%_in ks_%%iface%%_in
msg ks_%%iface%%_in: bind inet/0.0.0.0:4001
mkpeer %%iface%%_ip_acct: ksocket %%iface%%_out inet/raw/divert
name %%iface%%_ip_acct:%%iface%%_out ks_%%iface%%_out
msg ks_%%iface%%_out: bind inet/0.0.0.0:4002
rmhook .:dummy
'
ng_ipacct_vpn0_stop='
shutdown %%iface%%_ip_acct:
'
# EXAMPLE 4. Ethernet interface with BPF
# +-------------------------------+
# | |
# (upper) (left2right)-----(xl0_in) (xl0_match_in)----(xl0_in)
# | | | | | |
# xl0 +--(left)-xl0_tee-(right) xl0_bpf xl0_ip_acct
# | | | | | |
# (lower) | (right2left)----(xl0_out) (xl0_match_out)--(xl0_out)
# | |
# +----------+
#
# xl0 - ng_ether
# xl0_tee - ng_tee
# xl0_bpf - ng_bpf
# xl0_ip_acct - ng_ipacct
# Configuration for 'xl0_ip_acct' node:
ng_ipacct_xl0_dlt="EN10MB" # required line; see ipacctctl(8)
ng_ipacct_xl0_threshold="15000" # '5000' by default
ng_ipacct_xl0_verbose="yes" # 'yes' by default
ng_ipacct_xl0_saveuid="yes" # 'no' by default
ng_ipacct_xl0_savetime="no" # 'no' by default
ng_ipacct_xl0_start=${ng_ipacct_bpf_ether_start}
ng_ipacct_xl0_stop=${ng_ipacct_bpf_ether_stop}
ng_ipacct_xl0_checkpoint_script="path/to/your/script --checkpoint-and-save xl0"
# this script is called on stop (to save accumulated
# data) or via "rc.d/ng_ipacct.sh checkpoint"
ng_ipacct_xl0_afterstart_script="path/to/your/script --load-bpf-filters xl0"
# this script is called just after initialization
# of nodes to load filters into xl0_bpf
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