NAME
jool_siit - Interact with SIIT Jool (the kernel module).
DESCRIPTION
Sends commands and requests to SIIT Jool.
SIIT Jool is a kernel module you load into a Linux kernel. It implements RFC 7915.
AVAILABILITY
Linux is the only OS in which this program makes sense.
Kernels 5.15 and up.
SYNTAX
jool_siit [<argp1>] instance (
display
[--csv]
[--no-headers]
| add
[<Instance-Name>]
(--netfilter | --iptables)
[--pool6 <IPv6-prefix>]
| remove
[<Instance-Name>]
| flush
| <help>
)
jool_siit [<argp1>] stats (
display
[--csv]
[--no-headers]
[--all]
[--explain]
| <help>
)
jool_siit [<argp1>] global (
display
[--csv]
[--no-headers]
| update
<Key> <Value>
| <help>
)
jool_siit [<argp1>] eamt (
display
[--csv]
[--no-headers]
| add
<IPv4-prefix> <IPv6-prefix>
[--force]
| remove
<IPv4-prefix> <IPv6-prefix>
| flush
| <help>
)
jool_siit [<argp1>] address (
query [--verbose] <IP-Address>
)
jool_siit [<argp1>] denylist4 (
display
[--csv]
[--no-headers]
| add
<IPv4-prefix>
[--force]
| remove
<IPv4-prefix>
| flush
| <help>
)
jool_siit [<argp1>] file (
handle <JSON-File>
| <help>
)
<argp1> := (<help> | --instance <Name> | --file <File>)
<help> := (--help | --usage | --version)
OPTIONS
Modes and Operations
- instance display
-
Show all instances from all namespaces.
- instance add
-
Create a new instance.
- instance remove
-
Drop an existing instance.
- instance flush
-
Drop all instances from the current namespace.
- stats display
-
Show internal counters.
- global display
-
Show the current values of the instance's tweakable internal variables.
- global update
-
Tweak one of the instance's internal variables.
- eamt display
-
Show the EAM table.
- eamt add
-
Upload an entry to the EAM table.
- eamt remove
-
Drop an entry from the EAM table.
- eamt flush
-
Empty the EAM table.
- address query
-
Print the translated version of the given address using the current configuration.
- denylist4 display
-
Show the denylist.
- denylist4 add
-
Upload an entry to the denylist.
- denylist4 remove
-
Drop an entry from the denylist.
- denylist4 flush
-
Empty the denylist.
- file handle
-
Parse all the configuration from a JSON file.
Create instance if it doesn't exist, update if it does.
Flags
- --instance <Name>
-
Name of the instance you want to interact with.
It's an ASCII string, 15 characters max. Defaults to 'default'.
- --file <File>
-
JSON file which contains the name of the instance you want to interact with.
Same JSON structure as the one from atomic configuration.
- --csv
-
Output in CSV table format.
- --no-headers
-
Do not print table headers. (Nor footer, if applies.)
- --netfilter
-
Sit the instance on top of the Netfilter framework.
- --iptables
-
Sit the instance on top of the iptables framework.
- --pool6 <IPv6-prefix>
-
Contents of the new instance's IPv6 pool.
The format is 'PREFIX_ADDRESS[/PREFIX_LENGTH]'.
- --all
-
Show all the counters.
(Otherwise, only the nonzero ones are printed.)
- --explain
-
Show a description of each counter.
- --verbose
-
Print some details regarding the translation operation.
- --force
-
Apply operation even if certain validations fail.
Other Arguments
- <Key> <Value>
-
Name of the variable you want to edit (see 'Globals' section), and its new value.
- <IPv6-prefix>
-
The format is IPV6_ADDRESS[/PREFIX_LENGTH]. PREFIX_LENGTH defaults to 128.
- <IPv4-prefix>
-
The format is IPV4_ADDRESS[/PREFIX_LENGTH]. PREFIX_LENGTH defaults to 32.
- <Instance-Name>
-
Name of the instance you want to add or remove.
If --instance or --file were included in <argp1>, then the instance names must match.
- <JSON-file>
-
Path to a JSON file.
Globals
- manually-enabled <Boolean>
-
Enable or disable the instance.
- pool6 (<IPv6 Prefix> | null)
-
The IPv6 pool's prefix.
The format is 'PREFIX_ADDRESS[/PREFIX_LENGTH]'.
Use null to clear.
- lowest-ipv6-mtu <Unsigned 32-bit integer>
-
Smallest reachable IPv6 MTU.
- logging-debug <Boolean>
-
Enable logging of debug messages?
- zeroize-traffic-class <Boolean>
-
Always set the IPv6 header's 'Traffic Class' field as zero?
Otherwise copy from IPv4 header's 'TOS'.
- override-tos <Boolean>
-
Override the IPv4 header's 'TOS' field as --tos?
Otherwise copy from IPv6 header's 'Traffic Class'.
- tos <Unsigned 8-bit integer>
-
Value to override TOS as (only when override-tos is ON)
- mtu-plateaus <Comma-separated list of unsigned 16-bit integers>
-
Set the list of plateaus for ICMPv4 Fragmentation Neededs with MTU unset.
- amend-udp-checksum-zero <Boolean>
-
Compute the UDP checksum of IPv4-UDP packets whose value is zero?
Otherwise drop the packet.
- eam-hairpin-mode (simple | intrinsic | off)
-
Defines how EAM+hairpinning is handled.
- randomize-rfc6791-addresses <Boolean>
-
Randomize selection of address from the RFC6791 pool?
Otherwise choose the 'Hop Limit'th address.
- rfc6791v6-prefix (<IPv6 Prefix> | null)
-
IPv6 prefix to generate RFC6791v6 addresses from.
Use null to clear.
- rfc6791v4-prefix (<IPv4 Prefix> | null)
-
IPv4 prefix to generate RFC6791v4 addresses from.
Use null to clear.
- trace <Boolean>
-
Log basic packet fields as they are received?
EXAMPLES
Create a new instance named "Example":
jool_siit instance add Example --iptables
Print the globals:
jool_siit -i Example global display
Change the IPv6 pool prefix:
jool_siit -i Example global update pool6 2001:db8::/96
Print the Explicit Address Mappings Table (EAMT):
jool_siit -i Example eamt display
Add an entry to the EAMT:
jool_siit -i Example eamt add 2001:db8::/120 192.0.2.0/24
Remove an entry from the EAMT:
jool_siit -i Example eamt remove 2001:db8::/120
Add denylist prefix 192.0.2.0/24:
jool_siit -i Example denylist4 add 192.0.2.0/24
Allow translation of 192.0.2.0/24:
jool_siit -i Example denylist4 remove 192.0.2.0/24
NOTES
TRUE, FALSE, 1, 0, YES, NO, ON and OFF are all valid booleans. You can mix case too.
EXIT STATUS
Zero on success, non-zero on failure.
AUTHOR
NIC Mexico & ITESM
REPORTING BUGS
https://github.com/NICMx/Jool/issues
COPYRIGHT
Copyright 2024 NIC Mexico.
License: GPLv2 (GNU GPL version 2)
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO
https://nicmx.github.io/Jool
https://nicmx.github.io/Jool/en/documentation.html