StayRTR is an open-source implementation of RPKI to Router protocol (RFC 6810) based on GoRTR using the the Go Programming Language. The maintainer of GoRTR got a new job, so we decided to hard fork.
This project is not affiliated with Cloudflare and any references to Cloudflare are simply a function of forking. We do love the Cloudyflares though!
/libcontains a library to create your own server and client./prefixfilecontains the structure of a JSON export file and signing capabilities./cmd/stayrtr/stayrtr.gois a simple implementation that fetches a list and offers it to a router./cmd/rtrdump/rtrdump.goallows copying the PDUs sent by a RTR server as a JSON file./cmd/rtrmon/rtrmon.gocompare and monitor two RTR servers (using RTR and/or JSON), outputs diff and Prometheus metrics.
This software comes with no warranty.
People probably use this!
- Refreshes a JSON list of prefixes
- Prometheus metrics
- Lightweight
- TLS
- SSH
- Signature verification and expiration control
- Generate a list of prefixes received via RTR into a JSON file
- Lightweight
- TLS
- SSH
You need a working Go environment (1.16 or newer). This project also uses Go Modules.
$ git clone git@github.com:bgp/stayrtr.git && cd stayrtr
$ go build cmd/stayrtr/stayrtr.goIf you do not want to use Docker, please go to the next section.
If you have Docker, you can start StayRTR with docker run -ti -p 8082:8082 rpki/stayrtr someday when it has been built.
You can now use any CLI attributes as long as they are after the image name:
$ docker run -ti -p 8083:8083 rpki/stayrtr -bind :8083If you want to build your own image of StayRTR:
$ docker build -t mystayrtr -f Dockerfile.stayrtr.prod .
$ docker run -ti mystayrtr -hIt will download the code from GitHub and compile it with Go and also generate an ECDSA key for SSH.
Please note: if you plan to use SSH with the default container (rpki/stayrtr),
replace the key private.pem since it is a testing key that has been published.
An example is given below:
$ docker run -ti -v $PWD/mynewkey.pem:/private.pem rpki/stayrtr -ssh.bind :8083There are a few solutions to install it.
Go can directly fetch it from the source
$ go get github.com/bgp/stayrtr/cmd/stayrtrYou can use the Makefile (by default it will be compiled for Linux, add GOOS=darwin for Mac)
$ make build-stayrtrThe compiled file will be in /dist.
Or you can use a tarball file from the Releases page:
Once you have a binary:
$ ./stayrtr -tls.bind 127.0.0.1:8282If you want to package it (deb/rpm), you can use the pre-built docker-compose file.
$ docker-compose -f docker-compose-pkg.yml upYou can find both files in the dist/ directory.
This was tested with a basic Squid proxy. The User-Agent header is passed
in the CONNECT.
You have to export the following two variables in order for StayRTR to use the proxy.
export HTTP_PROXY=schema://host:port
export HTTPS_PROXY=schema://host:port
You can run StayRTR and listen for TLS connections only (just pass -bind "").
First, you will have to create a SSL certificate.
$ openssl ecparam -genkey -name prime256v1 -noout -outform pem > private.pem
$ openssl req -new -x509 -key private.pem -out server.pemThen, you have to run
$ ./stayrtr -ssh.bind :8282 -tls.key private.pem -tls.cert server.pemYou can run StayRTR and listen for SSH connections only (just pass -bind "").
You will have to create an ECDSA key. You can use the following command:
$ openssl ecparam -genkey -name prime256v1 -noout -outform pem > private.pemThen you can start:
$ ./stayrtr -ssh.bind :8282 -ssh.key private.pem -bind ""By default, there is no authentication.
You can use password and key authentication:
For example, to configure user rpki and password rpki:
$ ./stayrtr -ssh.bind :8282 -ssh.key private.pem -ssh.method.password=true -ssh.auth.user rpki -ssh.auth.password rpki -bind ""And to configure a bypass for every SSH key:
$ ./stayrtr -ssh.bind :8282 -ssh.key private.pem -ssh.method.key=true -ssh.auth.key.bypass=true -bind ""StayRTR supports SLURM configuration files (RFC8416).
Create a json file (slurm.json):
{
"slurmVersion": 1,
"validationOutputFilters": {
"prefixFilters": [
{
"prefix": "10.0.0.0/8",
"comment": "Everything inside will be removed"
},
{
"asn": 65001,
},
{
"asn": 65002,
"prefix": "192.168.0.0/24",
},
],
"bgpsecFilters": []
},
"locallyAddedAssertions": {
"prefixAssertions": [
{
"asn": 65001,
"prefix": "2001:db8::/32",
"maxPrefixLength": 48,
"comment": "Manual add"
}
],
"bgpsecAssertions": [
]
}
}
When starting StayRTR, add the -slurm ./slurm.json argument.
The log should display something similar to the following:
INFO[0001] Slurm filtering: 112214 kept, 159 removed, 1 asserted
INFO[0002] New update (112215 uniques, 112215 total prefixes).
For instance, if the original JSON fetched contains the VRP: 10.0.0.0/24-24 AS65001,
it will be removed.
The JSON exported by StayRTR will contain the overrides and the file can be signed again. Others StayRTR can be configured to fetch the VRPs from the filtering StayRTR: the operator manages one SLURM file on a leader StayRTR.
You can check the content provided over RTR with rtrdump tool
$ ./rtrdump -connect 127.0.0.1:8282 -file debug.jsonYou can also fetch the re-generated JSON from the -export.path endpoint (default: http://localhost:9847/rpki.json)
With rtrmon you can monitor the difference between rtr and/or JSON endpoints.
You can use this to, for example, track that your StayRTR instance is still in
sync with your RP instance. Or to track that multiple RP instances are in sync.
If your CA software has an endpoint that exposes objects in the standard JSON format, you can even make sure that the objects that your CA software should generate actually are visible to RPs, to monitor the full cycle.
$ ./rtrmon \
-primary.host tcp://rtr.rpki.cloudflare.com:8282 \
-secondary.host https://console.rpki-client.org/vrps.json \
-secondary.refresh 30s \
-primary.refresh 30s
By default the Prometheus endpoint is on http://[host]:9866/metrics.
Among others, this endpoint contains the following metrics:
rpki_vrps: Current number of VRPS and current difference between the primary and secondary.rtr_serial: Serial of the rtr session (when applicable).rtr_session: Session ID of the RTR session.rtr_state: State of the rtr session (up/down).update: Timestamp of the last update.vrp_diff: The number of VRPs which were seen inlhsat leastvisibility_secondsago not inrhs.
Using these metrics you can visualise or alert on, for example:
- Unexpected behaviour
- Did the number of VRPs drop more than 10% compared to the 24h average?
- Liveliness
- Is the RTR serial increasing?
- Is rtrmon still getting updates?
- Convergence
- Do both my RP instances see the same objects eventually?
- Are objects first visible in the JSON
difference(e.g. 1706) seconds ago visible in RTR?
Use your own validator, as long as the JSON source follows the following schema:
{
"roas": [
{
"prefix": "10.0.0.0/24",
"maxLength": 24,
"asn": 65001
},
...
]
}
- Third-party JSON formatted VRP exports:
- NTT (based on OpenBSD's
rpki-client) - console.rpki-client.org (based on OpenBSD's
rpki-client)
- NTT (based on OpenBSD's
By default, the session ID will be randomly generated. The serial will start at zero.
Make sure the refresh rate of StayRTR is more frequent than the refresh rate of the JSON.
A simple comparison between software and devices. Implementations on versions may vary.
| Device/software | Plaintext | TLS | SSH | Notes |
|---|---|---|---|---|
| RTRdump | Yes | Yes | Yes | |
| RTRlib | Yes | No | Yes | Only SSH key |
| Juniper | Yes | No | No | |
| Cisco | Yes | No | Yes | Only SSH password |
| Alcatel | Yes | No | No | |
| Arista | Yes | No | No | |
| FRRouting | Yes | No | Yes | Only SSH key |
| Bird2 | Yes | No | Yes | Only SSH key |
| Quagga | Yes | No | No | |
| OpenBGPD | Yes | No | No |
Configure a session to the RTR server (assuming it runs on 192.168.1.100:8282)
louis@router> show configuration routing-options validation
group TEST-RPKI {
session 192.168.1.100 {
port 8282;
}
}
Add policies to validate or invalidate prefixes
louis@router> show configuration policy-options policy-statement STATEMENT-EXAMPLE
term RPKI-TEST-VAL {
from {
protocol bgp;
validation-database valid;
}
then {
validation-state valid;
next term;
}
}
term RPKI-TEST-INV {
from {
protocol bgp;
validation-database invalid;
}
then {
validation-state invalid;
reject;
}
}
Display status of the session to the RTR server.
louis@router> show validation session 192.168.1.100 detail
Session 192.168.1.100, State: up, Session index: 1
Group: TEST-RPKI, Preference: 100
Port: 8282
Refresh time: 300s
Hold time: 600s
Record Life time: 3600s
Serial (Full Update): 1
Serial (Incremental Update): 1
Session flaps: 2
Session uptime: 00:25:07
Last PDU received: 00:04:50
IPv4 prefix count: 46478
IPv6 prefix count: 8216
Show content of the database (list the PDUs)
louis@router> show validation database brief
RV database for instance master
Prefix Origin-AS Session State Mismatch
1.0.0.0/24-24 13335 192.168.1.100 valid
1.1.1.0/24-24 13335 192.168.1.100 valid
You may want to use the option to do SSH-based connection.
On Cisco, you can have only one RTR server per IP.
To configure a session for 192.168.1.100:8282:
Replace 65001 by the configured ASN:
router bgp 65001
rpki server 192.168.1.100
transport tcp port 8282
!
!
For an SSH session, you will also have to configure
router bgp 65001 rpki server 192.168.1.100 password xxx
where xxx is the password.
Some experimentations showed you have to configure
the username/password first, otherwise it will not accept the port.
router bgp 65001
rpki server 192.168.1.100
username rpki
transport ssh port 8282
!
!
ssh client tcp-window-scale 14
ssh timeout 120
The last two SSH statements solved an issue causing the connection to break before receiving all the PDUs (TCP window full problem).
To visualize the state of the session:
RP/0/RP0/CPU0:ios#sh bgp rpki server 192.168.1.100
RPKI Cache-Server 192.168.1.100
Transport: SSH port 8282
Connect state: ESTAB
Conn attempts: 1
Total byte RX: 1726892
Total byte TX: 452
Last reset
Timest: Apr 05 01:19:32 (04:26:58 ago)
Reason: protocol error
SSH information
Username: rpki
Password: *****
SSH PID: 18576
RPKI-RTR protocol information
Serial number: 15
Cache nonce: 0x0
Protocol state: DATA_END
Refresh time: 600 seconds
Response time: 30 seconds
Purge time: 60 seconds
Protocol exchange
VRPs announced: 67358 IPv4 11754 IPv6
VRPs withdrawn: 80 IPv4 34 IPv6
Error Reports : 0 sent 0 rcvd
Last protocol error
Reason: response timeout
Detail: response timeout while in DATA_START state
To visualize the accepted PDUs:
RP/0/RP0/CPU0:ios#sh bgp rpki table
Network Maxlen Origin-AS Server
1.0.0.0/24 24 13335 192.168.1.100
1.1.1.0/24 24 13335 192.168.1.100
router bgp <asn>
rpki cache <name>
host <ipv4|ipv6|hostname> [vrf <vrfname>] [port <1-65535>] # default port is 323
local-interface <interface>
preference <1-10> # the lower the value, the more preferred
# default is 5
refresh-interval <1-86400 seconds> # default is 3600
expire-interval <600-172800 seconds> # default is 7200
retry-interval <1-7200 seconds> # default is 600
If multiple caches are configured, the preference controls the priority.
Caches which are more preferred will be connected to first, if they are not reachable then connections will be attempted to less preferred caches.
If caches have the same preference value, they will all be connected to and the VRPs that are synced from them will be merged together.
To visualize the state of the session:
show bgp rpki cache [<name>]
show bgp rpki cache counters [errors]
show bgp rpki roa summary
To visualize the accepted PDUs:
show bgp rpki roa (ipv4|ipv6) [prefix]
Licensed under the BSD 3 License.