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Rodrigo Garcia 14cd04fdc1 [+] kinstall_route printf (temporal) 7 anos atrás
decrypt-lib f603ba2791 [+] inicializacion de modulo rsa desde babeld.c 7 anos atrás
doc-lorauth ff3d81ff38 [fix] doc-lorauth/babel-integration.es.md 7 anos atrás
tokens c8f259da9b [+-] funcion fs en la especificacion 7 anos atrás
.gitattributes a79a2ec330 Add .gitattributes. 13 anos atrás
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Makefile.static 47300f97f6 [+-] Makefile to use shared libs, 7 anos atrás
README.md ff3d81ff38 [fix] doc-lorauth/babel-integration.es.md 7 anos atrás
babeld.c 7e94ae1072 [+] logs lorauth authentication, notes on resend and xroute 7 anos atrás
babeld.h 47300f97f6 [+-] Makefile to use shared libs, 7 anos atrás
babeld.man 556af3c266 Fix omission in manual page. 8 anos atrás
configuration.c d3a9b96c17 Implement interface configuration keyword "type". 8 anos atrás
configuration.h d093352f59 Add ability to return an error message in the local interface. 8 anos atrás
decrypt.c 9a9800d902 [+] GPLv3 license 7 anos atrás
decrypt.h 9a9800d902 [+] GPLv3 license 7 anos atrás
decrypt_tests.c b897b1b658 [fix] doc 7 anos atrás
despliegue.md f1f5e33cee [+-] lorauth-TLV sending [fix] end_message assertion 7 anos atrás
disambiguation.c 14cd04fdc1 [+] kinstall_route printf (temporal) 7 anos atrás
disambiguation.h 553d7eb355 Make disambiguation respect its own header 7 anos atrás
dt 14cd04fdc1 [+] kinstall_route printf (temporal) 7 anos atrás
generate-version.sh aa396f6448 Avoid spaces in babeld version. 8 anos atrás
interface.c 52f83c0025 [-] my_lorauth_cipher [+] basic tests filling cipher 7 anos atrás
interface.h dc0faff47e [fix] decrypt and sending of cipher on lorauth TLV 7 anos atrás
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lorauth.h 9a9800d902 [+] GPLv3 license 7 anos atrás
message.c 3b1208458b [+-] lorauth printf logs, [+] notes 7 anos atrás
message.h 048c3dae88 [+] cipher, clen to resend.h, record_resend 7 anos atrás
neighbour.c 90b6179718 Use calloc instead of malloc in places where it makes sense. 8 anos atrás
neighbour.h a75fd3e63c Add a cost to neighbours, computed from the RTT 11 anos atrás
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notas.md 5d2415247e [fix] segfault after node leaves the net 7 anos atrás
resend.c 048c3dae88 [+] cipher, clen to resend.h, record_resend 7 anos atrás
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route.c 3b1208458b [+-] lorauth printf logs, [+] notes 7 anos atrás
route.h da4049f270 [+-] clen to unsigned short 7 anos atrás
rule.c 6191d12568 Include <sys/time.h> in rule.c. 8 anos atrás
rule.h 72a6264355 Move the table selection into rule.c. 9 anos atrás
set-up.ra.sh 47300f97f6 [+-] Makefile to use shared libs, 7 anos atrás
set-up.sh 1609d4fae1 [fix] cipher token exchanged by local cipher tokens 7 anos atrás
source.c 1609d4fae1 [fix] cipher token exchanged by local cipher tokens 7 anos atrás
source.h dc0faff47e [fix] decrypt and sending of cipher on lorauth TLV 7 anos atrás
util.c 5a082dbb5e Make v4prefix a shared constant between util.c and message.c 7 anos atrás
util.h f4e276ef6f Rename mask_prefix to normalize_prefix. 8 anos atrás
xroute.c 3b1208458b [+-] lorauth printf logs, [+] notes 7 anos atrás
xroute.h dc0faff47e [fix] decrypt and sending of cipher on lorauth TLV 7 anos atrás

README.md

Babeld-lor

(Castellano) Fork de babeld para cubrir algunas necesidades del proyecto LaOtraRed (https://wiki.lapaz.laotrared.net), la característica principal es agregar un mecanismo de autenticación para reducir el riesgo de suplantación de identidad, forzando a los nodos a mostrar que se les ha asignado un espacio de red IPv4 púlbico único por parte del sistema de gestión de nodos de LaOtraRed.

Especificación: doc-lorauth/README.es.md

(English) Babeld fork to cover some needs of LaOtraRed project (https://wiki.lapaz.laotrared.net) , main feature is add an authentication mechanism to reduce the risk of ip spoofing, forcing nodes to show that they have been assigned an unique public IPv4 network space. The entity in charge to assign these public IPv4 network space to each node is meant to be LaOtraRed's nodes managemente system

Specification: doc-lorauth/README.en.md (incomplete)


Babel

Babel is a loop-avoiding distance-vector routing protocol roughly based on HSDV and AODV, but with provisions for link cost estimation and redistribution of routes from other routing protocols.

Installation

$ make
$ su -c 'make install'

If compiling for OpenWRT, you will probably want to say something like

$ make CC=mipsel-linux-gcc PLATFORM_DEFINES='-march=mips32'

On Mac OS X, you'll need to do

$ make LDLIBS=''

Setting up a network for use with Babel

  1. Set up every node's interface --------------------------------

On every node, set up the wireless interface:

# iwconfig eth1 mode ad-hoc channel 11 essid "my-mesh-network"
# ip link set up dev eth1
  1. Set up every node's IP addresses -----------------------------------

You will need to make sure that all of your nodes have a unique IPv6 address, and/or a unique IPv4 address.

On every node, run something like:

# ip addr add 192.168.13.33/32 dev eth1
# ip -6 addr add $(generate-ipv6-address -r)/128 dev eth1

You will find the generate-ipv6-address utility, which can generate random IPv6 addresses according to RFC 4193, on

  https://www.irif.univ-paris-diderot.fr/~jch/software/files/

A note about tunnels and VPNs

Some VPN implementations (notably OpenVPN and Linux GRE) do not automatically add an IPv6 link-local address to the tunnel interface. If you attempt to run Babel over such an interface, it will complain that it ``couldn't allocate requested address''.

The solution is to manually add the link-local address to the interface. This can be done by running e.g.

# ip -6 addr add $(ahcp-generate-address fe80::) dev gre0
  1. Start the routing daemon ---------------------------

Run Babel on every node, specifying the set of interfaces that it should consider:

# babeld eth1

If your node has multiple interfaces which you want to participate in the Babel network, just list them all:

# babeld eth0 eth1 sit1
  1. Setting up an Internet gateway ---------------------------------

If you have one or more Internet gateways on your mesh network, you will want to set them up so that they redistribute the default route. Babel will only redistribute routes with an explicit protocol attached, so you must say something like:

# ip route add 0.0.0.0/0 via 1.2.3.4 dev eth0 proto static

In order to redistribute all routes, you will say:

# babeld -C 'redistribute metric 128' eth1

You may also be more selective in the routes you redistribute, for instance by specifying the interface over which the route goes out:

# babeld -C 'redistribute if eth0 metric 128' eth1

or by constraining the prefix length:

# babeld -C 'redistribute ip ::/0 le 64 metric 128' \
         -C 'redistribute ip 0.0.0.0/0 le 28 metric 128' \
         eth1

You may also want to constrain which local routes (routes to local interface addresses) you advertise:

# babeld -C 'redistribute local if eth1' -C 'redistribute local deny' \
         -C 'redistribute metric 128' \
         eth1

-- Juliusz Chroboczek