shared-state-dnsmasq_servers: new package

[altergui]

Signed-off-by: Gui Iribarren [email protected]

• a uci-defaults script points dnsmasq to use /var/shared-state/dnsmasq_servers as servers-file
• each node then publishes through shared-state their own dhcp.dnsmasq.domain and anygw ipv6
• each node populates the local /var/shared-state/dnsmasq_servers with all the domains and ipv6s from the other clouds.

[altergui]

this is the start of getting DNS "right" some notes to self:

• shared-state-dnsmasq_hosts and shared-state-dnsmasq_leases have no concept of "cloud domain", and they should. both dhcp leases and dns hosts should be local to the cloud, and not distributed across clouds.

[altergui]

now it works nicely. tested this on a virtual testbed with 12 nodes split among 4 different clouds. i spotted some quirks and added some fixes in various files.

[altergui]

wishlist: implement rev-servers as well right now, each node publishes it's own domain and ipv6 and the result is the following

server=/cloudA.test/fdeb:75d8:5c6d::1
server=/cloudD.test/fd30:7030:8ee3::1
server=/cloudB.test/fd54:721a:3043::1

ideally, each node would also publish it's ipv6 prefix, so the result would be

server=/cloudA.test/fdeb:75d8:5c6d::1
rev-server=fdeb:75d8:5c6d::/64,fdeb:75d8:5c6d::1
server=/cloudD.test/fd30:7030:8ee3::1
rev-server=fd30:7030:8ee3::/64,fd30:7030:8ee3::1
server=/cloudB.test/fd54:721a:3043::1
rev-server=fd54:721a:3043::/64,fd54:721a:3043::1

[codecov-io]

Codecov Report

Merging #812 (9dacffa) into master (19cc376) will decrease coverage by 0.02%. The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master     #812      +/-   ##
==========================================
- Coverage   72.27%   72.25%   -0.03%     
==========================================
  Files          37       37              
  Lines        3293     3294       +1     
==========================================
  Hits         2380     2380              
- Misses        913      914       +1     

Impacted Files	Coverage Δ
...ges/lime-system/files/usr/lib/lua/lime/network.lua	77.53% <0.00%> (-0.29%)	:arrow_down:

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[ilario]

Sorry for not noticing this before: can you update the Makefile to use https://github.com/libremesh/lime-packages/blob/master/libremesh.mk or just change the "category" from LiMe to LibreMesh?

[ilario]

Re-reading the discussion here after years what I understand is: The pull request is ready for merging but requires a firewall to be in place for filtering some stuff coming from the internet, so this depends on #280 and https://github.com/libremesh/libremesh.github.io/pull/139