Average RTT can be used to update edge weight and propagate it to the network.
tinc dump edges has been also extended to give the current RTT.
New edge weight will change only if the config has EdgeUpdateInterval set to other value than 0.
- Ignore local configuration for editors
- Extended manpage with informations about EdgeUpdateInterval
- Added clone_edge and fixed potential segfault when b->from not defined
- Compute avg_rtt based on the time values we got back in PONG
- Add avg_rtt on dump edge
- Send current time on PING and return it on PONG
- Changed last_ping_time to struct timeval
- Extended edge_t with avg_rtt
In addition to the remote address, each edge now stores the local address from
the point of view of the "from" node. This information is then made available
to other nodes through a backwards-compatible extension to ADD_EDGE messages.
This information can be used in future code to improve packet routing.
The control socket code was completely different from how meta connections are
handled, resulting in lots of extra code to handle requests. Also, not every
operating system has UNIX sockets, so we have to resort to another type of
sockets or pipes for those anyway. To reduce code duplication and make control
sockets work the same on all platforms, we now just connect to the TCP port
where tincd is already listening on.
To authenticate, the program that wants to control a running tinc daemon must
send the contents of a cookie file. The cookie is a random 256 bits number that
is regenerated every time tincd starts. The cookie file should only be readable
by the same user that can start a tincd.
Instead of the binary-ish protocol previously used, we now use an ASCII
protocol similar to that of the meta connections, but this can still change.
This feature is not necessary anymore since we have tools like valgrind today
that can catch stack overflow errors before they make a backtrace in gdb
impossible.
- Convert cp to cp(); so that automatic indenters work.
- Convert constructions like if(x == NULL) to if(!x).
- Move all assignments out of conditions.
- Socket handling revamped to use sockaddr_t.
- tinc can now tunnel over IPv6.
- Handle all addresses and subnets in network byte order.
Only convert them when they need to be printed.
- IPv6 subnets bigger than /128 now work.
- Use %s and strerror(errno) instead of %m.
