Changing the real and effective user/group IDs and the saved
set-user/group-ID is not enough to get rid of intial access permissions.
The list of groups must be cleared also, otherwise a process changing
from, e.g. `root:root` to `nobody:nobody` retains rights to access
`:wheel` files (assuming `root` is a member of the `wheel` group).
For example:
```
# id
uid=0(root) gid=0(wheel) groups=0(wheel), 2(kmem), 3(sys), 4(tty), 5(operator), 20(staff), 31(guest)
# ./yggdrasil -autoconf -logto /dev/null -user nobody &
[1] 4337
# ps -o command,user,group,supgrp -U nobody
COMMAND USER GROUP SUPGRP
./yggdrasil -aut nobody nobody wheel,kmem,sys,tty,operator,staff,guest
```
Fix that so the process runs as mere
```
COMMAND USER GROUP SUPGRP
./yggdrasil -aut nobody nobody nobody
```
Fixes#927.
different from
https://github.com/yggdrasil-network/yggdrasil-go/pull/817 in that it
can resolve user names, automatically use user's primary gid & allows
specifying gid in the same argument, with `:` eg `username:groupname`.
feel free to criticize & suggest different argument name & description
because i didn't put much of thought to that.
---------
Co-authored-by: Neil <git@neilalexander.dev>
Co-authored-by: VNAT <xepjk@protonmail.com>
Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
This PR updates Ironwood to include the new RTT-based link costing and
updates `yggdrasilctl` to report the cost in `getPeers`.
Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
* Update Debian package
* Don't put `AdminListen` in config by default, fix path in Debian package
* Fix path in unit file
* Preserve original service files for other packages
---------
Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
This change is to display information about the key generation process.
Specifically, two bits of information are now displayed
* The number of threads created to search for keys, and
* The time taken to generate a successful "next best" key
It is expected a syslog implementation be it rsyslog or journald to
have their own timestamping, so there's no point in duplicating that
info.
Signed-off-by: Oleksandr Natalenko <oleksandr@natalenko.name>
* Allow setting link priorities
* Fix a bug
* Allow setting priority on listeners and multicast interfaces
* Update `yggdrasilctl`
* Update to Arceliar/ironwood#5
This refactors the request parsing, as well as improving the output for some request types. It also tweaks `yggdrasilctl` output, which should help with #947.
* Link refactoring
* More refactoring
* More tweaking
* Cleaner shutdowns, UNIX socket support, more tweaks
* Actorise links, remove mutex
* SOCKS support
