Add a pair of services:
1. qubes.RegisterBackupLocation - called by dom0, registers what backup
location (including both file and command options) can be accessed.
Registered location gets an ID returned to the caller. The location (and
its ID) is valid as long as the service call remains open.
2. qubes.RestoreById - called by restoring DispVM to retrieve the backup
content. The service expects location ID as an argument, and then list
of files/directories (separated with spaces) on the first line of stdin.
This is very similar to qubes.Restore service, with exception for the
archive location control.
QubesOS/qubes-issues#5310
That allows a build system to customize compiler and linker and pass
extra flags to these.
Remove `-g` as default flag and enable it only when `DEBUG` variable is
set.
qubes-rpc has its own Makefile that's responsible for building some
executables. The root Makefile was installing qubes-rpc files. To make
qubes-rpc a bit more indepdent from core-agent root Makefile and to ease
potential maintainer work on packaging qubes-rpc separately, the
installation has been moved to qubes-rpc Makefile. Moreover that should
make the Makefiles easier to read and maintain.
This makes the qfile packing code reusable, for example for some dom0
tool. Now qfile-agent.c is only an interface for underlying library.
QubesOS/qubes-issues#1324
