Because UDP is connectionless we don't have an in-built end-of-stream
signal for our connectivity tests. We work around this by explicitly
adding an end marker to our sample data and killing the listening end once
it is seen.
However, socat has some built-in options - null-eof and shut-null - which
can be used to signal the end of stream with a zero-length UDP packet.
Use these to simplify how the UDP tests are implemented.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Instead of using the 'temp' and 'tempdir' DSL directives to create
temporary files, use fixed paths relative to __STATEDIR__. This has two
advantages:
1) The files are automatically cleaned up if the tests fail (and even if
that doesn't work they're easier to clean up manuall)
2) When debugging tests it's easier to figure out which of the temporary
files are relevant to whatever's going wrong
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
For example, passt/dhcp rather than dhcp/passt. This is more
consistent with the two_guests and other test groups, and makes some
other cleanups simpler.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
