* scamper
* add -O dl-any option to scamper, which causes scamper to open a
cooked datalink interface bound to "any" on Linux. Note that
scamper's implementation of -O dl-any currently prevents
transmission of packets on the datalink socket, but this will
change in the future.
* add -O dyn-filter option to scamper, which causes scamper to
dynamically adjust the BPF filter that it configures on a datalink
socket according to TCP/UDP ports that scamper is using. this
option is only available on Linux, and BSD systems with BIOCSETFNR
(FreeBSD and MacOS). note that both -O dyn-filter and -O dl-any
cannot currently be used at the same time, but this will change in
the future.
* only raise SO_SNDBUF and SO_RCVBUF; some systems (e.g. Linux)
already have larger socket buffers than scamper's defaults.
* add -O sockrx to ping, to force ping to receive ICMP responses over
a regular socket, even when using -O dl (which still records datalink
transmit timestamps).
* speed up receiving on datalink sockets by avoiding unnecessary
memsets and removing unused fields, and adjust BSD, Linux, DLPI code
to follow similar code patterns.
* consider both directions for TCP packets on datalink sockets,
allowing datalink transmit timestamps to be recorded for non TCP-syn
packets.
* avoid processing duplicate copies of the same packet on Linux
loopback interface with datalink sockets.
* remove "observe" functionality from scamper control socket, as
signalled over a year ago. "outfile" and "source" will be removed
from the control socket in the future.
OBS-URL: https://build.opensuse.org/package/show/network:utilities/scamper?expand=0&rev=69
