Remove the inclusion of netinet/sctp.h after enabling SCTP support
in platfroms.h.

The Solaris Studio compiler uses different flags...

Current limitations:
* Chunk parameters are not yet supported.
* Error causes are not yet supported.
* Chunks can't be bundled with COOKIE-ECHO chunks.
* Chunk flags are not supported.
* Chunk lengths are not supported.
* Gap reports and duplicate TSNs are not supported for SACK chunks.
* SCTP related ICMP messages are not supported.
This version is only tested in a limited way, only on FreeBSD and
only in local mode.

This commit adds support for parsing SCTP packets and converting them
to strings. Currently only chunks, parameters and error causes specified
in RFC 4960 are supported. Support for other RFCs will be added in the
future.
Tested on FreeBSD (amd64 and arm) and Linux.

Signed-off-by: Michael Tuexen <tuexen@fh-muenster.de>

This commit adds support for UDPLite as specified in RFC 3828
and the corresponding socket options.
It is tested on FreeBSD 10.1 and Linux, the platforms supporting
UDPLite.

Signed-off-by: Michael Tuexen <tuexen@fh-muenster.de>

Code to parse script packets using an encapsulation layer that is an
MPLS label stack.

The syntax looks like:

  mpls (label 123, tc 1, [S], ttl 255) (label 456, tc 1, [S], ttl 255)

This is borrowed from the syntax from tcpdump, which is:

  MPLS (label 123, exp 1, [S], ttl 255) (label 456, exp 1, [S], ttl 255)

We use "tc" because RFC 5462 renamed the EXP ("experimental") field to
the TC ("traffic class") field. We use lower-case "mpls" instead of
"MPLS" for consistency with other packetdrill protocols, and for ease
of typing.

Change-Id: I2e797aead8605da9fe3f0461594cf7273d4ef0ec

The goal here is to be able to route a prefix of user-configurable
size over the tun device or to the remote packetdrill server, so that
tests can use more than one remote IP. The immediate motivation is
testing GRE, where there is a remote IP for the TCP endpoint and a
separate remote IP for the GRE decapsulator.

Change-Id: I36b7025a242c3803802087c91d284a41c62ca1bd

The main engine for handling encapsualted packets in packetdrill,
including:

- parsing scripts with encapsulation
- parsing packets with encapsulation
- injecting packets with encapsulation

Encapsulated packets look like the following, which has an IP header,
GRE header, and then regular IP/TCP header:

+0 > ipv4 1.1.1.1 > 2.2.2.2: gre: . 1:1001(1000) ack 1

See other patches in the series for more detailed examples.


Change-Id: Ia8c7580e268f5b0347bd9d3fdc73b096f751a79d

For example, FreeBSD 10.0 beta 3 default installation does not have a
"gcc".

Signed-off-by: Neal Cardwell <ncardwell@google.com>

Initial commit for the packetdrill network stack testing tool:

  https://code.google.com/p/packetdrill/



Signed-off-by: Neal Cardwell <ncardwell@google.com>