* pcap/pcap_unix.go: fix error when cross compiling to mips

* pcap/pcap_unix.go: fix padding

fixes #67

Signed-off-by: wagner riffel <w@104d.net>

* feat: add RRSIG and DNSKEY record types to DNS layer

* feat: enhance DNS record types.

* feat: implement RRSIG and DNSKEY decoding and encoding
test: add RRSIG and DNSKEY test cases in test file.

From https://go.dev/doc/devel/release#policy
> Each major Go release is supported until there are two newer major releases

* OSPFv2: fix DbDesc LSAheader parse

add missing LSOptions field and fix LSType field offset

* OSPFv2: add test for DbDesc parse with LSAheader

Move offset check within check for vendor extension (221) as this appears to be a bug as the else statement never uses offset+4. Previously this would cause small elements to fail processing as it wasn't limited to only vendor elements.

- Support for decoding MPTCPv0 (RFC6824) and MPTCPv1 (RFC8684) packets
- Tests for MPTCP

Co-authored-by: Nicolas Keukeleire <nicolas.keukeleire@tessares.net>
Co-authored-by: Huang Huang <mozillazg101@gmail.com>

Solution already proposed at google/gopacket#835

The old implementation swaps the bits regardless of the host endianess.

Signed-off-by: wagner riffel <w@104d.net>

Currently this checks whether a type is defined which does not appear to
work. Instead, we check for the specific cases where time64 would be
used instead of time.

Closes #89