CVE-2017-13030/PIM: Redo bounds checks and add length checks.

Use ND_TCHECK macros to do bounds checking, and add length checks before
the bounds checks.

Add a bounds check that the review process found was missing.

This fixes a buffer over-read discovered by Bhargava Shastry,
SecT/TU Berlin.

Add a test using the capture file supplied by the reporter(s), modified
so the capture file won't be rejected as an invalid capture.

Update one test output file to reflect the changes.

1 files changed, 0 insertions, 0 deletions

diff --git a/tests/pim_header_asan.pcap b/tests/pim_header_asan.pcap
new file mode 100644
index 00000000..12f81bed
--- /dev/null
+++ b/tests/pim_header_asan.pcap