Add support for SBFD on UDP port 7784. SBFD is different
in that packets from the reflector will be sent with *source*
port 7784; in all other BFD mechanisms, it is only the
destination port that matters. For SBFD print-udp.c has to
check both source and destination port.
Add missing GET_U_1() wrappers to cover struct igrprte properly again,
also deduplicate some code.
This fixes a buffer over-read introduced in a recent commit 09b9aad and
discovered by Hardik Shah.
Add a test using the capture file supplied by the reporter.
If the upper 2 bits of a label/pointer value are 10, treat that as an
error.
If a name is longer than 255 characters, treat that as an error.
This prevents some long loops with malformed packets, as found by Hardik
Shah.
print "v1-echo" if the echo bit is set in the ADD_ADDR suboption (see
RFC8684 §3.4.1). While at it, dissect the 4 bits after the MPTCP option
subtype when the value is "ADD_ADDR" (0x3), according to protocol v0 and
v1. Add a selftest with a capture taken from a recent Linux kernel
implementation, and fix printout of add-addr in the existing selftests.
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
During development of LSP ping, the embedded timestamps were
changed from struct timeval to NTP time, so update the printer
to match the RFC.
(Cherry-picked from GH #874.)
The SRv6 network programming defines a new IP protocol number [1].
The new protocol number is used in the Next Header field of an IPv6 header
or any extension header indicates that the payload is an Ethernet.
IANA has assigned 143 as the protocol number of ethernet [2].
The SRv6 packet has the following format:
IPv6 HDR + SRH + Ethernet HDR + IPv4/IPv6 packet
This patch allows TCPDUMP to dissect such SRv6 packets.
[1] https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-16#section-9.1
[2] https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml
Signed-off-by: Ahmed Abdelsalam <ahabdels@gmail.com>
As per IEEE std 802.1-AB-2009, 802.3 link aggregation TLV has been
deprecated and link aggregation TLV has been added as an 802.1
TLV. Support for this is given.
This is a follow-up to commit 25687e1a31.
These files come from the Wireshark menagerie:
0031419.pcap (link type 160) and 5632-Raw_D-BUS.cap (first two packets).
Adapted from GitHub pull request #798.
Print " (invalid)" when combinations of V-Flag and L-Flag are invalid.
Update comments (draft -> RFC).
Remove some ND_TCHECK_LEN because GET_ use.
Update the output of isis_sid test because commit
b09710dfcd updated the output format
of the IS-IS dissector.
Adapted from GitHub pull request #768, with some cleanups and an
additional test update to handle the addition of the Unicast flag to the
Hello TLV.
Added a list of RFCs and I-Ds.
RFC6824bis-18 (MPTCP version 1) makes changes to the MPTCP
ADD_ADDR option format.
An HMAC field is added to the option and the IP version field is
removed and replaced with an Echo bit that provides a reliability
mechanism.
This change allows either v0 or v1 ADD_ADDR options
to be parsed and displayed correctly.
Signed-off-by: Peter Krystad <peter.krystad@linux.intel.com>
This implements "IEEE 802.3/Ethernet" mode as described in annex F of
the PTP standard. This uses the same format packets, but directly over
Ethernet instead of encapsulated in UDP.
A new version of MPTCP protocol (RFC8684) has been published, with some
changes to the MP_CAPABLE options handling. Let tcpdump print the protocol
version, and adjust parsing of MP_CAPABLE options according to RFC8684.
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Replace calls to ipaddr_string()/ip6addr_string() with calls to
GET_IPADDR_STRING()/GET_IP6ADDR_STRING() macros performing bounds
checking.
Fix a regression in 78a4ee8222.
This fixes a buffer over-read in ldp_tlv_print() discovered by
Jason Xiaole.
Add a test using the capture file supplied by the reporter updated
to keep only the packet showing the buffer over-read.
- the print routines for ptp different ptp messages
- test completed for sync message, announce message, delay request message,
delay response message and follow up message.
- integration of the ptp v2 code with the tcpdump code.
Signed-off-by: Partha S. Ghosh <psglinux@gmail.com>
