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DayOfTheWeek, Month DD, YYYY / The Tcpdump Group
Summary for 5.0.0 tcpdump release (so far!)
Add protocol decoding for:
ERSPAN: Add support
Refine protocol decoding for:
BFD: Add support for S-BFD and spell LAG in uppercase.
BGP: Parse BGP extended message support capability
BGP: Deprecate DPA, ADVERTISER and RCID_PATH path attributes
BGP: Print Enhanced route refresh capability
BGP: Print enhanced route refresh message subtype
BGP: Parse rfc9072 (Extended Optional Parameters Length for BGP OPEN Message)
BGP: Add support for BFD cease subcode
BGP: Add support for Hard Reset notification and GR N flag
BGP: Handle ORF in Route-Refresh messages
BGP: add dissector for BGPsec capability and path
BGP: Add Origin Validation State extended community
BGP: Add support for BGP Role capability and OTC attribute
BGP: Fix most printing code to print directly rather than filling
in a fixed-size buffer to be printed later
ICMP: add dissector for ICMP Interface Identification Object
ICMP: print RFC8335 PROBE extended echo/reply messages.
IEEE 802.11: include the Mesh ID field while printing management
frames.
NetFlow: Use tcp_flag_values[] for TCP flags.
NTP: Check that the entire extension field is in the capture even
if it isn't printed
NTP: Print kiss codes relevant for NTP debugging.
NTP: Use GET_U_1() to replace a direct dereference.
MPTCP: parse MPC data_len field, print flags from MP_CAPABLE option.
OSPF: Fix printing of Traffic Engineering Link TLVs to correctly
advance the packet data pointer
OSPF: Print more truncation indications
OSPF: Add more length checks
pflog: Print some additional fields from the header (picked up
from the FreeBSD tcpdump).
pflog: Handle all types of pflog files (as best as can be done)
pflog: Print the ruleset if it's present, regardless of whether
the subrule is present (inspird by the OpenBSD tcpdump).
pflog: Handle OpenBSD's "rewritten" flag and addresses (adapted
from the OpenBSD tcpdump).
SLL2: Translate interface indices to names on Linux only.
RT6: Add a bounds check for the PadN TLV in Segment Routing Header.
TCP: Add support for the AE (AccECN) flag.
User interface:
Add optional unit suffix on -C file size.
Add --print-sampling to print every Nth packet instead of all.
Add --lengths option to print the captured and original packet lengths.
Add --skip option to skip some packets before writing or printing.
Use a common routine to parse numerical arguments and check its
value.
Source code:
Drop support for building with versions of libpcap that don't
support all the libpcap 1.0 APIs.
Use %zu when printing a sizeof to squelch compiler warnings
Remove unused missing/strdup.c.
(FIXME: somebody please wrap the line below just before the release)
AODV, AppleTalk, BOOTP, CHDLC, DCCP, EAP, EGP, EIGRP, ForCES, Geneve, GRE, ICMP, Juniper, L2TP, LISP, mobile, MSDP, NetFlow, NFLOG, NTP, OLSR, pflog, PGM, RADIUS, RIP, RSVP, SCTP, SNMP, TCP, UDP, vsock: Modernize packet parsing style
DCCP, EGP: Replace custom code with tok2str()
UDP: Clean up address and port printing.
AppleTalk: Declutter appletalk.h.
IEEE 802.11: Simplify handle_action().
Provide GET_ macros for 4-byte and 8-byte floating-point numbers
and use them rather than custom code
Disregard setlinebuf(3), always use setvbuf(3).
Change Sun RPC code licence to BSD-3-Clause.
Use C99 macros to define 64-bit constants and maximum 64-bit
values.
Building and testing:
Autoconf: Remove detection of early IPv6 stacks.
Detect OS IPv6 support using AF_INET6 only.
Remove all remaining support for BSD/OS, IRIX, {OSF/1, Digital Unix,
Tru64 Unix}, SINIX and Ultrix.
Fix compiling on GNU/Hurd.
Make illumos build warning-free.
Makefile.in: Update the .c.o build rule (Remove hacks for old SunOS 4).
Autoconf: fix buggy tests for ether_ntohost().
Makefile.in: Do not install a version-suffixed tcpdump binary if the
.devel file does not exists.
tests: On HP-UX use "diff -c" by default.
autogen.sh: Allow to configure Autoconf warnings.
autogen.sh: Delete all trailing blank lines at end of configure.
Documentation:
man: Clarify the "any" pseudo-interface further.
DayOfTheWeek, Month DD, YYYY / The Tcpdump Group
Summary for 4.99.6 tcpdump release (so far!)
Refine protocol decoding for:
IPv6: Add a missing comma and remove a colon in the output.
TCP: Note if the Urgent Pointer is non-zero while URG flag not set,
if the verbose level is > 1 (option -vv and more).
TCP: Note if the Acknowledgment Number is non-zero while ACK flag not set,
if the verbose level is > 1 (option -vv and more).
TCP: Fix Reset segment processing.
IP, IPv6: Fix setting the snapshot length for the payload.
IP: Use ND_TTEST_LEN() instead of a custom bounds check.
frag6: Add a bounds check in non-verbose mode.
PTP: Remove spaces before colons in output.
PTP: Fix management packet fields.
ISO: Avoid undefined behavior and integer overflow in the fletcher
checksum calculation.
NFS: Delete dead code.
BOOTP: Use an uint16_t variable to get the result of a GET_BE_U_2().
User interface:
Warn that options -A, -x[x] and -X[X] are mutually exclusive.
For PCAP_ERROR_CAPTURE_NOTSUP, show the error message provided
by libpcap for that error if it's non-empty.
Source code:
Fix '-tt' option printing when time > 2106-02-07T06:28:15Z.
Add sub-second packet timestamp checks for invalid micro/nano.
Remove unused missing/snprintf.c.
Windows:
Fixed to find wpcap.dll if WinPcap isn't installed and Npcap was
installed without the WinPcap API compatibility option. (GitHub
issue #1226).
Building and testing:
Makefile.in: Use a local libpcap in the releasecheck target.
CMake: Fix build with CMake 3.31.
autotools, CMake: don't separately test whether snprintf(3) is
available and whether it's suitable - the test for whether it's
suitable also fails if it's unavailable.
CMake: Skip snprintf(3) tests when cross-compiling.
autotools, CMake: fix issues with snprintf test and sanitizers.
CMake: check whether check_c_source_runs() works, treat the build
as a cross-compile if it doesn't work.
Friday, August 30, 2024 / The Tcpdump Group
Summary for 4.99.5 tcpdump release
Refine protocol decoding for:
Arista: Use the test .pcap file from pull request #955 (HwInfo).
BGP: Fix an undefined behavior when it tries to parse a too-short packet.
CARP: Print the protocol name before any GET_().
CDP: only hex-dump unknown TLVs in verbose mode.
DHCP: parse the SZTP redirect tag.
DHCPv6: client-id/server-id DUID type 2 correction; parse the user class,
boot file URL, and SZTP redirect options; add DUID-UUID printing
(RFC6355).
DNS: Detect and correctly handle too-short URI RRs.
EAP: Assign ndo_protocol in the eap_print() function.
ESP: Don't use EVP_add_cipher_alias() (fixes building on OpenBSD 7.5).
Frame Relay (Multilink): Fix the Timestamp Information Element printing.
ICMPv6: Fix printing the Home Agent Address Discovery Reply Message.
IEEE 802.11: no need for an element ID in the structures for IEs, make
the length in the IE structures a u_int, include the "TA" field while
printing Block Ack Control frame.
IP: Enable TSO (TCP Segmentation Offload) support; fix printing invalid
cases as invalid, not truncated; use ND_ICHECKMSG_ZU() to test the
header length.
IPv6: Fix printing invalid cases as invalid, not truncated; use
ND_ICHECKMSG_U() to print an invalid version.
IPv6: Fix invalid 32-bit versus 64-bit printouts of fragment headers.
ISAKMP: Fix printing Delete payload SPI when size is zero.
Kerberos: Print the protocol name, remove a redundant bounds check.
lwres: Fix an undefined behavior in pointer arithmetic.
OpenFlow 1.0: Fix indentation of PORT_MOD, improve handling of
some lengths, and fix handling of snapend.
TCP: Test ports < 1024 in port order to select the printer.
UDP: Move source port equal BCM_LI_PORT to bottom of long if else chain.
UDP: Test ports < 1024 in port order to select the printer.
LDP: Add missing fields of the Common Session Parameters TLV and fix the
offset for the A&D bits.
NFLOG: Use correct AF code points on all OSes.
NFS: Avoid printing non-ASCII characters.
OSPF: Pad TLVs in LS_OPAQUE_TYPE_RI to multiples of 4 bytes.
OSPF: Update LS-Ack printing not to run off the end of the packet.
OSPF6: Fix an undefined behavior.
pflog: Use nd_ types in struct pfloghdr.
PPP: Check if there is some data to hexdump.
PPP: Remove an extra colon before LCP Callback Operation.
Use the buffer stack for de-escaping PPP; fixes CVE-2024-2397;
Note: This problem does not affect any tcpdump release.
PTP: Fix spelling of type SIGNALING, Parse major and minor version
correctly, Print majorSdoId field instead of just the first bit.
RIP: Make a couple trivial protocol updates.
RPKI-Router: Refine length and bounds checks.
RX: Use the "%Y-%m-%d" date format.
smbutil.c: Use the "%Y-%m-%d" date format.
SNMP: Fix two undefined behaviors.
Text protocols: Fix printing truncation if it is not the case.
ZEP: Use the "%Y-%m-%d" date format.
ZMTP: Replace custom code with bittok2str().
User interface:
Print the supported time stamp types (-J) to stdout instead of stderr.
Print the list of data link types (-L) to stdout instead of stderr.
Use symmetrical quotation characters in error messages.
Update --version option to print 32/64-bit build and time_t size.
Improve error messages for invalid interface indexes specified
with -i.
Support "3des" as an alias for "des_ede3_cbc" even if the crypto
library doesn't support adding aliases.
Source code:
tcpdump: Fix a memory leak.
child_cleanup: reap as many child processes as possible.
Ignore failures when setting the default "any" device DLL to LINUX_SLL2.
Fix for backends which doesn't support capsicum.
Update ND_BYTES_BETWEEN() macro for better accuracy.
Update ND_BYTES_AVAILABLE_AFTER() macro for better accuracy.
Introduce new ND_ICHECK*() macros to deduplicate more code.
Skip privilege dropping when using -Z root on --with-user builds.
Add a nd_printjn() function.
Make nd_trunc_longjmp() not static inline.
Include <time.h> from netdissect.h.
Remove init_crc10_table() and the entourage.
Initialize tzcode early.
Capsicum support: Fix a 'not defined' macro error.
Update the "Error converting time" tests for packet times.
Fix warnings when building for 32-bit and defining _TIME_BITS=64.
Free interface list just before exiting where it wasn't being
freed.
Building and testing:
Add a configure option to help debugging (--enable-instrument-functions).
At build time require a proof of suitable snprintf(3) implementation in
libc (and document Solaris 9 as unsupported because of that).
Makefile.in: Add two "touch .devel" commands in the releasecheck target.
Autoconf: Get --with-user and --with-chroot right.
Autoconf: Fix --static-pcap-only test on Solaris 10.
Autoconf: Add some warning flags for clang 13 or newer.
Autoconf: Update config.{guess,sub}, timestamps 2024-01-01.
Autoconf: Add autogen.sh, remove configure and config.h.in and put
these generated files in the release tarball.
Autoconf: Update the install-sh script to the 2020-11-14.01 version.
configure: Apply autoupdate 2.69.
CMake: improve the comment before project(tcpdump C).
Do not require vsnprintf().
tests: Use the -tttt option, by default, for the tests.
Autoconf, CMake: Get the size of a void * and a time_t.
Fix propagation of cc_werr_cflags() output.
Makefile.in: Fix the depend target.
mkdep: Exit with a non-zero status if a command fails.
Autoconf: use V_INCLS to update the list of include search paths.
Autoconf: don't put anything before -I and -L flags for local libpcap.
Autoconf, CMake: work around an Xcode 15+ issue.
Autoconf, CMake: use pkg-config and Homebrew when looking for
libcrypto.
Fix Sun C invocation from CMake.
mkdep: Use TMPDIR if it is set and not null.
Add initial support for building with TinyCC.
Makefile.in: Use the variable MAKE instead of the make command.
Makefile.in: Add instrumentation configuration in releasecheck target.
Make various improvements to the TESTrun script.
Untangle detection of pcap_findalldevs().
Autoconf: don't use egrep, use $EGREP.
Autoconf: check for gethostbyaddr(), not gethostbyname().
Autoconf, CMake: search for gethostbyaddr() in libnetwork.
Make illumos build warning-free.
Documentation:
Fixed errors in doc/README.Win32.md and renamed it to README.windows.md.
Make various improvements to the man page.
Add initial README file for Haiku.
Make various improvements to CONTRIBUTING.md.
Friday, April 7, 2023 / The Tcpdump Group
Summary for 4.99.4 tcpdump release
Source code:
Fix spaces before tabs in indentation.
Updated printers:
LSP ping: Fix "Unused value" warnings from Coverity.
CVE-2023-1801: Fix an out-of-bounds write in the SMB printer.
DNS: sync resource types with IANA.
ICMPv6: Update the output to show a RPL DAO field name.
Geneve: Fix the Geneve UDP port test.
Building and testing:
Require at least autoconf 2.69.
Don't check for strftime(), as it's in C90 and beyond.
Update config.{guess,sub}, timestamps 2023-01-01,2023-01-21.
Documentation:
man: Document TCP flag names better.
Thursday, January 12, 2023 / The Tcpdump Group
Summary for 4.99.3 tcpdump release
Updated printers:
PTP: Use the proper values for the control field and print un-allocated
values for the message field as "Reserved" instead of "none".
Source code:
smbutil.c: Replace obsolete function call (asctime)
Building and testing:
cmake: Update the minimum required version to 2.8.12 (except Windows).
CI: Introduce and use TCPDUMP_CMAKE_TAINTED.
Makefile.in: Add the releasecheck target.
Makefile.in: Add "make -s install" in the releasecheck target.
Cirrus CI: Run the "make releasecheck" command in the Linux task.
Makefile.in: Add the whitespacecheck target.
Cirrus CI: Run the "make whitespacecheck" command in the Linux task.
Address all shellcheck warnings in update-test.sh.
Makefile.in: Get rid of a remain of gnuc.h.
Documentation:
Reformat the installation notes (INSTALL.txt) in Markdown.
Convert CONTRIBUTING to Markdown.
CONTRIBUTING.md: Document the use of "protocol: " in a commit summary.
Add a README file for NetBSD.
Fix CMake build to set man page section numbers in tcpdump.1
Saturday, December 31, 2022 / The Tcpdump Group
Summary for 4.99.2 tcpdump release
Updated printers:
BGP: Update cease notification decoding to RFC 9003.
BGP: decode BGP link-bandwidth extended community properly.
BGP: Fix parsing the AIGP attribute
BGP: make sure the path attributes don't go past the end of the packet.
BGP: Shutdown message can be up to 255 bytes length according to rfc9003
DSA: correctly determine VID.
EAP: fix some length checks and output issues.
802.11: Fix the misleading comment regarding "From DS", "To DS" Frame
Control Flags.
802.11: Fetch the CF and TIM IEs a field at a time.
802.15.4, BGP, LISP: fix some length checks, compiler warnings,
and undefined behavior warnings.
PFLOG: Handle LINKTYPE_PFLOG/DLT_PFLOG files from all OSes on all
OSes.
RRCP: support more Realtek protocols than just RRCP.
MPLS: show the EXP field as TC, as per RFC 5462.
ICMP: redo MPLS Extension code as general ICMP Extension code.
VQP: Do not print unknown error codes twice.
Juniper: Add some bounds checks.
Juniper: Don't treat known DLT_ types as "Unknown".
lwres: Fix a length check, update a variable type.
EAP: Fix some undefined behaviors at runtime.
Ethernet: Rework the length checks, add a length check.
IPX: Add two length checks.
Zephyr: Avoid printing non-ASCII characters.
VRRP: Print the protocol name before any GET_().
DCCP: Get rid of trailing commas in lists.
Juniper: Report invalid packets as invalid, not truncated.
IPv6: Remove an obsolete code in an always-false #if wrapper.
ISAKMP: Use GET_U_1() to replace a direct dereference.
RADIUS: Use GET_U_1() to replace a direct dereference.
TCP: Fix an invalid check.
RESP: Fix an invalid check.
RESP: Remove an unnecessary test.
Arista: Refine the output format and print HwInfo.
sFlow: add support for IPv6 agent, add a length check.
VRRP: add support for IPv6.
OSPF: Update to match the Router Properties registry.
OSPF: Remove two unnecessary dereferences.
OSPF: Add support bit Nt RFC3101.
OSPFv3: Remove two unnecessary dereferences.
ICMPv6: Fix output for Router Renumbering messages.
ICMPv6: Fix the Node Information flags.
ICMPv6: Remove an unused macro and extra blank lines.
ICMPv6: Add a length check in the rpl_dio_print() function.
ICMPv6: Use GET_IP6ADDR_STRING() in the rpl_dio_print() function.
IPv6: Add some checks for the Hop-by-Hop Options header
IPv6: Add a check for the Jumbo Payload Hop-by-Hop option.
NFS: Fix the format for printing an unsigned int
PTP: fix printing of the correction fields
PTP: Use ND_LCHECK_U for checking invalid length.
WHOIS: Add its own printer source file and printer function
MPTCP: print length before subtype inside MPTCP options
ESP: Add a workaround to a "use-of-uninitialized-value".
PPP: Add tests to avoid incorrectly re-entering ppp_hdlc().
PPP: Don't process further if protocol is unknown (-e option).
PPP: Change the pointer to packet data.
ZEP: Add three length checks.
Add some const qualifiers.
Building and testing:
Update config.guess and config.sub.
Use AS_HELP_STRING macro instead of AC_HELP_STRING.
Handle some Autoconf/make errors better.
Fix an error when cross-compiling.
Use "git archive" for the "make releasetar" process.
Remove the release candidate rcX targets.
Mend "make check" on Solaris 9 with Autoconf.
Address assorted compiler warnings.
Fix auto-enabling of Capsicum on FreeBSD with Autoconf.
Treat "msys" as Windows for test exit statuses.
Clean up some help messages in configure.
Use unified diff by default.
Remove awk code from mkdep.
Fix configure test errors with Clang 15
CMake: Prevent stripping of the RPATH on installation.
AppVeyor CI: update Npcap site, update to 1.12 SDK.
Cirrus CI: Use the same configuration as for the main branch.
CI: Add back running tcpdump -J/-L and capture, now with Cirrus VMs.
Remove four test files (They are now in the libpcap tests directory).
On Solaris, for 64-bit builds, use the 64-bit pcap-config.
Tell CMake not to check for a C++ compiler.
CMake: Add a way to request -Werror and equivalents.
configure: Special-case macOS /usr/bin/pcap-config as we do in CMake.
configure: Use pcap-config --static-pcap-only if available.
configure: Use ac_c_werror_flag to force unknown compiler flags to fail.
configure: Use AC_COMPILE_IFELSE() and AC_LANG_SOURCE() for testing
flags.
Run the test that fails on OpenBSD only if we're not on OpenBSD.
Source code:
Fix some snapend-changing routines to protect against pointer
underflow.
Use __func__ from C99 in some function calls.
Memory allocator: Update nd_add_alloc_list() to a static function.
addrtoname.c: Fix two invalid tests.
Use more S_SUCCESS and S_ERR_HOST_PROGRAM in main().
Add some comments about "don't use GET_IP6ADDR_STRING()".
Assign ndo->ndo_packetp in pretty_print_packet().
Add ND_LCHECKMSG_U, ND_LCHECK_U, ND_LCHECKMSG_ZU and ND_LCHECK_ZU macros.
Update tok2strbuf() to a static function.
netdissect.h: Keep the link-layer dissectors names sorted.
setsignal(): Set SA_RESTART on non-lethal signals (REQ_INFO, FLUSH_PCAP)
to avoid corrupting binary pcap output.
Use __builtin_unreachable().
Fail if nd_push_buffer() or nd_push_snaplen() fails.
Improve code style and fix many typos.
Documentation:
Some man page cleanups.
Update the print interface for the packet count to stdout.
Note that we require compilers to support at least some of C99.
Update AIX and Solaris-related specifics.
INSTALL.txt: Add doc/README.*, delete the deleted win32 directory.
Update README.md and README.Win32.md.
Update some comments with new RFC numbers.
Wednesday, June 9, 2021 by gharris
Summary for 4.99.1 tcpdump release
Source code:
Squelch some compiler warnings
ICMP: Update the snapend for some nested IP packets.
MACsec: Update the snapend thus the ICV field is not payload
for the caller.
EIGRP: Fix packet header fields
SMB: Disable printer by default in CMake builds
OLSR: Print the protocol name even if the packet is invalid
MSDP: Print ": " before the protocol name
ESP: Remove padding, padding length and next header from the buffer
DHCPv6: Update the snapend for nested DHCPv6 packets
OpenFlow 1.0: Get snapend right for nested frames.
TCP: Update the snapend before decoding a MPTCP option
Ethernet, IEEE 802.15.4, IP, L2TP, TCP, ZEP: Add bounds checks
ForCES: Refine SPARSEDATA-TLV length check.
ASCII/hex: Use nd_trunc_longjmp() in truncation cases
GeoNet: Add a ND_TCHECK_LEN() call
Replace ND_TCHECK_/memcpy() pairs with GET_CPY_BYTES().
BGP: Fix overwrites of global 'astostr' temporary buffer
ARP: fix overwrites of static buffer in q922_string().
Frame Relay: have q922_string() handle errors better.
Building and testing:
Rebuild configure script when building release
Fix "make clean" for out-of-tree autotools builds
CMake: add stuff from CMAKE_PREFIX_PATH to PKG_CONFIG_PATH.
Documentation:
man: Update a reference as www.cifs.org is gone.
man: Update DNS sections
Solaris:
Fix a compile error with Sun C
Wednesday, December 30, 2020, by [email protected], denis and fxl.
Summary for 4.99.0 tcpdump release
CVE-2018-16301: For the -F option handle large input files safely.
Improve the contents, wording and formatting of the man page.
Print unsupported link-layer protocol packets in hex.
Add support for new network protocols and DLTs: Arista, Autosar SOME/IP,
Broadcom LI and Ethernet switches tag, IEEE 802.15.9, IP-over-InfiniBand
(IPoIB), Linux SLL2, Linux vsockmon, MACsec, Marvell Distributed Switch
Architecture, OpenFlow 1.3, Precision Time Protocol (PTP), SSH, WHOIS,
ZigBee Encapsulation Protocol (ZEP).
Make protocol-specific updates for: AH, DHCP, DNS, ESP, FRF.16, HNCP,
ICMP6, IEEE 802.15.4, IPv6, IS-IS, Linux SLL, LLDP, LSP ping, MPTCP, NFS,
NSH, NTP, OSPF, OSPF6, PGM, PIM, PPTP, RADIUS, RSVP, Rx, SMB, UDLD,
VXLAN-GPE.
User interface:
Make SLL2 the default for Linux "any" pseudo-device.
Add --micro and --nano shorthands.
Add --count to print a counter only instead of decoding.
Add --print, to cause packet printing even with -w.
Add support for remote capture if libpcap supports it.
Display the "wireless" flag and connection status.
Flush the output packet buffer on a SIGUSR2.
Add the snapshot length to the "reading from file ..." message.
Fix local time printing (DST offset in timestamps).
Allow -C arguments > 2^31-1 GB if they can fit into a long.
Handle very large -f files by rejecting them.
Report periodic stats only when safe to do so.
Print the number of packets captured only as often as necessary.
With no -s, or with -s 0, don't specify the snapshot length with newer
versions of libpcap.
Improve version and usage message printing.
Building and testing:
Install into bindir, not sbindir.
autoconf: replace --with-system-libpcap with --disable-local-libpcap.
Require the compiler to support C99.
Better detect and use various C compilers and their features.
Add CMake as the second build system.
Make out-of-tree builds more reliable.
Use pkg-config to detect libpcap if available.
Improve Windows support.
Add more tests and improve the scripts that run them.
Test both with "normal" and "x87" floating-point.
Eliminate dependency on libdnet.
FreeBSD:
Print a proper error message about monitor mode VAP.
Use libcasper if available.
Fix failure to capture on RDMA device.
Include the correct capsicum header.
Source code:
Start the transition to longjmp() for packet truncation handling.
Introduce new helper functions, including GET_*(), nd_print_protocol(),
nd_print_invalid(), nd_print_trunc(), nd_trunc_longjmp() and others.
Put integer signedness right in many cases.
Introduce nd_uint*, nd_mac_addr, nd_ipv4 and nd_ipv6 types to fix
alignment issues, especially on SPARC.
Fix many C compiler, Coverity, UBSan and cppcheck warnings.
Fix issues detected with AddressSanitizer.
Remove many workarounds for older compilers and OSes.
Add a sanity check on packet header length.
Add and remove plenty of bounds checks.
Clean up pcap_findalldevs() call to find the first interface.
Use a short timeout, rather than immediate mode, for text output.
Handle DLT_ENC files *not* written on the same OS and byte-order host.
Add, and use, macros to do locale-independent case mapping.
Use a table instead of getprotobynumber().
Get rid of ND_UNALIGNED and ND_TCHECK().
Make roundup2() generally available.
Resync SMI list against Wireshark.
Fix many typos.
Friday, September 20, 2019, by [email protected]
A huge thank you to Denis, Francois-Xavier and Guy who did much of the heavy lifting.
Summary for 4.9.3 tcpdump release
Fix buffer overflow/overread vulnerabilities:
CVE-2017-16808 (AoE)
CVE-2018-14468 (FrameRelay)
CVE-2018-14469 (IKEv1)
CVE-2018-14470 (BABEL)
CVE-2018-14466 (AFS/RX)
CVE-2018-14461 (LDP)
CVE-2018-14462 (ICMP)
CVE-2018-14465 (RSVP)
CVE-2018-14881 (BGP)
CVE-2018-14464 (LMP)
CVE-2018-14463 (VRRP)
CVE-2018-14467 (BGP)
CVE-2018-10103 (SMB - partially fixed, but SMB printing disabled)
CVE-2018-10105 (SMB - too unreliably reproduced, SMB printing disabled)
CVE-2018-14880 (OSPF6)
CVE-2018-16451 (SMB)
CVE-2018-14882 (RPL)
CVE-2018-16227 (802.11)
CVE-2018-16229 (DCCP)
CVE-2018-16230 (BGP)
CVE-2018-16452 (SMB)
CVE-2018-16300 (BGP)
CVE-2018-16228 (HNCP)
CVE-2019-15166 (LMP)
CVE-2019-15167 (VRRP)
Fix for cmdline argument/local issues:
CVE-2018-14879 (tcpdump -V)
Sunday September 3, 2017 [email protected]
Summary for 4.9.2 tcpdump release
Do not use getprotobynumber() for protocol name resolution. Do not do
any protocol name resolution if -n is specified.
Improve errors detection in the test scripts.
Fix a segfault with OpenSSL 1.1 and improve OpenSSL usage.
Clean up IS-IS printing.
Fix buffer overflow vulnerabilities:
CVE-2017-11543 (SLIP)
CVE-2017-13011 (bittok2str_internal)
Fix infinite loop vulnerabilities:
CVE-2017-12989 (RESP)
CVE-2017-12990 (ISAKMP)
CVE-2017-12995 (DNS)
CVE-2017-12997 (LLDP)
Fix buffer over-read vulnerabilities:
CVE-2017-11541 (safeputs)
CVE-2017-11542 (PIMv1)
CVE-2017-12893 (SMB/CIFS)
CVE-2017-12894 (lookup_bytestring)
CVE-2017-12895 (ICMP)
CVE-2017-12896 (ISAKMP)
CVE-2017-12897 (ISO CLNS)
CVE-2017-12898 (NFS)
CVE-2017-12899 (DECnet)
CVE-2017-12900 (tok2strbuf)
CVE-2017-12901 (EIGRP)
CVE-2017-12902 (Zephyr)
CVE-2017-12985 (IPv6)
CVE-2017-12986 (IPv6 routing headers)
CVE-2017-12987 (IEEE 802.11)
CVE-2017-12988 (telnet)
CVE-2017-12991 (BGP)
CVE-2017-12992 (RIPng)
CVE-2017-12993 (Juniper)
CVE-2017-12994 (BGP)
CVE-2017-12996 (PIMv2)
CVE-2017-12998 (ISO IS-IS)
CVE-2017-12999 (ISO IS-IS)
CVE-2017-13000 (IEEE 802.15.4)
CVE-2017-13001 (NFS)
CVE-2017-13002 (AODV)
CVE-2017-13003 (LMP)
CVE-2017-13004 (Juniper)
CVE-2017-13005 (NFS)
CVE-2017-13006 (L2TP)
CVE-2017-13007 (Apple PKTAP)
CVE-2017-13008 (IEEE 802.11)
CVE-2017-13009 (IPv6 mobility)
CVE-2017-13010 (BEEP)
CVE-2017-13012 (ICMP)
CVE-2017-13013 (ARP)
CVE-2017-13014 (White Board)
CVE-2017-13015 (EAP)
CVE-2017-11543 (SLIP)
CVE-2017-13016 (ISO ES-IS)
CVE-2017-13017 (DHCPv6)
CVE-2017-13018 (PGM)
CVE-2017-13019 (PGM)
CVE-2017-13020 (VTP)
CVE-2017-13021 (ICMPv6)
CVE-2017-13022 (IP)
CVE-2017-13023 (IPv6 mobility)
CVE-2017-13024 (IPv6 mobility)
CVE-2017-13025 (IPv6 mobility)
CVE-2017-13026 (ISO IS-IS)
CVE-2017-13027 (LLDP)
CVE-2017-13028 (BOOTP)
CVE-2017-13029 (PPP)
CVE-2017-13030 (PIM)
CVE-2017-13031 (IPv6 fragmentation header)
CVE-2017-13032 (RADIUS)
CVE-2017-13033 (VTP)
CVE-2017-13034 (PGM)
CVE-2017-13035 (ISO IS-IS)
CVE-2017-13036 (OSPFv3)
CVE-2017-13037 (IP)
CVE-2017-13038 (PPP)
CVE-2017-13039 (ISAKMP)
CVE-2017-13040 (MPTCP)
CVE-2017-13041 (ICMPv6)
CVE-2017-13042 (HNCP)
CVE-2017-13043 (BGP)
CVE-2017-13044 (HNCP)
CVE-2017-13045 (VQP)
CVE-2017-13046 (BGP)
CVE-2017-13047 (ISO ES-IS)
CVE-2017-13048 (RSVP)
CVE-2017-13049 (Rx)
CVE-2017-13050 (RPKI-Router)
CVE-2017-13051 (RSVP)
CVE-2017-13052 (CFM)
CVE-2017-13053 (BGP)
CVE-2017-13054 (LLDP)
CVE-2017-13055 (ISO IS-IS)
CVE-2017-13687 (Cisco HDLC)
CVE-2017-13688 (OLSR)
CVE-2017-13689 (IKEv1)
CVE-2017-13690 (IKEv2)
CVE-2017-13725 (IPv6 routing headers)
Sunday July 23, 2017 [email protected]
Summary for 4.9.1 tcpdump release
CVE-2017-11108/Fix bounds checking for STP.
Make assorted documentation updates and fix a few typos in tcpdump output.
Fixup -C for file size >2GB (GH #488).
Show AddressSanitizer presence in version output.
Fix a bug in test scripts (exposed in GH #613).
On FreeBSD adjust Capsicum capabilities for netmap.
On Linux fix a use-after-free when the requested interface does not exist.
Wednesday January 18, 2017 [email protected]
Summary for 4.9.0 tcpdump release
General updates:
Fix some heap overflows found with American Fuzzy Lop by Hanno Boeck and others
(More information in the log with CVE-2016-* and CVE-2017-*)
Change the way protocols print link-layer addresses (Fix heap overflows
in CALM-FAST and GeoNetworking printers)
Pass correct caplen value to ether_print() and some other functions
Fix lookup_nsap() to match what isonsap_string() expects
Clean up relative time stamp printing (Fix an array overflow)
Fix some alignment issues with GCC on Solaris 10 SPARC
Add some ND_TTEST_/ND_TCHECK_ macros to simplify writing bounds checks
Add a fn_printztn() which returns the number of bytes processed
Add nd_init() and nd_cleanup() functions. Improve libsmi support
Add CONTRIBUTING file
Add a summary comment in all printers
Compile with more warning options in devel mode if supported (-Wcast-qual, ...)
Fix some leaks found by Valgrind/Memcheck
Fix a bunch of de-constifications
Squelch some Coverity warnings and some compiler warnings
Update Coverity and Travis-CI setup
Update Visual Studio files
Frontend:
Fix capsicum support to work with zerocopy buffers in bpf
Try opening interfaces by name first, then by name-as-index
Work around pcap_create() failures fetching time stamp type lists
Fix a segmentation fault with 'tcpdump -J'
Improve addrtostr6() bounds checking
Add exit_tcpdump() function
Don't drop CAP_SYS_CHROOT before chrooting
Fixes issue where statistics not reported when -G and -W options used
Updated printers:
802.11: Beginnings of 11ac radiotap support
802.11: Check the Protected bit for management frames
802.11: Do bounds checking on last_presentp before dereferencing it (Fix a heap overflow)
802.11: Fix the radiotap printer to handle the special bits correctly
802.11: If we have the MCS field, it's 11n
802.11: Only print unknown frame type or subtype messages once
802.11: Radiotap dBm values get printed as dB; Update a test output accordingly
802.11: Source and destination addresses were backwards
AH: Add a bounds check
AH: Report to our caller that dissection failed if a bounds check fails
AP1394: Print src > dst, not dst > src
ARP: Don't assume the target hardware address is <= 6 octets long (Fix a heap overflow)
ATALK: Add bounds and length checks (Fix heap overflows)
ATM: Add some bounds checks (Fix a heap overflow)
ATM: Fix an incorrect bounds check
BFD: Update specification from draft to RFC 5880
BFD: Update to print optional authentication field
BGP: Add support for the AIGP attribute (RFC7311)
BGP: Print LARGE_COMMUNITY Path Attribute
BGP: Update BGP numbers from IANA; Print minor values for FSM notification
BOOTP: Add a bounds check
Babel: Add decoder for source-specific extension
CDP: Filter out non-printable characters
CFM: Fixes to match the IEEE standard, additional bounds and length checks
CSLIP: Add more bounds checks (Fix a heap overflow)
ClassicalIPoATM: Add a bounds check on LLC+SNAP header (Fix a heap overflow)
DHCP: Fix MUDURL and TZ options
DHCPv6: Process MUDURL and TZ options
DHCPv6: Update Status Codes with RFCs/IANA names
DNS: Represent the "DNSSEC OK" bit as "DO" instead of "OK". Add a test case
DTP: Improve packet integrity checks
EGP: Fix bounds checks
ESP: Don't use OpenSSL_add_all_algorithms() in OpenSSL 1.1.0 or later
Ethernet: Add some bounds checking before calling isoclns_print (Fix a heap overflow)
Ethernet: Print the Length/Type field as length when needed
FDDI: Fix -e output for FDDI
FR: Add some packet-length checks and improve Q.933 printing (Fix heap overflows)
GRE: Add some bounds checks (Fix heap overflows)
Geneve: Fix error message with invalid option length; Update list option classes
HNCP: Fix incorrect time interval format. Fix handling of IPv4 prefixes
ICMP6: Fetch a 32-bit big-endian quantity with EXTRACT_32BITS()
IGMP: Add a length check
IP: Add a bounds check (Fix a heap overflow)
IP: Check before fetching the protocol version (Fix a heap overflow)
IP: Don't try to dissect if IP version != 4 (Fix a heap overflow)
IP: Stop processing IPPROTO_ values once we hit IPPROTO_IPCOMP
IPComp: Check whether we have the CPI before we fetch it (Fix a heap overflow)
IPoFC: Fix -e output (IP-over-Fibre Channel)
IPv6: Don't overwrite the destination IPv6 address for routing headers
IPv6: Fix header printing
IPv6: Stop processing IPPROTO_ values once we hit IPPROTO_IPCOMP
ISAKMP: Clean up parsing of IKEv2 Security Associations
ISOCLNS/IS-IS: Add support for Purge Originator Identifier (RFC6232) and test cases
ISOCLNS/IS-IS: Don't overwrite packet data when checking the signature
ISOCLNS/IS-IS: Filter out non-printable characters
ISOCLNS/IS-IS: Fix segmentation faults
ISOCLNS/IS-IS: Have signature_verify() do the copying and clearing
ISOCLNS: Add some bounds checks
Juniper: Make sure a Juniper header TLV isn't bigger than what's left in the packet (Fix a heap overflow)
LLC/SNAP: With -e, print the LLC header before the SNAP header; without it, cut the SNAP header
LLC: Add a bounds check (Fix a heap overflow)
LLC: Clean up printing of LLC packets
LLC: Fix the printing of RFC 948-style IP packets
LLC: Skip the LLC and SNAP headers with -x for 802.11 and some other protocols
LLDP: Implement IANA OUI and LLDP MUD option
MPLS LSP ping: Update printing for RFC 4379, bug fixes, more bounds checks
MPLS: "length" is now the *remaining* packet length
MPLS: Add bounds and length checks (Fix a heap overflow)
NFS: Don't assume the ONC RPC header is nicely aligned
NFS: Don't overflow the Opaque_Handle buffer (Fix a segmentation fault)
NFS: Don't run past the end of an NFSv3 file handle
OLSR: Add a test to cover a HNA sgw case
OLSR: Fix 'Advertised networks' count
OLSR: Fix printing of smart-gateway HNAs in IPv4
OSPF: Add a bounds check for the Hello packet options
OSPF: Do more bounds checking
OSPF: Fix a segmentation fault
OSPF: Fix printing 'ospf_topology_values' default
OTV: Add missing bounds checks
PGM: Print the formatted IP address, not the raw binary address, as a string
PIM: Add some bounds checking (Fix a heap overflow)
PIMv2: Fix checksumming of Register messages
PPP: Add some bounds checks (Fix a heap overflow)
PPP: Report invalid PAP AACK/ANAK packets
Q.933: Add a missing bounds check
RADIUS: Add Value 13 "VLAN" to Tunnel-Type attribute
RADIUS: Filter out non-printable characters
RADIUS: Translate UDP/1700 as RADIUS
RESP: Do better checking of RESP packets
RPKI-RTR: Add a return value check for "fn_printn" call
RPKI-RTR: Remove printing when truncated condition already detected
RPL: Fix 'Consistency Check' control code
RPL: Fix suboption print
RSVP: An INTEGRITY object in a submessage covers only the submessage
RSVP: Fix an infinite loop; Add bounds and length checks
RSVP: Fix some if statements missing brackets
RSVP: Have signature_verify() do the copying and clearing
RTCP: Add some bounds checks
RTP: Add some bounds checks, fix two segmentation faults
SCTP: Do more bounds checking
SFLOW: Fix bounds checking
SLOW: Fix bugs, add checks
SMB: Before fetching the flags2 field, make sure we have it
SMB: Do bounds checks on NBNS resource types and resource data lengths
SNMP: Clean up the "have libsmi but no modules loaded" case
SNMP: Clean up the object abbreviation list and fix the code to match them
SNMP: Do bounds checks when printing character and octet strings
SNMP: Improve ASN.1 bounds checks
SNMP: More bounds and length checks
STP: Add a bunch of bounds checks, and fix some printing (Fix heap overflows)
STP: Filter out non-printable characters
TCP: Add bounds and length checks for packets with TCP option 20
TCP: Correct TCP option Kind value for TCP Auth and add SCPS-TP
TCP: Fix two bounds checks (Fix heap overflows)
TCP: Make sure we have the data offset field before fetching it (Fix a heap overflow)
TCP: Put TCP-AO option decoding right
TFTP: Don't use strchr() to scan packet data (Fix a heap overflow)
Telnet: Add some bounds checks
TokenRing: Fix -e output
UDLD: Fix an infinite loop
UDP: Add a bounds check (Fix a heap overflow)
UDP: Check against the packet length first
VAT: Add some bounds checks
VTP: Add a test on Mgmt Domain Name length
VTP: Add bounds checks and filter out non-printable characters
VXLAN: Add a bound check and a test case
ZeroMQ: Fix an infinite loop
Tuesday October 25, 2016 [email protected]
Summary for 4.8.1 tcpdump release
Fix "-x" for Apple PKTAP and PPI packets
Improve separation frontend/backend (tcpdump/libnetdissect)
Fix display of timestamps with -tt, -ttt and -ttttt options
Add support for the Marvell Extended Distributed Switch Architecture header
Use PRIx64 to print a 64-bit number in hex.
Printer for HNCP (RFCs 7787 and 7788).
dagid is always an IPv6 address, not an opaque 128-bit string, and other fixes to RPL printer.
RSVP: Add bounds and length checks
OSPF: Do more bounds checking
Handle OpenSSL 1.1.x.
Initial support for the REdis Serialization Protocol known as RESP.
Add printing function for Generic Protocol Extension for VXLAN
draft-ietf-nvo3-vxlan-gpe-01
Network Service Header: draft-ietf-sfc-nsh-01
Don't recompile the filter if the new file has the same DLT.
Pass an adjusted struct pcap_pkthdr to the sub-printer.
Add three test cases for already fixed CVEs
CVE-2014-8767: OLSR
CVE-2014-8768: Geonet
CVE-2014-8769: AODV
Don't do the DDP-over-UDP heuristic first: GitHub issue #499.
Use the new debugging routines in libpcap.
Harmonize TCP source or destination ports tests with UDP ones
Introduce data types to use for integral values in packet structures.
RSVP: Fix an infinite loop
Support of Type 3 and Type 4 LISP packets.
Don't require IPv6 library support in order to support IPv6 addresses.
Many many changes to support libnetdissect usage.
Add a test that makes unaligned accesses: GitHub issue #478.
add a DNSSEC test case: GH #445 and GH #467.
BGP: add decoding of ADD-PATH capability
fixes to LLC header printing, and RFC948-style IP packets
Friday April 10, 2015 [email protected]
Summary for 4.7.4 tcpdump release
RPKI to Router Protocol: Fix Segmentation Faults and other problems
RPKI to Router Protocol: print strings with fn_printn()
wb: fix some bounds checks
Wednesday March 11, 2015 [email protected]
Summary for 4.7.3 tcpdump release
Capsicum fixes for FreeBSD 10
Tuesday March 10, 2015 [email protected]
Summary for 4.7.2 tcpdump release
DCCP: update Packet Types with RFC4340/IANA names
fixes for CVE-2015-0261: IPv6 mobility header check issue
fixes for CVE-2015-2153, 2154, 2155: kday packets
Friday Nov. 12, 2014 [email protected]
Summary for 4.7.0 tcpdump release
changes to hex printing of CDP packets
Fix PPI printing
Radius: update Packet Type Codes and Attribute Types with RFC/IANA names
Add a routine to print "text protocols", and add FTP/HTTP/SMTP/RTSP support.
improvements to telnet printer, even if not -v
omit length for bcp, print-tcp uses it
formatting fixes for a bunch of protocols
new bounds checks for a number of protocols
split netflow 1,6, and 6 dissector up.
added geneve dissector
CVE-2014-9140 PPP dissector fixed.
Tuesday Sep. 2, 2014 [email protected]
Summary for 4.6.2 tcpdump release
fix out-of-source-tree builds: find libpcap that is out of source
better configure check for libsmi
Saturday Jul. 19, 2014 [email protected]
Summary for 4.6.1 tcpdump release
added FreeBSD capsicum
add a short option '#', same as long option '--number'
Wednesday Jul. 2, 2014 [email protected]
Summary for 4.6.0 tcpdump release
all of tcpdump is now using the new "NDO" code base (Thanks Denis!)
nflog, mobile, forces, pptp, AODV, AHCP, IPv6, OSPFv4, RPL, DHCPv6 enhancements/fixes
M3UA decode added.
many new test cases: 82 in 4.5.1 to 133 in 4.6.0
many improvements to travis continuous integration system: OSX, and Coverity options
cleaned up some unnecessary header files
Added bittok2str().
a number of unaligned access faults fixed
-A flag does not consider CR to be printable anymore
fx.lebail took over coverity baby sitting
default snapshot size increased to 256K for accommodate USB captures
WARNING: this release contains a lot of very worthwhile code churn.
Wednesday Jan. 15, 2014 [email protected]
Summary for 4.5.2 tcpdump release
Man page fix
Fix crashes on SPARC
Monday Nov. 11, 2013 [email protected]
Summary for 4.5.1 tcpdump release
CREDITS file fixes
Thursday Nov. 7, 2013 [email protected] and [email protected].
Summary for 4.5.0 tcpdump release
some NFSv4 fixes for printing
fix printing of unknown TCP options, and tcp fast-open
fixes for syslog parser
some gcc-version-specific flag tuning
adopt MacOS deprecation workarounds for openssl
improvements to babel printing
add OpenFlow 1.0 (no SSL) and test cases
GeoNet printer.
added STBC Rx support
improvements to DHCPv6 decoder
clarify which autoconf is needed
Point users to the the-tcpdump-group repository on GitHub rather
than the mcr repository
Add MSDP printer.
Fixed IPv6 check on Solaris and other OSes requiring extra
networking libraries.
Add support for VXLAN (draft-mahalingam-dutt-dcops-vxlan-03),
and add "vxlan" as an option for -T.
Add support for OTV (draft-hasmit-otv-04).
fixes for DLT_IEEE802_11_RADIO datalink types
added MPTCP decoder
Saturday April 6, 2013 [email protected].
Summary for 4.4.0 tcpdump release
RPKI-RTR (RFC6810) is now official (TCP Port 323)
Fix detection of OpenSSL libcrypto.
Add DNSSL (RFC6106) support.
Add "radius" as an option for -T.
Update Action codes for handle_action function according to
802.11s amendment.
Decode DHCPv6 AFTR-Name option (RFC6334).
Updates for Babel.
Fix printing of infinite lifetime in ICMPv6.
Added support for SPB, SPBM Service Identifier, and Unicast
Address sub-TLV in ISIS.
Decode RIPv2 authentication up to RFC4822.
Fix RIP Request/full table decoding issues.
On Linux systems with cap-ng.h, drop root privileges
using Linux Capabilities.
Add support for reading multiple files.
Add MS NLB heartbeat printer.
Separate multiple nexthops in BGP.
Wednesday November 28, 2012 [email protected].
Summary for 4.3.1 tcpdump release
Print "LLDP, length N" for LLDP packets even when not in verbose
mode, so something is printed even if only the timestamp is
present
Document "-T carp"
Print NTP poll interval correctly (it's an exponent, so print
both its raw value and 2^value)
Document that "-e" is used to get MAC addresses
More clearly document that you need to escape or quote
backslashes in filter expressions on the command line
Fix some "the the" in the man page
Use the right maximum path length
Don't treat 192_1_2, when passed to -i, as an interface number
Friday April 3, 2012. [email protected].
Summary for 4.3.0 tcpdump release
fixes for forces: SPARSE data (per RFC 5810)
some more test cases added
updates to documentation on -l, -U and -w flags.
Fix printing of BGP optional headers.
Tried to include DLT_PFSYNC support, failed due to headers required.
added TIPC support.
Fix LLDP Network Policy bit definitions.
fixes for IGMPv3's Max Response Time: it is in units of 0.1 second.
SIGUSR1 can be used rather than SIGINFO for stats
permit -n flag to affect print-ip for protocol numbers
ND_OPT_ADVINTERVAL is in milliseconds, not seconds
Teach PPPoE parser about RFC 4638
Friday December 9, 2011. [email protected].
Summary for 4.2.1 tcpdump release
Only build the Babel printer if IPv6 is enabled.
Support Babel on port 6696 as well as 6697.
Include ppi.h in release tarball.
Include all the test files in the release tarball, and don't
"include" test files that no longer exist.
Don't assume we have <rpc/rpc.h> - check for it.
Support "-T carp" as a way of dissecting IP protocol 112 as CARP