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Friday, April 7, 2023 / The Tcpdump Group
Summary for 1.10.4 libpcap release
Source code:
Fix spaces before tabs in indentation.
rpcap:
Fix name of launchd service.
Documentation:
Document use of rpcapd with systemd, launchd, inetd, and xinetd.
Building and testing:
Require at least pkg-config 0.17.0, as we use --static.
Get rid of the remains of gnuc.h.
Require at least autoconf 2.69.
Update config.{guess,sub}, timestamps 2023-01-01,2023-01-21.
Thursday, January 12, 2023 / The Tcpdump Group
Summary for 1.10.3 libpcap release
Source code:
Sort the PUBHDR variable in Makefile.in in "ls" order.
Fix typo in comment in pflog.h.
Remove two no-longer-present files from .gitignore.
Update code and comments for handling failure to set promiscuous
mode based on new information.
Building and testing:
install: Fixed not to install the non-public pcap-util.h header.
pcap-config: add a --version flag.
Makefile.in: Add some missing files in the distclean target.
Saturday, December 31, 2022 / The Tcpdump Group
Summary for 1.10.2 libpcap release
Source code:
Use __builtin_unreachable() in PCAP_UNREACHABLE.
Use AS_HELP_STRING macro instead of AC_HELP_STRING in the
configure scripts, to avoid deprecation warnings.
Change availability tags in pcap.h to make it easier to
arrange for it to be used in Darwin releases.
Use AS_HELP_STRING for --enable-remote.
Fix some formatting string issues found by cppcheck.
Various small code and comment cleanups.
Use PCAP_ERROR (defined as -1) rather than explicit -1 for
functions the documentation says return PCAP_ERROR.
Remove unused code from the filter compiler.
Use _declspec(deprecated(msg)) rather than __pragma(deprecated)
for Windows deprecation warnings, so the message that was
specified shows up.
diag-control.h: define PCAP_DO_PRAGMA() iff we're going to use it.
Use "%d" to print some signed ints.
Use the Wayback Machine for a removed document in a comment.
Add some const qualifiers.
RDMA: Use PRIu64 to print a uint64_t.
"Dead" pcap_ts from pcap_open_dead() and ..._with_tstamp_precision():
Don't crash if pcap_breakloop() is called.
Savefiles:
Fix pcap_dispatch() to return number of packets processed, rather
than 0, even at EOF.
If we get an error writing the packet header, don't write the
packet data.
Put PFLOG UID and PID values in the header into host byte order
when reading a LINKTYPE_PFLOG file.
Put CAN ID field in CAN pseudo-headers for LINUX_SLL2, as we do
for LINUX_SLL.
Fix inorrectly-computed "real" length for isochronous USB
transfers when reading savefiles.
Don't crash if pcap_can_set_rfmon() is called.
Fix pcap_offline_read() loop.
Capture:
Never process more than INT_MAX packets in a pcap_dispatch() call,
to avoid integer overflow (issue #1087).
Improve error messages for "no such device" and "permission
denied" errors.
SITA: Fix a typo in a variable name.
Packet filtering:
Get PFLOG header length from the length value in the header.
Support all the direction, reason, and action types supported by
all systems that support PFLOG.
Don't require PFLOG support on the target machine in order to
support PFLOG filtering (also fixes issue #1076).
Expand abbreviations into "proto X" properly.
gencode.c: Update a comment about the VLAN TPID test.
Add the minimum and maximum matching DLTs to an error message.
Linux:
Fix memory leak in capture device open (pull request #1038).
Fix detection of CAN/CAN FD packets in direction check (issue
#1051).
Fix double-free crashes on errors such as running on a kernel with
CONFIG_PACKET_MMAP not configured (issue #1054).
Use DLT_CAN_SOCKETCAN for CANbus interfaces (issue #1052; includes
changes from pull request #1035).
Make sure the CANFD_FDF can be relied on to indicate whether a
CANbus packet is a CAN frame or a CAN FD frame
Improve error message for "out of memory" errors for kernel
filters (see issue #1089).
Fix pcap_findalldevs() to find usbmon devices.
Fix handling of VLAN tagged packets if the link-layer type is
changed from DLT_LINUX_SLL to DLT_LINUX_SLL2 (see issue #1105).
Always turn on PACKET_AUXDATA (see issue #1105).
We require 2.6.27 or later, so PACKET_RESERVE is available.
Make sure there's reserved space for a DLT_LINUX_SLL2 header
when capturing.
Correctly compute the "real" length for isochronous USB transfers.
Don't have an eventfd descriptor open in non-blocking mode, so as
not to waste descriptors.
netfilter: Squelch a narrowing warning (To be look at before 2038).
BPF capture (*BSD, macOS, AIX, Solaris 11):
Fix case where a device open might fail, rather than falling back
to a smaller buffer size, when the initial buffer size is too
big.
Use an unsigned device number to iterate over BPF devices, to
squelch a compiler warning.
NetBSD:
Fix handling of LINKTYPE_HDLC/DLT_HDLC.
rpcap:
Fix unaligned accesses in rpcapd (pull request #1037).
Fix code to process port number.
Clean up findalldevs code in rpcapd.
Clean up bufferizing code.
Fix a file descriptor/handle leak in pcap_findalldevs_ex()
(Coverity CID 1507240).
Improve error messages for host and port resolution errors.
Fix connect code not to fail if both IPv4 and IPv6 addresses are
tried.
Improve connect failure error message.
Provide an error message for a bad authentication reply size.
For link-layer types with host-endian fields in the header, fix
those fields if capturing from a server with a different byte
order.
Suppress temporarily the warnings with "enable remote packet capture".
Windows:
Add support for NdisMediumIP (pull request #1027).
Don't require applications using pcap to be built with VS 2015 or
later.
Use the correct string for the DLL VersionInfo.
Remove unnecessary DllMain() function.
Correctly handle ERROR_INVALID_FUNCTION from
PacketGetTimestampModes() (indicate that WinPcap or an older
version of Npcap is probably installed).
Fix use-after-free in some cases when a pcap_t is closed.
Make sure an error is returned by pcap_create_interface() if
PacketOpenAdapter() fails.
Return an error if the driver reports 0 timestamp modes supported.
Close the ADAPTER handle for some errors in
pcap_create_interface().
Get rid of old umaintained VS project files.
Fix deprecation warning for pcap_handle().
Npcap is now at npcap.com, not npcap.org.
Make sure "no such device" and "no permission to open device"
errors show up in pcap_activate(), not pcap_create() (fixes,
among other things, tcpdump -i <interface-number>).
npcap: squelch deprecation warnings for kernel dump mode.
Haiku:
Implement pcap_lib_version(), as now required.
Handle negative or too-large snaplen values.
Fix various build issues and warnings.
Building and testing:
Update configure-time universal build checks for macOS.
Update config.guess and config.sub.
If we look for an SSL library with pkg-config in configure script,
try pkg-config first.
If we have pkg-config and Homebrew, try to set pkg-config up to
find Homebrew packages.
Handle some Autoconf/make errors better.
Use "git archive" for the "make releasetar" process.
Remove the release candidate rcX targets.
Fix compiling on Solaris 9/SPARC and 11/AMD64.
Address assorted compiler warnings.
Fix cross-building on Linux for Windows with mingw32 for Win64
(pull request #1031).
Properly set installation directory on Windows when not compiling
with MSVC.
Fix configure script checks for compiler flags.
Give more details if check for usable (F)Lex fails.
Fix compiling with GCC 4.6.4.
Don't use add_compile_options() with CMake, as we currently don't
require 2.8.12, where it first appeared.
Don't provide -L/usr/lib for pkg-config --libs in pkg-config.
Fix error message for inadequate Bison/Berkeley YACC.
configure: correctly do some DPDK checks.
Only use pkg-config when checking for DPDK.
Allow the path in which DPDK is installed to be specified.
Use pkg-config first when checking for libibverbs.
CMake: fix check for libibverbs with Sun's C compiler.
Have CMake warn if no capture mechanism can be found.
Don't do stuff requiring 3.19 or later on earlier CMakes.
Squelch some CMake warnings.
Fix diag-control.h to handle compiling with clang-cl (issues
#1101 and #1115).
Cleanup various leftover cruft in the configure script.
Fix building without protochain support. (GH #852)
Check for a usable YACC (or Bison) and {F}lex in CMake, as we do
in autotools.
Only check for a C++ compiler on Haiku, as that's the only
platform with C++ code, and make sure they generate code for
the same instruction set bit-width (both 32-bit or both 64-bit)
(issue #1112).
On Solaris, check the target bit-width and set PKG_CONFIG_PATH
appropriately, to handle the mess that is the D-Bus library
package (issue #1112).
Fix generation of pcap-config and libpcap.pc files (issue #1062).
pcap-config: don't assume the system library directory is /usr/lib.
pcap-config: add a --static-pcap-only flag.
Cirrus CI: Use the same configuration as for the main branch.
Add four libpcap test files.
Update Npcap SDK to 1.13.
Makefile.in: Use TEST_DIST, like for tcpdump.
Remove awk code from mkdep.
Cirrus CI: Add the libssl-dev package in the Linux task.
Cirrus CI: Add the openssl@3 brew package in the macOS task.
Get "make shellcheck" to pass again.
CMake: Build valgrindtest only if Autoconf would.
CMake: use ${CMAKE_INSTALL_SBINDIR} rather than just sbin.
CMake: use NUL: as the null device on Windows.
autoconf: fix typo in test of macOS version.
Makefile.in: Add two missing files in EXTRA_DIST.
autotools, cmake: provide an rpath option if necessary.
configure: get rid of the attempt to auto-run PKG_PROG_PKG_CONFIG.
configure: use PKG_CHECK_MODULES to run pkg-config.
Documentation:
Add README.solaris.md.
Add SCTP to pcap-filter(7).
Note that = and == are the same operator in filters (issue #1044).
Update INSTALL.md, README.md, and README.solaris.md.
Update and clean up CONTRIBUTING.md.
Trim documentation of support for now-dead UN*Xe and older
versions of other UN*Xes.
Move the "how to allocate a LINKTYPE_/DLT_ value" documentation to
the web site.
Clean up man pages.
Move README.capture-module to the web site.
Improve some protocol details in pcap-filter(7).
Refine "relop" notes in pcap-filter(7).
In pcap-filter(7) "domain" is an id.
Discuss backward compatibility in pcap-filter(7).
Other improvements to pcap-filter(7).
Document pcap_breakloop(3PCAP) interaction with threads better.
Document PCAP_ERROR_NOT_ACTIVATED for more routines.
Wednesday, June 9, 2021:
Summary for 1.10.1 libpcap release:
Packet filtering:
Fix "type XXX subtype YYY" giving a parse error
Source code:
Add PCAP_AVAILABLE_1_11.
Building and testing:
Rename struct bpf_aux_data to avoid NetBSD compile errors
Squelch some compiler warnings
Squelch some Bison warnings
Fix cross-builds with older kernels lacking BPF_MOD and BPF_XOR
Fix Bison detection for minor version 0.
Fix parallel build with FreeBSD make.
Get DLT_MATCHING_MAX right in gencode.c on NetBSD.
Define timeradd() and timersub() if necessary.
Fix Cygwin/MSYS target directories.
Fix symlinking with DESTDIR.
Fix generation of libpcap.pc with CMake when not building a shared
library.
Check for Arm64 as well as x86-64 when looking for packet.lib on
Windows.
Documentation:
Refine Markdown in README.md.
Improve the description of portrange in filters.
README.linux.md isn't Markdown, rename it just README.linux.
pcapng:
Support reading version 1.2, which some writers produce, and which
is the same as 1.0 (some new block types were added, but
that's not sufficient reason to bump the minor version number,
as code that understands those new block types can handle them
in a 1.0 file)
Linux:
Drop support for text-mode USB captures, as we require a 2.6.27
or later kernel (credit to Chaoyuan Peng for noting the
sscanf vulnerabilities in the text-mode code that got me to
realize that we didn't need this code any more)
Bluetooth: fix non-blocking mode.
Don't assume that all compilers used to build for Linux support
the __atomic builtins
Windows:
Add more information in "interface disappeared" error messages, in
the hopes of trying to figure out the cause.
Treat ERROR_DEVICE_REMOVED as "device was removed".
Indicate in the error message which "device was removed" error
occurred.
Report the Windows error status if PacketSendPacket() fails.
Use %lu for ULONGs in error message formats.
Don't treat the inability to find airpcap.dll as an error.
Ignore spurious error reports by Microsoft Surface mobile
telephony modem driver
rpcap:
Clean up error checking and error messages for server address
lookup.
Tuesday, December 29, 2020
Summary for 1.10.0 libpcap release
Add support for capturing on DPDK devices
Label most APIs by the first release in which they're available
Fix some memory leaks, including in pcap_compile()
Add pcap_datalink_val_to_description_or_dlt()
Handle the pcap private data in a fashion that makes fewer
assumptions about memory layouts (might fix GitHub issue #940
on ARM)
Fix some thread safety issues
pcap_findalldevs(): don't sort interfaces by unit number
Always return a list of supported time-stamp types, even if only
host time stamps are supported
Increase the maximum snaplen for LINKTYPE_USBPCAP/DLT_USBPCAP
Report the DLT description in error messages
Add pcap_init() for first-time initialization and global option
setting; it's not required, but may be used
Remove (unused) SITA support
Capture file reading:
Correctly handle pcapng captures with more than one IDB with a
snspshot length greater than the supported maximum
Capture file writing:
Create the file in pcap_dump_open_append() if it doesn't exist
Packet filtering:
Fix "unknown ether proto 'aarp'"
Add a new filter "ifindex" for DLT_LINUX_SLL2 files on all
platforms and live Linux captures
Add a hack to the optimizer to try to catch certain optimizer
loops (should prevent GitHub issue #112)
Show special Linux BPF offsets symbolically in bpf_image() and
bpf_dump()
Added support for ICMPv6 types 1-4 as tokens with names
Remove undocumented and rather old "ether proto" protocols
Catch invalid IPv4 addresses in filters
Don't assume ARM supports unaligned accesses
Security and other issues found by analysis:
Fix various security issues reported by Charles Smith at Tangible
Security
Fix various security issues reported by Include Security
Fix some issues found by cppcheck.
Add some overflow checks in the optimizer
rpcap:
Support rpcap-over-TLS
Redo protocol version negotiation to avoid problems with old
servers (it still works with servers using the old negotiation,
as well as servers not supporting negotiation)
Error handling cleanups
Add some new authentication libpcap error codes for specific
errors
Fix some inetd issues in rpcapd
Fix rpcapd core dumps with invalid configuration file
On UN*X, don't have rpcapd tell the client why authentication
failed, so a brute-force attacker can't distinguish between
"unknown user name" and "known user name, wrong password"
Allow rpcapd to rebind more rapidly (GitHub issue #765)
Documentation:
Improve man pages, including adding backward compatibility notes
Building and testing:
Require, and assume, some level of C99 support in the C compiler
Require Visual Studio 2015 or later if using Visual Studio
Fix configure script issues, including with libnl on Linux
Fix CMake issues
Squelch complaints from Bison about "%define api.pure" being
deprecated
Fix compilation of pcap-tc.c
Linux:
Require PF_PACKET support, and kernel 2.6.27 or later
Handle systems without AF_INET or AF_UNIX socket support
Get rid of Wireless Extensions for turning monitor mode on
Proper memory sync for PACKET_MMAP (may prevent GitHub issue
#898)
Drop support for libnl 1 and 2.
Return error on interface going away, but not if it just went
down but is still present
Set socket protocol only after packet ring configured,
reducing bogus packet drop reports
Get ifdrop stats from sysfs.
When adjusting BPF programs, do not subtract the
SLL[2]_HDR_LEN if the location is negative (special metadata
offset), to preserve references to metadata; see
https://github.com/the-tcpdump-group/tcpdump/issues/480#issuecomment-486827278
Report a warning for unknown ARPHRD types
Have pcap_breakloop() forcibly break out of a sleeping
capture loop
Add support for DSA data link types
For raw USB bus capture, use the snapshot length to set the
buffer size, and set the len field to reflect the length
in the URB (GitHub issue #808)
With a timeout of zero, wait indefinitely
Clean up support for some non-GNU libc C libraries
Add DLT_LINUX_SLL2 for cooked-mode captures
Probe CONFIGURATION descriptor of connected USB devices
Treat EPERM on ethtool ioctls as meaning "not supported", as
permissions checks are done before checking whether the
ioctl is supported at all
macOS:
Cope with getting EPWROFF from SIOCGIFMEDIA
Treat EPERM on SIOCGIFMEDIA as meaning "not supported", as
permissions checks are done before checking whether the
ioctl is supported at all
Treat ENXIO when reading packets as meaning "the interface
was removed"
Report "the interface disappeared", not "the interface went
down", if the interface was removed during a capture
FreeBSD:
Treat ENXIO as meaning "the interface was removed"
Report "the interface disappeared", not "the interface went
down", if the interface was removed during a capture
NetBSD:
Treat ENXIO as meaning "the interface was removed"
Report "the interface disappeared", not "the interface went
down", if the interface was removed during a capture
OpenBSD:
Treat EIO as meaning "the interface was removed"
Report "the interface disappeared", not "the interface went
down", if the interface was removed during a capture
DragonFly BSD:
Treat ENXIO as meaning "the interface was removed"
Report "the interface disappeared", not "the interface went
down", if the interface was removed during a capture
Solaris:
Treat ENXIO as meaning "the interface was removed"
Report "the interface disappeared", not "the interface went
down", if the interface was removed during a capture
AIX:
Fix loading of BPF kernel extension
Treat ENXIO as meaning "the interface was removed"
Report "the interface disappeared", not "the interface went
down", if the interface was removed during a capture
Windows:
Make the snapshot length work even if pcap_setfilter()
isn't called
Fix compilation on Cygwin/MSYS
Add pcap_handle(), and deprecate pcap_fileno()
Report PCAP_ERROR_NO_SUCH_DEVICE for a non-existent device
Return an appropriate error message for device removed or
device unusable due to a suspend/resume
Report a warning for unknown NdisMedium types
Have pcap_breakloop() forcibly break out of a sleeping
capture loop
Clean up building DLL
Handle CRT mismatch for pcap_dump_fopen()
Map NdisMediumWirelessWan to DLT_RAW
Add AirPcap support in a module, rather than using
WinPcap/Npcap's support for it
Report the system error for PacketSetHwFilter() failures
Add support for getting and setting packet time stamp types
with Npcap
Have pcap_init() allow selecting whether the API should use
local code page strings or UTF-8 strings (including error
messages)
Haiku:
Add capture support
Sunday, July 22, 2018
Summary for 1.9.1 libpcap release
Mention pcap_get_required_select_timeout() in the main pcap man page
Fix pcap-usb-linux.c build on systems with musl
Fix assorted man page and other documentation issues
Plug assorted memory leaks
Documentation changes to use https:
Changes to how time stamp calculations are done
Lots of tweaks to make newer compilers happier and warning-free and
to fix instances of C undefined behavior
Warn if AC_PROG_CC_C99 can't enable C99 support
Rename pcap_set_protocol() to pcap_set_protocol_linux().
Align pcap_t private data on an 8-byte boundary.
Fix various error messages
Use 64-bit clean API in dag_findalldevs()
Fix cleaning up after some errors
Work around some ethtool ioctl bugs in newer Linux kernels (GitHub
issue #689)
Add backwards compatibility sections to some man pages (GitHub issue
#745)
Fix autotool configuration on AIX and macOS
Don't export bpf_filter_with_aux_data() or struct bpf_aux_data;
they're internal-only and subject to change
Fix pcapng block size checking
On macOS, don't build rpcapd or test programs any fatter than they
need to be
Fix reading of capture statistics for Linux USB
Fix packet size values for Linux USB packets (GitHub issue #808)
Check only VID in VLAN test in filters (GitHub issue #461)
Fix pcap_list_datalinks on 802.11 devices on macOS
Fix overflows with very large snapshot length in pcap file
Improve parsing of rpcapd configuration file (GitHub issue #767)
Handle systems without strlcpy() or strlcat() better
Fix crashes and other errors with invalid filter expressions
Fix use of uninitialized file descriptor in remote capture
Fix some CMake issues
Fix some divide-by-zero issues with the filter compiler
Work around a GNU libc bug in pcap_nametonetaddr()
Add support for DLT_LINUX_SLL2
Fix handling of the packet-count argument for Myricom SNF devices
Fix --disable-rdma in configure script (GitHub issue #782)
Fix compilation of TurboCap support (GitHub issue #764)
Constify first argument to pcap_findalldevs_ex()
Fix a number of issues when running rpcapd as an inetd-style daemon
Fix CMake issues with D-Bus libraries
In rpcapd, clean up termination of a capture session
Redo remote capture protocol negotiation
In rpcapd, report the same error for "invalid user name" and
"invalid password", to make brute-forcing harder
For remote captures, add an error code for "the server requires TLS"
Fix pcap_dump_fopen() on Windows to avoid clashes between
{Win,N}Pcap and application C runtimes
Fix exporting of functions from Windows DLLs (GitHub issue #810)
Fix building as part of Npcap
Allow rpcapd to rebind more rapidly
Fix building shared libpcap library on midipix (midipix.org)
Fix hack to detect UTF-16LE adapter names on Windows not to go past
the end of the string
Fix handling of "wireless WAN" (mobile phone network modems) on
Windows with WinPcap/Npcap (GitHub issue #824)
Have pcap_dump_open_append() create the dump file if it doesn't
exists (GitHub issue #247)
Fix the maxmum snapshot length for DLT_USBPCAP
Use -fPIC when building for 64-bit SPARC on Linux (GitHub issue #837)
Fix CMake 64-bit library installation directory on some Linux
distributions
Boost the TPACKET_V3 timeout to the maximum if a timeout of 0 was
specified
Five CVE-2019-15161, CVE-2019-15162, CVE-2019-15163, CVE-2019-15164, CVE-2019-15165
PCAPNG reader applies some sanity checks before doing malloc().
Sunday, June 24, 2018, by mcr@sandelman.ca
Summary for 1.9.0 libpcap release
Added testing system to libpcap, independent of tcpdump
Changes to how pcap_t is activated
Adding support for Large stream buffers on Endace DAG cards
Changes to BSD 3-clause license to 2-clause license
Additions to TCP header parsing, per RFC3168
Add CMake build process (extensive number of changes)
Assign a value for OpenBSD DLT_OPENFLOW.
Support setting non-blocking mode before activating.
Extensive build support for Windows VS2010 and MINGW (many many changes, over many months)
Added RPCAPD support when --enable-remote (default no)
Add the rpcap daemon source and build instructions.
Put back the greasy "save the capture filter string so we can tweak it"
hack, that keeps libpcap from capturing rpcap traffic.
Fixes for captures on MacOS, utun0
fixes so that non-AF_INET addresses, are not ==AF_INET6 addresses.
Add a linktype for IBM SDLC frames containing SNA PDUs.
pcap_compile() in 1.8.0 and later is newly thread-safe.
bound snaplen for linux tpacket_v2 to ~64k
Make VLAN filter handle both metadata and inline tags
D-Bus captures can now be up to 128MB in size
Added LORATAP DLT value
Added DLT_VSOCK for https://qemu-project.org/Features/VirtioVsock
probe_devices() fixes not to overrun buffer for name of device
Add linux-specific pcap_set_protocol_linux() to allow specifying a specific capture protocol.
RDMA sniffing support for pcap
Add Nordic Semiconductor Bluetooth LE sniffer link-layer header type.
fixes for reading /etc/ethers
Make it possible to build on Windows without packet.dll.
Add tests for large file support on UN*X.
Solaris fixes to work with 2.8.6
configuration test now looks for header files, not capture devices present
Fix to work with Berkeley YACC.
fixes for DragonBSD compilation of pcap-netmap.c
Clean up the ether_hostton() stuff.
Add an option to disable Linux memory-mapped capture support.
Add DAG API support checks.
Add Septel, Myricom SNF, and Riverbed TurboCap checks.
Add checks for Linux USB, Linux Bluetooth, D-Bus, and RDMA sniffing support.
Add a check for hardware time stamping on Linux.
Don't bother supporting pre-2005 Visual Studio.
Increased minimum autoconf version requirement to 2.64
Add DLT value 273 for XRA-31 sniffer
Clean up handing of signal interrupts in pcap_read_nocb_remote().
Use the XPG 4.2 versions of the networking APIs in Solaris.
Fix, and better explain, the "IPv6 means IPv6, not IPv4" option setting.
Explicitly warn that negative packet buffer timeouts should not be used.
rpcapd: Add support inetd-likes, including xinetd.conf, and systemd units
Rename DLT_IEEE802_15_4 to DLT_IEEE802_15_4_WITHFCS.
Add DISPLAYPORT AUX link type
Remove the sunos4 kernel modules and all references to them.
Add more interface flags to pcap_findalldevs().
Summary for 1.9.0 libpcap release (to 2017-01-25 by guy@alum.mit.edu)
Man page improvements
Fix Linux cooked mode userspace filtering (GitHub pull request #429)
Fix compilation if IPv6 support not enabled
Fix some Linux memory-mapped capture buffer size issues
Don't fail if kernel filter can't be set on Linux (GitHub issue
#549)
Improve sorting of interfaces for pcap_findalldevs()
Don't list Linux usbmon devices if usbmon module isn't loaded
Report PCAP_ERROR_PERM_DENIED if no permission to open Linux usbmon
devices
Fix DLT_ type for Solaris IPNET devices
Always return an error message for errors finding DAG or Myricom
devices
If possible, don't require that a device be openable when
enumerating them for pcap_findalldevs()
Don't put incompletely-initialized addresses in the address list for
When finding Myricom devices, update description for regular
interfaces that are Myricom devices and handle SNF_FLAGS=0x2(port
aggregation enabled)
Fix compilation error in DAG support
Fix issues with CMake configuration
Add support for stream buffers larger than 2GB on newer DAG cards
Remove support for building against DAG versions without STREAMS
support (before dag-3.0.0 2007)
Tuesday, Oct. 25, 2016 mcr@sandelman.ca
Summary for 1.8.1 libpcap release
Add a target in Makefile.in for Exuberant Ctags use: 'extags'.
Rename configure.in to configure.ac: autoconf 2.59
Clean up the name-to-DLT mapping table.
Add some newer DLT_ values: IPMI_HPM_2,ZWAVE_R1_R2,ZWAVE_R3,WATTSTOPPER_DLM,ISO_14443,RDS
Clarify what the return values are for both success and failure.
Many changes to build on windows
Check for the "break the loop" condition in the inner loop for TPACKET_V3.
Fix handling of packet count in the TPACKET_V3 inner loop: GitHub issue #493.
Filter out duplicate looped back CAN frames.
Fix the handling of loopback filters for IPv6 packets.
Add a link-layer header type for RDS (IEC 62106) groups.
Use different intermediate folders for x86 and x64 builds on Windows.
On Linux, handle all CAN captures with pcap-linux.c, in cooked mode.
Removes the need for the "host-endian" link-layer header type.
Compile with '-Wused-but-marked-unused' in devel mode if supported
Have separate DLTs for big-endian and host-endian SocketCAN headers.
Reflect version.h being renamed to pcap_version.h.
Require that version.h be generated: all build procedures we support generate version.h (autoconf, CMake, MSVC)!
Properly check for sock_recv() errors.
Re-impose some of Winsock's limitations on sock_recv().
Replace sprintf() with pcap_snprintf().
Fix signature of pcap_stats_ex_remote().
Initial cmake support for remote packet capture.
Have rpcap_remoteact_getsock() return a SOCKET and supply an "is active" flag.
Clean up {DAG, Septel, Myricom SNF}-only builds.
Do UTF-16-to-ASCII conversion into the right place.
pcap_create_interface() needs the interface name on Linux.
Clean up hardware time stamp support: the "any" device does not support any time stamp types.
Add support for capturing on FreeBSD usbusN interfaces.
Add a LINKTYPE/DLT_ value for FreeBSD USB.
Go back to using PCAP_API on Windows.
CMake support
Add TurboCap support from WinPcap.
Recognize 802.1ad nested VLAN tag in vlan filter.
Thursday Sep. 3, 2015 guy@alum.mit.edu
Summary for 1.7.5 libpcap release
Man page cleanups.
Add some allocation failure checks.
Fix a number of Linux/ucLinux configure/build issues.
Fix some memory leaks.
Recognize 802.1ad nested VLAN tag in vlan filter.
Fix building Bluetooth Linux Monitor support with BlueZ 5.1+
Saturday Jun. 27, 2015 mcr@sandelman.ca
Summary for 1.7.4 libpcap release
Include fix for GitHub issue #424 -- out of tree builds.
Friday Apr. 10, 2015 guy@alum.mit.edu
Summary for 1.7.3 libpcap release
Work around a Linux bonding driver bug.
Thursday Feb. 12, 2015 guy@alum.mit.edu/mcr@sandelman.ca
Summary for 1.7.2 libpcap release
Support for filtering Geneve encapsulated packets.
Generalize encapsulation handling, fixing some bugs.
Don't add null addresses to address lists.
Add pcap_dump_open_append() to open for appending.
Fix the swapping of isochronous descriptors in Linux USB.
Attempt to handle TPACKET_V1 with 32-bit userland and 64-bit kernel.
Wednesday Nov. 12, 2014 guy@alum.mit.edu/mcr@sandelman.ca
Summary for 1.7.0 libpcap release
Fix handling of zones for BPF on Solaris
new DLT for ZWAVE
clarifications for read timeouts.
Use BPF extensions in compiled filters, fixing VLAN filters
some fixes to compilation without stdint.h
EBUSY can now be returned by SNFv3 code.
Fix the range checks in BPF loads
Various DAG fixes.
Various Linux fixes.
Monday Aug. 12, 2014 guy@alum.mit.edu
Summary for 1.6.2 libpcap release
Don't crash on filters testing a non-existent link-layer type
field.
Fix sending in non-blocking mode on Linux with memory-mapped
capture.
Fix timestamps when reading pcap-ng files on big-endian
machines.
Saturday Jul. 19, 2014 mcr@sandelman.ca
Summary for 1.6.1 libpcap release
some fixes for the any device
changes for how --enable-XXX (--enable-sniffing, --enable-can) works
Wednesday Jul. 2, 2014 mcr@sandelman.ca
Summary for 1.6.0 libpcap release
Don't support D-Bus sniffing on OS X
fixes for byte order issues with NFLOG captures
Handle using cooked mode for DLT_NETLINK in activate_new().
on platforms where you can not capture on down interfaces, do not list them
but: do list interfaces which are down, if you can capture on them!
Wednesday December 18, 2013 guy@alum.mit.edu
Summary for 1.5.3 libpcap release
Don't let packets that don't match the current filter get to the
application when TPACKET_V3 is used. (GitHub issue #331)
Fix handling of pcap_loop()/pcap_dispatch() with a packet count
of 0 on some platforms (including Linux with TPACKET_V3).
(GitHub issue #333)
Work around TPACKET_V3 deficiency that causes packets to be lost
when a timeout of 0 is specified. (GitHub issue #335)
Man page formatting fixes.
Wednesday December 4, 2013 guy@alum.mit.edu
Summary for 1.5.2 libpcap release
Fix libpcap to work when compiled with TPACKET_V3 support and
running on a kernel without TPACKET_V3 support. (GitHub
issue #329)
Wednesday November 20, 2013 guy@alum.mit.edu
Summary for 1.5.1 libpcap release
Report an error, rather than crashing, if an IPv6 address is
used for link-layer filtering. (Wireshark bug 9376)
Wednesday October 30, 2013 guy@alum.mit.edu
Summary for 1.5.0 libpcap release
TPACKET_V3 support added for Linux
Point users to the the-tcpdump-group repository on GitHub rather
than the mcr repository
Checks added for malloc()/realloc()/etc. failures
Fixed build on Solaris 11
Support filtering E1 SS7 traffic on MTP2 layer Annex A
Use "ln -s" to link man pages by default
Add support for getting nanosecond-resolution time stamps when
capturing and reading capture files
Many changes to autoconf to deal better with non-GCC compilers
added many new DLT types
Saturday April 6, 2013 guy@alum.mit.edu
Summary for 1.4.0 libpcap release
Add netfilter/nfqueue interface.
If we don't have support for IPv6 address resolution, support,
in filter expressions, what IPv6 stuff we can.
Fix pcap-config to include -lpthread if canusb support is
present
Try to fix "pcap_parse not defined" problems when --without-flex
and --without-bison are used when you have Flex and Bison
Fix some issues with the pcap_loop man page.
Fix pcap_getnonblock() and pcap_setnonblock() to fill in the
supplied error message buffer
Fix typo that, it appeared, would cause pcap-libdlpi.c not to
compile (perhaps systems with libdlpi also have BPF and use
that instead)
Catch attempts to call pcap_compile() on a non-activated pcap_t
Fix crash on Linux with CAN-USB support without usbfs
Fix addition of VLAN tags for Linux cooked captures
Check for both EOPNOTSUPP and EINVAL after SIOCETHTOOL ioctl, so
that the driver can report either one if it doesn't support
SIOCETHTOOL
Add DLT_INFINIBAND and DLT_SCTP
Describe "proto XXX" and "protochain XXX" in the pcap-filter man
page
Handle either directories, or symlinks to directories, that
correspond to interfaces in /sys/class/net
Fix handling of VLAN tag insertion to check, on Linux 3.x
kernels, for VLAN tag valid flag
Clean up some man pages
Support libnl3 as well as libnl1 and libnl2 on Linux
Fix handling of Bluetooth devices on 3.x Linux kernels
Friday March 30, 2012. mcr@sandelman.ca
Summary for 1.3.0 libpcap release
Handle DLT_PFSYNC in {FreeBSD, other *BSD+Mac OS X, other}.
Linux: Don't fail if netfilter isn't enabled in the kernel.
Add new link-layer type for NFC Forum LLCP.
Put the CANUSB stuff into EXTRA_DIST, so it shows up in the release tarball.
Add LINKTYPE_NG40/DLT_NG40.
Add DLT_MPEG_2_TS/LINKTYPE_MPEG_2_TS for MPEG-2 transport streams.
[PATCH] Fix AIX-3.5 crash with read failure during stress
AIX fixes.
Introduce --disable-shared configure option.
Added initial support for canusb devices.
Include the pcap(3PCAP) additions as 1.2.1 changes.
many updates to documentation: pcap.3pcap.in
Improve 'inbound'/'outbound' capture filters under Linux.
Note the cleanup of handling of new DLT_/LINKTYPE_ values.
On Lion, don't build for PPC.
For mac80211 devices we need to clean up monitor mode on exit.
Friday December 9, 2011. guy@alum.mit.edu.
Summary for 1.2.1 libpcap release
Update README file.
Fix typos in README.linux file.
Clean up some compiler warnings.
Fix Linux compile problems and tests for ethtool.h.
Treat Debian/kFreeBSD and GNU/Hurd as systems with GNU
toolchains.
Support 802.1 QinQ as a form of VLAN in filters.
Treat "carp" as equivalent to "vrrp" in filters.
Fix code generated for "ip6 protochain".
Add some new link-layer header types.
Support capturing NetFilter log messages on Linux.
Clean up some error messages.
Turn off monitor mode on exit for mac80211 interfaces on Linux.
Fix problems turning monitor mode on for non-mac80211 interfaces
on Linux.
Properly fail if /sys/class/net or /proc/net/dev exist but can't
be opened.
Fail if pcap_activate() is called on an already-activated
pcap_t, and add a test program for that.
Fix filtering in pcap-ng files.
Don't build for PowerPC on Mac OS X Lion.
Simplify handling of new DLT_/LINKTYPE_ values.
Expand pcap(3PCAP) man page.
Sunday July 24, 2011. mcr@sandelman.ca.
Summary for 1.2 libpcap release
All of the changes listed below for 1.1.1 and 1.1.2.
Changes to error handling for pcap_findalldevs().
Fix the calculation of the frame size in memory-mapped captures.
Add a link-layer header type for STANAG 5066 D_PDUs.
Add a link-layer type for a variant of 3GPP TS 27.010.
Noted real nature of LINKTYPE_ARCNET.
Add a link-layer type for DVB-CI.
Fix configure-script discovery of VLAN acceleration support.
see https://netoptimizer.blogspot.com/2010/09/tcpdump-vs-vlan-tags.html
Linux, HP-UX, AIX, NetBSD and OpenBSD compilation/conflict fixes.
Protect against including AIX 5.x's <net/bpf.h> having been included.
Add DLT_DBUS, for raw D-Bus messages.
Treat either EPERM or EACCES as "no soup for you".
Changes to permissions on DLPI systems.
Add DLT_IEEE802_15_4_NOFCS for 802.15.4 interfaces.
Fri. August 6, 2010. guy@alum.mit.edu.
Summary for 1.1.2 libpcap release
Return DLT_ values, not raw LINKTYPE_ values from
pcap_datalink() when reading pcap-ng files
Add support for "wlan ra" and "wlan ta", to check the RA and TA
of WLAN frames that have them
Don't crash if "wlan addr{1,2,3,4}" are used without 802.11
headers
Do filtering on USB and Bluetooth capturing
On FreeBSD/SPARC64, use -fPIC - it's apparently necessary
Check for valid port numbers (fit in a 16-bit unsigned field) in
"port" filters
Reject attempts to put savefiles into non-blocking mode
Check for "no such device" for the "get the media types" ioctl
in *BSD
Improve error messages from bpf_open(), and let it do the error
handling
Return more specific errors from pcap_can_set_rfmon(); fix
documentation
Update description fetching code for FreeBSD, fix code for
OpenBSD
Ignore /sys/net/dev files if we get ENODEV for them, not just
ENXIO; fixes handling of bonding devices on Linux
Fix check for a constant 0 argument to BPF_DIV
Use the right version of ar when cross-building
Free any filter set on a savefile when the savefile is closed
Include the CFLAGS setting when configure was run in the
compiler flags
Add support for 802.15.4 interfaces on Linux
Thu. April 1, 2010. guy@alum.mit.edu.
Summary for 1.1.1 libpcap release
Update CHANGES to reflect more of the changes in 1.1.0.
Fix build on RHEL5.
Fix shared library build on AIX.
Thu. March 11, 2010. ken@netfunctional.ca/guy@alum.mit.edu.
Summary for 1.1.0 libpcap release
Add SocketCAN capture support
Add Myricom SNF API support
Update Endace DAG and ERF support
Add support for shared libraries on Solaris, HP-UX, and AIX
Build, install, and un-install shared libraries by default;
don't build/install shared libraries on platforms we don't support
Fix building from a directory other than the source directory
Fix compiler warnings and builds on some platforms
Update config.guess and config.sub
Support monitor mode on mac80211 devices on Linux
Fix USB memory-mapped capturing on Linux; it requires a new DLT_
value
On Linux, scan /sys/class/net for devices if we have it; scan
it, or /proc/net/dev if we don't have /sys/class/net, even if
we have getifaddrs(), as it'll find interfaces with no
addresses
Add limited support for reading pcap-ng files
Fix BPF driver-loading error handling on AIX
Support getting the full-length interface description on FreeBSD
In the lexical analyzer, free up any addrinfo structure we got back
from getaddrinfo().
Add support for BPF and libdlpi in OpenSolaris (and SXCE)
Hyphenate "link-layer" everywhere
Add /sys/kernel/debug/usb/usbmon to the list of usbmon locations
In pcap_read_linux_mmap(), if there are no frames available, call
poll() even if we're in non-blocking mode, so we pick up
errors, and check for the errors in question.
Note that poll() works on BPF devices is Snow Leopard
If an ENXIO or ENETDOWN is received, it may mean the device has
gone away. Deal with it.
For BPF, raise the default capture buffer size to from 32k to 512k
Support ps_ifdrop on Linux
Added a bunch of #ifdef directives to make wpcap.dll (WinPcap) compile
under cygwin.
Changes to Linux mmapped captures.
Fix bug where create_ring would fail for particular snaplen and
buffer size combinations
Update pcap-config so that it handles libpcap requiring
additional libraries
Add workaround for threadsafeness on Windows
Add missing mapping for DLT_ENC <-> LINKTYPE_ENC
DLT: Add DLT_CAN_SOCKETCAN
DLT: Add Solaris ipnet
Don't check for DLT_IPNET if it's not defined
Add link-layer types for Fibre Channel FC-2
Add link-layer types for Wireless HART
Add link-layer types for AOS
Add link-layer types for DECT
Autoconf fixes (AIX, HP-UX, OSF/1, Tru64 cleanups)
Install headers unconditionally, and include vlan.h/bluetooth.h if
enabled
Autoconf fixes+cleanup
Support enabling/disabling bluetooth (--{en,dis}able-bluetooth)
Support disabling SITA support (--without-sita)
Return -1 on failure to create packet ring (if supported but
creation failed)
Fix handling of 'any' device, so that it can be opened, and no longer
attempt to open it in Monitor mode
Add support for snapshot length for USB Memory-Mapped Interface
Fix configure and build on recent Linux kernels
Fix memory-mapped Linux capture to support pcap_next() and
pcap_next_ex()
Fixes for Linux USB capture
DLT: Add DLT_LINUX_EVDEV
DLT: Add DLT_GSMTAP_UM
DLT: Add DLT_GSMTAP_ABIS
Mon. October 27, 2008. ken@netfunctional.ca. Summary for 1.0.0 libpcap release
Compile with IPv6 support by default
Compile with large file support on by default
Add pcap-config script, which deals with -I/-L flags for compiling
DLT: Add IPMB
DLT: Add LAPD
DLT: Add AX25 (AX.25 w/KISS header)
DLT: Add JUNIPER_ST
802.15.4 support
Variable length 802.11 header support
X2E data type support
SITA ACN Interface support - see README.sita
Support for memory-mapped capture on Linux
Support for zerocopy BPF on platforms that support it
Support for setting buffer size when opening devices
Support for setting monitor mode when opening 802.11 devices
Better support for dealing with VLAN tagging/stripping on Linux
Fix dynamic library support on OSX
Return PCAP_ERROR_IFACE_NOT_UP if the interface isn't 'UP', so applications
can print better diagnostic information
Return PCAP_ERROR_PERM_DENIED if we don't have permission to open a device, so
applications can tell the user they need to go play with permissions
On Linux, ignore ENETDOWN so we can continue to capture packets if the
interface goes down and comes back up again.
On Linux, support new tpacket frame headers (2.6.27+)
On Mac OS X, add scripts for changing permissions on /dev/bpf* and launchd plist
On Solaris, support 'passive mode' on systems that support it
Fixes to autoconf and general build environment
Man page reorganization + cleanup
Autogenerate VERSION numbers better
Mon. September 10, 2007. ken@xelerance.com. Summary for 0.9.8 libpcap release
Change build process to put public libpcap headers into pcap subir
DLT: Add value for IPMI IPMB packets
DLT: Add value for u10 Networks boards
Require <net/pfvar.h> for pf definitions - allows reading of pflog formatted
libpcap files on an OS other than where the file was generated
Wed. April 25, 2007. ken@xelerance.com. Summary for 0.9.6 libpcap release
Put the public libpcap headers into a pcap subdirectory in both the
source directory and the target include directory, and have include
files at the top-level directory to include those headers, for
backwards compatibility.
Add Bluetooth support
Add USB capturing support on Linux
Add support for the binary USB sniffing interface in Linux
Add support for new FreeBSD BIOCSDIRECTION ioctl
Add additional filter operations for 802.11 frame types
Add support for filtering on MTP2 frame types
Propagate some changes from the main branch, so the x.9 branch has
all the DLT_ and LINKTYPE_ values that the main branch does
Reserved a DLT_ and SAVEFILE_ value for PPI (Per Packet Info)
encapsulated packets
Add LINKTYPE_ for IEEE 802.15.4, with address fields padded as done
by Linux drivers
Add LINKTYPE_ value corresponding to DLT_IEEE802_16_MAC_CPS.
Add DLT for IEEE 802.16 (WiMAX) MAC Common Part Sublayer
Add DLT for Bluetooth HCI UART transport layer
When building a shared library, build with "-fPIC" on Linux to support x86_64
Link with "$(CC) -shared" rather than "ld -shared" when building a
".so" shared library
Add support for autoconf 2.60
Fixes to discard unread packets when changing filters
Changes to handle name changes in the DAG library resulting from
switching to libtool.
Add support for new DAG ERF types.
Add an explicit "-ldag" when building the shared library, so the DAG
library dependency is explicit.
Mac OSX fixes for dealing with "wlt" devices
Fixes in add_or_find_if() & pcap_findalldevs() to optimize generating
device lists
Fixed a bug in pcap_open_live(). The return value of PacketSetHwFilter
was not checked.