xref: /freebsd/contrib/libpcap/CHANGES (revision 95ee2897e98f5d444f26ed2334cc7c439f9c16c6)
1Friday, April 7, 2023 / The Tcpdump Group
2  Summary for 1.10.4 libpcap release
3    Source code:
4      Fix spaces before tabs in indentation.
5    rpcap:
6      Fix name of launchd service.
7    Documentation:
8      Document use of rpcapd with systemd, launchd, inetd, and xinetd.
9    Building and testing:
10      Require at least pkg-config 0.17.0, as we use --static.
11      Get rid of the remains of gnuc.h.
12      Require at least autoconf 2.69.
13      Update config.{guess,sub}, timestamps 2023-01-01,2023-01-21.
14
15Thursday, January 12, 2023 / The Tcpdump Group
16  Summary for 1.10.3 libpcap release
17    Source code:
18      Sort the PUBHDR variable in Makefile.in in "ls" order.
19      Fix typo in comment in pflog.h.
20      Remove two no-longer-present files from .gitignore.
21      Update code and comments for handling failure to set promiscuous
22        mode based on new information.
23    Building and testing:
24      install: Fixed not to install the non-public pcap-util.h header.
25      pcap-config: add a --version flag.
26      Makefile.in: Add some missing files in the distclean target.
27
28Saturday, December 31, 2022 / The Tcpdump Group
29  Summary for 1.10.2 libpcap release
30    Source code:
31      Use __builtin_unreachable() in PCAP_UNREACHABLE.
32      Use AS_HELP_STRING macro instead of AC_HELP_STRING in the
33        configure scripts, to avoid deprecation warnings.
34      Change availability tags in pcap.h to make it easier to
35        arrange for it to be used in Darwin releases.
36      Use AS_HELP_STRING for --enable-remote.
37      Fix some formatting string issues found by cppcheck.
38      Various small code and comment cleanups.
39      Use PCAP_ERROR (defined as -1) rather than explicit -1 for
40        functions the documentation says return PCAP_ERROR.
41      Remove unused code from the filter compiler.
42      Use _declspec(deprecated(msg)) rather than __pragma(deprecated)
43        for Windows deprecation warnings, so the message that was
44        specified shows up.
45      diag-control.h: define PCAP_DO_PRAGMA() iff we're going to use it.
46      Use "%d" to print some signed ints.
47      Use the Wayback Machine for a removed document in a comment.
48      Add some const qualifiers.
49      RDMA: Use PRIu64 to print a uint64_t.
50    "Dead" pcap_ts from pcap_open_dead() and ..._with_tstamp_precision():
51        Don't crash if pcap_breakloop() is called.
52    Savefiles:
53      Fix pcap_dispatch() to return number of packets processed, rather
54        than 0, even at EOF.
55      If we get an error writing the packet header, don't write the
56        packet data.
57      Put PFLOG UID and PID values in the header into host byte order
58        when reading a LINKTYPE_PFLOG file.
59      Put CAN ID field in CAN pseudo-headers for LINUX_SLL2, as we do
60        for LINUX_SLL.
61      Fix inorrectly-computed "real" length for isochronous USB
62        transfers when reading savefiles.
63      Don't crash if pcap_can_set_rfmon() is called.
64      Fix pcap_offline_read() loop.
65    Capture:
66      Never process more than INT_MAX packets in a pcap_dispatch() call,
67        to avoid integer overflow (issue #1087).
68      Improve error messages for "no such device" and "permission
69        denied" errors.
70      SITA: Fix a typo in a variable name.
71    Packet filtering:
72      Get PFLOG header length from the length value in the header.
73      Support all the direction, reason, and action types supported by
74        all systems that support PFLOG.
75      Don't require PFLOG support on the target machine in order to
76        support PFLOG filtering (also fixes issue #1076).
77      Expand abbreviations into "proto X" properly.
78      gencode.c: Update a comment about the VLAN TPID test.
79      Add the minimum and maximum matching DLTs to an error message.
80    Linux:
81      Fix memory leak in capture device open (pull request #1038).
82      Fix detection of CAN/CAN FD packets in direction check (issue
83        #1051).
84      Fix double-free crashes on errors such as running on a kernel with
85        CONFIG_PACKET_MMAP not configured (issue #1054).
86      Use DLT_CAN_SOCKETCAN for CANbus interfaces (issue #1052; includes
87        changes from pull request #1035).
88      Make sure the CANFD_FDF can be relied on to indicate whether a
89        CANbus packet is a CAN frame or a CAN FD frame
90      Improve error message for "out of memory" errors for kernel
91        filters (see issue #1089).
92      Fix pcap_findalldevs() to find usbmon devices.
93      Fix handling of VLAN tagged packets if the link-layer type is
94        changed from DLT_LINUX_SLL to DLT_LINUX_SLL2 (see issue #1105).
95      Always turn on PACKET_AUXDATA (see issue #1105).
96      We require 2.6.27 or later, so PACKET_RESERVE is available.
97      Make sure there's reserved space for a DLT_LINUX_SLL2 header
98        when capturing.
99      Correctly compute the "real" length for isochronous USB transfers.
100      Don't have an eventfd descriptor open in non-blocking mode, so as
101        not to waste descriptors.
102      netfilter: Squelch a narrowing warning (To be look at before 2038).
103    BPF capture (*BSD, macOS, AIX, Solaris 11):
104      Fix case where a device open might fail, rather than falling back
105        to a smaller buffer size, when the initial buffer size is too
106        big.
107      Use an unsigned device number to iterate over BPF devices, to
108        squelch a compiler warning.
109    NetBSD:
110      Fix handling of LINKTYPE_HDLC/DLT_HDLC.
111    rpcap:
112      Fix unaligned accesses in rpcapd (pull request #1037).
113      Fix code to process port number.
114      Clean up findalldevs code in rpcapd.
115      Clean up bufferizing code.
116      Fix a file descriptor/handle leak in pcap_findalldevs_ex()
117        (Coverity CID 1507240).
118      Improve error messages for host and port resolution errors.
119      Fix connect code not to fail if both IPv4 and IPv6 addresses are
120        tried.
121      Improve connect failure error message.
122      Provide an error message for a bad authentication reply size.
123      For link-layer types with host-endian fields in the header, fix
124        those fields if capturing from a server with a different byte
125        order.
126      Suppress temporarily the warnings with "enable remote packet capture".
127    Windows:
128      Add support for NdisMediumIP (pull request #1027).
129      Don't require applications using pcap to be built with VS 2015 or
130        later.
131      Use the correct string for the DLL VersionInfo.
132      Remove unnecessary DllMain() function.
133      Correctly handle ERROR_INVALID_FUNCTION from
134        PacketGetTimestampModes() (indicate that WinPcap or an older
135        version of Npcap is probably installed).
136      Fix use-after-free in some cases when a pcap_t is closed.
137      Make sure an error is returned by pcap_create_interface() if
138        PacketOpenAdapter() fails.
139      Return an error if the driver reports 0 timestamp modes supported.
140      Close the ADAPTER handle for some errors in
141        pcap_create_interface().
142      Get rid of old umaintained VS project files.
143      Fix deprecation warning for pcap_handle().
144      Npcap is now at npcap.com, not npcap.org.
145      Make sure "no such device" and "no permission to open device"
146        errors show up in pcap_activate(), not pcap_create() (fixes,
147        among other things, tcpdump -i <interface-number>).
148      npcap: squelch deprecation warnings for kernel dump mode.
149    Haiku:
150      Implement pcap_lib_version(), as now required.
151      Handle negative or too-large snaplen values.
152      Fix various build issues and warnings.
153    Building and testing:
154      Update configure-time universal build checks for macOS.
155      Update config.guess and config.sub.
156      If we look for an SSL library with pkg-config in configure script,
157        try pkg-config first.
158      If we have pkg-config and Homebrew, try to set pkg-config up to
159        find Homebrew packages.
160      Handle some Autoconf/make errors better.
161      Use "git archive" for the "make releasetar" process.
162      Remove the release candidate rcX targets.
163      Fix compiling on Solaris 9/SPARC and 11/AMD64.
164      Address assorted compiler warnings.
165      Fix cross-building on Linux for Windows with mingw32 for Win64
166        (pull request #1031).
167      Properly set installation directory on Windows when not compiling
168        with MSVC.
169      Fix configure script checks for compiler flags.
170      Give more details if check for usable (F)Lex fails.
171      Fix compiling with GCC 4.6.4.
172      Don't use add_compile_options() with CMake, as we currently don't
173        require 2.8.12, where it first appeared.
174      Don't provide -L/usr/lib for pkg-config --libs in pkg-config.
175      Fix error message for inadequate Bison/Berkeley YACC.
176      configure: correctly do some DPDK checks.
177      Only use pkg-config when checking for DPDK.
178      Allow the path in which DPDK is installed to be specified.
179      Use pkg-config first when checking for libibverbs.
180      CMake: fix check for libibverbs with Sun's C compiler.
181      Have CMake warn if no capture mechanism can be found.
182      Don't do stuff requiring 3.19 or later on earlier CMakes.
183      Squelch some CMake warnings.
184      Fix diag-control.h to handle compiling with clang-cl (issues
185        #1101 and #1115).
186      Cleanup various leftover cruft in the configure script.
187      Fix building without protochain support. (GH #852)
188      Check for a usable YACC (or Bison) and {F}lex in CMake, as we do
189        in autotools.
190      Only check for a C++ compiler on Haiku, as that's the only
191        platform with C++ code, and make sure they generate code for
192        the same instruction set bit-width (both 32-bit or both 64-bit)
193        (issue #1112).
194      On Solaris, check the target bit-width and set PKG_CONFIG_PATH
195        appropriately, to handle the mess that is the D-Bus library
196        package (issue #1112).
197      Fix generation of pcap-config and libpcap.pc files (issue #1062).
198      pcap-config: don't assume the system library directory is /usr/lib.
199      pcap-config: add a --static-pcap-only flag.
200      Cirrus CI: Use the same configuration as for the main branch.
201      Add four libpcap test files.
202      Update Npcap SDK to 1.13.
203      Makefile.in: Use TEST_DIST, like for tcpdump.
204      Remove awk code from mkdep.
205      Cirrus CI: Add the libssl-dev package in the Linux task.
206      Cirrus CI: Add the openssl@3 brew package in the macOS task.
207      Get "make shellcheck" to pass again.
208      CMake: Build valgrindtest only if Autoconf would.
209      CMake: use ${CMAKE_INSTALL_SBINDIR} rather than just sbin.
210      CMake: use NUL: as the null device on Windows.
211      autoconf: fix typo in test of macOS version.
212      Makefile.in: Add two missing files in EXTRA_DIST.
213      autotools, cmake: provide an rpath option if necessary.
214      configure: get rid of the attempt to auto-run PKG_PROG_PKG_CONFIG.
215      configure: use PKG_CHECK_MODULES to run pkg-config.
216    Documentation:
217      Add README.solaris.md.
218      Add SCTP to pcap-filter(7).
219      Note that = and == are the same operator in filters (issue #1044).
220      Update INSTALL.md, README.md, and README.solaris.md.
221      Update and clean up CONTRIBUTING.md.
222      Trim documentation of support for now-dead UN*Xe and older
223        versions of other UN*Xes.
224      Move the "how to allocate a LINKTYPE_/DLT_ value" documentation to
225        the web site.
226      Clean up man pages.
227      Move README.capture-module to the web site.
228      Improve some protocol details in pcap-filter(7).
229      Refine "relop" notes in pcap-filter(7).
230      In pcap-filter(7) "domain" is an id.
231      Discuss backward compatibility in pcap-filter(7).
232      Other improvements to pcap-filter(7).
233      Document pcap_breakloop(3PCAP) interaction with threads better.
234      Document PCAP_ERROR_NOT_ACTIVATED for more routines.
235
236Wednesday, June 9, 2021:
237  Summary for 1.10.1 libpcap release:
238    Packet filtering:
239      Fix "type XXX subtype YYY" giving a parse error
240    Source code:
241      Add PCAP_AVAILABLE_1_11.
242    Building and testing:
243      Rename struct bpf_aux_data to avoid NetBSD compile errors
244      Squelch some compiler warnings
245      Squelch some Bison warnings
246      Fix cross-builds with older kernels lacking BPF_MOD and BPF_XOR
247      Fix Bison detection for minor version 0.
248      Fix parallel build with FreeBSD make.
249      Get DLT_MATCHING_MAX right in gencode.c on NetBSD.
250      Define timeradd() and timersub() if necessary.
251      Fix Cygwin/MSYS target directories.
252      Fix symlinking with DESTDIR.
253      Fix generation of libpcap.pc with CMake when not building a shared
254          library.
255      Check for Arm64 as well as x86-64 when looking for packet.lib on
256          Windows.
257    Documentation:
258      Refine Markdown in README.md.
259      Improve the description of portrange in filters.
260      README.linux.md isn't Markdown, rename it just README.linux.
261    pcapng:
262      Support reading version 1.2, which some writers produce, and which
263          is the same as 1.0 (some new block types were added, but
264          that's not sufficient reason to bump the minor version number,
265          as code that understands those new block types can handle them
266          in a 1.0 file)
267    Linux:
268      Drop support for text-mode USB captures, as we require a 2.6.27
269          or later kernel (credit to Chaoyuan Peng for noting the
270          sscanf vulnerabilities in the text-mode code that got me to
271          realize that we didn't need this code any more)
272      Bluetooth: fix non-blocking mode.
273      Don't assume that all compilers used to build for Linux support
274          the __atomic builtins
275    Windows:
276      Add more information in "interface disappeared" error messages, in
277        the hopes of trying to figure out the cause.
278      Treat ERROR_DEVICE_REMOVED as "device was removed".
279      Indicate in the error message which "device was removed" error
280          occurred.
281      Report the Windows error status if PacketSendPacket() fails.
282      Use %lu for ULONGs in error message formats.
283      Don't treat the inability to find airpcap.dll as an error.
284      Ignore spurious error reports by Microsoft Surface mobile
285          telephony modem driver
286    rpcap:
287      Clean up error checking and error messages for server address
288          lookup.
289
290Tuesday, December 29, 2020
291  Summary for 1.10.0 libpcap release
292    Add support for capturing on DPDK devices
293    Label most APIs by the first release in which they're available
294    Fix some memory leaks, including in pcap_compile()
295    Add pcap_datalink_val_to_description_or_dlt()
296    Handle the pcap private data in a fashion that makes fewer
297       assumptions about memory layouts (might fix GitHub issue #940
298       on ARM)
299    Fix some thread safety issues
300    pcap_findalldevs(): don't sort interfaces by unit number
301    Always return a list of supported time-stamp types, even if only
302        host time stamps are supported
303    Increase the maximum snaplen for LINKTYPE_USBPCAP/DLT_USBPCAP
304    Report the DLT description in error messages
305    Add pcap_init() for first-time initialization and global option
306        setting; it's not required, but may be used
307    Remove (unused) SITA support
308    Capture file reading:
309        Correctly handle pcapng captures with more than one IDB with a
310            snspshot length greater than the supported maximum
311    Capture file writing:
312        Create the file in pcap_dump_open_append() if it doesn't exist
313    Packet filtering:
314        Fix "unknown ether proto 'aarp'"
315        Add a new filter "ifindex" for DLT_LINUX_SLL2 files on all
316            platforms and live Linux captures
317        Add a hack to the optimizer to try to catch certain optimizer
318            loops (should prevent GitHub issue #112)
319        Show special Linux BPF offsets symbolically in bpf_image() and
320            bpf_dump()
321        Added support for ICMPv6 types 1-4 as tokens with names
322        Remove undocumented and rather old "ether proto" protocols
323        Catch invalid IPv4 addresses in filters
324        Don't assume ARM supports unaligned accesses
325    Security and other issues found by analysis:
326        Fix various security issues reported by Charles Smith at Tangible
327            Security
328        Fix various security issues reported by Include Security
329        Fix some issues found by cppcheck.
330        Add some overflow checks in the optimizer
331    rpcap:
332        Support rpcap-over-TLS
333        Redo protocol version negotiation to avoid problems with old
334            servers (it still works with servers using the old negotiation,
335            as well as servers not supporting negotiation)
336        Error handling cleanups
337        Add some new authentication libpcap error codes for specific
338            errors
339        Fix some inetd issues in rpcapd
340        Fix rpcapd core dumps with invalid configuration file
341        On UN*X, don't have rpcapd tell the client why authentication
342            failed, so a brute-force attacker can't distinguish between
343            "unknown user name" and "known user name, wrong password"
344        Allow rpcapd to rebind more rapidly (GitHub issue #765)
345    Documentation:
346        Improve man pages, including adding backward compatibility notes
347    Building and testing:
348        Require, and assume, some level of C99 support in the C compiler
349        Require Visual Studio 2015 or later if using Visual Studio
350        Fix configure script issues, including with libnl on Linux
351        Fix CMake issues
352        Squelch complaints from Bison about "%define api.pure" being
353            deprecated
354        Fix compilation of pcap-tc.c
355    Linux:
356        Require PF_PACKET support, and kernel 2.6.27 or later
357        Handle systems without AF_INET or AF_UNIX socket support
358        Get rid of Wireless Extensions for turning monitor mode on
359        Proper memory sync for PACKET_MMAP (may prevent GitHub issue
360            #898)
361        Drop support for libnl 1 and 2.
362        Return error on interface going away, but not if it just went
363            down but is still present
364        Set socket protocol only after packet ring configured,
365            reducing bogus packet drop reports
366        Get ifdrop stats from sysfs.
367        When adjusting BPF programs, do not subtract the
368            SLL[2]_HDR_LEN if the location is negative (special metadata
369            offset), to preserve references to metadata; see
370            https://github.com/the-tcpdump-group/tcpdump/issues/480#issuecomment-486827278
371        Report a warning for unknown ARPHRD types
372        Have pcap_breakloop() forcibly break out of a sleeping
373            capture loop
374        Add support for DSA data link types
375        For raw USB bus capture, use the snapshot length to set the
376            buffer size, and set the len field to reflect the length
377            in the URB (GitHub issue #808)
378        With a timeout of zero, wait indefinitely
379        Clean up support for some non-GNU libc C libraries
380        Add DLT_LINUX_SLL2 for cooked-mode captures
381        Probe CONFIGURATION descriptor of connected USB devices
382        Treat EPERM on ethtool ioctls as meaning "not supported", as
383            permissions checks are done before checking whether the
384            ioctl is supported at all
385    macOS:
386        Cope with getting EPWROFF from SIOCGIFMEDIA
387        Treat EPERM on SIOCGIFMEDIA as meaning "not supported", as
388            permissions checks are done before checking whether the
389            ioctl is supported at all
390        Treat ENXIO when reading packets as meaning "the interface
391            was removed"
392        Report "the interface disappeared", not "the interface went
393            down", if the interface was removed during a capture
394    FreeBSD:
395        Treat ENXIO as meaning "the interface was removed"
396        Report "the interface disappeared", not "the interface went
397            down", if the interface was removed during a capture
398    NetBSD:
399        Treat ENXIO as meaning "the interface was removed"
400        Report "the interface disappeared", not "the interface went
401            down", if the interface was removed during a capture
402    OpenBSD:
403        Treat EIO as meaning "the interface was removed"
404        Report "the interface disappeared", not "the interface went
405            down", if the interface was removed during a capture
406    DragonFly BSD:
407        Treat ENXIO as meaning "the interface was removed"
408        Report "the interface disappeared", not "the interface went
409            down", if the interface was removed during a capture
410    Solaris:
411        Treat ENXIO as meaning "the interface was removed"
412        Report "the interface disappeared", not "the interface went
413            down", if the interface was removed during a capture
414    AIX:
415        Fix loading of BPF kernel extension
416        Treat ENXIO as meaning "the interface was removed"
417        Report "the interface disappeared", not "the interface went
418            down", if the interface was removed during a capture
419    Windows:
420        Make the snapshot length work even if pcap_setfilter()
421            isn't called
422        Fix compilation on Cygwin/MSYS
423        Add pcap_handle(), and deprecate pcap_fileno()
424        Report PCAP_ERROR_NO_SUCH_DEVICE for a non-existent device
425        Return an appropriate error message for device removed or
426            device unusable due to a suspend/resume
427        Report a warning for unknown NdisMedium types
428        Have pcap_breakloop() forcibly break out of a sleeping
429            capture loop
430        Clean up building DLL
431        Handle CRT mismatch for pcap_dump_fopen()
432        Map NdisMediumWirelessWan to DLT_RAW
433        Add AirPcap support in a module, rather than using
434            WinPcap/Npcap's support for it
435        Report the system error for PacketSetHwFilter() failures
436        Add support for getting and setting packet time stamp types
437            with Npcap
438        Have pcap_init() allow selecting whether the API should use
439            local code page strings or UTF-8 strings (including error
440            messages)
441    Haiku:
442        Add capture support
443
444Sunday, July 22, 2018
445  Summary for 1.9.1 libpcap release
446    Mention pcap_get_required_select_timeout() in the main pcap man page
447    Fix pcap-usb-linux.c build on systems with musl
448    Fix assorted man page and other documentation issues
449    Plug assorted memory leaks
450    Documentation changes to use https:
451    Changes to how time stamp calculations are done
452    Lots of tweaks to make newer compilers happier and warning-free and
453        to fix instances of C undefined behavior
454    Warn if AC_PROG_CC_C99 can't enable C99 support
455    Rename pcap_set_protocol() to  pcap_set_protocol_linux().
456    Align pcap_t private data on an 8-byte boundary.
457    Fix various error messages
458    Use 64-bit clean API in dag_findalldevs()
459    Fix cleaning up after some errors
460    Work around some ethtool ioctl bugs in newer Linux kernels (GitHub
461        issue #689)
462    Add backwards compatibility sections to some man pages (GitHub issue
463        #745)
464    Fix autotool configuration on AIX and macOS
465    Don't export bpf_filter_with_aux_data() or struct bpf_aux_data;
466        they're internal-only and subject to change
467    Fix pcapng block size checking
468    On macOS, don't build rpcapd or test programs any fatter than they
469        need to be
470    Fix reading of capture statistics for Linux USB
471    Fix packet size values for Linux USB packets (GitHub issue #808)
472    Check only VID in VLAN test in filters (GitHub issue #461)
473    Fix pcap_list_datalinks on 802.11 devices on macOS
474    Fix overflows with very large snapshot length in pcap file
475    Improve parsing of rpcapd configuration file (GitHub issue #767)
476    Handle systems without strlcpy() or strlcat() better
477    Fix crashes and other errors with invalid filter expressions
478    Fix use of uninitialized file descriptor in remote capture
479    Fix some CMake issues
480    Fix some divide-by-zero issues with the filter compiler
481    Work around a GNU libc bug in pcap_nametonetaddr()
482    Add support for DLT_LINUX_SLL2
483    Fix handling of the packet-count argument for Myricom SNF devices
484    Fix --disable-rdma in configure script (GitHub issue #782)
485    Fix compilation of TurboCap support (GitHub issue #764)
486    Constify first argument to pcap_findalldevs_ex()
487    Fix a number of issues when running rpcapd as an inetd-style daemon
488    Fix CMake issues with D-Bus libraries
489    In rpcapd, clean up termination of a capture session
490    Redo remote capture protocol negotiation
491    In rpcapd, report the same error for "invalid user name" and
492        "invalid password", to make brute-forcing harder
493    For remote captures, add an error code for "the server requires TLS"
494    Fix pcap_dump_fopen() on Windows to avoid clashes between
495        {Win,N}Pcap and application C runtimes
496    Fix exporting of functions from Windows DLLs (GitHub issue #810)
497    Fix building as part of Npcap
498    Allow rpcapd to rebind more rapidly
499    Fix building shared libpcap library on midipix (midipix.org)
500    Fix hack to detect UTF-16LE adapter names on Windows not to go past
501        the end of the string
502    Fix handling of "wireless WAN" (mobile phone network modems) on
503        Windows with WinPcap/Npcap (GitHub issue #824)
504    Have pcap_dump_open_append() create the dump file if it doesn't
505        exists (GitHub issue #247)
506    Fix the maxmum snapshot length for DLT_USBPCAP
507    Use -fPIC when building for 64-bit SPARC on Linux (GitHub issue #837)
508    Fix CMake 64-bit library installation directory on some Linux
509        distributions
510    Boost the TPACKET_V3 timeout to the maximum if a timeout of 0 was
511        specified
512    Five CVE-2019-15161, CVE-2019-15162, CVE-2019-15163, CVE-2019-15164, CVE-2019-15165
513    PCAPNG reader applies some sanity checks before doing malloc().
514
515Sunday, June 24, 2018, by mcr@sandelman.ca
516  Summary for 1.9.0 libpcap release
517    Added testing system to libpcap, independent of tcpdump
518    Changes to how pcap_t is activated
519    Adding support for Large stream buffers on Endace DAG cards
520    Changes to BSD 3-clause license to 2-clause license
521    Additions to TCP header parsing, per RFC3168
522    Add CMake build process (extensive number of changes)
523    Assign a value for OpenBSD DLT_OPENFLOW.
524    Support setting non-blocking mode before activating.
525    Extensive build support for Windows VS2010 and MINGW (many many changes, over many months)
526    Added RPCAPD support when --enable-remote (default no)
527    Add the rpcap daemon source and build instructions.
528    Put back the greasy "save the capture filter string so we can tweak it"
529        hack, that keeps libpcap from capturing rpcap traffic.
530    Fixes for captures on MacOS, utun0
531    fixes so that non-AF_INET addresses, are not ==AF_INET6 addresses.
532    Add a linktype for IBM SDLC frames containing SNA PDUs.
533    pcap_compile() in 1.8.0 and later is newly thread-safe.
534    bound snaplen for linux tpacket_v2 to ~64k
535    Make VLAN filter handle both metadata and inline tags
536    D-Bus captures can now be up to 128MB in size
537    Added LORATAP DLT value
538    Added DLT_VSOCK for https://qemu-project.org/Features/VirtioVsock
539    probe_devices() fixes not to overrun buffer for name of device
540    Add linux-specific pcap_set_protocol_linux() to allow specifying a specific capture protocol.
541    RDMA sniffing support for pcap
542    Add Nordic Semiconductor Bluetooth LE sniffer link-layer header type.
543    fixes for reading /etc/ethers
544    Make it possible to build on Windows without packet.dll.
545    Add tests for large file support on UN*X.
546    Solaris fixes to work with 2.8.6
547    configuration test now looks for header files, not capture devices present
548    Fix to work with Berkeley YACC.
549    fixes for DragonBSD compilation of pcap-netmap.c
550    Clean up the ether_hostton() stuff.
551    Add an option to disable Linux memory-mapped capture support.
552    Add DAG API support checks.
553    Add Septel, Myricom SNF, and Riverbed TurboCap checks.
554    Add checks for Linux USB, Linux Bluetooth, D-Bus, and RDMA sniffing support.
555    Add a check for hardware time stamping on Linux.
556    Don't bother supporting pre-2005 Visual Studio.
557    Increased minimum autoconf version requirement to 2.64
558    Add DLT value 273 for XRA-31 sniffer
559    Clean up handing of signal interrupts in pcap_read_nocb_remote().
560    Use the XPG 4.2 versions of the networking APIs in Solaris.
561    Fix, and better explain, the "IPv6 means IPv6, not IPv4" option setting.
562    Explicitly warn that negative packet buffer timeouts should not be used.
563    rpcapd: Add support inetd-likes, including xinetd.conf, and systemd units
564    Rename DLT_IEEE802_15_4 to DLT_IEEE802_15_4_WITHFCS.
565    Add DISPLAYPORT AUX link type
566    Remove the sunos4 kernel modules and all references to them.
567    Add more interface flags to pcap_findalldevs().
568  Summary for 1.9.0 libpcap release (to 2017-01-25 by guy@alum.mit.edu)
569    Man page improvements
570    Fix Linux cooked mode userspace filtering (GitHub pull request #429)
571    Fix compilation if IPv6 support not enabled
572    Fix some Linux memory-mapped capture buffer size issues
573    Don't fail if kernel filter can't be set on Linux (GitHub issue
574      #549)
575    Improve sorting of interfaces for pcap_findalldevs()
576    Don't list Linux usbmon devices if usbmon module isn't loaded
577    Report PCAP_ERROR_PERM_DENIED if no permission to open Linux usbmon
578      devices
579    Fix DLT_ type for Solaris IPNET devices
580    Always return an error message for errors finding DAG or Myricom
581      devices
582    If possible, don't require that a device be openable when
583      enumerating them for pcap_findalldevs()
584    Don't put incompletely-initialized addresses in the address list for
585    When finding Myricom devices, update description for regular
586      interfaces that are Myricom devices and handle SNF_FLAGS=0x2(port
587      aggregation enabled)
588    Fix compilation error in DAG support
589    Fix issues with CMake configuration
590    Add support for stream buffers larger than 2GB on newer DAG cards
591    Remove support for building against DAG versions without STREAMS
592      support (before dag-3.0.0 2007)
593
594Tuesday, Oct. 25, 2016 mcr@sandelman.ca
595  Summary for 1.8.1 libpcap release
596    Add a target in Makefile.in for Exuberant Ctags use: 'extags'.
597    Rename configure.in to configure.ac: autoconf 2.59
598    Clean up the name-to-DLT mapping table.
599    Add some newer DLT_ values: IPMI_HPM_2,ZWAVE_R1_R2,ZWAVE_R3,WATTSTOPPER_DLM,ISO_14443,RDS
600    Clarify what the return values are for both success and failure.
601    Many changes to build on windows
602    Check for the "break the loop" condition in the inner loop for TPACKET_V3.
603    Fix handling of packet count in the TPACKET_V3 inner loop: GitHub issue #493.
604    Filter out duplicate looped back CAN frames.
605    Fix the handling of loopback filters for IPv6 packets.
606    Add a link-layer header type for RDS (IEC 62106) groups.
607    Use different intermediate folders for x86 and x64 builds on Windows.
608    On Linux, handle all CAN captures with pcap-linux.c, in cooked mode.
609    Removes the need for the "host-endian" link-layer header type.
610    Compile with '-Wused-but-marked-unused' in devel mode if supported
611    Have separate DLTs for big-endian and host-endian SocketCAN headers.
612    Reflect version.h being renamed to pcap_version.h.
613    Require that version.h be generated: all build procedures we support generate version.h (autoconf, CMake, MSVC)!
614    Properly check for sock_recv() errors.
615    Re-impose some of Winsock's limitations on sock_recv().
616    Replace sprintf() with pcap_snprintf().
617    Fix signature of pcap_stats_ex_remote().
618    Initial cmake support for remote packet capture.
619    Have rpcap_remoteact_getsock() return a SOCKET and supply an "is active" flag.
620    Clean up {DAG, Septel, Myricom SNF}-only builds.
621    Do UTF-16-to-ASCII conversion into the right place.
622    pcap_create_interface() needs the interface name on Linux.
623    Clean up hardware time stamp support: the "any" device does not support any time stamp types.
624    Add support for capturing on FreeBSD usbusN interfaces.
625    Add a LINKTYPE/DLT_ value for FreeBSD USB.
626    Go back to using PCAP_API on Windows.
627    CMake support
628    Add TurboCap support from WinPcap.
629    Recognize 802.1ad nested VLAN tag in vlan filter.
630
631Thursday Sep. 3, 2015 guy@alum.mit.edu
632  Summary for 1.7.5 libpcap release
633	Man page cleanups.
634	Add some allocation failure checks.
635	Fix a number of Linux/ucLinux configure/build issues.
636	Fix some memory leaks.
637	Recognize 802.1ad nested VLAN tag in vlan filter.
638	Fix building Bluetooth Linux Monitor support with BlueZ 5.1+
639
640Saturday Jun. 27, 2015 mcr@sandelman.ca
641  Summary for 1.7.4 libpcap release
642	Include fix for GitHub issue #424 -- out of tree builds.
643
644Friday Apr. 10, 2015 guy@alum.mit.edu
645  Summary for 1.7.3 libpcap release
646	Work around a Linux bonding driver bug.
647
648Thursday Feb. 12, 2015 guy@alum.mit.edu/mcr@sandelman.ca
649  Summary for 1.7.2 libpcap release
650	Support for filtering Geneve encapsulated packets.
651	Generalize encapsulation handling, fixing some bugs.
652	Don't add null addresses to address lists.
653	Add pcap_dump_open_append() to open for appending.
654	Fix the swapping of isochronous descriptors in Linux USB.
655	Attempt to handle TPACKET_V1 with 32-bit userland and 64-bit kernel.
656
657Wednesday Nov. 12, 2014 guy@alum.mit.edu/mcr@sandelman.ca
658  Summary for 1.7.0 libpcap release
659	Fix handling of zones for BPF on Solaris
660	new DLT for ZWAVE
661	clarifications for read timeouts.
662	Use BPF extensions in compiled filters, fixing VLAN filters
663	some fixes to compilation without stdint.h
664	EBUSY can now be returned by SNFv3 code.
665	Fix the range checks in BPF loads
666	Various DAG fixes.
667	Various Linux fixes.
668
669Monday Aug. 12, 2014 guy@alum.mit.edu
670  Summary for 1.6.2 libpcap release
671	Don't crash on filters testing a non-existent link-layer type
672	    field.
673	Fix sending in non-blocking mode on Linux with memory-mapped
674	    capture.
675	Fix timestamps when reading pcap-ng files on big-endian
676	    machines.
677
678Saturday  Jul. 19, 2014 mcr@sandelman.ca
679  Summary for 1.6.1 libpcap release
680	some fixes for the any device
681	changes for how --enable-XXX (--enable-sniffing, --enable-can) works
682
683Wednesday Jul. 2, 2014 mcr@sandelman.ca
684  Summary for 1.6.0 libpcap release
685        Don't support D-Bus sniffing on OS X
686        fixes for byte order issues with NFLOG captures
687        Handle using cooked mode for DLT_NETLINK in activate_new().
688        on platforms where you can not capture on down interfaces, do not list them
689        but: do list interfaces which are down, if you can capture on them!
690
691Wednesday December 18, 2013 guy@alum.mit.edu
692Summary for 1.5.3 libpcap release
693	Don't let packets that don't match the current filter get to the
694	    application when TPACKET_V3 is used. (GitHub issue #331)
695	Fix handling of pcap_loop()/pcap_dispatch() with a packet count
696	    of 0 on some platforms (including Linux with TPACKET_V3).
697	    (GitHub issue #333)
698	Work around TPACKET_V3 deficiency that causes packets to be lost
699	    when a timeout of 0 is specified. (GitHub issue #335)
700	Man page formatting fixes.
701
702Wednesday December 4, 2013 guy@alum.mit.edu
703Summary for 1.5.2 libpcap release
704	Fix libpcap to work when compiled with TPACKET_V3 support and
705	    running on a kernel without TPACKET_V3 support. (GitHub
706	    issue #329)
707
708Wednesday November 20, 2013 guy@alum.mit.edu
709Summary for 1.5.1 libpcap release
710	Report an error, rather than crashing, if an IPv6 address is
711	    used for link-layer filtering.  (Wireshark bug 9376)
712
713Wednesday October 30, 2013 guy@alum.mit.edu
714Summary for 1.5.0 libpcap release
715	TPACKET_V3 support added for Linux
716	Point users to the the-tcpdump-group repository on GitHub rather
717	    than the mcr repository
718	Checks added for malloc()/realloc()/etc. failures
719	Fixed build on Solaris 11
720	Support filtering E1 SS7 traffic on MTP2 layer Annex A
721	Use "ln -s" to link man pages by default
722        Add support for getting nanosecond-resolution time stamps when
723	    capturing and reading capture files
724        Many changes to autoconf to deal better with non-GCC compilers
725        added many new DLT types
726
727Saturday April 6, 2013 guy@alum.mit.edu
728Summary for 1.4.0 libpcap release
729	Add netfilter/nfqueue interface.
730	If we don't have support for IPv6 address resolution, support,
731	    in filter expressions, what IPv6 stuff we can.
732	Fix pcap-config to include -lpthread if canusb support is
733	    present
734	Try to fix "pcap_parse not defined" problems when --without-flex
735	    and --without-bison are used when you have Flex and Bison
736	Fix some issues with the pcap_loop man page.
737	Fix pcap_getnonblock() and pcap_setnonblock() to fill in the
738	    supplied error message buffer
739	Fix typo that, it appeared, would cause pcap-libdlpi.c not to
740	    compile (perhaps systems with libdlpi also have BPF and use
741	    that instead)
742	Catch attempts to call pcap_compile() on a non-activated pcap_t
743	Fix crash on Linux with CAN-USB support without usbfs
744	Fix addition of VLAN tags for Linux cooked captures
745	Check for both EOPNOTSUPP and EINVAL after SIOCETHTOOL ioctl, so
746	    that the driver can report either one if it doesn't support
747	    SIOCETHTOOL
748	Add DLT_INFINIBAND and DLT_SCTP
749	Describe "proto XXX" and "protochain XXX" in the pcap-filter man
750	    page
751	Handle either directories, or symlinks to directories, that
752	    correspond to interfaces in /sys/class/net
753	Fix handling of VLAN tag insertion to check, on Linux 3.x
754	    kernels, for VLAN tag valid flag
755	Clean up some man pages
756	Support libnl3 as well as libnl1 and libnl2 on Linux
757	Fix handling of Bluetooth devices on 3.x Linux kernels
758
759Friday  March 30, 2012.  mcr@sandelman.ca
760Summary for 1.3.0 libpcap release
761        Handle DLT_PFSYNC in {FreeBSD, other *BSD+Mac OS X, other}.
762        Linux: Don't fail if netfilter isn't enabled in the kernel.
763        Add new link-layer type for NFC Forum LLCP.
764        Put the CANUSB stuff into EXTRA_DIST, so it shows up in the release tarball.
765        Add LINKTYPE_NG40/DLT_NG40.
766        Add DLT_MPEG_2_TS/LINKTYPE_MPEG_2_TS for MPEG-2 transport streams.
767        [PATCH] Fix AIX-3.5 crash with read failure during stress
768        AIX fixes.
769        Introduce --disable-shared configure option.
770        Added initial support for canusb devices.
771        Include the pcap(3PCAP) additions as 1.2.1 changes.
772        many updates to documentation: pcap.3pcap.in
773        Improve 'inbound'/'outbound' capture filters under Linux.
774        Note the cleanup of handling of new DLT_/LINKTYPE_ values.
775        On Lion, don't build for PPC.
776        For mac80211 devices we need to clean up monitor mode on exit.
777
778Friday  December 9, 2011.  guy@alum.mit.edu.
779Summary for 1.2.1 libpcap release
780	Update README file.
781	Fix typos in README.linux file.
782	Clean up some compiler warnings.
783	Fix Linux compile problems and tests for ethtool.h.
784	Treat Debian/kFreeBSD and GNU/Hurd as systems with GNU
785	 toolchains.
786	Support 802.1 QinQ as a form of VLAN in filters.
787	Treat "carp" as equivalent to "vrrp" in filters.
788	Fix code generated for "ip6 protochain".
789	Add some new link-layer header types.
790	Support capturing NetFilter log messages on Linux.
791	Clean up some error messages.
792	Turn off monitor mode on exit for mac80211 interfaces on Linux.
793	Fix problems turning monitor mode on for non-mac80211 interfaces
794	 on Linux.
795	Properly fail if /sys/class/net or /proc/net/dev exist but can't
796	 be opened.
797	Fail if pcap_activate() is called on an already-activated
798	 pcap_t, and add a test program for that.
799	Fix filtering in pcap-ng files.
800	Don't build for PowerPC on Mac OS X Lion.
801	Simplify handling of new DLT_/LINKTYPE_ values.
802	Expand pcap(3PCAP) man page.
803
804Sunday  July 24, 2011.  mcr@sandelman.ca.
805Summary for 1.2 libpcap release
806        All of the changes listed below for 1.1.1 and 1.1.2.
807        Changes to error handling for pcap_findalldevs().
808        Fix the calculation of the frame size in memory-mapped captures.
809        Add a link-layer header type for STANAG 5066 D_PDUs.
810        Add a link-layer type for a variant of 3GPP TS 27.010.
811        Noted real nature of LINKTYPE_ARCNET.
812        Add a link-layer type for DVB-CI.
813        Fix configure-script discovery of VLAN acceleration support.
814         see https://netoptimizer.blogspot.com/2010/09/tcpdump-vs-vlan-tags.html
815        Linux, HP-UX, AIX, NetBSD and OpenBSD compilation/conflict fixes.
816        Protect against including AIX 5.x's <net/bpf.h> having been included.
817        Add DLT_DBUS, for raw D-Bus messages.
818        Treat either EPERM or EACCES as "no soup for you".
819        Changes to permissions on DLPI systems.
820        Add DLT_IEEE802_15_4_NOFCS for 802.15.4 interfaces.
821
822Fri.    August 6, 2010.  guy@alum.mit.edu.
823Summary for 1.1.2 libpcap release
824	Return DLT_ values, not raw LINKTYPE_ values from
825	  pcap_datalink() when reading pcap-ng files
826	Add support for "wlan ra" and "wlan ta", to check the RA and TA
827	  of WLAN frames that have them
828	Don't crash if "wlan addr{1,2,3,4}" are used without 802.11
829	  headers
830	Do filtering on USB and Bluetooth capturing
831	On FreeBSD/SPARC64, use -fPIC - it's apparently necessary
832	Check for valid port numbers (fit in a 16-bit unsigned field) in
833	  "port" filters
834	Reject attempts to put savefiles into non-blocking mode
835	Check for "no such device" for the "get the media types" ioctl
836	  in *BSD
837	Improve error messages from bpf_open(), and let it do the error
838	  handling
839	Return more specific errors from pcap_can_set_rfmon(); fix
840	  documentation
841	Update description fetching code for FreeBSD, fix code for
842	  OpenBSD
843	Ignore /sys/net/dev files if we get ENODEV for them, not just
844	  ENXIO; fixes handling of bonding devices on Linux
845	Fix check for a constant 0 argument to BPF_DIV
846	Use the right version of ar when cross-building
847	Free any filter set on a savefile when the savefile is closed
848	Include the CFLAGS setting when configure was run in the
849	  compiler flags
850	Add support for 802.15.4 interfaces on Linux
851
852Thu.    April 1, 2010.  guy@alum.mit.edu.
853Summary for 1.1.1 libpcap release
854	Update CHANGES to reflect more of the changes in 1.1.0.
855	Fix build on RHEL5.
856	Fix shared library build on AIX.
857
858Thu.	March 11, 2010.  ken@netfunctional.ca/guy@alum.mit.edu.
859Summary for 1.1.0 libpcap release
860	Add SocketCAN capture support
861	Add Myricom SNF API support
862	Update Endace DAG and ERF support
863	Add support for shared libraries on Solaris, HP-UX, and AIX
864	Build, install, and un-install shared libraries by default;
865	  don't build/install shared libraries on platforms we don't support
866	Fix building from a directory other than the source directory
867	Fix compiler warnings and builds on some platforms
868	Update config.guess and config.sub
869	Support monitor mode on mac80211 devices on Linux
870	Fix USB memory-mapped capturing on Linux; it requires a new DLT_
871	  value
872	On Linux, scan /sys/class/net for devices if we have it; scan
873	  it, or /proc/net/dev if we don't have /sys/class/net, even if
874	  we have getifaddrs(), as it'll find interfaces with no
875	  addresses
876	Add limited support for reading pcap-ng files
877	Fix BPF driver-loading error handling on AIX
878	Support getting the full-length interface description on FreeBSD
879	In the lexical analyzer, free up any addrinfo structure we got back
880	  from getaddrinfo().
881	Add support for BPF and libdlpi in OpenSolaris (and SXCE)
882	Hyphenate "link-layer" everywhere
883	Add /sys/kernel/debug/usb/usbmon to the list of usbmon locations
884	In pcap_read_linux_mmap(), if there are no frames available, call
885	  poll() even if we're in non-blocking mode, so we pick up
886	  errors, and check for the errors in question.
887	Note that poll() works on BPF devices is Snow Leopard
888	If an ENXIO or ENETDOWN is received, it may mean the device has
889	  gone away.  Deal with it.
890	For BPF, raise the default capture buffer size to from 32k to 512k
891	Support ps_ifdrop on Linux
892	Added a bunch of #ifdef directives to make wpcap.dll (WinPcap) compile
893	 under cygwin.
894	Changes to Linux mmapped captures.
895	Fix bug where create_ring would fail for particular snaplen and
896	  buffer size combinations
897	Update pcap-config so that it handles libpcap requiring
898	  additional libraries
899	Add workaround for threadsafeness on Windows
900	Add missing mapping for DLT_ENC <-> LINKTYPE_ENC
901	DLT: Add DLT_CAN_SOCKETCAN
902	DLT: Add Solaris ipnet
903	Don't check for DLT_IPNET if it's not defined
904	Add link-layer types for Fibre Channel FC-2
905	Add link-layer types for Wireless HART
906	Add link-layer types for AOS
907	Add link-layer types for DECT
908	Autoconf fixes (AIX, HP-UX, OSF/1, Tru64 cleanups)
909	Install headers unconditionally, and include vlan.h/bluetooth.h if
910	  enabled
911	Autoconf fixes+cleanup
912	Support enabling/disabling bluetooth (--{en,dis}able-bluetooth)
913	Support disabling SITA support (--without-sita)
914	Return -1 on failure to create packet ring (if supported but
915	  creation failed)
916	Fix handling of 'any' device, so that it can be opened, and no longer
917	  attempt to open it in Monitor mode
918	Add support for snapshot length for USB Memory-Mapped Interface
919	Fix configure and build on recent Linux kernels
920	Fix memory-mapped Linux capture to support pcap_next() and
921	  pcap_next_ex()
922	Fixes for Linux USB capture
923	DLT: Add DLT_LINUX_EVDEV
924	DLT: Add DLT_GSMTAP_UM
925	DLT: Add DLT_GSMTAP_ABIS
926
927Mon.    October 27, 2008.  ken@netfunctional.ca.  Summary for 1.0.0 libpcap release
928	Compile with IPv6 support by default
929	Compile with large file support on by default
930	Add pcap-config script, which deals with -I/-L flags for compiling
931	DLT: Add IPMB
932	DLT: Add LAPD
933	DLT: Add AX25 (AX.25 w/KISS header)
934	DLT: Add JUNIPER_ST
935	802.15.4 support
936	Variable length 802.11 header support
937	X2E data type support
938	SITA ACN Interface support - see README.sita
939	Support for memory-mapped capture on Linux
940	Support for zerocopy BPF on platforms that support it
941	Support for setting buffer size when opening devices
942	Support for setting monitor mode when opening 802.11 devices
943	Better support for dealing with VLAN tagging/stripping on Linux
944	Fix dynamic library support on OSX
945	Return PCAP_ERROR_IFACE_NOT_UP if the interface isn't 'UP', so applications
946	 can print better diagnostic information
947	Return PCAP_ERROR_PERM_DENIED if we don't have permission to open a device, so
948	 applications can tell the user they need to go play with permissions
949	On Linux, ignore ENETDOWN so we can continue to capture packets if the
950	 interface goes down and comes back up again.
951	On Linux, support new tpacket frame headers (2.6.27+)
952	On Mac OS X, add scripts for changing permissions on /dev/bpf* and launchd plist
953	On Solaris, support 'passive mode' on systems that support it
954	Fixes to autoconf and general build environment
955	Man page reorganization + cleanup
956	Autogenerate VERSION numbers better
957
958Mon.    September 10, 2007.  ken@xelerance.com.  Summary for 0.9.8 libpcap release
959        Change build process to put public libpcap headers into pcap subir
960        DLT: Add value for IPMI IPMB packets
961        DLT: Add value for u10 Networks boards
962        Require <net/pfvar.h> for pf definitions - allows reading of pflog formatted
963         libpcap files on an OS other than where the file was generated
964
965Wed.	April 25, 2007.  ken@xelerance.com.  Summary for 0.9.6 libpcap release
966
967	Put the public libpcap headers into a pcap subdirectory in both the
968	 source directory and the target include directory, and have include
969	 files at the top-level directory to include those headers, for
970	 backwards compatibility.
971	Add Bluetooth support
972	Add USB capturing support on Linux
973	Add support for the binary USB sniffing interface in Linux
974	Add support for new FreeBSD BIOCSDIRECTION ioctl
975	Add additional filter operations for 802.11 frame types
976	Add support for filtering on MTP2 frame types
977	Propagate some changes from the main branch, so the x.9 branch has
978	 all the DLT_ and LINKTYPE_ values that the main branch does
979	Reserved a DLT_ and SAVEFILE_ value for PPI (Per Packet Info)
980	 encapsulated packets
981	Add LINKTYPE_ for IEEE 802.15.4, with address fields padded as done
982	 by Linux drivers
983	Add LINKTYPE_ value corresponding to DLT_IEEE802_16_MAC_CPS.
984	Add DLT for IEEE 802.16 (WiMAX) MAC Common Part Sublayer
985	Add DLT for Bluetooth HCI UART transport layer
986	When building a shared library, build with "-fPIC" on Linux to support x86_64
987	Link with "$(CC) -shared" rather than "ld -shared" when building a
988	 ".so" shared library
989	Add support for autoconf 2.60
990	Fixes to discard unread packets when changing filters
991	Changes to handle name changes in the DAG library resulting from
992	 switching to libtool.
993	Add support for new DAG ERF types.
994        Add an explicit "-ldag" when building the shared library, so the DAG
995	 library dependency is explicit.
996	Mac OSX fixes for dealing with "wlt" devices
997	Fixes in add_or_find_if() & pcap_findalldevs() to optimize generating
998	 device lists
999	Fixed a bug in pcap_open_live(). The return value of PacketSetHwFilter
1000	 was not checked.
1001
1002Tue.	September 19, 2006. ken@xelerance.com. Summary for 0.9.5 libpcap release
1003
1004	Support for LAPD frames with vISDN
1005	Support for ERF on channelized T1/E1 cards via DAG API
1006	Fix capitalization that caused issues crossc compiling on Linux
1007	Better failure detection on PacketGetAdapterNames()
1008	Fixes for MPLS packet generation (link layer)
1009	OP_PACKET now matches the beginning of the packet, instead of
1010	 beginning+link-layer
1011	Add DLT/LINKTYPE for carrying FRF.16 Multi-link Frame Relay
1012	Fix allocation of buffer for list of link-layer types
1013	Added a new DLT and LINKTYPE value for ARINC 653 Interpartition Communication Messages
1014	Fixed a typo in a DLT value: it should start with DLT_ and not LINKTYPE_
1015	Redefined DLT_CAN20B and LINKTYPE_CAN20B as #190 (as this is the right value for CAN).
1016	Added definition for DLT_A429 and LINKTYPE_A429 as #184.
1017	Added a new DLT and LINKTYPE value for CAN v2.0B frames.
1018	Add support for DLT_JUNIPER_VP.
1019	Don't double-count received packets on Linux systems that
1020	 support the PACKET_STATISTICS getsockopt() argument on
1021	 PF_PACKET sockets.
1022	Add support for DLT_IEEE802_11 and DLT_IEEE802_11_RADIO link
1023	 layers in Windows
1024	Add support to build libpcap.lib and wpcap.dll under Cygnus and
1025	 MingW32.
1026
1027Mon.	September 5, 2005.  ken@xelerance.com. Summary for 0.9.4 libpcap release
1028
1029	Support for radiotap on Linux (Mike Kershaw)
1030	Fixes for HP-UX
1031	Support for additional Juniper link-layer types
1032	Fixes for filters on MPLS-encapsulated packets
1033	"vlan" filter fixed
1034	"pppoed" and "pppoes" filters added; the latter modifies later
1035	parts of the filter expression to look at the PPP headers and
1036	headers in the PPP payload
1037
1038Tue.	July 5, 2005.  ken@xelerance.com. Summary for 0.9.3 libpcap release
1039
1040	Fixes for compiling on nearly every platform,
1041		including improved 64bit support
1042	MSDOS Support
1043	Add support for sending packets
1044	OpenBSD pf format support
1045	IrDA capture (Linux only)
1046
1047Tue.   March 30, 2004. mcr@sandelman.ottawa.on.ca. Summary for 3.8.3 release
1048
1049	Fixed minor problem in gencode.c that would appear on 64-bit
1050	platforms.
1051	Version number is now sane.
1052
1053Mon.   March 29, 2004. mcr@sandelman.ottawa.on.ca. Summary for 3.8.2 release
1054
1055	updates for autoconf 2.5
1056	fixes for ppp interfaces for freebsd 4.1
1057	pcap gencode can generate code for 802.11, IEEE1394, and pflog.
1058
1059Wed.   November 12, 2003. mcr@sandelman.ottawa.on.ca. Summary for 0.8 release
1060
1061	added pcap_findalldevs()
1062	Win32 patches from NetGroup, Politecnico di Torino (Italy)
1063	OpenBSD pf, DLT_PFLOG added
1064	Many changes to ATM support.
1065	lookup pcap_lookupnet()
1066	Added DLT_ARCNET_LINUX, DLT_ENC, DLT_IEEE802_11_RADIO, DLT_SUNATM,
1067		DLT_IP_OVER_FC, DLT_FRELAY, others.
1068	Sigh.  More AIX wonderfulness.
1069	Document updates.
1070	Changes to API: pcap_next_ex(), pcap_breakloop(), pcap_dump_flush(),
1071			pcap_list_datalinks(), pcap_set_datalink(),
1072			pcap_lib_version(), pcap_datalink_val_to_name(),
1073			pcap_datalink_name_to_val(), new error returns.
1074
1075Tuesday, February 25, 2003. fenner@research.att.com.  0.7.2 release
1076
1077	Support link types that use 802.2 always, never, and sometimes.
1078	Don't decrease the size of the BPF buffer from the default.
1079	Support frame relay.
1080	Handle 32-bit timestamps in DLPI, and pass the right buffer size.
1081	Handle Linux systems with modern kernel but without
1082	 SOL_PACKET in the userland headers.
1083	Linux support for ARPHRD_RAWHDLC.
1084	Handle 32-bit timestamps in snoop.
1085	Support eg (Octane/O2xxx/O3xxx Gigabit) devices.
1086	Add new reserved DLT types.
1087
1088Monday October 23, 2001. mcr@sandelman.ottawa.on.ca. Summary for 0.7 release
1089
1090	Added pcap_findalldevs() call to get list of interfaces in a MI way.
1091
1092	pcap_stats() has been documented as to what its counters mean on
1093	each platform.
1094
1095Tuesday January 9, 2001. guy@alum.mit.edu. Summary for 0.6 release
1096
1097	New Linux libpcap implementation, which, in 2.2 and later
1098	kernels, uses PF_PACKET sockets and supports kernel packet
1099	filtering (if compiled into the kernel), and supports the "any"
1100	device for capturing on all interfaces.  Cleans up promiscuous
1101	mode better on pre-2.2 kernels, and has various other fixes
1102	(handles 2.4 ARPHRD_IEEE802_TR, handles ISDN devices better,
1103	doesn't show duplicate packets on loopback interface, etc.).
1104
1105	Fixed HP-UX libpcap implementation to correctly get the PPA for
1106	an interface, to allow interfaces to be opened by interface name.
1107
1108	libpcap savefiles have system-independent link-layer type values
1109	in the header, rather than sometimes platform-dependent DLT_
1110	values, to make it easier to exchange capture files between
1111	different OSes.
1112
1113	Non-standard capture files produced by some Linux tcpdumps, e.g.
1114	the one from Red Hat Linux 6.2 and later, can now be read.
1115
1116	Updated autoconf stock files.
1117
1118	Filter expressions can filter on VLAN IDs and various OSI
1119	protocols, and work on Token Ring (with non-source-routed
1120	packets).
1121
1122	"pcap_open_dead()" added to allow compiling filter expressions
1123	to pcap code without opening a capture device or capture file.
1124
1125	Header files fixed to allow use in C++ programs.
1126
1127	Removed dependency on native headers for packet layout.
1128	Removed Linux specific headers that were shipped.
1129
1130	Security fixes: Strcpy replaced with strlcpy, sprintf replaced
1131	with snprintf.
1132
1133	Fixed bug that could cause subsequent "pcap_compile()"s to fail
1134	erroneously after one compile failed.
1135
1136	Assorted other bug fixes.
1137
1138	README.aix and README.linux files added to describe
1139	platform-specific issues.
1140
1141	"getifaddrs()" rather than SIOCGIFCONF used, if available.
1142
1143v0.5 Sat Jun 10 11:09:15 PDT 2000
1144
1145itojun@iijlab.net
1146- Brought in KAME IPv6/IPsec bpf compiler.
1147- Fixes for NetBSD.
1148- Support added for OpenBSD DLT_LOOP and BSD/OS DLT_C_HDLC (Cisco HDLC),
1149  and changes to work around different BSDs having different DLT_ types
1150  with the same numeric value.
1151
1152Assar Westerlund  <assar@sics.se>
1153- Building outside the source code tree fixed.
1154- Changed to write out time stamps with 32-bit seconds and microseconds
1155  fields, regardless of whether those fields are 32 bits or 64 bits in
1156  the OS's native "struct timeval".
1157- Changed "pcap_lookupdev()" to dynamically grow the buffer into which
1158  the list of interfaces is read as necessary in order to hold the
1159  entire list.
1160
1161Greg Troxel <gdt@ir.bbn.com>
1162- Added a new "pcap_compile_nopcap()", which lets you compile a filter
1163  expression into a BPF program without having an open live capture or
1164  capture file.
1165
1166v0.4 Sat Jul 25 12:40:09 PDT 1998
1167
1168- Fix endian problem with DLT_NULL devices. From FreeBSD via Bill
1169  Fenner (fenner@parc.xerox.com)
1170
1171- Fix alignment problem with FDDI under DLPI. This was causing core
1172  dumps under Solaris.
1173
1174- Added configure options to disable flex and bison. Resulted from a
1175  bug report by barnett@grymoire.crd.ge.com (Bruce Barnett). Also added
1176  options to disable gcc and to force a particular packet capture type.
1177
1178- Added support for Fore ATM interfaces (qaa and fa) under IRIX. Thanks
1179  to John Hawkinson (jhawk@mit.edu)
1180
1181- Change Linux PPP and SLIP to use DLT_RAW since the kernel does not
1182  supply any "link layer" data.
1183
1184- Change Linux to use SIOCGIFHWADDR ioctl to determine link layer type.
1185  Thanks to Thomas Sailer (sailer@ife.ee.ethz.ch)
1186
1187- Change IRIX PPP to use DLT_RAW since the kernel does not supply any
1188  "link layer" data.
1189
1190- Modified to support the new BSD/OS 2.1 PPP and SLIP link layer header
1191  formats.
1192
1193- Added some new SGI snoop interface types. Thanks to Steve Alexander
1194  (sca@refugee.engr.sgi.com)
1195
1196- Fixes for HP-UX 10.20 (which is similar to HP-UX 9). Thanks to
1197  Richard Allen (ra@hp.is) and Steinar Haug (sthaug@nethelp.no)
1198
1199- Fddi supports broadcast as reported by Jeff Macdonald
1200  (jeff@iacnet.com). Also correct ieee802 and arcnet.
1201
1202- Determine Linux pcap buffer size at run time or else it might not be
1203  big enough for some interface types (e.g. FDDI). Thanks to Jes
1204  Sorensen (Jes.Sorensen@cern.ch)
1205
1206- Fix some linux alignment problems.
1207
1208- Document promisc argument to pcap_open_live(). Reported by Ian Marsh
1209  (ianm@sics.se)
1210
1211- Support Metricom radio packets under Linux. Thanks to Kevin Lai
1212  (laik@gunpowder.stanford.edu)
1213
1214- Bind to interface name under Linux to avoid packets from multiple
1215  interfaces on multi-homed hosts. Thanks to Kevin Lai
1216  (laik@gunpowder.stanford.edu)
1217
1218- Change L_SET to SEEK_SET for HP-UX. Thanks to Roland Roberts
1219  (rroberts@muller.com)
1220
1221- Fixed an uninitialized memory reference found by Kent Vander Velden
1222  (graphix@iastate.edu)
1223
1224- Fixed lex pattern for IDs to allow leading digits. As reported by
1225  Theo de Raadt (deraadt@cvs.openbsd.org)
1226
1227- Fixed Linux include file problems when using GNU libc.
1228
1229- Ifdef ARPHRD_FDDI since not all versions of the Linux kernel have it.
1230  Reported reported by Eric Jacksch (jacksch@tenebris.ca)
1231
1232- Fixed bug in pcap_dispatch() that kept it from returning on packet
1233  timeouts.
1234
1235- Changed ISLOOPBACK() macro when IFF_LOOPBACK isn't available to check
1236  for "lo" followed by an eos or digit (newer versions of Linux
1237  apparently call the loopback "lo" instead of "lo0").
1238
1239- Fixed Linux networking include files to use ints instead of longs to
1240  avoid problems with 64 bit longs on the alpha. Thanks to Cristian
1241  Gafton (gafton@redhat.com)
1242
1243v0.3 Sat Nov 30 20:56:27 PST 1996
1244
1245- Added Linux support.
1246
1247- Fixed savefile bugs.
1248
1249- Solaris x86 fix from Tim Rylance (t.rylance@elsevier.nl)
1250
1251- Add support for bpf kernel port filters.
1252
1253- Remove duplicate atalk protocol table entry. Thanks to Christian
1254  Hopps (chopps@water.emich.edu)
1255
1256- Fixed pcap_lookupdev() to ignore nonexistent devices. This was
1257  reported to happen under BSD/OS by David Vincenzetti
1258  (vince@cryptonet.it)
1259
1260- Avoid solaris compiler warnings. Thanks to Bruce Barnett
1261  (barnett@grymoire.crd.ge.com)
1262
1263v0.2.1 Sun Jul 14 03:02:26 PDT 1996
1264
1265- Fixes for HP-UX 10. Thanks in part to Thomas Wolfram
1266  (wolf@prz.tu-berlin.de) and Rick Jones (raj@hpisrdq.cup.hp.com)
1267
1268- Added support for SINIX. Thanks to Andrej Borsenkow
1269  (borsenkow.msk@sni.de)
1270
1271- Fixes for AIX (although this system is not yet supported). Thanks to
1272  John Hawkinson (jhawk@mit.edu)
1273
1274- Use autoconf's idea of the top level directory in install targets.
1275  Thanks to John Hawkinson.
1276
1277- Add missing autoconf packet capture result message. Thanks to Bill
1278  Fenner (fenner@parc.xerox.com)
1279
1280- Fixed padding problems in the pf module.
1281
1282- Fixed some more alignment problems on the alpha.
1283
1284- Added explicit netmask support. Thanks to Steve Nuchia
1285  (steve@research.oknet.com)
1286
1287- Fixed to handle raw ip addresses such as 0.0.0.1 without "left
1288  justifing"
1289
1290- Add "sca" keyword (for DEC cluster services) as suggested by Terry
1291  Kennedy (terry@spcvxa.spc.edu)
1292
1293- Add "atalk" keyword as suggested by John Hawkinson.
1294
1295- Add "igrp" keyword.
1296
1297- Fixed HID definition in grammar.y to be a string, not a value.
1298
1299- Use $CC when checking gcc version. Thanks to Carl Lindberg
1300  (carl_lindberg@blacksmith.com)
1301
1302- Removed obsolete reference to pcap_immediate() from the man page.
1303  Michael Stolarchuk (mts@terminator.rs.itd.umich.edu)
1304
1305- DLT_NULL has a 4 byte family header. Thanks to Jeffrey Honig
1306  (jch@bsdi.com)
1307
1308v0.2 Sun Jun 23 02:28:42 PDT 1996
1309
1310- Add support for HP-UX. Resulted from code contributed by Tom Murray
1311  (tmurray@hpindck.cup.hp.com) and Philippe-Andri Prindeville
1312  (philipp@res.enst.fr)
1313
1314- Update INSTALL with a reminder to install include files. Thanks to
1315  Mark Andrews (mandrews@aw.sgi.com)
1316
1317- Fix bpf compiler alignment bug on the alpha.
1318
1319- Use autoconf to detect architectures that can't handle misaligned
1320  accesses.
1321
1322- Added loopback support for snoop. Resulted from report Steve
1323  Alexander (sca@engr.sgi.com)
1324
1325v0.1 Fri Apr 28 18:11:03 PDT 1995
1326
1327- Fixed compiler and optimizer bugs.  The BPF filter engine uses unsigned
1328  comparison operators, while the code generator and optimizer assumed
1329  signed semantics in several places.  Thanks to Charlie Slater
1330  (cslater@imatek.com) for pointing this out.
1331
1332- Removed FDDI ifdef's, they aren't really needed. Resulted from report
1333  by Gary Veum (veum@boa.gsfc.nasa.gov).
1334
1335- Add pcap-null.c which allows offline use of libpcap on systems that
1336  don't support live package capture. This feature resulting from a
1337  request from Jan van Oorschot (j.p.m.voorschot@et.tudelft.nl).
1338
1339- Make bpf_compile() reentrant. Fix thanks to Pascal Hennequin
1340  (Pascal.Hennequin@hugo.int-evry.fr).
1341
1342- Port to GNU autoconf.
1343
1344- Fix pcap-dlpi.c to work with isdn. Resulted from report by Flemming
1345  Johansen (fsj@csd.cri.dk).
1346
1347- Handle multi-digit interface unit numbers (aka ppa's) under dlpi.
1348  Resulted from report by Daniel Ehrlich (ehrlich@cse.psu.edu).
1349
1350- Fix pcap-dlpi.c to work in non-promiscuous mode. Resulted from report
1351  by Jeff Murphy (jcmurphy@acsu.buffalo.edu).
1352
1353- Add support for "long jumps". Thanks to Jeffrey Mogul
1354  (mogul@pa.dec.com).
1355
1356- Fix minor problems when compiling with BDEBUG as noticed by Scott
1357  Bertilson (scott@unet.umn.edu).
1358
1359- Declare sys_errlist "const char *const" to avoid problems under
1360  FreeBSD. Resulted from report by jher@eden.com.
1361
1362v0.0.6 Fri Apr 28 04:07:13 PDT 1995
1363
1364- Add missing variable declaration missing from 0.0.6
1365
1366v0.0.5 Fri Apr 28 00:22:21 PDT 1995
1367
1368- Workaround for problems when pcap_read() returns 0 due to the timeout
1369  expiring.
1370
1371v0.0.4 Thu Apr 20 20:41:48 PDT 1995
1372
1373- Change configuration to not use gcc v2 flags with gcc v1.
1374
1375- Fixed a bug in pcap_next(); if pcap_dispatch() returns 0, pcap_next()
1376  should also return 0. Thanks to Richard Stevens (rstevens@noao.edu).
1377
1378- Fixed configure to test for snoop before dlpi to avoid problems under
1379  IRIX 5. Thanks to J. Eric Townsend (jet@abulafia.genmagic.com).
1380
1381- Hack around deficiency in Ultrix's make.
1382
1383- Fix two bugs related to the Solaris pre-5.3.2 bufmod bug; handle
1384  savefiles that have more than snapshot bytes of data in them (so we
1385  can read old savefiles) and avoid writing such files.
1386
1387- Added checkioctl which is used with gcc to check that the
1388  "fixincludes" script has been run.
1389
1390v0.0.3 Tue Oct 18 18:13:46 PDT 1994
1391
1392- Fixed configure to test for snoop before dlpi to avoid problems under
1393  IRIX 5. Thanks to J. Eric Townsend (jet@abulafia.genmagic.com).
1394
1395v0.0.2 Wed Oct 12 20:56:37 PDT 1994
1396
1397- Implement timeout in the dlpi pcap_open_live(). Thanks to Richard
1398  Stevens.
1399
1400- Determine pcap link type from dlpi media type. Resulted from report
1401  by Mahesh Jethanandani (mahesh@npix.com).
1402
1403v0.0.1 Fri Jun 24 14:50:57 PDT 1994
1404
1405- Fixed bug in nit_setflags() in pcap-snit.c. The streams ioctl timeout
1406  wasn't being initialized sometimes resulting in an "NIOCSFLAGS:
1407  Invalid argument" error under OSF/1. Reported by Matt Day
1408  (mday@artisoft.com) and Danny Mitzel (dmitzel@whitney.hitc.com).
1409
1410- Turn on FDDI support by default.
1411
1412v0.0 Mon Jun 20 19:20:16 PDT 1994
1413
1414- Initial release.
1415
1416- Fixed bug with greater/less keywords, reported by Mark Andrews
1417  (mandrews@alias.com).
1418
1419- Fix bug where '|' was defined as BPF_AND instead of BPF_OR, reported
1420  by Elan Amir (elan@leeb.cs.berkeley.edu).
1421
1422- Machines with little-endian byte ordering are supported thanks to
1423  Jeff Mogul.
1424
1425- Add hack for version 2.3 savefiles which don't have caplen and len
1426  swapped thanks to Vern Paxson.
1427
1428- Added "&&" and "||" aliases for "and" and "or" thanks to Vern Paxson.
1429
1430- Added length, inbound and outbound keywords.
1431