freebsd-dev/contrib/libpcap
Cy Schubert 31bfaf17a7 MFV r355890:
Fix libpcap issue #893: check for invalid IPv4 addresses.

This fixes errors such as:

tcpdump -i lagg0 net 999.999.999.999

This was originally discovered on a Red Hat 7.7 server and verified
to also be a bug on FreeBSD.

Obtained from:	https://github.com/the-tcpdump-group/libpcap/commit/ \
		07070918d5e81a515315b395f334e52589fe0fb
Fixed by:	https://github.com/guyharris
MFC after:	2 weeks
2019-12-21 21:05:53 +00:00
..
ChmodBPF MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
cmake MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
doc MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
lbl MFV r313676: libpcap 1.8.1 2017-02-13 08:23:39 +00:00
missing MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
msdos MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
rpcapd MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
testprogs MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
tests MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
Win32/Prj MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
aclocal.m4 MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
arcnet.h
atmuni31.h
bpf_dump.c MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
bpf_filter.c MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
bpf_image.c MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
CHANGES MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
chmod_bpf MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
cmake_uninstall.cmake.in MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
cmakeconfig.h.in MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
CMakeLists.txt MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
config.guess MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
config.h.in MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
config.sub MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
configure MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
configure.ac MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
CONTRIBUTING.md MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
CREDITS MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
diag-control.h MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
dlpisubs.c MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
dlpisubs.h
etherent.c MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
ethertype.h MFV r313676: libpcap 1.8.1 2017-02-13 08:23:39 +00:00
extract.h MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
fad-getad.c MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
fad-gifc.c MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
fad-glifc.c MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
fmtutils.c MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
fmtutils.h MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
ftmacros.h MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
gencode.c MFV r355890: 2019-12-21 21:05:53 +00:00
gencode.h MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
grammar.y MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
ieee80211.h MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
install-sh MFV r313676: libpcap 1.8.1 2017-02-13 08:23:39 +00:00
INSTALL.md MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
libpcap.pc.in MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
LICENSE MFV r313676: libpcap 1.8.1 2017-02-13 08:23:39 +00:00
llc.h
Makefile-devel-adds MFV r313676: libpcap 1.8.1 2017-02-13 08:23:39 +00:00
Makefile.in MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
mkdep MFV r313676: libpcap 1.8.1 2017-02-13 08:23:39 +00:00
nametoaddr.c MFV r355890: 2019-12-21 21:05:53 +00:00
nametoaddr.h MFV r313676: libpcap 1.8.1 2017-02-13 08:23:39 +00:00
nlpid.h
nomkdep MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
optimize.c MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
optimize.h MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
org.tcpdump.chmod_bpf.plist MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
pcap_activate.3pcap MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_breakloop.3pcap MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_can_set_rfmon.3pcap MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_close.3pcap MFV r313676: libpcap 1.8.1 2017-02-13 08:23:39 +00:00
pcap_compile.3pcap.in MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_create.3pcap MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_datalink_name_to_val.3pcap MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_datalink_val_to_name.3pcap MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_datalink.3pcap.in MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_dump_close.3pcap MFV r313676: libpcap 1.8.1 2017-02-13 08:23:39 +00:00
pcap_dump_file.3pcap MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_dump_flush.3pcap MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_dump_ftell.3pcap MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_dump_open.3pcap.in MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_dump.3pcap MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_file.3pcap MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_fileno.3pcap MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_findalldevs.3pcap MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_freecode.3pcap MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_get_required_select_timeout.3pcap MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_get_selectable_fd.3pcap MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_get_tstamp_precision.3pcap.in MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_geterr.3pcap MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_inject.3pcap MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_is_swapped.3pcap MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_lib_version.3pcap MFV r313676: libpcap 1.8.1 2017-02-13 08:23:39 +00:00
pcap_list_datalinks.3pcap.in MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_list_tstamp_types.3pcap.in MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_lookupdev.3pcap MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_lookupnet.3pcap MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_loop.3pcap MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_major_version.3pcap MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_next_ex.3pcap MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_offline_filter.3pcap MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_open_dead.3pcap.in MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_open_live.3pcap MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_open_offline.3pcap.in MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_set_buffer_size.3pcap MFV r313676: libpcap 1.8.1 2017-02-13 08:23:39 +00:00
pcap_set_datalink.3pcap MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_set_immediate_mode.3pcap.in MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_set_promisc.3pcap MFV r313676: libpcap 1.8.1 2017-02-13 08:23:39 +00:00
pcap_set_protocol_linux.3pcap MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_set_rfmon.3pcap MFV r313676: libpcap 1.8.1 2017-02-13 08:23:39 +00:00
pcap_set_snaplen.3pcap MFV r313676: libpcap 1.8.1 2017-02-13 08:23:39 +00:00
pcap_set_timeout.3pcap MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_set_tstamp_precision.3pcap.in MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_set_tstamp_type.3pcap.in MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_setdirection.3pcap MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_setfilter.3pcap MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_setnonblock.3pcap MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_snapshot.3pcap MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_stats.3pcap MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_statustostr.3pcap MFV r313676: libpcap 1.8.1 2017-02-13 08:23:39 +00:00
pcap_strerror.3pcap MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_tstamp_type_name_to_val.3pcap MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap_tstamp_type_val_to_name.3pcap MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap-bpf.c MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap-bpf.h MFV r313676: libpcap 1.8.1 2017-02-13 08:23:39 +00:00
pcap-bt-linux.c MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap-bt-linux.h MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
pcap-bt-monitor-linux.c MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap-bt-monitor-linux.h MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
pcap-common.c MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap-common.h MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap-config.1 MFV r313676: libpcap 1.8.1 2017-02-13 08:23:39 +00:00
pcap-config.in MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
pcap-dag.c MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap-dag.h MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
pcap-dbus.c MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
pcap-dbus.h MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
pcap-dll.rc MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
pcap-dlpi.c MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap-dos.c MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap-dos.h MFV r313676: libpcap 1.8.1 2017-02-13 08:23:39 +00:00
pcap-enet.c MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
pcap-filter.manmisc.in MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap-int.h MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap-libdlpi.c MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap-linktype.manmisc.in MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap-linux.c MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap-namedb.h
pcap-netfilter-linux.c MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap-netfilter-linux.h MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
pcap-netmap.c MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap-netmap.h MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
pcap-new.c MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap-nit.c MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
pcap-npf.c MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap-null.c MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap-pf.c MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
pcap-rdmasniff.c MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
pcap-rdmasniff.h MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
pcap-rpcap-int.h MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
pcap-rpcap.c MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap-rpcap.h MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap-savefile.manfile.in MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap-septel.c MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap-septel.h MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
pcap-sita.c MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap-sita.h
pcap-sita.html MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap-snf.c MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap-snf.h MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
pcap-snit.c MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
pcap-snoop.c MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
pcap-tc.c MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap-tc.h MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
pcap-tstamp.manmisc.in MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap-types.h MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
pcap-usb-linux.c MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap-usb-linux.h MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
pcap.3pcap.in MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap.c MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
pcap.h
portability.h MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
ppp.h
README.md MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
rpcap-protocol.c MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
rpcap-protocol.h MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
savefile.c MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
scanner.l MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
sf-pcap.c MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
sf-pcap.h MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
sf-pcapng.c MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
sf-pcapng.h MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
sockutils.c MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
sockutils.h MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
sunatmpos.h
TODO MFV r313676: libpcap 1.8.1 2017-02-13 08:23:39 +00:00
varattrs.h MFV r333789: libpcap 1.9.0 (pre-release) 2018-05-28 08:12:18 +00:00
VERSION MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00

To report a security issue please send an e-mail to security@tcpdump.org.

To report bugs and other problems, contribute patches, request a feature, provide generic feedback etc please see the file CONTRIBUTING in the libpcap source tree root.

The directory doc/ has README files about specific operating systems and options.

LIBPCAP 1.x.y Now maintained by "The Tcpdump Group" https://www.tcpdump.org

Anonymous Git is available via: https://github.com/the-tcpdump-group/libpcap.git

formerly from Lawrence Berkeley National Laboratory Network Research Group libpcap@ee.lbl.gov ftp://ftp.ee.lbl.gov/old/libpcap-0.4a7.tar.Z

This directory contains source code for libpcap, a system-independent interface for user-level packet capture. libpcap provides a portable framework for low-level network monitoring. Applications include network statistics collection, security monitoring, network debugging, etc. Since almost every system vendor provides a different interface for packet capture, and since we've developed several tools that require this functionality, we've created this system-independent API to ease in porting and to alleviate the need for several system-dependent packet capture modules in each application.

For some platforms there are README.{system} files that discuss issues with the OS's interface for packet capture on those platforms, such as how to enable support for that interface in the OS, if it's not built in by default.

The libpcap interface supports a filtering mechanism based on the architecture in the BSD packet filter. BPF is described in the 1993 Winter Usenix paper ``The BSD Packet Filter: A New Architecture for User-level Packet Capture''. A compressed PostScript version can be found at

ftp://ftp.ee.lbl.gov/papers/bpf-usenix93.ps.Z

or

https://www.tcpdump.org/papers/bpf-usenix93.ps.Z

and a gzipped version can be found at

https://www.tcpdump.org/papers/bpf-usenix93.ps.gz

A PDF version can be found at

https://www.tcpdump.org/papers/bpf-usenix93.pdf

Although most packet capture interfaces support in-kernel filtering, libpcap utilizes in-kernel filtering only for the BPF interface. On systems that don't have BPF, all packets are read into user-space and the BPF filters are evaluated in the libpcap library, incurring added overhead (especially, for selective filters). Ideally, libpcap would translate BPF filters into a filter program that is compatible with the underlying kernel subsystem, but this is not yet implemented.

BPF is standard in 4.4BSD, BSD/OS, NetBSD, FreeBSD, OpenBSD, DragonFly BSD, and macOS; an older, modified and undocumented version is standard in AIX. {DEC OSF/1, Digital UNIX, Tru64 UNIX} uses the packetfilter interface but has been extended to accept BPF filters (which libpcap utilizes). Also, you can add BPF filter support to Ultrix using the kernel source and/or object patches available in:

https://www.tcpdump.org/other/bpfext42.tar.Z

Linux has a number of BPF based systems, and libpcap does not support any of the eBPF mechanisms as yet, although it supports many of the memory mapped receive mechanisms. See the README.linux file for more information.

Note to Linux distributions and *BSD systems that include libpcap:

There's now a rule to make a shared library, which should work on Linux and *BSD, among other platforms.

It sets the soname of the library to "libpcap.so.1"; this is what it should be, NOT libpcap.so.1.x or libpcap.so.1.x.y or something such as that.

We've been maintaining binary compatibility between libpcap releases for quite a while; there's no reason to tie a binary linked with libpcap to a particular release of libpcap.

Current versions can be found at https://www.tcpdump.org.

  • The TCPdump group