But it doesn't work! I have installed libpcap 0.8.1:
Errors:
go build -i -ldflags "-X github.com/elastic/beats/libbeat/version.buildTime=2019-07-16T10:05:02Z -X github.com/elastic/beats/libbeat/version.commit=07ed6f1cd32d774b4470d55512fe06c57ec589cd"
# github.com/elastic/beats/vendor/github.com/tsg/gopacket/pcap
../vendor/github.com/tsg/gopacket/pcap/pcap.go:609:29: could not determine kind of name for C.PCAP_D_IN
../vendor/github.com/tsg/gopacket/pcap/pcap.go:611:29: could not determine kind of name for C.PCAP_D_INOUT
../vendor/github.com/tsg/gopacket/pcap/pcap.go:610:29: could not determine kind of name for C.PCAP_D_OUT
../vendor/github.com/tsg/gopacket/pcap/pcap.go:296:19: could not determine kind of name for C.PCAP_ERROR_ACTIVATED
../vendor/github.com/tsg/gopacket/pcap/pcap.go:300:19: could not determine kind of name for C.PCAP_ERROR_IFACE_NOT_UP
../vendor/github.com/tsg/gopacket/pcap/pcap.go:298:19: could not determine kind of name for C.PCAP_ERROR_NO_SUCH_DEVICE
../vendor/github.com/tsg/gopacket/pcap/pcap.go:299:19: could not determine kind of name for C.PCAP_ERROR_PERM_DENIED
../vendor/github.com/tsg/gopacket/pcap/pcap.go:297:19: could not determine kind of name for C.PCAP_WARNING_PROMISC_NOTSUP
../vendor/github.com/tsg/gopacket/pcap/pcap.go:659:23: could not determine kind of name for C.pcap_activate
../vendor/github.com/tsg/gopacket/pcap/pcap.go:760:19: could not determine kind of name for C.pcap_can_set_rfmon
../vendor/github.com/tsg/gopacket/pcap/pcap.go:687:10: could not determine kind of name for C.pcap_create
../vendor/github.com/tsg/gopacket/pcap/pcap.go:619:44: could not determine kind of name for C.pcap_direction_t
../vendor/github.com/tsg/gopacket/pcap/pcap.go:405:8: could not determine kind of name for C.pcap_free_datalinks
../vendor/github.com/tsg/gopacket/pcap/pcap.go:501:9: could not determine kind of name for C.pcap_offline_filter
../vendor/github.com/tsg/gopacket/pcap/pcap.go:599:11: could not determine kind of name for C.pcap_sendpacket
../vendor/github.com/tsg/gopacket/pcap/pcap.go:776:15: could not determine kind of name for C.pcap_set_buffer_size
../vendor/github.com/tsg/gopacket/pcap/pcap.go:709:15: could not determine kind of name for C.pcap_set_promisc
../vendor/github.com/tsg/gopacket/pcap/pcap.go:768:15: could not determine kind of name for C.pcap_set_rfmon
../vendor/github.com/tsg/gopacket/pcap/pcap.go:696:15: could not determine kind of name for C.pcap_set_snaplen
../vendor/github.com/tsg/gopacket/pcap/pcap.go:720:15: could not determine kind of name for C.pcap_set_timeout
../vendor/github.com/tsg/gopacket/pcap/pcap.go:619:15: could not determine kind of name for C.pcap_setdirection
../vendor/github.com/tsg/gopacket/pcap/pcap.go:644:31: could not determine kind of name for C.pcap_statustostr
gcc errors for preamble:
../vendor/github.com/tsg/gopacket/pcap/pcap.go: In function 'pcap_set_immediate_mode':
../vendor/github.com/tsg/gopacket/pcap/pcap.go:35: error: 'PCAP_ERROR' undeclared (first use in this function)
../vendor/github.com/tsg/gopacket/pcap/pcap.go:35: error: (Each undeclared identifier is reported only once
../vendor/github.com/tsg/gopacket/pcap/pcap.go:35: error: for each function it appears in.)
../vendor/github.com/tsg/gopacket/pcap/pcap.go: In function 'pcap_tstamp_type_name_to_val':
../vendor/github.com/tsg/gopacket/pcap/pcap.go:47: error: 'PCAP_ERROR' undeclared (first use in this function)
make: *** [packetbeat] Error 2
[root@052ead9c9486 usr]# find / -name "pcap*"
/usr/include/pcap.h
/usr/include/pcap-namedb.h
/usr/include/pcap-bpf.h
/usr/man/man3/pcap.3
/root/libpcap-0.8.1/pcap-linux.c
/root/libpcap-0.8.1/pcap.3
/root/libpcap-0.8.1/packaging/pcap.spec
/root/libpcap-0.8.1/packaging/pcap.spec.in
/root/libpcap-0.8.1/pcap-stdinc.h
/root/libpcap-0.8.1/pcap-win32.c
/root/libpcap-0.8.1/pcap.h
/root/libpcap-0.8.1/pcap-pf.c
/root/libpcap-0.8.1/pcap-bpf.c
/root/libpcap-0.8.1/pcap-dag.c
/root/libpcap-0.8.1/pcap-namedb.h
/root/libpcap-0.8.1/pcap-bpf.h
/root/libpcap-0.8.1/pcap-null.c
/root/libpcap-0.8.1/pcap-pf.h
/root/libpcap-0.8.1/pcap-snoop.c
/root/libpcap-0.8.1/pcap-linux.o
/root/libpcap-0.8.1/pcap-snit.c
/root/libpcap-0.8.1/pcap.c
/root/libpcap-0.8.1/pcap-int.h
/root/libpcap-0.8.1/pcap-enet.c
/root/libpcap-0.8.1/pcap-nit.h
/root/libpcap-0.8.1/pcap-dlpi.c
/root/libpcap-0.8.1/pcap.o
/root/libpcap-0.8.1/pcap-dag.h
/root/libpcap-0.8.1/pcap-nit.c