Package >> nw_pcap_pkg

Functions
t_slv_arr	f_pcap_read_pkt ( name: in string pkt_no: in natural pkt_len: in natural bigendian: in boolean )	[ impure ]
integer	f_pcap_get_pkt_cnt ( name: in string )	[ impure ]
	Get PCAP file packet count.
natural	f_pcap_get_pkt_len ( name: in string , pkt_no: in natural )	[ impure ]
	Get length of network packet.
t_slv_arr	f_pcap_get_pkt ( name: in string pkt_no: in natural pkt_len: in natural )	[ impure ]
	Extract packet from file.

Member Function Documentation

◆ f_pcap_get_pkt_cnt()

integer f_pcap_get_pkt_cnt	(		name in string
	)		impure

Function

Get PCAP file packet count.

Parameters

name	PCAP file name

Get the number of network packets in PCAP file. Supports both PCAP and PCAPNG formats (only the first section in the latter format).

Example use

v_cnt := f_pcap_get_pkt_cnt("../nw_pcap/tb/ipv6-smtp.pcapng"); -- v_cnt is now 17 (17 packets in this file)

v_cnt := f_pcap_get_pkt_cnt("../nw_pcap/tb/PPTP_negotiation.pcap"); -- v_cnt is now 28 (28 packets in this file)

Function

Get length of network packet.

Parameters

name	PCAP file name
pkt_no	Index of network packet in file (0 is first)

Get the length of a specific network packet in a PCAP file.

Example use

v_len := f_pcap_get_pkt_len("../nw_pcap/tb/ipv6-smtp.pcapng", 3); -- v_len is now 125 (length of packet #3)

v_len := f_pcap_get_pkt_cnt("../nw_pcap/tb/PPTP_negotiation.pcap", 26); -- v_len is now 138 (length of packet #26)

Function

Extract packet from file.

Parameters

name	PCAP file name
pkt_no	Index of network packet in file (0 is first)
pkt_len	Number of bytes to read

Get a specific packet from file.

Example use

v_len := f_pcap_get_pkt_len("../nw_pcap/tb/ipv6-smtp.pcapng", 3); -- v_len is now 125 (length of packet #3)

v_data(0 to v_len - 1) := f_pcap_get_pkt("../nw_pcap/tb/ipv6-smtp.pcapng", 3, v_len);

The documentation for this class was generated from the following file: