93 lines
2.3 KiB
C
93 lines
2.3 KiB
C
/*
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* decpcap.h
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*
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* Copyright (c) 2004-2006,2011 Arnout Engelen
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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*USA.
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*
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*/
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#ifndef __DECPCAP_H
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#define __DECPCAP_H
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#include <stdlib.h>
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#include <stdio.h>
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#include <pcap.h>
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#define DP_ERRBUF_SIZE PCAP_ERRBUF_SIZE
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/* definitions */
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enum dp_packet_type {
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dp_packet_ethernet,
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dp_packet_ppp,
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dp_packet_sll,
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dp_packet_ip,
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dp_packet_ip6,
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dp_packet_tcp,
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dp_packet_udp,
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dp_n_packet_types
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};
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/*enum dp_link_type {
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dp_link_ethernet,
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dp_link_ppp,
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dp_n_link_types
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};*/
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/*struct dp_header {
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* pcap
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};*/
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typedef struct pcap_pkthdr dp_header;
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typedef int (*dp_callback)(u_char *, const dp_header *, const u_char *);
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struct dp_handle {
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pcap_t *pcap_handle;
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dp_callback callback[dp_n_packet_types];
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int linktype;
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u_char *userdata;
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int userdata_size;
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};
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/* functions to set up a handle (which is basically just a pcap handle) */
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struct dp_handle *dp_open_live(const char *device, int snaplen, int promisc,
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int to_ms, char *errbuf);
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struct dp_handle *dp_open_offline(char *fname, char *ebuf);
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/* functions to add callbacks */
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void dp_addcb(struct dp_handle *handle, enum dp_packet_type type,
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dp_callback callback);
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/* functions to parse payloads */
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void dp_parse(enum dp_packet_type type, void *packet);
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/* functions to start monitoring */
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int dp_dispatch(struct dp_handle *handler, int count, u_char *user, int size);
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/* functions that simply call libpcap */
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int dp_datalink(struct dp_handle *handle);
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int dp_setnonblock(struct dp_handle *handle, int i, char *errbuf);
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char *dp_geterr(struct dp_handle *handle);
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#endif
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