suricata
source-pcap.h
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1 /* Copyright (C) 2007-2010 Open Information Security Foundation
2  *
3  * You can copy, redistribute or modify this Program under the terms of
4  * the GNU General Public License version 2 as published by the Free
5  * Software Foundation.
6  *
7  * This program is distributed in the hope that it will be useful,
8  * but WITHOUT ANY WARRANTY; without even the implied warranty of
9  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10  * GNU General Public License for more details.
11  *
12  * You should have received a copy of the GNU General Public License
13  * version 2 along with this program; if not, write to the Free Software
14  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
15  * 02110-1301, USA.
16  */
17 
18 /**
19  * \file
20  *
21  * \author Victor Julien <victor@inliniac.net>
22  */
23 
24 #ifndef __SOURCE_PCAP_H__
25 #define __SOURCE_PCAP_H__
26 
27 void TmModuleReceivePcapRegister (void);
28 void TmModuleDecodePcapRegister (void);
29 void PcapTranslateIPToDevice(char *pcap_dev, size_t len);
30 
31 int PcapLiveRegisterDevice(char *);
32 int PcapLiveGetDeviceCount(void);
33 char *PcapLiveGetDevice(int);
34 
35 #define LIBPCAP_SNAPLEN 1518
36 #define LIBPCAP_COPYWAIT 500
37 #define LIBPCAP_PROMISC 1
38 
39 /* per packet Pcap vars */
40 typedef struct PcapPacketVars_
41 {
42  uint32_t tenant_id;
44 
45 /** needs to be able to contain Windows adapter id's, so
46  * must be quite long. */
47 #define PCAP_IFACE_NAME_LENGTH 128
48 
49 typedef struct PcapIfaceConfig_
50 {
52  /* number of threads */
53  int threads;
54  /* socket buffer size */
56  /* snapshot length */
57  int snaplen;
58  /* promiscuous value */
59  int promisc;
60  /* BPF filter */
61  const char *bpf_filter;
63  SC_ATOMIC_DECLARE(unsigned int, ref);
64  void (*DerefFunc)(void *);
66 
67 
68 
69 #endif /* __SOURCE_PCAP_H__ */
70 
#define SC_ATOMIC_DECLARE(type, name)
wrapper to declare an atomic variable including a (spin) lock to protect it.
Definition: util-atomic.h:57
const char * bpf_filter
Definition: source-pcap.h:61
int PcapLiveGetDeviceCount(void)
#define PCAP_IFACE_NAME_LENGTH
Definition: source-pcap.h:47
int PcapLiveRegisterDevice(char *)
ChecksumValidationMode checksum_mode
Definition: source-pcap.h:62
void PcapTranslateIPToDevice(char *pcap_dev, size_t len)
Definition: source-pcap.c:620
char * PcapLiveGetDevice(int)
struct PcapPacketVars_ PcapPacketVars
uint32_t tenant_id
Definition: source-pcap.h:42
void TmModuleReceivePcapRegister(void)
Registration Function for RecievePcap.
Definition: source-pcap.c:111
ChecksumValidationMode
Definition: decode.h:40
struct PcapIfaceConfig_ PcapIfaceConfig
uint8_t len
void TmModuleDecodePcapRegister(void)
Registration Function for DecodePcap.
Definition: source-pcap.c:129