Sniffer implementation for capturing 802.15.4 packets on a given channel. More...
#include <errno.h>#include <sys/stat.h>#include <sys/types.h>#include <assert.h>#include <fcntl.h>#include <stdbool.h>#include <stdint.h>#include <stdio.h>#include <stdlib.h>#include <string.h>#include <time.h>#include <unistd.h>#include "ca821x-posix/ca821x-posix-evbme.h"#include "ca821x-posix/ca821x-posix.h"#include "evbme_messages.h"
Include dependency graph for sniffer.c:
Classes | |
| struct | PCPS_DATA_indication_pset_8211 |
| parameter structures which have been duplicated from mac_messages.h to be able to handle all devices More... | |
| struct | PCPS_DATA_indication_pset_8212 |
| struct | pcap_hdr_s |
| Pcap file header struct as https://wiki.wireshark.org/Development/LibpcapFileFormat. More... | |
| struct | pcaprec_hdr_s |
| Pcap packet header struct as https://wiki.wireshark.org/Development/LibpcapFileFormat. More... | |
Macros | |
| #define | DEFAULT_PIPE "/tmp/cascoda_" |
| #define | LINKTYPE_ETHERNET 1 |
| Pcap link types, see https://www.tcpdump.org/linktypes.html. More... | |
| #define | LINKTYPE_IEEE802_15_4_WITHFCS 195 |
| #define | LINKTYPE_IEEE802_15_4_TAP 283 |
| #define | MAX_HEADER_LEN 512 |
| headers for encapsulating IEEE802.15.4 frames for pcap. More... | |
| #define | HEADER_LEN_ETH 14; |
| #define | HEADER_LEN_TAP 28; |
| #define | HEADER_POSITION_RSSI 16 |
| #define | HEADER_POSITION_LQI 24 |
Typedefs | |
| typedef enum ca_device_type | ca_device_type |
| device type More... | |
| typedef struct pcap_hdr_s | pcap_hdr_t |
| Pcap file header struct as https://wiki.wireshark.org/Development/LibpcapFileFormat. More... | |
| typedef struct pcaprec_hdr_s | pcaprec_hdr_t |
| Pcap packet header struct as https://wiki.wireshark.org/Development/LibpcapFileFormat. More... | |
Enumerations | |
| enum | ca_device_type { DEV_UNKNOWN = 0 , DEV_CA8210 = 1 , DEV_CA8211 = 2 , DEV_CA8212 = 3 } |
| device type More... | |
| enum | { OUT_MODE_HEX , OUT_MODE_PCAP } |
| Output mode for formatting printed data. More... | |
Functions | |
| ca_static_assert (sizeof(pcap_hdr_t)==24) | |
| ca_static_assert (sizeof(pcaprec_hdr_t)==16) | |
| int | main (int argc, char *argv[]) |
Variables | |
| ca_device_type | DeviceType = DEV_UNKNOWN |
| uint32_t | link_type = LINKTYPE_IEEE802_15_4_TAP |
| uint8_t | ethernet_header [] |
| headers for encapsulating IEEE802.15.4 frames for pcap. More... | |
| uint8_t | tap_header [] |
| enum { ... } | out_mode = OUT_MODE_HEX |
| Output mode for formatting printed data. More... | |
| struct ca821x_dev | sDeviceRef |
| static cascoda device reference More... | |
| struct timespec | start |
| FILE * | output |
| bool | debugMode = false |
| Enable logging of extra info to stderr in pcap mode. More... | |
| uint8_t | channel = 0 |
| Channel we are sniffing on. More... | |
| char | default_pipe [30] |
| Static storage for default pipe name. More... | |
| char * | dPipeName = NULL |
| Pointer to dynamic pipe name. More... | |
| uint32_t | time_till_new_capture = 0 |
| If this is nonzero, then wireshark will be used in ring buffer mode, and a new capture will be started once every "time_till_new_capture" seconds. More... | |
Detailed Description
Sniffer implementation for capturing 802.15.4 packets on a given channel.
Macro Definition Documentation
◆ DEFAULT_PIPE
| #define DEFAULT_PIPE "/tmp/cascoda_" |
◆ HEADER_LEN_ETH
| #define HEADER_LEN_ETH 14; |
◆ HEADER_LEN_TAP
| #define HEADER_LEN_TAP 28; |
◆ HEADER_POSITION_LQI
| #define HEADER_POSITION_LQI 24 |
◆ HEADER_POSITION_RSSI
| #define HEADER_POSITION_RSSI 16 |
◆ LINKTYPE_ETHERNET
| #define LINKTYPE_ETHERNET 1 |
Pcap link types, see https://www.tcpdump.org/linktypes.html.
◆ LINKTYPE_IEEE802_15_4_TAP
| #define LINKTYPE_IEEE802_15_4_TAP 283 |
◆ LINKTYPE_IEEE802_15_4_WITHFCS
| #define LINKTYPE_IEEE802_15_4_WITHFCS 195 |
◆ MAX_HEADER_LEN
| #define MAX_HEADER_LEN 512 |
headers for encapsulating IEEE802.15.4 frames for pcap.
Typedef Documentation
◆ ca_device_type
| typedef enum ca_device_type ca_device_type |
device type
◆ pcap_hdr_t
| typedef struct pcap_hdr_s pcap_hdr_t |
Pcap file header struct as https://wiki.wireshark.org/Development/LibpcapFileFormat.
◆ pcaprec_hdr_t
| typedef struct pcaprec_hdr_s pcaprec_hdr_t |
Pcap packet header struct as https://wiki.wireshark.org/Development/LibpcapFileFormat.
Enumeration Type Documentation
◆ anonymous enum
| anonymous enum |
◆ ca_device_type
| enum ca_device_type |
Function Documentation
◆ ca_static_assert() [1/2]
| ca_static_assert | ( | sizeof(pcap_hdr_t) | = =24 | ) |
◆ ca_static_assert() [2/2]
| ca_static_assert | ( | sizeof(pcaprec_hdr_t) | = =16 | ) |
◆ main()
| int main | ( | int | argc, |
| char * | argv[] | ||
| ) |
Variable Documentation
◆ channel
| uint8_t channel = 0 |
Channel we are sniffing on.
◆ debugMode
| bool debugMode = false |
Enable logging of extra info to stderr in pcap mode.
◆ default_pipe
| char default_pipe[30] |
Static storage for default pipe name.
◆ DeviceType
| ca_device_type DeviceType = DEV_UNKNOWN |
◆ dPipeName
| char* dPipeName = NULL |
Pointer to dynamic pipe name.
◆ ethernet_header
| uint8_t ethernet_header[] |
Initial value:
= {0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0x22,
0x22,
0x22,
0x22,
0x22,
0x22,
0x80,
0x9a}
headers for encapsulating IEEE802.15.4 frames for pcap.
for TAP header doc see: https://github.com/jkcko/ieee802.15.4-tap/blob/master/IEEE%20802.15.4%20TAP%20Link%20Type%20Specification.pdf
◆ link_type
| uint32_t link_type = LINKTYPE_IEEE802_15_4_TAP |
◆
| enum { ... } out_mode |
Output mode for formatting printed data.
◆ output
| FILE* output |
◆ sDeviceRef
| struct ca821x_dev sDeviceRef |
static cascoda device reference
◆ start
| struct timespec start |
◆ tap_header
| uint8_t tap_header[] |
Initial value:
= {0x00,
0x00,
0x1C,
0x00,
0x00,
0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00,
0x01,
0x00, 0x04, 0x00,
0x00,
0x00, 0x00, 0x00,
0x0A,
0x00, 0x01, 0x00,
0x00,
0x00, 0x00, 0x00}
◆ time_till_new_capture
| uint32_t time_till_new_capture = 0 |
If this is nonzero, then wireshark will be used in ring buffer mode, and a new capture will be started once every "time_till_new_capture" seconds.
