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lorcon_packet.h
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lorcon_packet.h
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/*
This file is part of LORCON
LORCON is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
LORCON is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with LORCON; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Copyright (c) dragorn and Joshua Wright
*/
#ifndef __LORCON_PACKET_H__
#define __LORCON_PACKET_H__
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <stdint.h>
struct lorcon;
struct pcap_pkthdr;
struct lcpa_metapack;
/* Radio modulation flags for this packet (drivers which support setting
* per-packet modulation controls */
enum lorcon_mod_flags {
LORCON_MOD_DEFAULT=0,
LORCON_MOD_FHSS,
LORCON_MOD_DSSS,
LORCON_MOD_OFDM,
LORCON_MOD_TURBO,
LORCON_MOD_MIMO,
LORCON_MOD_MIMOGF
};
#define LORCON_DOT11_DIR_FROMDS 1
#define LORCON_DOT11_DIR_TODS 2
#define LORCON_DOT11_DIR_INTRADS 3
#define LORCON_DOT11_DIR_ADHOCDS 4
/* Channel flags for radiotap */
#define LORCON_RTAP_CHAN_TURBO 0x0010 /* Turbo channel */
#define LORCON_RTAP_CHAN_CCK 0x0020 /* CCK channel */
#define LORCON_RTAP_CHAN_OFDM 0x0040 /* OFDM channel */
#define LORCON_RTAP_CHAN_2GHZ 0x0080 /* 2 GHz spectrum channel. */
#define LORCON_RTAP_CHAN_5GHZ 0x0100 /* 5 GHz spectrum channel */
#define LORCON_RTAP_CHAN_PASSIVE 0x0200 /* Only passive scan allowed */
#define LORCON_RTAP_CHAN_DYN 0x0400 /* Dynamic CCK-OFDM channel */
#define LORCON_RTAP_CHAN_GFSK 0x0800 /* GFSK channel (FHSS PHY) */
#define LORCON_RTAP_CHAN_STURBO 0x2000 /* 11a static turbo channel only */
/* Useful combinations of channel characteristics, borrowed from Ethereal */
#define LORCON_RTAP_CHAN_A \
(LORCON_RTAP_CHAN_5GHZ | LORCON_RTAP_CHAN_OFDM)
#define LORCON_RTAP_CHAN_B \
(LORCON_RTAP_CHAN_2GHZ | LORCON_RTAP_CHAN_CCK)
#define LORCON_RTAP_CHAN_G \
(LORCON_RTAP_CHAN_2GHZ | LORCON_RTAP_CHAN_DYN)
#define LORCON_RTAP_CHAN_TA \
(LORCON_RTAP_CHAN_5GHZ | LORCON_RTAP_CHAN_OFDM | \
LORCON_RTAP_CHAN_TURBO)
#define LORCON_RTAP_CHAN_TG \
(LORCON_RTAP_CHAN_2GHZ | LORCON_RTAP_CHAN_DYN | \
LORCON_RTAP_CHAN_TURBO)
/* Values are in a quantity of 500 Kbps increments */
#define LORCON_RATE_DEFAULT 0
#define LORCON_RATE_1MB 2
#define LORCON_RATE_2MB 4
#define LORCON_RATE_5_5MB 11
#define LORCON_RATE_6MB 12
#define LORCON_RATE_9MB 18
#define LORCON_RATE_11MB 22
#define LORCON_RATE_12MB 24
#define LORCON_RATE_18MB 36
#define LORCON_RATE_24MB 48
#define LORCON_RATE_36MB 72
#define LORCON_RATE_48MB 96
#define LORCON_RATE_54MB 108
#define LORCON_RATE_108MB 216
struct lorcon_packet {
struct timeval ts;
int dlt;
/* Channel we captured on, if available in packet headers, or channel we
* will tx on */
int channel;
/* Length of components */
int length;
int length_header;
int length_data;
/* LCPA assembly fragment */
struct lcpa_metapack *lcpa;
/* Do we free the data when we free the packet */
int free_data;
/* Beginning of packet from line */
const u_char *packet_raw;
/* Beginning of packet data after per-packet headers */
const u_char *packet_header;
/* Beginning of packet data */
const u_char *packet_data;
/* Additional info */
void *extra_info;
int extra_type;
/* Interface that generated this packet */
struct lorcon *interface;
/* If transmitting, do we set a transmit MCS rate? */
unsigned int set_tx_mcs;
/* If transmitting with MCS rates set, the rate, short GI, and 40mhz */
unsigned int tx_mcs_rate;
unsigned int tx_mcs_short_guard;
unsigned int tx_mcs_40mhz;
};
typedef struct lorcon_packet lorcon_packet_t;
#define LORCON_PACKET_EXTRA_NONE 0
#define LORCON_PACKET_EXTRA_80211 1
#define LORCON_PACKET_EXTRA_8023 2
/* 802.11 extra info */
struct lorcon_dot11_extra {
int type, subtype;
int reason_code;
int corrupt;
/* Note: these are pointers to the data segment, NOT allocated */
const u_char *source_mac, *dest_mac, *bssid_mac, *other_mac;
unsigned int from_ds, to_ds, frame_protected, fragmented, retry;
unsigned int qos, sequence, duration, fragment;
uint16_t capability;
};
typedef struct lorcon_dot11_extra lorcon_dot11_extra_t;
/* 802.3 extra info */
struct lorcon_dot3_extra {
const u_char *source_mac, *dest_mac;
unsigned int llc_type;
};
typedef struct lorcon_dot3_extra lorcon_dot3_extra_t;
void lorcon_packet_free(lorcon_packet_t *packet);
int lorcon_packet_decode(lorcon_packet_t *packet);
/* Set channel field */
void lorcon_packet_set_channel(lorcon_packet_t *packet, int channel);
/* Set MCS rates */
void lorcon_packet_set_mcs(lorcon_packet_t *packet, unsigned int use_mcs,
unsigned int mcs, unsigned int short_gi, unsigned int use_40mhz);
/* Is data freed when packet is freed (NO if sharing data block) */
void lorcon_packet_set_freedata(lorcon_packet_t *packet, int freedata);
/* Transform a LCPA into a lorcon packet */
lorcon_packet_t *lorcon_packet_from_lcpa(struct lorcon *context,
struct lcpa_metapack *lcpa);
/* Transform a pcap into a lorcon packet and process the DLT */
lorcon_packet_t *lorcon_packet_from_pcap(struct lorcon *context,
const struct pcap_pkthdr *h,
const u_char *bytes);
/* Transform a lorcon packet into a bytestream for injection via the settings in
* the LORCON context (IE DLT translation is controlled by the context DLT, most
* contexts will use this). Caller is responsible for freeing bytes */
int lorcon_packet_txprep_by_ctx(struct lorcon *context, lorcon_packet_t *packet,
u_char **data);
/* Convert a *data* packet to 802.3 ethernet form, primarily for use with
* external packet dissectors which don't speak dot11. This does not make
* sense to do to an encrypted packet */
int lorcon_packet_to_dot3(lorcon_packet_t *packet, u_char **data);
/* Convert an 802.3 ethernet packet to 802.11, primarily for use with external
* packet assemblers which don't speak dot11 */
lorcon_packet_t *lorcon_packet_from_dot3(u_char *bssid, int dot11_direction,
u_char *data, int length);
/* Get dot11 extra
* Returns NULL if no dot11 extra data
* */
lorcon_dot11_extra_t *lorcon_packet_get_dot11_extra(lorcon_packet_t *packet);
/* Get dot3 extra
* Returns NULL if no dot3 extra data
* */
lorcon_dot3_extra_t *lorcon_packet_get_dot3_extra(lorcon_packet_t *packet);
/* Get the source mac, or null */
const u_char *lorcon_packet_get_source_mac(lorcon_packet_t *packet);
/* Get the destination mac, or null */
const u_char *lorcon_packet_get_dest_mac(lorcon_packet_t *packet);
/* Get the bssid, or null */
const u_char *locon_packet_get_bssid_mac(lorcon_packet_t *packet);
/* Get the LLC type if we can (dot3) */
uint16_t lorcon_packet_get_llc_type(lorcon_packet_t *packet);
/* Get the interface */
struct lorcon *lorcon_packet_get_interface(lorcon_packet_t *packet);
#endif