udp2raw/pcap_wrapper.h

#pragma once

//#ifdef __cplusplus
// extern "C" {
//#endif

//#include <sys/time.h>
//#include <stdint.h>

struct bpf_program {
    char a[4096];
};

struct pcap_t {
    char a[4096];
};

typedef unsigned int bpf_u_int32;

typedef struct my_timeval {
    int tv_sec;
    int tv_usec;
} my_timeval;

struct pcap_pkthdr {
    struct my_timeval ts; /* time stamp */
    bpf_u_int32 caplen;   /* length of portion present */
    bpf_u_int32 len;      /* length this packet (off wire) */
};

typedef enum {
    PCAP_D_INOUT = 0,
    PCAP_D_IN,
    PCAP_D_OUT
} pcap_direction_t;

struct pcap_addr {
    struct pcap_addr *next;
    struct sockaddr *addr;      /* address */
    struct sockaddr *netmask;   /* netmask for that address */
    struct sockaddr *broadaddr; /* broadcast address for that address */
    struct sockaddr *dstaddr;   /* P2P destination address for that address */
};

struct pcap_if {
    struct pcap_if *next;
    char *name;        /* name to hand to "pcap_open_live()" */
    char *description; /* textual description of interface, or NULL */
    struct pcap_addr *addresses;
    bpf_u_int32 flags; /* PCAP_IF_ interface flags */
};

typedef struct pcap_if pcap_if_t;
typedef struct pcap_addr pcap_addr_t;

typedef unsigned char u_char;

#define PCAP_ERRBUF_SIZE 256

#define DLT_NULL 0    /* BSD loopback encapsulation */
#define DLT_EN10MB 1  /* Ethernet (10Mb) */
#define DLT_EN3MB 2   /* Experimental Ethernet (3Mb) */
#define DLT_AX25 3    /* Amateur Radio AX.25 */
#define DLT_PRONET 4  /* Proteon ProNET Token Ring */
#define DLT_CHAOS 5   /* Chaos */
#define DLT_IEEE802 6 /* 802.5 Token Ring */
#define DLT_ARCNET 7  /* ARCNET, with BSD-style header */
#define DLT_SLIP 8    /* Serial Line IP */
#define DLT_PPP 9     /* Point-to-point Protocol */
#define DLT_FDDI 10   /* FDDI */
#define DLT_LINUX_SLL 113

#define PCAP_NETMASK_UNKNOWN 0xffffffff

typedef void (*pcap_handler)(u_char *, const struct pcap_pkthdr *,
                             const u_char *);

extern int (*pcap_loop)(pcap_t *, int, pcap_handler, u_char *);

extern int (*pcap_breakloop)(pcap_t *);

extern pcap_t *(*pcap_create)(const char *, char *);

extern int (*pcap_set_snaplen)(pcap_t *, int);
extern int (*pcap_set_promisc)(pcap_t *, int);
extern int (*pcap_can_set_rfmon)(pcap_t *);
extern int (*pcap_set_rfmon)(pcap_t *, int);
extern int (*pcap_set_timeout)(pcap_t *, int);
extern int (*pcap_set_buffer_size)(pcap_t *, int);
extern int (*pcap_activate)(pcap_t *);

extern int (*pcap_setfilter)(pcap_t *, struct bpf_program *);
extern int (*pcap_setdirection)(pcap_t *, pcap_direction_t);

extern int (*pcap_datalink)(pcap_t *);

extern void (*pcap_freecode)(struct bpf_program *);

extern int (*pcap_compile)(pcap_t *, struct bpf_program *, const char *, int,
                           bpf_u_int32);

extern char *(*pcap_geterr)(pcap_t *);
extern int (*pcap_sendpacket)(pcap_t *, const u_char *, int);

extern char *(*pcap_lookupdev)(char *);

extern int (*pcap_findalldevs)(pcap_if_t **, char *);

inline int pcap_set_immediate_mode(pcap_t *, int) {
    return 0;
}

//#ifdef __cplusplus
//}
//#endif

int init_pcap();