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# libnet-macros.h File Reference

libnet macros and symbolic constants More...

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## Defines
#define | LIBNET_DONT_RESOLVE 0
#define | LIBNET_RESOLVE 1
#define | LIBNET_ON 0
#define | LIBNET_OFF 1
#define | IN6ADDR_ERROR_INIT
#define | LIBNET_PR2 0
#define | LIBNET_PR8 1
#define | LIBNET_PR16 2
#define | LIBNET_PRu16 3
#define | LIBNET_PR32 4
#define | LIBNET_PRu32 5
#define | LIBNET_PRAND_MAX 0xffffffff
#define | LIBNET_MAX_PACKET 0xffff
#define | IP_MAXPACKET 0xffff
#define | ETHER_ADDR_LEN 0x6
#define | FDDI_ADDR_LEN 0x6
#define | TOKEN_RING_ADDR_LEN 0x6
#define | LIBNET_ORG_CODE_SIZE 0x3
#define | LIBNET_ERRBUF_SIZE 0x100
#define | LIBNET_MAXOPTION_SIZE 0x28
#define | FIX(n) (n)
#define | UNFIX(n) (n)
#define | LIBNET_DO_PAYLOAD(l, p)
#define | LIBNET_CKSUM_CARRY(x) (x = (x >> 16) + (x & 0xffff), (~(x + (x >> 16)) & 0xffff))
#define | LIBNET_OSPF_AUTHCPY(x, y) memcpy((uint8_t *)x, (uint8_t *)y, sizeof(y))
#define | LIBNET_OSPF_CKSUMBUF(x, y) memcpy((uint8_t *)x, (uint8_t *)y, sizeof(y))
#define | LIBNET_NTP_DO_LI_VN_MODE(li, vn, md) ((uint8_t)((((li) << 6) & 0xc0) | (((vn) << 3) & 0x38) | ((md) & 0x7)))
#define | LIBNET_ISLOOPBACK(p) (strcmp((p)->ifr_name, "lo0") == 0)
#define | LIBNET_ISADVMODE(x) (x & 0x08)
#define | LIBNET_LABEL_SIZE 64
#define | LIBNET_LABEL_DEFAULT "cardshark"
#define | CQ_LOCK_UNLOCKED (u_int)0x00000000
#define | CQ_LOCK_READ (u_int)0x00000001
#define | CQ_LOCK_WRITE (u_int)0x00000002
#define | for_each_context_in_cq(l) for (l = libnet_cq_head(); libnet_cq_last(); l = libnet_cq_next())
#define | cq_is_wlocked() (l_cqd.cq_lock & CQ_LOCK_WRITE)
#define | cq_is_rlocked() (l_cqd.cq_lock & CQ_LOCK_READ)
#define | cq_is_locked() (l_cqd.cq_lock & (CQ_LOCK_READ | CQ_LOCK_WRITE))
#define | check_cq_lock(x) (l_cqd.cq_lock & x)

## Detailed Description

libnet macros and symbolic constants

## Define Documentation

#define for_each_context_in_cq | ( | l |  | ) | for (l = libnet_cq_head(); libnet_cq_last(); l = libnet_cq_next())

Provides an interface to iterate through the context queue of libnet contexts. Before calling this macro, be sure to set the queue using libnet_cq_head().

#define IN6ADDR_ERROR_INIT

Value:

    { { { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
                                     0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
                                     0xff, 0xff } } }

IPv6 error code

#define LIBNET_DO_PAYLOAD | ( | l,
|  | p |  | ) |

Value:

    if (payload_s && !payload)                                                   \
    {                                                                            \
        snprintf(l->err_buf, LIBNET_ERRBUF_SIZE,                                 \
                "%s(): payload inconsistency\n", __func__);                      \
        goto bad;                                                                \
    }                                                                            \
    if (payload_s)                                                               \
    {                                                                            \
        n = libnet_pblock_append(l, p, payload, payload_s);                      \
        if (n == (uint32_t) - 1)                                                 \
        {                                                                        \
            goto bad;                                                            \
        }                                                                        \
    }                                                                            \

#define LIBNET_DONT_RESOLVE 0

Used for libnet's name resolution functions, specifies that no DNS lookups should be performed and the IP address should be kept in numeric form.

#define LIBNET_ERRBUF_SIZE 0x100

The libnet error buffer is 256 bytes long.

#define LIBNET_MAX_PACKET 0xffff

The biggest an IP packet can be -- 65,535 bytes.

#define LIBNET_MAXOPTION_SIZE 0x28

IP and TCP options can be up to 40 bytes long.

#define LIBNET_OFF 1

Used several places, to specify "on" or "one"

#define LIBNET_ON 0

Used several places, to specify "on" or "one"

#define LIBNET_PR2 0

Used for libnet_get_prand() to specify function disposition

#define LIBNET_RESOLVE 1

Used for libnet's name resolution functions, specifies that a DNS lookup can be performed if needed to resolve the IP address to a canonical form.