libnet  latest
A Portable Framework for Low-Level Network Packet Construction
Macros
libnet-macros.h File Reference

libnet macros and symbolic constants More...

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Macros

#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_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.
 
#define LIBNET_ON   0
 Used several places, to specify "on" or "one".
 
#define LIBNET_OFF   1
 Used several places, to specify "on" or "one".
 
#define IN6ADDR_ERROR_INIT
 IPv6 error code. More...
 
#define LIBNET_PR2   0
 Used for libnet_get_prand() to specify function disposition.
 
#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
 The biggest an IP packet can be – 65,535 bytes.
 
#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
 The libnet error buffer is 256 bytes long.
 
#define LIBNET_MAXOPTION_SIZE   0x28
 IP and TCP options can be up to 40 bytes long.
 
#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, "lo") == 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())
 Provides an interface to iterate through the context queue of libnet contexts. More...
 
#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

Macro Definition Documentation

§ for_each_context_in_cq

#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().

§ IN6ADDR_ERROR_INIT

#define IN6ADDR_ERROR_INIT
Value:
{ { { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
0xff, 0xff } } }

IPv6 error code.

§ LIBNET_DO_PAYLOAD

#define LIBNET_DO_PAYLOAD (   l,
 
)
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_ERRBUF_SIZE
The libnet error buffer is 256 bytes long.
Definition: libnet-macros.h:112