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ip.h
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#ifndef IP_H
#define IP_H
#if defined(CLOUD_ROUTER_SERVER) or defined(CLOUD_ROUTER_CLIENT)
#include "config.h"
#endif
#ifndef VM_IPV6
#define VM_IPV6 true
#endif
#if VM_IPV6
extern bool useIPv6;
#define VM_IPV6_B useIPv6
#else
#define VM_IPV6_B false
#endif
#define VM_IPV6_TYPE_MYSQL_COLUMN (VM_IPV6_B ? "varbinary(16)" : "int unsigned")
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/ip6.h>
#include <arpa/inet.h>
#include <string>
#include <math.h>
#include <iostream>
#include <sstream>
#include <iomanip>
#include <string.h>
#include <stdlib.h>
#include "endian.h"
#ifdef FREEBSD
#define __in6_u __u6_addr
#endif
#define IP_STR_MAX_LENGTH 50
#define IPPROTO_ESP_HEADER_SIZE 8
#define IPPROTO_ESP_FOOTER_SIZE 14
struct vmIP {
inline vmIP(u_int32_t ip = 0) {
this->ip.v4.n = ip;
#if VM_IPV6
v6 = false;
#endif
}
#if VM_IPV6
inline vmIP(in6_addr ip) {
this->ip.v6 = ip;
v6 = true;
}
#endif
void setIP(u_char *data_ip, unsigned data_ip_length, bool varbinary) {
clear();
#if VM_IPV6
if(varbinary) {
switch(data_ip_length) {
case 4:
ip.v4.n = ntohl(*(u_int32_t*)data_ip);
v6 = false;
break;
case 8:
case 9:
case 10:
{
unsigned int ipl = 0;
for(unsigned i = 0; i < data_ip_length; i++) {
ipl = ipl * 10 + (data_ip[i] - 0x30);
}
ip.v4.n = ipl;
v6 = false;
}
break;
case 16:
memcpy((u_char*)&ip.v6 + (sizeof(ip.v6) - data_ip_length), data_ip, data_ip_length);
for(unsigned i = 0; i < 4; i++) {
ip.v6.__in6_u.__u6_addr32[i] = ntohl(ip.v6.__in6_u.__u6_addr32[i]);
}
v6 = true;
break;
}
} else {
#endif
ip.v4.n = atol((char*)data_ip);
#if VM_IPV6
}
#endif
}
void setIP(void *db_row, const char *field);
inline void setIPv4(u_int32_t ip, bool ntoh = false) {
this->ip.v4.n = ip;
if(ntoh) {
this->ip.v4.n = ntohl(this->ip.v4.n);
}
#if VM_IPV6
v6 = false;
#endif
}
#if VM_IPV6
inline void setIPv6(in6_addr ip, bool ntoh = false) {
this->ip.v6 = ip;
if(ntoh) {
for(unsigned i = 0; i < 4; i++) {
this->ip.v6.__in6_u.__u6_addr32[i] = ntohl(this->ip.v6.__in6_u.__u6_addr32[i]);
}
}
v6 = true;
}
#endif
inline u_int32_t getIPv4(bool hton = false) const {
return(hton ?
htonl(this->ip.v4.n) :
this->ip.v4.n);
}
#if VM_IPV6
inline in6_addr getIPv6(bool hton = false) const {
if(hton) {
in6_addr _ip = this->ip.v6;
for(unsigned i = 0; i < 4; i++) {
_ip.__in6_u.__u6_addr32[i] = htonl(_ip.__in6_u.__u6_addr32[i]);
}
return(_ip);
} else {
return(this->ip.v6);
}
}
#endif
bool setFromString(const char *ip);
bool setFromString(const char *ip, const char **end_ptr);
std::string getString(bool ipv6_in_brackets = false) const;
std::string getStringForMysqlIpColumn(const char *table, const char *column) const;
std::string _getStringForMysqlIpColumn(int IPv) const;
inline bool isLocalhost() {
#if VM_IPV6
if(!v6) {
#endif
return((ip.v4.n >> 8) == 0x7F0000);
#if VM_IPV6
} else {
return((ip.v6.__in6_u.__u6_addr32[0] == 0 &&
ip.v6.__in6_u.__u6_addr32[1] == 0 &&
ip.v6.__in6_u.__u6_addr32[2] == 0 &&
ip.v6.__in6_u.__u6_addr32[3] == 1) ||
(ip.v6.__in6_u.__u6_addr32[0] == 0 &&
ip.v6.__in6_u.__u6_addr32[1] == 0 &&
ip.v6.__in6_u.__u6_addr32[2] == 0xFFFF &&
(ip.v6.__in6_u.__u6_addr32[3] >> 8) == 0x7F0000));
}
#endif
}
bool isLocalIP();
inline bool operator == (const vmIP& other) const {
#if VM_IPV6
return(this->v6 == other.v6 &&
(this->v6 ?
!memcmp(&this->ip.v6, &other.ip.v6, sizeof(this->ip.v6)) :
this->ip.v4.n == other.ip.v4.n));
#else
return(this->ip.v4.n == other.ip.v4.n);
#endif
}
inline bool operator != (const vmIP& other) const {
return(!(*this == other));
}
inline bool operator < (const vmIP& other) const {
#if VM_IPV6
return(this->v6 != other.v6 ?
this->v6 < other.v6 :
(this->v6 ?
memcmp(&this->ip.v6, &other.ip.v6, sizeof(this->ip.v6)) < 0 :
this->ip.v4.n < other.ip.v4.n));
#else
return(this->ip.v4.n < other.ip.v4.n);
#endif
}
inline bool operator <= (const vmIP& other) const {
return(*this < other ||
*this == other);
}
inline bool operator > (const vmIP& other) const {
return(!(*this <= other));
}
inline bool operator >= (const vmIP& other) const {
return(*this > other ||
*this == other);
}
inline bool isSet() const {
#if VM_IPV6
if(!v6) {
#endif
return(ip.v4.n != 0);
#if VM_IPV6
} else {
return(ip.v6.__in6_u.__u6_addr32[0] != 0 ||
ip.v6.__in6_u.__u6_addr32[1] != 0 ||
ip.v6.__in6_u.__u6_addr32[2] != 0 ||
ip.v6.__in6_u.__u6_addr32[3] != 0);
}
#endif
}
inline void clear(u_int32_t set = 0) {
#if VM_IPV6
v6 = false;
ip.v6.__in6_u.__u6_addr32[0] = set;
ip.v6.__in6_u.__u6_addr32[1] = set;
ip.v6.__in6_u.__u6_addr32[2] = set;
ip.v6.__in6_u.__u6_addr32[3] = set;
#else
ip.v4.n = set;
#endif
}
inline vmIP _and(vmIP mask) {
vmIP ip = *this;
#if VM_IPV6
if(!v6) {
#endif
ip.ip.v4.n &= mask.ip.v4.n;
#if VM_IPV6
} else {
for(unsigned i = 0; i < 4; i++) {
ip.ip.v6.__in6_u.__u6_addr32[i] &= mask.ip.v6.__in6_u.__u6_addr32[i];
}
}
#endif
return(ip);
}
inline vmIP _or(vmIP mask) {
vmIP ip = *this;
#if VM_IPV6
if(!v6) {
#endif
ip.ip.v4.n |= mask.ip.v4.n;
#if VM_IPV6
} else {
for(unsigned i = 0; i < 4; i++) {
ip.ip.v6.__in6_u.__u6_addr32[i] |= mask.ip.v6.__in6_u.__u6_addr32[i];
}
}
#endif
return(ip);
}
inline vmIP mask(vmIP mask) {
return(_and(mask));
}
inline vmIP network_mask(unsigned mask, bool enable_zero = false) {
vmIP ip;
#if VM_IPV6
if(!v6) {
ip.v6 = false;
#endif
if(!mask && !enable_zero) {
mask = 32;
}
ip.ip.v4.n = mask == 0 ? 0 : ((u_int32_t)-1 << (32 - mask)) & (u_int32_t)-1;
#if VM_IPV6
} else {
if(!mask) {
mask = 128;
}
ip.v6 = true;
for(unsigned i = 0; i < 4; i++) {
int _mask = mask - i * 32;
if(mask == 0 || _mask <= 0) {
ip.ip.v6.__in6_u.__u6_addr32[i] = 0;
} else if(_mask >= 32) {
ip.ip.v6.__in6_u.__u6_addr32[i] = (u_int32_t)-1;
} else {
ip.ip.v6.__in6_u.__u6_addr32[i] = ((u_int32_t)-1 << (32 - _mask)) & (u_int32_t)-1;
}
}
}
#endif
return(ip);
}
inline vmIP wildcard_mask(unsigned mask, bool enable_zero = false) {
vmIP ip;
#if VM_IPV6
if(!v6) {
ip.v6 = false;
#endif
if(!mask && !enable_zero) {
mask = 32;
}
ip.ip.v4.n = mask == 0 ? (u_int32_t)-1 : (u_int32_t)(pow(2, 32 - mask) - 1);
#if VM_IPV6
} else {
if(!mask) {
mask = 128;
}
ip.v6 = true;
for(unsigned i = 0; i < 4; i++) {
int _mask = mask - i * 32;
if(mask == 0 || _mask <= 0) {
ip.ip.v6.__in6_u.__u6_addr32[i] = (u_int32_t)-1;
} else if(_mask >= 32) {
ip.ip.v6.__in6_u.__u6_addr32[i] = 0;
} else {
ip.ip.v6.__in6_u.__u6_addr32[i] = (u_int32_t)(pow(2, 32 -_mask) - 1);
}
}
}
#endif
return(ip);
}
inline vmIP network(unsigned mask, bool enable_zero = false) {
return(this->_and(this->network_mask(mask, enable_zero)));
}
inline vmIP broadcast(unsigned mask, bool enable_zero = false) {
return(this->_or(this->wildcard_mask(mask, enable_zero)));
}
inline u_int32_t getHashNumber() {
#if VM_IPV6
if(!v6) {
#endif
return(ip.v4.n);
#if VM_IPV6
} else {
return(ip.v6.__in6_u.__u6_addr32[3]);
}
#endif
}
inline void *getPointerToIP() {
#if VM_IPV6
if(!v6) {
#endif
return(&ip.v4.n);
#if VM_IPV6
} else {
return(&ip.v6);
}
#endif
}
inline bool is_v6() {
#if VM_IPV6
return(v6);
#else
return(false);
#endif
}
inline u_int8_t bits() const {
#if VM_IPV6
return(v6 ? 128 : 32);
#else
return(32);
#endif
}
inline bool is_net_mask(int bits) {
return(bits > 0 && bits < this->bits());
}
inline void set_to_v6() {
#if VM_IPV6
v6 = true;
for(unsigned i = 0; i < sizeof(ip.v4.filler) / sizeof(ip.v4.filler[0]); i++) {
ip.v4.filler[i] = 0;
}
#endif
}
inline void set_to_v4() {
#if VM_IPV6
v6 = false;
#endif
}
#if VM_IPV6
u_int8_t v6;
#endif
union {
struct {
#if VM_IPV6
u_int32_t filler[3];
#endif
u_int32_t n;
} v4;
#if VM_IPV6
in6_addr v6;
#endif
} ip;
};
#define IP6_EXT_HEADERS_MAX 10
#if VM_IPV6
struct ip6hdr2 {
inline vmIP get_saddr() {
in6_addr __saddr = _saddr;
for(unsigned i = 0; i < 4; i++) {
__saddr.__in6_u.__u6_addr32[i] = ntohl(__saddr.__in6_u.__u6_addr32[i]);
}
return(__saddr);
}
inline vmIP get_daddr() {
in6_addr __daddr = _daddr;
for(unsigned i = 0; i < 4; i++) {
__daddr.__in6_u.__u6_addr32[i] = ntohl(__daddr.__in6_u.__u6_addr32[i]);
}
return(__daddr);
}
inline void set_saddr(vmIP &ip) {
_saddr = ip.getIPv6();
for(unsigned i = 0; i < 4; i++) {
_saddr.__in6_u.__u6_addr32[i] = htonl(_saddr.__in6_u.__u6_addr32[i]);
}
}
inline void set_daddr(vmIP &ip) {
_daddr = ip.getIPv6();
for(unsigned i = 0; i < 4; i++) {
_daddr.__in6_u.__u6_addr32[i] = htonl(_daddr.__in6_u.__u6_addr32[i]);
}
}
static inline bool is_ext_header(u_int8_t header_id) {
return(header_id == IPPROTO_HOPOPTS ||
header_id == IPPROTO_ROUTING ||
header_id == IPPROTO_FRAGMENT ||
header_id == IPPROTO_ICMPV6 ||
header_id == IPPROTO_NONE ||
header_id == IPPROTO_DSTOPTS
#ifdef IPPROTO_MH
|| header_id == IPPROTO_MH
#endif
);
}
static inline u_int16_t get_ext_header_size(u_char *header, u_int8_t header_id) {
return(header_id == IPPROTO_HOPOPTS ? ((ip6_hbh*)header)->ip6h_len :
header_id == IPPROTO_ROUTING ? ((ip6_rthdr*)header)->ip6r_len :
header_id == IPPROTO_FRAGMENT ? sizeof(ip6_frag) :
header_id == IPPROTO_ICMPV6 ? ((ip6_ext*)header)->ip6e_len :
header_id == IPPROTO_NONE ? ((ip6_ext*)header)->ip6e_len :
header_id == IPPROTO_DSTOPTS ? ((ip6_dest*)header)->ip6d_len :
#ifdef IPPROTO_MH
header_id == IPPROTO_MH ? ((ip6_ext*)header)->ip6e_len :
#endif
0);
}
static inline u_int16_t get_ext_header_nxt(u_char *header, u_int8_t header_id) {
return(header_id == IPPROTO_HOPOPTS ? ((ip6_hbh*)header)->ip6h_nxt :
header_id == IPPROTO_ROUTING ? ((ip6_rthdr*)header)->ip6r_nxt :
header_id == IPPROTO_FRAGMENT ? ((ip6_frag*)header)->ip6f_nxt :
header_id == IPPROTO_ICMPV6 ? ((ip6_ext*)header)->ip6e_nxt :
header_id == IPPROTO_NONE ? ((ip6_ext*)header)->ip6e_nxt :
header_id == IPPROTO_DSTOPTS ? ((ip6_dest*)header)->ip6d_nxt :
#ifdef IPPROTO_MH
header_id == IPPROTO_MH ? ((ip6_ext*)header)->ip6e_nxt :
#endif
0);
}
inline u_int32_t get_tot_len() {
return(sizeof(ip6hdr2) + ntohs(this->plen));
}
inline void set_tot_len(u_int32_t tot_len) {
this->plen = htons(tot_len - sizeof(ip6hdr2));
}
inline u_int8_t get_tos() {
return(0);
}
inline u_int32_t get_frag_id() {
ip6_frag *frag = (ip6_frag*)get_ext_header(IPPROTO_FRAGMENT);
return(frag ? ntohl(frag->ip6f_ident) : 0);
}
inline u_int16_t get_frag_data() {
ip6_frag *frag = (ip6_frag*)get_ext_header(IPPROTO_FRAGMENT);
return(frag ? ntohs(frag->ip6f_offlg) : 0);
}
inline bool is_more_frag(u_int16_t frag_data) {
return(frag_data & 1);
}
inline u_int16_t get_frag_offset(u_int16_t frag_data) {
return(frag_data >> 3 << 3);
}
inline void clear_frag_data() {
ip6_frag *frag = (ip6_frag*)get_ext_header(IPPROTO_FRAGMENT);
if(frag) {
frag->ip6f_offlg = 0;
}
}
inline u_int8_t _get_protocol() {
return(get_ext_headers(NULL, 0, NULL));
}
inline u_int8_t get_protocol() {
u_int8_t proto = _get_protocol();
if(proto == IPPROTO_ESP) {
proto = *(u_int8_t*)((u_char*)this + get_tot_len() - IPPROTO_ESP_FOOTER_SIZE + 1);
}
return(proto);
}
inline void set_protocol(u_int8_t protocol) {
nxt = protocol;
}
inline u_int16_t _get_hdr_size() {
return(get_total_headers_len());
}
inline u_int16_t get_hdr_size(u_int8_t *proto_rslt = NULL) {
u_int8_t proto;
u_int16_t hdr_size = get_total_headers_len(&proto);
if(proto_rslt) {
*proto_rslt = proto;
}
if(hdr_size == (u_int16_t)-1) {
return(-1);
}
if(proto == IPPROTO_ESP) {
hdr_size += IPPROTO_ESP_HEADER_SIZE;
}
return(hdr_size);
}
inline bool is_ext_headers() {
return(is_ext_header(nxt));
}
u_int8_t get_ext_headers(u_int8_t *ext_headers_type, u_int8_t ext_headers_max, u_int8_t *ext_headers_count);
u_int16_t get_ext_headers_len(u_int8_t *proto = NULL);
inline u_int16_t get_total_headers_len(u_int8_t *proto = NULL) {
u_int16_t ext_headers_len = get_ext_headers_len(proto);
if(ext_headers_len == (u_int16_t)-1) {
return(-1);
}
return(ext_headers_len + sizeof(ip6hdr2));
}
u_int16_t get_ext_header_offset(u_int8_t header_id);
inline u_char *get_ext_header(u_int8_t header_id) {
u_int16_t offset = get_ext_header_offset(header_id);
return(offset == (u_int16_t)-1 ? NULL : (u_char*)this + offset);
}
#if __BYTE_ORDER == __LITTLE_ENDIAN
unsigned tc1:4;
unsigned version:4;
unsigned flow_id_1:4;
unsigned tc2:4;
unsigned flow_id_2:16;
#elif __BYTE_ORDER == __BIG_ENDIAN
unsigned version:4;
unsigned tc1:4;
unsigned tc2:4;
unsigned flow_id_1:4;
unsigned flow_id_2:16;
#endif
u_int16_t plen;
u_int8_t nxt;
u_int8_t hlim;
in6_addr _saddr;
in6_addr _daddr;
};
#endif
struct iphdr2 {
inline vmIP get_saddr() {
#if VM_IPV6
if(version == 4) {
#endif
return(ntohl(_saddr));
#if VM_IPV6
} else {
return(((ip6hdr2*)this)->get_saddr());
}
#endif
}
inline vmIP get_daddr() {
#if VM_IPV6
if(version == 4) {
#endif
return(ntohl(_daddr));
#if VM_IPV6
} else {
return(((ip6hdr2*)this)->get_daddr());
}
#endif
}
inline void set_saddr(vmIP &ip) {
#if VM_IPV6
if(version == 4) {
#endif
_saddr = htonl(ip.getIPv4());
#if VM_IPV6
} else {
((ip6hdr2*)this)->set_saddr(ip);
}
#endif
}
inline void set_daddr(vmIP &ip) {
#if VM_IPV6
if(version == 4) {
#endif
_daddr = htonl(ip.getIPv4());
#if VM_IPV6
} else {
((ip6hdr2*)this)->set_daddr(ip);
}
#endif
}
inline void _set_saddr(u_int32_t ip) {
#if VM_IPV6
if(version == 4) {
#endif
_saddr = ip;
#if VM_IPV6
} else {
}
#endif
}
inline void _set_daddr(u_int32_t ip) {
#if VM_IPV6
if(version == 4) {
#endif
_daddr = ip;
#if VM_IPV6
} else {
}
#endif
}
inline u_int32_t get_tot_len() {
#if VM_IPV6
if(version == 4) {
#endif
return(ntohs(_tot_len));
#if VM_IPV6
} else {
return(((ip6hdr2*)this)->get_tot_len());
}
#endif
}
inline void set_tot_len(u_int32_t tot_len) {
#if VM_IPV6
if(version == 4) {
#endif
_tot_len = htons(tot_len);
#if VM_IPV6
} else {
((ip6hdr2*)this)->set_tot_len(tot_len);
}
#endif
}
inline u_int8_t get_tos() {
#if VM_IPV6
if(version == 4) {
#endif
return(_tos);
#if VM_IPV6
} else {
return(((ip6hdr2*)this)->get_tos());
}
#endif
}
inline u_int32_t get_frag_id() {
#if VM_IPV6
if(version == 4) {
#endif
return(ntohs(_id));
#if VM_IPV6
} else {
return(((ip6hdr2*)this)->get_frag_id());
}
#endif
}
inline u_int16_t get_frag_data() {
#if VM_IPV6
if(version == 4) {
#endif
return(ntohs(_frag_off));
#if VM_IPV6
} else {
return(((ip6hdr2*)this)->get_frag_data());
}
#endif
}
inline bool is_more_frag(u_int16_t frag_data) {
#if VM_IPV6
if(version == 4) {
#endif
return(frag_data & IP_MF);
#if VM_IPV6
} else {
return(((ip6hdr2*)this)->is_more_frag(frag_data));
}
#endif
}
inline u_int16_t get_frag_offset(u_int16_t frag_data) {
#if VM_IPV6
if(version == 4) {
#endif
return((frag_data & IP_OFFMASK) << 3);
#if VM_IPV6
} else {
return(((ip6hdr2*)this)->get_frag_offset(frag_data));
}
#endif
}
inline void clear_frag_data() {
#if VM_IPV6
if(version == 4) {
#endif
_frag_off = 0;
#if VM_IPV6
} else {
((ip6hdr2*)this)->clear_frag_data();
}
#endif
}
inline u_int8_t get_ttl() {
#if VM_IPV6
if(version == 4) {
#endif
return(_ttl);
#if VM_IPV6
} else {
return(0);
}
#endif
}
inline void set_ttl(u_int8_t ttl) {
#if VM_IPV6
if(version == 4) {
#endif
_ttl = ttl;
#if VM_IPV6
} else {
}
#endif
}
inline u_int8_t _get_protocol() {
#if VM_IPV6
if(version == 4) {
#endif
return(_protocol);
#if VM_IPV6
} else {
return(((ip6hdr2*)this)->_get_protocol());
}
#endif
}
inline u_int8_t get_protocol() {
#if VM_IPV6
if(version == 4) {
#endif
if(_protocol == IPPROTO_ESP) {
return(*(u_int8_t*)((u_char*)this + get_tot_len() - IPPROTO_ESP_FOOTER_SIZE + 1));
} else {
return(_protocol);
}
#if VM_IPV6
} else {
return(((ip6hdr2*)this)->get_protocol());
}
#endif
}
inline void set_protocol(u_int8_t protocol) {
#if VM_IPV6
if(version == 4) {
#endif
_protocol = protocol;
#if VM_IPV6
} else {
((ip6hdr2*)this)->set_protocol(protocol);
}
#endif
}
inline u_int16_t get_hdr_size(u_int8_t *proto_rslt = NULL) {
#if VM_IPV6
if(version == 4) {
#endif
u_int16_t hdr_size = sizeof(iphdr2);
if(_protocol == IPPROTO_ESP) {
hdr_size += IPPROTO_ESP_HEADER_SIZE;
}
if(proto_rslt) {
*proto_rslt = _protocol;
}
return(hdr_size);
#if VM_IPV6
} else {
return(((ip6hdr2*)this)->get_hdr_size(proto_rslt));
}
#endif
}
inline u_int16_t get_footer_size(u_int8_t proto = (u_int8_t)-1) {
if(proto == (u_int8_t)-1) {
proto = _get_protocol();
}
if(proto == IPPROTO_ESP) {
u_int8_t padding = *(u_int8_t*)((u_char*)this + get_tot_len() - IPPROTO_ESP_FOOTER_SIZE);
return(IPPROTO_ESP_FOOTER_SIZE + padding);
}
return(0);
}
inline u_int16_t get_check() {
#if VM_IPV6
if(version == 4) {
#endif
return(ntohs(_check));
#if VM_IPV6
} else {
return(0);
}
#endif
}
inline void set_check(u_int16_t check) {
#if VM_IPV6
if(version == 4) {
#endif
_check = htons(check);
#if VM_IPV6
} else {
}
#endif
}
inline u_int8_t get_ihl() {
#if VM_IPV6
if(version == 4) {
#endif
return(_ihl);
#if VM_IPV6
} else {
return(0);
}
#endif
}
inline bool version_is_ok() {
return(version == 4
#if VM_IPV6
|| version == 6
#endif
);
}
static inline iphdr2* create(unsigned version) {
#if VM_IPV6
if(version == 4) {
#endif
iphdr2 *iphdr = new iphdr2;
memset(iphdr, 0, sizeof(*iphdr));
iphdr->version = 4;
iphdr->_ihl = 5;
iphdr->_ttl = 50;
return(iphdr);
#if VM_IPV6
} else {
ip6hdr2 *iphdr = new ip6hdr2;
memset(iphdr, 0, sizeof(*iphdr));
iphdr->version = 6;
return((iphdr2*)iphdr);
}
#endif
}
#if __BYTE_ORDER == __LITTLE_ENDIAN
unsigned int _ihl:4;
unsigned int version:4;
#elif __BYTE_ORDER == __BIG_ENDIAN
unsigned int version:4;
unsigned int _ihl:4;
#else
# error "Please fix <bits/endian.h>"
#endif
u_int8_t _tos;
u_int16_t _tot_len;
u_int16_t _id;
u_int16_t _frag_off;
u_int8_t _ttl;
u_int8_t _protocol;
u_int16_t _check;
u_int32_t _saddr;
u_int32_t _daddr;
/*The options start here. */
#ifdef PACKED
} __attribute__((packed));
#else
};
#endif
struct vmPort {
inline vmPort(u_int16_t port = 0) {
this->port = port;
}
inline void setPort(u_int16_t port, bool ntoh = false) {
this->port = port;
if(ntoh) {
this->port = ntohs(this->port);
}
}
inline u_int16_t getPort(bool hton = false) const {
return(hton ?
htons(this->port) :
this->port);
}
inline operator int() const {
return(port);
}
vmPort &setFromString(const char *port, bool inv = false) {
this->port = atoi(port);
if(inv) {
this->port = htons(this->port);
}
return(*this);
}
std::string getString();
inline bool operator == (const vmPort& other) const {
return(this->port == other.port);
}
inline bool operator != (const vmPort& other) const {
return(this->port != other.port);
}
inline bool operator < (const vmPort& other) const {
return(this->port < other.port);
}
inline bool operator > (const vmPort& other) const {
return(this->port > other.port);
}
inline bool isSet() const {
return(port != 0);
}
inline void clear() {
port = 0;
}
inline vmPort inc(int inc = 1) {
vmPort port = *this;
port.port += inc;
return(port);
}
inline vmPort dec(int dec = 1) {
vmPort port = *this;
port.port -= dec;
return(port);
}
u_int16_t port;
};
inline std::ostream& operator << (std::ostream& os, const vmPort &port) {
os << port.getPort();
return(os);
}
struct tcphdr2{
inline vmPort get_source() {
return(ntohs(_source));
}
inline vmPort get_dest() {
return(ntohs(_dest));
}
inline void set_source(vmPort port) {
_source = htons(port.port);
}
inline void set_dest(vmPort port) {
_dest = htons(port.port);
}
u_int16_t _source;
u_int16_t _dest;
u_int32_t seq;
u_int32_t ack_seq;
# if __BYTE_ORDER == __LITTLE_ENDIAN
u_int16_t res1:4;
u_int16_t doff:4;
u_int16_t fin:1;
u_int16_t syn:1;
u_int16_t rst:1;
u_int16_t psh:1;
u_int16_t ack:1;
u_int16_t urg:1;
u_int16_t res2:2;
# elif __BYTE_ORDER == __BIG_ENDIAN
u_int16_t doff:4;
u_int16_t res1:4;
u_int16_t res2:2;
u_int16_t urg:1;
u_int16_t ack:1;
u_int16_t psh:1;
u_int16_t rst:1;
u_int16_t syn:1;
u_int16_t fin:1;
# else
# error "Adjust your <bits/endian.h> defines"
# endif
u_int16_t window;
u_int16_t check;
u_int16_t urg_ptr;
};
struct udphdr2 {
inline vmPort get_source() {
return(ntohs(_source));
}
inline vmPort get_dest() {
return(ntohs(_dest));
}
inline void set_source(vmPort port) {
_source = htons(port.port);
}
inline void set_dest(vmPort port) {
_dest = htons(port.port);
}
uint16_t _source;
uint16_t _dest;
uint16_t len;
uint16_t check;
};