+#define IN_LOOPBACKNET 127
+
+
+#define IP_TOS 1
+#define IP_TTL 2
+#define IP_HDRINCL 3
+#define IP_OPTIONS 4
+#define IP_ROUTER_ALERT 5
+#define IP_RECVOPTS 6
+#define IP_RETOPTS 7
+#define IP_PKTINFO 8
+#define IP_PKTOPTIONS 9
+#define IP_PMTUDISC 10
+#define IP_MTU_DISCOVER 10
+#define IP_RECVERR 11
+#define IP_RECVTTL 12
+#define IP_RECVTOS 13
+#define IP_MTU 14
+#define IP_FREEBIND 15
+#define IP_IPSEC_POLICY 16
+#define IP_XFRM_POLICY 17
+#define IP_PASSSEC 18
+#define IP_TRANSPARENT 19
+#define IP_ORIGDSTADDR 20
+#define IP_RECVORIGDSTADDR IP_ORIGDSTADDR
+#define IP_MINTTL 21
+#define IP_NODEFRAG 22
+#define IP_CHECKSUM 23
+#define IP_BIND_ADDRESS_NO_PORT 24
+#define IP_RECVFRAGSIZE 25
+#define IP_RECVERR_RFC4884 26
+#define IP_MULTICAST_IF 32
+#define IP_MULTICAST_TTL 33
+#define IP_MULTICAST_LOOP 34
+#define IP_ADD_MEMBERSHIP 35
+#define IP_DROP_MEMBERSHIP 36
+#define IP_UNBLOCK_SOURCE 37
+#define IP_BLOCK_SOURCE 38
+#define IP_ADD_SOURCE_MEMBERSHIP 39
+#define IP_DROP_SOURCE_MEMBERSHIP 40
+#define IP_MSFILTER 41
+#define IP_MULTICAST_ALL 49
+#define IP_UNICAST_IF 50
+
+#define IP_RECVRETOPTS IP_RETOPTS
+
+#define IP_PMTUDISC_DONT 0
+#define IP_PMTUDISC_WANT 1
+#define IP_PMTUDISC_DO 2
+#define IP_PMTUDISC_PROBE 3
+#define IP_PMTUDISC_INTERFACE 4
+#define IP_PMTUDISC_OMIT 5
+
+#define IP_DEFAULT_MULTICAST_TTL 1
+#define IP_DEFAULT_MULTICAST_LOOP 1
+#define IP_MAX_MEMBERSHIPS 20
+
+struct ip_opts {
+ struct in_addr ip_dst;
+ char ip_opts[40];
+};
+
+#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+
+#define MCAST_JOIN_GROUP 42
+#define MCAST_BLOCK_SOURCE 43
+#define MCAST_UNBLOCK_SOURCE 44
+#define MCAST_LEAVE_GROUP 45
+#define MCAST_JOIN_SOURCE_GROUP 46
+#define MCAST_LEAVE_SOURCE_GROUP 47
+#define MCAST_MSFILTER 48
+
+#define MCAST_EXCLUDE 0
+#define MCAST_INCLUDE 1
+
+struct ip_mreq {
+ struct in_addr imr_multiaddr;
+ struct in_addr imr_interface;
+};
+
+struct ip_mreqn {
+ struct in_addr imr_multiaddr;
+ struct in_addr imr_address;
+ int imr_ifindex;
+};
+
+struct ip_mreq_source {
+ struct in_addr imr_multiaddr;
+ struct in_addr imr_interface;
+ struct in_addr imr_sourceaddr;
+};
+
+struct ip_msfilter {
+ struct in_addr imsf_multiaddr;
+ struct in_addr imsf_interface;
+ uint32_t imsf_fmode;
+ uint32_t imsf_numsrc;
+ struct in_addr imsf_slist[1];
+};
+#define IP_MSFILTER_SIZE(numsrc) \
+ (sizeof(struct ip_msfilter) - sizeof(struct in_addr) \
+ + (numsrc) * sizeof(struct in_addr))
+
+struct group_req {
+ uint32_t gr_interface;
+ struct sockaddr_storage gr_group;
+};
+
+struct group_source_req {
+ uint32_t gsr_interface;
+ struct sockaddr_storage gsr_group;
+ struct sockaddr_storage gsr_source;
+};
+
+struct group_filter {
+ uint32_t gf_interface;
+ struct sockaddr_storage gf_group;
+ uint32_t gf_fmode;
+ uint32_t gf_numsrc;
+ struct sockaddr_storage gf_slist[1];
+};
+#define GROUP_FILTER_SIZE(numsrc) \
+ (sizeof(struct group_filter) - sizeof(struct sockaddr_storage) \
+ + (numsrc) * sizeof(struct sockaddr_storage))
+
+struct in_pktinfo {
+ int ipi_ifindex;
+ struct in_addr ipi_spec_dst;
+ struct in_addr ipi_addr;
+};
+
+struct in6_pktinfo {
+ struct in6_addr ipi6_addr;
+ unsigned ipi6_ifindex;
+};
+
+struct ip6_mtuinfo {
+ struct sockaddr_in6 ip6m_addr;
+ uint32_t ip6m_mtu;
+};
+#endif
+
+#define IPV6_ADDRFORM 1
+#define IPV6_2292PKTINFO 2
+#define IPV6_2292HOPOPTS 3
+#define IPV6_2292DSTOPTS 4
+#define IPV6_2292RTHDR 5
+#define IPV6_2292PKTOPTIONS 6
+#define IPV6_CHECKSUM 7
+#define IPV6_2292HOPLIMIT 8
+#define IPV6_NEXTHOP 9
+#define IPV6_AUTHHDR 10
+#define IPV6_UNICAST_HOPS 16
+#define IPV6_MULTICAST_IF 17
+#define IPV6_MULTICAST_HOPS 18
+#define IPV6_MULTICAST_LOOP 19
+#define IPV6_JOIN_GROUP 20
+#define IPV6_LEAVE_GROUP 21
+#define IPV6_ROUTER_ALERT 22
+#define IPV6_MTU_DISCOVER 23
+#define IPV6_MTU 24
+#define IPV6_RECVERR 25
+#define IPV6_V6ONLY 26
+#define IPV6_JOIN_ANYCAST 27
+#define IPV6_LEAVE_ANYCAST 28
+#define IPV6_MULTICAST_ALL 29
+#define IPV6_ROUTER_ALERT_ISOLATE 30
+#define IPV6_IPSEC_POLICY 34
+#define IPV6_XFRM_POLICY 35
+#define IPV6_HDRINCL 36
+
+#define IPV6_RECVPKTINFO 49
+#define IPV6_PKTINFO 50
+#define IPV6_RECVHOPLIMIT 51
+#define IPV6_HOPLIMIT 52
+#define IPV6_RECVHOPOPTS 53
+#define IPV6_HOPOPTS 54
+#define IPV6_RTHDRDSTOPTS 55
+#define IPV6_RECVRTHDR 56
+#define IPV6_RTHDR 57
+#define IPV6_RECVDSTOPTS 58
+#define IPV6_DSTOPTS 59
+#define IPV6_RECVPATHMTU 60
+#define IPV6_PATHMTU 61
+#define IPV6_DONTFRAG 62
+#define IPV6_RECVTCLASS 66
+#define IPV6_TCLASS 67
+#define IPV6_AUTOFLOWLABEL 70
+#define IPV6_ADDR_PREFERENCES 72
+#define IPV6_MINHOPCOUNT 73
+#define IPV6_ORIGDSTADDR 74
+#define IPV6_RECVORIGDSTADDR IPV6_ORIGDSTADDR
+#define IPV6_TRANSPARENT 75
+#define IPV6_UNICAST_IF 76
+#define IPV6_RECVFRAGSIZE 77
+#define IPV6_FREEBIND 78
+
+#define IPV6_ADD_MEMBERSHIP IPV6_JOIN_GROUP
+#define IPV6_DROP_MEMBERSHIP IPV6_LEAVE_GROUP
+#define IPV6_RXHOPOPTS IPV6_HOPOPTS
+#define IPV6_RXDSTOPTS IPV6_DSTOPTS
+
+#define IPV6_PMTUDISC_DONT 0
+#define IPV6_PMTUDISC_WANT 1
+#define IPV6_PMTUDISC_DO 2
+#define IPV6_PMTUDISC_PROBE 3
+#define IPV6_PMTUDISC_INTERFACE 4
+#define IPV6_PMTUDISC_OMIT 5
+
+#define IPV6_PREFER_SRC_TMP 0x0001
+#define IPV6_PREFER_SRC_PUBLIC 0x0002
+#define IPV6_PREFER_SRC_PUBTMP_DEFAULT 0x0100
+#define IPV6_PREFER_SRC_COA 0x0004
+#define IPV6_PREFER_SRC_HOME 0x0400
+#define IPV6_PREFER_SRC_CGA 0x0008
+#define IPV6_PREFER_SRC_NONCGA 0x0800
+
+#define IPV6_RTHDR_LOOSE 0
+#define IPV6_RTHDR_STRICT 1
+
+#define IPV6_RTHDR_TYPE_0 0
+
+#define __UAPI_DEF_IN_ADDR 0
+#define __UAPI_DEF_IN_IPPROTO 0
+#define __UAPI_DEF_IN_PKTINFO 0
+#define __UAPI_DEF_IP_MREQ 0
+#define __UAPI_DEF_SOCKADDR_IN 0
+#define __UAPI_DEF_IN_CLASS 0
+#define __UAPI_DEF_IN6_ADDR 0
+#define __UAPI_DEF_IN6_ADDR_ALT 0
+#define __UAPI_DEF_SOCKADDR_IN6 0
+#define __UAPI_DEF_IPV6_MREQ 0
+#define __UAPI_DEF_IPPROTO_V6 0
+#define __UAPI_DEF_IPV6_OPTIONS 0
+#define __UAPI_DEF_IN6_PKTINFO 0
+#define __UAPI_DEF_IP6_MTUINFO 0
+
+#ifdef __cplusplus
+}
+#endif
+