diff options
Diffstat (limited to 'include/headers.h')
| -rw-r--r-- | include/headers.h | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/include/headers.h b/include/headers.h new file mode 100644 index 0000000..13324c7 --- /dev/null +++ b/include/headers.h @@ -0,0 +1,159 @@ +#ifndef NFTABLES_HEADERS_H +#define NFTABLES_HEADERS_H + +#include <netinet/in.h> + +#ifndef IPPROTO_UDPLITE +# define IPPROTO_UDPLITE 136 +#endif + +enum tcp_hdr_flags { + TCP_FLAG_FIN = 0x01, + TCP_FLAG_SYN = 0x02, + TCP_FLAG_RST = 0x04, + TCP_FLAG_PSH = 0x08, + TCP_FLAG_ACK = 0x10, + TCP_FLAG_URG = 0x20, + TCP_FLAG_ECN = 0x40, + TCP_FLAG_CWR = 0x80, +}; + +struct ip_auth_hdr { + uint8_t nexthdr; + uint8_t hdrlen; + uint16_t reserved; + uint32_t spi; + uint32_t seq_no; +}; + +struct ip_esp_hdr { + uint32_t spi; + uint32_t seq_no; +}; + +struct ip_comp_hdr { + uint8_t nexthdr; + uint8_t flags; + uint16_t cpi; +}; + +#ifndef IPPROTO_DCCP +# define IPPROTO_DCCP 33 +#endif + +enum dccp_pkt_type { + DCCP_PKT_REQUEST = 0, + DCCP_PKT_RESPONSE, + DCCP_PKT_DATA, + DCCP_PKT_ACK, + DCCP_PKT_DATAACK, + DCCP_PKT_CLOSEREQ, + DCCP_PKT_CLOSE, + DCCP_PKT_RESET, + DCCP_PKT_SYNC, + DCCP_PKT_SYNCACK, + DCCP_PKT_INVALID, +}; + +struct dccp_hdr { + uint16_t dccph_sport, + dccph_dport; + uint8_t dccph_doff; + uint8_t dccph_ccval:4, + dccph_cscov:4; + uint16_t dccph_checksum; + uint8_t dccph_reserved:3, + dccph_type:4, + dccph_x:1; + uint8_t dccph_seq2; + uint16_t dccph_seq; +}; + +#ifndef IPPROTO_SCTP +# define IPPROTO_SCTP 132 +#endif + +struct sctphdr { + uint16_t source; + uint16_t dest; + uint32_t vtag; + uint32_t checksum; +}; + +struct arp_hdr { + uint16_t htype; + uint16_t ptype; + uint8_t hlen; + uint8_t plen; + uint16_t oper; + uint8_t sha[6]; + uint32_t spa; + uint8_t tha[6]; + uint32_t tpa; +} __attribute__((__packed__)); + +struct ipv6hdr { + uint8_t version:4, + priority:4; + uint8_t flow_lbl[3]; + + uint16_t payload_len; + uint8_t nexthdr; + uint8_t hop_limit; + + struct in6_addr saddr; + struct in6_addr daddr; +}; + +struct vlan_hdr { + uint16_t vlan_id:12, + vlan_cfi:1, + vlan_pcp:3; + uint16_t vlan_type; +}; + +#ifndef IPPROTO_MH +# define IPPROTO_MH 135 +#endif + +struct ip6_mh { + uint8_t ip6mh_proto; + uint8_t ip6mh_hdrlen; + uint8_t ip6mh_type; + uint8_t ip6mh_reserved; + uint16_t ip6mh_cksum; + /* Followed by type specific messages */ + uint8_t data[0]; +}; + +/* Type 4 Routing header - well known as srh */ +struct ip6_rt4 { + uint8_t ip6r4_nxt; /* next header */ + uint8_t ip6r4_len; /* length in units of 8 octets */ + uint8_t ip6r4_type; /* always zero */ + uint8_t ip6r4_segleft; /* segments left */ + uint8_t ip6r4_last_entry; /* last entry */ + uint8_t ip6r4_flags; /* flags */ + uint16_t ip6r4_tag; /* tag */ + struct in6_addr ip6r4_segments[0]; /* SID list */ +}; + +/* RFC 3775 */ +#define IP6_MH_TYPE_BRR 0 /* Binding Refresh Request */ +#define IP6_MH_TYPE_HOTI 1 /* HOTI Message */ +#define IP6_MH_TYPE_COTI 2 /* COTI Message */ +#define IP6_MH_TYPE_HOT 3 /* HOT Message */ +#define IP6_MH_TYPE_COT 4 /* COT Message */ +#define IP6_MH_TYPE_BU 5 /* Binding Update */ +#define IP6_MH_TYPE_BACK 6 /* Binding ACK */ +#define IP6_MH_TYPE_BERROR 7 /* Binding Error */ +/* RFC 4068 */ +#define IP6_MH_TYPE_FBU 8 /* Fast Binding Update */ +#define IP6_MH_TYPE_FBACK 9 /* Fast Binding ACK */ +#define IP6_MH_TYPE_FNA 10 /* Fast Binding Advertisement */ +/* RFC 5096 */ +#define IP6_MH_TYPE_EMH 11 /* Experimental Mobility Header */ +/* RFC 5142 */ +#define IP6_MH_TYPE_HASM 12 /* Home Agent Switch Message */ + +#endif /* NFTABLES_HEADERS_H */ |