#include <nftables.h>
#include <datatype.h>
#include <linux/netfilter/nf_tables.h>

Include dependency graph for proto.h:

This graph shows which files directly or indirectly include this file:

Data Structures
struct	proto_hdr_template
	struct proto_hdr_template - protocol header field description More...

struct	proto_desc

struct	hook_proto_desc
	struct hook_proto_desc - description of protocol constraints imposed by hook family More...

struct	dev_proto_desc
	struct dev_proto_desc - description of device LL protocol More...

struct	proto_ctx
	struct proto_ctx - protocol context More...

Macros
#define	PROTO_BASE_MAX (__PROTO_BASE_MAX - 1)

#define	PROTO_HDR_TEMPLATE(__token, __dtype,__byteorder, __offset, __len)

#define	PROTO_META_TEMPLATE(__token, __dtype, __key, __len)

#define	PROTO_UPPER_MAX 16

#define	PROTO_HDRS_MAX 20

Enumerations
enum	proto_bases { PROTO_BASE_INVALID, PROTO_BASE_LL_HDR, PROTO_BASE_NETWORK_HDR, PROTO_BASE_TRANSPORT_HDR, __PROTO_BASE_MAX }
	enum proto_bases - protocol bases More...

Variables
const char *	proto_base_names []

const char *	proto_base_tokens []

: protocol name
struct proto_desc - protocol header description : header base : key of template containing upper layer protocol description : link to upper layer protocol descriptions indexed by protocol value : header templates
#define	PROTO_LINK(__num, __desc) { .num = (__num), .desc = (__desc), }

#define	HOOK_PROTO_DESC(__base, __desc) { .base = (__base), .desc = (__desc), }

#define	DEV_PROTO_DESC(__type, __desc) { .type = (__type), .desc = (__desc), }

enum	eth_hdr_fields { ETHHDR_INVALID, ETHHDR_DADDR, ETHHDR_SADDR, ETHHDR_TYPE }

enum	vlan_hdr_fields { VLANHDR_INVALID, VLANHDR_VID, VLANHDR_CFI, VLANHDR_PCP, VLANHDR_TYPE }

enum	arp_hdr_fields { ARPHDR_INVALID, ARPHDR_HRD, ARPHDR_PRO, ARPHDR_HLN, ARPHDR_PLN, ARPHDR_OP }

enum	ip_hdr_fields { IPHDR_INVALID, IPHDR_VERSION, IPHDR_HDRLENGTH, IPHDR_TOS, IPHDR_LENGTH, IPHDR_ID, IPHDR_FRAG_OFF, IPHDR_TTL, IPHDR_PROTOCOL, IPHDR_CHECKSUM, IPHDR_SADDR, IPHDR_DADDR }

enum	icmp_hdr_fields { ICMPHDR_INVALID, ICMPHDR_TYPE, ICMPHDR_CODE, ICMPHDR_CHECKSUM, ICMPHDR_ID, ICMPHDR_SEQ, ICMPHDR_GATEWAY, ICMPHDR_MTU }

enum	icmp6_hdr_fields { ICMP6HDR_INVALID, ICMP6HDR_TYPE, ICMP6HDR_CODE, ICMP6HDR_CHECKSUM, ICMP6HDR_PPTR, ICMP6HDR_MTU, ICMP6HDR_ID, ICMP6HDR_SEQ, ICMP6HDR_MAXDELAY }

enum	ip6_hdr_fields { IP6HDR_INVALID, IP6HDR_VERSION, IP6HDR_PRIORITY, IP6HDR_FLOWLABEL, IP6HDR_LENGTH, IP6HDR_NEXTHDR, IP6HDR_HOPLIMIT, IP6HDR_SADDR, IP6HDR_DADDR, IP6HDR_PROTOCOL }

enum	ah_hdr_fields { AHHDR_INVALID, AHHDR_NEXTHDR, AHHDR_HDRLENGTH, AHHDR_RESERVED, AHHDR_SPI, AHHDR_SEQUENCE }

enum	esp_hdr_fields { ESPHDR_INVALID, ESPHDR_SPI, ESPHDR_SEQUENCE }

enum	comp_hdr_fields { COMPHDR_INVALID, COMPHDR_NEXTHDR, COMPHDR_FLAGS, COMPHDR_CPI }

enum	udp_hdr_fields { UDPHDR_INVALID, UDPHDR_SPORT, UDPHDR_DPORT, UDPHDR_LENGTH, UDPHDR_CSUMCOV = UDPHDR_LENGTH, UDPHDR_CHECKSUM }

enum	tcp_hdr_fields { TCPHDR_INVALID, TCPHDR_UNSPEC = TCPHDR_INVALID, TCPHDR_SPORT, TCPHDR_DPORT, TCPHDR_SEQ, TCPHDR_ACKSEQ, TCPHDR_DOFF, TCPHDR_RESERVED, TCPHDR_FLAGS, TCPHDR_WINDOW, TCPHDR_CHECKSUM, TCPHDR_URGPTR }

enum	dccp_hdr_fields { DCCPHDR_INVALID, DCCPHDR_SPORT, DCCPHDR_DPORT, DCCPHDR_TYPE }

enum	sctp_hdr_fields { SCTPHDR_INVALID, SCTPHDR_SPORT, SCTPHDR_DPORT, SCTPHDR_VTAG, SCTPHDR_CHECKSUM }

const struct hook_proto_desc	hook_proto_desc []

const struct proto_desc	proto_icmp

const struct proto_desc	proto_ah

const struct proto_desc	proto_esp

const struct proto_desc	proto_comp

const struct proto_desc	proto_udp

const struct proto_desc	proto_udplite

const struct proto_desc	proto_tcp

const struct proto_desc	proto_dccp

const struct proto_desc	proto_sctp

const struct proto_desc	proto_icmp6

const struct proto_desc	proto_ip

const struct proto_desc	proto_ip6

const struct proto_desc	proto_inet

const struct proto_desc	proto_inet_service

const struct proto_desc	proto_arp

const struct proto_desc	proto_vlan

const struct proto_desc	proto_eth

const struct proto_desc	proto_unknown

const struct proto_hdr_template	proto_unknown_template

int	proto_dev_type (const struct proto_desc desc, uint16_t res)
	proto_dev_type - return arphrd type linking a device and a protocol together More...

const struct proto_desc *	proto_dev_desc (uint16_t type)
	proto_dev_desc - return protocol description for an arphrd type More...

void	proto_ctx_init (struct proto_ctx *ctx, unsigned int family)
	proto_ctx_init - initialize protocol context for a given hook family More...

void	proto_ctx_update (struct proto_ctx ctx, enum proto_bases base, const struct location loc, const struct proto_desc *desc)
	proto_ctx_update: update protocol context for given protocol base More...

const struct proto_desc *	proto_find_upper (const struct proto_desc *base, unsigned int num)
	proto_find_upper - find higher layer protocol description by protocol value linking it to the lower layer protocol More...

int	proto_find_num (const struct proto_desc base, const struct proto_desc desc)
	proto_find_num - return protocol number linking two protocols together More...

Macro Definition Documentation

#define DEV_PROTO_DESC	(	__type,
		__desc
	)	{ .type = (__type), .desc = (__desc), }

#define HOOK_PROTO_DESC	(	__base,
		__desc
	)	{ .base = (__base), .desc = (__desc), }

#define PROTO_BASE_MAX (__PROTO_BASE_MAX - 1)

#define PROTO_HDR_TEMPLATE	(	__token,
		__dtype,
		__byteorder,
		__offset,
		__len
	)

Value:

{                               \
        .token      = (__token),                \
        .dtype      = (__dtype),                \
        .byteorder  = (__byteorder),            \
        .offset     = (__offset),               \
        .len        = (__len),              \
    }

#define PROTO_HDRS_MAX 20

#define PROTO_LINK	(	__num,
		__desc
	)	{ .num = (__num), .desc = (__desc), }

#define PROTO_META_TEMPLATE	(	__token,
		__dtype,
		__key,
		__len
	)

Value:

{                               \
        .token      = (__token),                \
        .dtype      = (__dtype),                \
        .meta_key   = (__key),              \
        .len        = (__len),              \
    }

#define PROTO_UPPER_MAX 16

Enumeration Type Documentation

enum ah_hdr_fields

Enumerator
AHHDR_INVALID
AHHDR_NEXTHDR
AHHDR_HDRLENGTH
AHHDR_RESERVED
AHHDR_SPI
AHHDR_SEQUENCE

enum arp_hdr_fields

Enumerator
ARPHDR_INVALID
ARPHDR_HRD
ARPHDR_PRO
ARPHDR_HLN
ARPHDR_PLN
ARPHDR_OP

enum comp_hdr_fields

Enumerator
COMPHDR_INVALID
COMPHDR_NEXTHDR
COMPHDR_FLAGS
COMPHDR_CPI

enum dccp_hdr_fields

Enumerator
DCCPHDR_INVALID
DCCPHDR_SPORT
DCCPHDR_DPORT
DCCPHDR_TYPE

enum esp_hdr_fields

Enumerator
ESPHDR_INVALID
ESPHDR_SPI
ESPHDR_SEQUENCE

enum eth_hdr_fields

Enumerator
ETHHDR_INVALID
ETHHDR_DADDR
ETHHDR_SADDR
ETHHDR_TYPE

enum icmp6_hdr_fields

Enumerator
ICMP6HDR_INVALID
ICMP6HDR_TYPE
ICMP6HDR_CODE
ICMP6HDR_CHECKSUM
ICMP6HDR_PPTR
ICMP6HDR_MTU
ICMP6HDR_ID
ICMP6HDR_SEQ
ICMP6HDR_MAXDELAY

enum icmp_hdr_fields

Enumerator
ICMPHDR_INVALID
ICMPHDR_TYPE
ICMPHDR_CODE
ICMPHDR_CHECKSUM
ICMPHDR_ID
ICMPHDR_SEQ
ICMPHDR_GATEWAY
ICMPHDR_MTU

enum ip6_hdr_fields

Enumerator
IP6HDR_INVALID
IP6HDR_VERSION
IP6HDR_PRIORITY
IP6HDR_FLOWLABEL
IP6HDR_LENGTH
IP6HDR_NEXTHDR
IP6HDR_HOPLIMIT
IP6HDR_SADDR
IP6HDR_DADDR
IP6HDR_PROTOCOL

enum ip_hdr_fields

Enumerator
IPHDR_INVALID
IPHDR_VERSION
IPHDR_HDRLENGTH
IPHDR_TOS
IPHDR_LENGTH
IPHDR_ID
IPHDR_FRAG_OFF
IPHDR_TTL
IPHDR_PROTOCOL
IPHDR_CHECKSUM
IPHDR_SADDR
IPHDR_DADDR

enum proto_bases

enum proto_bases - protocol bases

: uninitialised, does not happen : link layer header : network layer header : transport layer header

Enumerator
PROTO_BASE_INVALID
PROTO_BASE_LL_HDR
PROTO_BASE_NETWORK_HDR
PROTO_BASE_TRANSPORT_HDR
__PROTO_BASE_MAX

enum sctp_hdr_fields

Enumerator
SCTPHDR_INVALID
SCTPHDR_SPORT
SCTPHDR_DPORT
SCTPHDR_VTAG
SCTPHDR_CHECKSUM

enum tcp_hdr_fields

Enumerator
TCPHDR_INVALID
TCPHDR_UNSPEC
TCPHDR_SPORT
TCPHDR_DPORT
TCPHDR_SEQ
TCPHDR_ACKSEQ
TCPHDR_DOFF
TCPHDR_RESERVED
TCPHDR_FLAGS
TCPHDR_WINDOW
TCPHDR_CHECKSUM
TCPHDR_URGPTR