alexb/lib/lwip/contrib/src/include/ipv6/lwip/ip.h File Reference

#include "lwip/opt.h"
#include "lwip/def.h"
#include "lwip/pbuf.h"
#include "lwip/ip_addr.h"
#include "lwip/err.h"
#include "lwip/netif.h"

Classes
struct	ip_hdr
Defines
#define	IP_HLEN   40
#define	IP_PROTO_ICMP   58
#define	IP_PROTO_UDP   17
#define	IP_PROTO_UDPLITE   136
#define	IP_PROTO_TCP   6
#define	IP_HDRINCL   NULL
#define	IP_PCB_ADDRHINT
#define	IP_PCB
#define	IPH_PROTO(hdr)   (iphdr->nexthdr)
#define	ip_current_netif()   NULL
#define	ip_current_header()   NULL
Functions
void	ip_init (void)
struct netif *	ip_route (struct ip_addr *dest)
void	ip_input (struct pbuf *p, struct netif *inp)
	This function is called by the network interface device driver when an IP packet is received.
err_t	ip_output (struct pbuf *p, struct ip_addr *src, struct ip_addr *dest, u8_t ttl, u8_t proto)
err_t	ip_output_if (struct pbuf *p, struct ip_addr *src, struct ip_addr *dest, u8_t ttl, u8_t proto, struct netif *netif)

---

Define Documentation

#define ip_current_header

(

)

NULL

#define ip_current_netif

(

)

NULL

#define IP_HDRINCL   NULL

#define IP_HLEN   40

#define IP_PCB

Value:

struct ip_addr local_ip; \
  struct ip_addr remote_ip; \
   /* Socket options */  \
  u16_t so_options;      \
   /* Type Of Service */ \
  u8_t tos;              \
  /* Time To Live */     \
  u8_t ttl;              \
  /* link layer address resolution hint */ \
  IP_PCB_ADDRHINT

#define IP_PCB_ADDRHINT

#define IP_PROTO_ICMP   58

#define IP_PROTO_TCP   6

#define IP_PROTO_UDP   17

#define IP_PROTO_UDPLITE   136

#define IPH_PROTO

(

hdr

)

(iphdr->nexthdr)

---

Function Documentation

void ip_init

(

void

)

void ip_input	(	struct pbuf *	p,
		struct netif *	inp
	)

This function is called by the network interface device driver when an IP packet is received.

The function does the basic checks of the IP header such as packet size being at least larger than the header size etc. If the packet was not destined for us, the packet is forwarded (using ip_forward). The IP checksum is always checked.

Finally, the packet is sent to the upper layer protocol input function.

Parameters:

	p	the received IP packet (p->payload points to IP header)
	inp	the netif on which this packet was received

Returns:

ERR_OK if the packet was processed (could return ERR_* if it wasn't processed, but currently always returns ERR_OK)

err_t ip_output	(	struct pbuf *	p,
		struct ip_addr *	src,
		struct ip_addr *	dest,
		u8_t	ttl,
		u8_t	proto
	)

err_t ip_output_if	(	struct pbuf *	p,
		struct ip_addr *	src,
		struct ip_addr *	dest,
		u8_t	ttl,
		u8_t	proto,
		struct netif *	netif
	)

struct netif* ip_route

(

struct ip_addr *

dest

)

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