#ifndef MINIX_NET_LWIP_PKTSOCK_H

#define MINIX_NET_LWIP_PKTSOCK_H

#include "mcast.h"

/* Packet-level socket, shared by UDP and RAW. */

struct pktsock {

struct ipsock pkt_ipsock; /* IP socket object, MUST be first */

struct pbuf *pkt_rcvhead; /* receive buffer, first packet */

struct pbuf **pkt_rcvtailp; /* receive buffer, last ptr-ptr */

size_t pkt_rcvlen; /* receive buffer, length in bytes */

struct mcast_head pkt_mcast; /* multicast membership list */

ip6_addr_p_t pkt_srcaddr; /* IPV6_PKTINFO: source address */

uint32_t pkt_ifindex; /* IPV6_KPTINFO: interface index */

};

#define pktsock_get_ipsock(pkt) (&(pkt)->pkt_ipsock)

#define pktsock_get_ifindex(pkt) ((pkt)->pkt_ifindex)

/* Options when sending packets. */

struct pktopt {

uint8_t pkto_flags; /* packet send flags (PKTOF_) */

uint8_t pkto_tos; /* type of service for the packet */

uint8_t pkto_ttl; /* time-to-live for the packet */

uint8_t pkto_mcast_ttl; /* time-to-live for multicast packet */

ip6_addr_p_t pkto_srcaddr; /* IPV6_PKTINFO: source address */

unsigned int pkto_ifindex; /* IPV6_PKTINFO: interface index */

};

#define PKTOF_TTL 0x01 /* send packet with custom TTL value */

#define PKTOF_TOS 0x02 /* send packet with custom TOS value */

#define PKTOF_PKTINFO 0x04 /* send packet with src addr, on if. */

int pktsock_socket(struct pktsock * pkt, int domain, size_t sndbuf,

size_t rcvbuf, struct sock ** sockp);

int pktsock_test_input(struct pktsock * pkt, struct pbuf * pbuf);

void pktsock_input(struct pktsock * pkt, struct pbuf * pbuf,

const ip_addr_t * srcaddr, uint16_t port);

int pktsock_get_pktinfo(struct pktsock * pkt, struct pktopt * pkto,

struct ifdev ** ifdevp, ip_addr_t * src_addrp);

int pktsock_get_ctl(struct pktsock * pkt, const struct sockdriver_data * ctl,

socklen_t ctl_len, struct pktopt * pkto);

int pktsock_get_data(struct pktsock * pkt, const struct sockdriver_data * data,

size_t len, struct pbuf * pbuf);

int pktsock_pre_recv(struct sock * sock, endpoint_t user_endpt, int flags);

int pktsock_recv(struct sock * sock, const struct sockdriver_data * data,

size_t len, size_t * off, const struct sockdriver_data * ctl,

socklen_t ctl_len, socklen_t * ctl_off, struct sockaddr * addr,

socklen_t * addr_len, endpoint_t user_endpt, int flags, size_t min,

int * rflags);

int pktsock_test_recv(struct sock * sock, size_t min, size_t * size);

void pktsock_set_mcaware(struct pktsock * pkt);

int pktsock_setsockopt(struct pktsock * pkt, int level, int name,

const struct sockdriver_data * data, socklen_t len,

struct ipopts * ipopts);

int pktsock_getsockopt(struct pktsock * pkt, int level, int name,

const struct sockdriver_data * data, socklen_t * len,

struct ipopts * ipopts);

void pktsock_shutdown(struct pktsock * pkt, unsigned int mask);

void pktsock_close(struct pktsock * pkt);

size_t pktsock_get_recvlen(struct pktsock * pkt);

#endif /* !MINIX_NET_LWIP_PKTSOCK_H */