minix/net/lwip/pktsock.h

   1 #ifndef MINIX_NET_LWIP_PKTSOCK_H
   2 #define MINIX_NET_LWIP_PKTSOCK_H
   3
   4 #include "mcast.h"
   5
   6 /* Packet-level socket, shared by UDP and RAW. */
   7 struct pktsock {
   8         struct ipsock pkt_ipsock;       /* IP socket object, MUST be first */
   9         struct pbuf *pkt_rcvhead;       /* receive buffer, first packet */
  10         struct pbuf **pkt_rcvtailp;     /* receive buffer, last ptr-ptr */
  11         size_t pkt_rcvlen;              /* receive buffer, length in bytes */
  12         struct mcast_head pkt_mcast;    /* multicast membership list */
  13         ip6_addr_p_t pkt_srcaddr;       /* IPV6_PKTINFO: source address */
  14         uint32_t pkt_ifindex;           /* IPV6_KPTINFO: interface index */
  15 };
  16
  17 #define pktsock_get_ipsock(pkt)         (&(pkt)->pkt_ipsock)
  18 #define pktsock_get_ifindex(pkt)        ((pkt)->pkt_ifindex)
  19
  20 /* Options when sending packets. */
  21 struct pktopt {
  22         uint8_t pkto_flags;             /* packet send flags (PKTOF_) */
  23         uint8_t pkto_tos;               /* type of service for the packet */
  24         uint8_t pkto_ttl;               /* time-to-live for the packet */
  25         uint8_t pkto_mcast_ttl;         /* time-to-live for multicast packet */
  26         ip6_addr_p_t pkto_srcaddr;      /* IPV6_PKTINFO: source address */
  27         unsigned int pkto_ifindex;      /* IPV6_PKTINFO: interface index */
  28 };
  29
  30 #define PKTOF_TTL               0x01    /* send packet with custom TTL value */
  31 #define PKTOF_TOS               0x02    /* send packet with custom TOS value */
  32 #define PKTOF_PKTINFO           0x04    /* send packet with src addr, on if. */
  33
  34 int pktsock_socket(struct pktsock * pkt, int domain, size_t sndbuf,
  35         size_t rcvbuf, struct sock ** sockp);
  36 int pktsock_test_input(struct pktsock * pkt, struct pbuf * pbuf);
  37 void pktsock_input(struct pktsock * pkt, struct pbuf * pbuf,
  38         const ip_addr_t * srcaddr, uint16_t port);
  39 int pktsock_get_pktinfo(struct pktsock * pkt, struct pktopt * pkto,
  40         struct ifdev ** ifdevp, ip_addr_t * src_addrp);
  41 int pktsock_get_ctl(struct pktsock * pkt, const struct sockdriver_data * ctl,
  42         socklen_t ctl_len, struct pktopt * pkto);
  43 int pktsock_get_data(struct pktsock * pkt, const struct sockdriver_data * data,
  44         size_t len, struct pbuf * pbuf);
  45 int pktsock_pre_recv(struct sock * sock, endpoint_t user_endpt, int flags);
  46 int pktsock_recv(struct sock * sock, const struct sockdriver_data * data,
  47         size_t len, size_t * off, const struct sockdriver_data * ctl,
  48         socklen_t ctl_len, socklen_t * ctl_off, struct sockaddr * addr,
  49         socklen_t * addr_len, endpoint_t user_endpt, int flags, size_t min,
  50         int * rflags);
  51 int pktsock_test_recv(struct sock * sock, size_t min, size_t * size);
  52 void pktsock_set_mcaware(struct pktsock * pkt);
  53 int pktsock_setsockopt(struct pktsock * pkt, int level, int name,
  54         const struct sockdriver_data * data, socklen_t len,
  55         struct ipopts * ipopts);
  56 int pktsock_getsockopt(struct pktsock * pkt, int level, int name,
  57         const struct sockdriver_data * data, socklen_t * len,
  58         struct ipopts * ipopts);
  59 void pktsock_shutdown(struct pktsock * pkt, unsigned int mask);
  60 void pktsock_close(struct pktsock * pkt);
  61 size_t pktsock_get_recvlen(struct pktsock * pkt);
  62
  63 #endif /* !MINIX_NET_LWIP_PKTSOCK_H */