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 */ 64