diff options
Diffstat (limited to 'nuttx/include/net/uip/uip.h')
| -rw-r--r-- | nuttx/include/net/uip/uip.h | 100 |
1 files changed, 53 insertions, 47 deletions
diff --git a/nuttx/include/net/uip/uip.h b/nuttx/include/net/uip/uip.h index 65a772e60..b03233ed3 100644 --- a/nuttx/include/net/uip/uip.h +++ b/nuttx/include/net/uip/uip.h @@ -48,8 +48,9 @@ * Included Files ****************************************************************************/ -#include <sys/types.h> #include <nuttx/config.h> +#include <sys/types.h> +#include <queue.h> #include <arpa/inet.h> #include <net/uip/uipopt.h> @@ -158,12 +159,11 @@ typedef uip_ip4addr_t uip_ipaddr_t; struct uip_conn { + dq_entry_t node; /* Implements a doubly linked list */ uip_ipaddr_t ripaddr; /* The IP address of the remote host. */ - uint16 lport; /* The local TCP port, in network byte order. */ uint16 rport; /* The local remote TCP port, in network byte order. */ - uint8 rcv_nxt[4]; /* The sequence number that we expect to receive next. */ uint8 snd_nxt[4]; /* The sequence number that was last sent by @@ -188,6 +188,7 @@ struct uip_conn */ void *private; + void (*callback)(void *private); }; #ifdef CONFIG_NET_UDP @@ -195,16 +196,16 @@ struct uip_conn struct uip_udp_conn { + dq_entry_t node; /* Implements a doubly linked list */ uip_ipaddr_t ripaddr; /* The IP address of the remote peer. */ uint16 lport; /* The local port number in network byte order. */ uint16 rport; /* The remote port number in network byte order. */ uint8 ttl; /* Default time-to-live. */ - /* Higher level logic can retain application specific information - * in the following: - */ + /* Defines the UDP callback */ void *private; + void (*callback)(void *private); }; #endif /* CONFIG_NET_UDP */ @@ -613,9 +614,6 @@ void uip_setipid(uint16 id); */ extern void uip_interrupt_event(void); -#ifdef CONFIG_NET_UDP -extern void uip_interrupt_udp_event(void); -#endif /* Find a free connection structure and allocate it for use. This is * normally something done by the implementation of the socket() API @@ -635,6 +633,34 @@ extern void uip_tcpfree(struct uip_conn *conn); extern void uip_udpfree(struct uip_udp_conn *conn); #endif +/* Bind a TCP connection to a local address */ + +#ifdef CONFIG_NET_IPv6 +extern int uip_tcpbind(struct uip_conn *conn, const struct sockaddr_in6 *addr); +#else +extern int uip_tcpbind(struct uip_conn *conn, const struct sockaddr_in *addr); +#endif + +/* This function implements the UIP specific parts of the standard + * TCP connect() operation: It connects to a remote host using TCP. + * + * This function is used to start a new connection to the specified + * port on the specied host. It uses the connection structure that was + * allocated by a preceding socket() call. It sets the connection to + * the SYN_SENT state and sets the retransmission timer to 0. This will + * cause a TCP SYN segment to be sent out the next time this connection + * is periodically processed, which usually is done within 0.5 seconds + * after the call to uip_tcpconnect(). + * + * This function is called from normal user level code. + */ + +#ifdef CONFIG_NET_IPv6 +extern int uip_tcpconnect(struct uip_conn *conn, const struct sockaddr_in6 *addr); +#else +extern int uip_tcpconnect(struct uip_conn *conn, const struct sockaddr_in *addr); +#endif + /* Start listening to the specified port. * * Note: Since this function expects the port number in network byte @@ -848,51 +874,31 @@ void uip_send(const void *data, int len); #define uip_mss() (uip_conn->mss) -/* Set up a new UDP connection. - * - * This function sets up a new UDP connection. The function will +/* Bind a UDP connection to a local address */ + +#ifdef CONFIG_NET_IPv6 +extern int uip_udpbind(struct uip_udp_conn *conn, const struct sockaddr_in6 *addr); +#else +extern int uip_udpbind(struct uip_udp_conn *conn, const struct sockaddr_in *addr); +#endif + +/* This function sets up a new UDP connection. The function will * automatically allocate an unused local port for the new * connection. However, another port can be chosen by using the - * uip_udp_bind() call, after the uip_udp_new() function has been + * uip_udpbind() call, after the uip_udpconnect() function has been * called. * - * Example: + * This function is called as part of the implementation of sendto + * and recvfrom. * - * uip_ipaddr_t addr; - * struct uip_udp_conn *c; - * - * uip_ipaddr(&addr, 192,168,2,1); - * c = uip_udp_new(&addr, HTONS(12345)); - * if(c != NULL) { - * uip_udp_bind(c, HTONS(12344)); - * } - * - * ripaddr The IP address of the remote host. - * - * rport The remote port number in network byte order. - * - * Return: The uip_udp_conn structure for the new connection or NULL - * if no connection could be allocated. + * addr The address of the remote host. */ -struct uip_udp_conn *uip_udp_new(uip_ipaddr_t *ripaddr, uint16 rport); - -/* Removed a UDP connection. - * - * conn A pointer to the uip_udp_conn structure for the connection. - */ - -#define uip_udp_remove(conn) (conn)->lport = 0 - -/* Bind a UDP connection to a local port. - * - * conn A pointer to the uip_udp_conn structure for the - * connection. - * - * port The local port number, in network byte order. - */ - -#define uip_udp_bind(conn, port) (conn)->lport = port +#ifdef CONFIG_NET_IPv6 +extern int uip_udpconnect(struct uip_udp_conn *conn, const struct sockaddr_in6 *addr); +#else +extern int uip_udpconnect(struct uip_udp_conn *conn, const struct sockaddr_in *addr); +#endif /* Send a UDP datagram of length len on the current connection. * |