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Add UDP support to the NET module

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Manuel Pégourié-Gonnard 2014-03-23 17:38:16 +01:00 • committed by Paul Bakker
parent d6b721c7ee
commit f5a1312eaa
13 changed files with 97 additions and 38 deletions
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24
include/polarssl/net.h
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@ -43,38 +43,48 @@
#define POLARSSL_NET_LISTEN_BACKLOG 10 /**< The backlog that listen() should use. */
#define NET_PROTO_TCP 0 /**< The TCP transport protocol */
#define NET_PROTO_UDP 1 /**< The UDP transport protocol */
#ifdef __cplusplus
extern "C" {
#endif
/**
* \brief Initiate a TCP connection with host:port
* \brief Initiate a connection with host:port in the given protocol
*
* \param fd Socket to use
* \param host Host to connect to
* \param port Port to connect to
* \param proto Protocol: NET_PROTO_TCP or NET_PROTO_UDP
*
* \return 0 if successful, or one of:
* POLARSSL_ERR_NET_SOCKET_FAILED,
* POLARSSL_ERR_NET_UNKNOWN_HOST,
* POLARSSL_ERR_NET_CONNECT_FAILED
*
* \note Sets the socket in connected mode even with UDP.
*/
int net_connect( int *fd, const char *host, int port );
int net_connect( int *fd, const char *host, int port, int proto );
/**
* \brief Create a listening socket on bind_ip:port.
* If bind_ip == NULL, all interfaces are binded.
* \brief Create a receiving socket on bind_ip:port in the chosen
* protocol. If bind_ip == NULL, all interfaces are bound.
*
* \param fd Socket to use
* \param bind_ip IP to bind to, can be NULL
* \param port Port number to use
* \param proto Protocol: NET_PROTO_TCP or NET_PROTO_UDP
*
* \return 0 if successful, or one of:
* POLARSSL_ERR_NET_SOCKET_FAILED,
* POLARSSL_ERR_NET_BIND_FAILED,
* POLARSSL_ERR_NET_LISTEN_FAILED
*
* \note Regardless of the protocol, opens the sockets and binds it.
* In addition, make the socket listening if protocol is TCP.
*/
int net_bind( int *fd, const char *bind_ip, int port );
int net_bind( int *fd, const char *bind_ip, int port, int proto );
/**
* \brief Accept a connection from a remote client
@ -87,6 +97,10 @@ int net_bind( int *fd, const char *bind_ip, int port );
* \return 0 if successful, POLARSSL_ERR_NET_ACCEPT_FAILED, or
* POLARSSL_ERR_NET_WANT_READ is bind_fd was set to
* non-blocking and accept() is blocking.
*
* \note With UDP, connects the bind_fd to the client and just copy
* its descriptor to client_fd. New clients will not be able
* to connect until you close the socket and bind a new one.
*/
int net_accept( int bind_fd, int *client_fd, void *client_ip );