yuzu-emu/mbedtls
1
0
Fork 0
mirror of https://github.com/yuzu-emu/mbedtls.git synced 2024-11-25 15:15:47 +01:00
Code Issues Packages Projects Releases Wiki Activity

Add UDP support to the NET module

Browse Source
This commit is contained in:
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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
include/polarssl/net.h
View File

@ -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 );

85
library/net.c
View File

@ -160,9 +160,9 @@ static int net_prepare( void )
}
/*
* Initiate a TCP connection with host:port
* Initiate a TCP connection with host:port and the given protocol
*/
int net_connect( int *fd, const char *host, int port )
int net_connect( int *fd, const char *host, int port, int proto )
{
#if defined(POLARSSL_HAVE_IPV6)
int ret;
@ -176,11 +176,11 @@ int net_connect( int *fd, const char *host, int port )
memset( port_str, 0, sizeof( port_str ) );
snprintf( port_str, sizeof( port_str ), "%d", port );
/* Do name resolution with both IPv6 and IPv4, but only TCP */
/* Do name resolution with both IPv6 and IPv4 */
memset( &hints, 0, sizeof( hints ) );
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
hints.ai_protocol = IPPROTO_TCP;
hints.ai_socktype = proto == NET_PROTO_UDP ? SOCK_DGRAM : SOCK_STREAM;
hints.ai_protocol = proto == NET_PROTO_UDP ? IPPROTO_UDP : IPPROTO_TCP;
if( getaddrinfo( host, port_str, &hints, &addr_list ) != 0 )
return( POLARSSL_ERR_NET_UNKNOWN_HOST );
@ -224,7 +224,9 @@ int net_connect( int *fd, const char *host, int port )
if( ( server_host = gethostbyname( host ) ) == NULL )
return( POLARSSL_ERR_NET_UNKNOWN_HOST );
if( ( *fd = (int) socket( AF_INET, SOCK_STREAM, IPPROTO_IP ) ) < 0 )
if( ( *fd = (int) socket( AF_INET,
proto == NET_PROTO_UDP ? SOCK_DGRAM : SOCK_STREAM,
proto == NET_PROTO_UDP ? IPPROTO_UDP : IPPROTO_TCP ) ) < 0 )
return( POLARSSL_ERR_NET_SOCKET_FAILED );
memcpy( (void *) &server_addr.sin_addr,
@ -248,7 +250,7 @@ int net_connect( int *fd, const char *host, int port )
/*
* Create a listening socket on bind_ip:port
*/
int net_bind( int *fd, const char *bind_ip, int port )
int net_bind( int *fd, const char *bind_ip, int port, int proto )
{
#if defined(POLARSSL_HAVE_IPV6)
int n, ret;
@ -265,8 +267,8 @@ int net_bind( int *fd, const char *bind_ip, int port )
/* Bind to IPv6 and/or IPv4, but only in TCP */
memset( &hints, 0, sizeof( hints ) );
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
hints.ai_protocol = IPPROTO_TCP;
hints.ai_socktype = proto == NET_PROTO_UDP ? SOCK_DGRAM : SOCK_STREAM;
hints.ai_protocol = proto == NET_PROTO_UDP ? IPPROTO_UDP : IPPROTO_TCP;
if( bind_ip == NULL )
hints.ai_flags = AI_PASSIVE;
@ -301,11 +303,15 @@ int net_bind( int *fd, const char *bind_ip, int port )
continue;
}
if( listen( *fd, POLARSSL_NET_LISTEN_BACKLOG ) != 0 )
/* Listen only makes sense for TCP */
if( proto == NET_PROTO_TCP )
{
close( *fd );
ret = POLARSSL_ERR_NET_LISTEN_FAILED;
continue;
if( listen( *fd, POLARSSL_NET_LISTEN_BACKLOG ) != 0 )
{
close( *fd );
ret = POLARSSL_ERR_NET_LISTEN_FAILED;
continue;
}
}
/* I we ever get there, it's a success */
@ -326,7 +332,9 @@ int net_bind( int *fd, const char *bind_ip, int port )
if( ( ret = net_prepare() ) != 0 )
return( ret );
if( ( *fd = (int) socket( AF_INET, SOCK_STREAM, IPPROTO_IP ) ) < 0 )
if( ( *fd = (int) socket( AF_INET,
proto == NET_PROTO_UDP ? SOCK_DGRAM : SOCK_STREAM,
proto == NET_PROTO_UDP ? IPPROTO_UDP : IPPROTO_TCP ) ) < 0 )
return( POLARSSL_ERR_NET_SOCKET_FAILED );
n = 1;
@ -361,10 +369,14 @@ int net_bind( int *fd, const char *bind_ip, int port )
return( POLARSSL_ERR_NET_BIND_FAILED );
}
if( listen( *fd, POLARSSL_NET_LISTEN_BACKLOG ) != 0 )
/* Listen only makes sense for TCP */
if( proto == NET_PROTO_TCP )
{
close( *fd );
return( POLARSSL_ERR_NET_LISTEN_FAILED );
if( listen( *fd, POLARSSL_NET_LISTEN_BACKLOG ) != 0 )
{
close( *fd );
return( POLARSSL_ERR_NET_LISTEN_FAILED );
}
}
return( 0 );
@ -416,6 +428,9 @@ static int net_would_block( int fd )
*/
int net_accept( int bind_fd, int *client_fd, void *client_ip )
{
int ret;
int type;
#if defined(POLARSSL_HAVE_IPV6)
struct sockaddr_storage client_addr;
#else
@ -425,14 +440,35 @@ int net_accept( int bind_fd, int *client_fd, void *client_ip )
#if defined(__socklen_t_defined) || defined(_SOCKLEN_T) || \
defined(_SOCKLEN_T_DECLARED)
socklen_t n = (socklen_t) sizeof( client_addr );
socklen_t type_len = (socklen_t) sizeof( type );
#else
int n = (int) sizeof( client_addr );
int type_len = (int) sizeof( type );
#endif
*client_fd = (int) accept( bind_fd, (struct sockaddr *)
&client_addr, &n );
/* Is this a TCP or UDP socket? */
if( getsockopt( bind_fd, SOL_SOCKET, SO_TYPE, &type, &type_len ) != 0 ||
( type != SOCK_STREAM && type != SOCK_DGRAM ) )
{
return( POLARSSL_ERR_NET_ACCEPT_FAILED );
}
if( *client_fd < 0 )
if( type == SOCK_STREAM )
{
/* TCP: actual accept() */
ret = *client_fd = (int) accept( bind_fd,
(struct sockaddr *) &client_addr, &n );
}
else
{
/* UDP: wait for a message, but keep it in the queue */
char buf[1] = { 0 };
ret = recvfrom( bind_fd, buf, 0, MSG_PEEK,
(struct sockaddr *) &client_addr, &n );
}
if( ret < 0 )
{
if( net_would_block( bind_fd ) != 0 )
return( POLARSSL_ERR_NET_WANT_READ );
@ -440,6 +476,15 @@ int net_accept( int bind_fd, int *client_fd, void *client_ip )
return( POLARSSL_ERR_NET_ACCEPT_FAILED );
}
/* UDP: hijack the listening socket for communicating with the client */
if( type != SOCK_STREAM )
{
if( connect( bind_fd, (struct sockaddr *) &client_addr, n ) != 0 )
return( POLARSSL_ERR_NET_ACCEPT_FAILED );
*client_fd = bind_fd;
}
if( client_ip != NULL )
{
#if defined(POLARSSL_HAVE_IPV6)

2
programs/pkey/dh_client.c
View File

@ -135,7 +135,7 @@ int main( int argc, char *argv[] )
fflush( stdout );
if( ( ret = net_connect( &server_fd, SERVER_NAME,
SERVER_PORT ) ) != 0 )
SERVER_PORT, NET_PROTO_TCP ) ) != 0 )
{
printf( " failed\n ! net_connect returned %d\n\n", ret );
goto exit;

2
programs/pkey/dh_server.c
View File

@ -163,7 +163,7 @@ int main( int argc, char *argv[] )
printf( "\n . Waiting for a remote connection" );
fflush( stdout );
if( ( ret = net_bind( &listen_fd, NULL, SERVER_PORT ) ) != 0 )
if( ( ret = net_bind( &listen_fd, NULL, SERVER_PORT, NET_PROTO_TCP ) ) != 0 )
{
printf( " failed\n ! net_bind returned %d\n\n", ret );
goto exit;

2
programs/ssl/ssl_client1.c
View File

@ -140,7 +140,7 @@ int main( int argc, char *argv[] )
fflush( stdout );
if( ( ret = net_connect( &server_fd, SERVER_NAME,
SERVER_PORT ) ) != 0 )
SERVER_PORT, NET_PROTO_TCP ) ) != 0 )
{
printf( " failed\n ! net_connect returned %d\n\n", ret );
goto exit;

4
programs/ssl/ssl_client2.c
View File

@ -844,7 +844,7 @@ int main( int argc, char *argv[] )
fflush( stdout );
if( ( ret = net_connect( &server_fd, opt.server_addr,
opt.server_port ) ) != 0 )
opt.server_port, NET_PROTO_TCP ) ) != 0 )
{
printf( " failed\n ! net_connect returned -0x%x\n\n", -ret );
goto exit;
@ -1260,7 +1260,7 @@ reconnect:
}
if( ( ret = net_connect( &server_fd, opt.server_name,
opt.server_port ) ) != 0 )
opt.server_port , NET_PROTO_TCP) ) != 0 )
{
printf( " failed\n ! net_connect returned -0x%x\n\n", -ret );
goto exit;

2
programs/ssl/ssl_fork_server.c
View File

@ -179,7 +179,7 @@ int main( int argc, char *argv[] )
printf( " . Bind on https://localhost:4433/ ..." );
fflush( stdout );
if( ( ret = net_bind( &listen_fd, NULL, 4433 ) ) != 0 )
if( ( ret = net_bind( &listen_fd, NULL, 4433, NET_PROTO_TCP ) ) != 0 )
{
printf( " failed\n ! net_bind returned %d\n\n", ret );
goto exit;

2
programs/ssl/ssl_mail_client.c
View File

@ -574,7 +574,7 @@ int main( int argc, char *argv[] )
fflush( stdout );
if( ( ret = net_connect( &server_fd, opt.server_name,
opt.server_port ) ) != 0 )
opt.server_port, NET_PROTO_TCP ) ) != 0 )
{
printf( " failed\n ! net_connect returned %d\n\n", ret );
goto exit;

2
programs/ssl/ssl_pthread_server.c
View File

@ -445,7 +445,7 @@ int main( int argc, char *argv[] )
printf( " . Bind on https://localhost:4433/ ..." );
fflush( stdout );
if( ( ret = net_bind( &listen_fd, NULL, 4433 ) ) != 0 )
if( ( ret = net_bind( &listen_fd, NULL, 4433, NET_PROTO_TCP ) ) != 0 )
{
printf( " failed\n ! net_bind returned %d\n\n", ret );
goto exit;

2
programs/ssl/ssl_server.c
View File

@ -159,7 +159,7 @@ int main( int argc, char *argv[] )
printf( " . Bind on https://localhost:4433/ ..." );
fflush( stdout );
if( ( ret = net_bind( &listen_fd, NULL, 4433 ) ) != 0 )
if( ( ret = net_bind( &listen_fd, NULL, 4433, NET_PROTO_TCP ) ) != 0 )
{
printf( " failed\n ! net_bind returned %d\n\n", ret );
goto exit;

2
programs/ssl/ssl_server2.c
View File

@ -1246,7 +1246,7 @@ int main( int argc, char *argv[] )
fflush( stdout );
if( ( ret = net_bind( &listen_fd, opt.server_addr,
opt.server_port ) ) != 0 )
opt.server_port, NET_PROTO_TCP ) ) != 0 )
{
printf( " failed\n ! net_bind returned -0x%x\n\n", -ret );
goto exit;

4
programs/test/ssl_test.c
View File

@ -193,7 +193,7 @@ static int ssl_test( struct options *opt )
if( opt->opmode == OPMODE_CLIENT )
{
if( ( ret = net_connect( &client_fd, opt->server_name,
opt->server_port ) ) != 0 )
opt->server_port, NET_PROTO_TCP ) ) != 0 )
{
printf( " ! net_connect returned %d\n\n", ret );
return( ret );
@ -242,7 +242,7 @@ static int ssl_test( struct options *opt )
if( server_fd < 0 )
{
if( ( ret = net_bind( &server_fd, NULL,
opt->server_port ) ) != 0 )
opt->server_port, NET_PROTO_TCP ) ) != 0 )
{
printf( " ! net_bind returned %d\n\n", ret );
return( ret );

2
programs/x509/cert_app.c
View File

@ -402,7 +402,7 @@ int main( int argc, char *argv[] )
fflush( stdout );
if( ( ret = net_connect( &server_fd, opt.server_name,
opt.server_port ) ) != 0 )
opt.server_port, NET_PROTO_TCP ) ) != 0 )
{
printf( " failed\n ! net_connect returned %d\n\n", ret );
goto exit;