--- libaitio/inc/aitio.h	2013/06/04 12:44:46	1.31
+++ libaitio/inc/aitio.h	2013/08/13 00:17:28	1.34
@@ -3,7 +3,7 @@
 *  by Michael Pounov <misho@elwix.org>
 *
 * $Author: misho $
-* $Id: aitio.h,v 1.31 2013/06/04 12:44:46 misho Exp $
+* $Id: aitio.h,v 1.34 2013/08/13 00:17:28 misho Exp $
 *
 **************************************************************************
 The ELWIX and AITNET software is distributed under the following
@@ -59,14 +59,33 @@ SUCH DAMAGE.
 #include <sys/un.h>
 #include <sys/uio.h>
 #include <net/if_dl.h>
+#include <net/bpf.h>
 #include <netinet/in.h>
+#include <elwix.h>
 
 
 #ifndef STRSIZ
-#define STRSIZ		256
+#define STRSIZ			256
 #endif
 
+#define IO_SOCK_ROLE_CLIENT	0
+#define IO_SOCK_ROLE_SERVER	1
 
+
+typedef struct {
+	int		sock_role;
+	int		sock_backq;
+	int		sock_type;
+	int		sock_proto;
+	int 		sock_fd;
+	sockaddr_t	sock_addr;
+
+	sockaddr_t	sock_peer;
+
+	ait_val_t	sock_buf;
+} sock_t;
+
+
 // io_GetErrno() Get error code of last operation
 int io_GetErrno();
 // io_GetError() Get error text of last operation
@@ -74,6 +93,35 @@ const char *io_GetError();
 
 
 /*
+ * ioInitSocket() - Init socket and allocate resources
+ *
+ * @role = Socket role
+ * @type = Socket type
+ * @proto = Socket protocol
+ * @addr = Bind to address
+ * @port = Bind to port
+ * @buflen = Socket buffer, optional if =0 == BUFSIZ
+ * return: NULL error or !=NULL created socket
+ */
+sock_t *ioInitSocket(int role, int type, int proto, 
+		const char *addr, unsigned short port, size_t buflen);
+/*
+ * ioCloseSocket() - Close socket and free resources
+ *
+ * @s = Socket
+ * return: none
+ */
+void ioCloseSocket(sock_t ** __restrict s);
+/*
+ * ioUpSocket() - Setup socket for use
+ *
+ * @s = Socket
+ * @arg = Server role = listen backlog queue and Client role = peer address
+ * return: -1 error or 0 ok
+ */
+int ioUpSocket(sock_t * __restrict s, void *arg);
+
+/*
  * ioPromptRead() - Read data from input h[0] with prompt to output h[1]
  *
  * @h = file handles h[0] = input, h[1] = output, if NULL use stdin, stdout
@@ -385,6 +433,58 @@ FILE *io_fd2buf(int fd, const char *mode);
  * return: -1 error or open file handle
  */
 int io_dumbFile(const char *csFile, int mode, off_t size);
+
+
+/*
+ * io_get1stiface() - Get first interface of host
+ *
+ * @szIface = interface string buffer
+ * @iflen = size of interface buffer
+ * return: -1 error or 0 ok
+ */
+int io_get1stiface(char *szIface, int iflen);
+/*
+ * io_etherOpen() - Open BPF interface to device
+ *
+ * @csIface = interface name
+ * @flags = open flags
+ * @whdr = with complete headers
+ * @wdlt = with data link type
+ * @buflen = buffer length
+ * @zcbuf = zero copy buffer, if BPF supports it and isn't NULL
+ * return: -1 error or >-1 bpf handle
+ */
+int io_etherOpen(const char *csIface, int flags, int whdr, int wdlt, 
+		unsigned int *buflen, void **zcbuf);
+/*
+ * io_etherClose() - Close BPF interface
+ *
+ * @eth = bpf handle
+ * @zcbuf = zero copy buffer, if BPF supports it and isn't NULL
+ * return: none
+ */
+void io_etherClose(int eth, void **zcbuf);
+
+/*
+ * io_etherSend() - Send packet to bpf
+ *
+ * @eth = bpf handle
+ * @buf = buffer
+ * @buflen = buffer length
+ * return: -1 error or !=-1 written bytes
+ */
+ssize_t io_etherSend(int eth, const void *buf, size_t buflen);
+/*
+ * io_etherRecv() - Receive packet from bpf
+ *
+ * @eth = bpf handle
+ * @buf = buffer
+ * @buflen = buffer length
+ * @zcbuf = zero copy buffer, if BPF supports it and isn't NULL
+ * return: -1 error or !=-1 readed bytes
+ */
+ssize_t io_etherRecv(int eth, void * __restrict buf, 
+		size_t buflen, void * __restrict zcbuf);
 
 
 #endif