Diff: include/pico_protocol.h

Revision:

2:540f6e142d59

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/include/pico_protocol.h	Sat Aug 03 13:16:14 2013 +0000
@@ -0,0 +1,95 @@
+/*********************************************************************
+PicoTCP. Copyright (c) 2012 TASS Belgium NV. Some rights reserved.
+See LICENSE and COPYING for usage.
+
+*********************************************************************/
+#ifndef _INCLUDE_PICO_PROTOCOL 
+#define _INCLUDE_PICO_PROTOCOL 
+#include <stdint.h>
+#include "pico_queue.h"
+
+#define PICO_LOOP_DIR_IN   1
+#define PICO_LOOP_DIR_OUT  2
+
+enum pico_layer {
+  PICO_LAYER_DATALINK = 2,  /* Ethernet only. */
+  PICO_LAYER_NETWORK = 3,   /* IPv4, IPv6, ARP. Arp is there because it communicates with L2 */
+  PICO_LAYER_TRANSPORT = 4, /* UDP, TCP, ICMP */
+  PICO_LAYER_SOCKET = 5     /* Socket management */
+};
+
+enum pico_err_e {
+  PICO_ERR_NOERR = 0,
+  PICO_ERR_EPERM,
+  PICO_ERR_ENOENT,
+  /* ... */
+  PICO_ERR_EINTR = 4,
+  PICO_ERR_EIO,
+  PICO_ERR_ENXIO, 
+  /* ... */
+  PICO_ERR_EAGAIN = 11,
+  PICO_ERR_ENOMEM,
+  PICO_ERR_EACCESS,
+  PICO_ERR_EFAULT,
+  /* ... */
+  PICO_ERR_EBUSY = 16,
+  PICO_ERR_EEXIST = 17,
+  /* ... */
+  PICO_ERR_EINVAL = 22,
+  /* ... */
+  PICO_ERR_EPROTO = 71,
+  PICO_ERR_ENOPROTOOPT = 92,
+  PICO_ERR_EPROTONOSUPPORT = 93,
+
+  /* ... */
+  PICO_ERR_EADDRINUSE = 98,
+  PICO_ERR_EADDRNOTAVAIL,
+  PICO_ERR_ENETUNREACH,
+
+  /* ... */
+  PICO_ERR_ECONNRESET = 104,
+
+  /* ... */
+  PICO_ERR_EISCONN = 106,
+  PICO_ERR_ENOTCONN,
+  PICO_ERR_ESHUTDOWN,
+  /* ... */
+  PICO_ERR_ETIMEDOUT = 110,
+  PICO_ERR_ECONNREFUSED = 111,
+  PICO_ERR_EHOSTDOWN,
+  PICO_ERR_EHOSTUNREACH,
+  /* ... */
+  PICO_ERR_EOPNOTSUPP = 122,
+
+};
+
+typedef enum pico_err_e pico_err_t;
+extern volatile pico_err_t pico_err;
+
+#define IS_IPV6(f) ((((uint8_t *)(f->net_hdr))[0] & 0xf0) == 0x60)
+#define IS_IPV4(f) ((((uint8_t *)(f->net_hdr))[0] & 0xf0) == 0x40)
+
+#define MAX_PROTOCOL_NAME 16
+
+struct pico_protocol {
+  char name[MAX_PROTOCOL_NAME];
+  uint32_t hash;
+  enum pico_layer layer;
+  int proto_number;
+  struct pico_queue *q_in;
+  struct pico_queue *q_out;
+  struct pico_frame *(*alloc)(struct pico_protocol *self, int size); /* Frame allocation. */
+  int (*push) (struct pico_protocol *self, struct pico_frame *p);    /* Push function, for active outgoing pkts from above */
+  int (*process_out)(struct pico_protocol *self, struct pico_frame *p); /* Send loop. */
+  int (*process_in)(struct pico_protocol *self, struct pico_frame *p); /* Recv loop. */
+};
+
+int pico_protocols_loop(int loop_score);
+void pico_protocol_init(struct pico_protocol *p);
+
+int pico_protocol_datalink_loop(int loop_score, int direction);
+int pico_protocol_network_loop(int loop_score, int direction);
+int pico_protocol_transport_loop(int loop_score, int direction);
+int pico_protocol_socket_loop(int loop_score, int direction);
+
+#endif