98 lines
3.0 KiB
C
98 lines
3.0 KiB
C
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/*********************************************************************
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PicoTCP. Copyright (c) 2012-2017 Altran Intelligent Systems. Some rights reserved.
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See COPYING, LICENSE.GPLv2 and LICENSE.GPLv3 for usage.
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*********************************************************************/
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#ifndef INCLUDE_PICO_PROTOCOL
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#define INCLUDE_PICO_PROTOCOL
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#include "pico_config.h"
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#include "pico_queue.h"
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#define PICO_LOOP_DIR_IN 1
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#define PICO_LOOP_DIR_OUT 2
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enum pico_layer {
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PICO_LAYER_DATALINK = 2, /* Ethernet only. */
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PICO_LAYER_NETWORK = 3, /* IPv4, IPv6, ARP. Arp is there because it communicates with L2 */
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PICO_LAYER_TRANSPORT = 4, /* UDP, TCP, ICMP */
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PICO_LAYER_SOCKET = 5 /* Socket management */
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};
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enum pico_err_e {
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PICO_ERR_NOERR = 0,
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PICO_ERR_EPERM = 1,
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PICO_ERR_ENOENT = 2,
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/* ... */
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PICO_ERR_EINTR = 4,
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PICO_ERR_EIO = 5,
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PICO_ERR_ENXIO = 6,
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/* ... */
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PICO_ERR_EAGAIN = 11,
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PICO_ERR_ENOMEM = 12,
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PICO_ERR_EACCESS = 13,
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PICO_ERR_EFAULT = 14,
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/* ... */
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PICO_ERR_EBUSY = 16,
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PICO_ERR_EEXIST = 17,
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/* ... */
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PICO_ERR_EINVAL = 22,
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/* ... */
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PICO_ERR_ENONET = 64,
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/* ... */
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PICO_ERR_EPROTO = 71,
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/* ... */
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PICO_ERR_ENOPROTOOPT = 92,
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PICO_ERR_EPROTONOSUPPORT = 93,
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/* ... */
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PICO_ERR_EOPNOTSUPP = 95,
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PICO_ERR_EADDRINUSE = 98,
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PICO_ERR_EADDRNOTAVAIL = 99,
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PICO_ERR_ENETDOWN = 100,
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PICO_ERR_ENETUNREACH = 101,
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/* ... */
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PICO_ERR_ECONNRESET = 104,
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/* ... */
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PICO_ERR_EISCONN = 106,
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PICO_ERR_ENOTCONN = 107,
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PICO_ERR_ESHUTDOWN = 108,
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/* ... */
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PICO_ERR_ETIMEDOUT = 110,
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PICO_ERR_ECONNREFUSED = 111,
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PICO_ERR_EHOSTDOWN = 112,
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PICO_ERR_EHOSTUNREACH = 113,
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/* ... */
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PICO_ERR_EINPROGRESS = 115,
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};
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typedef enum pico_err_e pico_err_t;
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extern volatile pico_err_t pico_err;
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#define IS_IPV6(f) (f && f->net_hdr && ((((uint8_t *)(f->net_hdr))[0] & 0xf0) == 0x60))
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#define IS_IPV4(f) (f && f->net_hdr && ((((uint8_t *)(f->net_hdr))[0] & 0xf0) == 0x40))
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#define MAX_PROTOCOL_NAME 16
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struct pico_protocol {
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char name[MAX_PROTOCOL_NAME];
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uint32_t hash;
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enum pico_layer layer;
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uint16_t proto_number;
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struct pico_queue *q_in;
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struct pico_queue *q_out;
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struct pico_frame *(*alloc)(struct pico_protocol *self, struct pico_device *dev, uint16_t size); /* Frame allocation. */
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int (*push)(struct pico_protocol *self, struct pico_frame *p); /* Push function, for active outgoing pkts from above */
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int (*process_out)(struct pico_protocol *self, struct pico_frame *p); /* Send loop. */
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int (*process_in)(struct pico_protocol *self, struct pico_frame *p); /* Recv loop. */
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uint16_t (*get_mtu)(struct pico_protocol *self);
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};
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int pico_protocols_loop(int loop_score);
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void pico_protocol_init(struct pico_protocol *p);
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int pico_protocol_datalink_loop(int loop_score, int direction);
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int pico_protocol_network_loop(int loop_score, int direction);
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int pico_protocol_transport_loop(int loop_score, int direction);
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int pico_protocol_socket_loop(int loop_score, int direction);
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#endif
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