94 lines
3.2 KiB
C
94 lines
3.2 KiB
C
/*********************************************************************
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PicoTCP. Copyright (c) 2012-2015 Altran Intelligent Systems. Some rights reserved.
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See LICENSE and COPYING for usage.
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*********************************************************************/
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#ifndef INCLUDE_PICO_STACK
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#define INCLUDE_PICO_STACK
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#include "pico_config.h"
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#include "pico_frame.h"
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#define PICO_MAX_TIMERS 20
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#define PICO_ETH_MRU (1514u)
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#define PICO_IP_MRU (1500u)
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/* ===== RECEIVING FUNCTIONS (from dev up to socket) ===== */
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/* TRANSPORT LEVEL */
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/* interface towards network */
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int32_t pico_transport_receive(struct pico_frame *f, uint8_t proto);
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/* NETWORK LEVEL */
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/* interface towards ethernet */
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int32_t pico_network_receive(struct pico_frame *f);
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* LOWEST LEVEL: interface towards devices. */
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/* Device driver will call this function which returns immediately.
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* Incoming packet will be processed later on in the dev loop.
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* The zerocopy version will associate the current buffer to the newly created frame.
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* Warning: the buffer used in the zerocopy version MUST have been allocated using PICO_ZALLOC()
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*/
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int32_t pico_stack_recv(struct pico_device *dev, uint8_t *buffer, uint32_t len);
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int32_t pico_stack_recv_zerocopy(struct pico_device *dev, uint8_t *buffer, uint32_t len);
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int32_t pico_stack_recv_zerocopy_ext_buffer(struct pico_device *dev, uint8_t *buffer, uint32_t len);
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int32_t pico_stack_recv_zerocopy_ext_buffer_notify(struct pico_device *dev, uint8_t *buffer, uint32_t len, void (*notify_free)(uint8_t *buffer));
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/* ===== SENDING FUNCTIONS (from socket down to dev) ===== */
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int32_t pico_network_send(struct pico_frame *f);
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int32_t pico_sendto_dev(struct pico_frame *f);
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#ifdef PICO_SUPPORT_ETH
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int32_t pico_ethernet_send(struct pico_frame *f);
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/* The pico_ethernet_receive() function is used by
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* those devices supporting ETH in order to push packets up
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* into the stack.
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*/
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/* DATALINK LEVEL */
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int32_t pico_ethernet_receive(struct pico_frame *f);
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#else
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/* When ETH is not supported by the stack... */
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# define pico_ethernet_send(f) (-1)
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# define pico_ethernet_receive(f) (-1)
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#endif
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/* ----- Initialization ----- */
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int pico_stack_init(void);
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/* ----- Loop Function. ----- */
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void pico_stack_tick(void);
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void pico_stack_loop(void);
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#ifdef __cplusplus
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}
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#endif
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/* ---- Notifications for stack errors */
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int pico_notify_socket_unreachable(struct pico_frame *f);
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int pico_notify_proto_unreachable(struct pico_frame *f);
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int pico_notify_dest_unreachable(struct pico_frame *f);
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int pico_notify_ttl_expired(struct pico_frame *f);
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int pico_notify_frag_expired(struct pico_frame *f);
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int pico_notify_pkt_too_big(struct pico_frame *f);
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/* Various. */
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int pico_source_is_local(struct pico_frame *f);
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int pico_frame_dst_is_unicast(struct pico_frame *f);
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void pico_store_network_origin(void *src, struct pico_frame *f);
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uint32_t pico_timer_add(pico_time expire, void (*timer)(pico_time, void *), void *arg);
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void pico_timer_cancel(uint32_t id);
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uint32_t pico_rand(void);
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void pico_rand_feed(uint32_t feed);
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void pico_to_lowercase(char *str);
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int pico_address_compare(union pico_address *a, union pico_address *b, uint16_t proto);
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int32_t pico_seq_compare(uint32_t a, uint32_t b);
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#endif
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