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103 lines
3.3 KiB
103 lines
3.3 KiB
/********************************************************************* |
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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 128 |
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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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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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int pico_ntimers(); |
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#ifdef __cplusplus |
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} |
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#endif |
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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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