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Added an API for getting a callback when a ping reply is received.

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This commit is contained in:
Adam Dunkels 2013-11-16 16:23:43 +01:00
parent 75cbf4f48a
commit 9114cd3215
3 changed files with 150 additions and 4 deletions
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59
core/net/uip-icmp6.h
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@ -113,6 +113,15 @@ typedef struct uip_icmp6_error{
void
uip_icmp6_echo_request_input(void);
/** \
* brief Process an echo reply
*
* Perform a few checks, then call applications to inform that an echo
* reply has been received.
*/
void
uip_icmp6_echo_reply_input(void);
/**
* \brief Send an icmpv6 error message
* \param type type of the error message
@ -130,7 +139,55 @@ uip_icmp6_error_output(uint8_t type, uint8_t code, uint32_t param);
* \param payload_len length of the payload
*/
void
uip_icmp6_send(uip_ipaddr_t *dest, int type, int code, int payload_len);
uip_icmp6_send(const uip_ipaddr_t *dest, int type, int code, int payload_len);
typedef void (* uip_icmp6_echo_reply_callback_t)(uip_ipaddr_t *source,
uint8_t ttl,
uint8_t *data,
uint16_t datalen);
struct uip_icmp6_echo_reply_notification {
struct uip_icmp6_echo_reply_notification *next;
uip_icmp6_echo_reply_callback_t callback;
};
/**
* \brief Add a callback function for ping replies
* \param n A struct uip_icmp6_echo_reply_notification that must have been allocated by the caller
* \param c A pointer to the callback function to be called
*
* This function adds a callback function to the list of
* callback functions that are called when an ICMP echo
* reply (ping reply) is received. This is used when
* implementing a ping protocol: attach a callback
* function to the ping reply, then send out a ping packet
* with uip_icmp6_send().
*
* The caller must have statically allocated a struct
* uip_icmp6_echo_reply_notification to hold the internal
* state of the callback function.
*
* When a ping reply packet is received, all registered
* callback functions are called. The callback functions
* must not modify the contents of the uIP buffer.
*/
void
uip_icmp6_echo_reply_callback_add(struct uip_icmp6_echo_reply_notification *n,
uip_icmp6_echo_reply_callback_t c);
/**
* \brief Remove a callback function for ping replies
* \param n A struct uip_icmp6_echo_reply_notification that must have been previously added with uip_icmp6_echo_reply_callback_add()
*
* This function removes a callback function from the list of
* callback functions that are called when an ICMP echo
* reply (ping reply) is received.
*/
void
uip_icmp6_echo_reply_callback_rm(struct uip_icmp6_echo_reply_notification *n);
/** @} */