33 lines
1,011 B
C
33 lines
1,011 B
C
#ifndef ICMP_RECV_H
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#define ICMP_RECV_H
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#include "icmp.h"
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#include "internal/icmp_internal.h"
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#include <netinet/in.h>
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#include <sys/types.h>
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/* Validation helpers */
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int recv_validate_params(struct icmp_handle *h, icmp_callback_t cb);
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int recv_handle_receive_error(struct icmp_handle *h);
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/* Core receive functions */
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ssize_t recv_receive_packet(int fd, void *buffer, size_t buffer_len,
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struct sockaddr_in *from);
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int recv_parse_packet(const void *buffer, size_t buffer_len,
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uint8_t *type, uint8_t *code,
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uint8_t *ttl, struct in_addr *src_addr,
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const void **payload, size_t *payload_len,
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size_t *ip_hdr_len);
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/* Reply building */
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void recv_build_reply(icmp_reply_t *reply, uint8_t type, uint8_t code,
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uint8_t ttl, struct in_addr src_addr,
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const void *payload, size_t payload_len,
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const void *buffer, size_t ip_hdr_len);
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/* Process single packet */
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void recv_process_single_packet(uint8_t *buffer, ssize_t len,
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icmp_callback_t cb, void *userdata);
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#endif
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