ace00ea0f2
Extend icmp_parse_ip_header to allow optional extraction of destination IP address and protocol from the IP header
21 lines
659 B
C
21 lines
659 B
C
#ifndef ICMP_PACKET_INTERNAL_H
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#define ICMP_PACKET_INTERNAL_H
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#include <stdint.h>
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#include <stddef.h>
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#include <netinet/in.h>
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int icmp_build_packet(void *buffer, size_t buffer_len, uint8_t type,
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uint8_t code, uint32_t header_rest,
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const void *payload, size_t payload_len);
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int icmp_parse_ip_header(const void *buffer, size_t buffer_len,
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uint8_t *ttl, struct in_addr *src_addr,
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size_t *ip_hdr_len, struct in_addr *dst_addr,
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uint8_t *protocol);
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int icmp_parse_icmp_payload(const void *buffer, size_t buffer_len,
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size_t ip_hdr_len, uint8_t *type, uint8_t *code,
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const void **payload, size_t *payload_len);
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#endif
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