Théophile Bastian
0b8cf0edc1
Those packets are probably packets truncated because the buffer is not large enough.
20 lines
589 B
C++
20 lines
589 B
C++
#include <cstring>
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#include "ip_header.hpp"
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#include "util.hpp"
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bool parse_ipv6_header(const char* data, size_t len, IPv6Header& header) {
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if(len < 40) { // header too short
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kdebugf("Bad v6 header -- too short.\n");
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return false;
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}
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if((data[0] & 0xf0) != 0x60) { // bad version number
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kdebugf("Bad v6 header -- bad version number (byte = %x).\n", data[0]);
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return false;
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}
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memcpy(&(header.source), data + 8, 16);
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memcpy(&(header.dest), data + 24, 16);
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header.payload_length = ntohs(*(uint16_t*)(data + 4));
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return true;
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}
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