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Move helpers for address types in internals.h to their own header

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This commit is contained in:
Matias Fontanini
2017-04-30 10:21:26 -07:00
parent c072ffe421
commit 95626a867e
7 changed files with 187 additions and 91 deletions
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54
include/tins/internals.h
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@@ -71,63 +71,9 @@ uint32_t get_padded_icmp_inner_pdu_size(const PDU* inner_pdu, uint32_t pad_align
void try_parse_icmp_extensions(Memory::InputMemoryStream& stream,
uint32_t payload_length, ICMPExtensionsStructure& extensions);
template<typename T>
bool increment_buffer(T& addr) {
typename T::iterator it = addr.end() - 1;
while (it >= addr.begin() && *it == 0xff) {
*it = 0;
--it;
}
// reached end
if (it < addr.begin()) {
return true;
}
(*it)++;
return false;
}
template<typename T>
bool decrement_buffer(T& addr) {
typename T::iterator it = addr.end() - 1;
while (it >= addr.begin() && *it == 0) {
*it = 0xff;
--it;
}
// reached end
if (it < addr.begin()) {
return true;
}
(*it)--;
return false;
}
bool increment(IPv4Address& addr);
bool increment(IPv6Address& addr);
bool decrement(IPv4Address& addr);
bool decrement(IPv6Address& addr);
template<size_t n>
bool increment(HWAddress<n>& addr) {
return increment_buffer(addr);
}
template<size_t n>
bool decrement(HWAddress<n>& addr) {
return decrement_buffer(addr);
}
// Compares sequence numbers as defined by RFC 1982.
int seq_compare(uint32_t seq1, uint32_t seq2);
IPv4Address last_address_from_mask(IPv4Address addr, IPv4Address mask);
IPv6Address last_address_from_mask(IPv6Address addr, const IPv6Address& mask);
template<size_t n>
HWAddress<n> last_address_from_mask(HWAddress<n> addr, const HWAddress<n>& mask) {
typename HWAddress<n>::iterator addr_iter = addr.begin();
for (typename HWAddress<n>::const_iterator it = mask.begin(); it != mask.end(); ++it, ++addr_iter) {
*addr_iter = *addr_iter | ~*it;
}
return addr;
}
inline bool is_dot3(const uint8_t* ptr, size_t sz) {
return (sz >= 13 && ptr[12] < 8);
}