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James Tucker 146f51ce76 net/packet: fix filtering of short IPv4 fragments ... The fragment offset is an 8 byte offset rather than a byte offset, so the short packet limit is now in fragment block size in order to compare with the offset value. The packet flags are in the first 3 bits of the flags/frags byte, and so after conversion to a uint16 little endian value they are at the start, not the end of the value - the mask for extracting "more fragments" is adjusted to match this byte. Extremely short fragments less than 80 bytes are dropped, but fragments over 80 bytes are now accepted. Fixes #5727 Signed-off-by: James Tucker <james@tailscale.com>		2 years ago
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doc.go	net/packet: s/ParsedPacket/Parsed/ to avoid package stuttering.	4 years ago
header.go	net/packet: add ICMP6Header, like ICMP4Header	3 years ago
icmp.go	wgengine, net/packet, cmd/tailscale: add ICMP echo	3 years ago
icmp4.go	net/packet, wgengine{,/filter}: remove net/packet IPProto forwarding consts	4 years ago
icmp6.go	net/packet: add ICMP6Header, like ICMP4Header	3 years ago
icmp6_test.go	all: use various net/netip parse funcs directly	2 years ago
ip4.go	all: convert more code to use net/netip directly	2 years ago
ip6.go	all: convert more code to use net/netip directly	2 years ago
packet.go	net/packet: fix filtering of short IPv4 fragments	2 years ago
packet_test.go	net/packet: fix filtering of short IPv4 fragments	2 years ago
tsmp.go	all: gofmt for Go 1.19	2 years ago
tsmp_test.go	all: use various net/netip parse funcs directly	2 years ago
udp4.go	net/packet, wgengine{,/filter}: remove net/packet IPProto forwarding consts	4 years ago
udp6.go	net/packet: don't make IP6Header.marshalPseudo assume UDP	3 years ago