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Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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These could be used to DoS llmnrd, just silently discard invalid
packets.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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We need to return type, class, ttl and rdlength in network byte order.
Also we need to pkt_put() 2 bytes in addition to the hostname length
(length and NULL byte).
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Exit out early if the query class is not LLMNR_QCLASS_IN.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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pkt_len() return the amount of bytes the packet currently holds.
Together with the newly added bytes it mustn't exceed p->size.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Also get rid of the unnecessary head member of struct pkt. For now we
only append data at the end of a packet.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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