Sha256: 27e3db84a77ec4804c3c0e570c6251fe33f8da00dd9f8683fde6c68a4713f636
Contents?: true
Size: 1.95 KB
Versions: 17
Compression:
Stored size: 1.95 KB
Contents
# http://www.mudynamics.com
# http://labs.mudynamics.com
# http://www.pcapr.net
module Mu
class Pcap
class SCTP
class Chunk
class InitAck < Init
def initialize
super
@type = CHUNK_INIT_ACK
end
def self.from_bytes flags, size, bytes
# Basic validation
Pcap.assert(bytes.length >= 16,
"Truncated init_ack chunk header: 16 > #{bytes.length}")
# Read init_ack chunk header
init_tag, a_rwnd, o_streams, i_streams, init_tsn = bytes.unpack('NNnnN')
# Create init chunk
init_ack = InitAck.new
init_ack.flags = flags
init_ack.size = size
init_ack.init_tag = init_tag
init_ack.a_rwnd = a_rwnd
init_ack.o_streams = o_streams
init_ack.i_streams = i_streams
init_ack.init_tsn = init_tsn
# Initialize the counter
length = 16
# Collect the chunks
while length < bytes.length
# Parse new parameter from the bytes
parameter = Parameter.from_bytes(bytes[length..-1])
# Get parameter size with padding
length += parameter.padded_size
# Add chunk to the list
init_ack << parameter
end
# Return the result
return init_ack
end
def to_s
return "init_ack(%d, %d, %d, %d, %d, %d, %s)" % [@size,
@init_tag,
@a_rwnd,
@o_streams,
@i_streams,
@init_tsn,
@payload.join(", ")]
end
end # class InitAck
end # class Chunk
end # class SCTP
end # class Pcap
end # module Mu
Version data entries
17 entries across 17 versions & 2 rubygems