36 lines
1.3 KiB
Plaintext
36 lines
1.3 KiB
Plaintext
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// Test a RST is not generated in response to a RST and a RST is correctly
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// generated when an accepted endpoint is RST due to an incoming RST.
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0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
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+0 bind(3, ..., ...) = 0
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+0 listen(3, 1) = 0
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// Establish a connection without timestamps.
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+0 < S 0:0(0) win 32792 <mss 1460,sackOK,nop,nop,nop,wscale 7>
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+0 > S. 0:0(0) ack 1 <...>
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+0 < P. 1:1(0) ack 1 win 257
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+0.100 accept(3, ..., ...) = 4
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+0.200 < R 1:1(0) win 0
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+0.300 read(4,..., 4) = -1 ECONNRESET (Connection Reset by Peer)
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+0.00 < . 1:1(0) ack 1 win 257
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// Linux generates a reset with no ack number/bit set. This is contradictory to
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// what is specified in Rule 1 under Reset Generation in
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// https://tools.ietf.org/html/rfc793#section-3.4.
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// "1. If the connection does not exist (CLOSED) then a reset is sent
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// in response to any incoming segment except another reset. In
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// particular, SYNs addressed to a non-existent connection are rejected
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// by this means.
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//
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// If the incoming segment has an ACK field, the reset takes its
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// sequence number from the ACK field of the segment, otherwise the
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// reset has sequence number zero and the ACK field is set to the sum
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// of the sequence number and segment length of the incoming segment.
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// The connection remains in the CLOSED state."
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+0.00 > R 1:1(0) win 0
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