diff options
Diffstat (limited to 'test/packetdrill/tests/linux/shutdown/shutdown-rd-wr-close.pkt')
| -rw-r--r-- | test/packetdrill/tests/linux/shutdown/shutdown-rd-wr-close.pkt | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/test/packetdrill/tests/linux/shutdown/shutdown-rd-wr-close.pkt b/test/packetdrill/tests/linux/shutdown/shutdown-rd-wr-close.pkt new file mode 100644 index 0000000..5b97fad --- /dev/null +++ b/test/packetdrill/tests/linux/shutdown/shutdown-rd-wr-close.pkt @@ -0,0 +1,45 @@ +// Verify behavior for the sequence: +// shutdown(SHUT_RD), receive, send, shutdown(SHUT_WR), close(). + +// Initialize a server socket. +0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3 ++0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0 ++0 bind(3, ..., ...) = 0 ++0 listen(3, 1) = 0 + ++0 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 7> ++0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 6> ++0 < . 1:1(0) ack 1 win 257 + ++0 accept(3, ..., ...) = 4 + ++.010 shutdown(4, SHUT_RD) = 0 + ++0 read(4, ..., 1000) = 0 + +// You would think that after SHUT_RD we would respond to incoming +// data with a RST and not queue the data for reading, but we actually +// ACK the data, enqueue it for reading, and can read() the data. +// AFAICT in 2003 Andi Kleen seems to have decided that this case is too +// obscure to slow down the fast path for receiving and reading data: +// http://marc.info/?l=linux-netdev&m=105774722214242&w=2 +// So.... +// Verify that receiving and reading still works. ++0 < . 1:1001(1000) ack 1 win 257 ++0 > . 1:1(0) ack 1001 ++0 read(4, ..., 1000) = 1000 + +// Verify that writing and sending still works. ++.010 write(4, ..., 1000) = 1000 ++0 > P. 1:1001(1000) ack 1001 ++0 < . 1001:1001(0) ack 1001 win 257 + ++.010 shutdown(4, SHUT_WR) = 0 ++0 > F. 1001:1001(0) ack 1001 ++0 < . 1001:1001(0) ack 1002 win 257 ++0 write(4, ..., 1000) = -1 EPIPE (Broken pipe) + ++.010 close(4) = 0 + ++.010 < F. 1001:1001(0) ack 1002 win 257 ++0 > . 1002:1002(0) ack 1002 |