slirp: Propagate host TCP RST to the guest.
When the host aborts (RST) its side of a TCP connection we need to propagate that RST to the guest. The current code can leave such guest connections dangling forever. Spotted by Jason Wessel. Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> [steven@steven676.net: coding style adjustments] Signed-off-by: Steven Luo <steven+qemu@steven676.net> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
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@ -176,9 +176,24 @@ soread(struct socket *so)
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if (nn < 0 && (errno == EINTR || errno == EAGAIN))
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return 0;
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else {
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int err;
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socklen_t slen = sizeof err;
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err = errno;
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if (nn == 0) {
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getsockopt(so->s, SOL_SOCKET, SO_ERROR,
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&err, &slen);
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}
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DEBUG_MISC((dfd, " --- soread() disconnected, nn = %d, errno = %d-%s\n", nn, errno,strerror(errno)));
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sofcantrcvmore(so);
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if (err == ECONNRESET
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|| err == ENOTCONN || err == EPIPE) {
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tcp_drop(sototcpcb(so), err);
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} else {
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tcp_sockclosed(sototcpcb(so));
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}
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return -1;
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}
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}
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