From: Edgar E. Iglesias <edgar.igles...@gmail.com>
When the host aborts (RST) it's 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.
[ste...@steven676.net: coding style adjustments]
Signed-off-by: Steven Luo <steven+q...@steven676.net>
---
v1->v2:
* fix attribution
slirp/socket.c | 17 ++++++++++++++++-
1 file changed, 16 insertions(+), 1 deletion(-)
diff --git a/slirp/socket.c b/slirp/socket.c
index 7f022a6..0d67b12 100644
--- a/slirp/socket.c
+++ b/slirp/socket.c
@@ -176,9 +176,24 @@ soread(struct socket *so)
if (nn < 0 && (errno == EINTR || errno == EAGAIN))
return 0;
else {
+ int err;
+ socklen_t slen = sizeof err;
+
+ err = errno;
+ if (nn == 0) {
+ getsockopt(so->s, SOL_SOCKET, SO_ERROR,
+ &err, &slen);
+ }
+
DEBUG_MISC((dfd, " --- soread() disconnected, nn = %d,
errno = %d-%s\n", nn, errno,strerror(errno)));
sofcantrcvmore(so);
- tcp_sockclosed(sototcpcb(so));
+
+ if (err == ECONNRESET
+ || err == ENOTCONN || err == EPIPE) {
+ tcp_drop(sototcpcb(so), err);
+ } else {
+ tcp_sockclosed(sototcpcb(so));
+ }
return -1;
}
}
--
2.1.4
