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[Qemu-devel] [PATCH] slirp: fix clearing ifq_so from pending packets
From: |
Samuel Thibault |
Subject: |
[Qemu-devel] [PATCH] slirp: fix clearing ifq_so from pending packets |
Date: |
Sat, 26 Aug 2017 00:37:21 +0200 |
The if_fastq and if_batchq contain not only packets, but queues of packets
for the same socket. When sofree frees a socket, it thus has to clear ifq_so
from all the packets from the queues, not only the first.
Signed-off-by: Samuel Thibault <address@hidden>
Acked-by: Philippe Mathieu-Daudé <address@hidden>
---
slirp/socket.c | 39 +++++++++++++++++++++++----------------
1 file changed, 23 insertions(+), 16 deletions(-)
diff --git a/slirp/socket.c b/slirp/socket.c
index ecec0295a9..cb7b5b608d 100644
--- a/slirp/socket.c
+++ b/slirp/socket.c
@@ -59,6 +59,27 @@ socreate(Slirp *slirp)
return(so);
}
+/*
+ * Remove references to so from the given message queue.
+ */
+static void
+soqfree(struct socket *so, struct quehead *qh)
+{
+ struct mbuf *ifq;
+
+ for (ifq = (struct mbuf *) qh->qh_link;
+ (struct quehead *) ifq != qh;
+ ifq = ifq->ifq_next) {
+ if (ifq->ifq_so == so) {
+ struct mbuf *ifm;
+ ifq->ifq_so = NULL;
+ for (ifm = ifq->ifs_next; ifm != ifq; ifm = ifm->ifs_next) {
+ ifm->ifq_so = NULL;
+ }
+ }
+ }
+}
+
/*
* remque and free a socket, clobber cache
*/
@@ -66,23 +87,9 @@ void
sofree(struct socket *so)
{
Slirp *slirp = so->slirp;
- struct mbuf *ifm;
- for (ifm = (struct mbuf *) slirp->if_fastq.qh_link;
- (struct quehead *) ifm != &slirp->if_fastq;
- ifm = ifm->ifq_next) {
- if (ifm->ifq_so == so) {
- ifm->ifq_so = NULL;
- }
- }
-
- for (ifm = (struct mbuf *) slirp->if_batchq.qh_link;
- (struct quehead *) ifm != &slirp->if_batchq;
- ifm = ifm->ifq_next) {
- if (ifm->ifq_so == so) {
- ifm->ifq_so = NULL;
- }
- }
+ soqfree(so, &slirp->if_fastq);
+ soqfree(so, &slirp->if_batchq);
if (so->so_emu==EMU_RSH && so->extra) {
sofree(so->extra);
--
2.14.1
- [Qemu-devel] [PATCH] slirp: fix clearing ifq_so from pending packets,
Samuel Thibault <=