Hi,
> This is pretty important wrt dual-stack configurations because they can
> be implemented with just slight changes to spice server (unlike the old
> RFE requesting listening on multiple addresses):
>
> * when no addr= or ipvx options are set, listen on ::0
spice-server sets "ai.ai_flags = AI_PASSIVE | AI_ADDRCONFIG", which
should make getaddrinfo() pick something reasonable, specifically listen
on ipv6 only if the machine actually has ipv6 connectivity.
I think this is the behavior we want here.
> * when ipv4 and no addr= option is set, listen on 0.0.0.0
Works today.
> * when ipv6 is set, set IPV6_ONLY to 1 to make sure that spice server
> won't listen on ipv4
Trivially to add, see patch.
> * when conflicting ipvx and addr= options are set, error out (this
> already works fine)
Works today indeed.
cheers,
Gerd
diff --git a/server/reds.c b/server/reds.c
index c54d30c..16f3087 100644
--- a/server/reds.c
+++ b/server/reds.c
@@ -2943,9 +2943,15 @@ static int reds_init_socket(const char *addr, int
portnr, int family)
setsockopt(slisten,SOL_SOCKET,SO_REUSEADDR,(void*)&on,sizeof(on));
#ifdef IPV6_V6ONLY
if (e->ai_family == PF_INET6) {
- /* listen on both ipv4 and ipv6 */
- setsockopt(slisten,IPPROTO_IPV6,IPV6_V6ONLY,(void*)&off,
- sizeof(off));
+ if (family == PF_INET6) {
+ /* we've been asked to listen on ipv6 only. */
+ setsockopt(slisten,IPPROTO_IPV6,IPV6_V6ONLY,(void*)&on,
+ sizeof(on));
+ } else {
+ /* listen on both ipv4 and ipv6 */
+ setsockopt(slisten,IPPROTO_IPV6,IPV6_V6ONLY,(void*)&off,
+ sizeof(off));
+ }
}
#endif
if (bind(slisten, e->ai_addr, e->ai_addrlen) == 0) {
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