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- (djm) [channels.c misc.c misc.h sshd.c] add missing setsockopt() to 

set IPV6_V6ONLY for local forwarding with GatwayPorts=yes. Unify
   setting IPV6_V6ONLY behind a new function misc.c:sock_set_v6only()
   report and fix from jan.kratochvil AT redhat.com
This commit is contained in:
Damien Miller 2009-11-18 17:48:30 +11:00
parent df6578bb4d
commit 04ee0f8f12
5 changed files with 24 additions and 15 deletions
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6
ChangeLog
View File

@ -1,3 +1,9 @@
20091107
- (djm) [channels.c misc.c misc.h sshd.c] add missing setsockopt() to
set IPV6_V6ONLY for local forwarding with GatwayPorts=yes. Unify
setting IPV6_V6ONLY behind a new function misc.c:sock_set_v6only()
report and fix from jan.kratochvil AT redhat.com
20091107
- (dtucker) [authfile.c] Fall back to 3DES for the encryption of private
keys when built with OpenSSL versions that don't do AES.

11
channels.c
View File

@ -2577,6 +2577,8 @@ channel_setup_fwd_listener(int type, const char *listen_addr,
}
channel_set_reuseaddr(sock);
if (ai->ai_family == AF_INET6)
sock_set_v6only(sock);
debug("Local forwarding listening on %s port %s.",
ntop, strport);
@ -3108,13 +3110,8 @@ x11_create_display_inet(int x11_display_offset, int x11_use_localhost,
continue;
}
}
#ifdef IPV6_V6ONLY
if (ai->ai_family == AF_INET6) {
int on = 1;
if (setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof(on)) < 0)
error("setsockopt IPV6_V6ONLY: %.100s", strerror(errno));
}
#endif
if (ai->ai_family == AF_INET6)
sock_set_v6only(sock);
if (x11_use_localhost)
channel_set_reuseaddr(sock);
if (bind(sock, ai->ai_addr, ai->ai_addrlen) < 0) {

11
misc.c
View File

@ -849,3 +849,14 @@ ms_to_timeval(struct timeval *tv, int ms)
tv->tv_usec = (ms % 1000) * 1000;
}
void
sock_set_v6only(int s)
{
#ifdef IPV6_V6ONLY
int on = 1;
debug3("%s: set socket %d IPV6_V6ONLY", __func__, s);
if (setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof(on)) == -1)
error("setsockopt IPV6_V6ONLY: %s", strerror(errno));
#endif
}

1
misc.h
View File

@ -35,6 +35,7 @@ char *tohex(const void *, size_t);
void sanitise_stdfd(void);
void ms_subtract_diff(struct timeval *, int *);
void ms_to_timeval(struct timeval *, int);
void sock_set_v6only(int);
struct passwd *pwcopy(struct passwd *);
const char *ssh_gai_strerror(int);

10
sshd.c
View File

@ -979,15 +979,9 @@ server_listen(void)
&on, sizeof(on)) == -1)
error("setsockopt SO_REUSEADDR: %s", strerror(errno));
#ifdef IPV6_V6ONLY
/* Only communicate in IPv6 over AF_INET6 sockets. */
if (ai->ai_family == AF_INET6) {
if (setsockopt(listen_sock, IPPROTO_IPV6, IPV6_V6ONLY,
&on, sizeof(on)) == -1)
error("setsockopt IPV6_V6ONLY: %s",
strerror(errno));
}
#endif
if (ai->ai_family == AF_INET6)
sock_set_v6only(listen_sock);
debug("Bind to port %s on %s.", strport, ntop);