- (dtucker) [auth-pam.c auth.h auth2-none.c auth2.c monitor.c monitor_wrap.c]

   Bug #892: Send messages from failing PAM account modules to the client via
   SSH2_MSG_USERAUTH_BANNER messages.  Note that this will not happen with
   SSH2 kbdint authentication, which need to be dealt with separately.  ok djm@

1 files changed, 14 insertions, 5 deletions

diff --git a/auth2-none.c b/auth2-none.c
index 787458da..1c30a320 100644
--- a/auth2-none.c
+++ b/auth2-none.c
@@ -74,6 +74,19 @@ auth2_read_banner(void)
 	return (banner);
 }
 
+void
+userauth_send_banner(const char *msg)
+{
+	if (datafellows & SSH_BUG_BANNER)
+		return;
+
+	packet_start(SSH2_MSG_USERAUTH_BANNER);
+	packet_put_cstring(msg);
+	packet_put_cstring("");		/* language, unused */
+	packet_send();
+	debug("%s: sent", __func__);
+}
+
 static void
 userauth_banner(void)
 {
@@ -84,12 +97,8 @@ userauth_banner(void)
 
 	if ((banner = PRIVSEP(auth2_read_banner())) == NULL)
 		goto done;
+	userauth_send_banner(banner);
 
-	packet_start(SSH2_MSG_USERAUTH_BANNER);
-	packet_put_cstring(banner);
-	packet_put_cstring("");		/* language, unused */
-	packet_send();
-	debug("userauth_banner: sent");
 done:
 	if (banner)
 		xfree(banner);