diff options
| author |   tedu <tedu@openbsd.org> | 2015-12-08 18:03:49 +0000 |
|---|---|---|
| committer | tedu <tedu@openbsd.org> | 2015-12-08 18:03:49 +0000 |
| commit | e24ba1d1c2d486e7d2527ee138f906e804a76c24 (patch) | |
| tree | e8e192682aa1e0dcfa237cf02ad212e445651397 | |
| parent | Let smtpd shutdown gracefully with a zero exit code when the priv (diff) | |
| download | wireguard-openbsd-e24ba1d1c2d486e7d2527ee138f906e804a76c24.tar.xz wireguard-openbsd-e24ba1d1c2d486e7d2527ee138f906e804a76c24.zip | |
more better fake replies. servfail is the correct response.
| -rw-r--r-- | usr.sbin/rebound/rebound.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/usr.sbin/rebound/rebound.c b/usr.sbin/rebound/rebound.c index 4cec8c11a53..bedc4054f0a 100644 --- a/usr.sbin/rebound/rebound.c +++ b/usr.sbin/rebound/rebound.c @@ -1,4 +1,4 @@ -/* $OpenBSD: rebound.c,v 1.55 2015/12/05 11:51:23 tedu Exp $ */ +/* $OpenBSD: rebound.c,v 1.56 2015/12/08 18:03:49 tedu Exp $ */ /* * Copyright (c) 2015 Ted Unangst <tedu@openbsd.org> * @@ -209,12 +209,13 @@ reqcmp(struct request *r1, struct request *r2) RB_GENERATE_STATIC(reqtree, request, reqnode, reqcmp) static void -fakereply(int ud, uint16_t id, struct sockaddr *fromaddr, socklen_t fromlen) +servfail(int ud, uint16_t id, struct sockaddr *fromaddr, socklen_t fromlen) { struct dnspacket pkt; memset(&pkt, 0, sizeof(pkt)); pkt.id = id; + pkt.flags = htons(1 << 15 | 0x2); sendto(ud, &pkt, sizeof(pkt), 0, fromaddr, fromlen); } @@ -284,7 +285,7 @@ newrequest(int ud, struct sockaddr *remoteaddr) if (connect(req->s, remoteaddr, remoteaddr->sa_len) == -1) { logmsg(LOG_NOTICE, "failed to connect (%d)", errno); if (errno == EADDRNOTAVAIL) - fakereply(ud, req->clientid, &from, fromlen); + servfail(ud, req->clientid, &from, fromlen); goto fail; } if (send(req->s, buf, r, 0) != r) { |