diff options
| author |   naddy <naddy@openbsd.org> | 2008-06-10 03:51:53 +0000 |
|---|---|---|
| committer | naddy <naddy@openbsd.org> | 2008-06-10 03:51:53 +0000 |
| commit | a94d3d28bb89a46aabceb62c2bb9f0e8722aee25 (patch) | |
| tree | 14628dd83d779d60b91fc886f346581d6e03339d | |
| parent | According to the latest SNTPv4 spec in RFC4330, secondary servers (diff) | |
| download | wireguard-openbsd-a94d3d28bb89a46aabceb62c2bb9f0e8722aee25.tar.xz wireguard-openbsd-a94d3d28bb89a46aabceb62c2bb9f0e8722aee25.zip | |
For IPv6 addresses, return the first 32 bits of the MD5 hash of the
address as ref ID (RFC4330). ok henning@
| -rw-r--r-- | usr.sbin/ntpd/client.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/usr.sbin/ntpd/client.c b/usr.sbin/ntpd/client.c index 92a5199d5a2..bf374510bea 100644 --- a/usr.sbin/ntpd/client.c +++ b/usr.sbin/ntpd/client.c @@ -1,4 +1,4 @@ -/* $OpenBSD: client.c,v 1.80 2008/06/10 03:46:09 naddy Exp $ */ +/* $OpenBSD: client.c,v 1.81 2008/06/10 03:51:53 naddy Exp $ */ /* * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org> @@ -19,6 +19,7 @@ #include <sys/param.h> #include <errno.h> +#include <md5.h> #include <stdlib.h> #include <string.h> #include <time.h> @@ -267,10 +268,20 @@ client_dispatch(struct ntp_peer *p, u_int8_t settime) p->reply[p->shift].status.poll = msg.ppoll; p->reply[p->shift].status.stratum = msg.stratum; - if (p->addr->ss.ss_family == AF_INET) + if (p->addr->ss.ss_family == AF_INET) { p->reply[p->shift].status.send_refid = ((struct sockaddr_in *)&p->addr->ss)->sin_addr.s_addr; - else + } else if (p->addr->ss.ss_family == AF_INET6) { + MD5_CTX context; + u_int8_t digest[MD5_DIGEST_LENGTH]; + + MD5Init(&context); + MD5Update(&context, ((struct sockaddr_in6 *)&p->addr->ss)-> + sin6_addr.s6_addr, sizeof(struct in6_addr)); + MD5Final(digest, &context); + memcpy((char *)&p->reply[p->shift].status.send_refid, digest, + sizeof(u_int32_t)); + } else p->reply[p->shift].status.send_refid = msg.xmttime.fractionl; if (p->trustlevel < TRUSTLEVEL_PATHETIC) |