diff options
Diffstat (limited to 'usr.sbin/switchd/ofp_common.c')
| -rw-r--r-- | usr.sbin/switchd/ofp_common.c | 36 |
1 files changed, 35 insertions, 1 deletions
diff --git a/usr.sbin/switchd/ofp_common.c b/usr.sbin/switchd/ofp_common.c index fee9da2c82b..d3f882442ef 100644 --- a/usr.sbin/switchd/ofp_common.c +++ b/usr.sbin/switchd/ofp_common.c @@ -1,4 +1,4 @@ -/* $OpenBSD: ofp_common.c,v 1.2 2016/11/04 22:27:08 reyk Exp $ */ +/* $OpenBSD: ofp_common.c,v 1.3 2016/11/11 22:07:40 reyk Exp $ */ /* * Copyright (c) 2013-2016 Reyk Floeter <reyk@openbsd.org> @@ -44,6 +44,40 @@ #include "ofp_map.h" int +ofp_validate_header(struct switchd *sc, + struct sockaddr_storage *src, struct sockaddr_storage *dst, + struct ofp_header *oh, uint8_t version) +{ + struct constmap *tmap; + + /* For debug, don't verify the header if the version is unset */ + if (version != OFP_V_0 && + (oh->oh_version != version || + oh->oh_type >= OFP_T_TYPE_MAX)) + return (-1); + + switch (version) { + case OFP_V_1_0: + case OFP_V_1_1: + tmap = ofp10_t_map; + break; + case OFP_V_1_3: + default: + tmap = ofp_t_map; + break; + } + + log_debug("%s > %s: version %s type %s length %u xid %u", + print_host(src, NULL, 0), + print_host(dst, NULL, 0), + print_map(oh->oh_version, ofp_v_map), + print_map(oh->oh_type, tmap), + ntohs(oh->oh_length), ntohl(oh->oh_xid)); + + return (0); +} + +int ofp_output(struct switch_connection *con, struct ofp_header *oh, struct ibuf *obuf) { |