/*
- * Copyright (c) 2011, 2012 Nicira, Inc.
+ * Copyright (c) 2011, 2012, 2013 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
#include <netinet/ip6.h>
#include "flow.h"
#include "ofp-errors.h"
+#include "ofp-util.h"
#include "packets.h"
struct ds;
MFF_TUN_TOS, /* u8 */
MFF_METADATA, /* be64 */
MFF_IN_PORT, /* be16 */
+ MFF_IN_PORT_OXM, /* be32 */
MFF_SKB_PRIORITY, /* be32 */
- MFF_SKB_MARK, /* be32 */
+ MFF_PKT_MARK, /* be32 */
#if FLOW_N_REGS > 0
MFF_REG0, /* be32 */
MFF_IPV6_DST, /* ipv6 */
MFF_IPV6_LABEL, /* be32 */
+ /* The IPv4/IPv6 DSCP field has two different views:
+ *
+ * - MFF_IP_DSCP has the DSCP in bits 2-7, their bit positions in the
+ * IPv4 and IPv6 "traffic class" field, as used in OpenFlow 1.0 and 1.1
+ * flow format and in NXM's NXM_OF_IP_TOS
+ *
+ * - MFF_IP_DSCP has the DSCP in bits 0-5, shifted right two bits from
+ * their positions in the IPv4 and IPv6 "traffic class" field, as used
+ * in OpenFlow 1.2+ OXM's OXM_OF_IP_DSCP. */
MFF_IP_PROTO, /* u8 (used for IPv4 or IPv6) */
MFF_IP_DSCP, /* u8 (used for IPv4 or IPv6) */
+ MFF_IP_DSCP_SHIFTED, /* u8 (used for IPv4 or IPv6) (OF1.2 compat) */
MFF_IP_ECN, /* u8 (used for IPv4 or IPv6) */
MFF_IP_TTL, /* u8 (used for IPv4 or IPv6) */
MFF_IP_FRAG, /* u8 (used for IPv4 or IPv6) */
MFF_UDP_SRC, /* be16 (used for IPv4 or IPv6) */
MFF_UDP_DST, /* be16 (used for IPv4 or IPv6) */
+ MFF_SCTP_SRC, /* be16 (used for IPv4 or IPv6) */
+ MFF_SCTP_DST, /* be16 (used for IPv4 or IPv6) */
+
MFF_ICMPV4_TYPE, /* u8 */
MFF_ICMPV4_CODE, /* u8 */
/* L2+L3 requirements. */
MFP_TCP, /* On IPv4 or IPv6. */
MFP_UDP, /* On IPv4 or IPv6. */
+ MFP_SCTP, /* On IPv4 or IPv6. */
MFP_ICMPV4,
MFP_ICMPV6,
MFS_IPV4,
MFS_IPV6,
MFS_OFP_PORT, /* An OpenFlow port number or name. */
+ MFS_OFP_PORT_OXM, /* An OpenFlow port number or name (32-bit). */
MFS_FRAG, /* no, yes, first, later, not_later */
MFS_TNL_FLAGS, /* FLOW_TNL_F_* flags */
};
uint32_t nxm_header; /* An NXM_* (or OXM_*) constant. */
const char *nxm_name; /* The nxm_header constant's name. */
uint32_t oxm_header; /* An OXM_* (or NXM_*) constant. */
- const char *oxm_name; /* The oxm_header constant's name */
+ const char *oxm_name; /* The oxm_header constant's name */
+
+ /* Usable protocols.
+ * NXM and OXM are extensible, allowing later extensions to be sent in
+ * earlier protocol versions, so this does not necessarily correspond to
+ * the OpenFlow protocol version the field was introduced in.
+ * Also, some field types are tranparently mapped to each other via the
+ * struct flow (like vlan and dscp/tos fields), so each variant supports
+ * all protocols. */
+ enum ofputil_protocol usable_protocols; /* If fully/cidr masked. */
+ /* If partially/non-cidr masked. */
+ enum ofputil_protocol usable_protocols_bitwise;
};
/* The representation of a field's value. */
void mf_get(const struct mf_field *, const struct match *,
union mf_value *value, union mf_value *mask);
-void mf_set(const struct mf_field *,
- const union mf_value *value, const union mf_value *mask,
- struct match *);
+
+/* Returns the set of usable protocols. */
+enum ofputil_protocol mf_set(const struct mf_field *,
+ const union mf_value *value,
+ const union mf_value *mask,
+ struct match *);
void mf_set_wild(const struct mf_field *, struct match *);
void mf_format_subfield(const struct mf_subfield *, struct ds *);
-char *mf_parse_subfield__(struct mf_subfield *sf, const char **s);
-const char *mf_parse_subfield(struct mf_subfield *, const char *);
+char *mf_parse_subfield__(struct mf_subfield *sf, const char **s)
+ WARN_UNUSED_RESULT;
+char *mf_parse_subfield(struct mf_subfield *, const char *s)
+ WARN_UNUSED_RESULT;
enum ofperr mf_check_src(const struct mf_subfield *, const struct flow *);
enum ofperr mf_check_dst(const struct mf_subfield *, const struct flow *);