/*
- * Copyright (c) 2012 Nicira Networks.
+ * Copyright (c) 2012 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
DEFINE_OFPACT(SET_VLAN_VID, ofpact_vlan_vid, ofpact) \
DEFINE_OFPACT(SET_VLAN_PCP, ofpact_vlan_pcp, ofpact) \
DEFINE_OFPACT(STRIP_VLAN, ofpact_null, ofpact) \
+ DEFINE_OFPACT(PUSH_VLAN, ofpact_null, ofpact) \
DEFINE_OFPACT(SET_ETH_SRC, ofpact_mac, ofpact) \
DEFINE_OFPACT(SET_ETH_DST, ofpact_mac, ofpact) \
DEFINE_OFPACT(SET_IPV4_SRC, ofpact_ipv4, ofpact) \
\
/* Other. */ \
DEFINE_OFPACT(NOTE, ofpact_note, data) \
- DEFINE_OFPACT(EXIT, ofpact_null, ofpact)
+ DEFINE_OFPACT(EXIT, ofpact_null, ofpact) \
+ \
+ /* Instructions */ \
+ /* TODO:XXX Write-Actions */ \
+ DEFINE_OFPACT(WRITE_METADATA, ofpact_metadata, ofpact) \
+ DEFINE_OFPACT(CLEAR_ACTIONS, ofpact_null, ofpact) \
+ DEFINE_OFPACT(GOTO_TABLE, ofpact_goto_table, ofpact)
/* enum ofpact_type, with a member OFPACT_<ENUM> for each action. */
enum OVS_PACKED_ENUM ofpact_type {
*
* Each action is a structure "struct ofpact_*" that begins with "struct
* ofpact", usually followed by other data that describes the action. Actions
- * are padded out to a multiple of OFPACT_ALIGNTO bytes in length. */
+ * are padded out to a multiple of OFPACT_ALIGNTO bytes in length.
+ *
+ * The 'compat' member is special:
+ *
+ * - Most "struct ofpact"s correspond to one particular kind of OpenFlow
+ * action, at least in a given OpenFlow version. For example,
+ * OFPACT_SET_VLAN_VID corresponds to OFPAT10_SET_VLAN_VID in OpenFlow
+ * 1.0.
+ *
+ * For such actions, the 'compat' member is not meaningful and generally
+ * should be zero.
+ *
+ * - A few "struct ofpact"s correspond to multiple OpenFlow actions. For
+ * example, OFPACT_SET_TUNNEL can be NXAST_SET_TUNNEL or
+ * NXAST_SET_TUNNEL64. In these cases, if the "struct ofpact" originated
+ * from OpenFlow, then we want to make sure that, if it gets translated
+ * back to OpenFlow later, it is translated back to the same action type.
+ * (Otherwise, we'd violate the promise made in DESIGN, in the "Action
+ * Reproduction" section.)
+ *
+ * For such actions, the 'compat' member should be the original action
+ * type. (If the action didn't originate from OpenFlow, then setting
+ * 'compat' to zero should be fine: code to translate the ofpact to
+ * OpenFlow must tolerate this case.)
+ */
struct ofpact {
enum ofpact_type type; /* OFPACT_*. */
enum ofputil_action_code compat; /* Original type when added, if any. */
\f
/* Action structure for each OFPACT_*. */
-/* OFPACT_STRIP_VLAN, OFPACT_POP_QUEUE, OFPACT_EXIT.
+/* OFPACT_STRIP_VLAN, OFPACT_POP_QUEUE, OFPACT_EXIT, OFPACT_CLEAR_ACTIONS.
*
- * Used for OFPAT10_STRIP_VLAN, NXAST_DEC_TTL, NXAST_POP_QUEUE, NXAST_EXIT.
+ * Used for OFPAT10_STRIP_VLAN, NXAST_POP_QUEUE, NXAST_EXIT,
+ * OFPAT11_POP_VLAN, OFPIT11_CLEAR_ACTIONS.
*
* Action structure for actions that do not have any extra data beyond the
* action type. */
/* OFPACT_REG_LOAD.
*
- * Used for NXAST_REG_LOAD. */
+ * Used for NXAST_REG_LOAD, OFPAT12_SET_FIELD. */
struct ofpact_reg_load {
struct ofpact ofpact;
struct mf_subfield dst;
- uint64_t value;
+ union mf_subvalue subvalue; /* Least-significant bits are used. */
};
/* OFPACT_SET_TUNNEL.
uint16_t fin_hard_timeout;
};
+/* OFPACT_WRITE_METADATA.
+ *
+ * Used for NXAST_WRITE_METADATA. */
+struct ofpact_metadata {
+ struct ofpact ofpact;
+ ovs_be64 metadata;
+ ovs_be64 mask;
+};
+
/* OFPACT_RESUBMIT.
*
* Used for NXAST_RESUBMIT, NXAST_RESUBMIT_TABLE. */
/* OFPACT_DEC_TTL.
*
- * Used for NXAST_DEC_TTL and NXAST_DEC_TTL_CNT_IDS. */
+ * Used for OFPAT11_DEC_NW_TTL, NXAST_DEC_TTL and NXAST_DEC_TTL_CNT_IDS. */
struct ofpact_cnt_ids {
struct ofpact ofpact;
/* Controller ids. */
unsigned int n_controllers;
uint16_t cnt_ids[];
+};
+/* OFPACT_GOTO_TABLE
+ *
+ * Used for OFPIT11_GOTO_TABLE */
+struct ofpact_goto_table {
+ struct ofpact ofpact;
+ uint8_t table_id;
};
/* Converting OpenFlow to ofpacts. */
struct ofpbuf *ofpacts);
enum ofperr ofpacts_check(const struct ofpact[], size_t ofpacts_len,
const struct flow *, int max_ports);
+enum ofperr ofpacts_verify(const struct ofpact ofpacts[], size_t ofpacts_len);
/* Converting ofpacts to OpenFlow. */
void ofpacts_put_openflow10(const struct ofpact[], size_t ofpacts_len,
#undef DEFINE_INST
};
+
+static inline bool
+ofpact_is_instruction(const struct ofpact *a)
+{
+ /* TODO:XXX Write-Actions */
+ return a->type == OFPACT_CLEAR_ACTIONS
+ || a->type == OFPACT_WRITE_METADATA
+ || a->type == OFPACT_GOTO_TABLE;
+}
+
const char *ofpact_instruction_name_from_type(enum ovs_instruction_type type);
int ofpact_instruction_type_from_name(const char *name);
+void ofpact_set_field_init(struct ofpact_reg_load *load,
+ const struct mf_field *mf, const void *src);
+
#endif /* ofp-actions.h */