struct cls_rule;
struct ofpbuf;
-/* Alignment of ofp_actions. */
-#define OFP_ACTION_ALIGN 8
-
/* Basic decoding and length validation of OpenFlow messages. */
enum ofputil_msg_code {
OFPUTIL_INVALID,
/* Work with OpenFlow 1.0 ofp_match. */
void ofputil_cls_rule_from_match(const struct ofp_match *,
unsigned int priority, enum nx_flow_format,
- uint64_t cookie, struct cls_rule *);
+ ovs_be64 cookie, struct cls_rule *);
void ofputil_cls_rule_to_match(const struct cls_rule *, enum nx_flow_format,
- struct ofp_match *);
+ struct ofp_match *,
+ ovs_be64 cookie_in, ovs_be64 *cookie_out);
void normalize_match(struct ofp_match *);
char *ofp_match_to_literal_string(const struct ofp_match *match);
+/* dl_type translation between OpenFlow and 'struct flow' format. */
+ovs_be16 ofputil_dl_type_to_openflow(ovs_be16 flow_dl_type);
+ovs_be16 ofputil_dl_type_from_openflow(ovs_be16 ofp_dl_type);
+
+/* Flow formats. */
+bool ofputil_flow_format_is_valid(enum nx_flow_format);
+const char *ofputil_flow_format_to_string(enum nx_flow_format);
+int ofputil_flow_format_from_string(const char *);
+enum nx_flow_format ofputil_min_flow_format(const struct cls_rule *,
+ bool cookie_support,
+ ovs_be64 cookie);
+
+struct ofpbuf *ofputil_make_set_flow_format(enum nx_flow_format);
+
+/* Flow format independent flow_mod. */
+struct flow_mod {
+ struct cls_rule cr;
+ ovs_be64 cookie;
+ uint16_t command;
+ uint16_t idle_timeout;
+ uint16_t hard_timeout;
+ uint32_t buffer_id;
+ uint16_t out_port;
+ uint16_t flags;
+ union ofp_action *actions;
+ size_t n_actions;
+};
+
+int ofputil_decode_flow_mod(struct flow_mod *, const struct ofp_header *,
+ enum nx_flow_format);
+struct ofpbuf *ofputil_encode_flow_mod(const struct flow_mod *,
+ enum nx_flow_format);
+
+/* Flow stats or aggregate stats request, independent of flow format. */
+struct flow_stats_request {
+ bool aggregate; /* Aggregate results? */
+ struct cls_rule match;
+ uint16_t out_port;
+ uint8_t table_id;
+};
+
+int ofputil_decode_flow_stats_request(struct flow_stats_request *,
+ const struct ofp_header *,
+ enum nx_flow_format);
+struct ofpbuf *ofputil_encode_flow_stats_request(
+ const struct flow_stats_request *, enum nx_flow_format);
+
+/* Flow removed message, independent of flow format. */
+struct ofputil_flow_removed {
+ struct cls_rule rule;
+ ovs_be64 cookie;
+ uint8_t reason; /* One of OFPRR_*. */
+ uint32_t duration_sec;
+ uint32_t duration_nsec;
+ uint16_t idle_timeout;
+ uint64_t packet_count;
+ uint64_t byte_count;
+};
+
+int ofputil_decode_flow_removed(struct ofputil_flow_removed *,
+ const struct ofp_header *,
+ enum nx_flow_format);
+
/* OpenFlow protocol utility functions. */
void *make_openflow(size_t openflow_len, uint8_t type, struct ofpbuf **);
void *make_nxmsg(size_t openflow_len, uint32_t subtype, struct ofpbuf **);
+
void *make_openflow_xid(size_t openflow_len, uint8_t type,
ovs_be32 xid, struct ofpbuf **);
void *make_nxmsg_xid(size_t openflow_len, uint32_t subtype, ovs_be32 xid,
struct ofpbuf **);
+
void *put_openflow(size_t openflow_len, uint8_t type, struct ofpbuf *);
void *put_openflow_xid(size_t openflow_len, uint8_t type, ovs_be32 xid,
struct ofpbuf *);
+
+void *put_nxmsg(size_t openflow_len, uint32_t subtype, struct ofpbuf *);
+void *put_nxmsg_xid(size_t openflow_len, uint32_t subtype, ovs_be32 xid,
+ struct ofpbuf *);
+
void update_openflow_length(struct ofpbuf *);
+void *ofputil_make_stats_request(size_t body_len, uint16_t type,
+ struct ofpbuf **);
+void *ofputil_make_nxstats_request(size_t openflow_len, uint32_t subtype,
+ struct ofpbuf **);
+
const void *ofputil_stats_body(const struct ofp_header *);
-size_t ofputil_stats_body_len(const struct ofp_header *oh);
+size_t ofputil_stats_body_len(const struct ofp_header *);
+
+const void *ofputil_nxstats_body(const struct ofp_header *);
+size_t ofputil_nxstats_body_len(const struct ofp_header *);
struct ofpbuf *make_flow_mod(uint16_t command, const struct cls_rule *,
size_t actions_len);
const struct ofp_flow_stats *flow_stats_first(struct flow_stats_iterator *,
const struct ofp_stats_reply *);
const struct ofp_flow_stats *flow_stats_next(struct flow_stats_iterator *);
+\f
+/* Actions. */
+
+#define OFP_ACTION_ALIGN 8 /* Alignment of ofp_actions. */
struct actions_iterator {
const union ofp_action *pos, *end;
const union ofp_action *,
size_t n_actions);
const union ofp_action *actions_next(struct actions_iterator *);
+
int validate_actions(const union ofp_action *, size_t n_actions,
const struct flow *, int max_ports);
bool action_outputs_to_port(const union ofp_action *, uint16_t port);
return error & 0xffff;
}
-struct ofpbuf *make_ofp_error_msg(int error, const struct ofp_header *);
+struct ofpbuf *ofputil_encode_error_msg(int error, const struct ofp_header *);
+int ofputil_decode_error_msg(const struct ofp_header *, size_t *payload_ofs);
+
+/* String versions of errors. */
+void ofputil_format_error(struct ds *, int error);
+char *ofputil_error_to_string(int error);
#endif /* ofp-util.h */