/* Basic decoding and length validation of OpenFlow messages. */
enum ofputil_msg_code {
- OFPUTIL_INVALID,
+ OFPUTIL_MSG_INVALID,
/* OFPT_* messages. */
OFPUTIL_OFPT_HELLO,
const struct ofputil_msg_type **);
enum ofputil_msg_code ofputil_msg_type_code(const struct ofputil_msg_type *);
const char *ofputil_msg_type_name(const struct ofputil_msg_type *);
+int ofputil_check_output_port(uint16_t ofp_port, int max_ports);
/* Converting OFPFW_NW_SRC_MASK and OFPFW_NW_DST_MASK wildcard bit counts to
* and from IP bitmasks. */
int ofputil_netmask_to_wcbits(ovs_be32 netmask);
/* Work with OpenFlow 1.0 ofp_match. */
+void ofputil_wildcard_from_openflow(uint32_t ofpfw, struct flow_wildcards *);
void ofputil_cls_rule_from_match(const struct ofp_match *,
unsigned int priority, struct cls_rule *);
void ofputil_normalize_rule(struct cls_rule *, enum nx_flow_format);
uint32_t duration_nsec;
uint16_t idle_timeout;
uint16_t hard_timeout;
- uint64_t packet_count;
- uint64_t byte_count;
+ uint64_t packet_count; /* Packet count, UINT64_MAX if unknown. */
+ uint64_t byte_count; /* Byte count, UINT64_MAX if unknown. */
union ofp_action *actions;
size_t n_actions;
};
int ofputil_decode_flow_stats_reply(struct ofputil_flow_stats *,
struct ofpbuf *msg);
+void ofputil_append_flow_stats_reply(const struct ofputil_flow_stats *,
+ struct list *replies);
+
+/* Aggregate stats reply, independent of flow format. */
+struct ofputil_aggregate_stats {
+ uint64_t packet_count; /* Packet count, UINT64_MAX if unknown. */
+ uint64_t byte_count; /* Byte count, UINT64_MAX if unknown. */
+ uint32_t flow_count;
+};
+
+struct ofpbuf *ofputil_encode_aggregate_stats_reply(
+ const struct ofputil_aggregate_stats *stats,
+ const struct ofp_stats_msg *request);
/* Flow removed message, independent of flow format. */
struct ofputil_flow_removed {
uint32_t duration_sec;
uint32_t duration_nsec;
uint16_t idle_timeout;
- uint64_t packet_count;
- uint64_t byte_count;
+ uint64_t packet_count; /* Packet count, UINT64_MAX if unknown. */
+ uint64_t byte_count; /* Byte count, UINT64_MAX if unknown. */
};
int ofputil_decode_flow_removed(struct ofputil_flow_removed *,
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 **);
+void *ofputil_make_stats_request(size_t openflow_len, uint16_t type,
+ uint32_t subtype, struct ofpbuf **);
+void *ofputil_make_stats_reply(size_t openflow_len,
+ const struct ofp_stats_msg *request,
+ struct ofpbuf **);
+
+void ofputil_start_stats_reply(const struct ofp_stats_msg *request,
+ struct list *);
+struct ofpbuf *ofputil_reserve_stats_reply(size_t len, struct list *);
+void *ofputil_append_stats_reply(size_t len, struct list *);
const void *ofputil_stats_body(const struct ofp_header *);
size_t ofputil_stats_body_len(const struct ofp_header *);
\f
/* Actions. */
+enum ofputil_action_code {
+ /* OFPAT_* actions. */
+ OFPUTIL_OFPAT_OUTPUT,
+ OFPUTIL_OFPAT_SET_VLAN_VID,
+ OFPUTIL_OFPAT_SET_VLAN_PCP,
+ OFPUTIL_OFPAT_STRIP_VLAN,
+ OFPUTIL_OFPAT_SET_DL_SRC,
+ OFPUTIL_OFPAT_SET_DL_DST,
+ OFPUTIL_OFPAT_SET_NW_SRC,
+ OFPUTIL_OFPAT_SET_NW_DST,
+ OFPUTIL_OFPAT_SET_NW_TOS,
+ OFPUTIL_OFPAT_SET_TP_SRC,
+ OFPUTIL_OFPAT_SET_TP_DST,
+ OFPUTIL_OFPAT_ENQUEUE,
+
+ /* NXAST_* actions. */
+ OFPUTIL_NXAST_RESUBMIT,
+ OFPUTIL_NXAST_SET_TUNNEL,
+ OFPUTIL_NXAST_SET_QUEUE,
+ OFPUTIL_NXAST_POP_QUEUE,
+ OFPUTIL_NXAST_REG_MOVE,
+ OFPUTIL_NXAST_REG_LOAD,
+ OFPUTIL_NXAST_NOTE,
+ OFPUTIL_NXAST_SET_TUNNEL64,
+ OFPUTIL_NXAST_MULTIPATH,
+ OFPUTIL_NXAST_AUTOPATH,
+ OFPUTIL_NXAST_BUNDLE,
+ OFPUTIL_NXAST_BUNDLE_LOAD,
+};
+
+int ofputil_decode_action(const union ofp_action *);
+enum ofputil_action_code ofputil_decode_action_unsafe(
+ const union ofp_action *);
+
#define OFP_ACTION_ALIGN 8 /* Alignment of ofp_actions. */
-struct actions_iterator {
- const union ofp_action *pos, *end;
-};
-const union ofp_action *actions_first(struct actions_iterator *,
- const union ofp_action *,
- size_t n_actions);
-const union ofp_action *actions_next(struct actions_iterator *);
+static inline union ofp_action *
+ofputil_action_next(const union ofp_action *a)
+{
+ return ((union ofp_action *) (void *)
+ ((uint8_t *) a + ntohs(a->header.len)));
+}
+
+static inline bool
+ofputil_action_is_valid(const union ofp_action *a, size_t n_actions)
+{
+ uint16_t len = ntohs(a->header.len);
+ return (!(len % OFP_ACTION_ALIGN)
+ && len >= sizeof *a
+ && len / sizeof *a <= n_actions);
+}
+
+/* This macro is careful to check for actions with bad lengths. */
+#define OFPUTIL_ACTION_FOR_EACH(ITER, LEFT, ACTIONS, N_ACTIONS) \
+ for ((ITER) = (ACTIONS), (LEFT) = (N_ACTIONS); \
+ (LEFT) > 0 && ofputil_action_is_valid(ITER, LEFT); \
+ ((LEFT) -= ntohs((ITER)->header.len) / sizeof(union ofp_action), \
+ (ITER) = ofputil_action_next(ITER)))
+
+/* This macro does not check for actions with bad lengths. It should only be
+ * used with actions from trusted sources or with actions that have already
+ * been validated (e.g. with OFPUTIL_ACTION_FOR_EACH). */
+#define OFPUTIL_ACTION_FOR_EACH_UNSAFE(ITER, LEFT, ACTIONS, N_ACTIONS) \
+ for ((ITER) = (ACTIONS), (LEFT) = (N_ACTIONS); \
+ (LEFT) > 0; \
+ ((LEFT) -= ntohs((ITER)->header.len) / sizeof(union ofp_action), \
+ (ITER) = ofputil_action_next(ITER)))
int validate_actions(const union ofp_action *, size_t n_actions,
const struct flow *, int max_ports);
int ofputil_pull_actions(struct ofpbuf *, unsigned int actions_len,
union ofp_action **, size_t *);
+
+bool ofputil_actions_equal(const union ofp_action *a, size_t n_a,
+ const union ofp_action *b, size_t n_b);
+union ofp_action *ofputil_actions_clone(const union ofp_action *, size_t n);
\f
/* OpenFlow vendors.
*
git://git.onelab.eu / sliver-openvswitch.git / blobdiff