#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
-#include "classifier.h"
#include "compiler.h"
#include "flow.h"
+#include "list.h"
#include "match.h"
#include "netdev.h"
#include "openflow/nicira-ext.h"
#include "type-props.h"
struct ofpbuf;
+union ofp_action;
+struct ofpact_set_field;
/* Port numbers. */
enum ofperr ofputil_port_from_ofp11(ovs_be32 ofp11_port,
ofp_port_t *ofp10_port);
ovs_be32 ofputil_port_to_ofp11(ofp_port_t ofp10_port);
-enum ofperr ofputil_check_output_port(ofp_port_t ofp_port,
- ofp_port_t max_ports);
bool ofputil_port_from_string(const char *, ofp_port_t *portp);
void ofputil_format_port(ofp_port_t port, struct ds *);
void ofputil_port_to_string(ofp_port_t, char namebuf[OFP_MAX_PORT_NAME_LEN],
size_t bufsize);
+/* Group numbers. */
+enum { MAX_GROUP_NAME_LEN = INT_STRLEN(uint32_t) };
+bool ofputil_group_from_string(const char *, uint32_t *group_id);
+void ofputil_format_group(uint32_t group_id, struct ds *);
+void ofputil_group_to_string(uint32_t group_id,
+ char namebuf[MAX_GROUP_NAME_LEN + 1],
+ size_t bufsize);
+
/* Converting OFPFW10_NW_SRC_MASK and OFPFW10_NW_DST_MASK wildcard bit counts
* to and from IP bitmasks. */
ovs_be32 ofputil_wcbits_to_netmask(int wcbits);
OFPUTIL_P_OF10_NXM_TID = 1 << 3,
#define OFPUTIL_P_OF10_STD_ANY (OFPUTIL_P_OF10_STD | OFPUTIL_P_OF10_STD_TID)
#define OFPUTIL_P_OF10_NXM_ANY (OFPUTIL_P_OF10_NXM | OFPUTIL_P_OF10_NXM_TID)
+#define OFPUTIL_P_OF10_ANY (OFPUTIL_P_OF10_STD_ANY | OFPUTIL_P_OF10_NXM_ANY)
+
+ /* OpenFlow 1.1 protocol.
+ *
+ * We only support the standard OpenFlow 1.1 flow format.
+ *
+ * OpenFlow 1.1 always operates with an equivalent of the
+ * nx_flow_mod_table_id Nicira extension enabled, so there is no "TID"
+ * variant. */
+ OFPUTIL_P_OF11_STD = 1 << 4,
/* OpenFlow 1.2+ protocols (only one variant each).
*
* OpenFlow 1.2+ always operates with an equivalent of the
* nx_flow_mod_table_id Nicira extension enabled, so there is no "TID"
* variant. */
- OFPUTIL_P_OF12_OXM = 1 << 4,
- OFPUTIL_P_OF13_OXM = 1 << 5,
+ OFPUTIL_P_OF12_OXM = 1 << 5,
+ OFPUTIL_P_OF13_OXM = 1 << 6,
#define OFPUTIL_P_ANY_OXM (OFPUTIL_P_OF12_OXM | OFPUTIL_P_OF13_OXM)
+#define OFPUTIL_P_NXM_OF11_UP (OFPUTIL_P_OF10_NXM_ANY | OFPUTIL_P_OF11_STD | \
+ OFPUTIL_P_ANY_OXM)
+
+#define OFPUTIL_P_NXM_OXM_ANY (OFPUTIL_P_OF10_NXM_ANY | OFPUTIL_P_ANY_OXM)
+
+#define OFPUTIL_P_OF11_UP (OFPUTIL_P_OF11_STD | OFPUTIL_P_ANY_OXM)
+
+#define OFPUTIL_P_OF12_UP (OFPUTIL_P_ANY_OXM)
+
+#define OFPUTIL_P_OF13_UP (OFPUTIL_P_OF13_OXM)
+
/* All protocols. */
-#define OFPUTIL_P_ANY ((1 << 6) - 1)
+#define OFPUTIL_P_ANY ((1 << 7) - 1)
/* Protocols in which a specific table may be specified in flow_mods. */
#define OFPUTIL_P_TID (OFPUTIL_P_OF10_STD_TID | \
OFPUTIL_P_OF10_NXM_TID | \
+ OFPUTIL_P_OF11_STD | \
OFPUTIL_P_ANY_OXM)
};
const char *ofputil_protocol_to_string(enum ofputil_protocol);
char *ofputil_protocols_to_string(enum ofputil_protocol);
enum ofputil_protocol ofputil_protocols_from_string(const char *);
-enum ofputil_protocol ofputil_usable_protocols(const struct match *);
void ofputil_format_version(struct ds *, enum ofp_version);
void ofputil_format_version_name(struct ds *, enum ofp_version);
uint16_t *padded_match_len);
enum ofperr ofputil_match_from_ofp11_match(const struct ofp11_match *,
struct match *);
+int ofputil_put_ofp11_match(struct ofpbuf *, const struct match *,
+ enum ofputil_protocol);
void ofputil_match_to_ofp11_match(const struct match *, struct ofp11_match *);
+int ofputil_match_typical_len(enum ofputil_protocol);
/* dl_type translation between OpenFlow and 'struct flow' format. */
ovs_be16 ofputil_dl_type_to_openflow(ovs_be16 flow_dl_type);
/* NXT_FLOW_MOD_TABLE_ID extension. */
struct ofpbuf *ofputil_make_flow_mod_table_id(bool flow_mod_table_id);
+/* Protocol-independent flow_mod flags. */
+enum ofputil_flow_mod_flags {
+ /* Flags that are maintained with a flow as part of its state.
+ *
+ * (OFPUTIL_FF_EMERG would be here too, if OVS supported it.) */
+ OFPUTIL_FF_SEND_FLOW_REM = 1 << 0, /* All versions. */
+ OFPUTIL_FF_NO_PKT_COUNTS = 1 << 1, /* OpenFlow 1.3+. */
+ OFPUTIL_FF_NO_BYT_COUNTS = 1 << 2, /* OpenFlow 1.3+. */
+#define OFPUTIL_FF_STATE (OFPUTIL_FF_SEND_FLOW_REM \
+ | OFPUTIL_FF_NO_PKT_COUNTS \
+ | OFPUTIL_FF_NO_BYT_COUNTS)
+
+ /* Flags that affect flow_mod behavior but are not part of flow state. */
+ OFPUTIL_FF_CHECK_OVERLAP = 1 << 3, /* All versions. */
+ OFPUTIL_FF_EMERG = 1 << 4, /* OpenFlow 1.0 only. */
+ OFPUTIL_FF_RESET_COUNTS = 1 << 5, /* OpenFlow 1.2+. */
+};
+
/* Protocol-independent flow_mod.
*
* The handling of cookies across multiple versions of OpenFlow is a bit
- * confusing. A full description of Open vSwitch's cookie handling is
- * in the DESIGN file. The following table shows the expected values of
- * the cookie-related fields for the different flow_mod commands in
- * OpenFlow 1.0 ("OF10") and NXM. "<used>" and "-" indicate a value
- * that may be populated and an ignored field, respectively.
- *
- * cookie cookie_mask new_cookie
- * ====== =========== ==========
- * OF10 Add - 0 <used>
- * OF10 Modify - 0 <used>
- * OF10 Delete - 0 -
- * NXM Add - 0 <used>
- * NXM Modify <used> <used> <used>
- * NXM Delete <used> <used> -
- */
+ * confusing. See DESIGN for the details. */
struct ofputil_flow_mod {
+ struct list list_node; /* For queuing flow_mods. */
+
struct match match;
unsigned int priority;
+
+ /* Cookie matching. The flow_mod affects only flows that have cookies that
+ * bitwise match 'cookie' bits in positions where 'cookie_mask has 1-bits.
+ *
+ * 'cookie_mask' should be zero for OFPFC_ADD flow_mods. */
ovs_be64 cookie; /* Cookie bits to match. */
ovs_be64 cookie_mask; /* 1-bit in each 'cookie' bit to match. */
- ovs_be64 new_cookie; /* New cookie to install or -1. */
+
+ /* Cookie changes.
+ *
+ * OFPFC_ADD uses 'new_cookie' as the new flow's cookie. 'new_cookie'
+ * should not be UINT64_MAX.
+ *
+ * OFPFC_MODIFY and OFPFC_MODIFY_STRICT have two cases:
+ *
+ * - If one or more matching flows exist and 'modify_cookie' is true,
+ * then the flow_mod changes the existing flows' cookies to
+ * 'new_cookie'. 'new_cookie' should not be UINT64_MAX.
+ *
+ * - If no matching flow exists, 'new_cookie' is not UINT64_MAX, and
+ * 'cookie_mask' is 0, then the flow_mod adds a new flow with
+ * 'new_cookie' as its cookie.
+ */
+ ovs_be64 new_cookie; /* New cookie to install or UINT64_MAX. */
+ bool modify_cookie; /* Set cookie of existing flow to 'new_cookie'? */
+
uint8_t table_id;
uint16_t command;
uint16_t idle_timeout;
uint16_t hard_timeout;
uint32_t buffer_id;
ofp_port_t out_port;
- uint16_t flags;
+ uint32_t out_group;
+ enum ofputil_flow_mod_flags flags;
struct ofpact *ofpacts; /* Series of "struct ofpact"s. */
size_t ofpacts_len; /* Length of ofpacts, in bytes. */
};
enum ofperr ofputil_decode_flow_mod(struct ofputil_flow_mod *,
const struct ofp_header *,
enum ofputil_protocol,
- struct ofpbuf *ofpacts);
+ struct ofpbuf *ofpacts,
+ ofp_port_t max_port,
+ uint8_t max_table);
struct ofpbuf *ofputil_encode_flow_mod(const struct ofputil_flow_mod *,
enum ofputil_protocol);
-enum ofputil_protocol ofputil_flow_mod_usable_protocols(
- const struct ofputil_flow_mod *fms, size_t n_fms);
-
/* Flow stats or aggregate stats request, independent of protocol. */
struct ofputil_flow_stats_request {
bool aggregate; /* Aggregate results? */
ovs_be64 cookie;
ovs_be64 cookie_mask;
ofp_port_t out_port;
+ uint32_t out_group;
uint8_t table_id;
};
struct ofputil_flow_stats_request *, const struct ofp_header *);
struct ofpbuf *ofputil_encode_flow_stats_request(
const struct ofputil_flow_stats_request *, enum ofputil_protocol);
-enum ofputil_protocol ofputil_flow_stats_request_usable_protocols(
- const struct ofputil_flow_stats_request *);
/* Flow stats reply, independent of protocol. */
struct ofputil_flow_stats {
struct match match;
ovs_be64 cookie;
uint8_t table_id;
- uint32_t duration_sec;
- uint32_t duration_nsec;
uint16_t priority;
uint16_t idle_timeout;
uint16_t hard_timeout;
+ uint32_t duration_sec;
+ uint32_t duration_nsec;
int idle_age; /* Seconds since last packet, -1 if unknown. */
int hard_age; /* Seconds since last change, -1 if unknown. */
uint64_t packet_count; /* Packet count, UINT64_MAX if unknown. */
uint64_t byte_count; /* Byte count, UINT64_MAX if unknown. */
struct ofpact *ofpacts;
size_t ofpacts_len;
- uint16_t flags; /* Added for OF 1.3 */
+ enum ofputil_flow_mod_flags flags;
};
int ofputil_decode_flow_stats_reply(struct ofputil_flow_stats *,
/* Flow removed message, independent of protocol. */
struct ofputil_flow_removed {
struct match match;
- uint16_t priority;
ovs_be64 cookie;
+ uint16_t priority;
uint8_t reason; /* One of OFPRR_*. */
uint8_t table_id; /* 255 if message didn't include table ID. */
uint32_t duration_sec;
/* Abstract packet-in message. */
struct ofputil_packet_in {
+ /* Packet data and metadata.
+ *
+ * To save bandwidth, in some cases a switch may send only the first
+ * several bytes of a packet, indicated by 'packet_len < total_len'. When
+ * the full packet is included, 'packet_len == total_len'. */
const void *packet;
- size_t packet_len;
-
- enum ofp_packet_in_reason reason; /* One of OFPR_*. */
- uint16_t controller_id; /* Controller ID to send to. */
- uint8_t table_id;
- ovs_be64 cookie;
+ size_t packet_len; /* Number of bytes in 'packet'. */
+ size_t total_len; /* Size of packet, pre-truncation. */
+ struct flow_metadata fmd;
+ /* Identifies a buffer in the switch that contains the full packet, to
+ * allow the controller to reference it later without having to send the
+ * entire packet back to the switch.
+ *
+ * UINT32_MAX indicates that the packet is not buffered in the switch. A
+ * switch should only use UINT32_MAX when it sends the entire packet. */
uint32_t buffer_id;
- int send_len;
- uint16_t total_len; /* Full length of frame. */
- struct flow_metadata fmd; /* Metadata at creation time. */
+ /* Reason that the packet-in is being sent. */
+ enum ofp_packet_in_reason reason; /* One of OFPR_*. */
+
+ /* Information about the OpenFlow flow that triggered the packet-in.
+ *
+ * A packet-in triggered by a flow table miss has no associated flow. In
+ * that case, 'cookie' is UINT64_MAX. */
+ uint8_t table_id; /* OpenFlow table ID. */
+ ovs_be64 cookie; /* Flow's cookie. */
};
enum ofperr ofputil_decode_packet_in(struct ofputil_packet_in *,
struct ofpbuf *ofputil_encode_port_mod(const struct ofputil_port_mod *,
enum ofputil_protocol);
+/* Abstract ofp_table_mod. */
+struct ofputil_table_mod {
+ uint8_t table_id; /* ID of the table, 0xff indicates all tables. */
+ uint32_t config;
+};
+
+enum ofperr ofputil_decode_table_mod(const struct ofp_header *,
+ struct ofputil_table_mod *);
+struct ofpbuf *ofputil_encode_table_mod(const struct ofputil_table_mod *,
+ enum ofputil_protocol);
+
/* Meter band configuration for all supported band types. */
struct ofputil_meter_band {
uint16_t type;
uint64_t generation_id;
};
+struct ofputil_role_status {
+ enum ofp12_controller_role role;
+ enum ofp14_controller_role_reason reason;
+ uint64_t generation_id;
+};
+
enum ofperr ofputil_decode_role_message(const struct ofp_header *,
struct ofputil_role_request *);
struct ofpbuf *ofputil_encode_role_reply(const struct ofp_header *,
const struct ofputil_role_request *);
+struct ofpbuf *ofputil_encode_role_status(
+ const struct ofputil_role_status *status,
+ enum ofputil_protocol protocol);
+
+enum ofperr ofputil_decode_role_status(const struct ofp_header *oh,
+ struct ofputil_role_status *rs);
/* Abstract table stats.
*
* For now we use ofp12_table_stats as a superset of the other protocol
const struct ofp12_table_stats[], int n,
const struct ofp_header *request);
+/* Queue configuration request. */
+struct ofpbuf *ofputil_encode_queue_get_config_request(enum ofp_version,
+ ofp_port_t port);
+enum ofperr ofputil_decode_queue_get_config_request(const struct ofp_header *,
+ ofp_port_t *port);
+
+/* Queue configuration reply. */
+struct ofputil_queue_config {
+ uint32_t queue_id;
+
+ /* Each of these optional values is expressed in tenths of a percent.
+ * Values greater than 1000 indicate that the feature is disabled.
+ * UINT16_MAX indicates that the value is omitted. */
+ uint16_t min_rate;
+ uint16_t max_rate;
+};
+
+struct ofpbuf *ofputil_encode_queue_get_config_reply(
+ const struct ofp_header *request);
+void ofputil_append_queue_get_config_reply(
+ struct ofpbuf *reply, const struct ofputil_queue_config *);
+
+enum ofperr ofputil_decode_queue_get_config_reply(struct ofpbuf *reply,
+ ofp_port_t *);
+int ofputil_pull_queue_get_config_reply(struct ofpbuf *reply,
+ struct ofputil_queue_config *);
+
+
/* Abstract nx_flow_monitor_request. */
struct ofputil_flow_monitor_request {
uint32_t id;
uint16_t idle_timeout;
uint16_t hard_timeout;
uint8_t table_id;
+ uint16_t priority;
ovs_be64 cookie;
struct match *match;
- uint16_t priority;
struct ofpact *ofpacts;
size_t ofpacts_len;
};
int ofputil_action_code_from_name(const char *);
+const char * ofputil_action_name_from_code(enum ofputil_action_code code);
void *ofputil_put_action(enum ofputil_action_code, struct ofpbuf *buf);
struct ofputil_queue_stats {
ofp_port_t port_no;
uint32_t queue_id;
- struct netdev_queue_stats stats;
+
+ /* Values of unsupported statistics are set to all-1-bits (UINT64_MAX). */
+ uint64_t tx_bytes;
+ uint64_t tx_packets;
+ uint64_t tx_errors;
+
+ /* UINT32_MAX if unknown. */
+ uint32_t duration_sec;
+ uint32_t duration_nsec;
};
size_t ofputil_count_queue_stats(const struct ofp_header *);
void ofputil_append_queue_stat(struct list *replies,
const struct ofputil_queue_stats *oqs);
+/* Bucket for use in groups. */
+struct ofputil_bucket {
+ struct list list_node;
+ uint16_t weight; /* Relative weight, for "select" groups. */
+ ofp_port_t watch_port; /* Port whose state affects whether this bucket
+ * is live. Only required for fast failover
+ * groups. */
+ uint32_t watch_group; /* Group whose state affects whether this
+ * bucket is live. Only required for fast
+ * failover groups. */
+ struct ofpact *ofpacts; /* Series of "struct ofpact"s. */
+ size_t ofpacts_len; /* Length of ofpacts, in bytes. */
+};
+
+/* Protocol-independent group_mod. */
+struct ofputil_group_mod {
+ uint16_t command; /* One of OFPGC11_*. */
+ uint8_t type; /* One of OFPGT11_*. */
+ uint32_t group_id; /* Group identifier. */
+ struct list buckets; /* Contains "struct ofputil_bucket"s. */
+};
+
+struct bucket_counter {
+ uint64_t packet_count; /* Number of packets processed by bucket. */
+ uint64_t byte_count; /* Number of bytes processed by bucket. */
+};
+
+/* Group stats reply, independent of protocol. */
+struct ofputil_group_stats {
+ uint32_t group_id; /* Group identifier. */
+ uint32_t ref_count;
+ uint64_t packet_count; /* Packet count, UINT64_MAX if unknown. */
+ uint64_t byte_count; /* Byte count, UINT64_MAX if unknown. */
+ uint32_t duration_sec; /* UINT32_MAX if unknown. */
+ uint32_t duration_nsec;
+ uint32_t n_buckets;
+ struct bucket_counter *bucket_stats;
+};
+
+/* Group features reply, independent of protocol.
+ *
+ * Only OF1.2 and later support group features replies. */
+struct ofputil_group_features {
+ uint32_t types; /* Bitmap of OFPGT_* values supported. */
+ uint32_t capabilities; /* Bitmap of OFPGFC12_* capability supported. */
+ uint32_t max_groups[4]; /* Maximum number of groups for each type. */
+
+ /* Bitmaps of OFPAT_* that are supported. OF1.2+ actions only. */
+ uint32_t actions[4];
+};
+
+/* Group desc reply, independent of protocol. */
+struct ofputil_group_desc {
+ uint8_t type; /* One of OFPGT_*. */
+ uint32_t group_id; /* Group identifier. */
+ struct list buckets; /* Contains "struct ofputil_bucket"s. */
+};
+
+void ofputil_bucket_list_destroy(struct list *buckets);
+
+static inline bool
+ofputil_bucket_has_liveness(const struct ofputil_bucket *bucket)
+{
+ return (bucket->watch_port != OFPP_ANY ||
+ bucket->watch_group != OFPG_ANY);
+}
+
+struct ofpbuf *ofputil_encode_group_stats_request(enum ofp_version,
+ uint32_t group_id);
+enum ofperr ofputil_decode_group_stats_request(
+ const struct ofp_header *request, uint32_t *group_id);
+void ofputil_append_group_stats(struct list *replies,
+ const struct ofputil_group_stats *);
+struct ofpbuf *ofputil_encode_group_features_request(enum ofp_version);
+struct ofpbuf *ofputil_encode_group_features_reply(
+ const struct ofputil_group_features *, const struct ofp_header *request);
+void ofputil_decode_group_features_reply(const struct ofp_header *,
+ struct ofputil_group_features *);
+struct ofpbuf *ofputil_encode_group_mod(enum ofp_version ofp_version,
+ const struct ofputil_group_mod *gm);
+
+enum ofperr ofputil_decode_group_mod(const struct ofp_header *,
+ struct ofputil_group_mod *);
+
+int ofputil_decode_group_stats_reply(struct ofpbuf *,
+ struct ofputil_group_stats *);
+
+int ofputil_decode_group_desc_reply(struct ofputil_group_desc *,
+ struct ofpbuf *, enum ofp_version);
+
+void ofputil_append_group_desc_reply(const struct ofputil_group_desc *,
+ struct list *buckets,
+ struct list *replies);
+struct ofpbuf *ofputil_encode_group_desc_request(enum ofp_version);
+
#endif /* ofp-util.h */