#include "nx-match.h"
#include "ofp-actions.h"
#include "ofp-errors.h"
+#include "ofp-msgs.h"
#include "ofp-util.h"
#include "ofpbuf.h"
#include "packets.h"
void
ofputil_wildcard_from_ofpfw10(uint32_t ofpfw, struct flow_wildcards *wc)
{
- BUILD_ASSERT_DECL(FLOW_WC_SEQ == 12);
+ BUILD_ASSERT_DECL(FLOW_WC_SEQ == 14);
/* Initialize most of rule->wc. */
flow_wildcards_init_catchall(wc);
wc->wildcards = (OVS_FORCE flow_wildcards_t) ofpfw & WC_INVARIANTS;
- /* Wildcard fields that aren't defined by ofp10_match or tun_id. */
- wc->wildcards |= (FWW_ARP_SHA | FWW_ARP_THA | FWW_NW_ECN | FWW_NW_TTL
- | FWW_IPV6_LABEL);
+ /* Wildcard fields that aren't defined by ofp10_match. */
+ wc->wildcards |= FWW_NW_ECN | FWW_NW_TTL;
if (ofpfw & OFPFW10_NW_TOS) {
/* OpenFlow 1.0 defines a TOS wildcard, but it's much later in
} else if (rule->wc.vlan_tci_mask & htons(VLAN_CFI)
&& !(rule->flow.vlan_tci & htons(VLAN_CFI))) {
match->dl_vlan = htons(OFP10_VLAN_NONE);
+ ofpfw |= OFPFW10_DL_VLAN_PCP;
} else {
if (!(rule->wc.vlan_tci_mask & htons(VLAN_VID_MASK))) {
ofpfw |= OFPFW10_DL_VLAN;
memset(match->pad2, '\0', sizeof match->pad2);
}
+enum ofperr
+ofputil_pull_ofp11_match(struct ofpbuf *buf, unsigned int priority,
+ struct cls_rule *rule)
+{
+ struct ofp11_match_header *omh;
+ struct ofp11_match *om;
+
+ if (buf->size < sizeof(struct ofp11_match_header)) {
+ return OFPERR_OFPBMC_BAD_LEN;
+ }
+
+ omh = buf->data;
+ switch (ntohs(omh->type)) {
+ case OFPMT_STANDARD:
+ if (omh->length != htons(sizeof *om) || buf->size < sizeof *om) {
+ return OFPERR_OFPBMC_BAD_LEN;
+ }
+ om = ofpbuf_pull(buf, sizeof *om);
+ return ofputil_cls_rule_from_ofp11_match(om, priority, rule);
+
+ default:
+ return OFPERR_OFPBMC_BAD_TYPE;
+ }
+}
+
/* Converts the ofp11_match in 'match' into a cls_rule in 'rule', with the
* given 'priority'. Returns 0 if successful, otherwise an OFPERR_* value. */
enum ofperr
match->in_port = ofputil_port_to_ofp11(rule->flow.in_port);
}
-
memcpy(match->dl_src, rule->flow.dl_src, ETH_ADDR_LEN);
for (i = 0; i < ETH_ADDR_LEN; i++) {
match->dl_src_mask[i] = ~rule->wc.dl_src_mask[i];
? htons(FLOW_DL_TYPE_NONE)
: ofp_dl_type);
}
-
-/* Returns a transaction ID to use for an outgoing OpenFlow message. */
-static ovs_be32
-alloc_xid(void)
-{
- static uint32_t next_xid = 1;
- return htonl(next_xid++);
-}
-\f
-/* Basic parsing of OpenFlow messages. */
-
-struct ofputil_msg_type {
- enum ofputil_msg_code code; /* OFPUTIL_*. */
- uint8_t ofp_version; /* An OpenFlow version or 0 for "any". */
- uint32_t value; /* OFPT_*, OFPST_*, NXT_*, or NXST_*. */
- const char *name; /* e.g. "OFPT_FLOW_REMOVED". */
- unsigned int min_size; /* Minimum total message size in bytes. */
- /* 0 if 'min_size' is the exact size that the message must be. Otherwise,
- * the message may exceed 'min_size' by an even multiple of this value. */
- unsigned int extra_multiple;
-};
-
-/* Represents a malformed OpenFlow message. */
-static const struct ofputil_msg_type ofputil_invalid_type = {
- OFPUTIL_MSG_INVALID, 0, 0, "OFPUTIL_MSG_INVALID", 0, 0
-};
-
-struct ofputil_msg_category {
- const char *name; /* e.g. "OpenFlow message" */
- const struct ofputil_msg_type *types;
- size_t n_types;
- enum ofperr missing_error; /* Error value for missing type. */
-};
-
-static enum ofperr
-ofputil_check_length(const struct ofputil_msg_type *type, unsigned int size)
-{
- switch (type->extra_multiple) {
- case 0:
- if (size != type->min_size) {
- VLOG_WARN_RL(&bad_ofmsg_rl, "received %s with incorrect "
- "length %u (expected length %u)",
- type->name, size, type->min_size);
- return OFPERR_OFPBRC_BAD_LEN;
- }
- return 0;
-
- case 1:
- if (size < type->min_size) {
- VLOG_WARN_RL(&bad_ofmsg_rl, "received %s with incorrect "
- "length %u (expected length at least %u bytes)",
- type->name, size, type->min_size);
- return OFPERR_OFPBRC_BAD_LEN;
- }
- return 0;
-
- default:
- if (size < type->min_size
- || (size - type->min_size) % type->extra_multiple) {
- VLOG_WARN_RL(&bad_ofmsg_rl, "received %s with incorrect "
- "length %u (must be exactly %u bytes or longer "
- "by an integer multiple of %u bytes)",
- type->name, size,
- type->min_size, type->extra_multiple);
- return OFPERR_OFPBRC_BAD_LEN;
- }
- return 0;
- }
-}
-
-static enum ofperr
-ofputil_lookup_openflow_message(const struct ofputil_msg_category *cat,
- uint8_t version, uint32_t value,
- const struct ofputil_msg_type **typep)
-{
- const struct ofputil_msg_type *type;
-
- for (type = cat->types; type < &cat->types[cat->n_types]; type++) {
- if (type->value == value
- && (!type->ofp_version || version == type->ofp_version)) {
- *typep = type;
- return 0;
- }
- }
-
- VLOG_WARN_RL(&bad_ofmsg_rl, "received %s of unknown type %"PRIu32,
- cat->name, value);
- return cat->missing_error;
-}
-
-static enum ofperr
-ofputil_decode_vendor(const struct ofp_header *oh, size_t length,
- const struct ofputil_msg_type **typep)
-{
- static const struct ofputil_msg_type nxt_messages[] = {
- { OFPUTIL_NXT_ROLE_REQUEST, OFP10_VERSION,
- NXT_ROLE_REQUEST, "NXT_ROLE_REQUEST",
- sizeof(struct nx_role_request), 0 },
-
- { OFPUTIL_NXT_ROLE_REPLY, OFP10_VERSION,
- NXT_ROLE_REPLY, "NXT_ROLE_REPLY",
- sizeof(struct nx_role_request), 0 },
-
- { OFPUTIL_NXT_SET_FLOW_FORMAT, OFP10_VERSION,
- NXT_SET_FLOW_FORMAT, "NXT_SET_FLOW_FORMAT",
- sizeof(struct nx_set_flow_format), 0 },
-
- { OFPUTIL_NXT_SET_PACKET_IN_FORMAT, OFP10_VERSION,
- NXT_SET_PACKET_IN_FORMAT, "NXT_SET_PACKET_IN_FORMAT",
- sizeof(struct nx_set_packet_in_format), 0 },
-
- { OFPUTIL_NXT_PACKET_IN, OFP10_VERSION,
- NXT_PACKET_IN, "NXT_PACKET_IN",
- sizeof(struct nx_packet_in), 1 },
-
- { OFPUTIL_NXT_FLOW_MOD, OFP10_VERSION,
- NXT_FLOW_MOD, "NXT_FLOW_MOD",
- sizeof(struct nx_flow_mod), 8 },
-
- { OFPUTIL_NXT_FLOW_REMOVED, OFP10_VERSION,
- NXT_FLOW_REMOVED, "NXT_FLOW_REMOVED",
- sizeof(struct nx_flow_removed), 8 },
-
- { OFPUTIL_NXT_FLOW_MOD_TABLE_ID, OFP10_VERSION,
- NXT_FLOW_MOD_TABLE_ID, "NXT_FLOW_MOD_TABLE_ID",
- sizeof(struct nx_flow_mod_table_id), 0 },
-
- { OFPUTIL_NXT_FLOW_AGE, OFP10_VERSION,
- NXT_FLOW_AGE, "NXT_FLOW_AGE",
- sizeof(struct nicira_header), 0 },
-
- { OFPUTIL_NXT_SET_ASYNC_CONFIG, OFP10_VERSION,
- NXT_SET_ASYNC_CONFIG, "NXT_SET_ASYNC_CONFIG",
- sizeof(struct nx_async_config), 0 },
-
- { OFPUTIL_NXT_SET_CONTROLLER_ID, OFP10_VERSION,
- NXT_SET_CONTROLLER_ID, "NXT_SET_CONTROLLER_ID",
- sizeof(struct nx_controller_id), 0 },
- };
-
- static const struct ofputil_msg_category nxt_category = {
- "Nicira extension message",
- nxt_messages, ARRAY_SIZE(nxt_messages),
- OFPERR_OFPBRC_BAD_SUBTYPE
- };
-
- const struct ofp_vendor_header *ovh;
- const struct nicira_header *nh;
-
- if (length < sizeof(struct ofp_vendor_header)) {
- if (length == ntohs(oh->length)) {
- VLOG_WARN_RL(&bad_ofmsg_rl, "truncated vendor message");
- }
- return OFPERR_OFPBRC_BAD_LEN;
- }
-
- ovh = (const struct ofp_vendor_header *) oh;
- if (ovh->vendor != htonl(NX_VENDOR_ID)) {
- VLOG_WARN_RL(&bad_ofmsg_rl, "received vendor message for unknown "
- "vendor %"PRIx32, ntohl(ovh->vendor));
- return OFPERR_OFPBRC_BAD_VENDOR;
- }
-
- if (length < sizeof(struct nicira_header)) {
- if (length == ntohs(oh->length)) {
- VLOG_WARN_RL(&bad_ofmsg_rl, "received Nicira vendor message of "
- "length %u (expected at least %zu)",
- ntohs(ovh->header.length),
- sizeof(struct nicira_header));
- }
- return OFPERR_OFPBRC_BAD_LEN;
- }
-
- nh = (const struct nicira_header *) oh;
- return ofputil_lookup_openflow_message(&nxt_category, oh->version,
- ntohl(nh->subtype), typep);
-}
-
-static enum ofperr
-check_nxstats_msg(const struct ofp_header *oh, size_t length)
-{
- const struct ofp_stats_msg *osm = (const struct ofp_stats_msg *) oh;
- ovs_be32 vendor;
-
- if (length < sizeof(struct ofp_vendor_stats_msg)) {
- if (length == ntohs(oh->length)) {
- VLOG_WARN_RL(&bad_ofmsg_rl, "truncated vendor stats message");
- }
- return OFPERR_OFPBRC_BAD_LEN;
- }
-
- memcpy(&vendor, osm + 1, sizeof vendor);
- if (vendor != htonl(NX_VENDOR_ID)) {
- VLOG_WARN_RL(&bad_ofmsg_rl, "received vendor stats message for "
- "unknown vendor %"PRIx32, ntohl(vendor));
- return OFPERR_OFPBRC_BAD_VENDOR;
- }
-
- if (length < sizeof(struct nicira_stats_msg)) {
- if (length == ntohs(osm->header.length)) {
- VLOG_WARN_RL(&bad_ofmsg_rl, "truncated Nicira stats message");
- }
- return OFPERR_OFPBRC_BAD_LEN;
- }
-
- return 0;
-}
-
-static enum ofperr
-ofputil_decode_nxst_request(const struct ofp_header *oh, size_t length,
- const struct ofputil_msg_type **typep)
-{
- static const struct ofputil_msg_type nxst_requests[] = {
- { OFPUTIL_NXST_FLOW_REQUEST, OFP10_VERSION,
- NXST_FLOW, "NXST_FLOW request",
- sizeof(struct nx_flow_stats_request), 8 },
-
- { OFPUTIL_NXST_AGGREGATE_REQUEST, OFP10_VERSION,
- NXST_AGGREGATE, "NXST_AGGREGATE request",
- sizeof(struct nx_aggregate_stats_request), 8 },
- };
-
- static const struct ofputil_msg_category nxst_request_category = {
- "Nicira extension statistics request",
- nxst_requests, ARRAY_SIZE(nxst_requests),
- OFPERR_OFPBRC_BAD_SUBTYPE
- };
-
- const struct nicira_stats_msg *nsm;
- enum ofperr error;
-
- error = check_nxstats_msg(oh, length);
- if (error) {
- return error;
- }
-
- nsm = (struct nicira_stats_msg *) oh;
- return ofputil_lookup_openflow_message(&nxst_request_category, oh->version,
- ntohl(nsm->subtype), typep);
-}
-
-static enum ofperr
-ofputil_decode_nxst_reply(const struct ofp_header *oh, size_t length,
- const struct ofputil_msg_type **typep)
-{
- static const struct ofputil_msg_type nxst_replies[] = {
- { OFPUTIL_NXST_FLOW_REPLY, OFP10_VERSION,
- NXST_FLOW, "NXST_FLOW reply",
- sizeof(struct nicira_stats_msg), 8 },
-
- { OFPUTIL_NXST_AGGREGATE_REPLY, OFP10_VERSION,
- NXST_AGGREGATE, "NXST_AGGREGATE reply",
- sizeof(struct nx_aggregate_stats_reply), 0 },
- };
-
- static const struct ofputil_msg_category nxst_reply_category = {
- "Nicira extension statistics reply",
- nxst_replies, ARRAY_SIZE(nxst_replies),
- OFPERR_OFPBRC_BAD_SUBTYPE
- };
-
- const struct nicira_stats_msg *nsm;
- enum ofperr error;
-
- error = check_nxstats_msg(oh, length);
- if (error) {
- return error;
- }
-
- nsm = (struct nicira_stats_msg *) oh;
- return ofputil_lookup_openflow_message(&nxst_reply_category, oh->version,
- ntohl(nsm->subtype), typep);
-}
-
-static enum ofperr
-check_stats_msg(const struct ofp_header *oh, size_t length)
-{
- if (length < sizeof(struct ofp_stats_msg)) {
- if (length == ntohs(oh->length)) {
- VLOG_WARN_RL(&bad_ofmsg_rl, "truncated stats message");
- }
- return OFPERR_OFPBRC_BAD_LEN;
- }
-
- return 0;
-}
-
-static enum ofperr
-ofputil_decode_ofpst_request(const struct ofp_header *oh, size_t length,
- const struct ofputil_msg_type **typep)
-{
- static const struct ofputil_msg_type ofpst_requests[] = {
- { OFPUTIL_OFPST_DESC_REQUEST, OFP10_VERSION,
- OFPST_DESC, "OFPST_DESC request",
- sizeof(struct ofp_stats_msg), 0 },
-
- { OFPUTIL_OFPST_FLOW_REQUEST, OFP10_VERSION,
- OFPST_FLOW, "OFPST_FLOW request",
- sizeof(struct ofp_flow_stats_request), 0 },
-
- { OFPUTIL_OFPST_AGGREGATE_REQUEST, OFP10_VERSION,
- OFPST_AGGREGATE, "OFPST_AGGREGATE request",
- sizeof(struct ofp_flow_stats_request), 0 },
-
- { OFPUTIL_OFPST_TABLE_REQUEST, OFP10_VERSION,
- OFPST_TABLE, "OFPST_TABLE request",
- sizeof(struct ofp_stats_msg), 0 },
-
- { OFPUTIL_OFPST_PORT_REQUEST, OFP10_VERSION,
- OFPST_PORT, "OFPST_PORT request",
- sizeof(struct ofp_port_stats_request), 0 },
-
- { OFPUTIL_OFPST_QUEUE_REQUEST, OFP10_VERSION,
- OFPST_QUEUE, "OFPST_QUEUE request",
- sizeof(struct ofp_queue_stats_request), 0 },
-
- { OFPUTIL_OFPST_PORT_DESC_REQUEST, OFP10_VERSION,
- OFPST_PORT_DESC, "OFPST_PORT_DESC request",
- sizeof(struct ofp_stats_msg), 0 },
-
- { 0, 0,
- OFPST_VENDOR, "OFPST_VENDOR request",
- sizeof(struct ofp_vendor_stats_msg), 1 },
- };
-
- static const struct ofputil_msg_category ofpst_request_category = {
- "OpenFlow statistics",
- ofpst_requests, ARRAY_SIZE(ofpst_requests),
- OFPERR_OFPBRC_BAD_STAT
- };
-
- const struct ofp_stats_msg *request = (const struct ofp_stats_msg *) oh;
- enum ofperr error;
-
- error = check_stats_msg(oh, length);
- if (error) {
- return error;
- }
-
- error = ofputil_lookup_openflow_message(&ofpst_request_category,
- oh->version, ntohs(request->type),
- typep);
- if (!error && request->type == htons(OFPST_VENDOR)) {
- error = ofputil_decode_nxst_request(oh, length, typep);
- }
- return error;
-}
-
-static enum ofperr
-ofputil_decode_ofpst_reply(const struct ofp_header *oh, size_t length,
- const struct ofputil_msg_type **typep)
-{
- static const struct ofputil_msg_type ofpst_replies[] = {
- { OFPUTIL_OFPST_DESC_REPLY, OFP10_VERSION,
- OFPST_DESC, "OFPST_DESC reply",
- sizeof(struct ofp_desc_stats), 0 },
-
- { OFPUTIL_OFPST_FLOW_REPLY, OFP10_VERSION,
- OFPST_FLOW, "OFPST_FLOW reply",
- sizeof(struct ofp_stats_msg), 1 },
-
- { OFPUTIL_OFPST_AGGREGATE_REPLY, OFP10_VERSION,
- OFPST_AGGREGATE, "OFPST_AGGREGATE reply",
- sizeof(struct ofp_aggregate_stats_reply), 0 },
-
- { OFPUTIL_OFPST_TABLE_REPLY, OFP10_VERSION,
- OFPST_TABLE, "OFPST_TABLE reply",
- sizeof(struct ofp_stats_msg), sizeof(struct ofp_table_stats) },
-
- { OFPUTIL_OFPST_PORT_REPLY, OFP10_VERSION,
- OFPST_PORT, "OFPST_PORT reply",
- sizeof(struct ofp_stats_msg), sizeof(struct ofp_port_stats) },
-
- { OFPUTIL_OFPST_QUEUE_REPLY, OFP10_VERSION,
- OFPST_QUEUE, "OFPST_QUEUE reply",
- sizeof(struct ofp_stats_msg), sizeof(struct ofp_queue_stats) },
-
- { OFPUTIL_OFPST_PORT_DESC_REPLY, OFP10_VERSION,
- OFPST_PORT_DESC, "OFPST_PORT_DESC reply",
- sizeof(struct ofp_stats_msg), sizeof(struct ofp10_phy_port) },
-
- { 0, 0,
- OFPST_VENDOR, "OFPST_VENDOR reply",
- sizeof(struct ofp_vendor_stats_msg), 1 },
- };
-
- static const struct ofputil_msg_category ofpst_reply_category = {
- "OpenFlow statistics",
- ofpst_replies, ARRAY_SIZE(ofpst_replies),
- OFPERR_OFPBRC_BAD_STAT
- };
-
- const struct ofp_stats_msg *reply = (const struct ofp_stats_msg *) oh;
- enum ofperr error;
-
- error = check_stats_msg(oh, length);
- if (error) {
- return error;
- }
-
- error = ofputil_lookup_openflow_message(&ofpst_reply_category, oh->version,
- ntohs(reply->type), typep);
- if (!error && reply->type == htons(OFPST_VENDOR)) {
- error = ofputil_decode_nxst_reply(oh, length, typep);
- }
- return error;
-}
-
-static enum ofperr
-ofputil_decode_msg_type__(const struct ofp_header *oh, size_t length,
- const struct ofputil_msg_type **typep)
-{
- static const struct ofputil_msg_type ofpt_messages[] = {
- { OFPUTIL_OFPT_HELLO, OFP10_VERSION,
- OFPT_HELLO, "OFPT_HELLO",
- sizeof(struct ofp_hello), 1 },
-
- { OFPUTIL_OFPT_ERROR, 0,
- OFPT_ERROR, "OFPT_ERROR",
- sizeof(struct ofp_error_msg), 1 },
-
- { OFPUTIL_OFPT_ECHO_REQUEST, OFP10_VERSION,
- OFPT_ECHO_REQUEST, "OFPT_ECHO_REQUEST",
- sizeof(struct ofp_header), 1 },
-
- { OFPUTIL_OFPT_ECHO_REPLY, OFP10_VERSION,
- OFPT_ECHO_REPLY, "OFPT_ECHO_REPLY",
- sizeof(struct ofp_header), 1 },
-
- { OFPUTIL_OFPT_FEATURES_REQUEST, OFP10_VERSION,
- OFPT_FEATURES_REQUEST, "OFPT_FEATURES_REQUEST",
- sizeof(struct ofp_header), 0 },
-
- { OFPUTIL_OFPT_FEATURES_REPLY, OFP10_VERSION,
- OFPT_FEATURES_REPLY, "OFPT_FEATURES_REPLY",
- sizeof(struct ofp_switch_features), sizeof(struct ofp10_phy_port) },
- { OFPUTIL_OFPT_FEATURES_REPLY, OFP11_VERSION,
- OFPT_FEATURES_REPLY, "OFPT_FEATURES_REPLY",
- sizeof(struct ofp_switch_features), sizeof(struct ofp11_port) },
-
- { OFPUTIL_OFPT_GET_CONFIG_REQUEST, OFP10_VERSION,
- OFPT_GET_CONFIG_REQUEST, "OFPT_GET_CONFIG_REQUEST",
- sizeof(struct ofp_header), 0 },
-
- { OFPUTIL_OFPT_GET_CONFIG_REPLY, OFP10_VERSION,
- OFPT_GET_CONFIG_REPLY, "OFPT_GET_CONFIG_REPLY",
- sizeof(struct ofp_switch_config), 0 },
-
- { OFPUTIL_OFPT_SET_CONFIG, OFP10_VERSION,
- OFPT_SET_CONFIG, "OFPT_SET_CONFIG",
- sizeof(struct ofp_switch_config), 0 },
-
- { OFPUTIL_OFPT_PACKET_IN, OFP10_VERSION,
- OFPT_PACKET_IN, "OFPT_PACKET_IN",
- offsetof(struct ofp_packet_in, data), 1 },
-
- { OFPUTIL_OFPT_FLOW_REMOVED, OFP10_VERSION,
- OFPT_FLOW_REMOVED, "OFPT_FLOW_REMOVED",
- sizeof(struct ofp_flow_removed), 0 },
-
- { OFPUTIL_OFPT_PORT_STATUS, OFP10_VERSION,
- OFPT_PORT_STATUS, "OFPT_PORT_STATUS",
- sizeof(struct ofp_port_status) + sizeof(struct ofp10_phy_port), 0 },
- { OFPUTIL_OFPT_PORT_STATUS, OFP11_VERSION,
- OFPT_PORT_STATUS, "OFPT_PORT_STATUS",
- sizeof(struct ofp_port_status) + sizeof(struct ofp11_port), 0 },
-
- { OFPUTIL_OFPT_PACKET_OUT, OFP10_VERSION,
- OFPT_PACKET_OUT, "OFPT_PACKET_OUT",
- sizeof(struct ofp_packet_out), 1 },
-
- { OFPUTIL_OFPT_FLOW_MOD, OFP10_VERSION,
- OFPT_FLOW_MOD, "OFPT_FLOW_MOD",
- sizeof(struct ofp_flow_mod), 1 },
-
- { OFPUTIL_OFPT_PORT_MOD, OFP10_VERSION,
- OFPT10_PORT_MOD, "OFPT_PORT_MOD",
- sizeof(struct ofp10_port_mod), 0 },
- { OFPUTIL_OFPT_PORT_MOD, OFP11_VERSION,
- OFPT11_PORT_MOD, "OFPT_PORT_MOD",
- sizeof(struct ofp11_port_mod), 0 },
-
- { 0, OFP10_VERSION,
- OFPT10_STATS_REQUEST, "OFPT_STATS_REQUEST",
- sizeof(struct ofp_stats_msg), 1 },
-
- { 0, OFP10_VERSION,
- OFPT10_STATS_REPLY, "OFPT_STATS_REPLY",
- sizeof(struct ofp_stats_msg), 1 },
-
- { OFPUTIL_OFPT_BARRIER_REQUEST, OFP10_VERSION,
- OFPT10_BARRIER_REQUEST, "OFPT_BARRIER_REQUEST",
- sizeof(struct ofp_header), 0 },
-
- { OFPUTIL_OFPT_BARRIER_REPLY, OFP10_VERSION,
- OFPT10_BARRIER_REPLY, "OFPT_BARRIER_REPLY",
- sizeof(struct ofp_header), 0 },
-
- { 0, 0,
- OFPT_VENDOR, "OFPT_VENDOR",
- sizeof(struct ofp_vendor_header), 1 },
- };
-
- static const struct ofputil_msg_category ofpt_category = {
- "OpenFlow message",
- ofpt_messages, ARRAY_SIZE(ofpt_messages),
- OFPERR_OFPBRC_BAD_TYPE
- };
-
- enum ofperr error;
-
- error = ofputil_lookup_openflow_message(&ofpt_category, oh->version,
- oh->type, typep);
- if (!error) {
- switch ((oh->version << 8) | oh->type) {
- case (OFP10_VERSION << 8) | OFPT_VENDOR:
- case (OFP11_VERSION << 8) | OFPT_VENDOR:
- error = ofputil_decode_vendor(oh, length, typep);
- break;
-
- case (OFP10_VERSION << 8) | OFPT10_STATS_REQUEST:
- case (OFP11_VERSION << 8) | OFPT11_STATS_REQUEST:
- error = ofputil_decode_ofpst_request(oh, length, typep);
- break;
-
- case (OFP10_VERSION << 8) | OFPT10_STATS_REPLY:
- case (OFP11_VERSION << 8) | OFPT11_STATS_REPLY:
- error = ofputil_decode_ofpst_reply(oh, length, typep);
-
- default:
- break;
- }
- }
- return error;
-}
-
-/* Decodes the message type represented by 'oh'. Returns 0 if successful or an
- * OpenFlow error code on failure. Either way, stores in '*typep' a type
- * structure that can be inspected with the ofputil_msg_type_*() functions.
- *
- * oh->length must indicate the correct length of the message (and must be at
- * least sizeof(struct ofp_header)).
- *
- * Success indicates that 'oh' is at least as long as the minimum-length
- * message of its type. */
-enum ofperr
-ofputil_decode_msg_type(const struct ofp_header *oh,
- const struct ofputil_msg_type **typep)
-{
- size_t length = ntohs(oh->length);
- enum ofperr error;
-
- error = ofputil_decode_msg_type__(oh, length, typep);
- if (!error) {
- error = ofputil_check_length(*typep, length);
- }
- if (error) {
- *typep = &ofputil_invalid_type;
- }
- return error;
-}
-
-/* Decodes the message type represented by 'oh', of which only the first
- * 'length' bytes are available. Returns 0 if successful or an OpenFlow error
- * code on failure. Either way, stores in '*typep' a type structure that can
- * be inspected with the ofputil_msg_type_*() functions. */
-enum ofperr
-ofputil_decode_msg_type_partial(const struct ofp_header *oh, size_t length,
- const struct ofputil_msg_type **typep)
-{
- enum ofperr error;
-
- error = (length >= sizeof *oh
- ? ofputil_decode_msg_type__(oh, length, typep)
- : OFPERR_OFPBRC_BAD_LEN);
- if (error) {
- *typep = &ofputil_invalid_type;
- }
- return error;
-}
-
-/* Returns an OFPUTIL_* message type code for 'type'. */
-enum ofputil_msg_code
-ofputil_msg_type_code(const struct ofputil_msg_type *type)
-{
- return type->code;
-}
\f
/* Protocols. */
* 1.0, 0x02 for OpenFlow 1.1). Returns 0 if 'version' is not supported or
* outside the valid range. */
enum ofputil_protocol
-ofputil_protocol_from_ofp_version(int version)
+ofputil_protocol_from_ofp_version(enum ofp_version version)
{
switch (version) {
- case OFP10_VERSION: return OFPUTIL_P_OF10;
- default: return 0;
+ case OFP10_VERSION:
+ return OFPUTIL_P_OF10;
+ case OFP12_VERSION:
+ return OFPUTIL_P_OF12;
+ case OFP11_VERSION:
+ default:
+ return 0;
}
}
-/* Returns the OpenFlow protocol version number (e.g. OFP10_VERSION or
- * OFP11_VERSION) that corresponds to 'protocol'. */
-uint8_t
+/* Returns the OpenFlow protocol version number (e.g. OFP10_VERSION,
+ * OFP11_VERSION or OFP12_VERSION) that corresponds to 'protocol'. */
+enum ofp_version
ofputil_protocol_to_ofp_version(enum ofputil_protocol protocol)
{
switch (protocol) {
case OFPUTIL_P_NXM:
case OFPUTIL_P_NXM_TID:
return OFP10_VERSION;
+ case OFPUTIL_P_OF12:
+ return OFP12_VERSION;
}
NOT_REACHED();
case OFPUTIL_P_NXM_TID:
return enable ? OFPUTIL_P_NXM_TID : OFPUTIL_P_NXM;
+ case OFPUTIL_P_OF12:
+ return OFPUTIL_P_OF12;
+
default:
NOT_REACHED();
}
case OFPUTIL_P_NXM_TID:
return ofputil_protocol_set_tid(OFPUTIL_P_NXM, tid);
+ case OFPUTIL_P_OF12:
+ return ofputil_protocol_set_tid(OFPUTIL_P_OF12, tid);
+
default:
NOT_REACHED();
}
case OFPUTIL_P_OF10_TID:
return "OpenFlow10+table_id";
+
+ case OFPUTIL_P_OF12:
+ return NULL;
}
/* Check abbreviations. */
{
const struct flow_wildcards *wc = &rule->wc;
- BUILD_ASSERT_DECL(FLOW_WC_SEQ == 12);
+ BUILD_ASSERT_DECL(FLOW_WC_SEQ == 14);
/* NXM and OF1.1+ supports bitwise matching on ethernet addresses. */
if (!eth_mask_is_exact(wc->dl_src_mask)
}
/* Only NXM supports matching ARP hardware addresses. */
- if (!(wc->wildcards & FWW_ARP_SHA) || !(wc->wildcards & FWW_ARP_THA)) {
+ if (!eth_addr_is_zero(wc->arp_sha_mask) ||
+ !eth_addr_is_zero(wc->arp_tha_mask)) {
return OFPUTIL_P_NXM_ANY;
}
}
/* Only NXM supports matching IPv6 flow label. */
- if (!(wc->wildcards & FWW_IPV6_LABEL)) {
+ if (wc->ipv6_label_mask) {
return OFPUTIL_P_NXM_ANY;
}
case OFPUTIL_P_OF10:
return ofputil_encode_nx_set_flow_format(NXFF_OPENFLOW10);
+ case OFPUTIL_P_OF12:
+ return ofputil_encode_nx_set_flow_format(NXFF_OPENFLOW12);
+
case OFPUTIL_P_OF10_TID:
case OFPUTIL_P_NXM_TID:
NOT_REACHED();
assert(ofputil_nx_flow_format_is_valid(nxff));
- sff = make_nxmsg(sizeof *sff, NXT_SET_FLOW_FORMAT, &msg);
+ msg = ofpraw_alloc(OFPRAW_NXT_SET_FLOW_FORMAT, OFP10_VERSION, 0);
+ sff = ofpbuf_put_zeros(msg, sizeof *sff);
sff->format = htonl(nxff);
return msg;
case NXFF_NXM:
return OFPUTIL_P_NXM;
+ case NXFF_OPENFLOW12:
+ return OFPUTIL_P_OF12;
+
default:
return 0;
}
return "openflow10";
case NXFF_NXM:
return "nxm";
+ case NXFF_OPENFLOW12:
+ return "openflow12";
default:
NOT_REACHED();
}
struct nx_set_packet_in_format *spif;
struct ofpbuf *msg;
- spif = make_nxmsg(sizeof *spif, NXT_SET_PACKET_IN_FORMAT, &msg);
+ msg = ofpraw_alloc(OFPRAW_NXT_SET_PACKET_IN_FORMAT, OFP10_VERSION, 0);
+ spif = ofpbuf_put_zeros(msg, sizeof *spif);
spif->format = htonl(packet_in_format);
return msg;
struct nx_flow_mod_table_id *nfmti;
struct ofpbuf *msg;
- nfmti = make_nxmsg(sizeof *nfmti, NXT_FLOW_MOD_TABLE_ID, &msg);
+ msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MOD_TABLE_ID, OFP10_VERSION, 0);
+ nfmti = ofpbuf_put_zeros(msg, sizeof *nfmti);
nfmti->set = flow_mod_table_id;
return msg;
}
enum ofputil_protocol protocol,
struct ofpbuf *ofpacts)
{
- const struct ofputil_msg_type *type;
uint16_t command;
struct ofpbuf b;
+ enum ofpraw raw;
ofpbuf_use_const(&b, oh, ntohs(oh->length));
-
- ofputil_decode_msg_type(oh, &type);
- if (ofputil_msg_type_code(type) == OFPUTIL_OFPT_FLOW_MOD) {
- /* Standard OpenFlow flow_mod. */
- const struct ofp_flow_mod *ofm;
- uint16_t priority;
+ raw = ofpraw_pull_assert(&b);
+ if (raw == OFPRAW_OFPT11_FLOW_MOD) {
+ /* Standard OpenFlow 1.1 flow_mod. */
+ const struct ofp11_flow_mod *ofm;
enum ofperr error;
- /* Get the ofp_flow_mod. */
ofm = ofpbuf_pull(&b, sizeof *ofm);
- /* Set priority based on original wildcards. Normally we'd allow
- * ofputil_cls_rule_from_match() to do this for us, but
- * ofputil_normalize_rule() can put wildcards where the original flow
- * didn't have them. */
- priority = ntohs(ofm->priority);
- if (!(ofm->match.wildcards & htonl(OFPFW10_ALL))) {
- priority = UINT16_MAX;
+ error = ofputil_pull_ofp11_match(&b, ntohs(ofm->priority), &fm->cr);
+ if (error) {
+ return error;
}
- /* Translate the rule. */
- ofputil_cls_rule_from_ofp10_match(&ofm->match, priority, &fm->cr);
- ofputil_normalize_rule(&fm->cr);
-
- /* Now get the actions. */
- error = ofpacts_pull_openflow10(&b, b.size, ofpacts);
+ error = ofpacts_pull_openflow11_instructions(&b, b.size, ofpacts);
if (error) {
return error;
}
/* Translate the message. */
- command = ntohs(ofm->command);
- fm->cookie = htonll(0);
- fm->cookie_mask = htonll(0);
- fm->new_cookie = ofm->cookie;
+ if (ofm->command == OFPFC_ADD) {
+ fm->cookie = htonll(0);
+ fm->cookie_mask = htonll(0);
+ fm->new_cookie = ofm->cookie;
+ } else {
+ /* XXX */
+ fm->cookie = ofm->cookie;
+ fm->cookie_mask = ofm->cookie_mask;
+ fm->new_cookie = htonll(UINT64_MAX);
+ }
+ fm->command = ofm->command;
+ fm->table_id = ofm->table_id;
fm->idle_timeout = ntohs(ofm->idle_timeout);
fm->hard_timeout = ntohs(ofm->hard_timeout);
fm->buffer_id = ntohl(ofm->buffer_id);
- fm->out_port = ntohs(ofm->out_port);
- fm->flags = ntohs(ofm->flags);
- } else if (ofputil_msg_type_code(type) == OFPUTIL_NXT_FLOW_MOD) {
- /* Nicira extended flow_mod. */
- const struct nx_flow_mod *nfm;
- enum ofperr error;
-
- /* Dissect the message. */
- nfm = ofpbuf_pull(&b, sizeof *nfm);
- error = nx_pull_match(&b, ntohs(nfm->match_len), ntohs(nfm->priority),
- &fm->cr, &fm->cookie, &fm->cookie_mask);
+ error = ofputil_port_from_ofp11(ofm->out_port, &fm->out_port);
if (error) {
return error;
}
- error = ofpacts_pull_openflow10(&b, b.size, ofpacts);
- if (error) {
- return error;
+ if (ofm->out_group != htonl(OFPG_ANY)) {
+ return OFPERR_NXFMFC_GROUPS_NOT_SUPPORTED;
}
-
- /* Translate the message. */
- command = ntohs(nfm->command);
- if ((command & 0xff) == OFPFC_ADD && fm->cookie_mask) {
- /* Flow additions may only set a new cookie, not match an
- * existing cookie. */
- return OFPERR_NXBRC_NXM_INVALID;
- }
- fm->new_cookie = nfm->cookie;
- fm->idle_timeout = ntohs(nfm->idle_timeout);
- fm->hard_timeout = ntohs(nfm->hard_timeout);
- fm->buffer_id = ntohl(nfm->buffer_id);
- fm->out_port = ntohs(nfm->out_port);
- fm->flags = ntohs(nfm->flags);
+ fm->flags = ntohs(ofm->flags);
} else {
- NOT_REACHED();
+ if (raw == OFPRAW_OFPT10_FLOW_MOD) {
+ /* Standard OpenFlow 1.0 flow_mod. */
+ const struct ofp10_flow_mod *ofm;
+ uint16_t priority;
+ enum ofperr error;
+
+ /* Get the ofp10_flow_mod. */
+ ofm = ofpbuf_pull(&b, sizeof *ofm);
+
+ /* Set priority based on original wildcards. Normally we'd allow
+ * ofputil_cls_rule_from_match() to do this for us, but
+ * ofputil_normalize_rule() can put wildcards where the original
+ * flow didn't have them. */
+ priority = ntohs(ofm->priority);
+ if (!(ofm->match.wildcards & htonl(OFPFW10_ALL))) {
+ priority = UINT16_MAX;
+ }
+
+ /* Translate the rule. */
+ ofputil_cls_rule_from_ofp10_match(&ofm->match, priority, &fm->cr);
+ ofputil_normalize_rule(&fm->cr);
+
+ /* Now get the actions. */
+ error = ofpacts_pull_openflow10(&b, b.size, ofpacts);
+ if (error) {
+ return error;
+ }
+
+ /* Translate the message. */
+ command = ntohs(ofm->command);
+ fm->cookie = htonll(0);
+ fm->cookie_mask = htonll(0);
+ fm->new_cookie = ofm->cookie;
+ fm->idle_timeout = ntohs(ofm->idle_timeout);
+ fm->hard_timeout = ntohs(ofm->hard_timeout);
+ fm->buffer_id = ntohl(ofm->buffer_id);
+ fm->out_port = ntohs(ofm->out_port);
+ fm->flags = ntohs(ofm->flags);
+ } else if (raw == OFPRAW_NXT_FLOW_MOD) {
+ /* Nicira extended flow_mod. */
+ const struct nx_flow_mod *nfm;
+ enum ofperr error;
+
+ /* Dissect the message. */
+ nfm = ofpbuf_pull(&b, sizeof *nfm);
+ error = nx_pull_match(&b, ntohs(nfm->match_len), ntohs(nfm->priority),
+ &fm->cr, &fm->cookie, &fm->cookie_mask);
+ if (error) {
+ return error;
+ }
+ error = ofpacts_pull_openflow10(&b, b.size, ofpacts);
+ if (error) {
+ return error;
+ }
+
+ /* Translate the message. */
+ command = ntohs(nfm->command);
+ if ((command & 0xff) == OFPFC_ADD && fm->cookie_mask) {
+ /* Flow additions may only set a new cookie, not match an
+ * existing cookie. */
+ return OFPERR_NXBRC_NXM_INVALID;
+ }
+ fm->new_cookie = nfm->cookie;
+ fm->idle_timeout = ntohs(nfm->idle_timeout);
+ fm->hard_timeout = ntohs(nfm->hard_timeout);
+ fm->buffer_id = ntohl(nfm->buffer_id);
+ fm->out_port = ntohs(nfm->out_port);
+ fm->flags = ntohs(nfm->flags);
+ } else {
+ NOT_REACHED();
+ }
+
+ if (protocol & OFPUTIL_P_TID) {
+ fm->command = command & 0xff;
+ fm->table_id = command >> 8;
+ } else {
+ fm->command = command;
+ fm->table_id = 0xff;
+ }
}
fm->ofpacts = ofpacts->data;
fm->ofpacts_len = ofpacts->size;
- if (protocol & OFPUTIL_P_TID) {
- fm->command = command & 0xff;
- fm->table_id = command >> 8;
- } else {
- fm->command = command;
- fm->table_id = 0xff;
- }
return 0;
}
-/* Converts 'fm' into an OFPT_FLOW_MOD or NXT_FLOW_MOD message according to
+static ovs_be16
+ofputil_tid_command(const struct ofputil_flow_mod *fm,
+ enum ofputil_protocol protocol)
+{
+ return htons(protocol & OFPUTIL_P_TID
+ ? (fm->command & 0xff) | (fm->table_id << 8)
+ : fm->command);
+}
+
+/* Converts 'fm' into an OFPT_FLOW_MOD or NXT_FLOW_MOD message according to
* 'protocol' and returns the message. */
struct ofpbuf *
ofputil_encode_flow_mod(const struct ofputil_flow_mod *fm,
enum ofputil_protocol protocol)
{
- struct ofp_flow_mod *ofm;
- struct nx_flow_mod *nfm;
struct ofpbuf *msg;
- uint16_t command;
- int match_len;
-
- command = (protocol & OFPUTIL_P_TID
- ? (fm->command & 0xff) | (fm->table_id << 8)
- : fm->command);
switch (protocol) {
+ case OFPUTIL_P_OF12: {
+ struct ofp11_flow_mod *ofm;
+
+ msg = ofpraw_alloc(OFPRAW_OFPT11_FLOW_MOD, OFP12_VERSION,
+ NXM_TYPICAL_LEN + fm->ofpacts_len);
+ ofm = ofpbuf_put_zeros(msg, sizeof *ofm);
+ ofm->cookie = fm->new_cookie;
+ ofm->cookie_mask = fm->cookie_mask;
+ ofm->table_id = fm->table_id;
+ ofm->command = fm->command;
+ ofm->idle_timeout = htons(fm->idle_timeout);
+ ofm->hard_timeout = htons(fm->hard_timeout);
+ ofm->priority = htons(fm->cr.priority);
+ ofm->buffer_id = htonl(fm->buffer_id);
+ ofm->out_port = ofputil_port_to_ofp11(fm->out_port);
+ ofm->out_group = htonl(OFPG11_ANY);
+ ofm->flags = htons(fm->flags);
+ oxm_put_match(msg, &fm->cr);
+ if (fm->ofpacts) {
+ ofpacts_put_openflow11_instructions(fm->ofpacts, fm->ofpacts_len,
+ msg);
+ }
+ break;
+ }
+
case OFPUTIL_P_OF10:
- case OFPUTIL_P_OF10_TID:
- msg = ofpbuf_new(sizeof *ofm + fm->ofpacts_len);
- ofm = put_openflow(sizeof *ofm, OFPT_FLOW_MOD, msg);
+ case OFPUTIL_P_OF10_TID: {
+ struct ofp10_flow_mod *ofm;
+
+ msg = ofpraw_alloc(OFPRAW_OFPT10_FLOW_MOD, OFP10_VERSION,
+ fm->ofpacts_len);
+ ofm = ofpbuf_put_zeros(msg, sizeof *ofm);
ofputil_cls_rule_to_ofp10_match(&fm->cr, &ofm->match);
ofm->cookie = fm->new_cookie;
- ofm->command = htons(command);
+ ofm->command = ofputil_tid_command(fm, protocol);
ofm->idle_timeout = htons(fm->idle_timeout);
ofm->hard_timeout = htons(fm->hard_timeout);
ofm->priority = htons(fm->cr.priority);
ofm->buffer_id = htonl(fm->buffer_id);
ofm->out_port = htons(fm->out_port);
ofm->flags = htons(fm->flags);
+ if (fm->ofpacts) {
+ ofpacts_put_openflow10(fm->ofpacts, fm->ofpacts_len, msg);
+ }
break;
+ }
case OFPUTIL_P_NXM:
- case OFPUTIL_P_NXM_TID:
- msg = ofpbuf_new(sizeof *nfm + NXM_TYPICAL_LEN + fm->ofpacts_len);
- put_nxmsg(sizeof *nfm, NXT_FLOW_MOD, msg);
- nfm = msg->data;
- nfm->command = htons(command);
+ case OFPUTIL_P_NXM_TID: {
+ struct nx_flow_mod *nfm;
+ int match_len;
+
+ msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MOD, OFP10_VERSION,
+ NXM_TYPICAL_LEN + fm->ofpacts_len);
+ nfm = ofpbuf_put_zeros(msg, sizeof *nfm);
+ nfm->command = ofputil_tid_command(fm, protocol);
nfm->cookie = fm->new_cookie;
- match_len = nx_put_match(msg, false, &fm->cr,
- fm->cookie, fm->cookie_mask);
- nfm = msg->data;
+ match_len = nx_put_match(msg, &fm->cr, fm->cookie, fm->cookie_mask);
+ nfm = msg->l3;
nfm->idle_timeout = htons(fm->idle_timeout);
nfm->hard_timeout = htons(fm->hard_timeout);
nfm->priority = htons(fm->cr.priority);
nfm->out_port = htons(fm->out_port);
nfm->flags = htons(fm->flags);
nfm->match_len = htons(match_len);
+ if (fm->ofpacts) {
+ ofpacts_put_openflow10(fm->ofpacts, fm->ofpacts_len, msg);
+ }
break;
+ }
default:
NOT_REACHED();
}
- if (fm->ofpacts) {
- ofpacts_put_openflow10(fm->ofpacts, fm->ofpacts_len, msg);
- }
- update_openflow_length(msg);
+ ofpmsg_update_length(msg);
return msg;
}
static enum ofperr
ofputil_decode_ofpst_flow_request(struct ofputil_flow_stats_request *fsr,
- const struct ofp_header *oh,
+ const struct ofp10_flow_stats_request *ofsr,
bool aggregate)
{
- const struct ofp_flow_stats_request *ofsr =
- (const struct ofp_flow_stats_request *) oh;
-
fsr->aggregate = aggregate;
ofputil_cls_rule_from_ofp10_match(&ofsr->match, 0, &fsr->match);
fsr->out_port = ntohs(ofsr->out_port);
static enum ofperr
ofputil_decode_nxst_flow_request(struct ofputil_flow_stats_request *fsr,
- const struct ofp_header *oh,
- bool aggregate)
+ struct ofpbuf *b, bool aggregate)
{
const struct nx_flow_stats_request *nfsr;
- struct ofpbuf b;
enum ofperr error;
- ofpbuf_use_const(&b, oh, ntohs(oh->length));
-
- nfsr = ofpbuf_pull(&b, sizeof *nfsr);
- error = nx_pull_match(&b, ntohs(nfsr->match_len), 0, &fsr->match,
+ nfsr = ofpbuf_pull(b, sizeof *nfsr);
+ error = nx_pull_match(b, ntohs(nfsr->match_len), 0, &fsr->match,
&fsr->cookie, &fsr->cookie_mask);
if (error) {
return error;
}
- if (b.size) {
+ if (b->size) {
return OFPERR_OFPBRC_BAD_LEN;
}
ofputil_decode_flow_stats_request(struct ofputil_flow_stats_request *fsr,
const struct ofp_header *oh)
{
- const struct ofputil_msg_type *type;
+ enum ofpraw raw;
struct ofpbuf b;
- int code;
ofpbuf_use_const(&b, oh, ntohs(oh->length));
+ raw = ofpraw_pull_assert(&b);
+ switch ((int) raw) {
+ case OFPRAW_OFPST_FLOW_REQUEST:
+ return ofputil_decode_ofpst_flow_request(fsr, b.data, false);
- ofputil_decode_msg_type(oh, &type);
- code = ofputil_msg_type_code(type);
- switch (code) {
- case OFPUTIL_OFPST_FLOW_REQUEST:
- return ofputil_decode_ofpst_flow_request(fsr, oh, false);
+ case OFPRAW_OFPST_AGGREGATE_REQUEST:
+ return ofputil_decode_ofpst_flow_request(fsr, b.data, true);
- case OFPUTIL_OFPST_AGGREGATE_REQUEST:
- return ofputil_decode_ofpst_flow_request(fsr, oh, true);
+ case OFPRAW_NXST_FLOW_REQUEST:
+ return ofputil_decode_nxst_flow_request(fsr, &b, false);
- case OFPUTIL_NXST_FLOW_REQUEST:
- return ofputil_decode_nxst_flow_request(fsr, oh, false);
-
- case OFPUTIL_NXST_AGGREGATE_REQUEST:
- return ofputil_decode_nxst_flow_request(fsr, oh, true);
+ case OFPRAW_NXST_AGGREGATE_REQUEST:
+ return ofputil_decode_nxst_flow_request(fsr, &b, true);
default:
/* Hey, the caller lied. */
enum ofputil_protocol protocol)
{
struct ofpbuf *msg;
+ enum ofpraw raw;
switch (protocol) {
case OFPUTIL_P_OF10:
case OFPUTIL_P_OF10_TID: {
- struct ofp_flow_stats_request *ofsr;
- int type;
+ struct ofp10_flow_stats_request *ofsr;
- type = fsr->aggregate ? OFPST_AGGREGATE : OFPST_FLOW;
- ofsr = ofputil_make_stats_request(sizeof *ofsr, type, 0, &msg);
+ raw = (fsr->aggregate
+ ? OFPRAW_OFPST_AGGREGATE_REQUEST
+ : OFPRAW_OFPST_FLOW_REQUEST);
+ msg = ofpraw_alloc(raw, OFP10_VERSION, 0);
+ ofsr = ofpbuf_put_zeros(msg, sizeof *ofsr);
ofputil_cls_rule_to_ofp10_match(&fsr->match, &ofsr->match);
ofsr->table_id = fsr->table_id;
ofsr->out_port = htons(fsr->out_port);
case OFPUTIL_P_NXM_TID: {
struct nx_flow_stats_request *nfsr;
int match_len;
- int subtype;
- subtype = fsr->aggregate ? NXST_AGGREGATE : NXST_FLOW;
- ofputil_make_stats_request(sizeof *nfsr, OFPST_VENDOR, subtype, &msg);
- match_len = nx_put_match(msg, false, &fsr->match,
+ raw = (fsr->aggregate
+ ? OFPRAW_NXST_AGGREGATE_REQUEST
+ : OFPRAW_NXST_FLOW_REQUEST);
+ msg = ofpraw_alloc(raw, OFP10_VERSION, 0);
+ ofpbuf_put_zeros(msg, sizeof *nfsr);
+ match_len = nx_put_match(msg, &fsr->match,
fsr->cookie, fsr->cookie_mask);
- nfsr = msg->data;
+ nfsr = msg->l3;
nfsr->out_port = htons(fsr->out_port);
nfsr->match_len = htons(match_len);
nfsr->table_id = fsr->table_id;
break;
}
+ case OFPUTIL_P_OF12:
default:
NOT_REACHED();
}
bool flow_age_extension,
struct ofpbuf *ofpacts)
{
- const struct ofputil_msg_type *type;
- int code;
+ enum ofperr error;
+ enum ofpraw raw;
- ofputil_decode_msg_type(msg->l2 ? msg->l2 : msg->data, &type);
- code = ofputil_msg_type_code(type);
- if (!msg->l2) {
- msg->l2 = msg->data;
- if (code == OFPUTIL_OFPST_FLOW_REPLY) {
- ofpbuf_pull(msg, sizeof(struct ofp_stats_msg));
- } else if (code == OFPUTIL_NXST_FLOW_REPLY) {
- ofpbuf_pull(msg, sizeof(struct nicira_stats_msg));
- } else {
- NOT_REACHED();
- }
+ error = (msg->l2
+ ? ofpraw_decode(&raw, msg->l2)
+ : ofpraw_pull(&raw, msg));
+ if (error) {
+ return error;
}
if (!msg->size) {
return EOF;
- } else if (code == OFPUTIL_OFPST_FLOW_REPLY) {
- const struct ofp_flow_stats *ofs;
+ } else if (raw == OFPRAW_OFPST_FLOW_REPLY) {
+ const struct ofp10_flow_stats *ofs;
size_t length;
ofs = ofpbuf_try_pull(msg, sizeof *ofs);
fs->hard_age = -1;
fs->packet_count = ntohll(get_32aligned_be64(&ofs->packet_count));
fs->byte_count = ntohll(get_32aligned_be64(&ofs->byte_count));
- } else if (code == OFPUTIL_NXST_FLOW_REPLY) {
+ } else if (raw == OFPRAW_NXST_FLOW_REPLY) {
const struct nx_flow_stats *nfs;
size_t match_len, actions_len, length;
struct list *replies)
{
struct ofpbuf *reply = ofpbuf_from_list(list_back(replies));
- const struct ofp_stats_msg *osm = reply->data;
size_t start_ofs = reply->size;
+ enum ofpraw raw;
- if (osm->type == htons(OFPST_FLOW)) {
- struct ofp_flow_stats *ofs;
+ ofpraw_decode_partial(&raw, reply->data, reply->size);
+ if (raw == OFPRAW_OFPST_FLOW_REPLY) {
+ struct ofp10_flow_stats *ofs;
+
+ ofpbuf_put_uninit(reply, sizeof *ofs);
+ ofpacts_put_openflow10(fs->ofpacts, fs->ofpacts_len, reply);
- ofs = ofpbuf_put_uninit(reply, sizeof *ofs);
+ ofs = ofpbuf_at_assert(reply, start_ofs, sizeof *ofs);
+ ofs->length = htons(reply->size - start_ofs);
ofs->table_id = fs->table_id;
ofs->pad = 0;
ofputil_cls_rule_to_ofp10_match(&fs->rule, &ofs->match);
htonll(unknown_to_zero(fs->packet_count)));
put_32aligned_be64(&ofs->byte_count,
htonll(unknown_to_zero(fs->byte_count)));
- ofpacts_put_openflow10(fs->ofpacts, fs->ofpacts_len, reply);
-
- ofs = ofpbuf_at_assert(reply, start_ofs, sizeof *ofs);
- ofs->length = htons(reply->size - start_ofs);
- } else if (osm->type == htons(OFPST_VENDOR)) {
+ } else if (raw == OFPRAW_NXST_FLOW_REPLY) {
struct nx_flow_stats *nfs;
+ int match_len;
+
+ ofpbuf_put_uninit(reply, sizeof *nfs);
+ match_len = nx_put_match(reply, &fs->rule, 0, 0);
+ ofpacts_put_openflow10(fs->ofpacts, fs->ofpacts_len, reply);
- nfs = ofpbuf_put_uninit(reply, sizeof *nfs);
+ nfs = ofpbuf_at_assert(reply, start_ofs, sizeof *nfs);
+ nfs->length = htons(reply->size - start_ofs);
nfs->table_id = fs->table_id;
nfs->pad = 0;
nfs->duration_sec = htonl(fs->duration_sec);
nfs->hard_age = htons(fs->hard_age < 0 ? 0
: fs->hard_age < UINT16_MAX ? fs->hard_age + 1
: UINT16_MAX);
- nfs->match_len = htons(nx_put_match(reply, false, &fs->rule, 0, 0));
+ nfs->match_len = htons(match_len);
nfs->cookie = fs->cookie;
nfs->packet_count = htonll(fs->packet_count);
nfs->byte_count = htonll(fs->byte_count);
- ofpacts_put_openflow10(fs->ofpacts, fs->ofpacts_len, reply);
-
- nfs = ofpbuf_at_assert(reply, start_ofs, sizeof *nfs);
- nfs->length = htons(reply->size - start_ofs);
} else {
NOT_REACHED();
}
- ofputil_postappend_stats_reply(start_ofs, replies);
+ ofpmp_postappend(replies, start_ofs);
}
/* Converts abstract ofputil_aggregate_stats 'stats' into an OFPST_AGGREGATE or
- * NXST_AGGREGATE reply according to 'protocol', and returns the message. */
+ * NXST_AGGREGATE reply matching 'request', and returns the message. */
struct ofpbuf *
ofputil_encode_aggregate_stats_reply(
const struct ofputil_aggregate_stats *stats,
- const struct ofp_stats_msg *request)
+ const struct ofp_header *request)
{
+ struct ofp_aggregate_stats_reply *asr;
+ uint64_t packet_count;
+ uint64_t byte_count;
struct ofpbuf *msg;
+ enum ofpraw raw;
- if (request->type == htons(OFPST_AGGREGATE)) {
- struct ofp_aggregate_stats_reply *asr;
-
- asr = ofputil_make_stats_reply(sizeof *asr, request, &msg);
- put_32aligned_be64(&asr->packet_count,
- htonll(unknown_to_zero(stats->packet_count)));
- put_32aligned_be64(&asr->byte_count,
- htonll(unknown_to_zero(stats->byte_count)));
- asr->flow_count = htonl(stats->flow_count);
- } else if (request->type == htons(OFPST_VENDOR)) {
- struct nx_aggregate_stats_reply *nasr;
-
- nasr = ofputil_make_stats_reply(sizeof *nasr, request, &msg);
- assert(nasr->nsm.subtype == htonl(NXST_AGGREGATE));
- nasr->packet_count = htonll(stats->packet_count);
- nasr->byte_count = htonll(stats->byte_count);
- nasr->flow_count = htonl(stats->flow_count);
+ ofpraw_decode(&raw, request);
+ if (raw == OFPRAW_OFPST_AGGREGATE_REQUEST) {
+ packet_count = unknown_to_zero(stats->packet_count);
+ byte_count = unknown_to_zero(stats->byte_count);
} else {
- NOT_REACHED();
+ packet_count = stats->packet_count;
+ byte_count = stats->byte_count;
}
+ msg = ofpraw_alloc_stats_reply(request, 0);
+ asr = ofpbuf_put_zeros(msg, sizeof *asr);
+ put_32aligned_be64(&asr->packet_count, htonll(packet_count));
+ put_32aligned_be64(&asr->byte_count, htonll(byte_count));
+ asr->flow_count = htonl(stats->flow_count);
+
return msg;
}
+enum ofperr
+ofputil_decode_aggregate_stats_reply(struct ofputil_aggregate_stats *stats,
+ const struct ofp_header *reply)
+{
+ struct ofp_aggregate_stats_reply *asr;
+ struct ofpbuf msg;
+
+ ofpbuf_use_const(&msg, reply, ntohs(reply->length));
+ ofpraw_pull_assert(&msg);
+
+ asr = msg.l3;
+ stats->packet_count = ntohll(get_32aligned_be64(&asr->packet_count));
+ stats->byte_count = ntohll(get_32aligned_be64(&asr->byte_count));
+ stats->flow_count = ntohl(asr->flow_count);
+
+ return 0;
+}
+
/* Converts an OFPT_FLOW_REMOVED or NXT_FLOW_REMOVED message 'oh' into an
* abstract ofputil_flow_removed in 'fr'. Returns 0 if successful, otherwise
* an OpenFlow error code. */
ofputil_decode_flow_removed(struct ofputil_flow_removed *fr,
const struct ofp_header *oh)
{
- const struct ofputil_msg_type *type;
- enum ofputil_msg_code code;
+ enum ofpraw raw;
+ struct ofpbuf b;
- ofputil_decode_msg_type(oh, &type);
- code = ofputil_msg_type_code(type);
- if (code == OFPUTIL_OFPT_FLOW_REMOVED) {
+ ofpbuf_use_const(&b, oh, ntohs(oh->length));
+ raw = ofpraw_pull_assert(&b);
+ if (raw == OFPRAW_OFPT10_FLOW_REMOVED) {
const struct ofp_flow_removed *ofr;
- ofr = (const struct ofp_flow_removed *) oh;
+ ofr = ofpbuf_pull(&b, sizeof *ofr);
+
ofputil_cls_rule_from_ofp10_match(&ofr->match, ntohs(ofr->priority),
&fr->rule);
fr->cookie = ofr->cookie;
fr->idle_timeout = ntohs(ofr->idle_timeout);
fr->packet_count = ntohll(ofr->packet_count);
fr->byte_count = ntohll(ofr->byte_count);
- } else if (code == OFPUTIL_NXT_FLOW_REMOVED) {
+ } else if (raw == OFPRAW_NXT_FLOW_REMOVED) {
struct nx_flow_removed *nfr;
- struct ofpbuf b;
int error;
- ofpbuf_use_const(&b, oh, ntohs(oh->length));
-
nfr = ofpbuf_pull(&b, sizeof *nfr);
error = nx_pull_match(&b, ntohs(nfr->match_len), ntohs(nfr->priority),
&fr->rule, NULL, NULL);
case OFPUTIL_P_OF10_TID: {
struct ofp_flow_removed *ofr;
- ofr = make_openflow_xid(sizeof *ofr, OFPT_FLOW_REMOVED, htonl(0),
- &msg);
+ msg = ofpraw_alloc_xid(OFPRAW_OFPT10_FLOW_REMOVED, OFP10_VERSION,
+ htonl(0), 0);
+ ofr = ofpbuf_put_zeros(msg, sizeof *ofr);
ofputil_cls_rule_to_ofp10_match(&fr->rule, &ofr->match);
ofr->cookie = fr->cookie;
ofr->priority = htons(fr->rule.priority);
struct nx_flow_removed *nfr;
int match_len;
- make_nxmsg_xid(sizeof *nfr, NXT_FLOW_REMOVED, htonl(0), &msg);
- match_len = nx_put_match(msg, false, &fr->rule, 0, 0);
+ msg = ofpraw_alloc_xid(OFPRAW_NXT_FLOW_REMOVED, OFP10_VERSION,
+ htonl(0), NXM_TYPICAL_LEN);
+ nfr = ofpbuf_put_zeros(msg, sizeof *nfr);
+ match_len = nx_put_match(msg, &fr->rule, 0, 0);
- nfr = msg->data;
+ nfr = msg->l3;
nfr->cookie = fr->cookie;
nfr->priority = htons(fr->rule.priority);
nfr->reason = fr->reason;
break;
}
+ case OFPUTIL_P_OF12:
default:
NOT_REACHED();
}
ofputil_decode_packet_in(struct ofputil_packet_in *pin,
const struct ofp_header *oh)
{
- const struct ofputil_msg_type *type;
- enum ofputil_msg_code code;
+ enum ofpraw raw;
+ struct ofpbuf b;
- ofputil_decode_msg_type(oh, &type);
- code = ofputil_msg_type_code(type);
memset(pin, 0, sizeof *pin);
- if (code == OFPUTIL_OFPT_PACKET_IN) {
- const struct ofp_packet_in *opi = (const struct ofp_packet_in *) oh;
+ ofpbuf_use_const(&b, oh, ntohs(oh->length));
+ raw = ofpraw_pull_assert(&b);
+ if (raw == OFPRAW_OFPT10_PACKET_IN) {
+ const struct ofp_packet_in *opi;
+
+ opi = ofpbuf_pull(&b, offsetof(struct ofp_packet_in, data));
pin->packet = opi->data;
- pin->packet_len = ntohs(opi->header.length)
- - offsetof(struct ofp_packet_in, data);
+ pin->packet_len = b.size;
pin->fmd.in_port = ntohs(opi->in_port);
pin->reason = opi->reason;
pin->buffer_id = ntohl(opi->buffer_id);
pin->total_len = ntohs(opi->total_len);
- } else if (code == OFPUTIL_NXT_PACKET_IN) {
+ } else if (raw == OFPRAW_NXT_PACKET_IN) {
const struct nx_packet_in *npi;
struct cls_rule rule;
- struct ofpbuf b;
int error;
- ofpbuf_use_const(&b, oh, ntohs(oh->length));
-
npi = ofpbuf_pull(&b, sizeof *npi);
error = nx_pull_match_loose(&b, ntohs(npi->match_len), 0, &rule, NULL,
NULL);
/* Add OFPT_PACKET_IN. */
if (packet_in_format == NXPIF_OPENFLOW10) {
- size_t header_len = offsetof(struct ofp_packet_in, data);
struct ofp_packet_in *opi;
- packet = ofpbuf_new(send_len + header_len);
- opi = ofpbuf_put_zeros(packet, header_len);
- opi->header.version = OFP10_VERSION;
- opi->header.type = OFPT_PACKET_IN;
+ packet = ofpraw_alloc_xid(OFPRAW_OFPT10_PACKET_IN, OFP10_VERSION,
+ htonl(0), send_len);
+ opi = ofpbuf_put_zeros(packet, offsetof(struct ofp_packet_in, data));
opi->total_len = htons(pin->total_len);
opi->in_port = htons(pin->fmd.in_port);
opi->reason = pin->reason;
size_t match_len;
size_t i;
- /* Estimate of required PACKET_IN length includes the NPI header, space
- * for the match (2 times sizeof the metadata seems like enough), 2
- * bytes for padding, and the packet length. */
- packet = ofpbuf_new(sizeof *npi + sizeof(struct flow_metadata) * 2
- + 2 + send_len);
-
cls_rule_init_catchall(&rule, 0);
cls_rule_set_tun_id_masked(&rule, pin->fmd.tun_id,
pin->fmd.tun_id_mask);
cls_rule_set_in_port(&rule, pin->fmd.in_port);
+ /* The final argument is just an estimate of the space required. */
+ packet = ofpraw_alloc_xid(OFPRAW_NXT_PACKET_IN, OFP10_VERSION,
+ htonl(0), (sizeof(struct flow_metadata) * 2
+ + 2 + send_len));
ofpbuf_put_zeros(packet, sizeof *npi);
- match_len = nx_put_match(packet, false, &rule, 0, 0);
+ match_len = nx_put_match(packet, &rule, 0, 0);
ofpbuf_put_zeros(packet, 2);
ofpbuf_put(packet, pin->packet, send_len);
- npi = packet->data;
- npi->nxh.header.version = OFP10_VERSION;
- npi->nxh.header.type = OFPT_VENDOR;
- npi->nxh.vendor = htonl(NX_VENDOR_ID);
- npi->nxh.subtype = htonl(NXT_PACKET_IN);
-
+ npi = packet->l3;
npi->buffer_id = htonl(pin->buffer_id);
npi->total_len = htons(pin->total_len);
npi->reason = pin->reason;
} else {
NOT_REACHED();
}
- update_openflow_length(packet);
+ ofpmsg_update_length(packet);
return packet;
}
* Returns 0 if successful, otherwise an OFPERR_* value. */
enum ofperr
ofputil_decode_packet_out(struct ofputil_packet_out *po,
- const struct ofp_packet_out *opo,
+ const struct ofp_header *oh,
struct ofpbuf *ofpacts)
{
+ const struct ofp_packet_out *opo;
enum ofperr error;
+ enum ofpraw raw;
struct ofpbuf b;
+ ofpbuf_use_const(&b, oh, ntohs(oh->length));
+ raw = ofpraw_pull_assert(&b);
+ assert(raw == OFPRAW_OFPT10_PACKET_OUT);
+
+ opo = ofpbuf_pull(&b, sizeof *opo);
po->buffer_id = ntohl(opo->buffer_id);
po->in_port = ntohs(opo->in_port);
if (po->in_port >= OFPP_MAX && po->in_port != OFPP_LOCAL
return OFPERR_NXBRC_BAD_IN_PORT;
}
- ofpbuf_use_const(&b, opo, ntohs(opo->header.length));
- ofpbuf_pull(&b, sizeof *opo);
-
error = ofpacts_pull_openflow10(&b, ntohs(opo->actions_len), ofpacts);
if (error) {
return error;
}
static size_t
-ofputil_get_phy_port_size(uint8_t ofp_version)
-{
- return ofp_version == OFP10_VERSION ? sizeof(struct ofp10_phy_port)
- : sizeof(struct ofp11_port);
+ofputil_get_phy_port_size(enum ofp_version ofp_version)
+{
+ switch (ofp_version) {
+ case OFP10_VERSION:
+ return sizeof(struct ofp10_phy_port);
+ case OFP11_VERSION:
+ case OFP12_VERSION:
+ return sizeof(struct ofp11_port);
+ default:
+ NOT_REACHED();
+ }
}
static void
}
static void
-ofputil_put_phy_port(uint8_t ofp_version, const struct ofputil_phy_port *pp,
- struct ofpbuf *b)
+ofputil_put_phy_port(enum ofp_version ofp_version,
+ const struct ofputil_phy_port *pp, struct ofpbuf *b)
{
- if (ofp_version == OFP10_VERSION) {
+ switch (ofp_version) {
+ case OFP10_VERSION: {
struct ofp10_phy_port *opp;
if (b->size + sizeof *opp <= UINT16_MAX) {
opp = ofpbuf_put_uninit(b, sizeof *opp);
ofputil_encode_ofp10_phy_port(pp, opp);
}
- } else {
+ break;
+ }
+
+ case OFP11_VERSION:
+ case OFP12_VERSION: {
struct ofp11_port *op;
if (b->size + sizeof *op <= UINT16_MAX) {
op = ofpbuf_put_uninit(b, sizeof *op);
ofputil_encode_ofp11_port(pp, op);
}
+ break;
+ }
+
+ default:
+ NOT_REACHED();
}
}
void
-ofputil_append_port_desc_stats_reply(uint8_t ofp_version,
+ofputil_append_port_desc_stats_reply(enum ofp_version ofp_version,
const struct ofputil_phy_port *pp,
struct list *replies)
{
- if (ofp_version == OFP10_VERSION) {
+ switch (ofp_version) {
+ case OFP10_VERSION: {
struct ofp10_phy_port *opp;
- opp = ofputil_append_stats_reply(sizeof *opp, replies);
+ opp = ofpmp_append(replies, sizeof *opp);
ofputil_encode_ofp10_phy_port(pp, opp);
- } else {
+ break;
+ }
+
+ case OFP11_VERSION:
+ case OFP12_VERSION: {
struct ofp11_port *op;
- op = ofputil_append_stats_reply(sizeof *op, replies);
+ op = ofpmp_append(replies, sizeof *op);
ofputil_encode_ofp11_port(pp, op);
+ break;
+ }
+
+ default:
+ NOT_REACHED();
}
}
\f
/* ofputil_switch_features */
#define OFPC_COMMON (OFPC_FLOW_STATS | OFPC_TABLE_STATS | OFPC_PORT_STATS | \
- OFPC_IP_REASM | OFPC_QUEUE_STATS | OFPC_ARP_MATCH_IP)
+ OFPC_IP_REASM | OFPC_QUEUE_STATS)
BUILD_ASSERT_DECL((int) OFPUTIL_C_FLOW_STATS == OFPC_FLOW_STATS);
BUILD_ASSERT_DECL((int) OFPUTIL_C_TABLE_STATS == OFPC_TABLE_STATS);
BUILD_ASSERT_DECL((int) OFPUTIL_C_PORT_STATS == OFPC_PORT_STATS);
{ 0, 0 },
};
-static const struct ofputil_action_bit_translation of11_action_bits[] = {
- { OFPUTIL_A_OUTPUT, OFPAT11_OUTPUT },
- { OFPUTIL_A_SET_VLAN_VID, OFPAT11_SET_VLAN_VID },
- { OFPUTIL_A_SET_VLAN_PCP, OFPAT11_SET_VLAN_PCP },
- { OFPUTIL_A_SET_DL_SRC, OFPAT11_SET_DL_SRC },
- { OFPUTIL_A_SET_DL_DST, OFPAT11_SET_DL_DST },
- { OFPUTIL_A_SET_NW_SRC, OFPAT11_SET_NW_SRC },
- { OFPUTIL_A_SET_NW_DST, OFPAT11_SET_NW_DST },
- { OFPUTIL_A_SET_NW_TOS, OFPAT11_SET_NW_TOS },
- { OFPUTIL_A_SET_NW_ECN, OFPAT11_SET_NW_ECN },
- { OFPUTIL_A_SET_TP_SRC, OFPAT11_SET_TP_SRC },
- { OFPUTIL_A_SET_TP_DST, OFPAT11_SET_TP_DST },
- { OFPUTIL_A_COPY_TTL_OUT, OFPAT11_COPY_TTL_OUT },
- { OFPUTIL_A_COPY_TTL_IN, OFPAT11_COPY_TTL_IN },
- { OFPUTIL_A_SET_MPLS_LABEL, OFPAT11_SET_MPLS_LABEL },
- { OFPUTIL_A_SET_MPLS_TC, OFPAT11_SET_MPLS_TC },
- { OFPUTIL_A_SET_MPLS_TTL, OFPAT11_SET_MPLS_TTL },
- { OFPUTIL_A_DEC_MPLS_TTL, OFPAT11_DEC_MPLS_TTL },
- { OFPUTIL_A_PUSH_VLAN, OFPAT11_PUSH_VLAN },
- { OFPUTIL_A_POP_VLAN, OFPAT11_POP_VLAN },
- { OFPUTIL_A_PUSH_MPLS, OFPAT11_PUSH_MPLS },
- { OFPUTIL_A_POP_MPLS, OFPAT11_POP_MPLS },
- { OFPUTIL_A_SET_QUEUE, OFPAT11_SET_QUEUE },
- { OFPUTIL_A_GROUP, OFPAT11_GROUP },
- { OFPUTIL_A_SET_NW_TTL, OFPAT11_SET_NW_TTL },
- { OFPUTIL_A_DEC_NW_TTL, OFPAT11_DEC_NW_TTL },
- { 0, 0 },
-};
-
static enum ofputil_action_bitmap
decode_action_bits(ovs_be32 of_actions,
const struct ofputil_action_bit_translation *x)
return ofputil_actions;
}
+static uint32_t
+ofputil_capabilities_mask(enum ofp_version ofp_version)
+{
+ /* Handle capabilities whose bit is unique for all Open Flow versions */
+ switch (ofp_version) {
+ case OFP10_VERSION:
+ case OFP11_VERSION:
+ return OFPC_COMMON | OFPC_ARP_MATCH_IP;
+ case OFP12_VERSION:
+ return OFPC_COMMON | OFPC12_PORT_BLOCKED;
+ default:
+ /* Caller needs to check osf->header.version itself */
+ return 0;
+ }
+}
+
/* Decodes an OpenFlow 1.0 or 1.1 "switch_features" structure 'osf' into an
* abstract representation in '*features'. Initializes '*b' to iterate over
* the OpenFlow port structures following 'osf' with later calls to
* ofputil_pull_phy_port(). Returns 0 if successful, otherwise an
* OFPERR_* value. */
enum ofperr
-ofputil_decode_switch_features(const struct ofp_switch_features *osf,
+ofputil_decode_switch_features(const struct ofp_header *oh,
struct ofputil_switch_features *features,
struct ofpbuf *b)
{
- ofpbuf_use_const(b, osf, ntohs(osf->header.length));
- ofpbuf_pull(b, sizeof *osf);
+ const struct ofp_switch_features *osf;
+ enum ofpraw raw;
+ ofpbuf_use_const(b, oh, ntohs(oh->length));
+ raw = ofpraw_pull_assert(b);
+
+ osf = ofpbuf_pull(b, sizeof *osf);
features->datapath_id = ntohll(osf->datapath_id);
features->n_buffers = ntohl(osf->n_buffers);
features->n_tables = osf->n_tables;
- features->capabilities = ntohl(osf->capabilities) & OFPC_COMMON;
+ features->capabilities = ntohl(osf->capabilities) &
+ ofputil_capabilities_mask(oh->version);
- if (b->size % ofputil_get_phy_port_size(osf->header.version)) {
+ if (b->size % ofputil_get_phy_port_size(oh->version)) {
return OFPERR_OFPBRC_BAD_LEN;
}
- if (osf->header.version == OFP10_VERSION) {
+ if (raw == OFPRAW_OFPT10_FEATURES_REPLY) {
if (osf->capabilities & htonl(OFPC10_STP)) {
features->capabilities |= OFPUTIL_C_STP;
}
features->actions = decode_action_bits(osf->actions, of10_action_bits);
- } else if (osf->header.version == OFP11_VERSION) {
+ } else if (raw == OFPRAW_OFPT11_FEATURES_REPLY) {
if (osf->capabilities & htonl(OFPC11_GROUP_STATS)) {
features->capabilities |= OFPUTIL_C_GROUP_STATS;
}
- features->actions = decode_action_bits(osf->actions, of11_action_bits);
+ features->actions = 0;
} else {
return OFPERR_OFPBRC_BAD_VERSION;
}
return 0;
}
-/* Returns true if the maximum number of ports are in 'osf'. */
+/* Returns true if the maximum number of ports are in 'oh'. */
static bool
-max_ports_in_features(const struct ofp_switch_features *osf)
+max_ports_in_features(const struct ofp_header *oh)
{
- size_t pp_size = ofputil_get_phy_port_size(osf->header.version);
- return ntohs(osf->header.length) + pp_size > UINT16_MAX;
+ size_t pp_size = ofputil_get_phy_port_size(oh->version);
+ return ntohs(oh->length) + pp_size > UINT16_MAX;
}
/* Given a buffer 'b' that contains a Features Reply message, checks if
bool
ofputil_switch_features_ports_trunc(struct ofpbuf *b)
{
- struct ofp_switch_features *osf = b->data;
+ struct ofp_header *oh = b->data;
- if (max_ports_in_features(osf)) {
+ if (max_ports_in_features(oh)) {
/* Remove all the ports. */
- b->size = sizeof(*osf);
- update_openflow_length(b);
+ b->size = (sizeof(struct ofp_header)
+ + sizeof(struct ofp_switch_features));
+ ofpmsg_update_length(b);
return true;
}
{
struct ofp_switch_features *osf;
struct ofpbuf *b;
+ enum ofp_version version;
+ enum ofpraw raw;
- osf = make_openflow_xid(sizeof *osf, OFPT_FEATURES_REPLY, xid, &b);
- osf->header.version = ofputil_protocol_to_ofp_version(protocol);
+ version = ofputil_protocol_to_ofp_version(protocol);
+ switch (version) {
+ case OFP10_VERSION:
+ raw = OFPRAW_OFPT10_FEATURES_REPLY;
+ break;
+ case OFP11_VERSION:
+ case OFP12_VERSION:
+ raw = OFPRAW_OFPT11_FEATURES_REPLY;
+ break;
+ default:
+ NOT_REACHED();
+ }
+ b = ofpraw_alloc_xid(raw, version, xid, 0);
+ osf = ofpbuf_put_zeros(b, sizeof *osf);
osf->datapath_id = htonll(features->datapath_id);
osf->n_buffers = htonl(features->n_buffers);
osf->n_tables = features->n_tables;
osf->capabilities = htonl(features->capabilities & OFPC_COMMON);
- if (osf->header.version == OFP10_VERSION) {
+ osf->capabilities = htonl(features->capabilities &
+ ofputil_capabilities_mask(version));
+ switch (version) {
+ case OFP10_VERSION:
if (features->capabilities & OFPUTIL_C_STP) {
osf->capabilities |= htonl(OFPC10_STP);
}
osf->actions = encode_action_bits(features->actions, of10_action_bits);
- } else {
+ break;
+ case OFP11_VERSION:
+ case OFP12_VERSION:
if (features->capabilities & OFPUTIL_C_GROUP_STATS) {
osf->capabilities |= htonl(OFPC11_GROUP_STATS);
}
- osf->actions = encode_action_bits(features->actions, of11_action_bits);
+ break;
+ default:
+ NOT_REACHED();
}
return b;
ofputil_put_switch_features_port(const struct ofputil_phy_port *pp,
struct ofpbuf *b)
{
- const struct ofp_switch_features *osf = b->data;
+ const struct ofp_header *oh = b->data;
- ofputil_put_phy_port(osf->header.version, pp, b);
+ ofputil_put_phy_port(oh->version, pp, b);
}
\f
/* ofputil_port_status */
/* Decodes the OpenFlow "port status" message in '*ops' into an abstract form
* in '*ps'. Returns 0 if successful, otherwise an OFPERR_* value. */
enum ofperr
-ofputil_decode_port_status(const struct ofp_port_status *ops,
+ofputil_decode_port_status(const struct ofp_header *oh,
struct ofputil_port_status *ps)
{
+ const struct ofp_port_status *ops;
struct ofpbuf b;
int retval;
+ ofpbuf_use_const(&b, oh, ntohs(oh->length));
+ ofpraw_pull_assert(&b);
+ ops = ofpbuf_pull(&b, sizeof *ops);
+
if (ops->reason != OFPPR_ADD &&
ops->reason != OFPPR_DELETE &&
ops->reason != OFPPR_MODIFY) {
}
ps->reason = ops->reason;
- ofpbuf_use_const(&b, ops, ntohs(ops->header.length));
- ofpbuf_pull(&b, sizeof *ops);
- retval = ofputil_pull_phy_port(ops->header.version, &b, &ps->desc);
+ retval = ofputil_pull_phy_port(oh->version, &b, &ps->desc);
assert(retval != EOF);
return retval;
}
{
struct ofp_port_status *ops;
struct ofpbuf *b;
+ enum ofp_version version;
+ enum ofpraw raw;
+
+ version = ofputil_protocol_to_ofp_version(protocol);
+ switch (version) {
+ case OFP10_VERSION:
+ raw = OFPRAW_OFPT10_PORT_STATUS;
+ break;
+
+ case OFP11_VERSION:
+ case OFP12_VERSION:
+ raw = OFPRAW_OFPT11_PORT_STATUS;
+ break;
+
+ default:
+ NOT_REACHED();
+ }
- b = ofpbuf_new(sizeof *ops + sizeof(struct ofp11_port));
- ops = put_openflow_xid(sizeof *ops, OFPT_PORT_STATUS, htonl(0), b);
- ops->header.version = ofputil_protocol_to_ofp_version(protocol);
+ b = ofpraw_alloc_xid(raw, version, htonl(0), 0);
+ ops = ofpbuf_put_zeros(b, sizeof *ops);
ops->reason = ps->reason;
- ofputil_put_phy_port(ops->header.version, &ps->desc, b);
- update_openflow_length(b);
+ ofputil_put_phy_port(version, &ps->desc, b);
+ ofpmsg_update_length(b);
return b;
}
\f
ofputil_decode_port_mod(const struct ofp_header *oh,
struct ofputil_port_mod *pm)
{
- if (oh->version == OFP10_VERSION) {
- const struct ofp10_port_mod *opm = (const struct ofp10_port_mod *) oh;
+ enum ofpraw raw;
+ struct ofpbuf b;
- if (oh->length != htons(sizeof *opm)) {
- return OFPERR_OFPBRC_BAD_LEN;
- }
+ ofpbuf_use_const(&b, oh, ntohs(oh->length));
+ raw = ofpraw_pull_assert(&b);
+
+ if (raw == OFPRAW_OFPT10_PORT_MOD) {
+ const struct ofp10_port_mod *opm = b.data;
pm->port_no = ntohs(opm->port_no);
memcpy(pm->hw_addr, opm->hw_addr, ETH_ADDR_LEN);
pm->config = ntohl(opm->config) & OFPPC10_ALL;
pm->mask = ntohl(opm->mask) & OFPPC10_ALL;
pm->advertise = netdev_port_features_from_ofp10(opm->advertise);
- } else if (oh->version == OFP11_VERSION) {
- const struct ofp11_port_mod *opm = (const struct ofp11_port_mod *) oh;
+ } else if (raw == OFPRAW_OFPT11_PORT_MOD) {
+ const struct ofp11_port_mod *opm = b.data;
enum ofperr error;
- if (oh->length != htons(sizeof *opm)) {
- return OFPERR_OFPBRC_BAD_LEN;
- }
-
error = ofputil_port_from_ofp11(opm->port_no, &pm->port_no);
if (error) {
return error;
pm->mask = ntohl(opm->mask) & OFPPC11_ALL;
pm->advertise = netdev_port_features_from_ofp11(opm->advertise);
} else {
- return OFPERR_OFPBRC_BAD_VERSION;
+ return OFPERR_OFPBRC_BAD_TYPE;
}
pm->config &= pm->mask;
ofputil_encode_port_mod(const struct ofputil_port_mod *pm,
enum ofputil_protocol protocol)
{
- uint8_t ofp_version = ofputil_protocol_to_ofp_version(protocol);
+ enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol);
struct ofpbuf *b;
- if (ofp_version == OFP10_VERSION) {
+ switch (ofp_version) {
+ case OFP10_VERSION: {
struct ofp10_port_mod *opm;
- opm = make_openflow(sizeof *opm, OFPT10_PORT_MOD, &b);
+ b = ofpraw_alloc(OFPRAW_OFPT10_PORT_MOD, ofp_version, 0);
+ opm = ofpbuf_put_zeros(b, sizeof *opm);
opm->port_no = htons(pm->port_no);
memcpy(opm->hw_addr, pm->hw_addr, ETH_ADDR_LEN);
opm->config = htonl(pm->config & OFPPC10_ALL);
opm->mask = htonl(pm->mask & OFPPC10_ALL);
opm->advertise = netdev_port_features_to_ofp10(pm->advertise);
- } else if (ofp_version == OFP11_VERSION) {
+ break;
+ }
+
+ case OFP11_VERSION: {
struct ofp11_port_mod *opm;
- opm = make_openflow(sizeof *opm, OFPT11_PORT_MOD, &b);
+ b = ofpraw_alloc(OFPRAW_OFPT11_PORT_MOD, ofp_version, 0);
+ opm = ofpbuf_put_zeros(b, sizeof *opm);
opm->port_no = htonl(pm->port_no);
memcpy(opm->hw_addr, pm->hw_addr, ETH_ADDR_LEN);
opm->config = htonl(pm->config & OFPPC11_ALL);
opm->mask = htonl(pm->mask & OFPPC11_ALL);
opm->advertise = netdev_port_features_to_ofp11(pm->advertise);
- } else {
+ break;
+ }
+
+ case OFP12_VERSION:
+ default:
NOT_REACHED();
}
return b;
}
+\f
+/* ofputil_flow_monitor_request */
-struct ofpbuf *
-ofputil_encode_packet_out(const struct ofputil_packet_out *po)
+/* Converts an NXST_FLOW_MONITOR request in 'msg' into an abstract
+ * ofputil_flow_monitor_request in 'rq'.
+ *
+ * Multiple NXST_FLOW_MONITOR requests can be packed into a single OpenFlow
+ * message. Calling this function multiple times for a single 'msg' iterates
+ * through the requests. The caller must initially leave 'msg''s layer
+ * pointers null and not modify them between calls.
+ *
+ * Returns 0 if successful, EOF if no requests were left in this 'msg',
+ * otherwise an OFPERR_* value. */
+int
+ofputil_decode_flow_monitor_request(struct ofputil_flow_monitor_request *rq,
+ struct ofpbuf *msg)
{
- struct ofp_packet_out *opo;
- struct ofpbuf *msg;
- size_t size;
+ struct nx_flow_monitor_request *nfmr;
+ uint16_t flags;
- size = sizeof *opo + po->ofpacts_len;
- if (po->buffer_id == UINT32_MAX) {
- size += po->packet_len;
+ if (!msg->l2) {
+ msg->l2 = msg->data;
+ ofpraw_pull_assert(msg);
}
- msg = ofpbuf_new(size);
- put_openflow(sizeof *opo, OFPT_PACKET_OUT, msg);
- ofpacts_put_openflow10(po->ofpacts, po->ofpacts_len, msg);
+ if (!msg->size) {
+ return EOF;
+ }
- opo = msg->data;
- opo->buffer_id = htonl(po->buffer_id);
- opo->in_port = htons(po->in_port);
- opo->actions_len = htons(msg->size - sizeof *opo);
+ nfmr = ofpbuf_try_pull(msg, sizeof *nfmr);
+ if (!nfmr) {
+ VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR request has %zu "
+ "leftover bytes at end", msg->size);
+ return OFPERR_OFPBRC_BAD_LEN;
+ }
- if (po->buffer_id == UINT32_MAX) {
- ofpbuf_put(msg, po->packet, po->packet_len);
+ flags = ntohs(nfmr->flags);
+ if (!(flags & (NXFMF_ADD | NXFMF_DELETE | NXFMF_MODIFY))
+ || flags & ~(NXFMF_INITIAL | NXFMF_ADD | NXFMF_DELETE
+ | NXFMF_MODIFY | NXFMF_ACTIONS | NXFMF_OWN)) {
+ VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR has bad flags %#"PRIx16,
+ flags);
+ return OFPERR_NXBRC_FM_BAD_FLAGS;
}
- update_openflow_length(msg);
+ if (!is_all_zeros(nfmr->zeros, sizeof nfmr->zeros)) {
+ return OFPERR_NXBRC_MUST_BE_ZERO;
+ }
- return msg;
-}
+ rq->id = ntohl(nfmr->id);
+ rq->flags = flags;
+ rq->out_port = ntohs(nfmr->out_port);
+ rq->table_id = nfmr->table_id;
-/* Returns a string representing the message type of 'type'. The string is the
- * enumeration constant for the type, e.g. "OFPT_HELLO". For statistics
- * messages, the constant is followed by "request" or "reply",
- * e.g. "OFPST_AGGREGATE reply". */
-const char *
-ofputil_msg_type_name(const struct ofputil_msg_type *type)
-{
- return type->name;
-}
-\f
-/* Allocates and stores in '*bufferp' a new ofpbuf with a size of
- * 'openflow_len', starting with an OpenFlow header with the given 'type' and
- * an arbitrary transaction id. Allocated bytes beyond the header, if any, are
- * zeroed.
- *
- * The caller is responsible for freeing '*bufferp' when it is no longer
- * needed.
- *
- * The OpenFlow header length is initially set to 'openflow_len'; if the
- * message is later extended, the length should be updated with
- * update_openflow_length() before sending.
- *
- * Returns the header. */
-void *
-make_openflow(size_t openflow_len, uint8_t type, struct ofpbuf **bufferp)
-{
- *bufferp = ofpbuf_new(openflow_len);
- return put_openflow_xid(openflow_len, type, alloc_xid(), *bufferp);
+ return nx_pull_match(msg, ntohs(nfmr->match_len), OFP_DEFAULT_PRIORITY,
+ &rq->match, NULL, NULL);
}
-/* Similar to make_openflow() but creates a Nicira vendor extension message
- * with the specific 'subtype'. 'subtype' should be in host byte order. */
-void *
-make_nxmsg(size_t openflow_len, uint32_t subtype, struct ofpbuf **bufferp)
+void
+ofputil_append_flow_monitor_request(
+ const struct ofputil_flow_monitor_request *rq, struct ofpbuf *msg)
{
- return make_nxmsg_xid(openflow_len, subtype, alloc_xid(), bufferp);
-}
+ struct nx_flow_monitor_request *nfmr;
+ size_t start_ofs;
+ int match_len;
-/* Allocates and stores in '*bufferp' a new ofpbuf with a size of
- * 'openflow_len', starting with an OpenFlow header with the given 'type' and
- * transaction id 'xid'. Allocated bytes beyond the header, if any, are
- * zeroed.
- *
- * The caller is responsible for freeing '*bufferp' when it is no longer
- * needed.
- *
- * The OpenFlow header length is initially set to 'openflow_len'; if the
- * message is later extended, the length should be updated with
- * update_openflow_length() before sending.
- *
- * Returns the header. */
-void *
-make_openflow_xid(size_t openflow_len, uint8_t type, ovs_be32 xid,
- struct ofpbuf **bufferp)
-{
- *bufferp = ofpbuf_new(openflow_len);
- return put_openflow_xid(openflow_len, type, xid, *bufferp);
-}
+ if (!msg->size) {
+ ofpraw_put(OFPRAW_NXST_FLOW_MONITOR_REQUEST, OFP10_VERSION, msg);
+ }
-/* Similar to make_openflow_xid() but creates a Nicira vendor extension message
- * with the specific 'subtype'. 'subtype' should be in host byte order. */
-void *
-make_nxmsg_xid(size_t openflow_len, uint32_t subtype, ovs_be32 xid,
- struct ofpbuf **bufferp)
-{
- *bufferp = ofpbuf_new(openflow_len);
- return put_nxmsg_xid(openflow_len, subtype, xid, *bufferp);
-}
+ start_ofs = msg->size;
+ ofpbuf_put_zeros(msg, sizeof *nfmr);
+ match_len = nx_put_match(msg, &rq->match, htonll(0), htonll(0));
-/* Appends 'openflow_len' bytes to 'buffer', starting with an OpenFlow header
- * with the given 'type' and an arbitrary transaction id. Allocated bytes
- * beyond the header, if any, are zeroed.
- *
- * The OpenFlow header length is initially set to 'openflow_len'; if the
- * message is later extended, the length should be updated with
- * update_openflow_length() before sending.
- *
- * Returns the header. */
-void *
-put_openflow(size_t openflow_len, uint8_t type, struct ofpbuf *buffer)
-{
- return put_openflow_xid(openflow_len, type, alloc_xid(), buffer);
+ nfmr = ofpbuf_at_assert(msg, start_ofs, sizeof *nfmr);
+ nfmr->id = htonl(rq->id);
+ nfmr->flags = htons(rq->flags);
+ nfmr->out_port = htons(rq->out_port);
+ nfmr->match_len = htons(match_len);
+ nfmr->table_id = rq->table_id;
}
-/* Appends 'openflow_len' bytes to 'buffer', starting with an OpenFlow header
- * with the given 'type' and an transaction id 'xid'. Allocated bytes beyond
- * the header, if any, are zeroed.
+/* Converts an NXST_FLOW_MONITOR reply (also known as a flow update) in 'msg'
+ * into an abstract ofputil_flow_update in 'update'. The caller must have
+ * initialized update->match to point to space allocated for a cls_rule.
*
- * The OpenFlow header length is initially set to 'openflow_len'; if the
- * message is later extended, the length should be updated with
- * update_openflow_length() before sending.
+ * Uses 'ofpacts' to store the abstract OFPACT_* version of the update's
+ * actions (except for NXFME_ABBREV, which never includes actions). The caller
+ * must initialize 'ofpacts' and retains ownership of it. 'update->ofpacts'
+ * will point into the 'ofpacts' buffer.
*
- * Returns the header. */
-void *
-put_openflow_xid(size_t openflow_len, uint8_t type, ovs_be32 xid,
- struct ofpbuf *buffer)
+ * Multiple flow updates can be packed into a single OpenFlow message. Calling
+ * this function multiple times for a single 'msg' iterates through the
+ * updates. The caller must initially leave 'msg''s layer pointers null and
+ * not modify them between calls.
+ *
+ * Returns 0 if successful, EOF if no updates were left in this 'msg',
+ * otherwise an OFPERR_* value. */
+int
+ofputil_decode_flow_update(struct ofputil_flow_update *update,
+ struct ofpbuf *msg, struct ofpbuf *ofpacts)
{
- struct ofp_header *oh;
+ struct nx_flow_update_header *nfuh;
+ unsigned int length;
- assert(openflow_len >= sizeof *oh);
- assert(openflow_len <= UINT16_MAX);
+ if (!msg->l2) {
+ msg->l2 = msg->data;
+ ofpraw_pull_assert(msg);
+ }
- oh = ofpbuf_put_uninit(buffer, openflow_len);
- oh->version = OFP10_VERSION;
- oh->type = type;
- oh->length = htons(openflow_len);
- oh->xid = xid;
- memset(oh + 1, 0, openflow_len - sizeof *oh);
- return oh;
-}
+ if (!msg->size) {
+ return EOF;
+ }
-/* Similar to put_openflow() but append a Nicira vendor extension message with
- * the specific 'subtype'. 'subtype' should be in host byte order. */
-void *
-put_nxmsg(size_t openflow_len, uint32_t subtype, struct ofpbuf *buffer)
-{
- return put_nxmsg_xid(openflow_len, subtype, alloc_xid(), buffer);
-}
+ if (msg->size < sizeof(struct nx_flow_update_header)) {
+ goto bad_len;
+ }
-/* Similar to put_openflow_xid() but append a Nicira vendor extension message
- * with the specific 'subtype'. 'subtype' should be in host byte order. */
-void *
-put_nxmsg_xid(size_t openflow_len, uint32_t subtype, ovs_be32 xid,
- struct ofpbuf *buffer)
-{
- struct nicira_header *nxh;
+ nfuh = msg->data;
+ update->event = ntohs(nfuh->event);
+ length = ntohs(nfuh->length);
+ if (length > msg->size || length % 8) {
+ goto bad_len;
+ }
- nxh = put_openflow_xid(openflow_len, OFPT_VENDOR, xid, buffer);
- nxh->vendor = htonl(NX_VENDOR_ID);
- nxh->subtype = htonl(subtype);
- return nxh;
-}
+ if (update->event == NXFME_ABBREV) {
+ struct nx_flow_update_abbrev *nfua;
-/* Updates the 'length' field of the OpenFlow message in 'buffer' to
- * 'buffer->size'. */
-void
-update_openflow_length(struct ofpbuf *buffer)
-{
- struct ofp_header *oh = ofpbuf_at_assert(buffer, 0, sizeof *oh);
- oh->length = htons(buffer->size);
-}
+ if (length != sizeof *nfua) {
+ goto bad_len;
+ }
-static void
-put_stats__(ovs_be32 xid, uint8_t ofp_type,
- ovs_be16 ofpst_type, ovs_be32 nxst_subtype,
- struct ofpbuf *msg)
-{
- if (ofpst_type == htons(OFPST_VENDOR)) {
- struct nicira_stats_msg *nsm;
+ nfua = ofpbuf_pull(msg, sizeof *nfua);
+ update->xid = nfua->xid;
+ return 0;
+ } else if (update->event == NXFME_ADDED
+ || update->event == NXFME_DELETED
+ || update->event == NXFME_MODIFIED) {
+ struct nx_flow_update_full *nfuf;
+ unsigned int actions_len;
+ unsigned int match_len;
+ enum ofperr error;
- nsm = put_openflow_xid(sizeof *nsm, ofp_type, xid, msg);
- nsm->vsm.osm.type = ofpst_type;
- nsm->vsm.vendor = htonl(NX_VENDOR_ID);
- nsm->subtype = nxst_subtype;
- } else {
- struct ofp_stats_msg *osm;
+ if (length < sizeof *nfuf) {
+ goto bad_len;
+ }
- osm = put_openflow_xid(sizeof *osm, ofp_type, xid, msg);
- osm->type = ofpst_type;
- }
-}
+ nfuf = ofpbuf_pull(msg, sizeof *nfuf);
+ match_len = ntohs(nfuf->match_len);
+ if (sizeof *nfuf + match_len > length) {
+ goto bad_len;
+ }
-/* Creates a statistics request message with total length 'openflow_len'
- * (including all headers) and the given 'ofpst_type', and stores the buffer
- * containing the new message in '*bufferp'. If 'ofpst_type' is OFPST_VENDOR
- * then 'nxst_subtype' is used as the Nicira vendor extension statistics
- * subtype (otherwise 'nxst_subtype' is ignored).
- *
- * Initializes bytes following the headers to all-bits-zero.
- *
- * Returns the first byte of the new message. */
-void *
-ofputil_make_stats_request(size_t openflow_len, uint16_t ofpst_type,
- uint32_t nxst_subtype, struct ofpbuf **bufferp)
-{
- struct ofpbuf *msg;
+ update->reason = ntohs(nfuf->reason);
+ update->idle_timeout = ntohs(nfuf->idle_timeout);
+ update->hard_timeout = ntohs(nfuf->hard_timeout);
+ update->table_id = nfuf->table_id;
+ update->cookie = nfuf->cookie;
+
+ error = nx_pull_match(msg, match_len, ntohs(nfuf->priority),
+ update->match, NULL, NULL);
+ if (error) {
+ return error;
+ }
+
+ actions_len = length - sizeof *nfuf - ROUND_UP(match_len, 8);
+ error = ofpacts_pull_openflow10(msg, actions_len, ofpacts);
+ if (error) {
+ return error;
+ }
- msg = *bufferp = ofpbuf_new(openflow_len);
- put_stats__(alloc_xid(), OFPT10_STATS_REQUEST,
- htons(ofpst_type), htonl(nxst_subtype), msg);
- ofpbuf_padto(msg, openflow_len);
+ update->ofpacts = ofpacts->data;
+ update->ofpacts_len = ofpacts->size;
+ return 0;
+ } else {
+ VLOG_WARN_RL(&bad_ofmsg_rl,
+ "NXST_FLOW_MONITOR reply has bad event %"PRIu16,
+ ntohs(nfuh->event));
+ return OFPERR_OFPET_BAD_REQUEST;
+ }
- return msg->data;
+bad_len:
+ VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR reply has %zu "
+ "leftover bytes at end", msg->size);
+ return OFPERR_OFPBRC_BAD_LEN;
}
-static void
-put_stats_reply__(const struct ofp_stats_msg *request, struct ofpbuf *msg)
+uint32_t
+ofputil_decode_flow_monitor_cancel(const struct ofp_header *oh)
{
- assert(request->header.type == OFPT10_STATS_REQUEST ||
- request->header.type == OFPT10_STATS_REPLY);
- put_stats__(request->header.xid, OFPT10_STATS_REPLY, request->type,
- (request->type != htons(OFPST_VENDOR)
- ? htonl(0)
- : ((const struct nicira_stats_msg *) request)->subtype),
- msg);
+ const struct nx_flow_monitor_cancel *cancel = ofpmsg_body(oh);
+
+ return ntohl(cancel->id);
}
-/* Creates a statistics reply message with total length 'openflow_len'
- * (including all headers) and the same type (either a standard OpenFlow
- * statistics type or a Nicira extension type and subtype) as 'request', and
- * stores the buffer containing the new message in '*bufferp'.
- *
- * Initializes bytes following the headers to all-bits-zero.
- *
- * Returns the first byte of the new message. */
-void *
-ofputil_make_stats_reply(size_t openflow_len,
- const struct ofp_stats_msg *request,
- struct ofpbuf **bufferp)
+struct ofpbuf *
+ofputil_encode_flow_monitor_cancel(uint32_t id)
{
+ struct nx_flow_monitor_cancel *nfmc;
struct ofpbuf *msg;
- msg = *bufferp = ofpbuf_new(openflow_len);
- put_stats_reply__(request, msg);
- ofpbuf_padto(msg, openflow_len);
-
- return msg->data;
+ msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MONITOR_CANCEL, OFP10_VERSION, 0);
+ nfmc = ofpbuf_put_uninit(msg, sizeof *nfmc);
+ nfmc->id = htonl(id);
+ return msg;
}
-/* Initializes 'replies' as a list of ofpbufs that will contain a series of
- * replies to 'request', which should be an OpenFlow or Nicira extension
- * statistics request. Initially 'replies' will have a single reply message
- * that has only a header. The functions ofputil_reserve_stats_reply() and
- * ofputil_append_stats_reply() may be used to add to the reply. */
void
-ofputil_start_stats_reply(const struct ofp_stats_msg *request,
- struct list *replies)
+ofputil_start_flow_update(struct list *replies)
{
struct ofpbuf *msg;
- msg = ofpbuf_new(1024);
- put_stats_reply__(request, msg);
+ msg = ofpraw_alloc_xid(OFPRAW_NXST_FLOW_MONITOR_REPLY, OFP10_VERSION,
+ htonl(0), 1024);
list_init(replies);
list_push_back(replies, &msg->list_node);
}
-/* Prepares to append up to 'len' bytes to the series of statistics replies in
- * 'replies', which should have been initialized with
- * ofputil_start_stats_reply(). Returns an ofpbuf with at least 'len' bytes of
- * tailroom. (The 'len' bytes have not actually be allocated; the caller must
- * do so with e.g. ofpbuf_put_uninit().) */
-struct ofpbuf *
-ofputil_reserve_stats_reply(size_t len, struct list *replies)
+void
+ofputil_append_flow_update(const struct ofputil_flow_update *update,
+ struct list *replies)
{
- struct ofpbuf *msg = ofpbuf_from_list(list_back(replies));
- struct ofp_stats_msg *osm = msg->data;
+ struct nx_flow_update_header *nfuh;
+ struct ofpbuf *msg;
+ size_t start_ofs;
+
+ msg = ofpbuf_from_list(list_back(replies));
+ start_ofs = msg->size;
+
+ if (update->event == NXFME_ABBREV) {
+ struct nx_flow_update_abbrev *nfua;
- if (msg->size + len <= UINT16_MAX) {
- ofpbuf_prealloc_tailroom(msg, len);
+ nfua = ofpbuf_put_zeros(msg, sizeof *nfua);
+ nfua->xid = update->xid;
} else {
- osm->flags |= htons(OFPSF_REPLY_MORE);
+ struct nx_flow_update_full *nfuf;
+ int match_len;
+
+ ofpbuf_put_zeros(msg, sizeof *nfuf);
+ match_len = nx_put_match(msg, update->match, htonll(0), htonll(0));
+ ofpacts_put_openflow10(update->ofpacts, update->ofpacts_len, msg);
- msg = ofpbuf_new(MAX(1024, sizeof(struct nicira_stats_msg) + len));
- put_stats_reply__(osm, msg);
- list_push_back(replies, &msg->list_node);
+ nfuf = ofpbuf_at_assert(msg, start_ofs, sizeof *nfuf);
+ nfuf->reason = htons(update->reason);
+ nfuf->priority = htons(update->match->priority);
+ nfuf->idle_timeout = htons(update->idle_timeout);
+ nfuf->hard_timeout = htons(update->hard_timeout);
+ nfuf->match_len = htons(match_len);
+ nfuf->table_id = update->table_id;
+ nfuf->cookie = update->cookie;
}
- return msg;
-}
-/* Appends 'len' bytes to the series of statistics replies in 'replies', and
- * returns the first byte. */
-void *
-ofputil_append_stats_reply(size_t len, struct list *replies)
-{
- return ofpbuf_put_uninit(ofputil_reserve_stats_reply(len, replies), len);
-}
+ nfuh = ofpbuf_at_assert(msg, start_ofs, sizeof *nfuh);
+ nfuh->length = htons(msg->size - start_ofs);
+ nfuh->event = htons(update->event);
-/* Sometimes, when composing stats replies, it's difficult to predict how long
- * an individual reply chunk will be before actually encoding it into the reply
- * buffer. This function allows easy handling of this case: just encode the
- * reply, then use this function to break the message into two pieces if it
- * exceeds the OpenFlow message limit.
- *
- * In detail, if the final stats message in 'replies' is too long for OpenFlow,
- * this function breaks it into two separate stats replies, the first one with
- * the first 'start_ofs' bytes, the second one containing the bytes from that
- * offset onward. */
-void
-ofputil_postappend_stats_reply(size_t start_ofs, struct list *replies)
+ ofpmp_postappend(replies, start_ofs);
+}
+\f
+struct ofpbuf *
+ofputil_encode_packet_out(const struct ofputil_packet_out *po)
{
- struct ofpbuf *msg = ofpbuf_from_list(list_back(replies));
+ struct ofp_packet_out *opo;
+ size_t actions_ofs;
+ struct ofpbuf *msg;
+ size_t size;
- assert(start_ofs <= UINT16_MAX);
- if (msg->size > UINT16_MAX) {
- size_t len = msg->size - start_ofs;
- memcpy(ofputil_append_stats_reply(len, replies),
- (const uint8_t *) msg->data + start_ofs, len);
- msg->size = start_ofs;
+ size = po->ofpacts_len;
+ if (po->buffer_id == UINT32_MAX) {
+ size += po->packet_len;
}
-}
-/* Returns the first byte past the ofp_stats_msg header in 'oh'. */
-const void *
-ofputil_stats_body(const struct ofp_header *oh)
-{
- assert(oh->type == OFPT10_STATS_REQUEST || oh->type == OFPT10_STATS_REPLY);
- return (const struct ofp_stats_msg *) oh + 1;
-}
+ msg = ofpraw_alloc(OFPRAW_OFPT10_PACKET_OUT, OFP10_VERSION, size);
+ ofpbuf_put_zeros(msg, sizeof *opo);
+ actions_ofs = msg->size;
+ ofpacts_put_openflow10(po->ofpacts, po->ofpacts_len, msg);
-/* Returns the number of bytes past the ofp_stats_msg header in 'oh'. */
-size_t
-ofputil_stats_body_len(const struct ofp_header *oh)
-{
- assert(oh->type == OFPT10_STATS_REQUEST || oh->type == OFPT10_STATS_REPLY);
- return ntohs(oh->length) - sizeof(struct ofp_stats_msg);
-}
+ opo = msg->l3;
+ opo->buffer_id = htonl(po->buffer_id);
+ opo->in_port = htons(po->in_port);
+ opo->actions_len = htons(msg->size - actions_ofs);
-/* Returns the first byte past the nicira_stats_msg header in 'oh'. */
-const void *
-ofputil_nxstats_body(const struct ofp_header *oh)
-{
- assert(oh->type == OFPT10_STATS_REQUEST || oh->type == OFPT10_STATS_REPLY);
- return ((const struct nicira_stats_msg *) oh) + 1;
-}
+ if (po->buffer_id == UINT32_MAX) {
+ ofpbuf_put(msg, po->packet, po->packet_len);
+ }
-/* Returns the number of bytes past the nicira_stats_msg header in 'oh'. */
-size_t
-ofputil_nxstats_body_len(const struct ofp_header *oh)
-{
- assert(oh->type == OFPT10_STATS_REQUEST || oh->type == OFPT10_STATS_REPLY);
- return ntohs(oh->length) - sizeof(struct nicira_stats_msg);
-}
+ ofpmsg_update_length(msg);
+ return msg;
+}
+\f
/* Creates and returns an OFPT_ECHO_REQUEST message with an empty payload. */
struct ofpbuf *
-make_echo_request(void)
+make_echo_request(enum ofp_version ofp_version)
{
- struct ofp_header *rq;
- struct ofpbuf *out = ofpbuf_new(sizeof *rq);
- rq = ofpbuf_put_uninit(out, sizeof *rq);
- rq->version = OFP10_VERSION;
- rq->type = OFPT_ECHO_REQUEST;
- rq->length = htons(sizeof *rq);
- rq->xid = htonl(0);
- return out;
+ return ofpraw_alloc_xid(OFPRAW_OFPT_ECHO_REQUEST, ofp_version,
+ htonl(0), 0);
}
/* Creates and returns an OFPT_ECHO_REPLY message matching the
struct ofpbuf *
make_echo_reply(const struct ofp_header *rq)
{
- size_t size = ntohs(rq->length);
- struct ofpbuf *out = ofpbuf_new(size);
- struct ofp_header *reply = ofpbuf_put(out, rq, size);
- reply->type = OFPT_ECHO_REPLY;
- return out;
+ struct ofpbuf rq_buf;
+ struct ofpbuf *reply;
+
+ ofpbuf_use_const(&rq_buf, rq, ntohs(rq->length));
+ ofpraw_pull_assert(&rq_buf);
+
+ reply = ofpraw_alloc_reply(OFPRAW_OFPT_ECHO_REPLY, rq, rq_buf.size);
+ ofpbuf_put(reply, rq_buf.data, rq_buf.size);
+ return reply;
}
struct ofpbuf *
-ofputil_encode_barrier_request(void)
+ofputil_encode_barrier_request(enum ofp_version ofp_version)
{
- struct ofpbuf *msg;
+ enum ofpraw type;
- make_openflow(sizeof(struct ofp_header), OFPT10_BARRIER_REQUEST, &msg);
- return msg;
+ switch (ofp_version) {
+ case OFP12_VERSION:
+ case OFP11_VERSION:
+ type = OFPRAW_OFPT11_BARRIER_REQUEST;
+ break;
+
+ case OFP10_VERSION:
+ type = OFPRAW_OFPT10_BARRIER_REQUEST;
+ break;
+
+ default:
+ NOT_REACHED();
+ }
+
+ return ofpraw_alloc(type, ofp_version, 0);
}
const char *
* port and returns 0. If no ports remain to be decoded, returns EOF.
* On an error, returns a positive OFPERR_* value. */
int
-ofputil_pull_phy_port(uint8_t ofp_version, struct ofpbuf *b,
+ofputil_pull_phy_port(enum ofp_version ofp_version, struct ofpbuf *b,
struct ofputil_phy_port *pp)
{
- if (ofp_version == OFP10_VERSION) {
+ switch (ofp_version) {
+ case OFP10_VERSION: {
const struct ofp10_phy_port *opp = ofpbuf_try_pull(b, sizeof *opp);
return opp ? ofputil_decode_ofp10_phy_port(pp, opp) : EOF;
- } else {
+ }
+ case OFP11_VERSION:
+ case OFP12_VERSION: {
const struct ofp11_port *op = ofpbuf_try_pull(b, sizeof *op);
return op ? ofputil_decode_ofp11_port(pp, op) : EOF;
}
+ default:
+ NOT_REACHED();
+ }
}
/* Given a buffer 'b' that contains an array of OpenFlow ports of type
}
#include "ofp-util.def"
-/* "Normalizes" the wildcards in 'rule'. That means:
- *
- * 1. If the type of level N is known, then only the valid fields for that
- * level may be specified. For example, ARP does not have a TOS field,
- * so nw_tos must be wildcarded if 'rule' specifies an ARP flow.
- * Similarly, IPv4 does not have any IPv6 addresses, so ipv6_src and
- * ipv6_dst (and other fields) must be wildcarded if 'rule' specifies an
- * IPv4 flow.
- *
- * 2. If the type of level N is not known (or not understood by Open
- * vSwitch), then no fields at all for that level may be specified. For
- * example, Open vSwitch does not understand SCTP, an L4 protocol, so the
- * L4 fields tp_src and tp_dst must be wildcarded if 'rule' specifies an
- * SCTP flow.
- */
-void
-ofputil_normalize_rule(struct cls_rule *rule)
+static void
+ofputil_normalize_rule__(struct cls_rule *rule, bool may_log)
{
enum {
MAY_NW_ADDR = 1 << 0, /* nw_src, nw_dst */
wc.wildcards |= FWW_NW_TTL;
}
if (!(may_match & MAY_ARP_SHA)) {
- wc.wildcards |= FWW_ARP_SHA;
+ memset(wc.arp_sha_mask, 0, ETH_ADDR_LEN);
}
if (!(may_match & MAY_ARP_THA)) {
- wc.wildcards |= FWW_ARP_THA;
+ memset(wc.arp_tha_mask, 0, ETH_ADDR_LEN);
}
if (!(may_match & MAY_IPV6)) {
wc.ipv6_src_mask = wc.ipv6_dst_mask = in6addr_any;
- wc.wildcards |= FWW_IPV6_LABEL;
+ wc.ipv6_label_mask = htonl(0);
}
if (!(may_match & MAY_ND_TARGET)) {
wc.nd_target_mask = in6addr_any;
/* Log any changes. */
if (!flow_wildcards_equal(&wc, &rule->wc)) {
- bool log = !VLOG_DROP_INFO(&bad_ofmsg_rl);
+ bool log = may_log && !VLOG_DROP_INFO(&bad_ofmsg_rl);
char *pre = log ? cls_rule_to_string(rule) : NULL;
rule->wc = wc;
}
}
+/* "Normalizes" the wildcards in 'rule'. That means:
+ *
+ * 1. If the type of level N is known, then only the valid fields for that
+ * level may be specified. For example, ARP does not have a TOS field,
+ * so nw_tos must be wildcarded if 'rule' specifies an ARP flow.
+ * Similarly, IPv4 does not have any IPv6 addresses, so ipv6_src and
+ * ipv6_dst (and other fields) must be wildcarded if 'rule' specifies an
+ * IPv4 flow.
+ *
+ * 2. If the type of level N is not known (or not understood by Open
+ * vSwitch), then no fields at all for that level may be specified. For
+ * example, Open vSwitch does not understand SCTP, an L4 protocol, so the
+ * L4 fields tp_src and tp_dst must be wildcarded if 'rule' specifies an
+ * SCTP flow.
+ *
+ * If this function changes 'rule', it logs a rate-limited informational
+ * message. */
+void
+ofputil_normalize_rule(struct cls_rule *rule)
+{
+ ofputil_normalize_rule__(rule, true);
+}
+
+/* Same as ofputil_normalize_rule() without the logging. Thus, this function
+ * is suitable for a program's internal use, whereas ofputil_normalize_rule()
+ * sense for use on flows received from elsewhere (so that a bug in the program
+ * that sent them can be reported and corrected). */
+void
+ofputil_normalize_rule_quiet(struct cls_rule *rule)
+{
+ ofputil_normalize_rule__(rule, false);
+}
+
/* Parses a key or a key-value pair from '*stringp'.
*
* On success: Stores the key into '*keyp'. Stores the value, if present, into
git://git.onelab.eu / sliver-openvswitch.git / blobdiff