/*
- * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013 Nicira, Inc.
+ * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
\f
/* Converting OpenFlow 1.0 to ofpacts. */
+union ofp_action {
+ ovs_be16 type;
+ struct ofp_action_header header;
+ struct ofp_action_vendor_header vendor;
+ struct ofp10_action_output output10;
+ struct ofp_action_vlan_vid vlan_vid;
+ struct ofp_action_vlan_pcp vlan_pcp;
+ struct ofp_action_nw_addr nw_addr;
+ struct ofp_action_nw_tos nw_tos;
+ struct ofp11_action_nw_ecn nw_ecn;
+ struct ofp11_action_nw_ttl nw_ttl;
+ struct ofp_action_tp_port tp_port;
+ struct ofp_action_dl_addr dl_addr;
+ struct ofp10_action_enqueue enqueue;
+ struct ofp11_action_output ofp11_output;
+ struct ofp11_action_push push;
+ struct ofp11_action_pop_mpls ofp11_pop_mpls;
+ struct ofp11_action_set_queue ofp11_set_queue;
+ struct ofp11_action_mpls_label ofp11_mpls_label;
+ struct ofp11_action_mpls_tc ofp11_mpls_tc;
+ struct ofp11_action_mpls_ttl ofp11_mpls_ttl;
+ struct ofp11_action_group group;
+ struct ofp12_action_set_field set_field;
+ struct nx_action_header nxa_header;
+ struct nx_action_resubmit resubmit;
+ struct nx_action_set_tunnel set_tunnel;
+ struct nx_action_set_tunnel64 set_tunnel64;
+ struct nx_action_write_metadata write_metadata;
+ struct nx_action_set_queue set_queue;
+ struct nx_action_reg_move reg_move;
+ struct nx_action_reg_load reg_load;
+ struct nx_action_stack stack;
+ struct nx_action_note note;
+ struct nx_action_multipath multipath;
+ struct nx_action_bundle bundle;
+ struct nx_action_output_reg output_reg;
+ struct nx_action_cnt_ids cnt_ids;
+ struct nx_action_fin_timeout fin_timeout;
+ struct nx_action_controller controller;
+ struct nx_action_push_mpls push_mpls;
+ struct nx_action_mpls_ttl mpls_ttl;
+ struct nx_action_pop_mpls pop_mpls;
+ struct nx_action_sample sample;
+ struct nx_action_learn learn;
+ struct nx_action_mpls_label mpls_label;
+ struct nx_action_mpls_tc mpls_tc;
+};
+
static enum ofperr
output_from_openflow10(const struct ofp10_action_output *oao,
struct ofpbuf *out)
output->port = u16_to_ofp(ntohs(oao->port));
output->max_len = ntohs(oao->max_len);
- return ofputil_check_output_port(output->port, OFPP_MAX);
+ return ofpact_check_output_port(output->port, OFPP_MAX);
}
static enum ofperr
ids->ofpact.compat = compat;
ids->n_controllers = 1;
ofpbuf_put(out, &id, sizeof id);
- ids = out->l2;
+ ids = out->frame;
ofpact_update_len(out, &ids->ofpact);
return error;
}
static enum ofperr
dec_ttl_cnt_ids_from_openflow(const struct nx_action_cnt_ids *nac_ids,
- struct ofpbuf *out)
+ struct ofpbuf *out)
{
struct ofpact_cnt_ids *ids;
size_t ids_size;
}
if (ids_size < ids->n_controllers * sizeof(ovs_be16)) {
- VLOG_WARN_RL(&rl, "Nicira action dec_ttl_cnt_ids only has %zu bytes "
- "allocated for controller ids. %zu bytes are required for "
+ VLOG_WARN_RL(&rl, "Nicira action dec_ttl_cnt_ids only has %"PRIuSIZE" bytes "
+ "allocated for controller ids. %"PRIuSIZE" bytes are required for "
"%"PRIu16" controllers.", ids_size,
ids->n_controllers * sizeof(ovs_be16), ids->n_controllers);
return OFPERR_OFPBAC_BAD_LEN;
for (i = 0; i < ids->n_controllers; i++) {
uint16_t id = ntohs(((ovs_be16 *)(nac_ids + 1))[i]);
ofpbuf_put(out, &id, sizeof id);
- ids = out->l2;
+ ids = out->frame;
}
ofpact_update_len(out, &ids->ofpact);
return 0;
}
+static enum ofperr
+push_mpls_from_openflow(ovs_be16 ethertype, struct ofpbuf *out)
+{
+ struct ofpact_push_mpls *oam;
+
+ if (!eth_type_mpls(ethertype)) {
+ return OFPERR_OFPBAC_BAD_ARGUMENT;
+ }
+ oam = ofpact_put_PUSH_MPLS(out);
+ oam->ethertype = ethertype;
+
+ return 0;
+}
+
static enum ofperr
decode_nxast_action(const union ofp_action *a, enum ofputil_action_code *code)
{
- const struct nx_action_header *nah = (const struct nx_action_header *) a;
+ const struct nx_action_header *nah = &a->nxa_header;
uint16_t len = ntohs(a->header.len);
if (len < sizeof(struct nx_action_header)) {
} else { \
return OFPERR_OFPBAC_BAD_LEN; \
} \
- NOT_REACHED();
+ OVS_NOT_REACHED();
#include "ofp-util.def"
case CONSTANT_HTONS(NXAST_SNAT__OBSOLETE):
* '*code' is indeterminate.
*
* The caller must have already verified that 'a''s length is potentially
- * correct (that is, a->header.len is nonzero and a multiple of sizeof(union
- * ofp_action) and no longer than the amount of space allocated to 'a').
+ * correct (that is, a->header.len is nonzero and a multiple of
+ * OFP_ACTION_ALIGN and no longer than the amount of space allocated to 'a').
*
* This function verifies that 'a''s length is correct for the type of action
* that it represents. */
ofpact_from_nxast(const union ofp_action *a, enum ofputil_action_code code,
struct ofpbuf *out)
{
- const struct nx_action_resubmit *nar;
- const struct nx_action_set_tunnel *nast;
- const struct nx_action_set_queue *nasq;
- const struct nx_action_note *nan;
- const struct nx_action_set_tunnel64 *nast64;
- const struct nx_action_write_metadata *nawm;
struct ofpact_tunnel *tunnel;
enum ofperr error = 0;
case OFPUTIL_ACTION_INVALID:
#define OFPAT10_ACTION(ENUM, STRUCT, NAME) case OFPUTIL_##ENUM:
#define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) case OFPUTIL_##ENUM:
+#define OFPAT13_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) case OFPUTIL_##ENUM:
#include "ofp-util.def"
- NOT_REACHED();
+ OVS_NOT_REACHED();
case OFPUTIL_NXAST_RESUBMIT:
- resubmit_from_openflow((const struct nx_action_resubmit *) a, out);
+ resubmit_from_openflow(&a->resubmit, out);
break;
case OFPUTIL_NXAST_SET_TUNNEL:
- nast = (const struct nx_action_set_tunnel *) a;
tunnel = ofpact_put_SET_TUNNEL(out);
tunnel->ofpact.compat = code;
- tunnel->tun_id = ntohl(nast->tun_id);
+ tunnel->tun_id = ntohl(a->set_tunnel.tun_id);
break;
case OFPUTIL_NXAST_WRITE_METADATA:
- nawm = ALIGNED_CAST(const struct nx_action_write_metadata *, a);
- error = metadata_from_nxast(nawm, out);
+ error = metadata_from_nxast(&a->write_metadata, out);
break;
case OFPUTIL_NXAST_SET_QUEUE:
- nasq = (const struct nx_action_set_queue *) a;
- ofpact_put_SET_QUEUE(out)->queue_id = ntohl(nasq->queue_id);
+ ofpact_put_SET_QUEUE(out)->queue_id = ntohl(a->set_queue.queue_id);
break;
case OFPUTIL_NXAST_POP_QUEUE:
break;
case OFPUTIL_NXAST_REG_MOVE:
- error = nxm_reg_move_from_openflow(
- (const struct nx_action_reg_move *) a, out);
+ error = nxm_reg_move_from_openflow(&a->reg_move, out);
break;
case OFPUTIL_NXAST_REG_LOAD:
- error = nxm_reg_load_from_openflow(
- ALIGNED_CAST(const struct nx_action_reg_load *, a), out);
+ error = nxm_reg_load_from_openflow(&a->reg_load, out);
break;
case OFPUTIL_NXAST_STACK_PUSH:
- error = nxm_stack_push_from_openflow(
- (const struct nx_action_stack *) a, out);
+ error = nxm_stack_push_from_openflow(&a->stack, out);
break;
case OFPUTIL_NXAST_STACK_POP:
- error = nxm_stack_pop_from_openflow(
- (const struct nx_action_stack *) a, out);
+ error = nxm_stack_pop_from_openflow(&a->stack, out);
break;
case OFPUTIL_NXAST_NOTE:
- nan = (const struct nx_action_note *) a;
- note_from_openflow(nan, out);
+ note_from_openflow(&a->note, out);
break;
case OFPUTIL_NXAST_SET_TUNNEL64:
- nast64 = ALIGNED_CAST(const struct nx_action_set_tunnel64 *, a);
tunnel = ofpact_put_SET_TUNNEL(out);
tunnel->ofpact.compat = code;
- tunnel->tun_id = ntohll(nast64->tun_id);
+ tunnel->tun_id = ntohll(a->set_tunnel64.tun_id);
break;
case OFPUTIL_NXAST_MULTIPATH:
- error = multipath_from_openflow((const struct nx_action_multipath *) a,
+ error = multipath_from_openflow(&a->multipath,
ofpact_put_MULTIPATH(out));
break;
case OFPUTIL_NXAST_BUNDLE:
case OFPUTIL_NXAST_BUNDLE_LOAD:
- error = bundle_from_openflow((const struct nx_action_bundle *) a, out);
+ error = bundle_from_openflow(&a->bundle, out);
break;
case OFPUTIL_NXAST_OUTPUT_REG:
- error = output_reg_from_openflow(
- (const struct nx_action_output_reg *) a, out);
+ error = output_reg_from_openflow(&a->output_reg, out);
break;
case OFPUTIL_NXAST_RESUBMIT_TABLE:
- nar = (const struct nx_action_resubmit *) a;
- error = resubmit_table_from_openflow(nar, out);
+ error = resubmit_table_from_openflow(&a->resubmit, out);
break;
case OFPUTIL_NXAST_LEARN:
- error = learn_from_openflow(
- ALIGNED_CAST(const struct nx_action_learn *, a), out);
+ error = learn_from_openflow(&a->learn, out);
break;
case OFPUTIL_NXAST_EXIT:
break;
case OFPUTIL_NXAST_DEC_TTL_CNT_IDS:
- error = dec_ttl_cnt_ids_from_openflow(
- (const struct nx_action_cnt_ids *) a, out);
+ error = dec_ttl_cnt_ids_from_openflow(&a->cnt_ids, out);
break;
case OFPUTIL_NXAST_FIN_TIMEOUT:
- fin_timeout_from_openflow(
- (const struct nx_action_fin_timeout *) a, out);
+ fin_timeout_from_openflow(&a->fin_timeout, out);
break;
case OFPUTIL_NXAST_CONTROLLER:
- controller_from_openflow((const struct nx_action_controller *) a, out);
+ controller_from_openflow(&a->controller, out);
break;
- case OFPUTIL_NXAST_PUSH_MPLS: {
- struct nx_action_push_mpls *nxapm = (struct nx_action_push_mpls *)a;
- if (!eth_type_mpls(nxapm->ethertype)) {
- return OFPERR_OFPBAC_BAD_ARGUMENT;
- }
- ofpact_put_PUSH_MPLS(out)->ethertype = nxapm->ethertype;
+ case OFPUTIL_NXAST_PUSH_MPLS:
+ error = push_mpls_from_openflow(a->push_mpls.ethertype, out);
break;
- }
- case OFPUTIL_NXAST_SET_MPLS_TTL: {
- struct nx_action_mpls_ttl *nxamt = (struct nx_action_mpls_ttl *)a;
- ofpact_put_SET_MPLS_TTL(out)->ttl = nxamt->ttl;
+ case OFPUTIL_NXAST_SET_MPLS_LABEL:
+ ofpact_put_SET_MPLS_LABEL(out)->label = a->mpls_label.label;
+ break;
+
+ case OFPUTIL_NXAST_SET_MPLS_TC:
+ ofpact_put_SET_MPLS_TC(out)->tc = a->mpls_tc.tc;
+ break;
+
+ case OFPUTIL_NXAST_SET_MPLS_TTL:
+ ofpact_put_SET_MPLS_TTL(out)->ttl = a->mpls_ttl.ttl;
break;
- }
case OFPUTIL_NXAST_DEC_MPLS_TTL:
ofpact_put_DEC_MPLS_TTL(out);
break;
- case OFPUTIL_NXAST_POP_MPLS: {
- struct nx_action_pop_mpls *nxapm = (struct nx_action_pop_mpls *)a;
- if (eth_type_mpls(nxapm->ethertype)) {
+ case OFPUTIL_NXAST_POP_MPLS:
+ if (eth_type_mpls(a->pop_mpls.ethertype)) {
return OFPERR_OFPBAC_BAD_ARGUMENT;
}
- ofpact_put_POP_MPLS(out)->ethertype = nxapm->ethertype;
+ ofpact_put_POP_MPLS(out)->ethertype = a->pop_mpls.ethertype;
break;
- }
case OFPUTIL_NXAST_SAMPLE:
- error = sample_from_openflow(
- (const struct nx_action_sample *) a, out);
+ error = sample_from_openflow(&a->sample, out);
break;
}
}
static enum ofperr
-ofpact_from_openflow10(const union ofp_action *a, struct ofpbuf *out)
+ofpact_from_openflow10(const union ofp_action *a,
+ enum ofp_version version OVS_UNUSED,
+ struct ofpbuf *out)
{
enum ofputil_action_code code;
enum ofperr error;
+ struct ofpact_vlan_vid *vlan_vid;
+ struct ofpact_vlan_pcp *vlan_pcp;
error = decode_openflow10_action(a, &code);
if (error) {
switch (code) {
case OFPUTIL_ACTION_INVALID:
#define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) case OFPUTIL_##ENUM:
+#define OFPAT13_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) case OFPUTIL_##ENUM:
#include "ofp-util.def"
- NOT_REACHED();
+ OVS_NOT_REACHED();
case OFPUTIL_OFPAT10_OUTPUT:
return output_from_openflow10(&a->output10, out);
if (a->vlan_vid.vlan_vid & ~htons(0xfff)) {
return OFPERR_OFPBAC_BAD_ARGUMENT;
}
- ofpact_put_SET_VLAN_VID(out)->vlan_vid = ntohs(a->vlan_vid.vlan_vid);
+ vlan_vid = ofpact_put_SET_VLAN_VID(out);
+ vlan_vid->vlan_vid = ntohs(a->vlan_vid.vlan_vid);
+ vlan_vid->push_vlan_if_needed = true;
+ vlan_vid->ofpact.compat = code;
break;
case OFPUTIL_OFPAT10_SET_VLAN_PCP:
if (a->vlan_pcp.vlan_pcp & ~7) {
return OFPERR_OFPBAC_BAD_ARGUMENT;
}
- ofpact_put_SET_VLAN_PCP(out)->vlan_pcp = a->vlan_pcp.vlan_pcp;
+ vlan_pcp = ofpact_put_SET_VLAN_PCP(out);
+ vlan_pcp->vlan_pcp = a->vlan_pcp.vlan_pcp;
+ vlan_pcp->push_vlan_if_needed = true;
+ vlan_pcp->ofpact.compat = code;
break;
case OFPUTIL_OFPAT10_STRIP_VLAN:
- ofpact_put_STRIP_VLAN(out);
+ ofpact_put_STRIP_VLAN(out)->ofpact.compat = code;
break;
case OFPUTIL_OFPAT10_SET_DL_SRC:
- memcpy(ofpact_put_SET_ETH_SRC(out)->mac,
- ((const struct ofp_action_dl_addr *) a)->dl_addr, ETH_ADDR_LEN);
+ memcpy(ofpact_put_SET_ETH_SRC(out)->mac, a->dl_addr.dl_addr,
+ ETH_ADDR_LEN);
break;
case OFPUTIL_OFPAT10_SET_DL_DST:
- memcpy(ofpact_put_SET_ETH_DST(out)->mac,
- ((const struct ofp_action_dl_addr *) a)->dl_addr, ETH_ADDR_LEN);
+ memcpy(ofpact_put_SET_ETH_DST(out)->mac, a->dl_addr.dl_addr,
+ ETH_ADDR_LEN);
break;
case OFPUTIL_OFPAT10_SET_NW_SRC:
if (a->nw_tos.nw_tos & ~IP_DSCP_MASK) {
return OFPERR_OFPBAC_BAD_ARGUMENT;
}
- ofpact_put_SET_IPV4_DSCP(out)->dscp = a->nw_tos.nw_tos;
+ ofpact_put_SET_IP_DSCP(out)->dscp = a->nw_tos.nw_tos;
break;
case OFPUTIL_OFPAT10_SET_TP_SRC:
break;
case OFPUTIL_OFPAT10_ENQUEUE:
- error = enqueue_from_openflow10((const struct ofp10_action_enqueue *) a,
- out);
+ error = enqueue_from_openflow10(&a->enqueue, out);
break;
#define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) case OFPUTIL_##ENUM:
return error;
}
+static enum ofperr ofpact_from_openflow11(const union ofp_action *,
+ enum ofp_version,
+ struct ofpbuf *out);
+
static inline union ofp_action *
action_next(const union ofp_action *a)
{
}
static inline bool
-action_is_valid(const union ofp_action *a, size_t n_actions)
+action_is_valid(const union ofp_action *a, size_t max_actions)
{
uint16_t len = ntohs(a->header.len);
return (!(len % OFP_ACTION_ALIGN)
- && len >= sizeof *a
- && len / sizeof *a <= n_actions);
+ && len >= OFP_ACTION_ALIGN
+ && len / OFP_ACTION_ALIGN <= max_actions);
}
/* This macro is careful to check for actions with bad lengths. */
-#define ACTION_FOR_EACH(ITER, LEFT, ACTIONS, N_ACTIONS) \
- for ((ITER) = (ACTIONS), (LEFT) = (N_ACTIONS); \
+#define ACTION_FOR_EACH(ITER, LEFT, ACTIONS, MAX_ACTIONS) \
+ for ((ITER) = (ACTIONS), (LEFT) = (MAX_ACTIONS); \
(LEFT) > 0 && action_is_valid(ITER, LEFT); \
- ((LEFT) -= ntohs((ITER)->header.len) / sizeof(union ofp_action), \
+ ((LEFT) -= ntohs((ITER)->header.len) / OFP_ACTION_ALIGN, \
(ITER) = action_next(ITER)))
static void
-log_bad_action(const union ofp_action *actions, size_t n_actions, size_t ofs,
- enum ofperr error)
+log_bad_action(const union ofp_action *actions, size_t max_actions,
+ const union ofp_action *bad_action, enum ofperr error)
{
if (!VLOG_DROP_WARN(&rl)) {
struct ds s;
ds_init(&s);
- ds_put_hex_dump(&s, actions, n_actions * sizeof *actions, 0, false);
- VLOG_WARN("bad action at offset %#zx (%s):\n%s",
- ofs * sizeof *actions, ofperr_get_name(error), ds_cstr(&s));
+ ds_put_hex_dump(&s, actions, max_actions * OFP_ACTION_ALIGN, 0, false);
+ VLOG_WARN("bad action at offset %#"PRIxPTR" (%s):\n%s",
+ (char *)bad_action - (char *)actions,
+ ofperr_get_name(error), ds_cstr(&s));
ds_destroy(&s);
}
}
static enum ofperr
ofpacts_from_openflow(const union ofp_action *in, size_t n_in,
- struct ofpbuf *out,
- enum ofperr (*ofpact_from_openflow)(
- const union ofp_action *a, struct ofpbuf *out))
+ enum ofp_version version, struct ofpbuf *out)
{
const union ofp_action *a;
size_t left;
+ enum ofperr (*ofpact_from_openflow)(const union ofp_action *a,
+ enum ofp_version,
+ struct ofpbuf *out) =
+ (version == OFP10_VERSION) ?
+ ofpact_from_openflow10 : ofpact_from_openflow11;
+
ACTION_FOR_EACH (a, left, in, n_in) {
- enum ofperr error = ofpact_from_openflow(a, out);
+ enum ofperr error = ofpact_from_openflow(a, version, out);
if (error) {
- log_bad_action(in, n_in, a - in, error);
+ log_bad_action(in, n_in, a, error);
return error;
}
}
if (left) {
enum ofperr error = OFPERR_OFPBAC_BAD_LEN;
- log_bad_action(in, n_in, n_in - left, error);
+ log_bad_action(in, n_in, a, error);
return error;
}
return 0;
}
-static enum ofperr
-ofpacts_from_openflow10(const union ofp_action *in, size_t n_in,
- struct ofpbuf *out)
-{
- return ofpacts_from_openflow(in, n_in, out, ofpact_from_openflow10);
-}
-
-static enum ofperr
-ofpacts_pull_actions(struct ofpbuf *openflow, unsigned int actions_len,
- struct ofpbuf *ofpacts,
- enum ofperr (*translate)(const union ofp_action *actions,
- size_t n_actions,
- struct ofpbuf *ofpacts))
-{
- static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
+/* Attempts to convert 'actions_len' bytes of OpenFlow actions from the
+ * front of 'openflow' into ofpacts. On success, replaces any existing content
+ * in 'ofpacts' by the converted ofpacts; on failure, clears 'ofpacts'.
+ * Returns 0 if successful, otherwise an OpenFlow error.
+ *
+ * Actions are processed according to their OpenFlow version which
+ * is provided in the 'version' parameter.
+ *
+ * In most places in OpenFlow 1.1 and 1.2, actions appear encapsulated in
+ * instructions, so you should call ofpacts_pull_openflow_instructions()
+ * instead of this function.
+ *
+ * The parsed actions are valid generically, but they may not be valid in a
+ * specific context. For example, port numbers up to OFPP_MAX are valid
+ * generically, but specific datapaths may only support port numbers in a
+ * smaller range. Use ofpacts_check() to additional check whether actions are
+ * valid in a specific context. */
+enum ofperr
+ofpacts_pull_openflow_actions(struct ofpbuf *openflow,
+ unsigned int actions_len,
+ enum ofp_version version,
+ struct ofpbuf *ofpacts) {
const union ofp_action *actions;
enum ofperr error;
actions = ofpbuf_try_pull(openflow, actions_len);
if (actions == NULL) {
VLOG_WARN_RL(&rl, "OpenFlow message actions length %u exceeds "
- "remaining message length (%zu)",
- actions_len, openflow->size);
+ "remaining message length (%"PRIu32")",
+ actions_len, ofpbuf_size(openflow));
return OFPERR_OFPBRC_BAD_LEN;
}
- error = translate(actions, actions_len / OFP_ACTION_ALIGN, ofpacts);
+ error = ofpacts_from_openflow(actions, actions_len / OFP_ACTION_ALIGN,
+ version, ofpacts);
if (error) {
ofpbuf_clear(ofpacts);
return error;
}
- error = ofpacts_verify(ofpacts->data, ofpacts->size);
+ error = ofpacts_verify(ofpbuf_data(ofpacts), ofpbuf_size(ofpacts));
if (error) {
ofpbuf_clear(ofpacts);
}
return error;
}
-/* Attempts to convert 'actions_len' bytes of OpenFlow 1.0 actions from the
- * front of 'openflow' into ofpacts. On success, replaces any existing content
- * in 'ofpacts' by the converted ofpacts; on failure, clears 'ofpacts'.
- * Returns 0 if successful, otherwise an OpenFlow error.
- *
- * The parsed actions are valid generically, but they may not be valid in a
- * specific context. For example, port numbers up to OFPP_MAX are valid
- * generically, but specific datapaths may only support port numbers in a
- * smaller range. Use ofpacts_check() to additional check whether actions are
- * valid in a specific context. */
-enum ofperr
-ofpacts_pull_openflow10(struct ofpbuf *openflow, unsigned int actions_len,
- struct ofpbuf *ofpacts)
-{
- return ofpacts_pull_actions(openflow, actions_len, ofpacts,
- ofpacts_from_openflow10);
-}
\f
/* OpenFlow 1.1 actions. */
* '*code' is indeterminate.
*
* The caller must have already verified that 'a''s length is potentially
- * correct (that is, a->header.len is nonzero and a multiple of sizeof(union
- * ofp_action) and no longer than the amount of space allocated to 'a').
+ * correct (that is, a->header.len is nonzero and a multiple of
+ * OFP_ACTION_ALIGN and no longer than the amount of space allocated to 'a').
*
* This function verifies that 'a''s length is correct for the type of action
* that it represents. */
} else { \
return OFPERR_OFPBAC_BAD_LEN; \
} \
- NOT_REACHED();
+ OVS_NOT_REACHED();
#include "ofp-util.def"
default:
}
}
+static enum ofperr
+set_field_from_openflow(const struct ofp12_action_set_field *oasf,
+ struct ofpbuf *ofpacts)
+{
+ uint16_t oasf_len = ntohs(oasf->len);
+ uint32_t oxm_header = ntohl(oasf->dst);
+ uint8_t oxm_length = NXM_LENGTH(oxm_header);
+ struct ofpact_set_field *sf;
+ const struct mf_field *mf;
+
+ /* ofp12_action_set_field is padded to 64 bits by zero */
+ if (oasf_len != ROUND_UP(sizeof *oasf + oxm_length, 8)) {
+ return OFPERR_OFPBAC_BAD_SET_LEN;
+ }
+ if (!is_all_zeros((const uint8_t *)oasf + sizeof *oasf + oxm_length,
+ oasf_len - oxm_length - sizeof *oasf)) {
+ return OFPERR_OFPBAC_BAD_SET_ARGUMENT;
+ }
+
+ if (NXM_HASMASK(oxm_header)) {
+ return OFPERR_OFPBAC_BAD_SET_TYPE;
+ }
+ mf = mf_from_nxm_header(oxm_header);
+ if (!mf) {
+ return OFPERR_OFPBAC_BAD_SET_TYPE;
+ }
+ ovs_assert(mf->n_bytes == oxm_length);
+ /* oxm_length is now validated to be compatible with mf_value. */
+ if (!mf->writable) {
+ VLOG_WARN_RL(&rl, "destination field %s is not writable", mf->name);
+ return OFPERR_OFPBAC_BAD_SET_ARGUMENT;
+ }
+ sf = ofpact_put_SET_FIELD(ofpacts);
+ sf->field = mf;
+ memcpy(&sf->value, oasf + 1, mf->n_bytes);
+
+ /* The value must be valid for match and must have the OFPVID_PRESENT bit
+ * on for OXM_OF_VLAN_VID. */
+ if (!mf_is_value_valid(mf, &sf->value)
+ || (mf->id == MFF_VLAN_VID
+ && !(sf->value.be16 & htons(OFPVID12_PRESENT)))) {
+ struct ds ds = DS_EMPTY_INITIALIZER;
+ mf_format(mf, &sf->value, NULL, &ds);
+ VLOG_WARN_RL(&rl, "Invalid value for set field %s: %s",
+ mf->name, ds_cstr(&ds));
+ ds_destroy(&ds);
+
+ return OFPERR_OFPBAC_BAD_SET_ARGUMENT;
+ }
+ return 0;
+}
+
+static void
+set_field_to_openflow12(const struct ofpact_set_field *sf,
+ struct ofpbuf *openflow)
+{
+ uint16_t padded_value_len = ROUND_UP(sf->field->n_bytes, 8);
+ struct ofp12_action_set_field *oasf;
+ char *value;
+
+ oasf = ofputil_put_OFPAT12_SET_FIELD(openflow);
+ oasf->dst = htonl(sf->field->oxm_header);
+ oasf->len = htons(sizeof *oasf + padded_value_len);
+
+ value = ofpbuf_put_zeros(openflow, padded_value_len);
+ memcpy(value, &sf->value, sf->field->n_bytes);
+}
+
+/* Convert 'sf' to one or two REG_LOADs. */
+static void
+set_field_to_nxast(const struct ofpact_set_field *sf, struct ofpbuf *openflow)
+{
+ const struct mf_field *mf = sf->field;
+ struct nx_action_reg_load *narl;
+
+ if (mf->n_bits > 64) {
+ ovs_assert(mf->n_bytes == 16); /* IPv6 addr. */
+ /* Split into 64bit chunks */
+ /* Lower bits first. */
+ narl = ofputil_put_NXAST_REG_LOAD(openflow);
+ narl->ofs_nbits = nxm_encode_ofs_nbits(0, 64);
+ narl->dst = htonl(mf->nxm_header);
+ memcpy(&narl->value, &sf->value.ipv6.s6_addr[8], sizeof narl->value);
+ /* Higher bits next. */
+ narl = ofputil_put_NXAST_REG_LOAD(openflow);
+ narl->ofs_nbits = nxm_encode_ofs_nbits(64, mf->n_bits - 64);
+ narl->dst = htonl(mf->nxm_header);
+ memcpy(&narl->value, &sf->value.ipv6.s6_addr[0], sizeof narl->value);
+ } else {
+ narl = ofputil_put_NXAST_REG_LOAD(openflow);
+ narl->ofs_nbits = nxm_encode_ofs_nbits(0, mf->n_bits);
+ narl->dst = htonl(mf->nxm_header);
+ memset(&narl->value, 0, 8 - mf->n_bytes);
+ memcpy((char*)&narl->value + (8 - mf->n_bytes),
+ &sf->value, mf->n_bytes);
+ }
+}
+
+/* Convert 'sf' to standard OpenFlow 1.1 actions, if we can, falling back
+ * to Nicira extensions if we must.
+ *
+ * We check only meta-flow types that can appear within set field actions and
+ * that have a mapping to compatible action types. These struct mf_field
+ * definitions have a defined OXM or NXM header value and specify the field as
+ * writable. */
+static void
+set_field_to_openflow11(const struct ofpact_set_field *sf,
+ struct ofpbuf *openflow)
+{
+ switch ((int) sf->field->id) {
+ case MFF_VLAN_TCI:
+ /* NXM_OF_VLAN_TCI to OpenFlow 1.1 mapping:
+ *
+ * If CFI=1, Add or modify VLAN VID & PCP.
+ * OpenFlow 1.1 set actions only apply if the packet
+ * already has VLAN tags. To be sure that is the case
+ * we have to push a VLAN header. As we do not support
+ * multiple layers of VLANs, this is a no-op, if a VLAN
+ * header already exists. This may backfire, however,
+ * when we start supporting multiple layers of VLANs.
+ * If CFI=0, strip VLAN header, if any.
+ */
+ if (sf->value.be16 & htons(VLAN_CFI)) {
+ /* Push a VLAN tag, if one was not seen at action validation
+ * time. */
+ if (!sf->flow_has_vlan) {
+ ofputil_put_OFPAT11_PUSH_VLAN(openflow)->ethertype
+ = htons(ETH_TYPE_VLAN_8021Q);
+ }
+ ofputil_put_OFPAT11_SET_VLAN_VID(openflow)->vlan_vid
+ = sf->value.be16 & htons(VLAN_VID_MASK);
+ ofputil_put_OFPAT11_SET_VLAN_PCP(openflow)->vlan_pcp
+ = vlan_tci_to_pcp(sf->value.be16);
+ } else {
+ /* If the flow did not match on vlan, we have no way of
+ * knowing if the vlan tag exists, so we must POP just to be
+ * sure. */
+ ofputil_put_OFPAT11_POP_VLAN(openflow);
+ }
+ break;
+
+ case MFF_VLAN_VID:
+ /* OXM VLAN_PCP to OpenFlow 1.1.
+ * Set field on OXM_OF_VLAN_VID onlyapplies to an existing vlan
+ * tag. Clear the OFPVID_PRESENT bit.
+ */
+ ofputil_put_OFPAT11_SET_VLAN_VID(openflow)->vlan_vid
+ = sf->value.be16 & htons(VLAN_VID_MASK);
+ break;
+
+ case MFF_VLAN_PCP:
+ /* OXM VLAN_PCP to OpenFlow 1.1.
+ * OXM_OF_VLAN_PCP only applies to existing vlan tag. */
+ ofputil_put_OFPAT11_SET_VLAN_PCP(openflow)->vlan_pcp = sf->value.u8;
+ break;
+
+ case MFF_ETH_SRC:
+ memcpy(ofputil_put_OFPAT11_SET_DL_SRC(openflow)->dl_addr,
+ sf->value.mac, ETH_ADDR_LEN);
+ break;
+
+ case MFF_ETH_DST:
+ memcpy(ofputil_put_OFPAT11_SET_DL_DST(openflow)->dl_addr,
+ sf->value.mac, ETH_ADDR_LEN);
+ break;
+
+ case MFF_MPLS_LABEL:
+ ofputil_put_OFPAT11_SET_MPLS_LABEL(openflow)->mpls_label =
+ sf->value.be32;
+ break;
+
+ case MFF_MPLS_TC:
+ ofputil_put_OFPAT11_SET_MPLS_TC(openflow)->mpls_tc = sf->value.u8;
+ break;
+
+ case MFF_IPV4_SRC:
+ ofputil_put_OFPAT11_SET_NW_SRC(openflow)->nw_addr = sf->value.be32;
+ break;
+
+ case MFF_IPV4_DST:
+ ofputil_put_OFPAT11_SET_NW_DST(openflow)->nw_addr = sf->value.be32;
+ break;
+
+ case MFF_IP_DSCP:
+ ofputil_put_OFPAT11_SET_NW_TOS(openflow)->nw_tos = sf->value.u8;
+ break;
+
+ case MFF_IP_DSCP_SHIFTED:
+ ofputil_put_OFPAT11_SET_NW_TOS(openflow)->nw_tos = sf->value.u8 << 2;
+ break;
+
+ case MFF_IP_ECN:
+ ofputil_put_OFPAT11_SET_NW_ECN(openflow)->nw_ecn = sf->value.u8;
+ break;
+
+ case MFF_IP_TTL:
+ ofputil_put_OFPAT11_SET_NW_TTL(openflow)->nw_ttl = sf->value.u8;
+ break;
+
+ case MFF_TCP_SRC:
+ case MFF_UDP_SRC:
+ case MFF_SCTP_SRC:
+ ofputil_put_OFPAT11_SET_TP_SRC(openflow)->tp_port = sf->value.be16;
+ break;
+
+ case MFF_TCP_DST:
+ case MFF_UDP_DST:
+ case MFF_SCTP_DST:
+ ofputil_put_OFPAT11_SET_TP_DST(openflow)->tp_port = sf->value.be16;
+ break;
+
+ default:
+ set_field_to_nxast(sf, openflow);
+ break;
+ }
+}
+
+/* Convert 'sf' to standard OpenFlow 1.0 actions, if we can, falling back
+ * to Nicira extensions if we must.
+ *
+ * We check only meta-flow types that can appear within set field actions and
+ * that have a mapping to compatible action types. These struct mf_field
+ * definitions have a defined OXM or NXM header value and specify the field as
+ * writable. */
+static void
+set_field_to_openflow10(const struct ofpact_set_field *sf,
+ struct ofpbuf *openflow)
+{
+ switch ((int) sf->field->id) {
+ case MFF_VLAN_TCI:
+ /* NXM_OF_VLAN_TCI to OpenFlow 1.0 mapping:
+ *
+ * If CFI=1, Add or modify VLAN VID & PCP.
+ * If CFI=0, strip VLAN header, if any.
+ */
+ if (sf->value.be16 & htons(VLAN_CFI)) {
+ ofputil_put_OFPAT10_SET_VLAN_VID(openflow)->vlan_vid
+ = sf->value.be16 & htons(VLAN_VID_MASK);
+ ofputil_put_OFPAT10_SET_VLAN_PCP(openflow)->vlan_pcp
+ = vlan_tci_to_pcp(sf->value.be16);
+ } else {
+ ofputil_put_OFPAT10_STRIP_VLAN(openflow);
+ }
+ break;
+
+ case MFF_VLAN_VID:
+ /* OXM VLAN_VID to OpenFlow 1.0.
+ * Set field on OXM_OF_VLAN_VID onlyapplies to an existing vlan
+ * tag. Clear the OFPVID_PRESENT bit.
+ */
+ ofputil_put_OFPAT10_SET_VLAN_VID(openflow)->vlan_vid
+ = sf->value.be16 & htons(VLAN_VID_MASK);
+ break;
+
+ case MFF_VLAN_PCP:
+ /* OXM VLAN_PCP to OpenFlow 1.0.
+ * OXM_OF_VLAN_PCP only applies to existing vlan tag. */
+ ofputil_put_OFPAT10_SET_VLAN_PCP(openflow)->vlan_pcp = sf->value.u8;
+ break;
+
+ case MFF_ETH_SRC:
+ memcpy(ofputil_put_OFPAT10_SET_DL_SRC(openflow)->dl_addr,
+ sf->value.mac, ETH_ADDR_LEN);
+ break;
+
+ case MFF_ETH_DST:
+ memcpy(ofputil_put_OFPAT10_SET_DL_DST(openflow)->dl_addr,
+ sf->value.mac, ETH_ADDR_LEN);
+ break;
+
+ case MFF_IPV4_SRC:
+ ofputil_put_OFPAT10_SET_NW_SRC(openflow)->nw_addr = sf->value.be32;
+ break;
+
+ case MFF_IPV4_DST:
+ ofputil_put_OFPAT10_SET_NW_DST(openflow)->nw_addr = sf->value.be32;
+ break;
+
+ case MFF_IP_DSCP:
+ ofputil_put_OFPAT10_SET_NW_TOS(openflow)->nw_tos = sf->value.u8;
+ break;
+
+ case MFF_IP_DSCP_SHIFTED:
+ ofputil_put_OFPAT10_SET_NW_TOS(openflow)->nw_tos = sf->value.u8 << 2;
+ break;
+
+ case MFF_TCP_SRC:
+ case MFF_UDP_SRC:
+ ofputil_put_OFPAT10_SET_TP_SRC(openflow)->tp_port = sf->value.be16;
+ break;
+
+ case MFF_TCP_DST:
+ case MFF_UDP_DST:
+ ofputil_put_OFPAT10_SET_TP_DST(openflow)->tp_port = sf->value.be16;
+ break;
+
+ default:
+ set_field_to_nxast(sf, openflow);
+ break;
+ }
+}
+
+static void
+set_field_to_openflow(const struct ofpact_set_field *sf,
+ struct ofpbuf *openflow)
+{
+ struct ofp_header *oh = (struct ofp_header *)openflow->frame;
+
+ if (oh->version >= OFP12_VERSION) {
+ set_field_to_openflow12(sf, openflow);
+ } else if (oh->version == OFP11_VERSION) {
+ set_field_to_openflow11(sf, openflow);
+ } else if (oh->version == OFP10_VERSION) {
+ set_field_to_openflow10(sf, openflow);
+ } else {
+ OVS_NOT_REACHED();
+ }
+}
+
static enum ofperr
output_from_openflow11(const struct ofp11_action_output *oao,
struct ofpbuf *out)
return error;
}
- return ofputil_check_output_port(output->port, OFPP_MAX);
+ return ofpact_check_output_port(output->port, OFPP_MAX);
}
static enum ofperr
-ofpact_from_openflow11(const union ofp_action *a, struct ofpbuf *out)
+ofpact_from_openflow11(const union ofp_action *a, enum ofp_version version,
+ struct ofpbuf *out)
{
enum ofputil_action_code code;
enum ofperr error;
+ struct ofpact_vlan_vid *vlan_vid;
+ struct ofpact_vlan_pcp *vlan_pcp;
error = decode_openflow11_action(a, &code);
if (error) {
return error;
}
+ if (version >= OFP12_VERSION) {
+ switch ((int)code) {
+ case OFPUTIL_OFPAT11_SET_VLAN_VID:
+ case OFPUTIL_OFPAT11_SET_VLAN_PCP:
+ case OFPUTIL_OFPAT11_SET_DL_SRC:
+ case OFPUTIL_OFPAT11_SET_DL_DST:
+ case OFPUTIL_OFPAT11_SET_NW_SRC:
+ case OFPUTIL_OFPAT11_SET_NW_DST:
+ case OFPUTIL_OFPAT11_SET_NW_TOS:
+ case OFPUTIL_OFPAT11_SET_NW_ECN:
+ case OFPUTIL_OFPAT11_SET_TP_SRC:
+ case OFPUTIL_OFPAT11_SET_TP_DST:
+ VLOG_WARN_RL(&rl, "Deprecated action %s received over %s",
+ ofputil_action_name_from_code(code),
+ ofputil_version_to_string(version));
+ }
+ }
+
switch (code) {
case OFPUTIL_ACTION_INVALID:
#define OFPAT10_ACTION(ENUM, STRUCT, NAME) case OFPUTIL_##ENUM:
+#define OFPAT13_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) case OFPUTIL_##ENUM:
#include "ofp-util.def"
- NOT_REACHED();
+ OVS_NOT_REACHED();
case OFPUTIL_OFPAT11_OUTPUT:
- return output_from_openflow11((const struct ofp11_action_output *) a,
- out);
+ return output_from_openflow11(&a->ofp11_output, out);
case OFPUTIL_OFPAT11_SET_VLAN_VID:
if (a->vlan_vid.vlan_vid & ~htons(0xfff)) {
return OFPERR_OFPBAC_BAD_ARGUMENT;
}
- ofpact_put_SET_VLAN_VID(out)->vlan_vid = ntohs(a->vlan_vid.vlan_vid);
+ vlan_vid = ofpact_put_SET_VLAN_VID(out);
+ vlan_vid->vlan_vid = ntohs(a->vlan_vid.vlan_vid);
+ vlan_vid->push_vlan_if_needed = false;
+ vlan_vid->ofpact.compat = code;
break;
case OFPUTIL_OFPAT11_SET_VLAN_PCP:
if (a->vlan_pcp.vlan_pcp & ~7) {
return OFPERR_OFPBAC_BAD_ARGUMENT;
}
- ofpact_put_SET_VLAN_PCP(out)->vlan_pcp = a->vlan_pcp.vlan_pcp;
+ vlan_pcp = ofpact_put_SET_VLAN_PCP(out);
+ vlan_pcp->vlan_pcp = a->vlan_pcp.vlan_pcp;
+ vlan_pcp->push_vlan_if_needed = false;
+ vlan_pcp->ofpact.compat = code;
break;
case OFPUTIL_OFPAT11_PUSH_VLAN:
- if (((const struct ofp11_action_push *)a)->ethertype !=
- htons(ETH_TYPE_VLAN_8021Q)) {
+ if (a->push.ethertype != htons(ETH_TYPE_VLAN_8021Q)) {
/* XXX 802.1AD(QinQ) isn't supported at the moment */
return OFPERR_OFPBAC_BAD_ARGUMENT;
}
break;
case OFPUTIL_OFPAT11_POP_VLAN:
- ofpact_put_STRIP_VLAN(out);
+ ofpact_put_STRIP_VLAN(out)->ofpact.compat = code;
break;
case OFPUTIL_OFPAT11_SET_QUEUE:
ofpact_put_SET_QUEUE(out)->queue_id =
- ntohl(((const struct ofp11_action_set_queue *)a)->queue_id);
+ ntohl(a->ofp11_set_queue.queue_id);
break;
case OFPUTIL_OFPAT11_SET_DL_SRC:
- memcpy(ofpact_put_SET_ETH_SRC(out)->mac,
- ((const struct ofp_action_dl_addr *) a)->dl_addr, ETH_ADDR_LEN);
+ memcpy(ofpact_put_SET_ETH_SRC(out)->mac, a->dl_addr.dl_addr,
+ ETH_ADDR_LEN);
break;
case OFPUTIL_OFPAT11_SET_DL_DST:
- memcpy(ofpact_put_SET_ETH_DST(out)->mac,
- ((const struct ofp_action_dl_addr *) a)->dl_addr, ETH_ADDR_LEN);
+ memcpy(ofpact_put_SET_ETH_DST(out)->mac, a->dl_addr.dl_addr,
+ ETH_ADDR_LEN);
break;
case OFPUTIL_OFPAT11_DEC_NW_TTL:
if (a->nw_tos.nw_tos & ~IP_DSCP_MASK) {
return OFPERR_OFPBAC_BAD_ARGUMENT;
}
- ofpact_put_SET_IPV4_DSCP(out)->dscp = a->nw_tos.nw_tos;
+ ofpact_put_SET_IP_DSCP(out)->dscp = a->nw_tos.nw_tos;
+ break;
+
+ case OFPUTIL_OFPAT11_SET_NW_ECN:
+ if (a->nw_ecn.nw_ecn & ~IP_ECN_MASK) {
+ return OFPERR_OFPBAC_BAD_ARGUMENT;
+ }
+ ofpact_put_SET_IP_ECN(out)->ecn = a->nw_ecn.nw_ecn;
+ break;
+
+ case OFPUTIL_OFPAT11_SET_NW_TTL:
+ ofpact_put_SET_IP_TTL(out)->ttl = a->nw_ttl.nw_ttl;
break;
case OFPUTIL_OFPAT11_SET_TP_SRC:
break;
case OFPUTIL_OFPAT12_SET_FIELD:
- return nxm_reg_load_from_openflow12_set_field(
- (const struct ofp12_action_set_field *)a, out);
+ return set_field_from_openflow(&a->set_field, out);
+
+ case OFPUTIL_OFPAT11_SET_MPLS_LABEL:
+ ofpact_put_SET_MPLS_LABEL(out)->label = a->ofp11_mpls_label.mpls_label;
+ break;
+
+ case OFPUTIL_OFPAT11_SET_MPLS_TC:
+ ofpact_put_SET_MPLS_TC(out)->tc = a->ofp11_mpls_tc.mpls_tc;
+ break;
+
+ case OFPUTIL_OFPAT11_SET_MPLS_TTL:
+ ofpact_put_SET_MPLS_TTL(out)->ttl = a->ofp11_mpls_ttl.mpls_ttl;
+ break;
+
+ case OFPUTIL_OFPAT11_DEC_MPLS_TTL:
+ ofpact_put_DEC_MPLS_TTL(out);
+ break;
+
+ case OFPUTIL_OFPAT11_PUSH_MPLS:
+ error = push_mpls_from_openflow(a->push.ethertype, out);
+ break;
+
+ case OFPUTIL_OFPAT11_POP_MPLS:
+ if (eth_type_mpls(a->ofp11_pop_mpls.ethertype)) {
+ return OFPERR_OFPBAC_BAD_ARGUMENT;
+ }
+ ofpact_put_POP_MPLS(out)->ethertype = a->ofp11_pop_mpls.ethertype;
+ break;
+
+ case OFPUTIL_OFPAT11_GROUP:
+ ofpact_put_GROUP(out)->group_id = ntohl(a->group.group_id);
+ break;
+
+#define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) case OFPUTIL_##ENUM:
+#include "ofp-util.def"
+ return ofpact_from_nxast(a, code, out);
+ }
+
+ return error;
+}
+
+/* True if an action sets the value of a field
+ * in a way that is compatibile with the action set.
+ * False otherwise. */
+static bool
+ofpact_is_set_action(const struct ofpact *a)
+{
+ switch (a->type) {
+ case OFPACT_SET_FIELD:
+ case OFPACT_REG_LOAD:
+ case OFPACT_SET_ETH_DST:
+ case OFPACT_SET_ETH_SRC:
+ case OFPACT_SET_IP_DSCP:
+ case OFPACT_SET_IP_ECN:
+ case OFPACT_SET_IP_TTL:
+ case OFPACT_SET_IPV4_DST:
+ case OFPACT_SET_IPV4_SRC:
+ case OFPACT_SET_L4_DST_PORT:
+ case OFPACT_SET_L4_SRC_PORT:
+ case OFPACT_SET_MPLS_LABEL:
+ case OFPACT_SET_MPLS_TC:
+ case OFPACT_SET_MPLS_TTL:
+ case OFPACT_SET_QUEUE:
+ case OFPACT_SET_TUNNEL:
+ case OFPACT_SET_VLAN_PCP:
+ case OFPACT_SET_VLAN_VID:
+ return true;
+ case OFPACT_BUNDLE:
+ case OFPACT_CLEAR_ACTIONS:
+ case OFPACT_CONTROLLER:
+ case OFPACT_DEC_MPLS_TTL:
+ case OFPACT_DEC_TTL:
+ case OFPACT_ENQUEUE:
+ case OFPACT_EXIT:
+ case OFPACT_FIN_TIMEOUT:
+ case OFPACT_GOTO_TABLE:
+ case OFPACT_GROUP:
+ case OFPACT_LEARN:
+ case OFPACT_METER:
+ case OFPACT_MULTIPATH:
+ case OFPACT_NOTE:
+ case OFPACT_OUTPUT:
+ case OFPACT_OUTPUT_REG:
+ case OFPACT_POP_MPLS:
+ case OFPACT_POP_QUEUE:
+ case OFPACT_PUSH_MPLS:
+ case OFPACT_PUSH_VLAN:
+ case OFPACT_REG_MOVE:
+ case OFPACT_RESUBMIT:
+ case OFPACT_SAMPLE:
+ case OFPACT_STACK_POP:
+ case OFPACT_STACK_PUSH:
+ case OFPACT_STRIP_VLAN:
+ case OFPACT_WRITE_ACTIONS:
+ case OFPACT_WRITE_METADATA:
+ return false;
+ default:
+ OVS_NOT_REACHED();
+ }
+}
+
+/* True if an action is allowed in the action set.
+ * False otherwise. */
+static bool
+ofpact_is_allowed_in_actions_set(const struct ofpact *a)
+{
+ switch (a->type) {
+ case OFPACT_DEC_MPLS_TTL:
+ case OFPACT_DEC_TTL:
+ case OFPACT_GROUP:
+ case OFPACT_OUTPUT:
+ case OFPACT_POP_MPLS:
+ case OFPACT_PUSH_MPLS:
+ case OFPACT_PUSH_VLAN:
+ case OFPACT_REG_LOAD:
+ case OFPACT_SET_FIELD:
+ case OFPACT_SET_ETH_DST:
+ case OFPACT_SET_ETH_SRC:
+ case OFPACT_SET_IP_DSCP:
+ case OFPACT_SET_IP_ECN:
+ case OFPACT_SET_IP_TTL:
+ case OFPACT_SET_IPV4_DST:
+ case OFPACT_SET_IPV4_SRC:
+ case OFPACT_SET_L4_DST_PORT:
+ case OFPACT_SET_L4_SRC_PORT:
+ case OFPACT_SET_MPLS_LABEL:
+ case OFPACT_SET_MPLS_TC:
+ case OFPACT_SET_MPLS_TTL:
+ case OFPACT_SET_QUEUE:
+ case OFPACT_SET_TUNNEL:
+ case OFPACT_SET_VLAN_PCP:
+ case OFPACT_SET_VLAN_VID:
+ case OFPACT_STRIP_VLAN:
+ return true;
+
+ /* In general these actions are excluded because they are not part of
+ * the OpenFlow specification nor map to actions that are defined in
+ * the specification. Thus the order in which they should be applied
+ * in the action set is undefined. */
+ case OFPACT_BUNDLE:
+ case OFPACT_CONTROLLER:
+ case OFPACT_ENQUEUE:
+ case OFPACT_EXIT:
+ case OFPACT_FIN_TIMEOUT:
+ case OFPACT_LEARN:
+ case OFPACT_MULTIPATH:
+ case OFPACT_NOTE:
+ case OFPACT_OUTPUT_REG:
+ case OFPACT_POP_QUEUE:
+ case OFPACT_REG_MOVE:
+ case OFPACT_RESUBMIT:
+ case OFPACT_SAMPLE:
+ case OFPACT_STACK_POP:
+ case OFPACT_STACK_PUSH:
+
+ /* The action set may only include actions and thus
+ * may not include any instructions */
+ case OFPACT_CLEAR_ACTIONS:
+ case OFPACT_GOTO_TABLE:
+ case OFPACT_METER:
+ case OFPACT_WRITE_ACTIONS:
+ case OFPACT_WRITE_METADATA:
+ return false;
+ default:
+ OVS_NOT_REACHED();
+ }
+}
+
+/* Append ofpact 'a' onto the tail of 'out' */
+static void
+ofpact_copy(struct ofpbuf *out, const struct ofpact *a)
+{
+ ofpbuf_put(out, a, OFPACT_ALIGN(a->len));
+}
+
+/* Copies the last ofpact whose type is 'filter' from 'in' to 'out'. */
+static bool
+ofpacts_copy_last(struct ofpbuf *out, const struct ofpbuf *in,
+ enum ofpact_type filter)
+{
+ const struct ofpact *target;
+ const struct ofpact *a;
+
+ target = NULL;
+ OFPACT_FOR_EACH (a, ofpbuf_data(in), ofpbuf_size(in)) {
+ if (a->type == filter) {
+ target = a;
+ }
+ }
+ if (target) {
+ ofpact_copy(out, target);
+ }
+ return target != NULL;
+}
+
+/* Append all ofpacts, for which 'filter' returns true, from 'in' to 'out'.
+ * The order of appended ofpacts is preserved between 'in' and 'out' */
+static void
+ofpacts_copy_all(struct ofpbuf *out, const struct ofpbuf *in,
+ bool (*filter)(const struct ofpact *))
+{
+ const struct ofpact *a;
+
+ OFPACT_FOR_EACH (a, ofpbuf_data(in), ofpbuf_size(in)) {
+ if (filter(a)) {
+ ofpact_copy(out, a);
+ }
+ }
+}
+
+/* Reads 'action_set', which contains ofpacts accumulated by
+ * OFPACT_WRITE_ACTIONS instructions, and writes equivalent actions to be
+ * executed directly into 'action_list'. (These names correspond to the
+ * "Action Set" and "Action List" terms used in OpenFlow 1.1+.)
+ *
+ * In general this involves appending the last instance of each action that is
+ * adimissible in the action set in the order described in the OpenFlow
+ * specification.
+ *
+ * Exceptions:
+ * + output action is only appended if no group action was present in 'in'.
+ * + As a simplification all set actions are copied in the order the are
+ * provided in 'in' as many set actions applied to a field has the same
+ * affect as only applying the last action that sets a field and
+ * duplicates are removed by do_xlate_actions().
+ * This has an unwanted side-effect of compsoting multiple
+ * LOAD_REG actions that touch different regions of the same field. */
+void
+ofpacts_execute_action_set(struct ofpbuf *action_list,
+ const struct ofpbuf *action_set)
+{
+ /* The OpenFlow spec "Action Set" section specifies this order. */
+ ofpacts_copy_last(action_list, action_set, OFPACT_STRIP_VLAN);
+ ofpacts_copy_last(action_list, action_set, OFPACT_POP_MPLS);
+ ofpacts_copy_last(action_list, action_set, OFPACT_PUSH_MPLS);
+ ofpacts_copy_last(action_list, action_set, OFPACT_PUSH_VLAN);
+ ofpacts_copy_last(action_list, action_set, OFPACT_DEC_TTL);
+ ofpacts_copy_last(action_list, action_set, OFPACT_DEC_MPLS_TTL);
+ ofpacts_copy_all(action_list, action_set, ofpact_is_set_action);
+ ofpacts_copy_last(action_list, action_set, OFPACT_SET_QUEUE);
- case OFPUTIL_OFPAT11_SET_MPLS_TTL: {
- struct ofp11_action_mpls_ttl *oamt = (struct ofp11_action_mpls_ttl *)a;
- ofpact_put_SET_MPLS_TTL(out)->ttl = oamt->mpls_ttl;
- break;
+ /* If both OFPACT_GROUP and OFPACT_OUTPUT are present, OpenFlow says that
+ * we should execute only OFPACT_GROUP.
+ *
+ * If neither OFPACT_GROUP nor OFPACT_OUTPUT is present, then we can drop
+ * all the actions because there's no point in modifying a packet that will
+ * not be sent anywhere. */
+ if (!ofpacts_copy_last(action_list, action_set, OFPACT_GROUP) &&
+ !ofpacts_copy_last(action_list, action_set, OFPACT_OUTPUT)) {
+ ofpbuf_clear(action_list);
}
+}
- case OFPUTIL_OFPAT11_DEC_MPLS_TTL:
- ofpact_put_DEC_MPLS_TTL(out);
- break;
- case OFPUTIL_OFPAT11_PUSH_MPLS: {
- struct ofp11_action_push *oap = (struct ofp11_action_push *)a;
- if (!eth_type_mpls(oap->ethertype)) {
- return OFPERR_OFPBAC_BAD_ARGUMENT;
- }
- ofpact_put_PUSH_MPLS(out)->ethertype = oap->ethertype;
- break;
- }
+static enum ofperr
+ofpacts_from_openflow11_for_action_set(const union ofp_action *in,
+ size_t n_in, enum ofp_version version,
+ struct ofpbuf *out)
+{
+ enum ofperr error;
+ struct ofpact *a;
+ size_t start = ofpbuf_size(out);
- case OFPUTIL_OFPAT11_POP_MPLS: {
- struct ofp11_action_pop_mpls *oapm = (struct ofp11_action_pop_mpls *)a;
- if (eth_type_mpls(oapm->ethertype)) {
- return OFPERR_OFPBAC_BAD_ARGUMENT;
- }
- ofpact_put_POP_MPLS(out)->ethertype = oapm->ethertype;
- break;
- }
+ error = ofpacts_from_openflow(in, n_in, version, out);
- case OFPUTIL_OFPAT11_GROUP: {
- struct ofp11_action_group *oag = (struct ofp11_action_group *)a;
- ofpact_put_GROUP(out)->group_id = ntohl(oag->group_id);
- break;
+ if (error) {
+ return error;
}
-#define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) case OFPUTIL_##ENUM:
-#include "ofp-util.def"
- return ofpact_from_nxast(a, code, out);
+ OFPACT_FOR_EACH (a, ofpact_end(ofpbuf_data(out), start), ofpbuf_size(out) - start) {
+ if (!ofpact_is_allowed_in_actions_set(a)) {
+ VLOG_WARN_RL(&rl, "disallowed action in action set");
+ return OFPERR_OFPBAC_BAD_TYPE;
+ }
}
- return error;
+ return 0;
}
-static enum ofperr
-ofpacts_from_openflow11(const union ofp_action *in, size_t n_in,
- struct ofpbuf *out)
-{
- return ofpacts_from_openflow(in, n_in, out, ofpact_from_openflow11);
-}
\f
/* OpenFlow 1.1 instructions. */
#define DEFINE_INST(ENUM, STRUCT, EXTENSIBLE, NAME) \
- static inline const struct STRUCT * \
+ static inline const struct STRUCT * OVS_UNUSED \
instruction_get_##ENUM(const struct ofp11_instruction *inst)\
{ \
ovs_assert(inst->type == htons(ENUM)); \
return ALIGNED_CAST(struct STRUCT *, inst); \
} \
\
- static inline void \
+ static inline void OVS_UNUSED \
instruction_init_##ENUM(struct STRUCT *s) \
{ \
memset(s, 0, sizeof *s); \
s->len = htons(sizeof *s); \
} \
\
- static inline struct STRUCT * \
+ static inline struct STRUCT * OVS_UNUSED \
instruction_put_##ENUM(struct ofpbuf *buf) \
{ \
struct STRUCT *s = ofpbuf_put_uninit(buf, sizeof *s); \
return OVSINST_OFPIT13_METER;
case OFPACT_CLEAR_ACTIONS:
return OVSINST_OFPIT11_CLEAR_ACTIONS;
+ case OFPACT_WRITE_ACTIONS:
+ return OVSINST_OFPIT11_WRITE_ACTIONS;
case OFPACT_WRITE_METADATA:
return OVSINST_OFPIT11_WRITE_METADATA;
case OFPACT_GOTO_TABLE:
case OFPACT_SET_ETH_DST:
case OFPACT_SET_IPV4_SRC:
case OFPACT_SET_IPV4_DST:
- case OFPACT_SET_IPV4_DSCP:
+ case OFPACT_SET_IP_DSCP:
+ case OFPACT_SET_IP_ECN:
+ case OFPACT_SET_IP_TTL:
case OFPACT_SET_L4_SRC_PORT:
case OFPACT_SET_L4_DST_PORT:
case OFPACT_REG_MOVE:
case OFPACT_REG_LOAD:
+ case OFPACT_SET_FIELD:
case OFPACT_STACK_PUSH:
case OFPACT_STACK_POP:
case OFPACT_DEC_TTL:
+ case OFPACT_SET_MPLS_LABEL:
+ case OFPACT_SET_MPLS_TC:
case OFPACT_SET_MPLS_TTL:
case OFPACT_DEC_MPLS_TTL:
case OFPACT_PUSH_MPLS:
}
}
+enum ofperr
+ovs_instruction_type_from_inst_type(enum ovs_instruction_type *instruction_type,
+ const uint16_t inst_type)
+{
+ switch (inst_type) {
+
+#define DEFINE_INST(ENUM, STRUCT, EXTENSIBLE, NAME) \
+ case ENUM: \
+ *instruction_type = OVSINST_##ENUM; \
+ return 0;
+OVS_INSTRUCTIONS
+#undef DEFINE_INST
+
+ default:
+ return OFPERR_OFPBIC_UNKNOWN_INST;
+ }
+}
+
static inline struct ofp11_instruction *
instruction_next(const struct ofp11_instruction *inst)
{
}
if (left) {
- VLOG_WARN_RL(&rl, "bad instruction format at offset %zu",
+ VLOG_WARN_RL(&rl, "bad instruction format at offset %"PRIuSIZE,
(n_insts - left) * sizeof *inst);
return OFPERR_OFPBIC_BAD_LEN;
}
static void
get_actions_from_instruction(const struct ofp11_instruction *inst,
const union ofp_action **actions,
- size_t *n_actions)
+ size_t *max_actions)
{
*actions = ALIGNED_CAST(const union ofp_action *, inst + 1);
- *n_actions = (ntohs(inst->len) - sizeof *inst) / OFP11_INSTRUCTION_ALIGN;
-}
-
-/* Attempts to convert 'actions_len' bytes of OpenFlow 1.1 actions from the
- * front of 'openflow' into ofpacts. On success, replaces any existing content
- * in 'ofpacts' by the converted ofpacts; on failure, clears 'ofpacts'.
- * Returns 0 if successful, otherwise an OpenFlow error.
- *
- * In most places in OpenFlow 1.1 and 1.2, actions appear encapsulated in
- * instructions, so you should call ofpacts_pull_openflow11_instructions()
- * instead of this function.
- *
- * The parsed actions are valid generically, but they may not be valid in a
- * specific context. For example, port numbers up to OFPP_MAX are valid
- * generically, but specific datapaths may only support port numbers in a
- * smaller range. Use ofpacts_check() to additional check whether actions are
- * valid in a specific context. */
-enum ofperr
-ofpacts_pull_openflow11_actions(struct ofpbuf *openflow,
- unsigned int actions_len,
- struct ofpbuf *ofpacts)
-{
- return ofpacts_pull_actions(openflow, actions_len, ofpacts,
- ofpacts_from_openflow11);
+ *max_actions = (ntohs(inst->len) - sizeof *inst) / OFP11_INSTRUCTION_ALIGN;
}
enum ofperr
-ofpacts_pull_openflow11_instructions(struct ofpbuf *openflow,
- unsigned int instructions_len,
- struct ofpbuf *ofpacts)
+ofpacts_pull_openflow_instructions(struct ofpbuf *openflow,
+ unsigned int instructions_len,
+ enum ofp_version version,
+ struct ofpbuf *ofpacts)
{
- static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
const struct ofp11_instruction *instructions;
const struct ofp11_instruction *insts[N_OVS_INSTRUCTIONS];
enum ofperr error;
instructions = ofpbuf_try_pull(openflow, instructions_len);
if (instructions == NULL) {
VLOG_WARN_RL(&rl, "OpenFlow message instructions length %u exceeds "
- "remaining message length (%zu)",
- instructions_len, openflow->size);
+ "remaining message length (%"PRIu32")",
+ instructions_len, ofpbuf_size(openflow));
error = OFPERR_OFPBIC_BAD_LEN;
goto exit;
}
}
if (insts[OVSINST_OFPIT11_APPLY_ACTIONS]) {
const union ofp_action *actions;
- size_t n_actions;
+ size_t max_actions;
get_actions_from_instruction(insts[OVSINST_OFPIT11_APPLY_ACTIONS],
- &actions, &n_actions);
- error = ofpacts_from_openflow11(actions, n_actions, ofpacts);
+ &actions, &max_actions);
+ error = ofpacts_from_openflow(actions, max_actions, version, ofpacts);
if (error) {
goto exit;
}
insts[OVSINST_OFPIT11_CLEAR_ACTIONS]);
ofpact_put_CLEAR_ACTIONS(ofpacts);
}
- /* XXX Write-Actions */
+ if (insts[OVSINST_OFPIT11_WRITE_ACTIONS]) {
+ struct ofpact_nest *on;
+ const union ofp_action *actions;
+ size_t max_actions;
+ size_t start;
+
+ ofpact_pad(ofpacts);
+ start = ofpbuf_size(ofpacts);
+ on = ofpact_put(ofpacts, OFPACT_WRITE_ACTIONS,
+ offsetof(struct ofpact_nest, actions));
+ get_actions_from_instruction(insts[OVSINST_OFPIT11_WRITE_ACTIONS],
+ &actions, &max_actions);
+ error = ofpacts_from_openflow11_for_action_set(actions, max_actions,
+ version, ofpacts);
+ if (error) {
+ goto exit;
+ }
+ on = ofpbuf_at_assert(ofpacts, start, sizeof *on);
+ on->ofpact.len = ofpbuf_size(ofpacts) - start;
+ }
if (insts[OVSINST_OFPIT11_WRITE_METADATA]) {
const struct ofp11_instruction_write_metadata *oiwm;
struct ofpact_metadata *om;
ogt->table_id = oigt->table_id;
}
- if (insts[OVSINST_OFPIT11_WRITE_ACTIONS]) {
- error = OFPERR_OFPBIC_UNSUP_INST;
- goto exit;
- }
-
- error = ofpacts_verify(ofpacts->data, ofpacts->size);
+ error = ofpacts_verify(ofpbuf_data(ofpacts), ofpbuf_size(ofpacts));
exit:
if (error) {
ofpbuf_clear(ofpacts);
return error;
}
\f
-/* May modify flow->dl_type, caller must restore it. */
+/* Checks that 'port' is a valid output port for OFPACT_OUTPUT, given that the
+ * switch will never have more than 'max_ports' ports. Returns 0 if 'port' is
+ * valid, otherwise an OpenFlow error code. */
+enum ofperr
+ofpact_check_output_port(ofp_port_t port, ofp_port_t max_ports)
+{
+ switch (port) {
+ case OFPP_IN_PORT:
+ case OFPP_TABLE:
+ case OFPP_NORMAL:
+ case OFPP_FLOOD:
+ case OFPP_ALL:
+ case OFPP_CONTROLLER:
+ case OFPP_NONE:
+ case OFPP_LOCAL:
+ return 0;
+
+ default:
+ if (ofp_to_u16(port) < ofp_to_u16(max_ports)) {
+ return 0;
+ }
+ return OFPERR_OFPBAC_BAD_OUT_PORT;
+ }
+}
+
+/* Removes the protocols that require consistency between match and actions
+ * (that's everything but OpenFlow 1.0) from '*usable_protocols'.
+ *
+ * (An example of an inconsistency between match and actions is a flow that
+ * does not match on an MPLS Ethertype but has an action that pops an MPLS
+ * label.) */
+static void
+inconsistent_match(enum ofputil_protocol *usable_protocols)
+{
+ *usable_protocols &= OFPUTIL_P_OF10_ANY;
+}
+
+/* May modify flow->dl_type, flow->nw_proto and flow->vlan_tci,
+ * caller must restore them.
+ *
+ * Modifies some actions, filling in fields that could not be properly set
+ * without context. */
static enum ofperr
-ofpact_check__(const struct ofpact *a, struct flow *flow, ofp_port_t max_ports,
- uint8_t table_id)
+ofpact_check__(enum ofputil_protocol *usable_protocols, struct ofpact *a,
+ struct flow *flow, ofp_port_t max_ports,
+ uint8_t table_id, uint8_t n_tables)
{
const struct ofpact_enqueue *enqueue;
+ const struct mf_field *mf;
switch (a->type) {
case OFPACT_OUTPUT:
- return ofputil_check_output_port(ofpact_get_OUTPUT(a)->port,
- max_ports);
+ return ofpact_check_output_port(ofpact_get_OUTPUT(a)->port,
+ max_ports);
case OFPACT_CONTROLLER:
return 0;
return bundle_check(ofpact_get_BUNDLE(a), max_ports, flow);
case OFPACT_SET_VLAN_VID:
+ /* Remember if we saw a vlan tag in the flow to aid translating to
+ * OpenFlow 1.1+ if need be. */
+ ofpact_get_SET_VLAN_VID(a)->flow_has_vlan =
+ (flow->vlan_tci & htons(VLAN_CFI)) == htons(VLAN_CFI);
+ if (!(flow->vlan_tci & htons(VLAN_CFI)) &&
+ !ofpact_get_SET_VLAN_VID(a)->push_vlan_if_needed) {
+ inconsistent_match(usable_protocols);
+ }
+ /* Temporary mark that we have a vlan tag. */
+ flow->vlan_tci |= htons(VLAN_CFI);
+ return 0;
+
case OFPACT_SET_VLAN_PCP:
+ /* Remember if we saw a vlan tag in the flow to aid translating to
+ * OpenFlow 1.1+ if need be. */
+ ofpact_get_SET_VLAN_PCP(a)->flow_has_vlan =
+ (flow->vlan_tci & htons(VLAN_CFI)) == htons(VLAN_CFI);
+ if (!(flow->vlan_tci & htons(VLAN_CFI)) &&
+ !ofpact_get_SET_VLAN_PCP(a)->push_vlan_if_needed) {
+ inconsistent_match(usable_protocols);
+ }
+ /* Temporary mark that we have a vlan tag. */
+ flow->vlan_tci |= htons(VLAN_CFI);
+ return 0;
+
case OFPACT_STRIP_VLAN:
+ if (!(flow->vlan_tci & htons(VLAN_CFI))) {
+ inconsistent_match(usable_protocols);
+ }
+ /* Temporary mark that we have no vlan tag. */
+ flow->vlan_tci = htons(0);
+ return 0;
+
case OFPACT_PUSH_VLAN:
+ if (flow->vlan_tci & htons(VLAN_CFI)) {
+ /* Multiple VLAN headers not supported. */
+ return OFPERR_OFPBAC_BAD_TAG;
+ }
+ /* Temporary mark that we have a vlan tag. */
+ flow->vlan_tci |= htons(VLAN_CFI);
+ return 0;
+
case OFPACT_SET_ETH_SRC:
case OFPACT_SET_ETH_DST:
+ return 0;
+
case OFPACT_SET_IPV4_SRC:
case OFPACT_SET_IPV4_DST:
- case OFPACT_SET_IPV4_DSCP:
+ if (flow->dl_type != htons(ETH_TYPE_IP)) {
+ inconsistent_match(usable_protocols);
+ }
+ return 0;
+
+ case OFPACT_SET_IP_DSCP:
+ case OFPACT_SET_IP_ECN:
+ case OFPACT_SET_IP_TTL:
+ case OFPACT_DEC_TTL:
+ if (!is_ip_any(flow)) {
+ inconsistent_match(usable_protocols);
+ }
+ return 0;
+
case OFPACT_SET_L4_SRC_PORT:
+ if (!is_ip_any(flow) ||
+ (flow->nw_proto != IPPROTO_TCP && flow->nw_proto != IPPROTO_UDP
+ && flow->nw_proto != IPPROTO_SCTP)) {
+ inconsistent_match(usable_protocols);
+ }
+ /* Note on which transport protocol the port numbers are set.
+ * This allows this set action to be converted to an OF1.2 set field
+ * action. */
+ ofpact_get_SET_L4_SRC_PORT(a)->flow_ip_proto = flow->nw_proto;
+ return 0;
+
case OFPACT_SET_L4_DST_PORT:
+ if (!is_ip_any(flow) ||
+ (flow->nw_proto != IPPROTO_TCP && flow->nw_proto != IPPROTO_UDP
+ && flow->nw_proto != IPPROTO_SCTP)) {
+ inconsistent_match(usable_protocols);
+ }
+ /* Note on which transport protocol the port numbers are set.
+ * This allows this set action to be converted to an OF1.2 set field
+ * action. */
+ ofpact_get_SET_L4_DST_PORT(a)->flow_ip_proto = flow->nw_proto;
return 0;
case OFPACT_REG_MOVE:
case OFPACT_REG_LOAD:
return nxm_reg_load_check(ofpact_get_REG_LOAD(a), flow);
+ case OFPACT_SET_FIELD:
+ mf = ofpact_get_SET_FIELD(a)->field;
+ /* Require OXM_OF_VLAN_VID to have an existing VLAN header. */
+ if (!mf_are_prereqs_ok(mf, flow) ||
+ (mf->id == MFF_VLAN_VID && !(flow->vlan_tci & htons(VLAN_CFI)))) {
+ VLOG_WARN_RL(&rl, "set_field %s lacks correct prerequisities",
+ mf->name);
+ return OFPERR_OFPBAC_MATCH_INCONSISTENT;
+ }
+ /* Remember if we saw a vlan tag in the flow to aid translating to
+ * OpenFlow 1.1 if need be. */
+ ofpact_get_SET_FIELD(a)->flow_has_vlan =
+ (flow->vlan_tci & htons(VLAN_CFI)) == htons(VLAN_CFI);
+ if (mf->id == MFF_VLAN_TCI) {
+ /* The set field may add or remove the vlan tag,
+ * Mark the status temporarily. */
+ flow->vlan_tci = ofpact_get_SET_FIELD(a)->value.be16;
+ }
+ return 0;
+
case OFPACT_STACK_PUSH:
return nxm_stack_push_check(ofpact_get_STACK_PUSH(a), flow);
case OFPACT_STACK_POP:
return nxm_stack_pop_check(ofpact_get_STACK_POP(a), flow);
- case OFPACT_DEC_TTL:
+ case OFPACT_SET_MPLS_LABEL:
+ case OFPACT_SET_MPLS_TC:
case OFPACT_SET_MPLS_TTL:
case OFPACT_DEC_MPLS_TTL:
+ if (!eth_type_mpls(flow->dl_type)) {
+ inconsistent_match(usable_protocols);
+ }
+ return 0;
+
case OFPACT_SET_TUNNEL:
case OFPACT_SET_QUEUE:
case OFPACT_POP_QUEUE:
- case OFPACT_FIN_TIMEOUT:
case OFPACT_RESUBMIT:
return 0;
+ case OFPACT_FIN_TIMEOUT:
+ if (flow->nw_proto != IPPROTO_TCP) {
+ inconsistent_match(usable_protocols);
+ }
+ return 0;
+
case OFPACT_LEARN:
return learn_check(ofpact_get_LEARN(a), flow);
case OFPACT_PUSH_MPLS:
flow->dl_type = ofpact_get_PUSH_MPLS(a)->ethertype;
+ /* The packet is now MPLS and the MPLS payload is opaque.
+ * Thus nothing can be assumed about the network protocol.
+ * Temporarily mark that we have no nw_proto. */
+ flow->nw_proto = 0;
return 0;
case OFPACT_POP_MPLS:
+ if (!eth_type_mpls(flow->dl_type)) {
+ inconsistent_match(usable_protocols);
+ }
flow->dl_type = ofpact_get_POP_MPLS(a)->ethertype;
return 0;
return 0;
case OFPACT_CLEAR_ACTIONS:
+ return 0;
+
+ case OFPACT_WRITE_ACTIONS: {
+ /* Use a temporary copy of 'usable_protocols' because we can't check
+ * consistency of an action set. */
+ struct ofpact_nest *on = ofpact_get_WRITE_ACTIONS(a);
+ enum ofputil_protocol p = *usable_protocols;
+ return ofpacts_check(on->actions, ofpact_nest_get_action_len(on),
+ flow, max_ports, table_id, n_tables, &p);
+ }
+
case OFPACT_WRITE_METADATA:
return 0;
return 0;
}
- case OFPACT_GOTO_TABLE:
- if (ofpact_get_GOTO_TABLE(a)->table_id <= table_id) {
+ case OFPACT_GOTO_TABLE: {
+ uint8_t goto_table = ofpact_get_GOTO_TABLE(a)->table_id;
+ if ((table_id != 255 && goto_table <= table_id)
+ || (n_tables != 255 && goto_table >= n_tables)) {
return OFPERR_OFPBRC_BAD_TABLE_ID;
}
return 0;
+ }
case OFPACT_GROUP:
return 0;
default:
- NOT_REACHED();
+ OVS_NOT_REACHED();
}
}
* appropriate for a packet with the prerequisites satisfied by 'flow' in a
* switch with no more than 'max_ports' ports.
*
+ * If 'ofpacts' and 'flow' are inconsistent with one another, un-sets in
+ * '*usable_protocols' the protocols that forbid the inconsistency. (An
+ * example of an inconsistency between match and actions is a flow that does
+ * not match on an MPLS Ethertype but has an action that pops an MPLS label.)
+ *
+ * May annotate ofpacts with information gathered from the 'flow'.
+ *
* May temporarily modify 'flow', but restores the changes before returning. */
enum ofperr
-ofpacts_check(const struct ofpact ofpacts[], size_t ofpacts_len,
- struct flow *flow, ofp_port_t max_ports, uint8_t table_id)
+ofpacts_check(struct ofpact ofpacts[], size_t ofpacts_len,
+ struct flow *flow, ofp_port_t max_ports,
+ uint8_t table_id, uint8_t n_tables,
+ enum ofputil_protocol *usable_protocols)
{
- const struct ofpact *a;
+ struct ofpact *a;
ovs_be16 dl_type = flow->dl_type;
+ ovs_be16 vlan_tci = flow->vlan_tci;
+ uint8_t nw_proto = flow->nw_proto;
enum ofperr error = 0;
OFPACT_FOR_EACH (a, ofpacts, ofpacts_len) {
- error = ofpact_check__(a, flow, max_ports, table_id);
+ error = ofpact_check__(usable_protocols, a, flow,
+ max_ports, table_id, n_tables);
if (error) {
break;
}
}
- flow->dl_type = dl_type; /* Restore. */
+ /* Restore fields that may have been modified. */
+ flow->dl_type = dl_type;
+ flow->vlan_tci = vlan_tci;
+ flow->nw_proto = nw_proto;
return error;
}
+/* Like ofpacts_check(), but reports inconsistencies as
+ * OFPERR_OFPBAC_MATCH_INCONSISTENT rather than clearing bits. */
+enum ofperr
+ofpacts_check_consistency(struct ofpact ofpacts[], size_t ofpacts_len,
+ struct flow *flow, ofp_port_t max_ports,
+ uint8_t table_id, uint8_t n_tables,
+ enum ofputil_protocol usable_protocols)
+{
+ enum ofputil_protocol p = usable_protocols;
+ enum ofperr error;
+
+ error = ofpacts_check(ofpacts, ofpacts_len, flow, max_ports,
+ table_id, n_tables, &p);
+ return (error ? error
+ : p != usable_protocols ? OFPERR_OFPBAC_MATCH_INCONSISTENT
+ : 0);
+}
+
/* Verifies that the 'ofpacts_len' bytes of actions in 'ofpacts' are
* in the appropriate order as defined by the OpenFlow spec. */
enum ofperr
const struct ofpact *a;
enum ovs_instruction_type inst;
- inst = OVSINST_OFPIT11_APPLY_ACTIONS;
+ inst = OVSINST_OFPIT13_METER;
OFPACT_FOR_EACH (a, ofpacts, ofpacts_len) {
enum ovs_instruction_type next;
next = ovs_instruction_type_from_ofpact_type(a->type);
- if (inst != OVSINST_OFPIT11_APPLY_ACTIONS && next <= inst) {
+ if (a > ofpacts
+ && (inst == OVSINST_OFPIT11_APPLY_ACTIONS
+ ? next < inst
+ : next <= inst)) {
const char *name = ovs_instruction_name_from_type(inst);
const char *next_name = ovs_instruction_name_from_type(next);
static void
ofpact_note_to_nxast(const struct ofpact_note *note, struct ofpbuf *out)
{
- size_t start_ofs = out->size;
+ size_t start_ofs = ofpbuf_size(out);
struct nx_action_note *nan;
unsigned int remainder;
unsigned int len;
nan = ofputil_put_NXAST_NOTE(out);
- out->size -= sizeof nan->note;
+ ofpbuf_set_size(out, ofpbuf_size(out) - sizeof nan->note);
ofpbuf_put(out, note->data, note->length);
- len = out->size - start_ofs;
+ len = ofpbuf_size(out) - start_ofs;
remainder = len % OFP_ACTION_ALIGN;
if (remainder) {
ofpbuf_put_zeros(out, OFP_ACTION_ALIGN - remainder);
}
nan = ofpbuf_at(out, start_ofs, sizeof *nan);
- nan->len = htons(out->size - start_ofs);
+ nan->len = htons(ofpbuf_size(out) - start_ofs);
}
static void
ofpact_dec_ttl_to_nxast(ofpact_get_DEC_TTL(a), out);
break;
+ case OFPACT_SET_MPLS_LABEL:
+ ofputil_put_NXAST_SET_MPLS_LABEL(out)->label
+ = ofpact_get_SET_MPLS_LABEL(a)->label;
+ break;
+
+ case OFPACT_SET_MPLS_TC:
+ ofputil_put_NXAST_SET_MPLS_TC(out)->tc
+ = ofpact_get_SET_MPLS_TC(a)->tc;
+ break;
+
case OFPACT_SET_MPLS_TTL:
ofputil_put_NXAST_SET_MPLS_TTL(out)->ttl
= ofpact_get_SET_MPLS_TTL(a)->ttl;
case OFPACT_SET_ETH_DST:
case OFPACT_SET_IPV4_SRC:
case OFPACT_SET_IPV4_DST:
- case OFPACT_SET_IPV4_DSCP:
+ case OFPACT_SET_IP_DSCP:
+ case OFPACT_SET_IP_ECN:
+ case OFPACT_SET_IP_TTL:
case OFPACT_SET_L4_SRC_PORT:
case OFPACT_SET_L4_DST_PORT:
+ case OFPACT_WRITE_ACTIONS:
case OFPACT_CLEAR_ACTIONS:
case OFPACT_GOTO_TABLE:
case OFPACT_METER:
- NOT_REACHED();
+ case OFPACT_SET_FIELD:
+ OVS_NOT_REACHED();
}
}
\f
= ofpact_get_SET_IPV4_DST(a)->ipv4;
break;
- case OFPACT_SET_IPV4_DSCP:
+ case OFPACT_SET_IP_DSCP:
ofputil_put_OFPAT10_SET_NW_TOS(out)->nw_tos
- = ofpact_get_SET_IPV4_DSCP(a)->dscp;
+ = ofpact_get_SET_IP_DSCP(a)->dscp;
break;
case OFPACT_SET_L4_SRC_PORT:
break;
case OFPACT_PUSH_VLAN:
+ /* PUSH is a side effect of a SET_VLAN_VID/PCP, which should
+ * follow this action. */
+ break;
+
+ case OFPACT_SET_IP_ECN:
+ case OFPACT_SET_IP_TTL:
case OFPACT_CLEAR_ACTIONS:
+ case OFPACT_WRITE_ACTIONS:
case OFPACT_GOTO_TABLE:
case OFPACT_METER:
/* XXX */
case OFPACT_GROUP:
break;
+ case OFPACT_SET_FIELD:
+ set_field_to_openflow(ofpact_get_SET_FIELD(a), out);
+ break;
+
case OFPACT_CONTROLLER:
case OFPACT_OUTPUT_REG:
case OFPACT_BUNDLE:
case OFPACT_STACK_PUSH:
case OFPACT_STACK_POP:
case OFPACT_DEC_TTL:
+ case OFPACT_SET_MPLS_LABEL:
+ case OFPACT_SET_MPLS_TC:
case OFPACT_SET_MPLS_TTL:
case OFPACT_DEC_MPLS_TTL:
case OFPACT_SET_TUNNEL:
break;
}
}
-
-/* Converts the 'ofpacts_len' bytes of ofpacts in 'ofpacts' into OpenFlow 1.0
- * actions in 'openflow', appending the actions to any existing data in
- * 'openflow'. */
-void
-ofpacts_put_openflow10(const struct ofpact ofpacts[], size_t ofpacts_len,
- struct ofpbuf *openflow)
-{
- const struct ofpact *a;
-
- OFPACT_FOR_EACH (a, ofpacts, ofpacts_len) {
- ofpact_to_openflow10(a, openflow);
- }
-}
\f
/* Converting ofpacts to OpenFlow 1.1. */
break;
case OFPACT_SET_VLAN_VID:
+ /* Push a VLAN tag, if one was not seen at action validation time. */
+ if (!ofpact_get_SET_VLAN_VID(a)->flow_has_vlan
+ && ofpact_get_SET_VLAN_VID(a)->push_vlan_if_needed) {
+ ofputil_put_OFPAT11_PUSH_VLAN(out)->ethertype
+ = htons(ETH_TYPE_VLAN_8021Q);
+ }
ofputil_put_OFPAT11_SET_VLAN_VID(out)->vlan_vid
= htons(ofpact_get_SET_VLAN_VID(a)->vlan_vid);
break;
case OFPACT_SET_VLAN_PCP:
+ /* Push a VLAN tag, if one was not seen at action validation time. */
+ if (!ofpact_get_SET_VLAN_PCP(a)->flow_has_vlan
+ && ofpact_get_SET_VLAN_PCP(a)->push_vlan_if_needed) {
+ ofputil_put_OFPAT11_PUSH_VLAN(out)->ethertype
+ = htons(ETH_TYPE_VLAN_8021Q);
+ }
ofputil_put_OFPAT11_SET_VLAN_PCP(out)->vlan_pcp
= ofpact_get_SET_VLAN_PCP(a)->vlan_pcp;
break;
= ofpact_get_SET_IPV4_DST(a)->ipv4;
break;
- case OFPACT_SET_IPV4_DSCP:
+ case OFPACT_SET_IP_DSCP:
ofputil_put_OFPAT11_SET_NW_TOS(out)->nw_tos
- = ofpact_get_SET_IPV4_DSCP(a)->dscp;
+ = ofpact_get_SET_IP_DSCP(a)->dscp;
+ break;
+
+ case OFPACT_SET_IP_ECN:
+ ofputil_put_OFPAT11_SET_NW_ECN(out)->nw_ecn
+ = ofpact_get_SET_IP_ECN(a)->ecn;
+ break;
+
+ case OFPACT_SET_IP_TTL:
+ ofputil_put_OFPAT11_SET_NW_TTL(out)->nw_ttl
+ = ofpact_get_SET_IP_TTL(a)->ttl;
break;
case OFPACT_SET_L4_SRC_PORT:
ofpact_dec_ttl_to_openflow11(ofpact_get_DEC_TTL(a), out);
break;
+ case OFPACT_SET_MPLS_LABEL:
+ ofputil_put_OFPAT11_SET_MPLS_LABEL(out)->mpls_label
+ = ofpact_get_SET_MPLS_LABEL(a)->label;
+ break;
+
+ case OFPACT_SET_MPLS_TC:
+ ofputil_put_OFPAT11_SET_MPLS_TC(out)->mpls_tc
+ = ofpact_get_SET_MPLS_TC(a)->tc;
+ break;
+
case OFPACT_SET_MPLS_TTL:
ofputil_put_OFPAT11_SET_MPLS_TTL(out)->mpls_ttl
= ofpact_get_SET_MPLS_TTL(a)->ttl;
break;
case OFPACT_CLEAR_ACTIONS:
+ case OFPACT_WRITE_ACTIONS:
case OFPACT_GOTO_TABLE:
case OFPACT_METER:
- NOT_REACHED();
+ OVS_NOT_REACHED();
case OFPACT_GROUP:
ofputil_put_OFPAT11_GROUP(out)->group_id =
htonl(ofpact_get_GROUP(a)->group_id);
break;
+ case OFPACT_SET_FIELD:
+ set_field_to_openflow(ofpact_get_SET_FIELD(a), out);
+ break;
+
case OFPACT_CONTROLLER:
case OFPACT_OUTPUT_REG:
case OFPACT_BUNDLE:
}
}
-/* Converts the ofpacts in 'ofpacts' (terminated by OFPACT_END) into OpenFlow
- * 1.1 actions in 'openflow', appending the actions to any existing data in
+/* Output deprecated set actions as set_field actions. */
+static void
+ofpact_to_openflow12(const struct ofpact *a, struct ofpbuf *out)
+{
+ enum mf_field_id field;
+ union mf_value value;
+ struct ofpact_l4_port *l4port;
+ uint8_t proto;
+
+ /*
+ * Convert actions deprecated in OpenFlow 1.2 to Set Field actions,
+ * if possible.
+ */
+ switch ((int)a->type) {
+ case OFPACT_SET_VLAN_VID:
+ case OFPACT_SET_VLAN_PCP:
+ case OFPACT_SET_ETH_SRC:
+ case OFPACT_SET_ETH_DST:
+ case OFPACT_SET_IPV4_SRC:
+ case OFPACT_SET_IPV4_DST:
+ case OFPACT_SET_IP_DSCP:
+ case OFPACT_SET_IP_ECN:
+ case OFPACT_SET_L4_SRC_PORT:
+ case OFPACT_SET_L4_DST_PORT:
+ case OFPACT_SET_MPLS_LABEL:
+ case OFPACT_SET_MPLS_TC:
+ case OFPACT_SET_TUNNEL: /* Convert to a set_field, too. */
+
+ switch ((int)a->type) {
+
+ case OFPACT_SET_VLAN_VID:
+ if (!ofpact_get_SET_VLAN_VID(a)->flow_has_vlan &&
+ ofpact_get_SET_VLAN_VID(a)->push_vlan_if_needed) {
+ ofputil_put_OFPAT11_PUSH_VLAN(out)->ethertype
+ = htons(ETH_TYPE_VLAN_8021Q);
+ }
+ field = MFF_VLAN_VID;
+ /* Set-Field on OXM_OF_VLAN_VID must have OFPVID_PRESENT set. */
+ value.be16 = htons(ofpact_get_SET_VLAN_VID(a)->vlan_vid
+ | OFPVID12_PRESENT);
+ break;
+
+ case OFPACT_SET_VLAN_PCP:
+ if (!ofpact_get_SET_VLAN_PCP(a)->flow_has_vlan &&
+ ofpact_get_SET_VLAN_PCP(a)->push_vlan_if_needed) {
+ ofputil_put_OFPAT11_PUSH_VLAN(out)->ethertype
+ = htons(ETH_TYPE_VLAN_8021Q);
+ }
+ field = MFF_VLAN_PCP;
+ value.u8 = ofpact_get_SET_VLAN_PCP(a)->vlan_pcp;
+ break;
+
+ case OFPACT_SET_ETH_SRC:
+ field = MFF_ETH_SRC;
+ memcpy(value.mac, ofpact_get_SET_ETH_SRC(a)->mac, ETH_ADDR_LEN);
+ break;
+
+ case OFPACT_SET_ETH_DST:
+ field = MFF_ETH_DST;
+ memcpy(value.mac, ofpact_get_SET_ETH_DST(a)->mac, ETH_ADDR_LEN);
+ break;
+
+ case OFPACT_SET_IPV4_SRC:
+ field = MFF_IPV4_SRC;
+ value.be32 = ofpact_get_SET_IPV4_SRC(a)->ipv4;
+ break;
+
+ case OFPACT_SET_IPV4_DST:
+ field = MFF_IPV4_DST;
+ value.be32 = ofpact_get_SET_IPV4_DST(a)->ipv4;
+ break;
+
+ case OFPACT_SET_IP_DSCP:
+ field = MFF_IP_DSCP_SHIFTED; /* OXM_OF_IP_DSCP */
+ value.u8 = ofpact_get_SET_IP_DSCP(a)->dscp >> 2;
+ break;
+
+ case OFPACT_SET_IP_ECN:
+ field = MFF_IP_ECN;
+ value.u8 = ofpact_get_SET_IP_ECN(a)->ecn;
+ break;
+
+ case OFPACT_SET_L4_SRC_PORT:
+ /* We keep track of IP protocol while translating actions to be
+ * able to translate to the proper OXM type.
+ * If the IP protocol type is unknown, the translation cannot
+ * be performed and we will send the action using the original
+ * action type. */
+ l4port = ofpact_get_SET_L4_SRC_PORT(a);
+ proto = l4port->flow_ip_proto;
+ field = proto == IPPROTO_TCP ? MFF_TCP_SRC
+ : proto == IPPROTO_UDP ? MFF_UDP_SRC
+ : proto == IPPROTO_SCTP ? MFF_SCTP_SRC
+ : MFF_N_IDS; /* RFC: Unknown IP proto, do not translate. */
+ value.be16 = htons(l4port->port);
+ break;
+
+ case OFPACT_SET_L4_DST_PORT:
+ l4port = ofpact_get_SET_L4_DST_PORT(a);
+ proto = l4port->flow_ip_proto;
+ field = proto == IPPROTO_TCP ? MFF_TCP_DST
+ : proto == IPPROTO_UDP ? MFF_UDP_DST
+ : proto == IPPROTO_SCTP ? MFF_SCTP_DST
+ : MFF_N_IDS; /* RFC: Unknown IP proto, do not translate. */
+ value.be16 = htons(l4port->port);
+ break;
+
+ case OFPACT_SET_MPLS_LABEL:
+ field = MFF_MPLS_LABEL;
+ value.be32 = ofpact_get_SET_MPLS_LABEL(a)->label;
+ break;
+
+ case OFPACT_SET_MPLS_TC:
+ field = MFF_MPLS_TC;
+ value.u8 = ofpact_get_SET_MPLS_TC(a)->tc;
+ break;
+
+ case OFPACT_SET_TUNNEL:
+ field = MFF_TUN_ID;
+ value.be64 = htonll(ofpact_get_SET_TUNNEL(a)->tun_id);
+ break;
+
+ default:
+ field = MFF_N_IDS;
+ }
+
+ /* Put the action out as a set field action, if possible. */
+ if (field < MFF_N_IDS) {
+ uint64_t ofpacts_stub[128 / 8];
+ struct ofpbuf sf_act;
+ struct ofpact_set_field *sf;
+
+ ofpbuf_use_stub(&sf_act, ofpacts_stub, sizeof ofpacts_stub);
+ sf = ofpact_put_SET_FIELD(&sf_act);
+ sf->field = mf_from_id(field);
+ memcpy(&sf->value, &value, sf->field->n_bytes);
+ set_field_to_openflow(sf, out);
+ return;
+ }
+ }
+
+ ofpact_to_openflow11(a, out);
+}
+
+/* Converts the 'ofpacts_len' bytes of ofpacts in 'ofpacts' into OpenFlow
+ * actions in 'openflow', appending the actions to any existing data in
* 'openflow'. */
size_t
-ofpacts_put_openflow11_actions(const struct ofpact ofpacts[],
- size_t ofpacts_len, struct ofpbuf *openflow)
+ofpacts_put_openflow_actions(const struct ofpact ofpacts[], size_t ofpacts_len,
+ struct ofpbuf *openflow,
+ enum ofp_version ofp_version)
{
const struct ofpact *a;
- size_t start_size = openflow->size;
+ size_t start_size = ofpbuf_size(openflow);
+
+ void (*translate)(const struct ofpact *a, struct ofpbuf *out) =
+ (ofp_version == OFP10_VERSION) ? ofpact_to_openflow10 :
+ (ofp_version == OFP11_VERSION) ? ofpact_to_openflow11 :
+ ofpact_to_openflow12;
OFPACT_FOR_EACH (a, ofpacts, ofpacts_len) {
- ofpact_to_openflow11(a, openflow);
+ translate(a, openflow);
}
-
- return openflow->size - start_size;
+ return ofpbuf_size(openflow) - start_size;
}
static void
/* Update the instruction's length (or, if it's empty, delete it). */
oia = ofpbuf_at_assert(openflow, ofs, sizeof *oia);
- if (openflow->size > ofs + sizeof *oia) {
- oia->len = htons(openflow->size - ofs);
+ if (ofpbuf_size(openflow) > ofs + sizeof *oia) {
+ oia->len = htons(ofpbuf_size(openflow) - ofs);
} else {
- openflow->size = ofs;
+ ofpbuf_set_size(openflow, ofs);
}
}
void
-ofpacts_put_openflow11_instructions(const struct ofpact ofpacts[],
- size_t ofpacts_len,
- struct ofpbuf *openflow)
+ofpacts_put_openflow_instructions(const struct ofpact ofpacts[],
+ size_t ofpacts_len,
+ struct ofpbuf *openflow,
+ enum ofp_version ofp_version)
{
const struct ofpact *a;
+ ovs_assert(ofp_version >= OFP11_VERSION);
+
OFPACT_FOR_EACH (a, ofpacts, ofpacts_len) {
switch (ovs_instruction_type_from_ofpact_type(a->type)) {
case OVSINST_OFPIT11_CLEAR_ACTIONS:
break;
}
- case OVSINST_OFPIT13_METER: {
- const struct ofpact_meter *om;
- struct ofp13_instruction_meter *oim;
+ case OVSINST_OFPIT13_METER:
+ if (ofp_version >= OFP13_VERSION) {
+ const struct ofpact_meter *om;
+ struct ofp13_instruction_meter *oim;
- om = ofpact_get_METER(a);
- oim = instruction_put_OFPIT13_METER(openflow);
- oim->meter_id = htonl(om->meter_id);
+ om = ofpact_get_METER(a);
+ oim = instruction_put_OFPIT13_METER(openflow);
+ oim->meter_id = htonl(om->meter_id);
+ }
break;
- }
case OVSINST_OFPIT11_APPLY_ACTIONS: {
- const size_t ofs = openflow->size;
+ const size_t ofs = ofpbuf_size(openflow);
const size_t ofpacts_len_left =
(uint8_t*)ofpact_end(ofpacts, ofpacts_len) - (uint8_t*)a;
const struct ofpact *action;
!= OVSINST_OFPIT11_APPLY_ACTIONS) {
break;
}
- ofpact_to_openflow11(action, openflow);
+ if (ofp_version == OFP11_VERSION) {
+ ofpact_to_openflow11(action, openflow);
+ } else {
+ ofpact_to_openflow12(action, openflow);
+ }
processed = action;
}
ofpacts_update_instruction_actions(openflow, ofs);
break;
}
- case OVSINST_OFPIT11_WRITE_ACTIONS:
- NOT_REACHED();
+ case OVSINST_OFPIT11_WRITE_ACTIONS: {
+ const size_t ofs = ofpbuf_size(openflow);
+ const struct ofpact_nest *on;
+
+ on = ofpact_get_WRITE_ACTIONS(a);
+ instruction_put_OFPIT11_WRITE_ACTIONS(openflow);
+ ofpacts_put_openflow_actions(on->actions,
+ ofpact_nest_get_action_len(on),
+ openflow, ofp_version);
+ ofpacts_update_instruction_actions(openflow, ofs);
+
+ break;
+ }
}
}
}
case OFPACT_SET_ETH_DST:
case OFPACT_SET_IPV4_SRC:
case OFPACT_SET_IPV4_DST:
- case OFPACT_SET_IPV4_DSCP:
+ case OFPACT_SET_IP_DSCP:
+ case OFPACT_SET_IP_ECN:
+ case OFPACT_SET_IP_TTL:
case OFPACT_SET_L4_SRC_PORT:
case OFPACT_SET_L4_DST_PORT:
case OFPACT_REG_MOVE:
case OFPACT_REG_LOAD:
+ case OFPACT_SET_FIELD:
case OFPACT_STACK_PUSH:
case OFPACT_STACK_POP:
case OFPACT_DEC_TTL:
+ case OFPACT_SET_MPLS_LABEL:
+ case OFPACT_SET_MPLS_TC:
case OFPACT_SET_MPLS_TTL:
case OFPACT_DEC_MPLS_TTL:
case OFPACT_SET_TUNNEL:
case OFPACT_POP_MPLS:
case OFPACT_SAMPLE:
case OFPACT_CLEAR_ACTIONS:
+ case OFPACT_WRITE_ACTIONS:
case OFPACT_GOTO_TABLE:
case OFPACT_METER:
case OFPACT_GROUP:
{
return a_len == b_len && !memcmp(a, b, a_len);
}
+
+/* Finds the OFPACT_METER action, if any, in the 'ofpacts_len' bytes of
+ * 'ofpacts'. If found, returns its meter ID; if not, returns 0.
+ *
+ * This function relies on the order of 'ofpacts' being correct (as checked by
+ * ofpacts_verify()). */
+uint32_t
+ofpacts_get_meter(const struct ofpact ofpacts[], size_t ofpacts_len)
+{
+ const struct ofpact *a;
+
+ OFPACT_FOR_EACH (a, ofpacts, ofpacts_len) {
+ enum ovs_instruction_type inst;
+
+ inst = ovs_instruction_type_from_ofpact_type(a->type);
+ if (a->type == OFPACT_METER) {
+ return ofpact_get_METER(a)->meter_id;
+ } else if (inst > OVSINST_OFPIT13_METER) {
+ break;
+ }
+ }
+
+ return 0;
+}
\f
/* Formatting ofpacts. */
const struct ofpact_metadata *metadata;
const struct ofpact_tunnel *tunnel;
const struct ofpact_sample *sample;
+ const struct ofpact_set_field *set_field;
+ const struct mf_field *mf;
ofp_port_t port;
switch (a->type) {
enqueue = ofpact_get_ENQUEUE(a);
ds_put_format(s, "enqueue:");
ofputil_format_port(enqueue->port, s);
- ds_put_format(s, "q%"PRIu32, enqueue->queue);
+ ds_put_format(s, ":%"PRIu32, enqueue->queue);
break;
case OFPACT_OUTPUT_REG:
break;
case OFPACT_SET_VLAN_VID:
- ds_put_format(s, "mod_vlan_vid:%"PRIu16,
+ ds_put_format(s, "%s:%"PRIu16,
+ (a->compat == OFPUTIL_OFPAT11_SET_VLAN_VID
+ ? "set_vlan_vid"
+ : "mod_vlan_vid"),
ofpact_get_SET_VLAN_VID(a)->vlan_vid);
break;
case OFPACT_SET_VLAN_PCP:
- ds_put_format(s, "mod_vlan_pcp:%"PRIu8,
+ ds_put_format(s, "%s:%"PRIu8,
+ (a->compat == OFPUTIL_OFPAT11_SET_VLAN_PCP
+ ? "set_vlan_pcp"
+ : "mod_vlan_pcp"),
ofpact_get_SET_VLAN_PCP(a)->vlan_pcp);
break;
case OFPACT_STRIP_VLAN:
- ds_put_cstr(s, "strip_vlan");
+ ds_put_cstr(s, a->compat == OFPUTIL_OFPAT11_POP_VLAN
+ ? "pop_vlan" : "strip_vlan");
break;
case OFPACT_PUSH_VLAN:
IP_ARGS(ofpact_get_SET_IPV4_DST(a)->ipv4));
break;
- case OFPACT_SET_IPV4_DSCP:
- ds_put_format(s, "mod_nw_tos:%d", ofpact_get_SET_IPV4_DSCP(a)->dscp);
+ case OFPACT_SET_IP_DSCP:
+ ds_put_format(s, "mod_nw_tos:%d", ofpact_get_SET_IP_DSCP(a)->dscp);
+ break;
+
+ case OFPACT_SET_IP_ECN:
+ ds_put_format(s, "mod_nw_ecn:%d", ofpact_get_SET_IP_ECN(a)->ecn);
+ break;
+
+ case OFPACT_SET_IP_TTL:
+ ds_put_format(s, "mod_nw_ttl:%d", ofpact_get_SET_IP_TTL(a)->ttl);
break;
case OFPACT_SET_L4_SRC_PORT:
nxm_format_reg_load(ofpact_get_REG_LOAD(a), s);
break;
+ case OFPACT_SET_FIELD:
+ set_field = ofpact_get_SET_FIELD(a);
+ mf = set_field->field;
+ ds_put_format(s, "set_field:");
+ mf_format(mf, &set_field->value, NULL, s);
+ ds_put_format(s, "->%s", mf->name);
+ break;
+
case OFPACT_STACK_PUSH:
nxm_format_stack_push(ofpact_get_STACK_PUSH(a), s);
break;
print_dec_ttl(ofpact_get_DEC_TTL(a), s);
break;
+ case OFPACT_SET_MPLS_LABEL:
+ ds_put_format(s, "set_mpls_label(%"PRIu32")",
+ ntohl(ofpact_get_SET_MPLS_LABEL(a)->label));
+ break;
+
+ case OFPACT_SET_MPLS_TC:
+ ds_put_format(s, "set_mpls_ttl(%"PRIu8")",
+ ofpact_get_SET_MPLS_TC(a)->tc);
+ break;
+
case OFPACT_SET_MPLS_TTL:
ds_put_format(s, "set_mpls_ttl(%"PRIu8")",
ofpact_get_SET_MPLS_TTL(a)->ttl);
sample->obs_domain_id, sample->obs_point_id);
break;
+ case OFPACT_WRITE_ACTIONS: {
+ struct ofpact_nest *on = ofpact_get_WRITE_ACTIONS(a);
+ ds_put_format(s, "%s(",
+ ovs_instruction_name_from_type(
+ OVSINST_OFPIT11_WRITE_ACTIONS));
+ ofpacts_format(on->actions, ofpact_nest_get_action_len(on), s);
+ ds_put_char(s, ')');
+ break;
+ }
+
case OFPACT_CLEAR_ACTIONS:
ds_put_format(s, "%s",
ovs_instruction_name_from_type(
ovs_instruction_name_from_type(
OVSINST_OFPIT11_WRITE_METADATA),
ntohll(metadata->metadata));
- if (metadata->mask != htonll(UINT64_MAX)) {
+ if (metadata->mask != OVS_BE64_MAX) {
ds_put_format(s, "/%#"PRIx64, ntohll(metadata->mask));
}
break;
ofpacts_format(const struct ofpact *ofpacts, size_t ofpacts_len,
struct ds *string)
{
- ds_put_cstr(string, "actions=");
if (!ofpacts_len) {
ds_put_cstr(string, "drop");
} else {
struct ofpact *ofpact;
ofpact_pad(ofpacts);
- ofpact = ofpacts->l2 = ofpbuf_put_uninit(ofpacts, len);
+ ofpact = ofpacts->frame = ofpbuf_put_uninit(ofpacts, len);
ofpact_init(ofpact, type, len);
return ofpact;
}
void
ofpact_update_len(struct ofpbuf *ofpacts, struct ofpact *ofpact)
{
- ovs_assert(ofpact == ofpacts->l2);
+ ovs_assert(ofpact == ofpacts->frame);
ofpact->len = (char *) ofpbuf_tail(ofpacts) - (char *) ofpact;
}
void
ofpact_pad(struct ofpbuf *ofpacts)
{
- unsigned int rem = ofpacts->size % OFPACT_ALIGNTO;
- if (rem) {
- ofpbuf_put_zeros(ofpacts, OFPACT_ALIGNTO - rem);
+ unsigned int pad = PAD_SIZE(ofpbuf_size(ofpacts), OFPACT_ALIGNTO);
+ if (pad) {
+ ofpbuf_put_zeros(ofpacts, pad);
}
}
-
-void
-ofpact_set_field_init(struct ofpact_reg_load *load, const struct mf_field *mf,
- const void *src)
-{
- load->ofpact.compat = OFPUTIL_OFPAT12_SET_FIELD;
- load->dst.field = mf;
- load->dst.ofs = 0;
- load->dst.n_bits = mf->n_bits;
- bitwise_copy(src, mf->n_bytes, load->dst.ofs,
- &load->subvalue, sizeof load->subvalue, 0, mf->n_bits);
-}
git://git.onelab.eu / sliver-openvswitch.git / blobdiff