#include "classifier.h"
#include "dynamic-string.h"
#include "meta-flow.h"
+#include "ofp-actions.h"
#include "ofp-errors.h"
#include "ofp-util.h"
#include "ofpbuf.h"
}
\f
void
-nxm_parse_reg_move(struct nx_action_reg_move *move, const char *s)
+nxm_parse_reg_move(struct ofpact_reg_move *move, const char *s)
{
const char *full_s = s;
- struct mf_subfield src, dst;
- s = mf_parse_subfield(&src, s);
+ s = mf_parse_subfield(&move->src, s);
if (strncmp(s, "->", 2)) {
ovs_fatal(0, "%s: missing `->' following source", full_s);
}
s += 2;
- s = mf_parse_subfield(&dst, s);
+ s = mf_parse_subfield(&move->dst, s);
if (*s != '\0') {
ovs_fatal(0, "%s: trailing garbage following destination", full_s);
}
- if (src.n_bits != dst.n_bits) {
+ if (move->src.n_bits != move->dst.n_bits) {
ovs_fatal(0, "%s: source field is %d bits wide but destination is "
- "%d bits wide", full_s, src.n_bits, dst.n_bits);
+ "%d bits wide", full_s,
+ move->src.n_bits, move->dst.n_bits);
}
-
- ofputil_init_NXAST_REG_MOVE(move);
- move->n_bits = htons(src.n_bits);
- move->src_ofs = htons(src.ofs);
- move->dst_ofs = htons(dst.ofs);
- move->src = htonl(src.field->nxm_header);
- move->dst = htonl(dst.field->nxm_header);
}
void
-nxm_parse_reg_load(struct nx_action_reg_load *load, const char *s)
+nxm_parse_reg_load(struct ofpact_reg_load *load, const char *s)
{
const char *full_s = s;
- struct mf_subfield dst;
- uint64_t value;
- value = strtoull(s, (char **) &s, 0);
+ load->value = strtoull(s, (char **) &s, 0);
if (strncmp(s, "->", 2)) {
ovs_fatal(0, "%s: missing `->' following value", full_s);
}
s += 2;
- s = mf_parse_subfield(&dst, s);
+ s = mf_parse_subfield(&load->dst, s);
if (*s != '\0') {
ovs_fatal(0, "%s: trailing garbage following destination", full_s);
}
- if (dst.n_bits < 64 && (value >> dst.n_bits) != 0) {
- ovs_fatal(0, "%s: value %"PRIu64" does not fit into %u bits",
- full_s, value, dst.n_bits);
+ if (load->dst.n_bits < 64 && (load->value >> load->dst.n_bits) != 0) {
+ ovs_fatal(0, "%s: value %"PRIu64" does not fit into %d bits",
+ full_s, load->value, load->dst.n_bits);
}
-
- ofputil_init_NXAST_REG_LOAD(load);
- load->ofs_nbits = nxm_encode_ofs_nbits(dst.ofs, dst.n_bits);
- load->dst = htonl(dst.field->nxm_header);
- load->value = htonll(value);
}
\f
/* nxm_format_reg_move(), nxm_format_reg_load(). */
void
-nxm_format_reg_move(const struct nx_action_reg_move *move, struct ds *s)
+nxm_format_reg_move(const struct ofpact_reg_move *move, struct ds *s)
{
- struct mf_subfield src, dst;
-
- nxm_decode_discrete(&src, move->src, move->src_ofs, move->n_bits);
- nxm_decode_discrete(&dst, move->dst, move->dst_ofs, move->n_bits);
-
ds_put_format(s, "move:");
- mf_format_subfield(&src, s);
+ mf_format_subfield(&move->src, s);
ds_put_cstr(s, "->");
- mf_format_subfield(&dst, s);
+ mf_format_subfield(&move->dst, s);
}
void
-nxm_format_reg_load(const struct nx_action_reg_load *load, struct ds *s)
+nxm_format_reg_load(const struct ofpact_reg_load *load, struct ds *s)
+{
+ ds_put_format(s, "load:%#"PRIx64"->", load->value);
+ mf_format_subfield(&load->dst, s);
+}
+\f
+enum ofperr
+nxm_reg_move_from_openflow(const struct nx_action_reg_move *narm,
+ struct ofpbuf *ofpacts)
{
- struct mf_subfield dst;
+ struct ofpact_reg_move *move;
- ds_put_format(s, "load:%#"PRIx64"->", ntohll(load->value));
+ move = ofpact_put_REG_MOVE(ofpacts);
+ move->src.field = mf_from_nxm_header(ntohl(narm->src));
+ move->src.ofs = ntohs(narm->src_ofs);
+ move->src.n_bits = ntohs(narm->n_bits);
+ move->dst.field = mf_from_nxm_header(ntohl(narm->dst));
+ move->dst.ofs = ntohs(narm->dst_ofs);
+ move->dst.n_bits = ntohs(narm->n_bits);
- nxm_decode(&dst, load->dst, load->ofs_nbits);
- mf_format_subfield(&dst, s);
+ return nxm_reg_move_check(move, NULL);
}
-\f
-/* nxm_check_reg_move(), nxm_check_reg_load(). */
enum ofperr
-nxm_check_reg_move(const struct nx_action_reg_move *action,
- const struct flow *flow)
+nxm_reg_load_from_openflow(const struct nx_action_reg_load *narl,
+ struct ofpbuf *ofpacts)
{
- struct mf_subfield src;
- struct mf_subfield dst;
- int error;
+ struct ofpact_reg_load *load;
- nxm_decode_discrete(&src, action->src, action->src_ofs, action->n_bits);
- error = mf_check_src(&src, flow);
- if (error) {
- return error;
+ load = ofpact_put_REG_LOAD(ofpacts);
+ load->dst.field = mf_from_nxm_header(ntohl(narl->dst));
+ load->dst.ofs = nxm_decode_ofs(narl->ofs_nbits);
+ load->dst.n_bits = nxm_decode_n_bits(narl->ofs_nbits);
+ load->value = ntohll(narl->value);
+
+ /* Reject 'narl' if a bit numbered 'n_bits' or higher is set to 1 in
+ * narl->value. */
+ if (load->dst.n_bits < 64 && load->value >> load->dst.n_bits) {
+ return OFPERR_OFPBAC_BAD_ARGUMENT;
}
- nxm_decode_discrete(&dst, action->dst, action->dst_ofs, action->n_bits);
- return mf_check_dst(&dst, flow);
+ return nxm_reg_load_check(load, NULL);
}
-
+\f
enum ofperr
-nxm_check_reg_load(const struct nx_action_reg_load *action,
- const struct flow *flow)
+nxm_reg_move_check(const struct ofpact_reg_move *move, const struct flow *flow)
{
- struct mf_subfield dst;
enum ofperr error;
- nxm_decode(&dst, action->dst, action->ofs_nbits);
- error = mf_check_dst(&dst, flow);
+ error = mf_check_src(&move->src, flow);
if (error) {
return error;
}
- /* Reject 'action' if a bit numbered 'n_bits' or higher is set to 1 in
- * action->value. */
- if (dst.n_bits < 64 && ntohll(action->value) >> dst.n_bits) {
- return OFPERR_OFPBAC_BAD_ARGUMENT;
- }
+ return mf_check_dst(&move->dst, NULL);
+}
- return 0;
+enum ofperr
+nxm_reg_load_check(const struct ofpact_reg_load *load, const struct flow *flow)
+{
+ return mf_check_dst(&load->dst, flow);
}
\f
-/* nxm_execute_reg_move(), nxm_execute_reg_load(). */
-
void
-nxm_execute_reg_move(const struct nx_action_reg_move *action,
- struct flow *flow)
+nxm_reg_move_to_nxast(const struct ofpact_reg_move *move,
+ struct ofpbuf *openflow)
{
- struct mf_subfield src, dst;
- union mf_value src_value;
- union mf_value dst_value;
+ struct nx_action_reg_move *narm;
- nxm_decode_discrete(&src, action->src, action->src_ofs, action->n_bits);
- nxm_decode_discrete(&dst, action->dst, action->dst_ofs, action->n_bits);
+ narm = ofputil_put_NXAST_REG_MOVE(openflow);
+ narm->n_bits = htons(move->dst.n_bits);
+ narm->src_ofs = htons(move->src.ofs);
+ narm->dst_ofs = htons(move->dst.ofs);
+ narm->src = htonl(move->src.field->nxm_header);
+ narm->dst = htonl(move->dst.field->nxm_header);
+}
- mf_get_value(dst.field, flow, &dst_value);
- mf_get_value(src.field, flow, &src_value);
- bitwise_copy(&src_value, src.field->n_bytes, src.ofs,
- &dst_value, dst.field->n_bytes, dst.ofs,
- src.n_bits);
- mf_set_flow_value(dst.field, &dst_value, flow);
+void
+nxm_reg_load_to_nxast(const struct ofpact_reg_load *load,
+ struct ofpbuf *openflow)
+{
+ struct nx_action_reg_load *narl;
+
+ narl = ofputil_put_NXAST_REG_LOAD(openflow);
+ narl->ofs_nbits = nxm_encode_ofs_nbits(load->dst.ofs, load->dst.n_bits);
+ narl->dst = htonl(load->dst.field->nxm_header);
+ narl->value = htonll(load->value);
}
+\f
+/* nxm_execute_reg_move(), nxm_execute_reg_load(). */
void
-nxm_execute_reg_load(const struct nx_action_reg_load *action,
+nxm_execute_reg_move(const struct ofpact_reg_move *move,
struct flow *flow)
{
- struct mf_subfield dst;
+ union mf_value src_value;
+ union mf_value dst_value;
- nxm_decode(&dst, action->dst, action->ofs_nbits);
- mf_set_subfield_value(&dst, ntohll(action->value), flow);
+ mf_get_value(move->dst.field, flow, &dst_value);
+ mf_get_value(move->src.field, flow, &src_value);
+ bitwise_copy(&src_value, move->src.field->n_bytes, move->src.ofs,
+ &dst_value, move->dst.field->n_bytes, move->dst.ofs,
+ move->src.n_bits);
+ mf_set_flow_value(move->dst.field, &dst_value, flow);
}
-/* Initializes 'sf->field' with the field corresponding to the given NXM
- * 'header' and 'sf->ofs' and 'sf->n_bits' decoded from 'ofs_nbits' with
- * nxm_decode_ofs() and nxm_decode_n_bits(), respectively.
- *
- * Afterward, 'sf' might be invalid in a few different ways:
- *
- * - 'sf->field' will be NULL if 'header' is unknown.
- *
- * - 'sf->ofs' and 'sf->n_bits' might exceed the width of sf->field.
- *
- * The caller should call mf_check_src() or mf_check_dst() to check for these
- * problems. */
void
-nxm_decode(struct mf_subfield *sf, ovs_be32 header, ovs_be16 ofs_nbits)
+nxm_execute_reg_load(const struct ofpact_reg_load *load, struct flow *flow)
{
- sf->field = mf_from_nxm_header(ntohl(header));
- sf->ofs = nxm_decode_ofs(ofs_nbits);
- sf->n_bits = nxm_decode_n_bits(ofs_nbits);
+ nxm_reg_load(&load->dst, load->value, flow);
}
-/* Initializes 'sf->field' with the field corresponding to the given NXM
- * 'header' and 'sf->ofs' and 'sf->n_bits' from 'ofs' and 'n_bits',
- * respectively.
- *
- * Afterward, 'sf' might be invalid in a few different ways:
- *
- * - 'sf->field' will be NULL if 'header' is unknown.
- *
- * - 'sf->ofs' and 'sf->n_bits' might exceed the width of sf->field.
- *
- * The caller should call mf_check_src() or mf_check_dst() to check for these
- * problems. */
void
-nxm_decode_discrete(struct mf_subfield *sf, ovs_be32 header,
- ovs_be16 ofs, ovs_be16 n_bits)
+nxm_reg_load(const struct mf_subfield *dst, uint64_t src_data,
+ struct flow *flow)
{
- sf->field = mf_from_nxm_header(ntohl(header));
- sf->ofs = ntohs(ofs);
- sf->n_bits = ntohs(n_bits);
+ union mf_value dst_value;
+ union mf_value src_value;
+
+ mf_get_value(dst->field, flow, &dst_value);
+ src_value.be64 = htonll(src_data);
+ bitwise_copy(&src_value, sizeof src_value.be64, 0,
+ &dst_value, dst->field->n_bytes, dst->ofs,
+ dst->n_bits);
+ mf_set_flow_value(dst->field, &dst_value, flow);
}
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