Signed-off-by: Isaku Yamahata <yamah...@valinux.co.jp>
---
v2
newly created
---
lib/nx-match.c | 103 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
lib/nx-match.h | 2 +
2 files changed, 105 insertions(+), 0 deletions(-)
diff --git a/lib/nx-match.c b/lib/nx-match.c
index f5d3530..42df04f 100644
--- a/lib/nx-match.c
+++ b/lib/nx-match.c
@@ -893,6 +893,44 @@ nxm_reg_load_from_openflow(const struct nx_action_reg_load
*narl,
return nxm_reg_load_check(load, NULL);
}
+
+enum ofperr
+nxm_reg_load_from_openflow12_set_field(
+ const struct ofp12_action_set_field * oasf, struct ofpbuf *ofpacts)
+{
+ ovs_be32 *p = (ovs_be32*)oasf->field;
+ uint32_t oxm_header = ntohl(*p);
+ uint8_t oxm_length = NXM_LENGTH(oxm_header);
+ struct ofpact_reg_load *load;
+ const struct mf_field *mf;
+ int i;
+
+ /* 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_ARGUMENT;
+ }
+ for (i = sizeof(*oasf) + oxm_length; i < oasf->len; i++) {
+ if (((const char*)oasf)[i]) {
+ return OFPERR_OFPBAC_BAD_ARGUMENT;
+ }
+ }
+
+ if (NXM_HASMASK(oxm_header)) {
+ return OFPERR_OFPBAC_BAD_ARGUMENT;
+ }
+ mf = mf_from_nxm_header(oxm_header);
+ if (!mf || mf->oxm_header == 0) {
+ return OFPERR_OFPBAC_BAD_ARGUMENT;
+ }
+ load = ofpact_put_REG_LOAD(ofpacts);
+ load->ofpact.compat = OFPUTIL_OFPAT12_SET_FIELD;
+ load->dst.field = mf;
+ load->dst.ofs = 0;
+ load->dst.n_bits = mf->n_bits;
+ memcpy(&load->value, oasf + 1, mf->n_bytes);
+
+ return nxm_reg_load_check(load, NULL);
+}
enum ofperr
nxm_reg_move_check(const struct ofpact_reg_move *move, const struct flow *flow)
@@ -910,6 +948,55 @@ nxm_reg_move_check(const struct ofpact_reg_move *move,
const struct flow *flow)
enum ofperr
nxm_reg_load_check(const struct ofpact_reg_load *load, const struct flow *flow)
{
+ if (load->ofpact.compat == OFPUTIL_OFPAT12_SET_FIELD) {
+ const struct mf_field *mf = load->dst.field;
+ switch (mf->id) {
+ case MFF_ETH_SRC:
+ case MFF_ETH_DST:
+ case MFF_VLAN_VID:
+ case MFF_VLAN_PCP:
+ case MFF_IPV4_SRC:
+ case MFF_IPV4_DST:
+ case MFF_ETH_TYPE:
+ case MFF_VLAN_TCI:
+ case MFF_IP_PROTO:
+ case MFF_IP_ECN:
+ case MFF_IP_DSCP:
+ case MFF_TCP_SRC:
+ case MFF_TCP_DST:
+ case MFF_UDP_SRC:
+ case MFF_UDP_DST:
+ case MFF_ARP_OP:
+ case MFF_ARP_SPA:
+ case MFF_ARP_TPA:
+ case MFF_ARP_SHA:
+ case MFF_ARP_THA:
+ case MFF_IPV6_SRC:
+ case MFF_IPV6_DST:
+ case MFF_ICMPV4_TYPE:
+ case MFF_ICMPV4_CODE:
+ case MFF_ICMPV6_TYPE:
+ case MFF_ICMPV6_CODE:
+ case MFF_ND_TARGET:
+ case MFF_ND_SLL:
+ case MFF_ND_TLL:
+ break;
+
+ case MFF_TUN_ID:
+ case MFF_IN_PORT:
+ CASE_MFF_REGS:
+ case MFF_IP_TTL:
+ case MFF_IP_FRAG:
+ case MFF_IPV6_LABEL:
+ case MFF_N_IDS:
+ default:
+ return OFPERR_OFPBAC_BAD_ARGUMENT;
+ }
+ if (!mf_is_value_valid(mf, &load->value) ||
+ !mf_are_prereqs_ok(mf, flow)) {
+ return OFPERR_OFPBAC_BAD_ARGUMENT;
+ }
+ }
return mf_check_dst(&load->dst, flow);
}
@@ -933,6 +1020,18 @@ nxm_reg_load_to_openflow(const struct ofpact_reg_load
*load,
{
struct nx_action_reg_load *narl;
+ if (load->ofpact.compat == OFPUTIL_OFPAT12_SET_FIELD) {
+ const struct mf_field *mf = load->dst.field;
+ struct ofp12_action_set_field *oasf;
+ ovs_be32* oxm_header;
+
+ oasf = ofputil_put_OFPAT12_SET_FIELD(openflow);
+ oxm_header = (ovs_be32*)oasf->field;
+ *oxm_header = mf->oxm_header;
+ memcpy(oasf + 1, &load->value, mf->n_bytes);
+ return;
+ }
+
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);
@@ -959,6 +1058,10 @@ nxm_execute_reg_move(const struct ofpact_reg_move *move,
void
nxm_execute_reg_load(const struct ofpact_reg_load *load, struct flow *flow)
{
+ if (load->ofpact.compat == OFPUTIL_OFPAT12_SET_FIELD) {
+ mf_set_flow_value(load->dst.field, &load->value, flow);
+ return;
+ }
nxm_reg_load(&load->dst, ntohll(load->value.be64), flow);
}
diff --git a/lib/nx-match.h b/lib/nx-match.h
index 1d7fad5..96ee0e5 100644
--- a/lib/nx-match.h
+++ b/lib/nx-match.h
@@ -63,6 +63,8 @@ enum ofperr nxm_reg_move_from_openflow(const struct
nx_action_reg_move *,
struct ofpbuf *ofpacts);
enum ofperr nxm_reg_load_from_openflow(const struct nx_action_reg_load *,
struct ofpbuf *ofpacts);
+enum ofperr nxm_reg_load_from_openflow12_set_field(
+ const struct ofp12_action_set_field * oasf, struct ofpbuf *ofpacts);
enum ofperr nxm_reg_move_check(const struct ofpact_reg_move *,
const struct flow *);
--
1.7.1.1
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