struct ofpbuf *
flow_mod_match_conj(enum ofputil_protocol proto)
{
struct ofputil_flow_mod fm;
struct ofpbuf acts;
struct ofpact_ipv4 *a_set_field;
struct ofpact_goto_table *a_goto;
memset(&fm, 0, sizeof(fm));
fm.command = OFPFC_ADD;
fm.table_id = 3;
fm.new_cookie = htonll(0x123456789abcdef0);
fm.cookie_mask = OVS_BE64_MAX;
fm.importance = 0x9878;
match_init_catchall(&fm.match);
match_set_conj_id(&fm.match, 0xabcdef);
ofpbuf_init(&acts, 64);
ofpact_put_STRIP_VLAN(&acts);
a_set_field = ofpact_put_SET_IPV4_DST(&acts);
a_set_field->ipv4 = inet_addr("192.168.2.9");
a_goto = ofpact_put_GOTO_TABLE(&acts);
a_goto->table_id = 100;
fm.ofpacts = acts.data;
fm.ofpacts_len = acts.size;
return ofputil_encode_flow_mod(&fm, proto);
}
static void
parse_named_instruction(enum ovs_instruction_type type,
char *arg, struct ofpbuf *ofpacts)
{
enum ofperr error;
switch (type) {
case OVSINST_OFPIT11_APPLY_ACTIONS:
NOT_REACHED(); /* This case is handled by str_to_inst_ofpacts() */
break;
case OVSINST_OFPIT11_WRITE_ACTIONS:
/* XXX */
ovs_fatal(0, "instruction write-actions is not supported yet");
break;
case OVSINST_OFPIT11_CLEAR_ACTIONS:
ofpact_put_CLEAR_ACTIONS(ofpacts);
break;
case OVSINST_OFPIT13_METER:
ofpact_put_METER(ofpacts)->meter_id = str_to_u32(arg);
break;
case OVSINST_OFPIT11_WRITE_METADATA:
parse_metadata(ofpacts, arg);
break;
case OVSINST_OFPIT11_GOTO_TABLE: {
struct ofpact_goto_table *ogt = ofpact_put_GOTO_TABLE(ofpacts);
char *table_s = strsep(&arg, ",");
if (!table_s || !table_s[0]) {
ovs_fatal(0, "instruction goto-table needs table id");
}
ogt->table_id = str_to_u8(table_s, "table");
break;
}
}
/* If write_metadata is specified as an action AND an instruction, ofpacts
could be invalid. */
error = ofpacts_verify(ofpacts->data, ofpacts->size);
if (error) {
ovs_fatal(0, "Incorrect instruction ordering");
}
}
struct ofpbuf *
flow_mod(enum ofputil_protocol proto)
{
struct ofputil_flow_mod fm;
struct ofpbuf acts;
struct ofpact_ipv4 *a_set_field;
struct ofpact_goto_table *a_goto;
char *error;
/*
* Taken from neutron OVS-agent,
* modified for OF>=1.3. (NXM -> OXM)
* NOTE(yamamoto): This needs to be writable. learn_parse() modifies it.
*/
char learn_args[] =
"table=99,"
"priority=1,"
"hard_timeout=300,"
"OXM_OF_VLAN_VID[0..11],"
"OXM_OF_ETH_DST[]=OXM_OF_ETH_SRC[],"
"load:0->OXM_OF_VLAN_VID[],"
"load:OXM_OF_TUNNEL_ID[]->OXM_OF_TUNNEL_ID[],"
"output:OXM_OF_IN_PORT[]";
memset(&fm, 0, sizeof(fm));
fm.command = OFPFC_ADD;
fm.table_id = 2;
fm.new_cookie = htonll(0x123456789abcdef0);
fm.cookie_mask = OVS_BE64_MAX;
fm.importance = 0x9878;
fill_match(&fm.match);
ofpbuf_init(&acts, 64);
ofpact_put_STRIP_VLAN(&acts);
a_set_field = ofpact_put_SET_IPV4_DST(&acts);
a_set_field->ipv4 = inet_addr("192.168.2.9");
error = learn_parse(learn_args, &acts);
assert(error == NULL);
a_goto = ofpact_put_GOTO_TABLE(&acts);
a_goto->table_id = 100;
fm.ofpacts = acts.data;
fm.ofpacts_len = acts.size;
return ofputil_encode_flow_mod(&fm, proto);
}
void act_go(struct ofpbuf* buf, uint8_t tableId) {
struct ofpact_goto_table *goTab = ofpact_put_GOTO_TABLE(buf);
goTab->table_id = tableId;
}
