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/*
* Copyright (c) 2009, 2010 Nicira Networks.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <config.h>
#include "odp-util.h"
#include <inttypes.h>
#include <stdlib.h>
#include <string.h>
#include "byte-order.h"
#include "coverage.h"
#include "dynamic-string.h"
#include "flow.h"
#include "netlink.h"
#include "packets.h"
#include "timeval.h"
#include "util.h"
void
format_odp_flow_key(struct ds *ds, const struct odp_flow_key *key)
{
ds_put_format(ds, "tun_id%#"PRIx64" in_port%d tci(",
ntohll(key->tun_id), key->in_port);
if (key->dl_tci) {
ds_put_format(ds, "vlan%"PRIu16",pcp%d",
vlan_tci_to_vid(key->dl_tci),
vlan_tci_to_pcp(key->dl_tci));
} else {
ds_put_char(ds, '0');
}
ds_put_format(ds, ") mac"ETH_ADDR_FMT"->"ETH_ADDR_FMT" type%04x "
"proto%"PRId8" tos%"PRIu8" ip"IP_FMT"->"IP_FMT" port%d->%d",
ETH_ADDR_ARGS(key->dl_src), ETH_ADDR_ARGS(key->dl_dst),
ntohs(key->dl_type), key->nw_proto, key->nw_tos,
IP_ARGS(&key->nw_src), IP_ARGS(&key->nw_dst),
ntohs(key->tp_src), ntohs(key->tp_dst));
}
int
odp_action_len(uint16_t type)
{
if (type > ODPAT_MAX) {
return -1;
}
switch ((enum odp_action_type) type) {
case ODPAT_OUTPUT: return 4;
case ODPAT_CONTROLLER: return 8;
case ODPAT_SET_DL_TCI: return 2;
case ODPAT_STRIP_VLAN: return 0;
case ODPAT_SET_DL_SRC: return ETH_ADDR_LEN;
case ODPAT_SET_DL_DST: return ETH_ADDR_LEN;
case ODPAT_SET_NW_SRC: return 4;
case ODPAT_SET_NW_DST: return 4;
case ODPAT_SET_NW_TOS: return 1;
case ODPAT_SET_TP_SRC: return 2;
case ODPAT_SET_TP_DST: return 2;
case ODPAT_SET_TUNNEL: return 8;
case ODPAT_SET_PRIORITY: return 4;
case ODPAT_POP_PRIORITY: return 0;
case ODPAT_DROP_SPOOFED_ARP: return 0;
case ODPAT_UNSPEC:
case __ODPAT_MAX:
return -1;
}
return -1;
}
static void
format_generic_odp_action(struct ds *ds, const struct nlattr *a)
{
ds_put_format(ds, "action%"PRId16, nl_attr_type(a));
if (a->nla_len) {
const uint8_t *unspec;
unsigned int i;
unspec = nl_attr_get(a);
for (i = 0; i < a->nla_len; i++) {
ds_put_char(ds, i ? ' ': '(');
ds_put_format(ds, "%02x", unspec[i]);
}
ds_put_char(ds, ')');
}
}
void
format_odp_action(struct ds *ds, const struct nlattr *a)
{
const uint8_t *eth;
ovs_be32 ip;
if (nl_attr_get_size(a) != odp_action_len(a->nla_len)) {
ds_put_format(ds, "***bad action: length is %zu, expected %d*** ",
nl_attr_get_size(a), odp_action_len(a->nla_len));
format_generic_odp_action(ds, a);
return;
}
switch (nl_attr_type(a)) {
case ODPAT_OUTPUT:
ds_put_format(ds, "%"PRIu16, nl_attr_get_u32(a));
break;
case ODPAT_CONTROLLER:
ds_put_format(ds, "ctl(%"PRIu64")", nl_attr_get_u64(a));
break;
case ODPAT_SET_TUNNEL:
ds_put_format(ds, "set_tunnel(%#"PRIx64")",
ntohll(nl_attr_get_be64(a)));
break;
case ODPAT_SET_DL_TCI:
ds_put_format(ds, "set_tci(vid=%"PRIu16",pcp=%d)",
vlan_tci_to_vid(nl_attr_get_be16(a)),
vlan_tci_to_pcp(nl_attr_get_be16(a)));
break;
case ODPAT_STRIP_VLAN:
ds_put_format(ds, "strip_vlan");
break;
case ODPAT_SET_DL_SRC:
eth = nl_attr_get_unspec(a, ETH_ADDR_LEN);
ds_put_format(ds, "set_dl_src("ETH_ADDR_FMT")", ETH_ADDR_ARGS(eth));
break;
case ODPAT_SET_DL_DST:
eth = nl_attr_get_unspec(a, ETH_ADDR_LEN);
ds_put_format(ds, "set_dl_dst("ETH_ADDR_FMT")", ETH_ADDR_ARGS(eth));
break;
case ODPAT_SET_NW_SRC:
ip = nl_attr_get_be32(a);
ds_put_format(ds, "set_nw_src("IP_FMT")", IP_ARGS(&ip));
break;
case ODPAT_SET_NW_DST:
ip = nl_attr_get_be32(a);
ds_put_format(ds, "set_nw_dst("IP_FMT")", IP_ARGS(&ip));
break;
case ODPAT_SET_NW_TOS:
ds_put_format(ds, "set_nw_tos(%"PRIu8")", nl_attr_get_u8(a));
break;
case ODPAT_SET_TP_SRC:
ds_put_format(ds, "set_tp_src(%"PRIu16")", ntohs(nl_attr_get_be16(a)));
break;
case ODPAT_SET_TP_DST:
ds_put_format(ds, "set_tp_dst(%"PRIu16")", ntohs(nl_attr_get_be16(a)));
break;
case ODPAT_SET_PRIORITY:
ds_put_format(ds, "set_priority(%#"PRIx32")", nl_attr_get_u32(a));
break;
case ODPAT_POP_PRIORITY:
ds_put_cstr(ds, "pop_priority");
break;
case ODPAT_DROP_SPOOFED_ARP:
ds_put_cstr(ds, "drop_spoofed_arp");
break;
default:
format_generic_odp_action(ds, a);
break;
}
}
void
format_odp_actions(struct ds *ds, const struct nlattr *actions,
size_t actions_len)
{
if (actions_len) {
const struct nlattr *a;
unsigned int left;
NL_ATTR_FOR_EACH (a, left, actions, actions_len) {
if (a != actions) {
ds_put_char(ds, ',');
}
format_odp_action(ds, a);
}
if (left) {
ds_put_format(ds, " ***%u leftover bytes***", left);
}
} else {
ds_put_cstr(ds, "drop");
}
}
void
format_odp_flow_stats(struct ds *ds, const struct odp_flow_stats *s)
{
ds_put_format(ds, "packets:%llu, bytes:%llu, used:",
(unsigned long long int) s->n_packets,
(unsigned long long int) s->n_bytes);
if (s->used_sec) {
long long int used = s->used_sec * 1000 + s->used_nsec / 1000000;
ds_put_format(ds, "%.3fs", (time_msec() - used) / 1000.0);
} else {
ds_put_format(ds, "never");
}
}
void
format_odp_flow(struct ds *ds, const struct odp_flow *f)
{
format_odp_flow_key(ds, &f->key);
ds_put_cstr(ds, ", ");
format_odp_flow_stats(ds, &f->stats);
ds_put_cstr(ds, ", actions:");
format_odp_actions(ds, f->actions, f->actions_len);
}
void
odp_flow_key_from_flow(struct odp_flow_key *key, const struct flow *flow)
{
key->tun_id = flow->tun_id;
key->nw_src = flow->nw_src;
key->nw_dst = flow->nw_dst;
key->in_port = flow->in_port;
key->dl_tci = flow->vlan_tci;
key->dl_type = flow->dl_type;
key->tp_src = flow->tp_src;
key->tp_dst = flow->tp_dst;
memcpy(key->dl_src, flow->dl_src, ETH_ADDR_LEN);
memcpy(key->dl_dst, flow->dl_dst, ETH_ADDR_LEN);
key->nw_proto = flow->nw_proto;
key->nw_tos = flow->nw_tos;
}
void
odp_flow_key_to_flow(const struct odp_flow_key *key, struct flow *flow)
{
memset(flow->regs, 0, sizeof flow->regs);
flow->tun_id = key->tun_id;
flow->nw_src = key->nw_src;
flow->nw_dst = key->nw_dst;
flow->in_port = key->in_port;
flow->vlan_tci = key->dl_tci;
flow->dl_type = key->dl_type;
flow->tp_src = key->tp_src;
flow->tp_dst = key->tp_dst;
memcpy(flow->dl_src, key->dl_src, ETH_ADDR_LEN);
memcpy(flow->dl_dst, key->dl_dst, ETH_ADDR_LEN);
flow->nw_proto = key->nw_proto;
flow->nw_tos = key->nw_tos;
}
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