lib/odp-util.c

   1 /*
   2  * Copyright (c) 2009, 2010 Nicira Networks.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at:
   7  *
   8  *     http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 #include <config.h>
  18 #include "odp-util.h"
  19 #include <inttypes.h>
  20 #include <stdlib.h>
  21 #include <string.h>
  22 #include "coverage.h"
  23 #include "dynamic-string.h"
  24 #include "flow.h"
  25 #include "packets.h"
  26 #include "timeval.h"
  27 #include "util.h"
  28
  29 union odp_action *
  30 odp_actions_add(struct odp_actions *actions, uint16_t type)
  31 {
  32     union odp_action *a;
  33     size_t idx;
  34
  35     idx = actions->n_actions++ & (MAX_ODP_ACTIONS - 1);
  36     a = &actions->actions[idx];
  37     memset(a, 0, sizeof *a);
  38     a->type = type;
  39     return a;
  40 }
  41
  42 void
  43 format_odp_flow_key(struct ds *ds, const struct odp_flow_key *key)
  44 {
  45     ds_put_format(ds, "in_port%04x:vlan%d:pcp%d mac"ETH_ADDR_FMT
  46                   "->"ETH_ADDR_FMT" type%04x proto%"PRId8" tos%"PRIu8
  47                   " ip"IP_FMT"->"IP_FMT" port%d->%d",
  48                   key->in_port, ntohs(key->dl_vlan), key->dl_vlan_pcp,
  49                   ETH_ADDR_ARGS(key->dl_src), ETH_ADDR_ARGS(key->dl_dst),
  50                   ntohs(key->dl_type), key->nw_proto, key->nw_tos,
  51                   IP_ARGS(&key->nw_src), IP_ARGS(&key->nw_dst),
  52                   ntohs(key->tp_src), ntohs(key->tp_dst));
  53 }
  54
  55 void
  56 format_odp_action(struct ds *ds, const union odp_action *a)
  57 {
  58     switch (a->type) {
  59     case ODPAT_OUTPUT:
  60         ds_put_format(ds, "%"PRIu16, a->output.port);
  61         break;
  62     case ODPAT_CONTROLLER:
  63         ds_put_format(ds, "ctl(%"PRIu32")", a->controller.arg);
  64         break;
  65     case ODPAT_SET_TUNNEL:
  66         ds_put_format(ds, "set_tunnel(0x%08"PRIx32")", ntohl(a->tunnel.tun_id));
  67         break;
  68     case ODPAT_SET_VLAN_VID:
  69         ds_put_format(ds, "set_vlan(%"PRIu16")", ntohs(a->vlan_vid.vlan_vid));
  70         break;
  71     case ODPAT_SET_VLAN_PCP:
  72         ds_put_format(ds, "set_vlan_pcp(%"PRIu8")", a->vlan_pcp.vlan_pcp);
  73         break;
  74     case ODPAT_STRIP_VLAN:
  75         ds_put_format(ds, "strip_vlan");
  76         break;
  77     case ODPAT_SET_DL_SRC:
  78         ds_put_format(ds, "set_dl_src("ETH_ADDR_FMT")",
  79                ETH_ADDR_ARGS(a->dl_addr.dl_addr));
  80         break;
  81     case ODPAT_SET_DL_DST:
  82         ds_put_format(ds, "set_dl_dst("ETH_ADDR_FMT")",
  83                ETH_ADDR_ARGS(a->dl_addr.dl_addr));
  84         break;
  85     case ODPAT_SET_NW_SRC:
  86         ds_put_format(ds, "set_nw_src("IP_FMT")",
  87                       IP_ARGS(&a->nw_addr.nw_addr));
  88         break;
  89     case ODPAT_SET_NW_DST:
  90         ds_put_format(ds, "set_nw_dst("IP_FMT")",
  91                       IP_ARGS(&a->nw_addr.nw_addr));
  92         break;
  93     case ODPAT_SET_NW_TOS:
  94         ds_put_format(ds, "set_nw_tos(%"PRIu8")", a->nw_tos.nw_tos);
  95         break;
  96     case ODPAT_SET_TP_SRC:
  97         ds_put_format(ds, "set_tp_src(%"PRIu16")", ntohs(a->tp_port.tp_port));
  98         break;
  99     case ODPAT_SET_TP_DST:
 100         ds_put_format(ds, "set_tp_dst(%"PRIu16")", ntohs(a->tp_port.tp_port));
 101         break;
 102     case ODPAT_SET_PRIORITY:
 103         ds_put_format(ds, "set_priority(0x%"PRIx32")", a->priority.priority);
 104         break;
 105     case ODPAT_POP_PRIORITY:
 106         ds_put_cstr(ds, "pop_priority");
 107         break;
 108     case ODPAT_DROP_SPOOFED_ARP:
 109         ds_put_cstr(ds, "drop_spoofed_arp");
 110         break;
 111     default:
 112         ds_put_format(ds, "***bad action 0x%"PRIx16"***", a->type);
 113         break;
 114     }
 115 }
 116
 117 void
 118 format_odp_actions(struct ds *ds, const union odp_action *actions,
 119                    size_t n_actions)
 120 {
 121     size_t i;
 122     for (i = 0; i < n_actions; i++) {
 123         if (i) {
 124             ds_put_char(ds, ',');
 125         }
 126         format_odp_action(ds, &actions[i]);
 127     }
 128     if (!n_actions) {
 129         ds_put_cstr(ds, "drop");
 130     }
 131 }
 132
 133 void
 134 format_odp_flow_stats(struct ds *ds, const struct odp_flow_stats *s)
 135 {
 136     ds_put_format(ds, "packets:%llu, bytes:%llu, used:",
 137                   (unsigned long long int) s->n_packets,
 138                   (unsigned long long int) s->n_bytes);
 139     if (s->used_sec) {
 140         long long int used = s->used_sec * 1000 + s->used_nsec / 1000000;
 141         ds_put_format(ds, "%.3fs", (time_msec() - used) / 1000.0);
 142     } else {
 143         ds_put_format(ds, "never");
 144     }
 145 }
 146
 147 void
 148 format_odp_flow(struct ds *ds, const struct odp_flow *f)
 149 {
 150     format_odp_flow_key(ds, &f->key);
 151     ds_put_cstr(ds, ", ");
 152     format_odp_flow_stats(ds, &f->stats);
 153     ds_put_cstr(ds, ", actions:");
 154     format_odp_actions(ds, f->actions, f->n_actions);
 155 }
 156 \f
 157 void
 158 odp_flow_key_from_flow(struct odp_flow_key *key, const struct flow *flow)
 159 {
 160     key->tun_id = flow->tun_id;
 161     key->nw_src = flow->nw_src;
 162     key->nw_dst = flow->nw_dst;
 163     key->in_port = flow->in_port;
 164     key->dl_vlan = flow->dl_vlan;
 165     key->dl_type = flow->dl_type;
 166     key->tp_src = flow->tp_src;
 167     key->tp_dst = flow->tp_dst;
 168     memcpy(key->dl_src, flow->dl_src, ETH_ADDR_LEN);
 169     memcpy(key->dl_dst, flow->dl_dst, ETH_ADDR_LEN);
 170     key->nw_proto = flow->nw_proto;
 171     key->dl_vlan_pcp = flow->dl_vlan_pcp;
 172     key->nw_tos = flow->nw_tos;
 173     memset(key->reserved, 0, sizeof key->reserved);
 174 }
 175
 176 void
 177 odp_flow_key_to_flow(const struct odp_flow_key *key, struct flow *flow)
 178 {
 179     flow->tun_id = key->tun_id;
 180     flow->nw_src = key->nw_src;
 181     flow->nw_dst = key->nw_dst;
 182     flow->in_port = key->in_port;
 183     flow->dl_vlan = key->dl_vlan;
 184     flow->dl_type = key->dl_type;
 185     flow->tp_src = key->tp_src;
 186     flow->tp_dst = key->tp_dst;
 187     memcpy(flow->dl_src, key->dl_src, ETH_ADDR_LEN);
 188     memcpy(flow->dl_dst, key->dl_dst, ETH_ADDR_LEN);
 189     flow->nw_proto = key->nw_proto;
 190     flow->dl_vlan_pcp = key->dl_vlan_pcp;
 191     flow->nw_tos = key->nw_tos;
 192 }