const int hard_header = VLAN_ETH_HEADER_LEN;
const int mtu = netdev_get_mtu(p->netdev);
buffer = ofpbuf_new(headroom + hard_header + mtu);
- buffer->data += headroom;
+ buffer->data = (char*)buffer->data + headroom;
}
error = netdev_recv(p->netdev, buffer);
if (!error) {
veh = ofpbuf_push_uninit(buffer, VLAN_HEADER_LEN);
memcpy(veh, &tmp, sizeof tmp);
- buffer->l2 -= VLAN_HEADER_LEN;
+ buffer->l2 = (char*)buffer->l2 - VLAN_HEADER_LEN;
}
} else {
/* Remove an existing vlan header if it exists */
tmp.eth_type = veh->veth_next_type;
buffer->size -= VLAN_HEADER_LEN;
- buffer->data += VLAN_HEADER_LEN;
- buffer->l2 += VLAN_HEADER_LEN;
+ buffer->data = (char*)buffer->data + VLAN_HEADER_LEN;
+ buffer->l2 = (char*)buffer->l2 + VLAN_HEADER_LEN;
memcpy(buffer->data, &tmp, sizeof tmp);
}
}
}
struct stats_type {
+ /* Value for 'type' member of struct ofp_stats_request. */
+ int type;
+
/* Minimum and maximum acceptable number of bytes in body member of
* struct ofp_stats_request. */
size_t min_body, max_body;
};
static const struct stats_type stats[] = {
- [OFPST_DESC] = {
+ {
+ OFPST_DESC,
0,
0,
NULL,
desc_stats_dump,
NULL
},
- [OFPST_FLOW] = {
+ {
+ OFPST_FLOW,
sizeof(struct ofp_flow_stats_request),
sizeof(struct ofp_flow_stats_request),
flow_stats_init,
flow_stats_dump,
flow_stats_done
},
- [OFPST_AGGREGATE] = {
+ {
+ OFPST_AGGREGATE,
sizeof(struct ofp_aggregate_stats_request),
sizeof(struct ofp_aggregate_stats_request),
aggregate_stats_init,
aggregate_stats_dump,
aggregate_stats_done
},
- [OFPST_TABLE] = {
+ {
+ OFPST_TABLE,
0,
0,
NULL,
table_stats_dump,
NULL
},
- [OFPST_PORT] = {
+ {
+ OFPST_PORT,
0,
0,
port_stats_init,
osr = make_openflow_reply(sizeof *osr, OFPT_STATS_REPLY, &cb->sender,
&buffer);
- osr->type = htons(cb->s - stats);
+ osr->type = htons(cb->s->type);
osr->flags = 0;
err = cb->s->dump(dp, cb->state, buffer);
{
const struct ofp_stats_request *rq = oh;
size_t rq_len = ntohs(rq->header.length);
+ const struct stats_type *st;
struct stats_dump_cb *cb;
int type, body_len;
int err;
type = ntohs(rq->type);
- if (type >= ARRAY_SIZE(stats) || !stats[type].dump) {
- VLOG_WARN_RL(&rl, "received stats request of unknown type %d", type);
- return -EINVAL;
+ for (st = stats; ; st++) {
+ if (st >= &stats[ARRAY_SIZE(stats)]) {
+ VLOG_WARN_RL(&rl, "received stats request of unknown type %d",
+ type);
+ return -EINVAL;
+ } else if (type == st->type) {
+ break;
+ }
}
cb = xmalloc(sizeof *cb);
cb->done = false;
cb->rq = xmemdup(rq, rq_len);
cb->sender = *sender;
- cb->s = &stats[type];
+ cb->s = st;
cb->state = NULL;
body_len = rq_len - offsetof(struct ofp_stats_request, body);
fwd_control_input(struct datapath *dp, const struct sender *sender,
const void *msg, size_t length)
{
- struct openflow_packet {
- size_t min_size;
- int (*handler)(struct datapath *, const struct sender *, const void *);
- };
-
- static const struct openflow_packet packets[] = {
- [OFPT_FEATURES_REQUEST] = {
- sizeof (struct ofp_header),
- recv_features_request,
- },
- [OFPT_GET_CONFIG_REQUEST] = {
- sizeof (struct ofp_header),
- recv_get_config_request,
- },
- [OFPT_SET_CONFIG] = {
- sizeof (struct ofp_switch_config),
- recv_set_config,
- },
- [OFPT_PACKET_OUT] = {
- sizeof (struct ofp_packet_out),
- recv_packet_out,
- },
- [OFPT_FLOW_MOD] = {
- sizeof (struct ofp_flow_mod),
- recv_flow,
- },
- [OFPT_PORT_MOD] = {
- sizeof (struct ofp_port_mod),
- recv_port_mod,
- },
- [OFPT_STATS_REQUEST] = {
- sizeof (struct ofp_stats_request),
- recv_stats_request,
- },
- [OFPT_ECHO_REQUEST] = {
- sizeof (struct ofp_header),
- recv_echo_request,
- },
- [OFPT_ECHO_REPLY] = {
- sizeof (struct ofp_header),
- recv_echo_reply,
- },
- };
-
- const struct openflow_packet *pkt;
+ int (*handler)(struct datapath *, const struct sender *, const void *);
struct ofp_header *oh;
+ size_t min_size;
+ /* Check encapsulated length. */
oh = (struct ofp_header *) msg;
- assert(oh->version == OFP_VERSION);
- if (oh->type >= ARRAY_SIZE(packets) || ntohs(oh->length) > length)
+ if (ntohs(oh->length) > length) {
return -EINVAL;
+ }
+ assert(oh->version == OFP_VERSION);
- pkt = &packets[oh->type];
- if (!pkt->handler)
+ /* Figure out how to handle it. */
+ switch (oh->type) {
+ case OFPT_FEATURES_REQUEST:
+ min_size = sizeof(struct ofp_header);
+ handler = recv_features_request;
+ break;
+ case OFPT_GET_CONFIG_REQUEST:
+ min_size = sizeof(struct ofp_header);
+ handler = recv_get_config_request;
+ break;
+ case OFPT_SET_CONFIG:
+ min_size = sizeof(struct ofp_switch_config);
+ handler = recv_set_config;
+ break;
+ case OFPT_PACKET_OUT:
+ min_size = sizeof(struct ofp_packet_out);
+ handler = recv_packet_out;
+ break;
+ case OFPT_FLOW_MOD:
+ min_size = sizeof(struct ofp_flow_mod);
+ handler = recv_flow;
+ break;
+ case OFPT_PORT_MOD:
+ min_size = sizeof(struct ofp_port_mod);
+ handler = recv_port_mod;
+ break;
+ case OFPT_STATS_REQUEST:
+ min_size = sizeof(struct ofp_stats_request);
+ handler = recv_stats_request;
+ break;
+ case OFPT_ECHO_REQUEST:
+ min_size = sizeof(struct ofp_header);
+ handler = recv_echo_request;
+ break;
+ case OFPT_ECHO_REPLY:
+ min_size = sizeof(struct ofp_header);
+ handler = recv_echo_reply;
+ break;
+ default:
return -ENOSYS;
- if (length < pkt->min_size)
- return -EFAULT;
+ }
- return pkt->handler(dp, sender, msg);
+ /* Handle it. */
+ if (length < min_size)
+ return -EFAULT;
+ return handler(dp, sender, msg);
}
\f
/* Packet buffering. */
projects / openvswitch / blobdiff