return send_openflow_skb(skb, NULL);
}
+static void
+fill_flow_stats(struct ofp_flow_stats *ofs, struct sw_flow *flow,
+ int table_idx)
+{
+ int duration;
+
+ ofs->match.wildcards = htons(flow->key.wildcards);
+ ofs->match.in_port = flow->key.in_port;
+ memcpy(ofs->match.dl_src, flow->key.dl_src, ETH_ALEN);
+ memcpy(ofs->match.dl_dst, flow->key.dl_dst, ETH_ALEN);
+ ofs->match.dl_vlan = flow->key.dl_vlan;
+ ofs->match.dl_type = flow->key.dl_type;
+ ofs->match.nw_src = flow->key.nw_src;
+ ofs->match.nw_dst = flow->key.nw_dst;
+ ofs->match.nw_proto = flow->key.nw_proto;
+ memset(ofs->match.pad, 0, sizeof ofs->match.pad);
+ ofs->match.tp_src = flow->key.tp_src;
+ ofs->match.tp_dst = flow->key.tp_dst;
+ duration = (jiffies - flow->init_time) / HZ;
+ ofs->duration = htons(min(65535, duration));
+ ofs->table_id = htons(table_idx);
+ ofs->packet_count = cpu_to_be64(flow->packet_count);
+ ofs->byte_count = cpu_to_be64(flow->byte_count);
+}
+
+int
+dp_send_flow_stats(struct datapath *dp, const struct sender *sender,
+ const struct ofp_match *match)
+{
+ struct sk_buff *skb;
+ struct ofp_flow_stat_reply *fsr;
+ size_t header_size, fudge, flow_size;
+ struct sw_flow_key match_key;
+ int table_idx, n_flows, max_flows;
+
+ header_size = offsetof(struct ofp_flow_stat_reply, flows);
+ fudge = 128;
+ flow_size = sizeof fsr->flows[0];
+ max_flows = (NLMSG_GOODSIZE - header_size - fudge) / flow_size;
+ fsr = alloc_openflow_skb(dp, header_size + max_flows * flow_size,
+ OFPT_FLOW_STAT_REPLY, sender, &skb);
+ if (!fsr)
+ return -ENOMEM;
+
+ n_flows = 0;
+ flow_extract_match(&match_key, match);
+ for (table_idx = 0; table_idx < dp->chain->n_tables; table_idx++) {
+ struct sw_table *table = dp->chain->tables[table_idx];
+ struct swt_iterator iter;
+
+ if (n_flows >= max_flows) {
+ break;
+ }
+
+ if (!table->iterator(table, &iter)) {
+ if (net_ratelimit())
+ printk("iterator failed for table %d\n",
+ table_idx);
+ continue;
+ }
+
+ for (; iter.flow; table->iterator_next(&iter)) {
+ if (flow_matches(&match_key, &iter.flow->key)) {
+ fill_flow_stats(&fsr->flows[n_flows],
+ iter.flow, table_idx);
+ if (++n_flows >= max_flows) {
+ break;
+ }
+ }
+ }
+ table->iterator_destroy(&iter);
+ }
+ resize_openflow_skb(skb, &fsr->header,
+ header_size + flow_size * n_flows);
+ return send_openflow_skb(skb, sender);
+}
+
+static int
+fill_port_stat_reply(struct datapath *dp, struct ofp_port_stat_reply *psr)
+{
+ struct net_bridge_port *p;
+ int port_count = 0;
+
+ list_for_each_entry_rcu (p, &dp->port_list, node) {
+ struct ofp_port_stats *ps = &psr->ports[port_count++];
+ struct net_device_stats *stats = p->dev->get_stats(p->dev);
+ ps->port_no = htons(p->port_no);
+ memset(ps->pad, 0, sizeof ps->pad);
+ ps->rx_count = cpu_to_be64(stats->rx_packets);
+ ps->tx_count = cpu_to_be64(stats->tx_packets);
+ ps->drop_count = cpu_to_be64(stats->rx_dropped
+ + stats->tx_dropped);
+ }
+
+ return port_count;
+}
+
+int
+dp_send_port_stats(struct datapath *dp, const struct sender *sender)
+{
+ struct sk_buff *skb;
+ struct ofp_port_stat_reply *psr;
+ size_t psr_len, port_max_len;
+ int port_count;
+
+ /* Overallocate. */
+ port_max_len = sizeof(struct ofp_port_stats) * OFPP_MAX;
+ psr = alloc_openflow_skb(dp, sizeof *psr + port_max_len,
+ OFPT_PORT_STAT_REPLY, sender, &skb);
+ if (!psr)
+ return -ENOMEM;
+
+ /* Fill. */
+ port_count = fill_port_stat_reply(dp, psr);
+
+ /* Shrink to fit. */
+ psr_len = sizeof *psr + sizeof(struct ofp_port_stats) * port_count;
+ resize_openflow_skb(skb, &psr->header, psr_len);
+ return send_openflow_skb(skb, sender);
+}
+
+int
+dp_send_table_stats(struct datapath *dp, const struct sender *sender)
+{
+ struct sk_buff *skb;
+ struct ofp_table_stat_reply *tsr;
+ int i, n_tables;
+
+ n_tables = dp->chain->n_tables;
+ tsr = alloc_openflow_skb(dp, (offsetof(struct ofp_table_stat_reply,
+ tables)
+ + sizeof tsr->tables[0] * n_tables),
+ OFPT_TABLE_STAT_REPLY, sender, &skb);
+ if (!tsr)
+ return -ENOMEM;
+ for (i = 0; i < n_tables; i++) {
+ struct ofp_table_stats *ots = &tsr->tables[i];
+ struct sw_table_stats stats;
+ dp->chain->tables[i]->stats(dp->chain->tables[i], &stats);
+ strncpy(ots->name, stats.name, sizeof ots->name);
+ ots->table_id = htons(i);
+ ots->pad[0] = ots->pad[1] = 0;
+ ots->max_entries = htonl(stats.max_flows);
+ ots->active_count = htonl(stats.n_flows);
+ ots->matched_count = cpu_to_be64(0); /* FIXME */
+ }
+ return send_openflow_skb(skb, sender);
+}
+
/* Generic Netlink interface.
*
* See netlink(7) for an introduction to netlink. See
return err;
}
-/*
- * Fill flow entry for nl flow query. Called with rcu_lock
- *
- */
-static
-int
-dp_fill_flow(struct ofp_flow_mod* ofm, struct swt_iterator* iter)
-{
- ofm->header.version = OFP_VERSION;
- ofm->header.type = OFPT_FLOW_MOD;
- ofm->header.length = htons(sizeof(struct ofp_flow_mod)
- + sizeof(ofm->actions[0]));
- ofm->header.xid = htonl(0);
-
- ofm->match.wildcards = htons(iter->flow->key.wildcards);
- ofm->match.in_port = iter->flow->key.in_port;
- ofm->match.dl_vlan = iter->flow->key.dl_vlan;
- memcpy(ofm->match.dl_src, iter->flow->key.dl_src, ETH_ALEN);
- memcpy(ofm->match.dl_dst, iter->flow->key.dl_dst, ETH_ALEN);
- ofm->match.dl_type = iter->flow->key.dl_type;
- ofm->match.nw_src = iter->flow->key.nw_src;
- ofm->match.nw_dst = iter->flow->key.nw_dst;
- ofm->match.nw_proto = iter->flow->key.nw_proto;
- ofm->match.tp_src = iter->flow->key.tp_src;
- ofm->match.tp_dst = iter->flow->key.tp_dst;
- ofm->group_id = iter->flow->group_id;
- ofm->max_idle = iter->flow->max_idle;
- /* TODO support multiple actions */
- ofm->actions[0] = iter->flow->actions[0];
-
- return 0;
-}
-
-/* Convenience function */
-static
-void*
-dp_init_nl_flow_msg(uint32_t dp_idx, uint16_t table_idx,
- struct genl_info *info, struct sk_buff* skb)
-{
- void* data;
-
- data = genlmsg_put_reply(skb, info, &dp_genl_family, 0,
- DP_GENL_C_QUERY_FLOW);
- if (data == NULL)
- return NULL;
- NLA_PUT_U32(skb, DP_GENL_A_DP_IDX, dp_idx);
- NLA_PUT_U16(skb, DP_GENL_A_TABLEIDX, table_idx);
-
- return data;
-
-nla_put_failure:
- return NULL;
-}
-
-/* Iterate through the specified table and send all flow entries over
- * netlink to userspace. Each flow message has the following format:
- *
- * 32bit dpix
- * 16bit tabletype
- * 32bit number of flows
- * openflow-flow-entries
- *
- * The full table may require multiple messages. A message with 0 flows
- * signifies end-of message.
- */
-
-static
-int
-dp_dump_table(struct datapath *dp, uint16_t table_idx, struct genl_info *info, struct ofp_flow_mod* matchme)
-{
- struct sk_buff *skb = 0;
- struct sw_table *table = 0;
- struct swt_iterator iter;
- struct sw_flow_key in_flow;
- struct nlattr *attr;
- int count = 0, sum_count = 0;
- void *data;
- uint8_t* ofm_ptr = 0;
- struct nlattr *num_attr;
- int err = -ENOMEM;
-
- table = dp->chain->tables[table_idx];
- if ( table == NULL ) {
- dprintk("dp::dp_dump_table error, non-existant table at position %d\n", table_idx);
- return -EINVAL;
- }
-
- if (!table->iterator(table, &iter)) {
- dprintk("dp::dp_dump_table couldn't initialize empty table iterator\n");
- return -ENOMEM;
- }
-
- while (iter.flow) {
-
- /* verify that we can fit all NL_FLOWS_PER_MESSAGE in a single
- * sk_buf */
- if( (sizeof(dp_genl_family) + sizeof(uint32_t) + sizeof(uint16_t) + sizeof(uint32_t) +
- (NL_FLOWS_PER_MESSAGE * sizeof(struct ofp_flow_mod))) > (8192 - 64)){
- dprintk("dp::dp_dump_table NL_FLOWS_PER_MESSAGE may cause overrun in skbuf\n");
- return -ENOMEM;
- }
-
- skb = nlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC);
- if (skb == NULL) {
- return -ENOMEM;
- }
-
- data = dp_init_nl_flow_msg(dp->dp_idx, table_idx, info, skb);
- if (data == NULL){
- err= -ENOMEM;
- goto error_free_skb;
- }
-
- /* reserve space to put the number of flows for this message, to
- * be filled after the loop*/
- num_attr = nla_reserve(skb, DP_GENL_A_NUMFLOWS, sizeof(uint32_t));
- if(!num_attr){
- err = -ENOMEM;
- goto error_free_skb;
- }
-
- /* Only load NL_FLOWS_PER_MESSAGE flows at a time */
- attr = nla_reserve(skb, DP_GENL_A_FLOW,
- (sizeof(struct ofp_flow_mod) + sizeof(struct ofp_action)) * NL_FLOWS_PER_MESSAGE);
- if (!attr){
- err = -ENOMEM;
- goto error_free_skb;
- }
-
- /* internal loop to fill NL_FLOWS_PER_MESSAGE flows */
- ofm_ptr = nla_data(attr);
- flow_extract_match(&in_flow, &matchme->match);
- while (iter.flow && count < NL_FLOWS_PER_MESSAGE) {
- if(flow_matches(&in_flow, &iter.flow->key)){
- if((err = dp_fill_flow((struct ofp_flow_mod*)ofm_ptr, &iter)))
- goto error_free_skb;
- count++;
- /* TODO support multiple actions */
- ofm_ptr += sizeof(struct ofp_flow_mod) + sizeof(struct ofp_action);
- }
- table->iterator_next(&iter);
- }
-
- *((uint32_t*)nla_data(num_attr)) = count;
- genlmsg_end(skb, data);
-
- sum_count += count;
- count = 0;
-
- err = genlmsg_unicast(skb, info->snd_pid);
- skb = 0;
- }
-
- /* send a sentinal message saying we're done */
- skb = nlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC);
- if (skb == NULL) {
- return -ENOMEM;
- }
- data = dp_init_nl_flow_msg(dp->dp_idx, table_idx, info, skb);
- if (data == NULL){
- err= -ENOMEM;
- goto error_free_skb;
- }
-
- NLA_PUT_U32(skb, DP_GENL_A_NUMFLOWS, 0);
- /* dummy flow so nl doesn't complain */
- attr = nla_reserve(skb, DP_GENL_A_FLOW, sizeof(struct ofp_flow_mod));
- if (!attr){
- err = -ENOMEM;
- goto error_free_skb;
- }
- genlmsg_end(skb, data);
- err = genlmsg_reply(skb, info); skb = 0;
-
-nla_put_failure:
-error_free_skb:
- if(skb)
- kfree_skb(skb);
- return err;
-}
-
-/* Helper function to query_table which creates and sends a message packed with
- * table stats. Message form is:
- *
- * u32 DP_IDX
- * u32 NUM_TABLES
- * OFP_TABLE (list of OFP_TABLES)
- *
- */
-
-static
-int
-dp_dump_table_stats(struct datapath *dp, int dp_idx, struct genl_info *info)
-{
- struct sk_buff *skb = 0;
- struct ofp_table *ot = 0;
- struct nlattr *attr;
- struct sw_table_stats stats;
- size_t len;
- void *data;
- int err = -ENOMEM;
- int i = 0;
- int nt = dp->chain->n_tables;
-
- len = 4 + 4 + (sizeof(struct ofp_table) * nt);
-
- /* u32 IDX, u32 NUMTABLES, list-of-tables */
- skb = nlmsg_new(MAX(len, NLMSG_GOODSIZE), GFP_ATOMIC);
- if (skb == NULL) {
- return -ENOMEM;
- }
-
- data = genlmsg_put_reply(skb, info, &dp_genl_family, 0,
- DP_GENL_C_QUERY_TABLE);
- if (data == NULL){
- return -ENOMEM;
- }
-
- NLA_PUT_U32(skb, DP_GENL_A_DP_IDX, dp_idx);
- NLA_PUT_U32(skb, DP_GENL_A_NUMTABLES, nt);
-
- /* ... we assume that all tables can fit in a single message.
- * Probably a reasonable assumption seeing that we only have
- * 3 atm */
- attr = nla_reserve(skb, DP_GENL_A_TABLE, (sizeof(struct ofp_table) * nt));
- if (!attr){
- err = -ENOMEM;
- goto error_free_skb;
- }
-
- ot = nla_data(attr);
-
- for (i = 0; i < nt; ++i) {
- dp->chain->tables[i]->stats(dp->chain->tables[i], &stats);
- ot->header.version = OFP_VERSION;
- ot->header.type = OFPT_TABLE;
- ot->header.length = htons(sizeof(struct ofp_table));
- ot->header.xid = htonl(0);
-
- strncpy(ot->name, stats.name, OFP_MAX_TABLE_NAME_LEN);
- ot->table_id = htons(i);
- ot->n_flows = htonl(stats.n_flows);
- ot->max_flows = htonl(stats.max_flows);
- ot++;
- }
-
- genlmsg_end(skb, data);
- err = genlmsg_reply(skb, info); skb = 0;
-
-nla_put_failure:
-error_free_skb:
- if(skb)
- kfree_skb(skb);
- return err;
-}
-
-/*
- * Queries a datapath for flow-table statistics
- */
-
-
-static int dp_genl_table_query(struct sk_buff *skb, struct genl_info *info)
-{
- struct datapath* dp;
- int err = 0;
-
- if (!info->attrs[DP_GENL_A_DP_IDX]) {
- dprintk("dp::dp_genl_table_query received message with missing attributes\n");
- return -EINVAL;
- }
-
- rcu_read_lock();
- dp = dp_get(nla_get_u32(info->attrs[DP_GENL_A_DP_IDX]));
- if (!dp) {
- err = -ENOENT;
- goto err_out;
- }
-
- err = dp_dump_table_stats(dp, nla_get_u32(info->attrs[DP_GENL_A_DP_IDX]), info);
-
-err_out:
- rcu_read_unlock();
- return err;
-}
-
-/*
- * Queries a datapath for flow-table entries.
- */
-
-static int dp_genl_flow_query(struct sk_buff *skb, struct genl_info *info)
-{
- struct datapath* dp;
- struct ofp_flow_mod* ofm;
- u16 table_idx;
- int err = 0;
-
- if (!info->attrs[DP_GENL_A_DP_IDX]
- || !info->attrs[DP_GENL_A_TABLEIDX]
- || !info->attrs[DP_GENL_A_FLOW]) {
- dprintk("dp::dp_genl_flow_query received message with missing attributes\n");
- return -EINVAL;
- }
-
- rcu_read_lock();
- dp = dp_get(nla_get_u32(info->attrs[DP_GENL_A_DP_IDX]));
- if (!dp) {
- err = -ENOENT;
- goto err_out;
- }
-
- table_idx = nla_get_u16(info->attrs[DP_GENL_A_TABLEIDX]);
-
- if (dp->chain->n_tables <= table_idx){
- printk("table index %d invalid (dp has %d tables)\n",
- table_idx, dp->chain->n_tables);
- err = -EINVAL;
- goto err_out;
- }
-
- ofm = nla_data(info->attrs[DP_GENL_A_FLOW]);
- err = dp_dump_table(dp, table_idx, info, ofm);
-
-err_out:
- rcu_read_unlock();
- return err;
-}
-
-static struct nla_policy dp_genl_flow_policy[DP_GENL_A_MAX + 1] = {
- [DP_GENL_A_DP_IDX] = { .type = NLA_U32 },
- [DP_GENL_A_TABLEIDX] = { .type = NLA_U16 },
- [DP_GENL_A_NUMFLOWS] = { .type = NLA_U32 },
-};
-
-static struct genl_ops dp_genl_ops_query_flow = {
- .cmd = DP_GENL_C_QUERY_FLOW,
- .flags = GENL_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
- .policy = dp_genl_flow_policy,
- .doit = dp_genl_flow_query,
- .dumpit = NULL,
-};
-
-static struct nla_policy dp_genl_table_policy[DP_GENL_A_MAX + 1] = {
- [DP_GENL_A_DP_IDX] = { .type = NLA_U32 },
-};
-
-static struct genl_ops dp_genl_ops_query_table = {
- .cmd = DP_GENL_C_QUERY_TABLE,
- .flags = GENL_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
- .policy = dp_genl_table_policy,
- .doit = dp_genl_table_query,
- .dumpit = NULL,
-};
-
-
static struct genl_ops dp_genl_ops_query_dp = {
.cmd = DP_GENL_C_QUERY_DP,
.flags = GENL_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
* front. */
&dp_genl_ops_openflow,
- &dp_genl_ops_query_flow,
- &dp_genl_ops_query_table,
&dp_genl_ops_add_dp,
&dp_genl_ops_del_dp,
&dp_genl_ops_query_dp,
int dp_send_features_reply(struct datapath *, const struct sender *);
int dp_send_config_reply(struct datapath *, const struct sender *);
int dp_send_flow_expired(struct datapath *, struct sw_flow *);
+int dp_send_flow_stats(struct datapath *, const struct sender *,
+ const struct ofp_match *);
+int dp_send_table_stats(struct datapath *, const struct sender *);
int dp_send_port_stats(struct datapath *, const struct sender *);
int dp_update_port_flags(struct datapath *dp, const struct ofp_phy_port *opp);
}
}
+static int
+recv_flow_status_request(struct sw_chain *chain, const struct sender *sender,
+ const void *msg)
+{
+ const struct ofp_flow_stat_request *fsr = msg;
+ if (fsr->type == OFPFS_INDIV) {
+ return dp_send_flow_stats(chain->dp, sender, &fsr->match);
+ } else {
+ /* FIXME */
+ return -ENOTSUPP;
+ }
+}
+
+static int
+recv_port_status_request(struct sw_chain *chain, const struct sender *sender,
+ const void *msg)
+{
+ return dp_send_port_stats(chain->dp, sender);
+}
+
+static int
+recv_table_status_request(struct sw_chain *chain, const struct sender *sender,
+ const void *msg)
+{
+ return dp_send_table_stats(chain->dp, sender);
+}
+
/* 'msg', which is 'length' bytes long, was received across Netlink from
* 'sender'. Apply it to 'chain'. */
int
sizeof (struct ofp_port_mod),
recv_port_mod,
},
+ [OFPT_FLOW_STAT_REQUEST] = {
+ sizeof (struct ofp_flow_stat_request),
+ recv_flow_status_request,
+ },
+ [OFPT_PORT_STAT_REQUEST] = {
+ sizeof (struct ofp_port_stat_request),
+ recv_port_status_request,
+ },
+ [OFPT_TABLE_STAT_REQUEST] = {
+ sizeof (struct ofp_table_stat_request),
+ recv_table_status_request,
+ },
};
const struct openflow_packet *pkt;
int dpif_del_dp(struct dpif *);
int dpif_add_port(struct dpif *, const char *netdev);
int dpif_del_port(struct dpif *, const char *netdev);
-int dpif_show(struct dpif *);
-int dpif_dump_tables(struct dpif *);
-int dpif_dump_flows(struct dpif *, int table, struct ofp_match *);
int dpif_benchmark_nl(struct dpif *, uint32_t, uint32_t);
#endif /* dpif.h */
#include <stdio.h>
struct ofp_flow_mod;
-struct ofp_table;
#ifdef __cplusplus
extern "C" {
#endif
void ofp_print(FILE *, const void *, size_t, int verbosity);
-void ofp_print_table(FILE *stream, const struct ofp_table* ot);
void ofp_print_packet(FILE *stream, const void *data, size_t len, size_t total_len);
char *ofp_to_string(const void *, size_t, int verbosity);
-char *ofp_table_to_string(const struct ofp_table* ot);
char *ofp_packet_to_string(const void *data, size_t len, size_t total_len);
#ifdef __cplusplus
/* Attributes that can be attached to the datapath's netlink messages. */
enum {
DP_GENL_A_UNSPEC,
- DP_GENL_A_OFPHEADER, /* OFP header information */
DP_GENL_A_DP_IDX, /* Datapath Ethernet device name. */
DP_GENL_A_PORTNAME, /* Device name for datapath port. */
DP_GENL_A_MC_GROUP, /* Generic netlink multicast group. */
DP_GENL_A_OPENFLOW, /* OpenFlow packet. */
- DP_GENL_A_DP_INFO, /* OpenFlow datapath information */
-
- DP_GENL_A_FLOW, /* OpenFlow flow entry */
- DP_GENL_A_NUMFLOWS, /* Number of flows */
- DP_GENL_A_TABLEIDX, /* Flow table index */
-
- DP_GENL_A_TABLE, /* OpenFlow table entry */
- DP_GENL_A_NUMTABLES, /* Number of tables in a table query */
-
DP_GENL_A_NPACKETS, /* Number of packets to send up netlink */
DP_GENL_A_PSIZE, /* Size of packets to send up netlink */
DP_GENL_C_ADD_DP, /* Create datapath. */
DP_GENL_C_DEL_DP, /* Destroy datapath. */
DP_GENL_C_QUERY_DP, /* Get multicast group for datapath. */
- DP_GENL_C_SHOW_DP, /* Show information about datapath. */
DP_GENL_C_ADD_PORT, /* Add port to datapath. */
DP_GENL_C_DEL_PORT, /* Remove port from datapath. */
DP_GENL_C_OPENFLOW, /* Encapsulated OpenFlow protocol. */
- DP_GENL_C_QUERY_FLOW, /* Request flow entries. */
- DP_GENL_C_QUERY_TABLE, /* Request table entries. */
-
DP_GENL_C_BENCHMARK_NL, /* Benchmark netlink connection */
__DP_GENL_C_MAX,
DP_GENL_C_MAX = __DP_GENL_C_MAX - 1
};
-/* Table */
-enum {
- TBL_MACONLY,
- TBL_HASH,
- TBL_LINEAR,
- __TBL_MAX,
- TBL_MAX = __TBL_MAX - 1
-};
-
#endif /* openflow_netlink_h */
/* Statistics about flows that match the "match" field */
struct ofp_flow_stats {
struct ofp_match match; /* Description of fields */
- uint32_t duration; /* Time flow has been alive in seconds. Only
+ uint16_t duration; /* Time flow has been alive in seconds. Only
used for non-aggregated results. */
- uint64_t packet_count;
+ uint16_t table_id; /* ID of table flow came from. */
+ uint64_t packet_count;
uint64_t byte_count;
};
struct ofp_flow_stat_request {
struct ofp_header header;
struct ofp_match match; /* Fields to match */
+ uint16_t table_id; /* ID of table to read (from ofp_table_stats)
+ or 0xffff for all tables. */
uint8_t type; /* One of OFPFS_ */
- uint8_t pad[3]; /* Align to 32-bits */
+ uint8_t pad; /* Align to 32-bits */
};
/* Current flow statistics reply */
struct ofp_flow_stats flows[0];
};
-/* Table attributes collected at runtime */
-struct ofp_table {
+/* Current table statistics request */
+struct ofp_table_stat_request {
+ struct ofp_header header;
+};
+
+/* Statistics about a particular table */
+struct ofp_table_stats {
+ uint16_t table_id;
+ uint8_t pad[2]; /* Align to 32-bits */
+ char name[OFP_MAX_TABLE_NAME_LEN];
+ uint32_t max_entries; /* Max number of entries supported */
+ uint32_t active_count; /* Number of active entries */
+ uint64_t matched_count; /* Number of packets that hit table */
+};
+
+/* Current table statistics reply */
+struct ofp_table_stat_reply {
+ struct ofp_header header;
+ struct ofp_table_stats tables[]; /* The number of entries is inferred from
+ the length field in the header. */
+};
+
+/* Statistics about a particular port */
+struct ofp_port_stats {
+ uint16_t port_no;
+ uint8_t pad[2]; /* Align to 32-bits */
+ uint64_t rx_count; /* Number of received packets */
+ uint64_t tx_count; /* Number of transmitted packets */
+ uint64_t drop_count; /* Number of packets dropped by interface */
+};
+
+/* Current port statistics request */
+struct ofp_port_stat_request {
+ struct ofp_header header;
+};
+
+/* Current port statistics reply */
+struct ofp_port_stat_reply {
struct ofp_header header;
- char name[OFP_MAX_TABLE_NAME_LEN];
- uint16_t table_id;
- unsigned long int n_flows;
- unsigned long int max_flows;
+ struct ofp_port_stats ports[]; /* The number of entries is inferred from
+ the length field in the header. */
};
#endif /* openflow.h */
int vconn_open_block(const char *name, struct vconn **);
int vconn_send_block(struct vconn *, struct buffer *);
+int vconn_recv_block(struct vconn *, struct buffer **);
enum vconn_wait_type {
WAIT_CONNECT,
return send_mgmt_command(dp, DP_GENL_C_DEL_PORT, netdev);
}
-static const struct nl_policy table_policy[] = {
- [DP_GENL_A_NUMTABLES] = { .type = NL_A_U32 },
- [DP_GENL_A_TABLE] = { .type = NL_A_UNSPEC },
-};
-
-/* Writes a description of 'dp''s tables to stdout. Returns 0 if successful,
- * otherwise a positive errno value. */
-int
-dpif_dump_tables(struct dpif *dp)
-{
- struct buffer request, *reply;
- struct nlattr *attrs[ARRAY_SIZE(table_policy)];
- const struct ofp_table *tables;
- int n_tables;
- int i;
- int retval;
-
- buffer_init(&request, 0);
- nl_msg_put_genlmsghdr(&request, dp->sock, 0, openflow_family,
- NLM_F_REQUEST, DP_GENL_C_QUERY_TABLE, 1);
- nl_msg_put_u32(&request, DP_GENL_A_DP_IDX, dp->dp_idx);
- retval = nl_sock_transact(dp->sock, &request, &reply);
- buffer_uninit(&request);
- if (retval) {
- return retval;
- }
- if (!nl_policy_parse(reply, table_policy, attrs,
- ARRAY_SIZE(table_policy))) {
- buffer_delete(reply);
- return EPROTO;
- }
-
- tables = nl_attr_get(attrs[DP_GENL_A_TABLE]);
- n_tables = (nl_attr_get_size(attrs[DP_GENL_A_TABLE])
- / sizeof(struct ofp_table));
- n_tables = MIN(n_tables, nl_attr_get_u32(attrs[DP_GENL_A_NUMTABLES]));
- for (i = 0; i < n_tables; i++) {
- const struct ofp_table *ot = &tables[i];
- if (ot->header.version != 1 || ot->header.type != OFPT_TABLE) {
- VLOG_DBG("bad table query response (%"PRIu8",%"PRIu8")",
- ot->header.version, ot->header.type);
- retval = EPROTO;
- break;
- }
-
- ofp_print_table(stdout, ot);
- fprintf(stdout,"\n");
- }
- buffer_delete(reply);
-
- return retval;
-}
-
-static const struct nl_policy flow_policy[] = {
- [DP_GENL_A_TABLEIDX] = { .type = NL_A_U16 },
- [DP_GENL_A_NUMFLOWS] = { .type = NL_A_U32 },
- [DP_GENL_A_FLOW] = { .type = NL_A_UNSPEC },
-};
-
-/* Writes a description of flows in the given 'table' in 'dp' to stdout. If
- * 'match' is null, all flows in the table are written; otherwise, only
- * matching flows are written. Returns 0 if successful, otherwise a positive
- * errno value. */
-int
-dpif_dump_flows(struct dpif *dp, int table, struct ofp_match *match)
-{
- struct buffer request, *reply;
- struct ofp_flow_mod *ofm;
- int retval;
-
- buffer_init(&request, 0);
- nl_msg_put_genlmsghdr(&request, dp->sock, 0, openflow_family, NLM_F_REQUEST,
- DP_GENL_C_QUERY_FLOW, 1);
- nl_msg_put_u32(&request, DP_GENL_A_DP_IDX, dp->dp_idx);
- nl_msg_put_u16(&request, DP_GENL_A_TABLEIDX, table);
- ofm = nl_msg_put_unspec_uninit(&request, DP_GENL_A_FLOW, sizeof *ofm);
- memset(ofm, 0, sizeof *ofm);
- ofm->header.version = 1;
- ofm->header.type = OFPT_FLOW_MOD;
- ofm->header.length = htons(sizeof ofm);
- if (match) {
- ofm->match = *match;
- } else {
- ofm->match.wildcards = htons(OFPFW_ALL);
- }
- retval = nl_sock_transact(dp->sock, &request, &reply);
- buffer_uninit(&request);
- if (retval) {
- return retval;
- }
-
- for (;;) {
- struct nlattr *attrs[ARRAY_SIZE(flow_policy)];
- const struct ofp_flow_mod *flows, *ofm;
- int n_flows;
-
- if (!nl_policy_parse(reply, flow_policy, attrs,
- ARRAY_SIZE(flow_policy))) {
- buffer_delete(reply);
- return EPROTO;
- }
- n_flows = (nl_attr_get_size(attrs[DP_GENL_A_FLOW])
- / sizeof(struct ofp_flow_mod));
- n_flows = MIN(n_flows, nl_attr_get_u32(attrs[DP_GENL_A_NUMFLOWS]));
- if (n_flows <= 0) {
- break;
- }
-
- flows = nl_attr_get(attrs[DP_GENL_A_FLOW]);
- for (ofm = flows; ofm < &flows[n_flows]; ofm++) {
- if (ofm->header.version != 1){
- VLOG_DBG("recv_dp_flow incorrect version");
- buffer_delete(reply);
- return EPROTO;
- } else if (ofm->header.type != OFPT_FLOW_MOD) {
- VLOG_DBG("recv_fp_flow bad return message type");
- buffer_delete(reply);
- return EPROTO;
- }
-
- ofp_print(stdout, ofm, sizeof *ofm, 1);
- putc('\n', stdout);
- }
-
- buffer_delete(reply);
- retval = nl_sock_recv(dp->sock, &reply, true);
- if (retval) {
- return retval;
- }
- }
- return 0;
-}
-
/* Tells dp to send num_packets up through netlink for benchmarking*/
int
dpif_benchmark_nl(struct dpif *dp, uint32_t num_packets, uint32_t packet_size)
ofp_print_phy_port(string, &ops->desc);
}
+static void
+ofp_flow_stat_request(struct ds *string, const void *oh, size_t len,
+ int verbosity)
+{
+ const struct ofp_flow_stat_request *fsr = oh;
+
+ if (fsr->table_id == htons(0xffff)) {
+ ds_put_format(string, " table_id=any, ");
+ } else {
+ ds_put_format(string, " table_id=%"PRIu16", ", ntohs(fsr->table_id));
+ }
+
+ if (fsr->type == OFPFS_INDIV) {
+ ds_put_cstr(string, " type=indiv, ");
+ } else if (fsr->type == OFPFS_AGGREGATE) {
+ ds_put_cstr(string, " type=aggregate, ");
+ } else {
+ ds_put_format(string, " ***type=%"PRIu8"***, ", fsr->type);
+ }
+ ofp_print_match(string, &fsr->match);
+}
+
+static void
+ofp_flow_stat_reply(struct ds *string, const void *oh, size_t len,
+ int verbosity)
+{
+ const struct ofp_flow_stat_reply *fsr = oh;
+ const struct ofp_flow_stats *fs;
+ size_t n;
+
+ n = (len - offsetof(struct ofp_flow_stat_reply, flows)) / sizeof *fs;
+ ds_put_format(string, " %zu flows\n", n);
+ if (verbosity < 1) {
+ return;
+ }
+
+ for (fs = &fsr->flows[0]; fs < &fsr->flows[n]; fs++) {
+ ds_put_format(string, " duration=%"PRIu16" s, ", ntohs(fs->duration));
+ ds_put_format(string, "table_id=%"PRIu16", ", ntohs(fs->table_id));
+ ds_put_format(string, "n_packets=%"PRIu64", ",
+ ntohll(fs->packet_count));
+ ds_put_format(string, "n_bytes=%"PRIu64", ", ntohll(fs->byte_count));
+ ofp_print_match(string, &fs->match);
+ }
+}
+
+static void
+ofp_port_stat_reply(struct ds *string, const void *oh, size_t len,
+ int verbosity)
+{
+ const struct ofp_port_stat_reply *psr = oh;
+ const struct ofp_port_stats *ps;
+ size_t n;
+
+ n = (len - offsetof(struct ofp_port_stat_reply, ports)) / sizeof *ps;
+ ds_put_format(string, " %zu ports\n", n);
+ if (verbosity < 1) {
+ return;
+ }
+
+ for (ps = &psr->ports[0]; ps < &psr->ports[n]; ps++) {
+ ds_put_format(string, " port %"PRIu16": ", ntohs(ps->port_no));
+ ds_put_format(string, "rx %"PRIu64", ", ntohll(ps->rx_count));
+ ds_put_format(string, "tx %"PRIu64", ", ntohll(ps->tx_count));
+ ds_put_format(string, "dropped %"PRIu64"\n", ntohll(ps->drop_count));
+ }
+}
+
+static void
+ofp_table_stat_reply(struct ds *string, const void *oh, size_t len,
+ int verbosity)
+{
+ const struct ofp_table_stat_reply *tsr = oh;
+ const struct ofp_table_stats *ts;
+ size_t n;
+
+ n = (len - offsetof(struct ofp_table_stat_reply, tables)) / sizeof *ts;
+ ds_put_format(string, " %zu tables\n", n);
+ if (verbosity < 1) {
+ return;
+ }
+
+ for (ts = &tsr->tables[0]; ts < &tsr->tables[n]; ts++) {
+ char name[OFP_MAX_TABLE_NAME_LEN + 1];
+ strncpy(name, ts->name, sizeof name);
+ name[OFP_MAX_TABLE_NAME_LEN] = '\0';
+
+ ds_put_format(string, " table %"PRIu16": ", ntohs(ts->table_id));
+ ds_put_format(string, "name %-8s, ", name);
+ ds_put_format(string, "max %6"PRIu32", ", ntohl(ts->max_entries));
+ ds_put_format(string, "active %6"PRIu32", ", ntohl(ts->active_count));
+ ds_put_format(string, "matched %6"PRIu64"\n",
+ ntohll(ts->matched_count));
+ }
+}
+
struct openflow_packet {
const char *name;
size_t min_size;
sizeof (struct ofp_port_status),
ofp_print_port_status
},
+ [OFPT_FLOW_STAT_REQUEST] = {
+ "flow_stat_request",
+ sizeof (struct ofp_flow_stat_request),
+ ofp_flow_stat_request,
+ },
+ [OFPT_FLOW_STAT_REPLY] = {
+ "flow_stat_reply",
+ sizeof (struct ofp_flow_stat_reply),
+ ofp_flow_stat_reply,
+ },
+ [OFPT_PORT_STAT_REQUEST] = {
+ "port_stat_request",
+ sizeof (struct ofp_port_stat_request),
+ NULL,
+ },
+ [OFPT_PORT_STAT_REPLY] = {
+ "port_stat_reply",
+ sizeof (struct ofp_port_stat_reply),
+ ofp_port_stat_reply,
+ },
+ [OFPT_TABLE_STAT_REQUEST] = {
+ "table_stat_request",
+ sizeof (struct ofp_table_stat_request),
+ NULL,
+ },
+ [OFPT_TABLE_STAT_REPLY] = {
+ "table_stat_reply",
+ sizeof (struct ofp_table_stat_reply),
+ ofp_table_stat_reply,
+ },
};
/* Composes and returns a string representing the OpenFlow packet of 'len'
ds_put_format(&string, " (***length=%zu < min_size=%zu***)\n",
len, pkt->min_size);
} else if (!pkt->printer) {
- ds_put_format(&string, " length=%zu (decoder not implemented)\n",
- ntohs(oh->length));
+ if (len > sizeof *oh) {
+ ds_put_format(&string, " length=%zu (decoder not implemented)\n",
+ ntohs(oh->length));
+ }
} else {
pkt->printer(&string, oh, len, verbosity);
}
}
return ds_cstr(&string);
}
-
-char *
-ofp_table_to_string(const struct ofp_table* ot)
-{
- return xasprintf("id: %d name: %-8s n_flows: %6d max_flows: %6d",
- ntohs(ot->table_id), ot->name, ntohl(ot->n_flows),
- ntohl(ot->max_flows));
-}
\f
static void
print_and_free(FILE *stream, char *string)
print_and_free(stream, ofp_to_string(oh, len, verbosity));
}
-/* Pretty print a openflow table */
-void
-ofp_print_table(FILE *stream, const struct ofp_table *ot)
-{
- print_and_free(stream, ofp_table_to_string(ot));
-}
-
/* Dumps the contents of the Ethernet frame in the 'len' bytes starting at
* 'data' to 'stream' using tcpdump. 'total_len' specifies the full length of
* the Ethernet frame (of which 'len' bytes were captured).
int retval;
while ((retval = vconn_send(vconn, msg)) == EAGAIN) {
vconn_send_wait(vconn);
+ VLOG_DBG("blocking on vconn send");
+ poll_block();
+ }
+ return retval;
+}
+
+/* Same as vconn_recv, except that it waits until a message is received. */
+int
+vconn_recv_block(struct vconn *vconn, struct buffer **msgp)
+{
+ int retval;
+ while ((retval = vconn_recv(vconn, msgp)) == EAGAIN) {
+ vconn_recv_wait(vconn);
+ VLOG_DBG("blocking on vconn receive");
poll_block();
}
return retval;
#define THIS_MODULE VLM_chain
#include "vlog.h"
-/* Set of tables chained together in sequence from cheap to expensive. */
-#define CHAIN_MAX_TABLES 4
-struct sw_chain {
- int n_tables;
- struct sw_table *tables[CHAIN_MAX_TABLES];
-};
-
/* Attempts to append 'table' to the set of tables in 'chain'. Returns 0 or
* negative error. If 'table' is null it is assumed that table creation failed
* due to out-of-memory. */
#define TABLE_MAC_MAX_FLOWS 1024
#define TABLE_MAC_NUM_BUCKETS 1024
+/* Set of tables chained together in sequence from cheap to expensive. */
+#define CHAIN_MAX_TABLES 4
+struct sw_chain {
+ int n_tables;
+ struct sw_table *tables[CHAIN_MAX_TABLES];
+};
+
struct sw_chain *chain_create(void);
struct sw_flow *chain_lookup(struct sw_chain *, const struct sw_flow_key *);
int chain_insert(struct sw_chain *, struct sw_flow *);
struct datapath *dp;
struct netdev *netdev;
struct list node; /* Element in datapath.ports. */
+ unsigned long long int rx_count, tx_count, drop_count;
};
/* A connection to a controller or a management device. */
p->dp = dp;
p->netdev = netdev;
+ p->tx_count = 0;
+ p->rx_count = 0;
+ p->drop_count = 0;
list_push_back(&dp->port_list, &p->node);
/* Notify the ctlpath that this port has been added */
}
error = netdev_recv(p->netdev, buffer);
if (!error) {
+ p->rx_count++;
fwd_port_input(dp, buffer, port_no(dp, p));
buffer = NULL;
} else if (error != EAGAIN) {
if (out_port >= 0 && out_port < OFPP_MAX) {
struct sw_port *p = &dp->ports[out_port];
if (p->netdev != NULL) {
- netdev_send(p->netdev, buffer);
+ if (!netdev_send(p->netdev, buffer)) {
+ p->tx_count++;
+ } else {
+ p->drop_count++;
+ }
return;
}
}
ofe->byte_count = htonll(flow->byte_count);
send_openflow_buffer(dp, buffer, NULL);
}
+
+static void
+fill_flow_stats(struct ofp_flow_stats *ofs, struct sw_flow *flow,
+ int table_idx, time_t now)
+{
+ int duration;
+
+ ofs->match.wildcards = htons(flow->key.wildcards);
+ ofs->match.in_port = flow->key.flow.in_port;
+ memcpy(ofs->match.dl_src, flow->key.flow.dl_src, ETH_ADDR_LEN);
+ memcpy(ofs->match.dl_dst, flow->key.flow.dl_dst, ETH_ADDR_LEN);
+ ofs->match.dl_vlan = flow->key.flow.dl_vlan;
+ ofs->match.dl_type = flow->key.flow.dl_type;
+ ofs->match.nw_src = flow->key.flow.nw_src;
+ ofs->match.nw_dst = flow->key.flow.nw_dst;
+ ofs->match.nw_proto = flow->key.flow.nw_proto;
+ memset(ofs->match.pad, 0, sizeof ofs->match.pad);
+ ofs->match.tp_src = flow->key.flow.tp_src;
+ ofs->match.tp_dst = flow->key.flow.tp_dst;
+ duration = now - flow->created;
+ ofs->duration = htons(MIN(65535, duration));
+ ofs->table_id = htons(table_idx);
+ ofs->packet_count = htonll(flow->packet_count);
+ ofs->byte_count = htonll(flow->byte_count);
+}
+
+int
+dp_send_flow_stats(struct datapath *dp, const struct sender *sender,
+ const struct ofp_match *match)
+{
+ struct buffer *buffer;
+ struct ofp_flow_stat_reply *fsr;
+ size_t header_size, fudge, flow_size;
+ struct sw_flow_key match_key;
+ int table_idx, n_flows, max_flows;
+ time_t now;
+
+ header_size = offsetof(struct ofp_flow_stat_reply, flows);
+ fudge = 128;
+ flow_size = sizeof fsr->flows[0];
+ max_flows = (65536 - header_size - fudge) / flow_size;
+ fsr = alloc_openflow_buffer(dp, header_size,
+ OFPT_FLOW_STAT_REPLY, sender, &buffer);
+
+ n_flows = 0;
+ flow_extract_match(&match_key, match);
+ now = time(0);
+ for (table_idx = 0; table_idx < dp->chain->n_tables; table_idx++) {
+ struct sw_table *table = dp->chain->tables[table_idx];
+ struct swt_iterator iter;
+
+ if (n_flows >= max_flows) {
+ break;
+ }
+
+ if (!table->iterator(table, &iter)) {
+ printf("iterator failed for table %d\n", table_idx);
+ continue;
+ }
+
+ for (; iter.flow; table->iterator_next(&iter)) {
+ if (flow_matches(&match_key, &iter.flow->key)) {
+ struct ofp_flow_stats *ofs = buffer_put_uninit(buffer,
+ sizeof *ofs);
+ fill_flow_stats(ofs, iter.flow, table_idx, now);
+ if (++n_flows >= max_flows) {
+ break;
+ }
+ }
+ }
+ table->iterator_destroy(&iter);
+ }
+ return send_openflow_buffer(dp, buffer, sender);
+}
+
+int
+dp_send_port_stats(struct datapath *dp, const struct sender *sender)
+{
+ struct buffer *buffer;
+ struct ofp_port_stat_reply *psr;
+ struct sw_port *p;
+
+ psr = alloc_openflow_buffer(dp, offsetof(struct ofp_port_stat_reply,
+ ports),
+ OFPT_PORT_STAT_REPLY, sender, &buffer);
+ LIST_FOR_EACH (p, struct sw_port, node, &dp->port_list) {
+ struct ofp_port_stats *ps = buffer_put_uninit(buffer, sizeof *ps);
+ ps->port_no = htons(port_no(dp, p));
+ memset(ps->pad, 0, sizeof ps->pad);
+ ps->rx_count = htonll(p->rx_count);
+ ps->tx_count = htonll(p->tx_count);
+ ps->drop_count = htonll(p->drop_count);
+ }
+ return send_openflow_buffer(dp, buffer, sender);
+}
+
+int
+dp_send_table_stats(struct datapath *dp, const struct sender *sender)
+{
+ struct buffer *buffer;
+ struct ofp_table_stat_reply *tsr;
+ int i;
+
+ tsr = alloc_openflow_buffer(dp, offsetof(struct ofp_table_stat_reply,
+ tables),
+ OFPT_TABLE_STAT_REPLY, sender, &buffer);
+ for (i = 0; i < dp->chain->n_tables; i++) {
+ struct ofp_table_stats *ots = buffer_put_uninit(buffer, sizeof *ots);
+ struct sw_table_stats stats;
+ dp->chain->tables[i]->stats(dp->chain->tables[i], &stats);
+ strncpy(ots->name, stats.name, sizeof ots->name);
+ ots->table_id = htons(i);
+ ots->pad[0] = ots->pad[1] = 0;
+ ots->max_entries = htonl(stats.max_flows);
+ ots->active_count = htonl(stats.n_flows);
+ ots->matched_count = htonll(0); /* FIXME */
+ }
+ return send_openflow_buffer(dp, buffer, sender);
+}
\f
/* 'buffer' was received on 'in_port', a physical switch port between 0 and
* OFPP_MAX. Process it according to 'chain'. */
}
}
+static int
+recv_flow_status_request(struct datapath *dp, const struct sender *sender,
+ const void *msg)
+{
+ const struct ofp_flow_stat_request *fsr = msg;
+ if (fsr->type == OFPFS_INDIV) {
+ return dp_send_flow_stats(dp, sender, &fsr->match);
+ } else {
+ /* FIXME */
+ return -ENOSYS;
+ }
+}
+
+static int
+recv_port_status_request(struct datapath *dp, const struct sender *sender,
+ const void *msg)
+{
+ return dp_send_port_stats(dp, sender);
+}
+
+static int
+recv_table_status_request(struct datapath *dp, const struct sender *sender,
+ const void *msg)
+{
+ return dp_send_table_stats(dp, sender);
+}
+
/* 'msg', which is 'length' bytes long, was received from the control path.
* Apply it to 'chain'. */
int
sizeof (struct ofp_port_mod),
recv_port_mod,
},
+ [OFPT_FLOW_STAT_REQUEST] = {
+ sizeof (struct ofp_flow_stat_request),
+ recv_flow_status_request,
+ },
+ [OFPT_PORT_STAT_REQUEST] = {
+ sizeof (struct ofp_port_stat_request),
+ recv_port_status_request,
+ },
+ [OFPT_TABLE_STAT_REQUEST] = {
+ sizeof (struct ofp_table_stat_request),
+ recv_table_status_request,
+ },
};
const struct openflow_packet *pkt;
static struct option long_options[] = {
{"interfaces", required_argument, 0, 'i'},
{"datapath-id", required_argument, 0, 'd'},
+ {"listen", required_argument, 0, 'l'},
{"verbose", optional_argument, 0, 'v'},
{"help", no_argument, 0, 'h'},
{"version", no_argument, 0, 'V'},
#include <getopt.h>
#include <inttypes.h>
#include <netinet/in.h>
+#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "vconn-ssl.h"
#include "vlog.h"
-#define THIS_MODULE VLM_DPCTL
+#define THIS_MODULE VLM_dpctl
static const char* ifconfigbin = "/sbin/ifconfig";
" deldp nl:DP_ID delete local datapath DP_ID\n"
" addif nl:DP_ID IFACE add IFACE as a port on DP_ID\n"
" delif nl:DP_ID IFACE delete IFACE as a port on DP_ID\n"
+ " monitor nl:DP_ID print packets received\n"
" benchmark-nl nl:DP_ID N SIZE send N packets of SIZE bytes\n"
#endif
"\nCommands that apply to local datapaths and remote switches:\n"
- " show METHOD show information about METHOD\n"
- " monitor METHOD print packets received on METHOD\n"
- " dump-tables METHOD print table stats for METHOD\n"
- " dump-flows METHOD T_ID print all flow entries in table T_ID of METHOD\n"
- " dump-flows METHOD T_ID FLOW print matching FLOWs in table T_ID of METHOD\n"
- " add-flows METHOD FILE add flows from FILE to METHOD\n"
- "where each METHOD is an active OpenFlow connection method.\n",
+ " show SWITCH show information\n"
+ " dump-tables SWITCH print table stats\n"
+ " dump-ports SWITCH print port statistics\n"
+ " dump-flows SWITCH print all flow entries\n"
+ " dump-flows SWITCH FLOW print matching FLOWs\n"
+ " add-flows SWITCH FILE add flows from FILE\n"
+ "where each SWITCH is an active OpenFlow connection method.\n",
program_name, program_name);
vconn_usage(true, false);
printf("\nOptions:\n"
exit(EXIT_SUCCESS);
}
-static void run(int retval, const char *name)
+static void run(int retval, const char *message, ...)
+ PRINTF_FORMAT(2, 3);
+
+static void run(int retval, const char *message, ...)
{
if (retval) {
- fatal(retval, "%s", name);
+ va_list args;
+
+ fprintf(stderr, "%s: ", program_name);
+ va_start(args, message);
+ vfprintf(stderr, message, args);
+ va_end(args);
+ if (retval == EOF) {
+ fputs(": unexpected end of file\n", stderr);
+ } else {
+ vfprintf(stderr, ": %s\n", strerror(retval));
+ }
+
+ exit(EXIT_FAILURE);
}
}
\f
dpif_close(&dp);
}
+static void do_monitor(int argc UNUSED, char *argv[])
+{
+ struct dpif dp;
+ open_nl_vconn(argv[1], false, &dp);
+ for (;;) {
+ struct buffer *b;
+ run(dpif_recv_openflow(&dp, &b, true), "dpif_recv_openflow");
+ ofp_print(stderr, b->data, b->size, 2);
+ buffer_delete(b);
+ }
+}
+
#define BENCHMARK_INCR 100
static void do_benchmark_nl(int argc UNUSED, char *argv[])
\f
/* Generic commands. */
-static void do_show(int argc UNUSED, char *argv[])
+static uint32_t
+random_xid(void)
{
-#if 0
- struct dpif dp;
- run(dpif_open(atoi(argv[1]), false, &dp), "dpif_open");
- run(dpif_show(&dp), "show");
- dpif_close(&dp);
-#endif
+ static bool inited = false;
+ if (!inited) {
+ struct timeval tv;
+ inited = true;
+ if (gettimeofday(&tv, NULL) < 0) {
+ fatal(errno, "gettimeofday");
+ }
+ srand(tv.tv_sec ^ tv.tv_usec);
+ }
+ return rand();
}
-static void do_monitor(int argc UNUSED, char *argv[])
+static void *
+alloc_openflow_buffer(size_t openflow_len, uint8_t type,
+ struct buffer **bufferp)
{
- struct dpif dp;
- run(dpif_open(atoi(argv[1]), true, &dp), "dpif_open");
+ struct buffer *buffer;
+ struct ofp_header *oh;
+
+ buffer = *bufferp = buffer_new(openflow_len);
+ oh = buffer_put_uninit(buffer, openflow_len);
+ memset(oh, 0, openflow_len);
+ oh->version = OFP_VERSION;
+ oh->type = type;
+ oh->length = 0;
+ oh->xid = random_xid();
+ return oh;
+}
+
+static void
+send_openflow_buffer(struct vconn *vconn, struct buffer *buffer)
+{
+ struct ofp_header *oh;
+
+ oh = buffer_at_assert(buffer, 0, sizeof *oh);
+ oh->length = htons(buffer->size);
+
+ run(vconn_send_block(vconn, buffer), "failed to send packet to switch");
+}
+
+static struct buffer *
+transact_openflow(struct vconn *vconn, struct buffer *request)
+{
+ uint32_t send_xid = ((struct ofp_header *) request->data)->xid;
+
+ send_openflow_buffer(vconn, request);
for (;;) {
- struct buffer *b;
- run(dpif_recv_openflow(&dp, &b, true), "dpif_recv_openflow");
- ofp_print(stderr, b->data, b->size, 2);
- buffer_delete(b);
+ uint32_t recv_xid;
+ struct buffer *reply;
+
+ run(vconn_recv_block(vconn, &reply), "OpenFlow packet receive failed");
+ recv_xid = ((struct ofp_header *) reply->data)->xid;
+ if (send_xid == recv_xid) {
+ return reply;
+ }
+
+ VLOG_DBG("received reply with xid %08"PRIx32" != expected %08"PRIx32,
+ recv_xid, send_xid);
+ buffer_delete(reply);
}
}
-static void do_dump_tables(int argc, char *argv[])
+static void
+dump_transaction(const char *vconn_name, uint8_t request_type)
{
- struct dpif dp;
- run(dpif_open(atoi(argv[1]), false, &dp), "dpif_open");
- run(dpif_dump_tables(&dp), "dump_tables");
- dpif_close(&dp);
+ struct vconn *vconn;
+ struct buffer *request, *reply;
+
+ run(vconn_open_block(vconn_name, &vconn), "connecting to %s", vconn_name);
+ alloc_openflow_buffer(sizeof(struct ofp_header), request_type, &request);
+ reply = transact_openflow(vconn, request);
+ ofp_print(stdout, reply->data, reply->size, 1);
+ vconn_close(vconn);
+}
+
+static void
+do_show(int argc UNUSED, char *argv[])
+{
+ dump_transaction(argv[1], OFPT_FEATURES_REQUEST);
+}
+
+
+static void
+do_dump_tables(int argc, char *argv[])
+{
+ dump_transaction(argv[1], OFPT_TABLE_STAT_REQUEST);
}
}
static void
-str_to_flow(char *string, struct ofp_match *match, struct ofp_action *action)
+str_to_flow(char *string, struct ofp_match *match, struct ofp_action *action,
+ uint16_t *table_idx)
{
struct field {
const char *name;
uint32_t wildcards;
bool got_action = false;
+ if (table_idx) {
+ *table_idx = htons(0xffff);
+ }
memset(match, 0, sizeof *match);
wildcards = OFPFW_ALL;
for (name = strtok(string, "="), value = strtok(NULL, " \t\n");
continue;
}
+ if (table_idx && !strcmp(name, "table")) {
+ *table_idx = htons(atoi(value));
+ continue;
+ }
+
for (f = fields; f < &fields[ARRAY_SIZE(fields)]; f++) {
if (!strcmp(f->name, name)) {
goto found;
static void do_dump_flows(int argc, char *argv[])
{
- struct dpif dp;
- struct ofp_match match, *matchp;
- run(dpif_open(atoi(argv[1]), false, &dp), "dpif_open");
- if (argc == 4) {
- str_to_flow(argv[3], &match, NULL);
- matchp = &match;
- } else {
- matchp = NULL;
- }
- run(dpif_dump_flows(&dp, atoi(argv[2]), matchp), "dump_flows");
- dpif_close(&dp);
+ struct vconn *vconn;
+ struct buffer *request, *reply;
+ struct ofp_flow_stat_request *fsr;
+
+ run(vconn_open_block(argv[1], &vconn), "connecting to %s", argv[1]);
+ fsr = alloc_openflow_buffer(sizeof *fsr, OFPT_FLOW_STAT_REQUEST, &request);
+ str_to_flow(argc > 2 ? argv[2] : "", &fsr->match, NULL, &fsr->table_id);
+ fsr->type = OFPFS_INDIV;
+ fsr->pad = 0;
+ reply = transact_openflow(vconn, request);
+ ofp_print(stdout, reply->data, reply->size, 1);
+ vconn_close(vconn);
}
static void do_add_flows(int argc, char *argv[])
FILE *file;
char line[1024];
- int retval;
-
file = fopen(argv[2], "r");
if (file == NULL) {
fatal(errno, "%s: open", argv[2]);
}
- sprintf(vconn_name, "nl:%d", atoi(argv[1]));
- retval = vconn_open(vconn_name, &vconn);
- if (retval) {
- fatal(retval, "opening datapath");
- }
-
+ run(vconn_open_block(vconn_name, &vconn), "connecting to %s", argv[1]);
while (fgets(line, sizeof line, file)) {
struct buffer *buffer;
struct ofp_flow_mod *ofm;
continue;
}
+ /* Parse and send. */
size = sizeof *ofm + sizeof ofm->actions[0];
- buffer = buffer_new(size);
- ofm = buffer_put_uninit(buffer, size);
-
- /* Parse. */
- memset(ofm, 0, size);
- ofm->header.type = OFPT_FLOW_MOD;
- ofm->header.version = OFP_VERSION;
- ofm->header.length = htons(size);
+ ofm = alloc_openflow_buffer(size, OFPT_FLOW_MOD, &buffer);
ofm->command = htons(OFPFC_ADD);
ofm->max_idle = htons(50);
ofm->buffer_id = htonl(UINT32_MAX);
ofm->group_id = htonl(0);
- str_to_flow(line, &ofm->match, &ofm->actions[0]);
-
- retval = vconn_send_block(vconn, buffer);
- if (retval) {
- fatal(retval, "sending to datapath");
- }
+ str_to_flow(line, &ofm->match, &ofm->actions[0], NULL);
+ run(vconn_send_block(vconn, buffer), "send OpenFlow packet");
}
vconn_close(vconn);
fclose(file);
}
+static void
+do_dump_ports(int argc, char *argv[])
+{
+ dump_transaction(argv[1], OFPT_PORT_STAT_REQUEST);
+}
+
static void do_help(int argc UNUSED, char *argv[] UNUSED)
{
usage();
{ "help", 0, INT_MAX, do_help },
{ "monitor", 1, 1, do_monitor },
{ "dump-tables", 1, 1, do_dump_tables },
- { "dump-flows", 2, 3, do_dump_flows },
+ { "dump-flows", 1, 2, do_dump_flows },
{ "add-flows", 2, 2, do_add_flows },
+ { "dump-ports", 1, 1, do_dump_ports },
};
projects / openvswitch / commitdiff