#include <getopt.h>
#include <inttypes.h>
#include <netinet/in.h>
+#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "socket-util.h"
#include "openflow.h"
#include "ofp-print.h"
+#include "random.h"
#include "vconn.h"
#include "vconn-ssl.h"
#include "vlog.h"
-#define THIS_MODULE VLM_DPCTL
+#define THIS_MODULE VLM_dpctl
+
+#define DEFAULT_MAX_IDLE 60
+#define MAX_ADD_ACTS 5
static const char* ifconfigbin = "/sbin/ifconfig";
{"verbose", optional_argument, 0, 'v'},
{"help", no_argument, 0, 'h'},
{"version", no_argument, 0, 'V'},
-#ifdef HAVE_OPENSSL
- {"private-key", required_argument, 0, 'p'},
- {"certificate", required_argument, 0, 'c'},
- {"ca-cert", required_argument, 0, 'C'},
-#endif
+ VCONN_SSL_LONG_OPTIONS
{0, 0, 0, 0},
};
char *short_options = long_options_to_short_options(long_options);
vlog_set_verbosity(optarg);
break;
-#ifdef HAVE_OPENSSL
- case 'p':
- vconn_ssl_set_private_key_file(optarg);
- break;
-
- case 'c':
- vconn_ssl_set_certificate_file(optarg);
- break;
-
- case 'C':
- vconn_ssl_set_ca_cert_file(optarg);
- break;
-#endif
+ VCONN_SSL_OPTION_HANDLERS
case '?':
exit(EXIT_FAILURE);
" 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"
+ " dump-aggregate SWITCH print aggregate flow statistics\n"
+ " dump-aggregate SWITCH FLOW print aggregate stats for FLOWs\n"
+ " add-flow SWITCH FLOW add flow described by FLOW\n"
+ " add-flows SWITCH FILE add flows from FILE\n"
+ " del-flows SWITCH FLOW delete matching FLOWs\n"
+ "where each SWITCH is an active OpenFlow connection method.\n",
program_name, program_name);
vconn_usage(true, false);
printf("\nOptions:\n"
+ " -v, --verbose=MODULE:FACILITY:LEVEL configure logging levels\n"
" -v, --verbose set maximum verbosity level\n"
" -h, --help display this help message\n"
" -V, --version display version information\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 {
+ fprintf(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], true, &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 void *
+alloc_openflow_buffer(size_t openflow_len, uint8_t type,
+ struct buffer **bufferp)
{
-#if 0
- struct dpif dp;
- run(dpif_open(atoi(argv[1]), false, &dp), "dpif_open");
- run(dpif_show(&dp), "show");
- dpif_close(&dp);
-#endif
+ 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_uint32();
+ return oh;
}
-static void do_monitor(int argc UNUSED, char *argv[])
+static void *
+alloc_stats_request(size_t body_len, uint16_t type, struct buffer **bufferp)
{
- struct dpif dp;
- run(dpif_open(atoi(argv[1]), true, &dp), "dpif_open");
+ struct ofp_stats_request *rq;
+ rq = alloc_openflow_buffer((offsetof(struct ofp_stats_request, body)
+ + body_len), OFPT_STATS_REQUEST, bufferp);
+ rq->type = htons(type);
+ rq->flags = htons(0);
+ return rq->body;
+}
+
+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, struct buffer *request)
{
- 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 *reply;
+
+ run(vconn_open_block(vconn_name, &vconn), "connecting to %s", vconn_name);
+ reply = transact_openflow(vconn, request);
+ ofp_print(stdout, reply->data, reply->size, 1);
+ vconn_close(vconn);
+}
+
+static void
+dump_trivial_transaction(const char *vconn_name, uint8_t request_type)
+{
+ struct buffer *request;
+ alloc_openflow_buffer(sizeof(struct ofp_header), request_type, &request);
+ dump_transaction(vconn_name, request);
+}
+
+static void
+dump_stats_transaction(const char *vconn_name, struct buffer *request)
+{
+ uint32_t send_xid = ((struct ofp_header *) request->data)->xid;
+ struct vconn *vconn;
+ bool done = false;
+
+ run(vconn_open_block(vconn_name, &vconn), "connecting to %s", vconn_name);
+ send_openflow_buffer(vconn, request);
+ while (!done) {
+ 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) {
+ struct ofp_stats_reply *osr;
+
+ ofp_print(stdout, reply->data, reply->size, 1);
+
+ osr = buffer_at(reply, 0, sizeof *osr);
+ done = !osr || !(ntohs(osr->flags) & OFPSF_REPLY_MORE);
+ } else {
+ VLOG_DBG("received reply with xid %08"PRIx32" "
+ "!= expected %08"PRIx32, recv_xid, send_xid);
+ }
+ buffer_delete(reply);
+ }
+ vconn_close(vconn);
+}
+
+static void
+dump_trivial_stats_transaction(const char *vconn_name, uint8_t stats_type)
+{
+ struct buffer *request;
+ alloc_stats_request(0, stats_type, &request);
+ dump_stats_transaction(vconn_name, request);
+}
+
+static void
+do_show(int argc UNUSED, char *argv[])
+{
+ dump_trivial_transaction(argv[1], OFPT_FEATURES_REQUEST);
+ dump_trivial_transaction(argv[1], OFPT_GET_CONFIG_REQUEST);
+}
+
+
+static void
+do_dump_tables(int argc, char *argv[])
+{
+ dump_trivial_stats_transaction(argv[1], OFPST_TABLE);
}
}
static void
-str_to_action(const char *str, struct ofp_action *action)
+str_to_action(char *str, struct ofp_action *action, int *n_actions)
{
uint16_t port;
+ int i;
+ int max_actions = *n_actions;
+ char *act, *arg;
+ char *saveptr = NULL;
+
+ memset(action, 0, sizeof(*action) * max_actions);
+ for (i=0, act = strtok_r(str, ", \t\r\n", &saveptr);
+ i<max_actions && act;
+ i++, act = strtok_r(NULL, ", \t\r\n", &saveptr))
+ {
+ port = OFPP_MAX;
+
+ /* Arguments are separated by colons */
+ arg = strchr(act, ':');
+ if (arg) {
+ *arg = '\0';
+ arg++;
+ }
+
+ if (!strcasecmp(act, "mod_vlan")) {
+ action[i].type = htons(OFPAT_SET_DL_VLAN);
+
+ if (!strcasecmp(arg, "strip")) {
+ action[i].arg.vlan_id = htons(OFP_VLAN_NONE);
+ } else {
+ action[i].arg.vlan_id = htons(str_to_int(arg));
+ }
+ } else if (!strcasecmp(act, "output")) {
+ port = str_to_int(arg);
+ } else if (!strcasecmp(act, "TABLE")) {
+ port = OFPP_TABLE;
+ } else if (!strcasecmp(act, "NORMAL")) {
+ port = OFPP_NORMAL;
+ } else if (!strcasecmp(act, "FLOOD")) {
+ port = OFPP_FLOOD;
+ } else if (!strcasecmp(act, "ALL")) {
+ port = OFPP_ALL;
+ } else if (!strcasecmp(act, "CONTROLLER")) {
+ port = OFPP_CONTROLLER;
+ if (arg) {
+ if (!strcasecmp(arg, "all")) {
+ action[i].arg.output.max_len= htons(0);
+ } else {
+ action[i].arg.output.max_len= htons(str_to_int(arg));
+ }
+ }
+ } else if (!strcasecmp(act, "LOCAL")) {
+ port = OFPP_LOCAL;
+ } else if (strspn(act, "0123456789") == strlen(act)) {
+ port = str_to_int(act);
+ } else {
+ fatal(0, "Unknown action: %s", act);
+ }
- if (!strcasecmp(str, "flood")) {
- port = OFPP_FLOOD;
- } else if (!strcasecmp(str, "controller")) {
- port = OFPP_CONTROLLER;
- } else {
- port = str_to_int(str);
+ if (port != OFPP_MAX) {
+ action[i].type = htons(OFPAT_OUTPUT);
+ action[i].arg.output.port = htons(port);
+ }
}
- memset(action, 0, sizeof *action);
- action->type = OFPAT_OUTPUT;
- action->arg.output.port = htons(port);
+ *n_actions = i;
}
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, int *n_actions, uint8_t *table_idx,
+ uint16_t *priority, uint16_t *max_idle)
{
struct field {
const char *name;
char *name, *value;
uint32_t wildcards;
- bool got_action = false;
+ char *act_str;
+
+ if (table_idx) {
+ *table_idx = 0xff;
+ }
+ if (priority) {
+ *priority = OFP_DEFAULT_PRIORITY;
+ }
+ if (max_idle) {
+ *max_idle = DEFAULT_MAX_IDLE;
+ }
+ if (action) {
+ act_str = strstr(string, "action");
+ if (!act_str) {
+ fatal(0, "must specify an action");
+ }
+ *(act_str-1) = '\0';
+
+ act_str = strchr(act_str, '=');
+ if (!act_str) {
+ fatal(0, "must specify an action");
+ }
+
+ act_str++;
+ str_to_action(act_str, action, n_actions);
+ }
memset(match, 0, sizeof *match);
wildcards = OFPFW_ALL;
- for (name = strtok(string, "="), value = strtok(NULL, " \t\n");
+ for (name = strtok(string, "="), value = strtok(NULL, ", \t\r\n");
name && value;
- name = strtok(NULL, "="), value = strtok(NULL, " \t\n"))
+ name = strtok(NULL, "="), value = strtok(NULL, ", \t\r\n"))
{
const struct field *f;
void *data;
- if (action && !strcmp(name, "action")) {
- got_action = true;
- str_to_action(value, action);
+ if (table_idx && !strcmp(name, "table")) {
+ *table_idx = atoi(value);
+ continue;
+ }
+
+ if (priority && !strcmp(name, "priority")) {
+ *priority = atoi(value);
+ continue;
+ }
+
+ if (max_idle && !strcmp(name, "max_idle")) {
+ *max_idle = atoi(value);
continue;
}
found:
data = (char *) match + f->offset;
- if (!strcmp(value, "*")) {
+ if (!strcmp(value, "*") || !strcmp(value, "ANY")) {
wildcards |= f->wildcard;
} else {
wildcards &= ~f->wildcard;
if (name && !value) {
fatal(0, "field %s missing value", name);
}
- if (action && !got_action) {
- fatal(0, "must specify an action");
- }
match->wildcards = htons(wildcards);
}
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 ofp_flow_stats_request *req;
+ struct buffer *request;
+
+ req = alloc_stats_request(sizeof *req, OFPST_FLOW, &request);
+ str_to_flow(argc > 2 ? argv[2] : "", &req->match, NULL, 0,
+ &req->table_id, NULL, NULL);
+ memset(req->pad, 0, sizeof req->pad);
+
+ dump_stats_transaction(argv[1], request);
+}
+
+static void do_dump_aggregate(int argc, char *argv[])
+{
+ struct ofp_aggregate_stats_request *req;
+ struct buffer *request;
+
+ req = alloc_stats_request(sizeof *req, OFPST_AGGREGATE, &request);
+ str_to_flow(argc > 2 ? argv[2] : "", &req->match, NULL, 0,
+ &req->table_id, NULL, NULL);
+ memset(req->pad, 0, sizeof req->pad);
+
+ dump_stats_transaction(argv[1], request);
+}
+
+static void do_add_flow(int argc, char *argv[])
+{
+ struct vconn *vconn;
+ struct buffer *buffer;
+ struct ofp_flow_mod *ofm;
+ uint16_t priority, max_idle;
+ size_t size;
+ int n_actions = MAX_ADD_ACTS;
+
+ run(vconn_open_block(argv[1], &vconn), "connecting to %s", argv[1]);
+
+ /* Parse and send. */
+ size = sizeof *ofm + (sizeof ofm->actions[0] * MAX_ADD_ACTS);
+ ofm = alloc_openflow_buffer(size, OFPT_FLOW_MOD, &buffer);
+ str_to_flow(argv[2], &ofm->match, &ofm->actions[0], &n_actions,
+ NULL, &priority, &max_idle);
+ ofm->command = htons(OFPFC_ADD);
+ ofm->max_idle = htons(max_idle);
+ ofm->buffer_id = htonl(UINT32_MAX);
+ ofm->priority = htons(priority);
+ ofm->reserved = htonl(0);
+
+ /* xxx Should we use the buffer library? */
+ buffer->size -= (MAX_ADD_ACTS - n_actions) * sizeof ofm->actions[0];
+
+ send_openflow_buffer(vconn, buffer);
+ vconn_close(vconn);
}
static void do_add_flows(int argc, char *argv[])
{
struct vconn *vconn;
- char vconn_name[16];
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(argv[1], &vconn), "connecting to %s", argv[1]);
while (fgets(line, sizeof line, file)) {
struct buffer *buffer;
struct ofp_flow_mod *ofm;
+ uint16_t priority, max_idle;
size_t size;
+ int n_actions = MAX_ADD_ACTS;
char *comment;
continue;
}
- 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);
+ /* Parse and send. */
+ size = sizeof *ofm + (sizeof ofm->actions[0] * MAX_ADD_ACTS);
+ ofm = alloc_openflow_buffer(size, OFPT_FLOW_MOD, &buffer);
+ str_to_flow(line, &ofm->match, &ofm->actions[0], &n_actions,
+ NULL, &priority, &max_idle);
ofm->command = htons(OFPFC_ADD);
- ofm->max_idle = htons(50);
+ ofm->max_idle = htons(max_idle);
ofm->buffer_id = htonl(UINT32_MAX);
- ofm->group_id = htonl(0);
- str_to_flow(line, &ofm->match, &ofm->actions[0]);
+ ofm->priority = htons(priority);
+ ofm->reserved = htonl(0);
- retval = vconn_send_block(vconn, buffer);
- if (retval) {
- fatal(retval, "sending to datapath");
- }
+ /* xxx Should we use the buffer library? */
+ buffer->size -= (MAX_ADD_ACTS - n_actions) * sizeof ofm->actions[0];
+
+ send_openflow_buffer(vconn, buffer);
}
vconn_close(vconn);
fclose(file);
}
+static void do_del_flows(int argc, char *argv[])
+{
+ struct vconn *vconn;
+ uint16_t priority;
+
+ run(vconn_open_block(argv[1], &vconn), "connecting to %s", argv[1]);
+ struct buffer *buffer;
+ struct ofp_flow_mod *ofm;
+ size_t size;
+
+
+ /* Parse and send. */
+ size = sizeof *ofm;
+ ofm = alloc_openflow_buffer(size, OFPT_FLOW_MOD, &buffer);
+ str_to_flow(argc > 2 ? argv[2] : "", &ofm->match, NULL, 0, NULL,
+ &priority, NULL);
+ ofm->command = htons(OFPFC_DELETE);
+ ofm->max_idle = htons(0);
+ ofm->buffer_id = htonl(UINT32_MAX);
+ ofm->priority = htons(priority);
+ ofm->reserved = htonl(0);
+
+ send_openflow_buffer(vconn, buffer);
+
+ vconn_close(vconn);
+}
+
+static void
+do_dump_ports(int argc, char *argv[])
+{
+ dump_trivial_stats_transaction(argv[1], OFPST_PORT);
+}
+
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 },
+ { "dump-aggregate", 1, 2, do_dump_aggregate },
+ { "add-flow", 2, 2, do_add_flow },
{ "add-flows", 2, 2, do_add_flows },
+ { "del-flows", 1, 2, do_del_flows },
+ { "dump-ports", 1, 1, do_dump_ports },
+ { NULL, 0, 0, NULL },
};