/*
- * Copyright (c) 2008, 2009, 2010 Nicira Networks.
+ * Copyright (c) 2008, 2009, 2010, 2011, 2012 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
#include <errno.h>
#include <getopt.h>
#include <inttypes.h>
+#include <sys/socket.h>
#include <net/if.h>
#include <signal.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
+#include <sys/fcntl.h>
#include <sys/stat.h>
#include <sys/time.h>
#include "byte-order.h"
#include "classifier.h"
#include "command-line.h"
+#include "daemon.h"
#include "compiler.h"
#include "dirs.h"
-#include "dpif.h"
#include "dynamic-string.h"
#include "netlink.h"
#include "nx-match.h"
#include "odp-util.h"
+#include "ofp-errors.h"
#include "ofp-parse.h"
#include "ofp-print.h"
#include "ofp-util.h"
#include "ofpbuf.h"
+#include "ofproto/ofproto.h"
#include "openflow/nicira-ext.h"
#include "openflow/openflow.h"
+#include "packets.h"
+#include "poll-loop.h"
#include "random.h"
#include "stream-ssl.h"
#include "timeval.h"
+#include "unixctl.h"
#include "util.h"
#include "vconn.h"
#include "vlog.h"
VLOG_DEFINE_THIS_MODULE(ofctl);
-/* --strict: Use strict matching for flow mod commands? */
+/* --strict: Use strict matching for flow mod commands? Additionally governs
+ * use of nx_pull_match() instead of nx_pull_match_loose() in parse-nx-match.
+ */
static bool strict;
-/* -F, --flow-format: Flow format to use. Either one of NXFF_* to force a
- * particular flow format or -1 to let ovs-ofctl choose intelligently. */
-static int preferred_flow_format = -1;
+/* --readd: If true, on replace-flows, re-add even flows that have not changed
+ * (to reset flow counters). */
+static bool readd;
+
+/* -F, --flow-format: Allowed protocols. By default, any protocol is
+ * allowed. */
+static enum ofputil_protocol allowed_protocols = OFPUTIL_P_ANY;
+
+/* -P, --packet-in-format: Packet IN format to use in monitor and snoop
+ * commands. Either one of NXPIF_* to force a particular packet_in format, or
+ * -1 to let ovs-ofctl choose the default. */
+static int preferred_packet_in_format = -1;
/* -m, --more: Additional verbosity for ofp-print functions. */
static int verbosity;
+/* --timestamp: Print a timestamp before each received packet on "monitor" and
+ * "snoop" command? */
+static bool timestamp;
+
static const struct command all_commands[];
static void usage(void) NO_RETURN;
{
enum {
OPT_STRICT = UCHAR_MAX + 1,
+ OPT_READD,
+ OPT_TIMESTAMP,
+ DAEMON_OPTION_ENUMS,
VLOG_OPTION_ENUMS
};
static struct option long_options[] = {
- {"timeout", required_argument, 0, 't'},
- {"strict", no_argument, 0, OPT_STRICT},
- {"flow-format", required_argument, 0, 'F'},
- {"more", no_argument, 0, 'm'},
- {"help", no_argument, 0, 'h'},
- {"version", no_argument, 0, 'V'},
+ {"timeout", required_argument, NULL, 't'},
+ {"strict", no_argument, NULL, OPT_STRICT},
+ {"readd", no_argument, NULL, OPT_READD},
+ {"flow-format", required_argument, NULL, 'F'},
+ {"packet-in-format", required_argument, NULL, 'P'},
+ {"more", no_argument, NULL, 'm'},
+ {"timestamp", no_argument, NULL, OPT_TIMESTAMP},
+ {"help", no_argument, NULL, 'h'},
+ {"version", no_argument, NULL, 'V'},
+ DAEMON_LONG_OPTIONS,
VLOG_LONG_OPTIONS,
- STREAM_SSL_LONG_OPTIONS
- {0, 0, 0, 0},
+ STREAM_SSL_LONG_OPTIONS,
+ {NULL, 0, NULL, 0},
};
char *short_options = long_options_to_short_options(long_options);
break;
case 'F':
- preferred_flow_format = ofputil_flow_format_from_string(optarg);
- if (preferred_flow_format < 0) {
- ovs_fatal(0, "unknown flow format `%s'", optarg);
+ allowed_protocols = ofputil_protocols_from_string(optarg);
+ if (!allowed_protocols) {
+ ovs_fatal(0, "%s: invalid flow format(s)", optarg);
+ }
+ break;
+
+ case 'P':
+ preferred_packet_in_format =
+ ofputil_packet_in_format_from_string(optarg);
+ if (preferred_packet_in_format < 0) {
+ ovs_fatal(0, "unknown packet-in format `%s'", optarg);
}
break;
usage();
case 'V':
- OVS_PRINT_VERSION(OFP_VERSION, OFP_VERSION);
+ ovs_print_version(OFP10_VERSION, OFP10_VERSION);
exit(EXIT_SUCCESS);
case OPT_STRICT:
strict = true;
break;
+ case OPT_READD:
+ readd = true;
+ break;
+
+ case OPT_TIMESTAMP:
+ timestamp = true;
+ break;
+
+ DAEMON_OPTION_HANDLERS
VLOG_OPTION_HANDLERS
STREAM_SSL_OPTION_HANDLERS
"usage: %s [OPTIONS] COMMAND [ARG...]\n"
"\nFor OpenFlow switches:\n"
" show SWITCH show OpenFlow information\n"
- " status SWITCH [KEY] report statistics (about KEY)\n"
" dump-desc SWITCH print switch description\n"
" dump-tables SWITCH print table stats\n"
" mod-port SWITCH IFACE ACT modify port behavior\n"
+ " get-frags SWITCH print fragment handling behavior\n"
+ " set-frags SWITCH FRAG_MODE set fragment handling behavior\n"
" dump-ports SWITCH [PORT] 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"
" mod-flows SWITCH FLOW modify actions of matching FLOWs\n"
" del-flows SWITCH [FLOW] delete matching FLOWs\n"
- " monitor SWITCH [MISSLEN] print packets received from SWITCH\n"
+ " replace-flows SWITCH FILE replace flows with those in FILE\n"
+ " diff-flows SOURCE1 SOURCE2 compare flows from two sources\n"
+ " packet-out SWITCH IN_PORT ACTIONS PACKET...\n"
+ " execute ACTIONS on PACKET\n"
+ " monitor SWITCH [MISSLEN] [invalid_ttl]\n"
+ " print packets received from SWITCH\n"
+ " snoop SWITCH snoop on SWITCH and its controller\n"
"\nFor OpenFlow switches and controllers:\n"
- " probe VCONN probe whether VCONN is up\n"
- " ping VCONN [N] latency of N-byte echos\n"
- " benchmark VCONN N COUNT bandwidth of COUNT N-byte echos\n"
- "where each SWITCH is an active OpenFlow connection method.\n",
+ " probe TARGET probe whether TARGET is up\n"
+ " ping TARGET [N] latency of N-byte echos\n"
+ " benchmark TARGET N COUNT bandwidth of COUNT N-byte echos\n"
+ "where SWITCH or TARGET is an active OpenFlow connection method.\n",
program_name, program_name);
vconn_usage(true, false, false);
+ daemon_usage();
vlog_usage();
printf("\nOther options:\n"
" --strict use strict match for flow commands\n"
+ " --readd replace flows that haven't changed\n"
" -F, --flow-format=FORMAT force particular flow format\n"
+ " -P, --packet-in-format=FRMT force particular packet in format\n"
" -m, --more be more verbose printing OpenFlow\n"
+ " --timestamp (monitor, snoop) print timestamps\n"
" -t, --timeout=SECS give up after SECS seconds\n"
" -h, --help display this help message\n"
" -V, --version display version information\n");
exit(EXIT_SUCCESS);
}
+static void
+ofctl_exit(struct unixctl_conn *conn, int argc OVS_UNUSED,
+ const char *argv[] OVS_UNUSED, void *exiting_)
+{
+ bool *exiting = exiting_;
+ *exiting = true;
+ unixctl_command_reply(conn, NULL);
+}
+
static void run(int retval, const char *message, ...)
PRINTF_FORMAT(2, 3);
if (retval) {
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);
+ ovs_fatal_valist(retval, message, args);
}
}
\f
{
char *vconn_name = xasprintf("unix:%s", name);
VLOG_DBG("connecting to %s", vconn_name);
- run(vconn_open_block(vconn_name, OFP_VERSION, vconnp),
+ run(vconn_open_block(vconn_name, OFP10_VERSION, vconnp),
"connecting to %s", vconn_name);
free(vconn_name);
}
-static void
+static enum ofputil_protocol
open_vconn__(const char *name, const char *default_suffix,
struct vconn **vconnp)
{
- struct dpif *dpif;
+ char *datapath_name, *datapath_type, *socket_name;
+ enum ofputil_protocol protocol;
+ char *bridge_path;
+ int ofp_version;
struct stat s;
- char *bridge_path, *datapath_name, *datapath_type;
bridge_path = xasprintf("%s/%s.%s", ovs_rundir(), name, default_suffix);
- dp_parse_name(name, &datapath_name, &datapath_type);
- if (strstr(name, ":")) {
- run(vconn_open_block(name, OFP_VERSION, vconnp),
+ ofproto_parse_name(name, &datapath_name, &datapath_type);
+ socket_name = xasprintf("%s/%s.%s",
+ ovs_rundir(), datapath_name, default_suffix);
+ free(datapath_name);
+ free(datapath_type);
+
+ if (strchr(name, ':')) {
+ run(vconn_open_block(name, OFP10_VERSION, vconnp),
"connecting to %s", name);
} else if (!stat(name, &s) && S_ISSOCK(s.st_mode)) {
open_vconn_socket(name, vconnp);
} else if (!stat(bridge_path, &s) && S_ISSOCK(s.st_mode)) {
open_vconn_socket(bridge_path, vconnp);
- } else if (!dpif_open(datapath_name, datapath_type, &dpif)) {
- char dpif_name[IF_NAMESIZE + 1];
- char *socket_name;
-
- run(dpif_port_get_name(dpif, ODPP_LOCAL, dpif_name, sizeof dpif_name),
- "obtaining name of %s", dpif_name);
- dpif_close(dpif);
- if (strcmp(dpif_name, name)) {
- VLOG_DBG("datapath %s is named %s", name, dpif_name);
- }
-
- socket_name = xasprintf("%s/%s.%s",
- ovs_rundir(), dpif_name, default_suffix);
- if (stat(socket_name, &s)) {
- ovs_fatal(errno, "cannot connect to %s: stat failed on %s",
- name, socket_name);
- } else if (!S_ISSOCK(s.st_mode)) {
+ } else if (!stat(socket_name, &s)) {
+ if (!S_ISSOCK(s.st_mode)) {
ovs_fatal(0, "cannot connect to %s: %s is not a socket",
name, socket_name);
}
-
open_vconn_socket(socket_name, vconnp);
- free(socket_name);
} else {
- ovs_fatal(0, "%s is not a valid connection method", name);
+ ovs_fatal(0, "%s is not a bridge or a socket", name);
}
- free(datapath_name);
- free(datapath_type);
free(bridge_path);
+ free(socket_name);
+
+ ofp_version = vconn_get_version(*vconnp);
+ protocol = ofputil_protocol_from_ofp_version(ofp_version);
+ if (!protocol) {
+ ovs_fatal(0, "%s: unsupported OpenFlow version 0x%02x",
+ name, ofp_version);
+ }
+ return protocol;
}
-static void
+static enum ofputil_protocol
open_vconn(const char *name, struct vconn **vconnp)
{
return open_vconn__(name, "mgmt", vconnp);
}
static void *
-alloc_stats_request(size_t body_len, uint16_t type, struct ofpbuf **bufferp)
+alloc_stats_request(size_t rq_len, uint16_t type, struct ofpbuf **bufferp)
{
- struct ofp_stats_request *rq;
- rq = make_openflow((offsetof(struct ofp_stats_request, body)
- + body_len), OFPT_STATS_REQUEST, bufferp);
+ struct ofp_stats_msg *rq;
+
+ rq = make_openflow(rq_len, OFPT10_STATS_REQUEST, bufferp);
rq->type = htons(type);
rq->flags = htons(0);
- return rq->body;
+ return rq;
}
static void
open_vconn(vconn_name, &vconn);
run(vconn_transact(vconn, request, &reply), "talking to %s", vconn_name);
ofp_print(stdout, reply->data, reply->size, verbosity + 1);
+ ofpbuf_delete(reply);
vconn_close(vconn);
}
open_vconn(vconn_name, &vconn);
send_openflow_buffer(vconn, request);
while (!done) {
- uint32_t recv_xid;
+ ovs_be32 recv_xid;
struct ofpbuf *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;
+ struct ofp_stats_msg *osm;
ofp_print(stdout, reply->data, reply->size, verbosity + 1);
- osr = ofpbuf_at(reply, 0, sizeof *osr);
- done = !osr || !(ntohs(osr->flags) & OFPSF_REPLY_MORE);
+ osm = ofpbuf_at(reply, 0, sizeof *osm);
+ done = !osm || !(ntohs(osm->flags) & OFPSF_REPLY_MORE);
} else {
VLOG_DBG("received reply with xid %08"PRIx32" "
"!= expected %08"PRIx32, recv_xid, send_xid);
dump_trivial_stats_transaction(const char *vconn_name, uint8_t stats_type)
{
struct ofpbuf *request;
- alloc_stats_request(0, stats_type, &request);
+ alloc_stats_request(sizeof(struct ofp_stats_msg), stats_type, &request);
dump_stats_transaction(vconn_name, request);
}
/* Sends 'request', which should be a request that only has a reply if an error
* occurs, and waits for it to succeed or fail. If an error does occur, prints
- * it and exits with an error. */
+ * it and exits with an error.
+ *
+ * Destroys all of the 'requests'. */
static void
transact_multiple_noreply(struct vconn *vconn, struct list *requests)
{
/* Sends 'request', which should be a request that only has a reply if an error
* occurs, and waits for it to succeed or fail. If an error does occur, prints
- * it and exits with an error. */
+ * it and exits with an error.
+ *
+ * Destroys 'request'. */
static void
transact_noreply(struct vconn *vconn, struct ofpbuf *request)
{
}
static void
-do_show(int argc OVS_UNUSED, char *argv[])
+fetch_switch_config(struct vconn *vconn, struct ofp_switch_config *config_)
{
- dump_trivial_transaction(argv[1], OFPT_FEATURES_REQUEST);
- dump_trivial_transaction(argv[1], OFPT_GET_CONFIG_REQUEST);
+ struct ofp_switch_config *config;
+ struct ofp_header *header;
+ struct ofpbuf *request;
+ struct ofpbuf *reply;
+
+ make_openflow(sizeof(struct ofp_header), OFPT_GET_CONFIG_REQUEST,
+ &request);
+ run(vconn_transact(vconn, request, &reply),
+ "talking to %s", vconn_get_name(vconn));
+
+ header = reply->data;
+ if (header->type != OFPT_GET_CONFIG_REPLY ||
+ header->length != htons(sizeof *config)) {
+ ovs_fatal(0, "%s: bad reply to config request", vconn_get_name(vconn));
+ }
+
+ config = reply->data;
+ *config_ = *config;
+
+ ofpbuf_delete(reply);
}
static void
-do_status(int argc, char *argv[])
+set_switch_config(struct vconn *vconn, struct ofp_switch_config *config_)
{
- struct nicira_header *request, *reply;
- struct vconn *vconn;
- struct ofpbuf *b;
+ struct ofp_switch_config *config;
+ struct ofp_header save_header;
+ struct ofpbuf *request;
- request = make_nxmsg(sizeof *request, NXT_STATUS_REQUEST, &b);
- if (argc > 2) {
- ofpbuf_put(b, argv[2], strlen(argv[2]));
- update_openflow_length(b);
- }
- open_vconn(argv[1], &vconn);
- run(vconn_transact(vconn, b, &b), "talking to %s", argv[1]);
- vconn_close(vconn);
+ config = make_openflow(sizeof *config, OFPT_SET_CONFIG, &request);
+ save_header = config->header;
+ *config = *config_;
+ config->header = save_header;
- if (b->size < sizeof *reply) {
- ovs_fatal(0, "short reply (%zu bytes)", b->size);
- }
- reply = b->data;
- if (reply->header.type != OFPT_VENDOR
- || reply->vendor != ntohl(NX_VENDOR_ID)
- || reply->subtype != ntohl(NXT_STATUS_REPLY)) {
- ofp_print(stderr, b->data, b->size, verbosity + 2);
- ovs_fatal(0, "bad reply");
- }
+ transact_noreply(vconn, request);
+}
- fwrite(reply + 1, b->size - sizeof *reply, 1, stdout);
+static void
+do_show(int argc OVS_UNUSED, char *argv[])
+{
+ dump_trivial_transaction(argv[1], OFPT_FEATURES_REQUEST);
+ dump_trivial_transaction(argv[1], OFPT_GET_CONFIG_REQUEST);
}
static void
dump_trivial_stats_transaction(argv[1], OFPST_TABLE);
}
-/* Opens a connection to 'vconn_name', fetches the ofp_phy_port structure for
+/* Opens a connection to 'vconn_name', fetches the port structure for
* 'port_name' (which may be a port name or number), and copies it into
* '*oppp'. */
static void
-fetch_ofp_phy_port(const char *vconn_name, const char *port_name,
- struct ofp_phy_port *oppp)
+fetch_ofputil_phy_port(const char *vconn_name, const char *port_name,
+ struct ofputil_phy_port *pp)
{
+ struct ofputil_switch_features features;
+ const struct ofp_switch_features *osf;
struct ofpbuf *request, *reply;
- struct ofp_switch_features *osf;
unsigned int port_no;
struct vconn *vconn;
- int n_ports;
- int port_idx;
+ enum ofperr error;
+ struct ofpbuf b;
/* Try to interpret the argument as a port number. */
if (!str_to_uint(port_name, 10, &port_no)) {
ovs_fatal(0, "%s: received too-short features reply (only %zu bytes)",
vconn_name, reply->size);
}
- n_ports = (reply->size - sizeof *osf) / sizeof *osf->ports;
-
- for (port_idx = 0; port_idx < n_ports; port_idx++) {
- const struct ofp_phy_port *opp = &osf->ports[port_idx];
+ error = ofputil_decode_switch_features(osf, &features, &b);
+ if (error) {
+ ovs_fatal(0, "%s: failed to decode features reply (%s)",
+ vconn_name, ofperr_to_string(error));
+ }
+ while (!ofputil_pull_switch_features_port(&b, pp)) {
if (port_no != UINT_MAX
- ? htons(port_no) == opp->port_no
- : !strncmp(opp->name, port_name, sizeof opp->name)) {
- *oppp = *opp;
+ ? port_no == pp->port_no
+ : !strcmp(pp->name, port_name)) {
ofpbuf_delete(reply);
vconn_close(vconn);
return;
if (str_to_uint(port_name, 10, &port_no)) {
return port_no;
} else {
- struct ofp_phy_port opp;
+ struct ofputil_phy_port pp;
- fetch_ofp_phy_port(vconn_name, port_name, &opp);
- return ntohs(opp.port_no);
+ fetch_ofputil_phy_port(vconn_name, port_name, &pp);
+ return pp.port_no;
}
}
static bool
-try_set_flow_format(struct vconn *vconn, enum nx_flow_format flow_format)
+try_set_protocol(struct vconn *vconn, enum ofputil_protocol want,
+ enum ofputil_protocol *cur)
{
- struct ofpbuf *sff, *reply;
+ for (;;) {
+ struct ofpbuf *request, *reply;
+ enum ofputil_protocol next;
- sff = ofputil_make_set_flow_format(flow_format);
- run(vconn_transact_noreply(vconn, sff, &reply),
- "talking to %s", vconn_get_name(vconn));
- if (reply) {
- char *s = ofp_to_string(reply->data, reply->size, 2);
- VLOG_DBG("%s: failed to set flow format %s, controller replied: %s",
- vconn_get_name(vconn),
- ofputil_flow_format_to_string(flow_format),
- s);
- free(s);
- ofpbuf_delete(reply);
- return false;
- }
- return true;
-}
+ request = ofputil_encode_set_protocol(*cur, want, &next);
+ if (!request) {
+ return true;
+ }
-static void
-set_flow_format(struct vconn *vconn, enum nx_flow_format flow_format)
-{
- struct ofpbuf *sff = ofputil_make_set_flow_format(flow_format);
- transact_noreply(vconn, sff);
- VLOG_DBG("%s: using user-specified flow format %s",
- vconn_get_name(vconn),
- ofputil_flow_format_to_string(flow_format));
+ run(vconn_transact_noreply(vconn, request, &reply),
+ "talking to %s", vconn_get_name(vconn));
+ if (reply) {
+ char *s = ofp_to_string(reply->data, reply->size, 2);
+ VLOG_DBG("%s: failed to set protocol, switch replied: %s",
+ vconn_get_name(vconn), s);
+ free(s);
+ ofpbuf_delete(reply);
+ return false;
+ }
+
+ *cur = next;
+ }
}
-static enum nx_flow_format
-negotiate_highest_flow_format(struct vconn *vconn, const struct cls_rule *rule,
- bool cookie_support, ovs_be64 cookie)
+static enum ofputil_protocol
+set_protocol_for_flow_dump(struct vconn *vconn,
+ enum ofputil_protocol cur_protocol,
+ enum ofputil_protocol usable_protocols)
{
- int flow_format;
-
- if (preferred_flow_format != -1) {
- enum nx_flow_format min_format;
+ char *usable_s;
+ int i;
- min_format = ofputil_min_flow_format(rule, cookie_support, cookie);
- if (preferred_flow_format >= min_format) {
- set_flow_format(vconn, preferred_flow_format);
- return preferred_flow_format;
+ for (i = 0; i < ofputil_n_flow_dump_protocols; i++) {
+ enum ofputil_protocol f = ofputil_flow_dump_protocols[i];
+ if (f & usable_protocols & allowed_protocols
+ && try_set_protocol(vconn, f, &cur_protocol)) {
+ return f;
}
-
- VLOG_WARN("%s: cannot use requested flow format %s for "
- "specified flow", vconn_get_name(vconn),
- ofputil_flow_format_to_string(min_format));
}
- if (try_set_flow_format(vconn, NXFF_NXM)) {
- flow_format = NXFF_NXM;
- } else if (try_set_flow_format(vconn, NXFF_TUN_ID_FROM_COOKIE)) {
- flow_format = NXFF_TUN_ID_FROM_COOKIE;
+ usable_s = ofputil_protocols_to_string(usable_protocols);
+ if (usable_protocols & allowed_protocols) {
+ ovs_fatal(0, "switch does not support any of the usable flow "
+ "formats (%s)", usable_s);
} else {
- flow_format = NXFF_OPENFLOW10;
+ char *allowed_s = ofputil_protocols_to_string(allowed_protocols);
+ ovs_fatal(0, "none of the usable flow formats (%s) is among the "
+ "allowed flow formats (%s)", usable_s, allowed_s);
}
-
- VLOG_DBG("%s: negotiated flow format %s", vconn_get_name(vconn),
- ofputil_flow_format_to_string(flow_format));
- return flow_format;
}
static void
do_dump_flows__(int argc, char *argv[], bool aggregate)
{
- enum nx_flow_format flow_format;
- struct flow_stats_request fsr;
+ enum ofputil_protocol usable_protocols, protocol;
+ struct ofputil_flow_stats_request fsr;
struct ofpbuf *request;
struct vconn *vconn;
parse_ofp_flow_stats_request_str(&fsr, aggregate, argc > 2 ? argv[2] : "");
+ usable_protocols = ofputil_flow_stats_request_usable_protocols(&fsr);
- open_vconn(argv[1], &vconn);
- flow_format = negotiate_highest_flow_format(vconn, &fsr.match, false, 0);
- request = ofputil_encode_flow_stats_request(&fsr, flow_format);
+ protocol = open_vconn(argv[1], &vconn);
+ protocol = set_protocol_for_flow_dump(vconn, protocol, usable_protocols);
+ request = ofputil_encode_flow_stats_request(&fsr, protocol);
dump_stats_transaction(argv[1], request);
vconn_close(vconn);
}
dump_stats_transaction(argv[1], request);
}
+static enum ofputil_protocol
+open_vconn_for_flow_mod(const char *remote,
+ const struct ofputil_flow_mod *fms, size_t n_fms,
+ struct vconn **vconnp)
+{
+ enum ofputil_protocol usable_protocols;
+ enum ofputil_protocol cur_protocol;
+ char *usable_s;
+ int i;
+
+ /* Figure out what flow formats will work. */
+ usable_protocols = ofputil_flow_mod_usable_protocols(fms, n_fms);
+ if (!(usable_protocols & allowed_protocols)) {
+ char *allowed_s = ofputil_protocols_to_string(allowed_protocols);
+ usable_s = ofputil_protocols_to_string(usable_protocols);
+ ovs_fatal(0, "none of the usable flow formats (%s) is among the "
+ "allowed flow formats (%s)", usable_s, allowed_s);
+ }
+
+ /* If the initial flow format is allowed and usable, keep it. */
+ cur_protocol = open_vconn(remote, vconnp);
+ if (usable_protocols & allowed_protocols & cur_protocol) {
+ return cur_protocol;
+ }
+
+ /* Otherwise try each flow format in turn. */
+ for (i = 0; i < sizeof(enum ofputil_protocol) * CHAR_BIT; i++) {
+ enum ofputil_protocol f = 1 << i;
+
+ if (f != cur_protocol
+ && f & usable_protocols & allowed_protocols
+ && try_set_protocol(*vconnp, f, &cur_protocol)) {
+ return f;
+ }
+ }
+
+ usable_s = ofputil_protocols_to_string(usable_protocols);
+ ovs_fatal(0, "switch does not support any of the usable flow "
+ "formats (%s)", usable_s);
+}
+
static void
-do_flow_mod__(int argc OVS_UNUSED, char *argv[], uint16_t command)
+do_flow_mod__(const char *remote, struct ofputil_flow_mod *fms, size_t n_fms)
{
- enum nx_flow_format flow_format;
- struct list requests;
+ enum ofputil_protocol protocol;
struct vconn *vconn;
+ size_t i;
- list_init(&requests);
- flow_format = NXFF_OPENFLOW10;
- parse_ofp_flow_mod_str(&requests, &flow_format, argv[2], command);
+ protocol = open_vconn_for_flow_mod(remote, fms, n_fms, &vconn);
- open_vconn(argv[1], &vconn);
- transact_multiple_noreply(vconn, &requests);
+ for (i = 0; i < n_fms; i++) {
+ struct ofputil_flow_mod *fm = &fms[i];
+
+ transact_noreply(vconn, ofputil_encode_flow_mod(fm, protocol));
+ free(fm->actions);
+ }
vconn_close(vconn);
}
+static void
+do_flow_mod_file(int argc OVS_UNUSED, char *argv[], uint16_t command)
+{
+ struct ofputil_flow_mod *fms = NULL;
+ size_t n_fms = 0;
+
+ parse_ofp_flow_mod_file(argv[2], command, &fms, &n_fms);
+ do_flow_mod__(argv[1], fms, n_fms);
+ free(fms);
+}
+
+static void
+do_flow_mod(int argc, char *argv[], uint16_t command)
+{
+ if (argc > 2 && !strcmp(argv[2], "-")) {
+ do_flow_mod_file(argc, argv, command);
+ } else {
+ struct ofputil_flow_mod fm;
+ parse_ofp_flow_mod_str(&fm, argc > 2 ? argv[2] : "", command, false);
+ do_flow_mod__(argv[1], &fm, 1);
+ }
+}
+
static void
do_add_flow(int argc, char *argv[])
{
- do_flow_mod__(argc, argv, OFPFC_ADD);
+ do_flow_mod(argc, argv, OFPFC_ADD);
}
static void
-do_add_flows(int argc OVS_UNUSED, char *argv[])
+do_add_flows(int argc, char *argv[])
{
- enum nx_flow_format flow_format;
- struct list requests;
- struct vconn *vconn;
- FILE *file;
+ do_flow_mod_file(argc, argv, OFPFC_ADD);
+}
- file = fopen(argv[2], "r");
- if (file == NULL) {
- ovs_fatal(errno, "%s: open", argv[2]);
+static void
+do_mod_flows(int argc, char *argv[])
+{
+ do_flow_mod(argc, argv, strict ? OFPFC_MODIFY_STRICT : OFPFC_MODIFY);
+}
+
+static void
+do_del_flows(int argc, char *argv[])
+{
+ do_flow_mod(argc, argv, strict ? OFPFC_DELETE_STRICT : OFPFC_DELETE);
+}
+
+static void
+set_packet_in_format(struct vconn *vconn,
+ enum nx_packet_in_format packet_in_format)
+{
+ struct ofpbuf *spif = ofputil_make_set_packet_in_format(packet_in_format);
+ transact_noreply(vconn, spif);
+ VLOG_DBG("%s: using user-specified packet in format %s",
+ vconn_get_name(vconn),
+ ofputil_packet_in_format_to_string(packet_in_format));
+}
+
+static int
+monitor_set_invalid_ttl_to_controller(struct vconn *vconn)
+{
+ struct ofp_switch_config config;
+ enum ofp_config_flags flags;
+
+ fetch_switch_config(vconn, &config);
+ flags = ntohs(config.flags);
+ if (!(flags & OFPC_INVALID_TTL_TO_CONTROLLER)) {
+ /* Set the invalid ttl config. */
+ flags |= OFPC_INVALID_TTL_TO_CONTROLLER;
+
+ config.flags = htons(flags);
+ set_switch_config(vconn, &config);
+
+ /* Then retrieve the configuration to see if it really took. OpenFlow
+ * doesn't define error reporting for bad modes, so this is all we can
+ * do. */
+ fetch_switch_config(vconn, &config);
+ flags = ntohs(config.flags);
+ if (!(flags & OFPC_INVALID_TTL_TO_CONTROLLER)) {
+ ovs_fatal(0, "setting invalid_ttl_to_controller failed (this "
+ "switch probably doesn't support mode)");
+ return -EOPNOTSUPP;
+ }
}
+ return 0;
+}
- list_init(&requests);
- flow_format = NXFF_OPENFLOW10;
+/* Converts hex digits in 'hex' to an OpenFlow message in '*msgp'. The
+ * caller must free '*msgp'. On success, returns NULL. On failure, returns
+ * an error message and stores NULL in '*msgp'. */
+static const char *
+openflow_from_hex(const char *hex, struct ofpbuf **msgp)
+{
+ struct ofp_header *oh;
+ struct ofpbuf *msg;
- open_vconn(argv[1], &vconn);
- while (parse_ofp_add_flow_file(&requests, &flow_format, file)) {
- transact_multiple_noreply(vconn, &requests);
+ msg = ofpbuf_new(strlen(hex) / 2);
+ *msgp = NULL;
+
+ if (ofpbuf_put_hex(msg, hex, NULL)[0] != '\0') {
+ ofpbuf_delete(msg);
+ return "Trailing garbage in hex data";
+ }
+
+ if (msg->size < sizeof(struct ofp_header)) {
+ ofpbuf_delete(msg);
+ return "Message too short for OpenFlow";
}
- vconn_close(vconn);
- fclose(file);
+ oh = msg->data;
+ if (msg->size != ntohs(oh->length)) {
+ ofpbuf_delete(msg);
+ return "Message size does not match length in OpenFlow header";
+ }
+
+ *msgp = msg;
+ return NULL;
}
static void
-do_mod_flows(int argc, char *argv[])
+ofctl_send(struct unixctl_conn *conn, int argc,
+ const char *argv[], void *vconn_)
+{
+ struct vconn *vconn = vconn_;
+ struct ds reply;
+ bool ok;
+ int i;
+
+ ok = true;
+ ds_init(&reply);
+ for (i = 1; i < argc; i++) {
+ const char *error_msg;
+ struct ofpbuf *msg;
+ int error;
+
+ error_msg = openflow_from_hex(argv[i], &msg);
+ if (error_msg) {
+ ds_put_format(&reply, "%s\n", error_msg);
+ ok = false;
+ continue;
+ }
+
+ fprintf(stderr, "send: ");
+ ofp_print(stderr, msg->data, msg->size, verbosity);
+
+ error = vconn_send_block(vconn, msg);
+ if (error) {
+ ofpbuf_delete(msg);
+ ds_put_format(&reply, "%s\n", strerror(error));
+ ok = false;
+ } else {
+ ds_put_cstr(&reply, "sent\n");
+ }
+ }
+
+ if (ok) {
+ unixctl_command_reply(conn, ds_cstr(&reply));
+ } else {
+ unixctl_command_reply_error(conn, ds_cstr(&reply));
+ }
+ ds_destroy(&reply);
+}
+
+struct barrier_aux {
+ struct vconn *vconn; /* OpenFlow connection for sending barrier. */
+ struct unixctl_conn *conn; /* Connection waiting for barrier response. */
+};
+
+static void
+ofctl_barrier(struct unixctl_conn *conn, int argc OVS_UNUSED,
+ const char *argv[] OVS_UNUSED, void *aux_)
{
- do_flow_mod__(argc, argv, strict ? OFPFC_MODIFY_STRICT : OFPFC_MODIFY);
+ struct barrier_aux *aux = aux_;
+ struct ofpbuf *msg;
+ int error;
+
+ if (aux->conn) {
+ unixctl_command_reply_error(conn, "already waiting for barrier reply");
+ return;
+ }
+
+ msg = ofputil_encode_barrier_request();
+ error = vconn_send_block(aux->vconn, msg);
+ if (error) {
+ ofpbuf_delete(msg);
+ unixctl_command_reply_error(conn, strerror(error));
+ } else {
+ aux->conn = conn;
+ }
}
static void
-do_del_flows(int argc, char *argv[])
+ofctl_set_output_file(struct unixctl_conn *conn, int argc OVS_UNUSED,
+ const char *argv[], void *aux OVS_UNUSED)
{
- do_flow_mod__(argc, argv, strict ? OFPFC_DELETE_STRICT : OFPFC_DELETE);
+ int fd;
+
+ fd = open(argv[1], O_CREAT | O_TRUNC | O_WRONLY, 0666);
+ if (fd < 0) {
+ unixctl_command_reply_error(conn, strerror(errno));
+ return;
+ }
+
+ fflush(stderr);
+ dup2(fd, STDERR_FILENO);
+ close(fd);
+ unixctl_command_reply(conn, NULL);
}
static void
monitor_vconn(struct vconn *vconn)
{
+ struct barrier_aux barrier_aux = { vconn, NULL };
+ struct unixctl_server *server;
+ bool exiting = false;
+ int error;
+
+ daemon_save_fd(STDERR_FILENO);
+ daemonize_start();
+ error = unixctl_server_create(NULL, &server);
+ if (error) {
+ ovs_fatal(error, "failed to create unixctl server");
+ }
+ unixctl_command_register("exit", "", 0, 0, ofctl_exit, &exiting);
+ unixctl_command_register("ofctl/send", "OFMSG...", 1, INT_MAX,
+ ofctl_send, vconn);
+ unixctl_command_register("ofctl/barrier", "", 0, 0,
+ ofctl_barrier, &barrier_aux);
+ unixctl_command_register("ofctl/set-output-file", "FILE", 1, 1,
+ ofctl_set_output_file, NULL);
+ daemonize_complete();
+
for (;;) {
struct ofpbuf *b;
- run(vconn_recv_block(vconn, &b), "vconn_recv");
- ofp_print(stderr, b->data, b->size, verbosity + 2);
- ofpbuf_delete(b);
+ int retval;
+
+ unixctl_server_run(server);
+
+ for (;;) {
+ uint8_t msg_type;
+
+ retval = vconn_recv(vconn, &b);
+ if (retval == EAGAIN) {
+ break;
+ }
+ run(retval, "vconn_recv");
+
+ if (timestamp) {
+ time_t now = time_wall();
+ char s[32];
+
+ strftime(s, sizeof s, "%Y-%m-%d %H:%M:%S: ", localtime(&now));
+ fputs(s, stderr);
+ }
+
+ msg_type = ((const struct ofp_header *) b->data)->type;
+ ofp_print(stderr, b->data, b->size, verbosity + 2);
+ ofpbuf_delete(b);
+
+ if (barrier_aux.conn && msg_type == OFPT10_BARRIER_REPLY) {
+ unixctl_command_reply(barrier_aux.conn, NULL);
+ barrier_aux.conn = NULL;
+ }
+ }
+
+ if (exiting) {
+ break;
+ }
+
+ vconn_run(vconn);
+ vconn_run_wait(vconn);
+ vconn_recv_wait(vconn);
+ unixctl_server_wait(server);
+ poll_block();
}
+ vconn_close(vconn);
+ unixctl_server_destroy(server);
}
static void
open_vconn(argv[1], &vconn);
if (argc > 2) {
- int miss_send_len = atoi(argv[2]);
- struct ofp_switch_config *osc;
- struct ofpbuf *buf;
+ struct ofp_switch_config config;
- osc = make_openflow(sizeof *osc, OFPT_SET_CONFIG, &buf);
- osc->miss_send_len = htons(miss_send_len);
- transact_noreply(vconn, buf);
+ fetch_switch_config(vconn, &config);
+ config.miss_send_len = htons(atoi(argv[2]));
+ set_switch_config(vconn, &config);
+ }
+ if (argc > 3) {
+ if (!strcmp(argv[3], "invalid_ttl")) {
+ monitor_set_invalid_ttl_to_controller(vconn);
+ }
+ }
+ if (preferred_packet_in_format >= 0) {
+ set_packet_in_format(vconn, preferred_packet_in_format);
+ } else {
+ struct ofpbuf *spif, *reply;
+
+ spif = ofputil_make_set_packet_in_format(NXPIF_NXM);
+ run(vconn_transact_noreply(vconn, spif, &reply),
+ "talking to %s", vconn_get_name(vconn));
+ if (reply) {
+ char *s = ofp_to_string(reply->data, reply->size, 2);
+ VLOG_DBG("%s: failed to set packet in format to nxm, controller"
+ " replied: %s. Falling back to the switch default.",
+ vconn_get_name(vconn), s);
+ free(s);
+ ofpbuf_delete(reply);
+ }
}
+
monitor_vconn(vconn);
}
vconn_close(vconn);
}
+static void
+do_packet_out(int argc, char *argv[])
+{
+ struct ofputil_packet_out po;
+ struct ofpbuf actions;
+ struct vconn *vconn;
+ int i;
+
+ ofpbuf_init(&actions, sizeof(union ofp_action));
+ parse_ofp_actions(argv[3], &actions);
+
+ po.buffer_id = UINT32_MAX;
+ po.in_port = (!strcasecmp(argv[2], "none") ? OFPP_NONE
+ : !strcasecmp(argv[2], "local") ? OFPP_LOCAL
+ : str_to_port_no(argv[1], argv[2]));
+ po.actions = actions.data;
+ po.n_actions = actions.size / sizeof(union ofp_action);
+
+ open_vconn(argv[1], &vconn);
+ for (i = 4; i < argc; i++) {
+ struct ofpbuf *packet, *opo;
+ const char *error_msg;
+
+ error_msg = eth_from_hex(argv[i], &packet);
+ if (error_msg) {
+ ovs_fatal(0, "%s", error_msg);
+ }
+
+ po.packet = packet->data;
+ po.packet_len = packet->size;
+ opo = ofputil_encode_packet_out(&po);
+ transact_noreply(vconn, opo);
+ ofpbuf_delete(packet);
+ }
+ vconn_close(vconn);
+ ofpbuf_uninit(&actions);
+}
+
static void
do_mod_port(int argc OVS_UNUSED, char *argv[])
{
- struct ofp_port_mod *opm;
- struct ofp_phy_port opp;
- struct ofpbuf *request;
+ enum ofputil_protocol protocol;
+ struct ofputil_port_mod pm;
+ struct ofputil_phy_port pp;
struct vconn *vconn;
- fetch_ofp_phy_port(argv[1], argv[2], &opp);
+ fetch_ofputil_phy_port(argv[1], argv[2], &pp);
- opm = make_openflow(sizeof(struct ofp_port_mod), OFPT_PORT_MOD, &request);
- opm->port_no = opp.port_no;
- memcpy(opm->hw_addr, opp.hw_addr, sizeof opm->hw_addr);
- opm->config = htonl(0);
- opm->mask = htonl(0);
- opm->advertise = htonl(0);
+ pm.port_no = pp.port_no;
+ memcpy(pm.hw_addr, pp.hw_addr, ETH_ADDR_LEN);
+ pm.config = 0;
+ pm.mask = 0;
+ pm.advertise = 0;
if (!strcasecmp(argv[3], "up")) {
- opm->mask |= htonl(OFPPC_PORT_DOWN);
+ pm.mask |= OFPUTIL_PC_PORT_DOWN;
} else if (!strcasecmp(argv[3], "down")) {
- opm->mask |= htonl(OFPPC_PORT_DOWN);
- opm->config |= htonl(OFPPC_PORT_DOWN);
+ pm.mask |= OFPUTIL_PC_PORT_DOWN;
+ pm.config |= OFPUTIL_PC_PORT_DOWN;
} else if (!strcasecmp(argv[3], "flood")) {
- opm->mask |= htonl(OFPPC_NO_FLOOD);
+ pm.mask |= OFPUTIL_PC_NO_FLOOD;
} else if (!strcasecmp(argv[3], "noflood")) {
- opm->mask |= htonl(OFPPC_NO_FLOOD);
- opm->config |= htonl(OFPPC_NO_FLOOD);
+ pm.mask |= OFPUTIL_PC_NO_FLOOD;
+ pm.config |= OFPUTIL_PC_NO_FLOOD;
+ } else if (!strcasecmp(argv[3], "forward")) {
+ pm.mask |= OFPUTIL_PC_NO_FWD;
+ } else if (!strcasecmp(argv[3], "noforward")) {
+ pm.mask |= OFPUTIL_PC_NO_FWD;
+ pm.config |= OFPUTIL_PC_NO_FWD;
} else {
ovs_fatal(0, "unknown mod-port command '%s'", argv[3]);
}
+ protocol = open_vconn(argv[1], &vconn);
+ transact_noreply(vconn, ofputil_encode_port_mod(&pm, protocol));
+ vconn_close(vconn);
+}
+
+static void
+do_get_frags(int argc OVS_UNUSED, char *argv[])
+{
+ struct ofp_switch_config config;
+ struct vconn *vconn;
+
open_vconn(argv[1], &vconn);
- transact_noreply(vconn, request);
+ fetch_switch_config(vconn, &config);
+ puts(ofputil_frag_handling_to_string(ntohs(config.flags)));
+ vconn_close(vconn);
+}
+
+static void
+do_set_frags(int argc OVS_UNUSED, char *argv[])
+{
+ struct ofp_switch_config config;
+ enum ofp_config_flags mode;
+ struct vconn *vconn;
+ ovs_be16 flags;
+
+ if (!ofputil_frag_handling_from_string(argv[2], &mode)) {
+ ovs_fatal(0, "%s: unknown fragment handling mode", argv[2]);
+ }
+
+ open_vconn(argv[1], &vconn);
+ fetch_switch_config(vconn, &config);
+ flags = htons(mode) | (config.flags & htons(~OFPC_FRAG_MASK));
+ if (flags != config.flags) {
+ /* Set the configuration. */
+ config.flags = flags;
+ set_switch_config(vconn, &config);
+
+ /* Then retrieve the configuration to see if it really took. OpenFlow
+ * doesn't define error reporting for bad modes, so this is all we can
+ * do. */
+ fetch_switch_config(vconn, &config);
+ if (flags != config.flags) {
+ ovs_fatal(0, "%s: setting fragment handling mode failed (this "
+ "switch probably doesn't support mode \"%s\")",
+ argv[1], ofputil_frag_handling_to_string(mode));
+ }
+ }
vconn_close(vconn);
}
OFPT_ECHO_REQUEST, &request);
random_bytes(rq_hdr + 1, payload);
- gettimeofday(&start, NULL);
+ xgettimeofday(&start);
run(vconn_transact(vconn, ofpbuf_clone(request), &reply), "transact");
- gettimeofday(&end, NULL);
+ xgettimeofday(&end);
rpy_hdr = reply->data;
if (reply->size != request->size
count, message_size, count * message_size);
open_vconn(argv[1], &vconn);
- gettimeofday(&start, NULL);
+ xgettimeofday(&start);
for (i = 0; i < count; i++) {
struct ofpbuf *request, *reply;
struct ofp_header *rq_hdr;
run(vconn_transact(vconn, request, &reply), "transact");
ofpbuf_delete(reply);
}
- gettimeofday(&end, NULL);
+ xgettimeofday(&end);
vconn_close(vconn);
duration = ((1000*(double)(end.tv_sec - start.tv_sec))
usage();
}
\f
-/* Undocumented commands for unit testing. */
+/* replace-flows and diff-flows commands. */
+
+/* A flow table entry, possibly with two different versions. */
+struct fte {
+ struct cls_rule rule; /* Within a "struct classifier". */
+ struct fte_version *versions[2];
+};
+/* One version of a Flow Table Entry. */
+struct fte_version {
+ ovs_be64 cookie;
+ uint16_t idle_timeout;
+ uint16_t hard_timeout;
+ uint16_t flags;
+ union ofp_action *actions;
+ size_t n_actions;
+};
+
+/* Frees 'version' and the data that it owns. */
static void
-do_parse_flows(int argc OVS_UNUSED, char *argv[])
+fte_version_free(struct fte_version *version)
+{
+ if (version) {
+ free(version->actions);
+ free(version);
+ }
+}
+
+/* Returns true if 'a' and 'b' are the same, false if they differ.
+ *
+ * Ignores differences in 'flags' because there's no way to retrieve flags from
+ * an OpenFlow switch. We have to assume that they are the same. */
+static bool
+fte_version_equals(const struct fte_version *a, const struct fte_version *b)
+{
+ return (a->cookie == b->cookie
+ && a->idle_timeout == b->idle_timeout
+ && a->hard_timeout == b->hard_timeout
+ && a->n_actions == b->n_actions
+ && !memcmp(a->actions, b->actions,
+ a->n_actions * sizeof *a->actions));
+}
+
+/* Prints 'version' on stdout. Expects the caller to have printed the rule
+ * associated with the version. */
+static void
+fte_version_print(const struct fte_version *version)
+{
+ struct ds s;
+
+ if (version->cookie != htonll(0)) {
+ printf(" cookie=0x%"PRIx64, ntohll(version->cookie));
+ }
+ if (version->idle_timeout != OFP_FLOW_PERMANENT) {
+ printf(" idle_timeout=%"PRIu16, version->idle_timeout);
+ }
+ if (version->hard_timeout != OFP_FLOW_PERMANENT) {
+ printf(" hard_timeout=%"PRIu16, version->hard_timeout);
+ }
+
+ ds_init(&s);
+ ofp_print_actions(&s, version->actions, version->n_actions);
+ printf(" %s\n", ds_cstr(&s));
+ ds_destroy(&s);
+}
+
+static struct fte *
+fte_from_cls_rule(const struct cls_rule *cls_rule)
+{
+ return cls_rule ? CONTAINER_OF(cls_rule, struct fte, rule) : NULL;
+}
+
+/* Frees 'fte' and its versions. */
+static void
+fte_free(struct fte *fte)
+{
+ if (fte) {
+ fte_version_free(fte->versions[0]);
+ fte_version_free(fte->versions[1]);
+ free(fte);
+ }
+}
+
+/* Frees all of the FTEs within 'cls'. */
+static void
+fte_free_all(struct classifier *cls)
{
- enum nx_flow_format flow_format;
- struct list packets;
+ struct cls_cursor cursor;
+ struct fte *fte, *next;
+
+ cls_cursor_init(&cursor, cls, NULL);
+ CLS_CURSOR_FOR_EACH_SAFE (fte, next, rule, &cursor) {
+ classifier_remove(cls, &fte->rule);
+ fte_free(fte);
+ }
+ classifier_destroy(cls);
+}
+
+/* Searches 'cls' for an FTE matching 'rule', inserting a new one if
+ * necessary. Sets 'version' as the version of that rule with the given
+ * 'index', replacing any existing version, if any.
+ *
+ * Takes ownership of 'version'. */
+static void
+fte_insert(struct classifier *cls, const struct cls_rule *rule,
+ struct fte_version *version, int index)
+{
+ struct fte *old, *fte;
+
+ fte = xzalloc(sizeof *fte);
+ fte->rule = *rule;
+ fte->versions[index] = version;
+
+ old = fte_from_cls_rule(classifier_replace(cls, &fte->rule));
+ if (old) {
+ fte_version_free(old->versions[index]);
+ fte->versions[!index] = old->versions[!index];
+ free(old);
+ }
+}
+
+/* Reads the flows in 'filename' as flow table entries in 'cls' for the version
+ * with the specified 'index'. Returns the flow formats able to represent the
+ * flows that were read. */
+static enum ofputil_protocol
+read_flows_from_file(const char *filename, struct classifier *cls, int index)
+{
+ enum ofputil_protocol usable_protocols;
+ struct ds s;
FILE *file;
- file = fopen(argv[1], "r");
+ file = !strcmp(filename, "-") ? stdin : fopen(filename, "r");
if (file == NULL) {
- ovs_fatal(errno, "%s: open", argv[2]);
+ ovs_fatal(errno, "%s: open", filename);
+ }
+
+ ds_init(&s);
+ usable_protocols = OFPUTIL_P_ANY;
+ while (!ds_get_preprocessed_line(&s, file)) {
+ struct fte_version *version;
+ struct ofputil_flow_mod fm;
+
+ parse_ofp_str(&fm, OFPFC_ADD, ds_cstr(&s), true);
+
+ version = xmalloc(sizeof *version);
+ version->cookie = fm.cookie;
+ version->idle_timeout = fm.idle_timeout;
+ version->hard_timeout = fm.hard_timeout;
+ version->flags = fm.flags & (OFPFF_SEND_FLOW_REM | OFPFF_EMERG);
+ version->actions = fm.actions;
+ version->n_actions = fm.n_actions;
+
+ usable_protocols &= ofputil_usable_protocols(&fm.cr);
+
+ fte_insert(cls, &fm.cr, version, index);
+ }
+ ds_destroy(&s);
+
+ if (file != stdin) {
+ fclose(file);
+ }
+
+ return usable_protocols;
+}
+
+/* Reads the OpenFlow flow table from 'vconn', which has currently active flow
+ * format 'protocol', and adds them as flow table entries in 'cls' for the
+ * version with the specified 'index'. */
+static void
+read_flows_from_switch(struct vconn *vconn,
+ enum ofputil_protocol protocol,
+ struct classifier *cls, int index)
+{
+ struct ofputil_flow_stats_request fsr;
+ struct ofpbuf *request;
+ ovs_be32 send_xid;
+ bool done;
+
+ fsr.aggregate = false;
+ cls_rule_init_catchall(&fsr.match, 0);
+ fsr.out_port = OFPP_NONE;
+ fsr.table_id = 0xff;
+ fsr.cookie = fsr.cookie_mask = htonll(0);
+ request = ofputil_encode_flow_stats_request(&fsr, protocol);
+ send_xid = ((struct ofp_header *) request->data)->xid;
+ send_openflow_buffer(vconn, request);
+
+ done = false;
+ while (!done) {
+ ovs_be32 recv_xid;
+ struct ofpbuf *reply;
+
+ run(vconn_recv_block(vconn, &reply), "OpenFlow packet receive failed");
+ recv_xid = ((struct ofp_header *) reply->data)->xid;
+ if (send_xid == recv_xid) {
+ const struct ofputil_msg_type *type;
+ const struct ofp_stats_msg *osm;
+ enum ofputil_msg_code code;
+
+ ofputil_decode_msg_type(reply->data, &type);
+ code = ofputil_msg_type_code(type);
+ if (code != OFPUTIL_OFPST_FLOW_REPLY &&
+ code != OFPUTIL_NXST_FLOW_REPLY) {
+ ovs_fatal(0, "received bad reply: %s",
+ ofp_to_string(reply->data, reply->size,
+ verbosity + 1));
+ }
+
+ osm = reply->data;
+ if (!(osm->flags & htons(OFPSF_REPLY_MORE))) {
+ done = true;
+ }
+
+ for (;;) {
+ struct fte_version *version;
+ struct ofputil_flow_stats fs;
+ int retval;
+
+ retval = ofputil_decode_flow_stats_reply(&fs, reply, false);
+ if (retval) {
+ if (retval != EOF) {
+ ovs_fatal(0, "parse error in reply");
+ }
+ break;
+ }
+
+ version = xmalloc(sizeof *version);
+ version->cookie = fs.cookie;
+ version->idle_timeout = fs.idle_timeout;
+ version->hard_timeout = fs.hard_timeout;
+ version->flags = 0;
+ version->n_actions = fs.n_actions;
+ version->actions = xmemdup(fs.actions,
+ fs.n_actions * sizeof *fs.actions);
+
+ fte_insert(cls, &fs.rule, version, index);
+ }
+ } else {
+ VLOG_DBG("received reply with xid %08"PRIx32" "
+ "!= expected %08"PRIx32, recv_xid, send_xid);
+ }
+ ofpbuf_delete(reply);
+ }
+}
+
+static void
+fte_make_flow_mod(const struct fte *fte, int index, uint16_t command,
+ enum ofputil_protocol protocol, struct list *packets)
+{
+ const struct fte_version *version = fte->versions[index];
+ struct ofputil_flow_mod fm;
+ struct ofpbuf *ofm;
+
+ fm.cr = fte->rule;
+ fm.cookie = version->cookie;
+ fm.table_id = 0xff;
+ fm.command = command;
+ fm.idle_timeout = version->idle_timeout;
+ fm.hard_timeout = version->hard_timeout;
+ fm.buffer_id = UINT32_MAX;
+ fm.out_port = OFPP_NONE;
+ fm.flags = version->flags;
+ if (command == OFPFC_ADD || command == OFPFC_MODIFY ||
+ command == OFPFC_MODIFY_STRICT) {
+ fm.actions = version->actions;
+ fm.n_actions = version->n_actions;
+ } else {
+ fm.actions = NULL;
+ fm.n_actions = 0;
}
- list_init(&packets);
- flow_format = NXFF_OPENFLOW10;
- if (preferred_flow_format > 0) {
- flow_format = preferred_flow_format;
+ ofm = ofputil_encode_flow_mod(&fm, protocol);
+ list_push_back(packets, &ofm->list_node);
+}
+
+static void
+do_replace_flows(int argc OVS_UNUSED, char *argv[])
+{
+ enum { FILE_IDX = 0, SWITCH_IDX = 1 };
+ enum ofputil_protocol usable_protocols, protocol;
+ struct cls_cursor cursor;
+ struct classifier cls;
+ struct list requests;
+ struct vconn *vconn;
+ struct fte *fte;
+
+ classifier_init(&cls);
+ usable_protocols = read_flows_from_file(argv[2], &cls, FILE_IDX);
+
+ protocol = open_vconn(argv[1], &vconn);
+ protocol = set_protocol_for_flow_dump(vconn, protocol, usable_protocols);
+
+ read_flows_from_switch(vconn, protocol, &cls, SWITCH_IDX);
+
+ list_init(&requests);
+
+ /* Delete flows that exist on the switch but not in the file. */
+ cls_cursor_init(&cursor, &cls, NULL);
+ CLS_CURSOR_FOR_EACH (fte, rule, &cursor) {
+ struct fte_version *file_ver = fte->versions[FILE_IDX];
+ struct fte_version *sw_ver = fte->versions[SWITCH_IDX];
+
+ if (sw_ver && !file_ver) {
+ fte_make_flow_mod(fte, SWITCH_IDX, OFPFC_DELETE_STRICT,
+ protocol, &requests);
+ }
+ }
+
+ /* Add flows that exist in the file but not on the switch.
+ * Update flows that exist in both places but differ. */
+ cls_cursor_init(&cursor, &cls, NULL);
+ CLS_CURSOR_FOR_EACH (fte, rule, &cursor) {
+ struct fte_version *file_ver = fte->versions[FILE_IDX];
+ struct fte_version *sw_ver = fte->versions[SWITCH_IDX];
+
+ if (file_ver
+ && (readd || !sw_ver || !fte_version_equals(sw_ver, file_ver))) {
+ fte_make_flow_mod(fte, FILE_IDX, OFPFC_ADD, protocol, &requests);
+ }
+ }
+ transact_multiple_noreply(vconn, &requests);
+ vconn_close(vconn);
+
+ fte_free_all(&cls);
+}
+
+static void
+read_flows_from_source(const char *source, struct classifier *cls, int index)
+{
+ struct stat s;
+
+ if (source[0] == '/' || source[0] == '.'
+ || (!strchr(source, ':') && !stat(source, &s))) {
+ read_flows_from_file(source, cls, index);
+ } else {
+ enum ofputil_protocol protocol;
+ struct vconn *vconn;
+
+ protocol = open_vconn(source, &vconn);
+ protocol = set_protocol_for_flow_dump(vconn, protocol, OFPUTIL_P_ANY);
+ read_flows_from_switch(vconn, protocol, cls, index);
+ vconn_close(vconn);
+ }
+}
+
+static void
+do_diff_flows(int argc OVS_UNUSED, char *argv[])
+{
+ bool differences = false;
+ struct cls_cursor cursor;
+ struct classifier cls;
+ struct fte *fte;
+
+ classifier_init(&cls);
+ read_flows_from_source(argv[1], &cls, 0);
+ read_flows_from_source(argv[2], &cls, 1);
+
+ cls_cursor_init(&cursor, &cls, NULL);
+ CLS_CURSOR_FOR_EACH (fte, rule, &cursor) {
+ struct fte_version *a = fte->versions[0];
+ struct fte_version *b = fte->versions[1];
+
+ if (!a || !b || !fte_version_equals(a, b)) {
+ char *rule_s = cls_rule_to_string(&fte->rule);
+ if (a) {
+ printf("-%s", rule_s);
+ fte_version_print(a);
+ }
+ if (b) {
+ printf("+%s", rule_s);
+ fte_version_print(b);
+ }
+ free(rule_s);
+
+ differences = true;
+ }
}
- while (parse_ofp_add_flow_file(&packets, &flow_format, file)) {
- struct ofpbuf *packet, *next;
+ fte_free_all(&cls);
- LIST_FOR_EACH_SAFE (packet, next, list_node, &packets) {
- ofp_print(stdout, packet->data, packet->size, verbosity);
- list_remove(&packet->list_node);
- ofpbuf_delete(packet);
+ if (differences) {
+ exit(2);
+ }
+}
+\f
+/* Undocumented commands for unit testing. */
+
+static void
+do_parse_flows__(struct ofputil_flow_mod *fms, size_t n_fms)
+{
+ enum ofputil_protocol usable_protocols;
+ enum ofputil_protocol protocol = 0;
+ char *usable_s;
+ size_t i;
+
+ usable_protocols = ofputil_flow_mod_usable_protocols(fms, n_fms);
+ usable_s = ofputil_protocols_to_string(usable_protocols);
+ printf("usable protocols: %s\n", usable_s);
+ free(usable_s);
+
+ if (!(usable_protocols & allowed_protocols)) {
+ ovs_fatal(0, "no usable protocol");
+ }
+ for (i = 0; i < sizeof(enum ofputil_protocol) * CHAR_BIT; i++) {
+ protocol = 1 << i;
+ if (protocol & usable_protocols & allowed_protocols) {
+ break;
}
}
- fclose(file);
+ assert(IS_POW2(protocol));
+
+ printf("chosen protocol: %s\n", ofputil_protocol_to_string(protocol));
+
+ for (i = 0; i < n_fms; i++) {
+ struct ofputil_flow_mod *fm = &fms[i];
+ struct ofpbuf *msg;
+
+ msg = ofputil_encode_flow_mod(fm, protocol);
+ ofp_print(stdout, msg->data, msg->size, verbosity);
+ ofpbuf_delete(msg);
+
+ free(fm->actions);
+ }
}
+/* "parse-flow FLOW": parses the argument as a flow (like add-flow) and prints
+ * it back to stdout. */
+static void
+do_parse_flow(int argc OVS_UNUSED, char *argv[])
+{
+ struct ofputil_flow_mod fm;
+
+ parse_ofp_flow_mod_str(&fm, argv[1], OFPFC_ADD, false);
+ do_parse_flows__(&fm, 1);
+}
+
+/* "parse-flows FILENAME": reads the named file as a sequence of flows (like
+ * add-flows) and prints each of the flows back to stdout. */
+static void
+do_parse_flows(int argc OVS_UNUSED, char *argv[])
+{
+ struct ofputil_flow_mod *fms = NULL;
+ size_t n_fms = 0;
+
+ parse_ofp_flow_mod_file(argv[1], OFPFC_ADD, &fms, &n_fms);
+ do_parse_flows__(fms, n_fms);
+ free(fms);
+}
+
+/* "parse-nx-match": reads a series of nx_match specifications as strings from
+ * stdin, does some internal fussing with them, and then prints them back as
+ * strings on stdout. */
static void
do_parse_nx_match(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
{
while (!ds_get_line(&in, stdin)) {
struct ofpbuf nx_match;
struct cls_rule rule;
+ ovs_be64 cookie, cookie_mask;
+ enum ofperr error;
int match_len;
- int error;
char *s;
/* Delete comments, skip blank lines. */
match_len = nx_match_from_string(ds_cstr(&in), &nx_match);
/* Convert nx_match to cls_rule. */
- error = nx_pull_match(&nx_match, match_len, 0, &rule);
+ if (strict) {
+ error = nx_pull_match(&nx_match, match_len, 0, &rule,
+ &cookie, &cookie_mask);
+ } else {
+ error = nx_pull_match_loose(&nx_match, match_len, 0, &rule,
+ &cookie, &cookie_mask);
+ }
+
if (!error) {
char *out;
/* Convert cls_rule back to nx_match. */
ofpbuf_uninit(&nx_match);
ofpbuf_init(&nx_match, 0);
- match_len = nx_put_match(&nx_match, &rule);
+ match_len = nx_put_match(&nx_match, &rule, cookie, cookie_mask);
/* Convert nx_match to string. */
out = nx_match_to_string(nx_match.data, match_len);
puts(out);
free(out);
} else {
- printf("nx_pull_match() returned error %x\n", error);
+ printf("nx_pull_match() returned error %s\n",
+ ofperr_get_name(error));
}
ofpbuf_uninit(&nx_match);
ds_destroy(&in);
}
+/* "print-error ENUM": Prints the type and code of ENUM for every OpenFlow
+ * version. */
+static void
+do_print_error(int argc OVS_UNUSED, char *argv[])
+{
+ enum ofperr error;
+ int version;
+
+ error = ofperr_from_name(argv[1]);
+ if (!error) {
+ ovs_fatal(0, "unknown error \"%s\"", argv[1]);
+ }
+
+ for (version = 0; version <= UINT8_MAX; version++) {
+ const struct ofperr_domain *domain;
+
+ domain = ofperr_domain_from_version(version);
+ if (!domain) {
+ continue;
+ }
+
+ printf("%s: %d,%d\n",
+ ofperr_domain_get_name(domain),
+ ofperr_get_type(error, domain),
+ ofperr_get_code(error, domain));
+ }
+}
+
+/* "ofp-print HEXSTRING [VERBOSITY]": Converts the hex digits in HEXSTRING into
+ * binary data, interpreting them as an OpenFlow message, and prints the
+ * OpenFlow message on stdout, at VERBOSITY (level 2 by default). */
+static void
+do_ofp_print(int argc, char *argv[])
+{
+ struct ofpbuf packet;
+
+ ofpbuf_init(&packet, strlen(argv[1]) / 2);
+ if (ofpbuf_put_hex(&packet, argv[1], NULL)[0] != '\0') {
+ ovs_fatal(0, "trailing garbage following hex bytes");
+ }
+ ofp_print(stdout, packet.data, packet.size, argc > 2 ? atoi(argv[2]) : 2);
+ ofpbuf_uninit(&packet);
+}
+
static const struct command all_commands[] = {
{ "show", 1, 1, do_show },
- { "status", 1, 2, do_status },
- { "monitor", 1, 2, do_monitor },
+ { "monitor", 1, 3, do_monitor },
{ "snoop", 1, 1, do_snoop },
{ "dump-desc", 1, 1, do_dump_desc },
{ "dump-tables", 1, 1, do_dump_tables },
{ "add-flows", 2, 2, do_add_flows },
{ "mod-flows", 2, 2, do_mod_flows },
{ "del-flows", 1, 2, do_del_flows },
+ { "replace-flows", 2, 2, do_replace_flows },
+ { "diff-flows", 2, 2, do_diff_flows },
+ { "packet-out", 4, INT_MAX, do_packet_out },
{ "dump-ports", 1, 2, do_dump_ports },
{ "mod-port", 3, 3, do_mod_port },
+ { "get-frags", 1, 1, do_get_frags },
+ { "set-frags", 2, 2, do_set_frags },
{ "probe", 1, 1, do_probe },
{ "ping", 1, 2, do_ping },
{ "benchmark", 3, 3, do_benchmark },
{ "help", 0, INT_MAX, do_help },
/* Undocumented commands for testing. */
+ { "parse-flow", 1, 1, do_parse_flow },
{ "parse-flows", 1, 1, do_parse_flows },
{ "parse-nx-match", 0, 0, do_parse_nx_match },
+ { "print-error", 1, 1, do_print_error },
+ { "ofp-print", 1, 2, do_ofp_print },
{ NULL, 0, 0, NULL },
};
git://git.onelab.eu / sliver-openvswitch.git / blobdiff