diff options
Diffstat (limited to 'utilities/ovs-ofctl.c')
| -rw-r--r-- | utilities/ovs-ofctl.c | 1278 |
1 files changed, 1278 insertions, 0 deletions
diff --git a/utilities/ovs-ofctl.c b/utilities/ovs-ofctl.c new file mode 100644 index 000000000..8b343956d --- /dev/null +++ b/utilities/ovs-ofctl.c @@ -0,0 +1,1278 @@ +/* + * Copyright (c) 2008, 2009 Nicira Networks. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include <config.h> +#include <arpa/inet.h> +#include <errno.h> +#include <getopt.h> +#include <inttypes.h> +#include <net/if.h> +#include <netinet/in.h> +#include <signal.h> +#include <stdarg.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <sys/stat.h> +#include <sys/time.h> + +#include "command-line.h" +#include "compiler.h" +#include "dirs.h" +#include "dpif.h" +#include "dynamic-string.h" +#include "netdev.h" +#include "netlink.h" +#include "odp-util.h" +#include "ofp-print.h" +#include "ofpbuf.h" +#include "openflow/nicira-ext.h" +#include "openflow/openflow.h" +#include "packets.h" +#include "random.h" +#include "socket-util.h" +#include "timeval.h" +#include "util.h" +#include "vconn-ssl.h" +#include "vconn.h" + +#include "vlog.h" +#define THIS_MODULE VLM_ofctl + +#define DEFAULT_IDLE_TIMEOUT 60 + +#define MOD_PORT_CMD_UP "up" +#define MOD_PORT_CMD_DOWN "down" +#define MOD_PORT_CMD_FLOOD "flood" +#define MOD_PORT_CMD_NOFLOOD "noflood" + + +/* Settings that may be configured by the user. */ +struct settings { + bool strict; /* Use strict matching for flow mod commands */ +}; + +struct command { + const char *name; + int min_args; + int max_args; + void (*handler)(const struct settings *, int argc, char *argv[]); +}; + +static struct command all_commands[]; + +static void usage(void) NO_RETURN; +static void parse_options(int argc, char *argv[], struct settings *); + +int main(int argc, char *argv[]) +{ + struct settings s; + struct command *p; + + set_program_name(argv[0]); + time_init(); + vlog_init(); + parse_options(argc, argv, &s); + signal(SIGPIPE, SIG_IGN); + + argc -= optind; + argv += optind; + if (argc < 1) + ovs_fatal(0, "missing command name; use --help for help"); + + for (p = all_commands; p->name != NULL; p++) { + if (!strcmp(p->name, argv[0])) { + int n_arg = argc - 1; + if (n_arg < p->min_args) + ovs_fatal(0, "'%s' command requires at least %d arguments", + p->name, p->min_args); + else if (n_arg > p->max_args) + ovs_fatal(0, "'%s' command takes at most %d arguments", + p->name, p->max_args); + else { + p->handler(&s, argc, argv); + if (ferror(stdout)) { + ovs_fatal(0, "write to stdout failed"); + } + if (ferror(stderr)) { + ovs_fatal(0, "write to stderr failed"); + } + exit(0); + } + } + } + ovs_fatal(0, "unknown command '%s'; use --help for help", argv[0]); + + return 0; +} + +static void +parse_options(int argc, char *argv[], struct settings *s) +{ + enum { + OPT_STRICT = UCHAR_MAX + 1 + }; + static struct option long_options[] = { + {"timeout", required_argument, 0, 't'}, + {"verbose", optional_argument, 0, 'v'}, + {"strict", no_argument, 0, OPT_STRICT}, + {"help", no_argument, 0, 'h'}, + {"version", no_argument, 0, 'V'}, + VCONN_SSL_LONG_OPTIONS + {0, 0, 0, 0}, + }; + char *short_options = long_options_to_short_options(long_options); + + /* Set defaults that we can figure out before parsing options. */ + s->strict = false; + + for (;;) { + unsigned long int timeout; + int c; + + c = getopt_long(argc, argv, short_options, long_options, NULL); + if (c == -1) { + break; + } + + switch (c) { + case 't': + timeout = strtoul(optarg, NULL, 10); + if (timeout <= 0) { + ovs_fatal(0, "value %s on -t or --timeout is not at least 1", + optarg); + } else { + time_alarm(timeout); + } + break; + + case 'h': + usage(); + + case 'V': + OVS_PRINT_VERSION(OFP_VERSION, OFP_VERSION); + exit(EXIT_SUCCESS); + + case 'v': + vlog_set_verbosity(optarg); + break; + + case OPT_STRICT: + s->strict = true; + break; + + VCONN_SSL_OPTION_HANDLERS + + case '?': + exit(EXIT_FAILURE); + + default: + abort(); + } + } + free(short_options); +} + +static void +usage(void) +{ + printf("%s: OpenFlow switch management utility\n" + "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" + " 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" + " mod-flows SWITCH FLOW modify actions of matching FLOWs\n" + " del-flows SWITCH [FLOW] delete matching FLOWs\n" + " monitor SWITCH MISSLEN EXP print packets received from SWITCH\n" + " execute SWITCH CMD [ARG...] execute CMD with ARGS on SWITCH\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", + program_name, program_name); + vconn_usage(true, false, false); + vlog_usage(); + printf("\nOther options:\n" + " --strict use strict match for flow commands\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 run(int retval, const char *message, ...) + PRINTF_FORMAT(2, 3); + +static void run(int retval, const char *message, ...) +{ + 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); + } +} + +/* Generic commands. */ + +static void +open_vconn(const char *name, struct vconn **vconnp) +{ + struct dpif dpif; + struct stat s; + + if (strstr(name, ":")) { + run(vconn_open_block(name, OFP_VERSION, vconnp), + "connecting to %s", name); + } else if (!stat(name, &s) && S_ISSOCK(s.st_mode)) { + char *vconn_name = xasprintf("unix:%s", name); + VLOG_INFO("connecting to %s", vconn_name); + run(vconn_open_block(vconn_name, OFP_VERSION, vconnp), + "connecting to %s", vconn_name); + free(vconn_name); + } else if (!dpif_open(name, &dpif)) { + char dpif_name[IF_NAMESIZE + 1]; + char *socket_name; + char *vconn_name; + + run(dpif_get_name(&dpif, dpif_name, sizeof dpif_name), + "obtaining name of %s", dpif_name); + dpif_close(&dpif); + if (strcmp(dpif_name, name)) { + VLOG_INFO("datapath %s is named %s", name, dpif_name); + } + + socket_name = xasprintf("%s/%s.mgmt", ovs_rundir, dpif_name); + 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)) { + ovs_fatal(0, "cannot connect to %s: %s is not a socket", + name, socket_name); + } + + vconn_name = xasprintf("unix:%s", socket_name); + VLOG_INFO("connecting to %s", vconn_name); + run(vconn_open_block(vconn_name, OFP_VERSION, vconnp), + "connecting to %s", vconn_name); + free(socket_name); + free(vconn_name); + } else { + ovs_fatal(0, "%s is not a valid connection method", name); + } +} + +static void * +alloc_stats_request(size_t body_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); + rq->type = htons(type); + rq->flags = htons(0); + return rq->body; +} + +static void +send_openflow_buffer(struct vconn *vconn, struct ofpbuf *buffer) +{ + update_openflow_length(buffer); + run(vconn_send_block(vconn, buffer), "failed to send packet to switch"); +} + +static void +dump_transaction(const char *vconn_name, struct ofpbuf *request) +{ + struct vconn *vconn; + struct ofpbuf *reply; + + update_openflow_length(request); + open_vconn(vconn_name, &vconn); + run(vconn_transact(vconn, request, &reply), "talking to %s", vconn_name); + 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 ofpbuf *request; + make_openflow(sizeof(struct ofp_header), request_type, &request); + dump_transaction(vconn_name, request); +} + +static void +dump_stats_transaction(const char *vconn_name, struct ofpbuf *request) +{ + uint32_t send_xid = ((struct ofp_header *) request->data)->xid; + struct vconn *vconn; + bool done = false; + + open_vconn(vconn_name, &vconn); + send_openflow_buffer(vconn, request); + while (!done) { + uint32_t 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; + + ofp_print(stdout, reply->data, reply->size, 1); + + osr = ofpbuf_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); + } + ofpbuf_delete(reply); + } + vconn_close(vconn); +} + +static void +dump_trivial_stats_transaction(const char *vconn_name, uint8_t stats_type) +{ + struct ofpbuf *request; + alloc_stats_request(0, stats_type, &request); + dump_stats_transaction(vconn_name, request); +} + +static void +do_show(const struct settings *s UNUSED, 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_status(const struct settings *s UNUSED, int argc, char *argv[]) +{ + struct nicira_header *request, *reply; + struct vconn *vconn; + struct ofpbuf *b; + + request = make_openflow(sizeof *request, OFPT_VENDOR, &b); + request->vendor = htonl(NX_VENDOR_ID); + request->subtype = htonl(NXT_STATUS_REQUEST); + 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); + + 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, 2); + ovs_fatal(0, "bad reply"); + } + + fwrite(reply + 1, b->size - sizeof *reply, 1, stdout); +} + +static void +do_dump_desc(const struct settings *s UNUSED, int argc UNUSED, char *argv[]) +{ + dump_trivial_stats_transaction(argv[1], OFPST_DESC); +} + +static void +do_dump_tables(const struct settings *s UNUSED, int argc UNUSED, char *argv[]) +{ + dump_trivial_stats_transaction(argv[1], OFPST_TABLE); +} + + +static uint32_t +str_to_u32(const char *str) +{ + char *tail; + uint32_t value; + + errno = 0; + value = strtoul(str, &tail, 0); + if (errno == EINVAL || errno == ERANGE || *tail) { + ovs_fatal(0, "invalid numeric format %s", str); + } + return value; +} + +static void +str_to_mac(const char *str, uint8_t mac[6]) +{ + if (sscanf(str, "%"SCNx8":%"SCNx8":%"SCNx8":%"SCNx8":%"SCNx8":%"SCNx8, + &mac[0], &mac[1], &mac[2], &mac[3], &mac[4], &mac[5]) != 6) { + ovs_fatal(0, "invalid mac address %s", str); + } +} + +static uint32_t +str_to_ip(const char *str_, uint32_t *ip) +{ + char *str = xstrdup(str_); + char *save_ptr = NULL; + const char *name, *netmask; + struct in_addr in_addr; + int n_wild, retval; + + name = strtok_r(str, "//", &save_ptr); + retval = name ? lookup_ip(name, &in_addr) : EINVAL; + if (retval) { + ovs_fatal(0, "%s: could not convert to IP address", str); + } + *ip = in_addr.s_addr; + + netmask = strtok_r(NULL, "//", &save_ptr); + if (netmask) { + uint8_t o[4]; + if (sscanf(netmask, "%"SCNu8".%"SCNu8".%"SCNu8".%"SCNu8, + &o[0], &o[1], &o[2], &o[3]) == 4) { + uint32_t nm = (o[0] << 24) | (o[1] << 16) | (o[2] << 8) | o[3]; + int i; + + /* Find first 1-bit. */ + for (i = 0; i < 32; i++) { + if (nm & (1u << i)) { + break; + } + } + n_wild = i; + + /* Verify that the rest of the bits are 1-bits. */ + for (; i < 32; i++) { + if (!(nm & (1u << i))) { + ovs_fatal(0, "%s: %s is not a valid netmask", + str, netmask); + } + } + } else { + int prefix = atoi(netmask); + if (prefix <= 0 || prefix > 32) { + ovs_fatal(0, "%s: network prefix bits not between 1 and 32", + str); + } + n_wild = 32 - prefix; + } + } else { + n_wild = 0; + } + + free(str); + return n_wild; +} + +static void * +put_action(struct ofpbuf *b, size_t size, uint16_t type) +{ + struct ofp_action_header *ah = ofpbuf_put_zeros(b, size); + ah->type = htons(type); + ah->len = htons(size); + return ah; +} + +static struct ofp_action_output * +put_output_action(struct ofpbuf *b, uint16_t port) +{ + struct ofp_action_output *oao = put_action(b, sizeof *oao, OFPAT_OUTPUT); + oao->port = htons(port); + return oao; +} + +static void +put_dl_addr_action(struct ofpbuf *b, uint16_t type, const char *addr) +{ + struct ofp_action_dl_addr *oada = put_action(b, sizeof *oada, type); + str_to_mac(addr, oada->dl_addr); +} + + +static bool +parse_port_name(const char *name, uint16_t *port) +{ + struct pair { + const char *name; + uint16_t value; + }; + static const struct pair pairs[] = { +#define DEF_PAIR(NAME) {#NAME, OFPP_##NAME} + DEF_PAIR(IN_PORT), + DEF_PAIR(TABLE), + DEF_PAIR(NORMAL), + DEF_PAIR(FLOOD), + DEF_PAIR(ALL), + DEF_PAIR(CONTROLLER), + DEF_PAIR(LOCAL), + DEF_PAIR(NONE), +#undef DEF_PAIR + }; + static const int n_pairs = ARRAY_SIZE(pairs); + size_t i; + + for (i = 0; i < n_pairs; i++) { + if (!strcasecmp(name, pairs[i].name)) { + *port = pairs[i].value; + return true; + } + } + return false; +} + +static void +str_to_action(char *str, struct ofpbuf *b) +{ + char *act, *arg; + char *saveptr = NULL; + bool drop = false; + int n_actions; + + for (act = strtok_r(str, ", \t\r\n", &saveptr), n_actions = 0; act; + act = strtok_r(NULL, ", \t\r\n", &saveptr), n_actions++) + { + uint16_t port; + + if (drop) { + ovs_fatal(0, "Drop actions must not be followed by other actions"); + } + + /* Arguments are separated by colons */ + arg = strchr(act, ':'); + if (arg) { + *arg = '\0'; + arg++; + } + + if (!strcasecmp(act, "mod_vlan_vid")) { + struct ofp_action_vlan_vid *va; + va = put_action(b, sizeof *va, OFPAT_SET_VLAN_VID); + va->vlan_vid = htons(str_to_u32(arg)); + } else if (!strcasecmp(act, "mod_vlan_pcp")) { + struct ofp_action_vlan_pcp *va; + va = put_action(b, sizeof *va, OFPAT_SET_VLAN_PCP); + va->vlan_pcp = str_to_u32(arg); + } else if (!strcasecmp(act, "strip_vlan")) { + struct ofp_action_header *ah; + ah = put_action(b, sizeof *ah, OFPAT_STRIP_VLAN); + ah->type = htons(OFPAT_STRIP_VLAN); + } else if (!strcasecmp(act, "mod_dl_src")) { + put_dl_addr_action(b, OFPAT_SET_DL_SRC, arg); + } else if (!strcasecmp(act, "mod_dl_dst")) { + put_dl_addr_action(b, OFPAT_SET_DL_DST, arg); + } else if (!strcasecmp(act, "output")) { + put_output_action(b, str_to_u32(arg)); + } else if (!strcasecmp(act, "drop")) { + /* A drop action in OpenFlow occurs by just not setting + * an action. */ + drop = true; + if (n_actions) { + ovs_fatal(0, "Drop actions must not be preceded by other " + "actions"); + } + } else if (!strcasecmp(act, "CONTROLLER")) { + struct ofp_action_output *oao; + oao = put_output_action(b, OFPP_CONTROLLER); + + /* Unless a numeric argument is specified, we send the whole + * packet to the controller. */ + if (arg && (strspn(act, "0123456789") == strlen(act))) { + oao->max_len = htons(str_to_u32(arg)); + } + } else if (parse_port_name(act, &port)) { + put_output_action(b, port); + } else if (strspn(act, "0123456789") == strlen(act)) { + put_output_action(b, str_to_u32(act)); + } else { + ovs_fatal(0, "Unknown action: %s", act); + } + } +} + +struct protocol { + const char *name; + uint16_t dl_type; + uint8_t nw_proto; +}; + +static bool +parse_protocol(const char *name, const struct protocol **p_out) +{ + static const struct protocol protocols[] = { + { "ip", ETH_TYPE_IP, 0 }, + { "arp", ETH_TYPE_ARP, 0 }, + { "icmp", ETH_TYPE_IP, IP_TYPE_ICMP }, + { "tcp", ETH_TYPE_IP, IP_TYPE_TCP }, + { "udp", ETH_TYPE_IP, IP_TYPE_UDP }, + }; + const struct protocol *p; + + for (p = protocols; p < &protocols[ARRAY_SIZE(protocols)]; p++) { + if (!strcmp(p->name, name)) { + *p_out = p; + return true; + } + } + *p_out = NULL; + return false; +} + +struct field { + const char *name; + uint32_t wildcard; + enum { F_U8, F_U16, F_MAC, F_IP } type; + size_t offset, shift; +}; + +static bool +parse_field(const char *name, const struct field **f_out) +{ +#define F_OFS(MEMBER) offsetof(struct ofp_match, MEMBER) + static const struct field fields[] = { + { "in_port", OFPFW_IN_PORT, F_U16, F_OFS(in_port), 0 }, + { "dl_vlan", OFPFW_DL_VLAN, F_U16, F_OFS(dl_vlan), 0 }, + { "dl_src", OFPFW_DL_SRC, F_MAC, F_OFS(dl_src), 0 }, + { "dl_dst", OFPFW_DL_DST, F_MAC, F_OFS(dl_dst), 0 }, + { "dl_type", OFPFW_DL_TYPE, F_U16, F_OFS(dl_type), 0 }, + { "nw_src", OFPFW_NW_SRC_MASK, F_IP, + F_OFS(nw_src), OFPFW_NW_SRC_SHIFT }, + { "nw_dst", OFPFW_NW_DST_MASK, F_IP, + F_OFS(nw_dst), OFPFW_NW_DST_SHIFT }, + { "nw_proto", OFPFW_NW_PROTO, F_U8, F_OFS(nw_proto), 0 }, + { "tp_src", OFPFW_TP_SRC, F_U16, F_OFS(tp_src), 0 }, + { "tp_dst", OFPFW_TP_DST, F_U16, F_OFS(tp_dst), 0 }, + { "icmp_type", OFPFW_ICMP_TYPE, F_U16, F_OFS(icmp_type), 0 }, + { "icmp_code", OFPFW_ICMP_CODE, F_U16, F_OFS(icmp_code), 0 } + }; + const struct field *f; + + for (f = fields; f < &fields[ARRAY_SIZE(fields)]; f++) { + if (!strcmp(f->name, name)) { + *f_out = f; + return true; + } + } + *f_out = NULL; + return false; +} + +static void +str_to_flow(char *string, struct ofp_match *match, struct ofpbuf *actions, + uint8_t *table_idx, uint16_t *out_port, uint16_t *priority, + uint16_t *idle_timeout, uint16_t *hard_timeout) +{ + char *save_ptr = NULL; + char *name; + uint32_t wildcards; + + if (table_idx) { + *table_idx = 0xff; + } + if (out_port) { + *out_port = OFPP_NONE; + } + if (priority) { + *priority = OFP_DEFAULT_PRIORITY; + } + if (idle_timeout) { + *idle_timeout = DEFAULT_IDLE_TIMEOUT; + } + if (hard_timeout) { + *hard_timeout = OFP_FLOW_PERMANENT; + } + if (actions) { + char *act_str = strstr(string, "action"); + if (!act_str) { + ovs_fatal(0, "must specify an action"); + } + *(act_str-1) = '\0'; + + act_str = strchr(act_str, '='); + if (!act_str) { + ovs_fatal(0, "must specify an action"); + } + + act_str++; + + str_to_action(act_str, actions); + } + memset(match, 0, sizeof *match); + wildcards = OFPFW_ALL; + for (name = strtok_r(string, "=, \t\r\n", &save_ptr); name; + name = strtok_r(NULL, "=, \t\r\n", &save_ptr)) { + const struct protocol *p; + + if (parse_protocol(name, &p)) { + wildcards &= ~OFPFW_DL_TYPE; + match->dl_type = htons(p->dl_type); + if (p->nw_proto) { + wildcards &= ~OFPFW_NW_PROTO; + match->nw_proto = p->nw_proto; + } + } else { + const struct field *f; + char *value; + + value = strtok_r(NULL, ", \t\r\n", &save_ptr); + if (!value) { + ovs_fatal(0, "field %s missing value", name); + } + + if (table_idx && !strcmp(name, "table")) { + *table_idx = atoi(value); + } else if (out_port && !strcmp(name, "out_port")) { + *out_port = atoi(value); + } else if (priority && !strcmp(name, "priority")) { + *priority = atoi(value); + } else if (idle_timeout && !strcmp(name, "idle_timeout")) { + *idle_timeout = atoi(value); + } else if (hard_timeout && !strcmp(name, "hard_timeout")) { + *hard_timeout = atoi(value); + } else if (parse_field(name, &f)) { + void *data = (char *) match + f->offset; + if (!strcmp(value, "*") || !strcmp(value, "ANY")) { + wildcards |= f->wildcard; + } else { + wildcards &= ~f->wildcard; + if (f->wildcard == OFPFW_IN_PORT + && parse_port_name(value, (uint16_t *) data)) { + /* Nothing to do. */ + } else if (f->type == F_U8) { + *(uint8_t *) data = str_to_u32(value); + } else if (f->type == F_U16) { + *(uint16_t *) data = htons(str_to_u32(value)); + } else if (f->type == F_MAC) { + str_to_mac(value, data); + } else if (f->type == F_IP) { + wildcards |= str_to_ip(value, data) << f->shift; + } else { + NOT_REACHED(); + } + } + } else { + ovs_fatal(0, "unknown keyword %s", name); + } + } + } + match->wildcards = htonl(wildcards); +} + +static void +do_dump_flows(const struct settings *s UNUSED, int argc, char *argv[]) +{ + struct ofp_flow_stats_request *req; + uint16_t out_port; + struct ofpbuf *request; + + req = alloc_stats_request(sizeof *req, OFPST_FLOW, &request); + str_to_flow(argc > 2 ? argv[2] : "", &req->match, NULL, + &req->table_id, &out_port, NULL, NULL, NULL); + memset(&req->pad, 0, sizeof req->pad); + req->out_port = htons(out_port); + + dump_stats_transaction(argv[1], request); +} + +static void +do_dump_aggregate(const struct settings *s UNUSED, int argc, char *argv[]) +{ + struct ofp_aggregate_stats_request *req; + struct ofpbuf *request; + uint16_t out_port; + + req = alloc_stats_request(sizeof *req, OFPST_AGGREGATE, &request); + str_to_flow(argc > 2 ? argv[2] : "", &req->match, NULL, + &req->table_id, &out_port, NULL, NULL, NULL); + memset(&req->pad, 0, sizeof req->pad); + req->out_port = htons(out_port); + + dump_stats_transaction(argv[1], request); +} + +static void +do_add_flow(const struct settings *s UNUSED, int argc UNUSED, char *argv[]) +{ + struct vconn *vconn; + struct ofpbuf *buffer; + struct ofp_flow_mod *ofm; + uint16_t priority, idle_timeout, hard_timeout; + struct ofp_match match; + + /* Parse and send. str_to_flow() will expand and reallocate the data in + * 'buffer', so we can't keep pointers to across the str_to_flow() call. */ + make_openflow(sizeof *ofm, OFPT_FLOW_MOD, &buffer); + str_to_flow(argv[2], &match, buffer, + NULL, NULL, &priority, &idle_timeout, &hard_timeout); + ofm = buffer->data; + ofm->match = match; + ofm->command = htons(OFPFC_ADD); + ofm->idle_timeout = htons(idle_timeout); + ofm->hard_timeout = htons(hard_timeout); + ofm->buffer_id = htonl(UINT32_MAX); + ofm->priority = htons(priority); + ofm->reserved = htonl(0); + + open_vconn(argv[1], &vconn); + send_openflow_buffer(vconn, buffer); + vconn_close(vconn); +} + +static void +do_add_flows(const struct settings *s UNUSED, int argc UNUSED, char *argv[]) +{ + struct vconn *vconn; + FILE *file; + char line[1024]; + + file = fopen(argv[2], "r"); + if (file == NULL) { + ovs_fatal(errno, "%s: open", argv[2]); + } + + open_vconn(argv[1], &vconn); + while (fgets(line, sizeof line, file)) { + struct ofpbuf *buffer; + struct ofp_flow_mod *ofm; + uint16_t priority, idle_timeout, hard_timeout; + struct ofp_match match; + + char *comment; + + /* Delete comments. */ + comment = strchr(line, '#'); + if (comment) { + *comment = '\0'; + } + + /* Drop empty lines. */ + if (line[strspn(line, " \t\n")] == '\0') { + continue; + } + + /* Parse and send. str_to_flow() will expand and reallocate the data + * in 'buffer', so we can't keep pointers to across the str_to_flow() + * call. */ + ofm = make_openflow(sizeof *ofm, OFPT_FLOW_MOD, &buffer); + str_to_flow(line, &match, buffer, + NULL, NULL, &priority, &idle_timeout, &hard_timeout); + ofm = buffer->data; + ofm->match = match; + ofm->command = htons(OFPFC_ADD); + ofm->idle_timeout = htons(idle_timeout); + ofm->hard_timeout = htons(hard_timeout); + ofm->buffer_id = htonl(UINT32_MAX); + ofm->priority = htons(priority); + ofm->reserved = htonl(0); + + send_openflow_buffer(vconn, buffer); + } + vconn_close(vconn); + fclose(file); +} + +static void +do_mod_flows(const struct settings *s, int argc UNUSED, char *argv[]) +{ + uint16_t priority, idle_timeout, hard_timeout; + struct vconn *vconn; + struct ofpbuf *buffer; + struct ofp_flow_mod *ofm; + + /* Parse and send. */ + ofm = make_openflow(sizeof *ofm, OFPT_FLOW_MOD, &buffer); + str_to_flow(argv[2], &ofm->match, buffer, + NULL, NULL, &priority, &idle_timeout, &hard_timeout); + if (s->strict) { + ofm->command = htons(OFPFC_MODIFY_STRICT); + } else { + ofm->command = htons(OFPFC_MODIFY); + } + ofm->idle_timeout = htons(idle_timeout); + ofm->hard_timeout = htons(hard_timeout); + ofm->buffer_id = htonl(UINT32_MAX); + ofm->priority = htons(priority); + ofm->reserved = htonl(0); + + open_vconn(argv[1], &vconn); + send_openflow_buffer(vconn, buffer); + vconn_close(vconn); +} + +static void do_del_flows(const struct settings *s, int argc, char *argv[]) +{ + struct vconn *vconn; + uint16_t priority; + uint16_t out_port; + struct ofpbuf *buffer; + struct ofp_flow_mod *ofm; + + /* Parse and send. */ + ofm = make_openflow(sizeof *ofm, OFPT_FLOW_MOD, &buffer); + str_to_flow(argc > 2 ? argv[2] : "", &ofm->match, NULL, NULL, + &out_port, &priority, NULL, NULL); + if (s->strict) { + ofm->command = htons(OFPFC_DELETE_STRICT); + } else { + ofm->command = htons(OFPFC_DELETE); + } + ofm->idle_timeout = htons(0); + ofm->hard_timeout = htons(0); + ofm->buffer_id = htonl(UINT32_MAX); + ofm->out_port = htons(out_port); + ofm->priority = htons(priority); + ofm->reserved = htonl(0); + + open_vconn(argv[1], &vconn); + send_openflow_buffer(vconn, buffer); + vconn_close(vconn); +} + +static void +do_monitor(const struct settings *s UNUSED, int argc UNUSED, char *argv[]) +{ + struct vconn *vconn; + + open_vconn(argv[1], &vconn); + if (argc > 2) { + int miss_send_len = atoi(argv[2]); + int send_flow_exp = argc > 3 ? atoi(argv[3]) : 0; + struct ofp_switch_config *osc; + struct ofpbuf *buf; + + osc = make_openflow(sizeof *osc, OFPT_SET_CONFIG, &buf); + osc->flags = htons(send_flow_exp ? OFPC_SEND_FLOW_EXP : 0); + osc->miss_send_len = htons(miss_send_len); + send_openflow_buffer(vconn, buf); + } + for (;;) { + struct ofpbuf *b; + run(vconn_recv_block(vconn, &b), "vconn_recv"); + ofp_print(stderr, b->data, b->size, 2); + ofpbuf_delete(b); + } +} + +static void +do_dump_ports(const struct settings *s UNUSED, int argc UNUSED, char *argv[]) +{ + dump_trivial_stats_transaction(argv[1], OFPST_PORT); +} + +static void +do_probe(const struct settings *s UNUSED, int argc UNUSED, char *argv[]) +{ + struct ofpbuf *request; + struct vconn *vconn; + struct ofpbuf *reply; + + make_openflow(sizeof(struct ofp_header), OFPT_ECHO_REQUEST, &request); + open_vconn(argv[1], &vconn); + run(vconn_transact(vconn, request, &reply), "talking to %s", argv[1]); + if (reply->size != sizeof(struct ofp_header)) { + ovs_fatal(0, "reply does not match request"); + } + ofpbuf_delete(reply); + vconn_close(vconn); +} + +static void +do_mod_port(const struct settings *s UNUSED, int argc UNUSED, char *argv[]) +{ + struct ofpbuf *request, *reply; + struct ofp_switch_features *osf; + struct ofp_port_mod *opm; + struct vconn *vconn; + char *endptr; + int n_ports; + int port_idx; + int port_no; + + + /* Check if the argument is a port index. Otherwise, treat it as + * the port name. */ + port_no = strtol(argv[2], &endptr, 10); + if (port_no == 0 && endptr == argv[2]) { + port_no = -1; + } + + /* Send a "Features Request" to get the information we need in order + * to modify the port. */ + make_openflow(sizeof(struct ofp_header), OFPT_FEATURES_REQUEST, &request); + open_vconn(argv[1], &vconn); + run(vconn_transact(vconn, request, &reply), "talking to %s", argv[1]); + + osf = reply->data; + n_ports = (reply->size - sizeof *osf) / sizeof *osf->ports; + + for (port_idx = 0; port_idx < n_ports; port_idx++) { + if (port_no != -1) { + /* Check argument as a port index */ + if (osf->ports[port_idx].port_no == htons(port_no)) { + break; + } + } else { + /* Check argument as an interface name */ + if (!strncmp((char *)osf->ports[port_idx].name, argv[2], + sizeof osf->ports[0].name)) { + break; + } + + } + } + if (port_idx == n_ports) { + ovs_fatal(0, "couldn't find monitored port: %s", argv[2]); + } + + opm = make_openflow(sizeof(struct ofp_port_mod), OFPT_PORT_MOD, &request); + opm->port_no = osf->ports[port_idx].port_no; + memcpy(opm->hw_addr, osf->ports[port_idx].hw_addr, sizeof opm->hw_addr); + opm->config = htonl(0); + opm->mask = htonl(0); + opm->advertise = htonl(0); + + printf("modifying port: %s\n", osf->ports[port_idx].name); + + if (!strncasecmp(argv[3], MOD_PORT_CMD_UP, sizeof MOD_PORT_CMD_UP)) { + opm->mask |= htonl(OFPPC_PORT_DOWN); + } else if (!strncasecmp(argv[3], MOD_PORT_CMD_DOWN, + sizeof MOD_PORT_CMD_DOWN)) { + opm->mask |= htonl(OFPPC_PORT_DOWN); + opm->config |= htonl(OFPPC_PORT_DOWN); + } else if (!strncasecmp(argv[3], MOD_PORT_CMD_FLOOD, + sizeof MOD_PORT_CMD_FLOOD)) { + opm->mask |= htonl(OFPPC_NO_FLOOD); + } else if (!strncasecmp(argv[3], MOD_PORT_CMD_NOFLOOD, + sizeof MOD_PORT_CMD_NOFLOOD)) { + opm->mask |= htonl(OFPPC_NO_FLOOD); + opm->config |= htonl(OFPPC_NO_FLOOD); + } else { + ovs_fatal(0, "unknown mod-port command '%s'", argv[3]); + } + + send_openflow_buffer(vconn, request); + + ofpbuf_delete(reply); + vconn_close(vconn); +} + +static void +do_ping(const struct settings *s UNUSED, int argc, char *argv[]) +{ + size_t max_payload = 65535 - sizeof(struct ofp_header); + unsigned int payload; + struct vconn *vconn; + int i; + + payload = argc > 2 ? atoi(argv[2]) : 64; + if (payload > max_payload) { + ovs_fatal(0, "payload must be between 0 and %zu bytes", max_payload); + } + + open_vconn(argv[1], &vconn); + for (i = 0; i < 10; i++) { + struct timeval start, end; + struct ofpbuf *request, *reply; + struct ofp_header *rq_hdr, *rpy_hdr; + + rq_hdr = make_openflow(sizeof(struct ofp_header) + payload, + OFPT_ECHO_REQUEST, &request); + random_bytes(rq_hdr + 1, payload); + + gettimeofday(&start, NULL); + run(vconn_transact(vconn, ofpbuf_clone(request), &reply), "transact"); + gettimeofday(&end, NULL); + + rpy_hdr = reply->data; + if (reply->size != request->size + || memcmp(rpy_hdr + 1, rq_hdr + 1, payload) + || rpy_hdr->xid != rq_hdr->xid + || rpy_hdr->type != OFPT_ECHO_REPLY) { + printf("Reply does not match request. Request:\n"); + ofp_print(stdout, request, request->size, 2); + printf("Reply:\n"); + ofp_print(stdout, reply, reply->size, 2); + } + printf("%d bytes from %s: xid=%08"PRIx32" time=%.1f ms\n", + reply->size - sizeof *rpy_hdr, argv[1], rpy_hdr->xid, + (1000*(double)(end.tv_sec - start.tv_sec)) + + (.001*(end.tv_usec - start.tv_usec))); + ofpbuf_delete(request); + ofpbuf_delete(reply); + } + vconn_close(vconn); +} + +static void +do_benchmark(const struct settings *s UNUSED, int argc UNUSED, char *argv[]) +{ + size_t max_payload = 65535 - sizeof(struct ofp_header); + struct timeval start, end; + unsigned int payload_size, message_size; + struct vconn *vconn; + double duration; + int count; + int i; + + payload_size = atoi(argv[2]); + if (payload_size > max_payload) { + ovs_fatal(0, "payload must be between 0 and %zu bytes", max_payload); + } + message_size = sizeof(struct ofp_header) + payload_size; + + count = atoi(argv[3]); + + printf("Sending %d packets * %u bytes (with header) = %u bytes total\n", + count, message_size, count * message_size); + + open_vconn(argv[1], &vconn); + gettimeofday(&start, NULL); + for (i = 0; i < count; i++) { + struct ofpbuf *request, *reply; + struct ofp_header *rq_hdr; + + rq_hdr = make_openflow(message_size, OFPT_ECHO_REQUEST, &request); + memset(rq_hdr + 1, 0, payload_size); + run(vconn_transact(vconn, request, &reply), "transact"); + ofpbuf_delete(reply); + } + gettimeofday(&end, NULL); + vconn_close(vconn); + + duration = ((1000*(double)(end.tv_sec - start.tv_sec)) + + (.001*(end.tv_usec - start.tv_usec))); + printf("Finished in %.1f ms (%.0f packets/s) (%.0f bytes/s)\n", + duration, count / (duration / 1000.0), + count * message_size / (duration / 1000.0)); +} + +static void +do_execute(const struct settings *s UNUSED, int argc, char *argv[]) +{ + struct vconn *vconn; + struct ofpbuf *request; + struct nicira_header *nicira; + struct nx_command_reply *ncr; + uint32_t xid; + int i; + + nicira = make_openflow(sizeof *nicira, OFPT_VENDOR, &request); + xid = nicira->header.xid; + nicira->vendor = htonl(NX_VENDOR_ID); + nicira->subtype = htonl(NXT_COMMAND_REQUEST); + ofpbuf_put(request, argv[2], strlen(argv[2])); + for (i = 3; i < argc; i++) { + ofpbuf_put_zeros(request, 1); + ofpbuf_put(request, argv[i], strlen(argv[i])); + } + update_openflow_length(request); + + open_vconn(argv[1], &vconn); + run(vconn_send_block(vconn, request), "send"); + + for (;;) { + struct ofpbuf *reply; + uint32_t status; + + run(vconn_recv_xid(vconn, xid, &reply), "recv_xid"); + if (reply->size < sizeof *ncr) { + ovs_fatal(0, "reply is too short (%zu bytes < %zu bytes)", + reply->size, sizeof *ncr); + } + ncr = reply->data; + if (ncr->nxh.header.type != OFPT_VENDOR + || ncr->nxh.vendor != htonl(NX_VENDOR_ID) + || ncr->nxh.subtype != htonl(NXT_COMMAND_REPLY)) { + ovs_fatal(0, "reply is invalid"); + } + + status = ntohl(ncr->status); + if (status & NXT_STATUS_STARTED) { + /* Wait for a second reply. */ + continue; + } else if (status & NXT_STATUS_EXITED) { + fprintf(stderr, "process terminated normally with exit code %d", + status & NXT_STATUS_EXITSTATUS); + } else if (status & NXT_STATUS_SIGNALED) { + fprintf(stderr, "process terminated by signal %d", + status & NXT_STATUS_TERMSIG); + } else if (status & NXT_STATUS_ERROR) { + fprintf(stderr, "error executing command"); + } else { + fprintf(stderr, "process terminated for unknown reason"); + } + if (status & NXT_STATUS_COREDUMP) { + fprintf(stderr, " (core dumped)"); + } + putc('\n', stderr); + + fwrite(ncr + 1, reply->size - sizeof *ncr, 1, stdout); + break; + } +} + +static void +do_help(const struct settings *s UNUSED, int argc UNUSED, char *argv[] UNUSED) +{ + usage(); +} + +static struct command all_commands[] = { + { "show", 1, 1, do_show }, + { "status", 1, 2, do_status }, + { "monitor", 1, 3, do_monitor }, + { "dump-desc", 1, 1, do_dump_desc }, + { "dump-tables", 1, 1, do_dump_tables }, + { "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 }, + { "mod-flows", 2, 2, do_mod_flows }, + { "del-flows", 1, 2, do_del_flows }, + { "dump-ports", 1, 1, do_dump_ports }, + { "mod-port", 3, 3, do_mod_port }, + { "probe", 1, 1, do_probe }, + { "ping", 1, 2, do_ping }, + { "benchmark", 3, 3, do_benchmark }, + { "execute", 2, INT_MAX, do_execute }, + { "help", 0, INT_MAX, do_help }, + { NULL, 0, 0, NULL }, +}; |