/* Blocks program termination signals until fatal_signal_unblock() is called.
* May be called multiple times with nesting; if so, fatal_signal_unblock()
* must be called the same number of times to unblock signals.
*
* This is needed while adjusting a data structure that will be accessed by a
* fatal signal hook, so that the hook is not invoked while the data structure
* is in an inconsistent state. */
void
fatal_signal_block(void)
{
static bool inited = false;
if (!inited) {
size_t i;
inited = true;
sigemptyset(&fatal_signal_set);
for (i = 0; i < ARRAY_SIZE(fatal_signals); i++) {
int sig_nr = fatal_signals[i];
struct sigaction old_sa;
sigaddset(&fatal_signal_set, sig_nr);
if (sigaction(sig_nr, NULL, &old_sa)) {
ofp_fatal(errno, "sigaction");
}
if (old_sa.sa_handler == SIG_DFL
&& signal(sig_nr, fatal_signal_handler) == SIG_ERR) {
ofp_fatal(errno, "signal");
}
}
atexit(atexit_handler);
}
if (++block_level == 1) {
call_sigprocmask(SIG_BLOCK, &fatal_signal_set, &saved_signal_mask);
}
}
/* Initializes the timetracking module. */
void
time_init(void)
{
struct sigaction sa;
struct itimerval itimer;
if (inited) {
return;
}
inited = true;
gettimeofday(&now, NULL);
tick = false;
/* Set up signal handler. */
memset(&sa, 0, sizeof sa);
sa.sa_handler = sigalrm_handler;
sigemptyset(&sa.sa_mask);
sa.sa_flags = SA_RESTART;
if (sigaction(SIGALRM, &sa, NULL)) {
ofp_fatal(errno, "sigaction(SIGALRM) failed");
}
/* Set up periodic timer. */
itimer.it_interval.tv_sec = 0;
itimer.it_interval.tv_usec = TIME_UPDATE_INTERVAL * 1000;
itimer.it_value = itimer.it_interval;
if (setitimer(ITIMER_REAL, &itimer, NULL)) {
ofp_fatal(errno, "setitimer failed");
}
}
int
main(int argc, char *argv[])
{
struct rconn *rconn;
int error;
set_program_name(argv[0]);
register_fault_handlers();
time_init();
vlog_init();
parse_options(argc, argv);
signal(SIGPIPE, SIG_IGN);
if (argc - optind != 1) {
ofp_fatal(0, "missing controller argument; use --help for usage");
}
rconn = rconn_create(60, max_backoff);
error = rconn_connect(rconn, argv[optind]);
if (error == EAFNOSUPPORT) {
ofp_fatal(0, "no support for %s vconn", argv[optind]);
}
error = dp_new(&dp, dpid, rconn);
if (listen_pvconn_name) {
struct pvconn *listen_pvconn;
int retval;
retval = pvconn_open(listen_pvconn_name, &listen_pvconn);
if (retval && retval != EAGAIN) {
ofp_fatal(retval, "opening %s", listen_pvconn_name);
}
dp_add_listen_pvconn(dp, listen_pvconn);
}
if (error) {
ofp_fatal(error, "could not create datapath");
}
if (port_list) {
add_ports(dp, port_list);
}
die_if_already_running();
daemonize();
error = vlog_server_listen(NULL, NULL);
if (error) {
ofp_fatal(error, "could not listen for vlog connections");
}
for (;;) {
dp_run(dp);
dp_wait(dp);
poll_block();
}
return 0;
}
static void
unblock_sigalrm(const sigset_t *oldsigs)
{
if (sigprocmask(SIG_SETMASK, oldsigs, NULL)) {
ofp_fatal(errno, "sigprocmask");
}
}
static void
block_sigalrm(sigset_t *oldsigs)
{
sigset_t sigalrm;
sigemptyset(&sigalrm);
sigaddset(&sigalrm, SIGALRM);
if (sigprocmask(SIG_BLOCK, &sigalrm, oldsigs)) {
ofp_fatal(errno, "sigprocmask");
}
}
void
random_init(void)
{
static bool inited = false;
if (!inited) {
struct timeval tv;
inited = true;
if (gettimeofday(&tv, NULL) < 0) {
ofp_fatal(errno, "gettimeofday");
}
srand(tv.tv_sec ^ tv.tv_usec);
}
}
/* Initializes the signals subsystem (if it is not already initialized). Calls
* exit() if initialization fails.
*
* Calling this function is optional; it will be called automatically by
* signal_start() if necessary. Calling it explicitly allows the client to
* prevent the process from exiting at an unexpected time. */
void
signal_init(void)
{
static bool inited;
if (!inited) {
inited = true;
if (pipe(fds)) {
ofp_fatal(errno, "could not create pipe");
}
set_nonblocking(fds[0]);
set_nonblocking(fds[1]);
}
}
int
main(int argc, char *argv[])
{
struct dhclient *cli;
int error;
set_program_name(argv[0]);
register_fault_handlers();
vlog_init();
parse_options(argc, argv);
argc -= optind;
argv += optind;
if (argc != 1) {
ofp_fatal(0, "exactly one non-option argument required; "
"use --help for help");
}
error = dhclient_create(argv[0], modify_dhcp_request, NULL, NULL, &cli);
if (error) {
ofp_fatal(error, "dhclient_create failed");
}
dhclient_init(cli, request_ip.s_addr);
fatal_signal_add_hook(release, cli, true);
for (;;) {
fatal_signal_block();
dhclient_run(cli);
if (dhclient_changed(cli)) {
dhclient_configure_netdev(cli);
if (update_resolv_conf) {
dhclient_update_resolv_conf(cli);
}
}
dhclient_wait(cli);
fatal_signal_unblock();
poll_block();
}
}
/* If configured with set_pidfile() or set_detach(), creates the pid file and
* detaches from the foreground session. */
void
daemonize(void)
{
if (detach) {
char c = 0;
int fds[2];
if (pipe(fds) < 0) {
ofp_fatal(errno, "pipe failed");
}
switch (fork()) {
default:
/* Parent process: wait for child to create pidfile, then exit. */
close(fds[1]);
fatal_signal_fork();
if (read(fds[0], &c, 1) != 1) {
ofp_fatal(errno, "daemon child failed to signal startup");
}
exit(0);
case 0:
/* Child process. */
close(fds[0]);
make_pidfile();
write(fds[1], &c, 1);
close(fds[1]);
setsid();
chdir("/");
break;
case -1:
/* Error. */
ofp_fatal(errno, "could not fork");
break;
}
} else {
make_pidfile();
}
}
/* If a locked pidfile exists, issue a warning message and, unless
* ignore_existing_pidfile() has been called, terminate the program. */
void
die_if_already_running(void)
{
pid_t pid = already_running();
if (pid) {
if (!force) {
ofp_fatal(0, "%s: already running as pid %ld",
get_pidfile(), (long int) pid);
} else {
VLOG_WARN("%s: %s already running as pid %ld",
get_pidfile(), program_name, (long int) pid);
}
}
}
/* Add a range of numeric ports from min to max, inclusive */
static void
add_ports_range(struct datapath *dp, int min_port, int max_port)
{
char port_name[16];
int port;
int error;
for (port = min_port; port <= max_port; port++) {
sprintf(port_name, "%d", port);
error = dp_add_port(dp, port_name, num_queues);
if (error) {
ofp_fatal(error, "failed to add port %s", port_name);
}
}
}
static void
add_ports(struct datapath *dp, char *port_list)
{
char *port, *save_ptr;
/* Glibc 2.7 has a bug in strtok_r when compiling with optimization that
* can cause segfaults here:
* http://sources.redhat.com/bugzilla/show_bug.cgi?id=5614.
* Using ",," instead of the obvious "," works around it. */
for (port = strtok_r(port_list, ",,", &save_ptr); port;
port = strtok_r(NULL, ",,", &save_ptr)) {
int error = dp_ports_add(dp, port);
if (error) {
ofp_fatal(error, "failed to add port %s", port);
}
}
}
/* Sets up a handler for 'signr' and returns a structure that represents it.
*
* Only one handler for a given signal may be registered at a time. */
struct signal *
signal_register(int signr)
{
struct sigaction sa;
struct signal *s;
signal_init();
/* Set up signal handler. */
assert(signr >= 1 && signr < N_SIGNALS);
memset(&sa, 0, sizeof sa);
sa.sa_handler = signal_handler;
sigemptyset(&sa.sa_mask);
sa.sa_flags = SA_RESTART;
if (sigaction(signr, &sa, NULL)) {
ofp_fatal(errno, "sigaction(%d) failed", signr);
}
/* Return structure. */
s = xmalloc(sizeof *s);
s->signr = signr;
return s;
}
/* Convert 'str_' (as described in the Flow Syntax section of the ovs-ofctl man
* page) into 'fm' for sending the specified flow_mod 'command' to a switch.
* If 'actions' is specified, an action must be in 'string' and may be expanded
* or reallocated.
*
* To parse syntax for an OFPT_FLOW_MOD (or NXT_FLOW_MOD), use an OFPFC_*
* constant for 'command'. To parse syntax for an OFPST_FLOW or
* OFPST_AGGREGATE (or NXST_FLOW or NXST_AGGREGATE), use -1 for 'command'. */
void
parse_ofp_str(struct ofputil_flow_mod *fm, int command, const char *str_,
bool verbose)
{
enum {
F_OUT_PORT = 1 << 0,
F_ACTIONS = 1 << 1,
F_TIMEOUT = 1 << 3,
F_PRIORITY = 1 << 4,
F_FLAGS = 1 << 5,
} fields;
char *string = xstrdup(str_);
char *save_ptr = NULL;
char *act_str = NULL;
char *name;
switch (command) {
case -1:
fields = F_OUT_PORT;
break;
case OFPFC_ADD:
fields = F_ACTIONS | F_TIMEOUT | F_PRIORITY | F_FLAGS;
break;
case OFPFC_DELETE:
fields = F_OUT_PORT;
break;
case OFPFC_DELETE_STRICT:
fields = F_OUT_PORT | F_PRIORITY;
break;
case OFPFC_MODIFY:
fields = F_ACTIONS | F_TIMEOUT | F_PRIORITY | F_FLAGS;
break;
case OFPFC_MODIFY_STRICT:
fields = F_ACTIONS | F_TIMEOUT | F_PRIORITY | F_FLAGS;
break;
default:
NOT_REACHED();
}
match_init_catchall(&fm->match);
fm->priority = OFP_DEFAULT_PRIORITY;
fm->cookie = htonll(0);
fm->cookie_mask = htonll(0);
if (command == OFPFC_MODIFY || command == OFPFC_MODIFY_STRICT) {
/* For modify, by default, don't update the cookie. */
fm->new_cookie = htonll(UINT64_MAX);
} else{
fm->new_cookie = htonll(0);
}
fm->table_id = 0xff;
fm->command = command;
fm->idle_timeout = OFP_FLOW_PERMANENT;
fm->hard_timeout = OFP_FLOW_PERMANENT;
fm->buffer_id = UINT32_MAX;
fm->out_port = OFPP_ANY;
fm->flags = 0;
if (fields & F_ACTIONS) {
act_str = strstr(string, "action");
if (!act_str) {
ofp_fatal(str_, verbose, "must specify an action");
}
*act_str = '\0';
act_str = strchr(act_str + 1, '=');
if (!act_str) {
ofp_fatal(str_, verbose, "must specify an action");
}
act_str++;
}
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)) {
match_set_dl_type(&fm->match, htons(p->dl_type));
if (p->nw_proto) {
match_set_nw_proto(&fm->match, p->nw_proto);
}
} else if (fields & F_FLAGS && !strcmp(name, "send_flow_rem")) {
fm->flags |= OFPFF_SEND_FLOW_REM;
} else if (fields & F_FLAGS && !strcmp(name, "check_overlap")) {
fm->flags |= OFPFF_CHECK_OVERLAP;
} else if (fields & F_FLAGS && !strcmp(name, "reset_counts")) {
fm->flags |= OFPFF12_RESET_COUNTS;
} else if (fields & F_FLAGS && !strcmp(name, "no_packet_counts")) {
fm->flags |= OFPFF13_NO_PKT_COUNTS;
} else if (fields & F_FLAGS && !strcmp(name, "no_byte_counts")) {
fm->flags |= OFPFF13_NO_BYT_COUNTS;
} else {
char *value;
value = strtok_r(NULL, ", \t\r\n", &save_ptr);
if (!value) {
ofp_fatal(str_, verbose, "field %s missing value", name);
}
if (!strcmp(name, "table")) {
fm->table_id = str_to_u8(value, name);
} else if (!strcmp(name, "out_port")) {
if (!ofputil_port_from_string(value, &fm->out_port)) {
ofp_fatal(str_, verbose, "%s is not a valid OpenFlow port",
name);
}
} else if (fields & F_PRIORITY && !strcmp(name, "priority")) {
fm->priority = str_to_u16(value, name);
} else if (fields & F_TIMEOUT && !strcmp(name, "idle_timeout")) {
fm->idle_timeout = str_to_u16(value, name);
} else if (fields & F_TIMEOUT && !strcmp(name, "hard_timeout")) {
fm->hard_timeout = str_to_u16(value, name);
} else if (!strcmp(name, "cookie")) {
char *mask = strchr(value, '/');
if (mask) {
/* A mask means we're searching for a cookie. */
if (command == OFPFC_ADD) {
ofp_fatal(str_, verbose, "flow additions cannot use "
"a cookie mask");
}
*mask = '\0';
fm->cookie = htonll(str_to_u64(value));
fm->cookie_mask = htonll(str_to_u64(mask+1));
} else {
/* No mask means that the cookie is being set. */
if (command != OFPFC_ADD && command != OFPFC_MODIFY
&& command != OFPFC_MODIFY_STRICT) {
ofp_fatal(str_, verbose, "cannot set cookie");
}
fm->new_cookie = htonll(str_to_u64(value));
}
} else if (mf_from_name(name)) {
parse_field(mf_from_name(name), value, &fm->match);
} else if (!strcmp(name, "duration")
|| !strcmp(name, "n_packets")
|| !strcmp(name, "n_bytes")
|| !strcmp(name, "idle_age")
|| !strcmp(name, "hard_age")) {
/* Ignore these, so that users can feed the output of
* "ovs-ofctl dump-flows" back into commands that parse
* flows. */
} else {
ofp_fatal(str_, verbose, "unknown keyword %s", name);
}
}
}
if (!fm->cookie_mask && fm->new_cookie == htonll(UINT64_MAX)
&& (command == OFPFC_MODIFY || command == OFPFC_MODIFY_STRICT)) {
/* On modifies without a mask, we are supposed to add a flow if
* one does not exist. If a cookie wasn't been specified, use a
* default of zero. */
fm->new_cookie = htonll(0);
}
if (fields & F_ACTIONS) {
struct ofpbuf ofpacts;
enum ofperr err;
ofpbuf_init(&ofpacts, 32);
str_to_inst_ofpacts(act_str, &ofpacts);
fm->ofpacts_len = ofpacts.size;
fm->ofpacts = ofpbuf_steal_data(&ofpacts);
err = ofpacts_check(fm->ofpacts, fm->ofpacts_len, &fm->match.flow,
OFPP_MAX, 0);
if (err) {
exit(EXIT_FAILURE);
}
} else {
fm->ofpacts_len = 0;
fm->ofpacts = NULL;
}
free(string);
}
/* Convert 'str_' (as described in the Flow Syntax section of the ovs-ofctl man
* page) into 'mm' for sending the specified meter_mod 'command' to a switch.
*/
void
parse_ofp_meter_mod_str(struct ofputil_meter_mod *mm, const char *str_,
int command, bool verbose)
{
enum {
F_METER = 1 << 0,
F_FLAGS = 1 << 1,
F_BANDS = 1 << 2,
} fields;
char *string = xstrdup(str_);
char *save_ptr = NULL;
char *band_str = NULL;
char *name;
switch (command) {
case -1:
fields = F_METER;
break;
case OFPMC13_ADD:
fields = F_METER | F_FLAGS | F_BANDS;
break;
case OFPMC13_DELETE:
fields = F_METER;
break;
case OFPMC13_MODIFY:
fields = F_METER | F_FLAGS | F_BANDS;
break;
default:
NOT_REACHED();
}
mm->command = command;
mm->meter.meter_id = 0;
mm->meter.flags = 0;
if (fields & F_BANDS) {
band_str = strstr(string, "band");
if (!band_str) {
ofp_fatal(str_, verbose, "must specify bands");
}
*band_str = '\0';
band_str = strchr(band_str + 1, '=');
if (!band_str) {
ofp_fatal(str_, verbose, "must specify bands");
}
band_str++;
}
for (name = strtok_r(string, "=, \t\r\n", &save_ptr); name;
name = strtok_r(NULL, "=, \t\r\n", &save_ptr)) {
if (fields & F_FLAGS && !strcmp(name, "kbps")) {
mm->meter.flags |= OFPMF13_KBPS;
} else if (fields & F_FLAGS && !strcmp(name, "pktps")) {
mm->meter.flags |= OFPMF13_PKTPS;
} else if (fields & F_FLAGS && !strcmp(name, "burst")) {
mm->meter.flags |= OFPMF13_BURST;
} else if (fields & F_FLAGS && !strcmp(name, "stats")) {
mm->meter.flags |= OFPMF13_STATS;
} else {
char *value;
value = strtok_r(NULL, ", \t\r\n", &save_ptr);
if (!value) {
ofp_fatal(str_, verbose, "field %s missing value", name);
}
if (!strcmp(name, "meter")) {
if (!strcmp(value, "all")) {
mm->meter.meter_id = OFPM13_ALL;
} else if (!strcmp(value, "controller")) {
mm->meter.meter_id = OFPM13_CONTROLLER;
} else if (!strcmp(value, "slowpath")) {
mm->meter.meter_id = OFPM13_SLOWPATH;
} else {
mm->meter.meter_id = str_to_u32(value);
if (mm->meter.meter_id > OFPM13_MAX) {
ofp_fatal(str_, verbose, "invalid value for %s", name);
}
}
} else {
ofp_fatal(str_, verbose, "unknown keyword %s", name);
}
}
}
if (fields & F_METER && !mm->meter.meter_id) {
ofp_fatal(str_, verbose, "must specify 'meter'");
}
if (fields & F_FLAGS && !mm->meter.flags) {
ofp_fatal(str_, verbose,
"meter must specify either 'kbps' or 'pktps'");
}
if (fields & F_BANDS) {
struct ofpbuf bands;
uint16_t n_bands = 0;
struct ofputil_meter_band *band = NULL;
int i;
ofpbuf_init(&bands, 64);
for (name = strtok_r(band_str, "=, \t\r\n", &save_ptr); name;
name = strtok_r(NULL, "=, \t\r\n", &save_ptr)) {
char *value;
value = strtok_r(NULL, ", \t\r\n", &save_ptr);
if (!value) {
ofp_fatal(str_, verbose, "field %s missing value", name);
}
if (!strcmp(name, "type")) {
/* Start a new band */
band = ofpbuf_put_zeros(&bands, sizeof *band);
n_bands++;
if (!strcmp(value, "drop")) {
band->type = OFPMBT13_DROP;
} else if (!strcmp(value, "dscp_remark")) {
band->type = OFPMBT13_DSCP_REMARK;
} else {
ofp_fatal(str_, verbose, "field %s unknown value %s", name,
value);
}
} else if (!band || !band->type) {
ofp_fatal(str_, verbose,
"band must start with the 'type' keyword");
} else if (!strcmp(name, "rate")) {
band->rate = str_to_u32(value);
} else if (!strcmp(name, "burst_size")) {
band->burst_size = str_to_u32(value);
} else if (!strcmp(name, "prec_level")) {
band->prec_level = str_to_u8(value, name);
} else {
ofp_fatal(str_, verbose, "unknown keyword %s", name);
}
}
/* validate bands */
if (!n_bands) {
ofp_fatal(str_, verbose, "meter must have bands");
}
mm->meter.n_bands = n_bands;
mm->meter.bands = ofpbuf_steal_data(&bands);
for (i = 0; i < n_bands; ++i) {
band = &mm->meter.bands[i];
if (!band->type) {
ofp_fatal(str_, verbose, "band must have 'type'");
}
if (band->type == OFPMBT13_DSCP_REMARK) {
if (!band->prec_level) {
ofp_fatal(str_, verbose, "'dscp_remark' band must have"
" 'prec_level'");
}
} else {
if (band->prec_level) {
ofp_fatal(str_, verbose, "Only 'dscp_remark' band may have"
" 'prec_level'");
}
}
if (!band->rate) {
ofp_fatal(str_, verbose, "band must have 'rate'");
}
if (mm->meter.flags & OFPMF13_BURST) {
if (!band->burst_size) {
ofp_fatal(str_, verbose, "band must have 'burst_size' "
"when 'burst' flag is set");
}
} else {
if (band->burst_size) {
ofp_fatal(str_, verbose, "band may have 'burst_size' only "
"when 'burst' flag is set");
}
}
}
} else {
mm->meter.n_bands = 0;
mm->meter.bands = NULL;
}
free(string);
}
int
main(int argc, char *argv[])
{
struct test_case *tc;
FILE *input_file;
int i;
if (argc != 2) {
ofp_fatal(0, "usage: test-stp INPUT.STP\n");
}
file_name = argv[1];
input_file = fopen(file_name, "r");
if (!input_file) {
ofp_fatal(errno, "error opening \"%s\"", file_name);
}
tc = new_test_case();
for (i = 0; i < 26; i++) {
char name[2];
name[0] = 'a' + i;
name[1] = '\0';
new_lan(tc, name);
}
for (line_number = 1; fgets(line, sizeof line, input_file);
line_number++)
{
char *newline, *hash;
newline = strchr(line, '\n');
if (newline) {
*newline = '\0';
}
hash = strchr(line, '#');
if (hash) {
*hash = '\0';
}
pos = line;
if (!get_token()) {
continue;
}
if (match("bridge")) {
struct bridge *bridge;
int bridge_no, port_no;
bridge_no = must_get_int();
if (bridge_no < tc->n_bridges) {
bridge = tc->bridges[bridge_no];
} else if (bridge_no == tc->n_bridges) {
bridge = new_bridge(tc, must_get_int());
} else {
err("bridges must be numbered consecutively from 0");
}
if (match("^")) {
stp_set_bridge_priority(bridge->stp, must_get_int());
}
if (match("=")) {
for (port_no = 0; port_no < STP_MAX_PORTS; port_no++) {
struct stp_port *p = stp_get_port(bridge->stp, port_no);
if (!token || match("X")) {
stp_port_disable(p);
} else if (match("_")) {
/* Nothing to do. */
} else {
struct lan *lan;
int path_cost;
if (!strcmp(token, "0")) {
lan = NULL;
} else if (strlen(token) == 1 && islower(*token)) {
lan = tc->lans[*token - 'a'];
} else {
err("%s is not a valid LAN name "
"(0 or a lowercase letter)", token);
}
get_token();
path_cost = match(":") ? must_get_int() : 10;
if (port_no < bridge->n_ports) {
stp_port_set_path_cost(p, path_cost);
stp_port_enable(p);
reconnect_port(bridge, port_no, lan);
} else if (port_no == bridge->n_ports) {
new_port(bridge, lan, path_cost);
} else {
err("ports must be numbered consecutively");
}
if (match("^")) {
stp_port_set_priority(p, must_get_int());
}
}
}
}
} else if (match("run")) {
simulate(tc, must_get_int());
} else if (match("dump")) {
dump(tc);
} else if (match("tree")) {
tree(tc);
} else if (match("check")) {
struct bridge *b;
struct stp *stp;
int bridge_no, port_no;
bridge_no = must_get_int();
if (bridge_no >= tc->n_bridges) {
err("no bridge numbered %d", bridge_no);
}
b = tc->bridges[bridge_no];
stp = b->stp;
must_match("=");
if (match("rootid")) {
uint64_t rootid;
must_match(":");
rootid = must_get_int();
if (match("^")) {
rootid |= (uint64_t) must_get_int() << 48;
} else {
rootid |= UINT64_C(0x8000) << 48;
}
if (stp_get_designated_root(stp) != rootid) {
warn("%s: root %"PRIx64", not %"PRIx64,
stp_get_name(stp), stp_get_designated_root(stp),
rootid);
}
}
if (match("root")) {
if (stp_get_root_path_cost(stp)) {
warn("%s: root path cost of root is %u but should be 0",
stp_get_name(stp), stp_get_root_path_cost(stp));
}
if (!stp_is_root_bridge(stp)) {
warn("%s: root is %"PRIx64", not %"PRIx64,
stp_get_name(stp),
stp_get_designated_root(stp), stp_get_bridge_id(stp));
}
for (port_no = 0; port_no < b->n_ports; port_no++) {
struct stp_port *p = stp_get_port(stp, port_no);
enum stp_state state = stp_port_get_state(p);
if (!(state & (STP_DISABLED | STP_FORWARDING))) {
warn("%s: root port %d in state %s",
stp_get_name(b->stp), port_no,
stp_state_name(state));
}
}
} else {
for (port_no = 0; port_no < STP_MAX_PORTS; port_no++) {
struct stp_port *p = stp_get_port(stp, port_no);
enum stp_state state;
if (token == NULL || match("D")) {
state = STP_DISABLED;
} else if (match("B")) {
state = STP_BLOCKING;
} else if (match("Li")) {
state = STP_LISTENING;
} else if (match("Le")) {
state = STP_LEARNING;
} else if (match("F")) {
state = STP_FORWARDING;
} else if (match("_")) {
continue;
} else {
err("unknown port state %s", token);
}
if (stp_port_get_state(p) != state) {
warn("%s port %d: state is %s but should be %s",
stp_get_name(stp), port_no,
stp_state_name(stp_port_get_state(p)),
stp_state_name(state));
}
if (state == STP_FORWARDING) {
struct stp_port *root_port = stp_get_root_port(stp);
if (match(":")) {
int root_path_cost = must_get_int();
if (p != root_port) {
warn("%s: port %d is not the root port",
stp_get_name(stp), port_no);
if (!root_port) {
warn("%s: (there is no root port)",
stp_get_name(stp));
} else {
warn("%s: (port %d is the root port)",
stp_get_name(stp),
stp_port_no(root_port));
}
} else if (root_path_cost
!= stp_get_root_path_cost(stp)) {
warn("%s: root path cost is %u, should be %d",
stp_get_name(stp),
stp_get_root_path_cost(stp),
root_path_cost);
}
} else if (p == root_port) {
warn("%s: port %d is the root port but "
"not expected to be",
stp_get_name(stp), port_no);
}
}
}
}
if (n_warnings) {
exit(EXIT_FAILURE);
}
}
if (get_token()) {
err("trailing garbage on line");
}
}
return 0;
}
static void
parse_options(struct datapath *dp, int argc, char *argv[])
{
enum {
OPT_MFR_DESC = UCHAR_MAX + 1,
OPT_HW_DESC,
OPT_SW_DESC,
OPT_DP_DESC,
OPT_SERIAL_NUM,
OPT_BOOTSTRAP_CA_CERT,
OPT_NO_LOCAL_PORT,
OPT_NO_SLICING
};
static struct option long_options[] = {
{"interfaces", required_argument, 0, 'i'},
{"local-port", required_argument, 0, 'L'},
{"no-local-port", no_argument, 0, OPT_NO_LOCAL_PORT},
{"datapath-id", required_argument, 0, 'd'},
{"multiconn", no_argument, 0, 'm'},
{"verbose", optional_argument, 0, 'v'},
{"help", no_argument, 0, 'h'},
{"version", no_argument, 0, 'V'},
{"no-slicing", no_argument, 0, OPT_NO_SLICING},
{"mfr-desc", required_argument, 0, OPT_MFR_DESC},
{"hw-desc", required_argument, 0, OPT_HW_DESC},
{"sw-desc", required_argument, 0, OPT_SW_DESC},
{"dp_desc", required_argument, 0, OPT_DP_DESC},
{"serial_num", required_argument, 0, OPT_SERIAL_NUM},
DAEMON_LONG_OPTIONS,
#ifdef HAVE_OPENSSL
VCONN_SSL_LONG_OPTIONS
{"bootstrap-ca-cert", required_argument, 0, OPT_BOOTSTRAP_CA_CERT},
#endif
{0, 0, 0, 0},
};
char *short_options = long_options_to_short_options(long_options);
for (;;) {
int indexptr;
int c;
c = getopt_long(argc, argv, short_options, long_options, &indexptr);
if (c == -1) {
break;
}
switch (c) {
case 'd': {
uint64_t dpid;
if (strlen(optarg) != 12
|| strspn(optarg, "0123456789abcdefABCDEF") != 12) {
ofp_fatal(0, "argument to -d or --datapath-id must be "
"exactly 12 hex digits");
}
dpid = strtoll(optarg, NULL, 16);
if (!dpid) {
ofp_fatal(0, "argument to -d or --datapath-id must "
"be nonzero");
}
dp_set_dpid(dp, dpid);
break;
}
case 'm': {
use_multiple_connections = true;
break;
}
case 'h':
usage();
case 'V':
printf("%s %s compiled "__DATE__" "__TIME__"\n",
program_name, VERSION BUILDNR);
exit(EXIT_SUCCESS);
case 'v':
vlog_set_verbosity(optarg);
break;
case 'i':
if (!port_list) {
port_list = optarg;
} else {
port_list = xasprintf("%s,%s", port_list, optarg);
}
break;
case 'L':
local_port = optarg;
break;
case OPT_NO_LOCAL_PORT:
local_port = NULL;
break;
case OPT_MFR_DESC:
dp_set_mfr_desc(dp, optarg);
break;
case OPT_HW_DESC:
dp_set_hw_desc(dp, optarg);
break;
case OPT_SW_DESC:
dp_set_sw_desc(dp, optarg);
break;
case OPT_DP_DESC:
dp_set_dp_desc(dp, optarg);
break;
case OPT_SERIAL_NUM:
dp_set_serial_num(dp, optarg);
break;
case OPT_NO_SLICING:
dp_set_max_queues(dp, 0);
break;
DAEMON_OPTION_HANDLERS
#ifdef HAVE_OPENSSL
VCONN_SSL_OPTION_HANDLERS
case OPT_BOOTSTRAP_CA_CERT:
vconn_ssl_set_ca_cert_file(optarg, true);
break;
#endif
case '?':
exit(EXIT_FAILURE);
default:
abort();
}
}
free(short_options);
}
void
out_of_memory(void)
{
ofp_fatal(0, "virtual memory exhausted");
}
extern "C" int nblink_initialize(void)
{
char ErrBuf[ERRBUF_SIZE + 1];
int NetPDLProtoDBFlags = nbPROTODB_MINIMAL;
int NetPDLDecoderFlags = nbDECODER_GENERATEPDML;
int ShowNetworkNames = 0;
char* NetPDLFileName = (char*) NETPDLDIR"/"NETPDLFILE;
struct stat netpdlstat;
struct sigaction sa;
/* Set up signal handler. */
memset(&sa, 0, sizeof sa);
sa.sa_handler = sigint_handler;
sigemptyset(&sa.sa_mask);
sa.sa_flags = SA_RESTART;
if (sigaction(SIGINT, &sa, NULL)) {
ofp_fatal(errno, "sigterm(SIGINT) failed");
}
pkhdr = new struct pcap_pkthdr;
if (nbIsInitialized() == nbFAILURE)
{
if (stat(NETPDLFILE, &netpdlstat) > 0 || errno != ENOENT)
{
NetPDLFileName += sizeof(NETPDLDIR) + 1 - 1; /* null char and '/' cancel out */
}
if (nbInitialize(NetPDLFileName, NetPDLProtoDBFlags, ErrBuf, sizeof(ErrBuf)) == nbFAILURE)
{
printf("Error initializing the NetBee Library; %s\n", ErrBuf);
return nbFAILURE;
}
}
Decoder= nbAllocatePacketDecoder(NetPDLDecoderFlags, ErrBuf, sizeof(ErrBuf));
if (Decoder == NULL)
{
printf("Error creating the NetPDLParser: %s.\n", ErrBuf);
return nbFAILURE;
}
// Get the PacketDecoderVars; let's do the check, although it is not really needed
if ((PacketDecoderVars= Decoder->GetPacketDecoderVars()) == NULL)
{
printf("Error: cannot get an instance of the nbPacketDecoderVars class.\n");
return nbFAILURE;
}
// Set the appropriate NetPDL configuration variables
// PacketDecoderVars->SetVariableNumber((char*) NETPDL_VARIABLE_SHOWNETWORKNAMES, ShowNetworkNames);
if (PacketDecoderVars->SetVariableNumber((char*) NETPDL_VARIABLE_SHOWNETWORKNAMES, ShowNetworkNames)==nbFAILURE)
{
printf("Error: cannot set variables of the decoder properly.\n");
return nbFAILURE;
}
PDMLReader = Decoder->GetPDMLReader();
return 0;
}
/* Convert 'str_' (as described in the Flow Syntax section of the ovs-ofctl man
* page) into 'fm' for sending the specified flow_mod 'command' to a switch.
* If 'actions' is specified, an action must be in 'string' and may be expanded
* or reallocated.
*
* To parse syntax for an OFPT_FLOW_MOD (or NXT_FLOW_MOD), use an OFPFC_*
* constant for 'command'. To parse syntax for an OFPST_FLOW or
* OFPST_AGGREGATE (or NXST_FLOW or NXST_AGGREGATE), use -1 for 'command'. */
void
parse_ofp_str(struct ofputil_flow_mod *fm, int command, const char *str_,
bool verbose)
{
enum {
F_OUT_PORT = 1 << 0,
F_ACTIONS = 1 << 1,
F_TIMEOUT = 1 << 3,
F_PRIORITY = 1 << 4
} fields;
char *string = xstrdup(str_);
char *save_ptr = NULL;
char *act_str = NULL;
char *name;
switch (command) {
case -1:
fields = F_OUT_PORT;
break;
case OFPFC_ADD:
fields = F_ACTIONS | F_TIMEOUT | F_PRIORITY;
break;
case OFPFC_DELETE:
fields = F_OUT_PORT;
break;
case OFPFC_DELETE_STRICT:
fields = F_OUT_PORT | F_PRIORITY;
break;
case OFPFC_MODIFY:
fields = F_ACTIONS;
break;
case OFPFC_MODIFY_STRICT:
fields = F_ACTIONS | F_PRIORITY;
break;
default:
NOT_REACHED();
}
cls_rule_init_catchall(&fm->cr, OFP_DEFAULT_PRIORITY);
fm->cookie = htonll(0);
fm->cookie_mask = htonll(0);
if (command == OFPFC_MODIFY || command == OFPFC_MODIFY_STRICT) {
/* For modify, by default, don't update the cookie. */
fm->new_cookie = htonll(UINT64_MAX);
} else{
fm->new_cookie = htonll(0);
}
fm->table_id = 0xff;
fm->command = command;
fm->idle_timeout = OFP_FLOW_PERMANENT;
fm->hard_timeout = OFP_FLOW_PERMANENT;
fm->buffer_id = UINT32_MAX;
fm->out_port = OFPP_NONE;
fm->flags = 0;
if (fields & F_ACTIONS) {
act_str = strstr(string, "action");
if (!act_str) {
ofp_fatal(str_, verbose, "must specify an action");
}
*act_str = '\0';
act_str = strchr(act_str + 1, '=');
if (!act_str) {
ofp_fatal(str_, verbose, "must specify an action");
}
act_str++;
}
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)) {
cls_rule_set_dl_type(&fm->cr, htons(p->dl_type));
if (p->nw_proto) {
cls_rule_set_nw_proto(&fm->cr, p->nw_proto);
}
} else {
char *value;
value = strtok_r(NULL, ", \t\r\n", &save_ptr);
if (!value) {
ofp_fatal(str_, verbose, "field %s missing value", name);
}
if (!strcmp(name, "table")) {
fm->table_id = str_to_table_id(value);
} else if (!strcmp(name, "out_port")) {
fm->out_port = atoi(value);
} else if (fields & F_PRIORITY && !strcmp(name, "priority")) {
fm->cr.priority = str_to_u16(value, name);
} else if (fields & F_TIMEOUT && !strcmp(name, "idle_timeout")) {
fm->idle_timeout = str_to_u16(value, name);
} else if (fields & F_TIMEOUT && !strcmp(name, "hard_timeout")) {
fm->hard_timeout = str_to_u16(value, name);
} else if (!strcmp(name, "cookie")) {
char *mask = strchr(value, '/');
if (mask) {
/* A mask means we're searching for a cookie. */
if (command == OFPFC_ADD) {
ofp_fatal(str_, verbose, "flow additions cannot use "
"a cookie mask");
}
*mask = '\0';
fm->cookie = htonll(str_to_u64(value));
fm->cookie_mask = htonll(str_to_u64(mask+1));
} else {
/* No mask means that the cookie is being set. */
if (command != OFPFC_ADD && command != OFPFC_MODIFY
&& command != OFPFC_MODIFY_STRICT) {
ofp_fatal(str_, verbose, "cannot set cookie");
}
fm->new_cookie = htonll(str_to_u64(value));
}
} else if (mf_from_name(name)) {
parse_field(mf_from_name(name), value, &fm->cr);
} else if (!strcmp(name, "duration")
|| !strcmp(name, "n_packets")
|| !strcmp(name, "n_bytes")) {
/* Ignore these, so that users can feed the output of
* "ovs-ofctl dump-flows" back into commands that parse
* flows. */
} else {
ofp_fatal(str_, verbose, "unknown keyword %s", name);
}
}
}
if (!fm->cookie_mask && fm->new_cookie == htonll(UINT64_MAX)
&& (command == OFPFC_MODIFY || command == OFPFC_MODIFY_STRICT)) {
/* On modifies without a mask, we are supposed to add a flow if
* one does not exist. If a cookie wasn't been specified, use a
* default of zero. */
fm->new_cookie = htonll(0);
}
if (fields & F_ACTIONS) {
struct ofpbuf actions;
ofpbuf_init(&actions, sizeof(union ofp_action));
str_to_action(&fm->cr.flow, act_str, &actions);
fm->actions = ofpbuf_steal_data(&actions);
fm->n_actions = actions.size / sizeof(union ofp_action);
} else {
fm->actions = NULL;
fm->n_actions = 0;
}
free(string);
}
int main(int argc, char *argv[])
{
static const struct option long_options[] = {
/* Target options must come first. */
{"all", no_argument, NULL, 'a'},
{"target", required_argument, NULL, 't'},
{"help", no_argument, NULL, 'h'},
/* Action options come afterward. */
{"list", no_argument, NULL, 'l'},
{"set", required_argument, NULL, 's'},
{"reopen", no_argument, NULL, 'r'},
{0, 0, 0, 0},
};
char *short_options;
/* Determine targets. */
bool ok = true;
int n_actions = 0;
struct vlog_client **clients = NULL;
size_t n_clients = 0;
set_program_name(argv[0]);
time_init();
short_options = long_options_to_short_options(long_options);
for (;;) {
int option;
size_t i;
option = getopt_long(argc, argv, short_options, long_options, NULL);
if (option == -1) {
break;
}
if (!strchr("ath", option) && n_clients == 0) {
ofp_fatal(0, "no targets specified (use --help for help)");
} else {
++n_actions;
}
switch (option) {
case 'a':
add_all_targets(&clients, &n_clients, &ok);
break;
case 't':
add_target(&clients, &n_clients, optarg, &ok);
break;
case 'l':
for (i = 0; i < n_clients; i++) {
struct vlog_client *client = clients[i];
char *reply;
printf("%s:\n", vlog_client_target(client));
reply = transact(client, "list", &ok);
fputs(reply, stdout);
free(reply);
}
break;
case 's':
for (i = 0; i < n_clients; i++) {
struct vlog_client *client = clients[i];
char *request = xasprintf("set %s", optarg);
transact_ack(client, request, &ok);
free(request);
}
break;
case 'r':
for (i = 0; i < n_clients; i++) {
struct vlog_client *client = clients[i];
char *request = xstrdup("reopen");
transact_ack(client, request, &ok);
free(request);
}
break;
case 'h':
usage(argv[0], EXIT_SUCCESS);
break;
case '?':
exit(EXIT_FAILURE);
default:
NOT_REACHED();
}
}
if (!n_actions) {
fprintf(stderr,
"warning: no actions specified (use --help for help)\n");
}
exit(ok ? 0 : 1);
}
static void
parse_options(int argc, char *argv[])
{
enum {
OPT_MAX_BACKOFF = UCHAR_MAX + 1,
OPT_MFR_DESC,
OPT_HW_DESC,
OPT_SW_DESC,
OPT_SERIAL_NUM,
OPT_BOOTSTRAP_CA_CERT
};
static struct option long_options[] = {
{"interfaces", required_argument, 0, 'i'},
{"datapath-id", required_argument, 0, 'd'},
{"max-backoff", required_argument, 0, OPT_MAX_BACKOFF},
{"listen", required_argument, 0, 'l'},
{"verbose", optional_argument, 0, 'v'},
{"help", no_argument, 0, 'h'},
{"version", no_argument, 0, 'V'},
{"mfr-desc", required_argument, 0, OPT_MFR_DESC},
{"hw-desc", required_argument, 0, OPT_HW_DESC},
{"sw-desc", required_argument, 0, OPT_SW_DESC},
{"serial_num", required_argument, 0, OPT_SERIAL_NUM},
DAEMON_LONG_OPTIONS,
#ifdef HAVE_OPENSSL
VCONN_SSL_LONG_OPTIONS
{"bootstrap-ca-cert", required_argument, 0, OPT_BOOTSTRAP_CA_CERT},
#endif
{0, 0, 0, 0},
};
char *short_options = long_options_to_short_options(long_options);
for (;;) {
int indexptr;
int c;
c = getopt_long(argc, argv, short_options, long_options, &indexptr);
if (c == -1) {
break;
}
switch (c) {
case 'd':
if (strlen(optarg) != 12
|| strspn(optarg, "0123456789abcdefABCDEF") != 12) {
ofp_fatal(0, "argument to -d or --datapath-id must be "
"exactly 12 hex digits");
}
dpid = strtoll(optarg, NULL, 16);
if (!dpid) {
ofp_fatal(0, "argument to -d or --datapath-id must "
"be nonzero");
}
break;
case 'h':
usage();
case 'V':
printf("%s %s compiled "__DATE__" "__TIME__"\n",
program_name, VERSION BUILDNR);
exit(EXIT_SUCCESS);
case 'v':
vlog_set_verbosity(optarg);
break;
case 'i':
if (!port_list) {
port_list = optarg;
} else {
port_list = xasprintf("%s,%s", port_list, optarg);
}
break;
case OPT_MAX_BACKOFF:
max_backoff = atoi(optarg);
if (max_backoff < 1) {
ofp_fatal(0, "--max-backoff argument must be at least 1");
} else if (max_backoff > 3600) {
max_backoff = 3600;
}
break;
case OPT_MFR_DESC:
strncpy(mfr_desc, optarg, sizeof mfr_desc);
break;
case OPT_HW_DESC:
strncpy(hw_desc, optarg, sizeof hw_desc);
break;
case OPT_SW_DESC:
strncpy(sw_desc, optarg, sizeof sw_desc);
break;
case OPT_SERIAL_NUM:
strncpy(serial_num, optarg, sizeof serial_num);
break;
case 'l':
if (listen_pvconn_name) {
ofp_fatal(0, "-l or --listen may be only specified once");
}
listen_pvconn_name = optarg;
break;
DAEMON_OPTION_HANDLERS
#ifdef HAVE_OPENSSL
VCONN_SSL_OPTION_HANDLERS
case OPT_BOOTSTRAP_CA_CERT:
vconn_ssl_set_ca_cert_file(optarg, true);
break;
#endif
case '?':
exit(EXIT_FAILURE);
default:
abort();
}
}
free(short_options);
}
