#include "mac.h"
#include "ofp-print.h"
#include "openflow.h"
+#include "poll-loop.h"
#include "time.h"
#include "util.h"
+#include "vconn-ssl.h"
#include "vconn.h"
#include "vlog-socket.h"
#include "xtoxll.h"
struct switch_ {
char *name;
struct vconn *vconn;
- struct pollfd *pollfd;
uint64_t datapath_id;
time_t last_control_hello;
main(int argc, char *argv[])
{
struct switch_ *switches[MAX_SWITCHES];
- struct pollfd pollfds[MAX_SWITCHES + 1];
- struct vlog_server *vlog_server;
int n_switches;
int retval;
int i;
fatal(0, "at least one vconn argument required; use --help for usage");
}
- retval = vlog_server_listen(NULL, &vlog_server);
+ retval = vlog_server_listen(NULL, NULL);
if (retval) {
fatal(retval, "Could not listen for vlog connections");
}
if (n_switches == 0) {
fatal(0, "could not connect to any switches");
}
-
- while (n_switches > 0) {
- int retval;
-
- /* Wait until there's something to do. */
- for (i = 0; i < n_switches; i++) {
- struct switch_ *this = switches[i];
- int want;
-
- if (vconn_is_passive(this->vconn)) {
- want = n_switches < MAX_SWITCHES ? WANT_ACCEPT : 0;
- } else {
- want = WANT_RECV;
- if (this->n_txq) {
- want |= WANT_SEND;
- }
- }
-
- this->pollfd = &pollfds[i];
- this->pollfd->fd = -1;
- this->pollfd->events = 0;
- vconn_prepoll(this->vconn, want, this->pollfd);
- }
- if (vlog_server) {
- pollfds[n_switches].fd = vlog_server_get_fd(vlog_server);
- pollfds[n_switches].events = POLLIN;
- }
- do {
- retval = poll(pollfds, n_switches + (vlog_server != NULL), -1);
- } while (retval < 0 && errno == EINTR);
- if (retval <= 0) {
- fatal(retval < 0 ? errno : 0, "poll");
- }
-
- /* Let each connection deal with any pending operations. */
- for (i = 0; i < n_switches; i++) {
- struct switch_ *this = switches[i];
- vconn_postpoll(this->vconn, &this->pollfd->revents);
- if (this->pollfd->revents & POLLERR) {
- this->pollfd->revents |= POLLIN | POLLOUT;
- }
- }
- if (vlog_server && pollfds[n_switches].revents) {
- vlog_server_poll(vlog_server);
- }
- for (i = 0; i < n_switches; ) {
- struct switch_ *this = switches[i];
+ while (n_switches > 0) {
+ /* Do some work. Limit the number of iterations so that callbacks
+ * registered with the poll loop don't starve. */
+ int iteration;
+ int i;
+ for (iteration = 0; iteration < 50; iteration++) {
+ bool progress = false;
+ for (i = 0; i < n_switches; ) {
+ struct switch_ *this = switches[i];
+ int retval;
- if (this->pollfd) {
- retval = 0;
if (vconn_is_passive(this->vconn)) {
- if (this->pollfd->revents & POLLIN) {
+ retval = 0;
+ while (n_switches < MAX_SWITCHES) {
struct vconn *new_vconn;
- while (n_switches < MAX_SWITCHES
- && (retval = vconn_accept(this->vconn,
- &new_vconn)) == 0) {
- switches[n_switches++] = new_switch("tcp",
- new_vconn);
+ retval = vconn_accept(this->vconn, &new_vconn);
+ if (retval) {
+ break;
}
+ switches[n_switches++] = new_switch("tcp", new_vconn);
}
} else {
- bool may_read = this->pollfd->revents & POLLIN;
- bool may_write = this->pollfd->revents & POLLOUT;
- if (may_read) {
- retval = do_switch_recv(this);
- if (!retval || retval == EAGAIN) {
- retval = 0;
-
- /* Enable writing to avoid round trip through poll
- * in common case. */
- may_write = true;
- }
- }
- while ((!retval || retval == EAGAIN) && may_write) {
- retval = do_switch_send(this);
- may_write = !retval;
+ retval = do_switch_recv(this);
+ if (!retval || retval == EAGAIN) {
+ do {
+ retval = do_switch_send(this);
+ if (!retval) {
+ progress = true;
+ }
+ } while (!retval);
}
}
if (retval && retval != EAGAIN) {
close_switch(this);
switches[i] = switches[--n_switches];
- continue;
+ } else {
+ i++;
+ }
+ }
+ if (!progress) {
+ break;
+ }
+ }
+
+ /* Wait for something to happen. */
+ for (i = 0; i < n_switches; i++) {
+ struct switch_ *this = switches[i];
+ if (vconn_is_passive(this->vconn)) {
+ if (n_switches < MAX_SWITCHES) {
+ vconn_accept_wait(this->vconn);
}
} else {
- /* New switch that hasn't been polled yet. */
+ vconn_recv_wait(this->vconn);
+ if (this->n_txq) {
+ vconn_send_wait(this->vconn);
+ }
}
- i++;
}
+ poll_block();
}
return 0;
memset(this, 0, sizeof *this);
this->name = xstrdup(name);
this->vconn = vconn;
- this->pollfd = NULL;
this->n_txq = 0;
this->txq = NULL;
this->tx_tail = NULL;
{"verbose", optional_argument, 0, 'v'},
{"help", no_argument, 0, 'h'},
{"version", no_argument, 0, 'V'},
+#ifdef HAVE_OPENSSL
+ {"private-key", required_argument, 0, 'p'},
+ {"certificate", required_argument, 0, 'c'},
+ {"ca-cert", required_argument, 0, 'C'},
+#endif
{0, 0, 0, 0},
};
char *short_options = long_options_to_short_options(long_options);
vlog_set_verbosity(optarg);
break;
+#ifdef HAVE_OPENSSL
+ case 'p':
+ vconn_ssl_set_private_key_file(optarg);
+ break;
+
+ case 'c':
+ vconn_ssl_set_certificate_file(optarg);
+ break;
+
+ case 'C':
+ vconn_ssl_set_ca_cert_file(optarg);
+ break;
+#endif
+
case '?':
exit(EXIT_FAILURE);
printf("%s: OpenFlow controller\n"
"usage: %s [OPTIONS] VCONN\n"
"where VCONN is one of the following:\n"
+ " ptcp:[PORT] listen to TCP PORT (default: %d)\n",
+ program_name, program_name, OFP_TCP_PORT);
#ifdef HAVE_NETLINK
- " nl:DP_IDX via netlink to local datapath DP_IDX\n"
+ printf(" nl:DP_IDX via netlink to local datapath DP_IDX\n");
#endif
- " ptcp:[PORT] listen to TCP PORT (default: %d)\n"
- "\nOther options:\n"
+#ifdef HAVE_OPENSSL
+ printf(" pssl:[PORT] listen for SSL on PORT (default: %d)\n"
+ "\nPKI configuration (required to use SSL):\n"
+ " -p, --private-key=FILE file with private key\n"
+ " -c, --certificate=FILE file with certificate for private key\n"
+ " -C, --ca-cert=FILE file with peer CA certificate\n",
+ OFP_SSL_PORT);
+#endif
+ printf("\nOther options:\n"
" -H, --hub act as hub instead of learning switch\n"
" -n, --noflow pass traffic, but don't add flows\n"
" -v, --verbose set maximum verbosity level\n"
" -h, --help display this help message\n"
- " -V, --version display version information\n",
- program_name, program_name, OFP_TCP_PORT);
+ " -V, --version display version information\n");
exit(EXIT_SUCCESS);
}
projects / openvswitch / blobdiff