-/* Copyright (C) 2007 Board of Trustees, Leland Stanford Jr. University.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to
- * deal in the Software without restriction, including without limitation the
- * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
+/* Copyright (c) 2008 The Board of Trustees of The Leland Stanford
+ * Junior University
+ *
+ * We are making the OpenFlow specification and associated documentation
+ * (Software) available for public use and benefit with the expectation
+ * that others will use, modify and enhance the Software and contribute
+ * those enhancements back to the community. However, since we would
+ * like to make the Software available for broadest use, with as few
+ * restrictions as possible permission is hereby granted, free of
+ * charge, to any person obtaining a copy of this Software to deal in
+ * the Software under the copyrights without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * The name and trademarks of copyright holder(s) may NOT be used in
+ * advertising or publicity pertaining to the Software or any
+ * derivatives without specific, written prior permission.
*/
+#include <config.h>
#include "vconn.h"
-#include <assert.h>
#include <errno.h>
-#include <netdb.h>
-#include <poll.h>
+#include <inttypes.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
-#include "buffer.h"
+#include "packets.h"
#include "socket-util.h"
#include "util.h"
-#include "openflow.h"
-#include "ofp-print.h"
+#include "openflow/openflow.h"
+#include "vconn-provider.h"
+#include "vconn-stream.h"
#include "vlog.h"
#define THIS_MODULE VLM_vconn_tcp
/* Active TCP. */
-struct tcp_vconn
-{
- struct vconn vconn;
- int fd;
- struct buffer *rxbuf;
- struct buffer *txbuf;
-};
-
static int
-new_tcp_vconn(const char *name, int fd, struct vconn **vconnp)
+new_tcp_vconn(const char *name, int fd, int connect_status,
+ const struct sockaddr_in *sin, struct vconn **vconnp)
{
- struct tcp_vconn *tcp;
int on = 1;
int retval;
- retval = set_nonblocking(fd);
- if (retval) {
- VLOG_ERR("%s: set_nonblocking: %s", name, strerror(retval));
- close(fd);
- return retval;
- }
-
retval = setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &on, sizeof on);
if (retval) {
VLOG_ERR("%s: setsockopt(TCP_NODELAY): %s", name, strerror(errno));
return errno;
}
- tcp = xmalloc(sizeof *tcp);
- tcp->vconn.class = &tcp_vconn_class;
- tcp->fd = fd;
- tcp->txbuf = NULL;
- tcp->rxbuf = NULL;
- *vconnp = &tcp->vconn;
- return 0;
+ return new_stream_vconn(name, fd, connect_status, sin->sin_addr.s_addr,
+ vconnp);
}
-static struct tcp_vconn *
-tcp_vconn_cast(struct vconn *vconn)
-{
- assert(vconn->class == &tcp_vconn_class);
- return CONTAINER_OF(vconn, struct tcp_vconn, vconn);
-}
-
-
static int
tcp_open(const char *name, char *suffix, struct vconn **vconnp)
{
host_name = strtok_r(suffix, "::", &save_ptr);
port_string = strtok_r(NULL, "::", &save_ptr);
if (!host_name) {
- fatal(0, "%s: bad peer name format", name);
+ ofp_error(0, "%s: bad peer name format", name);
+ return EAFNOSUPPORT;
}
memset(&sin, 0, sizeof sin);
return errno;
}
- retval = connect(fd, (struct sockaddr *) &sin, sizeof sin);
- if (retval < 0) {
- int error = errno;
- VLOG_ERR("%s: connect: %s", name, strerror(error));
+ retval = set_nonblocking(fd);
+ if (retval) {
close(fd);
- return error;
- }
-
- return new_tcp_vconn(name, fd, vconnp);
-}
-
-static void
-tcp_close(struct vconn *vconn)
-{
- struct tcp_vconn *tcp = tcp_vconn_cast(vconn);
- close(tcp->fd);
- free(tcp);
-}
-
-static void
-tcp_prepoll(struct vconn *vconn, int want, struct pollfd *pfd)
-{
- struct tcp_vconn *tcp = tcp_vconn_cast(vconn);
- pfd->fd = tcp->fd;
- if (want & WANT_RECV) {
- pfd->events |= POLLIN;
- }
- if (want & WANT_SEND || tcp->txbuf) {
- pfd->events |= POLLOUT;
- }
-}
-
-static void
-tcp_postpoll(struct vconn *vconn, short int *revents)
-{
- struct tcp_vconn *tcp = tcp_vconn_cast(vconn);
- if (*revents & POLLOUT && tcp->txbuf) {
- ssize_t n = write(tcp->fd, tcp->txbuf->data, tcp->txbuf->size);
- if (n < 0) {
- if (errno != EAGAIN) {
- VLOG_ERR("send: %s", strerror(errno));
- *revents |= POLLERR;
- }
- } else if (n > 0) {
- buffer_pull(tcp->txbuf, n);
- if (tcp->txbuf->size == 0) {
- buffer_delete(tcp->txbuf);
- tcp->txbuf = NULL;
- }
- }
- if (tcp->txbuf) {
- *revents &= ~POLLOUT;
- }
- }
-}
-
-static int
-tcp_recv(struct vconn *vconn, struct buffer **bufferp)
-{
- struct tcp_vconn *tcp = tcp_vconn_cast(vconn);
- struct buffer *rx;
- size_t want_bytes;
- ssize_t retval;
-
- if (tcp->rxbuf == NULL) {
- tcp->rxbuf = buffer_new(1564);
- }
- rx = tcp->rxbuf;
-
-again:
- if (sizeof(struct ofp_header) > rx->size) {
- want_bytes = sizeof(struct ofp_header) - rx->size;
- } else {
- struct ofp_header *oh = rx->data;
- size_t length = ntohs(oh->length);
- if (length < sizeof(struct ofp_header)) {
- VLOG_ERR("received too-short ofp_header (%zu bytes)", length);
- return EPROTO;
- }
- want_bytes = length - rx->size;
- }
- buffer_reserve_tailroom(rx, want_bytes);
-
- retval = read(tcp->fd, buffer_tail(rx), want_bytes);
- if (retval > 0) {
- rx->size += retval;
- if (retval == want_bytes) {
- if (rx->size > sizeof(struct ofp_header)) {
- *bufferp = rx;
- tcp->rxbuf = NULL;
- return 0;
- } else {
- goto again;
- }
- }
- return EAGAIN;
- } else if (retval == 0) {
- return rx->size ? EPROTO : EOF;
- } else {
- return retval ? errno : EAGAIN;
- }
-}
-
-static int
-tcp_send(struct vconn *vconn, struct buffer *buffer)
-{
- struct tcp_vconn *tcp = tcp_vconn_cast(vconn);
- ssize_t retval;
-
- if (tcp->txbuf) {
- return EAGAIN;
+ return retval;
}
- retval = write(tcp->fd, buffer->data, buffer->size);
- if (retval == buffer->size) {
- buffer_delete(buffer);
- return 0;
- } else if (retval >= 0 || errno == EAGAIN) {
- tcp->txbuf = buffer;
- if (retval > 0) {
- buffer_pull(buffer, retval);
+ retval = connect(fd, (struct sockaddr *) &sin, sizeof sin);
+ if (retval < 0) {
+ if (errno == EINPROGRESS) {
+ return new_tcp_vconn(name, fd, EAGAIN, &sin, vconnp);
+ } else {
+ int error = errno;
+ VLOG_ERR("%s: connect: %s", name, strerror(error));
+ close(fd);
+ return error;
}
- return 0;
} else {
- return errno;
+ return new_tcp_vconn(name, fd, 0, &sin, vconnp);
}
}
struct vconn_class tcp_vconn_class = {
- .name = "tcp",
- .open = tcp_open,
- .close = tcp_close,
- .prepoll = tcp_prepoll,
- .postpoll = tcp_postpoll,
- .recv = tcp_recv,
- .send = tcp_send,
+ "tcp", /* name */
+ tcp_open, /* open */
+ NULL, /* close */
+ NULL, /* connect */
+ NULL, /* recv */
+ NULL, /* send */
+ NULL, /* wait */
};
\f
/* Passive TCP. */
-struct ptcp_vconn
-{
- struct vconn vconn;
- int fd;
-};
-
-static struct ptcp_vconn *
-ptcp_vconn_cast(struct vconn *vconn)
-{
- assert(vconn->class == &ptcp_vconn_class);
- return CONTAINER_OF(vconn, struct ptcp_vconn, vconn);
-}
+static int ptcp_accept(int fd, const struct sockaddr *sa, size_t sa_len,
+ struct vconn **vconnp);
static int
-ptcp_open(const char *name, char *suffix, struct vconn **vconnp)
+ptcp_open(const char *name, char *suffix, struct pvconn **pvconnp)
{
struct sockaddr_in sin;
- struct ptcp_vconn *ptcp;
int retval;
int fd;
unsigned int yes = 1;
return errno;
}
- if ( setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,&yes,sizeof(yes)) < 0) {
- VLOG_ERR("%s: setsockopt::SO_REUSEADDR: %s", name, strerror(errno));
+ if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof yes) < 0) {
+ VLOG_ERR("%s: setsockopt(SO_REUSEADDR): %s", name, strerror(errno));
return errno;
}
-
memset(&sin, 0, sizeof sin);
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = htonl(INADDR_ANY);
return error;
}
- retval = listen(fd, 10);
- if (retval < 0) {
- int error = errno;
- VLOG_ERR("%s: listen: %s", name, strerror(error));
- close(fd);
- return error;
- }
-
- retval = set_nonblocking(fd);
- if (retval) {
- VLOG_ERR("%s: set_nonblocking: %s", name, strerror(retval));
- close(fd);
- return retval;
- }
-
- ptcp = xmalloc(sizeof *ptcp);
- ptcp->vconn.class = &ptcp_vconn_class;
- ptcp->fd = fd;
- *vconnp = &ptcp->vconn;
- return 0;
-}
-
-static void
-ptcp_close(struct vconn *vconn)
-{
- struct ptcp_vconn *ptcp = ptcp_vconn_cast(vconn);
- close(ptcp->fd);
- free(ptcp);
-}
-
-static void
-ptcp_prepoll(struct vconn *vconn, int want, struct pollfd *pfd)
-{
- struct ptcp_vconn *ptcp = ptcp_vconn_cast(vconn);
- pfd->fd = ptcp->fd;
- if (want & WANT_ACCEPT) {
- pfd->events |= POLLIN;
- }
+ return new_pstream_pvconn("ptcp", fd, ptcp_accept, pvconnp);
}
static int
-ptcp_accept(struct vconn *vconn, struct vconn **new_vconnp)
+ptcp_accept(int fd, const struct sockaddr *sa, size_t sa_len,
+ struct vconn **vconnp)
{
- struct ptcp_vconn *ptcp = ptcp_vconn_cast(vconn);
- int new_fd;
+ const struct sockaddr_in *sin = (const struct sockaddr_in *) sa;
+ char name[128];
- new_fd = accept(ptcp->fd, NULL, NULL);
- if (new_fd < 0) {
- return errno;
+ if (sa_len == sizeof(struct sockaddr_in) && sin->sin_family == AF_INET) {
+ sprintf(name, "tcp:"IP_FMT, IP_ARGS(&sin->sin_addr));
+ if (sin->sin_port != htons(OFP_TCP_PORT)) {
+ sprintf(strchr(name, '\0'), ":%"PRIu16, ntohs(sin->sin_port));
+ }
+ } else {
+ strcpy(name, "tcp");
}
-
- return new_tcp_vconn("tcp" /* FIXME */, new_fd, new_vconnp);
+ return new_tcp_vconn(name, fd, 0, sin, vconnp);
}
-struct vconn_class ptcp_vconn_class = {
- .name = "ptcp",
- .open = ptcp_open,
- .close = ptcp_close,
- .prepoll = ptcp_prepoll,
- .accept = ptcp_accept,
+struct pvconn_class ptcp_pvconn_class = {
+ "ptcp",
+ ptcp_open,
};
git://git.onelab.eu / sliver-openvswitch.git / blobdiff