int fd;
};
-static const struct netdev_rx_class netdev_rx_linux_class;
-
/* This is set pretty low because we probably won't learn anything from the
* additional log messages. */
static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(5, 20);
static struct netdev_rx_linux *
netdev_rx_linux_cast(const struct netdev_rx *rx)
{
- netdev_rx_assert_class(rx, &netdev_rx_linux_class);
+ ovs_assert(is_netdev_linux_class(netdev_get_class(rx->netdev)));
return CONTAINER_OF(rx, struct netdev_rx_linux, up);
}
\f
}
}
+static struct netdev *
+netdev_linux_alloc(void)
+{
+ struct netdev_linux *netdev = xzalloc(sizeof *netdev);
+ return &netdev->up;
+}
+
+static int
+netdev_linux_common_construct(struct netdev_linux *netdev)
+{
+ netdev->change_seq = 1;
+
+ return cache_notifier_ref();
+}
+
/* Creates system and internal devices. */
static int
-netdev_linux_create(const struct netdev_class *class, const char *name,
- struct netdev **netdevp)
+netdev_linux_construct(struct netdev *netdev_)
{
- struct netdev_linux *netdev;
+ struct netdev_linux *netdev = netdev_linux_cast(netdev_);
int error;
- error = cache_notifier_ref();
+ error = netdev_linux_common_construct(netdev);
if (error) {
return error;
}
- netdev = xzalloc(sizeof *netdev);
- netdev->change_seq = 1;
- netdev_init(&netdev->up, name, class);
error = get_flags(&netdev->up, &netdev->ifi_flags);
if (error == ENODEV) {
- if (class != &netdev_internal_class) {
+ if (netdev->up.netdev_class != &netdev_internal_class) {
/* The device does not exist, so don't allow it to be opened. */
- netdev_uninit(&netdev->up, false);
cache_notifier_unref();
- free(netdev);
return ENODEV;
} else {
/* "Internal" netdevs have to be created as netdev objects before
}
}
- *netdevp = &netdev->up;
return 0;
}
* buffers, across all readers. Therefore once data is read it will
* be unavailable to other reads for tap devices. */
static int
-netdev_linux_create_tap(const struct netdev_class *class OVS_UNUSED,
- const char *name, struct netdev **netdevp)
+netdev_linux_construct_tap(struct netdev *netdev_)
{
- struct netdev_linux *netdev;
+ struct netdev_linux *netdev = netdev_linux_cast(netdev_);
static const char tap_dev[] = "/dev/net/tun";
+ const char *name = netdev_->name;
struct ifreq ifr;
int error;
- netdev = xzalloc(sizeof *netdev);
- netdev->change_seq = 1;
-
- error = cache_notifier_ref();
+ error = netdev_linux_common_construct(netdev);
if (error) {
goto error;
}
goto error_close;
}
- netdev_init(&netdev->up, name, &netdev_tap_class);
- *netdevp = &netdev->up;
return 0;
error_close:
error_unref_notifier:
cache_notifier_unref();
error:
- free(netdev);
return error;
}
static void
-netdev_linux_destroy(struct netdev *netdev_)
+netdev_linux_destruct(struct netdev *netdev_)
{
struct netdev_linux *netdev = netdev_linux_cast(netdev_);
{
close(netdev->tap_fd);
}
- free(netdev);
cache_notifier_unref();
}
+static void
+netdev_linux_dealloc(struct netdev *netdev_)
+{
+ struct netdev_linux *netdev = netdev_linux_cast(netdev_);
+ free(netdev);
+}
+
+static struct netdev_rx *
+netdev_linux_rx_alloc(void)
+{
+ struct netdev_rx_linux *rx = xzalloc(sizeof *rx);
+ return &rx->up;
+}
+
static int
-netdev_linux_rx_open(struct netdev *netdev_, struct netdev_rx **rxp)
+netdev_linux_rx_construct(struct netdev_rx *rx_)
{
+ struct netdev_rx_linux *rx = netdev_rx_linux_cast(rx_);
+ struct netdev *netdev_ = rx->up.netdev;
struct netdev_linux *netdev = netdev_linux_cast(netdev_);
- bool is_tap = is_tap_netdev(netdev_);
- struct netdev_rx_linux *rx;
int error;
- int fd;
- if (is_tap) {
- fd = netdev->tap_fd;
+ rx->is_tap = is_tap_netdev(netdev_);
+ if (rx->is_tap) {
+ rx->fd = netdev->tap_fd;
} else {
struct sockaddr_ll sll;
int ifindex;
};
/* Create file descriptor. */
- fd = socket(PF_PACKET, SOCK_RAW, 0);
- if (fd < 0) {
+ rx->fd = socket(PF_PACKET, SOCK_RAW, 0);
+ if (rx->fd < 0) {
error = errno;
VLOG_ERR("failed to create raw socket (%s)", ovs_strerror(error));
goto error;
}
/* Set non-blocking mode. */
- error = set_nonblocking(fd);
+ error = set_nonblocking(rx->fd);
if (error) {
goto error;
}
sll.sll_family = AF_PACKET;
sll.sll_ifindex = ifindex;
sll.sll_protocol = (OVS_FORCE unsigned short int) htons(ETH_P_ALL);
- if (bind(fd, (struct sockaddr *) &sll, sizeof sll) < 0) {
+ if (bind(rx->fd, (struct sockaddr *) &sll, sizeof sll) < 0) {
error = errno;
VLOG_ERR("%s: failed to bind raw socket (%s)",
netdev_get_name(netdev_), ovs_strerror(error));
}
/* Filter for only inbound packets. */
- error = setsockopt(fd, SOL_SOCKET, SO_ATTACH_FILTER, &fprog,
+ error = setsockopt(rx->fd, SOL_SOCKET, SO_ATTACH_FILTER, &fprog,
sizeof fprog);
if (error) {
error = errno;
}
}
- rx = xmalloc(sizeof *rx);
- netdev_rx_init(&rx->up, netdev_, &netdev_rx_linux_class);
- rx->is_tap = is_tap;
- rx->fd = fd;
-
- *rxp = &rx->up;
return 0;
error:
- if (fd >= 0) {
- close(fd);
+ if (rx->fd >= 0) {
+ close(rx->fd);
}
return error;
}
static void
-netdev_rx_linux_destroy(struct netdev_rx *rx_)
+netdev_linux_rx_destruct(struct netdev_rx *rx_)
{
struct netdev_rx_linux *rx = netdev_rx_linux_cast(rx_);
if (!rx->is_tap) {
close(rx->fd);
}
+}
+
+static void
+netdev_linux_rx_dealloc(struct netdev_rx *rx_)
+{
+ struct netdev_rx_linux *rx = netdev_rx_linux_cast(rx_);
+
free(rx);
}
static int
-netdev_rx_linux_recv(struct netdev_rx *rx_, void *data, size_t size)
+netdev_linux_rx_recv(struct netdev_rx *rx_, void *data, size_t size)
{
struct netdev_rx_linux *rx = netdev_rx_linux_cast(rx_);
ssize_t retval;
}
static void
-netdev_rx_linux_wait(struct netdev_rx *rx_)
+netdev_linux_rx_wait(struct netdev_rx *rx_)
{
struct netdev_rx_linux *rx = netdev_rx_linux_cast(rx_);
poll_fd_wait(rx->fd, POLLIN);
}
static int
-netdev_rx_linux_drain(struct netdev_rx *rx_)
+netdev_linux_rx_drain(struct netdev_rx *rx_)
{
struct netdev_rx_linux *rx = netdev_rx_linux_cast(rx_);
if (rx->is_tap) {
return netdev_linux_cast(netdev)->change_seq;
}
-#define NETDEV_LINUX_CLASS(NAME, CREATE, GET_STATS, SET_STATS, \
+#define NETDEV_LINUX_CLASS(NAME, CONSTRUCT, GET_STATS, SET_STATS, \
GET_FEATURES, GET_STATUS) \
{ \
NAME, \
netdev_linux_run, \
netdev_linux_wait, \
\
- CREATE, \
- netdev_linux_destroy, \
+ netdev_linux_alloc, \
+ CONSTRUCT, \
+ netdev_linux_destruct, \
+ netdev_linux_dealloc, \
NULL, /* get_config */ \
NULL, /* set_config */ \
NULL, /* get_tunnel_config */ \
\
- netdev_linux_rx_open, \
- \
netdev_linux_send, \
netdev_linux_send_wait, \
\
\
netdev_linux_update_flags, \
\
- netdev_linux_change_seq \
+ netdev_linux_change_seq, \
+ \
+ netdev_linux_rx_alloc, \
+ netdev_linux_rx_construct, \
+ netdev_linux_rx_destruct, \
+ netdev_linux_rx_dealloc, \
+ netdev_linux_rx_recv, \
+ netdev_linux_rx_wait, \
+ netdev_linux_rx_drain, \
}
const struct netdev_class netdev_linux_class =
NETDEV_LINUX_CLASS(
"system",
- netdev_linux_create,
+ netdev_linux_construct,
netdev_linux_get_stats,
NULL, /* set_stats */
netdev_linux_get_features,
const struct netdev_class netdev_tap_class =
NETDEV_LINUX_CLASS(
"tap",
- netdev_linux_create_tap,
+ netdev_linux_construct_tap,
netdev_tap_get_stats,
NULL, /* set_stats */
netdev_linux_get_features,
const struct netdev_class netdev_internal_class =
NETDEV_LINUX_CLASS(
"internal",
- netdev_linux_create,
+ netdev_linux_construct,
netdev_internal_get_stats,
netdev_internal_set_stats,
NULL, /* get_features */
netdev_internal_get_status);
-
-static const struct netdev_rx_class netdev_rx_linux_class = {
- netdev_rx_linux_destroy,
- netdev_rx_linux_recv,
- netdev_rx_linux_wait,
- netdev_rx_linux_drain,
-};
\f
/* HTB traffic control class. */
git://git.onelab.eu / sliver-openvswitch.git / blobdiff