+++ /dev/null
-/*
- * Copyright (c) 2007-2012 Nicira, Inc.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/capability.h>
-#include <linux/kernel.h>
-#include <linux/netdevice.h>
-#include <linux/if_bridge.h>
-#include <linux/rtnetlink.h>
-
-#include "datapath.h"
-#include "dp_sysfs.h"
-#include "vport.h"
-
-#ifdef CONFIG_SYSFS
-
-struct brport_attribute {
- struct attribute attr;
- ssize_t (*show)(struct vport *, char *);
- ssize_t (*store)(struct vport *, unsigned long);
-};
-
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,36)
-#define BRPORT_ATTR(_name, _mode, _show, _store) \
-struct brport_attribute brport_attr_##_name = { \
- .attr = {.name = __stringify(_name), \
- .mode = _mode }, \
- .show = _show, \
- .store = _store, \
-};
-#else
-#define BRPORT_ATTR(_name, _mode, _show, _store) \
-struct brport_attribute brport_attr_##_name = { \
- .attr = {.name = __stringify(_name), \
- .mode = _mode, \
- .owner = THIS_MODULE, }, \
- .show = _show, \
- .store = _store, \
-};
-#endif
-
-static ssize_t show_path_cost(struct vport *p, char *buf)
-{
- return sprintf(buf, "%d\n", 0);
-}
-static ssize_t store_path_cost(struct vport *p, unsigned long v)
-{
- return 0;
-}
-static BRPORT_ATTR(path_cost, S_IRUGO | S_IWUSR,
- show_path_cost, store_path_cost);
-
-static ssize_t show_priority(struct vport *p, char *buf)
-{
- return sprintf(buf, "%d\n", 0);
-}
-static ssize_t store_priority(struct vport *p, unsigned long v)
-{
- return 0;
-}
-static BRPORT_ATTR(priority, S_IRUGO | S_IWUSR,
- show_priority, store_priority);
-
-static ssize_t show_designated_root(struct vport *p, char *buf)
-{
- return sprintf(buf, "0000.010203040506\n");
-}
-static BRPORT_ATTR(designated_root, S_IRUGO, show_designated_root, NULL);
-
-static ssize_t show_designated_bridge(struct vport *p, char *buf)
-{
- return sprintf(buf, "0000.060504030201\n");
-}
-static BRPORT_ATTR(designated_bridge, S_IRUGO, show_designated_bridge, NULL);
-
-static ssize_t show_designated_port(struct vport *p, char *buf)
-{
- return sprintf(buf, "%d\n", 0);
-}
-static BRPORT_ATTR(designated_port, S_IRUGO, show_designated_port, NULL);
-
-static ssize_t show_designated_cost(struct vport *p, char *buf)
-{
- return sprintf(buf, "%d\n", 0);
-}
-static BRPORT_ATTR(designated_cost, S_IRUGO, show_designated_cost, NULL);
-
-static ssize_t show_port_id(struct vport *p, char *buf)
-{
- return sprintf(buf, "0x%x\n", 0);
-}
-static BRPORT_ATTR(port_id, S_IRUGO, show_port_id, NULL);
-
-static ssize_t show_port_no(struct vport *p, char *buf)
-{
- return sprintf(buf, "0x%x\n", p->port_no);
-}
-
-static BRPORT_ATTR(port_no, S_IRUGO, show_port_no, NULL);
-
-static ssize_t show_change_ack(struct vport *p, char *buf)
-{
- return sprintf(buf, "%d\n", 0);
-}
-static BRPORT_ATTR(change_ack, S_IRUGO, show_change_ack, NULL);
-
-static ssize_t show_config_pending(struct vport *p, char *buf)
-{
- return sprintf(buf, "%d\n", 0);
-}
-static BRPORT_ATTR(config_pending, S_IRUGO, show_config_pending, NULL);
-
-static ssize_t show_port_state(struct vport *p, char *buf)
-{
- return sprintf(buf, "%d\n", 0);
-}
-static BRPORT_ATTR(state, S_IRUGO, show_port_state, NULL);
-
-static ssize_t show_message_age_timer(struct vport *p, char *buf)
-{
- return sprintf(buf, "%d\n", 0);
-}
-static BRPORT_ATTR(message_age_timer, S_IRUGO, show_message_age_timer, NULL);
-
-static ssize_t show_forward_delay_timer(struct vport *p, char *buf)
-{
- return sprintf(buf, "%d\n", 0);
-}
-static BRPORT_ATTR(forward_delay_timer, S_IRUGO, show_forward_delay_timer, NULL);
-
-static ssize_t show_hold_timer(struct vport *p, char *buf)
-{
- return sprintf(buf, "%d\n", 0);
-}
-static BRPORT_ATTR(hold_timer, S_IRUGO, show_hold_timer, NULL);
-
-static struct brport_attribute *brport_attrs[] = {
- &brport_attr_path_cost,
- &brport_attr_priority,
- &brport_attr_port_id,
- &brport_attr_port_no,
- &brport_attr_designated_root,
- &brport_attr_designated_bridge,
- &brport_attr_designated_port,
- &brport_attr_designated_cost,
- &brport_attr_state,
- &brport_attr_change_ack,
- &brport_attr_config_pending,
- &brport_attr_message_age_timer,
- &brport_attr_forward_delay_timer,
- &brport_attr_hold_timer,
- NULL
-};
-
-#define to_vport_attr(_at) container_of(_at, struct brport_attribute, attr)
-#define to_vport(obj) container_of(obj, struct vport, kobj)
-
-static ssize_t brport_show(struct kobject *kobj,
- struct attribute *attr, char *buf)
-{
- struct brport_attribute *brport_attr = to_vport_attr(attr);
- struct vport *p = to_vport(kobj);
-
- return brport_attr->show(p, buf);
-}
-
-static ssize_t brport_store(struct kobject *kobj,
- struct attribute *attr,
- const char *buf, size_t count)
-{
- struct vport *p = to_vport(kobj);
- ssize_t ret = -EINVAL;
-
- if (!capable(CAP_NET_ADMIN))
- return -EPERM;
-
- pr_warning("%s: xxx writing port parms not supported yet!\n",
- ovs_dp_name(p->dp));
-
- return ret;
-}
-
-struct sysfs_ops ovs_brport_sysfs_ops = {
- .show = brport_show,
- .store = brport_store,
-};
-
-/*
- * Add sysfs entries to ethernet device added to a bridge.
- * Creates a brport subdirectory with bridge attributes.
- * Puts symlink in bridge's brport subdirectory
- */
-int ovs_dp_sysfs_add_if(struct vport *p)
-{
- struct datapath *dp = p->dp;
- struct vport *local_port = ovs_vport_rtnl(dp, OVSP_LOCAL);
- struct brport_attribute **a;
- int err;
-
- /* Create /sys/class/net/<devname>/brport directory. */
- if (!p->ops->get_kobj)
- return -ENOENT;
-
-#ifdef CONFIG_NET_NS
- /* Due to bug in 2.6.32 kernel, sysfs_create_group() could panic
- * in other namespace than init_net. Following check is to avoid it. */
-
- if (!p->kobj.sd)
- return -ENOENT;
-#endif
-
- err = kobject_add(&p->kobj, p->ops->get_kobj(p),
- SYSFS_BRIDGE_PORT_ATTR);
- if (err)
- goto err;
-
- /* Create symlink from /sys/class/net/<devname>/brport/bridge to
- * /sys/class/net/<bridgename>. */
- err = sysfs_create_link(&p->kobj, local_port->ops->get_kobj(local_port),
- SYSFS_BRIDGE_PORT_LINK); /* "bridge" */
- if (err)
- goto err_del;
-
- /* Populate /sys/class/net/<devname>/brport directory with files. */
- for (a = brport_attrs; *a; ++a) {
- err = sysfs_create_file(&p->kobj, &((*a)->attr));
- if (err)
- goto err_del;
- }
-
- /* Create symlink from /sys/class/net/<bridgename>/brif/<devname> to
- * /sys/class/net/<devname>/brport. */
- err = sysfs_create_link(&dp->ifobj, &p->kobj, p->ops->get_name(p));
- if (err)
- goto err_del;
- strcpy(p->linkname, p->ops->get_name(p));
-
- kobject_uevent(&p->kobj, KOBJ_ADD);
-
- return 0;
-
-err_del:
- kobject_del(&p->kobj);
-err:
- p->linkname[0] = 0;
- return err;
-}
-
-int ovs_dp_sysfs_del_if(struct vport *p)
-{
- if (p->linkname[0]) {
- sysfs_remove_link(&p->dp->ifobj, p->linkname);
- kobject_uevent(&p->kobj, KOBJ_REMOVE);
- kobject_del(&p->kobj);
- p->linkname[0] = '\0';
- }
- return 0;
-}
-#endif /* CONFIG_SYSFS */
git://git.onelab.eu / sliver-openvswitch.git / blobdiff