+/*
+ * swconfig.c: Switch configuration API
+ *
+ * Copyright (C) 2008 Felix Fietkau <nbd@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * 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.
+ */
+
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/if.h>
+#include <linux/if_ether.h>
+#include <linux/capability.h>
+#include <linux/skbuff.h>
+#include <linux/switch.h>
+
+//#define DEBUG 1
+#ifdef DEBUG
+#define DPRINTF(format, ...) printk("%s: " format, __func__, ##__VA_ARGS__)
+#else
+#define DPRINTF(...) do {} while(0)
+#endif
+
+MODULE_AUTHOR("Felix Fietkau <nbd@openwrt.org>");
+MODULE_LICENSE("GPL");
+
+static int swdev_id = 0;
+static struct list_head swdevs;
+static spinlock_t swdevs_lock = SPIN_LOCK_UNLOCKED;
+struct swconfig_callback;
+
+struct swconfig_callback
+{
+ struct sk_buff *msg;
+ struct genlmsghdr *hdr;
+ struct genl_info *info;
+ int cmd;
+
+ /* callback for filling in the message data */
+ int (*fill)(struct swconfig_callback *cb, void *arg);
+
+ /* callback for closing the message before sending it */
+ int (*close)(struct swconfig_callback *cb, void *arg);
+
+ struct nlattr *nest[4];
+ int args[4];
+};
+
+/* defaults */
+
+static int
+swconfig_get_vlan_ports(struct switch_dev *dev, struct switch_attr *attr, struct switch_val *val)
+{
+ int ret;
+ if (val->port_vlan >= dev->vlans)
+ return -EINVAL;
+
+ if (!dev->get_vlan_ports)
+ return -EOPNOTSUPP;
+
+ ret = dev->get_vlan_ports(dev, val);
+ printk("SET PORTS %d\n", val->len);
+ return ret;
+}
+
+static int
+swconfig_set_vlan_ports(struct switch_dev *dev, struct switch_attr *attr, struct switch_val *val)
+{
+ int i;
+
+ if (val->port_vlan >= dev->vlans)
+ return -EINVAL;
+
+ /* validate ports */
+ if (val->len > dev->ports)
+ return -EINVAL;
+
+ for (i = 0; i < val->len; i++) {
+ if (val->value.ports[i].id >= dev->ports)
+ return -EINVAL;
+ }
+
+ if (!dev->set_vlan_ports)
+ return -EOPNOTSUPP;
+
+ printk("SET PORTS %d\n", val->len);
+ return dev->set_vlan_ports(dev, val);
+}
+
+static int
+swconfig_apply_config(struct switch_dev *dev, struct switch_attr *attr, struct switch_val *val)
+{
+ /* don't complain if not supported by the switch driver */
+ if (!dev->apply_config)
+ return 0;
+
+ return dev->apply_config(dev);
+}
+
+
+enum global_defaults {
+ GLOBAL_APPLY,
+};
+
+enum vlan_defaults {
+ VLAN_PORTS,
+};
+
+enum port_defaults {
+ PORT_LINK,
+};
+
+static struct switch_attr default_global[] = {
+ [GLOBAL_APPLY] = {
+ .type = SWITCH_TYPE_NOVAL,
+ .name = "apply",
+ .description = "Activate changes in the hardware",
+ .set = swconfig_apply_config,
+ }
+};
+
+static struct switch_attr default_port[] = {
+ [PORT_LINK] = {
+ .type = SWITCH_TYPE_INT,
+ .name = "link",
+ .description = "Current link speed",
+ }
+};
+
+static struct switch_attr default_vlan[] = {
+ [VLAN_PORTS] = {
+ .type = SWITCH_TYPE_PORTS,
+ .name = "ports",
+ .description = "VLAN port mapping",
+ .set = swconfig_set_vlan_ports,
+ .get = swconfig_get_vlan_ports,
+ },
+};
+
+
+static void swconfig_defaults_init(struct switch_dev *dev)
+{
+ dev->def_global = 0;
+ dev->def_vlan = 0;
+ dev->def_port = 0;
+
+ if (dev->get_vlan_ports || dev->set_vlan_ports)
+ set_bit(VLAN_PORTS, &dev->def_vlan);
+
+ /* always present, can be no-op */
+ set_bit(GLOBAL_APPLY, &dev->def_global);
+}
+
+
+static struct genl_family switch_fam = {
+ .id = GENL_ID_GENERATE,
+ .name = "switch",
+ .hdrsize = 0,
+ .version = 1,
+ .maxattr = SWITCH_ATTR_MAX,
+};
+
+static const struct nla_policy switch_policy[SWITCH_ATTR_MAX+1] = {
+ [SWITCH_ATTR_ID] = { .type = NLA_U32 },
+ [SWITCH_ATTR_OP_ID] = { .type = NLA_U32 },
+ [SWITCH_ATTR_OP_PORT] = { .type = NLA_U32 },
+ [SWITCH_ATTR_OP_VLAN] = { .type = NLA_U32 },
+ [SWITCH_ATTR_OP_VALUE_INT] = { .type = NLA_U32 },
+ [SWITCH_ATTR_OP_VALUE_STR] = { .type = NLA_NUL_STRING },
+ [SWITCH_ATTR_OP_VALUE_PORTS] = { .type = NLA_NESTED },
+ [SWITCH_ATTR_TYPE] = { .type = NLA_U32 },
+};
+
+static const struct nla_policy port_policy[SWITCH_PORT_ATTR_MAX+1] = {
+ [SWITCH_PORT_ID] = { .type = NLA_U32 },
+ [SWITCH_PORT_FLAG_TAGGED] = { .type = NLA_FLAG },
+};
+
+static inline void
+swconfig_lock(void)
+{
+ spin_lock(&swdevs_lock);
+}
+
+static inline void
+swconfig_unlock(void)
+{
+ spin_unlock(&swdevs_lock);
+}
+
+static struct switch_dev *
+swconfig_get_dev(struct genl_info *info)
+{
+ struct switch_dev *dev = NULL;
+ struct switch_dev *p;
+ int id;
+
+ if (!info->attrs[SWITCH_ATTR_ID])
+ goto done;
+
+ id = nla_get_u32(info->attrs[SWITCH_ATTR_ID]);
+ swconfig_lock();
+ list_for_each_entry(p, &swdevs, dev_list) {
+ if (id != p->id)
+ continue;
+
+ dev = p;
+ break;
+ }
+ if (dev)
+ spin_lock(&dev->lock);
+ else
+ DPRINTF("device %d not found\n", id);
+ swconfig_unlock();
+done:
+ return dev;
+}
+
+static inline void
+swconfig_put_dev(struct switch_dev *dev)
+{
+ spin_unlock(&dev->lock);
+}
+
+static int
+swconfig_dump_attr(struct swconfig_callback *cb, void *arg)
+{
+ struct switch_attr *op = arg;
+ struct genl_info *info = cb->info;
+ struct sk_buff *msg = cb->msg;
+ int id = cb->args[0];
+ void *hdr;
+
+ hdr = genlmsg_put(msg, info->snd_pid, info->snd_seq, &switch_fam,
+ NLM_F_MULTI, SWITCH_CMD_NEW_ATTR);
+ if (IS_ERR(hdr))
+ return -1;
+
+ NLA_PUT_U32(msg, SWITCH_ATTR_OP_ID, id);
+ NLA_PUT_U32(msg, SWITCH_ATTR_OP_TYPE, op->type);
+ NLA_PUT_STRING(msg, SWITCH_ATTR_OP_NAME, op->name);
+ if (op->description)
+ NLA_PUT_STRING(msg, SWITCH_ATTR_OP_DESCRIPTION,
+ op->description);
+
+ return genlmsg_end(msg, hdr);
+nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+ return -EMSGSIZE;
+}
+
+/* spread multipart messages across multiple message buffers */
+static int
+swconfig_send_multipart(struct swconfig_callback *cb, void *arg)
+{
+ struct genl_info *info = cb->info;
+ int restart = 0;
+ int err;
+
+ do {
+ if (!cb->msg) {
+ cb->msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+ if (cb->msg == NULL)
+ goto error;
+ }
+
+ if (!(cb->fill(cb, arg) < 0))
+ break;
+
+ /* fill failed, check if this was already the second attempt */
+ if (restart)
+ goto error;
+
+ /* try again in a new message, send the current one */
+ restart = 1;
+ if (cb->close) {
+ if (cb->close(cb, arg) < 0)
+ goto error;
+ }
+ err = genlmsg_unicast(cb->msg, info->snd_pid);
+ cb->msg = NULL;
+ if (err < 0)
+ goto error;
+
+ } while (restart);
+
+ return 0;
+
+error:
+ if (cb->msg)
+ nlmsg_free(cb->msg);
+ return -1;
+}
+
+static int
+swconfig_list_attrs(struct sk_buff *skb, struct genl_info *info)
+{
+ struct genlmsghdr *hdr = nlmsg_data(info->nlhdr);
+ const struct switch_attrlist *alist;
+ struct switch_dev *dev;
+ struct swconfig_callback cb;
+ int err = -EINVAL;
+ int i;
+
+ /* defaults */
+ struct switch_attr *def_list;
+ unsigned long *def_active;
+ int n_def;
+
+ dev = swconfig_get_dev(info);
+ if (!dev)
+ return -EINVAL;
+
+ switch(hdr->cmd) {
+ case SWITCH_CMD_LIST_GLOBAL:
+ alist = &dev->attr_global;
+ def_list = default_global;
+ def_active = &dev->def_global;
+ n_def = ARRAY_SIZE(default_global);
+ break;
+ case SWITCH_CMD_LIST_VLAN:
+ alist = &dev->attr_vlan;
+ def_list = default_vlan;
+ def_active = &dev->def_vlan;
+ n_def = ARRAY_SIZE(default_vlan);
+ break;
+ case SWITCH_CMD_LIST_PORT:
+ alist = &dev->attr_port;
+ def_list = default_port;
+ def_active = &dev->def_port;
+ n_def = ARRAY_SIZE(default_port);
+ break;
+ default:
+ WARN_ON(1);
+ goto out;
+ }
+
+ memset(&cb, 0, sizeof(cb));
+ cb.info = info;
+ cb.fill = swconfig_dump_attr;
+ for (i = 0; i < alist->n_attr; i++) {
+ if (alist->attr[i].disabled)
+ continue;
+ cb.args[0] = i;
+ err = swconfig_send_multipart(&cb, &alist->attr[i]);
+ if (err < 0)
+ goto error;
+ }
+
+ /* defaults */
+ for (i = 0; i < n_def; i++) {
+ if (!test_bit(i, def_active))
+ continue;
+ cb.args[0] = SWITCH_ATTR_DEFAULTS_OFFSET + i;
+ err = swconfig_send_multipart(&cb, &def_list[i]);
+ if (err < 0)
+ goto error;
+ }
+ swconfig_put_dev(dev);
+
+ if (!cb.msg)
+ return 0;
+
+ return genlmsg_unicast(cb.msg, info->snd_pid);
+
+error:
+ if (cb.msg)
+ nlmsg_free(cb.msg);
+out:
+ swconfig_put_dev(dev);
+ return err;
+}
+
+static struct switch_attr *
+swconfig_lookup_attr(struct switch_dev *dev, struct genl_info *info,
+ struct switch_val *val)
+{
+ struct genlmsghdr *hdr = nlmsg_data(info->nlhdr);
+ const struct switch_attrlist *alist;
+ struct switch_attr *attr = NULL;
+ int attr_id;
+
+ /* defaults */
+ struct switch_attr *def_list;
+ unsigned long *def_active;
+ int n_def;
+
+ if (!info->attrs[SWITCH_ATTR_OP_ID])
+ goto done;
+
+ switch(hdr->cmd) {
+ case SWITCH_CMD_SET_GLOBAL:
+ case SWITCH_CMD_GET_GLOBAL:
+ alist = &dev->attr_global;
+ def_list = default_global;
+ def_active = &dev->def_global;
+ n_def = ARRAY_SIZE(default_global);
+ break;
+ case SWITCH_CMD_SET_VLAN:
+ case SWITCH_CMD_GET_VLAN:
+ alist = &dev->attr_vlan;
+ def_list = default_vlan;
+ def_active = &dev->def_vlan;
+ n_def = ARRAY_SIZE(default_vlan);
+ if (!info->attrs[SWITCH_ATTR_OP_VLAN])
+ goto done;
+ val->port_vlan = nla_get_u32(info->attrs[SWITCH_ATTR_OP_VLAN]);
+ break;
+ case SWITCH_CMD_SET_PORT:
+ case SWITCH_CMD_GET_PORT:
+ alist = &dev->attr_port;
+ def_list = default_port;
+ def_active = &dev->def_port;
+ n_def = ARRAY_SIZE(default_port);
+ if (!info->attrs[SWITCH_ATTR_OP_PORT])
+ goto done;
+ val->port_vlan = nla_get_u32(info->attrs[SWITCH_ATTR_OP_PORT]);
+ break;
+ default:
+ WARN_ON(1);
+ goto done;
+ }
+
+ if (!alist)
+ goto done;
+
+ attr_id = nla_get_u32(info->attrs[SWITCH_ATTR_OP_ID]);
+ if (attr_id >= SWITCH_ATTR_DEFAULTS_OFFSET) {
+ attr_id -= SWITCH_ATTR_DEFAULTS_OFFSET;
+ if (attr_id >= n_def)
+ goto done;
+ if (!test_bit(attr_id, def_active))
+ goto done;
+ attr = &def_list[attr_id];
+ } else {
+ if (attr_id >= alist->n_attr)
+ goto done;
+ attr = &alist->attr[attr_id];
+ }
+
+ if (attr->disabled)
+ attr = NULL;
+
+done:
+ if (!attr)
+ DPRINTF("attribute lookup failed\n");
+ val->attr = attr;
+ return attr;
+}
+
+static int
+swconfig_parse_ports(struct sk_buff *msg, struct nlattr *head,
+ struct switch_val *val, int max)
+{
+ struct nlattr *nla;
+ int rem;
+
+ val->len = 0;
+ nla_for_each_nested(nla, head, rem) {
+ struct nlattr *tb[SWITCH_PORT_ATTR_MAX+1];
+ struct switch_port *port = &val->value.ports[val->len];
+
+ if (val->len >= max)
+ return -EINVAL;
+
+ if (nla_parse_nested(tb, SWITCH_PORT_ATTR_MAX, nla,
+ port_policy))
+ return -EINVAL;
+
+ if (!tb[SWITCH_PORT_ID])
+ return -EINVAL;
+
+ port->id = nla_get_u32(tb[SWITCH_PORT_ID]);
+ if (tb[SWITCH_PORT_FLAG_TAGGED])
+ port->flags |= (1 << SWITCH_PORT_FLAG_TAGGED);
+ val->len++;
+ }
+
+ return 0;
+}
+
+static int
+swconfig_set_attr(struct sk_buff *skb, struct genl_info *info)
+{
+ struct switch_attr *attr;
+ struct switch_dev *dev;
+ struct switch_val val;
+ int err = -EINVAL;
+
+ dev = swconfig_get_dev(info);
+ if (!dev)
+ return -EINVAL;
+
+ memset(&val, 0, sizeof(val));
+ attr = swconfig_lookup_attr(dev, info, &val);
+ if (!attr || !attr->set)
+ goto error;
+
+ val.attr = attr;
+ switch(attr->type) {
+ case SWITCH_TYPE_NOVAL:
+ break;
+ case SWITCH_TYPE_INT:
+ if (!info->attrs[SWITCH_ATTR_OP_VALUE_INT])
+ goto error;
+ val.value.i =
+ nla_get_u32(info->attrs[SWITCH_ATTR_OP_VALUE_INT]);
+ break;
+ case SWITCH_TYPE_STRING:
+ if (!info->attrs[SWITCH_ATTR_OP_VALUE_STR])
+ goto error;
+ val.value.s =
+ nla_data(info->attrs[SWITCH_ATTR_OP_VALUE_STR]);
+ break;
+ case SWITCH_TYPE_PORTS:
+ val.value.ports = dev->portbuf;
+ memset(dev->portbuf, 0,
+ sizeof(struct switch_port) * dev->ports);
+
+ /* TODO: implement multipart? */
+ if (info->attrs[SWITCH_ATTR_OP_VALUE_PORTS]) {
+ err = swconfig_parse_ports(skb,
+ info->attrs[SWITCH_ATTR_OP_VALUE_PORTS], &val, dev->ports);
+ if (err < 0)
+ goto error;
+ } else {
+ val.len = 0;
+ err = 0;
+ }
+ break;
+ default:
+ goto error;
+ }
+
+ err = attr->set(dev, attr, &val);
+error:
+ swconfig_put_dev(dev);
+ return err;
+}
+
+static int
+swconfig_close_portlist(struct swconfig_callback *cb, void *arg)
+{
+ if (cb->nest[0])
+ nla_nest_end(cb->msg, cb->nest[0]);
+ return 0;
+}
+
+static int
+swconfig_send_port(struct swconfig_callback *cb, void *arg)
+{
+ const struct switch_port *port = arg;
+ struct nlattr *p = NULL;
+
+ if (!cb->nest[0]) {
+ cb->nest[0] = nla_nest_start(cb->msg, cb->cmd);
+ if (!cb->nest[0])
+ return -1;
+ }
+
+ p = nla_nest_start(cb->msg, SWITCH_ATTR_PORT);
+ if (!p)
+ goto error;
+
+ NLA_PUT_U32(cb->msg, SWITCH_PORT_ID, port->id);
+ if (port->flags & (1 << SWITCH_PORT_FLAG_TAGGED))
+ NLA_PUT_FLAG(cb->msg, SWITCH_PORT_FLAG_TAGGED);
+
+ nla_nest_end(cb->msg, p);
+ return 0;
+
+nla_put_failure:
+ nla_nest_cancel(cb->msg, p);
+error:
+ nla_nest_cancel(cb->msg, cb->nest[0]);
+ return -1;
+}
+
+static int
+swconfig_send_ports(struct sk_buff **msg, struct genl_info *info, int attr,
+ const struct switch_val *val)
+{
+ struct swconfig_callback cb;
+ int err = 0;
+ int i;
+
+ if (!val->value.ports)
+ return -EINVAL;
+
+ memset(&cb, 0, sizeof(cb));
+ cb.cmd = attr;
+ cb.msg = *msg;
+ cb.info = info;
+ cb.fill = swconfig_send_port;
+ cb.close = swconfig_close_portlist;
+
+ cb.nest[0] = nla_nest_start(cb.msg, cb.cmd);
+ for (i = 0; i < val->len; i++) {
+ err = swconfig_send_multipart(&cb, &val->value.ports[i]);
+ if (err)
+ goto done;
+ }
+ err = val->len;
+ swconfig_close_portlist(&cb, NULL);
+ *msg = cb.msg;
+
+done:
+ return err;
+}
+
+static int
+swconfig_get_attr(struct sk_buff *skb, struct genl_info *info)
+{
+ struct genlmsghdr *hdr = nlmsg_data(info->nlhdr);
+ struct switch_attr *attr;
+ struct switch_dev *dev;
+ struct sk_buff *msg = NULL;
+ struct switch_val val;
+ int err = -EINVAL;
+ int cmd = hdr->cmd;
+
+ dev = swconfig_get_dev(info);
+ if (!dev)
+ return -EINVAL;
+
+ memset(&val, 0, sizeof(val));
+ attr = swconfig_lookup_attr(dev, info, &val);
+ if (!attr || !attr->get)
+ goto error_dev;
+
+ if (attr->type == SWITCH_TYPE_PORTS) {
+ val.value.ports = dev->portbuf;
+ memset(dev->portbuf, 0,
+ sizeof(struct switch_port) * dev->ports);
+ }
+
+ err = attr->get(dev, attr, &val);
+ if (err)
+ goto error;
+
+ msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+ if (!msg)
+ goto error;
+
+ hdr = genlmsg_put(msg, info->snd_pid, info->snd_seq, &switch_fam,
+ 0, cmd);
+ if (IS_ERR(hdr))
+ goto nla_put_failure;
+
+ switch(attr->type) {
+ case SWITCH_TYPE_INT:
+ NLA_PUT_U32(msg, SWITCH_ATTR_OP_VALUE_INT, val.value.i);
+ break;
+ case SWITCH_TYPE_STRING:
+ NLA_PUT_STRING(msg, SWITCH_ATTR_OP_VALUE_STR, val.value.s);
+ break;
+ case SWITCH_TYPE_PORTS:
+ err = swconfig_send_ports(&msg, info,
+ SWITCH_ATTR_OP_VALUE_PORTS, &val);
+ if (err < 0)
+ goto nla_put_failure;
+ break;
+ default:
+ DPRINTF("invalid type in attribute\n");
+ err = -EINVAL;
+ goto error;
+ }
+ err = genlmsg_end(msg, hdr);
+ if (err < 0)
+ goto nla_put_failure;
+
+ swconfig_put_dev(dev);
+ return genlmsg_unicast(msg, info->snd_pid);
+
+nla_put_failure:
+ if (msg)
+ nlmsg_free(msg);
+error_dev:
+ swconfig_put_dev(dev);
+error:
+ if (!err)
+ err = -ENOMEM;
+ return err;
+}
+
+static int
+swconfig_send_switch(struct sk_buff *msg, u32 pid, u32 seq, int flags,
+ const struct switch_dev *dev)
+{
+ void *hdr;
+
+ hdr = genlmsg_put(msg, pid, seq, &switch_fam, flags,
+ SWITCH_CMD_NEW_ATTR);
+ if (IS_ERR(hdr))
+ return -1;
+
+ NLA_PUT_U32(msg, SWITCH_ATTR_ID, dev->id);
+ NLA_PUT_STRING(msg, SWITCH_ATTR_NAME, dev->name);
+ NLA_PUT_STRING(msg, SWITCH_ATTR_DEV_NAME, dev->devname);
+ NLA_PUT_U32(msg, SWITCH_ATTR_VLANS, dev->vlans);
+ NLA_PUT_U32(msg, SWITCH_ATTR_PORTS, dev->ports);
+
+ return genlmsg_end(msg, hdr);
+nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+ return -EMSGSIZE;
+}
+
+static int swconfig_dump_switches(struct sk_buff *skb,
+ struct netlink_callback *cb)
+{
+ struct switch_dev *dev;
+ int start = cb->args[0];
+ int idx = 0;
+
+ swconfig_lock();
+ list_for_each_entry(dev, &swdevs, dev_list) {
+ if (++idx <= start)
+ continue;
+ if (swconfig_send_switch(skb, NETLINK_CB(cb->skb).pid,
+ cb->nlh->nlmsg_seq, NLM_F_MULTI,
+ dev) < 0)
+ break;
+ }
+ swconfig_unlock();
+ cb->args[0] = idx;
+
+ return skb->len;
+}
+
+static int
+swconfig_done(struct netlink_callback *cb)
+{
+ return 0;
+}
+
+static struct genl_ops swconfig_ops[] = {
+ {
+ .cmd = SWITCH_CMD_LIST_GLOBAL,
+ .doit = swconfig_list_attrs,
+ .policy = switch_policy,
+ },
+ {
+ .cmd = SWITCH_CMD_LIST_VLAN,
+ .doit = swconfig_list_attrs,
+ .policy = switch_policy,
+ },
+ {
+ .cmd = SWITCH_CMD_LIST_PORT,
+ .doit = swconfig_list_attrs,
+ .policy = switch_policy,
+ },
+ {
+ .cmd = SWITCH_CMD_GET_GLOBAL,
+ .doit = swconfig_get_attr,
+ .policy = switch_policy,
+ },
+ {
+ .cmd = SWITCH_CMD_GET_VLAN,
+ .doit = swconfig_get_attr,
+ .policy = switch_policy,
+ },
+ {
+ .cmd = SWITCH_CMD_GET_PORT,
+ .doit = swconfig_get_attr,
+ .policy = switch_policy,
+ },
+ {
+ .cmd = SWITCH_CMD_SET_GLOBAL,
+ .doit = swconfig_set_attr,
+ .policy = switch_policy,
+ },
+ {
+ .cmd = SWITCH_CMD_SET_VLAN,
+ .doit = swconfig_set_attr,
+ .policy = switch_policy,
+ },
+ {
+ .cmd = SWITCH_CMD_SET_PORT,
+ .doit = swconfig_set_attr,
+ .policy = switch_policy,
+ },
+ {
+ .cmd = SWITCH_CMD_GET_SWITCH,
+ .dumpit = swconfig_dump_switches,
+ .policy = switch_policy,
+ .done = swconfig_done,
+ }
+};
+
+int
+register_switch(struct switch_dev *dev, struct net_device *netdev)
+{
+ INIT_LIST_HEAD(&dev->dev_list);
+ if (netdev) {
+ dev->netdev = netdev;
+ if (!dev->devname)
+ dev->devname = netdev->name;
+ }
+ BUG_ON(!dev->devname);
+
+ if (dev->ports > 0) {
+ dev->portbuf = kzalloc(sizeof(struct switch_port) * dev->ports,
+ GFP_KERNEL);
+ if (!dev->portbuf)
+ return -ENOMEM;
+ }
+ dev->id = ++swdev_id;
+ swconfig_defaults_init(dev);
+ spin_lock_init(&dev->lock);
+ swconfig_lock();
+ list_add(&dev->dev_list, &swdevs);
+ swconfig_unlock();
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(register_switch);
+
+void
+unregister_switch(struct switch_dev *dev)
+{
+ kfree(dev->portbuf);
+ spin_lock(&dev->lock);
+ swconfig_lock();
+ list_del(&dev->dev_list);
+ swconfig_unlock();
+}
+EXPORT_SYMBOL_GPL(unregister_switch);
+
+
+static int __init
+swconfig_init(void)
+{
+ int i, err;
+
+ INIT_LIST_HEAD(&swdevs);
+ err = genl_register_family(&switch_fam);
+ if (err)
+ return err;
+
+ for (i = 0; i < ARRAY_SIZE(swconfig_ops); i++) {
+ err = genl_register_ops(&switch_fam, &swconfig_ops[i]);
+ if (err)
+ goto unregister;
+ }
+
+ return 0;
+
+unregister:
+ genl_unregister_family(&switch_fam);
+ return err;
+}
+
+static void __exit
+swconfig_exit(void)
+{
+ genl_unregister_family(&switch_fam);
+}
+
+module_init(swconfig_init);
+module_exit(swconfig_exit);
+
projects / openwrt / svn-archive / archive.git / commitdiff