/* -*- linux-c -*-
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/* -*- linux-c -*-
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* INET 802.1Q VLAN
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* INET 802.1Q VLAN
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* Ethernet-type device handling.
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* Ethernet-type device handling.
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*
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*
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* Authors: Ben Greear <greearb@candelatech.com>
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* Authors: Ben Greear <greearb@candelatech.com>
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* Please send support related email to: vlan@scry.wanfear.com
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* Please send support related email to: vlan@scry.wanfear.com
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* VLAN Home Page: http://www.candelatech.com/~greear/vlan.html
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* VLAN Home Page: http://www.candelatech.com/~greear/vlan.html
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*
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*
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* Fixes:
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* Fixes:
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* Fix for packet capture - Nick Eggleston <nick@dccinc.com>;
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* Fix for packet capture - Nick Eggleston <nick@dccinc.com>;
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* Add HW acceleration hooks - David S. Miller <davem@redhat.com>;
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* Add HW acceleration hooks - David S. Miller <davem@redhat.com>;
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* Correct all the locking - David S. Miller <davem@redhat.com>;
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* Correct all the locking - David S. Miller <davem@redhat.com>;
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* Use hash table for VLAN groups - David S. Miller <davem@redhat.com>
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* Use hash table for VLAN groups - David S. Miller <davem@redhat.com>
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*
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*
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* This program is free software; you can redistribute it and/or
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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* 2 of the License, or (at your option) any later version.
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*/
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*/
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|
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#include <asm/uaccess.h> /* for copy_from_user */
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#include <asm/uaccess.h> /* for copy_from_user */
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#include <linux/module.h>
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#include <linux/module.h>
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#include <linux/netdevice.h>
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#include <linux/netdevice.h>
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#include <linux/skbuff.h>
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#include <linux/skbuff.h>
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#include <net/datalink.h>
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#include <net/datalink.h>
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#include <linux/mm.h>
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#include <linux/mm.h>
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#include <linux/in.h>
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#include <linux/in.h>
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#include <linux/init.h>
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#include <linux/init.h>
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#include <net/p8022.h>
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#include <net/p8022.h>
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#include <net/arp.h>
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#include <net/arp.h>
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#include <linux/rtnetlink.h>
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#include <linux/rtnetlink.h>
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#include <linux/brlock.h>
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#include <linux/brlock.h>
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#include <linux/notifier.h>
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#include <linux/notifier.h>
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|
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#include <linux/if_vlan.h>
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#include <linux/if_vlan.h>
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#include "vlan.h"
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#include "vlan.h"
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#include "vlanproc.h"
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#include "vlanproc.h"
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|
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/* Global VLAN variables */
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/* Global VLAN variables */
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/* Our listing of VLAN group(s) */
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/* Our listing of VLAN group(s) */
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struct vlan_group *vlan_group_hash[VLAN_GRP_HASH_SIZE];
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struct vlan_group *vlan_group_hash[VLAN_GRP_HASH_SIZE];
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spinlock_t vlan_group_lock = SPIN_LOCK_UNLOCKED;
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spinlock_t vlan_group_lock = SPIN_LOCK_UNLOCKED;
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#define vlan_grp_hashfn(IDX) ((((IDX) >> VLAN_GRP_HASH_SHIFT) ^ (IDX)) & VLAN_GRP_HASH_MASK)
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#define vlan_grp_hashfn(IDX) ((((IDX) >> VLAN_GRP_HASH_SHIFT) ^ (IDX)) & VLAN_GRP_HASH_MASK)
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|
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static char vlan_fullname[] = "802.1Q VLAN Support";
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static char vlan_fullname[] = "802.1Q VLAN Support";
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static unsigned int vlan_version = 1;
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static unsigned int vlan_version = 1;
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static unsigned int vlan_release = 8;
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static unsigned int vlan_release = 8;
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static char vlan_copyright[] = "Ben Greear <greearb@candelatech.com>";
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static char vlan_copyright[] = "Ben Greear <greearb@candelatech.com>";
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static char vlan_buggyright[] = "David S. Miller <davem@redhat.com>";
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static char vlan_buggyright[] = "David S. Miller <davem@redhat.com>";
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|
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static int vlan_device_event(struct notifier_block *, unsigned long, void *);
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static int vlan_device_event(struct notifier_block *, unsigned long, void *);
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|
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struct notifier_block vlan_notifier_block = {
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struct notifier_block vlan_notifier_block = {
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notifier_call: vlan_device_event,
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notifier_call: vlan_device_event,
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};
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};
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/* These may be changed at run-time through IOCTLs */
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/* These may be changed at run-time through IOCTLs */
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/* Determines interface naming scheme. */
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/* Determines interface naming scheme. */
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unsigned short vlan_name_type = VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD;
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unsigned short vlan_name_type = VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD;
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|
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/* DO reorder the header by default */
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/* DO reorder the header by default */
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unsigned short vlan_default_dev_flags = 1;
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unsigned short vlan_default_dev_flags = 1;
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|
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static struct packet_type vlan_packet_type = {
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static struct packet_type vlan_packet_type = {
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type: __constant_htons(ETH_P_8021Q),
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type: __constant_htons(ETH_P_8021Q),
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dev: NULL,
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dev: NULL,
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func: vlan_skb_recv, /* VLAN receive method */
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func: vlan_skb_recv, /* VLAN receive method */
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data: (void *)(-1), /* Set here '(void *)1' when this code can SHARE SKBs */
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data: (void *)(-1), /* Set here '(void *)1' when this code can SHARE SKBs */
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next: NULL
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next: NULL
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};
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};
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/* End of global variables definitions. */
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/* End of global variables definitions. */
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|
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/*
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/*
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* Function vlan_proto_init (pro)
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* Function vlan_proto_init (pro)
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*
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*
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* Initialize VLAN protocol layer,
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* Initialize VLAN protocol layer,
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*
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*
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*/
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*/
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static int __init vlan_proto_init(void)
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static int __init vlan_proto_init(void)
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{
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{
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int err;
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int err;
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printk(VLAN_INF "%s v%u.%u %s\n",
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printk(VLAN_INF "%s v%u.%u %s\n",
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vlan_fullname, vlan_version, vlan_release, vlan_copyright);
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vlan_fullname, vlan_version, vlan_release, vlan_copyright);
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printk(VLAN_INF "All bugs added by %s\n",
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printk(VLAN_INF "All bugs added by %s\n",
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vlan_buggyright);
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vlan_buggyright);
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/* proc file system initialization */
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/* proc file system initialization */
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err = vlan_proc_init();
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err = vlan_proc_init();
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if (err < 0) {
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if (err < 0) {
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printk(KERN_ERR
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printk(KERN_ERR
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"%s %s: can't create entry in proc filesystem!\n",
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"%s %s: can't create entry in proc filesystem!\n",
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__FUNCTION__, VLAN_NAME);
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__FUNCTION__, VLAN_NAME);
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return 1;
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return 1;
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}
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}
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dev_add_pack(&vlan_packet_type);
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dev_add_pack(&vlan_packet_type);
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|
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/* Register us to receive netdevice events */
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/* Register us to receive netdevice events */
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register_netdevice_notifier(&vlan_notifier_block);
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register_netdevice_notifier(&vlan_notifier_block);
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|
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vlan_ioctl_hook = vlan_ioctl_handler;
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vlan_ioctl_hook = vlan_ioctl_handler;
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return 0;
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return 0;
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}
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}
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/*
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/*
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* Module 'remove' entry point.
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* Module 'remove' entry point.
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* o delete /proc/net/router directory and static entries.
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* o delete /proc/net/router directory and static entries.
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*/
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*/
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static void __exit vlan_cleanup_module(void)
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static void __exit vlan_cleanup_module(void)
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{
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{
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int i;
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int i;
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|
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/* This table must be empty if there are no module
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/* This table must be empty if there are no module
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* references left.
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* references left.
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*/
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*/
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for (i = 0; i < VLAN_GRP_HASH_SIZE; i++) {
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for (i = 0; i < VLAN_GRP_HASH_SIZE; i++) {
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if (vlan_group_hash[i] != NULL)
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if (vlan_group_hash[i] != NULL)
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BUG();
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BUG();
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}
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}
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/* Un-register us from receiving netdevice events */
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/* Un-register us from receiving netdevice events */
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unregister_netdevice_notifier(&vlan_notifier_block);
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unregister_netdevice_notifier(&vlan_notifier_block);
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|
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dev_remove_pack(&vlan_packet_type);
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dev_remove_pack(&vlan_packet_type);
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vlan_proc_cleanup();
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vlan_proc_cleanup();
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vlan_ioctl_hook = NULL;
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vlan_ioctl_hook = NULL;
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}
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}
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module_init(vlan_proto_init);
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module_init(vlan_proto_init);
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module_exit(vlan_cleanup_module);
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module_exit(vlan_cleanup_module);
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/* Must be invoked with vlan_group_lock held. */
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/* Must be invoked with vlan_group_lock held. */
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static struct vlan_group *__vlan_find_group(int real_dev_ifindex)
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static struct vlan_group *__vlan_find_group(int real_dev_ifindex)
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{
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{
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struct vlan_group *grp;
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struct vlan_group *grp;
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|
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for (grp = vlan_group_hash[vlan_grp_hashfn(real_dev_ifindex)];
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for (grp = vlan_group_hash[vlan_grp_hashfn(real_dev_ifindex)];
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grp != NULL;
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grp != NULL;
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grp = grp->next) {
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grp = grp->next) {
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if (grp->real_dev_ifindex == real_dev_ifindex)
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if (grp->real_dev_ifindex == real_dev_ifindex)
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break;
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break;
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}
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}
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return grp;
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return grp;
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}
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}
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/* Must hold vlan_group_lock. */
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/* Must hold vlan_group_lock. */
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static void __grp_hash(struct vlan_group *grp)
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static void __grp_hash(struct vlan_group *grp)
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{
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{
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struct vlan_group **head;
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struct vlan_group **head;
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|
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head = &vlan_group_hash[vlan_grp_hashfn(grp->real_dev_ifindex)];
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head = &vlan_group_hash[vlan_grp_hashfn(grp->real_dev_ifindex)];
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grp->next = *head;
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grp->next = *head;
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*head = grp;
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*head = grp;
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}
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}
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/* Must hold vlan_group_lock. */
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/* Must hold vlan_group_lock. */
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static void __grp_unhash(struct vlan_group *grp)
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static void __grp_unhash(struct vlan_group *grp)
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{
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{
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struct vlan_group *next, **pprev;
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struct vlan_group *next, **pprev;
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pprev = &vlan_group_hash[vlan_grp_hashfn(grp->real_dev_ifindex)];
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pprev = &vlan_group_hash[vlan_grp_hashfn(grp->real_dev_ifindex)];
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next = *pprev;
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next = *pprev;
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while (next != grp) {
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while (next != grp) {
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pprev = &next->next;
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pprev = &next->next;
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next = *pprev;
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next = *pprev;
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}
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}
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*pprev = grp->next;
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*pprev = grp->next;
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}
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}
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/* Find the protocol handler. Assumes VID < VLAN_VID_MASK.
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/* Find the protocol handler. Assumes VID < VLAN_VID_MASK.
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*
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*
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* Must be invoked with vlan_group_lock held.
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* Must be invoked with vlan_group_lock held.
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*/
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*/
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struct net_device *__find_vlan_dev(struct net_device *real_dev,
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struct net_device *__find_vlan_dev(struct net_device *real_dev,
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unsigned short VID)
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unsigned short VID)
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{
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{
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struct vlan_group *grp = __vlan_find_group(real_dev->ifindex);
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struct vlan_group *grp = __vlan_find_group(real_dev->ifindex);
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if (grp)
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if (grp)
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return grp->vlan_devices[VID];
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return grp->vlan_devices[VID];
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|
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return NULL;
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return NULL;
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}
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}
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/* This returns 0 if everything went fine.
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/* This returns 0 if everything went fine.
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* It will return 1 if the group was killed as a result.
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* It will return 1 if the group was killed as a result.
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* A negative return indicates failure.
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* A negative return indicates failure.
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*
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*
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* The RTNL lock must be held.
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* The RTNL lock must be held.
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*/
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*/
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static int unregister_vlan_dev(struct net_device *real_dev,
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static int unregister_vlan_dev(struct net_device *real_dev,
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unsigned short vlan_id)
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unsigned short vlan_id)
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{
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{
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struct net_device *dev = NULL;
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struct net_device *dev = NULL;
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int real_dev_ifindex = real_dev->ifindex;
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int real_dev_ifindex = real_dev->ifindex;
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struct vlan_group *grp;
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struct vlan_group *grp;
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int i, ret;
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int i, ret;
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|
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#ifdef VLAN_DEBUG
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#ifdef VLAN_DEBUG
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printk(VLAN_DBG "%s: VID: %i\n", __FUNCTION__, vlan_id);
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printk(VLAN_DBG "%s: VID: %i\n", __FUNCTION__, vlan_id);
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#endif
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#endif
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|
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/* sanity check */
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/* sanity check */
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if (vlan_id >= VLAN_VID_MASK)
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if (vlan_id >= VLAN_VID_MASK)
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return -EINVAL;
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return -EINVAL;
|
|
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spin_lock_bh(&vlan_group_lock);
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spin_lock_bh(&vlan_group_lock);
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grp = __vlan_find_group(real_dev_ifindex);
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grp = __vlan_find_group(real_dev_ifindex);
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spin_unlock_bh(&vlan_group_lock);
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spin_unlock_bh(&vlan_group_lock);
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|
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ret = 0;
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ret = 0;
|
|
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if (grp) {
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if (grp) {
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dev = grp->vlan_devices[vlan_id];
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dev = grp->vlan_devices[vlan_id];
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if (dev) {
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if (dev) {
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/* Remove proc entry */
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/* Remove proc entry */
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vlan_proc_rem_dev(dev);
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vlan_proc_rem_dev(dev);
|
|
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/* Take it out of our own structures, but be sure to
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/* Take it out of our own structures, but be sure to
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* interlock with HW accelerating devices or SW vlan
|
* interlock with HW accelerating devices or SW vlan
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* input packet processing.
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* input packet processing.
|
*/
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*/
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if (real_dev->features &
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if (real_dev->features &
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(NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_FILTER)) {
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(NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_FILTER)) {
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real_dev->vlan_rx_kill_vid(real_dev, vlan_id);
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real_dev->vlan_rx_kill_vid(real_dev, vlan_id);
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}
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}
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|
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br_write_lock(BR_NETPROTO_LOCK);
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br_write_lock(BR_NETPROTO_LOCK);
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grp->vlan_devices[vlan_id] = NULL;
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grp->vlan_devices[vlan_id] = NULL;
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br_write_unlock(BR_NETPROTO_LOCK);
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br_write_unlock(BR_NETPROTO_LOCK);
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|
|
|
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/* Caller unregisters (and if necessary, puts)
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/* Caller unregisters (and if necessary, puts)
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* VLAN device, but we get rid of the reference to
|
* VLAN device, but we get rid of the reference to
|
* real_dev here.
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* real_dev here.
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*/
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*/
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dev_put(real_dev);
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dev_put(real_dev);
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|
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/* If the group is now empty, kill off the
|
/* If the group is now empty, kill off the
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* group.
|
* group.
|
*/
|
*/
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for (i = 0; i < VLAN_VID_MASK; i++)
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for (i = 0; i < VLAN_VID_MASK; i++)
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if (grp->vlan_devices[i])
|
if (grp->vlan_devices[i])
|
break;
|
break;
|
|
|
if (i == VLAN_VID_MASK) {
|
if (i == VLAN_VID_MASK) {
|
if (real_dev->features & NETIF_F_HW_VLAN_RX)
|
if (real_dev->features & NETIF_F_HW_VLAN_RX)
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real_dev->vlan_rx_register(real_dev, NULL);
|
real_dev->vlan_rx_register(real_dev, NULL);
|
|
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spin_lock_bh(&vlan_group_lock);
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spin_lock_bh(&vlan_group_lock);
|
__grp_unhash(grp);
|
__grp_unhash(grp);
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spin_unlock_bh(&vlan_group_lock);
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spin_unlock_bh(&vlan_group_lock);
|
|
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/* Free the group, after we have removed it
|
/* Free the group, after we have removed it
|
* from the hash.
|
* from the hash.
|
*/
|
*/
|
kfree(grp);
|
kfree(grp);
|
grp = NULL;
|
grp = NULL;
|
|
|
ret = 1;
|
ret = 1;
|
}
|
}
|
|
|
MOD_DEC_USE_COUNT;
|
MOD_DEC_USE_COUNT;
|
}
|
}
|
}
|
}
|
|
|
return ret;
|
return ret;
|
}
|
}
|
|
|
static int unregister_vlan_device(const char *vlan_IF_name)
|
static int unregister_vlan_device(const char *vlan_IF_name)
|
{
|
{
|
struct net_device *dev = NULL;
|
struct net_device *dev = NULL;
|
int ret;
|
int ret;
|
|
|
|
|
dev = dev_get_by_name(vlan_IF_name);
|
dev = dev_get_by_name(vlan_IF_name);
|
ret = -EINVAL;
|
ret = -EINVAL;
|
if (dev) {
|
if (dev) {
|
if (dev->priv_flags & IFF_802_1Q_VLAN) {
|
if (dev->priv_flags & IFF_802_1Q_VLAN) {
|
rtnl_lock();
|
rtnl_lock();
|
|
|
ret = unregister_vlan_dev(VLAN_DEV_INFO(dev)->real_dev,
|
ret = unregister_vlan_dev(VLAN_DEV_INFO(dev)->real_dev,
|
VLAN_DEV_INFO(dev)->vlan_id);
|
VLAN_DEV_INFO(dev)->vlan_id);
|
|
|
dev_put(dev);
|
dev_put(dev);
|
unregister_netdevice(dev);
|
unregister_netdevice(dev);
|
|
|
rtnl_unlock();
|
rtnl_unlock();
|
|
|
if (ret == 1)
|
if (ret == 1)
|
ret = 0;
|
ret = 0;
|
} else {
|
} else {
|
printk(VLAN_ERR
|
printk(VLAN_ERR
|
"%s: ERROR: Tried to remove a non-vlan device "
|
"%s: ERROR: Tried to remove a non-vlan device "
|
"with VLAN code, name: %s priv_flags: %hX\n",
|
"with VLAN code, name: %s priv_flags: %hX\n",
|
__FUNCTION__, dev->name, dev->priv_flags);
|
__FUNCTION__, dev->name, dev->priv_flags);
|
dev_put(dev);
|
dev_put(dev);
|
ret = -EPERM;
|
ret = -EPERM;
|
}
|
}
|
} else {
|
} else {
|
#ifdef VLAN_DEBUG
|
#ifdef VLAN_DEBUG
|
printk(VLAN_DBG "%s: WARNING: Could not find dev.\n", __FUNCTION__);
|
printk(VLAN_DBG "%s: WARNING: Could not find dev.\n", __FUNCTION__);
|
#endif
|
#endif
|
ret = -EINVAL;
|
ret = -EINVAL;
|
}
|
}
|
|
|
return ret;
|
return ret;
|
}
|
}
|
|
|
/* Attach a VLAN device to a mac address (ie Ethernet Card).
|
/* Attach a VLAN device to a mac address (ie Ethernet Card).
|
* Returns the device that was created, or NULL if there was
|
* Returns the device that was created, or NULL if there was
|
* an error of some kind.
|
* an error of some kind.
|
*/
|
*/
|
static struct net_device *register_vlan_device(const char *eth_IF_name,
|
static struct net_device *register_vlan_device(const char *eth_IF_name,
|
unsigned short VLAN_ID)
|
unsigned short VLAN_ID)
|
{
|
{
|
struct vlan_group *grp;
|
struct vlan_group *grp;
|
struct net_device *new_dev;
|
struct net_device *new_dev;
|
struct net_device *real_dev; /* the ethernet device */
|
struct net_device *real_dev; /* the ethernet device */
|
int malloc_size = 0;
|
int malloc_size = 0;
|
int r;
|
int r;
|
|
|
#ifdef VLAN_DEBUG
|
#ifdef VLAN_DEBUG
|
printk(VLAN_DBG "%s: if_name -:%s:- vid: %i\n",
|
printk(VLAN_DBG "%s: if_name -:%s:- vid: %i\n",
|
__FUNCTION__, eth_IF_name, VLAN_ID);
|
__FUNCTION__, eth_IF_name, VLAN_ID);
|
#endif
|
#endif
|
|
|
if (VLAN_ID >= VLAN_VID_MASK)
|
if (VLAN_ID >= VLAN_VID_MASK)
|
goto out_ret_null;
|
goto out_ret_null;
|
|
|
/* find the device relating to eth_IF_name. */
|
/* find the device relating to eth_IF_name. */
|
real_dev = dev_get_by_name(eth_IF_name);
|
real_dev = dev_get_by_name(eth_IF_name);
|
if (!real_dev)
|
if (!real_dev)
|
goto out_ret_null;
|
goto out_ret_null;
|
|
|
if (real_dev->features & NETIF_F_VLAN_CHALLENGED) {
|
if (real_dev->features & NETIF_F_VLAN_CHALLENGED) {
|
printk(VLAN_DBG "%s: VLANs not supported on %s.\n",
|
printk(VLAN_DBG "%s: VLANs not supported on %s.\n",
|
__FUNCTION__, real_dev->name);
|
__FUNCTION__, real_dev->name);
|
goto out_put_dev;
|
goto out_put_dev;
|
}
|
}
|
|
|
if ((real_dev->features & NETIF_F_HW_VLAN_RX) &&
|
if ((real_dev->features & NETIF_F_HW_VLAN_RX) &&
|
(real_dev->vlan_rx_register == NULL ||
|
(real_dev->vlan_rx_register == NULL ||
|
real_dev->vlan_rx_kill_vid == NULL)) {
|
real_dev->vlan_rx_kill_vid == NULL)) {
|
printk(VLAN_DBG "%s: Device %s has buggy VLAN hw accel.\n",
|
printk(VLAN_DBG "%s: Device %s has buggy VLAN hw accel.\n",
|
__FUNCTION__, real_dev->name);
|
__FUNCTION__, real_dev->name);
|
goto out_put_dev;
|
goto out_put_dev;
|
}
|
}
|
|
|
if ((real_dev->features & NETIF_F_HW_VLAN_FILTER) &&
|
if ((real_dev->features & NETIF_F_HW_VLAN_FILTER) &&
|
(real_dev->vlan_rx_add_vid == NULL ||
|
(real_dev->vlan_rx_add_vid == NULL ||
|
real_dev->vlan_rx_kill_vid == NULL)) {
|
real_dev->vlan_rx_kill_vid == NULL)) {
|
printk(VLAN_DBG "%s: Device %s has buggy VLAN hw accel.\n",
|
printk(VLAN_DBG "%s: Device %s has buggy VLAN hw accel.\n",
|
__FUNCTION__, real_dev->name);
|
__FUNCTION__, real_dev->name);
|
goto out_put_dev;
|
goto out_put_dev;
|
}
|
}
|
|
|
/* From this point on, all the data structures must remain
|
/* From this point on, all the data structures must remain
|
* consistent.
|
* consistent.
|
*/
|
*/
|
rtnl_lock();
|
rtnl_lock();
|
|
|
/* The real device must be up and operating in order to
|
/* The real device must be up and operating in order to
|
* assosciate a VLAN device with it.
|
* assosciate a VLAN device with it.
|
*/
|
*/
|
if (!(real_dev->flags & IFF_UP))
|
if (!(real_dev->flags & IFF_UP))
|
goto out_unlock;
|
goto out_unlock;
|
|
|
spin_lock_bh(&vlan_group_lock);
|
spin_lock_bh(&vlan_group_lock);
|
r = (__find_vlan_dev(real_dev, VLAN_ID) != NULL);
|
r = (__find_vlan_dev(real_dev, VLAN_ID) != NULL);
|
spin_unlock_bh(&vlan_group_lock);
|
spin_unlock_bh(&vlan_group_lock);
|
|
|
if (r) {
|
if (r) {
|
/* was already registered. */
|
/* was already registered. */
|
printk(VLAN_DBG "%s: ALREADY had VLAN registered\n", __FUNCTION__);
|
printk(VLAN_DBG "%s: ALREADY had VLAN registered\n", __FUNCTION__);
|
goto out_unlock;
|
goto out_unlock;
|
}
|
}
|
|
|
malloc_size = (sizeof(struct net_device));
|
malloc_size = (sizeof(struct net_device));
|
new_dev = (struct net_device *) kmalloc(malloc_size, GFP_KERNEL);
|
new_dev = (struct net_device *) kmalloc(malloc_size, GFP_KERNEL);
|
VLAN_MEM_DBG("net_device malloc, addr: %p size: %i\n",
|
VLAN_MEM_DBG("net_device malloc, addr: %p size: %i\n",
|
new_dev, malloc_size);
|
new_dev, malloc_size);
|
|
|
if (new_dev == NULL)
|
if (new_dev == NULL)
|
goto out_unlock;
|
goto out_unlock;
|
|
|
memset(new_dev, 0, malloc_size);
|
memset(new_dev, 0, malloc_size);
|
|
|
/* Set us up to have no queue, as the underlying Hardware device
|
/* Set us up to have no queue, as the underlying Hardware device
|
* can do all the queueing we could want.
|
* can do all the queueing we could want.
|
*/
|
*/
|
new_dev->tx_queue_len = 0;
|
new_dev->tx_queue_len = 0;
|
|
|
/* Gotta set up the fields for the device. */
|
/* Gotta set up the fields for the device. */
|
#ifdef VLAN_DEBUG
|
#ifdef VLAN_DEBUG
|
printk(VLAN_DBG "About to allocate name, vlan_name_type: %i\n",
|
printk(VLAN_DBG "About to allocate name, vlan_name_type: %i\n",
|
vlan_name_type);
|
vlan_name_type);
|
#endif
|
#endif
|
switch (vlan_name_type) {
|
switch (vlan_name_type) {
|
case VLAN_NAME_TYPE_RAW_PLUS_VID:
|
case VLAN_NAME_TYPE_RAW_PLUS_VID:
|
/* name will look like: eth1.0005 */
|
/* name will look like: eth1.0005 */
|
sprintf(new_dev->name, "%s.%.4i", real_dev->name, VLAN_ID);
|
sprintf(new_dev->name, "%s.%.4i", real_dev->name, VLAN_ID);
|
break;
|
break;
|
case VLAN_NAME_TYPE_PLUS_VID_NO_PAD:
|
case VLAN_NAME_TYPE_PLUS_VID_NO_PAD:
|
/* Put our vlan.VID in the name.
|
/* Put our vlan.VID in the name.
|
* Name will look like: vlan5
|
* Name will look like: vlan5
|
*/
|
*/
|
sprintf(new_dev->name, "vlan%i", VLAN_ID);
|
sprintf(new_dev->name, "vlan%i", VLAN_ID);
|
break;
|
break;
|
case VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD:
|
case VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD:
|
/* Put our vlan.VID in the name.
|
/* Put our vlan.VID in the name.
|
* Name will look like: eth0.5
|
* Name will look like: eth0.5
|
*/
|
*/
|
sprintf(new_dev->name, "%s.%i", real_dev->name, VLAN_ID);
|
sprintf(new_dev->name, "%s.%i", real_dev->name, VLAN_ID);
|
break;
|
break;
|
case VLAN_NAME_TYPE_PLUS_VID:
|
case VLAN_NAME_TYPE_PLUS_VID:
|
/* Put our vlan.VID in the name.
|
/* Put our vlan.VID in the name.
|
* Name will look like: vlan0005
|
* Name will look like: vlan0005
|
*/
|
*/
|
default:
|
default:
|
sprintf(new_dev->name, "vlan%.4i", VLAN_ID);
|
sprintf(new_dev->name, "vlan%.4i", VLAN_ID);
|
};
|
};
|
|
|
#ifdef VLAN_DEBUG
|
#ifdef VLAN_DEBUG
|
printk(VLAN_DBG "Allocated new name -:%s:-\n", new_dev->name);
|
printk(VLAN_DBG "Allocated new name -:%s:-\n", new_dev->name);
|
#endif
|
#endif
|
/* set up method calls */
|
/* set up method calls */
|
new_dev->init = vlan_dev_init;
|
new_dev->init = vlan_dev_init;
|
new_dev->destructor = vlan_dev_destruct;
|
new_dev->destructor = vlan_dev_destruct;
|
new_dev->features |= NETIF_F_DYNALLOC ;
|
new_dev->features |= NETIF_F_DYNALLOC ;
|
|
|
/* new_dev->ifindex = 0; it will be set when added to
|
/* new_dev->ifindex = 0; it will be set when added to
|
* the global list.
|
* the global list.
|
* iflink is set as well.
|
* iflink is set as well.
|
*/
|
*/
|
new_dev->get_stats = vlan_dev_get_stats;
|
new_dev->get_stats = vlan_dev_get_stats;
|
|
|
/* IFF_BROADCAST|IFF_MULTICAST; ??? */
|
/* IFF_BROADCAST|IFF_MULTICAST; ??? */
|
new_dev->flags = real_dev->flags;
|
new_dev->flags = real_dev->flags;
|
new_dev->flags &= ~IFF_UP;
|
new_dev->flags &= ~IFF_UP;
|
|
|
/* Make this thing known as a VLAN device */
|
/* Make this thing known as a VLAN device */
|
new_dev->priv_flags |= IFF_802_1Q_VLAN;
|
new_dev->priv_flags |= IFF_802_1Q_VLAN;
|
|
|
/* need 4 bytes for extra VLAN header info,
|
/* need 4 bytes for extra VLAN header info,
|
* hope the underlying device can handle it.
|
* hope the underlying device can handle it.
|
*/
|
*/
|
new_dev->mtu = real_dev->mtu;
|
new_dev->mtu = real_dev->mtu;
|
new_dev->change_mtu = vlan_dev_change_mtu;
|
new_dev->change_mtu = vlan_dev_change_mtu;
|
|
|
/* TODO: maybe just assign it to be ETHERNET? */
|
/* TODO: maybe just assign it to be ETHERNET? */
|
new_dev->type = real_dev->type;
|
new_dev->type = real_dev->type;
|
|
|
new_dev->hard_header_len = real_dev->hard_header_len;
|
new_dev->hard_header_len = real_dev->hard_header_len;
|
if (!(real_dev->features & NETIF_F_HW_VLAN_TX)) {
|
if (!(real_dev->features & NETIF_F_HW_VLAN_TX)) {
|
/* Regular ethernet + 4 bytes (18 total). */
|
/* Regular ethernet + 4 bytes (18 total). */
|
new_dev->hard_header_len += VLAN_HLEN;
|
new_dev->hard_header_len += VLAN_HLEN;
|
}
|
}
|
|
|
new_dev->priv = kmalloc(sizeof(struct vlan_dev_info),
|
new_dev->priv = kmalloc(sizeof(struct vlan_dev_info),
|
GFP_KERNEL);
|
GFP_KERNEL);
|
VLAN_MEM_DBG("new_dev->priv malloc, addr: %p size: %i\n",
|
VLAN_MEM_DBG("new_dev->priv malloc, addr: %p size: %i\n",
|
new_dev->priv,
|
new_dev->priv,
|
sizeof(struct vlan_dev_info));
|
sizeof(struct vlan_dev_info));
|
|
|
if (new_dev->priv == NULL)
|
if (new_dev->priv == NULL)
|
goto out_free_newdev;
|
goto out_free_newdev;
|
|
|
memset(new_dev->priv, 0, sizeof(struct vlan_dev_info));
|
memset(new_dev->priv, 0, sizeof(struct vlan_dev_info));
|
|
|
memcpy(new_dev->broadcast, real_dev->broadcast, real_dev->addr_len);
|
memcpy(new_dev->broadcast, real_dev->broadcast, real_dev->addr_len);
|
memcpy(new_dev->dev_addr, real_dev->dev_addr, real_dev->addr_len);
|
memcpy(new_dev->dev_addr, real_dev->dev_addr, real_dev->addr_len);
|
new_dev->addr_len = real_dev->addr_len;
|
new_dev->addr_len = real_dev->addr_len;
|
|
|
new_dev->open = vlan_dev_open;
|
new_dev->open = vlan_dev_open;
|
new_dev->stop = vlan_dev_stop;
|
new_dev->stop = vlan_dev_stop;
|
|
|
if (real_dev->features & NETIF_F_HW_VLAN_TX) {
|
if (real_dev->features & NETIF_F_HW_VLAN_TX) {
|
new_dev->hard_header = real_dev->hard_header;
|
new_dev->hard_header = real_dev->hard_header;
|
new_dev->hard_start_xmit = vlan_dev_hwaccel_hard_start_xmit;
|
new_dev->hard_start_xmit = vlan_dev_hwaccel_hard_start_xmit;
|
new_dev->rebuild_header = real_dev->rebuild_header;
|
new_dev->rebuild_header = real_dev->rebuild_header;
|
} else {
|
} else {
|
new_dev->hard_header = vlan_dev_hard_header;
|
new_dev->hard_header = vlan_dev_hard_header;
|
new_dev->hard_start_xmit = vlan_dev_hard_start_xmit;
|
new_dev->hard_start_xmit = vlan_dev_hard_start_xmit;
|
new_dev->rebuild_header = vlan_dev_rebuild_header;
|
new_dev->rebuild_header = vlan_dev_rebuild_header;
|
}
|
}
|
new_dev->hard_header_parse = real_dev->hard_header_parse;
|
new_dev->hard_header_parse = real_dev->hard_header_parse;
|
new_dev->set_mac_address = vlan_dev_set_mac_address;
|
new_dev->set_mac_address = vlan_dev_set_mac_address;
|
new_dev->set_multicast_list = vlan_dev_set_multicast_list;
|
new_dev->set_multicast_list = vlan_dev_set_multicast_list;
|
|
|
VLAN_DEV_INFO(new_dev)->vlan_id = VLAN_ID; /* 1 through VLAN_VID_MASK */
|
VLAN_DEV_INFO(new_dev)->vlan_id = VLAN_ID; /* 1 through VLAN_VID_MASK */
|
VLAN_DEV_INFO(new_dev)->real_dev = real_dev;
|
VLAN_DEV_INFO(new_dev)->real_dev = real_dev;
|
VLAN_DEV_INFO(new_dev)->dent = NULL;
|
VLAN_DEV_INFO(new_dev)->dent = NULL;
|
VLAN_DEV_INFO(new_dev)->flags = vlan_default_dev_flags;
|
VLAN_DEV_INFO(new_dev)->flags = vlan_default_dev_flags;
|
|
|
#ifdef VLAN_DEBUG
|
#ifdef VLAN_DEBUG
|
printk(VLAN_DBG "About to go find the group for idx: %i\n",
|
printk(VLAN_DBG "About to go find the group for idx: %i\n",
|
real_dev->ifindex);
|
real_dev->ifindex);
|
#endif
|
#endif
|
|
|
/* So, got the sucker initialized, now lets place
|
/* So, got the sucker initialized, now lets place
|
* it into our local structure.
|
* it into our local structure.
|
*/
|
*/
|
spin_lock_bh(&vlan_group_lock);
|
spin_lock_bh(&vlan_group_lock);
|
grp = __vlan_find_group(real_dev->ifindex);
|
grp = __vlan_find_group(real_dev->ifindex);
|
spin_unlock_bh(&vlan_group_lock);
|
spin_unlock_bh(&vlan_group_lock);
|
|
|
/* Note, we are running under the RTNL semaphore
|
/* Note, we are running under the RTNL semaphore
|
* so it cannot "appear" on us.
|
* so it cannot "appear" on us.
|
*/
|
*/
|
if (!grp) { /* need to add a new group */
|
if (!grp) { /* need to add a new group */
|
grp = kmalloc(sizeof(struct vlan_group), GFP_KERNEL);
|
grp = kmalloc(sizeof(struct vlan_group), GFP_KERNEL);
|
if (!grp)
|
if (!grp)
|
goto out_free_newdev_priv;
|
goto out_free_newdev_priv;
|
|
|
/* printk(KERN_ALERT "VLAN REGISTER: Allocated new group.\n"); */
|
/* printk(KERN_ALERT "VLAN REGISTER: Allocated new group.\n"); */
|
memset(grp, 0, sizeof(struct vlan_group));
|
memset(grp, 0, sizeof(struct vlan_group));
|
grp->real_dev_ifindex = real_dev->ifindex;
|
grp->real_dev_ifindex = real_dev->ifindex;
|
|
|
spin_lock_bh(&vlan_group_lock);
|
spin_lock_bh(&vlan_group_lock);
|
__grp_hash(grp);
|
__grp_hash(grp);
|
spin_unlock_bh(&vlan_group_lock);
|
spin_unlock_bh(&vlan_group_lock);
|
|
|
if (real_dev->features & NETIF_F_HW_VLAN_RX)
|
if (real_dev->features & NETIF_F_HW_VLAN_RX)
|
real_dev->vlan_rx_register(real_dev, grp);
|
real_dev->vlan_rx_register(real_dev, grp);
|
}
|
}
|
|
|
grp->vlan_devices[VLAN_ID] = new_dev;
|
grp->vlan_devices[VLAN_ID] = new_dev;
|
|
|
if (vlan_proc_add_dev(new_dev)<0)/* create it's proc entry */
|
if (vlan_proc_add_dev(new_dev)<0)/* create it's proc entry */
|
printk(KERN_WARNING "VLAN: failed to add proc entry for %s\n",
|
printk(KERN_WARNING "VLAN: failed to add proc entry for %s\n",
|
new_dev->name);
|
new_dev->name);
|
|
|
if (real_dev->features & NETIF_F_HW_VLAN_FILTER)
|
if (real_dev->features & NETIF_F_HW_VLAN_FILTER)
|
real_dev->vlan_rx_add_vid(real_dev, VLAN_ID);
|
real_dev->vlan_rx_add_vid(real_dev, VLAN_ID);
|
|
|
register_netdevice(new_dev);
|
register_netdevice(new_dev);
|
|
|
rtnl_unlock();
|
rtnl_unlock();
|
|
|
/* NOTE: We have a reference to the real device,
|
/* NOTE: We have a reference to the real device,
|
* so hold on to the reference.
|
* so hold on to the reference.
|
*/
|
*/
|
MOD_INC_USE_COUNT; /* Add was a success!! */
|
MOD_INC_USE_COUNT; /* Add was a success!! */
|
#ifdef VLAN_DEBUG
|
#ifdef VLAN_DEBUG
|
printk(VLAN_DBG "Allocated new device successfully, returning.\n");
|
printk(VLAN_DBG "Allocated new device successfully, returning.\n");
|
#endif
|
#endif
|
return new_dev;
|
return new_dev;
|
|
|
out_free_newdev_priv:
|
out_free_newdev_priv:
|
kfree(new_dev->priv);
|
kfree(new_dev->priv);
|
|
|
out_free_newdev:
|
out_free_newdev:
|
kfree(new_dev);
|
kfree(new_dev);
|
|
|
out_unlock:
|
out_unlock:
|
rtnl_unlock();
|
rtnl_unlock();
|
|
|
out_put_dev:
|
out_put_dev:
|
dev_put(real_dev);
|
dev_put(real_dev);
|
|
|
out_ret_null:
|
out_ret_null:
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
static int vlan_device_event(struct notifier_block *unused, unsigned long event, void *ptr)
|
static int vlan_device_event(struct notifier_block *unused, unsigned long event, void *ptr)
|
{
|
{
|
struct net_device *dev = (struct net_device *)(ptr);
|
struct net_device *dev = (struct net_device *)(ptr);
|
struct vlan_group *grp = NULL;
|
struct vlan_group *grp = NULL;
|
int i, flgs;
|
int i, flgs;
|
struct net_device *vlandev = NULL;
|
struct net_device *vlandev = NULL;
|
|
|
spin_lock_bh(&vlan_group_lock);
|
spin_lock_bh(&vlan_group_lock);
|
grp = __vlan_find_group(dev->ifindex);
|
grp = __vlan_find_group(dev->ifindex);
|
spin_unlock_bh(&vlan_group_lock);
|
spin_unlock_bh(&vlan_group_lock);
|
|
|
if (!grp)
|
if (!grp)
|
goto out;
|
goto out;
|
|
|
/* It is OK that we do not hold the group lock right now,
|
/* It is OK that we do not hold the group lock right now,
|
* as we run under the RTNL lock.
|
* as we run under the RTNL lock.
|
*/
|
*/
|
|
|
switch (event) {
|
switch (event) {
|
case NETDEV_CHANGEADDR:
|
case NETDEV_CHANGEADDR:
|
case NETDEV_GOING_DOWN:
|
case NETDEV_GOING_DOWN:
|
/* Ignore for now */
|
/* Ignore for now */
|
break;
|
break;
|
|
|
case NETDEV_DOWN:
|
case NETDEV_DOWN:
|
/* Put all VLANs for this dev in the down state too. */
|
/* Put all VLANs for this dev in the down state too. */
|
for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
|
for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
|
vlandev = grp->vlan_devices[i];
|
vlandev = grp->vlan_devices[i];
|
if (!vlandev)
|
if (!vlandev)
|
continue;
|
continue;
|
|
|
flgs = vlandev->flags;
|
flgs = vlandev->flags;
|
if (!(flgs & IFF_UP))
|
if (!(flgs & IFF_UP))
|
continue;
|
continue;
|
|
|
dev_change_flags(vlandev, flgs & ~IFF_UP);
|
dev_change_flags(vlandev, flgs & ~IFF_UP);
|
}
|
}
|
break;
|
break;
|
|
|
case NETDEV_UP:
|
case NETDEV_UP:
|
/* Put all VLANs for this dev in the up state too. */
|
/* Put all VLANs for this dev in the up state too. */
|
for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
|
for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
|
vlandev = grp->vlan_devices[i];
|
vlandev = grp->vlan_devices[i];
|
if (!vlandev)
|
if (!vlandev)
|
continue;
|
continue;
|
|
|
flgs = vlandev->flags;
|
flgs = vlandev->flags;
|
if (flgs & IFF_UP)
|
if (flgs & IFF_UP)
|
continue;
|
continue;
|
|
|
dev_change_flags(vlandev, flgs | IFF_UP);
|
dev_change_flags(vlandev, flgs | IFF_UP);
|
}
|
}
|
break;
|
break;
|
|
|
case NETDEV_UNREGISTER:
|
case NETDEV_UNREGISTER:
|
/* Delete all VLANs for this dev. */
|
/* Delete all VLANs for this dev. */
|
for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
|
for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
|
int ret;
|
int ret;
|
|
|
vlandev = grp->vlan_devices[i];
|
vlandev = grp->vlan_devices[i];
|
if (!vlandev)
|
if (!vlandev)
|
continue;
|
continue;
|
|
|
ret = unregister_vlan_dev(dev,
|
ret = unregister_vlan_dev(dev,
|
VLAN_DEV_INFO(vlandev)->vlan_id);
|
VLAN_DEV_INFO(vlandev)->vlan_id);
|
|
|
dev_put(vlandev);
|
dev_put(vlandev);
|
unregister_netdevice(vlandev);
|
unregister_netdevice(vlandev);
|
|
|
/* Group was destroyed? */
|
/* Group was destroyed? */
|
if (ret == 1)
|
if (ret == 1)
|
break;
|
break;
|
}
|
}
|
break;
|
break;
|
};
|
};
|
|
|
out:
|
out:
|
return NOTIFY_DONE;
|
return NOTIFY_DONE;
|
}
|
}
|
|
|
/*
|
/*
|
* VLAN IOCTL handler.
|
* VLAN IOCTL handler.
|
* o execute requested action or pass command to the device driver
|
* o execute requested action or pass command to the device driver
|
* arg is really a void* to a vlan_ioctl_args structure.
|
* arg is really a void* to a vlan_ioctl_args structure.
|
*/
|
*/
|
int vlan_ioctl_handler(unsigned long arg)
|
int vlan_ioctl_handler(unsigned long arg)
|
{
|
{
|
int err = 0;
|
int err = 0;
|
unsigned short vid = 0;
|
unsigned short vid = 0;
|
struct vlan_ioctl_args args;
|
struct vlan_ioctl_args args;
|
|
|
if (copy_from_user(&args, (void*)arg,
|
if (copy_from_user(&args, (void*)arg,
|
sizeof(struct vlan_ioctl_args)))
|
sizeof(struct vlan_ioctl_args)))
|
return -EFAULT;
|
return -EFAULT;
|
|
|
/* Null terminate this sucker, just in case. */
|
/* Null terminate this sucker, just in case. */
|
args.device1[23] = 0;
|
args.device1[23] = 0;
|
args.u.device2[23] = 0;
|
args.u.device2[23] = 0;
|
|
|
#ifdef VLAN_DEBUG
|
#ifdef VLAN_DEBUG
|
printk(VLAN_DBG "%s: args.cmd: %x\n", __FUNCTION__, args.cmd);
|
printk(VLAN_DBG "%s: args.cmd: %x\n", __FUNCTION__, args.cmd);
|
#endif
|
#endif
|
|
|
switch (args.cmd) {
|
switch (args.cmd) {
|
case SET_VLAN_INGRESS_PRIORITY_CMD:
|
case SET_VLAN_INGRESS_PRIORITY_CMD:
|
if (!capable(CAP_NET_ADMIN))
|
if (!capable(CAP_NET_ADMIN))
|
return -EPERM;
|
return -EPERM;
|
|
|
err = vlan_dev_set_ingress_priority(args.device1,
|
err = vlan_dev_set_ingress_priority(args.device1,
|
args.u.skb_priority,
|
args.u.skb_priority,
|
args.vlan_qos);
|
args.vlan_qos);
|
break;
|
break;
|
|
|
case SET_VLAN_EGRESS_PRIORITY_CMD:
|
case SET_VLAN_EGRESS_PRIORITY_CMD:
|
if (!capable(CAP_NET_ADMIN))
|
if (!capable(CAP_NET_ADMIN))
|
return -EPERM;
|
return -EPERM;
|
err = vlan_dev_set_egress_priority(args.device1,
|
err = vlan_dev_set_egress_priority(args.device1,
|
args.u.skb_priority,
|
args.u.skb_priority,
|
args.vlan_qos);
|
args.vlan_qos);
|
break;
|
break;
|
|
|
case SET_VLAN_FLAG_CMD:
|
case SET_VLAN_FLAG_CMD:
|
if (!capable(CAP_NET_ADMIN))
|
if (!capable(CAP_NET_ADMIN))
|
return -EPERM;
|
return -EPERM;
|
err = vlan_dev_set_vlan_flag(args.device1,
|
err = vlan_dev_set_vlan_flag(args.device1,
|
args.u.flag,
|
args.u.flag,
|
args.vlan_qos);
|
args.vlan_qos);
|
break;
|
break;
|
|
|
case SET_VLAN_NAME_TYPE_CMD:
|
case SET_VLAN_NAME_TYPE_CMD:
|
if (!capable(CAP_NET_ADMIN))
|
if (!capable(CAP_NET_ADMIN))
|
return -EPERM;
|
return -EPERM;
|
if ((args.u.name_type >= 0) &&
|
if ((args.u.name_type >= 0) &&
|
(args.u.name_type < VLAN_NAME_TYPE_HIGHEST)) {
|
(args.u.name_type < VLAN_NAME_TYPE_HIGHEST)) {
|
vlan_name_type = args.u.name_type;
|
vlan_name_type = args.u.name_type;
|
err = 0;
|
err = 0;
|
} else {
|
} else {
|
err = -EINVAL;
|
err = -EINVAL;
|
}
|
}
|
break;
|
break;
|
|
|
case ADD_VLAN_CMD:
|
case ADD_VLAN_CMD:
|
if (!capable(CAP_NET_ADMIN))
|
if (!capable(CAP_NET_ADMIN))
|
return -EPERM;
|
return -EPERM;
|
/* we have been given the name of the Ethernet Device we want to
|
/* we have been given the name of the Ethernet Device we want to
|
* talk to: args.dev1 We also have the
|
* talk to: args.dev1 We also have the
|
* VLAN ID: args.u.VID
|
* VLAN ID: args.u.VID
|
*/
|
*/
|
if (register_vlan_device(args.device1, args.u.VID)) {
|
if (register_vlan_device(args.device1, args.u.VID)) {
|
err = 0;
|
err = 0;
|
} else {
|
} else {
|
err = -EINVAL;
|
err = -EINVAL;
|
}
|
}
|
break;
|
break;
|
|
|
case DEL_VLAN_CMD:
|
case DEL_VLAN_CMD:
|
if (!capable(CAP_NET_ADMIN))
|
if (!capable(CAP_NET_ADMIN))
|
return -EPERM;
|
return -EPERM;
|
/* Here, the args.dev1 is the actual VLAN we want
|
/* Here, the args.dev1 is the actual VLAN we want
|
* to get rid of.
|
* to get rid of.
|
*/
|
*/
|
err = unregister_vlan_device(args.device1);
|
err = unregister_vlan_device(args.device1);
|
break;
|
break;
|
|
|
case GET_VLAN_INGRESS_PRIORITY_CMD:
|
case GET_VLAN_INGRESS_PRIORITY_CMD:
|
/* TODO: Implement
|
/* TODO: Implement
|
err = vlan_dev_get_ingress_priority(args);
|
err = vlan_dev_get_ingress_priority(args);
|
if (copy_to_user((void*)arg, &args,
|
if (copy_to_user((void*)arg, &args,
|
sizeof(struct vlan_ioctl_args))) {
|
sizeof(struct vlan_ioctl_args))) {
|
err = -EFAULT;
|
err = -EFAULT;
|
}
|
}
|
*/
|
*/
|
err = -EINVAL;
|
err = -EINVAL;
|
break;
|
break;
|
|
|
case GET_VLAN_EGRESS_PRIORITY_CMD:
|
case GET_VLAN_EGRESS_PRIORITY_CMD:
|
/* TODO: Implement
|
/* TODO: Implement
|
err = vlan_dev_get_egress_priority(args.device1, &(args.args);
|
err = vlan_dev_get_egress_priority(args.device1, &(args.args);
|
if (copy_to_user((void*)arg, &args,
|
if (copy_to_user((void*)arg, &args,
|
sizeof(struct vlan_ioctl_args))) {
|
sizeof(struct vlan_ioctl_args))) {
|
err = -EFAULT;
|
err = -EFAULT;
|
}
|
}
|
*/
|
*/
|
err = -EINVAL;
|
err = -EINVAL;
|
break;
|
break;
|
|
|
case GET_VLAN_REALDEV_NAME_CMD:
|
case GET_VLAN_REALDEV_NAME_CMD:
|
err = vlan_dev_get_realdev_name(args.device1, args.u.device2);
|
err = vlan_dev_get_realdev_name(args.device1, args.u.device2);
|
if (copy_to_user((void*)arg, &args,
|
if (copy_to_user((void*)arg, &args,
|
sizeof(struct vlan_ioctl_args))) {
|
sizeof(struct vlan_ioctl_args))) {
|
err = -EFAULT;
|
err = -EFAULT;
|
}
|
}
|
break;
|
break;
|
|
|
case GET_VLAN_VID_CMD:
|
case GET_VLAN_VID_CMD:
|
err = vlan_dev_get_vid(args.device1, &vid);
|
err = vlan_dev_get_vid(args.device1, &vid);
|
args.u.VID = vid;
|
args.u.VID = vid;
|
if (copy_to_user((void*)arg, &args,
|
if (copy_to_user((void*)arg, &args,
|
sizeof(struct vlan_ioctl_args))) {
|
sizeof(struct vlan_ioctl_args))) {
|
err = -EFAULT;
|
err = -EFAULT;
|
}
|
}
|
break;
|
break;
|
|
|
default:
|
default:
|
/* pass on to underlying device instead?? */
|
/* pass on to underlying device instead?? */
|
printk(VLAN_DBG "%s: Unknown VLAN CMD: %x \n",
|
printk(VLAN_DBG "%s: Unknown VLAN CMD: %x \n",
|
__FUNCTION__, args.cmd);
|
__FUNCTION__, args.cmd);
|
return -EINVAL;
|
return -EINVAL;
|
};
|
};
|
|
|
return err;
|
return err;
|
}
|
}
|
|
|
MODULE_LICENSE("GPL");
|
MODULE_LICENSE("GPL");
|
|
|
