[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/os/linux/linux-3.4.x/net/wanrouter/Kconfig b/ap/os/linux/linux-3.4.x/net/wanrouter/Kconfig
new file mode 100644
index 0000000..61ceae0
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/net/wanrouter/Kconfig
@@ -0,0 +1,27 @@
+#
+# Configuration for WAN router
+#
+
+config WAN_ROUTER
+ tristate "WAN router"
+ depends on EXPERIMENTAL
+ ---help---
+ Wide Area Networks (WANs), such as X.25, frame relay and leased
+ lines, are used to interconnect Local Area Networks (LANs) over vast
+ distances with data transfer rates significantly higher than those
+ achievable with commonly used asynchronous modem connections.
+ Usually, a quite expensive external device called a `WAN router' is
+ needed to connect to a WAN.
+
+ As an alternative, WAN routing can be built into the Linux kernel.
+ With relatively inexpensive WAN interface cards available on the
+ market, a perfectly usable router can be built for less than half
+ the price of an external router. If you have one of those cards and
+ wish to use your Linux box as a WAN router, say Y here and also to
+ the WAN driver for your card, below. You will then need the
+ wan-tools package which is available from <ftp://ftp.sangoma.com/>.
+
+ To compile WAN routing support as a module, choose M here: the
+ module will be called wanrouter.
+
+ If unsure, say N.
diff --git a/ap/os/linux/linux-3.4.x/net/wanrouter/Makefile b/ap/os/linux/linux-3.4.x/net/wanrouter/Makefile
new file mode 100644
index 0000000..4da14bc
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/net/wanrouter/Makefile
@@ -0,0 +1,7 @@
+#
+# Makefile for the Linux WAN router layer.
+#
+
+obj-$(CONFIG_WAN_ROUTER) += wanrouter.o
+
+wanrouter-y := wanproc.o wanmain.o
diff --git a/ap/os/linux/linux-3.4.x/net/wanrouter/patchlevel b/ap/os/linux/linux-3.4.x/net/wanrouter/patchlevel
new file mode 100644
index 0000000..c043eea
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/net/wanrouter/patchlevel
@@ -0,0 +1 @@
+2.2.1
diff --git a/ap/os/linux/linux-3.4.x/net/wanrouter/wanmain.c b/ap/os/linux/linux-3.4.x/net/wanrouter/wanmain.c
new file mode 100644
index 0000000..2ab7850
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/net/wanrouter/wanmain.c
@@ -0,0 +1,782 @@
+/*****************************************************************************
+* wanmain.c WAN Multiprotocol Router Module. Main code.
+*
+* This module is completely hardware-independent and provides
+* the following common services for the WAN Link Drivers:
+* o WAN device management (registering, unregistering)
+* o Network interface management
+* o Physical connection management (dial-up, incoming calls)
+* o Logical connection management (switched virtual circuits)
+* o Protocol encapsulation/decapsulation
+*
+* Author: Gideon Hack
+*
+* Copyright: (c) 1995-1999 Sangoma Technologies Inc.
+*
+* 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.
+* ============================================================================
+* Nov 24, 2000 Nenad Corbic Updated for 2.4.X kernels
+* Nov 07, 2000 Nenad Corbic Fixed the Mulit-Port PPP for kernels 2.2.16 and
+* greater.
+* Aug 2, 2000 Nenad Corbic Block the Multi-Port PPP from running on
+* kernels 2.2.16 or greater. The SyncPPP
+* has changed.
+* Jul 13, 2000 Nenad Corbic Added SyncPPP support
+* Added extra debugging in device_setup().
+* Oct 01, 1999 Gideon Hack Update for s514 PCI card
+* Dec 27, 1996 Gene Kozin Initial version (based on Sangoma's WANPIPE)
+* Jan 16, 1997 Gene Kozin router_devlist made public
+* Jan 31, 1997 Alan Cox Hacked it about a bit for 2.1
+* Jun 27, 1997 Alan Cox realigned with vendor code
+* Oct 15, 1997 Farhan Thawar changed wan_encapsulate to add a pad byte of 0
+* Apr 20, 1998 Alan Cox Fixed 2.1 symbols
+* May 17, 1998 K. Baranowski Fixed SNAP encapsulation in wan_encapsulate
+* Dec 15, 1998 Arnaldo Melo support for firmwares of up to 128000 bytes
+* check wandev->setup return value
+* Dec 22, 1998 Arnaldo Melo vmalloc/vfree used in device_setup to allocate
+* kernel memory and copy configuration data to
+* kernel space (for big firmwares)
+* Jun 02, 1999 Gideon Hack Updates for Linux 2.0.X and 2.2.X kernels.
+*****************************************************************************/
+
+#include <linux/stddef.h> /* offsetof(), etc. */
+#include <linux/capability.h>
+#include <linux/errno.h> /* return codes */
+#include <linux/kernel.h>
+#include <linux/module.h> /* support for loadable modules */
+#include <linux/slab.h> /* kmalloc(), kfree() */
+#include <linux/mutex.h>
+#include <linux/mm.h>
+#include <linux/string.h> /* inline mem*, str* functions */
+
+#include <asm/byteorder.h> /* htons(), etc. */
+#include <linux/wanrouter.h> /* WAN router API definitions */
+
+#include <linux/vmalloc.h> /* vmalloc, vfree */
+#include <asm/uaccess.h> /* copy_to/from_user */
+#include <linux/init.h> /* __initfunc et al. */
+
+#define DEV_TO_SLAVE(dev) (*((struct net_device **)netdev_priv(dev)))
+
+/*
+ * Function Prototypes
+ */
+
+/*
+ * WAN device IOCTL handlers
+ */
+
+static DEFINE_MUTEX(wanrouter_mutex);
+static int wanrouter_device_setup(struct wan_device *wandev,
+ wandev_conf_t __user *u_conf);
+static int wanrouter_device_stat(struct wan_device *wandev,
+ wandev_stat_t __user *u_stat);
+static int wanrouter_device_shutdown(struct wan_device *wandev);
+static int wanrouter_device_new_if(struct wan_device *wandev,
+ wanif_conf_t __user *u_conf);
+static int wanrouter_device_del_if(struct wan_device *wandev,
+ char __user *u_name);
+
+/*
+ * Miscellaneous
+ */
+
+static struct wan_device *wanrouter_find_device(char *name);
+static int wanrouter_delete_interface(struct wan_device *wandev, char *name);
+static void lock_adapter_irq(spinlock_t *lock, unsigned long *smp_flags)
+ __acquires(lock);
+static void unlock_adapter_irq(spinlock_t *lock, unsigned long *smp_flags)
+ __releases(lock);
+
+
+
+/*
+ * Global Data
+ */
+
+static char wanrouter_fullname[] = "Sangoma WANPIPE Router";
+static char wanrouter_copyright[] = "(c) 1995-2000 Sangoma Technologies Inc.";
+static char wanrouter_modname[] = ROUTER_NAME; /* short module name */
+struct wan_device* wanrouter_router_devlist; /* list of registered devices */
+
+/*
+ * Organize Unique Identifiers for encapsulation/decapsulation
+ */
+
+#if 0
+static unsigned char wanrouter_oui_ether[] = { 0x00, 0x00, 0x00 };
+static unsigned char wanrouter_oui_802_2[] = { 0x00, 0x80, 0xC2 };
+#endif
+
+static int __init wanrouter_init(void)
+{
+ int err;
+
+ printk(KERN_INFO "%s v%u.%u %s\n",
+ wanrouter_fullname, ROUTER_VERSION, ROUTER_RELEASE,
+ wanrouter_copyright);
+
+ err = wanrouter_proc_init();
+ if (err)
+ printk(KERN_INFO "%s: can't create entry in proc filesystem!\n",
+ wanrouter_modname);
+
+ return err;
+}
+
+static void __exit wanrouter_cleanup (void)
+{
+ wanrouter_proc_cleanup();
+}
+
+/*
+ * This is just plain dumb. We should move the bugger to drivers/net/wan,
+ * slap it first in directory and make it module_init(). The only reason
+ * for subsys_initcall() here is that net goes after drivers (why, BTW?)
+ */
+subsys_initcall(wanrouter_init);
+module_exit(wanrouter_cleanup);
+
+/*
+ * Kernel APIs
+ */
+
+/*
+ * Register WAN device.
+ * o verify device credentials
+ * o create an entry for the device in the /proc/net/router directory
+ * o initialize internally maintained fields of the wan_device structure
+ * o link device data space to a singly-linked list
+ * o if it's the first device, then start kernel 'thread'
+ * o increment module use count
+ *
+ * Return:
+ * 0 Ok
+ * < 0 error.
+ *
+ * Context: process
+ */
+
+
+int register_wan_device(struct wan_device *wandev)
+{
+ int err, namelen;
+
+ if ((wandev == NULL) || (wandev->magic != ROUTER_MAGIC) ||
+ (wandev->name == NULL))
+ return -EINVAL;
+
+ namelen = strlen(wandev->name);
+ if (!namelen || (namelen > WAN_DRVNAME_SZ))
+ return -EINVAL;
+
+ if (wanrouter_find_device(wandev->name))
+ return -EEXIST;
+
+#ifdef WANDEBUG
+ printk(KERN_INFO "%s: registering WAN device %s\n",
+ wanrouter_modname, wandev->name);
+#endif
+
+ /*
+ * Register /proc directory entry
+ */
+ err = wanrouter_proc_add(wandev);
+ if (err) {
+ printk(KERN_INFO
+ "%s: can't create /proc/net/router/%s entry!\n",
+ wanrouter_modname, wandev->name);
+ return err;
+ }
+
+ /*
+ * Initialize fields of the wan_device structure maintained by the
+ * router and update local data.
+ */
+
+ wandev->ndev = 0;
+ wandev->dev = NULL;
+ wandev->next = wanrouter_router_devlist;
+ wanrouter_router_devlist = wandev;
+ return 0;
+}
+
+/*
+ * Unregister WAN device.
+ * o shut down device
+ * o unlink device data space from the linked list
+ * o delete device entry in the /proc/net/router directory
+ * o decrement module use count
+ *
+ * Return: 0 Ok
+ * <0 error.
+ * Context: process
+ */
+
+
+int unregister_wan_device(char *name)
+{
+ struct wan_device *wandev, *prev;
+
+ if (name == NULL)
+ return -EINVAL;
+
+ for (wandev = wanrouter_router_devlist, prev = NULL;
+ wandev && strcmp(wandev->name, name);
+ prev = wandev, wandev = wandev->next)
+ ;
+ if (wandev == NULL)
+ return -ENODEV;
+
+#ifdef WANDEBUG
+ printk(KERN_INFO "%s: unregistering WAN device %s\n",
+ wanrouter_modname, name);
+#endif
+
+ if (wandev->state != WAN_UNCONFIGURED)
+ wanrouter_device_shutdown(wandev);
+
+ if (prev)
+ prev->next = wandev->next;
+ else
+ wanrouter_router_devlist = wandev->next;
+
+ wanrouter_proc_delete(wandev);
+ return 0;
+}
+
+#if 0
+
+/*
+ * Encapsulate packet.
+ *
+ * Return: encapsulation header size
+ * < 0 - unsupported Ethertype
+ *
+ * Notes:
+ * 1. This function may be called on interrupt context.
+ */
+
+
+int wanrouter_encapsulate(struct sk_buff *skb, struct net_device *dev,
+ unsigned short type)
+{
+ int hdr_len = 0;
+
+ switch (type) {
+ case ETH_P_IP: /* IP datagram encapsulation */
+ hdr_len += 1;
+ skb_push(skb, 1);
+ skb->data[0] = NLPID_IP;
+ break;
+
+ case ETH_P_IPX: /* SNAP encapsulation */
+ case ETH_P_ARP:
+ hdr_len += 7;
+ skb_push(skb, 7);
+ skb->data[0] = 0;
+ skb->data[1] = NLPID_SNAP;
+ skb_copy_to_linear_data_offset(skb, 2, wanrouter_oui_ether,
+ sizeof(wanrouter_oui_ether));
+ *((unsigned short*)&skb->data[5]) = htons(type);
+ break;
+
+ default: /* Unknown packet type */
+ printk(KERN_INFO
+ "%s: unsupported Ethertype 0x%04X on interface %s!\n",
+ wanrouter_modname, type, dev->name);
+ hdr_len = -EINVAL;
+ }
+ return hdr_len;
+}
+
+
+/*
+ * Decapsulate packet.
+ *
+ * Return: Ethertype (in network order)
+ * 0 unknown encapsulation
+ *
+ * Notes:
+ * 1. This function may be called on interrupt context.
+ */
+
+
+__be16 wanrouter_type_trans(struct sk_buff *skb, struct net_device *dev)
+{
+ int cnt = skb->data[0] ? 0 : 1; /* there may be a pad present */
+ __be16 ethertype;
+
+ switch (skb->data[cnt]) {
+ case NLPID_IP: /* IP datagramm */
+ ethertype = htons(ETH_P_IP);
+ cnt += 1;
+ break;
+
+ case NLPID_SNAP: /* SNAP encapsulation */
+ if (memcmp(&skb->data[cnt + 1], wanrouter_oui_ether,
+ sizeof(wanrouter_oui_ether))){
+ printk(KERN_INFO
+ "%s: unsupported SNAP OUI %02X-%02X-%02X "
+ "on interface %s!\n", wanrouter_modname,
+ skb->data[cnt+1], skb->data[cnt+2],
+ skb->data[cnt+3], dev->name);
+ return 0;
+ }
+ ethertype = *((__be16*)&skb->data[cnt+4]);
+ cnt += 6;
+ break;
+
+ /* add other protocols, e.g. CLNP, ESIS, ISIS, if needed */
+
+ default:
+ printk(KERN_INFO
+ "%s: unsupported NLPID 0x%02X on interface %s!\n",
+ wanrouter_modname, skb->data[cnt], dev->name);
+ return 0;
+ }
+ skb->protocol = ethertype;
+ skb->pkt_type = PACKET_HOST; /* Physically point to point */
+ skb_pull(skb, cnt);
+ skb_reset_mac_header(skb);
+ return ethertype;
+}
+
+#endif /* 0 */
+
+/*
+ * WAN device IOCTL.
+ * o find WAN device associated with this node
+ * o execute requested action or pass command to the device driver
+ */
+
+long wanrouter_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+ struct inode *inode = file->f_path.dentry->d_inode;
+ int err = 0;
+ struct proc_dir_entry *dent;
+ struct wan_device *wandev;
+ void __user *data = (void __user *)arg;
+
+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
+
+ if ((cmd >> 8) != ROUTER_IOCTL)
+ return -EINVAL;
+
+ dent = PDE(inode);
+ if ((dent == NULL) || (dent->data == NULL))
+ return -EINVAL;
+
+ wandev = dent->data;
+ if (wandev->magic != ROUTER_MAGIC)
+ return -EINVAL;
+
+ mutex_lock(&wanrouter_mutex);
+ switch (cmd) {
+ case ROUTER_SETUP:
+ err = wanrouter_device_setup(wandev, data);
+ break;
+
+ case ROUTER_DOWN:
+ err = wanrouter_device_shutdown(wandev);
+ break;
+
+ case ROUTER_STAT:
+ err = wanrouter_device_stat(wandev, data);
+ break;
+
+ case ROUTER_IFNEW:
+ err = wanrouter_device_new_if(wandev, data);
+ break;
+
+ case ROUTER_IFDEL:
+ err = wanrouter_device_del_if(wandev, data);
+ break;
+
+ case ROUTER_IFSTAT:
+ break;
+
+ default:
+ if ((cmd >= ROUTER_USER) &&
+ (cmd <= ROUTER_USER_MAX) &&
+ wandev->ioctl)
+ err = wandev->ioctl(wandev, cmd, arg);
+ else err = -EINVAL;
+ }
+ mutex_unlock(&wanrouter_mutex);
+ return err;
+}
+
+/*
+ * WAN Driver IOCTL Handlers
+ */
+
+/*
+ * Setup WAN link device.
+ * o verify user address space
+ * o allocate kernel memory and copy configuration data to kernel space
+ * o if configuration data includes extension, copy it to kernel space too
+ * o call driver's setup() entry point
+ */
+
+static int wanrouter_device_setup(struct wan_device *wandev,
+ wandev_conf_t __user *u_conf)
+{
+ void *data = NULL;
+ wandev_conf_t *conf;
+ int err = -EINVAL;
+
+ if (wandev->setup == NULL) { /* Nothing to do ? */
+ printk(KERN_INFO "%s: ERROR, No setup script: wandev->setup()\n",
+ wandev->name);
+ return 0;
+ }
+
+ conf = kmalloc(sizeof(wandev_conf_t), GFP_KERNEL);
+ if (conf == NULL){
+ printk(KERN_INFO "%s: ERROR, Failed to allocate kernel memory !\n",
+ wandev->name);
+ return -ENOBUFS;
+ }
+
+ if (copy_from_user(conf, u_conf, sizeof(wandev_conf_t))) {
+ printk(KERN_INFO "%s: Failed to copy user config data to kernel space!\n",
+ wandev->name);
+ kfree(conf);
+ return -EFAULT;
+ }
+
+ if (conf->magic != ROUTER_MAGIC) {
+ kfree(conf);
+ printk(KERN_INFO "%s: ERROR, Invalid MAGIC Number\n",
+ wandev->name);
+ return -EINVAL;
+ }
+
+ if (conf->data_size && conf->data) {
+ if (conf->data_size > 128000) {
+ printk(KERN_INFO
+ "%s: ERROR, Invalid firmware data size %i !\n",
+ wandev->name, conf->data_size);
+ kfree(conf);
+ return -EINVAL;
+ }
+
+ data = vmalloc(conf->data_size);
+ if (!data) {
+ printk(KERN_INFO
+ "%s: ERROR, Failed allocate kernel memory !\n",
+ wandev->name);
+ kfree(conf);
+ return -ENOBUFS;
+ }
+ if (!copy_from_user(data, conf->data, conf->data_size)) {
+ conf->data = data;
+ err = wandev->setup(wandev, conf);
+ } else {
+ printk(KERN_INFO
+ "%s: ERROR, Failed to copy from user data !\n",
+ wandev->name);
+ err = -EFAULT;
+ }
+ vfree(data);
+ } else {
+ printk(KERN_INFO
+ "%s: ERROR, No firmware found ! Firmware size = %i !\n",
+ wandev->name, conf->data_size);
+ }
+
+ kfree(conf);
+ return err;
+}
+
+/*
+ * Shutdown WAN device.
+ * o delete all not opened logical channels for this device
+ * o call driver's shutdown() entry point
+ */
+
+static int wanrouter_device_shutdown(struct wan_device *wandev)
+{
+ struct net_device *dev;
+ int err=0;
+
+ if (wandev->state == WAN_UNCONFIGURED)
+ return 0;
+
+ printk(KERN_INFO "\n%s: Shutting Down!\n",wandev->name);
+
+ for (dev = wandev->dev; dev;) {
+ err = wanrouter_delete_interface(wandev, dev->name);
+ if (err)
+ return err;
+ /* The above function deallocates the current dev
+ * structure. Therefore, we cannot use netdev_priv(dev)
+ * as the next element: wandev->dev points to the
+ * next element */
+ dev = wandev->dev;
+ }
+
+ if (wandev->ndev)
+ return -EBUSY; /* there are opened interfaces */
+
+ if (wandev->shutdown)
+ err=wandev->shutdown(wandev);
+
+ return err;
+}
+
+/*
+ * Get WAN device status & statistics.
+ */
+
+static int wanrouter_device_stat(struct wan_device *wandev,
+ wandev_stat_t __user *u_stat)
+{
+ wandev_stat_t stat;
+
+ memset(&stat, 0, sizeof(stat));
+
+ /* Ask device driver to update device statistics */
+ if ((wandev->state != WAN_UNCONFIGURED) && wandev->update)
+ wandev->update(wandev);
+
+ /* Fill out structure */
+ stat.ndev = wandev->ndev;
+ stat.state = wandev->state;
+
+ if (copy_to_user(u_stat, &stat, sizeof(stat)))
+ return -EFAULT;
+
+ return 0;
+}
+
+/*
+ * Create new WAN interface.
+ * o verify user address space
+ * o copy configuration data to kernel address space
+ * o allocate network interface data space
+ * o call driver's new_if() entry point
+ * o make sure there is no interface name conflict
+ * o register network interface
+ */
+
+static int wanrouter_device_new_if(struct wan_device *wandev,
+ wanif_conf_t __user *u_conf)
+{
+ wanif_conf_t *cnf;
+ struct net_device *dev = NULL;
+ int err;
+
+ if ((wandev->state == WAN_UNCONFIGURED) || (wandev->new_if == NULL))
+ return -ENODEV;
+
+ cnf = kmalloc(sizeof(wanif_conf_t), GFP_KERNEL);
+ if (!cnf)
+ return -ENOBUFS;
+
+ err = -EFAULT;
+ if (copy_from_user(cnf, u_conf, sizeof(wanif_conf_t)))
+ goto out;
+
+ err = -EINVAL;
+ if (cnf->magic != ROUTER_MAGIC)
+ goto out;
+
+ if (cnf->config_id == WANCONFIG_MPPP) {
+ printk(KERN_INFO "%s: Wanpipe Mulit-Port PPP support has not been compiled in!\n",
+ wandev->name);
+ err = -EPROTONOSUPPORT;
+ goto out;
+ } else {
+ err = wandev->new_if(wandev, dev, cnf);
+ }
+
+ if (!err) {
+ /* Register network interface. This will invoke init()
+ * function supplied by the driver. If device registered
+ * successfully, add it to the interface list.
+ */
+
+#ifdef WANDEBUG
+ printk(KERN_INFO "%s: registering interface %s...\n",
+ wanrouter_modname, dev->name);
+#endif
+
+ err = register_netdev(dev);
+ if (!err) {
+ struct net_device *slave = NULL;
+ unsigned long smp_flags=0;
+
+ lock_adapter_irq(&wandev->lock, &smp_flags);
+
+ if (wandev->dev == NULL) {
+ wandev->dev = dev;
+ } else {
+ for (slave=wandev->dev;
+ DEV_TO_SLAVE(slave);
+ slave = DEV_TO_SLAVE(slave))
+ DEV_TO_SLAVE(slave) = dev;
+ }
+ ++wandev->ndev;
+
+ unlock_adapter_irq(&wandev->lock, &smp_flags);
+ err = 0; /* done !!! */
+ goto out;
+ }
+ if (wandev->del_if)
+ wandev->del_if(wandev, dev);
+ free_netdev(dev);
+ }
+
+out:
+ kfree(cnf);
+ return err;
+}
+
+
+/*
+ * Delete WAN logical channel.
+ * o verify user address space
+ * o copy configuration data to kernel address space
+ */
+
+static int wanrouter_device_del_if(struct wan_device *wandev, char __user *u_name)
+{
+ char name[WAN_IFNAME_SZ + 1];
+ int err = 0;
+
+ if (wandev->state == WAN_UNCONFIGURED)
+ return -ENODEV;
+
+ memset(name, 0, sizeof(name));
+
+ if (copy_from_user(name, u_name, WAN_IFNAME_SZ))
+ return -EFAULT;
+
+ err = wanrouter_delete_interface(wandev, name);
+ if (err)
+ return err;
+
+ /* If last interface being deleted, shutdown card
+ * This helps with administration at leaf nodes
+ * (You can tell if the person at the other end of the phone
+ * has an interface configured) and avoids DoS vulnerabilities
+ * in binary driver files - this fixes a problem with the current
+ * Sangoma driver going into strange states when all the network
+ * interfaces are deleted and the link irrecoverably disconnected.
+ */
+
+ if (!wandev->ndev && wandev->shutdown)
+ err = wandev->shutdown(wandev);
+
+ return err;
+}
+
+/*
+ * Miscellaneous Functions
+ */
+
+/*
+ * Find WAN device by name.
+ * Return pointer to the WAN device data space or NULL if device not found.
+ */
+
+static struct wan_device *wanrouter_find_device(char *name)
+{
+ struct wan_device *wandev;
+
+ for (wandev = wanrouter_router_devlist;
+ wandev && strcmp(wandev->name, name);
+ wandev = wandev->next);
+ return wandev;
+}
+
+/*
+ * Delete WAN logical channel identified by its name.
+ * o find logical channel by its name
+ * o call driver's del_if() entry point
+ * o unregister network interface
+ * o unlink channel data space from linked list of channels
+ * o release channel data space
+ *
+ * Return: 0 success
+ * -ENODEV channel not found.
+ * -EBUSY interface is open
+ *
+ * Note: If (force != 0), then device will be destroyed even if interface
+ * associated with it is open. It's caller's responsibility to make
+ * sure that opened interfaces are not removed!
+ */
+
+static int wanrouter_delete_interface(struct wan_device *wandev, char *name)
+{
+ struct net_device *dev = NULL, *prev = NULL;
+ unsigned long smp_flags=0;
+
+ lock_adapter_irq(&wandev->lock, &smp_flags);
+ dev = wandev->dev;
+ prev = NULL;
+ while (dev && strcmp(name, dev->name)) {
+ struct net_device **slave = netdev_priv(dev);
+ prev = dev;
+ dev = *slave;
+ }
+ unlock_adapter_irq(&wandev->lock, &smp_flags);
+
+ if (dev == NULL)
+ return -ENODEV; /* interface not found */
+
+ if (netif_running(dev))
+ return -EBUSY; /* interface in use */
+
+ if (wandev->del_if)
+ wandev->del_if(wandev, dev);
+
+ lock_adapter_irq(&wandev->lock, &smp_flags);
+ if (prev) {
+ struct net_device **prev_slave = netdev_priv(prev);
+ struct net_device **slave = netdev_priv(dev);
+
+ *prev_slave = *slave;
+ } else {
+ struct net_device **slave = netdev_priv(dev);
+ wandev->dev = *slave;
+ }
+ --wandev->ndev;
+ unlock_adapter_irq(&wandev->lock, &smp_flags);
+
+ printk(KERN_INFO "%s: unregistering '%s'\n", wandev->name, dev->name);
+
+ unregister_netdev(dev);
+
+ free_netdev(dev);
+
+ return 0;
+}
+
+static void lock_adapter_irq(spinlock_t *lock, unsigned long *smp_flags)
+ __acquires(lock)
+{
+ spin_lock_irqsave(lock, *smp_flags);
+}
+
+
+static void unlock_adapter_irq(spinlock_t *lock, unsigned long *smp_flags)
+ __releases(lock)
+{
+ spin_unlock_irqrestore(lock, *smp_flags);
+}
+
+EXPORT_SYMBOL(register_wan_device);
+EXPORT_SYMBOL(unregister_wan_device);
+
+MODULE_LICENSE("GPL");
+
+/*
+ * End
+ */
diff --git a/ap/os/linux/linux-3.4.x/net/wanrouter/wanproc.c b/ap/os/linux/linux-3.4.x/net/wanrouter/wanproc.c
new file mode 100644
index 0000000..c43612e
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/net/wanrouter/wanproc.c
@@ -0,0 +1,380 @@
+/*****************************************************************************
+* wanproc.c WAN Router Module. /proc filesystem interface.
+*
+* This module is completely hardware-independent and provides
+* access to the router using Linux /proc filesystem.
+*
+* Author: Gideon Hack
+*
+* Copyright: (c) 1995-1999 Sangoma Technologies Inc.
+*
+* 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.
+* ============================================================================
+* Jun 02, 1999 Gideon Hack Updates for Linux 2.2.X kernels.
+* Jun 29, 1997 Alan Cox Merged with 1.0.3 vendor code
+* Jan 29, 1997 Gene Kozin v1.0.1. Implemented /proc read routines
+* Jan 30, 1997 Alan Cox Hacked around for 2.1
+* Dec 13, 1996 Gene Kozin Initial version (based on Sangoma's WANPIPE)
+*****************************************************************************/
+
+#include <linux/init.h> /* __initfunc et al. */
+#include <linux/stddef.h> /* offsetof(), etc. */
+#include <linux/errno.h> /* return codes */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/wanrouter.h> /* WAN router API definitions */
+#include <linux/seq_file.h>
+#include <linux/mutex.h>
+
+#include <net/net_namespace.h>
+#include <asm/io.h>
+
+#define PROC_STATS_FORMAT "%30s: %12lu\n"
+
+/****** Defines and Macros **************************************************/
+
+#define PROT_DECODE(prot) ((prot == WANCONFIG_FR) ? " FR" :\
+ (prot == WANCONFIG_X25) ? " X25" : \
+ (prot == WANCONFIG_PPP) ? " PPP" : \
+ (prot == WANCONFIG_CHDLC) ? " CHDLC": \
+ (prot == WANCONFIG_MPPP) ? " MPPP" : \
+ " Unknown" )
+
+/****** Function Prototypes *************************************************/
+
+#ifdef CONFIG_PROC_FS
+
+/* Miscellaneous */
+
+/*
+ * Structures for interfacing with the /proc filesystem.
+ * Router creates its own directory /proc/net/router with the following
+ * entries:
+ * config device configuration
+ * status global device statistics
+ * <device> entry for each WAN device
+ */
+
+/*
+ * Generic /proc/net/router/<file> file and inode operations
+ */
+
+/*
+ * /proc/net/router
+ */
+
+static DEFINE_MUTEX(config_mutex);
+static struct proc_dir_entry *proc_router;
+
+/* Strings */
+
+/*
+ * Interface functions
+ */
+
+/****** Proc filesystem entry points ****************************************/
+
+/*
+ * Iterator
+ */
+static void *r_start(struct seq_file *m, loff_t *pos)
+{
+ struct wan_device *wandev;
+ loff_t l = *pos;
+
+ mutex_lock(&config_mutex);
+ if (!l--)
+ return SEQ_START_TOKEN;
+ for (wandev = wanrouter_router_devlist; l-- && wandev;
+ wandev = wandev->next)
+ ;
+ return wandev;
+}
+
+static void *r_next(struct seq_file *m, void *v, loff_t *pos)
+{
+ struct wan_device *wandev = v;
+ (*pos)++;
+ return (v == SEQ_START_TOKEN) ? wanrouter_router_devlist : wandev->next;
+}
+
+static void r_stop(struct seq_file *m, void *v)
+{
+ mutex_unlock(&config_mutex);
+}
+
+static int config_show(struct seq_file *m, void *v)
+{
+ struct wan_device *p = v;
+ if (v == SEQ_START_TOKEN) {
+ seq_puts(m, "Device name | port |IRQ|DMA| mem.addr |"
+ "mem.size|option1|option2|option3|option4\n");
+ return 0;
+ }
+ if (!p->state)
+ return 0;
+ seq_printf(m, "%-15s|0x%-4X|%3u|%3u| 0x%-8lX |0x%-6X|%7u|%7u|%7u|%7u\n",
+ p->name, p->ioport, p->irq, p->dma, p->maddr, p->msize,
+ p->hw_opt[0], p->hw_opt[1], p->hw_opt[2], p->hw_opt[3]);
+ return 0;
+}
+
+static int status_show(struct seq_file *m, void *v)
+{
+ struct wan_device *p = v;
+ if (v == SEQ_START_TOKEN) {
+ seq_puts(m, "Device name |protocol|station|interface|"
+ "clocking|baud rate| MTU |ndev|link state\n");
+ return 0;
+ }
+ if (!p->state)
+ return 0;
+ seq_printf(m, "%-15s|%-8s| %-7s| %-9s|%-8s|%9u|%5u|%3u |",
+ p->name,
+ PROT_DECODE(p->config_id),
+ p->config_id == WANCONFIG_FR ?
+ (p->station ? "Node" : "CPE") :
+ (p->config_id == WANCONFIG_X25 ?
+ (p->station ? "DCE" : "DTE") :
+ ("N/A")),
+ p->interface ? "V.35" : "RS-232",
+ p->clocking ? "internal" : "external",
+ p->bps,
+ p->mtu,
+ p->ndev);
+
+ switch (p->state) {
+ case WAN_UNCONFIGURED:
+ seq_printf(m, "%-12s\n", "unconfigured");
+ break;
+ case WAN_DISCONNECTED:
+ seq_printf(m, "%-12s\n", "disconnected");
+ break;
+ case WAN_CONNECTING:
+ seq_printf(m, "%-12s\n", "connecting");
+ break;
+ case WAN_CONNECTED:
+ seq_printf(m, "%-12s\n", "connected");
+ break;
+ default:
+ seq_printf(m, "%-12s\n", "invalid");
+ break;
+ }
+ return 0;
+}
+
+static const struct seq_operations config_op = {
+ .start = r_start,
+ .next = r_next,
+ .stop = r_stop,
+ .show = config_show,
+};
+
+static const struct seq_operations status_op = {
+ .start = r_start,
+ .next = r_next,
+ .stop = r_stop,
+ .show = status_show,
+};
+
+static int config_open(struct inode *inode, struct file *file)
+{
+ return seq_open(file, &config_op);
+}
+
+static int status_open(struct inode *inode, struct file *file)
+{
+ return seq_open(file, &status_op);
+}
+
+static const struct file_operations config_fops = {
+ .owner = THIS_MODULE,
+ .open = config_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release,
+};
+
+static const struct file_operations status_fops = {
+ .owner = THIS_MODULE,
+ .open = status_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release,
+};
+
+static int wandev_show(struct seq_file *m, void *v)
+{
+ struct wan_device *wandev = m->private;
+
+ if (wandev->magic != ROUTER_MAGIC)
+ return 0;
+
+ if (!wandev->state) {
+ seq_puts(m, "device is not configured!\n");
+ return 0;
+ }
+
+ /* Update device statistics */
+ if (wandev->update) {
+ int err = wandev->update(wandev);
+ if (err == -EAGAIN) {
+ seq_puts(m, "Device is busy!\n");
+ return 0;
+ }
+ if (err) {
+ seq_puts(m, "Device is not configured!\n");
+ return 0;
+ }
+ }
+
+ seq_printf(m, PROC_STATS_FORMAT,
+ "total packets received", wandev->stats.rx_packets);
+ seq_printf(m, PROC_STATS_FORMAT,
+ "total packets transmitted", wandev->stats.tx_packets);
+ seq_printf(m, PROC_STATS_FORMAT,
+ "total bytes received", wandev->stats.rx_bytes);
+ seq_printf(m, PROC_STATS_FORMAT,
+ "total bytes transmitted", wandev->stats.tx_bytes);
+ seq_printf(m, PROC_STATS_FORMAT,
+ "bad packets received", wandev->stats.rx_errors);
+ seq_printf(m, PROC_STATS_FORMAT,
+ "packet transmit problems", wandev->stats.tx_errors);
+ seq_printf(m, PROC_STATS_FORMAT,
+ "received frames dropped", wandev->stats.rx_dropped);
+ seq_printf(m, PROC_STATS_FORMAT,
+ "transmit frames dropped", wandev->stats.tx_dropped);
+ seq_printf(m, PROC_STATS_FORMAT,
+ "multicast packets received", wandev->stats.multicast);
+ seq_printf(m, PROC_STATS_FORMAT,
+ "transmit collisions", wandev->stats.collisions);
+ seq_printf(m, PROC_STATS_FORMAT,
+ "receive length errors", wandev->stats.rx_length_errors);
+ seq_printf(m, PROC_STATS_FORMAT,
+ "receiver overrun errors", wandev->stats.rx_over_errors);
+ seq_printf(m, PROC_STATS_FORMAT,
+ "CRC errors", wandev->stats.rx_crc_errors);
+ seq_printf(m, PROC_STATS_FORMAT,
+ "frame format errors (aborts)", wandev->stats.rx_frame_errors);
+ seq_printf(m, PROC_STATS_FORMAT,
+ "receiver fifo overrun", wandev->stats.rx_fifo_errors);
+ seq_printf(m, PROC_STATS_FORMAT,
+ "receiver missed packet", wandev->stats.rx_missed_errors);
+ seq_printf(m, PROC_STATS_FORMAT,
+ "aborted frames transmitted", wandev->stats.tx_aborted_errors);
+ return 0;
+}
+
+static int wandev_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, wandev_show, PDE(inode)->data);
+}
+
+static const struct file_operations wandev_fops = {
+ .owner = THIS_MODULE,
+ .open = wandev_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .unlocked_ioctl = wanrouter_ioctl,
+};
+
+/*
+ * Initialize router proc interface.
+ */
+
+int __init wanrouter_proc_init(void)
+{
+ struct proc_dir_entry *p;
+ proc_router = proc_mkdir(ROUTER_NAME, init_net.proc_net);
+ if (!proc_router)
+ goto fail;
+
+ p = proc_create("config", S_IRUGO, proc_router, &config_fops);
+ if (!p)
+ goto fail_config;
+ p = proc_create("status", S_IRUGO, proc_router, &status_fops);
+ if (!p)
+ goto fail_stat;
+ return 0;
+fail_stat:
+ remove_proc_entry("config", proc_router);
+fail_config:
+ remove_proc_entry(ROUTER_NAME, init_net.proc_net);
+fail:
+ return -ENOMEM;
+}
+
+/*
+ * Clean up router proc interface.
+ */
+
+void wanrouter_proc_cleanup(void)
+{
+ remove_proc_entry("config", proc_router);
+ remove_proc_entry("status", proc_router);
+ remove_proc_entry(ROUTER_NAME, init_net.proc_net);
+}
+
+/*
+ * Add directory entry for WAN device.
+ */
+
+int wanrouter_proc_add(struct wan_device* wandev)
+{
+ if (wandev->magic != ROUTER_MAGIC)
+ return -EINVAL;
+
+ wandev->dent = proc_create(wandev->name, S_IRUGO,
+ proc_router, &wandev_fops);
+ if (!wandev->dent)
+ return -ENOMEM;
+ wandev->dent->data = wandev;
+ return 0;
+}
+
+/*
+ * Delete directory entry for WAN device.
+ */
+int wanrouter_proc_delete(struct wan_device* wandev)
+{
+ if (wandev->magic != ROUTER_MAGIC)
+ return -EINVAL;
+ remove_proc_entry(wandev->name, proc_router);
+ return 0;
+}
+
+#else
+
+/*
+ * No /proc - output stubs
+ */
+
+int __init wanrouter_proc_init(void)
+{
+ return 0;
+}
+
+void wanrouter_proc_cleanup(void)
+{
+}
+
+int wanrouter_proc_add(struct wan_device *wandev)
+{
+ return 0;
+}
+
+int wanrouter_proc_delete(struct wan_device *wandev)
+{
+ return 0;
+}
+
+#endif
+
+/*
+ * End
+ */
+