diff options
author | nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2006-05-31 16:01:46 +0000 |
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committer | nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2006-05-31 16:01:46 +0000 |
commit | 69ae98b46ec77c81215a3c334fd0f85df4888a4c (patch) | |
tree | 460661226ea23e959d2cfbac10dff5c1b12b2fd7 /target/linux/package/switch/src/switch-core.c | |
parent | 50f793994e7020271ffd7b27aced6479be9769eb (diff) |
move target/linux/package/switch to package/, fix a bug in the ipkg dependency handling
git-svn-id: svn://svn.openwrt.org/openwrt/branches/buildroot-ng/openwrt@3864 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/package/switch/src/switch-core.c')
-rw-r--r-- | target/linux/package/switch/src/switch-core.c | 466 |
1 files changed, 0 insertions, 466 deletions
diff --git a/target/linux/package/switch/src/switch-core.c b/target/linux/package/switch/src/switch-core.c deleted file mode 100644 index 6b59b9ba2..000000000 --- a/target/linux/package/switch/src/switch-core.c +++ /dev/null @@ -1,466 +0,0 @@ -/* - * switch-core.c - * - * Copyright (C) 2005 Felix Fietkau <openwrt@nbd.name> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - * - * $Id: $ - * - * Basic doc of driver's /proc interface: - * /proc/switch/<interface>/ - * registers: read-only - * counters: read-only - * reset: write causes hardware reset - * enable_vlan: "0", "1" - * port/<port-number>/ - * enabled: "0", "1" - * media: "AUTO", "100FD", "100HD", "10FD", "10HD" - * vlan/<port-number>/ - * ports: same syntax as for nvram's vlan*ports (eg. "1 2 3 4 5*") - */ - -#include <linux/config.h> -#include <linux/module.h> -#include <linux/init.h> -#include <asm/uaccess.h> -#include <linux/proc_fs.h> -#include <linux/list.h> - -#include "switch-core.h" - -static int drv_num = 0; -static struct proc_dir_entry *switch_root; -switch_driver drivers; - -typedef struct { - struct list_head list; - struct proc_dir_entry *parent; - int nr; - void *driver; - switch_config handler; -} switch_proc_handler; - -typedef struct { - struct proc_dir_entry *driver_dir, *port_dir, *vlan_dir; - struct proc_dir_entry **ports, **vlans; - switch_proc_handler data; - int nr; -} switch_priv; - -static ssize_t switch_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos); -static ssize_t switch_proc_write(struct file *file, const char *buf, size_t count, void *data); - -static struct file_operations switch_proc_fops = { - read: switch_proc_read, - write: switch_proc_write -}; - -static ssize_t switch_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos) -{ -#ifdef LINUX_2_4 - struct inode *inode = file->f_dentry->d_inode; - struct proc_dir_entry *dent = inode->u.generic_ip; -#else - struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode); -#endif - char *page; - int len = 0; - - if ((page = kmalloc(SWITCH_MAX_BUFSZ, GFP_KERNEL)) == NULL) - return -ENOBUFS; - - if (dent->data != NULL) { - switch_proc_handler *handler = (switch_proc_handler *) dent->data; - if (handler->handler.read != NULL) - len += handler->handler.read(handler->driver, page + len, handler->nr); - } - len += 1; - - if (*ppos < len) { - len = min_t(int, len - *ppos, count); - if (copy_to_user(buf, (page + *ppos), len)) { - kfree(page); - return -EFAULT; - } - *ppos += len; - } else { - len = 0; - } - - return len; -} - - -static ssize_t switch_proc_write(struct file *file, const char *buf, size_t count, void *data) -{ -#ifdef LINUX_2_4 - struct inode *inode = file->f_dentry->d_inode; - struct proc_dir_entry *dent = inode->u.generic_ip; -#else - struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode); -#endif - char *page; - int ret = -EINVAL; - - if ((page = kmalloc(count + 1, GFP_KERNEL)) == NULL) - return -ENOBUFS; - - if (copy_from_user(page, buf, count)) { - kfree(page); - return -EINVAL; - } - page[count] = 0; - - if (dent->data != NULL) { - switch_proc_handler *handler = (switch_proc_handler *) dent->data; - if (handler->handler.write != NULL) { - if ((ret = handler->handler.write(handler->driver, page, handler->nr)) >= 0) - ret = count; - } - } - - kfree(page); - return ret; -} - -static int handle_driver_name(void *driver, char *buf, int nr) -{ - char *name = ((switch_driver *) driver)->name; - return sprintf(buf, "%s\n", name); -} - -static int handle_driver_version(void *driver, char *buf, int nr) -{ - char *version = ((switch_driver *) driver)->version; - strcpy(buf, version); - return sprintf(buf, "%s\n", version); -} - -static void add_handler(switch_driver *driver, switch_config *handler, struct proc_dir_entry *parent, int nr) -{ - switch_priv *priv = (switch_priv *) driver->data; - struct proc_dir_entry *p; - int mode; - - switch_proc_handler *tmp; - tmp = (switch_proc_handler *) kmalloc(sizeof(switch_proc_handler), GFP_KERNEL); - INIT_LIST_HEAD(&tmp->list); - tmp->parent = parent; - tmp->nr = nr; - tmp->driver = driver; - memcpy(&tmp->handler, handler, sizeof(switch_config)); - list_add(&tmp->list, &priv->data.list); - - mode = 0; - if (handler->read != NULL) mode |= S_IRUSR; - if (handler->write != NULL) mode |= S_IWUSR; - - if ((p = create_proc_entry(handler->name, mode, parent)) != NULL) { - p->data = (void *) tmp; - p->proc_fops = &switch_proc_fops; - } -} - -static inline void add_handlers(switch_driver *driver, switch_config *handlers, struct proc_dir_entry *parent, int nr) -{ - int i; - - for (i = 0; handlers[i].name != NULL; i++) { - add_handler(driver, &(handlers[i]), parent, nr); - } -} - -static void remove_handlers(switch_priv *priv) -{ - struct list_head *pos, *q; - switch_proc_handler *tmp; - - list_for_each_safe(pos, q, &priv->data.list) { - tmp = list_entry(pos, switch_proc_handler, list); - list_del(pos); - remove_proc_entry(tmp->handler.name, tmp->parent); - kfree(tmp); - } -} - - -static void do_unregister(switch_driver *driver) -{ - char buf[4]; - int i; - switch_priv *priv = (switch_priv *) driver->data; - - remove_handlers(priv); - - for(i = 0; priv->ports[i] != NULL; i++) { - sprintf(buf, "%d", i); - remove_proc_entry(buf, priv->port_dir); - } - kfree(priv->ports); - remove_proc_entry("port", priv->driver_dir); - - for(i = 0; priv->vlans[i] != NULL; i++) { - sprintf(buf, "%d", i); - remove_proc_entry(buf, priv->vlan_dir); - } - kfree(priv->vlans); - remove_proc_entry("vlan", priv->driver_dir); - - remove_proc_entry(driver->interface, switch_root); - - if (priv->nr == (drv_num - 1)) - drv_num--; - - kfree(priv); -} - -switch_config global_driver_handlers[] = { - {"driver", handle_driver_name, NULL}, - {"version", handle_driver_version, NULL}, - {NULL, NULL, NULL} -}; - -static int do_register(switch_driver *driver) -{ - switch_priv *priv; - int i; - char buf[4]; - - if ((priv = kmalloc(sizeof(switch_priv), GFP_KERNEL)) == NULL) - return -ENOBUFS; - driver->data = (void *) priv; - - INIT_LIST_HEAD(&priv->data.list); - - priv->nr = drv_num++; - priv->driver_dir = proc_mkdir(driver->interface, switch_root); - if (driver->driver_handlers != NULL) { - add_handlers(driver, driver->driver_handlers, priv->driver_dir, 0); - add_handlers(driver, global_driver_handlers, priv->driver_dir, 0); - } - - priv->port_dir = proc_mkdir("port", priv->driver_dir); - priv->ports = kmalloc((driver->ports + 1) * sizeof(struct proc_dir_entry *), GFP_KERNEL); - for (i = 0; i < driver->ports; i++) { - sprintf(buf, "%d", i); - priv->ports[i] = proc_mkdir(buf, priv->port_dir); - if (driver->port_handlers != NULL) - add_handlers(driver, driver->port_handlers, priv->ports[i], i); - } - priv->ports[i] = NULL; - - priv->vlan_dir = proc_mkdir("vlan", priv->driver_dir); - priv->vlans = kmalloc((driver->vlans + 1) * sizeof(struct proc_dir_entry *), GFP_KERNEL); - for (i = 0; i < driver->vlans; i++) { - sprintf(buf, "%d", i); - priv->vlans[i] = proc_mkdir(buf, priv->vlan_dir); - if (driver->vlan_handlers != NULL) - add_handlers(driver, driver->vlan_handlers, priv->vlans[i], i); - } - priv->vlans[i] = NULL; - - - return 0; -} - -static inline int isspace(char c) { - switch(c) { - case ' ': - case 0x09: - case 0x0a: - case 0x0d: - return 1; - default: - return 0; - } -} - -#define toupper(c) (islower(c) ? ((c) ^ 0x20) : (c)) -#define islower(c) (((unsigned char)((c) - 'a')) < 26) - -int switch_parse_media(char *buf) -{ - char *str = buf; - while (*buf != 0) { - *buf = toupper(*buf); - buf++; - } - - if (strncmp(str, "AUTO", 4) == 0) - return SWITCH_MEDIA_AUTO; - else if (strncmp(str, "100FD", 5) == 0) - return SWITCH_MEDIA_100 | SWITCH_MEDIA_FD; - else if (strncmp(str, "100HD", 5) == 0) - return SWITCH_MEDIA_100; - else if (strncmp(str, "10FD", 4) == 0) - return SWITCH_MEDIA_FD; - else if (strncmp(str, "10HD", 4) == 0) - return 0; - else return -1; -} - -int switch_print_media(char *buf, int media) -{ - int len = 0; - - if (media & SWITCH_MEDIA_AUTO) - len = sprintf(buf, "Auto"); - else if (media == (SWITCH_MEDIA_100 | SWITCH_MEDIA_FD)) - len = sprintf(buf, "100FD"); - else if (media == SWITCH_MEDIA_100) - len = sprintf(buf, "100HD"); - else if (media == SWITCH_MEDIA_FD) - len = sprintf(buf, "10FD"); - else if (media == 0) - len = sprintf(buf, "10HD"); - else - len = sprintf(buf, "Invalid"); - - return len; -} - -switch_vlan_config *switch_parse_vlan(switch_driver *driver, char *buf) -{ - switch_vlan_config *c; - int j, u, p, s; - - c = kmalloc(sizeof(switch_vlan_config), GFP_KERNEL); - memset(c, 0, sizeof(switch_vlan_config)); - - while (isspace(*buf)) buf++; - j = 0; - while (*buf >= '0' && *buf <= '9') { - j *= 10; - j += *buf++ - '0'; - - u = ((j == driver->cpuport) ? 0 : 1); - p = 0; - s = !(*buf >= '0' && *buf <= '9'); - - if (s) { - while (s && !isspace(*buf) && (*buf != 0)) { - switch(*buf) { - case 'u': - u = 1; - break; - case 't': - u = 0; - break; - case '*': - p = 1; - break; - } - buf++; - } - c->port |= (1 << j); - if (u) - c->untag |= (1 << j); - if (p) - c->pvid |= (1 << j); - - j = 0; - } - - while (isspace(*buf)) buf++; - } - if (*buf != 0) return NULL; - - c->port &= (1 << driver->ports) - 1; - c->untag &= (1 << driver->ports) - 1; - c->pvid &= (1 << driver->ports) - 1; - - return c; -} - - -int switch_register_driver(switch_driver *driver) -{ - struct list_head *pos; - switch_driver *new; - int ret; - - list_for_each(pos, &drivers.list) { - if (strcmp(list_entry(pos, switch_driver, list)->name, driver->name) == 0) { - printk("Switch driver '%s' already exists in the kernel\n", driver->name); - return -EINVAL; - } - if (strcmp(list_entry(pos, switch_driver, list)->interface, driver->interface) == 0) { - printk("There is already a switch registered on the device '%s'\n", driver->interface); - return -EINVAL; - } - } - - new = kmalloc(sizeof(switch_driver), GFP_KERNEL); - memcpy(new, driver, sizeof(switch_driver)); - new->name = strdup(driver->name); - new->interface = strdup(driver->interface); - - if ((ret = do_register(new)) < 0) { - kfree(new->name); - kfree(new); - return ret; - } - INIT_LIST_HEAD(&new->list); - list_add(&new->list, &drivers.list); - - return 0; -} - -void switch_unregister_driver(char *name) { - struct list_head *pos, *q; - switch_driver *tmp; - - list_for_each_safe(pos, q, &drivers.list) { - tmp = list_entry(pos, switch_driver, list); - if (strcmp(tmp->name, name) == 0) { - do_unregister(tmp); - list_del(pos); - kfree(tmp->name); - kfree(tmp); - - return; - } - } -} - -static int __init switch_init() -{ - if ((switch_root = proc_mkdir("switch", NULL)) == NULL) { - printk("%s: proc_mkdir failed.\n", __FILE__); - return -ENODEV; - } - - INIT_LIST_HEAD(&drivers.list); - - return 0; -} - -static void __exit switch_exit() -{ - remove_proc_entry("switch", NULL); -} - -MODULE_AUTHOR("Felix Fietkau <openwrt@nbd.name>"); -MODULE_LICENSE("GPL"); - -EXPORT_SYMBOL(switch_register_driver); -EXPORT_SYMBOL(switch_unregister_driver); -EXPORT_SYMBOL(switch_parse_vlan); -EXPORT_SYMBOL(switch_parse_media); -EXPORT_SYMBOL(switch_print_media); - -module_init(switch_init); -module_exit(switch_exit); |