Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Sysfs attributes of bridge ports |
| 3 | * Linux ethernet bridge |
| 4 | * |
| 5 | * Authors: |
| 6 | * Stephen Hemminger <shemminger@osdl.org> |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU General Public License |
| 10 | * as published by the Free Software Foundation; either version |
| 11 | * 2 of the License, or (at your option) any later version. |
| 12 | */ |
| 13 | |
Randy Dunlap | 4fc268d | 2006-01-11 12:17:47 -0800 | [diff] [blame] | 14 | #include <linux/capability.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 15 | #include <linux/kernel.h> |
| 16 | #include <linux/netdevice.h> |
| 17 | #include <linux/if_bridge.h> |
| 18 | #include <linux/rtnetlink.h> |
| 19 | #include <linux/spinlock.h> |
| 20 | #include <linux/times.h> |
| 21 | |
| 22 | #include "br_private.h" |
| 23 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 24 | #define to_dev(obj) container_of(obj, struct device, kobj) |
Wang Chen | 524ad0a | 2008-11-12 23:39:10 -0800 | [diff] [blame] | 25 | #define to_bridge(cd) ((struct net_bridge *)netdev_priv(to_net_dev(cd))) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | |
| 27 | /* |
| 28 | * Common code for storing bridge parameters. |
| 29 | */ |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 30 | static ssize_t store_bridge_parm(struct device *d, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 31 | const char *buf, size_t len, |
Stephen Hemminger | 8d4698f7 | 2008-09-08 13:44:40 -0700 | [diff] [blame] | 32 | int (*set)(struct net_bridge *, unsigned long)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 33 | { |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 34 | struct net_bridge *br = to_bridge(d); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | char *endp; |
| 36 | unsigned long val; |
Stephen Hemminger | 8d4698f7 | 2008-09-08 13:44:40 -0700 | [diff] [blame] | 37 | int err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | |
| 39 | if (!capable(CAP_NET_ADMIN)) |
| 40 | return -EPERM; |
| 41 | |
| 42 | val = simple_strtoul(buf, &endp, 0); |
| 43 | if (endp == buf) |
| 44 | return -EINVAL; |
| 45 | |
| 46 | spin_lock_bh(&br->lock); |
Stephen Hemminger | 8d4698f7 | 2008-09-08 13:44:40 -0700 | [diff] [blame] | 47 | err = (*set)(br, val); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 48 | spin_unlock_bh(&br->lock); |
Stephen Hemminger | 8d4698f7 | 2008-09-08 13:44:40 -0700 | [diff] [blame] | 49 | return err ? err : len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 50 | } |
| 51 | |
| 52 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 53 | static ssize_t show_forward_delay(struct device *d, |
| 54 | struct device_attribute *attr, char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 55 | { |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 56 | struct net_bridge *br = to_bridge(d); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 57 | return sprintf(buf, "%lu\n", jiffies_to_clock_t(br->forward_delay)); |
| 58 | } |
| 59 | |
Stephen Hemminger | 8d4698f7 | 2008-09-08 13:44:40 -0700 | [diff] [blame] | 60 | static int set_forward_delay(struct net_bridge *br, unsigned long val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 61 | { |
| 62 | unsigned long delay = clock_t_to_jiffies(val); |
| 63 | br->forward_delay = delay; |
| 64 | if (br_is_root_bridge(br)) |
| 65 | br->bridge_forward_delay = delay; |
Stephen Hemminger | 8d4698f7 | 2008-09-08 13:44:40 -0700 | [diff] [blame] | 66 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 67 | } |
| 68 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 69 | static ssize_t store_forward_delay(struct device *d, |
| 70 | struct device_attribute *attr, |
| 71 | const char *buf, size_t len) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 72 | { |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 73 | return store_bridge_parm(d, buf, len, set_forward_delay); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 74 | } |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 75 | static DEVICE_ATTR(forward_delay, S_IRUGO | S_IWUSR, |
| 76 | show_forward_delay, store_forward_delay); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 77 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 78 | static ssize_t show_hello_time(struct device *d, struct device_attribute *attr, |
| 79 | char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 80 | { |
| 81 | return sprintf(buf, "%lu\n", |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 82 | jiffies_to_clock_t(to_bridge(d)->hello_time)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 83 | } |
| 84 | |
Stephen Hemminger | 8d4698f7 | 2008-09-08 13:44:40 -0700 | [diff] [blame] | 85 | static int set_hello_time(struct net_bridge *br, unsigned long val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 86 | { |
| 87 | unsigned long t = clock_t_to_jiffies(val); |
Stephen Hemminger | 8d4698f7 | 2008-09-08 13:44:40 -0700 | [diff] [blame] | 88 | |
| 89 | if (t < HZ) |
| 90 | return -EINVAL; |
| 91 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 92 | br->hello_time = t; |
| 93 | if (br_is_root_bridge(br)) |
| 94 | br->bridge_hello_time = t; |
Stephen Hemminger | 8d4698f7 | 2008-09-08 13:44:40 -0700 | [diff] [blame] | 95 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 96 | } |
| 97 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 98 | static ssize_t store_hello_time(struct device *d, |
| 99 | struct device_attribute *attr, const char *buf, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 100 | size_t len) |
| 101 | { |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 102 | return store_bridge_parm(d, buf, len, set_hello_time); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 103 | } |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 104 | static DEVICE_ATTR(hello_time, S_IRUGO | S_IWUSR, show_hello_time, |
| 105 | store_hello_time); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 106 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 107 | static ssize_t show_max_age(struct device *d, struct device_attribute *attr, |
| 108 | char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 109 | { |
| 110 | return sprintf(buf, "%lu\n", |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 111 | jiffies_to_clock_t(to_bridge(d)->max_age)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 112 | } |
| 113 | |
Stephen Hemminger | 8d4698f7 | 2008-09-08 13:44:40 -0700 | [diff] [blame] | 114 | static int set_max_age(struct net_bridge *br, unsigned long val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 115 | { |
| 116 | unsigned long t = clock_t_to_jiffies(val); |
| 117 | br->max_age = t; |
| 118 | if (br_is_root_bridge(br)) |
| 119 | br->bridge_max_age = t; |
Stephen Hemminger | 8d4698f7 | 2008-09-08 13:44:40 -0700 | [diff] [blame] | 120 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 121 | } |
| 122 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 123 | static ssize_t store_max_age(struct device *d, struct device_attribute *attr, |
| 124 | const char *buf, size_t len) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 125 | { |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 126 | return store_bridge_parm(d, buf, len, set_max_age); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 127 | } |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 128 | static DEVICE_ATTR(max_age, S_IRUGO | S_IWUSR, show_max_age, store_max_age); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 129 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 130 | static ssize_t show_ageing_time(struct device *d, |
| 131 | struct device_attribute *attr, char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 132 | { |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 133 | struct net_bridge *br = to_bridge(d); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 134 | return sprintf(buf, "%lu\n", jiffies_to_clock_t(br->ageing_time)); |
| 135 | } |
| 136 | |
Stephen Hemminger | 8d4698f7 | 2008-09-08 13:44:40 -0700 | [diff] [blame] | 137 | static int set_ageing_time(struct net_bridge *br, unsigned long val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 138 | { |
| 139 | br->ageing_time = clock_t_to_jiffies(val); |
Stephen Hemminger | 8d4698f7 | 2008-09-08 13:44:40 -0700 | [diff] [blame] | 140 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 141 | } |
| 142 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 143 | static ssize_t store_ageing_time(struct device *d, |
| 144 | struct device_attribute *attr, |
| 145 | const char *buf, size_t len) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 146 | { |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 147 | return store_bridge_parm(d, buf, len, set_ageing_time); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 148 | } |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 149 | static DEVICE_ATTR(ageing_time, S_IRUGO | S_IWUSR, show_ageing_time, |
| 150 | store_ageing_time); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 151 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 152 | static ssize_t show_stp_state(struct device *d, |
| 153 | struct device_attribute *attr, char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 154 | { |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 155 | struct net_bridge *br = to_bridge(d); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 156 | return sprintf(buf, "%d\n", br->stp_enabled); |
| 157 | } |
| 158 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 159 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 160 | static ssize_t store_stp_state(struct device *d, |
| 161 | struct device_attribute *attr, const char *buf, |
| 162 | size_t len) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 163 | { |
Stephen Hemminger | 1712088 | 2007-08-14 13:21:34 -0700 | [diff] [blame] | 164 | struct net_bridge *br = to_bridge(d); |
| 165 | char *endp; |
| 166 | unsigned long val; |
| 167 | |
| 168 | if (!capable(CAP_NET_ADMIN)) |
| 169 | return -EPERM; |
| 170 | |
| 171 | val = simple_strtoul(buf, &endp, 0); |
| 172 | if (endp == buf) |
| 173 | return -EINVAL; |
| 174 | |
| 175 | rtnl_lock(); |
| 176 | br_stp_set_enabled(br, val); |
| 177 | rtnl_unlock(); |
| 178 | |
Al Viro | 35b426c | 2007-08-19 04:51:26 +0100 | [diff] [blame] | 179 | return len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 180 | } |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 181 | static DEVICE_ATTR(stp_state, S_IRUGO | S_IWUSR, show_stp_state, |
| 182 | store_stp_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 183 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 184 | static ssize_t show_priority(struct device *d, struct device_attribute *attr, |
| 185 | char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 186 | { |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 187 | struct net_bridge *br = to_bridge(d); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 188 | return sprintf(buf, "%d\n", |
| 189 | (br->bridge_id.prio[0] << 8) | br->bridge_id.prio[1]); |
| 190 | } |
| 191 | |
Stephen Hemminger | 8d4698f7 | 2008-09-08 13:44:40 -0700 | [diff] [blame] | 192 | static int set_priority(struct net_bridge *br, unsigned long val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 193 | { |
| 194 | br_stp_set_bridge_priority(br, (u16) val); |
Stephen Hemminger | 8d4698f7 | 2008-09-08 13:44:40 -0700 | [diff] [blame] | 195 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 196 | } |
| 197 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 198 | static ssize_t store_priority(struct device *d, struct device_attribute *attr, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 199 | const char *buf, size_t len) |
| 200 | { |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 201 | return store_bridge_parm(d, buf, len, set_priority); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 202 | } |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 203 | static DEVICE_ATTR(priority, S_IRUGO | S_IWUSR, show_priority, store_priority); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 204 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 205 | static ssize_t show_root_id(struct device *d, struct device_attribute *attr, |
| 206 | char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 207 | { |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 208 | return br_show_bridge_id(buf, &to_bridge(d)->designated_root); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 209 | } |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 210 | static DEVICE_ATTR(root_id, S_IRUGO, show_root_id, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 211 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 212 | static ssize_t show_bridge_id(struct device *d, struct device_attribute *attr, |
| 213 | char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 214 | { |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 215 | return br_show_bridge_id(buf, &to_bridge(d)->bridge_id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 216 | } |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 217 | static DEVICE_ATTR(bridge_id, S_IRUGO, show_bridge_id, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 218 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 219 | static ssize_t show_root_port(struct device *d, struct device_attribute *attr, |
| 220 | char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 221 | { |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 222 | return sprintf(buf, "%d\n", to_bridge(d)->root_port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 223 | } |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 224 | static DEVICE_ATTR(root_port, S_IRUGO, show_root_port, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 225 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 226 | static ssize_t show_root_path_cost(struct device *d, |
| 227 | struct device_attribute *attr, char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | { |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 229 | return sprintf(buf, "%d\n", to_bridge(d)->root_path_cost); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 230 | } |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 231 | static DEVICE_ATTR(root_path_cost, S_IRUGO, show_root_path_cost, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 232 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 233 | static ssize_t show_topology_change(struct device *d, |
| 234 | struct device_attribute *attr, char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 235 | { |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 236 | return sprintf(buf, "%d\n", to_bridge(d)->topology_change); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 237 | } |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 238 | static DEVICE_ATTR(topology_change, S_IRUGO, show_topology_change, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 239 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 240 | static ssize_t show_topology_change_detected(struct device *d, |
| 241 | struct device_attribute *attr, |
| 242 | char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 243 | { |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 244 | struct net_bridge *br = to_bridge(d); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 245 | return sprintf(buf, "%d\n", br->topology_change_detected); |
| 246 | } |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 247 | static DEVICE_ATTR(topology_change_detected, S_IRUGO, |
| 248 | show_topology_change_detected, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 249 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 250 | static ssize_t show_hello_timer(struct device *d, |
| 251 | struct device_attribute *attr, char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 252 | { |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 253 | struct net_bridge *br = to_bridge(d); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 254 | return sprintf(buf, "%ld\n", br_timer_value(&br->hello_timer)); |
| 255 | } |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 256 | static DEVICE_ATTR(hello_timer, S_IRUGO, show_hello_timer, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 257 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 258 | static ssize_t show_tcn_timer(struct device *d, struct device_attribute *attr, |
| 259 | char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 260 | { |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 261 | struct net_bridge *br = to_bridge(d); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 262 | return sprintf(buf, "%ld\n", br_timer_value(&br->tcn_timer)); |
| 263 | } |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 264 | static DEVICE_ATTR(tcn_timer, S_IRUGO, show_tcn_timer, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 265 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 266 | static ssize_t show_topology_change_timer(struct device *d, |
| 267 | struct device_attribute *attr, |
| 268 | char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 269 | { |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 270 | struct net_bridge *br = to_bridge(d); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 271 | return sprintf(buf, "%ld\n", br_timer_value(&br->topology_change_timer)); |
| 272 | } |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 273 | static DEVICE_ATTR(topology_change_timer, S_IRUGO, show_topology_change_timer, |
| 274 | NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 275 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 276 | static ssize_t show_gc_timer(struct device *d, struct device_attribute *attr, |
| 277 | char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 278 | { |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 279 | struct net_bridge *br = to_bridge(d); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 280 | return sprintf(buf, "%ld\n", br_timer_value(&br->gc_timer)); |
| 281 | } |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 282 | static DEVICE_ATTR(gc_timer, S_IRUGO, show_gc_timer, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 283 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 284 | static ssize_t show_group_addr(struct device *d, |
| 285 | struct device_attribute *attr, char *buf) |
Stephen Hemminger | fda93d9 | 2006-03-20 22:59:21 -0800 | [diff] [blame] | 286 | { |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 287 | struct net_bridge *br = to_bridge(d); |
Stephen Hemminger | fda93d9 | 2006-03-20 22:59:21 -0800 | [diff] [blame] | 288 | return sprintf(buf, "%x:%x:%x:%x:%x:%x\n", |
| 289 | br->group_addr[0], br->group_addr[1], |
| 290 | br->group_addr[2], br->group_addr[3], |
| 291 | br->group_addr[4], br->group_addr[5]); |
| 292 | } |
| 293 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 294 | static ssize_t store_group_addr(struct device *d, |
| 295 | struct device_attribute *attr, |
| 296 | const char *buf, size_t len) |
Stephen Hemminger | fda93d9 | 2006-03-20 22:59:21 -0800 | [diff] [blame] | 297 | { |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 298 | struct net_bridge *br = to_bridge(d); |
Stephen Hemminger | fda93d9 | 2006-03-20 22:59:21 -0800 | [diff] [blame] | 299 | unsigned new_addr[6]; |
| 300 | int i; |
| 301 | |
| 302 | if (!capable(CAP_NET_ADMIN)) |
| 303 | return -EPERM; |
| 304 | |
| 305 | if (sscanf(buf, "%x:%x:%x:%x:%x:%x", |
| 306 | &new_addr[0], &new_addr[1], &new_addr[2], |
| 307 | &new_addr[3], &new_addr[4], &new_addr[5]) != 6) |
| 308 | return -EINVAL; |
| 309 | |
| 310 | /* Must be 01:80:c2:00:00:0X */ |
| 311 | for (i = 0; i < 5; i++) |
| 312 | if (new_addr[i] != br_group_address[i]) |
| 313 | return -EINVAL; |
| 314 | |
| 315 | if (new_addr[5] & ~0xf) |
| 316 | return -EINVAL; |
| 317 | |
| 318 | if (new_addr[5] == 1 /* 802.3x Pause address */ |
| 319 | || new_addr[5] == 2 /* 802.3ad Slow protocols */ |
| 320 | || new_addr[5] == 3) /* 802.1X PAE address */ |
| 321 | return -EINVAL; |
| 322 | |
| 323 | spin_lock_bh(&br->lock); |
| 324 | for (i = 0; i < 6; i++) |
| 325 | br->group_addr[i] = new_addr[i]; |
| 326 | spin_unlock_bh(&br->lock); |
| 327 | return len; |
| 328 | } |
| 329 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 330 | static DEVICE_ATTR(group_addr, S_IRUGO | S_IWUSR, |
| 331 | show_group_addr, store_group_addr); |
Stephen Hemminger | fda93d9 | 2006-03-20 22:59:21 -0800 | [diff] [blame] | 332 | |
Stephen Hemminger | 9cf6374 | 2007-04-09 12:57:54 -0700 | [diff] [blame] | 333 | static ssize_t store_flush(struct device *d, |
| 334 | struct device_attribute *attr, |
| 335 | const char *buf, size_t len) |
| 336 | { |
| 337 | struct net_bridge *br = to_bridge(d); |
| 338 | |
| 339 | if (!capable(CAP_NET_ADMIN)) |
| 340 | return -EPERM; |
| 341 | |
| 342 | br_fdb_flush(br); |
| 343 | return len; |
| 344 | } |
| 345 | static DEVICE_ATTR(flush, S_IWUSR, NULL, store_flush); |
Stephen Hemminger | fda93d9 | 2006-03-20 22:59:21 -0800 | [diff] [blame] | 346 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 347 | static struct attribute *bridge_attrs[] = { |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 348 | &dev_attr_forward_delay.attr, |
| 349 | &dev_attr_hello_time.attr, |
| 350 | &dev_attr_max_age.attr, |
| 351 | &dev_attr_ageing_time.attr, |
| 352 | &dev_attr_stp_state.attr, |
| 353 | &dev_attr_priority.attr, |
| 354 | &dev_attr_bridge_id.attr, |
| 355 | &dev_attr_root_id.attr, |
| 356 | &dev_attr_root_path_cost.attr, |
| 357 | &dev_attr_root_port.attr, |
| 358 | &dev_attr_topology_change.attr, |
| 359 | &dev_attr_topology_change_detected.attr, |
| 360 | &dev_attr_hello_timer.attr, |
| 361 | &dev_attr_tcn_timer.attr, |
| 362 | &dev_attr_topology_change_timer.attr, |
| 363 | &dev_attr_gc_timer.attr, |
| 364 | &dev_attr_group_addr.attr, |
Stephen Hemminger | 9cf6374 | 2007-04-09 12:57:54 -0700 | [diff] [blame] | 365 | &dev_attr_flush.attr, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 366 | NULL |
| 367 | }; |
| 368 | |
| 369 | static struct attribute_group bridge_group = { |
| 370 | .name = SYSFS_BRIDGE_ATTR, |
| 371 | .attrs = bridge_attrs, |
| 372 | }; |
| 373 | |
| 374 | /* |
| 375 | * Export the forwarding information table as a binary file |
| 376 | * The records are struct __fdb_entry. |
| 377 | * |
| 378 | * Returns the number of bytes read. |
| 379 | */ |
Zhang Rui | 91a6902 | 2007-06-09 13:57:22 +0800 | [diff] [blame] | 380 | static ssize_t brforward_read(struct kobject *kobj, |
| 381 | struct bin_attribute *bin_attr, |
| 382 | char *buf, loff_t off, size_t count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 383 | { |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 384 | struct device *dev = to_dev(kobj); |
| 385 | struct net_bridge *br = to_bridge(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 386 | int n; |
| 387 | |
| 388 | /* must read whole records */ |
| 389 | if (off % sizeof(struct __fdb_entry) != 0) |
| 390 | return -EINVAL; |
| 391 | |
YOSHIFUJI Hideaki | 9d6f229 | 2007-02-09 23:24:35 +0900 | [diff] [blame] | 392 | n = br_fdb_fillbuf(br, buf, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 393 | count / sizeof(struct __fdb_entry), |
| 394 | off / sizeof(struct __fdb_entry)); |
| 395 | |
| 396 | if (n > 0) |
| 397 | n *= sizeof(struct __fdb_entry); |
YOSHIFUJI Hideaki | 9d6f229 | 2007-02-09 23:24:35 +0900 | [diff] [blame] | 398 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 399 | return n; |
| 400 | } |
| 401 | |
| 402 | static struct bin_attribute bridge_forward = { |
| 403 | .attr = { .name = SYSFS_BRIDGE_FDB, |
Tejun Heo | 7b59575 | 2007-06-14 03:45:17 +0900 | [diff] [blame] | 404 | .mode = S_IRUGO, }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 405 | .read = brforward_read, |
| 406 | }; |
| 407 | |
| 408 | /* |
| 409 | * Add entries in sysfs onto the existing network class device |
| 410 | * for the bridge. |
| 411 | * Adds a attribute group "bridge" containing tuning parameters. |
| 412 | * Binary attribute containing the forward table |
| 413 | * Sub directory to hold links to interfaces. |
| 414 | * |
| 415 | * Note: the ifobj exists only to be a subdirectory |
| 416 | * to hold links. The ifobj exists in same data structure |
| 417 | * as it's parent the bridge so reference counting works. |
| 418 | */ |
| 419 | int br_sysfs_addbr(struct net_device *dev) |
| 420 | { |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 421 | struct kobject *brobj = &dev->dev.kobj; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 422 | struct net_bridge *br = netdev_priv(dev); |
| 423 | int err; |
| 424 | |
| 425 | err = sysfs_create_group(brobj, &bridge_group); |
| 426 | if (err) { |
| 427 | pr_info("%s: can't create group %s/%s\n", |
Harvey Harrison | 0dc4787 | 2008-03-05 20:47:47 -0800 | [diff] [blame] | 428 | __func__, dev->name, bridge_group.name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 429 | goto out1; |
| 430 | } |
| 431 | |
| 432 | err = sysfs_create_bin_file(brobj, &bridge_forward); |
| 433 | if (err) { |
Randy Dunlap | 1842c4b | 2006-10-25 23:07:37 -0700 | [diff] [blame] | 434 | pr_info("%s: can't create attribute file %s/%s\n", |
Harvey Harrison | 0dc4787 | 2008-03-05 20:47:47 -0800 | [diff] [blame] | 435 | __func__, dev->name, bridge_forward.attr.name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 436 | goto out2; |
| 437 | } |
| 438 | |
Greg Kroah-Hartman | 43b98c4 | 2007-12-17 15:54:39 -0400 | [diff] [blame] | 439 | br->ifobj = kobject_create_and_add(SYSFS_BRIDGE_PORT_SUBDIR, brobj); |
| 440 | if (!br->ifobj) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 441 | pr_info("%s: can't add kobject (directory) %s/%s\n", |
Harvey Harrison | 0dc4787 | 2008-03-05 20:47:47 -0800 | [diff] [blame] | 442 | __func__, dev->name, SYSFS_BRIDGE_PORT_SUBDIR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 443 | goto out3; |
| 444 | } |
| 445 | return 0; |
| 446 | out3: |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 447 | sysfs_remove_bin_file(&dev->dev.kobj, &bridge_forward); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 448 | out2: |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 449 | sysfs_remove_group(&dev->dev.kobj, &bridge_group); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 450 | out1: |
| 451 | return err; |
| 452 | |
| 453 | } |
| 454 | |
| 455 | void br_sysfs_delbr(struct net_device *dev) |
| 456 | { |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 457 | struct kobject *kobj = &dev->dev.kobj; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 458 | struct net_bridge *br = netdev_priv(dev); |
| 459 | |
Greg Kroah-Hartman | 78a2d90 | 2007-12-20 08:13:05 -0800 | [diff] [blame] | 460 | kobject_put(br->ifobj); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 461 | sysfs_remove_bin_file(kobj, &bridge_forward); |
| 462 | sysfs_remove_group(kobj, &bridge_group); |
| 463 | } |