Blame view
net/bridge/br_sysfs_if.c
8.12 KB
1da177e4c Linux-2.6.12-rc2 |
1 2 3 4 5 6 7 8 9 10 11 12 |
/* * Sysfs attributes of bridge ports * Linux ethernet bridge * * Authors: * Stephen Hemminger <shemminger@osdl.org> * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. */ |
4fc268d24 [PATCH] capable/c... |
13 |
#include <linux/capability.h> |
1da177e4c Linux-2.6.12-rc2 |
14 15 16 17 18 19 20 21 22 23 24 |
#include <linux/kernel.h> #include <linux/netdevice.h> #include <linux/if_bridge.h> #include <linux/rtnetlink.h> #include <linux/spinlock.h> #include "br_private.h" struct brport_attribute { struct attribute attr; ssize_t (*show)(struct net_bridge_port *, char *); |
14f98f258 bridge: range che... |
25 |
int (*store)(struct net_bridge_port *, unsigned long); |
1da177e4c Linux-2.6.12-rc2 |
26 27 28 |
}; #define BRPORT_ATTR(_name,_mode,_show,_store) \ |
5a0d513b6 bridge: make port... |
29 |
const struct brport_attribute brport_attr_##_name = { \ |
1da177e4c Linux-2.6.12-rc2 |
30 |
.attr = {.name = __stringify(_name), \ |
7b595756e sysfs: kill unnec... |
31 |
.mode = _mode }, \ |
1da177e4c Linux-2.6.12-rc2 |
32 33 34 |
.show = _show, \ .store = _store, \ }; |
cd7537326 bridge: add templ... |
35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 |
#define BRPORT_ATTR_FLAG(_name, _mask) \ static ssize_t show_##_name(struct net_bridge_port *p, char *buf) \ { \ return sprintf(buf, "%d ", !!(p->flags & _mask)); \ } \ static int store_##_name(struct net_bridge_port *p, unsigned long v) \ { \ unsigned long flags = p->flags; \ if (v) \ flags |= _mask; \ else \ flags &= ~_mask; \ if (flags != p->flags) { \ p->flags = flags; \ br_ifinfo_notify(RTM_NEWLINK, p); \ } \ return 0; \ } \ static BRPORT_ATTR(_name, S_IRUGO | S_IWUSR, \ show_##_name, store_##_name) |
1da177e4c Linux-2.6.12-rc2 |
56 57 58 59 60 |
static ssize_t show_path_cost(struct net_bridge_port *p, char *buf) { return sprintf(buf, "%d ", p->path_cost); } |
14f98f258 bridge: range che... |
61 |
|
1da177e4c Linux-2.6.12-rc2 |
62 |
static BRPORT_ATTR(path_cost, S_IRUGO | S_IWUSR, |
14f98f258 bridge: range che... |
63 |
show_path_cost, br_stp_set_path_cost); |
1da177e4c Linux-2.6.12-rc2 |
64 65 66 67 68 69 |
static ssize_t show_priority(struct net_bridge_port *p, char *buf) { return sprintf(buf, "%d ", p->priority); } |
14f98f258 bridge: range che... |
70 |
|
1da177e4c Linux-2.6.12-rc2 |
71 |
static BRPORT_ATTR(priority, S_IRUGO | S_IWUSR, |
14f98f258 bridge: range che... |
72 |
show_priority, br_stp_set_port_priority); |
1da177e4c Linux-2.6.12-rc2 |
73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 |
static ssize_t show_designated_root(struct net_bridge_port *p, char *buf) { return br_show_bridge_id(buf, &p->designated_root); } static BRPORT_ATTR(designated_root, S_IRUGO, show_designated_root, NULL); static ssize_t show_designated_bridge(struct net_bridge_port *p, char *buf) { return br_show_bridge_id(buf, &p->designated_bridge); } static BRPORT_ATTR(designated_bridge, S_IRUGO, show_designated_bridge, NULL); static ssize_t show_designated_port(struct net_bridge_port *p, char *buf) { return sprintf(buf, "%d ", p->designated_port); } static BRPORT_ATTR(designated_port, S_IRUGO, show_designated_port, NULL); static ssize_t show_designated_cost(struct net_bridge_port *p, char *buf) { return sprintf(buf, "%d ", p->designated_cost); } static BRPORT_ATTR(designated_cost, S_IRUGO, show_designated_cost, NULL); static ssize_t show_port_id(struct net_bridge_port *p, char *buf) { return sprintf(buf, "0x%x ", p->port_id); } static BRPORT_ATTR(port_id, S_IRUGO, show_port_id, NULL); static ssize_t show_port_no(struct net_bridge_port *p, char *buf) { return sprintf(buf, "0x%x ", p->port_no); } static BRPORT_ATTR(port_no, S_IRUGO, show_port_no, NULL); static ssize_t show_change_ack(struct net_bridge_port *p, char *buf) { return sprintf(buf, "%d ", p->topology_change_ack); } static BRPORT_ATTR(change_ack, S_IRUGO, show_change_ack, NULL); static ssize_t show_config_pending(struct net_bridge_port *p, char *buf) { return sprintf(buf, "%d ", p->config_pending); } static BRPORT_ATTR(config_pending, S_IRUGO, show_config_pending, NULL); static ssize_t show_port_state(struct net_bridge_port *p, char *buf) { return sprintf(buf, "%d ", p->state); } static BRPORT_ATTR(state, S_IRUGO, show_port_state, NULL); static ssize_t show_message_age_timer(struct net_bridge_port *p, char *buf) { return sprintf(buf, "%ld ", br_timer_value(&p->message_age_timer)); } static BRPORT_ATTR(message_age_timer, S_IRUGO, show_message_age_timer, NULL); static ssize_t show_forward_delay_timer(struct net_bridge_port *p, char *buf) { return sprintf(buf, "%ld ", br_timer_value(&p->forward_delay_timer)); } static BRPORT_ATTR(forward_delay_timer, S_IRUGO, show_forward_delay_timer, NULL); static ssize_t show_hold_timer(struct net_bridge_port *p, char *buf) { return sprintf(buf, "%ld ", br_timer_value(&p->hold_timer)); } static BRPORT_ATTR(hold_timer, S_IRUGO, show_hold_timer, NULL); |
14f98f258 bridge: range che... |
159 |
static int store_flush(struct net_bridge_port *p, unsigned long v) |
9cf637473 bridge: add sysfs... |
160 161 162 163 164 |
{ br_fdb_delete_by_port(p->br, p, 0); // Don't delete local entry return 0; } static BRPORT_ATTR(flush, S_IWUSR, NULL, store_flush); |
cd7537326 bridge: add templ... |
165 |
BRPORT_ATTR_FLAG(hairpin_mode, BR_HAIRPIN_MODE); |
a2e01a65c bridge: implement... |
166 |
BRPORT_ATTR_FLAG(bpdu_guard, BR_BPDU_GUARD); |
1007dd1aa bridge: add root ... |
167 |
BRPORT_ATTR_FLAG(root_block, BR_ROOT_BLOCK); |
3982d3d28 net/bridge: Add '... |
168 |
|
0909e1175 bridge: Add multi... |
169 170 171 172 173 174 |
#ifdef CONFIG_BRIDGE_IGMP_SNOOPING static ssize_t show_multicast_router(struct net_bridge_port *p, char *buf) { return sprintf(buf, "%d ", p->multicast_router); } |
14f98f258 bridge: range che... |
175 |
static int store_multicast_router(struct net_bridge_port *p, |
0909e1175 bridge: Add multi... |
176 177 178 179 180 181 |
unsigned long v) { return br_multicast_set_port_router(p, v); } static BRPORT_ATTR(multicast_router, S_IRUGO | S_IWUSR, show_multicast_router, store_multicast_router); |
50426b592 bridge: implement... |
182 |
|
c2d3babfa bridge: implement... |
183 |
BRPORT_ATTR_FLAG(multicast_fast_leave, BR_MULTICAST_FAST_LEAVE); |
0909e1175 bridge: Add multi... |
184 |
#endif |
5a0d513b6 bridge: make port... |
185 |
static const struct brport_attribute *brport_attrs[] = { |
1da177e4c Linux-2.6.12-rc2 |
186 187 188 189 190 191 192 193 194 195 196 197 198 199 |
&brport_attr_path_cost, &brport_attr_priority, &brport_attr_port_id, &brport_attr_port_no, &brport_attr_designated_root, &brport_attr_designated_bridge, &brport_attr_designated_port, &brport_attr_designated_cost, &brport_attr_state, &brport_attr_change_ack, &brport_attr_config_pending, &brport_attr_message_age_timer, &brport_attr_forward_delay_timer, &brport_attr_hold_timer, |
9cf637473 bridge: add sysfs... |
200 |
&brport_attr_flush, |
3982d3d28 net/bridge: Add '... |
201 |
&brport_attr_hairpin_mode, |
a2e01a65c bridge: implement... |
202 |
&brport_attr_bpdu_guard, |
1007dd1aa bridge: add root ... |
203 |
&brport_attr_root_block, |
0909e1175 bridge: Add multi... |
204 205 |
#ifdef CONFIG_BRIDGE_IGMP_SNOOPING &brport_attr_multicast_router, |
50426b592 bridge: implement... |
206 |
&brport_attr_multicast_fast_leave, |
0909e1175 bridge: Add multi... |
207 |
#endif |
1da177e4c Linux-2.6.12-rc2 |
208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 |
NULL }; #define to_brport_attr(_at) container_of(_at, struct brport_attribute, attr) #define to_brport(obj) container_of(obj, struct net_bridge_port, kobj) static ssize_t brport_show(struct kobject * kobj, struct attribute * attr, char * buf) { struct brport_attribute * brport_attr = to_brport_attr(attr); struct net_bridge_port * p = to_brport(kobj); return brport_attr->show(p, buf); } static ssize_t brport_store(struct kobject * kobj, struct attribute * attr, const char * buf, size_t count) { struct brport_attribute * brport_attr = to_brport_attr(attr); struct net_bridge_port * p = to_brport(kobj); ssize_t ret = -EINVAL; char *endp; unsigned long val; |
cb9905030 net: Allow userns... |
232 |
if (!ns_capable(dev_net(p->dev)->user_ns, CAP_NET_ADMIN)) |
1da177e4c Linux-2.6.12-rc2 |
233 234 235 236 |
return -EPERM; val = simple_strtoul(buf, &endp, 0); if (endp != buf) { |
af38f2989 net: Fix bridgein... |
237 238 |
if (!rtnl_trylock()) return restart_syscall(); |
1da177e4c Linux-2.6.12-rc2 |
239 240 241 242 243 244 245 246 247 248 249 |
if (p->dev && p->br && brport_attr->store) { spin_lock_bh(&p->br->lock); ret = brport_attr->store(p, val); spin_unlock_bh(&p->br->lock); if (ret == 0) ret = count; } rtnl_unlock(); } return ret; } |
52cf25d0a Driver core: Cons... |
250 |
const struct sysfs_ops brport_sysfs_ops = { |
1da177e4c Linux-2.6.12-rc2 |
251 252 253 |
.show = brport_show, .store = brport_store, }; |
1da177e4c Linux-2.6.12-rc2 |
254 255 256 |
/* * Add sysfs entries to ethernet device added to a bridge. * Creates a brport subdirectory with bridge attributes. |
e0f43752a bridge: update sy... |
257 |
* Puts symlink in bridge's brif subdirectory |
1da177e4c Linux-2.6.12-rc2 |
258 259 260 261 |
*/ int br_sysfs_addif(struct net_bridge_port *p) { struct net_bridge *br = p->br; |
5a0d513b6 bridge: make port... |
262 |
const struct brport_attribute **a; |
1da177e4c Linux-2.6.12-rc2 |
263 |
int err; |
43cb76d91 Network: convert ... |
264 |
err = sysfs_create_link(&p->kobj, &br->dev->dev.kobj, |
1da177e4c Linux-2.6.12-rc2 |
265 266 |
SYSFS_BRIDGE_PORT_LINK); if (err) |
e0f43752a bridge: update sy... |
267 |
return err; |
1da177e4c Linux-2.6.12-rc2 |
268 269 270 271 |
for (a = brport_attrs; *a; ++a) { err = sysfs_create_file(&p->kobj, &((*a)->attr)); if (err) |
e0f43752a bridge: update sy... |
272 |
return err; |
1da177e4c Linux-2.6.12-rc2 |
273 |
} |
e0f43752a bridge: update sy... |
274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 |
strlcpy(p->sysfs_name, p->dev->name, IFNAMSIZ); return sysfs_create_link(br->ifobj, &p->kobj, p->sysfs_name); } /* Rename bridge's brif symlink */ int br_sysfs_renameif(struct net_bridge_port *p) { struct net_bridge *br = p->br; int err; /* If a rename fails, the rollback will cause another * rename call with the existing name. */ if (!strncmp(p->sysfs_name, p->dev->name, IFNAMSIZ)) return 0; err = sysfs_rename_link(br->ifobj, &p->kobj, p->sysfs_name, p->dev->name); if (err) netdev_notice(br->dev, "unable to rename link %s to %s", p->sysfs_name, p->dev->name); else strlcpy(p->sysfs_name, p->dev->name, IFNAMSIZ); |
1da177e4c Linux-2.6.12-rc2 |
297 298 |
return err; } |