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-rw-r--r--net/core/rtnetlink.c54
1 files changed, 23 insertions, 31 deletions
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 391a62cd9df6..e2f3317f290f 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -38,7 +38,6 @@
38 38
39#include <asm/uaccess.h> 39#include <asm/uaccess.h>
40#include <asm/system.h> 40#include <asm/system.h>
41#include <asm/string.h>
42 41
43#include <linux/inet.h> 42#include <linux/inet.h>
44#include <linux/netdevice.h> 43#include <linux/netdevice.h>
@@ -53,8 +52,7 @@
53#include <net/rtnetlink.h> 52#include <net/rtnetlink.h>
54#include <net/net_namespace.h> 53#include <net/net_namespace.h>
55 54
56struct rtnl_link 55struct rtnl_link {
57{
58 rtnl_doit_func doit; 56 rtnl_doit_func doit;
59 rtnl_dumpit_func dumpit; 57 rtnl_dumpit_func dumpit;
60}; 58};
@@ -65,6 +63,7 @@ void rtnl_lock(void)
65{ 63{
66 mutex_lock(&rtnl_mutex); 64 mutex_lock(&rtnl_mutex);
67} 65}
66EXPORT_SYMBOL(rtnl_lock);
68 67
69void __rtnl_unlock(void) 68void __rtnl_unlock(void)
70{ 69{
@@ -76,16 +75,19 @@ void rtnl_unlock(void)
76 /* This fellow will unlock it for us. */ 75 /* This fellow will unlock it for us. */
77 netdev_run_todo(); 76 netdev_run_todo();
78} 77}
78EXPORT_SYMBOL(rtnl_unlock);
79 79
80int rtnl_trylock(void) 80int rtnl_trylock(void)
81{ 81{
82 return mutex_trylock(&rtnl_mutex); 82 return mutex_trylock(&rtnl_mutex);
83} 83}
84EXPORT_SYMBOL(rtnl_trylock);
84 85
85int rtnl_is_locked(void) 86int rtnl_is_locked(void)
86{ 87{
87 return mutex_is_locked(&rtnl_mutex); 88 return mutex_is_locked(&rtnl_mutex);
88} 89}
90EXPORT_SYMBOL(rtnl_is_locked);
89 91
90static struct rtnl_link *rtnl_msg_handlers[NPROTO]; 92static struct rtnl_link *rtnl_msg_handlers[NPROTO];
91 93
@@ -168,7 +170,6 @@ int __rtnl_register(int protocol, int msgtype,
168 170
169 return 0; 171 return 0;
170} 172}
171
172EXPORT_SYMBOL_GPL(__rtnl_register); 173EXPORT_SYMBOL_GPL(__rtnl_register);
173 174
174/** 175/**
@@ -188,7 +189,6 @@ void rtnl_register(int protocol, int msgtype,
188 "protocol = %d, message type = %d\n", 189 "protocol = %d, message type = %d\n",
189 protocol, msgtype); 190 protocol, msgtype);
190} 191}
191
192EXPORT_SYMBOL_GPL(rtnl_register); 192EXPORT_SYMBOL_GPL(rtnl_register);
193 193
194/** 194/**
@@ -213,7 +213,6 @@ int rtnl_unregister(int protocol, int msgtype)
213 213
214 return 0; 214 return 0;
215} 215}
216
217EXPORT_SYMBOL_GPL(rtnl_unregister); 216EXPORT_SYMBOL_GPL(rtnl_unregister);
218 217
219/** 218/**
@@ -230,7 +229,6 @@ void rtnl_unregister_all(int protocol)
230 kfree(rtnl_msg_handlers[protocol]); 229 kfree(rtnl_msg_handlers[protocol]);
231 rtnl_msg_handlers[protocol] = NULL; 230 rtnl_msg_handlers[protocol] = NULL;
232} 231}
233
234EXPORT_SYMBOL_GPL(rtnl_unregister_all); 232EXPORT_SYMBOL_GPL(rtnl_unregister_all);
235 233
236static LIST_HEAD(link_ops); 234static LIST_HEAD(link_ops);
@@ -253,7 +251,6 @@ int __rtnl_link_register(struct rtnl_link_ops *ops)
253 list_add_tail(&ops->list, &link_ops); 251 list_add_tail(&ops->list, &link_ops);
254 return 0; 252 return 0;
255} 253}
256
257EXPORT_SYMBOL_GPL(__rtnl_link_register); 254EXPORT_SYMBOL_GPL(__rtnl_link_register);
258 255
259/** 256/**
@@ -271,7 +268,6 @@ int rtnl_link_register(struct rtnl_link_ops *ops)
271 rtnl_unlock(); 268 rtnl_unlock();
272 return err; 269 return err;
273} 270}
274
275EXPORT_SYMBOL_GPL(rtnl_link_register); 271EXPORT_SYMBOL_GPL(rtnl_link_register);
276 272
277static void __rtnl_kill_links(struct net *net, struct rtnl_link_ops *ops) 273static void __rtnl_kill_links(struct net *net, struct rtnl_link_ops *ops)
@@ -309,7 +305,6 @@ void __rtnl_link_unregister(struct rtnl_link_ops *ops)
309 } 305 }
310 list_del(&ops->list); 306 list_del(&ops->list);
311} 307}
312
313EXPORT_SYMBOL_GPL(__rtnl_link_unregister); 308EXPORT_SYMBOL_GPL(__rtnl_link_unregister);
314 309
315/** 310/**
@@ -322,7 +317,6 @@ void rtnl_link_unregister(struct rtnl_link_ops *ops)
322 __rtnl_link_unregister(ops); 317 __rtnl_link_unregister(ops);
323 rtnl_unlock(); 318 rtnl_unlock();
324} 319}
325
326EXPORT_SYMBOL_GPL(rtnl_link_unregister); 320EXPORT_SYMBOL_GPL(rtnl_link_unregister);
327 321
328static const struct rtnl_link_ops *rtnl_link_ops_get(const char *kind) 322static const struct rtnl_link_ops *rtnl_link_ops_get(const char *kind)
@@ -427,12 +421,13 @@ void __rta_fill(struct sk_buff *skb, int attrtype, int attrlen, const void *data
427 struct rtattr *rta; 421 struct rtattr *rta;
428 int size = RTA_LENGTH(attrlen); 422 int size = RTA_LENGTH(attrlen);
429 423
430 rta = (struct rtattr*)skb_put(skb, RTA_ALIGN(size)); 424 rta = (struct rtattr *)skb_put(skb, RTA_ALIGN(size));
431 rta->rta_type = attrtype; 425 rta->rta_type = attrtype;
432 rta->rta_len = size; 426 rta->rta_len = size;
433 memcpy(RTA_DATA(rta), data, attrlen); 427 memcpy(RTA_DATA(rta), data, attrlen);
434 memset(RTA_DATA(rta) + attrlen, 0, RTA_ALIGN(size) - size); 428 memset(RTA_DATA(rta) + attrlen, 0, RTA_ALIGN(size) - size);
435} 429}
430EXPORT_SYMBOL(__rta_fill);
436 431
437int rtnetlink_send(struct sk_buff *skb, struct net *net, u32 pid, unsigned group, int echo) 432int rtnetlink_send(struct sk_buff *skb, struct net *net, u32 pid, unsigned group, int echo)
438{ 433{
@@ -454,6 +449,7 @@ int rtnl_unicast(struct sk_buff *skb, struct net *net, u32 pid)
454 449
455 return nlmsg_unicast(rtnl, skb, pid); 450 return nlmsg_unicast(rtnl, skb, pid);
456} 451}
452EXPORT_SYMBOL(rtnl_unicast);
457 453
458void rtnl_notify(struct sk_buff *skb, struct net *net, u32 pid, u32 group, 454void rtnl_notify(struct sk_buff *skb, struct net *net, u32 pid, u32 group,
459 struct nlmsghdr *nlh, gfp_t flags) 455 struct nlmsghdr *nlh, gfp_t flags)
@@ -466,6 +462,7 @@ void rtnl_notify(struct sk_buff *skb, struct net *net, u32 pid, u32 group,
466 462
467 nlmsg_notify(rtnl, skb, pid, group, report, flags); 463 nlmsg_notify(rtnl, skb, pid, group, report, flags);
468} 464}
465EXPORT_SYMBOL(rtnl_notify);
469 466
470void rtnl_set_sk_err(struct net *net, u32 group, int error) 467void rtnl_set_sk_err(struct net *net, u32 group, int error)
471{ 468{
@@ -473,6 +470,7 @@ void rtnl_set_sk_err(struct net *net, u32 group, int error)
473 470
474 netlink_set_err(rtnl, 0, group, error); 471 netlink_set_err(rtnl, 0, group, error);
475} 472}
473EXPORT_SYMBOL(rtnl_set_sk_err);
476 474
477int rtnetlink_put_metrics(struct sk_buff *skb, u32 *metrics) 475int rtnetlink_put_metrics(struct sk_buff *skb, u32 *metrics)
478{ 476{
@@ -501,6 +499,7 @@ nla_put_failure:
501 nla_nest_cancel(skb, mx); 499 nla_nest_cancel(skb, mx);
502 return -EMSGSIZE; 500 return -EMSGSIZE;
503} 501}
502EXPORT_SYMBOL(rtnetlink_put_metrics);
504 503
505int rtnl_put_cacheinfo(struct sk_buff *skb, struct dst_entry *dst, u32 id, 504int rtnl_put_cacheinfo(struct sk_buff *skb, struct dst_entry *dst, u32 id,
506 u32 ts, u32 tsage, long expires, u32 error) 505 u32 ts, u32 tsage, long expires, u32 error)
@@ -520,14 +519,13 @@ int rtnl_put_cacheinfo(struct sk_buff *skb, struct dst_entry *dst, u32 id,
520 519
521 return nla_put(skb, RTA_CACHEINFO, sizeof(ci), &ci); 520 return nla_put(skb, RTA_CACHEINFO, sizeof(ci), &ci);
522} 521}
523
524EXPORT_SYMBOL_GPL(rtnl_put_cacheinfo); 522EXPORT_SYMBOL_GPL(rtnl_put_cacheinfo);
525 523
526static void set_operstate(struct net_device *dev, unsigned char transition) 524static void set_operstate(struct net_device *dev, unsigned char transition)
527{ 525{
528 unsigned char operstate = dev->operstate; 526 unsigned char operstate = dev->operstate;
529 527
530 switch(transition) { 528 switch (transition) {
531 case IF_OPER_UP: 529 case IF_OPER_UP:
532 if ((operstate == IF_OPER_DORMANT || 530 if ((operstate == IF_OPER_DORMANT ||
533 operstate == IF_OPER_UNKNOWN) && 531 operstate == IF_OPER_UNKNOWN) &&
@@ -728,6 +726,7 @@ const struct nla_policy ifla_policy[IFLA_MAX+1] = {
728 [IFLA_NET_NS_PID] = { .type = NLA_U32 }, 726 [IFLA_NET_NS_PID] = { .type = NLA_U32 },
729 [IFLA_IFALIAS] = { .type = NLA_STRING, .len = IFALIASZ-1 }, 727 [IFLA_IFALIAS] = { .type = NLA_STRING, .len = IFALIASZ-1 },
730}; 728};
729EXPORT_SYMBOL(ifla_policy);
731 730
732static const struct nla_policy ifla_info_policy[IFLA_INFO_MAX+1] = { 731static const struct nla_policy ifla_info_policy[IFLA_INFO_MAX+1] = {
733 [IFLA_INFO_KIND] = { .type = NLA_STRING }, 732 [IFLA_INFO_KIND] = { .type = NLA_STRING },
@@ -932,7 +931,8 @@ static int rtnl_setlink(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
932 goto errout; 931 goto errout;
933 } 932 }
934 933
935 if ((err = validate_linkmsg(dev, tb)) < 0) 934 err = validate_linkmsg(dev, tb);
935 if (err < 0)
936 goto errout; 936 goto errout;
937 937
938 err = do_setlink(dev, ifm, tb, ifname, 0); 938 err = do_setlink(dev, ifm, tb, ifname, 0);
@@ -985,7 +985,8 @@ struct net_device *rtnl_create_link(struct net *net, char *ifname,
985 unsigned int real_num_queues = 1; 985 unsigned int real_num_queues = 1;
986 986
987 if (ops->get_tx_queues) { 987 if (ops->get_tx_queues) {
988 err = ops->get_tx_queues(net, tb, &num_queues, &real_num_queues); 988 err = ops->get_tx_queues(net, tb, &num_queues,
989 &real_num_queues);
989 if (err) 990 if (err)
990 goto err; 991 goto err;
991 } 992 }
@@ -1026,6 +1027,7 @@ err_free:
1026err: 1027err:
1027 return ERR_PTR(err); 1028 return ERR_PTR(err);
1028} 1029}
1030EXPORT_SYMBOL(rtnl_create_link);
1029 1031
1030static int rtnl_newlink(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg) 1032static int rtnl_newlink(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
1031{ 1033{
@@ -1059,7 +1061,8 @@ replay:
1059 else 1061 else
1060 dev = NULL; 1062 dev = NULL;
1061 1063
1062 if ((err = validate_linkmsg(dev, tb)) < 0) 1064 err = validate_linkmsg(dev, tb);
1065 if (err < 0)
1063 return err; 1066 return err;
1064 1067
1065 if (tb[IFLA_LINKINFO]) { 1068 if (tb[IFLA_LINKINFO]) {
@@ -1210,7 +1213,7 @@ static int rtnl_dump_all(struct sk_buff *skb, struct netlink_callback *cb)
1210 1213
1211 if (s_idx == 0) 1214 if (s_idx == 0)
1212 s_idx = 1; 1215 s_idx = 1;
1213 for (idx=1; idx<NPROTO; idx++) { 1216 for (idx = 1; idx < NPROTO; idx++) {
1214 int type = cb->nlh->nlmsg_type-RTM_BASE; 1217 int type = cb->nlh->nlmsg_type-RTM_BASE;
1215 if (idx < s_idx || idx == PF_PACKET) 1218 if (idx < s_idx || idx == PF_PACKET)
1216 continue; 1219 continue;
@@ -1277,7 +1280,7 @@ static int rtnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
1277 if (nlh->nlmsg_len < NLMSG_LENGTH(sizeof(struct rtgenmsg))) 1280 if (nlh->nlmsg_len < NLMSG_LENGTH(sizeof(struct rtgenmsg)))
1278 return 0; 1281 return 0;
1279 1282
1280 family = ((struct rtgenmsg*)NLMSG_DATA(nlh))->rtgen_family; 1283 family = ((struct rtgenmsg *)NLMSG_DATA(nlh))->rtgen_family;
1281 if (family >= NPROTO) 1284 if (family >= NPROTO)
1282 return -EAFNOSUPPORT; 1285 return -EAFNOSUPPORT;
1283 1286
@@ -1310,7 +1313,7 @@ static int rtnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
1310 1313
1311 if (nlh->nlmsg_len > min_len) { 1314 if (nlh->nlmsg_len > min_len) {
1312 int attrlen = nlh->nlmsg_len - NLMSG_ALIGN(min_len); 1315 int attrlen = nlh->nlmsg_len - NLMSG_ALIGN(min_len);
1313 struct rtattr *attr = (void*)nlh + NLMSG_ALIGN(min_len); 1316 struct rtattr *attr = (void *)nlh + NLMSG_ALIGN(min_len);
1314 1317
1315 while (RTA_OK(attr, attrlen)) { 1318 while (RTA_OK(attr, attrlen)) {
1316 unsigned flavor = attr->rta_type; 1319 unsigned flavor = attr->rta_type;
@@ -1416,14 +1419,3 @@ void __init rtnetlink_init(void)
1416 rtnl_register(PF_UNSPEC, RTM_GETROUTE, NULL, rtnl_dump_all); 1419 rtnl_register(PF_UNSPEC, RTM_GETROUTE, NULL, rtnl_dump_all);
1417} 1420}
1418 1421
1419EXPORT_SYMBOL(__rta_fill);
1420EXPORT_SYMBOL(rtnetlink_put_metrics);
1421EXPORT_SYMBOL(rtnl_lock);
1422EXPORT_SYMBOL(rtnl_trylock);
1423EXPORT_SYMBOL(rtnl_unlock);
1424EXPORT_SYMBOL(rtnl_is_locked);
1425EXPORT_SYMBOL(rtnl_unicast);
1426EXPORT_SYMBOL(rtnl_notify);
1427EXPORT_SYMBOL(rtnl_set_sk_err);
1428EXPORT_SYMBOL(rtnl_create_link);
1429EXPORT_SYMBOL(ifla_policy);