diff options
| -rw-r--r-- | include/net/rtnetlink.h | 17 | ||||
| -rw-r--r-- | net/core/rtnetlink.c | 29 |
2 files changed, 46 insertions, 0 deletions
diff --git a/include/net/rtnetlink.h b/include/net/rtnetlink.h index 9f881b74f32e..fdc7b4ce0ef7 100644 --- a/include/net/rtnetlink.h +++ b/include/net/rtnetlink.h @@ -27,6 +27,15 @@ static inline enum rtnl_kinds rtnl_msgtype_kind(int msgtype) return msgtype & RTNL_KIND_MASK; } +struct rtnl_msg_handler { + struct module *owner; + int protocol; + int msgtype; + rtnl_doit_func doit; + rtnl_dumpit_func dumpit; + int flags; +}; + void rtnl_register(int protocol, int msgtype, rtnl_doit_func, rtnl_dumpit_func, unsigned int flags); int rtnl_register_module(struct module *owner, int protocol, int msgtype, @@ -34,6 +43,14 @@ int rtnl_register_module(struct module *owner, int protocol, int msgtype, int rtnl_unregister(int protocol, int msgtype); void rtnl_unregister_all(int protocol); +int __rtnl_register_many(const struct rtnl_msg_handler *handlers, int n); +void __rtnl_unregister_many(const struct rtnl_msg_handler *handlers, int n); + +#define rtnl_register_many(handlers) \ + __rtnl_register_many(handlers, ARRAY_SIZE(handlers)) +#define rtnl_unregister_many(handlers) \ + __rtnl_unregister_many(handlers, ARRAY_SIZE(handlers)) + static inline int rtnl_msg_family(const struct nlmsghdr *nlh) { if (nlmsg_len(nlh) >= sizeof(struct rtgenmsg)) diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index be663a7382ce..afb52254a47e 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -385,6 +385,35 @@ void rtnl_unregister_all(int protocol) } EXPORT_SYMBOL_GPL(rtnl_unregister_all); +int __rtnl_register_many(const struct rtnl_msg_handler *handlers, int n) +{ + const struct rtnl_msg_handler *handler; + int i, err; + + for (i = 0, handler = handlers; i < n; i++, handler++) { + err = rtnl_register_internal(handler->owner, handler->protocol, + handler->msgtype, handler->doit, + handler->dumpit, handler->flags); + if (err) { + __rtnl_unregister_many(handlers, i); + break; + } + } + + return err; +} +EXPORT_SYMBOL_GPL(__rtnl_register_many); + +void __rtnl_unregister_many(const struct rtnl_msg_handler *handlers, int n) +{ + const struct rtnl_msg_handler *handler; + int i; + + for (i = n - 1, handler = handlers + n - 1; i >= 0; i--, handler--) + rtnl_unregister(handler->protocol, handler->msgtype); +} +EXPORT_SYMBOL_GPL(__rtnl_unregister_many); + static LIST_HEAD(link_ops); static const struct rtnl_link_ops *rtnl_link_ops_get(const char *kind) |