提交 f1f39f91 编写于 作者: S stephen hemminger 提交者: David S. Miller

l2tp: auto load type modules

It should not be necessary to do explicit module loading when
configuring L2TP. Modules should be loaded as needed instead
(as is done already with netlink and other tunnel types).

This patch adds a new module alias type and code to load
the sub module on demand.
Signed-off-by: NStephen Hemminger <stephen@networkplumber.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
上级 f37db85d
...@@ -321,4 +321,7 @@ do { \ ...@@ -321,4 +321,7 @@ do { \
#define l2tp_dbg(ptr, type, fmt, ...) \ #define l2tp_dbg(ptr, type, fmt, ...) \
l2tp_printk(ptr, type, pr_debug, fmt, ##__VA_ARGS__) l2tp_printk(ptr, type, pr_debug, fmt, ##__VA_ARGS__)
#define MODULE_ALIAS_L2TP_PWTYPE(type) \
MODULE_ALIAS("net-l2tp-type-" __stringify(type))
#endif /* _L2TP_CORE_H_ */ #endif /* _L2TP_CORE_H_ */
...@@ -358,3 +358,4 @@ MODULE_LICENSE("GPL"); ...@@ -358,3 +358,4 @@ MODULE_LICENSE("GPL");
MODULE_AUTHOR("James Chapman <jchapman@katalix.com>"); MODULE_AUTHOR("James Chapman <jchapman@katalix.com>");
MODULE_DESCRIPTION("L2TP ethernet pseudowire driver"); MODULE_DESCRIPTION("L2TP ethernet pseudowire driver");
MODULE_VERSION("1.0"); MODULE_VERSION("1.0");
MODULE_ALIAS_L2TP_PWTYPE(5);
...@@ -576,6 +576,13 @@ static int l2tp_nl_cmd_session_create(struct sk_buff *skb, struct genl_info *inf ...@@ -576,6 +576,13 @@ static int l2tp_nl_cmd_session_create(struct sk_buff *skb, struct genl_info *inf
if (info->attrs[L2TP_ATTR_MRU]) if (info->attrs[L2TP_ATTR_MRU])
cfg.mru = nla_get_u16(info->attrs[L2TP_ATTR_MRU]); cfg.mru = nla_get_u16(info->attrs[L2TP_ATTR_MRU]);
#ifdef CONFIG_MODULES
if (l2tp_nl_cmd_ops[cfg.pw_type] == NULL) {
genl_unlock();
request_module("net-l2tp-type-%u", cfg.pw_type);
genl_lock();
}
#endif
if ((l2tp_nl_cmd_ops[cfg.pw_type] == NULL) || if ((l2tp_nl_cmd_ops[cfg.pw_type] == NULL) ||
(l2tp_nl_cmd_ops[cfg.pw_type]->session_create == NULL)) { (l2tp_nl_cmd_ops[cfg.pw_type]->session_create == NULL)) {
ret = -EPROTONOSUPPORT; ret = -EPROTONOSUPPORT;
......
...@@ -1863,3 +1863,4 @@ MODULE_DESCRIPTION("PPP over L2TP over UDP"); ...@@ -1863,3 +1863,4 @@ MODULE_DESCRIPTION("PPP over L2TP over UDP");
MODULE_LICENSE("GPL"); MODULE_LICENSE("GPL");
MODULE_VERSION(PPPOL2TP_DRV_VERSION); MODULE_VERSION(PPPOL2TP_DRV_VERSION);
MODULE_ALIAS("pppox-proto-" __stringify(PX_PROTO_OL2TP)); MODULE_ALIAS("pppox-proto-" __stringify(PX_PROTO_OL2TP));
MODULE_ALIAS_L2TP_PWTYPE(11);
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