2008f21cbd
There are a mix of function prototypes with and without extern in the kernel sources. Standardize on not using extern for function prototypes. Function prototypes don't need to be written with extern. extern is assumed by the compiler. Its use is as unnecessary as using auto to declare automatic/local variables in a block. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
130 lines
2.6 KiB
C
130 lines
2.6 KiB
C
#ifndef _NET_GARP_H
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#define _NET_GARP_H
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#include <net/stp.h>
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#define GARP_PROTOCOL_ID 0x1
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#define GARP_END_MARK 0x0
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struct garp_pdu_hdr {
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__be16 protocol;
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};
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struct garp_msg_hdr {
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u8 attrtype;
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};
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enum garp_attr_event {
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GARP_LEAVE_ALL,
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GARP_JOIN_EMPTY,
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GARP_JOIN_IN,
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GARP_LEAVE_EMPTY,
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GARP_LEAVE_IN,
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GARP_EMPTY,
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};
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struct garp_attr_hdr {
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u8 len;
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u8 event;
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u8 data[];
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};
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struct garp_skb_cb {
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u8 cur_type;
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};
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static inline struct garp_skb_cb *garp_cb(struct sk_buff *skb)
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{
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BUILD_BUG_ON(sizeof(struct garp_skb_cb) >
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FIELD_SIZEOF(struct sk_buff, cb));
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return (struct garp_skb_cb *)skb->cb;
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}
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enum garp_applicant_state {
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GARP_APPLICANT_INVALID,
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GARP_APPLICANT_VA,
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GARP_APPLICANT_AA,
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GARP_APPLICANT_QA,
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GARP_APPLICANT_LA,
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GARP_APPLICANT_VP,
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GARP_APPLICANT_AP,
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GARP_APPLICANT_QP,
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GARP_APPLICANT_VO,
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GARP_APPLICANT_AO,
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GARP_APPLICANT_QO,
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__GARP_APPLICANT_MAX
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};
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#define GARP_APPLICANT_MAX (__GARP_APPLICANT_MAX - 1)
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enum garp_event {
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GARP_EVENT_REQ_JOIN,
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GARP_EVENT_REQ_LEAVE,
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GARP_EVENT_R_JOIN_IN,
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GARP_EVENT_R_JOIN_EMPTY,
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GARP_EVENT_R_EMPTY,
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GARP_EVENT_R_LEAVE_IN,
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GARP_EVENT_R_LEAVE_EMPTY,
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GARP_EVENT_TRANSMIT_PDU,
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__GARP_EVENT_MAX
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};
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#define GARP_EVENT_MAX (__GARP_EVENT_MAX - 1)
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enum garp_action {
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GARP_ACTION_NONE,
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GARP_ACTION_S_JOIN_IN,
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GARP_ACTION_S_LEAVE_EMPTY,
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};
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struct garp_attr {
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struct rb_node node;
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enum garp_applicant_state state;
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u8 type;
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u8 dlen;
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unsigned char data[];
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};
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enum garp_applications {
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GARP_APPLICATION_GVRP,
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__GARP_APPLICATION_MAX
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};
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#define GARP_APPLICATION_MAX (__GARP_APPLICATION_MAX - 1)
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struct garp_application {
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enum garp_applications type;
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unsigned int maxattr;
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struct stp_proto proto;
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};
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struct garp_applicant {
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struct garp_application *app;
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struct net_device *dev;
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struct timer_list join_timer;
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spinlock_t lock;
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struct sk_buff_head queue;
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struct sk_buff *pdu;
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struct rb_root gid;
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struct rcu_head rcu;
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};
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struct garp_port {
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struct garp_applicant __rcu *applicants[GARP_APPLICATION_MAX + 1];
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struct rcu_head rcu;
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};
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int garp_register_application(struct garp_application *app);
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void garp_unregister_application(struct garp_application *app);
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int garp_init_applicant(struct net_device *dev, struct garp_application *app);
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void garp_uninit_applicant(struct net_device *dev,
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struct garp_application *app);
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int garp_request_join(const struct net_device *dev,
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const struct garp_application *app, const void *data,
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u8 len, u8 type);
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void garp_request_leave(const struct net_device *dev,
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const struct garp_application *app,
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const void *data, u8 len, u8 type);
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#endif /* _NET_GARP_H */
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