a5be1eb648
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>
142 lines
3 KiB
C
142 lines
3 KiB
C
#ifndef _NET_MRP_H
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#define _NET_MRP_H
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#define MRP_END_MARK 0x0
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struct mrp_pdu_hdr {
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u8 version;
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};
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struct mrp_msg_hdr {
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u8 attrtype;
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u8 attrlen;
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};
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struct mrp_vecattr_hdr {
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__be16 lenflags;
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unsigned char firstattrvalue[];
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#define MRP_VECATTR_HDR_LEN_MASK cpu_to_be16(0x1FFF)
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#define MRP_VECATTR_HDR_FLAG_LA cpu_to_be16(0x2000)
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};
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enum mrp_vecattr_event {
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MRP_VECATTR_EVENT_NEW,
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MRP_VECATTR_EVENT_JOIN_IN,
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MRP_VECATTR_EVENT_IN,
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MRP_VECATTR_EVENT_JOIN_MT,
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MRP_VECATTR_EVENT_MT,
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MRP_VECATTR_EVENT_LV,
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__MRP_VECATTR_EVENT_MAX
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};
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struct mrp_skb_cb {
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struct mrp_msg_hdr *mh;
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struct mrp_vecattr_hdr *vah;
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unsigned char attrvalue[];
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};
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static inline struct mrp_skb_cb *mrp_cb(struct sk_buff *skb)
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{
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BUILD_BUG_ON(sizeof(struct mrp_skb_cb) >
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FIELD_SIZEOF(struct sk_buff, cb));
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return (struct mrp_skb_cb *)skb->cb;
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}
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enum mrp_applicant_state {
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MRP_APPLICANT_INVALID,
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MRP_APPLICANT_VO,
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MRP_APPLICANT_VP,
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MRP_APPLICANT_VN,
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MRP_APPLICANT_AN,
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MRP_APPLICANT_AA,
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MRP_APPLICANT_QA,
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MRP_APPLICANT_LA,
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MRP_APPLICANT_AO,
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MRP_APPLICANT_QO,
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MRP_APPLICANT_AP,
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MRP_APPLICANT_QP,
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__MRP_APPLICANT_MAX
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};
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#define MRP_APPLICANT_MAX (__MRP_APPLICANT_MAX - 1)
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enum mrp_event {
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MRP_EVENT_NEW,
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MRP_EVENT_JOIN,
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MRP_EVENT_LV,
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MRP_EVENT_TX,
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MRP_EVENT_R_NEW,
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MRP_EVENT_R_JOIN_IN,
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MRP_EVENT_R_IN,
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MRP_EVENT_R_JOIN_MT,
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MRP_EVENT_R_MT,
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MRP_EVENT_R_LV,
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MRP_EVENT_R_LA,
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MRP_EVENT_REDECLARE,
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MRP_EVENT_PERIODIC,
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__MRP_EVENT_MAX
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};
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#define MRP_EVENT_MAX (__MRP_EVENT_MAX - 1)
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enum mrp_tx_action {
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MRP_TX_ACTION_NONE,
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MRP_TX_ACTION_S_NEW,
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MRP_TX_ACTION_S_JOIN_IN,
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MRP_TX_ACTION_S_JOIN_IN_OPTIONAL,
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MRP_TX_ACTION_S_IN_OPTIONAL,
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MRP_TX_ACTION_S_LV,
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};
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struct mrp_attr {
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struct rb_node node;
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enum mrp_applicant_state state;
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u8 type;
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u8 len;
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unsigned char value[];
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};
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enum mrp_applications {
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MRP_APPLICATION_MVRP,
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__MRP_APPLICATION_MAX
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};
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#define MRP_APPLICATION_MAX (__MRP_APPLICATION_MAX - 1)
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struct mrp_application {
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enum mrp_applications type;
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unsigned int maxattr;
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struct packet_type pkttype;
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unsigned char group_address[ETH_ALEN];
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u8 version;
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};
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struct mrp_applicant {
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struct mrp_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 mad;
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struct rcu_head rcu;
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};
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struct mrp_port {
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struct mrp_applicant __rcu *applicants[MRP_APPLICATION_MAX + 1];
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struct rcu_head rcu;
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};
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int mrp_register_application(struct mrp_application *app);
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void mrp_unregister_application(struct mrp_application *app);
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int mrp_init_applicant(struct net_device *dev, struct mrp_application *app);
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void mrp_uninit_applicant(struct net_device *dev, struct mrp_application *app);
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int mrp_request_join(const struct net_device *dev,
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const struct mrp_application *app,
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const void *value, u8 len, u8 type);
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void mrp_request_leave(const struct net_device *dev,
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const struct mrp_application *app,
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const void *value, u8 len, u8 type);
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#endif /* _NET_MRP_H */
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