149 lines
3.1 KiB
C
149 lines
3.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _NET_MRP_H
|
|
#define _NET_MRP_H
|
|
|
|
#include <linux/netdevice.h>
|
|
#include <linux/skbuff.h>
|
|
#include <linux/types.h>
|
|
|
|
#define MRP_END_MARK 0x0
|
|
|
|
struct mrp_pdu_hdr {
|
|
u8 version;
|
|
};
|
|
|
|
struct mrp_msg_hdr {
|
|
u8 attrtype;
|
|
u8 attrlen;
|
|
};
|
|
|
|
struct mrp_vecattr_hdr {
|
|
__be16 lenflags;
|
|
unsigned char firstattrvalue[];
|
|
#define MRP_VECATTR_HDR_LEN_MASK cpu_to_be16(0x1FFF)
|
|
#define MRP_VECATTR_HDR_FLAG_LA cpu_to_be16(0x2000)
|
|
};
|
|
|
|
enum mrp_vecattr_event {
|
|
MRP_VECATTR_EVENT_NEW,
|
|
MRP_VECATTR_EVENT_JOIN_IN,
|
|
MRP_VECATTR_EVENT_IN,
|
|
MRP_VECATTR_EVENT_JOIN_MT,
|
|
MRP_VECATTR_EVENT_MT,
|
|
MRP_VECATTR_EVENT_LV,
|
|
__MRP_VECATTR_EVENT_MAX
|
|
};
|
|
|
|
struct mrp_skb_cb {
|
|
struct mrp_msg_hdr *mh;
|
|
struct mrp_vecattr_hdr *vah;
|
|
unsigned char attrvalue[];
|
|
};
|
|
|
|
static inline struct mrp_skb_cb *mrp_cb(struct sk_buff *skb)
|
|
{
|
|
BUILD_BUG_ON(sizeof(struct mrp_skb_cb) >
|
|
sizeof_field(struct sk_buff, cb));
|
|
return (struct mrp_skb_cb *)skb->cb;
|
|
}
|
|
|
|
enum mrp_applicant_state {
|
|
MRP_APPLICANT_INVALID,
|
|
MRP_APPLICANT_VO,
|
|
MRP_APPLICANT_VP,
|
|
MRP_APPLICANT_VN,
|
|
MRP_APPLICANT_AN,
|
|
MRP_APPLICANT_AA,
|
|
MRP_APPLICANT_QA,
|
|
MRP_APPLICANT_LA,
|
|
MRP_APPLICANT_AO,
|
|
MRP_APPLICANT_QO,
|
|
MRP_APPLICANT_AP,
|
|
MRP_APPLICANT_QP,
|
|
__MRP_APPLICANT_MAX
|
|
};
|
|
#define MRP_APPLICANT_MAX (__MRP_APPLICANT_MAX - 1)
|
|
|
|
enum mrp_event {
|
|
MRP_EVENT_NEW,
|
|
MRP_EVENT_JOIN,
|
|
MRP_EVENT_LV,
|
|
MRP_EVENT_TX,
|
|
MRP_EVENT_R_NEW,
|
|
MRP_EVENT_R_JOIN_IN,
|
|
MRP_EVENT_R_IN,
|
|
MRP_EVENT_R_JOIN_MT,
|
|
MRP_EVENT_R_MT,
|
|
MRP_EVENT_R_LV,
|
|
MRP_EVENT_R_LA,
|
|
MRP_EVENT_REDECLARE,
|
|
MRP_EVENT_PERIODIC,
|
|
__MRP_EVENT_MAX
|
|
};
|
|
#define MRP_EVENT_MAX (__MRP_EVENT_MAX - 1)
|
|
|
|
enum mrp_tx_action {
|
|
MRP_TX_ACTION_NONE,
|
|
MRP_TX_ACTION_S_NEW,
|
|
MRP_TX_ACTION_S_JOIN_IN,
|
|
MRP_TX_ACTION_S_JOIN_IN_OPTIONAL,
|
|
MRP_TX_ACTION_S_IN_OPTIONAL,
|
|
MRP_TX_ACTION_S_LV,
|
|
};
|
|
|
|
struct mrp_attr {
|
|
struct rb_node node;
|
|
enum mrp_applicant_state state;
|
|
u8 type;
|
|
u8 len;
|
|
unsigned char value[];
|
|
};
|
|
|
|
enum mrp_applications {
|
|
MRP_APPLICATION_MVRP,
|
|
__MRP_APPLICATION_MAX
|
|
};
|
|
#define MRP_APPLICATION_MAX (__MRP_APPLICATION_MAX - 1)
|
|
|
|
struct mrp_application {
|
|
enum mrp_applications type;
|
|
unsigned int maxattr;
|
|
struct packet_type pkttype;
|
|
unsigned char group_address[ETH_ALEN];
|
|
u8 version;
|
|
};
|
|
|
|
struct mrp_applicant {
|
|
struct mrp_application *app;
|
|
struct net_device *dev;
|
|
struct timer_list join_timer;
|
|
struct timer_list periodic_timer;
|
|
|
|
spinlock_t lock;
|
|
struct sk_buff_head queue;
|
|
struct sk_buff *pdu;
|
|
struct rb_root mad;
|
|
struct rcu_head rcu;
|
|
bool active;
|
|
};
|
|
|
|
struct mrp_port {
|
|
struct mrp_applicant __rcu *applicants[MRP_APPLICATION_MAX + 1];
|
|
struct rcu_head rcu;
|
|
};
|
|
|
|
int mrp_register_application(struct mrp_application *app);
|
|
void mrp_unregister_application(struct mrp_application *app);
|
|
|
|
int mrp_init_applicant(struct net_device *dev, struct mrp_application *app);
|
|
void mrp_uninit_applicant(struct net_device *dev, struct mrp_application *app);
|
|
|
|
int mrp_request_join(const struct net_device *dev,
|
|
const struct mrp_application *app,
|
|
const void *value, u8 len, u8 type);
|
|
void mrp_request_leave(const struct net_device *dev,
|
|
const struct mrp_application *app,
|
|
const void *value, u8 len, u8 type);
|
|
|
|
#endif /* _NET_MRP_H */
|