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130 lines
2.6 KiB
130 lines
2.6 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#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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sizeof_field(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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