| Patrick McHardy | eca9eba | 2008-07-05 21:26:13 -0700 | [diff] [blame] | 1 | #ifndef _NET_GARP_H |
| 2 | #define _NET_GARP_H |
| 3 | |
| 4 | #include <net/stp.h> |
| 5 | |
| 6 | #define GARP_PROTOCOL_ID 0x1 |
| 7 | #define GARP_END_MARK 0x0 |
| 8 | |
| 9 | struct garp_pdu_hdr { |
| 10 | __be16 protocol; |
| 11 | }; |
| 12 | |
| 13 | struct garp_msg_hdr { |
| 14 | u8 attrtype; |
| 15 | }; |
| 16 | |
| 17 | enum garp_attr_event { |
| 18 | GARP_LEAVE_ALL, |
| 19 | GARP_JOIN_EMPTY, |
| 20 | GARP_JOIN_IN, |
| 21 | GARP_LEAVE_EMPTY, |
| 22 | GARP_LEAVE_IN, |
| 23 | GARP_EMPTY, |
| 24 | }; |
| 25 | |
| 26 | struct garp_attr_hdr { |
| 27 | u8 len; |
| 28 | u8 event; |
| 29 | u8 data[]; |
| 30 | }; |
| 31 | |
| 32 | struct garp_skb_cb { |
| 33 | u8 cur_type; |
| 34 | }; |
| 35 | |
| 36 | static inline struct garp_skb_cb *garp_cb(struct sk_buff *skb) |
| 37 | { |
| 38 | BUILD_BUG_ON(sizeof(struct garp_skb_cb) > |
| 39 | FIELD_SIZEOF(struct sk_buff, cb)); |
| 40 | return (struct garp_skb_cb *)skb->cb; |
| 41 | } |
| 42 | |
| 43 | enum garp_applicant_state { |
| 44 | GARP_APPLICANT_INVALID, |
| 45 | GARP_APPLICANT_VA, |
| 46 | GARP_APPLICANT_AA, |
| 47 | GARP_APPLICANT_QA, |
| 48 | GARP_APPLICANT_LA, |
| 49 | GARP_APPLICANT_VP, |
| 50 | GARP_APPLICANT_AP, |
| 51 | GARP_APPLICANT_QP, |
| 52 | GARP_APPLICANT_VO, |
| 53 | GARP_APPLICANT_AO, |
| 54 | GARP_APPLICANT_QO, |
| 55 | __GARP_APPLICANT_MAX |
| 56 | }; |
| 57 | #define GARP_APPLICANT_MAX (__GARP_APPLICANT_MAX - 1) |
| 58 | |
| 59 | enum garp_event { |
| 60 | GARP_EVENT_REQ_JOIN, |
| 61 | GARP_EVENT_REQ_LEAVE, |
| 62 | GARP_EVENT_R_JOIN_IN, |
| 63 | GARP_EVENT_R_JOIN_EMPTY, |
| 64 | GARP_EVENT_R_EMPTY, |
| 65 | GARP_EVENT_R_LEAVE_IN, |
| 66 | GARP_EVENT_R_LEAVE_EMPTY, |
| 67 | GARP_EVENT_TRANSMIT_PDU, |
| 68 | __GARP_EVENT_MAX |
| 69 | }; |
| 70 | #define GARP_EVENT_MAX (__GARP_EVENT_MAX - 1) |
| 71 | |
| 72 | enum garp_action { |
| 73 | GARP_ACTION_NONE, |
| 74 | GARP_ACTION_S_JOIN_IN, |
| 75 | GARP_ACTION_S_LEAVE_EMPTY, |
| 76 | }; |
| 77 | |
| 78 | struct garp_attr { |
| 79 | struct rb_node node; |
| 80 | enum garp_applicant_state state; |
| 81 | u8 type; |
| 82 | u8 dlen; |
| 83 | unsigned char data[]; |
| 84 | }; |
| 85 | |
| 86 | enum garp_applications { |
| Patrick McHardy | 70c03b4 | 2008-07-05 21:26:57 -0700 | [diff] [blame] | 87 | GARP_APPLICATION_GVRP, |
| Patrick McHardy | eca9eba | 2008-07-05 21:26:13 -0700 | [diff] [blame] | 88 | __GARP_APPLICATION_MAX |
| 89 | }; |
| 90 | #define GARP_APPLICATION_MAX (__GARP_APPLICATION_MAX - 1) |
| 91 | |
| 92 | struct garp_application { |
| 93 | enum garp_applications type; |
| 94 | unsigned int maxattr; |
| 95 | struct stp_proto proto; |
| 96 | }; |
| 97 | |
| 98 | struct garp_applicant { |
| 99 | struct garp_application *app; |
| 100 | struct net_device *dev; |
| 101 | struct timer_list join_timer; |
| 102 | |
| 103 | spinlock_t lock; |
| 104 | struct sk_buff_head queue; |
| 105 | struct sk_buff *pdu; |
| 106 | struct rb_root gid; |
| 107 | }; |
| 108 | |
| 109 | struct garp_port { |
| 110 | struct garp_applicant *applicants[GARP_APPLICATION_MAX + 1]; |
| 111 | }; |
| 112 | |
| 113 | extern int garp_register_application(struct garp_application *app); |
| 114 | extern void garp_unregister_application(struct garp_application *app); |
| 115 | |
| 116 | extern int garp_init_applicant(struct net_device *dev, |
| 117 | struct garp_application *app); |
| 118 | extern void garp_uninit_applicant(struct net_device *dev, |
| 119 | struct garp_application *app); |
| 120 | |
| 121 | extern int garp_request_join(const struct net_device *dev, |
| 122 | const struct garp_application *app, |
| 123 | const void *data, u8 len, u8 type); |
| 124 | extern void garp_request_leave(const struct net_device *dev, |
| 125 | const struct garp_application *app, |
| 126 | const void *data, u8 len, u8 type); |
| 127 | |
| 128 | #endif /* _NET_GARP_H */ |