^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) #ifndef _NET_DN_FIB_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) #define _NET_DN_FIB_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) #include <linux/netlink.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #include <linux/refcount.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) extern const struct nla_policy rtm_dn_policy[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) struct dn_fib_res {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) struct fib_rule *r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) struct dn_fib_info *fi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) unsigned char prefixlen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) unsigned char nh_sel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) unsigned char type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) unsigned char scope;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) struct dn_fib_nh {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) struct net_device *nh_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) unsigned int nh_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) unsigned char nh_scope;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) int nh_weight;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) int nh_power;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) int nh_oif;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) __le16 nh_gw;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) struct dn_fib_info {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) struct dn_fib_info *fib_next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) struct dn_fib_info *fib_prev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) int fib_treeref;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) refcount_t fib_clntref;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) int fib_dead;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) unsigned int fib_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) int fib_protocol;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) __le16 fib_prefsrc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) __u32 fib_priority;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) __u32 fib_metrics[RTAX_MAX];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) int fib_nhs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) int fib_power;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) struct dn_fib_nh fib_nh[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #define dn_fib_dev fib_nh[0].nh_dev
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #define DN_FIB_RES_RESET(res) ((res).nh_sel = 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) #define DN_FIB_RES_NH(res) ((res).fi->fib_nh[(res).nh_sel])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) #define DN_FIB_RES_PREFSRC(res) ((res).fi->fib_prefsrc ? : __dn_fib_res_prefsrc(&res))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) #define DN_FIB_RES_GW(res) (DN_FIB_RES_NH(res).nh_gw)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) #define DN_FIB_RES_DEV(res) (DN_FIB_RES_NH(res).nh_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) #define DN_FIB_RES_OIF(res) (DN_FIB_RES_NH(res).nh_oif)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) typedef struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) __le16 datum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) } dn_fib_key_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) typedef struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) __le16 datum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) } dn_fib_hash_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) typedef struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) __u16 datum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) } dn_fib_idx_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) struct dn_fib_node {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) struct dn_fib_node *fn_next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) struct dn_fib_info *fn_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) #define DN_FIB_INFO(f) ((f)->fn_info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) dn_fib_key_t fn_key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) u8 fn_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) u8 fn_scope;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) u8 fn_state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) struct dn_fib_table {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) struct hlist_node hlist;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) u32 n;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) int (*insert)(struct dn_fib_table *t, struct rtmsg *r,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) struct nlattr *attrs[], struct nlmsghdr *n,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) struct netlink_skb_parms *req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) int (*delete)(struct dn_fib_table *t, struct rtmsg *r,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) struct nlattr *attrs[], struct nlmsghdr *n,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) struct netlink_skb_parms *req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) int (*lookup)(struct dn_fib_table *t, const struct flowidn *fld,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) struct dn_fib_res *res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) int (*flush)(struct dn_fib_table *t);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) int (*dump)(struct dn_fib_table *t, struct sk_buff *skb, struct netlink_callback *cb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) unsigned char data[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) #ifdef CONFIG_DECNET_ROUTER
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) * dn_fib.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) void dn_fib_init(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) void dn_fib_cleanup(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) int dn_fib_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) struct dn_fib_info *dn_fib_create_info(const struct rtmsg *r,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) struct nlattr *attrs[],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) const struct nlmsghdr *nlh, int *errp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) int dn_fib_semantic_match(int type, struct dn_fib_info *fi,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) const struct flowidn *fld, struct dn_fib_res *res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) void dn_fib_release_info(struct dn_fib_info *fi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) void dn_fib_flush(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) void dn_fib_select_multipath(const struct flowidn *fld, struct dn_fib_res *res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) * dn_tables.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) struct dn_fib_table *dn_fib_get_table(u32 n, int creat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) struct dn_fib_table *dn_fib_empty_table(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) void dn_fib_table_init(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) void dn_fib_table_cleanup(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) * dn_rules.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) void dn_fib_rules_init(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) void dn_fib_rules_cleanup(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) unsigned int dnet_addr_type(__le16 addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) int dn_fib_lookup(struct flowidn *fld, struct dn_fib_res *res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) int dn_fib_dump(struct sk_buff *skb, struct netlink_callback *cb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) void dn_fib_free_info(struct dn_fib_info *fi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) static inline void dn_fib_info_put(struct dn_fib_info *fi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) if (refcount_dec_and_test(&fi->fib_clntref))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) dn_fib_free_info(fi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) static inline void dn_fib_res_put(struct dn_fib_res *res)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) if (res->fi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) dn_fib_info_put(res->fi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) if (res->r)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) fib_rule_put(res->r);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) #else /* Endnode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) #define dn_fib_init() do { } while(0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) #define dn_fib_cleanup() do { } while(0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) #define dn_fib_lookup(fl, res) (-ESRCH)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) #define dn_fib_info_put(fi) do { } while(0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) #define dn_fib_select_multipath(fl, res) do { } while(0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) #define dn_fib_rules_policy(saddr,res,flags) (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) #define dn_fib_res_put(res) do { } while(0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) #endif /* CONFIG_DECNET_ROUTER */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) static inline __le16 dnet_make_mask(int n)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) if (n)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) return cpu_to_le16(~((1 << (16 - n)) - 1));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) return cpu_to_le16(0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) #endif /* _NET_DN_FIB_H */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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