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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /include/net/dn_fib.h
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'include/net/dn_fib.h')
-rw-r--r--include/net/dn_fib.h184
1 files changed, 184 insertions, 0 deletions
diff --git a/include/net/dn_fib.h b/include/net/dn_fib.h
new file mode 100644
index 00000000..782ef7cb
--- /dev/null
+++ b/include/net/dn_fib.h
@@ -0,0 +1,184 @@
+#ifndef _NET_DN_FIB_H
+#define _NET_DN_FIB_H
+
+/* WARNING: The ordering of these elements must match ordering
+ * of RTA_* rtnetlink attribute numbers.
+ */
+struct dn_kern_rta {
+ void *rta_dst;
+ void *rta_src;
+ int *rta_iif;
+ int *rta_oif;
+ void *rta_gw;
+ u32 *rta_priority;
+ void *rta_prefsrc;
+ struct rtattr *rta_mx;
+ struct rtattr *rta_mp;
+ unsigned char *rta_protoinfo;
+ u32 *rta_flow;
+ struct rta_cacheinfo *rta_ci;
+ struct rta_session *rta_sess;
+};
+
+struct dn_fib_res {
+ struct fib_rule *r;
+ struct dn_fib_info *fi;
+ unsigned char prefixlen;
+ unsigned char nh_sel;
+ unsigned char type;
+ unsigned char scope;
+};
+
+struct dn_fib_nh {
+ struct net_device *nh_dev;
+ unsigned nh_flags;
+ unsigned char nh_scope;
+ int nh_weight;
+ int nh_power;
+ int nh_oif;
+ __le16 nh_gw;
+};
+
+struct dn_fib_info {
+ struct dn_fib_info *fib_next;
+ struct dn_fib_info *fib_prev;
+ int fib_treeref;
+ atomic_t fib_clntref;
+ int fib_dead;
+ unsigned fib_flags;
+ int fib_protocol;
+ __le16 fib_prefsrc;
+ __u32 fib_priority;
+ __u32 fib_metrics[RTAX_MAX];
+ int fib_nhs;
+ int fib_power;
+ struct dn_fib_nh fib_nh[0];
+#define dn_fib_dev fib_nh[0].nh_dev
+};
+
+
+#define DN_FIB_RES_RESET(res) ((res).nh_sel = 0)
+#define DN_FIB_RES_NH(res) ((res).fi->fib_nh[(res).nh_sel])
+
+#define DN_FIB_RES_PREFSRC(res) ((res).fi->fib_prefsrc ? : __dn_fib_res_prefsrc(&res))
+#define DN_FIB_RES_GW(res) (DN_FIB_RES_NH(res).nh_gw)
+#define DN_FIB_RES_DEV(res) (DN_FIB_RES_NH(res).nh_dev)
+#define DN_FIB_RES_OIF(res) (DN_FIB_RES_NH(res).nh_oif)
+
+typedef struct {
+ __le16 datum;
+} dn_fib_key_t;
+
+typedef struct {
+ __le16 datum;
+} dn_fib_hash_t;
+
+typedef struct {
+ __u16 datum;
+} dn_fib_idx_t;
+
+struct dn_fib_node {
+ struct dn_fib_node *fn_next;
+ struct dn_fib_info *fn_info;
+#define DN_FIB_INFO(f) ((f)->fn_info)
+ dn_fib_key_t fn_key;
+ u8 fn_type;
+ u8 fn_scope;
+ u8 fn_state;
+};
+
+
+struct dn_fib_table {
+ struct hlist_node hlist;
+ u32 n;
+
+ int (*insert)(struct dn_fib_table *t, struct rtmsg *r,
+ struct dn_kern_rta *rta, struct nlmsghdr *n,
+ struct netlink_skb_parms *req);
+ int (*delete)(struct dn_fib_table *t, struct rtmsg *r,
+ struct dn_kern_rta *rta, struct nlmsghdr *n,
+ struct netlink_skb_parms *req);
+ int (*lookup)(struct dn_fib_table *t, const struct flowidn *fld,
+ struct dn_fib_res *res);
+ int (*flush)(struct dn_fib_table *t);
+ int (*dump)(struct dn_fib_table *t, struct sk_buff *skb, struct netlink_callback *cb);
+
+ unsigned char data[0];
+};
+
+#ifdef CONFIG_DECNET_ROUTER
+/*
+ * dn_fib.c
+ */
+extern void dn_fib_init(void);
+extern void dn_fib_cleanup(void);
+
+extern int dn_fib_ioctl(struct socket *sock, unsigned int cmd,
+ unsigned long arg);
+extern struct dn_fib_info *dn_fib_create_info(const struct rtmsg *r,
+ struct dn_kern_rta *rta,
+ const struct nlmsghdr *nlh, int *errp);
+extern int dn_fib_semantic_match(int type, struct dn_fib_info *fi,
+ const struct flowidn *fld,
+ struct dn_fib_res *res);
+extern void dn_fib_release_info(struct dn_fib_info *fi);
+extern __le16 dn_fib_get_attr16(struct rtattr *attr, int attrlen, int type);
+extern void dn_fib_flush(void);
+extern void dn_fib_select_multipath(const struct flowidn *fld,
+ struct dn_fib_res *res);
+
+/*
+ * dn_tables.c
+ */
+extern struct dn_fib_table *dn_fib_get_table(u32 n, int creat);
+extern struct dn_fib_table *dn_fib_empty_table(void);
+extern void dn_fib_table_init(void);
+extern void dn_fib_table_cleanup(void);
+
+/*
+ * dn_rules.c
+ */
+extern void dn_fib_rules_init(void);
+extern void dn_fib_rules_cleanup(void);
+extern unsigned dnet_addr_type(__le16 addr);
+extern int dn_fib_lookup(struct flowidn *fld, struct dn_fib_res *res);
+
+extern int dn_fib_dump(struct sk_buff *skb, struct netlink_callback *cb);
+
+extern void dn_fib_free_info(struct dn_fib_info *fi);
+
+static inline void dn_fib_info_put(struct dn_fib_info *fi)
+{
+ if (atomic_dec_and_test(&fi->fib_clntref))
+ dn_fib_free_info(fi);
+}
+
+static inline void dn_fib_res_put(struct dn_fib_res *res)
+{
+ if (res->fi)
+ dn_fib_info_put(res->fi);
+ if (res->r)
+ fib_rule_put(res->r);
+}
+
+#else /* Endnode */
+
+#define dn_fib_init() do { } while(0)
+#define dn_fib_cleanup() do { } while(0)
+
+#define dn_fib_lookup(fl, res) (-ESRCH)
+#define dn_fib_info_put(fi) do { } while(0)
+#define dn_fib_select_multipath(fl, res) do { } while(0)
+#define dn_fib_rules_policy(saddr,res,flags) (0)
+#define dn_fib_res_put(res) do { } while(0)
+
+#endif /* CONFIG_DECNET_ROUTER */
+
+static inline __le16 dnet_make_mask(int n)
+{
+ if (n)
+ return cpu_to_le16(~((1 << (16 - n)) - 1));
+ return cpu_to_le16(0);
+}
+
+#endif /* _NET_DN_FIB_H */