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Diffstat (limited to 'include/net/ip6_fib.h')
-rw-r--r--include/net/ip6_fib.h153
1 files changed, 114 insertions, 39 deletions
diff --git a/include/net/ip6_fib.h b/include/net/ip6_fib.h
index 708ff7cb880..9bcb220bd4a 100644
--- a/include/net/ip6_fib.h
+++ b/include/net/ip6_fib.h
@@ -13,8 +13,6 @@
#ifndef _IP6_FIB_H
#define _IP6_FIB_H
-#ifdef __KERNEL__
-
#include <linux/ipv6_route.h>
#include <linux/rtnetlink.h>
#include <linux/spinlock.h>
@@ -39,14 +37,18 @@ struct fib6_config {
int fc_ifindex;
u32 fc_flags;
u32 fc_protocol;
+ u32 fc_type; /* only 8 bits are used */
struct in6_addr fc_dst;
struct in6_addr fc_src;
+ struct in6_addr fc_prefsrc;
struct in6_addr fc_gateway;
unsigned long fc_expires;
struct nlattr *fc_mx;
int fc_mx_len;
+ int fc_mp_len;
+ struct nlattr *fc_mp;
struct nl_info fc_nlinfo;
};
@@ -87,10 +89,6 @@ struct fib6_table;
struct rt6_info {
struct dst_entry dst;
-#define rt6i_dev dst.dev
-#define rt6i_nexthop dst.neighbour
-#define rt6i_expires dst.expires
-
/*
* Tail elements of dst_entry (__refcnt etc.)
* and these elements (rarely used in hot path) are in
@@ -101,31 +99,112 @@ struct rt6_info {
struct in6_addr rt6i_gateway;
+ /* Multipath routes:
+ * siblings is a list of rt6_info that have the the same metric/weight,
+ * destination, but not the same gateway. nsiblings is just a cache
+ * to speed up lookup.
+ */
+ struct list_head rt6i_siblings;
+ unsigned int rt6i_nsiblings;
+
atomic_t rt6i_ref;
/* These are in a separate cache line. */
struct rt6key rt6i_dst ____cacheline_aligned_in_smp;
u32 rt6i_flags;
struct rt6key rt6i_src;
+ struct rt6key rt6i_prefsrc;
u32 rt6i_metric;
struct inet6_dev *rt6i_idev;
- struct inet_peer *rt6i_peer;
+ unsigned long _rt6i_peer;
+
+ u32 rt6i_genid;
-#ifdef CONFIG_XFRM
- u32 rt6i_flow_cache_genid;
-#endif
/* more non-fragment space at head required */
unsigned short rt6i_nfheader_len;
u8 rt6i_protocol;
};
+static inline struct inet_peer *rt6_peer_ptr(struct rt6_info *rt)
+{
+ return inetpeer_ptr(rt->_rt6i_peer);
+}
+
+static inline bool rt6_has_peer(struct rt6_info *rt)
+{
+ return inetpeer_ptr_is_peer(rt->_rt6i_peer);
+}
+
+static inline void __rt6_set_peer(struct rt6_info *rt, struct inet_peer *peer)
+{
+ __inetpeer_ptr_set_peer(&rt->_rt6i_peer, peer);
+}
+
+static inline bool rt6_set_peer(struct rt6_info *rt, struct inet_peer *peer)
+{
+ return inetpeer_ptr_set_peer(&rt->_rt6i_peer, peer);
+}
+
+static inline void rt6_init_peer(struct rt6_info *rt, struct inet_peer_base *base)
+{
+ inetpeer_init_ptr(&rt->_rt6i_peer, base);
+}
+
+static inline void rt6_transfer_peer(struct rt6_info *rt, struct rt6_info *ort)
+{
+ inetpeer_transfer_peer(&rt->_rt6i_peer, &ort->_rt6i_peer);
+}
+
static inline struct inet6_dev *ip6_dst_idev(struct dst_entry *dst)
{
return ((struct rt6_info *)dst)->rt6i_idev;
}
+static inline void rt6_clean_expires(struct rt6_info *rt)
+{
+ rt->rt6i_flags &= ~RTF_EXPIRES;
+ rt->dst.expires = 0;
+}
+
+static inline void rt6_set_expires(struct rt6_info *rt, unsigned long expires)
+{
+ rt->dst.expires = expires;
+ rt->rt6i_flags |= RTF_EXPIRES;
+}
+
+static inline void rt6_update_expires(struct rt6_info *rt0, int timeout)
+{
+ struct rt6_info *rt;
+
+ for (rt = rt0; rt && !(rt->rt6i_flags & RTF_EXPIRES);
+ rt = (struct rt6_info *)rt->dst.from);
+ if (rt && rt != rt0)
+ rt0->dst.expires = rt->dst.expires;
+
+ dst_set_expires(&rt0->dst, timeout);
+ rt0->rt6i_flags |= RTF_EXPIRES;
+}
+
+static inline void rt6_set_from(struct rt6_info *rt, struct rt6_info *from)
+{
+ struct dst_entry *new = (struct dst_entry *) from;
+
+ rt->rt6i_flags &= ~RTF_EXPIRES;
+ dst_hold(new);
+ rt->dst.from = new;
+}
+
+static inline void ip6_rt_put(struct rt6_info *rt)
+{
+ /* dst_release() accepts a NULL parameter.
+ * We rely on dst being first structure in struct rt6_info
+ */
+ BUILD_BUG_ON(offsetof(struct rt6_info, dst) != 0);
+ dst_release(&rt->dst);
+}
+
struct fib6_walker_t {
struct list_head lh;
struct fib6_node *root, *node;
@@ -162,6 +241,7 @@ struct fib6_table {
u32 tb6_id;
rwlock_t tb6_lock;
struct fib6_node tb6_root;
+ struct inet_peer_base tb6_peers;
};
#define RT6_TABLE_UNSPEC RT_TABLE_UNSPEC
@@ -182,50 +262,46 @@ struct fib6_table {
typedef struct rt6_info *(*pol_lookup_t)(struct net *,
struct fib6_table *,
- struct flowi *, int);
+ struct flowi6 *, int);
/*
* exported functions
*/
-extern struct fib6_table *fib6_get_table(struct net *net, u32 id);
-extern struct fib6_table *fib6_new_table(struct net *net, u32 id);
-extern struct dst_entry *fib6_rule_lookup(struct net *net,
- struct flowi *fl, int flags,
- pol_lookup_t lookup);
+struct fib6_table *fib6_get_table(struct net *net, u32 id);
+struct fib6_table *fib6_new_table(struct net *net, u32 id);
+struct dst_entry *fib6_rule_lookup(struct net *net, struct flowi6 *fl6,
+ int flags, pol_lookup_t lookup);
-extern struct fib6_node *fib6_lookup(struct fib6_node *root,
- struct in6_addr *daddr,
- struct in6_addr *saddr);
+struct fib6_node *fib6_lookup(struct fib6_node *root,
+ const struct in6_addr *daddr,
+ const struct in6_addr *saddr);
-struct fib6_node *fib6_locate(struct fib6_node *root,
- struct in6_addr *daddr, int dst_len,
- struct in6_addr *saddr, int src_len);
+struct fib6_node *fib6_locate(struct fib6_node *root,
+ const struct in6_addr *daddr, int dst_len,
+ const struct in6_addr *saddr, int src_len);
-extern void fib6_clean_all(struct net *net,
- int (*func)(struct rt6_info *, void *arg),
- int prune, void *arg);
+void fib6_clean_all(struct net *net, int (*func)(struct rt6_info *, void *arg),
+ void *arg);
-extern int fib6_add(struct fib6_node *root,
- struct rt6_info *rt,
- struct nl_info *info);
+int fib6_add(struct fib6_node *root, struct rt6_info *rt, struct nl_info *info,
+ struct nlattr *mx, int mx_len);
-extern int fib6_del(struct rt6_info *rt,
- struct nl_info *info);
+int fib6_del(struct rt6_info *rt, struct nl_info *info);
-extern void inet6_rt_notify(int event, struct rt6_info *rt,
- struct nl_info *info);
+void inet6_rt_notify(int event, struct rt6_info *rt, struct nl_info *info);
-extern void fib6_run_gc(unsigned long expires,
- struct net *net);
+void fib6_run_gc(unsigned long expires, struct net *net, bool force);
-extern void fib6_gc_cleanup(void);
+void fib6_gc_cleanup(void);
-extern int fib6_init(void);
+int fib6_init(void);
+
+int ipv6_route_open(struct inode *inode, struct file *file);
#ifdef CONFIG_IPV6_MULTIPLE_TABLES
-extern int fib6_rules_init(void);
-extern void fib6_rules_cleanup(void);
+int fib6_rules_init(void);
+void fib6_rules_cleanup(void);
#else
static inline int fib6_rules_init(void)
{
@@ -237,4 +313,3 @@ static inline void fib6_rules_cleanup(void)
}
#endif
#endif
-#endif
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-05 19:20:35 +0000