From f9004dbfff8a3fbbd7e2a88c8a4327c7f2f8e5b2 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 31 Jan 2024 01:04:47 +0000
Subject: [PATCH] add driver 5G
---
kernel/include/net/dst.h | 41 ++++++++++++-----------------------------
1 files changed, 12 insertions(+), 29 deletions(-)
diff --git a/kernel/include/net/dst.h b/kernel/include/net/dst.h
index d272852..8a74d14 100644
--- a/kernel/include/net/dst.h
+++ b/kernel/include/net/dst.h
@@ -19,17 +19,6 @@
#include <net/neighbour.h>
#include <asm/processor.h>
-#define DST_GC_MIN (HZ/10)
-#define DST_GC_INC (HZ/2)
-#define DST_GC_MAX (120*HZ)
-
-/* Each dst_entry has reference count and sits in some parent list(s).
- * When it is removed from parent list, it is "freed" (dst_free).
- * After this it enters dead state (dst->obsolete > 0) and if its refcnt
- * is zero, it can be destroyed immediately, otherwise it is added
- * to gc list and garbage collector periodically checks the refcnt.
- */
-
struct sk_buff;
struct dst_entry {
@@ -46,7 +35,6 @@
int (*output)(struct net *net, struct sock *sk, struct sk_buff *skb);
unsigned short flags;
-#define DST_HOST 0x0001
#define DST_NOXFRM 0x0002
#define DST_NOPOLICY 0x0004
#define DST_NOCOUNT 0x0008
@@ -194,7 +182,7 @@
}
/* Kernel-internal feature bits that are unallocated in user space. */
-#define DST_FEATURE_ECN_CA (1 << 31)
+#define DST_FEATURE_ECN_CA (1U << 31)
#define DST_FEATURE_MASK (DST_FEATURE_ECN_CA)
#define DST_FEATURE_ECN_MASK (DST_FEATURE_ECN_CA | RTAX_FEATURE_ECN)
@@ -226,7 +214,7 @@
static inline int
dst_metric_locked(const struct dst_entry *dst, int metric)
{
- return dst_metric(dst, RTAX_LOCK) & (1<<metric);
+ return dst_metric(dst, RTAX_LOCK) & (1 << metric);
}
static inline void dst_hold(struct dst_entry *dst)
@@ -245,12 +233,6 @@
dst->__use++;
dst->lastuse = time;
}
-}
-
-static inline void dst_hold_and_use(struct dst_entry *dst, unsigned long time)
-{
- dst_hold(dst);
- dst_use_noref(dst, time);
}
static inline struct dst_entry *dst_clone(struct dst_entry *dst)
@@ -547,14 +529,15 @@
dst->ops->update_pmtu(dst, NULL, skb, mtu, false);
}
-static inline void skb_tunnel_check_pmtu(struct sk_buff *skb,
- struct dst_entry *encap_dst,
- int headroom)
-{
- u32 encap_mtu = dst_mtu(encap_dst);
-
- if (skb->len > encap_mtu - headroom)
- skb_dst_update_pmtu_no_confirm(skb, encap_mtu - headroom);
-}
+struct dst_entry *dst_blackhole_check(struct dst_entry *dst, u32 cookie);
+void dst_blackhole_update_pmtu(struct dst_entry *dst, struct sock *sk,
+ struct sk_buff *skb, u32 mtu, bool confirm_neigh);
+void dst_blackhole_redirect(struct dst_entry *dst, struct sock *sk,
+ struct sk_buff *skb);
+u32 *dst_blackhole_cow_metrics(struct dst_entry *dst, unsigned long old);
+struct neighbour *dst_blackhole_neigh_lookup(const struct dst_entry *dst,
+ struct sk_buff *skb,
+ const void *daddr);
+unsigned int dst_blackhole_mtu(const struct dst_entry *dst);
#endif /* _NET_DST_H */
--
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