Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

Alexei Starovoitov says:

====================
pull-request: bpf-next 2022-12-11

We've added 74 non-merge commits during the last 11 day(s) which contain
a total of 88 files changed, 3362 insertions(+), 789 deletions(-).

The main changes are:

1) Decouple prune and jump points handling in the verifier, from Andrii.

2) Do not rely on ALLOW_ERROR_INJECTION for fmod_ret, from Benjamin.
   Merged from hid tree.

3) Do not zero-extend kfunc return values. Necessary fix for 32-bit archs,
   from Björn.

4) Don't use rcu_users to refcount in task kfuncs, from David.

5) Three reg_state->id fixes in the verifier, from Eduard.

6) Optimize bpf_mem_alloc by reusing elements from free_by_rcu, from Hou.

7) Refactor dynptr handling in the verifier, from Kumar.

8) Remove the "/sys" mount and umount dance in {open,close}_netns
  in bpf selftests, from Martin.

9) Enable sleepable support for cgrp local storage, from Yonghong.

* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (74 commits)
  selftests/bpf: test case for relaxed prunning of active_lock.id
  selftests/bpf: Add pruning test case for bpf_spin_lock
  bpf: use check_ids() for active_lock comparison
  selftests/bpf: verify states_equal() maintains idmap across all frames
  bpf: states_equal() must build idmap for all function frames
  selftests/bpf: test cases for regsafe() bug skipping check_id()
  bpf: regsafe() must not skip check_ids()
  docs/bpf: Add documentation for BPF_MAP_TYPE_SK_STORAGE
  selftests/bpf: Add test for dynptr reinit in user_ringbuf callback
  bpf: Use memmove for bpf_dynptr_{read,write}
  bpf: Move PTR_TO_STACK alignment check to process_dynptr_func
  bpf: Rework check_func_arg_reg_off
  bpf: Rework process_dynptr_func
  bpf: Propagate errors from process_* checks in check_func_arg
  bpf: Refactor ARG_PTR_TO_DYNPTR checks into process_dynptr_func
  bpf: Skip rcu_barrier() if rcu_trace_implies_rcu_gp() is true
  bpf: Reuse freed element in free_by_rcu during allocation
  selftests/bpf: Bring test_offload.py back to life
  bpf: Fix comment error in fixup_kfunc_call function
  bpf: Do not zero-extend kfunc return values
  ...
====================

Link: https://lore.kernel.org/r/20221212024701.73809-1-alexei.starovoitov@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

4 files changed, 21 insertions, 3 deletions

diff --git a/include/net/dst_metadata.h b/include/net/dst_metadata.h
index a454cf4327fe..1b7fae4c6b24 100644
--- a/include/net/dst_metadata.h
+++ b/include/net/dst_metadata.h
@@ -26,6 +26,7 @@ struct macsec_info {
 struct xfrm_md_info {
 	u32 if_id;
 	int link;
+	struct dst_entry *dst_orig;
 };
 
 struct metadata_dst {
diff --git a/include/net/netns/xdp.h b/include/net/netns/xdp.h
index e5734261ba0a..21a4f25a187a 100644
--- a/include/net/netns/xdp.h
+++ b/include/net/netns/xdp.h
@@ -2,8 +2,8 @@
 #ifndef __NETNS_XDP_H__
 #define __NETNS_XDP_H__
 
-#include <linux/rculist.h>
 #include <linux/mutex.h>
+#include <linux/types.h>
 
 struct netns_xdp {
 	struct mutex		lock;
diff --git a/include/net/tcp.h b/include/net/tcp.h
index f925377066fe..db9f828e9d1e 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -2323,8 +2323,8 @@ int tcp_bpf_update_proto(struct sock *sk, struct sk_psock *psock, bool restore);
 void tcp_bpf_clone(const struct sock *sk, struct sock *newsk);
 #endif /* CONFIG_BPF_SYSCALL */
 
-int tcp_bpf_sendmsg_redir(struct sock *sk, struct sk_msg *msg, u32 bytes,
-			  int flags);
+int tcp_bpf_sendmsg_redir(struct sock *sk, bool ingress,
+			  struct sk_msg *msg, u32 bytes, int flags);
 #endif /* CONFIG_NET_SOCK_MSG */
 
 #if !defined(CONFIG_BPF_SYSCALL) || !defined(CONFIG_NET_SOCK_MSG)
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index 5413cdd5ad62..3e1f70e8e424 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -2164,4 +2164,21 @@ static inline bool xfrm6_local_dontfrag(const struct sock *sk)
 	return false;
 }
 #endif
+
+#if (IS_BUILTIN(CONFIG_XFRM_INTERFACE) && IS_ENABLED(CONFIG_DEBUG_INFO_BTF)) || \
+    (IS_MODULE(CONFIG_XFRM_INTERFACE) && IS_ENABLED(CONFIG_DEBUG_INFO_BTF_MODULES))
+
+extern struct metadata_dst __percpu *xfrm_bpf_md_dst;
+
+int register_xfrm_interface_bpf(void);
+
+#else
+
+static inline int register_xfrm_interface_bpf(void)
+{
+	return 0;
+}
+
+#endif
+
 #endif	/* _NET_XFRM_H */