diff mbox series

[bpf-next,v2,5/8] bpf: Fix tests for local_storage

Message ID 20201103153132.2717326-6-kpsingh@chromium.org (mailing list archive)
State Superseded
Delegated to: BPF
Headers show
Series Implement task_local_storage | expand

Commit Message

KP Singh Nov. 3, 2020, 3:31 p.m. UTC 
From: KP Singh <kpsingh@google.com>

The {inode,sk}_storage_result checking if the correct value was retrieved
was being clobbered unconditionally by the return value of the
bpf_{inode,sk}_storage_delete call.

Also, consistently use the newly added BPF_LOCAL_STORAGE_GET_F_CREATE
flag.

Fixes: cd324d7abb3d ("bpf: Add selftests for local_storage")
Signed-off-by: KP Singh <kpsingh@google.com>
---
 .../selftests/bpf/progs/local_storage.c       | 24 ++++++++++++-------
 1 file changed, 15 insertions(+), 9 deletions(-)

Comments

Song Liu Nov. 4, 2020, 12:16 a.m. UTC | #1 
> On Nov 3, 2020, at 7:31 AM, KP Singh <kpsingh@chromium.org> wrote:
> 
> From: KP Singh <kpsingh@google.com>
> 
> The {inode,sk}_storage_result checking if the correct value was retrieved
> was being clobbered unconditionally by the return value of the
> bpf_{inode,sk}_storage_delete call.
> 
> Also, consistently use the newly added BPF_LOCAL_STORAGE_GET_F_CREATE
> flag.
> 
> Fixes: cd324d7abb3d ("bpf: Add selftests for local_storage")
> Signed-off-by: KP Singh <kpsingh@google.com>

Acked-by: Song Liu <songliubraving@fb.com>

[...]
diff mbox series

Patch

diff --git a/tools/testing/selftests/bpf/progs/local_storage.c b/tools/testing/selftests/bpf/progs/local_storage.c
index 0758ba229ae0..09529e33be98 100644
--- a/tools/testing/selftests/bpf/progs/local_storage.c
+++ b/tools/testing/selftests/bpf/progs/local_storage.c
@@ -58,20 +58,22 @@  int BPF_PROG(unlink_hook, struct inode *dir, struct dentry *victim)
 {
 	__u32 pid = bpf_get_current_pid_tgid() >> 32;
 	struct dummy_storage *storage;
+	int err;
 
 	if (pid != monitored_pid)
 		return 0;
 
 	storage = bpf_inode_storage_get(&inode_storage_map, victim->d_inode, 0,
-				     BPF_SK_STORAGE_GET_F_CREATE);
+					BPF_LOCAL_STORAGE_GET_F_CREATE);
 	if (!storage)
 		return 0;
 
-	if (storage->value == DUMMY_STORAGE_VALUE)
+	if (storage->value != DUMMY_STORAGE_VALUE)
 		inode_storage_result = -1;
 
-	inode_storage_result =
-		bpf_inode_storage_delete(&inode_storage_map, victim->d_inode);
+	err = bpf_inode_storage_delete(&inode_storage_map, victim->d_inode);
+	if (!err)
+		inode_storage_result = err;
 
 	return 0;
 }
@@ -82,19 +84,23 @@  int BPF_PROG(socket_bind, struct socket *sock, struct sockaddr *address,
 {
 	__u32 pid = bpf_get_current_pid_tgid() >> 32;
 	struct dummy_storage *storage;
+	int err;
 
 	if (pid != monitored_pid)
 		return 0;
 
 	storage = bpf_sk_storage_get(&sk_storage_map, sock->sk, 0,
-				     BPF_SK_STORAGE_GET_F_CREATE);
+				     BPF_LOCAL_STORAGE_GET_F_CREATE);
 	if (!storage)
 		return 0;
 
-	if (storage->value == DUMMY_STORAGE_VALUE)
+	if (storage->value != DUMMY_STORAGE_VALUE)
 		sk_storage_result = -1;
 
-	sk_storage_result = bpf_sk_storage_delete(&sk_storage_map, sock->sk);
+	err = bpf_sk_storage_delete(&sk_storage_map, sock->sk);
+	if (!err)
+		sk_storage_result = err;
+
 	return 0;
 }
 
@@ -109,7 +115,7 @@  int BPF_PROG(socket_post_create, struct socket *sock, int family, int type,
 		return 0;
 
 	storage = bpf_sk_storage_get(&sk_storage_map, sock->sk, 0,
-				     BPF_SK_STORAGE_GET_F_CREATE);
+				     BPF_LOCAL_STORAGE_GET_F_CREATE);
 	if (!storage)
 		return 0;
 
@@ -131,7 +137,7 @@  int BPF_PROG(file_open, struct file *file)
 		return 0;
 
 	storage = bpf_inode_storage_get(&inode_storage_map, file->f_inode, 0,
-				     BPF_LOCAL_STORAGE_GET_F_CREATE);
+					BPF_LOCAL_STORAGE_GET_F_CREATE);
 	if (!storage)
 		return 0;