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selftests/bpf: convert bpf_rdonly_cast() uses to bpf_core_cast() macro

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Use more ergonomic bpf_core_cast() macro instead of bpf_rdonly_cast() in
selftests code.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20240130212023.183765-3-andrii@kernel.org
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
This commit is contained in:
Andrii Nakryiko 2024-01-30 13:20:23 -08:00 committed by Martin KaFai Lau
parent 20d59ee551
commit ea9d561686
8 changed files with 12 additions and 18 deletions
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3
tools/testing/selftests/bpf/progs/connect_unix_prog.c
View file

@ -28,8 +28,7 @@ int connect_unix_prog(struct bpf_sock_addr *ctx)
if (sa_kern->uaddrlen != unaddrlen)
return 0;
sa_kern_unaddr = bpf_rdonly_cast(sa_kern->uaddr,
bpf_core_type_id_kernel(struct sockaddr_un));
sa_kern_unaddr = bpf_core_cast(sa_kern->uaddr, struct sockaddr_un);
if (memcmp(sa_kern_unaddr->sun_path, SERVUN_REWRITE_ADDRESS,
sizeof(SERVUN_REWRITE_ADDRESS) - 1) != 0)
return 0;

3
tools/testing/selftests/bpf/progs/getpeername_unix_prog.c
View file

@ -27,8 +27,7 @@ int getpeername_unix_prog(struct bpf_sock_addr *ctx)
if (sa_kern->uaddrlen != unaddrlen)
return 1;
sa_kern_unaddr = bpf_rdonly_cast(sa_kern->uaddr,
bpf_core_type_id_kernel(struct sockaddr_un));
sa_kern_unaddr = bpf_core_cast(sa_kern->uaddr, struct sockaddr_un);
if (memcmp(sa_kern_unaddr->sun_path, SERVUN_REWRITE_ADDRESS,
sizeof(SERVUN_REWRITE_ADDRESS) - 1) != 0)
return 1;

3
tools/testing/selftests/bpf/progs/getsockname_unix_prog.c
View file

@ -27,8 +27,7 @@ int getsockname_unix_prog(struct bpf_sock_addr *ctx)
if (sa_kern->uaddrlen != unaddrlen)
return 1;
sa_kern_unaddr = bpf_rdonly_cast(sa_kern->uaddr,
bpf_core_type_id_kernel(struct sockaddr_un));
sa_kern_unaddr = bpf_core_cast(sa_kern->uaddr, struct sockaddr_un);
if (memcmp(sa_kern_unaddr->sun_path, SERVUN_REWRITE_ADDRESS,
sizeof(SERVUN_REWRITE_ADDRESS) - 1) != 0)
return 1;

3
tools/testing/selftests/bpf/progs/recvmsg_unix_prog.c
View file

@ -27,8 +27,7 @@ int recvmsg_unix_prog(struct bpf_sock_addr *ctx)
if (sa_kern->uaddrlen != unaddrlen)
return 1;
sa_kern_unaddr = bpf_rdonly_cast(sa_kern->uaddr,
bpf_core_type_id_kernel(struct sockaddr_un));
sa_kern_unaddr = bpf_core_cast(sa_kern->uaddr, struct sockaddr_un);
if (memcmp(sa_kern_unaddr->sun_path, SERVUN_ADDRESS,
sizeof(SERVUN_ADDRESS) - 1) != 0)
return 1;

3
tools/testing/selftests/bpf/progs/sendmsg_unix_prog.c
View file

@ -28,8 +28,7 @@ int sendmsg_unix_prog(struct bpf_sock_addr *ctx)
if (sa_kern->uaddrlen != unaddrlen)
return 0;
sa_kern_unaddr = bpf_rdonly_cast(sa_kern->uaddr,
bpf_core_type_id_kernel(struct sockaddr_un));
sa_kern_unaddr = bpf_core_cast(sa_kern->uaddr, struct sockaddr_un);
if (memcmp(sa_kern_unaddr->sun_path, SERVUN_REWRITE_ADDRESS,
sizeof(SERVUN_REWRITE_ADDRESS) - 1) != 0)
return 0;

2
tools/testing/selftests/bpf/progs/sk_storage_omem_uncharge.c
View file

@ -27,7 +27,7 @@ int BPF_PROG(bpf_local_storage_destroy, struct bpf_local_storage *local_storage)
if (local_storage_ptr != local_storage)
return 0;
sk = bpf_rdonly_cast(sk_ptr, bpf_core_type_id_kernel(struct sock));
sk = bpf_core_cast(sk_ptr, struct sock);
if (sk->sk_cookie.counter != cookie)
return 0;

4
tools/testing/selftests/bpf/progs/sock_iter_batch.c
View file

@ -32,7 +32,7 @@ int iter_tcp_soreuse(struct bpf_iter__tcp *ctx)
if (!sk)
return 0;
sk = bpf_rdonly_cast(sk, bpf_core_type_id_kernel(struct sock));
sk = bpf_core_cast(sk, struct sock);
if (sk->sk_family != AF_INET6 ||
sk->sk_state != TCP_LISTEN ||
!ipv6_addr_loopback(&sk->sk_v6_rcv_saddr))
@ -68,7 +68,7 @@ int iter_udp_soreuse(struct bpf_iter__udp *ctx)
if (!sk)
return 0;
sk = bpf_rdonly_cast(sk, bpf_core_type_id_kernel(struct sock));
sk = bpf_core_cast(sk, struct sock);
if (sk->sk_family != AF_INET6 ||
!ipv6_addr_loopback(&sk->sk_v6_rcv_saddr))
return 0;

9
tools/testing/selftests/bpf/progs/type_cast.c
View file

@ -46,13 +46,12 @@ int md_skb(struct __sk_buff *skb)
/* Simulate the following kernel macro:
* #define skb_shinfo(SKB) ((struct skb_shared_info *)(skb_end_pointer(SKB)))
*/
shared_info = bpf_rdonly_cast(kskb->head + kskb->end,
bpf_core_type_id_kernel(struct skb_shared_info));
shared_info = bpf_core_cast(kskb->head + kskb->end, struct skb_shared_info);
meta_len = shared_info->meta_len;
frag0_len = shared_info->frag_list->len;
/* kskb2 should be equal to kskb */
kskb2 = bpf_rdonly_cast(kskb, bpf_core_type_id_kernel(struct sk_buff));
kskb2 = bpf_core_cast(kskb, typeof(*kskb2));
kskb2_len = kskb2->len;
return 0;
}
@ -63,7 +62,7 @@ int BPF_PROG(untrusted_ptr, struct pt_regs *regs, long id)
struct task_struct *task, *task_dup;
task = bpf_get_current_task_btf();
task_dup = bpf_rdonly_cast(task, bpf_core_type_id_kernel(struct task_struct));
task_dup = bpf_core_cast(task, struct task_struct);
(void)bpf_task_storage_get(&enter_id, task_dup, 0, 0);
return 0;
}
@ -71,7 +70,7 @@ int BPF_PROG(untrusted_ptr, struct pt_regs *regs, long id)
SEC("?tracepoint/syscalls/sys_enter_nanosleep")
int kctx_u64(void *ctx)
{
u64 *kctx = bpf_rdonly_cast(ctx, bpf_core_type_id_kernel(u64));
u64 *kctx = bpf_core_cast(ctx, u64);
(void)kctx;
return 0;