diff mbox series

[v4,bpf-next,04/15] bpf: net: Change do_tcp_setsockopt() to use the sockopt's lock_sock() and capable()

Message ID 20220817061730.4176021-1-kafai@fb.com (mailing list archive)
State Accepted
Commit cb388e7ee3a824250a66b854adae9f03b70956f1
Delegated to: BPF
Headers show
Series bpf: net: Remove duplicated code from bpf_setsockopt() | expand

Checks

Context Check Description
netdev/tree_selection success Clearly marked for bpf-next, async
netdev/apply fail Patch does not apply to bpf-next
bpf/vmtest-bpf-next-VM_Test-6 fail Logs for Kernel LATEST on z15 with gcc
bpf/vmtest-bpf-next-VM_Test-7 success Logs for llvm-toolchain
bpf/vmtest-bpf-next-VM_Test-8 success Logs for llvm-toolchain
bpf/vmtest-bpf-next-PR fail PR summary
bpf/vmtest-bpf-next-VM_Test-1 fail Logs for Kernel LATEST on ubuntu-latest with gcc
bpf/vmtest-bpf-next-VM_Test-2 fail Logs for Kernel LATEST on ubuntu-latest with llvm-16
bpf/vmtest-bpf-next-VM_Test-3 fail Logs for Kernel LATEST on z15 with gcc
bpf/vmtest-bpf-next-VM_Test-4 success Logs for llvm-toolchain
bpf/vmtest-bpf-next-VM_Test-5 success Logs for set-matrix

Commit Message

Martin KaFai Lau Aug. 17, 2022, 6:17 a.m. UTC 
Similar to the earlier patch that avoids sk_setsockopt() from
taking sk lock and doing capable test when called by bpf.  This patch
changes do_tcp_setsockopt() to use the sockopt_{lock,release}_sock()
and sockopt_[ns_]capable().

Reviewed-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
---
 net/ipv4/tcp.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)
diff mbox series

Patch

diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 970e9a2cca4a..cfed84b1883f 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -3202,7 +3202,7 @@  EXPORT_SYMBOL(tcp_disconnect);
 
 static inline bool tcp_can_repair_sock(const struct sock *sk)
 {
-	return ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN) &&
+	return sockopt_ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN) &&
 		(sk->sk_state != TCP_LISTEN);
 }
 
@@ -3502,11 +3502,11 @@  static int do_tcp_setsockopt(struct sock *sk, int level, int optname,
 			return -EFAULT;
 		name[val] = 0;
 
-		lock_sock(sk);
+		sockopt_lock_sock(sk);
 		err = tcp_set_congestion_control(sk, name, true,
-						 ns_capable(sock_net(sk)->user_ns,
-							    CAP_NET_ADMIN));
-		release_sock(sk);
+						 sockopt_ns_capable(sock_net(sk)->user_ns,
+								    CAP_NET_ADMIN));
+		sockopt_release_sock(sk);
 		return err;
 	}
 	case TCP_ULP: {
@@ -3522,9 +3522,9 @@  static int do_tcp_setsockopt(struct sock *sk, int level, int optname,
 			return -EFAULT;
 		name[val] = 0;
 
-		lock_sock(sk);
+		sockopt_lock_sock(sk);
 		err = tcp_set_ulp(sk, name);
-		release_sock(sk);
+		sockopt_release_sock(sk);
 		return err;
 	}
 	case TCP_FASTOPEN_KEY: {
@@ -3557,7 +3557,7 @@  static int do_tcp_setsockopt(struct sock *sk, int level, int optname,
 	if (copy_from_sockptr(&val, optval, sizeof(val)))
 		return -EFAULT;
 
-	lock_sock(sk);
+	sockopt_lock_sock(sk);
 
 	switch (optname) {
 	case TCP_MAXSEG:
@@ -3779,7 +3779,7 @@  static int do_tcp_setsockopt(struct sock *sk, int level, int optname,
 		break;
 	}
 
-	release_sock(sk);
+	sockopt_release_sock(sk);
 	return err;
 }