From: Aditi Ghag <aditi.ghag@isovalent.com>
To: bpf@vger.kernel.org
Cc: kafai@fb.com, sdf@google.com, aditi.ghag@isovalent.com
Subject: [PATCH v7 bpf-next 07/10] selftests/bpf: Add helper to get port using getsockname
Date: Wed, 3 May 2023 22:53:48 +0000 [thread overview]
Message-ID: <20230503225351.3700208-8-aditi.ghag@isovalent.com> (raw)
In-Reply-To: <20230503225351.3700208-1-aditi.ghag@isovalent.com>
The helper will be used to programmatically retrieve,
and pass ports in userspace and kernel selftest programs.
Suggested-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Aditi Ghag <aditi.ghag@isovalent.com>
---
tools/testing/selftests/bpf/network_helpers.c | 23 +++++++++++++++++++
tools/testing/selftests/bpf/network_helpers.h | 1 +
2 files changed, 24 insertions(+)
diff --git a/tools/testing/selftests/bpf/network_helpers.c b/tools/testing/selftests/bpf/network_helpers.c
index 596caa176582..a105c0cd008a 100644
--- a/tools/testing/selftests/bpf/network_helpers.c
+++ b/tools/testing/selftests/bpf/network_helpers.c
@@ -427,3 +427,26 @@ void close_netns(struct nstoken *token)
close(token->orig_netns_fd);
free(token);
}
+
+int get_socket_local_port(int sock_fd)
+{
+ struct sockaddr_storage addr;
+ socklen_t addrlen = sizeof(addr);
+ int err;
+
+ err = getsockname(sock_fd, (struct sockaddr *)&addr, &addrlen);
+ if (err < 0)
+ return err;
+
+ if (addr.ss_family == AF_INET) {
+ struct sockaddr_in *sin = (struct sockaddr_in *)&addr;
+
+ return sin->sin_port;
+ } else if (addr.ss_family == AF_INET6) {
+ struct sockaddr_in6 *sin = (struct sockaddr_in6 *)&addr;
+
+ return sin->sin6_port;
+ }
+
+ return -1;
+}
diff --git a/tools/testing/selftests/bpf/network_helpers.h b/tools/testing/selftests/bpf/network_helpers.h
index f882c691b790..694185644da6 100644
--- a/tools/testing/selftests/bpf/network_helpers.h
+++ b/tools/testing/selftests/bpf/network_helpers.h
@@ -56,6 +56,7 @@ int fastopen_connect(int server_fd, const char *data, unsigned int data_len,
int make_sockaddr(int family, const char *addr_str, __u16 port,
struct sockaddr_storage *addr, socklen_t *len);
char *ping_command(int family);
+int get_socket_local_port(int sock_fd);
struct nstoken;
/**
--
2.34.1
next prev parent reply other threads:[~2023-05-03 22:54 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-03 22:53 [PATCH v7 bpf-next 00/10] bpf: Add socket destroy capability Aditi Ghag
2023-05-03 22:53 ` [PATCH v7 bpf-next 01/10] bpf: tcp: Avoid taking fast sock lock in iterator Aditi Ghag
2023-05-03 22:53 ` [PATCH v7 bpf-next 02/10] udp: seq_file: Helper function to match socket attributes Aditi Ghag
2023-05-03 22:53 ` [PATCH v7 bpf-next 03/10] bpf: udp: Encapsulate logic to get udp table Aditi Ghag
2023-05-03 22:53 ` [PATCH v7 bpf-next 04/10] udp: seq_file: Remove bpf_seq_afinfo from udp_iter_state Aditi Ghag
2023-05-04 1:25 ` Aditi Ghag
2023-05-03 22:53 ` [PATCH v7 bpf-next 05/10] bpf: udp: Implement batching for sockets iterator Aditi Ghag
2023-05-03 22:53 ` [PATCH v7 bpf-next 06/10] bpf: Add bpf_sock_destroy kfunc Aditi Ghag
2023-05-05 0:13 ` Martin KaFai Lau
2023-05-05 18:49 ` Martin KaFai Lau
2023-05-05 20:05 ` Alexei Starovoitov
2023-05-03 22:53 ` Aditi Ghag [this message]
2023-05-04 17:33 ` [PATCH v7 bpf-next 07/10] selftests/bpf: Add helper to get port using getsockname Stanislav Fomichev
2023-05-03 22:53 ` [PATCH v7 bpf-next 08/10] selftests/bpf: Test bpf_sock_destroy Aditi Ghag
2023-05-05 0:24 ` Martin KaFai Lau
2023-05-03 22:53 ` [PATCH v7 bpf-next 09/10] bpf: Add a kfunc filter function to 'struct btf_kfunc_id_set' Aditi Ghag
2023-05-05 0:28 ` Martin KaFai Lau
2023-05-03 22:53 ` [PATCH v7 bpf-next 10/10] selftests/bpf: Extend bpf_sock_destroy tests Aditi Ghag
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