[PATCH bpf-next v3 4/8] selftests/bpf: Add start_server_str helper

[Geliang Tang <geliang@xxxxxxxxxx>]

From: Geliang Tang <tanggeliang@xxxxxxxxxx>

It's a tech debt that start_server() does not take the "opts" argument.
It's pretty handy to have start_server() as a helper that takes string
address.

So this patch creates a new helper start_server_str(). Then start_server()
can be a wrapper of it.

Signed-off-by: Geliang Tang <tanggeliang@xxxxxxxxxx>
---
 tools/testing/selftests/bpf/network_helpers.c | 22 ++++++++++++++-----
 tools/testing/selftests/bpf/network_helpers.h |  2 ++
 2 files changed, 18 insertions(+), 6 deletions(-)

diff --git a/tools/testing/selftests/bpf/network_helpers.c b/tools/testing/selftests/bpf/network_helpers.c
index 49e807ffcccb..ba80005d2d7a 100644
--- a/tools/testing/selftests/bpf/network_helpers.c
+++ b/tools/testing/selftests/bpf/network_helpers.c
@@ -119,6 +119,21 @@ static int __start_server(const struct sockaddr *addr, socklen_t addrlen,
 	return -1;
 }
 
+int start_server_str(int family, const char *addr_str, __u16 port,
+		     const struct network_helper_opts *opts)
+{
+	struct sockaddr_storage addr;
+	socklen_t addrlen;
+
+	if (!opts)
+		opts = &default_opts;
+
+	if (make_sockaddr(family, addr_str, port, &addr, &addrlen))
+		return -1;
+
+	return __start_server((struct sockaddr *)&addr, addrlen, opts);
+}
+
 int start_server(int family, int type, const char *addr_str, __u16 port,
 		 int timeout_ms)
 {
@@ -126,13 +141,8 @@ int start_server(int family, int type, const char *addr_str, __u16 port,
 		.type		= type,
 		.timeout_ms	= timeout_ms,
 	};
-	struct sockaddr_storage addr;
-	socklen_t addrlen;
-
-	if (make_sockaddr(family, addr_str, port, &addr, &addrlen))
-		return -1;
 
-	return __start_server((struct sockaddr *)&addr, addrlen, &opts);
+	return start_server_str(family, addr_str, port, &opts);
 }
 
 static int reuseport_cb(int fd, void *opts)
diff --git a/tools/testing/selftests/bpf/network_helpers.h b/tools/testing/selftests/bpf/network_helpers.h
index c925c771bd98..d1d28d4f92bd 100644
--- a/tools/testing/selftests/bpf/network_helpers.h
+++ b/tools/testing/selftests/bpf/network_helpers.h
@@ -48,6 +48,8 @@ struct ipv6_packet {
 extern struct ipv6_packet pkt_v6;
 
 int settimeo(int fd, int timeout_ms);
+int start_server_str(int family, const char *addr_str, __u16 port,
+		     const struct network_helper_opts *opts);
 int start_server(int family, int type, const char *addr, __u16 port,
 		 int timeout_ms);
 int *start_reuseport_server(int family, int type, const char *addr_str,
-- 
2.43.0