From patchwork Thu Apr 11 01:03:17 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Geliang Tang X-Patchwork-Id: 788138 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 24E66EEB5; Thu, 11 Apr 2024 01:04:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712797472; cv=none; b=Wkz3Y/3TdrWeqjWwgieHyS2Q0tZT3mO+H6CZRCHEVwLGp8l5c+zW2e3GFL76c7NmbxSg2MFU7zDzYgsNtGzmtbCNUYca7gTGk0nuEJxg2JtEQyWjqe4gFEu5kOVpUnPlpUy15jYQ8YHDXIoejXySaegrBtPOdzcFUbYbPUXa0z8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712797472; c=relaxed/simple; bh=OeODH0klwt+6i/ftihxA/lIrmuSswUPkNOdx9aZwfUc=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=QF0izMf5WwR1Rc2GsjxmZIMH/daj3SFgHOFM2CSRNWWYuAgZF7gr4U+iHGfkI2iCsQoBSjW+JVZE3ReDLAsLAQoYZXr5uon9qAua+8u3gQXJmvcJs5WzBQ263CFCquruI/bwaDCd7R0ZOSV6HvylAASfAItZHeKaBw4AatJaXk8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=iMSYUceg; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="iMSYUceg" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1588FC433C7; Thu, 11 Apr 2024 01:04:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1712797471; bh=OeODH0klwt+6i/ftihxA/lIrmuSswUPkNOdx9aZwfUc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=iMSYUcegY5kgEHrb8bQs3BbZI9+G88/ru6J5KlSk8dsQr/8vcggrGznGw8E0bYD25 7aHFFvhPPogco86DpG2LGtvFpaIiji3g9QUNPflAlPzsW4N2N5I/k3CVGeGpPy9n7n X00LPGTx/bkFqGSzcG3CPtHoavLBIR1aB4oukaebsQpkTBvT8hTr6k4sseV8tAT/cl g4cUazW0JkNM2UA4zFurmw+DWfF80L8OuiTziS4YxbqTc0DGceQI3DqSaOh8DsFvpn xzX56Jn9SjNxqP5zN4i6qUl/RPicbH06PtDSjRHXCWPnKXyZmYU+ZnTnUQqQwvxniI WrhKt3KwvUzvg== From: Geliang Tang To: Andrii Nakryiko , Eduard Zingerman , Mykola Lysenko , Alexei Starovoitov , Daniel Borkmann , Martin KaFai Lau , Song Liu , Yonghong Song , John Fastabend , KP Singh , Stanislav Fomichev , Hao Luo , Jiri Olsa , Shuah Khan Cc: Geliang Tang , bpf@vger.kernel.org, linux-kselftest@vger.kernel.org Subject: [PATCH bpf-next v2 09/14] selftests/bpf: Add function pointer for __start_server Date: Thu, 11 Apr 2024 09:03:17 +0800 Message-Id: X-Mailer: git-send-email 2.40.1 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Geliang Tang __start_server() sets SO_REUSPORT through setsockopt() when the parameter 'reuseport' is set. This patch makes it more flexible by accepting a function pointer named setsockopt. Then the original start_reuseport_server() can be implemented by passing in a newly defined setsockopt_reuse() function pointer to __start_server(). Signed-off-by: Geliang Tang --- tools/testing/selftests/bpf/network_helpers.c | 22 +++++++++++-------- 1 file changed, 13 insertions(+), 9 deletions(-) diff --git a/tools/testing/selftests/bpf/network_helpers.c b/tools/testing/selftests/bpf/network_helpers.c index 91b014784dd9..2a389e8c2503 100644 --- a/tools/testing/selftests/bpf/network_helpers.c +++ b/tools/testing/selftests/bpf/network_helpers.c @@ -79,9 +79,9 @@ int settimeo(int fd, int timeout_ms) #define save_errno_close(fd) ({ int __save = errno; close(fd); errno = __save; }) static int __start_server(int type, int protocol, const struct sockaddr *addr, - socklen_t addrlen, int timeout_ms, bool reuseport) + socklen_t addrlen, int timeout_ms, + int *(*setsockopt)(int fd, int val), int val) { - int on = 1; int fd; fd = socket(addr->sa_family, type, protocol); @@ -93,9 +93,8 @@ static int __start_server(int type, int protocol, const struct sockaddr *addr, if (settimeo(fd, timeout_ms)) goto error_close; - if (reuseport && - setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, &on, sizeof(on))) { - log_err("Failed to set SO_REUSEPORT"); + if (setsockopt && setsockopt(fd, val)) { + log_err("Failed to set sockopt"); goto error_close; } @@ -128,7 +127,7 @@ static int start_server_proto(int family, int type, int protocol, return -1; return __start_server(type, protocol, (struct sockaddr *)&addr, - addrlen, timeout_ms, false); + addrlen, timeout_ms, NULL, 0); } int start_server(int family, int type, const char *addr_str, __u16 port, @@ -144,6 +143,11 @@ int start_mptcp_server(int family, const char *addr_str, __u16 port, port, timeout_ms); } +static int setsockopt_reuse(int fd, int on) +{ + return setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, &on, sizeof(on)); +} + int *start_reuseport_server(int family, int type, const char *addr_str, __u16 port, int timeout_ms, unsigned int nr_listens) { @@ -163,7 +167,7 @@ int *start_reuseport_server(int family, int type, const char *addr_str, return NULL; fds[0] = __start_server(type, 0, (struct sockaddr *)&addr, addrlen, - timeout_ms, true); + timeout_ms, (void *)setsockopt_reuse, 1); if (fds[0] == -1) goto close_fds; nr_fds = 1; @@ -173,7 +177,7 @@ int *start_reuseport_server(int family, int type, const char *addr_str, for (; nr_fds < nr_listens; nr_fds++) { fds[nr_fds] = __start_server(type, 0, (struct sockaddr *)&addr, - addrlen, timeout_ms, true); + addrlen, timeout_ms, (void *)setsockopt_reuse, 1); if (fds[nr_fds] == -1) goto close_fds; } @@ -187,7 +191,7 @@ int *start_reuseport_server(int family, int type, const char *addr_str, int start_server_addr(const struct sockaddr *addr, socklen_t addrlen, int type) { - return __start_server(type, 0, addr, addrlen, 0, 0); + return __start_server(type, 0, addr, addrlen, 0, NULL, 0); } void free_fds(int *fds, unsigned int nr_close_fds)