From mboxrd@z Thu Jan 1 00:00:00 1970 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 4C95132F76F; Tue, 21 Oct 2025 11:46:50 +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=1761047211; cv=none; b=R3c5ZNRI6GE+Y0FMJhIdIN4cUnT7WLFHD6ZQvLik5FeYjbGEm23SHBuf87SgcAJGmxTpySeUIiK5izSLgo2hh7JXlBFAV/A879rW1dCCltS03VppCNpVDc3Mi9W9RBM0QV4C3LmJAVOcVMb5DR98c+29M5uq9iMCai+Kd6OPXvQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761047211; c=relaxed/simple; bh=WU3OpDiHSBOB5eonlPoaP8MJGbmszqupW5dQlbeASiQ=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=YXywNXrYRDfw5Y+gX0MfcAhYSIdQozGgT2XBzItlzSlvupEuBELi3Zm7PtcODdCJ9lzEvZyz78A15IMgntAdnNmHOPzaPl2r+s74yslcwcHDX6wd0GNuXEk+H8qZtBprTiPy/e6ywmnOUjxdeFzLVPdTEqsnB06Gz3AjRRu5zBE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=R+fux4gZ; 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="R+fux4gZ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0C19CC4CEF1; Tue, 21 Oct 2025 11:46:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1761047210; bh=WU3OpDiHSBOB5eonlPoaP8MJGbmszqupW5dQlbeASiQ=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=R+fux4gZGrE0eeTJwEv601jLFgtJ5sHhYyPEXEZ52Nsx7bKXM95tGjSI75ndyNtl8 hjx1gNLTcONiC8gGPSoNrwLK8ArglmET+G3JonAOc2p5qoECjyAlJqwbJgG0m0DIdH sT2ui+JJ+fMuZwdQPMPW6t6k3jYUCuJsM5tsocI72ENXrOhLEZ+lHVL4pWYMps71ip r+xQmnpEclJs5QVBmAlzIJrPnF85WGImN3pNZV76rt80YThtQ0YrhQDYH0IDJLW7+N pPMBn+VEcRlzA9qKjk7gFWqSmKYcMUh4fflPmLBCQ7Xls14CuAio9lrdJz1zExSJQu f2Mj0GrQUrTRg== From: Christian Brauner Date: Tue, 21 Oct 2025 13:43:40 +0200 Subject: [PATCH RFC DRAFT 34/50] selftests/namespaces: add listns() wrapper Precedence: bulk X-Mailing-List: cgroups@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20251021-work-namespace-nstree-listns-v1-34-ad44261a8a5b@kernel.org> References: <20251021-work-namespace-nstree-listns-v1-0-ad44261a8a5b@kernel.org> In-Reply-To: <20251021-work-namespace-nstree-listns-v1-0-ad44261a8a5b@kernel.org> To: linux-fsdevel@vger.kernel.org, Josef Bacik , Jeff Layton Cc: Jann Horn , Mike Yuan , =?utf-8?q?Zbigniew_J=C4=99drzejewski-Szmek?= , Lennart Poettering , Daan De Meyer , Aleksa Sarai , Amir Goldstein , Tejun Heo , Johannes Weiner , Thomas Gleixner , Alexander Viro , Jan Kara , linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, bpf@vger.kernel.org, Eric Dumazet , Jakub Kicinski , netdev@vger.kernel.org, Arnd Bergmann , Christian Brauner X-Mailer: b4 0.15-dev-96507 X-Developer-Signature: v=1; a=openpgp-sha256; l=1405; i=brauner@kernel.org; h=from:subject:message-id; bh=WU3OpDiHSBOB5eonlPoaP8MJGbmszqupW5dQlbeASiQ=; b=owGbwMvMwCU28Zj0gdSKO4sYT6slMWR8L3wnulyI9cu5nVPmeqhfyj6d8v7bdKmc2XLyO3MmV C89v2FuRUcpC4MYF4OsmCKLQ7tJuNxynorNRpkaMHNYmUCGMHBxCsBE9p9n+Cvxynb7lp2qlw1a uGb+jJmsmnLqv/NBu8P7ps2Rm37JbU8Lwz/jnyz/nVhVlYQTkz6FfOIOK66b5SPKHZLT8XNuYuG Vw7wA X-Developer-Key: i=brauner@kernel.org; a=openpgp; fpr=4880B8C9BD0E5106FC070F4F7B3C391EFEA93624 Add a wrapper for the listns() system call. Signed-off-by: Christian Brauner --- tools/testing/selftests/namespaces/wrappers.h | 35 +++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) diff --git a/tools/testing/selftests/namespaces/wrappers.h b/tools/testing/selftests/namespaces/wrappers.h new file mode 100644 index 000000000000..9741a64a5b1d --- /dev/null +++ b/tools/testing/selftests/namespaces/wrappers.h @@ -0,0 +1,35 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include +#include +#include +#include + +#ifndef __SELFTESTS_NAMESPACES_WRAPPERS_H__ +#define __SELFTESTS_NAMESPACES_WRAPPERS_H__ + +#ifndef __NR_listns + #if defined __alpha__ + #define __NR_listns 580 + #elif defined _MIPS_SIM + #if _MIPS_SIM == _MIPS_SIM_ABI32 /* o32 */ + #define __NR_listns 4470 + #endif + #if _MIPS_SIM == _MIPS_SIM_NABI32 /* n32 */ + #define __NR_listns 6470 + #endif + #if _MIPS_SIM == _MIPS_SIM_ABI64 /* n64 */ + #define __NR_listns 5470 + #endif + #else + #define __NR_listns 470 + #endif +#endif + +static inline int sys_listns(const struct ns_id_req *req, __u64 *ns_ids, + size_t nr_ns_ids, unsigned int flags) +{ + return syscall(__NR_listns, req, ns_ids, nr_ns_ids, flags); +} + +#endif /* __SELFTESTS_NAMESPACES_WRAPPERS_H__ */ -- 2.47.3