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Thu, 05 Feb 2026 09:26:46 -0800 (PST) From: Warner Losh Date: Thu, 05 Feb 2026 10:26:39 -0700 Subject: [PATCH 06/24] bsd-user: Add host_to_target_uuid for uuidgen(2) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260205-bsd-user-claude-v1-6-8d8ff0035372@bsdimp.com> References: <20260205-bsd-user-claude-v1-0-8d8ff0035372@bsdimp.com> In-Reply-To: <20260205-bsd-user-claude-v1-0-8d8ff0035372@bsdimp.com> To: qemu-devel@nongnu.org Cc: =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Kyle Evans , =?utf-8?q?Marc-Andr=C3=A9_Lureau?= , Paolo Bonzini , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Riku Voipio , Warner Losh , Stacey Son X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=2197; i=imp@bsdimp.com; h=from:subject:message-id; bh=98kWg2356QW8wyWPrlsuqf7iVrghL8bWmO1wpYrNWdM=; b=owEBbQKS/ZANAwAKAWwc0Sh9sBEAAcsmYgBphNLaMQd1g4SHJp474WWkYLHQZrkb6G6zLmixZ Z9vXJfP/QCJAjMEAAEKAB0WIQQgNfiUsAqjz3zN4bdsHNEofbARAAUCaYTS2gAKCRBsHNEofbAR ACz6D/0RtzwqS8b8YhKNbc35Xbfb9A279oanow2DMHtMSwizYhNXK28CQho6Zhwye68T2bWfdXN LCWuNsu4IAOAwJXGXCJal9j5ggl84YDcFOU1nRCnnUJ9VKR3mPVy6wHTcVdVQI+sdNfA7t4HNqa dsoScG2CT9+vVhdiZYAmLE9OtNAKJFW1d0WWMdVzvc3rLSJMOJ6vchpBi24IIbB+Hm81mcHMZIC twYH7nLGyzJiGSsJe1CfxdoMEupNrim3CjAzP57ocBWN7cDv/tU6tlu9qmXacxHQbbephAJy0I8 IHawhIa9gdeX7ZcGlUEPHYii364UGW62fd9H0rOb4VZxgClolV1zKOuiyjtOtptk0YO9J7M0SPP QX4y86jxFMyg5ElRqJrqYvcOYYrHzJKV7MzkyxWLUNkHRB0fWJnpYNzcjvqtqhuFpXrV0Ah1M7I i38tImbL2+UtzK/wuC71Xm2gbc33Js6rKFvwD20SbDlh3YMobYobsUO3PqPPmQiwLAMOQSe0yLi RjC5wHgR35LjDnsUuYSB+AtJg1b26mNAqo0m5jxDbsZwNyhDS2xVKwwal+akSpy98779u0Fc+xA OssWAZ4zJLOPeZxA9xSV9rwNu+iMvD50Fh/Pon+yNfVHj1GibrqXQjvkRU2y1Jw8AeCtEyVQaTj CAhEf6Bi5VxkUwg== X-Developer-Key: i=imp@bsdimp.com; a=openpgp; fpr=2035F894B00AA3CF7CCDE1B76C1CD1287DB01100 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: none client-ip=2001:4860:4864:20::2e; envelope-from=imp@bsdimp.com; helo=mail-oa1-x2e.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @bsdimp-com.20230601.gappssmtp.com) X-ZM-MESSAGEID: 1770312536091154100 From: Stacey Son Add host_to_target_uuid() to convert host struct uuid to target ABI for the uuidgen(2) syscall. Signed-off-by: Stacey Son Signed-off-by: Warner Losh Reviewed-by: Richard Henderson --- bsd-user/bsd-misc.c | 46 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) diff --git a/bsd-user/bsd-misc.c b/bsd-user/bsd-misc.c new file mode 100644 index 0000000000..d2107b2f85 --- /dev/null +++ b/bsd-user/bsd-misc.c @@ -0,0 +1,46 @@ +/* + * BSD misc system call conversions routines + * + * Copyright (c) 2013 Stacey D. Son + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + */ +#include "qemu/osdep.h" + +#include + +#include "qemu.h" +#include "qemu-bsd.h" + +/* + * BSD uuidgen(2) struct uuid conversion + */ +abi_long host_to_target_uuid(abi_ulong target_addr, struct uuid *host_uuid) +{ + struct target_uuid *target_uuid; + + if (!lock_user_struct(VERIFY_WRITE, target_uuid, target_addr, 0)) { + return -TARGET_EFAULT; + } + __put_user(host_uuid->time_low, &target_uuid->time_low); + __put_user(host_uuid->time_mid, &target_uuid->time_mid); + __put_user(host_uuid->time_hi_and_version, + &target_uuid->time_hi_and_version); + host_uuid->clock_seq_hi_and_reserved =3D + target_uuid->clock_seq_hi_and_reserved; + host_uuid->clock_seq_low =3D target_uuid->clock_seq_low; + memcpy(host_uuid->node, target_uuid->node, TARGET_UUID_NODE_LEN); + unlock_user_struct(target_uuid, target_addr, 1); + return 0; +} --=20 2.52.0