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Tue, 24 Feb 2026 06:40:59 -0800 (PST) From: Warner Losh Date: Tue, 24 Feb 2026 07:40:39 -0700 Subject: [PATCH v4 15/24] bsd-user: Add do_bsd_uuidgen implementation MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260224-bsd-user-claude-v4-15-8ee5ae17056f@bsdimp.com> References: <20260224-bsd-user-claude-v4-0-8ee5ae17056f@bsdimp.com> In-Reply-To: <20260224-bsd-user-claude-v4-0-8ee5ae17056f@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 , Pierrick Bouvier X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=1530; i=imp@bsdimp.com; h=from:subject:message-id; bh=u6/MfK56Y5oDxiiGMsgHlq41F1LzCcN51k906mlfNRE=; b=owEBbQKS/ZANAwAKAWwc0Sh9sBEAAcsmYgBpnbhnkNqTk3vYfb7fitdvRt795aW/g6XPQuOTh biIRLPU7RSJAjMEAAEKAB0WIQQgNfiUsAqjz3zN4bdsHNEofbARAAUCaZ24ZwAKCRBsHNEofbAR ACnaEACr7je7W5VzVdCeud4sXn3ct4xaXhua7xR4n3UQoz0y9f+0+N3JvJaoqffhv5FJBgkqv57 Yu87Zhj9cZZtBLi6X2m6ECHOygMVSxQGH2LdgX81YV33c95GTKZMKSJvsO/TBe3HyBH7+V1ERH0 CcERU2sBGv1ZoZj76yMWEBgXZp5mLP/Vu36ndLBM8KaD56vYmGfDLKZw+PrBVSenghvcUT8DNa4 CggsKqx+MexbKp/plFkkF6W+clP45Y7XTaO94Y28Wyrk5DcJps8I1DEBa6b+FG6npl+QbUTmJMN AsB2/3JeMXqK+7GIqY6lOYdWnPwIXjpwafYxoixHI1/KaoQypplcPab3+iYxkymBCFm3sgAHort NUZVqcv4x7oq+yjP9tbu+vYp8upDTHn3OQbbm59I4cBZFBhku9Hvz/rKCUMNk5JBkGudIICShjK 71wRgnOpMWzMiX3OyfmBUYvVrxB7IrCNROmgnU2/HzfegPtGsslhTROGSKtnhGAQxWL+OL1x3rF gsqBISP9AvMlbsxbizwHApGlGV47jNPdQHEaXCB5GRHkE9zJIPGgj0qqF8kBp71SQvN96q5/YrA X/HqcHq4n/OadfmHIS1V8IrVMf6sQlZp0fYTbLX6orTQ5M+GOylc0yz1E2KFWquFvodYCbSPZUp t/T5IDbdZXnfz9Q== 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=2607:f8b0:4864:20::333; envelope-from=imp@bsdimp.com; helo=mail-ot1-x333.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: 1771944148961158500 From: Stacey Son Add implementation of uuidgen(2) syscall that generates UUIDs and converts them to target ABI format. Signed-off-by: Stacey Son Reviewed-by: Pierrick Bouvier Signed-off-by: Warner Losh --- bsd-user/bsd-misc.h | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) diff --git a/bsd-user/bsd-misc.h b/bsd-user/bsd-misc.h index 7587ffd605..9f1cc8a0cd 100644 --- a/bsd-user/bsd-misc.h +++ b/bsd-user/bsd-misc.h @@ -32,6 +32,39 @@ static inline abi_long do_bsd_reboot(abi_long how) return -TARGET_ENOSYS; } =20 +/* uuidgen(2) */ +static inline abi_long do_bsd_uuidgen(abi_ulong target_addr, int count) +{ + int i; + abi_long ret; + g_autofree struct uuid *host_uuid =3D NULL; + + /* + * 2048 is the kernel limit, but there's no #define for it, nor any sy= sctl + * to query it. + */ + if (count < 1 || count > 2048) { + return -TARGET_EINVAL; + } + + host_uuid =3D g_malloc(count * sizeof(struct uuid)); + + ret =3D get_errno(uuidgen(host_uuid, count)); + if (is_error(ret)) { + goto out; + } + for (i =3D 0; i < count; i++) { + ret =3D host_to_target_uuid(target_addr + + (abi_ulong)(sizeof(struct target_uuid) * i), &host_uuid[i]); + if (is_error(ret)) { + break; + } + } + +out: + return ret; +} + /* getdtablesize(2) */ static inline abi_long do_bsd_getdtablesize(void) { --=20 2.52.0