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Thu, 05 Feb 2026 09:27:01 -0800 (PST) From: Warner Losh Date: Thu, 05 Feb 2026 10:26:52 -0700 Subject: [PATCH 19/24] bsd-user: Add do_bsd_msgctl implementation MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260205-bsd-user-claude-v1-19-8d8ff0035372@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=2110; i=imp@bsdimp.com; h=from:subject:message-id; bh=4tJJWdQ8fj2evNvz3OTCt/aRpOYoQe282kdYHXwhQsk=; b=owEBbQKS/ZANAwAKAWwc0Sh9sBEAAcsmYgBphNLbTL9Flc+zhqaIo5IlyYSqGq6sbFx2xrZl0 YV2BfSqeuGJAjMEAAEKAB0WIQQgNfiUsAqjz3zN4bdsHNEofbARAAUCaYTS2wAKCRBsHNEofbAR AGDMEADSxVy/wWqJ86dzY1EVI3Xp8UjWFyK2dEHnSu4Jsevib6B9hAbiqRa0MfFGMECyBdo2IqD QkxoQVGdixvuVpndEdXLXrZ4GWr8xvfJHBk8Q4QX7Jfxtqpq4KO2/bAJt02SPiik27qzrGGffXk abSQxr6UCzG+l0FF+T3PciTOhKaIEUiVpVOywjIfP2ZM+WdtEa2VLsR70eTYa3oEHhxv+amE+yl JSxHWWv5AILSn3O7oIIBCeXTrgIkDlF7lEMymPX6rwyLKKmxzzVhRBXc0kCZP/8MZ0uaPZnEZrX tR5sN4x6LrZcU4ahMsCbUfUhCZ/luiMT8WOmoOLLOM3oCLJSAUkuIoLD0CG1I9j7YXKLK8mvUl4 jIH2/G9ZBwDiWr2iIPgFASfS47Bv73icPZ2662+vQnK/ZgAhApVPP2g8N+S2v5AElulRUGsfEI8 FZKnsLnZ7PrV88tpe2Hxj9rbpP/HadwlccaBm7l3oN7Dc3PVHm0UMIYrdXkxbuHt/A6SPplNH1e j3izZQqsMS+YQs8UkDKJ/dF94reWcdirNWb7yVG8/AzZ/a99E8Hbg7116BIaiXOPGzsdzpKUqgA QvPavJA0mFyfudAxGYCGiXE9iKAld1l+1iIqq1hgZgXN5oJosikjkej82PRgxQzP47LdgDlCvFR PxUfn8saLnNHtrA== 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::34; envelope-from=imp@bsdimp.com; helo=mail-oa1-x34.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: 1770312583059158500 From: Stacey Son Add implementation of msgctl(2) syscall for System V message queue control operations. Handles command translation and structure conversions for IPC_STAT/IPC_SET/IPC_RMID operations. Signed-off-by: Stacey Son Signed-off-by: Warner Losh Reviewed-by: Richard Henderson --- bsd-user/bsd-misc.h | 53 +++++++++++++++++++++++++++++++++++++++++++++++++= ++++ 1 file changed, 53 insertions(+) diff --git a/bsd-user/bsd-misc.h b/bsd-user/bsd-misc.h index 81fdfd8351..27f4497d76 100644 --- a/bsd-user/bsd-misc.h +++ b/bsd-user/bsd-misc.h @@ -28,6 +28,12 @@ =20 #include "qemu-bsd.h" =20 +#ifdef MSGMAX +static int bsd_msgmax =3D MSGMAX; +#else +static int bsd_msgmax; +#endif + /* quotactl(2) */ static inline abi_long do_bsd_quotactl(abi_ulong path, abi_long cmd, __unused abi_ulong target_addr) @@ -228,6 +234,53 @@ static inline abi_long do_bsd___semctl(int semid, int = semnum, int target_cmd, return ret; } =20 +/* msgctl(2) */ +static inline abi_long do_bsd_msgctl(int msgid, int target_cmd, abi_long p= tr) +{ + struct msqid_ds dsarg; + abi_long ret =3D -TARGET_EINVAL; + int host_cmd; + + switch (target_cmd) { + case TARGET_IPC_STAT: + host_cmd =3D IPC_STAT; + break; + + case TARGET_IPC_SET: + host_cmd =3D IPC_SET; + break; + + case TARGET_IPC_RMID: + host_cmd =3D IPC_RMID; + break; + + default: + return -TARGET_EINVAL; + } + + switch (host_cmd) { + case IPC_STAT: + case IPC_SET: + if (target_to_host_msqid_ds(&dsarg, ptr)) { + return -TARGET_EFAULT; + } + ret =3D get_errno(msgctl(msgid, host_cmd, &dsarg)); + if (host_to_target_msqid_ds(ptr, &dsarg)) { + return -TARGET_EFAULT; + } + break; + + case IPC_RMID: + ret =3D get_errno(msgctl(msgid, host_cmd, NULL)); + break; + + default: + ret =3D -TARGET_EINVAL; + break; + } + return ret; +} + /* getdtablesize(2) */ static inline abi_long do_bsd_getdtablesize(void) { --=20 2.52.0