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Tue, 24 Feb 2026 06:40:56 -0800 (PST) From: Warner Losh Date: Tue, 24 Feb 2026 07:40:36 -0700 Subject: [PATCH v4 12/24] bsd-user: Add host_to_target_msqid_ds for msgctl(2) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260224-bsd-user-claude-v4-12-8ee5ae17056f@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 , Brooks Davis , Sean Bruno , Mikael Urankar , Richard Henderson X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=1886; i=imp@bsdimp.com; h=from:subject:message-id; bh=gpFtwDCGHbSz2mhNk7LCOdK198vPiqLD6qg22mYpWf4=; b=owEBbQKS/ZANAwAKAWwc0Sh9sBEAAcsmYgBpnbhnmAdqHvYP3AYvsmTLp6auiWI0vgmY5Yfi2 9xTuQeb3PyJAjMEAAEKAB0WIQQgNfiUsAqjz3zN4bdsHNEofbARAAUCaZ24ZwAKCRBsHNEofbAR AHnjD/4y5jtiZ2Ix6X+BqW74T2XmhcEVXtWixjawNdJYezUfTYvygTSFFwey2kuR1jZDnrPELR8 zB5+tIz6M9HZLyxctcMwwrcumRFSS7yn5aOcyCmjlT0wrqXoHjiG1CX3m3WNChKQSknuIW0rIQg GWIt8X4dqrJAeI/XNva0THHp1BK4VKVkRRnolHnp3uxS3WEO77q1yQCmX33phe1JhZbX4n7ClX/ LrI3iNylwWTBB08B/jvz5kZiFcYqvJin2uZ325CS4gqBenTtdxJ7/mA1MUve7IAFqSS5SBcWZpS H9U8kanm4F6Ri/RHubyfx8Zmd2WtDG4ZPQ2DKmau3CKoDg6jubDF2nBxeDBVhJLtigrQ4f5MImt 8sN2mQ5lArQdpnk+SEP7DQvcrPCFDU3dLMmTqmOh7RmevgBXz6YCkfD+b9RJWy2xQX7fqgkEc3W UwTzuUODDUYsHb9v33Wj07PZNV0XHI0pCat/dKrnP2LLncTG+Ejv6h9m1mUaJmlIqB6qqNR0E6X y0aW4Fn6WNMwhkykOWQvbdjEmZkFD2U3Xn0QaVjqIzVDb7g7bRKAsRtuui7C+NekKFr2+fR2wbP qiBJv/MKbplQgBjjAux4aCoFPem2rIPR+g1Z5m+/zI4RzvkmAm2wVv7UXxhNFY70RPrwiO/kCdh zMoj0lZMMN5Q8JA== 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::32a; envelope-from=imp@bsdimp.com; helo=mail-ot1-x32a.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: 1771944313759158500 From: Stacey Son Add host_to_target_msqid_ds() to convert host struct msqid_ds to target format for msgctl(2) IPC_STAT operations. Signed-off-by: Stacey Son Signed-off-by: Brooks Davis Signed-off-by: Sean Bruno Signed-off-by: Mikael Urankar Reviewed-by: Richard Henderson Signed-off-by: Warner Losh --- bsd-user/bsd-misc.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/bsd-user/bsd-misc.c b/bsd-user/bsd-misc.c index 5e5a590227..3e1968718f 100644 --- a/bsd-user/bsd-misc.c +++ b/bsd-user/bsd-misc.c @@ -163,3 +163,30 @@ abi_long target_to_host_msqid_ds(struct msqid_ds *host= _md, =20 return 0; } + +abi_long host_to_target_msqid_ds(abi_ulong target_addr, + struct msqid_ds *host_md) +{ + struct target_msqid_ds *target_md; + + if (!lock_user_struct(VERIFY_WRITE, target_md, target_addr, 0)) { + return -TARGET_EFAULT; + } + + memset(target_md, 0, sizeof(struct target_msqid_ds)); + host_to_target_ipc_perm__locked(&target_md->msg_perm, + &host_md->msg_perm); + + /* msg_first and msg_last are not used by IPC_SET/IPC_STAT in kernel. = */ + __put_user(target_md->msg_cbytes, &host_md->msg_cbytes); + __put_user(target_md->msg_qnum, &host_md->msg_qnum); + __put_user(target_md->msg_qbytes, &host_md->msg_qbytes); + __put_user(target_md->msg_lspid, &host_md->msg_lspid); + __put_user(target_md->msg_lrpid, &host_md->msg_lrpid); + __put_user(target_md->msg_stime, &host_md->msg_stime); + __put_user(target_md->msg_rtime, &host_md->msg_rtime); + __put_user(target_md->msg_ctime, &host_md->msg_ctime); + unlock_user_struct(target_md, target_addr, 1); + + return 0; +} --=20 2.52.0