From patchwork Sun Jan 2 01:54:48 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Samuel Thibault X-Patchwork-Id: 49446 Return-Path: X-Original-To: patchwork@sourceware.org Delivered-To: patchwork@sourceware.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id E5E093858016 for ; Sun, 2 Jan 2022 01:55:14 +0000 (GMT) X-Original-To: libc-alpha@sourceware.org Delivered-To: libc-alpha@sourceware.org Received: from hera.aquilenet.fr (hera.aquilenet.fr [185.233.100.1]) by sourceware.org (Postfix) with ESMTPS id 00DCE3858D28 for ; Sun, 2 Jan 2022 01:54:56 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 00DCE3858D28 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=ens-lyon.org Authentication-Results: sourceware.org; spf=fail smtp.mailfrom=ens-lyon.org Received: from localhost (localhost [127.0.0.1]) by hera.aquilenet.fr (Postfix) with ESMTP id 5F7C9365; Sun, 2 Jan 2022 02:54:53 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at aquilenet.fr Received: from hera.aquilenet.fr ([127.0.0.1]) by localhost (hera.aquilenet.fr [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id B2Dm8pjDmwq0; Sun, 2 Jan 2022 02:54:51 +0100 (CET) Received: from begin (unknown [IPv6:2a01:cb19:956:1b00:de41:a9ff:fe47:ec49]) by hera.aquilenet.fr (Postfix) with ESMTPSA id 21531A4; Sun, 2 Jan 2022 02:54:50 +0100 (CET) Received: from samy by begin with local (Exim 4.95) (envelope-from ) id 1n3q5A-009z6m-T3; Sun, 02 Jan 2022 02:54:48 +0100 From: Samuel Thibault To: libc-alpha@sourceware.org Subject: [hurd,commited] hurd: Implement _S_msg_get_dtable Date: Sun, 2 Jan 2022 02:54:48 +0100 Message-Id: <20220102015448.2379845-1-samuel.thibault@ens-lyon.org> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 X-Spamd-Bar: ++++ X-Rspamd-Server: hera Authentication-Results: hera.aquilenet.fr; none X-Rspamd-Queue-Id: 5F7C9365 X-Spamd-Result: default: False [4.90 / 15.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[3]; TO_DN_SOME(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MIME_GOOD(-0.10)[text/plain]; R_MISSING_CHARSET(2.50)[]; BROKEN_CONTENT_TYPE(1.50)[]; RCVD_COUNT_THREE(0.00)[3]; MID_CONTAINS_FROM(1.00)[]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; RCVD_TLS_LAST(0.00)[] X-Spam-Status: No, score=-11.7 required=5.0 tests=BAYES_00, GIT_PATCH_0, JMQ_SPF_NEUTRAL, KAM_DMARC_STATUS, SPF_HELO_PASS, SPF_NEUTRAL, TXREP autolearn=ham autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: commit-hurd@gnu.org Errors-To: libc-alpha-bounces+patchwork=sourceware.org@sourceware.org Sender: "Libc-alpha" This will be needed for implementing lsof. --- hurd/hurdmsg.c | 51 ++++++++++++++++++++++++++++++++++++++++++++++---- 1 file changed, 47 insertions(+), 4 deletions(-) diff --git a/hurd/hurdmsg.c b/hurd/hurdmsg.c index 2b9b214102..4e6ddf2836 100644 --- a/hurd/hurdmsg.c +++ b/hurd/hurdmsg.c @@ -385,15 +385,58 @@ _S_msg_set_environment (mach_port_t msgport, mach_port_t auth, } -/* XXX */ - kern_return_t _S_msg_get_dtable (mach_port_t process, - mach_port_t refport, + mach_port_t auth, portarray_t *dtable, mach_msg_type_name_t *dtablePoly, mach_msg_type_number_t *dtableCnt) -{ return EOPNOTSUPP; } +{ + mach_port_t *ports; + mach_msg_type_number_t i; + error_t err; + + AUTHCHECK; + + HURD_CRITICAL_BEGIN; + __mutex_lock (&_hurd_dtable_lock); + + if (err = __vm_allocate (__mach_task_self (), (vm_address_t *) &ports, + _hurd_dtablesize * sizeof(mach_port_t), 1)) + goto out; + + for (i = 0; i < _hurd_dtablesize; i++) + { + struct hurd_fd *cell = _hurd_dtable[i]; + if (cell == NULL) + ports[i] = MACH_PORT_NULL; + else + { + __spin_lock (&cell->port.lock); + if (cell->port.port == MACH_PORT_NULL) + ports[i] = MACH_PORT_NULL; + else + { + ports[i] = cell->port.port; + /* We will move this send right. */ + __mach_port_mod_refs (__mach_task_self (), ports[i], + MACH_PORT_RIGHT_SEND, +1); + } + __spin_unlock (&cell->port.lock); + } + } + + *dtable = ports; + *dtablePoly = MACH_MSG_TYPE_MOVE_SEND; + *dtableCnt = _hurd_dtablesize; + +out: + __mutex_unlock (&_hurd_dtable_lock); + HURD_CRITICAL_END; + return err; +} + +/* XXX */ kern_return_t _S_msg_set_dtable (mach_port_t process,