From patchwork Tue Dec 18 23:04:37 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Samuel Thibault X-Patchwork-Id: 10736627 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 055BC17E1 for ; Tue, 18 Dec 2018 23:50:31 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E7E642B0A3 for ; Tue, 18 Dec 2018 23:50:30 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E3E2C2B0AE; Tue, 18 Dec 2018 23:50:30 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 70CA62B0A3 for ; Tue, 18 Dec 2018 23:50:30 +0000 (UTC) Received: from localhost ([::1]:56895 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gZP89-00034l-Lc for patchwork-qemu-devel@patchwork.kernel.org; Tue, 18 Dec 2018 18:50:29 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:41216) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gZORc-0000jg-Cj for qemu-devel@nongnu.org; Tue, 18 Dec 2018 18:06:34 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gZORZ-0005Kz-Oc for qemu-devel@nongnu.org; Tue, 18 Dec 2018 18:06:32 -0500 Received: from hera.aquilenet.fr ([2a0c:e300::1]:57924) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gZORZ-00050D-6b for qemu-devel@nongnu.org; Tue, 18 Dec 2018 18:06:29 -0500 Received: from localhost (localhost [127.0.0.1]) by hera.aquilenet.fr (Postfix) with ESMTP id 4774F28B9; Wed, 19 Dec 2018 00:05:22 +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 xKDur4kkzaQ4; Wed, 19 Dec 2018 00:05:21 +0100 (CET) Received: from function.home (unknown [IPv6:2a01:cb19:181:c200:9eb6:d0ff:fe88:c3c7]) by hera.aquilenet.fr (Postfix) with ESMTPSA id BEFA12935; Wed, 19 Dec 2018 00:04:47 +0100 (CET) Received: from samy by function.home with local (Exim 4.91) (envelope-from ) id 1gZOPt-0007M7-Cy; Wed, 19 Dec 2018 00:04:45 +0100 From: Samuel Thibault To: qemu-devel@nongnu.org, peter.maydell@linaro.org Date: Wed, 19 Dec 2018 00:04:37 +0100 Message-Id: <20181218230442.27887-60-samuel.thibault@ens-lyon.org> X-Mailer: git-send-email 2.19.2 In-Reply-To: <20181218230442.27887-1-samuel.thibault@ens-lyon.org> References: <20181218230442.27887-1-samuel.thibault@ens-lyon.org> MIME-Version: 1.0 X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2a0c:e300::1 Subject: [Qemu-devel] [PULL 59/64] slirp: factor out guestfwd addition checks X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: =?utf-8?q?Marc-Andr=C3=A9_Lureau?= , Samuel Thibault , stefanha@redhat.com, jan.kiszka@siemens.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Marc-André Lureau This will allow reusing the function in a following patch. Signed-off-by: Marc-André Lureau Signed-off-by: Samuel Thibault --- slirp/misc.c | 7 ------- slirp/slirp.c | 23 +++++++++++++++++++++-- 2 files changed, 21 insertions(+), 9 deletions(-) diff --git a/slirp/misc.c b/slirp/misc.c index a0f104be5e..eae9596a55 100644 --- a/slirp/misc.c +++ b/slirp/misc.c @@ -37,13 +37,6 @@ int add_exec(struct gfwd_list **ex_ptr, void *chardev, const char *cmdline, { struct gfwd_list *tmp_ptr; - /* First, check if the port is "bound" */ - for (tmp_ptr = *ex_ptr; tmp_ptr; tmp_ptr = tmp_ptr->ex_next) { - if (port == tmp_ptr->ex_fport && - addr.s_addr == tmp_ptr->ex_addr.s_addr) - return -1; - } - tmp_ptr = *ex_ptr; *ex_ptr = g_new0(struct gfwd_list, 1); (*ex_ptr)->ex_fport = port; diff --git a/slirp/slirp.c b/slirp/slirp.c index c022644888..6a4d506d49 100644 --- a/slirp/slirp.c +++ b/slirp/slirp.c @@ -1046,9 +1046,11 @@ int slirp_add_hostfwd(Slirp *slirp, int is_udp, struct in_addr host_addr, return 0; } -int slirp_add_exec(Slirp *slirp, void *chardev, const char *cmdline, - struct in_addr *guest_addr, int guest_port) +static bool +check_guestfwd(Slirp *slirp, struct in_addr *guest_addr, int guest_port) { + struct gfwd_list *tmp_ptr; + if (!guest_addr->s_addr) { guest_addr->s_addr = slirp->vnetwork_addr.s_addr | (htonl(0x0204) & ~slirp->vnetwork_mask.s_addr); @@ -1057,6 +1059,23 @@ int slirp_add_exec(Slirp *slirp, void *chardev, const char *cmdline, slirp->vnetwork_addr.s_addr || guest_addr->s_addr == slirp->vhost_addr.s_addr || guest_addr->s_addr == slirp->vnameserver_addr.s_addr) { + return false; + } + + /* check if the port is "bound" */ + for (tmp_ptr = slirp->guestfwd_list; tmp_ptr; tmp_ptr = tmp_ptr->ex_next) { + if (guest_port == tmp_ptr->ex_fport && + guest_addr->s_addr == tmp_ptr->ex_addr.s_addr) + return false; + } + + return true; +} + +int slirp_add_exec(Slirp *slirp, void *chardev, const char *cmdline, + struct in_addr *guest_addr, int guest_port) +{ + if (!check_guestfwd(slirp, guest_addr, guest_port)) { return -1; }