From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists1p.gnu.org (lists1p.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id BC685C982DA for ; Sat, 19 Sep 2026 16:52:52 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists1p.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1x7yFL-0002sO-6n; Sat, 19 Sep 2026 12:49:03 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists1p.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1x7yFJ-0002s6-6X for qemu-devel@nongnu.org; Sat, 19 Sep 2026 12:49:01 -0400 Received: from mail-oi2-x11.google.com ([2607:f8b0:4864:32::11]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1x7yFH-0008He-HX for qemu-devel@nongnu.org; Sat, 19 Sep 2026 12:49:00 -0400 Received: by mail-oi2-x11.google.com with SMTP id 46e09a7af769-80a71781323so749536a34.1 for ; Sat, 19 Sep 2026 09:48:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bsdimp-com.20251104.gappssmtp.com; s=20251104; t=1789836538; x=1790441338; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to:content-type; bh=1UnoJZ2salmo3FsO31OG+t/xnG8LyqG6BerW+1cdcvI=; b=n23uQECN0FTwMNuYdI97ipBStH3QNpNh5MXfh5d2lI8m6kg0hELypHH6/mTYrr+buT apcMRP7R5MyH2We/1i5SOYrg1zMG3Y9v9LeVwyyzrsomiQhaz86LdByu9oGIFEjDydHG T0J1k8au4uhBszjv6HodxEhALVUTJFBQje4qP04W0Zq2ii2qKcHqKCikFHxBC/K6/4KT +h4N9j4BTKQmWJ91TtmkMXd63GsHti/rSzfsvd/SfkLAceRcqtcGkoPwYmcgucTbD79Y c8lHO4Ay6SYAmRmVTJw3Y+zasOLy72jWe8PG9RPDkCHZg8FlqGT7wmILyvLI7gPsA7Jb mXPA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1789836538; x=1790441338; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to:content-type; bh=1UnoJZ2salmo3FsO31OG+t/xnG8LyqG6BerW+1cdcvI=; b=J84AUHjx1+kjB1lpQteTnXodK+6dMy+PPL2LdjNgpNej1dFxawja2GDwrEkPXyxMNu mwL6iUXhK9ZyCCBcmyArO+PTy/3niIqTZL4pu7Kqzf1PgY+UnvKwEMZy5neZAhfpbKTr +cnbhVxkAgoVTJpK8XNwBQkpE+ipzv2Tixpmc4xTIaGA6WlxH5q6LCxFW6ydxXjR/LQ9 lXi23kRt5aR2amwghPWhqXiXjEZfB0HBI9LDH5spUh3I+8aS43u05b5XFzIvVC6XlV6r 1TIMfjKXxvFXGDv1MmrPVyTctUUpb5z2aYmtMkuzW3YYBZE3jBS1K/dNIaWkJMiEVotI 4UUA== X-Gm-Message-State: AFuF++mqcfbhyL3MLRnQ3dYQneEz8rToULwVVaMUJyOfvbB6Wm6jpf8T NFJKcETzEFMHRRZc4aCAQhgUyM9flTqZQf9xZK1wYi1T3HVsAqi6JtRYdSWTsM1snkCsap2gxgp ILPzx83w= X-Gm-Gg: AYBFou1R03Pe9LMyyqy9d/HK1EeV/F3kPURMlnyzLz5Q89kRAqsd/uonOm9d0LegWio j8TiwOC8We7Srbo8aC8oCjOUk6R3OFNtHxVVdJ1RxzmZFA48oeZZ5yRaS5fHsNF5308B4aiiSyC R5ujVehsAcFfnry9r4jswUe0d3N3gCSFTY1zY+14n/hPDtEaSKfCo6Q8lfHvtoM17oHaci/hgCc 3A4SAw8YIDW/y8E3RqBvTuTRBCmOHUKrs0UbU8v5AplI1jFbMGt9Yx231PlKmu93mxTKkqYcftY WyVURTxQzZoIW6cuM2G+DhvhS5GU/aWGGXG0KISaiIfMVh4PkNHW0zLwRdzqm20dbnGlJObtzqA ovCtwYAaCK4+Y8D8/doeVZwaKSEVYFXMba355KdUrN7AsX5GGfl07AJuEP0nTS3eSPAveqoGn+o UwyGZrKJqPNKVkKeJ/jcRYzhxa1kNS1iwVjQbMczfAdk9md+ih7bCJ/dMVsA== X-Received: by 2002:a05:6820:8591:10b0:6cd:3fdc:a93a with SMTP id 006d021491bc7-6cd3fece101mr1799431eaf.87.1789836538549; Sat, 19 Sep 2026 09:48:58 -0700 (PDT) Received: from rebo.bsdimp.com ([50.253.99.174]) by smtp.gmail.com with ESMTPSA id 006d021491bc7-6cd35712c0csm3281927eaf.11.2026.09.19.09.48.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 19 Sep 2026 09:48:57 -0700 (PDT) From: Warner Losh To: qemu-devel@nongnu.org Cc: Warner Losh , Kyle Evans , Stacey Son , Kyle Evans , Pierrick Bouvier , Richard Henderson Subject: [PULL 16/41] bsd-user: Add socket shims socketpair through shutdown Date: Sat, 19 Sep 2026 10:47:44 -0600 Message-ID: <20260919164810.70151-17-imp@bsdimp.com> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260919164810.70151-1-imp@bsdimp.com> References: <20260919164810.70151-1-imp@bsdimp.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: none client-ip=2607:f8b0:4864:32::11; envelope-from=imp@bsdimp.com; helo=mail-oi2-x11.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, 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Complete bsd-socket.h with socketpair, sendto, recvfrom, socket, and shutdown system call shims. Signed-off-by: Stacey Son Signed-off-by: Kyle Evans Assisted-by: Claude Opus 4.6 (1M context) Reviewed-by: Pierrick Bouvier Acked-by: Richard Henderson Signed-off-by: Warner Losh --- bsd-user/bsd-socket.h | 116 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 116 insertions(+) diff --git a/bsd-user/bsd-socket.h b/bsd-user/bsd-socket.h index c786d6717a..43aacce5dc 100644 --- a/bsd-user/bsd-socket.h +++ b/bsd-user/bsd-socket.h @@ -164,4 +164,120 @@ static inline abi_long do_bsd_getsockname(int fd, abi_ulong target_addr, return ret; } +/* socketpair(2) */ +static inline abi_long do_bsd_socketpair(int domain, int type, int protocol, + abi_ulong target_tab_addr) +{ + int tab[2]; + abi_long ret; + + if (!access_ok(VERIFY_WRITE, target_tab_addr, sizeof(tab[0]) * 2)) { + return -TARGET_EFAULT; + } + ret = get_errno(socketpair(domain, type, protocol, tab)); + if (!is_error(ret)) { + if (put_user_s32(tab[0], target_tab_addr) || + put_user_s32(tab[1], target_tab_addr + sizeof(tab[0]))) { + ret = -TARGET_EFAULT; + } + } + return ret; +} + +/* sendto(2) */ +static inline abi_long do_bsd_sendto(int fd, abi_ulong msg, size_t len, + int flags, abi_ulong target_addr, + socklen_t addrlen) +{ + struct sockaddr *saddr; + void *host_msg; + abi_long ret; + + if ((int)addrlen < 0) { + return -TARGET_EINVAL; + } + if (len != 0) { + host_msg = lock_user(VERIFY_READ, msg, len, 1); + if (!host_msg) { + return -TARGET_EFAULT; + } + } else { + host_msg = NULL; + } + if (target_addr) { + saddr = alloca(addrlen + 1); + ret = target_to_host_sockaddr(saddr, target_addr, addrlen); + if (is_error(ret)) { + unlock_user(host_msg, msg, 0); + return ret; + } + ret = get_errno(safe_sendto(fd, host_msg, len, flags, saddr, addrlen)); + } else { + ret = get_errno(send(fd, host_msg, len, flags)); + } + unlock_user(host_msg, msg, 0); + return ret; +} + +/* recvfrom(2) */ +static inline abi_long do_bsd_recvfrom(int fd, abi_ulong msg, size_t len, + int flags, abi_ulong target_addr, + abi_ulong target_addrlen) +{ + socklen_t addrlen; + struct sockaddr *saddr; + void *host_msg; + abi_long ret; + + host_msg = lock_user(VERIFY_WRITE, msg, len, 0); + if (!host_msg) { + return -TARGET_EFAULT; + } + if (target_addr) { + if (get_user_u32(addrlen, target_addrlen)) { + ret = -TARGET_EFAULT; + goto fail; + } + if ((int)addrlen < 0) { + ret = -TARGET_EINVAL; + goto fail; + } + saddr = alloca(addrlen + 1); + ret = get_errno(safe_recvfrom(fd, host_msg, len, flags, saddr, + &addrlen)); + } else { + saddr = NULL; /* To keep compiler quiet. */ + ret = get_errno(recv(fd, host_msg, len, flags)); + } + if (!is_error(ret)) { + if (target_addr) { + if (is_error(host_to_target_sockaddr(target_addr, saddr, addrlen))) { + ret = -TARGET_EFAULT; + goto fail; + } else if (put_user_u32(addrlen, target_addrlen)) { + ret = -TARGET_EFAULT; + goto fail; + } + } + unlock_user(host_msg, msg, ret); + } else { +fail: + unlock_user(host_msg, msg, 0); + } + return ret; +} + +/* socket(2) */ +static inline abi_long do_bsd_socket(abi_long domain, abi_long type, + abi_long protocol) +{ + return get_errno(socket(domain, type, protocol)); +} + +/* shutdown(2) */ +static inline abi_long do_bsd_shutdown(abi_long s, abi_long how) +{ + return get_errno(shutdown(s, how)); +} + #endif /* BSD_SOCKET_H */ -- 2.55.0