From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([209.51.188.92]:50684) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ggQH6-0006fK-Jb for qemu-devel@nongnu.org; Mon, 07 Jan 2019 03:28:45 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ggQH5-0000c0-GK for qemu-devel@nongnu.org; Mon, 07 Jan 2019 03:28:44 -0500 Received: from mail-ed1-x541.google.com ([2a00:1450:4864:20::541]:38376) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1ggQH5-0000bo-AV for qemu-devel@nongnu.org; Mon, 07 Jan 2019 03:28:43 -0500 Received: by mail-ed1-x541.google.com with SMTP id h50so25916ede.5 for ; Mon, 07 Jan 2019 00:28:43 -0800 (PST) From: tom.deseyn@gmail.com Date: Mon, 7 Jan 2019 09:27:51 +0100 Message-Id: <20190107082751.6461-1-tom.deseyn@gmail.com> In-Reply-To: <199d2900-1f2c-4940-ae2a-d6832501f1f0@vivier.eu> References: <199d2900-1f2c-4940-ae2a-d6832501f1f0@vivier.eu> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: [Qemu-devel] [PATCH v4] Add getsockopt for settable SOL_IPV6 options List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org, laurent@vivier.eu Cc: riku.voipio@iki.fi, Tom Deseyn From: Tom Deseyn v2: default to unimplemented v3: match kernel behavior v4: braces code-style Signed-off-by: Tom Deseyn --- linux-user/syscall.c | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 280137da8c..bbcc0e86c6 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -2352,6 +2352,47 @@ static abi_long do_getsockopt(int sockfd, int level, int optname, break; } break; + case SOL_IPV6: + switch (optname) { + case IPV6_MTU_DISCOVER: + case IPV6_MTU: + case IPV6_V6ONLY: + case IPV6_RECVPKTINFO: + case IPV6_UNICAST_HOPS: + case IPV6_MULTICAST_HOPS: + case IPV6_MULTICAST_LOOP: + case IPV6_RECVERR: + case IPV6_RECVHOPLIMIT: + case IPV6_2292HOPLIMIT: + case IPV6_CHECKSUM: { + void* target_addr; + if (get_user_u32(len, optlen)) { + return -TARGET_EFAULT; + } + if (len < 0) { + return -TARGET_EINVAL; + } + lv = sizeof(val); + ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv)); + if (ret < 0) { + return ret; + } + if (lv < len) { + len = lv; + } + if (put_user_u32(len, optlen)) { + return -TARGET_EFAULT; + } + target_addr = lock_user(VERIFY_WRITE, optval_addr, len, 0); + tswap32s((uint32_t*)&val); + memcpy(target_addr, &val, len); + unlock_user(target_addr, optval_addr, len); + break; + } + default: + goto unimplemented; + } + break; default: unimplemented: gemu_log("getsockopt level=%d optname=%d not yet supported\n", -- 2.19.2