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[81.165.242.8]) by smtp.gmail.com with ESMTPSA id w125sm6437713wmb.45.2019.01.07.01.24.13 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Mon, 07 Jan 2019 01:24:13 -0800 (PST) From: tom.deseyn@gmail.com To: qemu-devel@nongnu.org, laurent@vivier.eu Date: Mon, 7 Jan 2019 10:24:00 +0100 Message-Id: <20190107092400.8038-1-tom.deseyn@gmail.com> X-Mailer: git-send-email 2.19.2 In-Reply-To: <199d2900-1f2c-4940-ae2a-d6832501f1f0@vivier.eu> References: <199d2900-1f2c-4940-ae2a-d6832501f1f0@vivier.eu> MIME-Version: 1.0 X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2a00:1450:4864:20::343 Subject: [Qemu-devel] [PATCH v5] Add getsockopt for settable SOL_IPV6 options 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: Tom Deseyn , riku.voipio@iki.fi Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Tom Deseyn v2: default to unimplemented v3: match kernel behavior v4: braces code-style v5: pointer 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..a6f6e9c1f7 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",