From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([140.186.70.92]:46233) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RtKSN-0007uE-H6 for qemu-devel@nongnu.org; Fri, 03 Feb 2012 09:49:47 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1RtKSE-0001UF-Vw for qemu-devel@nongnu.org; Fri, 03 Feb 2012 09:49:43 -0500 Received: from afflict.kos.to ([92.243.29.197]:49802) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RtKSE-0001Ta-Lg for qemu-devel@nongnu.org; Fri, 03 Feb 2012 09:49:34 -0500 From: riku.voipio@linaro.org Date: Fri, 3 Feb 2012 16:49:21 +0200 Message-Id: <583359a68922fb91b793a5ad3a2dd4536bf9b99e.1328280144.git.riku.voipio@linaro.org> In-Reply-To: References: Subject: [Qemu-devel] [PATCH 08/19] linux-user: add SO_PEERCRED support for getsockopt List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Akos PASZTORY From: Akos PASZTORY Signed-off-by: Akos PASZTORY Signed-off-by: Riku Voipio --- linux-user/syscall.c | 34 +++++++++++++++++++++++++++++++++- linux-user/syscall_defs.h | 6 ++++++ 2 files changed, 39 insertions(+), 1 deletions(-) diff --git a/linux-user/syscall.c b/linux-user/syscall.c index c6bfcd8..15b8b22 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -1530,9 +1530,41 @@ static abi_long do_getsockopt(int sockfd, int level, int optname, case TARGET_SO_LINGER: case TARGET_SO_RCVTIMEO: case TARGET_SO_SNDTIMEO: - case TARGET_SO_PEERCRED: case TARGET_SO_PEERNAME: goto unimplemented; + case TARGET_SO_PEERCRED: { + struct ucred cr; + socklen_t crlen; + struct target_ucred *tcr; + + if (get_user_u32(len, optlen)) { + return -TARGET_EFAULT; + } + if (len < 0) { + return -TARGET_EINVAL; + } + + crlen = sizeof(cr); + ret = get_errno(getsockopt(sockfd, level, SO_PEERCRED, + &cr, &crlen)); + if (ret < 0) { + return ret; + } + if (len > crlen) { + len = crlen; + } + if (!lock_user_struct(VERIFY_WRITE, tcr, optval_addr, 0)) { + return -TARGET_EFAULT; + } + __put_user(cr.pid, &tcr->pid); + __put_user(cr.uid, &tcr->uid); + __put_user(cr.gid, &tcr->gid); + unlock_user_struct(tcr, optval_addr, 1); + if (put_user_u32(len, optlen)) { + return -TARGET_EFAULT; + } + break; + } /* Options with 'int' argument. */ case TARGET_SO_DEBUG: optname = SO_DEBUG; diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h index 2857805..41f0ff8 100644 --- a/linux-user/syscall_defs.h +++ b/linux-user/syscall_defs.h @@ -2336,3 +2336,9 @@ struct target_rlimit64 { uint64_t rlim_cur; uint64_t rlim_max; }; + +struct target_ucred { + uint32_t pid; + uint32_t uid; + uint32_t gid; +}; -- 1.7.5.4