From mboxrd@z Thu Jan 1 00:00:00 1970 From: ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org (Eric W. Biederman) Subject: [PATCH 8/8] net: Implement socketat. Date: Thu, 23 Sep 2010 01:51:59 -0700 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: Sukadev Bhattiprolu , Pavel Emelyanov , Pavel Emelyanov , Ulrich Drepper , netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Jonathan Corbet , Jan Engelhardt , linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, netfilter-devel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Michael Kerrisk , Linux Containers , Ben Greear , Linus Torvalds , David Miller , Al Viro To: Return-path: In-Reply-To: (Eric W. Biederman's message of "Thu, 23 Sep 2010 01:45:04 -0700") List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: containers-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: containers-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org List-Id: linux-fsdevel.vger.kernel.org Add a system call for creating sockets in a specified network namespace. Signed-off-by: Eric W. Biederman --- net/socket.c | 26 ++++++++++++++++++++++++-- 1 files changed, 24 insertions(+), 2 deletions(-) diff --git a/net/socket.c b/net/socket.c index 2270b94..1116f3c 100644 --- a/net/socket.c +++ b/net/socket.c @@ -1269,7 +1269,7 @@ int sock_create_kern(int family, int type, int protocol, struct socket **res) } EXPORT_SYMBOL(sock_create_kern); -SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol) +static int do_socket(struct net *net, int family, int type, int protocol) { int retval; struct socket *sock; @@ -1289,7 +1289,7 @@ SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol) if (SOCK_NONBLOCK != O_NONBLOCK && (flags & SOCK_NONBLOCK)) flags = (flags & ~SOCK_NONBLOCK) | O_NONBLOCK; - retval = sock_create(family, type, protocol, &sock); + retval = __sock_create(net, family, type, protocol, &sock, 0); if (retval < 0) goto out; @@ -1306,6 +1306,28 @@ out_release: return retval; } +SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol) +{ + return do_socket(current->nsproxy->net_ns, family, type, protocol); +} + +SYSCALL_DEFINE4(socketat, int, fd, int, family, int, type, int, protocol) +{ + struct net *net; + int retval; + + if (fd == -1) { + net = get_net(current->nsproxy->net_ns); + } else { + net = get_net_ns_by_fd(fd); + if (IS_ERR(net)) + return PTR_ERR(net); + } + retval = do_socket(net, family, type, protocol); + put_net(net); + return retval; +} + /* * Create a pair of connected sockets. */ -- 1.6.5.2.143.g8cc62