From: Chuck Lever Subject: [PATCH 07/25] SUNRPC: create API for getting remote peer address Date: Wed, 09 Aug 2006 10:59:06 -0400 Message-ID: <20060809145906.3914.27977.stgit@picasso.dsl.sfldmi.ameritech.net> References: <20060809144716.3914.62804.stgit@picasso.dsl.sfldmi.ameritech.net> Reply-To: Chuck Lever Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Cc: nfs@lists.sourceforge.net Return-path: Received: from sc8-sf-mx2-b.sourceforge.net ([10.3.1.92] helo=mail.sourceforge.net) by sc8-sf-list2-new.sourceforge.net with esmtp (Exim 4.43) id 1GApWe-0008Lb-2Z for nfs@lists.sourceforge.net; Wed, 09 Aug 2006 07:59:16 -0700 Received: from flpvm23.prodigy.net ([207.115.20.53]) by mail.sourceforge.net with esmtp (Exim 4.44) id 1GApWb-0003Xk-GS for nfs@lists.sourceforge.net; Wed, 09 Aug 2006 07:59:13 -0700 To: trond.myklebust@fys.uio.no In-Reply-To: <20060809144716.3914.62804.stgit@picasso.dsl.sfldmi.ameritech.net> List-Id: "Discussion of NFS under Linux development, interoperability, and testing." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: nfs-bounces@lists.sourceforge.net Errors-To: nfs-bounces@lists.sourceforge.net Provide an API for retrieving the remote peer address without allowing direct access to the rpc_xprt struct. Test-plan: Compile kernel with CONFIG_NFS enabled. Signed-off-by: Chuck Lever --- include/linux/sunrpc/clnt.h | 1 + net/sunrpc/clnt.c | 21 +++++++++++++++++++++ 2 files changed, 22 insertions(+), 0 deletions(-) diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h index 2e68ac0..65196b0 100644 --- a/include/linux/sunrpc/clnt.h +++ b/include/linux/sunrpc/clnt.h @@ -123,6 +123,7 @@ void rpc_setbufsize(struct rpc_clnt *, size_t rpc_max_payload(struct rpc_clnt *); void rpc_force_rebind(struct rpc_clnt *); int rpc_ping(struct rpc_clnt *clnt, int flags); +size_t rpc_peeraddr(struct rpc_clnt *, struct sockaddr *, size_t); /* * Helper function for NFSroot support diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c index bff350e..da377eb 100644 --- a/net/sunrpc/clnt.c +++ b/net/sunrpc/clnt.c @@ -536,6 +536,27 @@ rpc_call_setup(struct rpc_task *task, st task->tk_action = rpc_exit_task; } +/** + * rpc_peeraddr - extract remote peer address from clnt's xprt + * @clnt: RPC client structure + * @buf: target buffer + * @size: length of target buffer + * + * Returns the number of bytes that are actually in the stored address. + */ +size_t rpc_peeraddr(struct rpc_clnt *clnt, struct sockaddr *buf, size_t bufsize) +{ + size_t bytes; + struct rpc_xprt *xprt = clnt->cl_xprt; + + bytes = sizeof(xprt->addr); + if (bytes > bufsize) + bytes = bufsize; + memcpy(buf, &clnt->cl_xprt->addr, bytes); + return sizeof(xprt->addr); +} +EXPORT_SYMBOL(rpc_peeraddr); + void rpc_setbufsize(struct rpc_clnt *clnt, unsigned int sndsize, unsigned int rcvsize) { ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ NFS maillist - NFS@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nfs