Return-Path: Received: from mx1.redhat.com ([209.132.183.28]:35300 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751659AbdF3NWB (ORCPT ); Fri, 30 Jun 2017 09:22:01 -0400 From: Stefan Hajnoczi To: linux-nfs@vger.kernel.org Cc: Jeff Layton , Abbas Naderi , Steve Dickson , Stefan Hajnoczi Subject: [PATCH nfs-utils v2 10/12] exportfs: add support for "vsock:" exports(5) syntax Date: Fri, 30 Jun 2017 14:21:18 +0100 Message-Id: <20170630132120.31578-11-stefanha@redhat.com> In-Reply-To: <20170630132120.31578-1-stefanha@redhat.com> References: <20170630132120.31578-1-stefanha@redhat.com> Sender: linux-nfs-owner@vger.kernel.org List-ID: Allow exports to be restricted to AF_VSOCK clients: # exportfs vsock:3:/export and: # cat /etc/exports /export vsock:*(rw,no_root_squash,insecure,subtree_check) Signed-off-by: Stefan Hajnoczi --- utils/exportfs/exportfs.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/utils/exportfs/exportfs.c b/utils/exportfs/exportfs.c index 3ded733..6bf67f1 100644 --- a/utils/exportfs/exportfs.c +++ b/utils/exportfs/exportfs.c @@ -299,6 +299,20 @@ static int exportfs_generic(char *arg, char *options, int verbose) return 0; } +static int exportfs_vsock(char *arg, char *options, int verbose) +{ + char *path; + + if ((path = strchr(arg + strlen("vsock:"), ':')) != NULL) + *path++ = '\0'; + + if (!path || *path != '/') + return 1; + + exportfs_parsed(arg, path, options, verbose); + return 0; +} + static int exportfs_ipv6(char *arg, char *options, int verbose) { char *path, *c; @@ -332,6 +346,8 @@ exportfs(char *arg, char *options, int verbose) if (*arg == '[') failed = exportfs_ipv6(arg, options, verbose); + else if (strncmp(arg, "vsock:", strlen("vsock:")) == 0) + failed = exportfs_vsock(arg, options, verbose); else failed = exportfs_generic(arg, options, verbose); if (failed) @@ -412,6 +428,20 @@ static int unexportfs_generic(char *arg, int verbose) return 0; } +static int unexportfs_vsock(char *arg, int verbose) +{ + char *path; + + if ((path = strchr(arg + strlen("vsock:"), ':')) != NULL) + *path++ = '\0'; + + if (!path || *path != '/') + return 1; + + unexportfs_parsed(arg, path, verbose); + return 0; +} + static int unexportfs_ipv6(char *arg, int verbose) { char *path, *c; @@ -445,6 +475,8 @@ unexportfs(char *arg, int verbose) if (*arg == '[') failed = unexportfs_ipv6(arg, verbose); + else if (strncmp(arg, "vsock:", strlen("vsock:")) == 0) + failed = unexportfs_vsock(arg, verbose); else failed = unexportfs_generic(arg, verbose); if (failed) -- 2.9.4