Return-Path: Received: from mx1.redhat.com ([209.132.183.28]:39608 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751560AbdF3NVk (ORCPT ); Fri, 30 Jun 2017 09:21:40 -0400 From: Stefan Hajnoczi To: linux-nfs@vger.kernel.org Cc: Jeff Layton , Abbas Naderi , Steve Dickson , Stefan Hajnoczi Subject: [PATCH nfs-utils v2 05/12] getport: recognize "vsock" netid Date: Fri, 30 Jun 2017 14:21:13 +0100 Message-Id: <20170630132120.31578-6-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: Neither libtirpc nor getprotobyname(3) know about AF_VSOCK. For similar reasons as for "rdma"/"rmda6", translate "vsock" manually in getport.c. It is now possible to mount a file system from the host (hypervisor) over AF_VSOCK like this: (guest)$ mount.nfs 2:/export /mnt -v -o clientaddr=3,proto=vsock The VM's cid address is 3 and the hypervisor is 2. Signed-off-by: Stefan Hajnoczi --- support/nfs/getport.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) diff --git a/support/nfs/getport.c b/support/nfs/getport.c index 081594c..0b857af 100644 --- a/support/nfs/getport.c +++ b/support/nfs/getport.c @@ -217,8 +217,7 @@ nfs_get_proto(const char *netid, sa_family_t *family, unsigned long *protocol) struct protoent *proto; /* - * IANA does not define a protocol number for rdma netids, - * since "rdma" is not an IP protocol. + * IANA does not define protocol numbers for non-IP netids. */ if (strcmp(netid, "rdma") == 0) { *family = AF_INET; @@ -230,6 +229,11 @@ nfs_get_proto(const char *netid, sa_family_t *family, unsigned long *protocol) *protocol = NFSPROTO_RDMA; return 1; } + if (strcmp(netid, "vsock") == 0) { + *family = AF_VSOCK; + *protocol = 0; + return 1; + } nconf = getnetconfigent(netid); if (nconf == NULL) @@ -258,14 +262,18 @@ nfs_get_proto(const char *netid, sa_family_t *family, unsigned long *protocol) struct protoent *proto; /* - * IANA does not define a protocol number for rdma netids, - * since "rdma" is not an IP protocol. + * IANA does not define protocol numbers for non-IP netids. */ if (strcmp(netid, "rdma") == 0) { *family = AF_INET; *protocol = NFSPROTO_RDMA; return 1; } + if (strcmp(netid, "vsock") == 0) { + *family = AF_VSOCK; + *protocol = 0; + return 1; + } proto = getprotobyname(netid); if (proto == NULL) -- 2.9.4