Re: [PATCH] nfsd: use correct byte order on rdma port.

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On 2/22/2016 10:33 AM, Chuck Lever wrote:

On Feb 22, 2016, at 1:09 PM, Steve Dickson <SteveD@xxxxxxxxxx> wrote:

The returned port from getservbyname() is in
network order. Convert the port to host order
before writing it to the portlist file.

Reviewed-by: Chuck Lever <chuck.lever@xxxxxxxxxx>

/etc/services has:

nfsrdma    20049/tcp
nfsrdma    20049/udp
nfsrdma    20049/sctp

which RFC 5666 defines, but I couldn't find in the
IANA protocols registry.

They're there:

http://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.txt

nfsrdma 20049 tcp Network File System (NFS)
                                                              [RFC5666]
                                      over RDMA
nfsrdma 20049 udp Network File System (NFS)
                                                              [RFC5666]
                                      over RDMA
nfsrdma 20049 sctp Network File System (NFS)
                                                              [RFC5666]
                                      over RDMA



  struct servent *sv = getservbyname("nfsrdma", "tcp");

Is weird.


Reported-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
Signed-off-by: Steve Dickson <steved@xxxxxxxxxx>
---
utils/nfsd/nfssvc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/utils/nfsd/nfssvc.c b/utils/nfsd/nfssvc.c
index e8efd06..dcb430a 100644
--- a/utils/nfsd/nfssvc.c
+++ b/utils/nfsd/nfssvc.c
@@ -282,7 +282,7 @@ nfssvc_set_rdmaport(const char *port)
	int fd;

	if (sv)
-		nport = sv->s_port;
+		nport = ntohs(sv->s_port);
	else {
		char *ep;
		nport = strtol(port, &ep, 10);
--
2.5.0

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--
Chuck Lever




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