[PATCH] knfsd: SUNRPC: Add a function to format the address in an svc_rqst for printing

There are loads of places where the RPC server assumes that the rq_addr fields
contains an IPv4 address.  Top among these are error and debugging messages
that display the server's IP address.

Let's refactor the address printing into a separate function that's smart
enough to figure out the difference between IPv4 and IPv6 addresses.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 4 insertions, 3 deletions

diff --git a/fs/nfsd/nfsfh.c b/fs/nfsd/nfsfh.c
index c59d6fbb7a6b..a0b4282cb284 100644
--- a/fs/nfsd/nfsfh.c
+++ b/fs/nfsd/nfsfh.c
@@ -20,6 +20,7 @@
 #include <linux/mount.h>
 #include <asm/pgtable.h>
 
+#include <linux/sunrpc/clnt.h>
 #include <linux/sunrpc/svc.h>
 #include <linux/nfsd/nfsd.h>
 
@@ -180,10 +181,10 @@ fh_verify(struct svc_rqst *rqstp, struct svc_fh *fhp, int type, int access)
                 /* Check if the request originated from a secure port. */
                 error = nfserr_perm;
                 if (!rqstp->rq_secure && EX_SECURE(exp)) {
+                        char buf[RPC_MAX_ADDRBUFLEN];
                         printk(KERN_WARNING
-                               "nfsd: request from insecure port (%u.%u.%u.%u:%d)!\n",
-                               NIPQUAD(rqstp->rq_addr.sin_addr.s_addr),
-                               ntohs(rqstp->rq_addr.sin_port));
+                               "nfsd: request from insecure port %s!\n",
+                               svc_print_addr(rqstp, buf, sizeof(buf)));
                         goto out;
                 }