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authorAurélien Charbon <aurelien.charbon@ext.bull.net>2008-01-18 15:50:56 +0100
committerJ. Bruce Fields <bfields@citi.umich.edu>2008-04-23 16:13:36 -0400
commitf15364bd4cf8799a7677b6daeed7b67d9139d974 (patch)
treebef48016533d184ea171d4b64336a5ad65ebc18e /fs/nfsd
parentd751a7cd0695554498f25d3026ca6710dbb3698f (diff)
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IPv6 support for NFS server export caches
This adds IPv6 support to the interfaces that are used to express nfsd exports. All addressed are stored internally as IPv6; backwards compatibility is maintained using mapped addresses. Thanks to Bruce Fields, Brian Haley, Neil Brown and Hideaki Joshifuji for comments Signed-off-by: Aurelien Charbon <aurelien.charbon@bull.net> Cc: Neil Brown <neilb@suse.de> Cc: Brian Haley <brian.haley@hp.com> Cc: YOSHIFUJI Hideaki / 吉藤英明 <yoshfuji@linux-ipv6.org> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Diffstat (limited to 'fs/nfsd')
-rw-r--r--fs/nfsd/export.c9
-rw-r--r--fs/nfsd/nfsctl.c15
2 files changed, 19 insertions, 5 deletions
diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c
index 8a6f7c924c7..33bfcf09db4 100644
--- a/fs/nfsd/export.c
+++ b/fs/nfsd/export.c
@@ -35,6 +35,7 @@
#include <linux/lockd/bind.h>
#include <linux/sunrpc/msg_prot.h>
#include <linux/sunrpc/gss_api.h>
+#include <net/ipv6.h>
#define NFSDDBG_FACILITY NFSDDBG_EXPORT
@@ -1548,6 +1549,7 @@ exp_addclient(struct nfsctl_client *ncp)
{
struct auth_domain *dom;
int i, err;
+ struct in6_addr addr6;
/* First, consistency check. */
err = -EINVAL;
@@ -1566,9 +1568,10 @@ exp_addclient(struct nfsctl_client *ncp)
goto out_unlock;
/* Insert client into hashtable. */
- for (i = 0; i < ncp->cl_naddr; i++)
- auth_unix_add_addr(ncp->cl_addrlist[i], dom);
-
+ for (i = 0; i < ncp->cl_naddr; i++) {
+ ipv6_addr_set_v4mapped(ncp->cl_addrlist[i].s_addr, &addr6);
+ auth_unix_add_addr(&addr6, dom);
+ }
auth_unix_forget_old(dom);
auth_domain_put(dom);
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index 8516137cdbb..9f038a4a148 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -37,6 +37,7 @@
#include <linux/nfsd/syscall.h>
#include <asm/uaccess.h>
+#include <net/ipv6.h>
/*
* We have a single directory with 9 nodes in it.
@@ -222,6 +223,7 @@ static ssize_t write_getfs(struct file *file, char *buf, size_t size)
struct auth_domain *clp;
int err = 0;
struct knfsd_fh *res;
+ struct in6_addr in6;
if (size < sizeof(*data))
return -EINVAL;
@@ -236,7 +238,11 @@ static ssize_t write_getfs(struct file *file, char *buf, size_t size)
res = (struct knfsd_fh*)buf;
exp_readlock();
- if (!(clp = auth_unix_lookup(sin->sin_addr)))
+
+ ipv6_addr_set_v4mapped(sin->sin_addr.s_addr, &in6);
+
+ clp = auth_unix_lookup(&in6);
+ if (!clp)
err = -EPERM;
else {
err = exp_rootfh(clp, data->gd_path, res, data->gd_maxlen);
@@ -257,6 +263,7 @@ static ssize_t write_getfd(struct file *file, char *buf, size_t size)
int err = 0;
struct knfsd_fh fh;
char *res;
+ struct in6_addr in6;
if (size < sizeof(*data))
return -EINVAL;
@@ -271,7 +278,11 @@ static ssize_t write_getfd(struct file *file, char *buf, size_t size)
res = buf;
sin = (struct sockaddr_in *)&data->gd_addr;
exp_readlock();
- if (!(clp = auth_unix_lookup(sin->sin_addr)))
+
+ ipv6_addr_set_v4mapped(sin->sin_addr.s_addr, &in6);
+
+ clp = auth_unix_lookup(&in6);
+ if (!clp)
err = -EPERM;
else {
err = exp_rootfh(clp, data->gd_path, &fh, NFS_FHSIZE);