mirror of https://gitee.com/openkylin/linux.git
[PATCH] NFS: Kill annoying mount version mismatch printks
Ensure that we fix up the missing fields in the nfs_mount_data with sane defaults for older versions of mount, and return errors in the cases where we cannot. Convert a bunch of annoying warnings into dprintks() Return -EPROTONOSUPPORT rather than EIO if mount() tries to set NFSv3 without it actually being compiled in. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust
parent
5ee0ed7d3a
commit
9085bbcb76
179
fs/nfs/inode.c
179
fs/nfs/inode.c
|
|
@ -366,13 +366,15 @@ nfs_create_client(struct nfs_server *server, const struct nfs_mount_data *data)
|
|||
xprt = xprt_create_proto(tcp ? IPPROTO_TCP : IPPROTO_UDP,
|
||||
&server->addr, &timeparms);
|
||||
if (IS_ERR(xprt)) {
|
||||
printk(KERN_WARNING "NFS: cannot create RPC transport.\n");
|
||||
dprintk("%s: cannot create RPC transport. Error = %ld\n",
|
||||
__FUNCTION__, PTR_ERR(xprt));
|
||||
return (struct rpc_clnt *)xprt;
|
||||
}
|
||||
clnt = rpc_create_client(xprt, server->hostname, &nfs_program,
|
||||
server->rpc_ops->version, data->pseudoflavor);
|
||||
if (IS_ERR(clnt)) {
|
||||
printk(KERN_WARNING "NFS: cannot create RPC client.\n");
|
||||
dprintk("%s: cannot create RPC client. Error = %ld\n",
|
||||
__FUNCTION__, PTR_ERR(xprt));
|
||||
goto out_fail;
|
||||
}
|
||||
|
||||
|
|
@ -426,21 +428,16 @@ nfs_fill_super(struct super_block *sb, struct nfs_mount_data *data, int silent)
|
|||
|
||||
/* Check NFS protocol revision and initialize RPC op vector
|
||||
* and file handle pool. */
|
||||
if (server->flags & NFS_MOUNT_VER3) {
|
||||
#ifdef CONFIG_NFS_V3
|
||||
if (server->flags & NFS_MOUNT_VER3) {
|
||||
server->rpc_ops = &nfs_v3_clientops;
|
||||
server->caps |= NFS_CAP_READDIRPLUS;
|
||||
if (data->version < 4) {
|
||||
printk(KERN_NOTICE "NFS: NFSv3 not supported by mount program.\n");
|
||||
return -EIO;
|
||||
}
|
||||
#else
|
||||
printk(KERN_NOTICE "NFS: NFSv3 not supported.\n");
|
||||
return -EIO;
|
||||
#endif
|
||||
} else {
|
||||
server->rpc_ops = &nfs_v2_clientops;
|
||||
}
|
||||
#else
|
||||
server->rpc_ops = &nfs_v2_clientops;
|
||||
#endif
|
||||
|
||||
/* Fill in pseudoflavor for mount version < 5 */
|
||||
if (!(data->flags & NFS_MOUNT_SECFLAVOUR))
|
||||
|
|
@ -1384,75 +1381,95 @@ static struct super_block *nfs_get_sb(struct file_system_type *fs_type,
|
|||
int flags, const char *dev_name, void *raw_data)
|
||||
{
|
||||
int error;
|
||||
struct nfs_server *server;
|
||||
struct nfs_server *server = NULL;
|
||||
struct super_block *s;
|
||||
struct nfs_fh *root;
|
||||
struct nfs_mount_data *data = raw_data;
|
||||
|
||||
if (!data) {
|
||||
printk("nfs_read_super: missing data argument\n");
|
||||
return ERR_PTR(-EINVAL);
|
||||
s = ERR_PTR(-EINVAL);
|
||||
if (data == NULL) {
|
||||
dprintk("%s: missing data argument\n", __FUNCTION__);
|
||||
goto out_err;
|
||||
}
|
||||
if (data->version <= 0 || data->version > NFS_MOUNT_VERSION) {
|
||||
dprintk("%s: bad mount version\n", __FUNCTION__);
|
||||
goto out_err;
|
||||
}
|
||||
switch (data->version) {
|
||||
case 1:
|
||||
data->namlen = 0;
|
||||
case 2:
|
||||
data->bsize = 0;
|
||||
case 3:
|
||||
if (data->flags & NFS_MOUNT_VER3) {
|
||||
dprintk("%s: mount structure version %d does not support NFSv3\n",
|
||||
__FUNCTION__,
|
||||
data->version);
|
||||
goto out_err;
|
||||
}
|
||||
data->root.size = NFS2_FHSIZE;
|
||||
memcpy(data->root.data, data->old_root.data, NFS2_FHSIZE);
|
||||
case 4:
|
||||
if (data->flags & NFS_MOUNT_SECFLAVOUR) {
|
||||
dprintk("%s: mount structure version %d does not support strong security\n",
|
||||
__FUNCTION__,
|
||||
data->version);
|
||||
goto out_err;
|
||||
}
|
||||
case 5:
|
||||
memset(data->context, 0, sizeof(data->context));
|
||||
}
|
||||
#ifndef CONFIG_NFS_V3
|
||||
/* If NFSv3 is not compiled in, return -EPROTONOSUPPORT */
|
||||
s = ERR_PTR(-EPROTONOSUPPORT);
|
||||
if (data->flags & NFS_MOUNT_VER3) {
|
||||
dprintk("%s: NFSv3 not compiled into kernel\n", __FUNCTION__);
|
||||
goto out_err;
|
||||
}
|
||||
#endif /* CONFIG_NFS_V3 */
|
||||
|
||||
s = ERR_PTR(-ENOMEM);
|
||||
server = kmalloc(sizeof(struct nfs_server), GFP_KERNEL);
|
||||
if (!server)
|
||||
return ERR_PTR(-ENOMEM);
|
||||
goto out_err;
|
||||
memset(server, 0, sizeof(struct nfs_server));
|
||||
/* Zero out the NFS state stuff */
|
||||
init_nfsv4_state(server);
|
||||
|
||||
if (data->version != NFS_MOUNT_VERSION) {
|
||||
printk("nfs warning: mount version %s than kernel\n",
|
||||
data->version < NFS_MOUNT_VERSION ? "older" : "newer");
|
||||
if (data->version < 2)
|
||||
data->namlen = 0;
|
||||
if (data->version < 3)
|
||||
data->bsize = 0;
|
||||
if (data->version < 4) {
|
||||
data->flags &= ~NFS_MOUNT_VER3;
|
||||
data->root.size = NFS2_FHSIZE;
|
||||
memcpy(data->root.data, data->old_root.data, NFS2_FHSIZE);
|
||||
}
|
||||
if (data->version < 5)
|
||||
data->flags &= ~NFS_MOUNT_SECFLAVOUR;
|
||||
}
|
||||
|
||||
root = &server->fh;
|
||||
if (data->flags & NFS_MOUNT_VER3)
|
||||
root->size = data->root.size;
|
||||
else
|
||||
root->size = NFS2_FHSIZE;
|
||||
s = ERR_PTR(-EINVAL);
|
||||
if (root->size > sizeof(root->data)) {
|
||||
printk("nfs_get_sb: invalid root filehandle\n");
|
||||
kfree(server);
|
||||
return ERR_PTR(-EINVAL);
|
||||
dprintk("%s: invalid root filehandle\n", __FUNCTION__);
|
||||
goto out_err;
|
||||
}
|
||||
memcpy(root->data, data->root.data, root->size);
|
||||
|
||||
/* We now require that the mount process passes the remote address */
|
||||
memcpy(&server->addr, &data->addr, sizeof(server->addr));
|
||||
if (server->addr.sin_addr.s_addr == INADDR_ANY) {
|
||||
printk("NFS: mount program didn't pass remote address!\n");
|
||||
kfree(server);
|
||||
return ERR_PTR(-EINVAL);
|
||||
dprintk("%s: mount program didn't pass remote address!\n",
|
||||
__FUNCTION__);
|
||||
goto out_err;
|
||||
}
|
||||
|
||||
/* Fire up rpciod if not yet running */
|
||||
s = ERR_PTR(rpciod_up());
|
||||
if (IS_ERR(s)) {
|
||||
dprintk("%s: couldn't start rpciod! Error = %ld\n",
|
||||
__FUNCTION__, PTR_ERR(s));
|
||||
goto out_err;
|
||||
}
|
||||
|
||||
s = sget(fs_type, nfs_compare_super, nfs_set_super, server);
|
||||
|
||||
if (IS_ERR(s) || s->s_root) {
|
||||
kfree(server);
|
||||
return s;
|
||||
}
|
||||
if (IS_ERR(s) || s->s_root)
|
||||
goto out_rpciod_down;
|
||||
|
||||
s->s_flags = flags;
|
||||
|
||||
/* Fire up rpciod if not yet running */
|
||||
if (rpciod_up() != 0) {
|
||||
printk(KERN_WARNING "NFS: couldn't start rpciod!\n");
|
||||
kfree(server);
|
||||
return ERR_PTR(-EIO);
|
||||
}
|
||||
|
||||
error = nfs_fill_super(s, data, flags & MS_VERBOSE ? 1 : 0);
|
||||
if (error) {
|
||||
up_write(&s->s_umount);
|
||||
|
|
@ -1461,6 +1478,11 @@ static struct super_block *nfs_get_sb(struct file_system_type *fs_type,
|
|||
}
|
||||
s->s_flags |= MS_ACTIVE;
|
||||
return s;
|
||||
out_rpciod_down:
|
||||
rpciod_down();
|
||||
out_err:
|
||||
kfree(server);
|
||||
return s;
|
||||
}
|
||||
|
||||
static void nfs_kill_super(struct super_block *s)
|
||||
|
|
@ -1593,15 +1615,19 @@ static int nfs4_fill_super(struct super_block *sb, struct nfs4_mount_data *data,
|
|||
|
||||
clp = nfs4_get_client(&server->addr.sin_addr);
|
||||
if (!clp) {
|
||||
printk(KERN_WARNING "NFS: failed to create NFS4 client.\n");
|
||||
dprintk("%s: failed to create NFS4 client.\n", __FUNCTION__);
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
/* Now create transport and client */
|
||||
authflavour = RPC_AUTH_UNIX;
|
||||
if (data->auth_flavourlen != 0) {
|
||||
if (data->auth_flavourlen > 1)
|
||||
printk(KERN_INFO "NFS: cannot yet deal with multiple auth flavours.\n");
|
||||
if (data->auth_flavourlen != 1) {
|
||||
dprintk("%s: Invalid number of RPC auth flavours %d.\n",
|
||||
__FUNCTION__, data->auth_flavourlen);
|
||||
err = -EINVAL;
|
||||
goto out_fail;
|
||||
}
|
||||
if (copy_from_user(&authflavour, data->auth_flavours, sizeof(authflavour))) {
|
||||
err = -EFAULT;
|
||||
goto out_fail;
|
||||
|
|
@ -1613,16 +1639,18 @@ static int nfs4_fill_super(struct super_block *sb, struct nfs4_mount_data *data,
|
|||
xprt = xprt_create_proto(proto, &server->addr, &timeparms);
|
||||
if (IS_ERR(xprt)) {
|
||||
up_write(&clp->cl_sem);
|
||||
printk(KERN_WARNING "NFS: cannot create RPC transport.\n");
|
||||
err = PTR_ERR(xprt);
|
||||
dprintk("%s: cannot create RPC transport. Error = %d\n",
|
||||
__FUNCTION__, err);
|
||||
goto out_fail;
|
||||
}
|
||||
clnt = rpc_create_client(xprt, server->hostname, &nfs_program,
|
||||
server->rpc_ops->version, authflavour);
|
||||
if (IS_ERR(clnt)) {
|
||||
up_write(&clp->cl_sem);
|
||||
printk(KERN_WARNING "NFS: cannot create RPC client.\n");
|
||||
err = PTR_ERR(clnt);
|
||||
dprintk("%s: cannot create RPC client. Error = %d\n",
|
||||
__FUNCTION__, err);
|
||||
goto out_fail;
|
||||
}
|
||||
clnt->cl_intr = 1;
|
||||
|
|
@ -1654,20 +1682,22 @@ static int nfs4_fill_super(struct super_block *sb, struct nfs4_mount_data *data,
|
|||
clp = NULL;
|
||||
|
||||
if (IS_ERR(clnt)) {
|
||||
printk(KERN_WARNING "NFS: cannot create RPC client.\n");
|
||||
return PTR_ERR(clnt);
|
||||
err = PTR_ERR(clnt);
|
||||
dprintk("%s: cannot create RPC client. Error = %d\n",
|
||||
__FUNCTION__, err);
|
||||
return err;
|
||||
}
|
||||
|
||||
server->client = clnt;
|
||||
|
||||
if (server->nfs4_state->cl_idmap == NULL) {
|
||||
printk(KERN_WARNING "NFS: failed to create idmapper.\n");
|
||||
dprintk("%s: failed to create idmapper.\n", __FUNCTION__);
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
if (clnt->cl_auth->au_flavor != authflavour) {
|
||||
if (rpcauth_create(authflavour, clnt) == NULL) {
|
||||
printk(KERN_WARNING "NFS: couldn't create credcache!\n");
|
||||
dprintk("%s: couldn't create credcache!\n", __FUNCTION__);
|
||||
return -ENOMEM;
|
||||
}
|
||||
}
|
||||
|
|
@ -1728,8 +1758,12 @@ static struct super_block *nfs4_get_sb(struct file_system_type *fs_type,
|
|||
struct nfs4_mount_data *data = raw_data;
|
||||
void *p;
|
||||
|
||||
if (!data) {
|
||||
printk("nfs_read_super: missing data argument\n");
|
||||
if (data == NULL) {
|
||||
dprintk("%s: missing data argument\n", __FUNCTION__);
|
||||
return ERR_PTR(-EINVAL);
|
||||
}
|
||||
if (data->version <= 0 || data->version > NFS4_MOUNT_VERSION) {
|
||||
dprintk("%s: bad mount version\n", __FUNCTION__);
|
||||
return ERR_PTR(-EINVAL);
|
||||
}
|
||||
|
||||
|
|
@ -1740,11 +1774,6 @@ static struct super_block *nfs4_get_sb(struct file_system_type *fs_type,
|
|||
/* Zero out the NFS state stuff */
|
||||
init_nfsv4_state(server);
|
||||
|
||||
if (data->version != NFS4_MOUNT_VERSION) {
|
||||
printk("nfs warning: mount version %s than kernel\n",
|
||||
data->version < NFS4_MOUNT_VERSION ? "older" : "newer");
|
||||
}
|
||||
|
||||
p = nfs_copy_user_string(NULL, &data->hostname, 256);
|
||||
if (IS_ERR(p))
|
||||
goto out_err;
|
||||
|
|
@ -1771,11 +1800,20 @@ static struct super_block *nfs4_get_sb(struct file_system_type *fs_type,
|
|||
}
|
||||
if (server->addr.sin_family != AF_INET ||
|
||||
server->addr.sin_addr.s_addr == INADDR_ANY) {
|
||||
printk("NFS: mount program didn't pass remote IP address!\n");
|
||||
dprintk("%s: mount program didn't pass remote IP address!\n",
|
||||
__FUNCTION__);
|
||||
s = ERR_PTR(-EINVAL);
|
||||
goto out_free;
|
||||
}
|
||||
|
||||
/* Fire up rpciod if not yet running */
|
||||
s = ERR_PTR(rpciod_up());
|
||||
if (IS_ERR(s)) {
|
||||
dprintk("%s: couldn't start rpciod! Error = %ld\n",
|
||||
__FUNCTION__, PTR_ERR(s));
|
||||
goto out_free;
|
||||
}
|
||||
|
||||
s = sget(fs_type, nfs4_compare_super, nfs_set_super, server);
|
||||
|
||||
if (IS_ERR(s) || s->s_root)
|
||||
|
|
@ -1783,13 +1821,6 @@ static struct super_block *nfs4_get_sb(struct file_system_type *fs_type,
|
|||
|
||||
s->s_flags = flags;
|
||||
|
||||
/* Fire up rpciod if not yet running */
|
||||
if (rpciod_up() != 0) {
|
||||
printk(KERN_WARNING "NFS: couldn't start rpciod!\n");
|
||||
s = ERR_PTR(-EIO);
|
||||
goto out_free;
|
||||
}
|
||||
|
||||
error = nfs4_fill_super(s, data, flags & MS_VERBOSE ? 1 : 0);
|
||||
if (error) {
|
||||
up_write(&s->s_umount);
|
||||
|
|
|
|||
Loading…
Reference in New Issue