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NFS: Refactor NFSv4 text-based mount option validation 

Clean up: Refactor the part of nfs4_validate_mount_options() that
handles text-based options, so we can call it from the NFSv2/v3
option validation function.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Chuck Lever 2009-09-08 19:49:57 -04:00 committed by Trond Myklebust
parent 4cfd74fc99
commit 7630c852e1
1 changed files with 35 additions and 28 deletions
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63
fs/nfs/super.c
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@ -272,6 +272,8 @@ static const struct super_operations nfs_sops = {
}; };
#ifdef CONFIG_NFS_V4 #ifdef CONFIG_NFS_V4
static int nfs4_validate_text_mount_data(void *options,
struct nfs_parsed_mount_data *args, const char *dev_name);
static int nfs4_get_sb(struct file_system_type *fs_type, static int nfs4_get_sb(struct file_system_type *fs_type,
int flags, const char *dev_name, void *raw_data, struct vfsmount *mnt); int flags, const char *dev_name, void *raw_data, struct vfsmount *mnt);
static int nfs4_remote_get_sb(struct file_system_type *fs_type, static int nfs4_remote_get_sb(struct file_system_type *fs_type,
@ -2262,6 +2264,37 @@ static void nfs4_validate_mount_flags(struct nfs_parsed_mount_data *args)
args->flags &= ~(NFS_MOUNT_NONLM|NFS_MOUNT_NOACL|NFS_MOUNT_VER3); args->flags &= ~(NFS_MOUNT_NONLM|NFS_MOUNT_NOACL|NFS_MOUNT_VER3);
} }
static int nfs4_validate_text_mount_data(void *options,
struct nfs_parsed_mount_data *args,
const char *dev_name)
{
struct sockaddr *sap = (struct sockaddr *)&args->nfs_server.address;
nfs_set_default_port(sap, args->nfs_server.port, NFS_PORT);
nfs_validate_transport_protocol(args);
nfs4_validate_mount_flags(args);
if (args->auth_flavor_len > 1) {
dfprintk(MOUNT,
"NFS4: Too many RPC auth flavours specified\n");
return -EINVAL;
}
if (args->client_address == NULL) {
dfprintk(MOUNT,
"NFS4: mount program didn't pass callback address\n");
return -EINVAL;
}
return nfs_parse_devname(dev_name,
&args->nfs_server.hostname,
NFS4_MAXNAMLEN,
&args->nfs_server.export_path,
NFS4_MAXPATHLEN);
}
/* /*
* Validate NFSv4 mount options * Validate NFSv4 mount options
*/ */
@ -2342,36 +2375,14 @@ static int nfs4_validate_mount_data(void *options,
nfs_validate_transport_protocol(args); nfs_validate_transport_protocol(args);
break; break;
default: { default:
int status;
if (nfs_parse_mount_options((char *)options, args) == 0) if (nfs_parse_mount_options((char *)options, args) == 0)
return -EINVAL; return -EINVAL;
if (!nfs_verify_server_address(sap)) if (!nfs_verify_server_address(sap))
return -EINVAL; return -EINVAL;
nfs_set_default_port(sap, args->nfs_server.port, NFS_PORT);
nfs_validate_transport_protocol(args); return nfs4_validate_text_mount_data(options, args, dev_name);
nfs4_validate_mount_flags(args);
if (args->auth_flavor_len > 1)
goto out_inval_auth;
if (args->client_address == NULL)
goto out_no_client_address;
status = nfs_parse_devname(dev_name,
&args->nfs_server.hostname,
NFS4_MAXNAMLEN,
&args->nfs_server.export_path,
NFS4_MAXPATHLEN);
if (status < 0)
return status;
break;
}
} }
return 0; return 0;
@ -2388,10 +2399,6 @@ out_inval_auth:
out_no_address: out_no_address:
dfprintk(MOUNT, "NFS4: mount program didn't pass remote address\n"); dfprintk(MOUNT, "NFS4: mount program didn't pass remote address\n");
return -EINVAL; return -EINVAL;
out_no_client_address:
dfprintk(MOUNT, "NFS4: mount program didn't pass callback address\n");
return -EINVAL;
} }
/* /*