NFS: Add secinfo procedure
This patch adds the nfs4 operation secinfo as a valid nfs rpc operation. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>hifive-unleashed-5.1
Bryan Schumaker
Trond Myklebust
parent
7c5130588d
commit
5a5ea0d485
|
|
@ -4639,6 +4639,40 @@ int nfs4_proc_fs_locations(struct inode *dir, const struct qstr *name,
|
|||
return status;
|
||||
}
|
||||
|
||||
static int _nfs4_proc_secinfo(struct inode *dir, const struct qstr *name, struct nfs4_secinfo_flavors *flavors)
|
||||
{
|
||||
int status;
|
||||
struct nfs4_secinfo_arg args = {
|
||||
.dir_fh = NFS_FH(dir),
|
||||
.name = name,
|
||||
};
|
||||
struct nfs4_secinfo_res res = {
|
||||
.flavors = flavors,
|
||||
};
|
||||
struct rpc_message msg = {
|
||||
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_SECINFO],
|
||||
.rpc_argp = &args,
|
||||
.rpc_resp = &res,
|
||||
};
|
||||
|
||||
dprintk("NFS call secinfo %s\n", name->name);
|
||||
status = nfs4_call_sync(NFS_SERVER(dir)->client, NFS_SERVER(dir), &msg, &args.seq_args, &res.seq_res, 0);
|
||||
dprintk("NFS reply secinfo: %d\n", status);
|
||||
return status;
|
||||
}
|
||||
|
||||
int nfs4_proc_secinfo(struct inode *dir, const struct qstr *name, struct nfs4_secinfo_flavors *flavors)
|
||||
{
|
||||
struct nfs4_exception exception = { };
|
||||
int err;
|
||||
do {
|
||||
err = nfs4_handle_exception(NFS_SERVER(dir),
|
||||
_nfs4_proc_secinfo(dir, name, flavors),
|
||||
&exception);
|
||||
} while (exception.retry);
|
||||
return err;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_NFS_V4_1
|
||||
/*
|
||||
* Check the exchange flags returned by the server for invalid flags, having
|
||||
|
|
@ -5756,6 +5790,7 @@ const struct nfs_rpc_ops nfs_v4_clientops = {
|
|||
.close_context = nfs4_close_context,
|
||||
.open_context = nfs4_atomic_open,
|
||||
.init_client = nfs4_init_client,
|
||||
.secinfo = nfs4_proc_secinfo,
|
||||
};
|
||||
|
||||
static const struct xattr_handler nfs4_xattr_nfs4_acl_handler = {
|
||||
|
|
|
|||
135
fs/nfs/nfs4xdr.c
135
fs/nfs/nfs4xdr.c
|
|
@ -46,6 +46,7 @@
|
|||
#include <linux/kdev_t.h>
|
||||
#include <linux/sunrpc/clnt.h>
|
||||
#include <linux/sunrpc/msg_prot.h>
|
||||
#include <linux/sunrpc/gss_api.h>
|
||||
#include <linux/nfs.h>
|
||||
#include <linux/nfs4.h>
|
||||
#include <linux/nfs_fs.h>
|
||||
|
|
@ -253,6 +254,8 @@ static int nfs4_stat_to_errno(int);
|
|||
(encode_getattr_maxsz)
|
||||
#define decode_fs_locations_maxsz \
|
||||
(0)
|
||||
#define encode_secinfo_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz)
|
||||
#define decode_secinfo_maxsz (op_decode_hdr_maxsz + 4 + (NFS_MAX_SECFLAVORS * (16 + GSS_OID_MAX_LEN)))
|
||||
|
||||
#if defined(CONFIG_NFS_V4_1)
|
||||
#define NFS4_MAX_MACHINE_NAME_LEN (64)
|
||||
|
|
@ -676,6 +679,14 @@ static int nfs4_stat_to_errno(int);
|
|||
decode_putfh_maxsz + \
|
||||
decode_lookup_maxsz + \
|
||||
decode_fs_locations_maxsz)
|
||||
#define NFS4_enc_secinfo_sz (compound_encode_hdr_maxsz + \
|
||||
encode_sequence_maxsz + \
|
||||
encode_putfh_maxsz + \
|
||||
encode_secinfo_maxsz)
|
||||
#define NFS4_dec_secinfo_sz (compound_decode_hdr_maxsz + \
|
||||
decode_sequence_maxsz + \
|
||||
decode_putfh_maxsz + \
|
||||
decode_secinfo_maxsz)
|
||||
#if defined(CONFIG_NFS_V4_1)
|
||||
#define NFS4_enc_exchange_id_sz \
|
||||
(compound_encode_hdr_maxsz + \
|
||||
|
|
@ -1620,6 +1631,18 @@ static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *state
|
|||
hdr->replen += decode_delegreturn_maxsz;
|
||||
}
|
||||
|
||||
static void encode_secinfo(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
|
||||
{
|
||||
int len = name->len;
|
||||
__be32 *p;
|
||||
|
||||
p = reserve_space(xdr, 8 + len);
|
||||
*p++ = cpu_to_be32(OP_SECINFO);
|
||||
xdr_encode_opaque(p, name->name, len);
|
||||
hdr->nops++;
|
||||
hdr->replen += decode_secinfo_maxsz;
|
||||
}
|
||||
|
||||
#if defined(CONFIG_NFS_V4_1)
|
||||
/* NFSv4.1 operations */
|
||||
static void encode_exchange_id(struct xdr_stream *xdr,
|
||||
|
|
@ -2465,6 +2488,24 @@ static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req,
|
|||
encode_nops(&hdr);
|
||||
}
|
||||
|
||||
/*
|
||||
* Encode SECINFO request
|
||||
*/
|
||||
static void nfs4_xdr_enc_secinfo(struct rpc_rqst *req,
|
||||
struct xdr_stream *xdr,
|
||||
struct nfs4_secinfo_arg *args)
|
||||
{
|
||||
struct compound_hdr hdr = {
|
||||
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
|
||||
};
|
||||
|
||||
encode_compound_hdr(xdr, req, &hdr);
|
||||
encode_sequence(xdr, &args->seq_args, &hdr);
|
||||
encode_putfh(xdr, args->dir_fh, &hdr);
|
||||
encode_secinfo(xdr, args->name, &hdr);
|
||||
encode_nops(&hdr);
|
||||
}
|
||||
|
||||
#if defined(CONFIG_NFS_V4_1)
|
||||
/*
|
||||
* EXCHANGE_ID request
|
||||
|
|
@ -4680,6 +4721,73 @@ static int decode_delegreturn(struct xdr_stream *xdr)
|
|||
return decode_op_hdr(xdr, OP_DELEGRETURN);
|
||||
}
|
||||
|
||||
static int decode_secinfo_gss(struct xdr_stream *xdr, struct nfs4_secinfo_flavor *flavor)
|
||||
{
|
||||
__be32 *p;
|
||||
|
||||
p = xdr_inline_decode(xdr, 4);
|
||||
if (unlikely(!p))
|
||||
goto out_overflow;
|
||||
flavor->gss.sec_oid4.len = be32_to_cpup(p);
|
||||
if (flavor->gss.sec_oid4.len > GSS_OID_MAX_LEN)
|
||||
goto out_err;
|
||||
|
||||
p = xdr_inline_decode(xdr, flavor->gss.sec_oid4.len);
|
||||
if (unlikely(!p))
|
||||
goto out_overflow;
|
||||
memcpy(flavor->gss.sec_oid4.data, p, flavor->gss.sec_oid4.len);
|
||||
|
||||
p = xdr_inline_decode(xdr, 8);
|
||||
if (unlikely(!p))
|
||||
goto out_overflow;
|
||||
flavor->gss.qop4 = be32_to_cpup(p++);
|
||||
flavor->gss.service = be32_to_cpup(p);
|
||||
|
||||
return 0;
|
||||
|
||||
out_overflow:
|
||||
print_overflow_msg(__func__, xdr);
|
||||
return -EIO;
|
||||
out_err:
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
static int decode_secinfo(struct xdr_stream *xdr, struct nfs4_secinfo_res *res)
|
||||
{
|
||||
struct nfs4_secinfo_flavor *sec_flavor;
|
||||
int status;
|
||||
__be32 *p;
|
||||
int i;
|
||||
|
||||
status = decode_op_hdr(xdr, OP_SECINFO);
|
||||
p = xdr_inline_decode(xdr, 4);
|
||||
if (unlikely(!p))
|
||||
goto out_overflow;
|
||||
res->flavors->num_flavors = be32_to_cpup(p);
|
||||
|
||||
for (i = 0; i < res->flavors->num_flavors; i++) {
|
||||
sec_flavor = &res->flavors->flavors[i];
|
||||
if ((char *)&sec_flavor[1] - (char *)res > PAGE_SIZE)
|
||||
break;
|
||||
|
||||
p = xdr_inline_decode(xdr, 4);
|
||||
if (unlikely(!p))
|
||||
goto out_overflow;
|
||||
sec_flavor->flavor = be32_to_cpup(p);
|
||||
|
||||
if (sec_flavor->flavor == RPC_AUTH_GSS) {
|
||||
if (decode_secinfo_gss(xdr, sec_flavor))
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
||||
out_overflow:
|
||||
print_overflow_msg(__func__, xdr);
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
#if defined(CONFIG_NFS_V4_1)
|
||||
static int decode_exchange_id(struct xdr_stream *xdr,
|
||||
struct nfs41_exchange_id_res *res)
|
||||
|
|
@ -5919,6 +6027,32 @@ out:
|
|||
return status;
|
||||
}
|
||||
|
||||
/*
|
||||
* Decode SECINFO response
|
||||
*/
|
||||
static int nfs4_xdr_dec_secinfo(struct rpc_rqst *rqstp,
|
||||
struct xdr_stream *xdr,
|
||||
struct nfs4_secinfo_res *res)
|
||||
{
|
||||
struct compound_hdr hdr;
|
||||
int status;
|
||||
|
||||
status = decode_compound_hdr(xdr, &hdr);
|
||||
if (status)
|
||||
goto out;
|
||||
status = decode_sequence(xdr, &res->seq_res, rqstp);
|
||||
if (status)
|
||||
goto out;
|
||||
status = decode_putfh(xdr);
|
||||
if (status)
|
||||
goto out;
|
||||
status = decode_secinfo(xdr, res);
|
||||
if (status)
|
||||
goto out;
|
||||
out:
|
||||
return status;
|
||||
}
|
||||
|
||||
#if defined(CONFIG_NFS_V4_1)
|
||||
/*
|
||||
* Decode EXCHANGE_ID response
|
||||
|
|
@ -6258,6 +6392,7 @@ struct rpc_procinfo nfs4_procedures[] = {
|
|||
PROC(SETACL, enc_setacl, dec_setacl),
|
||||
PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations),
|
||||
PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner),
|
||||
PROC(SECINFO, enc_secinfo, dec_secinfo),
|
||||
#if defined(CONFIG_NFS_V4_1)
|
||||
PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id),
|
||||
PROC(CREATE_SESSION, enc_create_session, dec_create_session),
|
||||
|
|
|
|||
|
|
@ -550,6 +550,7 @@ enum {
|
|||
NFSPROC4_CLNT_SETACL,
|
||||
NFSPROC4_CLNT_FS_LOCATIONS,
|
||||
NFSPROC4_CLNT_RELEASE_LOCKOWNER,
|
||||
NFSPROC4_CLNT_SECINFO,
|
||||
|
||||
/* nfs41 */
|
||||
NFSPROC4_CLNT_EXCHANGE_ID,
|
||||
|
|
|
|||
|
|
@ -3,6 +3,7 @@
|
|||
|
||||
#include <linux/nfsacl.h>
|
||||
#include <linux/nfs3.h>
|
||||
#include <linux/sunrpc/gss_api.h>
|
||||
|
||||
/*
|
||||
* To change the maximum rsize and wsize supported by the NFS client, adjust
|
||||
|
|
@ -14,6 +15,9 @@
|
|||
#define NFS_DEF_FILE_IO_SIZE (4096U)
|
||||
#define NFS_MIN_FILE_IO_SIZE (1024U)
|
||||
|
||||
/* Forward declaration for NFS v3 */
|
||||
struct nfs4_secinfo_flavors;
|
||||
|
||||
struct nfs_fsid {
|
||||
uint64_t major;
|
||||
uint64_t minor;
|
||||
|
|
@ -936,6 +940,38 @@ struct nfs4_fs_locations_res {
|
|||
struct nfs4_sequence_res seq_res;
|
||||
};
|
||||
|
||||
struct nfs4_secinfo_oid {
|
||||
unsigned int len;
|
||||
char data[GSS_OID_MAX_LEN];
|
||||
};
|
||||
|
||||
struct nfs4_secinfo_gss {
|
||||
struct nfs4_secinfo_oid sec_oid4;
|
||||
unsigned int qop4;
|
||||
unsigned int service;
|
||||
};
|
||||
|
||||
struct nfs4_secinfo_flavor {
|
||||
unsigned int flavor;
|
||||
struct nfs4_secinfo_gss gss;
|
||||
};
|
||||
|
||||
struct nfs4_secinfo_flavors {
|
||||
unsigned int num_flavors;
|
||||
struct nfs4_secinfo_flavor flavors[0];
|
||||
};
|
||||
|
||||
struct nfs4_secinfo_arg {
|
||||
const struct nfs_fh *dir_fh;
|
||||
const struct qstr *name;
|
||||
struct nfs4_sequence_args seq_args;
|
||||
};
|
||||
|
||||
struct nfs4_secinfo_res {
|
||||
struct nfs4_secinfo_flavors *flavors;
|
||||
struct nfs4_sequence_res seq_res;
|
||||
};
|
||||
|
||||
#endif /* CONFIG_NFS_V4 */
|
||||
|
||||
struct nfstime4 {
|
||||
|
|
@ -1118,6 +1154,7 @@ struct nfs_rpc_ops {
|
|||
struct iattr *iattr);
|
||||
int (*init_client) (struct nfs_client *, const struct rpc_timeout *,
|
||||
const char *, rpc_authflavor_t, int);
|
||||
int (*secinfo)(struct inode *, const struct qstr *, struct nfs4_secinfo_flavors *);
|
||||
};
|
||||
|
||||
/*
|
||||
|
|
|
|||
Loading…
Reference in New Issue