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Diffstat (limited to 'fs/nfsd/nfs4xdr.c')
-rw-r--r--fs/nfsd/nfs4xdr.c2631
1 files changed, 1449 insertions, 1182 deletions
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 92c7dde148..b499fe9caa 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -2530,66 +2530,62 @@ nfsd4_decode_compound(struct nfsd4_compoundargs *argp)
return true;
}
-static __be32 *encode_change(__be32 *p, struct kstat *stat, struct inode *inode,
- struct svc_export *exp)
+static __be32 nfsd4_encode_nfs_fh4(struct xdr_stream *xdr,
+ struct knfsd_fh *fh_handle)
{
- if (exp->ex_flags & NFSEXP_V4ROOT) {
- *p++ = cpu_to_be32(convert_to_wallclock(exp->cd->flush_time));
- *p++ = 0;
- } else
- p = xdr_encode_hyper(p, nfsd4_change_attribute(stat, inode));
- return p;
+ return nfsd4_encode_opaque(xdr, fh_handle->fh_raw, fh_handle->fh_size);
}
+/* This is a frequently-encoded type; open-coded for speed */
static __be32 nfsd4_encode_nfstime4(struct xdr_stream *xdr,
- struct timespec64 *tv)
+ const struct timespec64 *tv)
{
__be32 *p;
p = xdr_reserve_space(xdr, XDR_UNIT * 3);
if (!p)
return nfserr_resource;
-
- p = xdr_encode_hyper(p, (s64)tv->tv_sec);
+ p = xdr_encode_hyper(p, tv->tv_sec);
*p = cpu_to_be32(tv->tv_nsec);
return nfs_ok;
}
-/*
- * ctime (in NFSv4, time_metadata) is not writeable, and the client
- * doesn't really care what resolution could theoretically be stored by
- * the filesystem.
- *
- * The client cares how close together changes can be while still
- * guaranteeing ctime changes. For most filesystems (which have
- * timestamps with nanosecond fields) that is limited by the resolution
- * of the time returned from current_time() (which I'm assuming to be
- * 1/HZ).
- */
-static __be32 *encode_time_delta(__be32 *p, struct inode *inode)
+static __be32 nfsd4_encode_specdata4(struct xdr_stream *xdr,
+ unsigned int major, unsigned int minor)
{
- struct timespec64 ts;
- u32 ns;
+ __be32 status;
- ns = max_t(u32, NSEC_PER_SEC/HZ, inode->i_sb->s_time_gran);
- ts = ns_to_timespec64(ns);
+ status = nfsd4_encode_uint32_t(xdr, major);
+ if (status != nfs_ok)
+ return status;
+ return nfsd4_encode_uint32_t(xdr, minor);
+}
- p = xdr_encode_hyper(p, ts.tv_sec);
- *p++ = cpu_to_be32(ts.tv_nsec);
+static __be32
+nfsd4_encode_change_info4(struct xdr_stream *xdr, const struct nfsd4_change_info *c)
+{
+ __be32 status;
- return p;
+ status = nfsd4_encode_bool(xdr, c->atomic);
+ if (status != nfs_ok)
+ return status;
+ status = nfsd4_encode_changeid4(xdr, c->before_change);
+ if (status != nfs_ok)
+ return status;
+ return nfsd4_encode_changeid4(xdr, c->after_change);
}
-static __be32
-nfsd4_encode_change_info4(struct xdr_stream *xdr, struct nfsd4_change_info *c)
+static __be32 nfsd4_encode_netaddr4(struct xdr_stream *xdr,
+ const struct nfs42_netaddr *addr)
{
- if (xdr_stream_encode_bool(xdr, c->atomic) < 0)
- return nfserr_resource;
- if (xdr_stream_encode_u64(xdr, c->before_change) < 0)
- return nfserr_resource;
- if (xdr_stream_encode_u64(xdr, c->after_change) < 0)
- return nfserr_resource;
- return nfs_ok;
+ __be32 status;
+
+ /* na_r_netid */
+ status = nfsd4_encode_opaque(xdr, addr->netid, addr->netid_len);
+ if (status != nfs_ok)
+ return status;
+ /* na_r_addr */
+ return nfsd4_encode_opaque(xdr, addr->addr, addr->addr_len);
}
/* Encode as an array of strings the string given with components
@@ -2661,9 +2657,6 @@ static __be32 nfsd4_encode_components(struct xdr_stream *xdr, char sep,
return nfsd4_encode_components_esc(xdr, sep, components, 0, 0);
}
-/*
- * encode a location element of a fs_locations structure
- */
static __be32 nfsd4_encode_fs_location4(struct xdr_stream *xdr,
struct nfsd4_fs_location *location)
{
@@ -2676,15 +2669,12 @@ static __be32 nfsd4_encode_fs_location4(struct xdr_stream *xdr,
status = nfsd4_encode_components(xdr, '/', location->path);
if (status)
return status;
- return 0;
+ return nfs_ok;
}
-/*
- * Encode a path in RFC3530 'pathname4' format
- */
-static __be32 nfsd4_encode_path(struct xdr_stream *xdr,
- const struct path *root,
- const struct path *path)
+static __be32 nfsd4_encode_pathname4(struct xdr_stream *xdr,
+ const struct path *root,
+ const struct path *path)
{
struct path cur = *path;
__be32 *p;
@@ -2752,89 +2742,59 @@ out_free:
return err;
}
-static __be32 nfsd4_encode_fsloc_fsroot(struct xdr_stream *xdr,
- struct svc_rqst *rqstp, const struct path *path)
+static __be32 nfsd4_encode_fs_locations4(struct xdr_stream *xdr,
+ struct svc_rqst *rqstp,
+ struct svc_export *exp)
{
+ struct nfsd4_fs_locations *fslocs = &exp->ex_fslocs;
struct svc_export *exp_ps;
- __be32 res;
+ unsigned int i;
+ __be32 status;
+ /* fs_root */
exp_ps = rqst_find_fsidzero_export(rqstp);
if (IS_ERR(exp_ps))
return nfserrno(PTR_ERR(exp_ps));
- res = nfsd4_encode_path(xdr, &exp_ps->ex_path, path);
+ status = nfsd4_encode_pathname4(xdr, &exp_ps->ex_path, &exp->ex_path);
exp_put(exp_ps);
- return res;
-}
-
-/*
- * encode a fs_locations structure
- */
-static __be32 nfsd4_encode_fs_locations(struct xdr_stream *xdr,
- struct svc_rqst *rqstp, struct svc_export *exp)
-{
- __be32 status;
- int i;
- __be32 *p;
- struct nfsd4_fs_locations *fslocs = &exp->ex_fslocs;
-
- status = nfsd4_encode_fsloc_fsroot(xdr, rqstp, &exp->ex_path);
- if (status)
+ if (status != nfs_ok)
return status;
- p = xdr_reserve_space(xdr, 4);
- if (!p)
+
+ /* locations<> */
+ if (xdr_stream_encode_u32(xdr, fslocs->locations_count) != XDR_UNIT)
return nfserr_resource;
- *p++ = cpu_to_be32(fslocs->locations_count);
- for (i=0; i<fslocs->locations_count; i++) {
+ for (i = 0; i < fslocs->locations_count; i++) {
status = nfsd4_encode_fs_location4(xdr, &fslocs->locations[i]);
- if (status)
+ if (status != nfs_ok)
return status;
}
- return 0;
-}
-static u32 nfs4_file_type(umode_t mode)
-{
- switch (mode & S_IFMT) {
- case S_IFIFO: return NF4FIFO;
- case S_IFCHR: return NF4CHR;
- case S_IFDIR: return NF4DIR;
- case S_IFBLK: return NF4BLK;
- case S_IFLNK: return NF4LNK;
- case S_IFREG: return NF4REG;
- case S_IFSOCK: return NF4SOCK;
- default: return NF4BAD;
- }
+ return nfs_ok;
}
-static inline __be32
-nfsd4_encode_aclname(struct xdr_stream *xdr, struct svc_rqst *rqstp,
- struct nfs4_ace *ace)
+static __be32 nfsd4_encode_nfsace4(struct xdr_stream *xdr, struct svc_rqst *rqstp,
+ struct nfs4_ace *ace)
{
+ __be32 status;
+
+ /* type */
+ status = nfsd4_encode_acetype4(xdr, ace->type);
+ if (status != nfs_ok)
+ return nfserr_resource;
+ /* flag */
+ status = nfsd4_encode_aceflag4(xdr, ace->flag);
+ if (status != nfs_ok)
+ return nfserr_resource;
+ /* access mask */
+ status = nfsd4_encode_acemask4(xdr, ace->access_mask & NFS4_ACE_MASK_ALL);
+ if (status != nfs_ok)
+ return nfserr_resource;
+ /* who */
if (ace->whotype != NFS4_ACL_WHO_NAMED)
return nfs4_acl_write_who(xdr, ace->whotype);
- else if (ace->flag & NFS4_ACE_IDENTIFIER_GROUP)
+ if (ace->flag & NFS4_ACE_IDENTIFIER_GROUP)
return nfsd4_encode_group(xdr, rqstp, ace->who_gid);
- else
- return nfsd4_encode_user(xdr, rqstp, ace->who_uid);
-}
-
-static inline __be32
-nfsd4_encode_layout_types(struct xdr_stream *xdr, u32 layout_types)
-{
- __be32 *p;
- unsigned long i = hweight_long(layout_types);
-
- p = xdr_reserve_space(xdr, 4 + 4 * i);
- if (!p)
- return nfserr_resource;
-
- *p++ = cpu_to_be32(i);
-
- for (i = LAYOUT_NFSV4_1_FILES; i < LAYOUT_TYPE_MAX; ++i)
- if (layout_types & (1 << i))
- *p++ = cpu_to_be32(i);
-
- return 0;
+ return nfsd4_encode_user(xdr, rqstp, ace->who_uid);
}
#define WORD0_ABSENT_FS_ATTRS (FATTR4_WORD0_FS_LOCATIONS | FATTR4_WORD0_FSID | \
@@ -2906,12 +2866,12 @@ static int nfsd4_get_mounted_on_ino(struct svc_export *exp, u64 *pino)
}
static __be32
-nfsd4_encode_bitmap(struct xdr_stream *xdr, u32 bmval0, u32 bmval1, u32 bmval2)
+nfsd4_encode_bitmap4(struct xdr_stream *xdr, u32 bmval0, u32 bmval1, u32 bmval2)
{
__be32 *p;
if (bmval2) {
- p = xdr_reserve_space(xdr, 16);
+ p = xdr_reserve_space(xdr, XDR_UNIT * 4);
if (!p)
goto out_resource;
*p++ = cpu_to_be32(3);
@@ -2919,94 +2879,684 @@ nfsd4_encode_bitmap(struct xdr_stream *xdr, u32 bmval0, u32 bmval1, u32 bmval2)
*p++ = cpu_to_be32(bmval1);
*p++ = cpu_to_be32(bmval2);
} else if (bmval1) {
- p = xdr_reserve_space(xdr, 12);
+ p = xdr_reserve_space(xdr, XDR_UNIT * 3);
if (!p)
goto out_resource;
*p++ = cpu_to_be32(2);
*p++ = cpu_to_be32(bmval0);
*p++ = cpu_to_be32(bmval1);
} else {
- p = xdr_reserve_space(xdr, 8);
+ p = xdr_reserve_space(xdr, XDR_UNIT * 2);
if (!p)
goto out_resource;
*p++ = cpu_to_be32(1);
*p++ = cpu_to_be32(bmval0);
}
- return 0;
+ return nfs_ok;
out_resource:
return nfserr_resource;
}
+struct nfsd4_fattr_args {
+ struct svc_rqst *rqstp;
+ struct svc_fh *fhp;
+ struct svc_export *exp;
+ struct dentry *dentry;
+ struct kstat stat;
+ struct kstatfs statfs;
+ struct nfs4_acl *acl;
+ u64 size;
+#ifdef CONFIG_NFSD_V4_SECURITY_LABEL
+ void *context;
+ int contextlen;
+#endif
+ u32 rdattr_err;
+ bool contextsupport;
+ bool ignore_crossmnt;
+};
+
+typedef __be32(*nfsd4_enc_attr)(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args);
+
+static __be32 nfsd4_encode_fattr4__noop(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfs_ok;
+}
+
+static __be32 nfsd4_encode_fattr4__true(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_bool(xdr, true);
+}
+
+static __be32 nfsd4_encode_fattr4__false(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_bool(xdr, false);
+}
+
+static __be32 nfsd4_encode_fattr4_supported_attrs(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ struct nfsd4_compoundres *resp = args->rqstp->rq_resp;
+ u32 minorversion = resp->cstate.minorversion;
+ u32 supp[3];
+
+ memcpy(supp, nfsd_suppattrs[minorversion], sizeof(supp));
+ if (!IS_POSIXACL(d_inode(args->dentry)))
+ supp[0] &= ~FATTR4_WORD0_ACL;
+ if (!args->contextsupport)
+ supp[2] &= ~FATTR4_WORD2_SECURITY_LABEL;
+
+ return nfsd4_encode_bitmap4(xdr, supp[0], supp[1], supp[2]);
+}
+
+static __be32 nfsd4_encode_fattr4_type(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ __be32 *p;
+
+ p = xdr_reserve_space(xdr, XDR_UNIT);
+ if (!p)
+ return nfserr_resource;
+
+ switch (args->stat.mode & S_IFMT) {
+ case S_IFIFO:
+ *p = cpu_to_be32(NF4FIFO);
+ break;
+ case S_IFCHR:
+ *p = cpu_to_be32(NF4CHR);
+ break;
+ case S_IFDIR:
+ *p = cpu_to_be32(NF4DIR);
+ break;
+ case S_IFBLK:
+ *p = cpu_to_be32(NF4BLK);
+ break;
+ case S_IFLNK:
+ *p = cpu_to_be32(NF4LNK);
+ break;
+ case S_IFREG:
+ *p = cpu_to_be32(NF4REG);
+ break;
+ case S_IFSOCK:
+ *p = cpu_to_be32(NF4SOCK);
+ break;
+ default:
+ return nfserr_serverfault;
+ }
+
+ return nfs_ok;
+}
+
+static __be32 nfsd4_encode_fattr4_fh_expire_type(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ u32 mask;
+
+ mask = NFS4_FH_PERSISTENT;
+ if (!(args->exp->ex_flags & NFSEXP_NOSUBTREECHECK))
+ mask |= NFS4_FH_VOL_RENAME;
+ return nfsd4_encode_uint32_t(xdr, mask);
+}
+
+static __be32 nfsd4_encode_fattr4_change(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ const struct svc_export *exp = args->exp;
+ u64 c;
+
+ if (unlikely(exp->ex_flags & NFSEXP_V4ROOT)) {
+ u32 flush_time = convert_to_wallclock(exp->cd->flush_time);
+
+ if (xdr_stream_encode_u32(xdr, flush_time) != XDR_UNIT)
+ return nfserr_resource;
+ if (xdr_stream_encode_u32(xdr, 0) != XDR_UNIT)
+ return nfserr_resource;
+ return nfs_ok;
+ }
+
+ c = nfsd4_change_attribute(&args->stat, d_inode(args->dentry));
+ return nfsd4_encode_changeid4(xdr, c);
+}
+
+static __be32 nfsd4_encode_fattr4_size(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_uint64_t(xdr, args->size);
+}
+
+static __be32 nfsd4_encode_fattr4_fsid(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ __be32 *p;
+
+ p = xdr_reserve_space(xdr, XDR_UNIT * 2 + XDR_UNIT * 2);
+ if (!p)
+ return nfserr_resource;
+
+ if (unlikely(args->exp->ex_fslocs.migrated)) {
+ p = xdr_encode_hyper(p, NFS4_REFERRAL_FSID_MAJOR);
+ xdr_encode_hyper(p, NFS4_REFERRAL_FSID_MINOR);
+ return nfs_ok;
+ }
+ switch (fsid_source(args->fhp)) {
+ case FSIDSOURCE_FSID:
+ p = xdr_encode_hyper(p, (u64)args->exp->ex_fsid);
+ xdr_encode_hyper(p, (u64)0);
+ break;
+ case FSIDSOURCE_DEV:
+ *p++ = xdr_zero;
+ *p++ = cpu_to_be32(MAJOR(args->stat.dev));
+ *p++ = xdr_zero;
+ *p = cpu_to_be32(MINOR(args->stat.dev));
+ break;
+ case FSIDSOURCE_UUID:
+ xdr_encode_opaque_fixed(p, args->exp->ex_uuid, EX_UUID_LEN);
+ break;
+ }
+
+ return nfs_ok;
+}
+
+static __be32 nfsd4_encode_fattr4_lease_time(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ struct nfsd_net *nn = net_generic(SVC_NET(args->rqstp), nfsd_net_id);
+
+ return nfsd4_encode_nfs_lease4(xdr, nn->nfsd4_lease);
+}
+
+static __be32 nfsd4_encode_fattr4_rdattr_error(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_uint32_t(xdr, args->rdattr_err);
+}
+
+static __be32 nfsd4_encode_fattr4_aclsupport(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ u32 mask;
+
+ mask = 0;
+ if (IS_POSIXACL(d_inode(args->dentry)))
+ mask = ACL4_SUPPORT_ALLOW_ACL | ACL4_SUPPORT_DENY_ACL;
+ return nfsd4_encode_uint32_t(xdr, mask);
+}
+
+static __be32 nfsd4_encode_fattr4_acl(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ struct nfs4_acl *acl = args->acl;
+ struct nfs4_ace *ace;
+ __be32 status;
+
+ /* nfsace4<> */
+ if (!acl) {
+ if (xdr_stream_encode_u32(xdr, 0) != XDR_UNIT)
+ return nfserr_resource;
+ } else {
+ if (xdr_stream_encode_u32(xdr, acl->naces) != XDR_UNIT)
+ return nfserr_resource;
+ for (ace = acl->aces; ace < acl->aces + acl->naces; ace++) {
+ status = nfsd4_encode_nfsace4(xdr, args->rqstp, ace);
+ if (status != nfs_ok)
+ return status;
+ }
+ }
+ return nfs_ok;
+}
+
+static __be32 nfsd4_encode_fattr4_filehandle(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_nfs_fh4(xdr, &args->fhp->fh_handle);
+}
+
+static __be32 nfsd4_encode_fattr4_fileid(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_uint64_t(xdr, args->stat.ino);
+}
+
+static __be32 nfsd4_encode_fattr4_files_avail(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_uint64_t(xdr, args->statfs.f_ffree);
+}
+
+static __be32 nfsd4_encode_fattr4_files_free(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_uint64_t(xdr, args->statfs.f_ffree);
+}
+
+static __be32 nfsd4_encode_fattr4_files_total(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_uint64_t(xdr, args->statfs.f_files);
+}
+
+static __be32 nfsd4_encode_fattr4_fs_locations(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_fs_locations4(xdr, args->rqstp, args->exp);
+}
+
+static __be32 nfsd4_encode_fattr4_maxfilesize(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ struct super_block *sb = args->exp->ex_path.mnt->mnt_sb;
+
+ return nfsd4_encode_uint64_t(xdr, sb->s_maxbytes);
+}
+
+static __be32 nfsd4_encode_fattr4_maxlink(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_uint32_t(xdr, 255);
+}
+
+static __be32 nfsd4_encode_fattr4_maxname(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_uint32_t(xdr, args->statfs.f_namelen);
+}
+
+static __be32 nfsd4_encode_fattr4_maxread(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_uint64_t(xdr, svc_max_payload(args->rqstp));
+}
+
+static __be32 nfsd4_encode_fattr4_maxwrite(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_uint64_t(xdr, svc_max_payload(args->rqstp));
+}
+
+static __be32 nfsd4_encode_fattr4_mode(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_mode4(xdr, args->stat.mode & S_IALLUGO);
+}
+
+static __be32 nfsd4_encode_fattr4_numlinks(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_uint32_t(xdr, args->stat.nlink);
+}
+
+static __be32 nfsd4_encode_fattr4_owner(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_user(xdr, args->rqstp, args->stat.uid);
+}
+
+static __be32 nfsd4_encode_fattr4_owner_group(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_group(xdr, args->rqstp, args->stat.gid);
+}
+
+static __be32 nfsd4_encode_fattr4_rawdev(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_specdata4(xdr, MAJOR(args->stat.rdev),
+ MINOR(args->stat.rdev));
+}
+
+static __be32 nfsd4_encode_fattr4_space_avail(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ u64 avail = (u64)args->statfs.f_bavail * (u64)args->statfs.f_bsize;
+
+ return nfsd4_encode_uint64_t(xdr, avail);
+}
+
+static __be32 nfsd4_encode_fattr4_space_free(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ u64 free = (u64)args->statfs.f_bfree * (u64)args->statfs.f_bsize;
+
+ return nfsd4_encode_uint64_t(xdr, free);
+}
+
+static __be32 nfsd4_encode_fattr4_space_total(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ u64 total = (u64)args->statfs.f_blocks * (u64)args->statfs.f_bsize;
+
+ return nfsd4_encode_uint64_t(xdr, total);
+}
+
+static __be32 nfsd4_encode_fattr4_space_used(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_uint64_t(xdr, (u64)args->stat.blocks << 9);
+}
+
+static __be32 nfsd4_encode_fattr4_time_access(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_nfstime4(xdr, &args->stat.atime);
+}
+
+static __be32 nfsd4_encode_fattr4_time_create(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_nfstime4(xdr, &args->stat.btime);
+}
+
+/*
+ * ctime (in NFSv4, time_metadata) is not writeable, and the client
+ * doesn't really care what resolution could theoretically be stored by
+ * the filesystem.
+ *
+ * The client cares how close together changes can be while still
+ * guaranteeing ctime changes. For most filesystems (which have
+ * timestamps with nanosecond fields) that is limited by the resolution
+ * of the time returned from current_time() (which I'm assuming to be
+ * 1/HZ).
+ */
+static __be32 nfsd4_encode_fattr4_time_delta(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ const struct inode *inode = d_inode(args->dentry);
+ u32 ns = max_t(u32, NSEC_PER_SEC/HZ, inode->i_sb->s_time_gran);
+ struct timespec64 ts = ns_to_timespec64(ns);
+
+ return nfsd4_encode_nfstime4(xdr, &ts);
+}
+
+static __be32 nfsd4_encode_fattr4_time_metadata(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_nfstime4(xdr, &args->stat.ctime);
+}
+
+static __be32 nfsd4_encode_fattr4_time_modify(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_nfstime4(xdr, &args->stat.mtime);
+}
+
+static __be32 nfsd4_encode_fattr4_mounted_on_fileid(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ u64 ino;
+ int err;
+
+ if (!args->ignore_crossmnt &&
+ args->dentry == args->exp->ex_path.mnt->mnt_root) {
+ err = nfsd4_get_mounted_on_ino(args->exp, &ino);
+ if (err)
+ return nfserrno(err);
+ } else
+ ino = args->stat.ino;
+
+ return nfsd4_encode_uint64_t(xdr, ino);
+}
+
+#ifdef CONFIG_NFSD_PNFS
+
+static __be32 nfsd4_encode_fattr4_fs_layout_types(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ unsigned long mask = args->exp->ex_layout_types;
+ int i;
+
+ /* Hamming weight of @mask is the number of layout types to return */
+ if (xdr_stream_encode_u32(xdr, hweight_long(mask)) != XDR_UNIT)
+ return nfserr_resource;
+ for (i = LAYOUT_NFSV4_1_FILES; i < LAYOUT_TYPE_MAX; ++i)
+ if (mask & BIT(i)) {
+ /* layouttype4 */
+ if (xdr_stream_encode_u32(xdr, i) != XDR_UNIT)
+ return nfserr_resource;
+ }
+ return nfs_ok;
+}
+
+static __be32 nfsd4_encode_fattr4_layout_types(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ unsigned long mask = args->exp->ex_layout_types;
+ int i;
+
+ /* Hamming weight of @mask is the number of layout types to return */
+ if (xdr_stream_encode_u32(xdr, hweight_long(mask)) != XDR_UNIT)
+ return nfserr_resource;
+ for (i = LAYOUT_NFSV4_1_FILES; i < LAYOUT_TYPE_MAX; ++i)
+ if (mask & BIT(i)) {
+ /* layouttype4 */
+ if (xdr_stream_encode_u32(xdr, i) != XDR_UNIT)
+ return nfserr_resource;
+ }
+ return nfs_ok;
+}
+
+static __be32 nfsd4_encode_fattr4_layout_blksize(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_uint32_t(xdr, args->stat.blksize);
+}
+
+#endif
+
+static __be32 nfsd4_encode_fattr4_suppattr_exclcreat(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ struct nfsd4_compoundres *resp = args->rqstp->rq_resp;
+ u32 supp[3];
+
+ memcpy(supp, nfsd_suppattrs[resp->cstate.minorversion], sizeof(supp));
+ supp[0] &= NFSD_SUPPATTR_EXCLCREAT_WORD0;
+ supp[1] &= NFSD_SUPPATTR_EXCLCREAT_WORD1;
+ supp[2] &= NFSD_SUPPATTR_EXCLCREAT_WORD2;
+
+ return nfsd4_encode_bitmap4(xdr, supp[0], supp[1], supp[2]);
+}
+
+#ifdef CONFIG_NFSD_V4_SECURITY_LABEL
+static __be32 nfsd4_encode_fattr4_sec_label(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ return nfsd4_encode_security_label(xdr, args->rqstp,
+ args->context, args->contextlen);
+}
+#endif
+
+static __be32 nfsd4_encode_fattr4_xattr_support(struct xdr_stream *xdr,
+ const struct nfsd4_fattr_args *args)
+{
+ int err = xattr_supports_user_prefix(d_inode(args->dentry));
+
+ return nfsd4_encode_bool(xdr, err == 0);
+}
+
+static const nfsd4_enc_attr nfsd4_enc_fattr4_encode_ops[] = {
+ [FATTR4_SUPPORTED_ATTRS] = nfsd4_encode_fattr4_supported_attrs,
+ [FATTR4_TYPE] = nfsd4_encode_fattr4_type,
+ [FATTR4_FH_EXPIRE_TYPE] = nfsd4_encode_fattr4_fh_expire_type,
+ [FATTR4_CHANGE] = nfsd4_encode_fattr4_change,
+ [FATTR4_SIZE] = nfsd4_encode_fattr4_size,
+ [FATTR4_LINK_SUPPORT] = nfsd4_encode_fattr4__true,
+ [FATTR4_SYMLINK_SUPPORT] = nfsd4_encode_fattr4__true,
+ [FATTR4_NAMED_ATTR] = nfsd4_encode_fattr4__false,
+ [FATTR4_FSID] = nfsd4_encode_fattr4_fsid,
+ [FATTR4_UNIQUE_HANDLES] = nfsd4_encode_fattr4__true,
+ [FATTR4_LEASE_TIME] = nfsd4_encode_fattr4_lease_time,
+ [FATTR4_RDATTR_ERROR] = nfsd4_encode_fattr4_rdattr_error,
+ [FATTR4_ACL] = nfsd4_encode_fattr4_acl,
+ [FATTR4_ACLSUPPORT] = nfsd4_encode_fattr4_aclsupport,
+ [FATTR4_ARCHIVE] = nfsd4_encode_fattr4__noop,
+ [FATTR4_CANSETTIME] = nfsd4_encode_fattr4__true,
+ [FATTR4_CASE_INSENSITIVE] = nfsd4_encode_fattr4__false,
+ [FATTR4_CASE_PRESERVING] = nfsd4_encode_fattr4__true,
+ [FATTR4_CHOWN_RESTRICTED] = nfsd4_encode_fattr4__true,
+ [FATTR4_FILEHANDLE] = nfsd4_encode_fattr4_filehandle,
+ [FATTR4_FILEID] = nfsd4_encode_fattr4_fileid,
+ [FATTR4_FILES_AVAIL] = nfsd4_encode_fattr4_files_avail,
+ [FATTR4_FILES_FREE] = nfsd4_encode_fattr4_files_free,
+ [FATTR4_FILES_TOTAL] = nfsd4_encode_fattr4_files_total,
+ [FATTR4_FS_LOCATIONS] = nfsd4_encode_fattr4_fs_locations,
+ [FATTR4_HIDDEN] = nfsd4_encode_fattr4__noop,
+ [FATTR4_HOMOGENEOUS] = nfsd4_encode_fattr4__true,
+ [FATTR4_MAXFILESIZE] = nfsd4_encode_fattr4_maxfilesize,
+ [FATTR4_MAXLINK] = nfsd4_encode_fattr4_maxlink,
+ [FATTR4_MAXNAME] = nfsd4_encode_fattr4_maxname,
+ [FATTR4_MAXREAD] = nfsd4_encode_fattr4_maxread,
+ [FATTR4_MAXWRITE] = nfsd4_encode_fattr4_maxwrite,
+ [FATTR4_MIMETYPE] = nfsd4_encode_fattr4__noop,
+ [FATTR4_MODE] = nfsd4_encode_fattr4_mode,
+ [FATTR4_NO_TRUNC] = nfsd4_encode_fattr4__true,
+ [FATTR4_NUMLINKS] = nfsd4_encode_fattr4_numlinks,
+ [FATTR4_OWNER] = nfsd4_encode_fattr4_owner,
+ [FATTR4_OWNER_GROUP] = nfsd4_encode_fattr4_owner_group,
+ [FATTR4_QUOTA_AVAIL_HARD] = nfsd4_encode_fattr4__noop,
+ [FATTR4_QUOTA_AVAIL_SOFT] = nfsd4_encode_fattr4__noop,
+ [FATTR4_QUOTA_USED] = nfsd4_encode_fattr4__noop,
+ [FATTR4_RAWDEV] = nfsd4_encode_fattr4_rawdev,
+ [FATTR4_SPACE_AVAIL] = nfsd4_encode_fattr4_space_avail,
+ [FATTR4_SPACE_FREE] = nfsd4_encode_fattr4_space_free,
+ [FATTR4_SPACE_TOTAL] = nfsd4_encode_fattr4_space_total,
+ [FATTR4_SPACE_USED] = nfsd4_encode_fattr4_space_used,
+ [FATTR4_SYSTEM] = nfsd4_encode_fattr4__noop,
+ [FATTR4_TIME_ACCESS] = nfsd4_encode_fattr4_time_access,
+ [FATTR4_TIME_ACCESS_SET] = nfsd4_encode_fattr4__noop,
+ [FATTR4_TIME_BACKUP] = nfsd4_encode_fattr4__noop,
+ [FATTR4_TIME_CREATE] = nfsd4_encode_fattr4_time_create,
+ [FATTR4_TIME_DELTA] = nfsd4_encode_fattr4_time_delta,
+ [FATTR4_TIME_METADATA] = nfsd4_encode_fattr4_time_metadata,
+ [FATTR4_TIME_MODIFY] = nfsd4_encode_fattr4_time_modify,
+ [FATTR4_TIME_MODIFY_SET] = nfsd4_encode_fattr4__noop,
+ [FATTR4_MOUNTED_ON_FILEID] = nfsd4_encode_fattr4_mounted_on_fileid,
+ [FATTR4_DIR_NOTIF_DELAY] = nfsd4_encode_fattr4__noop,
+ [FATTR4_DIRENT_NOTIF_DELAY] = nfsd4_encode_fattr4__noop,
+ [FATTR4_DACL] = nfsd4_encode_fattr4__noop,
+ [FATTR4_SACL] = nfsd4_encode_fattr4__noop,
+ [FATTR4_CHANGE_POLICY] = nfsd4_encode_fattr4__noop,
+ [FATTR4_FS_STATUS] = nfsd4_encode_fattr4__noop,
+
+#ifdef CONFIG_NFSD_PNFS
+ [FATTR4_FS_LAYOUT_TYPES] = nfsd4_encode_fattr4_fs_layout_types,
+ [FATTR4_LAYOUT_HINT] = nfsd4_encode_fattr4__noop,
+ [FATTR4_LAYOUT_TYPES] = nfsd4_encode_fattr4_layout_types,
+ [FATTR4_LAYOUT_BLKSIZE] = nfsd4_encode_fattr4_layout_blksize,
+ [FATTR4_LAYOUT_ALIGNMENT] = nfsd4_encode_fattr4__noop,
+#else
+ [FATTR4_FS_LAYOUT_TYPES] = nfsd4_encode_fattr4__noop,
+ [FATTR4_LAYOUT_HINT] = nfsd4_encode_fattr4__noop,
+ [FATTR4_LAYOUT_TYPES] = nfsd4_encode_fattr4__noop,
+ [FATTR4_LAYOUT_BLKSIZE] = nfsd4_encode_fattr4__noop,
+ [FATTR4_LAYOUT_ALIGNMENT] = nfsd4_encode_fattr4__noop,
+#endif
+
+ [FATTR4_FS_LOCATIONS_INFO] = nfsd4_encode_fattr4__noop,
+ [FATTR4_MDSTHRESHOLD] = nfsd4_encode_fattr4__noop,
+ [FATTR4_RETENTION_GET] = nfsd4_encode_fattr4__noop,
+ [FATTR4_RETENTION_SET] = nfsd4_encode_fattr4__noop,
+ [FATTR4_RETENTEVT_GET] = nfsd4_encode_fattr4__noop,
+ [FATTR4_RETENTEVT_SET] = nfsd4_encode_fattr4__noop,
+ [FATTR4_RETENTION_HOLD] = nfsd4_encode_fattr4__noop,
+ [FATTR4_MODE_SET_MASKED] = nfsd4_encode_fattr4__noop,
+ [FATTR4_SUPPATTR_EXCLCREAT] = nfsd4_encode_fattr4_suppattr_exclcreat,
+ [FATTR4_FS_CHARSET_CAP] = nfsd4_encode_fattr4__noop,
+ [FATTR4_CLONE_BLKSIZE] = nfsd4_encode_fattr4__noop,
+ [FATTR4_SPACE_FREED] = nfsd4_encode_fattr4__noop,
+ [FATTR4_CHANGE_ATTR_TYPE] = nfsd4_encode_fattr4__noop,
+
+#ifdef CONFIG_NFSD_V4_SECURITY_LABEL
+ [FATTR4_SEC_LABEL] = nfsd4_encode_fattr4_sec_label,
+#else
+ [FATTR4_SEC_LABEL] = nfsd4_encode_fattr4__noop,
+#endif
+
+ [FATTR4_MODE_UMASK] = nfsd4_encode_fattr4__noop,
+ [FATTR4_XATTR_SUPPORT] = nfsd4_encode_fattr4_xattr_support,
+};
+
/*
* Note: @fhp can be NULL; in this case, we might have to compose the filehandle
* ourselves.
*/
static __be32
-nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp,
- struct svc_export *exp,
- struct dentry *dentry, u32 *bmval,
- struct svc_rqst *rqstp, int ignore_crossmnt)
+nfsd4_encode_fattr4(struct svc_rqst *rqstp, struct xdr_stream *xdr,
+ struct svc_fh *fhp, struct svc_export *exp,
+ struct dentry *dentry, const u32 *bmval,
+ int ignore_crossmnt)
{
- u32 bmval0 = bmval[0];
- u32 bmval1 = bmval[1];
- u32 bmval2 = bmval[2];
- struct kstat stat;
+ struct nfsd4_fattr_args args;
struct svc_fh *tempfh = NULL;
- struct kstatfs statfs;
- __be32 *p, *attrlen_p;
int starting_len = xdr->buf->len;
+ __be32 *attrlen_p, status;
int attrlen_offset;
- u32 dummy;
- u64 dummy64;
- u32 rdattr_err = 0;
- __be32 status;
int err;
- struct nfs4_acl *acl = NULL;
-#ifdef CONFIG_NFSD_V4_SECURITY_LABEL
- void *context = NULL;
- int contextlen;
-#endif
- bool contextsupport = false;
struct nfsd4_compoundres *resp = rqstp->rq_resp;
u32 minorversion = resp->cstate.minorversion;
struct path path = {
.mnt = exp->ex_path.mnt,
.dentry = dentry,
};
- struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id);
+ union {
+ u32 attrmask[3];
+ unsigned long mask[2];
+ } u;
+ unsigned long bit;
+
+ WARN_ON_ONCE(bmval[1] & NFSD_WRITEONLY_ATTRS_WORD1);
+ WARN_ON_ONCE(!nfsd_attrs_supported(minorversion, bmval));
- BUG_ON(bmval1 & NFSD_WRITEONLY_ATTRS_WORD1);
- BUG_ON(!nfsd_attrs_supported(minorversion, bmval));
+ args.rqstp = rqstp;
+ args.exp = exp;
+ args.dentry = dentry;
+ args.ignore_crossmnt = (ignore_crossmnt != 0);
+ /*
+ * Make a local copy of the attribute bitmap that can be modified.
+ */
+ memset(&u, 0, sizeof(u));
+ u.attrmask[0] = bmval[0];
+ u.attrmask[1] = bmval[1];
+ u.attrmask[2] = bmval[2];
+
+ args.rdattr_err = 0;
if (exp->ex_fslocs.migrated) {
- status = fattr_handle_absent_fs(&bmval0, &bmval1, &bmval2, &rdattr_err);
+ status = fattr_handle_absent_fs(&u.attrmask[0], &u.attrmask[1],
+ &u.attrmask[2], &args.rdattr_err);
if (status)
goto out;
}
- if (bmval0 & (FATTR4_WORD0_CHANGE | FATTR4_WORD0_SIZE)) {
+ args.size = 0;
+ if (u.attrmask[0] & (FATTR4_WORD0_CHANGE | FATTR4_WORD0_SIZE)) {
status = nfsd4_deleg_getattr_conflict(rqstp, d_inode(dentry));
if (status)
goto out;
}
- err = vfs_getattr(&path, &stat,
+ err = vfs_getattr(&path, &args.stat,
STATX_BASIC_STATS | STATX_BTIME | STATX_CHANGE_COOKIE,
AT_STATX_SYNC_AS_STAT);
if (err)
goto out_nfserr;
- if (!(stat.result_mask & STATX_BTIME))
+ args.size = args.stat.size;
+
+ if (!(args.stat.result_mask & STATX_BTIME))
/* underlying FS does not offer btime so we can't share it */
- bmval1 &= ~FATTR4_WORD1_TIME_CREATE;
- if ((bmval0 & (FATTR4_WORD0_FILES_AVAIL | FATTR4_WORD0_FILES_FREE |
+ u.attrmask[1] &= ~FATTR4_WORD1_TIME_CREATE;
+ if ((u.attrmask[0] & (FATTR4_WORD0_FILES_AVAIL | FATTR4_WORD0_FILES_FREE |
FATTR4_WORD0_FILES_TOTAL | FATTR4_WORD0_MAXNAME)) ||
- (bmval1 & (FATTR4_WORD1_SPACE_AVAIL | FATTR4_WORD1_SPACE_FREE |
+ (u.attrmask[1] & (FATTR4_WORD1_SPACE_AVAIL | FATTR4_WORD1_SPACE_FREE |
FATTR4_WORD1_SPACE_TOTAL))) {
- err = vfs_statfs(&path, &statfs);
+ err = vfs_statfs(&path, &args.statfs);
if (err)
goto out_nfserr;
}
- if ((bmval0 & (FATTR4_WORD0_FILEHANDLE | FATTR4_WORD0_FSID)) && !fhp) {
+ if ((u.attrmask[0] & (FATTR4_WORD0_FILEHANDLE | FATTR4_WORD0_FSID)) &&
+ !fhp) {
tempfh = kmalloc(sizeof(struct svc_fh), GFP_KERNEL);
status = nfserr_jukebox;
if (!tempfh)
@@ -3015,12 +3565,15 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp,
status = fh_compose(tempfh, exp, dentry, NULL);
if (status)
goto out;
- fhp = tempfh;
- }
- if (bmval0 & FATTR4_WORD0_ACL) {
- err = nfsd4_get_nfs4_acl(rqstp, dentry, &acl);
+ args.fhp = tempfh;
+ } else
+ args.fhp = fhp;
+
+ args.acl = NULL;
+ if (u.attrmask[0] & FATTR4_WORD0_ACL) {
+ err = nfsd4_get_nfs4_acl(rqstp, dentry, &args.acl);
if (err == -EOPNOTSUPP)
- bmval0 &= ~FATTR4_WORD0_ACL;
+ u.attrmask[0] &= ~FATTR4_WORD0_ACL;
else if (err == -EINVAL) {
status = nfserr_attrnotsupp;
goto out;
@@ -3028,452 +3581,53 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp,
goto out_nfserr;
}
+ args.contextsupport = false;
+
#ifdef CONFIG_NFSD_V4_SECURITY_LABEL
- if ((bmval2 & FATTR4_WORD2_SECURITY_LABEL) ||
- bmval0 & FATTR4_WORD0_SUPPORTED_ATTRS) {
+ args.context = NULL;
+ if ((u.attrmask[2] & FATTR4_WORD2_SECURITY_LABEL) ||
+ u.attrmask[0] & FATTR4_WORD0_SUPPORTED_ATTRS) {
if (exp->ex_flags & NFSEXP_SECURITY_LABEL)
err = security_inode_getsecctx(d_inode(dentry),
- &context, &contextlen);
+ &args.context, &args.contextlen);
else
err = -EOPNOTSUPP;
- contextsupport = (err == 0);
- if (bmval2 & FATTR4_WORD2_SECURITY_LABEL) {
+ args.contextsupport = (err == 0);
+ if (u.attrmask[2] & FATTR4_WORD2_SECURITY_LABEL) {
if (err == -EOPNOTSUPP)
- bmval2 &= ~FATTR4_WORD2_SECURITY_LABEL;
+ u.attrmask[2] &= ~FATTR4_WORD2_SECURITY_LABEL;
else if (err)
goto out_nfserr;
}
}
#endif /* CONFIG_NFSD_V4_SECURITY_LABEL */
- status = nfsd4_encode_bitmap(xdr, bmval0, bmval1, bmval2);
+ /* attrmask */
+ status = nfsd4_encode_bitmap4(xdr, u.attrmask[0],
+ u.attrmask[1], u.attrmask[2]);
if (status)
goto out;
+ /* attr_vals */
attrlen_offset = xdr->buf->len;
attrlen_p = xdr_reserve_space(xdr, XDR_UNIT);
if (!attrlen_p)
goto out_resource;
-
- if (bmval0 & FATTR4_WORD0_SUPPORTED_ATTRS) {
- u32 supp[3];
-
- memcpy(supp, nfsd_suppattrs[minorversion], sizeof(supp));
-
- if (!IS_POSIXACL(dentry->d_inode))
- supp[0] &= ~FATTR4_WORD0_ACL;
- if (!contextsupport)
- supp[2] &= ~FATTR4_WORD2_SECURITY_LABEL;
- if (!supp[2]) {
- p = xdr_reserve_space(xdr, 12);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(2);
- *p++ = cpu_to_be32(supp[0]);
- *p++ = cpu_to_be32(supp[1]);
- } else {
- p = xdr_reserve_space(xdr, 16);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(3);
- *p++ = cpu_to_be32(supp[0]);
- *p++ = cpu_to_be32(supp[1]);
- *p++ = cpu_to_be32(supp[2]);
- }
- }
- if (bmval0 & FATTR4_WORD0_TYPE) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- dummy = nfs4_file_type(stat.mode);
- if (dummy == NF4BAD) {
- status = nfserr_serverfault;
+ for_each_set_bit(bit, (const unsigned long *)&u.mask,
+ ARRAY_SIZE(nfsd4_enc_fattr4_encode_ops)) {
+ status = nfsd4_enc_fattr4_encode_ops[bit](xdr, &args);
+ if (status != nfs_ok)
goto out;
- }
- *p++ = cpu_to_be32(dummy);
- }
- if (bmval0 & FATTR4_WORD0_FH_EXPIRE_TYPE) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- if (exp->ex_flags & NFSEXP_NOSUBTREECHECK)
- *p++ = cpu_to_be32(NFS4_FH_PERSISTENT);
- else
- *p++ = cpu_to_be32(NFS4_FH_PERSISTENT|
- NFS4_FH_VOL_RENAME);
- }
- if (bmval0 & FATTR4_WORD0_CHANGE) {
- p = xdr_reserve_space(xdr, 8);
- if (!p)
- goto out_resource;
- p = encode_change(p, &stat, d_inode(dentry), exp);
}
- if (bmval0 & FATTR4_WORD0_SIZE) {
- p = xdr_reserve_space(xdr, 8);
- if (!p)
- goto out_resource;
- p = xdr_encode_hyper(p, stat.size);
- }
- if (bmval0 & FATTR4_WORD0_LINK_SUPPORT) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(1);
- }
- if (bmval0 & FATTR4_WORD0_SYMLINK_SUPPORT) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(1);
- }
- if (bmval0 & FATTR4_WORD0_NAMED_ATTR) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(0);
- }
- if (bmval0 & FATTR4_WORD0_FSID) {
- p = xdr_reserve_space(xdr, 16);
- if (!p)
- goto out_resource;
- if (exp->ex_fslocs.migrated) {
- p = xdr_encode_hyper(p, NFS4_REFERRAL_FSID_MAJOR);
- p = xdr_encode_hyper(p, NFS4_REFERRAL_FSID_MINOR);
- } else switch(fsid_source(fhp)) {
- case FSIDSOURCE_FSID:
- p = xdr_encode_hyper(p, (u64)exp->ex_fsid);
- p = xdr_encode_hyper(p, (u64)0);
- break;
- case FSIDSOURCE_DEV:
- *p++ = cpu_to_be32(0);
- *p++ = cpu_to_be32(MAJOR(stat.dev));
- *p++ = cpu_to_be32(0);
- *p++ = cpu_to_be32(MINOR(stat.dev));
- break;
- case FSIDSOURCE_UUID:
- p = xdr_encode_opaque_fixed(p, exp->ex_uuid,
- EX_UUID_LEN);
- break;
- }
- }
- if (bmval0 & FATTR4_WORD0_UNIQUE_HANDLES) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(0);
- }
- if (bmval0 & FATTR4_WORD0_LEASE_TIME) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(nn->nfsd4_lease);
- }
- if (bmval0 & FATTR4_WORD0_RDATTR_ERROR) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(rdattr_err);
- }
- if (bmval0 & FATTR4_WORD0_ACL) {
- struct nfs4_ace *ace;
-
- if (acl == NULL) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
-
- *p++ = cpu_to_be32(0);
- goto out_acl;
- }
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(acl->naces);
-
- for (ace = acl->aces; ace < acl->aces + acl->naces; ace++) {
- p = xdr_reserve_space(xdr, 4*3);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(ace->type);
- *p++ = cpu_to_be32(ace->flag);
- *p++ = cpu_to_be32(ace->access_mask &
- NFS4_ACE_MASK_ALL);
- status = nfsd4_encode_aclname(xdr, rqstp, ace);
- if (status)
- goto out;
- }
- }
-out_acl:
- if (bmval0 & FATTR4_WORD0_ACLSUPPORT) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(IS_POSIXACL(dentry->d_inode) ?
- ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL : 0);
- }
- if (bmval0 & FATTR4_WORD0_CANSETTIME) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(1);
- }
- if (bmval0 & FATTR4_WORD0_CASE_INSENSITIVE) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(0);
- }
- if (bmval0 & FATTR4_WORD0_CASE_PRESERVING) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(1);
- }
- if (bmval0 & FATTR4_WORD0_CHOWN_RESTRICTED) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(1);
- }
- if (bmval0 & FATTR4_WORD0_FILEHANDLE) {
- p = xdr_reserve_space(xdr, fhp->fh_handle.fh_size + 4);
- if (!p)
- goto out_resource;
- p = xdr_encode_opaque(p, &fhp->fh_handle.fh_raw,
- fhp->fh_handle.fh_size);
- }
- if (bmval0 & FATTR4_WORD0_FILEID) {
- p = xdr_reserve_space(xdr, 8);
- if (!p)
- goto out_resource;
- p = xdr_encode_hyper(p, stat.ino);
- }
- if (bmval0 & FATTR4_WORD0_FILES_AVAIL) {
- p = xdr_reserve_space(xdr, 8);
- if (!p)
- goto out_resource;
- p = xdr_encode_hyper(p, (u64) statfs.f_ffree);
- }
- if (bmval0 & FATTR4_WORD0_FILES_FREE) {
- p = xdr_reserve_space(xdr, 8);
- if (!p)
- goto out_resource;
- p = xdr_encode_hyper(p, (u64) statfs.f_ffree);
- }
- if (bmval0 & FATTR4_WORD0_FILES_TOTAL) {
- p = xdr_reserve_space(xdr, 8);
- if (!p)
- goto out_resource;
- p = xdr_encode_hyper(p, (u64) statfs.f_files);
- }
- if (bmval0 & FATTR4_WORD0_FS_LOCATIONS) {
- status = nfsd4_encode_fs_locations(xdr, rqstp, exp);
- if (status)
- goto out;
- }
- if (bmval0 & FATTR4_WORD0_HOMOGENEOUS) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(1);
- }
- if (bmval0 & FATTR4_WORD0_MAXFILESIZE) {
- p = xdr_reserve_space(xdr, 8);
- if (!p)
- goto out_resource;
- p = xdr_encode_hyper(p, exp->ex_path.mnt->mnt_sb->s_maxbytes);
- }
- if (bmval0 & FATTR4_WORD0_MAXLINK) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(255);
- }
- if (bmval0 & FATTR4_WORD0_MAXNAME) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(statfs.f_namelen);
- }
- if (bmval0 & FATTR4_WORD0_MAXREAD) {
- p = xdr_reserve_space(xdr, 8);
- if (!p)
- goto out_resource;
- p = xdr_encode_hyper(p, (u64) svc_max_payload(rqstp));
- }
- if (bmval0 & FATTR4_WORD0_MAXWRITE) {
- p = xdr_reserve_space(xdr, 8);
- if (!p)
- goto out_resource;
- p = xdr_encode_hyper(p, (u64) svc_max_payload(rqstp));
- }
- if (bmval1 & FATTR4_WORD1_MODE) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(stat.mode & S_IALLUGO);
- }
- if (bmval1 & FATTR4_WORD1_NO_TRUNC) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(1);
- }
- if (bmval1 & FATTR4_WORD1_NUMLINKS) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(stat.nlink);
- }
- if (bmval1 & FATTR4_WORD1_OWNER) {
- status = nfsd4_encode_user(xdr, rqstp, stat.uid);
- if (status)
- goto out;
- }
- if (bmval1 & FATTR4_WORD1_OWNER_GROUP) {
- status = nfsd4_encode_group(xdr, rqstp, stat.gid);
- if (status)
- goto out;
- }
- if (bmval1 & FATTR4_WORD1_RAWDEV) {
- p = xdr_reserve_space(xdr, 8);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32((u32) MAJOR(stat.rdev));
- *p++ = cpu_to_be32((u32) MINOR(stat.rdev));
- }
- if (bmval1 & FATTR4_WORD1_SPACE_AVAIL) {
- p = xdr_reserve_space(xdr, 8);
- if (!p)
- goto out_resource;
- dummy64 = (u64)statfs.f_bavail * (u64)statfs.f_bsize;
- p = xdr_encode_hyper(p, dummy64);
- }
- if (bmval1 & FATTR4_WORD1_SPACE_FREE) {
- p = xdr_reserve_space(xdr, 8);
- if (!p)
- goto out_resource;
- dummy64 = (u64)statfs.f_bfree * (u64)statfs.f_bsize;
- p = xdr_encode_hyper(p, dummy64);
- }
- if (bmval1 & FATTR4_WORD1_SPACE_TOTAL) {
- p = xdr_reserve_space(xdr, 8);
- if (!p)
- goto out_resource;
- dummy64 = (u64)statfs.f_blocks * (u64)statfs.f_bsize;
- p = xdr_encode_hyper(p, dummy64);
- }
- if (bmval1 & FATTR4_WORD1_SPACE_USED) {
- p = xdr_reserve_space(xdr, 8);
- if (!p)
- goto out_resource;
- dummy64 = (u64)stat.blocks << 9;
- p = xdr_encode_hyper(p, dummy64);
- }
- if (bmval1 & FATTR4_WORD1_TIME_ACCESS) {
- status = nfsd4_encode_nfstime4(xdr, &stat.atime);
- if (status)
- goto out;
- }
- if (bmval1 & FATTR4_WORD1_TIME_CREATE) {
- status = nfsd4_encode_nfstime4(xdr, &stat.btime);
- if (status)
- goto out;
- }
- if (bmval1 & FATTR4_WORD1_TIME_DELTA) {
- p = xdr_reserve_space(xdr, 12);
- if (!p)
- goto out_resource;
- p = encode_time_delta(p, d_inode(dentry));
- }
- if (bmval1 & FATTR4_WORD1_TIME_METADATA) {
- status = nfsd4_encode_nfstime4(xdr, &stat.ctime);
- if (status)
- goto out;
- }
- if (bmval1 & FATTR4_WORD1_TIME_MODIFY) {
- status = nfsd4_encode_nfstime4(xdr, &stat.mtime);
- if (status)
- goto out;
- }
- if (bmval1 & FATTR4_WORD1_MOUNTED_ON_FILEID) {
- u64 ino = stat.ino;
-
- p = xdr_reserve_space(xdr, 8);
- if (!p)
- goto out_resource;
- /*
- * Get ino of mountpoint in parent filesystem, if not ignoring
- * crossmount and this is the root of a cross-mounted
- * filesystem.
- */
- if (ignore_crossmnt == 0 &&
- dentry == exp->ex_path.mnt->mnt_root) {
- err = nfsd4_get_mounted_on_ino(exp, &ino);
- if (err)
- goto out_nfserr;
- }
- p = xdr_encode_hyper(p, ino);
- }
-#ifdef CONFIG_NFSD_PNFS
- if (bmval1 & FATTR4_WORD1_FS_LAYOUT_TYPES) {
- status = nfsd4_encode_layout_types(xdr, exp->ex_layout_types);
- if (status)
- goto out;
- }
-
- if (bmval2 & FATTR4_WORD2_LAYOUT_TYPES) {
- status = nfsd4_encode_layout_types(xdr, exp->ex_layout_types);
- if (status)
- goto out;
- }
-
- if (bmval2 & FATTR4_WORD2_LAYOUT_BLKSIZE) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- *p++ = cpu_to_be32(stat.blksize);
- }
-#endif /* CONFIG_NFSD_PNFS */
- if (bmval2 & FATTR4_WORD2_SUPPATTR_EXCLCREAT) {
- u32 supp[3];
-
- memcpy(supp, nfsd_suppattrs[minorversion], sizeof(supp));
- supp[0] &= NFSD_SUPPATTR_EXCLCREAT_WORD0;
- supp[1] &= NFSD_SUPPATTR_EXCLCREAT_WORD1;
- supp[2] &= NFSD_SUPPATTR_EXCLCREAT_WORD2;
-
- status = nfsd4_encode_bitmap(xdr, supp[0], supp[1], supp[2]);
- if (status)
- goto out;
- }
-
-#ifdef CONFIG_NFSD_V4_SECURITY_LABEL
- if (bmval2 & FATTR4_WORD2_SECURITY_LABEL) {
- status = nfsd4_encode_security_label(xdr, rqstp, context,
- contextlen);
- if (status)
- goto out;
- }
-#endif
-
- if (bmval2 & FATTR4_WORD2_XATTR_SUPPORT) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- goto out_resource;
- err = xattr_supports_user_prefix(d_inode(dentry));
- *p++ = cpu_to_be32(err == 0);
- }
-
*attrlen_p = cpu_to_be32(xdr->buf->len - attrlen_offset - XDR_UNIT);
status = nfs_ok;
out:
#ifdef CONFIG_NFSD_V4_SECURITY_LABEL
- if (context)
- security_release_secctx(context, contextlen);
+ if (args.context)
+ security_release_secctx(args.context, args.contextlen);
#endif /* CONFIG_NFSD_V4_SECURITY_LABEL */
- kfree(acl);
+ kfree(args.acl);
if (tempfh) {
fh_put(tempfh);
kfree(tempfh);
@@ -3514,12 +3668,28 @@ __be32 nfsd4_encode_fattr_to_buf(__be32 **p, int words,
__be32 ret;
svcxdr_init_encode_from_buffer(&xdr, &dummy, *p, words << 2);
- ret = nfsd4_encode_fattr(&xdr, fhp, exp, dentry, bmval, rqstp,
- ignore_crossmnt);
+ ret = nfsd4_encode_fattr4(rqstp, &xdr, fhp, exp, dentry, bmval,
+ ignore_crossmnt);
*p = xdr.p;
return ret;
}
+/*
+ * The buffer space for this field was reserved during a previous
+ * call to nfsd4_encode_entry4().
+ */
+static void nfsd4_encode_entry4_nfs_cookie4(const struct nfsd4_readdir *readdir,
+ u64 offset)
+{
+ __be64 cookie = cpu_to_be64(offset);
+ struct xdr_stream *xdr = readdir->xdr;
+
+ if (!readdir->cookie_offset)
+ return;
+ write_bytes_to_xdr_buf(xdr->buf, readdir->cookie_offset, &cookie,
+ sizeof(cookie));
+}
+
static inline int attributes_need_mount(u32 *bmval)
{
if (bmval[0] & ~(FATTR4_WORD0_RDATTR_ERROR | FATTR4_WORD0_LEASE_TIME))
@@ -3530,8 +3700,8 @@ static inline int attributes_need_mount(u32 *bmval)
}
static __be32
-nfsd4_encode_dirent_fattr(struct xdr_stream *xdr, struct nfsd4_readdir *cd,
- const char *name, int namlen)
+nfsd4_encode_entry4_fattr(struct nfsd4_readdir *cd, const char *name,
+ int namlen)
{
struct svc_export *exp = cd->rd_fhp->fh_export;
struct dentry *dentry;
@@ -3574,33 +3744,34 @@ nfsd4_encode_dirent_fattr(struct xdr_stream *xdr, struct nfsd4_readdir *cd,
}
out_encode:
- nfserr = nfsd4_encode_fattr(xdr, NULL, exp, dentry, cd->rd_bmval,
- cd->rd_rqstp, ignore_crossmnt);
+ nfserr = nfsd4_encode_fattr4(cd->rd_rqstp, cd->xdr, NULL, exp, dentry,
+ cd->rd_bmval, ignore_crossmnt);
out_put:
dput(dentry);
exp_put(exp);
return nfserr;
}
-static __be32 *
-nfsd4_encode_rdattr_error(struct xdr_stream *xdr, __be32 nfserr)
+static __be32
+nfsd4_encode_entry4_rdattr_error(struct xdr_stream *xdr, __be32 nfserr)
{
- __be32 *p;
-
- p = xdr_reserve_space(xdr, 20);
- if (!p)
- return NULL;
- *p++ = htonl(2);
- *p++ = htonl(FATTR4_WORD0_RDATTR_ERROR); /* bmval0 */
- *p++ = htonl(0); /* bmval1 */
+ __be32 status;
- *p++ = htonl(4); /* attribute length */
- *p++ = nfserr; /* no htonl */
- return p;
+ /* attrmask */
+ status = nfsd4_encode_bitmap4(xdr, FATTR4_WORD0_RDATTR_ERROR, 0, 0);
+ if (status != nfs_ok)
+ return status;
+ /* attr_vals */
+ if (xdr_stream_encode_u32(xdr, XDR_UNIT) != XDR_UNIT)
+ return nfserr_resource;
+ /* rdattr_error */
+ if (xdr_stream_encode_be32(xdr, nfserr) != XDR_UNIT)
+ return nfserr_resource;
+ return nfs_ok;
}
static int
-nfsd4_encode_dirent(void *ccdv, const char *name, int namlen,
+nfsd4_encode_entry4(void *ccdv, const char *name, int namlen,
loff_t offset, u64 ino, unsigned int d_type)
{
struct readdir_cd *ccd = ccdv;
@@ -3611,8 +3782,6 @@ nfsd4_encode_dirent(void *ccdv, const char *name, int namlen,
u32 name_and_cookie;
int entry_bytes;
__be32 nfserr = nfserr_toosmall;
- __be64 wire_offset;
- __be32 *p;
/* In nfsv4, "." and ".." never make it onto the wire.. */
if (name && isdotent(name, namlen)) {
@@ -3620,24 +3789,19 @@ nfsd4_encode_dirent(void *ccdv, const char *name, int namlen,
return 0;
}
- if (cd->cookie_offset) {
- wire_offset = cpu_to_be64(offset);
- write_bytes_to_xdr_buf(xdr->buf, cd->cookie_offset,
- &wire_offset, 8);
- }
+ /* Encode the previous entry's cookie value */
+ nfsd4_encode_entry4_nfs_cookie4(cd, offset);
- p = xdr_reserve_space(xdr, 4);
- if (!p)
+ if (xdr_stream_encode_item_present(xdr) != XDR_UNIT)
goto fail;
- *p++ = xdr_one; /* mark entry present */
+
+ /* Reserve send buffer space for this entry's cookie value. */
cookie_offset = xdr->buf->len;
- p = xdr_reserve_space(xdr, 3*4 + namlen);
- if (!p)
+ if (nfsd4_encode_nfs_cookie4(xdr, OFFSET_MAX) != nfs_ok)
goto fail;
- p = xdr_encode_hyper(p, OFFSET_MAX); /* offset of next entry */
- p = xdr_encode_array(p, name, namlen); /* name length & name */
-
- nfserr = nfsd4_encode_dirent_fattr(xdr, cd, name, namlen);
+ if (nfsd4_encode_component4(xdr, name, namlen) != nfs_ok)
+ goto fail;
+ nfserr = nfsd4_encode_entry4_fattr(cd, name, namlen);
switch (nfserr) {
case nfs_ok:
break;
@@ -3668,8 +3832,7 @@ nfsd4_encode_dirent(void *ccdv, const char *name, int namlen,
*/
if (!(cd->rd_bmval[0] & FATTR4_WORD0_RDATTR_ERROR))
goto fail;
- p = nfsd4_encode_rdattr_error(xdr, nfserr);
- if (p == NULL) {
+ if (nfsd4_encode_entry4_rdattr_error(xdr, nfserr)) {
nfserr = nfserr_toosmall;
goto fail;
}
@@ -3727,18 +3890,26 @@ nfsd4_encode_clientid4(struct xdr_stream *xdr, const clientid_t *clientid)
return nfs_ok;
}
+/* This is a frequently-encoded item; open-coded for speed */
static __be32
-nfsd4_encode_stateid(struct xdr_stream *xdr, stateid_t *sid)
+nfsd4_encode_stateid4(struct xdr_stream *xdr, const stateid_t *sid)
{
__be32 *p;
- p = xdr_reserve_space(xdr, sizeof(stateid_t));
+ p = xdr_reserve_space(xdr, NFS4_STATEID_SIZE);
if (!p)
return nfserr_resource;
*p++ = cpu_to_be32(sid->si_generation);
- p = xdr_encode_opaque_fixed(p, &sid->si_opaque,
- sizeof(stateid_opaque_t));
- return 0;
+ memcpy(p, &sid->si_opaque, sizeof(sid->si_opaque));
+ return nfs_ok;
+}
+
+static __be32
+nfsd4_encode_sessionid4(struct xdr_stream *xdr,
+ const struct nfs4_sessionid *sessionid)
+{
+ return nfsd4_encode_opaque_fixed(xdr, sessionid->data,
+ NFS4_MAX_SESSIONID_LEN);
}
static __be32
@@ -3747,14 +3918,14 @@ nfsd4_encode_access(struct nfsd4_compoundres *resp, __be32 nfserr,
{
struct nfsd4_access *access = &u->access;
struct xdr_stream *xdr = resp->xdr;
- __be32 *p;
+ __be32 status;
- p = xdr_reserve_space(xdr, 8);
- if (!p)
- return nfserr_resource;
- *p++ = cpu_to_be32(access->ac_supported);
- *p++ = cpu_to_be32(access->ac_resp_access);
- return 0;
+ /* supported */
+ status = nfsd4_encode_uint32_t(xdr, access->ac_supported);
+ if (status != nfs_ok)
+ return status;
+ /* access */
+ return nfsd4_encode_uint32_t(xdr, access->ac_resp_access);
}
static __be32 nfsd4_encode_bind_conn_to_session(struct nfsd4_compoundres *resp, __be32 nfserr,
@@ -3762,17 +3933,16 @@ static __be32 nfsd4_encode_bind_conn_to_session(struct nfsd4_compoundres *resp,
{
struct nfsd4_bind_conn_to_session *bcts = &u->bind_conn_to_session;
struct xdr_stream *xdr = resp->xdr;
- __be32 *p;
- p = xdr_reserve_space(xdr, NFS4_MAX_SESSIONID_LEN + 8);
- if (!p)
+ /* bctsr_sessid */
+ nfserr = nfsd4_encode_sessionid4(xdr, &bcts->sessionid);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* bctsr_dir */
+ if (xdr_stream_encode_u32(xdr, bcts->dir) != XDR_UNIT)
return nfserr_resource;
- p = xdr_encode_opaque_fixed(p, bcts->sessionid.data,
- NFS4_MAX_SESSIONID_LEN);
- *p++ = cpu_to_be32(bcts->dir);
- /* Upshifting from TCP to RDMA is not supported */
- *p++ = cpu_to_be32(0);
- return 0;
+ /* bctsr_use_conn_in_rdma_mode */
+ return nfsd4_encode_bool(xdr, false);
}
static __be32
@@ -3782,7 +3952,8 @@ nfsd4_encode_close(struct nfsd4_compoundres *resp, __be32 nfserr,
struct nfsd4_close *close = &u->close;
struct xdr_stream *xdr = resp->xdr;
- return nfsd4_encode_stateid(xdr, &close->cl_stateid);
+ /* open_stateid */
+ return nfsd4_encode_stateid4(xdr, &close->cl_stateid);
}
@@ -3802,11 +3973,13 @@ nfsd4_encode_create(struct nfsd4_compoundres *resp, __be32 nfserr,
struct nfsd4_create *create = &u->create;
struct xdr_stream *xdr = resp->xdr;
+ /* cinfo */
nfserr = nfsd4_encode_change_info4(xdr, &create->cr_cinfo);
if (nfserr)
return nfserr;
- return nfsd4_encode_bitmap(xdr, create->cr_bmval[0],
- create->cr_bmval[1], create->cr_bmval[2]);
+ /* attrset */
+ return nfsd4_encode_bitmap4(xdr, create->cr_bmval[0],
+ create->cr_bmval[1], create->cr_bmval[2]);
}
static __be32
@@ -3817,65 +3990,56 @@ nfsd4_encode_getattr(struct nfsd4_compoundres *resp, __be32 nfserr,
struct svc_fh *fhp = getattr->ga_fhp;
struct xdr_stream *xdr = resp->xdr;
- return nfsd4_encode_fattr(xdr, fhp, fhp->fh_export, fhp->fh_dentry,
- getattr->ga_bmval, resp->rqstp, 0);
+ /* obj_attributes */
+ return nfsd4_encode_fattr4(resp->rqstp, xdr, fhp, fhp->fh_export,
+ fhp->fh_dentry, getattr->ga_bmval, 0);
}
static __be32
nfsd4_encode_getfh(struct nfsd4_compoundres *resp, __be32 nfserr,
union nfsd4_op_u *u)
{
- struct svc_fh **fhpp = &u->getfh;
struct xdr_stream *xdr = resp->xdr;
- struct svc_fh *fhp = *fhpp;
- unsigned int len;
- __be32 *p;
+ struct svc_fh *fhp = u->getfh;
- len = fhp->fh_handle.fh_size;
- p = xdr_reserve_space(xdr, len + 4);
- if (!p)
- return nfserr_resource;
- p = xdr_encode_opaque(p, &fhp->fh_handle.fh_raw, len);
- return 0;
+ /* object */
+ return nfsd4_encode_nfs_fh4(xdr, &fhp->fh_handle);
}
-/*
-* Including all fields other than the name, a LOCK4denied structure requires
-* 8(clientid) + 4(namelen) + 8(offset) + 8(length) + 4(type) = 32 bytes.
-*/
static __be32
-nfsd4_encode_lock_denied(struct xdr_stream *xdr, struct nfsd4_lock_denied *ld)
+nfsd4_encode_lock_owner4(struct xdr_stream *xdr, const clientid_t *clientid,
+ const struct xdr_netobj *owner)
{
- struct xdr_netobj *conf = &ld->ld_owner;
- __be32 *p;
+ __be32 status;
-again:
- p = xdr_reserve_space(xdr, 32 + XDR_LEN(conf->len));
- if (!p) {
- /*
- * Don't fail to return the result just because we can't
- * return the conflicting open:
- */
- if (conf->len) {
- kfree(conf->data);
- conf->len = 0;
- conf->data = NULL;
- goto again;
- }
+ /* clientid */
+ status = nfsd4_encode_clientid4(xdr, clientid);
+ if (status != nfs_ok)
+ return status;
+ /* owner */
+ return nfsd4_encode_opaque(xdr, owner->data, owner->len);
+}
+
+static __be32
+nfsd4_encode_lock4denied(struct xdr_stream *xdr,
+ const struct nfsd4_lock_denied *ld)
+{
+ __be32 status;
+
+ /* offset */
+ status = nfsd4_encode_offset4(xdr, ld->ld_start);
+ if (status != nfs_ok)
+ return status;
+ /* length */
+ status = nfsd4_encode_length4(xdr, ld->ld_length);
+ if (status != nfs_ok)
+ return status;
+ /* locktype */
+ if (xdr_stream_encode_u32(xdr, ld->ld_type) != XDR_UNIT)
return nfserr_resource;
- }
- p = xdr_encode_hyper(p, ld->ld_start);
- p = xdr_encode_hyper(p, ld->ld_length);
- *p++ = cpu_to_be32(ld->ld_type);
- if (conf->len) {
- p = xdr_encode_opaque_fixed(p, &ld->ld_clientid, 8);
- p = xdr_encode_opaque(p, conf->data, conf->len);
- kfree(conf->data);
- } else { /* non - nfsv4 lock in conflict, no clientid nor owner */
- p = xdr_encode_hyper(p, (u64)0); /* clientid */
- *p++ = cpu_to_be32(0); /* length of owner name */
- }
- return nfserr_denied;
+ /* owner */
+ return nfsd4_encode_lock_owner4(xdr, &ld->ld_clientid,
+ &ld->ld_owner);
}
static __be32
@@ -3884,13 +4048,21 @@ nfsd4_encode_lock(struct nfsd4_compoundres *resp, __be32 nfserr,
{
struct nfsd4_lock *lock = &u->lock;
struct xdr_stream *xdr = resp->xdr;
+ __be32 status;
- if (!nfserr)
- nfserr = nfsd4_encode_stateid(xdr, &lock->lk_resp_stateid);
- else if (nfserr == nfserr_denied)
- nfserr = nfsd4_encode_lock_denied(xdr, &lock->lk_denied);
-
- return nfserr;
+ switch (nfserr) {
+ case nfs_ok:
+ /* resok4 */
+ status = nfsd4_encode_stateid4(xdr, &lock->lk_resp_stateid);
+ break;
+ case nfserr_denied:
+ /* denied */
+ status = nfsd4_encode_lock4denied(xdr, &lock->lk_denied);
+ break;
+ default:
+ return nfserr;
+ }
+ return status != nfs_ok ? status : nfserr;
}
static __be32
@@ -3899,9 +4071,14 @@ nfsd4_encode_lockt(struct nfsd4_compoundres *resp, __be32 nfserr,
{
struct nfsd4_lockt *lockt = &u->lockt;
struct xdr_stream *xdr = resp->xdr;
+ __be32 status;
- if (nfserr == nfserr_denied)
- nfsd4_encode_lock_denied(xdr, &lockt->lt_denied);
+ if (nfserr == nfserr_denied) {
+ /* denied */
+ status = nfsd4_encode_lock4denied(xdr, &lockt->lt_denied);
+ if (status != nfs_ok)
+ return status;
+ }
return nfserr;
}
@@ -3912,7 +4089,8 @@ nfsd4_encode_locku(struct nfsd4_compoundres *resp, __be32 nfserr,
struct nfsd4_locku *locku = &u->locku;
struct xdr_stream *xdr = resp->xdr;
- return nfsd4_encode_stateid(xdr, &locku->lu_stateid);
+ /* lock_stateid */
+ return nfsd4_encode_stateid4(xdr, &locku->lu_stateid);
}
@@ -3926,104 +4104,159 @@ nfsd4_encode_link(struct nfsd4_compoundres *resp, __be32 nfserr,
return nfsd4_encode_change_info4(xdr, &link->li_cinfo);
}
+/*
+ * This implementation does not yet support returning an ACE in an
+ * OPEN that offers a delegation.
+ */
+static __be32
+nfsd4_encode_open_nfsace4(struct xdr_stream *xdr)
+{
+ __be32 status;
+
+ /* type */
+ status = nfsd4_encode_acetype4(xdr, NFS4_ACE_ACCESS_ALLOWED_ACE_TYPE);
+ if (status != nfs_ok)
+ return nfserr_resource;
+ /* flag */
+ status = nfsd4_encode_aceflag4(xdr, 0);
+ if (status != nfs_ok)
+ return nfserr_resource;
+ /* access mask */
+ status = nfsd4_encode_acemask4(xdr, 0);
+ if (status != nfs_ok)
+ return nfserr_resource;
+ /* who - empty for now */
+ if (xdr_stream_encode_u32(xdr, 0) != XDR_UNIT)
+ return nfserr_resource;
+ return nfs_ok;
+}
static __be32
-nfsd4_encode_open(struct nfsd4_compoundres *resp, __be32 nfserr,
- union nfsd4_op_u *u)
+nfsd4_encode_open_read_delegation4(struct xdr_stream *xdr, struct nfsd4_open *open)
{
- struct nfsd4_open *open = &u->open;
- struct xdr_stream *xdr = resp->xdr;
- __be32 *p;
+ __be32 status;
- nfserr = nfsd4_encode_stateid(xdr, &open->op_stateid);
- if (nfserr)
- return nfserr;
- nfserr = nfsd4_encode_change_info4(xdr, &open->op_cinfo);
- if (nfserr)
- return nfserr;
- if (xdr_stream_encode_u32(xdr, open->op_rflags) < 0)
+ /* stateid */
+ status = nfsd4_encode_stateid4(xdr, &open->op_delegate_stateid);
+ if (status != nfs_ok)
+ return status;
+ /* recall */
+ status = nfsd4_encode_bool(xdr, open->op_recall);
+ if (status != nfs_ok)
+ return status;
+ /* permissions */
+ return nfsd4_encode_open_nfsace4(xdr);
+}
+
+static __be32
+nfsd4_encode_nfs_space_limit4(struct xdr_stream *xdr, u64 filesize)
+{
+ /* limitby */
+ if (xdr_stream_encode_u32(xdr, NFS4_LIMIT_SIZE) != XDR_UNIT)
return nfserr_resource;
+ /* filesize */
+ return nfsd4_encode_uint64_t(xdr, filesize);
+}
- nfserr = nfsd4_encode_bitmap(xdr, open->op_bmval[0], open->op_bmval[1],
- open->op_bmval[2]);
- if (nfserr)
- return nfserr;
+static __be32
+nfsd4_encode_open_write_delegation4(struct xdr_stream *xdr,
+ struct nfsd4_open *open)
+{
+ __be32 status;
- p = xdr_reserve_space(xdr, 4);
- if (!p)
+ /* stateid */
+ status = nfsd4_encode_stateid4(xdr, &open->op_delegate_stateid);
+ if (status != nfs_ok)
+ return status;
+ /* recall */
+ status = nfsd4_encode_bool(xdr, open->op_recall);
+ if (status != nfs_ok)
+ return status;
+ /* space_limit */
+ status = nfsd4_encode_nfs_space_limit4(xdr, 0);
+ if (status != nfs_ok)
+ return status;
+ return nfsd4_encode_open_nfsace4(xdr);
+}
+
+static __be32
+nfsd4_encode_open_none_delegation4(struct xdr_stream *xdr,
+ struct nfsd4_open *open)
+{
+ __be32 status = nfs_ok;
+
+ /* ond_why */
+ if (xdr_stream_encode_u32(xdr, open->op_why_no_deleg) != XDR_UNIT)
return nfserr_resource;
+ switch (open->op_why_no_deleg) {
+ case WND4_CONTENTION:
+ /* ond_server_will_push_deleg */
+ status = nfsd4_encode_bool(xdr, false);
+ break;
+ case WND4_RESOURCE:
+ /* ond_server_will_signal_avail */
+ status = nfsd4_encode_bool(xdr, false);
+ }
+ return status;
+}
+
+static __be32
+nfsd4_encode_open_delegation4(struct xdr_stream *xdr, struct nfsd4_open *open)
+{
+ __be32 status;
- *p++ = cpu_to_be32(open->op_delegate_type);
+ /* delegation_type */
+ if (xdr_stream_encode_u32(xdr, open->op_delegate_type) != XDR_UNIT)
+ return nfserr_resource;
switch (open->op_delegate_type) {
case NFS4_OPEN_DELEGATE_NONE:
+ status = nfs_ok;
break;
case NFS4_OPEN_DELEGATE_READ:
- nfserr = nfsd4_encode_stateid(xdr, &open->op_delegate_stateid);
- if (nfserr)
- return nfserr;
- p = xdr_reserve_space(xdr, 20);
- if (!p)
- return nfserr_resource;
- *p++ = cpu_to_be32(open->op_recall);
-
- /*
- * TODO: ACE's in delegations
- */
- *p++ = cpu_to_be32(NFS4_ACE_ACCESS_ALLOWED_ACE_TYPE);
- *p++ = cpu_to_be32(0);
- *p++ = cpu_to_be32(0);
- *p++ = cpu_to_be32(0); /* XXX: is NULL principal ok? */
+ /* read */
+ status = nfsd4_encode_open_read_delegation4(xdr, open);
break;
case NFS4_OPEN_DELEGATE_WRITE:
- nfserr = nfsd4_encode_stateid(xdr, &open->op_delegate_stateid);
- if (nfserr)
- return nfserr;
-
- p = xdr_reserve_space(xdr, XDR_UNIT * 8);
- if (!p)
- return nfserr_resource;
- *p++ = cpu_to_be32(open->op_recall);
-
- /*
- * Always flush on close
- *
- * TODO: space_limit's in delegations
- */
- *p++ = cpu_to_be32(NFS4_LIMIT_SIZE);
- *p++ = xdr_zero;
- *p++ = xdr_zero;
-
- /*
- * TODO: ACE's in delegations
- */
- *p++ = cpu_to_be32(NFS4_ACE_ACCESS_ALLOWED_ACE_TYPE);
- *p++ = cpu_to_be32(0);
- *p++ = cpu_to_be32(0);
- *p++ = cpu_to_be32(0); /* XXX: is NULL principal ok? */
+ /* write */
+ status = nfsd4_encode_open_write_delegation4(xdr, open);
break;
- case NFS4_OPEN_DELEGATE_NONE_EXT: /* 4.1 */
- switch (open->op_why_no_deleg) {
- case WND4_CONTENTION:
- case WND4_RESOURCE:
- p = xdr_reserve_space(xdr, 8);
- if (!p)
- return nfserr_resource;
- *p++ = cpu_to_be32(open->op_why_no_deleg);
- /* deleg signaling not supported yet: */
- *p++ = cpu_to_be32(0);
- break;
- default:
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- return nfserr_resource;
- *p++ = cpu_to_be32(open->op_why_no_deleg);
- }
+ case NFS4_OPEN_DELEGATE_NONE_EXT:
+ /* od_whynone */
+ status = nfsd4_encode_open_none_delegation4(xdr, open);
break;
default:
- BUG();
+ status = nfserr_serverfault;
}
- /* XXX save filehandle here */
- return 0;
+
+ return status;
+}
+
+static __be32
+nfsd4_encode_open(struct nfsd4_compoundres *resp, __be32 nfserr,
+ union nfsd4_op_u *u)
+{
+ struct nfsd4_open *open = &u->open;
+ struct xdr_stream *xdr = resp->xdr;
+
+ /* stateid */
+ nfserr = nfsd4_encode_stateid4(xdr, &open->op_stateid);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* cinfo */
+ nfserr = nfsd4_encode_change_info4(xdr, &open->op_cinfo);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* rflags */
+ nfserr = nfsd4_encode_uint32_t(xdr, open->op_rflags);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* attrset */
+ nfserr = nfsd4_encode_bitmap4(xdr, open->op_bmval[0],
+ open->op_bmval[1], open->op_bmval[2]);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* delegation */
+ return nfsd4_encode_open_delegation4(xdr, open);
}
static __be32
@@ -4033,7 +4266,8 @@ nfsd4_encode_open_confirm(struct nfsd4_compoundres *resp, __be32 nfserr,
struct nfsd4_open_confirm *oc = &u->open_confirm;
struct xdr_stream *xdr = resp->xdr;
- return nfsd4_encode_stateid(xdr, &oc->oc_resp_stateid);
+ /* open_stateid */
+ return nfsd4_encode_stateid4(xdr, &oc->oc_resp_stateid);
}
static __be32
@@ -4043,7 +4277,8 @@ nfsd4_encode_open_downgrade(struct nfsd4_compoundres *resp, __be32 nfserr,
struct nfsd4_open_downgrade *od = &u->open_downgrade;
struct xdr_stream *xdr = resp->xdr;
- return nfsd4_encode_stateid(xdr, &od->od_stateid);
+ /* open_stateid */
+ return nfsd4_encode_stateid4(xdr, &od->od_stateid);
}
/*
@@ -4227,90 +4462,83 @@ out_err:
return nfserr;
}
-static __be32
-nfsd4_encode_readdir(struct nfsd4_compoundres *resp, __be32 nfserr,
- union nfsd4_op_u *u)
+static __be32 nfsd4_encode_dirlist4(struct xdr_stream *xdr,
+ struct nfsd4_readdir *readdir,
+ u32 max_payload)
{
- struct nfsd4_readdir *readdir = &u->readdir;
- int maxcount;
- int bytes_left;
+ int bytes_left, maxcount, starting_len = xdr->buf->len;
loff_t offset;
- __be64 wire_offset;
- struct xdr_stream *xdr = resp->xdr;
- int starting_len = xdr->buf->len;
- __be32 *p;
-
- nfserr = nfsd4_encode_verifier4(xdr, &readdir->rd_verf);
- if (nfserr != nfs_ok)
- return nfserr;
+ __be32 status;
/*
* Number of bytes left for directory entries allowing for the
- * final 8 bytes of the readdir and a following failed op:
+ * final 8 bytes of the readdir and a following failed op.
*/
- bytes_left = xdr->buf->buflen - xdr->buf->len
- - COMPOUND_ERR_SLACK_SPACE - 8;
- if (bytes_left < 0) {
- nfserr = nfserr_resource;
- goto err_no_verf;
- }
- maxcount = svc_max_payload(resp->rqstp);
- maxcount = min_t(u32, readdir->rd_maxcount, maxcount);
+ bytes_left = xdr->buf->buflen - xdr->buf->len -
+ COMPOUND_ERR_SLACK_SPACE - XDR_UNIT * 2;
+ if (bytes_left < 0)
+ return nfserr_resource;
+ maxcount = min_t(u32, readdir->rd_maxcount, max_payload);
+
/*
- * Note the rfc defines rd_maxcount as the size of the
- * READDIR4resok structure, which includes the verifier above
- * and the 8 bytes encoded at the end of this function:
+ * The RFC defines rd_maxcount as the size of the
+ * READDIR4resok structure, which includes the verifier
+ * and the 8 bytes encoded at the end of this function.
*/
- if (maxcount < 16) {
- nfserr = nfserr_toosmall;
- goto err_no_verf;
- }
- maxcount = min_t(int, maxcount-16, bytes_left);
+ if (maxcount < XDR_UNIT * 4)
+ return nfserr_toosmall;
+ maxcount = min_t(int, maxcount - XDR_UNIT * 4, bytes_left);
- /* RFC 3530 14.2.24 allows us to ignore dircount when it's 0: */
+ /* RFC 3530 14.2.24 allows us to ignore dircount when it's 0 */
if (!readdir->rd_dircount)
- readdir->rd_dircount = svc_max_payload(resp->rqstp);
+ readdir->rd_dircount = max_payload;
+ /* *entries */
readdir->xdr = xdr;
readdir->rd_maxcount = maxcount;
readdir->common.err = 0;
readdir->cookie_offset = 0;
-
offset = readdir->rd_cookie;
- nfserr = nfsd_readdir(readdir->rd_rqstp, readdir->rd_fhp,
- &offset,
- &readdir->common, nfsd4_encode_dirent);
- if (nfserr == nfs_ok &&
- readdir->common.err == nfserr_toosmall &&
- xdr->buf->len == starting_len + 8) {
- /* nothing encoded; which limit did we hit?: */
- if (maxcount - 16 < bytes_left)
- /* It was the fault of rd_maxcount: */
- nfserr = nfserr_toosmall;
- else
- /* We ran out of buffer space: */
- nfserr = nfserr_resource;
+ status = nfsd_readdir(readdir->rd_rqstp, readdir->rd_fhp, &offset,
+ &readdir->common, nfsd4_encode_entry4);
+ if (status)
+ return status;
+ if (readdir->common.err == nfserr_toosmall &&
+ xdr->buf->len == starting_len) {
+ /* No entries were encoded. Which limit did we hit? */
+ if (maxcount - XDR_UNIT * 4 < bytes_left)
+ /* It was the fault of rd_maxcount */
+ return nfserr_toosmall;
+ /* We ran out of buffer space */
+ return nfserr_resource;
}
- if (nfserr)
- goto err_no_verf;
+ /* Encode the final entry's cookie value */
+ nfsd4_encode_entry4_nfs_cookie4(readdir, offset);
+ /* No entries follow */
+ if (xdr_stream_encode_item_absent(xdr) != XDR_UNIT)
+ return nfserr_resource;
- if (readdir->cookie_offset) {
- wire_offset = cpu_to_be64(offset);
- write_bytes_to_xdr_buf(xdr->buf, readdir->cookie_offset,
- &wire_offset, 8);
- }
+ /* eof */
+ return nfsd4_encode_bool(xdr, readdir->common.err == nfserr_eof);
+}
- p = xdr_reserve_space(xdr, 8);
- if (!p) {
- WARN_ON_ONCE(1);
- goto err_no_verf;
- }
- *p++ = 0; /* no more entries */
- *p++ = htonl(readdir->common.err == nfserr_eof);
+static __be32
+nfsd4_encode_readdir(struct nfsd4_compoundres *resp, __be32 nfserr,
+ union nfsd4_op_u *u)
+{
+ struct nfsd4_readdir *readdir = &u->readdir;
+ struct xdr_stream *xdr = resp->xdr;
+ int starting_len = xdr->buf->len;
- return 0;
-err_no_verf:
- xdr_truncate_encode(xdr, starting_len);
+ /* cookieverf */
+ nfserr = nfsd4_encode_verifier4(xdr, &readdir->rd_verf);
+ if (nfserr != nfs_ok)
+ return nfserr;
+
+ /* reply */
+ nfserr = nfsd4_encode_dirlist4(xdr, readdir, svc_max_payload(resp->rqstp));
+ if (nfserr != nfs_ok)
+ xdr_truncate_encode(xdr, starting_len);
return nfserr;
}
@@ -4338,13 +4566,34 @@ nfsd4_encode_rename(struct nfsd4_compoundres *resp, __be32 nfserr,
}
static __be32
+nfsd4_encode_rpcsec_gss_info(struct xdr_stream *xdr,
+ struct rpcsec_gss_info *info)
+{
+ __be32 status;
+
+ /* oid */
+ if (xdr_stream_encode_opaque(xdr, info->oid.data, info->oid.len) < 0)
+ return nfserr_resource;
+ /* qop */
+ status = nfsd4_encode_qop4(xdr, info->qop);
+ if (status != nfs_ok)
+ return status;
+ /* service */
+ if (xdr_stream_encode_u32(xdr, info->service) != XDR_UNIT)
+ return nfserr_resource;
+
+ return nfs_ok;
+}
+
+static __be32
nfsd4_do_encode_secinfo(struct xdr_stream *xdr, struct svc_export *exp)
{
u32 i, nflavs, supported;
struct exp_flavor_info *flavs;
struct exp_flavor_info def_flavs[2];
- __be32 *p, *flavorsp;
static bool report = true;
+ __be32 *flavorsp;
+ __be32 status;
if (exp->ex_nflavors) {
flavs = exp->ex_flavors;
@@ -4367,10 +4616,9 @@ nfsd4_do_encode_secinfo(struct xdr_stream *xdr, struct svc_export *exp)
}
supported = 0;
- p = xdr_reserve_space(xdr, 4);
- if (!p)
+ flavorsp = xdr_reserve_space(xdr, XDR_UNIT);
+ if (!flavorsp)
return nfserr_resource;
- flavorsp = p++; /* to be backfilled later */
for (i = 0; i < nflavs; i++) {
rpc_authflavor_t pf = flavs[i].pseudoflavor;
@@ -4378,20 +4626,22 @@ nfsd4_do_encode_secinfo(struct xdr_stream *xdr, struct svc_export *exp)
if (rpcauth_get_gssinfo(pf, &info) == 0) {
supported++;
- p = xdr_reserve_space(xdr, 4 + 4 +
- XDR_LEN(info.oid.len) + 4 + 4);
- if (!p)
- return nfserr_resource;
- *p++ = cpu_to_be32(RPC_AUTH_GSS);
- p = xdr_encode_opaque(p, info.oid.data, info.oid.len);
- *p++ = cpu_to_be32(info.qop);
- *p++ = cpu_to_be32(info.service);
+
+ /* flavor */
+ status = nfsd4_encode_uint32_t(xdr, RPC_AUTH_GSS);
+ if (status != nfs_ok)
+ return status;
+ /* flavor_info */
+ status = nfsd4_encode_rpcsec_gss_info(xdr, &info);
+ if (status != nfs_ok)
+ return status;
} else if (pf < RPC_AUTH_MAXFLAVOR) {
supported++;
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- return nfserr_resource;
- *p++ = cpu_to_be32(pf);
+
+ /* flavor */
+ status = nfsd4_encode_uint32_t(xdr, pf);
+ if (status != nfs_ok)
+ return status;
} else {
if (report)
pr_warn("NFS: SECINFO: security flavor %u "
@@ -4401,7 +4651,7 @@ nfsd4_do_encode_secinfo(struct xdr_stream *xdr, struct svc_export *exp)
if (nflavs != supported)
report = false;
- *flavorsp = htonl(supported);
+ *flavorsp = cpu_to_be32(supported);
return 0;
}
@@ -4425,34 +4675,25 @@ nfsd4_encode_secinfo_no_name(struct nfsd4_compoundres *resp, __be32 nfserr,
return nfsd4_do_encode_secinfo(xdr, secinfo->sin_exp);
}
-/*
- * The SETATTR encode routine is special -- it always encodes a bitmap,
- * regardless of the error status.
- */
static __be32
nfsd4_encode_setattr(struct nfsd4_compoundres *resp, __be32 nfserr,
union nfsd4_op_u *u)
{
struct nfsd4_setattr *setattr = &u->setattr;
- struct xdr_stream *xdr = resp->xdr;
- __be32 *p;
+ __be32 status;
- p = xdr_reserve_space(xdr, 16);
- if (!p)
- return nfserr_resource;
- if (nfserr) {
- *p++ = cpu_to_be32(3);
- *p++ = cpu_to_be32(0);
- *p++ = cpu_to_be32(0);
- *p++ = cpu_to_be32(0);
- }
- else {
- *p++ = cpu_to_be32(3);
- *p++ = cpu_to_be32(setattr->sa_bmval[0]);
- *p++ = cpu_to_be32(setattr->sa_bmval[1]);
- *p++ = cpu_to_be32(setattr->sa_bmval[2]);
+ switch (nfserr) {
+ case nfs_ok:
+ /* attrsset */
+ status = nfsd4_encode_bitmap4(resp->xdr, setattr->sa_bmval[0],
+ setattr->sa_bmval[1],
+ setattr->sa_bmval[2]);
+ break;
+ default:
+ /* attrsset */
+ status = nfsd4_encode_bitmap4(resp->xdr, 0, 0, 0);
}
- return nfserr;
+ return status != nfs_ok ? status : nfserr;
}
static __be32
@@ -4488,86 +4729,148 @@ nfsd4_encode_write(struct nfsd4_compoundres *resp, __be32 nfserr,
union nfsd4_op_u *u)
{
struct nfsd4_write *write = &u->write;
+ struct xdr_stream *xdr = resp->xdr;
- if (xdr_stream_encode_u32(resp->xdr, write->wr_bytes_written) < 0)
- return nfserr_resource;
- if (xdr_stream_encode_u32(resp->xdr, write->wr_how_written) < 0)
+ /* count */
+ nfserr = nfsd4_encode_count4(xdr, write->wr_bytes_written);
+ if (nfserr)
+ return nfserr;
+ /* committed */
+ if (xdr_stream_encode_u32(xdr, write->wr_how_written) != XDR_UNIT)
return nfserr_resource;
- return nfsd4_encode_verifier4(resp->xdr, &write->wr_verifier);
+ /* writeverf */
+ return nfsd4_encode_verifier4(xdr, &write->wr_verifier);
}
static __be32
-nfsd4_encode_exchange_id(struct nfsd4_compoundres *resp, __be32 nfserr,
- union nfsd4_op_u *u)
+nfsd4_encode_state_protect_ops4(struct xdr_stream *xdr,
+ struct nfsd4_exchange_id *exid)
{
- struct nfsd4_exchange_id *exid = &u->exchange_id;
- struct xdr_stream *xdr = resp->xdr;
- __be32 *p;
- char *major_id;
- char *server_scope;
- int major_id_sz;
- int server_scope_sz;
- uint64_t minor_id = 0;
- struct nfsd_net *nn = net_generic(SVC_NET(resp->rqstp), nfsd_net_id);
+ __be32 status;
- major_id = nn->nfsd_name;
- major_id_sz = strlen(nn->nfsd_name);
- server_scope = nn->nfsd_name;
- server_scope_sz = strlen(nn->nfsd_name);
+ /* spo_must_enforce */
+ status = nfsd4_encode_bitmap4(xdr, exid->spo_must_enforce[0],
+ exid->spo_must_enforce[1],
+ exid->spo_must_enforce[2]);
+ if (status != nfs_ok)
+ return status;
+ /* spo_must_allow */
+ return nfsd4_encode_bitmap4(xdr, exid->spo_must_allow[0],
+ exid->spo_must_allow[1],
+ exid->spo_must_allow[2]);
+}
- if (nfsd4_encode_clientid4(xdr, &exid->clientid) != nfs_ok)
- return nfserr_resource;
- if (xdr_stream_encode_u32(xdr, exid->seqid) < 0)
- return nfserr_resource;
- if (xdr_stream_encode_u32(xdr, exid->flags) < 0)
- return nfserr_resource;
+static __be32
+nfsd4_encode_state_protect4_r(struct xdr_stream *xdr, struct nfsd4_exchange_id *exid)
+{
+ __be32 status;
- if (xdr_stream_encode_u32(xdr, exid->spa_how) < 0)
+ if (xdr_stream_encode_u32(xdr, exid->spa_how) != XDR_UNIT)
return nfserr_resource;
switch (exid->spa_how) {
case SP4_NONE:
+ status = nfs_ok;
break;
case SP4_MACH_CRED:
- /* spo_must_enforce bitmap: */
- nfserr = nfsd4_encode_bitmap(xdr,
- exid->spo_must_enforce[0],
- exid->spo_must_enforce[1],
- exid->spo_must_enforce[2]);
- if (nfserr)
- return nfserr;
- /* spo_must_allow bitmap: */
- nfserr = nfsd4_encode_bitmap(xdr,
- exid->spo_must_allow[0],
- exid->spo_must_allow[1],
- exid->spo_must_allow[2]);
- if (nfserr)
- return nfserr;
+ /* spr_mach_ops */
+ status = nfsd4_encode_state_protect_ops4(xdr, exid);
break;
default:
- WARN_ON_ONCE(1);
+ status = nfserr_serverfault;
}
+ return status;
+}
- p = xdr_reserve_space(xdr,
- 8 /* so_minor_id */ +
- 4 /* so_major_id.len */ +
- (XDR_QUADLEN(major_id_sz) * 4) +
- 4 /* eir_server_scope.len */ +
- (XDR_QUADLEN(server_scope_sz) * 4) +
- 4 /* eir_server_impl_id.count (0) */);
- if (!p)
+static __be32
+nfsd4_encode_server_owner4(struct xdr_stream *xdr, struct svc_rqst *rqstp)
+{
+ struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id);
+ __be32 status;
+
+ /* so_minor_id */
+ status = nfsd4_encode_uint64_t(xdr, 0);
+ if (status != nfs_ok)
+ return status;
+ /* so_major_id */
+ return nfsd4_encode_opaque(xdr, nn->nfsd_name, strlen(nn->nfsd_name));
+}
+
+static __be32
+nfsd4_encode_exchange_id(struct nfsd4_compoundres *resp, __be32 nfserr,
+ union nfsd4_op_u *u)
+{
+ struct nfsd_net *nn = net_generic(SVC_NET(resp->rqstp), nfsd_net_id);
+ struct nfsd4_exchange_id *exid = &u->exchange_id;
+ struct xdr_stream *xdr = resp->xdr;
+
+ /* eir_clientid */
+ nfserr = nfsd4_encode_clientid4(xdr, &exid->clientid);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* eir_sequenceid */
+ nfserr = nfsd4_encode_sequenceid4(xdr, exid->seqid);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* eir_flags */
+ nfserr = nfsd4_encode_uint32_t(xdr, exid->flags);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* eir_state_protect */
+ nfserr = nfsd4_encode_state_protect4_r(xdr, exid);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* eir_server_owner */
+ nfserr = nfsd4_encode_server_owner4(xdr, resp->rqstp);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* eir_server_scope */
+ nfserr = nfsd4_encode_opaque(xdr, nn->nfsd_name,
+ strlen(nn->nfsd_name));
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* eir_server_impl_id<1> */
+ if (xdr_stream_encode_u32(xdr, 0) != XDR_UNIT)
return nfserr_resource;
- /* The server_owner struct */
- p = xdr_encode_hyper(p, minor_id); /* Minor id */
- /* major id */
- p = xdr_encode_opaque(p, major_id, major_id_sz);
+ return nfs_ok;
+}
- /* Server scope */
- p = xdr_encode_opaque(p, server_scope, server_scope_sz);
+static __be32
+nfsd4_encode_channel_attrs4(struct xdr_stream *xdr,
+ const struct nfsd4_channel_attrs *attrs)
+{
+ __be32 status;
- /* Implementation id */
- *p++ = cpu_to_be32(0); /* zero length nfs_impl_id4 array */
- return 0;
+ /* ca_headerpadsize */
+ status = nfsd4_encode_count4(xdr, 0);
+ if (status != nfs_ok)
+ return status;
+ /* ca_maxrequestsize */
+ status = nfsd4_encode_count4(xdr, attrs->maxreq_sz);
+ if (status != nfs_ok)
+ return status;
+ /* ca_maxresponsesize */
+ status = nfsd4_encode_count4(xdr, attrs->maxresp_sz);
+ if (status != nfs_ok)
+ return status;
+ /* ca_maxresponsesize_cached */
+ status = nfsd4_encode_count4(xdr, attrs->maxresp_cached);
+ if (status != nfs_ok)
+ return status;
+ /* ca_maxoperations */
+ status = nfsd4_encode_count4(xdr, attrs->maxops);
+ if (status != nfs_ok)
+ return status;
+ /* ca_maxrequests */
+ status = nfsd4_encode_count4(xdr, attrs->maxreqs);
+ if (status != nfs_ok)
+ return status;
+ /* ca_rdma_ird<1> */
+ if (xdr_stream_encode_u32(xdr, attrs->nr_rdma_attrs) != XDR_UNIT)
+ return nfserr_resource;
+ if (attrs->nr_rdma_attrs)
+ return nfsd4_encode_uint32_t(xdr, attrs->rdma_attrs);
+ return nfs_ok;
}
static __be32
@@ -4576,52 +4879,25 @@ nfsd4_encode_create_session(struct nfsd4_compoundres *resp, __be32 nfserr,
{
struct nfsd4_create_session *sess = &u->create_session;
struct xdr_stream *xdr = resp->xdr;
- __be32 *p;
-
- p = xdr_reserve_space(xdr, 24);
- if (!p)
- return nfserr_resource;
- p = xdr_encode_opaque_fixed(p, sess->sessionid.data,
- NFS4_MAX_SESSIONID_LEN);
- *p++ = cpu_to_be32(sess->seqid);
- *p++ = cpu_to_be32(sess->flags);
- p = xdr_reserve_space(xdr, 28);
- if (!p)
- return nfserr_resource;
- *p++ = cpu_to_be32(0); /* headerpadsz */
- *p++ = cpu_to_be32(sess->fore_channel.maxreq_sz);
- *p++ = cpu_to_be32(sess->fore_channel.maxresp_sz);
- *p++ = cpu_to_be32(sess->fore_channel.maxresp_cached);
- *p++ = cpu_to_be32(sess->fore_channel.maxops);
- *p++ = cpu_to_be32(sess->fore_channel.maxreqs);
- *p++ = cpu_to_be32(sess->fore_channel.nr_rdma_attrs);
-
- if (sess->fore_channel.nr_rdma_attrs) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- return nfserr_resource;
- *p++ = cpu_to_be32(sess->fore_channel.rdma_attrs);
- }
-
- p = xdr_reserve_space(xdr, 28);
- if (!p)
- return nfserr_resource;
- *p++ = cpu_to_be32(0); /* headerpadsz */
- *p++ = cpu_to_be32(sess->back_channel.maxreq_sz);
- *p++ = cpu_to_be32(sess->back_channel.maxresp_sz);
- *p++ = cpu_to_be32(sess->back_channel.maxresp_cached);
- *p++ = cpu_to_be32(sess->back_channel.maxops);
- *p++ = cpu_to_be32(sess->back_channel.maxreqs);
- *p++ = cpu_to_be32(sess->back_channel.nr_rdma_attrs);
-
- if (sess->back_channel.nr_rdma_attrs) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- return nfserr_resource;
- *p++ = cpu_to_be32(sess->back_channel.rdma_attrs);
- }
- return 0;
+ /* csr_sessionid */
+ nfserr = nfsd4_encode_sessionid4(xdr, &sess->sessionid);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* csr_sequence */
+ nfserr = nfsd4_encode_sequenceid4(xdr, sess->seqid);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* csr_flags */
+ nfserr = nfsd4_encode_uint32_t(xdr, sess->flags);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* csr_fore_chan_attrs */
+ nfserr = nfsd4_encode_channel_attrs4(xdr, &sess->fore_channel);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* csr_back_chan_attrs */
+ return nfsd4_encode_channel_attrs4(xdr, &sess->back_channel);
}
static __be32
@@ -4630,22 +4906,35 @@ nfsd4_encode_sequence(struct nfsd4_compoundres *resp, __be32 nfserr,
{
struct nfsd4_sequence *seq = &u->sequence;
struct xdr_stream *xdr = resp->xdr;
- __be32 *p;
- p = xdr_reserve_space(xdr, NFS4_MAX_SESSIONID_LEN + 20);
- if (!p)
- return nfserr_resource;
- p = xdr_encode_opaque_fixed(p, seq->sessionid.data,
- NFS4_MAX_SESSIONID_LEN);
- *p++ = cpu_to_be32(seq->seqid);
- *p++ = cpu_to_be32(seq->slotid);
+ /* sr_sessionid */
+ nfserr = nfsd4_encode_sessionid4(xdr, &seq->sessionid);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* sr_sequenceid */
+ nfserr = nfsd4_encode_sequenceid4(xdr, seq->seqid);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* sr_slotid */
+ nfserr = nfsd4_encode_slotid4(xdr, seq->slotid);
+ if (nfserr != nfs_ok)
+ return nfserr;
/* Note slotid's are numbered from zero: */
- *p++ = cpu_to_be32(seq->maxslots - 1); /* sr_highest_slotid */
- *p++ = cpu_to_be32(seq->maxslots - 1); /* sr_target_highest_slotid */
- *p++ = cpu_to_be32(seq->status_flags);
+ /* sr_highest_slotid */
+ nfserr = nfsd4_encode_slotid4(xdr, seq->maxslots - 1);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* sr_target_highest_slotid */
+ nfserr = nfsd4_encode_slotid4(xdr, seq->maxslots - 1);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* sr_status_flags */
+ nfserr = nfsd4_encode_uint32_t(xdr, seq->status_flags);
+ if (nfserr != nfs_ok)
+ return nfserr;
resp->cstate.data_offset = xdr->buf->len; /* DRC cache data pointer */
- return 0;
+ return nfs_ok;
}
static __be32
@@ -4653,125 +4942,132 @@ nfsd4_encode_test_stateid(struct nfsd4_compoundres *resp, __be32 nfserr,
union nfsd4_op_u *u)
{
struct nfsd4_test_stateid *test_stateid = &u->test_stateid;
- struct xdr_stream *xdr = resp->xdr;
struct nfsd4_test_stateid_id *stateid, *next;
- __be32 *p;
+ struct xdr_stream *xdr = resp->xdr;
- p = xdr_reserve_space(xdr, 4 + (4 * test_stateid->ts_num_ids));
- if (!p)
+ /* tsr_status_codes<> */
+ if (xdr_stream_encode_u32(xdr, test_stateid->ts_num_ids) != XDR_UNIT)
return nfserr_resource;
- *p++ = htonl(test_stateid->ts_num_ids);
-
- list_for_each_entry_safe(stateid, next, &test_stateid->ts_stateid_list, ts_id_list) {
- *p++ = stateid->ts_id_status;
+ list_for_each_entry_safe(stateid, next,
+ &test_stateid->ts_stateid_list, ts_id_list) {
+ if (xdr_stream_encode_be32(xdr, stateid->ts_id_status) != XDR_UNIT)
+ return nfserr_resource;
}
-
- return 0;
+ return nfs_ok;
}
#ifdef CONFIG_NFSD_PNFS
static __be32
-nfsd4_encode_getdeviceinfo(struct nfsd4_compoundres *resp, __be32 nfserr,
- union nfsd4_op_u *u)
+nfsd4_encode_device_addr4(struct xdr_stream *xdr,
+ const struct nfsd4_getdeviceinfo *gdev)
{
- struct nfsd4_getdeviceinfo *gdev = &u->getdeviceinfo;
- struct xdr_stream *xdr = resp->xdr;
+ u32 needed_len, starting_len = xdr->buf->len;
const struct nfsd4_layout_ops *ops;
- u32 starting_len = xdr->buf->len, needed_len;
- __be32 *p;
+ __be32 status;
- p = xdr_reserve_space(xdr, 4);
- if (!p)
+ /* da_layout_type */
+ if (xdr_stream_encode_u32(xdr, gdev->gd_layout_type) != XDR_UNIT)
return nfserr_resource;
-
- *p++ = cpu_to_be32(gdev->gd_layout_type);
-
+ /* da_addr_body */
ops = nfsd4_layout_ops[gdev->gd_layout_type];
- nfserr = ops->encode_getdeviceinfo(xdr, gdev);
- if (nfserr) {
+ status = ops->encode_getdeviceinfo(xdr, gdev);
+ if (status != nfs_ok) {
/*
- * We don't bother to burden the layout drivers with
- * enforcing gd_maxcount, just tell the client to
- * come back with a bigger buffer if it's not enough.
+ * Don't burden the layout drivers with enforcing
+ * gd_maxcount. Just tell the client to come back
+ * with a bigger buffer if it's not enough.
*/
- if (xdr->buf->len + 4 > gdev->gd_maxcount)
+ if (xdr->buf->len + XDR_UNIT > gdev->gd_maxcount)
goto toosmall;
- return nfserr;
+ return status;
}
- if (gdev->gd_notify_types) {
- p = xdr_reserve_space(xdr, 4 + 4);
- if (!p)
- return nfserr_resource;
- *p++ = cpu_to_be32(1); /* bitmap length */
- *p++ = cpu_to_be32(gdev->gd_notify_types);
- } else {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- return nfserr_resource;
- *p++ = 0;
- }
+ return nfs_ok;
- return 0;
toosmall:
- dprintk("%s: maxcount too small\n", __func__);
- needed_len = xdr->buf->len + 4 /* notifications */;
+ needed_len = xdr->buf->len + XDR_UNIT; /* notifications */
xdr_truncate_encode(xdr, starting_len);
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- return nfserr_resource;
- *p++ = cpu_to_be32(needed_len);
+
+ status = nfsd4_encode_count4(xdr, needed_len);
+ if (status != nfs_ok)
+ return status;
return nfserr_toosmall;
}
static __be32
-nfsd4_encode_layoutget(struct nfsd4_compoundres *resp, __be32 nfserr,
+nfsd4_encode_getdeviceinfo(struct nfsd4_compoundres *resp, __be32 nfserr,
union nfsd4_op_u *u)
{
- struct nfsd4_layoutget *lgp = &u->layoutget;
+ struct nfsd4_getdeviceinfo *gdev = &u->getdeviceinfo;
struct xdr_stream *xdr = resp->xdr;
- const struct nfsd4_layout_ops *ops;
- __be32 *p;
-
- p = xdr_reserve_space(xdr, 36 + sizeof(stateid_opaque_t));
- if (!p)
- return nfserr_resource;
- *p++ = cpu_to_be32(1); /* we always set return-on-close */
- *p++ = cpu_to_be32(lgp->lg_sid.si_generation);
- p = xdr_encode_opaque_fixed(p, &lgp->lg_sid.si_opaque,
- sizeof(stateid_opaque_t));
+ /* gdir_device_addr */
+ nfserr = nfsd4_encode_device_addr4(xdr, gdev);
+ if (nfserr)
+ return nfserr;
+ /* gdir_notification */
+ return nfsd4_encode_bitmap4(xdr, gdev->gd_notify_types, 0, 0);
+}
- *p++ = cpu_to_be32(1); /* we always return a single layout */
- p = xdr_encode_hyper(p, lgp->lg_seg.offset);
- p = xdr_encode_hyper(p, lgp->lg_seg.length);
- *p++ = cpu_to_be32(lgp->lg_seg.iomode);
- *p++ = cpu_to_be32(lgp->lg_layout_type);
+static __be32
+nfsd4_encode_layout4(struct xdr_stream *xdr, const struct nfsd4_layoutget *lgp)
+{
+ const struct nfsd4_layout_ops *ops = nfsd4_layout_ops[lgp->lg_layout_type];
+ __be32 status;
- ops = nfsd4_layout_ops[lgp->lg_layout_type];
+ /* lo_offset */
+ status = nfsd4_encode_offset4(xdr, lgp->lg_seg.offset);
+ if (status != nfs_ok)
+ return status;
+ /* lo_length */
+ status = nfsd4_encode_length4(xdr, lgp->lg_seg.length);
+ if (status != nfs_ok)
+ return status;
+ /* lo_iomode */
+ if (xdr_stream_encode_u32(xdr, lgp->lg_seg.iomode) != XDR_UNIT)
+ return nfserr_resource;
+ /* lo_content */
+ if (xdr_stream_encode_u32(xdr, lgp->lg_layout_type) != XDR_UNIT)
+ return nfserr_resource;
return ops->encode_layoutget(xdr, lgp);
}
static __be32
+nfsd4_encode_layoutget(struct nfsd4_compoundres *resp, __be32 nfserr,
+ union nfsd4_op_u *u)
+{
+ struct nfsd4_layoutget *lgp = &u->layoutget;
+ struct xdr_stream *xdr = resp->xdr;
+
+ /* logr_return_on_close */
+ nfserr = nfsd4_encode_bool(xdr, true);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* logr_stateid */
+ nfserr = nfsd4_encode_stateid4(xdr, &lgp->lg_sid);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* logr_layout<> */
+ if (xdr_stream_encode_u32(xdr, 1) != XDR_UNIT)
+ return nfserr_resource;
+ return nfsd4_encode_layout4(xdr, lgp);
+}
+
+static __be32
nfsd4_encode_layoutcommit(struct nfsd4_compoundres *resp, __be32 nfserr,
union nfsd4_op_u *u)
{
struct nfsd4_layoutcommit *lcp = &u->layoutcommit;
struct xdr_stream *xdr = resp->xdr;
- __be32 *p;
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- return nfserr_resource;
- *p++ = cpu_to_be32(lcp->lc_size_chg);
- if (lcp->lc_size_chg) {
- p = xdr_reserve_space(xdr, 8);
- if (!p)
- return nfserr_resource;
- p = xdr_encode_hyper(p, lcp->lc_newsize);
- }
-
- return 0;
+ /* ns_sizechanged */
+ nfserr = nfsd4_encode_bool(xdr, lcp->lc_size_chg);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ if (lcp->lc_size_chg)
+ /* ns_size */
+ return nfsd4_encode_length4(xdr, lcp->lc_newsize);
+ return nfs_ok;
}
static __be32
@@ -4780,103 +5076,108 @@ nfsd4_encode_layoutreturn(struct nfsd4_compoundres *resp, __be32 nfserr,
{
struct nfsd4_layoutreturn *lrp = &u->layoutreturn;
struct xdr_stream *xdr = resp->xdr;
- __be32 *p;
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- return nfserr_resource;
- *p++ = cpu_to_be32(lrp->lrs_present);
+ /* lrs_present */
+ nfserr = nfsd4_encode_bool(xdr, lrp->lrs_present);
+ if (nfserr != nfs_ok)
+ return nfserr;
if (lrp->lrs_present)
- return nfsd4_encode_stateid(xdr, &lrp->lr_sid);
- return 0;
+ /* lrs_stateid */
+ return nfsd4_encode_stateid4(xdr, &lrp->lr_sid);
+ return nfs_ok;
}
#endif /* CONFIG_NFSD_PNFS */
static __be32
-nfsd42_encode_write_res(struct nfsd4_compoundres *resp,
- struct nfsd42_write_res *write, bool sync)
+nfsd4_encode_write_response4(struct xdr_stream *xdr,
+ const struct nfsd4_copy *copy)
{
- __be32 *p;
- p = xdr_reserve_space(resp->xdr, 4);
- if (!p)
- return nfserr_resource;
+ const struct nfsd42_write_res *write = &copy->cp_res;
+ u32 count = nfsd4_copy_is_sync(copy) ? 0 : 1;
+ __be32 status;
- if (sync)
- *p++ = cpu_to_be32(0);
- else {
- __be32 nfserr;
- *p++ = cpu_to_be32(1);
- nfserr = nfsd4_encode_stateid(resp->xdr, &write->cb_stateid);
- if (nfserr)
- return nfserr;
+ /* wr_callback_id<1> */
+ if (xdr_stream_encode_u32(xdr, count) != XDR_UNIT)
+ return nfserr_resource;
+ if (count) {
+ status = nfsd4_encode_stateid4(xdr, &write->cb_stateid);
+ if (status != nfs_ok)
+ return status;
}
- p = xdr_reserve_space(resp->xdr, 8 + 4 + NFS4_VERIFIER_SIZE);
- if (!p)
+
+ /* wr_count */
+ status = nfsd4_encode_length4(xdr, write->wr_bytes_written);
+ if (status != nfs_ok)
+ return status;
+ /* wr_committed */
+ if (xdr_stream_encode_u32(xdr, write->wr_stable_how) != XDR_UNIT)
return nfserr_resource;
+ /* wr_writeverf */
+ return nfsd4_encode_verifier4(xdr, &write->wr_verifier);
+}
- p = xdr_encode_hyper(p, write->wr_bytes_written);
- *p++ = cpu_to_be32(write->wr_stable_how);
- p = xdr_encode_opaque_fixed(p, write->wr_verifier.data,
- NFS4_VERIFIER_SIZE);
- return nfs_ok;
+static __be32 nfsd4_encode_copy_requirements4(struct xdr_stream *xdr,
+ const struct nfsd4_copy *copy)
+{
+ __be32 status;
+
+ /* cr_consecutive */
+ status = nfsd4_encode_bool(xdr, true);
+ if (status != nfs_ok)
+ return status;
+ /* cr_synchronous */
+ return nfsd4_encode_bool(xdr, nfsd4_copy_is_sync(copy));
}
static __be32
-nfsd42_encode_nl4_server(struct nfsd4_compoundres *resp, struct nl4_server *ns)
+nfsd4_encode_copy(struct nfsd4_compoundres *resp, __be32 nfserr,
+ union nfsd4_op_u *u)
{
- struct xdr_stream *xdr = resp->xdr;
- struct nfs42_netaddr *addr;
- __be32 *p;
+ struct nfsd4_copy *copy = &u->copy;
- p = xdr_reserve_space(xdr, 4);
- *p++ = cpu_to_be32(ns->nl4_type);
+ nfserr = nfsd4_encode_write_response4(resp->xdr, copy);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ return nfsd4_encode_copy_requirements4(resp->xdr, copy);
+}
+static __be32
+nfsd4_encode_netloc4(struct xdr_stream *xdr, const struct nl4_server *ns)
+{
+ __be32 status;
+
+ if (xdr_stream_encode_u32(xdr, ns->nl4_type) != XDR_UNIT)
+ return nfserr_resource;
switch (ns->nl4_type) {
case NL4_NETADDR:
- addr = &ns->u.nl4_addr;
-
- /* netid_len, netid, uaddr_len, uaddr (port included
- * in RPCBIND_MAXUADDRLEN)
- */
- p = xdr_reserve_space(xdr,
- 4 /* netid len */ +
- (XDR_QUADLEN(addr->netid_len) * 4) +
- 4 /* uaddr len */ +
- (XDR_QUADLEN(addr->addr_len) * 4));
- if (!p)
- return nfserr_resource;
-
- *p++ = cpu_to_be32(addr->netid_len);
- p = xdr_encode_opaque_fixed(p, addr->netid,
- addr->netid_len);
- *p++ = cpu_to_be32(addr->addr_len);
- p = xdr_encode_opaque_fixed(p, addr->addr,
- addr->addr_len);
+ /* nl_addr */
+ status = nfsd4_encode_netaddr4(xdr, &ns->u.nl4_addr);
break;
default:
- WARN_ON_ONCE(ns->nl4_type != NL4_NETADDR);
- return nfserr_inval;
+ status = nfserr_serverfault;
}
-
- return 0;
+ return status;
}
static __be32
-nfsd4_encode_copy(struct nfsd4_compoundres *resp, __be32 nfserr,
- union nfsd4_op_u *u)
+nfsd4_encode_copy_notify(struct nfsd4_compoundres *resp, __be32 nfserr,
+ union nfsd4_op_u *u)
{
- struct nfsd4_copy *copy = &u->copy;
- __be32 *p;
+ struct nfsd4_copy_notify *cn = &u->copy_notify;
+ struct xdr_stream *xdr = resp->xdr;
- nfserr = nfsd42_encode_write_res(resp, &copy->cp_res,
- nfsd4_copy_is_sync(copy));
+ /* cnr_lease_time */
+ nfserr = nfsd4_encode_nfstime4(xdr, &cn->cpn_lease_time);
if (nfserr)
return nfserr;
-
- p = xdr_reserve_space(resp->xdr, 4 + 4);
- *p++ = xdr_one; /* cr_consecutive */
- *p = nfsd4_copy_is_sync(copy) ? xdr_one : xdr_zero;
- return 0;
+ /* cnr_stateid */
+ nfserr = nfsd4_encode_stateid4(xdr, &cn->cpn_cnr_stateid);
+ if (nfserr)
+ return nfserr;
+ /* cnr_source_server<> */
+ if (xdr_stream_encode_u32(xdr, 1) != XDR_UNIT)
+ return nfserr_resource;
+ return nfsd4_encode_netloc4(xdr, cn->cpn_src);
}
static __be32
@@ -4885,14 +5186,15 @@ nfsd4_encode_offload_status(struct nfsd4_compoundres *resp, __be32 nfserr,
{
struct nfsd4_offload_status *os = &u->offload_status;
struct xdr_stream *xdr = resp->xdr;
- __be32 *p;
- p = xdr_reserve_space(xdr, 8 + 4);
- if (!p)
+ /* osr_count */
+ nfserr = nfsd4_encode_length4(xdr, os->count);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* osr_complete<1> */
+ if (xdr_stream_encode_u32(xdr, 0) != XDR_UNIT)
return nfserr_resource;
- p = xdr_encode_hyper(p, os->count);
- *p++ = cpu_to_be32(0);
- return nfserr;
+ return nfs_ok;
}
static __be32
@@ -4970,53 +5272,18 @@ out:
}
static __be32
-nfsd4_encode_copy_notify(struct nfsd4_compoundres *resp, __be32 nfserr,
- union nfsd4_op_u *u)
-{
- struct nfsd4_copy_notify *cn = &u->copy_notify;
- struct xdr_stream *xdr = resp->xdr;
- __be32 *p;
-
- if (nfserr)
- return nfserr;
-
- /* 8 sec, 4 nsec */
- p = xdr_reserve_space(xdr, 12);
- if (!p)
- return nfserr_resource;
-
- /* cnr_lease_time */
- p = xdr_encode_hyper(p, cn->cpn_sec);
- *p++ = cpu_to_be32(cn->cpn_nsec);
-
- /* cnr_stateid */
- nfserr = nfsd4_encode_stateid(xdr, &cn->cpn_cnr_stateid);
- if (nfserr)
- return nfserr;
-
- /* cnr_src.nl_nsvr */
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- return nfserr_resource;
-
- *p++ = cpu_to_be32(1);
-
- nfserr = nfsd42_encode_nl4_server(resp, cn->cpn_src);
- return nfserr;
-}
-
-static __be32
nfsd4_encode_seek(struct nfsd4_compoundres *resp, __be32 nfserr,
union nfsd4_op_u *u)
{
struct nfsd4_seek *seek = &u->seek;
- __be32 *p;
-
- p = xdr_reserve_space(resp->xdr, 4 + 8);
- *p++ = cpu_to_be32(seek->seek_eof);
- p = xdr_encode_hyper(p, seek->seek_pos);
+ struct xdr_stream *xdr = resp->xdr;
- return 0;
+ /* sr_eof */
+ nfserr = nfsd4_encode_bool(xdr, seek->seek_eof);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* sr_offset */
+ return nfsd4_encode_offset4(xdr, seek->seek_pos);
}
static __be32