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-rw-r--r--fs/nfsd/Kconfig19
-rw-r--r--fs/nfsd/Makefile1
-rw-r--r--fs/nfsd/blocklayout.c2
-rw-r--r--fs/nfsd/blocklayoutxdr.c4
-rw-r--r--fs/nfsd/export.c14
-rw-r--r--fs/nfsd/export.h2
-rw-r--r--fs/nfsd/flexfilelayout.c133
-rw-r--r--fs/nfsd/flexfilelayoutxdr.c115
-rw-r--r--fs/nfsd/flexfilelayoutxdr.h49
-rw-r--r--fs/nfsd/nfs4layouts.c16
-rw-r--r--fs/nfsd/nfs4proc.c48
-rw-r--r--fs/nfsd/nfs4state.c139
-rw-r--r--fs/nfsd/nfs4xdr.c81
-rw-r--r--fs/nfsd/nfsd.h5
-rw-r--r--fs/nfsd/nfsfh.c18
-rw-r--r--fs/nfsd/nfsproc.c7
-rw-r--r--fs/nfsd/nfsxdr.c2
-rw-r--r--fs/nfsd/pnfs.h4
-rw-r--r--fs/nfsd/state.h1
-rw-r--r--fs/nfsd/vfs.c145
-rw-r--r--fs/nfsd/vfs.h3
-rw-r--r--fs/nfsd/xdr4.h5
22 files changed, 616 insertions, 197 deletions
diff --git a/fs/nfsd/Kconfig b/fs/nfsd/Kconfig
index c9f583d7bac8..47febcf99185 100644
--- a/fs/nfsd/Kconfig
+++ b/fs/nfsd/Kconfig
@@ -90,6 +90,7 @@ config NFSD_BLOCKLAYOUT
bool "NFSv4.1 server support for pNFS block layouts"
depends on NFSD_V4 && BLOCK
select NFSD_PNFS
+ select EXPORTFS_BLOCK_OPS
help
This option enables support for the exporting pNFS block layouts
in the kernel's NFS server. The pNFS block layout enables NFS
@@ -102,6 +103,7 @@ config NFSD_SCSILAYOUT
bool "NFSv4.1 server support for pNFS SCSI layouts"
depends on NFSD_V4 && BLOCK
select NFSD_PNFS
+ select EXPORTFS_BLOCK_OPS
help
This option enables support for the exporting pNFS SCSI layouts
in the kernel's NFS server. The pNFS SCSI layout enables NFS
@@ -111,6 +113,23 @@ config NFSD_SCSILAYOUT
If unsure, say N.
+config NFSD_FLEXFILELAYOUT
+ bool "NFSv4.1 server support for pNFS Flex File layouts"
+ depends on NFSD_V4
+ select NFSD_PNFS
+ help
+ This option enables support for the exporting pNFS Flex File
+ layouts in the kernel's NFS server. The pNFS Flex File layout
+ enables NFS clients to directly perform I/O to NFSv3 devices
+ accesible to both the server and the clients. See
+ draft-ietf-nfsv4-flex-files for more details.
+
+ Warning, this server implements the bare minimum functionality
+ to be a flex file server - it is for testing the client,
+ not for use in production.
+
+ If unsure, say N.
+
config NFSD_V4_SECURITY_LABEL
bool "Provide Security Label support for NFSv4 server"
depends on NFSD_V4 && SECURITY
diff --git a/fs/nfsd/Makefile b/fs/nfsd/Makefile
index 3ae5f3c77e28..5f5d3a76980c 100644
--- a/fs/nfsd/Makefile
+++ b/fs/nfsd/Makefile
@@ -20,3 +20,4 @@ nfsd-$(CONFIG_NFSD_V4) += nfs4proc.o nfs4xdr.o nfs4state.o nfs4idmap.o \
nfsd-$(CONFIG_NFSD_PNFS) += nfs4layouts.o
nfsd-$(CONFIG_NFSD_BLOCKLAYOUT) += blocklayout.o blocklayoutxdr.o
nfsd-$(CONFIG_NFSD_SCSILAYOUT) += blocklayout.o blocklayoutxdr.o
+nfsd-$(CONFIG_NFSD_FLEXFILELAYOUT) += flexfilelayout.o flexfilelayoutxdr.o
diff --git a/fs/nfsd/blocklayout.c b/fs/nfsd/blocklayout.c
index ad2c05e80a83..5a1708441510 100644
--- a/fs/nfsd/blocklayout.c
+++ b/fs/nfsd/blocklayout.c
@@ -163,6 +163,7 @@ nfsd4_block_get_device_info_simple(struct super_block *sb,
static __be32
nfsd4_block_proc_getdeviceinfo(struct super_block *sb,
+ struct svc_rqst *rqstp,
struct nfs4_client *clp,
struct nfsd4_getdeviceinfo *gdp)
{
@@ -355,6 +356,7 @@ nfsd4_block_get_device_info_scsi(struct super_block *sb,
static __be32
nfsd4_scsi_proc_getdeviceinfo(struct super_block *sb,
+ struct svc_rqst *rqstp,
struct nfs4_client *clp,
struct nfsd4_getdeviceinfo *gdp)
{
diff --git a/fs/nfsd/blocklayoutxdr.c b/fs/nfsd/blocklayoutxdr.c
index 4ebaaf4b8d8a..ac6f54546fdd 100644
--- a/fs/nfsd/blocklayoutxdr.c
+++ b/fs/nfsd/blocklayoutxdr.c
@@ -44,7 +44,7 @@ nfsd4_block_encode_volume(struct xdr_stream *xdr, struct pnfs_block_volume *b)
switch (b->type) {
case PNFS_BLOCK_VOLUME_SIMPLE:
- len = 4 + 4 + 8 + 4 + b->simple.sig_len;
+ len = 4 + 4 + 8 + 4 + (XDR_QUADLEN(b->simple.sig_len) << 2);
p = xdr_reserve_space(xdr, len);
if (!p)
return -ETOOSMALL;
@@ -55,7 +55,7 @@ nfsd4_block_encode_volume(struct xdr_stream *xdr, struct pnfs_block_volume *b)
p = xdr_encode_opaque(p, b->simple.sig, b->simple.sig_len);
break;
case PNFS_BLOCK_VOLUME_SCSI:
- len = 4 + 4 + 4 + 4 + b->scsi.designator_len + 8;
+ len = 4 + 4 + 4 + 4 + (XDR_QUADLEN(b->scsi.designator_len) << 2) + 8;
p = xdr_reserve_space(xdr, len);
if (!p)
return -ETOOSMALL;
diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c
index b4d84b579f20..43e109cc0ccc 100644
--- a/fs/nfsd/export.c
+++ b/fs/nfsd/export.c
@@ -706,7 +706,7 @@ static void svc_export_init(struct cache_head *cnew, struct cache_head *citem)
new->ex_fslocs.locations = NULL;
new->ex_fslocs.locations_count = 0;
new->ex_fslocs.migrated = 0;
- new->ex_layout_type = 0;
+ new->ex_layout_types = 0;
new->ex_uuid = NULL;
new->cd = item->cd;
}
@@ -731,7 +731,7 @@ static void export_update(struct cache_head *cnew, struct cache_head *citem)
item->ex_fslocs.locations_count = 0;
new->ex_fslocs.migrated = item->ex_fslocs.migrated;
item->ex_fslocs.migrated = 0;
- new->ex_layout_type = item->ex_layout_type;
+ new->ex_layout_types = item->ex_layout_types;
new->ex_nflavors = item->ex_nflavors;
for (i = 0; i < MAX_SECINFO_LIST; i++) {
new->ex_flavors[i] = item->ex_flavors[i];
@@ -954,6 +954,16 @@ __be32 check_nfsd_access(struct svc_export *exp, struct svc_rqst *rqstp)
rqstp->rq_cred.cr_flavor == RPC_AUTH_UNIX)
return 0;
}
+
+ /* If the compound op contains a spo_must_allowed op,
+ * it will be sent with integrity/protection which
+ * will have to be expressly allowed on mounts that
+ * don't support it
+ */
+
+ if (nfsd4_spo_must_allow(rqstp))
+ return 0;
+
return nfserr_wrongsec;
}
diff --git a/fs/nfsd/export.h b/fs/nfsd/export.h
index 2e315072bf3f..730f15eeb7ed 100644
--- a/fs/nfsd/export.h
+++ b/fs/nfsd/export.h
@@ -57,7 +57,7 @@ struct svc_export {
struct nfsd4_fs_locations ex_fslocs;
uint32_t ex_nflavors;
struct exp_flavor_info ex_flavors[MAX_SECINFO_LIST];
- enum pnfs_layouttype ex_layout_type;
+ u32 ex_layout_types;
struct nfsd4_deviceid_map *ex_devid_map;
struct cache_detail *cd;
};
diff --git a/fs/nfsd/flexfilelayout.c b/fs/nfsd/flexfilelayout.c
new file mode 100644
index 000000000000..df880e9fa71f
--- /dev/null
+++ b/fs/nfsd/flexfilelayout.c
@@ -0,0 +1,133 @@
+/*
+ * Copyright (c) 2016 Tom Haynes <loghyr@primarydata.com>
+ *
+ * The following implements a super-simple flex-file server
+ * where the NFSv4.1 mds is also the ds. And the storage is
+ * the same. I.e., writing to the mds via a NFSv4.1 WRITE
+ * goes to the same location as the NFSv3 WRITE.
+ */
+#include <linux/slab.h>
+
+#include <linux/nfsd/debug.h>
+
+#include <linux/sunrpc/addr.h>
+
+#include "flexfilelayoutxdr.h"
+#include "pnfs.h"
+
+#define NFSDDBG_FACILITY NFSDDBG_PNFS
+
+static __be32
+nfsd4_ff_proc_layoutget(struct inode *inode, const struct svc_fh *fhp,
+ struct nfsd4_layoutget *args)
+{
+ struct nfsd4_layout_seg *seg = &args->lg_seg;
+ u32 device_generation = 0;
+ int error;
+ uid_t u;
+
+ struct pnfs_ff_layout *fl;
+
+ /*
+ * The super simple flex file server has 1 mirror, 1 data server,
+ * and 1 file handle. So instead of 4 allocs, do 1 for now.
+ * Zero it out for the stateid - don't want junk in there!
+ */
+ error = -ENOMEM;
+ fl = kzalloc(sizeof(*fl), GFP_KERNEL);
+ if (!fl)
+ goto out_error;
+ args->lg_content = fl;
+
+ /*
+ * Avoid layout commit, try to force the I/O to the DS,
+ * and for fun, cause all IOMODE_RW layout segments to
+ * effectively be WRITE only.
+ */
+ fl->flags = FF_FLAGS_NO_LAYOUTCOMMIT | FF_FLAGS_NO_IO_THRU_MDS |
+ FF_FLAGS_NO_READ_IO;
+
+ /* Do not allow a IOMODE_READ segment to have write pemissions */
+ if (seg->iomode == IOMODE_READ) {
+ u = from_kuid(&init_user_ns, inode->i_uid) + 1;
+ fl->uid = make_kuid(&init_user_ns, u);
+ } else
+ fl->uid = inode->i_uid;
+ fl->gid = inode->i_gid;
+
+ error = nfsd4_set_deviceid(&fl->deviceid, fhp, device_generation);
+ if (error)
+ goto out_error;
+
+ fl->fh.size = fhp->fh_handle.fh_size;
+ memcpy(fl->fh.data, &fhp->fh_handle.fh_base, fl->fh.size);
+
+ /* Give whole file layout segments */
+ seg->offset = 0;
+ seg->length = NFS4_MAX_UINT64;
+
+ dprintk("GET: 0x%llx:0x%llx %d\n", seg->offset, seg->length,
+ seg->iomode);
+ return 0;
+
+out_error:
+ seg->length = 0;
+ return nfserrno(error);
+}
+
+static __be32
+nfsd4_ff_proc_getdeviceinfo(struct super_block *sb, struct svc_rqst *rqstp,
+ struct nfs4_client *clp, struct nfsd4_getdeviceinfo *gdp)
+{
+ struct pnfs_ff_device_addr *da;
+
+ u16 port;
+ char addr[INET6_ADDRSTRLEN];
+
+ da = kzalloc(sizeof(struct pnfs_ff_device_addr), GFP_KERNEL);
+ if (!da)
+ return nfserrno(-ENOMEM);
+
+ gdp->gd_device = da;
+
+ da->version = 3;
+ da->minor_version = 0;
+
+ da->rsize = svc_max_payload(rqstp);
+ da->wsize = da->rsize;
+
+ rpc_ntop((struct sockaddr *)&rqstp->rq_daddr,
+ addr, INET6_ADDRSTRLEN);
+ if (rqstp->rq_daddr.ss_family == AF_INET) {
+ struct sockaddr_in *sin;
+
+ sin = (struct sockaddr_in *)&rqstp->rq_daddr;
+ port = ntohs(sin->sin_port);
+ snprintf(da->netaddr.netid, FF_NETID_LEN + 1, "tcp");
+ da->netaddr.netid_len = 3;
+ } else {
+ struct sockaddr_in6 *sin6;
+
+ sin6 = (struct sockaddr_in6 *)&rqstp->rq_daddr;
+ port = ntohs(sin6->sin6_port);
+ snprintf(da->netaddr.netid, FF_NETID_LEN + 1, "tcp6");
+ da->netaddr.netid_len = 4;
+ }
+
+ da->netaddr.addr_len =
+ snprintf(da->netaddr.addr, FF_ADDR_LEN + 1,
+ "%s.%hhu.%hhu", addr, port >> 8, port & 0xff);
+
+ da->tightly_coupled = false;
+
+ return 0;
+}
+
+const struct nfsd4_layout_ops ff_layout_ops = {
+ .notify_types =
+ NOTIFY_DEVICEID4_DELETE | NOTIFY_DEVICEID4_CHANGE,
+ .proc_getdeviceinfo = nfsd4_ff_proc_getdeviceinfo,
+ .encode_getdeviceinfo = nfsd4_ff_encode_getdeviceinfo,
+ .proc_layoutget = nfsd4_ff_proc_layoutget,
+ .encode_layoutget = nfsd4_ff_encode_layoutget,
+};
diff --git a/fs/nfsd/flexfilelayoutxdr.c b/fs/nfsd/flexfilelayoutxdr.c
new file mode 100644
index 000000000000..5e3fd7fc1a9f
--- /dev/null
+++ b/fs/nfsd/flexfilelayoutxdr.c
@@ -0,0 +1,115 @@
+/*
+ * Copyright (c) 2016 Tom Haynes <loghyr@primarydata.com>
+ */
+#include <linux/sunrpc/svc.h>
+#include <linux/nfs4.h>
+
+#include "nfsd.h"
+#include "flexfilelayoutxdr.h"
+
+#define NFSDDBG_FACILITY NFSDDBG_PNFS
+
+struct ff_idmap {
+ char buf[11];
+ int len;
+};
+
+__be32
+nfsd4_ff_encode_layoutget(struct xdr_stream *xdr,
+ struct nfsd4_layoutget *lgp)
+{
+ struct pnfs_ff_layout *fl = lgp->lg_content;
+ int len, mirror_len, ds_len, fh_len;
+ __be32 *p;
+
+ /*
+ * Unlike nfsd4_encode_user, we know these will
+ * always be stringified.
+ */
+ struct ff_idmap uid;
+ struct ff_idmap gid;
+
+ fh_len = 4 + fl->fh.size;
+
+ uid.len = sprintf(uid.buf, "%u", from_kuid(&init_user_ns, fl->uid));
+ gid.len = sprintf(gid.buf, "%u", from_kgid(&init_user_ns, fl->gid));
+
+ /* 8 + len for recording the length, name, and padding */
+ ds_len = 20 + sizeof(stateid_opaque_t) + 4 + fh_len +
+ 8 + uid.len + 8 + gid.len;
+
+ mirror_len = 4 + ds_len;
+
+ /* The layout segment */
+ len = 20 + mirror_len;
+
+ p = xdr_reserve_space(xdr, sizeof(__be32) + len);
+ if (!p)
+ return nfserr_toosmall;
+
+ *p++ = cpu_to_be32(len);
+ p = xdr_encode_hyper(p, 0); /* stripe unit of 1 */
+
+ *p++ = cpu_to_be32(1); /* single mirror */
+ *p++ = cpu_to_be32(1); /* single data server */
+
+ p = xdr_encode_opaque_fixed(p, &fl->deviceid,
+ sizeof(struct nfsd4_deviceid));
+
+ *p++ = cpu_to_be32(1); /* efficiency */
+
+ *p++ = cpu_to_be32(fl->stateid.si_generation);
+ p = xdr_encode_opaque_fixed(p, &fl->stateid.si_opaque,
+ sizeof(stateid_opaque_t));
+
+ *p++ = cpu_to_be32(1); /* single file handle */
+ p = xdr_encode_opaque(p, fl->fh.data, fl->fh.size);
+
+ p = xdr_encode_opaque(p, uid.buf, uid.len);
+ p = xdr_encode_opaque(p, gid.buf, gid.len);
+
+ *p++ = cpu_to_be32(fl->flags);
+ *p++ = cpu_to_be32(0); /* No stats collect hint */
+
+ return 0;
+}
+
+__be32
+nfsd4_ff_encode_getdeviceinfo(struct xdr_stream *xdr,
+ struct nfsd4_getdeviceinfo *gdp)
+{
+ struct pnfs_ff_device_addr *da = gdp->gd_device;
+ int len;
+ int ver_len;
+ int addr_len;
+ __be32 *p;
+
+ /* len + padding for two strings */
+ addr_len = 16 + da->netaddr.netid_len + da->netaddr.addr_len;
+ ver_len = 20;
+
+ len = 4 + ver_len + 4 + addr_len;
+
+ p = xdr_reserve_space(xdr, len + sizeof(__be32));
+ if (!p)
+ return nfserr_resource;
+
+ /*
+ * Fill in the overall length and number of volumes at the beginning
+ * of the layout.
+ */
+ *p++ = cpu_to_be32(len);
+ *p++ = cpu_to_be32(1); /* 1 netaddr */
+ p = xdr_encode_opaque(p, da->netaddr.netid, da->netaddr.netid_len);
+ p = xdr_encode_opaque(p, da->netaddr.addr, da->netaddr.addr_len);
+
+ *p++ = cpu_to_be32(1); /* 1 versions */
+
+ *p++ = cpu_to_be32(da->version);
+ *p++ = cpu_to_be32(da->minor_version);
+ *p++ = cpu_to_be32(da->rsize);
+ *p++ = cpu_to_be32(da->wsize);
+ *p++ = cpu_to_be32(da->tightly_coupled);
+
+ return 0;
+}
diff --git a/fs/nfsd/flexfilelayoutxdr.h b/fs/nfsd/flexfilelayoutxdr.h
new file mode 100644
index 000000000000..467defd4e563
--- /dev/null
+++ b/fs/nfsd/flexfilelayoutxdr.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2016 Tom Haynes <loghyr@primarydata.com>
+ */
+#ifndef _NFSD_FLEXFILELAYOUTXDR_H
+#define _NFSD_FLEXFILELAYOUTXDR_H 1
+
+#include <linux/inet.h>
+#include "xdr4.h"
+
+#define FF_FLAGS_NO_LAYOUTCOMMIT 1
+#define FF_FLAGS_NO_IO_THRU_MDS 2
+#define FF_FLAGS_NO_READ_IO 4
+
+struct xdr_stream;
+
+#define FF_NETID_LEN (4)
+#define FF_ADDR_LEN (INET6_ADDRSTRLEN + 8)
+struct pnfs_ff_netaddr {
+ char netid[FF_NETID_LEN + 1];
+ char addr[FF_ADDR_LEN + 1];
+ u32 netid_len;
+ u32 addr_len;
+};
+
+struct pnfs_ff_device_addr {
+ struct pnfs_ff_netaddr netaddr;
+ u32 version;
+ u32 minor_version;
+ u32 rsize;
+ u32 wsize;
+ bool tightly_coupled;
+};
+
+struct pnfs_ff_layout {
+ u32 flags;
+ u32 stats_collect_hint;
+ kuid_t uid;
+ kgid_t gid;
+ struct nfsd4_deviceid deviceid;
+ stateid_t stateid;
+ struct nfs_fh fh;
+};
+
+__be32 nfsd4_ff_encode_getdeviceinfo(struct xdr_stream *xdr,
+ struct nfsd4_getdeviceinfo *gdp);
+__be32 nfsd4_ff_encode_layoutget(struct xdr_stream *xdr,
+ struct nfsd4_layoutget *lgp);
+
+#endif /* _NFSD_FLEXFILELAYOUTXDR_H */
diff --git a/fs/nfsd/nfs4layouts.c b/fs/nfsd/nfs4layouts.c
index 953c0755cb37..2be9602b0221 100644
--- a/fs/nfsd/nfs4layouts.c
+++ b/fs/nfsd/nfs4layouts.c
@@ -27,6 +27,9 @@ static const struct nfsd4_callback_ops nfsd4_cb_layout_ops;
static const struct lock_manager_operations nfsd4_layouts_lm_ops;
const struct nfsd4_layout_ops *nfsd4_layout_ops[LAYOUT_TYPE_MAX] = {
+#ifdef CONFIG_NFSD_FLEXFILELAYOUT
+ [LAYOUT_FLEX_FILES] = &ff_layout_ops,
+#endif
#ifdef CONFIG_NFSD_BLOCKLAYOUT
[LAYOUT_BLOCK_VOLUME] = &bl_layout_ops,
#endif
@@ -122,28 +125,35 @@ nfsd4_set_deviceid(struct nfsd4_deviceid *id, const struct svc_fh *fhp,
void nfsd4_setup_layout_type(struct svc_export *exp)
{
+#if defined(CONFIG_NFSD_BLOCKLAYOUT) || defined(CONFIG_NFSD_SCSILAYOUT)
struct super_block *sb = exp->ex_path.mnt->mnt_sb;
+#endif
if (!(exp->ex_flags & NFSEXP_PNFS))
return;
/*
- * Check if the file system supports exporting a block-like layout.
+ * If flex file is configured, use it by default. Otherwise
+ * check if the file system supports exporting a block-like layout.
* If the block device supports reservations prefer the SCSI layout,
* otherwise advertise the block layout.
*/
+#ifdef CONFIG_NFSD_FLEXFILELAYOUT
+ exp->ex_layout_types |= 1 << LAYOUT_FLEX_FILES;
+#endif
#ifdef CONFIG_NFSD_BLOCKLAYOUT
+ /* overwrite flex file layout selection if needed */
if (sb->s_export_op->get_uuid &&
sb->s_export_op->map_blocks &&
sb->s_export_op->commit_blocks)
- exp->ex_layout_type = LAYOUT_BLOCK_VOLUME;
+ exp->ex_layout_types |= 1 << LAYOUT_BLOCK_VOLUME;
#endif
#ifdef CONFIG_NFSD_SCSILAYOUT
/* overwrite block layout selection if needed */
if (sb->s_export_op->map_blocks &&
sb->s_export_op->commit_blocks &&
sb->s_bdev && sb->s_bdev->bd_disk->fops->pr_ops)
- exp->ex_layout_type = LAYOUT_SCSI;
+ exp->ex_layout_types |= 1 << LAYOUT_SCSI;
#endif
}
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index de1ff1d98bb1..1fb222752b2b 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -605,8 +605,7 @@ nfsd4_create(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
fh_init(&resfh, NFS4_FHSIZE);
- status = fh_verify(rqstp, &cstate->current_fh, S_IFDIR,
- NFSD_MAY_CREATE);
+ status = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, NFSD_MAY_NOP);
if (status)
return status;
@@ -1219,12 +1218,12 @@ nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
static const struct nfsd4_layout_ops *
nfsd4_layout_verify(struct svc_export *exp, unsigned int layout_type)
{
- if (!exp->ex_layout_type) {
+ if (!exp->ex_layout_types) {
dprintk("%s: export does not support pNFS\n", __func__);
return NULL;
}
- if (exp->ex_layout_type != layout_type) {
+ if (!(exp->ex_layout_types & (1 << layout_type))) {
dprintk("%s: layout type %d not supported\n",
__func__, layout_type);
return NULL;
@@ -1270,7 +1269,7 @@ nfsd4_getdeviceinfo(struct svc_rqst *rqstp,
nfserr = nfs_ok;
if (gdp->gd_maxcount != 0) {
nfserr = ops->proc_getdeviceinfo(exp->ex_path.mnt->mnt_sb,
- cstate->session->se_client, gdp);
+ rqstp, cstate->session->se_client, gdp);
}
gdp->gd_notify_types &= ops->notify_types;
@@ -2335,6 +2334,45 @@ static struct nfsd4_operation nfsd4_ops[] = {
},
};
+/**
+ * nfsd4_spo_must_allow - Determine if the compound op contains an
+ * operation that is allowed to be sent with machine credentials
+ *
+ * @rqstp: a pointer to the struct svc_rqst
+ *
+ * Checks to see if the compound contains a spo_must_allow op
+ * and confirms that it was sent with the proper machine creds.
+ */
+
+bool nfsd4_spo_must_allow(struct svc_rqst *rqstp)
+{
+ struct nfsd4_compoundres *resp = rqstp->rq_resp;
+ struct nfsd4_compoundargs *argp = rqstp->rq_argp;
+ struct nfsd4_op *this = &argp->ops[resp->opcnt - 1];
+ struct nfsd4_compound_state *cstate = &resp->cstate;
+ struct nfs4_op_map *allow = &cstate->clp->cl_spo_must_allow;
+ u32 opiter;
+
+ if (!cstate->minorversion)
+ return false;
+
+ if (cstate->spo_must_allowed == true)
+ return true;
+
+ opiter = resp->opcnt;
+ while (opiter < argp->opcnt) {
+ this = &argp->ops[opiter++];
+ if (test_bit(this->opnum, allow->u.longs) &&
+ cstate->clp->cl_mach_cred &&
+ nfsd4_mach_creds_match(cstate->clp, rqstp)) {
+ cstate->spo_must_allowed = true;
+ return true;
+ }
+ }
+ cstate->spo_must_allowed = false;
+ return false;
+}
+
int nfsd4_max_reply(struct svc_rqst *rqstp, struct nfsd4_op *op)
{
struct nfsd4_operation *opdesc;
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 70d0b9b33031..a204d7e109d4 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -1200,27 +1200,6 @@ free_ol_stateid_reaplist(struct list_head *reaplist)
}
}
-static void release_lockowner(struct nfs4_lockowner *lo)
-{
- struct nfs4_client *clp = lo->lo_owner.so_client;
- struct nfs4_ol_stateid *stp;
- struct list_head reaplist;
-
- INIT_LIST_HEAD(&reaplist);
-
- spin_lock(&clp->cl_lock);
- unhash_lockowner_locked(lo);
- while (!list_empty(&lo->lo_owner.so_stateids)) {
- stp = list_first_entry(&lo->lo_owner.so_stateids,
- struct nfs4_ol_stateid, st_perstateowner);
- WARN_ON(!unhash_lock_stateid(stp));
- put_ol_stateid_locked(stp, &reaplist);
- }
- spin_unlock(&clp->cl_lock);
- free_ol_stateid_reaplist(&reaplist);
- nfs4_put_stateowner(&lo->lo_owner);
-}
-
static void release_open_stateid_locks(struct nfs4_ol_stateid *open_stp,
struct list_head *reaplist)
{
@@ -1972,7 +1951,7 @@ static bool svc_rqst_integrity_protected(struct svc_rqst *rqstp)
service == RPC_GSS_SVC_PRIVACY;
}
-static bool mach_creds_match(struct nfs4_client *cl, struct svc_rqst *rqstp)
+bool nfsd4_mach_creds_match(struct nfs4_client *cl, struct svc_rqst *rqstp)
{
struct svc_cred *cr = &rqstp->rq_cred;
@@ -2388,6 +2367,22 @@ nfsd4_exchange_id(struct svc_rqst *rqstp,
switch (exid->spa_how) {
case SP4_MACH_CRED:
+ exid->spo_must_enforce[0] = 0;
+ exid->spo_must_enforce[1] = (
+ 1 << (OP_BIND_CONN_TO_SESSION - 32) |
+ 1 << (OP_EXCHANGE_ID - 32) |
+ 1 << (OP_CREATE_SESSION - 32) |
+ 1 << (OP_DESTROY_SESSION - 32) |
+ 1 << (OP_DESTROY_CLIENTID - 32));
+
+ exid->spo_must_allow[0] &= (1 << (OP_CLOSE) |
+ 1 << (OP_OPEN_DOWNGRADE) |
+ 1 << (OP_LOCKU) |
+ 1 << (OP_DELEGRETURN));
+
+ exid->spo_must_allow[1] &= (
+ 1 << (OP_TEST_STATEID - 32) |
+ 1 << (OP_FREE_STATEID - 32));
if (!svc_rqst_integrity_protected(rqstp)) {
status = nfserr_inval;
goto out_nolock;
@@ -2424,7 +2419,7 @@ nfsd4_exchange_id(struct svc_rqst *rqstp,
status = nfserr_inval;
goto out;
}
- if (!mach_creds_match(conf, rqstp)) {
+ if (!nfsd4_mach_creds_match(conf, rqstp)) {
status = nfserr_wrong_cred;
goto out;
}
@@ -2473,6 +2468,8 @@ out_new:
goto out;
}
new->cl_minorversion = cstate->minorversion;
+ new->cl_spo_must_allow.u.words[0] = exid->spo_must_allow[0];
+ new->cl_spo_must_allow.u.words[1] = exid->spo_must_allow[1];
gen_clid(new, nn);
add_to_unconfirmed(new);
@@ -2676,7 +2673,7 @@ nfsd4_create_session(struct svc_rqst *rqstp,
if (conf) {
status = nfserr_wrong_cred;
- if (!mach_creds_match(conf, rqstp))
+ if (!nfsd4_mach_creds_match(conf, rqstp))
goto out_free_conn;
cs_slot = &conf->cl_cs_slot;
status = check_slot_seqid(cr_ses->seqid, cs_slot->sl_seqid, 0);
@@ -2692,7 +2689,7 @@ nfsd4_create_session(struct svc_rqst *rqstp,
goto out_free_conn;
}
status = nfserr_wrong_cred;
- if (!mach_creds_match(unconf, rqstp))
+ if (!nfsd4_mach_creds_match(unconf, rqstp))
goto out_free_conn;
cs_slot = &unconf->cl_cs_slot;
status = check_slot_seqid(cr_ses->seqid, cs_slot->sl_seqid, 0);
@@ -2801,7 +2798,7 @@ __be32 nfsd4_bind_conn_to_session(struct svc_rqst *rqstp,
if (!session)
goto out_no_session;
status = nfserr_wrong_cred;
- if (!mach_creds_match(session->se_client, rqstp))
+ if (!nfsd4_mach_creds_match(session->se_client, rqstp))
goto out;
status = nfsd4_map_bcts_dir(&bcts->dir);
if (status)
@@ -2848,7 +2845,7 @@ nfsd4_destroy_session(struct svc_rqst *r,
if (!ses)
goto out_client_lock;
status = nfserr_wrong_cred;
- if (!mach_creds_match(ses->se_client, r))
+ if (!nfsd4_mach_creds_match(ses->se_client, r))
goto out_put_session;
status = mark_session_dead_locked(ses, 1 + ref_held_by_me);
if (status)
@@ -3087,7 +3084,7 @@ nfsd4_destroy_clientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *csta
status = nfserr_stale_clientid;
goto out;
}
- if (!mach_creds_match(clp, rqstp)) {
+ if (!nfsd4_mach_creds_match(clp, rqstp)) {
clp = NULL;
status = nfserr_wrong_cred;
goto out;
@@ -3112,7 +3109,7 @@ nfsd4_reclaim_complete(struct svc_rqst *rqstp, struct nfsd4_compound_state *csta
* We don't take advantage of the rca_one_fs case.
* That's OK, it's optional, we can safely ignore it.
*/
- return nfs_ok;
+ return nfs_ok;
}
status = nfserr_complete_already;
@@ -4906,6 +4903,32 @@ nfsd4_test_stateid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
return nfs_ok;
}
+static __be32
+nfsd4_free_lock_stateid(stateid_t *stateid, struct nfs4_stid *s)
+{
+ struct nfs4_ol_stateid *stp = openlockstateid(s);
+ __be32 ret;
+
+ mutex_lock(&stp->st_mutex);
+
+ ret = check_stateid_generation(stateid, &s->sc_stateid, 1);
+ if (ret)
+ goto out;
+
+ ret = nfserr_locks_held;
+ if (check_for_locks(stp->st_stid.sc_file,
+ lockowner(stp->st_stateowner)))
+ goto out;
+
+ release_lock_stateid(stp);
+ ret = nfs_ok;
+
+out:
+ mutex_unlock(&stp->st_mutex);
+ nfs4_put_stid(s);
+ return ret;
+}
+
__be32
nfsd4_free_stateid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
struct nfsd4_free_stateid *free_stateid)
@@ -4913,7 +4936,6 @@ nfsd4_free_stateid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
stateid_t *stateid = &free_stateid->fr_stateid;
struct nfs4_stid *s;
struct nfs4_delegation *dp;
- struct nfs4_ol_stateid *stp;
struct nfs4_client *cl = cstate->session->se_client;
__be32 ret = nfserr_bad_stateid;
@@ -4932,18 +4954,9 @@ nfsd4_free_stateid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
ret = nfserr_locks_held;
break;
case NFS4_LOCK_STID:
- ret = check_stateid_generation(stateid, &s->sc_stateid, 1);
- if (ret)
- break;
- stp = openlockstateid(s);
- ret = nfserr_locks_held;
- if (check_for_locks(stp->st_stid.sc_file,
- lockowner(stp->st_stateowner)))
- break;
- WARN_ON(!unhash_lock_stateid(stp));
+ atomic_inc(&s->sc_count);
spin_unlock(&cl->cl_lock);
- nfs4_put_stid(s);
- ret = nfs_ok;
+ ret = nfsd4_free_lock_stateid(stateid, s);
goto out;
case NFS4_REVOKED_DELEG_STID:
dp = delegstateid(s);
@@ -5510,7 +5523,7 @@ static __be32
lookup_or_create_lock_state(struct nfsd4_compound_state *cstate,
struct nfs4_ol_stateid *ost,
struct nfsd4_lock *lock,
- struct nfs4_ol_stateid **lst, bool *new)
+ struct nfs4_ol_stateid **plst, bool *new)
{
__be32 status;
struct nfs4_file *fi = ost->st_stid.sc_file;
@@ -5518,7 +5531,9 @@ lookup_or_create_lock_state(struct nfsd4_compound_state *cstate,
struct nfs4_client *cl = oo->oo_owner.so_client;
struct inode *inode = d_inode(cstate->current_fh.fh_dentry);
struct nfs4_lockowner *lo;
+ struct nfs4_ol_stateid *lst;
unsigned int strhashval;
+ bool hashed;
lo = find_lockowner_str(cl, &lock->lk_new_owner);
if (!lo) {
@@ -5534,12 +5549,27 @@ lookup_or_create_lock_state(struct nfsd4_compound_state *cstate,
goto out;
}
- *lst = find_or_create_lock_stateid(lo, fi, inode, ost, new);
- if (*lst == NULL) {
+retry:
+ lst = find_or_create_lock_stateid(lo, fi, inode, ost, new);
+ if (lst == NULL) {
status = nfserr_jukebox;
goto out;
}
+
+ mutex_lock(&lst->st_mutex);
+
+ /* See if it's still hashed to avoid race with FREE_STATEID */
+ spin_lock(&cl->cl_lock);
+ hashed = !list_empty(&lst->st_perfile);
+ spin_unlock(&cl->cl_lock);
+
+ if (!hashed) {
+ mutex_unlock(&lst->st_mutex);
+ nfs4_put_stid(&lst->st_stid);
+ goto retry;
+ }
status = nfs_ok;
+ *plst = lst;
out:
nfs4_put_stateowner(&lo->lo_owner);
return status;
@@ -5606,8 +5636,6 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
goto out;
status = lookup_or_create_lock_state(cstate, open_stp, lock,
&lock_stp, &new);
- if (status == nfs_ok)
- mutex_lock(&lock_stp->st_mutex);
} else {
status = nfs4_preprocess_seqid_op(cstate,
lock->lk_old_lock_seqid,
@@ -5945,6 +5973,7 @@ nfsd4_release_lockowner(struct svc_rqst *rqstp,
__be32 status;
struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id);
struct nfs4_client *clp;
+ LIST_HEAD (reaplist);
dprintk("nfsd4_release_lockowner clientid: (%08x/%08x):\n",
clid->cl_boot, clid->cl_id);
@@ -5975,9 +6004,23 @@ nfsd4_release_lockowner(struct svc_rqst *rqstp,
nfs4_get_stateowner(sop);
break;
}
+ if (!lo) {
+ spin_unlock(&clp->cl_lock);
+ return status;
+ }
+
+ unhash_lockowner_locked(lo);
+ while (!list_empty(&lo->lo_owner.so_stateids)) {
+ stp = list_first_entry(&lo->lo_owner.so_stateids,
+ struct nfs4_ol_stateid,
+ st_perstateowner);
+ WARN_ON(!unhash_lock_stateid(stp));
+ put_ol_stateid_locked(stp, &reaplist);
+ }
spin_unlock(&clp->cl_lock);
- if (lo)
- release_lockowner(lo);
+ free_ol_stateid_reaplist(&reaplist);
+ nfs4_put_stateowner(&lo->lo_owner);
+
return status;
}
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 9df898ba648f..0aa0236a1429 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -1299,16 +1299,14 @@ nfsd4_decode_exchange_id(struct nfsd4_compoundargs *argp,
break;
case SP4_MACH_CRED:
/* spo_must_enforce */
- READ_BUF(4);
- dummy = be32_to_cpup(p++);
- READ_BUF(dummy * 4);
- p += dummy;
-
+ status = nfsd4_decode_bitmap(argp,
+ exid->spo_must_enforce);
+ if (status)
+ goto out;
/* spo_must_allow */
- READ_BUF(4);
- dummy = be32_to_cpup(p++);
- READ_BUF(dummy * 4);
- p += dummy;
+ status = nfsd4_decode_bitmap(argp, exid->spo_must_allow);
+ if (status)
+ goto out;
break;
case SP4_SSV:
/* ssp_ops */
@@ -2164,22 +2162,20 @@ nfsd4_encode_aclname(struct xdr_stream *xdr, struct svc_rqst *rqstp,
}
static inline __be32
-nfsd4_encode_layout_type(struct xdr_stream *xdr, enum pnfs_layouttype layout_type)
+nfsd4_encode_layout_types(struct xdr_stream *xdr, u32 layout_types)
{
- __be32 *p;
+ __be32 *p;
+ unsigned long i = hweight_long(layout_types);
- if (layout_type) {
- p = xdr_reserve_space(xdr, 8);
- if (!p)
- return nfserr_resource;
- *p++ = cpu_to_be32(1);
- *p++ = cpu_to_be32(layout_type);
- } else {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- return nfserr_resource;
- *p++ = cpu_to_be32(0);
- }
+ 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;
}
@@ -2754,13 +2750,13 @@ out_acl:
}
#ifdef CONFIG_NFSD_PNFS
if (bmval1 & FATTR4_WORD1_FS_LAYOUT_TYPES) {
- status = nfsd4_encode_layout_type(xdr, exp->ex_layout_type);
+ status = nfsd4_encode_layout_types(xdr, exp->ex_layout_types);
if (status)
goto out;
}
if (bmval2 & FATTR4_WORD2_LAYOUT_TYPES) {
- status = nfsd4_encode_layout_type(xdr, exp->ex_layout_type);
+ status = nfsd4_encode_layout_types(xdr, exp->ex_layout_types);
if (status)
goto out;
}
@@ -3867,14 +3863,6 @@ nfsd4_encode_write(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_w
return nfserr;
}
-static const u32 nfs4_minimal_spo_must_enforce[2] = {
- [1] = 1 << (OP_BIND_CONN_TO_SESSION - 32) |
- 1 << (OP_EXCHANGE_ID - 32) |
- 1 << (OP_CREATE_SESSION - 32) |
- 1 << (OP_DESTROY_SESSION - 32) |
- 1 << (OP_DESTROY_CLIENTID - 32)
-};
-
static __be32
nfsd4_encode_exchange_id(struct nfsd4_compoundres *resp, __be32 nfserr,
struct nfsd4_exchange_id *exid)
@@ -3885,6 +3873,7 @@ nfsd4_encode_exchange_id(struct nfsd4_compoundres *resp, __be32 nfserr,
char *server_scope;
int major_id_sz;
int server_scope_sz;
+ int status = 0;
uint64_t minor_id = 0;
if (nfserr)
@@ -3913,18 +3902,20 @@ nfsd4_encode_exchange_id(struct nfsd4_compoundres *resp, __be32 nfserr,
case SP4_NONE:
break;
case SP4_MACH_CRED:
- /* spo_must_enforce, spo_must_allow */
- p = xdr_reserve_space(xdr, 16);
- if (!p)
- return nfserr_resource;
-
/* spo_must_enforce bitmap: */
- *p++ = cpu_to_be32(2);
- *p++ = cpu_to_be32(nfs4_minimal_spo_must_enforce[0]);
- *p++ = cpu_to_be32(nfs4_minimal_spo_must_enforce[1]);
- /* empty spo_must_allow bitmap: */
- *p++ = cpu_to_be32(0);
-
+ status = nfsd4_encode_bitmap(xdr,
+ exid->spo_must_enforce[0],
+ exid->spo_must_enforce[1],
+ exid->spo_must_enforce[2]);
+ if (status)
+ goto out;
+ /* spo_must_allow bitmap: */
+ status = nfsd4_encode_bitmap(xdr,
+ exid->spo_must_allow[0],
+ exid->spo_must_allow[1],
+ exid->spo_must_allow[2]);
+ if (status)
+ goto out;
break;
default:
WARN_ON_ONCE(1);
@@ -3951,6 +3942,8 @@ nfsd4_encode_exchange_id(struct nfsd4_compoundres *resp, __be32 nfserr,
/* Implementation id */
*p++ = cpu_to_be32(0); /* zero length nfs_impl_id4 array */
return 0;
+out:
+ return status;
}
static __be32
diff --git a/fs/nfsd/nfsd.h b/fs/nfsd/nfsd.h
index cf980523898b..9446849888d5 100644
--- a/fs/nfsd/nfsd.h
+++ b/fs/nfsd/nfsd.h
@@ -124,6 +124,7 @@ void nfs4_state_shutdown_net(struct net *net);
void nfs4_reset_lease(time_t leasetime);
int nfs4_reset_recoverydir(char *recdir);
char * nfs4_recoverydir(void);
+bool nfsd4_spo_must_allow(struct svc_rqst *rqstp);
#else
static inline int nfsd4_init_slabs(void) { return 0; }
static inline void nfsd4_free_slabs(void) { }
@@ -134,6 +135,10 @@ static inline void nfs4_state_shutdown_net(struct net *net) { }
static inline void nfs4_reset_lease(time_t leasetime) { }
static inline int nfs4_reset_recoverydir(char *recdir) { return 0; }
static inline char * nfs4_recoverydir(void) {return NULL; }
+static inline bool nfsd4_spo_must_allow(struct svc_rqst *rqstp)
+{
+ return false;
+}
#endif
/*
diff --git a/fs/nfsd/nfsfh.c b/fs/nfsd/nfsfh.c
index a8919444c460..cfe7500d5847 100644
--- a/fs/nfsd/nfsfh.c
+++ b/fs/nfsd/nfsfh.c
@@ -59,14 +59,20 @@ static int nfsd_acceptable(void *expv, struct dentry *dentry)
* the write call).
*/
static inline __be32
-nfsd_mode_check(struct svc_rqst *rqstp, umode_t mode, umode_t requested)
+nfsd_mode_check(struct svc_rqst *rqstp, struct dentry *dentry,
+ umode_t requested)
{
- mode &= S_IFMT;
+ umode_t mode = d_inode(dentry)->i_mode & S_IFMT;
if (requested == 0) /* the caller doesn't care */
return nfs_ok;
- if (mode == requested)
+ if (mode == requested) {
+ if (mode == S_IFDIR && !d_can_lookup(dentry)) {
+ WARN_ON_ONCE(1);
+ return nfserr_notdir;
+ }
return nfs_ok;
+ }
/*
* v4 has an error more specific than err_notdir which we should
* return in preference to err_notdir:
@@ -298,7 +304,7 @@ out:
* that it expects something not of the given type.
*
* @access is formed from the NFSD_MAY_* constants defined in
- * include/linux/nfsd/nfsd.h.
+ * fs/nfsd/vfs.h.
*/
__be32
fh_verify(struct svc_rqst *rqstp, struct svc_fh *fhp, umode_t type, int access)
@@ -340,7 +346,7 @@ fh_verify(struct svc_rqst *rqstp, struct svc_fh *fhp, umode_t type, int access)
if (error)
goto out;
- error = nfsd_mode_check(rqstp, d_inode(dentry)->i_mode, type);
+ error = nfsd_mode_check(rqstp, dentry, type);
if (error)
goto out;
@@ -533,7 +539,7 @@ fh_compose(struct svc_fh *fhp, struct svc_export *exp, struct dentry *dentry,
* the reference filehandle (if it is in the same export)
* or the export options.
*/
- set_version_and_fsid_type(fhp, exp, ref_fh);
+ set_version_and_fsid_type(fhp, exp, ref_fh);
if (ref_fh == fhp)
fh_put(ref_fh);
diff --git a/fs/nfsd/nfsproc.c b/fs/nfsd/nfsproc.c
index 4cd78ef4c95c..e9214768cde9 100644
--- a/fs/nfsd/nfsproc.c
+++ b/fs/nfsd/nfsproc.c
@@ -251,9 +251,6 @@ nfsd_proc_create(struct svc_rqst *rqstp, struct nfsd_createargs *argp,
/* Check for NFSD_MAY_WRITE in nfsd_create if necessary */
- nfserr = nfserr_acces;
- if (!argp->len)
- goto done;
nfserr = nfserr_exist;
if (isdotent(argp->name, argp->len))
goto done;
@@ -362,8 +359,8 @@ nfsd_proc_create(struct svc_rqst *rqstp, struct nfsd_createargs *argp,
nfserr = 0;
if (!inode) {
/* File doesn't exist. Create it and set attrs */
- nfserr = nfsd_create(rqstp, dirfhp, argp->name, argp->len,
- attr, type, rdev, newfhp);
+ nfserr = nfsd_create_locked(rqstp, dirfhp, argp->name,
+ argp->len, attr, type, rdev, newfhp);
} else if (type == S_IFREG) {
dprintk("nfsd: existing %s, valid=%x, size=%ld\n",
argp->name, attr->ia_valid, (long) attr->ia_size);
diff --git a/fs/nfsd/nfsxdr.c b/fs/nfsd/nfsxdr.c
index 79d964aa8079..41b468a6a90f 100644
--- a/fs/nfsd/nfsxdr.c
+++ b/fs/nfsd/nfsxdr.c
@@ -240,7 +240,7 @@ nfssvc_decode_diropargs(struct svc_rqst *rqstp, __be32 *p,
|| !(p = decode_filename(p, &args->name, &args->len)))
return 0;
- return xdr_argsize_check(rqstp, p);
+ return xdr_argsize_check(rqstp, p);
}
int
diff --git a/fs/nfsd/pnfs.h b/fs/nfsd/pnfs.h
index 7d073b9b1553..0c2a716e8741 100644
--- a/fs/nfsd/pnfs.h
+++ b/fs/nfsd/pnfs.h
@@ -21,6 +21,7 @@ struct nfsd4_layout_ops {
u32 notify_types;
__be32 (*proc_getdeviceinfo)(struct super_block *sb,
+ struct svc_rqst *rqstp,
struct nfs4_client *clp,
struct nfsd4_getdeviceinfo *gdevp);
__be32 (*encode_getdeviceinfo)(struct xdr_stream *xdr,
@@ -44,6 +45,9 @@ extern const struct nfsd4_layout_ops bl_layout_ops;
#ifdef CONFIG_NFSD_SCSILAYOUT
extern const struct nfsd4_layout_ops scsi_layout_ops;
#endif
+#ifdef CONFIG_NFSD_FLEXFILELAYOUT
+extern const struct nfsd4_layout_ops ff_layout_ops;
+#endif
__be32 nfsd4_preprocess_layout_stateid(struct svc_rqst *rqstp,
struct nfsd4_compound_state *cstate, stateid_t *stateid,
diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h
index 64053eadeb81..b95adf9a1595 100644
--- a/fs/nfsd/state.h
+++ b/fs/nfsd/state.h
@@ -345,6 +345,7 @@ struct nfs4_client {
u32 cl_exchange_flags;
/* number of rpc's in progress over an associated session: */
atomic_t cl_refcount;
+ struct nfs4_op_map cl_spo_must_allow;
/* for nfs41 callbacks */
/* We currently support a single back channel with a single slot */
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index 6fbd81ecb410..ff476e654b8f 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -1135,96 +1135,37 @@ nfsd_check_ignore_resizing(struct iattr *iap)
iap->ia_valid &= ~ATTR_SIZE;
}
-/*
- * Create a file (regular, directory, device, fifo); UNIX sockets
- * not yet implemented.
- * If the response fh has been verified, the parent directory should
- * already be locked. Note that the parent directory is left locked.
- *
- * N.B. Every call to nfsd_create needs an fh_put for _both_ fhp and resfhp
- */
+/* The parent directory should already be locked: */
__be32
-nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp,
+nfsd_create_locked(struct svc_rqst *rqstp, struct svc_fh *fhp,
char *fname, int flen, struct iattr *iap,
int type, dev_t rdev, struct svc_fh *resfhp)
{
- struct dentry *dentry, *dchild = NULL;
+ struct dentry *dentry, *dchild;
struct inode *dirp;
__be32 err;
__be32 err2;
int host_err;
- err = nfserr_perm;
- if (!flen)
- goto out;
- err = nfserr_exist;
- if (isdotent(fname, flen))
- goto out;
-
- err = fh_verify(rqstp, fhp, S_IFDIR, NFSD_MAY_CREATE);
- if (err)
- goto out;
-
dentry = fhp->fh_dentry;
dirp = d_inode(dentry);
- err = nfserr_notdir;
- if (!dirp->i_op->lookup)
- goto out;
- /*
- * Check whether the response file handle has been verified yet.
- * If it has, the parent directory should already be locked.
- */
- if (!resfhp->fh_dentry) {
- host_err = fh_want_write(fhp);
- if (host_err)
- goto out_nfserr;
-
- /* called from nfsd_proc_mkdir, or possibly nfsd3_proc_create */
- fh_lock_nested(fhp, I_MUTEX_PARENT);
- dchild = lookup_one_len(fname, dentry, flen);
- host_err = PTR_ERR(dchild);
- if (IS_ERR(dchild))
- goto out_nfserr;
- err = fh_compose(resfhp, fhp->fh_export, dchild, fhp);
- if (err)
- goto out;
- } else {
- /* called from nfsd_proc_create */
- dchild = dget(resfhp->fh_dentry);
- if (!fhp->fh_locked) {
- /* not actually possible */
- printk(KERN_ERR
- "nfsd_create: parent %pd2 not locked!\n",
+ dchild = dget(resfhp->fh_dentry);
+ if (!fhp->fh_locked) {
+ WARN_ONCE(1, "nfsd_create: parent %pd2 not locked!\n",
dentry);
- err = nfserr_io;
- goto out;
- }
- }
- /*
- * Make sure the child dentry is still negative ...
- */
- err = nfserr_exist;
- if (d_really_is_positive(dchild)) {
- dprintk("nfsd_create: dentry %pd/%pd not negative!\n",
- dentry, dchild);
- goto out;
+ err = nfserr_io;
+ goto out;
}
+ err = nfsd_permission(rqstp, fhp->fh_export, dentry, NFSD_MAY_CREATE);
+ if (err)
+ goto out;
+
if (!(iap->ia_valid & ATTR_MODE))
iap->ia_mode = 0;
iap->ia_mode = (iap->ia_mode & S_IALLUGO) | type;
- err = nfserr_inval;
- if (!S_ISREG(type) && !S_ISDIR(type) && !special_file(type)) {
- printk(KERN_WARNING "nfsd: bad file type %o in nfsd_create\n",
- type);
- goto out;
- }
-
- /*
- * Get the dir op function pointer.
- */
err = 0;
host_err = 0;
switch (type) {
@@ -1242,6 +1183,10 @@ nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp,
case S_IFSOCK:
host_err = vfs_mknod(dirp, dchild, iap->ia_mode, rdev);
break;
+ default:
+ printk(KERN_WARNING "nfsd: bad file type %o in nfsd_create\n",
+ type);
+ host_err = -EINVAL;
}
if (host_err < 0)
goto out_nfserr;
@@ -1251,7 +1196,7 @@ nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp,
/*
* nfsd_create_setattr already committed the child. Transactional
* filesystems had a chance to commit changes for both parent and
- * child * simultaneously making the following commit_metadata a
+ * child simultaneously making the following commit_metadata a
* noop.
*/
err2 = nfserrno(commit_metadata(fhp));
@@ -1263,8 +1208,7 @@ nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp,
if (!err)
err = fh_update(resfhp);
out:
- if (dchild && !IS_ERR(dchild))
- dput(dchild);
+ dput(dchild);
return err;
out_nfserr:
@@ -1272,6 +1216,53 @@ out_nfserr:
goto out;
}
+/*
+ * Create a filesystem object (regular, directory, special).
+ * Note that the parent directory is left locked.
+ *
+ * N.B. Every call to nfsd_create needs an fh_put for _both_ fhp and resfhp
+ */
+__be32
+nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp,
+ char *fname, int flen, struct iattr *iap,
+ int type, dev_t rdev, struct svc_fh *resfhp)
+{
+ struct dentry *dentry, *dchild = NULL;
+ struct inode *dirp;
+ __be32 err;
+ int host_err;
+
+ if (isdotent(fname, flen))
+ return nfserr_exist;
+
+ err = fh_verify(rqstp, fhp, S_IFDIR, NFSD_MAY_NOP);
+ if (err)
+ return err;
+
+ dentry = fhp->fh_dentry;
+ dirp = d_inode(dentry);
+
+ host_err = fh_want_write(fhp);
+ if (host_err)
+ return nfserrno(host_err);
+
+ fh_lock_nested(fhp, I_MUTEX_PARENT);
+ dchild = lookup_one_len(fname, dentry, flen);
+ host_err = PTR_ERR(dchild);
+ if (IS_ERR(dchild))
+ return nfserrno(host_err);
+ err = fh_compose(resfhp, fhp->fh_export, dchild, fhp);
+ /*
+ * We unconditionally drop our ref to dchild as fh_compose will have
+ * already grabbed its own ref for it.
+ */
+ dput(dchild);
+ if (err)
+ return err;
+ return nfsd_create_locked(rqstp, fhp, fname, flen, iap, type,
+ rdev, resfhp);
+}
+
#ifdef CONFIG_NFSD_V3
/*
@@ -1304,12 +1295,6 @@ do_nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp,
dentry = fhp->fh_dentry;
dirp = d_inode(dentry);
- /* Get all the sanity checks out of the way before
- * we lock the parent. */
- err = nfserr_notdir;
- if (!dirp->i_op->lookup)
- goto out;
-
host_err = fh_want_write(fhp);
if (host_err)
goto out_nfserr;
diff --git a/fs/nfsd/vfs.h b/fs/nfsd/vfs.h
index 2d573ec057f8..3cbb1b33777b 100644
--- a/fs/nfsd/vfs.h
+++ b/fs/nfsd/vfs.h
@@ -59,6 +59,9 @@ __be32 nfsd4_vfs_fallocate(struct svc_rqst *, struct svc_fh *,
__be32 nfsd4_clone_file_range(struct file *, u64, struct file *,
u64, u64);
#endif /* CONFIG_NFSD_V4 */
+__be32 nfsd_create_locked(struct svc_rqst *, struct svc_fh *,
+ char *name, int len, struct iattr *attrs,
+ int type, dev_t rdev, struct svc_fh *res);
__be32 nfsd_create(struct svc_rqst *, struct svc_fh *,
char *name, int len, struct iattr *attrs,
int type, dev_t rdev, struct svc_fh *res);
diff --git a/fs/nfsd/xdr4.h b/fs/nfsd/xdr4.h
index d9554813e58a..beea0c5edc51 100644
--- a/fs/nfsd/xdr4.h
+++ b/fs/nfsd/xdr4.h
@@ -59,6 +59,7 @@ struct nfsd4_compound_state {
struct nfsd4_session *session;
struct nfsd4_slot *slot;
int data_offset;
+ bool spo_must_allowed;
size_t iovlen;
u32 minorversion;
__be32 status;
@@ -403,6 +404,8 @@ struct nfsd4_exchange_id {
clientid_t clientid;
u32 seqid;
int spa_how;
+ u32 spo_must_enforce[3];
+ u32 spo_must_allow[3];
};
struct nfsd4_sequence {
@@ -654,6 +657,8 @@ set_change_info(struct nfsd4_change_info *cinfo, struct svc_fh *fhp)
}
+
+bool nfsd4_mach_creds_match(struct nfs4_client *cl, struct svc_rqst *rqstp);
int nfs4svc_encode_voidres(struct svc_rqst *, __be32 *, void *);
int nfs4svc_decode_compoundargs(struct svc_rqst *, __be32 *,
struct nfsd4_compoundargs *);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 02:25:37 +0000