#include "state.h"
#include "cache.h"
#include "netns.h"
+#include "pnfs.h"
#ifdef CONFIG_NFSD_V4_SECURITY_LABEL
#include <linux/security.h>
return ret;
}
+/*
+ * We require the high 32 bits of 'seconds' to be 0, and
+ * we ignore all 32 bits of 'nseconds'.
+ */
+static __be32
+nfsd4_decode_time(struct nfsd4_compoundargs *argp, struct timespec *tv)
+{
+ DECODE_HEAD;
+ u64 sec;
+
+ READ_BUF(12);
+ p = xdr_decode_hyper(p, &sec);
+ tv->tv_sec = sec;
+ tv->tv_nsec = be32_to_cpup(p++);
+ if (tv->tv_nsec >= (u32)1000000000)
+ return nfserr_inval;
+
+ DECODE_TAIL;
+}
+
static __be32
nfsd4_decode_bitmap(struct nfsd4_compoundargs *argp, u32 *bmval)
{
{
int expected_len, len = 0;
u32 dummy32;
- u64 sec;
char *buf;
DECODE_HEAD;
dummy32 = be32_to_cpup(p++);
switch (dummy32) {
case NFS4_SET_TO_CLIENT_TIME:
- /* We require the high 32 bits of 'seconds' to be 0, and we ignore
- all 32 bits of 'nseconds'. */
- READ_BUF(12);
len += 12;
- p = xdr_decode_hyper(p, &sec);
- iattr->ia_atime.tv_sec = (time_t)sec;
- iattr->ia_atime.tv_nsec = be32_to_cpup(p++);
- if (iattr->ia_atime.tv_nsec >= (u32)1000000000)
- return nfserr_inval;
+ status = nfsd4_decode_time(argp, &iattr->ia_atime);
+ if (status)
+ return status;
iattr->ia_valid |= (ATTR_ATIME | ATTR_ATIME_SET);
break;
case NFS4_SET_TO_SERVER_TIME:
dummy32 = be32_to_cpup(p++);
switch (dummy32) {
case NFS4_SET_TO_CLIENT_TIME:
- /* We require the high 32 bits of 'seconds' to be 0, and we ignore
- all 32 bits of 'nseconds'. */
- READ_BUF(12);
len += 12;
- p = xdr_decode_hyper(p, &sec);
- iattr->ia_mtime.tv_sec = sec;
- iattr->ia_mtime.tv_nsec = be32_to_cpup(p++);
- if (iattr->ia_mtime.tv_nsec >= (u32)1000000000)
- return nfserr_inval;
+ status = nfsd4_decode_time(argp, &iattr->ia_mtime);
+ if (status)
+ return status;
iattr->ia_valid |= (ATTR_MTIME | ATTR_MTIME_SET);
break;
case NFS4_SET_TO_SERVER_TIME:
DECODE_TAIL;
}
+#ifdef CONFIG_NFSD_PNFS
+static __be32
+nfsd4_decode_getdeviceinfo(struct nfsd4_compoundargs *argp,
+ struct nfsd4_getdeviceinfo *gdev)
+{
+ DECODE_HEAD;
+ u32 num, i;
+
+ READ_BUF(sizeof(struct nfsd4_deviceid) + 3 * 4);
+ COPYMEM(&gdev->gd_devid, sizeof(struct nfsd4_deviceid));
+ gdev->gd_layout_type = be32_to_cpup(p++);
+ gdev->gd_maxcount = be32_to_cpup(p++);
+ num = be32_to_cpup(p++);
+ if (num) {
+ READ_BUF(4 * num);
+ gdev->gd_notify_types = be32_to_cpup(p++);
+ for (i = 1; i < num; i++) {
+ if (be32_to_cpup(p++)) {
+ status = nfserr_inval;
+ goto out;
+ }
+ }
+ }
+ DECODE_TAIL;
+}
+
+static __be32
+nfsd4_decode_layoutget(struct nfsd4_compoundargs *argp,
+ struct nfsd4_layoutget *lgp)
+{
+ DECODE_HEAD;
+
+ READ_BUF(36);
+ lgp->lg_signal = be32_to_cpup(p++);
+ lgp->lg_layout_type = be32_to_cpup(p++);
+ lgp->lg_seg.iomode = be32_to_cpup(p++);
+ p = xdr_decode_hyper(p, &lgp->lg_seg.offset);
+ p = xdr_decode_hyper(p, &lgp->lg_seg.length);
+ p = xdr_decode_hyper(p, &lgp->lg_minlength);
+ nfsd4_decode_stateid(argp, &lgp->lg_sid);
+ READ_BUF(4);
+ lgp->lg_maxcount = be32_to_cpup(p++);
+
+ DECODE_TAIL;
+}
+
+static __be32
+nfsd4_decode_layoutcommit(struct nfsd4_compoundargs *argp,
+ struct nfsd4_layoutcommit *lcp)
+{
+ DECODE_HEAD;
+ u32 timechange;
+
+ READ_BUF(20);
+ p = xdr_decode_hyper(p, &lcp->lc_seg.offset);
+ p = xdr_decode_hyper(p, &lcp->lc_seg.length);
+ lcp->lc_reclaim = be32_to_cpup(p++);
+ nfsd4_decode_stateid(argp, &lcp->lc_sid);
+ READ_BUF(4);
+ lcp->lc_newoffset = be32_to_cpup(p++);
+ if (lcp->lc_newoffset) {
+ READ_BUF(8);
+ p = xdr_decode_hyper(p, &lcp->lc_last_wr);
+ } else
+ lcp->lc_last_wr = 0;
+ READ_BUF(4);
+ timechange = be32_to_cpup(p++);
+ if (timechange) {
+ status = nfsd4_decode_time(argp, &lcp->lc_mtime);
+ if (status)
+ return status;
+ } else {
+ lcp->lc_mtime.tv_nsec = UTIME_NOW;
+ }
+ READ_BUF(8);
+ lcp->lc_layout_type = be32_to_cpup(p++);
+
+ /*
+ * Save the layout update in XDR format and let the layout driver deal
+ * with it later.
+ */
+ lcp->lc_up_len = be32_to_cpup(p++);
+ if (lcp->lc_up_len > 0) {
+ READ_BUF(lcp->lc_up_len);
+ READMEM(lcp->lc_up_layout, lcp->lc_up_len);
+ }
+
+ DECODE_TAIL;
+}
+
+static __be32
+nfsd4_decode_layoutreturn(struct nfsd4_compoundargs *argp,
+ struct nfsd4_layoutreturn *lrp)
+{
+ DECODE_HEAD;
+
+ READ_BUF(16);
+ lrp->lr_reclaim = be32_to_cpup(p++);
+ lrp->lr_layout_type = be32_to_cpup(p++);
+ lrp->lr_seg.iomode = be32_to_cpup(p++);
+ lrp->lr_return_type = be32_to_cpup(p++);
+ if (lrp->lr_return_type == RETURN_FILE) {
+ READ_BUF(16);
+ p = xdr_decode_hyper(p, &lrp->lr_seg.offset);
+ p = xdr_decode_hyper(p, &lrp->lr_seg.length);
+ nfsd4_decode_stateid(argp, &lrp->lr_sid);
+ READ_BUF(4);
+ lrp->lrf_body_len = be32_to_cpup(p++);
+ if (lrp->lrf_body_len > 0) {
+ READ_BUF(lrp->lrf_body_len);
+ READMEM(lrp->lrf_body, lrp->lrf_body_len);
+ }
+ } else {
+ lrp->lr_seg.offset = 0;
+ lrp->lr_seg.length = NFS4_MAX_UINT64;
+ }
+
+ DECODE_TAIL;
+}
+#endif /* CONFIG_NFSD_PNFS */
+
static __be32
nfsd4_decode_fallocate(struct nfsd4_compoundargs *argp,
struct nfsd4_fallocate *fallocate)
[OP_DESTROY_SESSION] = (nfsd4_dec)nfsd4_decode_destroy_session,
[OP_FREE_STATEID] = (nfsd4_dec)nfsd4_decode_free_stateid,
[OP_GET_DIR_DELEGATION] = (nfsd4_dec)nfsd4_decode_notsupp,
+#ifdef CONFIG_NFSD_PNFS
+ [OP_GETDEVICEINFO] = (nfsd4_dec)nfsd4_decode_getdeviceinfo,
+ [OP_GETDEVICELIST] = (nfsd4_dec)nfsd4_decode_notsupp,
+ [OP_LAYOUTCOMMIT] = (nfsd4_dec)nfsd4_decode_layoutcommit,
+ [OP_LAYOUTGET] = (nfsd4_dec)nfsd4_decode_layoutget,
+ [OP_LAYOUTRETURN] = (nfsd4_dec)nfsd4_decode_layoutreturn,
+#else
[OP_GETDEVICEINFO] = (nfsd4_dec)nfsd4_decode_notsupp,
[OP_GETDEVICELIST] = (nfsd4_dec)nfsd4_decode_notsupp,
[OP_LAYOUTCOMMIT] = (nfsd4_dec)nfsd4_decode_notsupp,
[OP_LAYOUTGET] = (nfsd4_dec)nfsd4_decode_notsupp,
[OP_LAYOUTRETURN] = (nfsd4_dec)nfsd4_decode_notsupp,
+#endif
[OP_SECINFO_NO_NAME] = (nfsd4_dec)nfsd4_decode_secinfo_no_name,
[OP_SEQUENCE] = (nfsd4_dec)nfsd4_decode_sequence,
[OP_SET_SSV] = (nfsd4_dec)nfsd4_decode_notsupp,
get_parent_attributes(exp, &stat);
p = xdr_encode_hyper(p, stat.ino);
}
+#ifdef CONFIG_NFSD_PNFS
+ if ((bmval1 & FATTR4_WORD1_FS_LAYOUT_TYPES) ||
+ (bmval2 & FATTR4_WORD2_LAYOUT_TYPES)) {
+ if (exp->ex_layout_type) {
+ p = xdr_reserve_space(xdr, 8);
+ if (!p)
+ goto out_resource;
+ *p++ = cpu_to_be32(1);
+ *p++ = cpu_to_be32(exp->ex_layout_type);
+ } else {
+ p = xdr_reserve_space(xdr, 4);
+ if (!p)
+ goto out_resource;
+ *p++ = cpu_to_be32(0);
+ }
+ }
+
+ 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_SECURITY_LABEL) {
status = nfsd4_encode_security_label(xdr, rqstp, context,
contextlen);
if (entry_bytes > cd->rd_maxcount)
goto fail;
cd->rd_maxcount -= entry_bytes;
- if (!cd->rd_dircount)
- goto fail;
/*
* RFC 3530 14.2.24 describes rd_dircount as only a "hint", so
* let's always let through the first entry, at least:
*/
- name_and_cookie = 4 * XDR_QUADLEN(namlen) + 8;
+ if (!cd->rd_dircount)
+ goto fail;
+ name_and_cookie = 4 + 4 * XDR_QUADLEN(namlen) + 8;
if (name_and_cookie > cd->rd_dircount && cd->cookie_offset)
goto fail;
cd->rd_dircount -= min(cd->rd_dircount, name_and_cookie);
+
cd->cookie_offset = cookie_offset;
skip_entry:
cd->common.err = nfs_ok;
return nfserr;
}
+#ifdef CONFIG_NFSD_PNFS
+static __be32
+nfsd4_encode_getdeviceinfo(struct nfsd4_compoundres *resp, __be32 nfserr,
+ struct nfsd4_getdeviceinfo *gdev)
+{
+ struct xdr_stream *xdr = &resp->xdr;
+ const struct nfsd4_layout_ops *ops =
+ nfsd4_layout_ops[gdev->gd_layout_type];
+ u32 starting_len = xdr->buf->len, needed_len;
+ __be32 *p;
+
+ dprintk("%s: err %d\n", __func__, nfserr);
+ if (nfserr)
+ goto out;
+
+ nfserr = nfserr_resource;
+ p = xdr_reserve_space(xdr, 4);
+ if (!p)
+ goto out;
+
+ *p++ = cpu_to_be32(gdev->gd_layout_type);
+
+ /* If maxcount is 0 then just update notifications */
+ if (gdev->gd_maxcount != 0) {
+ nfserr = ops->encode_getdeviceinfo(xdr, gdev);
+ if (nfserr) {
+ /*
+ * 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.
+ */
+ if (xdr->buf->len + 4 > gdev->gd_maxcount)
+ goto toosmall;
+ goto out;
+ }
+ }
+
+ nfserr = nfserr_resource;
+ if (gdev->gd_notify_types) {
+ p = xdr_reserve_space(xdr, 4 + 4);
+ if (!p)
+ goto out;
+ *p++ = cpu_to_be32(1); /* bitmap length */
+ *p++ = cpu_to_be32(gdev->gd_notify_types);
+ } else {
+ p = xdr_reserve_space(xdr, 4);
+ if (!p)
+ goto out;
+ *p++ = 0;
+ }
+
+ nfserr = 0;
+out:
+ kfree(gdev->gd_device);
+ dprintk("%s: done: %d\n", __func__, be32_to_cpu(nfserr));
+ return nfserr;
+
+toosmall:
+ dprintk("%s: maxcount too small\n", __func__);
+ needed_len = xdr->buf->len + 4 /* notifications */;
+ xdr_truncate_encode(xdr, starting_len);
+ p = xdr_reserve_space(xdr, 4);
+ if (!p) {
+ nfserr = nfserr_resource;
+ } else {
+ *p++ = cpu_to_be32(needed_len);
+ nfserr = nfserr_toosmall;
+ }
+ goto out;
+}
+
+static __be32
+nfsd4_encode_layoutget(struct nfsd4_compoundres *resp, __be32 nfserr,
+ struct nfsd4_layoutget *lgp)
+{
+ struct xdr_stream *xdr = &resp->xdr;
+ const struct nfsd4_layout_ops *ops =
+ nfsd4_layout_ops[lgp->lg_layout_type];
+ __be32 *p;
+
+ dprintk("%s: err %d\n", __func__, nfserr);
+ if (nfserr)
+ goto out;
+
+ nfserr = nfserr_resource;
+ p = xdr_reserve_space(xdr, 36 + sizeof(stateid_opaque_t));
+ if (!p)
+ goto out;
+
+ *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));
+
+ *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);
+
+ nfserr = ops->encode_layoutget(xdr, lgp);
+out:
+ kfree(lgp->lg_content);
+ return nfserr;
+}
+
+static __be32
+nfsd4_encode_layoutcommit(struct nfsd4_compoundres *resp, __be32 nfserr,
+ struct nfsd4_layoutcommit *lcp)
+{
+ struct xdr_stream *xdr = &resp->xdr;
+ __be32 *p;
+
+ if (nfserr)
+ return nfserr;
+
+ 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 nfs_ok;
+}
+
+static __be32
+nfsd4_encode_layoutreturn(struct nfsd4_compoundres *resp, __be32 nfserr,
+ struct nfsd4_layoutreturn *lrp)
+{
+ struct xdr_stream *xdr = &resp->xdr;
+ __be32 *p;
+
+ if (nfserr)
+ return nfserr;
+
+ p = xdr_reserve_space(xdr, 4);
+ if (!p)
+ return nfserr_resource;
+ *p++ = cpu_to_be32(lrp->lrs_present);
+ if (lrp->lrs_present)
+ nfsd4_encode_stateid(xdr, &lrp->lr_sid);
+ return nfs_ok;
+}
+#endif /* CONFIG_NFSD_PNFS */
+
static __be32
nfsd4_encode_seek(struct nfsd4_compoundres *resp, __be32 nfserr,
struct nfsd4_seek *seek)
[OP_DESTROY_SESSION] = (nfsd4_enc)nfsd4_encode_noop,
[OP_FREE_STATEID] = (nfsd4_enc)nfsd4_encode_noop,
[OP_GET_DIR_DELEGATION] = (nfsd4_enc)nfsd4_encode_noop,
+#ifdef CONFIG_NFSD_PNFS
+ [OP_GETDEVICEINFO] = (nfsd4_enc)nfsd4_encode_getdeviceinfo,
+ [OP_GETDEVICELIST] = (nfsd4_enc)nfsd4_encode_noop,
+ [OP_LAYOUTCOMMIT] = (nfsd4_enc)nfsd4_encode_layoutcommit,
+ [OP_LAYOUTGET] = (nfsd4_enc)nfsd4_encode_layoutget,
+ [OP_LAYOUTRETURN] = (nfsd4_enc)nfsd4_encode_layoutreturn,
+#else
[OP_GETDEVICEINFO] = (nfsd4_enc)nfsd4_encode_noop,
[OP_GETDEVICELIST] = (nfsd4_enc)nfsd4_encode_noop,
[OP_LAYOUTCOMMIT] = (nfsd4_enc)nfsd4_encode_noop,
[OP_LAYOUTGET] = (nfsd4_enc)nfsd4_encode_noop,
[OP_LAYOUTRETURN] = (nfsd4_enc)nfsd4_encode_noop,
+#endif
[OP_SECINFO_NO_NAME] = (nfsd4_enc)nfsd4_encode_secinfo_no_name,
[OP_SEQUENCE] = (nfsd4_enc)nfsd4_encode_sequence,
[OP_SET_SSV] = (nfsd4_enc)nfsd4_encode_noop,
projects / deliverable / linux.git / blobdiff