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path: root/fs/nfs/callback_xdr.c
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Diffstat (limited to 'fs/nfs/callback_xdr.c')
-rw-r--r--fs/nfs/callback_xdr.c89
1 files changed, 65 insertions, 24 deletions
diff --git a/fs/nfs/callback_xdr.c b/fs/nfs/callback_xdr.c
index a67c41ec545f..4254ba3ee7c5 100644
--- a/fs/nfs/callback_xdr.c
+++ b/fs/nfs/callback_xdr.c
@@ -25,8 +25,9 @@
#define CB_OP_GETATTR_BITMAP_MAXSZ (4 * 4) // bitmap length, 3 bitmaps
#define CB_OP_GETATTR_RES_MAXSZ (CB_OP_HDR_RES_MAXSZ + \
CB_OP_GETATTR_BITMAP_MAXSZ + \
- /* change, size, ctime, mtime */\
- (2 + 2 + 3 + 3) * 4)
+ /* change, size, atime, ctime,
+ * mtime, deleg_atime, deleg_mtime */\
+ (2 + 2 + 3 + 3 + 3 + 3 + 3) * 4)
#define CB_OP_RECALL_RES_MAXSZ (CB_OP_HDR_RES_MAXSZ)
#if defined(CONFIG_NFS_V4_1)
@@ -117,7 +118,9 @@ static __be32 decode_bitmap(struct xdr_stream *xdr, uint32_t *bitmap)
if (likely(attrlen > 0))
bitmap[0] = ntohl(*p++);
if (attrlen > 1)
- bitmap[1] = ntohl(*p);
+ bitmap[1] = ntohl(*p++);
+ if (attrlen > 2)
+ bitmap[2] = ntohl(*p);
return 0;
}
@@ -258,11 +261,9 @@ __be32 decode_devicenotify_args(struct svc_rqst *rqstp,
void *argp)
{
struct cb_devicenotifyargs *args = argp;
+ uint32_t tmp, n, i;
__be32 *p;
__be32 status = 0;
- u32 tmp;
- int n, i;
- args->ndevs = 0;
/* Num of device notifications */
p = xdr_inline_decode(xdr, sizeof(uint32_t));
@@ -271,12 +272,8 @@ __be32 decode_devicenotify_args(struct svc_rqst *rqstp,
goto out;
}
n = ntohl(*p++);
- if (n <= 0)
- goto out;
- if (n > ULONG_MAX / sizeof(*args->devs)) {
- status = htonl(NFS4ERR_BADXDR);
+ if (n == 0)
goto out;
- }
args->devs = kmalloc_array(n, sizeof(*args->devs), GFP_KERNEL);
if (!args->devs) {
@@ -330,19 +327,21 @@ __be32 decode_devicenotify_args(struct svc_rqst *rqstp,
dev->cbd_immediate = 0;
}
- args->ndevs++;
-
dprintk("%s: type %d layout 0x%x immediate %d\n",
__func__, dev->cbd_notify_type, dev->cbd_layout_type,
dev->cbd_immediate);
}
+ args->ndevs = n;
+ dprintk("%s: ndevs %d\n", __func__, args->ndevs);
+ return 0;
+err:
+ kfree(args->devs);
out:
+ args->devs = NULL;
+ args->ndevs = 0;
dprintk("%s: status %d ndevs %d\n",
__func__, ntohl(status), args->ndevs);
return status;
-err:
- kfree(args->devs);
- goto out;
}
static __be32 decode_sessionid(struct xdr_stream *xdr,
@@ -376,6 +375,8 @@ static __be32 decode_rc_list(struct xdr_stream *xdr,
rc_list->rcl_nrefcalls = ntohl(*p++);
if (rc_list->rcl_nrefcalls) {
+ if (unlikely(rc_list->rcl_nrefcalls > xdr->buf->len))
+ goto out;
p = xdr_inline_decode(xdr,
rc_list->rcl_nrefcalls * 2 * sizeof(uint32_t));
if (unlikely(p == NULL))
@@ -449,7 +450,7 @@ static __be32 decode_recallany_args(struct svc_rqst *rqstp,
void *argp)
{
struct cb_recallanyargs *args = argp;
- uint32_t bitmap[2];
+ uint32_t bitmap[3];
__be32 *p, status;
p = xdr_inline_decode(xdr, 4);
@@ -639,6 +640,13 @@ static __be32 encode_attr_time(struct xdr_stream *xdr, const struct timespec64 *
return 0;
}
+static __be32 encode_attr_atime(struct xdr_stream *xdr, const uint32_t *bitmap, const struct timespec64 *time)
+{
+ if (!(bitmap[1] & FATTR4_WORD1_TIME_ACCESS))
+ return 0;
+ return encode_attr_time(xdr,time);
+}
+
static __be32 encode_attr_ctime(struct xdr_stream *xdr, const uint32_t *bitmap, const struct timespec64 *time)
{
if (!(bitmap[1] & FATTR4_WORD1_TIME_METADATA))
@@ -653,6 +661,24 @@ static __be32 encode_attr_mtime(struct xdr_stream *xdr, const uint32_t *bitmap,
return encode_attr_time(xdr,time);
}
+static __be32 encode_attr_delegatime(struct xdr_stream *xdr,
+ const uint32_t *bitmap,
+ const struct timespec64 *time)
+{
+ if (!(bitmap[2] & FATTR4_WORD2_TIME_DELEG_ACCESS))
+ return 0;
+ return encode_attr_time(xdr,time);
+}
+
+static __be32 encode_attr_delegmtime(struct xdr_stream *xdr,
+ const uint32_t *bitmap,
+ const struct timespec64 *time)
+{
+ if (!(bitmap[2] & FATTR4_WORD2_TIME_DELEG_MODIFY))
+ return 0;
+ return encode_attr_time(xdr,time);
+}
+
static __be32 encode_compound_hdr_res(struct xdr_stream *xdr, struct cb_compound_hdr_res *hdr)
{
__be32 status;
@@ -703,10 +729,19 @@ static __be32 encode_getattr_res(struct svc_rqst *rqstp, struct xdr_stream *xdr,
status = encode_attr_size(xdr, res->bitmap, res->size);
if (unlikely(status != 0))
goto out;
+ status = encode_attr_atime(xdr, res->bitmap, &res->atime);
+ if (unlikely(status != 0))
+ goto out;
status = encode_attr_ctime(xdr, res->bitmap, &res->ctime);
if (unlikely(status != 0))
goto out;
status = encode_attr_mtime(xdr, res->bitmap, &res->mtime);
+ if (unlikely(status != 0))
+ goto out;
+ status = encode_attr_delegatime(xdr, res->bitmap, &res->atime);
+ if (unlikely(status != 0))
+ goto out;
+ status = encode_attr_delegmtime(xdr, res->bitmap, &res->mtime);
*savep = htonl((unsigned int)((char *)xdr->p - (char *)(savep+1)));
out:
return status;
@@ -949,6 +984,7 @@ static __be32 nfs4_callback_compound(struct svc_rqst *rqstp)
nfs_put_client(cps.clp);
goto out_invalidcred;
}
+ svc_xprt_set_valid(rqstp->rq_xprt);
}
cps.minorversion = hdr_arg.minorversion;
@@ -971,6 +1007,11 @@ static __be32 nfs4_callback_compound(struct svc_rqst *rqstp)
nops--;
}
+ if (svc_is_backchannel(rqstp) && cps.clp) {
+ rqstp->bc_to_initval = cps.clp->cl_rpcclient->cl_timeout->to_initval;
+ rqstp->bc_to_retries = cps.clp->cl_rpcclient->cl_timeout->to_retries;
+ }
+
*hdr_res.status = status;
*hdr_res.nops = htonl(nops);
nfs4_cb_free_slot(&cps);
@@ -984,14 +1025,11 @@ out_invalidcred:
}
static int
-nfs_callback_dispatch(struct svc_rqst *rqstp, __be32 *statp)
+nfs_callback_dispatch(struct svc_rqst *rqstp)
{
const struct svc_procedure *procp = rqstp->rq_procinfo;
- svcxdr_init_decode(rqstp);
- svcxdr_init_encode(rqstp);
-
- *statp = procp->pc_func(rqstp);
+ *rqstp->rq_accept_statp = procp->pc_func(rqstp);
return 1;
}
@@ -1069,13 +1107,15 @@ static const struct svc_procedure nfs4_callback_procedures1[] = {
.pc_func = nfs4_callback_compound,
.pc_encode = nfs4_encode_void,
.pc_argsize = 256,
+ .pc_argzero = 256,
.pc_ressize = 256,
.pc_xdrressize = NFS4_CALLBACK_BUFSIZE,
.pc_name = "COMPOUND",
}
};
-static unsigned int nfs4_callback_count1[ARRAY_SIZE(nfs4_callback_procedures1)];
+static DEFINE_PER_CPU_ALIGNED(unsigned long,
+ nfs4_callback_count1[ARRAY_SIZE(nfs4_callback_procedures1)]);
const struct svc_version nfs4_callback_version1 = {
.vs_vers = 1,
.vs_nproc = ARRAY_SIZE(nfs4_callback_procedures1),
@@ -1087,7 +1127,8 @@ const struct svc_version nfs4_callback_version1 = {
.vs_need_cong_ctrl = true,
};
-static unsigned int nfs4_callback_count4[ARRAY_SIZE(nfs4_callback_procedures1)];
+static DEFINE_PER_CPU_ALIGNED(unsigned long,
+ nfs4_callback_count4[ARRAY_SIZE(nfs4_callback_procedures1)]);
const struct svc_version nfs4_callback_version4 = {
.vs_vers = 4,
.vs_nproc = ARRAY_SIZE(nfs4_callback_procedures1),
generated by cgit (git 2.34.1) at 2025-12-25 11:24:55 +0000