^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * linux/fs/nfs/callback_xdr.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2004 Trond Myklebust
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * NFSv4 callback encode/decode procedures
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/sunrpc/svc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/nfs4.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/nfs_fs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/ratelimit.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/printk.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/sunrpc/bc_xprt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include "nfs4_fs.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include "callback.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include "internal.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include "nfs4session.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include "nfs4trace.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #define CB_OP_TAGLEN_MAXSZ (512)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #define CB_OP_HDR_RES_MAXSZ (2 * 4) // opcode, status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #define CB_OP_GETATTR_BITMAP_MAXSZ (4 * 4) // bitmap length, 3 bitmaps
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #define CB_OP_GETATTR_RES_MAXSZ (CB_OP_HDR_RES_MAXSZ + \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) CB_OP_GETATTR_BITMAP_MAXSZ + \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) /* change, size, ctime, mtime */\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) (2 + 2 + 3 + 3) * 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #define CB_OP_RECALL_RES_MAXSZ (CB_OP_HDR_RES_MAXSZ)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #if defined(CONFIG_NFS_V4_1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #define CB_OP_LAYOUTRECALL_RES_MAXSZ (CB_OP_HDR_RES_MAXSZ)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #define CB_OP_DEVICENOTIFY_RES_MAXSZ (CB_OP_HDR_RES_MAXSZ)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #define CB_OP_SEQUENCE_RES_MAXSZ (CB_OP_HDR_RES_MAXSZ + \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) NFS4_MAX_SESSIONID_LEN + \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) (1 + 3) * 4) // seqid, 3 slotids
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #define CB_OP_RECALLANY_RES_MAXSZ (CB_OP_HDR_RES_MAXSZ)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #define CB_OP_RECALLSLOT_RES_MAXSZ (CB_OP_HDR_RES_MAXSZ)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #define CB_OP_NOTIFY_LOCK_RES_MAXSZ (CB_OP_HDR_RES_MAXSZ)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #endif /* CONFIG_NFS_V4_1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #ifdef CONFIG_NFS_V4_2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #define CB_OP_OFFLOAD_RES_MAXSZ (CB_OP_HDR_RES_MAXSZ)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #endif /* CONFIG_NFS_V4_2 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #define NFSDBG_FACILITY NFSDBG_CALLBACK
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) /* Internal error code */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) #define NFS4ERR_RESOURCE_HDR 11050
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) struct callback_op {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) __be32 (*process_op)(void *, void *, struct cb_process_state *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) __be32 (*decode_args)(struct svc_rqst *, struct xdr_stream *, void *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) __be32 (*encode_res)(struct svc_rqst *, struct xdr_stream *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) const void *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) long res_maxsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) static struct callback_op callback_ops[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) static __be32 nfs4_callback_null(struct svc_rqst *rqstp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) return htonl(NFS4_OK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) static int nfs4_decode_void(struct svc_rqst *rqstp, __be32 *p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) return xdr_argsize_check(rqstp, p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) static int nfs4_encode_void(struct svc_rqst *rqstp, __be32 *p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) return xdr_ressize_check(rqstp, p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) static __be32 decode_string(struct xdr_stream *xdr, unsigned int *len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) const char **str, size_t maxlen)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) ssize_t err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) err = xdr_stream_decode_opaque_inline(xdr, (void **)str, maxlen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) return cpu_to_be32(NFS4ERR_RESOURCE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) *len = err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) static __be32 decode_fh(struct xdr_stream *xdr, struct nfs_fh *fh)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) __be32 *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) p = xdr_inline_decode(xdr, 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) if (unlikely(p == NULL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) return htonl(NFS4ERR_RESOURCE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) fh->size = ntohl(*p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) if (fh->size > NFS4_FHSIZE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) return htonl(NFS4ERR_BADHANDLE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) p = xdr_inline_decode(xdr, fh->size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) if (unlikely(p == NULL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) return htonl(NFS4ERR_RESOURCE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) memcpy(&fh->data[0], p, fh->size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) memset(&fh->data[fh->size], 0, sizeof(fh->data) - fh->size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) static __be32 decode_bitmap(struct xdr_stream *xdr, uint32_t *bitmap)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) __be32 *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) unsigned int attrlen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) p = xdr_inline_decode(xdr, 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) if (unlikely(p == NULL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) return htonl(NFS4ERR_RESOURCE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) attrlen = ntohl(*p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) p = xdr_inline_decode(xdr, attrlen << 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) if (unlikely(p == NULL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) return htonl(NFS4ERR_RESOURCE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) if (likely(attrlen > 0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) bitmap[0] = ntohl(*p++);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) if (attrlen > 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) bitmap[1] = ntohl(*p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) static __be32 decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) __be32 *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) p = xdr_inline_decode(xdr, NFS4_STATEID_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) if (unlikely(p == NULL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) return htonl(NFS4ERR_RESOURCE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) memcpy(stateid->data, p, NFS4_STATEID_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) static __be32 decode_delegation_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) stateid->type = NFS4_DELEGATION_STATEID_TYPE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) return decode_stateid(xdr, stateid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) static __be32 decode_compound_hdr_arg(struct xdr_stream *xdr, struct cb_compound_hdr_arg *hdr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) __be32 *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) __be32 status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) status = decode_string(xdr, &hdr->taglen, &hdr->tag, CB_OP_TAGLEN_MAXSZ);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) if (unlikely(status != 0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) p = xdr_inline_decode(xdr, 12);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) if (unlikely(p == NULL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) return htonl(NFS4ERR_RESOURCE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) hdr->minorversion = ntohl(*p++);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) /* Check for minor version support */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) if (hdr->minorversion <= NFS4_MAX_MINOR_VERSION) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) hdr->cb_ident = ntohl(*p++); /* ignored by v4.1 and v4.2 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) pr_warn_ratelimited("NFS: %s: NFSv4 server callback with "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) "illegal minor version %u!\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) __func__, hdr->minorversion);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) return htonl(NFS4ERR_MINOR_VERS_MISMATCH);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) hdr->nops = ntohl(*p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) static __be32 decode_op_hdr(struct xdr_stream *xdr, unsigned int *op)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) __be32 *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) p = xdr_inline_decode(xdr, 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) if (unlikely(p == NULL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) return htonl(NFS4ERR_RESOURCE_HDR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) *op = ntohl(*p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) static __be32 decode_getattr_args(struct svc_rqst *rqstp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) struct xdr_stream *xdr, void *argp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) struct cb_getattrargs *args = argp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) __be32 status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) status = decode_fh(xdr, &args->fh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) if (unlikely(status != 0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) return decode_bitmap(xdr, args->bitmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) static __be32 decode_recall_args(struct svc_rqst *rqstp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) struct xdr_stream *xdr, void *argp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) struct cb_recallargs *args = argp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) __be32 *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) __be32 status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) status = decode_delegation_stateid(xdr, &args->stateid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) if (unlikely(status != 0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) p = xdr_inline_decode(xdr, 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) if (unlikely(p == NULL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) return htonl(NFS4ERR_RESOURCE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) args->truncate = ntohl(*p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) return decode_fh(xdr, &args->fh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) #if defined(CONFIG_NFS_V4_1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) static __be32 decode_layout_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) stateid->type = NFS4_LAYOUT_STATEID_TYPE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) return decode_stateid(xdr, stateid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) static __be32 decode_layoutrecall_args(struct svc_rqst *rqstp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) struct xdr_stream *xdr, void *argp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) struct cb_layoutrecallargs *args = argp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) __be32 *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) __be32 status = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) uint32_t iomode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) p = xdr_inline_decode(xdr, 4 * sizeof(uint32_t));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) if (unlikely(p == NULL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) return htonl(NFS4ERR_BADXDR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) args->cbl_layout_type = ntohl(*p++);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) /* Depite the spec's xdr, iomode really belongs in the FILE switch,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) * as it is unusable and ignored with the other types.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) iomode = ntohl(*p++);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) args->cbl_layoutchanged = ntohl(*p++);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) args->cbl_recall_type = ntohl(*p++);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) if (args->cbl_recall_type == RETURN_FILE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) args->cbl_range.iomode = iomode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) status = decode_fh(xdr, &args->cbl_fh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) if (unlikely(status != 0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) p = xdr_inline_decode(xdr, 2 * sizeof(uint64_t));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) if (unlikely(p == NULL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) return htonl(NFS4ERR_BADXDR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) p = xdr_decode_hyper(p, &args->cbl_range.offset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) p = xdr_decode_hyper(p, &args->cbl_range.length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) return decode_layout_stateid(xdr, &args->cbl_stateid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) } else if (args->cbl_recall_type == RETURN_FSID) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) p = xdr_inline_decode(xdr, 2 * sizeof(uint64_t));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) if (unlikely(p == NULL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) return htonl(NFS4ERR_BADXDR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) p = xdr_decode_hyper(p, &args->cbl_fsid.major);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) p = xdr_decode_hyper(p, &args->cbl_fsid.minor);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) } else if (args->cbl_recall_type != RETURN_ALL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) return htonl(NFS4ERR_BADXDR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) static
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) __be32 decode_devicenotify_args(struct svc_rqst *rqstp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) struct xdr_stream *xdr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) void *argp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) struct cb_devicenotifyargs *args = argp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) uint32_t tmp, n, i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) __be32 *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) __be32 status = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) /* Num of device notifications */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) p = xdr_inline_decode(xdr, sizeof(uint32_t));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) if (unlikely(p == NULL)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) status = htonl(NFS4ERR_BADXDR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) n = ntohl(*p++);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) if (n == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) args->devs = kmalloc_array(n, sizeof(*args->devs), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) if (!args->devs) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) status = htonl(NFS4ERR_DELAY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) /* Decode each dev notification */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) for (i = 0; i < n; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) struct cb_devicenotifyitem *dev = &args->devs[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) p = xdr_inline_decode(xdr, (4 * sizeof(uint32_t)) +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) NFS4_DEVICEID4_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) if (unlikely(p == NULL)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) status = htonl(NFS4ERR_BADXDR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) goto err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) tmp = ntohl(*p++); /* bitmap size */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) if (tmp != 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) status = htonl(NFS4ERR_INVAL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) goto err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) dev->cbd_notify_type = ntohl(*p++);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) if (dev->cbd_notify_type != NOTIFY_DEVICEID4_CHANGE &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) dev->cbd_notify_type != NOTIFY_DEVICEID4_DELETE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) status = htonl(NFS4ERR_INVAL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) goto err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) tmp = ntohl(*p++); /* opaque size */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) if (((dev->cbd_notify_type == NOTIFY_DEVICEID4_CHANGE) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) (tmp != NFS4_DEVICEID4_SIZE + 8)) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) ((dev->cbd_notify_type == NOTIFY_DEVICEID4_DELETE) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) (tmp != NFS4_DEVICEID4_SIZE + 4))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) status = htonl(NFS4ERR_INVAL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) goto err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) dev->cbd_layout_type = ntohl(*p++);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) memcpy(dev->cbd_dev_id.data, p, NFS4_DEVICEID4_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) p += XDR_QUADLEN(NFS4_DEVICEID4_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) if (dev->cbd_layout_type == NOTIFY_DEVICEID4_CHANGE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) p = xdr_inline_decode(xdr, sizeof(uint32_t));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) if (unlikely(p == NULL)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) status = htonl(NFS4ERR_BADXDR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) goto err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) dev->cbd_immediate = ntohl(*p++);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) dev->cbd_immediate = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) dprintk("%s: type %d layout 0x%x immediate %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) __func__, dev->cbd_notify_type, dev->cbd_layout_type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) dev->cbd_immediate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) args->ndevs = n;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) dprintk("%s: ndevs %d\n", __func__, args->ndevs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) err:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) kfree(args->devs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) args->devs = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) args->ndevs = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) dprintk("%s: status %d ndevs %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) __func__, ntohl(status), args->ndevs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) static __be32 decode_sessionid(struct xdr_stream *xdr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) struct nfs4_sessionid *sid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) __be32 *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) p = xdr_inline_decode(xdr, NFS4_MAX_SESSIONID_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) if (unlikely(p == NULL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) return htonl(NFS4ERR_RESOURCE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) memcpy(sid->data, p, NFS4_MAX_SESSIONID_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) static __be32 decode_rc_list(struct xdr_stream *xdr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) struct referring_call_list *rc_list)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) __be32 *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) __be32 status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) status = decode_sessionid(xdr, &rc_list->rcl_sessionid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) if (status)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) status = htonl(NFS4ERR_RESOURCE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) p = xdr_inline_decode(xdr, sizeof(uint32_t));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) if (unlikely(p == NULL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) rc_list->rcl_nrefcalls = ntohl(*p++);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) if (rc_list->rcl_nrefcalls) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) p = xdr_inline_decode(xdr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) rc_list->rcl_nrefcalls * 2 * sizeof(uint32_t));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) if (unlikely(p == NULL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) rc_list->rcl_refcalls = kmalloc_array(rc_list->rcl_nrefcalls,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) sizeof(*rc_list->rcl_refcalls),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) if (unlikely(rc_list->rcl_refcalls == NULL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) for (i = 0; i < rc_list->rcl_nrefcalls; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) rc_list->rcl_refcalls[i].rc_sequenceid = ntohl(*p++);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) rc_list->rcl_refcalls[i].rc_slotid = ntohl(*p++);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) status = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) static __be32 decode_cb_sequence_args(struct svc_rqst *rqstp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) struct xdr_stream *xdr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) void *argp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) struct cb_sequenceargs *args = argp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) __be32 *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) __be32 status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) status = decode_sessionid(xdr, &args->csa_sessionid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) if (status)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) p = xdr_inline_decode(xdr, 5 * sizeof(uint32_t));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) if (unlikely(p == NULL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) return htonl(NFS4ERR_RESOURCE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) args->csa_addr = svc_addr(rqstp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) args->csa_sequenceid = ntohl(*p++);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) args->csa_slotid = ntohl(*p++);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) args->csa_highestslotid = ntohl(*p++);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) args->csa_cachethis = ntohl(*p++);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) args->csa_nrclists = ntohl(*p++);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) args->csa_rclists = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) if (args->csa_nrclists) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) args->csa_rclists = kmalloc_array(args->csa_nrclists,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) sizeof(*args->csa_rclists),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) if (unlikely(args->csa_rclists == NULL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) return htonl(NFS4ERR_RESOURCE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) for (i = 0; i < args->csa_nrclists; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) status = decode_rc_list(xdr, &args->csa_rclists[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) if (status) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) args->csa_nrclists = i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) goto out_free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) out_free:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) for (i = 0; i < args->csa_nrclists; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) kfree(args->csa_rclists[i].rcl_refcalls);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) kfree(args->csa_rclists);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) static __be32 decode_recallany_args(struct svc_rqst *rqstp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) struct xdr_stream *xdr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) void *argp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) struct cb_recallanyargs *args = argp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) uint32_t bitmap[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) __be32 *p, status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) p = xdr_inline_decode(xdr, 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) if (unlikely(p == NULL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) return htonl(NFS4ERR_BADXDR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) args->craa_objs_to_keep = ntohl(*p++);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) status = decode_bitmap(xdr, bitmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) if (unlikely(status))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) args->craa_type_mask = bitmap[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) static __be32 decode_recallslot_args(struct svc_rqst *rqstp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) struct xdr_stream *xdr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) void *argp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) struct cb_recallslotargs *args = argp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) __be32 *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) p = xdr_inline_decode(xdr, 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) if (unlikely(p == NULL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) return htonl(NFS4ERR_BADXDR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) args->crsa_target_highest_slotid = ntohl(*p++);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) static __be32 decode_lockowner(struct xdr_stream *xdr, struct cb_notify_lock_args *args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) __be32 *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) unsigned int len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) p = xdr_inline_decode(xdr, 12);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) if (unlikely(p == NULL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) return htonl(NFS4ERR_BADXDR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) p = xdr_decode_hyper(p, &args->cbnl_owner.clientid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) len = be32_to_cpu(*p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) p = xdr_inline_decode(xdr, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) if (unlikely(p == NULL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) return htonl(NFS4ERR_BADXDR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) /* Only try to decode if the length is right */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) if (len == 20) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) p += 2; /* skip "lock id:" */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) args->cbnl_owner.s_dev = be32_to_cpu(*p++);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) xdr_decode_hyper(p, &args->cbnl_owner.id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) args->cbnl_valid = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) args->cbnl_owner.s_dev = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) args->cbnl_owner.id = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) args->cbnl_valid = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) static __be32 decode_notify_lock_args(struct svc_rqst *rqstp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) struct xdr_stream *xdr, void *argp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) struct cb_notify_lock_args *args = argp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) __be32 status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) status = decode_fh(xdr, &args->cbnl_fh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) if (unlikely(status != 0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) return decode_lockowner(xdr, args);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) #endif /* CONFIG_NFS_V4_1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) #ifdef CONFIG_NFS_V4_2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) static __be32 decode_write_response(struct xdr_stream *xdr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) struct cb_offloadargs *args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) __be32 *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) /* skip the always zero field */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) p = xdr_inline_decode(xdr, 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) if (unlikely(!p))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) p++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) /* decode count, stable_how, verifier */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) p = xdr_inline_decode(xdr, 8 + 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) if (unlikely(!p))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) p = xdr_decode_hyper(p, &args->wr_count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) args->wr_writeverf.committed = be32_to_cpup(p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) p = xdr_inline_decode(xdr, NFS4_VERIFIER_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) if (likely(p)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) memcpy(&args->wr_writeverf.verifier.data[0], p,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) NFS4_VERIFIER_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) return htonl(NFS4ERR_RESOURCE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) static __be32 decode_offload_args(struct svc_rqst *rqstp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) struct xdr_stream *xdr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) struct cb_offloadargs *args = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) __be32 *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) __be32 status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) /* decode fh */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) status = decode_fh(xdr, &args->coa_fh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) if (unlikely(status != 0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) /* decode stateid */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) status = decode_stateid(xdr, &args->coa_stateid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) if (unlikely(status != 0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) /* decode status */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) p = xdr_inline_decode(xdr, 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) if (unlikely(!p))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) args->error = ntohl(*p++);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) if (!args->error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) status = decode_write_response(xdr, args);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) if (unlikely(status != 0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) p = xdr_inline_decode(xdr, 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) if (unlikely(!p))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) p = xdr_decode_hyper(p, &args->wr_count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) return htonl(NFS4ERR_RESOURCE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) #endif /* CONFIG_NFS_V4_2 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) static __be32 encode_string(struct xdr_stream *xdr, unsigned int len, const char *str)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) if (unlikely(xdr_stream_encode_opaque(xdr, str, len) < 0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) return cpu_to_be32(NFS4ERR_RESOURCE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) static __be32 encode_attr_bitmap(struct xdr_stream *xdr, const uint32_t *bitmap, size_t sz)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) if (xdr_stream_encode_uint32_array(xdr, bitmap, sz) < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) return cpu_to_be32(NFS4ERR_RESOURCE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) static __be32 encode_attr_change(struct xdr_stream *xdr, const uint32_t *bitmap, uint64_t change)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) __be32 *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) if (!(bitmap[0] & FATTR4_WORD0_CHANGE))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) p = xdr_reserve_space(xdr, 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) if (unlikely(!p))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) return htonl(NFS4ERR_RESOURCE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) p = xdr_encode_hyper(p, change);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) static __be32 encode_attr_size(struct xdr_stream *xdr, const uint32_t *bitmap, uint64_t size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) __be32 *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) if (!(bitmap[0] & FATTR4_WORD0_SIZE))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) p = xdr_reserve_space(xdr, 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) if (unlikely(!p))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) return htonl(NFS4ERR_RESOURCE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) p = xdr_encode_hyper(p, size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) static __be32 encode_attr_time(struct xdr_stream *xdr, const struct timespec64 *time)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) __be32 *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) p = xdr_reserve_space(xdr, 12);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) if (unlikely(!p))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) return htonl(NFS4ERR_RESOURCE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) p = xdr_encode_hyper(p, time->tv_sec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) *p = htonl(time->tv_nsec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) static __be32 encode_attr_ctime(struct xdr_stream *xdr, const uint32_t *bitmap, const struct timespec64 *time)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) if (!(bitmap[1] & FATTR4_WORD1_TIME_METADATA))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) return encode_attr_time(xdr,time);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) static __be32 encode_attr_mtime(struct xdr_stream *xdr, const uint32_t *bitmap, const struct timespec64 *time)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) if (!(bitmap[1] & FATTR4_WORD1_TIME_MODIFY))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) return encode_attr_time(xdr,time);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) static __be32 encode_compound_hdr_res(struct xdr_stream *xdr, struct cb_compound_hdr_res *hdr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) __be32 status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) hdr->status = xdr_reserve_space(xdr, 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) if (unlikely(hdr->status == NULL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) return htonl(NFS4ERR_RESOURCE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) status = encode_string(xdr, hdr->taglen, hdr->tag);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) if (unlikely(status != 0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) hdr->nops = xdr_reserve_space(xdr, 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) if (unlikely(hdr->nops == NULL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) return htonl(NFS4ERR_RESOURCE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) static __be32 encode_op_hdr(struct xdr_stream *xdr, uint32_t op, __be32 res)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) __be32 *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) p = xdr_reserve_space(xdr, 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) if (unlikely(p == NULL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) return htonl(NFS4ERR_RESOURCE_HDR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) *p++ = htonl(op);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) *p = res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) static __be32 encode_getattr_res(struct svc_rqst *rqstp, struct xdr_stream *xdr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) const void *resp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) const struct cb_getattrres *res = resp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) __be32 *savep = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) __be32 status = res->status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) if (unlikely(status != 0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) status = encode_attr_bitmap(xdr, res->bitmap, ARRAY_SIZE(res->bitmap));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) if (unlikely(status != 0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) status = cpu_to_be32(NFS4ERR_RESOURCE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) savep = xdr_reserve_space(xdr, sizeof(*savep));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) if (unlikely(!savep))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) status = encode_attr_change(xdr, res->bitmap, res->change_attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) if (unlikely(status != 0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) status = encode_attr_size(xdr, res->bitmap, res->size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) if (unlikely(status != 0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) status = encode_attr_ctime(xdr, res->bitmap, &res->ctime);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) if (unlikely(status != 0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) status = encode_attr_mtime(xdr, res->bitmap, &res->mtime);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) *savep = htonl((unsigned int)((char *)xdr->p - (char *)(savep+1)));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) #if defined(CONFIG_NFS_V4_1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) static __be32 encode_sessionid(struct xdr_stream *xdr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) const struct nfs4_sessionid *sid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) __be32 *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) p = xdr_reserve_space(xdr, NFS4_MAX_SESSIONID_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) if (unlikely(p == NULL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) return htonl(NFS4ERR_RESOURCE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) memcpy(p, sid, NFS4_MAX_SESSIONID_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) static __be32 encode_cb_sequence_res(struct svc_rqst *rqstp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) struct xdr_stream *xdr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) const void *resp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) const struct cb_sequenceres *res = resp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) __be32 *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) __be32 status = res->csr_status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) if (unlikely(status != 0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) status = encode_sessionid(xdr, &res->csr_sessionid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) if (status)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) p = xdr_reserve_space(xdr, 4 * sizeof(uint32_t));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) if (unlikely(p == NULL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) return htonl(NFS4ERR_RESOURCE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) *p++ = htonl(res->csr_sequenceid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) *p++ = htonl(res->csr_slotid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) *p++ = htonl(res->csr_highestslotid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) *p++ = htonl(res->csr_target_highestslotid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) static __be32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) preprocess_nfs41_op(int nop, unsigned int op_nr, struct callback_op **op)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) if (op_nr == OP_CB_SEQUENCE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) if (nop != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) return htonl(NFS4ERR_SEQUENCE_POS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760) if (nop == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) return htonl(NFS4ERR_OP_NOT_IN_SESSION);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) switch (op_nr) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) case OP_CB_GETATTR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) case OP_CB_RECALL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) case OP_CB_SEQUENCE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) case OP_CB_RECALL_ANY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) case OP_CB_RECALL_SLOT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) case OP_CB_LAYOUTRECALL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) case OP_CB_NOTIFY_DEVICEID:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) case OP_CB_NOTIFY_LOCK:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) *op = &callback_ops[op_nr];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) case OP_CB_NOTIFY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) case OP_CB_PUSH_DELEG:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) case OP_CB_RECALLABLE_OBJ_AVAIL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) case OP_CB_WANTS_CANCELLED:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) return htonl(NFS4ERR_NOTSUPP);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783) return htonl(NFS4ERR_OP_ILLEGAL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) return htonl(NFS_OK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789) static void nfs4_callback_free_slot(struct nfs4_session *session,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) struct nfs4_slot *slot)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792) struct nfs4_slot_table *tbl = &session->bc_slot_table;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794) spin_lock(&tbl->slot_tbl_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) * Let the state manager know callback processing done.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797) * A single slot, so highest used slotid is either 0 or -1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) nfs4_free_slot(tbl, slot);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) spin_unlock(&tbl->slot_tbl_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803) static void nfs4_cb_free_slot(struct cb_process_state *cps)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805) if (cps->slot) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806) nfs4_callback_free_slot(cps->clp->cl_session, cps->slot);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) cps->slot = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) #else /* CONFIG_NFS_V4_1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) static __be32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814) preprocess_nfs41_op(int nop, unsigned int op_nr, struct callback_op **op)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) return htonl(NFS4ERR_MINOR_VERS_MISMATCH);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) static void nfs4_cb_free_slot(struct cb_process_state *cps)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822) #endif /* CONFIG_NFS_V4_1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824) #ifdef CONFIG_NFS_V4_2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825) static __be32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826) preprocess_nfs42_op(int nop, unsigned int op_nr, struct callback_op **op)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828) __be32 status = preprocess_nfs41_op(nop, op_nr, op);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829) if (status != htonl(NFS4ERR_OP_ILLEGAL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832) if (op_nr == OP_CB_OFFLOAD) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833) *op = &callback_ops[op_nr];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834) return htonl(NFS_OK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836) return htonl(NFS4ERR_NOTSUPP);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837) return htonl(NFS4ERR_OP_ILLEGAL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839) #else /* CONFIG_NFS_V4_2 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840) static __be32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841) preprocess_nfs42_op(int nop, unsigned int op_nr, struct callback_op **op)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843) return htonl(NFS4ERR_MINOR_VERS_MISMATCH);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845) #endif /* CONFIG_NFS_V4_2 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847) static __be32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848) preprocess_nfs4_op(unsigned int op_nr, struct callback_op **op)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850) switch (op_nr) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851) case OP_CB_GETATTR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852) case OP_CB_RECALL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853) *op = &callback_ops[op_nr];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856) return htonl(NFS4ERR_OP_ILLEGAL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859) return htonl(NFS_OK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862) static __be32 process_op(int nop, struct svc_rqst *rqstp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863) struct xdr_stream *xdr_in, void *argp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864) struct xdr_stream *xdr_out, void *resp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865) struct cb_process_state *cps)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867) struct callback_op *op = &callback_ops[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868) unsigned int op_nr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869) __be32 status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870) long maxlen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871) __be32 res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873) status = decode_op_hdr(xdr_in, &op_nr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874) if (unlikely(status))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877) switch (cps->minorversion) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878) case 0:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879) status = preprocess_nfs4_op(op_nr, &op);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881) case 1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882) status = preprocess_nfs41_op(nop, op_nr, &op);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884) case 2:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885) status = preprocess_nfs42_op(nop, op_nr, &op);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 887) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 888) status = htonl(NFS4ERR_MINOR_VERS_MISMATCH);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 889) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891) if (status == htonl(NFS4ERR_OP_ILLEGAL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892) op_nr = OP_CB_ILLEGAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893) if (status)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894) goto encode_hdr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896) if (cps->drc_status) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 897) status = cps->drc_status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 898) goto encode_hdr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 899) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 900)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 901) maxlen = xdr_out->end - xdr_out->p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 902) if (maxlen > 0 && maxlen < PAGE_SIZE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 903) status = op->decode_args(rqstp, xdr_in, argp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 904) if (likely(status == 0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 905) status = op->process_op(argp, resp, cps);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 906) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 907) status = htonl(NFS4ERR_RESOURCE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 908)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 909) encode_hdr:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 910) res = encode_op_hdr(xdr_out, op_nr, status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 911) if (unlikely(res))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 912) return res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 913) if (op->encode_res != NULL && status == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 914) status = op->encode_res(rqstp, xdr_out, resp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 915) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 916) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 917)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 918) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 919) * Decode, process and encode a COMPOUND
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 920) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 921) static __be32 nfs4_callback_compound(struct svc_rqst *rqstp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 922) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 923) struct cb_compound_hdr_arg hdr_arg = { 0 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 924) struct cb_compound_hdr_res hdr_res = { NULL };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 925) struct xdr_stream xdr_in, xdr_out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 926) __be32 *p, status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 927) struct cb_process_state cps = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 928) .drc_status = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 929) .clp = NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 930) .net = SVC_NET(rqstp),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 931) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 932) unsigned int nops = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 933)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 934) xdr_init_decode(&xdr_in, &rqstp->rq_arg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 935) rqstp->rq_arg.head[0].iov_base, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 936)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 937) p = (__be32*)((char *)rqstp->rq_res.head[0].iov_base + rqstp->rq_res.head[0].iov_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 938) xdr_init_encode(&xdr_out, &rqstp->rq_res, p, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 939)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 940) status = decode_compound_hdr_arg(&xdr_in, &hdr_arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 941) if (status == htonl(NFS4ERR_RESOURCE))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 942) return rpc_garbage_args;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 943)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 944) if (hdr_arg.minorversion == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 945) cps.clp = nfs4_find_client_ident(SVC_NET(rqstp), hdr_arg.cb_ident);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 946) if (!cps.clp) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 947) trace_nfs_cb_no_clp(rqstp->rq_xid, hdr_arg.cb_ident);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 948) goto out_invalidcred;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 949) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 950) if (!check_gss_callback_principal(cps.clp, rqstp)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 951) trace_nfs_cb_badprinc(rqstp->rq_xid, hdr_arg.cb_ident);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 952) nfs_put_client(cps.clp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 953) goto out_invalidcred;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 954) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 955) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 956)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 957) cps.minorversion = hdr_arg.minorversion;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 958) hdr_res.taglen = hdr_arg.taglen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 959) hdr_res.tag = hdr_arg.tag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 960) if (encode_compound_hdr_res(&xdr_out, &hdr_res) != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 961) if (cps.clp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 962) nfs_put_client(cps.clp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 963) return rpc_system_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 964) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 965) while (status == 0 && nops != hdr_arg.nops) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 966) status = process_op(nops, rqstp, &xdr_in,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 967) rqstp->rq_argp, &xdr_out, rqstp->rq_resp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 968) &cps);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 969) nops++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 970) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 971)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 972) /* Buffer overflow in decode_ops_hdr or encode_ops_hdr. Return
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 973) * resource error in cb_compound status without returning op */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 974) if (unlikely(status == htonl(NFS4ERR_RESOURCE_HDR))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 975) status = htonl(NFS4ERR_RESOURCE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 976) nops--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 977) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 978)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 979) *hdr_res.status = status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 980) *hdr_res.nops = htonl(nops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 981) nfs4_cb_free_slot(&cps);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 982) nfs_put_client(cps.clp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 983) return rpc_success;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 984)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 985) out_invalidcred:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 986) pr_warn_ratelimited("NFS: NFSv4 callback contains invalid cred\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 987) return svc_return_autherr(rqstp, rpc_autherr_badcred);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 988) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 989)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 990) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 991) * Define NFS4 callback COMPOUND ops.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 992) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 993) static struct callback_op callback_ops[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 994) [0] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 995) .res_maxsize = CB_OP_HDR_RES_MAXSZ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 996) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 997) [OP_CB_GETATTR] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 998) .process_op = nfs4_callback_getattr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 999) .decode_args = decode_getattr_args,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1000) .encode_res = encode_getattr_res,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1001) .res_maxsize = CB_OP_GETATTR_RES_MAXSZ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1002) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1003) [OP_CB_RECALL] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1004) .process_op = nfs4_callback_recall,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1005) .decode_args = decode_recall_args,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1006) .res_maxsize = CB_OP_RECALL_RES_MAXSZ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1007) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1008) #if defined(CONFIG_NFS_V4_1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1009) [OP_CB_LAYOUTRECALL] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1010) .process_op = nfs4_callback_layoutrecall,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1011) .decode_args = decode_layoutrecall_args,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1012) .res_maxsize = CB_OP_LAYOUTRECALL_RES_MAXSZ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1013) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1014) [OP_CB_NOTIFY_DEVICEID] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1015) .process_op = nfs4_callback_devicenotify,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1016) .decode_args = decode_devicenotify_args,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1017) .res_maxsize = CB_OP_DEVICENOTIFY_RES_MAXSZ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1018) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1019) [OP_CB_SEQUENCE] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1020) .process_op = nfs4_callback_sequence,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1021) .decode_args = decode_cb_sequence_args,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1022) .encode_res = encode_cb_sequence_res,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1023) .res_maxsize = CB_OP_SEQUENCE_RES_MAXSZ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1024) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1025) [OP_CB_RECALL_ANY] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1026) .process_op = nfs4_callback_recallany,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1027) .decode_args = decode_recallany_args,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1028) .res_maxsize = CB_OP_RECALLANY_RES_MAXSZ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1029) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1030) [OP_CB_RECALL_SLOT] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1031) .process_op = nfs4_callback_recallslot,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1032) .decode_args = decode_recallslot_args,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1033) .res_maxsize = CB_OP_RECALLSLOT_RES_MAXSZ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1034) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1035) [OP_CB_NOTIFY_LOCK] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1036) .process_op = nfs4_callback_notify_lock,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1037) .decode_args = decode_notify_lock_args,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1038) .res_maxsize = CB_OP_NOTIFY_LOCK_RES_MAXSZ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1039) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1040) #endif /* CONFIG_NFS_V4_1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1041) #ifdef CONFIG_NFS_V4_2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1042) [OP_CB_OFFLOAD] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1043) .process_op = nfs4_callback_offload,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1044) .decode_args = decode_offload_args,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1045) .res_maxsize = CB_OP_OFFLOAD_RES_MAXSZ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1046) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1047) #endif /* CONFIG_NFS_V4_2 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1048) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1049)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1050) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1051) * Define NFS4 callback procedures
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1052) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1053) static const struct svc_procedure nfs4_callback_procedures1[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1054) [CB_NULL] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1055) .pc_func = nfs4_callback_null,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1056) .pc_decode = nfs4_decode_void,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1057) .pc_encode = nfs4_encode_void,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1058) .pc_xdrressize = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1059) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1060) [CB_COMPOUND] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1061) .pc_func = nfs4_callback_compound,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1062) .pc_encode = nfs4_encode_void,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1063) .pc_argsize = 256,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1064) .pc_ressize = 256,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1065) .pc_xdrressize = NFS4_CALLBACK_BUFSIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1066) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1067) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1068)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1069) static unsigned int nfs4_callback_count1[ARRAY_SIZE(nfs4_callback_procedures1)];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1070) const struct svc_version nfs4_callback_version1 = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1071) .vs_vers = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1072) .vs_nproc = ARRAY_SIZE(nfs4_callback_procedures1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1073) .vs_proc = nfs4_callback_procedures1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1074) .vs_count = nfs4_callback_count1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1075) .vs_xdrsize = NFS4_CALLBACK_XDRSIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1076) .vs_dispatch = NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1077) .vs_hidden = true,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1078) .vs_need_cong_ctrl = true,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1079) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1080)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1081) static unsigned int nfs4_callback_count4[ARRAY_SIZE(nfs4_callback_procedures1)];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1082) const struct svc_version nfs4_callback_version4 = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1083) .vs_vers = 4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1084) .vs_nproc = ARRAY_SIZE(nfs4_callback_procedures1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1085) .vs_proc = nfs4_callback_procedures1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1086) .vs_count = nfs4_callback_count4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1087) .vs_xdrsize = NFS4_CALLBACK_XDRSIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1088) .vs_dispatch = NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1089) .vs_hidden = true,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1090) .vs_need_cong_ctrl = true,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1091) };
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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