diff options
Diffstat (limited to 'fs/nfs/nfs4xdr.c')
-rw-r--r-- | fs/nfs/nfs4xdr.c | 258 |
1 files changed, 125 insertions, 133 deletions
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index 1416099dfcd1..55bef5fbfa47 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -52,6 +52,7 @@ #include <linux/nfs.h> #include <linux/nfs4.h> #include <linux/nfs_fs.h> +#include <linux/nfs_common.h> #include "nfs4_fs.h" #include "nfs4trace.h" @@ -63,11 +64,7 @@ #define NFSDBG_FACILITY NFSDBG_XDR -/* Mapping from NFS error code to "errno" error code. */ -#define errno_NFSERR_IO EIO - struct compound_hdr; -static int nfs4_stat_to_errno(int); static void encode_layoutget(struct xdr_stream *xdr, const struct nfs4_layoutget_args *args, struct compound_hdr *hdr); @@ -85,9 +82,8 @@ static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req, * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2) */ #define pagepad_maxsz (1) -#define open_owner_id_maxsz (1 + 2 + 1 + 1 + 2) -#define lock_owner_id_maxsz (1 + 1 + 4) -#define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) +#define open_owner_id_maxsz (2 + 1 + 2 + 2) +#define lock_owner_id_maxsz (2 + 1 + 2) #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) #define op_encode_hdr_maxsz (1) @@ -188,7 +184,7 @@ static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req, #define encode_claim_null_maxsz (1 + nfs4_name_maxsz) #define encode_open_maxsz (op_encode_hdr_maxsz + \ 2 + encode_share_access_maxsz + 2 + \ - open_owner_id_maxsz + \ + 1 + open_owner_id_maxsz + \ encode_opentype_maxsz + \ encode_claim_null_maxsz) #define decode_space_limit_maxsz (3) @@ -224,6 +220,11 @@ static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req, encode_attrs_maxsz) #define decode_setattr_maxsz (op_decode_hdr_maxsz + \ nfs4_fattr_bitmap_maxsz) +#define encode_delegattr_maxsz (op_encode_hdr_maxsz + \ + encode_stateid_maxsz + \ + nfs4_fattr_bitmap_maxsz + \ + 2*nfstime4_maxsz) +#define decode_delegattr_maxsz (decode_setattr_maxsz) #define encode_read_maxsz (op_encode_hdr_maxsz + \ encode_stateid_maxsz + 3) #define decode_read_maxsz (op_decode_hdr_maxsz + 2 + pagepad_maxsz) @@ -253,13 +254,14 @@ static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req, #define encode_link_maxsz (op_encode_hdr_maxsz + \ nfs4_name_maxsz) #define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz) -#define encode_lockowner_maxsz (7) +#define encode_lockowner_maxsz (2 + 1 + lock_owner_id_maxsz) + #define encode_lock_maxsz (op_encode_hdr_maxsz + \ 7 + \ 1 + encode_stateid_maxsz + 1 + \ encode_lockowner_maxsz) #define decode_lock_denied_maxsz \ - (8 + decode_lockowner_maxsz) + (2 + 2 + 1 + 2 + 1 + lock_owner_id_maxsz) #define decode_lock_maxsz (op_decode_hdr_maxsz + \ decode_lock_denied_maxsz) #define encode_lockt_maxsz (op_encode_hdr_maxsz + 5 + \ @@ -615,7 +617,7 @@ static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req, encode_lockowner_maxsz) #define NFS4_dec_release_lockowner_sz \ (compound_decode_hdr_maxsz + \ - decode_lockowner_maxsz) + decode_release_lockowner_maxsz) #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ encode_sequence_maxsz + \ encode_putfh_maxsz + \ @@ -758,12 +760,14 @@ static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req, encode_sequence_maxsz + \ encode_putfh_maxsz + \ encode_layoutreturn_maxsz + \ + encode_delegattr_maxsz + \ encode_delegreturn_maxsz + \ encode_getattr_maxsz) #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ decode_sequence_maxsz + \ decode_putfh_maxsz + \ decode_layoutreturn_maxsz + \ + decode_delegattr_maxsz + \ decode_delegreturn_maxsz + \ decode_getattr_maxsz) #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ @@ -968,11 +972,6 @@ static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes) return p; } -static void encode_opaque_fixed(struct xdr_stream *xdr, const void *buf, size_t len) -{ - WARN_ON_ONCE(xdr_stream_encode_opaque_fixed(xdr, buf, len) < 0); -} - static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) { WARN_ON_ONCE(xdr_stream_encode_opaque(xdr, str, len) < 0); @@ -1060,9 +1059,10 @@ static void encode_nops(struct compound_hdr *hdr) *hdr->nops_p = htonl(hdr->nops); } -static void encode_nfs4_stateid(struct xdr_stream *xdr, const nfs4_stateid *stateid) +static void encode_nfs4_stateid(struct xdr_stream *xdr, + const nfs4_stateid *stateid) { - encode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE); + encode_opaque_fixed(xdr, stateid->data, NFS4_STATEID_SIZE); } static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) @@ -1412,16 +1412,16 @@ static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_opena __be32 *p; /* * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, - * owner 4 = 32 + * owner 28 */ encode_nfs4_seqid(xdr, arg->seqid); encode_share_access(xdr, arg->share_access); - p = reserve_space(xdr, 36); + p = reserve_space(xdr, 40); p = xdr_encode_hyper(p, arg->clientid); - *p++ = cpu_to_be32(24); + *p++ = cpu_to_be32(28); p = xdr_encode_opaque_fixed(p, "open id:", 8); *p++ = cpu_to_be32(arg->server->s_dev); - *p++ = cpu_to_be32(arg->id.uniquifier); + p = xdr_encode_hyper(p, arg->id.uniquifier); xdr_encode_hyper(p, arg->id.create_time); } @@ -1468,20 +1468,18 @@ static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *a } } -static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) +static inline void encode_delegation_type(struct xdr_stream *xdr, u32 delegation_type) { __be32 *p; p = reserve_space(xdr, 4); switch (delegation_type) { - case 0: - *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE); - break; - case FMODE_READ: - *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ); - break; - case FMODE_WRITE|FMODE_READ: - *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE); + case NFS4_OPEN_DELEGATE_NONE: + case NFS4_OPEN_DELEGATE_READ: + case NFS4_OPEN_DELEGATE_WRITE: + case NFS4_OPEN_DELEGATE_READ_ATTRS_DELEG: + case NFS4_OPEN_DELEGATE_WRITE_ATTRS_DELEG: + *p = cpu_to_be32(delegation_type); break; default: BUG(); @@ -1497,7 +1495,7 @@ static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr * encode_string(xdr, name->len, name->name); } -static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) +static inline void encode_claim_previous(struct xdr_stream *xdr, u32 type) { __be32 *p; @@ -1735,6 +1733,33 @@ static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs server->attr_bitmask); } +static void encode_delegattr(struct xdr_stream *xdr, + const nfs4_stateid *stateid, + const struct nfs4_delegattr *attr, + struct compound_hdr *hdr) +{ + uint32_t bitmap[3] = { 0 }; + uint32_t len = 0; + __be32 *p; + + encode_op_hdr(xdr, OP_SETATTR, encode_delegattr_maxsz, hdr); + encode_nfs4_stateid(xdr, stateid); + if (attr->atime_set) { + bitmap[2] |= FATTR4_WORD2_TIME_DELEG_ACCESS; + len += (nfstime4_maxsz << 2); + } + if (attr->mtime_set) { + bitmap[2] |= FATTR4_WORD2_TIME_DELEG_MODIFY; + len += (nfstime4_maxsz << 2); + } + xdr_encode_bitmap4(xdr, bitmap, ARRAY_SIZE(bitmap)); + xdr_stream_encode_opaque_inline(xdr, (void **)&p, len); + if (bitmap[2] & FATTR4_WORD2_TIME_DELEG_ACCESS) + p = xdr_encode_nfstime4(p, &attr->atime); + if (bitmap[2] & FATTR4_WORD2_TIME_DELEG_MODIFY) + p = xdr_encode_nfstime4(p, &attr->mtime); +} + static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) { __be32 *p; @@ -2105,7 +2130,7 @@ static void encode_test_stateid(struct xdr_stream *xdr, { encode_op_hdr(xdr, OP_TEST_STATEID, decode_test_stateid_maxsz, hdr); encode_uint32(xdr, 1); - encode_nfs4_stateid(xdr, args->stateid); + encode_nfs4_stateid(xdr, &args->stateid); } static void encode_free_stateid(struct xdr_stream *xdr, @@ -2812,6 +2837,8 @@ static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, encode_putfh(xdr, args->fhandle, &hdr); if (args->lr_args) encode_layoutreturn(xdr, args->lr_args, &hdr); + if (args->sattr_args) + encode_delegattr(xdr, args->stateid, args->sattr_args, &hdr); if (args->bitmask) encode_getfattr(xdr, args->bitmask, &hdr); encode_delegreturn(xdr, args->stateid, &hdr); @@ -3412,7 +3439,7 @@ static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, ui *res = be32_to_cpup(p); bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; } - dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); + dprintk("%s: link support=%s\n", __func__, str_false_true(*res == 0)); return 0; } @@ -3430,7 +3457,7 @@ static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, *res = be32_to_cpup(p); bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; } - dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); + dprintk("%s: symlink support=%s\n", __func__, str_false_true(*res == 0)); return 0; } @@ -3572,7 +3599,7 @@ static int decode_attr_case_insensitive(struct xdr_stream *xdr, uint32_t *bitmap *res = be32_to_cpup(p); bitmap[0] &= ~FATTR4_WORD0_CASE_INSENSITIVE; } - dprintk("%s: case_insensitive=%s\n", __func__, *res == 0 ? "false" : "true"); + dprintk("%s: case_insensitive=%s\n", __func__, str_false_true(*res == 0)); return 0; } @@ -3590,7 +3617,7 @@ static int decode_attr_case_preserving(struct xdr_stream *xdr, uint32_t *bitmap, *res = be32_to_cpup(p); bitmap[0] &= ~FATTR4_WORD0_CASE_PRESERVING; } - dprintk("%s: case_preserving=%s\n", __func__, *res == 0 ? "false" : "true"); + dprintk("%s: case_preserving=%s\n", __func__, str_false_true(*res == 0)); return 0; } @@ -4298,8 +4325,29 @@ static int decode_attr_xattrsupport(struct xdr_stream *xdr, uint32_t *bitmap, *res = be32_to_cpup(p); bitmap[2] &= ~FATTR4_WORD2_XATTR_SUPPORT; } - dprintk("%s: XATTR support=%s\n", __func__, - *res == 0 ? "false" : "true"); + dprintk("%s: XATTR support=%s\n", __func__, str_false_true(*res == 0)); + return 0; +} + +static int decode_attr_open_arguments(struct xdr_stream *xdr, uint32_t *bitmap, + struct nfs4_open_caps *res) +{ + memset(res, 0, sizeof(*res)); + if (unlikely(bitmap[2] & (FATTR4_WORD2_OPEN_ARGUMENTS - 1U))) + return -EIO; + if (likely(bitmap[2] & FATTR4_WORD2_OPEN_ARGUMENTS)) { + if (decode_bitmap4(xdr, res->oa_share_access, ARRAY_SIZE(res->oa_share_access)) < 0) + return -EIO; + if (decode_bitmap4(xdr, res->oa_share_deny, ARRAY_SIZE(res->oa_share_deny)) < 0) + return -EIO; + if (decode_bitmap4(xdr, res->oa_share_access_want, ARRAY_SIZE(res->oa_share_access_want)) < 0) + return -EIO; + if (decode_bitmap4(xdr, res->oa_open_claim, ARRAY_SIZE(res->oa_open_claim)) < 0) + return -EIO; + if (decode_bitmap4(xdr, res->oa_createmode, ARRAY_SIZE(res->oa_createmode)) < 0) + return -EIO; + bitmap[2] &= ~FATTR4_WORD2_OPEN_ARGUMENTS; + } return 0; } @@ -4352,14 +4400,6 @@ static int decode_access(struct xdr_stream *xdr, u32 *supported, u32 *access) return 0; } -static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len) -{ - ssize_t ret = xdr_stream_decode_opaque_fixed(xdr, buf, len); - if (unlikely(ret < 0)) - return -EIO; - return 0; -} - static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) { return decode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE); @@ -4477,6 +4517,8 @@ static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_re if ((status = decode_attr_exclcreat_supported(xdr, bitmap, res->exclcreat_bitmask)) != 0) goto xdr_error; + if ((status = decode_attr_open_arguments(xdr, bitmap, &res->open_caps)) != 0) + goto xdr_error; status = verify_attr_len(xdr, savep, attrlen); xdr_error: dprintk("%s: xdr returned %d!\n", __func__, -status); @@ -5035,7 +5077,7 @@ static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) /* * We create the owner, so we know a proper owner.id length is 4. */ -static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) +static int decode_lock_denied(struct xdr_stream *xdr, struct file_lock *fl) { uint64_t offset, length, clientid; __be32 *p; @@ -5148,13 +5190,12 @@ static int decode_space_limit(struct xdr_stream *xdr, } static int decode_rw_delegation(struct xdr_stream *xdr, - uint32_t delegation_type, - struct nfs_openres *res) + struct nfs4_open_delegation *res) { __be32 *p; int status; - status = decode_delegation_stateid(xdr, &res->delegation); + status = decode_delegation_stateid(xdr, &res->stateid); if (unlikely(status)) return status; p = xdr_inline_decode(xdr, 4); @@ -5162,52 +5203,57 @@ static int decode_rw_delegation(struct xdr_stream *xdr, return -EIO; res->do_recall = be32_to_cpup(p); - switch (delegation_type) { + switch (res->open_delegation_type) { case NFS4_OPEN_DELEGATE_READ: - res->delegation_type = FMODE_READ; + case NFS4_OPEN_DELEGATE_READ_ATTRS_DELEG: + res->type = FMODE_READ; break; case NFS4_OPEN_DELEGATE_WRITE: - res->delegation_type = FMODE_WRITE|FMODE_READ; + case NFS4_OPEN_DELEGATE_WRITE_ATTRS_DELEG: + res->type = FMODE_WRITE|FMODE_READ; if (decode_space_limit(xdr, &res->pagemod_limit) < 0) return -EIO; } return decode_ace(xdr, NULL); } -static int decode_no_delegation(struct xdr_stream *xdr, struct nfs_openres *res) +static int decode_no_delegation(struct xdr_stream *xdr, + struct nfs4_open_delegation *res) { __be32 *p; - uint32_t why_no_delegation; p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; - why_no_delegation = be32_to_cpup(p); - switch (why_no_delegation) { + res->why_no_delegation = be32_to_cpup(p); + switch (res->why_no_delegation) { case WND4_CONTENTION: case WND4_RESOURCE: - xdr_inline_decode(xdr, 4); - /* Ignore for now */ + p = xdr_inline_decode(xdr, 4); + if (unlikely(!p)) + return -EIO; + res->will_notify = be32_to_cpup(p); } return 0; } -static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) +static int decode_delegation(struct xdr_stream *xdr, + struct nfs4_open_delegation *res) { __be32 *p; - uint32_t delegation_type; p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) return -EIO; - delegation_type = be32_to_cpup(p); - res->delegation_type = 0; - switch (delegation_type) { + res->open_delegation_type = be32_to_cpup(p); + switch (res->open_delegation_type) { case NFS4_OPEN_DELEGATE_NONE: return 0; case NFS4_OPEN_DELEGATE_READ: case NFS4_OPEN_DELEGATE_WRITE: - return decode_rw_delegation(xdr, delegation_type, res); + case NFS4_OPEN_DELEGATE_READ_ATTRS_DELEG: + case NFS4_OPEN_DELEGATE_WRITE_ATTRS_DELEG: + return decode_rw_delegation(xdr, res); case NFS4_OPEN_DELEGATE_NONE_EXT: return decode_no_delegation(xdr, res); } @@ -5248,7 +5294,7 @@ static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) for (; i < NFS4_BITMAP_SIZE; i++) res->attrset[i] = 0; - return decode_delegation(xdr, res); + return decode_delegation(xdr, &res->delegation); xdr_error: dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); return -EIO; @@ -5480,6 +5526,11 @@ static int decode_setattr(struct xdr_stream *xdr) return -EIO; } +static int decode_delegattr(struct xdr_stream *xdr) +{ + return decode_setattr(xdr); +} + static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res) { __be32 *p; @@ -7052,6 +7103,12 @@ static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, if (status) goto out; } + if (res->sattr_res) { + status = decode_delegattr(xdr); + res->sattr_ret = status; + if (status) + goto out; + } if (res->fattr) { status = decode_getfattr(xdr, res->fattr, res->server); if (status != 0) @@ -7547,72 +7604,6 @@ int nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry, return 0; } -/* - * We need to translate between nfs status return values and - * the local errno values which may not be the same. - */ -static struct { - int stat; - int errno; -} nfs_errtbl[] = { - { NFS4_OK, 0 }, - { NFS4ERR_PERM, -EPERM }, - { NFS4ERR_NOENT, -ENOENT }, - { NFS4ERR_IO, -errno_NFSERR_IO}, - { NFS4ERR_NXIO, -ENXIO }, - { NFS4ERR_ACCESS, -EACCES }, - { NFS4ERR_EXIST, -EEXIST }, - { NFS4ERR_XDEV, -EXDEV }, - { NFS4ERR_NOTDIR, -ENOTDIR }, - { NFS4ERR_ISDIR, -EISDIR }, - { NFS4ERR_INVAL, -EINVAL }, - { NFS4ERR_FBIG, -EFBIG }, - { NFS4ERR_NOSPC, -ENOSPC }, - { NFS4ERR_ROFS, -EROFS }, - { NFS4ERR_MLINK, -EMLINK }, - { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, - { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, - { NFS4ERR_DQUOT, -EDQUOT }, - { NFS4ERR_STALE, -ESTALE }, - { NFS4ERR_BADHANDLE, -EBADHANDLE }, - { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, - { NFS4ERR_NOTSUPP, -ENOTSUPP }, - { NFS4ERR_TOOSMALL, -ETOOSMALL }, - { NFS4ERR_SERVERFAULT, -EREMOTEIO }, - { NFS4ERR_BADTYPE, -EBADTYPE }, - { NFS4ERR_LOCKED, -EAGAIN }, - { NFS4ERR_SYMLINK, -ELOOP }, - { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, - { NFS4ERR_DEADLOCK, -EDEADLK }, - { NFS4ERR_NOXATTR, -ENODATA }, - { NFS4ERR_XATTR2BIG, -E2BIG }, - { -1, -EIO } -}; - -/* - * Convert an NFS error code to a local one. - * This one is used jointly by NFSv2 and NFSv3. - */ -static int -nfs4_stat_to_errno(int stat) -{ - int i; - for (i = 0; nfs_errtbl[i].stat != -1; i++) { - if (nfs_errtbl[i].stat == stat) - return nfs_errtbl[i].errno; - } - if (stat <= 10000 || stat > 10100) { - /* The server is looney tunes. */ - return -EREMOTEIO; - } - /* If we cannot translate the error, the recovery routines should - * handle it. - * Note: remaining NFSv4 error codes have values > 10000, so should - * not conflict with native Linux error codes. - */ - return -stat; -} - #ifdef CONFIG_NFS_V4_2 #include "nfs42xdr.c" #endif /* CONFIG_NFS_V4_2 */ @@ -7711,6 +7702,7 @@ const struct rpc_procinfo nfs4_procedures[] = { PROC42(CLONE, enc_clone, dec_clone), PROC42(COPY, enc_copy, dec_copy), PROC42(OFFLOAD_CANCEL, enc_offload_cancel, dec_offload_cancel), + PROC42(OFFLOAD_STATUS, enc_offload_status, dec_offload_status), PROC42(COPY_NOTIFY, enc_copy_notify, dec_copy_notify), PROC(LOOKUPP, enc_lookupp, dec_lookupp), PROC42(LAYOUTERROR, enc_layouterror, dec_layouterror), |