diff options
| -rw-r--r-- | fs/nfs/nfs3xdr.c | 833 | ||||
| -rw-r--r-- | include/linux/nfs3.h | 2 |
2 files changed, 832 insertions, 3 deletions
diff --git a/fs/nfs/nfs3xdr.c b/fs/nfs/nfs3xdr.c index f6cc60f06dac..3d1043f7667c 100644 --- a/fs/nfs/nfs3xdr.c +++ b/fs/nfs/nfs3xdr.c @@ -37,6 +37,7 @@ #define NFS3_filename_sz (1+(NFS3_MAXNAMLEN>>2)) #define NFS3_path_sz (1+(NFS3_MAXPATHLEN>>2)) #define NFS3_fattr_sz (21) +#define NFS3_cookieverf_sz (NFS3_COOKIEVERFSIZE>>2) #define NFS3_wcc_attr_sz (6) #define NFS3_pre_op_attr_sz (1+NFS3_wcc_attr_sz) #define NFS3_post_op_attr_sz (1+NFS3_fattr_sz) @@ -59,7 +60,8 @@ #define NFS3_mknodargs_sz (NFS3_diropargs_sz+2+NFS3_sattr_sz) #define NFS3_renameargs_sz (NFS3_diropargs_sz+NFS3_diropargs_sz) #define NFS3_linkargs_sz (NFS3_fh_sz+NFS3_diropargs_sz) -#define NFS3_readdirargs_sz (NFS3_fh_sz+2) +#define NFS3_readdirargs_sz (NFS3_fh_sz+NFS3_cookieverf_sz+3) +#define NFS3_readdirplusargs_sz (NFS3_fh_sz+NFS3_cookieverf_sz+4) #define NFS3_commitargs_sz (NFS3_fh_sz+3) #define NFS3_attrstat_sz (1+NFS3_fattr_sz) @@ -108,6 +110,22 @@ static void print_overflow_msg(const char *func, const struct xdr_stream *xdr) } /* + * While encoding arguments, set up the reply buffer in advance to + * receive reply data directly into the page cache. + */ +static void prepare_reply_buffer(struct rpc_rqst *req, struct page **pages, + unsigned int base, unsigned int len, + unsigned int bufsize) +{ + struct rpc_auth *auth = req->rq_cred->cr_auth; + unsigned int replen; + + replen = RPC_REPHDRSIZE + auth->au_rslack + bufsize; + xdr_inline_pages(&req->rq_rcv_buf, replen << 2, pages, base, len); +} + + +/* * Common NFS XDR functions as inlines */ static inline __be32 * @@ -153,7 +171,7 @@ out_overflow: * Encode/decode time. */ static inline __be32 * -xdr_encode_time3(__be32 *p, struct timespec *timep) +xdr_encode_time3(__be32 *p, const struct timespec *timep) { *p++ = htonl(timep->tv_sec); *p++ = htonl(timep->tv_nsec); @@ -205,7 +223,7 @@ xdr_decode_fattr(__be32 *p, struct nfs_fattr *fattr) } static inline __be32 * -xdr_encode_sattr(__be32 *p, struct iattr *attr) +xdr_encode_sattr(__be32 *p, const struct iattr *attr) { if (attr->ia_valid & ATTR_MODE) { *p++ = xdr_one; @@ -306,6 +324,243 @@ xdr_decode_wcc_data(__be32 *p, struct nfs_fattr *fattr) return xdr_decode_post_op_attr(p, fattr); } + +/* + * Encode/decode NFSv3 basic data types + * + * Basic NFSv3 data types are defined in section 2.5 of RFC 1813: + * "NFS Version 3 Protocol Specification". + * + * Not all basic data types have their own encoding and decoding + * functions. For run-time efficiency, some data types are encoded + * or decoded inline. + */ + +static void encode_uint32(struct xdr_stream *xdr, u32 value) +{ + __be32 *p = xdr_reserve_space(xdr, 4); + *p = cpu_to_be32(value); +} + +/* + * filename3 + * + * typedef string filename3<>; + */ +static void encode_filename3(struct xdr_stream *xdr, + const char *name, u32 length) +{ + __be32 *p; + + BUG_ON(length > NFS3_MAXNAMLEN); + p = xdr_reserve_space(xdr, 4 + length); + xdr_encode_opaque(p, name, length); +} + +/* + * nfspath3 + * + * typedef string nfspath3<>; + */ +static void encode_nfspath3(struct xdr_stream *xdr, struct page **pages, + const u32 length) +{ + BUG_ON(length > NFS3_MAXPATHLEN); + encode_uint32(xdr, length); + xdr_write_pages(xdr, pages, 0, length); +} + +/* + * cookie3 + * + * typedef uint64 cookie3 + */ +static __be32 *xdr_encode_cookie3(__be32 *p, u64 cookie) +{ + return xdr_encode_hyper(p, cookie); +} + +/* + * cookieverf3 + * + * typedef opaque cookieverf3[NFS3_COOKIEVERFSIZE]; + */ +static __be32 *xdr_encode_cookieverf3(__be32 *p, const __be32 *verifier) +{ + memcpy(p, verifier, NFS3_COOKIEVERFSIZE); + return p + XDR_QUADLEN(NFS3_COOKIEVERFSIZE); +} + +/* + * createverf3 + * + * typedef opaque createverf3[NFS3_CREATEVERFSIZE]; + */ +static void encode_createverf3(struct xdr_stream *xdr, const __be32 *verifier) +{ + __be32 *p; + + p = xdr_reserve_space(xdr, NFS3_CREATEVERFSIZE); + memcpy(p, verifier, NFS3_CREATEVERFSIZE); +} + +/* + * ftype3 + * + * enum ftype3 { + * NF3REG = 1, + * NF3DIR = 2, + * NF3BLK = 3, + * NF3CHR = 4, + * NF3LNK = 5, + * NF3SOCK = 6, + * NF3FIFO = 7 + * }; + */ +static void encode_ftype3(struct xdr_stream *xdr, const u32 type) +{ + BUG_ON(type > NF3FIFO); + encode_uint32(xdr, type); +} + +/* + * specdata3 + * + * struct specdata3 { + * uint32 specdata1; + * uint32 specdata2; + * }; + */ +static void encode_specdata3(struct xdr_stream *xdr, const dev_t rdev) +{ + __be32 *p; + + p = xdr_reserve_space(xdr, 8); + *p++ = cpu_to_be32(MAJOR(rdev)); + *p = cpu_to_be32(MINOR(rdev)); +} + +/* + * nfs_fh3 + * + * struct nfs_fh3 { + * opaque data<NFS3_FHSIZE>; + * }; + */ +static void encode_nfs_fh3(struct xdr_stream *xdr, const struct nfs_fh *fh) +{ + __be32 *p; + + BUG_ON(fh->size > NFS3_FHSIZE); + p = xdr_reserve_space(xdr, 4 + fh->size); + xdr_encode_opaque(p, fh->data, fh->size); +} + +/* + * sattr3 + * + * enum time_how { + * DONT_CHANGE = 0, + * SET_TO_SERVER_TIME = 1, + * SET_TO_CLIENT_TIME = 2 + * }; + * + * union set_mode3 switch (bool set_it) { + * case TRUE: + * mode3 mode; + * default: + * void; + * }; + * + * union set_uid3 switch (bool set_it) { + * case TRUE: + * uid3 uid; + * default: + * void; + * }; + * + * union set_gid3 switch (bool set_it) { + * case TRUE: + * gid3 gid; + * default: + * void; + * }; + * + * union set_size3 switch (bool set_it) { + * case TRUE: + * size3 size; + * default: + * void; + * }; + * + * union set_atime switch (time_how set_it) { + * case SET_TO_CLIENT_TIME: + * nfstime3 atime; + * default: + * void; + * }; + * + * union set_mtime switch (time_how set_it) { + * case SET_TO_CLIENT_TIME: + * nfstime3 mtime; + * default: + * void; + * }; + * + * struct sattr3 { + * set_mode3 mode; + * set_uid3 uid; + * set_gid3 gid; + * set_size3 size; + * set_atime atime; + * set_mtime mtime; + * }; + */ +static void encode_sattr3(struct xdr_stream *xdr, const struct iattr *attr) +{ + u32 nbytes; + __be32 *p; + + /* + * In order to make only a single xdr_reserve_space() call, + * pre-compute the total number of bytes to be reserved. + * Six boolean values, one for each set_foo field, are always + * present in the encoded result, so start there. + */ + nbytes = 6 * 4; + if (attr->ia_valid & ATTR_MODE) + nbytes += 4; + if (attr->ia_valid & ATTR_UID) + nbytes += 4; + if (attr->ia_valid & ATTR_GID) + nbytes += 4; + if (attr->ia_valid & ATTR_SIZE) + nbytes += 8; + if (attr->ia_valid & ATTR_ATIME_SET) + nbytes += 8; + if (attr->ia_valid & ATTR_MTIME_SET) + nbytes += 8; + p = xdr_reserve_space(xdr, nbytes); + + xdr_encode_sattr(p, attr); +} + +/* + * diropargs3 + * + * struct diropargs3 { + * nfs_fh3 dir; + * filename3 name; + * }; + */ +static void encode_diropargs3(struct xdr_stream *xdr, const struct nfs_fh *fh, + const char *name, u32 length) +{ + encode_nfs_fh3(xdr, fh); + encode_filename3(xdr, name, length); +} + + /* * NFS encode functions */ @@ -322,6 +577,23 @@ nfs3_xdr_fhandle(struct rpc_rqst *req, __be32 *p, struct nfs_fh *fh) } /* + * 3.3.1 GETATTR3args + * + * struct GETATTR3args { + * nfs_fh3 object; + * }; + */ +static int nfs3_xdr_enc_getattr3args(struct rpc_rqst *req, __be32 *p, + const struct nfs_fh *fh) +{ + struct xdr_stream xdr; + + xdr_init_encode(&xdr, &req->rq_snd_buf, p); + encode_nfs_fh3(&xdr, fh); + return 0; +} + +/* * Encode SETATTR arguments */ static int @@ -337,6 +609,49 @@ nfs3_xdr_sattrargs(struct rpc_rqst *req, __be32 *p, struct nfs3_sattrargs *args) } /* + * 3.3.2 SETATTR3args + * + * union sattrguard3 switch (bool check) { + * case TRUE: + * nfstime3 obj_ctime; + * case FALSE: + * void; + * }; + * + * struct SETATTR3args { + * nfs_fh3 object; + * sattr3 new_attributes; + * sattrguard3 guard; + * }; + */ +static void encode_sattrguard3(struct xdr_stream *xdr, + const struct nfs3_sattrargs *args) +{ + __be32 *p; + + if (args->guard) { + p = xdr_reserve_space(xdr, 4 + 8); + *p++ = xdr_one; + xdr_encode_time3(p, &args->guardtime); + } else { + p = xdr_reserve_space(xdr, 4); + *p = xdr_zero; + } +} + +static int nfs3_xdr_enc_setattr3args(struct rpc_rqst *req, __be32 *p, + const struct nfs3_sattrargs *args) +{ + struct xdr_stream xdr; + + xdr_init_encode(&xdr, &req->rq_snd_buf, p); + encode_nfs_fh3(&xdr, args->fh); + encode_sattr3(&xdr, args->sattr); + encode_sattrguard3(&xdr, args); + return 0; +} + +/* * Encode directory ops argument */ static int @@ -349,6 +664,23 @@ nfs3_xdr_diropargs(struct rpc_rqst *req, __be32 *p, struct nfs3_diropargs *args) } /* + * 3.3.3 LOOKUP3args + * + * struct LOOKUP3args { + * diropargs3 what; + * }; + */ +static int nfs3_xdr_enc_lookup3args(struct rpc_rqst *req, __be32 *p, + const struct nfs3_diropargs *args) +{ + struct xdr_stream xdr; + + xdr_init_encode(&xdr, &req->rq_snd_buf, p); + encode_diropargs3(&xdr, args->fh, args->name, args->len); + return 0; +} + +/* * Encode REMOVE argument */ static int @@ -373,6 +705,50 @@ nfs3_xdr_accessargs(struct rpc_rqst *req, __be32 *p, struct nfs3_accessargs *arg } /* + * 3.3.4 ACCESS3args + * + * struct ACCESS3args { + * nfs_fh3 object; + * uint32 access; + * }; + */ +static void encode_access3args(struct xdr_stream *xdr, + const struct nfs3_accessargs *args) +{ + encode_nfs_fh3(xdr, args->fh); + encode_uint32(xdr, args->access); +} + +static int nfs3_xdr_enc_access3args(struct rpc_rqst *req, __be32 *p, + const struct nfs3_accessargs *args) +{ + struct xdr_stream xdr; + + xdr_init_encode(&xdr, &req->rq_snd_buf, p); + encode_access3args(&xdr, args); + return 0; +} + +/* + * 3.3.5 READLINK3args + * + * struct READLINK3args { + * nfs_fh3 symlink; + * }; + */ +static int nfs3_xdr_enc_readlink3args(struct rpc_rqst *req, __be32 *p, + const struct nfs3_readlinkargs *args) +{ + struct xdr_stream xdr; + + xdr_init_encode(&xdr, &req->rq_snd_buf, p); + encode_nfs_fh3(&xdr, args->fh); + prepare_reply_buffer(req, args->pages, args->pgbase, + args->pglen, NFS3_readlinkres_sz); + return 0; +} + +/* * Arguments to a READ call. Since we read data directly into the page * cache, we also set up the reply iovec here so that iov[1] points * exactly to the page we want to fetch. @@ -398,6 +774,40 @@ nfs3_xdr_readargs(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args) } /* + * 3.3.6 READ3args + * + * struct READ3args { + * nfs_fh3 file; + * offset3 offset; + * count3 count; + * }; + */ +static void encode_read3args(struct xdr_stream *xdr, + const struct nfs_readargs *args) +{ + __be32 *p; + + encode_nfs_fh3(xdr, args->fh); + + p = xdr_reserve_space(xdr, 8 + 4); + p = xdr_encode_hyper(p, args->offset); + *p = cpu_to_be32(args->count); +} + +static int nfs3_xdr_enc_read3args(struct rpc_rqst *req, __be32 *p, + const struct nfs_readargs *args) +{ + struct xdr_stream xdr; + + xdr_init_encode(&xdr, &req->rq_snd_buf, p); + encode_read3args(&xdr, args); + prepare_reply_buffer(req, args->pages, args->pgbase, + args->count, NFS3_readres_sz); + req->rq_rcv_buf.flags |= XDRBUF_READ; + return 0; +} + +/* * Write arguments. Splice the buffer to be written into the iovec. */ static int @@ -420,6 +830,52 @@ nfs3_xdr_writeargs(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) } /* + * 3.3.7 WRITE3args + * + * enum stable_how { + * UNSTABLE = 0, + * DATA_SYNC = 1, + * FILE_SYNC = 2 + * }; + * + * struct WRITE3args { + * nfs_fh3 file; + * offset3 offset; + * count3 count; + * stable_how stable; + * opaque data<>; + * }; + */ +static void encode_write3args(struct xdr_stream *xdr, + const struct nfs_writeargs *args) +{ + __be32 *p; + + encode_nfs_fh3(xdr, args->fh); + + p = xdr_reserve_space(xdr, 8 + 4 + 4 + 4); + p = xdr_encode_hyper(p, args->offset); + *p++ = cpu_to_be32(args->count); + + BUG_ON(args->stable > NFS_FILE_SYNC); + *p++ = cpu_to_be32(args->stable); + + *p = cpu_to_be32(args->count); + xdr_write_pages(xdr, args->pages, args->pgbase, args->count); +} + +static int nfs3_xdr_enc_write3args(struct rpc_rqst *req, __be32 *p, + const struct nfs_writeargs *args) +{ + struct xdr_stream xdr; + + xdr_init_encode(&xdr, &req->rq_snd_buf, p); + encode_write3args(&xdr, args); + xdr.buf->flags |= XDRBUF_WRITE; + return 0; +} + +/* * Encode CREATE arguments */ static int @@ -440,6 +896,56 @@ nfs3_xdr_createargs(struct rpc_rqst *req, __be32 *p, struct nfs3_createargs *arg } /* + * 3.3.8 CREATE3args + * + * enum createmode3 { + * UNCHECKED = 0, + * GUARDED = 1, + * EXCLUSIVE = 2 + * }; + * + * union createhow3 switch (createmode3 mode) { + * case UNCHECKED: + * case GUARDED: + * sattr3 obj_attributes; + * case EXCLUSIVE: + * createverf3 verf; + * }; + * + * struct CREATE3args { + * diropargs3 where; + * createhow3 how; + * }; + */ +static void encode_createhow3(struct xdr_stream *xdr, + const struct nfs3_createargs *args) +{ + encode_uint32(xdr, args->createmode); + switch (args->createmode) { + case NFS3_CREATE_UNCHECKED: + case NFS3_CREATE_GUARDED: + encode_sattr3(xdr, args->sattr); + break; + case NFS3_CREATE_EXCLUSIVE: + encode_createverf3(xdr, args->verifier); + break; + default: + BUG(); + } +} + +static int nfs3_xdr_enc_create3args(struct rpc_rqst *req, __be32 *p, + const struct nfs3_createargs *args) +{ + struct xdr_stream xdr; + + xdr_init_encode(&xdr, &req->rq_snd_buf, p); + encode_diropargs3(&xdr, args->fh, args->name, args->len); + encode_createhow3(&xdr, args); + return 0; +} + +/* * Encode MKDIR arguments */ static int @@ -453,6 +959,25 @@ nfs3_xdr_mkdirargs(struct rpc_rqst *req, __be32 *p, struct nfs3_mkdirargs *args) } /* + * 3.3.9 MKDIR3args + * + * struct MKDIR3args { + * diropargs3 where; + * sattr3 attributes; + * }; + */ +static int nfs3_xdr_enc_mkdir3args(struct rpc_rqst *req, __be32 *p, + const struct nfs3_mkdirargs *args) +{ + struct xdr_stream xdr; + + xdr_init_encode(&xdr, &req->rq_snd_buf, p); + encode_diropargs3(&xdr, args->fh, args->name, args->len); + encode_sattr3(&xdr, args->sattr); + return 0; +} + +/* * Encode SYMLINK arguments */ static int @@ -470,6 +995,37 @@ nfs3_xdr_symlinkargs(struct rpc_rqst *req, __be32 *p, struct nfs3_symlinkargs *a } /* + * 3.3.10 SYMLINK3args + * + * struct symlinkdata3 { + * sattr3 symlink_attributes; + * nfspath3 symlink_data; + * }; + * + * struct SYMLINK3args { + * diropargs3 where; + * symlinkdata3 symlink; + * }; + */ +static void encode_symlinkdata3(struct xdr_stream *xdr, + const struct nfs3_symlinkargs *args) +{ + encode_sattr3(xdr, args->sattr); + encode_nfspath3(xdr, args->pages, args->pathlen); +} + +static int nfs3_xdr_enc_symlink3args(struct rpc_rqst *req, __be32 *p, + const struct nfs3_symlinkargs *args) +{ + struct xdr_stream xdr; + + xdr_init_encode(&xdr, &req->rq_snd_buf, p); + encode_diropargs3(&xdr, args->fromfh, args->fromname, args->fromlen); + encode_symlinkdata3(&xdr, args); + return 0; +} + +/* * Encode MKNOD arguments */ static int @@ -489,6 +1045,86 @@ nfs3_xdr_mknodargs(struct rpc_rqst *req, __be32 *p, struct nfs3_mknodargs *args) } /* + * 3.3.11 MKNOD3args + * + * struct devicedata3 { + * sattr3 dev_attributes; + * specdata3 spec; + * }; + * + * union mknoddata3 switch (ftype3 type) { + * case NF3CHR: + * case NF3BLK: + * devicedata3 device; + * case NF3SOCK: + * case NF3FIFO: + * sattr3 pipe_attributes; + * default: + * void; + * }; + * + * struct MKNOD3args { + * diropargs3 where; + * mknoddata3 what; + * }; + */ +static void encode_devicedata3(struct xdr_stream *xdr, + const struct nfs3_mknodargs *args) +{ + encode_sattr3(xdr, args->sattr); + encode_specdata3(xdr, args->rdev); +} + +static void encode_mknoddata3(struct xdr_stream *xdr, + const struct nfs3_mknodargs *args) +{ + encode_ftype3(xdr, args->type); + switch (args->type) { + case NF3CHR: + case NF3BLK: + encode_devicedata3(xdr, args); + break; + case NF3SOCK: + case NF3FIFO: + encode_sattr3(xdr, args->sattr); + break; + case NF3REG: + case NF3DIR: + break; + default: + BUG(); + } +} + +static int nfs3_xdr_enc_mknod3args(struct rpc_rqst *req, __be32 *p, + const struct nfs3_mknodargs *args) +{ + struct xdr_stream xdr; + + xdr_init_encode(&xdr, &req->rq_snd_buf, p); + encode_diropargs3(&xdr, args->fh, args->name, args->len); + encode_mknoddata3(&xdr, args); + return 0; +} + +/* + * 3.3.12 REMOVE3args + * + * struct REMOVE3args { + * diropargs3 object; + * }; + */ +static int nfs3_xdr_enc_remove3args(struct rpc_rqst *req, __be32 *p, + const struct nfs_removeargs *args) +{ + struct xdr_stream xdr; + + xdr_init_encode(&xdr, &req->rq_snd_buf, p); + encode_diropargs3(&xdr, args->fh, args->name.name, args->name.len); + return 0; +} + +/* * Encode RENAME arguments */ static int @@ -503,6 +1139,27 @@ nfs3_xdr_renameargs(struct rpc_rqst *req, __be32 *p, struct nfs_renameargs *args } /* + * 3.3.14 RENAME3args + * + * struct RENAME3args { + * diropargs3 from; + * diropargs3 to; + * }; + */ +static int nfs3_xdr_enc_rename3args(struct rpc_rqst *req, __be32 *p, + const struct nfs_renameargs *args) +{ + const struct qstr *old = args->old_name; + const struct qstr *new = args->new_name; + struct xdr_stream xdr; + + xdr_init_encode(&xdr, &req->rq_snd_buf, p); + encode_diropargs3(&xdr, args->old_dir, old->name, old->len); + encode_diropargs3(&xdr, args->new_dir, new->name, new->len); + return 0; +} + +/* * Encode LINK arguments */ static int @@ -516,6 +1173,25 @@ nfs3_xdr_linkargs(struct rpc_rqst *req, __be32 *p, struct nfs3_linkargs *args) } /* + * 3.3.15 LINK3args + * + * struct LINK3args { + * nfs_fh3 file; + * diropargs3 link; + * }; + */ +static int nfs3_xdr_enc_link3args(struct rpc_rqst *req, __be32 *p, + const struct nfs3_linkargs *args) +{ + struct xdr_stream xdr; + + xdr_init_encode(&xdr, &req->rq_snd_buf, p); + encode_nfs_fh3(&xdr, args->fromfh); + encode_diropargs3(&xdr, args->tofh, args->toname, args->tolen); + return 0; +} + +/* * Encode arguments to readdir call */ static int @@ -544,6 +1220,84 @@ nfs3_xdr_readdirargs(struct rpc_rqst *req, __be32 *p, struct nfs3_readdirargs *a } /* + * 3.3.16 READDIR3args + * + * struct READDIR3args { + * nfs_fh3 dir; + * cookie3 cookie; + * cookieverf3 cookieverf; + * count3 count; + * }; + */ +static void encode_readdir3args(struct xdr_stream *xdr, + const struct nfs3_readdirargs *args) +{ + __be32 *p; + + encode_nfs_fh3(xdr, args->fh); + + p = xdr_reserve_space(xdr, 8 + NFS3_COOKIEVERFSIZE + 4); + p = xdr_encode_cookie3(p, args->cookie); + p = xdr_encode_cookieverf3(p, args->verf); + *p = cpu_to_be32(args->count); +} + +static int nfs3_xdr_enc_readdir3args(struct rpc_rqst *req, __be32 *p, + const struct nfs3_readdirargs *args) +{ + struct xdr_stream xdr; + + xdr_init_encode(&xdr, &req->rq_snd_buf, p); + encode_readdir3args(&xdr, args); + prepare_reply_buffer(req, args->pages, 0, + args->count, NFS3_readdirres_sz); + return 0; +} + +/* + * 3.3.17 READDIRPLUS3args + * + * struct READDIRPLUS3args { + * nfs_fh3 dir; + * cookie3 cookie; + * cookieverf3 cookieverf; + * count3 dircount; + * count3 maxcount; + * }; + */ +static void encode_readdirplus3args(struct xdr_stream *xdr, + const struct nfs3_readdirargs *args) +{ + __be32 *p; + + encode_nfs_fh3(xdr, args->fh); + + p = xdr_reserve_space(xdr, 8 + NFS3_COOKIEVERFSIZE + 4 + 4); + p = xdr_encode_cookie3(p, args->cookie); + p = xdr_encode_cookieverf3(p, args->verf); + + /* + * readdirplus: need dircount + buffer size. + * We just make sure we make dircount big enough + */ + *p++ = cpu_to_be32(args->count >> 3); + + *p = cpu_to_be32(args->count); +} + +static int nfs3_xdr_enc_readdirplus3args(struct rpc_rqst *req, __be32 *p, + const struct nfs3_readdirargs *args) +{ + struct xdr_stream xdr; + + xdr_init_encode(&xdr, &req->rq_snd_buf, p); + encode_readdirplus3args(&xdr, args); + prepare_reply_buffer(req, args->pages, 0, + args->count, NFS3_readdirres_sz); + return 0; +} + +/* * Decode the result of a readdir call. * We just check for syntactical correctness. */ @@ -674,6 +1428,37 @@ nfs3_xdr_commitargs(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) return 0; } +/* + * 3.3.21 COMMIT3args + * + * struct COMMIT3args { + * nfs_fh3 file; + * offset3 offset; + * count3 count; + * }; + */ +static void encode_commit3args(struct xdr_stream *xdr, + const struct nfs_writeargs *args) +{ + __be32 *p; + + encode_nfs_fh3(xdr, args->fh); + + p = xdr_reserve_space(xdr, 8 + 4); + p = xdr_encode_hyper(p, args->offset); + *p = cpu_to_be32(args->count); +} + +static int nfs3_xdr_enc_commit3args(struct rpc_rqst *req, __be32 *p, + const struct nfs_writeargs *args) +{ + struct xdr_stream xdr; + + xdr_init_encode(&xdr, &req->rq_snd_buf, p); + encode_commit3args(&xdr, args); + return 0; +} + #ifdef CONFIG_NFS_V3_ACL /* * Encode GETACL arguments @@ -699,6 +1484,21 @@ nfs3_xdr_getaclargs(struct rpc_rqst *req, __be32 *p, return 0; } +static int nfs3_xdr_enc_getacl3args(struct rpc_rqst *req, __be32 *p, + const struct nfs3_getaclargs *args) +{ + struct xdr_stream xdr; + + xdr_init_encode(&xdr, &req->rq_snd_buf, p); + encode_nfs_fh3(&xdr, args->fh); + encode_uint32(&xdr, args->mask); + if (args->mask & (NFS_ACL | NFS_DFACL)) + prepare_reply_buffer(req, args->pages, 0, + NFSACL_MAXPAGES << PAGE_SHIFT, + ACL3_getaclres_sz); + return 0; +} + /* * Encode SETACL arguments */ @@ -731,6 +1531,33 @@ nfs3_xdr_setaclargs(struct rpc_rqst *req, __be32 *p, NFS_ACL_DEFAULT); return (err > 0) ? 0 : err; } + +static int nfs3_xdr_enc_setacl3args(struct rpc_rqst *req, __be32 *p, + const struct nfs3_setaclargs *args) +{ + struct xdr_stream xdr; + unsigned int base; + int error; + + xdr_init_encode(&xdr, &req->rq_snd_buf, p); + encode_nfs_fh3(&xdr, NFS_FH(args->inode)); + encode_uint32(&xdr, args->mask); + if (args->npages != 0) + xdr_write_pages(&xdr, args->pages, 0, args->len); + + base = req->rq_slen; + error = nfsacl_encode(xdr.buf, base, args->inode, + (args->mask & NFS_ACL) ? + args->acl_access : NULL, 1, 0); + BUG_ON(error < 0); + error = nfsacl_encode(xdr.buf, base + error, args->inode, + (args->mask & NFS_DFACL) ? + args->acl_default : NULL, 1, + NFS_ACL_DEFAULT); + BUG_ON(error < 0); + return 0; +} + #endif /* CONFIG_NFS_V3_ACL */ /* diff --git a/include/linux/nfs3.h b/include/linux/nfs3.h index ac33806ec7f9..e2ee14fd0083 100644 --- a/include/linux/nfs3.h +++ b/include/linux/nfs3.h @@ -11,6 +11,8 @@ #define NFS3_MAXGROUPS 16 #define NFS3_FHSIZE 64 #define NFS3_COOKIESIZE 4 +#define NFS3_CREATEVERFSIZE 8 +#define NFS3_COOKIEVERFSIZE 8 #define NFS3_FIFO_DEV (-1) #define NFS3MODE_FMT 0170000 #define NFS3MODE_DIR 0040000 |