diff options
Diffstat (limited to 'fs/nfsd')
-rw-r--r-- | fs/nfsd/Kconfig | 1 | ||||
-rw-r--r-- | fs/nfsd/blocklayout.c | 25 | ||||
-rw-r--r-- | fs/nfsd/export.c | 1 | ||||
-rw-r--r-- | fs/nfsd/nfs2acl.c | 1 | ||||
-rw-r--r-- | fs/nfsd/nfs3acl.c | 1 | ||||
-rw-r--r-- | fs/nfsd/nfs3proc.c | 8 | ||||
-rw-r--r-- | fs/nfsd/nfs4callback.c | 19 | ||||
-rw-r--r-- | fs/nfsd/nfs4idmap.c | 8 | ||||
-rw-r--r-- | fs/nfsd/nfs4layouts.c | 6 | ||||
-rw-r--r-- | fs/nfsd/nfs4proc.c | 88 | ||||
-rw-r--r-- | fs/nfsd/nfs4state.c | 12 | ||||
-rw-r--r-- | fs/nfsd/nfs4xdr.c | 33 | ||||
-rw-r--r-- | fs/nfsd/nfscache.c | 2 | ||||
-rw-r--r-- | fs/nfsd/nfsctl.c | 70 | ||||
-rw-r--r-- | fs/nfsd/nfsd.h | 6 | ||||
-rw-r--r-- | fs/nfsd/nfsproc.c | 8 | ||||
-rw-r--r-- | fs/nfsd/nfssvc.c | 18 | ||||
-rw-r--r-- | fs/nfsd/state.h | 1 | ||||
-rw-r--r-- | fs/nfsd/vfs.c | 104 | ||||
-rw-r--r-- | fs/nfsd/vfs.h | 9 |
20 files changed, 260 insertions, 161 deletions
diff --git a/fs/nfsd/Kconfig b/fs/nfsd/Kconfig index 47febcf99185..20b1c17320d5 100644 --- a/fs/nfsd/Kconfig +++ b/fs/nfsd/Kconfig @@ -104,6 +104,7 @@ config NFSD_SCSILAYOUT depends on NFSD_V4 && BLOCK select NFSD_PNFS select EXPORTFS_BLOCK_OPS + select BLK_SCSI_REQUEST help This option enables support for the exporting pNFS SCSI layouts in the kernel's NFS server. The pNFS SCSI layout enables NFS diff --git a/fs/nfsd/blocklayout.c b/fs/nfsd/blocklayout.c index 0780ff864539..92b4b41d19d2 100644 --- a/fs/nfsd/blocklayout.c +++ b/fs/nfsd/blocklayout.c @@ -10,6 +10,7 @@ #include <linux/nfsd/debug.h> #include <scsi/scsi_proto.h> #include <scsi/scsi_common.h> +#include <scsi/scsi_request.h> #include "blocklayoutxdr.h" #include "pnfs.h" @@ -23,7 +24,7 @@ nfsd4_block_proc_layoutget(struct inode *inode, const struct svc_fh *fhp, { struct nfsd4_layout_seg *seg = &args->lg_seg; struct super_block *sb = inode->i_sb; - u32 block_size = (1 << inode->i_blkbits); + u32 block_size = i_blocksize(inode); struct pnfs_block_extent *bex; struct iomap iomap; u32 device_generation = 0; @@ -180,7 +181,7 @@ nfsd4_block_proc_layoutcommit(struct inode *inode, int nr_iomaps; nr_iomaps = nfsd4_block_decode_layoutupdate(lcp->lc_up_layout, - lcp->lc_up_len, &iomaps, 1 << inode->i_blkbits); + lcp->lc_up_len, &iomaps, i_blocksize(inode)); if (nr_iomaps < 0) return nfserrno(nr_iomaps); @@ -213,6 +214,7 @@ static int nfsd4_scsi_identify_device(struct block_device *bdev, { struct request_queue *q = bdev->bd_disk->queue; struct request *rq; + struct scsi_request *req; size_t bufflen = 252, len, id_len; u8 *buf, *d, type, assoc; int error; @@ -221,23 +223,24 @@ static int nfsd4_scsi_identify_device(struct block_device *bdev, if (!buf) return -ENOMEM; - rq = blk_get_request(q, READ, GFP_KERNEL); + rq = blk_get_request(q, REQ_OP_SCSI_IN, GFP_KERNEL); if (IS_ERR(rq)) { error = -ENOMEM; goto out_free_buf; } - blk_rq_set_block_pc(rq); + req = scsi_req(rq); + scsi_req_init(rq); error = blk_rq_map_kern(q, rq, buf, bufflen, GFP_KERNEL); if (error) goto out_put_request; - rq->cmd[0] = INQUIRY; - rq->cmd[1] = 1; - rq->cmd[2] = 0x83; - rq->cmd[3] = bufflen >> 8; - rq->cmd[4] = bufflen & 0xff; - rq->cmd_len = COMMAND_SIZE(INQUIRY); + req->cmd[0] = INQUIRY; + req->cmd[1] = 1; + req->cmd[2] = 0x83; + req->cmd[3] = bufflen >> 8; + req->cmd[4] = bufflen & 0xff; + req->cmd_len = COMMAND_SIZE(INQUIRY); error = blk_execute_rq(rq->q, NULL, rq, 1); if (error) { @@ -372,7 +375,7 @@ nfsd4_scsi_proc_layoutcommit(struct inode *inode, int nr_iomaps; nr_iomaps = nfsd4_scsi_decode_layoutupdate(lcp->lc_up_layout, - lcp->lc_up_len, &iomaps, 1 << inode->i_blkbits); + lcp->lc_up_len, &iomaps, i_blocksize(inode)); if (nr_iomaps < 0) return nfserrno(nr_iomaps); diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c index 43e109cc0ccc..e71f11b1a180 100644 --- a/fs/nfsd/export.c +++ b/fs/nfsd/export.c @@ -1102,6 +1102,7 @@ static struct flags { { NFSEXP_NOAUTHNLM, {"insecure_locks", ""}}, { NFSEXP_V4ROOT, {"v4root", ""}}, { NFSEXP_PNFS, {"pnfs", ""}}, + { NFSEXP_SECURITY_LABEL, {"security_label", ""}}, { 0, {"", ""}} }; diff --git a/fs/nfsd/nfs2acl.c b/fs/nfsd/nfs2acl.c index d08cd88155c7..838f90f3f890 100644 --- a/fs/nfsd/nfs2acl.c +++ b/fs/nfsd/nfs2acl.c @@ -376,5 +376,4 @@ struct svc_version nfsd_acl_version2 = { .vs_proc = nfsd_acl_procedures2, .vs_dispatch = nfsd_dispatch, .vs_xdrsize = NFS3_SVC_XDRSIZE, - .vs_hidden = 0, }; diff --git a/fs/nfsd/nfs3acl.c b/fs/nfsd/nfs3acl.c index 0c890347cde3..dcb5f79076c0 100644 --- a/fs/nfsd/nfs3acl.c +++ b/fs/nfsd/nfs3acl.c @@ -266,6 +266,5 @@ struct svc_version nfsd_acl_version3 = { .vs_proc = nfsd_acl_procedures3, .vs_dispatch = nfsd_dispatch, .vs_xdrsize = NFS3_SVC_XDRSIZE, - .vs_hidden = 0, }; diff --git a/fs/nfsd/nfs3proc.c b/fs/nfsd/nfs3proc.c index d818e4ffd79f..045c9081eabe 100644 --- a/fs/nfsd/nfs3proc.c +++ b/fs/nfsd/nfs3proc.c @@ -193,11 +193,9 @@ nfsd3_proc_write(struct svc_rqst *rqstp, struct nfsd3_writeargs *argp, fh_copy(&resp->fh, &argp->fh); resp->committed = argp->stable; - nfserr = nfsd_write(rqstp, &resp->fh, NULL, - argp->offset, - rqstp->rq_vec, argp->vlen, - &cnt, - &resp->committed); + nfserr = nfsd_write(rqstp, &resp->fh, argp->offset, + rqstp->rq_vec, argp->vlen, + &cnt, resp->committed); resp->count = cnt; RETURN_STATUS(nfserr); } diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c index eb78109d666c..0274db6e65d0 100644 --- a/fs/nfsd/nfs4callback.c +++ b/fs/nfsd/nfs4callback.c @@ -303,6 +303,7 @@ static int decode_cb_compound4res(struct xdr_stream *xdr, p = xdr_inline_decode(xdr, length + 4); if (unlikely(p == NULL)) goto out_overflow; + p += XDR_QUADLEN(length); hdr->nops = be32_to_cpup(p); return 0; out_overflow: @@ -396,13 +397,10 @@ static int decode_cb_sequence4resok(struct xdr_stream *xdr, struct nfsd4_callback *cb) { struct nfsd4_session *session = cb->cb_clp->cl_cb_session; - struct nfs4_sessionid id; - int status; + int status = -ESERVERFAULT; __be32 *p; u32 dummy; - status = -ESERVERFAULT; - /* * If the server returns different values for sessionID, slotID or * sequence number, the server is looney tunes. @@ -410,9 +408,8 @@ static int decode_cb_sequence4resok(struct xdr_stream *xdr, p = xdr_inline_decode(xdr, NFS4_MAX_SESSIONID_LEN + 4 + 4 + 4 + 4); if (unlikely(p == NULL)) goto out_overflow; - memcpy(id.data, p, NFS4_MAX_SESSIONID_LEN); - if (memcmp(id.data, session->se_sessionid.data, - NFS4_MAX_SESSIONID_LEN) != 0) { + + if (memcmp(p, session->se_sessionid.data, NFS4_MAX_SESSIONID_LEN)) { dprintk("NFS: %s Invalid session id\n", __func__); goto out; } @@ -753,6 +750,14 @@ int set_callback_cred(void) return 0; } +void cleanup_callback_cred(void) +{ + if (callback_cred) { + put_rpccred(callback_cred); + callback_cred = NULL; + } +} + static struct rpc_cred *get_backchannel_cred(struct nfs4_client *clp, struct rpc_clnt *client, struct nfsd4_session *ses) { if (clp->cl_minorversion == 0) { diff --git a/fs/nfsd/nfs4idmap.c b/fs/nfsd/nfs4idmap.c index 5b20577dcdd2..6b9b6cca469f 100644 --- a/fs/nfsd/nfs4idmap.c +++ b/fs/nfsd/nfs4idmap.c @@ -628,6 +628,10 @@ nfsd_map_name_to_uid(struct svc_rqst *rqstp, const char *name, size_t namelen, { __be32 status; u32 id = -1; + + if (name == NULL || namelen == 0) + return nfserr_inval; + status = do_name_to_id(rqstp, IDMAP_TYPE_USER, name, namelen, &id); *uid = make_kuid(&init_user_ns, id); if (!uid_valid(*uid)) @@ -641,6 +645,10 @@ nfsd_map_name_to_gid(struct svc_rqst *rqstp, const char *name, size_t namelen, { __be32 status; u32 id = -1; + + if (name == NULL || namelen == 0) + return nfserr_inval; + status = do_name_to_id(rqstp, IDMAP_TYPE_GROUP, name, namelen, &id); *gid = make_kgid(&init_user_ns, id); if (!gid_valid(*gid)) diff --git a/fs/nfsd/nfs4layouts.c b/fs/nfsd/nfs4layouts.c index 1fc07a9c70e9..e122da696f1b 100644 --- a/fs/nfsd/nfs4layouts.c +++ b/fs/nfsd/nfs4layouts.c @@ -614,6 +614,7 @@ nfsd4_cb_layout_fail(struct nfs4_layout_stateid *ls) { struct nfs4_client *clp = ls->ls_stid.sc_client; char addr_str[INET6_ADDRSTRLEN]; + static char const nfsd_recall_failed[] = "/sbin/nfsd-recall-failed"; static char *envp[] = { "HOME=/", "TERM=linux", @@ -629,12 +630,13 @@ nfsd4_cb_layout_fail(struct nfs4_layout_stateid *ls) "nfsd: client %s failed to respond to layout recall. " " Fencing..\n", addr_str); - argv[0] = "/sbin/nfsd-recall-failed"; + argv[0] = (char *)nfsd_recall_failed; argv[1] = addr_str; argv[2] = ls->ls_file->f_path.mnt->mnt_sb->s_id; argv[3] = NULL; - error = call_usermodehelper(argv[0], argv, envp, UMH_WAIT_PROC); + error = call_usermodehelper(nfsd_recall_failed, argv, envp, + UMH_WAIT_PROC); if (error) { printk(KERN_ERR "nfsd: fence failed for client %s: %d!\n", addr_str, error); diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c index 74a6e573e061..cbeeda1e94a2 100644 --- a/fs/nfsd/nfs4proc.c +++ b/fs/nfsd/nfs4proc.c @@ -95,11 +95,15 @@ check_attr_support(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, u32 *bmval, u32 *writable) { struct dentry *dentry = cstate->current_fh.fh_dentry; + struct svc_export *exp = cstate->current_fh.fh_export; if (!nfsd_attrs_supported(cstate->minorversion, bmval)) return nfserr_attrnotsupp; if ((bmval[0] & FATTR4_WORD0_ACL) && !IS_POSIXACL(d_inode(dentry))) return nfserr_attrnotsupp; + if ((bmval[2] & FATTR4_WORD2_SECURITY_LABEL) && + !(exp->ex_flags & NFSEXP_SECURITY_LABEL)) + return nfserr_attrnotsupp; if (writable && !bmval_is_subset(bmval, writable)) return nfserr_inval; if (writable && (bmval[2] & FATTR4_WORD2_MODE_UMASK) && @@ -983,7 +987,7 @@ nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, status = nfsd_vfs_write(rqstp, &cstate->current_fh, filp, write->wr_offset, rqstp->rq_vec, nvecs, &cnt, - &write->wr_how_written); + write->wr_how_written); fput(filp); write->wr_bytes_written = cnt; @@ -1838,6 +1842,12 @@ static inline u32 nfsd4_status_stateid_rsize(struct svc_rqst *rqstp, struct nfsd return (op_encode_hdr_size + op_encode_stateid_maxsz)* sizeof(__be32); } +static inline u32 nfsd4_access_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) +{ + /* ac_supported, ac_resp_access */ + return (op_encode_hdr_size + 2)* sizeof(__be32); +} + static inline u32 nfsd4_commit_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) { return (op_encode_hdr_size + op_encode_verifier_maxsz) * sizeof(__be32); @@ -1892,6 +1902,11 @@ static inline u32 nfsd4_getattr_rsize(struct svc_rqst *rqstp, return ret; } +static inline u32 nfsd4_getfh_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) +{ + return (op_encode_hdr_size + 1) * sizeof(__be32) + NFS4_FHSIZE; +} + static inline u32 nfsd4_link_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) { return (op_encode_hdr_size + op_encode_change_info_maxsz) @@ -1933,6 +1948,11 @@ static inline u32 nfsd4_readdir_rsize(struct svc_rqst *rqstp, struct nfsd4_op *o XDR_QUADLEN(rlen)) * sizeof(__be32); } +static inline u32 nfsd4_readlink_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) +{ + return (op_encode_hdr_size + 1) * sizeof(__be32) + PAGE_SIZE; +} + static inline u32 nfsd4_remove_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) { return (op_encode_hdr_size + op_encode_change_info_maxsz) @@ -1952,11 +1972,23 @@ static inline u32 nfsd4_sequence_rsize(struct svc_rqst *rqstp, + XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5) * sizeof(__be32); } +static inline u32 nfsd4_test_stateid_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) +{ + return (op_encode_hdr_size + 1 + op->u.test_stateid.ts_num_ids) + * sizeof(__be32); +} + static inline u32 nfsd4_setattr_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) { return (op_encode_hdr_size + nfs4_fattr_bitmap_maxsz) * sizeof(__be32); } +static inline u32 nfsd4_secinfo_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) +{ + return (op_encode_hdr_size + RPC_AUTH_MAXFLAVOR * + (4 + XDR_QUADLEN(GSS_OID_MAX_LEN))) * sizeof(__be32); +} + static inline u32 nfsd4_setclientid_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) { return (op_encode_hdr_size + 2 + XDR_QUADLEN(NFS4_VERIFIER_SIZE)) * @@ -2011,6 +2043,19 @@ static inline u32 nfsd4_copy_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) } #ifdef CONFIG_NFSD_PNFS +static inline u32 nfsd4_getdeviceinfo_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) +{ + u32 maxcount = 0, rlen = 0; + + maxcount = svc_max_payload(rqstp); + rlen = min(op->u.getdeviceinfo.gd_maxcount, maxcount); + + return (op_encode_hdr_size + + 1 /* gd_layout_type*/ + + XDR_QUADLEN(rlen) + + 2 /* gd_notify_types */) * sizeof(__be32); +} + /* * At this stage we don't really know what layout driver will handle the request, * so we need to define an arbitrary upper bound here. @@ -2040,10 +2085,17 @@ static inline u32 nfsd4_layoutreturn_rsize(struct svc_rqst *rqstp, struct nfsd4_ } #endif /* CONFIG_NFSD_PNFS */ + +static inline u32 nfsd4_seek_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) +{ + return (op_encode_hdr_size + 3) * sizeof(__be32); +} + static struct nfsd4_operation nfsd4_ops[] = { [OP_ACCESS] = { .op_func = (nfsd4op_func)nfsd4_access, .op_name = "OP_ACCESS", + .op_rsize_bop = (nfsd4op_rsize)nfsd4_access_rsize, }, [OP_CLOSE] = { .op_func = (nfsd4op_func)nfsd4_close, @@ -2081,6 +2133,7 @@ static struct nfsd4_operation nfsd4_ops[] = { [OP_GETFH] = { .op_func = (nfsd4op_func)nfsd4_getfh, .op_name = "OP_GETFH", + .op_rsize_bop = (nfsd4op_rsize)nfsd4_getfh_rsize, }, [OP_LINK] = { .op_func = (nfsd4op_func)nfsd4_link, @@ -2099,6 +2152,7 @@ static struct nfsd4_operation nfsd4_ops[] = { [OP_LOCKT] = { .op_func = (nfsd4op_func)nfsd4_lockt, .op_name = "OP_LOCKT", + .op_rsize_bop = (nfsd4op_rsize)nfsd4_lock_rsize, }, [OP_LOCKU] = { .op_func = (nfsd4op_func)nfsd4_locku, @@ -2111,15 +2165,18 @@ static struct nfsd4_operation nfsd4_ops[] = { .op_func = (nfsd4op_func)nfsd4_lookup, .op_flags = OP_HANDLES_WRONGSEC | OP_CLEAR_STATEID, .op_name = "OP_LOOKUP", + .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, }, [OP_LOOKUPP] = { .op_func = (nfsd4op_func)nfsd4_lookupp, .op_flags = OP_HANDLES_WRONGSEC | OP_CLEAR_STATEID, .op_name = "OP_LOOKUPP", + .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, }, [OP_NVERIFY] = { .op_func = (nfsd4op_func)nfsd4_nverify, .op_name = "OP_NVERIFY", + .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, }, [OP_OPEN] = { .op_func = (nfsd4op_func)nfsd4_open, @@ -2177,6 +2234,7 @@ static struct nfsd4_operation nfsd4_ops[] = { [OP_READLINK] = { .op_func = (nfsd4op_func)nfsd4_readlink, .op_name = "OP_READLINK", + .op_rsize_bop = (nfsd4op_rsize)nfsd4_readlink_rsize, }, [OP_REMOVE] = { .op_func = (nfsd4op_func)nfsd4_remove, @@ -2215,6 +2273,7 @@ static struct nfsd4_operation nfsd4_ops[] = { .op_func = (nfsd4op_func)nfsd4_secinfo, .op_flags = OP_HANDLES_WRONGSEC, .op_name = "OP_SECINFO", + .op_rsize_bop = (nfsd4op_rsize)nfsd4_secinfo_rsize, }, [OP_SETATTR] = { .op_func = (nfsd4op_func)nfsd4_setattr, @@ -2240,6 +2299,7 @@ static struct nfsd4_operation nfsd4_ops[] = { [OP_VERIFY] = { .op_func = (nfsd4op_func)nfsd4_verify, .op_name = "OP_VERIFY", + .op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize, }, [OP_WRITE] = { .op_func = (nfsd4op_func)nfsd4_write, @@ -2314,11 +2374,13 @@ static struct nfsd4_operation nfsd4_ops[] = { .op_func = (nfsd4op_func)nfsd4_secinfo_no_name, .op_flags = OP_HANDLES_WRONGSEC, .op_name = "OP_SECINFO_NO_NAME", + .op_rsize_bop = (nfsd4op_rsize)nfsd4_secinfo_rsize, }, [OP_TEST_STATEID] = { .op_func = (nfsd4op_func)nfsd4_test_stateid, .op_flags = ALLOWED_WITHOUT_FH, .op_name = "OP_TEST_STATEID", + .op_rsize_bop = (nfsd4op_rsize)nfsd4_test_stateid_rsize, }, [OP_FREE_STATEID] = { .op_func = (nfsd4op_func)nfsd4_free_stateid, @@ -2332,6 +2394,7 @@ static struct nfsd4_operation nfsd4_ops[] = { .op_func = (nfsd4op_func)nfsd4_getdeviceinfo, .op_flags = ALLOWED_WITHOUT_FH, .op_name = "OP_GETDEVICEINFO", + .op_rsize_bop = (nfsd4op_rsize)nfsd4_getdeviceinfo_rsize, }, [OP_LAYOUTGET] = { .op_func = (nfsd4op_func)nfsd4_layoutget, @@ -2381,6 +2444,7 @@ static struct nfsd4_operation nfsd4_ops[] = { [OP_SEEK] = { .op_func = (nfsd4op_func)nfsd4_seek, .op_name = "OP_SEEK", + .op_rsize_bop = (nfsd4op_rsize)nfsd4_seek_rsize, }, }; @@ -2425,14 +2489,11 @@ bool nfsd4_spo_must_allow(struct svc_rqst *rqstp) int nfsd4_max_reply(struct svc_rqst *rqstp, struct nfsd4_op *op) { - struct nfsd4_operation *opdesc; - nfsd4op_rsize estimator; - if (op->opnum == OP_ILLEGAL) return op_encode_hdr_size * sizeof(__be32); - opdesc = OPDESC(op); - estimator = opdesc->op_rsize_bop; - return estimator ? estimator(rqstp, op) : PAGE_SIZE; + + BUG_ON(OPDESC(op)->op_rsize_bop == NULL); + return OPDESC(op)->op_rsize_bop(rqstp, op); } void warn_on_nonidempotent_op(struct nfsd4_op *op) @@ -2476,12 +2537,13 @@ static struct svc_procedure nfsd_procedures4[2] = { }; struct svc_version nfsd_version4 = { - .vs_vers = 4, - .vs_nproc = 2, - .vs_proc = nfsd_procedures4, - .vs_dispatch = nfsd_dispatch, - .vs_xdrsize = NFS4_SVC_XDRSIZE, - .vs_rpcb_optnl = 1, + .vs_vers = 4, + .vs_nproc = 2, + .vs_proc = nfsd_procedures4, + .vs_dispatch = nfsd_dispatch, + .vs_xdrsize = NFS4_SVC_XDRSIZE, + .vs_rpcb_optnl = true, + .vs_need_cong_ctrl = true, }; /* diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index a0dee8ae9f97..e9ef50addddb 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -2281,7 +2281,7 @@ gen_callback(struct nfs4_client *clp, struct nfsd4_setclientid *se, struct svc_r out_err: conn->cb_addr.ss_family = AF_UNSPEC; conn->cb_addrlen = 0; - dprintk(KERN_INFO "NFSD: this client (clientid %08x/%08x) " + dprintk("NFSD: this client (clientid %08x/%08x) " "will not receive delegations\n", clp->cl_clientid.cl_boot, clp->cl_clientid.cl_id); @@ -7012,23 +7012,24 @@ nfs4_state_start(void) ret = set_callback_cred(); if (ret) - return -ENOMEM; + return ret; + laundry_wq = alloc_workqueue("%s", WQ_UNBOUND, 0, "nfsd4"); if (laundry_wq == NULL) { ret = -ENOMEM; - goto out_recovery; + goto out_cleanup_cred; } ret = nfsd4_create_callback_queue(); if (ret) goto out_free_laundry; set_max_delegations(); - return 0; out_free_laundry: destroy_workqueue(laundry_wq); -out_recovery: +out_cleanup_cred: + cleanup_callback_cred(); return ret; } @@ -7086,6 +7087,7 @@ nfs4_state_shutdown(void) { destroy_workqueue(laundry_wq); nfsd4_destroy_callback_queue(); + cleanup_callback_cred(); } static void diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c index 8fae53ce21d1..33017d652b1d 100644 --- a/fs/nfsd/nfs4xdr.c +++ b/fs/nfsd/nfs4xdr.c @@ -58,7 +58,7 @@ #define NFSDDBG_FACILITY NFSDDBG_XDR -u32 nfsd_suppattrs[3][3] = { +const u32 nfsd_suppattrs[3][3] = { {NFSD4_SUPPORTED_ATTRS_WORD0, NFSD4_SUPPORTED_ATTRS_WORD1, NFSD4_SUPPORTED_ATTRS_WORD2}, @@ -1250,7 +1250,7 @@ nfsd4_decode_write(struct nfsd4_compoundargs *argp, struct nfsd4_write *write) READ_BUF(16); p = xdr_decode_hyper(p, &write->wr_offset); write->wr_stable_how = be32_to_cpup(p++); - if (write->wr_stable_how > 2) + if (write->wr_stable_how > NFS_FILE_SYNC) goto xdr_error; write->wr_buflen = be32_to_cpup(p++); @@ -1941,12 +1941,12 @@ nfsd4_decode_compound(struct nfsd4_compoundargs *argp) } else max_reply += nfsd4_max_reply(argp->rqstp, op); /* - * OP_LOCK may return a conflicting lock. (Special case - * because it will just skip encoding this if it runs - * out of xdr buffer space, and it is the only operation - * that behaves this way.) + * OP_LOCK and OP_LOCKT may return a conflicting lock. + * (Special case because it will just skip encoding this + * if it runs out of xdr buffer space, and it is the only + * operation that behaves this way.) */ - if (op->opnum == OP_LOCK) + if (op->opnum == OP_LOCK || op->opnum == OP_LOCKT) max_reply += NFS4_OPAQUE_LIMIT; if (op->status) { @@ -1966,9 +1966,13 @@ nfsd4_decode_compound(struct nfsd4_compoundargs *argp) DECODE_TAIL; } -static __be32 *encode_change(__be32 *p, struct kstat *stat, struct inode *inode) +static __be32 *encode_change(__be32 *p, struct kstat *stat, struct inode *inode, + struct svc_export *exp) { - if (IS_I_VERSION(inode)) { + if (exp->ex_flags & NFSEXP_V4ROOT) { + *p++ = cpu_to_be32(convert_to_wallclock(exp->cd->flush_time)); + *p++ = 0; + } else if (IS_I_VERSION(inode)) { p = xdr_encode_hyper(p, inode->i_version); } else { *p++ = cpu_to_be32(stat->ctime.tv_sec); @@ -2297,7 +2301,7 @@ static int get_parent_attributes(struct svc_export *exp, struct kstat *stat) if (path.dentry != path.mnt->mnt_root) break; } - err = vfs_getattr(&path, stat); + err = vfs_getattr(&path, stat, STATX_BASIC_STATS, AT_STATX_SYNC_AS_STAT); path_put(&path); return err; } @@ -2381,7 +2385,7 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp, goto out; } - err = vfs_getattr(&path, &stat); + err = vfs_getattr(&path, &stat, STATX_BASIC_STATS, AT_STATX_SYNC_AS_STAT); if (err) goto out_nfserr; if ((bmval0 & (FATTR4_WORD0_FILES_AVAIL | FATTR4_WORD0_FILES_FREE | @@ -2417,8 +2421,11 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp, #ifdef CONFIG_NFSD_V4_SECURITY_LABEL if ((bmval2 & FATTR4_WORD2_SECURITY_LABEL) || bmval0 & FATTR4_WORD0_SUPPORTED_ATTRS) { - err = security_inode_getsecctx(d_inode(dentry), + if (exp->ex_flags & NFSEXP_SECURITY_LABEL) + err = security_inode_getsecctx(d_inode(dentry), &context, &contextlen); + else + err = -EOPNOTSUPP; contextsupport = (err == 0); if (bmval2 & FATTR4_WORD2_SECURITY_LABEL) { if (err == -EOPNOTSUPP) @@ -2490,7 +2497,7 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp, p = xdr_reserve_space(xdr, 8); if (!p) goto out_resource; - p = encode_change(p, &stat, d_inode(dentry)); + p = encode_change(p, &stat, d_inode(dentry), exp); } if (bmval0 & FATTR4_WORD0_SIZE) { p = xdr_reserve_space(xdr, 8); diff --git a/fs/nfsd/nfscache.c b/fs/nfsd/nfscache.c index d6b97b424ad1..96fd15979cbd 100644 --- a/fs/nfsd/nfscache.c +++ b/fs/nfsd/nfscache.c @@ -578,7 +578,7 @@ nfsd_cache_append(struct svc_rqst *rqstp, struct kvec *data) struct kvec *vec = &rqstp->rq_res.head[0]; if (vec->iov_len + data->iov_len > PAGE_SIZE) { - printk(KERN_WARNING "nfsd: cached reply too large (%Zd).\n", + printk(KERN_WARNING "nfsd: cached reply too large (%zd).\n", data->iov_len); return 0; } diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c index f3b2f34b10a3..73e75ac90525 100644 --- a/fs/nfsd/nfsctl.c +++ b/fs/nfsd/nfsctl.c @@ -536,6 +536,19 @@ out_free: return rv; } +static ssize_t +nfsd_print_version_support(char *buf, int remaining, const char *sep, + unsigned vers, unsigned minor) +{ + const char *format = (minor == 0) ? "%s%c%u" : "%s%c%u.%u"; + bool supported = !!nfsd_vers(vers, NFSD_TEST); + + if (vers == 4 && !nfsd_minorversion(minor, NFSD_TEST)) + supported = false; + return snprintf(buf, remaining, format, sep, + supported ? '+' : '-', vers, minor); +} + static ssize_t __write_versions(struct file *file, char *buf, size_t size) { char *mesg = buf; @@ -561,6 +574,7 @@ static ssize_t __write_versions(struct file *file, char *buf, size_t size) len = qword_get(&mesg, vers, size); if (len <= 0) return -EINVAL; do { + enum vers_op cmd; sign = *vers; if (sign == '+' || sign == '-') num = simple_strtol((vers+1), &minorp, 0); @@ -569,24 +583,22 @@ static ssize_t __write_versions(struct file *file, char *buf, size_t size) if (*minorp == '.') { if (num != 4) return -EINVAL; - minor = simple_strtoul(minorp+1, NULL, 0); - if (minor == 0) - return -EINVAL; - if (nfsd_minorversion(minor, sign == '-' ? - NFSD_CLEAR : NFSD_SET) < 0) + if (kstrtouint(minorp+1, 0, &minor) < 0) return -EINVAL; - goto next; - } + } else + minor = 0; + cmd = sign == '-' ? NFSD_CLEAR : NFSD_SET; switch(num) { case 2: case 3: - case 4: - nfsd_vers(num, sign == '-' ? NFSD_CLEAR : NFSD_SET); + nfsd_vers(num, cmd); break; + case 4: + if (nfsd_minorversion(minor, cmd) >= 0) + break; default: return -EINVAL; } - next: vers += len + 1; } while ((len = qword_get(&mesg, vers, size)) > 0); /* If all get turned off, turn them back on, as @@ -599,35 +611,23 @@ static ssize_t __write_versions(struct file *file, char *buf, size_t size) len = 0; sep = ""; remaining = SIMPLE_TRANSACTION_LIMIT; - for (num=2 ; num <= 4 ; num++) - if (nfsd_vers(num, NFSD_AVAIL)) { - len = snprintf(buf, remaining, "%s%c%d", sep, - nfsd_vers(num, NFSD_TEST)?'+':'-', - num); - sep = " "; - - if (len >= remaining) - break; - remaining -= len; - buf += len; - tlen += len; - } - if (nfsd_vers(4, NFSD_AVAIL)) - for (minor = 1; minor <= NFSD_SUPPORTED_MINOR_VERSION; - minor++) { - len = snprintf(buf, remaining, " %c4.%u", - (nfsd_vers(4, NFSD_TEST) && - nfsd_minorversion(minor, NFSD_TEST)) ? - '+' : '-', - minor); - + for (num=2 ; num <= 4 ; num++) { + if (!nfsd_vers(num, NFSD_AVAIL)) + continue; + minor = 0; + do { + len = nfsd_print_version_support(buf, remaining, + sep, num, minor); if (len >= remaining) - break; + goto out; remaining -= len; buf += len; tlen += len; - } - + minor++; + sep = " "; + } while (num == 4 && minor <= NFSD_SUPPORTED_MINOR_VERSION); + } +out: len = snprintf(buf, remaining, "\n"); if (len >= remaining) return -EINVAL; diff --git a/fs/nfsd/nfsd.h b/fs/nfsd/nfsd.h index d74c8c44dc35..d96606801d47 100644 --- a/fs/nfsd/nfsd.h +++ b/fs/nfsd/nfsd.h @@ -362,16 +362,16 @@ void nfsd_lockd_shutdown(void); FATTR4_WORD2_MODE_UMASK | \ NFSD4_2_SECURITY_ATTRS) -extern u32 nfsd_suppattrs[3][3]; +extern const u32 nfsd_suppattrs[3][3]; -static inline bool bmval_is_subset(u32 *bm1, u32 *bm2) +static inline bool bmval_is_subset(const u32 *bm1, const u32 *bm2) { return !((bm1[0] & ~bm2[0]) || (bm1[1] & ~bm2[1]) || (bm1[2] & ~bm2[2])); } -static inline bool nfsd_attrs_supported(u32 minorversion, u32 *bmval) +static inline bool nfsd_attrs_supported(u32 minorversion, const u32 *bmval) { return bmval_is_subset(bmval, nfsd_suppattrs[minorversion]); } diff --git a/fs/nfsd/nfsproc.c b/fs/nfsd/nfsproc.c index 010aff5c5a79..fa82b7707e85 100644 --- a/fs/nfsd/nfsproc.c +++ b/fs/nfsd/nfsproc.c @@ -204,18 +204,14 @@ nfsd_proc_write(struct svc_rqst *rqstp, struct nfsd_writeargs *argp, struct nfsd_attrstat *resp) { __be32 nfserr; - int stable = 1; unsigned long cnt = argp->len; dprintk("nfsd: WRITE %s %d bytes at %d\n", SVCFH_fmt(&argp->fh), argp->len, argp->offset); - nfserr = nfsd_write(rqstp, fh_copy(&resp->fh, &argp->fh), NULL, - argp->offset, - rqstp->rq_vec, argp->vlen, - &cnt, - &stable); + nfserr = nfsd_write(rqstp, fh_copy(&resp->fh, &argp->fh), argp->offset, + rqstp->rq_vec, argp->vlen, &cnt, NFS_DATA_SYNC); return nfsd_return_attrs(nfserr, resp); } diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c index e6bfd96734c0..786a4a2cb2d7 100644 --- a/fs/nfsd/nfssvc.c +++ b/fs/nfsd/nfssvc.c @@ -6,7 +6,7 @@ * Copyright (C) 1995, 1996, 1997 Olaf Kirch <okir@monad.swb.de> */ -#include <linux/sched.h> +#include <linux/sched/signal.h> #include <linux/freezer.h> #include <linux/module.h> #include <linux/fs_struct.h> @@ -153,6 +153,18 @@ int nfsd_vers(int vers, enum vers_op change) return 0; } +static void +nfsd_adjust_nfsd_versions4(void) +{ + unsigned i; + + for (i = 0; i <= NFSD_SUPPORTED_MINOR_VERSION; i++) { + if (nfsd_supported_minorversions[i]) + return; + } + nfsd_vers(4, NFSD_CLEAR); +} + int nfsd_minorversion(u32 minorversion, enum vers_op change) { if (minorversion > NFSD_SUPPORTED_MINOR_VERSION) @@ -160,9 +172,11 @@ int nfsd_minorversion(u32 minorversion, enum vers_op change) switch(change) { case NFSD_SET: nfsd_supported_minorversions[minorversion] = true; + nfsd_vers(4, NFSD_SET); break; case NFSD_CLEAR: nfsd_supported_minorversions[minorversion] = false; + nfsd_adjust_nfsd_versions4(); break; case NFSD_TEST: return nfsd_supported_minorversions[minorversion]; @@ -354,6 +368,8 @@ static int nfsd_inet6addr_event(struct notifier_block *this, dprintk("nfsd_inet6addr_event: removed %pI6\n", &ifa->addr); sin6.sin6_family = AF_INET6; sin6.sin6_addr = ifa->addr; + if (ipv6_addr_type(&sin6.sin6_addr) & IPV6_ADDR_LINKLOCAL) + sin6.sin6_scope_id = ifa->idev->dev->ifindex; svc_age_temp_xprts_now(nn->nfsd_serv, (struct sockaddr *)&sin6); } diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h index 4516e8b7d776..005c911b34ac 100644 --- a/fs/nfsd/state.h +++ b/fs/nfsd/state.h @@ -615,6 +615,7 @@ extern struct nfs4_client_reclaim *nfsd4_find_reclaim_client(const char *recdir, extern __be32 nfs4_check_open_reclaim(clientid_t *clid, struct nfsd4_compound_state *cstate, struct nfsd_net *nn); extern int set_callback_cred(void); +extern void cleanup_callback_cred(void); extern void nfsd4_probe_callback(struct nfs4_client *clp); extern void nfsd4_probe_callback_sync(struct nfs4_client *clp); extern void nfsd4_change_callback(struct nfs4_client *clp, struct nfs4_cb_conn *); diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c index 26c6fdb4bf67..19d50f600e8d 100644 --- a/fs/nfsd/vfs.c +++ b/fs/nfsd/vfs.c @@ -377,7 +377,7 @@ nfsd_setattr(struct svc_rqst *rqstp, struct svc_fh *fhp, struct iattr *iap, __be32 err; int host_err; bool get_write_count; - int size_change = 0; + bool size_change = (iap->ia_valid & ATTR_SIZE); if (iap->ia_valid & (ATTR_ATIME | ATTR_MTIME | ATTR_SIZE)) accmode |= NFSD_MAY_WRITE|NFSD_MAY_OWNER_OVERRIDE; @@ -390,11 +390,11 @@ nfsd_setattr(struct svc_rqst *rqstp, struct svc_fh *fhp, struct iattr *iap, /* Get inode */ err = fh_verify(rqstp, fhp, ftype, accmode); if (err) - goto out; + return err; if (get_write_count) { host_err = fh_want_write(fhp); if (host_err) - return nfserrno(host_err); + goto out; } dentry = fhp->fh_dentry; @@ -405,20 +405,28 @@ nfsd_setattr(struct svc_rqst *rqstp, struct svc_fh *fhp, struct iattr *iap, iap->ia_valid &= ~ATTR_MODE; if (!iap->ia_valid) - goto out; + return 0; nfsd_sanitize_attrs(inode, iap); + if (check_guard && guardtime != inode->i_ctime.tv_sec) + return nfserr_notsync; + /* * The size case is special, it changes the file in addition to the - * attributes. + * attributes, and file systems don't expect it to be mixed with + * "random" attribute changes. We thus split out the size change + * into a separate call to ->setattr, and do the rest as a separate + * setattr call. */ - if (iap->ia_valid & ATTR_SIZE) { + if (size_change) { err = nfsd_get_write_access(rqstp, fhp, iap); if (err) - goto out; - size_change = 1; + return err; + } + fh_lock(fhp); + if (size_change) { /* * RFC5661, Section 18.30.4: * Changing the size of a file with SETATTR indirectly @@ -426,29 +434,36 @@ nfsd_setattr(struct svc_rqst *rqstp, struct svc_fh *fhp, struct iattr *iap, * * (and similar for the older RFCs) */ - if (iap->ia_size != i_size_read(inode)) - iap->ia_valid |= ATTR_MTIME; - } + struct iattr size_attr = { + .ia_valid = ATTR_SIZE | ATTR_CTIME | ATTR_MTIME, + .ia_size = iap->ia_size, + }; - iap->ia_valid |= ATTR_CTIME; + host_err = notify_change(dentry, &size_attr, NULL); + if (host_err) + goto out_unlock; + iap->ia_valid &= ~ATTR_SIZE; - if (check_guard && guardtime != inode->i_ctime.tv_sec) { - err = nfserr_notsync; - goto out_put_write_access; + /* + * Avoid the additional setattr call below if the only other + * attribute that the client sends is the mtime, as we update + * it as part of the size change above. + */ + if ((iap->ia_valid & ~ATTR_MTIME) == 0) + goto out_unlock; } - fh_lock(fhp); + iap->ia_valid |= ATTR_CTIME; host_err = notify_change(dentry, iap, NULL); - fh_unlock(fhp); - err = nfserrno(host_err); -out_put_write_access: +out_unlock: + fh_unlock(fhp); if (size_change) put_write_access(inode); - if (!err) - err = nfserrno(commit_metadata(fhp)); out: - return err; + if (!host_err) + host_err = commit_metadata(fhp); + return nfserrno(host_err); } #if defined(CONFIG_NFSD_V4) @@ -940,14 +955,12 @@ static int wait_for_concurrent_writes(struct file *file) __be32 nfsd_vfs_write(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file, loff_t offset, struct kvec *vec, int vlen, - unsigned long *cnt, int *stablep) + unsigned long *cnt, int stable) { struct svc_export *exp; - struct inode *inode; mm_segment_t oldfs; __be32 err = 0; int host_err; - int stable = *stablep; int use_wgather; loff_t pos = offset; unsigned int pflags = current->flags; @@ -962,13 +975,11 @@ nfsd_vfs_write(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file, */ current->flags |= PF_LESS_THROTTLE; - inode = file_inode(file); - exp = fhp->fh_export; - + exp = fhp->fh_export; use_wgather = (rqstp->rq_vers == 2) && EX_WGATHER(exp); if (!EX_ISSYNC(exp)) - stable = 0; + stable = NFS_UNSTABLE; if (stable && !use_wgather) flags |= RWF_SYNC; @@ -1035,35 +1046,22 @@ __be32 nfsd_read(struct svc_rqst *rqstp, struct svc_fh *fhp, * N.B. After this call fhp needs an fh_put */ __be32 -nfsd_write(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file, - loff_t offset, struct kvec *vec, int vlen, unsigned long *cnt, - int *stablep) +nfsd_write(struct svc_rqst *rqstp, struct svc_fh *fhp, loff_t offset, + struct kvec *vec, int vlen, unsigned long *cnt, int stable) { - __be32 err = 0; + struct file *file = NULL; + __be32 err = 0; trace_write_start(rqstp, fhp, offset, vlen); - if (file) { - err = nfsd_permission(rqstp, fhp->fh_export, fhp->fh_dentry, - NFSD_MAY_WRITE|NFSD_MAY_OWNER_OVERRIDE); - if (err) - goto out; - trace_write_opened(rqstp, fhp, offset, vlen); - err = nfsd_vfs_write(rqstp, fhp, file, offset, vec, vlen, cnt, - stablep); - trace_write_io_done(rqstp, fhp, offset, vlen); - } else { - err = nfsd_open(rqstp, fhp, S_IFREG, NFSD_MAY_WRITE, &file); - if (err) - goto out; + err = nfsd_open(rqstp, fhp, S_IFREG, NFSD_MAY_WRITE, &file); + if (err) + goto out; - trace_write_opened(rqstp, fhp, offset, vlen); - if (cnt) - err = nfsd_vfs_write(rqstp, fhp, file, offset, vec, vlen, - cnt, stablep); - trace_write_io_done(rqstp, fhp, offset, vlen); - fput(file); - } + trace_write_opened(rqstp, fhp, offset, vlen); + err = nfsd_vfs_write(rqstp, fhp, file, offset, vec, vlen, cnt, stable); + trace_write_io_done(rqstp, fhp, offset, vlen); + fput(file); out: trace_write_done(rqstp, fhp, offset, vlen); return err; diff --git a/fs/nfsd/vfs.h b/fs/nfsd/vfs.h index 0bf9e7bf5800..1bbdccecbf3d 100644 --- a/fs/nfsd/vfs.h +++ b/fs/nfsd/vfs.h @@ -83,12 +83,12 @@ __be32 nfsd_readv(struct file *, loff_t, struct kvec *, int, unsigned long *); __be32 nfsd_read(struct svc_rqst *, struct svc_fh *, loff_t, struct kvec *, int, unsigned long *); -__be32 nfsd_write(struct svc_rqst *, struct svc_fh *,struct file *, - loff_t, struct kvec *,int, unsigned long *, int *); +__be32 nfsd_write(struct svc_rqst *, struct svc_fh *, loff_t, + struct kvec *, int, unsigned long *, int); __be32 nfsd_vfs_write(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file, loff_t offset, struct kvec *vec, int vlen, unsigned long *cnt, - int *stablep); + int stable); __be32 nfsd_readlink(struct svc_rqst *, struct svc_fh *, char *, int *); __be32 nfsd_symlink(struct svc_rqst *, struct svc_fh *, @@ -135,7 +135,8 @@ static inline __be32 fh_getattr(struct svc_fh *fh, struct kstat *stat) { struct path p = {.mnt = fh->fh_export->ex_path.mnt, .dentry = fh->fh_dentry}; - return nfserrno(vfs_getattr(&p, stat)); + return nfserrno(vfs_getattr(&p, stat, STATX_BASIC_STATS, + AT_STATX_SYNC_AS_STAT)); } static inline int nfsd_create_is_exclusive(int createmode) |