diff options
Diffstat (limited to 'fs/nfsd/nfs4proc.c')
-rw-r--r-- | fs/nfsd/nfs4proc.c | 75 |
1 files changed, 44 insertions, 31 deletions
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c index 3c69db7d4905..5d99e8810b85 100644 --- a/fs/nfsd/nfs4proc.c +++ b/fs/nfsd/nfs4proc.c @@ -32,6 +32,7 @@ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ +#include <linux/fs_struct.h> #include <linux/file.h> #include <linux/falloc.h> #include <linux/slab.h> @@ -252,11 +253,13 @@ do_open_lookup(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, stru * Note: create modes (UNCHECKED,GUARDED...) are the same * in NFSv4 as in v3 except EXCLUSIVE4_1. */ + current->fs->umask = open->op_umask; status = do_nfsd_create(rqstp, current_fh, open->op_fname.data, open->op_fname.len, &open->op_iattr, *resfh, open->op_createmode, (u32 *)open->op_verf.data, &open->op_truncate, &open->op_created); + current->fs->umask = 0; if (!status && open->op_label.len) nfsd4_security_inode_setsecctx(*resfh, &open->op_label, open->op_bmval); @@ -485,9 +488,6 @@ static __be32 nfsd4_getfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, union nfsd4_op_u *u) { - if (!cstate->current_fh.fh_dentry) - return nfserr_nofilehandle; - u->getfh = &cstate->current_fh; return nfs_ok; } @@ -535,9 +535,6 @@ static __be32 nfsd4_savefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, union nfsd4_op_u *u) { - if (!cstate->current_fh.fh_dentry) - return nfserr_nofilehandle; - fh_dup2(&cstate->save_fh, &cstate->current_fh); if (HAS_STATE_ID(cstate, CURRENT_STATE_ID_FLAG)) { memcpy(&cstate->save_stateid, &cstate->current_stateid, sizeof(stateid_t)); @@ -570,10 +567,11 @@ static void gen_boot_verifier(nfs4_verifier *verifier, struct net *net) /* * This is opaque to client, so no need to byte-swap. Use - * __force to keep sparse happy + * __force to keep sparse happy. y2038 time_t overflow is + * irrelevant in this usage. */ verf[0] = (__force __be32)nn->nfssvc_boot.tv_sec; - verf[1] = (__force __be32)nn->nfssvc_boot.tv_usec; + verf[1] = (__force __be32)nn->nfssvc_boot.tv_nsec; memcpy(verifier->data, verf, sizeof(verifier->data)); } @@ -608,6 +606,7 @@ nfsd4_create(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, if (status) return status; + current->fs->umask = create->cr_umask; switch (create->cr_type) { case NF4LNK: status = nfsd_symlink(rqstp, &cstate->current_fh, @@ -616,20 +615,22 @@ nfsd4_create(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, break; case NF4BLK: + status = nfserr_inval; rdev = MKDEV(create->cr_specdata1, create->cr_specdata2); if (MAJOR(rdev) != create->cr_specdata1 || MINOR(rdev) != create->cr_specdata2) - return nfserr_inval; + goto out_umask; status = nfsd_create(rqstp, &cstate->current_fh, create->cr_name, create->cr_namelen, &create->cr_iattr, S_IFBLK, rdev, &resfh); break; case NF4CHR: + status = nfserr_inval; rdev = MKDEV(create->cr_specdata1, create->cr_specdata2); if (MAJOR(rdev) != create->cr_specdata1 || MINOR(rdev) != create->cr_specdata2) - return nfserr_inval; + goto out_umask; status = nfsd_create(rqstp, &cstate->current_fh, create->cr_name, create->cr_namelen, &create->cr_iattr,S_IFCHR, rdev, &resfh); @@ -673,6 +674,8 @@ nfsd4_create(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, fh_dup2(&cstate->current_fh, &resfh); out: fh_put(&resfh); +out_umask: + current->fs->umask = 0; return status; } @@ -703,10 +706,8 @@ nfsd4_link(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, union nfsd4_op_u *u) { struct nfsd4_link *link = &u->link; - __be32 status = nfserr_nofilehandle; + __be32 status; - if (!cstate->save_fh.fh_dentry) - return status; status = nfsd_link(rqstp, &cstate->current_fh, link->li_name, link->li_namelen, &cstate->save_fh); if (!status) @@ -758,6 +759,9 @@ nfsd4_read(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, if (read->rd_offset >= OFFSET_MAX) return nfserr_inval; + trace_nfsd_read_start(rqstp, &cstate->current_fh, + read->rd_offset, read->rd_length); + /* * If we do a zero copy read, then a client will see read data * that reflects the state of the file *after* performing the @@ -790,6 +794,8 @@ nfsd4_read_release(union nfsd4_op_u *u) { if (u->read.rd_filp) fput(u->read.rd_filp); + trace_nfsd_read_done(u->read.rd_rqstp, u->read.rd_fhp, + u->read.rd_offset, u->read.rd_length); } static __be32 @@ -850,10 +856,8 @@ nfsd4_rename(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, union nfsd4_op_u *u) { struct nfsd4_rename *rename = &u->rename; - __be32 status = nfserr_nofilehandle; + __be32 status; - if (!cstate->save_fh.fh_dentry) - return status; if (opens_in_grace(SVC_NET(rqstp)) && !(cstate->save_fh.fh_export->ex_flags & NFSEXP_NOSUBTREECHECK)) return nfserr_grace; @@ -927,6 +931,13 @@ nfsd4_secinfo_release(union nfsd4_op_u *u) exp_put(u->secinfo.si_exp); } +static void +nfsd4_secinfo_no_name_release(union nfsd4_op_u *u) +{ + if (u->secinfo_no_name.sin_exp) + exp_put(u->secinfo_no_name.sin_exp); +} + static __be32 nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, union nfsd4_op_u *u) @@ -1003,6 +1014,9 @@ nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, if (write->wr_offset >= OFFSET_MAX) return nfserr_inval; + cnt = write->wr_buflen; + trace_nfsd_write_start(rqstp, &cstate->current_fh, + write->wr_offset, cnt); status = nfs4_preprocess_stateid_op(rqstp, cstate, &cstate->current_fh, stateid, WR_STATE, &filp, NULL); if (status) { @@ -1010,7 +1024,6 @@ nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, return status; } - cnt = write->wr_buflen; write->wr_how_written = write->wr_stable_how; gen_boot_verifier(&write->wr_verifier, SVC_NET(rqstp)); @@ -1023,7 +1036,8 @@ nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, fput(filp); write->wr_bytes_written = cnt; - + trace_nfsd_write_done(rqstp, &cstate->current_fh, + write->wr_offset, cnt); return status; } @@ -1108,7 +1122,6 @@ nfsd4_copy(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, else { copy->cp_res.wr_bytes_written = bytes; copy->cp_res.wr_stable_how = NFS_UNSTABLE; - copy->cp_consecutive = 1; copy->cp_synchronous = 1; gen_boot_verifier(©->cp_res.wr_verifier, SVC_NET(rqstp)); status = nfs_ok; @@ -1365,14 +1378,14 @@ nfsd4_layoutget(struct svc_rqst *rqstp, const struct nfsd4_layout_ops *ops; struct nfs4_layout_stateid *ls; __be32 nfserr; - int accmode; + int accmode = NFSD_MAY_READ_IF_EXEC; switch (lgp->lg_seg.iomode) { case IOMODE_READ: - accmode = NFSD_MAY_READ; + accmode |= NFSD_MAY_READ; break; case IOMODE_RW: - accmode = NFSD_MAY_READ | NFSD_MAY_WRITE; + accmode |= NFSD_MAY_READ | NFSD_MAY_WRITE; break; default: dprintk("%s: invalid iomode %d\n", @@ -1414,7 +1427,7 @@ nfsd4_layoutget(struct svc_rqst *rqstp, nfserr = nfsd4_preprocess_layout_stateid(rqstp, cstate, &lgp->lg_sid, true, lgp->lg_layout_type, &ls); if (nfserr) { - trace_layout_get_lookup_fail(&lgp->lg_sid); + trace_nfsd_layout_get_lookup_fail(&lgp->lg_sid); goto out; } @@ -1483,7 +1496,7 @@ nfsd4_layoutcommit(struct svc_rqst *rqstp, false, lcp->lc_layout_type, &ls); if (nfserr) { - trace_layout_commit_lookup_fail(&lcp->lc_sid); + trace_nfsd_layout_commit_lookup_fail(&lcp->lc_sid); /* fixup error code as per RFC5661 */ if (nfserr == nfserr_bad_stateid) nfserr = nfserr_badlayout; @@ -1705,6 +1718,9 @@ nfsd4_proc_compound(struct svc_rqst *rqstp) status = nfserr_minor_vers_mismatch; if (nfsd_minorversion(args->minorversion, NFSD_TEST) <= 0) goto out; + status = nfserr_resource; + if (args->opcnt > NFSD_MAX_OPS_PER_COMPOUND) + goto out; status = nfs41_check_op_ordering(args); if (status) { @@ -1713,12 +1729,10 @@ nfsd4_proc_compound(struct svc_rqst *rqstp) goto encode_op; } + trace_nfsd_compound(rqstp, args->opcnt); while (!status && resp->opcnt < args->opcnt) { op = &args->ops[resp->opcnt++]; - dprintk("nfsv4 compound op #%d/%d: %d (%s)\n", - resp->opcnt, args->opcnt, op->opnum, - nfsd4_op_name(op->opnum)); /* * The XDR decode routines may have pre-set op->status; * for example, if there is a miscellaneous XDR error @@ -1792,9 +1806,8 @@ encode_op: status = op->status; } - dprintk("nfsv4 compound op %p opcnt %d #%d: %d: status %d\n", - args->ops, args->opcnt, resp->opcnt, op->opnum, - be32_to_cpu(status)); + trace_nfsd_compound_status(args->opcnt, resp->opcnt, status, + nfsd4_op_name(op->opnum)); nfsd4_cstate_clear_replay(cstate); nfsd4_increment_op_stats(op->opnum); @@ -2375,7 +2388,7 @@ static const struct nfsd4_operation nfsd4_ops[] = { }, [OP_SECINFO_NO_NAME] = { .op_func = nfsd4_secinfo_no_name, - .op_release = nfsd4_secinfo_release, + .op_release = nfsd4_secinfo_no_name_release, .op_flags = OP_HANDLES_WRONGSEC, .op_name = "OP_SECINFO_NO_NAME", .op_rsize_bop = nfsd4_secinfo_rsize, |