/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2009 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include static void smb_vop_setup_xvattr(smb_attr_t *smb_attr, xvattr_t *xvattr); static void smb_sa_to_va_mask(uint_t sa_mask, uint_t *va_maskp); static callb_cpr_t *smb_lock_frlock_callback(flk_cb_when_t, void *); extern sysid_t lm_alloc_sysidt(); #define SMB_AT_MAX 16 static uint_t smb_attrmap[SMB_AT_MAX] = { 0, AT_TYPE, AT_MODE, AT_UID, AT_GID, AT_FSID, AT_NODEID, AT_NLINK, AT_SIZE, AT_ATIME, AT_MTIME, AT_CTIME, AT_RDEV, AT_BLKSIZE, AT_NBLOCKS, AT_SEQ }; static boolean_t smb_vop_initialized = B_FALSE; caller_context_t smb_ct; /* * smb_vop_init * * This function is not multi-thread safe. The caller must make sure only one * thread makes the call. */ int smb_vop_init(void) { if (smb_vop_initialized) return (0); /* * The caller_context will be used primarily for range locking. * Since the CIFS server is mapping its locks to POSIX locks, * only one pid is used for operations originating from the * CIFS server (to represent CIFS in the VOP_FRLOCK routines). */ smb_ct.cc_sysid = lm_alloc_sysidt(); if (smb_ct.cc_sysid == LM_NOSYSID) return (ENOMEM); smb_ct.cc_caller_id = fs_new_caller_id(); smb_ct.cc_pid = IGN_PID; smb_ct.cc_flags = 0; smb_vop_initialized = B_TRUE; return (0); } /* * smb_vop_fini * * This function is not multi-thread safe. The caller must make sure only one * thread makes the call. */ void smb_vop_fini(void) { if (!smb_vop_initialized) return; lm_free_sysidt(smb_ct.cc_sysid); smb_ct.cc_pid = IGN_PID; smb_ct.cc_sysid = LM_NOSYSID; smb_vop_initialized = B_FALSE; } /* * The smb_ct will be used primarily for range locking. * Since the CIFS server is mapping its locks to POSIX locks, * only one pid is used for operations originating from the * CIFS server (to represent CIFS in the VOP_FRLOCK routines). */ int smb_vop_open(vnode_t **vpp, int mode, cred_t *cred) { return (VOP_OPEN(vpp, mode, cred, &smb_ct)); } void smb_vop_close(vnode_t *vp, int mode, cred_t *cred) { (void) VOP_CLOSE(vp, mode, 1, (offset_t)0, cred, &smb_ct); } int smb_vop_other_opens(vnode_t *vp, int mode) { return (((mode & FWRITE) && vn_has_other_opens(vp, V_WRITE)) || (((mode & FWRITE) == 0) && vn_is_opened(vp, V_WRITE)) || ((mode & FREAD) && vn_has_other_opens(vp, V_READ)) || (((mode & FREAD) == 0) && vn_is_opened(vp, V_READ)) || vn_is_mapped(vp, V_RDORWR)); } /* * The smb_vop_* functions have minimal knowledge of CIFS semantics and * serve as an interface to the VFS layer. * * Only smb_fsop_* layer functions should call smb_vop_* layer functions. * (Higher-level CIFS service code should never skip the smb_fsop_* layer * to call smb_vop_* layer functions directly.) */ /* * XXX - Extended attributes support in the file system assumed. * This is needed for full NT Streams functionality. */ int smb_vop_read(vnode_t *vp, uio_t *uiop, cred_t *cr) { int error; (void) VOP_RWLOCK(vp, V_WRITELOCK_FALSE, &smb_ct); error = VOP_READ(vp, uiop, 0, cr, &smb_ct); VOP_RWUNLOCK(vp, V_WRITELOCK_FALSE, &smb_ct); return (error); } int smb_vop_write(vnode_t *vp, uio_t *uiop, int ioflag, uint32_t *lcount, cred_t *cr) { int error; *lcount = uiop->uio_resid; uiop->uio_llimit = MAXOFFSET_T; (void) VOP_RWLOCK(vp, V_WRITELOCK_TRUE, &smb_ct); error = VOP_WRITE(vp, uiop, ioflag, cr, &smb_ct); VOP_RWUNLOCK(vp, V_WRITELOCK_TRUE, &smb_ct); *lcount -= uiop->uio_resid; return (error); } /* * smb_vop_getattr() * * smb_fsop_getattr()/smb_vop_getattr() should always be called from the CIFS * service (instead of calling VOP_GETATTR directly) to retrieve attributes * due to special processing needed for streams files. * * All attributes are retrieved. * * When vp denotes a named stream, then unnamed_vp should be passed in (denoting * the corresponding unnamed stream). * A named stream's attributes (as far as CIFS is concerned) are those of the * unnamed stream (minus the size attribute, and the type), plus the size of * the named stream, and a type value of VREG. * Although the file system may store other attributes with the named stream, * these should not be used by CIFS for any purpose. * * File systems without VFSFT_XVATTR do not support DOS attributes or create * time (crtime). In this case the mtime is used as the crtime. * Likewise if VOP_GETATTR doesn't return any system attributes the dosattr * is 0 and the mtime is used as the crtime. */ int smb_vop_getattr(vnode_t *vp, vnode_t *unnamed_vp, smb_attr_t *ret_attr, int flags, cred_t *cr) { int error; vnode_t *use_vp; smb_attr_t tmp_attr; xvattr_t tmp_xvattr; xoptattr_t *xoap = NULL; if (unnamed_vp) use_vp = unnamed_vp; else use_vp = vp; if (vfs_has_feature(use_vp->v_vfsp, VFSFT_XVATTR)) { xva_init(&tmp_xvattr); xoap = xva_getxoptattr(&tmp_xvattr); ASSERT(xoap); smb_sa_to_va_mask(ret_attr->sa_mask, &tmp_xvattr.xva_vattr.va_mask); XVA_SET_REQ(&tmp_xvattr, XAT_READONLY); XVA_SET_REQ(&tmp_xvattr, XAT_HIDDEN); XVA_SET_REQ(&tmp_xvattr, XAT_SYSTEM); XVA_SET_REQ(&tmp_xvattr, XAT_ARCHIVE); XVA_SET_REQ(&tmp_xvattr, XAT_CREATETIME); error = VOP_GETATTR(use_vp, &tmp_xvattr.xva_vattr, flags, cr, &smb_ct); if (error != 0) return (error); ret_attr->sa_vattr = tmp_xvattr.xva_vattr; ret_attr->sa_dosattr = 0; if (tmp_xvattr.xva_vattr.va_mask & AT_XVATTR) { xoap = xva_getxoptattr(&tmp_xvattr); ASSERT(xoap); if ((XVA_ISSET_RTN(&tmp_xvattr, XAT_READONLY)) && (xoap->xoa_readonly)) { ret_attr->sa_dosattr |= FILE_ATTRIBUTE_READONLY; } if ((XVA_ISSET_RTN(&tmp_xvattr, XAT_HIDDEN)) && (xoap->xoa_hidden)) { ret_attr->sa_dosattr |= FILE_ATTRIBUTE_HIDDEN; } if ((XVA_ISSET_RTN(&tmp_xvattr, XAT_SYSTEM)) && (xoap->xoa_system)) { ret_attr->sa_dosattr |= FILE_ATTRIBUTE_SYSTEM; } if ((XVA_ISSET_RTN(&tmp_xvattr, XAT_ARCHIVE)) && (xoap->xoa_archive)) { ret_attr->sa_dosattr |= FILE_ATTRIBUTE_ARCHIVE; } ret_attr->sa_crtime = xoap->xoa_createtime; } else { ret_attr->sa_crtime = ret_attr->sa_vattr.va_mtime; } } else { /* * Support for file systems without VFSFT_XVATTR */ smb_sa_to_va_mask(ret_attr->sa_mask, &ret_attr->sa_vattr.va_mask); error = VOP_GETATTR(use_vp, &ret_attr->sa_vattr, flags, cr, &smb_ct); if (error != 0) return (error); ret_attr->sa_dosattr = 0; ret_attr->sa_crtime = ret_attr->sa_vattr.va_mtime; } if (unnamed_vp) { ret_attr->sa_vattr.va_type = VREG; if (ret_attr->sa_mask & SMB_AT_SIZE) { tmp_attr.sa_vattr.va_mask = AT_SIZE; error = VOP_GETATTR(vp, &tmp_attr.sa_vattr, flags, cr, &smb_ct); if (error != 0) return (error); ret_attr->sa_vattr.va_size = tmp_attr.sa_vattr.va_size; } } if (ret_attr->sa_vattr.va_type == VDIR) ret_attr->sa_dosattr |= FILE_ATTRIBUTE_DIRECTORY; return (error); } /* * smb_vop_setattr() * * smb_fsop_setattr()/smb_vop_setattr() should always be used instead of * VOP_SETATTR() when calling from the CIFS service, due to special processing * for streams files. * * Streams have a size but otherwise do not have separate attributes from * the (unnamed stream) file, i.e., the security and ownership of the file * applies to the stream. In contrast, extended attribute files, which are * used to implement streams, are independent objects with their own * attributes. * * For compatibility with streams, we set the size on the extended attribute * file and apply other attributes to the (unnamed stream) file. The one * exception is that the UID and GID can be set on the stream by passing a * NULL unnamed_vp, which allows callers to synchronize stream ownership * with the (unnamed stream) file. */ int smb_vop_setattr(vnode_t *vp, vnode_t *unnamed_vp, smb_attr_t *set_attr, int flags, cred_t *cr) { int error = 0; int at_size = 0; vnode_t *use_vp; xvattr_t xvattr; vattr_t *vap; if (unnamed_vp) { use_vp = unnamed_vp; if (set_attr->sa_mask & SMB_AT_SIZE) { at_size = 1; set_attr->sa_mask &= ~SMB_AT_SIZE; } } else { use_vp = vp; } /* * The caller should not be setting sa_vattr.va_mask, * but rather sa_mask. */ set_attr->sa_vattr.va_mask = 0; if (vfs_has_feature(use_vp->v_vfsp, VFSFT_XVATTR)) { smb_vop_setup_xvattr(set_attr, &xvattr); vap = &xvattr.xva_vattr; } else { smb_sa_to_va_mask(set_attr->sa_mask, &set_attr->sa_vattr.va_mask); vap = &set_attr->sa_vattr; } if ((error = VOP_SETATTR(use_vp, vap, flags, cr, &smb_ct)) != 0) return (error); if (at_size) { set_attr->sa_vattr.va_mask = AT_SIZE; error = VOP_SETATTR(vp, &set_attr->sa_vattr, flags, cr, &smb_ct); } return (error); } /* * smb_vop_access * * This is a wrapper round VOP_ACCESS. VOP_ACCESS checks the given mode * against file's ACL or Unix permissions. CIFS on the other hand needs to * know if the requested operation can succeed for the given object, this * requires more checks in case of DELETE bit since permissions on the parent * directory are important as well. Based on Windows rules if parent's ACL * grant FILE_DELETE_CHILD a file can be delete regardless of the file's * permissions. */ int smb_vop_access(vnode_t *vp, int mode, int flags, vnode_t *dir_vp, cred_t *cr) { int error = 0; if (mode == 0) return (0); if ((flags == V_ACE_MASK) && (mode & ACE_DELETE)) { if (dir_vp) { error = VOP_ACCESS(dir_vp, ACE_DELETE_CHILD, flags, cr, NULL); if (error == 0) mode &= ~ACE_DELETE; } } if (mode) { error = VOP_ACCESS(vp, mode, flags, cr, NULL); } return (error); } /* * smb_vop_lookup * * dvp: directory vnode (in) * name: name of file to be looked up (in) * vpp: looked-up vnode (out) * od_name: on-disk name of file (out). * This parameter is optional. If a pointer is passed in, it * must be allocated with MAXNAMELEN bytes * rootvp: vnode of the tree root (in) * This parameter is always passed in non-NULL except at the time * of share set up. */ int smb_vop_lookup( vnode_t *dvp, char *name, vnode_t **vpp, char *od_name, int flags, vnode_t *rootvp, cred_t *cr) { int error = 0; int option_flags = 0; pathname_t rpn; if (*name == '\0') return (EINVAL); ASSERT(vpp); *vpp = NULL; if ((name[0] == '.') && (name[1] == '.') && (name[2] == 0)) { if (rootvp && (dvp == rootvp)) { VN_HOLD(dvp); *vpp = dvp; return (0); } if (dvp->v_flag & VROOT) { vfs_t *vfsp; vnode_t *cvp = dvp; /* * Set dvp and check for races with forced unmount * (see lookuppnvp()) */ vfsp = cvp->v_vfsp; vfs_rlock_wait(vfsp); if (((dvp = cvp->v_vfsp->vfs_vnodecovered) == NULL) || (cvp->v_vfsp->vfs_flag & VFS_UNMOUNTED)) { vfs_unlock(vfsp); return (EIO); } vfs_unlock(vfsp); } } if (flags & SMB_IGNORE_CASE) option_flags = FIGNORECASE; pn_alloc(&rpn); error = VOP_LOOKUP(dvp, name, vpp, NULL, option_flags, NULL, cr, &smb_ct, NULL, &rpn); if ((error == 0) && od_name) { bzero(od_name, MAXNAMELEN); if (option_flags == FIGNORECASE) (void) strlcpy(od_name, rpn.pn_buf, MAXNAMELEN); else (void) strlcpy(od_name, name, MAXNAMELEN); } pn_free(&rpn); return (error); } int smb_vop_create(vnode_t *dvp, char *name, smb_attr_t *attr, vnode_t **vpp, int flags, cred_t *cr, vsecattr_t *vsap) { int error; int option_flags = 0; xvattr_t xvattr; vattr_t *vap; if (flags & SMB_IGNORE_CASE) option_flags = FIGNORECASE; attr->sa_vattr.va_mask = 0; if (vfs_has_feature(dvp->v_vfsp, VFSFT_XVATTR)) { smb_vop_setup_xvattr(attr, &xvattr); vap = &xvattr.xva_vattr; } else { smb_sa_to_va_mask(attr->sa_mask, &attr->sa_vattr.va_mask); vap = &attr->sa_vattr; } error = VOP_CREATE(dvp, name, vap, EXCL, attr->sa_vattr.va_mode, vpp, cr, option_flags, &smb_ct, vsap); return (error); } int smb_vop_remove(vnode_t *dvp, char *name, int flags, cred_t *cr) { int error; int option_flags = 0; if (flags & SMB_IGNORE_CASE) option_flags = FIGNORECASE; error = VOP_REMOVE(dvp, name, cr, &smb_ct, option_flags); return (error); } /* * smb_vop_rename() * * The rename is for files in the same tree (identical TID) only. */ int smb_vop_rename(vnode_t *from_dvp, char *from_name, vnode_t *to_dvp, char *to_name, int flags, cred_t *cr) { int error; int option_flags = 0; if (flags & SMB_IGNORE_CASE) option_flags = FIGNORECASE; error = VOP_RENAME(from_dvp, from_name, to_dvp, to_name, cr, &smb_ct, option_flags); return (error); } int smb_vop_mkdir(vnode_t *dvp, char *name, smb_attr_t *attr, vnode_t **vpp, int flags, cred_t *cr, vsecattr_t *vsap) { int error; int option_flags = 0; xvattr_t xvattr; vattr_t *vap; if (flags & SMB_IGNORE_CASE) option_flags = FIGNORECASE; attr->sa_vattr.va_mask = 0; if (vfs_has_feature(dvp->v_vfsp, VFSFT_XVATTR)) { smb_vop_setup_xvattr(attr, &xvattr); vap = &xvattr.xva_vattr; } else { smb_sa_to_va_mask(attr->sa_mask, &attr->sa_vattr.va_mask); vap = &attr->sa_vattr; } error = VOP_MKDIR(dvp, name, vap, vpp, cr, &smb_ct, option_flags, vsap); return (error); } /* * smb_vop_rmdir() * * Only simple rmdir supported, consistent with NT semantics * (can only remove an empty directory). * */ int smb_vop_rmdir(vnode_t *dvp, char *name, int flags, cred_t *cr) { int error; int option_flags = 0; if (flags & SMB_IGNORE_CASE) option_flags = FIGNORECASE; /* * Comments adapted from rfs_rmdir(). * * VOP_RMDIR now takes a new third argument (the current * directory of the process). That's because rmdir * wants to return EINVAL if one tries to remove ".". * Of course, SMB servers do not know what their * clients' current directories are. We fake it by * supplying a vnode known to exist and illegal to * remove. */ error = VOP_RMDIR(dvp, name, rootdir, cr, &smb_ct, option_flags); return (error); } int smb_vop_commit(vnode_t *vp, cred_t *cr) { return (VOP_FSYNC(vp, 1, cr, &smb_ct)); } static void smb_vop_setup_xvattr(smb_attr_t *smb_attr, xvattr_t *xvattr) { xoptattr_t *xoap = NULL; uint_t xva_mask; /* * Initialize xvattr, including bzero */ xva_init(xvattr); xoap = xva_getxoptattr(xvattr); ASSERT(xoap); /* * Copy caller-specified classic attributes to xvattr. * First save xvattr's mask (set in xva_init()), which * contains AT_XVATTR. This is |'d in later if needed. */ xva_mask = xvattr->xva_vattr.va_mask; xvattr->xva_vattr = smb_attr->sa_vattr; smb_sa_to_va_mask(smb_attr->sa_mask, &xvattr->xva_vattr.va_mask); /* * Do not set ctime (only the file system can do it) */ xvattr->xva_vattr.va_mask &= ~AT_CTIME; if (smb_attr->sa_mask & SMB_AT_DOSATTR) { /* * "|" in the original xva_mask, which contains * AT_XVATTR */ xvattr->xva_vattr.va_mask |= xva_mask; XVA_SET_REQ(xvattr, XAT_ARCHIVE); XVA_SET_REQ(xvattr, XAT_SYSTEM); XVA_SET_REQ(xvattr, XAT_READONLY); XVA_SET_REQ(xvattr, XAT_HIDDEN); /* * smb_attr->sa_dosattr: If a given bit is not set, * that indicates that the corresponding field needs * to be updated with a "0" value. This is done * implicitly as the xoap->xoa_* fields were bzero'd. */ if (smb_attr->sa_dosattr & FILE_ATTRIBUTE_ARCHIVE) xoap->xoa_archive = 1; if (smb_attr->sa_dosattr & FILE_ATTRIBUTE_SYSTEM) xoap->xoa_system = 1; if (smb_attr->sa_dosattr & FILE_ATTRIBUTE_READONLY) xoap->xoa_readonly = 1; if (smb_attr->sa_dosattr & FILE_ATTRIBUTE_HIDDEN) xoap->xoa_hidden = 1; } if (smb_attr->sa_mask & SMB_AT_CRTIME) { /* * "|" in the original xva_mask, which contains * AT_XVATTR */ xvattr->xva_vattr.va_mask |= xva_mask; XVA_SET_REQ(xvattr, XAT_CREATETIME); xoap->xoa_createtime = smb_attr->sa_crtime; } } /* * smb_vop_readdir() * * Collects an SMB_MINLEN_RDDIR_BUF "page" of directory entries. * The directory entries are returned in an fs-independent format by the * underlying file system. That is, the "page" of information returned is * not literally stored on-disk in the format returned. * If the file system supports extended directory entries (has features * VFSFT_DIRENTFLAGS), set V_RDDIR_ENTFLAGS to cause the buffer to be * filled with edirent_t structures, instead of dirent64_t structures. * * Some file systems can have directories larger than SMB_MAXDIRSIZE. * After VOP_READDIR, if offset is larger than SMB_MAXDIRSIZE treat as EOF. */ int smb_vop_readdir(vnode_t *vp, uint32_t offset, void *buf, int *count, int *eof, cred_t *cr) { int error = 0; int rdirent_flags = 0; int rdirent_size; struct uio auio; struct iovec aiov; if (vp->v_type != VDIR) return (ENOTDIR); if (vfs_has_feature(vp->v_vfsp, VFSFT_DIRENTFLAGS)) { rdirent_flags = V_RDDIR_ENTFLAGS; rdirent_size = sizeof (edirent_t); } else { rdirent_size = sizeof (dirent64_t); } if (*count < rdirent_size) return (EINVAL); aiov.iov_base = buf; aiov.iov_len = *count; auio.uio_iov = &aiov; auio.uio_iovcnt = 1; auio.uio_loffset = (uint64_t)offset; auio.uio_segflg = UIO_SYSSPACE; auio.uio_resid = *count; auio.uio_fmode = 0; (void) VOP_RWLOCK(vp, V_WRITELOCK_FALSE, &smb_ct); error = VOP_READDIR(vp, &auio, cr, eof, &smb_ct, rdirent_flags); VOP_RWUNLOCK(vp, V_WRITELOCK_FALSE, &smb_ct); if (auio.uio_loffset > SMB_MAXDIRSIZE) *eof = 1; if (error == 0) *count = *count - auio.uio_resid; return (error); } /* * smb_sa_to_va_mask * * Set va_mask by running through the SMB_AT_* #define's and * setting those bits that correspond to the SMB_AT_* bits * set in sa_mask. */ void smb_sa_to_va_mask(uint_t sa_mask, uint_t *va_maskp) { int i; uint_t smask; smask = (sa_mask); for (i = SMB_AT_TYPE; (i < SMB_AT_MAX) && (smask != 0); ++i) { if (smask & 1) *(va_maskp) |= smb_attrmap[i]; smask >>= 1; } } /* * smb_vop_stream_lookup() * * The name returned in od_name is the on-disk name of the stream with the * SMB_STREAM_PREFIX stripped off. od_name should be allocated to MAXNAMELEN * by the caller. */ int smb_vop_stream_lookup( vnode_t *fvp, char *stream_name, vnode_t **vpp, char *od_name, vnode_t **xattrdirvpp, int flags, vnode_t *rootvp, cred_t *cr) { char *solaris_stream_name; char *name; int error; if ((error = smb_vop_lookup_xattrdir(fvp, xattrdirvpp, LOOKUP_XATTR | CREATE_XATTR_DIR, cr)) != 0) return (error); /* * Prepend SMB_STREAM_PREFIX to stream name */ solaris_stream_name = kmem_alloc(MAXNAMELEN, KM_SLEEP); (void) sprintf(solaris_stream_name, "%s%s", SMB_STREAM_PREFIX, stream_name); /* * "name" will hold the on-disk name returned from smb_vop_lookup * for the stream, including the SMB_STREAM_PREFIX. */ name = kmem_zalloc(MAXNAMELEN, KM_SLEEP); if ((error = smb_vop_lookup(*xattrdirvpp, solaris_stream_name, vpp, name, flags, rootvp, cr)) != 0) { VN_RELE(*xattrdirvpp); } else { (void) strlcpy(od_name, &(name[SMB_STREAM_PREFIX_LEN]), MAXNAMELEN); } kmem_free(solaris_stream_name, MAXNAMELEN); kmem_free(name, MAXNAMELEN); return (error); } int smb_vop_stream_create(vnode_t *fvp, char *stream_name, smb_attr_t *attr, vnode_t **vpp, vnode_t **xattrdirvpp, int flags, cred_t *cr) { char *solaris_stream_name; int error; if ((error = smb_vop_lookup_xattrdir(fvp, xattrdirvpp, LOOKUP_XATTR | CREATE_XATTR_DIR, cr)) != 0) return (error); /* * Prepend SMB_STREAM_PREFIX to stream name */ solaris_stream_name = kmem_alloc(MAXNAMELEN, KM_SLEEP); (void) sprintf(solaris_stream_name, "%s%s", SMB_STREAM_PREFIX, stream_name); if ((error = smb_vop_create(*xattrdirvpp, solaris_stream_name, attr, vpp, flags, cr, NULL)) != 0) VN_RELE(*xattrdirvpp); kmem_free(solaris_stream_name, MAXNAMELEN); return (error); } int smb_vop_stream_remove(vnode_t *vp, char *stream_name, int flags, cred_t *cr) { char *solaris_stream_name; vnode_t *xattrdirvp; int error; error = smb_vop_lookup_xattrdir(vp, &xattrdirvp, LOOKUP_XATTR, cr); if (error != 0) return (error); /* * Prepend SMB_STREAM_PREFIX to stream name */ solaris_stream_name = kmem_alloc(MAXNAMELEN, KM_SLEEP); (void) sprintf(solaris_stream_name, "%s%s", SMB_STREAM_PREFIX, stream_name); /* XXX might have to use kcred */ error = smb_vop_remove(xattrdirvp, solaris_stream_name, flags, cr); kmem_free(solaris_stream_name, MAXNAMELEN); return (error); } int smb_vop_lookup_xattrdir(vnode_t *fvp, vnode_t **xattrdirvpp, int flags, cred_t *cr) { int error; error = VOP_LOOKUP(fvp, "", xattrdirvpp, NULL, flags, NULL, cr, &smb_ct, NULL, NULL); return (error); } /* * smb_vop_traverse_check() * * This function checks to see if the passed-in vnode has a file system * mounted on it. If it does, the mount point is "traversed" and the * vnode for the root of the file system is returned. */ int smb_vop_traverse_check(vnode_t **vpp) { int error; if (vn_mountedvfs(*vpp) == 0) return (0); /* * traverse() may return a different held vnode, even in the error case. * If it returns a different vnode, it will have released the original. */ error = traverse(vpp); return (error); } int /*ARGSUSED*/ smb_vop_statfs(vnode_t *vp, struct statvfs64 *statp, cred_t *cr) { int error; error = VFS_STATVFS(vp->v_vfsp, statp); return (error); } /* * smb_vop_acl_read * * Reads the ACL of the specified file into 'aclp'. * acl_type is the type of ACL which the filesystem supports. * * Caller has to free the allocated memory for aclp by calling * acl_free(). */ int smb_vop_acl_read(vnode_t *vp, acl_t **aclp, int flags, acl_type_t acl_type, cred_t *cr) { int error; vsecattr_t vsecattr; ASSERT(vp); ASSERT(aclp); *aclp = NULL; bzero(&vsecattr, sizeof (vsecattr_t)); switch (acl_type) { case ACLENT_T: vsecattr.vsa_mask = VSA_ACL | VSA_ACLCNT | VSA_DFACL | VSA_DFACLCNT; break; case ACE_T: vsecattr.vsa_mask = VSA_ACE | VSA_ACECNT | VSA_ACE_ACLFLAGS; break; default: return (EINVAL); } if (error = VOP_GETSECATTR(vp, &vsecattr, flags, cr, &smb_ct)) return (error); *aclp = smb_fsacl_from_vsa(&vsecattr, acl_type); if (vp->v_type == VDIR) (*aclp)->acl_flags |= ACL_IS_DIR; return (0); } /* * smb_vop_acl_write * * Writes the given ACL in aclp for the specified file. */ int smb_vop_acl_write(vnode_t *vp, acl_t *aclp, int flags, cred_t *cr) { int error; vsecattr_t vsecattr; int aclbsize; ASSERT(vp); ASSERT(aclp); error = smb_fsacl_to_vsa(aclp, &vsecattr, &aclbsize); if (error == 0) { (void) VOP_RWLOCK(vp, V_WRITELOCK_TRUE, &smb_ct); error = VOP_SETSECATTR(vp, &vsecattr, flags, cr, &smb_ct); VOP_RWUNLOCK(vp, V_WRITELOCK_TRUE, &smb_ct); } if (aclbsize && vsecattr.vsa_aclentp) kmem_free(vsecattr.vsa_aclentp, aclbsize); return (error); } /* * smb_vop_acl_type * * Determines the ACL type for the given vnode. * ACLENT_T is a Posix ACL and ACE_T is a ZFS ACL. */ acl_type_t smb_vop_acl_type(vnode_t *vp) { int error; ulong_t whichacl; error = VOP_PATHCONF(vp, _PC_ACL_ENABLED, &whichacl, kcred, NULL); if (error != 0) { /* * If we got an error, then the filesystem * likely does not understand the _PC_ACL_ENABLED * pathconf. In this case, we fall back to trying * POSIX-draft (aka UFS-style) ACLs. */ whichacl = _ACL_ACLENT_ENABLED; } if (!(whichacl & (_ACL_ACE_ENABLED | _ACL_ACLENT_ENABLED))) { /* * If the file system supports neither ACE nor * ACLENT ACLs we will fall back to UFS-style ACLs * like we did above if there was an error upon * calling VOP_PATHCONF. * * ACE and ACLENT type ACLs are the only interfaces * supported thus far. If any other bits are set on * 'whichacl' upon return from VOP_PATHCONF, we will * ignore them. */ whichacl = _ACL_ACLENT_ENABLED; } if (whichacl == _ACL_ACLENT_ENABLED) return (ACLENT_T); return (ACE_T); } static int zfs_perms[] = { ACE_READ_DATA, ACE_WRITE_DATA, ACE_APPEND_DATA, ACE_READ_NAMED_ATTRS, ACE_WRITE_NAMED_ATTRS, ACE_EXECUTE, ACE_DELETE_CHILD, ACE_READ_ATTRIBUTES, ACE_WRITE_ATTRIBUTES, ACE_DELETE, ACE_READ_ACL, ACE_WRITE_ACL, ACE_WRITE_OWNER, ACE_SYNCHRONIZE }; static int unix_perms[] = { VREAD, VWRITE, VEXEC }; /* * smb_vop_eaccess * * Returns the effective permission of the given credential for the * specified object. * * This is just a workaround. We need VFS/FS support for this. */ void smb_vop_eaccess(vnode_t *vp, int *mode, int flags, vnode_t *dir_vp, cred_t *cr) { int error, i; int pnum; *mode = 0; if (flags == V_ACE_MASK) { pnum = sizeof (zfs_perms) / sizeof (int); for (i = 0; i < pnum; i++) { error = smb_vop_access(vp, zfs_perms[i], flags, dir_vp, cr); if (error == 0) *mode |= zfs_perms[i]; } } else { pnum = sizeof (unix_perms) / sizeof (int); for (i = 0; i < pnum; i++) { error = smb_vop_access(vp, unix_perms[i], flags, dir_vp, cr); if (error == 0) *mode |= unix_perms[i]; } } } /* * smb_vop_shrlock() * * See comments for smb_fsop_shrlock() */ int smb_vop_shrlock(vnode_t *vp, uint32_t uniq_fid, uint32_t desired_access, uint32_t share_access, cred_t *cr) { struct shrlock shr; struct shr_locowner shr_own; short new_access = 0; short deny = 0; int flag = 0; int cmd; cmd = (nbl_need_check(vp)) ? F_SHARE_NBMAND : F_SHARE; /* * Check if this is a metadata access */ if ((desired_access & FILE_DATA_ALL) == 0) { new_access |= F_MDACC; } else { if (desired_access & (ACE_READ_DATA | ACE_EXECUTE)) { new_access |= F_RDACC; flag |= FREAD; } if (desired_access & (ACE_WRITE_DATA | ACE_APPEND_DATA | ACE_ADD_FILE)) { new_access |= F_WRACC; flag |= FWRITE; } if (SMB_DENY_READ(share_access)) { deny |= F_RDDNY; } if (SMB_DENY_WRITE(share_access)) { deny |= F_WRDNY; } if (cmd == F_SHARE_NBMAND) { if (desired_access & ACE_DELETE) new_access |= F_RMACC; if (SMB_DENY_DELETE(share_access)) { deny |= F_RMDNY; } } } shr.s_access = new_access; shr.s_deny = deny; shr.s_sysid = smb_ct.cc_sysid; shr.s_pid = uniq_fid; shr.s_own_len = sizeof (shr_own); shr.s_owner = (caddr_t)&shr_own; shr_own.sl_id = shr.s_sysid; shr_own.sl_pid = shr.s_pid; return (VOP_SHRLOCK(vp, cmd, &shr, flag, cr, NULL)); } int smb_vop_unshrlock(vnode_t *vp, uint32_t uniq_fid, cred_t *cr) { struct shrlock shr; struct shr_locowner shr_own; /* * For s_access and s_deny, we do not need to pass in the original * values. */ shr.s_access = 0; shr.s_deny = 0; shr.s_sysid = smb_ct.cc_sysid; shr.s_pid = uniq_fid; shr.s_own_len = sizeof (shr_own); shr.s_owner = (caddr_t)&shr_own; shr_own.sl_id = shr.s_sysid; shr_own.sl_pid = shr.s_pid; return (VOP_SHRLOCK(vp, F_UNSHARE, &shr, 0, cr, NULL)); } int smb_vop_frlock(vnode_t *vp, cred_t *cr, int flag, flock64_t *bf) { int cmd = nbl_need_check(vp) ? F_SETLK_NBMAND : F_SETLK; flk_callback_t flk_cb; flk_init_callback(&flk_cb, smb_lock_frlock_callback, NULL); return (VOP_FRLOCK(vp, cmd, bf, flag, 0, &flk_cb, cr, &smb_ct)); } static callb_cpr_t * /* ARGSUSED */ smb_lock_frlock_callback(flk_cb_when_t when, void *error) { return (0); }