static int zpl_mknod(struct inode *dir, struct dentry *dentry, zpl_umode_t mode, dev_t rdev) { cred_t *cr = CRED(); struct inode *ip; vattr_t *vap; int error; /* * We currently expect Linux to supply rdev=0 for all sockets * and fifos, but we want to know if this behavior ever changes. */ if (S_ISSOCK(mode) || S_ISFIFO(mode)) ASSERT(rdev == 0); crhold(cr); vap = kmem_zalloc(sizeof(vattr_t), KM_SLEEP); zpl_vap_init(vap, dir, dentry, mode, cr); vap->va_rdev = rdev; error = -zfs_create(dir, (char *)dentry->d_name.name, vap, 0, mode, &ip, cr, 0, NULL); kmem_free(vap, sizeof(vattr_t)); crfree(cr); ASSERT3S(error, <=, 0); return (-error); }
zpl_create(struct inode *dir, struct dentry *dentry, zpl_umode_t mode, bool flag) #endif { cred_t *cr = CRED(); struct inode *ip; vattr_t *vap; int error; fstrans_cookie_t cookie; crhold(cr); vap = kmem_zalloc(sizeof (vattr_t), KM_SLEEP); zpl_vap_init(vap, dir, mode, cr); cookie = spl_fstrans_mark(); error = -zfs_create(dir, dname(dentry), vap, 0, mode, &ip, cr, 0, NULL); if (error == 0) { d_instantiate(dentry, ip); error = zpl_xattr_security_init(ip, dir, &dentry->d_name); if (error == 0) error = zpl_init_acl(ip, dir); if (error) (void) zfs_remove(dir, dname(dentry), cr, 0); } spl_fstrans_unmark(cookie); kmem_free(vap, sizeof (vattr_t)); crfree(cr); ASSERT3S(error, <=, 0); return (error); }
static int zpl_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t rdev) { cred_t *cr = CRED(); struct inode *ip; vattr_t *vap; int error; crhold(cr); vap = kmem_zalloc(sizeof(vattr_t), KM_SLEEP); vap->va_mode = mode; vap->va_mask = ATTR_MODE; vap->va_rdev = rdev; vap->va_uid = crgetfsuid(cr); vap->va_gid = crgetfsgid(cr); vap->va_dentry = dentry; error = -zfs_create(dir, (char *)dentry->d_name.name, vap, 0, mode, &ip, cr, 0, NULL); kmem_free(vap, sizeof(vattr_t)); crfree(cr); ASSERT3S(error, <=, 0); return (-error); }
static int zpl_mknod(struct inode *dir, struct dentry *dentry, zpl_umode_t mode, dev_t rdev) { cred_t *cr = CRED(); struct inode *ip; vattr_t *vap; int error; fstrans_cookie_t cookie; /* * We currently expect Linux to supply rdev=0 for all sockets * and fifos, but we want to know if this behavior ever changes. */ if (S_ISSOCK(mode) || S_ISFIFO(mode)) ASSERT(rdev == 0); crhold(cr); vap = kmem_zalloc(sizeof (vattr_t), KM_SLEEP); zpl_vap_init(vap, dir, mode, cr); vap->va_rdev = rdev; cookie = spl_fstrans_mark(); error = -zfs_create(dir, dname(dentry), vap, 0, mode, &ip, cr, 0, NULL); if (error == 0) { d_instantiate(dentry, ip); error = zpl_xattr_security_init(ip, dir, &dentry->d_name); if (error == 0) error = zpl_init_acl(ip, dir); if (error) (void) zfs_remove(dir, dname(dentry), cr, 0); } spl_fstrans_unmark(cookie); kmem_free(vap, sizeof (vattr_t)); crfree(cr); ASSERT3S(error, <=, 0); return (error); }
static int zpl_create(struct inode *dir, struct dentry *dentry, zpl_umode_t mode, struct nameidata *nd) { cred_t *cr = CRED(); struct inode *ip; vattr_t *vap; int error; crhold(cr); vap = kmem_zalloc(sizeof(vattr_t), KM_SLEEP); zpl_vap_init(vap, dir, dentry, mode, cr); error = -zfs_create(dir, (char *)dentry->d_name.name, vap, 0, mode, &ip, cr, 0, NULL); kmem_free(vap, sizeof(vattr_t)); crfree(cr); ASSERT3S(error, <=, 0); return (error); }
static int zpl_xattr_set_dir(struct inode *ip, const char *name, const void *value, size_t size, int flags, cred_t *cr) { struct inode *dxip = NULL; struct inode *xip = NULL; vattr_t *vap = NULL; ssize_t wrote; int lookup_flags, error; const int xattr_mode = S_IFREG | 0644; /* * Lookup the xattr directory. When we're adding an entry pass * CREATE_XATTR_DIR to ensure the xattr directory is created. * When removing an entry this flag is not passed to avoid * unnecessarily creating a new xattr directory. */ lookup_flags = LOOKUP_XATTR; if (value != NULL) lookup_flags |= CREATE_XATTR_DIR; error = -zfs_lookup(ip, NULL, &dxip, lookup_flags, cr, NULL, NULL); if (error) goto out; /* Lookup a specific xattr name in the directory */ error = -zfs_lookup(dxip, (char *)name, &xip, 0, cr, NULL, NULL); if (error && (error != -ENOENT)) goto out; error = 0; /* Remove a specific name xattr when value is set to NULL. */ if (value == NULL) { if (xip) error = -zfs_remove(dxip, (char *)name, cr); goto out; } /* Lookup failed create a new xattr. */ if (xip == NULL) { vap = kmem_zalloc(sizeof(vattr_t), KM_SLEEP); vap->va_mode = xattr_mode; vap->va_mask = ATTR_MODE; vap->va_uid = crgetfsuid(cr); vap->va_gid = crgetfsgid(cr); error = -zfs_create(dxip, (char *)name, vap, 0, 0644, &xip, cr, 0, NULL); if (error) goto out; } ASSERT(xip != NULL); error = -zfs_freesp(ITOZ(xip), 0, 0, xattr_mode, TRUE); if (error) goto out; wrote = zpl_write_common(xip, value, size, 0, UIO_SYSSPACE, 0, cr); if (wrote < 0) error = wrote; out: if (vap) kmem_free(vap, sizeof(vattr_t)); if (xip) iput(xip); if (dxip) iput(dxip); if (error == -ENOENT) error = -ENODATA; ASSERT3S(error, <=, 0); return (error); }
static int zfs_replay_create(zfsvfs_t *zfsvfs, lr_create_t *lr, boolean_t byteswap) { char *name = NULL; /* location determined later */ char *link; /* symlink content follows name */ znode_t *dzp; struct inode *ip = NULL; xvattr_t xva; int vflg = 0; size_t lrsize = sizeof (lr_create_t); lr_attr_t *lrattr; void *start; size_t xvatlen; uint64_t txtype; uint64_t objid; uint64_t dnodesize; int error; txtype = (lr->lr_common.lrc_txtype & ~TX_CI); if (byteswap) { byteswap_uint64_array(lr, sizeof (*lr)); if (txtype == TX_CREATE_ATTR || txtype == TX_MKDIR_ATTR) zfs_replay_swap_attrs((lr_attr_t *)(lr + 1)); } if ((error = zfs_zget(zfsvfs, lr->lr_doid, &dzp)) != 0) return (error); objid = LR_FOID_GET_OBJ(lr->lr_foid); dnodesize = LR_FOID_GET_SLOTS(lr->lr_foid) << DNODE_SHIFT; xva_init(&xva); zfs_init_vattr(&xva.xva_vattr, ATTR_MODE | ATTR_UID | ATTR_GID, lr->lr_mode, lr->lr_uid, lr->lr_gid, lr->lr_rdev, objid); /* * All forms of zfs create (create, mkdir, mkxattrdir, symlink) * eventually end up in zfs_mknode(), which assigns the object's * creation time, generation number, and dnode slot count. The * generic zfs_create() has no concept of these attributes, so * we smuggle the values inside * the vattr's otherwise unused * va_ctime, va_nblocks, and va_nlink fields. */ ZFS_TIME_DECODE(&xva.xva_vattr.va_ctime, lr->lr_crtime); xva.xva_vattr.va_nblocks = lr->lr_gen; xva.xva_vattr.va_fsid = dnodesize; error = dmu_object_info(zfsvfs->z_os, objid, NULL); if (error != ENOENT) goto out; if (lr->lr_common.lrc_txtype & TX_CI) vflg |= FIGNORECASE; /* * Symlinks don't have fuid info, and CIFS never creates * symlinks. * * The _ATTR versions will grab the fuid info in their subcases. */ if ((int)lr->lr_common.lrc_txtype != TX_SYMLINK && (int)lr->lr_common.lrc_txtype != TX_MKDIR_ATTR && (int)lr->lr_common.lrc_txtype != TX_CREATE_ATTR) { start = (lr + 1); zfsvfs->z_fuid_replay = zfs_replay_fuid_domain(start, &start, lr->lr_uid, lr->lr_gid); } switch (txtype) { case TX_CREATE_ATTR: lrattr = (lr_attr_t *)(caddr_t)(lr + 1); xvatlen = ZIL_XVAT_SIZE(lrattr->lr_attr_masksize); zfs_replay_xvattr((lr_attr_t *)((caddr_t)lr + lrsize), &xva); start = (caddr_t)(lr + 1) + xvatlen; zfsvfs->z_fuid_replay = zfs_replay_fuid_domain(start, &start, lr->lr_uid, lr->lr_gid); name = (char *)start; /*FALLTHROUGH*/ case TX_CREATE: if (name == NULL) name = (char *)start; error = zfs_create(ZTOI(dzp), name, &xva.xva_vattr, 0, 0, &ip, kcred, vflg, NULL); break; case TX_MKDIR_ATTR: lrattr = (lr_attr_t *)(caddr_t)(lr + 1); xvatlen = ZIL_XVAT_SIZE(lrattr->lr_attr_masksize); zfs_replay_xvattr((lr_attr_t *)((caddr_t)lr + lrsize), &xva); start = (caddr_t)(lr + 1) + xvatlen; zfsvfs->z_fuid_replay = zfs_replay_fuid_domain(start, &start, lr->lr_uid, lr->lr_gid); name = (char *)start; /*FALLTHROUGH*/ case TX_MKDIR: if (name == NULL) name = (char *)(lr + 1); error = zfs_mkdir(ZTOI(dzp), name, &xva.xva_vattr, &ip, kcred, vflg, NULL); break; case TX_MKXATTR: error = zfs_make_xattrdir(dzp, &xva.xva_vattr, &ip, kcred); break; case TX_SYMLINK: name = (char *)(lr + 1); link = name + strlen(name) + 1; error = zfs_symlink(ZTOI(dzp), name, &xva.xva_vattr, link, &ip, kcred, vflg); break; default: error = SET_ERROR(ENOTSUP); } out: if (error == 0 && ip != NULL) iput(ip); iput(ZTOI(dzp)); if (zfsvfs->z_fuid_replay) zfs_fuid_info_free(zfsvfs->z_fuid_replay); zfsvfs->z_fuid_replay = NULL; return (error); }
/* * Replay file create with optional ACL, xvattr information as well * as option FUID information. */ static int zfs_replay_create_acl(zfsvfs_t *zfsvfs, lr_acl_create_t *lracl, boolean_t byteswap) { char *name = NULL; /* location determined later */ lr_create_t *lr = (lr_create_t *)lracl; znode_t *dzp; struct inode *ip = NULL; xvattr_t xva; int vflg = 0; vsecattr_t vsec = { 0 }; lr_attr_t *lrattr; void *aclstart; void *fuidstart; size_t xvatlen = 0; uint64_t txtype; uint64_t objid; uint64_t dnodesize; int error; txtype = (lr->lr_common.lrc_txtype & ~TX_CI); if (byteswap) { byteswap_uint64_array(lracl, sizeof (*lracl)); if (txtype == TX_CREATE_ACL_ATTR || txtype == TX_MKDIR_ACL_ATTR) { lrattr = (lr_attr_t *)(caddr_t)(lracl + 1); zfs_replay_swap_attrs(lrattr); xvatlen = ZIL_XVAT_SIZE(lrattr->lr_attr_masksize); } aclstart = (caddr_t)(lracl + 1) + xvatlen; zfs_ace_byteswap(aclstart, lracl->lr_acl_bytes, B_FALSE); /* swap fuids */ if (lracl->lr_fuidcnt) { byteswap_uint64_array((caddr_t)aclstart + ZIL_ACE_LENGTH(lracl->lr_acl_bytes), lracl->lr_fuidcnt * sizeof (uint64_t)); } } if ((error = zfs_zget(zfsvfs, lr->lr_doid, &dzp)) != 0) return (error); objid = LR_FOID_GET_OBJ(lr->lr_foid); dnodesize = LR_FOID_GET_SLOTS(lr->lr_foid) << DNODE_SHIFT; xva_init(&xva); zfs_init_vattr(&xva.xva_vattr, ATTR_MODE | ATTR_UID | ATTR_GID, lr->lr_mode, lr->lr_uid, lr->lr_gid, lr->lr_rdev, objid); /* * All forms of zfs create (create, mkdir, mkxattrdir, symlink) * eventually end up in zfs_mknode(), which assigns the object's * creation time, generation number, and dnode size. The generic * zfs_create() has no concept of these attributes, so we smuggle * the values inside the vattr's otherwise unused va_ctime, * va_nblocks, and va_fsid fields. */ ZFS_TIME_DECODE(&xva.xva_vattr.va_ctime, lr->lr_crtime); xva.xva_vattr.va_nblocks = lr->lr_gen; xva.xva_vattr.va_fsid = dnodesize; error = dmu_object_info(zfsvfs->z_os, lr->lr_foid, NULL); if (error != ENOENT) goto bail; if (lr->lr_common.lrc_txtype & TX_CI) vflg |= FIGNORECASE; switch (txtype) { case TX_CREATE_ACL: aclstart = (caddr_t)(lracl + 1); fuidstart = (caddr_t)aclstart + ZIL_ACE_LENGTH(lracl->lr_acl_bytes); zfsvfs->z_fuid_replay = zfs_replay_fuids(fuidstart, (void *)&name, lracl->lr_fuidcnt, lracl->lr_domcnt, lr->lr_uid, lr->lr_gid); /*FALLTHROUGH*/ case TX_CREATE_ACL_ATTR: if (name == NULL) { lrattr = (lr_attr_t *)(caddr_t)(lracl + 1); xvatlen = ZIL_XVAT_SIZE(lrattr->lr_attr_masksize); xva.xva_vattr.va_mask |= ATTR_XVATTR; zfs_replay_xvattr(lrattr, &xva); } vsec.vsa_mask = VSA_ACE | VSA_ACE_ACLFLAGS; vsec.vsa_aclentp = (caddr_t)(lracl + 1) + xvatlen; vsec.vsa_aclcnt = lracl->lr_aclcnt; vsec.vsa_aclentsz = lracl->lr_acl_bytes; vsec.vsa_aclflags = lracl->lr_acl_flags; if (zfsvfs->z_fuid_replay == NULL) { fuidstart = (caddr_t)(lracl + 1) + xvatlen + ZIL_ACE_LENGTH(lracl->lr_acl_bytes); zfsvfs->z_fuid_replay = zfs_replay_fuids(fuidstart, (void *)&name, lracl->lr_fuidcnt, lracl->lr_domcnt, lr->lr_uid, lr->lr_gid); } error = zfs_create(ZTOI(dzp), name, &xva.xva_vattr, 0, 0, &ip, kcred, vflg, &vsec); break; case TX_MKDIR_ACL: aclstart = (caddr_t)(lracl + 1); fuidstart = (caddr_t)aclstart + ZIL_ACE_LENGTH(lracl->lr_acl_bytes); zfsvfs->z_fuid_replay = zfs_replay_fuids(fuidstart, (void *)&name, lracl->lr_fuidcnt, lracl->lr_domcnt, lr->lr_uid, lr->lr_gid); /*FALLTHROUGH*/ case TX_MKDIR_ACL_ATTR: if (name == NULL) { lrattr = (lr_attr_t *)(caddr_t)(lracl + 1); xvatlen = ZIL_XVAT_SIZE(lrattr->lr_attr_masksize); zfs_replay_xvattr(lrattr, &xva); } vsec.vsa_mask = VSA_ACE | VSA_ACE_ACLFLAGS; vsec.vsa_aclentp = (caddr_t)(lracl + 1) + xvatlen; vsec.vsa_aclcnt = lracl->lr_aclcnt; vsec.vsa_aclentsz = lracl->lr_acl_bytes; vsec.vsa_aclflags = lracl->lr_acl_flags; if (zfsvfs->z_fuid_replay == NULL) { fuidstart = (caddr_t)(lracl + 1) + xvatlen + ZIL_ACE_LENGTH(lracl->lr_acl_bytes); zfsvfs->z_fuid_replay = zfs_replay_fuids(fuidstart, (void *)&name, lracl->lr_fuidcnt, lracl->lr_domcnt, lr->lr_uid, lr->lr_gid); } error = zfs_mkdir(ZTOI(dzp), name, &xva.xva_vattr, &ip, kcred, vflg, &vsec); break; default: error = SET_ERROR(ENOTSUP); } bail: if (error == 0 && ip != NULL) iput(ip); iput(ZTOI(dzp)); if (zfsvfs->z_fuid_replay) zfs_fuid_info_free(zfsvfs->z_fuid_replay); zfsvfs->z_fuid_replay = NULL; return (error); }
static int zpl_xattr_set_dir(struct inode *ip, const char *name, const void *value, size_t size, int flags, cred_t *cr) { struct inode *dxip = NULL; struct inode *xip = NULL; vattr_t *vap = NULL; ssize_t wrote; int error; const int xattr_mode = S_IFREG | 0644; /* Lookup the xattr directory and create it if required. */ error = -zfs_lookup(ip, NULL, &dxip, LOOKUP_XATTR | CREATE_XATTR_DIR, cr, NULL, NULL); if (error) goto out; /* Lookup a specific xattr name in the directory */ error = -zfs_lookup(dxip, (char *)name, &xip, 0, cr, NULL, NULL); if (error && (error != -ENOENT)) goto out; error = 0; /* Remove a specific name xattr when value is set to NULL. */ if (value == NULL) { if (xip) error = -zfs_remove(dxip, (char *)name, cr); goto out; } /* Lookup failed create a new xattr. */ if (xip == NULL) { vap = kmem_zalloc(sizeof(vattr_t), KM_SLEEP); vap->va_mode = xattr_mode; vap->va_mask = ATTR_MODE; vap->va_uid = crgetfsuid(cr); vap->va_gid = crgetfsgid(cr); error = -zfs_create(dxip, (char *)name, vap, 0, 0644, &xip, cr, 0, NULL); if (error) goto out; } ASSERT(xip != NULL); error = -zfs_freesp(ITOZ(xip), 0, 0, xattr_mode, TRUE); if (error) goto out; wrote = zpl_write_common(xip, value, size, 0, UIO_SYSSPACE, 0, cr); if (wrote < 0) error = wrote; out: if (vap) kmem_free(vap, sizeof(vattr_t)); if (xip) VN_RELE(xip); if (dxip) VN_RELE(dxip); if (error == -ENOENT) error = -ENODATA; ASSERT3S(error, <=, 0); return (error); }
/* Create a home directory and populate with files from skeleton directory. */ int create_home(char *homedir, char *skeldir, uid_t uid, gid_t gid, int newfs) /* home directory to create */ /* skel directory to copy if indicated */ /* uid of new user */ /* group id of new user */ /* allow filesystem creation */ { struct stat stbuf; char *dname, *bname; char *dataset; if (g_zfs == NULL) g_zfs = libzfs_init(); (void) strcpy(dhome, homedir); (void) strcpy(bhome, homedir); dname = dirname(dhome); bname = basename(bhome); (void) strcpy(pdir, dname); if ((stat(pdir, &stbuf) != 0) || !S_ISDIR(stbuf.st_mode)) { errmsg(M_OOPS, "access the parent directory", strerror(errno)); return (EX_HOMEDIR); } if (strcmp(stbuf.st_fstype, MNTTYPE_AUTOFS) == 0) { (void) strcpy(pdir, EXPORTDIR); (void) strlcat(pdir, dname, PATH_MAX + 1); (void) snprintf(homedir, PATH_MAX + 1, "%s/%s", pdir, bname); if (stat(pdir, &stbuf) == 0) (void) edit_autofs_home(bname, bname, pdir); } if ((strcmp(stbuf.st_fstype, MNTTYPE_ZFS) == 0) && (g_zfs != NULL) && newfs && ((dataset = get_mnt_special(pdir, stbuf.st_fstype)) != NULL)) { char nm[ZFS_MAXNAMELEN]; zfs_handle_t *zhp; (void) snprintf(nm, ZFS_MAXNAMELEN, "%s/%s", dataset, bname); if ((zfs_create(g_zfs, nm, ZFS_TYPE_FILESYSTEM, NULL) != 0) || ((zhp = zfs_open(g_zfs, nm, ZFS_TYPE_FILESYSTEM)) == NULL)) { errmsg(M_OOPS, "create the home directory", libzfs_error_description(g_zfs)); return (EX_HOMEDIR); } if (zfs_mount(zhp, NULL, 0) != 0) { errmsg(M_OOPS, "mount the home directory", libzfs_error_description(g_zfs)); (void) zfs_destroy(zhp, B_FALSE); return (EX_HOMEDIR); } zfs_close(zhp); if (chmod(homedir, S_IRWXU|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH) != 0) { errmsg(M_OOPS, "change permissions of home directory", strerror(errno)); return (EX_HOMEDIR); } } else { if (mkdir(homedir, S_IRWXU|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH) != 0) { errmsg(M_OOPS, "create the home directory", strerror(errno)); return (EX_HOMEDIR); } } if( chown(homedir, uid, gid) != 0 ) { errmsg(M_OOPS, "change ownership of home directory", strerror(errno)); return( EX_HOMEDIR ); } if(skeldir) { /* copy the skel_dir into the home directory */ (void) sprintf( cmdbuf, "cd %s && find . -print | cpio -pd %s", skeldir, homedir); if( system( cmdbuf ) != 0 ) { errmsg(M_OOPS, "copy skeleton directory into home " "directory", strerror(errno)); (void) rm_homedir( homedir ); return( EX_HOMEDIR ); } /* make sure contents in the home dirctory have correct owner */ (void) sprintf( cmdbuf,"cd %s && find . -exec chown %ld {} \\;", homedir, uid ); if( system( cmdbuf ) != 0) { errmsg(M_OOPS, "change owner of files home directory", strerror(errno)); (void) rm_homedir( homedir ); return( EX_HOMEDIR ); } /* and group....... */ (void) sprintf( cmdbuf, "cd %s && find . -exec chgrp %ld {} \\;", homedir, gid ); if( system( cmdbuf ) != 0) { errmsg(M_OOPS, "change group of files home directory", strerror(errno)); (void) rm_homedir( homedir ); return( EX_HOMEDIR ); } } return( EX_SUCCESS ); }
/* * Create a home directory and populate with files from skeleton * directory. */ int create_home(char *homedir, char *skeldir, uid_t uid, gid_t gid, int flags) /* home directory to create */ /* skel directory to copy if indicated */ /* uid of new user */ /* group id of new user */ /* miscellaneous flags */ { struct stat stbuf; char *dataset; char *dname, *bname, *rp; int created_fs = 0; rp = realpath(homedir, NULL); if (rp && (strcmp(rp, "/") == 0)) { return (EX_HOMEDIR); } (void) strcpy(dhome, homedir); (void) strcpy(bhome, homedir); dname = dirname(dhome); bname = basename(bhome); (void) strcpy(pdir, dname); if ((stat(pdir, &stbuf) != 0) || !S_ISDIR(stbuf.st_mode)) { errmsg(M_OOPS, "access the parent directory", strerror(errno)); return (EX_HOMEDIR); } if ((strcmp(stbuf.st_fstype, MNTTYPE_ZFS) == 0) && (flags & MANAGE_ZFS)) { if (g_zfs == NULL) g_zfs = libzfs_init(); if (g_zfs == NULL) { errmsg(M_OOPS, "libzfs_init failure", strerror(errno)); return (EX_HOMEDIR); } if ((dataset = get_mnt_special(pdir, stbuf.st_fstype)) != NULL) { char nm[ZFS_MAX_DATASET_NAME_LEN]; zfs_handle_t *zhp; (void) snprintf(nm, sizeof (nm), "%s/%s", dataset, bname); if ((zfs_create(g_zfs, nm, ZFS_TYPE_FILESYSTEM, NULL) != 0) || ((zhp = zfs_open(g_zfs, nm, ZFS_TYPE_FILESYSTEM)) == NULL)) { errmsg(M_OOPS, "create the home directory", libzfs_error_description(g_zfs)); libzfs_fini(g_zfs); g_zfs = NULL; return (EX_HOMEDIR); } if (zfs_mount(zhp, NULL, 0) != 0) { errmsg(M_OOPS, "mount the home directory", libzfs_error_description(g_zfs)); (void) zfs_destroy(zhp, B_FALSE); zfs_close(zhp); libzfs_fini(g_zfs); g_zfs = NULL; return (EX_HOMEDIR); } zfs_close(zhp); if (chmod(homedir, S_IRWXU|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH) != 0) { errmsg(M_OOPS, "change permissions of home directory", strerror(errno)); libzfs_fini(g_zfs); g_zfs = NULL; return (EX_HOMEDIR); } created_fs = 1; } else { errmsg(M_NO_ZFS_MOUNTPOINT, pdir); } } if (!created_fs) { if (mkdir(homedir, S_IRWXU|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH) != 0) { errmsg(M_OOPS, "create the home directory", strerror(errno)); if (g_zfs != NULL) { libzfs_fini(g_zfs); g_zfs = NULL; } return (EX_HOMEDIR); } } if (chown(homedir, uid, gid) != 0) { errmsg(M_OOPS, "change ownership of home directory", strerror(errno)); if (g_zfs != NULL) { libzfs_fini(g_zfs); g_zfs = NULL; } return (EX_HOMEDIR); } if (skeldir != NULL) { /* copy the skel_dir into the home directory */ (void) sprintf(cmdbuf, "cd %s && find . -print | cpio -pd %s", skeldir, homedir); if (system(cmdbuf) != 0) { errmsg(M_OOPS, "copy skeleton directory into home " "directory", strerror(errno)); (void) rm_homedir(homedir, flags); if (g_zfs != NULL) { libzfs_fini(g_zfs); g_zfs = NULL; } return (EX_HOMEDIR); } /* make sure contents in the home dirctory have correct owner */ (void) sprintf(cmdbuf, "cd %s && find . -exec chown %ld:%ld {} \\;", homedir, uid, gid); if (system(cmdbuf) != 0) { errmsg(M_OOPS, "change owner and group of files home directory", strerror(errno)); (void) rm_homedir(homedir, flags); if (g_zfs != NULL) { libzfs_fini(g_zfs); g_zfs = NULL; } return (EX_HOMEDIR); } } if (g_zfs != NULL) { libzfs_fini(g_zfs); g_zfs = NULL; } return (EX_SUCCESS); }
static int lzfs_xattr_security_set(struct dentry *dentry, const char *name, const void *value, size_t size, int flags, int type) #endif { vnode_t *vp; vnode_t *dvp; vnode_t *xvp; vattr_t *vap; int err = 0; const struct cred *cred = get_current_cred(); struct iovec iov = { .iov_base = (void *) value, .iov_len = size, }; char *xattr_name = NULL; uio_t uio = { .uio_iov = &iov, .uio_resid = size, .uio_iovcnt = 1, .uio_loffset = (offset_t)0, .uio_limit = MAXOFFSET_T, .uio_segflg = UIO_SYSSPACE, }; #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,33) dvp = LZFS_ITOV(inode); #elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,33) dvp = LZFS_ITOV(dentry->d_inode); #endif err = zfs_lookup(dvp, NULL, &vp, NULL, LOOKUP_XATTR | CREATE_XATTR_DIR, NULL, (struct cred *) cred, NULL, NULL, NULL); if(err) { return -err; } if(!value) { err =zfs_remove(vp, (char *) name, (struct cred *)cred, NULL, 0); return -err; } vap = kmalloc(sizeof(vattr_t), GFP_KERNEL); ASSERT(vap != NULL); memset(vap, 0, sizeof(vap)); vap->va_type = VREG; vap->va_mode = 0644; vap->va_mask = AT_TYPE|AT_MODE; vap->va_uid = current_fsuid(); vap->va_gid = current_fsgid(); xattr_name = kzalloc(strlen(name) + 10, GFP_KERNEL); xattr_name = strncpy(xattr_name, "security.", 9); xattr_name = strncat(xattr_name, name, strlen(name)); err = zfs_create(vp, xattr_name, vap, 0, 0644, &xvp, (struct cred *)cred, 0, NULL, NULL); kfree(vap); kfree(xattr_name); if(err) { return -err; } err = zfs_write(xvp, &uio, 0, (cred_t *)cred, NULL); put_cred(cred); if(err) { return -err; } return -err; } #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,33) static size_t lzfs_xattr_security_list(struct inode *inode, char *list, size_t list_size, const char *name, size_t name_len) #elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,33) static size_t lzfs_xattr_security_list(struct dentry *dentry, char *list, size_t list_size, const char *name, size_t name_len, int type) #endif { const size_t total_len = name_len + 1; if (list && total_len <= list_size) { memcpy(list, name, name_len); list[name_len] = '\0'; } return total_len; } int lzfs_init_security(struct dentry *dentry, struct inode *dir) { int err; size_t len; void *value; char *name; err = security_inode_init_security(dentry->d_inode, dir, &name, &value, &len); if (err) { if (err == -EOPNOTSUPP) return 0; return err; } #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,33) err = lzfs_xattr_security_set(dentry->d_inode, name, value, len, 0); #elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,33) err = lzfs_xattr_security_set(dentry, name, value, len, 0, 0); #endif kfree(name); kfree(value); return err; } struct xattr_handler lzfs_xattr_security_handler = { .prefix = XATTR_SECURITY_PREFIX, .list = lzfs_xattr_security_list, .get = lzfs_xattr_security_get, .set = lzfs_xattr_security_set, };