703 lines
19 KiB
C
703 lines
19 KiB
C
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/*-
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* Copyright (c) 2003-2009 Tim Kientzle
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* Copyright (c) 2010-2012 Michihiro NAKAJIMA
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* Copyright (c) 2017 Martin Matuska
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "archive_platform.h"
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#if ARCHIVE_ACL_FREEBSD
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#ifdef HAVE_ERRNO_H
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#include <errno.h>
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#endif
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#ifdef HAVE_FCNTL_H
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#include <fcntl.h>
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#endif
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#ifdef HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif
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#ifdef HAVE_SYS_ACL_H
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#define _ACL_PRIVATE /* For debugging */
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#include <sys/acl.h>
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#endif
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#include "archive_entry.h"
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#include "archive_private.h"
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#include "archive_read_disk_private.h"
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#include "archive_write_disk_private.h"
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typedef struct {
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const int a_perm; /* Libarchive permission or flag */
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const int p_perm; /* Platform permission or flag */
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} acl_perm_map_t;
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static const acl_perm_map_t acl_posix_perm_map[] = {
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{ARCHIVE_ENTRY_ACL_EXECUTE, ACL_EXECUTE},
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{ARCHIVE_ENTRY_ACL_WRITE, ACL_WRITE},
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{ARCHIVE_ENTRY_ACL_READ, ACL_READ},
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};
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static const int acl_posix_perm_map_size =
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(int)(sizeof(acl_posix_perm_map)/sizeof(acl_posix_perm_map[0]));
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#if ARCHIVE_ACL_FREEBSD_NFS4
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static const acl_perm_map_t acl_nfs4_perm_map[] = {
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{ARCHIVE_ENTRY_ACL_EXECUTE, ACL_EXECUTE},
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{ARCHIVE_ENTRY_ACL_READ_DATA, ACL_READ_DATA},
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{ARCHIVE_ENTRY_ACL_LIST_DIRECTORY, ACL_LIST_DIRECTORY},
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{ARCHIVE_ENTRY_ACL_WRITE_DATA, ACL_WRITE_DATA},
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{ARCHIVE_ENTRY_ACL_ADD_FILE, ACL_ADD_FILE},
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{ARCHIVE_ENTRY_ACL_APPEND_DATA, ACL_APPEND_DATA},
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{ARCHIVE_ENTRY_ACL_ADD_SUBDIRECTORY, ACL_ADD_SUBDIRECTORY},
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{ARCHIVE_ENTRY_ACL_READ_NAMED_ATTRS, ACL_READ_NAMED_ATTRS},
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{ARCHIVE_ENTRY_ACL_WRITE_NAMED_ATTRS, ACL_WRITE_NAMED_ATTRS},
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{ARCHIVE_ENTRY_ACL_DELETE_CHILD, ACL_DELETE_CHILD},
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{ARCHIVE_ENTRY_ACL_READ_ATTRIBUTES, ACL_READ_ATTRIBUTES},
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{ARCHIVE_ENTRY_ACL_WRITE_ATTRIBUTES, ACL_WRITE_ATTRIBUTES},
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{ARCHIVE_ENTRY_ACL_DELETE, ACL_DELETE},
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{ARCHIVE_ENTRY_ACL_READ_ACL, ACL_READ_ACL},
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{ARCHIVE_ENTRY_ACL_WRITE_ACL, ACL_WRITE_ACL},
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{ARCHIVE_ENTRY_ACL_WRITE_OWNER, ACL_WRITE_OWNER},
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{ARCHIVE_ENTRY_ACL_SYNCHRONIZE, ACL_SYNCHRONIZE}
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};
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static const int acl_nfs4_perm_map_size =
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(int)(sizeof(acl_nfs4_perm_map)/sizeof(acl_nfs4_perm_map[0]));
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static const acl_perm_map_t acl_nfs4_flag_map[] = {
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{ARCHIVE_ENTRY_ACL_ENTRY_FILE_INHERIT, ACL_ENTRY_FILE_INHERIT},
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{ARCHIVE_ENTRY_ACL_ENTRY_DIRECTORY_INHERIT, ACL_ENTRY_DIRECTORY_INHERIT},
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{ARCHIVE_ENTRY_ACL_ENTRY_NO_PROPAGATE_INHERIT, ACL_ENTRY_NO_PROPAGATE_INHERIT},
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{ARCHIVE_ENTRY_ACL_ENTRY_INHERIT_ONLY, ACL_ENTRY_INHERIT_ONLY},
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{ARCHIVE_ENTRY_ACL_ENTRY_SUCCESSFUL_ACCESS, ACL_ENTRY_SUCCESSFUL_ACCESS},
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{ARCHIVE_ENTRY_ACL_ENTRY_FAILED_ACCESS, ACL_ENTRY_FAILED_ACCESS},
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#ifdef ACL_ENTRY_INHERITED
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{ARCHIVE_ENTRY_ACL_ENTRY_INHERITED, ACL_ENTRY_INHERITED}
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#endif
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};
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static const int acl_nfs4_flag_map_size =
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(int)(sizeof(acl_nfs4_flag_map)/sizeof(acl_nfs4_flag_map[0]));
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#endif /* ARCHIVE_ACL_FREEBSD_NFS4 */
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static int
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translate_acl(struct archive_read_disk *a,
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struct archive_entry *entry, acl_t acl, int default_entry_acl_type)
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{
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#if ARCHIVE_ACL_FREEBSD_NFS4
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int brand;
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acl_flagset_t acl_flagset;
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acl_entry_type_t acl_type;
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#endif
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acl_tag_t acl_tag;
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acl_entry_t acl_entry;
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acl_permset_t acl_permset;
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int i, entry_acl_type, perm_map_size;
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const acl_perm_map_t *perm_map;
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int r, s, ae_id, ae_tag, ae_perm;
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void *q;
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const char *ae_name;
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#if ARCHIVE_ACL_FREEBSD_NFS4
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// FreeBSD "brands" ACLs as POSIX.1e or NFSv4
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// Make sure the "brand" on this ACL is consistent
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// with the default_entry_acl_type bits provided.
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if (acl_get_brand_np(acl, &brand) != 0) {
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archive_set_error(&a->archive, errno,
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"Failed to read ACL brand");
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return (ARCHIVE_WARN);
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}
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switch (brand) {
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case ACL_BRAND_POSIX:
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switch (default_entry_acl_type) {
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case ARCHIVE_ENTRY_ACL_TYPE_ACCESS:
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case ARCHIVE_ENTRY_ACL_TYPE_DEFAULT:
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break;
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default:
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archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
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"Invalid ACL entry type for POSIX.1e ACL");
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return (ARCHIVE_WARN);
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}
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break;
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case ACL_BRAND_NFS4:
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if (default_entry_acl_type & ~ARCHIVE_ENTRY_ACL_TYPE_NFS4) {
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archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
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"Invalid ACL entry type for NFSv4 ACL");
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return (ARCHIVE_WARN);
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}
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break;
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default:
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archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
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"Unknown ACL brand");
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return (ARCHIVE_WARN);
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}
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#endif
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s = acl_get_entry(acl, ACL_FIRST_ENTRY, &acl_entry);
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if (s == -1) {
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archive_set_error(&a->archive, errno,
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"Failed to get first ACL entry");
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return (ARCHIVE_WARN);
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}
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while (s == 1) {
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ae_id = -1;
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ae_name = NULL;
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ae_perm = 0;
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if (acl_get_tag_type(acl_entry, &acl_tag) != 0) {
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archive_set_error(&a->archive, errno,
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"Failed to get ACL tag type");
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return (ARCHIVE_WARN);
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}
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switch (acl_tag) {
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case ACL_USER:
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q = acl_get_qualifier(acl_entry);
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if (q != NULL) {
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ae_id = (int)*(uid_t *)q;
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acl_free(q);
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ae_name = archive_read_disk_uname(&a->archive,
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ae_id);
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}
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ae_tag = ARCHIVE_ENTRY_ACL_USER;
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break;
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case ACL_GROUP:
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q = acl_get_qualifier(acl_entry);
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if (q != NULL) {
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ae_id = (int)*(gid_t *)q;
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acl_free(q);
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ae_name = archive_read_disk_gname(&a->archive,
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ae_id);
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}
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ae_tag = ARCHIVE_ENTRY_ACL_GROUP;
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break;
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case ACL_MASK:
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ae_tag = ARCHIVE_ENTRY_ACL_MASK;
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break;
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case ACL_USER_OBJ:
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ae_tag = ARCHIVE_ENTRY_ACL_USER_OBJ;
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break;
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case ACL_GROUP_OBJ:
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ae_tag = ARCHIVE_ENTRY_ACL_GROUP_OBJ;
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break;
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case ACL_OTHER:
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ae_tag = ARCHIVE_ENTRY_ACL_OTHER;
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break;
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#if ARCHIVE_ACL_FREEBSD_NFS4
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case ACL_EVERYONE:
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ae_tag = ARCHIVE_ENTRY_ACL_EVERYONE;
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break;
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#endif
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default:
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/* Skip types that libarchive can't support. */
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s = acl_get_entry(acl, ACL_NEXT_ENTRY, &acl_entry);
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continue;
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}
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// XXX acl_type maps to allow/deny/audit/YYYY bits
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entry_acl_type = default_entry_acl_type;
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#if ARCHIVE_ACL_FREEBSD_NFS4
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if (default_entry_acl_type & ARCHIVE_ENTRY_ACL_TYPE_NFS4) {
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/*
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* acl_get_entry_type_np() fails with non-NFSv4 ACLs
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*/
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if (acl_get_entry_type_np(acl_entry, &acl_type) != 0) {
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archive_set_error(&a->archive, errno, "Failed "
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"to get ACL type from a NFSv4 ACL entry");
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return (ARCHIVE_WARN);
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}
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switch (acl_type) {
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case ACL_ENTRY_TYPE_ALLOW:
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entry_acl_type = ARCHIVE_ENTRY_ACL_TYPE_ALLOW;
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break;
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case ACL_ENTRY_TYPE_DENY:
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entry_acl_type = ARCHIVE_ENTRY_ACL_TYPE_DENY;
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break;
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case ACL_ENTRY_TYPE_AUDIT:
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entry_acl_type = ARCHIVE_ENTRY_ACL_TYPE_AUDIT;
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break;
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case ACL_ENTRY_TYPE_ALARM:
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entry_acl_type = ARCHIVE_ENTRY_ACL_TYPE_ALARM;
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break;
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default:
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archive_set_error(&a->archive, errno,
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"Invalid NFSv4 ACL entry type");
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return (ARCHIVE_WARN);
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}
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/*
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* Libarchive stores "flag" (NFSv4 inheritance bits)
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* in the ae_perm bitmap.
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*
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* acl_get_flagset_np() fails with non-NFSv4 ACLs
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*/
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if (acl_get_flagset_np(acl_entry, &acl_flagset) != 0) {
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archive_set_error(&a->archive, errno,
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"Failed to get flagset from a NFSv4 "
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"ACL entry");
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return (ARCHIVE_WARN);
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}
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for (i = 0; i < acl_nfs4_flag_map_size; ++i) {
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r = acl_get_flag_np(acl_flagset,
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acl_nfs4_flag_map[i].p_perm);
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if (r == -1) {
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archive_set_error(&a->archive, errno,
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"Failed to check flag in a NFSv4 "
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"ACL flagset");
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return (ARCHIVE_WARN);
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} else if (r)
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ae_perm |= acl_nfs4_flag_map[i].a_perm;
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}
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}
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#endif
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if (acl_get_permset(acl_entry, &acl_permset) != 0) {
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archive_set_error(&a->archive, errno,
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"Failed to get ACL permission set");
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return (ARCHIVE_WARN);
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}
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#if ARCHIVE_ACL_FREEBSD_NFS4
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if (default_entry_acl_type & ARCHIVE_ENTRY_ACL_TYPE_NFS4) {
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perm_map_size = acl_nfs4_perm_map_size;
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perm_map = acl_nfs4_perm_map;
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} else {
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#endif
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perm_map_size = acl_posix_perm_map_size;
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perm_map = acl_posix_perm_map;
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#if ARCHIVE_ACL_FREEBSD_NFS4
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}
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#endif
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for (i = 0; i < perm_map_size; ++i) {
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r = acl_get_perm_np(acl_permset, perm_map[i].p_perm);
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if (r == -1) {
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archive_set_error(&a->archive, errno,
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"Failed to check permission in an ACL "
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"permission set");
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return (ARCHIVE_WARN);
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} else if (r)
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ae_perm |= perm_map[i].a_perm;
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}
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archive_entry_acl_add_entry(entry, entry_acl_type,
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ae_perm, ae_tag,
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ae_id, ae_name);
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s = acl_get_entry(acl, ACL_NEXT_ENTRY, &acl_entry);
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if (s == -1) {
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archive_set_error(&a->archive, errno,
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"Failed to get next ACL entry");
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return (ARCHIVE_WARN);
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}
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}
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return (ARCHIVE_OK);
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}
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static int
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set_acl(struct archive *a, int fd, const char *name,
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struct archive_acl *abstract_acl,
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int ae_requested_type, const char *tname)
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{
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int acl_type = 0;
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acl_t acl;
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acl_entry_t acl_entry;
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acl_permset_t acl_permset;
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#if ARCHIVE_ACL_FREEBSD_NFS4
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acl_flagset_t acl_flagset;
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int r;
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#endif
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int ret;
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int ae_type, ae_permset, ae_tag, ae_id;
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int perm_map_size;
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const acl_perm_map_t *perm_map;
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uid_t ae_uid;
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gid_t ae_gid;
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|
|
const char *ae_name;
|
||
|
|
int entries;
|
||
|
|
int i;
|
||
|
|
|
||
|
|
ret = ARCHIVE_OK;
|
||
|
|
entries = archive_acl_reset(abstract_acl, ae_requested_type);
|
||
|
|
if (entries == 0)
|
||
|
|
return (ARCHIVE_OK);
|
||
|
|
|
||
|
|
|
||
|
|
switch (ae_requested_type) {
|
||
|
|
case ARCHIVE_ENTRY_ACL_TYPE_ACCESS:
|
||
|
|
acl_type = ACL_TYPE_ACCESS;
|
||
|
|
break;
|
||
|
|
case ARCHIVE_ENTRY_ACL_TYPE_DEFAULT:
|
||
|
|
acl_type = ACL_TYPE_DEFAULT;
|
||
|
|
break;
|
||
|
|
#if ARCHIVE_ACL_FREEBSD_NFS4
|
||
|
|
case ARCHIVE_ENTRY_ACL_TYPE_NFS4:
|
||
|
|
acl_type = ACL_TYPE_NFS4;
|
||
|
|
break;
|
||
|
|
#endif
|
||
|
|
default:
|
||
|
|
errno = ENOENT;
|
||
|
|
archive_set_error(a, errno, "Unsupported ACL type");
|
||
|
|
return (ARCHIVE_FAILED);
|
||
|
|
}
|
||
|
|
|
||
|
|
acl = acl_init(entries);
|
||
|
|
if (acl == (acl_t)NULL) {
|
||
|
|
archive_set_error(a, errno,
|
||
|
|
"Failed to initialize ACL working storage");
|
||
|
|
return (ARCHIVE_FAILED);
|
||
|
|
}
|
||
|
|
|
||
|
|
while (archive_acl_next(a, abstract_acl, ae_requested_type, &ae_type,
|
||
|
|
&ae_permset, &ae_tag, &ae_id, &ae_name) == ARCHIVE_OK) {
|
||
|
|
if (acl_create_entry(&acl, &acl_entry) != 0) {
|
||
|
|
archive_set_error(a, errno,
|
||
|
|
"Failed to create a new ACL entry");
|
||
|
|
ret = ARCHIVE_FAILED;
|
||
|
|
goto exit_free;
|
||
|
|
}
|
||
|
|
switch (ae_tag) {
|
||
|
|
case ARCHIVE_ENTRY_ACL_USER:
|
||
|
|
ae_uid = archive_write_disk_uid(a, ae_name, ae_id);
|
||
|
|
acl_set_tag_type(acl_entry, ACL_USER);
|
||
|
|
acl_set_qualifier(acl_entry, &ae_uid);
|
||
|
|
break;
|
||
|
|
case ARCHIVE_ENTRY_ACL_GROUP:
|
||
|
|
ae_gid = archive_write_disk_gid(a, ae_name, ae_id);
|
||
|
|
acl_set_tag_type(acl_entry, ACL_GROUP);
|
||
|
|
acl_set_qualifier(acl_entry, &ae_gid);
|
||
|
|
break;
|
||
|
|
case ARCHIVE_ENTRY_ACL_USER_OBJ:
|
||
|
|
acl_set_tag_type(acl_entry, ACL_USER_OBJ);
|
||
|
|
break;
|
||
|
|
case ARCHIVE_ENTRY_ACL_GROUP_OBJ:
|
||
|
|
acl_set_tag_type(acl_entry, ACL_GROUP_OBJ);
|
||
|
|
break;
|
||
|
|
case ARCHIVE_ENTRY_ACL_MASK:
|
||
|
|
acl_set_tag_type(acl_entry, ACL_MASK);
|
||
|
|
break;
|
||
|
|
case ARCHIVE_ENTRY_ACL_OTHER:
|
||
|
|
acl_set_tag_type(acl_entry, ACL_OTHER);
|
||
|
|
break;
|
||
|
|
#if ARCHIVE_ACL_FREEBSD_NFS4
|
||
|
|
case ARCHIVE_ENTRY_ACL_EVERYONE:
|
||
|
|
acl_set_tag_type(acl_entry, ACL_EVERYONE);
|
||
|
|
break;
|
||
|
|
#endif
|
||
|
|
default:
|
||
|
|
archive_set_error(a, ARCHIVE_ERRNO_MISC,
|
||
|
|
"Unsupported ACL tag");
|
||
|
|
ret = ARCHIVE_FAILED;
|
||
|
|
goto exit_free;
|
||
|
|
}
|
||
|
|
|
||
|
|
#if ARCHIVE_ACL_FREEBSD_NFS4
|
||
|
|
r = 0;
|
||
|
|
switch (ae_type) {
|
||
|
|
case ARCHIVE_ENTRY_ACL_TYPE_ALLOW:
|
||
|
|
r = acl_set_entry_type_np(acl_entry,
|
||
|
|
ACL_ENTRY_TYPE_ALLOW);
|
||
|
|
break;
|
||
|
|
case ARCHIVE_ENTRY_ACL_TYPE_DENY:
|
||
|
|
r = acl_set_entry_type_np(acl_entry,
|
||
|
|
ACL_ENTRY_TYPE_DENY);
|
||
|
|
break;
|
||
|
|
case ARCHIVE_ENTRY_ACL_TYPE_AUDIT:
|
||
|
|
r = acl_set_entry_type_np(acl_entry,
|
||
|
|
ACL_ENTRY_TYPE_AUDIT);
|
||
|
|
break;
|
||
|
|
case ARCHIVE_ENTRY_ACL_TYPE_ALARM:
|
||
|
|
r = acl_set_entry_type_np(acl_entry,
|
||
|
|
ACL_ENTRY_TYPE_ALARM);
|
||
|
|
break;
|
||
|
|
case ARCHIVE_ENTRY_ACL_TYPE_ACCESS:
|
||
|
|
case ARCHIVE_ENTRY_ACL_TYPE_DEFAULT:
|
||
|
|
// These don't translate directly into the system ACL.
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
archive_set_error(a, ARCHIVE_ERRNO_MISC,
|
||
|
|
"Unsupported ACL entry type");
|
||
|
|
ret = ARCHIVE_FAILED;
|
||
|
|
goto exit_free;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (r != 0) {
|
||
|
|
archive_set_error(a, errno,
|
||
|
|
"Failed to set ACL entry type");
|
||
|
|
ret = ARCHIVE_FAILED;
|
||
|
|
goto exit_free;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
if (acl_get_permset(acl_entry, &acl_permset) != 0) {
|
||
|
|
archive_set_error(a, errno,
|
||
|
|
"Failed to get ACL permission set");
|
||
|
|
ret = ARCHIVE_FAILED;
|
||
|
|
goto exit_free;
|
||
|
|
}
|
||
|
|
if (acl_clear_perms(acl_permset) != 0) {
|
||
|
|
archive_set_error(a, errno,
|
||
|
|
"Failed to clear ACL permissions");
|
||
|
|
ret = ARCHIVE_FAILED;
|
||
|
|
goto exit_free;
|
||
|
|
}
|
||
|
|
#if ARCHIVE_ACL_FREEBSD_NFS4
|
||
|
|
if (ae_requested_type == ARCHIVE_ENTRY_ACL_TYPE_NFS4) {
|
||
|
|
perm_map_size = acl_nfs4_perm_map_size;
|
||
|
|
perm_map = acl_nfs4_perm_map;
|
||
|
|
} else {
|
||
|
|
#endif
|
||
|
|
perm_map_size = acl_posix_perm_map_size;
|
||
|
|
perm_map = acl_posix_perm_map;
|
||
|
|
#if ARCHIVE_ACL_FREEBSD_NFS4
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
for (i = 0; i < perm_map_size; ++i) {
|
||
|
|
if (ae_permset & perm_map[i].a_perm) {
|
||
|
|
if (acl_add_perm(acl_permset,
|
||
|
|
perm_map[i].p_perm) != 0) {
|
||
|
|
archive_set_error(a, errno,
|
||
|
|
"Failed to add ACL permission");
|
||
|
|
ret = ARCHIVE_FAILED;
|
||
|
|
goto exit_free;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#if ARCHIVE_ACL_FREEBSD_NFS4
|
||
|
|
if (ae_requested_type == ARCHIVE_ENTRY_ACL_TYPE_NFS4) {
|
||
|
|
/*
|
||
|
|
* acl_get_flagset_np() fails with non-NFSv4 ACLs
|
||
|
|
*/
|
||
|
|
if (acl_get_flagset_np(acl_entry, &acl_flagset) != 0) {
|
||
|
|
archive_set_error(a, errno,
|
||
|
|
"Failed to get flagset from an NFSv4 "
|
||
|
|
"ACL entry");
|
||
|
|
ret = ARCHIVE_FAILED;
|
||
|
|
goto exit_free;
|
||
|
|
}
|
||
|
|
if (acl_clear_flags_np(acl_flagset) != 0) {
|
||
|
|
archive_set_error(a, errno,
|
||
|
|
"Failed to clear flags from an NFSv4 "
|
||
|
|
"ACL flagset");
|
||
|
|
ret = ARCHIVE_FAILED;
|
||
|
|
goto exit_free;
|
||
|
|
}
|
||
|
|
for (i = 0; i < acl_nfs4_flag_map_size; ++i) {
|
||
|
|
if (ae_permset & acl_nfs4_flag_map[i].a_perm) {
|
||
|
|
if (acl_add_flag_np(acl_flagset,
|
||
|
|
acl_nfs4_flag_map[i].p_perm) != 0) {
|
||
|
|
archive_set_error(a, errno,
|
||
|
|
"Failed to add flag to "
|
||
|
|
"NFSv4 ACL flagset");
|
||
|
|
ret = ARCHIVE_FAILED;
|
||
|
|
goto exit_free;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Try restoring the ACL through 'fd' if we can. */
|
||
|
|
if (fd >= 0) {
|
||
|
|
if (acl_set_fd_np(fd, acl, acl_type) == 0)
|
||
|
|
ret = ARCHIVE_OK;
|
||
|
|
else {
|
||
|
|
if (errno == EOPNOTSUPP) {
|
||
|
|
/* Filesystem doesn't support ACLs */
|
||
|
|
ret = ARCHIVE_OK;
|
||
|
|
} else {
|
||
|
|
archive_set_error(a, errno,
|
||
|
|
"Failed to set acl on fd: %s", tname);
|
||
|
|
ret = ARCHIVE_WARN;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
#if HAVE_ACL_SET_LINK_NP
|
||
|
|
else if (acl_set_link_np(name, acl_type, acl) != 0)
|
||
|
|
#else
|
||
|
|
/* FreeBSD older than 8.0 */
|
||
|
|
else if (acl_set_file(name, acl_type, acl) != 0)
|
||
|
|
#endif
|
||
|
|
{
|
||
|
|
if (errno == EOPNOTSUPP) {
|
||
|
|
/* Filesystem doesn't support ACLs */
|
||
|
|
ret = ARCHIVE_OK;
|
||
|
|
} else {
|
||
|
|
archive_set_error(a, errno, "Failed to set acl: %s",
|
||
|
|
tname);
|
||
|
|
ret = ARCHIVE_WARN;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
exit_free:
|
||
|
|
acl_free(acl);
|
||
|
|
return (ret);
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
archive_read_disk_entry_setup_acls(struct archive_read_disk *a,
|
||
|
|
struct archive_entry *entry, int *fd)
|
||
|
|
{
|
||
|
|
const char *accpath;
|
||
|
|
acl_t acl;
|
||
|
|
int r;
|
||
|
|
|
||
|
|
accpath = NULL;
|
||
|
|
|
||
|
|
if (*fd < 0) {
|
||
|
|
accpath = archive_read_disk_entry_setup_path(a, entry, fd);
|
||
|
|
if (accpath == NULL)
|
||
|
|
return (ARCHIVE_WARN);
|
||
|
|
}
|
||
|
|
|
||
|
|
archive_entry_acl_clear(entry);
|
||
|
|
|
||
|
|
acl = NULL;
|
||
|
|
|
||
|
|
#if ARCHIVE_ACL_FREEBSD_NFS4
|
||
|
|
/* Try NFSv4 ACL first. */
|
||
|
|
if (*fd >= 0)
|
||
|
|
acl = acl_get_fd_np(*fd, ACL_TYPE_NFS4);
|
||
|
|
else if (!a->follow_symlinks)
|
||
|
|
acl = acl_get_link_np(accpath, ACL_TYPE_NFS4);
|
||
|
|
else
|
||
|
|
acl = acl_get_file(accpath, ACL_TYPE_NFS4);
|
||
|
|
|
||
|
|
/* Ignore "trivial" ACLs that just mirror the file mode. */
|
||
|
|
if (acl != NULL && acl_is_trivial_np(acl, &r) == 0 && r == 1) {
|
||
|
|
acl_free(acl);
|
||
|
|
acl = NULL;
|
||
|
|
return (ARCHIVE_OK);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (acl != NULL) {
|
||
|
|
r = translate_acl(a, entry, acl, ARCHIVE_ENTRY_ACL_TYPE_NFS4);
|
||
|
|
acl_free(acl);
|
||
|
|
acl = NULL;
|
||
|
|
|
||
|
|
if (r != ARCHIVE_OK) {
|
||
|
|
archive_set_error(&a->archive, errno,
|
||
|
|
"Couldn't translate NFSv4 ACLs");
|
||
|
|
}
|
||
|
|
|
||
|
|
return (r);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Retrieve access ACL from file. */
|
||
|
|
if (*fd >= 0)
|
||
|
|
acl = acl_get_fd_np(*fd, ACL_TYPE_ACCESS);
|
||
|
|
#if HAVE_ACL_GET_LINK_NP
|
||
|
|
else if (!a->follow_symlinks)
|
||
|
|
acl = acl_get_link_np(accpath, ACL_TYPE_ACCESS);
|
||
|
|
#else
|
||
|
|
else if ((!a->follow_symlinks)
|
||
|
|
&& (archive_entry_filetype(entry) == AE_IFLNK))
|
||
|
|
/* We can't get the ACL of a symlink, so we assume it can't
|
||
|
|
have one. */
|
||
|
|
acl = NULL;
|
||
|
|
#endif
|
||
|
|
else
|
||
|
|
acl = acl_get_file(accpath, ACL_TYPE_ACCESS);
|
||
|
|
|
||
|
|
#if HAVE_ACL_IS_TRIVIAL_NP
|
||
|
|
/* Ignore "trivial" ACLs that just mirror the file mode. */
|
||
|
|
if (acl != NULL && acl_is_trivial_np(acl, &r) == 0 && r == 1) {
|
||
|
|
acl_free(acl);
|
||
|
|
acl = NULL;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
if (acl != NULL) {
|
||
|
|
r = translate_acl(a, entry, acl, ARCHIVE_ENTRY_ACL_TYPE_ACCESS);
|
||
|
|
acl_free(acl);
|
||
|
|
acl = NULL;
|
||
|
|
|
||
|
|
if (r != ARCHIVE_OK) {
|
||
|
|
archive_set_error(&a->archive, errno,
|
||
|
|
"Couldn't translate access ACLs");
|
||
|
|
return (r);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Only directories can have default ACLs. */
|
||
|
|
if (S_ISDIR(archive_entry_mode(entry))) {
|
||
|
|
if (*fd >= 0)
|
||
|
|
acl = acl_get_fd_np(*fd, ACL_TYPE_DEFAULT);
|
||
|
|
else
|
||
|
|
acl = acl_get_file(accpath, ACL_TYPE_DEFAULT);
|
||
|
|
if (acl != NULL) {
|
||
|
|
r = translate_acl(a, entry, acl,
|
||
|
|
ARCHIVE_ENTRY_ACL_TYPE_DEFAULT);
|
||
|
|
acl_free(acl);
|
||
|
|
if (r != ARCHIVE_OK) {
|
||
|
|
archive_set_error(&a->archive, errno,
|
||
|
|
"Couldn't translate default ACLs");
|
||
|
|
return (r);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return (ARCHIVE_OK);
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
archive_write_disk_set_acls(struct archive *a, int fd, const char *name,
|
||
|
|
struct archive_acl *abstract_acl, __LA_MODE_T mode)
|
||
|
|
{
|
||
|
|
int ret = ARCHIVE_OK;
|
||
|
|
|
||
|
|
(void)mode; /* UNUSED */
|
||
|
|
|
||
|
|
if ((archive_acl_types(abstract_acl)
|
||
|
|
& ARCHIVE_ENTRY_ACL_TYPE_POSIX1E) != 0) {
|
||
|
|
if ((archive_acl_types(abstract_acl)
|
||
|
|
& ARCHIVE_ENTRY_ACL_TYPE_ACCESS) != 0) {
|
||
|
|
ret = set_acl(a, fd, name, abstract_acl,
|
||
|
|
ARCHIVE_ENTRY_ACL_TYPE_ACCESS, "access");
|
||
|
|
if (ret != ARCHIVE_OK)
|
||
|
|
return (ret);
|
||
|
|
}
|
||
|
|
if ((archive_acl_types(abstract_acl)
|
||
|
|
& ARCHIVE_ENTRY_ACL_TYPE_DEFAULT) != 0)
|
||
|
|
ret = set_acl(a, fd, name, abstract_acl,
|
||
|
|
ARCHIVE_ENTRY_ACL_TYPE_DEFAULT, "default");
|
||
|
|
|
||
|
|
/* Simultaneous POSIX.1e and NFSv4 is not supported */
|
||
|
|
return (ret);
|
||
|
|
}
|
||
|
|
#if ARCHIVE_ACL_FREEBSD_NFS4
|
||
|
|
else if ((archive_acl_types(abstract_acl) &
|
||
|
|
ARCHIVE_ENTRY_ACL_TYPE_NFS4) != 0) {
|
||
|
|
ret = set_acl(a, fd, name, abstract_acl,
|
||
|
|
ARCHIVE_ENTRY_ACL_TYPE_NFS4, "nfs4");
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
return (ret);
|
||
|
|
}
|
||
|
|
#endif /* ARCHIVE_ACL_FREEBSD */
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