| /*- |
| * Copyright (c) 2003-2010 Tim Kientzle |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer |
| * in this position and unchanged. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "archive_platform.h" |
| __FBSDID("$FreeBSD: head/lib/libarchive/archive_write_disk.c 201159 2009-12-29 05:35:40Z kientzle $"); |
| |
| #ifdef HAVE_SYS_TYPES_H |
| #include <sys/types.h> |
| #endif |
| #ifdef HAVE_SYS_ACL_H |
| #define _ACL_PRIVATE /* For debugging */ |
| #include <sys/acl.h> |
| #endif |
| #ifdef HAVE_ERRNO_H |
| #include <errno.h> |
| #endif |
| |
| #include "archive.h" |
| #include "archive_entry.h" |
| #include "archive_acl_private.h" |
| #include "archive_write_disk_private.h" |
| |
| #if !defined(HAVE_POSIX_ACL) || !defined(ACL_TYPE_NFS4) |
| /* Default empty function body to satisfy mainline code. */ |
| int |
| archive_write_disk_set_acls(struct archive *a, int fd, const char *name, |
| struct archive_acl *abstract_acl) |
| { |
| (void)a; /* UNUSED */ |
| (void)fd; /* UNUSED */ |
| (void)name; /* UNUSED */ |
| (void)abstract_acl; /* UNUSED */ |
| return (ARCHIVE_OK); |
| } |
| |
| #else |
| |
| static int set_acl(struct archive *, int fd, const char *, |
| struct archive_acl *, |
| acl_type_t, int archive_entry_acl_type, const char *tn); |
| |
| /* |
| * XXX TODO: What about ACL types other than ACCESS and DEFAULT? |
| */ |
| int |
| archive_write_disk_set_acls(struct archive *a, int fd, const char *name, |
| struct archive_acl *abstract_acl) |
| { |
| int ret; |
| |
| if (archive_acl_count(abstract_acl, ARCHIVE_ENTRY_ACL_TYPE_POSIX1E) > 0) { |
| ret = set_acl(a, fd, name, abstract_acl, ACL_TYPE_ACCESS, |
| ARCHIVE_ENTRY_ACL_TYPE_ACCESS, "access"); |
| if (ret != ARCHIVE_OK) |
| return (ret); |
| ret = set_acl(a, fd, name, abstract_acl, ACL_TYPE_DEFAULT, |
| ARCHIVE_ENTRY_ACL_TYPE_DEFAULT, "default"); |
| return (ret); |
| } else if (archive_acl_count(abstract_acl, ARCHIVE_ENTRY_ACL_TYPE_NFS4) > 0) { |
| ret = set_acl(a, fd, name, abstract_acl, ACL_TYPE_NFS4, |
| ARCHIVE_ENTRY_ACL_TYPE_NFS4, "nfs4"); |
| return (ret); |
| } else |
| return ARCHIVE_OK; |
| } |
| |
| static struct { |
| int archive_perm; |
| int platform_perm; |
| } acl_perm_map[] = { |
| {ARCHIVE_ENTRY_ACL_EXECUTE, ACL_EXECUTE}, |
| {ARCHIVE_ENTRY_ACL_WRITE, ACL_WRITE}, |
| {ARCHIVE_ENTRY_ACL_READ, ACL_READ}, |
| {ARCHIVE_ENTRY_ACL_READ_DATA, ACL_READ_DATA}, |
| {ARCHIVE_ENTRY_ACL_LIST_DIRECTORY, ACL_LIST_DIRECTORY}, |
| {ARCHIVE_ENTRY_ACL_WRITE_DATA, ACL_WRITE_DATA}, |
| {ARCHIVE_ENTRY_ACL_ADD_FILE, ACL_ADD_FILE}, |
| {ARCHIVE_ENTRY_ACL_APPEND_DATA, ACL_APPEND_DATA}, |
| {ARCHIVE_ENTRY_ACL_ADD_SUBDIRECTORY, ACL_ADD_SUBDIRECTORY}, |
| {ARCHIVE_ENTRY_ACL_READ_NAMED_ATTRS, ACL_READ_NAMED_ATTRS}, |
| {ARCHIVE_ENTRY_ACL_WRITE_NAMED_ATTRS, ACL_WRITE_NAMED_ATTRS}, |
| {ARCHIVE_ENTRY_ACL_DELETE_CHILD, ACL_DELETE_CHILD}, |
| {ARCHIVE_ENTRY_ACL_READ_ATTRIBUTES, ACL_READ_ATTRIBUTES}, |
| {ARCHIVE_ENTRY_ACL_WRITE_ATTRIBUTES, ACL_WRITE_ATTRIBUTES}, |
| {ARCHIVE_ENTRY_ACL_DELETE, ACL_DELETE}, |
| {ARCHIVE_ENTRY_ACL_READ_ACL, ACL_READ_ACL}, |
| {ARCHIVE_ENTRY_ACL_WRITE_ACL, ACL_WRITE_ACL}, |
| {ARCHIVE_ENTRY_ACL_WRITE_OWNER, ACL_WRITE_OWNER}, |
| {ARCHIVE_ENTRY_ACL_SYNCHRONIZE, ACL_SYNCHRONIZE} |
| }; |
| |
| static struct { |
| int archive_inherit; |
| int platform_inherit; |
| } acl_inherit_map[] = { |
| {ARCHIVE_ENTRY_ACL_ENTRY_FILE_INHERIT, ACL_ENTRY_FILE_INHERIT}, |
| {ARCHIVE_ENTRY_ACL_ENTRY_DIRECTORY_INHERIT, ACL_ENTRY_DIRECTORY_INHERIT}, |
| {ARCHIVE_ENTRY_ACL_ENTRY_NO_PROPAGATE_INHERIT, ACL_ENTRY_NO_PROPAGATE_INHERIT}, |
| {ARCHIVE_ENTRY_ACL_ENTRY_INHERIT_ONLY, ACL_ENTRY_INHERIT_ONLY} |
| }; |
| |
| static int |
| set_acl(struct archive *a, int fd, const char *name, |
| struct archive_acl *abstract_acl, |
| acl_type_t acl_type, int ae_requested_type, const char *tname) |
| { |
| acl_t acl; |
| acl_entry_t acl_entry; |
| acl_permset_t acl_permset; |
| acl_flagset_t acl_flagset; |
| int ret; |
| int ae_type, ae_permset, ae_tag, ae_id; |
| uid_t ae_uid; |
| gid_t ae_gid; |
| 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); |
| acl = acl_init(entries); |
| while (archive_acl_next(a, abstract_acl, ae_requested_type, &ae_type, |
| &ae_permset, &ae_tag, &ae_id, &ae_name) == ARCHIVE_OK) { |
| acl_create_entry(&acl, &acl_entry); |
| |
| switch (ae_tag) { |
| case ARCHIVE_ENTRY_ACL_USER: |
| acl_set_tag_type(acl_entry, ACL_USER); |
| ae_uid = archive_write_disk_uid(a, ae_name, ae_id); |
| acl_set_qualifier(acl_entry, &ae_uid); |
| break; |
| case ARCHIVE_ENTRY_ACL_GROUP: |
| acl_set_tag_type(acl_entry, ACL_GROUP); |
| ae_gid = archive_write_disk_gid(a, ae_name, ae_id); |
| 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; |
| case ARCHIVE_ENTRY_ACL_EVERYONE: |
| acl_set_tag_type(acl_entry, ACL_EVERYONE); |
| break; |
| default: |
| /* XXX */ |
| break; |
| } |
| |
| switch (ae_type) { |
| case ARCHIVE_ENTRY_ACL_TYPE_ALLOW: |
| acl_set_entry_type_np(acl_entry, ACL_ENTRY_TYPE_ALLOW); |
| break; |
| case ARCHIVE_ENTRY_ACL_TYPE_DENY: |
| acl_set_entry_type_np(acl_entry, ACL_ENTRY_TYPE_DENY); |
| break; |
| case ARCHIVE_ENTRY_ACL_TYPE_AUDIT: |
| acl_set_entry_type_np(acl_entry, ACL_ENTRY_TYPE_AUDIT); |
| break; |
| case ARCHIVE_ENTRY_ACL_TYPE_ALARM: |
| 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: |
| // XXX error handling here. |
| break; |
| } |
| |
| acl_get_permset(acl_entry, &acl_permset); |
| acl_clear_perms(acl_permset); |
| |
| for (i = 0; i < (int)(sizeof(acl_perm_map) / sizeof(acl_perm_map[0])); ++i) { |
| if (ae_permset & acl_perm_map[i].archive_perm) |
| acl_add_perm(acl_permset, |
| acl_perm_map[i].platform_perm); |
| } |
| |
| acl_get_flagset_np(acl_entry, &acl_flagset); |
| acl_clear_flags_np(acl_flagset); |
| for (i = 0; i < (int)(sizeof(acl_inherit_map) / sizeof(acl_inherit_map[0])); ++i) { |
| if (ae_permset & acl_inherit_map[i].archive_inherit) |
| acl_add_flag_np(acl_flagset, |
| acl_inherit_map[i].platform_inherit); |
| } |
| } |
| |
| /* Try restoring the ACL through 'fd' if we can. */ |
| #if HAVE_ACL_SET_FD |
| if (fd >= 0 && acl_type == ACL_TYPE_ACCESS && acl_set_fd(fd, acl) == 0) |
| ret = ARCHIVE_OK; |
| else |
| #else |
| #if HAVE_ACL_SET_FD_NP |
| if (fd >= 0 && acl_set_fd_np(fd, acl, acl_type) == 0) |
| ret = ARCHIVE_OK; |
| else |
| #endif |
| #endif |
| #if HAVE_ACL_SET_LINK_NP |
| if (acl_set_link_np(name, acl_type, acl) != 0) { |
| archive_set_error(a, errno, "Failed to set %s acl", tname); |
| ret = ARCHIVE_WARN; |
| } |
| #else |
| /* TODO: Skip this if 'name' is a symlink. */ |
| if (acl_set_file(name, acl_type, acl) != 0) { |
| archive_set_error(a, errno, "Failed to set %s acl", tname); |
| ret = ARCHIVE_WARN; |
| } |
| #endif |
| acl_free(acl); |
| return (ret); |
| } |
| #endif |