Beispiel #1
0
int
preserve_dir_acls(struct stat *fs, char *source_dir, char *dest_dir)
{
	acl_t (*aclgetf)(const char *, acl_type_t);
	int (*aclsetf)(const char *, acl_type_t, acl_t);
	struct acl *aclp;
	acl_t acl;
	acl_type_t acl_type;
	int acl_supported = 0, ret, trivial;

	ret = pathconf(source_dir, _PC_ACL_NFS4);
	if (ret > 0) {
		acl_supported = 1;
		acl_type = ACL_TYPE_NFS4;
	} else if (ret < 0 && errno != EINVAL) {
		warn("fpathconf(..., _PC_ACL_NFS4) failed for %s", source_dir);
		return (1);
	}
	if (acl_supported == 0) {
		ret = pathconf(source_dir, _PC_ACL_EXTENDED);
		if (ret > 0) {
			acl_supported = 1;
			acl_type = ACL_TYPE_ACCESS;
		} else if (ret < 0 && errno != EINVAL) {
			warn("fpathconf(..., _PC_ACL_EXTENDED) failed for %s",
			    source_dir);
			return (1);
		}
	}
	if (acl_supported == 0)
		return (0);

	/*
	 * If the file is a link we will not follow it
	 */
	if (S_ISLNK(fs->st_mode)) {
		aclgetf = acl_get_link_np;
		aclsetf = acl_set_link_np;
	} else {
		aclgetf = acl_get_file;
		aclsetf = acl_set_file;
	}
	if (acl_type == ACL_TYPE_ACCESS) {
		/*
		 * Even if there is no ACL_TYPE_DEFAULT entry here, a zero
		 * size ACL will be returned. So it is not safe to simply
		 * check the pointer to see if the default ACL is present.
		 */
		acl = aclgetf(source_dir, ACL_TYPE_DEFAULT);
		if (acl == NULL) {
			warn("failed to get default acl entries on %s",
			    source_dir);
			return (1);
		}
		aclp = &acl->ats_acl;
		if (aclp->acl_cnt != 0 && aclsetf(dest_dir,
		    ACL_TYPE_DEFAULT, acl) < 0) {
			warn("failed to set default acl entries on %s",
			    dest_dir);
			acl_free(acl);
			return (1);
		}
		acl_free(acl);
	}
	acl = aclgetf(source_dir, acl_type);
	if (acl == NULL) {
		warn("failed to get acl entries on %s", source_dir);
		return (1);
	}
	if (acl_is_trivial_np(acl, &trivial)) {
		warn("acl_is_trivial() failed on %s", source_dir);
		acl_free(acl);
		return (1);
	}
	if (trivial) {
		acl_free(acl);
		return (0);
	}
	if (aclsetf(dest_dir, acl_type, acl) < 0) {
		warn("failed to set acl entries on %s", dest_dir);
		acl_free(acl);
		return (1);
	}
	acl_free(acl);
	return (0);
}
Beispiel #2
0
int preserve_dir_acls(struct stat *fs, char *source_dir, char *dest_dir) {
	acl_t (*aclgetf)(const char *, acl_type_t);
	int (*aclsetf)(const char *, acl_type_t, acl_t);
	struct acl *aclp;
	acl_t acl;
	acl_type_t acl_type;
	int acl_supported = 0, ret, trivial;

	ret = pathconf(source_dir, _PC_ACL_NFS4);
	if (ret > 0) {
		acl_supported = 1;
		acl_type = ACL_TYPE_NFS4;
	} else if (ret < 0 && errno != EINVAL) {
		warn("fpathconf(..., _PC_ACL_NFS4) failed for %s", source_dir);
		return (1);
	}
	if (acl_supported == 0) {
		ret = pathconf(source_dir, _PC_ACL_EXTENDED);
		if (ret > 0) {
			acl_supported = 1;
			acl_type = ACL_TYPE_ACCESS;
		} else if (ret < 0 && errno != EINVAL) {
			warn("fpathconf(..., _PC_ACL_EXTENDED) failed for %s", source_dir);
			return (1);
		}
	}
	if (acl_supported == 0)
		return (0);
	if (S_ISLNK(fs->st_mode)) {
		aclgetf = acl_get_link_np;
		aclsetf = acl_set_link_np;
	} else {
		aclgetf = acl_get_file;
		aclsetf = acl_set_file;
	}
	if (acl_type == ACL_TYPE_ACCESS) {
		acl = aclgetf(source_dir, ACL_TYPE_DEFAULT);
		if (acl == NULL) {
			warn("failed to get default acl entries on %s", source_dir);
			return (1);
		}
		aclp = &acl->ats_acl;
		if (aclp->acl_cnt != 0 && aclsetf(dest_dir, ACL_TYPE_DEFAULT, acl) < 0) {
			warn("failed to set default acl entries on %s", dest_dir);
			acl_free(acl);
			return (1);
		}
		acl_free(acl);
	}
	acl = aclgetf(source_dir, acl_type);
	if (acl == NULL) {
		warn("failed to get acl entries on %s", source_dir);
		return (1);
	}
	if (acl_is_trivial_np(acl, &trivial)) {
		warn("acl_is_trivial() failed on %s", source_dir);
		acl_free(acl);
		return (1);
	}
	if (trivial) {
		acl_free(acl);
		return (0);
	}
	if (aclsetf(dest_dir, acl_type, acl) < 0) {
		warn("failed to set acl entries on %s", dest_dir);
		acl_free(acl);
		return (1);
	}
	acl_free(acl);
	return (0);
}