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📄 Makefile.inc(2.82 KB)
📄 Symbol.map(1.39 KB)
📄 acl.3(9.51 KB)
📄 acl_add_flag_np.3(2.91 KB)
📄 acl_add_perm.3(4.12 KB)
📄 acl_branding.c(3.9 KB)
📄 acl_calc_mask.3(2.7 KB)
📄 acl_calc_mask.c(3.71 KB)
📄 acl_clear_flags_np.3(2.35 KB)
📄 acl_clear_perms.3(2.33 KB)
📄 acl_compat.c(2.24 KB)
📄 acl_copy.c(2.4 KB)
📄 acl_copy_entry.3(2.35 KB)
📄 acl_create_entry.3(2.83 KB)
📄 acl_delete.3(4.28 KB)
📄 acl_delete.c(2.33 KB)
📄 acl_delete_entry.3(2.73 KB)
📄 acl_delete_entry.c(4.25 KB)
📄 acl_delete_flag_np.3(2.43 KB)
📄 acl_delete_perm.3(2.42 KB)
📄 acl_dup.3(3.19 KB)
📄 acl_entry.c(3.58 KB)
📄 acl_flag.c(3.08 KB)
📄 acl_free.3(2.61 KB)
📄 acl_free.c(1.83 KB)
📄 acl_from_text.3(3.69 KB)
📄 acl_from_text.c(6.9 KB)
📄 acl_from_text_nfs4.c(6.53 KB)
📄 acl_get.3(4.81 KB)
📄 acl_get.c(5.01 KB)
📄 acl_get_brand_np.3(2.69 KB)
📄 acl_get_entry.3(3.62 KB)
📄 acl_get_entry_type_np.3(2.49 KB)
📄 acl_get_flag_np.3(2.63 KB)
📄 acl_get_flagset_np.3(2.51 KB)
📄 acl_get_perm_np.3(2.65 KB)
📄 acl_get_permset.3(2.49 KB)
📄 acl_get_qualifier.3(3.79 KB)
📄 acl_get_tag_type.3(2.53 KB)
📄 acl_id_to_name.c(2.91 KB)
📄 acl_init.3(3.31 KB)
📄 acl_init.c(2.64 KB)
📄 acl_is_trivial_np.3(2.84 KB)
📄 acl_perm.c(2.88 KB)
📄 acl_set.3(4.53 KB)
📄 acl_set.c(5.67 KB)
📄 acl_set_entry_type_np.3(2.81 KB)
📄 acl_set_flagset_np.3(2.51 KB)
📄 acl_set_permset.3(2.38 KB)
📄 acl_set_qualifier.3(2.61 KB)
📄 acl_set_tag_type.3(3.08 KB)
📄 acl_strip.c(5.17 KB)
📄 acl_strip_np.3(3.18 KB)
📄 acl_support.c(9.9 KB)
📄 acl_support.h(3.14 KB)
📄 acl_support_nfs4.c(6.48 KB)
📄 acl_to_text.3(4.64 KB)
📄 acl_to_text.c(6.73 KB)
📄 acl_to_text_nfs4.c(5.91 KB)
📄 acl_valid.3(4.96 KB)
📄 acl_valid.c(3.38 KB)
📄 extattr.3(3.34 KB)
📄 extattr.c(2.38 KB)
📄 mac.3(5.67 KB)
📄 mac.c(9.21 KB)
📄 mac.conf(507 B)
📄 mac.conf.5(3.99 KB)
📄 mac_exec.c(1.96 KB)
📄 mac_free.3(3.06 KB)
📄 mac_get.3(4.48 KB)
📄 mac_get.c(2.6 KB)
📄 mac_is_present.3(2.83 KB)
📄 mac_prepare.3(3.96 KB)
📄 mac_set.3(4.04 KB)
📄 mac_set.c(2.29 KB)
📄 mac_text.3(3.33 KB)
📄 posix1e.3(3.53 KB)

Editing: acl_from_text_nfs4.c

/*-
 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
 *
 * Copyright (c) 2008, 2009 Edward Tomasz Napierała <trasz@FreeBSD.org>
 *
 * 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.
 * 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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 <sys/cdefs.h>
__FBSDID("$FreeBSD$");

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <assert.h>
#include <string.h>
#include <pwd.h>
#include <grp.h>
#include <ctype.h>
#include <err.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <sys/acl.h>

#include "acl_support.h"

#define MAX_ENTRY_LENGTH 512

/*
 * Parse the tag field of ACL entry passed as "str".  If qualifier
 * needs to follow, then the variable referenced by "need_qualifier"
 * is set to 1, otherwise it's set to 0.
 */
static int
parse_tag(const char *str, acl_entry_t entry, int *need_qualifier)
{

assert(need_qualifier != NULL);
	*need_qualifier = 0;

if (strcmp(str, "owner@") == 0)
		return (acl_set_tag_type(entry, ACL_USER_OBJ));
	if (strcmp(str, "group@") == 0)
		return (acl_set_tag_type(entry, ACL_GROUP_OBJ));
	if (strcmp(str, "everyone@") == 0)
		return (acl_set_tag_type(entry, ACL_EVERYONE));

*need_qualifier = 1;

if (strcmp(str, "user") == 0 || strcmp(str, "u") == 0)
		return (acl_set_tag_type(entry, ACL_USER));
	if (strcmp(str, "group") == 0 || strcmp(str, "g") == 0)
		return (acl_set_tag_type(entry, ACL_GROUP));

warnx("malformed ACL: invalid \"tag\" field");

return (-1);
}

/*
 * Parse the qualifier field of ACL entry passed as "str".
 * If user or group name cannot be resolved, then the variable
 * referenced by "need_qualifier" is set to 1; it will be checked
 * later to figure out whether the appended_id is required.
 */
static int
parse_qualifier(char *str, acl_entry_t entry, int *need_qualifier)
{
	int qualifier_length, error;
	uid_t id;
	acl_tag_t tag;

assert(need_qualifier != NULL);
	*need_qualifier = 0;

qualifier_length = strlen(str);

if (qualifier_length == 0) {
		warnx("malformed ACL: empty \"qualifier\" field");
		return (-1);
	}

error = acl_get_tag_type(entry, &tag);
	if (error)
		return (error);

error = _acl_name_to_id(tag, str, &id);
	if (error) {
		*need_qualifier = 1;
		return (0);
	}

return (acl_set_qualifier(entry, &id));
}

static int
parse_access_mask(char *str, acl_entry_t entry)
{
	int error;
	acl_perm_t perm;

error = _nfs4_parse_access_mask(str, &perm);
	if (error)
		return (error);

error = acl_set_permset(entry, &perm);

return (error);
}

static int
parse_flags(char *str, acl_entry_t entry)
{
	int error;
	acl_flag_t flags;

error = _nfs4_parse_flags(str, &flags);
	if (error)
		return (error);

error = acl_set_flagset_np(entry, &flags);

return (error);
}

static int
parse_entry_type(const char *str, acl_entry_t entry)
{

if (strcmp(str, "allow") == 0)
		return (acl_set_entry_type_np(entry, ACL_ENTRY_TYPE_ALLOW));
	if (strcmp(str, "deny") == 0)
		return (acl_set_entry_type_np(entry, ACL_ENTRY_TYPE_DENY));
	if (strcmp(str, "audit") == 0)
		return (acl_set_entry_type_np(entry, ACL_ENTRY_TYPE_AUDIT));
	if (strcmp(str, "alarm") == 0)
		return (acl_set_entry_type_np(entry, ACL_ENTRY_TYPE_ALARM));

warnx("malformed ACL: invalid \"type\" field");

return (-1);
}

static int
parse_appended_id(char *str, acl_entry_t entry)
{
	int qualifier_length;
	char *end;
	id_t id;

qualifier_length = strlen(str);
	if (qualifier_length == 0) {
		warnx("malformed ACL: \"appended id\" field present, "
	           "but empty");
		return (-1);
	}

id = strtod(str, &end);
	if (end - str != qualifier_length) {
		warnx("malformed ACL: appended id is not a number");
		return (-1);
	}

return (acl_set_qualifier(entry, &id));
}

static int
number_of_colons(const char *str)
{
	int count = 0;

while (*str != '\0') {
		if (*str == ':')
			count++;

str++;
	}

return (count);
}

int
_nfs4_acl_entry_from_text(acl_t aclp, char *str)
{
	int error, need_qualifier;
	acl_entry_t entry;
	char *field, *qualifier_field;

error = acl_create_entry(&aclp, &entry);
	if (error)
		return (error);

assert(_entry_brand(entry) == ACL_BRAND_NFS4);

if (str == NULL)
		goto truncated_entry;
	field = strsep(&str, ":");

field = string_skip_whitespace(field);
	if ((*field == '\0') && (!str)) {
		/*
		 * Is an entirely comment line, skip to next
		 * comma.
		 */
		return (0);
	}

error = parse_tag(field, entry, &need_qualifier);
	if (error)
		goto malformed_field;

if (need_qualifier) {
		if (str == NULL)
			goto truncated_entry;
		qualifier_field = field = strsep(&str, ":");
		error = parse_qualifier(field, entry, &need_qualifier);
		if (error)
			goto malformed_field;
	}

if (str == NULL)
		goto truncated_entry;
	field = strsep(&str, ":");
	error = parse_access_mask(field, entry);
	if (error)
		goto malformed_field;

if (str == NULL)
		goto truncated_entry;
	/* Do we have "flags" field? */
	if (number_of_colons(str) > 0) {
		field = strsep(&str, ":");
		error = parse_flags(field, entry);
		if (error)
			goto malformed_field;
	}

if (str == NULL)
		goto truncated_entry;
	field = strsep(&str, ":");
	error = parse_entry_type(field, entry);
	if (error)
		goto malformed_field;

if (need_qualifier) {
		if (str == NULL) {
			warnx("malformed ACL: unknown user or group name "
			    "\"%s\"", qualifier_field);
			goto truncated_entry;
		}

error = parse_appended_id(str, entry);
		if (error)
			goto malformed_field;
	}

return (0);

truncated_entry:
malformed_field:
	acl_delete_entry(aclp, entry);
	errno = EINVAL;
	return (-1);
}

003 File Manager

Editing: acl_from_text_nfs4.c

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