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📄 ChangeLog(38.93 KB)
📄 Makefile.am(4.54 KB)
📄 Makefile.in(52.12 KB)
📄 acl.c(5.6 KB)
📄 ad.c(32.74 KB)
📄 admin.h(7.96 KB)
📄 bump_pw_expire.c(2.05 KB)
📄 check-cracklib.pl(2.79 KB)
📄 chpass_c.c(3.88 KB)
📄 chpass_s.c(5.58 KB)
📄 client_glue.c(4.39 KB)
📄 common_glue.c(3.82 KB)
📄 context_s.c(5.49 KB)
📄 create_c.c(2.76 KB)
📄 create_s.c(5.7 KB)
📄 default_keys.c(3.34 KB)
📄 delete_c.c(2.63 KB)
📄 delete_s.c(2.67 KB)
📄 destroy_c.c(2.11 KB)
📄 destroy_s.c(2.6 KB)
📄 ent_setup.c(6.71 KB)
📄 error.c(1.82 KB)
📄 flush.c(1.77 KB)
📄 flush_c.c(1.68 KB)
📄 flush_s.c(1.68 KB)
📄 free.c(2.93 KB)
📄 get_c.c(2.79 KB)
📄 get_princs_c.c(2.87 KB)
📄 get_princs_s.c(3.42 KB)
📄 get_s.c(9.63 KB)
📄 init_c.c(18.89 KB)
📄 init_s.c(6.66 KB)
📄 iprop-commands.in(3.28 KB)
📄 iprop-log.8(3.79 KB)
📄 iprop-log.c(12.01 KB)
📄 iprop.8(5.43 KB)
📄 iprop.h(2.17 KB)
📄 ipropd_common.c(2.21 KB)
📄 ipropd_master.c(26.06 KB)
📄 ipropd_slave.c(20.02 KB)
📄 kadm5-private.h(10.7 KB)
📄 kadm5-protos.h(5.09 KB)
📄 kadm5-pwcheck.h(2.48 KB)
📄 kadm5_err.et(3.43 KB)
📄 kadm5_locl.h(2.43 KB)
📄 kadm5_pwcheck.3(5.21 KB)
📄 keys.c(3.03 KB)
📄 log.c(24.91 KB)
📄 marshall.c(9.05 KB)
📄 modify_c.c(2.69 KB)
📄 modify_s.c(3.28 KB)
📄 password_quality.c(12.52 KB)
📄 private.h(4.47 KB)
📄 privs_c.c(2.66 KB)
📄 privs_s.c(1.81 KB)
📄 randkey_c.c(2.95 KB)
📄 randkey_s.c(3.29 KB)
📄 rename_c.c(2.57 KB)
📄 rename_s.c(3.64 KB)
📄 sample_passwd_check.c(2.94 KB)
📄 send_recv.c(3.14 KB)
📄 server_glue.c(4.39 KB)
📄 set_keys.c(6.81 KB)
📄 set_modifier.c(2.08 KB)
📄 test_pw_quality.c(3.08 KB)
📄 version-script.map(1.55 KB)

Editing: kadm5_pwcheck.3

.\" Copyright (c) 2003 - 2004 Kungliga Tekniska Högskolan
.\" (Royal Institute of Technology, Stockholm, Sweden).
.\" 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.
.\"
.\" 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.
.\"
.\" 3. Neither the name of the Institute nor the names of its contributors
.\"    may be used to endorse or promote products derived from this software
.\"    without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE INSTITUTE 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 INSTITUTE 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.
.\"
.\" $Id$
.\"
.Dd February 29, 2004
.Dt KADM5_PWCHECK 3
.Os HEIMDAL
.Sh NAME
.Nm krb5_pwcheck ,
.Nm kadm5_setup_passwd_quality_check ,
.Nm kadm5_add_passwd_quality_verifier ,
.Nm kadm5_check_password_quality
.Nd Heimdal warning and error functions
.Sh LIBRARY
Kerberos 5 Library (libkadm5srv, -lkadm5srv)
.Sh SYNOPSIS
.In kadm5-protos.h
.In kadm5-pwcheck.h
.Ft void
.Fo kadm5_setup_passwd_quality_check
.Fa "krb5_context context"
.Fa "const char *check_library"
.Fa "const char *check_function"
.Fc
.Ft "krb5_error_code"
.Fo kadm5_add_passwd_quality_verifier
.Fa "krb5_context context"
.Fa "const char *check_library"
.Fc
.Ft "const char *"
.Fo kadm5_check_password_quality
.Fa "krb5_context context"
.Fa "krb5_principal principal"
.Fa "krb5_data *pwd_data"
.Fc
.Ft int
.Fo "(*kadm5_passwd_quality_check_func)"
.Fa "krb5_context context"
.Fa "krb5_principal principal"
.Fa "krb5_data *password"
.Fa "const char *tuning"
.Fa "char *message"
.Fa "size_t length"
.Fc
.Sh DESCRIPTION
These functions perform the quality check for the heimdal database
library.
.Pp
There are two versions of the shared object API; the old version (0)
is deprecated, but still supported.  The new version (1) supports
multiple password quality checking policies in the same shared object.
See below for details.
.Pp
The password quality checker will run all policies that are
configured by the user.  If any policy rejects the password, the password
will be rejected.
.Pp
Policy names are of the form
.Ql module-name:policy-name
or, if the the policy name is unique enough, just
.Ql policy-name .
.Sh IMPLEMENTING A PASSWORD QUALITY CHECKING SHARED OBJECT
(This refers to the version 1 API only.)
.Pp
Module shared objects may conveniently be compiled and linked with
.Xr libtool 1 .
An object needs to export a symbol called
.Ql kadm5_password_verifier
of the type
.Ft "struct kadm5_pw_policy_verifier" .
.Pp
Its
.Ft name
and
.Ft vendor
fields should contain the obvious information.
.Ft name
must match the
.Ql module-name
portion of the policy name (the part before the colon), if the policy name
contains a colon, or the policy will not be run.
.Ft version
should be
.Dv KADM5_PASSWD_VERSION_V1 .
.Pp
.Ft funcs
contains an array of
.Ft "struct kadm5_pw_policy_check_func"
structures that is terminated with an entry whose
.Ft name
component is
.Dv NULL .
The
.Ft name
field of the array must match the
.Ql policy-name
portion of a policy name (the part after the colon, or the complete policy
name if there is no colon) specified by the user or the policy will not be
run.  The
.Ft func
fields of the array elements are functions that are exported by the
module to be called to check the password.  They get the following
arguments:  the Kerberos context, principal, password, a tuning parameter, and
a pointer to a message buffer and its length.  The tuning parameter
for the quality check function is currently always
.Dv NULL .
If the password is acceptable, the function returns zero.  Otherwise
it returns non-zero and fills in the message buffer with an
appropriate explanation.
.Sh RUNNING THE CHECKS
.Nm kadm5_setup_passwd_quality_check
sets up type 0 checks.  It sets up all type 0 checks defined in
.Xr krb5.conf 5
if called with the last two arguments null.
.Pp
.Nm kadm5_add_passwd_quality_verifier
sets up type 1 checks.  It sets up all type 1 tests defined in
.Xr krb5.conf 5
if called with a null second argument.
.Nm kadm5_check_password_quality
runs the checks in the order in which they are defined in
.Xr krb5.conf 5
and the order in which they occur in a
module's
.Ft funcs
array until one returns non-zero.
.Sh SEE ALSO
.Xr libtool 1 ,
.Xr krb5 3 ,
.Xr krb5.conf 5

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