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Re: (ITS#7215) Configuration Bug of index_substr_if_{max, min}len
- To: openldap-its@OpenLDAP.org
- Subject: Re: (ITS#7215) Configuration Bug of index_substr_if_{max, min}len
- From: tixu@cs.ucsd.edu
- Date: Mon, 26 Mar 2012 19:16:11 GMT
- Auto-submitted: auto-generated (OpenLDAP-ITS)
--000325575576f2e15a04bc2a31c8
Content-Type: text/plain; charset=ISO-8859-1
hmmm... I have to say I can replay it every time.
just set the following two lines in the beginning of the slapd.conf,
index_substr_if_maxlen 100
index_substr_if_minlen 5
slapd starts without a warning and can serve requests.
T
On Mon, Mar 26, 2012 at 2:43 AM, Howard Chu <hyc@symas.com> wrote:
> tixu@cs.ucsd.edu wrote:
>
>> Full_Name: Tianyin Xu
>> Version: 2.4.30
>> OS: Ubuntu Linux 10.04
>> URL: ftp://ftp.openldap.org/**incoming/<ftp://ftp.openldap.org/incoming/>
>> Submission from: (NULL) (128.54.167.68)
>>
>>
>> 1. Symptom:
>>
>> In the main configuration file of OpenLDAP (slapd.conf), set the following
>> configuration:
>>
>> index_substr_if_minlen 100
>> index_substr_if_maxlen 5
>>
>> Then, everything is fine. The system behaves as expectation. However, if
>> reverse
>> the order of the two configuration line as follows:
>>
>> index_substr_if_maxlen 5
>> index_substr_if_minlen 100
>>
>> Then, the system refused to start, with the following misleading message:
>>
>> Mar 25 21:29:18 tianyin-desktop slapd[12700]:
>> /home/tianyin/openldap-2.4.30/**etc/openldap/slapd.conf: line 1:
>> <index_substr_if_minlen> invalid value (5)
>>
>
> Unable to reproduce this symptom. In both cases I get
>
> testrun/slapd.1.conf: line 31: <index_substr_if_minlen> invalid value (100)
>
> Closing this ITS.
>
>
>> ------------------------------**---------------------------
>>
>> 2. Root cause in terms of code snippet
>>
>> (1) servers/slapd/slap.h
>>
>> #define SLAP_INDEX_SUBSTR_IF_MINLEN_**DEFAULT 2
>> #define SLAP_INDEX_SUBSTR_IF_MAXLEN_**DEFAULT 4
>>
>> (2) servers/slapd/schema_init.c
>>
>> unsigned int index_substr_if_minlen = SLAP_INDEX_SUBSTR_IF_MINLEN_**
>> DEFAULT;
>> unsigned int index_substr_if_maxlen = SLAP_INDEX_SUBSTR_IF_MAXLEN_**
>> DEFAULT;
>>
>> (3) servers/slapd/bconfig.c
>>
>> case CFG_SSTR_IF_MAX:
>> if (c->value_uint< index_substr_if_minlen) {
>> snprintf(c->cr_msg, sizeof(c->cr_msg), "<%s> invalid value",
>> c->argv[0]);
>> Debug(LDAP_DEBUG_ANY, "%s: %s (%d)\n", c->log, c->cr_msg,
>> c->value_int);
>> return(1);
>> }
>> index_substr_if_maxlen = c->value_uint;
>> break;
>>
>> case CFG_SSTR_IF_MIN:
>> if (c->value_uint> index_substr_if_maxlen) {
>> snprintf(c->cr_msg, sizeof( c->cr_msg ), "<%s> invalid value",
>> c->argv[0]);
>> Debug(LDAP_DEBUG_ANY, "%s: %s (%d)\n", c->log, c->cr_msg,
>> c->value_int
>> );
>> return(1);
>> }
>> index_substr_if_minlen = c->value_uint;
>> break;
>>
>> (4) backtrace
>>
>> #0 config_generic (c=0x915760) at bconfig.c:1996
>> #1 0x0000000000433a00 in config_set_vals (Conf=0x8146c0, c=0x915760) at
>> config.c:345
>> #2 0x0000000000433f5f in config_add_vals (Conf=0x8146c0, c=0x915760) at
>> config.c:418
>> #3 0x00000000004351b3 in read_config_file (fname=0x5a0a98
>> "/home/tianyin/openldap-2.4.**30/etc/openldap/slapd.conf", depth=0,
>> cf=0x0,
>> cft=0x8140c0) at config.c:783
>> #4 0x000000000042846b in read_config (fname=0x0, dir=0x0) at
>> bconfig.c:4213
>> #5 0x000000000041c217 in main (argc=1, argv=0x7fffffffe2f8) at main.c:792
>>
>> ------------------------------**---------------------------
>>
>> It's quite clear that the order matters, and this should be a bug related
>> to
>> configuration.
>>
>> Thanks,
>> Tianyin
>>
>>
>>
>
> --
> -- Howard Chu
> CTO, Symas Corp. http://www.symas.com
> Director, Highland Sun http://highlandsun.com/hyc/
> Chief Architect, OpenLDAP http://www.openldap.org/**project/<http://www.openldap.org/project/>
>
--
Tianyin XU,
http://cseweb.ucsd.edu/~tixu/
--000325575576f2e15a04bc2a31c8
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable
hmmm... I have to say I can replay it every time.<div><br></div><div>just s=
et the following two lines in the beginning of the slapd.conf,</div><div><b=
r></div><div><div>index_substr_if_maxlen 100</div><div>index_substr_if_minl=
en 5</div>
<div><br></div><div>slapd starts without a warning and can serve requests.<=
/div><div><br></div><div>T</div>
<div><br></div><br><div class=3D"gmail_quote">On Mon, Mar 26, 2012 at 2:43 =
AM, Howard Chu <span dir=3D"ltr"><<a href=3D"mailto:hyc@symas.com"; targe=
t=3D"_blank">hyc@symas.com</a>></span> wrote:<br><blockquote class=3D"gm=
ail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-le=
ft:1ex">
<div><a href=3D"mailto:tixu@cs.ucsd.edu"; target=3D"_blank">tixu@cs.ucsd.edu=
</a> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">
Full_Name: Tianyin Xu<br>
Version: 2.4.30<br>
OS: Ubuntu Linux 10.04<br>
URL: <a href=3D"ftp://ftp.openldap.org/incoming/"; target=3D"_blank">ftp://f=
tp.openldap.org/<u></u>incoming/</a><br>
Submission from: (NULL) (128.54.167.68)<br>
<br>
<br>
1. Symptom:<br>
<br>
In the main configuration file of OpenLDAP (slapd.conf), set the following<=
br>
configuration:<br>
<br>
index_substr_if_minlen 100<br>
index_substr_if_maxlen 5<br>
<br>
Then, everything is fine. The system behaves as expectation. However, if re=
verse<br>
the order of the two configuration line as follows:<br>
<br>
index_substr_if_maxlen 5<br>
index_substr_if_minlen 100<br>
<br>
Then, the system refused to start, with the following misleading message:<b=
r>
<br>
Mar 25 21:29:18 tianyin-desktop slapd[12700]:<br>
/home/tianyin/openldap-2.4.30/<u></u>etc/openldap/slapd.conf: line 1:<br>
<index_substr_if_minlen> =A0invalid value (5)<br>
</blockquote>
<br></div>
Unable to reproduce this symptom. In both cases I get<br>
<br>
testrun/slapd.1.conf: line 31: <index_substr_if_minlen> invalid value=
(100)<br>
<br>
Closing this ITS.<div><div><br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">
<br>
------------------------------<u></u>---------------------------<br>
<br>
2. Root cause in terms of code snippet<br>
<br>
(1) servers/slapd/slap.h<br>
<br>
#define SLAP_INDEX_SUBSTR_IF_MINLEN_<u></u>DEFAULT =A0 =A0 2<br>
#define SLAP_INDEX_SUBSTR_IF_MAXLEN_<u></u>DEFAULT =A0 =A0 4<br>
<br>
(2) servers/slapd/schema_init.c<br>
<br>
unsigned int index_substr_if_minlen =3D SLAP_INDEX_SUBSTR_IF_MINLEN_<u></u>=
DEFAULT;<br>
unsigned int index_substr_if_maxlen =3D SLAP_INDEX_SUBSTR_IF_MAXLEN_<u></u>=
DEFAULT;<br>
<br>
(3) servers/slapd/bconfig.c<br>
<br>
case CFG_SSTR_IF_MAX:<br>
=A0 =A0 if (c->value_uint< =A0index_substr_if_minlen) {<br>
=A0 =A0 =A0 =A0 snprintf(c->cr_msg, sizeof(c->cr_msg), "<%s&=
gt; =A0invalid value",<br>
c->argv[0]);<br>
=A0 =A0 =A0 =A0 Debug(LDAP_DEBUG_ANY, "%s: %s (%d)\n", c->log=
, c->cr_msg,<br>
c->value_int);<br>
=A0 =A0 =A0 =A0 return(1);<br>
=A0 =A0 }<br>
=A0 =A0 index_substr_if_maxlen =3D c->value_uint;<br>
=A0 =A0 break;<br>
<br>
case CFG_SSTR_IF_MIN:<br>
=A0 =A0 if (c->value_uint> =A0index_substr_if_maxlen) {<br>
=A0 =A0 =A0 =A0 snprintf(c->cr_msg, sizeof( c->cr_msg ), "<%=
s> =A0invalid value",<br>
c->argv[0]);<br>
=A0 =A0 =A0 =A0 Debug(LDAP_DEBUG_ANY, "%s: %s (%d)\n", c->log=
, c->cr_msg, c->value_int<br>
);<br>
=A0 =A0 =A0 =A0 return(1);<br>
=A0 =A0 }<br>
=A0 =A0 index_substr_if_minlen =3D c->value_uint;<br>
=A0 =A0 break;<br>
<br>
(4) backtrace<br>
<br>
#0 =A0config_generic (c=3D0x915760) at bconfig.c:1996<br>
#1 =A00x0000000000433a00 in config_set_vals (Conf=3D0x8146c0, c=3D0x915760)=
at<br>
config.c:345<br>
#2 =A00x0000000000433f5f in config_add_vals (Conf=3D0x8146c0, c=3D0x915760)=
at<br>
config.c:418<br>
#3 =A00x00000000004351b3 in read_config_file (fname=3D0x5a0a98<br>
"/home/tianyin/openldap-2.4.<u></u>30/etc/openldap/slapd.conf", d=
epth=3D0, cf=3D0x0,<br>
cft=3D0x8140c0) at config.c:783<br>
#4 =A00x000000000042846b in read_config (fname=3D0x0, dir=3D0x0) at bconfig=
.c:4213<br>
#5 =A00x000000000041c217 in main (argc=3D1, argv=3D0x7fffffffe2f8) at main.=
c:792<br>
<br>
------------------------------<u></u>---------------------------<br>
<br>
It's quite clear that the order matters, and this should be a bug relat=
ed to<br>
configuration.<br>
<br>
Thanks,<br>
Tianyin<br>
<br>
<br>
</blockquote>
<br>
<br></div></div><span><font color=3D"#888888">
-- <br>
=A0-- Howard Chu<br>
=A0CTO, Symas Corp. =A0 =A0 =A0 =A0 =A0 <a href=3D"http://www.symas.com"; t=
arget=3D"_blank">http://www.symas.com</a><br>
=A0Director, Highland Sun =A0 =A0 <a href=3D"http://highlandsun.com/hyc/"; =
target=3D"_blank">http://highlandsun.com/hyc/</a><br>
=A0Chief Architect, OpenLDAP =A0<a href=3D"http://www.openldap.org/project=
/" target=3D"_blank">http://www.openldap.org/<u></u>project/</a><br>
</font></span></blockquote></div><br><br clear=3D"all"><div><br></div>-- <b=
r><span style=3D"text-indent:0px;letter-spacing:normal;font-variant:normal;=
text-align:-webkit-auto;font-style:normal;font-weight:normal;line-height:no=
rmal;border-collapse:separate;text-transform:none;font-size:medium;white-sp=
ace:normal;font-family:'Times New Roman';word-spacing:0px"><span st=
yle=3D"color:rgb(102,102,102);font-family:arial;font-size:small">Tianyin XU=
,<br>
<a href=3D"http://cseweb.ucsd.edu/%7Etixu/"; target=3D"_blank">http://cseweb=
.ucsd.edu/~tixu/</a></span></span><br>
</div>
--000325575576f2e15a04bc2a31c8--