Hi, all,
I wanna set "backend perl" in my OpenLDAP configuration.
I used "--enable-perl" option to enable the perl programming backend. From
the config.log, it seems everything is fine. I list all the perl-related
entries in the config.log as below. I also attach my config.log in case you
want to check it.
---------------------------------------------------
configure:12106: checking for perl
configure:12124: found /usr/bin/perl
configure:12137: result: /usr/bin/perl
......
ac_cv_path_PERLBIN=/usr/bin/perl
.....
PERLBIN='/usr/bin/perl'
PERL_CPPFLAGS=' -D_REENTRANT -D_GNU_SOURCE -DDEBIAN -fno-strict-aliasing
-pipe -fstack-protector -I/usr/local/include -D_LARGEFILE_SOURCE
-D_FILE_OFFSET_BITS=64 -I/usr/lib/perl/5.10/CORE '
......
SLAPD_PERL_LDFLAGS='-Wl,-E -fstack-protector -L/usr/local/lib
-L/usr/lib/perl/5.10/CORE -lperl -ldl -lm -lpthread -lcrypt'
---------------------------------------------------
However, when I start the slapd, the server fails to start with the
following message printed:
Mar 26 00:37:32 tianyin-desktop slapd[11062]:
/home/tianyin/openldap-2.4.30/etc/openldap/slapd.conf: line 103: <backend>
failed init (perl)!
I used GDB to trace the code and find the bomb point is in backend_info()
as follows. slapd failed to find the corresponding backend information, and
finally return NULL.
BackendInfo* backend_info(const char *type)
{
BackendInfo *bi;
/* search for the backend type */
=> LDAP_STAILQ_FOREACH(bi,&backendInfo,bi_next) {
if( strcasecmp(bi->bi_type, type) == 0 ) {
return bi;
}
}
return NULL;
}
The backtrace is:
#0 backend_info (type=0x91fb88 "perl") at backend.c:533
#1 0x000000000041f627 in config_generic (c=0x9201f0) at bconfig.c:1502
#2 0x0000000000434674 in config_set_vals (Conf=0x81a460, c=0x9201f0) at
config.c:345
#3 0x0000000000434bd3 in config_add_vals (Conf=0x81a460, c=0x9201f0) at
config.c:418
#4 0x0000000000435e27 in read_config_file (fname=0x5a5c40
"/home/tianyin/openldap-2.4.30/etc/openldap/slapd.conf", depth=0, cf=0x0,
cft=0x81a1a0) at config.c:783
#5 0x00000000004290de in read_config (fname=0x0, dir=0x0) at bconfig.c:4213
#6 0x000000000041ccf7 in main (argc=1, argv=0x7fffffffe2f8) at main.c:792
Does anyone use the perl programmable backend before?
Thanks in advance!
Tianyin
--
Tianyin XU,
http://cseweb.ucsd.edu/~tixu/
