Re: support for LDAP URLs

On 2012-12-04 10:18:36 +0100, Boszormenyi Zoltan wrote:
> 2012-11-13 04:38 keltezéssel, Peter Eisentraut írta:
> >Here is a patch to support RFC 2255 LDAP URLs in pg_hba.conf. So,
> >instead of, say
> >
> >host ... ldap ldapserver=ldap.example.net ldapbasedn="dc=example, dc=net" ldapsearchattribute=uid
> >
> >you could write
> >
> >host ... ldap lapurl="ldap://ldap.example.net/dc=example,dc=net?uid?sub"
> >
> >Apache and probably other software uses the same format, and it's easier
> >to have a common format for all such configuration instead of having to
> >translate the information provided by the LDAP admin into each
> >software's particular configuration spellings.
> >
> >I'm using the OpenLDAP-provided URL parsing routine, which means this
> >wouldn't be supported on Windows. But we already support different
> >authentication settings on different platforms, so this didn't seem such
> >a big problem.
>
> This patch was committed today but it fails to compile for non-ldap configs:
>
> $ ./configure --prefix=$HOME/pg93dev --enable-debug --enable-cassert --enable-depend
>
> make[3]: Entering directory
> `/home/zozo/crosscolumn/psql-c-relax/postgresql.1/src/backend/libpq'
> gcc -O2 -Wall -Wmissing-prototypes -Wpointer-arith
> -Wdeclaration-after-statement -Wendif-labels -Wmissing-format-attribute
> -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard
> -g -I../../../src/include -D_GNU_SOURCE -c -o hba.o hba.c -MMD -MP -MF
> .deps/hba.Po
> hba.c: In function ‘parse_hba_auth_opt’:
> hba.c:1388:23: error: ‘LDAP_SCOPE_SUBTREE’ undeclared (first use in this function)
> hba.c:1388:23: note: each undeclared identifier is reported only once for
> each function it appears in
> hba.c:1451:3: error: unknown type name ‘LDAPURLDesc’
> hba.c:1452:7: warning: unused variable ‘rc’ [-Wunused-variable]
> hba.c:1451:16: warning: unused variable ‘urldata’ [-Wunused-variable]
> make[3]: *** [hba.o] Error 1
>
> The code could use some #ifdef USE_LDAP conditionals.

As I needed to base some stuff on a later commit (5ce108bf3) and I
didn't want to include a revert in the tree, here's what I applied
locally to fix this. Maybe somebody can apply something like that to get
the buildfarm green again?

Greetings,

Andres Freund

--
Andres Freund http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services