Re: [PATCH 5/6] add missing WITH_SASL in modules lookup_ldap.c

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On Tue, Jul 23, 2013 at 6:35 PM, Ian Kent <raven@xxxxxxxxxx> wrote:
> On Mon, 2013-07-22 at 22:59 +0800, Lan Yixun (dlan) wrote:
>> From: "Lan Yixun (dlan)" <dennis.yxun@xxxxxxxxx>
>>
>> ---
>> Gentoo Bugs:
>>  https://bugs.gentoo.org/show_bug.cgi?id=361899
>
> Not sure about this one either.
> I have a patch in the queue that's been sitting for some time that does
> this and some more. I'd like to include it in 5.0.8 but I'm not sure it
> actually works properly. I need to go over it somewhat before I commit
> it.
>
> Here it is fyi:
>
> autofs-5.0.7 - fix compilation of lookup_ldap.c without sasl
>
> From: Dustin Polke <DuPol@xxxxxx>
>
> See https://bugs.gentoo.org/show_bug.cgi?id=361899 for more info.
>
> Edited by: Ian Kent <raven@xxxxxxxxxx>
> - fix parse_ldap_config() is needed by ldap but previously excluded.
> - exclude other references to ctxt->extern_cert and ctxt->extern_key.
> - prevent memory leak if present in config but not used.
> - remove now unused set_env().
> ---
>  CHANGELOG             |    1 +
>  include/lookup_ldap.h |    4 ++--
>  lib/Makefile          |    4 ++++
>  modules/Makefile      |    6 ++++--
>  modules/lookup_ldap.c |   14 ++++++++++++--
>  5 files changed, 23 insertions(+), 6 deletions(-)
>
> diff --git a/CHANGELOG b/CHANGELOG
> index 3228d6b..69fd1e7 100644
> --- a/CHANGELOG
> +++ b/CHANGELOG
> @@ -57,6 +57,7 @@
>  - fix a couple of compiler warnings.
>  - add after sssd dependency to unit file.
>  - dont start readmap unless ready.
> +- fix compilation of lookup_ldap.c without sasl.
>
>  25/07/2012 autofs-5.0.7
>  =======================
> diff --git a/include/lookup_ldap.h b/include/lookup_ldap.h
> index 9a4ce73..f34c029 100644
> --- a/include/lookup_ldap.h
> +++ b/include/lookup_ldap.h
> @@ -11,6 +11,8 @@
>  #include <krb5.h>
>  #endif
>
> +#include <libxml/tree.h>
> +
>  #include "list.h"
>  #include "dclist.h"
>
> @@ -92,7 +94,6 @@ struct lookup_context {
>  };
>
>
> -#ifdef WITH_SASL
>  #define LDAP_AUTH_CONF_FILE "test"
>
>  #define LDAP_TLS_DONT_USE      0
> @@ -104,7 +105,6 @@ struct lookup_context {
>  #define LDAP_AUTH_REQUIRED     0x0002
>  #define LDAP_AUTH_AUTODETECT   0x0004
>  #define LDAP_NEED_AUTH         (LDAP_AUTH_REQUIRED|LDAP_AUTH_AUTODETECT)
> -#endif
>
>  #define LDAP_AUTH_USESIMPLE    0x0008
>
> diff --git a/lib/Makefile b/lib/Makefile
> index 5418009..4a5b712 100644
> --- a/lib/Makefile
> +++ b/lib/Makefile
> @@ -24,6 +24,10 @@ CFLAGS += -I../include -fPIC -D_GNU_SOURCE
>  CFLAGS += -DAUTOFS_MAP_DIR=\"$(autofsmapdir)\"
>  CFLAGS += -DAUTOFS_CONF_DIR=\"$(autofsconfdir)\"
>
> +ifeq ($(LDAP), 1)
> +  CFLAGS += $(XML_FLAGS) $(XML_LIBS)
> +endif
> +
>  .PHONY: all install clean
>
>  all: autofs.a
> diff --git a/modules/Makefile b/modules/Makefile
> index c5deb24..2589ae0 100644
> --- a/modules/Makefile
> +++ b/modules/Makefile
> @@ -45,10 +45,12 @@ endif
>  ifeq ($(LDAP), 1)
>    SRCS += lookup_ldap.c
>    MODS += lookup_ldap.so
> +  LDAP_FLAGS += $(XML_FLAGS) -DLDAP_THREAD_SAFE
> +  LIBLDAP += $(XML_LIBS)
>    ifeq ($(SASL), 1)
>      SASL_OBJ = cyrus-sasl.o cyrus-sasl-extern.o
> -    LDAP_FLAGS += $(SASL_FLAGS) $(XML_FLAGS) $(KRB5_FLAGS)
> -DLDAP_THREAD_SAFE
> -    LIBLDAP += $(LIBSASL) $(XML_LIBS) $(KRB5_LIBS)
> +    LDAP_FLAGS += $(SASL_FLAGS) $(KRB5_FLAGS)
> +    LIBLDAP += $(LIBSASL) $(KRB5_LIBS)
>    endif
>  endif
>
> diff --git a/modules/lookup_ldap.c b/modules/lookup_ldap.c
> index a2bfafd..904cc21 100644
> --- a/modules/lookup_ldap.c
> +++ b/modules/lookup_ldap.c
> @@ -66,6 +66,7 @@ struct ldap_search_params {
>
>  static int decode_percent_hack(const char *, char **);
>
> +#ifdef HAVE_SASL
>  static int set_env(unsigned logopt, const char *name, const char *val)
>  {
>         int ret = setenv(name, val, 1);
> @@ -75,6 +76,7 @@ static int set_env(unsigned logopt, const char *name,
> const char *val)
>         }
>         return 1;
>  }
> +#endif
>
>  #ifndef HAVE_LDAP_CREATE_PAGE_CONTROL
>  int ldap_create_page_control(LDAP *ldap, ber_int_t pagesize,
> @@ -585,10 +587,12 @@ static LDAP *do_connect(unsigned logopt, const
> char *uri, struct lookup_context
>  {
>         LDAP *ldap;
>
> +#ifdef HAVE_SASL
>         if (ctxt->extern_cert && ctxt->extern_key) {
>                 set_env(logopt, ENV_LDAPTLS_CERT, ctxt->extern_cert);
>                 set_env(logopt, ENV_LDAPTLS_KEY, ctxt->extern_key);
>         }
> +#endif
>
>         ldap = init_ldap_connection(logopt, uri, ctxt);
>         if (ldap) {
> @@ -791,7 +795,6 @@ find_server:
>         return ldap;
>  }
>
> -#ifdef WITH_SASL
>  int get_property(unsigned logopt, xmlNodePtr node, const char *prop,
> char **value)
>  {
>         xmlChar *ret;
> @@ -812,6 +815,7 @@ int get_property(unsigned logopt, xmlNodePtr node,
> const char *prop, char **valu
>         return 0;
>  }
>
> +#ifdef WITH_SASL
>  /*
>   *  For plain text, login and digest-md5 authentication types, we need
>   *  user and password credentials.
> @@ -824,6 +828,7 @@ int authtype_requires_creds(const char *authtype)
>                 return 1;
>         return 0;
>  }
> +#endif
>
>  /*
>   *  Returns:
> @@ -1056,6 +1061,7 @@ auth_fail:
>                 }
>         } else if (auth_required == LDAP_AUTH_REQUIRED &&
>                   (authtype && !strncmp(authtype, "EXTERNAL", 8))) {
> +#ifdef WITH_SASL
>                 ret = get_property(logopt, root, "external_cert",  &extern_cert);
>                 ret |= get_property(logopt, root, "external_key",  &extern_key);
>                 /*
> @@ -1074,6 +1080,7 @@ auth_fail:
>                         if (extern_key)
>                                 free(extern_key);
>                 }
> +#endif
>         }
>
>         /*
> @@ -1094,8 +1101,10 @@ auth_fail:
>         ctxt->secret = secret;
>         ctxt->client_princ = client_princ;
>         ctxt->client_cc = client_cc;
> +#ifdef WITH_SASL
>         ctxt->extern_cert = extern_cert;
>         ctxt->extern_key = extern_key;
> +#endif
>
>         debug(logopt, MODPREFIX
>               "ldap authentication configured with the following options:");
> @@ -1127,7 +1136,6 @@ out:
>
>         return ret;
>  }
> -#endif
>
>  /*
>   *  Take an input string as specified in the master map, and break it
> @@ -1390,10 +1398,12 @@ static void free_context(struct lookup_context
> *ctxt)
>                 defaults_free_searchdns(ctxt->sdns);
>         if (ctxt->dclist)
>                 free_dclist(ctxt->dclist);
> +#ifdef HAVE_SASL
>         if (ctxt->extern_cert)
>                 free(ctxt->extern_cert);
>         if (ctxt->extern_key)
>                 free(ctxt->extern_key);
> +#endif
>         free(ctxt);
>
>         return;
>
>
Hi Ian
  Dustin is the previous autofs maintainer for gentoo linux, I also CC
him, But not sure whether he will response (he may not active).
  Haven't looked into your patch in detail. Basically what I've done
here is refactoring his patches. Breaking into small pieces for better
review..

Dennis
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