Overlay Mod - AccessLog + back-ldap

[Jim Finn <jfinn@searshc.com>]

  I am in the process extending the capability of the accesslog overlay 
to include logging of the client IP address of each request/op.  I have 
successfully implemented this on 2.3.42.  The next step is to optionally 
record the IP address of the server fielding the request.  I'm 
particularly interested which server back-ldap is using to respond to 
the request.

The closest I have come to finding the back-end server is li->li_url but 
this is just the uri list as config'd in slapd.conf.  I'm hoping to find 
some assistance in determining the back-end server.

Here is the changes that have been made to 
2.3.43/servers/slapd/overlays/accesslog.c:

###BEGIN DIFF###
35d34
< #include "../back-ldap/back-ldap.h"
167c166
<     *ad_reqReferral, *ad_reqOld, *ad_reqClient, *ad_reqServer;
---
 >     *ad_reqReferral, *ad_reqOld;
321,328d319
<     { "( " LOG_SCHEMA_AT ".30 NAME 'reqClient' "
<         "DESC 'Client Source Address' "
<         "SYNTAX OMsDirectoryString "
<         "SINGLE-VALUE )", &ad_reqClient },
<     { "( " LOG_SCHEMA_AT ".31 NAME 'reqServer' "
<         "DESC 'Destination Server Address' "
<         "SYNTAX OMsDirectoryString "
<         "SINGLE-VALUE )", &ad_reqServer },
345c336
<             "reqResult $ reqMessage $ reqReferral $ reqClient $ 
reqServer) )",
---
 >             "reqResult $ reqMessage $ reqReferral ) )",
839,863d829
<     //jfinn@searshc.com: Log Client IP Address/Hostname/URI to "reqClient"
<     // attribute.
<
<     BerValue clientIP;
<     clientIP.bv_val = malloc(255);
<     strcpy(clientIP.bv_val,op->o_hdr->oh_conn->c_peer_name.bv_val);
<     strtok(clientIP.bv_val, "=");         // use strtok to sanitize 
the  string
<     clientIP.bv_val = strtok (NULL, ":"); // IP=x.x.x.x:XXXX ---> x.x.x.x
<     clientIP.bv_len = strlen (clientIP.bv_val);
<     attr_merge_one( e, ad_reqClient, &clientIP, NULL );
<
<     // end Client IP address logging
<
<     //jfinn@searshc.com: Log Server IP Address/Hostname/URI to "reqServer"
<     //    attribute for use with back-ldap backend.
<     ldapinfo_t    *ldap_info = (ldapinfo_t *)op->o_bd->be_private;
<     BerValue serverIP;
<     serverIP.bv_val = malloc(255);
<     // ldap_info->li_uri is just the URI string as config'd in slapd.conf.
<     serverIP.bv_val = ldap_info->li_uri;
<     serverIP.bv_len = strlen(serverIP.bv_val);
<     attr_merge_one( e, ad_reqServer, &serverIP, NULL );
<
<     // end Server IP address logging
<
###END DIFF###

Thanks in advance for your assistance!

Jim Finn

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