1/* auditlog.c - log modifications for audit/history purposes */ 2/* $OpenLDAP$ */ 3/* This work is part of OpenLDAP Software <http://www.openldap.org/>. 4 * 5 * Copyright 2005-2011 The OpenLDAP Foundation. 6 * Portions copyright 2004-2005 Symas Corporation. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted only as authorized by the OpenLDAP 11 * Public License. 12 * 13 * A copy of this license is available in the file LICENSE in the 14 * top-level directory of the distribution or, alternatively, at 15 * <http://www.OpenLDAP.org/license.html>. 16 */ 17/* ACKNOWLEDGEMENTS: 18 * This work was initially developed by Symas Corp. for inclusion in 19 * OpenLDAP Software. This work was sponsored by Hewlett-Packard. 20 */ 21 22#include "portable.h" 23 24#ifdef SLAPD_OVER_AUDITLOG 25 26#include <stdio.h> 27 28#include <ac/string.h> 29#include <ac/ctype.h> 30 31#include "slap.h" 32#include "config.h" 33#include "ldif.h" 34 35typedef struct auditlog_data { 36 ldap_pvt_thread_mutex_t ad_mutex; 37 char *ad_logfile; 38} auditlog_data; 39 40static ConfigTable auditlogcfg[] = { 41 { "auditlog", "filename", 2, 2, 0, 42 ARG_STRING|ARG_OFFSET, 43 (void *)offsetof(auditlog_data, ad_logfile), 44 "( OLcfgOvAt:15.1 NAME 'olcAuditlogFile' " 45 "DESC 'Filename for auditlogging' " 46 "SYNTAX OMsDirectoryString )", NULL, NULL }, 47 { NULL, NULL, 0, 0, 0, ARG_IGNORED } 48}; 49 50static ConfigOCs auditlogocs[] = { 51 { "( OLcfgOvOc:15.1 " 52 "NAME 'olcAuditlogConfig' " 53 "DESC 'Auditlog configuration' " 54 "SUP olcOverlayConfig " 55 "MAY ( olcAuditlogFile ) )", 56 Cft_Overlay, auditlogcfg }, 57 { NULL, 0, NULL } 58}; 59 60static int fprint_ldif(FILE *f, char *name, char *val, ber_len_t len) { 61 char *s; 62 if((s = ldif_put(LDIF_PUT_VALUE, name, val, len)) == NULL) 63 return(-1); 64 fputs(s, f); 65 ber_memfree(s); 66 return(0); 67} 68 69static int auditlog_response(Operation *op, SlapReply *rs) { 70 slap_overinst *on = (slap_overinst *)op->o_bd->bd_info; 71 auditlog_data *ad = on->on_bi.bi_private; 72 FILE *f; 73 Attribute *a; 74 Modifications *m; 75 struct berval *b, *who = NULL, peername; 76 char *what, *whatm, *suffix; 77 time_t stamp; 78 int i; 79 80 if ( rs->sr_err != LDAP_SUCCESS ) return SLAP_CB_CONTINUE; 81 82 if ( !ad->ad_logfile ) return SLAP_CB_CONTINUE; 83 84/* 85** add or modify: use modifiersName if present 86** 87*/ 88 switch(op->o_tag) { 89 case LDAP_REQ_MODRDN: what = "modrdn"; break; 90 case LDAP_REQ_DELETE: what = "delete"; break; 91 case LDAP_REQ_ADD: 92 what = "add"; 93 for(a = op->ora_e->e_attrs; a; a = a->a_next) 94 if( a->a_desc == slap_schema.si_ad_modifiersName ) { 95 who = &a->a_vals[0]; 96 break; 97 } 98 break; 99 case LDAP_REQ_MODIFY: 100 what = "modify"; 101 for(m = op->orm_modlist; m; m = m->sml_next) 102 if( m->sml_desc == slap_schema.si_ad_modifiersName && 103 ( m->sml_op == LDAP_MOD_ADD || 104 m->sml_op == LDAP_MOD_REPLACE )) { 105 who = &m->sml_values[0]; 106 break; 107 } 108 break; 109 default: 110 return SLAP_CB_CONTINUE; 111 } 112 113 suffix = op->o_bd->be_suffix[0].bv_len ? op->o_bd->be_suffix[0].bv_val : 114 "global"; 115 116/* 117** note: this means requestor's dn when modifiersName is null 118*/ 119 if ( !who ) 120 who = &op->o_dn; 121 122 peername = op->o_conn->c_peer_name; 123 ldap_pvt_thread_mutex_lock(&ad->ad_mutex); 124 if((f = fopen(ad->ad_logfile, "a")) == NULL) { 125 ldap_pvt_thread_mutex_unlock(&ad->ad_mutex); 126 return SLAP_CB_CONTINUE; 127 } 128 129 stamp = slap_get_time(); 130 fprintf(f, "# %s %ld %s%s%s %s conn=%ld\n", 131 what, (long)stamp, suffix, who ? " " : "", who ? who->bv_val : "", 132 peername.bv_val ? peername.bv_val: "", op->o_conn->c_connid); 133 134 if ( !BER_BVISEMPTY( &op->o_conn->c_dn ) && 135 (!who || !dn_match( who, &op->o_conn->c_dn ))) 136 fprintf(f, "# realdn: %s\n", op->o_conn->c_dn.bv_val ); 137 138 fprintf(f, "dn: %s\nchangetype: %s\n", 139 op->o_req_dn.bv_val, what); 140 141 switch(op->o_tag) { 142 case LDAP_REQ_ADD: 143 for(a = op->ora_e->e_attrs; a; a = a->a_next) 144 if((b = a->a_vals) != NULL) 145 for(i = 0; b[i].bv_val; i++) 146 fprint_ldif(f, a->a_desc->ad_cname.bv_val, b[i].bv_val, b[i].bv_len); 147 break; 148 149 case LDAP_REQ_MODIFY: 150 for(m = op->orm_modlist; m; m = m->sml_next) { 151 switch(m->sml_op & LDAP_MOD_OP) { 152 case LDAP_MOD_ADD: whatm = "add"; break; 153 case LDAP_MOD_REPLACE: whatm = "replace"; break; 154 case LDAP_MOD_DELETE: whatm = "delete"; break; 155 case LDAP_MOD_INCREMENT: whatm = "increment"; break; 156 default: 157 fprintf(f, "# MOD_TYPE_UNKNOWN:%02x\n", m->sml_op & LDAP_MOD_OP); 158 continue; 159 } 160 fprintf(f, "%s: %s\n", whatm, m->sml_desc->ad_cname.bv_val); 161 if((b = m->sml_values) != NULL) 162 for(i = 0; b[i].bv_val; i++) 163 fprint_ldif(f, m->sml_desc->ad_cname.bv_val, b[i].bv_val, b[i].bv_len); 164 fprintf(f, "-\n"); 165 } 166 break; 167 168 case LDAP_REQ_MODRDN: 169 fprintf(f, "newrdn: %s\ndeleteoldrdn: %s\n", 170 op->orr_newrdn.bv_val, op->orr_deleteoldrdn ? "1" : "0"); 171 if(op->orr_newSup) fprintf(f, "newsuperior: %s\n", op->orr_newSup->bv_val); 172 break; 173 174 case LDAP_REQ_DELETE: 175 /* nothing else needed */ 176 break; 177 } 178 179 fprintf(f, "# end %s %ld\n\n", what, (long)stamp); 180 181 fclose(f); 182 ldap_pvt_thread_mutex_unlock(&ad->ad_mutex); 183 return SLAP_CB_CONTINUE; 184} 185 186static slap_overinst auditlog; 187 188static int 189auditlog_db_init( 190 BackendDB *be, 191 ConfigReply *cr 192) 193{ 194 slap_overinst *on = (slap_overinst *)be->bd_info; 195 auditlog_data *ad = ch_calloc(1, sizeof(auditlog_data)); 196 197 on->on_bi.bi_private = ad; 198 ldap_pvt_thread_mutex_init( &ad->ad_mutex ); 199 return 0; 200} 201 202static int 203auditlog_db_close( 204 BackendDB *be, 205 ConfigReply *cr 206) 207{ 208 slap_overinst *on = (slap_overinst *)be->bd_info; 209 auditlog_data *ad = on->on_bi.bi_private; 210 211 free( ad->ad_logfile ); 212 ad->ad_logfile = NULL; 213 return 0; 214} 215 216static int 217auditlog_db_destroy( 218 BackendDB *be, 219 ConfigReply *cr 220) 221{ 222 slap_overinst *on = (slap_overinst *)be->bd_info; 223 auditlog_data *ad = on->on_bi.bi_private; 224 225 ldap_pvt_thread_mutex_destroy( &ad->ad_mutex ); 226 free( ad ); 227 return 0; 228} 229 230int auditlog_initialize() { 231 int rc; 232 233 auditlog.on_bi.bi_type = "auditlog"; 234 auditlog.on_bi.bi_db_init = auditlog_db_init; 235 auditlog.on_bi.bi_db_close = auditlog_db_close; 236 auditlog.on_bi.bi_db_destroy = auditlog_db_destroy; 237 auditlog.on_response = auditlog_response; 238 239 auditlog.on_bi.bi_cf_ocs = auditlogocs; 240 rc = config_register_schema( auditlogcfg, auditlogocs ); 241 if ( rc ) return rc; 242 243 return overlay_register(&auditlog); 244} 245 246#if SLAPD_OVER_AUDITLOG == SLAPD_MOD_DYNAMIC && defined(PIC) 247int 248init_module( int argc, char *argv[] ) 249{ 250 return auditlog_initialize(); 251} 252#endif 253 254#endif /* SLAPD_OVER_AUDITLOG */ 255