diff options
Diffstat (limited to 'servers/slapd/overlays/auditlog.c')
| -rw-r--r-- | servers/slapd/overlays/auditlog.c | 240 |
1 files changed, 240 insertions, 0 deletions
diff --git a/servers/slapd/overlays/auditlog.c b/servers/slapd/overlays/auditlog.c new file mode 100644 index 0000000..b98aea1 --- /dev/null +++ b/servers/slapd/overlays/auditlog.c @@ -0,0 +1,240 @@ +/* auditlog.c - log modifications for audit/history purposes */ +/* $OpenLDAP$ */ +/* This work is part of OpenLDAP Software <http://www.openldap.org/>. + * + * Copyright 2005-2021 The OpenLDAP Foundation. + * Portions copyright 2004-2005 Symas Corporation. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted only as authorized by the OpenLDAP + * Public License. + * + * A copy of this license is available in the file LICENSE in the + * top-level directory of the distribution or, alternatively, at + * <http://www.OpenLDAP.org/license.html>. + */ +/* ACKNOWLEDGEMENTS: + * This work was initially developed by Symas Corp. for inclusion in + * OpenLDAP Software. This work was sponsored by Hewlett-Packard. + */ + +#include "portable.h" + +#ifdef SLAPD_OVER_AUDITLOG + +#include <stdio.h> + +#include <ac/string.h> +#include <ac/ctype.h> + +#include "slap.h" +#include "config.h" +#include "ldif.h" + +typedef struct auditlog_data { + ldap_pvt_thread_mutex_t ad_mutex; + char *ad_logfile; +} auditlog_data; + +static ConfigTable auditlogcfg[] = { + { "auditlog", "filename", 2, 2, 0, + ARG_STRING|ARG_OFFSET, + (void *)offsetof(auditlog_data, ad_logfile), + "( OLcfgOvAt:15.1 NAME 'olcAuditlogFile' " + "DESC 'Filename for auditlogging' " + "SYNTAX OMsDirectoryString )", NULL, NULL }, + { NULL, NULL, 0, 0, 0, ARG_IGNORED } +}; + +static ConfigOCs auditlogocs[] = { + { "( OLcfgOvOc:15.1 " + "NAME 'olcAuditlogConfig' " + "DESC 'Auditlog configuration' " + "SUP olcOverlayConfig " + "MAY ( olcAuditlogFile ) )", + Cft_Overlay, auditlogcfg }, + { NULL, 0, NULL } +}; + +static int fprint_ldif(FILE *f, char *name, char *val, ber_len_t len) { + char *s; + if((s = ldif_put(LDIF_PUT_VALUE, name, val, len)) == NULL) + return(-1); + fputs(s, f); + ber_memfree(s); + return(0); +} + +static int auditlog_response(Operation *op, SlapReply *rs) { + slap_overinst *on = (slap_overinst *)op->o_bd->bd_info; + auditlog_data *ad = on->on_bi.bi_private; + FILE *f; + Attribute *a; + Modifications *m; + struct berval *b, *who = NULL, peername; + char *what, *whatm, *suffix; + time_t stamp; + int i; + + if ( rs->sr_err != LDAP_SUCCESS ) return SLAP_CB_CONTINUE; + + if ( !ad->ad_logfile ) return SLAP_CB_CONTINUE; + +/* +** add or modify: use modifiersName if present +** +*/ + switch(op->o_tag) { + case LDAP_REQ_MODRDN: what = "modrdn"; break; + case LDAP_REQ_DELETE: what = "delete"; break; + case LDAP_REQ_ADD: + what = "add"; + for(a = op->ora_e->e_attrs; a; a = a->a_next) + if( a->a_desc == slap_schema.si_ad_modifiersName ) { + who = &a->a_vals[0]; + break; + } + break; + case LDAP_REQ_MODIFY: + what = "modify"; + for(m = op->orm_modlist; m; m = m->sml_next) + if( m->sml_desc == slap_schema.si_ad_modifiersName && + ( m->sml_op == LDAP_MOD_ADD || + m->sml_op == LDAP_MOD_REPLACE )) { + who = &m->sml_values[0]; + break; + } + break; + default: + return SLAP_CB_CONTINUE; + } + + suffix = op->o_bd->be_suffix[0].bv_len ? op->o_bd->be_suffix[0].bv_val : + "global"; + +/* +** note: this means requestor's dn when modifiersName is null +*/ + if ( !who ) + who = &op->o_dn; + + peername = op->o_conn->c_peer_name; + ldap_pvt_thread_mutex_lock(&ad->ad_mutex); + if((f = fopen(ad->ad_logfile, "a")) == NULL) { + ldap_pvt_thread_mutex_unlock(&ad->ad_mutex); + return SLAP_CB_CONTINUE; + } + + stamp = slap_get_time(); + fprintf(f, "# %s %ld %s%s%s %s conn=%ld\n", + what, (long)stamp, suffix, who ? " " : "", who ? who->bv_val : "", + peername.bv_val ? peername.bv_val: "", op->o_conn->c_connid); + + if ( !BER_BVISEMPTY( &op->o_conn->c_dn ) && + (!who || !dn_match( who, &op->o_conn->c_dn ))) + fprintf(f, "# realdn: %s\n", op->o_conn->c_dn.bv_val ); + + fprintf(f, "dn: %s\nchangetype: %s\n", + op->o_req_dn.bv_val, what); + + switch(op->o_tag) { + case LDAP_REQ_ADD: + for(a = op->ora_e->e_attrs; a; a = a->a_next) + if((b = a->a_vals) != NULL) + for(i = 0; b[i].bv_val; i++) + fprint_ldif(f, a->a_desc->ad_cname.bv_val, b[i].bv_val, b[i].bv_len); + break; + + case LDAP_REQ_MODIFY: + for(m = op->orm_modlist; m; m = m->sml_next) { + switch(m->sml_op & LDAP_MOD_OP) { + case LDAP_MOD_ADD: whatm = "add"; break; + case LDAP_MOD_REPLACE: whatm = "replace"; break; + case LDAP_MOD_DELETE: whatm = "delete"; break; + case LDAP_MOD_INCREMENT: whatm = "increment"; break; + default: + fprintf(f, "# MOD_TYPE_UNKNOWN:%02x\n", m->sml_op & LDAP_MOD_OP); + continue; + } + fprintf(f, "%s: %s\n", whatm, m->sml_desc->ad_cname.bv_val); + if((b = m->sml_values) != NULL) + for(i = 0; b[i].bv_val; i++) + fprint_ldif(f, m->sml_desc->ad_cname.bv_val, b[i].bv_val, b[i].bv_len); + fprintf(f, "-\n"); + } + break; + + case LDAP_REQ_MODRDN: + fprintf(f, "newrdn: %s\ndeleteoldrdn: %s\n", + op->orr_newrdn.bv_val, op->orr_deleteoldrdn ? "1" : "0"); + if(op->orr_newSup) fprintf(f, "newsuperior: %s\n", op->orr_newSup->bv_val); + break; + + case LDAP_REQ_DELETE: + /* nothing else needed */ + break; + } + + fprintf(f, "# end %s %ld\n\n", what, (long)stamp); + + fclose(f); + ldap_pvt_thread_mutex_unlock(&ad->ad_mutex); + return SLAP_CB_CONTINUE; +} + +static slap_overinst auditlog; + +static int +auditlog_db_init( + BackendDB *be, + ConfigReply *cr +) +{ + slap_overinst *on = (slap_overinst *)be->bd_info; + auditlog_data *ad = ch_calloc(1, sizeof(auditlog_data)); + + on->on_bi.bi_private = ad; + ldap_pvt_thread_mutex_init( &ad->ad_mutex ); + return 0; +} + +static int +auditlog_db_destroy( + BackendDB *be, + ConfigReply *cr +) +{ + slap_overinst *on = (slap_overinst *)be->bd_info; + auditlog_data *ad = on->on_bi.bi_private; + + ldap_pvt_thread_mutex_destroy( &ad->ad_mutex ); + free( ad->ad_logfile ); + free( ad ); + return 0; +} + +int auditlog_initialize() { + int rc; + + auditlog.on_bi.bi_type = "auditlog"; + auditlog.on_bi.bi_db_init = auditlog_db_init; + auditlog.on_bi.bi_db_destroy = auditlog_db_destroy; + auditlog.on_response = auditlog_response; + + auditlog.on_bi.bi_cf_ocs = auditlogocs; + rc = config_register_schema( auditlogcfg, auditlogocs ); + if ( rc ) return rc; + + return overlay_register(&auditlog); +} + +#if SLAPD_OVER_AUDITLOG == SLAPD_MOD_DYNAMIC && defined(PIC) +int +init_module( int argc, char *argv[] ) +{ + return auditlog_initialize(); +} +#endif + +#endif /* SLAPD_OVER_AUDITLOG */ |