git.sur5r.net Git - openldap/blob - contrib/slapd-modules/nssov/pam.c

   1 /* pam.c - pam processing routines */
   2 /* $OpenLDAP$ */
   3 /*
   4  * Copyright 2009 by Howard Chu, Symas Corp.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted only as authorized by the OpenLDAP
   9  * Public License.
  10  *
  11  * A copy of this license is available in the file LICENSE in the
  12  * top-level directory of the distribution or, alternatively, at
  13  * <http://www.OpenLDAP.org/license.html>.
  14  */
  15
  16 #include "nssov.h"
  17 #include "lutil.h"
  18
  19 static int ppolicy_cid;
  20 static AttributeDescription *ad_loginStatus;
  21
  22 const char *at_loginStatus =
  23         "( 1.3.6.1.4.1.4745.1.20.1 "
  24         "NAME ( 'loginStatus' ) "
  25         "DESC 'Currently logged in sessions for a user' "
  26         "EQUALITY caseIgnoreMatch "
  27         "SUBSTR caseIgnoreSubstringsMatch "
  28         "ORDERING caseIgnoreOrderingMatch "
  29         "SYNTAX OMsDirectoryString "
  30         "USAGE directoryOperation )";
  31
  32 struct paminfo {
  33         struct berval uid;
  34         struct berval dn;
  35         struct berval svc;
  36         struct berval pwd;
  37         int authz;
  38         struct berval msg;
  39 };
  40
  41 static int pam_bindcb(
  42         Operation *op, SlapReply *rs)
  43 {
  44         struct paminfo *pi = op->o_callback->sc_private;
  45         LDAPControl *ctrl = ldap_control_find(LDAP_CONTROL_PASSWORDPOLICYRESPONSE,
  46                 rs->sr_ctrls, NULL);
  47         if (ctrl) {
  48                 LDAP *ld;
  49                 ber_int_t expire, grace;
  50                 LDAPPasswordPolicyError error;
  51
  52                 ldap_create(&ld);
  53                 if (ld) {
  54                         int rc = ldap_parse_passwordpolicy_control(ld,ctrl,
  55                                 &expire,&grace,&error);
  56                         if (rc == LDAP_SUCCESS) {
  57                                 if (expire >= 0) {
  58                                         char *unit = "seconds";
  59                                         if (expire > 60) {
  60                                                 expire /= 60;
  61                                                 unit = "minutes";
  62                                         }
  63                                         if (expire > 60) {
  64                                                 expire /= 60;
  65                                                 unit = "hours";
  66                                         }
  67                                         if (expire > 24) {
  68                                                 expire /= 24;
  69                                                 unit = "days";
  70                                         }
  71 #if 0   /* Who warns about expiration so far in advance? */
  72                                         if (expire > 7) {
  73                                                 expire /= 7;
  74                                                 unit = "weeks";
  75                                         }
  76                                         if (expire > 4) {
  77                                                 expire /= 4;
  78                                                 unit = "months";
  79                                         }
  80                                         if (expire > 12) {
  81                                                 expire /= 12;
  82                                                 unit = "years";
  83                                         }
  84 #endif
  85                                         pi->msg.bv_len = sprintf(pi->msg.bv_val,
  86                                                 "\nWARNING: Password expires in %d %s\n", expire, unit);
  87                                 } else if (grace > 0) {
  88                                         pi->msg.bv_len = sprintf(pi->msg.bv_val,
  89                                                 "Password expired; %d grace logins remaining",
  90                                                 grace);
  91                                         pi->authz = NSLCD_PAM_NEW_AUTHTOK_REQD;
  92                                 } else if (error != PP_noError) {
  93                                         ber_str2bv(ldap_passwordpolicy_err2txt(error), 0, 0,
  94                                                 &pi->msg);
  95                                         switch (error) {
  96                                         case PP_passwordExpired:
  97                                                 /* report this during authz */
  98                                                 rs->sr_err = LDAP_SUCCESS;
  99                                                 /* fallthru */
 100                                         case PP_changeAfterReset:
 101                                                 pi->authz = NSLCD_PAM_NEW_AUTHTOK_REQD;
 102                                         }
 103                                 }
 104                         }
 105                         ldap_ld_free(ld,0,NULL,NULL);
 106                 }
 107         }
 108         return LDAP_SUCCESS;
 109 }
 110
 111 int pam_do_bind(nssov_info *ni,TFILE *fp,Operation *op,
 112         struct paminfo *pi)
 113 {
 114         int rc;
 115         slap_callback cb = {0};
 116         SlapReply rs = {REP_RESULT};
 117         struct berval sdn;
 118
 119         pi->msg.bv_val = pi->pwd.bv_val;
 120         pi->msg.bv_len = 0;
 121         pi->authz = NSLCD_PAM_SUCCESS;
 122         BER_BVZERO(&pi->dn);
 123
 124         if (!isvalidusername(&pi->uid)) {
 125                 Debug(LDAP_DEBUG_ANY,"nssov_pam_do_bind(%s): invalid user name\n",
 126                         pi->uid.bv_val,0,0);
 127                 rc = NSLCD_PAM_USER_UNKNOWN;
 128                 goto finish;
 129         }
 130
 131         if (ni->ni_pam_opts & NI_PAM_SASL2DN) {
 132                 int hlen = global_host_bv.bv_len;
 133
 134                 /* cn=<service>+uid=<user>,cn=<host>,cn=pam,cn=auth */
 135                 sdn.bv_len = pi->uid.bv_len + pi->svc.bv_len + hlen +
 136                         STRLENOF( "cn=+uid=,cn=,cn=pam,cn=auth" );
 137                 sdn.bv_val = op->o_tmpalloc( sdn.bv_len + 1, op->o_tmpmemctx );
 138                 sprintf(sdn.bv_val, "cn=%s+uid=%s,cn=%s,cn=pam,cn=auth",
 139                         pi->svc.bv_val, pi->uid.bv_val, global_host_bv.bv_val);
 140                 slap_sasl2dn(op, &sdn, &pi->dn, 0);
 141                 op->o_tmpfree( sdn.bv_val, op->o_tmpmemctx );
 142         }
 143
 144         /* If no luck, do a basic uid search */
 145         if (BER_BVISEMPTY(&pi->dn) && (ni->ni_pam_opts & NI_PAM_UID2DN)) {
 146                 nssov_uid2dn(op, ni, &pi->uid, &pi->dn);
 147                 if (!BER_BVISEMPTY(&pi->dn)) {
 148                         sdn = pi->dn;
 149                         dnNormalize( 0, NULL, NULL, &sdn, &pi->dn, op->o_tmpmemctx );
 150                 }
 151         }
 152         BER_BVZERO(&sdn);
 153         if (BER_BVISEMPTY(&pi->dn)) {
 154                 rc = NSLCD_PAM_USER_UNKNOWN;
 155                 goto finish;
 156         }
 157
 158         if (BER_BVISEMPTY(&pi->pwd)) {
 159                 rc = NSLCD_PAM_IGNORE;
 160                 goto finish;
 161         }
 162
 163         /* Should only need to do this once at open time, but there's always
 164          * the possibility that ppolicy will get loaded later.
 165          */
 166         if (!ppolicy_cid) {
 167                 rc = slap_find_control_id(LDAP_CONTROL_PASSWORDPOLICYREQUEST,
 168                         &ppolicy_cid);
 169         }
 170         /* of course, 0 is a valid cid, but it won't be ppolicy... */
 171         if (ppolicy_cid) {
 172                 op->o_ctrlflag[ppolicy_cid] = SLAP_CONTROL_NONCRITICAL;
 173         }
 174         cb.sc_response = pam_bindcb;
 175         cb.sc_private = pi;
 176         op->o_callback = &cb;
 177         op->o_dn.bv_val[0] = 0;
 178         op->o_dn.bv_len = 0;
 179         op->o_ndn.bv_val[0] = 0;
 180         op->o_ndn.bv_len = 0;
 181         op->o_tag = LDAP_REQ_BIND;
 182         op->o_protocol = LDAP_VERSION3;
 183         op->orb_method = LDAP_AUTH_SIMPLE;
 184         op->orb_cred = pi->pwd;
 185         op->o_req_dn = pi->dn;
 186         op->o_req_ndn = pi->dn;
 187         slap_op_time( &op->o_time, &op->o_tincr );
 188         rc = op->o_bd->be_bind( op, &rs );
 189         memset(pi->pwd.bv_val,0,pi->pwd.bv_len);
 190         /* quirk: on successful bind, caller has to send result. we need
 191          * to make sure callbacks run.
 192          */
 193         if (rc == LDAP_SUCCESS)
 194                 send_ldap_result(op, &rs);
 195         switch(rs.sr_err) {
 196         case LDAP_SUCCESS: rc = NSLCD_PAM_SUCCESS; break;
 197         case LDAP_INVALID_CREDENTIALS: rc = NSLCD_PAM_AUTH_ERR; break;
 198         default: rc = NSLCD_PAM_AUTH_ERR; break;
 199         }
 200 finish:
 201         return rc;
 202 }
 203
 204 int pam_authc(nssov_info *ni,TFILE *fp,Operation *op)
 205 {
 206         int32_t tmpint32;
 207         int rc;
 208         slap_callback cb = {0};
 209         SlapReply rs = {REP_RESULT};
 210         char dnc[1024];
 211         char uidc[32];
 212         char svcc[256];
 213         char pwdc[256];
 214         struct berval sdn, dn;
 215         struct paminfo pi;
 216
 217
 218         READ_STRING_BUF2(fp,uidc,sizeof(uidc));
 219         pi.uid.bv_val = uidc;
 220         pi.uid.bv_len = tmpint32;
 221         READ_STRING_BUF2(fp,dnc,sizeof(dnc));
 222         pi.dn.bv_val = dnc;
 223         pi.dn.bv_len = tmpint32;
 224         READ_STRING_BUF2(fp,svcc,sizeof(svcc));
 225         pi.svc.bv_val = svcc;
 226         pi.svc.bv_len = tmpint32;
 227         READ_STRING_BUF2(fp,pwdc,sizeof(pwdc));
 228         pi.pwd.bv_val = pwdc;
 229         pi.pwd.bv_len = tmpint32;
 230
 231         Debug(LDAP_DEBUG_TRACE,"nssov_pam_authc(%s)\n",pi.uid.bv_val,0,0);
 232
 233         rc = pam_do_bind(ni, fp, op, &pi);
 234
 235 finish:
 236         WRITE_INT32(fp,NSLCD_VERSION);
 237         WRITE_INT32(fp,NSLCD_ACTION_PAM_AUTHC);
 238         WRITE_INT32(fp,NSLCD_RESULT_SUCCESS);
 239         WRITE_BERVAL(fp,&pi.uid);
 240         WRITE_BERVAL(fp,&pi.dn);
 241         WRITE_INT32(fp,rc);
 242         WRITE_INT32(fp,pi.authz);       /* authz */
 243         WRITE_BERVAL(fp,&pi.msg);       /* authzmsg */
 244         return 0;
 245 }
 246
 247 static struct berval grpmsg =
 248         BER_BVC("Access denied by group check");
 249 static struct berval hostmsg =
 250         BER_BVC("Access denied for this host");
 251 static struct berval svcmsg =
 252         BER_BVC("Access denied for this service");
 253 static struct berval uidmsg =
 254         BER_BVC("Access denied by UID check");
 255
 256 int pam_authz(nssov_info *ni,TFILE *fp,Operation *op)
 257 {
 258         struct berval dn, uid, svc;
 259         struct berval authzmsg = BER_BVNULL;
 260         int32_t tmpint32;
 261         char dnc[1024];
 262         char uidc[32];
 263         char svcc[256];
 264         int rc = NSLCD_PAM_SUCCESS;
 265         Entry *e = NULL;
 266         Attribute *a;
 267         SlapReply rs = {REP_RESULT};
 268         slap_callback cb = {0};
 269
 270         READ_STRING_BUF2(fp,uidc,sizeof(uidc));
 271         uid.bv_val = uidc;
 272         uid.bv_len = tmpint32;
 273         READ_STRING_BUF2(fp,dnc,sizeof(dnc));
 274         dn.bv_val = dnc;
 275         dn.bv_len = tmpint32;
 276         READ_STRING_BUF2(fp,svcc,sizeof(svcc));
 277         svc.bv_val = svcc;
 278         svc.bv_len = tmpint32;
 279
 280         Debug(LDAP_DEBUG_TRACE,"nssov_pam_authz(%s)\n",dn.bv_val,0,0);
 281
 282         /* We don't do authorization if they weren't authenticated by us */
 283         if (BER_BVISEMPTY(&dn)) {
 284                 rc = NSLCD_PAM_USER_UNKNOWN;
 285                 goto finish;
 286         }
 287
 288         /* See if they have access to the host and service */
 289         if ((ni->ni_pam_opts & NI_PAM_HOSTSVC) && nssov_pam_svc_ad) {
 290                 AttributeAssertion ava = ATTRIBUTEASSERTION_INIT;
 291                 struct berval hostdn = BER_BVNULL;
 292                 struct berval odn = op->o_ndn;
 293                 op->o_dn = dn;
 294                 op->o_ndn = dn;
 295                 {
 296                         nssov_mapinfo *mi = &ni->ni_maps[NM_host];
 297                         char fbuf[1024];
 298                         struct berval filter = {sizeof(fbuf),fbuf};
 299                         SlapReply rs2 = {REP_RESULT};
 300
 301                         /* Lookup the host entry */
 302                         nssov_filter_byname(mi,0,&global_host_bv,&filter);
 303                         cb.sc_private = &hostdn;
 304                         cb.sc_response = nssov_name2dn_cb;
 305                         op->o_callback = &cb;
 306                         op->o_req_dn = mi->mi_base;
 307                         op->o_req_ndn = mi->mi_base;
 308                         op->ors_scope = mi->mi_scope;
 309                         op->ors_filterstr = filter;
 310                         op->ors_filter = str2filter_x(op, filter.bv_val);
 311                         op->ors_attrs = slap_anlist_no_attrs;
 312                         op->ors_tlimit = SLAP_NO_LIMIT;
 313                         op->ors_slimit = 2;
 314                         rc = op->o_bd->be_search(op, &rs2);
 315                         filter_free_x(op, op->ors_filter, 1);
 316
 317                         if (BER_BVISEMPTY(&hostdn) &&
 318                                 !BER_BVISEMPTY(&ni->ni_pam_defhost)) {
 319                                 filter.bv_len = sizeof(fbuf);
 320                                 filter.bv_val = fbuf;
 321                                 memset(&rs2, 0, sizeof(rs2));
 322                                 rs2.sr_type = REP_RESULT;
 323                                 nssov_filter_byname(mi,0,&ni->ni_pam_defhost,&filter);
 324                                 op->ors_filterstr = filter;
 325                                 op->ors_filter = str2filter_x(op, filter.bv_val);
 326                                 rc = op->o_bd->be_search(op, &rs2);
 327                                 filter_free_x(op, op->ors_filter, 1);
 328                         }
 329
 330                         /* no host entry, no default host -> deny */
 331                         if (BER_BVISEMPTY(&hostdn)) {
 332                                 rc = NSLCD_PAM_PERM_DENIED;
 333                                 authzmsg = hostmsg;
 334                                 goto finish;
 335                         }
 336                 }
 337
 338                 cb.sc_response = slap_null_cb;
 339                 cb.sc_private = NULL;
 340                 op->o_tag = LDAP_REQ_COMPARE;
 341                 op->o_req_dn = hostdn;
 342                 op->o_req_ndn = hostdn;
 343                 ava.aa_desc = nssov_pam_svc_ad;
 344                 ava.aa_value = svc;
 345                 op->orc_ava = &ava;
 346                 rc = op->o_bd->be_compare( op, &rs );
 347                 if ( rs.sr_err != LDAP_COMPARE_TRUE ) {
 348                         authzmsg = svcmsg;
 349                         rc = NSLCD_PAM_PERM_DENIED;
 350                         goto finish;
 351                 }
 352                 op->o_dn = odn;
 353                 op->o_ndn = odn;
 354         }
 355
 356         /* See if they're a member of the group */
 357         if ((ni->ni_pam_opts & NI_PAM_USERGRP) &&
 358                 !BER_BVISEMPTY(&ni->ni_pam_group_dn) &&
 359                 ni->ni_pam_group_ad) {
 360                 AttributeAssertion ava = ATTRIBUTEASSERTION_INIT;
 361                 op->o_callback = &cb;
 362                 cb.sc_response = slap_null_cb;
 363                 op->o_tag = LDAP_REQ_COMPARE;
 364                 op->o_req_dn = ni->ni_pam_group_dn;
 365                 op->o_req_ndn = ni->ni_pam_group_dn;
 366                 ava.aa_desc = ni->ni_pam_group_ad;
 367                 ava.aa_value = dn;
 368                 op->orc_ava = &ava;
 369                 rc = op->o_bd->be_compare( op, &rs );
 370                 if ( rs.sr_err != LDAP_COMPARE_TRUE ) {
 371                         authzmsg = grpmsg;
 372                         rc = NSLCD_PAM_PERM_DENIED;
 373                         goto finish;
 374                 }
 375         }
 376
 377         /* We need to check the user's entry for these bits */
 378         if ((ni->ni_pam_opts & (NI_PAM_USERHOST|NI_PAM_USERSVC)) ||
 379                 ni->ni_pam_template_ad ||
 380                 ni->ni_pam_min_uid || ni->ni_pam_max_uid ) {
 381                 rc = be_entry_get_rw( op, &dn, NULL, NULL, 0, &e );
 382                 if (rc != LDAP_SUCCESS) {
 383                         rc = NSLCD_PAM_USER_UNKNOWN;
 384                         goto finish;
 385                 }
 386         }
 387         if ((ni->ni_pam_opts & NI_PAM_USERHOST) && nssov_pam_host_ad) {
 388                 a = attr_find(e->e_attrs, nssov_pam_host_ad);
 389                 if (!a || value_find_ex( nssov_pam_host_ad,
 390                         SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH,
 391                         a->a_vals, &global_host_bv, op->o_tmpmemctx )) {
 392                         rc = NSLCD_PAM_PERM_DENIED;
 393                         authzmsg = hostmsg;
 394                         goto finish;
 395                 }
 396         }
 397         if ((ni->ni_pam_opts & NI_PAM_USERSVC) && nssov_pam_svc_ad) {
 398                 a = attr_find(e->e_attrs, nssov_pam_svc_ad);
 399                 if (!a || value_find_ex( nssov_pam_svc_ad,
 400                         SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH,
 401                         a->a_vals, &svc, op->o_tmpmemctx )) {
 402                         rc = NSLCD_PAM_PERM_DENIED;
 403                         authzmsg = svcmsg;
 404                         goto finish;
 405                 }
 406         }
 407
 408 /* from passwd.c */
 409 #define UIDN_KEY        2
 410
 411         if (ni->ni_pam_min_uid || ni->ni_pam_max_uid) {
 412                 int id;
 413                 char *tmp;
 414                 nssov_mapinfo *mi = &ni->ni_maps[NM_host];
 415                 a = attr_find(e->e_attrs, mi->mi_attrs[UIDN_KEY].an_desc);
 416                 if (!a) {
 417                         rc = NSLCD_PAM_PERM_DENIED;
 418                         authzmsg = uidmsg;
 419                         goto finish;
 420                 }
 421                 id = (int)strtol(a->a_vals[0].bv_val,&tmp,0);
 422                 if (a->a_vals[0].bv_val[0] == '\0' || *tmp != '\0') {
 423                         rc = NSLCD_PAM_PERM_DENIED;
 424                         authzmsg = uidmsg;
 425                         goto finish;
 426                 }
 427                 if ((ni->ni_pam_min_uid && id < ni->ni_pam_min_uid) ||
 428                         (ni->ni_pam_max_uid && id > ni->ni_pam_max_uid)) {
 429                         rc = NSLCD_PAM_PERM_DENIED;
 430                         authzmsg = uidmsg;
 431                         goto finish;
 432                 }
 433         }
 434
 435         if (ni->ni_pam_template_ad) {
 436                 a = attr_find(e->e_attrs, ni->ni_pam_template_ad);
 437                 if (a)
 438                         uid = a->a_vals[0];
 439                 else if (!BER_BVISEMPTY(&ni->ni_pam_template))
 440                         uid = ni->ni_pam_template;
 441         }
 442
 443 finish:
 444         WRITE_INT32(fp,NSLCD_VERSION);
 445         WRITE_INT32(fp,NSLCD_ACTION_PAM_AUTHZ);
 446         WRITE_INT32(fp,NSLCD_RESULT_SUCCESS);
 447         WRITE_BERVAL(fp,&uid);
 448         WRITE_BERVAL(fp,&dn);
 449         WRITE_INT32(fp,rc);
 450         WRITE_BERVAL(fp,&authzmsg);
 451         if (e) {
 452                 be_entry_release_r(op, e);
 453         }
 454         return 0;
 455 }
 456
 457 static int pam_sess(nssov_info *ni,TFILE *fp,Operation *op,int action)
 458 {
 459         struct berval dn, uid, svc, tty, rhost, ruser;
 460         int32_t tmpint32;
 461         char dnc[1024];
 462         char svcc[256];
 463         char uidc[32];
 464         char ttyc[32];
 465         char rhostc[256];
 466         char ruserc[32];
 467         slap_callback cb = {0};
 468         SlapReply rs = {REP_RESULT};
 469         char timebuf[LDAP_LUTIL_GENTIME_BUFSIZE];
 470         struct berval timestamp, bv[2], *nbv;
 471         time_t stamp;
 472         Modifications mod;
 473
 474         READ_STRING_BUF2(fp,uidc,sizeof(uidc));
 475         uid.bv_val = uidc;
 476         uid.bv_len = tmpint32;
 477         READ_STRING_BUF2(fp,dnc,sizeof(dnc));
 478         dn.bv_val = dnc;
 479         dn.bv_len = tmpint32;
 480         READ_STRING_BUF2(fp,svcc,sizeof(svcc));
 481         svc.bv_val = svcc;
 482         svc.bv_len = tmpint32;
 483         READ_STRING_BUF2(fp,ttyc,sizeof(ttyc));
 484         tty.bv_val = ttyc;
 485         tty.bv_len = tmpint32;
 486         READ_STRING_BUF2(fp,rhostc,sizeof(rhostc));
 487         rhost.bv_val = rhostc;
 488         rhost.bv_len = tmpint32;
 489         READ_STRING_BUF2(fp,ruserc,sizeof(ruserc));
 490         ruser.bv_val = ruserc;
 491         ruser.bv_len = tmpint32;
 492         READ_INT32(fp,stamp);
 493
 494         Debug(LDAP_DEBUG_TRACE,"nssov_pam_sess_%c(%s)\n",
 495                 action==NSLCD_ACTION_PAM_SESS_O ? 'o' : 'c', dn.bv_val,0);
 496
 497         if (!dn.bv_len) return 0;
 498
 499         slap_op_time( &op->o_time, &op->o_tincr );
 500         timestamp.bv_len = sizeof(timebuf);
 501         timestamp.bv_val = timebuf;
 502         if (action == NSLCD_ACTION_PAM_SESS_O )
 503                 stamp = op->o_time;
 504         slap_timestamp( &stamp, &timestamp );
 505         bv[0].bv_len = timestamp.bv_len + global_host_bv.bv_len + svc.bv_len +
 506                 tty.bv_len + ruser.bv_len + rhost.bv_len + STRLENOF("    (@)");
 507         bv[0].bv_val = op->o_tmpalloc( bv[0].bv_len+1, op->o_tmpmemctx );
 508         sprintf(bv[0].bv_val, "%s %s %s %s (%s@%s)",
 509                 timestamp.bv_val, global_host_bv.bv_val, svc.bv_val, tty.bv_val,
 510                 ruser.bv_val, rhost.bv_val);
 511
 512         mod.sml_numvals = 1;
 513         mod.sml_values = bv;
 514         BER_BVZERO(&bv[1]);
 515         attr_normalize( ad_loginStatus, bv, &nbv, op->o_tmpmemctx );
 516         mod.sml_nvalues = nbv;
 517         mod.sml_desc = ad_loginStatus;
 518         mod.sml_op = action == NSLCD_ACTION_PAM_SESS_O ? LDAP_MOD_ADD :
 519                 LDAP_MOD_DELETE;
 520         mod.sml_flags = SLAP_MOD_INTERNAL;
 521         mod.sml_next = NULL;
 522
 523         cb.sc_response = slap_null_cb;
 524         op->o_callback = &cb;
 525         op->o_tag = LDAP_REQ_MODIFY;
 526         op->orm_modlist = &mod;
 527         op->orm_no_opattrs = 1;
 528         op->o_req_dn = dn;
 529         op->o_req_ndn = dn;
 530         op->o_bd->be_modify( op, &rs );
 531         if ( mod.sml_next ) {
 532                 slap_mods_free( mod.sml_next, 1 );
 533         }
 534         ber_bvarray_free_x( nbv, op->o_tmpmemctx );
 535
 536         WRITE_INT32(fp,NSLCD_VERSION);
 537         WRITE_INT32(fp,action);
 538         WRITE_INT32(fp,NSLCD_RESULT_SUCCESS);
 539         WRITE_INT32(fp,op->o_time);
 540         return 0;
 541 }
 542
 543 int pam_sess_o(nssov_info *ni,TFILE *fp,Operation *op)
 544 {
 545         return pam_sess(ni,fp,op,NSLCD_ACTION_PAM_SESS_O);
 546 }
 547
 548 int pam_sess_c(nssov_info *ni,TFILE *fp,Operation *op)
 549 {
 550         return pam_sess(ni,fp,op,NSLCD_ACTION_PAM_SESS_C);
 551 }
 552
 553 int pam_pwmod(nssov_info *ni,TFILE *fp,Operation *op)
 554 {
 555         struct berval npw;
 556         int32_t tmpint32;
 557         char dnc[1024];
 558         char uidc[32];
 559         char opwc[256];
 560         char npwc[256];
 561         char svcc[256];
 562         struct paminfo pi;
 563         int rc;
 564
 565         READ_STRING_BUF2(fp,uidc,sizeof(uidc));
 566         pi.uid.bv_val = uidc;
 567         pi.uid.bv_len = tmpint32;
 568         READ_STRING_BUF2(fp,dnc,sizeof(dnc));
 569         pi.dn.bv_val = dnc;
 570         pi.dn.bv_len = tmpint32;
 571         READ_STRING_BUF2(fp,svcc,sizeof(svcc));
 572         pi.svc.bv_val = svcc;
 573         pi.svc.bv_len = tmpint32;
 574         READ_STRING_BUF2(fp,opwc,sizeof(opwc));
 575         pi.pwd.bv_val = opwc;
 576         pi.pwd.bv_len = tmpint32;
 577         READ_STRING_BUF2(fp,npwc,sizeof(npwc));
 578         npw.bv_val = npwc;
 579         npw.bv_len = tmpint32;
 580
 581         Debug(LDAP_DEBUG_TRACE,"nssov_pam_pwmod(%s), %s\n",
 582                 pi.dn.bv_val,pi.uid.bv_val,0);
 583
 584         BER_BVZERO(&pi.msg);
 585
 586         /* This is a prelim check */
 587         if (BER_BVISEMPTY(&pi.dn)) {
 588                 rc = pam_do_bind(ni,fp,op,&pi);
 589                 if (rc == NSLCD_PAM_IGNORE)
 590                         rc = NSLCD_PAM_SUCCESS;
 591         } else {
 592                 BerElementBuffer berbuf;
 593                 BerElement *ber = (BerElement *)&berbuf;
 594                 struct berval bv;
 595                 SlapReply rs = {REP_RESULT};
 596                 slap_callback cb = {0};
 597
 598                 ber_init_w_nullc(ber, LBER_USE_DER);
 599                 ber_printf(ber, "{");
 600                 if (!BER_BVISEMPTY(&pi.pwd))
 601                         ber_printf(ber, "tO", LDAP_TAG_EXOP_MODIFY_PASSWD_OLD,
 602                                 &pi.pwd);
 603                 if (!BER_BVISEMPTY(&npw))
 604                         ber_printf(ber, "tO", LDAP_TAG_EXOP_MODIFY_PASSWD_NEW,
 605                                 &npw);
 606                 ber_printf(ber, "N}");
 607                 ber_flatten2(ber, &bv, 0);
 608                 op->o_tag = LDAP_REQ_EXTENDED;
 609                 op->ore_reqoid = slap_EXOP_MODIFY_PASSWD;
 610                 op->ore_reqdata = &bv;
 611                 op->o_dn = pi.dn;
 612                 op->o_ndn = pi.dn;
 613                 op->o_callback = &cb;
 614                 op->o_conn->c_authz_backend = op->o_bd;
 615                 cb.sc_response = slap_null_cb;
 616                 op->o_bd = frontendDB;
 617                 rc = op->o_bd->be_extended(op, &rs);
 618                 if (rs.sr_text)
 619                         ber_str2bv(rs.sr_text, 0, 0, &pi.msg);
 620                 if (rc == LDAP_SUCCESS)
 621                         rc = NSLCD_PAM_SUCCESS;
 622                 else
 623                         rc = NSLCD_PAM_PERM_DENIED;
 624         }
 625         WRITE_INT32(fp,NSLCD_VERSION);
 626         WRITE_INT32(fp,NSLCD_ACTION_PAM_PWMOD);
 627         WRITE_INT32(fp,NSLCD_RESULT_SUCCESS);
 628         WRITE_BERVAL(fp,&pi.uid);
 629         WRITE_BERVAL(fp,&pi.dn);
 630         WRITE_INT32(fp,rc);
 631         WRITE_BERVAL(fp,&pi.msg);
 632         return 0;
 633 }
 634
 635 int nssov_pam_init()
 636 {
 637         int code = 0;
 638         if (!ad_loginStatus)
 639                 code = register_at( at_loginStatus, &ad_loginStatus, 0 );
 640         return code;
 641 }