static unsigned long autoPosixIds_next_available( Operation *op ) {
slap_overinst* on = (slap_overinst *)op->o_bd->bd_info;
autoPosixIds_data* ad = on->on_bi.bi_private;
Operation nop = *op;
SlapReply nrs = { REP_RESULT };
Filter* filter = NULL;
slap_callback cb = { NULL, autoPosixIds_search_cb, NULL, ad };
struct berval fstr = BER_BVNULL;
struct berval rootstr = BER_BVNULL;
int rc;
// if max uid is known don't bother searching the tree
if( ad->max_uid_number == 0 ) {
nop.o_callback = &cb;
op->o_bd->bd_info = (BackendInfo *) on->on_info;
nop.o_tag = LDAP_REQ_SEARCH;
nop.o_ctrls = NULL;
filter = str2filter( "(uidNumber=*)" );
filter2bv( filter, &fstr );
nop.ors_scope = LDAP_SCOPE_SUBTREE;
nop.ors_deref = LDAP_DEREF_NEVER;
nop.ors_slimit = -1;//SLAP_NO_LIMIT;
nop.ors_tlimit = -1;//SLAP_NO_LIMIT;
nop.ors_attrsonly = 1;
nop.ors_attrs = slap_anlist_no_attrs;
nop.ors_filter = filter;
nop.ors_filterstr = fstr;
memset( &nrs, 0, sizeof(nrs) );
nrs.sr_type = REP_RESULT;
nrs.sr_err = LDAP_SUCCESS;
nrs.sr_entry = NULL;
nrs.sr_flags |= REP_ENTRY_MUSTBEFREED;
nrs.sr_text = NULL;
nop.o_req_dn = rootstr;
nop.o_req_ndn = rootstr;
if( nop.o_bd->be_search ) {
rc = nop.o_bd->be_search( &nop, &nrs );
Debug( LDAP_DEBUG_TRACE, "%s: finished searching for entries with uidNumber\n", autoPosixIds.on_bi.bi_type, 0, 0 );
}
else {
Debug( LDAP_DEBUG_ANY, "%s: backend missing search function\n", autoPosixIds.on_bi.bi_type, 0, 0 );
}
if( filter ) filter_free( filter );
if( fstr.bv_val ) ch_free( fstr.bv_val );
}
return ++(ad->max_uid_number);
}
static int example_search(Operation *op, char *attrcontent) {
slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
example_data *ex = on->on_bi.bi_private;
Operation nop = *op;
slap_callback cb = { NULL, example_callback, NULL, NULL, ex};
SlapReply nrs = { REP_RESULT };
int rc;
Filter *filter = NULL;
struct berval fstr = BER_BVNULL;
char *buffer;
size_t len;
len = strlen(ex->principalattr) + 5;
buffer = (char *)malloc(sizeof(char) * len);
if (!buffer) {
nop.o_bd->bd_info = (BackendInfo *)(on->on_info);
send_ldap_error(&nop, &nrs, LDAP_OTHER,
"Cannot allocate memory in example_search()");
return nrs.sr_err;
}
snprintf(buffer, len, "(krbPrincipalName=%s@%s)", attrcontent, ex->exampledomain) ;
filter = str2filter(buffer);
filter2bv(filter, &fstr);
nop.o_callback = &cb;
op->o_bd->bd_info = (BackendInfo *) on->on_info;
nop.o_tag = LDAP_REQ_SEARCH;
nop.o_ctrls = NULL;
nop.ors_scope = LDAP_SCOPE_SUBTREE;
nop.ors_deref = LDAP_DEREF_NEVER;
nop.ors_slimit = SLAP_NO_LIMIT;
nop.ors_tlimit = SLAP_NO_LIMIT;
nop.ors_attrsonly = 1;
nop.ors_attrs = slap_anlist_no_attrs;
nop.ors_filter = filter;
nop.ors_filterstr = fstr;
if (nop.o_bd->be_search) rc = nop.o_bd->be_search(&nop, &nrs);
free(buffer);
if (filter) filter_free(filter);
if (fstr.bv_val) ch_free(fstr.bv_val);
return SLAP_CB_CONTINUE;
}