diff --git a/lib/Makefile.am b/lib/Makefile.am
index 38070d9..457cf4c 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -14,7 +14,7 @@ lib_LTLIBRARIES = libsntllv2.la
 
 
 libsntllv2_la_SOURCES = \
-	connex.c sntllv2.c
+	connex.c sntllv2.c chansx.c
 
 libsntllv2_la_LDFLAGS = -Wl,--export-dynamic
 
diff --git a/lib/chansx.c b/lib/chansx.c
index 6d469dc..1b4ced3 100644
--- a/lib/chansx.c
+++ b/lib/chansx.c
@@ -43,8 +43,60 @@
 /* locally used functions */
 uint8_t _channel_open(conn_t *co, uint16_t *chid)
 {
+  chnl_t *chan;
+  uint16_t typeid = *chid; /* our type */
+  uint16_t chidx;
+  usrtc_t *rpc_list = co->rpc_list;
+  usrtc_node_t *node;
+  rpc_typed_list_t *rlist;
+  cx_rpc_list_t *rpclist;
+
+  node = usrtc_lookup(rpc_list, (void *)&typeid);
+  if(!node) return SNE_EPERM;
+  else rlist = (rpc_typed_list_t *)usrtc_node_getdata(node);
+
+  if(rlist) rpclist = rlist->rpc_list;
+  else return SNE_FAILED;
+
+  chan = malloc(sizeof(chnl_t));
+  if(!chan) return SNE_ENOMEM;
+
+  /* init channel */
+  chan->connection = co;
+  chan->rpc_list = rpclist;
+  chan->flags = 0;
+
+  pthread_mutex_lock(&co->idx_ch_lock);
+  chidx = idx_allocate(&co->idx_ch);
+  pthread_mutex_unlock(&co->idx_ch_lock);
+
+  if(chidx == IDX_INVAL) {
+    free(chan);
+    return SNE_MCHANNELS;
+  }
+
+  chan->cid = chidx;
+  co->channels[chidx] = chan;
+  *chid = chidx;
+
+  return SNE_SUCCESS;
 }
 
 uint8_t _channel_close(conn_t *co, uint16_t chid)
 {
+  chnl_t *chan;
+
+  if(chid > 512) return SNE_INVALINDEX;
+  else chan = co->channels[chid];
+
+  if(!chan) return SNE_NOSUCHCHAN;
+
+  pthread_mutex_lock(&co->idx_ch_lock);
+  idx_free(&co->idx_ch, chid);
+  co->channels[chid] = NULL;
+  pthread_mutex_unlock(&co->idx_ch_lock);
+
+  free(chan);
+
+  return SNE_SUCCESS;
 }
diff --git a/lib/internal.h b/lib/internal.h
new file mode 100644
index 0000000..4ce1281
--- /dev/null
+++ b/lib/internal.h
@@ -0,0 +1,8 @@
+#ifndef __SNTLL_INTERNAL_H__
+#define __SNTLL_INTERNAL_H__
+
+/* channel operations */
+uint8_t _channel_open(conn_t *co, uint16_t *chid);
+uint8_t _channel_close(conn_t *co, uint16_t chid);
+
+#endif /* __SNTLL_INTERNAL_H__ */
diff --git a/lib/sntllv2.c b/lib/sntllv2.c
index a5f0654..4868bbb 100644
--- a/lib/sntllv2.c
+++ b/lib/sntllv2.c
@@ -42,6 +42,8 @@
 
 #include <sntl/sntllv2.h>
 
+#include "internal.h"
+
 typedef struct __sntll_bundle_type {
   void *buf;
   conn_t *conn;