[HICN-92] Fix byte order mismatch in create listener command

Change-Id: I750b9840543cf53e0d96bd71a0765bd6345013cb
Signed-off-by: Mauro Sardara <msardara@cisco.com>

8 files changed, 128 insertions, 51 deletions

diff --git a/hicn-light/src/config/configuration.c b/hicn-light/src/config/configuration.c
index 48c26b4a2..3d25e425d 100644
--- a/hicn-light/src/config/configuration.c
+++ b/hicn-light/src/config/configuration.c
@@ -330,14 +330,14 @@ struct iovec *configuration_ProcessCreateTunnel(Configuration *config,
   if (!symbolicNameTable_Exists(config->symbolicNameTable, symbolicName)) {
     if (control->ipType == ADDR_INET) {
       source =
-          utils_AddressFromInet(&control->localIp.ipv4, &control->localPort);
+          addressFromInaddr4Port(&control->localIp.ipv4, &control->localPort);
       destination =
-          utils_AddressFromInet(&control->remoteIp.ipv4, &control->remotePort);
+          addressFromInaddr4Port(&control->remoteIp.ipv4, &control->remotePort);
     } else if (control->ipType == ADDR_INET6) {
       source =
-          utils_AddressFromInet6(&control->localIp.ipv6, &control->localPort);
+          addressFromInaddr6Port(&control->localIp.ipv6, &control->localPort);
       destination =
-          utils_AddressFromInet6(&control->remoteIp.ipv6, &control->remotePort);
+          addressFromInaddr6Port(&control->remoteIp.ipv6, &control->remotePort);
     } else {
       printf("Invalid IP type.\n");  // will generate a Nack
     }
diff --git a/hicn-light/src/config/configurationListeners.c b/hicn-light/src/config/configurationListeners.c
index 3024d7bba..8a3ecddfc 100644
--- a/hicn-light/src/config/configurationListeners.c
+++ b/hicn-light/src/config/configurationListeners.c
@@ -35,6 +35,7 @@
 #include <src/io/tcpListener.h>
 #include <src/io/udpListener.h>
 
+#include <src/utils/address.h>
 #include <src/utils/addressList.h>
 #include <src/utils/commands.h>
 #include <src/utils/utils.h>
@@ -210,6 +211,15 @@ static bool _addEther(Configuration *config, add_listener_command *control,
   return false;
 }
 
+/*
+ *  Create a new IPV4/TCP listener.
+ *
+ * @param [in,out] forwarder   The hicn-light forwarder instance
+ * @param [in] addr4           The ipv4 address in network byte order
+ * @param [in] port            The port number in network byte order
+ *
+ * return true if success, false otherwise
+ */
 static bool _setupTcpListenerOnInet(Forwarder *forwarder, ipv4_addr_t *addr4,
                                     uint16_t *port) {
   bool success = false;
@@ -217,7 +227,7 @@ static bool _setupTcpListenerOnInet(Forwarder *forwarder, ipv4_addr_t *addr4,
   struct sockaddr_in addr;
   memset(&addr, 0, sizeof(addr));
   addr.sin_family = AF_INET;
-  addr.sin_port = htons(*port);
+  addr.sin_port = *port;
   addr.sin_addr.s_addr = *addr4;
 
   ListenerOps *ops = tcpListener_CreateInet(forwarder, addr);
@@ -229,6 +239,15 @@ static bool _setupTcpListenerOnInet(Forwarder *forwarder, ipv4_addr_t *addr4,
   return success;
 }
 
+/*
+ *  Create a new IPV4/UDP listener.
+ *
+ * @param [in,out] forwarder   The hicn-light forwarder instance
+ * @param [in] addr4           The ipv4 address in network byte order
+ * @param [in] port            The port number in network byte order
+ *
+ * return true if success, false otherwise
+ */
 static bool _setupUdpListenerOnInet(Forwarder *forwarder, ipv4_addr_t *addr4,
                                     uint16_t *port) {
   bool success = false;
@@ -236,7 +255,7 @@ static bool _setupUdpListenerOnInet(Forwarder *forwarder, ipv4_addr_t *addr4,
   struct sockaddr_in addr;
   memset(&addr, 0, sizeof(addr));
   addr.sin_family = AF_INET;
-  addr.sin_port = htons(*port);
+  addr.sin_port = *port;
   addr.sin_addr.s_addr = *addr4;
 
   ListenerOps *ops = udpListener_CreateInet(forwarder, addr);
@@ -248,6 +267,15 @@ static bool _setupUdpListenerOnInet(Forwarder *forwarder, ipv4_addr_t *addr4,
   return success;
 }
 
+/*
+ *  Create a new IPV6/TCP listener.
+ *
+ * @param [in,out] forwarder   The hicn-light forwarder instance
+ * @param [in] addr6           The ipv6 address in network byte order
+ * @param [in] port            The port number in network byte order
+ *
+ * return true if success, false otherwise
+ */
 static bool _setupTcpListenerOnInet6Light(Forwarder *forwarder,
                                           ipv6_addr_t *addr6, uint16_t *port,
                                           uint32_t scopeId) {
@@ -256,7 +284,7 @@ static bool _setupTcpListenerOnInet6Light(Forwarder *forwarder,
   struct sockaddr_in6 addr;
   memset(&addr, 0, sizeof(addr));
   addr.sin6_family = AF_INET6;
-  addr.sin6_port = htons(*port);
+  addr.sin6_port = *port;
   addr.sin6_addr = *addr6;
   addr.sin6_scope_id = scopeId;
 
@@ -269,6 +297,15 @@ static bool _setupTcpListenerOnInet6Light(Forwarder *forwarder,
   return success;
 }
 
+/*
+ *  Create a new IPV6/UDP listener.
+ *
+ * @param [in,out] forwarder   The hicn-light forwarder instance
+ * @param [in] addr6           The ipv6 address in network byte order
+ * @param [in] port            The port number in network byte order
+ *
+ * return true if success, false otherwise
+ */
 static bool _setupUdpListenerOnInet6Light(Forwarder *forwarder,
                                           ipv6_addr_t *addr6, uint16_t *port) {
   bool success = false;
@@ -276,7 +313,7 @@ static bool _setupUdpListenerOnInet6Light(Forwarder *forwarder,
   struct sockaddr_in6 addr;
   memset(&addr, 0, sizeof(addr));
   addr.sin6_family = AF_INET6;
-  addr.sin6_port = htons(*port);
+  addr.sin6_port = *port;
   addr.sin6_addr = *addr6;
   addr.sin6_scope_id = 0;
 
@@ -289,6 +326,15 @@ static bool _setupUdpListenerOnInet6Light(Forwarder *forwarder,
   return success;
 }
 
+/*
+ *  Create a new HICN listener.
+ *
+ * @param [in] config   The configuration
+ * @param [in] control  The control command
+ * @param [in] port     The connection id of the command
+ *
+ * return true if success, false otherwise
+ */
 bool _addHicn(Configuration *config, add_listener_command *control,
               unsigned ingressId) {
   bool success = false;
@@ -298,7 +344,7 @@ bool _addHicn(Configuration *config, add_listener_command *control,
   switch (control->addressType) {
     case ADDR_INET: {
       localAddress =
-          utils_AddressFromInet(&control->address.ipv4, &control->port);
+          addressFromInaddr4Port(&control->address.ipv4, &control->port);
       success = _setupHicnListenerOnInet4(configuration_GetForwarder(config),
                                           symbolic, localAddress);
       break;
@@ -306,7 +352,7 @@ bool _addHicn(Configuration *config, add_listener_command *control,
 
     case ADDR_INET6: {
       localAddress =
-          utils_AddressFromInet6(&control->address.ipv6, &control->port);
+          addressFromInaddr6Port(&control->address.ipv6, &control->port);
       success = _setupHicnListenerOnInet6(configuration_GetForwarder(config),
                                           symbolic, localAddress);
       break;
@@ -449,12 +495,12 @@ struct iovec *configurationListeners_AddPunting(Configuration *config,
   bool success = false;
 
   if (control->addressType == ADDR_INET) {
-    Address *address = utils_AddressFromInet(&control->address.ipv4, &port);
+    Address *address = addressFromInaddr4Port(&control->address.ipv4, &port);
     Punting *punting = puntingCreate(symbolicOrConnid, address, len);
     success = _AddPuntingInet(config, punting, ingressId);
     addressDestroy(&address);
   } else if (control->addressType == ADDR_INET6) {
-    Address *address = utils_AddressFromInet6(&control->address.ipv6, &port);
+    Address *address = addressFromInaddr6Port(&control->address.ipv6, &port);
     Punting *punting = puntingCreate(symbolicOrConnid, address, len);
     success = _AddPuntingInet6(config, punting, ingressId);
     addressDestroy(&address);
@@ -536,6 +582,10 @@ void configurationListeners_SetutpLocalIPv4(const Configuration *config,
                                             uint16_t port) {
   Forwarder *forwarder = configuration_GetForwarder(config);
   in_addr_t addr = inet_addr("127.0.0.1");
-  _setupUdpListenerOnInet(forwarder, (ipv4_addr_t *)&(addr), &port);
-  _setupTcpListenerOnInet(forwarder, (ipv4_addr_t *)&(addr), &port);
+  uint16_t network_byte_order_port = htons(port);
+
+  _setupUdpListenerOnInet(forwarder, (ipv4_addr_t *)&(addr),
+                          &network_byte_order_port);
+  _setupTcpListenerOnInet(forwarder, (ipv4_addr_t *)&(addr),
+                          &network_byte_order_port);
 }
diff --git a/hicn-light/src/config/configurationListeners.h b/hicn-light/src/config/configurationListeners.h
index c97617d81..25d40e27e 100644
--- a/hicn-light/src/config/configurationListeners.h
+++ b/hicn-light/src/config/configurationListeners.h
@@ -54,6 +54,15 @@ bool configurationListeners_Remove(const Configuration *config);
 
 // light functions
 
+/**
+ * Add new listener.
+ *
+ * @param request The request coming from hicnLightControl or the
+ *                configuration file. The bytes in the request are
+ *                ordered following the network byte order convention.
+ *
+ * @param ingressId The connection id of the incoming request.
+ */
 struct iovec *configurationListeners_Add(Configuration *config,
                                          struct iovec *request,
                                          unsigned ingressId);
diff --git a/hicn-light/src/config/controlAddListener.c b/hicn-light/src/config/controlAddListener.c
index 03900a861..2cabfd035 100644
--- a/hicn-light/src/config/controlAddListener.c
+++ b/hicn-light/src/config/controlAddListener.c
@@ -111,7 +111,7 @@ static CommandReturn _CreateListener(CommandParser *parser, CommandOps *ops,
   // Fill remaining payload fields
   addListenerCommand->listenerMode = mode;
   addListenerCommand->connectionType = type;
-  addListenerCommand->port = (uint16_t)atoi(port);
+  addListenerCommand->port = htons((uint16_t)atoi(port));
   strcpy(addListenerCommand->symbolic, symbolic);
 
   // send message and receive response
diff --git a/hicn-light/src/utils/address.c b/hicn-light/src/utils/address.c
index ee1167de0..a59c6a59d 100644
--- a/hicn-light/src/utils/address.c
+++ b/hicn-light/src/utils/address.c
@@ -119,6 +119,36 @@ Address *addressCreateFromInet6(struct sockaddr_in6 *addr_in6) {
   return result;
 }
 
+Address *addressFromInaddr4Port(in_addr_t *addr4, in_port_t *port) {
+  struct sockaddr_in addr;
+  memset(&addr, 0, sizeof(addr));
+
+  // We assume address and port are already written in memory in network byte
+  // order
+  addr.sin_family = AF_INET;
+  addr.sin_port = *port;
+  addr.sin_addr.s_addr = *addr4;
+
+  Address *result = addressCreateFromInet(&addr);
+  return result;
+}
+
+Address *addressFromInaddr6Port(struct in6_addr *addr6, in_port_t *port) {
+  struct sockaddr_in6 addr;
+  memset(&addr, 0, sizeof(addr));
+  addr.sin6_family = AF_INET6;
+
+  // We assume address and port are already written in memory in network byte
+  // order
+  addr.sin6_port = *port;
+  addr.sin6_addr = *addr6;
+  addr.sin6_scope_id = 0;
+  // Other 2 fields: scope_id and flowinfo, do not know what to put inside.
+
+  Address *result = addressCreateFromInet6(&addr);
+  return result;
+}
+
 Address *addressCreateFromLink(const uint8_t *linkaddr, size_t length) {
   parcAssertNotNull(linkaddr, "Parameter must be non-null");
 
diff --git a/hicn-light/src/utils/address.h b/hicn-light/src/utils/address.h
index d8b0efcab..ca3141ede 100644
--- a/hicn-light/src/utils/address.h
+++ b/hicn-light/src/utils/address.h
@@ -144,6 +144,30 @@ Address *addressCreateFromInet(struct sockaddr_in *addr_in);
 Address *addressCreateFromInet6(struct sockaddr_in6 *addr_in6);
 
 /**
+ * Convert an internet address family (IPv4) to the address format used by the
+ * Fwd.
+ *
+ * @param [in] addr4    IPV4 address in *Network byte order*
+ * @param [in] port     Port number in *Network byte order*
+ *
+ * @return  A new instance of `Address` that must eventually be destroyed by
+ * calling {@link addressDestroy}()
+ */
+Address *addressFromInaddr4Port(in_addr_t *addr4, in_port_t *port);
+
+/**
+ * Convert an internet address family (IPv6) to the address format used by the
+ * Fwd
+ *
+ * @param [in] addr6    IPV4 address in *Network byte order*
+ * @param [in] port     Port number in *Network byte order*
+ *
+ * @return  A new instance of `Address` that must eventually be destroyed by
+ * calling {@link addressDestroy}()
+ */
+Address *addressFromInaddr6Port(struct in6_addr *addr6, in_port_t *port);
+
+/**
  * Create a new `Address` instance, initialized from a Link address.
  *
  * User must know the link address format (i.e. token ring vs ethernet) and have
diff --git a/hicn-light/src/utils/utils.c b/hicn-light/src/utils/utils.c
index 3ab837eeb..e40b219fb 100644
--- a/hicn-light/src/utils/utils.c
+++ b/hicn-light/src/utils/utils.c
@@ -69,30 +69,6 @@ bool utils_ValidateSymbolicName(const char *symbolic) {
   return success;
 }
 
-Address *utils_AddressFromInet(in_addr_t *addr4, in_port_t *port) {
-  struct sockaddr_in addr;
-  memset(&addr, 0, sizeof(addr));
-  addr.sin_family = AF_INET;
-  addr.sin_port = *port;
-  addr.sin_addr.s_addr = *addr4;
-
-  Address *result = addressCreateFromInet(&addr);
-  return result;
-}
-
-Address *utils_AddressFromInet6(struct in6_addr *addr6, in_port_t *port) {
-  struct sockaddr_in6 addr;
-  memset(&addr, 0, sizeof(addr));
-  addr.sin6_family = AF_INET6;
-  addr.sin6_port = *port;
-  addr.sin6_addr = *addr6;
-  addr.sin6_scope_id = 0;
-  // Other 2 fields: scope_id and flowinfo, do not know what to put inside.
-
-  Address *result = addressCreateFromInet6(&addr);
-  return result;
-}
-
 struct iovec *utils_CreateAck(header_control_message *header, void *payload,
                               size_t payloadLen) {
   struct iovec *response =
diff --git a/hicn-light/src/utils/utils.h b/hicn-light/src/utils/utils.h
index 1d2616941..2c4efa965 100644
--- a/hicn-light/src/utils/utils.h
+++ b/hicn-light/src/utils/utils.h
@@ -32,18 +32,6 @@ bool utils_IsNumber(const char *string);
 bool utils_ValidateSymbolicName(const char *symbolic);
 
 /**
- * Convert an internet address family (IPv4) to the address format used by the
- * Fwd
- */
-Address *utils_AddressFromInet(in_addr_t *addr4, in_port_t *port);
-
-/**
- * Convert an internet address family (IPv6) to the address format used by the
- * Fwd
- */
-Address *utils_AddressFromInet6(struct in6_addr *addr6, in_port_t *port);
-
-/**
  *Create an Ack message instance as a response of a control successfully
  *completed.
  */