altcp_get_ip: added altcp_get_ip(), added default functions that only defer a call to the inner_conn (moved from tls_mbedtls to generic altcp)

src/apps/altcp_tls/altcp_tls_mbedtls.c

@@ -779,15 +779,6 @@ altcp_mbedtls_recved(struct altcp_pcb *conn, u16_t len)
   altcp_recved(conn->inner_conn, lower_recved);
 }
 
-static err_t
-altcp_mbedtls_bind(struct altcp_pcb *conn, const ip_addr_t *ipaddr, u16_t port)
-{
-  if (conn == NULL) {
-    return ERR_VAL;
-  }
-  return altcp_bind(conn->inner_conn, ipaddr, port);
-}
-
 static err_t
 altcp_mbedtls_connect(struct altcp_pcb *conn, const ip_addr_t *ipaddr, u16_t port, altcp_connected_fn connected)
 {
@@ -839,15 +830,6 @@ altcp_mbedtls_close(struct altcp_pcb *conn)
   return altcp_close(conn->inner_conn);
 }
 
-static err_t
-altcp_mbedtls_shutdown(struct altcp_pcb *conn, int shut_rx, int shut_tx)
-{
-  if (conn == NULL) {
-    return ERR_VAL;
-  }
-  return altcp_shutdown(conn->inner_conn, shut_rx, shut_tx);
-}
-
 /** Write data to a TLS connection. Calls into mbedTLS, which in turn calls into
  * @ref altcp_mbedtls_bio_send() to send the encrypted data
  */
@@ -917,15 +899,6 @@ altcp_mbedtls_bio_send(void* ctx, const unsigned char* dataptr, size_t size)
   return written;
 }
 
-static err_t
-altcp_mbedtls_output(struct altcp_pcb *conn)
-{
-  if (conn == NULL) {
-    return ERR_VAL;
-  }
-  return altcp_output(conn->inner_conn);
-}
-
 static u16_t
 altcp_mbedtls_mss(struct altcp_pcb *conn)
 {
@@ -936,32 +909,6 @@ altcp_mbedtls_mss(struct altcp_pcb *conn)
   return altcp_mss(conn->inner_conn);
 }
 
-static u16_t
-altcp_mbedtls_sndbuf(struct altcp_pcb *conn)
-{
-  if (conn == NULL) {
-    return 0;
-  }
-  return altcp_sndbuf(conn->inner_conn);
-}
-
-static u16_t
-altcp_mbedtls_sndqueuelen(struct altcp_pcb *conn)
-{
-  if (conn == NULL) {
-    return 0;
-  }
-  return altcp_sndqueuelen(conn->inner_conn);
-}
-
-static void
-altcp_mbedtls_setprio(struct altcp_pcb *conn, u8_t prio)
-{
-  if (conn != NULL) {
-    altcp_setprio(conn->inner_conn, prio);
-  }
-}
-
 static void
 altcp_mbedtls_dealloc(struct altcp_pcb *conn)
 {
@@ -977,46 +924,26 @@ altcp_mbedtls_dealloc(struct altcp_pcb *conn)
   }
 }
 
-static err_t
-altcp_mbedtls_get_tcp_addrinfo(struct altcp_pcb *conn, int local, ip_addr_t *addr, u16_t *port)
-{
-  if (conn) {
-    return altcp_get_tcp_addrinfo(conn->inner_conn, local, addr, port);
-  }
-  return ERR_VAL;
-}
-
-#ifdef LWIP_DEBUG
-static enum tcp_state
-altcp_mbedtls_dbg_get_tcp_state(struct altcp_pcb *conn)
-{
-  if (conn) {
-    return altcp_dbg_get_tcp_state(conn->inner_conn);
-  }
-  return CLOSED;
-}
-#endif
-
-
 const struct altcp_functions altcp_mbedtls_functions = {
   altcp_mbedtls_set_poll,
   altcp_mbedtls_recved,
-  altcp_mbedtls_bind,
+  altcp_default_bind,
   altcp_mbedtls_connect,
   altcp_mbedtls_listen,
   altcp_mbedtls_abort,
   altcp_mbedtls_close,
-  altcp_mbedtls_shutdown,
+  altcp_default_shutdown,
   altcp_mbedtls_write,
-  altcp_mbedtls_output,
+  altcp_default_output,
   altcp_mbedtls_mss,
-  altcp_mbedtls_sndbuf,
-  altcp_mbedtls_sndqueuelen,
-  altcp_mbedtls_setprio,
+  altcp_default_sndbuf,
+  altcp_default_sndqueuelen,
+  altcp_default_setprio,
   altcp_mbedtls_dealloc,
-  altcp_mbedtls_get_tcp_addrinfo
+  altcp_default_get_tcp_addrinfo,
+  altcp_default_get_ip
 #ifdef LWIP_DEBUG
-  ,altcp_mbedtls_dbg_get_tcp_state
+  ,altcp_default_dbg_get_tcp_state
 #endif
 };
 

src/core/altcp.c

@@ -329,6 +329,15 @@ altcp_get_tcp_addrinfo(struct altcp_pcb *conn, int local, ip_addr_t *addr, u16_t
   return ERR_VAL;
 }
 
+ip_addr_t *
+altcp_get_ip(struct altcp_pcb *conn, int local)
+{
+  if (conn && conn->fns && conn->fns->getip) {
+    return conn->fns->getip(conn, local);
+  }
+  return NULL;
+}
+
 #ifdef LWIP_DEBUG
 enum tcp_state
 altcp_dbg_get_tcp_state(struct altcp_pcb *conn)
@@ -340,4 +349,131 @@ altcp_dbg_get_tcp_state(struct altcp_pcb *conn)
 }
 #endif
 
+/* Default implementations for the "virtual" functions */
+
+void
+altcp_mbedtls_set_poll(struct altcp_pcb *conn, u8_t interval)
+{
+  if (conn && conn->inner_conn) {
+    altcp_poll(conn->inner_conn, conn->poll, interval);
+  }
+}
+
+void
+altcp_default_recved(struct altcp_pcb *conn, u16_t len)
+{
+  if (conn && conn->inner_conn) {
+    altcp_recved(conn->inner_conn, len);
+  }
+}
+
+err_t
+altcp_default_bind(struct altcp_pcb *conn, const ip_addr_t *ipaddr, u16_t port)
+{
+  if (conn && conn->inner_conn) {
+    return altcp_bind(conn->inner_conn, ipaddr, port);
+  }
+  return ERR_VAL;
+}
+
+err_t
+altcp_default_shutdown(struct altcp_pcb *conn, int shut_rx, int shut_tx)
+{
+  if (conn && conn->inner_conn) {
+    return altcp_shutdown(conn->inner_conn, shut_rx, shut_tx);
+  }
+  return ERR_VAL;
+}
+
+err_t
+altcp_default_write(struct altcp_pcb *conn, const void *dataptr, u16_t len, u8_t apiflags)
+{
+  if (conn && conn->inner_conn) {
+    return altcp_write(conn->inner_conn, dataptr, len, apiflags);
+  }
+  return ERR_VAL;
+}
+
+err_t
+altcp_default_output(struct altcp_pcb *conn)
+{
+  if (conn && conn->inner_conn) {
+    return altcp_output(conn->inner_conn);
+  }
+  return ERR_VAL;
+}
+
+u16_t
+altcp_default_mss(struct altcp_pcb *conn)
+{
+  if (conn && conn->inner_conn) {
+    return altcp_mss(conn->inner_conn);
+  }
+  return 0;
+}
+
+u16_t
+altcp_default_sndbuf(struct altcp_pcb *conn)
+{
+  if (conn && conn->inner_conn) {
+    return altcp_sndbuf(conn->inner_conn);
+  }
+  return 0;
+}
+
+u16_t
+altcp_default_sndqueuelen(struct altcp_pcb *conn)
+{
+  if (conn && conn->inner_conn) {
+    return altcp_sndqueuelen(conn->inner_conn);
+  }
+  return 0;
+}
+
+void
+altcp_default_setprio(struct altcp_pcb *conn, u8_t prio)
+{
+  if (conn && conn->inner_conn) {
+    altcp_setprio(conn->inner_conn, prio);
+  }
+}
+
+void
+altcp_default_dealloc(struct altcp_pcb *conn)
+{
+  LWIP_UNUSED_ARG(conn);
+  /* nothing to do */
+}
+
+err_t
+altcp_default_get_tcp_addrinfo(struct altcp_pcb *conn, int local, ip_addr_t *addr, u16_t *port)
+{
+  if (conn && conn->inner_conn) {
+    return altcp_get_tcp_addrinfo(conn->inner_conn, local, addr, port);
+  }
+  return ERR_VAL;
+}
+
+ip_addr_t *
+altcp_default_get_ip(struct altcp_pcb *conn, int local)
+{
+  if (conn && conn->inner_conn) {
+    return altcp_get_ip(conn->inner_conn, local);
+  }
+  return NULL;
+}
+
+
+#ifdef LWIP_DEBUG
+enum tcp_state
+altcp_default_dbg_get_tcp_state(struct altcp_pcb *conn)
+{
+  if (conn && conn->inner_conn) {
+    return altcp_dbg_get_tcp_state(conn->inner_conn);
+  }
+  return CLOSED;
+}
+#endif
+
+
 #endif /* LWIP_ALTCP */

src/core/altcp_tcp.c

@@ -354,6 +354,22 @@ altcp_tcp_get_tcp_addrinfo(struct altcp_pcb *conn, int local, ip_addr_t *addr, u
   return ERR_VAL;
 }
 
+static ip_addr_t *
+altcp_tcp_get_ip(struct altcp_pcb *conn, int local)
+{
+  if (conn) {
+    struct tcp_pcb *pcb = (struct tcp_pcb *)conn->inner_conn;
+    if (pcb) {
+      if (local) {
+        return &pcb->local_ip;
+      } else {
+        return &pcb->remote_ip;
+      }
+    }
+  }
+  return NULL;
+}
+
 #ifdef LWIP_DEBUG
 static enum tcp_state
 altcp_tcp_dbg_get_tcp_state(struct altcp_pcb *conn)
@@ -383,7 +399,8 @@ const struct altcp_functions altcp_tcp_functions = {
   altcp_tcp_sndqueuelen,
   altcp_tcp_setprio,
   altcp_tcp_dealloc,
-  altcp_tcp_get_tcp_addrinfo
+  altcp_tcp_get_tcp_addrinfo,
+  altcp_tcp_get_ip
 #ifdef LWIP_DEBUG
   ,altcp_tcp_dbg_get_tcp_state
 #endif

src/include/lwip/altcp.h

@@ -113,6 +113,7 @@ u16_t altcp_sndqueuelen(struct altcp_pcb *conn);
 void  altcp_setprio(struct altcp_pcb *conn, u8_t prio);
 
 err_t altcp_get_tcp_addrinfo(struct altcp_pcb *conn, int local, ip_addr_t *addr, u16_t *port);
+ip_addr_t *altcp_get_ip(struct altcp_pcb *conn, int local);
 
 #ifdef LWIP_DEBUG
 enum tcp_state altcp_dbg_get_tcp_state(struct altcp_pcb *conn);

src/include/lwip/priv/altcp_priv.h

@@ -79,32 +79,51 @@ typedef void  (*altcp_setprio_fn)(struct altcp_pcb *conn, u8_t prio);
 typedef void  (*altcp_dealloc_fn)(struct altcp_pcb *conn);
 
 typedef err_t (*altcp_get_tcp_addrinfo_fn)(struct altcp_pcb *conn, int local, ip_addr_t *addr, u16_t *port);
+typedef ip_addr_t *(*altcp_get_ip_fn)(struct altcp_pcb *conn, int local);
+
 #ifdef LWIP_DEBUG
 typedef enum tcp_state (*altcp_dbg_get_tcp_state_fn)(struct altcp_pcb *conn);
 #endif
 
 struct altcp_functions {
-  altcp_set_poll_fn     set_poll;
-  altcp_recved_fn       recved;
-  altcp_bind_fn         bind;
-  altcp_connect_fn      connect;
-  altcp_listen_fn       listen;
-  altcp_abort_fn        abort;
-  altcp_close_fn        close;
-  altcp_shutdown_fn     shutdown;
-  altcp_write_fn        write;
-  altcp_output_fn       output;
-  altcp_mss_fn          mss;
-  altcp_sndbuf_fn       sndbuf;
-  altcp_sndqueuelen_fn  sndqueuelen;
-  altcp_setprio_fn      setprio;
-  altcp_dealloc_fn      dealloc;
+  altcp_set_poll_fn           set_poll;
+  altcp_recved_fn             recved;
+  altcp_bind_fn               bind;
+  altcp_connect_fn            connect;
+  altcp_listen_fn             listen;
+  altcp_abort_fn              abort;
+  altcp_close_fn              close;
+  altcp_shutdown_fn           shutdown;
+  altcp_write_fn              write;
+  altcp_output_fn             output;
+  altcp_mss_fn                mss;
+  altcp_sndbuf_fn             sndbuf;
+  altcp_sndqueuelen_fn        sndqueuelen;
+  altcp_setprio_fn            setprio;
+  altcp_dealloc_fn            dealloc;
   altcp_get_tcp_addrinfo_fn   addrinfo;
+  altcp_get_ip_fn             getip;
 #ifdef LWIP_DEBUG
   altcp_dbg_get_tcp_state_fn  dbg_get_tcp_state;
 #endif
 };
 
+void altcp_default_set_poll(struct altcp_pcb *conn, u8_t interval);
+void altcp_default_recved(struct altcp_pcb *conn, u16_t len);
+err_t altcp_default_bind(struct altcp_pcb *conn, const ip_addr_t *ipaddr, u16_t port);
+err_t altcp_default_shutdown(struct altcp_pcb *conn, int shut_rx, int shut_tx);
+err_t altcp_default_write(struct altcp_pcb *conn, const void *dataptr, u16_t len, u8_t apiflags);
+err_t altcp_default_output(struct altcp_pcb *conn);
+u16_t altcp_default_mss(struct altcp_pcb *conn);
+u16_t altcp_default_sndbuf(struct altcp_pcb *conn);
+u16_t altcp_default_sndqueuelen(struct altcp_pcb *conn);
+void altcp_default_setprio(struct altcp_pcb *conn, u8_t prio);
+void altcp_default_dealloc(struct altcp_pcb *conn);
+err_t altcp_default_get_tcp_addrinfo(struct altcp_pcb *conn, int local, ip_addr_t *addr, u16_t *port);
+ip_addr_t *altcp_default_get_ip(struct altcp_pcb *conn, int local);
+#ifdef LWIP_DEBUG
+enum tcp_state altcp_default_dbg_get_tcp_state(struct altcp_pcb *conn);
+#endif
 
 #ifdef __cplusplus
 }