altcp_tls: rename altcp_tls_new -> altcp_tls_wrap, add altcp_tls_new

The new altcp_tls_new() is a type safe version of altcp_tls_alloc()

Signed-off-by: Simon Goldschmidt <goldsimon@gmx.de>

src/apps/altcp_tls/altcp_tls_mbedtls.c

@@ -605,7 +605,7 @@ altcp_mbedtls_setup(void *conf, struct altcp_pcb *conn, struct altcp_pcb *inner_
 }
 
 struct altcp_pcb *
-altcp_tls_new(struct altcp_tls_config *config, struct altcp_pcb *inner_pcb)
+altcp_tls_wrap(struct altcp_tls_config *config, struct altcp_pcb *inner_pcb)
 {
   struct altcp_pcb *ret;
   if (inner_pcb == NULL) {

src/apps/http/altcp_proxyconnect.c

@@ -418,7 +418,7 @@ altcp_proxyconnect_tls_alloc(void *arg, u8_t ip_type)
   struct altcp_pcb *tls_pcb;
 
   proxy_pcb = altcp_proxyconnect_new_tcp(&cfg->proxy, ip_type);
-  tls_pcb = altcp_tls_new(cfg->tls_config, proxy_pcb);
+  tls_pcb = altcp_tls_wrap(cfg->tls_config, proxy_pcb);
 
   if (tls_pcb == NULL) {
     altcp_close(proxy_pcb);

src/apps/http/httpd.c

@@ -2685,10 +2685,7 @@ void
 httpd_inits(struct altcp_tls_config *conf)
 {
 #if LWIP_ALTCP_TLS
-  struct altcp_pcb *pcb_tls;
-  struct altcp_pcb *pcb_tcp = altcp_tcp_new_ip_type(IPADDR_TYPE_ANY);
-  LWIP_ASSERT("httpd_init: tcp_new failed", pcb_tcp != NULL);
-  pcb_tls = altcp_tls_new(conf, pcb_tcp);
+  struct altcp_pcb *pcb_tls = altcp_tls_new(conf, IPADDR_TYPE_ANY);
   LWIP_ASSERT("httpd_init: altcp_tls_new failed", pcb_tls != NULL);
   httpd_init_pcb(pcb_tls, HTTPD_SERVER_PORT_HTTPS);
 #else /* LWIP_ALTCP_TLS */

src/apps/mqtt/mqtt.c

@@ -1362,20 +1362,17 @@ mqtt_client_connect(mqtt_client_t *client, const ip_addr_t *ip_addr, u16_t port,
     return ERR_MEM;
   }
 
-  client->conn = altcp_tcp_new();
-  if (client->conn == NULL) {
-    return ERR_MEM;
-  }
 #if LWIP_ALTCP && LWIP_ALTCP_TLS
   if (client_info->tls_config) {
-    struct altcp_pcb *pcb_tls = altcp_tls_new(client_info->tls_config, client->conn);
-    if (pcb_tls == NULL) {
-      altcp_close(client->conn);
-      return ERR_MEM;
-    }
-    client->conn = pcb_tls;
-  }
+    client->conn = altcp_tls_new(client_info->tls_config, IP_GET_TYPE(ip_addr));
+  } else
 #endif
+  {
+    client->conn = altcp_tcp_new_ip_type(IP_GET_TYPE(ip_addr));
+  }
+  if (client->conn == NULL) {
+    return ERR_MEM;
+  }
 
   /* Set arg pointer for callbacks */
   altcp_arg(client->conn, client);

src/apps/smtp/smtp.c

@@ -460,18 +460,15 @@ smtp_setup_pcb(struct smtp_session *s, const ip_addr_t* remote_ip)
   struct altcp_pcb* pcb;
   LWIP_UNUSED_ARG(remote_ip);
 
-  pcb = altcp_tcp_new_ip_type(IP_GET_TYPE(remote_ip));
-  if (pcb != NULL) {
 #if LWIP_ALTCP && LWIP_ALTCP_TLS
-    if (smtp_server_tls_config) {
-      struct altcp_pcb *pcb_tls = altcp_tls_new(smtp_server_tls_config, pcb);
-      if (pcb_tls == NULL) {
-        altcp_close(pcb);
-        return NULL;
-      }
-      pcb = pcb_tls;
-    }
+  if (smtp_server_tls_config) {
+    pcb = altcp_tls_new(smtp_server_tls_config, IP_GET_TYPE(remote_ip));
+  } else
 #endif
+  {
+    pcb = altcp_tcp_new_ip_type(IP_GET_TYPE(remote_ip));
+  }
+  if (pcb != NULL) {
     altcp_arg(pcb, s);
     altcp_recv(pcb, smtp_tcp_recv);
     altcp_err(pcb, smtp_tcp_err);

src/core/altcp_alloc.c

@@ -58,23 +58,29 @@
 /** This standard allocator function creates an altcp pcb for
  * TLS over TCP */
 struct altcp_pcb *
-altcp_tls_alloc(void *arg, u8_t ip_type)
+altcp_tls_new(struct altcp_tls_config *config, u8_t ip_type)
 {
   struct altcp_pcb *inner_conn, *ret;
-  struct altcp_tls_config *config = (struct altcp_tls_config *)arg;
   LWIP_UNUSED_ARG(ip_type);
 
   inner_conn = altcp_tcp_new_ip_type(ip_type);
   if (inner_conn == NULL) {
     return NULL;
   }
-  ret = altcp_tls_new(config, inner_conn);
+  ret = altcp_tls_wrap(config, inner_conn);
   if (ret == NULL) {
     altcp_close(inner_conn);
   }
   return ret;
 }
 
+/** This standard allocator function creates an altcp pcb for
+ * TLS over TCP */
+struct altcp_pcb *
+altcp_tls_alloc(void *arg, u8_t ip_type)
+{
+  return altcp_tls_new((struct altcp_tls_config *)arg, ip_type);
+}
 
 #endif /* LWIP_ALTCP_TLS */
 

src/include/lwip/altcp_tls.h

@@ -85,14 +85,20 @@ struct altcp_tls_config *altcp_tls_create_config_client_2wayauth(const u8_t *ca,
 void altcp_tls_free_config(struct altcp_tls_config *conf);
 
 /** @ingroup altcp_tls
- * Create new ALTCP_TLS layer
+ * Create new ALTCP_TLS layer wrapping an existing pcb as inner connection (e.g. TLS over TCP)
  */
-struct altcp_pcb *altcp_tls_new(struct altcp_tls_config *config, struct altcp_pcb *inner_pcb);
+struct altcp_pcb *altcp_tls_wrap(struct altcp_tls_config *config, struct altcp_pcb *inner_pcb);
 
 /** @ingroup altcp_tls
- * Create new ALTCP_TLS layer
- * This allocator function fits to @ref altcp_allocator_t / @ref altcp_new.
- * 'arg' must contain a struct altcp_tls_config *.
+ * Create new ALTCP_TLS pcb and its inner tcp pcb
+ */
+struct altcp_pcb *altcp_tls_new(struct altcp_tls_config *config, u8_t ip_type);
+
+/** @ingroup altcp_tls
+ * Create new ALTCP_TLS layer pcb and its inner tcp pcb.
+ * Same as @ref altcp_tls_new but this allocator function fits to
+ * @ref altcp_allocator_t / @ref altcp_new.\n
+ 'arg' must contain a struct altcp_tls_config *.
  */
 struct altcp_pcb *altcp_tls_alloc(void *arg, u8_t ip_type);