Import lwIP contrib rep

... from http://git.savannah.gnu.org/cgit/lwip/lwip-contrib.git/ into contrib/ subdir, STABLE-2_1_0_RELEASE tag lwIP contrib is now officially frozen TODO: Fix build
2018-10-02 12:17:31 +02:00
parent dd1ab2bf59
commit ac46e42aa2
310 changed files with 58603 additions and 13 deletions
--- a/contrib/apps/httpserver/httpserver-netconn.c
+++ b/contrib/apps/httpserver/httpserver-netconn.c
@@ -0,0 +1,103 @@
+
+#include "lwip/opt.h"
+#include "lwip/arch.h"
+#include "lwip/api.h"
+
+#include "httpserver-netconn.h"
+
+#if LWIP_NETCONN
+
+#ifndef HTTPD_DEBUG
+#define HTTPD_DEBUG         LWIP_DBG_OFF
+#endif
+
+static const char http_html_hdr[] = "HTTP/1.1 200 OK\r\nContent-type: text/html\r\n\r\n";
+static const char http_index_html[] = "<html><head><title>Congrats!</title></head><body><h1>Welcome to our lwIP HTTP server!</h1><p>This is a small test page, served by httpserver-netconn.</body></html>";
+
+/** Serve one HTTP connection accepted in the http thread */
+static void
+http_server_netconn_serve(struct netconn *conn)
+{
+  struct netbuf *inbuf;
+  char *buf;
+  u16_t buflen;
+  err_t err;
+  
+  /* Read the data from the port, blocking if nothing yet there. 
+   We assume the request (the part we care about) is in one netbuf */
+  err = netconn_recv(conn, &inbuf);
+  
+  if (err == ERR_OK) {
+    netbuf_data(inbuf, (void**)&buf, &buflen);
+    
+    /* Is this an HTTP GET command? (only check the first 5 chars, since
+    there are other formats for GET, and we're keeping it very simple )*/
+    if (buflen>=5 &&
+        buf[0]=='G' &&
+        buf[1]=='E' &&
+        buf[2]=='T' &&
+        buf[3]==' ' &&
+        buf[4]=='/' ) {
+      
+      /* Send the HTML header 
+             * subtract 1 from the size, since we dont send the \0 in the string
+             * NETCONN_NOCOPY: our data is const static, so no need to copy it
+       */
+      netconn_write(conn, http_html_hdr, sizeof(http_html_hdr)-1, NETCONN_NOCOPY);
+      
+      /* Send our HTML page */
+      netconn_write(conn, http_index_html, sizeof(http_index_html)-1, NETCONN_NOCOPY);
+    }
+  }
+  /* Close the connection (server closes in HTTP) */
+  netconn_close(conn);
+  
+  /* Delete the buffer (netconn_recv gives us ownership,
+   so we have to make sure to deallocate the buffer) */
+  netbuf_delete(inbuf);
+}
+
+/** The main function, never returns! */
+static void
+http_server_netconn_thread(void *arg)
+{
+  struct netconn *conn, *newconn;
+  err_t err;
+  LWIP_UNUSED_ARG(arg);
+  
+  /* Create a new TCP connection handle */
+  /* Bind to port 80 (HTTP) with default IP address */
+#if LWIP_IPV6
+  conn = netconn_new(NETCONN_TCP_IPV6);
+  netconn_bind(conn, IP6_ADDR_ANY, 80);
+#else /* LWIP_IPV6 */
+  conn = netconn_new(NETCONN_TCP);
+  netconn_bind(conn, IP_ADDR_ANY, 80);
+#endif /* LWIP_IPV6 */
+  LWIP_ERROR("http_server: invalid conn", (conn != NULL), return;);
+  
+  /* Put the connection into LISTEN state */
+  netconn_listen(conn);
+  
+  do {
+    err = netconn_accept(conn, &newconn);
+    if (err == ERR_OK) {
+      http_server_netconn_serve(newconn);
+      netconn_delete(newconn);
+    }
+  } while(err == ERR_OK);
+  LWIP_DEBUGF(HTTPD_DEBUG,
+    ("http_server_netconn_thread: netconn_accept received error %d, shutting down",
+    err));
+  netconn_close(conn);
+  netconn_delete(conn);
+}
+
+/** Initialize the HTTP server (start its thread) */
+void
+http_server_netconn_init(void)
+{
+  sys_thread_new("http_server_netconn", http_server_netconn_thread, NULL, DEFAULT_THREAD_STACKSIZE, DEFAULT_THREAD_PRIO);
+}
+
+#endif /* LWIP_NETCONN*/