Split non-TCP portions of the stack out into ip.[ch].

Added set_ipaddr().

3 files changed, 119 insertions, 87 deletions

diff --git a/src/proto/ip.c b/src/proto/ip.c
new file mode 100644
index 00000000..3f46377c
--- /dev/null
+++ b/src/proto/ip.c
@@ -0,0 +1,109 @@
+#include <string.h>
+#include <stdint.h>
+#include <byteswap.h>
+#include <gpxe/in.h>
+#include <gpxe/ip.h>
+#include "uip/uip.h"
+#include "uip/uip_arp.h"
+
+/** @file
+ *
+ * IP protocol
+ *
+ * The gPXE IP stack is currently implemented on top of the uIP
+ * protocol stack.  This file provides wrappers around uIP so that
+ * higher-level protocol implementations do not need to talk directly
+ * to uIP (which has a somewhat baroque API).
+ *
+ */
+
+/**
+ * Set IP address
+ *
+ */
+void set_ipaddr ( struct in_addr address ) {
+	union {
+		struct in_addr address;
+		uint16_t uip_address[2];
+	} u;
+
+	u.address = address;
+	uip_sethostaddr ( u.uip_address );
+}
+
+/**
+ * Initialise TCP/IP stack
+ *
+ */
+void init_tcpip ( void ) {
+	uip_init();
+	uip_arp_init();
+}
+
+#define UIP_HLEN ( 40 + UIP_LLH_LEN )
+
+/**
+ * Transmit TCP data
+ *
+ * This is a wrapper around netdev_transmit().  It gathers up the
+ * packet produced by uIP, and then passes it to netdev_transmit() as
+ * a single buffer.
+ */
+static void uip_transmit ( void ) {
+	uip_arp_out();
+	if ( uip_len > UIP_HLEN ) {
+		memcpy ( uip_buf + UIP_HLEN, ( void * ) uip_appdata,
+			 uip_len - UIP_HLEN );
+	}
+	netdev_transmit ( uip_buf, uip_len );
+	uip_len = 0;
+}
+
+/**
+ * Run the TCP/IP stack
+ *
+ * Call this function in a loop in order to allow TCP/IP processing to
+ * take place.  This call takes the stack through a single iteration;
+ * it will typically be used in a loop such as
+ *
+ * @code
+ *
+ * struct tcp_connection *my_connection;
+ * ...
+ * tcp_connect ( my_connection );
+ * while ( ! my_connection->finished ) {
+ *   run_tcpip();
+ * }
+ *
+ * @endcode
+ *
+ * where @c my_connection->finished is set by one of the connection's
+ * #tcp_operations methods to indicate completion.
+ */
+void run_tcpip ( void ) {
+	void *data;
+	size_t len;
+	uint16_t type;
+	int i;
+	
+	if ( netdev_poll ( 1, &data, &len ) ) {
+		/* We have data */
+		memcpy ( uip_buf, data, len );
+		uip_len = len;
+		type = ntohs ( *( ( uint16_t * ) ( uip_buf + 12 ) ) );
+		if ( type == UIP_ETHTYPE_ARP ) {
+			uip_arp_arpin();
+		} else {
+			uip_arp_ipin();
+			uip_input();
+		}
+		if ( uip_len > 0 )
+			uip_transmit();
+	} else {
+		for ( i = 0 ; i < UIP_CONNS ; i++ ) {
+			uip_periodic ( i );
+			if ( uip_len > 0 )
+				uip_transmit();
+		}
+	}
+}
diff --git a/src/proto/tcp.c b/src/proto/tcp.c
index 8c732015..e12fff7c 100644
--- a/src/proto/tcp.c
+++ b/src/proto/tcp.c
@@ -26,83 +26,6 @@
  */
 
 /**
- * Initialise TCP/IP stack
- *
- */
-void init_tcpip ( void ) {
-	uip_init();
-	uip_arp_init();
-}
-
-#define UIP_HLEN ( 40 + UIP_LLH_LEN )
-
-/**
- * Transmit TCP data
- *
- * This is a wrapper around netdev_transmit().  It gathers up the
- * packet produced by uIP, and then passes it to netdev_transmit() as
- * a single buffer.
- */
-static void uip_transmit ( void ) {
-	uip_arp_out();
-	if ( uip_len > UIP_HLEN ) {
-		memcpy ( uip_buf + UIP_HLEN, ( void * ) uip_appdata,
-			 uip_len - UIP_HLEN );
-	}
-	netdev_transmit ( uip_buf, uip_len );
-	uip_len = 0;
-}
-
-/**
- * Run the TCP/IP stack
- *
- * Call this function in a loop in order to allow TCP/IP processing to
- * take place.  This call takes the stack through a single iteration;
- * it will typically be used in a loop such as
- *
- * @code
- *
- * struct tcp_connection *my_connection;
- * ...
- * tcp_connect ( my_connection );
- * while ( ! my_connection->finished ) {
- *   run_tcpip();
- * }
- *
- * @endcode
- *
- * where @c my_connection->finished is set by one of the connection's
- * #tcp_operations methods to indicate completion.
- */
-void run_tcpip ( void ) {
-	void *data;
-	size_t len;
-	uint16_t type;
-	int i;
-	
-	if ( netdev_poll ( 1, &data, &len ) ) {
-		/* We have data */
-		memcpy ( uip_buf, data, len );
-		uip_len = len;
-		type = ntohs ( *( ( uint16_t * ) ( uip_buf + 12 ) ) );
-		if ( type == UIP_ETHTYPE_ARP ) {
-			uip_arp_arpin();
-		} else {
-			uip_arp_ipin();
-			uip_input();
-		}
-		if ( uip_len > 0 )
-			uip_transmit();
-	} else {
-		for ( i = 0 ; i < UIP_CONNS ; i++ ) {
-			uip_periodic ( i );
-			if ( uip_len > 0 )
-				uip_transmit();
-		}
-	}
-}
-
-/**
  * Open a TCP connection
  *
  * @v conn	TCP connection
diff --git a/src/proto/uip/uipopt.h b/src/proto/uip/uipopt.h
index 15070a71..811284e1 100644
--- a/src/proto/uip/uipopt.h
+++ b/src/proto/uip/uipopt.h
@@ -114,7 +114,7 @@ typedef unsigned short uip_stats_t;
  *
  * \hideinitializer
  */
-#define UIP_FIXEDADDR    1
+#define UIP_FIXEDADDR    0
 
 /**
  * Ping IP address asignment.
@@ -130,42 +130,42 @@ typedef unsigned short uip_stats_t;
  */
 #define UIP_PINGADDRCONF 0
 
-#define UIP_IPADDR0     192 /**< The first octet of the IP address of
+#define UIP_IPADDR0     0   /**< The first octet of the IP address of
 			       this uIP node, if UIP_FIXEDADDR is
 			       1. \hideinitializer */
-#define UIP_IPADDR1     168 /**< The second octet of the IP address of
+#define UIP_IPADDR1     0   /**< The second octet of the IP address of
 			       this uIP node, if UIP_FIXEDADDR is
 			       1. \hideinitializer */
 #define UIP_IPADDR2     0   /**< The third octet of the IP address of
 			       this uIP node, if UIP_FIXEDADDR is
 			       1. \hideinitializer */
-#define UIP_IPADDR3     2   /**< The fourth octet of the IP address of
+#define UIP_IPADDR3     0   /**< The fourth octet of the IP address of
 			       this uIP node, if UIP_FIXEDADDR is
 			       1. \hideinitializer */
 
-#define UIP_NETMASK0    255 /**< The first octet of the netmask of
+#define UIP_NETMASK0    0   /**< The first octet of the netmask of
 			       this uIP node, if UIP_FIXEDADDR is
 			       1. \hideinitializer */
-#define UIP_NETMASK1    255 /**< The second octet of the netmask of
+#define UIP_NETMASK1    0   /**< The second octet of the netmask of
 			       this uIP node, if UIP_FIXEDADDR is
 			       1. \hideinitializer */
-#define UIP_NETMASK2    255 /**< The third octet of the netmask of
+#define UIP_NETMASK2    0   /**< The third octet of the netmask of
 			       this uIP node, if UIP_FIXEDADDR is
 			       1. \hideinitializer */
 #define UIP_NETMASK3    0   /**< The fourth octet of the netmask of
 			       this uIP node, if UIP_FIXEDADDR is
 			       1. \hideinitializer */
 
-#define UIP_DRIPADDR0   192 /**< The first octet of the IP address of
+#define UIP_DRIPADDR0   0   /**< The first octet of the IP address of
 			       the default router, if UIP_FIXEDADDR is
 			       1. \hideinitializer */
-#define UIP_DRIPADDR1   168 /**< The second octet of the IP address of
+#define UIP_DRIPADDR1   0   /**< The second octet of the IP address of
 			       the default router, if UIP_FIXEDADDR is
 			       1. \hideinitializer */
 #define UIP_DRIPADDR2   0   /**< The third octet of the IP address of
 			       the default router, if UIP_FIXEDADDR is
 			       1. \hideinitializer */
-#define UIP_DRIPADDR3   1   /**< The fourth octet of the IP address of
+#define UIP_DRIPADDR3   0   /**< The fourth octet of the IP address of
 			       the default router, if UIP_FIXEDADDR is
 			       1. \hideinitializer */