net: Filter incoming netconsole packets by IP

[karo-tx-uboot.git] / include / net.h

diff --git a/include/net.h b/include/net.h
index a092f291bbcd643b8eda122b10b0509d1fd4b719..35393366d333b5143aefff3bd3dac7898b0c7b47 100644 (file)
--- a/include/net.h
+++ b/include/net.h
@@ -102,7 +102,14 @@ extern int eth_register(struct eth_device* dev);/* Register network device */
 extern int eth_unregister(struct eth_device *dev);/* Remove network device */
 extern void eth_try_another(int first_restart);        /* Change the device */
 extern void eth_set_current(void);             /* set nterface to ethcur var */
-extern struct eth_device *eth_get_dev(void);   /* get the current device MAC */
+/* get the current device MAC */
+static inline __attribute__((always_inline))
+struct eth_device *eth_get_dev(void)
+{
+       extern struct eth_device *eth_current;
+
+       return eth_current;
+}
 extern struct eth_device *eth_get_dev_by_name(const char *devname);
 extern struct eth_device *eth_get_dev_by_index(int index); /* get dev @ index */
 extern int eth_get_dev_index(void);            /* get the device index */
@@ -122,6 +129,23 @@ extern int eth_setenv_enetaddr(char *name, const uchar *enetaddr);
 extern int eth_getenv_enetaddr_by_index(const char *base_name, int index,
                                        uchar *enetaddr);
 
+#ifdef CONFIG_RANDOM_MACADDR
+/*
+ * The u-boot policy does not allow hardcoded ethernet addresses. Under the
+ * following circumstances a random generated address is allowed:
+ *  - in emergency cases, where you need a working network connection to set
+ *    the ethernet address.
+ *    Eg. you want a rescue boot and don't have a serial port to access the
+ *    CLI to set environment variables.
+ *
+ * In these cases, we generate a random locally administered ethernet address.
+ *
+ * Args:
+ *  enetaddr - returns 6 byte hardware address
+ */
+extern void eth_random_enetaddr(uchar *enetaddr);
+#endif
+
 extern int usb_eth_initialize(bd_t *bi);
 extern int eth_init(bd_t *bis);                        /* Initialize the device */
 extern int eth_send(void *packet, int length);    /* Send a packet */
@@ -134,6 +158,19 @@ extern int eth_rx(void);                   /* Check for received packets */
 extern void eth_halt(void);                    /* stop SCC */
 extern char *eth_get_name(void);               /* get name of current device */
 
+/* Set active state */
+static inline __attribute__((always_inline)) int eth_init_state_only(bd_t *bis)
+{
+       eth_get_dev()->state = ETH_STATE_ACTIVE;
+
+       return 0;
+}
+/* Set passive state */
+static inline __attribute__((always_inline)) void eth_halt_state_only(void)
+{
+       eth_get_dev()->state = ETH_STATE_PASSIVE;
+}
+
 /*
  * Set the hardware address for an ethernet interface based on 'eth%daddr'
  * environment variable (or just 'ethaddr' if eth_number is 0).
@@ -512,8 +549,29 @@ extern void NetReceive(uchar *, int);
 
 #ifdef CONFIG_NETCONSOLE
 void NcStart(void);
-int nc_input_packet(uchar *pkt, unsigned dest, unsigned src, unsigned len);
+int nc_input_packet(uchar *pkt, IPaddr_t src_ip, unsigned dest_port,
+       unsigned src_port, unsigned len);
+#endif
+
+static inline __attribute__((always_inline)) int eth_is_on_demand_init(void)
+{
+#ifdef CONFIG_NETCONSOLE
+       extern enum proto_t net_loop_last_protocol;
+
+       return net_loop_last_protocol != NETCONS;
+#else
+       return 1;
 #endif
+}
+
+static inline void eth_set_last_protocol(int protocol)
+{
+#ifdef CONFIG_NETCONSOLE
+       extern enum proto_t net_loop_last_protocol;
+
+       net_loop_last_protocol = protocol;
+#endif
+}
 
 /*
  * Check if autoload is enabled. If so, use either NFS or TFTP to download