original files of m241

components/ip_net2-6.9/ipappl/config/ipdhcpc_example.c

@@ -0,0 +1,295 @@
+/*
+ ******************************************************************************
+ *                     INTERPEAK EXAMPLE SOURCE FILE
+ *
+ *   Document no: @(#) $Name: VXWORKS_ITER40_2019102207 $ $RCSfile: ipdhcpc_example.c,v $ $Revision: 1.11.10.4 $
+ *   $Source: /home/interpeak/CVSRoot/ipappl/config/ipdhcpc_example.c,v $
+ *   $Author: hxu0 $
+ *   $State: Exp $ $Locker:  $
+ *
+ *   INTERPEAK_COPYRIGHT_STRING
+ *   Design and implementation by Lennart Bang <lob@interpeak.se>
+ ******************************************************************************
+ */
+
+/*
+modification history
+--------------------
+01h,03Aug10,rjq  New file for Networking Configuration VSB restructuring.
+01g,04sep09,h_s  Fix the callback compile error when using gnu.
+01f,02oct09,spw  Declare option, reply callback only if param not null.
+01e,02dec08,spw  Fix WIND00146283 and add REPLY_CB_EVENT_OFFER case
+01d,04jun08,spw  Change Syslog facility, cleanup
+01c,11oct07,uol  Defect WIND00107491, add DHCP capabilities in bootrom.
+01b,03jan07,kch  Updated CVS revision log entry for Jan 03 code drop.
+01a,11dec06,kch  Integrated to VxWorks build infrastructure.
+*/
+
+/*
+ ****************************************************************************
+ * 1                    DESCRIPTION
+ ****************************************************************************
+ */
+
+/*
+ ****************************************************************************
+ * 2                    CONFIGURATION
+ ****************************************************************************
+ */
+
+#include "ipdhcpc_config.h"
+#include "ipcom_config.h"
+
+/*
+ ****************************************************************************
+ * 3                    INCLUDE FILES
+ ****************************************************************************
+ */
+
+#ifdef IPCOM_USE_CLIB_PROTO
+#undef IPCOM_USE_CLIB_PROTO
+#endif
+#include <ipcom_type.h>
+#include <ipcom_cstyle.h>
+#include <ipcom_err.h>
+#include <ipcom_shell.h>
+#include <ipcom_syslog.h>
+#include <ipdhcpc.h>
+
+
+/*
+ ****************************************************************************
+ * 4                    DEFINES
+ ****************************************************************************
+ */
+
+#if defined(IP_WB_BUILD) || defined(INCLUDE_BOOT_DHCPC)
+IP_EXTERN FUNCPTR _ipdhcpc_callback_hook;
+#endif
+
+/* typedef to make compiler happy... */
+typedef Ip_err (*ipdhcpc_option_cb)(Ipdhcpc_handle *handle, Ip_u8 *option);
+
+#if DHCPC_INSTALL_OPTION_CALLBACK_HOOK == TRUE
+    /*
+     * forward declarations for the user-defined dhcp client callback hooks
+     * to satisfy the compiler.
+     */
+    #ifdef DHCPC_OPTION_CALLBACK_HOOK
+    Ip_err DHCPC_OPTION_CALLBACK_HOOK (Ipdhcpc_handle *, Ip_u8 *);
+    #endif
+#else
+    /*
+     * DHCPC_OPTION_CALLBACK_HOOK is applicable only if
+     * DHCPC_INSTALL_OPTION_CALLBACK_HOOK is set to TRUE. Explicitly re-define
+     * these hooks to NULL so that we don't get compiler errors
+     */
+    #undef DHCPC_OPTION_CALLBACK_HOOK
+    #define DHCPC_OPTION_CALLBACK_HOOK IP_NULL
+#endif /* DHCPC_INSTALL_OPTION_CALLBACK_HOOK */
+
+#if DHCPC_INSTALL_REPLY_CALLBACK_HOOK == TRUE
+    /*
+     * forward declarations for the user-defined dhcp client callback hooks
+     * to satisfy the compiler.
+     */
+	#ifdef DHCPC_REPLY_CALLBACK_HOOK
+    Ip_err DHCPC_REPLY_CALLBACK_HOOK (Ipdhcpc_handle *, int);
+	#endif
+#else
+    /*
+     * DHCPC_REPLY_CALLBACK_HOOK is applicable only if
+     * DHCPC_INSTALL_REPLY_CALLBACK_HOOK is set to TRUE. Explicitly re-define
+     * these hooks to NULL so that we don't get compiler errors
+     */
+    #undef DHCPC_REPLY_CALLBACK_HOOK
+#endif /* DHCPC_INSTALL_REPLY_CALLBACK_HOOK */
+
+
+/*
+ ****************************************************************************
+ * 5                    TYPES
+ ****************************************************************************
+ */
+
+/*
+ ****************************************************************************
+ * 6                    EXTERN PROTOTYPES
+ ****************************************************************************
+ */
+
+/*
+ ****************************************************************************
+ * 7                    LOCAL PROTOTYPES
+ ****************************************************************************
+ */
+
+Ip_err
+ipdhcpc_option_default_callback(Ipdhcpc_handle *handle, Ip_u8 *option);
+
+
+Ip_err
+ipdhcpc_reply_default_callback(Ipdhcpc_handle *handle, int event);
+
+/*
+ ****************************************************************************
+ * 8                    DATA
+ ****************************************************************************
+ */
+
+/*
+ ****************************************************************************
+ * 9                    LOCAL FUNCTIONS
+ ****************************************************************************
+ */
+
+/*
+ *****************************************************************************
+ *
+ * ipdhcpc_option_default_callback - default dhcp client callback routine
+ *
+ * This is an example implementation of the dhcp client option callback
+ * routine. It is called if no dhcp client option callback routine is
+ * assigned to the macro DHCPC_OPTION_CALLBACK_HOOK.
+ *
+ * NOMANUAL
+ */
+Ip_err
+ipdhcpc_option_default_callback(Ipdhcpc_handle *handle, Ip_u8 *option)
+{
+    (void)handle;
+
+    switch (*option)
+    {
+    case IPDHCPC_OPTCODE_VENDOR_ENCAPSULATED_OPTIONS:
+        break;
+    default:
+        break;
+    }
+
+    /* Let IPDHCPC act on option */
+    return IP_TRUE;
+}
+
+
+
+/*
+ *****************************************************************************
+ *
+ * ipdhcpc_reply_default_callback - default dhcp client callback routine
+ *
+ * This is an example implementation of the dhcp client reply callback
+ * routine. It is called if no dhcp client option callback routine is
+ * assigned to the macro DHCPC_REPLY_CALLBACK_HOOK.
+ *
+ * NOMANUAL
+ */
+
+Ip_err
+ipdhcpc_reply_default_callback(Ipdhcpc_handle *handle, int event)
+{
+
+    /* Informational only in this implementation. */
+
+    if (handle == IP_NULL)
+    	goto fail;
+
+    switch(event)
+    {
+    case IPDHCPC_REPLY_CB_EVENT_OFFER:
+
+        break;
+
+    case IPDHCPC_REPLY_CB_EVENT_ACK:
+
+        break;
+    
+    default:
+        break;
+    }
+
+    return IPCOM_SUCCESS;
+
+fail:
+   return IPCOM_ERR_FAILED;
+}
+
+
+/*****************************************************************************
+ *
+ * ipdhcpc_option_callback - dhcp client option callback routine
+ *
+ * This routine called once for each option prior to IPDHCPC is acting on the
+ * option, i.e. this callback can be used to change the contents of the DHCP
+ * server reply (caution!)
+ *
+ * .IP <option>
+ * Pointer to start of option, i.e. option[0] = Code; option[1] = Len;
+ * option[2-i] = Optional option data
+ * .IP <handle>
+ * Pointer to request handle
+ *
+ * RETURNS:
+ * IP_TRUE to let IPDHCPC act on the option (recommended) or IP_FALSE if
+ * option should be ignored by IPDHCPC.
+ *
+ * NOMANUAL
+ */
+IP_PUBLIC Ip_err
+ipdhcpc_option_callback(Ipdhcpc_handle *handle, Ip_u8 *option)
+{
+    ipdhcpc_option_cb dhcpc_cb;
+	/*eliminate warning when compiling with gnu*/
+#if defined(IP_WB_BUILD) || defined(INCLUDE_BOOT_DHCPC)
+    dhcpc_cb = (NULL!=DHCPC_OPTION_CALLBACK_HOOK) ? DHCPC_OPTION_CALLBACK_HOOK :
+               _ipdhcpc_callback_hook ? _ipdhcpc_callback_hook :
+               ipdhcpc_option_default_callback;
+#else
+    dhcpc_cb = ipdhcpc_option_default_callback;
+#endif
+
+    return dhcpc_cb(handle, option);
+}
+
+/*****************************************************************************
+ *
+ * ipdhcpc_reply_callback - dhcp client reply callback routine
+ *
+ * this callback can be used to change the contents of the DHCP
+ * server reply (caution!)
+ *
+ * .IP <handle>
+ * Pointer to ipdhcpc handle object, containing, i.e. option[0] = Code; option[1] = Len;
+ * option[2-i] = Optional option data
+ *
+ * .IP <event>
+ * The reply type (ACK, NACK, etc)
+ *
+ * RETURNS:
+ * IPCOM_SUCCESS to let IPDHCPC act on the reply (recommended) or !IPCOM_SUCCESS if
+ * reply should be declined by IPDHCPC.
+ *
+ * NOMANUAL
+ */
+IP_PUBLIC Ip_err
+ipdhcpc_reply_callback(Ipdhcpc_handle *handle, int event)
+{
+    Ipdhcpc_reply_cb dhcpc_cb;
+    /*eliminate warning when compiling with gnu*/
+#if defined(IP_WB_BUILD) && defined (DHCPC_REPLY_CALLBACK_HOOK)
+    dhcpc_cb = DHCPC_REPLY_CALLBACK_HOOK;
+#else
+    dhcpc_cb = ipdhcpc_reply_default_callback;
+#endif
+    if(dhcpc_cb != IP_NULL)
+        return dhcpc_cb(handle, event);
+    else
+        return IPCOM_SUCCESS;
+}
+
+
+/*
+ ****************************************************************************
+ *                      END OF FILE
+ ****************************************************************************
+ */