1/**************************************************************************
2gPXE -  Network Bootstrap Program
3
4Literature dealing with the network protocols:
5	ARP - RFC826
6	RARP - RFC903
7	UDP - RFC768
8	BOOTP - RFC951, RFC2132 (vendor extensions)
9	DHCP - RFC2131, RFC2132 (options)
10	TFTP - RFC1350, RFC2347 (options), RFC2348 (blocksize), RFC2349 (tsize)
11	RPC - RFC1831, RFC1832 (XDR), RFC1833 (rpcbind/portmapper)
12
13**************************************************************************/
14
15FILE_LICENCE ( GPL2_OR_LATER );
16
17#include <stdio.h>
18#include <gpxe/init.h>
19#include <gpxe/features.h>
20#include <gpxe/shell.h>
21#include <gpxe/shell_banner.h>
22#include <gpxe/image.h>
23#include <usr/autoboot.h>
24#include <config/general.h>
25
26#define NORMAL	"\033[0m"
27#define BOLD	"\033[1m"
28#define CYAN	"\033[36m"
29
30/**
31 * Main entry point
32 *
33 * @ret rc		Return status code
34 */
35__asmcall int main ( void ) {
36	struct feature *feature;
37	struct image *image;
38
39	/* Some devices take an unreasonably long time to initialise */
40	printf ( PRODUCT_SHORT_NAME " initialising devices...\n" );
41
42	initialise();
43	startup();
44
45	/*
46	 * Print welcome banner
47	 *
48	 *
49	 * If you wish to brand this build of gPXE, please do so by
50	 * defining the string PRODUCT_NAME in config/general.h.
51	 *
52	 * While nothing in the GPL prevents you from removing all
53	 * references to gPXE or http://etherboot.org, we prefer you
54	 * not to do so.
55	 *
56	 */
57	printf ( NORMAL "\n\n" PRODUCT_NAME "\n" BOLD "gPXE " VERSION
58		 NORMAL " -- Open Source Boot Firmware -- "
59		 CYAN "http://etherboot.org" NORMAL "\n"
60		 "Features:" );
61	for_each_table_entry ( feature, FEATURES )
62		printf ( " %s", feature->name );
63	printf ( "\n" );
64
65	/* Prompt for shell */
66	if ( shell_banner() ) {
67		/* User wants shell; just give them a shell */
68		shell();
69	} else {
70		/* User doesn't want shell; load and execute the first
71		 * image, or autoboot() if we have no images.  If
72		 * booting fails for any reason, offer a second chance
73		 * to enter the shell for diagnostics.
74		 */
75		if ( have_images() ) {
76			for_each_image ( image ) {
77				image_exec ( image );
78				break;
79			}
80		} else {
81			autoboot();
82		}
83
84		if ( shell_banner() )
85			shell();
86	}
87
88	shutdown ( SHUTDOWN_EXIT | shutdown_exit_flags );
89
90	return 0;
91}
92