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authorH. Peter Anvin <hpa@zytor.com>2009-02-17 20:17:17 -0800
committerH. Peter Anvin <hpa@zytor.com>2009-02-17 20:17:17 -0800
commitd0c6656a62113b913948361779d6298fe76f6e61 (patch)
treeefa2541a1abae4760717c6db421ea818114ab6f7 /gpxe/src/usr
parent85b92a462dab7ce36c48614ea18314f8fc83ca9c (diff)
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Update gPXE to version 0.9.6+ 277b84c6e7d49f3cf01c855007f591de8c7cb75f
Update gPXE to version 0.9.6+, from commit 277b84c6e7d49f3cf01c855007f591de8c7cb75f in the main gPXE repository. The only differences is src/config/general.h which has a few protocols added, and src/arch/i386/prefix/boot1a.S which was called boot1a.s in the upstream repository.
Diffstat (limited to 'gpxe/src/usr')
-rw-r--r--gpxe/src/usr/aoeboot.c73
-rw-r--r--gpxe/src/usr/autoboot.c72
-rw-r--r--gpxe/src/usr/dhcpmgmt.c11
-rw-r--r--gpxe/src/usr/ifmgmt.c34
-rw-r--r--gpxe/src/usr/imgmgmt.c13
-rw-r--r--gpxe/src/usr/iscsiboot.c102
-rw-r--r--gpxe/src/usr/pxemenu.c381
7 files changed, 471 insertions, 215 deletions
diff --git a/gpxe/src/usr/aoeboot.c b/gpxe/src/usr/aoeboot.c
deleted file mode 100644
index f0e481bd..00000000
--- a/gpxe/src/usr/aoeboot.c
+++ /dev/null
@@ -1,73 +0,0 @@
-#include <stdint.h>
-#include <string.h>
-#include <stdio.h>
-#include <byteswap.h>
-#include <gpxe/aoe.h>
-#include <gpxe/ata.h>
-#include <gpxe/netdevice.h>
-#include <gpxe/settings.h>
-#include <gpxe/abft.h>
-#include <int13.h>
-#include <usr/aoeboot.h>
-
-/**
- * Guess boot network device
- *
- * @ret netdev Boot network device
- */
-static struct net_device * guess_boot_netdev ( void ) {
- struct net_device *boot_netdev;
-
- /* Just use the first network device */
- for_each_netdev ( boot_netdev ) {
- return boot_netdev;
- }
-
- return NULL;
-}
-
-int aoeboot ( const char *root_path ) {
- struct ata_device ata;
- struct int13_drive drive;
- int rc;
-
- memset ( &ata, 0, sizeof ( ata ) );
- memset ( &drive, 0, sizeof ( drive ) );
-
- printf ( "AoE booting from %s\n", root_path );
-
- /* FIXME: ugly, ugly hack */
- struct net_device *netdev = guess_boot_netdev();
-
- if ( ( rc = aoe_attach ( &ata, netdev, root_path ) ) != 0 ) {
- printf ( "Could not attach AoE device: %s\n",
- strerror ( rc ) );
- goto error_attach;
- }
- if ( ( rc = init_atadev ( &ata ) ) != 0 ) {
- printf ( "Could not initialise AoE device: %s\n",
- strerror ( rc ) );
- goto error_init;
- }
-
- /* FIXME: ugly, ugly hack */
- struct aoe_session *aoe =
- container_of ( ata.backend, struct aoe_session, refcnt );
- abft_fill_data ( aoe );
-
- drive.blockdev = &ata.blockdev;
-
- register_int13_drive ( &drive );
- printf ( "Registered as BIOS drive %#02x\n", drive.drive );
- printf ( "Booting from BIOS drive %#02x\n", drive.drive );
- rc = int13_boot ( drive.drive );
- printf ( "Boot failed\n" );
-
- printf ( "Unregistering BIOS drive %#02x\n", drive.drive );
- unregister_int13_drive ( &drive );
-
- error_init:
- aoe_detach ( &ata );
- error_attach:
- return rc;
-}
diff --git a/gpxe/src/usr/autoboot.c b/gpxe/src/usr/autoboot.c
index 326292b4..98e79a7f 100644
--- a/gpxe/src/usr/autoboot.c
+++ b/gpxe/src/usr/autoboot.c
@@ -23,14 +23,12 @@
#include <gpxe/dhcp.h>
#include <gpxe/settings.h>
#include <gpxe/image.h>
-#include <gpxe/embedded.h>
+#include <gpxe/sanboot.h>
#include <gpxe/uri.h>
#include <usr/ifmgmt.h>
#include <usr/route.h>
#include <usr/dhcpmgmt.h>
#include <usr/imgmgmt.h>
-#include <usr/iscsiboot.h>
-#include <usr/aoeboot.h>
#include <usr/autoboot.h>
/** @file
@@ -45,6 +43,12 @@
/** Shutdown flags for exit */
int shutdown_exit_flags = 0;
+/* SAN boot protocols */
+static struct sanboot_protocol sanboot_protocols[0] \
+ __table_start ( struct sanboot_protocol, sanboot_protocols );
+static struct sanboot_protocol sanboot_protocols_end[0] \
+ __table_end ( struct sanboot_protocol, sanboot_protocols );
+
/**
* Identify the boot network device
*
@@ -55,37 +59,13 @@ static struct net_device * find_boot_netdev ( void ) {
}
/**
- * Boot embedded image
- *
- * @ret rc Return status code
- */
-static int boot_embedded_image ( void ) {
- struct image *image;
- int rc;
-
- image = embedded_image();
- if ( !image )
- return ENOENT;
-
- if ( ( rc = imgload ( image ) ) != 0 ) {
- printf ( "Could not load embedded image: %s\n",
- strerror ( rc ) );
- } else if ( ( rc = imgexec ( image ) ) != 0 ) {
- printf ( "Could not boot embedded image: %s\n",
- strerror ( rc ) );
- }
- image_put ( image );
- return rc;
-}
-
-/**
* Boot using next-server and filename
*
* @v filename Boot filename
* @ret rc Return status code
*/
-static int boot_next_server_and_filename ( struct in_addr next_server,
- const char *filename ) {
+int boot_next_server_and_filename ( struct in_addr next_server,
+ const char *filename ) {
struct uri *uri;
struct image *image;
char buf[ 23 /* tftp://xxx.xxx.xxx.xxx/ */ + strlen(filename) + 1 ];
@@ -141,12 +121,15 @@ static int boot_next_server_and_filename ( struct in_addr next_server,
* @ret rc Return status code
*/
int boot_root_path ( const char *root_path ) {
+ struct sanboot_protocol *sanboot;
/* Quick hack */
- if ( strncmp ( root_path, "iscsi:", 6 ) == 0 ) {
- return iscsiboot ( root_path );
- } else if ( strncmp ( root_path, "aoe:", 4 ) == 0 ) {
- return aoeboot ( root_path );
+ for ( sanboot = sanboot_protocols ;
+ sanboot < sanboot_protocols_end ; sanboot++ ) {
+ if ( strncmp ( root_path, sanboot->prefix,
+ strlen ( sanboot->prefix ) ) == 0 ) {
+ return sanboot->boot ( root_path );
+ }
}
return -ENOTSUP;
@@ -159,8 +142,15 @@ int boot_root_path ( const char *root_path ) {
* @ret rc Return status code
*/
static int netboot ( struct net_device *netdev ) {
+ struct setting vendor_class_id_setting
+ = { .tag = DHCP_VENDOR_CLASS_ID };
+ struct setting pxe_discovery_control_setting
+ = { .tag = DHCP_PXE_DISCOVERY_CONTROL };
+ struct setting pxe_boot_menu_setting
+ = { .tag = DHCP_PXE_BOOT_MENU };
char buf[256];
struct in_addr next_server;
+ unsigned int pxe_discovery_control;
int rc;
/* Open device and display device status */
@@ -181,10 +171,18 @@ static int netboot ( struct net_device *netdev ) {
return rc;
route();
- /* Try to boot an embedded image if we have one */
- rc = boot_embedded_image ();
- if ( rc != ENOENT )
- return rc;
+ /* Try PXE menu boot, if applicable */
+ fetch_string_setting ( NULL, &vendor_class_id_setting,
+ buf, sizeof ( buf ) );
+ pxe_discovery_control =
+ fetch_uintz_setting ( NULL, &pxe_discovery_control_setting );
+ if ( ( strcmp ( buf, "PXEClient" ) == 0 ) &&
+ setting_exists ( NULL, &pxe_boot_menu_setting ) &&
+ ( ! ( ( pxe_discovery_control & PXEBS_SKIP ) &&
+ setting_exists ( NULL, &filename_setting ) ) ) ) {
+ printf ( "Booting from PXE menu\n" );
+ return pxe_menu_boot ( netdev );
+ }
/* Try to download and boot whatever we are given as a filename */
fetch_ipv4_setting ( NULL, &next_server_setting, &next_server );
diff --git a/gpxe/src/usr/dhcpmgmt.c b/gpxe/src/usr/dhcpmgmt.c
index 2e429cd6..6acf7f6d 100644
--- a/gpxe/src/usr/dhcpmgmt.c
+++ b/gpxe/src/usr/dhcpmgmt.c
@@ -46,3 +46,14 @@ int dhcp ( struct net_device *netdev ) {
return rc;
}
+
+int pxebs ( struct net_device *netdev, unsigned int pxe_type ) {
+ int rc;
+
+ /* Perform PXE Boot Server Discovery */
+ printf ( "PXEBS (%s type %d)", netdev->name, pxe_type );
+ if ( ( rc = start_pxebs ( &monojob, netdev, pxe_type ) ) == 0 )
+ rc = monojob_wait ( "" );
+
+ return rc;
+}
diff --git a/gpxe/src/usr/ifmgmt.c b/gpxe/src/usr/ifmgmt.c
index 9c88ab53..0ebf5615 100644
--- a/gpxe/src/usr/ifmgmt.c
+++ b/gpxe/src/usr/ifmgmt.c
@@ -20,9 +20,11 @@
#include <stdio.h>
#include <unistd.h>
#include <errno.h>
+#include <console.h>
#include <gpxe/netdevice.h>
#include <gpxe/device.h>
#include <gpxe/process.h>
+#include <gpxe/keys.h>
#include <usr/ifmgmt.h>
/** @file
@@ -59,6 +61,25 @@ void ifclose ( struct net_device *netdev ) {
}
/**
+ * Print network device error breakdown
+ *
+ * @v stats Network device statistics
+ * @v prefix Message prefix
+ */
+static void ifstat_errors ( struct net_device_stats *stats,
+ const char *prefix ) {
+ unsigned int i;
+
+ for ( i = 0 ; i < ( sizeof ( stats->errors ) /
+ sizeof ( stats->errors[0] ) ) ; i++ ) {
+ if ( stats->errors[i].count )
+ printf ( " [%s: %d x \"%s\"]\n", prefix,
+ stats->errors[i].count,
+ strerror ( stats->errors[i].rc ) );
+ }
+}
+
+/**
* Print status of network device
*
* @v netdev Network device
@@ -69,8 +90,10 @@ void ifstat ( struct net_device *netdev ) {
netdev->name, netdev_hwaddr ( netdev ), netdev->dev->name,
( ( netdev->state & NETDEV_OPEN ) ? "open" : "closed" ),
( netdev_link_ok ( netdev ) ? "up" : "down" ),
- netdev->stats.tx_ok, netdev->stats.tx_err,
- netdev->stats.rx_ok, netdev->stats.rx_err );
+ netdev->tx_stats.good, netdev->tx_stats.bad,
+ netdev->rx_stats.good, netdev->rx_stats.bad );
+ ifstat_errors ( &netdev->tx_stats, "TXE" );
+ ifstat_errors ( &netdev->rx_stats, "RXE" );
}
/**
@@ -80,12 +103,19 @@ void ifstat ( struct net_device *netdev ) {
* @v max_wait_ms Maximum time to wait, in ms
*/
int iflinkwait ( struct net_device *netdev, unsigned int max_wait_ms ) {
+ int key;
+
while ( 1 ) {
if ( netdev_link_ok ( netdev ) )
return 0;
if ( max_wait_ms-- == 0 )
return -ETIMEDOUT;
step();
+ if ( iskey() ) {
+ key = getchar();
+ if ( key == CTRL_C )
+ return -ECANCELED;
+ }
mdelay ( 1 );
}
}
diff --git a/gpxe/src/usr/imgmgmt.c b/gpxe/src/usr/imgmgmt.c
index be153f87..bd53d824 100644
--- a/gpxe/src/usr/imgmgmt.c
+++ b/gpxe/src/usr/imgmgmt.c
@@ -43,7 +43,10 @@
*/
int imgfetch ( struct image *image, const char *uri_string,
int ( * image_register ) ( struct image *image ) ) {
+ char uri_string_redacted[ strlen ( uri_string ) + 3 /* "***" */
+ + 1 /* NUL */ ];
struct uri *uri;
+ const char *password;
int rc;
if ( ! ( uri = parse_uri ( uri_string ) ) )
@@ -51,9 +54,17 @@ int imgfetch ( struct image *image, const char *uri_string,
image_set_uri ( image, uri );
+ /* Redact password portion of URI, if necessary */
+ password = uri->password;
+ if ( password )
+ uri->password = "***";
+ unparse_uri ( uri_string_redacted, sizeof ( uri_string_redacted ),
+ uri );
+ uri->password = password;
+
if ( ( rc = create_downloader ( &monojob, image, image_register,
LOCATION_URI, uri ) ) == 0 )
- rc = monojob_wait ( uri_string );
+ rc = monojob_wait ( uri_string_redacted );
uri_put ( uri );
return rc;
diff --git a/gpxe/src/usr/iscsiboot.c b/gpxe/src/usr/iscsiboot.c
deleted file mode 100644
index 84d77c45..00000000
--- a/gpxe/src/usr/iscsiboot.c
+++ /dev/null
@@ -1,102 +0,0 @@
-#include <stdint.h>
-#include <string.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <errno.h>
-#include <gpxe/iscsi.h>
-#include <gpxe/settings.h>
-#include <gpxe/dhcp.h>
-#include <gpxe/netdevice.h>
-#include <gpxe/ibft.h>
-#include <gpxe/init.h>
-#include <int13.h>
-#include <usr/autoboot.h>
-#include <usr/iscsiboot.h>
-
-struct setting keep_san_setting __setting = {
- .name = "keep-san",
- .description = "Preserve SAN connection",
- .tag = DHCP_EB_KEEP_SAN,
- .type = &setting_type_int8,
-};
-
-/**
- * Guess boot network device
- *
- * @ret netdev Boot network device
- */
-static struct net_device * guess_boot_netdev ( void ) {
- struct net_device *boot_netdev;
-
- /* Just use the first network device */
- for_each_netdev ( boot_netdev ) {
- return boot_netdev;
- }
-
- return NULL;
-}
-
-int iscsiboot ( const char *root_path ) {
- struct scsi_device *scsi;
- struct int13_drive *drive;
- int keep_san;
- int rc;
-
- scsi = zalloc ( sizeof ( *scsi ) );
- if ( ! scsi ) {
- rc = -ENOMEM;
- goto err_alloc_scsi;
- }
- drive = zalloc ( sizeof ( *drive ) );
- if ( ! drive ) {
- rc = -ENOMEM;
- goto err_alloc_drive;
- }
-
- printf ( "iSCSI booting from %s\n", root_path );
-
- if ( ( rc = iscsi_attach ( scsi, root_path ) ) != 0 ) {
- printf ( "Could not attach iSCSI device: %s\n",
- strerror ( rc ) );
- goto err_attach;
- }
- if ( ( rc = init_scsidev ( scsi ) ) != 0 ) {
- printf ( "Could not initialise iSCSI device: %s\n",
- strerror ( rc ) );
- goto err_init;
- }
-
- drive->blockdev = &scsi->blockdev;
-
- /* FIXME: ugly, ugly hack */
- struct net_device *netdev = guess_boot_netdev();
- struct iscsi_session *iscsi =
- container_of ( scsi->backend, struct iscsi_session, refcnt );
- ibft_fill_data ( netdev, iscsi );
-
- register_int13_drive ( drive );
- printf ( "Registered as BIOS drive %#02x\n", drive->drive );
- printf ( "Booting from BIOS drive %#02x\n", drive->drive );
- rc = int13_boot ( drive->drive );
- printf ( "Boot failed\n" );
-
- /* Leave drive registered, if instructed to do so */
- keep_san = fetch_intz_setting ( NULL, &keep_san_setting );
- if ( keep_san ) {
- printf ( "Preserving connection to SAN disk\n" );
- shutdown_exit_flags |= SHUTDOWN_KEEP_DEVICES;
- return rc;
- }
-
- printf ( "Unregistering BIOS drive %#02x\n", drive->drive );
- unregister_int13_drive ( drive );
-
- err_init:
- iscsi_detach ( scsi );
- err_attach:
- free ( drive );
- err_alloc_drive:
- free ( scsi );
- err_alloc_scsi:
- return rc;
-}
diff --git a/gpxe/src/usr/pxemenu.c b/gpxe/src/usr/pxemenu.c
new file mode 100644
index 00000000..793cb624
--- /dev/null
+++ b/gpxe/src/usr/pxemenu.c
@@ -0,0 +1,381 @@
+/*
+ * Copyright (C) 2009 Michael Brown <mbrown@fensystems.co.uk>.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <stdint.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <ctype.h>
+#include <byteswap.h>
+#include <curses.h>
+#include <console.h>
+#include <gpxe/dhcp.h>
+#include <gpxe/keys.h>
+#include <gpxe/timer.h>
+#include <gpxe/process.h>
+#include <usr/dhcpmgmt.h>
+#include <usr/autoboot.h>
+
+/** @file
+ *
+ * PXE Boot Menus
+ *
+ */
+
+/* Colour pairs */
+#define CPAIR_NORMAL 1
+#define CPAIR_SELECT 2
+
+/** A PXE boot menu item */
+struct pxe_menu_item {
+ /** Boot Server type */
+ unsigned int type;
+ /** Description */
+ char *desc;
+};
+
+/**
+ * A PXE boot menu
+ *
+ * This structure encapsulates the menu information provided via DHCP
+ * options.
+ */
+struct pxe_menu {
+ /** Prompt string (optional) */
+ const char *prompt;
+ /** Timeout (in seconds)
+ *
+ * Negative indicates no timeout (i.e. wait indefinitely)
+ */
+ int timeout;
+ /** Number of menu items */
+ unsigned int num_items;
+ /** Selected menu item */
+ unsigned int selection;
+ /** Menu items */
+ struct pxe_menu_item items[0];
+};
+
+/**
+ * Parse and allocate PXE boot menu
+ *
+ * @v menu PXE boot menu to fill in
+ * @ret rc Return status code
+ *
+ * It is the callers responsibility to eventually free the allocated
+ * boot menu.
+ */
+static int pxe_menu_parse ( struct pxe_menu **menu ) {
+ struct setting pxe_boot_menu_prompt_setting =
+ { .tag = DHCP_PXE_BOOT_MENU_PROMPT };
+ struct setting pxe_boot_menu_setting =
+ { .tag = DHCP_PXE_BOOT_MENU };
+ uint8_t raw_menu[256];
+ int raw_prompt_len;
+ int raw_menu_len;
+ struct dhcp_pxe_boot_menu *raw_menu_item;
+ struct dhcp_pxe_boot_menu_prompt *raw_menu_prompt;
+ void *raw_menu_end;
+ unsigned int num_menu_items;
+ unsigned int i;
+ int rc;
+
+ /* Fetch raw menu */
+ memset ( raw_menu, 0, sizeof ( raw_menu ) );
+ if ( ( raw_menu_len = fetch_setting ( NULL, &pxe_boot_menu_setting,
+ raw_menu,
+ sizeof ( raw_menu ) ) ) < 0 ) {
+ rc = raw_menu_len;
+ DBG ( "Could not retrieve raw PXE boot menu: %s\n",
+ strerror ( rc ) );
+ return rc;
+ }
+ if ( raw_menu_len >= ( int ) sizeof ( raw_menu ) ) {
+ DBG ( "Raw PXE boot menu too large for buffer\n" );
+ return -ENOSPC;
+ }
+ raw_menu_end = ( raw_menu + raw_menu_len );
+
+ /* Fetch raw prompt length */
+ raw_prompt_len = fetch_setting_len ( NULL,
+ &pxe_boot_menu_prompt_setting );
+ if ( raw_prompt_len < 0 )
+ raw_prompt_len = 0;
+
+ /* Count menu items */
+ num_menu_items = 0;
+ raw_menu_item = ( ( void * ) raw_menu );
+ while ( 1 ) {
+ if ( ( ( ( void * ) raw_menu_item ) +
+ sizeof ( *raw_menu_item ) ) > raw_menu_end )
+ break;
+ if ( ( ( ( void * ) raw_menu_item ) +
+ sizeof ( *raw_menu_item ) +
+ raw_menu_item->desc_len ) > raw_menu_end )
+ break;
+ num_menu_items++;
+ raw_menu_item = ( ( ( void * ) raw_menu_item ) +
+ sizeof ( *raw_menu_item ) +
+ raw_menu_item->desc_len );
+ }
+
+ /* Allocate space for parsed menu */
+ *menu = zalloc ( sizeof ( **menu ) +
+ ( num_menu_items * sizeof ( (*menu)->items[0] ) ) +
+ raw_menu_len + 1 /* NUL */ +
+ raw_prompt_len + 1 /* NUL */ );
+ if ( ! *menu ) {
+ DBG ( "Could not allocate PXE boot menu\n" );
+ return -ENOMEM;
+ }
+
+ /* Fill in parsed menu */
+ (*menu)->num_items = num_menu_items;
+ raw_menu_item = ( ( ( void * ) (*menu) ) + sizeof ( **menu ) +
+ ( num_menu_items * sizeof ( (*menu)->items[0] ) ) );
+ memcpy ( raw_menu_item, raw_menu, raw_menu_len );
+ for ( i = 0 ; i < num_menu_items ; i++ ) {
+ (*menu)->items[i].type = ntohs ( raw_menu_item->type );
+ (*menu)->items[i].desc = raw_menu_item->desc;
+ /* Set type to 0; this ensures that the description
+ * for the previous menu item is NUL-terminated.
+ * (Final item is NUL-terminated anyway.)
+ */
+ raw_menu_item->type = 0;
+ raw_menu_item = ( ( ( void * ) raw_menu_item ) +
+ sizeof ( *raw_menu_item ) +
+ raw_menu_item->desc_len );
+ }
+ if ( raw_prompt_len ) {
+ raw_menu_prompt = ( ( ( void * ) raw_menu_item ) +
+ 1 /* NUL */ );
+ fetch_setting ( NULL, &pxe_boot_menu_prompt_setting,
+ raw_menu_prompt, raw_prompt_len );
+ (*menu)->timeout =
+ ( ( raw_menu_prompt->timeout == 0xff ) ?
+ -1 : raw_menu_prompt->timeout );
+ (*menu)->prompt = raw_menu_prompt->prompt;
+ } else {
+ (*menu)->timeout = -1;
+ }
+
+ return 0;
+}
+
+/**
+ * Draw PXE boot menu item
+ *
+ * @v menu PXE boot menu
+ * @v index Index of item to draw
+ * @v selected Item is selected
+ */
+static void pxe_menu_draw_item ( struct pxe_menu *menu,
+ unsigned int index, int selected ) {
+ char buf[COLS+1];
+ size_t len;
+ unsigned int row;
+
+ /* Prepare space-padded row content */
+ len = snprintf ( buf, sizeof ( buf ), " %c. %s",
+ ( 'A' + index ), menu->items[index].desc );
+ while ( len < ( sizeof ( buf ) - 1 ) )
+ buf[len++] = ' ';
+ buf[ sizeof ( buf ) - 1 ] = '\0';
+
+ /* Draw row */
+ row = ( LINES - menu->num_items + index );
+ color_set ( ( selected ? CPAIR_SELECT : CPAIR_NORMAL ), NULL );
+ mvprintw ( row, 0, "%s", buf );
+ move ( row, 1 );
+}
+
+/**
+ * Make selection from PXE boot menu
+ *
+ * @v menu PXE boot menu
+ * @ret rc Return status code
+ */
+static int pxe_menu_select ( struct pxe_menu *menu ) {
+ int key;
+ unsigned int key_selection;
+ unsigned int i;
+ int rc = 0;
+
+ /* Initialise UI */
+ initscr();
+ start_color();
+ init_pair ( CPAIR_NORMAL, COLOR_WHITE, COLOR_BLACK );
+ init_pair ( CPAIR_SELECT, COLOR_BLACK, COLOR_WHITE );
+ color_set ( CPAIR_NORMAL, NULL );
+
+ /* Draw initial menu */
+ for ( i = 0 ; i < menu->num_items ; i++ )
+ printf ( "\n" );
+ for ( i = 0 ; i < menu->num_items ; i++ )
+ pxe_menu_draw_item ( menu, ( menu->num_items - i - 1 ), 0 );
+
+ while ( 1 ) {
+
+ /* Highlight currently selected item */
+ pxe_menu_draw_item ( menu, menu->selection, 1 );
+
+ /* Wait for keyboard input */
+ while ( ! iskey() )
+ step();
+ key = getkey();
+
+ /* Unhighlight currently selected item */
+ pxe_menu_draw_item ( menu, menu->selection, 0 );
+
+ /* Act upon key */
+ if ( ( key == CR ) || ( key == LF ) ) {
+ pxe_menu_draw_item ( menu, menu->selection, 1 );
+ break;
+ } else if ( ( key == CTRL_C ) || ( key == ESC ) ) {
+ rc = -ECANCELED;
+ break;
+ } else if ( key == KEY_UP ) {
+ if ( menu->selection > 0 )
+ menu->selection--;
+ } else if ( key == KEY_DOWN ) {
+ if ( menu->selection < ( menu->num_items - 1 ) )
+ menu->selection++;
+ } else if ( ( key < KEY_MIN ) &&
+ ( ( key_selection = ( toupper ( key ) - 'A' ) )
+ < menu->num_items ) ) {
+ menu->selection = key_selection;
+ pxe_menu_draw_item ( menu, menu->selection, 1 );
+ break;
+ }
+ }
+
+ /* Shut down UI */
+ endwin();
+
+ return rc;
+}
+
+/**
+ * Prompt for (and make selection from) PXE boot menu
+ *
+ * @v menu PXE boot menu
+ * @ret rc Return status code
+ */
+static int pxe_menu_prompt_and_select ( struct pxe_menu *menu ) {
+ unsigned long start = currticks();
+ unsigned long now;
+ unsigned long elapsed;
+ size_t len = 0;
+ int key;
+ int rc = 0;
+
+ /* Display menu immediately, if specified to do so */
+ if ( menu->timeout < 0 ) {
+ if ( menu->prompt )
+ printf ( "%s\n", menu->prompt );
+ return pxe_menu_select ( menu );
+ }
+
+ /* Display prompt, if specified */
+ if ( menu->prompt )
+ printf ( "%s", menu->prompt );
+
+ /* Wait for timeout, if specified */
+ while ( menu->timeout > 0 ) {
+ if ( ! len )
+ len = printf ( " (%d)", menu->timeout );
+ if ( iskey() ) {
+ key = getkey();
+ if ( key == KEY_F8 ) {
+ /* Display menu */
+ printf ( "\n" );
+ return pxe_menu_select ( menu );
+ } else if ( ( key == CTRL_C ) || ( key == ESC ) ) {
+ /* Abort */
+ rc = -ECANCELED;
+ break;
+ } else {
+ /* Stop waiting */
+ break;
+ }
+ }
+ now = currticks();
+ elapsed = ( now - start );
+ if ( elapsed >= TICKS_PER_SEC ) {
+ menu->timeout -= 1;
+ do {
+ printf ( "\b \b" );
+ } while ( --len );
+ start = now;
+ }
+ }
+
+ /* Return with default option selected */
+ printf ( "\n" );
+ return rc;
+}
+
+/**
+ * Boot using PXE boot menu
+ *
+ * @ret rc Return status code
+ *
+ * Note that a success return status indicates that a PXE boot menu
+ * item has been selected, and that the DHCP session should perform a
+ * boot server request/ack.
+ */
+int pxe_menu_boot ( struct net_device *netdev ) {
+ struct pxe_menu *menu;
+ unsigned int pxe_type;
+ struct settings *pxebs_settings;
+ struct in_addr next_server;
+ char filename[256];
+ int rc;
+
+ /* Parse and allocate boot menu */
+ if ( ( rc = pxe_menu_parse ( &menu ) ) != 0 )
+ return rc;
+
+ /* Make selection from boot menu */
+ if ( ( rc = pxe_menu_prompt_and_select ( menu ) ) != 0 ) {
+ free ( menu );
+ return rc;
+ }
+ pxe_type = menu->items[menu->selection].type;
+
+ /* Free boot menu */
+ free ( menu );
+
+ /* Return immediately if local boot selected */
+ if ( ! pxe_type )
+ return 0;
+
+ /* Attempt PXE Boot Server Discovery */
+ if ( ( rc = pxebs ( netdev, pxe_type ) ) != 0 )
+ return rc;
+
+ /* Attempt boot */
+ pxebs_settings = find_settings ( PXEBS_SETTINGS_NAME );
+ assert ( pxebs_settings );
+ fetch_ipv4_setting ( pxebs_settings, &next_server_setting,
+ &next_server );
+ fetch_string_setting ( pxebs_settings, &filename_setting,
+ filename, sizeof ( filename ) );
+ return boot_next_server_and_filename ( next_server, filename );
+}