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- /*
- * Copyright (C) 2012 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., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- */
-
- FILE_LICENCE ( GPL2_OR_LATER );
-
- /** @file
- *
- * VMware logfile console
- *
- */
-
- #include <string.h>
- #include <ipxe/console.h>
- #include <ipxe/lineconsole.h>
- #include <ipxe/init.h>
- #include <ipxe/guestrpc.h>
- #include <config/console.h>
-
- /** VMware logfile console buffer size */
- #define VMCONSOLE_BUFSIZE 128
-
- /* Set default console usage if applicable */
- #if ! ( defined ( CONSOLE_VMWARE ) && CONSOLE_EXPLICIT ( CONSOLE_VMWARE ) )
- #undef CONSOLE_VMWARE
- #define CONSOLE_VMWARE ( CONSOLE_USAGE_ALL & ~CONSOLE_USAGE_TUI )
- #endif
-
- /** VMware logfile console GuestRPC channel */
- static int vmconsole_channel;
-
- /** VMware logfile console line buffer */
- static struct {
- char prefix[4];
- char message[VMCONSOLE_BUFSIZE];
- } vmconsole_buffer = {
- .prefix = "log ",
- };
-
- /** VMware logfile console ANSI escape sequence handlers */
- static struct ansiesc_handler vmconsole_handlers[] = {
- { 0, NULL }
- };
-
- /** VMware logfile line console */
- static struct line_console vmconsole_line = {
- .buffer = vmconsole_buffer.message,
- .len = sizeof ( vmconsole_buffer.message ),
- .ctx = {
- .handlers = vmconsole_handlers,
- },
- };
-
- /** VMware logfile console recursion marker */
- static int vmconsole_entered;
-
- /**
- * Print a character to VMware logfile console
- *
- * @v character Character to be printed
- */
- static void vmconsole_putchar ( int character ) {
- int rc;
-
- /* Ignore if we are already mid-logging */
- if ( vmconsole_entered )
- return;
-
- /* Fill line buffer */
- if ( line_putchar ( &vmconsole_line, character ) == 0 )
- return;
-
- /* Guard against re-entry */
- vmconsole_entered = 1;
-
- /* Send log message */
- if ( ( rc = guestrpc_command ( vmconsole_channel,
- vmconsole_buffer.prefix, NULL, 0 ) ) <0){
- DBG ( "VMware console could not send log message: %s\n",
- strerror ( rc ) );
- }
-
- /* Clear re-entry flag */
- vmconsole_entered = 0;
- }
-
- /** VMware logfile console driver */
- struct console_driver vmconsole __console_driver = {
- .putchar = vmconsole_putchar,
- .disabled = 1,
- .usage = CONSOLE_VMWARE,
- };
-
- /**
- * Initialise VMware logfile console
- *
- */
- static void vmconsole_init ( void ) {
- int rc;
-
- /* Attempt to open console */
- vmconsole_channel = guestrpc_open();
- if ( vmconsole_channel < 0 ) {
- rc = vmconsole_channel;
- DBG ( "VMware console could not be initialised: %s\n",
- strerror ( rc ) );
- return;
- }
-
- /* Mark console as available */
- vmconsole.disabled = 0;
- }
-
- /**
- * VMware logfile console initialisation function
- */
- struct init_fn vmconsole_init_fn __init_fn ( INIT_CONSOLE ) = {
- .initialise = vmconsole_init,
- };
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