diff options
Diffstat (limited to 'qemu/roms/ipxe/src/net/udp/syslog.c')
| -rw-r--r-- | qemu/roms/ipxe/src/net/udp/syslog.c | 302 |
1 files changed, 0 insertions, 302 deletions
diff --git a/qemu/roms/ipxe/src/net/udp/syslog.c b/qemu/roms/ipxe/src/net/udp/syslog.c deleted file mode 100644 index b6eee6036..000000000 --- a/qemu/roms/ipxe/src/net/udp/syslog.c +++ /dev/null @@ -1,302 +0,0 @@ -/* - * Copyright (C) 2011 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. - * - * You can also choose to distribute this program under the terms of - * the Unmodified Binary Distribution Licence (as given in the file - * COPYING.UBDL), provided that you have satisfied its requirements. - */ - -FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); - -/** @file - * - * Syslog protocol - * - */ - -#include <stdint.h> -#include <stdlib.h> -#include <ctype.h> -#include <byteswap.h> -#include <ipxe/xfer.h> -#include <ipxe/open.h> -#include <ipxe/tcpip.h> -#include <ipxe/dhcp.h> -#include <ipxe/dhcpv6.h> -#include <ipxe/settings.h> -#include <ipxe/console.h> -#include <ipxe/lineconsole.h> -#include <ipxe/syslog.h> -#include <config/console.h> - -/* Set default console usage if applicable */ -#if ! ( defined ( CONSOLE_SYSLOG ) && CONSOLE_EXPLICIT ( CONSOLE_SYSLOG ) ) -#undef CONSOLE_SYSLOG -#define CONSOLE_SYSLOG ( CONSOLE_USAGE_ALL & ~CONSOLE_USAGE_TUI ) -#endif - -/** The syslog server */ -static union { - struct sockaddr sa; - struct sockaddr_tcpip st; - struct sockaddr_in sin; - struct sockaddr_in6 sin6; -} logserver = { - .st = { - .st_port = htons ( SYSLOG_PORT ), - }, -}; - -/** Syslog UDP interface operations */ -static struct interface_operation syslogger_operations[] = {}; - -/** Syslog UDP interface descriptor */ -static struct interface_descriptor syslogger_desc = - INTF_DESC_PURE ( syslogger_operations ); - -/** The syslog UDP interface */ -static struct interface syslogger = INTF_INIT ( syslogger_desc ); - -/****************************************************************************** - * - * Console driver - * - ****************************************************************************** - */ - -/** Host name (for log messages) */ -static char *syslog_hostname; - -/** Domain name (for log messages) */ -static char *syslog_domain; - -/** - * Transmit formatted syslog message - * - * @v xfer Data transfer interface - * @v severity Severity - * @v message Message - * @v terminator Message terminator - * @ret rc Return status code - */ -int syslog_send ( struct interface *xfer, unsigned int severity, - const char *message, const char *terminator ) { - const char *hostname = ( syslog_hostname ? syslog_hostname : "" ); - const char *domain = ( ( hostname[0] && syslog_domain ) ? - syslog_domain : "" ); - - return xfer_printf ( xfer, "<%d>%s%s%s%sipxe: %s%s", - SYSLOG_PRIORITY ( SYSLOG_DEFAULT_FACILITY, - severity ), hostname, - ( domain[0] ? "." : "" ), domain, - ( hostname[0] ? " " : "" ), message, terminator ); -} - -/****************************************************************************** - * - * Console driver - * - ****************************************************************************** - */ - -/** Syslog line buffer */ -static char syslog_buffer[SYSLOG_BUFSIZE]; - -/** Syslog severity */ -static unsigned int syslog_severity = SYSLOG_DEFAULT_SEVERITY; - -/** - * Handle ANSI set syslog priority (private sequence) - * - * @v ctx ANSI escape sequence context - * @v count Parameter count - * @v params List of graphic rendition aspects - */ -static void syslog_handle_priority ( struct ansiesc_context *ctx __unused, - unsigned int count __unused, - int params[] ) { - if ( params[0] >= 0 ) { - syslog_severity = params[0]; - } else { - syslog_severity = SYSLOG_DEFAULT_SEVERITY; - } -} - -/** Syslog ANSI escape sequence handlers */ -static struct ansiesc_handler syslog_handlers[] = { - { ANSIESC_LOG_PRIORITY, syslog_handle_priority }, - { 0, NULL } -}; - -/** Syslog line console */ -static struct line_console syslog_line = { - .buffer = syslog_buffer, - .len = sizeof ( syslog_buffer ), - .ctx = { - .handlers = syslog_handlers, - }, -}; - -/** Syslog recursion marker */ -static int syslog_entered; - -/** - * Print a character to syslog console - * - * @v character Character to be printed - */ -static void syslog_putchar ( int character ) { - int rc; - - /* Ignore if we are already mid-logging */ - if ( syslog_entered ) - return; - - /* Fill line buffer */ - if ( line_putchar ( &syslog_line, character ) == 0 ) - return; - - /* Guard against re-entry */ - syslog_entered = 1; - - /* Send log message */ - if ( ( rc = syslog_send ( &syslogger, syslog_severity, - syslog_buffer, "" ) ) != 0 ) { - DBG ( "SYSLOG could not send log message: %s\n", - strerror ( rc ) ); - } - - /* Clear re-entry flag */ - syslog_entered = 0; -} - -/** Syslog console driver */ -struct console_driver syslog_console __console_driver = { - .putchar = syslog_putchar, - .disabled = CONSOLE_DISABLED, - .usage = CONSOLE_SYSLOG, -}; - -/****************************************************************************** - * - * Settings - * - ****************************************************************************** - */ - -/** IPv4 syslog server setting */ -const struct setting syslog_setting __setting ( SETTING_MISC, syslog ) = { - .name = "syslog", - .description = "Syslog server", - .tag = DHCP_LOG_SERVERS, - .type = &setting_type_ipv4, -}; - -/** IPv6 syslog server setting */ -const struct setting syslog6_setting __setting ( SETTING_MISC, syslog6 ) = { - .name = "syslog6", - .description = "Syslog server", - .tag = DHCPV6_LOG_SERVERS, - .type = &setting_type_ipv6, - .scope = &ipv6_scope, -}; - -/** - * Strip invalid characters from host/domain name - * - * @v name Name to strip - */ -static void syslog_fix_name ( char *name ) { - char *fixed = name; - int c; - - /* Do nothing if name does not exist */ - if ( ! name ) - return; - - /* Strip any non-printable or whitespace characters from the name */ - do { - c = *(name++); - *fixed = c; - if ( isprint ( c ) && ! isspace ( c ) ) - fixed++; - } while ( c ); -} - -/** - * Apply syslog settings - * - * @ret rc Return status code - */ -static int apply_syslog_settings ( void ) { - struct sockaddr old_logserver; - int rc; - - /* Fetch hostname and domain name */ - free ( syslog_hostname ); - fetch_string_setting_copy ( NULL, &hostname_setting, &syslog_hostname ); - syslog_fix_name ( syslog_hostname ); - free ( syslog_domain ); - fetch_string_setting_copy ( NULL, &domain_setting, &syslog_domain ); - syslog_fix_name ( syslog_domain ); - - /* Fetch log server */ - syslog_console.disabled = CONSOLE_DISABLED; - memcpy ( &old_logserver, &logserver, sizeof ( old_logserver ) ); - logserver.sa.sa_family = 0; - if ( fetch_ipv6_setting ( NULL, &syslog6_setting, - &logserver.sin6.sin6_addr ) >= 0 ) { - logserver.sin6.sin6_family = AF_INET6; - } else if ( fetch_ipv4_setting ( NULL, &syslog_setting, - &logserver.sin.sin_addr ) >= 0 ) { - logserver.sin.sin_family = AF_INET; - } - if ( logserver.sa.sa_family ) { - syslog_console.disabled = 0; - DBG ( "SYSLOG using log server %s\n", - sock_ntoa ( &logserver.sa ) ); - } - - /* Do nothing unless log server has changed */ - if ( memcmp ( &logserver, &old_logserver, sizeof ( logserver ) ) == 0 ) - return 0; - - /* Reset syslog connection */ - intf_restart ( &syslogger, 0 ); - - /* Do nothing unless we have a log server */ - if ( syslog_console.disabled ) { - DBG ( "SYSLOG has no log server\n" ); - return 0; - } - - /* Connect to log server */ - if ( ( rc = xfer_open_socket ( &syslogger, SOCK_DGRAM, - &logserver.sa, NULL ) ) != 0 ) { - DBG ( "SYSLOG cannot connect to log server: %s\n", - strerror ( rc ) ); - return rc; - } - - return 0; -} - -/** Syslog settings applicator */ -struct settings_applicator syslog_applicator __settings_applicator = { - .apply = apply_syslog_settings, -}; |