Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/net/netconsole.c b/drivers/net/netconsole.c
new file mode 100644
index 0000000..edd1b53
--- /dev/null
+++ b/drivers/net/netconsole.c
@@ -0,0 +1,127 @@
+/*
+ * linux/drivers/net/netconsole.c
+ *
+ * Copyright (C) 2001 Ingo Molnar <mingo@redhat.com>
+ *
+ * This file contains the implementation of an IRQ-safe, crash-safe
+ * kernel console implementation that outputs kernel messages to the
+ * network.
+ *
+ * Modification history:
+ *
+ * 2001-09-17 started by Ingo Molnar.
+ * 2003-08-11 2.6 port by Matt Mackall
+ * simplified options
+ * generic card hooks
+ * works non-modular
+ * 2003-09-07 rewritten with netpoll api
+ */
+
+/****************************************************************
+ * 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, or (at your option)
+ * 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 <linux/mm.h>
+#include <linux/tty.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/console.h>
+#include <linux/tty_driver.h>
+#include <linux/moduleparam.h>
+#include <linux/string.h>
+#include <linux/sysrq.h>
+#include <linux/smp.h>
+#include <linux/netpoll.h>
+
+MODULE_AUTHOR("Maintainer: Matt Mackall <mpm@selenic.com>");
+MODULE_DESCRIPTION("Console driver for network interfaces");
+MODULE_LICENSE("GPL");
+
+static char config[256];
+module_param_string(netconsole, config, 256, 0);
+MODULE_PARM_DESC(netconsole, " netconsole=[src-port]@[src-ip]/[dev],[tgt-port]@<tgt-ip>/[tgt-macaddr]\n");
+
+static struct netpoll np = {
+ .name = "netconsole",
+ .dev_name = "eth0",
+ .local_port = 6665,
+ .remote_port = 6666,
+ .remote_mac = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff},
+ .drop = netpoll_queue,
+};
+static int configured = 0;
+
+#define MAX_PRINT_CHUNK 1000
+
+static void write_msg(struct console *con, const char *msg, unsigned int len)
+{
+ int frag, left;
+ unsigned long flags;
+
+ if (!np.dev)
+ return;
+
+ local_irq_save(flags);
+
+ for(left = len; left; ) {
+ frag = min(left, MAX_PRINT_CHUNK);
+ netpoll_send_udp(&np, msg, frag);
+ msg += frag;
+ left -= frag;
+ }
+
+ local_irq_restore(flags);
+}
+
+static struct console netconsole = {
+ .flags = CON_ENABLED | CON_PRINTBUFFER,
+ .write = write_msg
+};
+
+static int option_setup(char *opt)
+{
+ configured = !netpoll_parse_options(&np, opt);
+ return 0;
+}
+
+__setup("netconsole=", option_setup);
+
+static int init_netconsole(void)
+{
+ if(strlen(config))
+ option_setup(config);
+
+ if(!configured) {
+ printk("netconsole: not configured, aborting\n");
+ return -EINVAL;
+ }
+
+ if(netpoll_setup(&np))
+ return -EINVAL;
+
+ register_console(&netconsole);
+ printk(KERN_INFO "netconsole: network logging started\n");
+ return 0;
+}
+
+static void cleanup_netconsole(void)
+{
+ unregister_console(&netconsole);
+ netpoll_cleanup(&np);
+}
+
+module_init(init_netconsole);
+module_exit(cleanup_netconsole);