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yaml
---
r: 66271
b: refs/heads/master
c: d39badf
h: refs/heads/master
i:
  66269: ac1e7ea
  66267: 438ab1d
  66263: 3f8c960
  66255: f6e2657
  66239: 49be0d4
v: v3
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Satyam Sharma authored and David S. Miller committed Oct 10, 2007
1 parent 0ba9e58 commit 75ed38a
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Showing 2 changed files with 28 additions and 29 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: ab66b4a7a3969077f6e2a18a0d2d849d3b84a337
refs/heads/master: d39badf05b52f99169b22ce324fd31c8b44a0473
55 changes: 27 additions & 28 deletions trunk/drivers/net/netconsole.c
Original file line number Diff line number Diff line change
Expand Up @@ -35,35 +35,32 @@
****************************************************************/

#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);
#define MAX_PARAM_LENGTH 256
#define MAX_PRINT_CHUNK 1000

static char config[MAX_PARAM_LENGTH];
module_param_string(netconsole, config, MAX_PARAM_LENGTH, 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},
.name = "netconsole",
.dev_name = "eth0",
.local_port = 6665,
.remote_port = 6666,
.remote_mac = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff},
};
static int configured = 0;

#define MAX_PRINT_CHUNK 1000
static int configured;

static void write_msg(struct console *con, const char *msg, unsigned int len)
{
Expand All @@ -75,7 +72,7 @@ static void write_msg(struct console *con, const char *msg, unsigned int len)

local_irq_save(flags);

for(left = len; left; ) {
for (left = len; left;) {
frag = min(left, MAX_PRINT_CHUNK);
netpoll_send_udp(&np, msg, frag);
msg += frag;
Expand All @@ -86,41 +83,43 @@ static void write_msg(struct console *con, const char *msg, unsigned int len)
}

static struct console netconsole = {
.name = "netcon",
.flags = CON_ENABLED | CON_PRINTBUFFER,
.write = write_msg
.name = "netcon",
.flags = CON_ENABLED | CON_PRINTBUFFER,
.write = write_msg,
};

static int option_setup(char *opt)
static int __init option_setup(char *opt)
{
configured = !netpoll_parse_options(&np, opt);
return 1;
}

__setup("netconsole=", option_setup);

static int init_netconsole(void)
static int __init init_netconsole(void)
{
int err;
int err = 0;

if(strlen(config))
if (strnlen(config, MAX_PARAM_LENGTH))
option_setup(config);

if(!configured) {
printk("netconsole: not configured, aborting\n");
return 0;
if (!configured) {
printk(KERN_INFO "netconsole: not configured, aborting\n");
goto out;
}

err = netpoll_setup(&np);
if (err)
return err;
goto out;

register_console(&netconsole);
printk(KERN_INFO "netconsole: network logging started\n");
return 0;

out:
return err;
}

static void cleanup_netconsole(void)
static void __exit cleanup_netconsole(void)
{
unregister_console(&netconsole);
netpoll_cleanup(&np);
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