diff options
| author | Stephen Hemminger <shemminger@osdl.org> | 2006-02-02 20:40:09 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2006-02-02 20:40:09 -0800 |
| commit | 0dec456d1fe73e0539625f0973ee8ef8fb805943 (patch) | |
| tree | 56d37da8d8e37154030d3f45224ae852195977e6 | |
| parent | 6e2be3ea4fab4d1c02e369719311e8d7ae6cc7c1 (diff) | |
[NET]: Add CONFIG_NETDEBUG to suppress bad packet messages.
If you are on a hostile network, or are running protocol tests, you can
easily get the logged swamped by messages about bad UDP and ICMP packets.
This turns those messages off unless a config option is enabled.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Acked-by: Dave Jones <davej@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | include/net/sock.h | 8 | ||||
| -rw-r--r-- | net/Kconfig | 7 |
2 files changed, 11 insertions, 4 deletions
diff --git a/include/net/sock.h b/include/net/sock.h index 1806e5b61419..30758035d616 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -1354,12 +1354,12 @@ extern int sock_get_timestamp(struct sock *, struct timeval __user *); * Enable debug/info messages */ -#if 0 -#define NETDEBUG(fmt, args...) do { } while (0) -#define LIMIT_NETDEBUG(fmt, args...) do { } while(0) -#else +#ifdef CONFIG_NETDEBUG #define NETDEBUG(fmt, args...) printk(fmt,##args) #define LIMIT_NETDEBUG(fmt, args...) do { if (net_ratelimit()) printk(fmt,##args); } while(0) +#else +#define NETDEBUG(fmt, args...) do { } while (0) +#define LIMIT_NETDEBUG(fmt, args...) do { } while(0) #endif /* diff --git a/net/Kconfig b/net/Kconfig index bc603d9aea56..5126f58d9c44 100644 --- a/net/Kconfig +++ b/net/Kconfig @@ -27,6 +27,13 @@ if NET menu "Networking options" +config NETDEBUG + bool "Network packet debugging" + help + You can say Y here if you want to get additional messages useful in + debugging bad packets, but can overwhelm logs under denial of service + attacks. + source "net/packet/Kconfig" source "net/unix/Kconfig" source "net/xfrm/Kconfig" |