On Sat, 06 Oct 2007 00:02:47 +0900
Satoshi OSHIMA <[EMAIL PROTECTED]> wrote:

> This patch introduces memory limitation for UDP.
> 
> 
> signed-off-by: Satoshi Oshima <[EMAIL PROTECTED]>
> signed-off-by: Hideo Aoki <[EMAIL PROTECTED]>

> Index: 2.6.23-rc9-udp_limit/net/ipv4/sysctl_net_ipv4.c
> ===================================================================
> --- 2.6.23-rc9-udp_limit.orig/net/ipv4/sysctl_net_ipv4.c
> +++ 2.6.23-rc9-udp_limit/net/ipv4/sysctl_net_ipv4.c
> @@ -17,6 +17,7 @@
>  #include <net/ip.h>
>  #include <net/route.h>
>  #include <net/tcp.h>
> +#include <net/udp.h>
>  #include <net/cipso_ipv4.h>
>  
>  /* From af_inet.c */
> @@ -599,6 +600,14 @@ ctl_table ipv4_table[] = {
>               .proc_handler   = &proc_dointvec
>       },
>       {
> +             .ctl_name       = NET_UDP_MEM,
> +             .procname       = "udp_mem",
> +             .data           = &sysctl_udp_mem,
> +             .maxlen         = sizeof(sysctl_udp_mem),
> +             .mode           = 0644,
> +             .proc_handler   = &proc_dointvec
> +     },
> +     {
>               .ctl_name       = NET_TCP_APP_WIN,
>               .procname       = "tcp_app_win",
>               .data           = &sysctl_tcp_app_win,

if you use &proc_dointvec_minmax, then you could inforce min/max
values for udp_mem for the sysctl
-- 
Stephen Hemminger <[EMAIL PROTECTED]>
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