sysctl net: Keep tcp_syn_retries inside the boundary

[pandora-kernel.git] / net / ipv4 / sysctl_net_ipv4.c

diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index 69fd720..739b073 100644 (file)
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -32,6 +32,8 @@ static int tcp_adv_win_scale_min = -31;
 static int tcp_adv_win_scale_max = 31;
 static int ip_ttl_min = 1;
 static int ip_ttl_max = 255;
+static int tcp_syn_retries_min = 1;
+static int tcp_syn_retries_max = MAX_TCP_SYNCNT;
 static int ip_ping_group_range_min[] = { 0, 0 };
 static int ip_ping_group_range_max[] = { GID_T_MAX, GID_T_MAX };
 
@@ -231,7 +233,9 @@ static struct ctl_table ipv4_table[] = {
                .data           = &sysctl_tcp_syn_retries,
                .maxlen         = sizeof(int),
                .mode           = 0644,
-               .proc_handler   = proc_dointvec
+               .proc_handler   = proc_dointvec_minmax,
+               .extra1         = &tcp_syn_retries_min,
+               .extra2         = &tcp_syn_retries_max
        },
        {
                .procname       = "tcp_synack_retries",
@@ -552,6 +556,13 @@ static struct ctl_table ipv4_table[] = {
                .mode           = 0644,
                .proc_handler   = proc_dointvec
        },
+       {
+               .procname       = "tcp_challenge_ack_limit",
+               .data           = &sysctl_tcp_challenge_ack_limit,
+               .maxlen         = sizeof(int),
+               .mode           = 0644,
+               .proc_handler   = proc_dointvec
+       },
 #ifdef CONFIG_NET_DMA
        {
                .procname       = "tcp_dma_copybreak",