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sysctl net: Keep tcp_syn_retries inside the boundary
Limit the min/max value passed to the /proc/sys/net/ipv4/tcp_syn_retries. Signed-off-by: Michal Tesar <mtesar@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -36,6 +36,8 @@ static int tcp_adv_win_scale_min = -31;
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static int tcp_adv_win_scale_max = 31;
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static int ip_ttl_min = 1;
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static int ip_ttl_max = 255;
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static int tcp_syn_retries_min = 1;
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static int tcp_syn_retries_max = MAX_TCP_SYNCNT;
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static int ip_ping_group_range_min[] = { 0, 0 };
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static int ip_ping_group_range_max[] = { GID_T_MAX, GID_T_MAX };
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@ -332,7 +334,9 @@ static struct ctl_table ipv4_table[] = {
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.data = &sysctl_tcp_syn_retries,
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.maxlen = sizeof(int),
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.mode = 0644,
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.proc_handler = proc_dointvec
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.proc_handler = proc_dointvec_minmax,
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.extra1 = &tcp_syn_retries_min,
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.extra2 = &tcp_syn_retries_max
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},
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{
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.procname = "tcp_synack_retries",
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