Re: [PATCH v2] sysctl net: Keep tcp_syn_retries inside the boundary
From: Michal Tesar Date: Fri, 19 Jul 2013 14:09:01 +0200 > Limit the min/max value passed to the > /proc/sys/net/ipv4/tcp_syn_retries. > > Signed-off-by: Michal Tesar Applied and queued up for -stable. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH v2] 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 --- net/ipv4/sysctl_net_ipv4.c |6 +- 1 files changed, 5 insertions(+), 1 deletions(-) diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c index b2c123c..610e324 100644 --- a/net/ipv4/sysctl_net_ipv4.c +++ b/net/ipv4/sysctl_net_ipv4.c @@ -36,6 +36,8 @@ 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 }; @@ -332,7 +334,9 @@ static struct ctl_table ipv4_table[] = { .data = _tcp_syn_retries, .maxlen = sizeof(int), .mode = 0644, - .proc_handler = proc_dointvec + .proc_handler = proc_dointvec_minmax, + .extra1 = _syn_retries_min, + .extra2 = _syn_retries_max }, { .procname = "tcp_synack_retries", -- 1.7.7.6 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH v2] 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 mte...@redhat.com --- net/ipv4/sysctl_net_ipv4.c |6 +- 1 files changed, 5 insertions(+), 1 deletions(-) diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c index b2c123c..610e324 100644 --- a/net/ipv4/sysctl_net_ipv4.c +++ b/net/ipv4/sysctl_net_ipv4.c @@ -36,6 +36,8 @@ 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 }; @@ -332,7 +334,9 @@ 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, -- 1.7.7.6 -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH v2] sysctl net: Keep tcp_syn_retries inside the boundary
From: Michal Tesar mte...@redhat.com Date: Fri, 19 Jul 2013 14:09:01 +0200 Limit the min/max value passed to the /proc/sys/net/ipv4/tcp_syn_retries. Signed-off-by: Michal Tesar mte...@redhat.com Applied and queued up for -stable. -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/