From a25de534f89c515c82d3553c42d3bb02c2d1a7da Mon Sep 17 00:00:00 2001 From: Anton Arapov Date: Thu, 18 Oct 2007 22:00:17 -0700 Subject: [INET]: Justification for local port range robustness. There is a justifying patch for Stephen's patches. Stephen's patches disallows using a port range of one single port and brakes the meaning of the 'remaining' variable, in some places it has different meaning. My patch gives back the sense of 'remaining' variable. It should mean how many ports are remaining and nothing else. Also my patch allows using a single port. I sure we must be able to use mentioned port range, this does not restricted by documentation and does not brake current behavior. usefull links: Patches posted by Stephen Hemminger http://marc.info/?l=linux-netdev&m=119206106218187&w=2 http://marc.info/?l=linux-netdev&m=119206109918235&w=2 Andrew Morton's comment http://marc.info/?l=linux-kernel&m=119248225007737&w=2 1. Allows using a port range of one single port. 2. Gives back sense of 'remaining' variable. Signed-off-by: Anton Arapov Acked-by: Stephen Hemminger Signed-off-by: David S. Miller --- net/ipv4/sysctl_net_ipv4.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'net/ipv4/sysctl_net_ipv4.c') diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c index c78acc1a7f11..ffddd2b45352 100644 --- a/net/ipv4/sysctl_net_ipv4.c +++ b/net/ipv4/sysctl_net_ipv4.c @@ -122,7 +122,7 @@ static int ipv4_local_port_range(ctl_table *table, int write, struct file *filp, ret = proc_dointvec_minmax(&tmp, write, filp, buffer, lenp, ppos); if (write && ret == 0) { - if (range[1] <= range[0]) + if (range[1] < range[0]) ret = -EINVAL; else set_local_port_range(range); @@ -150,7 +150,7 @@ static int ipv4_sysctl_local_port_range(ctl_table *table, int __user *name, ret = sysctl_intvec(&tmp, name, nlen, oldval, oldlenp, newval, newlen); if (ret == 0 && newval && newlen) { - if (range[1] <= range[0]) + if (range[1] < range[0]) ret = -EINVAL; else set_local_port_range(range); -- cgit v1.2.3-59-g8ed1b