From 762d16d9e4a5635990c702b11773aa90f9c359b6 Mon Sep 17 00:00:00 2001 From: Mark Johnston Date: Mon, 16 Jan 2017 19:35:19 +0000 Subject: [PATCH] Improve some of the sysctl descriptions added in r299827. Submitted by: Marie Helene Kvello-Aune (original version) MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D5336 --- sys/netinet6/in6_proto.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) diff --git a/sys/netinet6/in6_proto.c b/sys/netinet6/in6_proto.c index cfb762887bf6..0678b4c1181c 100644 --- a/sys/netinet6/in6_proto.c +++ b/sys/netinet6/in6_proto.c @@ -507,19 +507,21 @@ sysctl_ip6_tempvltime(SYSCTL_HANDLER_ARGS) SYSCTL_INT(_net_inet6_ip6, IPV6CTL_FORWARDING, forwarding, CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(ip6_forwarding), 0, - "Enable IPv6 forwarding between interfaces"); + "Enable forwarding of IPv6 packets between interfaces"); SYSCTL_INT(_net_inet6_ip6, IPV6CTL_SENDREDIRECTS, redirect, CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(ip6_sendredirects), 0, - "Send a redirect message when forwarding back to a source link"); + "Send ICMPv6 redirects for unforwardable IPv6 packets"); SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFHLIM, hlim, CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(ip6_defhlim), 0, - "Default hop limit"); + "Default hop limit to use for outgoing IPv6 packets"); SYSCTL_VNET_PCPUSTAT(_net_inet6_ip6, IPV6CTL_STATS, stats, struct ip6stat, ip6stat, "IP6 statistics (struct ip6stat, netinet6/ip6_var.h)"); SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGPACKETS, maxfragpackets, CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(ip6_maxfragpackets), 0, - "Maximum allowed number of outstanding fragmented IPv6 packets"); + "Default maximum number of outstanding fragmented IPv6 packets. " + "A value of 0 means no fragmented packets will be accepted, while a " + "a value of -1 means no limit"); SYSCTL_INT(_net_inet6_ip6, IPV6CTL_ACCEPT_RTADV, accept_rtadv, CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(ip6_accept_rtadv), 0, "Default value of per-interface flag for accepting ICMPv6 RA messages"); @@ -541,7 +543,8 @@ SYSCTL_INT(_net_inet6_ip6, IPV6CTL_LOG_INTERVAL, log_interval, "Frequency in seconds at which to log IPv6 forwarding errors"); SYSCTL_INT(_net_inet6_ip6, IPV6CTL_HDRNESTLIMIT, hdrnestlimit, CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(ip6_hdrnestlimit), 0, - "Maximum allowed number of nested protocol headers"); + "Default maximum number of IPv6 extension headers permitted on " + "incoming IPv6 packets, 0 for no artificial limit"); SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DAD_COUNT, dad_count, CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(ip6_dad_count), 0, "Number of ICMPv6 NS messages sent during duplicate address detection"); @@ -550,7 +553,8 @@ SYSCTL_INT(_net_inet6_ip6, IPV6CTL_AUTO_FLOWLABEL, auto_flowlabel, "Provide an IPv6 flowlabel in outbound packets"); SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFMCASTHLIM, defmcasthlim, CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(ip6_defmcasthlim), 0, - "Default hop limit for multicast packets"); + "Default hop limit for IPv6 multicast packets originating from this " + "node"); SYSCTL_STRING(_net_inet6_ip6, IPV6CTL_KAME_VERSION, kame_version, CTLFLAG_RD, __KAME_VERSION, 0, "KAME version string");