diff options
| -rw-r--r-- | Documentation/networking/ip-sysctl.txt | 10 | ||||
| -rw-r--r-- | include/linux/ipv6.h | 2 | ||||
| -rw-r--r-- | include/linux/sysctl.h | 1 | ||||
| -rw-r--r-- | net/ipv6/addrconf.c | 11 | ||||
| -rw-r--r-- | net/ipv6/ndisc.c | 2 |
5 files changed, 23 insertions, 3 deletions
diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt index 8001faa76ea2..404afacb468d 100644 --- a/Documentation/networking/ip-sysctl.txt +++ b/Documentation/networking/ip-sysctl.txt @@ -723,6 +723,12 @@ accept_ra_defrtr - BOOLEAN Functional default: enabled if accept_ra is enabled. disabled if accept_ra is disabled. +accept_ra_pinfo - BOOLEAN + Learn Prefix Inforamtion in Router Advertisement. + + Functional default: enabled if accept_ra is enabled. + disabled if accept_ra is disabled. + accept_redirects - BOOLEAN Accept Redirects. @@ -733,8 +739,8 @@ autoconf - BOOLEAN Autoconfigure addresses using Prefix Information in Router Advertisements. - Functional default: enabled if accept_ra is enabled. - disabled if accept_ra is disabled. + Functional default: enabled if accept_ra_pinfo is enabled. + disabled if accept_ra_pinfo is disabled. dad_transmits - INTEGER The amount of Duplicate Address Detection probes to send. diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h index c5131a02869a..2c3b799480c5 100644 --- a/include/linux/ipv6.h +++ b/include/linux/ipv6.h @@ -146,6 +146,7 @@ struct ipv6_devconf { #endif __s32 max_addresses; __s32 accept_ra_defrtr; + __s32 accept_ra_pinfo; void *sysctl; }; @@ -169,6 +170,7 @@ enum { DEVCONF_MAX_ADDRESSES, DEVCONF_FORCE_MLD_VERSION, DEVCONF_ACCEPT_RA_DEFRTR, + DEVCONF_ACCEPT_RA_PINFO, DEVCONF_MAX }; diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h index 0f494137d037..09378ea505bd 100644 --- a/include/linux/sysctl.h +++ b/include/linux/sysctl.h @@ -532,6 +532,7 @@ enum { NET_IPV6_MAX_ADDRESSES=16, NET_IPV6_FORCE_MLD_VERSION=17, NET_IPV6_ACCEPT_RA_DEFRTR=18, + NET_IPV6_ACCEPT_RA_PINFO=19, __NET_IPV6_MAX }; diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index fbcdcc6ba93b..631b51d0ccbc 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -166,6 +166,7 @@ struct ipv6_devconf ipv6_devconf = { #endif .max_addresses = IPV6_MAX_ADDRESSES, .accept_ra_defrtr = 1, + .accept_ra_pinfo = 1, }; static struct ipv6_devconf ipv6_devconf_dflt = { @@ -188,6 +189,7 @@ static struct ipv6_devconf ipv6_devconf_dflt = { #endif .max_addresses = IPV6_MAX_ADDRESSES, .accept_ra_defrtr = 1, + .accept_ra_pinfo = 1, }; /* IPv6 Wildcard Address and Loopback Address defined by RFC2553 */ @@ -3119,6 +3121,7 @@ static void inline ipv6_store_devconf(struct ipv6_devconf *cnf, #endif array[DEVCONF_MAX_ADDRESSES] = cnf->max_addresses; array[DEVCONF_ACCEPT_RA_DEFRTR] = cnf->accept_ra_defrtr; + array[DEVCONF_ACCEPT_RA_PINFO] = cnf->accept_ra_pinfo; } static int inet6_fill_ifinfo(struct sk_buff *skb, struct inet6_dev *idev, @@ -3580,6 +3583,14 @@ static struct addrconf_sysctl_table .proc_handler = &proc_dointvec, }, { + .ctl_name = NET_IPV6_ACCEPT_RA_PINFO, + .procname = "accept_ra_pinfo", + .data = &ipv6_devconf.accept_ra_pinfo, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = &proc_dointvec, + }, + { .ctl_name = 0, /* sentinel */ } }, diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c index e17116796059..3b56be85234e 100644 --- a/net/ipv6/ndisc.c +++ b/net/ipv6/ndisc.c @@ -1191,7 +1191,7 @@ skip_defrtr: NEIGH_UPDATE_F_ISROUTER); } - if (ndopts.nd_opts_pi) { + if (in6_dev->cnf.accept_ra_pinfo && ndopts.nd_opts_pi) { struct nd_opt_hdr *p; for (p = ndopts.nd_opts_pi; p; |