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Commit ce046c56 authored by David S. Miller's avatar David S. Miller
Browse files

Merge branch 'ipv6_stable_privacy_address' 



Hannes Frederic Sowa says:

====================
ipv6: RFC7217 stable privacy addresses implementation

this is an implementation of basic support for RFC7217 stable privacy
addresses. Please review and consider for net-next.

v2:
* Correct references to RFC 7212 -> RFC 7217 in documentation patch (thanks, Eric!)
====================

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parents 7f163d07 9f0761c1

Documentation/networking/ip-sysctl.txt

+25 −0
Original line number Diff line number Diff line
@@ -1220,6 +1220,17 @@ anycast_src_echo_reply - BOOLEAN 
	FALSE: disabled

	Default: FALSE



idgen_delay - INTEGER

	Controls the delay in seconds after which time to retry

	privacy stable address generation if a DAD conflict is

	detected.

	Default: 1 (as specified in RFC7217)



idgen_retries - INTEGER

	Controls the number of retries to generate a stable privacy

	address if a DAD conflict is detected.

	Default: 3 (as specified in RFC7217)



mld_qrv - INTEGER

	Controls the MLD query robustness variable (see RFC3810 9.1).

	Default: 2 (as specified by RFC3810 9.1)
@@ -1540,6 +1551,20 @@ use_optimistic - BOOLEAN 
		0: disabled (default)

		1: enabled



stable_secret - IPv6 address

	This IPv6 address will be used as a secret to generate IPv6

	addresses for link-local addresses and autoconfigured

	ones. All addresses generated after setting this secret will

	be stable privacy ones by default. This can be changed via the

	addrgenmode ip-link. conf/default/stable_secret is used as the

	secret for the namespace, the interface specific ones can

	overwrite that. Writes to conf/all/stable_secret are refused.



	It is recommended to generate this secret during installation

	of a system and keep it stable after that.



	By default the stable secret is unset.



icmp/*:

ratelimit - INTEGER

	Limit the maximal rates for sending ICMPv6 packets.

include/linux/ipv6.h

+4 −0
Original line number Diff line number Diff line
@@ -53,6 +53,10 @@ struct ipv6_devconf { 
	__s32           ndisc_notify;

	__s32		suppress_frag_ndisc;

	__s32		accept_ra_mtu;

	struct ipv6_stable_secret {

		bool initialized;

		struct in6_addr secret;

	} stable_secret;

	void		*sysctl;

};

include/net/if_inet6.h

+2 −2
Original line number Diff line number Diff line
@@ -47,12 +47,12 @@ struct inet6_ifaddr { 
	__u32			prefered_lft;

	atomic_t		refcnt;

	spinlock_t		lock;

	spinlock_t		state_lock;



	int			state;



	__u32			flags;

	__u8			dad_probes;

	__u8			stable_privacy_retry;



	__u16			scope;

include/net/netns/ipv6.h

+2 −0
Original line number Diff line number Diff line
@@ -32,6 +32,8 @@ struct netns_sysctl_ipv6 { 
	int icmpv6_time;

	int anycast_src_echo_reply;

	int fwmark_reflect;

	int idgen_retries;

	int idgen_delay;

};



struct netns_ipv6 {

include/uapi/linux/if_addr.h

+1 −0
Original line number Diff line number Diff line
@@ -51,6 +51,7 @@ enum { 
#define IFA_F_MANAGETEMPADDR	0x100

#define IFA_F_NOPREFIXROUTE	0x200

#define IFA_F_MCAUTOJOIN	0x400

#define IFA_F_STABLE_PRIVACY	0x800



struct ifa_cacheinfo {

	__u32	ifa_prefered;