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[XFRM]: Introduce XFRM_MSG_REPORT.

Browse source 
XFRM_MSG_REPORT is a message as notification of state protocol and
selector from kernel to user-space.

Mobile IPv6 will use it when inbound reject is occurred at route
optimization to make user-space know a binding error requirement.

Based on MIPL2 kernel patch.

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Masahide NAKAMURA 2006-08-23 20:44:06 -07:00 • committed by David S. Miller
commit 97a64b4577
4 changed files with 79 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

12
include/linux/xfrm.h
View file

@ -166,6 +166,10 @@ enum {
#define XFRM_MSG_NEWAE XFRM_MSG_NEWAE
XFRM_MSG_GETAE,
#define XFRM_MSG_GETAE XFRM_MSG_GETAE
XFRM_MSG_REPORT,
#define XFRM_MSG_REPORT XFRM_MSG_REPORT
__XFRM_MSG_MAX
};
#define XFRM_MSG_MAX (__XFRM_MSG_MAX - 1)
@ -325,12 +329,18 @@ struct xfrm_usersa_flush {
__u8 proto;
};
struct xfrm_user_report {
__u8 proto;
struct xfrm_selector sel;
};
#ifndef __KERNEL__
/* backwards compatibility for userspace */
#define XFRMGRP_ACQUIRE 1
#define XFRMGRP_EXPIRE 2
#define XFRMGRP_SA 4
#define XFRMGRP_POLICY 8
#define XFRMGRP_REPORT 0x10
#endif
enum xfrm_nlgroups {
@ -346,6 +356,8 @@ enum xfrm_nlgroups {
#define XFRMNLGRP_POLICY XFRMNLGRP_POLICY
XFRMNLGRP_AEVENTS,
#define XFRMNLGRP_AEVENTS XFRMNLGRP_AEVENTS
XFRMNLGRP_REPORT,
#define XFRMNLGRP_REPORT XFRMNLGRP_REPORT
__XFRMNLGRP_MAX
};
#define XFRMNLGRP_MAX (__XFRMNLGRP_MAX - 1)

2
include/net/xfrm.h
View file

@ -381,6 +381,7 @@ struct xfrm_mgr
struct xfrm_policy *(*compile_policy)(struct sock *sk, int opt, u8 *data, int len, int *dir);
int (*new_mapping)(struct xfrm_state *x, xfrm_address_t *ipaddr, u16 sport);
int (*notify_policy)(struct xfrm_policy *x, int dir, struct km_event *c);
int (*report)(u8 proto, struct xfrm_selector *sel, xfrm_address_t *addr);
};
extern int xfrm_register_km(struct xfrm_mgr *km);
@ -1043,6 +1044,7 @@ extern void xfrm_init_pmtu(struct dst_entry *dst);
extern wait_queue_head_t km_waitq;
extern int km_new_mapping(struct xfrm_state *x, xfrm_address_t *ipaddr, u16 sport);
extern void km_policy_expired(struct xfrm_policy *pol, int dir, int hard, u32 pid);
extern int km_report(u8 proto, struct xfrm_selector *sel, xfrm_address_t *addr);
extern void xfrm_input_init(void);
extern int xfrm_parse_spi(struct sk_buff *skb, u8 nexthdr, u32 *spi, u32 *seq);