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| author | David S. Miller <davem@davemloft.net> | 2020-10-02 23:16:15 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-10-02 23:16:15 +0300 |
| commit | c16bcd70a11b52d20877aa4e0b59285690a1b268 (patch) | |
| tree | 8d79467b920406544c2f7d415e71c8441d647016 /include/net | |
| parent | 949ca6b82e43b342dba153a9fd643fb1b5e9f034 (diff) | |
| parent | 61e7113e48d3ca1ea692b5c6376a4b545b312166 (diff) | |
| download | linux-c16bcd70a11b52d20877aa4e0b59285690a1b268.tar.xz | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next
Steffen Klassert says:
====================
pull request (net-next): ipsec-next 2020-10-02
1) Add a full xfrm compatible layer for 32-bit applications on
64-bit kernels. From Dmitry Safonov.
Please pull or let me know if there are problems.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/xfrm.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/include/net/xfrm.h b/include/net/xfrm.h index 2737d24ec244..53618a31634b 100644 --- a/include/net/xfrm.h +++ b/include/net/xfrm.h @@ -2000,6 +2000,39 @@ static inline int xfrm_tunnel_check(struct sk_buff *skb, struct xfrm_state *x, return 0; } +extern const int xfrm_msg_min[XFRM_NR_MSGTYPES]; +extern const struct nla_policy xfrma_policy[XFRMA_MAX+1]; + +struct xfrm_translator { + /* Allocate frag_list and put compat translation there */ + int (*alloc_compat)(struct sk_buff *skb, const struct nlmsghdr *src); + + /* Allocate nlmsg with 64-bit translaton of received 32-bit message */ + struct nlmsghdr *(*rcv_msg_compat)(const struct nlmsghdr *nlh, + int maxtype, const struct nla_policy *policy, + struct netlink_ext_ack *extack); + + /* Translate 32-bit user_policy from sockptr */ + int (*xlate_user_policy_sockptr)(u8 **pdata32, int optlen); + + struct module *owner; +}; + +#if IS_ENABLED(CONFIG_XFRM_USER_COMPAT) +extern int xfrm_register_translator(struct xfrm_translator *xtr); +extern int xfrm_unregister_translator(struct xfrm_translator *xtr); +extern struct xfrm_translator *xfrm_get_translator(void); +extern void xfrm_put_translator(struct xfrm_translator *xtr); +#else +static inline struct xfrm_translator *xfrm_get_translator(void) +{ + return NULL; +} +static inline void xfrm_put_translator(struct xfrm_translator *xtr) +{ +} +#endif + #if IS_ENABLED(CONFIG_IPV6) static inline bool xfrm6_local_dontfrag(const struct sock *sk) { |