diff options
| author | Dmitry Safonov <dima@arista.com> | 2020-09-21 15:36:55 +0100 |
|---|---|---|
| committer | Alistair Delva <adelva@google.com> | 2020-11-02 16:37:23 +0000 |
| commit | f0fee529f3b89d49e01e883c7c78e112ac8943b1 (patch) | |
| tree | efcb5e90c76aa7fb425b49b61b2562a352cfd4d8 /include | |
| parent | 7ba7521120771376dfa85f53b1b7db075ddaad24 (diff) | |
BACKPORT: xfrm/compat: Add 32=>64-bit messages translator
Provide the user-to-kernel translator under XFRM_USER_COMPAT, that
creates for 32-bit xfrm-user message a 64-bit translation.
The translation is afterwards reused by xfrm_user code just as if
userspace had sent 64-bit message.
Signed-off-by: Dmitry Safonov <dima@arista.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
(cherry picked from commit 5106f4a8acff480e244300bc5097c0ad7048c3a2)
[adelva: nlmsg_parse_deprecated -> nlmsg_parse]
Bug: 163141236
Signed-off-by: Alistair Delva <adelva@google.com>
Change-Id: If15999b86e4704b75307fbcc3d7f0c8d8bc89e7a
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/xfrm.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/net/xfrm.h b/include/net/xfrm.h index 1c32d693e9d1..b75b69b255f5 100644 --- a/include/net/xfrm.h +++ b/include/net/xfrm.h @@ -1827,11 +1827,16 @@ static inline int xfrm_tunnel_check(struct sk_buff *skb, struct xfrm_state *x, } 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 module *owner; }; |