diff options
| author | Dmitry Safonov <dima@arista.com> | 2020-09-21 17:36:53 +0300 |
|---|---|---|
| committer | Steffen Klassert <steffen.klassert@secunet.com> | 2020-09-24 09:53:03 +0300 |
| commit | 5f3eea6b7e8f58cf5c8a9d4b9679dc19e9e67ba3 (patch) | |
| tree | a95b9ecbbd9032044bfcdf9abc5199421b1b4848 /net/netlink | |
| parent | 5461fc0c8d9f23956b99f5907f69726a293ccb67 (diff) | |
| download | linux-5f3eea6b7e8f58cf5c8a9d4b9679dc19e9e67ba3.tar.xz | |
xfrm/compat: Attach xfrm dumps to 64=>32 bit translator
Currently nlmsg_unicast() is used by functions that dump structures that
can be different in size for compat tasks, see dump_one_state() and
dump_one_policy().
The following nlmsg_unicast() users exist today in xfrm:
Function | Message can be different
| in size on compat
-------------------------------------------|------------------------------
xfrm_get_spdinfo() | N
xfrm_get_sadinfo() | N
xfrm_get_sa() | Y
xfrm_alloc_userspi() | Y
xfrm_get_policy() | Y
xfrm_get_ae() | N
Besides, dump_one_state() and dump_one_policy() can be used by filtered
netlink dump for XFRM_MSG_GETSA, XFRM_MSG_GETPOLICY.
Just as for xfrm multicast, allocate frag_list for compat skb journey
down to recvmsg() which will give user the desired skb according to
syscall bitness.
Signed-off-by: Dmitry Safonov <dima@arista.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Diffstat (limited to 'net/netlink')
0 files changed, 0 insertions, 0 deletions