diff options
| author | Maciej Żenczykowski <maze@google.com> | 2023-12-06 20:36:12 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2023-12-08 13:40:51 +0300 |
| commit | bd4a816752bab609dd6d65ae021387beb9e2ddbd (patch) | |
| tree | 95e81b5605988babb87fe1ecbbe9fe5032124555 /include/net/if_inet6.h | |
| parent | e5dc5afff62f3e97e86c3643ec9fcad23de4f2d3 (diff) | |
| download | linux-bd4a816752bab609dd6d65ae021387beb9e2ddbd.tar.xz | |
net: ipv6: support reporting otherwise unknown prefix flags in RTM_NEWPREFIX
Lorenzo points out that we effectively clear all unknown
flags from PIO when copying them to userspace in the netlink
RTM_NEWPREFIX notification.
We could fix this one at a time as new flags are defined,
or in one fell swoop - I choose the latter.
We could either define 6 new reserved flags (reserved1..6) and handle
them individually (and rename them as new flags are defined), or we
could simply copy the entire unmodified byte over - I choose the latter.
This unfortunately requires some anonymous union/struct magic,
so we add a static assert on the struct size for a little extra safety.
Cc: David Ahern <dsahern@kernel.org>
Cc: Lorenzo Colitti <lorenzo@google.com>
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/if_inet6.h')
| -rw-r--r-- | include/net/if_inet6.h | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/include/net/if_inet6.h b/include/net/if_inet6.h index 3e454c4d7ba6..f07642264c1e 100644 --- a/include/net/if_inet6.h +++ b/include/net/if_inet6.h @@ -22,10 +22,6 @@ #define IF_RS_SENT 0x10 #define IF_READY 0x80000000 -/* prefix flags */ -#define IF_PREFIX_ONLINK 0x01 -#define IF_PREFIX_AUTOCONF 0x02 - enum { INET6_IFADDR_STATE_PREDAD, INET6_IFADDR_STATE_DAD, |