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afdc3238ec
Add a nested compat attribute type that can be used to convert attributes that contain a structure to nested attributes in a backwards compatible way. The attribute looks like this: struct { [ compat contents ] struct rtattr { .rta_len = total size, .rta_type = type, } rta; struct old_structure struct; [ nested top-level attribute ] struct rtattr { .rta_len = nest size, .rta_type = type, } nest_attr; [ optional 0 .. n nested attributes ] struct rtattr { .rta_len = private attribute len, .rta_type = private attribute typ, } nested_attr; struct nested_data data; }; Since both userspace and kernel deal correctly with attributes that are larger than expected old versions will just parse the compat part and ignore the rest. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net> |
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.. | ||
datagram.c | ||
dev_mcast.c | ||
dev.c | ||
dst.c | ||
ethtool.c | ||
fib_rules.c | ||
filter.c | ||
flow.c | ||
gen_estimator.c | ||
gen_stats.c | ||
iovec.c | ||
kmap_skb.h | ||
link_watch.c | ||
Makefile | ||
neighbour.c | ||
net-sysfs.c | ||
netevent.c | ||
netpoll.c | ||
pktgen.c | ||
request_sock.c | ||
rtnetlink.c | ||
scm.c | ||
skbuff.c | ||
sock.c | ||
stream.c | ||
sysctl_net_core.c | ||
user_dma.c | ||
utils.c |