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[NETLINK]: Use group numbers instead of bitmasks internally

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Using the group number allows increasing the number of groups without
beeing limited by the size of the bitmask. It introduces one limitation
for netlink users: messages can't be broadcasted to multiple groups anymore,
however this feature was never used inside the kernel.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Patrick McHardy 2005-08-14 19:27:50 -07:00 • committed by David S. Miller
parent 77247bbb30
commit d629b836d1
2 changed files with 21 additions and 16 deletions
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2
include/linux/netlink.h
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@ -107,7 +107,7 @@ struct netlink_skb_parms
struct ucred creds; /* Skb credentials */
__u32 pid;
__u32 dst_pid;
__u32 dst_groups;
__u32 dst_group;
kernel_cap_t eff_cap;
__u32 loginuid; /* Login (audit) uid */
};