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netfilter: nfnetlink: consolidate callback types

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Add enum nfnl_callback_type to identify the callback type to provide one
single callback.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Pablo Neira Ayuso
2021-04-23 00:17:12 +02:00
parent 7dab8ee3b6
commit 50f2db9e36
12 changed files with 271 additions and 124 deletions
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16
include/linux/netfilter/nfnetlink.h
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@@ -14,15 +14,19 @@ struct nfnl_info {
struct netlink_ext_ack *extack;
};
enum nfnl_callback_type {
NFNL_CB_UNSPEC = 0,
NFNL_CB_MUTEX,
NFNL_CB_RCU,
NFNL_CB_BATCH,
};
struct nfnl_callback {
int (*call)(struct sk_buff *skb, const struct nfnl_info *info,
const struct nlattr * const cda[]);
int (*call_rcu)(struct sk_buff *skb, const struct nfnl_info *info,
const struct nlattr * const cda[]);
int (*call_batch)(struct sk_buff *skb, const struct nfnl_info *info,
const struct nlattr * const cda[]);
const struct nla_policy *policy; /* netlink attribute policy */
const u_int16_t attr_count; /* number of nlattr's */
const struct nla_policy *policy;
enum nfnl_callback_type type;
__u16 attr_count;
};
enum nfnl_abort_action {