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[NETLINK]: Generic netlink receive queue processor

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Introduces netlink_run_queue() to handle the receive queue of
a netlink socket in a generic way. Processes as much as there
was in the queue upon entry and invokes a callback function
for each netlink message found. The callback function may
refuse a message by returning a negative error code but setting
the error pointer to 0 in which case netlink_run_queue() will
return with a qlen != 0.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Thomas Graf
2005-11-10 02:25:53 +01:00
committed by Thomas Graf
parent a8f74b2288
commit 82ace47a72
2 changed files with 97 additions and 0 deletions
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6
include/net/netlink.h
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@@ -183,6 +183,12 @@ struct nla_policy {
u16 minlen;
};
extern void netlink_run_queue(struct sock *sk, unsigned int *qlen,
int (*cb)(struct sk_buff *,
struct nlmsghdr *, int *));
extern void netlink_queue_skip(struct nlmsghdr *nlh,
struct sk_buff *skb);
extern int nla_validate(struct nlattr *head, int len, int maxtype,
struct nla_policy *policy);
extern int nla_parse(struct nlattr *tb[], int maxtype,