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dccp: Initialisation framework for feature negotiation

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This initialises feature negotiation from two tables, which are in
turn are initialised from sysctls.

As a novel feature, specifics of the implementation (e.g. that short
seqnos and ECN are not yet available) are advertised for robustness.

Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Acked-by: Ian McDonald <ian.mcdonald@jandi.co.nz>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Gerrit Renker
2009-01-16 23:36:30 +00:00
committed by David S. Miller
parent 5cda9364f1
commit f90f92eed7
3 changed files with 57 additions and 29 deletions
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2
net/dccp/feat.h
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@ -113,13 +113,13 @@ static inline void dccp_feat_debug(const u8 type, const u8 feat, const u8 val)
#define dccp_feat_debug(type, feat, val)
#endif /* CONFIG_IP_DCCP_DEBUG */
extern int dccp_feat_init(struct sock *sk);
extern int dccp_feat_register_sp(struct sock *sk, u8 feat, u8 is_local,
u8 const *list, u8 len);
extern int dccp_feat_register_nn(struct sock *sk, u8 feat, u64 val);
extern int dccp_feat_parse_options(struct sock *, struct dccp_request_sock *,
u8 mand, u8 opt, u8 feat, u8 *val, u8 len);
extern int dccp_feat_clone_list(struct list_head const *, struct list_head *);
extern int dccp_feat_init(struct sock *sk);
/*
* Encoding variable-length options and their maximum length.