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authorDavid Howells <dhowells@redhat.com>2006-12-05 09:37:56 -0500
committerDavid Howells <dhowells@warthog.cambridge.redhat.com>2006-12-05 09:37:56 -0500
commit4c1ac1b49122b805adfa4efc620592f68dccf5db (patch)
tree87557f4bc2fd4fe65b7570489c2f610c45c0adcd /net/dccp/feat.h
parentc4028958b6ecad064b1a6303a6a5906d4fe48d73 (diff)
parentd916faace3efc0bf19fe9a615a1ab8fa1a24cd93 (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts: drivers/infiniband/core/iwcm.c drivers/net/chelsio/cxgb2.c drivers/net/wireless/bcm43xx/bcm43xx_main.c drivers/net/wireless/prism54/islpci_eth.c drivers/usb/core/hub.h drivers/usb/input/hid-core.c net/core/netpoll.c Fix up merge failures with Linus's head and fix new compilation failures. Signed-Off-By: David Howells <dhowells@redhat.com>
Diffstat (limited to 'net/dccp/feat.h')
-rw-r--r--net/dccp/feat.h48
1 files changed, 39 insertions, 9 deletions
diff --git a/net/dccp/feat.h b/net/dccp/feat.h
index cee553d416ca..2c373ad7edcf 100644
--- a/net/dccp/feat.h
+++ b/net/dccp/feat.h
@@ -12,9 +12,46 @@
12 */ 12 */
13 13
14#include <linux/types.h> 14#include <linux/types.h>
15#include "dccp.h"
15 16
16struct sock; 17static inline int dccp_feat_is_valid_length(u8 type, u8 feature, u8 len)
17struct dccp_minisock; 18{
19 /* sec. 6.1: Confirm has at least length 3,
20 * sec. 6.2: Change has at least length 4 */
21 if (len < 3)
22 return 1;
23 if (len < 4 && (type == DCCPO_CHANGE_L || type == DCCPO_CHANGE_R))
24 return 1;
25 /* XXX: add per-feature length validation (sec. 6.6.8) */
26 return 0;
27}
28
29static inline int dccp_feat_is_reserved(const u8 feat)
30{
31 return (feat > DCCPF_DATA_CHECKSUM &&
32 feat < DCCPF_MIN_CCID_SPECIFIC) ||
33 feat == DCCPF_RESERVED;
34}
35
36/* feature negotiation knows only these four option types (RFC 4340, sec. 6) */
37static inline int dccp_feat_is_valid_type(const u8 optnum)
38{
39 return optnum >= DCCPO_CHANGE_L && optnum <= DCCPO_CONFIRM_R;
40
41}
42
43#ifdef CONFIG_IP_DCCP_DEBUG
44extern const char *dccp_feat_typename(const u8 type);
45extern const char *dccp_feat_name(const u8 feat);
46
47static inline void dccp_feat_debug(const u8 type, const u8 feat, const u8 val)
48{
49 dccp_pr_debug("%s(%s (%d), %d)\n", dccp_feat_typename(type),
50 dccp_feat_name(feat), feat, val);
51}
52#else
53#define dccp_feat_debug(type, feat, val)
54#endif /* CONFIG_IP_DCCP_DEBUG */
18 55
19extern int dccp_feat_change(struct dccp_minisock *dmsk, u8 type, u8 feature, 56extern int dccp_feat_change(struct dccp_minisock *dmsk, u8 type, u8 feature,
20 u8 *val, u8 len, gfp_t gfp); 57 u8 *val, u8 len, gfp_t gfp);
@@ -26,11 +63,4 @@ extern void dccp_feat_clean(struct dccp_minisock *dmsk);
26extern int dccp_feat_clone(struct sock *oldsk, struct sock *newsk); 63extern int dccp_feat_clone(struct sock *oldsk, struct sock *newsk);
27extern int dccp_feat_init(struct dccp_minisock *dmsk); 64extern int dccp_feat_init(struct dccp_minisock *dmsk);
28 65
29extern int dccp_feat_default_sequence_window;
30extern int dccp_feat_default_rx_ccid;
31extern int dccp_feat_default_tx_ccid;
32extern int dccp_feat_default_ack_ratio;
33extern int dccp_feat_default_send_ack_vector;
34extern int dccp_feat_default_send_ndp_count;
35
36#endif /* _DCCP_FEAT_H */ 66#endif /* _DCCP_FEAT_H */