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dccp: Per-socket initialisation of feature negotiation
[deliverable/linux.git]
/
include
/
linux
/
dccp.h
diff --git
a/include/linux/dccp.h
b/include/linux/dccp.h
index 6080449fbec942b7a1340c4a0c131f1957b33e81..484b8a1fb023ac303ecbc209e9c3228498436f9c 100644
(file)
--- a/
include/linux/dccp.h
+++ b/
include/linux/dccp.h
@@
-176,19
+176,20
@@
enum {
};
/* DCCP features (RFC 4340 section 6.4) */
};
/* DCCP features (RFC 4340 section 6.4) */
-enum {
+enum
dccp_feature_numbers
{
DCCPF_RESERVED = 0,
DCCPF_CCID = 1,
DCCPF_RESERVED = 0,
DCCPF_CCID = 1,
- DCCPF_SHORT_SEQNOS = 2,
/* XXX: not yet implemented */
+ DCCPF_SHORT_SEQNOS = 2,
DCCPF_SEQUENCE_WINDOW = 3,
DCCPF_SEQUENCE_WINDOW = 3,
- DCCPF_ECN_INCAPABLE = 4,
/* XXX: not yet implemented */
+ DCCPF_ECN_INCAPABLE = 4,
DCCPF_ACK_RATIO = 5,
DCCPF_SEND_ACK_VECTOR = 6,
DCCPF_SEND_NDP_COUNT = 7,
DCCPF_MIN_CSUM_COVER = 8,
DCCPF_ACK_RATIO = 5,
DCCPF_SEND_ACK_VECTOR = 6,
DCCPF_SEND_NDP_COUNT = 7,
DCCPF_MIN_CSUM_COVER = 8,
- DCCPF_DATA_CHECKSUM = 9,
/* XXX: not yet implemented */
+ DCCPF_DATA_CHECKSUM = 9,
/* 10-127 reserved */
DCCPF_MIN_CCID_SPECIFIC = 128,
/* 10-127 reserved */
DCCPF_MIN_CCID_SPECIFIC = 128,
+ DCCPF_SEND_LEV_RATE = 192, /* RFC 4342, sec. 8.4 */
DCCPF_MAX_CCID_SPECIFIC = 255,
};
DCCPF_MAX_CCID_SPECIFIC = 255,
};
@@
-411,6
+412,7
@@
extern void dccp_minisock_init(struct dccp_minisock *dmsk);
* @dreq_iss: initial sequence number sent on the Response (RFC 4340, 7.1)
* @dreq_isr: initial sequence number received on the Request
* @dreq_service: service code present on the Request (there is just one)
* @dreq_iss: initial sequence number sent on the Response (RFC 4340, 7.1)
* @dreq_isr: initial sequence number received on the Request
* @dreq_service: service code present on the Request (there is just one)
+ * @dreq_featneg: feature negotiation options for this connection
* The following two fields are analogous to the ones in dccp_sock:
* @dreq_timestamp_echo: last received timestamp to echo (13.1)
* @dreq_timestamp_echo: the time of receiving the last @dreq_timestamp_echo
* The following two fields are analogous to the ones in dccp_sock:
* @dreq_timestamp_echo: last received timestamp to echo (13.1)
* @dreq_timestamp_echo: the time of receiving the last @dreq_timestamp_echo
@@
-420,6
+422,7
@@
struct dccp_request_sock {
__u64 dreq_iss;
__u64 dreq_isr;
__be32 dreq_service;
__u64 dreq_iss;
__u64 dreq_isr;
__be32 dreq_service;
+ struct list_head dreq_featneg;
__u32 dreq_timestamp_echo;
__u32 dreq_timestamp_time;
};
__u32 dreq_timestamp_echo;
__u32 dreq_timestamp_time;
};
@@
-497,6
+500,7
@@
struct dccp_ackvec;
* @dccps_mss_cache - current value of MSS (path MTU minus header sizes)
* @dccps_rate_last - timestamp for rate-limiting DCCP-Sync (RFC 4340, 7.5.4)
* @dccps_minisock - associated minisock (accessed via dccp_msk)
* @dccps_mss_cache - current value of MSS (path MTU minus header sizes)
* @dccps_rate_last - timestamp for rate-limiting DCCP-Sync (RFC 4340, 7.5.4)
* @dccps_minisock - associated minisock (accessed via dccp_msk)
+ * @dccps_featneg - tracks feature-negotiation state (mostly during handshake)
* @dccps_hc_rx_ackvec - rx half connection ack vector
* @dccps_hc_rx_ccid - CCID used for the receiver (or receiving half-connection)
* @dccps_hc_tx_ccid - CCID used for the sender (or sending half-connection)
* @dccps_hc_rx_ackvec - rx half connection ack vector
* @dccps_hc_rx_ccid - CCID used for the receiver (or receiving half-connection)
* @dccps_hc_tx_ccid - CCID used for the sender (or sending half-connection)
@@
-534,6
+538,7
@@
struct dccp_sock {
__u64 dccps_ndp_count:48;
unsigned long dccps_rate_last;
struct dccp_minisock dccps_minisock;
__u64 dccps_ndp_count:48;
unsigned long dccps_rate_last;
struct dccp_minisock dccps_minisock;
+ struct list_head dccps_featneg;
struct dccp_ackvec *dccps_hc_rx_ackvec;
struct ccid *dccps_hc_rx_ccid;
struct ccid *dccps_hc_tx_ccid;
struct dccp_ackvec *dccps_hc_rx_ackvec;
struct ccid *dccps_hc_rx_ccid;
struct ccid *dccps_hc_tx_ccid;
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