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-rw-r--r--include/linux/sctp.h233
1 files changed, 148 insertions, 85 deletions
diff --git a/include/linux/sctp.h b/include/linux/sctp.h
index fcb4c3646173..99e866487e2f 100644
--- a/include/linux/sctp.h
+++ b/include/linux/sctp.h
@@ -57,12 +57,12 @@
#include <uapi/linux/sctp.h>
/* Section 3.1. SCTP Common Header Format */
-typedef struct sctphdr {
+struct sctphdr {
__be16 source;
__be16 dest;
__be32 vtag;
__le32 checksum;
-} __packed sctp_sctphdr_t;
+};
static inline struct sctphdr *sctp_hdr(const struct sk_buff *skb)
{
@@ -70,11 +70,11 @@ static inline struct sctphdr *sctp_hdr(const struct sk_buff *skb)
}
/* Section 3.2. Chunk Field Descriptions. */
-typedef struct sctp_chunkhdr {
+struct sctp_chunkhdr {
__u8 type;
__u8 flags;
__be16 length;
-} __packed sctp_chunkhdr_t;
+};
/* Section 3.2. Chunk Type Values.
@@ -82,7 +82,7 @@ typedef struct sctp_chunkhdr {
* Value field. It takes a value from 0 to 254. The value of 255 is
* reserved for future use as an extension field.
*/
-typedef enum {
+enum sctp_cid {
SCTP_CID_DATA = 0,
SCTP_CID_INIT = 1,
SCTP_CID_INIT_ACK = 2,
@@ -108,7 +108,8 @@ typedef enum {
/* Use hex, as defined in ADDIP sec. 3.1 */
SCTP_CID_ASCONF = 0xC1,
SCTP_CID_ASCONF_ACK = 0x80,
-} sctp_cid_t; /* enum */
+ SCTP_CID_RECONF = 0x82,
+}; /* enum */
/* Section 3.2
@@ -116,12 +117,12 @@ typedef enum {
* the action that must be taken if the processing endpoint does not
* recognize the Chunk Type.
*/
-typedef enum {
+enum {
SCTP_CID_ACTION_DISCARD = 0x00,
SCTP_CID_ACTION_DISCARD_ERR = 0x40,
SCTP_CID_ACTION_SKIP = 0x80,
SCTP_CID_ACTION_SKIP_ERR = 0xc0,
-} sctp_cid_action_t;
+};
enum { SCTP_CID_ACTION_MASK = 0xc0, };
@@ -161,12 +162,12 @@ enum { SCTP_CHUNK_FLAG_T = 0x01 };
* Section 3.2.1 Optional/Variable-length Parmaeter Format.
*/
-typedef struct sctp_paramhdr {
+struct sctp_paramhdr {
__be16 type;
__be16 length;
-} __packed sctp_paramhdr_t;
+};
-typedef enum {
+enum sctp_param {
/* RFC 2960 Section 3.3.5 */
SCTP_PARAM_HEARTBEAT_INFO = cpu_to_be16(1),
@@ -199,7 +200,14 @@ typedef enum {
SCTP_PARAM_SUCCESS_REPORT = cpu_to_be16(0xc005),
SCTP_PARAM_ADAPTATION_LAYER_IND = cpu_to_be16(0xc006),
-} sctp_param_t; /* enum */
+ /* RE-CONFIG. Section 4 */
+ SCTP_PARAM_RESET_OUT_REQUEST = cpu_to_be16(0x000d),
+ SCTP_PARAM_RESET_IN_REQUEST = cpu_to_be16(0x000e),
+ SCTP_PARAM_RESET_TSN_REQUEST = cpu_to_be16(0x000f),
+ SCTP_PARAM_RESET_RESPONSE = cpu_to_be16(0x0010),
+ SCTP_PARAM_RESET_ADD_OUT_STREAMS = cpu_to_be16(0x0011),
+ SCTP_PARAM_RESET_ADD_IN_STREAMS = cpu_to_be16(0x0012),
+}; /* enum */
/* RFC 2960 Section 3.2.1
@@ -208,29 +216,29 @@ typedef enum {
* not recognize the Parameter Type.
*
*/
-typedef enum {
+enum {
SCTP_PARAM_ACTION_DISCARD = cpu_to_be16(0x0000),
SCTP_PARAM_ACTION_DISCARD_ERR = cpu_to_be16(0x4000),
SCTP_PARAM_ACTION_SKIP = cpu_to_be16(0x8000),
SCTP_PARAM_ACTION_SKIP_ERR = cpu_to_be16(0xc000),
-} sctp_param_action_t;
+};
enum { SCTP_PARAM_ACTION_MASK = cpu_to_be16(0xc000), };
/* RFC 2960 Section 3.3.1 Payload Data (DATA) (0) */
-typedef struct sctp_datahdr {
+struct sctp_datahdr {
__be32 tsn;
__be16 stream;
__be16 ssn;
__be32 ppid;
__u8 payload[0];
-} __packed sctp_datahdr_t;
+};
-typedef struct sctp_data_chunk {
- sctp_chunkhdr_t chunk_hdr;
- sctp_datahdr_t data_hdr;
-} __packed sctp_data_chunk_t;
+struct sctp_data_chunk {
+ struct sctp_chunkhdr chunk_hdr;
+ struct sctp_datahdr data_hdr;
+};
/* DATA Chuck Specific Flags */
enum {
@@ -249,103 +257,103 @@ enum { SCTP_DATA_FRAG_MASK = 0x03, };
* This chunk is used to initiate a SCTP association between two
* endpoints.
*/
-typedef struct sctp_inithdr {
+struct sctp_inithdr {
__be32 init_tag;
__be32 a_rwnd;
__be16 num_outbound_streams;
__be16 num_inbound_streams;
__be32 initial_tsn;
__u8 params[0];
-} __packed sctp_inithdr_t;
+};
-typedef struct sctp_init_chunk {
- sctp_chunkhdr_t chunk_hdr;
- sctp_inithdr_t init_hdr;
-} __packed sctp_init_chunk_t;
+struct sctp_init_chunk {
+ struct sctp_chunkhdr chunk_hdr;
+ struct sctp_inithdr init_hdr;
+};
/* Section 3.3.2.1. IPv4 Address Parameter (5) */
typedef struct sctp_ipv4addr_param {
- sctp_paramhdr_t param_hdr;
+ struct sctp_paramhdr param_hdr;
struct in_addr addr;
-} __packed sctp_ipv4addr_param_t;
+} sctp_ipv4addr_param_t;
/* Section 3.3.2.1. IPv6 Address Parameter (6) */
typedef struct sctp_ipv6addr_param {
- sctp_paramhdr_t param_hdr;
+ struct sctp_paramhdr param_hdr;
struct in6_addr addr;
-} __packed sctp_ipv6addr_param_t;
+} sctp_ipv6addr_param_t;
/* Section 3.3.2.1 Cookie Preservative (9) */
typedef struct sctp_cookie_preserve_param {
- sctp_paramhdr_t param_hdr;
+ struct sctp_paramhdr param_hdr;
__be32 lifespan_increment;
-} __packed sctp_cookie_preserve_param_t;
+} sctp_cookie_preserve_param_t;
/* Section 3.3.2.1 Host Name Address (11) */
typedef struct sctp_hostname_param {
- sctp_paramhdr_t param_hdr;
+ struct sctp_paramhdr param_hdr;
uint8_t hostname[0];
-} __packed sctp_hostname_param_t;
+} sctp_hostname_param_t;
/* Section 3.3.2.1 Supported Address Types (12) */
typedef struct sctp_supported_addrs_param {
- sctp_paramhdr_t param_hdr;
+ struct sctp_paramhdr param_hdr;
__be16 types[0];
-} __packed sctp_supported_addrs_param_t;
+} sctp_supported_addrs_param_t;
/* Appendix A. ECN Capable (32768) */
typedef struct sctp_ecn_capable_param {
- sctp_paramhdr_t param_hdr;
-} __packed sctp_ecn_capable_param_t;
+ struct sctp_paramhdr param_hdr;
+} sctp_ecn_capable_param_t;
/* ADDIP Section 3.2.6 Adaptation Layer Indication */
typedef struct sctp_adaptation_ind_param {
struct sctp_paramhdr param_hdr;
__be32 adaptation_ind;
-} __packed sctp_adaptation_ind_param_t;
+} sctp_adaptation_ind_param_t;
/* ADDIP Section 4.2.7 Supported Extensions Parameter */
typedef struct sctp_supported_ext_param {
struct sctp_paramhdr param_hdr;
__u8 chunks[0];
-} __packed sctp_supported_ext_param_t;
+} sctp_supported_ext_param_t;
/* AUTH Section 3.1 Random */
typedef struct sctp_random_param {
- sctp_paramhdr_t param_hdr;
+ struct sctp_paramhdr param_hdr;
__u8 random_val[0];
-} __packed sctp_random_param_t;
+} sctp_random_param_t;
/* AUTH Section 3.2 Chunk List */
typedef struct sctp_chunks_param {
- sctp_paramhdr_t param_hdr;
+ struct sctp_paramhdr param_hdr;
__u8 chunks[0];
-} __packed sctp_chunks_param_t;
+} sctp_chunks_param_t;
/* AUTH Section 3.3 HMAC Algorithm */
typedef struct sctp_hmac_algo_param {
- sctp_paramhdr_t param_hdr;
+ struct sctp_paramhdr param_hdr;
__be16 hmac_ids[0];
-} __packed sctp_hmac_algo_param_t;
+} sctp_hmac_algo_param_t;
/* RFC 2960. Section 3.3.3 Initiation Acknowledgement (INIT ACK) (2):
* The INIT ACK chunk is used to acknowledge the initiation of an SCTP
* association.
*/
-typedef sctp_init_chunk_t sctp_initack_chunk_t;
+typedef struct sctp_init_chunk sctp_initack_chunk_t;
/* Section 3.3.3.1 State Cookie (7) */
typedef struct sctp_cookie_param {
- sctp_paramhdr_t p;
+ struct sctp_paramhdr p;
__u8 body[0];
-} __packed sctp_cookie_param_t;
+} sctp_cookie_param_t;
/* Section 3.3.3.1 Unrecognized Parameters (8) */
typedef struct sctp_unrecognized_param {
- sctp_paramhdr_t param_hdr;
- sctp_paramhdr_t unrecognized;
-} __packed sctp_unrecognized_param_t;
+ struct sctp_paramhdr param_hdr;
+ struct sctp_paramhdr unrecognized;
+} sctp_unrecognized_param_t;
@@ -360,7 +368,7 @@ typedef struct sctp_unrecognized_param {
typedef struct sctp_gap_ack_block {
__be16 start;
__be16 end;
-} __packed sctp_gap_ack_block_t;
+} sctp_gap_ack_block_t;
typedef __be32 sctp_dup_tsn_t;
@@ -375,12 +383,12 @@ typedef struct sctp_sackhdr {
__be16 num_gap_ack_blocks;
__be16 num_dup_tsns;
sctp_sack_variable_t variable[0];
-} __packed sctp_sackhdr_t;
+} sctp_sackhdr_t;
typedef struct sctp_sack_chunk {
- sctp_chunkhdr_t chunk_hdr;
+ struct sctp_chunkhdr chunk_hdr;
sctp_sackhdr_t sack_hdr;
-} __packed sctp_sack_chunk_t;
+} sctp_sack_chunk_t;
/* RFC 2960. Section 3.3.5 Heartbeat Request (HEARTBEAT) (4):
@@ -391,13 +399,13 @@ typedef struct sctp_sack_chunk {
*/
typedef struct sctp_heartbeathdr {
- sctp_paramhdr_t info;
-} __packed sctp_heartbeathdr_t;
+ struct sctp_paramhdr info;
+} sctp_heartbeathdr_t;
typedef struct sctp_heartbeat_chunk {
- sctp_chunkhdr_t chunk_hdr;
+ struct sctp_chunkhdr chunk_hdr;
sctp_heartbeathdr_t hb_hdr;
-} __packed sctp_heartbeat_chunk_t;
+} sctp_heartbeat_chunk_t;
/* For the abort and shutdown ACK we must carry the init tag in the
@@ -405,8 +413,8 @@ typedef struct sctp_heartbeat_chunk {
* chunk descriptor.
*/
typedef struct sctp_abort_chunk {
- sctp_chunkhdr_t uh;
-} __packed sctp_abort_chunk_t;
+ struct sctp_chunkhdr uh;
+} sctp_abort_chunk_t;
/* For the graceful shutdown we must carry the tag (in common header)
@@ -414,12 +422,12 @@ typedef struct sctp_abort_chunk {
*/
typedef struct sctp_shutdownhdr {
__be32 cum_tsn_ack;
-} __packed sctp_shutdownhdr_t;
+} sctp_shutdownhdr_t;
struct sctp_shutdown_chunk_t {
- sctp_chunkhdr_t chunk_hdr;
- sctp_shutdownhdr_t shutdown_hdr;
-} __packed;
+ struct sctp_chunkhdr chunk_hdr;
+ sctp_shutdownhdr_t shutdown_hdr;
+};
/* RFC 2960. Section 3.3.10 Operation Error (ERROR) (9) */
@@ -427,12 +435,12 @@ typedef struct sctp_errhdr {
__be16 cause;
__be16 length;
__u8 variable[0];
-} __packed sctp_errhdr_t;
+} sctp_errhdr_t;
typedef struct sctp_operr_chunk {
- sctp_chunkhdr_t chunk_hdr;
- sctp_errhdr_t err_hdr;
-} __packed sctp_operr_chunk_t;
+ struct sctp_chunkhdr chunk_hdr;
+ sctp_errhdr_t err_hdr;
+} sctp_operr_chunk_t;
/* RFC 2960 3.3.10 - Operation Error
*
@@ -520,9 +528,9 @@ typedef struct sctp_ecnehdr {
} sctp_ecnehdr_t;
typedef struct sctp_ecne_chunk {
- sctp_chunkhdr_t chunk_hdr;
+ struct sctp_chunkhdr chunk_hdr;
sctp_ecnehdr_t ence_hdr;
-} __packed sctp_ecne_chunk_t;
+} sctp_ecne_chunk_t;
/* RFC 2960. Appendix A. Explicit Congestion Notification.
* Congestion Window Reduced (CWR) (13)
@@ -532,9 +540,9 @@ typedef struct sctp_cwrhdr {
} sctp_cwrhdr_t;
typedef struct sctp_cwr_chunk {
- sctp_chunkhdr_t chunk_hdr;
+ struct sctp_chunkhdr chunk_hdr;
sctp_cwrhdr_t cwr_hdr;
-} __packed sctp_cwr_chunk_t;
+} sctp_cwr_chunk_t;
/* PR-SCTP
* 3.2 Forward Cumulative TSN Chunk Definition (FORWARD TSN)
@@ -585,17 +593,17 @@ typedef struct sctp_cwr_chunk {
struct sctp_fwdtsn_skip {
__be16 stream;
__be16 ssn;
-} __packed;
+};
struct sctp_fwdtsn_hdr {
__be32 new_cum_tsn;
struct sctp_fwdtsn_skip skip[0];
-} __packed;
+};
struct sctp_fwdtsn_chunk {
struct sctp_chunkhdr chunk_hdr;
struct sctp_fwdtsn_hdr fwdtsn_hdr;
-} __packed;
+};
/* ADDIP
@@ -631,19 +639,19 @@ struct sctp_fwdtsn_chunk {
* report status of ASCONF processing.
*/
typedef struct sctp_addip_param {
- sctp_paramhdr_t param_hdr;
+ struct sctp_paramhdr param_hdr;
__be32 crr_id;
-} __packed sctp_addip_param_t;
+} sctp_addip_param_t;
typedef struct sctp_addiphdr {
__be32 serial;
__u8 params[0];
-} __packed sctp_addiphdr_t;
+} sctp_addiphdr_t;
typedef struct sctp_addip_chunk {
- sctp_chunkhdr_t chunk_hdr;
+ struct sctp_chunkhdr chunk_hdr;
sctp_addiphdr_t addip_hdr;
-} __packed sctp_addip_chunk_t;
+} sctp_addip_chunk_t;
/* AUTH
* Section 4.1 Authentication Chunk (AUTH)
@@ -698,16 +706,71 @@ typedef struct sctp_authhdr {
__be16 shkey_id;
__be16 hmac_id;
__u8 hmac[0];
-} __packed sctp_authhdr_t;
+} sctp_authhdr_t;
typedef struct sctp_auth_chunk {
- sctp_chunkhdr_t chunk_hdr;
+ struct sctp_chunkhdr chunk_hdr;
sctp_authhdr_t auth_hdr;
-} __packed sctp_auth_chunk_t;
+} sctp_auth_chunk_t;
struct sctp_infox {
struct sctp_info *sctpinfo;
struct sctp_association *asoc;
};
+struct sctp_reconf_chunk {
+ struct sctp_chunkhdr chunk_hdr;
+ __u8 params[0];
+};
+
+struct sctp_strreset_outreq {
+ struct sctp_paramhdr param_hdr;
+ __u32 request_seq;
+ __u32 response_seq;
+ __u32 send_reset_at_tsn;
+ __u16 list_of_streams[0];
+};
+
+struct sctp_strreset_inreq {
+ struct sctp_paramhdr param_hdr;
+ __u32 request_seq;
+ __u16 list_of_streams[0];
+};
+
+struct sctp_strreset_tsnreq {
+ struct sctp_paramhdr param_hdr;
+ __u32 request_seq;
+};
+
+struct sctp_strreset_addstrm {
+ struct sctp_paramhdr param_hdr;
+ __u32 request_seq;
+ __u16 number_of_streams;
+ __u16 reserved;
+};
+
+enum {
+ SCTP_STRRESET_NOTHING_TO_DO = 0x00,
+ SCTP_STRRESET_PERFORMED = 0x01,
+ SCTP_STRRESET_DENIED = 0x02,
+ SCTP_STRRESET_ERR_WRONG_SSN = 0x03,
+ SCTP_STRRESET_ERR_IN_PROGRESS = 0x04,
+ SCTP_STRRESET_ERR_BAD_SEQNO = 0x05,
+ SCTP_STRRESET_IN_PROGRESS = 0x06,
+};
+
+struct sctp_strreset_resp {
+ struct sctp_paramhdr param_hdr;
+ __u32 response_seq;
+ __u32 result;
+};
+
+struct sctp_strreset_resptsn {
+ struct sctp_paramhdr param_hdr;
+ __u32 response_seq;
+ __u32 result;
+ __u32 senders_next_tsn;
+ __u32 receivers_next_tsn;
+};
+
#endif /* __LINUX_SCTP_H__ */
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