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authorSamuel Thibault <samuel.thibault@ens-lyon.org>2013-07-27 22:07:53 +0000
committerSamuel Thibault <samuel.thibault@ens-lyon.org>2013-07-27 22:07:53 +0000
commit4fbe7358c7747a9165f776eb19addbb9baf7def2 (patch)
treebc7076b4f6d10c2cc2942539bb666e50f0b66954 /libdde_linux26/contrib/include/linux/dccp.h
parent21adb5284111190057db245cfc2b54091920c373 (diff)
rename libdde_linux26 into libdde-linux26 to make dpkg-source happy
Diffstat (limited to 'libdde_linux26/contrib/include/linux/dccp.h')
-rw-r--r--libdde_linux26/contrib/include/linux/dccp.h567
1 files changed, 0 insertions, 567 deletions
diff --git a/libdde_linux26/contrib/include/linux/dccp.h b/libdde_linux26/contrib/include/linux/dccp.h
deleted file mode 100644
index 61734e27..00000000
--- a/libdde_linux26/contrib/include/linux/dccp.h
+++ /dev/null
@@ -1,567 +0,0 @@
-#ifndef _LINUX_DCCP_H
-#define _LINUX_DCCP_H
-
-#include <linux/types.h>
-#include <asm/byteorder.h>
-
-/**
- * struct dccp_hdr - generic part of DCCP packet header
- *
- * @dccph_sport - Relevant port on the endpoint that sent this packet
- * @dccph_dport - Relevant port on the other endpoint
- * @dccph_doff - Data Offset from the start of the DCCP header, in 32-bit words
- * @dccph_ccval - Used by the HC-Sender CCID
- * @dccph_cscov - Parts of the packet that are covered by the Checksum field
- * @dccph_checksum - Internet checksum, depends on dccph_cscov
- * @dccph_x - 0 = 24 bit sequence number, 1 = 48
- * @dccph_type - packet type, see DCCP_PKT_ prefixed macros
- * @dccph_seq - sequence number high or low order 24 bits, depends on dccph_x
- */
-struct dccp_hdr {
- __be16 dccph_sport,
- dccph_dport;
- __u8 dccph_doff;
-#if defined(__LITTLE_ENDIAN_BITFIELD)
- __u8 dccph_cscov:4,
- dccph_ccval:4;
-#elif defined(__BIG_ENDIAN_BITFIELD)
- __u8 dccph_ccval:4,
- dccph_cscov:4;
-#else
-#error "Adjust your <asm/byteorder.h> defines"
-#endif
- __sum16 dccph_checksum;
-#if defined(__LITTLE_ENDIAN_BITFIELD)
- __u8 dccph_x:1,
- dccph_type:4,
- dccph_reserved:3;
-#elif defined(__BIG_ENDIAN_BITFIELD)
- __u8 dccph_reserved:3,
- dccph_type:4,
- dccph_x:1;
-#else
-#error "Adjust your <asm/byteorder.h> defines"
-#endif
- __u8 dccph_seq2;
- __be16 dccph_seq;
-};
-
-/**
- * struct dccp_hdr_ext - the low bits of a 48 bit seq packet
- *
- * @dccph_seq_low - low 24 bits of a 48 bit seq packet
- */
-struct dccp_hdr_ext {
- __be32 dccph_seq_low;
-};
-
-/**
- * struct dccp_hdr_request - Connection initiation request header
- *
- * @dccph_req_service - Service to which the client app wants to connect
- */
-struct dccp_hdr_request {
- __be32 dccph_req_service;
-};
-/**
- * struct dccp_hdr_ack_bits - acknowledgment bits common to most packets
- *
- * @dccph_resp_ack_nr_high - 48 bit ack number high order bits, contains GSR
- * @dccph_resp_ack_nr_low - 48 bit ack number low order bits, contains GSR
- */
-struct dccp_hdr_ack_bits {
- __be16 dccph_reserved1;
- __be16 dccph_ack_nr_high;
- __be32 dccph_ack_nr_low;
-};
-/**
- * struct dccp_hdr_response - Connection initiation response header
- *
- * @dccph_resp_ack - 48 bit Acknowledgment Number Subheader (5.3)
- * @dccph_resp_service - Echoes the Service Code on a received DCCP-Request
- */
-struct dccp_hdr_response {
- struct dccp_hdr_ack_bits dccph_resp_ack;
- __be32 dccph_resp_service;
-};
-
-/**
- * struct dccp_hdr_reset - Unconditionally shut down a connection
- *
- * @dccph_reset_ack - 48 bit Acknowledgment Number Subheader (5.6)
- * @dccph_reset_code - one of %dccp_reset_codes
- * @dccph_reset_data - the Data 1 ... Data 3 fields from 5.6
- */
-struct dccp_hdr_reset {
- struct dccp_hdr_ack_bits dccph_reset_ack;
- __u8 dccph_reset_code,
- dccph_reset_data[3];
-};
-
-enum dccp_pkt_type {
- DCCP_PKT_REQUEST = 0,
- DCCP_PKT_RESPONSE,
- DCCP_PKT_DATA,
- DCCP_PKT_ACK,
- DCCP_PKT_DATAACK,
- DCCP_PKT_CLOSEREQ,
- DCCP_PKT_CLOSE,
- DCCP_PKT_RESET,
- DCCP_PKT_SYNC,
- DCCP_PKT_SYNCACK,
- DCCP_PKT_INVALID,
-};
-
-#define DCCP_NR_PKT_TYPES DCCP_PKT_INVALID
-
-static inline unsigned int dccp_packet_hdr_len(const __u8 type)
-{
- if (type == DCCP_PKT_DATA)
- return 0;
- if (type == DCCP_PKT_DATAACK ||
- type == DCCP_PKT_ACK ||
- type == DCCP_PKT_SYNC ||
- type == DCCP_PKT_SYNCACK ||
- type == DCCP_PKT_CLOSE ||
- type == DCCP_PKT_CLOSEREQ)
- return sizeof(struct dccp_hdr_ack_bits);
- if (type == DCCP_PKT_REQUEST)
- return sizeof(struct dccp_hdr_request);
- if (type == DCCP_PKT_RESPONSE)
- return sizeof(struct dccp_hdr_response);
- return sizeof(struct dccp_hdr_reset);
-}
-enum dccp_reset_codes {
- DCCP_RESET_CODE_UNSPECIFIED = 0,
- DCCP_RESET_CODE_CLOSED,
- DCCP_RESET_CODE_ABORTED,
- DCCP_RESET_CODE_NO_CONNECTION,
- DCCP_RESET_CODE_PACKET_ERROR,
- DCCP_RESET_CODE_OPTION_ERROR,
- DCCP_RESET_CODE_MANDATORY_ERROR,
- DCCP_RESET_CODE_CONNECTION_REFUSED,
- DCCP_RESET_CODE_BAD_SERVICE_CODE,
- DCCP_RESET_CODE_TOO_BUSY,
- DCCP_RESET_CODE_BAD_INIT_COOKIE,
- DCCP_RESET_CODE_AGGRESSION_PENALTY,
-
- DCCP_MAX_RESET_CODES /* Leave at the end! */
-};
-
-/* DCCP options */
-enum {
- DCCPO_PADDING = 0,
- DCCPO_MANDATORY = 1,
- DCCPO_MIN_RESERVED = 3,
- DCCPO_MAX_RESERVED = 31,
- DCCPO_CHANGE_L = 32,
- DCCPO_CONFIRM_L = 33,
- DCCPO_CHANGE_R = 34,
- DCCPO_CONFIRM_R = 35,
- DCCPO_NDP_COUNT = 37,
- DCCPO_ACK_VECTOR_0 = 38,
- DCCPO_ACK_VECTOR_1 = 39,
- DCCPO_TIMESTAMP = 41,
- DCCPO_TIMESTAMP_ECHO = 42,
- DCCPO_ELAPSED_TIME = 43,
- DCCPO_MAX = 45,
- DCCPO_MIN_CCID_SPECIFIC = 128,
- DCCPO_MAX_CCID_SPECIFIC = 255,
-};
-/* maximum size of a single TLV-encoded DCCP option (sans type/len bytes) */
-#define DCCP_SINGLE_OPT_MAXLEN 253
-
-/* DCCP CCIDS */
-enum {
- DCCPC_CCID2 = 2,
- DCCPC_CCID3 = 3,
-};
-
-/* DCCP features (RFC 4340 section 6.4) */
-enum dccp_feature_numbers {
- DCCPF_RESERVED = 0,
- DCCPF_CCID = 1,
- DCCPF_SHORT_SEQNOS = 2,
- DCCPF_SEQUENCE_WINDOW = 3,
- DCCPF_ECN_INCAPABLE = 4,
- DCCPF_ACK_RATIO = 5,
- DCCPF_SEND_ACK_VECTOR = 6,
- DCCPF_SEND_NDP_COUNT = 7,
- DCCPF_MIN_CSUM_COVER = 8,
- DCCPF_DATA_CHECKSUM = 9,
- /* 10-127 reserved */
- DCCPF_MIN_CCID_SPECIFIC = 128,
- DCCPF_SEND_LEV_RATE = 192, /* RFC 4342, sec. 8.4 */
- DCCPF_MAX_CCID_SPECIFIC = 255,
-};
-
-/* DCCP socket options */
-#define DCCP_SOCKOPT_PACKET_SIZE 1 /* XXX deprecated, without effect */
-#define DCCP_SOCKOPT_SERVICE 2
-#define DCCP_SOCKOPT_CHANGE_L 3
-#define DCCP_SOCKOPT_CHANGE_R 4
-#define DCCP_SOCKOPT_GET_CUR_MPS 5
-#define DCCP_SOCKOPT_SERVER_TIMEWAIT 6
-#define DCCP_SOCKOPT_SEND_CSCOV 10
-#define DCCP_SOCKOPT_RECV_CSCOV 11
-#define DCCP_SOCKOPT_AVAILABLE_CCIDS 12
-#define DCCP_SOCKOPT_CCID 13
-#define DCCP_SOCKOPT_TX_CCID 14
-#define DCCP_SOCKOPT_RX_CCID 15
-#define DCCP_SOCKOPT_CCID_RX_INFO 128
-#define DCCP_SOCKOPT_CCID_TX_INFO 192
-
-/* maximum number of services provided on the same listening port */
-#define DCCP_SERVICE_LIST_MAX_LEN 32
-
-#ifdef __KERNEL__
-
-#include <linux/in.h>
-#include <linux/ktime.h>
-#include <linux/list.h>
-#include <linux/uio.h>
-#include <linux/workqueue.h>
-
-#include <net/inet_connection_sock.h>
-#include <net/inet_sock.h>
-#include <net/inet_timewait_sock.h>
-#include <net/tcp_states.h>
-
-enum dccp_state {
- DCCP_OPEN = TCP_ESTABLISHED,
- DCCP_REQUESTING = TCP_SYN_SENT,
- DCCP_LISTEN = TCP_LISTEN,
- DCCP_RESPOND = TCP_SYN_RECV,
- /*
- * States involved in closing a DCCP connection:
- * 1) ACTIVE_CLOSEREQ is entered by a server sending a CloseReq.
- *
- * 2) CLOSING can have three different meanings (RFC 4340, 8.3):
- * a. Client has performed active-close, has sent a Close to the server
- * from state OPEN or PARTOPEN, and is waiting for the final Reset
- * (in this case, SOCK_DONE == 1).
- * b. Client is asked to perform passive-close, by receiving a CloseReq
- * in (PART)OPEN state. It sends a Close and waits for final Reset
- * (in this case, SOCK_DONE == 0).
- * c. Server performs an active-close as in (a), keeps TIMEWAIT state.
- *
- * 3) The following intermediate states are employed to give passively
- * closing nodes a chance to process their unread data:
- * - PASSIVE_CLOSE (from OPEN => CLOSED) and
- * - PASSIVE_CLOSEREQ (from (PART)OPEN to CLOSING; case (b) above).
- */
- DCCP_ACTIVE_CLOSEREQ = TCP_FIN_WAIT1,
- DCCP_PASSIVE_CLOSE = TCP_CLOSE_WAIT, /* any node receiving a Close */
- DCCP_CLOSING = TCP_CLOSING,
- DCCP_TIME_WAIT = TCP_TIME_WAIT,
- DCCP_CLOSED = TCP_CLOSE,
- DCCP_PARTOPEN = TCP_MAX_STATES,
- DCCP_PASSIVE_CLOSEREQ, /* clients receiving CloseReq */
- DCCP_MAX_STATES
-};
-
-#define DCCP_STATE_MASK 0x1f
-
-enum {
- DCCPF_OPEN = TCPF_ESTABLISHED,
- DCCPF_REQUESTING = TCPF_SYN_SENT,
- DCCPF_LISTEN = TCPF_LISTEN,
- DCCPF_RESPOND = TCPF_SYN_RECV,
- DCCPF_ACTIVE_CLOSEREQ = TCPF_FIN_WAIT1,
- DCCPF_CLOSING = TCPF_CLOSING,
- DCCPF_TIME_WAIT = TCPF_TIME_WAIT,
- DCCPF_CLOSED = TCPF_CLOSE,
- DCCPF_PARTOPEN = (1 << DCCP_PARTOPEN),
-};
-
-static inline struct dccp_hdr *dccp_hdr(const struct sk_buff *skb)
-{
- return (struct dccp_hdr *)skb_transport_header(skb);
-}
-
-static inline struct dccp_hdr *dccp_zeroed_hdr(struct sk_buff *skb, int headlen)
-{
- skb_push(skb, headlen);
- skb_reset_transport_header(skb);
- return memset(skb_transport_header(skb), 0, headlen);
-}
-
-static inline struct dccp_hdr_ext *dccp_hdrx(const struct dccp_hdr *dh)
-{
- return (struct dccp_hdr_ext *)((unsigned char *)dh + sizeof(*dh));
-}
-
-static inline unsigned int __dccp_basic_hdr_len(const struct dccp_hdr *dh)
-{
- return sizeof(*dh) + (dh->dccph_x ? sizeof(struct dccp_hdr_ext) : 0);
-}
-
-static inline unsigned int dccp_basic_hdr_len(const struct sk_buff *skb)
-{
- const struct dccp_hdr *dh = dccp_hdr(skb);
- return __dccp_basic_hdr_len(dh);
-}
-
-static inline __u64 dccp_hdr_seq(const struct dccp_hdr *dh)
-{
- __u64 seq_nr = ntohs(dh->dccph_seq);
-
- if (dh->dccph_x != 0)
- seq_nr = (seq_nr << 32) + ntohl(dccp_hdrx(dh)->dccph_seq_low);
- else
- seq_nr += (u32)dh->dccph_seq2 << 16;
-
- return seq_nr;
-}
-
-static inline struct dccp_hdr_request *dccp_hdr_request(struct sk_buff *skb)
-{
- return (struct dccp_hdr_request *)(skb_transport_header(skb) +
- dccp_basic_hdr_len(skb));
-}
-
-static inline struct dccp_hdr_ack_bits *dccp_hdr_ack_bits(const struct sk_buff *skb)
-{
- return (struct dccp_hdr_ack_bits *)(skb_transport_header(skb) +
- dccp_basic_hdr_len(skb));
-}
-
-static inline u64 dccp_hdr_ack_seq(const struct sk_buff *skb)
-{
- const struct dccp_hdr_ack_bits *dhack = dccp_hdr_ack_bits(skb);
- return ((u64)ntohs(dhack->dccph_ack_nr_high) << 32) + ntohl(dhack->dccph_ack_nr_low);
-}
-
-static inline struct dccp_hdr_response *dccp_hdr_response(struct sk_buff *skb)
-{
- return (struct dccp_hdr_response *)(skb_transport_header(skb) +
- dccp_basic_hdr_len(skb));
-}
-
-static inline struct dccp_hdr_reset *dccp_hdr_reset(struct sk_buff *skb)
-{
- return (struct dccp_hdr_reset *)(skb_transport_header(skb) +
- dccp_basic_hdr_len(skb));
-}
-
-static inline unsigned int __dccp_hdr_len(const struct dccp_hdr *dh)
-{
- return __dccp_basic_hdr_len(dh) +
- dccp_packet_hdr_len(dh->dccph_type);
-}
-
-static inline unsigned int dccp_hdr_len(const struct sk_buff *skb)
-{
- return __dccp_hdr_len(dccp_hdr(skb));
-}
-
-
-/* initial values for each feature */
-#define DCCPF_INITIAL_SEQUENCE_WINDOW 100
-#define DCCPF_INITIAL_ACK_RATIO 2
-#define DCCPF_INITIAL_CCID DCCPC_CCID2
-/* FIXME: for now we're default to 1 but it should really be 0 */
-#define DCCPF_INITIAL_SEND_NDP_COUNT 1
-
-/**
- * struct dccp_minisock - Minimal DCCP connection representation
- *
- * Will be used to pass the state from dccp_request_sock to dccp_sock.
- *
- * @dccpms_sequence_window - Sequence Window Feature (section 7.5.2)
- * @dccpms_pending - List of features being negotiated
- * @dccpms_conf -
- */
-struct dccp_minisock {
- __u64 dccpms_sequence_window;
- struct list_head dccpms_pending;
- struct list_head dccpms_conf;
-};
-
-struct dccp_opt_conf {
- __u8 *dccpoc_val;
- __u8 dccpoc_len;
-};
-
-struct dccp_opt_pend {
- struct list_head dccpop_node;
- __u8 dccpop_type;
- __u8 dccpop_feat;
- __u8 *dccpop_val;
- __u8 dccpop_len;
- int dccpop_conf;
- struct dccp_opt_conf *dccpop_sc;
-};
-
-extern void dccp_minisock_init(struct dccp_minisock *dmsk);
-
-/**
- * struct dccp_request_sock - represent DCCP-specific connection request
- * @dreq_inet_rsk: structure inherited from
- * @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
- */
-struct dccp_request_sock {
- struct inet_request_sock dreq_inet_rsk;
- __u64 dreq_iss;
- __u64 dreq_isr;
- __be32 dreq_service;
- struct list_head dreq_featneg;
- __u32 dreq_timestamp_echo;
- __u32 dreq_timestamp_time;
-};
-
-static inline struct dccp_request_sock *dccp_rsk(const struct request_sock *req)
-{
- return (struct dccp_request_sock *)req;
-}
-
-extern struct inet_timewait_death_row dccp_death_row;
-
-extern int dccp_parse_options(struct sock *sk, struct dccp_request_sock *dreq,
- struct sk_buff *skb);
-
-struct dccp_options_received {
- u64 dccpor_ndp:48;
- u32 dccpor_timestamp;
- u32 dccpor_timestamp_echo;
- u32 dccpor_elapsed_time;
-};
-
-struct ccid;
-
-enum dccp_role {
- DCCP_ROLE_UNDEFINED,
- DCCP_ROLE_LISTEN,
- DCCP_ROLE_CLIENT,
- DCCP_ROLE_SERVER,
-};
-
-struct dccp_service_list {
- __u32 dccpsl_nr;
- __be32 dccpsl_list[0];
-};
-
-#define DCCP_SERVICE_INVALID_VALUE htonl((__u32)-1)
-#define DCCP_SERVICE_CODE_IS_ABSENT 0
-
-static inline int dccp_list_has_service(const struct dccp_service_list *sl,
- const __be32 service)
-{
- if (likely(sl != NULL)) {
- u32 i = sl->dccpsl_nr;
- while (i--)
- if (sl->dccpsl_list[i] == service)
- return 1;
- }
- return 0;
-}
-
-struct dccp_ackvec;
-
-/**
- * struct dccp_sock - DCCP socket state
- *
- * @dccps_swl - sequence number window low
- * @dccps_swh - sequence number window high
- * @dccps_awl - acknowledgement number window low
- * @dccps_awh - acknowledgement number window high
- * @dccps_iss - initial sequence number sent
- * @dccps_isr - initial sequence number received
- * @dccps_osr - first OPEN sequence number received
- * @dccps_gss - greatest sequence number sent
- * @dccps_gsr - greatest valid sequence number received
- * @dccps_gar - greatest valid ack number received on a non-Sync; initialized to %dccps_iss
- * @dccps_service - first (passive sock) or unique (active sock) service code
- * @dccps_service_list - second .. last service code on passive socket
- * @dccps_timestamp_echo - latest timestamp received on a TIMESTAMP option
- * @dccps_timestamp_time - time of receiving latest @dccps_timestamp_echo
- * @dccps_l_ack_ratio - feature-local Ack Ratio
- * @dccps_r_ack_ratio - feature-remote Ack Ratio
- * @dccps_pcslen - sender partial checksum coverage (via sockopt)
- * @dccps_pcrlen - receiver partial checksum coverage (via sockopt)
- * @dccps_send_ndp_count - local Send NDP Count feature (7.7.2)
- * @dccps_ndp_count - number of Non Data Packets since last data packet
- * @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_options_received - parsed set of retrieved options
- * @dccps_role - role of this sock, one of %dccp_role
- * @dccps_hc_rx_insert_options - receiver wants to add options when acking
- * @dccps_hc_tx_insert_options - sender wants to add options when sending
- * @dccps_server_timewait - server holds timewait state on close (RFC 4340, 8.3)
- * @dccps_xmit_timer - timer for when CCID is not ready to send
- * @dccps_syn_rtt - RTT sample from Request/Response exchange (in usecs)
- */
-struct dccp_sock {
- /* inet_connection_sock has to be the first member of dccp_sock */
- struct inet_connection_sock dccps_inet_connection;
-#define dccps_syn_rtt dccps_inet_connection.icsk_ack.lrcvtime
- __u64 dccps_swl;
- __u64 dccps_swh;
- __u64 dccps_awl;
- __u64 dccps_awh;
- __u64 dccps_iss;
- __u64 dccps_isr;
- __u64 dccps_osr;
- __u64 dccps_gss;
- __u64 dccps_gsr;
- __u64 dccps_gar;
- __be32 dccps_service;
- __u32 dccps_mss_cache;
- struct dccp_service_list *dccps_service_list;
- __u32 dccps_timestamp_echo;
- __u32 dccps_timestamp_time;
- __u16 dccps_l_ack_ratio;
- __u16 dccps_r_ack_ratio;
- __u8 dccps_pcslen:4;
- __u8 dccps_pcrlen:4;
- __u8 dccps_send_ndp_count:1;
- __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_options_received dccps_options_received;
- enum dccp_role dccps_role:2;
- __u8 dccps_hc_rx_insert_options:1;
- __u8 dccps_hc_tx_insert_options:1;
- __u8 dccps_server_timewait:1;
- struct timer_list dccps_xmit_timer;
-};
-
-static inline struct dccp_sock *dccp_sk(const struct sock *sk)
-{
- return (struct dccp_sock *)sk;
-}
-
-static inline struct dccp_minisock *dccp_msk(const struct sock *sk)
-{
- return (struct dccp_minisock *)&dccp_sk(sk)->dccps_minisock;
-}
-
-static inline const char *dccp_role(const struct sock *sk)
-{
- switch (dccp_sk(sk)->dccps_role) {
- case DCCP_ROLE_UNDEFINED: return "undefined";
- case DCCP_ROLE_LISTEN: return "listen";
- case DCCP_ROLE_SERVER: return "server";
- case DCCP_ROLE_CLIENT: return "client";
- }
- return NULL;
-}
-
-#endif /* __KERNEL__ */
-
-#endif /* _LINUX_DCCP_H */