Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 589 insertions, 0 deletions

diff --git a/include/net/sctp/user.h b/include/net/sctp/user.h
new file mode 100644
index 000000000000..2758e8ce4f25
--- /dev/null
+++ b/include/net/sctp/user.h
@@ -0,0 +1,589 @@
+/* SCTP kernel reference Implementation
+ * (C) Copyright IBM Corp. 2001, 2004
+ * Copyright (c) 1999-2000 Cisco, Inc.
+ * Copyright (c) 1999-2001 Motorola, Inc.
+ * Copyright (c) 2002 Intel Corp.
+ *
+ * This file is part of the SCTP kernel reference Implementation
+ *
+ * This header represents the structures and constants needed to support
+ * the SCTP Extension to the Sockets API.
+ *
+ * The SCTP reference implementation is free software;
+ * you can redistribute it and/or modify it under the terms of
+ * the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * The SCTP reference implementation is distributed in the hope that it
+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
+ *                 ************************
+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU CC; see the file COPYING.  If not, write to
+ * the Free Software Foundation, 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ * Please send any bug reports or fixes you make to the
+ * email address(es):
+ *    lksctp developers <lksctp-developers@lists.sourceforge.net>
+ *
+ * Or submit a bug report through the following website:
+ *    http://www.sf.net/projects/lksctp
+ *
+ * Written or modified by:
+ *    La Monte H.P. Yarroll    <piggy@acm.org>
+ *    R. Stewart               <randall@sctp.chicago.il.us>
+ *    K. Morneau               <kmorneau@cisco.com>
+ *    Q. Xie                   <qxie1@email.mot.com>
+ *    Karl Knutson             <karl@athena.chicago.il.us>
+ *    Jon Grimm                <jgrimm@us.ibm.com>
+ *    Daisy Chang              <daisyc@us.ibm.com>
+ *    Ryan Layer               <rmlayer@us.ibm.com>
+ *    Ardelle Fan	       <ardelle.fan@intel.com>
+ *    Sridhar Samudrala        <sri@us.ibm.com>
+ *
+ * Any bugs reported given to us we will try to fix... any fixes shared will
+ * be incorporated into the next SCTP release.
+ */
+
+#ifndef __net_sctp_user_h__
+#define __net_sctp_user_h__
+
+#include <linux/types.h>
+#include <linux/socket.h>
+
+typedef __s32 sctp_assoc_t;
+
+/* The following symbols come from the Sockets API Extensions for
+ * SCTP <draft-ietf-tsvwg-sctpsocket-07.txt>.
+ */
+enum sctp_optname {
+	SCTP_RTOINFO,
+#define SCTP_RTOINFO SCTP_RTOINFO
+	SCTP_ASSOCINFO,
+#define SCTP_ASSOCINFO SCTP_ASSOCINFO
+	SCTP_INITMSG,
+#define SCTP_INITMSG SCTP_INITMSG
+	SCTP_NODELAY, 	/* Get/set nodelay option. */
+#define SCTP_NODELAY	SCTP_NODELAY
+	SCTP_AUTOCLOSE,
+#define SCTP_AUTOCLOSE SCTP_AUTOCLOSE
+	SCTP_SET_PEER_PRIMARY_ADDR, 
+#define SCTP_SET_PEER_PRIMARY_ADDR SCTP_SET_PEER_PRIMARY_ADDR
+	SCTP_PRIMARY_ADDR,
+#define SCTP_PRIMARY_ADDR SCTP_PRIMARY_ADDR
+	SCTP_ADAPTION_LAYER,      
+#define SCTP_ADAPTION_LAYER SCTP_ADAPTION_LAYER
+	SCTP_DISABLE_FRAGMENTS,
+#define SCTP_DISABLE_FRAGMENTS SCTP_DISABLE_FRAGMENTS
+	SCTP_PEER_ADDR_PARAMS,
+#define SCTP_PEER_ADDR_PARAMS SCTP_PEER_ADDR_PARAMS
+	SCTP_DEFAULT_SEND_PARAM,
+#define SCTP_DEFAULT_SEND_PARAM SCTP_DEFAULT_SEND_PARAM
+	SCTP_EVENTS,
+#define SCTP_EVENTS SCTP_EVENTS
+	SCTP_I_WANT_MAPPED_V4_ADDR,  /* Turn on/off mapped v4 addresses  */
+#define SCTP_I_WANT_MAPPED_V4_ADDR SCTP_I_WANT_MAPPED_V4_ADDR
+	SCTP_MAXSEG, 	/* Get/set maximum fragment. */
+#define SCTP_MAXSEG 	SCTP_MAXSEG
+	SCTP_STATUS,
+#define SCTP_STATUS SCTP_STATUS
+	SCTP_GET_PEER_ADDR_INFO,
+#define SCTP_GET_PEER_ADDR_INFO SCTP_GET_PEER_ADDR_INFO
+
+	/* Internal Socket Options. Some of the sctp library functions are 
+	 * implemented using these socket options.
+	 */
+	SCTP_SOCKOPT_BINDX_ADD = 100,/* BINDX requests for adding addresses. */
+#define SCTP_SOCKOPT_BINDX_ADD	SCTP_SOCKOPT_BINDX_ADD
+	SCTP_SOCKOPT_BINDX_REM, /* BINDX requests for removing addresses. */
+#define SCTP_SOCKOPT_BINDX_REM	SCTP_SOCKOPT_BINDX_REM
+	SCTP_SOCKOPT_PEELOFF, 	/* peel off association. */
+#define SCTP_SOCKOPT_PEELOFF	SCTP_SOCKOPT_PEELOFF
+	SCTP_GET_PEER_ADDRS_NUM, 	/* Get number of peer addresss. */
+#define SCTP_GET_PEER_ADDRS_NUM	SCTP_GET_PEER_ADDRS_NUM
+	SCTP_GET_PEER_ADDRS, 	/* Get all peer addresss. */
+#define SCTP_GET_PEER_ADDRS	SCTP_GET_PEER_ADDRS
+	SCTP_GET_LOCAL_ADDRS_NUM, 	/* Get number of local addresss. */
+#define SCTP_GET_LOCAL_ADDRS_NUM	SCTP_GET_LOCAL_ADDRS_NUM
+	SCTP_GET_LOCAL_ADDRS, 	/* Get all local addresss. */
+#define SCTP_GET_LOCAL_ADDRS	SCTP_GET_LOCAL_ADDRS
+};
+
+/*
+ * 5.2.1 SCTP Initiation Structure (SCTP_INIT)
+ *
+ *   This cmsghdr structure provides information for initializing new
+ *   SCTP associations with sendmsg().  The SCTP_INITMSG socket option
+ *   uses this same data structure.  This structure is not used for
+ *   recvmsg().
+ *
+ *   cmsg_level    cmsg_type      cmsg_data[]
+ *   ------------  ------------   ----------------------
+ *   IPPROTO_SCTP  SCTP_INIT      struct sctp_initmsg
+ *
+ */
+struct sctp_initmsg {
+	__u16 sinit_num_ostreams;
+	__u16 sinit_max_instreams;
+	__u16 sinit_max_attempts;
+	__u16 sinit_max_init_timeo;
+};
+
+/*
+ * 5.2.2 SCTP Header Information Structure (SCTP_SNDRCV)
+ *
+ *   This cmsghdr structure specifies SCTP options for sendmsg() and
+ *   describes SCTP header information about a received message through
+ *   recvmsg().
+ *
+ *   cmsg_level    cmsg_type      cmsg_data[]
+ *   ------------  ------------   ----------------------
+ *   IPPROTO_SCTP  SCTP_SNDRCV    struct sctp_sndrcvinfo
+ *
+ */
+struct sctp_sndrcvinfo {
+	__u16 sinfo_stream;
+	__u16 sinfo_ssn;
+	__u16 sinfo_flags;
+	__u32 sinfo_ppid;
+	__u32 sinfo_context;
+	__u32 sinfo_timetolive;
+	__u32 sinfo_tsn;
+	__u32 sinfo_cumtsn;
+	sctp_assoc_t sinfo_assoc_id;
+};
+
+/*
+ *  sinfo_flags: 16 bits (unsigned integer)
+ *
+ *   This field may contain any of the following flags and is composed of
+ *   a bitwise OR of these values.
+ */
+
+enum sctp_sinfo_flags {
+	MSG_UNORDERED = 1,  /* Send/receive message unordered. */
+	MSG_ADDR_OVER = 2,  /* Override the primary destination. */
+	MSG_ABORT=4,        /* Send an ABORT message to the peer. */
+	/* MSG_EOF is already defined per socket.h */
+};
+
+
+typedef union {
+	__u8   			raw;
+	struct sctp_initmsg	init;
+	struct sctp_sndrcvinfo	sndrcv;
+} sctp_cmsg_data_t;
+
+/* These are cmsg_types.  */
+typedef enum sctp_cmsg_type {
+	SCTP_INIT,              /* 5.2.1 SCTP Initiation Structure */
+	SCTP_SNDRCV,            /* 5.2.2 SCTP Header Information Structure */
+} sctp_cmsg_t;
+
+
+/*
+ * 5.3.1.1 SCTP_ASSOC_CHANGE
+ *
+ *   Communication notifications inform the ULP that an SCTP association
+ *   has either begun or ended. The identifier for a new association is
+ *   provided by this notificaion. The notification information has the
+ *   following format:
+ *
+ */
+struct sctp_assoc_change {
+	__u16 sac_type;
+	__u16 sac_flags;
+	__u32 sac_length;
+	__u16 sac_state;
+	__u16 sac_error;
+	__u16 sac_outbound_streams;
+	__u16 sac_inbound_streams;
+	sctp_assoc_t sac_assoc_id;
+};
+
+/*
+ *   sac_state: 32 bits (signed integer)
+ *
+ *   This field holds one of a number of values that communicate the
+ *   event that happened to the association.  They include:
+ *
+ *   Note:  The following state names deviate from the API draft as
+ *   the names clash too easily with other kernel symbols.
+ */
+enum sctp_sac_state {
+	SCTP_COMM_UP,
+	SCTP_COMM_LOST,
+	SCTP_RESTART,
+	SCTP_SHUTDOWN_COMP,
+	SCTP_CANT_STR_ASSOC,
+};
+
+/*
+ * 5.3.1.2 SCTP_PEER_ADDR_CHANGE
+ *
+ *   When a destination address on a multi-homed peer encounters a change
+ *   an interface details event is sent.  The information has the
+ *   following structure:
+ */
+struct sctp_paddr_change {
+	__u16 spc_type;
+	__u16 spc_flags;
+	__u32 spc_length;
+	struct sockaddr_storage spc_aaddr;
+	int spc_state;
+	int spc_error;
+	sctp_assoc_t spc_assoc_id;
+};
+
+/*
+ *    spc_state:  32 bits (signed integer)
+ *
+ *   This field holds one of a number of values that communicate the
+ *   event that happened to the address.  They include:
+ */
+enum sctp_spc_state {
+	SCTP_ADDR_AVAILABLE,
+	SCTP_ADDR_UNREACHABLE,
+	SCTP_ADDR_REMOVED,
+	SCTP_ADDR_ADDED,
+	SCTP_ADDR_MADE_PRIM,
+};
+
+
+/*
+ * 5.3.1.3 SCTP_REMOTE_ERROR
+ *
+ *   A remote peer may send an Operational Error message to its peer.
+ *   This message indicates a variety of error conditions on an
+ *   association. The entire error TLV as it appears on the wire is
+ *   included in a SCTP_REMOTE_ERROR event.  Please refer to the SCTP
+ *   specification [SCTP] and any extensions for a list of possible
+ *   error formats. SCTP error TLVs have the format:
+ */
+struct sctp_remote_error {
+	__u16 sre_type;
+	__u16 sre_flags;
+	__u32 sre_length;
+	__u16 sre_error;
+	sctp_assoc_t sre_assoc_id;
+	__u8 sre_data[0];
+};
+
+
+/*
+ * 5.3.1.4 SCTP_SEND_FAILED
+ *
+ *   If SCTP cannot deliver a message it may return the message as a
+ *   notification.
+ */
+struct sctp_send_failed {
+	__u16 ssf_type;
+	__u16 ssf_flags;
+	__u32 ssf_length;
+	__u32 ssf_error;
+	struct sctp_sndrcvinfo ssf_info;
+	sctp_assoc_t ssf_assoc_id;
+	__u8 ssf_data[0];
+};
+
+/*
+ *   ssf_flags: 16 bits (unsigned integer)
+ *
+ *   The flag value will take one of the following values
+ *
+ *   SCTP_DATA_UNSENT  - Indicates that the data was never put on
+ *                       the wire.
+ *
+ *   SCTP_DATA_SENT    - Indicates that the data was put on the wire.
+ *                       Note that this does not necessarily mean that the
+ *                       data was (or was not) successfully delivered.
+ */
+enum sctp_ssf_flags {
+	SCTP_DATA_UNSENT,
+	SCTP_DATA_SENT,
+};
+
+/*
+ * 5.3.1.5 SCTP_SHUTDOWN_EVENT
+ *
+ *   When a peer sends a SHUTDOWN, SCTP delivers this notification to
+ *   inform the application that it should cease sending data.
+ */
+struct sctp_shutdown_event {
+	__u16 sse_type;
+	__u16 sse_flags;
+	__u32 sse_length;
+	sctp_assoc_t sse_assoc_id;
+};
+
+/*
+ * 5.3.1.6 SCTP_ADAPTION_INDICATION
+ *
+ *   When a peer sends a Adaption Layer Indication parameter , SCTP
+ *   delivers this notification to inform the application
+ *   that of the peers requested adaption layer.
+ */
+struct sctp_adaption_event {
+	__u16 sai_type;
+	__u16 sai_flags;
+	__u32 sai_length;
+	__u32 sai_adaption_ind;
+	sctp_assoc_t sai_assoc_id;
+};
+
+/*
+ * 5.3.1.7 SCTP_PARTIAL_DELIVERY_EVENT
+ *
+ *   When a receiver is engaged in a partial delivery of a
+ *   message this notification will be used to indicate
+ *   various events.
+ */
+struct sctp_pdapi_event {
+	__u16 pdapi_type;
+	__u16 pdapi_flags;
+	__u32 pdapi_length;
+	__u32 pdapi_indication;
+	sctp_assoc_t pdapi_assoc_id;
+};
+
+enum { SCTP_PARTIAL_DELIVERY_ABORTED=0, };
+
+/*
+ * Described in Section 7.3
+ *   Ancillary Data and Notification Interest Options
+ */
+struct sctp_event_subscribe {
+	__u8 sctp_data_io_event;
+	__u8 sctp_association_event;
+	__u8 sctp_address_event;
+	__u8 sctp_send_failure_event;
+	__u8 sctp_peer_error_event;
+	__u8 sctp_shutdown_event;
+	__u8 sctp_partial_delivery_event;
+	__u8 sctp_adaption_layer_event;
+};
+
+/*
+ * 5.3.1 SCTP Notification Structure
+ *
+ *   The notification structure is defined as the union of all
+ *   notification types.
+ *
+ */
+union sctp_notification {
+	struct {
+		__u16 sn_type;             /* Notification type. */
+		__u16 sn_flags;
+		__u32 sn_length;
+	} sn_header;
+	struct sctp_assoc_change sn_assoc_change;
+	struct sctp_paddr_change sn_paddr_change;
+	struct sctp_remote_error sn_remote_error;
+	struct sctp_send_failed sn_send_failed;
+	struct sctp_shutdown_event sn_shutdown_event;
+	struct sctp_adaption_event sn_adaption_event;
+	struct sctp_pdapi_event sn_pdapi_event;
+};
+
+/* Section 5.3.1
+ * All standard values for sn_type flags are greater than 2^15.
+ * Values from 2^15 and down are reserved.
+ */
+
+enum sctp_sn_type {
+	SCTP_SN_TYPE_BASE     = (1<<15),
+	SCTP_ASSOC_CHANGE,
+	SCTP_PEER_ADDR_CHANGE,
+	SCTP_SEND_FAILED,
+	SCTP_REMOTE_ERROR,
+	SCTP_SHUTDOWN_EVENT,
+	SCTP_PARTIAL_DELIVERY_EVENT,
+	SCTP_ADAPTION_INDICATION,
+};
+
+/* Notification error codes used to fill up the error fields in some
+ * notifications.
+ * SCTP_PEER_ADDRESS_CHAGE 	: spc_error
+ * SCTP_ASSOC_CHANGE		: sac_error
+ * These names should be potentially included in the draft 04 of the SCTP
+ * sockets API specification.
+ */
+typedef enum sctp_sn_error {
+	SCTP_FAILED_THRESHOLD,
+	SCTP_RECEIVED_SACK,
+	SCTP_HEARTBEAT_SUCCESS,
+	SCTP_RESPONSE_TO_USER_REQ,
+	SCTP_INTERNAL_ERROR,
+	SCTP_SHUTDOWN_GUARD_EXPIRES,
+	SCTP_PEER_FAULTY,
+} sctp_sn_error_t;
+
+/*
+ * 7.1.1 Retransmission Timeout Parameters (SCTP_RTOINFO)
+ *
+ *   The protocol parameters used to initialize and bound retransmission
+ *   timeout (RTO) are tunable.  See [SCTP] for more information on how
+ *   these parameters are used in RTO calculation. 
+ */
+struct sctp_rtoinfo {
+	sctp_assoc_t	srto_assoc_id;
+	__u32		srto_initial;
+	__u32		srto_max;
+	__u32		srto_min;
+};
+
+/*
+ * 7.1.2 Association Parameters (SCTP_ASSOCINFO)
+ *
+ *   This option is used to both examine and set various association and
+ *   endpoint parameters.
+ */
+struct sctp_assocparams {
+	sctp_assoc_t	sasoc_assoc_id;
+	__u16		sasoc_asocmaxrxt;
+	__u16		sasoc_number_peer_destinations;
+	__u32		sasoc_peer_rwnd;
+	__u32		sasoc_local_rwnd;
+	__u32		sasoc_cookie_life;
+};
+
+/*
+ * 7.1.9 Set Peer Primary Address (SCTP_SET_PEER_PRIMARY_ADDR)
+ *
+ *  Requests that the peer mark the enclosed address as the association
+ *  primary. The enclosed address must be one of the association's
+ *  locally bound addresses. The following structure is used to make a
+ *   set primary request:
+ */
+struct sctp_setpeerprim {
+	sctp_assoc_t            sspp_assoc_id;
+	struct sockaddr_storage sspp_addr;
+};
+
+/*
+ * 7.1.10 Set Primary Address (SCTP_PRIMARY_ADDR)
+ *
+ *  Requests that the local SCTP stack use the enclosed peer address as
+ *  the association primary. The enclosed address must be one of the
+ *  association peer's addresses. The following structure is used to
+ *  make a set peer primary request:
+ */
+struct sctp_prim {
+	sctp_assoc_t            ssp_assoc_id;
+	struct sockaddr_storage ssp_addr;
+};
+
+/*
+ * 7.1.11 Set Adaption Layer Indicator (SCTP_ADAPTION_LAYER)
+ *
+ * Requests that the local endpoint set the specified Adaption Layer
+ * Indication parameter for all future INIT and INIT-ACK exchanges.
+ */
+struct sctp_setadaption {
+	__u32	ssb_adaption_ind;
+};
+
+/*
+ * 7.1.13 Peer Address Parameters  (SCTP_PEER_ADDR_PARAMS)
+ *
+ *   Applications can enable or disable heartbeats for any peer address
+ *   of an association, modify an address's heartbeat interval, force a
+ *   heartbeat to be sent immediately, and adjust the address's maximum
+ *   number of retransmissions sent before an address is considered
+ *   unreachable. The following structure is used to access and modify an
+ *   address's parameters:
+ */
+struct sctp_paddrparams {
+	sctp_assoc_t		spp_assoc_id;
+	struct sockaddr_storage	spp_address;
+	__u32			spp_hbinterval;
+	__u16			spp_pathmaxrxt;
+};
+
+/*
+ * 7.2.2 Peer Address Information
+ *
+ *   Applications can retrieve information about a specific peer address
+ *   of an association, including its reachability state, congestion
+ *   window, and retransmission timer values.  This information is
+ *   read-only. The following structure is used to access this
+ *   information:
+ */
+struct sctp_paddrinfo {
+	sctp_assoc_t		spinfo_assoc_id;
+	struct sockaddr_storage	spinfo_address;
+	__s32			spinfo_state;
+	__u32			spinfo_cwnd;
+	__u32			spinfo_srtt;
+	__u32			spinfo_rto;
+	__u32			spinfo_mtu;
+};
+
+/* Peer addresses's state. */
+enum sctp_spinfo_state {
+	SCTP_INACTIVE,
+	SCTP_ACTIVE,
+};
+
+/*
+ * 7.2.1 Association Status (SCTP_STATUS)
+ *
+ *   Applications can retrieve current status information about an
+ *   association, including association state, peer receiver window size,
+ *   number of unacked data chunks, and number of data chunks pending
+ *   receipt.  This information is read-only.  The following structure is
+ *   used to access this information:
+ */
+struct sctp_status {
+	sctp_assoc_t		sstat_assoc_id;
+	__s32			sstat_state;
+	__u32			sstat_rwnd;
+	__u16			sstat_unackdata;
+	__u16			sstat_penddata;
+	__u16			sstat_instrms;
+	__u16			sstat_outstrms;
+	__u32			sstat_fragmentation_point;
+	struct sctp_paddrinfo	sstat_primary;
+};
+
+/*
+ * 8.3, 8.5 get all peer/local addresses in an association.
+ * This parameter struct is used by SCTP_GET_PEER_ADDRS and 
+ * SCTP_GET_LOCAL_ADDRS socket options used internally to implement
+ * sctp_getpaddrs() and sctp_getladdrs() API. 
+ */
+struct sctp_getaddrs {
+	sctp_assoc_t            assoc_id;
+	int			addr_num;
+	struct sockaddr		__user *addrs;
+};
+
+/* These are bit fields for msghdr->msg_flags.  See section 5.1.  */
+/* On user space Linux, these live in <bits/socket.h> as an enum.  */
+enum sctp_msg_flags {
+	MSG_NOTIFICATION = 0x8000,
+#define MSG_NOTIFICATION MSG_NOTIFICATION
+};
+
+/*
+ * 8.1 sctp_bindx()
+ *
+ * The flags parameter is formed from the bitwise OR of zero or more of the
+ * following currently defined flags:
+ */
+#define SCTP_BINDX_ADD_ADDR 0x01
+#define SCTP_BINDX_REM_ADDR 0x02
+
+/* This is the structure that is passed as an argument(optval) to
+ * getsockopt(SCTP_SOCKOPT_PEELOFF).
+ */
+typedef struct {
+	sctp_assoc_t associd;
+	int sd;
+} sctp_peeloff_arg_t;
+
+#endif /* __net_sctp_user_h__ */