Squashed 'third_party/rawrtc/usrsctp/' content from commit bd1a92db3
Change-Id: If227cd6edd3243ac26044056b7427ae5bca71ef8
git-subtree-dir: third_party/rawrtc/usrsctp
git-subtree-split: bd1a92db338ba1e57453637959a127032bb566ff
diff --git a/usrsctplib/netinet/sctp_header.h b/usrsctplib/netinet/sctp_header.h
new file mode 100755
index 0000000..1019ee2
--- /dev/null
+++ b/usrsctplib/netinet/sctp_header.h
@@ -0,0 +1,609 @@
+/*-
+ * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
+ * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
+ * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * a) Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * b) Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the distribution.
+ *
+ * c) Neither the name of Cisco Systems, Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef __FreeBSD__
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD: head/sys/netinet/sctp_header.h 309682 2016-12-07 19:30:59Z tuexen $");
+#endif
+
+#ifndef _NETINET_SCTP_HEADER_H_
+#define _NETINET_SCTP_HEADER_H_
+
+#if defined(__Windows__) && !defined(__Userspace_os_Windows)
+#include <packon.h>
+#endif
+#if !defined(__Userspace_os_Windows)
+#include <sys/time.h>
+#endif
+#include <netinet/sctp.h>
+#include <netinet/sctp_constants.h>
+
+#if !defined(__Userspace_os_Windows)
+#define SCTP_PACKED __attribute__((packed))
+#else
+#pragma pack (push, 1)
+#define SCTP_PACKED
+#endif
+
+/*
+ * Parameter structures
+ */
+struct sctp_ipv4addr_param {
+ struct sctp_paramhdr ph;/* type=SCTP_IPV4_PARAM_TYPE, len=8 */
+ uint32_t addr; /* IPV4 address */
+} SCTP_PACKED;
+
+#define SCTP_V6_ADDR_BYTES 16
+
+
+struct sctp_ipv6addr_param {
+ struct sctp_paramhdr ph;/* type=SCTP_IPV6_PARAM_TYPE, len=20 */
+ uint8_t addr[SCTP_V6_ADDR_BYTES]; /* IPV6 address */
+} SCTP_PACKED;
+
+/* Cookie Preservative */
+struct sctp_cookie_perserve_param {
+ struct sctp_paramhdr ph;/* type=SCTP_COOKIE_PRESERVE, len=8 */
+ uint32_t time; /* time in ms to extend cookie */
+} SCTP_PACKED;
+
+#define SCTP_ARRAY_MIN_LEN 1
+/* Host Name Address */
+struct sctp_host_name_param {
+ struct sctp_paramhdr ph;/* type=SCTP_HOSTNAME_ADDRESS */
+ char name[SCTP_ARRAY_MIN_LEN]; /* host name */
+} SCTP_PACKED;
+
+/*
+ * This is the maximum padded size of a s-a-p
+ * so paramheadr + 3 address types (6 bytes) + 2 byte pad = 12
+ */
+#define SCTP_MAX_ADDR_PARAMS_SIZE 12
+/* supported address type */
+struct sctp_supported_addr_param {
+ struct sctp_paramhdr ph;/* type=SCTP_SUPPORTED_ADDRTYPE */
+ uint16_t addr_type[2]; /* array of supported address types */
+} SCTP_PACKED;
+
+/* heartbeat info parameter */
+struct sctp_heartbeat_info_param {
+ struct sctp_paramhdr ph;
+ uint32_t time_value_1;
+ uint32_t time_value_2;
+ uint32_t random_value1;
+ uint32_t random_value2;
+ uint8_t addr_family;
+ uint8_t addr_len;
+ /* make sure that this structure is 4 byte aligned */
+ uint8_t padding[2];
+ char address[SCTP_ADDRMAX];
+} SCTP_PACKED;
+
+
+/* draft-ietf-tsvwg-prsctp */
+/* PR-SCTP supported parameter */
+struct sctp_prsctp_supported_param {
+ struct sctp_paramhdr ph;
+} SCTP_PACKED;
+
+
+/* draft-ietf-tsvwg-addip-sctp */
+struct sctp_asconf_paramhdr { /* an ASCONF "parameter" */
+ struct sctp_paramhdr ph;/* a SCTP parameter header */
+ uint32_t correlation_id;/* correlation id for this param */
+} SCTP_PACKED;
+
+struct sctp_asconf_addr_param { /* an ASCONF address parameter */
+ struct sctp_asconf_paramhdr aph; /* asconf "parameter" */
+ struct sctp_ipv6addr_param addrp; /* max storage size */
+} SCTP_PACKED;
+
+
+struct sctp_asconf_tag_param { /* an ASCONF NAT-Vtag parameter */
+ struct sctp_asconf_paramhdr aph; /* asconf "parameter" */
+ uint32_t local_vtag;
+ uint32_t remote_vtag;
+} SCTP_PACKED;
+
+
+struct sctp_asconf_addrv4_param { /* an ASCONF address (v4) parameter */
+ struct sctp_asconf_paramhdr aph; /* asconf "parameter" */
+ struct sctp_ipv4addr_param addrp; /* max storage size */
+} SCTP_PACKED;
+
+#define SCTP_MAX_SUPPORTED_EXT 256
+
+struct sctp_supported_chunk_types_param {
+ struct sctp_paramhdr ph;/* type = 0x8008 len = x */
+ uint8_t chunk_types[];
+} SCTP_PACKED;
+
+
+/*
+ * Structures for DATA chunks
+ */
+struct sctp_data {
+ uint32_t tsn;
+ uint16_t sid;
+ uint16_t ssn;
+ uint32_t ppid;
+ /* user data follows */
+} SCTP_PACKED;
+
+struct sctp_data_chunk {
+ struct sctp_chunkhdr ch;
+ struct sctp_data dp;
+} SCTP_PACKED;
+
+struct sctp_idata {
+ uint32_t tsn;
+ uint16_t sid;
+ uint16_t reserved; /* Where does the SSN go? */
+ uint32_t mid;
+ union {
+ uint32_t ppid;
+ uint32_t fsn; /* Fragment Sequence Number */
+ } ppid_fsn;
+ /* user data follows */
+} SCTP_PACKED;
+
+struct sctp_idata_chunk {
+ struct sctp_chunkhdr ch;
+ struct sctp_idata dp;
+} SCTP_PACKED;
+
+/*
+ * Structures for the control chunks
+ */
+
+/* Initiate (INIT)/Initiate Ack (INIT ACK) */
+struct sctp_init {
+ uint32_t initiate_tag; /* initiate tag */
+ uint32_t a_rwnd; /* a_rwnd */
+ uint16_t num_outbound_streams; /* OS */
+ uint16_t num_inbound_streams; /* MIS */
+ uint32_t initial_tsn; /* I-TSN */
+ /* optional param's follow */
+} SCTP_PACKED;
+#define SCTP_IDENTIFICATION_SIZE 16
+#define SCTP_ADDRESS_SIZE 4
+#if defined(__Userspace__)
+#define SCTP_RESERVE_SPACE 5
+#else
+#define SCTP_RESERVE_SPACE 6
+#endif
+/* state cookie header */
+struct sctp_state_cookie { /* this is our definition... */
+ uint8_t identification[SCTP_IDENTIFICATION_SIZE];/* id of who we are */
+ struct timeval time_entered; /* the time I built cookie */
+ uint32_t cookie_life; /* life I will award this cookie */
+ uint32_t tie_tag_my_vtag; /* my tag in old association */
+
+ uint32_t tie_tag_peer_vtag; /* peers tag in old association */
+ uint32_t peers_vtag; /* peers tag in INIT (for quick ref) */
+
+ uint32_t my_vtag; /* my tag in INIT-ACK (for quick ref) */
+ uint32_t address[SCTP_ADDRESS_SIZE]; /* 4 ints/128 bits */
+ uint32_t addr_type; /* address type */
+ uint32_t laddress[SCTP_ADDRESS_SIZE]; /* my local from address */
+ uint32_t laddr_type; /* my local from address type */
+ uint32_t scope_id; /* v6 scope id for link-locals */
+
+ uint16_t peerport; /* port address of the peer in the INIT */
+ uint16_t myport; /* my port address used in the INIT */
+ uint8_t ipv4_addr_legal;/* Are V4 addr legal? */
+ uint8_t ipv6_addr_legal;/* Are V6 addr legal? */
+#if defined(__Userspace__)
+ uint8_t conn_addr_legal;
+#endif
+ uint8_t local_scope; /* IPv6 local scope flag */
+ uint8_t site_scope; /* IPv6 site scope flag */
+
+ uint8_t ipv4_scope; /* IPv4 private addr scope */
+ uint8_t loopback_scope; /* loopback scope information */
+ uint8_t reserved[SCTP_RESERVE_SPACE]; /* Align to 64 bits */
+ /*
+ * at the end is tacked on the INIT chunk and the INIT-ACK chunk
+ * (minus the cookie).
+ */
+} SCTP_PACKED;
+
+/* state cookie parameter */
+struct sctp_state_cookie_param {
+ struct sctp_paramhdr ph;
+ struct sctp_state_cookie cookie;
+} SCTP_PACKED;
+
+struct sctp_init_chunk {
+ struct sctp_chunkhdr ch;
+ struct sctp_init init;
+} SCTP_PACKED;
+
+struct sctp_init_msg {
+ struct sctphdr sh;
+ struct sctp_init_chunk msg;
+} SCTP_PACKED;
+
+/* ... used for both INIT and INIT ACK */
+#define sctp_init_ack sctp_init
+#define sctp_init_ack_chunk sctp_init_chunk
+#define sctp_init_ack_msg sctp_init_msg
+
+
+/* Selective Ack (SACK) */
+struct sctp_gap_ack_block {
+ uint16_t start; /* Gap Ack block start */
+ uint16_t end; /* Gap Ack block end */
+} SCTP_PACKED;
+
+struct sctp_sack {
+ uint32_t cum_tsn_ack; /* cumulative TSN Ack */
+ uint32_t a_rwnd; /* updated a_rwnd of sender */
+ uint16_t num_gap_ack_blks; /* number of Gap Ack blocks */
+ uint16_t num_dup_tsns; /* number of duplicate TSNs */
+ /* struct sctp_gap_ack_block's follow */
+ /* uint32_t duplicate_tsn's follow */
+} SCTP_PACKED;
+
+struct sctp_sack_chunk {
+ struct sctp_chunkhdr ch;
+ struct sctp_sack sack;
+} SCTP_PACKED;
+
+struct sctp_nr_sack {
+ uint32_t cum_tsn_ack; /* cumulative TSN Ack */
+ uint32_t a_rwnd; /* updated a_rwnd of sender */
+ uint16_t num_gap_ack_blks; /* number of Gap Ack blocks */
+ uint16_t num_nr_gap_ack_blks; /* number of NR Gap Ack blocks */
+ uint16_t num_dup_tsns; /* number of duplicate TSNs */
+ uint16_t reserved; /* not currently used*/
+ /* struct sctp_gap_ack_block's follow */
+ /* uint32_t duplicate_tsn's follow */
+} SCTP_PACKED;
+
+struct sctp_nr_sack_chunk {
+ struct sctp_chunkhdr ch;
+ struct sctp_nr_sack nr_sack;
+} SCTP_PACKED;
+
+
+/* Heartbeat Request (HEARTBEAT) */
+struct sctp_heartbeat {
+ struct sctp_heartbeat_info_param hb_info;
+} SCTP_PACKED;
+
+struct sctp_heartbeat_chunk {
+ struct sctp_chunkhdr ch;
+ struct sctp_heartbeat heartbeat;
+} SCTP_PACKED;
+
+/* ... used for Heartbeat Ack (HEARTBEAT ACK) */
+#define sctp_heartbeat_ack sctp_heartbeat
+#define sctp_heartbeat_ack_chunk sctp_heartbeat_chunk
+
+
+/* Abort Asssociation (ABORT) */
+struct sctp_abort_chunk {
+ struct sctp_chunkhdr ch;
+ /* optional error cause may follow */
+} SCTP_PACKED;
+
+struct sctp_abort_msg {
+ struct sctphdr sh;
+ struct sctp_abort_chunk msg;
+} SCTP_PACKED;
+
+
+/* Shutdown Association (SHUTDOWN) */
+struct sctp_shutdown_chunk {
+ struct sctp_chunkhdr ch;
+ uint32_t cumulative_tsn_ack;
+} SCTP_PACKED;
+
+
+/* Shutdown Acknowledgment (SHUTDOWN ACK) */
+struct sctp_shutdown_ack_chunk {
+ struct sctp_chunkhdr ch;
+} SCTP_PACKED;
+
+
+/* Operation Error (ERROR) */
+struct sctp_error_chunk {
+ struct sctp_chunkhdr ch;
+ /* optional error causes follow */
+} SCTP_PACKED;
+
+
+/* Cookie Echo (COOKIE ECHO) */
+struct sctp_cookie_echo_chunk {
+ struct sctp_chunkhdr ch;
+ struct sctp_state_cookie cookie;
+} SCTP_PACKED;
+
+/* Cookie Acknowledgment (COOKIE ACK) */
+struct sctp_cookie_ack_chunk {
+ struct sctp_chunkhdr ch;
+} SCTP_PACKED;
+
+/* Explicit Congestion Notification Echo (ECNE) */
+struct old_sctp_ecne_chunk {
+ struct sctp_chunkhdr ch;
+ uint32_t tsn;
+} SCTP_PACKED;
+
+struct sctp_ecne_chunk {
+ struct sctp_chunkhdr ch;
+ uint32_t tsn;
+ uint32_t num_pkts_since_cwr;
+} SCTP_PACKED;
+
+/* Congestion Window Reduced (CWR) */
+struct sctp_cwr_chunk {
+ struct sctp_chunkhdr ch;
+ uint32_t tsn;
+} SCTP_PACKED;
+
+/* Shutdown Complete (SHUTDOWN COMPLETE) */
+struct sctp_shutdown_complete_chunk {
+ struct sctp_chunkhdr ch;
+} SCTP_PACKED;
+
+struct sctp_adaptation_layer_indication {
+ struct sctp_paramhdr ph;
+ uint32_t indication;
+} SCTP_PACKED;
+
+/*
+ * draft-ietf-tsvwg-addip-sctp
+ */
+/* Address/Stream Configuration Change (ASCONF) */
+struct sctp_asconf_chunk {
+ struct sctp_chunkhdr ch;
+ uint32_t serial_number;
+ /* lookup address parameter (mandatory) */
+ /* asconf parameters follow */
+} SCTP_PACKED;
+
+/* Address/Stream Configuration Acknowledge (ASCONF ACK) */
+struct sctp_asconf_ack_chunk {
+ struct sctp_chunkhdr ch;
+ uint32_t serial_number;
+ /* asconf parameters follow */
+} SCTP_PACKED;
+
+/* draft-ietf-tsvwg-prsctp */
+/* Forward Cumulative TSN (FORWARD TSN) */
+struct sctp_forward_tsn_chunk {
+ struct sctp_chunkhdr ch;
+ uint32_t new_cumulative_tsn;
+ /* stream/sequence pairs (sctp_strseq) follow */
+} SCTP_PACKED;
+
+struct sctp_strseq {
+ uint16_t sid;
+ uint16_t ssn;
+} SCTP_PACKED;
+
+struct sctp_strseq_mid {
+ uint16_t sid;
+ uint16_t flags;
+ uint32_t mid;
+};
+
+struct sctp_forward_tsn_msg {
+ struct sctphdr sh;
+ struct sctp_forward_tsn_chunk msg;
+} SCTP_PACKED;
+
+/* should be a multiple of 4 - 1 aka 3/7/11 etc. */
+
+#define SCTP_NUM_DB_TO_VERIFY 31
+
+struct sctp_chunk_desc {
+ uint8_t chunk_type;
+ uint8_t data_bytes[SCTP_NUM_DB_TO_VERIFY];
+ uint32_t tsn_ifany;
+} SCTP_PACKED;
+
+
+struct sctp_pktdrop_chunk {
+ struct sctp_chunkhdr ch;
+ uint32_t bottle_bw;
+ uint32_t current_onq;
+ uint16_t trunc_len;
+ uint16_t reserved;
+ uint8_t data[];
+} SCTP_PACKED;
+
+/**********STREAM RESET STUFF ******************/
+
+struct sctp_stream_reset_request {
+ struct sctp_paramhdr ph;
+ uint32_t request_seq;
+} SCTP_PACKED;
+
+struct sctp_stream_reset_out_request {
+ struct sctp_paramhdr ph;
+ uint32_t request_seq; /* monotonically increasing seq no */
+ uint32_t response_seq; /* if a response, the resp seq no */
+ uint32_t send_reset_at_tsn; /* last TSN I assigned outbound */
+ uint16_t list_of_streams[]; /* if not all list of streams */
+} SCTP_PACKED;
+
+struct sctp_stream_reset_in_request {
+ struct sctp_paramhdr ph;
+ uint32_t request_seq;
+ uint16_t list_of_streams[]; /* if not all list of streams */
+} SCTP_PACKED;
+
+struct sctp_stream_reset_tsn_request {
+ struct sctp_paramhdr ph;
+ uint32_t request_seq;
+} SCTP_PACKED;
+
+struct sctp_stream_reset_response {
+ struct sctp_paramhdr ph;
+ uint32_t response_seq; /* if a response, the resp seq no */
+ uint32_t result;
+} SCTP_PACKED;
+
+struct sctp_stream_reset_response_tsn {
+ struct sctp_paramhdr ph;
+ uint32_t response_seq; /* if a response, the resp seq no */
+ uint32_t result;
+ uint32_t senders_next_tsn;
+ uint32_t receivers_next_tsn;
+} SCTP_PACKED;
+
+struct sctp_stream_reset_add_strm {
+ struct sctp_paramhdr ph;
+ uint32_t request_seq;
+ uint16_t number_of_streams;
+ uint16_t reserved;
+} SCTP_PACKED;
+
+#define SCTP_STREAM_RESET_RESULT_NOTHING_TO_DO 0x00000000 /* XXX: unused */
+#define SCTP_STREAM_RESET_RESULT_PERFORMED 0x00000001
+#define SCTP_STREAM_RESET_RESULT_DENIED 0x00000002
+#define SCTP_STREAM_RESET_RESULT_ERR__WRONG_SSN 0x00000003 /* XXX: unused */
+#define SCTP_STREAM_RESET_RESULT_ERR_IN_PROGRESS 0x00000004
+#define SCTP_STREAM_RESET_RESULT_ERR_BAD_SEQNO 0x00000005
+#define SCTP_STREAM_RESET_RESULT_IN_PROGRESS 0x00000006 /* XXX: unused */
+
+/*
+ * convience structures, note that if you are making a request for specific
+ * streams then the request will need to be an overlay structure.
+ */
+
+struct sctp_stream_reset_tsn_req {
+ struct sctp_chunkhdr ch;
+ struct sctp_stream_reset_tsn_request sr_req;
+} SCTP_PACKED;
+
+struct sctp_stream_reset_resp {
+ struct sctp_chunkhdr ch;
+ struct sctp_stream_reset_response sr_resp;
+} SCTP_PACKED;
+
+/* respone only valid with a TSN request */
+struct sctp_stream_reset_resp_tsn {
+ struct sctp_chunkhdr ch;
+ struct sctp_stream_reset_response_tsn sr_resp;
+} SCTP_PACKED;
+
+/****************************************************/
+
+/*
+ * Authenticated chunks support draft-ietf-tsvwg-sctp-auth
+ */
+
+/* Should we make the max be 32? */
+#define SCTP_RANDOM_MAX_SIZE 256
+struct sctp_auth_random {
+ struct sctp_paramhdr ph;/* type = 0x8002 */
+ uint8_t random_data[];
+} SCTP_PACKED;
+
+struct sctp_auth_chunk_list {
+ struct sctp_paramhdr ph;/* type = 0x8003 */
+ uint8_t chunk_types[];
+} SCTP_PACKED;
+
+struct sctp_auth_hmac_algo {
+ struct sctp_paramhdr ph;/* type = 0x8004 */
+ uint16_t hmac_ids[];
+} SCTP_PACKED;
+
+struct sctp_auth_chunk {
+ struct sctp_chunkhdr ch;
+ uint16_t shared_key_id;
+ uint16_t hmac_id;
+ uint8_t hmac[];
+} SCTP_PACKED;
+
+/*
+ * we pre-reserve enough room for a ECNE or CWR AND a SACK with no missing
+ * pieces. If ENCE is missing we could have a couple of blocks. This way we
+ * optimize so we MOST likely can bundle a SACK/ECN with the smallest size
+ * data chunk I will split into. We could increase throughput slightly by
+ * taking out these two but the 24-sack/8-CWR i.e. 32 bytes I pre-reserve I
+ * feel is worth it for now.
+ */
+#ifndef SCTP_MAX_OVERHEAD
+#ifdef INET6
+#define SCTP_MAX_OVERHEAD (sizeof(struct sctp_data_chunk) + \
+ sizeof(struct sctphdr) + \
+ sizeof(struct sctp_ecne_chunk) + \
+ sizeof(struct sctp_sack_chunk) + \
+ sizeof(struct ip6_hdr))
+
+#define SCTP_MED_OVERHEAD (sizeof(struct sctp_data_chunk) + \
+ sizeof(struct sctphdr) + \
+ sizeof(struct ip6_hdr))
+
+
+#define SCTP_MIN_OVERHEAD (sizeof(struct ip6_hdr) + \
+ sizeof(struct sctphdr))
+
+#else
+#define SCTP_MAX_OVERHEAD (sizeof(struct sctp_data_chunk) + \
+ sizeof(struct sctphdr) + \
+ sizeof(struct sctp_ecne_chunk) + \
+ sizeof(struct sctp_sack_chunk) + \
+ sizeof(struct ip))
+
+#define SCTP_MED_OVERHEAD (sizeof(struct sctp_data_chunk) + \
+ sizeof(struct sctphdr) + \
+ sizeof(struct ip))
+
+
+#define SCTP_MIN_OVERHEAD (sizeof(struct ip) + \
+ sizeof(struct sctphdr))
+
+#endif /* INET6 */
+#endif /* !SCTP_MAX_OVERHEAD */
+
+#define SCTP_MED_V4_OVERHEAD (sizeof(struct sctp_data_chunk) + \
+ sizeof(struct sctphdr) + \
+ sizeof(struct ip))
+
+#define SCTP_MIN_V4_OVERHEAD (sizeof(struct ip) + \
+ sizeof(struct sctphdr))
+
+#if defined(__Windows__)
+#include <packoff.h>
+#endif
+#if defined(__Userspace_os_Windows)
+#pragma pack ()
+#endif
+#undef SCTP_PACKED
+#endif /* !__sctp_header_h__ */