#include <sys/cdefs.h>
#include <netinet/sctp_os.h>
#include <sys/proc.h>
#include <netinet/sctp_var.h>
#include <netinet/sctp_sysctl.h>
#include <netinet/sctp_header.h>
#include <netinet/sctp_pcb.h>
#include <netinet/sctputil.h>
#include <netinet/sctp_output.h>
#include <netinet/sctp_uio.h>
#include <netinet/sctp_auth.h>
#include <netinet/sctp_timer.h>
#include <netinet/sctp_asconf.h>
#include <netinet/sctp_indata.h>
#include <netinet/sctp_bsd_addr.h>
#include <netinet/sctp_input.h>
#include <netinet/sctp_crc32.h>
#include <netinet/sctp_lock_bsd.h>

Include dependency graph for sctp_indata.c:

Functions
	__FBSDID ("$FreeBSD$")

static uint32_t	sctp_add_chk_to_control (struct sctp_queued_to_read control, struct sctp_stream_in strm, struct sctp_tcb stcb, struct sctp_association asoc, struct sctp_tmit_chunk *chk, int hold_rlock)

void	sctp_set_rwnd (struct sctp_tcb stcb, struct sctp_association asoc)

uint32_t	sctp_calc_rwnd (struct sctp_tcb stcb, struct sctp_association asoc)

struct sctp_queued_to_read *	sctp_build_readq_entry (struct sctp_tcb stcb, struct sctp_nets net, uint32_t tsn, uint32_t ppid, uint32_t context, uint16_t sid, uint32_t mid, uint8_t flags, struct mbuf *dm)

struct mbuf *	sctp_build_ctl_nchunk (struct sctp_inpcb inp, struct sctp_sndrcvinfo sinfo)

static void	sctp_mark_non_revokable (struct sctp_association *asoc, uint32_t tsn)

static int	sctp_place_control_in_stream (struct sctp_stream_in strm, struct sctp_association asoc, struct sctp_queued_to_read *control)

static void	sctp_abort_in_reasm (struct sctp_tcb stcb, struct sctp_queued_to_read control, struct sctp_tmit_chunk chk, int abort_flag, int opspot)

static void	sctp_clean_up_control (struct sctp_tcb stcb, struct sctp_queued_to_read control)

static void	sctp_queue_data_to_stream (struct sctp_tcb stcb, struct sctp_association asoc, struct sctp_queued_to_read control, int abort_flag, int *need_reasm)

static void	sctp_setup_tail_pointer (struct sctp_queued_to_read *control)

static void	sctp_add_to_tail_pointer (struct sctp_queued_to_read control, struct mbuf m, uint32_t *added)

static void	sctp_build_readq_entry_from_ctl (struct sctp_queued_to_read nc, struct sctp_queued_to_read control)

static void	sctp_reset_a_control (struct sctp_queued_to_read control, struct sctp_inpcb inp, uint32_t tsn)

static int	sctp_handle_old_unordered_data (struct sctp_tcb stcb, struct sctp_association asoc, struct sctp_stream_in strm, struct sctp_queued_to_read control, uint32_t pd_point, int inp_read_lock_held)

static void	sctp_inject_old_unordered_data (struct sctp_tcb stcb, struct sctp_association asoc, struct sctp_queued_to_read control, struct sctp_tmit_chunk chk, int *abort_flag)

static int	sctp_deliver_reasm_check (struct sctp_tcb stcb, struct sctp_association asoc, struct sctp_stream_in *strm, int inp_read_lock_held)

static void	sctp_queue_data_for_reasm (struct sctp_tcb stcb, struct sctp_association asoc, struct sctp_queued_to_read control, struct sctp_tmit_chunk chk, int created_control, int *abort_flag, uint32_t tsn)

static struct sctp_queued_to_read *	sctp_find_reasm_entry (struct sctp_stream_in *strm, uint32_t mid, int ordered, int idata_supported)

static int	sctp_process_a_data_chunk (struct sctp_tcb stcb, struct sctp_association asoc, struct mbuf *m, int offset, int chk_length, struct sctp_nets net, uint32_t high_tsn, int abort_flag, int *break_flag, int last_chunk, uint8_t chk_type)

void	sctp_slide_mapping_arrays (struct sctp_tcb *stcb)

void	sctp_sack_check (struct sctp_tcb *stcb, int was_a_gap)

int	sctp_process_data (struct mbuf *mm, int iphlen, int offset, int length, struct sctp_inpcb inp, struct sctp_tcb stcb, struct sctp_nets net, uint32_t high_tsn)

static int	sctp_process_segment_range (struct sctp_tcb stcb, struct sctp_tmit_chunk p_tp1, uint32_t last_tsn, uint16_t frag_strt, uint16_t frag_end, int nr_sacking, int num_frs, uint32_t biggest_newly_acked_tsn, uint32_t this_sack_lowest_newack, int *rto_ok)

static int	sctp_handle_segments (struct mbuf m, int offset, struct sctp_tcb stcb, struct sctp_association asoc, uint32_t last_tsn, uint32_t biggest_tsn_acked, uint32_t biggest_newly_acked_tsn, uint32_t this_sack_lowest_newack, int num_seg, int num_nr_seg, int rto_ok)

static void	sctp_check_for_revoked (struct sctp_tcb stcb, struct sctp_association asoc, uint32_t cumack, uint32_t biggest_tsn_acked)

static void	sctp_strike_gap_ack_chunks (struct sctp_tcb stcb, struct sctp_association asoc, uint32_t biggest_tsn_acked, uint32_t biggest_tsn_newly_acked, uint32_t this_sack_lowest_newack, int accum_moved)

struct sctp_tmit_chunk *	sctp_try_advance_peer_ack_point (struct sctp_tcb stcb, struct sctp_association asoc)

static int	sctp_fs_audit (struct sctp_association *asoc)

static void	sctp_window_probe_recovery (struct sctp_tcb stcb, struct sctp_association asoc, struct sctp_tmit_chunk *tp1)

void	sctp_express_handle_sack (struct sctp_tcb stcb, uint32_t cumack, uint32_t rwnd, int abort_now, int ecne_seen)

void	sctp_handle_sack (struct mbuf m, int offset_seg, int offset_dup, struct sctp_tcb stcb, uint16_t num_seg, uint16_t num_nr_seg, uint16_t num_dup, int *abort_now, uint8_t flags, uint32_t cum_ack, uint32_t rwnd, int ecne_seen)

void	sctp_update_acked (struct sctp_tcb stcb, struct sctp_shutdown_chunk cp, int *abort_flag)

static void	sctp_kick_prsctp_reorder_queue (struct sctp_tcb stcb, struct sctp_stream_in strmin)

static void	sctp_flush_reassm_for_str_seq (struct sctp_tcb stcb, struct sctp_association asoc, struct sctp_stream_in strm, struct sctp_queued_to_read control, int ordered, uint32_t cumtsn)

void	sctp_handle_forward_tsn (struct sctp_tcb stcb, struct sctp_forward_tsn_chunk fwd, int abort_flag, struct mbuf m, int offset)

Variables
static const int8_t	sctp_map_lookup_tab [256]

Function Documentation

◆ __FBSDID()

__FBSDID ( "$FreeBSD$" )

◆ sctp_abort_in_reasm()

static void sctp_abort_in_reasm	(	struct sctp_tcb *	stcb,
		struct sctp_queued_to_read *	control,
		struct sctp_tmit_chunk *	chk,
		int *	abort_flag,
		int	opspot
	)

static

Definition at line 416 of file sctp_indata.c.

References sctp_tcb::asoc, sctp_tmit_chunk::data, sctp_data_chunkrec::fsn, sctp_queued_to_read::fsn_included, sctp_association::idata_supported, sctp_inpcb::last_abort_code, sctp_data_chunkrec::mid, sctp_tmit_chunk::rec, sctp_abort_an_association(), SCTP_CAUSE_PROTOCOL_VIOLATION, SCTP_DIAG_INFO_LEN, sctp_tcb::sctp_ep, sctp_free_a_chunk, SCTP_FROM_SCTP_INDATA, sctp_generate_cause(), SCTP_LOC_1, sctp_m_freem, SCTP_SNPRINTF, SCTP_SO_NOT_LOCKED, sctp_data_chunkrec::sid, and sctp_data_chunkrec::tsn.

Referenced by sctp_inject_old_unordered_data(), and sctp_queue_data_for_reasm().

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◆ sctp_add_chk_to_control()

uint32_t sctp_add_chk_to_control	(	struct sctp_queued_to_read *	control,
		struct sctp_stream_in *	strm,
		struct sctp_tcb *	stcb,
		struct sctp_association *	asoc,
		struct sctp_tmit_chunk *	chk,
		int	hold_rlock
	)

static

Definition at line 1285 of file sctp_indata.c.

Referenced by sctp_flush_reassm_for_str_seq(), sctp_handle_old_unordered_data(), and sctp_queue_data_for_reasm().

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◆ sctp_add_to_tail_pointer()

static void sctp_add_to_tail_pointer	(	struct sctp_queued_to_read *	control,
		struct mbuf *	m,
		uint32_t *	added
	)

static

Definition at line 675 of file sctp_indata.c.

References sctp_queued_to_read::data, sctp_queued_to_read::length, sctp_queued_to_read::on_read_q, SCTP_BUF_LEN, SCTP_BUF_NEXT, sctp_m_free, sctp_m_freem, sctp_sballoc, sctp_setup_tail_pointer(), sctp_tcb::sctp_socket, sctp_queued_to_read::stcb, and sctp_queued_to_read::tail_mbuf.

Referenced by sctp_add_chk_to_control().

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◆ sctp_build_ctl_nchunk()

struct mbuf * sctp_build_ctl_nchunk	(	struct sctp_inpcb *	inp,
		struct sctp_sndrcvinfo *	sinfo
	)

Definition at line 172 of file sctp_indata.c.

Referenced by sctp_soreceive().

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◆ sctp_build_readq_entry()

struct sctp_queued_to_read * sctp_build_readq_entry	(	struct sctp_tcb *	stcb,
		struct sctp_nets *	net,
		uint32_t	tsn,
		uint32_t	ppid,
		uint32_t	context,
		uint16_t	sid,
		uint32_t	mid,
		uint8_t	flags,
		struct mbuf *	dm
	)

Definition at line 135 of file sctp_indata.c.

Referenced by sctp_notify_adaptation_layer(), sctp_notify_assoc_change(), sctp_notify_authentication(), sctp_notify_partial_delivery_indication(), sctp_notify_peer_addr_change(), sctp_notify_remote_error(), sctp_notify_send_failed(), sctp_notify_send_failed2(), sctp_notify_sender_dry_event(), sctp_notify_shutdown_event(), sctp_notify_stream_reset(), sctp_notify_stream_reset_add(), and sctp_notify_stream_reset_tsn().

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◆ sctp_build_readq_entry_from_ctl()

static void sctp_build_readq_entry_from_ctl	(	struct sctp_queued_to_read *	nc,
		struct sctp_queued_to_read *	control
	)

static

Definition at line 730 of file sctp_indata.c.

Referenced by sctp_handle_old_unordered_data().

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◆ sctp_calc_rwnd()

uint32_t sctp_calc_rwnd	(	struct sctp_tcb *	stcb,
		struct sctp_association *	asoc
	)

Definition at line 79 of file sctp_indata.c.

References sctp_tcb::asoc, sctp_association::cnt_on_all_streams, sctp_association::cnt_on_reasm_queue, sctp_association::my_rwnd_control_len, sctp_association::sb_cc, SCTP_MINIMAL_RWND, SCTP_SB_LIMIT_RCV, sctp_sbspace, sctp_sbspace_sub, sctp_tcb::sctp_socket, sctp_association::size_on_all_streams, and sctp_association::size_on_reasm_queue.

Referenced by sctp_set_rwnd(), and sctp_user_rcvd().

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◆ sctp_check_for_revoked()

static void sctp_check_for_revoked	(	struct sctp_tcb *	stcb,
		struct sctp_association *	asoc,
		uint32_t	cumack,
		uint32_t	biggest_tsn_acked
	)

static

Definition at line 3244 of file sctp_indata.c.

References sctp_tmit_chunk::asoc, sctp_tmit_chunk::book_size, sctp_data_chunkrec::chunk_was_revoked, sctp_nets::cwnd, sctp_tmit_chunk::data, sctp_nets::flight_size, sctp_association::last_acked_seq, sctp_tmit_chunk::rec, SCTP_BASE_SYSCTL, SCTP_DATAGRAM_ACKED, SCTP_DATAGRAM_MARKED, SCTP_DATAGRAM_SENT, SCTP_DATAGRAM_UNSENT, SCTP_FLIGHT_LOG_UP_REVOKE, SCTP_FLIGHT_LOGGING_ENABLE, sctp_flight_size_increase, sctp_log_sack(), SCTP_LOG_TSN_REVOKED, sctp_misc_ints(), SCTP_SACK_LOGGING_ENABLE, sctp_total_flight_increase, SCTP_TSN_GT, sctp_tmit_chunk::sent, sctp_association::sent_queue, sctp_data_chunkrec::tsn, and sctp_tmit_chunk::whoTo.

Referenced by sctp_handle_sack().

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◆ sctp_clean_up_control()

static void sctp_clean_up_control	(	struct sctp_tcb *	stcb,
		struct sctp_queued_to_read *	control
	)

static

Definition at line 452 of file sctp_indata.c.

References sctp_tmit_chunk::data, sctp_queued_to_read::data, sctp_queued_to_read::reasm, sctp_free_a_chunk, sctp_free_a_readq, sctp_free_remote_addr, sctp_m_freem, SCTP_SO_NOT_LOCKED, and sctp_queued_to_read::whoFrom.

Referenced by sctp_queue_data_for_reasm(), and sctp_queue_data_to_stream().

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◆ sctp_deliver_reasm_check()

static int sctp_deliver_reasm_check	(	struct sctp_tcb *	stcb,
		struct sctp_association *	asoc,
		struct sctp_stream_in *	strm,
		int	inp_read_lock_held
	)

static

Definition at line 1051 of file sctp_indata.c.

Referenced by sctp_flush_reassm_for_str_seq(), sctp_kick_prsctp_reorder_queue(), and sctp_process_a_data_chunk().

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◆ sctp_express_handle_sack()

void sctp_express_handle_sack	(	struct sctp_tcb *	stcb,
		uint32_t	cumack,
		uint32_t	rwnd,
		int *	abort_now,
		int	ecne_seen
	)

Definition at line 3924 of file sctp_indata.c.

Referenced by sctp_process_control(), and sctp_update_acked().

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◆ sctp_find_reasm_entry()

static struct sctp_queued_to_read * sctp_find_reasm_entry	(	struct sctp_stream_in *	strm,
		uint32_t	mid,
		int	ordered,
		int	idata_supported
	)

static

Definition at line 1665 of file sctp_indata.c.

References sctp_stream_in::inqueue, sctp_queued_to_read::mid, SCTP_MID_EQ, and sctp_stream_in::uno_inqueue.

Referenced by sctp_process_a_data_chunk().

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◆ sctp_flush_reassm_for_str_seq()

static void sctp_flush_reassm_for_str_seq	(	struct sctp_tcb *	stcb,
		struct sctp_association *	asoc,
		struct sctp_stream_in *	strm,
		struct sctp_queued_to_read *	control,
		int	ordered,
		uint32_t	cumtsn
	)

static

Definition at line 5383 of file sctp_indata.c.

References sctp_tmit_chunk::asoc, sctp_association::cnt_on_all_streams, sctp_association::cnt_on_reasm_queue, sctp_tmit_chunk::data, sctp_queued_to_read::data, sctp_queued_to_read::first_frag_seen, sctp_queued_to_read::fsn_included, sctp_association::idata_supported, sctp_stream_in::inqueue, sctp_queued_to_read::length, sctp_queued_to_read::on_read_q, sctp_queued_to_read::on_strm_q, sctp_data_chunkrec::rcv_flags, sctp_queued_to_read::reasm, sctp_tmit_chunk::rec, sctp_add_chk_to_control(), SCTP_DATA_FIRST_FRAG, sctp_deliver_reasm_check(), sctp_tcb::sctp_ep, sctp_free_a_chunk, sctp_free_a_readq, sctp_free_remote_addr, sctp_m_freem, SCTP_ON_ORDERED, SCTP_ON_UNORDERED, SCTP_READ_LOCK_HELD, sctp_reset_a_control(), SCTP_SO_NOT_LOCKED, SCTP_TSN_GT, sctp_ucount_decr, sctp_tmit_chunk::send_size, sctp_association::size_on_all_streams, sctp_association::size_on_reasm_queue, sctp_data_chunkrec::tsn, sctp_stream_in::uno_inqueue, and sctp_queued_to_read::whoFrom.

Referenced by sctp_handle_forward_tsn().

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◆ sctp_fs_audit()

static int sctp_fs_audit ( struct sctp_association * asoc )

static

Definition at line 3838 of file sctp_indata.c.

References sctp_tmit_chunk::asoc, sctp_tmit_chunk::data, sctp_association::pr_sctp_cnt, sctp_tmit_chunk::rec, SCTP_DATAGRAM_ACKED, SCTP_DATAGRAM_RESEND, SCTP_PRINTF, sctp_tmit_chunk::send_size, sctp_tmit_chunk::sent, sctp_association::sent_queue, sctp_association::sent_queue_cnt, sctp_tmit_chunk::snd_count, sctp_association::total_flight, sctp_association::total_flight_count, and sctp_data_chunkrec::tsn.

Referenced by sctp_express_handle_sack(), and sctp_handle_sack().

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◆ sctp_handle_forward_tsn()

void sctp_handle_forward_tsn	(	struct sctp_tcb *	stcb,
		struct sctp_forward_tsn_chunk *	fwd,
		int *	abort_flag,
		struct mbuf *	m,
		int	offset
	)

Definition at line 5476 of file sctp_indata.c.

Referenced by sctp_handle_str_reset_request_tsn(), sctp_handle_stream_reset_response(), and sctp_process_control().

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◆ sctp_handle_old_unordered_data()

static int sctp_handle_old_unordered_data	(	struct sctp_tcb *	stcb,
		struct sctp_association *	asoc,
		struct sctp_stream_in *	strm,
		struct sctp_queued_to_read *	control,
		uint32_t	pd_point,
		int	inp_read_lock_held
	)

static

Definition at line 768 of file sctp_indata.c.

Referenced by sctp_deliver_reasm_check().

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◆ sctp_handle_sack()

void sctp_handle_sack	(	struct mbuf *	m,
		int	offset_seg,
		int	offset_dup,
		struct sctp_tcb *	stcb,
		uint16_t	num_seg,
		uint16_t	num_nr_seg,
		uint16_t	num_dup,
		int *	abort_now,
		uint8_t	flags,
		uint32_t	cum_ack,
		uint32_t	rwnd,
		int	ecne_seen
	)

Definition at line 4401 of file sctp_indata.c.

Referenced by sctp_process_control().

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◆ sctp_handle_segments()

static int sctp_handle_segments	(	struct mbuf *	m,
		int *	offset,
		struct sctp_tcb *	stcb,
		struct sctp_association *	asoc,
		uint32_t	last_tsn,
		uint32_t *	biggest_tsn_acked,
		uint32_t *	biggest_newly_acked_tsn,
		uint32_t *	this_sack_lowest_newack,
		int	num_seg,
		int	num_nr_seg,
		int *	rto_ok
	)

static

Definition at line 3180 of file sctp_indata.c.

References sctp_tmit_chunk::asoc, sctp_gap_ack_block::end, SCTP_BASE_SYSCTL, SCTP_FR_LOG_BIGGEST_TSNS, SCTP_FR_LOGGING_ENABLE, sctp_log_fr(), sctp_m_getptr(), sctp_process_segment_range(), SCTP_TSN_GT, sctp_association::sent_queue, and sctp_gap_ack_block::start.

Referenced by sctp_handle_sack().

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◆ sctp_inject_old_unordered_data()

static void sctp_inject_old_unordered_data	(	struct sctp_tcb *	stcb,
		struct sctp_association *	asoc,
		struct sctp_queued_to_read *	control,
		struct sctp_tmit_chunk *	chk,
		int *	abort_flag
	)

static

Definition at line 913 of file sctp_indata.c.

Referenced by sctp_queue_data_for_reasm().

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◆ sctp_kick_prsctp_reorder_queue()

static void sctp_kick_prsctp_reorder_queue	(	struct sctp_tcb *	stcb,
		struct sctp_stream_in *	strmin
	)

static

Definition at line 5236 of file sctp_indata.c.

References sctp_tcb::asoc, sctp_association::cnt_on_all_streams, sctp_queued_to_read::first_frag_seen, sctp_association::idata_supported, sctp_stream_in::inqueue, sctp_stream_in::last_mid_delivered, sctp_queued_to_read::length, sctp_queued_to_read::mid, sctp_queued_to_read::on_strm_q, sctp_add_to_readq(), SCTP_DATA_NOT_FRAG, sctp_deliver_reasm_check(), sctp_tcb::sctp_ep, sctp_mark_non_revokable(), SCTP_MID_EQ, SCTP_MID_GE, SCTP_MID_GT, SCTP_ON_ORDERED, SCTP_ON_UNORDERED, SCTP_READ_LOCK_HELD, SCTP_SO_NOT_LOCKED, sctp_tcb::sctp_socket, sctp_ucount_decr, sctp_queued_to_read::sinfo_flags, sctp_queued_to_read::sinfo_tsn, sctp_association::size_on_all_streams, sctp_association::strmin, and sctp_stream_in::uno_inqueue.

Referenced by sctp_handle_forward_tsn().

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◆ sctp_mark_non_revokable()

static void sctp_mark_non_revokable	(	struct sctp_association *	asoc,
		uint32_t	tsn
	)

static

Definition at line 286 of file sctp_indata.c.

References sctp_association::cumulative_tsn, sctp_association::highest_tsn_inside_map, sctp_association::highest_tsn_inside_nr_map, sctp_association::mapping_array, sctp_association::mapping_array_base_tsn, sctp_association::nr_mapping_array, SCTP_BASE_SYSCTL, SCTP_CALC_TSN_TO_GAP, SCTP_IS_TSN_PRESENT, SCTP_SET_TSN_PRESENT, SCTP_TSN_GE, SCTP_TSN_GT, and SCTP_UNSET_TSN_PRESENT.

Referenced by sctp_add_chk_to_control(), sctp_deliver_reasm_check(), sctp_handle_old_unordered_data(), sctp_inject_old_unordered_data(), sctp_kick_prsctp_reorder_queue(), sctp_process_a_data_chunk(), sctp_queue_data_for_reasm(), and sctp_queue_data_to_stream().

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◆ sctp_place_control_in_stream()

static int sctp_place_control_in_stream	(	struct sctp_stream_in *	strm,
		struct sctp_association *	asoc,
		struct sctp_queued_to_read *	control
	)

static

Definition at line 330 of file sctp_indata.c.

References sctp_queued_to_read::end_added, sctp_queued_to_read::first_frag_seen, sctp_association::idata_supported, sctp_stream_in::inqueue, sctp_queued_to_read::last_frag_seen, sctp_queued_to_read::mid, sctp_queued_to_read::on_strm_q, SCTP_BASE_SYSCTL, SCTP_DATA_NOT_FRAG, SCTP_DATA_UNORDERED, sctp_log_strm_del(), SCTP_MID_EQ, SCTP_MID_GT, SCTP_ON_ORDERED, SCTP_ON_UNORDERED, SCTP_STR_LOG_FROM_INSERT_TL, SCTP_STR_LOGGING_ENABLE, sctp_queued_to_read::sinfo_flags, and sctp_stream_in::uno_inqueue.

Referenced by sctp_queue_data_for_reasm(), and sctp_queue_data_to_stream().

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◆ sctp_process_a_data_chunk()

static int sctp_process_a_data_chunk	(	struct sctp_tcb *	stcb,
		struct sctp_association *	asoc,
		struct mbuf **	m,
		int	offset,
		int	chk_length,
		struct sctp_nets *	net,
		uint32_t *	high_tsn,
		int *	abort_flag,
		int *	break_flag,
		int	last_chunk,
		uint8_t	chk_type
	)

static

Definition at line 1690 of file sctp_indata.c.

Referenced by sctp_process_data().

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◆ sctp_process_data()

int sctp_process_data	(	struct mbuf **	mm,
		int	iphlen,
		int *	offset,
		int	length,
		struct sctp_inpcb *	inp,
		struct sctp_tcb *	stcb,
		struct sctp_nets *	net,
		uint32_t *	high_tsn
	)

Definition at line 2649 of file sctp_indata.c.

References sctp_tcb::asoc, sctp_chunkhdr::chunk_length, sctp_chunkhdr::chunk_type, sctp_gen_error_cause::code, sctp_association::cumulative_tsn, sctp_association::data_pkts_seen, sctp_association::highest_tsn_inside_map, sctp_association::highest_tsn_inside_nr_map, sctp_association::idata_supported, sctp_inpcb::last_abort_code, sctp_association::last_data_chunk_from, sctp_gen_error_cause::length, sctp_association::overall_error_count, sctp_abort_an_association(), SCTP_ABORT_ASSOCIATION, SCTP_ASCONF, SCTP_ASCONF_ACK, SCTP_AUTHENTICATION, SCTP_BASE_SYSCTL, SCTP_BUF_LEN, SCTP_BUF_NEXT, SCTP_CAUSE_PROTOCOL_VIOLATION, SCTP_CAUSE_UNRECOG_CHUNK, SCTP_COOKIE_ACK, SCTP_COOKIE_ECHO, SCTP_DATA, SCTP_DIAG_INFO_LEN, SCTP_ECN_CWR, SCTP_ECN_ECHO, sctp_tcb::sctp_ep, SCTP_FORWARD_CUM_TSN, SCTP_FROM_SCTP_INDATA, sctp_generate_cause(), sctp_get_mbuf_for_msg(), SCTP_GET_STATE, SCTP_GETTIME_TIMEVAL, SCTP_HEARTBEAT_ACK, SCTP_HEARTBEAT_REQUEST, SCTP_IDATA, SCTP_INITIATION, SCTP_INITIATION_ACK, SCTP_LOC_21, SCTP_LOC_22, SCTP_LOC_23, SCTP_LOC_24, SCTP_M_COPYM, sctp_m_freem, sctp_m_getptr(), sctp_misc_ints(), SCTP_NR_SELECTIVE_ACK, SCTP_OPERATION_ERROR, SCTP_PACKET_DROPPED, sctp_process_a_data_chunk(), sctp_queue_op_err(), sctp_sack_check(), SCTP_SELECTIVE_ACK, sctp_send_packet_dropped(), sctp_set_rwnd(), SCTP_SHUTDOWN, SCTP_SHUTDOWN_ACK, SCTP_SHUTDOWN_COMPLETE, SCTP_SIZE32, SCTP_SNPRINTF, SCTP_SO_NOT_LOCKED, SCTP_STAT_INCR, SCTP_STATE_SHUTDOWN_SENT, SCTP_STREAM_RESET, SCTP_TCB_LOCK_ASSERT, SCTP_THRESHOLD_CLEAR, SCTP_THRESHOLD_LOGGING, SCTP_TSN_GT, sctp_association::send_sack, and sctp_association::time_last_rcvd.

Referenced by sctp_common_input_processing().

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◆ sctp_process_segment_range()

static int sctp_process_segment_range	(	struct sctp_tcb *	stcb,
		struct sctp_tmit_chunk **	p_tp1,
		uint32_t	last_tsn,
		uint16_t	frag_strt,
		uint16_t	frag_end,
		int	nr_sacking,
		int *	num_frs,
		uint32_t *	biggest_newly_acked_tsn,
		uint32_t *	this_sack_lowest_newack,
		int *	rto_ok
	)

static

Definition at line 2942 of file sctp_indata.c.

References sctp_tcb::asoc, sctp_tmit_chunk::book_size, sctp_association::cc_functions, sctp_data_chunkrec::chunk_was_revoked, sctp_stream_out::chunks_on_queues, sctp_nets::cwnd, sctp_tmit_chunk::data, sctp_tmit_chunk::do_rtt, sctp_data_chunkrec::doing_fast_retransmit, sctp_nets::find_pseudo_cumack, sctp_nets::find_rtx_pseudo_cumack, sctp_nets::flight_size, sctp_nets::net_ack, sctp_nets::net_ack2, sctp_nets::new_pseudo_cumack, sctp_stream_out::outqueue, sctp_nets::pseudo_cumack, sctp_tmit_chunk::rec, sctp_nets::rto_needed, sctp_nets::rtx_pseudo_cumack, sctp_nets::saw_newack, SCTP_BASE_SYSCTL, sctp_calculate_rto(), SCTP_CWND_LOG_FROM_SACK, SCTP_CWND_LOGGING_ENABLE, sctp_cc_functions::sctp_cwnd_update_tsn_acknowledged, SCTP_DATAGRAM_MARKED, SCTP_DATAGRAM_NR_ACKED, SCTP_DATAGRAM_RESEND, SCTP_DATAGRAM_UNSENT, SCTP_FLIGHT_LOG_DOWN_GAP, SCTP_FLIGHT_LOGGING_ENABLE, sctp_flight_size_decrease, SCTP_FORWARD_TSN_SKIP, sctp_free_bufspace, sctp_log_cwnd(), sctp_log_sack(), SCTP_LOG_TSN_ACKED, sctp_m_freem, sctp_misc_ints(), SCTP_RTT_FROM_DATA, SCTP_SACK_LOGGING_ENABLE, SCTP_STREAM_RESET_PENDING, sctp_total_flight_decrease, SCTP_TSN_GT, sctp_ucount_decr, sctp_tmit_chunk::send_size, sctp_tmit_chunk::sent, sctp_association::sent_queue, sctp_association::sent_queue_retran_cnt, sctp_tmit_chunk::sent_rcv_time, sctp_data_chunkrec::sid, sctp_tmit_chunk::snd_count, sctp_stream_out::state, sctp_association::strmout, sctp_association::this_sack_highest_gap, sctp_nets::this_sack_highest_newack, sctp_association::trigger_reset, sctp_data_chunkrec::tsn, and sctp_tmit_chunk::whoTo.

Referenced by sctp_handle_segments().

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◆ sctp_queue_data_for_reasm()

static void sctp_queue_data_for_reasm	(	struct sctp_tcb *	stcb,
		struct sctp_association *	asoc,
		struct sctp_queued_to_read *	control,
		struct sctp_tmit_chunk *	chk,
		int	created_control,
		int *	abort_flag,
		uint32_t	tsn
	)

static

Definition at line 1365 of file sctp_indata.c.

Referenced by sctp_process_a_data_chunk().

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◆ sctp_queue_data_to_stream()

static void sctp_queue_data_to_stream	(	struct sctp_tcb *	stcb,
		struct sctp_association *	asoc,
		struct sctp_queued_to_read *	control,
		int *	abort_flag,
		int *	need_reasm
	)

static

Definition at line 481 of file sctp_indata.c.

References sctp_association::cnt_on_all_streams, sctp_association::idata_supported, sctp_stream_in::inqueue, sctp_inpcb::last_abort_code, sctp_stream_in::last_mid_delivered, sctp_queued_to_read::length, sctp_queued_to_read::mid, sctp_queued_to_read::on_strm_q, sctp_abort_an_association(), sctp_add_to_readq(), SCTP_BASE_SYSCTL, SCTP_CAUSE_PROTOCOL_VIOLATION, sctp_clean_up_control(), SCTP_DATA_NOT_FRAG, SCTP_DEBUG_INDATA1, SCTP_DIAG_INFO_LEN, sctp_tcb::sctp_ep, SCTP_FROM_SCTP_INDATA, sctp_generate_cause(), SCTP_LOC_2, SCTP_LOC_3, sctp_log_strm_del(), sctp_mark_non_revokable(), SCTP_MID_EQ, SCTP_MID_GT, SCTP_ON_ORDERED, sctp_place_control_in_stream(), SCTP_READ_LOCK_NOT_HELD, SCTP_SNPRINTF, SCTP_SO_LOCKED, SCTP_SO_NOT_LOCKED, sctp_tcb::sctp_socket, SCTP_STR_LOG_FROM_IMMED_DEL, SCTP_STR_LOG_FROM_INTO_STRD, SCTP_STR_LOGGING_ENABLE, sctp_ucount_decr, sctp_ucount_incr, SCTPDBG, sctp_queued_to_read::sinfo_flags, sctp_queued_to_read::sinfo_stream, sctp_queued_to_read::sinfo_tsn, sctp_association::size_on_all_streams, and sctp_association::strmin.

Referenced by sctp_process_a_data_chunk().

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◆ sctp_reset_a_control()

static void sctp_reset_a_control	(	struct sctp_queued_to_read *	control,
		struct sctp_inpcb *	inp,
		uint32_t	tsn
	)

static

Definition at line 753 of file sctp_indata.c.

References sctp_queued_to_read::fsn_included, next, sctp_queued_to_read::on_read_q, and sctp_inpcb::read_queue.

Referenced by sctp_flush_reassm_for_str_seq().

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◆ sctp_sack_check()

void sctp_sack_check	(	struct sctp_tcb *	stcb,
		int	was_a_gap
	)

Definition at line 2560 of file sctp_indata.c.

Referenced by sctp_common_input_processing(), and sctp_process_data().

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◆ sctp_set_rwnd()

void sctp_set_rwnd	(	struct sctp_tcb *	stcb,
		struct sctp_association *	asoc
	)

Definition at line 72 of file sctp_indata.c.

References sctp_association::my_rwnd, and sctp_calc_rwnd().

Referenced by sctp_process_a_data_chunk(), sctp_process_data(), and sctp_send_sack().

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◆ sctp_setup_tail_pointer()

static void sctp_setup_tail_pointer ( struct sctp_queued_to_read * control )

static

Definition at line 633 of file sctp_indata.c.

References sctp_queued_to_read::data, sctp_queued_to_read::held_length, sctp_queued_to_read::length, sctp_queued_to_read::on_read_q, SCTP_BUF_LEN, SCTP_BUF_NEXT, sctp_m_free, sctp_sballoc, sctp_tcb::sctp_socket, sctp_queued_to_read::stcb, and sctp_queued_to_read::tail_mbuf.

Referenced by sctp_add_chk_to_control(), sctp_add_to_tail_pointer(), sctp_handle_old_unordered_data(), sctp_inject_old_unordered_data(), and sctp_queue_data_for_reasm().

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◆ sctp_slide_mapping_arrays()

void sctp_slide_mapping_arrays ( struct sctp_tcb * stcb )

Definition at line 2395 of file sctp_indata.c.

References sctp_tcb::asoc, sctp_association::cumulative_tsn, sctp_association::highest_tsn_inside_map, sctp_association::highest_tsn_inside_nr_map, sctp_association::mapping_array, sctp_association::mapping_array_base_tsn, sctp_association::mapping_array_size, sctp_association::nr_mapping_array, SCTP_BASE_SYSCTL, SCTP_CALC_TSN_TO_GAP, sctp_log_map(), SCTP_MAP_LOGGING_ENABLE, sctp_map_lookup_tab, SCTP_MAP_PREPARE_SLIDE, SCTP_MAP_SLIDE_FROM, SCTP_MAP_SLIDE_NONE, SCTP_MAP_SLIDE_RESULT, sctp_print_mapping_array(), SCTP_PRINTF, and SCTP_TSN_GT.

Referenced by sctp_handle_forward_tsn(), sctp_sack_check(), and sctp_send_sack().

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◆ sctp_strike_gap_ack_chunks()

static void sctp_strike_gap_ack_chunks	(	struct sctp_tcb *	stcb,
		struct sctp_association *	asoc,
		uint32_t	biggest_tsn_acked,
		uint32_t	biggest_tsn_newly_acked,
		uint32_t	this_sack_lowest_newack,
		int	accum_moved
	)