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Fix a bug in the handling of association reset request.

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MFC after: 3 days
This commit is contained in:
Michael Tuexen 2012-05-11 19:15:33 +00:00
parent c5b5675d10
commit ce228dab70
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=235283
1 changed files with 30 additions and 36 deletions
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66
sys/netinet/sctp_input.c
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@ -3773,46 +3773,40 @@ sctp_handle_str_reset_request_tsn(struct sctp_tcb *stcb,
seq = ntohl(req->request_seq);
if (asoc->str_reset_seq_in == seq) {
asoc->last_reset_action[1] = stcb->asoc.last_reset_action[0];
if (!(asoc->local_strreset_support & SCTP_ENABLE_CHANGE_ASSOC_REQ)) {
stcb->asoc.last_reset_action[1] = stcb->asoc.last_reset_action[0];
stcb->asoc.last_reset_action[0] = SCTP_STREAM_RESET_RESULT_PERFORMED;
asoc->last_reset_action[0] = SCTP_STREAM_RESET_RESULT_DENIED;
} else
} else {
fwdtsn.ch.chunk_length = htons(sizeof(struct sctp_forward_tsn_chunk));
fwdtsn.ch.chunk_type = SCTP_FORWARD_CUM_TSN;
fwdtsn.ch.chunk_flags = 0;
fwdtsn.new_cumulative_tsn = htonl(stcb->asoc.highest_tsn_inside_map + 1);
sctp_handle_forward_tsn(stcb, &fwdtsn, &abort_flag, NULL, 0);
if (abort_flag) {
return (1);
fwdtsn.ch.chunk_type = SCTP_FORWARD_CUM_TSN;
fwdtsn.ch.chunk_flags = 0;
fwdtsn.new_cumulative_tsn = htonl(stcb->asoc.highest_tsn_inside_map + 1);
sctp_handle_forward_tsn(stcb, &fwdtsn, &abort_flag, NULL, 0);
if (abort_flag) {
return (1);
}
asoc->highest_tsn_inside_map += SCTP_STREAM_RESET_TSN_DELTA;
if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_MAP_LOGGING_ENABLE) {
sctp_log_map(0, 10, asoc->highest_tsn_inside_map, SCTP_MAP_SLIDE_RESULT);
}
asoc->tsn_last_delivered = asoc->cumulative_tsn = asoc->highest_tsn_inside_map;
asoc->mapping_array_base_tsn = asoc->highest_tsn_inside_map + 1;
memset(asoc->mapping_array, 0, asoc->mapping_array_size);
asoc->highest_tsn_inside_nr_map = asoc->highest_tsn_inside_map;
memset(asoc->nr_mapping_array, 0, asoc->mapping_array_size);
atomic_add_int(&asoc->sending_seq, 1);
/* save off historical data for retrans */
asoc->last_sending_seq[1] = asoc->last_sending_seq[0];
asoc->last_sending_seq[0] = asoc->sending_seq;
asoc->last_base_tsnsent[1] = asoc->last_base_tsnsent[0];
asoc->last_base_tsnsent[0] = asoc->mapping_array_base_tsn;
sctp_reset_out_streams(stcb, 0, (uint16_t *) NULL);
sctp_reset_in_stream(stcb, 0, (uint16_t *) NULL);
asoc->last_reset_action[0] = SCTP_STREAM_RESET_RESULT_PERFORMED;
sctp_notify_stream_reset_tsn(stcb, asoc->sending_seq, (asoc->mapping_array_base_tsn + 1), 0);
}
asoc->highest_tsn_inside_map += SCTP_STREAM_RESET_TSN_DELTA;
if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_MAP_LOGGING_ENABLE) {
sctp_log_map(0, 10, asoc->highest_tsn_inside_map, SCTP_MAP_SLIDE_RESULT);
}
asoc->tsn_last_delivered = asoc->cumulative_tsn = asoc->highest_tsn_inside_map;
asoc->mapping_array_base_tsn = asoc->highest_tsn_inside_map + 1;
memset(asoc->mapping_array, 0, asoc->mapping_array_size);
asoc->highest_tsn_inside_nr_map = asoc->highest_tsn_inside_map;
memset(asoc->nr_mapping_array, 0, asoc->mapping_array_size);
atomic_add_int(&asoc->sending_seq, 1);
/* save off historical data for retrans */
asoc->last_sending_seq[1] = asoc->last_sending_seq[0];
asoc->last_sending_seq[0] = asoc->sending_seq;
asoc->last_base_tsnsent[1] = asoc->last_base_tsnsent[0];
asoc->last_base_tsnsent[0] = asoc->mapping_array_base_tsn;
sctp_add_stream_reset_result_tsn(chk,
ntohl(req->request_seq),
SCTP_STREAM_RESET_RESULT_PERFORMED,
asoc->sending_seq,
asoc->mapping_array_base_tsn);
sctp_reset_out_streams(stcb, 0, (uint16_t *) NULL);
sctp_reset_in_stream(stcb, 0, (uint16_t *) NULL);
asoc->last_reset_action[1] = asoc->last_reset_action[0];
asoc->last_reset_action[0] = SCTP_STREAM_RESET_RESULT_PERFORMED;
sctp_notify_stream_reset_tsn(stcb, asoc->sending_seq, (asoc->mapping_array_base_tsn + 1), 0);
sctp_add_stream_reset_result_tsn(chk, seq, asoc->last_reset_action[0],
asoc->last_sending_seq[0], asoc->last_base_tsnsent[0]);
asoc->str_reset_seq_in++;
} else if (asoc->str_reset_seq_in - 1 == seq) {
sctp_add_stream_reset_result_tsn(chk, seq, asoc->last_reset_action[0],