Verified Commit 2d6da74b authored by Randell Jesup's avatar Randell Jesup Committed by ma1
Browse files

Bug 2045773: Add usrsctp TSN gap check a=pascalc 

Original Revision: https://phabricator.services.mozilla.com/D309815

Differential Revision: https://phabricator.services.mozilla.com/D311396
parent f8bb7186

netwerk/sctp/src/netinet/sctp_indata.c

+8 −0
Original line number Diff line number Diff line
@@ -320,6 +320,14 @@ sctp_mark_non_revokable(struct sctp_association *asoc, uint32_t tsn) 
		return;

	}

	SCTP_CALC_TSN_TO_GAP(gap, tsn, asoc->mapping_array_base_tsn);

	if (gap >= (uint32_t)(asoc->mapping_array_size << 3)) {

		/*

		 * The TSN falls outside the mapping window, e.g. a control

		 * queued before a large FORWARD-TSN moved the window past it.

		 * It has no bit in either map, so there is nothing to mark.

		 */

		return;

	}

	in_r = SCTP_IS_TSN_PRESENT(asoc->mapping_array, gap);

	in_nr = SCTP_IS_TSN_PRESENT(asoc->nr_mapping_array, gap);

	KASSERT(in_r || in_nr, ("%s: Things are really messed up now", __func__));