system/freebsd-src
system/freebsd-src
1
0
Fork 0
mirror of https://github.com/freebsd/freebsd-src synced 2024-10-16 13:23:36 +00:00
Code Issues Packages Projects Releases Wiki Activity

Fix a off-by-one bug in zeroing out the mapping arrays.

Browse source 
Fix sctp_print_mapping_array().

MFC after: 1 week
This commit is contained in:
Michael Tuexen 2010-04-06 18:57:50 +00:00
parent 6a47fc38e2
commit aed5947cd0
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=206281
2 changed files with 18 additions and 33 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
sys/netinet/sctp_indata.c
View file

@ -2275,8 +2275,7 @@ sctp_slide_mapping_arrays(struct sctp_tcb *stcb)
asoc->cumulative_tsn = asoc->mapping_array_base_tsn + (at - 1);
if (compare_with_wrap(asoc->cumulative_tsn, asoc->highest_tsn_inside_map, MAX_TSN) &&
compare_with_wrap(asoc->cumulative_tsn, asoc->highest_tsn_inside_nr_map, MAX_TSN)
) {
compare_with_wrap(asoc->cumulative_tsn, asoc->highest_tsn_inside_nr_map, MAX_TSN)) {
#ifdef INVARIANTS
panic("huh, cumack 0x%x greater than high-tsn 0x%x in map",
asoc->cumulative_tsn, asoc->highest_tsn_inside_map);
@ -2378,7 +2377,7 @@ sctp_slide_mapping_arrays(struct sctp_tcb *stcb)
asoc->nr_mapping_array[slide_from + ii];
}
for (ii = distance; ii <= asoc->mapping_array_size; ii++) {
for (ii = distance; ii < asoc->mapping_array_size; ii++) {
asoc->mapping_array[ii] = 0;
asoc->nr_mapping_array[ii] = 0;
}

46
sys/netinet/sctputil.c
View file

@ -1187,50 +1187,38 @@ sctp_init_asoc(struct sctp_inpcb *m, struct sctp_tcb *stcb,
void
sctp_print_mapping_array(struct sctp_association *asoc)
{
int i, limit;
unsigned int i, limit;
printf("Mapping size:%d baseTSN:%8.8x cumAck:%8.8x highestTSN:%8.8x\n",
printf("Mapping array size: %d, baseTSN: %8.8x, cumAck: %8.8x, highestTSN: (%8.8x, %8.8x).\n",
asoc->mapping_array_size,
asoc->mapping_array_base_tsn,
asoc->cumulative_tsn,
asoc->highest_tsn_inside_map
);
limit = asoc->mapping_array_size;
for (i = asoc->mapping_array_size; i >= 0; i--) {
if (asoc->mapping_array[i]) {
limit = i;
asoc->highest_tsn_inside_map,
asoc->highest_tsn_inside_nr_map);
for (limit = asoc->mapping_array_size; limit > 1; limit--) {
if (asoc->mapping_array[limit - 1]) {
break;
}
}
if (limit == 0)
limit = 1;
printf("Renegable mapping array (last %d entries are zero):\n", asoc->mapping_array_size - limit);
for (i = 0; i < limit; i++) {
printf("%2.2x ", asoc->mapping_array[i]);
printf("%2.2x%c", asoc->mapping_array[i], ((i + 1) % 16) ? ' ' : '\n');
if (((i + 1) % 16) == 0)
printf("\n");
}
printf("\n");
printf("NR Mapping size:%d baseTSN:%8.8x highestTSN:%8.8x\n",
asoc->mapping_array_size,
asoc->mapping_array_base_tsn,
asoc->highest_tsn_inside_nr_map
);
limit = asoc->mapping_array_size;
for (i = asoc->mapping_array_size; i >= 0; i--) {
if (asoc->nr_mapping_array[i]) {
limit = i;
if (limit % 16)
printf("\n");
for (limit = asoc->mapping_array_size; limit > 1; limit--) {
if (asoc->nr_mapping_array[limit - 1]) {
break;
}
}
if (limit == 0)
limit = 1;
printf("Non renegable mapping array (last %d entries are zero):\n", asoc->mapping_array_size - limit);
for (i = 0; i < limit; i++) {
printf("%2.2x ", asoc->nr_mapping_array[i]);
if (((i + 1) % 16) == 0)
printf("\n");
printf("%2.2x%c", asoc->mapping_array[i], ((i + 1) % 16) ? ' ' : '\n');
}
printf("\n");
if (limit % 16)
printf("\n");
}
int
@ -1240,9 +1228,7 @@ sctp_expand_mapping_array(struct sctp_association *asoc, uint32_t needed)
uint8_t *new_array1, *new_array2;
uint32_t new_size;
new_size = asoc->mapping_array_size + ((needed + 7) / 8 + SCTP_MAPPING_ARRAY_INCR);
SCTP_MALLOC(new_array1, uint8_t *, new_size, SCTP_M_MAP);
SCTP_MALLOC(new_array2, uint8_t *, new_size, SCTP_M_MAP);
if ((new_array1 == NULL) || (new_array2 == NULL)) {