UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

NetLabel: only deref the CIPSOv4 standard map fields when using standard mapping 

Fix several places in the CIPSO code where it was dereferencing fields which
did not have valid pointers by moving those pointer dereferences into code
blocks where the pointers are valid.

Signed-off-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: James Morris <jmorris@namei.org>
This commit is contained in:
Paul Moore 2006-10-11 19:10:47 -04:00 committed by David S. Miller
parent 1a620698c2
commit 044a68ed8a
1 changed files with 12 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
net/ipv4/cipso_ipv4.c
View File

@ -773,13 +773,15 @@ static int cipso_v4_map_cat_rbm_valid(const struct cipso_v4_doi *doi_def,
{
int cat = -1;
u32 bitmap_len_bits = bitmap_len * 8;
u32 cipso_cat_size = doi_def->map.std->cat.cipso_size;
u32 *cipso_array = doi_def->map.std->cat.cipso;
u32 cipso_cat_size;
u32 *cipso_array;
switch (doi_def->type) {
case CIPSO_V4_MAP_PASS:
return 0;
case CIPSO_V4_MAP_STD:
cipso_cat_size = doi_def->map.std->cat.cipso_size;
cipso_array = doi_def->map.std->cat.cipso;
for (;;) {
cat = cipso_v4_bitmap_walk(bitmap,
bitmap_len_bits,
@ -825,8 +827,8 @@ static int cipso_v4_map_cat_rbm_hton(const struct cipso_v4_doi *doi_def,
u32 net_spot_max = 0;
u32 host_clen_bits = host_cat_len * 8;
u32 net_clen_bits = net_cat_len * 8;
u32 host_cat_size = doi_def->map.std->cat.local_size;
u32 *host_cat_array = doi_def->map.std->cat.local;
u32 host_cat_size;
u32 *host_cat_array;
switch (doi_def->type) {
case CIPSO_V4_MAP_PASS:
@ -838,6 +840,8 @@ static int cipso_v4_map_cat_rbm_hton(const struct cipso_v4_doi *doi_def,
memcpy(net_cat, host_cat, net_spot_max);
return net_spot_max;
case CIPSO_V4_MAP_STD:
host_cat_size = doi_def->map.std->cat.local_size;
host_cat_array = doi_def->map.std->cat.local;
for (;;) {
host_spot = cipso_v4_bitmap_walk(host_cat,
host_clen_bits,
@ -893,8 +897,8 @@ static int cipso_v4_map_cat_rbm_ntoh(const struct cipso_v4_doi *doi_def,
int net_spot = -1;
u32 net_clen_bits = net_cat_len * 8;
u32 host_clen_bits = host_cat_len * 8;
u32 net_cat_size = doi_def->map.std->cat.cipso_size;
u32 *net_cat_array = doi_def->map.std->cat.cipso;
u32 net_cat_size;
u32 *net_cat_array;
switch (doi_def->type) {
case CIPSO_V4_MAP_PASS:
@ -903,6 +907,8 @@ static int cipso_v4_map_cat_rbm_ntoh(const struct cipso_v4_doi *doi_def,
memcpy(host_cat, net_cat, net_cat_len);
return net_cat_len;
case CIPSO_V4_MAP_STD:
net_cat_size = doi_def->map.std->cat.cipso_size;
net_cat_array = doi_def->map.std->cat.cipso;
for (;;) {
net_spot = cipso_v4_bitmap_walk(net_cat,
net_clen_bits,