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4038. [bug] Add 'rpz' flag to node and use it to determine whether

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to call dns_rpz_delete.  This should prevent unbalanced
                        add / delete calls. [RT #36888
This commit is contained in:
Mark Andrews
2015-01-20 16:57:42 +11:00
parent f8eb4e5bfd
commit cc0a48a381
4 changed files with 21 additions and 6 deletions
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4
CHANGES
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@@ -1,3 +1,7 @@
4038. [bug] Add 'rpz' flag to node and use it to determine whether
to call dns_rpz_delete. This should prevent unbalanced
add / delete calls. [RT #36888]
4037. [bug] also-notify was ignoring the tsig key when checking
for duplicates resulting in some expected notify
messages not being sent. [RT #38369]

3
lib/dns/include/dns/rbt.h
View File

@@ -126,6 +126,9 @@ struct dns_rbtnode {
unsigned int down_is_relative : 1;
unsigned int data_is_relative : 1;
/* node needs to be cleaned from rpz */
unsigned int rpz : 1;
#ifdef DNS_RBT_USEHASH
unsigned int hashval;
#endif

1
lib/dns/rbt.c
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@@ -2186,6 +2186,7 @@ create_node(isc_mem_t *mctx, dns_name_t *name, dns_rbtnode_t **nodep) {
node->right_is_relative = 0;
node->parent_is_relative = 0;
node->data_is_relative = 0;
node->rpz = 0;
#ifdef DNS_RBT_USEHASH
HASHNEXT(node) = NULL;

19
lib/dns/rbtdb.c
View File

@@ -1834,7 +1834,7 @@ delete_node(dns_rbtdb_t *rbtdb, dns_rbtnode_t *node)
switch (node->nsec) {
case DNS_RBT_NSEC_NORMAL:
if (rbtdb->rpzs != NULL) {
if (rbtdb->rpzs != NULL && node->rpz) {
dns_fixedname_init(&fname);
name = dns_fixedname_name(&fname);
dns_rbt_fullnamefromnode(node, name);
@@ -1873,9 +1873,9 @@ delete_node(dns_rbtdb_t *rbtdb, dns_rbtnode_t *node)
isc_result_totext(result));
}
}
result = dns_rbt_deletenode(rbtdb->tree, node, ISC_FALSE);
if (rbtdb->rpzs != NULL)
if (rbtdb->rpzs != NULL && node->rpz)
dns_rpz_delete(rbtdb->rpzs, rbtdb->rpz_num, name);
result = dns_rbt_deletenode(rbtdb->tree, node, ISC_FALSE);
break;
case DNS_RBT_NSEC_NSEC:
result = dns_rbt_deletenode(rbtdb->nsec, node, ISC_FALSE);
@@ -2901,6 +2901,8 @@ findnodeintree(dns_rbtdb_t *rbtdb, dns_rbt_t *tree, dns_name_t *name,
fname = dns_fixedname_name(&fnamef);
dns_rbt_fullnamefromnode(node, fname);
result = dns_rpz_add(rbtdb->rpzs, rbtdb->rpz_num, fname);
if (result == ISC_R_SUCCESS)
node->rpz = 1;
if (result != ISC_R_SUCCESS && result != ISC_R_EXISTS) {
/*
* It is too late to give up, so merely complain.
@@ -7063,7 +7065,9 @@ loadnode(dns_rbtdb_t *rbtdb, dns_name_t *name, dns_rbtnode_t **nodep,
if (rbtdb->rpzs != NULL && noderesult == ISC_R_SUCCESS) {
noderesult = dns_rpz_add(rbtdb->load_rpzs, rbtdb->rpz_num,
name);
if (noderesult != ISC_R_SUCCESS) {
if (noderesult == ISC_R_SUCCESS) {
node->rpz = 1;
} else {
/*
* Remove the node we just added above.
*/
@@ -7121,6 +7125,11 @@ loadnode(dns_rbtdb_t *rbtdb, dns_name_t *name, dns_rbtnode_t **nodep,
}
if (noderesult == ISC_R_SUCCESS) {
/*
* Clean rpz entries added above.
*/
if (rbtdb->rpzs != NULL && node->rpz)
dns_rpz_delete(rbtdb->load_rpzs, rbtdb->rpz_num, name);
/*
* Remove the node we just added above.
*/
@@ -7135,8 +7144,6 @@ loadnode(dns_rbtdb_t *rbtdb, dns_name_t *name, dns_rbtnode_t **nodep,
"dns_rbt_addnode(NSEC): %s",
isc_result_totext(tmpresult),
isc_result_totext(noderesult));
if (rbtdb->rpzs != NULL && noderesult == ISC_R_SUCCESS)
dns_rpz_delete(rbtdb->load_rpzs, rbtdb->rpz_num, name);
}
/*