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-rw-r--r--source4/lib/ldb/common/ldb_match.c304
1 files changed, 212 insertions, 92 deletions
diff --git a/source4/lib/ldb/common/ldb_match.c b/source4/lib/ldb/common/ldb_match.c
index 869b3bd1c8..bf4c786932 100644
--- a/source4/lib/ldb/common/ldb_match.c
+++ b/source4/lib/ldb/common/ldb_match.c
@@ -81,55 +81,94 @@ static int ldb_match_scope(struct ldb_context *ldb,
static int ldb_match_present(struct ldb_context *ldb,
const struct ldb_message *msg,
const struct ldb_parse_tree *tree,
- enum ldb_scope scope)
+ enum ldb_scope scope, bool *matched)
{
+ const struct ldb_schema_attribute *a;
+ struct ldb_message_element *el;
+
if (ldb_attr_dn(tree->u.present.attr) == 0) {
- return 1;
+ *matched = true;
+ return LDB_SUCCESS;
}
- if (ldb_msg_find_element(msg, tree->u.present.attr)) {
- return 1;
+ el = ldb_msg_find_element(msg, tree->u.present.attr);
+ if (el == NULL) {
+ *matched = false;
+ return LDB_SUCCESS;
}
- return 0;
+ a = ldb_schema_attribute_by_name(ldb, el->name);
+ if (!a) {
+ return LDB_ERR_INVALID_ATTRIBUTE_SYNTAX;
+ }
+
+ if (a->syntax->operator_fn) {
+ int i;
+ for (i = 0; i < el->num_values; i++) {
+ int ret = a->syntax->operator_fn(ldb, LDB_OP_PRESENT, a, &el->values[i], NULL, matched);
+ if (ret != LDB_SUCCESS) return ret;
+ if (*matched) return LDB_SUCCESS;
+ }
+ *matched = false;
+ return LDB_SUCCESS;
+ }
+
+ *matched = true;
+ return LDB_SUCCESS;
}
static int ldb_match_comparison(struct ldb_context *ldb,
const struct ldb_message *msg,
const struct ldb_parse_tree *tree,
enum ldb_scope scope,
- enum ldb_parse_op comp_op)
+ enum ldb_parse_op comp_op, bool *matched)
{
unsigned int i;
struct ldb_message_element *el;
const struct ldb_schema_attribute *a;
- int ret;
/* FIXME: APPROX comparison not handled yet */
- if (comp_op == LDB_OP_APPROX) return 0;
+ if (comp_op == LDB_OP_APPROX) {
+ return LDB_ERR_INAPPROPRIATE_MATCHING;
+ }
el = ldb_msg_find_element(msg, tree->u.comparison.attr);
if (el == NULL) {
- return 0;
+ *matched = false;
+ return LDB_SUCCESS;
}
a = ldb_schema_attribute_by_name(ldb, el->name);
+ if (!a) {
+ return LDB_ERR_INVALID_ATTRIBUTE_SYNTAX;
+ }
for (i = 0; i < el->num_values; i++) {
- ret = a->syntax->comparison_fn(ldb, ldb, &el->values[i], &tree->u.comparison.value);
-
- if (ret == 0) {
- return 1;
- }
- if (ret > 0 && comp_op == LDB_OP_GREATER) {
- return 1;
- }
- if (ret < 0 && comp_op == LDB_OP_LESS) {
- return 1;
+ if (a->syntax->operator_fn) {
+ int ret;
+ ret = a->syntax->operator_fn(ldb, comp_op, a, &el->values[i], &tree->u.comparison.value, matched);
+ if (ret != LDB_SUCCESS) return ret;
+ if (*matched) return LDB_SUCCESS;
+ } else {
+ int ret = a->syntax->comparison_fn(ldb, ldb, &el->values[i], &tree->u.comparison.value);
+
+ if (ret == 0) {
+ *matched = true;
+ return LDB_SUCCESS;
+ }
+ if (ret > 0 && comp_op == LDB_OP_GREATER) {
+ *matched = true;
+ return LDB_SUCCESS;
+ }
+ if (ret < 0 && comp_op == LDB_OP_LESS) {
+ *matched = true;
+ return LDB_SUCCESS;
+ }
}
}
- return 0;
+ *matched = false;
+ return LDB_SUCCESS;
}
/*
@@ -138,7 +177,8 @@ static int ldb_match_comparison(struct ldb_context *ldb,
static int ldb_match_equality(struct ldb_context *ldb,
const struct ldb_message *msg,
const struct ldb_parse_tree *tree,
- enum ldb_scope scope)
+ enum ldb_scope scope,
+ bool *matched)
{
unsigned int i;
struct ldb_message_element *el;
@@ -149,39 +189,52 @@ static int ldb_match_equality(struct ldb_context *ldb,
if (ldb_attr_dn(tree->u.equality.attr) == 0) {
valuedn = ldb_dn_from_ldb_val(ldb, ldb, &tree->u.equality.value);
if (valuedn == NULL) {
- return 0;
+ return LDB_ERR_INVALID_DN_SYNTAX;
}
ret = ldb_dn_compare(msg->dn, valuedn);
talloc_free(valuedn);
- if (ret == 0) return 1;
- return 0;
+ *matched = (ret == 0);
+ return LDB_SUCCESS;
}
/* TODO: handle the "*" case derived from an extended search
operation without the attibute type defined */
el = ldb_msg_find_element(msg, tree->u.equality.attr);
if (el == NULL) {
- return 0;
+ *matched = false;
+ return LDB_SUCCESS;
}
a = ldb_schema_attribute_by_name(ldb, el->name);
+ if (a == NULL) {
+ return LDB_ERR_INVALID_ATTRIBUTE_SYNTAX;
+ }
for (i=0;i<el->num_values;i++) {
- if (a->syntax->comparison_fn(ldb, ldb, &tree->u.equality.value,
- &el->values[i]) == 0) {
- return 1;
+ if (a->syntax->operator_fn) {
+ ret = a->syntax->operator_fn(ldb, LDB_OP_EQUALITY, a,
+ &tree->u.equality.value, &el->values[i], matched);
+ if (ret != LDB_SUCCESS) return ret;
+ if (*matched) return LDB_SUCCESS;
+ } else {
+ if (a->syntax->comparison_fn(ldb, ldb, &tree->u.equality.value,
+ &el->values[i]) == 0) {
+ *matched = true;
+ return LDB_SUCCESS;
+ }
}
}
- return 0;
+ *matched = false;
+ return LDB_SUCCESS;
}
static int ldb_wildcard_compare(struct ldb_context *ldb,
const struct ldb_parse_tree *tree,
- const struct ldb_val value)
+ const struct ldb_val value, bool *matched)
{
const struct ldb_schema_attribute *a;
struct ldb_val val;
@@ -192,9 +245,13 @@ static int ldb_wildcard_compare(struct ldb_context *ldb,
unsigned int c = 0;
a = ldb_schema_attribute_by_name(ldb, tree->u.substring.attr);
+ if (!a) {
+ return LDB_ERR_INVALID_ATTRIBUTE_SYNTAX;
+ }
- if(a->syntax->canonicalise_fn(ldb, ldb, &value, &val) != 0)
- return -1;
+ if (a->syntax->canonicalise_fn(ldb, ldb, &value, &val) != 0) {
+ return LDB_ERR_INVALID_ATTRIBUTE_SYNTAX;
+ }
save_p = val.data;
cnk.data = NULL;
@@ -202,13 +259,13 @@ static int ldb_wildcard_compare(struct ldb_context *ldb,
if ( ! tree->u.substring.start_with_wildcard ) {
chunk = tree->u.substring.chunks[c];
- if(a->syntax->canonicalise_fn(ldb, ldb, chunk, &cnk) != 0) goto failed;
+ if (a->syntax->canonicalise_fn(ldb, ldb, chunk, &cnk) != 0) goto mismatch;
/* This deals with wildcard prefix searches on binary attributes (eg objectGUID) */
if (cnk.length > val.length) {
- goto failed;
+ goto mismatch;
}
- if (memcmp((char *)val.data, (char *)cnk.data, cnk.length) != 0) goto failed;
+ if (memcmp((char *)val.data, (char *)cnk.data, cnk.length) != 0) goto mismatch;
val.length -= cnk.length;
val.data += cnk.length;
c++;
@@ -219,11 +276,11 @@ static int ldb_wildcard_compare(struct ldb_context *ldb,
while (tree->u.substring.chunks[c]) {
chunk = tree->u.substring.chunks[c];
- if(a->syntax->canonicalise_fn(ldb, ldb, chunk, &cnk) != 0) goto failed;
+ if(a->syntax->canonicalise_fn(ldb, ldb, chunk, &cnk) != 0) goto mismatch;
/* FIXME: case of embedded nulls */
p = strstr((char *)val.data, (char *)cnk.data);
- if (p == NULL) goto failed;
+ if (p == NULL) goto mismatch;
if ( (! tree->u.substring.chunks[c + 1]) && (! tree->u.substring.end_with_wildcard) ) {
do { /* greedy */
g = strstr((char *)p + cnk.length, (char *)cnk.data);
@@ -237,14 +294,17 @@ static int ldb_wildcard_compare(struct ldb_context *ldb,
cnk.data = NULL;
}
- if ( (! tree->u.substring.end_with_wildcard) && (*(val.data) != 0) ) goto failed; /* last chunk have not reached end of string */
+ /* last chunk may not have reached end of string */
+ if ( (! tree->u.substring.end_with_wildcard) && (*(val.data) != 0) ) goto mismatch;
talloc_free(save_p);
- return 1;
+ *matched = true;
+ return LDB_SUCCESS;
-failed:
+mismatch:
+ *matched = false;
talloc_free(save_p);
talloc_free(cnk.data);
- return 0;
+ return LDB_SUCCESS;
}
/*
@@ -253,46 +313,71 @@ failed:
static int ldb_match_substring(struct ldb_context *ldb,
const struct ldb_message *msg,
const struct ldb_parse_tree *tree,
- enum ldb_scope scope)
+ enum ldb_scope scope, bool *matched)
{
unsigned int i;
struct ldb_message_element *el;
el = ldb_msg_find_element(msg, tree->u.substring.attr);
if (el == NULL) {
- return 0;
+ *matched = false;
+ return LDB_SUCCESS;
}
for (i = 0; i < el->num_values; i++) {
- if (ldb_wildcard_compare(ldb, tree, el->values[i]) == 1) {
- return 1;
- }
+ int ret;
+ ret = ldb_wildcard_compare(ldb, tree, el->values[i], matched);
+ if (ret != LDB_SUCCESS) return ret;
+ if (*matched) return LDB_SUCCESS;
}
- return 0;
+ *matched = false;
+ return LDB_SUCCESS;
}
/*
bitwise-and comparator
*/
-static int ldb_comparator_and(const struct ldb_val *v1, const struct ldb_val *v2)
+static int ldb_comparator_bitmask(const char *oid, const struct ldb_val *v1, const struct ldb_val *v2,
+ bool *matched)
{
uint64_t i1, i2;
- i1 = strtoull((char *)v1->data, NULL, 0);
- i2 = strtoull((char *)v2->data, NULL, 0);
- return ((i1 & i2) == i2);
-}
+ char ibuf[100];
+ char *endptr = NULL;
-/*
- bitwise-or comparator
-*/
-static int ldb_comparator_or(const struct ldb_val *v1, const struct ldb_val *v2)
-{
- uint64_t i1, i2;
- i1 = strtoull((char *)v1->data, NULL, 0);
- i2 = strtoull((char *)v2->data, NULL, 0);
- return ((i1 & i2) != 0);
+ if (v1->length >= sizeof(ibuf)-1) {
+ return LDB_ERR_INVALID_ATTRIBUTE_SYNTAX;
+ }
+ memcpy(ibuf, (char *)v1->data, v1->length);
+ ibuf[v1->length] = 0;
+ i1 = strtoull(ibuf, &endptr, 0);
+ if (endptr != NULL) {
+ if (endptr == ibuf || *endptr != 0) {
+ return LDB_ERR_INVALID_ATTRIBUTE_SYNTAX;
+ }
+ }
+
+ if (v2->length >= sizeof(ibuf)-1) {
+ return LDB_ERR_INVALID_ATTRIBUTE_SYNTAX;
+ }
+ endptr = NULL;
+ memcpy(ibuf, (char *)v2->data, v2->length);
+ ibuf[v2->length] = 0;
+ i2 = strtoull(ibuf, &endptr, 0);
+ if (endptr != NULL) {
+ if (endptr == ibuf || *endptr != 0) {
+ return LDB_ERR_INVALID_ATTRIBUTE_SYNTAX;
+ }
+ }
+ if (strcmp(LDB_OID_COMPARATOR_AND, oid) == 0) {
+ *matched = ((i1 & i2) == i2);
+ } else if (strcmp(LDB_OID_COMPARATOR_OR, oid) == 0) {
+ *matched = ((i1 & i2) != 0);
+ } else {
+ return LDB_ERR_INAPPROPRIATE_MATCHING;
+ }
+ return LDB_SUCCESS;
}
@@ -302,17 +387,17 @@ static int ldb_comparator_or(const struct ldb_val *v1, const struct ldb_val *v2)
static int ldb_match_extended(struct ldb_context *ldb,
const struct ldb_message *msg,
const struct ldb_parse_tree *tree,
- enum ldb_scope scope)
+ enum ldb_scope scope, bool *matched)
{
unsigned int i;
const struct {
const char *oid;
- int (*comparator)(const struct ldb_val *, const struct ldb_val *);
+ int (*comparator)(const char *, const struct ldb_val *, const struct ldb_val *, bool *);
} rules[] = {
- { LDB_OID_COMPARATOR_AND, ldb_comparator_and},
- { LDB_OID_COMPARATOR_OR, ldb_comparator_or}
+ { LDB_OID_COMPARATOR_AND, ldb_comparator_bitmask},
+ { LDB_OID_COMPARATOR_OR, ldb_comparator_bitmask}
};
- int (*comp)(const struct ldb_val *, const struct ldb_val *) = NULL;
+ int (*comp)(const char *,const struct ldb_val *, const struct ldb_val *, bool *) = NULL;
struct ldb_message_element *el;
if (tree->u.extended.dnAttributes) {
@@ -324,11 +409,11 @@ static int ldb_match_extended(struct ldb_context *ldb,
}
if (tree->u.extended.rule_id == NULL) {
ldb_debug(ldb, LDB_DEBUG_ERROR, "ldb: no-rule extended matches not supported yet");
- return -1;
+ return LDB_ERR_INAPPROPRIATE_MATCHING;
}
if (tree->u.extended.attr == NULL) {
ldb_debug(ldb, LDB_DEBUG_ERROR, "ldb: no-attribute extended matches not supported yet");
- return -1;
+ return LDB_ERR_INAPPROPRIATE_MATCHING;
}
for (i=0;i<ARRAY_SIZE(rules);i++) {
@@ -340,21 +425,24 @@ static int ldb_match_extended(struct ldb_context *ldb,
if (comp == NULL) {
ldb_debug(ldb, LDB_DEBUG_ERROR, "ldb: unknown extended rule_id %s",
tree->u.extended.rule_id);
- return -1;
+ return LDB_ERR_INAPPROPRIATE_MATCHING;
}
/* find the message element */
el = ldb_msg_find_element(msg, tree->u.extended.attr);
if (el == NULL) {
- return 0;
+ *matched = false;
+ return LDB_SUCCESS;
}
for (i=0;i<el->num_values;i++) {
- int ret = comp(&el->values[i], &tree->u.extended.value);
- if (ret == -1 || ret == 1) return ret;
+ int ret = comp(tree->u.extended.rule_id, &el->values[i], &tree->u.extended.value, matched);
+ if (ret != LDB_SUCCESS) return ret;
+ if (*matched) return LDB_SUCCESS;
}
- return 0;
+ *matched = false;
+ return LDB_SUCCESS;
}
/*
@@ -368,53 +456,61 @@ static int ldb_match_extended(struct ldb_context *ldb,
static int ldb_match_message(struct ldb_context *ldb,
const struct ldb_message *msg,
const struct ldb_parse_tree *tree,
- enum ldb_scope scope)
+ enum ldb_scope scope, bool *matched)
{
unsigned int i;
- int v;
+ int ret;
+
+ *matched = false;
switch (tree->operation) {
case LDB_OP_AND:
for (i=0;i<tree->u.list.num_elements;i++) {
- v = ldb_match_message(ldb, msg, tree->u.list.elements[i], scope);
- if (!v) return 0;
+ ret = ldb_match_message(ldb, msg, tree->u.list.elements[i], scope, matched);
+ if (ret != LDB_SUCCESS) return ret;
+ if (!*matched) return LDB_SUCCESS;
}
- return 1;
+ *matched = true;
+ return LDB_SUCCESS;
case LDB_OP_OR:
for (i=0;i<tree->u.list.num_elements;i++) {
- v = ldb_match_message(ldb, msg, tree->u.list.elements[i], scope);
- if (v) return 1;
+ ret = ldb_match_message(ldb, msg, tree->u.list.elements[i], scope, matched);
+ if (ret != LDB_SUCCESS) return ret;
+ if (*matched) return LDB_SUCCESS;
}
- return 0;
+ *matched = false;
+ return LDB_SUCCESS;
case LDB_OP_NOT:
- return ! ldb_match_message(ldb, msg, tree->u.isnot.child, scope);
+ ret = ldb_match_message(ldb, msg, tree->u.isnot.child, scope, matched);
+ if (ret != LDB_SUCCESS) return ret;
+ *matched = ! *matched;
+ return LDB_SUCCESS;
case LDB_OP_EQUALITY:
- return ldb_match_equality(ldb, msg, tree, scope);
+ return ldb_match_equality(ldb, msg, tree, scope, matched);
case LDB_OP_SUBSTRING:
- return ldb_match_substring(ldb, msg, tree, scope);
+ return ldb_match_substring(ldb, msg, tree, scope, matched);
case LDB_OP_GREATER:
- return ldb_match_comparison(ldb, msg, tree, scope, LDB_OP_GREATER);
+ return ldb_match_comparison(ldb, msg, tree, scope, LDB_OP_GREATER, matched);
case LDB_OP_LESS:
- return ldb_match_comparison(ldb, msg, tree, scope, LDB_OP_LESS);
+ return ldb_match_comparison(ldb, msg, tree, scope, LDB_OP_LESS, matched);
case LDB_OP_PRESENT:
- return ldb_match_present(ldb, msg, tree, scope);
+ return ldb_match_present(ldb, msg, tree, scope, matched);
case LDB_OP_APPROX:
- return ldb_match_comparison(ldb, msg, tree, scope, LDB_OP_APPROX);
+ return ldb_match_comparison(ldb, msg, tree, scope, LDB_OP_APPROX, matched);
case LDB_OP_EXTENDED:
- return ldb_match_extended(ldb, msg, tree, scope);
-
+ return ldb_match_extended(ldb, msg, tree, scope, matched);
}
- return 0;
+ return LDB_ERR_INAPPROPRIATE_MATCHING;
}
int ldb_match_msg(struct ldb_context *ldb,
@@ -423,11 +519,35 @@ int ldb_match_msg(struct ldb_context *ldb,
struct ldb_dn *base,
enum ldb_scope scope)
{
+ bool matched;
+ int ret;
+
if ( ! ldb_match_scope(ldb, base, msg->dn, scope) ) {
return 0;
}
- return ldb_match_message(ldb, msg, tree, scope);
+ ret = ldb_match_message(ldb, msg, tree, scope, &matched);
+ if (ret != LDB_SUCCESS) {
+ /* to match the old API, we need to consider this a
+ failure to match */
+ return 0;
+ }
+ return matched?1:0;
+}
+
+int ldb_match_msg_error(struct ldb_context *ldb,
+ const struct ldb_message *msg,
+ const struct ldb_parse_tree *tree,
+ struct ldb_dn *base,
+ enum ldb_scope scope,
+ bool *matched)
+{
+ if ( ! ldb_match_scope(ldb, base, msg->dn, scope) ) {
+ *matched = false;
+ return LDB_SUCCESS;
+ }
+
+ return ldb_match_message(ldb, msg, tree, scope, matched);
}
int ldb_match_msg_objectclass(const struct ldb_message *msg,
generated by cgit (git 2.34.1) at 2024-11-26 16:58:20 +0000