#include "filter.h"
#include "stream.h"
#include "jhash.h"
+#include "frrstr.h"
#include "bgpd/bgpd.h"
#include "bgpd/bgp_community.h"
/* If name is made by all digit character. We treat it as
number. */
for (number = 0, i = 0; i < strlen(name); i++) {
- if (isdigit((int)name[i]))
+ if (isdigit((unsigned char)name[i]))
number = (number * 10) + (name[i] - '0');
else
break;
return 0;
}
+
+/* Perform exact matching. In case of expanded large-community-list, do
+ * same thing as lcommunity_list_match().
+ */
+int lcommunity_list_exact_match(struct lcommunity *lcom,
+ struct community_list *list)
+{
+ struct community_entry *entry;
+
+ for (entry = list->head; entry; entry = entry->next) {
+ if (entry->any)
+ return entry->direct == COMMUNITY_PERMIT ? 1 : 0;
+
+ if (entry->style == LARGE_COMMUNITY_LIST_STANDARD) {
+ if (lcommunity_cmp(lcom, entry->u.com))
+ return entry->direct == COMMUNITY_PERMIT ? 1
+ : 0;
+ } else if (entry->style == LARGE_COMMUNITY_LIST_EXPANDED) {
+ if (lcommunity_regexp_match(lcom, entry->reg))
+ return entry->direct == COMMUNITY_PERMIT ? 1
+ : 0;
+ }
+ }
+ return 0;
+}
+
int ecommunity_list_match(struct ecommunity *ecom, struct community_list *list)
{
struct community_entry *entry;
/* Delete all of the communities we flagged for deletion */
for (i = delete_index - 1; i >= 0; i--) {
val = community_val_get(com, com_index_to_delete[i]);
+ val = htonl(val);
community_del_val(com, &val);
}
return lcom;
}
+/* Helper to check if every octet do not exceed UINT_MAX */
+static int lcommunity_list_valid(const char *community)
+{
+ int octets = 0;
+ char **splits;
+ int num;
+
+ frrstr_split(community, ":", &splits, &num);
+
+ for (int i = 0; i < num; i++) {
+ if (strtoul(splits[i], NULL, 10) > UINT_MAX)
+ return 0;
+
+ if (strlen(splits[i]) == 0)
+ return 0;
+
+ octets++;
+ XFREE(MTYPE_TMP, splits[i]);
+ }
+ XFREE(MTYPE_TMP, splits);
+
+ if (octets < 3)
+ return 0;
+
+ return 1;
+}
+
/* Set lcommunity-list. */
int lcommunity_list_set(struct community_list_handler *ch, const char *name,
const char *str, int direct, int style)
}
if (str) {
+ if (!lcommunity_list_valid(str))
+ return COMMUNITY_LIST_ERR_MALFORMED_VAL;
+
if (style == LARGE_COMMUNITY_LIST_STANDARD)
lcom = lcommunity_str2com(str);
else