static struct ematch_util *get_ematch_kind_num(__u16 kind)
{
char name[32];
if (lookup_map(kind, name, sizeof(name), EMATCH_MAP) < 0)
return NULL;
return get_ematch_kind(name);
}
static int parse_tree(struct nlmsghdr *n, struct ematch *tree)
{
int index = 1;
struct ematch *t;
for (t = tree; t; t = t->next) {
struct rtattr *tail = NLMSG_TAIL(n);
struct tcf_ematch_hdr hdr = {
.flags = t->relation
};
if (t->inverted)
hdr.flags |= TCF_EM_INVERT;
addattr_l(n, MAX_MSG, index++, NULL, 0);
if (t->child) {
__u32 r = t->child_ref;
addraw_l(n, MAX_MSG, &hdr, sizeof(hdr));
addraw_l(n, MAX_MSG, &r, sizeof(r));
} else {
int num = 0, err;
char buf[64];
struct ematch_util *e;
if (t->args == NULL)
return -1;
strncpy(buf, (char*) t->args->data, sizeof(buf)-1);
e = get_ematch_kind(buf);
if (e == NULL) {
fprintf(stderr, "Unknown ematch \"%s\"\n",
buf);
return -1;
}
err = lookup_map_id(buf, &num, EMATCH_MAP);
if (err < 0) {
if (err == -ENOENT)
map_warning(e->kind_num, buf);
return err;
}
hdr.kind = num;
if (e->parse_eopt(n, &hdr, t->args->next) < 0)
return -1;
}
tail->rta_len = (void*) NLMSG_TAIL(n) - (void*) tail;
}
return 0;
}
static int flatten_tree(struct ematch *head, struct ematch *tree)
{
int i, count = 0;
struct ematch *t;
for (;;) {
count++;
if (tree->child) {
for (t = head; t->next; t = t->next);
t->next = tree->child;
count += flatten_tree(head, tree->child);
}
if (tree->relation == 0)
break;
tree = tree->next;
}
for (i = 0, t = head; t; t = t->next, i++)
t->index = i;
for (t = head; t; t = t->next)
if (t->child)
t->child_ref = t->child->index;
return count;
}
