static bool remove_entry(char *addr4, __u8 len4, char *addr6, __u8 len6,
int expected_error)
{
struct ipv4_prefix prefix4;
struct ipv6_prefix prefix6;
bool success;
int error;
log_debug("----------------");
log_debug("Removing entry %s/%u %s/%u", addr6, len6, addr4, len4);
if (!addr4 && !addr6) {
log_err("Both addr4 and addr6 are NULL.");
return false;
}
if (addr4) {
if (is_error(str_to_addr4(addr4, &prefix4.address)))
return false;
prefix4.len = len4;
}
if (addr6) {
if (is_error(str_to_addr6(addr6, &prefix6.address)))
return false;
prefix6.len = len6;
}
error = eamt_rm(addr6 ? &prefix6 : NULL, addr4 ? &prefix4 : NULL);
success = ASSERT_INT(expected_error, error, "removing EAM entry");
/* rtrie_print(eamt.tree6); */
return success;
}
static int handle_eamt_rm(struct eam_table *eamt, union request_eamt *request)
{
struct ipv6_prefix *prefix6;
struct ipv4_prefix *prefix4;
log_debug("Removing EAMT entry.");
prefix6 = request->rm.prefix6_set ? &request->rm.prefix6 : NULL;
prefix4 = request->rm.prefix4_set ? &request->rm.prefix4 : NULL;
return eamt_rm(eamt, prefix6, prefix4);
}
static int handle_eamt_config(struct nlmsghdr *nl_hdr, struct request_hdr *jool_hdr,
union request_eamt *request)
{
__u64 count;
int error;
if (xlat_is_nat64()) {
log_err("Stateful NAT64 doesn't have an EAMT.");
return -EINVAL;
}
switch (jool_hdr->operation) {
case OP_DISPLAY:
return handle_eamt_display(nl_hdr, request);
case OP_COUNT:
log_debug("Returning EAMT count.");
error = eamt_count(&count);
if (error)
return respond_error(nl_hdr, error);
return respond_setcfg(nl_hdr, &count, sizeof(count));
case OP_TEST:
return handle_eamt_test(nl_hdr, request);
case OP_ADD:
if (verify_superpriv())
return respond_error(nl_hdr, -EPERM);
log_debug("Adding EAMT entry.");
return respond_error(nl_hdr, eamt_add(&request->add.prefix6,
&request->add.prefix4, request->add.force));
case OP_REMOVE:
if (verify_superpriv())
return respond_error(nl_hdr, -EPERM);
log_debug("Removing EAMT entry.");
return respond_error(nl_hdr, eamt_rm(
request->rm.prefix6_set ? &request->rm.prefix6 : NULL,
request->rm.prefix4_set ? &request->rm.prefix4 : NULL));
case OP_FLUSH:
if (verify_superpriv())
return respond_error(nl_hdr, -EPERM);
eamt_flush();
return respond_error(nl_hdr, 0);
default:
log_err("Unknown operation: %d", jool_hdr->operation);
return respond_error(nl_hdr, -EINVAL);
}
}
