int handle_pool4_config(struct xlator *jool, struct genl_info *info)
{
struct request_hdr *hdr = get_jool_hdr(info);
union request_pool4 *request = (union request_pool4 *)(hdr + 1);
int error;
if (xlat_is_siit()) {
log_err("SIIT doesn't have pool4.");
return nlcore_respond(info, -EINVAL);
}
error = validate_request_size(info, sizeof(*request));
if (error)
return nlcore_respond(info, error);
switch (hdr->operation) {
case OP_FOREACH:
return handle_pool4_display(jool->nat64.pool4, info, request);
case OP_ADD:
return handle_pool4_add(jool->nat64.pool4, info, request);
case OP_UPDATE:
return handle_pool4_update(jool->nat64.pool4, info, request);
case OP_REMOVE:
return handle_pool4_rm(jool, info, request);
case OP_FLUSH:
return handle_pool4_flush(jool, info, request);
}
log_err("Unknown operation: %u", hdr->operation);
return nlcore_respond(info, -EINVAL);
}
int handle_session_config(struct xlator *jool, struct genl_info *info)
{
struct request_hdr *hdr;
struct request_session *request;
int error;
if (xlat_is_siit()) {
log_err("SIIT doesn't have session tables.");
return nlcore_respond(info, -EINVAL);
}
hdr = get_jool_hdr(info);
request = (struct request_session *)(hdr + 1);
error = validate_request_size(info, sizeof(*request));
if (error)
return nlcore_respond(info, error);
switch (be16_to_cpu(hdr->operation)) {
case OP_DISPLAY:
return handle_session_display(jool->nat64.bib, info, request);
case OP_COUNT:
return handle_session_count(jool->nat64.bib, info, request);
}
log_err("Unknown operation: %u", be16_to_cpu(hdr->operation));
return nlcore_respond(info, -EINVAL);
}
static int __handle_jool_message(struct genl_info *info)
{
struct xlator translator;
bool client_is_jool;
int error;
log_debug("===============================================");
log_debug("Received a request from userspace.");
error = validate_request(nla_data(info->attrs[ATTR_DATA]),
nla_len(info->attrs[ATTR_DATA]),
"userspace client",
"kernel module",
&client_is_jool);
if (error)
return client_is_jool ? nlcore_respond(info, error) : error;
if (be16_to_cpu(get_jool_hdr(info)->mode) == MODE_INSTANCE)
return handle_instance_request(info);
error = xlator_find_current(&translator);
if (error == -ESRCH) {
log_err("This namespace lacks a Jool instance.");
return nlcore_respond(info, -ESRCH);
}
if (error) {
log_err("Unknown error %d; Jool instance not found.", error);
return nlcore_respond(info, error);
}
error = multiplex_request(&translator, info);
xlator_put(&translator);
return error;
}
static int multiplex_request(struct xlator *jool, struct genl_info *info)
{
struct request_hdr *hdr = get_jool_hdr(info);
switch (be16_to_cpu(hdr->mode)) {
case MODE_POOL6:
return handle_pool6_config(jool, info);
case MODE_POOL4:
return handle_pool4_config(jool, info);
case MODE_BIB:
return handle_bib_config(jool, info);
case MODE_SESSION:
return handle_session_config(jool, info);
case MODE_EAMT:
return handle_eamt_config(jool, info);
case MODE_RFC6791:
return handle_pool6791_config(jool, info);
case MODE_BLACKLIST:
return handle_blacklist_config(jool, info);
case MODE_LOGTIME:
return handle_logtime_config(info);
case MODE_GLOBAL:
return handle_global_config(jool, info);
case MODE_PARSE_FILE:
return handle_atomconfig_request(jool, info);
case MODE_JOOLD:
return handle_joold_request(jool, info);
case MODE_INSTANCE:
return handle_instance_request(info);
}
log_err("Unknown configuration mode: %d", be16_to_cpu(hdr->mode));
return nlcore_respond(info, -EINVAL);
}
int handle_eamt_config(struct xlator *jool, struct genl_info *info)
{
struct request_hdr *hdr;
union request_eamt *request;
int error;
if (xlat_is_nat64()) {
log_err("Stateful NAT64 doesn't have an EAMT.");
return nlcore_respond(info, -EINVAL);
}
hdr = get_jool_hdr(info);
request = (union request_eamt *)(hdr + 1);
error = validate_request_size(info, sizeof(*request));
if (error)
return nlcore_respond(info, error);
switch (be16_to_cpu(hdr->operation)) {
case OP_DISPLAY:
return handle_eamt_display(jool->siit.eamt, info, request);
case OP_COUNT:
return handle_eamt_count(jool->siit.eamt, info);
case OP_ADD:
error = handle_eamt_add(jool->siit.eamt, request);
break;
case OP_REMOVE:
error = handle_eamt_rm(jool->siit.eamt, request);
break;
case OP_FLUSH:
error = handle_eamt_flush(jool->siit.eamt);
break;
default:
log_err("Unknown operation: %u", be16_to_cpu(hdr->operation));
error = -EINVAL;
}
return nlcore_respond(info, error);
}