/* !DO NOT ALTER FUNCTION SIGNATURE! */
int callback_ofc_capable_switch_ofc_id (void ** data, XMLDIFF_OP op, xmlNodePtr node, struct nc_err** error)
{
nc_verb_verbose("%s: data=%p, op=%d\n", __PRETTY_FUNCTION__, data, op);
assert(0 == strcmp(node->name, "id"));
assert(node);
assert(node->doc);
assert(node->children);
if ((XMLDIFF_ADD|XMLDIFF_MOD) & op) {
xmlChar* text = xmlNodeListGetString(node->doc, node->children, 1);
nc_verb_verbose("got string: \n%s\n", text);
if (ofc_state.capable_switch_id) {
free(ofc_state.capable_switch_id);
}
ofc_state.capable_switch_id = strdup(text);
xmlFree(text);
} else if (XMLDIFF_REM & op) {
if (ofc_state.capable_switch_id) {
free(ofc_state.capable_switch_id);
ofc_state.capable_switch_id = NULL;
}
} else {
// todo anything else?
nc_verb_verbose("%s: unsupported operation %u\n", __PRETTY_FUNCTION__, op);
assert(0);
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
/* !DO NOT ALTER FUNCTION SIGNATURE! */
int callback_ofc_capable_switch_xdpd_mgmt_cross_connections_xdpd_mgmt_cross_connection (void ** data, XMLDIFF_OP op, xmlNodePtr node, struct nc_err** error)
{
nc_verb_verbose("%s: data=%p, op=%d\n", __PRETTY_FUNCTION__, data, op);
print_element_names(node, 0);
uint64_t dpid_1 = 0;
uint64_t dpid_2 = 0;
uint64_t port_no1 = 0;
uint64_t port_no2 = 0;
if (XMLDIFF_ADD & op) {
int i=0;
xmlNodePtr lsi;
for (lsi = node->children->next; NULL != lsi; lsi = lsi->next, ++i) {
assert(xmlStrEqual(lsi->name, BAD_CAST "switch"));
// resolve dpid
char buf[255];
xmlStrPrintf(buf, sizeof(buf), "/ofc:capable-switch/ofc:logical-switches/ofc:switch[ofc:id='%s']", XML_GET_CONTENT(lsi->children->children));
xmlXPathObjectPtr xpath_obj_ptr = get_node(lsi->doc, namespace_mapping, buf);
assert(xpath_obj_ptr);
assert(xpath_obj_ptr->nodesetval);
// there can only be one lsi with this id
if (1 == xpath_obj_ptr->nodesetval->nodeNr) {
xmlNodePtr dpid_node = find_element(BAD_CAST "datapath-id", xpath_obj_ptr->nodesetval->nodeTab[0]->children);
assert(dpid_node);
if (0 == i) {
dpid_1 = parse_dpid(XML_GET_CONTENT(dpid_node->children));
} else {
dpid_2 = parse_dpid(XML_GET_CONTENT(dpid_node->children));
}
} else {
// otherwise something is really screwed
assert(0);
}
xmlXPathFreeObject(xpath_obj_ptr);
xmlNodePtr requested_portnum = find_element(BAD_CAST "requested-of-port-number", lsi->children);
if (NULL != requested_portnum) {
if (0 == i) {
port_no1 = strtoul(XML_GET_CONTENT(requested_portnum->children), NULL, 10);
} else {
port_no2 = strtoul(XML_GET_CONTENT(requested_portnum->children), NULL, 10);
}
}
}
nc_verb_verbose("dpid_1 = %lx, dpid_2 = %lx\n", dpid_1, dpid_2);
lsi_cross_connect(ofc_state.xmp_client_handle, dpid_1, port_no1, dpid_2, port_no2);
}
return EXIT_SUCCESS;
}
int
ofcds_init(void *UNUSED(data))
{
if (!ovsdb_path) {
/* default path */
asprintf(&ovsdb_path, "unix:%s/db.sock", ovs_rundir());
}
if (ofc_init(ovsdb_path) == false) {
return EXIT_FAILURE;
}
/* hack - OVS calls openlog() and rewrites the syslog settings of the
* ofc-server. So we have to rewrite syslog settings back by another
* openlog() call */
if (ofc_daemonize) {
openlog("ofc-server", LOG_PID, LOG_DAEMON);
} else {
openlog("ofc-server", LOG_PID | LOG_PERROR, LOG_DAEMON);
}
/* get startup data */
gds_startup = xmlReadFile(OFC_DATADIR "/startup.xml", NULL, XML_READ_OPT);
/* check that there are some data, if not, continue with empty startup */
if (!xmlDocGetRootElement(gds_startup)) {
xmlFreeDoc(gds_startup);
gds_startup = NULL;
}
nc_verb_verbose("OF-CONFIG datastore initialized.");
return EXIT_SUCCESS;
}
/* !DO NOT ALTER FUNCTION SIGNATURE! */
int callback_ofc_capable_switch_ofc_logical_switches (void ** data, XMLDIFF_OP op, xmlNodePtr node, struct nc_err** error)
{
nc_verb_verbose("%s: data=%p, op=%d\n", __PRETTY_FUNCTION__, data, op);
print_element_names(node, 0);
int rv = EXIT_SUCCESS;
if (NULL != node->children) {
assert(ofc_state.lsi_list);
assert(XMLDIFF_CHAIN & op);
if ((XMLDIFF_ADD|XMLDIFF_REM|XMLDIFF_MOD|XMLDIFF_CHAIN) & op) {
struct lsi *current_lsi;
while ( (current_lsi = list_next(ofc_state.lsi_list)) ) {
handle_ports(current_lsi->res.port_list_del);
}
while ( (current_lsi = list_pop_head(ofc_state.lsi_list)) ) {
handle_ports(current_lsi->res.port_list_add);
lsi_cleanup(current_lsi);
}
} else {
nc_verb_error("unsupported op");
assert(0);
}
list_delete(ofc_state.lsi_list);
ofc_state.lsi_list = NULL;
}
return rv;
}
/* Signal handler - controls main loop */
void
signal_handler(int sig)
{
nc_verb_verbose("Signal %d received.", sig);
switch (sig) {
case SIGINT:
case SIGTERM:
case SIGQUIT:
case SIGABRT:
case SIGKILL:
if (mainloop == 0) {
/* first attempt */
mainloop = 1;
} else {
/* second attempt */
nc_verb_error("Hey! I need some time, be patient next time!");
exit(EXIT_FAILURE);
}
break;
default:
nc_verb_error("Exiting on signal: %d", sig);
exit(EXIT_FAILURE);
break;
}
}
/* !DO NOT ALTER FUNCTION SIGNATURE! */
int callback_ofc_capable_switch_ofc_logical_switches_ofc_switch_ofc_controllers_ofc_controller (void ** data, XMLDIFF_OP op, xmlNodePtr node, struct nc_err** error)
{
nc_verb_verbose("%s: data=%p, op=%d\n", __PRETTY_FUNCTION__, data, op);
print_element_names(node, 0);
if (NULL == *data) {
*data = calloc(1, sizeof(struct lsi));
assert(*data);
}
if ((XMLDIFF_ADD) & op) {
if (NULL == LSI(data)->controller_list_add) {
LSI(data)->controller_list_add = list_new();
assert(LSI(data)->controller_list_add);
}
list_append_data(LSI(data)->controller_list_add, __data);
__data = NULL;
} else if ((XMLDIFF_REM) & op) {
if (NULL == LSI(data)->controller_list_del) {
LSI(data)->controller_list_del = list_new();
assert(LSI(data)->controller_list_del);
}
list_append_data(LSI(data)->controller_list_del, __data);
__data = NULL;
} else {
nc_verb_error("not implemented");
assert(0);
}
return EXIT_SUCCESS;
}
/**
* @brief Free all resources allocated on plugin runtime and prepare plugin for removal.
*/
void netopeer_transapi_close_tls(void) {
struct np_trusted_cert* cert, *del_cert;
struct np_ctn_item* item, *del_item;
nc_verb_verbose("Netopeer TLS cleanup.");
free(netopeer_options.tls_opts->server_cert);
free(netopeer_options.tls_opts->server_key);
for (cert = netopeer_options.tls_opts->trusted_certs; cert != NULL;) {
del_cert = cert;
cert = cert->next;
free(del_cert->cert);
free(del_cert);
}
free(netopeer_options.tls_opts->crl_dir);
for (item = netopeer_options.tls_opts->ctn_map; item != NULL;) {
del_item = item;
item = item->next;
free(del_item->fingerprint);
free(del_item->name);
free(del_item);
}
pthread_mutex_destroy(&netopeer_options.tls_opts->tls_ctx_lock);
pthread_mutex_destroy(&netopeer_options.tls_opts->crl_dir_lock);
pthread_mutex_destroy(&netopeer_options.tls_opts->ctn_map_lock);
free(netopeer_options.tls_opts);
netopeer_options.tls_opts = NULL;
}
static void
handle_ports(void *list)
{
if (NULL != list) {
// handle ports
struct port *p;
while ((p = list_pop_head(list))) {
nc_verb_verbose("dpid=%lx port %s with op=%u\n", p->dpid, p->resource_id, p->op);
if (ADD == p->op) {
// attach port
port_attach(ofc_state.xmp_client_handle, p->dpid, p->resource_id);
} else if (DELETE == p->op) {
// detach port
port_detach(ofc_state.xmp_client_handle, p->dpid, p->resource_id);
} else {
assert(0);
}
xmlFree(p->resource_id);
free(p);
}
}
}
/* !DO NOT ALTER FUNCTION SIGNATURE! */
int callback_ofc_capable_switch_ofc_resources_ofc_port_ofc_configuration_ofc_admin_state (void ** data, XMLDIFF_OP op, xmlNodePtr node, struct nc_err** error)
{
nc_verb_verbose("%s: data=%p, op=%d\n", __PRETTY_FUNCTION__, data, op);
print_element_names(node, 0);
int rv = EXIT_SUCCESS;
int down = 0; // default is up
if ((XMLDIFF_ADD|XMLDIFF_MOD) & op) {
if (xmlStrEqual(XML_GET_CONTENT(node->children), BAD_CAST "down")) {
down = 1;
}
// sanity check... if the content is not "down", it has to be "up"
assert(down || xmlStrEqual(XML_GET_CONTENT(node->children), BAD_CAST "up"));
// currently the resource-id is the port name (even if the name is not set
xmlNodePtr tmp = find_element(BAD_CAST "resource-id", node->parent->parent->children);
assert(tmp);
if (down) {
// set interface down
nc_verb_verbose("set interface %s down\n", tmp->children->content);
if (port_disable(ofc_state.xmp_client_handle, tmp->children->content)) {
rv = EXIT_FAILURE;
}
} else {
// set interface up
nc_verb_verbose("set interface %s up\n", tmp->children->content);
if (port_enable(ofc_state.xmp_client_handle, tmp->children->content)) {
rv = EXIT_FAILURE;
}
}
} else if (XMLDIFF_REM & op) {
// setting interface up
} else {
nc_verb_error("unsupported op");
assert(0);
}
return rv;
}
/* !DO NOT ALTER FUNCTION SIGNATURE! */
int callback_ofc_capable_switch (void ** data, XMLDIFF_OP op, xmlNodePtr node, struct nc_err** error)
{
nc_verb_verbose("%s: data=%p, op=%d\n", __PRETTY_FUNCTION__, data, op);
xmlSaveFormatFileEnc("-", node->doc, "UTF-8", 1);
return EXIT_SUCCESS;
}
/**
* @brief Initialize plugin after loaded and before any other functions are called.
* This function should not apply any configuration data to the controlled device. If no
* running is returned (it stays *NULL), complete startup configuration is consequently
* applied via module callbacks. When a running configuration is returned, libnetconf
* then applies (via module's callbacks) only the startup configuration data that
* differ from the returned running configuration data.
* Please note, that copying startup data to the running is performed only after the
* libnetconf's system-wide close - see nc_close() function documentation for more
* information.
* @param[out] running Current configuration of managed device.
* @return EXIT_SUCCESS or EXIT_FAILURE
*/
int transapi_init(xmlDocPtr * running)
{
assert(running);
assert(NULL == *running);
memset(&ofc_state, 0, sizeof(struct of_config__status));
ofc_state.xmp_client_handle = new_xmp_client();
// since we currently cannot query the switch_id we set it manually
ofc_state.capable_switch_id = strdup("xdpd-switch");
// create running config as following:
// +--rw capable-switch
// +--rw id inet:uri
// +--rw configuration-points
// +--rw resources
// +--rw logical-switches
nc_verb_verbose("create running config");
*running = xmlNewDoc(BAD_CAST "1.0");
assert(*running);
xmlNodePtr root = xmlNewNode(NULL, BAD_CAST "capable-switch");
assert(root);
xmlDocSetRootElement(*running, root);
xmlNsPtr ns = xmlNewNs(root, BAD_CAST namespace_mapping[0].href, NULL);
assert(ns);
xmlSetNs(root, ns);
xmlNodePtr id = xmlNewChild(root, ns, BAD_CAST "id", BAD_CAST ofc_state.capable_switch_id);
assert(id);
xmlNodePtr config_points = xmlNewChild(root, ns, BAD_CAST "configuration-points", NULL);
assert(config_points);
xmlNodePtr resources = xmlNewChild(root, ns, BAD_CAST "resources", NULL);
assert(resources);
get_resources(ofc_state.xmp_client_handle, resources);
xmlNodePtr lsis = xmlNewChild(root, ns, BAD_CAST "logical-switches", NULL);
assert(lsis);
get_lsi_config(ofc_state.xmp_client_handle, lsis);
xmlSaveFormatFileEnc("-", *running, "UTF-8", 1);
nc_verb_verbose("init done\n");
return EXIT_SUCCESS;
}
int netopeer_transapi_init_tls(void) {
/* there is no default configuration, but what the heck */
nc_verb_verbose("Setting the default configuration for the cfgnetopeer module TLS...");
netopeer_options.tls_opts = calloc(1, sizeof(struct np_options_tls));
pthread_mutex_init(&netopeer_options.tls_opts->tls_ctx_lock, NULL);
pthread_mutex_init(&netopeer_options.tls_opts->crl_dir_lock, NULL);
pthread_mutex_init(&netopeer_options.tls_opts->ctn_map_lock, NULL);
return EXIT_SUCCESS;
}
/**
* @brief Free all resources allocated on plugin runtime and prepare plugin for removal.
*/
void transapi_close(void)
{
delete_xmp_client(ofc_state.xmp_client_handle);
ofc_state.xmp_client_handle = NULL;
if(ofc_state.capable_switch_id) {
free(ofc_state.capable_switch_id);
ofc_state.capable_switch_id = NULL;
}
nc_verb_verbose("closed\n");
return;
}
int
ofcds_unlock(void *UNUSED(data), NC_DATASTORE target, const char *session_id,
struct nc_err **error)
{
int *locked;
char **sid;
switch (target) {
case NC_DATASTORE_RUNNING:
locked = &(locks.running);
sid = &(locks.running_sid);
break;
case NC_DATASTORE_STARTUP:
locked = &(locks.startup);
sid = &(locks.startup_sid);
break;
case NC_DATASTORE_CANDIDATE:
locked = &(locks.cand);
sid = &(locks.cand_sid);
break;
default:
/* handled by libnetconf */
return EXIT_FAILURE;
}
if (*locked) {
if (strcmp(*sid, session_id) == 0) {
/* correct request, unlock */
*locked = 0;
free(*sid);
*sid = NULL;
nc_verb_verbose("OFC datastore %d unlocked by %s.", target,
session_id);
} else {
/* locked by another session */
*error = nc_err_new(NC_ERR_LOCK_DENIED);
nc_err_set(*error, NC_ERR_PARAM_INFO_SID, *sid);
nc_err_set(*error, NC_ERR_PARAM_MSG,
"Target datastore is locked by another session.");
return EXIT_FAILURE;
}
} else {
/* not locked */
*error = nc_err_new(NC_ERR_OP_FAILED);
nc_err_set(*error, NC_ERR_PARAM_MSG,
"Target datastore is not locked.");
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
/**
* @brief Free all resources allocated on plugin runtime and prepare plugin for removal.
*/
void netopeer_transapi_close(void) {
#ifdef NP_TLS
if (ncds_feature_isenabled("cfgnetopeer", "tls")) {
netopeer_transapi_close_tls();
}
#endif
#ifdef NP_SSH
if (ncds_feature_isenabled("cfgnetopeer", "ssh")) {
netopeer_transapi_close_ssh();
}
#endif
nc_verb_verbose("Netopeer cleanup.");
while (netopeer_options.modules) {
module_disable(netopeer_options.modules, 1);
}
}
/* !DO NOT ALTER FUNCTION SIGNATURE! */
int callback_ofc_capable_switch_ofc_logical_switches_ofc_switch_ofc_controllers_ofc_controller_ofc_ip_address (void ** data, XMLDIFF_OP op, xmlNodePtr node, struct nc_err** error)
{
nc_verb_verbose("%s: data=%p, op=%d\n", __PRETTY_FUNCTION__, data, op);
assert(__data);
if ((XMLDIFF_ADD) & op) {
// fixme handle zone in address (see http://www.netconfcentral.org/modules/ietf-inet-types)
CONTROLLER(__data)->ip_domain = parse_ip_address(XML_GET_CONTENT(node->children), &CONTROLLER(__data)->ip);
} else if ((XMLDIFF_REM) & op) {
} else {
nc_verb_error("not implemented");
assert(0);
}
return EXIT_SUCCESS;
}
/* !DO NOT ALTER FUNCTION SIGNATURE! */
int callback_ofc_capable_switch_ofc_logical_switches_ofc_switch_ofc_controllers_ofc_controller_ofc_port (void ** data, XMLDIFF_OP op, xmlNodePtr node, struct nc_err** error)
{
nc_verb_verbose("%s: data=%p, op=%d\n", __PRETTY_FUNCTION__, data, op);
assert(__data);
if ((XMLDIFF_ADD) & op) {
CONTROLLER(__data)->port = strtoul(XML_GET_CONTENT(node->children), NULL, 10);
} else if ((XMLDIFF_REM) & op) {
} else {
nc_verb_error("not implemented");
assert(0);
}
return EXIT_SUCCESS;
}
/* !DO NOT ALTER FUNCTION SIGNATURE! */
int callback_ofc_capable_switch_ofc_logical_switches_ofc_switch_ofc_controllers_ofc_controller_ofc_id (void ** data, XMLDIFF_OP op, xmlNodePtr node, struct nc_err** error)
{
nc_verb_verbose("%s: data=%p, op=%d\n", __PRETTY_FUNCTION__, data, op);
assert(NULL == __data);
if ((XMLDIFF_ADD|XMLDIFF_REM) & op) {
__data = calloc(1, sizeof(struct controller));
CONTROLLER(__data)->id = strdup(XML_GET_CONTENT(node->children));
assert(CONTROLLER(__data)->id);
} else {
nc_verb_error("not implemented");
assert(0);
}
return EXIT_SUCCESS;
}
/**
* @brief Free all resources allocated on plugin runtime and prepare plugin for removal.
*/
void netopeer_transapi_close_ssh(void) {
struct np_auth_key* key, *del_key;
nc_verb_verbose("Netopeer SSH cleanup.");
free(netopeer_options.ssh_opts->rsa_key);
free(netopeer_options.ssh_opts->dsa_key);
for (key = netopeer_options.ssh_opts->client_auth_keys; key != NULL;) {
del_key = key;
key = key->next;
free(del_key->path);
free(del_key->username);
free(del_key);
}
pthread_mutex_destroy(&netopeer_options.ssh_opts->client_keys_lock);
free(netopeer_options.ssh_opts);
netopeer_options.ssh_opts = NULL;
}
int
ofcds_lock(void *UNUSED(data), NC_DATASTORE target, const char *session_id,
struct nc_err **error)
{
int *locked;
char **sid;
switch (target) {
case NC_DATASTORE_RUNNING:
locked = &(locks.running);
sid = &(locks.running_sid);
break;
case NC_DATASTORE_STARTUP:
locked = &(locks.startup);
sid = &(locks.startup_sid);
break;
case NC_DATASTORE_CANDIDATE:
locked = &(locks.cand);
sid = &(locks.cand_sid);
break;
default:
/* handled by libnetconf */
return EXIT_FAILURE;
}
if (*locked) {
/* datastore is already locked */
*error = nc_err_new(NC_ERR_LOCK_DENIED);
nc_err_set(*error, NC_ERR_PARAM_INFO_SID, *sid);
return EXIT_FAILURE;
} else {
/* remember the lock */
*locked = 1;
*sid = strdup(session_id);
nc_verb_verbose("OFC datastore %d locked by %s.", target, session_id);
}
return EXIT_SUCCESS;
}
/* !DO NOT ALTER FUNCTION SIGNATURE! */
int callback_ofc_capable_switch_ofc_logical_switches_ofc_switch_ofc_datapath_id (void ** data, XMLDIFF_OP op, xmlNodePtr node, struct nc_err** error)
{
nc_verb_verbose("%s: data=%p, op=%d\n", __PRETTY_FUNCTION__, data, op);
assert(NULL == __data);
if (NULL == *data) {
*data = calloc(1, sizeof(struct lsi));
assert(*data);
}
if ((XMLDIFF_ADD|XMLDIFF_REM) & op) {
xmlChar* text = xmlNodeListGetString(node->doc, node->children, 1);
uint64_t dpid = parse_dpid(text);
xmlFree(text);
LSI(data)->dpid = dpid;
} else {
// todo add operation to modify dpid
nc_verb_error("not implemented");
assert(0);
}
return EXIT_SUCCESS;
}
/**
* @brief Retrieve state data from device and return them as XML document
*
* @param model Device data model. libxml2 xmlDocPtr.
* @param running Running datastore content. libxml2 xmlDocPtr.
* @param[out] err Double pointer to error structure. Fill error when some occurs.
* @return State data as libxml2 xmlDocPtr or NULL in case of error.
*/
xmlDocPtr get_state_data (xmlDocPtr model, xmlDocPtr running, struct nc_err **err)
{
nc_verb_verbose("get_state_data\n");
nc_verb_verbose("erropt=%u\n", erropt);
xmlDocPtr state;
xmlNodePtr root;
xmlNsPtr ns;
state = xmlNewDoc(BAD_CAST "1.0");
root = xmlNewDocNode(state, NULL, BAD_CAST "capable-switch", NULL);
xmlDocSetRootElement(state, root);
ns = xmlNewNs(root, BAD_CAST "urn:onf:of111:config:yang", NULL);
xmlSetNs(root, ns);
// state that should be queried here
// ### base
// #/ofc:capable-switch/ofc:config-version
xmlNewChild(root, ns, BAD_CAST "config-version", BAD_CAST "1.1.1");
// // ### configuration points
// // ### Resources
//
xmlNodePtr resources = xmlNewChild(root, NULL, BAD_CAST "resources", NULL);
// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:number
// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:current-rate
// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:max-rate
// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:state
// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:state/ofc:oper-state
// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:state/ofc:blocked
// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:state/ofc:live
// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:features/ofc:current
// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:features/ofc:current/ofc:rate
// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:features/ofc:current/ofc:auto-negotiate
// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:features/ofc:current/ofc:medium
// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:features/ofc:current/ofc:pause
// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:features/ofc:supported
// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:features/ofc:supported/ofc:rate
// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:features/ofc:supported/ofc:auto-negotiate
// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:features/ofc:supported/ofc:medium
// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:features/ofc:supported/ofc:pause
// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:features/ofc:advertised-peer
// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:features/ofc:advertised-peer/ofc:rate
// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:features/ofc:advertised-peer/ofc:auto-negotiate
// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:features/ofc:advertised-peer/ofc:medium
// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:features/ofc:advertised-peer/ofc:pause
get_port_info(ofc_state.xmp_client_handle, resources, running);
xmlNodePtr lsis = xmlNewChild(root, NULL, BAD_CAST "logical-switches", NULL);
// ### LSIs
// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities
// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities/ofc:max-buffered-packets
// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities/ofc:max-tables
// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities/ofc:max-ports
// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities/ofc:flow-statistics
// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities/ofc:table-statistics
// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities/ofc:port-statistics
// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities/ofc:group-statistics
// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities/ofc:queue-statistics
// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities/ofc:reassemble-ip-fragments
// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities/ofc:block-looping-ports
// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities/ofc:reserved-port-types
// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities/ofc:reserved-port-types/ofc:type
// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities/ofc:group-types
// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities/ofc:group-types/ofc:type
// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities/ofc:group-capabilities
// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities/ofc:group-capabilities/ofc:capability
// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities/ofc:action-types
// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities/ofc:action-types/ofc:type
// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities/ofc:instruction-types
// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities/ofc:instruction-types/ofc:type
// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:controllers/ofc:controller/ofc:state
// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:controllers/ofc:controller/ofc:state/ofc:connection-state
// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:controllers/ofc:controller/ofc:state/ofc:current-version
// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:controllers/ofc:controller/ofc:state/ofc:supported-versions
// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:controllers/ofc:controller/ofc:state/ofc:local-ip-address-in-use
// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:controllers/ofc:controller/ofc:state/ofc:local-port-in-use
get_lsi_info(ofc_state.xmp_client_handle, lsis, running);
return state;
}
/* !DO NOT ALTER FUNCTION SIGNATURE! */
int callback_ofc_capable_switch_ofc_logical_switches_ofc_switch_ofc_resources_ofc_port (void ** data, XMLDIFF_OP op, xmlNodePtr node, struct nc_err** error)
{
nc_verb_verbose("%s: data=%p, op=%d\n", __PRETTY_FUNCTION__, data, op);
print_element_names(node, 0);
// retrieve the dpid of this twig
xmlNodePtr tmp = find_element(BAD_CAST "datapath-id", node->parent->parent->children);
assert(tmp);
uint64_t dpid = parse_dpid(tmp->children->content);
int rv = EXIT_SUCCESS;
// fixme depending on the erropt (e.g. NC_EDIT_ERROPT_ROLLBACK we might still have *data set)
assert(data);
if (NULL == *data) {
*data = calloc(1, sizeof(struct lsi));
assert(*data);
}
if (XMLDIFF_ADD & op) {
xmlChar buf[255];
// check if port is already attached
xmlStrPrintf(buf, sizeof(buf), "/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:resources/ofc:port[text()='%s']", XML_GET_CONTENT(node->children));
xmlXPathObjectPtr xpath_obj_ptr = get_node(node->doc, namespace_mapping, buf);
assert(xpath_obj_ptr);
assert(xpath_obj_ptr->nodesetval);
if (1 == xpath_obj_ptr->nodesetval->nodeNr) {
if (NULL == LSI(data)->res.port_list_add) {
LSI(data)->res.port_list_add = list_new();
assert(((struct lsi* )*data)->res.port_list_add);
}
struct port *p = calloc(1, sizeof(struct port));
p->resource_id = xmlNodeListGetString(node->doc, node->children, 1);
p->op = ADD;
p->dpid = dpid;
list_append_data(LSI(data)->res.port_list_add, p);
nc_verb_verbose("added to list: dpid=%lx port %s with op=%u\n", p->dpid, p->resource_id, p->op);
} else {
// nodeNr > 1 ==> already attached port
nc_verb_verbose("attachment failed dpid=%lx port %s: port already attached.\n", dpid, XML_GET_CONTENT(node->children));
rv = EXIT_FAILURE;
}
xmlXPathFreeObject(xpath_obj_ptr);
} else if (XMLDIFF_REM & op) {
if (NULL == LSI(data)->res.port_list_del) {
LSI(data)->res.port_list_del = list_new();
assert(((struct lsi* ) *data)->res.port_list_del);
}
struct port *p = calloc(1, sizeof(struct port));
p->resource_id = xmlNodeListGetString(node->doc, node->children, 1);
p->op = DELETE;
p->dpid = dpid;
list_append_data(LSI(data)->res.port_list_del, p);
nc_verb_verbose("added to list: dpid=%lx port %s with op=%u\n", p->dpid, p->resource_id, p->op);
} else {
// todo implement
nc_verb_error("not implemented");
assert(0);
}
return rv;
}
/* !DO NOT ALTER FUNCTION SIGNATURE! */
int callback_ofc_capable_switch_ofc_resources_ofc_port_ofc_features (void ** data, XMLDIFF_OP op, xmlNodePtr node, struct nc_err** error)
{
nc_verb_verbose("%s: data=%p, op=%d\n", __PRETTY_FUNCTION__, data, op);
print_element_names(node, 0);
return EXIT_SUCCESS;
}
int cmd_feature(const char* arg) {
char* argv, *ptr, *state_str, *saveptr;
int i, ret = 0;
struct model_list* list;
struct data_model* model;
if (strlen(arg) < 8) {
cmd_feature_help();
return 1;
}
argv = strdupa(arg + strlen("feature "));
ptr = strtok_r(argv, " ", &saveptr);
if (ptr == NULL) {
cmd_feature_help();
return 1;
}
list = find_model(ptr);
if (list == NULL) {
nc_verb_error("No model \"%s\" found", ptr);
return 1;
}
model = list->model;
ptr = strtok_r(NULL, " ", &saveptr);
/* we are done, no more arguments */
if (ptr == NULL) {
printf("Features:\n");
if (model->features == NULL) {
printf("\tnone\n");
return 0;
}
for (i = 0; model->features[i] != NULL; ++i) {
printf("\t%s %s\n", model->features[i]->name, (model->features[i]->enabled ? "ON" : "OFF"));
}
return 0;
}
do {
state_str = strtok_r(NULL, " ", &saveptr);
} while (state_str != NULL && strcmp(state_str, "on") != 0 && strcmp(state_str, "off") != 0);
/* there was no "yes" or "no" at the end */
if (state_str == NULL) {
cmd_feature_help();
return 1;
}
if (model->features == NULL) {
nc_verb_error("Model does not have any features");
return 1;
}
/* all features */
if (strcmp(ptr, "*") == 0) {
for (i = 0; model->features[i] != NULL; ++i) {
if (strcmp(state_str, "on") == 0) {
model->features[i]->enabled = 1;
} else {
model->features[i]->enabled = 0;
}
}
} else {
/* one or more features */
ptr = argv + strlen(argv)+1;
while (ptr != state_str) {
for (i = 0; model->features[i] != NULL; ++i) {
if (strcmp(model->features[i]->name, ptr) == 0) {
if ((model->features[i]->enabled && strcmp(state_str, "on") == 0) || (!model->features[i]->enabled && strcmp(state_str, "off") == 0)) {
nc_verb_verbose("Feature \"%s\" is already %s", ptr, state_str);
} else if (strcmp(state_str, "on") == 0) {
model->features[i]->enabled = 1;
} else {
model->features[i]->enabled = 0;
}
break;
}
}
if (model->features[i] == NULL) {
nc_verb_error("Model does not have the feature \"%s\"", ptr);
ret = 1;
}
ptr = ptr + strlen(ptr)+1;
}
}
return ret;
}
/* !DO NOT ALTER FUNCTION SIGNATURE! */
int callback_ofc_capable_switch_ofc_logical_switches_ofc_switch_ofc_controllers (void ** data, XMLDIFF_OP op, xmlNodePtr node, struct nc_err** error)
{
nc_verb_verbose("%s: data=%p, op=%d\n", __PRETTY_FUNCTION__, data, op);
nc_verb_verbose("currently ignored");
return EXIT_SUCCESS;
}
int netopeer_transapi_init_ssh(void) {
xmlDocPtr doc;
struct nc_err* error = NULL;
const char* str_err;
nc_verb_verbose("Setting the default configuration for the cfgnetopeer module SSH...");
netopeer_options.ssh_opts = calloc(1, sizeof(struct np_options_ssh));
pthread_mutex_init(&netopeer_options.ssh_opts->client_keys_lock, NULL);
doc = xmlReadDoc(BAD_CAST "<netopeer xmlns=\"urn:cesnet:tmc:netopeer:1.0\"><ssh><server-keys><rsa-key>/etc/ssh/ssh_host_rsa_key</rsa-key></server-keys><password-auth-enabled>true</password-auth-enabled><auth-attempts>3</auth-attempts><auth-timeout>10</auth-timeout></ssh></netopeer>",
NULL, NULL, 0);
if (doc == NULL) {
nc_verb_error("Unable to parse the default cfgnetopeer SSH configuration.");
return EXIT_FAILURE;
}
if (callback_n_netopeer_n_ssh_n_server_keys_n_rsa_key(NULL, XMLDIFF_ADD, NULL, doc->children->children->children->children, &error) != EXIT_SUCCESS) {
if (error != NULL) {
str_err = nc_err_get(error, NC_ERR_PARAM_MSG);
if (str_err != NULL) {
nc_verb_error(str_err);
}
nc_err_free(error);
}
xmlFreeDoc(doc);
return EXIT_FAILURE;
}
if (callback_n_netopeer_n_ssh_n_password_auth_enabled(NULL, XMLDIFF_ADD, NULL, doc->children->children->children->next, &error) != EXIT_SUCCESS) {
if (error != NULL) {
str_err = nc_err_get(error, NC_ERR_PARAM_MSG);
if (str_err != NULL) {
nc_verb_error(str_err);
}
nc_err_free(error);
}
xmlFreeDoc(doc);
return EXIT_FAILURE;
}
if (callback_n_netopeer_n_ssh_n_auth_attempts(NULL, XMLDIFF_ADD, NULL, doc->children->children->children->next->next, &error) != EXIT_SUCCESS) {
if (error != NULL) {
str_err = nc_err_get(error, NC_ERR_PARAM_MSG);
if (str_err != NULL) {
nc_verb_error(str_err);
}
nc_err_free(error);
}
xmlFreeDoc(doc);
return EXIT_FAILURE;
}
if (callback_n_netopeer_n_ssh_n_auth_timeout(NULL, XMLDIFF_ADD, NULL, doc->children->children->children->next->next->next, &error) != EXIT_SUCCESS) {
if (error != NULL) {
str_err = nc_err_get(error, NC_ERR_PARAM_MSG);
if (str_err != NULL) {
nc_verb_error(str_err);
}
nc_err_free(error);
}
xmlFreeDoc(doc);
return EXIT_FAILURE;
}
xmlFreeDoc(doc);
return EXIT_SUCCESS;
}
void listen_loop(int do_init) {
struct client_struct* new_client;
struct np_sock npsock = {.count = 0};
int ret;
struct timespec ts;
#ifdef NP_SSH
ssh_bind sshbind = NULL;
#endif
#ifdef NP_TLS
SSL_CTX* tlsctx = NULL;
#endif
/* Init */
if (do_init) {
#ifdef NP_SSH
np_ssh_init();
#endif
#ifdef NP_TLS
np_tls_init();
#endif
if ((ret = pthread_create(&netopeer_state.data_tid, NULL, data_thread, NULL)) != 0) {
nc_verb_error("%s: failed to create a thread (%s)", __func__, strerror(ret));
return;
}
if ((ret = pthread_create(&netopeer_state.netconf_rpc_tid, NULL, netconf_rpc_thread, NULL)) != 0) {
nc_verb_error("%s: failed to create a thread (%s)", __func__, strerror(ret));
return;
}
}
/* Main accept loop */
do {
new_client = NULL;
/* Binds change check */
if (netopeer_options.binds_change_flag) {
/* BINDS LOCK */
pthread_mutex_lock(&netopeer_options.binds_lock);
sock_cleanup(&npsock);
sock_listen(netopeer_options.binds, &npsock);
netopeer_options.binds_change_flag = 0;
/* BINDS UNLOCK */
pthread_mutex_unlock(&netopeer_options.binds_lock);
if (npsock.count == 0) {
nc_verb_warning("Server is not listening on any address!");
}
}
#ifdef NP_SSH
sshbind = np_ssh_server_id_check(sshbind);
#endif
#ifdef NP_TLS
tlsctx = np_tls_server_id_check(tlsctx);
#endif
#ifndef DISABLE_CALLHOME
/* Callhome client check */
if (callhome_client != NULL) {
/* CALLHOME LOCK */
pthread_mutex_lock(&callhome_lock);
new_client = callhome_client;
callhome_client = NULL;
/* CALLHOME UNLOCK */
pthread_mutex_unlock(&callhome_lock);
}
#endif
/* Listen client check */
if (new_client == NULL) {
new_client = sock_accept(&npsock);
}
/* New client full structure creation */
if (new_client != NULL) {
/* Maximum number of sessions check */
if (netopeer_options.max_sessions > 0) {
ret = 0;
#ifdef NP_SSH
ret += np_ssh_session_count();
#endif
#ifdef NP_TLS
ret += np_tls_session_count();
#endif
if (ret >= netopeer_options.max_sessions) {
nc_verb_error("Maximum number of sessions reached, droppping the new client.");
new_client->to_free = 1;
switch (new_client->transport) {
#ifdef NP_SSH
case NC_TRANSPORT_SSH:
client_free_ssh((struct client_struct_ssh*)new_client);
break;
#endif
#ifdef NP_TLS
case NC_TRANSPORT_TLS:
client_free_tls((struct client_struct_tls*)new_client);
break;
#endif
default:
nc_verb_error("%s: internal error (%s:%d)", __func__, __FILE__, __LINE__);
}
free(new_client);
/* sleep to prevent clients from immediate connection retry */
usleep(netopeer_options.response_time*1000);
continue;
}
}
switch (new_client->transport) {
#ifdef NP_SSH
case NC_TRANSPORT_SSH:
ret = np_ssh_create_client((struct client_struct_ssh*)new_client, sshbind);
if (ret != 0) {
new_client->to_free = 1;
client_free_ssh((struct client_struct_ssh*)new_client);
}
break;
#endif
#ifdef NP_TLS
case NC_TRANSPORT_TLS:
ret = np_tls_create_client((struct client_struct_tls*)new_client, tlsctx);
if (ret != 0) {
new_client->to_free = 1;
client_free_tls((struct client_struct_tls*)new_client);
}
break;
#endif
default:
nc_verb_error("Client with an unknown transport protocol, dropping it.");
new_client->to_free = 1;
ret = 1;
}
/* client is not valid, some error occured */
if (ret != 0) {
free(new_client);
continue;
}
/* add the client into the global clients structure */
/* GLOBAL WRITE LOCK */
pthread_rwlock_wrlock(&netopeer_state.global_lock);
client_append(&netopeer_state.clients, new_client);
/* GLOBAL WRITE UNLOCK */
pthread_rwlock_unlock(&netopeer_state.global_lock);
}
} while (!quit && !restart_soft);
/* Cleanup */
sock_cleanup(&npsock);
#ifdef NP_SSH
ssh_bind_free(sshbind);
#endif
#ifdef NP_TLS
SSL_CTX_free(tlsctx);
#endif
if (!restart_soft) {
if (clock_gettime(CLOCK_REALTIME, &ts) == -1) {
nc_verb_warning("%s: failed to get time (%s)", strerror(errno));
}
ts.tv_sec += THREAD_JOIN_QUIT_TIMEOUT;
/* wait for all the clients to exit nicely themselves */
if ((ret = pthread_timedjoin_np(netopeer_state.netconf_rpc_tid, NULL, &ts)) != 0) {
nc_verb_warning("%s: failed to join the netconf RPC thread (%s)", __func__, strerror(ret));
if (ret == ETIMEDOUT) {
pthread_cancel(netopeer_state.netconf_rpc_tid);
}
}
if ((ret = pthread_timedjoin_np(netopeer_state.data_tid, NULL, &ts)) != 0) {
nc_verb_warning("%s: failed to join the SSH data thread (%s)", __func__, strerror(ret));
if (ret == ETIMEDOUT) {
pthread_cancel(netopeer_state.data_tid);
}
}
#ifdef NP_SSH
np_ssh_cleanup();
#endif
#ifdef NP_TLS
np_tls_cleanup();
#endif
}
}
int main(int argc, char** argv) {
struct sigaction action;
sigset_t block_mask;
char *aux_string = NULL, path[PATH_MAX];
int next_option;
int daemonize = 0, len;
int listen_init = 1;
struct np_module* netopeer_module = NULL, *server_module = NULL;
/* initialize message system and set verbose and debug variables */
if ((aux_string = getenv(ENVIRONMENT_VERBOSE)) == NULL) {
netopeer_options.verbose = NC_VERB_ERROR;
} else {
netopeer_options.verbose = atoi(aux_string);
}
aux_string = NULL; /* for sure to avoid unwanted changes in environment */
/* parse given options */
while ((next_option = getopt(argc, argv, OPTSTRING)) != -1) {
switch (next_option) {
case 'd':
daemonize = 1;
break;
case 'h':
print_usage(argv[0]);
break;
case 'v':
netopeer_options.verbose = atoi(optarg);
break;
case 'V':
print_version(argv[0]);
break;
default:
print_usage(argv[0]);
break;
}
}
/* set signal handler */
sigfillset (&block_mask);
action.sa_handler = signal_handler;
action.sa_mask = block_mask;
action.sa_flags = 0;
sigaction(SIGINT, &action, NULL);
sigaction(SIGQUIT, &action, NULL);
sigaction(SIGABRT, &action, NULL);
sigaction(SIGTERM, &action, NULL);
sigaction(SIGHUP, &action, NULL);
nc_callback_print(clb_print);
/* normalize value if not from the enum */
if (netopeer_options.verbose > NC_VERB_DEBUG) {
netopeer_options.verbose = NC_VERB_DEBUG;
}
nc_verbosity(netopeer_options.verbose);
/* go to the background as a daemon */
if (daemonize == 1) {
if (daemon(0, 0) != 0) {
nc_verb_error("Going to background failed (%s)", strerror(errno));
return EXIT_FAILURE;
}
openlog("netopeer-server", LOG_PID, LOG_DAEMON);
} else {
openlog("netopeer-server", LOG_PID|LOG_PERROR, LOG_DAEMON);
}
/* make sure we were executed by root */
if (geteuid() != 0) {
nc_verb_error("Failed to start, must have root privileges.");
return EXIT_FAILURE;
}
/*
* this initialize the library and check potential ABI mismatches
* between the version it was compiled for and the actual shared
* library used.
*/
LIBXML_TEST_VERSION
/* initialize library including internal datastores and maybee something more */
if (nc_init(NC_INIT_ALL | NC_INIT_MULTILAYER) < 0) {
nc_verb_error("Library initialization failed.");
return EXIT_FAILURE;
}
server_start = 1;
restart:
/* start NETCONF server module */
if ((server_module = calloc(1, sizeof(struct np_module))) == NULL) {
nc_verb_error("Creating necessary NETCONF server plugin failed!");
return EXIT_FAILURE;
}
server_module->name = strdup(NCSERVER_MODULE_NAME);
if (module_enable(server_module, 0)) {
nc_verb_error("Starting necessary NETCONF server plugin failed!");
free(server_module->name);
free(server_module);
return EXIT_FAILURE;
}
/* start netopeer device module - it will start all modules that are
* in its configuration and in server configuration */
if ((netopeer_module = calloc(1, sizeof(struct np_module))) == NULL) {
nc_verb_error("Creating necessary Netopeer plugin failed!");
module_disable(server_module, 1);
return EXIT_FAILURE;
}
netopeer_module->name = strdup(NETOPEER_MODULE_NAME);
if (module_enable(netopeer_module, 0)) {
nc_verb_error("Starting necessary Netopeer plugin failed!");
module_disable(server_module, 1);
free(netopeer_module->name);
free(netopeer_module);
return EXIT_FAILURE;
}
server_start = 0;
nc_verb_verbose("Netopeer server successfully initialized.");
listen_loop(listen_init);
/* unload Netopeer module -> unload all modules */
module_disable(server_module, 1);
module_disable(netopeer_module, 1);
/* main cleanup */
if (!restart_soft) {
/* close libnetconf only when shutting down or hard restarting the server */
nc_close();
}
if (restart_soft) {
nc_verb_verbose("Server is going to soft restart.");
restart_soft = 0;
listen_init = 0;
goto restart;
} else if (restart_hard) {
nc_verb_verbose("Server is going to hard restart.");
len = readlink("/proc/self/exe", path, PATH_MAX);
path[len] = 0;
xmlCleanupParser();
execv(path, argv);
}
/*
*Free the global variables that may
*have been allocated by the parser.
*/
xmlCleanupParser();
return EXIT_SUCCESS;
}
int main (int argc, char** argv)
{
conn_t* conn = NULL;
struct sigaction action;
sigset_t block_mask;
char *aux_string = NULL, path[PATH_MAX];
int next_option, ret;
int daemonize = 0, len;
int verbose = 0;
struct module * netopeer_module = NULL, *server_module = NULL;
/* initialize message system and set verbose and debug variables */
if ((aux_string = getenv (ENVIRONMENT_VERBOSE)) == NULL) {
verbose = NC_VERB_ERROR;
} else {
verbose = atoi (aux_string);
}
aux_string = NULL; /* for sure to avoid unwanted changes in environment */
/* parse given options */
while ((next_option = getopt (argc, argv, OPTSTRING)) != -1) {
switch (next_option) {
case 'd':
daemonize = 1;
break;
case 'h':
print_usage (argv[0]);
break;
case 'v':
verbose = atoi (optarg);
break;
case 'V':
print_version (argv[0]);
break;
default:
print_usage (argv[0]);
break;
}
}
/* set signal handler */
sigfillset (&block_mask);
action.sa_handler = signal_handler;
action.sa_mask = block_mask;
action.sa_flags = 0;
sigaction (SIGINT, &action, NULL);
sigaction (SIGQUIT, &action, NULL);
sigaction (SIGABRT, &action, NULL);
sigaction (SIGTERM, &action, NULL);
sigaction (SIGKILL, &action, NULL);
sigaction (SIGHUP, &action, NULL);
nc_callback_print (clb_print);
/* normalize value if not from the enum */
if (verbose < NC_VERB_ERROR) {
nc_verbosity (NC_VERB_ERROR);
} else if (verbose > NC_VERB_DEBUG) {
nc_verbosity (NC_VERB_DEBUG);
} else {
nc_verbosity (verbose);
}
/* go to the background as a daemon */
if (daemonize == 1) {
if (daemon(0, 0) != 0) {
nc_verb_error("Going to background failed (%s)", strerror(errno));
return (EXIT_FAILURE);
}
openlog("netopeer-server", LOG_PID, LOG_DAEMON);
} else {
openlog("netopeer-server", LOG_PID|LOG_PERROR, LOG_DAEMON);
}
/* make sure we were executed by root */
if (geteuid() != 0) {
nc_verb_error("Failed to start, must have root privileges.");
return (EXIT_FAILURE);
}
/*
* this initialize the library and check potential ABI mismatches
* between the version it was compiled for and the actual shared
* library used.
*/
LIBXML_TEST_VERSION
/* initialize library including internal datastores and maybee something more */
if ((ret = nc_init (NC_INIT_ALL | NC_INIT_MULTILAYER)) < 0) {
nc_verb_error("Library initialization failed.");
return (EXIT_FAILURE);
}
/* Initiate communication subsystem for communicate with agents */
conn = comm_init(ret & NC_INITRET_RECOVERY);
if (conn == NULL) {
nc_verb_error("Communication subsystem not initiated.");
return (EXIT_FAILURE);
}
server_start = 1;
restart:
/* start NETCONF server module */
if ((server_module = calloc(1, sizeof(struct module))) == NULL) {
nc_verb_error("Creating necessary NETCONF server plugin failed!");
comm_destroy(conn);
return(EXIT_FAILURE);
}
server_module->name = strdup(NCSERVER_MODULE_NAME);
if (module_enable(server_module, 0)) {
nc_verb_error("Starting necessary NETCONF server plugin failed!");
free(server_module->name);
free(server_module);
comm_destroy(conn);
return EXIT_FAILURE;
}
/* start netopeer device module - it will start all modules that are
* in its configuration and in server configuration */
if ((netopeer_module = calloc(1, sizeof(struct module))) == NULL) {
nc_verb_error("Creating necessary Netopeer plugin failed!");
module_disable(server_module, 1);
comm_destroy(conn);
return(EXIT_FAILURE);
}
netopeer_module->name = strdup(NETOPEER_MODULE_NAME);
if (module_enable(netopeer_module, 0)) {
nc_verb_error("Starting necessary Netopeer plugin failed!");
module_disable(server_module, 1);
free(netopeer_module->name);
free(netopeer_module);
comm_destroy(conn);
return EXIT_FAILURE;
}
server_start = 0;
nc_verb_verbose("Netopeer server successfully initialized.");
while (!done) {
comm_loop(conn, 500);
}
/* unload Netopeer module -> unload all modules */
module_disable(server_module, 1);
module_disable(netopeer_module, 1);
/* main cleanup */
if (!restart_soft) {
/* close connection and destroy all sessions only when shutting down or hard restarting the server */
comm_destroy(conn);
server_sessions_destroy_all ();
nc_close ();
}
/*
*Free the global variables that may
*have been allocated by the parser.
*/
xmlCleanupParser ();
if (restart_soft) {
nc_verb_verbose("Server is going to soft restart.");
restart_soft = 0;
done = 0;
goto restart;
} else if (restart_hard) {
nc_verb_verbose("Server is going to hard restart.");
len = readlink("/proc/self/exe", path, PATH_MAX);
path[len] = 0;
execv(path, argv);
}
return (EXIT_SUCCESS);
}
/* !DO NOT ALTER FUNCTION SIGNATURE! */
int callback_ofc_capable_switch_ofc_logical_switches_ofc_switch (void ** data, XMLDIFF_OP op, xmlNodePtr node, struct nc_err** error)
{
nc_verb_verbose("%s: data=%p, op=%d\n", __PRETTY_FUNCTION__, data, op);
print_element_names(node, 0);
if (NULL == ofc_state.lsi_list) {
ofc_state.lsi_list = list_new();
assert(ofc_state.lsi_list);
}
assert(data);
assert(*data);
if (!(XMLDIFF_REM & op)) {
list_append_data(ofc_state.lsi_list, *data);
}
int rv = EXIT_SUCCESS;
if (XMLDIFF_ADD & op) {
assert(XMLDIFF_CHAIN & op);
nc_verb_verbose("create new lsi (dpid=%lu, name=%s)\n", LSI(data)->dpid, LSI(data)->dpname);
if (lsi_create(ofc_state.xmp_client_handle, *data)) {
rv = EXIT_FAILURE;
}
} else if (XMLDIFF_REM& op) {
assert(XMLDIFF_CHAIN & op);
nc_verb_verbose("destroy lsi (dpid=%lu, name=%s)\n", LSI(data)->dpid, LSI(data)->dpname);
if ( lsi_destroy(ofc_state.xmp_client_handle, LSI(data)->dpid) ) {
rv = EXIT_FAILURE;
}
// cannot have a port add during a lsi destroy
assert(NULL == LSI(data)->res.port_list_add);
// check if there were ports attached, then clean the list, because detachment takes place during lsi destruction
if (NULL != LSI(data)->res.port_list_del) {
struct port *p;
while ((p = list_pop_head(LSI(data)->res.port_list_del))) {
xmlFree(p->resource_id);
free(p);
}
}
// no need to deal with controllers seperately here
lsi_cleanup(*data);
} else if (XMLDIFF_MOD & op) {
// direct sub elements changed
nc_verb_error("not implemented XMLDIFF_MOD");
assert(0);
} else if (XMLDIFF_CHAIN & op) {
// resources or controllers changed (attachment of ports handled in parent)
nc_verb_verbose("XMLDIFF_CHAIN\n");
// check dpid
if (0 == LSI(data)->dpid) {
xmlNodePtr tmp = find_element(BAD_CAST "datapath-id", node->children);
assert(tmp);
uint64_t dpid = parse_dpid(tmp->children->content);
if (LSI(data)->dpid != dpid) {
LSI(data)->dpid = dpid;
}
}
if (LSI(data)->controller_list_add) {
lsi_connect_to_controller(ofc_state.xmp_client_handle, LSI(data));
}
if (LSI(data)->controller_list_del) {
// fixme implement
// assert(0);
}
} else {
nc_verb_error("unsupported op");
assert(0);
}
*data = NULL;
return rv;
}
