/* rpc parameter is freed after the function call */
static int op_send_recv(ncSessionObject *self, nc_rpc* rpc, char **data)
{
nc_reply *reply = NULL;
int ret = EXIT_SUCCESS;
/* send the request and get the reply */
switch (nc_session_send_recv(self->session, rpc, &reply)) {
case NC_MSG_UNKNOWN:
if (nc_session_get_status(self->session) != NC_SESSION_STATUS_WORKING) {
PyErr_SetString(libnetconfError, "Session damaged, closing.");
/* free the Session */
nc_session_free(self->session);
self->session = NULL;
}
ret = EXIT_FAILURE;
break;
case NC_MSG_NONE:
/* error occurred, but processed by callback */
break;
case NC_MSG_REPLY:
switch (nc_reply_get_type(reply)) {
case NC_REPLY_OK:
break;
case NC_REPLY_DATA:
if (data) {
*data = nc_reply_get_data (reply);
}
break;
case NC_REPLY_ERROR:
ret = EXIT_FAILURE;
break;
default:
PyErr_SetString(libnetconfError, "Unexpected operation result.");
ret = EXIT_FAILURE;
break;
}
break;
default:
PyErr_SetString(libnetconfError, "Unknown error occurred.");
ret = EXIT_FAILURE;
break;
}
nc_rpc_free(rpc);
nc_reply_free(reply);
return (ret);
}
static void
test_send_recv_error(void)
{
int ret;
uint64_t msgid;
NC_MSG_TYPE msgtype;
struct nc_rpc *rpc;
struct nc_reply *reply;
struct nc_pollsession *ps;
/* client RPC */
rpc = nc_rpc_kill(1);
assert_non_null(rpc);
msgtype = nc_send_rpc(client_session, rpc, 0, &msgid);
assert_int_equal(msgtype, NC_MSG_RPC);
/* server RPC, send reply */
ps = nc_ps_new();
assert_non_null(ps);
nc_ps_add_session(ps, server_session);
ret = nc_ps_poll(ps, 0);
assert_int_equal(ret, 1);
/* server finished */
nc_ps_free(ps);
/* client reply */
msgtype = nc_recv_reply(client_session, rpc, msgid, 0, &reply);
assert_int_equal(msgtype, NC_MSG_REPLY);
nc_rpc_free(rpc);
assert_int_equal(reply->type, NC_RPL_ERROR);
assert_string_equal(((struct nc_reply_error *)reply)->err->tag, "operation-not-supported");
nc_reply_free(reply);
}
static void
test_send_recv_data(void)
{
int ret;
uint64_t msgid;
NC_MSG_TYPE msgtype;
struct nc_rpc *rpc;
struct nc_reply *reply;
struct nc_pollsession *ps;
/* client RPC */
rpc = nc_rpc_getconfig(NC_DATASTORE_RUNNING, NULL, 0, 0);
assert_non_null(rpc);
msgtype = nc_send_rpc(client_session, rpc, 0, &msgid);
assert_int_equal(msgtype, NC_MSG_RPC);
/* server RPC, send reply */
ps = nc_ps_new();
assert_non_null(ps);
nc_ps_add_session(ps, server_session);
ret = nc_ps_poll(ps, 0);
assert_int_equal(ret, 1);
/* server finished */
nc_ps_free(ps);
/* client reply */
msgtype = nc_recv_reply(client_session, rpc, msgid, 0, &reply);
assert_int_equal(msgtype, NC_MSG_REPLY);
nc_rpc_free(rpc);
assert_int_equal(reply->type, NC_RPL_DATA);
nc_reply_free(reply);
}
static PyObject *ncProcessRPC(ncSessionObject *self)
{
NC_MSG_TYPE ret;
NC_RPC_TYPE req_type;
NC_OP req_op;
nc_rpc *rpc = NULL;
nc_reply *reply = NULL;
struct nc_err* e = NULL;
SESSION_CHECK(self);
/* receive incoming message */
ret = nc_session_recv_rpc(self->session, -1, &rpc);
if (ret != NC_MSG_RPC) {
if (nc_session_get_status(self->session) != NC_SESSION_STATUS_WORKING) {
/* something really bad happend, and communication is not possible anymore */
nc_session_free(self->session);
self->session = NULL;
}
Py_RETURN_NONE;
}
/* process it */
req_type = nc_rpc_get_type(rpc);
req_op = nc_rpc_get_op(rpc);
if (req_type == NC_RPC_SESSION) {
/* process operations affectinf session */
switch(req_op) {
case NC_OP_CLOSESESSION:
/* exit the event loop immediately without processing any following request */
reply = nc_reply_ok();
break;
case NC_OP_KILLSESSION:
/* todo: kill the requested session */
reply = nc_reply_error(nc_err_new(NC_ERR_OP_NOT_SUPPORTED));
break;
default:
reply = nc_reply_error(nc_err_new(NC_ERR_OP_NOT_SUPPORTED));
break;
}
} else if (req_type == NC_RPC_DATASTORE_READ) {
/* process operations reading datastore */
switch (req_op) {
case NC_OP_GET:
case NC_OP_GETCONFIG:
reply = ncds_apply_rpc2all(self->session, rpc, NULL);
break;
default:
reply = nc_reply_error(nc_err_new(NC_ERR_OP_NOT_SUPPORTED));
break;
}
} else if (req_type == NC_RPC_DATASTORE_WRITE) {
/* process operations affecting datastore */
switch (req_op) {
case NC_OP_LOCK:
case NC_OP_UNLOCK:
case NC_OP_COPYCONFIG:
case NC_OP_DELETECONFIG:
case NC_OP_EDITCONFIG:
reply = ncds_apply_rpc2all(self->session, rpc, NULL);
break;
default:
reply = nc_reply_error(nc_err_new(NC_ERR_OP_NOT_SUPPORTED));
break;
}
} else {
/* process other operations */
reply = ncds_apply_rpc2all(self->session, rpc, NULL);
}
/* create reply */
if (reply == NULL) {
reply = nc_reply_error(nc_err_new(NC_ERR_OP_FAILED));
} else if (reply == NCDS_RPC_NOT_APPLICABLE) {
e = nc_err_new(NC_ERR_OP_FAILED);
nc_err_set(e, NC_ERR_PARAM_MSG, "Requested operation cannot be performed on the managed datastore.");
reply = nc_reply_error(e);
}
/* and send the reply to the client */
nc_session_send_reply(self->session, rpc, reply);
nc_rpc_free(rpc);
nc_reply_free(reply);
if (req_op == NC_OP_CLOSESESSION) {
/* free the Session */
nc_session_free(self->session);
self->session = NULL;
}
Py_RETURN_NONE;
}
int main(int argc, char** argv)
{
struct nc_session* dummy_session;
struct nc_cpblts* capabs;
struct ncds_ds* ds;
nc_rpc* rpc;
nc_reply* reply;
char* new_startup_config;
xmlDocPtr startup_doc = NULL;
int ret = 0, i, j;
if (argc < 2 || argv[1][0] == '-') {
help(argv[0]);
return 1;
}
/* set message printing callback */
nc_callback_print(my_print);
/* init libnetconf for messages from transAPI function */
if (nc_init(NC_INIT_ALL | NC_INIT_MULTILAYER) == -1) {
my_print(NC_VERB_ERROR, "Could not initialize libnetconf.");
return 1;
}
/* register the datastore */
if ((ds = ncds_new(NCDS_TYPE_FILE, "./model/ietf-interfaces.yin", NULL)) == NULL) {
nc_close();
return 1;
}
/* add imports and augments */
if (ncds_add_model("./model/ietf-yang-types.yin") != 0 || ncds_add_model("./model/ietf-inet-types.yin") != 0 ||
ncds_add_model("./model/ietf-ip.yin") != 0) {
nc_verb_error("Could not add import and augment models.");
nc_close();
return 1;
}
/* enable features */
for (i = 2; i < argc; ++i) {
if (strcmp(argv[i], "ipv4-non-contiguous-netmasks") == 0 || strcmp(argv[i], "ipv6-privacy-autoconf") == 0) {
j = ncds_feature_enable("ietf-ip", argv[i]);
} else {
j = ncds_feature_enable("ietf-interfaces", argv[i]);
}
if (j != 0) {
nc_verb_error("Could not enable feature \"%s\".", argv[i]);
nc_close();
return 1;
}
}
/* set the path to the target file */
if (ncds_file_set_path(ds, argv[1]) != 0) {
nc_verb_error("Could not set \"%s\" to the datastore.", argv[1]);
nc_close();
return 1;
}
if (ncds_init(ds) < 0) {
nc_verb_error("Failed to nitialize datastore.");
nc_close();
return 1;
}
if (ncds_consolidate() != 0) {
nc_verb_error("Could not consolidate the datastore.");
nc_close();
return 1;
}
if (transapi_init(&startup_doc) != EXIT_SUCCESS) {
nc_close();
return 1;
}
if (startup_doc == NULL || startup_doc->children == NULL) {
/* nothing to do */
nc_close();
return 0;
}
/* create the dummy session */
capabs = nc_cpblts_new(capabilities);
if ((dummy_session = nc_session_dummy("session0", "root", NULL, capabs)) == NULL) {
nc_verb_error("Could not create a dummy session.");
nc_close();
return 1;
}
/* dump the new config */
xmlDocDumpMemory(startup_doc, (xmlChar**)&new_startup_config, NULL);
xmlFreeDoc(startup_doc);
/* apply edit-config rpc on the datastore */
if ((rpc = nc_rpc_editconfig(NC_DATASTORE_STARTUP, NC_DATASTORE_CONFIG, 0, 0, 0, new_startup_config)) == NULL) {
nc_verb_error("Could not create edit-config RPC.");
nc_close();
return 1;
}
free(new_startup_config);
reply = ncds_apply_rpc2all(dummy_session, rpc, NULL);
if (nc_reply_get_type(reply) != NC_REPLY_OK) {
nc_verb_error("Edit-config RPC failed.");
nc_close();
return 1;
}
nc_reply_free(reply);
nc_rpc_free(rpc);
nc_cpblts_free(capabs);
nc_session_free(dummy_session);
nc_close();
return ret;
}
