/********************************************************************
* FUNCTION rpc_new_msg
*
* Malloc and initialize a new rpc_msg_t struct
*
* INPUTS:
* none
* RETURNS:
* pointer to struct or NULL or memory error
*********************************************************************/
rpc_msg_t *
rpc_new_msg (void)
{
rpc_msg_t *msg;
msg = m__getObj(rpc_msg_t);
if (!msg) {
return NULL;
}
memset(msg, 0x0, sizeof(rpc_msg_t));
xml_msg_init_hdr(&msg->mhdr);
dlq_createSQue(&msg->rpc_dataQ);
msg->rpc_input = val_new_value();
if (!msg->rpc_input) {
rpc_free_msg(msg);
return NULL;
}
msg->rpc_top_editop = OP_EDITOP_MERGE;
return msg;
} /* rpc_new_msg */
/********************************************************************
* FUNCTION mgr_rpc_new_request
*
* Malloc and initialize a new mgr_rpc_req_t struct
*
* INPUTS:
* scb == session control block
*
* RETURNS:
* pointer to struct or NULL or memory error
*********************************************************************/
mgr_rpc_req_t *
mgr_rpc_new_request (ses_cb_t *scb)
{
mgr_scb_t *mscb;
mgr_rpc_req_t *req;
char numbuff[NCX_MAX_NUMLEN];
req = m__getObj(mgr_rpc_req_t);
if (!req) {
return NULL;
}
memset(req, 0x0, sizeof(mgr_rpc_req_t));
mscb = mgr_ses_get_mscb(scb);
sprintf(numbuff, "%u", mscb->next_id);
if (mscb->next_id >= MGR_MAX_REQUEST_ID) {
mscb->next_id = 0;
} else {
mscb->next_id++;
}
req->msg_id = xml_strdup((const xmlChar *)numbuff);
if (req->msg_id) {
xml_msg_init_hdr(&req->mhdr);
xml_init_attrs(&req->attrs);
} else {
m__free(req);
req = NULL;
}
return req;
} /* mgr_rpc_new_request */
/********************************************************************
* FUNCTION mgr_hello_send
*
* Send the manager <hello> message to the server on the
* specified session
*
* INPUTS:
* scb == session control block
*
* RETURNS:
* status
*********************************************************************/
status_t
mgr_hello_send (ses_cb_t *scb)
{
val_value_t *mycaps;
xml_msg_hdr_t msg;
status_t res;
xml_attrs_t attrs;
boolean anyout;
xmlns_id_t nc_id;
#ifdef DEBUG
if (!scb) {
return SET_ERROR(ERR_INTERNAL_PTR);
}
#endif
#ifdef MGR_HELLO_DEBUG
if (LOGDEBUG2) {
log_debug2("\nmgr sending hello on session %d", scb->sid);
}
#endif
res = NO_ERR;
anyout = FALSE;
xml_msg_init_hdr(&msg);
xml_init_attrs(&attrs);
nc_id = xmlns_nc_id();
/* get my client caps, custom made for this session */
mycaps = mgr_cap_get_ses_capsval(scb);
if (!mycaps) {
res = SET_ERROR(ERR_INTERNAL_PTR);
}
/* setup the prefix map with the NETCONF namespace */
if (res == NO_ERR) {
res = xml_msg_build_prefix_map(&msg, &attrs, TRUE, FALSE);
}
/* send the <?xml?> directive */
if (res == NO_ERR) {
res = ses_start_msg(scb);
}
/* start the hello element */
if (res == NO_ERR) {
anyout = TRUE;
xml_wr_begin_elem_ex(scb,
&msg,
0,
nc_id,
NCX_EL_HELLO,
&attrs,
ATTRQ,
0,
START);
}
/* send the capabilities list */
if (res == NO_ERR) {
xml_wr_full_val(scb, &msg, mycaps, NCX_DEF_INDENT);
}
/* finish the hello element */
if (res == NO_ERR) {
xml_wr_end_elem(scb, &msg, nc_id, NCX_EL_HELLO, 0);
}
/* finish the message */
if (anyout) {
ses_finish_msg(scb);
}
xml_clean_attrs(&attrs);
xml_msg_clean_hdr(&msg);
if (mycaps != NULL) {
val_free_value(mycaps);
}
return res;
} /* mgr_hello_send */
/********************************************************************
* FUNCTION mgr_hello_dispatch
*
* Handle an incoming <hello> message from the client
*
* INPUTS:
* scb == session control block
* top == top element descriptor
*********************************************************************/
void
mgr_hello_dispatch (ses_cb_t *scb,
xml_node_t *top)
{
val_value_t *val;
ncx_module_t *mod;
obj_template_t *obj;
mgr_scb_t *mscb;
xml_msg_hdr_t msg;
status_t res;
#ifdef DEBUG
if (!scb || !top) {
SET_ERROR(ERR_INTERNAL_PTR);
return;
}
#endif
#ifdef MGR_HELLO_DEBUG
if (LOGDEBUG) {
log_debug("\nmgr_hello got node");
}
if (LOGDEBUG2) {
xml_dump_node(top);
}
#endif
mscb = mgr_ses_get_mscb(scb);
/* only process this message in hello wait state */
if (scb->state != SES_ST_HELLO_WAIT) {
/* TBD: stats update */
if (LOGINFO) {
log_info("\nmgr_hello dropped, wrong state for session %d",
scb->sid);
}
return;
}
/* init local vars */
res = NO_ERR;
val = NULL;
obj = NULL;
xml_msg_init_hdr(&msg);
/* get a value struct to hold the server hello msg */
val = val_new_value();
if (!val) {
res = ERR_INTERNAL_MEM;
}
/* get the type definition from the registry */
if (res == NO_ERR) {
mod = ncx_find_module(NC_MODULE, NULL);
if (mod) {
obj = ncx_find_object(mod, MGR_SERVER_HELLO_OBJ);
}
if (!obj) {
/* netconf module should have loaded this definition */
res = SET_ERROR(ERR_INTERNAL_PTR);
}
}
/* parse an server hello message */
if (res == NO_ERR) {
res = mgr_val_parse(scb, obj, top, val);
}
/* examine the server capability list
* and it matches the server protocol version
*/
if (res == NO_ERR) {
res = process_server_hello(scb, val);
}
/* report first error and close session */
if (res != NO_ERR) {
if (LOGINFO) {
log_info("\nmgr_connect error (%s)\n dropping session %u (a:%u)",
get_error_string(res),
scb->sid,
mscb->agtsid,
res);
}
} else {
scb->state = SES_ST_IDLE;
if (LOGDEBUG) {
log_debug("\nmgr_hello manager hello ok");
}
}
if (val) {
val_free_value(val);
}
} /* mgr_hello_dispatch */
/********************************************************************
* FUNCTION agt_hello_send
*
* Send the server <hello> message to the manager on the
* specified session
*
* INPUTS:
* scb == session control block
*
* RETURNS:
* status
*********************************************************************/
status_t
agt_hello_send (ses_cb_t *scb)
{
assert( scb && "scb is NULL!" );
status_t res = NO_ERR;
boolean anyout = FALSE;
xmlns_id_t nc_id = xmlns_nc_id();
xml_msg_hdr_t msg;
xml_msg_init_hdr(&msg);
xml_attrs_t attrs;
xml_init_attrs(&attrs);
/* start the hello timeout */
(void)time(&scb->hello_time);
/* get the server caps */
val_value_t *mycaps = agt_cap_get_capsval();
if (!mycaps) {
res = SET_ERROR(ERR_INTERNAL_PTR);
}
/* setup the prefix map with the NETCONF and NCX namepsaces */
if (res == NO_ERR) {
res = xml_msg_build_prefix_map(&msg, &attrs, TRUE, FALSE);
}
/* send the <?xml?> directive */
if (res == NO_ERR) {
res = ses_start_msg(scb);
}
boolean mode_started = FALSE;
if (res == NO_ERR) {
ses_start_msg_mode(scb);
mode_started = TRUE;
}
int32 msg_indent = ses_message_indent_count(scb);
/* start the hello element */
if (res == NO_ERR) {
anyout = TRUE;
xml_wr_begin_elem_ex(scb, &msg, 0, nc_id, NCX_EL_HELLO,
&attrs, TRUE, max(msg_indent, 0), FALSE);
}
/* send the capabilities list */
if (res == NO_ERR) {
xml_wr_full_val(scb, &msg, mycaps, msg_indent);
}
/* send the session ID */
if (res == NO_ERR) {
xml_wr_begin_elem(scb, &msg, nc_id, nc_id, NCX_EL_SESSION_ID,
msg_indent);
}
if (res == NO_ERR) {
xmlChar numbuff[NCX_MAX_NUMLEN];
snprintf((char *)numbuff, sizeof(numbuff), "%d", scb->sid);
ses_putstr(scb, numbuff);
}
if (res == NO_ERR) {
xml_wr_end_elem(scb, &msg, nc_id, NCX_EL_SESSION_ID, -1);
}
/* finish the hello element */
if (res == NO_ERR) {
xml_wr_end_elem(scb, &msg, nc_id, NCX_EL_HELLO, max(msg_indent, 0));
}
/* finish the message */
if (anyout) {
ses_finish_msg(scb);
}
if (mode_started) {
ses_stop_msg_mode(scb);
}
xml_clean_attrs(&attrs);
xml_msg_clean_hdr(&msg);
return res;
} /* agt_hello_send */
/********************************************************************
* FUNCTION agt_hello_dispatch
*
* Handle an incoming <hello> message from the client
*
* INPUTS:
* scb == session control block
* top == top element descriptor
*********************************************************************/
void
agt_hello_dispatch (ses_cb_t *scb,
xml_node_t *top)
{
assert( scb && "scb is NULL!" );
assert( top && "top is NULL!" );
if (LOGDEBUG2) {
log_debug2("\nagt_hello: got node");
if (LOGDEBUG3) {
xml_dump_node(top);
}
}
/* only process this message in hello wait state */
if (scb->state != SES_ST_HELLO_WAIT) {
log_info("\nagt_hello dropped, wrong state "
"(%d) for session %d", scb->state, scb->sid);
mytotals->inBadHellos++;
mytotals->droppedSessions++;
agt_ses_request_close(scb, scb->sid, SES_TR_BAD_HELLO);
return;
}
/* init local vars */
status_t res = NO_ERR;
obj_template_t *obj = NULL;
xml_msg_hdr_t msg;
xml_msg_init_hdr(&msg);
/* get a value struct to hold the client hello msg */
val_value_t *val = val_new_value();
if (!val) {
res = ERR_INTERNAL_MEM;
}
/* get the type definition from the registry */
if (res == NO_ERR) {
ncx_module_t *mod = ncx_find_module(NC_MODULE, NULL);
if (mod) {
obj = ncx_find_object(mod, CLIENT_HELLO_CON);
}
if (!obj) {
/* netconf module should have loaded this definition */
res = SET_ERROR(ERR_INTERNAL_PTR);
}
}
/* parse a manager hello message */
if (res == NO_ERR) {
res = agt_val_parse_nc(scb, &msg, obj, top, NCX_DC_STATE, val);
}
/* check that the NETCONF base capability is included
* and it matches the server protocol version
*/
if (res == NO_ERR) {
res = check_manager_hello(scb, val);
}
/* report first error and close session */
if (res != NO_ERR) {
if (LOGINFO) {
log_info("\nagt_connect error (%s), dropping session %d",
get_error_string(res), scb->sid);
}
mytotals->inBadHellos++;
mytotals->droppedSessions++;
agt_ses_request_close(scb, scb->sid, SES_TR_BAD_HELLO);
} else {
scb->state = SES_ST_IDLE;
scb->active = TRUE;
/* start the timer for the first rpc request */
(void)time(&scb->last_rpc_time);
if (LOGDEBUG) {
log_debug("\nSession %d for %s@%s now active",
scb->sid, scb->username, scb->peeraddr);
if (ses_get_protocol(scb) == NCX_PROTO_NETCONF11) {
log_debug_append(" (base:1.1)");
} else {
log_debug_append(" (base:1.0)");
}
}
}
if (val) {
val_free_value(val);
}
} /* agt_hello_dispatch */
/********************************************************************
* FUNCTION mgr_rpc_send_request
*
* Send an <rpc> request to the agent on the specified session
* non-blocking send, reply function will be called when
* one is received or a timeout occurs
*
* INPUTS:
* scb == session control block
* req == request to send
* rpyfn == reply callback function
*
* RETURNS:
* status
*********************************************************************/
status_t
mgr_rpc_send_request (ses_cb_t *scb,
mgr_rpc_req_t *req,
mgr_rpc_cbfn_t rpyfn)
{
xml_msg_hdr_t msg;
xml_attr_t *attr;
status_t res;
boolean anyout;
xmlns_id_t nc_id;
#ifdef DEBUG
if (!scb || !req || !rpyfn) {
return SET_ERROR(ERR_INTERNAL_PTR);
}
#endif
#ifdef MGR_HELLO_DEBUG
log_debug2("\nmgr sending RPC request %s on session %d",
req->msg_id, scb->sid);
#endif
anyout = FALSE;
xml_msg_init_hdr(&msg);
nc_id = xmlns_nc_id();
/* make sure the message-id attribute is not already present */
attr = xml_find_attr_q(&req->attrs, 0, NCX_EL_MESSAGE_ID);
if (attr) {
dlq_remove(attr);
xml_free_attr(attr);
}
/* setup the prefix map with the NETCONF (and maybe NCX) namespace */
res = xml_msg_build_prefix_map(&msg,
&req->attrs,
FALSE,
(req->data->nsid == xmlns_ncx_id()));
/* add the message-id attribute */
if (res == NO_ERR) {
res = xml_add_attr(&req->attrs,
0,
NCX_EL_MESSAGE_ID,
req->msg_id);
}
/* set perf timestamp in case response timing active */
gettimeofday(&req->perfstarttime, NULL);
/* send the <?xml?> directive */
if (res == NO_ERR) {
res = ses_start_msg(scb);
}
/* start the <rpc> element */
if (res == NO_ERR) {
anyout = TRUE;
xml_wr_begin_elem_ex(scb,
&msg,
0,
nc_id,
NCX_EL_RPC,
&req->attrs,
ATTRQ,
0,
START);
}
/* send the method and parameters */
if (res == NO_ERR) {
xml_wr_full_val(scb, &msg, req->data, NCX_DEF_INDENT);
}
/* finish the <rpc> element */
if (res == NO_ERR) {
xml_wr_end_elem(scb, &msg, nc_id, NCX_EL_RPC, 0);
}
/* finish the message */
if (anyout) {
ses_finish_msg(scb);
}
if (res == NO_ERR) {
req->replycb = rpyfn;
add_request(scb, req);
}
xml_msg_clean_hdr(&msg);
return res;
} /* mgr_rpc_send_request */