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pf_cmrpc.c
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/*********************************************************************
* _ _ _
* _ __ | |_ _ | | __ _ | |__ ___
* | '__|| __|(_)| | / _` || '_ \ / __|
* | | | |_ _ | || (_| || |_) |\__ \
* |_| \__|(_)|_| \__,_||_.__/ |___/
*
* www.rt-labs.com
* Copyright 2018 rt-labs AB, Sweden.
*
* This software is dual-licensed under GPLv3 and a commercial
* license. See the file LICENSE.md distributed with this software for
* full license information.
********************************************************************/
/**
* @file
* @brief Implements the Context Management RPC Device Protocol Machine (CMRPC)
*
* This handles RPC communication via UDP; for example connect, release,
* dcontrol, ccontrol and parameter read and write.
*
* Is responsible for reruns (retransmissions).
*
* It opens a UDP socket and listens for connections.
*
* CMRPC has only one state - IDLE. I.e., it is state-less.
*
* An AR is created on each connect.
* The ar:s are allocated from the array net->cmrpc_ar
* ToDo: Move to CMDEV device structure.
*
* Sessions are used for sending notifications to the controller, when a
* response is expected.
* Each session uses one entry in net->cmrpc_session_info
*
* The socket net->cmrpc_rpcreq_socket is used for RPC requests (connects etc)
*
*/
#ifdef UNIT_TEST
#define os_get_current_time_us mock_os_get_current_time_us
#define pf_generate_uuid mock_pf_generate_uuid
#endif
#include "pf_includes.h"
#include "pf_cmrpc_epm.h"
#include "pf_block_reader.h"
#include "pf_block_writer.h"
#include <ctype.h>
#include <inttypes.h>
#include <stdint.h>
#include <string.h>
static const char * rpc_sync_name = "rpc";
static const pf_uuid_t implicit_ar = {0, 0, 0, {0, 0, 0, 0, 0, 0, 0, 0}};
static const pf_uuid_t uuid_epmap_interface = {
0xE1AF8308,
0x5D1F,
0x11C9,
{0x91, 0xA4, 0x08, 0x00, 0x2B, 0x14, 0xA0, 0xFA}};
static const pf_uuid_t uuid_io_device_interface = {
0xDEA00001,
0x6C97,
0x11D1,
{0x82, 0x71, 0x00, 0xA0, 0x24, 0x42, 0xDF, 0x7D}};
/**************** Diagnostic strings *****************************************/
void pf_memory_contents_show (const uint8_t * data, int size)
{
int i, j, pos, n, remain;
uint8_t c;
char s[80];
/* Note: a line is 67 characters or shorter */
for (i = 0; i < size; i += 16)
{
pos = 0;
remain = sizeof (s);
/* Print hex values */
for (j = 0; j < 16 && (i + j) < size; j++)
{
n = snprintf (&s[pos], remain, "%02x ", data[i + j]);
if (n >= remain)
return;
pos += n;
remain -= n;
}
/* Fill up short line */
for (; j < 16; j++)
{
n = snprintf (&s[pos], remain, " ");
if (n >= remain)
return;
pos += n;
remain -= n;
}
n = snprintf (&s[pos], remain, "|");
if (n >= remain)
return;
pos += n;
remain -= n;
/* Print ASCII values */
for (j = 0; j < 16 && (i + j) < size; j++)
{
c = data[i + j];
c = (isprint (c)) ? c : '.';
n = snprintf (&s[pos], remain, "%c", c);
if (n >= remain)
return;
pos += n;
remain -= n;
}
n = snprintf (&s[pos], remain, "|\n");
if (n >= remain)
return;
printf ("%s", s);
}
}
/**
* @internal
* Return a string representation of the AR state.
* @param state In: The AR state.
* @return A string representing the AR state.
*/
static const char * pf_ar_state_to_string (pf_ar_state_values_t state)
{
const char * s = "<unknown>";
switch (state)
{
case PF_AR_STATE_PRIMARY:
s = "PF_AR_STATE_PRIMARY";
break;
case PF_AR_STATE_FIRST:
s = "PF_AR_STATE_FIRST";
break;
case PF_AR_STATE_BACKUP:
s = "PF_AR_STATE_BACKUP";
break;
}
return s;
}
/**
* @internal
* Return a string representation of the AR sync state.
* @param state In: The AR sync state.
* @return A string representing the AR sync state.
*/
static const char * pf_ar_sync_state_to_string (pf_sync_state_values_t state)
{
const char * s = "<unknown>";
switch (state)
{
case PF_SYNC_STATE_SYNCHRONIZED:
s = "PF_SYNC_STATE_SYNCHRONIZED";
break;
case PF_SYNC_STATE_NOT_AVAILABLE:
s = "PF_SYNC_STATE_NOT_AVAILABLE";
break;
}
return s;
}
/**
* @internal
* Return a string representation of an IOCR type.
* @param type In: The IOCR type.
* @return A string representing the IOCR type.
*/
static const char * pf_iocr_type_to_string (pf_iocr_type_values_t type)
{
const char * s = "<unknown>";
switch (type)
{
case PF_IOCR_TYPE_INPUT:
s = "INPUT";
break;
case PF_IOCR_TYPE_OUTPUT:
s = "OUTPUT";
break;
case PF_IOCR_TYPE_MC_CONSUMER:
s = "MC CONSUMER";
break;
case PF_IOCR_TYPE_MC_PROVIDER:
s = "MC PROVIDER";
break;
default:
break;
}
return s;
}
/**
* @internal
* Return a string representation of the AR type.
* @param type In: The AR type.
* @return A string representing the AR type.
*/
static const char * pf_ar_type_to_string (pf_ar_type_values_t type)
{
const char * s = "<unknown>";
switch (type)
{
case PF_ART_IOCAR_SINGLE:
s = "PF_ART_IOCAR_SINGLE";
break;
case PF_ART_IOSAR:
s = "PF_ART_IOSAR";
break;
case PF_ART_IOCAR_SINGLE_RTC_3:
s = "PF_ART_IOCAR_SINGLE_RTC_3";
break;
case PF_ART_IOCAR_SR:
s = "PF_ART_IOCAR_SR";
break;
}
return s;
}
void pf_cmrpc_show (pnet_t * net, unsigned level)
{
uint16_t ix;
uint16_t iy;
uint16_t ar_ix;
pf_ar_t * p_ar = NULL;
pf_iocr_t * p_iocr = NULL;
pf_session_info_t * p_sess = NULL;
pf_iodata_object_t * p_desc;
if (level & 0x0800)
{
printf ("\nCMRPC sessions:\n");
for (ix = 0; ix < PF_MAX_SESSION; ix++)
{
p_sess = &net->cmrpc_session_info[ix];
printf ("Session index = %u\n", ix);
printf (" Alloc session ID = %u\n", (unsigned)p_sess->ix);
printf (" in use = %s\n", p_sess->in_use ? "YES" : "NO");
printf (
" release in progress= %s\n",
p_sess->release_in_progress ? "YES" : "NO");
printf (" socket = %u\n", (unsigned)p_sess->socket);
printf (" @AR = %p\n", p_sess->p_ar);
printf (" from me = %s\n", p_sess->from_me ? "YES" : "NO");
printf (
" ip_addr = %u.%u.%u.%u\n",
((unsigned)p_sess->ip_addr >> 24) & 0xff,
((unsigned)p_sess->ip_addr >> 16) & 0xff,
((unsigned)p_sess->ip_addr >> 8) & 0xff,
(unsigned)p_sess->ip_addr & 0xff);
printf (" port = %u\n", (unsigned)p_sess->port);
printf (
" sequence_nmb_send = %u\n",
(unsigned)p_sess->sequence_nmb_send);
printf (
" fragment_nbr = %u\n",
(unsigned)p_sess->in_fragment_nbr);
printf (
" dcontrol_sequence_nmb = %u\n",
(unsigned)p_sess->dcontrol_sequence_nmb);
printf (
" dcontrol result = %02x %02x %02x %02x\n",
(unsigned)p_sess->dcontrol_result.pnio_status.error_code,
(unsigned)p_sess->dcontrol_result.pnio_status.error_decode,
(unsigned)p_sess->dcontrol_result.pnio_status.error_code_1,
(unsigned)p_sess->dcontrol_result.pnio_status.error_code_2);
printf (
" activity UUID = "
"%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x\n",
(unsigned)p_sess->activity_uuid.data1,
(unsigned)p_sess->activity_uuid.data2,
(unsigned)p_sess->activity_uuid.data3,
(unsigned)p_sess->activity_uuid.data4[0],
(unsigned)p_sess->activity_uuid.data4[1],
(unsigned)p_sess->activity_uuid.data4[2],
(unsigned)p_sess->activity_uuid.data4[3],
(unsigned)p_sess->activity_uuid.data4[4],
(unsigned)p_sess->activity_uuid.data4[5],
(unsigned)p_sess->activity_uuid.data4[6],
(unsigned)p_sess->activity_uuid.data4[7]);
}
}
if (level & 0x1000)
{
printf ("\nCMRPC ARs:\n");
for (ar_ix = 0; ar_ix < PNET_MAX_AR; ar_ix++)
{
p_ar = pf_ar_find_by_index (net, ar_ix);
printf ("AR index = %u\n", (unsigned)ar_ix);
printf ("AR in use = %s\n", p_ar->in_use ? "YES" : "NO");
printf ("AR arep = %u\n", (unsigned)p_ar->arep);
printf (
"AR state = %s\n",
pf_ar_state_to_string (p_ar->ar_state));
printf (
"sync state = %s\n",
pf_ar_sync_state_to_string (p_ar->sync_state));
printf (
"ready 4 data = %s\n",
p_ar->ready_4_data ? "TRUE" : "FALSE");
pf_cmdev_ar_show (p_ar);
pf_cmpbe_show (p_ar);
pf_cmio_show (p_ar);
pf_cmsm_show (p_ar);
pf_cmwrr_show (net, p_ar);
printf ("AR param valid = %u\n", (unsigned)p_ar->ar_param.valid);
printf (
" type = %s\n",
pf_ar_type_to_string (p_ar->ar_param.ar_type));
printf (
" session key = %u\n",
(unsigned)p_ar->ar_param.session_key);
printf (
" prop state = %u\n",
(unsigned)p_ar->ar_param.ar_properties.state);
printf (
" par server = %s\n",
p_ar->ar_param.ar_properties.parameterization_server ==
PF_PS_EXTERNAL_PARAMETER_SERVER
? "Ext"
: "CM initiator");
printf (
" dev access = %u\n",
(unsigned)p_ar->ar_param.ar_properties.device_access);
printf (
" sup allowed = %u\n",
(unsigned)p_ar->ar_param.ar_properties.supervisor_takeover_allowed);
printf (
" pull alarm OK= %u\n",
(unsigned)p_ar->ar_param.ar_properties.pull_module_alarm_allowed);
printf (
" startup mode = %s\n",
p_ar->ar_param.ar_properties.startup_mode ? "Advanced" : "Legacy");
printf (" err_cls = %x\n", (unsigned)p_ar->err_cls);
printf (" err_code = %x\n", (unsigned)p_ar->err_code);
printf (
" CM Initiator Activity Timeout Factor = %u\n",
p_ar->ar_param.cm_initiator_activity_timeout_factor);
pf_alarm_show (p_ar);
printf ("nbr_iocr = %u\n", (unsigned)p_ar->nbr_iocrs);
if (level & 0x03)
{
for (ix = 0; ix < p_ar->nbr_iocrs; ix++)
{
p_iocr = &p_ar->iocrs[ix];
printf ("\n--------------CMRPC AR IOCR %u ---------------\n", ix);
printf (
"%3u : IOCR type = %s\n",
(unsigned)ix,
pf_iocr_type_to_string (p_iocr->param.iocr_type));
printf (
"%3u : in_length = %u\n",
(unsigned)ix,
(unsigned)p_iocr->in_length);
printf (
"%3u : out_length = %u\n",
(unsigned)ix,
(unsigned)p_iocr->out_length);
printf (
"%3u : nbr_data_desc= %u\n",
(unsigned)ix,
(unsigned)p_iocr->nbr_data_desc);
if (level & 0x02) /* More details */
{
for (iy = 0; iy < p_iocr->nbr_data_desc; iy++)
{
p_desc = &p_iocr->data_desc[iy];
printf (
"%3u,%3u: in_use = %u\n",
(unsigned)ix,
(unsigned)iy,
(unsigned)p_desc->in_use);
printf (
"%3u,%3u: data_avail = %u\n",
(unsigned)ix,
(unsigned)iy,
(unsigned)p_desc->data_avail);
printf (
"%3u,%3u: api = %u\n",
(unsigned)ix,
(unsigned)iy,
(unsigned)p_desc->api_id);
printf (
"%3u,%3u: slot = %u\n",
(unsigned)ix,
(unsigned)iy,
(unsigned)p_desc->slot_nbr);
printf (
"%3u,%3u: subslot = %u\n",
(unsigned)ix,
(unsigned)iy,
(unsigned)p_desc->subslot_nbr);
printf (
"%3u,%3u: offset = %u\n",
(unsigned)ix,
(unsigned)iy,
(unsigned)p_desc->data_offset);
printf (
"%3u,%3u: len = %u\n",
(unsigned)ix,
(unsigned)iy,
(unsigned)p_desc->data_length);
printf (
"%3u,%3u: IOPS off = %u\n",
(unsigned)ix,
(unsigned)iy,
(unsigned)p_desc->iops_offset);
printf (
"%3u,%3u: IOPS len = %u\n",
(unsigned)ix,
(unsigned)iy,
(unsigned)p_desc->iops_length);
printf (
"%3u,%3u: IOCS off = %u\n",
(unsigned)ix,
(unsigned)iy,
(unsigned)p_desc->iocs_offset);
printf (
"%3u,%3u: IOCS len = %u\n",
(unsigned)ix,
(unsigned)iy,
(unsigned)p_desc->iocs_length);
}
if (
(p_iocr->param.iocr_type == PF_IOCR_TYPE_INPUT) ||
(p_iocr->param.iocr_type == PF_IOCR_TYPE_MC_PROVIDER))
{
pf_ppm_show (&p_iocr->ppm);
}
else
{
pf_cpm_show (net, &p_iocr->cpm);
}
}
}
}
printf ("\n");
}
}
}
/*********************** Sessions and ARs ************************************/
/**
* @internal
* Allocate a new session instance.
* @param net InOut: The p-net stack instance
* @param pp_sess Out: A pointer to the new session instance.
* @return 0 if operation succeeded.
* -1 if an error occurred.
*/
static int pf_session_allocate (pnet_t * net, pf_session_info_t ** pp_sess)
{
int ret = -1;
uint16_t ix = 0;
pf_session_info_t * p_sess = NULL;
const pnet_ethaddr_t * mac_address = pf_cmina_get_device_macaddr (net);
os_mutex_lock (net->p_cmrpc_rpc_mutex);
while ((ix < NELEMENTS (net->cmrpc_session_info)) &&
(net->cmrpc_session_info[ix].in_use == true))
{
ix++;
}
if (ix < NELEMENTS (net->cmrpc_session_info))
{
p_sess = &net->cmrpc_session_info[ix];
memset (p_sess, 0, sizeof (*p_sess));
p_sess->in_use = true;
p_sess->eth_handle = net->pf_interface.main_port.handle;
p_sess->p_ar = NULL;
p_sess->sequence_nmb_send = 0;
p_sess->dcontrol_sequence_nmb = UINT32_MAX;
p_sess->ix = ix;
/* Set activity UUID. Will be overwritten for incoming requests. */
pf_generate_uuid (
os_get_current_time_us(),
net->cmrpc_session_number,
*mac_address,
&p_sess->activity_uuid);
net->cmrpc_session_number++;
*pp_sess = p_sess;
LOG_DEBUG (
PF_RPC_LOG,
"CMRPC(%d): Allocated session %u\n",
__LINE__,
(unsigned)p_sess->ix);
ret = 0;
}
os_mutex_unlock (net->p_cmrpc_rpc_mutex);
return ret;
}
/**
* @internal
* Free the session_info.
* Close the corresponding UDP socket if necessary.
*
* @param net InOut: The p-net stack instance
* @param p_sess InOut: The session instance.
*/
static void pf_session_release (pnet_t * net, pf_session_info_t * p_sess)
{
if (p_sess != NULL)
{
if (p_sess->in_use == true)
{
if (p_sess->socket > 0)
{
if (p_sess->from_me)
{
pf_udp_close (net, p_sess->socket);
}
}
if (p_sess->resend_timeout != 0)
{
pf_scheduler_remove (net, rpc_sync_name, p_sess->resend_timeout);
p_sess->resend_timeout = 0;
}
LOG_DEBUG (
PF_RPC_LOG,
"CMRPC(%d): Released session %u\n",
__LINE__,
(unsigned)p_sess->ix);
memset (p_sess, 0, sizeof (*p_sess));
p_sess->in_use = false;
}
else
{
LOG_ERROR (PF_RPC_LOG, "CMRPC(%d): Session not in use\n", __LINE__);
}
}
else
{
LOG_ERROR (PF_RPC_LOG, "CMRPC(%d): Session is NULL\n", __LINE__);
}
}
/**
* @internal
* Find a session (in use) by its activity UUID.
* @param net InOut: The p-net stack instance
* @param p_uuid In: The UUID to look for.
* @param pp_sess Out: The session instance.
* @return 0 if operation succeeded.
* -1 if an error occurred.
*/
static int pf_session_locate_by_uuid (
pnet_t * net,
const pf_uuid_t * p_uuid,
pf_session_info_t ** pp_sess)
{
int ret = -1;
uint16_t ix;
ix = 0;
while ((ix < NELEMENTS (net->cmrpc_session_info)) &&
((net->cmrpc_session_info[ix].in_use == false) ||
(memcmp (
p_uuid,
&net->cmrpc_session_info[ix].activity_uuid,
sizeof (*p_uuid)) != 0)))
{
ix++;
}
if (ix < NELEMENTS (net->cmrpc_session_info))
{
*pp_sess = &net->cmrpc_session_info[ix];
ret = 0;
}
return ret;
}
/**
* @internal
* Find a session by its AR (parent) instance.
* Only find sessions that originate from the device.
* Returns the first session in use.
*
* @param net InOut: The p-net stack instance
* @param p_ar In: The AR instance.
* @param pp_sess Out: The session instance.
* @return 0 if operation succeeded.
* -1 if an error occurred.
*/
static int pf_session_locate_by_ar (
pnet_t * net,
const pf_ar_t * p_ar,
pf_session_info_t ** pp_sess)
{
int ret = -1;
uint16_t ix;
ix = 0;
while ((ix < NELEMENTS (net->cmrpc_session_info)) &&
((net->cmrpc_session_info[ix].in_use == false) ||
(net->cmrpc_session_info[ix].from_me == false) ||
(net->cmrpc_session_info[ix].p_ar != p_ar)))
{
ix++;
}
if (ix < NELEMENTS (net->cmrpc_session_info))
{
*pp_sess = &net->cmrpc_session_info[ix];
ret = 0;
}
return ret;
}
/**
* @internal
* Allocate and clear a new AR.
* @param net InOut: The p-net stack instance
* @param pp_ar Out: The new AR instance.
* @return 0 if operation succeeded.
* -1 if an error occurred.
*/
static int pf_ar_allocate (pnet_t * net, pf_ar_t ** pp_ar)
{
int ret = -1;
uint16_t ix = 0;
os_mutex_lock (net->p_cmrpc_rpc_mutex);
while ((ix < NELEMENTS (net->cmrpc_ar)) &&
(net->cmrpc_ar[ix].in_use == true))
{
ix++;
}
if (ix < NELEMENTS (net->cmrpc_ar))
{
memset (&net->cmrpc_ar[ix], 0, sizeof (net->cmrpc_ar[ix]));
net->cmrpc_ar[ix].in_use = true;
pf_cmsu_init (net, &net->cmrpc_ar[ix]);
pf_cmwrr_init (net, &net->cmrpc_ar[ix]);
*pp_ar = &net->cmrpc_ar[ix];
ret = 0;
}
os_mutex_unlock (net->p_cmrpc_rpc_mutex);
if (ix < PNET_MAX_AR)
{
net->cmrpc_ar[ix].arep = ix + 1; /* Avoid AREP == 0 */
LOG_DEBUG (PF_RPC_LOG, "CMRPC(%d): Allocate AR %u\n", __LINE__, ix);
}
return ret;
}
/**
* @internal
* Free the AR.
* @param p_ar InOut: The AR instance.
*/
static void pf_ar_release (pf_ar_t * p_ar)
{
if (p_ar != NULL)
{
if (p_ar->in_use == true)
{
LOG_DEBUG (
PF_RPC_LOG,
"CMRPC(%d): Free AR %u\n",
__LINE__,
p_ar->arep - 1);
memset (p_ar, 0, sizeof (*p_ar));
}
else
{
LOG_ERROR (PNET_LOG, "CMRPC(%d): AR already released\n", __LINE__);
}
}
else
{
LOG_ERROR (PNET_LOG, "CMRPC(%d): AR is NULL\n", __LINE__);
}
}
/**
* @internal
* Find an AR by its UUID. The AR must be in a "used" state (not POWER_ON).
* @param net InOut: The p-net stack instance
* @param p_uuid In: The AR_UUID.
* @param pp_ar Out: The AR (or NULL).
* @return 0 if AR is found and in "used" state.
* -1 if the AR_UUID is invalid.
*/
static int pf_ar_find_by_uuid (
pnet_t * net,
const pf_uuid_t * p_uuid,
pf_ar_t ** pp_ar)
{
int ret = -1;
uint16_t ix;
pf_cmdev_state_values_t cmdev_state;
ix = 0;
while (
(ix < NELEMENTS (net->cmrpc_ar)) &&
((net->cmrpc_ar[ix].in_use == false) ||
((pf_cmdev_get_state (&net->cmrpc_ar[ix], &cmdev_state) == 0) &&
(cmdev_state == PF_CMDEV_STATE_POWER_ON)) ||
(memcmp (p_uuid, &net->cmrpc_ar[ix].ar_param.ar_uuid, sizeof (*p_uuid)) !=
0)))
{
ix++;
}
if (ix < NELEMENTS (net->cmrpc_ar))
{
*pp_ar = &net->cmrpc_ar[ix];
ret = 0;
}
return ret;
}
pf_ar_t * pf_ar_find_by_index (pnet_t * net, uint16_t ix)
{
if (ix < NELEMENTS (net->cmrpc_ar))
{
return &net->cmrpc_ar[ix];
}
return NULL;
}
int pf_ar_find_by_arep (pnet_t * net, uint32_t arep, pf_ar_t ** pp_ar)
{
int ret = -1;
uint16_t ix;
if (arep > 0)
{
ix = arep - 1; /* Convert to index */
if ((ix < NELEMENTS (net->cmrpc_ar)) && (net->cmrpc_ar[ix].in_use == true))
{
*pp_ar = &net->cmrpc_ar[ix];
ret = 0;
}
}
return ret;
}
/******************** Error handling *****************************************/
void pf_set_error (
pnet_result_t * p_stat,
uint8_t code,
uint8_t decode,
uint8_t code_1,
uint8_t code_2)
{
LOG_INFO (
PNET_LOG,
"CMRPC(%d) Setting error: 0x%02X 0x%02X 0x%02X 0x%02X\n",
__LINE__,
(unsigned)code,
(unsigned)decode,
(unsigned)code_1,
(unsigned)code_2);
if (
p_stat->pnio_status.error_code != PNET_ERROR_CODE_NOERROR ||
p_stat->pnio_status.error_decode != PNET_ERROR_DECODE_NOERROR)
{
LOG_DEBUG (
PNET_LOG,
"CMRPC(%d) Did overwrite previous error: 0x%02X 0x%02X 0x%02X "
"0x%02X\n",
__LINE__,
(unsigned)p_stat->pnio_status.error_code,
(unsigned)p_stat->pnio_status.error_decode,
(unsigned)p_stat->pnio_status.error_code_1,
(unsigned)p_stat->pnio_status.error_code_2);
}
p_stat->pnio_status.error_code = code;
p_stat->pnio_status.error_decode = decode;
p_stat->pnio_status.error_code_1 = code_1;
p_stat->pnio_status.error_code_2 = code_2;
}
void pf_set_error_if_not_already_set (
pnet_result_t * p_stat,
uint8_t code,
uint8_t decode,
uint8_t code_1,
uint8_t code_2)
{
if (
p_stat->pnio_status.error_code == PNET_ERROR_CODE_NOERROR &&
p_stat->pnio_status.error_decode == PNET_ERROR_DECODE_NOERROR)
{
LOG_INFO (
PNET_LOG,
"CMRPC(%d) Setting error: 0x%02X 0x%02X 0x%02X 0x%02X (not "
"overwriting)\n",
__LINE__,
(unsigned)code,
(unsigned)decode,
(unsigned)code_1,
(unsigned)code_2);
p_stat->pnio_status.error_code = code;
p_stat->pnio_status.error_decode = decode;
p_stat->pnio_status.error_code_1 = code_1;
p_stat->pnio_status.error_code_2 = code_2;
}
else
{
LOG_DEBUG (
PNET_LOG,
"CMRPC(%d) No overwrite of error, as these values already are set: "
"0x%02X 0x%02X 0x%02X 0x%02X Ignored error: 0x%02X 0x%02X 0x%02X "
"0x%02X\n",
__LINE__,
(unsigned)p_stat->pnio_status.error_code,
(unsigned)p_stat->pnio_status.error_decode,
(unsigned)p_stat->pnio_status.error_code_1,
(unsigned)p_stat->pnio_status.error_code_2,
(unsigned)code,
(unsigned)decode,
(unsigned)code_1,
(unsigned)code_2);
}
}
/******************** Send UDP ***********************************************/
/**
* @internal
* Send a UDP packet from a buffer
*
* @param p_net InOut: The p-net stack instance
* @param p_sess InOut: The session.
* @param data In: Data
* @param size In: Size in bytes
* @param payload_description In: Payload description for debug printouts
* @return 0 if operation succeeded.
* -1 if an error occurred.
*/
static int pf_cmrpc_send_once_from_buffer (
pnet_t * p_net,
pf_session_info_t * p_sess,
const uint8_t * data,
int size,
const char * payload_description)
{
int ret = -1;
char ip_string[PNAL_INET_ADDRSTR_SIZE] = {0}; /** Terminated string */
if (size != 0)
{
pf_cmina_ip_to_string (p_sess->ip_addr, ip_string);
LOG_INFO (
PF_RPC_LOG,
"CMRPC(%d): Sending %u bytes on socket %u to %s:%u Payload:'%s' "
"Session from me:%u Session index:%u\n",
__LINE__,
size,
(unsigned)p_sess->socket,
ip_string,
p_sess->port,
payload_description,
p_sess->from_me,
p_sess->ix);
if (
pf_udp_sendto (
p_net,
p_sess->socket,
p_sess->ip_addr,
p_sess->port,
data,
size) == size)
{
ret = 0;
}
}
else
{
LOG_DEBUG (
PF_RPC_LOG,
"CMRPC(%d): No UDP data to send on the socket. Session from me:%u "
"Session index:%u\n",
__LINE__,
p_sess->from_me,
p_sess->ix);
}
return ret;
}
/**
* @internal
* Send a UDP packet from the output buffer in the session.
*
* @param p_net InOut: The p-net stack instance
* @param p_sess InOut: The session.
* @param payload_description In: Payload description for debug printouts
* @return 0 if operation succeeded.
* -1 if an error occurred.
*/
static int pf_cmrpc_send_once (
pnet_t * p_net,
pf_session_info_t * p_sess,
const char * payload_description)
{
int ret = -1;
ret = pf_cmrpc_send_once_from_buffer (
p_net,
p_sess,
p_sess->out_buffer,
p_sess->out_buf_send_len,
payload_description);
return ret;
}
/**
* @internal
* Send a UDP packet from the output buffer in the session, with retry.
* Start a timer that calls this function again if the timer expires.
*
* This is a callback for the scheduler. Arguments should fulfill
* pf_scheduler_timeout_ftn_t
*
* Typically used for CControl and for fragments.
*
* @param p_net InOut: The p-net stack instance
* @param arg InOut: The session.
* @param current_time In: The current system time, in microseconds,
* when the scheduler is started to execute
* stored tasks.
* @return 0 if operation succeeded.
* -1 if an error occurred.
*/
static void pf_cmrpc_send_with_timeout (
pnet_t * p_net,
void * arg,
uint32_t current_time)
{
pf_session_info_t * p_sess = (pf_session_info_t *)arg;
uint32_t delay = 0;
const char * payload_description;
if (p_sess == NULL)
{
LOG_ERROR (
PF_RPC_LOG,
"CMRPC(%d): Invalid session, it is NULL\n",
__LINE__);
}
else if (p_sess->socket < 0)
{
LOG_ERROR (
PF_RPC_LOG,
"CMRPC(%d): Invalid session, the socket is not open.\n",
__LINE__);
}
else
{