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qrtr.c
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qrtr.c
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//https://github.com/andersson/qrtr
/******************************************************************************
@file QrtrCM.c
@brief GobiNet driver.
DESCRIPTION
Connectivity Management Tool for USB network adapter of Quectel wireless cellular modules.
INITIALIZATION AND SEQUENCING REQUIREMENTS
None.
---------------------------------------------------------------------------
Copyright (c) 2016 - 2020 Quectel Wireless Solution, Co., Ltd. All Rights Reserved.
Quectel Wireless Solution Proprietary and Confidential.
---------------------------------------------------------------------------
******************************************************************************/
#include <stdio.h>
#include <string.h>
#include <termios.h>
#include <stdio.h>
#include <ctype.h>
#include "QMIThread.h"
#include <linux/qrtr.h>
#ifndef AF_QIPCRTR
#define AF_QIPCRTR 42
#endif
#ifndef QRTR_NODE_BCAST
#define QRTR_NODE_BCAST 0xffffffffu
#define QRTR_PORT_CTRL 0xfffffffeu
enum qrtr_pkt_type {
QRTR_TYPE_DATA = 1,
QRTR_TYPE_HELLO = 2,
QRTR_TYPE_BYE = 3,
QRTR_TYPE_NEW_SERVER = 4,
QRTR_TYPE_DEL_SERVER = 5,
QRTR_TYPE_DEL_CLIENT = 6,
QRTR_TYPE_RESUME_TX = 7,
QRTR_TYPE_EXIT = 8,
QRTR_TYPE_PING = 9,
QRTR_TYPE_NEW_LOOKUP = 10,
QRTR_TYPE_DEL_LOOKUP = 11,
};
struct qrtr_ctrl_pkt {
uint32_t cmd;
union {
struct {
uint32_t service;
uint32_t instance;
uint32_t node;
uint32_t port;
} server;
struct {
uint32_t node;
uint32_t port;
} client;
};
} __attribute__((packed));
#endif
typedef struct {
uint32_t service;
uint32_t version;
uint32_t instance;
uint32_t node;
uint32_t port;
} QrtrService;
#define QRTR_MAX QMUX_TYPE_WDS_ADMIN
static QrtrService service_list[QRTR_MAX];
static int qmiclientId[QMUX_TYPE_WDS_ADMIN + 1];
static int qrtr_socket(void)
{
struct sockaddr_qrtr sq;
socklen_t sl = sizeof(sq);
int sock;
int rc;
sock = socket(AF_QIPCRTR, SOCK_DGRAM, 0);
if (sock < 0) {
dbg_time("socket errno: %d (%s)\n", errno, strerror(errno));
return -1;
}
rc = getsockname(sock, (void *)&sq, &sl);
if (rc || sq.sq_family != AF_QIPCRTR || sl != sizeof(sq)) {
dbg_time("getsockname: %d (%s)\n", errno, strerror(errno));
close(sock);
return -1;
}
return sock;
}
static int qrtr_sendto(int sock, uint32_t node, uint32_t port, const void *data, unsigned int sz)
{
struct sockaddr_qrtr sq = {};
int rc;
sq.sq_family = AF_QIPCRTR;
sq.sq_node = node;
sq.sq_port = port;
rc = sendto(sock, data, sz, 0, (void *)&sq, sizeof(sq));
if (rc < 0) {
dbg_time("sendto errno: %d (%s)\n", errno, strerror(errno));
return -1;
}
return 0;
}
static int get_client(UCHAR QMIType) {
int ClientId;
QrtrService *s = &service_list[QMIType];
if (!s ->service) {
dbg_time("%s service: %d for QMIType: %d", __func__, s ->service, QMIType);
return -ENODEV;
}
ClientId = qrtr_socket();
if (ClientId == -1) {
return -1;
}
switch (QMIType) {
case QMUX_TYPE_WDS: dbg_time("Get clientWDS = %d", ClientId); break;
case QMUX_TYPE_DMS: dbg_time("Get clientDMS = %d", ClientId); break;
case QMUX_TYPE_NAS: dbg_time("Get clientNAS = %d", ClientId); break;
case QMUX_TYPE_QOS: dbg_time("Get clientQOS = %d", ClientId); break;
case QMUX_TYPE_WMS: dbg_time("Get clientWMS = %d", ClientId); break;
case QMUX_TYPE_PDS: dbg_time("Get clientPDS = %d", ClientId); break;
case QMUX_TYPE_UIM: dbg_time("Get clientUIM = %d", ClientId); break;
case QMUX_TYPE_WDS_ADMIN: dbg_time("Get clientWDA = %d", ClientId);
break;
default: break;
}
return ClientId;
}
static int qmi_send(PQCQMIMSG pRequest) {
uint8_t QMIType = pRequest->QMIHdr.QMIType;
int sock;
QrtrService *s = &service_list[QMIType == QMUX_TYPE_WDS_IPV6 ? QMUX_TYPE_WDS: QMIType];
sock = qmiclientId[QMIType];
pRequest->QMIHdr.ClientId = 1;
if (!s ->service || !sock) {
dbg_time("%s service: %d, sock: %d for QMIType: %d", __func__, s ->service, sock, QMIType);
return -ENODEV;
}
return qrtr_sendto(sock, s->node, s->port, &pRequest->MUXMsg,
le16_to_cpu(pRequest->QMIHdr.Length) + 1 - sizeof(QCQMI_HDR));
}
static int qmi_deinit(void) {
unsigned int i;
for (i = 0; i < sizeof(qmiclientId)/sizeof(qmiclientId[0]); i++)
{
if (qmiclientId[i] != 0)
{
close(qmiclientId[i]);
qmiclientId[i] = 0;
}
}
return 0;
}
static void handle_crtrl_pkt(int sock) {
struct qrtr_ctrl_pkt pkt;
struct sockaddr_qrtr sq;
socklen_t sl = sizeof(sq);
uint32_t type;
int rc;
rc = recvfrom(sock, &pkt, sizeof(pkt), 0, (void *)&sq, &sl);
if (rc < 0)
return;
type = le32toh(pkt.cmd);
//dbg_time("type %u, node %u, sq.port %x, len: %d", type, sq.sq_node, sq.sq_port, rc);
if (sq.sq_port != QRTR_PORT_CTRL)
return;
if (QRTR_TYPE_NEW_SERVER == type || QRTR_TYPE_DEL_SERVER == type) {
QrtrService s;
s.service = le32toh(pkt.server.service);
s.version = le32toh(pkt.server.instance) & 0xff;
s.instance = le32toh(pkt.server.instance) >> 8;
s.node = le32toh(pkt.server.node);
s.port = le32toh(pkt.server.port);
//dbg_time ("[qrtr] %s server on %u:%u -> service %u, version %u, instance %u",
// QRTR_TYPE_NEW_SERVER == type ? "add" : "remove",
// s.node, s.port, s.service, s.version, s.instance);
if (QRTR_TYPE_NEW_SERVER == type) {
if (s.service == QMUX_TYPE_WDS
|| s.service == QMUX_TYPE_NAS
|| s.service == QMUX_TYPE_UIM
|| s.service == QMUX_TYPE_DMS
|| s.service == QMUX_TYPE_WDS_ADMIN)
{
service_list[s.service] = s;
if (qmiclientId[s.service] == 0) {
qmiclientId[s.service] = get_client(s.service);
if (s.service == QMUX_TYPE_WDS) {
qmiclientId[QMUX_TYPE_WDS_IPV6] = get_client(QMUX_TYPE_WDS);
}
}
}
else if (s.service == 0) {
qmidevice_send_event_to_main(RIL_INDICATE_DEVICE_CONNECTED);
}
}
else if (QRTR_TYPE_DEL_SERVER == type) {
if (s.service < QRTR_MAX) {
memset(&service_list[s.service], 0, sizeof(QrtrService));
}
}
}
}
static void * qmi_read(void *pData) {
PROFILE_T *profile = (PROFILE_T *)pData;
struct qrtr_ctrl_pkt pkt;
struct sockaddr_qrtr sq;
socklen_t sl = sizeof(sq);
int sock;
int rc;
int wait_for_request_quit = 0;
sock = qrtr_socket();
if (sock == -1)
goto _quit;
memset(&pkt, 0, sizeof(pkt));
pkt.cmd = htole32(QRTR_TYPE_NEW_LOOKUP);
getsockname(sock, (void *)&sq, &sl);
rc = qrtr_sendto(sock, sq.sq_node, QRTR_PORT_CTRL, &pkt, sizeof(pkt));
if (rc == -1)
goto _quit;
while (1) {
struct pollfd pollfds[16] = {{qmidevice_control_fd[1], POLLIN, 0}, {sock, POLLIN, 0}};
int ne, ret, nevents = 2;
unsigned int i;
for (i = 0; i < sizeof(qmiclientId)/sizeof(qmiclientId[0]); i++)
{
if (qmiclientId[i] != 0)
{
pollfds[nevents].fd = qmiclientId[i];
pollfds[nevents].events = POLLIN;
pollfds[nevents].revents = 0;
nevents++;
}
}
do {
ret = poll(pollfds, nevents, wait_for_request_quit ? 1000 : -1);
} while ((ret < 0) && (errno == EINTR));
if (ret == 0 && wait_for_request_quit) {
QmiThreadRecvQMI(NULL); //main thread may pending on QmiThreadSendQMI()
continue;
}
if (ret <= 0) {
dbg_time("%s poll=%d, errno: %d (%s)", __func__, ret, errno, strerror(errno));
break;
}
for (ne = 0; ne < nevents; ne++) {
int fd = pollfds[ne].fd;
short revents = pollfds[ne].revents;
if (revents & (POLLERR | POLLHUP | POLLNVAL)) {
dbg_time("%s poll err/hup/inval", __func__);
dbg_time("epoll fd = %d, events = 0x%04x", fd, revents);
if (fd == qmidevice_control_fd[1]) {
} else {
}
if (revents & (POLLERR | POLLHUP | POLLNVAL))
goto _quit;
}
if ((revents & POLLIN) == 0)
continue;
if (fd == qmidevice_control_fd[1]) {
int triger_event;
if (read(fd, &triger_event, sizeof(triger_event)) == sizeof(triger_event)) {
//DBG("triger_event = 0x%x", triger_event);
switch (triger_event) {
case RIL_REQUEST_QUIT:
goto _quit;
break;
case SIG_EVENT_STOP:
wait_for_request_quit = 1;
break;
default:
break;
}
}
}
else if (fd == sock) {
handle_crtrl_pkt(sock);
if ( profile->wda_client != qmiclientId[QMUX_TYPE_WDS_ADMIN])
profile->wda_client = qmiclientId[QMUX_TYPE_WDS_ADMIN];
}
else
{
PQCQMIMSG pResponse = (PQCQMIMSG)cm_recv_buf;
sl = sizeof(sq);
rc = recvfrom(fd, &pResponse->MUXMsg, sizeof(cm_recv_buf) - sizeof(QCQMI_HDR), 0, (void *)&sq, &sl);
//dbg_time(" fd %d, node %u, sq.port %x, len: %d", fd, sq.sq_node, sq.sq_port, rc);
if (rc <= 0)
{
dbg_time("%s read=%d errno: %d (%s)", __func__, rc, errno, strerror(errno));
break;
}
for (i = 0; i < sizeof(qmiclientId)/sizeof(qmiclientId[0]); i++)
{
if (qmiclientId[i] == fd)
{
pResponse->QMIHdr.QMIType = i;
if (service_list[i].node != sq.sq_node || service_list[i].port != sq.sq_port) {
continue;
}
}
}
pResponse->QMIHdr.IFType = USB_CTL_MSG_TYPE_QMI;
pResponse->QMIHdr.Length = cpu_to_le16(rc + sizeof(QCQMI_HDR) - 1);
pResponse->QMIHdr.CtlFlags = 0x00;
pResponse->QMIHdr.ClientId = 1;
QmiThreadRecvQMI(pResponse);
}
}
}
_quit:
qmi_deinit();
qmidevice_send_event_to_main(RIL_INDICATE_DEVICE_DISCONNECTED);
QmiThreadRecvQMI(NULL); //main thread may pending on QmiThreadSendQMI()
dbg_time("%s exit", __func__);
pthread_exit(NULL);
return NULL;
}
const struct qmi_device_ops qrtr_qmidev_ops = {
.deinit = qmi_deinit,
.send = qmi_send,
.read = qmi_read,
};