695 lines
22 KiB
C
695 lines
22 KiB
C
/******************************************************************************
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@file quectel-qmi-proxy.c
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@brief The qmi proxy.
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DESCRIPTION
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Connectivity Management Tool for USB network adapter of Quectel wireless cellular modules.
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INITIALIZATION AND SEQUENCING REQUIREMENTS
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None.
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---------------------------------------------------------------------------
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Copyright (c) 2016 - 2020 Quectel Wireless Solution, Co., Ltd. All Rights Reserved.
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Quectel Wireless Solution Proprietary and Confidential.
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---------------------------------------------------------------------------
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******************************************************************************/
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#include <unistd.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include <stdarg.h>
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#include <stddef.h>
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#include <fcntl.h>
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#include <pthread.h>
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#include <poll.h>
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#include <sys/socket.h>
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#include <sys/time.h>
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#include <sys/ioctl.h>
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#include <linux/un.h>
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#include <linux/if.h>
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#include <dirent.h>
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#include <signal.h>
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#include <inttypes.h>
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#include "qendian.h"
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#include "qlist.h"
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#include "MPQMI.h"
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#include "MPQCTL.h"
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#include "MPQMUX.h"
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#ifndef MIN
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#define MIN(a, b) ((a) < (b)? (a): (b))
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#endif
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const char * get_time(void) {
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static char time_buf[128];
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struct timeval tv;
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time_t time;
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suseconds_t millitm;
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struct tm *ti;
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gettimeofday (&tv, NULL);
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time= tv.tv_sec;
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millitm = (tv.tv_usec + 500) / 1000;
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if (millitm == 1000) {
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++time;
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millitm = 0;
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}
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ti = localtime(&time);
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sprintf(time_buf, "[%02d-%02d_%02d:%02d:%02d:%03d]", ti->tm_mon+1, ti->tm_mday, ti->tm_hour, ti->tm_min, ti->tm_sec, (int)millitm);
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return time_buf;
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}
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#define dprintf(fmt, args...) do { fprintf(stdout, "%s " fmt, get_time(), ##args); } while(0);
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#define SYSCHECK(c) do{if((c)<0) {dprintf("%s %d error: '%s' (code: %d)\n", __func__, __LINE__, strerror(errno), errno); return -1;}}while(0)
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#define cfmakenoblock(fd) do{fcntl(fd, F_SETFL, fcntl(fd,F_GETFL) | O_NONBLOCK);}while(0)
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typedef struct {
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struct qlistnode qnode;
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int ClientFd;
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QCQMIMSG qmi[0];
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} QMI_PROXY_MSG;
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typedef struct {
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struct qlistnode qnode;
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uint8_t QMIType;
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uint8_t ClientId;
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unsigned AccessTime;
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} QMI_PROXY_CLINET;
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typedef struct {
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struct qlistnode qnode;
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struct qlistnode client_qnode;
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int ClientFd;
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unsigned AccessTime;
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} QMI_PROXY_CONNECTION;
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#ifdef QUECTEL_QMI_MERGE
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#define MERGE_PACKET_IDENTITY 0x2c7c
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#define MERGE_PACKET_VERSION 0x0001
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#define MERGE_PACKET_MAX_PAYLOAD_SIZE 56
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typedef struct __QMI_MSG_HEADER {
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uint16_t idenity;
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uint16_t version;
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uint16_t cur_len;
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uint16_t total_len;
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} QMI_MSG_HEADER;
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typedef struct __QMI_MSG_PACKET {
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QMI_MSG_HEADER header;
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uint16_t len;
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char buf[4096];
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} QMI_MSG_PACKET;
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#endif
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static int qmi_proxy_quit = 0;
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static pthread_t thread_id = 0;
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static int cdc_wdm_fd = -1;
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static int qmi_proxy_server_fd = -1;
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static struct qlistnode qmi_proxy_connection;
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static struct qlistnode qmi_proxy_ctl_msg;
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static int verbose_debug = 0;
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static int modem_reset_flag = 0;
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static int qmi_sync_done = 0;
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static uint8_t qmi_buf[4096];
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#ifdef QUECTEL_QMI_MERGE
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static int merge_qmi_rsp_packet(void *buf, ssize_t *src_size) {
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static QMI_MSG_PACKET s_QMIPacket;
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QMI_MSG_HEADER *header = NULL;
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ssize_t size = *src_size;
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if((uint16_t)size < sizeof(QMI_MSG_HEADER))
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return -1;
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header = (QMI_MSG_HEADER *)buf;
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if(le16toh(header->idenity) != MERGE_PACKET_IDENTITY || le16toh(header->version) != MERGE_PACKET_VERSION || le16toh(header->cur_len) > le16toh(header->total_len))
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return -1;
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if(le16toh(header->cur_len) == le16toh(header->total_len)) {
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*src_size = le16toh(header->total_len);
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memcpy(buf, buf + sizeof(QMI_MSG_HEADER), *src_size);
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s_QMIPacket.len = 0;
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return 0;
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}
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memcpy(s_QMIPacket.buf + s_QMIPacket.len, buf + sizeof(QMI_MSG_HEADER), le16toh(header->cur_len));
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s_QMIPacket.len += le16toh(header->cur_len);
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if (le16toh(header->cur_len) < MERGE_PACKET_MAX_PAYLOAD_SIZE || s_QMIPacket.len >= le16toh(header->total_len)) {
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memcpy(buf, s_QMIPacket.buf, s_QMIPacket.len);
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*src_size = s_QMIPacket.len;
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s_QMIPacket.len = 0;
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return 0;
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}
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return -1;
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}
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#endif
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static int create_local_server(const char *name) {
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int sockfd = -1;
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int reuse_addr = 1;
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struct sockaddr_un sockaddr;
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socklen_t alen;
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/*Create server socket*/
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SYSCHECK(sockfd = socket(AF_LOCAL, SOCK_STREAM, 0));
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memset(&sockaddr, 0, sizeof(sockaddr));
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sockaddr.sun_family = AF_LOCAL;
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sockaddr.sun_path[0] = 0;
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memcpy(sockaddr.sun_path + 1, name, strlen(name) );
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alen = strlen(name) + offsetof(struct sockaddr_un, sun_path) + 1;
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SYSCHECK(setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &reuse_addr,sizeof(reuse_addr)));
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if(bind(sockfd, (struct sockaddr *)&sockaddr, alen) < 0) {
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close(sockfd);
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dprintf("bind %s errno: %d (%s)\n", name, errno, strerror(errno));
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return -1;
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}
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dprintf("local server: %s sockfd = %d\n", name, sockfd);
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cfmakenoblock(sockfd);
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listen(sockfd, 1);
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return sockfd;
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}
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static void accept_qmi_connection(int serverfd) {
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int clientfd = -1;
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unsigned char addr[128];
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socklen_t alen = sizeof(addr);
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QMI_PROXY_CONNECTION *qmi_con;
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clientfd = accept(serverfd, (struct sockaddr *)addr, &alen);
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qmi_con = (QMI_PROXY_CONNECTION *)malloc(sizeof(QMI_PROXY_CONNECTION));
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if (qmi_con) {
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qlist_init(&qmi_con->qnode);
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qlist_init(&qmi_con->client_qnode);
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qmi_con->ClientFd= clientfd;
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qmi_con->AccessTime = 0;
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dprintf("+++ ClientFd=%d\n", qmi_con->ClientFd);
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qlist_add_tail(&qmi_proxy_connection, &qmi_con->qnode);
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}
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cfmakenoblock(clientfd);
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}
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static void cleanup_qmi_connection(int clientfd) {
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struct qlistnode *con_node, *qmi_node;
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qlist_for_each(con_node, &qmi_proxy_connection) {
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QMI_PROXY_CONNECTION *qmi_con = qnode_to_item(con_node, QMI_PROXY_CONNECTION, qnode);
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if (qmi_con->ClientFd == clientfd) {
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while (!qlist_empty(&qmi_con->client_qnode)) {
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QMI_PROXY_CLINET *qmi_client = qnode_to_item(qlist_head(&qmi_con->client_qnode), QMI_PROXY_CLINET, qnode);
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dprintf("xxx ClientFd=%d QMIType=%d ClientId=%d\n", qmi_con->ClientFd, qmi_client->QMIType, qmi_client->ClientId);
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qlist_remove(&qmi_client->qnode);
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free(qmi_client);
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}
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qlist_for_each(qmi_node, &qmi_proxy_ctl_msg) {
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QMI_PROXY_MSG *qmi_msg = qnode_to_item(qmi_node, QMI_PROXY_MSG, qnode);
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if (qmi_msg->ClientFd == qmi_con->ClientFd) {
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qlist_remove(&qmi_msg->qnode);
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free(qmi_msg);
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break;
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}
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}
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dprintf("--- ClientFd=%d\n", qmi_con->ClientFd);
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close(qmi_con->ClientFd);
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qlist_remove(&qmi_con->qnode);
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free(qmi_con);
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break;
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}
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}
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}
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static void get_client_id(QMI_PROXY_CONNECTION *qmi_con, PQMICTL_GET_CLIENT_ID_RESP_MSG pClient) {
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if (pClient->QMIResult == 0 && pClient->QMIError == 0) {
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QMI_PROXY_CLINET *qmi_client = (QMI_PROXY_CLINET *)malloc(sizeof(QMI_PROXY_CLINET));
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qlist_init(&qmi_client->qnode);
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qmi_client->QMIType = pClient->QMIType;
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qmi_client->ClientId = pClient->ClientId;
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qmi_client->AccessTime = 0;
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dprintf("+++ ClientFd=%d QMIType=%d ClientId=%d\n", qmi_con->ClientFd, qmi_client->QMIType, qmi_client->ClientId);
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qlist_add_tail(&qmi_con->client_qnode, &qmi_client->qnode);
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}
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}
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static void release_client_id(QMI_PROXY_CONNECTION *qmi_con, PQMICTL_RELEASE_CLIENT_ID_RESP_MSG pClient) {
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struct qlistnode *client_node;
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if (pClient->QMIResult == 0 && pClient->QMIError == 0) {
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qlist_for_each (client_node, &qmi_con->client_qnode) {
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QMI_PROXY_CLINET *qmi_client = qnode_to_item(client_node, QMI_PROXY_CLINET, qnode);
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if (pClient->QMIType == qmi_client->QMIType && pClient->ClientId == qmi_client->ClientId) {
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dprintf("--- ClientFd=%d QMIType=%d ClientId=%d\n", qmi_con->ClientFd, qmi_client->QMIType, qmi_client->ClientId);
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qlist_remove(&qmi_client->qnode);
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free(qmi_client);
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break;
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}
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}
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}
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}
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static void dump_qmi(PQCQMIMSG pQMI, int fd, const char flag)
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{
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if (verbose_debug)
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{
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unsigned i;
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unsigned size = le16toh(pQMI->QMIHdr.Length) + 1;
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printf("%c %d %u: ", flag, fd, size);
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if (size > 16)
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size = 16;
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for (i = 0; i < size; i++)
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printf("%02x ", ((uint8_t *)pQMI)[i]);
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printf("\n");
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}
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}
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static int send_qmi_to_cdc_wdm(PQCQMIMSG pQMI) {
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struct pollfd pollfds[]= {{cdc_wdm_fd, POLLOUT, 0}};
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ssize_t ret = 0;
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do {
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ret = poll(pollfds, sizeof(pollfds)/sizeof(pollfds[0]), 5000);
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} while (ret == -1 && errno == EINTR && qmi_proxy_quit == 0);
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if (pollfds[0].revents & POLLOUT) {
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ssize_t size = le16toh(pQMI->QMIHdr.Length) + 1;
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ret = write(cdc_wdm_fd, pQMI, size);
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dump_qmi(pQMI, cdc_wdm_fd, 'w');
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}
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return ret;
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}
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static int send_qmi_to_client(PQCQMIMSG pQMI, int clientFd) {
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struct pollfd pollfds[]= {{clientFd, POLLOUT, 0}};
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ssize_t ret = 0;
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do {
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ret = poll(pollfds, sizeof(pollfds)/sizeof(pollfds[0]), 5000);
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} while (ret == -1 && errno == EINTR && qmi_proxy_quit == 0);
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if (pollfds[0].revents & POLLOUT) {
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ssize_t size = le16toh(pQMI->QMIHdr.Length) + 1;
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ret = write(clientFd, pQMI, size);
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dump_qmi(pQMI, clientFd, 'w');
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}
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return ret;
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}
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static void recv_qmi_from_dev(PQCQMIMSG pQMI) {
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struct qlistnode *con_node, *client_node;
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if (qmi_proxy_server_fd == -1) {
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qmi_sync_done = 1;
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}
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else if (pQMI->QMIHdr.QMIType == QMUX_TYPE_CTL) {
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if (pQMI->CTLMsg.QMICTLMsgHdr.CtlFlags == QMICTL_CTL_FLAG_RSP) {
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if (!qlist_empty(&qmi_proxy_ctl_msg)) {
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QMI_PROXY_MSG *qmi_msg = qnode_to_item(qlist_head(&qmi_proxy_ctl_msg), QMI_PROXY_MSG, qnode);
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qlist_for_each(con_node, &qmi_proxy_connection) {
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QMI_PROXY_CONNECTION *qmi_con = qnode_to_item(con_node, QMI_PROXY_CONNECTION, qnode);
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if (qmi_con->ClientFd == qmi_msg->ClientFd) {
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send_qmi_to_client(pQMI, qmi_msg->ClientFd);
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if (le16toh(pQMI->CTLMsg.QMICTLMsgHdrRsp.QMICTLType) == QMICTL_GET_CLIENT_ID_RESP)
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get_client_id(qmi_con, &pQMI->CTLMsg.GetClientIdRsp);
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else if ((le16toh(pQMI->CTLMsg.QMICTLMsgHdrRsp.QMICTLType) == QMICTL_RELEASE_CLIENT_ID_RESP) ||
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(le16toh(pQMI->CTLMsg.QMICTLMsgHdrRsp.QMICTLType) == QMICTL_REVOKE_CLIENT_ID_IND)) {
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release_client_id(qmi_con, &pQMI->CTLMsg.ReleaseClientIdRsp);
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if (le16toh(pQMI->CTLMsg.QMICTLMsgHdrRsp.QMICTLType) == QMICTL_REVOKE_CLIENT_ID_IND)
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modem_reset_flag = 1;
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}
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else {
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}
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}
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}
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qlist_remove(&qmi_msg->qnode);
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free(qmi_msg);
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}
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}
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if (!qlist_empty(&qmi_proxy_ctl_msg)) {
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QMI_PROXY_MSG *qmi_msg = qnode_to_item(qlist_head(&qmi_proxy_ctl_msg), QMI_PROXY_MSG, qnode);
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qlist_for_each(con_node, &qmi_proxy_connection) {
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QMI_PROXY_CONNECTION *qmi_con = qnode_to_item(con_node, QMI_PROXY_CONNECTION, qnode);
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if (qmi_con->ClientFd == qmi_msg->ClientFd) {
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send_qmi_to_cdc_wdm(qmi_msg->qmi);
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}
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}
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}
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}
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else {
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qlist_for_each(con_node, &qmi_proxy_connection) {
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QMI_PROXY_CONNECTION *qmi_con = qnode_to_item(con_node, QMI_PROXY_CONNECTION, qnode);
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qlist_for_each(client_node, &qmi_con->client_qnode) {
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QMI_PROXY_CLINET *qmi_client = qnode_to_item(client_node, QMI_PROXY_CLINET, qnode);
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if (pQMI->QMIHdr.QMIType == qmi_client->QMIType) {
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if (pQMI->QMIHdr.ClientId == 0 || pQMI->QMIHdr.ClientId == qmi_client->ClientId) {
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send_qmi_to_client(pQMI, qmi_con->ClientFd);
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}
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}
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}
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}
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}
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}
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static int recv_qmi_from_client(PQCQMIMSG pQMI, unsigned size, int clientfd) {
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if (qmi_proxy_server_fd <= 0) {
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send_qmi_to_cdc_wdm(pQMI);
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}
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else if (pQMI->QMIHdr.QMIType == QMUX_TYPE_CTL) {
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QMI_PROXY_MSG *qmi_msg;
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if (pQMI->CTLMsg.QMICTLMsgHdr.QMICTLType == QMICTL_SYNC_REQ) {
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dprintf("do not allow client send QMICTL_SYNC_REQ\n");
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return 0;
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}
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if (qlist_empty(&qmi_proxy_ctl_msg))
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send_qmi_to_cdc_wdm(pQMI);
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qmi_msg = malloc(sizeof(QMI_PROXY_MSG) + size);
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qlist_init(&qmi_msg->qnode);
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qmi_msg->ClientFd = clientfd;
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memcpy(qmi_msg->qmi, pQMI, size);
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qlist_add_tail(&qmi_proxy_ctl_msg, &qmi_msg->qnode);
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}
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else {
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send_qmi_to_cdc_wdm(pQMI);
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}
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return 0;
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}
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static int qmi_proxy_init(void) {
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unsigned i;
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QCQMIMSG _QMI;
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PQCQMIMSG pQMI = &_QMI;
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dprintf("%s enter\n", __func__);
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pQMI->QMIHdr.IFType = USB_CTL_MSG_TYPE_QMI;
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pQMI->QMIHdr.CtlFlags = 0x00;
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pQMI->QMIHdr.QMIType = QMUX_TYPE_CTL;
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pQMI->QMIHdr.ClientId= 0x00;
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pQMI->CTLMsg.QMICTLMsgHdr.CtlFlags = QMICTL_FLAG_REQUEST;
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qmi_sync_done = 0;
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for (i = 0; i < 10; i++) {
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pQMI->CTLMsg.SyncReq.TransactionId = i+1;
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pQMI->CTLMsg.SyncReq.QMICTLType = QMICTL_SYNC_REQ;
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pQMI->CTLMsg.SyncReq.Length = 0;
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pQMI->QMIHdr.Length =
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htole16(le16toh(pQMI->CTLMsg.QMICTLMsgHdr.Length) + sizeof(QCQMI_HDR) + sizeof(QCQMICTL_MSG_HDR) - 1);
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if (send_qmi_to_cdc_wdm(pQMI) <= 0)
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break;
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sleep(1);
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if (qmi_sync_done)
|
|
break;
|
|
}
|
|
|
|
dprintf("%s %s\n", __func__, qmi_sync_done ? "succful" : "fail");
|
|
return qmi_sync_done ? 0 : -1;
|
|
}
|
|
|
|
static void qmi_start_server(const char* servername) {
|
|
qmi_proxy_server_fd = create_local_server(servername);
|
|
dprintf("qmi_proxy_server_fd = %d\n", qmi_proxy_server_fd);
|
|
if (qmi_proxy_server_fd == -1) {
|
|
dprintf("Failed to create %s, errno: %d (%s)\n", servername, errno, strerror(errno));
|
|
}
|
|
}
|
|
|
|
static void qmi_close_server(const char* servername) {
|
|
if (qmi_proxy_server_fd != -1) {
|
|
dprintf("%s %s close server\n", __func__, servername);
|
|
close(qmi_proxy_server_fd);
|
|
qmi_proxy_server_fd = -1;
|
|
}
|
|
}
|
|
|
|
static void *qmi_proxy_loop(void *param)
|
|
{
|
|
PQCQMIMSG pQMI = (PQCQMIMSG)qmi_buf;
|
|
struct qlistnode *con_node;
|
|
QMI_PROXY_CONNECTION *qmi_con;
|
|
|
|
(void)param;
|
|
dprintf("%s enter thread_id %p\n", __func__, (void *)pthread_self());
|
|
|
|
qlist_init(&qmi_proxy_connection);
|
|
qlist_init(&qmi_proxy_ctl_msg);
|
|
|
|
while (cdc_wdm_fd > 0 && qmi_proxy_quit == 0) {
|
|
struct pollfd pollfds[2+64];
|
|
int ne, ret, nevents = 0;
|
|
ssize_t nreads;
|
|
|
|
pollfds[nevents].fd = cdc_wdm_fd;
|
|
pollfds[nevents].events = POLLIN;
|
|
pollfds[nevents].revents= 0;
|
|
nevents++;
|
|
|
|
if (qmi_proxy_server_fd > 0) {
|
|
pollfds[nevents].fd = qmi_proxy_server_fd;
|
|
pollfds[nevents].events = POLLIN;
|
|
pollfds[nevents].revents= 0;
|
|
nevents++;
|
|
}
|
|
|
|
qlist_for_each(con_node, &qmi_proxy_connection) {
|
|
qmi_con = qnode_to_item(con_node, QMI_PROXY_CONNECTION, qnode);
|
|
|
|
pollfds[nevents].fd = qmi_con->ClientFd;
|
|
pollfds[nevents].events = POLLIN;
|
|
pollfds[nevents].revents= 0;
|
|
nevents++;
|
|
|
|
if (nevents == (sizeof(pollfds)/sizeof(pollfds[0])))
|
|
break;
|
|
}
|
|
|
|
#if 0
|
|
dprintf("poll ");
|
|
for (ne = 0; ne < nevents; ne++) {
|
|
dprintf("%d ", pollfds[ne].fd);
|
|
}
|
|
dprintf("\n");
|
|
#endif
|
|
|
|
do {
|
|
//ret = poll(pollfds, nevents, -1);
|
|
ret = poll(pollfds, nevents, (qmi_proxy_server_fd > 0) ? -1 : 200);
|
|
} while (ret == -1 && errno == EINTR && qmi_proxy_quit == 0);
|
|
|
|
if (ret < 0) {
|
|
dprintf("%s poll=%d, errno: %d (%s)\n", __func__, ret, errno, strerror(errno));
|
|
goto qmi_proxy_loop_exit;
|
|
}
|
|
|
|
for (ne = 0; ne < nevents; ne++) {
|
|
int fd = pollfds[ne].fd;
|
|
short revents = pollfds[ne].revents;
|
|
|
|
if (revents & (POLLERR | POLLHUP | POLLNVAL)) {
|
|
dprintf("%s poll fd = %d, revents = %04x\n", __func__, fd, revents);
|
|
if (fd == cdc_wdm_fd) {
|
|
goto qmi_proxy_loop_exit;
|
|
} else if(fd == qmi_proxy_server_fd) {
|
|
|
|
} else {
|
|
cleanup_qmi_connection(fd);
|
|
}
|
|
|
|
continue;
|
|
}
|
|
|
|
if (!(pollfds[ne].revents & POLLIN)) {
|
|
continue;
|
|
}
|
|
|
|
if (fd == qmi_proxy_server_fd) {
|
|
accept_qmi_connection(fd);
|
|
}
|
|
else if (fd == cdc_wdm_fd) {
|
|
nreads = read(fd, pQMI, sizeof(qmi_buf));
|
|
if (nreads <= 0) {
|
|
dprintf("%s read=%d errno: %d (%s)\n", __func__, (int)nreads, errno, strerror(errno));
|
|
goto qmi_proxy_loop_exit;
|
|
}
|
|
#ifdef QUECTEL_QMI_MERGE
|
|
if(merge_qmi_rsp_packet(pQMI, &nreads))
|
|
continue;
|
|
#endif
|
|
if (nreads != (le16toh(pQMI->QMIHdr.Length) + 1)) {
|
|
dprintf("%s nreads=%d, pQCQMI->QMIHdr.Length = %d\n", __func__, (int)nreads, le16toh(pQMI->QMIHdr.Length));
|
|
continue;
|
|
}
|
|
|
|
dump_qmi(pQMI, fd, 'r');
|
|
recv_qmi_from_dev(pQMI);
|
|
if (modem_reset_flag)
|
|
goto qmi_proxy_loop_exit;
|
|
}
|
|
else {
|
|
nreads = read(fd, pQMI, sizeof(qmi_buf));
|
|
|
|
if (nreads <= 0) {
|
|
dprintf("%s read=%d errno: %d (%s)", __func__, (int)nreads, errno, strerror(errno));
|
|
cleanup_qmi_connection(fd);
|
|
break;
|
|
}
|
|
|
|
if (nreads != (le16toh(pQMI->QMIHdr.Length) + 1)) {
|
|
dprintf("%s nreads=%d, pQCQMI->QMIHdr.Length = %d\n", __func__, (int)nreads, le16toh(pQMI->QMIHdr.Length));
|
|
continue;
|
|
}
|
|
|
|
dump_qmi(pQMI, fd, 'r');
|
|
recv_qmi_from_client(pQMI, nreads, fd);
|
|
}
|
|
}
|
|
}
|
|
|
|
qmi_proxy_loop_exit:
|
|
while (!qlist_empty(&qmi_proxy_connection)) {
|
|
QMI_PROXY_CONNECTION *qmi_con = qnode_to_item(qlist_head(&qmi_proxy_connection), QMI_PROXY_CONNECTION, qnode);
|
|
|
|
cleanup_qmi_connection(qmi_con->ClientFd);
|
|
}
|
|
|
|
dprintf("%s exit, thread_id %p\n", __func__, (void *)pthread_self());
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static void usage(void) {
|
|
dprintf(" -d <device_name> A valid qmi device\n"
|
|
" default /dev/cdc-wdm0, but cdc-wdm0 may be invalid\n"
|
|
" -i <netcard_name> netcard name\n"
|
|
" -v Will show all details\n");
|
|
}
|
|
|
|
static void sig_action(int sig) {
|
|
if (qmi_proxy_quit == 0) {
|
|
qmi_proxy_quit = 1;
|
|
if (thread_id)
|
|
pthread_kill(thread_id, sig);
|
|
}
|
|
}
|
|
|
|
int main(int argc, char *argv[]) {
|
|
int opt;
|
|
char cdc_wdm[32+1] = "/dev/cdc-wdm0";
|
|
int retry_times = 0;
|
|
char servername[64] = {0};
|
|
|
|
optind = 1;
|
|
|
|
signal(SIGINT, sig_action);
|
|
|
|
while ( -1 != (opt = getopt(argc, argv, "d:i:vh"))) {
|
|
switch (opt) {
|
|
case 'd':
|
|
strcpy(cdc_wdm, optarg);
|
|
break;
|
|
case 'v':
|
|
verbose_debug = 1;
|
|
break;
|
|
default:
|
|
usage();
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
if (access(cdc_wdm, R_OK | W_OK)) {
|
|
dprintf("Fail to access %s, errno: %d (%s). break\n", cdc_wdm, errno, strerror(errno));
|
|
return -1;
|
|
}
|
|
|
|
sprintf(servername, "quectel-qmi-proxy%c", cdc_wdm[strlen(cdc_wdm)-1]);
|
|
dprintf("Will use cdc-wdm='%s', proxy='%s'\n", cdc_wdm, servername);
|
|
|
|
while (qmi_proxy_quit == 0) {
|
|
if (access(cdc_wdm, R_OK | W_OK)) {
|
|
dprintf("Fail to access %s, errno: %d (%s). continue\n", cdc_wdm, errno, strerror(errno));
|
|
// wait device
|
|
sleep(3);
|
|
continue;
|
|
}
|
|
|
|
cdc_wdm_fd = open(cdc_wdm, O_RDWR | O_NONBLOCK | O_NOCTTY);
|
|
if (cdc_wdm_fd == -1) {
|
|
dprintf("Failed to open %s, errno: %d (%s). break\n", cdc_wdm, errno, strerror(errno));
|
|
return -1;
|
|
}
|
|
cfmakenoblock(cdc_wdm_fd);
|
|
|
|
/* no qmi_proxy_loop lives, create one */
|
|
pthread_create(&thread_id, NULL, qmi_proxy_loop, NULL);
|
|
/* try to redo init if failed, init function must be successfully */
|
|
while (qmi_proxy_init() != 0) {
|
|
if (retry_times < 5) {
|
|
dprintf("fail to init proxy, try again in 2 seconds.\n");
|
|
sleep(2);
|
|
retry_times++;
|
|
} else {
|
|
dprintf("has failed too much times, restart the modem and have a try...\n");
|
|
break;
|
|
}
|
|
/* break loop if modem is detached */
|
|
if (access(cdc_wdm, F_OK|R_OK|W_OK))
|
|
break;
|
|
}
|
|
retry_times = 0;
|
|
qmi_start_server(servername);
|
|
if (qmi_proxy_server_fd == -1)
|
|
pthread_cancel(thread_id);
|
|
pthread_join(thread_id, NULL);
|
|
|
|
/* close local server at last */
|
|
qmi_close_server(servername);
|
|
close(cdc_wdm_fd);
|
|
/* DO RESTART IN 20s IF MODEM RESET ITSELF */
|
|
if (modem_reset_flag) {
|
|
unsigned int time_to_wait = 20;
|
|
while (time_to_wait) {
|
|
time_to_wait = sleep(time_to_wait);
|
|
}
|
|
modem_reset_flag = 0;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|