746 lines
24 KiB
C
746 lines
24 KiB
C
/******************************************************************************
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@file udhcpc.c
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@brief call DHCP tools to obtain IP address.
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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 - 2023 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 <sys/socket.h>
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#include <sys/select.h>
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#include <sys/types.h>
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#include <net/if.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <endian.h>
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#include "util.h"
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#include "QMIThread.h"
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extern int ql_get_netcard_carrier_state(const char *devname);
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static __inline in_addr_t qmi2addr(uint32_t __x) {
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return (__x>>24) | (__x>>8&0xff00) | (__x<<8&0xff0000) | (__x<<24);
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}
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static int ql_system(const char *shell_cmd) {
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dbg_time("%s", shell_cmd);
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return system(shell_cmd);
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}
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static void ifc_init_ifr(const char *name, struct ifreq *ifr)
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{
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memset(ifr, 0, sizeof(struct ifreq));
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no_trunc_strncpy(ifr->ifr_name, name, IFNAMSIZ);
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ifr->ifr_name[IFNAMSIZ - 1] = 0;
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}
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static void ql_set_mtu(const char *ifname, int ifru_mtu) {
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int inet_sock;
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struct ifreq ifr;
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inet_sock = socket(AF_INET, SOCK_DGRAM, 0);
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if (inet_sock > 0) {
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ifc_init_ifr(ifname, &ifr);
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if (!ioctl(inet_sock, SIOCGIFMTU, &ifr)) {
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if (ifr.ifr_ifru.ifru_mtu != ifru_mtu) {
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dbg_time("change mtu %d -> %d", ifr.ifr_ifru.ifru_mtu , ifru_mtu);
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ifr.ifr_ifru.ifru_mtu = ifru_mtu;
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ioctl(inet_sock, SIOCSIFMTU, &ifr);
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}
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}
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close(inet_sock);
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}
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}
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static int ifc_get_addr(const char *name, in_addr_t *addr)
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{
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int inet_sock;
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struct ifreq ifr;
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int ret = 0;
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inet_sock = socket(AF_INET, SOCK_DGRAM, 0);
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ifc_init_ifr(name, &ifr);
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if (addr != NULL) {
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ret = ioctl(inet_sock, SIOCGIFADDR, &ifr);
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if (ret < 0) {
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*addr = 0;
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} else {
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*addr = ((struct sockaddr_in*) &ifr.ifr_addr)->sin_addr.s_addr;
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}
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}
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close(inet_sock);
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return ret;
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}
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static short ifc_get_flags(const char *ifname)
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{
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int inet_sock;
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struct ifreq ifr;
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int ret = 0;
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inet_sock = socket(AF_INET, SOCK_DGRAM, 0);
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if (inet_sock > 0) {
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ifc_init_ifr(ifname, &ifr);
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if (!ioctl(inet_sock, SIOCGIFFLAGS, &ifr)) {
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ret = ifr.ifr_ifru.ifru_flags;
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}
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close(inet_sock);
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}
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return ret;
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}
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static void ifc_set_state(const char *ifname, int state) {
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char shell_cmd[128];
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if (!access("/sbin/ip", X_OK)) {
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snprintf(shell_cmd, sizeof(shell_cmd), "ip link set dev %s %s", ifname, state ? "up" : "down");
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} else {
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snprintf(shell_cmd, sizeof(shell_cmd), "ifconfig %s %s", ifname, state ? "up" : "down");
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}
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ql_system(shell_cmd);
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}
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static int ql_netcard_ipv4_address_check(const char *ifname, in_addr_t ip) {
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in_addr_t addr = 0;
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ifc_get_addr(ifname, &addr);
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return addr == ip;
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}
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static int ql_raw_ip_mode_check(const char *ifname, uint32_t ip) {
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int fd;
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char raw_ip[128];
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char mode[2] = "X";
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int mode_change = 0;
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if (ql_netcard_ipv4_address_check(ifname, qmi2addr(ip)))
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return 0;
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snprintf(raw_ip, sizeof(raw_ip), "/sys/class/net/%s/qmi/raw_ip", ifname);
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if (access(raw_ip, F_OK))
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return 0;
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fd = open(raw_ip, O_RDWR | O_NONBLOCK | O_NOCTTY);
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if (fd < 0) {
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dbg_time("%s %d fail to open(%s), errno:%d (%s)", __FILE__, __LINE__, raw_ip, errno, strerror(errno));
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return 0;
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}
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if (read(fd, mode, 2) == -1) {};
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if (mode[0] == '0' || mode[0] == 'N') {
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dbg_time("File:%s Line:%d udhcpc fail to get ip address, try next:", __func__, __LINE__);
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ifc_set_state(ifname, 0);
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dbg_time("echo Y > /sys/class/net/%s/qmi/raw_ip", ifname);
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mode[0] = 'Y';
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if (write(fd, mode, 2) == -1) {};
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mode_change = 1;
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ifc_set_state(ifname, 1);
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}
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close(fd);
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return mode_change;
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}
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static void* udhcpc_thread_function(void* arg) {
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FILE * udhcpc_fp;
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char *udhcpc_cmd = (char *)arg;
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if (udhcpc_cmd == NULL)
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return NULL;
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dbg_time("%s", udhcpc_cmd);
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udhcpc_fp = popen(udhcpc_cmd, "r");
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free(udhcpc_cmd);
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if (udhcpc_fp) {
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char buf[0xff];
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buf[sizeof(buf)-1] = '\0';
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while((fgets(buf, sizeof(buf)-1, udhcpc_fp)) != NULL) {
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if ((strlen(buf) > 1) && (buf[strlen(buf) - 1] == '\n'))
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buf[strlen(buf) - 1] = '\0';
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dbg_time("%s", buf);
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}
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pclose(udhcpc_fp);
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}
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return NULL;
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}
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//#define USE_DHCLIENT
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#ifdef USE_DHCLIENT
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static int dhclient_alive = 0;
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#endif
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static int dibbler_client_alive = 0;
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void ql_set_driver_link_state(PROFILE_T *profile, int link_state) {
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char link_file[128];
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int fd;
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int new_state = 0;
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snprintf(link_file, sizeof(link_file), "/sys/class/net/%s/link_state", profile->usbnet_adapter);
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fd = open(link_file, O_RDWR | O_NONBLOCK | O_NOCTTY);
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if (fd == -1) {
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if (errno != ENOENT)
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dbg_time("Fail to access %s, errno: %d (%s)", link_file, errno, strerror(errno));
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return;
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}
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if (profile->qmap_mode <= 1)
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new_state = !!link_state;
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else {
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//0x80 means link off this pdp
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new_state = (link_state ? 0x00 : 0x80) + (profile->muxid & 0x7F);
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}
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snprintf(link_file, sizeof(link_file), "%d\n", new_state);
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if (write(fd, link_file, sizeof(link_file)) == -1) {};
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if (link_state == 0 && profile->qmapnet_adapter[0]
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&& strcmp(profile->qmapnet_adapter, profile->usbnet_adapter)) {
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size_t rc;
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lseek(fd, 0, SEEK_SET);
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rc = read(fd, link_file, sizeof(link_file));
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if (rc > 1 && (!strncasecmp(link_file, "0\n", 2) || !strncasecmp(link_file, "0x0\n", 4))) {
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ifc_set_state(profile->usbnet_adapter, 0);
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}
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}
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close(fd);
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}
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static const char *ipv4Str(const uint32_t Address) {
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static char str[] = {"255.225.255.255"};
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uint8_t *ip = (uint8_t *)&Address;
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snprintf(str, sizeof(str), "%d.%d.%d.%d", ip[3], ip[2], ip[1], ip[0]);
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return str;
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}
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static const char *ipv6Str(const UCHAR Address[16]) {
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static char str[64];
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uint16_t ip[8];
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int i;
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for (i = 0; i < 8; i++) {
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ip[i] = (Address[i*2]<<8) + Address[i*2+1];
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}
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snprintf(str, sizeof(str), "%x:%x:%x:%x:%x:%x:%x:%x",
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ip[0], ip[1], ip[2], ip[3], ip[4], ip[5], ip[6], ip[7]);
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return str;
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}
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void update_ipv4_address(const char *ifname, const char *ip, const char *gw, unsigned prefix)
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{
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char shell_cmd[128];
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if (!ifname)
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return;
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if (!access("/sbin/ip", X_OK)) {
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snprintf(shell_cmd, sizeof(shell_cmd), "ip -%d address flush dev %s", 4, ifname);
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ql_system(shell_cmd);
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snprintf(shell_cmd, sizeof(shell_cmd), "ip -%d address add %s/%u dev %s", 4, ip, prefix, ifname);
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ql_system(shell_cmd);
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//ping6 www.qq.com
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snprintf(shell_cmd, sizeof(shell_cmd), "ip -%d route add default via %s dev %s", 4, gw, ifname);
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ql_system(shell_cmd);
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} else {
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unsigned n = (0xFFFFFFFF >> (32 - prefix)) << (32 - prefix);
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// n = (n>>24) | (n>>8&0xff00) | (n<<8&0xff0000) | (n<<24);
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snprintf(shell_cmd, sizeof(shell_cmd), "ifconfig %s %s netmask %s", ifname, ip, ipv4Str(n));
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ql_system(shell_cmd);
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//Resetting default routes
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snprintf(shell_cmd, sizeof(shell_cmd), "route del default dev %s", ifname);
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while(!system(shell_cmd));
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snprintf(shell_cmd, sizeof(shell_cmd), "route add default gw %s dev %s", gw, ifname);
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ql_system(shell_cmd);
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}
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}
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void update_ipv6_address(const char *ifname, const char *ip, const char *gw, unsigned prefix) {
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char shell_cmd[128];
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(void)gw;
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if (!access("/sbin/ip", X_OK)) {
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snprintf(shell_cmd, sizeof(shell_cmd), "ip -%d address flush dev %s", 6, ifname);
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ql_system(shell_cmd);
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snprintf(shell_cmd, sizeof(shell_cmd), "ip -%d address add %s/%u dev %s", 6, ip, prefix, ifname);
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ql_system(shell_cmd);
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//ping6 www.qq.com
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snprintf(shell_cmd, sizeof(shell_cmd), "ip -%d route add default dev %s", 6, ifname);
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ql_system(shell_cmd);
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} else {
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snprintf(shell_cmd, sizeof(shell_cmd), "ifconfig %s %s/%d", ifname, ip, prefix);
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ql_system(shell_cmd);
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snprintf(shell_cmd, sizeof(shell_cmd), "route -A inet6 add default dev %s", ifname);
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ql_system(shell_cmd);
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}
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}
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static void update_ip_address_by_qmi(const char *ifname, const IPV4_T *ipv4, const IPV6_T *ipv6) {
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char *d1, *d2;
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if (ipv4 && ipv4->Address) {
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d1 = strdup(ipv4Str(ipv4->Address));
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d2 = strdup(ipv4Str(ipv4->Gateway));
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unsigned prefix = 0;
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unsigned n = 0;
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for (n = 0; n < 32; n++) {
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if (ipv4->SubnetMask&((unsigned)1<<n)) {
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prefix++;
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}
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}
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update_ipv4_address(ifname, d1, d2, prefix);
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free(d1); free(d2);
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//Adding DNS
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if (ipv4->DnsPrimary) {
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d1 = strdup(ipv4Str(ipv4->DnsPrimary));
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d2 = strdup(ipv4Str(ipv4->DnsSecondary ? ipv4->DnsSecondary : ipv4->DnsPrimary));
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update_resolv_conf(4, ifname, d1, d2);
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free(d1); free(d2);
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}
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}
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if (ipv6 && ipv6->Address[0] && ipv6->PrefixLengthIPAddr) {
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d1 = strdup(ipv6Str(ipv6->Address));
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d2 = strdup(ipv6Str(ipv6->Gateway));
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update_ipv6_address(ifname, d1, d2, ipv6->PrefixLengthIPAddr);
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free(d1); free(d2);
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//Adding DNS
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if (ipv6->DnsPrimary[0]) {
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d1 = strdup(ipv6Str(ipv6->DnsPrimary));
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d2 = strdup(ipv6Str(ipv6->DnsSecondary[0] ? ipv6->DnsSecondary : ipv6->DnsPrimary));
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update_resolv_conf(6, ifname, d1, d2);
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free(d1); free(d2);
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}
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}
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}
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//#define QL_OPENWER_NETWORK_SETUP
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#ifdef QL_OPENWER_NETWORK_SETUP
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static const char *openwrt_lan = "br-lan";
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static const char *openwrt_wan = "wwan0";
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static int ql_openwrt_system(const char *cmd) {
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int i;
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int ret = 1;
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char shell_cmd[128];
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snprintf(shell_cmd, sizeof(shell_cmd), "%s 2>1 > /dev/null", cmd);
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for (i = 0; i < 15; i++) {
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dbg_time("%s", cmd);
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ret = system(shell_cmd);
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if (!ret)
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break;
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sleep(1);
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}
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return ret;
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}
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static int ql_openwrt_is_wan(const char *ifname) {
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if (openwrt_lan == NULL) {
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system("uci show network.wan.ifname");
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}
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if (strcmp(ifname, openwrt_wan))
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return 0;
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return 1;
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}
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static void ql_openwrt_setup_wan(const char *ifname, const IPV4_T *ipv4) {
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FILE *fp = NULL;
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char config[64];
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snprintf(config, sizeof(config), "/tmp/rmnet_%s_ipv4config", ifname);
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if (ipv4 == NULL) {
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if (ql_openwrt_is_wan(ifname))
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ql_openwrt_system("ifdown wan");
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return;
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}
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fp = fopen(config, "w");
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if (fp == NULL)
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return;
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fprintf(fp, "IFNAME=\"%s\"\n", ifname);
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fprintf(fp, "PUBLIC_IP=\"%s\"\n", ipv4Str(ipv4->Address));
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fprintf(fp, "NETMASK=\"%s\"\n", ipv4Str(ipv4->SubnetMask));
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fprintf(fp, "GATEWAY=\"%s\"\n", ipv4Str(ipv4->Gateway));
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fprintf(fp, "DNSSERVERS=\"%s", ipv4Str(ipv4->DnsPrimary));
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if (ipv4->DnsSecondary != 0)
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fprintf(fp, " %s", ipv4Str(ipv4->DnsSecondary));
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fprintf(fp, "\"\n");
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fclose(fp);
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if (!ql_openwrt_is_wan(ifname))
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return;
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ql_openwrt_system("ifup wan");
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}
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static void ql_openwrt_setup_wan6(const char *ifname, const IPV6_T *ipv6) {
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FILE *fp = NULL;
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char config[64];
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int first_ifup;
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snprintf(config, sizeof(config), "/tmp/rmnet_%s_ipv6config", ifname);
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if (ipv6 == NULL) {
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if (ql_openwrt_is_wan(ifname))
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ql_openwrt_system("ifdown wan6");
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return;
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}
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first_ifup = (access(config, F_OK) != 0);
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fp = fopen(config, "w");
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if (fp == NULL)
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return;
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fprintf(fp, "IFNAME=\"%s\"\n", ifname);
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fprintf(fp, "PUBLIC_IP=\"%s\"\n", ipv6Str(ipv6->Address));
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fprintf(fp, "NETMASK=\"%s\"\n", ipv6Str(ipv6->SubnetMask));
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fprintf(fp, "GATEWAY=\"%s\"\n", ipv6Str(ipv6->Gateway));
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fprintf(fp, "PrefixLength=\"%d\"\n", ipv6->PrefixLengthIPAddr);
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fprintf(fp, "DNSSERVERS=\"%s", ipv6Str(ipv6->DnsPrimary));
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if (ipv6->DnsSecondary[0])
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fprintf(fp, " %s", ipv6Str(ipv6->DnsSecondary));
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fprintf(fp, "\"\n");
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fclose(fp);
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if (!ql_openwrt_is_wan(ifname))
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return;
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if (first_ifup)
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ql_openwrt_system("ifup wan6");
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else
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ql_openwrt_system("/etc/init.d/network restart"); //make PC to release old IPV6 address, and RS new IPV6 address
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#if 1 //TODO? why need this?
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if (openwrt_lan) {
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int i;
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char shell_cmd[128];
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UCHAR Address[16] = {0};
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ql_openwrt_system(("ifstatus lan"));
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for (i = 0; i < (ipv6->PrefixLengthIPAddr/8); i++)
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Address[i] = ipv6->Address[i];
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snprintf(shell_cmd, sizeof(shell_cmd), "ip route del %s/%u dev %s", ipv6Str(Address), ipv6->PrefixLengthIPAddr, ifname);
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ql_openwrt_system(shell_cmd);
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snprintf(shell_cmd, sizeof(shell_cmd), "ip route add %s/%u dev %s", ipv6Str(Address), ipv6->PrefixLengthIPAddr, openwrt_lan);
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ql_system(shell_cmd);
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}
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#endif
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}
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#endif
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|
|
void udhcpc_start(PROFILE_T *profile) {
|
|
char *ifname = profile->usbnet_adapter;
|
|
|
|
ql_set_driver_link_state(profile, 1);
|
|
|
|
if (profile->qmapnet_adapter[0]) {
|
|
ifname = profile->qmapnet_adapter;
|
|
}
|
|
|
|
if (profile->rawIP && profile->ipv4.Address && profile->ipv4.Mtu) {
|
|
ql_set_mtu(ifname, (profile->ipv4.Mtu));
|
|
}
|
|
|
|
if (strcmp(ifname, profile->usbnet_adapter)) {
|
|
ifc_set_state(profile->usbnet_adapter, 1);
|
|
if (ifc_get_flags(ifname)&IFF_UP) {
|
|
ifc_set_state(ifname, 0);
|
|
}
|
|
}
|
|
|
|
ifc_set_state(ifname, 1);
|
|
if (profile->ipv4.Address) {
|
|
if (profile->PCSCFIpv4Addr1)
|
|
dbg_time("pcscf1: %s", ipv4Str(profile->PCSCFIpv4Addr1));
|
|
if (profile->PCSCFIpv4Addr2)
|
|
dbg_time("pcscf2: %s", ipv4Str(profile->PCSCFIpv4Addr2));
|
|
}
|
|
|
|
if (profile->ipv6.Address[0] && profile->ipv6.PrefixLengthIPAddr) {
|
|
if (profile->PCSCFIpv6Addr1[0])
|
|
dbg_time("pcscf1: %s", ipv6Str(profile->PCSCFIpv6Addr1));
|
|
if (profile->PCSCFIpv6Addr2[0])
|
|
dbg_time("pcscf2: %s", ipv6Str(profile->PCSCFIpv6Addr2));
|
|
}
|
|
|
|
#if 1 //for bridge mode, only one public IP, so do udhcpc manually
|
|
if (ql_bridge_mode_detect(profile)) {
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
//because must use udhcpc to obtain IP when working on ETH mode,
|
|
//so it is better also use udhcpc to obtain IP when working on IP mode.
|
|
//use the same policy for all modules
|
|
#if 0
|
|
if (profile->rawIP != 0) //mdm9x07/ec25,ec20 R2.0
|
|
{
|
|
update_ip_address_by_qmi(ifname, &profile->ipv4, &profile->ipv6);
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
if (profile->ipv4.Address == 0)
|
|
goto set_ipv6;
|
|
|
|
if (profile->no_dhcp || profile->request_ops == &mbim_request_ops) { //lots of mbim modem do not support DHCP
|
|
update_ip_address_by_qmi(ifname, &profile->ipv4, NULL);
|
|
}
|
|
else
|
|
/* Do DHCP using busybox tools */
|
|
{
|
|
char udhcpc_cmd[128];
|
|
pthread_attr_t udhcpc_thread_attr;
|
|
pthread_t udhcpc_thread_id;
|
|
|
|
pthread_attr_init(&udhcpc_thread_attr);
|
|
pthread_attr_setdetachstate(&udhcpc_thread_attr, PTHREAD_CREATE_DETACHED);
|
|
|
|
#ifdef USE_DHCLIENT
|
|
snprintf(udhcpc_cmd, sizeof(udhcpc_cmd), "dhclient -4 -d --no-pid %s", ifname);
|
|
dhclient_alive++;
|
|
#else
|
|
if (access("/usr/share/udhcpc/default.script", X_OK)
|
|
&& access("/etc//udhcpc/default.script", X_OK)) {
|
|
dbg_time("No default.script found, it should be in '/usr/share/udhcpc/' or '/etc//udhcpc' depend on your udhcpc version!");
|
|
}
|
|
|
|
//-f,--foreground Run in foreground
|
|
//-b,--background Background if lease is not obtained
|
|
//-n,--now Exit if lease is not obtained
|
|
//-q,--quit Exit after obtaining lease
|
|
//-t,--retries N Send up to N discover packets (default 3)
|
|
snprintf(udhcpc_cmd, sizeof(udhcpc_cmd), "busybox udhcpc -f -n -q -t 5 -i %s", ifname);
|
|
#endif
|
|
|
|
#if 1 //for OpenWrt
|
|
if (!access("/lib/netifd/dhcp.script", X_OK) && !access("/sbin/ifup", X_OK) && !access("/sbin/ifstatus", X_OK)) {
|
|
#if 0 //20210415 do not promot these message
|
|
dbg_time("you are use OpenWrt?");
|
|
dbg_time("should not calling udhcpc manually?");
|
|
dbg_time("should modify /etc/config/network as below?");
|
|
dbg_time("config interface wan");
|
|
dbg_time("\toption ifname %s", ifname);
|
|
dbg_time("\toption proto dhcp");
|
|
dbg_time("should use \"/sbin/ifstaus wan\" to check %s 's status?", ifname);
|
|
#endif
|
|
}
|
|
#endif
|
|
|
|
#ifdef USE_DHCLIENT
|
|
pthread_create(&udhcpc_thread_id, &udhcpc_thread_attr, udhcpc_thread_function, (void*)strdup(udhcpc_cmd));
|
|
sleep(1);
|
|
#else
|
|
pthread_create(&udhcpc_thread_id, NULL, udhcpc_thread_function, (void*)strdup(udhcpc_cmd));
|
|
pthread_join(udhcpc_thread_id, NULL);
|
|
|
|
if (profile->request_ops == &atc_request_ops) {
|
|
profile->udhcpc_ip = 0;
|
|
ifc_get_addr(ifname, &profile->udhcpc_ip);
|
|
if (profile->udhcpc_ip != profile->ipv4.Address) {
|
|
unsigned char *l = (unsigned char *)&profile->udhcpc_ip;
|
|
unsigned char *r = (unsigned char *)&profile->ipv4.Address;
|
|
dbg_time("ERROR: IP from udhcpc (%d.%d.%d.%d) is different to IP from ATC (%d.%d.%d.%d)!",
|
|
l[0], l[1], l[2], l[3], r[0], r[1], r[2], r[3]);
|
|
ql_get_netcard_carrier_state(ifname); //miss udhcpc default.script or modem not report usb-net-cdc-linkup
|
|
}
|
|
}
|
|
|
|
if (profile->request_ops != &qmi_request_ops) { //only QMI modem support next fixup!
|
|
goto set_ipv6;
|
|
}
|
|
|
|
if (ql_raw_ip_mode_check(ifname, profile->ipv4.Address)) {
|
|
pthread_create(&udhcpc_thread_id, NULL, udhcpc_thread_function, (void*)strdup(udhcpc_cmd));
|
|
pthread_join(udhcpc_thread_id, NULL);
|
|
}
|
|
|
|
if (!ql_netcard_ipv4_address_check(ifname, qmi2addr(profile->ipv4.Address))) {
|
|
//no udhcpc's default.script exist, directly set ip and dns
|
|
update_ip_address_by_qmi(ifname, &profile->ipv4, NULL);
|
|
}
|
|
//Add by Demon. check default route
|
|
FILE *rt_fp = NULL;
|
|
char rt_cmd[128] = {0};
|
|
|
|
//Check if there is a default route.
|
|
snprintf(rt_cmd, sizeof(rt_cmd), "route -n | grep %s | awk '{print $1}' | grep 0.0.0.0", ifname);
|
|
rt_fp = popen((const char *)rt_cmd, "r");
|
|
if (rt_fp != NULL) {
|
|
char buf[20] = {0};
|
|
int found_default_rt = 0;
|
|
|
|
if (fgets(buf, sizeof(buf), rt_fp) != NULL) {
|
|
//Find the specified interface
|
|
found_default_rt = 1;
|
|
}
|
|
|
|
if (1 == found_default_rt) {
|
|
//dbg_time("Route items found for %s", ifname);
|
|
}
|
|
else {
|
|
dbg_time("Warning: No route items found for %s", ifname);
|
|
}
|
|
|
|
pclose(rt_fp);
|
|
}
|
|
//End by Demon.
|
|
#endif
|
|
}
|
|
|
|
#ifdef QL_OPENWER_NETWORK_SETUP
|
|
ql_openwrt_setup_wan(ifname, &profile->ipv4);
|
|
#endif
|
|
|
|
set_ipv6:
|
|
if (profile->ipv6.Address[0] && profile->ipv6.PrefixLengthIPAddr) {
|
|
#if 1
|
|
//module do not support DHCPv6, only support 'Router Solicit'
|
|
//and it seem if enable /proc/sys/net/ipv6/conf/all/forwarding, Kernel do not send RS
|
|
const char *forward_file = "/proc/sys/net/ipv6/conf/all/forwarding";
|
|
int forward_fd = open(forward_file, O_RDONLY);
|
|
if (forward_fd > 0) {
|
|
char forward_state[2];
|
|
if (read(forward_fd, forward_state, 2) == -1) {};
|
|
if (forward_state[0] == '1') {
|
|
//dbg_time("%s enabled, kernel maybe donot send 'Router Solicit'", forward_file);
|
|
}
|
|
close(forward_fd);
|
|
}
|
|
|
|
update_ip_address_by_qmi(ifname, NULL, &profile->ipv6);
|
|
|
|
if (profile->ipv6.DnsPrimary[0] || profile->ipv6.DnsSecondary[0]) {
|
|
char dns1str[64], dns2str[64];
|
|
|
|
if (profile->ipv6.DnsPrimary[0]) {
|
|
strcpy(dns1str, ipv6Str(profile->ipv6.DnsPrimary));
|
|
}
|
|
|
|
if (profile->ipv6.DnsSecondary[0]) {
|
|
strcpy(dns2str, ipv6Str(profile->ipv6.DnsSecondary));
|
|
}
|
|
|
|
update_resolv_conf(6, ifname, profile->ipv6.DnsPrimary[0] ? dns1str : NULL,
|
|
profile->ipv6.DnsSecondary[0] != '\0' ? dns2str : NULL);
|
|
}
|
|
|
|
#ifdef QL_OPENWER_NETWORK_SETUP
|
|
ql_openwrt_setup_wan6(ifname, &profile->ipv6);
|
|
#endif
|
|
#else
|
|
#ifdef USE_DHCLIENT
|
|
snprintf(udhcpc_cmd, sizeof(udhcpc_cmd), "dhclient -6 -d --no-pid %s", ifname);
|
|
dhclient_alive++;
|
|
#else
|
|
/*
|
|
DHCPv6: Dibbler - a portable DHCPv6
|
|
1. download from http://klub.com.pl/dhcpv6/
|
|
2. cross-compile
|
|
2.1 ./configure --host=arm-linux-gnueabihf
|
|
2.2 copy dibbler-client to your board
|
|
3. mkdir -p /var/log/dibbler/ /var/lib/ on your board
|
|
4. create /etc/dibbler/client.conf on your board, the content is
|
|
log-mode short
|
|
log-level 7
|
|
iface wwan0 {
|
|
ia
|
|
option dns-server
|
|
}
|
|
5. run "dibbler-client start" to get ipV6 address
|
|
6. run "route -A inet6 add default dev wwan0" to add default route
|
|
*/
|
|
snprintf(shell_cmd, sizeof(shell_cmd), "route -A inet6 add default %s", ifname);
|
|
ql_system(shell_cmd);
|
|
snprintf(udhcpc_cmd, sizeof(udhcpc_cmd), "dibbler-client run");
|
|
dibbler_client_alive++;
|
|
#endif
|
|
|
|
pthread_create(&udhcpc_thread_id, &udhcpc_thread_attr, udhcpc_thread_function, (void*)strdup(udhcpc_cmd));
|
|
#endif
|
|
}
|
|
}
|
|
|
|
void udhcpc_stop(PROFILE_T *profile) {
|
|
char *ifname = profile->usbnet_adapter;
|
|
char shell_cmd[128];
|
|
|
|
ql_set_driver_link_state(profile, 0);
|
|
|
|
if (profile->qmapnet_adapter[0]) {
|
|
ifname = profile->qmapnet_adapter;
|
|
}
|
|
|
|
#ifdef USE_DHCLIENT
|
|
if (dhclient_alive) {
|
|
system("killall dhclient");
|
|
dhclient_alive = 0;
|
|
}
|
|
#endif
|
|
if (dibbler_client_alive) {
|
|
if (system("killall dibbler-client")) {};
|
|
dibbler_client_alive = 0;
|
|
}
|
|
|
|
profile->udhcpc_ip = 0;
|
|
//it seems when call netif_carrier_on(), and netcard 's IP is "0.0.0.0", will cause netif_queue_stopped()
|
|
if (!access("/sbin/ip", X_OK))
|
|
snprintf(shell_cmd, sizeof(shell_cmd), "ip addr flush dev %s", ifname);
|
|
else
|
|
snprintf(shell_cmd, sizeof(shell_cmd), "ifconfig %s 0.0.0.0", ifname);
|
|
ql_system(shell_cmd);
|
|
ifc_set_state(ifname, 0);
|
|
|
|
#ifdef QL_OPENWER_NETWORK_SETUP
|
|
ql_openwrt_setup_wan(ifname, NULL);
|
|
ql_openwrt_setup_wan6(ifname, NULL);
|
|
#endif
|
|
}
|