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lede/package/wwan/app/quectel_cm_5G/src/udhcpc.c
coolsnowwolf 1dce308893 quectel-cm: update to version 1.6.5
2024-03-21 20:02:02 +08:00

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/******************************************************************************
@file udhcpc.c
@brief call DHCP tools to obtain IP address.
DESCRIPTION
Connectivity Management Tool for USB network adapter of Quectel wireless cellular modules.
INITIALIZATION AND SEQUENCING REQUIREMENTS
None.
---------------------------------------------------------------------------
Copyright (c) 2016 - 2023 Quectel Wireless Solution, Co., Ltd. All Rights Reserved.
Quectel Wireless Solution Proprietary and Confidential.
---------------------------------------------------------------------------
******************************************************************************/
#include <sys/socket.h>
#include <sys/select.h>
#include <sys/types.h>
#include <net/if.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <endian.h>
#include "util.h"
#include "QMIThread.h"
extern int ql_get_netcard_carrier_state(const char *devname);
static __inline in_addr_t qmi2addr(uint32_t __x) {
return (__x>>24) | (__x>>8&0xff00) | (__x<<8&0xff0000) | (__x<<24);
}
static int ql_system(const char *shell_cmd) {
dbg_time("%s", shell_cmd);
return system(shell_cmd);
}
static void ifc_init_ifr(const char *name, struct ifreq *ifr)
{
memset(ifr, 0, sizeof(struct ifreq));
no_trunc_strncpy(ifr->ifr_name, name, IFNAMSIZ);
ifr->ifr_name[IFNAMSIZ - 1] = 0;
}
static void ql_set_mtu(const char *ifname, int ifru_mtu) {
int inet_sock;
struct ifreq ifr;
inet_sock = socket(AF_INET, SOCK_DGRAM, 0);
if (inet_sock > 0) {
ifc_init_ifr(ifname, &ifr);
if (!ioctl(inet_sock, SIOCGIFMTU, &ifr)) {
if (ifr.ifr_ifru.ifru_mtu != ifru_mtu) {
dbg_time("change mtu %d -> %d", ifr.ifr_ifru.ifru_mtu , ifru_mtu);
ifr.ifr_ifru.ifru_mtu = ifru_mtu;
ioctl(inet_sock, SIOCSIFMTU, &ifr);
}
}
close(inet_sock);
}
}
static int ifc_get_addr(const char *name, in_addr_t *addr)
{
int inet_sock;
struct ifreq ifr;
int ret = 0;
inet_sock = socket(AF_INET, SOCK_DGRAM, 0);
ifc_init_ifr(name, &ifr);
if (addr != NULL) {
ret = ioctl(inet_sock, SIOCGIFADDR, &ifr);
if (ret < 0) {
*addr = 0;
} else {
*addr = ((struct sockaddr_in*) &ifr.ifr_addr)->sin_addr.s_addr;
}
}
close(inet_sock);
return ret;
}
static short ifc_get_flags(const char *ifname)
{
int inet_sock;
struct ifreq ifr;
int ret = 0;
inet_sock = socket(AF_INET, SOCK_DGRAM, 0);
if (inet_sock > 0) {
ifc_init_ifr(ifname, &ifr);
if (!ioctl(inet_sock, SIOCGIFFLAGS, &ifr)) {
ret = ifr.ifr_ifru.ifru_flags;
}
close(inet_sock);
}
return ret;
}
static void ifc_set_state(const char *ifname, int state) {
char shell_cmd[128];
if (!access("/sbin/ip", X_OK)) {
snprintf(shell_cmd, sizeof(shell_cmd), "ip link set dev %s %s", ifname, state ? "up" : "down");
} else {
snprintf(shell_cmd, sizeof(shell_cmd), "ifconfig %s %s", ifname, state ? "up" : "down");
}
ql_system(shell_cmd);
}
static int ql_netcard_ipv4_address_check(const char *ifname, in_addr_t ip) {
in_addr_t addr = 0;
ifc_get_addr(ifname, &addr);
return addr == ip;
}
static int ql_raw_ip_mode_check(const char *ifname, uint32_t ip) {
int fd;
char raw_ip[128];
char mode[2] = "X";
int mode_change = 0;
if (ql_netcard_ipv4_address_check(ifname, qmi2addr(ip)))
return 0;
snprintf(raw_ip, sizeof(raw_ip), "/sys/class/net/%s/qmi/raw_ip", ifname);
if (access(raw_ip, F_OK))
return 0;
fd = open(raw_ip, O_RDWR | O_NONBLOCK | O_NOCTTY);
if (fd < 0) {
dbg_time("%s %d fail to open(%s), errno:%d (%s)", __FILE__, __LINE__, raw_ip, errno, strerror(errno));
return 0;
}
if (read(fd, mode, 2) == -1) {};
if (mode[0] == '0' || mode[0] == 'N') {
dbg_time("File:%s Line:%d udhcpc fail to get ip address, try next:", __func__, __LINE__);
ifc_set_state(ifname, 0);
dbg_time("echo Y > /sys/class/net/%s/qmi/raw_ip", ifname);
mode[0] = 'Y';
if (write(fd, mode, 2) == -1) {};
mode_change = 1;
ifc_set_state(ifname, 1);
}
close(fd);
return mode_change;
}
static void* udhcpc_thread_function(void* arg) {
FILE * udhcpc_fp;
char *udhcpc_cmd = (char *)arg;
if (udhcpc_cmd == NULL)
return NULL;
dbg_time("%s", udhcpc_cmd);
udhcpc_fp = popen(udhcpc_cmd, "r");
free(udhcpc_cmd);
if (udhcpc_fp) {
char buf[0xff];
buf[sizeof(buf)-1] = '\0';
while((fgets(buf, sizeof(buf)-1, udhcpc_fp)) != NULL) {
if ((strlen(buf) > 1) && (buf[strlen(buf) - 1] == '\n'))
buf[strlen(buf) - 1] = '\0';
dbg_time("%s", buf);
}
pclose(udhcpc_fp);
}
return NULL;
}
//#define USE_DHCLIENT
#ifdef USE_DHCLIENT
static int dhclient_alive = 0;
#endif
static int dibbler_client_alive = 0;
void ql_set_driver_link_state(PROFILE_T *profile, int link_state) {
char link_file[128];
int fd;
int new_state = 0;
snprintf(link_file, sizeof(link_file), "/sys/class/net/%s/link_state", profile->usbnet_adapter);
fd = open(link_file, O_RDWR | O_NONBLOCK | O_NOCTTY);
if (fd == -1) {
if (errno != ENOENT)
dbg_time("Fail to access %s, errno: %d (%s)", link_file, errno, strerror(errno));
return;
}
if (profile->qmap_mode <= 1)
new_state = !!link_state;
else {
//0x80 means link off this pdp
new_state = (link_state ? 0x00 : 0x80) + (profile->muxid & 0x7F);
}
snprintf(link_file, sizeof(link_file), "%d\n", new_state);
if (write(fd, link_file, sizeof(link_file)) == -1) {};
if (link_state == 0 && profile->qmapnet_adapter[0]
&& strcmp(profile->qmapnet_adapter, profile->usbnet_adapter)) {
size_t rc;
lseek(fd, 0, SEEK_SET);
rc = read(fd, link_file, sizeof(link_file));
if (rc > 1 && (!strncasecmp(link_file, "0\n", 2) || !strncasecmp(link_file, "0x0\n", 4))) {
ifc_set_state(profile->usbnet_adapter, 0);
}
}
close(fd);
}
static const char *ipv4Str(const uint32_t Address) {
static char str[] = {"255.225.255.255"};
uint8_t *ip = (uint8_t *)&Address;
snprintf(str, sizeof(str), "%d.%d.%d.%d", ip[3], ip[2], ip[1], ip[0]);
return str;
}
static const char *ipv6Str(const UCHAR Address[16]) {
static char str[64];
uint16_t ip[8];
int i;
for (i = 0; i < 8; i++) {
ip[i] = (Address[i*2]<<8) + Address[i*2+1];
}
snprintf(str, sizeof(str), "%x:%x:%x:%x:%x:%x:%x:%x",
ip[0], ip[1], ip[2], ip[3], ip[4], ip[5], ip[6], ip[7]);
return str;
}
void update_ipv4_address(const char *ifname, const char *ip, const char *gw, unsigned prefix)
{
char shell_cmd[128];
if (!ifname)
return;
if (!access("/sbin/ip", X_OK)) {
snprintf(shell_cmd, sizeof(shell_cmd), "ip -%d address flush dev %s", 4, ifname);
ql_system(shell_cmd);
snprintf(shell_cmd, sizeof(shell_cmd), "ip -%d address add %s/%u dev %s", 4, ip, prefix, ifname);
ql_system(shell_cmd);
//ping6 www.qq.com
snprintf(shell_cmd, sizeof(shell_cmd), "ip -%d route add default via %s dev %s", 4, gw, ifname);
ql_system(shell_cmd);
} else {
unsigned n = (0xFFFFFFFF >> (32 - prefix)) << (32 - prefix);
// n = (n>>24) | (n>>8&0xff00) | (n<<8&0xff0000) | (n<<24);
snprintf(shell_cmd, sizeof(shell_cmd), "ifconfig %s %s netmask %s", ifname, ip, ipv4Str(n));
ql_system(shell_cmd);
//Resetting default routes
snprintf(shell_cmd, sizeof(shell_cmd), "route del default dev %s", ifname);
while(!system(shell_cmd));
snprintf(shell_cmd, sizeof(shell_cmd), "route add default gw %s dev %s", gw, ifname);
ql_system(shell_cmd);
}
}
void update_ipv6_address(const char *ifname, const char *ip, const char *gw, unsigned prefix) {
char shell_cmd[128];
(void)gw;
if (!access("/sbin/ip", X_OK)) {
snprintf(shell_cmd, sizeof(shell_cmd), "ip -%d address flush dev %s", 6, ifname);
ql_system(shell_cmd);
snprintf(shell_cmd, sizeof(shell_cmd), "ip -%d address add %s/%u dev %s", 6, ip, prefix, ifname);
ql_system(shell_cmd);
//ping6 www.qq.com
snprintf(shell_cmd, sizeof(shell_cmd), "ip -%d route add default dev %s", 6, ifname);
ql_system(shell_cmd);
} else {
snprintf(shell_cmd, sizeof(shell_cmd), "ifconfig %s %s/%d", ifname, ip, prefix);
ql_system(shell_cmd);
snprintf(shell_cmd, sizeof(shell_cmd), "route -A inet6 add default dev %s", ifname);
ql_system(shell_cmd);
}
}
static void update_ip_address_by_qmi(const char *ifname, const IPV4_T *ipv4, const IPV6_T *ipv6) {
char *d1, *d2;
if (ipv4 && ipv4->Address) {
d1 = strdup(ipv4Str(ipv4->Address));
d2 = strdup(ipv4Str(ipv4->Gateway));
unsigned prefix = 0;
unsigned n = 0;
for (n = 0; n < 32; n++) {
if (ipv4->SubnetMask&((unsigned)1<<n)) {
prefix++;
}
}
update_ipv4_address(ifname, d1, d2, prefix);
free(d1); free(d2);
//Adding DNS
if (ipv4->DnsPrimary) {
d1 = strdup(ipv4Str(ipv4->DnsPrimary));
d2 = strdup(ipv4Str(ipv4->DnsSecondary ? ipv4->DnsSecondary : ipv4->DnsPrimary));
update_resolv_conf(4, ifname, d1, d2);
free(d1); free(d2);
}
}
if (ipv6 && ipv6->Address[0] && ipv6->PrefixLengthIPAddr) {
d1 = strdup(ipv6Str(ipv6->Address));
d2 = strdup(ipv6Str(ipv6->Gateway));
update_ipv6_address(ifname, d1, d2, ipv6->PrefixLengthIPAddr);
free(d1); free(d2);
//Adding DNS
if (ipv6->DnsPrimary[0]) {
d1 = strdup(ipv6Str(ipv6->DnsPrimary));
d2 = strdup(ipv6Str(ipv6->DnsSecondary[0] ? ipv6->DnsSecondary : ipv6->DnsPrimary));
update_resolv_conf(6, ifname, d1, d2);
free(d1); free(d2);
}
}
}
//#define QL_OPENWER_NETWORK_SETUP
#ifdef QL_OPENWER_NETWORK_SETUP
static const char *openwrt_lan = "br-lan";
static const char *openwrt_wan = "wwan0";
static int ql_openwrt_system(const char *cmd) {
int i;
int ret = 1;
char shell_cmd[128];
snprintf(shell_cmd, sizeof(shell_cmd), "%s 2>1 > /dev/null", cmd);
for (i = 0; i < 15; i++) {
dbg_time("%s", cmd);
ret = system(shell_cmd);
if (!ret)
break;
sleep(1);
}
return ret;
}
static int ql_openwrt_is_wan(const char *ifname) {
if (openwrt_lan == NULL) {
system("uci show network.wan.ifname");
}
if (strcmp(ifname, openwrt_wan))
return 0;
return 1;
}
static void ql_openwrt_setup_wan(const char *ifname, const IPV4_T *ipv4) {
FILE *fp = NULL;
char config[64];
snprintf(config, sizeof(config), "/tmp/rmnet_%s_ipv4config", ifname);
if (ipv4 == NULL) {
if (ql_openwrt_is_wan(ifname))
ql_openwrt_system("ifdown wan");
return;
}
fp = fopen(config, "w");
if (fp == NULL)
return;
fprintf(fp, "IFNAME=\"%s\"\n", ifname);
fprintf(fp, "PUBLIC_IP=\"%s\"\n", ipv4Str(ipv4->Address));
fprintf(fp, "NETMASK=\"%s\"\n", ipv4Str(ipv4->SubnetMask));
fprintf(fp, "GATEWAY=\"%s\"\n", ipv4Str(ipv4->Gateway));
fprintf(fp, "DNSSERVERS=\"%s", ipv4Str(ipv4->DnsPrimary));
if (ipv4->DnsSecondary != 0)
fprintf(fp, " %s", ipv4Str(ipv4->DnsSecondary));
fprintf(fp, "\"\n");
fclose(fp);
if (!ql_openwrt_is_wan(ifname))
return;
ql_openwrt_system("ifup wan");
}
static void ql_openwrt_setup_wan6(const char *ifname, const IPV6_T *ipv6) {
FILE *fp = NULL;
char config[64];
int first_ifup;
snprintf(config, sizeof(config), "/tmp/rmnet_%s_ipv6config", ifname);
if (ipv6 == NULL) {
if (ql_openwrt_is_wan(ifname))
ql_openwrt_system("ifdown wan6");
return;
}
first_ifup = (access(config, F_OK) != 0);
fp = fopen(config, "w");
if (fp == NULL)
return;
fprintf(fp, "IFNAME=\"%s\"\n", ifname);
fprintf(fp, "PUBLIC_IP=\"%s\"\n", ipv6Str(ipv6->Address));
fprintf(fp, "NETMASK=\"%s\"\n", ipv6Str(ipv6->SubnetMask));
fprintf(fp, "GATEWAY=\"%s\"\n", ipv6Str(ipv6->Gateway));
fprintf(fp, "PrefixLength=\"%d\"\n", ipv6->PrefixLengthIPAddr);
fprintf(fp, "DNSSERVERS=\"%s", ipv6Str(ipv6->DnsPrimary));
if (ipv6->DnsSecondary[0])
fprintf(fp, " %s", ipv6Str(ipv6->DnsSecondary));
fprintf(fp, "\"\n");
fclose(fp);
if (!ql_openwrt_is_wan(ifname))
return;
if (first_ifup)
ql_openwrt_system("ifup wan6");
else
ql_openwrt_system("/etc/init.d/network restart"); //make PC to release old IPV6 address, and RS new IPV6 address
#if 1 //TODO? why need this?
if (openwrt_lan) {
int i;
char shell_cmd[128];
UCHAR Address[16] = {0};
ql_openwrt_system(("ifstatus lan"));
for (i = 0; i < (ipv6->PrefixLengthIPAddr/8); i++)
Address[i] = ipv6->Address[i];
snprintf(shell_cmd, sizeof(shell_cmd), "ip route del %s/%u dev %s", ipv6Str(Address), ipv6->PrefixLengthIPAddr, ifname);
ql_openwrt_system(shell_cmd);
snprintf(shell_cmd, sizeof(shell_cmd), "ip route add %s/%u dev %s", ipv6Str(Address), ipv6->PrefixLengthIPAddr, openwrt_lan);
ql_system(shell_cmd);
}
#endif
}
#endif
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
}
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