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services.c
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services.c
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/*
* Miscellaneous services
*
* Copyright (C) 2009, Broadcom Corporation. All Rights Reserved.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* $Id: services.c,v 1.100 2010/03/04 09:39:18 Exp $
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <signal.h>
#include <unistd.h>
#include <errno.h>
#include <sys/time.h>
#include <time.h>
#include <bcmnvram.h>
#include <shutils.h>
#include <dirent.h>
#include <sys/mount.h>
#include <sys/vfs.h>
#include <rc.h>
#include <semaphore_mfp.h>
#include <arpa/inet.h>
#include <time.h>
#include <sys/time.h>
#include <sys/reboot.h>
#include <errno.h>
#ifdef RTCONFIG_RALINK
#include <ralink.h>
#endif
#define sin_addr(s) (((struct sockaddr_in *)(s))->sin_addr)
// Pop an alarm to recheck pids in 500 msec.
static const struct itimerval pop_tv = { {0,0}, {0, 500 * 1000} };
// Pop an alarm to reap zombies.
static const struct itimerval zombie_tv = { {0,0}, {307, 0} };
// -----------------------------------------------------------------------------
static const char dmhosts[] = "/etc/hosts.dnsmasq";
#ifndef OVERWRITE_DNS
static const char dmresolv[] = "/etc/resolv.conf";
#else
static const char dmresolv[] = "/tmp/resolv.conf";
#endif
static pid_t pid_dnsmasq = -1;
#ifdef BCMDBG
#include <assert.h>
#else
#define assert(a)
#endif
#define logs(s) syslog(LOG_NOTICE, s)
static char
*make_var(char *prefix, int index, char *name)
{
static char buf[100];
assert(prefix);
assert(name);
if (index)
snprintf(buf, sizeof(buf), "%s%d%s", prefix, index, name);
else
snprintf(buf, sizeof(buf), "%s%s", prefix, name);
return buf;
}
static int is_wet(int idx, int unit, int subunit, void *param)
{
return nvram_match(wl_nvname("mode", unit, subunit), "wet");
}
void create_passwd(void)
{
char s[512];
char *p;
char salt[32];
FILE *f;
mode_t m;
char *http_user;
#ifdef RTCONFIG_SAMBASRV //!!TB
char *smbd_user;
create_custom_passwd();
#endif
strcpy(salt, "$1$");
f_read("/dev/urandom", s, 6);
base64_encode(s, salt + 3, 6);
salt[3 + 8] = 0;
p = salt;
while (*p) {
if (*p == '+') *p = '.';
++p;
}
if (((p = nvram_get("http_passwd")) == NULL) || (*p == 0)) p = "admin";
if (((http_user = nvram_get("http_username")) == NULL) || (*http_user == 0)) http_user = "admin";
#ifdef RTCONFIG_SAMBASRV //!!TB
if (((smbd_user = nvram_get("smbd_user")) == NULL) || (*smbd_user == 0) || !strcmp(smbd_user, "root"))
smbd_user = "nas";
#endif
m = umask(0777);
if ((f = fopen("/etc/shadow", "w")) != NULL) {
p = crypt(p, salt);
fprintf(f, "%s:%s:0:0:99999:7:0:0:\n"
"nobody:*:0:0:99999:7:0:0:\n", http_user, p);
#ifdef RTCONFIG_SAMBASRV //!!TB
fprintf(f, "%s:*:0:0:99999:7:0:0:\n", smbd_user);
#endif
fappend(f, "/etc/shadow.custom");
fclose(f);
}
umask(m);
chmod("/etc/shadow", 0600);
#ifdef RTCONFIG_SAMBASRV //!!TB
sprintf(s,
"%s:x:0:0:%s:/root:/bin/sh\n"
"%s:x:100:100:nas:/dev/null:/dev/null\n"
"nobody:x:65534:65534:nobody:/dev/null:/dev/null\n",
http_user,
http_user,
smbd_user);
#else //!!TB
sprintf(s,
"%s:x:0:0:%s:/root:/bin/sh\n"
"nobody:x:65534:65534:nobody:/dev/null:/dev/null\n",
http_user,
http_user);
#endif //!!TB
f_write_string("/etc/passwd", s, 0, 0644);
fappend_file("/etc/passwd", "/etc/passwd.custom");
sprintf(s,
"%s:*:0:\n"
#ifdef RTCONFIG_SAMBASRV //!!TB
"nas:*:100:\n"
#endif
"nobody:*:65534:\n",
http_user);
f_write_string("/etc/gshadow", s, 0, 0644);
fappend_file("/etc/gshadow", "/etc/gshadow.custom");
f_write_string("/etc/group",
"root:x:0:\n"
#ifdef RTCONFIG_SAMBASRV //!!TB
"nas:x:100:\n"
#endif
"nobody:x:65534:\n",
0, 0644);
fappend_file("/etc/group", "/etc/group.custom");
}
void start_dnsmasq()
{
FILE *f;
const char *nv;
char buf[512];
char lan[24];
const char *router_ip;
const char *lan_ifname;
char sdhcp_lease[32];
char *e;
int n;
char *mac, *ip, *name;
char *p;
int ipn;
char ipbuf[32];
FILE *hf;
int dhcp_start;
int dhcp_count;
int dhcp_lease;
int do_dhcpd;
int do_dns;
FILE *fp;
char tmp1[32], tmp2[32], prefix[] = "wanXXXXXXXXXX_";
TRACE_PT("begin\n");
if (getpid() != 1) {
notify_rc("start_dnsmasq");
return;
}
if(!is_routing_enabled()
#ifdef RTCONFIG_WIRELESSREPEATER
&& nvram_get_int("sw_mode")!=SW_MODE_REPEATER
#endif
) return;
int unit = wan_primary_ifunit();
snprintf(prefix, sizeof(prefix), "wan%d_", unit);
// we still need dnsmasq in wet
//if (foreach_wif(1, NULL, is_wet)) return;
if ((f = fopen("/etc/dnsmasq.conf", "w")) == NULL) return;
lan_ifname = nvram_safe_get("lan_ifname");
router_ip = nvram_safe_get("lan_ipaddr");
strlcpy(lan, router_ip, sizeof(lan));
if ((p = strrchr(lan, '.')) != NULL) *(p + 1) = 0;
fprintf(f, "pid-file=/var/run/dnsmasq.pid\n");
if (((nv = nvram_get("wan_domain")) != NULL) || ((nv = nvram_get("wan_get_domain")) != NULL)) {
if (*nv) fprintf(f, "domain=%s\n", nv);
}
// dns
const dns_list_t *dns = get_dns(); // this always points to a static buffer
if (((nv = nvram_get("dns_minport")) != NULL) && (*nv)) n = atoi(nv);
else n = 4096;
fprintf(f,
"resolv-file=%s\n" // the real stuff is here
"expand-hosts\n" // expand hostnames in hosts file
"min-port=%u\n", // min port used for random src port
dmresolv, n);
for (n = 0 ; n < dns->count; ++n) {
if (dns->dns[n].port != 53) {
fprintf(f, "server=%s#%u\n", inet_ntoa(dns->dns[n].addr), dns->dns[n].port);
}
}
eval("touch", "/tmp/resolv.conf");
chmod("/tmp/resolv.conf", 0666);
#ifndef OVERWRITE_DNS
unlink("/etc/resolv.conf");
symlink("/tmp/resolv.conf", "/etc/resolv.conf");
#endif
if(is_routing_enabled())
do_dhcpd = nvram_get_int("dhcp_enable_x");
#ifdef RTCONFIG_WIRELESSREPEATER
else if(nvram_get_int("sw_mode")==SW_MODE_REPEATER && nvram_get_int("wlc_mode")==0)
do_dhcpd=1;
#endif
else do_dhcpd=0;
if (do_dhcpd) {
dhcp_lease = nvram_get_int("dhcp_lease");
if (dhcp_lease <= 0) dhcp_lease = 86400;
if ((e = nvram_get("dhcpd_slt")) != NULL) n = atoi(e); else n = 0;
if (n < 0) strcpy(sdhcp_lease, "infinite");
else sprintf(sdhcp_lease, "%d", (n > 0) ? n : dhcp_lease);
if ((p = nvram_get("dhcp_start")) && (*p) && (e = nvram_get("dhcp_end")) && (*e)) {
fprintf(f, "dhcp-range=%s,%s,%s,%ds\n", p, e, nvram_safe_get("lan_netmask"), dhcp_lease);
}
else {
// for compatibility
dhcp_start = nvram_get_int("dhcp_start");
dhcp_count = nvram_get_int("dhcp_num");
fprintf(f, "dhcp-range=%s%d,%s%d,%s,%ds\n",
lan, dhcp_start, lan, dhcp_start + dhcp_count - 1, nvram_safe_get("lan_netmask"), dhcp_lease);
}
n = nvram_get_int("dhcpd_lmax");
fprintf(f,"dhcp-lease-max=%d\n", (n > 0) ? n : 255);
if (nvram_get_int("dhcpd_auth") >= 0) {
fprintf(f, "dhcp-authoritative\n");
}
if (((nv = nvram_get("dhcp_gateway_x")) != NULL) && (*nv) && (strcmp(nv, "0.0.0.0") != 0)) {
fprintf(f, "dhcp-option=3,%s\n", nv);
}
else {
fprintf(f, "dhcp-option=3, %s\n", router_ip);
}
if (((nv = nvram_get("dhcp_dns1_x")) != NULL) && (*nv) && (strcmp(nv, "0.0.0.0") != 0)) {
fprintf(f, "dhcp-option=6,%s\n", nv);
}
if (((nv = nvram_get("lan_domain")) != NULL) && (*nv) && (strcmp(nv, "0.0.0.0") != 0)) {
fprintf(f, "dhcp-option=15,%s\n", nv);
}
if (((nv = nvram_get("dhcp_wins_x")) != NULL) && (*nv) && (strcmp(nv, "0.0.0.0") != 0)) {
fprintf(f, "dhcp-option=44,%s\n", nv);
}
#ifdef RTCONFIG_SAMBASRV
else if (nvram_get_int("smbd_enable") && nvram_invmatch("lan_domain", "") && nvram_get_int("smbd_wins")) {
if ((nv == NULL) || (*nv == 0) || (strcmp(nv, "0.0.0.0") == 0)) {
// Samba will serve as a WINS server
fprintf(f, "dhcp-option=44,0.0.0.0\n");
}
}
#endif
}
else {
fprintf(f, "no-dhcp-interface=%s\n", lan_ifname);
}
//static IP MAC binding
if (nvram_match("dhcp_static_x","1"))
{
fprintf(f,"read-ethers\n");
write_static_leases("/etc/ethers");
}
#ifdef RTCONFIG_OPENVPN
write_vpn_dnsmasq_config(f);
#endif
fclose(f);
//write hosts
if (!(fp = fopen("/etc/hosts", "w")))
{
perror("/etc/hosts");
return;
}
fprintf(fp, "127.0.0.1 localhost.localdomain localhost\n");
fprintf(fp, "%s www.asusnetwork.net\n", nvram_safe_get("lan_ipaddr"));
if (strcmp(nvram_safe_get("productid"), nvram_safe_get("computer_name")) && is_valid_hostname(nvram_safe_get("computer_name")))
fprintf(fp, "%s %s\n", nvram_safe_get("lan_ipaddr"), nvram_safe_get("computer_name"));
if (nvram_invmatch("lan_hostname", ""))
{
fprintf(fp, "%s %s.%s %s\n", nvram_safe_get("lan_ipaddr"),
nvram_safe_get("lan_hostname"),
nvram_safe_get("lan_domain"),
nvram_safe_get("lan_hostname"));
}
#ifdef RTCONFIG_IPV6
const char *s;
if (ipv6_enabled()) {
fprintf(fp, "::1 localhost6.localdomain6 localhost6\n");
s = ipv6_router_address(NULL);
if (*s) fprintf(fp, "%s %s\n", s, nvram_safe_get("lan_hostname"));
}
#endif
fclose(fp);
// Default to some values we like, but allow the user to override them.
eval("dnsmasq", "-c", "1500", "--log-async", "-n");
if (!nvram_contains_word("debug_norestart", "dnsmasq")) {
pid_dnsmasq = -2;
}
TRACE_PT("end\n");
}
void stop_dnsmasq(void)
{
TRACE_PT("begin\n");
if (getpid() != 1) {
notify_rc("dnsmasq");
return;
}
pid_dnsmasq = -1;
killall_tk("dnsmasq");
TRACE_PT("end\n");
}
void restart_dnsmasq(void)
{
stop_dnsmasq();
start_dnsmasq();
}
void clear_resolv(void)
{
f_write(dmresolv, NULL, 0, 0, 0); // blank
}
#ifdef RTCONFIG_IPV6
int write_ipv6_dns_servers(FILE *f, const char *prefix, char *dns, const char *suffix, int once)
{
char p[INET6_ADDRSTRLEN + 1], *next = NULL;
struct in6_addr addr;
int cnt = 0;
foreach(p, dns, next) {
// verify that this is a valid IPv6 address
if (inet_pton(AF_INET6, p, &addr) == 1) {
fprintf(f, "%s%s%s", (once && cnt) ? "" : prefix, p, suffix);
++cnt;
}
}
return cnt;
}
#endif
#if 0
void dns_to_resolv(void)
{
FILE *f;
const dns_list_t *dns;
int i;
mode_t m;
m = umask(022); // 077 from pppoecd
if ((f = fopen(dmresolv, "w")) != NULL) {
// Check for VPN DNS entries
if (!write_vpn_resolv(f)) {
#ifdef RTCONFIG_IPV6
if (ipv6_enabled()) {
int ii;
char nvname[64];
char *ptr;
char ipv6_dns_str[1024];
for (ii = 0; ii < 3; ii++)
{
memset(nvname, 0x0, sizeof(nvname));
sprintf(nvname, "ipv6_dns%d", ii+1);
ptr = nvram_get(nvname);
if (ptr && *ptr && strcmp(ptr, "0.0.0.0"))
{
if (!ii)
sprintf(ipv6_dns_str, "%s", ptr);
else
sprintf(ipv6_dns_str + strlen(ipv6_dns_str), "%s%s", strlen(ipv6_dns_str) ? " " : "", ptr);
}
}
if ((get_ipv6_service() == IPV6_NATIVE_DHCP) && nvram_match("ipv6_dnsenable", "1"))
write_ipv6_dns_servers(f, "nameserver ", nvram_safe_get("ipv6_get_dns"), "\n", 0);
else
write_ipv6_dns_servers(f, "nameserver ", ipv6_dns_str, "\n", 0);
}
#endif
dns = get_dns(); // static buffer
if (dns->count == 0) {
// Put a pseudo DNS IP to trigger Connect On Demand
}
else {
for (i = 0; i < dns->count; i++) {
if (dns->dns[i].port == 53) { // resolv.conf doesn't allow for an alternate port
fprintf(f, "nameserver %s\n", inet_ntoa(dns->dns[i].addr));
}
}
}
}
fclose(f);
}
umask(m);
}
#endif
// -----------------------------------------------------------------------------
#ifdef RTCONFIG_IPV6
static void add_ip6_lanaddr(void)
{
char ip[INET6_ADDRSTRLEN + 4];
const char *p;
p = ipv6_router_address(NULL);
if (*p) {
if (nvram_match("ipv6_rtr_addr", "")) nvram_set("ipv6_rtr_addr", p);
snprintf(ip, sizeof(ip), "%s/%d", p, nvram_get_int("ipv6_prefix_length") ? : 64);
eval("ip", "-6", "addr", "add", ip, "dev", nvram_safe_get("lan_ifname"));
}
}
void start_ipv6_tunnel(void)
{
char ip[INET6_ADDRSTRLEN + 4];
struct in_addr addr4;
struct in6_addr addr;
const char *wanip, *mtu, *tun_dev;
int service;
int prefixlen;
// for one wan only now
service = get_ipv6_service();
tun_dev = get_wan6face();
wanip = get_wanip();
mtu = (nvram_get_int("ipv6_tun_mtu") > 0) ? nvram_safe_get("ipv6_tun_mtu") : "1480";
modprobe("sit");
if (service == IPV6_6TO4)
strlcpy(ip, (char *)nvram_safe_get("ipv6_relay"), sizeof(ip));
else if (service == IPV6_6RD) {
update_6rd_info();
strlcpy(ip, (char *)nvram_safe_get("ipv6_6rd_router"), sizeof(ip));
}
else
strlcpy(ip, (char *)nvram_safe_get("ipv6_tun_v4end"), sizeof(ip));
if ((service == IPV6_6RD) && nvram_match("ipv6_6rd_dhcp", "0"))
eval("ip", "tunnel", "add", (char *)tun_dev, "mode", "sit",
"remote", "any",
"local", (char *)wanip,
"ttl", nvram_safe_get("ipv6_tun_ttl"));
else
eval("ip", "tunnel", "add", (char *)tun_dev, "mode", "sit",
"remote", ip,
"local", (char *)wanip,
"ttl", nvram_safe_get("ipv6_tun_ttl"));
eval("ip", "link", "set", (char *)tun_dev, "mtu", (char *)mtu, "up");
nvram_set("ipv6_ifname", (char *)tun_dev);
if (service == IPV6_6TO4) {
add_ip6_lanaddr();
addr4.s_addr = 0;
memset(&addr, 0, sizeof(addr));
inet_aton(wanip, &addr4);
addr.s6_addr16[0] = htons(0x2002);
ipv6_mapaddr4(&addr, 16, &addr4, 0);
addr.s6_addr16[7] = htons(0x0001);
inet_ntop(AF_INET6, &addr, ip, sizeof(ip));
strncat(ip, "/16", sizeof(ip));
}
else if (service == IPV6_6RD) {
add_ip6_lanaddr();
addr4.s_addr = 0;
memset(&addr, 0, sizeof(addr));
inet_aton(wanip, &addr4);
#if 0
addr.s6_addr16[0] = htons(0x2001);
addr.s6_addr16[1] = htons(0x55c);
#else
inet_pton(AF_INET6, nvram_safe_get("ipv6_6rd_prefix"), &addr);
#endif
prefixlen = nvram_get_int("ipv6_prefix_length");
ipv6_mapaddr4(&addr, prefixlen, &addr4, nvram_get_int("ipv6_6rd_ip4size"));
addr.s6_addr16[7] = htons(0x0001);
inet_ntop(AF_INET6, &addr, ip, sizeof(ip));
snprintf(ip, sizeof(ip), "%s/%d", ip, prefixlen);
}
else {
snprintf(ip, sizeof(ip), "%s/%d",
nvram_safe_get("ipv6_tun_addr"),
nvram_get_int("ipv6_tun_addrlen") ? : 64);
}
eval("ip", "addr", "add", ip, "dev", (char *)tun_dev);
eval("ip", "route", "add", "::/0", "dev", (char *)tun_dev);
}
void stop_ipv6_tunnel(void)
{
int service = get_ipv6_service();
if (service == IPV6_6TO4 || service == IPV6_6RD || service == IPV6_6IN4) {
eval("ip", "tunnel", "del", (char *)get_wan6face());
}
if (service == IPV6_6TO4 || service == IPV6_6RD) {
// get rid of old IPv6 address from lan iface
eval("ip", "-6", "addr", "flush", "dev", nvram_safe_get("lan_ifname"), "scope", "global");
nvram_set("ipv6_rtr_addr", "");
nvram_set("ipv6_prefix", "");
}
modprobe_r("sit");
}
void start_dhcp6s(void)
{
FILE *f;
char *prefix;
char *argv[] = { "dhcp6s", "-c", "/etc/dhcp6s.conf", nvram_safe_get("lan_ifname"), NULL, NULL };
int pid, argc, service;
if (getpid() != 1) {
notify_rc("start_dhcp6s");
return;
}
if (ipv6_enabled()) {
// Create dhcp6s.conf
if ((f = fopen("/etc/dhcp6s.conf", "w")) == NULL) return;
fprintf(f, "option domain-name-servers %s;\n",
getifaddr(nvram_safe_get("lan_ifname"), AF_INET6, 1) ? : "");
fclose(f);
argc = 4;
if (nvram_get_int("ipv6_debug")) {
argv[argc++] = "-dD";
}
argv[argc] = NULL;
_eval(argv, NULL, 0, &pid);
}
}
static pid_t pid_radvd = -1;
void start_radvd(void)
{
FILE *f;
char *prefix, *ip, *mtu;
int do_dns, do_6to4, do_6rd;
char *argv[] = { "radvd", NULL, NULL, NULL };
int pid, argc, service, cnt;
if (getpid() != 1) {
notify_rc("start_radvd");
return;
}
stop_radvd();
stop_dhcp6s();
start_dhcp6s();
if (ipv6_enabled() && nvram_get_int("ipv6_radvd")) {
service = get_ipv6_service();
do_6to4 = (service == IPV6_6TO4);
do_6rd = (service == IPV6_6RD);
mtu = NULL;
switch (service) {
#if 0
case IPV6_NATIVE_DHCP:
prefix = "::";
break;
#endif
case IPV6_6TO4:
case IPV6_6IN4:
case IPV6_6RD:
mtu = (nvram_get_int("ipv6_tun_mtu") > 0) ? nvram_safe_get("ipv6_tun_mtu") : "1480";
// fall through
default:
prefix = do_6to4 | do_6rd ? "0:0:0:1::" : nvram_safe_get("ipv6_prefix");
break;
}
if (!(*prefix)) prefix = "::";
// Create radvd.conf
if ((f = fopen("/etc/radvd.conf", "w")) == NULL) return;
ip = (char *)ipv6_router_address(NULL);
do_dns = (*ip) /*&& nvram_match("dhcpd_dmdns", "1")*/;
fprintf(f,
"interface %s\n"
"{\n"
" IgnoreIfMissing on;\n"
" AdvSendAdvert on;\n"
#if 1
" MinRtrAdvInterval 3;\n"
" MaxRtrAdvInterval 10;\n"
#else
" MaxRtrAdvInterval 60;\n"
#endif
" AdvHomeAgentFlag off;\n"
" AdvManagedFlag off;\n"
" AdvOtherConfigFlag %s;\n"
"%s%s%s"
" prefix %s/64 \n"
" {\n"
" AdvOnLink on;\n"
" AdvAutonomous on;\n"
"%s"
"%s%s%s"
" };\n",
nvram_safe_get("lan_ifname"),
#if 0
(get_ipv6_service() != IPV6_NATIVE) && (get_ipv6_service() != IPV6_NATIVE_DHCP) ? "on" : "off",
#else
"on",
#endif
mtu ? " AdvLinkMTU " : "", mtu ? : "", mtu ? ";\n" : "",
prefix,
do_6to4 | do_6rd ? " AdvValidLifetime 300;\n AdvPreferredLifetime 120;\n" : "",
do_6to4 | do_6rd ? " Base6to4Interface " : "",
do_6to4 | do_6rd ? get_wanface() : "",
do_6to4 | do_6rd ? ";\n" : "");
if (do_dns) {
fprintf(f, " RDNSS %s {};\n", ip);
}
else {
int ii;
char nvname[64];
char *ptr;
char ipv6_dns_str[1024];
for (ii = 0; ii < 3; ii++)
{
memset(nvname, 0x0, sizeof(nvname));
sprintf(nvname, "ipv6_dns%d", ii+1);
ptr = nvram_get(nvname);
if (ptr && *ptr && strcmp(ptr, "0.0.0.0"))
{
if (!ii)
sprintf(ipv6_dns_str, "%s", ptr);
else
sprintf(ipv6_dns_str + strlen(ipv6_dns_str), "%s%s", strlen(ipv6_dns_str) ? " " : "", ptr);
}
}
if ((get_ipv6_service() == IPV6_NATIVE_DHCP) && nvram_match("ipv6_dnsenable", "1"))
cnt = write_ipv6_dns_servers(f, (cnt) ? "" : " RDNSS ", nvram_safe_get("ipv6_get_dns"), " ", 1);
else
cnt = write_ipv6_dns_servers(f, " RDNSS ", ipv6_dns_str, "\n", 1);
if (cnt) fprintf(f, "{};\n");
}
fprintf(f,
"};\n"); // close "interface" section
fclose(f);
chmod("/etc/radvd.conf", 0400);
f_write_string("/proc/sys/net/ipv6/conf/all/forwarding", "1", 0, 0);
// Start radvd
argc = 1;
if (nvram_get_int("ipv6_debug")) {
argv[argc++] = "-u";
argv[argc++] = "admin";
argv[argc++] = "-d";
argv[argc++] = "5";
}
argv[argc] = NULL;
_eval(argv, NULL, 0, &pid);
if (!nvram_contains_word("debug_norestart", "radvd")) {
pid_radvd = -2;
}
}
}
void stop_radvd(void)
{
if (getpid() != 1) {
notify_rc("stop_radvd");
return;
}
stop_dhcp6s();
pid_radvd = -1;
killall_tk("radvd");
f_write_string("/proc/sys/net/ipv6/conf/all/forwarding", "0", 0, 0);
}
void stop_dhcp6s(void)
{
if (getpid() != 1) {
notify_rc("stop_dhcp6s");
return;
}
killall_tk("dhcp6s");
}
void start_ipv6(void)
{
int service;
service = get_ipv6_service();
if (service != IPV6_DISABLED)
doSystem("echo 86400 > /proc/sys/net/ipv6/neigh/%s/gc_stale_time", nvram_safe_get("lan_ifname"));
// Check if turned on
switch (service) {
case IPV6_6IN4:
nvram_set("ipv6_rtr_addr", "");
case IPV6_NATIVE:
case IPV6_MANUAL:
add_ip6_lanaddr();
break;
case IPV6_NATIVE_DHCP:
case IPV6_6TO4:
case IPV6_6RD:
default:
nvram_set("ipv6_rtr_addr", "");
nvram_set("ipv6_prefix", "");
break;
}
}
void stop_ipv6(void)
{
stop_ipv6_tunnel();
stop_dhcp6c();
eval("ip", "-6", "addr", "flush", "scope", "global");
eval("ip", "-6", "route", "flush", "scope", "all");
eval("ip", "-6", "neigh", "flush", "dev", nvram_safe_get("lan_ifname"));
}
#endif
// -----------------------------------------------------------------------------
int
wl_wpsPincheck(char *pin_string)
{
unsigned long PIN = strtoul(pin_string, NULL, 10);
unsigned long int accum = 0;
unsigned int len = strlen(pin_string);
if (len != 4 && len != 8)
return -1;
if (len == 8) {
accum += 3 * ((PIN / 10000000) % 10);
accum += 1 * ((PIN / 1000000) % 10);
accum += 3 * ((PIN / 100000) % 10);
accum += 1 * ((PIN / 10000) % 10);
accum += 3 * ((PIN / 1000) % 10);
accum += 1 * ((PIN / 100) % 10);
accum += 3 * ((PIN / 10) % 10);
accum += 1 * ((PIN / 1) % 10);
if (0 == (accum % 10))
return 0;
}
else if (len == 4)
return 0;
return -1;
}
int
start_wps_pbc(int unit)
{
if (!no_need_to_start_wps() && nvram_match("wps_enable", "0"))
{
nvram_set("wps_enable", "1");
#ifdef CONFIG_BCMWL5
restart_wireless();
#else
stop_wps();
start_wps();
#endif
}
nvram_set_int("wps_band", unit);
nvram_set("wps_sta_pin", "00000000");
return start_wps_method();
}
int
start_wps_pin(int unit)
{
if(!strlen(nvram_safe_get("wps_sta_pin"))) return 0;
if (wl_wpsPincheck(nvram_safe_get("wps_sta_pin"))) return 0;
nvram_set_int("wps_band", unit);
return start_wps_method();
}
extern int no_need_to_start_wps();
int
start_wps(void)
{
#ifdef RTCONFIG_WPS
#ifdef CONFIG_BCMWL5
char *wps_argv[] = {"/bin/wps_monitor", NULL};
pid_t pid;
#endif
nvram_set("wps_status", "0");
nvram_set("wps_method", "1");
nvram_set("wps_config_command", "0");
nvram_set("wps_proc_mac", "");
nvram_set("wps_sta_devname", "");
nvram_set("wps_sta_mac", "");
if (nvram_match("wps_restart", "1")) {
nvram_set("wps_restart", "0");
}
else {
nvram_set("wps_restart", "0");
nvram_set("wps_proc_status", "0");
}
nvram_set("wps_sta_pin", "00000000"); nvram_set("wps_currentband", "");
if (nvram_match("w_Setting", "1"))
nvram_set("lan_wps_oob", "disabled");
else
nvram_set("lan_wps_oob", "enabled");
#ifdef CONFIG_BCMWL5
killall_tk("wps_monitor");
killall_tk("wps_ap");
killall_tk("wps_enr");
unlink("/tmp/wps_monitor.pid");
#endif
if (!no_need_to_start_wps() && nvram_match("wps_enable", "1"))
{
#if 0
#ifdef CONFIG_BCMWL5
nvram_set("wl_wps_mode", "enabled");
nvram_set("wl0_wps_mode", "enabled");
nvram_set("wl1_wps_mode", "enabled");
#endif
#endif
#ifdef CONFIG_BCMWL5
_eval(wps_argv, NULL, 0, &pid);
#elif defined RTCONFIG_RALINK
start_wsc_pin_enrollee();
start_wpsfix();
if (f_exists("/var/run/watchdog.pid"))
{
doSystem("iwpriv %s set WatchdogPid=`cat %s`", WIF_2G, "/var/run/watchdog.pid");
doSystem("iwpriv %s set WatchdogPid=`cat %s`", WIF_5G, "/var/run/watchdog.pid");
}
#endif
}
#if 0
#ifdef CONFIG_BCMWL5
else
{
nvram_set("wl_wps_mode", "disabled");
nvram_set("wl0_wps_mode", "disabled");
nvram_set("wl1_wps_mode", "disabled");
}
#endif
#endif
// _eval(wps_argv, NULL, 0, &pid);
#else
/* if we don't support WPS, make sure we unset any remaining wl_wps_mode */
nvram_unset("wl_wps_mode");
#endif /* RTCONFIG_WPS */
return 0;
}
int
stop_wps(void)
{
int ret = 0;
#ifdef RTCONFIG_WPS
#ifdef CONFIG_BCMWL5
killall_tk("wps_monitor");
killall_tk("wps_ap");
#elif defined RTCONFIG_RALINK
stop_wpsfix();
stop_wsc();
#endif
#endif /* RTCONFIG_WPS */
return ret;
}
/* check for dual band case */
void
reset_wps(void)
{
#ifdef CONFIG_BCMWL5
// int unit;
// char prefix[]="wlXXXXXX_", tmp[100];
stop_wps_method();
stop_wps();
// snprintf(prefix, sizeof(prefix), "wl%s_", nvram_safe_get("wps_band"));
// nvram_set(strcat_r(prefix, "wps_config_state", tmp), "0");
nvram_set("w_Setting", "0");