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make local option work

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This commit is contained in:
Nikos Mavrogiannopoulos
2013-01-30 17:18:00 +01:00
parent f4985166a9
commit e54667b71c
1 changed files with 33 additions and 11 deletions
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36
src/vpn.c
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@@ -303,22 +303,26 @@ finish:
tls_close(session);
}
static int get_remote_ip(int fd, int family,
/* if local is non zero it returns the local, otherwise the remote */
static int get_ip(int fd, int family, unsigned int local,
struct vpn_st* vinfo, char** buffer, size_t* buffer_size)
{
unsigned char *ptr;
const char* p;
struct ifreq ifr;
unsigned int i;
unsigned int i, flags;
int ret;
/* get netmask */
memset(&ifr, 0, sizeof(ifr));
ifr.ifr_addr.sa_family = family;
snprintf(ifr.ifr_name, IFNAMSIZ, "%s", vinfo->name);
/* local: SIOCGIFADDR */
ret = ioctl(fd, SIOCGIFDSTADDR, &ifr);
if (local != 0)
flags = SIOCGIFDSTADDR;
else
flags = SIOCGIFADDR;
ret = ioctl(fd, flags, &ifr);
if (ret != 0) {
goto fail;
}
@@ -376,21 +380,39 @@ const char* p;
if (fd == -1)
return -1;
ret = get_remote_ip(fd, AF_INET6, vinfo, &buffer, &buffer_size);
/* get the remote IPs */
ret = get_ip(fd, AF_INET6, 0, vinfo, &buffer, &buffer_size);
if (ret < 0)
oclog(ws, LOG_INFO, "Cannot obtain IPv6 IP for %s\n", vinfo->name);
ret = get_remote_ip(fd, AF_INET, vinfo, &buffer, &buffer_size);
ret = get_ip(fd, AF_INET, 0, vinfo, &buffer, &buffer_size);
if (ret < 0)
oclog(ws, LOG_INFO, "Cannot obtain IPv4 IP for %s\n", vinfo->name);
/* get the local IPs */
ret = get_ip(fd, AF_INET6, 1, vinfo, &buffer, &buffer_size);
if (ret < 0)
oclog(ws, LOG_INFO, "Cannot obtain IPv6 local IP for %s\n", vinfo->name);
ret = get_ip(fd, AF_INET, 1, vinfo, &buffer, &buffer_size);
if (ret < 0)
oclog(ws, LOG_INFO, "Cannot obtain IPv4 local IP for %s\n", vinfo->name);
if (vinfo->ipv4 == NULL && vinfo->ipv6 == NULL) {
ret = -1;
goto fail;
}
if (strcmp(vinfo->ipv4_dns, "local") == 0)
vinfo->ipv4_dns = vinfo->ipv4_local;
else
vinfo->ipv4_dns = ws->config->network.ipv4_dns;
if (strcmp(vinfo->ipv6_dns, "local") == 0)
vinfo->ipv6_dns = vinfo->ipv6_local;
else
vinfo->ipv6_dns = ws->config->network.ipv6_dns;
vinfo->routes_size = ws->config->network.routes_size;
memcpy(vinfo->routes, ws->config->network.routes, sizeof(vinfo->routes));