int main()
{
int i;
struct nlif_handle *h;
h = nlif_open();
if (h == NULL) {
perror("nlif_open");
exit(EXIT_FAILURE);
}
nlif_query(h);
for (i=0; i<64; i++) {
char name[IFNAMSIZ];
unsigned int flags;
if (nlif_index2name(h, i, name) == -1)
continue;
if (nlif_get_ifflags(h, i, &flags) == -1)
continue;
printf("index (%d) is %s (%s)\n", i, name,
flags & IFF_RUNNING ? "RUNNING" : "NOT RUNNING");
}
nlif_close(h);
}
bool NetherNetlink::initialize()
{
nfqHandle = nfq_open();
if(!nfqHandle)
{
LOGE("Error during nfq_open()");
return (false);
}
if(nfq_unbind_pf(nfqHandle, AF_INET) < 0)
{
LOGE("Error during nfq_unbind_pf() (no permission?)");
return (false);
}
if(nfq_bind_pf(nfqHandle, AF_INET) < 0)
{
LOGE("Error during nfq_bind_pf()");
return (false);
}
queueHandle = nfq_create_queue(nfqHandle, queue, &callback, this);
if(!queueHandle)
{
LOGE("Error during nfq_create_queue()");
return (false);
}
if(nfq_set_queue_flags(queueHandle, NFQA_CFG_F_SECCTX, NFQA_CFG_F_SECCTX))
LOGI("This kernel version does not allow to retrieve security context");
if(nfq_set_mode(queueHandle, netherConfig.copyPackets ? NFQNL_COPY_PACKET : NFQNL_COPY_META, 0xffff) < 0)
{
LOGE("Can't set packet_copy mode");
nfq_destroy_queue(queueHandle);
return (false);
}
if(nfq_set_queue_flags(queueHandle, NFQA_CFG_F_UID_GID, NFQA_CFG_F_UID_GID))
{
LOGE("This kernel version does not allow to retrieve process UID/GID");
nfq_destroy_queue(queueHandle);
return (false);
}
if (netherConfig.interfaceInfo)
{
nlif = nlif_open();
if(!nlif)
LOGI("Failed to initialize NLIF subsystem, interface information won't be available");
else
nlif_query(nlif);
}
return (true);
}
struct nlif_handle *nl_init_interface_handler(void)
{
struct nlif_handle *h;
h = nlif_open();
if (h == NULL)
return NULL;
if (nlif_query(h) == -1) {
free(h);
return NULL;
}
fcntl(nlif_fd(h), F_SETFL, O_NONBLOCK);
return h;
}
int main()
{
int i;
struct nlif_handle *h;
h = nlif_open();
if (h == NULL) {
perror("nlif_open");
exit(EXIT_FAILURE);
}
nlif_query(h);
for (i=0; i<64; i++) {
char name[IFNAMSIZ];
if (nlif_index2name(h, i, name) == -1)
continue;
printf("index (%d) is %s\n", i, name);
}
nlif_close(h);
}
