uloop_end();
}
+static void print_usage(const char *app)
+{
+ printf(
+ "== %s Usage ==\n\n"
+ " -h, --help Print this help\n"
+ " -l level Specify log level 0..7 (default %d)\n",
+ app, LOG_WARNING
+ );
+}
-int main()
+int main(int argc, char **argv)
{
openlog("odhcpd", LOG_PERROR | LOG_PID, LOG_DAEMON);
- setlogmask(LOG_UPTO(LOG_WARNING));
+ int opt;
+ int log_level = LOG_WARNING;
+ while ((opt = getopt(argc, argv, "hl:")) != -1) {
+ switch (opt) {
+ case 'h':
+ print_usage(argv[0]);
+ return 0;
+ case 'l':
+ log_level = atoi(optarg);
+ fprintf(stderr, "Log level set to %d\n", log_level);
+ break;
+ }
+ }
+ setlogmask(LOG_UPTO(log_level));
uloop_init();
if (getuid() != 0) {
return ret;
}
-int odhcpd_get_preferred_interface_address(int ifindex, struct in6_addr *addr)
+int odhcpd_get_linklocal_interface_address(int ifindex, struct in6_addr *lladdr)
{
- struct odhcpd_ipaddr ipaddrs[8];
- ssize_t ip_cnt = odhcpd_get_interface_addresses(ifindex, ipaddrs, ARRAY_SIZE(ipaddrs));
- uint32_t preferred = 0;
- int ret = 0;
-
- for (ssize_t i = 0; i < ip_cnt; i++) {
- struct odhcpd_ipaddr *ipaddr = &ipaddrs[i];
-
- if (ipaddr->preferred > preferred || !preferred) {
- preferred = ipaddr->preferred;
- *addr = ipaddr->addr;
- ret = 1;
+ int status = -1;
+ struct sockaddr_in6 addr = {AF_INET6, 0, 0, ALL_IPV6_ROUTERS, ifindex};
+ socklen_t alen = sizeof(addr);
+ int sock = socket(AF_INET6, SOCK_RAW, IPPROTO_ICMPV6);
+
+ if (!connect(sock, (struct sockaddr*)&addr, sizeof(addr)) &&
+ !getsockname(sock, (struct sockaddr*)&addr, &alen)) {
+ *lladdr = addr.sin6_addr;
+ status = 0;
}
- }
- return ret;
+ close(sock);
+ return status;
}
void odhcpd_setup_route(const struct in6_addr *addr, int prefixlen,
struct sockaddr_nl nl;
} addr;
+ if (u->error) {
+ int ret = -1;
+ socklen_t ret_len = sizeof(ret);
+ getsockopt(u->fd, SOL_SOCKET, SO_ERROR, &ret, &ret_len);
+ u->error = false;
+ if (e->handle_error)
+ e->handle_error(ret);
+ }
+
while (true) {
struct iovec iov = {data_buf, sizeof(data_buf)};
struct msghdr msg = {
else if (addr.in.sin_family == AF_INET)
inet_ntop(AF_INET, &addr.in.sin_addr, ipbuf, sizeof(ipbuf));
- syslog(LOG_DEBUG, "--");
syslog(LOG_DEBUG, "Received %li Bytes from %s%%%s", (long)len,
ipbuf, (iface) ? iface->ifname : "netlink");
int odhcpd_register(struct odhcpd_event *event)
{
event->uloop.cb = odhcpd_receive_packets;
- return uloop_fd_add(&event->uloop, ULOOP_READ);
+ return uloop_fd_add(&event->uloop, ULOOP_READ |
+ ((event->handle_error) ? ULOOP_ERROR_CB : 0));
}
void odhcpd_process(struct odhcpd_event *event)