// Read IPv6 MTU for interface
-int odhcpd_get_interface_mtu(const char *ifname)
+int odhcpd_get_interface_config(const char *ifname, const char *what)
{
char buf[64];
- const char *sysctl_pattern = "/proc/sys/net/ipv6/conf/%s/mtu";
- snprintf(buf, sizeof(buf), sysctl_pattern, ifname);
+ const char *sysctl_pattern = "/proc/sys/net/ipv6/conf/%s/%s";
+ snprintf(buf, sizeof(buf), sysctl_pattern, ifname, what);
int fd = open(buf, O_RDONLY);
ssize_t len = read(fd, buf, sizeof(buf) - 1);
if (len < 0)
return -1;
-
buf[len] = 0;
return atoi(buf);
-
}
{
// Construct headers
uint8_t cmsg_buf[CMSG_SPACE(sizeof(struct in6_pktinfo))] = {0};
- struct msghdr msg = {(void*)dest, sizeof(*dest), iov, iov_len,
- cmsg_buf, sizeof(cmsg_buf), 0};
+ struct msghdr msg = {
+ .msg_name = (void *) dest,
+ .msg_namelen = sizeof(*dest),
+ .msg_iov = iov,
+ .msg_iovlen = iov_len,
+ .msg_control = cmsg_buf,
+ .msg_controllen = sizeof(cmsg_buf),
+ .msg_flags = 0
+ };
// Set control data (define destination interface)
struct cmsghdr *chdr = CMSG_FIRSTHDR(&msg);
if (ifa->ifa_flags & IFA_F_DEPRECATED)
addrs[ret].preferred = 0;
- addrs[ret].has_class = false;
- addrs[ret].class = 0;
-#ifdef WITH_UBUS
- struct interface *iface = odhcpd_get_interface_by_index(ifindex);
- if (iface)
- addrs[ret].has_class = ubus_get_class(iface->ifname,
- &addrs[ret].addr, &addrs[ret].class);
-#endif
++ret;
}
while (true) {
struct iovec iov = {data_buf, sizeof(data_buf)};
- struct msghdr msg = {&addr, sizeof(addr), &iov, 1,
- cmsg_buf, sizeof(cmsg_buf), 0};
+ struct msghdr msg = {
+ .msg_name = (void *) &addr,
+ .msg_namelen = sizeof(addr),
+ .msg_iov = &iov,
+ .msg_iovlen = 1,
+ .msg_control = cmsg_buf,
+ .msg_controllen = sizeof(cmsg_buf),
+ .msg_flags = 0
+ };
ssize_t len = recvmsg(u->fd, &msg, MSG_DONTWAIT);
if (len < 0) {
odhcpd_receive_packets(&event->uloop, 0);
}
-void odhcpd_urandom(void *data, size_t len)
+int odhcpd_urandom(void *data, size_t len)
{
- read(urandom_fd, data, len);
+ return read(urandom_fd, data, len);
}