#include "util.h"
#include "dns.h"
#include "announce.h"
+#include "service.h"
static int
interface_send_packet4(struct interface *iface, struct iovec *iov, int iov_len)
int
interface_send_packet(struct interface *iface, struct iovec *iov, int iov_len)
{
+ if (debug > 1) {
+ fprintf(stderr, "TX ipv%d: %s\n", iface->v6 * 2 + 4, iface->name);
+ fprintf(stderr, " multicast: %d\n", iface->multicast);
+ }
+
if (iface->v6)
return interface_send_packet6(iface, iov, iov_len);
free(iface);
}
+static int
+interface_valid_src(void *ip1, void *mask, void *ip2, int len)
+{
+ uint8_t *i1 = ip1;
+ uint8_t *i2 = ip2;
+ uint8_t *m = mask;
+ int i;
+
+ if (cfg_no_subnet)
+ return 0;
+
+ for (i = 0; i < len; i++, i1++, i2++, m++) {
+ if ((*i1 & *m) != (*i2 & *m))
+ return -1;
+ }
+
+ return 0;
+}
+
static void
read_socket4(struct uloop_fd *u, unsigned int events)
{
if (debug > 1) {
char buf[256];
- fprintf(stderr, "iface: %s\n", iface->name);
- fprintf(stderr, " v6: %d\n", iface->v6);
+ fprintf(stderr, "RX ipv4: %s\n", iface->name);
fprintf(stderr, " multicast: %d\n", iface->multicast);
inet_ntop(AF_INET, &from.sin_addr, buf, 256);
fprintf(stderr, " src %s:%d\n", buf, from.sin_port);
if (inp->ipi_ifindex != iface->ifindex)
fprintf(stderr, "invalid iface index %d != %d\n", ifindex, iface->ifindex);
- else
- dns_handle_packet(iface, buffer, len, 0);
+ else if (!interface_valid_src((void *) &iface->v4_addr, (void *) &iface->v4_netmask, (void *) &from.sin_addr, 4))
+ dns_handle_packet(iface, (struct sockaddr *) &from, from.sin_port, buffer, len);
}
static void
if (debug > 1) {
char buf[256];
- fprintf(stderr, "iface: %s\n", iface->name);
- fprintf(stderr, " v6: %d\n", iface->v6);
+ fprintf(stderr, "RX ipv6: %s\n", iface->name);
fprintf(stderr, " multicast: %d\n", iface->multicast);
inet_ntop(AF_INET6, &from.sin6_addr, buf, 256);
fprintf(stderr, " src %s:%d\n", buf, from.sin6_port);
if (inp->ipi6_ifindex != iface->ifindex)
fprintf(stderr, "invalid iface index %d != %d\n", ifindex, iface->ifindex);
- else
- dns_handle_packet(iface, buffer, len, 0);
+ else if (!interface_valid_src((void *) &iface->v6_addr, (void *) &iface->v6_netmask, (void *) &from.sin6_addr, 16))
+ dns_handle_packet(iface, (struct sockaddr *) &from, from.sin6_port, buffer, len);
}
static int
goto retry;
}
+ if (setsockopt(iface->fd.fd, SOL_SOCKET, SO_BINDTODEVICE, iface->name, strlen(iface->name) < 0))
+ fprintf(stderr, "ioctl failed: SO_BINDTODEVICE\n");
+
if (setsockopt(iface->fd.fd, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(yes)) < 0)
fprintf(stderr, "ioctl failed: SO_REUSEADDR\n");
uloop_fd_add(&iface->fd, ULOOP_READ);
if (iface->multicast) {
- dns_send_question(iface, "_services._dns-sd._udp.local", TYPE_PTR, 1);
+ dns_send_question(iface, "_services._dns-sd._udp.local", TYPE_PTR, 0);
announce_init(iface);
}
goto retry;
}
+ if (setsockopt(iface->fd.fd, SOL_SOCKET, SO_BINDTODEVICE, iface->name, strlen(iface->name) < 0))
+ fprintf(stderr, "ioctl failed: SO_BINDTODEVICE\n");
+
if (setsockopt(iface->fd.fd, IPPROTO_IPV6, IPV6_UNICAST_HOPS, &ttl, sizeof(ttl)) < 0)
fprintf(stderr, "ioctl failed: IPV6_UNICAST_HOPS\n");
uloop_fd_add(&iface->fd, ULOOP_READ);
if (iface->multicast) {
- dns_send_question(iface, "_services._dns-sd._udp.local", TYPE_PTR, 1);
+ dns_send_question(iface, "_services._dns-sd._udp.local", TYPE_PTR, 0);
announce_init(iface);
}
unicast = _interface_add(name, 0, 0);
if (!unicast)
continue;
- sa = (struct sockaddr_in *) ifa->ifa_addr;
- memcpy(&unicast->v4_addr, &sa->sin_addr, sizeof(unicast->v4_addr));
- inet_ntop(AF_INET, &sa->sin_addr, unicast->v4_addrs, sizeof(unicast->v4_addrs));
-
v4 = _interface_add(name, 1, 0);
if (!v4)
continue;
+
+ sa = (struct sockaddr_in *) ifa->ifa_addr;
memcpy(&v4->v4_addr, &sa->sin_addr, sizeof(v4->v4_addr));
+ memcpy(&unicast->v4_addr, &sa->sin_addr, sizeof(unicast->v4_addr));
+
inet_ntop(AF_INET, &sa->sin_addr, v4->v4_addrs, sizeof(v4->v4_addrs));
+ inet_ntop(AF_INET, &sa->sin_addr, unicast->v4_addrs, sizeof(unicast->v4_addrs));
+
+ sa = (struct sockaddr_in *) ifa->ifa_netmask;
+ memcpy(&unicast->v4_netmask, &sa->sin_addr, sizeof(unicast->v4_netmask));
+ memcpy(&v4->v4_netmask, &sa->sin_addr, sizeof(v4->v4_netmask));
v4->peer = unicast;
unicast->peer = v4;
unicast = _interface_add(name, 0, 1);
if (!unicast)
continue;
- memcpy(&unicast->v6_addr, &sa6->sin6_addr, sizeof(unicast->v6_addr));
- inet_ntop(AF_INET6, &sa6->sin6_addr, unicast->v6_addrs, sizeof(unicast->v6_addrs));
-
v6 = _interface_add(name, 1, 1);
if (!v6)
continue;
+
memcpy(&v6->v6_addr, &sa6->sin6_addr, sizeof(v6->v6_addr));
+ memcpy(&unicast->v6_addr, &sa6->sin6_addr, sizeof(unicast->v6_addr));
+
inet_ntop(AF_INET6, &sa6->sin6_addr, v6->v6_addrs, sizeof(v6->v6_addrs));
+ inet_ntop(AF_INET6, &sa6->sin6_addr, unicast->v6_addrs, sizeof(unicast->v6_addrs));
+
+ sa6 = (struct sockaddr_in6 *) ifa->ifa_netmask;
+ memcpy(&v6->v6_netmask, &sa6->sin6_addr, sizeof(v6->v6_netmask));
+ memcpy(&unicast->v6_netmask, &sa6->sin6_addr, sizeof(unicast->v6_netmask));
v6->peer = unicast;
unicast->peer = v6;
return !v4 && !v6;
}
+void interface_shutdown(void)
+{
+ struct interface *iface;
+
+ vlist_for_each_element(&interfaces, iface, node)
+ if (iface->fd.fd > 0 && iface->multicast) {
+ service_announce(iface, 0);
+ dns_reply_a(iface, 0);
+ }
+ vlist_for_each_element(&interfaces, iface, node)
+ interface_close(iface);
+}
+
+struct interface*
+interface_get(const char *name, int v6, int multicast)
+{
+ char id_buf[32];
+ snprintf(id_buf, sizeof(id_buf), "%d_%d_%s", multicast, v6, name);
+ struct interface *iface = vlist_find(&interfaces, id_buf, iface, node);
+ return iface;
+}
+
VLIST_TREE(interfaces, avl_strcmp, iface_update_cb, false, false);
projects / project / mdnsd.git / blobdiff