139 lines
4.1 KiB
Diff
139 lines
4.1 KiB
Diff
--- a/mcproxy/src/utils/mc_socket.cpp
|
|
+++ b/mcproxy/src/utils/mc_socket.cpp
|
|
@@ -37,6 +37,135 @@
|
|
#include <numeric>
|
|
#include <unistd.h>
|
|
|
|
+#ifdef __UCLIBC__
|
|
+#include <assert.h>
|
|
+#include <netax25/ax25.h>
|
|
+#include <netipx/ipx.h>
|
|
+#include <stdlib.h>
|
|
+#include <sys/param.h>
|
|
+#include <sys/socket.h>
|
|
+
|
|
+extern "C" {
|
|
+static const struct
|
|
+{
|
|
+ int sol;
|
|
+ int af;
|
|
+ socklen_t size;
|
|
+} sol_map[] =
|
|
+ {
|
|
+ /* Sort the array according to importance of the protocols. Add
|
|
+ more protocols when they become available. */
|
|
+ { SOL_IP, AF_INET, sizeof(struct sockaddr_in) },
|
|
+ { SOL_IPV6, AF_INET6, sizeof(struct sockaddr_in6) },
|
|
+ { SOL_AX25, AF_AX25, sizeof(struct sockaddr_ax25) },
|
|
+ { SOL_IPX, AF_IPX, sizeof(struct sockaddr_ipx) },
|
|
+ { SOL_PACKET, AF_PACKET, sizeof(struct sockaddr_ll) }
|
|
+ };
|
|
+#define NSOL_MAP (sizeof(sol_map) / sizeof(sol_map[0]))
|
|
+
|
|
+/* Try to determine the socket level value. Ideally both side and
|
|
+ family are set. But sometimes only the size is correct and the
|
|
+ family value might be bogus. Loop over the array entries and look
|
|
+ for a perfect match or the first match based on size. */
|
|
+int __get_sol(int af, socklen_t len)
|
|
+{
|
|
+ int first_size_sol = -1;
|
|
+ for (size_t cnt = 0; cnt < NSOL_MAP; ++cnt) {
|
|
+ /* Just a test so that we make sure the special value used to
|
|
+ signal the "we have so far no socket level value" is OK. */
|
|
+ assert(sol_map[cnt].sol != -1);
|
|
+
|
|
+ if (len == sol_map[cnt].size) {
|
|
+ /* The size matches, which is a requirement. If the family
|
|
+ matches, too, we have a winner. Otherwise we remember the
|
|
+ socket level value for this protocol if it is the first
|
|
+ match. */
|
|
+ if (af == sol_map[cnt].af)
|
|
+ return sol_map[cnt].sol;
|
|
+
|
|
+ if (first_size_sol == -1)
|
|
+ first_size_sol = sol_map[cnt].sol;
|
|
+ }
|
|
+ }
|
|
+
|
|
+ return first_size_sol;
|
|
+}
|
|
+
|
|
+int getsourcefilter(int s, uint32_t interface, const struct sockaddr *group,
|
|
+ socklen_t grouplen, uint32_t *fmode, uint32_t *numsrc,
|
|
+ struct sockaddr_storage *slist)
|
|
+{
|
|
+ socklen_t needed = GROUP_FILTER_SIZE(*numsrc);
|
|
+ struct group_filter *gf;
|
|
+
|
|
+ gf = (struct group_filter *) malloc(needed);
|
|
+ if (gf == NULL)
|
|
+ return -1;
|
|
+
|
|
+ gf->gf_interface = interface;
|
|
+ memcpy(&gf->gf_group, group, grouplen);
|
|
+ gf->gf_numsrc = *numsrc;
|
|
+
|
|
+ /* We need to provide the appropriate socket level value. */
|
|
+ int result;
|
|
+ int sol = __get_sol(group->sa_family, grouplen);
|
|
+ if (sol == -1) {
|
|
+ result = -1;
|
|
+ }
|
|
+ else {
|
|
+ result = getsockopt(s, sol, MCAST_MSFILTER, gf, &needed);
|
|
+
|
|
+ /* If successful, copy the results to the places the caller wants
|
|
+ them in. */
|
|
+ if (result == 0) {
|
|
+ *fmode = gf->gf_fmode;
|
|
+ memcpy(slist, gf->gf_slist,
|
|
+ MIN(*numsrc, gf->gf_numsrc)
|
|
+ * sizeof(struct sockaddr_storage));
|
|
+ *numsrc = gf->gf_numsrc;
|
|
+ }
|
|
+ }
|
|
+
|
|
+ free(gf);
|
|
+
|
|
+ return result;
|
|
+}
|
|
+
|
|
+int setsourcefilter(int s, uint32_t interface, const struct sockaddr *group,
|
|
+ socklen_t grouplen, uint32_t fmode, uint32_t numsrc,
|
|
+ const struct sockaddr_storage *slist)
|
|
+{
|
|
+ /* We have to create an struct ip_msfilter object which we can pass
|
|
+ to the kernel. */
|
|
+ size_t needed = GROUP_FILTER_SIZE(numsrc);
|
|
+ struct group_filter *gf;
|
|
+
|
|
+ gf = (struct group_filter *) malloc(needed);
|
|
+ if (gf == NULL)
|
|
+ return -1;
|
|
+
|
|
+ gf->gf_interface = interface;
|
|
+ memcpy(&gf->gf_group, group, grouplen);
|
|
+ gf->gf_fmode = fmode;
|
|
+ gf->gf_numsrc = numsrc;
|
|
+ memcpy(gf->gf_slist, slist, numsrc * sizeof(struct sockaddr_storage));
|
|
+
|
|
+ /* We need to provide the appropriate socket level value. */
|
|
+ int result;
|
|
+ int sol = __get_sol(group->sa_family, grouplen);
|
|
+ if (sol == -1) {
|
|
+ result = -1;
|
|
+ }
|
|
+ else
|
|
+ result = setsockopt(s, sol, MCAST_MSFILTER, gf, needed);
|
|
+
|
|
+ free(gf);
|
|
+
|
|
+ return result;
|
|
+}
|
|
+}
|
|
+#endif /* __UCLIBC__ */
|
|
+
|
|
std::string ipAddrResolver(std::string ipAddr)
|
|
{
|
|
std::string str[][2] = {
|