static struct configvar myvars[] =
{
- /* 0 = Direct mode, 1 = Passive mode, 2 = SOCKS proxy */
+ /** The network mode to use. Currently supported values are 0 for
+ * active mode and 1 for passive mode. In the future, SOCKS5 proxy
+ * support may be added. */
{CONF_VAR_INT, "mode", {.num = 0}},
+ /** Set the SO_REUSEADDR socket option on listening sockets, so
+ * that dead TCP connections waiting for timeout are ignored. */
{CONF_VAR_BOOL, "reuseaddr", {.num = 0}},
- /* Only for direct mode */
+ /** Overrides the IPv4 address reported to other clients in active
+ * mode. Useful for servers behind NAT routers. If both this and
+ * net.publicif are unspecified the address of the hub connection
+ * is used. */
{CONF_VAR_IPV4, "visibleipv4", {.ipv4 = {0}}},
+ /** Specifies an interface name from which to fetch the IPv4
+ * address reported to other clients in active mode. If both this
+ * and net.visibleipv4 are unspecified the address of the hub
+ * connection is used. */
{CONF_VAR_STRING, "publicif", {.str = L""}},
/* Diffserv should be supported on IPv4, too, but I don't know the
* API to do that. */
+ /** The Diffserv value to use on IPv6 connections when the
+ * minimize cost TOS value is used (see the TOS VALUES
+ * section). */
{CONF_VAR_INT, "diffserv-mincost", {.num = 0}},
+ /** The Diffserv value to use on IPv6 connections when the
+ * maximize reliability TOS value is used (see the TOS VALUES
+ * section). */
{CONF_VAR_INT, "diffserv-maxrel", {.num = 0}},
+ /** The Diffserv value to use on IPv6 connections when the
+ * maximize throughput TOS value is used (see the TOS VALUES
+ * section). */
{CONF_VAR_INT, "diffserv-maxtp", {.num = 0}},
+ /** The Diffserv value to use on IPv6 connections when the
+ * minimize delay TOS value is used (see the TOS VALUES
+ * section). */
{CONF_VAR_INT, "diffserv-mindelay", {.num = 0}},
{CONF_VAR_END}
};
{
sk->outbuf.d.f = buf->next;
free(buf->data);
+ free(buf->addr);
free(buf);
}
while((buf = sk->inbuf.d.f) != NULL)
{
sk->inbuf.d.f = buf->next;
free(buf->data);
+ free(buf->addr);
free(buf);
}
break;
}
- if(sk->fd >= 0)
- close(sk->fd);
+ closesock(sk);
if(sk->remote != NULL)
free(sk->remote);
free(sk);
void closesock(struct socket *sk)
{
+ struct sockaddr_un *un;
+
+ if((sk->family == AF_UNIX) && !sockgetlocalname(sk, (struct sockaddr **)&un, NULL) && (un->sun_family == PF_UNIX))
+ {
+ if(strchr(un->sun_path, '/'))
+ {
+ if(unlink(un->sun_path))
+ flog(LOG_WARNING, "could not unlink UNIX socket %s: %s", un->sun_path, strerror(errno));
+ }
+ }
sk->state = SOCK_STL;
close(sk->fd);
sk->fd = -1;
int pollsocks(int timeout)
{
- int i, num, ret, retlen;
+ int i, num, ret;
+ socklen_t retlen;
int newfd;
struct pollfd *pfds;
struct socket *sk, *next, *newsk;
return(-1);
}
*namebuf = memcpy(smalloc(len), &name, len);
- *lenbuf = len;
+ if(lenbuf != NULL)
+ *lenbuf = len;
return(0);
}
-int sockgetremotename(struct socket *sk, struct sockaddr **namebuf, socklen_t *lenbuf)
+static void sethostaddr(struct sockaddr *dst, struct sockaddr *src)
+{
+ if(dst->sa_family != src->sa_family)
+ {
+ flog(LOG_ERR, "BUG: non-matching socket families in sethostaddr (%i -> %i)", src->sa_family, dst->sa_family);
+ return;
+ }
+ switch(src->sa_family)
+ {
+ case AF_INET:
+ ((struct sockaddr_in *)dst)->sin_addr = ((struct sockaddr_in *)src)->sin_addr;
+ break;
+ case AF_INET6:
+ ((struct sockaddr_in6 *)dst)->sin6_addr = ((struct sockaddr_in6 *)src)->sin6_addr;
+ break;
+ default:
+ flog(LOG_WARNING, "sethostaddr unimplemented for family %i", src->sa_family);
+ break;
+ }
+}
+
+static int makepublic(struct sockaddr *addr)
{
int ret;
+ socklen_t plen;
+ struct sockaddr *pname;
+
+ if((ret = getpublicaddr(addr->sa_family, &pname, &plen)) < 0)
+ {
+ flog(LOG_ERR, "could not get public address: %s", strerror(errno));
+ return(-1);
+ }
+ if(ret)
+ return(0);
+ sethostaddr(addr, pname);
+ free(pname);
+ return(0);
+}
+
+int sockgetremotename(struct socket *sk, struct sockaddr **namebuf, socklen_t *lenbuf)
+{
socklen_t len;
struct sockaddr *name;
case 0:
*namebuf = NULL;
if((sk->state == SOCK_STL) || (sk->fd < 0))
- return(-1);
- if((ret = getpublicaddr(sk->family, &name, &len)) < 0)
{
- flog(LOG_ERR, "could not get public address: %s", strerror(errno));
+ errno = EBADF;
return(-1);
}
- if(ret == 0)
- {
- *namebuf = name;
- *lenbuf = len;
- return(0);
- }
if(!sockgetlocalname(sk, &name, &len))
{
*namebuf = name;
*lenbuf = len;
+ makepublic(name);
return(0);
}
flog(LOG_ERR, "could not get remotely accessible name by any means");
}
}
+int sockgetremotename2(struct socket *sk, struct socket *sk2, struct sockaddr **namebuf, socklen_t *lenbuf)
+{
+ struct sockaddr *name1, *name2;
+ socklen_t len1, len2;
+
+ if(sk->family != sk2->family)
+ {
+ flog(LOG_ERR, "using sockgetremotename2 with sockets of differing family: %i %i", sk->family, sk2->family);
+ return(-1);
+ }
+ if(sockgetremotename(sk, &name1, &len1))
+ return(-1);
+ if(sockgetremotename(sk2, &name2, &len2)) {
+ free(name1);
+ return(-1);
+ }
+ sethostaddr(name1, name2);
+ free(name2);
+ *namebuf = name1;
+ *lenbuf = len1;
+ return(0);
+}
+
int addreq(struct sockaddr *x, struct sockaddr *y)
{
struct sockaddr_un *u1, *u2;
if(n1->sin_addr.s_addr != n2->sin_addr.s_addr)
return(0);
break;
+#ifdef HAVE_IPV6
case AF_INET6:
s1 = (struct sockaddr_in6 *)x; s2 = (struct sockaddr_in6 *)y;
if(s1->sin6_port != s2->sin6_port)
if(memcmp(s1->sin6_addr.s6_addr, s2->sin6_addr.s6_addr, sizeof(s1->sin6_addr.s6_addr)))
return(0);
break;
+#endif
}
return(1);
}
Dolda2000 GitWeb / doldaconnect.git / blobdiff