From: Kristof Provost <[email protected]>
Signed-off-by: Kristof Provost <[email protected]>
---
configure.ac | 9 +++++
src/openvpn/dco_freebsd.c | 68 ++++++++++++++++++++++++++++++++++
src/openvpn/dco_freebsd.h | 2 +
src/openvpn/multi.c | 2 +-
src/openvpn/ovpn_dco_freebsd.h | 1 +
5 files changed, 81 insertions(+), 1 deletion(-)
diff --git a/configure.ac b/configure.ac
index 66cb79b1..50697b8e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -848,6 +848,15 @@ if test "$enable_dco" != "no"; then
else
AC_MSG_ERROR([DCO support can't be
enabled])
fi
+ else
+ AC_CHECK_DECLS(
+ [OVPN_NOTIF_FLOAT],
+ [AC_DEFINE([ENABLE_DCO_FLOAT_FREEBSD],
[1], [We have DCO float notifications on FreeBSD])],
+ ,
+ [[
+ #include <net/if_ovpn.h>
+ ]]
+ )
fi
;;
*-mingw*)
diff --git a/src/openvpn/dco_freebsd.c b/src/openvpn/dco_freebsd.c
index b8816c63..b0cab389 100644
--- a/src/openvpn/dco_freebsd.c
+++ b/src/openvpn/dco_freebsd.c
@@ -72,6 +72,55 @@ sockaddr_to_nvlist(const struct sockaddr *sa)
return (nvl);
}
+#ifdef ENABLE_DCO_FLOAT_FREEBSD
+static bool
+nvlist_to_sockaddr(const nvlist_t *nvl, struct sockaddr_storage *ss)
+{
+ if (! nvlist_exists_number(nvl, "af"))
+ return (false);
+ if (! nvlist_exists_binary(nvl, "address"))
+ return (false);
+ if (! nvlist_exists_number(nvl, "port"))
+ return (false);
+
+ ss->ss_family = nvlist_get_number(nvl, "af");
+
+ switch (ss->ss_family)
+ {
+ case AF_INET:
+ {
+ struct sockaddr_in *in = (struct sockaddr_in *)ss;
+ const void *data;
+ size_t len;
+
+ in->sin_len = sizeof(*in);
+ data = nvlist_get_binary(nvl, "address", &len);
+ assert(len == sizeof(in->sin_addr));
+ memcpy(&in->sin_addr, data, sizeof(in->sin_addr));
+ in->sin_port = nvlist_get_number(nvl, "port");
+ break;
+ }
+ case AF_INET6:
+ {
+ struct sockaddr_in6 *in6 = (struct sockaddr_in6 *)ss;
+ const void *data;
+ size_t len;
+
+ in6->sin6_len = sizeof(*in6);
+ data = nvlist_get_binary(nvl, "address", &len);
+ assert(len == sizeof(in6->sin6_addr));
+ memcpy(&in6->sin6_addr, data, sizeof(in6->sin6_addr));
+ in6->sin6_port = nvlist_get_number(nvl, "port");
+ break;
+ }
+ default:
+ return (false);
+ }
+
+ return (true);
+}
+#endif
+
int
dco_new_peer(dco_context_t *dco, unsigned int peerid, int sd,
struct sockaddr *localaddr, struct sockaddr *remoteaddr,
@@ -571,6 +620,25 @@ dco_do_read(dco_context_t *dco)
dco->dco_message_type = OVPN_CMD_SWAP_KEYS;
break;
+#ifdef ENABLE_DCO_FLOAT_FREEBSD
+ case OVPN_NOTIF_FLOAT: {
+ const nvlist_t *address;
+
+ if (! nvlist_exists_nvlist(nvl, "address")) {
+ msg(M_WARN, "Float notification without address");
+ break;
+ }
+
+ address = nvlist_get_nvlist(nvl, "address");
+ if (! nvlist_to_sockaddr(address, &dco->dco_float_peer_ss)) {
+ msg(M_WARN, "Failed to parse float notification");
+ break;
+ }
+ dco->dco_message_type = OVPN_CMD_FLOAT_PEER;
+ break;
+ }
+#endif
+
default:
msg(M_WARN, "Unknown kernel notification %d", type);
break;
diff --git a/src/openvpn/dco_freebsd.h b/src/openvpn/dco_freebsd.h
index e1a054e0..ab5891e8 100644
--- a/src/openvpn/dco_freebsd.h
+++ b/src/openvpn/dco_freebsd.h
@@ -36,6 +36,7 @@ enum ovpn_message_type_t {
OVPN_CMD_DEL_PEER,
OVPN_CMD_PACKET,
OVPN_CMD_SWAP_KEYS,
+ OVPN_CMD_FLOAT_PEER,
};
enum ovpn_del_reason_t {
@@ -55,6 +56,7 @@ typedef struct dco_context {
int dco_message_type;
int dco_message_peer_id;
int dco_del_peer_reason;
+ struct sockaddr_storage dco_float_peer_ss;
uint64_t dco_read_bytes;
uint64_t dco_write_bytes;
} dco_context_t;
diff --git a/src/openvpn/multi.c b/src/openvpn/multi.c
index 46966863..8e712e44 100644
--- a/src/openvpn/multi.c
+++ b/src/openvpn/multi.c
@@ -3400,7 +3400,7 @@ multi_process_incoming_dco(struct multi_context *m)
{
process_incoming_del_peer(m, mi, dco);
}
-#if defined(TARGET_LINUX) || defined(TARGET_WIN32)
+#if defined(TARGET_LINUX) || defined(TARGET_WIN32) || defined(TARGET_FREEBSD)
else if (dco->dco_message_type == OVPN_CMD_FLOAT_PEER)
{
ASSERT(mi->context.c2.link_sockets[0]);
diff --git a/src/openvpn/ovpn_dco_freebsd.h b/src/openvpn/ovpn_dco_freebsd.h
index 53f94dfd..7eb643b4 100644
--- a/src/openvpn/ovpn_dco_freebsd.h
+++ b/src/openvpn/ovpn_dco_freebsd.h
@@ -37,6 +37,7 @@
enum ovpn_notif_type {
OVPN_NOTIF_DEL_PEER,
OVPN_NOTIF_ROTATE_KEY,
+ OVPN_NOTIF_FLOAT,
};
enum ovpn_del_reason {
--
2.50.1
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