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| author | Jussi Kukkonen <jku@goto.fi> | 2014-07-30 11:35:52 +0300 |
|---|---|---|
| committer | Jens Georg <mail@jensge.org> | 2014-08-06 01:11:46 +0200 |
| commit | dd001ff917fbec59e8df79f1ff3a5f6baed72b75 (patch) | |
| tree | feb4af9172bec015fe82a3f2a6b98a6e8d2a8be4 | |
| parent | f8dee020b6c80dbba6babe1a8628288b3e6a7d1e (diff) | |
| download | gssdp-dd001ff917fbec59e8df79f1ff3a5f6baed72b75.tar.gz | |
Accept messages from other networks on loopback
Kernel does smart things and routes traffic sent to other networks
through loopback. We need to accept messages like that.
https://bugzilla.gnome.org/show_bug.cgi?id=733851
| -rw-r--r-- | libgssdp/gssdp-client.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/libgssdp/gssdp-client.c b/libgssdp/gssdp-client.c index 0fc7831..71b486a 100644 --- a/libgssdp/gssdp-client.c +++ b/libgssdp/gssdp-client.c @@ -91,6 +91,9 @@ typedef unsigned long in_addr_t; /* Size of the buffer used for reading from the socket */ #define BUF_SIZE 65536 +/* interface index for loopback device */ +#define LOOPBACK_IFINDEX 1 + static void gssdp_client_initable_iface_init (gpointer g_iface, gpointer iface_data); @@ -1165,14 +1168,20 @@ socket_source_cb (GSSDPSocketSource *socket_source, GSSDPClient *client) int i; for (i = 0; i < num_messages; i++) { GSSDPPktinfoMessage *msg; + gint msg_ifindex; + if (!GSSDP_IS_PKTINFO_MESSAGE (messages[i])) continue; msg = GSSDP_PKTINFO_MESSAGE (messages[i]); - if (!((gssdp_pktinfo_message_get_ifindex (msg) == - client->priv->device.index) && - (g_inet_address_equal (gssdp_pktinfo_message_get_local_addr (msg), - client->priv->device.host_addr)))) + msg_ifindex = gssdp_pktinfo_message_get_ifindex (msg); + /* message needs to be on correct interface or on + * loopback (as kernel can be smart and route things + * there even if sent to another network) */ + if (!((msg_ifindex == client->priv->device.index || + msg_ifindex == LOOPBACK_IFINDEX) && + (g_inet_address_equal (gssdp_pktinfo_message_get_local_addr (msg), + client->priv->device.host_addr)))) goto out; else break; |