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authorStanislav Zaikin <stanislav.zaikin@46labs.com>2023-04-04 10:26:39 +0200
committerNeale Ranns <neale@graphiant.com>2023-04-11 22:40:21 +0000
commitfdf917e8f8dd5abb3f9263c9cb3fd9ce00563b60 (patch)
tree338b7e6fafba643eb17178a5ffc6b2d6d7ebbd7b /src/plugins/linux-cp/lcp_interface.c
parent00f5d96f04337dce0a24fdf0da06f5991c981e46 (diff)
linux-cp: don't create tap for non-eth ifaces
Creation of lcp tap for non-ethernet interfaces can potentially lead to a crash, so avoid it. Type: fix Change-Id: I76ded8a08ea38a2c31d0215804af023207d4d3e1 Signed-off-by: Stanislav Zaikin <stanislav.zaikin@46labs.com>
Diffstat (limited to 'src/plugins/linux-cp/lcp_interface.c')
-rw-r--r--src/plugins/linux-cp/lcp_interface.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/plugins/linux-cp/lcp_interface.c b/src/plugins/linux-cp/lcp_interface.c
index eef06ecfa19..fab048a7773 100644
--- a/src/plugins/linux-cp/lcp_interface.c
+++ b/src/plugins/linux-cp/lcp_interface.c
@@ -805,6 +805,14 @@ lcp_itf_pair_create (u32 phy_sw_if_index, u8 *host_if_name,
return VNET_API_ERROR_INVALID_SW_IF_INDEX;
}
+ if (hw->hw_class_index != ethernet_hw_interface_class.index &&
+ host_if_type == LCP_ITF_HOST_TAP)
+ {
+ LCP_ITF_PAIR_ERR (
+ "pair_create: don't create TAP for non-eth interface; use tun");
+ return VNET_API_ERROR_INVALID_ARGUMENT;
+ }
+
/*
* Use interface-specific netns if supplied.
* Otherwise, use netns if defined, otherwise use the OS default.