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032d9cde85
Add a small utility that uses a kprobe to extract the currently active slave ifindex from a bond interface. This value is normally only exported to userspace for bond types where it can be explicitly set, but the bond driver has an internal notion of an active interface regardless of the bond type. We can extract this value with a kprobe by attaching to a function in the bond driver and triggering an operation that causes this function to be called. Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
11 lines
210 B
C
11 lines
210 B
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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#ifndef BOND_ACTIVE_H
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#define BOND_ACTIVE_H
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#include <bpf/libbpf.h>
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int get_bond_active_ifindex(int bond_ifindex);
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int get_netns_cookie(__u64 *cookie);
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#endif
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