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e80eb1dc86
Instead of relying on the exit_umh cleanup callback use the fact a struct pid can be tested to see if a process still exists, and that struct pid has a wait queue that notifies when the process dies. v1: https://lkml.kernel.org/r/87h7uydlu9.fsf_-_@x220.int.ebiederm.org v2: https://lkml.kernel.org/r/874kqt4owu.fsf_-_@x220.int.ebiederm.org Link: https://lkml.kernel.org/r/20200702164140.4468-14-ebiederm@xmission.com Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Alexei Starovoitov <ast@kernel.org> Tested-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
26 lines
779 B
C
26 lines
779 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _LINUX_BPFILTER_H
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#define _LINUX_BPFILTER_H
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#include <uapi/linux/bpfilter.h>
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#include <linux/usermode_driver.h>
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struct sock;
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int bpfilter_ip_set_sockopt(struct sock *sk, int optname, char __user *optval,
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unsigned int optlen);
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int bpfilter_ip_get_sockopt(struct sock *sk, int optname, char __user *optval,
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int __user *optlen);
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void bpfilter_umh_cleanup(struct umd_info *info);
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struct bpfilter_umh_ops {
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struct umd_info info;
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/* since ip_getsockopt() can run in parallel, serialize access to umh */
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struct mutex lock;
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int (*sockopt)(struct sock *sk, int optname,
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char __user *optval,
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unsigned int optlen, bool is_set);
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int (*start)(void);
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};
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extern struct bpfilter_umh_ops bpfilter_ops;
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#endif
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