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Implement SCM_PIDFD, a new type of CMSG type analogical to SCM_CREDENTIALS, but it contains pidfd instead of plain pid, which allows programmers not to care about PID reuse problem. Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <edumazet@google.com> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Paolo Abeni <pabeni@redhat.com> Cc: Leon Romanovsky <leon@kernel.org> Cc: David Ahern <dsahern@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Kees Cook <keescook@chromium.org> Cc: Christian Brauner <brauner@kernel.org> Cc: linux-kernel@vger.kernel.org Cc: netdev@vger.kernel.org Cc: linux-arch@vger.kernel.org Signed-off-by: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com>
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#define SO_RCVMARK 75 | ||
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#define SO_PASSPIDFD 76 | ||
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#if !defined(__KERNEL__) | ||
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#if __BITS_PER_LONG == 64 | ||
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#define SO_RCVMARK 75 | ||
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#define SO_PASSPIDFD 76 | ||
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#if !defined(__KERNEL__) | ||
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#if __BITS_PER_LONG == 64 | ||
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#define SO_RCVMARK 0x0054 | ||
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#define SO_PASSPIDFD 0x0055 | ||
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#if !defined(__KERNEL__) | ||
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