39 lines
1.5 KiB
C
39 lines
1.5 KiB
C
/*
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* Copyright (c) 2020 Darren Tucker <dtucker@openbsd.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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struct xaddr;
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struct per_source_penalty;
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void srclimit_init(int, int, int, int,
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struct per_source_penalty *, const char *);
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int srclimit_check_allow(int, int);
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void srclimit_done(int);
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#define SRCLIMIT_PENALTY_NONE 0
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#define SRCLIMIT_PENALTY_CRASH 1
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#define SRCLIMIT_PENALTY_AUTHFAIL 2
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#define SRCLIMIT_PENALTY_GRACE_EXCEEDED 3
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#define SRCLIMIT_PENALTY_NOAUTH 4
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/* meaningful exit values, used by sshd listener for penalties */
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#define EXIT_LOGIN_GRACE 3 /* login grace period exceeded */
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#define EXIT_CHILD_CRASH 4 /* preauth child crashed */
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#define EXIT_AUTH_ATTEMPTED 5 /* at least one auth attempt made */
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void srclimit_penalise(struct xaddr *, int);
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int srclimit_penalty_check_allow(int, const char **);
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void srclimit_penalty_info(void);
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