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96 lines
2.7 KiB
C
96 lines
2.7 KiB
C
/* $OpenBSD: auth-options.h,v 1.27 2018/06/06 18:23:32 djm Exp $ */
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/*
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* Copyright (c) 2018 Damien Miller <djm@mindrot.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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#ifndef AUTH_OPTIONS_H
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#define AUTH_OPTIONS_H
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struct passwd;
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struct sshkey;
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/*
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* sshauthopt represents key options parsed from authorized_keys or
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* from certificate extensions/options.
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*/
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struct sshauthopt {
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/* Feature flags */
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int permit_port_forwarding_flag;
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int permit_agent_forwarding_flag;
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int permit_x11_forwarding_flag;
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int permit_pty_flag;
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int permit_user_rc;
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/* "restrict" keyword was invoked */
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int restricted;
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/* key/principal expiry date */
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uint64_t valid_before;
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/* Certificate-related options */
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int cert_authority;
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char *cert_principals;
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int force_tun_device;
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char *force_command;
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/* Custom environment */
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size_t nenv;
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char **env;
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/* Permitted port forwardings */
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size_t npermitopen;
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char **permitopen;
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/* Permitted listens (remote forwarding) */
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size_t npermitlisten;
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char **permitlisten;
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/*
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* Permitted host/addresses (comma-separated)
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* Caller must check source address matches both lists (if present).
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*/
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char *required_from_host_cert;
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char *required_from_host_keys;
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};
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struct sshauthopt *sshauthopt_new(void);
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struct sshauthopt *sshauthopt_new_with_keys_defaults(void);
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void sshauthopt_free(struct sshauthopt *opts);
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struct sshauthopt *sshauthopt_copy(const struct sshauthopt *orig);
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int sshauthopt_serialise(const struct sshauthopt *opts, struct sshbuf *m, int);
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int sshauthopt_deserialise(struct sshbuf *m, struct sshauthopt **opts);
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/*
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* Parse authorized_keys options. Returns an options structure on success
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* or NULL on failure. Will set errstr on failure.
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*/
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struct sshauthopt *sshauthopt_parse(const char *s, const char **errstr);
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/*
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* Parse certification options to a struct sshauthopt.
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* Returns options on success or NULL on failure.
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*/
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struct sshauthopt *sshauthopt_from_cert(struct sshkey *k);
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/*
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* Merge key options.
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*/
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struct sshauthopt *sshauthopt_merge(const struct sshauthopt *primary,
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const struct sshauthopt *additional, const char **errstrp);
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#endif
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