Annotation of src/usr.bin/ssh/auth-options.h, Revision 1.27
1.27 ! djm 1: /* $OpenBSD: auth-options.h,v 1.26 2018/03/12 00:52:01 djm Exp $ */
1.11 stevesk 2:
1.2 deraadt 3: /*
1.25 djm 4: * Copyright (c) 2018 Damien Miller <djm@mindrot.org>
1.2 deraadt 5: *
1.25 djm 6: * Permission to use, copy, modify, and distribute this software for any
7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.2 deraadt 17: */
1.5 djm 18:
1.1 markus 19: #ifndef AUTH_OPTIONS_H
20: #define AUTH_OPTIONS_H
1.8 markus 21:
1.24 djm 22: struct passwd;
23: struct sshkey;
24:
25: /*
26: * sshauthopt represents key options parsed from authorized_keys or
27: * from certificate extensions/options.
28: */
29: struct sshauthopt {
30: /* Feature flags */
31: int permit_port_forwarding_flag;
32: int permit_agent_forwarding_flag;
33: int permit_x11_forwarding_flag;
34: int permit_pty_flag;
35: int permit_user_rc;
36:
37: /* "restrict" keyword was invoked */
38: int restricted;
1.26 djm 39:
40: /* key/principal expiry date */
41: uint64_t valid_before;
1.24 djm 42:
43: /* Certificate-related options */
44: int cert_authority;
45: char *cert_principals;
46:
47: int force_tun_device;
48: char *force_command;
49:
50: /* Custom environment */
51: size_t nenv;
52: char **env;
53:
54: /* Permitted port forwardings */
55: size_t npermitopen;
56: char **permitopen;
1.27 ! djm 57:
! 58: /* Permitted listens (remote forwarding) */
! 59: size_t npermitlisten;
! 60: char **permitlisten;
1.24 djm 61:
62: /*
63: * Permitted host/addresses (comma-separated)
64: * Caller must check source address matches both lists (if present).
65: */
66: char *required_from_host_cert;
67: char *required_from_host_keys;
68: };
69:
70: struct sshauthopt *sshauthopt_new(void);
71: struct sshauthopt *sshauthopt_new_with_keys_defaults(void);
72: void sshauthopt_free(struct sshauthopt *opts);
73: struct sshauthopt *sshauthopt_copy(const struct sshauthopt *orig);
74: int sshauthopt_serialise(const struct sshauthopt *opts, struct sshbuf *m, int);
75: int sshauthopt_deserialise(struct sshbuf *m, struct sshauthopt **opts);
76:
77: /*
78: * Parse authorized_keys options. Returns an options structure on success
79: * or NULL on failure. Will set errstr on failure.
80: */
81: struct sshauthopt *sshauthopt_parse(const char *s, const char **errstr);
82:
83: /*
84: * Parse certification options to a struct sshauthopt.
85: * Returns options on success or NULL on failure.
86: */
87: struct sshauthopt *sshauthopt_from_cert(struct sshkey *k);
88:
89: /*
90: * Merge key options.
91: */
92: struct sshauthopt *sshauthopt_merge(const struct sshauthopt *primary,
93: const struct sshauthopt *additional, const char **errstrp);
1.4 markus 94:
1.1 markus 95: #endif