mirror of https://github.com/sudo-project/sudo.git
107 lines
7.5 KiB
C
107 lines
7.5 KiB
C
/*
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* SPDX-License-Identifier: ISC
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*
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* Copyright (c) 1999-2005, 2007-2016, 2018 Todd C. Miller <Todd.Miller@sudo.ws>
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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 SUDO_AUTH_H
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#define SUDO_AUTH_H
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/* Private auth function return values (rowhammer resistant). */
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#define AUTH_INTR 0x69d61fc8 /* 1101001110101100001111111001000 */
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#define AUTH_NONINTERACTIVE 0x1629e037 /* 0010110001010011110000000110111 */
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struct sudoers_context;
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typedef struct sudo_auth {
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unsigned int flags; /* various flags, see below */
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int status; /* status from verify routine */
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const char *name; /* name of the method as a string */
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void *data; /* method-specific data pointer */
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int (*init)(const struct sudoers_context *ctx, struct passwd *pw, struct sudo_auth *auth);
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int (*setup)(const struct sudoers_context *ctx, struct passwd *pw, char **prompt, struct sudo_auth *auth);
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int (*verify)(const struct sudoers_context *ctx, struct passwd *pw, const char *p, struct sudo_auth *auth, struct sudo_conv_callback *callback);
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int (*approval)(const struct sudoers_context *ctx, struct passwd *pw, struct sudo_auth *auth, bool exempt);
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int (*cleanup)(const struct sudoers_context *ctx, struct passwd *pw, struct sudo_auth *auth, bool force);
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int (*begin_session)(const struct sudoers_context *ctx, struct passwd *pw, char **user_env[], struct sudo_auth *auth);
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int (*end_session)(struct sudo_auth *auth);
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} sudo_auth;
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/* Values for sudo_auth.flags. */
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#define FLAG_DISABLED 0x02U /* method disabled */
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#define FLAG_STANDALONE 0x04U /* standalone auth method */
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#define FLAG_ONEANDONLY 0x08U /* one and only auth method */
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#define FLAG_NONINTERACTIVE 0x10U /* no user input allowed */
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/* Shortcuts for using the flags above. */
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#define IS_DISABLED(x) ((x)->flags & FLAG_DISABLED)
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#define IS_STANDALONE(x) ((x)->flags & FLAG_STANDALONE)
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#define IS_ONEANDONLY(x) ((x)->flags & FLAG_ONEANDONLY)
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#define IS_NONINTERACTIVE(x) ((x)->flags & FLAG_NONINTERACTIVE)
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/* Like tgetpass() but uses conversation function */
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char *auth_getpass(const char *prompt, int type, struct sudo_conv_callback *callback);
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/* Pointer to conversation function to use with auth_getpass(). */
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extern sudo_conv_t sudo_conv;
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/* Prototypes for standalone methods */
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int bsdauth_init(const struct sudoers_context *ctx, struct passwd *pw, sudo_auth *auth);
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int bsdauth_verify(const struct sudoers_context *ctx, struct passwd *pw, const char *prompt, sudo_auth *auth, struct sudo_conv_callback *callback);
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int bsdauth_approval(const struct sudoers_context *ctx, struct passwd *pw, sudo_auth *auth, bool exempt);
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int bsdauth_cleanup(const struct sudoers_context *ctx, struct passwd *pw, sudo_auth *auth, bool force);
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void bsdauth_set_style(const char *style);
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int sudo_aix_init(const struct sudoers_context *ctx, struct passwd *pw, sudo_auth *auth);
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int sudo_aix_verify(const struct sudoers_context *ctx, struct passwd *pw, const char *pass, sudo_auth *auth, struct sudo_conv_callback *callback);
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int sudo_aix_cleanup(const struct sudoers_context *ctx, struct passwd *pw, sudo_auth *auth, bool force);
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int sudo_fwtk_init(const struct sudoers_context *ctx, struct passwd *pw, sudo_auth *auth);
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int sudo_fwtk_verify(const struct sudoers_context *ctx, struct passwd *pw, const char *prompt, sudo_auth *auth, struct sudo_conv_callback *callback);
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int sudo_fwtk_cleanup(const struct sudoers_context *ctx, struct passwd *pw, sudo_auth *auth, bool force);
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int sudo_pam_init(const struct sudoers_context *ctx, struct passwd *pw, sudo_auth *auth);
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int sudo_pam_init_quiet(const struct sudoers_context *ctx, struct passwd *pw, sudo_auth *auth);
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int sudo_pam_verify(const struct sudoers_context *ctx, struct passwd *pw, const char *prompt, sudo_auth *auth, struct sudo_conv_callback *callback);
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int sudo_pam_approval(const struct sudoers_context *ctx, struct passwd *pw, sudo_auth *auth, bool exempt);
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int sudo_pam_cleanup(const struct sudoers_context *ctx, struct passwd *pw, sudo_auth *auth, bool force);
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int sudo_pam_begin_session(const struct sudoers_context *ctx, struct passwd *pw, char **user_env[], sudo_auth *auth);
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int sudo_pam_end_session(sudo_auth *auth);
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int sudo_securid_init(const struct sudoers_context *ctx, struct passwd *pw, sudo_auth *auth);
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int sudo_securid_setup(const struct sudoers_context *ctx, struct passwd *pw, char **prompt, sudo_auth *auth);
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int sudo_securid_verify(const struct sudoers_context *ctx, struct passwd *pw, const char *pass, sudo_auth *auth, struct sudo_conv_callback *callback);
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int sudo_sia_setup(const struct sudoers_context *ctx, struct passwd *pw, char **prompt, sudo_auth *auth);
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int sudo_sia_verify(const struct sudoers_context *ctx, struct passwd *pw, const char *prompt, sudo_auth *auth, struct sudo_conv_callback *callback);
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int sudo_sia_cleanup(const struct sudoers_context *ctx, struct passwd *pw, sudo_auth *auth, bool force);
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int sudo_sia_begin_session(const struct sudoers_context *ctx, struct passwd *pw, char **user_env[], sudo_auth *auth);
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/* Prototypes for normal methods */
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int sudo_afs_verify(const struct sudoers_context *ctx, struct passwd *pw, const char *pass, sudo_auth *auth, struct sudo_conv_callback *callback);
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int sudo_dce_verify(const struct sudoers_context *ctx, struct passwd *pw, const char *pass, sudo_auth *auth, struct sudo_conv_callback *callback);
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int sudo_krb5_init(const struct sudoers_context *ctx, struct passwd *pw, sudo_auth *auth);
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int sudo_krb5_setup(const struct sudoers_context *ctx, struct passwd *pw, char **prompt, sudo_auth *auth);
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int sudo_krb5_verify(const struct sudoers_context *ctx, struct passwd *pw, const char *pass, sudo_auth *auth, struct sudo_conv_callback *callback);
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int sudo_krb5_cleanup(const struct sudoers_context *ctx, struct passwd *pw, sudo_auth *auth, bool force);
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int sudo_passwd_init(const struct sudoers_context *ctx, struct passwd *pw, sudo_auth *auth);
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int sudo_passwd_verify(const struct sudoers_context *ctx, struct passwd *pw, const char *pass, sudo_auth *auth, struct sudo_conv_callback *callback);
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int sudo_passwd_cleanup(const struct sudoers_context *ctx, struct passwd *pw, sudo_auth *auth, bool force);
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int sudo_rfc1938_setup(const struct sudoers_context *ctx, struct passwd *pw, char **prompt, sudo_auth *auth);
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int sudo_rfc1938_verify(const struct sudoers_context *ctx, struct passwd *pw, const char *pass, sudo_auth *auth, struct sudo_conv_callback *callback);
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int sudo_secureware_init(const struct sudoers_context *ctx, struct passwd *pw, sudo_auth *auth);
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int sudo_secureware_verify(const struct sudoers_context *ctx, struct passwd *pw, const char *pass, sudo_auth *auth, struct sudo_conv_callback *callback);
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int sudo_secureware_cleanup(const struct sudoers_context *ctx, struct passwd *pw, sudo_auth *auth, bool force);
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/* Fields: name, flags, init, setup, verify, approval, cleanup, begin_sess, end_sess */
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#define AUTH_ENTRY(n, f, i, s, v, a, c, b, e) \
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{ (f), AUTH_FAILURE, (n), NULL, (i), (s), (v), (a), (c) , (b), (e) },
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#endif /* SUDO_AUTH_H */
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