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auth.h
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/* * ProFTPD - FTP server daemon * Copyright (c) 2004-2011 The ProFTPD Project team * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA. * * As a special exemption, the ProFTPD Project and other respective copyright * holders give permission to link this program with OpenSSL, and distribute * the resulting executable, without including the source code for OpenSSL in * the source distribution. */ /* ProFTPD Auth API * $Id: auth.h,v 1.14 2011/05/23 20:35:35 castaglia Exp $ */ #ifndef PR_AUTH_H #define PR_AUTH_H /* Possible return codes for auth handlers */ /* Account authenticated by means other than PASS (e.g. RFC2228 modules). * This value is more generic than PR_AUTH_RFC2228_OK. */ #define PR_AUTH_OK_NO_PASS 3 /* Account authenticated by RFC2228 security data exchange */ #define PR_AUTH_RFC2228_OK 2 /* Account authenticated normally */ #define PR_AUTH_OK 0 /* Error occurred in auth handler */ #define PR_AUTH_ERROR -1 /* Account does not exist */ #define PR_AUTH_NOPWD -2 /* Password mismatch */ #define PR_AUTH_BADPWD -3 /* Password hasn't been changed recently enough */ #define PR_AUTH_AGEPWD -4 /* Account has been disabled */ #define PR_AUTH_DISABLEDPWD -5 void pr_auth_setpwent(pool *); void pr_auth_endpwent(pool *); void pr_auth_setgrent(pool *); void pr_auth_endgrent(pool *); struct passwd *pr_auth_getpwent(pool *); struct group *pr_auth_getgrent(pool *); struct passwd *pr_auth_getpwnam(pool *, const char *); struct passwd *pr_auth_getpwuid(pool *, uid_t); struct group *pr_auth_getgrnam(pool *, const char *); struct group *pr_auth_getgrgid(pool *, gid_t); int pr_auth_authenticate(pool *, const char *, const char *); int pr_auth_authorize(pool *, const char *); int pr_auth_check(pool *, const char *, const char *, const char *); const char *pr_auth_uid2name(pool *, uid_t); const char *pr_auth_gid2name(pool *, gid_t); uid_t pr_auth_name2uid(pool *, const char *); gid_t pr_auth_name2gid(pool *, const char *); int pr_auth_getgroups(pool *, const char *, array_header **, array_header **); int pr_auth_requires_pass(pool *, const char *); /* This is a convenience function used by mod_auth as part of the * authentication process. Given a user name, retrieve the <Anonymous> * configuration for that user. If the user name is not be handled as * an anonymous login, NULL is returned. */ config_rec *pr_auth_get_anon_config(pool *p, char **, char **, char **); /* Wrapper function around the chroot(2) system call, handles setting of * appropriate environment variables if necessary. */ int pr_auth_chroot(const char *); /* Check the /etc/ftpusers file, as per the UseFtpUsers directive, to see * if the given user is allowed. Returns TRUE if the user is banned by * /etc/ftpusers, FALSE if not banned, and -1 if there was an error. */ int pr_auth_banned_by_ftpusers(xaset_t *, const char *); /* Check the /etc/shells file, as per the RequireValidShell directive, to * ensure that the given shell is valid. Returns TRUE if the user has * a valid shell, FALSE if an invalid shell, and -1 if there was an error. */ int pr_auth_is_valid_shell(xaset_t *, const char *); /* Add to the list of authenticating-only modules (e.g. PAM). */ int pr_auth_add_auth_only_module(const char *); /* Remove the named module from the list of authenticating-only modules. */ int pr_auth_remove_auth_only_module(const char *); /* Clear the authenticating-only module list, e.g. when authentication has * completed. */ int pr_auth_clear_auth_only_modules(void); /* Enable caching of certain data within the Auth API. */ int pr_auth_cache_set(int, unsigned int); #define PR_AUTH_CACHE_FL_UID2NAME 0x00001 #define PR_AUTH_CACHE_FL_GID2NAME 0x00002 #define PR_AUTH_CACHE_FL_AUTH_MODULE 0x00004 /* Wrapper function for retrieving the user's home directory. This handles * any possible RewriteHome configuration. */ char *pr_auth_get_home(pool *, char *pw_dir); /* For internal use only. */ int init_auth(void); int set_groups(pool *, gid_t, array_header *); #endif /* PR_MODULES_H */