diff options
Diffstat (limited to 'plugins/sudoers/auth/secureware.c')
| -rw-r--r-- | plugins/sudoers/auth/secureware.c | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/plugins/sudoers/auth/secureware.c b/plugins/sudoers/auth/secureware.c new file mode 100644 index 0000000..49a4b4e --- /dev/null +++ b/plugins/sudoers/auth/secureware.c @@ -0,0 +1,113 @@ +/* + * SPDX-License-Identifier: ISC + * + * Copyright (c) 1998-2005, 2010-2015 Todd C. Miller <Todd.Miller@sudo.ws> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Sponsored in part by the Defense Advanced Research Projects + * Agency (DARPA) and Air Force Research Laboratory, Air Force + * Materiel Command, USAF, under agreement number F39502-99-1-0512. + */ + +/* + * This is an open source non-commercial project. Dear PVS-Studio, please check it. + * PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com + */ + +#include <config.h> + +#ifdef HAVE_GETPRPWNAM + +#include <sys/types.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <pwd.h> +#ifdef __hpux +# undef MAXINT +# include <hpsecurity.h> +#else +# include <sys/security.h> +#endif /* __hpux */ +#include <prot.h> + +#include "sudoers.h" +#include "sudo_auth.h" + +#ifdef __alpha +extern int crypt_type; +#endif + +int +sudo_secureware_init(struct passwd *pw, sudo_auth *auth) +{ + debug_decl(sudo_secureware_init, SUDOERS_DEBUG_AUTH); + + /* Only initialize once. */ + if (auth->data != NULL) + debug_return_int(AUTH_SUCCESS); + +#ifdef __alpha + if (crypt_type == INT_MAX) + debug_return_int(AUTH_FAILURE); /* no shadow */ +#endif + + sudo_setspent(); + auth->data = sudo_getepw(pw); + sudo_endspent(); + debug_return_int(auth->data ? AUTH_SUCCESS : AUTH_FATAL); +} + +int +sudo_secureware_verify(struct passwd *pw, const char *pass, sudo_auth *auth, struct sudo_conv_callback *callback) +{ + char *pw_epasswd = auth->data; + char *epass = NULL; + debug_decl(sudo_secureware_verify, SUDOERS_DEBUG_AUTH); + + /* An empty plain-text password must match an empty encrypted password. */ + if (pass[0] == '\0') + debug_return_int(pw_epasswd[0] ? AUTH_FAILURE : AUTH_SUCCESS); + +#if defined(__alpha) +# ifdef HAVE_DISPCRYPT + epass = dispcrypt(pass, pw_epasswd, crypt_type); +# else + if (crypt_type == AUTH_CRYPT_BIGCRYPT) + epass = bigcrypt(pass, pw_epasswd); + else if (crypt_type == AUTH_CRYPT_CRYPT16) + epass = crypt(pass, pw_epasswd); +# endif /* HAVE_DISPCRYPT */ +#elif defined(HAVE_BIGCRYPT) + epass = bigcrypt(pass, pw_epasswd); +#endif /* __alpha */ + + if (epass != NULL && strcmp(pw_epasswd, epass) == 0) + debug_return_int(AUTH_SUCCESS); + debug_return_int(AUTH_FAILURE); +} + +int +sudo_secureware_cleanup(struct passwd *pw, sudo_auth *auth, bool force) +{ + char *pw_epasswd = auth->data; + debug_decl(sudo_secureware_cleanup, SUDOERS_DEBUG_AUTH); + + if (pw_epasswd != NULL) + freezero(pw_epasswd, strlen(pw_epasswd)); + debug_return_int(AUTH_SUCCESS); +} + +#endif /* HAVE_GETPRPWNAM */ |