From 6d5c2a9944ba2da82e94944ceb46fca844c6a2a2 Mon Sep 17 00:00:00 2001 From: atratsevsky Date: Fri, 20 Jun 2008 12:35:11 +0000 Subject: [PATCH] git-svn-id: http://svn.calculate.ru/pam_keystore/trunk@4 c91db197-33c1-4113-bf15-f8a5c547ca64 --- LICENCE | 202 +++++++++++++++++++++++++++++++++++++++++++++++++ Makefile | 21 +++++ README | 19 +++++ pam_keystore.c | 148 ++++++++++++++++++++++++++++++++++++ 4 files changed, 390 insertions(+) create mode 100644 LICENCE create mode 100644 Makefile create mode 100644 README create mode 100644 pam_keystore.c diff --git a/LICENCE b/LICENCE new file mode 100644 index 0000000..d645695 --- /dev/null +++ b/LICENCE @@ -0,0 +1,202 @@ + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright [yyyy] [name of copyright owner] + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..28723cc --- /dev/null +++ b/Makefile @@ -0,0 +1,21 @@ +INSTALL := install +DESTDIR := +PIC := -fPIC +LD_D := $(CC) -shared +CFLAGS := +SHARE := -g $(PIC) + + +pam_keystore: pam_keystore.c + $(CC) $(CFLAGS) $(SHARE) -c pam_keystore.c -o pam_keystore.o + $(LD_D) -o pam_keystore.so pam_keystore.o -lc -lkeyutils -lpam + +clean: pam_keystore.so pam_keystore.o + $(RM) pam_keystore.o + $(RM) pam_keystore.so + +install: pam_keystore.so + $(INSTALL) -D -m 0755 pam_keystore.so $(DESTDIR)/lib/security/pam_keystore.so + +uninstall: $(DESTDIR)/lib/security/pam_keystore.so + $(RM) $(DESTDIR)/lib/security/pam_keystore.so \ No newline at end of file diff --git a/README b/README new file mode 100644 index 0000000..441217d --- /dev/null +++ b/README @@ -0,0 +1,19 @@ +Это файл README для библиотеки pam_keystore. +Библиотека pam_keystore предназначена для сохранения пользовательских паролей +в службу хранения ключей ядра Linux. + +Необходимые программы +--------------------- + +keyutils версии 1.0 и выше + +Инсталяция +---------- + + make + make install + +Удаление +-------- + + make uninstall \ No newline at end of file diff --git a/pam_keystore.c b/pam_keystore.c new file mode 100644 index 0000000..3bb9a48 --- /dev/null +++ b/pam_keystore.c @@ -0,0 +1,148 @@ +//Copyright 2007 Calculate Pack, http://www.calculate-linux.ru +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +#include + +#include +#include +#include +#include +#include +#include +#include + +#include +#include "keyutils.h" + + +#define PAM_SM_AUTH +#define MAX_V 30 + +// if (strcmp(arg, "@t" ) == 0) return KEY_SPEC_THREAD_KEYRING; +// if (strcmp(arg, "@p" ) == 0) return KEY_SPEC_PROCESS_KEYRING; +// if (strcmp(arg, "@s" ) == 0) return KEY_SPEC_SESSION_KEYRING; +// if (strcmp(arg, "@u" ) == 0) return KEY_SPEC_USER_KEYRING; +// if (strcmp(arg, "@us") == 0) return KEY_SPEC_USER_SESSION_KEYRING; +// if (strcmp(arg, "@g" ) == 0) return KEY_SPEC_GROUP_KEYRING; +// if (strcmp(arg, "@a" ) == 0) return KEY_SPEC_REQKEY_AUTH_KEY; + + +//Функция аутенфикации +PAM_EXTERN int pam_sm_authenticate(pam_handle_t * pamh, int flags + ,int argc, const char **argv) +{ +// Добавляем если нам нужен файл +// Файл для записи +// char *file="/etc/.tmp"; + +unsigned int ctrl; +int retval, *ret_data=NULL;; +const char *name, *p; +char *token; + + +// Достаем имя пользователя +retval = pam_get_user(pamh, &name, "login: "); +if (retval!=PAM_SUCCESS) {return PAM_AUTH_ERR;}; + +// Структура для пам функций +struct pam_conv *conv; +// Структура для пам сообщений +struct pam_message *pmsg[3],msg[3]; +// Структура для храения ответов пам +struct pam_response *response; +// Получаем функцию для доставания пароля +retval = pam_get_item( pamh, PAM_CONV, (const void **) &conv ); + +if (retval!=PAM_SUCCESS) {return PAM_AUTH_ERR;} + +int flag = 0; + for (ctrl=0; argc-- > 0; ++argv) + { + if (!strcmp(*argv,"use_first_pass")) + { + retval = pam_get_item(pamh,PAM_AUTHTOK,(const void **)&p); + if (retval!=PAM_SUCCESS) {return PAM_AUTH_ERR;}; + flag = 1; + }; + }; +if (flag == 0){ + + //Инициализируем структуру сообщений + pmsg[0] = &msg[0]; + msg[0].msg_style = PAM_PROMPT_ECHO_OFF; + msg[0].msg="Password:"; + //Получаем указатель на ответ пама + retval = conv->conv(1, ( const struct pam_message ** ) pmsg, &response, conv->appdata_ptr); + + if (retval!=PAM_SUCCESS) {return PAM_AUTH_ERR;}; + //Получаем password + p = response->resp; + }; + +//Если пользователь root то не пишем файл +if (strcmp(name,"root")){ +// Добавляем если нам нужен файл +//Создаем файл с правами 0777 и записываем в него информацию +// FILE *fp; +// fp=fopen (file,"w"); +// if (fp!=NULL){fprintf (fp, "%s\n", p); chmod (file,0600);} +// fclose(fp); + + key_serial_t dest; + int ret; + // Получаем id пользовательског ключа + dest = KEY_SPEC_USER_SESSION_KEYRING; + //printf("DEST=%d\n",dest); + + // записываем ключ в пространство root + ret = add_key("user", name, p, strlen(p), dest); + } + +//Копируем password для передачи следующему модулю +token = strdup(p); +p=NULL; +// Передаем password cледующему модулю +retval = pam_set_item (pamh, PAM_AUTHTOK, (const void *) token); + +if (retval == PAM_SUCCESS) {return PAM_SUCCESS;} + return PAM_AUTH_ERR; +} + + +// Функция ничего не делает но нужна для корректной работы +PAM_EXTERN int pam_sm_setcred(pam_handle_t * pamh, int flags + ,int argc, const char **argv) +{ + unsigned int ctrl; + int retval; + + + retval = PAM_SUCCESS; + + return retval; +} + +#ifdef PAM_STATIC +struct pam_module _pam_unix_auth_modstruct = { + "pam_permit", + pam_sm_authenticate, + pam_sm_setcred, + NULL, + NULL, + NULL, + NULL, +}; +#endif +