diff options
Diffstat (limited to 't/t_pam_conv.c')
| -rw-r--r-- | t/t_pam_conv.c | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/t/t_pam_conv.c b/t/t_pam_conv.c new file mode 100644 index 000000000000..58e5c086c1b5 --- /dev/null +++ b/t/t_pam_conv.c @@ -0,0 +1,134 @@ +/*- + * Copyright (c) 2015 Dag-Erling Smørgrav + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote + * products derived from this software without specific prior written + * permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $Id: t_pam_conv.c 922 2017-02-19 19:28:30Z des $ + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include <err.h> +#include <errno.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include <cryb/test.h> + +#include <security/pam_appl.h> +#include <security/openpam.h> + +#include "openpam_impl.h" +#include "openpam_asprintf.h" + +#include "t_pam_conv.h" + +/* + * Conversation function + * + * The appdata argument points to a struct t_pam_conv_script which + * contains both the expected messages and the desired responses. If + * script.responses is NULL, t_pam_conv() will return PAM_CONV_ERR. If an + * error occurs (incorrect number of messages, messages don't match script + * etc.), script.comment will be set to point to a malloc()ed string + * describing the error. Otherwise, t_pam_conv() will return to its + * caller a malloc()ed copy of script.responses. + */ +int +t_pam_conv(int nm, const struct pam_message **msgs, + struct pam_response **respsp, void *ad) +{ + struct t_pam_conv_script *s = ad; + struct pam_response *resps; + int i; + + /* check message count */ + if (nm != s->nmsg) { + asprintf(&s->comment, "expected %d messages, got %d", + s->nmsg, nm); + return (PAM_CONV_ERR); + } + if (nm <= 0 || nm > PAM_MAX_NUM_MSG) { + /* since the previous test passed, this is intentional! */ + s->comment = NULL; + return (PAM_CONV_ERR); + } + + /* check each message and provide the sed answer */ + if ((resps = calloc(nm, sizeof *resps)) == NULL) + goto enomem; + for (i = 0; i < nm; ++i) { + if (msgs[i]->msg_style != s->msgs[i].msg_style) { + asprintf(&s->comment, + "message %d expected style %d got %d", i, + s->msgs[i].msg_style, msgs[i]->msg_style); + goto fail; + } + if (strcmp(msgs[i]->msg, s->msgs[i].msg) != 0) { + asprintf(&s->comment, + "message %d expected \"%s\" got \"%s\"", i, + s->msgs[i].msg, msgs[i]->msg); + goto fail; + } + switch (msgs[i]->msg_style) { + case PAM_PROMPT_ECHO_OFF: + t_verbose("[PAM_PROMPT_ECHO_OFF] %s\n", msgs[i]->msg); + break; + case PAM_PROMPT_ECHO_ON: + t_verbose("[PAM_PROMPT_ECHO_ON] %s\n", msgs[i]->msg); + break; + case PAM_ERROR_MSG: + t_verbose("[PAM_ERROR_MSG] %s\n", msgs[i]->msg); + break; + case PAM_TEXT_INFO: + t_verbose("[PAM_TEXT_INFO] %s\n", msgs[i]->msg); + break; + default: + asprintf(&s->comment, "invalid message style %d", + msgs[i]->msg_style); + goto fail; + } + /* copy the response, if there is one */ + if (s->resps[i].resp != NULL && + (resps[i].resp = strdup(s->resps[i].resp)) == NULL) + goto enomem; + resps[i].resp_retcode = s->resps[i].resp_retcode; + } + s->comment = NULL; + *respsp = resps; + return (PAM_SUCCESS); +enomem: + asprintf(&s->comment, "%s", strerror(ENOMEM)); +fail: + for (i = 0; i < nm; ++i) + free(resps[i].resp); + free(resps); + return (PAM_CONV_ERR); +} |