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07070100000001000081A40000000000000000000000015DC946E70000894B000000000000000000000000000000000000002200000000pam-test-0.0+git.20191111/COPYING                    GNU GENERAL PUBLIC LICENSE
                       Version 3, 29 June 2007

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How to Apply These Terms to Your New Programs

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Also add information on how to contact you by electronic and paper mail.

If the program does terminal interaction, make it output a short
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The hypothetical commands `show w' and `show c' should show the appropriate
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You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>.

The GNU General Public License does not permit incorporating your program
into proprietary programs.  If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library.  If this is what you want to do, use the GNU Lesser General
Public License instead of this License.  But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.
07070100000002000081A40000000000000000000000015DC946E700000041000000000000000000000000000000000000002300000000pam-test-0.0+git.20191111/Makefilepam_test: src/main.c
	gcc -o pam_test src/main.c -lpam -lpam_misc07070100000003000081A40000000000000000000000015DC946E7000012D1000000000000000000000000000000000000002400000000pam-test-0.0+git.20191111/README.md# PAM Test

This application can be used to test a PAM stack for authentication
and password change.

# Example

1. Compile the source.

```bash
$ cd /source/dir
$ make
```

## Using the application

2. Create a PAM stack at `/etc/pam.d/pam_test`
3. Test authentication

```bash
$ ./pam_test auth pam-test
auth        required      pam_env.so
auth        sufficient    pam_unix.so nullok try_first_pass
auth        requisite     pam_succeed_if.so uid >= 1000 quiet_success
auth        required      pam_deny.so

account     required      pam_unix.so
account     sufficient    pam_localuser.so
account     sufficient    pam_succeed_if.so uid < 1000 quiet
account     required      pam_permit.so

password    requisite     pam_pwquality.so try_first_pass local_users_only retry=3 authtok_type=
password    sufficient    pam_unix.so md5 shadow nullok try_first_pass use_authtok
password    required      pam_deny.so

Password:

pam_start returned [0]: Success
pam_authenticate returned [0]: Success
pam_acct_mgmt returned [0]: Success
pam_end returned [0]: Success

Authentication successful.
```

3. Test password change

```bash
$ ./pam_test chpass pam-test
auth        required      pam_env.so
auth        sufficient    pam_unix.so nullok try_first_pass
auth        requisite     pam_succeed_if.so uid >= 1000 quiet_success
auth        required      pam_deny.so

account     required      pam_unix.so
account     sufficient    pam_localuser.so
account     sufficient    pam_succeed_if.so uid < 1000 quiet
account     required      pam_permit.so

Password: 
Changing password for pam-test.
(current) UNIX password: 
New password: 
Retype new password:

pam_start returned [0]: Success
pam_authenticate returned [0]: Success
pam_acct_mgmt returned [0]: Success
pam_chauthtok returned [0]: Success

Password changed.
```

## Using shell script

```bash
$ . pam_test.sh
$ pam-test-auth --help
Test selected pam stack against authentication.

PAM stack @STACK is copied to /etc/pam.d/pam_test and pam_test 
application is run with @USERNAME. @PASSWORD is automatically 
passed to standard input.

Usage:
pam-test-auth STACK USERNAME PASSWORD

$ pam-test-chpass --help
Test selected pam stack against password change.

PAM stack @STACK is copied to /etc/pam.d/pam_test and pam_test 
application is run with @USERNAME. @PASSWORD is automatically 
passed to standard input.

Usage:
pam-test-chpass STACK USERNAME PASSWORD NEWPASSWORD
```

# PAM Modules

This is a basic description of commonly used PAM modules.

* **pam_env** -- set environment variables
```
auth, session
```
* **pam_unix** -- local authentication from `/etc/passwd`
```
access, auth, password, session
```
* **pam_succeed_if** -- test account characteristics
```
access, auth, password, session
```
* **pam_deny** -- always fail
```
access, auth, password, session
```
* **pam_localuser** -- success if it is a local user from `/etc/passwd`
```
access, auth, password, session
```
* **pam_permit** -- always succeed
```
access, auth, password, session
```
* **pam_keyinit** -- initialize kernel session keyring
```
session
```
* **pam_limits** -- limit resources per setting in `limits.conf`
```
session
```
* **pam_systemd** -- register user session with systemd login manager
```
session
```
* **pam_sss** -- authenticate against SSSD
```
access, auth, password, session
```
* **pam_ldap** -- authenticate against LDAP
```
access, auth, password, session
```
* **pam_krb5** -- authenticate against Kerberos
```
access, auth, password, session
```
* **pam_winbind** -- authenticate against Winbind
```
access, auth, password, session
```
* **pksc11** -- authenticate using a smartcard
```
auth
```
* **pam_fprintd** -- authenticate using a fingerprint
```
auth
```
* **pam_ecryptfs** -- unwrap ecrypt passphrase and mount encrypted directory
```
auth, session
```
* **pam_oddjob_mkhomedir** -- create home directory if it does not exist yet
```
session
```
* **pam_pwquality** -- force password policy
```
password
```
* **pam_faillock** -- lock account if authentication failed too many times
```
auth, account
```07070100000004000081ED0000000000000000000000015DC946E7000008FA000000000000000000000000000000000000002600000000pam-test-0.0+git.20191111/pam_test.sh#!/bin/bash
#
#    Authors:
#        Pavel Březina <pbrezina@redhat.com>
#
#    Copyright (C) 2016 Red Hat
#
#    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 3 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, see <http://www.gnu.org/licenses/>.
#
#
# Test selected pam stack against authentication.
#
# Usage: pam_test.sh stack username password
#

should-print-help() {
    if [[ $# -eq 0 ||  "$1" == "-h" || "$1" == "--help" ]]
    then
        return 0
    fi
    
    return 1
}

pam-test-auth() {
    if should-print-help $@
    then 
        echo "Test selected pam stack against authentication."
        echo ""
        echo "PAM stack @STACK is copied to /etc/pam.d/pam_test and pam_test "
        echo "application is run with @USERNAME. @PASSWORD is automatically "
        echo "passed to standard input."
        echo ""
        echo "Usage:"
        echo "$0 STACK USERNAME PASSWORD" 
        echo ""
        return 0
    fi

local STACK=$1
    local USERNAME=$2
    local PASSWORD=$3
 
    sudo cp -f $STACK /etc/pam.d/pam_test \
        && echo "$PASSWORD" | ./pam_test auth $USERNAME
}

pam-test-chpass() {
    if should-print-help $@
    then 
        echo "Test selected pam stack against password change."
        echo ""
        echo "PAM stack @STACK is copied to /etc/pam.d/pam_test and pam_test "
        echo "application is run with @USERNAME. @PASSWORD is automatically "
        echo "passed to standard input."
        echo ""
        echo "Usage:"
        echo "$0 STACK USERNAME PASSWORD NEWPASSWORD" 
        echo ""
        return 0
    fi

local STACK=$1
    local USERNAME=$2
    local PASSWORD=$3
    local NEWPASSWORD=$4
 
    sudo cp -f $STACK /etc/pam.d/pam_test \
        && echo "$PASSWORD" | ./pam_test auth $USERNAME
}
07070100000005000041ED0000000000000000000000015DC946E700000000000000000000000000000000000000000000001E00000000pam-test-0.0+git.20191111/src07070100000006000081A40000000000000000000000015DC946E700001368000000000000000000000000000000000000002500000000pam-test-0.0+git.20191111/src/main.c/*
    Authors:
        Pavel Březina <pbrezina@redhat.com>

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 3 of the License, or
    (at your option) any later version.

You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#define _GNU_SOURCE
#include <security/pam_appl.h>
#include <security/pam_misc.h>
#include <stdio.h>

#define PAM_TEST_SERVICE "pam_test"
#define PAM_TEST_STACK "/etc/pam.d/" PAM_TEST_SERVICE

#define CHECK_PAM_STATUS(what, handle, ret, msgs, i, label) do {            \
    asprintf(&msgs[i++], "%s returned [%d]: %s",                            \
             what, ret, pam_strerror(handle, ret));                         \
    if (ret != PAM_SUCCESS) {                                               \
        goto label;                                                         \
    }                                                                       \
} while (0)

enum pam_test_op {
    PAM_TEST_AUTH,
    PAM_TEST_CHPASS,

PAM_TEST_INVALID
};

static enum pam_test_op parse_operation(const char *operation)
{
    if (strcmp("auth", operation) == 0) {
        return PAM_TEST_AUTH;
    } else if (strcmp("chpass", operation) == 0) {
        return PAM_TEST_CHPASS;
    }

return PAM_TEST_INVALID;
}

static void print_pam_stack(const char *stack)
{
    FILE *file;
    int c;

file = fopen(stack, "r");
    if (file == NULL) {
        return;
    }

while ((c = fgetc(file)) != EOF) {
        putchar(c);
    }

putchar('\n');

fclose(file);

return;
}

static int test_auth(const char *user)
{
    pam_handle_t *pamh;
    char *msgs[4] = {0};
    int i = 0;
    int ret;

static struct pam_conv conv = {
        misc_conv,
        NULL
    };

ret = pam_start(PAM_TEST_SERVICE, user, &conv, &pamh);
    CHECK_PAM_STATUS("pam_start", pamh, ret, msgs, i, done);

ret = pam_authenticate(pamh, 0);
    CHECK_PAM_STATUS("pam_authenticate", pamh, ret, msgs, i, done);

ret = pam_acct_mgmt(pamh, 0);
    CHECK_PAM_STATUS("pam_acct_mgmt", pamh, ret, msgs, i, done);

ret = pam_end(pamh, ret);
    CHECK_PAM_STATUS("pam_end", pamh, ret, msgs, i, done);

ret = PAM_SUCCESS;

done:
    printf("\n\n");

for (i = 0; i < sizeof(msgs) / sizeof(const char*); i++) {
        if (msgs[i] == NULL) {
            continue;
        }

puts(msgs[i]);
        free(msgs[i]);
    }

return ret;
}

static int test_chpass(const char *user)
{
    pam_handle_t *pamh;
    char *msgs[4] = {0};
    int i = 0;
    int ret;

static struct pam_conv conv = {
        misc_conv,
        NULL
    };

ret = pam_start(PAM_TEST_SERVICE, user, &conv, &pamh);
    CHECK_PAM_STATUS("pam_start", pamh, ret, msgs, i, done);

ret = pam_authenticate(pamh, 0);
    CHECK_PAM_STATUS("pam_authenticate", pamh, ret, msgs, i, done);

ret = pam_acct_mgmt(pamh, 0);
    CHECK_PAM_STATUS("pam_acct_mgmt", pamh, ret, msgs, i, done);

ret = pam_chauthtok(pamh, 0);
    CHECK_PAM_STATUS("pam_chauthtok", pamh, ret, msgs, i, done);

ret = pam_end(pamh, ret);
    CHECK_PAM_STATUS("pam_end", pamh, ret, msgs, i, done);

ret = PAM_SUCCESS;

done:
    printf("\n\n");

for (i = 0; i < sizeof(msgs) / sizeof(const char*); i++) {
        if (msgs[i] == NULL) {
            continue;
        }

puts(msgs[i]);
        free(msgs[i]);
    }

return ret;
}

int main(int argc, const char *argv[])
{
    enum pam_test_op op;
    const char *user;
    int ret;

if(argc != 3) {
        fprintf(stderr, "Usage: %s [auth|chpass] @username\n", argv[0]);
        return 1;
    }

user = argv[2];

/* PAM Stack for the service must exist. */
    if(access("/etc/pam.d/" PAM_TEST_SERVICE, F_OK) != 0) {
        fprintf(stderr, PAM_TEST_STACK " does not exist!\n");
        return 1;
    }

print_pam_stack(PAM_TEST_STACK);

op = parse_operation(argv[1]);
    switch (op) {
    case PAM_TEST_AUTH:
        ret = test_auth(user);
        if (ret == PAM_SUCCESS) {
            printf("\nAuthentication successful.\n");
        } else {
            printf("\nAuthentication failed.\n");
        }
        break;
    case PAM_TEST_CHPASS:
        ret = test_chpass(user);
        if (ret == PAM_SUCCESS) {
            printf("\nPassword changed.\n");
        } else {
            printf("\nPassword change failed.\n");
        }
        break;
    default:
        fprintf(stderr, "Invalid operation!\n");
        return 1;
    }

return ret;
}
07070100000007000041ED0000000000000000000000015DC946E700000000000000000000000000000000000000000000002100000000pam-test-0.0+git.20191111/stacks07070100000008000081A40000000000000000000000015DC946E700000314000000000000000000000000000000000000002D00000000pam-test-0.0+git.20191111/stacks/local-users# Local users only.

auth        required      pam_env.so
auth        sufficient    pam_unix.so nullok try_first_pass
auth        requisite     pam_succeed_if.so uid >= 1000 quiet_success
auth        required      pam_deny.so

account     required      pam_unix.so
account     sufficient    pam_localuser.so
account     sufficient    pam_succeed_if.so uid < 1000 quiet
account     required      pam_permit.so

password    sufficient    pam_unix.so md5 shadow nullok try_first_pass use_authtok
password    required      pam_deny.so

session     optional      pam_keyinit.so revoke
session     required      pam_limits.so
-session     optional      pam_systemd.so
session     [success=1 default=ignore] pam_succeed_if.so service in crond quiet use_uid
session     required      pam_unix.so
07070100000009000081A40000000000000000000000015DC946E7000000B1000000000000000000000000000000000000003000000000pam-test-0.0+git.20191111/stacks/system-default# System default configuration.

auth       include      system-auth
account    include      system-auth
password   include      system-auth
session    include      system-auth
07070100000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000B00000000TRAILER!!!98 blocks

Places

File pam-test-0.0+git.20191111.obscpio of Package pam-test

Places