diff options
Diffstat (limited to 'modules/pam_canonicalize_user')
| -rw-r--r-- | modules/pam_canonicalize_user/Makefile.am | 3 | ||||
| -rw-r--r-- | modules/pam_canonicalize_user/tst-pam_canonicalize_user-retval.c | 197 |
2 files changed, 200 insertions, 0 deletions
diff --git a/modules/pam_canonicalize_user/Makefile.am b/modules/pam_canonicalize_user/Makefile.am index 04188a13..0fd16521 100644 --- a/modules/pam_canonicalize_user/Makefile.am +++ b/modules/pam_canonicalize_user/Makefile.am @@ -27,6 +27,9 @@ endif securelib_LTLIBRARIES = pam_canonicalize_user.la pam_canonicalize_user_la_LIBADD = $(top_builddir)/libpam/libpam.la +check_PROGRAMS = tst-pam_canonicalize_user-retval +tst_pam_canonicalize_user_retval_LDADD = $(top_builddir)/libpam/libpam.la + if ENABLE_REGENERATE_MAN dist_noinst_DATA = README -include $(top_srcdir)/Make.xml.rules diff --git a/modules/pam_canonicalize_user/tst-pam_canonicalize_user-retval.c b/modules/pam_canonicalize_user/tst-pam_canonicalize_user-retval.c new file mode 100644 index 00000000..761aa310 --- /dev/null +++ b/modules/pam_canonicalize_user/tst-pam_canonicalize_user-retval.c @@ -0,0 +1,197 @@ +/* + * Check pam_canonicalize_user return values. + * + * Copyright (c) 2023 Dmitry V. Levin <ldv@strace.io> + */ + +#include "test_assert.h" + +#include <errno.h> +#include <limits.h> +#include <pwd.h> +#include <stdio.h> +#include <string.h> +#include <unistd.h> +#include <security/pam_appl.h> + +#define MODULE_NAME "pam_canonicalize_user" +#define TEST_NAME "tst-" MODULE_NAME "-retval" + +static const char service_file[] = TEST_NAME ".service"; +static struct pam_conv null_conv; + +static int +again_conv_func(int num_msg UNUSED, const struct pam_message **msg UNUSED, + struct pam_response **resp UNUSED, void *appdata_ptr UNUSED) +{ + return PAM_CONV_AGAIN; +} + +static struct pam_conv again_conv = { .conv = again_conv_func }; + +#ifdef HAVE_GETPWNAM_R + +int +getpwnam_r(const char *name, struct passwd *pwd, char *buf, size_t buflen, struct passwd **result) +{ + if (strcmp(name, "root") == 0 || + strcmp(name, "ROOT") == 0) + return getpwuid_r(0, pwd, buf, buflen, result); + + *result = NULL; + return 0; +} + +#else /* !HAVE_GETPWNAM_R */ + +struct passwd * +getpwnam(const char *name) +{ + if (strcmp(name, "root") == 0 || + strcmp(name, "ROOT") == 0) + return getpwuid(0); + + errno = 0; + return NULL; +} + +#endif /* !HAVE_GETPWNAM_R */ + +int +main(void) +{ + pam_handle_t *pamh = NULL; + FILE *fp; + + char cwd[PATH_MAX]; + ASSERT_NE(NULL, getcwd(cwd, sizeof(cwd))); + + struct passwd *pw; + ASSERT_NE(NULL, (pw = getpwuid(0))); + ASSERT_EQ(0, strcmp("root", pw->pw_name)); + + /* PAM_USER_UNKNOWN */ + ASSERT_NE(NULL, fp = fopen(service_file, "w")); + ASSERT_LT(0, fprintf(fp, "#%%PAM-1.0\n" + "auth required %s/.libs/%s.so\n" + "account required %s/.libs/%s.so\n" + "password required %s/.libs/%s.so\n" + "session required %s/.libs/%s.so\n", + cwd, MODULE_NAME, + cwd, MODULE_NAME, + cwd, MODULE_NAME, + cwd, MODULE_NAME)); + ASSERT_EQ(0, fclose(fp)); + + ASSERT_EQ(PAM_SUCCESS, + pam_start_confdir(service_file, ":", &null_conv, ".", &pamh)); + ASSERT_NE(NULL, pamh); + ASSERT_EQ(PAM_USER_UNKNOWN, pam_authenticate(pamh, 0)); + ASSERT_EQ(PAM_USER_UNKNOWN, pam_setcred(pamh, 0)); + ASSERT_EQ(PAM_MODULE_UNKNOWN, pam_acct_mgmt(pamh, 0)); + ASSERT_EQ(PAM_MODULE_UNKNOWN, pam_chauthtok(pamh, 0)); + ASSERT_EQ(PAM_MODULE_UNKNOWN, pam_open_session(pamh, 0)); + ASSERT_EQ(PAM_MODULE_UNKNOWN, pam_close_session(pamh, 0)); + ASSERT_EQ(PAM_SUCCESS, pam_end(pamh, 0)); + pamh = NULL; + + /* PAM_IGNORE -> PAM_PERM_DENIED */ + ASSERT_NE(NULL, fp = fopen(service_file, "w")); + ASSERT_LT(0, fprintf(fp, "#%%PAM-1.0\n" + "auth required %s/.libs/%s.so\n" + "account required %s/.libs/%s.so\n" + "password required %s/.libs/%s.so\n" + "session required %s/.libs/%s.so\n", + cwd, MODULE_NAME, + cwd, MODULE_NAME, + cwd, MODULE_NAME, + cwd, MODULE_NAME)); + ASSERT_EQ(0, fclose(fp)); + + ASSERT_EQ(PAM_SUCCESS, + pam_start_confdir(service_file, "root", &null_conv, ".", &pamh)); + ASSERT_NE(NULL, pamh); + ASSERT_EQ(PAM_PERM_DENIED, pam_authenticate(pamh, 0)); + ASSERT_EQ(PAM_PERM_DENIED, pam_setcred(pamh, 0)); + ASSERT_EQ(PAM_MODULE_UNKNOWN, pam_acct_mgmt(pamh, 0)); + ASSERT_EQ(PAM_MODULE_UNKNOWN, pam_chauthtok(pamh, 0)); + ASSERT_EQ(PAM_MODULE_UNKNOWN, pam_open_session(pamh, 0)); + ASSERT_EQ(PAM_MODULE_UNKNOWN, pam_close_session(pamh, 0)); + ASSERT_EQ(PAM_SUCCESS, pam_end(pamh, 0)); + pamh = NULL; + + /* PAM_IGNORE -> PAM_SUCCESS */ + ASSERT_NE(NULL, fp = fopen(service_file, "w")); + ASSERT_LT(0, fprintf(fp, "#%%PAM-1.0\n" + "auth required %s/.libs/%s.so\n" + "auth required %s/../pam_permit/.libs/pam_permit.so\n" + "account required %s/.libs/%s.so\n" + "account required %s/../pam_permit/.libs/pam_permit.so\n" + "password required %s/.libs/%s.so\n" + "password required %s/../pam_permit/.libs/pam_permit.so\n" + "session required %s/.libs/%s.so\n" + "session required %s/../pam_permit/.libs/pam_permit.so\n", + cwd, MODULE_NAME, cwd, + cwd, MODULE_NAME, cwd, + cwd, MODULE_NAME, cwd, + cwd, MODULE_NAME, cwd)); + ASSERT_EQ(0, fclose(fp)); + + ASSERT_EQ(PAM_SUCCESS, + pam_start_confdir(service_file, "root", &null_conv, ".", &pamh)); + ASSERT_NE(NULL, pamh); + ASSERT_EQ(PAM_SUCCESS, pam_authenticate(pamh, 0)); + ASSERT_EQ(PAM_SUCCESS, pam_setcred(pamh, 0)); + ASSERT_EQ(PAM_MODULE_UNKNOWN, pam_acct_mgmt(pamh, 0)); + ASSERT_EQ(PAM_MODULE_UNKNOWN, pam_chauthtok(pamh, 0)); + ASSERT_EQ(PAM_MODULE_UNKNOWN, pam_open_session(pamh, 0)); + ASSERT_EQ(PAM_MODULE_UNKNOWN, pam_close_session(pamh, 0)); + ASSERT_EQ(PAM_SUCCESS, pam_end(pamh, 0)); + pamh = NULL; + + /* PAM_INCOMPLETE */ + ASSERT_EQ(PAM_SUCCESS, + pam_start_confdir(service_file, NULL, &again_conv, ".", &pamh)); + ASSERT_NE(NULL, pamh); + ASSERT_EQ(PAM_INCOMPLETE, pam_authenticate(pamh, 0)); + ASSERT_EQ(PAM_INCOMPLETE, pam_setcred(pamh, 0)); + ASSERT_EQ(PAM_MODULE_UNKNOWN, pam_acct_mgmt(pamh, 0)); + ASSERT_EQ(PAM_MODULE_UNKNOWN, pam_chauthtok(pamh, 0)); + ASSERT_EQ(PAM_MODULE_UNKNOWN, pam_open_session(pamh, 0)); + ASSERT_EQ(PAM_MODULE_UNKNOWN, pam_close_session(pamh, 0)); + ASSERT_EQ(PAM_SUCCESS, pam_end(pamh, 0)); + pamh = NULL; + + /* PAM_IGNORE -> PAM_SUCCESS, "ROOT" -> "root" */ + ASSERT_NE(NULL, fp = fopen(service_file, "w")); + ASSERT_LT(0, fprintf(fp, "#%%PAM-1.0\n" + "auth required %s/.libs/%s.so\n" + "auth required %s/../pam_succseed_if/.libs/pam_succseed_if.so user = root\n" + "account required %s/.libs/%s.so\n" + "account required %s/../pam_succseed_if/.libs/pam_succseed_if.so user = root\n" + "password required %s/.libs/%s.so\n" + "password required %s/../pam_succseed_if/.libs/pam_succseed_if.so user = root\n" + "session required %s/.libs/%s.so\n" + "session required %s/../pam_succseed_if/.libs/pam_succseed_if.so user = root\n", + cwd, MODULE_NAME, cwd, + cwd, MODULE_NAME, cwd, + cwd, MODULE_NAME, cwd, + cwd, MODULE_NAME, cwd)); + ASSERT_EQ(0, fclose(fp)); + + ASSERT_EQ(PAM_SUCCESS, + pam_start_confdir(service_file, "ROOT", &null_conv, ".", &pamh)); + ASSERT_NE(NULL, pamh); + ASSERT_EQ(PAM_SUCCESS, pam_authenticate(pamh, 0)); + ASSERT_EQ(PAM_SUCCESS, pam_setcred(pamh, 0)); + ASSERT_EQ(PAM_MODULE_UNKNOWN, pam_acct_mgmt(pamh, 0)); + ASSERT_EQ(PAM_MODULE_UNKNOWN, pam_chauthtok(pamh, 0)); + ASSERT_EQ(PAM_MODULE_UNKNOWN, pam_open_session(pamh, 0)); + ASSERT_EQ(PAM_MODULE_UNKNOWN, pam_close_session(pamh, 0)); + ASSERT_EQ(PAM_SUCCESS, pam_end(pamh, 0)); + pamh = NULL; + + ASSERT_EQ(0, unlink(service_file)); + + return 0; +} |