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authorSteve Langasek <steve.langasek@ubuntu.com>2019-01-03 16:26:05 -0800
committerSteve Langasek <steve.langasek@ubuntu.com>2019-01-03 17:26:38 -0800
commit9c52e721044e7501c3d4567b36d222dc7326224a (patch)
tree9011790770130c60a712a6f125ad50d60e07cc74 /modules/pam_stress
parent9727ff2a3fa0e94a42b34a579027bacf4146d571 (diff)
parent186ff16e8d12ff15d518000c17f115ccab5275a4 (diff)
New upstream version 1.0.1
Diffstat (limited to 'modules/pam_stress')
-rw-r--r--modules/pam_stress/Makefile.am20
-rw-r--r--modules/pam_stress/Makefile.in609
-rw-r--r--modules/pam_stress/README64
-rw-r--r--modules/pam_stress/pam_stress.c570
-rwxr-xr-xmodules/pam_stress/tst-pam_stress2
5 files changed, 1265 insertions, 0 deletions
diff --git a/modules/pam_stress/Makefile.am b/modules/pam_stress/Makefile.am
new file mode 100644
index 00000000..b5f80938
--- /dev/null
+++ b/modules/pam_stress/Makefile.am
@@ -0,0 +1,20 @@
+#
+# Copyright (c) 2005, 2006 Thorsten Kukuk <kukuk@suse.de>
+#
+
+CLEANFILES = *~
+
+EXTRA_DIST = README tst-pam_stress
+
+TESTS = tst-pam_stress
+
+securelibdir = $(SECUREDIR)
+secureconfdir = $(SCONFIGDIR)
+
+AM_CFLAGS = -I$(top_srcdir)/libpam/include -I$(top_srcdir)/libpamc/include
+AM_LDFLAGS = -no-undefined -avoid-version -module
+if HAVE_VERSIONING
+ AM_LDFLAGS += -Wl,--version-script=$(srcdir)/../modules.map
+endif
+securelib_LTLIBRARIES = pam_stress.la
+pam_stress_la_LIBADD = -L$(top_builddir)/libpam -lpam
diff --git a/modules/pam_stress/Makefile.in b/modules/pam_stress/Makefile.in
new file mode 100644
index 00000000..8dee3da0
--- /dev/null
+++ b/modules/pam_stress/Makefile.in
@@ -0,0 +1,609 @@
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+# @configure_input@
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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+ list='$(DISTFILES)'; \
+ dist_files=`for file in $$list; do echo $$file; done | \
+ sed -e "s|^$$srcdirstrip/||;t" \
+ -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+ case $$dist_files in \
+ */*) $(MKDIR_P) `echo "$$dist_files" | \
+ sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+ sort -u` ;; \
+ esac; \
+ for file in $$dist_files; do \
+ if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+ if test -d $$d/$$file; then \
+ dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+ if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+ cp -pR $(srcdir)/$$file $(distdir)$$dir || exit 1; \
+ fi; \
+ cp -pR $$d/$$file $(distdir)$$dir || exit 1; \
+ else \
+ test -f $(distdir)/$$file \
+ || cp -p $$d/$$file $(distdir)/$$file \
+ || exit 1; \
+ fi; \
+ done
+check-am: all-am
+ $(MAKE) $(AM_MAKEFLAGS) check-TESTS
+check: check-am
+all-am: Makefile $(LTLIBRARIES)
+installdirs:
+ for dir in "$(DESTDIR)$(securelibdir)"; do \
+ test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+ done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+ @$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ `test -z '$(STRIP)' || \
+ echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+mostlyclean-generic:
+
+clean-generic:
+ -test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
+
+distclean-generic:
+ -test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+
+maintainer-clean-generic:
+ @echo "This command is intended for maintainers to use"
+ @echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-securelibLTLIBRARIES \
+ mostlyclean-am
+
+distclean: distclean-am
+ -rm -rf ./$(DEPDIR)
+ -rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+ distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+info: info-am
+
+info-am:
+
+install-data-am: install-securelibLTLIBRARIES
+
+install-dvi: install-dvi-am
+
+install-exec-am:
+
+install-html: install-html-am
+
+install-info: install-info-am
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-ps: install-ps-am
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+ -rm -rf ./$(DEPDIR)
+ -rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+ mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-securelibLTLIBRARIES
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS all all-am check check-TESTS check-am clean \
+ clean-generic clean-libtool clean-securelibLTLIBRARIES ctags \
+ distclean distclean-compile distclean-generic \
+ distclean-libtool distclean-tags distdir dvi dvi-am html \
+ html-am info info-am install install-am install-data \
+ install-data-am install-dvi install-dvi-am install-exec \
+ install-exec-am install-html install-html-am install-info \
+ install-info-am install-man install-pdf install-pdf-am \
+ install-ps install-ps-am install-securelibLTLIBRARIES \
+ install-strip installcheck installcheck-am installdirs \
+ maintainer-clean maintainer-clean-generic mostlyclean \
+ mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+ pdf pdf-am ps ps-am tags uninstall uninstall-am \
+ uninstall-securelibLTLIBRARIES
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/modules/pam_stress/README b/modules/pam_stress/README
new file mode 100644
index 00000000..e64bf2d3
--- /dev/null
+++ b/modules/pam_stress/README
@@ -0,0 +1,64 @@
+#
+# This describes the behavior of this module with respect to the
+# /etc/pam.conf file.
+#
+# writen by Andrew Morgan <morgan@parc.power.net>
+#
+
+This module recognizes the following arguments.
+
+debug put lots of information in syslog.
+ *NOTE* this option writes passwords to syslog, so
+ don't use anything sensitive when testing.
+
+no_warn don't give warnings about things (otherwise warnings are issued
+ via the conversation function)
+
+use_first_pass don't prompt for a password, for pam_sm_authentication
+ function just use item PAM_AUTHTOK.
+
+try_first_pass don't prompt for a password unless there has been no
+ previous authentication token (item PAM_AUTHTOK is NULL)
+
+rootok This is intended for the pam_sm_chauthtok function and
+ it instructs this function to permit root to change
+ the user's password without entering the old password.
+
+The following arguments are acted on by the module. They are intended
+to make the module give the impression of failing as a fully
+functioning module might.
+
+expired an argument intended for the account and chauthtok module
+ parts. It instructs the module to act as if the user's
+ password has expired
+
+fail_1 this instructs the module to make its first function fail.
+
+fail_2 this instructs the module to make its second function (if there
+ is one) fail.
+
+ The function break up is indicated in the Module
+ Developers' Guide. Listed here it is:
+
+ service function 1 function 2
+ ------- ---------- ----------
+ auth pam_sm_authenticate pam_sm_setcred
+ password pam_sm_chauthtok
+ session pam_sm_open_session pam_sm_close_session
+ account pam_sm_acct_mgmt
+
+prelim for pam_sm_chauthtok, means fail on PAM_PRELIM_CHECK.
+
+required for pam_sm_chauthtok, means fail if the user hasn't already
+ been authenticated by this module. (See stress_new_pwd data
+ item below.)
+
+#
+# data strings that this module uses are the following:
+#
+
+data name value(s) Comments
+--------- -------- --------
+stress_new_pwd yes tells pam_sm_chauthtok that
+ pam_sm_acct_mgmt says we need a new
+ password
diff --git a/modules/pam_stress/pam_stress.c b/modules/pam_stress/pam_stress.c
new file mode 100644
index 00000000..c254868f
--- /dev/null
+++ b/modules/pam_stress/pam_stress.c
@@ -0,0 +1,570 @@
+/*
+ * pam_stress module
+ *
+ * created by Andrew Morgan <morgan@linux.kernel.org> 1996/3/12
+ */
+
+#include "config.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <syslog.h>
+
+#include <stdarg.h>
+#include <string.h>
+#include <unistd.h>
+
+/*
+ * here, we make definitions for the externally accessible functions
+ * in this file (these definitions are required for static modules
+ * but strongly encouraged generally) they are used to instruct the
+ * modules include file to define their prototypes.
+ */
+
+#define PAM_SM_AUTH
+#define PAM_SM_ACCOUNT
+#define PAM_SM_SESSION
+#define PAM_SM_PASSWORD
+
+#include <security/pam_modules.h>
+#include <security/_pam_macros.h>
+#include <security/pam_ext.h>
+
+/* ---------- */
+
+/* an internal function to turn all possible test arguments into bits
+ of a ctrl number */
+
+/* generic options */
+
+#define PAM_ST_DEBUG 01
+#define PAM_ST_NO_WARN 02
+#define PAM_ST_USE_PASS1 04
+#define PAM_ST_TRY_PASS1 010
+#define PAM_ST_ROOTOK 020
+
+/* simulation options */
+
+#define PAM_ST_EXPIRED 040
+#define PAM_ST_FAIL_1 0100
+#define PAM_ST_FAIL_2 0200
+#define PAM_ST_PRELIM 0400
+#define PAM_ST_REQUIRE_PWD 01000
+
+/* some syslogging */
+
+static void
+_pam_report (const pam_handle_t *pamh, int ctrl, const char *name,
+ int flags, int argc, const char **argv)
+{
+ if (ctrl & PAM_ST_DEBUG) {
+ pam_syslog(pamh, LOG_DEBUG, "CALLED: %s", name);
+ pam_syslog(pamh, LOG_DEBUG, "FLAGS : 0%o%s",
+ flags, (flags & PAM_SILENT) ? " (silent)":"");
+ pam_syslog(pamh, LOG_DEBUG, "CTRL = 0%o", ctrl);
+ pam_syslog(pamh, LOG_DEBUG, "ARGV :");
+ while (argc--) {
+ pam_syslog(pamh, LOG_DEBUG, " \"%s\"", *argv++);
+ }
+ }
+}
+
+static int
+_pam_parse (const pam_handle_t *pamh, int argc, const char **argv)
+{
+ int ctrl=0;
+
+ /* step through arguments */
+ for (ctrl=0; argc-- > 0; ++argv) {
+
+ /* generic options */
+
+ if (!strcmp(*argv,"debug"))
+ ctrl |= PAM_ST_DEBUG;
+ else if (!strcmp(*argv,"no_warn"))
+ ctrl |= PAM_ST_NO_WARN;
+ else if (!strcmp(*argv,"use_first_pass"))
+ ctrl |= PAM_ST_USE_PASS1;
+ else if (!strcmp(*argv,"try_first_pass"))
+ ctrl |= PAM_ST_TRY_PASS1;
+ else if (!strcmp(*argv,"rootok"))
+ ctrl |= PAM_ST_ROOTOK;
+
+ /* simulation options */
+
+ else if (!strcmp(*argv,"expired")) /* signal password needs
+ renewal */
+ ctrl |= PAM_ST_EXPIRED;
+ else if (!strcmp(*argv,"fail_1")) /* instruct fn 1 to fail */
+ ctrl |= PAM_ST_FAIL_1;
+ else if (!strcmp(*argv,"fail_2")) /* instruct fn 2 to fail */
+ ctrl |= PAM_ST_FAIL_2;
+ else if (!strcmp(*argv,"prelim")) /* instruct pam_sm_setcred
+ to fail on first call */
+ ctrl |= PAM_ST_PRELIM;
+ else if (!strcmp(*argv,"required")) /* module is fussy about the
+ user being authenticated */
+ ctrl |= PAM_ST_REQUIRE_PWD;
+
+ else {
+ pam_syslog(pamh, LOG_ERR, "unknown option: %s", *argv);
+ }
+ }
+
+ return ctrl;
+}
+
+static int converse(pam_handle_t *pamh, int nargs
+ , struct pam_message **message
+ , struct pam_response **response)
+{
+ int retval;
+ const void *void_conv;
+ const struct pam_conv *conv;
+
+ retval = pam_get_item(pamh,PAM_CONV,&void_conv);
+ conv = void_conv;
+ if (retval == PAM_SUCCESS && conv) {
+ retval = conv->conv(nargs, (const struct pam_message **) message
+ , response, conv->appdata_ptr);
+ if (retval != PAM_SUCCESS) {
+ pam_syslog(pamh, LOG_ERR, "converse returned %d: %s",
+ retval, pam_strerror(pamh, retval));
+ }
+ } else {
+ pam_syslog(pamh, LOG_ERR, "converse failed to get pam_conv");
+ if (retval == PAM_SUCCESS)
+ retval = PAM_BAD_ITEM; /* conv was null */
+ }
+
+ return retval;
+}
+
+/* authentication management functions */
+
+static int stress_get_password(pam_handle_t *pamh, int flags
+ , int ctrl, char **password)
+{
+ const void *pam_pass;
+ char *pass;
+
+ if ( (ctrl & (PAM_ST_TRY_PASS1|PAM_ST_USE_PASS1))
+ && (pam_get_item(pamh,PAM_AUTHTOK,&pam_pass)
+ == PAM_SUCCESS)
+ && (pam_pass != NULL) ) {
+ if ((pass = strdup(pam_pass)) == NULL)
+ return PAM_BUF_ERR;
+ } else if ((ctrl & PAM_ST_USE_PASS1)) {
+ pam_syslog(pamh, LOG_WARNING, "no forwarded password");
+ return PAM_PERM_DENIED;
+ } else { /* we will have to get one */
+ struct pam_message msg[1],*pmsg[1];
+ struct pam_response *resp;
+ int retval;
+
+ /* set up conversation call */
+
+ pmsg[0] = &msg[0];
+ msg[0].msg_style = PAM_PROMPT_ECHO_OFF;
+ msg[0].msg = "STRESS Password: ";
+ resp = NULL;
+
+ if ((retval = converse(pamh,1,pmsg,&resp)) != PAM_SUCCESS) {
+ return retval;
+ }
+
+ if (resp) {
+ if ((resp[0].resp == NULL) && (ctrl & PAM_ST_DEBUG)) {
+ pam_syslog(pamh, LOG_DEBUG,
+ "pam_sm_authenticate: NULL authtok given");
+ }
+ if ((flags & PAM_DISALLOW_NULL_AUTHTOK)
+ && resp[0].resp == NULL) {
+ free(resp);
+ return PAM_AUTH_ERR;
+ }
+
+ pass = resp[0].resp; /* remember this! */
+
+ resp[0].resp = NULL;
+ } else {
+ if (ctrl & PAM_ST_DEBUG) {
+ pam_syslog(pamh, LOG_DEBUG,
+ "pam_sm_authenticate: no error reported");
+ pam_syslog(pamh, LOG_DEBUG,
+ "getting password, but NULL returned!?");
+ }
+ return PAM_CONV_ERR;
+ }
+ if (resp)
+ free(resp);
+ }
+
+ *password = pass; /* this *MUST* be free()'d by this module */
+
+ return PAM_SUCCESS;
+}
+
+/* function to clean up data items */
+
+static void
+wipe_up (pam_handle_t *pamh UNUSED, void *data, int error UNUSED)
+{
+ free(data);
+}
+
+PAM_EXTERN
+int pam_sm_authenticate(pam_handle_t *pamh, int flags,
+ int argc, const char **argv)
+{
+ const char *username;
+ int retval=PAM_SUCCESS;
+ char *pass;
+ int ctrl;
+
+ D(("called."));
+
+ ctrl = _pam_parse(pamh, argc, argv);
+ _pam_report(pamh, ctrl, "pam_sm_authenticate", flags, argc, argv);
+
+ /* try to get the username */
+
+ retval = pam_get_user(pamh, &username, "username: ");
+ if (retval != PAM_SUCCESS || !username) {
+ pam_syslog(pamh, LOG_WARNING,
+ "pam_sm_authenticate: failed to get username");
+ if (retval == PAM_SUCCESS)
+ retval = PAM_USER_UNKNOWN; /* username was null */
+ return retval;
+ }
+ else if ((ctrl & PAM_ST_DEBUG) && (retval == PAM_SUCCESS)) {
+ pam_syslog(pamh, LOG_DEBUG,
+ "pam_sm_authenticate: username = %s", username);
+ }
+
+ /* now get the password */
+
+ retval = stress_get_password(pamh,flags,ctrl,&pass);
+ if (retval != PAM_SUCCESS) {
+ pam_syslog(pamh, LOG_WARNING,
+ "pam_sm_authenticate: failed to get a password");
+ return retval;
+ }
+
+ /* try to set password item */
+
+ retval = pam_set_item(pamh,PAM_AUTHTOK,pass);
+ _pam_overwrite(pass); /* clean up local copy of password */
+ free(pass);
+ pass = NULL;
+ if (retval != PAM_SUCCESS) {
+ pam_syslog(pamh, LOG_WARNING,
+ "pam_sm_authenticate: failed to store new password");
+ return retval;
+ }
+
+ /* if we are debugging then we print the password */
+
+ if (ctrl & PAM_ST_DEBUG) {
+ const void *pam_pass;
+ (void) pam_get_item(pamh,PAM_AUTHTOK,&pam_pass);
+ pam_syslog(pamh, LOG_DEBUG,
+ "pam_st_authenticate: password entered is: [%s]",
+ (const char *)pam_pass);
+ }
+
+ /* if we signal a fail for this function then fail */
+
+ if ((ctrl & PAM_ST_FAIL_1) && retval == PAM_SUCCESS)
+ return PAM_PERM_DENIED;
+
+ return retval;
+}
+
+PAM_EXTERN
+int pam_sm_setcred(pam_handle_t *pamh, int flags,
+ int argc, const char **argv)
+{
+ int ctrl = _pam_parse(pamh, argc, argv);
+
+ D(("called. [post parsing]"));
+
+ _pam_report(pamh, ctrl, "pam_sm_setcred", flags, argc, argv);
+
+ if (ctrl & PAM_ST_FAIL_2)
+ return PAM_CRED_ERR;
+
+ return PAM_SUCCESS;
+}
+
+/* account management functions */
+
+PAM_EXTERN
+int pam_sm_acct_mgmt(pam_handle_t *pamh, int flags,
+ int argc, const char **argv)
+{
+ int ctrl = _pam_parse(pamh, argc, argv);
+
+ D(("called. [post parsing]"));
+
+ _pam_report(pamh, ctrl,"pam_sm_acct_mgmt", flags, argc, argv);
+
+ if (ctrl & PAM_ST_FAIL_1)
+ return PAM_PERM_DENIED;
+ else if (ctrl & PAM_ST_EXPIRED) {
+ int retval;
+ void *text = strdup("yes");
+ if (!text)
+ return PAM_BUF_ERR;
+ retval = pam_set_data(pamh,"stress_new_pwd",text,wipe_up);
+ if (retval != PAM_SUCCESS) {
+ pam_syslog(pamh, LOG_DEBUG,
+ "pam_sm_acct_mgmt: failed setting stress_new_pwd");
+ free(text);
+ return retval;
+ }
+
+ if (ctrl & PAM_ST_DEBUG) {
+ pam_syslog(pamh, LOG_DEBUG,
+ "pam_sm_acct_mgmt: need a new password");
+ }
+ return PAM_NEW_AUTHTOK_REQD;
+ }
+
+ return PAM_SUCCESS;
+}
+
+PAM_EXTERN
+int pam_sm_open_session(pam_handle_t *pamh, int flags,
+ int argc, const char **argv)
+{
+ const void *username, *service;
+ int ctrl = _pam_parse(pamh, argc, argv);
+
+ D(("called. [post parsing]"));
+
+ _pam_report(pamh, ctrl,"pam_sm_open_session", flags, argc, argv);
+
+ if ((pam_get_item(pamh, PAM_USER, &username)
+ != PAM_SUCCESS || !username)
+ || (pam_get_item(pamh, PAM_SERVICE, &service)
+ != PAM_SUCCESS || !service)) {
+ pam_syslog(pamh, LOG_WARNING, "pam_sm_open_session: for whom?");
+ return PAM_SESSION_ERR;
+ }
+
+ pam_syslog(pamh, LOG_NOTICE, "opened [%s] session for user [%s]",
+ (const char *)service, (const char *)username);
+
+ if (ctrl & PAM_ST_FAIL_1)
+ return PAM_SESSION_ERR;
+
+ return PAM_SUCCESS;
+}
+
+PAM_EXTERN
+int pam_sm_close_session(pam_handle_t *pamh, int flags,
+ int argc, const char **argv)
+{
+ const void *username, *service;
+ int ctrl = _pam_parse(pamh, argc, argv);
+
+ D(("called. [post parsing]"));
+
+ _pam_report(pamh, ctrl,"pam_sm_close_session", flags, argc, argv);
+
+ if ((pam_get_item(pamh, PAM_USER, &username)
+ != PAM_SUCCESS || !username)
+ || (pam_get_item(pamh, PAM_SERVICE, &service)
+ != PAM_SUCCESS || !service)) {
+ pam_syslog(pamh, LOG_WARNING, "pam_sm_close_session: for whom?");
+ return PAM_SESSION_ERR;
+ }
+
+ pam_syslog(pamh, LOG_NOTICE, "closed [%s] session for user [%s]",
+ (const char *)service, (const char *)username);
+
+ if (ctrl & PAM_ST_FAIL_2)
+ return PAM_SESSION_ERR;
+
+ return PAM_SUCCESS;
+}
+
+PAM_EXTERN
+int pam_sm_chauthtok(pam_handle_t *pamh, int flags,
+ int argc, const char **argv)
+{
+ int retval;
+ int ctrl = _pam_parse(pamh, argc, argv);
+
+ D(("called. [post parsing]"));
+
+ _pam_report(pamh, ctrl,"pam_sm_chauthtok", flags, argc, argv);
+
+ /* this function should be called twice by the Linux-PAM library */
+
+ if (flags & PAM_PRELIM_CHECK) { /* first call */
+ if (ctrl & PAM_ST_DEBUG) {
+ pam_syslog(pamh, LOG_DEBUG, "pam_sm_chauthtok: prelim check");
+ }
+ if (ctrl & PAM_ST_PRELIM)
+ return PAM_TRY_AGAIN;
+
+ return PAM_SUCCESS;
+ } else if (flags & PAM_UPDATE_AUTHTOK) { /* second call */
+ struct pam_message msg[3],*pmsg[3];
+ struct pam_response *resp;
+ const void *text;
+ char *txt=NULL;
+ int i;
+
+ if (ctrl & PAM_ST_DEBUG) {
+ pam_syslog(pamh, LOG_DEBUG, "pam_sm_chauthtok: alter password");
+ }
+
+ if (ctrl & PAM_ST_FAIL_1)
+ return PAM_AUTHTOK_LOCK_BUSY;
+
+ if ( !(ctrl && PAM_ST_EXPIRED)
+ && (flags & PAM_CHANGE_EXPIRED_AUTHTOK)
+ && (pam_get_data(pamh,"stress_new_pwd", &text)
+ != PAM_SUCCESS || strcmp(text,"yes"))) {
+ return PAM_SUCCESS; /* the token has not expired */
+ }
+
+ /* the password should be changed */
+
+ if ((ctrl & PAM_ST_REQUIRE_PWD)
+ && !(getuid() == 0 && (ctrl & PAM_ST_ROOTOK))
+ ) { /* first get old one? */
+ char *pass;
+
+ if (ctrl & PAM_ST_DEBUG) {
+ pam_syslog(pamh, LOG_DEBUG,
+ "pam_sm_chauthtok: getting old password");
+ }
+ retval = stress_get_password(pamh,flags,ctrl,&pass);
+ if (retval != PAM_SUCCESS) {
+ pam_syslog(pamh, LOG_DEBUG,
+ "pam_sm_chauthtok: no password obtained");
+ return retval;
+ }
+ retval = pam_set_item(pamh, PAM_OLDAUTHTOK, pass);
+ _pam_overwrite(pass);
+ free(pass);
+ pass = NULL;
+ if (retval != PAM_SUCCESS) {
+ pam_syslog(pamh, LOG_DEBUG,
+ "pam_sm_chauthtok: could not set OLDAUTHTOK");
+ return retval;
+ }
+ }
+
+ /* set up for conversation */
+
+ if (!(flags & PAM_SILENT)) {
+ const void *username;
+
+ if ( pam_get_item(pamh, PAM_USER, &username)
+ || username == NULL ) {
+ pam_syslog(pamh, LOG_ERR, "no username set");
+ return PAM_USER_UNKNOWN;
+ }
+ pmsg[0] = &msg[0];
+ msg[0].msg_style = PAM_TEXT_INFO;
+ if (asprintf(&txt, _("Changing STRESS password for %s."),
+ (const char *)username) < 0) {
+ pam_syslog(pamh, LOG_CRIT, "out of memory");
+ return PAM_BUF_ERR;
+ }
+
+ msg[0].msg = txt;
+ i = 1;
+ } else {
+ i = 0;
+ }
+
+ pmsg[i] = &msg[i];
+ msg[i].msg_style = PAM_PROMPT_ECHO_OFF;
+ msg[i++].msg = _("Enter new STRESS password: ");
+ pmsg[i] = &msg[i];
+ msg[i].msg_style = PAM_PROMPT_ECHO_OFF;
+ msg[i++].msg = _("Retype new STRESS password: ");
+ resp = NULL;
+
+ retval = converse(pamh,i,pmsg,&resp);
+ if (txt) {
+ free(txt);
+ txt = NULL; /* clean up */
+ }
+ if (retval != PAM_SUCCESS) {
+ return retval;
+ }
+
+ if (resp == NULL) {
+ pam_syslog(pamh, LOG_ERR,
+ "pam_sm_chauthtok: no response from conv");
+ return PAM_CONV_ERR;
+ }
+
+ /* store the password */
+
+ if (resp[i-2].resp && resp[i-1].resp) {
+ if (strcmp(resp[i-2].resp,resp[i-1].resp)) {
+ /* passwords are not the same; forget and return error */
+
+ _pam_drop_reply(resp, i);
+
+ if (!(flags & PAM_SILENT) && !(ctrl & PAM_ST_NO_WARN)) {
+ pmsg[0] = &msg[0];
+ msg[0].msg_style = PAM_ERROR_MSG;
+ msg[0].msg = _("Verification mis-typed; "
+ "password unchanged");
+ resp = NULL;
+ (void) converse(pamh,1,pmsg,&resp);
+ if (resp) {
+ _pam_drop_reply(resp, 1);
+ }
+ }
+ return PAM_AUTHTOK_ERR;
+ }
+
+ if (pam_get_item(pamh,PAM_AUTHTOK,&text)
+ == PAM_SUCCESS) {
+ (void) pam_set_item(pamh,PAM_OLDAUTHTOK,text);
+ text = NULL;
+ }
+ (void) pam_set_item(pamh,PAM_AUTHTOK,resp[0].resp);
+ } else {
+ pam_syslog(pamh, LOG_DEBUG,
+ "pam_sm_chauthtok: problem with resp");
+ retval = PAM_SYSTEM_ERR;
+ }
+
+ _pam_drop_reply(resp, i); /* clean up the passwords */
+ } else {
+ pam_syslog(pamh, LOG_ERR,
+ "pam_sm_chauthtok: this must be a Linux-PAM error");
+ return PAM_SYSTEM_ERR;
+ }
+
+ return retval;
+}
+
+
+#ifdef PAM_STATIC
+
+/* static module data */
+
+struct pam_module _pam_stress_modstruct = {
+ "pam_stress",
+ pam_sm_authenticate,
+ pam_sm_setcred,
+ pam_sm_acct_mgmt,
+ pam_sm_open_session,
+ pam_sm_close_session,
+ pam_sm_chauthtok
+};
+
+#endif
diff --git a/modules/pam_stress/tst-pam_stress b/modules/pam_stress/tst-pam_stress
new file mode 100755
index 00000000..24be7560
--- /dev/null
+++ b/modules/pam_stress/tst-pam_stress
@@ -0,0 +1,2 @@
+#!/bin/sh
+../../tests/tst-dlopen .libs/pam_stress.so