diff options
Diffstat (limited to 'source/n/krb5/patches/krb5-1.12.1-pam.patch')
| -rw-r--r-- | source/n/krb5/patches/krb5-1.12.1-pam.patch | 770 |
1 files changed, 770 insertions, 0 deletions
diff --git a/source/n/krb5/patches/krb5-1.12.1-pam.patch b/source/n/krb5/patches/krb5-1.12.1-pam.patch new file mode 100644 index 000000000..17d29b0d2 --- /dev/null +++ b/source/n/krb5/patches/krb5-1.12.1-pam.patch @@ -0,0 +1,770 @@ +From 977d51ce9a5bb37255e87db37353f0d70d6b293d Mon Sep 17 00:00:00 2001 +From: Robbie Harwood <rharwood@redhat.com> +Date: Tue, 23 Aug 2016 16:29:58 -0400 +Subject: [PATCH] krb5-1.12.1-pam.patch + +Modify ksu so that it performs account and session management on behalf of +the target user account, mimicking the action of regular su. The default +service name is "ksu", because on Fedora at least the configuration used +is determined by whether or not a login shell is being opened, and so +this may need to vary, too. At run-time, ksu's behavior can be reset to +the earlier, non-PAM behavior by setting "use_pam" to false in the [ksu] +section of /etc/krb5.conf. + +When enabled, ksu gains a dependency on libpam. + +Originally RT#5939, though it's changed since then to perform the account +and session management before dropping privileges, and to apply on top of +changes we're proposing for how it handles cache collections. +--- + src/aclocal.m4 | 67 ++++++++ + src/clients/ksu/Makefile.in | 8 +- + src/clients/ksu/main.c | 88 +++++++++- + src/clients/ksu/pam.c | 389 ++++++++++++++++++++++++++++++++++++++++++++ + src/clients/ksu/pam.h | 57 +++++++ + src/configure.in | 2 + + 6 files changed, 608 insertions(+), 3 deletions(-) + create mode 100644 src/clients/ksu/pam.c + create mode 100644 src/clients/ksu/pam.h + +diff --git a/src/aclocal.m4 b/src/aclocal.m4 +index 9c46da4..508e5fe 100644 +--- a/src/aclocal.m4 ++++ b/src/aclocal.m4 +@@ -1675,3 +1675,70 @@ AC_DEFUN(KRB5_AC_PERSISTENT_KEYRING,[ + ])) + ])dnl + dnl ++dnl ++dnl Use PAM instead of local crypt() compare for checking local passwords, ++dnl and perform PAM account, session management, and password-changing where ++dnl appropriate. ++dnl ++AC_DEFUN(KRB5_WITH_PAM,[ ++AC_ARG_WITH(pam,[AC_HELP_STRING(--with-pam,[compile with PAM support])], ++ withpam="$withval",withpam=auto) ++AC_ARG_WITH(pam-ksu-service,[AC_HELP_STRING(--with-ksu-service,[PAM service name for ksu ["ksu"]])], ++ withksupamservice="$withval",withksupamservice=ksu) ++old_LIBS="$LIBS" ++if test "$withpam" != no ; then ++ AC_MSG_RESULT([checking for PAM...]) ++ PAM_LIBS= ++ ++ AC_CHECK_HEADERS(security/pam_appl.h) ++ if test "x$ac_cv_header_security_pam_appl_h" != xyes ; then ++ if test "$withpam" = auto ; then ++ AC_MSG_RESULT([Unable to locate security/pam_appl.h.]) ++ withpam=no ++ else ++ AC_MSG_ERROR([Unable to locate security/pam_appl.h.]) ++ fi ++ fi ++ ++ LIBS= ++ unset ac_cv_func_pam_start ++ AC_CHECK_FUNCS(putenv pam_start) ++ if test "x$ac_cv_func_pam_start" = xno ; then ++ unset ac_cv_func_pam_start ++ AC_CHECK_LIB(dl,dlopen) ++ AC_CHECK_FUNCS(pam_start) ++ if test "x$ac_cv_func_pam_start" = xno ; then ++ AC_CHECK_LIB(pam,pam_start) ++ unset ac_cv_func_pam_start ++ unset ac_cv_func_pam_getenvlist ++ AC_CHECK_FUNCS(pam_start pam_getenvlist) ++ if test "x$ac_cv_func_pam_start" = xyes ; then ++ PAM_LIBS="$LIBS" ++ else ++ if test "$withpam" = auto ; then ++ AC_MSG_RESULT([Unable to locate libpam.]) ++ withpam=no ++ else ++ AC_MSG_ERROR([Unable to locate libpam.]) ++ fi ++ fi ++ fi ++ fi ++ if test "$withpam" != no ; then ++ AC_MSG_NOTICE([building with PAM support]) ++ AC_DEFINE(USE_PAM,1,[Define if Kerberos-aware tools should support PAM]) ++ AC_DEFINE_UNQUOTED(KSU_PAM_SERVICE,"$withksupamservice", ++ [Define to the name of the PAM service name to be used by ksu.]) ++ PAM_LIBS="$LIBS" ++ NON_PAM_MAN=".\\\" " ++ PAM_MAN= ++ else ++ PAM_MAN=".\\\" " ++ NON_PAM_MAN= ++ fi ++fi ++LIBS="$old_LIBS" ++AC_SUBST(PAM_LIBS) ++AC_SUBST(PAM_MAN) ++AC_SUBST(NON_PAM_MAN) ++])dnl +diff --git a/src/clients/ksu/Makefile.in b/src/clients/ksu/Makefile.in +index b2fcbf2..5755bb5 100644 +--- a/src/clients/ksu/Makefile.in ++++ b/src/clients/ksu/Makefile.in +@@ -3,12 +3,14 @@ BUILDTOP=$(REL)..$(S).. + DEFINES = -DGET_TGT_VIA_PASSWD -DPRINC_LOOK_AHEAD -DCMD_PATH='"/bin /local/bin"' + + KSU_LIBS=@KSU_LIBS@ ++PAM_LIBS=@PAM_LIBS@ + + SRCS = \ + $(srcdir)/krb_auth_su.c \ + $(srcdir)/ccache.c \ + $(srcdir)/authorization.c \ + $(srcdir)/main.c \ ++ $(srcdir)/pam.c \ + $(srcdir)/heuristic.c \ + $(srcdir)/xmalloc.c \ + $(srcdir)/setenv.c +@@ -17,13 +19,17 @@ OBJS = \ + ccache.o \ + authorization.o \ + main.o \ ++ pam.o \ + heuristic.o \ + xmalloc.o @SETENVOBJ@ + + all: ksu + + ksu: $(OBJS) $(KRB5_BASE_DEPLIBS) +- $(CC_LINK) -o $@ $(OBJS) $(KRB5_BASE_LIBS) $(KSU_LIBS) ++ $(CC_LINK) -o $@ $(OBJS) $(KRB5_BASE_LIBS) $(KSU_LIBS) $(PAM_LIBS) ++ ++pam.o: pam.c ++ $(CC) $(ALL_CFLAGS) -c $< + + clean: + $(RM) ksu +diff --git a/src/clients/ksu/main.c b/src/clients/ksu/main.c +index 28342c2..cab0c18 100644 +--- a/src/clients/ksu/main.c ++++ b/src/clients/ksu/main.c +@@ -26,6 +26,7 @@ + * KSU was writen by: Ari Medvinsky, ari@isi.edu + */ + ++#include "autoconf.h" + #include "ksu.h" + #include "adm_proto.h" + #include <sys/types.h> +@@ -33,6 +34,10 @@ + #include <signal.h> + #include <grp.h> + ++#ifdef USE_PAM ++#include "pam.h" ++#endif ++ + /* globals */ + char * prog_name; + int auth_debug =0; +@@ -40,6 +45,7 @@ char k5login_path[MAXPATHLEN]; + char k5users_path[MAXPATHLEN]; + char * gb_err = NULL; + int quiet = 0; ++int force_fork = 0; + /***********/ + + #define KS_TEMPORARY_CACHE "MEMORY:_ksu" +@@ -515,6 +521,23 @@ main (argc, argv) + prog_name,target_user,client_name, + source_user,ontty()); + ++#ifdef USE_PAM ++ if (appl_pam_enabled(ksu_context, "ksu")) { ++ if (appl_pam_acct_mgmt(KSU_PAM_SERVICE, 1, target_user, NULL, ++ NULL, source_user, ++ ttyname(STDERR_FILENO)) != 0) { ++ fprintf(stderr, "Access denied for %s.\n", target_user); ++ exit(1); ++ } ++ if (appl_pam_requires_chauthtok()) { ++ fprintf(stderr, "Password change required for %s.\n", ++ target_user); ++ exit(1); ++ } ++ force_fork++; ++ } ++#endif ++ + /* Run authorization as target.*/ + if (krb5_seteuid(target_uid)) { + com_err(prog_name, errno, _("while switching to target for " +@@ -575,6 +598,24 @@ main (argc, argv) + + exit(1); + } ++#ifdef USE_PAM ++ } else { ++ /* we always do PAM account management, even for root */ ++ if (appl_pam_enabled(ksu_context, "ksu")) { ++ if (appl_pam_acct_mgmt(KSU_PAM_SERVICE, 1, target_user, NULL, ++ NULL, source_user, ++ ttyname(STDERR_FILENO)) != 0) { ++ fprintf(stderr, "Access denied for %s.\n", target_user); ++ exit(1); ++ } ++ if (appl_pam_requires_chauthtok()) { ++ fprintf(stderr, "Password change required for %s.\n", ++ target_user); ++ exit(1); ++ } ++ force_fork++; ++ } ++#endif + } + + if( some_rest_copy){ +@@ -632,6 +673,30 @@ main (argc, argv) + exit(1); + } + ++#ifdef USE_PAM ++ if (appl_pam_enabled(ksu_context, "ksu")) { ++ if (appl_pam_session_open() != 0) { ++ fprintf(stderr, "Error opening session for %s.\n", target_user); ++ exit(1); ++ } ++#ifdef DEBUG ++ if (auth_debug){ ++ printf(" Opened PAM session.\n"); ++ } ++#endif ++ if (appl_pam_cred_init()) { ++ fprintf(stderr, "Error initializing credentials for %s.\n", ++ target_user); ++ exit(1); ++ } ++#ifdef DEBUG ++ if (auth_debug){ ++ printf(" Initialized PAM credentials.\n"); ++ } ++#endif ++ } ++#endif ++ + /* set permissions */ + if (setgid(target_pwd->pw_gid) < 0) { + perror("ksu: setgid"); +@@ -729,7 +794,7 @@ main (argc, argv) + fprintf(stderr, "program to be execed %s\n",params[0]); + } + +- if( keep_target_cache ) { ++ if( keep_target_cache && !force_fork ) { + execv(params[0], params); + com_err(prog_name, errno, _("while trying to execv %s"), params[0]); + sweep_up(ksu_context, cc_target); +@@ -759,16 +824,35 @@ main (argc, argv) + if (ret_pid == -1) { + com_err(prog_name, errno, _("while calling waitpid")); + } +- sweep_up(ksu_context, cc_target); ++ if( !keep_target_cache ) { ++ sweep_up(ksu_context, cc_target); ++ } + exit (statusp); + case -1: + com_err(prog_name, errno, _("while trying to fork.")); + sweep_up(ksu_context, cc_target); + exit (1); + case 0: ++#ifdef USE_PAM ++ if (appl_pam_enabled(ksu_context, "ksu")) { ++ if (appl_pam_setenv() != 0) { ++ fprintf(stderr, "Error setting up environment for %s.\n", ++ target_user); ++ exit (1); ++ } ++#ifdef DEBUG ++ if (auth_debug){ ++ printf(" Set up PAM environment.\n"); ++ } ++#endif ++ } ++#endif + execv(params[0], params); + com_err(prog_name, errno, _("while trying to execv %s"), + params[0]); ++ if( keep_target_cache ) { ++ sweep_up(ksu_context, cc_target); ++ } + exit (1); + } + } +diff --git a/src/clients/ksu/pam.c b/src/clients/ksu/pam.c +new file mode 100644 +index 0000000..cbfe487 +--- /dev/null ++++ b/src/clients/ksu/pam.c +@@ -0,0 +1,389 @@ ++/* ++ * src/clients/ksu/pam.c ++ * ++ * Copyright 2007,2009,2010 Red Hat, Inc. ++ * ++ * All Rights Reserved. ++ * ++ * Redistribution and use in source and binary forms, with or without ++ * modification, are permitted provided that the following conditions are met: ++ * ++ * Redistributions of source code must retain the above copyright notice, this ++ * list of conditions and the following disclaimer. ++ * ++ * 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. ++ * ++ * Neither the name of Red Hat, Inc. nor the names of its contributors may be ++ * used to endorse or promote products derived from this software without ++ * specific prior written permission. ++ * ++ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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. ++ * ++ * Convenience wrappers for using PAM. ++ */ ++ ++#include "autoconf.h" ++#ifdef USE_PAM ++#include <sys/types.h> ++#include <stdio.h> ++#include <stdlib.h> ++#include <string.h> ++#include <unistd.h> ++#include "k5-int.h" ++#include "pam.h" ++ ++#ifndef MAXPWSIZE ++#define MAXPWSIZE 128 ++#endif ++ ++static int appl_pam_started; ++static pid_t appl_pam_starter = -1; ++static int appl_pam_session_opened; ++static int appl_pam_creds_initialized; ++static int appl_pam_pwchange_required; ++static pam_handle_t *appl_pamh; ++static struct pam_conv appl_pam_conv; ++static char *appl_pam_user; ++struct appl_pam_non_interactive_args { ++ const char *user; ++ const char *password; ++}; ++ ++int ++appl_pam_enabled(krb5_context context, const char *section) ++{ ++ int enabled = 1; ++ if ((context != NULL) && (context->profile != NULL)) { ++ if (profile_get_boolean(context->profile, ++ section, ++ USE_PAM_CONFIGURATION_KEYWORD, ++ NULL, ++ enabled, &enabled) != 0) { ++ enabled = 1; ++ } ++ } ++ return enabled; ++} ++ ++void ++appl_pam_cleanup(void) ++{ ++ if (getpid() != appl_pam_starter) { ++ return; ++ } ++#ifdef DEBUG ++ printf("Called to clean up PAM.\n"); ++#endif ++ if (appl_pam_creds_initialized) { ++#ifdef DEBUG ++ printf("Deleting PAM credentials.\n"); ++#endif ++ pam_setcred(appl_pamh, PAM_DELETE_CRED); ++ appl_pam_creds_initialized = 0; ++ } ++ if (appl_pam_session_opened) { ++#ifdef DEBUG ++ printf("Closing PAM session.\n"); ++#endif ++ pam_close_session(appl_pamh, 0); ++ appl_pam_session_opened = 0; ++ } ++ appl_pam_pwchange_required = 0; ++ if (appl_pam_started) { ++#ifdef DEBUG ++ printf("Shutting down PAM.\n"); ++#endif ++ pam_end(appl_pamh, 0); ++ appl_pam_started = 0; ++ appl_pam_starter = -1; ++ free(appl_pam_user); ++ appl_pam_user = NULL; ++ } ++} ++static int ++appl_pam_interactive_converse(int num_msg, const struct pam_message **msg, ++ struct pam_response **presp, void *appdata_ptr) ++{ ++ const struct pam_message *message; ++ struct pam_response *resp; ++ int i, code; ++ char *pwstring, pwbuf[MAXPWSIZE]; ++ unsigned int pwsize; ++ resp = malloc(sizeof(struct pam_response) * num_msg); ++ if (resp == NULL) { ++ return PAM_BUF_ERR; ++ } ++ memset(resp, 0, sizeof(struct pam_response) * num_msg); ++ code = PAM_SUCCESS; ++ for (i = 0; i < num_msg; i++) { ++ message = &(msg[0][i]); /* XXX */ ++ message = msg[i]; /* XXX */ ++ pwstring = NULL; ++ switch (message->msg_style) { ++ case PAM_TEXT_INFO: ++ case PAM_ERROR_MSG: ++ printf("[%s]\n", message->msg ? message->msg : ""); ++ fflush(stdout); ++ resp[i].resp = NULL; ++ resp[i].resp_retcode = PAM_SUCCESS; ++ break; ++ case PAM_PROMPT_ECHO_ON: ++ case PAM_PROMPT_ECHO_OFF: ++ if (message->msg_style == PAM_PROMPT_ECHO_ON) { ++ if (fgets(pwbuf, sizeof(pwbuf), ++ stdin) != NULL) { ++ pwbuf[strcspn(pwbuf, "\r\n")] = '\0'; ++ pwstring = pwbuf; ++ } ++ } else { ++ pwstring = getpass(message->msg ? ++ message->msg : ++ ""); ++ } ++ if ((pwstring != NULL) && (pwstring[0] != '\0')) { ++ pwsize = strlen(pwstring); ++ resp[i].resp = malloc(pwsize + 1); ++ if (resp[i].resp == NULL) { ++ resp[i].resp_retcode = PAM_BUF_ERR; ++ } else { ++ memcpy(resp[i].resp, pwstring, pwsize); ++ resp[i].resp[pwsize] = '\0'; ++ resp[i].resp_retcode = PAM_SUCCESS; ++ } ++ } else { ++ resp[i].resp_retcode = PAM_CONV_ERR; ++ code = PAM_CONV_ERR; ++ } ++ break; ++ default: ++ break; ++ } ++ } ++ *presp = resp; ++ return code; ++} ++static int ++appl_pam_non_interactive_converse(int num_msg, ++ const struct pam_message **msg, ++ struct pam_response **presp, ++ void *appdata_ptr) ++{ ++ const struct pam_message *message; ++ struct pam_response *resp; ++ int i, code; ++ unsigned int pwsize; ++ struct appl_pam_non_interactive_args *args; ++ const char *pwstring; ++ resp = malloc(sizeof(struct pam_response) * num_msg); ++ if (resp == NULL) { ++ return PAM_BUF_ERR; ++ } ++ args = appdata_ptr; ++ memset(resp, 0, sizeof(struct pam_response) * num_msg); ++ code = PAM_SUCCESS; ++ for (i = 0; i < num_msg; i++) { ++ message = &((*msg)[i]); ++ message = msg[i]; ++ pwstring = NULL; ++ switch (message->msg_style) { ++ case PAM_TEXT_INFO: ++ case PAM_ERROR_MSG: ++ break; ++ case PAM_PROMPT_ECHO_ON: ++ case PAM_PROMPT_ECHO_OFF: ++ if (message->msg_style == PAM_PROMPT_ECHO_ON) { ++ /* assume "user" */ ++ pwstring = args->user; ++ } else { ++ /* assume "password" */ ++ pwstring = args->password; ++ } ++ if ((pwstring != NULL) && (pwstring[0] != '\0')) { ++ pwsize = strlen(pwstring); ++ resp[i].resp = malloc(pwsize + 1); ++ if (resp[i].resp == NULL) { ++ resp[i].resp_retcode = PAM_BUF_ERR; ++ } else { ++ memcpy(resp[i].resp, pwstring, pwsize); ++ resp[i].resp[pwsize] = '\0'; ++ resp[i].resp_retcode = PAM_SUCCESS; ++ } ++ } else { ++ resp[i].resp_retcode = PAM_CONV_ERR; ++ code = PAM_CONV_ERR; ++ } ++ break; ++ default: ++ break; ++ } ++ } ++ *presp = resp; ++ return code; ++} ++static int ++appl_pam_start(const char *service, int interactive, ++ const char *login_username, ++ const char *non_interactive_password, ++ const char *hostname, ++ const char *ruser, ++ const char *tty) ++{ ++ static int exit_handler_registered; ++ static struct appl_pam_non_interactive_args args; ++ int ret = 0; ++ if (appl_pam_started && ++ (strcmp(login_username, appl_pam_user) != 0)) { ++ appl_pam_cleanup(); ++ appl_pam_user = NULL; ++ } ++ if (!appl_pam_started) { ++#ifdef DEBUG ++ printf("Starting PAM up (service=\"%s\",user=\"%s\").\n", ++ service, login_username); ++#endif ++ memset(&appl_pam_conv, 0, sizeof(appl_pam_conv)); ++ appl_pam_conv.conv = interactive ? ++ &appl_pam_interactive_converse : ++ &appl_pam_non_interactive_converse; ++ memset(&args, 0, sizeof(args)); ++ args.user = strdup(login_username); ++ args.password = non_interactive_password ? ++ strdup(non_interactive_password) : ++ NULL; ++ appl_pam_conv.appdata_ptr = &args; ++ ret = pam_start(service, login_username, ++ &appl_pam_conv, &appl_pamh); ++ if (ret == 0) { ++ if (hostname != NULL) { ++#ifdef DEBUG ++ printf("Setting PAM_RHOST to \"%s\".\n", hostname); ++#endif ++ pam_set_item(appl_pamh, PAM_RHOST, hostname); ++ } ++ if (ruser != NULL) { ++#ifdef DEBUG ++ printf("Setting PAM_RUSER to \"%s\".\n", ruser); ++#endif ++ pam_set_item(appl_pamh, PAM_RUSER, ruser); ++ } ++ if (tty != NULL) { ++#ifdef DEBUG ++ printf("Setting PAM_TTY to \"%s\".\n", tty); ++#endif ++ pam_set_item(appl_pamh, PAM_TTY, tty); ++ } ++ if (!exit_handler_registered && ++ (atexit(appl_pam_cleanup) != 0)) { ++ pam_end(appl_pamh, 0); ++ appl_pamh = NULL; ++ ret = -1; ++ } else { ++ appl_pam_started = 1; ++ appl_pam_starter = getpid(); ++ appl_pam_user = strdup(login_username); ++ exit_handler_registered = 1; ++ } ++ } ++ } ++ return ret; ++} ++int ++appl_pam_acct_mgmt(const char *service, int interactive, ++ const char *login_username, ++ const char *non_interactive_password, ++ const char *hostname, ++ const char *ruser, ++ const char *tty) ++{ ++ int ret; ++ appl_pam_pwchange_required = 0; ++ ret = appl_pam_start(service, interactive, login_username, ++ non_interactive_password, hostname, ruser, tty); ++ if (ret == 0) { ++#ifdef DEBUG ++ printf("Calling pam_acct_mgmt().\n"); ++#endif ++ ret = pam_acct_mgmt(appl_pamh, 0); ++ switch (ret) { ++ case PAM_IGNORE: ++ ret = 0; ++ break; ++ case PAM_NEW_AUTHTOK_REQD: ++ appl_pam_pwchange_required = 1; ++ ret = 0; ++ break; ++ default: ++ break; ++ } ++ } ++ return ret; ++} ++int ++appl_pam_requires_chauthtok(void) ++{ ++ return appl_pam_pwchange_required; ++} ++int ++appl_pam_session_open(void) ++{ ++ int ret = 0; ++ if (appl_pam_started) { ++#ifdef DEBUG ++ printf("Opening PAM session.\n"); ++#endif ++ ret = pam_open_session(appl_pamh, 0); ++ if (ret == 0) { ++ appl_pam_session_opened = 1; ++ } ++ } ++ return ret; ++} ++int ++appl_pam_setenv(void) ++{ ++ int ret = 0; ++#ifdef HAVE_PAM_GETENVLIST ++#ifdef HAVE_PUTENV ++ int i; ++ char **list; ++ if (appl_pam_started) { ++ list = pam_getenvlist(appl_pamh); ++ for (i = 0; ((list != NULL) && (list[i] != NULL)); i++) { ++#ifdef DEBUG ++ printf("Setting \"%s\" in environment.\n", list[i]); ++#endif ++ putenv(list[i]); ++ } ++ } ++#endif ++#endif ++ return ret; ++} ++int ++appl_pam_cred_init(void) ++{ ++ int ret = 0; ++ if (appl_pam_started) { ++#ifdef DEBUG ++ printf("Initializing PAM credentials.\n"); ++#endif ++ ret = pam_setcred(appl_pamh, PAM_ESTABLISH_CRED); ++ if (ret == 0) { ++ appl_pam_creds_initialized = 1; ++ } ++ } ++ return ret; ++} ++#endif +diff --git a/src/clients/ksu/pam.h b/src/clients/ksu/pam.h +new file mode 100644 +index 0000000..0ab7656 +--- /dev/null ++++ b/src/clients/ksu/pam.h +@@ -0,0 +1,57 @@ ++/* ++ * src/clients/ksu/pam.h ++ * ++ * Copyright 2007,2009,2010 Red Hat, Inc. ++ * ++ * All Rights Reserved. ++ * ++ * Redistribution and use in source and binary forms, with or without ++ * modification, are permitted provided that the following conditions are met: ++ * ++ * Redistributions of source code must retain the above copyright notice, this ++ * list of conditions and the following disclaimer. ++ * ++ * 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. ++ * ++ * Neither the name of Red Hat, Inc. nor the names of its contributors may be ++ * used to endorse or promote products derived from this software without ++ * specific prior written permission. ++ * ++ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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. ++ * ++ * Convenience wrappers for using PAM. ++ */ ++ ++#include <krb5.h> ++#ifdef HAVE_SECURITY_PAM_APPL_H ++#include <security/pam_appl.h> ++#endif ++ ++#define USE_PAM_CONFIGURATION_KEYWORD "use_pam" ++ ++#ifdef USE_PAM ++int appl_pam_enabled(krb5_context context, const char *section); ++int appl_pam_acct_mgmt(const char *service, int interactive, ++ const char *local_username, ++ const char *non_interactive_password, ++ const char *hostname, ++ const char *ruser, ++ const char *tty); ++int appl_pam_requires_chauthtok(void); ++int appl_pam_session_open(void); ++int appl_pam_setenv(void); ++int appl_pam_cred_init(void); ++void appl_pam_cleanup(void); ++#endif +diff --git a/src/configure.in b/src/configure.in +index 037c9f3..daabd12 100644 +--- a/src/configure.in ++++ b/src/configure.in +@@ -1336,6 +1336,8 @@ AC_SUBST([VERTO_VERSION]) + + AC_PATH_PROG(GROFF, groff) + ++KRB5_WITH_PAM ++ + # Make localedir work in autoconf 2.5x. + if test "${localedir+set}" != set; then + localedir='$(datadir)/locale' |