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This commit is contained in:
eabdullin 2025-05-07 18:08:05 +03:00
parent e6208053f3
commit a72e6c1775
2 changed files with 241 additions and 8 deletions
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239
SOURCES/nfs-utils-2.5.4-gssd-bad-integ-error-support.patch Normal file
View File

@ -0,0 +1,239 @@
diff --git a/aclocal/libtirpc.m4 b/aclocal/libtirpc.m4
index 27368ff2..4379b14d 100644
--- a/aclocal/libtirpc.m4
+++ b/aclocal/libtirpc.m4
@@ -26,6 +26,11 @@ AC_DEFUN([AC_LIBTIRPC], [
[Define to 1 if your tirpc library provides libtirpc_set_debug])],,
[${LIBS}])])
+ AS_IF([test -n "${LIBTIRPC}"],
+ [AC_CHECK_LIB([tirpc], [rpc_gss_seccreate],
+ [AC_DEFINE([HAVE_TIRPC_GSS_SECCREATE], [1],
+ [Define to 1 if your tirpc library provides rpc_gss_seccreate])],,
+ [${LIBS}])])
AC_SUBST([AM_CPPFLAGS])
AC_SUBST(LIBTIRPC)
diff --git a/utils/gssd/gssd_proc.c b/utils/gssd/gssd_proc.c
index ae568f15..7629de0b 100644
--- a/utils/gssd/gssd_proc.c
+++ b/utils/gssd/gssd_proc.c
@@ -70,6 +70,9 @@
#include <sys/types.h>
#include <sys/wait.h>
#include <syscall.h>
+#ifdef HAVE_TIRPC_GSS_SECCREATE
+#include <rpc/rpcsec_gss.h>
+#endif
#include "gssd.h"
#include "err_util.h"
@@ -330,6 +333,11 @@ create_auth_rpc_client(struct clnt_info *clp,
struct timeval timeout;
struct sockaddr *addr = (struct sockaddr *) &clp->addr;
socklen_t salen;
+#ifdef HAVE_TIRPC_GSS_SECCREATE
+ rpc_gss_options_req_t req;
+ rpc_gss_options_ret_t ret;
+ char mechanism[] = "kerberos_v5";
+#endif
pthread_t tid = pthread_self();
sec.qop = GSS_C_QOP_DEFAULT;
@@ -410,15 +418,43 @@ create_auth_rpc_client(struct clnt_info *clp,
printerr(3, "create_auth_rpc_client(0x%lx): creating context with server %s\n",
tid, tgtname);
+#ifdef HAVE_TIRPC_GSS_SECCREATE
+ memset(&req, 0, sizeof(req));
+ req.my_cred = sec.cred;
+ auth = rpc_gss_seccreate(rpc_clnt, tgtname, mechanism,
+ rpcsec_gss_svc_none, NULL, &req, &ret);
+#else
auth = authgss_create_default(rpc_clnt, tgtname, &sec);
+#endif
if (!auth) {
+#ifdef HAVE_TIRPC_GSS_SECCREATE
+ if (ret.minor_status == KRB5KRB_AP_ERR_BAD_INTEGRITY) {
+ printerr(2, "WARNING: server=%s failed context "
+ "creation with KRB5_AP_ERR_BAD_INTEGRITY\n",
+ clp->servername);
+ if (cred == GSS_C_NO_CREDENTIAL)
+ retval = gssd_refresh_krb5_machine_credential(clp->servername,
+ "*", NULL, 1);
+ else
+ retval = gssd_k5_remove_bad_service_cred(clp->servername);
+ if (!retval) {
+ auth = rpc_gss_seccreate(rpc_clnt, tgtname,
+ mechanism, rpcsec_gss_svc_none,
+ NULL, &req, &ret);
+ if (auth)
+ goto success;
+ }
+ }
+#endif
/* Our caller should print appropriate message */
printerr(2, "WARNING: Failed to create krb5 context for "
"user with uid %d for server %s\n",
uid, tgtname);
goto out_fail;
}
-
+#ifdef HAVE_TIRPC_GSS_SECCREATE
+success:
+#endif
/* Success !!! */
rpc_clnt->cl_auth = auth;
*clnt_return = rpc_clnt;
@@ -571,7 +607,7 @@ krb5_use_machine_creds(struct clnt_info *clp, uid_t uid,
do {
gssd_refresh_krb5_machine_credential(clp->servername,
- service, srchost);
+ service, srchost, 0);
/*
* Get a list of credential cache names and try each
* of them until one works or we've tried them all
diff --git a/utils/gssd/krb5_util.c b/utils/gssd/krb5_util.c
index e3f270e9..6f66ef4f 100644
--- a/utils/gssd/krb5_util.c
+++ b/utils/gssd/krb5_util.c
@@ -165,7 +165,7 @@ static int select_krb5_ccache(const struct dirent *d);
static int gssd_find_existing_krb5_ccache(uid_t uid, char *dirname,
const char **cctype, struct dirent **d);
static int gssd_get_single_krb5_cred(krb5_context context,
- krb5_keytab kt, struct gssd_k5_kt_princ *ple);
+ krb5_keytab kt, struct gssd_k5_kt_princ *ple, int force_renew);
static int query_krb5_ccache(const char* cred_cache, char **ret_princname,
char **ret_realm);
@@ -391,7 +391,8 @@ gssd_check_if_cc_exists(struct gssd_k5_kt_princ *ple)
static int
gssd_get_single_krb5_cred(krb5_context context,
krb5_keytab kt,
- struct gssd_k5_kt_princ *ple)
+ struct gssd_k5_kt_princ *ple,
+ int force_renew)
{
#ifdef HAVE_KRB5_GET_INIT_CREDS_OPT_SET_ADDRESSLESS
krb5_get_init_creds_opt *init_opts = NULL;
@@ -421,7 +422,7 @@ gssd_get_single_krb5_cred(krb5_context context,
*/
now += 300;
pthread_mutex_lock(&ple_lock);
- if (ple->ccname && ple->endtime > now && !nocache) {
+ if (ple->ccname && ple->endtime > now && !nocache && !force_renew) {
printerr(3, "%s(0x%lx): Credentials in CC '%s' are good until %s",
__func__, tid, ple->ccname, ctime((time_t *)&ple->endtime));
code = 0;
@@ -1155,7 +1156,8 @@ err_cache:
static int
gssd_refresh_krb5_machine_credential_internal(char *hostname,
struct gssd_k5_kt_princ *ple,
- char *service, char *srchost)
+ char *service, char *srchost,
+ int force_renew)
{
krb5_error_code code = 0;
krb5_context context;
@@ -1221,7 +1223,7 @@ gssd_refresh_krb5_machine_credential_internal(char *hostname,
goto out_free_kt;
}
}
- retval = gssd_get_single_krb5_cred(context, kt, ple);
+ retval = gssd_get_single_krb5_cred(context, kt, ple, force_renew);
out_free_kt:
krb5_kt_close(context, kt);
out_free_context:
@@ -1344,7 +1346,7 @@ gssd_get_krb5_machine_cred_list(char ***list)
pthread_mutex_unlock(&ple_lock);
/* Make sure cred is up-to-date before returning it */
retval = gssd_refresh_krb5_machine_credential_internal(NULL, ple,
- NULL, NULL);
+ NULL, NULL, 0);
pthread_mutex_lock(&ple_lock);
if (gssd_k5_kt_princ_list == NULL) {
/* Looks like we did shutdown... abort */
@@ -1456,10 +1458,12 @@ gssd_destroy_krb5_principals(int destroy_machine_creds)
*/
int
gssd_refresh_krb5_machine_credential(char *hostname,
- char *service, char *srchost)
+ char *service, char *srchost,
+ int force_renew)
{
return gssd_refresh_krb5_machine_credential_internal(hostname, NULL,
- service, srchost);
+ service, srchost,
+ force_renew);
}
/*
@@ -1549,6 +1553,48 @@ gssd_acquire_user_cred(gss_cred_id_t *gss_cred)
return ret;
}
+/* Removed a service ticket for nfs/<name> from the ticket cache
+ */
+int
+gssd_k5_remove_bad_service_cred(char *name)
+{
+ krb5_creds in_creds, out_creds;
+ krb5_error_code ret;
+ krb5_context context;
+ krb5_ccache cache;
+ krb5_principal principal;
+ int retflags = KRB5_TC_MATCH_SRV_NAMEONLY;
+ char srvname[1024];
+
+ ret = krb5_init_context(&context);
+ if (ret)
+ goto out_cred;
+ ret = krb5_cc_default(context, &cache);
+ if (ret)
+ goto out_free_context;
+ ret = krb5_cc_get_principal(context, cache, &principal);
+ if (ret)
+ goto out_close_cache;
+ memset(&in_creds, 0, sizeof(in_creds));
+ in_creds.client = principal;
+ sprintf(srvname, "nfs/%s", name);
+ ret = krb5_parse_name(context, srvname, &in_creds.server);
+ if (ret)
+ goto out_free_principal;
+ ret = krb5_cc_retrieve_cred(context, cache, retflags, &in_creds, &out_creds);
+ if (ret)
+ goto out_free_principal;
+ ret = krb5_cc_remove_cred(context, cache, 0, &out_creds);
+out_free_principal:
+ krb5_free_principal(context, principal);
+out_close_cache:
+ krb5_cc_close(context, cache);
+out_free_context:
+ krb5_free_context(context);
+out_cred:
+ return ret;
+}
+
#ifdef HAVE_SET_ALLOWABLE_ENCTYPES
/*
* this routine obtains a credentials handle via gss_acquire_cred()
diff --git a/utils/gssd/krb5_util.h b/utils/gssd/krb5_util.h
index 2415205a..7ef87018 100644
--- a/utils/gssd/krb5_util.h
+++ b/utils/gssd/krb5_util.h
@@ -16,11 +16,13 @@ int gssd_get_krb5_machine_cred_list(char ***list);
void gssd_free_krb5_machine_cred_list(char **list);
void gssd_destroy_krb5_principals(int destroy_machine_creds);
int gssd_refresh_krb5_machine_credential(char *hostname,
- char *service, char *srchost);
+ char *service, char *srchost,
+ int force_renew);
char *gssd_k5_err_msg(krb5_context context, krb5_error_code code);
void gssd_k5_get_default_realm(char **def_realm);
int gssd_acquire_user_cred(gss_cred_id_t *gss_cred);
+int gssd_k5_remove_bad_service_cred(char *srvname);
#ifdef HAVE_SET_ALLOWABLE_ENCTYPES
extern int limit_to_legacy_enctypes;

10
SPECS/nfs-utils.spec
View File

@ -2,7 +2,7 @@ Summary: NFS utilities and supporting clients and daemons for the kernel NFS ser
Name: nfs-utils
URL: http://linux-nfs.org/
Version: 2.5.4
Release: 27.0.1%{?dist}.1
Release: 27%{?dist}.1
Epoch: 1
# group all 32bit related archs
@ -52,8 +52,7 @@ Patch018: nfs-utils-2.5.4-man-nfsconf.patch
# RHEL9.4
#
Patch019: nfs-utils-2.5.4-gssd-dns-failure.patch
# Patch disabled downstream in Oracle Linux
# Patch020: nfs-utils-2.5.4-gssd-bad-integ-error-support.patch
Patch020: nfs-utils-2.5.4-gssd-bad-integ-error-support.patch
Patch021: nfs-utils-2.5.4-mount-mountconf-typo.patch
Patch022: nfs-utils-2.5.4-support-for-rpc-with-tls.patch
Patch023: nfs-utils-2.5.4-fix-typos-in-messages.patch
@ -351,7 +350,6 @@ if [ $1 -eq 0 ] ; then
fi
%triggerin -- nfs-utils > 1:2.1.1-3
/bin/systemctl --system daemon-reload >/dev/null 2>&1 || :
/bin/systemctl try-restart gssproxy || :
%triggerun -- nfs-utils < 1:2.5.4-3
@ -512,10 +510,6 @@ fi
%{_mandir}/*/nfsiostat.8.gz
%changelog
* Tue May 06 2025 EL Errata <el-errata_ww@oracle.com> - 2.5.4-27.0.1
- Disable nfs-utils-2.5.4-gssd-bad-integ-error-support.patch [Orabug: 36563788]
- spec: remove multiple warnings when upgrading nfs-utils with gssproxy [Orabug: 36044562]
* Mon Mar 10 2025 Scott Mayhew <smayhew@redhat.com> - 2.5.4-27.1
- conffile: add 'arg' argument to conf_remove_now() (RHEL-82881)