Previously the location of the credential cache was passed in either
using environment variable KRB5CCNAME or gss_krb5_ccache_name() if
supported. For threaded-gssd, we can't use an environment variable
as it's shared among all thread. Thus always use the api call.
Signed-off-by: Olga Kornievskaia <kolga@xxxxxxxxxx>
Reviewed-by: Steve Dickson <steved@xxxxxxxxxx>
---
utils/gssd/gssd_proc.c | 12 +++++++++--
utils/gssd/krb5_util.c | 56 +++++++++-----------------------------------------
utils/gssd/krb5_util.h | 1 -
3 files changed, 20 insertions(+), 49 deletions(-)
diff --git a/utils/gssd/gssd_proc.c b/utils/gssd/gssd_proc.c
index 5d9a6db..b8cd648 100644
--- a/utils/gssd/gssd_proc.c
+++ b/utils/gssd/gssd_proc.c
@@ -554,7 +554,15 @@ krb5_use_machine_creds(struct clnt_info *clp, uid_t uid, char *tgtname,
goto out;
}
for (ccname = credlist; ccname && *ccname; ccname++) {
- gssd_setup_krb5_machine_gss_ccache(*ccname);
+ u_int min_stat;
+
+ if (gss_krb5_ccache_name(&min_stat, *ccname, NULL) !=
+ GSS_S_COMPLETE) {
+ printerr(1, "WARNING: gss_krb5_ccache_name "
+ "with name '%s' failed (%s)\n",
+ *ccname, error_message(min_stat));
+ continue;
+ }
if ((create_auth_rpc_client(clp, tgtname, rpc_clnt,
&auth, uid,
AUTHTYPE_KRB5,
@@ -575,7 +583,7 @@ krb5_use_machine_creds(struct clnt_info *clp, uid_t uid, char *tgtname,
"recreate cache for server %s\n",
clp->servername);
} else {
- printerr(1, "WARNING: Failed to create machine"
+ printerr(0, "ERROR: Failed to create machine"
"krb5 context with any credentials"
"cache for server %s\n",
clp->servername);
diff --git a/utils/gssd/krb5_util.c b/utils/gssd/krb5_util.c
index 3328696..7b74ab3 100644
--- a/utils/gssd/krb5_util.c
+++ b/utils/gssd/krb5_util.c
@@ -468,37 +468,6 @@ gssd_get_single_krb5_cred(krb5_context context,
}
/*
- * Depending on the version of Kerberos, we either need to use
- * a private function, or simply set the environment variable.
- */
-static void
-gssd_set_krb5_ccache_name(char *ccname)
-{
-#ifdef USE_GSS_KRB5_CCACHE_NAME
- u_int maj_stat, min_stat;
-
- printerr(3, "using gss_krb5_ccache_name to select krb5 ccache %s\n",
- ccname);
- maj_stat = gss_krb5_ccache_name(&min_stat, ccname, NULL);
- if (maj_stat != GSS_S_COMPLETE) {
- printerr(0, "WARNING: gss_krb5_ccache_name with "
- "name '%s' failed (%s)\n",
- ccname, error_message(min_stat));
- }
-#else
- /*
- * Set the KRB5CCNAME environment variable to tell the krb5 code
- * which credentials cache to use. (Instead of using the private
- * function above for which there is no generic gssapi
- * equivalent.)
- */
- printerr(3, "using environment variable to select krb5 ccache %s\n",
- ccname);
- setenv("KRB5CCNAME", ccname, 1);
-#endif
-}
-
-/*
* Given a principal, find a matching ple structure
*/
static struct gssd_k5_kt_princ *
@@ -1094,6 +1063,7 @@ gssd_setup_krb5_user_gss_ccache(uid_t uid, char *servername, char *dirpattern)
const char *cctype;
struct dirent *d;
int err, i, j;
+ u_int maj_stat, min_stat;
printerr(3, "looking for client creds with uid %u for "
"server %s in %s\n", uid, servername, dirpattern);
@@ -1129,22 +1099,16 @@ gssd_setup_krb5_user_gss_ccache(uid_t uid, char *servername, char *dirpattern)
printerr(2, "using %s as credentials cache for client with "
"uid %u for server %s\n", buf, uid, servername);
- gssd_set_krb5_ccache_name(buf);
- return 0;
-}
-/*
- * Let the gss code know where to find the machine credentials ccache.
- *
- * Returns:
- * void
- */
-void
-gssd_setup_krb5_machine_gss_ccache(char *ccname)
-{
- printerr(2, "using %s as credentials cache for machine creds\n",
- ccname);
- gssd_set_krb5_ccache_name(ccname);
+ printerr(3, "using gss_krb5_ccache_name to select krb5 ccache %s\n",
+ buf);
+ maj_stat = gss_krb5_ccache_name(&min_stat, buf, NULL);
+ if (maj_stat != GSS_S_COMPLETE) {
+ printerr(0, "ERROR: unable to get user cred cache '%s' "
+ "failed (%s)\n", buf, error_message(min_stat));
+ return maj_stat;
+ }
+ return 0;
}
/*
diff --git a/utils/gssd/krb5_util.h b/utils/gssd/krb5_util.h
index a319588..d3b0777 100644
--- a/utils/gssd/krb5_util.h
+++ b/utils/gssd/krb5_util.h
@@ -27,7 +27,6 @@ int gssd_setup_krb5_user_gss_ccache(uid_t uid, char *servername,
char *dirname);
int gssd_get_krb5_machine_cred_list(char ***list);
void gssd_free_krb5_machine_cred_list(char **list);
-void gssd_setup_krb5_machine_gss_ccache(char *servername);
void gssd_destroy_krb5_machine_creds(void);
int gssd_refresh_krb5_machine_credential(char *hostname,
struct gssd_k5_kt_princ *ple,
--
1.8.3.1
--
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