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authorSimo Sorce <idra@samba.org>2008-12-10 17:21:03 -0500
committerSimo Sorce <idra@samba.org>2008-12-10 17:21:03 -0500
commita5442a122917088afff240846700e858f45fe1de (patch)
treea9b5bb18d59ea77b305212554942969c1bb2a9fb
parentd0a94d34e6cbfb0cc164460b173c7fcfb2d28344 (diff)
downloadsssd-a5442a122917088afff240846700e858f45fe1de.tar.gz
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Initial work on a test provider using the gross hack of dlopen()ing nss_ldap
:-)
-rw-r--r--server/Makefile.in5
-rw-r--r--server/providers/data_provider.h4
-rw-r--r--server/providers/data_provider_be.c17
-rw-r--r--server/providers/ldap_provider.c173
-rw-r--r--server/server.mk8
5 files changed, 196 insertions, 11 deletions
diff --git a/server/Makefile.in b/server/Makefile.in
index fa57d803..a1f87eb5 100644
--- a/server/Makefile.in
+++ b/server/Makefile.in
@@ -60,6 +60,7 @@ OBJS = $(SERVER_OBJ) @LIBREPLACEOBJ@ $(EXTRA_OBJ)
headers = .h
BINS = sbin/sssd sbin/sssd_nss sbin/sssd_dp sbin/sssd_be
+SOLIBS = lib/libsss_ldap.$(SHLIBEXT)
DIRS = sbin
@@ -67,7 +68,7 @@ default: all
include $(srvdir)/rules.mk
-all: showflags dirs $(OBJS) $(BINS)
+all: showflags dirs $(OBJS) $(BINS) $(SOLIBS)
shared-build: all
@@ -76,7 +77,7 @@ dirs:
clean::
rm -f *.o */*.o */*/*.o
- rm -f $(BINS)
+ rm -f $(BINS) $(SOLIBS)
distclean:: clean
rm -rf $(DIRS)
diff --git a/server/providers/data_provider.h b/server/providers/data_provider.h
index cd8098ba..b04c57d0 100644
--- a/server/providers/data_provider.h
+++ b/server/providers/data_provider.h
@@ -49,4 +49,8 @@
#define DP_CLI_METHOD_IDENTITY "getIdentity"
#define DP_CLI_METHOD_ONLINE "getOnline"
+struct dp_be_mod_ops {
+ int (*check_online)(void *pvt_data, int *reply);
+};
+
#endif /* __DATA_PROVIDER_ */
diff --git a/server/providers/data_provider_be.c b/server/providers/data_provider_be.c
index 83659bee..cce4446f 100644
--- a/server/providers/data_provider_be.c
+++ b/server/providers/data_provider_be.c
@@ -38,13 +38,9 @@
#include "sbus/sssd_dbus.h"
#include "sbus_interfaces.h"
#include "util/btreemap.h"
-#include "data_provider.h"
+#include "providers/data_provider.h"
#include "util/service_helpers.h"
-struct dp_mod_ops {
- int (*check_online)(void *pvt_data, int *reply);
-};
-
struct be_ctx {
struct event_context *ev;
struct confdb_ctx *cdb;
@@ -54,11 +50,11 @@ struct be_ctx {
const char *name;
const char *domain;
const char *identity;
- struct dp_mod_ops *ops;
+ struct dp_be_mod_ops *ops;
void *pvt_data;
};
-typedef int (*be_init_fn_t)(struct be_ctx *, struct dp_mod_ops **, void **);
+typedef int (*be_init_fn_t)(TALLOC_CTX *, struct dp_be_mod_ops **, void **);
static int service_identity(DBusMessage *message, void *data, DBusMessage **r);
static int service_pong(DBusMessage *message, void *data, DBusMessage **r);
@@ -374,6 +370,10 @@ static int load_backend(struct be_ctx *ctx)
path = talloc_asprintf(tmp_ctx, "%s/libsss_%s.so",
DATA_PROVIDER_PLUGINS_PATH, ctx->name);
+ if (!path) {
+ ret = ENOMEM;
+ goto done;
+ }
handle = dlopen(path, RTLD_NOW);
if (!handle) {
@@ -427,9 +427,10 @@ int be_process_init(TALLOC_CTX *mem_ctx,
}
ctx->ev = ev;
ctx->cdb = cdb;
+ ctx->name = talloc_strdup(ctx, be_name);
ctx->domain = talloc_strdup(ctx, be_domain);
ctx->identity = talloc_asprintf(ctx, "%%BE_%s", be_domain);
- if (!ctx->domain || !ctx->identity) {
+ if (!ctx->name || !ctx->domain || !ctx->identity) {
DEBUG(0, ("Out of memory!?\n"));
return ENOMEM;
}
diff --git a/server/providers/ldap_provider.c b/server/providers/ldap_provider.c
new file mode 100644
index 00000000..a6628f40
--- /dev/null
+++ b/server/providers/ldap_provider.c
@@ -0,0 +1,173 @@
+/*
+ SSSD
+
+ Test LDAP Module
+
+ Copyright (C) Simo Sorce <ssorce@redhat.com> 2008
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <nss.h>
+#include <errno.h>
+#include <pwd.h>
+#include <grp.h>
+#include "util/util.h"
+#include "providers/data_provider.h"
+
+struct ldap_nss_ops {
+ enum nss_status (*getpwnam_r)(const char *name, struct passwd *result,
+ char *buffer, size_t buflen, int *errnop);
+ enum nss_status (*getpwuid_r)(uid_t uid, struct passwd *result,
+ char *buffer, size_t buflen, int *errnop);
+ enum nss_status (*setpwent)(void);
+ enum nss_status (*getpwent_r)(struct passwd *result,
+ char *buffer, size_t buflen, int *errnop);
+ enum nss_status (*endpwent)(void);
+
+ enum nss_status (*getgrnam_r)(const char *name, struct group *result,
+ char *buffer, size_t buflen, int *errnop);
+ enum nss_status (*getgrgid_r)(gid_t gid, struct group *result,
+ char *buffer, size_t buflen, int *errnop);
+ enum nss_status (*setgrent)(void);
+ enum nss_status (*getgrent_r)(struct group *result,
+ char *buffer, size_t buflen, int *errnop);
+ enum nss_status (*endgrent)(void);
+ enum nss_status (*initgroups_dyn)(const char *user, gid_t group,
+ long int *start, long int *size,
+ gid_t **groups, long int limit,
+ int *errnop);
+};
+
+struct ldap_ctx {
+ struct ldap_nss_ops ops;
+};
+
+static int ldap_check_online(void *pvt_data, int *reply);
+
+struct dp_be_mod_ops ldap_mod_ops = {
+ .check_online = ldap_check_online
+};
+
+static int ldap_check_online(void *pvt_data, int *reply)
+{
+ *reply = MOD_ONLINE;
+ return EOK;
+}
+
+int sssm_ldap_init(TALLOC_CTX *bectx, struct dp_be_mod_ops **ops, void **pvt_data)
+{
+ struct ldap_ctx *ctx;
+ void *handle;
+ int ret;
+
+ ctx = talloc(bectx, struct ldap_ctx);
+ if (!ctx) {
+ return ENOMEM;
+ }
+
+ handle = dlopen("/usr/lib64/libnss_ldap.so.2", RTLD_NOW);
+ if (!handle) {
+ DEBUG(0, ("Unable to load libnss_ldap module with path, error: %s\n", dlerror()));
+ ret = ELIBACC;
+ goto done;
+ }
+
+ ctx->ops.getpwnam_r = dlsym(handle, "_nss_ldap_getpwnam_r");
+ if (!ctx->ops.getpwnam_r) {
+ DEBUG(0, ("Failed to load NSS fns, error: %s\n", dlerror()));
+ ret = ELIBBAD;
+ goto done;
+ }
+
+ ctx->ops.getpwuid_r = dlsym(handle, "_nss_ldap_getpwuid_r");
+ if (!ctx->ops.getpwuid_r) {
+ DEBUG(0, ("Failed to load NSS fns, error: %s\n", dlerror()));
+ ret = ELIBBAD;
+ goto done;
+ }
+
+ ctx->ops.setpwent = dlsym(handle, "_nss_ldap_setpwent");
+ if (!ctx->ops.setpwent) {
+ DEBUG(0, ("Failed to load NSS fns, error: %s\n", dlerror()));
+ ret = ELIBBAD;
+ goto done;
+ }
+
+ ctx->ops.getpwent_r = dlsym(handle, "_nss_ldap_getpwent_r");
+ if (!ctx->ops.getpwent_r) {
+ DEBUG(0, ("Failed to load NSS fns, error: %s\n", dlerror()));
+ ret = ELIBBAD;
+ goto done;
+ }
+
+ ctx->ops.endpwent = dlsym(handle, "_nss_ldap_endpwent");
+ if (!ctx->ops.endpwent) {
+ DEBUG(0, ("Failed to load NSS fns, error: %s\n", dlerror()));
+ ret = ELIBBAD;
+ goto done;
+ }
+
+ ctx->ops.getgrnam_r = dlsym(handle, "_nss_ldap_getgrnam_r");
+ if (!ctx->ops.getgrnam_r) {
+ DEBUG(0, ("Failed to load NSS fns, error: %s\n", dlerror()));
+ ret = ELIBBAD;
+ goto done;
+ }
+
+ ctx->ops.getgrgid_r = dlsym(handle, "_nss_ldap_getgrgid_r");
+ if (!ctx->ops.getgrgid_r) {
+ DEBUG(0, ("Failed to load NSS fns, error: %s\n", dlerror()));
+ ret = ELIBBAD;
+ goto done;
+ }
+
+ ctx->ops.setgrent = dlsym(handle, "_nss_ldap_setgrent");
+ if (!ctx->ops.setgrent) {
+ DEBUG(0, ("Failed to load NSS fns, error: %s\n", dlerror()));
+ ret = ELIBBAD;
+ goto done;
+ }
+
+ ctx->ops.getgrent_r = dlsym(handle, "_nss_ldap_getgrent_r");
+ if (!ctx->ops.getgrent_r) {
+ DEBUG(0, ("Failed to load NSS fns, error: %s\n", dlerror()));
+ ret = ELIBBAD;
+ goto done;
+ }
+
+ ctx->ops.endgrent = dlsym(handle, "_nss_ldap_endgrent");
+ if (!ctx->ops.endgrent) {
+ DEBUG(0, ("Failed to load NSS fns, error: %s\n", dlerror()));
+ ret = ELIBBAD;
+ goto done;
+ }
+
+ ctx->ops.initgroups_dyn = dlsym(handle, "_nss_ldap_initgroups_dyn");
+ if (!ctx->ops.initgroups_dyn) {
+ DEBUG(0, ("Failed to load NSS fns, error: %s\n", dlerror()));
+ ret = ELIBBAD;
+ goto done;
+ }
+
+ *ops = &ldap_mod_ops;
+ *pvt_data = ctx;
+ ret = EOK;
+
+done:
+ if (ret != EOK) {
+ talloc_free(ctx);
+ }
+ return ret;
+}
diff --git a/server/server.mk b/server/server.mk
index 7f9274d9..f41c247a 100644
--- a/server/server.mk
+++ b/server/server.mk
@@ -19,6 +19,9 @@ DP_OBJ = \
DP_BE_OBJ = \
providers/data_provider_be.o
+LDAP_BE_OBJ = \
+ providers/ldap_provider.o
+
NSSSRV_OBJ = \
nss/nsssrv.o \
nss/nsssrv_packet.o \
@@ -39,4 +42,7 @@ sbin/sssd_dp: $(DP_OBJ) $(UTIL_OBJ)
$(CC) -o sbin/sssd_dp $(DP_OBJ) $(UTIL_OBJ) $(LDFLAGS) $(LIBS)
sbin/sssd_be: $(DP_BE_OBJ) $(UTIL_OBJ)
- $(CC) -o sbin/sssd_be $(DP_BE_OBJ) $(UTIL_OBJ) $(LDFLAGS) $(LIBS)
+ $(CC) -Wl,-E -o sbin/sssd_be $(DP_BE_OBJ) $(UTIL_OBJ) $(LDFLAGS) $(LIBS)
+
+lib/libsss_ldap.$(SHLIBEXT): $(LDAP_BE_OBJ)
+ $(SHLD) $(SHLD_FLAGS) -o $@ $(LDAP_BE_OBJ) $(LDFLAGS) $(LIBS)