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Diffstat (limited to 'server/nss/nsssrv_ldb.c')
-rw-r--r--server/nss/nsssrv_ldb.c762
1 files changed, 0 insertions, 762 deletions
diff --git a/server/nss/nsssrv_ldb.c b/server/nss/nsssrv_ldb.c
deleted file mode 100644
index d9c40463..00000000
--- a/server/nss/nsssrv_ldb.c
+++ /dev/null
@@ -1,762 +0,0 @@
-/*
- SSSD
-
- NSS Responder
-
- 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 "ldb.h"
-#include "ldb_errors.h"
-#include "util/util.h"
-#include "nss/nsssrv.h"
-#include "nss/nsssrv_ldb.h"
-#include "confdb/confdb.h"
-
-struct nss_ldb_search_ctx {
- struct nss_ldb_ctx *nlctx;
- const char *base_dn;
- nss_ldb_callback_t callback;
- void *ptr;
- struct ldb_result *res;
-};
-
-static int nss_ldb_error_to_errno(int lerr)
-{
- /* fake it up for now, requires a mapping table */
- return EIO;
-}
-
-static void request_error(struct nss_ldb_search_ctx *sctx, int ldb_error)
-{
- sctx->callback(sctx->ptr, nss_ldb_error_to_errno(ldb_error), sctx->res);
-}
-
-static void request_done(struct nss_ldb_search_ctx *sctx)
-{
- sctx->callback(sctx->ptr, EOK, sctx->res);
-}
-
-static int get_gen_callback(struct ldb_request *req,
- struct ldb_reply *ares)
-{
- struct nss_ldb_search_ctx *sctx;
- struct ldb_result *res;
- int n;
-
- sctx = talloc_get_type(req->context, struct nss_ldb_search_ctx);
- res = sctx->res;
-
- if (!ares) {
- request_error(sctx, LDB_ERR_OPERATIONS_ERROR);
- return LDB_ERR_OPERATIONS_ERROR;
- }
- if (ares->error != LDB_SUCCESS) {
- request_error(sctx, ares->error);
- return ares->error;
- }
-
- switch (ares->type) {
- case LDB_REPLY_ENTRY:
- res->msgs = talloc_realloc(res, res->msgs,
- struct ldb_message *,
- res->count + 2);
- if (!res->msgs) {
- request_error(sctx, LDB_ERR_OPERATIONS_ERROR);
- return LDB_ERR_OPERATIONS_ERROR;
- }
-
- res->msgs[res->count + 1] = NULL;
-
- res->msgs[res->count] = talloc_steal(res->msgs, ares->message);
- res->count++;
- break;
-
- case LDB_REPLY_REFERRAL:
- if (res->refs) {
- for (n = 0; res->refs[n]; n++) /*noop*/ ;
- } else {
- n = 0;
- }
-
- res->refs = talloc_realloc(res, res->refs, char *, n + 2);
- if (! res->refs) {
- request_error(sctx, LDB_ERR_OPERATIONS_ERROR);
- return LDB_ERR_OPERATIONS_ERROR;
- }
-
- res->refs[n] = talloc_steal(res->refs, ares->referral);
- res->refs[n + 1] = NULL;
- break;
-
- case LDB_REPLY_DONE:
- res->controls = talloc_steal(res, ares->controls);
-
- /* this is the last message, and means the request is done */
- request_done(sctx);
- return LDB_SUCCESS;
- }
-
- talloc_free(ares);
- return LDB_SUCCESS;
-}
-
-static struct nss_ldb_search_ctx *init_src_ctx(TALLOC_CTX *mem_ctx,
- const char *base_dn,
- struct nss_ldb_ctx *ctx,
- nss_ldb_callback_t fn,
- void *ptr)
-{
- struct nss_ldb_search_ctx *sctx;
-
- sctx = talloc(mem_ctx, struct nss_ldb_search_ctx);
- if (!sctx) {
- return NULL;
- }
- sctx->nlctx = ctx;
- sctx->base_dn = base_dn;
- sctx->callback = fn;
- sctx->ptr = ptr;
- sctx->res = talloc_zero(sctx, struct ldb_result);
- if (!sctx->res) {
- talloc_free(sctx);
- return NULL;
- }
-
- return sctx;
-}
-
-/* users */
-
-static int pwd_search(struct nss_ldb_search_ctx *sctx,
- struct nss_ldb_ctx *ctx,
- const char *expression)
-{
- static const char *attrs[] = NSS_PW_ATTRS;
- struct ldb_request *req;
- int ret;
-
- ret = ldb_build_search_req(&req, ctx->ldb, sctx,
- ldb_dn_new(sctx, ctx->ldb, sctx->base_dn),
- LDB_SCOPE_SUBTREE,
- expression, attrs, NULL,
- sctx, get_gen_callback,
- NULL);
- if (ret != LDB_SUCCESS) {
- return nss_ldb_error_to_errno(ret);
- }
-
- ret = ldb_request(ctx->ldb, req);
- if (ret != LDB_SUCCESS) {
- return nss_ldb_error_to_errno(ret);
- }
-
- return EOK;
-}
-
-int nss_ldb_getpwnam(TALLOC_CTX *mem_ctx,
- struct event_context *ev,
- struct nss_ldb_ctx *ctx,
- const char *domain,
- const char *name,
- nss_ldb_callback_t fn, void *ptr)
-{
- struct nss_ldb_search_ctx *sctx;
- const char *base_dn;
- char *expression;
-
- if (domain) {
- base_dn = talloc_asprintf(mem_ctx, NSS_TMPL_USER_BASE, domain);
- } else {
- base_dn = NSS_DEF_BASE;
- }
- if (!base_dn) {
- return ENOMEM;
- }
-
- sctx = init_src_ctx(mem_ctx, base_dn, ctx, fn, ptr);
- if (!sctx) {
- return ENOMEM;
- }
-
- expression = talloc_asprintf(sctx, NSS_PWNAM_FILTER, name);
- if (!expression) {
- talloc_free(sctx);
- return ENOMEM;
- }
-
- return pwd_search(sctx, ctx, expression);
-}
-
-int nss_ldb_getpwuid(TALLOC_CTX *mem_ctx,
- struct event_context *ev,
- struct nss_ldb_ctx *ctx,
- const char *domain,
- uint64_t uid,
- nss_ldb_callback_t fn, void *ptr)
-{
- struct nss_ldb_search_ctx *sctx;
- unsigned long long int filter_uid = uid;
- const char *base_dn;
- char *expression;
-
- if (domain) {
- base_dn = talloc_asprintf(mem_ctx, NSS_TMPL_USER_BASE, domain);
- } else {
- base_dn = NSS_DEF_BASE;
- }
- if (!base_dn) {
- return ENOMEM;
- }
-
- sctx = init_src_ctx(mem_ctx, base_dn, ctx, fn, ptr);
- if (!sctx) {
- return ENOMEM;
- }
-
- expression = talloc_asprintf(sctx, NSS_PWUID_FILTER, filter_uid);
- if (!expression) {
- talloc_free(sctx);
- return ENOMEM;
- }
-
- return pwd_search(sctx, ctx, expression);
-}
-
-int nss_ldb_enumpwent(TALLOC_CTX *mem_ctx,
- struct event_context *ev,
- struct nss_ldb_ctx *ctx,
- nss_ldb_callback_t fn, void *ptr)
-{
- struct nss_ldb_search_ctx *sctx;
-
- sctx = init_src_ctx(mem_ctx, NSS_DEF_BASE, ctx, fn, ptr);
- if (!sctx) {
- return ENOMEM;
- }
-
- return pwd_search(sctx, ctx, NSS_PWENT_FILTER);
-}
-
-/* groups */
-
-struct get_mem_ctx {
- struct nss_ldb_search_ctx *ret_sctx;
- struct ldb_message **grps;
- int num_grps;
-};
-
-static void get_members(void *ptr, int status, struct ldb_result *res)
-{
- struct nss_ldb_ctx *ctx;
- struct nss_ldb_search_ctx *sctx;
- struct get_mem_ctx *gmctx;
- struct nss_ldb_search_ctx *mem_sctx;
- struct ldb_request *req;
- struct ldb_message *msg;
- struct ldb_result *ret_res;
- static const char *attrs[] = NSS_GRPW_ATTRS;
- const char *expression;
- int ret, i;
-
- sctx = talloc_get_type(ptr, struct nss_ldb_search_ctx);
- gmctx = talloc_get_type(sctx->ptr, struct get_mem_ctx);
- ctx = sctx->nlctx;
-
- if (status != LDB_SUCCESS) {
- return request_error(gmctx->ret_sctx, status);
- }
-
- ret_res = gmctx->ret_sctx->res;
-
- /* append previous search results to final (if any) */
- if (res && res->count != 0) {
- ret_res->msgs = talloc_realloc(ret_res, ret_res->msgs,
- struct ldb_message *,
- ret_res->count + res->count + 1);
- for(i = 0; i < res->count; i++) {
- ret_res->msgs[ret_res->count] = talloc_steal(ret_res, res->msgs[i]);
- ret_res->count++;
- }
- ret_res->msgs[ret_res->count] = NULL;
- }
-
- if (gmctx->grps[0] == NULL) {
- return request_done(gmctx->ret_sctx);
- }
-
- mem_sctx = init_src_ctx(gmctx, NSS_DEF_BASE, ctx, get_members, sctx);
- if (!mem_sctx) {
- return request_error(gmctx->ret_sctx, LDB_ERR_OPERATIONS_ERROR);
- }
-
- /* fetch next group to search for members */
- gmctx->num_grps--;
- msg = gmctx->grps[gmctx->num_grps];
- gmctx->grps[gmctx->num_grps] = NULL;
-
- /* queue the group entry on the final result structure */
- ret_res->msgs = talloc_realloc(ret_res, ret_res->msgs,
- struct ldb_message *,
- ret_res->count + 2);
- if (!ret_res->msgs) {
- return request_error(gmctx->ret_sctx, LDB_ERR_OPERATIONS_ERROR);
- }
- ret_res->msgs[ret_res->count + 1] = NULL;
- ret_res->msgs[ret_res->count] = talloc_steal(ret_res->msgs, msg);
- ret_res->count++;
-
- /* search for this group members */
- expression = talloc_asprintf(mem_sctx, NSS_GRNA2_FILTER,
- ldb_dn_get_linearized(msg->dn));
- if (!expression) {
- return request_error(gmctx->ret_sctx, LDB_ERR_OPERATIONS_ERROR);
- }
-
- ret = ldb_build_search_req(&req, ctx->ldb, mem_sctx,
- ldb_dn_new(mem_sctx, ctx->ldb, sctx->base_dn),
- LDB_SCOPE_SUBTREE,
- expression, attrs, NULL,
- mem_sctx, get_gen_callback,
- NULL);
- if (ret != LDB_SUCCESS) {
- return request_error(gmctx->ret_sctx, ret);
- }
-
- ret = ldb_request(ctx->ldb, req);
- if (ret != LDB_SUCCESS) {
- return request_error(gmctx->ret_sctx, ret);
- }
-}
-
-static int get_grp_callback(struct ldb_request *req,
- struct ldb_reply *ares)
-{
- struct nss_ldb_search_ctx *sctx;
- struct nss_ldb_ctx *ctx;
- struct ldb_result *res;
- int n;
-
- sctx = talloc_get_type(req->context, struct nss_ldb_search_ctx);
- ctx = sctx->nlctx;
- res = sctx->res;
-
- if (!ares) {
- request_error(sctx, LDB_ERR_OPERATIONS_ERROR);
- return LDB_ERR_OPERATIONS_ERROR;
- }
- if (ares->error != LDB_SUCCESS) {
- request_error(sctx, ares->error);
- return ares->error;
- }
-
- switch (ares->type) {
- case LDB_REPLY_ENTRY:
- res->msgs = talloc_realloc(res, res->msgs,
- struct ldb_message *,
- res->count + 2);
- if (!res->msgs) {
- request_error(sctx, LDB_ERR_OPERATIONS_ERROR);
- return LDB_ERR_OPERATIONS_ERROR;
- }
-
- res->msgs[res->count + 1] = NULL;
-
- res->msgs[res->count] = talloc_steal(res->msgs, ares->message);
- res->count++;
- break;
-
- case LDB_REPLY_REFERRAL:
- if (res->refs) {
- for (n = 0; res->refs[n]; n++) /*noop*/ ;
- } else {
- n = 0;
- }
-
- res->refs = talloc_realloc(res, res->refs, char *, n + 2);
- if (! res->refs) {
- request_error(sctx, LDB_ERR_OPERATIONS_ERROR);
- return LDB_ERR_OPERATIONS_ERROR;
- }
-
- res->refs[n] = talloc_steal(res->refs, ares->referral);
- res->refs[n + 1] = NULL;
- break;
-
- case LDB_REPLY_DONE:
- res->controls = talloc_steal(res, ares->controls);
-
- /* no results, return */
- if (res->count == 0) {
- request_done(sctx);
- return LDB_SUCCESS;
- }
- if (res->count > 0) {
- struct get_mem_ctx *gmctx;
-
- gmctx = talloc_zero(req, struct get_mem_ctx);
- if (!gmctx) {
- request_error(sctx, LDB_ERR_OPERATIONS_ERROR);
- return LDB_ERR_OPERATIONS_ERROR;
- }
- gmctx->ret_sctx = sctx;
- gmctx->grps = talloc_steal(gmctx, res->msgs);
- gmctx->num_grps = res->count;
- res->msgs = NULL;
- res->count = 0;
-
- /* re-use sctx to create a fake handler for the first call to
- * get_members() */
- sctx = init_src_ctx(gmctx, NSS_DEF_BASE, ctx, get_members, gmctx);
-
- get_members(sctx, LDB_SUCCESS, NULL);
- return LDB_SUCCESS;
- }
-
- /* anything else is an error */
- request_error(sctx, LDB_ERR_OPERATIONS_ERROR);
- return LDB_ERR_OPERATIONS_ERROR;
- }
-
- talloc_free(ares);
- return LDB_SUCCESS;
-}
-
-static int grp_search(struct nss_ldb_search_ctx *sctx,
- struct nss_ldb_ctx *ctx,
- const char *expression)
-{
- static const char *attrs[] = NSS_GRNAM_ATTRS;
- struct ldb_request *req;
- int ret;
-
- ret = ldb_build_search_req(&req, ctx->ldb, sctx,
- ldb_dn_new(sctx, ctx->ldb, sctx->base_dn),
- LDB_SCOPE_SUBTREE,
- expression, attrs, NULL,
- sctx, get_grp_callback,
- NULL);
- if (ret != LDB_SUCCESS) {
- return nss_ldb_error_to_errno(ret);
- }
-
- ret = ldb_request(ctx->ldb, req);
- if (ret != LDB_SUCCESS) {
- return nss_ldb_error_to_errno(ret);
- }
-
- return EOK;
-}
-
-int nss_ldb_getgrnam(TALLOC_CTX *mem_ctx,
- struct event_context *ev,
- struct nss_ldb_ctx *ctx,
- const char *domain,
- const char *name,
- nss_ldb_callback_t fn, void *ptr)
-{
- struct nss_ldb_search_ctx *sctx;
- const char *base_dn;
- char *expression;
-
- if (domain) {
- base_dn = talloc_asprintf(mem_ctx, NSS_TMPL_GROUP_BASE, domain);
- } else {
- base_dn = NSS_DEF_BASE;
- }
- if (!base_dn) {
- return ENOMEM;
- }
-
- sctx = init_src_ctx(mem_ctx, base_dn, ctx, fn, ptr);
- if (!sctx) {
- return ENOMEM;
- }
-
- expression = talloc_asprintf(sctx, NSS_GRNAM_FILTER, name);
- if (!expression) {
- talloc_free(sctx);
- return ENOMEM;
- }
-
- return grp_search(sctx, ctx, expression);
-}
-
-int nss_ldb_getgrgid(TALLOC_CTX *mem_ctx,
- struct event_context *ev,
- struct nss_ldb_ctx *ctx,
- const char *domain,
- uint64_t gid,
- nss_ldb_callback_t fn, void *ptr)
-{
- struct nss_ldb_search_ctx *sctx;
- unsigned long long int filter_gid = gid;
- const char *base_dn;
- char *expression;
-
- if (domain) {
- base_dn = talloc_asprintf(mem_ctx, NSS_TMPL_GROUP_BASE, domain);
- } else {
- base_dn = NSS_DEF_BASE;
- }
- if (!base_dn) {
- return ENOMEM;
- }
-
- sctx = init_src_ctx(mem_ctx, base_dn, ctx, fn, ptr);
- if (!sctx) {
- return ENOMEM;
- }
-
- expression = talloc_asprintf(sctx, NSS_GRGID_FILTER, filter_gid);
- if (!expression) {
- talloc_free(sctx);
- return ENOMEM;
- }
-
- return grp_search(sctx, ctx, expression);
-}
-
-int nss_ldb_enumgrent(TALLOC_CTX *mem_ctx,
- struct event_context *ev,
- struct nss_ldb_ctx *ctx,
- nss_ldb_callback_t fn, void *ptr)
-{
- struct nss_ldb_search_ctx *sctx;
-
- sctx = init_src_ctx(mem_ctx, NSS_DEF_BASE, ctx, fn, ptr);
- if (!sctx) {
- return ENOMEM;
- }
-
- return grp_search(sctx, ctx, NSS_GRENT_FILTER);
-}
-
-static void nss_ldb_initgr_search(void *ptr, int status,
- struct ldb_result *res)
-{
- struct nss_ldb_ctx *ctx;
- struct nss_ldb_search_ctx *sctx;
- char *expression;
- struct ldb_request *req;
- struct ldb_control **ctrl;
- struct ldb_asq_control *control;
- static const char *attrs[] = NSS_INITGR_ATTRS;
- int ret;
-
- sctx = talloc_get_type(ptr, struct nss_ldb_search_ctx);
- ctx = sctx->nlctx;
-
- if (res->count == 0) {
- return request_done(sctx);
- }
- if (res->count > 1) {
- return request_error(sctx, LDB_ERR_OPERATIONS_ERROR);
- }
-
- expression = talloc_asprintf(sctx, NSS_INITGR_FILTER);
- if (!expression) {
- return request_error(sctx, LDB_ERR_OPERATIONS_ERROR);
- }
-
- ctrl = talloc_array(sctx, struct ldb_control *, 2);
- if (!ctrl) {
- return request_error(sctx, LDB_ERR_OPERATIONS_ERROR);
- }
- ctrl[1] = NULL;
- ctrl[0] = talloc(ctrl, struct ldb_control);
- if (!ctrl[0]) {
- return request_error(sctx, LDB_ERR_OPERATIONS_ERROR);
- }
- ctrl[0]->oid = LDB_CONTROL_ASQ_OID;
- ctrl[0]->critical = 1;
- control = talloc(ctrl[0], struct ldb_asq_control);
- if (!control) {
- return request_error(sctx, LDB_ERR_OPERATIONS_ERROR);
- }
- control->request = 1;
- control->source_attribute = talloc_strdup(control, NSS_INITGR_ATTR);
- if (!control->source_attribute) {
- return request_error(sctx, LDB_ERR_OPERATIONS_ERROR);
- }
- control->src_attr_len = strlen(control->source_attribute);
- ctrl[0]->data = control;
-
- ret = ldb_build_search_req(&req, ctx->ldb, sctx,
- res->msgs[0]->dn,
- LDB_SCOPE_BASE,
- expression, attrs, ctrl,
- sctx, get_gen_callback,
- NULL);
- if (ret != LDB_SUCCESS) {
- return request_error(sctx, ret);
- }
-
- ret = ldb_request(ctx->ldb, req);
- if (ret != LDB_SUCCESS) {
- return request_error(sctx, ret);
- }
-}
-
-int nss_ldb_initgroups(TALLOC_CTX *mem_ctx,
- struct event_context *ev,
- struct nss_ldb_ctx *ctx,
- const char *domain,
- const char *name,
- nss_ldb_callback_t fn, void *ptr)
-{
- static const char *attrs[] = NSS_PW_ATTRS;
- struct nss_ldb_search_ctx *ret_sctx;
- struct nss_ldb_search_ctx *sctx;
- const char *base_dn;
- char *expression;
- struct ldb_request *req;
- int ret;
-
- if (domain) {
- base_dn = talloc_asprintf(mem_ctx, NSS_TMPL_USER_BASE, domain);
- } else {
- base_dn = NSS_DEF_BASE;
- }
- if (!base_dn) {
- return ENOMEM;
- }
-
- ret_sctx = init_src_ctx(mem_ctx, NSS_DEF_BASE, ctx, fn, ptr);
- if (!ret_sctx) {
- return ENOMEM;
- }
- sctx = init_src_ctx(ret_sctx, base_dn, ctx, nss_ldb_initgr_search, ret_sctx);
- if (!sctx) {
- talloc_free(sctx);
- return ENOMEM;
- }
-
- expression = talloc_asprintf(sctx, NSS_PWNAM_FILTER, name);
- if (!expression) {
- talloc_free(sctx);
- return ENOMEM;
- }
-
- ret = ldb_build_search_req(&req, ctx->ldb, sctx,
- ldb_dn_new(sctx, ctx->ldb, sctx->base_dn),
- LDB_SCOPE_SUBTREE,
- expression, attrs, NULL,
- sctx, get_gen_callback,
- NULL);
- if (ret != LDB_SUCCESS) {
- return nss_ldb_error_to_errno(ret);
- }
-
- ret = ldb_request(ctx->ldb, req);
- if (ret != LDB_SUCCESS) {
- return nss_ldb_error_to_errno(ret);
- }
-
- return LDB_SUCCESS;
-}
-
-static int nss_ldb_read_var(TALLOC_CTX *tmp_ctx,
- struct confdb_ctx *cdb,
- struct nss_ldb_ctx *ctx,
- const char *name,
- const char *def_value,
- const char **target)
-{
- int ret;
- char *t;
- char **values;
-
- ret = confdb_get_param(cdb, tmp_ctx,
- NSS_LDB_CONF_SECTION,
- name, &values);
- if (ret != EOK)
- return ret;
-
- if (values[0])
- t = talloc_steal(ctx, values[0]);
- else
- t = talloc_strdup(ctx, def_value);
-
- *target = t;
- return EOK;
-}
-
-static int nss_ldb_read_conf(TALLOC_CTX *mem_ctx,
- struct confdb_ctx *cdb,
- struct nss_ldb_ctx **nlctx)
-{
- struct nss_ldb_ctx *ctx;
- TALLOC_CTX *tmp_ctx;
- char *default_ldb_path;
- int ret;
-
- tmp_ctx = talloc_new(mem_ctx);
- if (!tmp_ctx)
- return ENOMEM;
-
- ctx = talloc(mem_ctx, struct nss_ldb_ctx);
- if (!ctx) {
- ret = ENOMEM;
- goto done;
- }
-
- default_ldb_path = talloc_asprintf(tmp_ctx, "%s/%s", DB_PATH, NSS_DEF_LDB_FILE);
- if (default_ldb_path == NULL) {
- ret = ENOMEM;
- goto done;
- }
-
- nss_ldb_read_var(tmp_ctx, cdb, ctx, "ldbFile",
- default_ldb_path, &ctx->ldb_file);
- DEBUG(3, ("NSS LDB Cache Path: %s\n", ctx->ldb_file));
-
- *nlctx = ctx;
- ret = EOK;
-
-done:
- talloc_free(tmp_ctx);
- return ret;
-}
-
-int nss_ldb_init(TALLOC_CTX *mem_ctx,
- struct event_context *ev,
- struct confdb_ctx *cdb,
- struct nss_ldb_ctx **nlctx)
-{
- struct nss_ldb_ctx *ctx;
- int ret;
-
- ret = nss_ldb_read_conf(mem_ctx, cdb, &ctx);
- if (ret != EOK)
- return ret;
-
- ctx->ldb = ldb_init(mem_ctx, ev);
- if (!ctx->ldb) {
- talloc_free(ctx);
- return EIO;
- }
-
- ret = ldb_connect(ctx->ldb, ctx->ldb_file, 0, NULL);
- if (ret != LDB_SUCCESS) {
- talloc_free(ctx);
- return EIO;
- }
-
- *nlctx = ctx;
-
- return EOK;
-}