--- /dev/null
+/*
+ * Copyright (c) 2012-2018, JANET(UK)
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. 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.
+ *
+ * 3. Neither the name of JANET(UK) 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 HOLDER 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.
+ *
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include <jansson.h>
+#include <dirent.h>
+#include <talloc.h>
+
+#include <tr_cfgwatch.h>
+#include <tr_comm.h>
+#include <tr_config.h>
+#include <tr_gss_names.h>
+#include <tr_debug.h>
+#include <tr_filter.h>
+#include <trust_router/tr_constraint.h>
+#include <tr_idp.h>
+#include <tr.h>
+#include <trust_router/trp.h>
+
+#if JANSSON_VERSION_HEX < 0x020500
+#include "jansson_iterators.h"
+#endif
+
+TR_AAA_SERVER *tr_cfg_parse_one_aaa_server(TALLOC_CTX *mem_ctx, json_t *jaddr, TR_CFG_RC *rc)
+{
+ TALLOC_CTX *tmp_ctx = talloc_new(NULL);
+ TR_AAA_SERVER *aaa = NULL;
+
+ if ((!jaddr) || (!json_is_string(jaddr))) {
+ tr_debug("tr_cfg_parse_one_aaa_server: Bad parameters.");
+ *rc = TR_CFG_BAD_PARAMS;
+ goto cleanup;
+ }
+
+ aaa = tr_aaa_server_from_string(mem_ctx, json_string_value(jaddr));
+ if (aaa == NULL) {
+ tr_debug("tr_cfg_parse_one_aaa_server: Out of memory allocating AAA server.");
+ *rc = TR_CFG_NOMEM;
+ goto cleanup;
+ }
+
+ if (tr_aaa_server_get_hostname(aaa)->len == 0) {
+ tr_debug("tr_cfg_parse_one_aaa_server: Invalid hostname for AAA server (%s)",
+ json_string_value(jaddr));
+ *rc = TR_CFG_NOPARSE;
+ goto cleanup;
+ }
+
+ if ((tr_aaa_server_get_port(aaa) <= 0)
+ || (tr_aaa_server_get_port(aaa) > 65535)) {
+ tr_debug("tr_cfg_parse_one_aaa_server: Invalid AAA server port (%s)",
+ json_string_value(jaddr));
+ *rc = TR_CFG_NOPARSE;
+ goto cleanup;
+ }
+
+ /* success ! */
+ *rc = TR_CFG_SUCCESS;
+ talloc_steal(mem_ctx, aaa);
+
+cleanup:
+ if (*rc != TR_CFG_SUCCESS)
+ aaa = NULL;
+ talloc_free(tmp_ctx);
+ return aaa;
+}
+
+static TR_AAA_SERVER *tr_cfg_parse_aaa_servers(TALLOC_CTX *mem_ctx, json_t *jaaas, TR_CFG_RC *rc)
+{
+ TALLOC_CTX *tmp_ctx=NULL;
+ TR_AAA_SERVER *aaa = NULL;
+ TR_AAA_SERVER *temp_aaa = NULL;
+ int i = 0;
+
+ for (i = 0; i < json_array_size(jaaas); i++) {
+ /* rc gets set in here */
+ if (NULL == (temp_aaa = tr_cfg_parse_one_aaa_server(tmp_ctx, json_array_get(jaaas, i), rc))) {
+ talloc_free(tmp_ctx);
+ return NULL;
+ }
+ /* TBD -- IPv6 addresses */
+ // tr_debug("tr_cfg_parse_aaa_servers: Configuring AAA Server: ip_addr = %s.", inet_ntoa(temp_aaa->aaa_server_addr));
+ temp_aaa->next = aaa;
+ aaa = temp_aaa;
+ }
+ tr_debug("tr_cfg_parse_aaa_servers: Finished (rc=%d)", *rc);
+
+ for (temp_aaa=aaa; temp_aaa!=NULL; temp_aaa=temp_aaa->next)
+ talloc_steal(mem_ctx, temp_aaa);
+ talloc_free(tmp_ctx);
+ return aaa;
+}
+
+static TR_APC *tr_cfg_parse_one_apc(TALLOC_CTX *mem_ctx, json_t *japc, TR_CFG_RC *rc)
+{
+ TR_APC *apc=NULL;
+ TR_NAME *name=NULL;
+
+ *rc = TR_CFG_SUCCESS; /* presume success */
+
+ if ((!japc) || (!rc) || (!json_is_string(japc))) {
+ tr_debug("tr_cfg_parse_one_apc: Bad parameters.");
+ if (rc)
+ *rc = TR_CFG_BAD_PARAMS;
+ return NULL;
+ }
+
+ apc=tr_apc_new(mem_ctx);
+ if (apc==NULL) {
+ tr_debug("tr_cfg_parse_one_apc: Out of memory.");
+ *rc = TR_CFG_NOMEM;
+ return NULL;
+ }
+
+ name=tr_new_name(json_string_value(japc));
+ if (name==NULL) {
+ tr_debug("tr_cfg_parse_one_apc: No memory for APC name.");
+ tr_apc_free(apc);
+ *rc = TR_CFG_NOMEM;
+ return NULL;
+ }
+ tr_apc_set_id(apc, name); /* apc is now responsible for freeing the name */
+
+ return apc;
+}
+
+TR_APC *tr_cfg_parse_apcs(TALLOC_CTX *mem_ctx, json_t *japcs, TR_CFG_RC *rc)
+{
+ TALLOC_CTX *tmp_ctx=talloc_new(NULL);
+ TR_APC *apcs=NULL;
+ TR_APC *new_apc=NULL;
+ int ii=0;
+ TR_CFG_RC call_rc=TR_CFG_ERROR;
+
+ *rc = TR_CFG_SUCCESS; /* presume success */
+
+ if ((!japcs) || (!rc) || (!json_is_array(japcs))) {
+ tr_debug("tr_cfg_parse_one_apc: Bad parameters.");
+ if (rc)
+ *rc = TR_CFG_BAD_PARAMS;
+ return NULL;
+ }
+
+ for (ii=0; ii<json_array_size(japcs); ii++) {
+ new_apc=tr_cfg_parse_one_apc(tmp_ctx, json_array_get(japcs, ii), &call_rc);
+ if ((call_rc!=TR_CFG_SUCCESS) || (new_apc==NULL)) {
+ tr_debug("tr_cfg_parse_apcs: Error parsing APC %d.", ii+1);
+ *rc=TR_CFG_NOPARSE;
+ goto cleanup;
+ }
+ tr_apc_add(apcs, new_apc);
+ }
+
+ talloc_steal(mem_ctx, apcs);
+ *rc=TR_CFG_SUCCESS;
+
+cleanup:
+ if (*rc != TR_CFG_SUCCESS)
+ apcs = NULL;
+
+ talloc_free(tmp_ctx);
+ return apcs;
+}
+
+static TR_NAME *tr_cfg_parse_name(TALLOC_CTX *mem_ctx, json_t *jname, TR_CFG_RC *rc)
+{
+ TR_NAME *name=NULL;
+ *rc=TR_CFG_ERROR;
+
+ if ((jname==NULL) || (!json_is_string(jname))) {
+ tr_err("tr_cfg_parse_name: name missing or not a string");
+ *rc=TR_CFG_BAD_PARAMS;
+ name=NULL;
+ } else {
+ name=tr_new_name(json_string_value(jname));
+ if (name==NULL) {
+ tr_err("tr_cfg_parse_name: could not allocate name");
+ *rc=TR_CFG_NOMEM;
+ } else {
+ *rc=TR_CFG_SUCCESS;
+ }
+ }
+ return name;
+}
+
+static int tr_cfg_parse_shared_config(json_t *jsc, TR_CFG_RC *rc)
+{
+ const char *shared=NULL;
+ *rc=TR_CFG_SUCCESS;
+
+ if ((jsc==NULL) ||
+ (!json_is_string(jsc)) ||
+ (NULL==(shared=json_string_value(jsc)))) {
+ *rc=TR_CFG_BAD_PARAMS;
+ return -1;
+ }
+
+ if (0==strcmp(shared, "no"))
+ return 0;
+ else if (0==strcmp(shared, "yes"))
+ return 1;
+
+ /* any other value is an error */
+ tr_debug("tr_cfg_parse_shared_config: invalid shared_config value \"%s\" (should be \"yes\" or \"no\")",
+ shared);
+ *rc=TR_CFG_NOPARSE;
+ return -1;
+}
+
+static TR_REALM_ORIGIN tr_cfg_realm_origin(json_t *jrealm)
+{
+ json_t *jremote=json_object_get(jrealm, "remote");
+ const char *s=NULL;
+
+ if (jremote==NULL)
+ return TR_REALM_LOCAL;
+ if (!json_is_string(jremote)) {
+ tr_warning("tr_cfg_realm_origin: \"remote\" is not a string, assuming this is a local realm.");
+ return TR_REALM_LOCAL;
+ }
+ s=json_string_value(jremote);
+ if (strcasecmp(s, "yes")==0)
+ return TR_REALM_REMOTE_INCOMPLETE;
+ else if (strcasecmp(s, "no")!=0)
+ tr_warning("tr_cfg_realm_origin: \"remote\" is neither 'yes' nor 'no', assuming this is a local realm.");
+
+ return TR_REALM_LOCAL;
+}
+
+/* Parse the identity provider object from a realm and fill in the given TR_IDP_REALM. */
+static TR_CFG_RC tr_cfg_parse_idp(TR_IDP_REALM *idp, json_t *jidp)
+{
+ TALLOC_CTX *tmp_ctx=talloc_new(NULL);
+ TR_APC *apcs=NULL;
+ TR_AAA_SERVER *aaa=NULL;
+ TR_CFG_RC rc=TR_CFG_ERROR;
+
+ if (jidp==NULL)
+ goto cleanup;
+
+ idp->shared_config=tr_cfg_parse_shared_config(json_object_get(jidp, "shared_config"), &rc);
+ if (rc!=TR_CFG_SUCCESS) {
+ tr_err("tr_cfg_parse_idp: missing or malformed shared_config specification");
+ rc=TR_CFG_NOPARSE;
+ goto cleanup;
+ }
+
+ apcs=tr_cfg_parse_apcs(tmp_ctx, json_object_get(jidp, "apcs"), &rc);
+ if ((rc!=TR_CFG_SUCCESS) || (apcs==NULL)) {
+ tr_err("tr_cfg_parse_idp: unable to parse APC");
+ rc=TR_CFG_NOPARSE;
+ goto cleanup;
+ }
+
+ aaa=tr_cfg_parse_aaa_servers(idp, json_object_get(jidp, "aaa_servers"), &rc);
+ if (rc!=TR_CFG_SUCCESS) {
+ tr_err("tr_cfg_parse_idp: unable to parse AAA servers");
+ rc=TR_CFG_NOPARSE;
+ goto cleanup;
+ }
+
+ tr_debug("tr_cfg_parse_idp: APC=\"%.*s\"",
+ apcs->id->len,
+ apcs->id->buf);
+
+ /* done, fill in the idp structures */
+ idp->apcs=apcs;
+ talloc_steal(idp, apcs);
+ idp->aaa_servers=aaa;
+ rc=TR_CFG_SUCCESS;
+
+cleanup:
+ if (rc!=TR_CFG_SUCCESS) {
+ if (apcs!=NULL)
+ tr_apc_free(apcs);
+ if (aaa!=NULL)
+ tr_aaa_server_free(aaa);
+ }
+
+ talloc_free(tmp_ctx);
+ return rc;
+}
+
+/* parses idp realm */
+static TR_IDP_REALM *tr_cfg_parse_one_idp_realm(TALLOC_CTX *mem_ctx, json_t *jrealm, TR_CFG_RC *rc)
+{
+ TALLOC_CTX *tmp_ctx=talloc_new(NULL);
+ TR_IDP_REALM *realm=NULL;
+ TR_CFG_RC call_rc=TR_CFG_ERROR;
+
+ *rc=TR_CFG_ERROR; /* default to error if not set */
+
+ if ((!jrealm) || (!rc)) {
+ tr_err("tr_cfg_parse_one_idp_realm: Bad parameters.");
+ if (rc)
+ *rc=TR_CFG_BAD_PARAMS;
+ goto cleanup;
+ }
+
+ if (NULL==(realm=tr_idp_realm_new(tmp_ctx))) {
+ tr_err("tr_cfg_parse_one_idp_realm: could not allocate idp realm.");
+ *rc=TR_CFG_NOMEM;
+ goto cleanup;
+ }
+
+ realm->origin=tr_cfg_realm_origin(jrealm);
+ if (realm->origin!=TR_REALM_LOCAL) {
+ tr_debug("tr_cfg_parse_one_idp_realm: realm is remote, should not have full IdP info.");
+ *rc=TR_CFG_NOPARSE;
+ goto cleanup;
+ }
+
+ /* must have a name */
+ realm->realm_id=tr_cfg_parse_name(realm,
+ json_object_get(jrealm, "realm"),
+ &call_rc);
+ if ((call_rc!=TR_CFG_SUCCESS) || (realm->realm_id==NULL)) {
+ tr_err("tr_cfg_parse_one_idp_realm: could not parse realm name");
+ *rc=TR_CFG_NOPARSE;
+ goto cleanup;
+ }
+ tr_debug("tr_cfg_parse_one_idp_realm: realm_id=\"%.*s\"",
+ realm->realm_id->len,
+ realm->realm_id->buf);
+
+ call_rc=tr_cfg_parse_idp(realm, json_object_get(jrealm, "identity_provider"));
+ if (call_rc!=TR_CFG_SUCCESS) {
+ tr_err("tr_cfg_parse_one_idp_realm: could not parse identity_provider.");
+ *rc=TR_CFG_NOPARSE;
+ goto cleanup;
+ }
+
+ *rc=TR_CFG_SUCCESS;
+
+cleanup:
+ if (*rc==TR_CFG_SUCCESS)
+ talloc_steal(mem_ctx, realm);
+ else {
+ talloc_free(realm);
+ realm=NULL;
+ }
+
+ talloc_free(tmp_ctx);
+ return realm;
+}
+
+/* Determine whether the realm is an IDP realm */
+static int tr_cfg_is_idp_realm(json_t *jrealm)
+{
+ /* If a realm spec contains an identity_provider, it's an IDP realm. */
+ if (NULL != json_object_get(jrealm, "identity_provider"))
+ return 1;
+ else
+ return 0;
+}
+
+static TR_IDP_REALM *tr_cfg_parse_one_remote_realm(TALLOC_CTX *mem_ctx, json_t *jrealm, TR_CFG_RC *rc)
+{
+ TALLOC_CTX *tmp_ctx=talloc_new(NULL);
+ TR_IDP_REALM *realm=talloc(mem_ctx, TR_IDP_REALM);
+
+ *rc=TR_CFG_ERROR; /* default to error if not set */
+
+ if ((!jrealm) || (!rc)) {
+ tr_err("tr_cfg_parse_one_remote_realm: Bad parameters.");
+ if (rc)
+ *rc=TR_CFG_BAD_PARAMS;
+ goto cleanup;
+ }
+
+ if (NULL==(realm=tr_idp_realm_new(tmp_ctx))) {
+ tr_err("tr_cfg_parse_one_remote_realm: could not allocate idp realm.");
+ *rc=TR_CFG_NOMEM;
+ goto cleanup;
+ }
+
+ /* must have a name */
+ realm->realm_id=tr_cfg_parse_name(realm,
+ json_object_get(jrealm, "realm"),
+ rc);
+ if ((*rc!=TR_CFG_SUCCESS) || (realm->realm_id==NULL)) {
+ tr_err("tr_cfg_parse_one_remote_realm: could not parse realm name");
+ *rc=TR_CFG_NOPARSE;
+ goto cleanup;
+ }
+ tr_debug("tr_cfg_parse_one_remote_realm: realm_id=\"%.*s\"",
+ realm->realm_id->len,
+ realm->realm_id->buf);
+
+ realm->origin=tr_cfg_realm_origin(jrealm);
+ *rc=TR_CFG_SUCCESS;
+
+cleanup:
+ if (*rc==TR_CFG_SUCCESS)
+ talloc_steal(mem_ctx, realm);
+ else {
+ talloc_free(realm);
+ realm=NULL;
+ }
+
+ talloc_free(tmp_ctx);
+ return realm;
+}
+
+static int tr_cfg_is_remote_realm(json_t *jrealm)
+{
+ return (tr_cfg_realm_origin(jrealm)!=TR_REALM_LOCAL);
+}
+
+/* Parse any idp realms in the j_realms object. Ignores other realm types. */
+TR_IDP_REALM *tr_cfg_parse_idp_realms(TALLOC_CTX *mem_ctx, json_t *jrealms, TR_CFG_RC *rc)
+{
+ TALLOC_CTX *tmp_ctx=talloc_new(NULL);
+ TR_IDP_REALM *realms=NULL;
+ TR_IDP_REALM *new_realm=NULL;
+ json_t *this_jrealm=NULL;
+ int ii=0;
+
+ *rc=TR_CFG_ERROR;
+ if ((jrealms==NULL) || (!json_is_array(jrealms))) {
+ tr_err("tr_cfg_parse_idp_realms: realms not an array");
+ *rc=TR_CFG_BAD_PARAMS;
+ goto cleanup;
+ }
+
+ for (ii=0; ii<json_array_size(jrealms); ii++) {
+ this_jrealm=json_array_get(jrealms, ii);
+ if (tr_cfg_is_idp_realm(this_jrealm)) {
+ new_realm=tr_cfg_parse_one_idp_realm(tmp_ctx, this_jrealm, rc);
+ if ((*rc)!=TR_CFG_SUCCESS) {
+ tr_err("tr_cfg_parse_idp_realms: error decoding realm entry %d", ii+1);
+ *rc=TR_CFG_NOPARSE;
+ goto cleanup;
+ }
+ tr_idp_realm_add(realms, new_realm);
+ } else if (tr_cfg_is_remote_realm(this_jrealm)) {
+ new_realm=tr_cfg_parse_one_remote_realm(tmp_ctx, this_jrealm, rc);
+ if ((*rc)!=TR_CFG_SUCCESS) {
+ tr_err("tr_cfg_parse_idp_realms: error decoding remote realm entry %d", ii+1);
+ *rc=TR_CFG_NOPARSE;
+ goto cleanup;
+ }
+ tr_idp_realm_add(realms, new_realm);
+ }
+ }
+
+ *rc=TR_CFG_SUCCESS;
+ talloc_steal(mem_ctx, realms);
+
+cleanup:
+ talloc_free(tmp_ctx);
+ return realms;
+}
projects / trust_router.git / blobdiff