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|
/**
* @file test_config.c
* @author Roman Janota <janota@cesnet.cz>
* @brief libnetconf2 YANG data configuration test
*
* @copyright
* Copyright (c) 2025 CESNET, z.s.p.o.
*
* This source code is licensed under BSD 3-Clause License (the "License").
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://opensource.org/licenses/BSD-3-Clause
*/
#define _GNU_SOURCE
#include <errno.h>
#include <pthread.h>
#include <setjmp.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <cmocka.h>
#include "ln2_test.h"
int TEST_PORT = 10050, TEST_PORT_2 = 10051, TEST_PORT_3 = 10052,
TEST_PORT_4 = 10053, TEST_PORT_5 = 10054, TEST_PORT_6 = 10055;
const char *TEST_PORT_STR = "10050", *TEST_PORT_2_STR = "10051",
*TEST_PORT_3_STR = "10052", *TEST_PORT_4_STR = "10053",
*TEST_PORT_5_STR = "10054", *TEST_PORT_6_STR = "10055";
const char *keystore_truststore_data =
"<keystore xmlns=\"urn:ietf:params:xml:ns:yang:ietf-keystore\">"
"<asymmetric-keys>"
"<asymmetric-key>"
"<name>hostkey</name>"
"<public-key-format xmlns:ct=\"urn:ietf:params:xml:ns:yang:ietf-crypto-types\">ct:ssh-public-key-format</public-key-format>"
"<public-key>AAAAB3NzaC1yc2EAAAADAQABAAABAQDPavVALiM7QwTIUAndO8E9GOkSDQWjuEwkzbJ3kOBPa7kkq71UOZFeecDjFb9eipkljfFys/JYHGQaYVF8/svT0KV5h7HlutRdF6yvqSEbjpbTORb27pdHX3iFEyDCwCIoq9vMeX+wyXnteyn01GpIL0ig0WAnvkqX/SPjuplX5ZItUSr0MhXM7fNSX50BD6G8IO0/djUcdMUcjTjGv73SxB9ZzLvxnhXuUJbzEJJJLj6qajyEIVaJSa73vA33JCD8qzarrsuITojVLPDFmeHwSAoB5dP86yop6e6ypuXzKxxef6yNXcE8oTj8UFYBIXsgIP2nBvWk41EaK0Vk3YFl</public-key>"
"<private-key-format xmlns:ct=\"urn:ietf:params:xml:ns:yang:ietf-crypto-types\">ct:rsa-private-key-format</private-key-format>"
"<cleartext-private-key>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</cleartext-private-key>"
"</asymmetric-key>"
"</asymmetric-keys>"
"</keystore>"
"<truststore xmlns=\"urn:ietf:params:xml:ns:yang:ietf-truststore\">"
"<public-key-bags>"
"<public-key-bag>"
"<name>pkbag</name>"
"<description>Test public key bag</description>"
"<public-key>"
"<name>ED25519 key</name>"
"<public-key-format xmlns:ct=\"urn:ietf:params:xml:ns:yang:ietf-crypto-types\">ct:ssh-public-key-format</public-key-format>"
"<public-key>AAAAC3NzaC1lZDI1NTE5AAAAIOr46rptg6BsWhO1JMomuh3cuCYmeuO6JfOUPs/YO35w</public-key>"
"</public-key>"
"</public-key-bag>"
"</public-key-bags>"
"</truststore>";
const char *data =
"<netconf-server xmlns=\"urn:ietf:params:xml:ns:yang:ietf-netconf-server\" "
" xmlns:yang=\"urn:ietf:params:xml:ns:yang:1\" yang:operation=\"create\">"
" <listen>"
" <endpoints>"
" <endpoint>"
" <name>e1</name>"
" <ssh>"
" <tcp-server-parameters>"
" <local-bind>"
" <local-address>127.0.0.1</local-address>"
" <local-port>%s</local-port>"
" </local-bind>"
" </tcp-server-parameters>"
" <ssh-server-parameters>"
" <server-identity>"
" <host-key>"
" <name>hostkey1</name>"
" <public-key>"
" <central-keystore-reference>hostkey</central-keystore-reference>"
" </public-key>"
" </host-key>"
" </server-identity>"
" <client-authentication>"
" <users>"
" <user>"
" <name>user1</name>"
" <public-keys>"
" <central-truststore-reference>pkbag</central-truststore-reference>"
" </public-keys>"
" </user>"
" </users>"
" </client-authentication>"
" </ssh-server-parameters>"
" </ssh>"
" </endpoint>"
" </endpoints>"
" </listen>"
"</netconf-server>\n";
const char *data2 =
"<netconf-server xmlns=\"urn:ietf:params:xml:ns:yang:ietf-netconf-server\" "
" xmlns:yang=\"urn:ietf:params:xml:ns:yang:1\" yang:operation=\"none\">\n"
" <listen>\n"
" <endpoints>\n"
" <endpoint yang:operation=\"delete\">\n"
" <name>e1</name>\n"
" <ssh>\n"
" <tcp-server-parameters>\n"
" <local-bind>\n"
" <local-address>127.0.0.1</local-address>\n"
" <local-port>%s</local-port>\n"
" </local-bind>\n"
" </tcp-server-parameters>\n"
" <ssh-server-parameters>\n"
" <server-identity>\n"
" <host-key>\n"
" <name>hostkey1</name>\n"
" <public-key>\n"
" <central-keystore-reference>hostkey</central-keystore-reference>\n"
" </public-key>\n"
" </host-key>\n"
" </server-identity>\n"
" <client-authentication>\n"
" <users>\n"
" <user>\n"
" <name>user1</name>\n"
" <public-keys>\n"
" <central-truststore-reference>pkbag</central-truststore-reference>\n"
" </public-keys>\n"
" </user>\n"
" </users>\n"
" </client-authentication>\n"
" </ssh-server-parameters>\n"
" </ssh>\n"
" </endpoint>\n"
" <endpoint yang:operation=\"create\">\n"
" <name>e2</name>\n"
" <ssh>\n"
" <tcp-server-parameters>\n"
" <local-bind>\n"
" <local-address>127.0.0.1</local-address>\n"
" <local-port>0</local-port>\n"
" </local-bind>\n"
" </tcp-server-parameters>\n"
" <ssh-server-parameters>\n"
" <server-identity>\n"
" <host-key>\n"
" <name>hostkey1</name>\n"
" <public-key>\n"
" <central-keystore-reference>hostkey</central-keystore-reference>\n"
" </public-key>\n"
" </host-key>\n"
" </server-identity>\n"
" <client-authentication>\n"
" <users>\n"
" <user>\n"
" <name>user1</name>\n"
" <public-keys>\n"
" <central-truststore-reference>pkbag</central-truststore-reference>\n"
" </public-keys>\n"
" </user>\n"
" </users>\n"
" </client-authentication>\n"
" <transport-params>\n"
" <host-key>\n"
" <host-key-alg yang:operation=\"delete\">ssh-rsa</host-key-alg>\n" // invalid, not set before
" </host-key>\n"
" </transport-params>\n"
" </ssh-server-parameters>\n"
" </ssh>\n"
" </endpoint>\n"
" </endpoints>\n"
" </listen>\n"
"</netconf-server>";
const char *data3 =
"<netconf-server xmlns=\"urn:ietf:params:xml:ns:yang:ietf-netconf-server\" "
" xmlns:yang=\"urn:ietf:params:xml:ns:yang:1\" yang:operation=\"none\">\n"
" <listen>\n"
" <endpoints>\n"
" <endpoint>\n"
" <name>e1</name>\n"
" <ssh>\n"
" <tcp-server-parameters>\n"
" <local-bind>\n"
" <local-address>127.0.0.1</local-address>\n"
" <local-port>%s</local-port>\n"
" </local-bind>\n"
" </tcp-server-parameters>\n"
" <ssh-server-parameters>\n"
" <server-identity>\n"
" <host-key>\n"
" <name>hostkey1</name>\n"
" <public-key>\n"
" <central-keystore-reference>hostkey</central-keystore-reference>\n"
" </public-key>\n"
" </host-key>\n"
" </server-identity>\n"
" <client-authentication>\n"
" <users>\n"
" <user>\n"
" <name>user1</name>\n"
" <public-keys>\n"
" <central-truststore-reference>pkbag</central-truststore-reference>\n"
" </public-keys>\n"
" <password yang:operation=\"create\">\n"
" <hashed-password>$0$cleartextpassword</hashed-password>\n"
" </password>\n"
" </user>\n"
" </users>\n"
" </client-authentication>\n"
" </ssh-server-parameters>\n"
" </ssh>\n"
" </endpoint>\n"
" </endpoints>\n"
" </listen>\n"
"</netconf-server>\n";
const char *diff1 =
"<netconf-server xmlns=\"urn:ietf:params:xml:ns:yang:ietf-netconf-server\" "
" xmlns:yang=\"urn:ietf:params:xml:ns:yang:1\" yang:operation=\"create\">\n"
" <listen>\n"
" <idle-timeout>420</idle-timeout>\n"
" <endpoints>\n"
" <endpoint>\n"
" <name>test-e1</name>\n"
" <ssh>\n"
" <tcp-server-parameters>\n"
" <local-bind>\n"
" <local-address>127.0.0.1</local-address>\n"
" <local-port>%s</local-port>\n"
" </local-bind>\n"
" <keepalives>\n"
" <idle-time>17</idle-time>\n"
" <max-probes>42</max-probes>\n"
" <probe-interval>59</probe-interval>\n"
" </keepalives>\n"
" </tcp-server-parameters>\n"
" <ssh-server-parameters>\n"
" <server-identity>\n"
" <host-key>\n"
" <name>hostkey1</name>\n"
" <public-key>\n"
" <central-keystore-reference>hostkey</central-keystore-reference>\n"
" </public-key>\n"
" </host-key>\n"
" </server-identity>\n"
" <client-authentication>\n"
" <users>\n"
" <user>\n"
" <name>user1</name>\n"
" <public-keys>\n"
" <central-truststore-reference>pkbag</central-truststore-reference>\n"
" </public-keys>\n"
" </user>\n"
" </users>\n"
" </client-authentication>\n"
" </ssh-server-parameters>\n"
" </ssh>\n"
" </endpoint>\n"
" <endpoint>\n"
" <name>e2</name>\n"
" <ssh>\n"
" <tcp-server-parameters>\n"
" <local-bind>\n"
" <local-address>127.0.0.1</local-address>\n"
" <local-port>0</local-port>\n"
" </local-bind>\n"
" </tcp-server-parameters>\n"
" <ssh-server-parameters>\n"
" <server-identity>\n"
" <host-key>\n"
" <name>hostkey1</name>\n"
" <public-key>\n"
" <central-keystore-reference>hostkey</central-keystore-reference>\n"
" </public-key>\n"
" </host-key>\n"
" </server-identity>\n"
" <client-authentication>\n"
" <users>\n"
" <user>\n"
" <name>user1</name>\n"
" <public-keys>\n"
" <central-truststore-reference>pkbag</central-truststore-reference>\n"
" </public-keys>\n"
" </user>\n"
" </users>\n"
" </client-authentication>\n"
" <transport-params>\n"
" <host-key>\n"
" <host-key-alg yang:operation=\"delete\">ssh-rsa</host-key-alg>\n"
" </host-key>\n"
" </transport-params>\n"
" </ssh-server-parameters>\n"
" </ssh>\n"
" </endpoint>\n"
" </endpoints>\n"
" </listen>\n"
"</netconf-server>\n";
static void *
client_thread(void *arg)
{
int ret;
struct nc_session *session = NULL;
struct ln2_test_ctx *test_ctx = arg;
/* skip all hostkey and known_hosts checks */
nc_client_ssh_set_knownhosts_mode(NC_SSH_KNOWNHOSTS_SKIP);
/* set directory where to search for modules */
ret = nc_client_set_schema_searchpath(MODULES_DIR);
assert_int_equal(ret, 0);
/* set ssh username */
ret = nc_client_ssh_set_username("user1");
assert_int_equal(ret, 0);
/* add client's key pair */
ret = nc_client_ssh_add_keypair(TESTS_DIR "/data/id_ed25519.pub", TESTS_DIR "/data/id_ed25519");
assert_int_equal(ret, 0);
/* wait for the server to reach polling */
pthread_barrier_wait(&test_ctx->barrier);
/* connect */
session = nc_connect_ssh("127.0.0.1", TEST_PORT, NULL);
assert_non_null(session);
nc_session_free(session, NULL);
return NULL;
}
static void
test_rollback(void **state)
{
int ret, i;
pthread_t tids[2];
struct lyd_node *tree = NULL;
struct ln2_test_ctx *test_ctx = *state;
char *data_filled = NULL;
/* print port number into the diff */
ret = asprintf(&data_filled, data, TEST_PORT_STR);
assert_int_not_equal(ret, -1);
/* setup base configuration */
ret = lyd_parse_data_mem(test_ctx->ctx, data_filled, LYD_XML, LYD_PARSE_ONLY, 0, &tree);
assert_int_equal(ret, 0);
/* add all implicit nodes */
ret = lyd_new_implicit_tree(tree, LYD_IMPLICIT_NO_STATE, NULL);
assert_int_equal(ret, 0);
ret = nc_server_config_setup_diff(tree);
assert_int_equal(ret, 0);
lyd_free_all(tree);
free(data_filled);
/* print port number into the new data */
ret = asprintf(&data_filled, data2, TEST_PORT_STR);
assert_int_not_equal(ret, -1);
/* edit the configuration, try to delete existing endpoint and add a new one with invalid operation,
* which should cause the whole edit to be rejected and rolled back */
ret = lyd_parse_data_mem(test_ctx->ctx, data_filled, LYD_XML, LYD_PARSE_ONLY, 0, &tree);
assert_int_equal(ret, 0);
/* add all implicit nodes */
ret = lyd_new_implicit_tree(tree, LYD_IMPLICIT_NO_STATE, NULL);
assert_int_equal(ret, 0);
ret = nc_server_config_setup_diff(tree);
assert_int_equal(ret, 1);
lyd_free_all(tree);
free(data_filled);
/* start client and server threads, the client should be able to connect */
ret = pthread_create(&tids[0], NULL, client_thread, *state);
assert_int_equal(ret, 0);
ret = pthread_create(&tids[1], NULL, ln2_glob_test_server_thread, *state);
assert_int_equal(ret, 0);
for (i = 0; i < 2; i++) {
pthread_join(tids[i], NULL);
}
}
static void *
conn_preserve_client_thread(void *arg)
{
int ret;
struct nc_session *session = NULL;
struct ln2_test_ctx *test_ctx = arg;
struct nc_rpc *rpc;
uint64_t msgid;
NC_MSG_TYPE msgtype;
struct lyd_node *envp = NULL, *op = NULL;
/* skip all hostkey and known_hosts checks */
nc_client_ssh_set_knownhosts_mode(NC_SSH_KNOWNHOSTS_SKIP);
/* set directory where to search for modules */
ret = nc_client_set_schema_searchpath(MODULES_DIR);
assert_int_equal(ret, 0);
/* set ssh username */
ret = nc_client_ssh_set_username("user1");
assert_int_equal(ret, 0);
/* add client's key pair */
ret = nc_client_ssh_add_keypair(TESTS_DIR "/data/id_ed25519.pub", TESTS_DIR "/data/id_ed25519");
assert_int_equal(ret, 0);
/* wait for the server to reach polling */
pthread_barrier_wait(&test_ctx->barrier);
/* connect */
session = nc_connect_ssh("127.0.0.1", TEST_PORT, NULL);
assert_non_null(session);
/* create a simple get-config rpc */
rpc = nc_rpc_getconfig(NC_DATASTORE_RUNNING, NULL, 0, NC_PARAMTYPE_CONST);
assert_non_null(rpc);
/* wait until the server applied its new config */
pthread_barrier_wait(&test_ctx->barrier);
/* send the rpc */
ret = nc_send_rpc(session, rpc, 1000, &msgid);
assert_int_equal(ret, NC_MSG_RPC);
/* receive the reply */
msgtype = nc_recv_reply(session, rpc, msgid, 1000, &envp, &op);
assert_int_equal(msgtype, NC_MSG_REPLY);
/* wait for the server thread to finish */
pthread_barrier_wait(&test_ctx->barrier);
lyd_free_all(envp);
lyd_free_all(op);
nc_rpc_free(rpc);
nc_session_free(session, NULL);
return NULL;
}
static struct nc_server_reply *
glob_rpc(struct lyd_node *rpc, struct nc_session *session)
{
(void)rpc;
(void)session;
return nc_server_reply_ok();
}
static void *
conn_preserve_server_thread(void *arg)
{
int ret;
NC_MSG_TYPE msgtype;
struct nc_session *session = NULL;
struct nc_pollsession *ps = NULL;
struct ln2_test_ctx *test_ctx = arg;
struct lyd_node *tree = NULL;
char *data_filled = NULL;
/* set the global rpc cb */
nc_set_global_rpc_clb(glob_rpc);
ps = nc_ps_new();
assert_non_null(ps);
/* wait for the client to be ready to connect */
pthread_barrier_wait(&test_ctx->barrier);
/* accept a session and add it to the poll session structure */
msgtype = nc_accept(NC_ACCEPT_TIMEOUT, test_ctx->ctx, &session);
assert_int_equal(msgtype, NC_MSG_HELLO);
ret = nc_ps_add_session(ps, session);
assert_int_equal(ret, 0);
/* poll until the session is fully established */
do {
ret = nc_ps_poll(ps, NC_PS_POLL_TIMEOUT, NULL);
} while (ret & NC_PSPOLL_RPC);
/* print port number into the new data */
ret = asprintf(&data_filled, data3, TEST_PORT_STR);
assert_int_not_equal(ret, -1);
/* connection established, change the server configuration */
ret = lyd_parse_data_mem(test_ctx->ctx, data_filled, LYD_XML, LYD_PARSE_ONLY, 0, &tree);
assert_int_equal(ret, 0);
/* add all implicit nodes */
ret = lyd_new_implicit_tree(tree, LYD_IMPLICIT_NO_STATE, NULL);
assert_int_equal(ret, 0);
ret = nc_server_config_setup_diff(tree);
assert_int_equal(ret, 0);
lyd_free_all(tree);
free(data_filled);
/* wait for the client */
pthread_barrier_wait(&test_ctx->barrier);
/* poll until we receive the rpc from the client */
do {
ret = nc_ps_poll(ps, NC_PS_POLL_TIMEOUT, NULL);
} while (!(ret & NC_PSPOLL_RPC));
/* wait for the client */
pthread_barrier_wait(&test_ctx->barrier);
nc_ps_clear(ps, 1, NULL);
nc_ps_free(ps);
return NULL;
}
static void
test_preserve_conn(void **state)
{
int ret, i;
pthread_t tids[2];
struct lyd_node *tree = NULL;
struct ln2_test_ctx *test_ctx = *state;
char *data_filled = NULL;
/* print port number into the diff */
ret = asprintf(&data_filled, data, TEST_PORT_STR);
assert_int_not_equal(ret, -1);
/* setup base configuration */
ret = lyd_parse_data_mem(test_ctx->ctx, data_filled, LYD_XML, LYD_PARSE_ONLY, 0, &tree);
assert_int_equal(ret, 0);
/* add all implicit nodes */
ret = lyd_new_implicit_tree(tree, LYD_IMPLICIT_NO_STATE, NULL);
assert_int_equal(ret, 0);
ret = nc_server_config_setup_diff(tree);
assert_int_equal(ret, 0);
lyd_free_all(tree);
free(data_filled);
ret = pthread_create(&tids[0], NULL, conn_preserve_client_thread, *state);
assert_int_equal(ret, 0);
ret = pthread_create(&tids[1], NULL, conn_preserve_server_thread, *state);
assert_int_equal(ret, 0);
for (i = 0; i < 2; i++) {
pthread_join(tids[i], NULL);
}
}
static void
test_transport_params_oper_get(void **state)
{
int ret;
struct lyd_node *algs = NULL;
const char *expected_algs;
struct ln2_test_ctx *test_ctx = *state;
char *buf;
/* check ssh supported algorithms */
expected_algs = "<supported-algorithms xmlns=\"urn:ietf:params:xml:ns:yang:ietf-ssh-common\">"
"<public-key-algorithms>"
"<supported-algorithm>ssh-ed25519</supported-algorithm>"
"<supported-algorithm>ecdsa-sha2-nistp521</supported-algorithm>"
"<supported-algorithm>ecdsa-sha2-nistp384</supported-algorithm>"
"<supported-algorithm>ecdsa-sha2-nistp256</supported-algorithm>"
"<supported-algorithm>sk-ssh-ed25519@openssh.com</supported-algorithm>"
"<supported-algorithm>sk-ecdsa-sha2-nistp256@openssh.com</supported-algorithm>"
"<supported-algorithm>rsa-sha2-512</supported-algorithm>"
"<supported-algorithm>rsa-sha2-256</supported-algorithm>"
"<supported-algorithm>ssh-rsa</supported-algorithm>"
"<supported-algorithm>ssh-ed25519-cert-v01@openssh.com</supported-algorithm>"
"<supported-algorithm>sk-ssh-ed25519-cert-v01@openssh.com</supported-algorithm>"
"<supported-algorithm>ecdsa-sha2-nistp521-cert-v01@openssh.com</supported-algorithm>"
"<supported-algorithm>ecdsa-sha2-nistp384-cert-v01@openssh.com</supported-algorithm>"
"<supported-algorithm>ecdsa-sha2-nistp256-cert-v01@openssh.com</supported-algorithm>"
"<supported-algorithm>sk-ecdsa-sha2-nistp256-cert-v01@openssh.com</supported-algorithm>"
"<supported-algorithm>rsa-sha2-512-cert-v01@openssh.com</supported-algorithm>"
"<supported-algorithm>rsa-sha2-256-cert-v01@openssh.com</supported-algorithm>"
"<supported-algorithm>ssh-rsa-cert-v01@openssh.com</supported-algorithm>"
"</public-key-algorithms>"
"<encryption-algorithms>"
"<supported-algorithm>chacha20-poly1305@openssh.com</supported-algorithm>"
"<supported-algorithm>aes256-gcm@openssh.com</supported-algorithm>"
"<supported-algorithm>aes128-gcm@openssh.com</supported-algorithm>"
"<supported-algorithm>aes256-ctr</supported-algorithm>"
"<supported-algorithm>aes192-ctr</supported-algorithm>"
"<supported-algorithm>aes128-ctr</supported-algorithm>"
"<supported-algorithm>aes256-cbc</supported-algorithm>"
"<supported-algorithm>aes192-cbc</supported-algorithm>"
"<supported-algorithm>aes128-cbc</supported-algorithm>"
"<supported-algorithm>blowfish-cbc</supported-algorithm>"
"<supported-algorithm>3des-cbc</supported-algorithm>"
"<supported-algorithm>none</supported-algorithm>"
"</encryption-algorithms>"
"<key-exchange-algorithms>"
"<supported-algorithm>diffie-hellman-group-exchange-sha1</supported-algorithm>"
"<supported-algorithm>curve25519-sha256</supported-algorithm>"
"<supported-algorithm>curve25519-sha256@libssh.org</supported-algorithm>"
"<supported-algorithm>sntrup761x25519-sha512</supported-algorithm>"
"<supported-algorithm>sntrup761x25519-sha512@openssh.com</supported-algorithm>"
"<supported-algorithm>ecdh-sha2-nistp256</supported-algorithm>"
"<supported-algorithm>ecdh-sha2-nistp384</supported-algorithm>"
"<supported-algorithm>ecdh-sha2-nistp521</supported-algorithm>"
"<supported-algorithm>diffie-hellman-group18-sha512</supported-algorithm>"
"<supported-algorithm>diffie-hellman-group16-sha512</supported-algorithm>"
"<supported-algorithm>diffie-hellman-group-exchange-sha256</supported-algorithm>"
"<supported-algorithm>diffie-hellman-group14-sha256</supported-algorithm>"
"<supported-algorithm>diffie-hellman-group14-sha1</supported-algorithm>"
"<supported-algorithm>diffie-hellman-group1-sha1</supported-algorithm>"
"</key-exchange-algorithms>"
"<mac-algorithms>"
"<supported-algorithm>hmac-sha2-256-etm@openssh.com</supported-algorithm>"
"<supported-algorithm>hmac-sha2-512-etm@openssh.com</supported-algorithm>"
"<supported-algorithm>hmac-sha1-etm@openssh.com</supported-algorithm>"
"<supported-algorithm>hmac-sha2-256</supported-algorithm>"
"<supported-algorithm>hmac-sha2-512</supported-algorithm>"
"<supported-algorithm>hmac-sha1</supported-algorithm>"
"<supported-algorithm>none</supported-algorithm>"
"</mac-algorithms>"
"</supported-algorithms>";
ret = nc_server_config_oper_get_supported_ssh_algs(test_ctx->ctx, &algs);
assert_int_equal(ret, 0);
ret = lyd_print_mem(&buf, algs, LYD_XML, LYD_PRINT_SHRINK);
assert_string_equal(buf, expected_algs);
free(buf);
lyd_free_all(algs);
/* for tls supported algorithms only try getting them without comparing */
ret = nc_server_config_oper_get_supported_tls_algs(test_ctx->ctx, &algs);
assert_int_equal(ret, 0);
lyd_free_all(algs);
}
static void
read_config_file(const char *path, char **mem)
{
FILE *f;
long fsize;
size_t read;
f = fopen(path, "r");
assert_non_null(f);
fseek(f, 0, SEEK_END);
fsize = ftell(f);
assert_true(fsize > 0);
fseek(f, 0, SEEK_SET);
*mem = malloc(fsize + 1);
assert_non_null(*mem);
read = fread(*mem, 1, fsize, f);
assert_int_equal(read, fsize);
(*mem)[read] = '\0';
fclose(f);
}
static void
test_config_all_nodes(void **state)
{
int ret;
struct lyd_node *tree = NULL, *dup = NULL, *n;
struct lyd_meta *meta;
struct ln2_test_ctx *test_ctx = *state;
char *mem = NULL, *mem_filled = NULL;
/* read the config file into memory */
read_config_file(TESTS_DIR "/data/config.xml", &mem);
/* print the port numbers into the config */
ret = asprintf(&mem_filled, mem, TEST_PORT_STR, TEST_PORT_2_STR, TEST_PORT_3_STR,
TEST_PORT_4_STR, TEST_PORT_5_STR, TEST_PORT_6_STR);
assert_int_not_equal(ret, -1);
/* load configuration from memory */
ret = lyd_parse_data_mem(test_ctx->ctx, mem_filled, LYD_XML, LYD_PARSE_STRICT, LYD_VALIDATE_PRESENT, &tree);
assert_int_equal(ret, 0);
/* apply the configuration */
ret = nc_server_config_setup_data(tree);
assert_int_equal(ret, 0);
/* apply it again, should succeed without changes */
ret = nc_server_config_setup_data(tree);
assert_int_equal(ret, 0);
/* duplicate the configuration */
ret = lyd_dup_single(tree, NULL, LYD_DUP_RECURSIVE, &dup);
assert_int_equal(ret, 0);
/* add the delete operation to the root */
ret = lyd_new_meta(test_ctx->ctx, dup, NULL, "yang:operation", "delete", 0, &meta);
assert_int_equal(ret, 0);
/* should delete everything without errors */
ret = nc_server_config_setup_diff(dup);
assert_int_equal(ret, 0);
/* change the meta to create, should add everything back without errors */
ret = lyd_change_meta(meta, "create");
assert_int_equal(ret, 0);
ret = nc_server_config_setup_diff(dup);
assert_int_equal(ret, 0);
/* set the operation to none */
ret = lyd_change_meta(meta, "none");
assert_int_equal(ret, 0);
/* try to delete the SSH endpoint only */
ret = lyd_find_path(dup, "/ietf-netconf-server:netconf-server/listen/endpoints/endpoint[name='ssh']", 0, &n);
assert_int_equal(ret, 0);
ret = lyd_new_meta(test_ctx->ctx, n, NULL, "yang:operation", "delete", 0, NULL);
assert_int_equal(ret, 0);
ret = nc_server_config_setup_diff(dup);
assert_int_equal(ret, 0);
lyd_free_tree(n);
/* try to delete the TLS endpoint only */
ret = lyd_find_path(dup, "/ietf-netconf-server:netconf-server/listen/endpoints/endpoint[name='tls']", 0, &n);
assert_int_equal(ret, 0);
ret = lyd_new_meta(test_ctx->ctx, n, NULL, "yang:operation", "delete", 0, NULL);
assert_int_equal(ret, 0);
ret = nc_server_config_setup_diff(dup);
assert_int_equal(ret, 0);
lyd_free_tree(n);
/* try to delete call home ssh endpoint only */
ret = lyd_find_path(dup, "/ietf-netconf-server:netconf-server/call-home/netconf-client[name='persistent']/"
"endpoints/endpoint[name='ssh']", 0, &n);
assert_int_equal(ret, 0);
ret = lyd_new_meta(test_ctx->ctx, n, NULL, "yang:operation", "delete", 0, NULL);
assert_int_equal(ret, 0);
ret = nc_server_config_setup_diff(dup);
assert_int_equal(ret, 0);
lyd_free_tree(n);
/* try to delete call home tls endpoint only */
ret = lyd_find_path(dup, "/ietf-netconf-server:netconf-server/call-home/netconf-client[name='persistent']/"
"endpoints/endpoint[name='tls']", 0, &n);
assert_int_equal(ret, 0);
ret = lyd_new_meta(test_ctx->ctx, n, NULL, "yang:operation", "delete", 0, NULL);
assert_int_equal(ret, 0);
ret = nc_server_config_setup_diff(dup);
assert_int_equal(ret, 0);
lyd_free_tree(n);
/* try to delete a persistent call home client */
ret = lyd_find_path(dup, "/ietf-netconf-server:netconf-server/call-home/netconf-client[name='persistent']", 0, &n);
assert_int_equal(ret, 0);
ret = lyd_new_meta(test_ctx->ctx, n, NULL, "yang:operation", "delete", 0, NULL);
assert_int_equal(ret, 0);
ret = nc_server_config_setup_diff(dup);
assert_int_equal(ret, 0);
lyd_free_tree(n);
/* try to delete a periodic call home client */
ret = lyd_find_path(dup, "/ietf-netconf-server:netconf-server/call-home/netconf-client[name='periodic']", 0, &n);
assert_int_equal(ret, 0);
ret = lyd_new_meta(test_ctx->ctx, n, NULL, "yang:operation", "delete", 0, NULL);
assert_int_equal(ret, 0);
ret = nc_server_config_setup_diff(dup);
assert_int_equal(ret, 0);
free(mem);
free(mem_filled);
lyd_free_all(dup);
lyd_free_all(tree);
}
static void *
unsupported_asymkey_client_thread(void *arg)
{
int ret;
struct nc_session *session = NULL;
struct ln2_test_ctx *test_ctx = arg;
/* skip all hostkey and known_hosts checks */
nc_client_ssh_set_knownhosts_mode(NC_SSH_KNOWNHOSTS_SKIP);
/* set directory where to search for modules */
ret = nc_client_set_schema_searchpath(MODULES_DIR);
assert_int_equal(ret, 0);
/* set ssh username */
ret = nc_client_ssh_set_username("user1");
assert_int_equal(ret, 0);
/* wait for the server to reach polling */
pthread_barrier_wait(&test_ctx->barrier);
/* connect, expecting fail */
session = nc_connect_ssh("127.0.0.1", TEST_PORT, NULL);
assert_null(session);
return NULL;
}
static void
test_unusupported_asymkey_format(void **state)
{
int ret;
struct lyd_node *tree = NULL;
struct ln2_test_ctx *test_ctx = *state;
const char *data, *mod;
pthread_t tids[2];
char *data_filled = NULL;
/* create a module defining libnetconf2 unsupported key formats */
mod =
"module a {yang-version 1.1; namespace urn:a; prefix a; import ietf-crypto-types {prefix ct;}"
"identity unsupported-public-key-format {base ct:public-key-format;}"
"identity unsupported-private-key-format {base ct:private-key-format;}}";
/* load the module */
ret = lys_parse_mem(test_ctx->ctx, mod, LYS_IN_YANG, NULL);
assert_int_equal(ret, 0);
/* prepare data with unsupported asymmetric key formats */
data =
"<keystore xmlns=\"urn:ietf:params:xml:ns:yang:ietf-keystore\">"
" <asymmetric-keys>"
" <asymmetric-key>"
" <name>UNSUPPORTED</name>"
" <public-key-format xmlns:a=\"urn:a\">a:unsupported-public-key-format</public-key-format>"
" <public-key>base64blob==</public-key>"
" <private-key-format xmlns:a=\"urn:a\">a:unsupported-private-key-format</private-key-format>"
" <cleartext-private-key>base64blob==</cleartext-private-key>"
" <certificates/>"
" </asymmetric-key>"
" </asymmetric-keys>"
"</keystore>";
/* parse the data */
ret = lyd_parse_data_mem(test_ctx->ctx, data, LYD_XML, LYD_PARSE_ONLY, 0, &tree);
assert_int_equal(ret, 0);
/* applying the data should succeed, unsupported formats are allowed */
ret = nc_server_config_setup_data(tree);
assert_int_equal(ret, 0);
lyd_free_all(tree);
/* use the asymmetric key in netconf-server config */
data =
"<netconf-server xmlns=\"urn:ietf:params:xml:ns:yang:ietf-netconf-server\" "
" xmlns:yang=\"urn:ietf:params:xml:ns:yang:1\" yang:operation=\"create\">"
" <listen>"
" <endpoints>"
" <endpoint>"
" <name>e1</name>"
" <ssh>"
" <tcp-server-parameters>"
" <local-bind>"
" <local-address>127.0.0.1</local-address>"
" <local-port>%s</local-port>"
" </local-bind>"
" </tcp-server-parameters>"
" <ssh-server-parameters>"
" <server-identity>"
" <host-key>"
" <name>hostkey1</name>"
" <public-key>"
" <central-keystore-reference>UNSUPPORTED</central-keystore-reference>" // use it here
" </public-key>"
" </host-key>"
" </server-identity>"
" <client-authentication>"
" <users>"
" <user>"
" <name>user1</name>"
" <none/>" // no keys or password
" </user>"
" </users>"
" </client-authentication>"
" </ssh-server-parameters>"
" </ssh>"
" </endpoint>"
" </endpoints>"
" </listen>"
"</netconf-server>\n";
/* print port number into the data */
ret = asprintf(&data_filled, data, TEST_PORT_STR);
assert_int_not_equal(ret, -1);
/* parse the data */
ret = lyd_parse_data_mem(test_ctx->ctx, data_filled, LYD_XML, LYD_PARSE_ONLY, 0, &tree);
assert_int_equal(ret, 0);
/* add all implicit nodes */
ret = lyd_new_implicit_tree(tree, LYD_IMPLICIT_NO_STATE, NULL);
assert_int_equal(ret, 0);
/* applying the data should succeed, unsupported key formats are allowed */
ret = nc_server_config_setup_diff(tree);
assert_int_equal(ret, 0);
/* start client and server threads, the client should NOT be able to connect */
ret = pthread_create(&tids[0], NULL, unsupported_asymkey_client_thread, *state);
assert_int_equal(ret, 0);
ret = pthread_create(&tids[1], NULL, ln2_glob_test_server_thread_fail, *state);
assert_int_equal(ret, 0);
for (int i = 0; i < 2; i++) {
pthread_join(tids[i], NULL);
}
free(data_filled);
lyd_free_all(tree);
}
static int
setup_f(void **state)
{
int ret;
struct lyd_node *tree = NULL;
struct ln2_test_ctx *test_ctx;
ret = ln2_glob_test_setup(&test_ctx);
assert_int_equal(ret, 0);
*state = test_ctx;
/* setup keystore and truststore */
ret = lyd_parse_data_mem(test_ctx->ctx, keystore_truststore_data, LYD_XML,
LYD_PARSE_ONLY, 0, &tree);
assert_int_equal(ret, 0);
/* add all implicit nodes */
ret = lyd_new_implicit_tree(tree, LYD_IMPLICIT_NO_STATE, NULL);
assert_int_equal(ret, 0);
ret = nc_server_config_setup_data(tree);
assert_int_equal(ret, 0);
/* set the base directory for UNIX sockets */
ret = nc_server_set_unix_socket_dir("/tmp");
assert_int_equal(ret, 0);
/* set hidden path for UNIX endpoint */
ret = nc_server_set_unix_socket_path("unix", "netconf-test-server.sock");
assert_int_equal(ret, 0);
lyd_free_all(tree);
return 0;
}
int
main(void)
{
const struct CMUnitTest tests[] = {
cmocka_unit_test_setup_teardown(test_rollback, setup_f, ln2_glob_test_teardown),
cmocka_unit_test_setup_teardown(test_preserve_conn, setup_f, ln2_glob_test_teardown),
cmocka_unit_test_setup_teardown(test_transport_params_oper_get, setup_f, ln2_glob_test_teardown),
cmocka_unit_test_setup_teardown(test_config_all_nodes, setup_f, ln2_glob_test_teardown),
cmocka_unit_test_setup_teardown(test_unusupported_asymkey_format, setup_f, ln2_glob_test_teardown),
};
/* try to get ports from the environment, otherwise use the default */
if (ln2_glob_test_get_ports(1, &TEST_PORT, &TEST_PORT_STR)) {
return 1;
}
setenv("CMOCKA_TEST_ABORT", "1", 1);
return cmocka_run_group_tests(tests, NULL, NULL);
}
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