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Diffstat (limited to 'src/ipcpd/normal/enroll.c')
-rw-r--r--src/ipcpd/normal/enroll.c382
1 files changed, 0 insertions, 382 deletions
diff --git a/src/ipcpd/normal/enroll.c b/src/ipcpd/normal/enroll.c
deleted file mode 100644
index b572f89d..00000000
--- a/src/ipcpd/normal/enroll.c
+++ /dev/null
@@ -1,382 +0,0 @@
-/*
- * Ouroboros - Copyright (C) 2016 - 2019
- *
- * Enrollment Task
- *
- * Dimitri Staessens <dimitri.staessens@ugent.be>
- * Sander Vrijders <sander.vrijders@ugent.be>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * 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, write to the Free Software
- * Foundation, Inc., http://www.fsf.org/about/contact/.
- */
-
-#if defined(__linux__) || defined(__CYGWIN__)
-#define _DEFAULT_SOURCE
-#else
-#define _POSIX_C_SOURCE 199309L
-#endif
-
-#define OUROBOROS_PREFIX "enrollment"
-
-#include <ouroboros/endian.h>
-#include <ouroboros/errno.h>
-#include <ouroboros/time_utils.h>
-#include <ouroboros/dev.h>
-#include <ouroboros/logs.h>
-#include <ouroboros/errno.h>
-#include <ouroboros/sockets.h>
-
-#include "connmgr.h"
-#include "enroll.h"
-#include "ipcp.h"
-
-#include <assert.h>
-#include <stdlib.h>
-#include <string.h>
-#include <pthread.h>
-
-#include "ipcp_config.pb-c.h"
-typedef EnrollMsg enroll_msg_t;
-
-#define ENROLL_COMP "Enrollment"
-#define ENROLL_PROTO "OEP" /* Ouroboros enrollment protocol */
-#define ENROLL_WARN_TIME_OFFSET 20
-#define ENROLL_BUF_LEN 1024
-
-enum enroll_state {
- ENROLL_NULL = 0,
- ENROLL_INIT,
- ENROLL_RUNNING
-};
-
-struct {
- struct ipcp_config conf;
- enum enroll_state state;
- pthread_t listener;
-} enroll;
-
-static int send_rcv_enroll_msg(int fd)
-{
- enroll_msg_t req = ENROLL_MSG__INIT;
- enroll_msg_t * reply;
- uint8_t buf[ENROLL_BUF_LEN];
- ssize_t len;
- ssize_t delta_t;
- struct timespec t0;
- struct timespec rtt;
-
- req.code = ENROLL_CODE__ENROLL_REQ;
-
- len = enroll_msg__get_packed_size(&req);
- if (len < 0) {
- log_dbg("Failed pack request message.");
- return -1;
- }
-
- enroll_msg__pack(&req, buf);
-
- clock_gettime(CLOCK_REALTIME, &t0);
-
- if (flow_write(fd, buf, len)) {
- log_dbg("Failed to send request message.");
- return -1;
- }
-
- len = flow_read(fd, buf, ENROLL_BUF_LEN);
- if (len < 0) {
- log_dbg("No enrollment reply received.");
- return -1;
- }
-
- log_dbg("Received enrollment info (%zd bytes).", len);
-
- reply = enroll_msg__unpack(NULL, len, buf);
- if (reply == NULL) {
- log_dbg("No enrollment response.");
- return -1;
- }
-
- if (reply->code != ENROLL_CODE__ENROLL_BOOT) {
- log_dbg("Failed to unpack enrollment response.");
- enroll_msg__free_unpacked(reply, NULL);
- return -1;
- }
-
- if (!(reply->has_t_sec && reply->has_t_nsec)) {
- log_dbg("No time in response message.");
- enroll_msg__free_unpacked(reply, NULL);
- return -1;
- }
-
- clock_gettime(CLOCK_REALTIME, &rtt);
-
- delta_t = ts_diff_ms(&t0, &rtt);
-
- rtt.tv_sec = reply->t_sec;
- rtt.tv_nsec = reply->t_nsec;
-
- if (labs(ts_diff_ms(&t0, &rtt)) - delta_t > ENROLL_WARN_TIME_OFFSET)
- log_warn("Clock offset above threshold.");
-
- strcpy(enroll.conf.layer_info.layer_name,
- reply->conf->layer_info->layer_name);
- enroll.conf.type = reply->conf->ipcp_type;
- enroll.conf.addr_size = reply->conf->addr_size;
- enroll.conf.eid_size = reply->conf->eid_size;
- enroll.conf.max_ttl = reply->conf->max_ttl;
- enroll.conf.addr_auth_type = reply->conf->addr_auth_type;
- enroll.conf.routing_type = reply->conf->routing_type;
- enroll.conf.pff_type = reply->conf->pff_type;
- enroll.conf.layer_info.dir_hash_algo
- = reply->conf->layer_info->dir_hash_algo;
-
- enroll_msg__free_unpacked(reply, NULL);
-
- return 0;
-}
-
-static ssize_t enroll_pack(uint8_t ** buf)
-{
- enroll_msg_t msg = ENROLL_MSG__INIT;
- ipcp_config_msg_t config = IPCP_CONFIG_MSG__INIT;
- layer_info_msg_t layer_info = LAYER_INFO_MSG__INIT;
- struct timespec now;
- ssize_t len;
-
- clock_gettime(CLOCK_REALTIME, &now);
-
- msg.code = ENROLL_CODE__ENROLL_BOOT;
- msg.has_t_sec = true;
- msg.t_sec = now.tv_sec;
- msg.has_t_nsec = true;
- msg.t_nsec = now.tv_nsec;
- msg.conf = &config;
-
- config.ipcp_type = enroll.conf.type;
- config.has_addr_size = true;
- config.addr_size = enroll.conf.addr_size;
- config.has_eid_size = true;
- config.eid_size = enroll.conf.eid_size;
- config.has_max_ttl = true;
- config.max_ttl = enroll.conf.max_ttl;
- config.has_addr_auth_type = true;
- config.addr_auth_type = enroll.conf.addr_auth_type;
- config.has_routing_type = true;
- config.routing_type = enroll.conf.routing_type;
- config.has_pff_type = true;
- config.pff_type = enroll.conf.pff_type;
- config.layer_info = &layer_info;
-
- layer_info.layer_name = (char *) enroll.conf.layer_info.layer_name;
- layer_info.dir_hash_algo = enroll.conf.layer_info.dir_hash_algo;
-
- len = enroll_msg__get_packed_size(&msg);
-
- *buf = malloc(len);
- if (*buf == NULL)
- return -1;
-
- enroll_msg__pack(&msg, *buf);
-
- return len;
-}
-
-static void * enroll_handle(void * o)
-{
- struct conn conn;
- uint8_t buf[ENROLL_BUF_LEN];
- uint8_t * reply;
- ssize_t len;
- enroll_msg_t * msg;
-
- (void) o;
-
- while (true) {
- if (connmgr_wait(COMPID_ENROLL, &conn)) {
- log_err("Failed to get next connection.");
- continue;
- }
-
- len = flow_read(conn.flow_info.fd, buf, ENROLL_BUF_LEN);
- if (len < 0) {
- log_err("Failed to read from flow.");
- connmgr_dealloc(COMPID_ENROLL, &conn);
- continue;
- }
-
- msg = enroll_msg__unpack(NULL, len, buf);
- if (msg == NULL) {
- log_err("Failed to unpack message.");
- connmgr_dealloc(COMPID_ENROLL, &conn);
- continue;
- }
-
- if (msg->code != ENROLL_CODE__ENROLL_REQ) {
- log_err("Wrong message type.");
- connmgr_dealloc(COMPID_ENROLL, &conn);
- enroll_msg__free_unpacked(msg, NULL);
- continue;
- }
-
- log_dbg("Enrolling a new neighbor.");
-
- enroll_msg__free_unpacked(msg, NULL);
-
- len = enroll_pack(&reply);
- if (reply == NULL) {
- log_err("Failed to pack enrollment message.");
- connmgr_dealloc(COMPID_ENROLL, &conn);
- continue;
- }
-
- log_dbg("Sending enrollment info (%zd bytes).", len);
-
- if (flow_write(conn.flow_info.fd, reply, len)) {
- log_err("Failed respond to enrollment request.");
- connmgr_dealloc(COMPID_ENROLL, &conn);
- free(reply);
- continue;
- }
-
- free(reply);
-
- len = flow_read(conn.flow_info.fd, buf, ENROLL_BUF_LEN);
- if (len < 0) {
- log_err("Failed to read from flow.");
- connmgr_dealloc(COMPID_ENROLL, &conn);
- continue;
- }
-
- msg = enroll_msg__unpack(NULL, len, buf);
- if (msg == NULL) {
- log_err("Failed to unpack message.");
- connmgr_dealloc(COMPID_ENROLL, &conn);
- continue;
- }
-
- if (msg->code != ENROLL_CODE__ENROLL_DONE || !msg->has_result) {
- log_err("Wrong message type.");
- enroll_msg__free_unpacked(msg, NULL);
- connmgr_dealloc(COMPID_ENROLL, &conn);
- continue;
- }
-
- if (msg->result == 0)
- log_dbg("Neighbor enrollment successful.");
- else
- log_dbg("Neigbor reported failed enrollment.");
-
- enroll_msg__free_unpacked(msg, NULL);
-
- connmgr_dealloc(COMPID_ENROLL, &conn);
- }
-
- return 0;
-}
-
-int enroll_boot(struct conn * conn)
-{
- log_dbg("Getting boot information.");
-
- if (send_rcv_enroll_msg(conn->flow_info.fd)) {
- log_err("Failed to enroll.");
- return -1;
- }
-
- return 0;
-}
-
-int enroll_done(struct conn * conn,
- int result)
-{
- enroll_msg_t msg = ENROLL_MSG__INIT;
- uint8_t buf[ENROLL_BUF_LEN];
- ssize_t len;
-
- msg.code = ENROLL_CODE__ENROLL_DONE;
- msg.has_result = true;
- msg.result = result;
-
- len = enroll_msg__get_packed_size(&msg);
- if (len < 0) {
- log_dbg("Failed pack request message.");
- return -1;
- }
-
- enroll_msg__pack(&msg, buf);
-
- if (flow_write(conn->flow_info.fd, buf, len)) {
- log_dbg("Failed to send acknowledgment.");
- return -1;
- }
-
- return 0;
-}
-
-void enroll_bootstrap(const struct ipcp_config * conf)
-{
- assert(conf);
-
- memcpy(&enroll.conf, conf, sizeof(enroll.conf));
-}
-
-struct ipcp_config * enroll_get_conf(void)
-{
- return &enroll.conf;
-}
-
-int enroll_init(void)
-{
- struct conn_info info;
-
- memset(&info, 0, sizeof(info));
-
- strcpy(info.comp_name, ENROLL_COMP);
- strcpy(info.protocol, ENROLL_PROTO);
- info.pref_version = 1;
- info.pref_syntax = PROTO_GPB;
- info.addr = 0;
-
- if (connmgr_comp_init(COMPID_ENROLL, &info)) {
- log_err("Failed to register with connmgr.");
- return -1;
- }
-
- enroll.state = ENROLL_INIT;
-
- return 0;
-}
-
-void enroll_fini(void)
-{
- if (enroll.state == ENROLL_RUNNING)
- pthread_join(enroll.listener, NULL);
-
- connmgr_comp_fini(COMPID_ENROLL);
-}
-
-int enroll_start(void)
-{
- if (pthread_create(&enroll.listener, NULL, enroll_handle, NULL))
- return -1;
-
- enroll.state = ENROLL_RUNNING;
-
- return 0;
-}
-
-void enroll_stop(void)
-{
- if (enroll.state == ENROLL_RUNNING)
- pthread_cancel(enroll.listener);
-}
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