lib: Split authentication from CACEP

By removing authentication as part of CACEP, all policies
disappear. CACEP becomes a policy-free connection establishment
protocol between Application Entities.  Authentication can later be
added cleanly as a pure policy function when needed.

1 files changed, 0 insertions, 209 deletions

diff --git a/src/lib/pol/cacep_anonymous_auth.c b/src/lib/pol/cacep_anonymous_auth.c
deleted file mode 100644
index 44c7bd17..00000000
--- a/src/lib/pol/cacep_anonymous_auth.c
+++ /dev/null
@@ -1,209 +0,0 @@
-/*
- * Ouroboros - Copyright (C) 2016 - 2017
- *
- * Anonymous policy for CACEP
- *
- *    Dimitri Staessens <[email protected]>
- *    Sander Vrijders   <[email protected]>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public License
- * version 2.1 as published by the Free Software Foundation.
- *
- * This library 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301 USA
- */
-
-#include <ouroboros/config.h>
-#include <ouroboros/cacep.h>
-#include <ouroboros/time_utils.h>
-#include <ouroboros/dev.h>
-#include <ouroboros/errno.h>
-
-#include "cacep_proto.h"
-#include "cacep_anonymous_auth.h"
-
-#include <stdlib.h>
-#include <math.h>
-#include <string.h>
-#include <stdio.h>
-
-#include "cacep_anonymous_auth.pb-c.h"
-typedef CacepAnonymousAuthMsg cacep_anonymous_auth_msg_t;
-typedef CacepProtoMsg cacep_proto_msg_t;
-
-#define BUF_SIZE 2048
-#define NAME_LEN 8
-
-/* this policy generates a hex string */
-static struct conn_info * anonymous_info(void)
-{
-        struct conn_info * info;
-        struct timespec t;
-
-        info = malloc(sizeof(*info));
-        if (info == NULL)
-                return NULL;
-
-        conn_info_init(info);
-
-        info->name = malloc(NAME_LEN + 1);
-        if (info->name == NULL) {
-                free(info);
-                return NULL;
-        }
-
-        clock_gettime(CLOCK_REALTIME, &t);
-        srand(t.tv_nsec);
-
-        sprintf(info->name, "%8x",
-                (uint32_t)((rand() % RAND_MAX) & 0xFFFFFFFF));
-
-        info->addr = 0;
-
-        return info;
-}
-
-static struct conn_info * read_msg(int fd)
-{
-        struct conn_info *           tmp;
-        uint8_t                      buf[BUF_SIZE];
-        cacep_anonymous_auth_msg_t * msg;
-        ssize_t                      len;
-
-        len = flow_read(fd, buf, BUF_SIZE);
-        if (len < 0)
-                return NULL;
-
-        msg = cacep_anonymous_auth_msg__unpack(NULL, len, buf);
-        if (msg == NULL)
-                return NULL;
-
-        tmp = anonymous_info();
-        if (tmp == NULL) {
-                cacep_anonymous_auth_msg__free_unpacked(msg, NULL);
-                return NULL;
-        }
-
-        tmp->proto.protocol = strdup(msg->proto->protocol);
-        if (tmp->proto.protocol == NULL) {
-                free(tmp);
-                cacep_anonymous_auth_msg__free_unpacked(msg, NULL);
-                return NULL;
-        }
-
-        tmp->proto.pref_version = msg->proto->pref_version;
-        tmp->proto.pref_syntax  = code_to_syntax(msg->proto->pref_syntax);
-        if (tmp->proto.pref_syntax < 0) {
-                free(tmp->proto.protocol);
-                free(tmp);
-                cacep_anonymous_auth_msg__free_unpacked(msg, NULL);
-                return NULL;
-        }
-
-        cacep_anonymous_auth_msg__free_unpacked(msg, NULL);
-
-        return tmp;
-}
-
-static int send_msg(int                      fd,
-                    const struct conn_info * info)
-{
-        cacep_anonymous_auth_msg_t msg  = CACEP_ANONYMOUS_AUTH_MSG__INIT;
-        cacep_proto_msg_t          cmsg = CACEP_PROTO_MSG__INIT;
-        int                        ret  = 0;
-        uint8_t *                  data = NULL;
-        size_t                     len  = 0;
-
-        cmsg.protocol     = info->proto.protocol;
-        cmsg.pref_version = info->proto.pref_version;
-        cmsg.pref_syntax  = syntax_to_code(info->proto.pref_syntax);
-        if (cmsg.pref_syntax < 0)
-                return -1;
-
-        msg.proto = &cmsg;
-
-        len = cacep_anonymous_auth_msg__get_packed_size(&msg);
-        if (len == 0)
-                return -1;
-
-        data = malloc(len);
-        if (data == NULL)
-                return -ENOMEM;
-
-        cacep_anonymous_auth_msg__pack(&msg, data);
-
-        if (flow_write(fd, data, len) < 0)
-                ret = -1;
-
-        free(data);
-
-        return ret;
-}
-
-struct conn_info * cacep_anonymous_auth(int                      fd,
-                                        const struct conn_info * info,
-                                        const void *             auth)
-{
-        struct conn_info * tmp;
-
-        assert(info);
-
-        (void) auth;
-
-        if (send_msg(fd, info))
-                return NULL;
-
-        tmp = read_msg(fd);
-        if (tmp == NULL)
-                return NULL;
-
-        if (strcmp(info->proto.protocol, tmp->proto.protocol) ||
-            info->proto.pref_version != tmp->proto.pref_version ||
-            info->proto.pref_syntax != tmp->proto.pref_syntax) {
-                conn_info_fini(tmp);
-                free(tmp);
-                return NULL;
-        }
-
-        return tmp;
-}
-
-
-struct conn_info * cacep_anonymous_auth_wait(int                      fd,
-                                             const struct conn_info * info,
-                                             const void *             auth)
-{
-        struct conn_info * tmp;
-
-        assert(info);
-
-        (void) auth;
-
-        tmp = read_msg(fd);
-        if (tmp == NULL)
-                return NULL;
-
-        if (send_msg(fd, info)) {
-                conn_info_fini(tmp);
-                free(tmp);
-                return NULL;
-        }
-
-        if (strcmp(info->proto.protocol, tmp->proto.protocol) ||
-            info->proto.pref_version != tmp->proto.pref_version ||
-            info->proto.pref_syntax != tmp->proto.pref_syntax) {
-                conn_info_fini(tmp);
-                free(tmp);
-                return NULL;
-        }
-
-        return tmp;
-}