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/*
* Ouroboros - Copyright (C) 2016 - 2021
*
* Enroll IPC Processes
*
* Dimitri Staessens <dimitri.staessens@ugent.be>
* Sander Vrijders <sander.vrijders@ugent.be>
*
* 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 the copyright holder 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 <stdio.h>
#include <stdlib.h>
#include <ouroboros/irm.h>
#include "irm_ops.h"
#include "irm_utils.h"
#include <string.h>
#define UNICAST "unicast"
#define BROADCAST "broadcast"
static void usage(void)
{
printf("Usage: irm ipcp enroll\n"
" name <ipcp name>\n"
" [layer <layer to enroll with>]\n"
" [dst <destination to enroll with>]\n"
" [type [TYPE], default = " UNICAST "]\n"
" [autobind]\n"
"where TYPE = {" UNICAST " " BROADCAST "}\n");
}
static int get_layer_name(const char * ipcp,
char * layer_name)
{
struct ipcp_info * ipcps;
size_t len;
size_t i;
len = irm_list_ipcps(&ipcps);
for (i = 0; i < len; i++)
if (strcmp(ipcps[i].name, ipcp) == 0) {
strcpy(layer_name, ipcps[i].layer);
free(ipcps);
return 0;
}
free(ipcps);
return -1;
}
int do_enroll_ipcp(int argc,
char ** argv)
{
char * ipcp = NULL;
char * layer = NULL;
char * dst = NULL;
struct ipcp_info * ipcps;
pid_t pid = -1;
ssize_t len = 0;
int i = 0;
bool autobind = false;
int cargs;
char * ipcp_type = UNICAST;
enum ipcp_type type = IPCP_INVALID;
while (argc > 0) {
cargs = 2;
if (matches(*argv, "name") == 0) {
ipcp = *(argv + 1);
} else if (matches(*argv, "type") == 0) {
ipcp_type = *(argv + 1);
} else if (matches(*argv, "layer") == 0) {
layer = *(argv + 1);
} else if (matches(*argv, "dst") == 0) {
dst = *(argv + 1);
} else if (matches(*argv, "autobind") == 0) {
autobind = true;
cargs = 1;
} else {
printf("\"%s\" is unknown, try \"irm "
"enroll_ipcp\".\n", *argv);
return -1;
}
argc -= cargs;
argv += cargs;
}
if ((layer == NULL && dst == NULL) || ipcp == NULL) {
usage();
return -1;
}
if (dst == NULL)
dst = layer;
if (strcmp(ipcp_type, UNICAST) == 0)
type = IPCP_UNICAST;
else if (strcmp(ipcp_type, BROADCAST) == 0)
type = IPCP_BROADCAST;
len = irm_list_ipcps(&ipcps);
for (i = 0; i < len; i++)
if (wildcard_match(ipcps[i].name, ipcp) == 0 &&
ipcps[i].type == type)
pid = ipcps[i].pid;
if (pid < 0) {
pid = irm_create_ipcp(ipcp, type);
if (pid < 0)
goto fail;
free(ipcps);
len = irm_list_ipcps(&ipcps);
}
for (i = 0; i < len; i++) {
if (ipcps[i].type != type)
continue;
if (wildcard_match(ipcps[i].name, ipcp) == 0) {
char enr_layer[LAYER_NAME_SIZE];
pid = ipcps[i].pid;
if (irm_enroll_ipcp(pid, dst)) {
printf("Failed to enroll IPCP.\n");
goto fail;
}
if (get_layer_name(ipcps[i].name, enr_layer)) {
printf("Could not get layer name.\n");
goto fail;
}
if (layer != NULL && strcmp(enr_layer, layer)) {
printf("Enrollment destination does not "
"match requested layer.\n");
goto fail;
}
if (autobind && irm_bind_process(pid, ipcp)) {
printf("Failed to bind %d to %s.\n", pid, ipcp);
goto fail;
}
if (autobind && irm_bind_process(pid, enr_layer)) {
printf("Failed to bind %d to %s.\n",
pid, enr_layer);
goto fail;
}
}
}
free(ipcps);
return 0;
fail:
free(ipcps);
return -1;
}
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