92 lines
2.6 KiB
C
92 lines
2.6 KiB
C
|
/*
|
||
|
|
* pibs - Passive Identification of BackScatter
|
||
|
|
*
|
||
|
|
* Copyright (C) 2019 Gerard Wagener
|
||
|
|
* Copyright (C) 2019 CIRCL Computer Incident Response Center Luxembourg
|
||
|
|
* (SMILE gie).
|
||
|
|
*
|
||
|
|
* This program is free software: you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU Affero General Public License as published by
|
||
|
|
* the Free Software Foundation, either version 3 of the License, or
|
||
|
|
* (at your option) any later version.
|
||
|
|
*
|
||
|
|
* 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 Affero General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU Affero General Public License
|
||
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
*/
|
||
|
|
#include "pibs.h"
|
||
|
|
|
||
|
|
//FIXME not generic enough if more segments are needed
|
||
|
|
int load_shmid_file(pibs_t* pibs)
|
||
|
|
{
|
||
|
|
FILE* fp;
|
||
|
|
if (pibs->shmid_file[0]) {
|
||
|
|
fp = fopen(pibs->shmid_file,"r");
|
||
|
|
if (fp) {
|
||
|
|
//FIXME check file
|
||
|
|
fscanf(fp, "%d", &pibs->shmid);
|
||
|
|
return pibs->shmid;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
pibs->errno_pibs = ERR_NO_SHMID_FILE;
|
||
|
|
}
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
int pibs_shmat(pibs_t* pibs)
|
||
|
|
{
|
||
|
|
/* FIXME init function needs to break up in two functions. One that
|
||
|
|
* initializes internal pibs structures as cli options etc
|
||
|
|
* a second one for describing the data itself, size of bin_table
|
||
|
|
* number of items etc.
|
||
|
|
*/
|
||
|
|
if (pibs->data) {
|
||
|
|
free(pibs->data);
|
||
|
|
pibs->data = NULL;
|
||
|
|
}
|
||
|
|
if (pibs->data) {
|
||
|
|
pibs->errno_pibs = ERR_ATTACH_NOT_EMPTY;
|
||
|
|
printf("TEST Data is not null\n");
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
if (!pibs->shmid_file[0]) {
|
||
|
|
pibs->errno_pibs = ERR_NO_SHMID_FILE;
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
if (load_shmid_file(pibs) > 0) {
|
||
|
|
pibs->data = shmat(pibs->shmid, NULL, SHM_RND);
|
||
|
|
if ( (int) pibs->data == -1) {
|
||
|
|
pibs->errno_copy = errno;
|
||
|
|
} else {
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// Something did not work
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
int pibs_shmget(pibs_t* pibs)
|
||
|
|
{
|
||
|
|
FILE* fp;
|
||
|
|
pibs->shmid = shmget(IPC_PRIVATE, pibs->data_size, IPC_CREAT | 0600);
|
||
|
|
if (pibs->shmid < 0) {
|
||
|
|
pibs->errno_copy = errno;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (pibs->shmid_file[0]){
|
||
|
|
fp = fopen(pibs->shmid_file, "w");
|
||
|
|
if (fp) {
|
||
|
|
fprintf(fp,"%d",pibs->shmid);
|
||
|
|
fclose(fp);
|
||
|
|
}
|
||
|
|
//TODO error handling
|
||
|
|
}
|
||
|
|
//TODO attach to it and bzero it
|
||
|
|
//setup the tables
|
||
|
|
return pibs->shmid;
|
||
|
|
}
|
||
|
|
|