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Made all settings customisable through a config file.

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This commit is contained in:
Julien Dessaux 2019-03-14 23:34:55 +01:00
parent 5002e40485
commit 1b9a3e8c4b
7 changed files with 159 additions and 26 deletions
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86
common/config.c Normal file
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@ -0,0 +1,86 @@
#include <libconfig.h>
#include <stdlib.h>
#include "config.h"
config_t * config = NULL;
char // returns 0 if ok, greater than 0 otherwise
config_load(void)
{
config = malloc(sizeof(config_t));
config_init(config);
config_set_tab_width(config, 4);
if (config_read_file(config, CONFIG_PATH) != CONFIG_TRUE) {
switch(config_error_type(config)) {
case CONFIG_ERR_NONE:
fprintf(stderr, "Configuration read error with none type reported... This shouldn't happen!\n");
break;
case CONFIG_ERR_FILE_IO:
fprintf(stderr, "Configuration I/O error, the most common cause is a file not found at %s\n", CONFIG_PATH);
break;
case CONFIG_ERR_PARSE:
fprintf(stderr, "Configuration parse error\n");
break;
}
fprintf(stderr, "Configuration read error occured at %s:%d %s\n", config_error_file(config), config_error_line(config), config_error_text(config));
return 1;
}
return 0;
}
int config_get_port(void)
{
int port;
if (config_lookup_int(config, "port", &port) != CONFIG_TRUE) {
return DEFAULT_PORT;
}
return port;
}
const char * config_get_key_dsa(void)
{
const char * key;
if (config_lookup_string(config, "keys.dsa", &key) != CONFIG_TRUE) {
return DEFAULT_DSAKEY_PATH;
}
return key;
}
const char * config_get_key_rsa(void)
{
const char * key;
if (config_lookup_string(config, "keys.rsa", &key) != CONFIG_TRUE) {
return DEFAULT_RSAKEY_PATH;
}
return key;
}
const char * config_get_key_ecdsa(void)
{
const char * key;
if (config_lookup_string(config, "keys.ecdsa", &key) != CONFIG_TRUE) {
return DEFAULT_ECDSAKEY_PATH;
}
return key;
}
#ifdef SESSION_RECORDING
const char * config_get_session_recording_path(void)
{
const char * key;
if (config_lookup_string(config, "session_recording.path", &key) != CONFIG_TRUE) {
return DEFAULT_SESSION_RECORDING_PATH;
}
return key;
}
#endif
void config_clean(void)
{
if (config != NULL) {
config_destroy(config);
free(config);
config = NULL;
}
}

28
common/config.h.in
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@ -1,21 +1,35 @@
#ifndef COMMON_CONFIG_H_
#define COMMON_CONFIG_H_
#define LISTEN_PORT 2222
#define CONFIG_PATH "@CMAKE_INSTALL_PREFIX@/etc/bastion/bastion.conf"
#define MAX_HOSTNAME_LENGTH 64
#define MAX_USERNAME_LENGTH 64
#define DSAKEY_PATH "@CMAKE_INSTALL_PREFIX@/etc/ssh_host_dsa_key"
#define RSAKEY_PATH "@CMAKE_INSTALL_PREFIX@/etc/ssh_host_rsa_key"
#define ECDSAKEY_PATH "@CMAKE_INSTALL_PREFIX@/etc/ssh_host_ecdsa_key"
#define DEFAULT_PORT 2222
#define DEFAULT_DSAKEY_PATH "@CMAKE_INSTALL_PREFIX@/etc/bastion/ssh_host_dsa_key"
#define DEFAULT_RSAKEY_PATH "@CMAKE_INSTALL_PREFIX@/etc/bastion/ssh_host_rsa_key"
#define DEFAULT_ECDSAKEY_PATH "@CMAKE_INSTALL_PREFIX@/etc/bastion/ssh_host_ecdsa_key"
#define MYSQL_HOST "localhost"
#define MYSQL_USER "sshportal"
#define MYSQL_PASS "graou"
#define MYSQL_DB "sshportal"
#define LOG_FILENAME_FORMAT "@CMAKE_INSTALL_PREFIX@/var/log/$d/$h/$u/$i.gz" // $d : date in iso format, $h : hostname, $u : username : $i session id
#define LOG_FILENAME_MAX_LEN 255
#define LOG_DIRECTORY_MODE S_IRUSR | S_IWUSR | S_IXUSR
#ifdef SESSION_RECORDING
#define DEFAULT_SESSION_RECORDING_PATH "@CMAKE_INSTALL_PREFIX@/var/log/bastion/$d/$h/$u/$i.gz"
#define SESSION_RECORDING_FILENAME_MAX_LEN 255
#define SESSION_RECORDING_DIRECTORY_MODE S_IRUSR | S_IWUSR | S_IXUSR
#endif
char config_load(void);
int config_get_port(void);
const char * config_get_key_dsa(void);
const char * config_get_key_rsa(void);
const char * config_get_key_ecdsa(void);
#ifdef SESSION_RECORDING
const char * config_get_session_recording_path(void);
#endif
void config_clean(void);
#endif