monitor.c File Reference

#include <sys/types.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <sys/time.h>
#include <netinet/ip_icmp.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <asm/types.h>
#include <stdio.h>
#include <stddef.h>
#include <errno.h>
#include <fcntl.h>
#include <ctype.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <syslog.h>
#include <assert.h>
#include <features.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include "owntypes.h"
#include <linux/filter.h>
#include "mn.h"
#include "monitor.h"
#include "debug.h"
#include "util.h"
#include "mn_agentadv.h"
#include "mn_handler.h"
#include "list.h"
#include "dyn_wireless.h"
#include "dyn_iwspy_rec.h"

Include dependency graph for monitor.c:

Go to the source code of this file.

Defines

#define DEBUG_FLAG   'm'
#define REC_DUMP_TYPE   4
#define MAX_QUAL   92

Functions

int MONITOR_unregister_module (void)
void MONITOR_register_module (void)
void monitor_poll_ap_addresses (struct mn_data *mn)

Variables

monitor_global_data mon_conf
 GLOBAL VARIABLES.
monitor_interface mon_devs [MAX_INTERFACES]
int mon_rec_qual_initialized
monitor_conf_vars monitor_conf []
 STRUCTURES.

Define Documentation

#define DEBUG_FLAG   'm'

Definition at line 127 of file monitor.c.

#define MAX_QUAL   92

#define REC_DUMP_TYPE   4

Definition at line 128 of file monitor.c.

Referenced by MONITOR_unregister_module().

Function Documentation

void monitor_poll_ap_addresses ( struct mn_data *  mn  ) 

Definition at line 1360 of file monitor.c.

References monitor_interface::ap_hwaddr, DEBUG(), interface_data::device, dyn_wireless_get_ap_address(), mn_data::iface, mn, mon_devs, interface_data::s, and sock.

01361 {
01362         int i, j;
01363         char new_addr[ETH_ALEN];
01364 
01365         DEBUG(DEBUG_FLAG, "monitor_poll_ap_addresses()\n");
01366         for (i = 0; i < MAX_INTERFACES; i++) {
01367                 if (!mon_devs[i].in_use || mon_devs[i].sock < 0)
01368                         continue;
01369 
01370                 if (dyn_wireless_get_ap_address(mon_devs[i].sock,
01371                                                 mon_devs[i].ifname,
01372                                                 new_addr) < 0) {
01373                         DEBUG(DEBUG_FLAG, "monitor_poll_ap_addresses: get AP "
01374                               "hw addr failed\n");
01375                         continue;
01376                 }
01377 
01378                 if (memcmp(new_addr, mon_devs[i].ap_hwaddr, ETH_ALEN) != 0) {
01379                         DEBUG(DEBUG_FLAG, "Monitor: AP hw addr changed "
01380                               "(iface=%s): %s => ",
01381                               mon_devs[i].ifname,
01382                               ether_hwtoa((unsigned char *)
01383                                           mon_devs[i].ap_hwaddr));
01384                         DEBUG(DEBUG_FLAG, "%s\n",
01385                               ether_hwtoa((unsigned char *) new_addr));
01386                         /* send agentsol to this interface */
01387                         for (j = 0; j < MAX_INTERFACES; j++) {
01388                                 if (strcmp(mon_devs[i].ifname,
01389                                            mn->iface[j].device) != 0 ||
01390                                     mn->iface[j].s < 0)
01391                                         continue;
01392 
01393                                 send_agent_solicitation(mn->iface[j].s);
01394                         }
01395                         memcpy(mon_devs[i].ap_hwaddr, new_addr, ETH_ALEN);
01396                 }
01397         }
01398 }

Here is the call graph for this function:

void MONITOR_register_module ( void   ) 

Definition at line 1331 of file monitor.c.

References monitor_global_data::average_length, monitor_global_data::current_adv, monitor_global_data::current_fa, DEFAULT_AVG_LEN, monitor_global_data::default_ch, DEFAULT_DEV_PRIO_PERCENT, DEFAULT_EARLY_EXPIRE_TIME, DEFAULT_MIN_BALANCE, DEFAULT_THRESHOLD, DEFAULT_WORST_MAX_TIME, DEFAULT_WORST_MIN_TIME, monitor_global_data::dev_priority_percentage, monitor_global_data::expiretime, handler_register(), INTERFACE_DOWN, INTERFACE_INIT, monitor_global_data::interfaces, monitor_global_data::iwspy_supported, monitor_global_data::min_balance, mon_conf, mon_devs, mon_rec_qual_initialized, monitor_global_data::old_fa_factor, OLD_FA_FACTOR, monitor_global_data::rec_qual, monitor_global_data::reg_send_timer, monitor_global_data::SQ_cache, monitor_global_data::threshold, monitor_global_data::worst_max_time, and monitor_global_data::worst_min_time.

Referenced by mn_init().

01332 {
01333         /* initialize state and variables */
01334         memset(&mon_conf, 0, sizeof(struct monitor_global_data));
01335         mon_conf.current_fa = -1;    /* not connected yet */
01336         mon_conf.current_adv = NULL;
01337         mon_conf.reg_send_timer = NULL;
01338         mon_conf.interfaces = 0;
01339         mon_conf.iwspy_supported = 0;
01340         mon_conf.threshold = DEFAULT_THRESHOLD;
01341         mon_conf.default_ch = -1;
01342         mon_conf.old_fa_factor = OLD_FA_FACTOR;
01343         mon_conf.expiretime = DEFAULT_EARLY_EXPIRE_TIME;
01344         mon_conf.min_balance = DEFAULT_MIN_BALANCE;
01345         mon_conf.worst_min_time = DEFAULT_WORST_MIN_TIME;
01346         mon_conf.worst_max_time = DEFAULT_WORST_MAX_TIME;
01347         mon_conf.dev_priority_percentage = DEFAULT_DEV_PRIO_PERCENT;
01348         mon_conf.average_length = DEFAULT_AVG_LEN;
01349         mon_conf.rec_qual = 0;
01350         mon_conf.SQ_cache = 0;
01351         mon_rec_qual_initialized = 0;
01352         memset(mon_devs, 0, sizeof(mon_devs));
01353 
01354         /* register event_INTERFACE handlers */
01355         handler_register(INTERFACE_INIT, monitor_interface_up);
01356         handler_register(INTERFACE_DOWN, monitor_interface_down);
01357 }

Here is the call graph for this function:

int MONITOR_unregister_module ( void   ) 

Definition at line 1303 of file monitor.c.

References dyn_wireless_iwspy_set(), mon_conf, mon_devs, mon_rec_qual_initialized, rec_clean_up(), rec_dump(), REC_DUMP_TYPE, monitor_global_data::rec_qual, sock, monitor_interface::sock, and monitor_global_data::SQ_cache.

Referenced by clean_up().

01304 {
01305         int i;
01306 
01307         for (i = 0; i < MAX_INTERFACES; i++) {
01308                 if (!mon_devs[i].in_use)
01309                         continue;
01310                 if (mon_devs[i].iwspy_support && !mon_conf.SQ_cache)
01311                         dyn_wireless_iwspy_set(mon_devs[i].sock, 
01312                                                mon_devs[i].ifname, NULL, 0);
01313 
01314                 if (mon_devs[i].sock >= 0) {
01315                         close(mon_devs[i].sock);
01316                         mon_devs[i].sock = -1;
01317                 }
01318         }
01319 
01320         if (mon_rec_qual_initialized) {
01321                 if (mon_conf.rec_qual)
01322                         rec_dump(REC_DUMP_TYPE, -1);
01323                 rec_clean_up();
01324                 mon_rec_qual_initialized = 0;
01325         }
01326 
01327         return 0;
01328 }

Here is the call graph for this function:

Variable Documentation

struct monitor_global_data mon_conf

GLOBAL VARIABLES.

Definition at line 144 of file monitor.c.

Referenced by drop_worst(), monitor_get_dev(), MONITOR_register_module(), and MONITOR_unregister_module().

struct monitor_interface mon_devs[MAX_INTERFACES]

Definition at line 145 of file monitor.c.

Referenced by monitor_api_get_ch(), monitor_api_set_ch(), monitor_get_dev(), monitor_poll_ap_addresses(), MONITOR_register_module(), MONITOR_unregister_module(), and print_entries().

int mon_rec_qual_initialized

Definition at line 146 of file monitor.c.

Referenced by MONITOR_register_module(), and MONITOR_unregister_module().

struct monitor_conf_vars monitor_conf[]

Initial value:

 {
        {"Threshold (0-100)      ", 1, &mon_conf.threshold,      0, 100}, 
        {"Min-balance (0-100)    ", 1, &mon_conf.min_balance,    0, 100},
        {"Expirepercent (1-300)  ", 1, &mon_conf.expiretime,     1, 300},
        {"Old-FA-factor (0-100)  ", 1, &mon_conf.old_fa_factor,  0, 100},
        {"Worst-min-time (0- )   ", 8, &mon_conf.worst_min_time, 0,  -1},
        {"Worst-max-time (0- )   ", 8, &mon_conf.worst_max_time, 0,  -1},
        {"Average-length (1-10)  ", 1, &mon_conf.average_length, 1,  10},
        {"Default-channel (1-14) ", 1, &mon_conf.default_ch,     1,  14},
        {"Record-quality (0, 1)  ", 1, &mon_conf.rec_qual,       0,   1},
        {"SQ-cache (0, 1)        ", 1, &mon_conf.SQ_cache,       0,   1},
        {"", 0, NULL, 0, 0}
}
STRUCTURES.

Definition at line 155 of file monitor.c.

Generated on Tue Jan 15 08:50:53 2008 for Virtual foreign agent generator version 0.1 by  doxygen 1.5.1