/*
* Check if interface support the right address types...
*/
int
iw_check_addr_type(int skfd,
char * ifname)
{
/* Check the interface address type */
if(iw_check_if_addr_type(skfd, ifname) < 0)
return(-1);
/* Check the interface address type */
if(iw_check_mac_addr_type(skfd, ifname) < 0)
return(-1);
return(0);
}
/*
* Input an address and convert to binary.
*/
int
iw_in_addr(int skfd,
const char * ifname,
char * bufp,
struct sockaddr *sap)
{
/* Check if it is a hardware or IP address */
if(index(bufp, ':') == NULL)
{
struct sockaddr if_address;
struct arpreq arp_query;
/* Check if we have valid interface address type */
if(iw_check_if_addr_type(skfd, ifname) < 0)
{
fprintf(stderr, "%-8.16s Interface doesn't support IP addresses\n", ifname);
return(-1);
}
/* Read interface address */
if(iw_in_inet(bufp, &if_address) < 0)
{
fprintf(stderr, "Invalid interface address %s\n", bufp);
return(-1);
}
/* Translate IP addresses to MAC addresses */
memcpy((char *) &(arp_query.arp_pa),
(char *) &if_address,
sizeof(struct sockaddr));
arp_query.arp_ha.sa_family = 0;
arp_query.arp_flags = 0;
/* The following restrict the search to the interface only */
/* For old kernels which complain, just comment it... */
strncpy(arp_query.arp_dev, ifname, IFNAMSIZ);
if((ioctl(skfd, SIOCGARP, &arp_query) < 0) ||
!(arp_query.arp_flags & ATF_COM))
{
fprintf(stderr, "Arp failed for %s on %s... (%d)\nTry to ping the address before setting it.\n",
bufp, ifname, errno);
return(-1);
}
/* Store new MAC address */
memcpy((char *) sap,
(char *) &(arp_query.arp_ha),
sizeof(struct sockaddr));
#ifdef DEBUG
{
char buf[20];
printf("IP Address %s => Hw Address = %s\n",
bufp, iw_saether_ntop(sap, buf));
}
#endif
}
else /* If it's an hardware address */
{
/* Check if we have valid mac address type */
if(iw_check_mac_addr_type(skfd, ifname) < 0)
{
fprintf(stderr, "%-8.16s Interface doesn't support MAC addresses\n", ifname);
return(-1);
}
/* Get the hardware address */
if(iw_saether_aton(bufp, sap) == 0)
{
fprintf(stderr, "Invalid hardware address %s\n", bufp);
return(-1);
}
}
#ifdef DEBUG
{
char buf[20];
printf("Hw Address = %s\n", iw_saether_ntop(sap, buf));
}
#endif
return(0);
}
/*
* Set list of addresses specified on command line in the driver.
*/
static int
set_spy_info(int skfd, /* The socket */
char * ifname, /* Dev name */
char * args[], /* Command line args */
int count) /* Args count */
{
struct iwreq wrq;
int i;
int nbr; /* Number of valid addresses */
struct sockaddr hw_address[IW_MAX_SPY];
/* Read command line */
i = 0; /* first arg to read */
nbr = 0; /* Number of args read so far */
/* "off" : disable functionality (set 0 addresses) */
if(!strcmp(args[0], "off"))
i = 1; /* skip the "off" */
else
{
/* "+" : add all addresses already in the driver */
if(!strcmp(args[0], "+"))
{
char buffer[(sizeof(struct iw_quality) +
sizeof(struct sockaddr)) * IW_MAX_SPY];
/* Check if we have valid mac address type */
if(iw_check_mac_addr_type(skfd, ifname) < 0)
{
fprintf(stderr, "%-8.16s Interface doesn't support MAC addresses\n", ifname);
return(-1);
}
wrq.u.data.pointer = (caddr_t) buffer;
wrq.u.data.length = IW_MAX_SPY;
wrq.u.data.flags = 0;
if(iw_get_ext(skfd, ifname, SIOCGIWSPY, &wrq) < 0)
{
fprintf(stderr, "Interface doesn't accept reading addresses...\n");
fprintf(stderr, "SIOCGIWSPY: %s\n", strerror(errno));
return(-1);
}
/* Copy old addresses */
nbr = wrq.u.data.length;
memcpy(hw_address, buffer, nbr * sizeof(struct sockaddr));
i = 1; /* skip the "+" */
}
/* Read other args on command line */
while((i < count) && (nbr < IW_MAX_SPY))
{
/* Get the address and check if the interface supports it */
if(iw_in_addr(skfd, ifname, args[i++], &(hw_address[nbr])) < 0)
continue;
nbr++;
}
/* Check the number of addresses */
if(nbr == 0)
{
fprintf(stderr, "No valid addresses found : exiting...\n");
return(-1);
}
}
/* Check if there is some remaining arguments */
if(i < count)
{
fprintf(stderr, "Got only the first %d arguments, remaining discarded\n", i);
}
/* Time to do send addresses to the driver */
wrq.u.data.pointer = (caddr_t) hw_address;
wrq.u.data.length = nbr;
wrq.u.data.flags = 0;
if(iw_set_ext(skfd, ifname, SIOCSIWSPY, &wrq) < 0)
{
fprintf(stderr, "Interface doesn't accept addresses...\n");
fprintf(stderr, "SIOCSIWSPY: %s\n", strerror(errno));
return(-1);
}
return(0);
}
/*
* Display the spy list of addresses and the associated stats
*/
static int
print_spy_info(int skfd,
char * ifname,
char * args[],
int count)
{
struct iwreq wrq;
char buffer[(sizeof(struct iw_quality) +
sizeof(struct sockaddr)) * IW_MAX_SPY];
char temp[128];
struct sockaddr * hwa;
struct iw_quality * qual;
iwrange range;
int has_range = 0;
int n;
int i;
/* Avoid "Unused parameter" warning */
args = args; count = count;
/* Collect stats */
wrq.u.data.pointer = (caddr_t) buffer;
wrq.u.data.length = IW_MAX_SPY;
wrq.u.data.flags = 0;
if(iw_get_ext(skfd, ifname, SIOCGIWSPY, &wrq) < 0)
{
fprintf(stderr, "%-8.16s Interface doesn't support wireless statistic collection\n\n", ifname);
return(-1);
}
/* Number of addresses */
n = wrq.u.data.length;
/* Check if we have valid mac address type */
if(iw_check_mac_addr_type(skfd, ifname) < 0)
{
fprintf(stderr, "%-8.16s Interface doesn't support MAC addresses\n\n", ifname);
return(-2);
}
/* Get range info if we can */
if(iw_get_range_info(skfd, ifname, &(range)) >= 0)
has_range = 1;
/* Display it */
if(n == 0)
printf("%-8.16s No statistics to collect\n", ifname);
else
printf("%-8.16s Statistics collected:\n", ifname);
/* The two lists */
hwa = (struct sockaddr *) buffer;
qual = (struct iw_quality *) (buffer + (sizeof(struct sockaddr) * n));
for(i = 0; i < n; i++)
{
/* Print stats for each address */
printf(" %s : ", iw_saether_ntop(&hwa[i], temp));
iw_print_stats(temp, sizeof(temp), &qual[i], &range, has_range);
printf("%s\n", temp);
}
if((n > 0) && (has_range) && (range.we_version_compiled > 11))
{
iwstats stats;
/* Get /proc/net/wireless */
if(iw_get_stats(skfd, ifname, &stats, &range, has_range) >= 0)
{
iw_print_stats(temp, sizeof(temp), &stats.qual, &range, has_range);
printf(" Link/Cell/AP : %s\n", temp);
/* Display the static data */
iw_print_stats(temp, sizeof(temp),
&range.avg_qual, &range, has_range);
printf(" Typical/Reference : %s\n", temp);
}
}
printf("\n");
return(0);
}
/*
* Display the list of ap addresses and the associated stats
* Exacly the same as the spy list, only with different IOCTL and messages
*/
static int
print_ap_info(int skfd,
char * ifname,
char * args[], /* Command line args */
int count) /* Args count */
{
struct iwreq wrq;
char buffer[(sizeof(struct iw_quality) +
sizeof(struct sockaddr)) * IW_MAX_AP];
char temp[128];
struct sockaddr * hwa;
struct iw_quality * qual;
iwrange range;
int has_range = 0;
int has_qual = 0;
int n;
int i;
/* Avoid "Unused parameter" warning */
args = args; count = count;
/* Collect stats */
wrq.u.data.pointer = (caddr_t) buffer;
wrq.u.data.length = IW_MAX_AP;
wrq.u.data.flags = 0;
if(iw_get_ext(skfd, ifname, SIOCGIWAPLIST, &wrq) < 0)
{
fprintf(stderr, "%-8.16s Interface doesn't have a list of Peers/Access-Points\n\n", ifname);
return(-1);
}
/* Number of addresses */
n = wrq.u.data.length;
has_qual = wrq.u.data.flags;
/* The two lists */
hwa = (struct sockaddr *) buffer;
qual = (struct iw_quality *) (buffer + (sizeof(struct sockaddr) * n));
/* Check if we have valid mac address type */
if(iw_check_mac_addr_type(skfd, ifname) < 0)
{
fprintf(stderr, "%-8.16s Interface doesn't support MAC addresses\n\n", ifname);
return(-2);
}
/* Get range info if we can */
if(iw_get_range_info(skfd, ifname, &(range)) >= 0)
has_range = 1;
/* Display it */
if(n == 0)
printf("%-8.16s No Peers/Access-Point in range\n", ifname);
else
printf("%-8.16s Peers/Access-Points in range:\n", ifname);
for(i = 0; i < n; i++)
{
if(has_qual)
{
/* Print stats for this address */
printf(" %s : ", iw_saether_ntop(&hwa[i], temp));
iw_print_stats(temp, sizeof(buffer), &qual[i], &range, has_range);
printf("%s\n", temp);
}
else
/* Only print the address */
printf(" %s\n", iw_saether_ntop(&hwa[i], temp));
}
printf("\n");
return(0);
}
