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iwlist.c
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iwlist.c
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/*
* Wireless Tools
*
* Jean II - HPLB '99 - HPL 99->07
*
* This tool can access various piece of information on the card
* not part of iwconfig...
* You need to link this code against "iwlist.c" and "-lm".
*
* This file is released under the GPL license.
* Copyright (c) 1997-2007 Jean Tourrilhes <jt@hpl.hp.com>
*/
#include "iwlib-private.h" /* Private header */
#include <sys/time.h>
/****************************** TYPES ******************************/
/*
* Scan state and meta-information, used to decode events...
*/
typedef struct iwscan_state
{
/* State */
int ap_num; /* Access Point number 1->N */
int val_index; /* Value in table 0->(N-1) */
} iwscan_state;
/*
* Bit to name mapping
*/
typedef struct iwmask_name
{
unsigned int mask; /* bit mask for the value */
const char * name; /* human readable name for the value */
} iwmask_name;
/*
* Types of authentication parameters
*/
typedef struct iw_auth_descr
{
int value; /* Type of auth value */
const char * label; /* User readable version */
const struct iwmask_name * names; /* Names for this value */
const int num_names; /* Number of names */
} iw_auth_descr;
/**************************** CONSTANTS ****************************/
#define IW_SCAN_HACK 0x8000
#define IW_EXTKEY_SIZE (sizeof(struct iw_encode_ext) + IW_ENCODING_TOKEN_MAX)
/* ------------------------ WPA CAPA NAMES ------------------------ */
/*
* This is the user readable name of a bunch of WPA constants in wireless.h
* Maybe this should go in iwlib.c ?
*/
#ifndef WE_ESSENTIAL
#define IW_ARRAY_LEN(x) (sizeof(x)/sizeof((x)[0]))
//static const struct iwmask_name iw_enc_mode_name[] = {
// { IW_ENCODE_RESTRICTED, "restricted" },
// { IW_ENCODE_OPEN, "open" },
//};
//#define IW_ENC_MODE_NUM IW_ARRAY_LEN(iw_enc_mode_name)
static const struct iwmask_name iw_auth_capa_name[] = {
{ IW_ENC_CAPA_WPA, "WPA" },
{ IW_ENC_CAPA_WPA2, "WPA2" },
{ IW_ENC_CAPA_CIPHER_TKIP, "CIPHER-TKIP" },
{ IW_ENC_CAPA_CIPHER_CCMP, "CIPHER-CCMP" },
};
#define IW_AUTH_CAPA_NUM IW_ARRAY_LEN(iw_auth_capa_name)
static const struct iwmask_name iw_auth_cypher_name[] = {
{ IW_AUTH_CIPHER_NONE, "none" },
{ IW_AUTH_CIPHER_WEP40, "WEP-40" },
{ IW_AUTH_CIPHER_TKIP, "TKIP" },
{ IW_AUTH_CIPHER_CCMP, "CCMP" },
{ IW_AUTH_CIPHER_WEP104, "WEP-104" },
};
#define IW_AUTH_CYPHER_NUM IW_ARRAY_LEN(iw_auth_cypher_name)
static const struct iwmask_name iw_wpa_ver_name[] = {
{ IW_AUTH_WPA_VERSION_DISABLED, "disabled" },
{ IW_AUTH_WPA_VERSION_WPA, "WPA" },
{ IW_AUTH_WPA_VERSION_WPA2, "WPA2" },
};
#define IW_WPA_VER_NUM IW_ARRAY_LEN(iw_wpa_ver_name)
static const struct iwmask_name iw_auth_key_mgmt_name[] = {
{ IW_AUTH_KEY_MGMT_802_1X, "802.1x" },
{ IW_AUTH_KEY_MGMT_PSK, "PSK" },
};
#define IW_AUTH_KEY_MGMT_NUM IW_ARRAY_LEN(iw_auth_key_mgmt_name)
static const struct iwmask_name iw_auth_alg_name[] = {
{ IW_AUTH_ALG_OPEN_SYSTEM, "open" },
{ IW_AUTH_ALG_SHARED_KEY, "shared-key" },
{ IW_AUTH_ALG_LEAP, "LEAP" },
};
#define IW_AUTH_ALG_NUM IW_ARRAY_LEN(iw_auth_alg_name)
static const struct iw_auth_descr iw_auth_settings[] = {
{ IW_AUTH_WPA_VERSION, "WPA version", iw_wpa_ver_name, IW_WPA_VER_NUM },
{ IW_AUTH_KEY_MGMT, "Key management", iw_auth_key_mgmt_name, IW_AUTH_KEY_MGMT_NUM },
{ IW_AUTH_CIPHER_PAIRWISE, "Pairwise cipher", iw_auth_cypher_name, IW_AUTH_CYPHER_NUM },
{ IW_AUTH_CIPHER_GROUP, "Pairwise cipher", iw_auth_cypher_name, IW_AUTH_CYPHER_NUM },
{ IW_AUTH_TKIP_COUNTERMEASURES, "TKIP countermeasures", NULL, 0 },
{ IW_AUTH_DROP_UNENCRYPTED, "Drop unencrypted", NULL, 0 },
{ IW_AUTH_80211_AUTH_ALG, "Authentication algorithm", iw_auth_alg_name, IW_AUTH_ALG_NUM },
{ IW_AUTH_RX_UNENCRYPTED_EAPOL, "Receive unencrypted EAPOL", NULL, 0 },
{ IW_AUTH_ROAMING_CONTROL, "Roaming control", NULL, 0 },
{ IW_AUTH_PRIVACY_INVOKED, "Privacy invoked", NULL, 0 },
};
#define IW_AUTH_SETTINGS_NUM IW_ARRAY_LEN(iw_auth_settings)
/* Values for the IW_ENCODE_ALG_* returned by SIOCSIWENCODEEXT */
static const char * iw_encode_alg_name[] = {
"none",
"WEP",
"TKIP",
"CCMP",
"unknown"
};
#define IW_ENCODE_ALG_NUM IW_ARRAY_LEN(iw_encode_alg_name)
#ifndef IW_IE_CIPHER_NONE
/* Cypher values in GENIE (pairwise and group) */
#define IW_IE_CIPHER_NONE 0
#define IW_IE_CIPHER_WEP40 1
#define IW_IE_CIPHER_TKIP 2
#define IW_IE_CIPHER_WRAP 3
#define IW_IE_CIPHER_CCMP 4
#define IW_IE_CIPHER_WEP104 5
/* Key management in GENIE */
#define IW_IE_KEY_MGMT_NONE 0
#define IW_IE_KEY_MGMT_802_1X 1
#define IW_IE_KEY_MGMT_PSK 2
#endif /* IW_IE_CIPHER_NONE */
/* Values for the IW_IE_CIPHER_* in GENIE */
static const char * iw_ie_cypher_name[] = {
"none",
"WEP-40",
"TKIP",
"WRAP",
"CCMP",
"WEP-104",
};
#define IW_IE_CYPHER_NUM IW_ARRAY_LEN(iw_ie_cypher_name)
/* Values for the IW_IE_KEY_MGMT_* in GENIE */
static const char * iw_ie_key_mgmt_name[] = {
"none",
"802.1x",
"PSK",
};
#define IW_IE_KEY_MGMT_NUM IW_ARRAY_LEN(iw_ie_key_mgmt_name)
#endif /* WE_ESSENTIAL */
/************************* WPA SUBROUTINES *************************/
#ifndef WE_ESSENTIAL
/*------------------------------------------------------------------*/
/*
* Print all names corresponding to a mask.
* This may want to be used in iw_print_retry_value() ?
*/
static void
iw_print_mask_name(unsigned int mask,
const struct iwmask_name names[],
const unsigned int num_names,
const char * sep)
{
unsigned int i;
/* Print out all names for the bitmask */
for(i = 0; i < num_names; i++)
{
if(mask & names[i].mask)
{
/* Print out */
printf("%s%s", sep, names[i].name);
/* Remove the bit from the mask */
mask &= ~names[i].mask;
}
}
/* If there is unconsumed bits... */
if(mask != 0)
printf("%sUnknown", sep);
}
/*------------------------------------------------------------------*/
/*
* Print the name corresponding to a value, with overflow check.
*/
static void
iw_print_value_name(unsigned int value,
const char * names[],
const unsigned int num_names)
{
if(value >= num_names)
printf(" unknown (%d)", value);
else
printf(" %s", names[value]);
}
/*------------------------------------------------------------------*/
/*
* Parse, and display the results of an unknown IE.
*
*/
static void
iw_print_ie_unknown(unsigned char * iebuf,
int buflen)
{
int ielen = iebuf[1] + 2;
int i;
if(ielen > buflen)
ielen = buflen;
printf("Unknown: ");
for(i = 0; i < ielen; i++)
printf("%02X", iebuf[i]);
printf("\n");
}
/*------------------------------------------------------------------*/
/*
* Parse, and display the results of a WPA or WPA2 IE.
*
*/
static inline void
iw_print_ie_wpa(unsigned char * iebuf,
int buflen)
{
int ielen = iebuf[1] + 2;
int offset = 2; /* Skip the IE id, and the length. */
unsigned char wpa1_oui[3] = {0x00, 0x50, 0xf2};
unsigned char wpa2_oui[3] = {0x00, 0x0f, 0xac};
unsigned char * wpa_oui;
int i;
uint16_t ver = 0;
uint16_t cnt = 0;
if(ielen > buflen)
ielen = buflen;
#ifdef DEBUG
/* Debugging code. In theory useless, because it's debugged ;-) */
printf("IE raw value %d [%02X", buflen, iebuf[0]);
for(i = 1; i < buflen; i++)
printf(":%02X", iebuf[i]);
printf("]\n");
#endif
switch(iebuf[0])
{
case 0x30: /* WPA2 */
/* Check if we have enough data */
if(ielen < 4)
{
iw_print_ie_unknown(iebuf, buflen);
return;
}
wpa_oui = wpa2_oui;
break;
case 0xdd: /* WPA or else */
wpa_oui = wpa1_oui;
/* Not all IEs that start with 0xdd are WPA.
* So check that the OUI is valid. Note : offset==2 */
if((ielen < 8)
|| (memcmp(&iebuf[offset], wpa_oui, 3) != 0)
|| (iebuf[offset + 3] != 0x01))
{
iw_print_ie_unknown(iebuf, buflen);
return;
}
/* Skip the OUI type */
offset += 4;
break;
default:
return;
}
/* Pick version number (little endian) */
ver = iebuf[offset] | (iebuf[offset + 1] << 8);
offset += 2;
if(iebuf[0] == 0xdd)
printf("WPA Version %d\n", ver);
if(iebuf[0] == 0x30)
printf("IEEE 802.11i/WPA2 Version %d\n", ver);
/* From here, everything is technically optional. */
/* Check if we are done */
if(ielen < (offset + 4))
{
/* We have a short IE. So we should assume TKIP/TKIP. */
printf(" Group Cipher : TKIP\n");
printf(" Pairwise Cipher : TKIP\n");
return;
}
/* Next we have our group cipher. */
if(memcmp(&iebuf[offset], wpa_oui, 3) != 0)
{
printf(" Group Cipher : Proprietary\n");
}
else
{
printf(" Group Cipher :");
iw_print_value_name(iebuf[offset+3],
iw_ie_cypher_name, IW_IE_CYPHER_NUM);
printf("\n");
}
offset += 4;
/* Check if we are done */
if(ielen < (offset + 2))
{
/* We don't have a pairwise cipher, or auth method. Assume TKIP. */
printf(" Pairwise Ciphers : TKIP\n");
return;
}
/* Otherwise, we have some number of pairwise ciphers. */
cnt = iebuf[offset] | (iebuf[offset + 1] << 8);
offset += 2;
printf(" Pairwise Ciphers (%d) :", cnt);
if(ielen < (offset + 4*cnt))
return;
for(i = 0; i < cnt; i++)
{
if(memcmp(&iebuf[offset], wpa_oui, 3) != 0)
{
printf(" Proprietary");
}
else
{
iw_print_value_name(iebuf[offset+3],
iw_ie_cypher_name, IW_IE_CYPHER_NUM);
}
offset+=4;
}
printf("\n");
/* Check if we are done */
if(ielen < (offset + 2))
return;
/* Now, we have authentication suites. */
cnt = iebuf[offset] | (iebuf[offset + 1] << 8);
offset += 2;
printf(" Authentication Suites (%d) :", cnt);
if(ielen < (offset + 4*cnt))
return;
for(i = 0; i < cnt; i++)
{
if(memcmp(&iebuf[offset], wpa_oui, 3) != 0)
{
printf(" Proprietary");
}
else
{
iw_print_value_name(iebuf[offset+3],
iw_ie_key_mgmt_name, IW_IE_KEY_MGMT_NUM);
}
offset+=4;
}
printf("\n");
/* Check if we are done */
if(ielen < (offset + 1))
return;
/* Otherwise, we have capabilities bytes.
* For now, we only care about preauth which is in bit position 1 of the
* first byte. (But, preauth with WPA version 1 isn't supposed to be
* allowed.) 8-) */
if(iebuf[offset] & 0x01)
{
printf(" Preauthentication Supported\n");
}
}
/*------------------------------------------------------------------*/
/*
* Process a generic IE and display the info in human readable form
* for some of the most interesting ones.
* For now, we only decode the WPA IEs.
*/
static inline void
iw_print_gen_ie(unsigned char * buffer,
int buflen)
{
int offset = 0;
/* Loop on each IE, each IE is minimum 2 bytes */
while(offset <= (buflen - 2))
{
printf(" IE: ");
/* Check IE type */
switch(buffer[offset])
{
case 0xdd: /* WPA1 (and other) */
case 0x30: /* WPA2 */
iw_print_ie_wpa(buffer + offset, buflen);
break;
default:
iw_print_ie_unknown(buffer + offset, buflen);
}
/* Skip over this IE to the next one in the list. */
offset += buffer[offset+1] + 2;
}
}
#endif /* WE_ESSENTIAL */
/***************************** SCANNING *****************************/
/*
* This one behave quite differently from the others
*
* Note that we don't use the scanning capability of iwlib (functions
* iw_process_scan() and iw_scan()). The main reason is that
* iw_process_scan() return only a subset of the scan data to the caller,
* for example custom elements and bitrates are ommited. Here, we
* do the complete job...
*/
/*------------------------------------------------------------------*/
/*
* Print one element from the scanning results
*/
static inline void
print_scanning_token(struct stream_descr * stream, /* Stream of events */
struct iw_event * event, /* Extracted token */
struct iwscan_state * state,
struct iw_range * iw_range, /* Range info */
int has_range)
{
char buffer[128]; /* Temporary buffer */
/* Now, let's decode the event */
switch(event->cmd)
{
case SIOCGIWAP:
printf("<cell>\n");
printf("\t<address>%s</address>\n", iw_saether_ntop(&event->u.ap_addr, buffer));
state->ap_num++;
break;
case SIOCGIWFREQ:
{
double freq; /* Frequency/channel */
freq = iw_freq2float(&(event->u.freq));
printf("\t<frequency>%f</frequency>\n", freq);
}
break;
case SIOCGIWESSID:
{
char essid[4*IW_ESSID_MAX_SIZE+1];
memset(essid, '\0', sizeof(essid));
if((event->u.essid.pointer) && (event->u.essid.length))
iw_essid_escape(essid, event->u.essid.pointer, event->u.essid.length);
if(event->u.essid.flags)
{
printf("\t<essid>%s</essid>\n", essid);
}
}
break;
case IWEVQUAL:
iw_print_stats(buffer, sizeof(buffer),
&event->u.qual, iw_range, has_range);
printf("%s", buffer);
printf("</cell>\n");
break;
} /* switch(event->cmd) */
}
/*------------------------------------------------------------------*/
/*
* Perform a scanning on one device
*/
static int
print_scanning_info(int skfd,
char * ifname,
char * args[], /* Command line args */
int count) /* Args count */
{
struct iwreq wrq;
struct iw_scan_req scanopt; /* Options for 'set' */
int scanflags = 0; /* Flags for scan */
unsigned char * buffer = NULL; /* Results */
int buflen = IW_SCAN_MAX_DATA; /* Min for compat WE<17 */
struct iw_range range;
int has_range;
struct timeval tv; /* Select timeout */
int timeout = 15000000; /* 15s */
/* Avoid "Unused parameter" warning */
args = args; count = count;
/* Debugging stuff */
if((IW_EV_LCP_PK2_LEN != IW_EV_LCP_PK_LEN) || (IW_EV_POINT_PK2_LEN != IW_EV_POINT_PK_LEN))
{
fprintf(stderr, "*** Please report to jt@hpl.hp.com your platform details\n");
fprintf(stderr, "*** and the following line :\n");
fprintf(stderr, "*** IW_EV_LCP_PK2_LEN = %zu ; IW_EV_POINT_PK2_LEN = %zu\n\n",
IW_EV_LCP_PK2_LEN, IW_EV_POINT_PK2_LEN);
}
/* Get range stuff */
has_range = (iw_get_range_info(skfd, ifname, &range) >= 0);
/* Check if the interface could support scanning. */
if((!has_range) || (range.we_version_compiled < 14))
{
fprintf(stderr, "%-8.16s Interface doesn't support scanning.\n\n",
ifname);
return(-1);
}
/* Init timeout value -> 250ms between set and first get */
tv.tv_sec = 0;
tv.tv_usec = 250000;
/* Clean up set args */
memset(&scanopt, 0, sizeof(scanopt));
/* Parse command line arguments and extract options.
* Note : when we have enough options, we should use the parser
* from iwconfig... */
while(count > 0)
{
/* One arg is consumed (the option name) */
count--;
/*
* Check for Active Scan (scan with specific essid)
*/
if(!strncmp(args[0], "essid", 5))
{
if(count < 1)
{
fprintf(stderr, "Too few arguments for scanning option [%s]\n",
args[0]);
return(-1);
}
args++;
count--;
/* Store the ESSID in the scan options */
scanopt.essid_len = strlen(args[0]);
memcpy(scanopt.essid, args[0], scanopt.essid_len);
/* Initialise BSSID as needed */
if(scanopt.bssid.sa_family == 0)
{
scanopt.bssid.sa_family = ARPHRD_ETHER;
memset(scanopt.bssid.sa_data, 0xff, ETH_ALEN);
}
/* Scan only this ESSID */
scanflags |= IW_SCAN_THIS_ESSID;
}
else
/* Check for last scan result (do not trigger scan) */
if(!strncmp(args[0], "last", 4))
{
/* Hack */
scanflags |= IW_SCAN_HACK;
}
else
{
fprintf(stderr, "Invalid scanning option [%s]\n", args[0]);
return(-1);
}
/* Next arg */
args++;
}
/* Check if we have scan options */
if(scanflags)
{
wrq.u.data.pointer = (caddr_t) &scanopt;
wrq.u.data.length = sizeof(scanopt);
wrq.u.data.flags = scanflags;
}
else
{
wrq.u.data.pointer = NULL;
wrq.u.data.flags = 0;
wrq.u.data.length = 0;
}
/* If only 'last' was specified on command line, don't trigger a scan */
if(scanflags == IW_SCAN_HACK)
{
/* Skip waiting */
tv.tv_usec = 0;
}
else
{
/* Initiate Scanning */
if(iw_set_ext(skfd, ifname, SIOCSIWSCAN, &wrq) < 0)
{
if((errno != EPERM) || (scanflags != 0))
{
fprintf(stderr, "%-8.16s Interface doesn't support scanning : %s\n\n",
ifname, strerror(errno));
return(-1);
}
/* If we don't have the permission to initiate the scan, we may
* still have permission to read left-over results.
* But, don't wait !!! */
#if 0
/* Not cool, it display for non wireless interfaces... */
fprintf(stderr, "%-8.16s (Could not trigger scanning, just reading left-over results)\n", ifname);
#endif
tv.tv_usec = 0;
}
}
timeout -= tv.tv_usec;
/* Forever */
while(1)
{
fd_set rfds; /* File descriptors for select */
int last_fd; /* Last fd */
int ret;
/* Guess what ? We must re-generate rfds each time */
FD_ZERO(&rfds);
last_fd = -1;
/* In here, add the rtnetlink fd in the list */
/* Wait until something happens */
ret = select(last_fd + 1, &rfds, NULL, NULL, &tv);
/* Check if there was an error */
if(ret < 0)
{
if(errno == EAGAIN || errno == EINTR)
continue;
fprintf(stderr, "Unhandled signal - exiting...\n");
return(-1);
}
/* Check if there was a timeout */
if(ret == 0)
{
unsigned char * newbuf;
realloc:
/* (Re)allocate the buffer - realloc(NULL, len) == malloc(len) */
newbuf = realloc(buffer, buflen);
if(newbuf == NULL)
{
if(buffer)
free(buffer);
fprintf(stderr, "%s: Allocation failed\n", __FUNCTION__);
return(-1);
}
buffer = newbuf;
/* Try to read the results */
wrq.u.data.pointer = buffer;
wrq.u.data.flags = 0;
wrq.u.data.length = buflen;
if(iw_get_ext(skfd, ifname, SIOCGIWSCAN, &wrq) < 0)
{
/* Check if buffer was too small (WE-17 only) */
if((errno == E2BIG) && (range.we_version_compiled > 16)
&& (buflen < 0xFFFF))
{
/* Some driver may return very large scan results, either
* because there are many cells, or because they have many
* large elements in cells (like IWEVCUSTOM). Most will
* only need the regular sized buffer. We now use a dynamic
* allocation of the buffer to satisfy everybody. Of course,
* as we don't know in advance the size of the array, we try
* various increasing sizes. Jean II */
/* Check if the driver gave us any hints. */
if(wrq.u.data.length > buflen)
buflen = wrq.u.data.length;
else
buflen *= 2;
/* wrq.u.data.length is 16 bits so max size is 65535 */
if(buflen > 0xFFFF)
buflen = 0xFFFF;
/* Try again */
goto realloc;
}
/* Check if results not available yet */
if(errno == EAGAIN)
{
/* Restart timer for only 100ms*/
tv.tv_sec = 0;
tv.tv_usec = 100000;
timeout -= tv.tv_usec;
if(timeout > 0)
continue; /* Try again later */
}
/* Bad error */
free(buffer);
fprintf(stderr, "%-8.16s Failed to read scan data : %s\n\n",
ifname, strerror(errno));
return(-2);
}
else
/* We have the results, go to process them */
break;
}
/* In here, check if event and event type
* if scan event, read results. All errors bad & no reset timeout */
}
if(wrq.u.data.length)
{
struct iw_event iwe;
struct stream_descr stream;
struct iwscan_state state = { .ap_num = 1, .val_index = 0 };
int ret;
#ifdef DEBUG
/* Debugging code. In theory useless, because it's debugged ;-) */
int i;
printf("Scan result %d [%02X", wrq.u.data.length, buffer[0]);
for(i = 1; i < wrq.u.data.length; i++)
printf(":%02X", buffer[i]);
printf("]\n");
#endif
printf("<?xml version='1.0'?>\n<cells>\n");
iw_init_event_stream(&stream, (char *) buffer, wrq.u.data.length);
do
{
/* Extract an event and print it */
ret = iw_extract_event_stream(&stream, &iwe,
range.we_version_compiled);
if(ret > 0)
print_scanning_token(&stream, &iwe, &state,
&range, has_range);
}
while(ret > 0);
printf("\n</cells>\n");
}
else
printf("%-8.16s No scan results\n\n", ifname);
free(buffer);
return(0);
}
/*********************** FREQUENCIES/CHANNELS ***********************/
/*------------------------------------------------------------------*/
/*
* Print the number of channels and available frequency for the device
*/
static int
print_freq_info(int skfd,
char * ifname,
char * args[], /* Command line args */
int count) /* Args count */
{
struct iwreq wrq;
struct iw_range range;
double freq;
int k;
int channel;
char buffer[128]; /* Temporary buffer */
/* Avoid "Unused parameter" warning */
args = args; count = count;
/* Get list of frequencies / channels */
if(iw_get_range_info(skfd, ifname, &range) < 0)
fprintf(stderr, "%-8.16s no frequency information.\n\n",
ifname);
else
{
if(range.num_frequency > 0)
{
printf("%-8.16s %d channels in total; available frequencies :\n",
ifname, range.num_channels);
/* Print them all */
for(k = 0; k < range.num_frequency; k++)
{
freq = iw_freq2float(&(range.freq[k]));
iw_print_freq_value(buffer, sizeof(buffer), freq);
printf(" Channel %.2d : %s\n",
range.freq[k].i, buffer);
}
}
else
printf("%-8.16s %d channels\n",
ifname, range.num_channels);
/* Get current frequency / channel and display it */
if(iw_get_ext(skfd, ifname, SIOCGIWFREQ, &wrq) >= 0)
{
freq = iw_freq2float(&(wrq.u.freq));
channel = iw_freq_to_channel(freq, &range);
iw_print_freq(buffer, sizeof(buffer),
freq, channel, wrq.u.freq.flags);
printf(" Current %s\n\n", buffer);
}
}
return(0);
}
/***************************** BITRATES *****************************/
/*------------------------------------------------------------------*/
/*
* Print the number of available bitrates for the device
*/
static int
print_bitrate_info(int skfd,
char * ifname,
char * args[], /* Command line args */
int count) /* Args count */
{
struct iwreq wrq;
struct iw_range range;
int k;
char buffer[128];
/* Avoid "Unused parameter" warning */
args = args; count = count;
/* Extract range info */
if(iw_get_range_info(skfd, ifname, &range) < 0)
fprintf(stderr, "%-8.16s no bit-rate information.\n\n",
ifname);
else
{
if((range.num_bitrates > 0) && (range.num_bitrates <= IW_MAX_BITRATES))
{
printf("%-8.16s %d available bit-rates :\n",
ifname, range.num_bitrates);
/* Print them all */
for(k = 0; k < range.num_bitrates; k++)
{
iw_print_bitrate(buffer, sizeof(buffer), range.bitrate[k]);
/* Maybe this should be %10s */
printf("\t %s\n", buffer);
}
}
else
printf("%-8.16s unknown bit-rate information.\n", ifname);
/* Get current bit rate */
if(iw_get_ext(skfd, ifname, SIOCGIWRATE, &wrq) >= 0)
{
iw_print_bitrate(buffer, sizeof(buffer), wrq.u.bitrate.value);
printf(" Current Bit Rate%c%s\n",
(wrq.u.bitrate.fixed ? '=' : ':'), buffer);
}
/* Try to get the broadcast bitrate if it exist... */
if(range.bitrate_capa & IW_BITRATE_BROADCAST)
{
wrq.u.bitrate.flags = IW_BITRATE_BROADCAST;
if(iw_get_ext(skfd, ifname, SIOCGIWRATE, &wrq) >= 0)
{
iw_print_bitrate(buffer, sizeof(buffer), wrq.u.bitrate.value);
printf(" Broadcast Bit Rate%c%s\n",
(wrq.u.bitrate.fixed ? '=' : ':'), buffer);
}
}
printf("\n");
}
return(0);
}
/************************* ENCRYPTION KEYS *************************/
/*------------------------------------------------------------------*/
/*
* Print all the available encryption keys for the device
*/
static int
print_keys_info(int skfd,
char * ifname,
char * args[], /* Command line args */
int count) /* Args count */
{
struct iwreq wrq;
struct iw_range range;
unsigned char key[IW_ENCODING_TOKEN_MAX];
unsigned int k;
char buffer[128];
/* Avoid "Unused parameter" warning */
args = args; count = count;
/* Extract range info */
if(iw_get_range_info(skfd, ifname, &range) < 0)
fprintf(stderr, "%-8.16s no encryption keys information.\n\n",
ifname);
else
{
printf("%-8.16s ", ifname);
/* Print key sizes */
if((range.num_encoding_sizes > 0) &&
(range.num_encoding_sizes < IW_MAX_ENCODING_SIZES))
{
printf("%d key sizes : %d", range.num_encoding_sizes,
range.encoding_size[0] * 8);
/* Print them all */
for(k = 1; k < range.num_encoding_sizes; k++)
printf(", %d", range.encoding_size[k] * 8);
printf("bits\n ");
}
/* Print the keys and associate mode */
printf("%d keys available :\n", range.max_encoding_tokens);
for(k = 1; k <= range.max_encoding_tokens; k++)
{
wrq.u.data.pointer = (caddr_t) key;
wrq.u.data.length = IW_ENCODING_TOKEN_MAX;
wrq.u.data.flags = k;
if(iw_get_ext(skfd, ifname, SIOCGIWENCODE, &wrq) < 0)
{
fprintf(stderr, "Error reading wireless keys (SIOCGIWENCODE): %s\n", strerror(errno));
break;
}
if((wrq.u.data.flags & IW_ENCODE_DISABLED) ||
(wrq.u.data.length == 0))
printf("\t\t[%d]: off\n", k);
else
{
/* Display the key */
iw_print_key(buffer, sizeof(buffer),
key, wrq.u.data.length, wrq.u.data.flags);
printf("\t\t[%d]: %s", k, buffer);
/* Other info... */
printf(" (%d bits)", wrq.u.data.length * 8);
printf("\n");
}
}
/* Print current key index and mode */
wrq.u.data.pointer = (caddr_t) key;
wrq.u.data.length = IW_ENCODING_TOKEN_MAX;
wrq.u.data.flags = 0; /* Set index to zero to get current */
if(iw_get_ext(skfd, ifname, SIOCGIWENCODE, &wrq) >= 0)
{
/* Note : if above fails, we have already printed an error
* message int the loop above */
printf(" Current Transmit Key: [%d]\n",
wrq.u.data.flags & IW_ENCODE_INDEX);
if(wrq.u.data.flags & IW_ENCODE_RESTRICTED)
printf(" Security mode:restricted\n");
if(wrq.u.data.flags & IW_ENCODE_OPEN)
printf(" Security mode:open\n");
}
printf("\n\n");
}
return(0);
}
/************************* POWER MANAGEMENT *************************/
/*------------------------------------------------------------------*/
/*
* Print Power Management info for each device
*/
static int
get_pm_value(int skfd,
char * ifname,
struct iwreq * pwrq,
int flags,
char * buffer,
int buflen,
int we_version_compiled)