blob: 80fe7853fe9a01a506b9500afc398a1bea9dec64 [file] [log] [blame]
#include <errno.h>
#include "nl80211.h"
#include "iw.h"
#include <unistd.h>
SECTION(measurement);
static int put_preamble(struct nl_msg *msg, char *s)
{
static const struct {
const char *name;
unsigned int val;
} preamble_map[] = {
{ .name = "legacy", .val = NL80211_PREAMBLE_LEGACY, },
{ .name = "ht", .val = NL80211_PREAMBLE_HT, },
{ .name = "vht", .val = NL80211_PREAMBLE_VHT, },
{ .name = "dmg", .val = NL80211_PREAMBLE_DMG, },
};
unsigned int i;
for (i = 0; i < ARRAY_SIZE(preamble_map); i++) {
if (strcasecmp(preamble_map[i].name, s) == 0) {
NLA_PUT_U32(msg, NL80211_PMSR_FTM_REQ_ATTR_PREAMBLE,
preamble_map[i].val);
return 0;
}
}
nla_put_failure:
return -1;
}
static int parse_ftm_target(struct nl_msg *msg, char *str, int peer_index)
{
unsigned char addr[ETH_ALEN];
int res, consumed;
char *bw = NULL, *pos, *tmp, *save_ptr, *delims = " \t\n";
struct nlattr *peer, *req, *reqdata, *ftm, *chan;
bool report_ap_tsf = false, preamble = false;
unsigned int freq = 0, cf1 = 0, cf2 = 0;
res = sscanf(str, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx%n",
&addr[0], &addr[1], &addr[2], &addr[3], &addr[4], &addr[5],
&consumed);
if (res != ETH_ALEN) {
printf("Invalid MAC address\n");
return HANDLER_RET_USAGE;
}
peer = nla_nest_start(msg, peer_index);
NLA_PUT(msg, NL80211_PMSR_PEER_ATTR_ADDR, ETH_ALEN, addr);
req = nla_nest_start(msg, NL80211_PMSR_PEER_ATTR_REQ);
if (!req)
goto nla_put_failure;
reqdata = nla_nest_start(msg, NL80211_PMSR_REQ_ATTR_DATA);
if (!reqdata)
goto nla_put_failure;
ftm = nla_nest_start(msg, NL80211_PMSR_TYPE_FTM);
if (!ftm)
goto nla_put_failure;
str += consumed;
pos = strtok_r(str, delims, &save_ptr);
while (pos) {
if (strncmp(pos, "cf=", 3) == 0) {
freq = strtol(pos + 3, &tmp, 0);
if (*tmp) {
printf("Invalid cf value!\n");
return HANDLER_RET_USAGE;
}
} else if (strncmp(pos, "bw=", 3) == 0) {
bw = pos + 3;
} else if (strncmp(pos, "cf1=", 4) == 0) {
cf1 = strtol(pos + 4, &tmp, 0);
if (*tmp) {
printf("Invalid cf1 value!\n");
return HANDLER_RET_USAGE;
}
} else if (strncmp(pos, "cf2=", 4) == 0) {
cf2 = strtol(pos + 4, &tmp, 0);
if (*tmp) {
printf("Invalid cf2 value!\n");
return HANDLER_RET_USAGE;
}
} else if (strncmp(pos, "bursts_exp=", 11) == 0) {
NLA_PUT_U8(msg,
NL80211_PMSR_FTM_REQ_ATTR_NUM_BURSTS_EXP,
strtol(pos + 11, &tmp, 0));
if (*tmp) {
printf("Invalid bursts_exp value!\n");
return HANDLER_RET_USAGE;
}
} else if (strncmp(pos, "burst_period=", 13) == 0) {
NLA_PUT_U16(msg, NL80211_PMSR_FTM_REQ_ATTR_BURST_PERIOD,
strtol(pos + 13, &tmp, 0));
if (*tmp) {
printf("Invalid burst_period value!\n");
return HANDLER_RET_USAGE;
}
} else if (strncmp(pos, "retries=", 8) == 0) {
NLA_PUT_U8(msg,
NL80211_PMSR_FTM_REQ_ATTR_NUM_FTMR_RETRIES,
strtol(pos + 8, &tmp, 0));
if (*tmp) {
printf("Invalid retries value!\n");
return HANDLER_RET_USAGE;
}
} else if (strncmp(pos, "burst_duration=", 15) == 0) {
NLA_PUT_U8(msg,
NL80211_PMSR_FTM_REQ_ATTR_BURST_DURATION,
strtol(pos + 15, &tmp, 0));
if (*tmp) {
printf("Invalid burst_duration value!\n");
return HANDLER_RET_USAGE;
}
} else if (strncmp(pos, "ftms_per_burst=", 15) == 0) {
NLA_PUT_U8(msg,
NL80211_PMSR_FTM_REQ_ATTR_FTMS_PER_BURST,
strtol(pos + 15, &tmp, 0));
if (*tmp) {
printf("Invalid ftms_per_burst value!\n");
return HANDLER_RET_USAGE;
}
} else if (strcmp(pos, "asap") == 0) {
NLA_PUT_FLAG(msg, NL80211_PMSR_FTM_REQ_ATTR_ASAP);
} else if (strcmp(pos, "ap-tsf") == 0) {
report_ap_tsf = true;
} else if (strcmp(pos, "civic") == 0) {
NLA_PUT_FLAG(msg, NL80211_PMSR_FTM_REQ_ATTR_REQUEST_CIVICLOC);
} else if (strcmp(pos, "lci") == 0) {
NLA_PUT_FLAG(msg, NL80211_PMSR_FTM_REQ_ATTR_REQUEST_LCI);
} else if (strncmp(pos, "preamble=", 9) == 0) {
if (put_preamble(msg, pos + 9)) {
printf("Invalid preamble %s\n", pos + 9);
return HANDLER_RET_USAGE;
}
preamble = true;
} else if (strncmp(pos, "tb", 2) == 0) {
NLA_PUT_FLAG(msg,
NL80211_PMSR_FTM_REQ_ATTR_TRIGGER_BASED);
NLA_PUT_U32(msg, NL80211_PMSR_FTM_REQ_ATTR_PREAMBLE,
NL80211_PREAMBLE_HE);
preamble = true;
} else if (strncmp(pos, "non_tb", 6) == 0) {
NLA_PUT_FLAG(msg,
NL80211_PMSR_FTM_REQ_ATTR_NON_TRIGGER_BASED);
NLA_PUT_U32(msg, NL80211_PMSR_FTM_REQ_ATTR_PREAMBLE,
NL80211_PREAMBLE_HE);
preamble = true;
} else {
printf("Unknown parameter %s\n", pos);
return HANDLER_RET_USAGE;
}
pos = strtok_r(NULL, delims, &save_ptr);
}
if (!preamble) {
int preamble = -1;
switch (str_to_bw(bw)) {
case NL80211_CHAN_WIDTH_20_NOHT:
case NL80211_CHAN_WIDTH_5:
case NL80211_CHAN_WIDTH_10:
preamble = NL80211_PREAMBLE_LEGACY;
break;
case NL80211_CHAN_WIDTH_20:
case NL80211_CHAN_WIDTH_40:
preamble = NL80211_PREAMBLE_HT;
break;
case NL80211_CHAN_WIDTH_80:
case NL80211_CHAN_WIDTH_80P80:
case NL80211_CHAN_WIDTH_160:
preamble = NL80211_PREAMBLE_VHT;
break;
default:
return HANDLER_RET_USAGE;
}
NLA_PUT_U32(msg, NL80211_PMSR_FTM_REQ_ATTR_PREAMBLE, preamble);
}
nla_nest_end(msg, ftm);
if (report_ap_tsf)
NLA_PUT_FLAG(msg, NL80211_PMSR_REQ_ATTR_GET_AP_TSF);
nla_nest_end(msg, reqdata);
nla_nest_end(msg, req);
/* set the channel */
chan = nla_nest_start(msg, NL80211_PMSR_PEER_ATTR_CHAN);
if (!chan)
goto nla_put_failure;
if (freq)
NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
if (cf1)
NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, cf1);
if (cf2)
NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2, cf2);
if (bw)
NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
str_to_bw(bw));
nla_nest_end(msg, chan);
nla_nest_end(msg, peer);
return 0;
nla_put_failure:
return -ENOBUFS;
}
static int parse_ftm_config(struct nl_msg *msg, const char *file)
{
FILE *input;
char line[256];
int line_num;
input = fopen(file, "r");
if (!input) {
int err = errno;
printf("Failed to open file: %s\n", strerror(err));
return -err;
}
for (line_num = 1; fgets(line, sizeof(line), input); line_num++) {
if (line[0] == '#')
continue;
if (parse_ftm_target(msg, line, line_num)) {
printf("Invalid FTM configuration at line %d!\n",
line_num);
return HANDLER_RET_USAGE;
}
}
return 0;
}
static int handle_ftm_req(struct nl80211_state *state, struct nl_msg *msg,
int argc, char **argv, enum id_input id)
{
int err, i;
static char **req_argv;
static const __u32 wait[] = {
NL80211_CMD_PEER_MEASUREMENT_COMPLETE,
};
static const __u32 print[] = {
NL80211_CMD_PEER_MEASUREMENT_RESULT,
NL80211_CMD_PEER_MEASUREMENT_COMPLETE,
};
struct print_event_args printargs = { };
req_argv = calloc(argc + 1, sizeof(req_argv[0]));
req_argv[0] = argv[0];
req_argv[1] = "measurement";
req_argv[2] = "ftm_request_send";
for (i = 3; i < argc; i++)
req_argv[i] = argv[i];
err = handle_cmd(state, id, argc, req_argv);
free(req_argv);
if (err)
return err;
__do_listen_events(state,
ARRAY_SIZE(wait), wait,
ARRAY_SIZE(print), print,
&printargs);
return 0;
}
static int handle_ftm_req_send(struct nl80211_state *state, struct nl_msg *msg,
int argc, char **argv, enum id_input id)
{
struct nlattr *pmsr, *peers;
const char *file;
int err;
if (argc < 1)
return HANDLER_RET_USAGE;
file = argv[0];
argc--;
argv++;
while (argc) {
if (strncmp(argv[0], "randomise", 9) == 0 ||
strncmp(argv[0], "randomize", 9) == 0) {
err = parse_random_mac_addr(msg, argv[0] + 9);
if (err)
return err;
} else if (strncmp(argv[0], "timeout=", 8) == 0) {
char *end;
NLA_PUT_U32(msg, NL80211_ATTR_TIMEOUT,
strtoul(argv[0] + 8, &end, 0));
if (*end)
return HANDLER_RET_USAGE;
} else {
return HANDLER_RET_USAGE;
}
argc--;
argv++;
}
pmsr = nla_nest_start(msg, NL80211_ATTR_PEER_MEASUREMENTS);
if (!pmsr)
goto nla_put_failure;
peers = nla_nest_start(msg, NL80211_PMSR_ATTR_PEERS);
if (!peers)
goto nla_put_failure;
err = parse_ftm_config(msg, file);
if (err)
return err;
nla_nest_end(msg, peers);
nla_nest_end(msg, pmsr);
return 0;
nla_put_failure:
return -ENOBUFS;
}
COMMAND(measurement, ftm_request, "<config-file> [timeout=<seconds>] [randomise[=<addr>/<mask>]]", 0, 0,
CIB_NETDEV, handle_ftm_req,
"Send an FTM request to the targets supplied in the config file.\n"
"Each line in the file represents a target, with the following format:\n"
"<addr> bw=<[20|40|80|80+80|160]> cf=<center_freq> [cf1=<center_freq1>] [cf2=<center_freq2>] [ftms_per_burst=<samples per burst>] [ap-tsf] [asap] [bursts_exp=<num of bursts exponent>] [burst_period=<burst period>] [retries=<num of retries>] [burst_duration=<burst duration>] [preamble=<legacy,ht,vht,dmg>] [lci] [civic] [tb] [non_tb]");
HIDDEN(measurement, ftm_request_send, "", NL80211_CMD_PEER_MEASUREMENT_START,
0, CIB_NETDEV, handle_ftm_req_send);