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utils.c
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/*
* Sigma Control API DUT (station/AP)
* Copyright (c) 2014-2017, Qualcomm Atheros, Inc.
* Copyright (c) 2018-2021, The Linux Foundation
* Copyright (c) 2005-2011, Jouni Malinen <j@w1.fi>
* All Rights Reserved.
* Licensed under the Clear BSD license. See README for more details.
*/
#include "sigma_dut.h"
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <signal.h>
#include "wpa_helpers.h"
enum driver_type wifi_chip_type = DRIVER_NOT_SET;
enum openwrt_driver_type openwrt_chip_type = OPENWRT_DRIVER_NOT_SET;
struct wcn_drv_priv_cmd {
char *buf;
int used_len;
int total_len;
};
int file_exists(const char *fname)
{
struct stat s;
return stat(fname, &s) == 0;
}
int set_wifi_chip(const char *chip_type)
{
if (!strncmp(chip_type, "WCN", strlen("WCN")))
wifi_chip_type = DRIVER_WCN;
else if (!strncmp(chip_type, "ATHEROS", strlen("ATHEROS")))
wifi_chip_type = DRIVER_ATHEROS;
else if (!strncmp(chip_type, "AR6003", strlen("AR6003")))
wifi_chip_type = DRIVER_AR6003;
else if (strcmp(chip_type, "MAC80211") == 0)
wifi_chip_type = DRIVER_MAC80211;
else if (strcmp(chip_type, "QNXNTO") == 0)
wifi_chip_type = DRIVER_QNXNTO;
else if (strcmp(chip_type, "OPENWRT") == 0)
wifi_chip_type = DRIVER_OPENWRT;
else if (!strncmp(chip_type, "LINUX-WCN", strlen("LINUX-WCN")))
wifi_chip_type = DRIVER_LINUX_WCN;
else
return -1;
return 0;
}
enum driver_type get_driver_type(struct sigma_dut *dut)
{
struct stat s;
if (wifi_chip_type == DRIVER_NOT_SET) {
/* Check for 60G driver */
ssize_t len;
char link[256];
char buf[256];
const char *ifname = get_station_ifname(dut);
snprintf(buf, sizeof(buf), "/sys/class/net/%s/device/driver",
ifname);
len = readlink(buf, link, sizeof(link) - 1);
if (len >= 0) {
link[len] = '\0';
if (strstr(link, DRIVER_NAME_60G))
return DRIVER_WIL6210;
}
if (stat("/sys/module/mac80211", &s) == 0)
return DRIVER_MAC80211;
return DRIVER_ATHEROS;
}
return wifi_chip_type;
}
void sigma_dut_get_device_driver_name(const char *ifname, char *name,
size_t size)
{
char fname[128], path[128];
struct stat s;
ssize_t res;
char *pos;
name[0] = '\0';
snprintf(path, sizeof(path), "/sys/class/net/%s/phy80211", ifname);
if (stat(path, &s) != 0)
return;
res = snprintf(fname, sizeof(fname),
"/sys/class/net/%s/device/driver", ifname);
if (res < 0 || res >= sizeof(fname))
return;
res = readlink(fname, path, sizeof(path));
if (res < 0)
return;
if (res >= (int) sizeof(path))
res = sizeof(path) - 1;
path[res] = '\0';
pos = strrchr(path, '/');
if (!pos)
pos = path;
else
pos++;
snprintf(name, size, "%s", pos);
}
enum openwrt_driver_type get_openwrt_driver_type(void)
{
struct stat s;
if (openwrt_chip_type == OPENWRT_DRIVER_NOT_SET) {
if (stat("/sys/module/umac", &s) == 0 ||
stat("/sys/module/atd", &s) == 0)
openwrt_chip_type = OPENWRT_DRIVER_ATHEROS;
}
return openwrt_chip_type;
}
enum dev_mode dev_mode_to_enum(const char *mode)
{
if (!mode)
return MODE_UNKNOWN;
if (strcasecmp(mode, "11be") == 0)
return MODE_11BE;
if (strcasecmp(mode, "11ax") == 0)
return MODE_11AX;
if (strcasecmp(mode, "11ac") == 0 || strcasecmp(mode, "ac") == 0)
return MODE_11AC;
return MODE_UNKNOWN;
}
enum sigma_program sigma_program_to_enum(const char *prog)
{
if (prog == NULL)
return PROGRAM_UNKNOWN;
if (strcasecmp(prog, "TDLS") == 0)
return PROGRAM_TDLS;
if (strcasecmp(prog, "HS2") == 0)
return PROGRAM_HS2;
if (strcasecmp(prog, "HS2_R2") == 0 ||
strcasecmp(prog, "HS2-R2") == 0)
return PROGRAM_HS2_R2;
if (strcasecmp(prog, "HS2-R3") == 0)
return PROGRAM_HS2_R3;
if (strcasecmp(prog, "HS2-2022") == 0)
return PROGRAM_HS2_2022;
if (strcasecmp(prog, "HS2-R4") == 0)
return PROGRAM_HS2_R4;
if (strcasecmp(prog, "WFD") == 0)
return PROGRAM_WFD;
if (strcasecmp(prog, "DisplayR2") == 0)
return PROGRAM_DISPLAYR2;
if (strcasecmp(prog, "PMF") == 0)
return PROGRAM_PMF;
if (strcasecmp(prog, "WPS") == 0)
return PROGRAM_WPS;
if (strcasecmp(prog, "11n") == 0)
return PROGRAM_HT;
if (strcasecmp(prog, "VHT") == 0)
return PROGRAM_VHT;
if (strcasecmp(prog, "60GHZ") == 0)
return PROGRAM_60GHZ;
if (strcasecmp(prog, "NAN") == 0)
return PROGRAM_NAN;
if (strcasecmp(prog, "LOC") == 0)
return PROGRAM_LOC;
if (strcasecmp(prog, "MBO") == 0)
return PROGRAM_MBO;
if (strcasecmp(prog, "IoTLP") == 0)
return PROGRAM_IOTLP;
if (strcasecmp(prog, "DPP") == 0)
return PROGRAM_DPP;
if (strcasecmp(prog, "OCE") == 0)
return PROGRAM_OCE;
if (strcasecmp(prog, "WPA3") == 0)
return PROGRAM_WPA3;
if (strcasecmp(prog, "HE") == 0)
return PROGRAM_HE;
if (strcasecmp(prog, "QM") == 0)
return PROGRAM_QM;
if (strcasecmp(prog, "LOCR2") == 0)
return PROGRAM_LOCR2;
if (strcasecmp(prog, "PR") == 0)
return PROGRAM_PR;
if (strcasecmp(prog, "EHT") == 0)
return PROGRAM_EHT;
if (strcasecmp(prog, "P2P") == 0)
return PROGRAM_P2P;
return PROGRAM_UNKNOWN;
}
bool is_passpoint_r2_or_newer(enum sigma_program prog)
{
return prog == PROGRAM_HS2_R2 ||
prog == PROGRAM_HS2_R3 ||
prog == PROGRAM_HS2_2022 ||
prog == PROGRAM_HS2_R4;
}
bool is_passpoint(enum sigma_program prog)
{
return prog == PROGRAM_HS2 ||
is_passpoint_r2_or_newer(prog);
}
static int parse_hex(char c)
{
if (c >= '0' && c <= '9')
return c - '0';
if (c >= 'a' && c <= 'f')
return c - 'a' + 10;
if (c >= 'A' && c <= 'F')
return c - 'A' + 10;
return -1;
}
int hex_byte(const char *str)
{
int res1, res2;
res1 = parse_hex(str[0]);
if (res1 < 0)
return -1;
res2 = parse_hex(str[1]);
if (res2 < 0)
return -1;
return (res1 << 4) | res2;
}
int parse_hexstr(const char *hex, unsigned char *buf, size_t buflen)
{
size_t i;
const char *pos = hex;
for (i = 0; i < buflen; i++) {
int val;
if (*pos == '\0')
break;
val = hex_byte(pos);
if (val < 0)
return -1;
buf[i] = val;
pos += 2;
}
return i;
}
int parse_mac_address(struct sigma_dut *dut, const char *arg,
unsigned char *addr)
{
int i;
const char *pos = arg;
if (strlen(arg) != 17)
goto fail;
for (i = 0; i < ETH_ALEN; i++) {
int val;
val = hex_byte(pos);
if (val < 0)
goto fail;
addr[i] = val;
if (i + 1 < ETH_ALEN) {
pos += 2;
if (*pos != ':')
goto fail;
pos++;
}
}
return 0;
fail:
sigma_dut_print(dut, DUT_MSG_ERROR,
"Invalid MAC address %s (expected format xx:xx:xx:xx:xx:xx)",
arg);
return -1;
}
int is_60g_sigma_dut(struct sigma_dut *dut)
{
return dut->program == PROGRAM_60GHZ ||
(dut->program == PROGRAM_WPS &&
(get_driver_type(dut) == DRIVER_WIL6210));
}
unsigned int channel_to_freq(struct sigma_dut *dut, unsigned int channel)
{
if (is_60g_sigma_dut(dut)) {
if (channel >= 1 && channel <= 4)
return 58320 + 2160 * channel;
return 0;
}
if (channel >= 1 && channel <= 13)
return 2407 + 5 * channel;
if (channel == 14)
return 2484;
if (channel >= 36 && channel <= 165)
return 5000 + 5 * channel;
return 0;
}
unsigned int freq_to_channel(unsigned int freq)
{
if (freq >= 2412 && freq <= 2472)
return (freq - 2407) / 5;
if (freq == 2484)
return 14;
if (freq >= 5180 && freq <= 5825)
return (freq - 5000) / 5;
if (freq >= 58320 && freq <= 64800)
return (freq - 58320) / 2160;
return 0;
}
int freq_to_channel_and_class(unsigned int freq, int sec_channel,
enum oper_chan_width chanwidth,
int *op_class, int *channel)
{
u8 vht_opclass;
if (sec_channel > 1 || sec_channel < -1)
return -1;
if (freq >= 2412 && freq <= 2472) {
if ((freq - 2407) % 5)
return -1;
if (chanwidth)
return -1;
/* 2.407 GHz, channels 1..13 */
if (sec_channel == 1)
*op_class = 83;
else if (sec_channel == -1)
*op_class = 84;
else
*op_class = 81;
*channel = (freq - 2407) / 5;
return 0;
}
if (freq == 2484) {
if (sec_channel || chanwidth)
return -1;
*op_class = 82; /* channel 14 */
*channel = 14;
return 0;
}
if (freq >= 4900 && freq < 5000) {
if ((freq - 4000) % 5)
return -1;
*channel = (freq - 4000) / 5;
*op_class = 0; /* TODO */
return 0;
}
switch (chanwidth) {
case CONF_OPER_CHWIDTH_80MHZ:
vht_opclass = 128;
break;
case CONF_OPER_CHWIDTH_160MHZ:
vht_opclass = 129;
break;
case CONF_OPER_CHWIDTH_80P80MHZ:
vht_opclass = 130;
break;
default:
vht_opclass = 0;
break;
}
/* 5 GHz, channels 36..48 */
if (freq >= 5180 && freq <= 5240) {
if ((freq - 5000) % 5)
return -1;
if (vht_opclass)
*op_class = vht_opclass;
else if (sec_channel == 1)
*op_class = 116;
else if (sec_channel == -1)
*op_class = 117;
else
*op_class = 115;
*channel = (freq - 5000) / 5;
return 0;
}
/* 5 GHz, channels 52..64 */
if (freq >= 5260 && freq <= 5320) {
if ((freq - 5000) % 5)
return -1;
if (vht_opclass)
*op_class = vht_opclass;
else if (sec_channel == 1)
*op_class = 119;
else if (sec_channel == -1)
*op_class = 120;
else
*op_class = 118;
*channel = (freq - 5000) / 5;
return 0;
}
/* 5 GHz, channels 149..177 */
if (freq >= 5745 && freq <= 5885) {
if ((freq - 5000) % 5)
return -1;
if (vht_opclass)
*op_class = vht_opclass;
else if (sec_channel == 1)
*op_class = 126;
else if (sec_channel == -1)
*op_class = 127;
else if (freq <= 5805)
*op_class = 124;
else
*op_class = 125;
*channel = (freq - 5000) / 5;
return 0;
}
/* 5 GHz, channels 100..144 */
if (freq >= 5500 && freq <= 5720) {
if ((freq - 5000) % 5)
return -1;
if (vht_opclass)
*op_class = vht_opclass;
else if (sec_channel == 1)
*op_class = 122;
else if (sec_channel == -1)
*op_class = 123;
else
*op_class = 121;
*channel = (freq - 5000) / 5;
return 0;
}
if (freq >= 5000 && freq < 5900) {
if ((freq - 5000) % 5)
return -1;
*channel = (freq - 5000) / 5;
*op_class = 0; /* TODO */
return 0;
}
if (freq > 5950 && freq <= 7115) {
if ((freq - 5950) % 5)
return -1;
switch (chanwidth) {
case CONF_OPER_CHWIDTH_80MHZ:
*op_class = 133;
break;
case CONF_OPER_CHWIDTH_160MHZ:
*op_class = 134;
break;
case CONF_OPER_CHWIDTH_80P80MHZ:
*op_class = 135;
break;
case CONF_OPER_CHWIDTH_320MHZ:
*op_class = 137;
break;
default:
if (sec_channel)
*op_class = 132;
else
*op_class = 131;
break;
}
*channel = (freq - 5950) / 5;
return 0;
}
if (freq == 5935) {
*op_class = 136;
*channel = (freq - 5925) / 5;
return 0;
}
/* 56.16 GHz, channel 1..6 */
if (freq >= 56160 + 2160 * 1 && freq <= 56160 + 2160 * 6) {
if (sec_channel)
return -1;
switch (chanwidth) {
case CONF_OPER_CHWIDTH_USE_HT:
case CONF_OPER_CHWIDTH_2160MHZ:
*channel = (freq - 56160) / 2160;
*op_class = 180;
break;
case CONF_OPER_CHWIDTH_4320MHZ:
/* EDMG channels 9 - 13 */
if (freq > 56160 + 2160 * 5)
return -1;
*channel = (freq - 56160) / 2160 + 8;
*op_class = 181;
break;
case CONF_OPER_CHWIDTH_6480MHZ:
/* EDMG channels 17 - 20 */
if (freq > 56160 + 2160 * 4)
return -1;
*channel = (freq - 56160) / 2160 + 16;
*op_class = 182;
break;
case CONF_OPER_CHWIDTH_8640MHZ:
/* EDMG channels 25 - 27 */
if (freq > 56160 + 2160 * 3)
return -1;
*channel = (freq - 56160) / 2160 + 24;
*op_class = 183;
break;
default:
return -1;
}
return 0;
}
return -1;
}
int is_ipv6_addr(const char *str)
{
struct sockaddr_in6 addr;
return inet_pton(AF_INET6, str, &(addr.sin6_addr));
}
void convert_mac_addr_to_ipv6_lladdr(u8 *mac_addr, char *ipv6_buf,
size_t buf_len)
{
u8 temp = mac_addr[0] ^ 0x02;
snprintf(ipv6_buf, buf_len, "fe80::%02x%02x:%02xff:fe%02x:%02x%02x",
temp, mac_addr[1], mac_addr[2],
mac_addr[3], mac_addr[4], mac_addr[5]);
}
size_t convert_mac_addr_to_ipv6_linklocal(const u8 *mac_addr, u8 *ipv6)
{
int i;
ipv6[0] = 0xfe;
ipv6[1] = 0x80;
for (i = 2; i < 8; i++)
ipv6[i] = 0;
ipv6[8] = mac_addr[0] ^ 0x02;
ipv6[9] = mac_addr[1];
ipv6[10] = mac_addr[2];
ipv6[11] = 0xff;
ipv6[12] = 0xfe;
ipv6[13] = mac_addr[3];
ipv6[14] = mac_addr[4];
ipv6[15] = mac_addr[5];
return 16;
}
#ifndef ANDROID
size_t strlcpy(char *dest, const char *src, size_t siz)
{
const char *s = src;
size_t left = siz;
if (left) {
/* Copy string up to the maximum size of the dest buffer */
while (--left != 0) {
if ((*dest++ = *s++) == '\0')
break;
}
}
if (left == 0) {
/* Not enough room for the string; force NUL-termination */
if (siz != 0)
*dest = '\0';
while (*s++)
; /* determine total src string length */
}
return s - src - 1;
}
size_t strlcat(char *dst, const char *str, size_t size)
{
char *pos;
size_t dstlen, srclen, copy;
srclen = strlen(str);
dstlen = strlen(dst);
pos = dst + dstlen;
if (dstlen >= size)
return dstlen + srclen;
if (dstlen + srclen >= size)
copy = size - dstlen - 1;
else
copy = srclen;
memcpy(pos, str, copy);
pos[copy] = '\0';
return dstlen + srclen;
}
#endif /* ANDROID */
void hex_dump(struct sigma_dut *dut, u8 *data, size_t len)
{
char buf[1024];
size_t index;
u8 *ptr;
int pos;
memset(buf, 0, sizeof(buf));
ptr = data;
pos = 0;
for (index = 0; index < len; index++) {
pos += snprintf(&(buf[pos]), sizeof(buf) - pos,
"%02x ", *ptr++);
if (pos > 1020)
break;
}
sigma_dut_print(dut, DUT_MSG_INFO, "HEXDUMP len=[%d]", (int) len);
sigma_dut_print(dut, DUT_MSG_INFO, "buf:%s", buf);
}
int snprintf_hex(char *buf, size_t buf_size, const uint8_t *data,
size_t len, bool uppercase)
{
size_t i;
char *pos = buf, *end = buf + buf_size;
int ret;
if (buf_size == 0)
return 0;
for (i = 0; i < len; i++) {
ret = snprintf(pos, end - pos, uppercase ? "%02X" : "%02x",
data[i]);
if (snprintf_error(end - pos, ret)) {
end[-1] = '\0';
return pos - buf;
}
pos += ret;
}
end[-1] = '\0';
return pos - buf;
}
#ifdef NL80211_SUPPORT
void * nl80211_cmd(struct sigma_dut *dut, struct nl80211_ctx *ctx,
struct nl_msg *msg, int flags, uint8_t cmd)
{
if (!ctx)
return NULL;
return genlmsg_put(msg, 0, 0, ctx->netlink_familyid,
0, flags, cmd, 0);
}
static struct nl_msg *
nl80211_ifindex_msg(struct sigma_dut *dut, struct nl80211_ctx *ctx, int ifindex,
int flags, uint8_t cmd)
{
struct nl_msg *msg;
msg = nlmsg_alloc();
if (!msg) {
sigma_dut_print(dut, DUT_MSG_ERROR,
"Failed to allocate NL message");
return NULL;
}
if (!nl80211_cmd(dut, ctx, msg, flags, cmd) ||
nla_put_u32(msg, NL80211_ATTR_IFINDEX, ifindex)) {
nlmsg_free(msg);
return NULL;
}
return msg;
}
struct nl_msg * nl80211_drv_msg(struct sigma_dut *dut, struct nl80211_ctx *ctx,
int ifindex, int flags, uint8_t cmd)
{
return nl80211_ifindex_msg(dut, ctx, ifindex, flags, cmd);
}
static int no_seq_check(struct nl_msg *msg, void *arg)
{
return NL_OK;
}
static int ack_handler(struct nl_msg *msg, void *arg)
{
int *err = arg;
*err = 0;
return NL_STOP;
}
static int finish_handler(struct nl_msg *msg, void *arg)
{
int *ret = arg;
*ret = 0;
return NL_SKIP;
}
static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err,
void *arg)
{
int *ret = arg;
*ret = err->error;
return NL_SKIP;
}
int send_and_recv_msgs(struct sigma_dut *dut, struct nl80211_ctx *ctx,
struct nl_msg *nlmsg,
int (*valid_handler)(struct nl_msg *, void *),
void *valid_data)
{
struct nl_cb *cb;
int err = -ENOMEM;
if (!nlmsg)
return -ENOMEM;
cb = nl_cb_alloc(NL_CB_DEFAULT);
if (!cb)
goto out;
err = nl_send_auto_complete(ctx->sock, nlmsg);
if (err < 0) {
sigma_dut_print(dut, DUT_MSG_ERROR,
"nl80211: failed to send err=%d", err);
goto out;
}
err = 1;
nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err);
nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err);
nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err);
if (valid_handler)
nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM,
valid_handler, valid_data);
while (err > 0) {
int res = nl_recvmsgs(ctx->sock, cb);
if (res < 0) {
sigma_dut_print(dut, DUT_MSG_ERROR,
"nl80211: %s->nl_recvmsgs failed: res=%d, err=%d",
__func__, res, err);
}
}
out:
nl_cb_put(cb);
if (!valid_handler && valid_data == (void *) -1) {
if (nlmsg) {
struct nlmsghdr *hdr = nlmsg_hdr(nlmsg);
void *data = nlmsg_data(hdr);
int len = hdr->nlmsg_len - NLMSG_HDRLEN;
memset(data, 0, len);
}
}
nlmsg_free(nlmsg);
return err;
}
struct family_data {
struct sigma_dut *dut;
const char *group;
int id;
};
static int family_handler(struct nl_msg *msg, void *arg)
{
struct family_data *res = arg;
struct nlattr *tb[CTRL_ATTR_MAX + 1];
struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
struct nlattr *mcgrp;
int i;
struct sigma_dut *dut = res->dut;
nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
genlmsg_attrlen(gnlh, 0), NULL);
if (!tb[CTRL_ATTR_MCAST_GROUPS]) {
sigma_dut_print(dut, DUT_MSG_ERROR,
"mcast groups is not present");
return NL_SKIP;
}
nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) {
struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1];
nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp),
nla_len(mcgrp), NULL);
if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] ||
!tb2[CTRL_ATTR_MCAST_GRP_ID] ||
strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]),
res->group,
nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0)
continue;
res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]);
break;
};
return NL_SKIP;
}
static int nl_get_multicast_id(struct sigma_dut *dut, struct nl80211_ctx *ctx,
const char *family, const char *group)
{
struct nl_msg *msg;
int ret;
struct family_data res = { dut, group, -ENOENT };
res.dut = dut;
msg = nlmsg_alloc();
if (!msg)
return -ENOMEM;
if (!genlmsg_put(msg, 0, 0, genl_ctrl_resolve(ctx->sock, "nlctrl"),
0, 0, CTRL_CMD_GETFAMILY, 0) ||
nla_put_string(msg, CTRL_ATTR_FAMILY_NAME, family)) {
nlmsg_free(msg);
return -1;
}
ret = send_and_recv_msgs(dut, ctx, msg, family_handler, &res);
if (ret == 0)
ret = res.id;
return ret;
}
struct nl80211_ctx * nl80211_init(struct sigma_dut *dut)
{
struct nl80211_ctx *ctx;
ctx = calloc(1, sizeof(struct nl80211_ctx));
if (!ctx) {
sigma_dut_print(dut, DUT_MSG_ERROR,
"Failed to alloc nl80211_ctx");
return NULL;
}
ctx->sock = nl_socket_alloc();
if (!ctx->sock) {
sigma_dut_print(dut, DUT_MSG_ERROR,
"Failed to create NL socket, err: %s",
strerror(errno));
goto cleanup;
}
if (nl_connect(ctx->sock, NETLINK_GENERIC)) {
sigma_dut_print(dut, DUT_MSG_ERROR,
"Could not connect socket, err: %s",
strerror(errno));
goto cleanup;
}
if (nl_socket_set_buffer_size(ctx->sock, SOCK_BUF_SIZE, 0) < 0) {
sigma_dut_print(dut, DUT_MSG_INFO,
"Could not set nl_socket RX buffer size for sock: %s",
strerror(errno));
}
ctx->netlink_familyid = genl_ctrl_resolve(ctx->sock, "nl80211");
if (ctx->netlink_familyid < 0) {
sigma_dut_print(dut, DUT_MSG_ERROR,
"Could not resolve nl80211 family id");
goto cleanup;
}
ctx->nlctrl_familyid = genl_ctrl_resolve(ctx->sock, "nlctrl");
if (ctx->nlctrl_familyid < 0) {
sigma_dut_print(dut, DUT_MSG_ERROR,
"net link family nlctrl is not present: %d err:%s",
ctx->nlctrl_familyid, strerror(errno));
goto cleanup;
}
return ctx;
cleanup:
if (ctx->sock)
nl_socket_free(ctx->sock);
free(ctx);
return NULL;
}
int nl80211_open_event_sock(struct sigma_dut *dut)
{
struct nl_cb *cb = NULL;
int ret;
struct nl80211_ctx *ctx = dut->nl_ctx;
if (!ctx) {
sigma_dut_print(dut, DUT_MSG_ERROR, "nl80211 context is NULL");
return -1;
}
nl80211_close_event_sock(dut);
ctx->event_sock = nl_socket_alloc();
if (!ctx->event_sock) {
sigma_dut_print(dut, DUT_MSG_ERROR,
"Failed to create NL event socket, err: %s",
strerror(errno));
return -1;
}
if (nl_connect(ctx->event_sock, NETLINK_GENERIC)) {
sigma_dut_print(dut, DUT_MSG_ERROR,
"Could not connect event socket, err: %s",
strerror(errno));
return -1;
}
if (nl_socket_set_buffer_size(ctx->event_sock, SOCK_BUF_SIZE, 0) < 0) {