3538 lines
81 KiB
C
3538 lines
81 KiB
C
/*
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* iwinfo - Wireless Information Library - NL80211 Backend
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*
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* Copyright (C) 2010-2013 Jo-Philipp Wich <xm@subsignal.org>
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*
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* The iwinfo library is free software: you can redistribute it and/or
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* modify it under the terms of the GNU General Public License version 2
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* as published by the Free Software Foundation.
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*
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* The iwinfo library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with the iwinfo library. If not, see http://www.gnu.org/licenses/.
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*
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* The signal handling code is derived from the official madwifi tools,
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* wlanconfig.c in particular. The encryption property handling was
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* inspired by the hostapd madwifi driver.
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*
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* Parts of this code are derived from the Linux iw utility.
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*/
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#include <limits.h>
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#include <glob.h>
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#include <fnmatch.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#include "iwinfo_nl80211.h"
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#define min(x, y) ((x) < (y)) ? (x) : (y)
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#define BIT(x) (1ULL<<(x))
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static struct nl80211_state *nls = NULL;
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static void nl80211_close(void)
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{
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if (nls)
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{
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if (nls->nlctrl)
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genl_family_put(nls->nlctrl);
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if (nls->nl80211)
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genl_family_put(nls->nl80211);
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if (nls->nl_sock)
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nl_socket_free(nls->nl_sock);
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if (nls->nl_cache)
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nl_cache_free(nls->nl_cache);
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free(nls);
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nls = NULL;
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}
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}
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static int nl80211_init(void)
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{
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int err, fd;
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if (!nls)
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{
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nls = malloc(sizeof(struct nl80211_state));
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if (!nls) {
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err = -ENOMEM;
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goto err;
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}
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memset(nls, 0, sizeof(*nls));
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nls->nl_sock = nl_socket_alloc();
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if (!nls->nl_sock) {
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err = -ENOMEM;
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goto err;
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}
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if (genl_connect(nls->nl_sock)) {
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err = -ENOLINK;
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goto err;
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}
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fd = nl_socket_get_fd(nls->nl_sock);
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if (fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | FD_CLOEXEC) < 0) {
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err = -EINVAL;
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goto err;
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}
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if (genl_ctrl_alloc_cache(nls->nl_sock, &nls->nl_cache)) {
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err = -ENOMEM;
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goto err;
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}
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nls->nl80211 = genl_ctrl_search_by_name(nls->nl_cache, "nl80211");
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if (!nls->nl80211) {
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err = -ENOENT;
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goto err;
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}
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nls->nlctrl = genl_ctrl_search_by_name(nls->nl_cache, "nlctrl");
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if (!nls->nlctrl) {
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err = -ENOENT;
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goto err;
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}
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}
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return 0;
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err:
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nl80211_close();
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return err;
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}
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static int nl80211_readint(const char *path)
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{
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int fd;
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int rv = -1;
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char buffer[16];
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if ((fd = open(path, O_RDONLY)) > -1)
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{
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if (read(fd, buffer, sizeof(buffer)) > 0)
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rv = atoi(buffer);
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close(fd);
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}
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return rv;
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}
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static int nl80211_readstr(const char *path, char *buffer, int length)
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{
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int fd;
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int rv = -1;
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if ((fd = open(path, O_RDONLY)) > -1)
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{
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if ((rv = read(fd, buffer, length - 1)) > 0)
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{
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if (buffer[rv - 1] == '\n')
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rv--;
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buffer[rv] = 0;
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}
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close(fd);
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}
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return rv;
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}
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static int nl80211_msg_error(struct sockaddr_nl *nla,
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struct nlmsgerr *err, void *arg)
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{
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int *ret = arg;
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*ret = err->error;
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return NL_STOP;
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}
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static int nl80211_msg_finish(struct nl_msg *msg, void *arg)
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{
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int *ret = arg;
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*ret = 0;
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return NL_SKIP;
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}
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static int nl80211_msg_ack(struct nl_msg *msg, void *arg)
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{
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int *ret = arg;
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*ret = 0;
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return NL_STOP;
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}
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static int nl80211_msg_response(struct nl_msg *msg, void *arg)
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{
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return NL_SKIP;
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}
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static void nl80211_free(struct nl80211_msg_conveyor *cv)
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{
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if (cv)
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{
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if (cv->cb)
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nl_cb_put(cv->cb);
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if (cv->msg)
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nlmsg_free(cv->msg);
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cv->cb = NULL;
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cv->msg = NULL;
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}
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}
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static struct nl80211_msg_conveyor * nl80211_new(struct genl_family *family,
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int cmd, int flags)
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{
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static struct nl80211_msg_conveyor cv;
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struct nl_msg *req = NULL;
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struct nl_cb *cb = NULL;
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req = nlmsg_alloc();
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if (!req)
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goto err;
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cb = nl_cb_alloc(NL_CB_DEFAULT);
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if (!cb)
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goto err;
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genlmsg_put(req, 0, 0, genl_family_get_id(family), 0, flags, cmd, 0);
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cv.msg = req;
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cv.cb = cb;
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return &cv;
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err:
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if (req)
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nlmsg_free(req);
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return NULL;
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}
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static struct nl80211_msg_conveyor * nl80211_ctl(int cmd, int flags)
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{
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if (nl80211_init() < 0)
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return NULL;
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return nl80211_new(nls->nlctrl, cmd, flags);
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}
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static const char *nl80211_phy_path_str(const char *phyname)
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{
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static char path[PATH_MAX];
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const char *prefix = "/sys/devices/";
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int prefix_len = strlen(prefix);
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int buf_len, offset;
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struct dirent *e;
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char buf[128], *link;
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int phy_id;
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int seq = 0;
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DIR *d;
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if (strncmp(phyname, "phy", 3) != 0)
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return NULL;
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phy_id = atoi(phyname + 3);
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buf_len = snprintf(buf, sizeof(buf), "/sys/class/ieee80211/%s/device", phyname);
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link = realpath(buf, path);
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if (!link)
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return NULL;
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if (strncmp(link, prefix, prefix_len) != 0)
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return NULL;
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link += prefix_len;
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prefix = "platform/";
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prefix_len = strlen(prefix);
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if (!strncmp(link, prefix, prefix_len) && strstr(link, "/pci"))
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link += prefix_len;
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snprintf(buf + buf_len, sizeof(buf) - buf_len, "/ieee80211");
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d = opendir(buf);
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if (!d)
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return link;
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while ((e = readdir(d)) != NULL) {
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int cur_id;
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if (strncmp(e->d_name, "phy", 3) != 0)
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continue;
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cur_id = atoi(e->d_name + 3);
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if (cur_id >= phy_id)
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continue;
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seq++;
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}
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closedir(d);
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if (!seq)
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return link;
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offset = link - path + strlen(link);
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snprintf(path + offset, sizeof(path) - offset, "+%d", seq);
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return link;
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}
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static int nl80211_phy_idx_from_path(const char *path)
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{
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char buf[128];
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struct dirent *e;
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const char *cur_path;
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int idx = -1;
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DIR *d;
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if (!path)
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return -1;
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d = opendir("/sys/class/ieee80211");
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if (!d)
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return -1;
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while ((e = readdir(d)) != NULL) {
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cur_path = nl80211_phy_path_str(e->d_name);
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if (!cur_path)
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continue;
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if (strcmp(cur_path, path) != 0)
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continue;
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snprintf(buf, sizeof(buf), "/sys/class/ieee80211/%s/index", e->d_name);
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idx = nl80211_readint(buf);
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if (idx >= 0)
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break;
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}
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closedir(d);
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return idx;
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}
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static int nl80211_phy_idx_from_macaddr(const char *opt)
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{
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char buf[128];
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int i, idx = -1;
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glob_t gl;
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if (!opt)
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return -1;
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snprintf(buf, sizeof(buf), "/sys/class/ieee80211/*"); /**/
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if (glob(buf, 0, NULL, &gl))
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return -1;
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for (i = 0; i < gl.gl_pathc; i++)
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{
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snprintf(buf, sizeof(buf), "%s/macaddress", gl.gl_pathv[i]);
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if (nl80211_readstr(buf, buf, sizeof(buf)) <= 0)
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continue;
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if (fnmatch(opt, buf, FNM_CASEFOLD))
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continue;
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snprintf(buf, sizeof(buf), "%s/index", gl.gl_pathv[i]);
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if ((idx = nl80211_readint(buf)) > -1)
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break;
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}
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globfree(&gl);
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return idx;
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}
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static int nl80211_phy_idx_from_phy(const char *opt)
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{
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char buf[128];
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if (!opt)
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return -1;
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snprintf(buf, sizeof(buf), "/sys/class/ieee80211/%s/index", opt);
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return nl80211_readint(buf);
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}
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static int nl80211_phy_idx_from_uci(const char *name)
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{
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struct uci_section *s;
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const char *opt;
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int idx = -1;
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s = iwinfo_uci_get_radio(name, "mac80211");
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if (!s)
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goto out;
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opt = uci_lookup_option_string(uci_ctx, s, "path");
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idx = nl80211_phy_idx_from_path(opt);
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if (idx >= 0)
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goto out;
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opt = uci_lookup_option_string(uci_ctx, s, "macaddr");
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idx = nl80211_phy_idx_from_macaddr(opt);
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if (idx >= 0)
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goto out;
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opt = uci_lookup_option_string(uci_ctx, s, "phy");
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idx = nl80211_phy_idx_from_phy(opt);
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out:
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iwinfo_uci_free();
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return idx;
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}
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static struct nl80211_msg_conveyor * nl80211_msg(const char *ifname,
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int cmd, int flags)
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{
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int ifidx = -1, phyidx = -1;
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struct nl80211_msg_conveyor *cv;
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if (ifname == NULL)
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return NULL;
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|
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if (nl80211_init() < 0)
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return NULL;
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if (!strncmp(ifname, "phy", 3))
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phyidx = atoi(&ifname[3]);
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else if (!strncmp(ifname, "radio", 5))
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phyidx = nl80211_phy_idx_from_uci(ifname);
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if (!strncmp(ifname, "mon.", 4))
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ifidx = if_nametoindex(&ifname[4]);
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else
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ifidx = if_nametoindex(ifname);
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/* Valid ifidx must be greater than 0 */
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if ((ifidx <= 0) && (phyidx < 0))
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return NULL;
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cv = nl80211_new(nls->nl80211, cmd, flags);
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if (!cv)
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return NULL;
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if (ifidx > 0)
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NLA_PUT_U32(cv->msg, NL80211_ATTR_IFINDEX, ifidx);
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else if (phyidx > -1)
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NLA_PUT_U32(cv->msg, NL80211_ATTR_WIPHY, phyidx);
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return cv;
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nla_put_failure:
|
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nl80211_free(cv);
|
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return NULL;
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}
|
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|
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static int nl80211_send(struct nl80211_msg_conveyor *cv,
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int (*cb_func)(struct nl_msg *, void *),
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void *cb_arg)
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{
|
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static struct nl80211_msg_conveyor rcv;
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int err;
|
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|
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if (cb_func)
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nl_cb_set(cv->cb, NL_CB_VALID, NL_CB_CUSTOM, cb_func, cb_arg);
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else
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nl_cb_set(cv->cb, NL_CB_VALID, NL_CB_CUSTOM, nl80211_msg_response, &rcv);
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|
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err = nl_send_auto_complete(nls->nl_sock, cv->msg);
|
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|
|
if (err < 0)
|
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goto out;
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err = 1;
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|
|
nl_cb_err(cv->cb, NL_CB_CUSTOM, nl80211_msg_error, &err);
|
|
nl_cb_set(cv->cb, NL_CB_FINISH, NL_CB_CUSTOM, nl80211_msg_finish, &err);
|
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nl_cb_set(cv->cb, NL_CB_ACK, NL_CB_CUSTOM, nl80211_msg_ack, &err);
|
|
|
|
while (err > 0)
|
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nl_recvmsgs(nls->nl_sock, cv->cb);
|
|
|
|
out:
|
|
nl80211_free(cv);
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_request(const char *ifname, int cmd, int flags,
|
|
int (*cb_func)(struct nl_msg *, void *),
|
|
void *cb_arg)
|
|
{
|
|
struct nl80211_msg_conveyor *cv;
|
|
|
|
cv = nl80211_msg(ifname, cmd, flags);
|
|
|
|
if (!cv)
|
|
return -ENOMEM;
|
|
|
|
return nl80211_send(cv, cb_func, cb_arg);
|
|
}
|
|
|
|
static struct nlattr ** nl80211_parse(struct nl_msg *msg)
|
|
{
|
|
struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
|
|
static struct nlattr *attr[NL80211_ATTR_MAX + 1];
|
|
|
|
nla_parse(attr, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
|
|
genlmsg_attrlen(gnlh, 0), NULL);
|
|
|
|
return attr;
|
|
}
|
|
|
|
static int nl80211_get_protocol_features_cb(struct nl_msg *msg, void *arg)
|
|
{
|
|
uint32_t *features = arg;
|
|
struct nlattr **attr = nl80211_parse(msg);
|
|
|
|
if (attr[NL80211_ATTR_PROTOCOL_FEATURES])
|
|
*features = nla_get_u32(attr[NL80211_ATTR_PROTOCOL_FEATURES]);
|
|
|
|
return NL_SKIP;
|
|
}
|
|
|
|
static int nl80211_get_protocol_features(const char *ifname)
|
|
{
|
|
struct nl80211_msg_conveyor *req;
|
|
uint32_t features = 0;
|
|
|
|
req = nl80211_msg(ifname, NL80211_CMD_GET_PROTOCOL_FEATURES, 0);
|
|
if (req) {
|
|
nl80211_send(req, nl80211_get_protocol_features_cb, &features);
|
|
nl80211_free(req);
|
|
}
|
|
|
|
return features;
|
|
}
|
|
|
|
static int nl80211_subscribe_cb(struct nl_msg *msg, void *arg)
|
|
{
|
|
struct nl80211_group_conveyor *cv = arg;
|
|
|
|
struct nlattr **attr = nl80211_parse(msg);
|
|
struct nlattr *mgrpinfo[CTRL_ATTR_MCAST_GRP_MAX + 1];
|
|
struct nlattr *mgrp;
|
|
int mgrpidx;
|
|
|
|
if (!attr[CTRL_ATTR_MCAST_GROUPS])
|
|
return NL_SKIP;
|
|
|
|
nla_for_each_nested(mgrp, attr[CTRL_ATTR_MCAST_GROUPS], mgrpidx)
|
|
{
|
|
nla_parse(mgrpinfo, CTRL_ATTR_MCAST_GRP_MAX,
|
|
nla_data(mgrp), nla_len(mgrp), NULL);
|
|
|
|
if (mgrpinfo[CTRL_ATTR_MCAST_GRP_ID] &&
|
|
mgrpinfo[CTRL_ATTR_MCAST_GRP_NAME] &&
|
|
!strncmp(nla_data(mgrpinfo[CTRL_ATTR_MCAST_GRP_NAME]),
|
|
cv->name, nla_len(mgrpinfo[CTRL_ATTR_MCAST_GRP_NAME])))
|
|
{
|
|
cv->id = nla_get_u32(mgrpinfo[CTRL_ATTR_MCAST_GRP_ID]);
|
|
break;
|
|
}
|
|
}
|
|
|
|
return NL_SKIP;
|
|
}
|
|
|
|
static int nl80211_subscribe(const char *family, const char *group)
|
|
{
|
|
struct nl80211_group_conveyor cv = { .name = group, .id = -ENOENT };
|
|
struct nl80211_msg_conveyor *req;
|
|
int err;
|
|
|
|
req = nl80211_ctl(CTRL_CMD_GETFAMILY, 0);
|
|
if (req)
|
|
{
|
|
NLA_PUT_STRING(req->msg, CTRL_ATTR_FAMILY_NAME, family);
|
|
err = nl80211_send(req, nl80211_subscribe_cb, &cv);
|
|
|
|
if (err)
|
|
return err;
|
|
|
|
return nl_socket_add_membership(nls->nl_sock, cv.id);
|
|
|
|
nla_put_failure:
|
|
nl80211_free(req);
|
|
}
|
|
|
|
return -ENOMEM;
|
|
}
|
|
|
|
|
|
static int nl80211_wait_cb(struct nl_msg *msg, void *arg)
|
|
{
|
|
struct nl80211_event_conveyor *cv = arg;
|
|
struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
|
|
|
|
if (cv->wait[gnlh->cmd / 32] & (1 << (gnlh->cmd % 32)))
|
|
cv->recv = gnlh->cmd;
|
|
|
|
return NL_SKIP;
|
|
}
|
|
|
|
static int nl80211_wait_seq_check(struct nl_msg *msg, void *arg)
|
|
{
|
|
return NL_OK;
|
|
}
|
|
|
|
static int __nl80211_wait(const char *family, const char *group, ...)
|
|
{
|
|
struct nl80211_event_conveyor cv = { };
|
|
struct nl_cb *cb;
|
|
int err = 0;
|
|
int cmd;
|
|
va_list ap;
|
|
|
|
if (nl80211_subscribe(family, group))
|
|
return -ENOENT;
|
|
|
|
cb = nl_cb_alloc(NL_CB_DEFAULT);
|
|
|
|
if (!cb)
|
|
return -ENOMEM;
|
|
|
|
nl_cb_err(cb, NL_CB_CUSTOM, nl80211_msg_error, &err);
|
|
nl_cb_set(cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, nl80211_wait_seq_check, NULL);
|
|
nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, nl80211_wait_cb, &cv );
|
|
|
|
va_start(ap, group);
|
|
|
|
for (cmd = va_arg(ap, int); cmd != 0; cmd = va_arg(ap, int))
|
|
cv.wait[cmd / 32] |= (1 << (cmd % 32));
|
|
|
|
va_end(ap);
|
|
|
|
while (!cv.recv && !err)
|
|
nl_recvmsgs(nls->nl_sock, cb);
|
|
|
|
nl_cb_put(cb);
|
|
|
|
return err;
|
|
}
|
|
|
|
#define nl80211_wait(family, group, ...) \
|
|
__nl80211_wait(family, group, __VA_ARGS__, 0)
|
|
|
|
|
|
static int nl80211_freq2channel(int freq)
|
|
{
|
|
if (freq == 2484)
|
|
return 14;
|
|
else if (freq < 2484)
|
|
return (freq - 2407) / 5;
|
|
else if (freq >= 4910 && freq <= 4980)
|
|
return (freq - 4000) / 5;
|
|
else if(freq >= 56160 + 2160 * 1 && freq <= 56160 + 2160 * 6)
|
|
return (freq - 56160) / 2160;
|
|
else
|
|
return (freq - 5000) / 5;
|
|
}
|
|
|
|
static int nl80211_channel2freq(int channel, const char *band)
|
|
{
|
|
if (!band || band[0] != 'a')
|
|
{
|
|
if (channel == 14)
|
|
return 2484;
|
|
else if (channel < 14)
|
|
return (channel * 5) + 2407;
|
|
}
|
|
else if ( strcmp(band, "ad") == 0)
|
|
{
|
|
return 56160 + 2160 * channel;
|
|
}
|
|
else
|
|
{
|
|
if (channel >= 182 && channel <= 196)
|
|
return (channel * 5) + 4000;
|
|
else
|
|
return (channel * 5) + 5000;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_ifname2phy_cb(struct nl_msg *msg, void *arg)
|
|
{
|
|
char *buf = arg;
|
|
struct nlattr **attr = nl80211_parse(msg);
|
|
|
|
if (attr[NL80211_ATTR_WIPHY_NAME])
|
|
memcpy(buf, nla_data(attr[NL80211_ATTR_WIPHY_NAME]),
|
|
nla_len(attr[NL80211_ATTR_WIPHY_NAME]));
|
|
else
|
|
buf[0] = 0;
|
|
|
|
return NL_SKIP;
|
|
}
|
|
|
|
static char * nl80211_ifname2phy(const char *ifname)
|
|
{
|
|
static char phy[32] = { 0 };
|
|
|
|
memset(phy, 0, sizeof(phy));
|
|
|
|
nl80211_request(ifname, NL80211_CMD_GET_WIPHY, 0,
|
|
nl80211_ifname2phy_cb, phy);
|
|
|
|
return phy[0] ? phy : NULL;
|
|
}
|
|
|
|
static char * nl80211_phy2ifname(const char *ifname)
|
|
{
|
|
int ifidx = -1, cifidx = -1, phyidx = -1;
|
|
char buffer[64];
|
|
static char nif[IFNAMSIZ] = { 0 };
|
|
|
|
DIR *d;
|
|
struct dirent *e;
|
|
|
|
/* Only accept phy name of the form phy%d or radio%d */
|
|
if (!ifname)
|
|
return NULL;
|
|
else if (!strncmp(ifname, "phy", 3))
|
|
phyidx = atoi(&ifname[3]);
|
|
else if (!strncmp(ifname, "radio", 5))
|
|
phyidx = nl80211_phy_idx_from_uci(ifname);
|
|
else
|
|
return NULL;
|
|
|
|
memset(nif, 0, sizeof(nif));
|
|
|
|
if (phyidx > -1)
|
|
{
|
|
if ((d = opendir("/sys/class/net")) != NULL)
|
|
{
|
|
while ((e = readdir(d)) != NULL)
|
|
{
|
|
snprintf(buffer, sizeof(buffer),
|
|
"/sys/class/net/%s/phy80211/index", e->d_name);
|
|
|
|
if (nl80211_readint(buffer) == phyidx)
|
|
{
|
|
snprintf(buffer, sizeof(buffer),
|
|
"/sys/class/net/%s/ifindex", e->d_name);
|
|
|
|
if ((cifidx = nl80211_readint(buffer)) >= 0 &&
|
|
((ifidx < 0) || (cifidx < ifidx)))
|
|
{
|
|
ifidx = cifidx;
|
|
strncpy(nif, e->d_name, sizeof(nif) - 1);
|
|
}
|
|
}
|
|
}
|
|
|
|
closedir(d);
|
|
}
|
|
}
|
|
|
|
return nif[0] ? nif : NULL;
|
|
}
|
|
|
|
static int nl80211_get_mode_cb(struct nl_msg *msg, void *arg)
|
|
{
|
|
int *mode = arg;
|
|
struct nlattr **tb = nl80211_parse(msg);
|
|
const int ifmodes[NL80211_IFTYPE_MAX + 1] = {
|
|
IWINFO_OPMODE_UNKNOWN, /* unspecified */
|
|
IWINFO_OPMODE_ADHOC, /* IBSS */
|
|
IWINFO_OPMODE_CLIENT, /* managed */
|
|
IWINFO_OPMODE_MASTER, /* AP */
|
|
IWINFO_OPMODE_AP_VLAN, /* AP/VLAN */
|
|
IWINFO_OPMODE_WDS, /* WDS */
|
|
IWINFO_OPMODE_MONITOR, /* monitor */
|
|
IWINFO_OPMODE_MESHPOINT, /* mesh point */
|
|
IWINFO_OPMODE_P2P_CLIENT, /* P2P-client */
|
|
IWINFO_OPMODE_P2P_GO, /* P2P-GO */
|
|
};
|
|
|
|
if (tb[NL80211_ATTR_IFTYPE])
|
|
*mode = ifmodes[nla_get_u32(tb[NL80211_ATTR_IFTYPE])];
|
|
|
|
return NL_SKIP;
|
|
}
|
|
|
|
|
|
static int nl80211_get_mode(const char *ifname, int *buf)
|
|
{
|
|
char *res;
|
|
|
|
*buf = IWINFO_OPMODE_UNKNOWN;
|
|
|
|
res = nl80211_phy2ifname(ifname);
|
|
|
|
nl80211_request(res ? res : ifname, NL80211_CMD_GET_INTERFACE, 0,
|
|
nl80211_get_mode_cb, buf);
|
|
|
|
return (*buf == IWINFO_OPMODE_UNKNOWN) ? -1 : 0;
|
|
}
|
|
|
|
static int __nl80211_hostapd_query(const char *ifname, ...)
|
|
{
|
|
va_list ap, ap_cur;
|
|
char *phy, *search, *dest, *key, *val, buf[128];
|
|
int len, mode, found = 0, match = 1;
|
|
FILE *fp;
|
|
|
|
if (nl80211_get_mode(ifname, &mode))
|
|
return 0;
|
|
|
|
if (mode != IWINFO_OPMODE_MASTER && mode != IWINFO_OPMODE_AP_VLAN)
|
|
return 0;
|
|
|
|
phy = nl80211_ifname2phy(ifname);
|
|
|
|
if (!phy)
|
|
return 0;
|
|
|
|
snprintf(buf, sizeof(buf), "/var/run/hostapd-%s.conf", phy);
|
|
fp = fopen(buf, "r");
|
|
|
|
if (!fp)
|
|
return 0;
|
|
|
|
va_start(ap, ifname);
|
|
|
|
/* clear all destination buffers */
|
|
va_copy(ap_cur, ap);
|
|
|
|
while ((search = va_arg(ap_cur, char *)) != NULL)
|
|
{
|
|
dest = va_arg(ap_cur, char *);
|
|
len = va_arg(ap_cur, int);
|
|
|
|
memset(dest, 0, len);
|
|
}
|
|
|
|
va_end(ap_cur);
|
|
|
|
/* iterate applicable lines and copy found values into dest buffers */
|
|
while (fgets(buf, sizeof(buf), fp))
|
|
{
|
|
key = strtok(buf, " =\t\n");
|
|
val = strtok(NULL, "\n");
|
|
|
|
if (!key || !val || !*key || *key == '#')
|
|
continue;
|
|
|
|
if (!strcmp(key, "interface") || !strcmp(key, "bss"))
|
|
match = !strcmp(ifname, val);
|
|
|
|
if (!match)
|
|
continue;
|
|
|
|
va_copy(ap_cur, ap);
|
|
|
|
while ((search = va_arg(ap_cur, char *)) != NULL)
|
|
{
|
|
dest = va_arg(ap_cur, char *);
|
|
len = va_arg(ap_cur, int);
|
|
|
|
if (!strcmp(search, key))
|
|
{
|
|
strncpy(dest, val, len - 1);
|
|
found++;
|
|
break;
|
|
}
|
|
}
|
|
|
|
va_end(ap_cur);
|
|
}
|
|
|
|
fclose(fp);
|
|
|
|
va_end(ap);
|
|
|
|
return found;
|
|
}
|
|
|
|
#define nl80211_hostapd_query(ifname, ...) \
|
|
__nl80211_hostapd_query(ifname, ##__VA_ARGS__, NULL)
|
|
|
|
|
|
static inline int nl80211_wpactl_recv(int sock, char *buf, int blen)
|
|
{
|
|
fd_set rfds;
|
|
struct timeval tv = { 0, 256000 };
|
|
|
|
FD_ZERO(&rfds);
|
|
FD_SET(sock, &rfds);
|
|
|
|
memset(buf, 0, blen);
|
|
|
|
if (select(sock + 1, &rfds, NULL, NULL, &tv) < 0)
|
|
return -1;
|
|
|
|
if (!FD_ISSET(sock, &rfds))
|
|
return -1;
|
|
|
|
return recv(sock, buf, blen - 1, 0);
|
|
}
|
|
|
|
static int nl80211_wpactl_connect(const char *ifname, struct sockaddr_un *local)
|
|
{
|
|
struct sockaddr_un remote = { 0 };
|
|
size_t remote_length, local_length;
|
|
|
|
int sock = socket(PF_UNIX, SOCK_DGRAM, 0);
|
|
if (sock < 0)
|
|
return sock;
|
|
|
|
remote.sun_family = AF_UNIX;
|
|
remote_length = sizeof(remote.sun_family) +
|
|
sprintf(remote.sun_path, "/var/run/wpa_supplicant-%s/%s",
|
|
ifname, ifname);
|
|
|
|
if (fcntl(sock, F_SETFD, fcntl(sock, F_GETFD) | FD_CLOEXEC) < 0)
|
|
{
|
|
close(sock);
|
|
return -1;
|
|
}
|
|
|
|
if (connect(sock, (struct sockaddr *)&remote, remote_length))
|
|
{
|
|
remote_length = sizeof(remote.sun_family) +
|
|
sprintf(remote.sun_path, "/var/run/wpa_supplicant/%s", ifname);
|
|
|
|
if (connect(sock, (struct sockaddr *)&remote, remote_length))
|
|
{
|
|
close(sock);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
local->sun_family = AF_UNIX;
|
|
local_length = sizeof(local->sun_family) +
|
|
sprintf(local->sun_path, "/var/run/iwinfo-%s-%d", ifname, getpid());
|
|
|
|
if (bind(sock, (struct sockaddr *)local, local_length) < 0)
|
|
{
|
|
close(sock);
|
|
return -1;
|
|
}
|
|
|
|
return sock;
|
|
}
|
|
|
|
static int __nl80211_wpactl_query(const char *ifname, ...)
|
|
{
|
|
va_list ap, ap_cur;
|
|
struct sockaddr_un local = { 0 };
|
|
int len, mode, found = 0, sock = -1;
|
|
char *search, *dest, *key, *val, *line, *pos, buf[512];
|
|
|
|
if (nl80211_get_mode(ifname, &mode))
|
|
return 0;
|
|
|
|
if (mode != IWINFO_OPMODE_CLIENT &&
|
|
mode != IWINFO_OPMODE_ADHOC &&
|
|
mode != IWINFO_OPMODE_MESHPOINT)
|
|
return 0;
|
|
|
|
sock = nl80211_wpactl_connect(ifname, &local);
|
|
|
|
if (sock < 0)
|
|
return 0;
|
|
|
|
va_start(ap, ifname);
|
|
|
|
/* clear all destination buffers */
|
|
va_copy(ap_cur, ap);
|
|
|
|
while ((search = va_arg(ap_cur, char *)) != NULL)
|
|
{
|
|
dest = va_arg(ap_cur, char *);
|
|
len = va_arg(ap_cur, int);
|
|
|
|
memset(dest, 0, len);
|
|
}
|
|
|
|
va_end(ap_cur);
|
|
|
|
send(sock, "STATUS", 6, 0);
|
|
|
|
while (true)
|
|
{
|
|
if (nl80211_wpactl_recv(sock, buf, sizeof(buf)) <= 0)
|
|
break;
|
|
|
|
if (buf[0] == '<')
|
|
continue;
|
|
|
|
for (line = strtok_r(buf, "\n", &pos);
|
|
line != NULL;
|
|
line = strtok_r(NULL, "\n", &pos))
|
|
{
|
|
key = strtok(line, "=");
|
|
val = strtok(NULL, "\n");
|
|
|
|
if (!key || !val)
|
|
continue;
|
|
|
|
va_copy(ap_cur, ap);
|
|
|
|
while ((search = va_arg(ap_cur, char *)) != NULL)
|
|
{
|
|
dest = va_arg(ap_cur, char *);
|
|
len = va_arg(ap_cur, int);
|
|
|
|
if (!strcmp(search, key))
|
|
{
|
|
strncpy(dest, val, len - 1);
|
|
found++;
|
|
break;
|
|
}
|
|
}
|
|
|
|
va_end(ap_cur);
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
va_end(ap);
|
|
|
|
close(sock);
|
|
unlink(local.sun_path);
|
|
|
|
return found;
|
|
}
|
|
|
|
#define nl80211_wpactl_query(ifname, ...) \
|
|
__nl80211_wpactl_query(ifname, ##__VA_ARGS__, NULL)
|
|
|
|
|
|
static char * nl80211_ifadd(const char *ifname)
|
|
{
|
|
char path[PATH_MAX];
|
|
static char nif[IFNAMSIZ] = { 0 };
|
|
struct nl80211_msg_conveyor *req;
|
|
FILE *sysfs;
|
|
|
|
req = nl80211_msg(ifname, NL80211_CMD_NEW_INTERFACE, 0);
|
|
if (req)
|
|
{
|
|
snprintf(nif, sizeof(nif), "tmp.%s", ifname);
|
|
|
|
NLA_PUT_STRING(req->msg, NL80211_ATTR_IFNAME, nif);
|
|
NLA_PUT_U32(req->msg, NL80211_ATTR_IFTYPE, NL80211_IFTYPE_STATION);
|
|
|
|
nl80211_send(req, NULL, NULL);
|
|
|
|
snprintf(path, sizeof(path) - 1,
|
|
"/proc/sys/net/ipv6/conf/%s/disable_ipv6", nif);
|
|
|
|
if ((sysfs = fopen(path, "w")) != NULL)
|
|
{
|
|
fwrite("0\n", 1, 2, sysfs);
|
|
fclose(sysfs);
|
|
}
|
|
|
|
return nif;
|
|
|
|
nla_put_failure:
|
|
nl80211_free(req);
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static void nl80211_ifdel(const char *ifname)
|
|
{
|
|
struct nl80211_msg_conveyor *req;
|
|
int err;
|
|
|
|
req = nl80211_msg(ifname, NL80211_CMD_DEL_INTERFACE, 0);
|
|
if (req)
|
|
{
|
|
NLA_PUT_STRING(req->msg, NL80211_ATTR_IFNAME, ifname);
|
|
|
|
nl80211_send(req, NULL, NULL);
|
|
return;
|
|
|
|
nla_put_failure:
|
|
nl80211_free(req);
|
|
}
|
|
}
|
|
|
|
static void nl80211_hostapd_hup(const char *ifname)
|
|
{
|
|
int fd, pid = 0;
|
|
char buf[32];
|
|
char *phy = nl80211_ifname2phy(ifname);
|
|
|
|
if (phy)
|
|
{
|
|
snprintf(buf, sizeof(buf), "/var/run/wifi-%s.pid", phy);
|
|
if ((fd = open(buf, O_RDONLY)) >= 0)
|
|
{
|
|
if (read(fd, buf, sizeof(buf)) > 0)
|
|
pid = atoi(buf);
|
|
|
|
close(fd);
|
|
}
|
|
|
|
if (pid > 0)
|
|
kill(pid, 1);
|
|
}
|
|
}
|
|
|
|
|
|
static int nl80211_probe(const char *ifname)
|
|
{
|
|
return !!nl80211_ifname2phy(ifname);
|
|
}
|
|
|
|
struct nl80211_ssid_bssid {
|
|
unsigned char *ssid;
|
|
unsigned char bssid[7];
|
|
};
|
|
|
|
static int nl80211_get_macaddr_cb(struct nl_msg *msg, void *arg)
|
|
{
|
|
struct nl80211_ssid_bssid *sb = arg;
|
|
struct nlattr **tb = nl80211_parse(msg);
|
|
|
|
if (tb[NL80211_ATTR_MAC]) {
|
|
sb->bssid[0] = 1;
|
|
memcpy(sb->bssid + 1, nla_data(tb[NL80211_ATTR_MAC]),
|
|
sizeof(sb->bssid) - 1);
|
|
}
|
|
|
|
return NL_SKIP;
|
|
}
|
|
|
|
static int nl80211_get_ssid_bssid_cb(struct nl_msg *msg, void *arg)
|
|
{
|
|
int ielen;
|
|
unsigned char *ie;
|
|
struct nl80211_ssid_bssid *sb = arg;
|
|
struct nlattr **tb = nl80211_parse(msg);
|
|
struct nlattr *bss[NL80211_BSS_MAX + 1];
|
|
|
|
static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = {
|
|
[NL80211_BSS_INFORMATION_ELEMENTS] = { 0 },
|
|
[NL80211_BSS_STATUS] = { .type = NLA_U32 },
|
|
};
|
|
|
|
if (!tb[NL80211_ATTR_BSS] ||
|
|
nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS],
|
|
bss_policy) ||
|
|
!bss[NL80211_BSS_BSSID] ||
|
|
!bss[NL80211_BSS_STATUS] ||
|
|
!bss[NL80211_BSS_INFORMATION_ELEMENTS])
|
|
{
|
|
return NL_SKIP;
|
|
}
|
|
|
|
switch (nla_get_u32(bss[NL80211_BSS_STATUS]))
|
|
{
|
|
case NL80211_BSS_STATUS_ASSOCIATED:
|
|
case NL80211_BSS_STATUS_AUTHENTICATED:
|
|
case NL80211_BSS_STATUS_IBSS_JOINED:
|
|
|
|
if (sb->ssid)
|
|
{
|
|
ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
|
|
ielen = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
|
|
|
|
while (ielen >= 2 && ielen >= ie[1])
|
|
{
|
|
if (ie[0] == 0)
|
|
{
|
|
memcpy(sb->ssid, ie + 2, min(ie[1], IWINFO_ESSID_MAX_SIZE));
|
|
return NL_SKIP;
|
|
}
|
|
|
|
ielen -= ie[1] + 2;
|
|
ie += ie[1] + 2;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
sb->bssid[0] = 1;
|
|
memcpy(sb->bssid + 1, nla_data(bss[NL80211_BSS_BSSID]), 6);
|
|
return NL_SKIP;
|
|
}
|
|
|
|
default:
|
|
return NL_SKIP;
|
|
}
|
|
}
|
|
|
|
static int nl80211_get_ssid(const char *ifname, char *buf)
|
|
{
|
|
char *res;
|
|
struct nl80211_ssid_bssid sb = { .ssid = (unsigned char *)buf };
|
|
|
|
/* try to find ssid from scan dump results */
|
|
res = nl80211_phy2ifname(ifname);
|
|
sb.ssid[0] = 0;
|
|
|
|
nl80211_request(res ? res : ifname, NL80211_CMD_GET_SCAN, NLM_F_DUMP,
|
|
nl80211_get_ssid_bssid_cb, &sb);
|
|
|
|
/* failed, try to find from hostapd info */
|
|
if (sb.ssid[0] == 0)
|
|
nl80211_hostapd_query(ifname, "ssid", sb.ssid,
|
|
IWINFO_ESSID_MAX_SIZE + 1);
|
|
|
|
/* failed, try to obtain Mesh ID */
|
|
if (sb.ssid[0] == 0)
|
|
iwinfo_ubus_query(res ? res : ifname, "mesh_id",
|
|
sb.ssid, IWINFO_ESSID_MAX_SIZE + 1);
|
|
|
|
return (sb.ssid[0] == 0) ? -1 : 0;
|
|
}
|
|
|
|
static int nl80211_get_bssid(const char *ifname, char *buf)
|
|
{
|
|
char *res, bssid[sizeof("FF:FF:FF:FF:FF:FF\0")];
|
|
struct nl80211_ssid_bssid sb = { };
|
|
|
|
res = nl80211_phy2ifname(ifname);
|
|
|
|
/* try to obtain mac address via NL80211_CMD_GET_INTERFACE */
|
|
nl80211_request(res ? res : ifname, NL80211_CMD_GET_INTERFACE, 0,
|
|
nl80211_get_macaddr_cb, &sb);
|
|
|
|
/* failed, try to find bssid from scan dump results */
|
|
if (sb.bssid[0] == 0)
|
|
nl80211_request(res ? res : ifname,
|
|
NL80211_CMD_GET_SCAN, NLM_F_DUMP,
|
|
nl80211_get_ssid_bssid_cb, &sb);
|
|
|
|
/* failed, try to find mac from hostapd info */
|
|
if ((sb.bssid[0] == 0) &&
|
|
nl80211_hostapd_query(ifname, "bssid", bssid, sizeof(bssid)))
|
|
{
|
|
sb.bssid[0] = 1;
|
|
sb.bssid[1] = strtol(&bssid[0], NULL, 16);
|
|
sb.bssid[2] = strtol(&bssid[3], NULL, 16);
|
|
sb.bssid[3] = strtol(&bssid[6], NULL, 16);
|
|
sb.bssid[4] = strtol(&bssid[9], NULL, 16);
|
|
sb.bssid[5] = strtol(&bssid[12], NULL, 16);
|
|
sb.bssid[6] = strtol(&bssid[15], NULL, 16);
|
|
}
|
|
|
|
if (sb.bssid[0])
|
|
{
|
|
sprintf(buf, "%02X:%02X:%02X:%02X:%02X:%02X",
|
|
sb.bssid[1], sb.bssid[2], sb.bssid[3],
|
|
sb.bssid[4], sb.bssid[5], sb.bssid[6]);
|
|
|
|
return 0;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
|
|
static int nl80211_get_frequency_scan_cb(struct nl_msg *msg, void *arg)
|
|
{
|
|
int *freq = arg;
|
|
struct nlattr **attr = nl80211_parse(msg);
|
|
struct nlattr *binfo[NL80211_BSS_MAX + 1];
|
|
|
|
static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = {
|
|
[NL80211_BSS_FREQUENCY] = { .type = NLA_U32 },
|
|
[NL80211_BSS_STATUS] = { .type = NLA_U32 },
|
|
};
|
|
|
|
if (attr[NL80211_ATTR_BSS] &&
|
|
!nla_parse_nested(binfo, NL80211_BSS_MAX,
|
|
attr[NL80211_ATTR_BSS], bss_policy))
|
|
{
|
|
if (binfo[NL80211_BSS_STATUS] && binfo[NL80211_BSS_FREQUENCY])
|
|
*freq = nla_get_u32(binfo[NL80211_BSS_FREQUENCY]);
|
|
}
|
|
|
|
return NL_SKIP;
|
|
}
|
|
|
|
static int nl80211_get_frequency_info_cb(struct nl_msg *msg, void *arg)
|
|
{
|
|
int *freq = arg;
|
|
struct nlattr **tb = nl80211_parse(msg);
|
|
|
|
if (tb[NL80211_ATTR_WIPHY_FREQ])
|
|
*freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]);
|
|
|
|
return NL_SKIP;
|
|
}
|
|
|
|
static int nl80211_get_frequency(const char *ifname, int *buf)
|
|
{
|
|
char *res, channel[4], hwmode[3];
|
|
|
|
/* try to find frequency from interface info */
|
|
res = nl80211_phy2ifname(ifname);
|
|
*buf = 0;
|
|
|
|
nl80211_request(res ? res : ifname, NL80211_CMD_GET_INTERFACE, 0,
|
|
nl80211_get_frequency_info_cb, buf);
|
|
|
|
/* failed, try to find frequency from hostapd info */
|
|
if ((*buf == 0) &&
|
|
nl80211_hostapd_query(ifname, "hw_mode", hwmode, sizeof(hwmode),
|
|
"channel", channel, sizeof(channel)) == 2)
|
|
{
|
|
*buf = nl80211_channel2freq(atoi(channel), hwmode);
|
|
}
|
|
|
|
/* failed, try to find frequency from scan results */
|
|
if (*buf == 0)
|
|
{
|
|
res = nl80211_phy2ifname(ifname);
|
|
|
|
nl80211_request(res ? res : ifname, NL80211_CMD_GET_SCAN, NLM_F_DUMP,
|
|
nl80211_get_frequency_scan_cb, buf);
|
|
}
|
|
|
|
return (*buf == 0) ? -1 : 0;
|
|
}
|
|
|
|
static int nl80211_get_center_freq1_cb(struct nl_msg *msg, void *arg)
|
|
{
|
|
int *freq = arg;
|
|
struct nlattr **tb = nl80211_parse(msg);
|
|
|
|
if (tb[NL80211_ATTR_CENTER_FREQ1])
|
|
*freq = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]);
|
|
|
|
return NL_SKIP;
|
|
}
|
|
|
|
static int nl80211_get_center_freq1(const char *ifname, int *buf)
|
|
{
|
|
char *res;
|
|
|
|
/* try to find frequency from interface info */
|
|
res = nl80211_phy2ifname(ifname);
|
|
*buf = 0;
|
|
|
|
nl80211_request(res ? res : ifname, NL80211_CMD_GET_INTERFACE, 0,
|
|
nl80211_get_center_freq1_cb, buf);
|
|
|
|
return (*buf == 0) ? -1 : 0;
|
|
}
|
|
|
|
static int nl80211_get_center_freq2_cb(struct nl_msg *msg, void *arg)
|
|
{
|
|
int *freq = arg;
|
|
struct nlattr **tb = nl80211_parse(msg);
|
|
|
|
if (tb[NL80211_ATTR_CENTER_FREQ2])
|
|
*freq = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]);
|
|
|
|
return NL_SKIP;
|
|
}
|
|
|
|
static int nl80211_get_center_freq2(const char *ifname, int *buf)
|
|
{
|
|
char *res;
|
|
|
|
/* try to find frequency from interface info */
|
|
res = nl80211_phy2ifname(ifname);
|
|
*buf = 0;
|
|
|
|
nl80211_request(res ? res : ifname, NL80211_CMD_GET_INTERFACE, 0,
|
|
nl80211_get_center_freq2_cb, buf);
|
|
|
|
return (*buf == 0) ? -1 : 0;
|
|
}
|
|
|
|
static int nl80211_get_channel(const char *ifname, int *buf)
|
|
{
|
|
if (!nl80211_get_frequency(ifname, buf))
|
|
{
|
|
*buf = nl80211_freq2channel(*buf);
|
|
return 0;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
static int nl80211_get_center_chan1(const char *ifname, int *buf)
|
|
{
|
|
if (!nl80211_get_center_freq1(ifname, buf))
|
|
{
|
|
*buf = nl80211_freq2channel(*buf);
|
|
return 0;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
static int nl80211_get_center_chan2(const char *ifname, int *buf)
|
|
{
|
|
if (!nl80211_get_center_freq2(ifname, buf))
|
|
{
|
|
*buf = nl80211_freq2channel(*buf);
|
|
return 0;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
static int nl80211_get_txpower_cb(struct nl_msg *msg, void *arg)
|
|
{
|
|
int *buf = arg;
|
|
struct nlattr **tb = nl80211_parse(msg);
|
|
|
|
if (tb[NL80211_ATTR_WIPHY_TX_POWER_LEVEL])
|
|
*buf = iwinfo_mbm2dbm(nla_get_u32(tb[NL80211_ATTR_WIPHY_TX_POWER_LEVEL]));
|
|
|
|
return NL_SKIP;
|
|
}
|
|
|
|
static int nl80211_get_txpower(const char *ifname, int *buf)
|
|
{
|
|
char *res;
|
|
|
|
res = nl80211_phy2ifname(ifname);
|
|
*buf = 0;
|
|
|
|
if (nl80211_request(res ? res : ifname, NL80211_CMD_GET_INTERFACE, 0,
|
|
nl80211_get_txpower_cb, buf))
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int nl80211_fill_signal_cb(struct nl_msg *msg, void *arg)
|
|
{
|
|
int8_t dbm;
|
|
int16_t mbit;
|
|
struct nl80211_rssi_rate *rr = arg;
|
|
struct nlattr **attr = nl80211_parse(msg);
|
|
struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1];
|
|
struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1];
|
|
|
|
static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
|
|
[NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 },
|
|
[NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 },
|
|
[NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 },
|
|
[NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 },
|
|
[NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 },
|
|
[NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 },
|
|
[NL80211_STA_INFO_TX_BITRATE] = { .type = NLA_NESTED },
|
|
[NL80211_STA_INFO_LLID] = { .type = NLA_U16 },
|
|
[NL80211_STA_INFO_PLID] = { .type = NLA_U16 },
|
|
[NL80211_STA_INFO_PLINK_STATE] = { .type = NLA_U8 },
|
|
};
|
|
|
|
static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = {
|
|
[NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 },
|
|
[NL80211_RATE_INFO_MCS] = { .type = NLA_U8 },
|
|
[NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG },
|
|
[NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG },
|
|
};
|
|
|
|
if (attr[NL80211_ATTR_STA_INFO])
|
|
{
|
|
if (!nla_parse_nested(sinfo, NL80211_STA_INFO_MAX,
|
|
attr[NL80211_ATTR_STA_INFO], stats_policy))
|
|
{
|
|
if (sinfo[NL80211_STA_INFO_SIGNAL])
|
|
{
|
|
dbm = nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]);
|
|
rr->rssi = (rr->rssi * rr->rssi_samples + dbm) / (rr->rssi_samples + 1);
|
|
rr->rssi_samples++;
|
|
}
|
|
|
|
if (sinfo[NL80211_STA_INFO_TX_BITRATE])
|
|
{
|
|
if (!nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX,
|
|
sinfo[NL80211_STA_INFO_TX_BITRATE],
|
|
rate_policy))
|
|
{
|
|
if (rinfo[NL80211_RATE_INFO_BITRATE])
|
|
{
|
|
mbit = nla_get_u16(rinfo[NL80211_RATE_INFO_BITRATE]);
|
|
rr->rate = (rr->rate * rr->rate_samples + mbit) / (rr->rate_samples + 1);
|
|
rr->rate_samples++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return NL_SKIP;
|
|
}
|
|
|
|
static void nl80211_fill_signal(const char *ifname, struct nl80211_rssi_rate *r)
|
|
{
|
|
DIR *d;
|
|
struct dirent *de;
|
|
|
|
memset(r, 0, sizeof(*r));
|
|
|
|
if ((d = opendir("/sys/class/net")) != NULL)
|
|
{
|
|
while ((de = readdir(d)) != NULL)
|
|
{
|
|
if (!strncmp(de->d_name, ifname, strlen(ifname)) &&
|
|
(!de->d_name[strlen(ifname)] ||
|
|
!strncmp(&de->d_name[strlen(ifname)], ".sta", 4)))
|
|
{
|
|
nl80211_request(de->d_name, NL80211_CMD_GET_STATION,
|
|
NLM_F_DUMP, nl80211_fill_signal_cb, r);
|
|
}
|
|
}
|
|
|
|
closedir(d);
|
|
}
|
|
}
|
|
|
|
static int nl80211_get_bitrate(const char *ifname, int *buf)
|
|
{
|
|
struct nl80211_rssi_rate rr;
|
|
|
|
nl80211_fill_signal(ifname, &rr);
|
|
|
|
if (rr.rate_samples)
|
|
{
|
|
*buf = (rr.rate * 100);
|
|
return 0;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
static int nl80211_get_signal(const char *ifname, int *buf)
|
|
{
|
|
struct nl80211_rssi_rate rr;
|
|
|
|
nl80211_fill_signal(ifname, &rr);
|
|
|
|
if (rr.rssi_samples)
|
|
{
|
|
*buf = rr.rssi;
|
|
return 0;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
static int nl80211_get_noise_cb(struct nl_msg *msg, void *arg)
|
|
{
|
|
int8_t *noise = arg;
|
|
struct nlattr **tb = nl80211_parse(msg);
|
|
struct nlattr *si[NL80211_SURVEY_INFO_MAX + 1];
|
|
|
|
static struct nla_policy sp[NL80211_SURVEY_INFO_MAX + 1] = {
|
|
[NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
|
|
[NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
|
|
};
|
|
|
|
if (!tb[NL80211_ATTR_SURVEY_INFO])
|
|
return NL_SKIP;
|
|
|
|
if (nla_parse_nested(si, NL80211_SURVEY_INFO_MAX,
|
|
tb[NL80211_ATTR_SURVEY_INFO], sp))
|
|
return NL_SKIP;
|
|
|
|
if (!si[NL80211_SURVEY_INFO_NOISE])
|
|
return NL_SKIP;
|
|
|
|
if (!*noise || si[NL80211_SURVEY_INFO_IN_USE])
|
|
*noise = (int8_t)nla_get_u8(si[NL80211_SURVEY_INFO_NOISE]);
|
|
|
|
return NL_SKIP;
|
|
}
|
|
|
|
|
|
static int nl80211_get_noise(const char *ifname, int *buf)
|
|
{
|
|
int8_t noise = 0;
|
|
|
|
if (nl80211_request(ifname, NL80211_CMD_GET_SURVEY, NLM_F_DUMP,
|
|
nl80211_get_noise_cb, &noise))
|
|
goto out;
|
|
|
|
*buf = noise;
|
|
return 0;
|
|
|
|
out:
|
|
*buf = 0;
|
|
return -1;
|
|
}
|
|
|
|
static int nl80211_get_quality(const char *ifname, int *buf)
|
|
{
|
|
int signal;
|
|
|
|
if (!nl80211_get_signal(ifname, &signal))
|
|
{
|
|
/* A positive signal level is usually just a quality
|
|
* value, pass through as-is */
|
|
if (signal >= 0)
|
|
{
|
|
*buf = signal;
|
|
}
|
|
|
|
/* The cfg80211 wext compat layer assumes a signal range
|
|
* of -110 dBm to -40 dBm, the quality value is derived
|
|
* by adding 110 to the signal level */
|
|
else
|
|
{
|
|
if (signal < -110)
|
|
signal = -110;
|
|
else if (signal > -40)
|
|
signal = -40;
|
|
|
|
*buf = (signal + 110);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
static int nl80211_get_quality_max(const char *ifname, int *buf)
|
|
{
|
|
/* The cfg80211 wext compat layer assumes a maximum
|
|
* quality of 70 */
|
|
*buf = 70;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_check_wepkey(const char *key)
|
|
{
|
|
if (key && *key)
|
|
{
|
|
switch (strlen(key))
|
|
{
|
|
case 5:
|
|
case 10:
|
|
return IWINFO_CIPHER_WEP40;
|
|
|
|
case 13:
|
|
case 26:
|
|
return IWINFO_CIPHER_WEP104;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct {
|
|
const char *match;
|
|
int version;
|
|
int suite;
|
|
} wpa_key_mgmt_strings[] = {
|
|
{ "IEEE 802.1X/EAP", 0, IWINFO_KMGMT_8021x },
|
|
{ "EAP-SUITE-B-192", 4, IWINFO_KMGMT_8021x },
|
|
{ "EAP-SUITE-B", 4, IWINFO_KMGMT_8021x },
|
|
{ "EAP-SHA256", 0, IWINFO_KMGMT_8021x },
|
|
{ "PSK-SHA256", 0, IWINFO_KMGMT_PSK },
|
|
{ "NONE", 0, IWINFO_KMGMT_NONE },
|
|
{ "None", 0, IWINFO_KMGMT_NONE },
|
|
{ "PSK", 0, IWINFO_KMGMT_PSK },
|
|
{ "EAP", 0, IWINFO_KMGMT_8021x },
|
|
{ "SAE", 4, IWINFO_KMGMT_SAE },
|
|
{ "OWE", 4, IWINFO_KMGMT_OWE }
|
|
};
|
|
|
|
static void parse_wpa_suites(const char *str, int defversion,
|
|
uint8_t *versions, uint8_t *suites)
|
|
{
|
|
size_t l;
|
|
int i, version;
|
|
const char *p, *q, *m, *sep = " \t\n,-+/";
|
|
|
|
for (p = str; *p; )
|
|
{
|
|
q = p;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(wpa_key_mgmt_strings); i++)
|
|
{
|
|
m = wpa_key_mgmt_strings[i].match;
|
|
l = strlen(m);
|
|
|
|
if (!strncmp(q, m, l) && (!q[l] || strchr(sep, q[l])))
|
|
{
|
|
if (wpa_key_mgmt_strings[i].version != 0)
|
|
version = wpa_key_mgmt_strings[i].version;
|
|
else
|
|
version = defversion;
|
|
|
|
*versions |= version;
|
|
*suites |= wpa_key_mgmt_strings[i].suite;
|
|
|
|
q += l;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (q == p)
|
|
q += strcspn(q, sep);
|
|
|
|
p = q + strspn(q, sep);
|
|
}
|
|
}
|
|
|
|
static struct {
|
|
const char *match;
|
|
int cipher;
|
|
} wpa_cipher_strings[] = {
|
|
{ "WEP-104", IWINFO_CIPHER_WEP104 },
|
|
{ "WEP-40", IWINFO_CIPHER_WEP40 },
|
|
{ "NONE", IWINFO_CIPHER_NONE },
|
|
{ "TKIP", IWINFO_CIPHER_TKIP },
|
|
{ "CCMP", IWINFO_CIPHER_CCMP },
|
|
{ "GCMP", IWINFO_CIPHER_GCMP }
|
|
};
|
|
|
|
static void parse_wpa_ciphers(const char *str, uint16_t *ciphers)
|
|
{
|
|
int i;
|
|
size_t l;
|
|
const char *m, *p, *q, *sep = " \t\n,-+/";
|
|
|
|
for (p = str; *p; )
|
|
{
|
|
q = p;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(wpa_cipher_strings); i++)
|
|
{
|
|
m = wpa_cipher_strings[i].match;
|
|
l = strlen(m);
|
|
|
|
if (!strncmp(q, m, l) && (!q[l] || strchr(sep, q[l])))
|
|
{
|
|
*ciphers |= wpa_cipher_strings[i].cipher;
|
|
|
|
q += l;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (q == p)
|
|
q += strcspn(q, sep);
|
|
|
|
p = q + strspn(q, sep);
|
|
}
|
|
}
|
|
|
|
static int nl80211_get_encryption(const char *ifname, char *buf)
|
|
{
|
|
char *p;
|
|
int opmode;
|
|
uint8_t wpa_version = 0;
|
|
char wpa[2], wpa_key_mgmt[64], wpa_pairwise[16], wpa_groupwise[16];
|
|
char auth_algs[2], wep_key0[27], wep_key1[27], wep_key2[27], wep_key3[27];
|
|
char mode[16];
|
|
|
|
struct iwinfo_crypto_entry *c = (struct iwinfo_crypto_entry *)buf;
|
|
|
|
/* WPA supplicant */
|
|
if (nl80211_wpactl_query(ifname,
|
|
"pairwise_cipher", wpa_pairwise, sizeof(wpa_pairwise),
|
|
"group_cipher", wpa_groupwise, sizeof(wpa_groupwise),
|
|
"key_mgmt", wpa_key_mgmt, sizeof(wpa_key_mgmt),
|
|
"mode", mode, sizeof(mode)))
|
|
{
|
|
/* WEP or Open */
|
|
if (!strcmp(wpa_key_mgmt, "NONE"))
|
|
{
|
|
parse_wpa_ciphers(wpa_pairwise, &c->pair_ciphers);
|
|
parse_wpa_ciphers(wpa_groupwise, &c->group_ciphers);
|
|
|
|
if (c->pair_ciphers != 0 && c->pair_ciphers != IWINFO_CIPHER_NONE) {
|
|
c->enabled = 1;
|
|
c->auth_suites = IWINFO_KMGMT_NONE;
|
|
c->auth_algs = IWINFO_AUTH_OPEN | IWINFO_AUTH_SHARED;
|
|
}
|
|
else {
|
|
c->pair_ciphers = 0;
|
|
c->group_ciphers = 0;
|
|
}
|
|
}
|
|
|
|
/* MESH with SAE */
|
|
else if (!strcmp(mode, "mesh") && !strcmp(wpa_key_mgmt, "UNKNOWN"))
|
|
{
|
|
c->enabled = 1;
|
|
c->wpa_version = 4;
|
|
c->auth_suites = IWINFO_KMGMT_SAE;
|
|
c->pair_ciphers = IWINFO_CIPHER_CCMP;
|
|
c->group_ciphers = IWINFO_CIPHER_CCMP;
|
|
}
|
|
|
|
/* WPA */
|
|
else
|
|
{
|
|
parse_wpa_ciphers(wpa_pairwise, &c->pair_ciphers);
|
|
parse_wpa_ciphers(wpa_groupwise, &c->group_ciphers);
|
|
|
|
p = wpa_key_mgmt;
|
|
|
|
if (!strncmp(p, "WPA2-", 5) || !strncmp(p, "WPA2/", 5))
|
|
{
|
|
p += 5;
|
|
wpa_version = 2;
|
|
}
|
|
else if (!strncmp(p, "WPA-", 4))
|
|
{
|
|
p += 4;
|
|
wpa_version = 1;
|
|
}
|
|
|
|
parse_wpa_suites(p, wpa_version, &c->wpa_version, &c->auth_suites);
|
|
|
|
c->enabled = !!(c->wpa_version && c->auth_suites);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Hostapd */
|
|
else if (nl80211_hostapd_query(ifname,
|
|
"wpa", wpa, sizeof(wpa),
|
|
"wpa_key_mgmt", wpa_key_mgmt, sizeof(wpa_key_mgmt),
|
|
"wpa_pairwise", wpa_pairwise, sizeof(wpa_pairwise),
|
|
"auth_algs", auth_algs, sizeof(auth_algs),
|
|
"wep_key0", wep_key0, sizeof(wep_key0),
|
|
"wep_key1", wep_key1, sizeof(wep_key1),
|
|
"wep_key2", wep_key2, sizeof(wep_key2),
|
|
"wep_key3", wep_key3, sizeof(wep_key3)))
|
|
{
|
|
c->wpa_version = 0;
|
|
|
|
if (wpa_key_mgmt[0])
|
|
{
|
|
for (p = strtok(wpa_key_mgmt, " \t"); p != NULL; p = strtok(NULL, " \t"))
|
|
{
|
|
if (!strncmp(p, "WPA-", 4))
|
|
p += 4;
|
|
|
|
parse_wpa_suites(p, atoi(wpa), &c->wpa_version, &c->auth_suites);
|
|
}
|
|
|
|
c->enabled = c->wpa_version ? 1 : 0;
|
|
}
|
|
|
|
if (wpa_pairwise[0])
|
|
parse_wpa_ciphers(wpa_pairwise, &c->pair_ciphers);
|
|
|
|
if (auth_algs[0])
|
|
{
|
|
switch (atoi(auth_algs))
|
|
{
|
|
case 1:
|
|
c->auth_algs |= IWINFO_AUTH_OPEN;
|
|
break;
|
|
|
|
case 2:
|
|
c->auth_algs |= IWINFO_AUTH_SHARED;
|
|
break;
|
|
|
|
case 3:
|
|
c->auth_algs |= IWINFO_AUTH_OPEN;
|
|
c->auth_algs |= IWINFO_AUTH_SHARED;
|
|
break;
|
|
}
|
|
|
|
c->pair_ciphers |= nl80211_check_wepkey(wep_key0);
|
|
c->pair_ciphers |= nl80211_check_wepkey(wep_key1);
|
|
c->pair_ciphers |= nl80211_check_wepkey(wep_key2);
|
|
c->pair_ciphers |= nl80211_check_wepkey(wep_key3);
|
|
|
|
c->enabled = (c->auth_algs && c->pair_ciphers) ? 1 : 0;
|
|
}
|
|
|
|
c->group_ciphers = c->pair_ciphers;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Ad-Hoc or Mesh interfaces without wpa_supplicant are open */
|
|
else if (!nl80211_get_mode(ifname, &opmode) &&
|
|
(opmode == IWINFO_OPMODE_ADHOC ||
|
|
opmode == IWINFO_OPMODE_MESHPOINT))
|
|
{
|
|
c->enabled = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
return -1;
|
|
}
|
|
|
|
static int nl80211_get_phyname(const char *ifname, char *buf)
|
|
{
|
|
const char *name;
|
|
|
|
name = nl80211_ifname2phy(ifname);
|
|
|
|
if (name)
|
|
{
|
|
strcpy(buf, name);
|
|
return 0;
|
|
}
|
|
else if ((name = nl80211_phy2ifname(ifname)) != NULL)
|
|
{
|
|
name = nl80211_ifname2phy(name);
|
|
|
|
if (name)
|
|
{
|
|
strcpy(buf, ifname);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
|
|
static void nl80211_parse_rateinfo(struct nlattr **ri,
|
|
struct iwinfo_rate_entry *re)
|
|
{
|
|
if (ri[NL80211_RATE_INFO_BITRATE32])
|
|
re->rate = nla_get_u32(ri[NL80211_RATE_INFO_BITRATE32]) * 100;
|
|
else if (ri[NL80211_RATE_INFO_BITRATE])
|
|
re->rate = nla_get_u16(ri[NL80211_RATE_INFO_BITRATE]) * 100;
|
|
|
|
if (ri[NL80211_RATE_INFO_HE_MCS])
|
|
{
|
|
re->is_he = 1;
|
|
re->mcs = nla_get_u8(ri[NL80211_RATE_INFO_HE_MCS]);
|
|
|
|
if (ri[NL80211_RATE_INFO_HE_NSS])
|
|
re->nss = nla_get_u8(ri[NL80211_RATE_INFO_HE_NSS]);
|
|
if (ri[NL80211_RATE_INFO_HE_GI])
|
|
re->he_gi = nla_get_u8(ri[NL80211_RATE_INFO_HE_GI]);
|
|
if (ri[NL80211_RATE_INFO_HE_DCM])
|
|
re->he_dcm = nla_get_u8(ri[NL80211_RATE_INFO_HE_DCM]);
|
|
}
|
|
else if (ri[NL80211_RATE_INFO_VHT_MCS])
|
|
{
|
|
re->is_vht = 1;
|
|
re->mcs = nla_get_u8(ri[NL80211_RATE_INFO_VHT_MCS]);
|
|
|
|
if (ri[NL80211_RATE_INFO_VHT_NSS])
|
|
re->nss = nla_get_u8(ri[NL80211_RATE_INFO_VHT_NSS]);
|
|
}
|
|
else if (ri[NL80211_RATE_INFO_MCS])
|
|
{
|
|
re->is_ht = 1;
|
|
re->mcs = nla_get_u8(ri[NL80211_RATE_INFO_MCS]);
|
|
}
|
|
|
|
if (ri[NL80211_RATE_INFO_5_MHZ_WIDTH])
|
|
re->mhz = 5;
|
|
else if (ri[NL80211_RATE_INFO_10_MHZ_WIDTH])
|
|
re->mhz = 10;
|
|
else if (ri[NL80211_RATE_INFO_40_MHZ_WIDTH])
|
|
re->mhz = 40;
|
|
else if (ri[NL80211_RATE_INFO_80_MHZ_WIDTH])
|
|
re->mhz = 80;
|
|
else if (ri[NL80211_RATE_INFO_80P80_MHZ_WIDTH] ||
|
|
ri[NL80211_RATE_INFO_160_MHZ_WIDTH])
|
|
re->mhz = 160;
|
|
else
|
|
re->mhz = 20;
|
|
|
|
if (ri[NL80211_RATE_INFO_SHORT_GI])
|
|
re->is_short_gi = 1;
|
|
|
|
re->is_40mhz = (re->mhz == 40);
|
|
}
|
|
|
|
static int nl80211_get_survey_cb(struct nl_msg *msg, void *arg)
|
|
{
|
|
struct nl80211_array_buf *arr = arg;
|
|
struct iwinfo_survey_entry *e = arr->buf;
|
|
struct nlattr **attr = nl80211_parse(msg);
|
|
struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1];
|
|
int rc;
|
|
|
|
static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = {
|
|
[NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
|
|
[NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
|
|
[NL80211_SURVEY_INFO_TIME] = { .type = NLA_U64 },
|
|
[NL80211_SURVEY_INFO_TIME_BUSY] = { .type = NLA_U64 },
|
|
[NL80211_SURVEY_INFO_TIME_EXT_BUSY] = { .type = NLA_U64 },
|
|
[NL80211_SURVEY_INFO_TIME_RX] = { .type = NLA_U64 },
|
|
[NL80211_SURVEY_INFO_TIME_TX] = { .type = NLA_U64 },
|
|
};
|
|
|
|
rc = nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX,
|
|
attr[NL80211_ATTR_SURVEY_INFO],
|
|
survey_policy);
|
|
if (rc)
|
|
return NL_SKIP;
|
|
|
|
/* advance to end of array */
|
|
e += arr->count;
|
|
memset(e, 0, sizeof(*e));
|
|
|
|
if (sinfo[NL80211_SURVEY_INFO_FREQUENCY])
|
|
e->mhz = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]);
|
|
|
|
if (sinfo[NL80211_SURVEY_INFO_NOISE])
|
|
e->noise = nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]);
|
|
|
|
if (sinfo[NL80211_SURVEY_INFO_TIME])
|
|
e->active_time = nla_get_u64(sinfo[NL80211_SURVEY_INFO_TIME]);
|
|
|
|
if (sinfo[NL80211_SURVEY_INFO_TIME_BUSY])
|
|
e->busy_time = nla_get_u64(sinfo[NL80211_SURVEY_INFO_TIME_BUSY]);
|
|
|
|
if (sinfo[NL80211_SURVEY_INFO_TIME_EXT_BUSY])
|
|
e->busy_time_ext = nla_get_u64(sinfo[NL80211_SURVEY_INFO_TIME_EXT_BUSY]);
|
|
|
|
if (sinfo[NL80211_SURVEY_INFO_TIME_RX])
|
|
e->rxtime = nla_get_u64(sinfo[NL80211_SURVEY_INFO_TIME_RX]);
|
|
|
|
if (sinfo[NL80211_SURVEY_INFO_TIME_TX])
|
|
e->txtime = nla_get_u64(sinfo[NL80211_SURVEY_INFO_TIME_TX]);
|
|
|
|
arr->count++;
|
|
return NL_SKIP;
|
|
}
|
|
|
|
|
|
static void plink_state_to_str(char *dst, unsigned state)
|
|
{
|
|
switch (state) {
|
|
case NL80211_PLINK_LISTEN:
|
|
strcpy(dst, "LISTEN");
|
|
break;
|
|
case NL80211_PLINK_OPN_SNT:
|
|
strcpy(dst, "OPN_SNT");
|
|
break;
|
|
case NL80211_PLINK_OPN_RCVD:
|
|
strcpy(dst, "OPN_RCVD");
|
|
break;
|
|
case NL80211_PLINK_CNF_RCVD:
|
|
strcpy(dst, "CNF_RCVD");
|
|
break;
|
|
case NL80211_PLINK_ESTAB:
|
|
strcpy(dst, "ESTAB");
|
|
break;
|
|
case NL80211_PLINK_HOLDING:
|
|
strcpy(dst, "HOLDING");
|
|
break;
|
|
case NL80211_PLINK_BLOCKED:
|
|
strcpy(dst, "BLOCKED");
|
|
break;
|
|
default:
|
|
strcpy(dst, "UNKNOWN");
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void power_mode_to_str(char *dst, struct nlattr *a)
|
|
{
|
|
enum nl80211_mesh_power_mode pm = nla_get_u32(a);
|
|
|
|
switch (pm) {
|
|
case NL80211_MESH_POWER_ACTIVE:
|
|
strcpy(dst, "ACTIVE");
|
|
break;
|
|
case NL80211_MESH_POWER_LIGHT_SLEEP:
|
|
strcpy(dst, "LIGHT SLEEP");
|
|
break;
|
|
case NL80211_MESH_POWER_DEEP_SLEEP:
|
|
strcpy(dst, "DEEP SLEEP");
|
|
break;
|
|
default:
|
|
strcpy(dst, "UNKNOWN");
|
|
break;
|
|
}
|
|
}
|
|
|
|
static int nl80211_get_assoclist_cb(struct nl_msg *msg, void *arg)
|
|
{
|
|
struct nl80211_array_buf *arr = arg;
|
|
struct iwinfo_assoclist_entry *e = arr->buf;
|
|
struct nlattr **attr = nl80211_parse(msg);
|
|
struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1];
|
|
struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1];
|
|
struct nl80211_sta_flag_update *sta_flags;
|
|
|
|
static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
|
|
[NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 },
|
|
[NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 },
|
|
[NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 },
|
|
[NL80211_STA_INFO_RX_BITRATE] = { .type = NLA_NESTED },
|
|
[NL80211_STA_INFO_TX_BITRATE] = { .type = NLA_NESTED },
|
|
[NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 },
|
|
[NL80211_STA_INFO_SIGNAL_AVG] = { .type = NLA_U8 },
|
|
[NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 },
|
|
[NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 },
|
|
[NL80211_STA_INFO_TX_RETRIES] = { .type = NLA_U32 },
|
|
[NL80211_STA_INFO_TX_FAILED] = { .type = NLA_U32 },
|
|
[NL80211_STA_INFO_CONNECTED_TIME]= { .type = NLA_U32 },
|
|
[NL80211_STA_INFO_RX_DROP_MISC] = { .type = NLA_U64 },
|
|
[NL80211_STA_INFO_T_OFFSET] = { .type = NLA_U64 },
|
|
[NL80211_STA_INFO_STA_FLAGS] =
|
|
{ .minlen = sizeof(struct nl80211_sta_flag_update) },
|
|
[NL80211_STA_INFO_EXPECTED_THROUGHPUT] = { .type = NLA_U32 },
|
|
/* mesh */
|
|
[NL80211_STA_INFO_LLID] = { .type = NLA_U16 },
|
|
[NL80211_STA_INFO_PLID] = { .type = NLA_U16 },
|
|
[NL80211_STA_INFO_PLINK_STATE] = { .type = NLA_U8 },
|
|
[NL80211_STA_INFO_LOCAL_PM] = { .type = NLA_U32 },
|
|
[NL80211_STA_INFO_PEER_PM] = { .type = NLA_U32 },
|
|
[NL80211_STA_INFO_NONPEER_PM] = { .type = NLA_U32 },
|
|
};
|
|
|
|
static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = {
|
|
[NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 },
|
|
[NL80211_RATE_INFO_MCS] = { .type = NLA_U8 },
|
|
[NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG },
|
|
[NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG },
|
|
};
|
|
|
|
/* advance to end of array */
|
|
e += arr->count;
|
|
memset(e, 0, sizeof(*e));
|
|
|
|
if (attr[NL80211_ATTR_MAC])
|
|
memcpy(e->mac, nla_data(attr[NL80211_ATTR_MAC]), 6);
|
|
|
|
if (attr[NL80211_ATTR_STA_INFO] &&
|
|
!nla_parse_nested(sinfo, NL80211_STA_INFO_MAX,
|
|
attr[NL80211_ATTR_STA_INFO], stats_policy))
|
|
{
|
|
if (sinfo[NL80211_STA_INFO_SIGNAL])
|
|
e->signal = nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]);
|
|
|
|
if (sinfo[NL80211_STA_INFO_SIGNAL_AVG])
|
|
e->signal_avg = nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL_AVG]);
|
|
|
|
if (sinfo[NL80211_STA_INFO_INACTIVE_TIME])
|
|
e->inactive = nla_get_u32(sinfo[NL80211_STA_INFO_INACTIVE_TIME]);
|
|
|
|
if (sinfo[NL80211_STA_INFO_CONNECTED_TIME])
|
|
e->connected_time = nla_get_u32(sinfo[NL80211_STA_INFO_CONNECTED_TIME]);
|
|
|
|
if (sinfo[NL80211_STA_INFO_RX_PACKETS])
|
|
e->rx_packets = nla_get_u32(sinfo[NL80211_STA_INFO_RX_PACKETS]);
|
|
|
|
if (sinfo[NL80211_STA_INFO_TX_PACKETS])
|
|
e->tx_packets = nla_get_u32(sinfo[NL80211_STA_INFO_TX_PACKETS]);
|
|
|
|
if (sinfo[NL80211_STA_INFO_RX_BITRATE] &&
|
|
!nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX,
|
|
sinfo[NL80211_STA_INFO_RX_BITRATE], rate_policy))
|
|
nl80211_parse_rateinfo(rinfo, &e->rx_rate);
|
|
|
|
if (sinfo[NL80211_STA_INFO_TX_BITRATE] &&
|
|
!nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX,
|
|
sinfo[NL80211_STA_INFO_TX_BITRATE], rate_policy))
|
|
nl80211_parse_rateinfo(rinfo, &e->tx_rate);
|
|
|
|
if (sinfo[NL80211_STA_INFO_RX_BYTES])
|
|
e->rx_bytes = nla_get_u32(sinfo[NL80211_STA_INFO_RX_BYTES]);
|
|
|
|
if (sinfo[NL80211_STA_INFO_TX_BYTES])
|
|
e->tx_bytes = nla_get_u32(sinfo[NL80211_STA_INFO_TX_BYTES]);
|
|
|
|
if (sinfo[NL80211_STA_INFO_TX_RETRIES])
|
|
e->tx_retries = nla_get_u32(sinfo[NL80211_STA_INFO_TX_RETRIES]);
|
|
|
|
if (sinfo[NL80211_STA_INFO_TX_FAILED])
|
|
e->tx_failed = nla_get_u32(sinfo[NL80211_STA_INFO_TX_FAILED]);
|
|
|
|
if (sinfo[NL80211_STA_INFO_T_OFFSET])
|
|
e->t_offset = nla_get_u64(sinfo[NL80211_STA_INFO_T_OFFSET]);
|
|
|
|
if (sinfo[NL80211_STA_INFO_RX_DROP_MISC])
|
|
e->rx_drop_misc = nla_get_u64(sinfo[NL80211_STA_INFO_RX_DROP_MISC]);
|
|
|
|
if (sinfo[NL80211_STA_INFO_EXPECTED_THROUGHPUT])
|
|
e->thr = nla_get_u32(sinfo[NL80211_STA_INFO_EXPECTED_THROUGHPUT]);
|
|
|
|
/* mesh */
|
|
if (sinfo[NL80211_STA_INFO_LLID])
|
|
e->llid = nla_get_u16(sinfo[NL80211_STA_INFO_LLID]);
|
|
|
|
if (sinfo[NL80211_STA_INFO_PLID])
|
|
e->plid = nla_get_u16(sinfo[NL80211_STA_INFO_PLID]);
|
|
|
|
if (sinfo[NL80211_STA_INFO_PLINK_STATE])
|
|
plink_state_to_str(e->plink_state,
|
|
nla_get_u8(sinfo[NL80211_STA_INFO_PLINK_STATE]));
|
|
|
|
if (sinfo[NL80211_STA_INFO_LOCAL_PM])
|
|
power_mode_to_str(e->local_ps, sinfo[NL80211_STA_INFO_LOCAL_PM]);
|
|
if (sinfo[NL80211_STA_INFO_PEER_PM])
|
|
power_mode_to_str(e->peer_ps, sinfo[NL80211_STA_INFO_PEER_PM]);
|
|
if (sinfo[NL80211_STA_INFO_NONPEER_PM])
|
|
power_mode_to_str(e->nonpeer_ps, sinfo[NL80211_STA_INFO_NONPEER_PM]);
|
|
|
|
/* Station flags */
|
|
if (sinfo[NL80211_STA_INFO_STA_FLAGS])
|
|
{
|
|
sta_flags = (struct nl80211_sta_flag_update *)
|
|
nla_data(sinfo[NL80211_STA_INFO_STA_FLAGS]);
|
|
|
|
if (sta_flags->mask & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
|
|
sta_flags->set & BIT(NL80211_STA_FLAG_AUTHORIZED))
|
|
e->is_authorized = 1;
|
|
|
|
if (sta_flags->mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
|
|
sta_flags->set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
|
|
e->is_authenticated = 1;
|
|
|
|
if (sta_flags->mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) &&
|
|
sta_flags->set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
|
|
e->is_preamble_short = 1;
|
|
|
|
if (sta_flags->mask & BIT(NL80211_STA_FLAG_WME) &&
|
|
sta_flags->set & BIT(NL80211_STA_FLAG_WME))
|
|
e->is_wme = 1;
|
|
|
|
if (sta_flags->mask & BIT(NL80211_STA_FLAG_MFP) &&
|
|
sta_flags->set & BIT(NL80211_STA_FLAG_MFP))
|
|
e->is_mfp = 1;
|
|
|
|
if (sta_flags->mask & BIT(NL80211_STA_FLAG_TDLS_PEER) &&
|
|
sta_flags->set & BIT(NL80211_STA_FLAG_TDLS_PEER))
|
|
e->is_tdls = 1;
|
|
}
|
|
}
|
|
|
|
e->noise = 0; /* filled in by caller */
|
|
arr->count++;
|
|
|
|
return NL_SKIP;
|
|
}
|
|
|
|
static int nl80211_get_survey(const char *ifname, char *buf, int *len)
|
|
{
|
|
struct nl80211_array_buf arr = { .buf = buf, .count = 0 };
|
|
int rc;
|
|
|
|
rc = nl80211_request(ifname, NL80211_CMD_GET_SURVEY,
|
|
NLM_F_DUMP, nl80211_get_survey_cb, &arr);
|
|
if (!rc)
|
|
*len = (arr.count * sizeof(struct iwinfo_survey_entry));
|
|
else
|
|
*len = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_get_assoclist(const char *ifname, char *buf, int *len)
|
|
{
|
|
DIR *d;
|
|
int i, noise = 0;
|
|
struct dirent *de;
|
|
struct nl80211_array_buf arr = { .buf = buf, .count = 0 };
|
|
struct iwinfo_assoclist_entry *e;
|
|
|
|
if ((d = opendir("/sys/class/net")) != NULL)
|
|
{
|
|
while ((de = readdir(d)) != NULL)
|
|
{
|
|
if (!strncmp(de->d_name, ifname, strlen(ifname)) &&
|
|
(!de->d_name[strlen(ifname)] ||
|
|
!strncmp(&de->d_name[strlen(ifname)], ".sta", 4)))
|
|
{
|
|
nl80211_request(de->d_name, NL80211_CMD_GET_STATION,
|
|
NLM_F_DUMP, nl80211_get_assoclist_cb, &arr);
|
|
}
|
|
}
|
|
|
|
closedir(d);
|
|
|
|
if (!nl80211_get_noise(ifname, &noise))
|
|
for (i = 0, e = arr.buf; i < arr.count; i++, e++)
|
|
e->noise = noise;
|
|
|
|
*len = (arr.count * sizeof(struct iwinfo_assoclist_entry));
|
|
return 0;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
static int nl80211_get_txpwrlist_cb(struct nl_msg *msg, void *arg)
|
|
{
|
|
int *dbm_max = arg;
|
|
int ch_cur, ch_cmp, bands_remain, freqs_remain;
|
|
|
|
struct nlattr **attr = nl80211_parse(msg);
|
|
struct nlattr *bands[NL80211_BAND_ATTR_MAX + 1];
|
|
struct nlattr *freqs[NL80211_FREQUENCY_ATTR_MAX + 1];
|
|
struct nlattr *band, *freq;
|
|
|
|
static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
|
|
[NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
|
|
[NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
|
|
[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG },
|
|
[NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG },
|
|
[NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
|
|
[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
|
|
};
|
|
|
|
ch_cur = *dbm_max; /* value int* is initialized with channel by caller */
|
|
*dbm_max = -1;
|
|
|
|
nla_for_each_nested(band, attr[NL80211_ATTR_WIPHY_BANDS], bands_remain)
|
|
{
|
|
nla_parse(bands, NL80211_BAND_ATTR_MAX, nla_data(band),
|
|
nla_len(band), NULL);
|
|
|
|
nla_for_each_nested(freq, bands[NL80211_BAND_ATTR_FREQS], freqs_remain)
|
|
{
|
|
nla_parse(freqs, NL80211_FREQUENCY_ATTR_MAX,
|
|
nla_data(freq), nla_len(freq), freq_policy);
|
|
|
|
ch_cmp = nl80211_freq2channel(nla_get_u32(
|
|
freqs[NL80211_FREQUENCY_ATTR_FREQ]));
|
|
|
|
if ((!ch_cur || (ch_cmp == ch_cur)) &&
|
|
freqs[NL80211_FREQUENCY_ATTR_MAX_TX_POWER])
|
|
{
|
|
*dbm_max = (int)(0.01 * nla_get_u32(
|
|
freqs[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]));
|
|
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
return NL_SKIP;
|
|
}
|
|
|
|
static int nl80211_get_txpwrlist(const char *ifname, char *buf, int *len)
|
|
{
|
|
int err, ch_cur;
|
|
int dbm_max = -1, dbm_cur, dbm_cnt;
|
|
struct nl80211_msg_conveyor *req;
|
|
struct iwinfo_txpwrlist_entry entry;
|
|
|
|
if (nl80211_get_channel(ifname, &ch_cur))
|
|
ch_cur = 0;
|
|
|
|
/* initialize the value pointer with channel for callback */
|
|
dbm_max = ch_cur;
|
|
|
|
err = nl80211_request(ifname, NL80211_CMD_GET_WIPHY, 0,
|
|
nl80211_get_txpwrlist_cb, &dbm_max);
|
|
|
|
if (!err)
|
|
{
|
|
for (dbm_cur = 0, dbm_cnt = 0;
|
|
dbm_cur < dbm_max;
|
|
dbm_cur++, dbm_cnt++)
|
|
{
|
|
entry.dbm = dbm_cur;
|
|
entry.mw = iwinfo_dbm2mw(dbm_cur);
|
|
|
|
memcpy(&buf[dbm_cnt * sizeof(entry)], &entry, sizeof(entry));
|
|
}
|
|
|
|
entry.dbm = dbm_max;
|
|
entry.mw = iwinfo_dbm2mw(dbm_max);
|
|
|
|
memcpy(&buf[dbm_cnt * sizeof(entry)], &entry, sizeof(entry));
|
|
dbm_cnt++;
|
|
|
|
*len = dbm_cnt * sizeof(entry);
|
|
return 0;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
static void nl80211_get_scancrypto(char *spec, struct iwinfo_crypto_entry *c)
|
|
{
|
|
int wpa_version = 0;
|
|
char *p, *q, *proto, *suites;
|
|
|
|
c->enabled = 0;
|
|
|
|
for (p = strtok_r(spec, "[]", &q); p; p = strtok_r(NULL, "[]", &q)) {
|
|
if (!strcmp(p, "WEP")) {
|
|
c->enabled = 1;
|
|
c->auth_suites = IWINFO_KMGMT_NONE;
|
|
c->auth_algs = IWINFO_AUTH_OPEN | IWINFO_AUTH_SHARED;
|
|
c->pair_ciphers = IWINFO_CIPHER_WEP40 | IWINFO_CIPHER_WEP104;
|
|
break;
|
|
}
|
|
|
|
proto = strtok(p, "-");
|
|
suites = strtok(NULL, "]");
|
|
|
|
if (!proto || !suites)
|
|
continue;
|
|
|
|
if (!strcmp(proto, "WPA2") || !strcmp(proto, "RSN"))
|
|
wpa_version = 2;
|
|
else if (!strcmp(proto, "WPA"))
|
|
wpa_version = 1;
|
|
else
|
|
continue;
|
|
|
|
c->enabled = 1;
|
|
|
|
parse_wpa_suites(suites, wpa_version, &c->wpa_version, &c->auth_suites);
|
|
parse_wpa_ciphers(suites, &c->pair_ciphers);
|
|
}
|
|
}
|
|
|
|
|
|
struct nl80211_scanlist {
|
|
struct iwinfo_scanlist_entry *e;
|
|
int len;
|
|
};
|
|
|
|
|
|
static void nl80211_get_scanlist_ie(struct nlattr **bss,
|
|
struct iwinfo_scanlist_entry *e)
|
|
{
|
|
int ielen = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
|
|
unsigned char *ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
|
|
static unsigned char ms_oui[3] = { 0x00, 0x50, 0xf2 };
|
|
int len;
|
|
|
|
while (ielen >= 2 && ielen >= ie[1])
|
|
{
|
|
switch (ie[0])
|
|
{
|
|
case 0: /* SSID */
|
|
case 114: /* Mesh ID */
|
|
if (e->ssid[0] == 0) {
|
|
len = min(ie[1], IWINFO_ESSID_MAX_SIZE);
|
|
memcpy(e->ssid, ie + 2, len);
|
|
e->ssid[len] = 0;
|
|
}
|
|
break;
|
|
|
|
case 48: /* RSN */
|
|
iwinfo_parse_rsn(&e->crypto, ie + 2, ie[1],
|
|
IWINFO_CIPHER_CCMP, IWINFO_KMGMT_8021x);
|
|
break;
|
|
|
|
case 221: /* Vendor */
|
|
if (ie[1] >= 4 && !memcmp(ie + 2, ms_oui, 3) && ie[5] == 1)
|
|
iwinfo_parse_rsn(&e->crypto, ie + 6, ie[1] - 4,
|
|
IWINFO_CIPHER_TKIP, IWINFO_KMGMT_PSK);
|
|
break;
|
|
case 61: /* HT oeration */
|
|
if (ie[1] >= 3) {
|
|
e->ht_chan_info.primary_chan = ie[2];
|
|
e->ht_chan_info.secondary_chan_off = ie[3] & 0x3;
|
|
e->ht_chan_info.chan_width = (ie[4] & 0x4)>>2;
|
|
}
|
|
break;
|
|
case 192: /* VHT operation */
|
|
if (ie[1] >= 3) {
|
|
e->vht_chan_info.chan_width = ie[2];
|
|
e->vht_chan_info.center_chan_1 = ie[3];
|
|
e->vht_chan_info.center_chan_2 = ie[4];
|
|
}
|
|
break;
|
|
}
|
|
|
|
ielen -= ie[1] + 2;
|
|
ie += ie[1] + 2;
|
|
}
|
|
}
|
|
|
|
static int nl80211_get_scanlist_cb(struct nl_msg *msg, void *arg)
|
|
{
|
|
int8_t rssi;
|
|
uint16_t caps;
|
|
|
|
struct nl80211_scanlist *sl = arg;
|
|
struct nlattr **tb = nl80211_parse(msg);
|
|
struct nlattr *bss[NL80211_BSS_MAX + 1];
|
|
|
|
static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = {
|
|
[NL80211_BSS_TSF] = { .type = NLA_U64 },
|
|
[NL80211_BSS_FREQUENCY] = { .type = NLA_U32 },
|
|
[NL80211_BSS_BSSID] = { 0 },
|
|
[NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 },
|
|
[NL80211_BSS_CAPABILITY] = { .type = NLA_U16 },
|
|
[NL80211_BSS_INFORMATION_ELEMENTS] = { 0 },
|
|
[NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 },
|
|
[NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 },
|
|
[NL80211_BSS_STATUS] = { .type = NLA_U32 },
|
|
[NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 },
|
|
[NL80211_BSS_BEACON_IES] = { 0 },
|
|
};
|
|
|
|
if (!tb[NL80211_ATTR_BSS] ||
|
|
nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS],
|
|
bss_policy) ||
|
|
!bss[NL80211_BSS_BSSID])
|
|
{
|
|
return NL_SKIP;
|
|
}
|
|
|
|
if (bss[NL80211_BSS_CAPABILITY])
|
|
caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]);
|
|
else
|
|
caps = 0;
|
|
|
|
memset(sl->e, 0, sizeof(*sl->e));
|
|
memcpy(sl->e->mac, nla_data(bss[NL80211_BSS_BSSID]), 6);
|
|
|
|
if (caps & (1<<1))
|
|
sl->e->mode = IWINFO_OPMODE_ADHOC;
|
|
else if (caps & (1<<0))
|
|
sl->e->mode = IWINFO_OPMODE_MASTER;
|
|
else
|
|
sl->e->mode = IWINFO_OPMODE_MESHPOINT;
|
|
|
|
if (caps & (1<<4))
|
|
sl->e->crypto.enabled = 1;
|
|
|
|
if (bss[NL80211_BSS_FREQUENCY])
|
|
sl->e->channel = nl80211_freq2channel(nla_get_u32(
|
|
bss[NL80211_BSS_FREQUENCY]));
|
|
|
|
if (bss[NL80211_BSS_INFORMATION_ELEMENTS])
|
|
nl80211_get_scanlist_ie(bss, sl->e);
|
|
|
|
if (bss[NL80211_BSS_SIGNAL_MBM])
|
|
{
|
|
sl->e->signal =
|
|
(uint8_t)((int32_t)nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]) / 100);
|
|
|
|
rssi = sl->e->signal - 0x100;
|
|
|
|
if (rssi < -110)
|
|
rssi = -110;
|
|
else if (rssi > -40)
|
|
rssi = -40;
|
|
|
|
sl->e->quality = (rssi + 110);
|
|
sl->e->quality_max = 70;
|
|
}
|
|
|
|
if (sl->e->crypto.enabled && !sl->e->crypto.wpa_version)
|
|
{
|
|
sl->e->crypto.auth_algs = IWINFO_AUTH_OPEN | IWINFO_AUTH_SHARED;
|
|
sl->e->crypto.pair_ciphers = IWINFO_CIPHER_WEP40 | IWINFO_CIPHER_WEP104;
|
|
}
|
|
|
|
sl->e++;
|
|
sl->len++;
|
|
|
|
return NL_SKIP;
|
|
}
|
|
|
|
static int nl80211_get_scanlist_nl(const char *ifname, char *buf, int *len)
|
|
{
|
|
struct nl80211_scanlist sl = { .e = (struct iwinfo_scanlist_entry *)buf };
|
|
|
|
if (nl80211_request(ifname, NL80211_CMD_TRIGGER_SCAN, 0, NULL, NULL))
|
|
goto out;
|
|
|
|
if (nl80211_wait("nl80211", "scan",
|
|
NL80211_CMD_NEW_SCAN_RESULTS, NL80211_CMD_SCAN_ABORTED))
|
|
goto out;
|
|
|
|
if (nl80211_request(ifname, NL80211_CMD_GET_SCAN, NLM_F_DUMP,
|
|
nl80211_get_scanlist_cb, &sl))
|
|
goto out;
|
|
|
|
*len = sl.len * sizeof(struct iwinfo_scanlist_entry);
|
|
return 0;
|
|
|
|
out:
|
|
*len = 0;
|
|
return -1;
|
|
}
|
|
|
|
static int wpasupp_ssid_decode(const char *in, char *out, int outlen)
|
|
{
|
|
#define hex(x) \
|
|
(((x) >= 'a') ? ((x) - 'a' + 10) : \
|
|
(((x) >= 'A') ? ((x) - 'A' + 10) : ((x) - '0')))
|
|
|
|
int len = 0;
|
|
|
|
while (*in)
|
|
{
|
|
if (len + 1 >= outlen)
|
|
break;
|
|
|
|
switch (*in)
|
|
{
|
|
case '\\':
|
|
in++;
|
|
switch (*in)
|
|
{
|
|
case 'n':
|
|
out[len++] = '\n'; in++;
|
|
break;
|
|
|
|
case 'r':
|
|
out[len++] = '\r'; in++;
|
|
break;
|
|
|
|
case 't':
|
|
out[len++] = '\t'; in++;
|
|
break;
|
|
|
|
case 'e':
|
|
out[len++] = '\033'; in++;
|
|
break;
|
|
|
|
case 'x':
|
|
if (isxdigit(*(in+1)) && isxdigit(*(in+2)))
|
|
out[len++] = hex(*(in+1)) * 16 + hex(*(in+2));
|
|
in += 3;
|
|
break;
|
|
|
|
default:
|
|
out[len++] = *in++;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
out[len++] = *in++;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (outlen > len)
|
|
out[len] = '\0';
|
|
|
|
return len;
|
|
}
|
|
|
|
static int nl80211_get_scanlist_wpactl(const char *ifname, char *buf, int *len)
|
|
{
|
|
int sock, qmax, rssi, tries, count = -1, ready = 0;
|
|
char *pos, *line, *bssid, *freq, *signal, *flags, *ssid, reply[4096];
|
|
struct sockaddr_un local = { 0 };
|
|
struct iwinfo_scanlist_entry *e = (struct iwinfo_scanlist_entry *)buf;
|
|
|
|
sock = nl80211_wpactl_connect(ifname, &local);
|
|
|
|
if (sock < 0)
|
|
return sock;
|
|
|
|
send(sock, "ATTACH", 6, 0);
|
|
send(sock, "SCAN", 4, 0);
|
|
|
|
/*
|
|
* wait for scan results:
|
|
* nl80211_wpactl_recv() will use a timeout of 256ms and we need to scan
|
|
* 72 channels at most. We'll also receive two "OK" messages acknowledging
|
|
* the "ATTACH" and "SCAN" commands and the driver might need a bit extra
|
|
* time to process the results, so try 72 + 2 + 1 times.
|
|
*/
|
|
for (tries = 0; tries < 75; tries++)
|
|
{
|
|
if (nl80211_wpactl_recv(sock, reply, sizeof(reply)) <= 0)
|
|
continue;
|
|
|
|
/* got an event notification */
|
|
if (reply[0] == '<')
|
|
{
|
|
/* scan results are ready */
|
|
if (strstr(reply, "CTRL-EVENT-SCAN-RESULTS"))
|
|
{
|
|
/* send "SCAN_RESULTS" command */
|
|
ready = (send(sock, "SCAN_RESULTS", 12, 0) == 12);
|
|
break;
|
|
}
|
|
|
|
/* is another unrelated event, retry */
|
|
tries--;
|
|
}
|
|
|
|
/* scanning already in progress, keep awaiting results */
|
|
else if (!strcmp(reply, "FAIL-BUSY\n"))
|
|
{
|
|
tries--;
|
|
}
|
|
|
|
/* another failure, abort */
|
|
else if (!strncmp(reply, "FAIL-", 5))
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* receive and parse scan results if the wait above didn't time out */
|
|
while (ready && nl80211_wpactl_recv(sock, reply, sizeof(reply)) > 0)
|
|
{
|
|
/* received an event notification, receive again */
|
|
if (reply[0] == '<')
|
|
continue;
|
|
|
|
nl80211_get_quality_max(ifname, &qmax);
|
|
|
|
for (line = strtok_r(reply, "\n", &pos);
|
|
line != NULL;
|
|
line = strtok_r(NULL, "\n", &pos))
|
|
{
|
|
/* skip header line */
|
|
if (count < 0)
|
|
{
|
|
count++;
|
|
continue;
|
|
}
|
|
|
|
bssid = strtok(line, "\t");
|
|
freq = strtok(NULL, "\t");
|
|
signal = strtok(NULL, "\t");
|
|
flags = strtok(NULL, "\t");
|
|
ssid = strtok(NULL, "\n");
|
|
|
|
if (!bssid || !freq || !signal || !flags)
|
|
continue;
|
|
|
|
/* BSSID */
|
|
e->mac[0] = strtol(&bssid[0], NULL, 16);
|
|
e->mac[1] = strtol(&bssid[3], NULL, 16);
|
|
e->mac[2] = strtol(&bssid[6], NULL, 16);
|
|
e->mac[3] = strtol(&bssid[9], NULL, 16);
|
|
e->mac[4] = strtol(&bssid[12], NULL, 16);
|
|
e->mac[5] = strtol(&bssid[15], NULL, 16);
|
|
|
|
/* SSID */
|
|
if (ssid)
|
|
wpasupp_ssid_decode(ssid, e->ssid, sizeof(e->ssid));
|
|
else
|
|
e->ssid[0] = 0;
|
|
|
|
/* Mode */
|
|
if (strstr(flags, "[MESH]"))
|
|
e->mode = IWINFO_OPMODE_MESHPOINT;
|
|
else if (strstr(flags, "[IBSS]"))
|
|
e->mode = IWINFO_OPMODE_ADHOC;
|
|
else
|
|
e->mode = IWINFO_OPMODE_MASTER;
|
|
|
|
/* Channel */
|
|
e->channel = nl80211_freq2channel(atoi(freq));
|
|
|
|
/* Signal */
|
|
rssi = atoi(signal);
|
|
e->signal = rssi;
|
|
|
|
/* Quality */
|
|
if (rssi < 0)
|
|
{
|
|
/* The cfg80211 wext compat layer assumes a signal range
|
|
* of -110 dBm to -40 dBm, the quality value is derived
|
|
* by adding 110 to the signal level */
|
|
if (rssi < -110)
|
|
rssi = -110;
|
|
else if (rssi > -40)
|
|
rssi = -40;
|
|
|
|
e->quality = (rssi + 110);
|
|
}
|
|
else
|
|
{
|
|
e->quality = rssi;
|
|
}
|
|
|
|
/* Max. Quality */
|
|
e->quality_max = qmax;
|
|
|
|
/* Crypto */
|
|
nl80211_get_scancrypto(flags, &e->crypto);
|
|
|
|
count++;
|
|
e++;
|
|
}
|
|
|
|
*len = count * sizeof(struct iwinfo_scanlist_entry);
|
|
break;
|
|
}
|
|
|
|
close(sock);
|
|
unlink(local.sun_path);
|
|
|
|
return (count >= 0) ? 0 : -1;
|
|
}
|
|
|
|
static int nl80211_get_scanlist(const char *ifname, char *buf, int *len)
|
|
{
|
|
char *res;
|
|
int rv, mode;
|
|
|
|
*len = 0;
|
|
|
|
/* Got a radioX pseudo interface, find some interface on it or create one */
|
|
if (!strncmp(ifname, "radio", 5))
|
|
{
|
|
/* Reuse existing interface */
|
|
if ((res = nl80211_phy2ifname(ifname)) != NULL)
|
|
{
|
|
return nl80211_get_scanlist(res, buf, len);
|
|
}
|
|
|
|
/* Need to spawn a temporary iface for scanning */
|
|
else if ((res = nl80211_ifadd(ifname)) != NULL)
|
|
{
|
|
rv = nl80211_get_scanlist(res, buf, len);
|
|
nl80211_ifdel(res);
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
/* WPA supplicant */
|
|
if (!nl80211_get_scanlist_wpactl(ifname, buf, len))
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/* station / ad-hoc / monitor scan */
|
|
else if (!nl80211_get_mode(ifname, &mode) &&
|
|
(mode == IWINFO_OPMODE_ADHOC ||
|
|
mode == IWINFO_OPMODE_MASTER ||
|
|
mode == IWINFO_OPMODE_CLIENT ||
|
|
mode == IWINFO_OPMODE_MONITOR) &&
|
|
iwinfo_ifup(ifname))
|
|
{
|
|
return nl80211_get_scanlist_nl(ifname, buf, len);
|
|
}
|
|
|
|
/* AP scan */
|
|
else
|
|
{
|
|
/* Got a temp interface, don't create yet another one */
|
|
if (!strncmp(ifname, "tmp.", 4))
|
|
{
|
|
if (!iwinfo_ifup(ifname))
|
|
return -1;
|
|
|
|
rv = nl80211_get_scanlist_nl(ifname, buf, len);
|
|
iwinfo_ifdown(ifname);
|
|
return rv;
|
|
}
|
|
|
|
/* Spawn a new scan interface */
|
|
else
|
|
{
|
|
if (!(res = nl80211_ifadd(ifname)))
|
|
return -1;
|
|
|
|
iwinfo_ifmac(res);
|
|
|
|
/* if we can take the new interface up, the driver supports an
|
|
* additional interface and there's no need to tear down the ap */
|
|
if (iwinfo_ifup(res))
|
|
{
|
|
rv = nl80211_get_scanlist_nl(res, buf, len);
|
|
iwinfo_ifdown(res);
|
|
}
|
|
|
|
/* driver cannot create secondary interface, take down ap
|
|
* during scan */
|
|
else if (iwinfo_ifdown(ifname) && iwinfo_ifup(res))
|
|
{
|
|
rv = nl80211_get_scanlist_nl(res, buf, len);
|
|
iwinfo_ifdown(res);
|
|
iwinfo_ifup(ifname);
|
|
nl80211_hostapd_hup(ifname);
|
|
}
|
|
|
|
nl80211_ifdel(res);
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
static int nl80211_get_freqlist_cb(struct nl_msg *msg, void *arg)
|
|
{
|
|
int bands_remain, freqs_remain;
|
|
|
|
struct nl80211_array_buf *arr = arg;
|
|
struct iwinfo_freqlist_entry *e;
|
|
|
|
struct nlattr **attr = nl80211_parse(msg);
|
|
struct nlattr *bands[NL80211_BAND_ATTR_MAX + 1];
|
|
struct nlattr *freqs[NL80211_FREQUENCY_ATTR_MAX + 1];
|
|
struct nlattr *band, *freq;
|
|
|
|
e = arr->buf;
|
|
e += arr->count;
|
|
|
|
if (attr[NL80211_ATTR_WIPHY_BANDS]) {
|
|
nla_for_each_nested(band, attr[NL80211_ATTR_WIPHY_BANDS], bands_remain)
|
|
{
|
|
nla_parse(bands, NL80211_BAND_ATTR_MAX,
|
|
nla_data(band), nla_len(band), NULL);
|
|
|
|
if (bands[NL80211_BAND_ATTR_FREQS]) {
|
|
nla_for_each_nested(freq, bands[NL80211_BAND_ATTR_FREQS], freqs_remain)
|
|
{
|
|
nla_parse(freqs, NL80211_FREQUENCY_ATTR_MAX,
|
|
nla_data(freq), nla_len(freq), NULL);
|
|
|
|
if (!freqs[NL80211_FREQUENCY_ATTR_FREQ] ||
|
|
freqs[NL80211_FREQUENCY_ATTR_DISABLED])
|
|
continue;
|
|
|
|
e->mhz = nla_get_u32(freqs[NL80211_FREQUENCY_ATTR_FREQ]);
|
|
e->channel = nl80211_freq2channel(e->mhz);
|
|
|
|
e->restricted = (
|
|
freqs[NL80211_FREQUENCY_ATTR_NO_IR] &&
|
|
!freqs[NL80211_FREQUENCY_ATTR_RADAR]
|
|
) ? 1 : 0;
|
|
|
|
if (freqs[NL80211_FREQUENCY_ATTR_NO_HT40_MINUS])
|
|
e->flags |= IWINFO_FREQ_NO_HT40MINUS;
|
|
if (freqs[NL80211_FREQUENCY_ATTR_NO_HT40_PLUS])
|
|
e->flags |= IWINFO_FREQ_NO_HT40PLUS;
|
|
if (freqs[NL80211_FREQUENCY_ATTR_NO_80MHZ])
|
|
e->flags |= IWINFO_FREQ_NO_80MHZ;
|
|
if (freqs[NL80211_FREQUENCY_ATTR_NO_160MHZ])
|
|
e->flags |= IWINFO_FREQ_NO_160MHZ;
|
|
if (freqs[NL80211_FREQUENCY_ATTR_NO_20MHZ])
|
|
e->flags |= IWINFO_FREQ_NO_20MHZ;
|
|
if (freqs[NL80211_FREQUENCY_ATTR_NO_10MHZ])
|
|
e->flags |= IWINFO_FREQ_NO_10MHZ;
|
|
|
|
e++;
|
|
arr->count++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return NL_SKIP;
|
|
}
|
|
|
|
static int nl80211_get_freqlist(const char *ifname, char *buf, int *len)
|
|
{
|
|
struct nl80211_msg_conveyor *cv;
|
|
struct nl80211_array_buf arr = { .buf = buf, .count = 0 };
|
|
uint32_t features = nl80211_get_protocol_features(ifname);
|
|
int flags;
|
|
|
|
flags = features & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP ? NLM_F_DUMP : 0;
|
|
cv = nl80211_msg(ifname, NL80211_CMD_GET_WIPHY, flags);
|
|
if (!cv)
|
|
goto out;
|
|
|
|
NLA_PUT_FLAG(cv->msg, NL80211_ATTR_SPLIT_WIPHY_DUMP);
|
|
if (nl80211_send(cv, nl80211_get_freqlist_cb, &arr))
|
|
goto out;
|
|
|
|
*len = arr.count * sizeof(struct iwinfo_freqlist_entry);
|
|
return 0;
|
|
|
|
nla_put_failure:
|
|
nl80211_free(cv);
|
|
out:
|
|
*len = 0;
|
|
return -1;
|
|
}
|
|
|
|
static int nl80211_get_country_cb(struct nl_msg *msg, void *arg)
|
|
{
|
|
char *buf = arg;
|
|
struct nlattr **attr = nl80211_parse(msg);
|
|
|
|
if (attr[NL80211_ATTR_REG_ALPHA2])
|
|
memcpy(buf, nla_data(attr[NL80211_ATTR_REG_ALPHA2]), 2);
|
|
else
|
|
buf[0] = 0;
|
|
|
|
return NL_SKIP;
|
|
}
|
|
|
|
static int nl80211_get_country(const char *ifname, char *buf)
|
|
{
|
|
if (nl80211_request(ifname, NL80211_CMD_GET_REG, 0,
|
|
nl80211_get_country_cb, buf))
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_get_countrylist(const char *ifname, char *buf, int *len)
|
|
{
|
|
int count;
|
|
struct iwinfo_country_entry *e = (struct iwinfo_country_entry *)buf;
|
|
const struct iwinfo_iso3166_label *l;
|
|
|
|
for (l = IWINFO_ISO3166_NAMES, count = 0; l->iso3166; l++, e++, count++)
|
|
{
|
|
e->iso3166 = l->iso3166;
|
|
e->ccode[0] = (l->iso3166 / 256);
|
|
e->ccode[1] = (l->iso3166 % 256);
|
|
e->ccode[2] = 0;
|
|
}
|
|
|
|
*len = (count * sizeof(struct iwinfo_country_entry));
|
|
return 0;
|
|
}
|
|
|
|
|
|
struct nl80211_modes
|
|
{
|
|
bool ok;
|
|
uint32_t hw;
|
|
uint32_t ht;
|
|
|
|
uint32_t nl_freq;
|
|
uint16_t nl_ht;
|
|
uint32_t nl_vht;
|
|
uint16_t he_phy_cap[6];
|
|
};
|
|
|
|
static int nl80211_eval_modelist(struct nl80211_modes *m)
|
|
{
|
|
/* Treat any nonzero capability as 11n */
|
|
if (m->nl_ht > 0)
|
|
{
|
|
m->hw |= IWINFO_80211_N;
|
|
m->ht |= IWINFO_HTMODE_HT20;
|
|
|
|
if (m->nl_ht & (1 << 1))
|
|
m->ht |= IWINFO_HTMODE_HT40;
|
|
}
|
|
|
|
if (m->he_phy_cap[0] != 0) {
|
|
m->hw |= IWINFO_80211_AX;
|
|
m->ht |= IWINFO_HTMODE_HE20;
|
|
|
|
if (m->he_phy_cap[0] & BIT(9))
|
|
m->ht |= IWINFO_HTMODE_HE40;
|
|
if (m->he_phy_cap[0] & BIT(10))
|
|
m->ht |= IWINFO_HTMODE_HE40 | IWINFO_HTMODE_HE80;
|
|
if (m->he_phy_cap[0] & BIT(11))
|
|
m->ht |= IWINFO_HTMODE_HE160;
|
|
if (m->he_phy_cap[0] & BIT(12))
|
|
m->ht |= IWINFO_HTMODE_HE160 | IWINFO_HTMODE_HE80_80;
|
|
}
|
|
|
|
if (m->nl_freq < 2485)
|
|
{
|
|
m->hw |= IWINFO_80211_B;
|
|
m->hw |= IWINFO_80211_G;
|
|
}
|
|
else if (m->nl_vht)
|
|
{
|
|
/* Treat any nonzero capability as 11ac */
|
|
if (m->nl_vht > 0)
|
|
{
|
|
m->hw |= IWINFO_80211_AC;
|
|
m->ht |= IWINFO_HTMODE_VHT20 | IWINFO_HTMODE_VHT40 | IWINFO_HTMODE_VHT80;
|
|
|
|
switch ((m->nl_vht >> 2) & 3)
|
|
{
|
|
case 2:
|
|
m->ht |= IWINFO_HTMODE_VHT80_80;
|
|
/* fall through */
|
|
|
|
case 1:
|
|
m->ht |= IWINFO_HTMODE_VHT160;
|
|
}
|
|
}
|
|
}
|
|
else if (m->nl_freq >= 56160)
|
|
{
|
|
m->hw |= IWINFO_80211_AD;
|
|
}
|
|
else if (!(m->hw & IWINFO_80211_AC))
|
|
{
|
|
m->hw |= IWINFO_80211_A;
|
|
}
|
|
}
|
|
|
|
static int nl80211_get_modelist_cb(struct nl_msg *msg, void *arg)
|
|
{
|
|
struct nl80211_modes *m = arg;
|
|
int bands_remain, freqs_remain;
|
|
uint16_t caps = 0;
|
|
uint32_t vht_caps = 0;
|
|
struct nlattr **attr = nl80211_parse(msg);
|
|
struct nlattr *bands[NL80211_BAND_ATTR_MAX + 1];
|
|
struct nlattr *freqs[NL80211_FREQUENCY_ATTR_MAX + 1];
|
|
struct nlattr *band, *freq;
|
|
|
|
if (attr[NL80211_ATTR_WIPHY_BANDS])
|
|
{
|
|
nla_for_each_nested(band, attr[NL80211_ATTR_WIPHY_BANDS], bands_remain)
|
|
{
|
|
nla_parse(bands, NL80211_BAND_ATTR_MAX,
|
|
nla_data(band), nla_len(band), NULL);
|
|
|
|
if (bands[NL80211_BAND_ATTR_HT_CAPA])
|
|
m->nl_ht = nla_get_u16(bands[NL80211_BAND_ATTR_HT_CAPA]);
|
|
|
|
if (bands[NL80211_BAND_ATTR_VHT_CAPA])
|
|
m->nl_vht = nla_get_u32(bands[NL80211_BAND_ATTR_VHT_CAPA]);
|
|
|
|
if (bands[NL80211_BAND_ATTR_IFTYPE_DATA]) {
|
|
struct nlattr *tb[NL80211_BAND_IFTYPE_ATTR_MAX + 1];
|
|
struct nlattr *nl_iftype;
|
|
int rem_band;
|
|
int len;
|
|
|
|
nla_for_each_nested(nl_iftype, bands[NL80211_BAND_ATTR_IFTYPE_DATA], rem_band) {
|
|
nla_parse(tb, NL80211_BAND_IFTYPE_ATTR_MAX,
|
|
nla_data(nl_iftype), nla_len(nl_iftype), NULL);
|
|
if (tb[NL80211_BAND_IFTYPE_ATTR_HE_CAP_PHY]) {
|
|
len = nla_len(tb[NL80211_BAND_IFTYPE_ATTR_HE_CAP_PHY]);
|
|
|
|
if (len > sizeof(m->he_phy_cap) - 1)
|
|
len = sizeof(m->he_phy_cap) - 1;
|
|
memcpy(&((__u8 *)m->he_phy_cap)[1],
|
|
nla_data(tb[NL80211_BAND_IFTYPE_ATTR_HE_CAP_PHY]),
|
|
len);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (bands[NL80211_BAND_ATTR_FREQS]) {
|
|
nla_for_each_nested(freq, bands[NL80211_BAND_ATTR_FREQS],
|
|
freqs_remain)
|
|
{
|
|
nla_parse(freqs, NL80211_FREQUENCY_ATTR_MAX,
|
|
nla_data(freq), nla_len(freq), NULL);
|
|
|
|
if (!freqs[NL80211_FREQUENCY_ATTR_FREQ])
|
|
continue;
|
|
|
|
m->nl_freq = nla_get_u32(freqs[NL80211_FREQUENCY_ATTR_FREQ]);
|
|
}
|
|
}
|
|
}
|
|
|
|
m->ok = 1;
|
|
}
|
|
|
|
return NL_SKIP;
|
|
}
|
|
|
|
static int nl80211_get_hwmodelist(const char *ifname, int *buf)
|
|
{
|
|
struct nl80211_msg_conveyor *cv;
|
|
struct nl80211_modes m = {};
|
|
uint32_t features = nl80211_get_protocol_features(ifname);
|
|
int flags;
|
|
|
|
flags = features & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP ? NLM_F_DUMP : 0;
|
|
cv = nl80211_msg(ifname, NL80211_CMD_GET_WIPHY, flags);
|
|
if (!cv)
|
|
goto out;
|
|
|
|
NLA_PUT_FLAG(cv->msg, NL80211_ATTR_SPLIT_WIPHY_DUMP);
|
|
if (nl80211_send(cv, nl80211_get_modelist_cb, &m))
|
|
goto nla_put_failure;
|
|
|
|
nl80211_eval_modelist(&m);
|
|
|
|
*buf = m.hw;
|
|
|
|
return 0;
|
|
|
|
nla_put_failure:
|
|
nl80211_free(cv);
|
|
out:
|
|
return -1;
|
|
}
|
|
|
|
struct chan_info {
|
|
int width;
|
|
int mode;
|
|
};
|
|
|
|
static int nl80211_get_htmode_cb(struct nl_msg *msg, void *arg)
|
|
{
|
|
struct nlattr **tb = nl80211_parse(msg);
|
|
struct nlattr *cur;
|
|
struct chan_info *chn = arg;
|
|
|
|
if ((cur = tb[NL80211_ATTR_CHANNEL_WIDTH]))
|
|
chn->width = nla_get_u32(cur);
|
|
|
|
if ((cur = tb[NL80211_ATTR_BSS_HT_OPMODE]))
|
|
chn->mode = nla_get_u32(cur);
|
|
|
|
return NL_SKIP;
|
|
}
|
|
|
|
static int nl80211_get_htmode(const char *ifname, int *buf)
|
|
{
|
|
struct chan_info chn = { .width = 0, .mode = 0 };
|
|
char *res;
|
|
int err;
|
|
|
|
res = nl80211_phy2ifname(ifname);
|
|
*buf = 0;
|
|
|
|
err = nl80211_request(res ? res : ifname,
|
|
NL80211_CMD_GET_INTERFACE, 0,
|
|
nl80211_get_htmode_cb, &chn);
|
|
if (err)
|
|
return -1;
|
|
|
|
switch (chn.width) {
|
|
case NL80211_CHAN_WIDTH_20:
|
|
if (chn.mode == -1)
|
|
*buf = IWINFO_HTMODE_VHT20;
|
|
else
|
|
*buf = IWINFO_HTMODE_HT20;
|
|
break;
|
|
case NL80211_CHAN_WIDTH_40:
|
|
if (chn.mode == -1)
|
|
*buf = IWINFO_HTMODE_VHT40;
|
|
else
|
|
*buf = IWINFO_HTMODE_HT40;
|
|
break;
|
|
case NL80211_CHAN_WIDTH_80:
|
|
*buf = IWINFO_HTMODE_VHT80;
|
|
break;
|
|
case NL80211_CHAN_WIDTH_80P80:
|
|
*buf = IWINFO_HTMODE_VHT80_80;
|
|
break;
|
|
case NL80211_CHAN_WIDTH_160:
|
|
*buf = IWINFO_HTMODE_VHT160;
|
|
break;
|
|
case NL80211_CHAN_WIDTH_5:
|
|
case NL80211_CHAN_WIDTH_10:
|
|
case NL80211_CHAN_WIDTH_20_NOHT:
|
|
*buf = IWINFO_HTMODE_NOHT;
|
|
break;
|
|
default:
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_get_htmodelist(const char *ifname, int *buf)
|
|
{
|
|
struct nl80211_msg_conveyor *cv;
|
|
struct nl80211_modes m = {};
|
|
uint32_t features = nl80211_get_protocol_features(ifname);
|
|
int flags;
|
|
|
|
flags = features & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP ? NLM_F_DUMP : 0;
|
|
cv = nl80211_msg(ifname, NL80211_CMD_GET_WIPHY, flags);
|
|
if (!cv)
|
|
goto out;
|
|
|
|
NLA_PUT_FLAG(cv->msg, NL80211_ATTR_SPLIT_WIPHY_DUMP);
|
|
if (nl80211_send(cv, nl80211_get_modelist_cb, &m))
|
|
goto nla_put_failure;
|
|
|
|
nl80211_eval_modelist(&m);
|
|
|
|
*buf = m.ht;
|
|
|
|
return 0;
|
|
|
|
nla_put_failure:
|
|
nl80211_free(cv);
|
|
out:
|
|
return -1;
|
|
}
|
|
|
|
|
|
static int nl80211_get_ifcomb_cb(struct nl_msg *msg, void *arg)
|
|
{
|
|
struct nlattr **attr = nl80211_parse(msg);
|
|
struct nlattr *comb;
|
|
int *ret = arg;
|
|
int comb_rem, limit_rem, mode_rem;
|
|
|
|
*ret = 0;
|
|
if (!attr[NL80211_ATTR_INTERFACE_COMBINATIONS])
|
|
return NL_SKIP;
|
|
|
|
nla_for_each_nested(comb, attr[NL80211_ATTR_INTERFACE_COMBINATIONS], comb_rem)
|
|
{
|
|
static struct nla_policy iface_combination_policy[NUM_NL80211_IFACE_COMB] = {
|
|
[NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED },
|
|
[NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 },
|
|
};
|
|
struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB+1];
|
|
static struct nla_policy iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = {
|
|
[NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED },
|
|
[NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 },
|
|
};
|
|
struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT+1];
|
|
struct nlattr *limit;
|
|
|
|
nla_parse_nested(tb_comb, NUM_NL80211_IFACE_COMB, comb, iface_combination_policy);
|
|
|
|
if (!tb_comb[NL80211_IFACE_COMB_LIMITS])
|
|
continue;
|
|
|
|
nla_for_each_nested(limit, tb_comb[NL80211_IFACE_COMB_LIMITS], limit_rem)
|
|
{
|
|
struct nlattr *mode;
|
|
|
|
nla_parse_nested(tb_limit, NUM_NL80211_IFACE_LIMIT, limit, iface_limit_policy);
|
|
|
|
if (!tb_limit[NL80211_IFACE_LIMIT_TYPES] ||
|
|
!tb_limit[NL80211_IFACE_LIMIT_MAX])
|
|
continue;
|
|
|
|
if (nla_get_u32(tb_limit[NL80211_IFACE_LIMIT_MAX]) < 2)
|
|
continue;
|
|
|
|
nla_for_each_nested(mode, tb_limit[NL80211_IFACE_LIMIT_TYPES], mode_rem) {
|
|
if (nla_type(mode) == NL80211_IFTYPE_AP)
|
|
*ret = 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
return NL_SKIP;
|
|
}
|
|
|
|
static int nl80211_get_mbssid_support(const char *ifname, int *buf)
|
|
{
|
|
if (nl80211_request(ifname, NL80211_CMD_GET_WIPHY, 0,
|
|
nl80211_get_ifcomb_cb, buf))
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_hardware_id_from_fdt(struct iwinfo_hardware_id *id, const char *ifname)
|
|
{
|
|
char *phy, compat[64], path[PATH_MAX];
|
|
int i;
|
|
|
|
/* Try to determine the phy name from the given interface */
|
|
phy = nl80211_ifname2phy(ifname);
|
|
|
|
snprintf(path, sizeof(path), "/sys/class/%s/%s/device/of_node/compatible",
|
|
phy ? "ieee80211" : "net", phy ? phy : ifname);
|
|
|
|
if (nl80211_readstr(path, compat, sizeof(compat)) <= 0)
|
|
return -1;
|
|
|
|
if (!strcmp(compat, "qca,ar9130-wmac")) {
|
|
id->vendor_id = 0x168c;
|
|
id->device_id = 0x0029;
|
|
id->subsystem_vendor_id = 0x168c;
|
|
id->subsystem_device_id = 0x9130;
|
|
} else if (!strcmp(compat, "qca,ar9330-wmac")) {
|
|
id->vendor_id = 0x168c;
|
|
id->device_id = 0x0030;
|
|
id->subsystem_vendor_id = 0x168c;
|
|
id->subsystem_device_id = 0x9330;
|
|
} else if (!strcmp(compat, "qca,ar9340-wmac")) {
|
|
id->vendor_id = 0x168c;
|
|
id->device_id = 0x0030;
|
|
id->subsystem_vendor_id = 0x168c;
|
|
id->subsystem_device_id = 0x9340;
|
|
} else if (!strcmp(compat, "qca,qca9530-wmac")) {
|
|
id->vendor_id = 0x168c;
|
|
id->device_id = 0x0033;
|
|
id->subsystem_vendor_id = 0x168c;
|
|
id->subsystem_device_id = 0x9530;
|
|
} else if (!strcmp(compat, "qca,qca9550-wmac")) {
|
|
id->vendor_id = 0x168c;
|
|
id->device_id = 0x0033;
|
|
id->subsystem_vendor_id = 0x168c;
|
|
id->subsystem_device_id = 0x9550;
|
|
} else if (!strcmp(compat, "qca,qca9560-wmac")) {
|
|
id->vendor_id = 0x168c;
|
|
id->device_id = 0x0033;
|
|
id->subsystem_vendor_id = 0x168c;
|
|
id->subsystem_device_id = 0x9560;
|
|
} else if (!strcmp(compat, "qcom,ipq4019-wifi")) {
|
|
id->vendor_id = 0x168c;
|
|
id->device_id = 0x003c;
|
|
id->subsystem_vendor_id = 0x168c;
|
|
id->subsystem_device_id = 0x4019;
|
|
} else if (!strcmp(compat, "mediatek,mt7622-wmac")) {
|
|
id->vendor_id = 0x14c3;
|
|
id->device_id = 0x7622;
|
|
id->subsystem_vendor_id = 0x14c3;
|
|
id->subsystem_device_id = 0x7622;
|
|
}
|
|
return (id->vendor_id && id->device_id) ? 0 : -1;
|
|
}
|
|
|
|
|
|
static int nl80211_get_hardware_id(const char *ifname, char *buf)
|
|
{
|
|
struct iwinfo_hardware_id *id = (struct iwinfo_hardware_id *)buf;
|
|
char *phy, num[8], path[PATH_MAX];
|
|
int i;
|
|
|
|
struct { const char *path; uint16_t *dest; } lookup[] = {
|
|
{ "vendor", &id->vendor_id },
|
|
{ "device", &id->device_id },
|
|
{ "subsystem_vendor", &id->subsystem_vendor_id },
|
|
{ "subsystem_device", &id->subsystem_device_id }
|
|
};
|
|
|
|
memset(id, 0, sizeof(*id));
|
|
|
|
/* Try to determine the phy name from the given interface */
|
|
phy = nl80211_ifname2phy(ifname);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(lookup); i++)
|
|
{
|
|
snprintf(path, sizeof(path), "/sys/class/%s/%s/device/%s",
|
|
phy ? "ieee80211" : "net",
|
|
phy ? phy : ifname, lookup[i].path);
|
|
|
|
if (nl80211_readstr(path, num, sizeof(num)) > 0)
|
|
*lookup[i].dest = strtoul(num, NULL, 16);
|
|
}
|
|
|
|
/* Failed to obtain hardware IDs, try FDT */
|
|
if (id->vendor_id == 0 || id->device_id == 0)
|
|
if (!nl80211_hardware_id_from_fdt(id, ifname))
|
|
return 0;
|
|
|
|
/* Failed to obtain hardware IDs, search board config */
|
|
if (id->vendor_id == 0 || id->device_id == 0)
|
|
return iwinfo_hardware_id_from_mtd(id);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct iwinfo_hardware_entry *
|
|
nl80211_get_hardware_entry(const char *ifname)
|
|
{
|
|
struct iwinfo_hardware_id id;
|
|
|
|
if (nl80211_get_hardware_id(ifname, (char *)&id))
|
|
return NULL;
|
|
|
|
return iwinfo_hardware(&id);
|
|
}
|
|
|
|
static int nl80211_get_hardware_name(const char *ifname, char *buf)
|
|
{
|
|
const struct iwinfo_hardware_entry *hw;
|
|
|
|
if (!(hw = nl80211_get_hardware_entry(ifname)))
|
|
sprintf(buf, "Generic MAC80211");
|
|
else
|
|
sprintf(buf, "%s %s", hw->vendor_name, hw->device_name);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_get_txpower_offset(const char *ifname, int *buf)
|
|
{
|
|
const struct iwinfo_hardware_entry *hw;
|
|
|
|
if (!(hw = nl80211_get_hardware_entry(ifname)))
|
|
return -1;
|
|
|
|
*buf = hw->txpower_offset;
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_get_frequency_offset(const char *ifname, int *buf)
|
|
{
|
|
const struct iwinfo_hardware_entry *hw;
|
|
|
|
if (!(hw = nl80211_get_hardware_entry(ifname)))
|
|
return -1;
|
|
|
|
*buf = hw->frequency_offset;
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_lookup_phyname(const char *section, char *buf)
|
|
{
|
|
int idx;
|
|
|
|
if (!strncmp(section, "path=", 5))
|
|
idx = nl80211_phy_idx_from_path(section + 5);
|
|
else if (!strncmp(section, "macaddr=", 8))
|
|
idx = nl80211_phy_idx_from_macaddr(section + 8);
|
|
else
|
|
idx = nl80211_phy_idx_from_uci(section);
|
|
|
|
if (idx < 0)
|
|
return -1;
|
|
|
|
sprintf(buf, "phy%d", idx);
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_phy_path(const char *phyname, const char **path)
|
|
{
|
|
if (strncmp(phyname, "phy", 3) != 0)
|
|
return -1;
|
|
|
|
if (strchr(phyname, '/'))
|
|
return -1;
|
|
|
|
*path = nl80211_phy_path_str(phyname);
|
|
if (!*path)
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
const struct iwinfo_ops nl80211_ops = {
|
|
.name = "nl80211",
|
|
.probe = nl80211_probe,
|
|
.channel = nl80211_get_channel,
|
|
.center_chan1 = nl80211_get_center_chan1,
|
|
.center_chan2 = nl80211_get_center_chan2,
|
|
.frequency = nl80211_get_frequency,
|
|
.frequency_offset = nl80211_get_frequency_offset,
|
|
.txpower = nl80211_get_txpower,
|
|
.txpower_offset = nl80211_get_txpower_offset,
|
|
.bitrate = nl80211_get_bitrate,
|
|
.signal = nl80211_get_signal,
|
|
.noise = nl80211_get_noise,
|
|
.quality = nl80211_get_quality,
|
|
.quality_max = nl80211_get_quality_max,
|
|
.mbssid_support = nl80211_get_mbssid_support,
|
|
.hwmodelist = nl80211_get_hwmodelist,
|
|
.htmodelist = nl80211_get_htmodelist,
|
|
.htmode = nl80211_get_htmode,
|
|
.mode = nl80211_get_mode,
|
|
.ssid = nl80211_get_ssid,
|
|
.bssid = nl80211_get_bssid,
|
|
.country = nl80211_get_country,
|
|
.hardware_id = nl80211_get_hardware_id,
|
|
.hardware_name = nl80211_get_hardware_name,
|
|
.encryption = nl80211_get_encryption,
|
|
.phyname = nl80211_get_phyname,
|
|
.assoclist = nl80211_get_assoclist,
|
|
.txpwrlist = nl80211_get_txpwrlist,
|
|
.scanlist = nl80211_get_scanlist,
|
|
.freqlist = nl80211_get_freqlist,
|
|
.countrylist = nl80211_get_countrylist,
|
|
.survey = nl80211_get_survey,
|
|
.lookup_phy = nl80211_lookup_phyname,
|
|
.phy_path = nl80211_phy_path,
|
|
.close = nl80211_close
|
|
};
|