diff options
Diffstat (limited to 'package/network/utils/iwinfo/src/iwinfo_nl80211.c')
| -rw-r--r-- | package/network/utils/iwinfo/src/iwinfo_nl80211.c | 2538 |
1 files changed, 0 insertions, 2538 deletions
diff --git a/package/network/utils/iwinfo/src/iwinfo_nl80211.c b/package/network/utils/iwinfo/src/iwinfo_nl80211.c deleted file mode 100644 index 66ace26101..0000000000 --- a/package/network/utils/iwinfo/src/iwinfo_nl80211.c +++ /dev/null @@ -1,2538 +0,0 @@ -/* - * iwinfo - Wireless Information Library - NL80211 Backend - * - * Copyright (C) 2010-2013 Jo-Philipp Wich <xm@subsignal.org> - * - * The iwinfo library is free software: you can redistribute it and/or - * modify it under the terms of the GNU General Public License version 2 - * as published by the Free Software Foundation. - * - * The iwinfo library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. - * See the GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with the iwinfo library. If not, see http://www.gnu.org/licenses/. - * - * The signal handling code is derived from the official madwifi tools, - * wlanconfig.c in particular. The encryption property handling was - * inspired by the hostapd madwifi driver. - * - * Parts of this code are derived from the Linux iw utility. - */ - -#include <limits.h> -#include <glob.h> -#include "iwinfo_nl80211.h" - -#define min(x, y) ((x) < (y)) ? (x) : (y) - -static struct nl80211_state *nls = NULL; - -static void nl80211_close(void) -{ - if (nls) - { - if (nls->nlctrl) - genl_family_put(nls->nlctrl); - - if (nls->nl80211) - genl_family_put(nls->nl80211); - - if (nls->nl_sock) - nl_socket_free(nls->nl_sock); - - if (nls->nl_cache) - nl_cache_free(nls->nl_cache); - - free(nls); - nls = NULL; - } -} - -static int nl80211_init(void) -{ - int err, fd; - - if (!nls) - { - nls = malloc(sizeof(struct nl80211_state)); - if (!nls) { - err = -ENOMEM; - goto err; - } - - memset(nls, 0, sizeof(*nls)); - - nls->nl_sock = nl_socket_alloc(); - if (!nls->nl_sock) { - err = -ENOMEM; - goto err; - } - - if (genl_connect(nls->nl_sock)) { - err = -ENOLINK; - goto err; - } - - fd = nl_socket_get_fd(nls->nl_sock); - if (fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | FD_CLOEXEC) < 0) { - err = -EINVAL; - goto err; - } - - if (genl_ctrl_alloc_cache(nls->nl_sock, &nls->nl_cache)) { - err = -ENOMEM; - goto err; - } - - nls->nl80211 = genl_ctrl_search_by_name(nls->nl_cache, "nl80211"); - if (!nls->nl80211) { - err = -ENOENT; - goto err; - } - - nls->nlctrl = genl_ctrl_search_by_name(nls->nl_cache, "nlctrl"); - if (!nls->nlctrl) { - err = -ENOENT; - goto err; - } - } - - return 0; - - -err: - nl80211_close(); - return err; -} - -static int nl80211_readint(const char *path) -{ - int fd; - int rv = -1; - char buffer[16]; - - if ((fd = open(path, O_RDONLY)) > -1) - { - if (read(fd, buffer, sizeof(buffer)) > 0) - rv = atoi(buffer); - - close(fd); - } - - return rv; -} - - -static int nl80211_msg_error(struct sockaddr_nl *nla, - struct nlmsgerr *err, void *arg) -{ - int *ret = arg; - *ret = err->error; - return NL_STOP; -} - -static int nl80211_msg_finish(struct nl_msg *msg, void *arg) -{ - int *ret = arg; - *ret = 0; - return NL_SKIP; -} - -static int nl80211_msg_ack(struct nl_msg *msg, void *arg) -{ - int *ret = arg; - *ret = 0; - return NL_STOP; -} - -static int nl80211_msg_response(struct nl_msg *msg, void *arg) -{ - return NL_SKIP; -} - -static void nl80211_free(struct nl80211_msg_conveyor *cv) -{ - if (cv) - { - if (cv->cb) - nl_cb_put(cv->cb); - - if (cv->msg) - nlmsg_free(cv->msg); - - cv->cb = NULL; - cv->msg = NULL; - } -} - -static struct nl80211_msg_conveyor * nl80211_new(struct genl_family *family, - int cmd, int flags) -{ - static struct nl80211_msg_conveyor cv; - - struct nl_msg *req = NULL; - struct nl_cb *cb = NULL; - - req = nlmsg_alloc(); - if (!req) - goto err; - - cb = nl_cb_alloc(NL_CB_DEFAULT); - if (!cb) - goto err; - - genlmsg_put(req, 0, 0, genl_family_get_id(family), 0, flags, cmd, 0); - - cv.msg = req; - cv.cb = cb; - - return &cv; - -err: -nla_put_failure: - if (cb) - nl_cb_put(cb); - - if (req) - nlmsg_free(req); - - return NULL; -} - -static struct nl80211_msg_conveyor * nl80211_ctl(int cmd, int flags) -{ - if (nl80211_init() < 0) - return NULL; - - return nl80211_new(nls->nlctrl, cmd, flags); -} - -static int nl80211_phy_idx_from_uci(const char *name) -{ - struct uci_section *s; - const char *opt; - char buf[128]; - glob_t gl; - FILE *f = NULL; - int idx = -1; - int err; - - s = iwinfo_uci_get_radio(name, "mac80211"); - if (!s) - goto free; - - opt = uci_lookup_option_string(uci_ctx, s, "path"); - if (!opt) - goto free; - - snprintf(buf, sizeof(buf), "/sys/devices/%s/ieee80211/*/index", opt); - err = glob(buf, 0, NULL, &gl); - if (err) - goto free; - - if (gl.gl_pathc) - f = fopen(gl.gl_pathv[0], "r"); - - globfree(&gl); - - if (!f) - goto free; - - err = fread(buf, 1, sizeof(buf) - 1, f); - fclose(f); - - if (err <= 0) - goto free; - - buf[err] = 0; - idx = atoi(buf); - -free: - iwinfo_uci_free(); - return idx; -} - -static struct nl80211_msg_conveyor * nl80211_msg(const char *ifname, - int cmd, int flags) -{ - int ifidx = -1, phyidx = -1; - struct nl80211_msg_conveyor *cv; - - if (ifname == NULL) - return NULL; - - if (nl80211_init() < 0) - return NULL; - - if (!strncmp(ifname, "phy", 3)) - phyidx = atoi(&ifname[3]); - else if (!strncmp(ifname, "radio", 5)) - phyidx = nl80211_phy_idx_from_uci(ifname); - else if (!strncmp(ifname, "mon.", 4)) - ifidx = if_nametoindex(&ifname[4]); - else - ifidx = if_nametoindex(ifname); - - /* Valid ifidx must be greater than 0 */ - if ((ifidx <= 0) && (phyidx < 0)) - return NULL; - - cv = nl80211_new(nls->nl80211, cmd, flags); - if (!cv) - return NULL; - - if (ifidx > -1) - NLA_PUT_U32(cv->msg, NL80211_ATTR_IFINDEX, ifidx); - - if (phyidx > -1) - NLA_PUT_U32(cv->msg, NL80211_ATTR_WIPHY, phyidx); - - return cv; - -nla_put_failure: - nl80211_free(cv); - return NULL; -} - -static struct nl80211_msg_conveyor * nl80211_send( - struct nl80211_msg_conveyor *cv, - int (*cb_func)(struct nl_msg *, void *), void *cb_arg -) { - static struct nl80211_msg_conveyor rcv; - int err = 1; - - if (cb_func) - nl_cb_set(cv->cb, NL_CB_VALID, NL_CB_CUSTOM, cb_func, cb_arg); - else - nl_cb_set(cv->cb, NL_CB_VALID, NL_CB_CUSTOM, nl80211_msg_response, &rcv); - - if (nl_send_auto_complete(nls->nl_sock, cv->msg) < 0) - goto err; - - 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); - nl_cb_set(cv->cb, NL_CB_ACK, NL_CB_CUSTOM, nl80211_msg_ack, &err); - - while (err > 0) - nl_recvmsgs(nls->nl_sock, cv->cb); - - return &rcv; - -err: - nl_cb_put(cv->cb); - nlmsg_free(cv->msg); - - return NULL; -} - -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_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; - - req = nl80211_ctl(CTRL_CMD_GETFAMILY, 0); - if (req) - { - NLA_PUT_STRING(req->msg, CTRL_ATTR_FAMILY_NAME, family); - nl80211_send(req, nl80211_subscribe_cb, &cv); - -nla_put_failure: - nl80211_free(req); - } - - return nl_socket_add_membership(nls->nl_sock, cv.id); -} - - -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 (gnlh->cmd == cv->wait) - 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, int cmd) -{ - struct nl80211_event_conveyor cv = { .wait = cmd }; - struct nl_cb *cb; - - if (nl80211_subscribe(family, group)) - return -ENOENT; - - cb = nl_cb_alloc(NL_CB_DEFAULT); - - if (!cb) - return -ENOMEM; - - 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 ); - - while (!cv.recv) - nl_recvmsgs(nls->nl_sock, cb); - - nl_cb_put(cb); - - return 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 - 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 (channel >= 182 && channel <= 196) - return (channel * 5) + 4000; - else - return (channel * 5) + 5000; - } - - return 0; -} - -static char * nl80211_getval(const char *ifname, const char *buf, const char *key) -{ - int i, len; - char lkey[64] = { 0 }; - const char *ln = buf; - static char lval[256] = { 0 }; - - int matched_if = ifname ? 0 : 1; - - - for( i = 0, len = strlen(buf); i < len; i++ ) - { - if (!lkey[0] && (buf[i] == ' ' || buf[i] == '\t')) - { - ln++; - } - else if (!lkey[0] && (buf[i] == '=')) - { - if ((&buf[i] - ln) > 0) - memcpy(lkey, ln, min(sizeof(lkey) - 1, &buf[i] - ln)); - } - else if (buf[i] == '\n') - { - if (lkey[0]) - { - memcpy(lval, ln + strlen(lkey) + 1, - min(sizeof(lval) - 1, &buf[i] - ln - strlen(lkey) - 1)); - - if ((ifname != NULL) && - (!strcmp(lkey, "interface") || !strcmp(lkey, "bss")) ) - { - matched_if = !strcmp(lval, ifname); - } - else if (matched_if && !strcmp(lkey, key)) - { - return lval; - } - } - - ln = &buf[i+1]; - memset(lkey, 0, sizeof(lkey)); - memset(lval, 0, sizeof(lval)); - } - } - - return NULL; -} - -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 }; - struct nl80211_msg_conveyor *req; - - memset(phy, 0, sizeof(phy)); - - req = nl80211_msg(ifname, NL80211_CMD_GET_WIPHY, 0); - if (req) - { - nl80211_send(req, nl80211_ifname2phy_cb, phy); - nl80211_free(req); - } - - return phy[0] ? phy : NULL; -} - -static char * nl80211_phy2ifname(const char *ifname) -{ - int fd, 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)); - } - } - } - - 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; - struct nl80211_msg_conveyor *req; - - res = nl80211_phy2ifname(ifname); - req = nl80211_msg(res ? res : ifname, NL80211_CMD_GET_INTERFACE, 0); - *buf = IWINFO_OPMODE_UNKNOWN; - - if (req) - { - nl80211_send(req, nl80211_get_mode_cb, buf); - nl80211_free(req); - } - - return (*buf == IWINFO_OPMODE_UNKNOWN) ? -1 : 0; -} - -static char * nl80211_hostapd_info(const char *ifname) -{ - int mode; - char *phy; - char path[32] = { 0 }; - static char buf[4096] = { 0 }; - FILE *conf; - - if (nl80211_get_mode(ifname, &mode)) - return NULL; - - if ((mode == IWINFO_OPMODE_MASTER || mode == IWINFO_OPMODE_AP_VLAN) && - (phy = nl80211_ifname2phy(ifname)) != NULL) - { - snprintf(path, sizeof(path), "/var/run/hostapd-%s.conf", phy); - - if ((conf = fopen(path, "r")) != NULL) - { - fread(buf, sizeof(buf) - 1, 1, conf); - fclose(conf); - - return buf; - } - } - - return NULL; -} - -static inline int nl80211_wpactl_recv(int sock, char *buf, int blen) -{ - fd_set rfds; - struct timeval tv = { 2, 0 }; - - 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, 0); -} - -static char * nl80211_wpactl_info(const char *ifname, const char *cmd, - const char *event) -{ - int numtry = 0; - int sock = -1; - char *rv = NULL; - size_t remote_length, local_length; - static char buffer[10240] = { 0 }; - - struct sockaddr_un local = { 0 }; - struct sockaddr_un remote = { 0 }; - - - sock = socket(PF_UNIX, SOCK_DGRAM, 0); - if (sock < 0) - return NULL; - - 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) - goto out; - - 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)) - goto out; - } - - 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)) - goto out; - - - if (event) - { - send(sock, "ATTACH", 6, 0); - - if (nl80211_wpactl_recv(sock, buffer, sizeof(buffer)-1) <= 0) - goto out; - } - - - send(sock, cmd, strlen(cmd), 0); - - /* we might have to scan up to 72 channels / 256ms per channel */ - /* this makes up to 18.5s hence 10 tries */ - while( numtry++ < 10 ) - { - char *bracket; - - /* make sure there is a terminating nul byte */ - if (nl80211_wpactl_recv(sock, buffer, sizeof(buffer)-1) <= 0) - { - if (event) - continue; - - break; - } - - if ((!event && buffer[0] != '<') || (event && strstr(buffer, event))) - break; - - /* there may be more than max(numtry) BSS-ADDED events */ - /* ignore them similar to wpa_cli */ - if (buffer[0] == '<' && - (bracket=strchr(buffer,'>')) != NULL && - strncmp(bracket+1,"CTRL-EVENT-BSS-ADDED",20) == 0) - numtry--; - } - - rv = buffer; - -out: - close(sock); - - if (local.sun_family) - unlink(local.sun_path); - - return rv; -} - -static char * nl80211_ifadd(const char *ifname) -{ - int phyidx; - char *rv = NULL, path[PATH_MAX]; - static char nif[IFNAMSIZ] = { 0 }; - struct nl80211_msg_conveyor *req, *res; - 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); - } - - rv = nif; - - nla_put_failure: - nl80211_free(req); - } - - return rv; -} - -static void nl80211_ifdel(const char *ifname) -{ - struct nl80211_msg_conveyor *req; - - 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); - - 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_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] = { }, - [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_msg_conveyor *req; - struct nl80211_ssid_bssid sb; - - /* try to find ssid from scan dump results */ - res = nl80211_phy2ifname(ifname); - req = nl80211_msg(res ? res : ifname, NL80211_CMD_GET_SCAN, NLM_F_DUMP); - - sb.ssid = buf; - *buf = 0; - - if (req) - { - nl80211_send(req, nl80211_get_ssid_bssid_cb, &sb); - nl80211_free(req); - } - - /* failed, try to find from hostapd info */ - if ((*buf == 0) && - (res = nl80211_hostapd_info(ifname)) && - (res = nl80211_getval(ifname, res, "ssid"))) - { - memcpy(buf, res, strlen(res)); - } - - return (*buf == 0) ? -1 : 0; -} - -static int nl80211_get_bssid(const char *ifname, char *buf) -{ - char *res; - struct nl80211_msg_conveyor *req; - struct nl80211_ssid_bssid sb; - - /* try to find bssid from scan dump results */ - res = nl80211_phy2ifname(ifname); - req = nl80211_msg(res ? res : ifname, NL80211_CMD_GET_SCAN, NLM_F_DUMP); - - sb.ssid = NULL; - sb.bssid[0] = 0; - - if (req) - { - nl80211_send(req, nl80211_get_ssid_bssid_cb, &sb); - nl80211_free(req); - } - - /* failed, try to find mac from hostapd info */ - if ((sb.bssid[0] == 0) && - (res = nl80211_hostapd_info(ifname)) && - (res = nl80211_getval(ifname, res, "bssid"))) - { - sb.bssid[0] = 1; - sb.bssid[1] = strtol(&res[0], NULL, 16); - sb.bssid[2] = strtol(&res[3], NULL, 16); - sb.bssid[3] = strtol(&res[6], NULL, 16); - sb.bssid[4] = strtol(&res[9], NULL, 16); - sb.bssid[5] = strtol(&res[12], NULL, 16); - sb.bssid[6] = strtol(&res[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) -{ - int chn; - char *res, *channel; - struct nl80211_msg_conveyor *req; - - /* try to find frequency from interface info */ - res = nl80211_phy2ifname(ifname); - req = nl80211_msg(res ? res : ifname, NL80211_CMD_GET_INTERFACE, 0); - *buf = 0; - - if (req) - { - nl80211_send(req, nl80211_get_frequency_info_cb, buf); - nl80211_free(req); - } - - /* failed, try to find frequency from hostapd info */ - if ((*buf == 0) && - (res = nl80211_hostapd_info(ifname)) && - (channel = nl80211_getval(NULL, res, "channel"))) - { - chn = atoi(channel); - *buf = nl80211_channel2freq(chn, nl80211_getval(NULL, res, "hw_mode")); - } - else - { - /* failed, try to find frequency from scan results */ - if (*buf == 0) - { - res = nl80211_phy2ifname(ifname); - req = nl80211_msg(res ? res : ifname, NL80211_CMD_GET_SCAN, - NLM_F_DUMP); - - if (req) - { - nl80211_send(req, nl80211_get_frequency_scan_cb, buf); - nl80211_free(req); - } - } - } - - 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_txpower(const char *ifname, int *buf) -{ -#if 0 - char *res; - char path[PATH_MAX]; - - res = nl80211_ifname2phy(ifname); - snprintf(path, sizeof(path), "/sys/kernel/debug/ieee80211/%s/power", - res ? res : ifname); - - if ((*buf = nl80211_readint(path)) > -1) - return 0; -#endif - - return wext_ops.txpower(ifname, buf); -} - - -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 ? (int8_t)((rr->rssi + dbm) / 2) : dbm; - } - - 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 - ? (int16_t)((rr->rate + mbit) / 2) : mbit; - } - } - } - } - } - - return NL_SKIP; -} - -static void nl80211_fill_signal(const char *ifname, struct nl80211_rssi_rate *r) -{ - DIR *d; - struct dirent *de; - struct nl80211_msg_conveyor *req; - - r->rssi = 0; - r->rate = 0; - - 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))) - { - req = nl80211_msg(de->d_name, NL80211_CMD_GET_STATION, - NLM_F_DUMP); - - if (req) - { - nl80211_send(req, nl80211_fill_signal_cb, r); - nl80211_free(req); - } - } - } - - 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) - { - *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) - { - *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; - struct nl80211_msg_conveyor *req; - - req = nl80211_msg(ifname, NL80211_CMD_GET_SURVEY, NLM_F_DUMP); - if (req) - { - noise = 0; - - nl80211_send(req, nl80211_get_noise_cb, &noise); - nl80211_free(req); - - if (noise) - { - *buf = noise; - return 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_get_encryption(const char *ifname, char *buf) -{ - int i; - char k[9]; - char *val, *res; - struct iwinfo_crypto_entry *c = (struct iwinfo_crypto_entry *)buf; - - /* WPA supplicant */ - if ((res = nl80211_wpactl_info(ifname, "STATUS", NULL)) && - (val = nl80211_getval(NULL, res, "pairwise_cipher"))) - { - /* WEP */ - if (strstr(val, "WEP")) - { - if (strstr(val, "WEP-40")) - c->pair_ciphers |= IWINFO_CIPHER_WEP40; - - else if (strstr(val, "WEP-104")) - c->pair_ciphers |= IWINFO_CIPHER_WEP104; - - c->enabled = 1; - c->group_ciphers = c->pair_ciphers; - - c->auth_suites |= IWINFO_KMGMT_NONE; - c->auth_algs |= IWINFO_AUTH_OPEN; /* XXX: assumption */ - } - - /* WPA */ - else - { - if (strstr(val, "TKIP")) - c->pair_ciphers |= IWINFO_CIPHER_TKIP; - - else if (strstr(val, "CCMP")) - c->pair_ciphers |= IWINFO_CIPHER_CCMP; - - else if (strstr(val, "NONE")) - c->pair_ciphers |= IWINFO_CIPHER_NONE; - - else if (strstr(val, "WEP-40")) - c->pair_ciphers |= IWINFO_CIPHER_WEP40; - - else if (strstr(val, "WEP-104")) - c->pair_ciphers |= IWINFO_CIPHER_WEP104; - - - if ((val = nl80211_getval(NULL, res, "group_cipher"))) - { - if (strstr(val, "TKIP")) - c->group_ciphers |= IWINFO_CIPHER_TKIP; - - else if (strstr(val, "CCMP")) - c->group_ciphers |= IWINFO_CIPHER_CCMP; - - else if (strstr(val, "NONE")) - c->group_ciphers |= IWINFO_CIPHER_NONE; - - else if (strstr(val, "WEP-40")) - c->group_ciphers |= IWINFO_CIPHER_WEP40; - - else if (strstr(val, "WEP-104")) - c->group_ciphers |= IWINFO_CIPHER_WEP104; - } - - - if ((val = nl80211_getval(NULL, res, "key_mgmt"))) - { - if (strstr(val, "WPA2")) - c->wpa_version = 2; - - else if (strstr(val, "WPA")) - c->wpa_version = 1; - - - if (strstr(val, "PSK")) - c->auth_suites |= IWINFO_KMGMT_PSK; - - else if (strstr(val, "EAP") || strstr(val, "802.1X")) - c->auth_suites |= IWINFO_KMGMT_8021x; - - else if (strstr(val, "NONE")) - c->auth_suites |= IWINFO_KMGMT_NONE; - } - - c->enabled = (c->wpa_version && c->auth_suites) ? 1 : 0; - } - - return 0; - } - - /* Hostapd */ - else if ((res = nl80211_hostapd_info(ifname))) - { - if ((val = nl80211_getval(ifname, res, "wpa")) != NULL) - c->wpa_version = atoi(val); - - val = nl80211_getval(ifname, res, "wpa_key_mgmt"); - - if (!val || strstr(val, "PSK")) - c->auth_suites |= IWINFO_KMGMT_PSK; - - if (val && strstr(val, "EAP")) - c->auth_suites |= IWINFO_KMGMT_8021x; - - if (val && strstr(val, "NONE")) - c->auth_suites |= IWINFO_KMGMT_NONE; - - if ((val = nl80211_getval(ifname, res, "wpa_pairwise")) != NULL) - { - if (strstr(val, "TKIP")) - c->pair_ciphers |= IWINFO_CIPHER_TKIP; - - if (strstr(val, "CCMP")) - c->pair_ciphers |= IWINFO_CIPHER_CCMP; - - if (strstr(val, "NONE")) - c->pair_ciphers |= IWINFO_CIPHER_NONE; - } - - if ((val = nl80211_getval(ifname, res, "auth_algs")) != NULL) - { - switch(atoi(val)) { - 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; - - default: - break; - } - - for (i = 0; i < 4; i++) - { - snprintf(k, sizeof(k), "wep_key%d", i); - - if ((val = nl80211_getval(ifname, res, k))) - { - if ((strlen(val) == 5) || (strlen(val) == 10)) - c->pair_ciphers |= IWINFO_CIPHER_WEP40; - - else if ((strlen(val) == 13) || (strlen(val) == 26)) - c->pair_ciphers |= IWINFO_CIPHER_WEP104; - } - } - } - - c->group_ciphers = c->pair_ciphers; - c->enabled = (c->wpa_version || c->pair_ciphers) ? 1 : 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 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]; - - 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 }, - }; - - 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_INACTIVE_TIME]) - e->inactive = nla_get_u32(sinfo[NL80211_STA_INFO_INACTIVE_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)) - { - if (rinfo[NL80211_RATE_INFO_BITRATE]) - e->rx_rate.rate = - nla_get_u16(rinfo[NL80211_RATE_INFO_BITRATE]) * 100; - - if (rinfo[NL80211_RATE_INFO_MCS]) - e->rx_rate.mcs = nla_get_u8(rinfo[NL80211_RATE_INFO_MCS]); - - if (rinfo[NL80211_RATE_INFO_40_MHZ_WIDTH]) - e->rx_rate.is_40mhz = 1; - - if (rinfo[NL80211_RATE_INFO_SHORT_GI]) - e->rx_rate.is_short_gi = 1; - } - - if (sinfo[NL80211_STA_INFO_TX_BITRATE] && - !nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX, - sinfo[NL80211_STA_INFO_TX_BITRATE], rate_policy)) - { - if (rinfo[NL80211_RATE_INFO_BITRATE]) - e->tx_rate.rate = - nla_get_u16(rinfo[NL80211_RATE_INFO_BITRATE]) * 100; - - if (rinfo[NL80211_RATE_INFO_MCS]) - e->tx_rate.mcs = nla_get_u8(rinfo[NL80211_RATE_INFO_MCS]); - - if (rinfo[NL80211_RATE_INFO_40_MHZ_WIDTH]) - e->tx_rate.is_40mhz = 1; - - if (rinfo[NL80211_RATE_INFO_SHORT_GI]) - e->tx_rate.is_short_gi = 1; - } - } - - e->noise = 0; /* filled in by caller */ - arr->count++; - - return NL_SKIP; -} - -static int nl80211_get_assoclist(const char *ifname, char *buf, int *len) -{ - DIR *d; - int i, noise = 0; - struct dirent *de; - struct nl80211_msg_conveyor *req; - 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))) - { - req = nl80211_msg(de->d_name, NL80211_CMD_GET_STATION, - NLM_F_DUMP); - - if (req) - { - nl80211_send(req, nl80211_get_assoclist_cb, &arr); - nl80211_free(req); - } - } - } - - 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 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; - - req = nl80211_msg(ifname, NL80211_CMD_GET_WIPHY, 0); - if (req) - { - /* initialize the value pointer with channel for callback */ - dbm_max = ch_cur; - - nl80211_send(req, nl80211_get_txpwrlist_cb, &dbm_max); - nl80211_free(req); - } - - if (dbm_max > 0) - { - 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(const char *spec, - struct iwinfo_crypto_entry *c) -{ - if (strstr(spec, "WPA") || strstr(spec, "WEP")) - { - c->enabled = 1; - - if (strstr(spec, "WPA2-") && strstr(spec, "WPA-")) - c->wpa_version = 3; - - else if (strstr(spec, "WPA2")) - c->wpa_version = 2; - - else if (strstr(spec, "WPA")) - c->wpa_version = 1; - - else if (strstr(spec, "WEP")) - c->auth_algs = IWINFO_AUTH_OPEN | IWINFO_AUTH_SHARED; - - - if (strstr(spec, "PSK")) - c->auth_suites |= IWINFO_KMGMT_PSK; - - if (strstr(spec, "802.1X") || strstr(spec, "EAP")) - c->auth_suites |= IWINFO_KMGMT_8021x; - - if (strstr(spec, "WPA-NONE")) - c->auth_suites |= IWINFO_KMGMT_NONE; - - - if (strstr(spec, "TKIP")) - c->pair_ciphers |= IWINFO_CIPHER_TKIP; - - if (strstr(spec, "CCMP")) - c->pair_ciphers |= IWINFO_CIPHER_CCMP; - - if (strstr(spec, "WEP-40")) - c->pair_ciphers |= IWINFO_CIPHER_WEP40; - - if (strstr(spec, "WEP-104")) - c->pair_ciphers |= IWINFO_CIPHER_WEP104; - - c->group_ciphers = c->pair_ciphers; - } - else - { - c->enabled = 0; - } -} - - -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 */ - 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; - } - - 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] = { }, - [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 }, - [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 }, - [NL80211_BSS_INFORMATION_ELEMENTS] = { }, - [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] = { }, - }; - - 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_msg_conveyor *req; - struct nl80211_scanlist sl = { .e = (struct iwinfo_scanlist_entry *)buf }; - - req = nl80211_msg(ifname, NL80211_CMD_TRIGGER_SCAN, 0); - if (req) - { - nl80211_send(req, NULL, NULL); - nl80211_free(req); - } - - nl80211_wait("nl80211", "scan", NL80211_CMD_NEW_SCAN_RESULTS); - - req = nl80211_msg(ifname, NL80211_CMD_GET_SCAN, NLM_F_DUMP); - if (req) - { - nl80211_send(req, nl80211_get_scanlist_cb, &sl); - nl80211_free(req); - } - - *len = sl.len * sizeof(struct iwinfo_scanlist_entry); - return *len ? 0 : -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++] = '\e'; 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(const char *ifname, char *buf, int *len) -{ - int freq, rssi, qmax, count, mode; - char *res; - char ssid[129] = { 0 }; - char bssid[18] = { 0 }; - char cipher[256] = { 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) - { - count = nl80211_get_scanlist(res, buf, len); - nl80211_ifdel(res); - return count; - } - } - - struct iwinfo_scanlist_entry *e = (struct iwinfo_scanlist_entry *)buf; - - /* WPA supplicant */ - if ((res = nl80211_wpactl_info(ifname, "SCAN", "CTRL-EVENT-SCAN-RESULTS"))) - { - if ((res = nl80211_wpactl_info(ifname, "SCAN_RESULTS", NULL))) - { - nl80211_get_quality_max(ifname, &qmax); - - count = -1; - - do { - if (res[0] == '<') - { - /* skip log lines */ - goto nextline; - } - if (count < 0) - { - /* skip header line */ - count++; - goto nextline; - } - if (sscanf(res, "%17s %d %d %255s%*[ \t]%128[^\n]\n", - bssid, &freq, &rssi, cipher, ssid) < 5) - { - /* skip malformed lines */ - goto nextline; - } - /* 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 */ - wpasupp_ssid_decode(ssid, e->ssid, sizeof(e->ssid)); - - /* Mode (assume master) */ - if (strstr(cipher,"[MESH]")) - e->mode = IWINFO_OPMODE_MESHPOINT; - else - e->mode = IWINFO_OPMODE_MASTER; - - /* Channel */ - e->channel = nl80211_freq2channel(freq); - - /* 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(cipher, &e->crypto); - - count++; - e++; - - memset(ssid, 0, sizeof(ssid)); - memset(bssid, 0, sizeof(bssid)); - memset(cipher, 0, sizeof(cipher)); - - nextline: - /* advance to next line */ - while( *res && *res++ != '\n' ); - } - while( *res ); - - *len = count * sizeof(struct iwinfo_scanlist_entry); - 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; - - nl80211_get_scanlist_nl(ifname, buf, len); - iwinfo_ifdown(ifname); - return 0; - } - - /* Spawn a new scan interface */ - else - { - if (!(res = nl80211_ifadd(ifname))) - goto out; - - 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)) - { - 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)) - { - nl80211_get_scanlist_nl(res, buf, len); - iwinfo_ifdown(res); - iwinfo_ifup(ifname); - nl80211_hostapd_hup(ifname); - } - - out: - nl80211_ifdel(res); - return 0; - } - } - - 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 = arr->buf; - - 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 }, - }; - - 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), 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_PASSIVE_SCAN] || - freqs[NL80211_FREQUENCY_ATTR_NO_IBSS] || - freqs[NL80211_FREQUENCY_ATTR_RADAR] - ) ? 1 : 0; - - e++; - arr->count++; - } - } - - return NL_SKIP; -} - -static int nl80211_get_freqlist(const char *ifname, char *buf, int *len) -{ - struct nl80211_msg_conveyor *req; - struct nl80211_array_buf arr = { .buf = buf, .count = 0 }; - - req = nl80211_msg(ifname, NL80211_CMD_GET_WIPHY, 0); - if (req) - { - nl80211_send(req, nl80211_get_freqlist_cb, &arr); - nl80211_free(req); - } - - if (arr.count > 0) - { - *len = arr.count * sizeof(struct iwinfo_freqlist_entry); - return 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) -{ - int rv = -1; - struct nl80211_msg_conveyor *req; - - req = nl80211_msg(ifname, NL80211_CMD_GET_REG, 0); - if (req) - { - nl80211_send(req, nl80211_get_country_cb, buf); - nl80211_free(req); - - if (buf[0]) - rv = 0; - } - - return rv; -} - -static int nl80211_get_countrylist(const char *ifname, char *buf, int *len) -{ - int i, 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); - } - - *len = (count * sizeof(struct iwinfo_country_entry)); - return 0; -} - -static int nl80211_get_hwmodelist_cb(struct nl_msg *msg, void *arg) -{ - int *modes = 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; - - *modes = 0; - - 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]) - caps = nla_get_u16(bands[NL80211_BAND_ATTR_HT_CAPA]); - - /* Treat any nonzero capability as 11n */ - if (caps > 0) - *modes |= IWINFO_80211_N; - - if (bands[NL80211_BAND_ATTR_VHT_CAPA]) - vht_caps = nla_get_u32(bands[NL80211_BAND_ATTR_VHT_CAPA]); - - /* Treat any nonzero capability as 11ac */ - if (vht_caps > 0) - *modes |= IWINFO_80211_AC; - - 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; - - if (nla_get_u32(freqs[NL80211_FREQUENCY_ATTR_FREQ]) < 2485) - { - *modes |= IWINFO_80211_B; - *modes |= IWINFO_80211_G; - } - else if (!(*modes & IWINFO_80211_AC)) - { - *modes |= IWINFO_80211_A; - } - } - } - } - - return NL_SKIP; -} - -static int nl80211_get_hwmodelist(const char *ifname, int *buf) -{ - struct nl80211_msg_conveyor *req; - - req = nl80211_msg(ifname, NL80211_CMD_GET_WIPHY, 0); - if (req) - { - nl80211_send(req, nl80211_get_hwmodelist_cb, buf); - nl80211_free(req); - } - - return *buf ? 0 : -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]; - 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]; - struct nlattr *limit; - - nla_parse_nested(tb_comb, NL80211_BAND_ATTR_MAX, 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) -{ - struct nl80211_msg_conveyor *req; - - req = nl80211_msg(ifname, NL80211_CMD_GET_WIPHY, 0); - if (!req) - return -1; - - nl80211_send(req, nl80211_get_ifcomb_cb, buf); - nl80211_free(req); - return 0; -} - -static int nl80211_get_hardware_id(const char *ifname, char *buf) -{ - int rv; - char *res; - - /* 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) - { - rv = wext_ops.hardware_id(res, buf); - } - - /* Need to spawn a temporary iface for finding IDs */ - else if ((res = nl80211_ifadd(ifname)) != NULL) - { - rv = wext_ops.hardware_id(res, buf); - nl80211_ifdel(res); - } - } - else - { - rv = wext_ops.hardware_id(ifname, buf); - } - - /* Failed to obtain hardware IDs, search board config */ - if (rv) - { - rv = iwinfo_hardware_id_from_mtd((struct iwinfo_hardware_id *)buf); - } - - return rv; -} - -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; -} - -const struct iwinfo_ops nl80211_ops = { - .name = "nl80211", - .probe = nl80211_probe, - .channel = nl80211_get_channel, - .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, - .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, - .close = nl80211_close -}; |