From: Jo-Philipp Wich Date: Wed, 7 Sep 2011 04:17:00 +0000 (+0000) Subject: libiwinfo: rework nl80211 interface code, plug remaining memory leaks X-Git-Tag: 0.11.0~1789 X-Git-Url: https://git.archive.openwrt.org/?a=commitdiff_plain;ds=sidebyside;h=ebc7582205400edebbaf9d9d2ecdba4676096f76;p=project%2Fluci.git libiwinfo: rework nl80211 interface code, plug remaining memory leaks --- diff --git a/contrib/package/iwinfo/Makefile b/contrib/package/iwinfo/Makefile index cffa8f9be..014e7a31b 100644 --- a/contrib/package/iwinfo/Makefile +++ b/contrib/package/iwinfo/Makefile @@ -7,7 +7,7 @@ include $(TOPDIR)/rules.mk PKG_NAME:=libiwinfo -PKG_RELEASE:=15 +PKG_RELEASE:=16 PKG_BUILD_DIR := $(BUILD_DIR)/$(PKG_NAME) diff --git a/contrib/package/iwinfo/src/iwinfo_nl80211.c b/contrib/package/iwinfo/src/iwinfo_nl80211.c index 280714ee5..abaeb511d 100644 --- a/contrib/package/iwinfo/src/iwinfo_nl80211.c +++ b/contrib/package/iwinfo/src/iwinfo_nl80211.c @@ -34,16 +34,16 @@ static int nl80211_init(void) { int err, fd; - if( !nls ) + if (!nls) { nls = malloc(sizeof(struct nl80211_state)); - if( !nls ) { + if (!nls) { err = -ENOMEM; goto err; } nls->nl_sock = nl_socket_alloc(); - if( !nls->nl_sock ) { + if (!nls->nl_sock) { err = -ENOMEM; goto err; } @@ -54,7 +54,7 @@ static int nl80211_init(void) } fd = nl_socket_get_fd(nls->nl_sock); - if( fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | FD_CLOEXEC) < 0 ) + if (fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | FD_CLOEXEC) < 0) { err = -EINVAL; goto err; @@ -66,7 +66,7 @@ static int nl80211_init(void) } nls->nl80211 = genl_ctrl_search_by_name(nls->nl_cache, "nl80211"); - if( !nls->nl80211 ) + if (!nls->nl80211) { err = -ENOENT; goto err; @@ -105,28 +105,17 @@ static int nl80211_msg_ack(struct nl_msg *msg, void *arg) static int nl80211_msg_response(struct nl_msg *msg, void *arg) { - struct nl80211_msg_conveyor *cv = arg; - - nlmsg_get(msg); - - cv->msg = msg; - cv->hdr = nlmsg_data(nlmsg_hdr(cv->msg)); - - nla_parse(cv->attr, NL80211_ATTR_MAX, - genlmsg_attrdata(cv->hdr, 0), - genlmsg_attrlen(cv->hdr, 0), NULL); - return NL_SKIP; } static void nl80211_free(struct nl80211_msg_conveyor *cv) { - if( cv ) + if (cv) { - if( cv->cb ) + if (cv->cb) nl_cb_put(cv->cb); - if( cv->msg ) + if (cv->msg) nlmsg_free(cv->msg); cv->cb = NULL; @@ -142,40 +131,38 @@ static struct nl80211_msg_conveyor * nl80211_msg(const char *ifname, int cmd, in struct nl_msg *req = NULL; struct nl_cb *cb = NULL; - if( nl80211_init() < 0 ) + if (nl80211_init() < 0) goto err; - if( !strncmp(ifname, "phy", 3) ) + if (!strncmp(ifname, "phy", 3)) phyidx = atoi(&ifname[3]); - else if( !strncmp(ifname, "radio", 5) ) + else if (!strncmp(ifname, "radio", 5)) phyidx = atoi(&ifname[5]); - else if( !strncmp(ifname, "mon.", 4) ) + else if (!strncmp(ifname, "mon.", 4)) ifidx = if_nametoindex(&ifname[4]); else ifidx = if_nametoindex(ifname); - if( (ifidx < 0) && (phyidx < 0) ) + if ((ifidx < 0) && (phyidx < 0)) return NULL; req = nlmsg_alloc(); - if( !req ) + if (!req) goto err; cb = nl_cb_alloc(NL_CB_DEFAULT); - if( !cb ) + if (!cb) goto err; genlmsg_put(req, 0, 0, genl_family_get_id(nls->nl80211), 0, flags, cmd, 0); - if( ifidx > -1 ) + if (ifidx > -1) NLA_PUT_U32(req, NL80211_ATTR_IFINDEX, ifidx); - if( phyidx > -1 ) + if (phyidx > -1) NLA_PUT_U32(req, NL80211_ATTR_WIPHY, phyidx); - nlmsg_get(req); - cv.msg = req; cv.cb = cb; cv.custom_cb = 0; @@ -184,10 +171,10 @@ static struct nl80211_msg_conveyor * nl80211_msg(const char *ifname, int cmd, in err: nla_put_failure: - if( cb ) + if (cb) nl_cb_put(cb); - if( req ) + if (req) nlmsg_free(req); return NULL; @@ -205,10 +192,10 @@ static struct nl80211_msg_conveyor * nl80211_send(struct nl80211_msg_conveyor *c static struct nl80211_msg_conveyor rcv; int err = 1; - if( !cv->custom_cb ) + if (!cv->custom_cb) 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 ) + 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); @@ -227,6 +214,17 @@ err: 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_freq2channel(int freq) { if (freq == 2484) @@ -250,28 +248,28 @@ static char * nl80211_getval(const char *ifname, const char *buf, const char *ke for( i = 0, len = strlen(buf); i < len; i++ ) { - if( !lkey[0] && (buf[i] == ' ' || buf[i] == '\t') ) + if (!lkey[0] && (buf[i] == ' ' || buf[i] == '\t')) { ln++; } - else if( !lkey[0] && (buf[i] == '=') ) + else if (!lkey[0] && (buf[i] == '=')) { - if( (&buf[i] - ln) > 0 ) + if ((&buf[i] - ln) > 0) memcpy(lkey, ln, min(sizeof(lkey) - 1, &buf[i] - ln)); } - else if( buf[i] == '\n' ) + else if (buf[i] == '\n') { - if( lkey[0] ) + if (lkey[0]) { memcpy(lval, ln + strlen(lkey) + 1, min(sizeof(lval) - 1, &buf[i] - ln - strlen(lkey) - 1)); - if( (ifname != NULL ) && + if ((ifname != NULL) && (!strcmp(lkey, "interface") || !strcmp(lkey, "bss")) ) { matched_if = !strcmp(lval, ifname); } - else if( matched_if && !strcmp(lkey, key) ) + else if (matched_if && !strcmp(lkey, key)) { return lval; } @@ -286,24 +284,29 @@ static char * nl80211_getval(const char *ifname, const char *buf, const char *ke 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]) + sprintf(buf, "%s", nla_data(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, *res; + struct nl80211_msg_conveyor *req; req = nl80211_msg(ifname, NL80211_CMD_GET_WIPHY, 0); - if( req ) + if (req) { - res = nl80211_send(req); - if( res ) - { - if( res->attr[NL80211_ATTR_WIPHY_NAME] ) - { - snprintf(phy, sizeof(phy), "%s", - nla_get_string(res->attr[NL80211_ATTR_WIPHY_NAME])); - } - nl80211_free(res); - } + nl80211_cb(req, nl80211_ifname2phy_cb, phy); + nl80211_send(req); nl80211_free(req); } @@ -317,11 +320,11 @@ static char * nl80211_hostapd_info(const char *ifname) static char buf[4096] = { 0 }; FILE *conf; - if( (phy = nl80211_ifname2phy(ifname)) != NULL ) + if ((phy = nl80211_ifname2phy(ifname)) != NULL) { snprintf(path, sizeof(path), "/var/run/hostapd-%s.conf", phy); - if( (conf = fopen(path, "r")) != NULL ) + if ((conf = fopen(path, "r")) != NULL) { fread(buf, sizeof(buf) - 1, 1, conf); fclose(conf); @@ -344,10 +347,10 @@ static inline int nl80211_wpactl_recv(int sock, char *buf, int blen) memset(buf, 0, blen); - if( select(sock + 1, &rfds, NULL, NULL, &tv) < 0 ) + if (select(sock + 1, &rfds, NULL, NULL, &tv) < 0) return -1; - if( !FD_ISSET(sock, &rfds) ) + if (!FD_ISSET(sock, &rfds)) return -1; return recv(sock, buf, blen, 0); @@ -367,30 +370,30 @@ static char * nl80211_wpactl_info(const char *ifname, const char *cmd, sock = socket(PF_UNIX, SOCK_DGRAM, 0); - if( sock < 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 ) + if (fcntl(sock, F_SETFD, fcntl(sock, F_GETFD) | FD_CLOEXEC) < 0) goto out; - if( connect(sock, (struct sockaddr *) &remote, remote_length) ) + 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) ) + if (bind(sock, (struct sockaddr *) &local, local_length)) goto out; send(sock, "ATTACH", 6, 0); - if( nl80211_wpactl_recv(sock, buffer, sizeof(buffer)) <= 0 ) + if (nl80211_wpactl_recv(sock, buffer, sizeof(buffer)) <= 0) goto out; @@ -398,15 +401,15 @@ static char * nl80211_wpactl_info(const char *ifname, const char *cmd, while( numtry++ < 5 ) { - if( nl80211_wpactl_recv(sock, buffer, sizeof(buffer)) <= 0 ) + if (nl80211_wpactl_recv(sock, buffer, sizeof(buffer)) <= 0) { - if( event ) + if (event) continue; break; } - if( (!event && buffer[0] != '<') || strstr(buffer, event) ) + if ((!event && buffer[0] != '<') || strstr(buffer, event)) break; } @@ -415,7 +418,7 @@ static char * nl80211_wpactl_info(const char *ifname, const char *cmd, out: close(sock); - if( local.sun_family ) + if (local.sun_family) unlink(local.sun_path); return rv; @@ -427,9 +430,9 @@ static inline int nl80211_readint(const char *path) int rv = -1; char buffer[16]; - if( (fd = open(path, O_RDONLY)) > -1 ) + if ((fd = open(path, O_RDONLY)) > -1) { - if( read(fd, buffer, sizeof(buffer)) > 0 ) + if (read(fd, buffer, sizeof(buffer)) > 0) rv = atoi(buffer); close(fd); @@ -447,23 +450,23 @@ static char * nl80211_phy2ifname(const char *ifname) DIR *d; struct dirent *e; - if( !ifname ) + if (!ifname) return NULL; - else if( !strncmp(ifname, "phy", 3) ) + else if (!strncmp(ifname, "phy", 3)) phyidx = atoi(&ifname[3]); - else if( !strncmp(ifname, "radio", 5) ) + else if (!strncmp(ifname, "radio", 5)) phyidx = atoi(&ifname[5]); - if( phyidx > -1 ) + if (phyidx > -1) { - if( (d = opendir("/sys/class/net")) != NULL ) + 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 ) + if (nl80211_readint(buffer) == phyidx) { snprintf(buffer, sizeof(buffer), "/sys/class/net/%s/ifindex", e->d_name); @@ -492,19 +495,16 @@ static char * nl80211_ifadd(const char *ifname) struct nl80211_msg_conveyor *req, *res; req = nl80211_msg(ifname, NL80211_CMD_NEW_INTERFACE, 0); - if( req ) + 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); - res = nl80211_send(req); - if( res ) - { - rv = nif; - nl80211_free(res); - } + nl80211_send(req); + + rv = nif; nla_put_failure: nl80211_free(req); @@ -518,11 +518,11 @@ static void nl80211_ifdel(const char *ifname) struct nl80211_msg_conveyor *req; req = nl80211_msg(ifname, NL80211_CMD_DEL_INTERFACE, 0); - if( req ) + if (req) { NLA_PUT_STRING(req->msg, NL80211_ATTR_IFNAME, ifname); - nl80211_free(nl80211_send(req)); + nl80211_send(req); nla_put_failure: nl80211_free(req); @@ -535,18 +535,18 @@ static void nl80211_hostapd_hup(const char *ifname) char buf[32]; char *phy = nl80211_ifname2phy(ifname); - if( phy ) + if (phy) { snprintf(buf, sizeof(buf), "/var/run/wifi-%s.pid", phy); - if( (fd = open(buf, O_RDONLY)) > 0 ) + if ((fd = open(buf, O_RDONLY)) > 0) { - if( read(fd, buf, sizeof(buf)) > 0 ) + if (read(fd, buf, sizeof(buf)) > 0) pid = atoi(buf); close(fd); } - if( pid > 0 ) + if (pid > 0) kill(pid, 1); } } @@ -559,12 +559,12 @@ int nl80211_probe(const char *ifname) void nl80211_close(void) { - if( nls ) + if (nls) { - if( nls->nl_sock ) + if (nls->nl_sock) nl_socket_free(nls->nl_sock); - if( nls->nl_cache ) + if (nls->nl_cache) nl_cache_free(nls->nl_cache); free(nls); @@ -581,7 +581,7 @@ int nl80211_get_ssid(const char *ifname, char *buf) { char *ssid; - if( !wext_get_ssid(ifname, buf) ) + if (!wext_get_ssid(ifname, buf)) { return 0; } @@ -600,12 +600,12 @@ int nl80211_get_bssid(const char *ifname, char *buf) char *bssid; unsigned char mac[6]; - if( !wext_get_bssid(ifname, buf) ) + if (!wext_get_bssid(ifname, buf)) { return 0; } - else if( (bssid = nl80211_hostapd_info(ifname)) && - (bssid = nl80211_getval(ifname, bssid, "bssid")) ) + else if((bssid = nl80211_hostapd_info(ifname)) && + (bssid = nl80211_getval(ifname, bssid, "bssid"))) { mac[0] = strtol(&bssid[0], NULL, 16); mac[1] = strtol(&bssid[3], NULL, 16); @@ -627,10 +627,10 @@ int nl80211_get_channel(const char *ifname, int *buf) { char *first; - if( !wext_get_channel(ifname, buf) ) + if (!wext_get_channel(ifname, buf)) return 0; - else if( (first = nl80211_phy2ifname(nl80211_ifname2phy(ifname))) != NULL ) + else if ((first = nl80211_phy2ifname(nl80211_ifname2phy(ifname))) != NULL) return wext_get_channel(first, buf); return -1; @@ -640,10 +640,10 @@ int nl80211_get_frequency(const char *ifname, int *buf) { char *first; - if( !wext_get_frequency(ifname, buf) ) + if (!wext_get_frequency(ifname, buf)) return 0; - else if( (first = nl80211_phy2ifname(nl80211_ifname2phy(ifname))) != NULL ) + else if ((first = nl80211_phy2ifname(nl80211_ifname2phy(ifname))) != NULL) return wext_get_frequency(first, buf); return -1; @@ -660,9 +660,7 @@ 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 genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); - struct nlattr *attr[NL80211_ATTR_MAX + 1]; + struct nlattr **attr = nl80211_parse(msg); struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1]; struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1]; @@ -686,26 +684,23 @@ static int nl80211_fill_signal_cb(struct nl_msg *msg, void *arg) [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG }, }; - nla_parse(attr, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), - genlmsg_attrlen(gnlh, 0), NULL); - - if( attr[NL80211_ATTR_STA_INFO] ) + 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] ) + 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 (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] ) + if (rinfo[NL80211_RATE_INFO_BITRATE]) { mbit = nla_get_u16(rinfo[NL80211_RATE_INFO_BITRATE]); rr->rate = rr->rate @@ -742,7 +737,7 @@ static void nl80211_fill_signal(const char *ifname, struct nl80211_rssi_rate *r) if (req) { nl80211_cb(req, nl80211_fill_signal_cb, r); - nl80211_free(nl80211_send(req)); + nl80211_send(req); nl80211_free(req); } } @@ -756,7 +751,7 @@ int nl80211_get_bitrate(const char *ifname, int *buf) { struct nl80211_rssi_rate rr; - if( !wext_get_bitrate(ifname, buf) ) + if (!wext_get_bitrate(ifname, buf)) return 0; nl80211_fill_signal(ifname, &rr); @@ -774,7 +769,7 @@ int nl80211_get_signal(const char *ifname, int *buf) { struct nl80211_rssi_rate rr; - if( !wext_get_signal(ifname, buf) ) + if (!wext_get_signal(ifname, buf)) return 0; nl80211_fill_signal(ifname, &rr); @@ -791,8 +786,7 @@ int nl80211_get_signal(const char *ifname, int *buf) static int nl80211_get_noise_cb(struct nl_msg *msg, void *arg) { int8_t *noise = arg; - struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); - struct nlattr *tb[NL80211_ATTR_MAX + 1]; + struct nlattr **tb = nl80211_parse(msg); struct nlattr *si[NL80211_SURVEY_INFO_MAX + 1]; static struct nla_policy sp[NL80211_SURVEY_INFO_MAX + 1] = { @@ -800,9 +794,6 @@ static int nl80211_get_noise_cb(struct nl_msg *msg, void *arg) [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, }; - nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), - genlmsg_attrlen(gnlh, 0), NULL); - if (!tb[NL80211_ATTR_SURVEY_INFO]) return NL_SKIP; @@ -831,7 +822,7 @@ int nl80211_get_noise(const char *ifname, int *buf) noise = 0; nl80211_cb(req, nl80211_get_noise_cb, &noise); - nl80211_free(nl80211_send(req)); + nl80211_send(req); nl80211_free(req); if (noise) @@ -848,15 +839,15 @@ int nl80211_get_quality(const char *ifname, int *buf) { int signal; - if( wext_get_quality(ifname, buf) ) + if (wext_get_quality(ifname, buf)) { *buf = 0; - if( !nl80211_get_signal(ifname, &signal) ) + if (!nl80211_get_signal(ifname, &signal)) { /* A positive signal level is usually just a quality * value, pass through as-is */ - if( signal >= 0 ) + if (signal >= 0) { *buf = signal; } @@ -866,9 +857,9 @@ int nl80211_get_quality(const char *ifname, int *buf) * by adding 110 to the signal level */ else { - if( signal < -110 ) + if (signal < -110) signal = -110; - else if( signal > -40 ) + else if (signal > -40) signal = -40; *buf = (signal + 110); @@ -881,7 +872,7 @@ int nl80211_get_quality(const char *ifname, int *buf) int nl80211_get_quality_max(const char *ifname, int *buf) { - if( wext_get_quality_max(ifname, buf) ) + if (wext_get_quality_max(ifname, buf)) /* The cfg80211 wext compat layer assumes a maximum * quality of 70 */ *buf = 70; @@ -901,12 +892,12 @@ int nl80211_get_encryption(const char *ifname, char *buf) (val = nl80211_getval(NULL, res, "pairwise_cipher")) ) { /* WEP */ - if( strstr(val, "WEP") ) + if (strstr(val, "WEP")) { - if( strstr(val, "WEP-40") ) + if (strstr(val, "WEP-40")) c->pair_ciphers |= IWINFO_CIPHER_WEP40; - else if( strstr(val, "WEP-104") ) + else if (strstr(val, "WEP-104")) c->pair_ciphers |= IWINFO_CIPHER_WEP104; c->enabled = 1; @@ -919,57 +910,57 @@ int nl80211_get_encryption(const char *ifname, char *buf) /* WPA */ else { - if( strstr(val, "TKIP") ) + if (strstr(val, "TKIP")) c->pair_ciphers |= IWINFO_CIPHER_TKIP; - else if( strstr(val, "CCMP") ) + else if (strstr(val, "CCMP")) c->pair_ciphers |= IWINFO_CIPHER_CCMP; - else if( strstr(val, "NONE") ) + else if (strstr(val, "NONE")) c->pair_ciphers |= IWINFO_CIPHER_NONE; - else if( strstr(val, "WEP-40") ) + else if (strstr(val, "WEP-40")) c->pair_ciphers |= IWINFO_CIPHER_WEP40; - else if( strstr(val, "WEP-104") ) + else if (strstr(val, "WEP-104")) c->pair_ciphers |= IWINFO_CIPHER_WEP104; - if( (val = nl80211_getval(NULL, res, "group_cipher")) ) + if ((val = nl80211_getval(NULL, res, "group_cipher"))) { - if( strstr(val, "TKIP") ) + if (strstr(val, "TKIP")) c->group_ciphers |= IWINFO_CIPHER_TKIP; - else if( strstr(val, "CCMP") ) + else if (strstr(val, "CCMP")) c->group_ciphers |= IWINFO_CIPHER_CCMP; - else if( strstr(val, "NONE") ) + else if (strstr(val, "NONE")) c->group_ciphers |= IWINFO_CIPHER_NONE; - else if( strstr(val, "WEP-40") ) + else if (strstr(val, "WEP-40")) c->group_ciphers |= IWINFO_CIPHER_WEP40; - else if( strstr(val, "WEP-104") ) + else if (strstr(val, "WEP-104")) c->group_ciphers |= IWINFO_CIPHER_WEP104; } - if( (val = nl80211_getval(NULL, res, "key_mgmt")) ) + if ((val = nl80211_getval(NULL, res, "key_mgmt"))) { - if( strstr(val, "WPA2") ) + if (strstr(val, "WPA2")) c->wpa_version = 2; - else if( strstr(val, "WPA") ) + else if (strstr(val, "WPA")) c->wpa_version = 1; - if( strstr(val, "PSK") ) + if (strstr(val, "PSK")) c->auth_suites |= IWINFO_KMGMT_PSK; - else if( strstr(val, "EAP") || strstr(val, "802.1X") ) + else if (strstr(val, "EAP") || strstr(val, "802.1X")) c->auth_suites |= IWINFO_KMGMT_8021x; - else if( strstr(val, "NONE") ) + else if (strstr(val, "NONE")) c->auth_suites |= IWINFO_KMGMT_NONE; } @@ -980,35 +971,35 @@ int nl80211_get_encryption(const char *ifname, char *buf) } /* Hostapd */ - else if( (res = nl80211_hostapd_info(ifname)) ) + else if ((res = nl80211_hostapd_info(ifname))) { - if( (val = nl80211_getval(ifname, res, "wpa")) != NULL ) + 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") ) + if (!val || strstr(val, "PSK")) c->auth_suites |= IWINFO_KMGMT_PSK; - if( val && strstr(val, "EAP") ) + if (val && strstr(val, "EAP")) c->auth_suites |= IWINFO_KMGMT_8021x; - if( val && strstr(val, "NONE") ) + if (val && strstr(val, "NONE")) c->auth_suites |= IWINFO_KMGMT_NONE; - if( (val = nl80211_getval(ifname, res, "wpa_pairwise")) != NULL ) + if ((val = nl80211_getval(ifname, res, "wpa_pairwise")) != NULL) { - if( strstr(val, "TKIP") ) + if (strstr(val, "TKIP")) c->pair_ciphers |= IWINFO_CIPHER_TKIP; - if( strstr(val, "CCMP") ) + if (strstr(val, "CCMP")) c->pair_ciphers |= IWINFO_CIPHER_CCMP; - if( strstr(val, "NONE") ) + if (strstr(val, "NONE")) c->pair_ciphers |= IWINFO_CIPHER_NONE; } - if( (val = nl80211_getval(ifname, res, "auth_algs")) != NULL ) + if ((val = nl80211_getval(ifname, res, "auth_algs")) != NULL) { switch(atoi(val)) { case 1: @@ -1032,12 +1023,12 @@ int nl80211_get_encryption(const char *ifname, char *buf) { snprintf(k, sizeof(k), "wep_key%d", i); - if( (val = nl80211_getval(ifname, res, k)) ) + if ((val = nl80211_getval(ifname, res, k))) { - if( (strlen(val) == 5) || (strlen(val) == 10) ) + if ((strlen(val) == 5) || (strlen(val) == 10)) c->pair_ciphers |= IWINFO_CIPHER_WEP40; - else if( (strlen(val) == 13) || (strlen(val) == 26) ) + else if ((strlen(val) == 13) || (strlen(val) == 26)) c->pair_ciphers |= IWINFO_CIPHER_WEP104; } } @@ -1055,9 +1046,9 @@ int nl80211_get_encryption(const char *ifname, char *buf) static int nl80211_get_assoclist_cb(struct nl_msg *msg, void *arg) { - struct nl80211_assoc_count *ac = arg; - struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); - struct nlattr *attr[NL80211_ATTR_MAX + 1]; + struct nl80211_arraybuf *arr = arg; + struct iwinfo_assoclist_entry *e = arr->buf; + struct nlattr **attr = nl80211_parse(msg); struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1]; static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = { @@ -1073,25 +1064,24 @@ static int nl80211_get_assoclist_cb(struct nl_msg *msg, void *arg) [NL80211_STA_INFO_PLINK_STATE] = { .type = NLA_U8 }, }; - nla_parse(attr, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), - genlmsg_attrlen(gnlh, 0), NULL); + /* advance to end of array */ + e += arr->count; - if( attr[NL80211_ATTR_MAC] ) - memcpy(ac->entry->mac, nla_data(attr[NL80211_ATTR_MAC]), 6); + if (attr[NL80211_ATTR_MAC]) + memcpy(e->mac, nla_data(attr[NL80211_ATTR_MAC]), 6); - if( attr[NL80211_ATTR_STA_INFO] ) + if (attr[NL80211_ATTR_STA_INFO]) { - if( !nla_parse_nested(sinfo, NL80211_STA_INFO_MAX, - attr[NL80211_ATTR_STA_INFO], stats_policy) ) + if (!nla_parse_nested(sinfo, NL80211_STA_INFO_MAX, + attr[NL80211_ATTR_STA_INFO], stats_policy)) { - if( sinfo[NL80211_STA_INFO_SIGNAL] ) - ac->entry->signal = nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]); + if (sinfo[NL80211_STA_INFO_SIGNAL]) + e->signal = nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]); } } - ac->entry->noise = ac->noise; - ac->entry++; - ac->count++; + e->noise = 0; /* filled in by caller */ + arr->count++; return NL_SKIP; } @@ -1099,17 +1089,14 @@ static int nl80211_get_assoclist_cb(struct nl_msg *msg, void *arg) int nl80211_get_assoclist(const char *ifname, char *buf, int *len) { DIR *d; + int i, noise = 0; struct dirent *de; - struct nl80211_assoc_count ac; struct nl80211_msg_conveyor *req; + struct nl80211_arraybuf arr = { .buf = buf, .count = 0 }; + struct iwinfo_assoclist_entry *e; if ((d = opendir("/sys/class/net")) != NULL) { - ac.count = 0; - ac.entry = (struct iwinfo_assoclist_entry *)buf; - - nl80211_get_noise(ifname, &ac.noise); - while ((de = readdir(d)) != NULL) { if (!strncmp(de->d_name, ifname, strlen(ifname)) && @@ -1121,31 +1108,37 @@ int nl80211_get_assoclist(const char *ifname, char *buf, int *len) if (req) { - nl80211_cb(req, nl80211_get_assoclist_cb, &ac); - nl80211_free(nl80211_send(req)); + nl80211_cb(req, nl80211_get_assoclist_cb, &arr); + nl80211_send(req); nl80211_free(req); } + + break; } } closedir(d); - *len = (ac.count * sizeof(struct iwinfo_assoclist_entry)); + 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; } -int nl80211_get_txpwrlist(const char *ifname, char *buf, int *len) +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; - int dbm_max = -1, dbm_cur, dbm_cnt; - struct nl80211_msg_conveyor *req, *res; + + 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; - struct iwinfo_txpwrlist_entry entry; static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = { [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 }, @@ -1156,51 +1149,63 @@ int nl80211_get_txpwrlist(const char *ifname, char *buf, int *len) [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 }, }; - if( nl80211_get_channel(ifname, &ch_cur) ) - ch_cur = 0; + ch_cur = *dbm_max; /* value int* is initialized with channel by caller */ + *dbm_max = -1; - req = nl80211_msg(ifname, NL80211_CMD_GET_WIPHY, 0); - if( req ) + nla_for_each_nested(band, attr[NL80211_ATTR_WIPHY_BANDS], bands_remain) { - res = nl80211_send(req); - if( res ) + 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_for_each_nested(band, - res->attr[NL80211_ATTR_WIPHY_BANDS], bands_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] ) { - nla_parse(bands, NL80211_BAND_ATTR_MAX, nla_data(band), - nla_len(band), NULL); + *dbm_max = (int)(0.01 * nla_get_u32( + freqs[NL80211_FREQUENCY_ATTR_MAX_TX_POWER])); - 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); + break; + } + } + } - ch_cmp = nl80211_freq2channel( - nla_get_u32(freqs[NL80211_FREQUENCY_ATTR_FREQ])); + return NL_SKIP; +} - 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])); +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; - break; - } - } - } + if (nl80211_get_channel(ifname, &ch_cur)) + ch_cur = 0; - nl80211_free(res); - } + req = nl80211_msg(ifname, NL80211_CMD_GET_WIPHY, 0); + if (req) + { + /* initialize the value pointer with channel for callback */ + dbm_max = ch_cur; + + nl80211_cb(req, nl80211_get_txpwrlist_cb, &dbm_max); + nl80211_send(req); nl80211_free(req); } - if( dbm_max > -1 ) + if (dbm_max > -1) { - for( dbm_cur = 0, dbm_cnt = 0; + for (dbm_cur = 0, dbm_cnt = 0; dbm_cur < dbm_max; - dbm_cur++, dbm_cnt++ ) + dbm_cur++, dbm_cnt++) { entry.dbm = dbm_cur; entry.mw = iwinfo_dbm2mw(dbm_cur); @@ -1224,43 +1229,43 @@ int nl80211_get_txpwrlist(const char *ifname, char *buf, int *len) static void nl80211_get_scancrypto(const char *spec, struct iwinfo_crypto_entry *c) { - if( strstr(spec, "WPA") || strstr(spec, "WEP") ) + if (strstr(spec, "WPA") || strstr(spec, "WEP")) { c->enabled = 1; - if( strstr(spec, "WPA2-") && strstr(spec, "WPA-") ) + if (strstr(spec, "WPA2-") && strstr(spec, "WPA-")) c->wpa_version = 3; - else if( strstr(spec, "WPA2") ) + else if (strstr(spec, "WPA2")) c->wpa_version = 2; - else if( strstr(spec, "WPA") ) + else if (strstr(spec, "WPA")) c->wpa_version = 1; - else if( strstr(spec, "WEP") ) + else if (strstr(spec, "WEP")) c->auth_algs = IWINFO_AUTH_OPEN | IWINFO_AUTH_SHARED; - if( strstr(spec, "PSK") ) + if (strstr(spec, "PSK")) c->auth_suites |= IWINFO_KMGMT_PSK; - if( strstr(spec, "802.1X") || strstr(spec, "EAP") ) + if (strstr(spec, "802.1X") || strstr(spec, "EAP")) c->auth_suites |= IWINFO_KMGMT_8021x; - if( strstr(spec, "WPA-NONE") ) + if (strstr(spec, "WPA-NONE")) c->auth_suites |= IWINFO_KMGMT_NONE; - if( strstr(spec, "TKIP") ) + if (strstr(spec, "TKIP")) c->pair_ciphers |= IWINFO_CIPHER_TKIP; - if( strstr(spec, "CCMP") ) + if (strstr(spec, "CCMP")) c->pair_ciphers |= IWINFO_CIPHER_CCMP; - if( strstr(spec, "WEP-40") ) + if (strstr(spec, "WEP-40")) c->pair_ciphers |= IWINFO_CIPHER_WEP40; - if( strstr(spec, "WEP-104") ) + if (strstr(spec, "WEP-104")) c->pair_ciphers |= IWINFO_CIPHER_WEP104; c->group_ciphers = c->pair_ciphers; @@ -1280,16 +1285,16 @@ int nl80211_get_scanlist(const char *ifname, char *buf, int *len) char cipher[256] = { 0 }; /* Got a radioX pseudo interface, find some interface on it or create one */ - if( !strncmp(ifname, "radio", 5) ) + if (!strncmp(ifname, "radio", 5)) { /* Reuse existing interface */ - if( (res = nl80211_phy2ifname(ifname)) != NULL ) + 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 ) + else if ((res = nl80211_ifadd(ifname)) != NULL) { count = nl80211_get_scanlist(res, buf, len); nl80211_ifdel(res); @@ -1300,9 +1305,9 @@ int nl80211_get_scanlist(const char *ifname, char *buf, int *len) 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", "CTRL-EVENT-SCAN-RESULTS"))) { - if( (res = nl80211_wpactl_info(ifname, "SCAN_RESULTS", NULL)) ) + if ((res = nl80211_wpactl_info(ifname, "SCAN_RESULTS", NULL))) { nl80211_get_quality_max(ifname, &qmax); @@ -1336,14 +1341,14 @@ int nl80211_get_scanlist(const char *ifname, char *buf, int *len) e->signal = rssi; /* Quality */ - if( rssi < 0 ) + 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 ) + if (rssi < -110) rssi = -110; - else if( rssi > -40 ) + else if (rssi > -40) rssi = -40; e->quality = (rssi + 110); @@ -1379,9 +1384,9 @@ int nl80211_get_scanlist(const char *ifname, char *buf, int *len) else { /* Got a temp interface, don't create yet another one */ - if( !strncmp(ifname, "tmp.", 4) ) + if (!strncmp(ifname, "tmp.", 4)) { - if( !iwinfo_ifup(ifname) ) + if (!iwinfo_ifup(ifname)) return -1; wext_get_scanlist(ifname, buf, len); @@ -1392,15 +1397,15 @@ int nl80211_get_scanlist(const char *ifname, char *buf, int *len) /* Spawn a new scan interface */ else { - if( !(res = nl80211_ifadd(ifname)) ) + if (!(res = nl80211_ifadd(ifname))) goto out; - if( !iwinfo_ifmac(res) ) + if (!iwinfo_ifmac(res)) goto out; /* 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) ) + if (iwinfo_ifup(res)) { wext_get_scanlist(res, buf, len); iwinfo_ifdown(res); @@ -1408,7 +1413,7 @@ int nl80211_get_scanlist(const char *ifname, char *buf, int *len) /* driver cannot create secondary interface, take down ap * during scan */ - else if( iwinfo_ifdown(ifname) && iwinfo_ifup(res) ) + else if (iwinfo_ifdown(ifname) && iwinfo_ifup(res)) { wext_get_scanlist(res, buf, len); iwinfo_ifdown(res); @@ -1425,83 +1430,108 @@ int nl80211_get_scanlist(const char *ifname, char *buf, int *len) return -1; } -int nl80211_get_freqlist(const char *ifname, char *buf, int *len) +static int nl80211_get_freqlist_cb(struct nl_msg *msg, void *arg) { - int count = 0, bands_remain, freqs_remain; - struct nl80211_msg_conveyor *req, *res; + int bands_remain, freqs_remain; + + struct nl80211_arraybuf *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; - struct iwinfo_freqlist_entry *e = (struct iwinfo_freqlist_entry *)buf; - req = nl80211_msg(ifname, NL80211_CMD_GET_WIPHY, 0); - if( req ) + 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) { - res = nl80211_send(req); - if( res && res->attr[NL80211_ATTR_WIPHY_BANDS] ) - { - nla_for_each_nested(band, - res->attr[NL80211_ATTR_WIPHY_BANDS], bands_remain) - { - nla_parse(bands, NL80211_BAND_ATTR_MAX, nla_data(band), - nla_len(band), NULL); + 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); + 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; + 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->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->restricted = ( + freqs[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] || + freqs[NL80211_FREQUENCY_ATTR_NO_IBSS] || + freqs[NL80211_FREQUENCY_ATTR_RADAR] + ) ? 1 : 0; - e++; - count++; - } - } - nl80211_free(res); + e++; + arr->count++; } + } + + return NL_SKIP; +} + +int nl80211_get_freqlist(const char *ifname, char *buf, int *len) +{ + struct nl80211_msg_conveyor *req; + struct nl80211_arraybuf arr = { .buf = buf, .count = 0 }; + + req = nl80211_msg(ifname, NL80211_CMD_GET_WIPHY, 0); + if (req) + { + nl80211_cb(req, nl80211_get_freqlist_cb, &arr); + nl80211_send(req); nl80211_free(req); } - if( count > 0 ) + if (arr.count > 0) { - *len = count * sizeof(struct iwinfo_freqlist_entry); + *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; +} + int nl80211_get_country(const char *ifname, char *buf) { int rv = -1; - struct nl80211_msg_conveyor *req, *res; + struct nl80211_msg_conveyor *req; req = nl80211_msg(ifname, NL80211_CMD_GET_REG, 0); - if( req ) + if (req) { - res = nl80211_send(req); - if( res ) - { - if( res->attr[NL80211_ATTR_REG_ALPHA2] ) - { - memcpy(buf, nla_data(res->attr[NL80211_ATTR_REG_ALPHA2]), 2); - rv = 0; - } - nl80211_free(res); - } + nl80211_cb(req, nl80211_get_country_cb, buf); + nl80211_send(req); nl80211_free(req); + + if (buf[0]) + rv = 0; } return rv; @@ -1524,56 +1554,66 @@ int nl80211_get_countrylist(const char *ifname, char *buf, int *len) return 0; } -int nl80211_get_hwmodelist(const char *ifname, int *buf) +static int nl80211_get_hwmodelist_cb(struct nl_msg *msg, void *arg) { + int *modes = arg; int bands_remain, freqs_remain; - struct nl80211_msg_conveyor *req, *res; + uint16_t 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; - uint16_t caps = 0; - req = nl80211_msg(ifname, NL80211_CMD_GET_WIPHY, 0); - if( req ) + *modes = 0; + + if (attr[NL80211_ATTR_WIPHY_BANDS]) { - res = nl80211_send(req); - if( res && res->attr[NL80211_ATTR_WIPHY_BANDS] ) + nla_for_each_nested(band, attr[NL80211_ATTR_WIPHY_BANDS], bands_remain) { - nla_for_each_nested(band, - res->attr[NL80211_ATTR_WIPHY_BANDS], bands_remain) - { - nla_parse(bands, NL80211_BAND_ATTR_MAX, nla_data(band), - nla_len(band), NULL); + 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]); + 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 ) - *buf |= IWINFO_80211_N; + /* Treat any nonzero capability as 11n */ + if (caps > 0) + *modes |= IWINFO_80211_N; - 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); + 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 (!freqs[NL80211_FREQUENCY_ATTR_FREQ]) + continue; - if( nla_get_u32(freqs[NL80211_FREQUENCY_ATTR_FREQ]) < 2485 ) - { - *buf |= IWINFO_80211_B; - *buf |= IWINFO_80211_G; - } - else - { - *buf |= IWINFO_80211_A; - } + if (nla_get_u32(freqs[NL80211_FREQUENCY_ATTR_FREQ]) < 2485) + { + *modes |= IWINFO_80211_B; + *modes |= IWINFO_80211_G; + } + else + { + *modes |= IWINFO_80211_A; } } - nl80211_free(res); } + } + + return NL_SKIP; +} + +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_cb(req, nl80211_get_hwmodelist_cb, buf); + nl80211_send(req); nl80211_free(req); } @@ -1585,7 +1625,7 @@ int nl80211_get_mbssid_support(const char *ifname, int *buf) /* Test whether we can create another interface */ char *nif = nl80211_ifadd(ifname); - if( nif ) + if (nif) { *buf = (iwinfo_ifmac(nif) && iwinfo_ifup(nif)); diff --git a/contrib/package/iwinfo/src/iwinfo_nl80211.h b/contrib/package/iwinfo/src/iwinfo_nl80211.h index 7f6ffeaaa..edad085b4 100644 --- a/contrib/package/iwinfo/src/iwinfo_nl80211.h +++ b/contrib/package/iwinfo/src/iwinfo_nl80211.h @@ -45,8 +45,6 @@ struct nl80211_msg_conveyor { int custom_cb; struct nl_msg *msg; struct nl_cb *cb; - struct genlmsghdr *hdr; - struct nlattr *attr[NL80211_ATTR_MAX + 1]; }; struct nl80211_rssi_rate { @@ -60,6 +58,11 @@ struct nl80211_assoc_count { int count; }; +struct nl80211_arraybuf { + void *buf; + int count; +}; + int nl80211_probe(const char *ifname); int nl80211_get_mode(const char *ifname, char *buf); int nl80211_get_ssid(const char *ifname, char *buf);