From 9139a1b136fa2b5adfcac0ac09a4f61aa1ee1ff4 Mon Sep 17 00:00:00 2001 From: Thomas Ulmer Date: Wed, 4 Feb 2026 14:24:16 -0800 Subject: full reorg --- slstatus/slstatus-1.1/components/wifi.c | 413 -------------------------------- 1 file changed, 413 deletions(-) delete mode 100644 slstatus/slstatus-1.1/components/wifi.c (limited to 'slstatus/slstatus-1.1/components/wifi.c') diff --git a/slstatus/slstatus-1.1/components/wifi.c b/slstatus/slstatus-1.1/components/wifi.c deleted file mode 100644 index 23af201..0000000 --- a/slstatus/slstatus-1.1/components/wifi.c +++ /dev/null @@ -1,413 +0,0 @@ -/* See LICENSE file for copyright and license details. */ -#include -#include -#include -#include -#include -#include - -#include "../slstatus.h" -#include "../util.h" - -#define RSSI_TO_PERC(rssi) \ - rssi >= -50 ? 100 : \ - (rssi <= -100 ? 0 : \ - (2 * (rssi + 100))) - -#if defined(__linux__) - #include - #include - #include - #include - #include - - static int nlsock = -1; - static uint32_t seq = 1; - static char resp[4096]; - - static char * - findattr(int attr, const char *p, const char *e, size_t *len) - { - while (p < e) { - struct nlattr nla; - memcpy(&nla, p, sizeof(nla)); - if (nla.nla_type == attr) { - *len = nla.nla_len - NLA_HDRLEN; - return (char *)(p + NLA_HDRLEN); - } - p += NLA_ALIGN(nla.nla_len); - } - return NULL; - } - - static uint16_t - nl80211fam(void) - { - static const char family[] = "nl80211"; - static uint16_t id; - ssize_t r; - size_t len; - char ctrl[NLMSG_HDRLEN+GENL_HDRLEN+NLA_HDRLEN+NLA_ALIGN(sizeof(family))] = {0}, *p = ctrl; - - if (id) - return id; - - memcpy(p, &(struct nlmsghdr){ - .nlmsg_len = sizeof(ctrl), - .nlmsg_type = GENL_ID_CTRL, - .nlmsg_flags = NLM_F_REQUEST, - .nlmsg_seq = seq++, - .nlmsg_pid = 0, - }, sizeof(struct nlmsghdr)); - p += NLMSG_HDRLEN; - memcpy(p, &(struct genlmsghdr){ - .cmd = CTRL_CMD_GETFAMILY, - .version = 1, - }, sizeof(struct genlmsghdr)); - p += GENL_HDRLEN; - memcpy(p, &(struct nlattr){ - .nla_len = NLA_HDRLEN+sizeof(family), - .nla_type = CTRL_ATTR_FAMILY_NAME, - }, sizeof(struct nlattr)); - p += NLA_HDRLEN; - memcpy(p, family, sizeof(family)); - - if (nlsock < 0) - nlsock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC); - if (nlsock < 0) { - warn("socket 'AF_NETLINK':"); - return 0; - } - if (send(nlsock, ctrl, sizeof(ctrl), 0) != sizeof(ctrl)) { - warn("send 'AF_NETLINK':"); - return 0; - } - r = recv(nlsock, resp, sizeof(resp), 0); - if (r < 0) { - warn("recv 'AF_NETLINK':"); - return 0; - } - if ((size_t)r <= sizeof(ctrl)) - return 0; - p = findattr(CTRL_ATTR_FAMILY_ID, resp + sizeof(ctrl), resp + r, &len); - if (p && len == 2) - memcpy(&id, p, 2); - - return id; - } - - static int - ifindex(const char *interface) - { - static struct ifreq ifr; - static int ifsock = -1; - - if (ifsock < 0) - ifsock = socket(AF_UNIX, SOCK_DGRAM, 0); - if (ifsock < 0) { - warn("socket 'AF_UNIX':"); - return -1; - } - if (strcmp(ifr.ifr_name, interface) != 0) { - strcpy(ifr.ifr_name, interface); - if (ioctl(ifsock, SIOCGIFINDEX, &ifr) != 0) { - warn("ioctl 'SIOCGIFINDEX':"); - return -1; - } - } - return ifr.ifr_ifindex; - } - - const char * - wifi_essid(const char *interface) - { - uint16_t fam = nl80211fam(); - ssize_t r; - size_t len; - char req[NLMSG_HDRLEN+GENL_HDRLEN+NLA_HDRLEN+NLA_ALIGN(4)] = {0}, *p = req; - int idx = ifindex(interface); - if (!fam) { - fprintf(stderr, "nl80211 family not found\n"); - return NULL; - } - if (idx < 0) { - fprintf(stderr, "interface %s not found\n", interface); - return NULL; - } - - memcpy(p, &(struct nlmsghdr){ - .nlmsg_len = sizeof(req), - .nlmsg_type = fam, - .nlmsg_flags = NLM_F_REQUEST, - .nlmsg_seq = seq++, - .nlmsg_pid = 0, - }, sizeof(struct nlmsghdr)); - p += NLMSG_HDRLEN; - memcpy(p, &(struct genlmsghdr){ - .cmd = NL80211_CMD_GET_INTERFACE, - .version = 1, - }, sizeof(struct genlmsghdr)); - p += GENL_HDRLEN; - memcpy(p, &(struct nlattr){ - .nla_len = NLA_HDRLEN+4, - .nla_type = NL80211_ATTR_IFINDEX, - }, sizeof(struct nlattr)); - p += NLA_HDRLEN; - memcpy(p, &(uint32_t){idx}, 4); - - if (send(nlsock, req, sizeof(req), 0) != sizeof(req)) { - warn("send 'AF_NETLINK':"); - return NULL; - } - r = recv(nlsock, resp, sizeof(resp), 0); - if (r < 0) { - warn("recv 'AF_NETLINK':"); - return NULL; - } - - if ((size_t)r <= NLMSG_HDRLEN + GENL_HDRLEN) - return NULL; - p = findattr(NL80211_ATTR_SSID, resp + NLMSG_HDRLEN + GENL_HDRLEN, resp + r, &len); - if (p) - p[len] = 0; - - return p; - } - - const char * - wifi_perc(const char *interface) - { - static char strength[4]; - struct nlmsghdr hdr; - uint16_t fam = nl80211fam(); - ssize_t r; - size_t len; - char req[NLMSG_HDRLEN + GENL_HDRLEN + NLA_HDRLEN + NLA_ALIGN(4)] = {0}, *p = req, *e; - int idx = ifindex(interface); - - if (idx < 0) { - fprintf(stderr, "interface %s not found\n", interface); - return NULL; - } - - memcpy(p, &(struct nlmsghdr){ - .nlmsg_len = sizeof(req), - .nlmsg_type = fam, - .nlmsg_flags = NLM_F_REQUEST|NLM_F_DUMP, - .nlmsg_seq = seq++, - .nlmsg_pid = 0, - }, sizeof(struct nlmsghdr)); - p += NLMSG_HDRLEN; - memcpy(p, &(struct genlmsghdr){ - .cmd = NL80211_CMD_GET_STATION, - .version = 1, - }, sizeof(struct genlmsghdr)); - p += GENL_HDRLEN; - memcpy(p, &(struct nlattr){ - .nla_len = NLA_HDRLEN + 4, - .nla_type = NL80211_ATTR_IFINDEX, - }, sizeof(struct nlattr)); - p += NLA_HDRLEN; - memcpy(p, &idx, 4); - - if (send(nlsock, req, sizeof(req), 0) != sizeof(req)) { - warn("send 'AF_NETLINK':"); - return NULL; - } - - *strength = 0; - while (1) { - r = recv(nlsock, resp, sizeof(resp), 0); - if (r < 0) { - warn("recv 'AF_NETLINK':"); - return NULL; - } - if ((size_t)r < sizeof(hdr)) - return NULL; - - for (p = resp; p != resp + r && (size_t)(resp + r-p) >= sizeof(hdr); p = e) { - memcpy(&hdr, p, sizeof(hdr)); - e = resp + r - p < hdr.nlmsg_len ? resp + r : p + hdr.nlmsg_len; - - if (!*strength && hdr.nlmsg_len > NLMSG_HDRLEN+GENL_HDRLEN) { - p += NLMSG_HDRLEN+GENL_HDRLEN; - p = findattr(NL80211_ATTR_STA_INFO, p, e, &len); - if (p) - p = findattr(NL80211_STA_INFO_SIGNAL_AVG, p, e, &len); - if (p && len == 1) - snprintf(strength, sizeof(strength), "%d", RSSI_TO_PERC(*p)); - } - if (hdr.nlmsg_type == NLMSG_DONE) - return *strength ? strength : NULL; - } - } - } -#elif defined(__OpenBSD__) - #include - #include - #include - #include /* before for NBBY */ - #include - #include - #include - - static int - load_ieee80211_nodereq(const char *interface, struct ieee80211_nodereq *nr) - { - struct ieee80211_bssid bssid; - int sockfd; - uint8_t zero_bssid[IEEE80211_ADDR_LEN]; - - memset(&bssid, 0, sizeof(bssid)); - memset(nr, 0, sizeof(struct ieee80211_nodereq)); - if ((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { - warn("socket 'AF_INET':"); - return 0; - } - strlcpy(bssid.i_name, interface, sizeof(bssid.i_name)); - if ((ioctl(sockfd, SIOCG80211BSSID, &bssid)) < 0) { - warn("ioctl 'SIOCG80211BSSID':"); - close(sockfd); - return 0; - } - memset(&zero_bssid, 0, sizeof(zero_bssid)); - if (memcmp(bssid.i_bssid, zero_bssid, - IEEE80211_ADDR_LEN) == 0) { - close(sockfd); - return 0; - } - strlcpy(nr->nr_ifname, interface, sizeof(nr->nr_ifname)); - memcpy(&nr->nr_macaddr, bssid.i_bssid, sizeof(nr->nr_macaddr)); - if ((ioctl(sockfd, SIOCG80211NODE, nr)) < 0 && nr->nr_rssi) { - warn("ioctl 'SIOCG80211NODE':"); - close(sockfd); - return 0; - } - - return close(sockfd), 1; - } - - const char * - wifi_perc(const char *interface) - { - struct ieee80211_nodereq nr; - int q; - - if (load_ieee80211_nodereq(interface, &nr)) { - if (nr.nr_max_rssi) - q = IEEE80211_NODEREQ_RSSI(&nr); - else - q = RSSI_TO_PERC(nr.nr_rssi); - - return bprintf("%d", q); - } - - return NULL; - } - - const char * - wifi_essid(const char *interface) - { - struct ieee80211_nodereq nr; - - if (load_ieee80211_nodereq(interface, &nr)) - return bprintf("%s", nr.nr_nwid); - - return NULL; - } -#elif defined(__FreeBSD__) - #include - #include - - int - load_ieee80211req(int sock, const char *interface, void *data, int type, size_t *len) - { - char warn_buf[256]; - struct ieee80211req ireq; - memset(&ireq, 0, sizeof(ireq)); - ireq.i_type = type; - ireq.i_data = (caddr_t) data; - ireq.i_len = *len; - - strlcpy(ireq.i_name, interface, sizeof(ireq.i_name)); - if (ioctl(sock, SIOCG80211, &ireq) < 0) { - snprintf(warn_buf, sizeof(warn_buf), - "ioctl: 'SIOCG80211': %d", type); - warn(warn_buf); - return 0; - } - - *len = ireq.i_len; - return 1; - } - - const char * - wifi_perc(const char *interface) - { - union { - struct ieee80211req_sta_req sta; - uint8_t buf[24 * 1024]; - } info; - uint8_t bssid[IEEE80211_ADDR_LEN]; - int rssi_dbm; - int sockfd; - size_t len; - const char *fmt; - - if ((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { - warn("socket 'AF_INET':"); - return NULL; - } - - /* Retreive MAC address of interface */ - len = IEEE80211_ADDR_LEN; - fmt = NULL; - if (load_ieee80211req(sockfd, interface, &bssid, IEEE80211_IOC_BSSID, &len)) - { - /* Retrieve info on station with above BSSID */ - memset(&info, 0, sizeof(info)); - memcpy(info.sta.is_u.macaddr, bssid, sizeof(bssid)); - - len = sizeof(info); - if (load_ieee80211req(sockfd, interface, &info, IEEE80211_IOC_STA_INFO, &len)) { - rssi_dbm = info.sta.info[0].isi_noise + - info.sta.info[0].isi_rssi / 2; - - fmt = bprintf("%d", RSSI_TO_PERC(rssi_dbm)); - } - } - - close(sockfd); - return fmt; - } - - const char * - wifi_essid(const char *interface) - { - char ssid[IEEE80211_NWID_LEN + 1]; - size_t len; - int sockfd; - const char *fmt; - - if ((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { - warn("socket 'AF_INET':"); - return NULL; - } - - fmt = NULL; - len = sizeof(ssid); - memset(&ssid, 0, len); - if (load_ieee80211req(sockfd, interface, &ssid, IEEE80211_IOC_SSID, &len)) { - if (len < sizeof(ssid)) - len += 1; - else - len = sizeof(ssid); - - ssid[len - 1] = '\0'; - fmt = bprintf("%s", ssid); - } - - close(sockfd); - return fmt; - } -#endif -- cgit v1.2.3