-// vim:ts=8:expandtab
+// vim:ts=4:sw=4:expandtab
+#include <config.h>
+#include <sys/socket.h>
#include <sys/stat.h>
#include <stdlib.h>
#include <ifaddrs.h>
+#if defined(__OpenBSD__) || defined(__DragonFly__)
+#include <sys/types.h>
+#include <sys/sockio.h>
+#include <sys/ioctl.h>
+#include <net/if.h>
+#endif
+#if defined(__OpenBSD__)
+#include <net80211/ieee80211.h>
+#include <net80211/ieee80211_ioctl.h>
+#elif defined(__DragonFly__)
+#include <netproto/802_11/ieee80211_ioctl.h>
+#endif
#include "i3status.h"
-const char *first_eth_interface(const net_type_t type) {
- static char *interface = NULL;
- struct ifaddrs *ifaddr, *addrp;
- struct stat stbuf;
- static char path[1024];
-
- getifaddrs(&ifaddr);
-
- if (ifaddr == NULL)
- return NULL;
-
- free(interface);
- interface = NULL;
- for (addrp = ifaddr;
- addrp != NULL;
- addrp = addrp->ifa_next) {
- if (strncasecmp("lo", addrp->ifa_name, strlen("lo")) == 0)
- continue;
- // Skip this interface if it is a wireless interface.
- snprintf(path, sizeof(path), "/sys/class/net/%s/wireless", addrp->ifa_name);
- const bool is_wireless = (stat(path, &stbuf) == 0);
- if (( is_wireless && type == NET_TYPE_ETHERNET) ||
- (!is_wireless && type == NET_TYPE_WIRELESS))
- continue;
- interface = strdup(addrp->ifa_name);
- break;
+#ifdef __OpenBSD__
+#define LOOPBACK_DEV "lo0"
+#else
+#define LOOPBACK_DEV "lo"
+#endif
+
+static bool sysfs_devtype(char *dest, size_t n, const char *ifnam) {
+ FILE *fp;
+ char buf[1024];
+
+ snprintf(buf, sizeof(buf), "/sys/class/net/%s/uevent", ifnam);
+ if ((fp = fopen(buf, "r")) == NULL)
+ return false;
+
+ dest[0] = '\0';
+
+ while (fgets(buf, sizeof(buf), fp)) {
+ size_t slen;
+ char *s;
+
+ slen = strlen(buf);
+ /* Line is too long to fit in the buffer */
+ if (buf[slen - 1] != '\n' && !feof(fp))
+ break;
+ if ((s = strchr(buf, '='))) {
+ if (strncmp(buf, "DEVTYPE", s - buf))
+ continue;
+ buf[slen - 1] = '\0';
+ strncpy(dest, ++s, n);
+ break;
+ }
+ }
+ fclose(fp);
+ return true;
+}
+
+static bool is_virtual(const char *ifname) {
+ char path[1024];
+ char *target = NULL;
+ bool is_virtual = false;
+
+ snprintf(path, sizeof(path), "/sys/class/net/%s", ifname);
+ if ((target = realpath(path, NULL))) {
+ if (BEGINS_WITH(target, "/sys/devices/virtual/")) {
+ is_virtual = true;
}
+ }
- freeifaddrs(ifaddr);
- return interface;
+ free(target);
+ return is_virtual;
}
+static net_type_t iface_type(const char *ifname) {
+#if defined(__OpenBSD__)
+ /*
+ *First determine if the device is a wireless device by trying two ioctl(2)
+ * commands against it. If either succeeds we can be sure it's a wireless
+ * device.
+ * Otherwise we try another ioctl(2) to determine the interface media. If that
+ * fails it's not an ethernet device eiter.
+ */
+ struct ifreq ifr;
+ struct ieee80211_bssid bssid;
+ struct ieee80211_nwid nwid;
+#elif defined(__DragonFly__)
+ struct ieee80211req ifr;
+#endif
+#if defined(__OpenBSD__) || defined(__DragonFly__)
+ struct ifmediareq ifmr;
+ int s;
+#endif
+#if defined(__OpenBSD__)
+ int ibssid, inwid;
+#endif
+#if defined(__OpenBSD__) || defined(__DragonFly__)
+ if ((s = socket(AF_INET, SOCK_DGRAM, 0)) == -1)
+ return NET_TYPE_OTHER;
+
+ memset(&ifr, 0, sizeof(ifr));
+#endif
+#if defined(__OpenBSD__)
+ ifr.ifr_data = (caddr_t)&nwid;
+ (void)strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
+ inwid = ioctl(s, SIOCG80211NWID, (caddr_t)&ifr);
+
+ memset(&bssid, 0, sizeof(bssid));
+ strlcpy(bssid.i_name, ifname, sizeof(bssid.i_name));
+ ibssid = ioctl(s, SIOCG80211BSSID, &bssid);
+
+ if (ibssid == 0 || inwid == 0) {
+ close(s);
+ return NET_TYPE_WIRELESS;
+ }
+#elif defined(__DragonFly__)
+ (void)strlcpy(ifr.i_name, ifname, sizeof(ifr.i_name));
+ ifr.i_type = IEEE80211_IOC_NUMSSIDS;
+ if (ioctl(s, SIOCG80211, &ifr) == 0) {
+ close(s);
+ return NET_TYPE_WIRELESS;
+ }
+#endif
+#if defined(__OpenBSD__) || defined(__DragonFly__)
+ (void)memset(&ifmr, 0, sizeof(ifmr));
+ (void)strlcpy(ifmr.ifm_name, ifname, sizeof(ifmr.ifm_name));
+
+ if (ioctl(s, SIOCGIFMEDIA, (caddr_t)&ifmr) < 0) {
+ close(s);
+ return NET_TYPE_OTHER;
+ } else {
+ close(s);
+ return NET_TYPE_ETHERNET;
+ }
+#else
+ char devtype[32];
+
+ if (!sysfs_devtype(devtype, sizeof(devtype), ifname))
+ return NET_TYPE_OTHER;
+
+ /* Default to Ethernet when no devtype is available */
+ if (!devtype[0])
+ return NET_TYPE_ETHERNET;
+
+ if (strcmp(devtype, "wlan") == 0)
+ return NET_TYPE_WIRELESS;
+
+ if (strcmp(devtype, "wwan") == 0)
+ return NET_TYPE_OTHER;
+
+ return NET_TYPE_OTHER;
+#endif
+ return NET_TYPE_OTHER;
+}
+
+const char *first_eth_interface(const net_type_t type) {
+ static char *interface = NULL;
+ struct ifaddrs *ifaddr, *addrp;
+ net_type_t iftype;
+
+ getifaddrs(&ifaddr);
+
+ if (ifaddr == NULL)
+ return NULL;
+
+ free(interface);
+ interface = NULL;
+ for (addrp = ifaddr;
+ addrp != NULL;
+ addrp = addrp->ifa_next) {
+ if (strncasecmp(LOOPBACK_DEV, addrp->ifa_name, strlen(LOOPBACK_DEV)) == 0)
+ continue;
+ if (addrp->ifa_addr == NULL)
+ continue;
+#ifdef __OpenBSD__
+ if (addrp->ifa_addr->sa_family != AF_LINK)
+ continue;
+#else
+ // Skip PF_PACKET addresses (MAC addresses), as they are present on any
+ // ethernet interface.
+ if (addrp->ifa_addr->sa_family != AF_INET &&
+ addrp->ifa_addr->sa_family != AF_INET6)
+ continue;
+#endif /* !__OpenBSD__ */
+ // Skip this interface if it is a wireless interface.
+ iftype = iface_type(addrp->ifa_name);
+ if (iftype != type)
+ continue;
+ if (is_virtual(addrp->ifa_name))
+ continue;
+ interface = strdup(addrp->ifa_name);
+ break;
+ }
+
+ freeifaddrs(ifaddr);
+ return interface;
+}
projects / i3 / i3status / blobdiff