-// vim:ts=8:expandtab
+// vim:ts=4:sw=4:expandtab
+#include <config.h>
#include <string.h>
#include <limits.h>
#include <stdio.h>
+#include <stdlib.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <net/if.h>
#include <netinet/in.h>
#include <arpa/inet.h>
+#include <yajl/yajl_gen.h>
+#include <yajl/yajl_version.h>
#include "i3status.h"
-#if defined(LINUX)
+#if defined(__linux__)
#include <linux/ethtool.h>
#include <linux/sockios.h>
-#define PART_ETHSPEED "E: %s (%d Mbit/s)"
+#define PART_ETHSPEED "E: %s (%d Mbit/s)"
#endif
-#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
+#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
#include <net/if_media.h>
-#define IFM_TYPE_MATCH(dt, t) \
- (IFM_TYPE((dt)) == 0 || IFM_TYPE((dt)) == IFM_TYPE((t)))
-#define PART_ETHSPEED "E: %s (%s)"
+#define PART_ETHSPEED "E: %s (%s)"
+#endif
+#if defined(__OpenBSD__) || defined(__NetBSD__)
+#include <errno.h>
+#include <net/if_media.h>
#endif
static int print_eth_speed(char *outwalk, const char *interface) {
-#if defined(LINUX)
- int ethspeed = 0;
-#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
- char *ethspeed;
+#if defined(__linux__)
+ int ethspeed = 0;
+ struct ifreq ifr;
+ struct ethtool_cmd ecmd;
+
+ ecmd.cmd = ETHTOOL_GSET;
+ (void)memset(&ifr, 0, sizeof(ifr));
+ ifr.ifr_data = (caddr_t)&ecmd;
+ (void)strcpy(ifr.ifr_name, interface);
+ if (ioctl(general_socket, SIOCETHTOOL, &ifr) == 0) {
+ ethspeed = (ecmd.speed == USHRT_MAX ? 0 : ethtool_cmd_speed(&ecmd));
+ return sprintf(outwalk, "%d Mbit/s", ethspeed);
+ } else
+ return sprintf(outwalk, "?");
+#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
+ const char *ethspeed;
+ struct ifmediareq ifm;
+ (void)memset(&ifm, 0, sizeof(ifm));
+ (void)strncpy(ifm.ifm_name, interface, sizeof(ifm.ifm_name));
+ int ret;
+#ifdef SIOCGIFXMEDIA
+ ret = ioctl(general_socket, SIOCGIFXMEDIA, (caddr_t)&ifm);
+ if (ret < 0)
#endif
-
-#if defined(LINUX)
- /* This code path requires root privileges */
- struct ifreq ifr;
- struct ethtool_cmd ecmd;
-
- ecmd.cmd = ETHTOOL_GSET;
- (void)memset(&ifr, 0, sizeof(ifr));
- ifr.ifr_data = (caddr_t)&ecmd;
- (void)strcpy(ifr.ifr_name, interface);
- if (ioctl(general_socket, SIOCETHTOOL, &ifr) == 0) {
- ethspeed = (ecmd.speed == USHRT_MAX ? 0 : ecmd.speed);
- return sprintf(outwalk, "%d Mbit/s", ethspeed);
- } else return sprintf(outwalk, "?");
-#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
- struct ifmediareq ifm;
- (void)memset(&ifm, 0, sizeof(ifm));
- (void)strncpy(ifm.ifm_name, interface, sizeof(ifm.ifm_name));
- int ret = ioctl(general_socket, SIOCGIFMEDIA, (caddr_t)&ifm);
-
- /* Get the description of the media type, partially taken from
- * FreeBSD's ifconfig */
- const struct ifmedia_description *desc;
- struct ifmedia_description ifm_subtype_descriptions[] =
- IFM_SUBTYPE_ETHERNET_DESCRIPTIONS;
-
- for (desc = ifm_subtype_descriptions;
- desc->ifmt_string != NULL;
- desc++) {
- if (IFM_TYPE_MATCH(desc->ifmt_word, ifm.ifm_active) &&
- IFM_SUBTYPE(desc->ifmt_word) == IFM_SUBTYPE(ifm.ifm_active))
- break;
- }
- ethspeed = (desc->ifmt_string != NULL ? desc->ifmt_string : "?");
- return sprintf(outwalk, "%s", ethspeed);
+ ret = ioctl(general_socket, SIOCGIFMEDIA, (caddr_t)&ifm);
+ if (ret < 0)
+ return sprintf(outwalk, "?");
+
+ /* Get the description of the media type, partially taken from
+ * FreeBSD's ifconfig */
+ const struct ifmedia_description *desc;
+ static struct ifmedia_description ifm_subtype_descriptions[] =
+ IFM_SUBTYPE_ETHERNET_DESCRIPTIONS;
+
+ if (IFM_TYPE(ifm.ifm_active) != IFM_ETHER)
+ return sprintf(outwalk, "?");
+ if (ifm.ifm_status & IFM_AVALID && !(ifm.ifm_status & IFM_ACTIVE))
+ return sprintf(outwalk, "no carrier");
+ for (desc = ifm_subtype_descriptions;
+ desc->ifmt_string != NULL;
+ desc++) {
+ if (desc->ifmt_word == IFM_SUBTYPE(ifm.ifm_active))
+ break;
+ }
+ ethspeed = (desc->ifmt_string != NULL ? desc->ifmt_string : "?");
+ return sprintf(outwalk, "%s", ethspeed);
+#elif defined(__OpenBSD__) || defined(__NetBSD__)
+ const char *ethspeed;
+ struct ifmediareq ifmr;
+
+ (void)memset(&ifmr, 0, sizeof(ifmr));
+ (void)strlcpy(ifmr.ifm_name, interface, sizeof(ifmr.ifm_name));
+
+ if (ioctl(general_socket, SIOCGIFMEDIA, (caddr_t)&ifmr) < 0) {
+ if (errno != E2BIG)
+ return sprintf(outwalk, "?");
+ }
+
+ struct ifmedia_description *desc;
+ struct ifmedia_description ifm_subtype_descriptions[] =
+ IFM_SUBTYPE_DESCRIPTIONS;
+
+ for (desc = ifm_subtype_descriptions; desc->ifmt_string != NULL; desc++) {
+ /*
+ * Skip these non-informative values and go right ahead to the
+ * actual speeds.
+ */
+ if (BEGINS_WITH(desc->ifmt_string, "autoselect") ||
+ BEGINS_WITH(desc->ifmt_string, "auto"))
+ continue;
+
+ if (IFM_TYPE_MATCH(desc->ifmt_word, ifmr.ifm_active) &&
+ IFM_SUBTYPE(desc->ifmt_word) == IFM_SUBTYPE(ifmr.ifm_active))
+ break;
+ }
+ ethspeed = (desc->ifmt_string != NULL ? desc->ifmt_string : "?");
+ return sprintf(outwalk, "%s", ethspeed);
+
+#else
+ return sprintf(outwalk, "?");
#endif
}
/*
* Combines ethernet IP addresses and speed (if requested) for displaying
*
+ * Table summarizing what is the decision to prefer IPv4 or IPv6
+ * based their values.
+ *
+ * | ipv4_address | ipv6_address | Chosen IP | Color |
+ * |--------------|--------------|-----------|-------------------|
+ * | NULL | NULL | None | bad (red) |
+ * | NULL | no IP | IPv6 | degraded (orange) |
+ * | NULL | ::1/128 | IPv6 | ok (green) |
+ * | no IP | NULL | IPv4 | degraded |
+ * | no IP | no IP | IPv4 | degraded |
+ * | no IP | ::1/128 | IPv6 | ok |
+ * | 127.0.0.1 | NULL | IPv4 | ok |
+ * | 127.0.0.1 | no IP | IPv4 | ok |
+ * | 127.0.0.1 | ::1/128 | IPv4 | ok |
*/
void print_eth_info(yajl_gen json_gen, char *buffer, const char *interface, const char *format_up, const char *format_down) {
- const char *walk;
- const char *ip_address = get_ip_addr(interface);
- char *outwalk = buffer;
+ const char *format = format_down; // default format
- INSTANCE(interface);
+ const char *walk;
+ char *outwalk = buffer;
- if (ip_address == NULL) {
- START_COLOR("color_bad");
- outwalk += sprintf(outwalk, "%s", format_down);
- goto out;
- }
+ INSTANCE(interface);
- START_COLOR("color_good");
+ char *ipv4_address = sstrdup(get_ip_addr(interface, AF_INET));
+ char *ipv6_address = sstrdup(get_ip_addr(interface, AF_INET6));
- for (walk = format_up; *walk != '\0'; walk++) {
- if (*walk != '%') {
- *(outwalk++) = *walk;
- continue;
- }
-
- if (strncmp(walk+1, "ip", strlen("ip")) == 0) {
- outwalk += sprintf(outwalk, "%s", ip_address);
- walk += strlen("ip");
- } else if (strncmp(walk+1, "speed", strlen("speed")) == 0) {
- outwalk += print_eth_speed(outwalk, interface);
- walk += strlen("speed");
- }
+ /*
+ * Removing '%' and following characters from IPv6 since the interface identifier is redundant,
+ * as the output already includes the interface name.
+ */
+ if (ipv6_address != NULL) {
+ char *prct_ptr = strstr(ipv6_address, "%");
+ if (prct_ptr != NULL) {
+ *prct_ptr = '\0';
+ }
+ }
+
+ bool prefer_ipv4 = true;
+ if (ipv4_address == NULL) {
+ if (ipv6_address == NULL) {
+ START_COLOR("color_bad");
+ goto out;
+ } else {
+ prefer_ipv4 = false;
}
+ } else if (BEGINS_WITH(ipv4_address, "no IP") && ipv6_address != NULL && !BEGINS_WITH(ipv6_address, "no IP")) {
+ prefer_ipv4 = false;
+ }
+
+ format = format_up;
+
+ const char *ip_address = (prefer_ipv4) ? ipv4_address : ipv6_address;
+ if (BEGINS_WITH(ip_address, "no IP")) {
+ START_COLOR("color_degraded");
+ } else {
+ START_COLOR("color_good");
+ }
out:
- END_COLOR;
- OUTPUT_FULL_TEXT(buffer);
+ for (walk = format; *walk != '\0'; walk++) {
+ if (*walk != '%') {
+ *(outwalk++) = *walk;
+
+ } else if (BEGINS_WITH(walk + 1, "ip")) {
+ outwalk += sprintf(outwalk, "%s", ip_address);
+ walk += strlen("ip");
+
+ } else if (BEGINS_WITH(walk + 1, "speed")) {
+ outwalk += print_eth_speed(outwalk, interface);
+ walk += strlen("speed");
+
+ } else if (BEGINS_WITH(walk + 1, "interface")) {
+ outwalk += sprintf(outwalk, "%s", interface);
+ walk += strlen("interface");
+
+ } else {
+ *(outwalk++) = '%';
+ }
+ }
+ END_COLOR;
+ free(ipv4_address);
+ free(ipv6_address);
+ OUTPUT_FULL_TEXT(buffer);
}
projects / i3 / i3status / blobdiff