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net autodetect

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Drath Vader
2026-10-02 13:13:16 +02:00
parent a92122b41d
commit 59bb33ff7f
2 changed files with 26 additions and 3 deletions
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3
src/main.c
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@@ -19,7 +19,6 @@
static constexpr uint8_t lcd_contrast = 250; static constexpr uint8_t lcd_contrast = 250;
static constexpr uint16_t refresh_interval_ms = 1000; static constexpr uint16_t refresh_interval_ms = 1000;
static constexpr char netif[] = "enp10s0";
static constexpr char cpu_pcidev[] = "/sys/bus/pci/devices/0000:00:18.3"; static constexpr char cpu_pcidev[] = "/sys/bus/pci/devices/0000:00:18.3";
static constexpr char gpu_pcidev[] = "/sys/class/drm/renderD128/device"; static constexpr char gpu_pcidev[] = "/sys/class/drm/renderD128/device";
@@ -52,7 +51,7 @@ static void *sensors_thread(void *arg) {
/* set up paths for the sensors */ /* set up paths for the sensors */
strcpy(sensors->home.mountpoint, "/home/drath"); strcpy(sensors->home.mountpoint, "/home/drath");
strcpy(sensors->gry.mountpoint, "/var/mnt/gry"); strcpy(sensors->gry.mountpoint, "/var/mnt/gry");
strcpy(sensors->net.device, netif); // strcpy(sensors->net.device, netif);
cpu_detect(&sensors->cpu, cpu_pcidev); cpu_detect(&sensors->cpu, cpu_pcidev);
gpu_detect(&sensors->gpu, gpu_pcidev); gpu_detect(&sensors->gpu, gpu_pcidev);
sys_detect(&sensors->sys, "nct6775.656"); sys_detect(&sensors->sys, "nct6775.656");

26
src/sys.c
View File

@@ -2,6 +2,9 @@
#include <stdlib.h> #include <stdlib.h>
#include <string.h> #include <string.h>
#include <sys/statvfs.h> #include <sys/statvfs.h>
#include <ifaddrs.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <time.h> #include <time.h>
#include "log.h" #include "log.h"
@@ -91,7 +94,28 @@ void sys_get_network(struct network_t *network) {
} }
void sys_netdev_detect(struct network_t *network) { void sys_netdev_detect(struct network_t *network) {
applog(LOG_INF, "Opening netdev %s", network->device); struct ifaddrs *ifaddr;
getifaddrs(&ifaddr);
char addr[INET_ADDRSTRLEN];
for (const struct ifaddrs *ifa = ifaddr; ifa != nullptr; ifa = ifa->ifa_next) {
// ugliest fucking if
if (!ifa->ifa_addr ||
ifa->ifa_addr->sa_family != AF_INET ||
!(ifa->ifa_flags & IFF_UP) ||
!(ifa->ifa_flags & IFF_RUNNING) ||
ifa->ifa_flags & IFF_LOOPBACK)
continue;
const struct sockaddr_in *sin = (struct sockaddr_in *)ifa->ifa_addr;
inet_ntop(AF_INET, &sin->sin_addr, addr, sizeof(addr));
if (strncmp("10.0.1.", addr, 7) == 0) {
strcpy(network->device, ifa->ifa_name);
break;
}
}
freeifaddrs(ifaddr);
applog(LOG_INF, "Detected %s with addr %s", network->device, addr);
static char path[128]; static char path[128];
snprintf(path, sizeof(path), "/sys/class/net/%s/statistics/", network->device); snprintf(path, sizeof(path), "/sys/class/net/%s/statistics/", network->device);
open_sensor(&network->f_rx, path, "rx_bytes", nullptr, 1, SENSOR_U64); open_sensor(&network->f_rx, path, "rx_bytes", nullptr, 1, SENSOR_U64);