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Ensure qdisc is created on each interface

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Signed-off-by: alex18_huang <alex18_huang@accton.com>
This commit is contained in:
alex18_huang
2025-04-10 14:30:45 +08:00
parent cecb75e621
commit e3ce9c10e3
1 changed files with 13 additions and 16 deletions
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29
feeds/ucentral/udhcpinject/src/udhcpinject.c
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@@ -34,12 +34,12 @@ static char *provided_ports = NULL;
void cleanup_tc() {
char cmd[1024];
for (int i = 0; i < iface_count; i++) {
snprintf(cmd, sizeof(cmd), "tc filter del dev %s ingress pref 32 2>/dev/null",
snprintf(cmd, sizeof(cmd), "tc filter del dev %s ingress 2>/dev/null",
iface_map[i].iface);
system(cmd);
snprintf(cmd, sizeof(cmd), "tc qdisc del dev %s ingress 2>/dev/null",
iface_map[i].iface);
system(cmd);
// snprintf(cmd, sizeof(cmd), "tc qdisc del dev %s ingress 2>/dev/null",
// iface_map[i].iface);
// system(cmd);
}
}
@@ -277,22 +277,18 @@ int setup_tc() {
}
for (int i = 0; i < iface_count; i++) {
snprintf(cmd, sizeof(cmd), "tc qdisc show dev %s ingress 2>/dev/null 1>2",
snprintf(cmd, sizeof(cmd), "tc qdisc add dev %s ingress 2>/dev/null 1>2",
iface_map[i].iface);
if (system(cmd) == 0) {
syslog(LOG_INFO, "Ingress qdisc already exists for %s\n", iface_map[i].iface);
int result = system(cmd);
if (result == 2) {
syslog(LOG_INFO, "Ingress qdisc already exists for %s on %s\n", iface_map[i].essid, iface_map[i].iface);
}
else {
snprintf(cmd, sizeof(cmd), "tc qdisc add dev %s ingress 2>/dev/null",
iface_map[i].iface);
if (system(cmd) != 0) {
syslog(LOG_ERR, "Failed to add qdisc for %s\n", iface_map[i].iface);
return -1;
}
else if (result == 1) {
syslog(LOG_INFO, "Failed to add ingress qdisc for %s on %s\n", iface_map[i].essid, iface_map[i].iface);
}
snprintf(cmd, sizeof(cmd),
"tc filter add dev %s ingress protocol ip pref 32 u32 "
"tc filter add dev %s ingress protocol ip u32 "
"match ip protocol 17 0xff "
"match u16 0x0044 0xffff at 20 "
"match u16 0x0043 0xffff at 22 "
@@ -317,7 +313,7 @@ void signal_handler(int sig) {
exit(0);
} else if (sig == SIGHUP) {
syslog(LOG_INFO, "Received reload signal, reconfiguring...\n");
sleep(5);
// Clean up existing resources
cleanup_tc();
@@ -586,6 +582,7 @@ int main(int argc, char *argv[]) {
return 1;
}
sleep(5);
if (parse_ssids(provided_ssids) != 0) {
syslog(LOG_ERR, "Failed to parse SSIDs\n");
cleanup();