support different dhcp client in Linux (#9490)

Some Linux environment like Yocto has no dhclient tools. So add a macro named CHIP_DEVICE_CONFIG_LINUX_DHCPC_CMD to config the command which used to query the IP address from the DHCP server. For example in Yocto cross compile : PLATFORM_CFLAGS='-DCHIP_DEVICE_CONFIG_WIFI_STATION_IF_NAME=\"mlan0\"", "-DCHIP_DEVICE_CONFIG_LINUX_DHCPC_CMD=\"udhcpc -b -i %s & \"' Signed-off-by: Haoran Wang <[email protected]>
project-chip · Sep 17, 2021 · 2656839 · 2656839
1 parent 7c24702
commit 2656839
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/src/platform/Linux/ConnectivityManagerImpl.cpp b/src/platform/Linux/ConnectivityManagerImpl.cpp
@@ -39,6 +39,10 @@
 #include <platform/internal/GenericConnectivityManagerImpl_WiFi.cpp>
 #endif
 
+#ifndef CHIP_DEVICE_CONFIG_LINUX_DHCPC_CMD
+#define CHIP_DEVICE_CONFIG_LINUX_DHCPC_CMD "dhclient -nw %s"
+#endif
+
 using namespace ::chip;
 using namespace ::chip::TLV;
 using namespace ::chip::DeviceLayer::Internal;
@@ -945,7 +949,7 @@ CHIP_ERROR ConnectivityManagerImpl::ProvisionWiFiNetwork(const char * ssid, cons
             // Run dhclient for IP on WiFi.
             // TODO: The wifi can be managed by networkmanager on linux so we don't have to care about this.
             char cmdBuffer[128];
-            sprintf(cmdBuffer, "dhclient -nw %s", CHIP_DEVICE_CONFIG_WIFI_STATION_IF_NAME);
+            sprintf(cmdBuffer, CHIP_DEVICE_CONFIG_LINUX_DHCPC_CMD, CHIP_DEVICE_CONFIG_WIFI_STATION_IF_NAME);
             int dhclientSystemRet = system(cmdBuffer);
             if (dhclientSystemRet != 0)
             {